old-cross-binutils/gdb/dwarf2loc.c

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/* DWARF 2 location expression support for GDB.
Copyright (C) 2003-2015 Free Software Foundation, Inc.
Contributed by Daniel Jacobowitz, MontaVista Software, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "ui-out.h"
#include "value.h"
#include "frame.h"
#include "gdbcore.h"
#include "target.h"
#include "inferior.h"
#include "ax.h"
#include "ax-gdb.h"
#include "regcache.h"
#include "objfiles.h"
gdb/ * NEWS: Document inlined function support. * Makefile.in (SFILES): Add inline-frame.c. (COMMON_OBS): Add inline-frame.o. * block.c (contained_in): Rewrite to use lexical nesting. (block_linkage_function): Skip inlined function blocks. (block_inlined_p): New. * block.h (struct block): Update comment. (block_inlined_p): New prototype. * blockframe.c (get_frame_block): Handle inlined functions. (get_frame_function): Do not use block_linkage_function. (block_innermost_frame): Use get_frame_block and contained_in. * breakpoint.c (watchpoint_check): Remove extra reinit_frame_cache. Skip over inlined functions. Simplify epilogue check. (bpstat_check_breakpoint_conditions): Use get_stack_frame_id. Update comments. (set_momentary_breakpoint): Only accept non-inlined frames. (watch_command_1): Use frame_unwind_caller_pc and frame_unwind_caller_id instead of get_prev_frame. (until_break_command): Likewise. Use get_stack_frame_id. * buildsym.c (end_symtab): Set SYMBOL_SYMTAB for block functions. * dwarf2loc.c (dwarf_expr_frame_base): Use block_linkage_function. * dwarf2read.c (process_die): Handle DW_TAG_inlined_subroutine. (read_func_scope, new_symbol): Likewise. Handle arguments specially for inlined functions without call site information. (inherit_abstract_dies): Allow tag mismatch for inlined subroutines. (die_specification): Treat DW_AT_abstract_origin as a specification. (read_type_die): Handle DW_TAG_inlined_subroutine. * frame-unwind.c (frame_unwind_init): Add inline_frame_unwind. * frame.c (fprint_frame_id): Print inline depth. (fprint_frame_type): Handle INLINE_FRAME and SENTINEL_FRAME. (skip_inlined_frames, get_stack_frame_id): New. (frame_unwind_caller_id): Use skip_inlined_frames. (frame_id_inlined_p): New. (frame_id_eq): Make the logic match the comments. Add inline_depth check. (frame_id_inner): Handle inlined functions. (frame_unwind_pc): New function, copied from frame_unwind_caller_pc. (frame_unwind_caller_pc): Use skip_inlined_frames and frame_unwind_pc. (get_prev_frame_1): Check for inline frames. Split out frame allocation to get_prev_frame_raw. (get_prev_frame_raw): New function. (get_prev_frame): Handle inline frames. (get_frame_pc): Use frame_unwind_pc. (get_frame_address_in_block): Skip inlined frames on both sides. (pc_notcurrent): Delete. (find_frame_sal): Rewrite to handle inline call sites. Use get_frame_address_in_block. (deprecated_update_frame_pc_hack): Make static. * frame.h: Update comments. (struct frame_id): Add inline_depth. (enum frame_type): Add INLINE_FRAME. (frame_id_inlined_p, get_stack_frame_id): New prototypes. * gdbthread.h (struct thread_info): Add step_stack_frame_id field. * infcmd.c (set_step_frame): New function. (step_once): Use set_step_frame. Handle inlined functions. (until_next_command): Use set_step_frame. (finish_backward), finish_forward): Use get_stack_frame_id. (finish_command): Support inlined functions. * inferior.h (set_step_info): New prototype. * infrun.c (RESUME_ALL): Use minus_one_ptid. (clear_proceed_status): Clear step_stack_frame_id. (init_wait_for_inferior): Call clear_inline_frame_state. (init_execution_control_state): Make static. (set_step_info): New function. (init_thread_stepping_state): Do not set the symtab or line here. (stepped_in_from): New function. (handle_inferior_event): Handle inlined functions. Use set_step_info. (insert_step_resume_breakpoint_at_frame): Use get_stack_frame_id. (struct inferior_status): Add step_stack_frame_id. (save_inferior_status, restore_inferior_status): Save and restore step_stack_frame_id. * inline-frame.c, inline-frame.h: New files. * minsyms.c (prim_record_minimal_symbol_and_info): Use XCALLOC. * regcache.c (regcache_write_pc): Call reinit_frame_cache. * s390-tdep.c (s390_prologue_frame_unwind_cache): Handle INLINE_FRAME. * stack.c (frame_show_address): New. (print_frame_info, print_frame): Use it. (find_frame_funname): Use get_frame_function. Handle inlined blocks. (frame_info): Mark inlined functions. (backtrace_command_1): Use get_current_user_frame. (print_frame_local_vars, print_frame_label_vars): Update comments. (return_command): Refuse inlined functions. * symtab.c (lookup_symbol_aux_local): Stop at inlined function boundaries. (find_function_start_sal): Avoid inlined functions. (completion_list_add_fields): New function. (default_make_symbol_completion_list): Use it. Use block_static_block and block_global_block. Check for inlined functions. (skip_prologue_using_sal): Avoid line number comparison across inlining. * symtab.h (struct symbol): Add is_inlined. (SYMBOL_INLINED): New. * target.c (target_resume): Call clear_inline_frame_state. * valops.c (value_of_variable): Check block_inlined_p. gdb/doc/ * gdb.texinfo (Debugging Optimized Code): New chapter. (Compiling for Debugging): Reference it. Move some text to the new section. gdb/testsuite/ * gdb.base/break.exp: Add an XFAIL for gcc/36748. * gdb.cp/annota2.exp: Accept frames-invalid in more places. * gdb.opt/Makefile.in (EXECUTABLES): Update. * gdb.opt/clobbered-registers-O2.exp: Update to GPL v3. * gdb.opt/inline-bt.c, gdb.opt/inline-bt.exp, gdb.opt/inline-cmds.c, gdb.opt/inline-cmds.exp, gdb.opt/inline-locals.c, gdb.opt/inline-locals.exp, gdb.opt/inline-markers.c: New files. * lib/gdb.exp (skip_inline_frame_tests): New function. (skip_inline_var_tests): New function.
2009-06-28 00:20:24 +00:00
#include "block.h"
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
#include "gdbcmd.h"
bfd * Makefile.am (dwarf2.lo): Use dwarf2.h, not elf/dwarf2.h. (elf-eh-frame.lo): Likewise. (elf32-bfin.lo): Likewise. (elf32-frv.lo): Likewise. (elf32-xc16x.lo): Likewise. * Makefile.in: Rebuild. * dwarf2.c: Included dwarf.h, not elf/dwarf2.h. * elf-eh-frame.c: Likewise. * elf32-bfin.c: Likewise. * elf32-frv.c: Likewise. * elf32-xc16x.c: Likewise. binutils * Makefile.am (dwarf.o): Refer to dwarf2.h, not elf/dwarf2.h. * Makefile.in: Rebuild. * dwarf.c: Include dwarf2.h, not elf/dwarf2.h. gas * Makefile.am (DEPTC_alpha_ecoff): Refer to dwarf2.h, not elf/dwarf2.h. (DEPTC_alpha_elf): Likewise. (DEPTC_alpha_evax): Likewise. (DEPTC_arm_elf): Likewise. (DEPTC_hppa_elf): Likewise. (DEPTC_i386_aout): Likewise. (DEPTC_i386_coff): Likewise. (DEPTC_i386_elf): Likewise. (DEPTC_m68k_aout): Likewise. (DEPTC_m68k_coff): Likewise. (DEPTC_m68k_elf): Likewise. (DEPTC_mips_coff): Likewise. (DEPTC_mips_ecoff): Likewise. (DEPTC_mips_elf): Likewise. (DEPTC_ppc_coff): Likewise. (DEPTC_ppc_elf): Likewise. (DEPTC_s390_elf): Likewise. (DEPTC_sh_coff): Likewise. (DEPTC_sh_elf): Likewise. (DEPTC_sh64_elf): Likewise. (DEPTC_sparc_aout): Likewise. (DEPTC_sparc_coff): Likewise. (DEPTC_sparc_elf): Likewise. (as.o): Likewise. (dwarf2dbg.o): Likewise. (dw2gencfi.o): Likewise. (ehopt.o): Likewise. (read.o): Likewise. * Makefile.in: Rebuild. * dw2gencfi.h: Include dwarf2.h, not elf/dwarf2.h. * dwarf2dbg.c: Likewise. * ehopt.c: Likewise. gdb * dwarf2-frame.c: Include dwarf2.h, not elf/dwarf2.h. * dwarf2expr.c: Likewise. * dwarf2loc.c: Likewise. * dwarf2read.c: Likewise. * sh-tdep.c: Likewise. * xtensa-tdep.c: Likewise. include * dwarf2.h: New file, moved from elf/. include/elf * dwarf2.h: Move to `..'.
2009-07-10 15:27:04 +00:00
#include "dwarf2.h"
#include "dwarf2expr.h"
#include "dwarf2loc.h"
#include "dwarf2-frame.h"
the "compile" command This final patch adds the new "compile" command and subcommands, and all the machinery needed to make it work. A shared library supplied by gcc is used for all communications with gcc. Types and most aspects of symbols are provided directly by gdb to the compiler using this library. gdb provides some information about the user's code using plain text. Macros are emitted this way, and DWARF location expressions (and bounds for VLA) are compiled to C code. This hybrid approach was taken because, on the one hand, it is better to provide global declarations and such on demand; but on the other hand, for local variables, translating DWARF location expressions to C was much simpler than exporting a full compiler API to gdb -- the same result, only easier to implement, understand, and debug. In the ordinary mode, the user's expression is wrapped in a dummy function. After compilation, gdb inserts the resulting object code into the inferior, then calls this function. Access to local variables is provided by noting which registers are used by location expressions, and passing a structure of register values into the function. Writes to registers are supported by copying out these values after the function returns. This approach was taken so that we could eventually implement other more interesting features based on this same infrastructure; for example, we're planning to investigate inferior-side breakpoint conditions. gdb/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Update. * symtab.h (struct symbol_computed_ops) <generate_c_location>: New field. * p-lang.c (pascal_language_defn): Update. * opencl-lang.c (opencl_language_defn): Update. * objc-lang.c (objc_language_defn): Update. * m2-lang.c (m2_language_defn): Update. * language.h (struct language_defn) <la_get_compile_instance, la_compute_program>: New fields. * language.c (unknown_language_defn, auto_language_defn) (local_language_defn): Update. * jv-lang.c (java_language_defn): Update. * go-lang.c (go_language_defn): Update. * f-lang.c (f_language_defn): Update. * dwarf2loc.h (dwarf2_compile_property_to_c): Declare. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): New functions. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Update. * defs.h (enum compile_i_scope_types): New. (enum command_control_type) <compile_control>: New constant. (struct command_line) <control_u>: New field. * d-lang.c (d_language_defn): Update. * compile/compile.c: New file. * compile/compile-c-support.c: New file. * compile/compile-c-symbols.c: New file. * compile/compile-c-types.c: New file. * compile/compile.h: New file. * compile/compile-internal.h: New file. * compile/compile-loc2c.c: New file. * compile/compile-object-load.c: New file. * compile/compile-object-load.h: New file. * compile/compile-object-run.c: New file. * compile/compile-object-run.h: New file. * cli/cli-script.c (multi_line_command_p, print_command_lines) (execute_control_command, process_next_line) (recurse_read_control_structure): Handle compile_control. * c-lang.h (c_get_compile_context, c_compute_program): Declare. * c-lang.c (c_language_defn, cplus_language_defn) (asm_language_defn, minimal_language_defn): Update. * ada-lang.c (ada_language_defn): Update. * Makefile.in (SUBDIR_GCC_COMPILE_OBS, SUBDIR_GCC_COMPILE_SRCS): New variables. (SFILES): Add SUBDIR_GCC_COMPILE_SRCS. (HFILES_NO_SRCDIR): Add compile.h. (COMMON_OBS): Add SUBDIR_GCC_COMPILE_OBS. (INIT_FILES): Add SUBDIR_GCC_COMPILE_SRCS. (compile.o, compile-c-types.o, compile-c-symbols.o) (compile-object-load.o, compile-object-run.o, compile-loc2c.o) (compile-c-support.o): New targets. gdb/doc/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.texinfo (Altering): Update. (Compiling and Injecting Code): New node. gdb/testsuite/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * configure.ac: Add gdb.compile/. * configure: Regenerate. * gdb.compile/Makefile.in: New file. * gdb.compile/compile-ops.exp: New file. * gdb.compile/compile-ops.c: New file. * gdb.compile/compile-tls.c: New file. * gdb.compile/compile-tls.exp: New file. * gdb.compile/compile-constvar.S: New file. * gdb.compile/compile-constvar.c: New file. * gdb.compile/compile-mod.c: New file. * gdb.compile/compile-nodebug.c: New file. * gdb.compile/compile-setjmp-mod.c: New file. * gdb.compile/compile-setjmp.c: New file. * gdb.compile/compile-setjmp.exp: New file. * gdb.compile/compile-shlib.c: New file. * gdb.compile/compile.c: New file. * gdb.compile/compile.exp: New file. * lib/gdb.exp (skip_compile_feature_tests): New proc.
2014-05-14 20:35:45 +00:00
#include "compile/compile.h"
extern int dwarf2_always_disassemble;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
static const struct dwarf_expr_context_funcs dwarf_expr_ctx_funcs;
static struct value *dwarf2_evaluate_loc_desc_full (struct type *type,
struct frame_info *frame,
const gdb_byte *data,
size_t size,
struct dwarf2_per_cu_data *per_cu,
LONGEST byte_offset);
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
/* Until these have formal names, we define these here.
ref: http://gcc.gnu.org/wiki/DebugFission
Each entry in .debug_loc.dwo begins with a byte that describes the entry,
and is then followed by data specific to that entry. */
enum debug_loc_kind
{
/* Indicates the end of the list of entries. */
DEBUG_LOC_END_OF_LIST = 0,
/* This is followed by an unsigned LEB128 number that is an index into
.debug_addr and specifies the base address for all following entries. */
DEBUG_LOC_BASE_ADDRESS = 1,
/* This is followed by two unsigned LEB128 numbers that are indices into
.debug_addr and specify the beginning and ending addresses, and then
a normal location expression as in .debug_loc. */
DEBUG_LOC_START_END = 2,
/* This is followed by an unsigned LEB128 number that is an index into
.debug_addr and specifies the beginning address, and a 4 byte unsigned
number that specifies the length, and then a normal location expression
as in .debug_loc. */
DEBUG_LOC_START_LENGTH = 3,
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
/* An internal value indicating there is insufficient data. */
DEBUG_LOC_BUFFER_OVERFLOW = -1,
/* An internal value indicating an invalid kind of entry was found. */
DEBUG_LOC_INVALID_ENTRY = -2
};
/* Helper function which throws an error if a synthetic pointer is
invalid. */
static void
invalid_synthetic_pointer (void)
{
error (_("access outside bounds of object "
"referenced via synthetic pointer"));
}
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
/* Decode the addresses in a non-dwo .debug_loc entry.
A pointer to the next byte to examine is returned in *NEW_PTR.
The encoded low,high addresses are return in *LOW,*HIGH.
The result indicates the kind of entry found. */
static enum debug_loc_kind
decode_debug_loc_addresses (const gdb_byte *loc_ptr, const gdb_byte *buf_end,
const gdb_byte **new_ptr,
CORE_ADDR *low, CORE_ADDR *high,
enum bfd_endian byte_order,
unsigned int addr_size,
int signed_addr_p)
{
CORE_ADDR base_mask = ~(~(CORE_ADDR)1 << (addr_size * 8 - 1));
if (buf_end - loc_ptr < 2 * addr_size)
return DEBUG_LOC_BUFFER_OVERFLOW;
if (signed_addr_p)
*low = extract_signed_integer (loc_ptr, addr_size, byte_order);
else
*low = extract_unsigned_integer (loc_ptr, addr_size, byte_order);
loc_ptr += addr_size;
if (signed_addr_p)
*high = extract_signed_integer (loc_ptr, addr_size, byte_order);
else
*high = extract_unsigned_integer (loc_ptr, addr_size, byte_order);
loc_ptr += addr_size;
*new_ptr = loc_ptr;
/* A base-address-selection entry. */
if ((*low & base_mask) == base_mask)
return DEBUG_LOC_BASE_ADDRESS;
/* An end-of-list entry. */
if (*low == 0 && *high == 0)
return DEBUG_LOC_END_OF_LIST;
return DEBUG_LOC_START_END;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
}
/* Decode the addresses in .debug_loc.dwo entry.
A pointer to the next byte to examine is returned in *NEW_PTR.
The encoded low,high addresses are return in *LOW,*HIGH.
The result indicates the kind of entry found. */
static enum debug_loc_kind
decode_debug_loc_dwo_addresses (struct dwarf2_per_cu_data *per_cu,
const gdb_byte *loc_ptr,
const gdb_byte *buf_end,
const gdb_byte **new_ptr,
CORE_ADDR *low, CORE_ADDR *high,
enum bfd_endian byte_order)
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
{
uint64_t low_index, high_index;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
if (loc_ptr == buf_end)
return DEBUG_LOC_BUFFER_OVERFLOW;
switch (*loc_ptr++)
{
case DEBUG_LOC_END_OF_LIST:
*new_ptr = loc_ptr;
return DEBUG_LOC_END_OF_LIST;
case DEBUG_LOC_BASE_ADDRESS:
*low = 0;
loc_ptr = gdb_read_uleb128 (loc_ptr, buf_end, &high_index);
if (loc_ptr == NULL)
return DEBUG_LOC_BUFFER_OVERFLOW;
*high = dwarf2_read_addr_index (per_cu, high_index);
*new_ptr = loc_ptr;
return DEBUG_LOC_BASE_ADDRESS;
case DEBUG_LOC_START_END:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
loc_ptr = gdb_read_uleb128 (loc_ptr, buf_end, &low_index);
if (loc_ptr == NULL)
return DEBUG_LOC_BUFFER_OVERFLOW;
*low = dwarf2_read_addr_index (per_cu, low_index);
loc_ptr = gdb_read_uleb128 (loc_ptr, buf_end, &high_index);
if (loc_ptr == NULL)
return DEBUG_LOC_BUFFER_OVERFLOW;
*high = dwarf2_read_addr_index (per_cu, high_index);
*new_ptr = loc_ptr;
return DEBUG_LOC_START_END;
case DEBUG_LOC_START_LENGTH:
loc_ptr = gdb_read_uleb128 (loc_ptr, buf_end, &low_index);
if (loc_ptr == NULL)
return DEBUG_LOC_BUFFER_OVERFLOW;
*low = dwarf2_read_addr_index (per_cu, low_index);
if (loc_ptr + 4 > buf_end)
return DEBUG_LOC_BUFFER_OVERFLOW;
*high = *low;
*high += extract_unsigned_integer (loc_ptr, 4, byte_order);
*new_ptr = loc_ptr + 4;
return DEBUG_LOC_START_LENGTH;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
default:
return DEBUG_LOC_INVALID_ENTRY;
}
}
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
/* A function for dealing with location lists. Given a
symbol baton (BATON) and a pc value (PC), find the appropriate
location expression, set *LOCEXPR_LENGTH, and return a pointer
to the beginning of the expression. Returns NULL on failure.
For now, only return the first matching location expression; there
can be more than one in the list. */
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
const gdb_byte *
dwarf2_find_location_expression (struct dwarf2_loclist_baton *baton,
size_t *locexpr_length, CORE_ADDR pc)
{
2008-03-18 Ulrich Weigand <uweigand@de.ibm.com> Jim Blandy <jimb@codesourcery.com> Daniel Jacobowitz <drow@false.org> * dwarf2expr.h (struct dwarf_expr_context): Add ADDR_SIZE member. (dwarf2_read_address): Update prototype. * dwarf2expr.c (unsigned_address_type): Add ADDR_SIZE parameter. (signed_address_type): Likewise. (dwarf2_read_address): Replace BYTES_READ parameter with ADDR_SIZE. (execute_stack_op): Update calls to unsigned_address_type, signed_address_type and dwarf2_read_address. Fix implementation of DW_OP_deref_size. * dwarf2loc.h (dwarf2_per_cu_objfile): Add prototype. (dwarf2_per_cu_addr_size): Likewise. (struct dwarf2_locexpr_baton): Replace OBJFILE with PER_CU. (struct dwarf2_loclist_baton): Likewise. * dwarf2loc.c (find_location_expression): Update calls to dwarf2_read_address. Use dwarf2_per_cu_objfile and dwarf2_per_cu_addr_size to retrieve PER_CU parameters. (locexpr_describe_location): Likewise. (dwarf2_evaluate_loc_desc): Replace OBJFILE with PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (dwarf2_loc_desc_needs_frame): Add PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (locexpr_read_variable): Update dwarf2_evaluate_loc_desc call. (loclist_read_variable): Likewise. (locexpr_read_needs_frame): Update dwarf2_loc_desc_needs_frame call. * dwarf2read.c (dwarf2_symbol_mark_computed): Set baton->per_cu instead of baton->objfile. (dwarf2_per_cu_obfile): New function. (dwarf2_per_cu_addr_size): Likewise. * dwarf2-frame.c (struct comp_unit): Move higher. (struct dwarf2_cie): Add UNIT and ADDR_SIZE members. (execute_stack_op): Add ADDR_SIZE parameter; set ctx->addr_size. (execute_cfa_program): Add FDE parameter. Replace EH_FRAME_P parameter by using fde->eh_frame_p. Use read_encoded_value to implement DW_CFA_set_loc. (struct dwarf2_frame_cache): Add ADDR_SIZE member. (dwarf2_frame_cache): Set cache->addr_size. Update calls to execute_stack_op and execute_cfa_program. (dwarf2_frame_prev_register): Update calls to execute_stack_op. (size_of_encoded_value): Remove. (read_encoded_value): Add PTR_LEN and FUNC_BASE parameters. Remove call to size_of_encoded_value. Implement DW_EH_PE_funcrel. (add_cie): Set cie->unit backlink. (decode_frame_entry_1): Set cie->addr_size. Update calls to read_encoded_value. (dwarf2_build_frame_info): Allocate UNIT on objfile obstack.
2008-03-18 19:40:47 +00:00
struct objfile *objfile = dwarf2_per_cu_objfile (baton->per_cu);
struct gdbarch *gdbarch = get_objfile_arch (objfile);
* defs.h (extract_signed_integer, extract_unsigned_integer, extract_long_unsigned_integer, store_signed_integer, store_unsigned_integer): Add BYTE_ORDER parameter. * findvar.c (extract_signed_integer, extract_unsigned_integer, extract_long_unsigned_integer, store_signed_integer, store_unsigned_integer): Add BYTE_ORDER parameter. Use it instead of current_gdbarch. * gdbcore.h (read_memory_integer, safe_read_memory_integer, read_memory_unsigned_integer, write_memory_signed_integer, write_memory_unsigned_integer): Add BYTE_ORDER parameter. * corefile.c (struct captured_read_memory_integer_arguments): Add BYTE_ORDER member. (safe_read_memory_integer): Add BYTE_ORDER parameter. Store it into struct captured_read_memory_integer_arguments. (do_captured_read_memory_integer): Pass it to read_memory_integer. (read_memory_integer): Add BYTE_ORDER parameter. Pass it to extract_signed_integer. (read_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it to extract_unsigned_integer. (write_memory_signed_integer): Add BYTE_ORDER parameter. Pass it to store_signed_integer. (write_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it to store_unsigned_integer. * target.h (get_target_memory_unsigned): Add BYTE_ORDER parameter. * target.c (get_target_memory_unsigned): Add BYTE_ORDER parameter. Pass it to extract_unsigned_integer. Update calls to extract_signed_integer, extract_unsigned_integer, extract_long_unsigned_integer, store_signed_integer, store_unsigned_integer, read_memory_integer, read_memory_unsigned_integer, safe_read_memory_integer, write_memory_signed_integer, write_memory_unsigned_integer, and get_target_memory_unsigned to pass byte order: * ada-lang.c (ada_value_binop): Update. * ada-valprint.c (char_at): Update. * alpha-osf1-tdep.c (alpha_osf1_sigcontext_addr): Update. * alpha-tdep.c (alpha_lds, alpha_sts, alpha_push_dummy_call, alpha_extract_return_value, alpha_read_insn, alpha_get_longjmp_target): Update. * amd64-linux-tdep.c (amd64_linux_sigcontext_addr): Update. * amd64obsd-tdep.c (amd64obsd_supply_uthread, amd64obsd_collect_uthread, amd64obsd_trapframe_cache): Update. * amd64-tdep.c (amd64_push_dummy_call, amd64_analyze_prologue, amd64_frame_cache, amd64_sigtramp_frame_cache, fixup_riprel, amd64_displaced_step_fixup): Update. * arm-linux-tdep.c (arm_linux_sigreturn_init, arm_linux_rt_sigreturn_init, arm_linux_supply_gregset): Update. * arm-tdep.c (thumb_analyze_prologue, arm_skip_prologue, arm_scan_prologue, arm_push_dummy_call, thumb_get_next_pc, arm_get_next_pc, arm_extract_return_value, arm_store_return_value, arm_return_value): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. * auxv.c (default_auxv_parse): Update. * avr-tdep.c (avr_address_to_pointer, avr_pointer_to_address, avr_scan_prologue, avr_extract_return_value, avr_frame_prev_register, avr_push_dummy_call): Update. * bsd-uthread.c (bsd_uthread_check_magic, bsd_uthread_lookup_offset, bsd_uthread_wait, bsd_uthread_thread_alive, bsd_uthread_extra_thread_info): Update. * c-lang.c (c_printstr, print_wchar): Update. * cp-valprint.c (cp_print_class_member): Update. * cris-tdep.c (cris_sigcontext_addr, cris_sigtramp_frame_unwind_cache, cris_push_dummy_call, cris_scan_prologue, cris_store_return_value, cris_extract_return_value, find_step_target, dip_prefix, sixteen_bit_offset_branch_op, none_reg_mode_jump_op, move_mem_to_reg_movem_op, get_data_from_address): Update. * dwarf2expr.c (dwarf2_read_address, execute_stack_op): Update. * dwarf2-frame.c (execute_cfa_program): Update. * dwarf2loc.c (find_location_expression): Update. * dwarf2read.c (dwarf2_const_value): Update. * expprint.c (print_subexp_standard): Update. * findvar.c (unsigned_pointer_to_address, signed_pointer_to_address, unsigned_address_to_pointer, address_to_signed_pointer, read_var_value): Update. * frame.c (frame_unwind_register_signed, frame_unwind_register_unsigned, get_frame_memory_signed, get_frame_memory_unsigned): Update. * frame-unwind.c (frame_unwind_got_constant): Update. * frv-linux-tdep.c (frv_linux_pc_in_sigtramp, frv_linux_sigcontext_reg_addr, frv_linux_sigtramp_frame_cache): Update. * frv-tdep.c (frv_analyze_prologue, frv_skip_main_prologue, frv_extract_return_value, find_func_descr, frv_convert_from_func_ptr_addr, frv_push_dummy_call): Update. * f-valprint.c (f_val_print): Update. * gnu-v3-abi.c (gnuv3_decode_method_ptr, gnuv3_make_method_ptr): Update. * h8300-tdep.c (h8300_is_argument_spill, h8300_analyze_prologue, h8300_push_dummy_call, h8300_extract_return_value, h8300h_extract_return_value, h8300_store_return_value, h8300h_store_return_value): Update. * hppabsd-tdep.c (hppabsd_find_global_pointer): Update. * hppa-hpux-nat.c (hppa_hpux_fetch_register, hppa_hpux_store_register): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline, hppa64_hpux_in_solib_call_trampoline, hppa_hpux_in_solib_return_trampoline, hppa_hpux_skip_trampoline_code, hppa_hpux_sigtramp_frame_unwind_cache, hppa_hpux_sigtramp_unwind_sniffer, hppa32_hpux_find_global_pointer, hppa64_hpux_find_global_pointer, hppa_hpux_search_pattern, hppa32_hpux_search_dummy_call_sequence, hppa64_hpux_search_dummy_call_sequence, hppa_hpux_supply_save_state, hppa_hpux_unwind_adjust_stub): Update. * hppa-linux-tdep.c (insns_match_pattern, hppa_linux_find_global_pointer): Update. * hppa-tdep.c (hppa_in_function_epilogue_p, hppa32_push_dummy_call, hppa64_convert_code_addr_to_fptr, hppa64_push_dummy_call, skip_prologue_hard_way, hppa_frame_cache, hppa_fallback_frame_cache, hppa_pseudo_register_read, hppa_frame_prev_register_helper, hppa_match_insns): Update. * hpux-thread.c (hpux_thread_fetch_registers): Update. * i386-tdep.c (i386bsd_sigcontext_addr): Update. * i386-cygwin-tdep.c (core_process_module_section): Update. * i386-darwin-nat.c (i386_darwin_sstep_at_sigreturn, amd64_darwin_sstep_at_sigreturn): Update. * i386-darwin-tdep.c (i386_darwin_sigcontext_addr, amd64_darwin_sigcontext_addr): Likewise. * i386-linux-nat.c (i386_linux_sigcontext_addr): Update. * i386nbsd-tdep.c (i386nbsd_sigtramp_cache_init): Update. * i386-nto-tdep.c (i386nto_sigcontext_addr): Update. * i386obsd-nat.c (i386obsd_supply_pcb): Update. * i386obsd-tdep.c (i386obsd_supply_uthread, i386obsd_collect_uthread, i386obsd_trapframe_cache): Update. * i386-tdep.c (i386_displaced_step_fixup, i386_follow_jump, i386_analyze_frame_setup, i386_analyze_prologue, i386_skip_main_prologue, i386_frame_cache, i386_sigtramp_frame_cache, i386_get_longjmp_target, i386_push_dummy_call, i386_pe_skip_trampoline_code, i386_svr4_sigcontext_addr, i386_fetch_pointer_argument): Update. * i387-tdep.c (i387_supply_fsave): Update. * ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Update. * ia64-tdep.c (ia64_pseudo_register_read, ia64_pseudo_register_write, examine_prologue, ia64_frame_cache, ia64_frame_prev_register, ia64_sigtramp_frame_cache, ia64_sigtramp_frame_prev_register, ia64_access_reg, ia64_access_rse_reg, ia64_libunwind_frame_this_id, ia64_libunwind_frame_prev_register, ia64_libunwind_sigtramp_frame_this_id, ia64_libunwind_sigtramp_frame_prev_register, ia64_find_global_pointer, find_extant_func_descr, find_func_descr, ia64_convert_from_func_ptr_addr, ia64_push_dummy_call, ia64_dummy_id, ia64_unwind_pc): Update. * iq2000-tdep.c (iq2000_pointer_to_address, iq2000_address_to_pointer, iq2000_scan_prologue, iq2000_extract_return_value, iq2000_push_dummy_call): Update. * irix5nat.c (fill_gregset): Update. * jv-lang.c (evaluate_subexp_java): Update. * jv-valprint.c (java_value_print): Update. * lm32-tdep.c (lm32_analyze_prologue, lm32_push_dummy_call, lm32_extract_return_value, lm32_store_return_value): Update. * m32c-tdep.c (m32c_push_dummy_call, m32c_return_value, m32c_skip_trampoline_code, m32c_m16c_address_to_pointer, m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_store_return_value, decode_prologue, m32r_skip_prologue, m32r_push_dummy_call, m32r_extract_return_value): Update. * m68hc11-tdep.c (m68hc11_pseudo_register_read, m68hc11_pseudo_register_write, m68hc11_analyze_instruction, m68hc11_push_dummy_call): Update. * m68linux-tdep.c (m68k_linux_pc_in_sigtramp, m68k_linux_get_sigtramp_info, m68k_linux_sigtramp_frame_cache): Update. * m68k-tdep.c (m68k_push_dummy_call, m68k_analyze_frame_setup, m68k_analyze_register_saves, m68k_analyze_prologue, m68k_frame_cache, m68k_get_longjmp_target): Update. * m88k-tdep.c (m88k_fetch_instruction): Update. * mep-tdep.c (mep_pseudo_cr32_read, mep_pseudo_csr_write, mep_pseudo_cr32_write, mep_get_insn, mep_push_dummy_call): Update. * mi/mi-main.c (mi_cmd_data_write_memory): Update. * mips-linux-tdep.c (mips_linux_get_longjmp_target, supply_32bit_reg, mips64_linux_get_longjmp_target, mips64_fill_gregset, mips64_fill_fpregset, mips_linux_in_dynsym_stub): Update. * mipsnbdsd-tdep.c (mipsnbsd_get_longjmp_target): Update. * mips-tdep.c (mips_fetch_instruction, fetch_mips_16, mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call, mips_o32_push_dummy_call, mips_o64_push_dummy_call, mips_single_step_through_delay, mips_skip_pic_trampoline_code, mips_integer_to_address): Update. * mn10300-tdep.c (mn10300_analyze_prologue, mn10300_push_dummy_call): Update. * monitor.c (monitor_supply_register, monitor_write_memory, monitor_read_memory_single): Update. * moxie-tdep.c (moxie_store_return_value, moxie_extract_return_value, moxie_analyze_prologue): Update. * mt-tdep.c (mt_return_value, mt_skip_prologue, mt_select_coprocessor, mt_pseudo_register_read, mt_pseudo_register_write, mt_registers_info, mt_push_dummy_call): Update. * objc-lang.c (read_objc_method, read_objc_methlist_nmethods, read_objc_methlist_method, read_objc_object, read_objc_super, read_objc_class, find_implementation_from_class): Update. * ppc64-linux-tdep.c (ppc64_desc_entry_point, ppc64_linux_convert_from_func_ptr_addr, ppc_linux_sigtramp_cache): Update. * ppcobsd-tdep.c (ppcobsd_sigtramp_frame_sniffer, ppcobsd_sigtramp_frame_cache): Update. * ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call, do_ppc_sysv_return_value, ppc64_sysv_abi_push_dummy_call, ppc64_sysv_abi_return_value): Update. * ppc-linux-nat.c (ppc_linux_auxv_parse): Update. * procfs.c (procfs_auxv_parse): Update. * p-valprint.c (pascal_val_print): Update. * regcache.c (regcache_raw_read_signed, regcache_raw_read_unsigned, regcache_raw_write_signed, regcache_raw_write_unsigned, regcache_cooked_read_signed, regcache_cooked_read_unsigned, regcache_cooked_write_signed, regcache_cooked_write_unsigned): Update. * remote-m32r-sdi.c (m32r_fetch_register): Update. * remote-mips.c (mips_wait, mips_fetch_registers, mips_xfer_memory): Update. * rs6000-aix-tdep.c (rs6000_push_dummy_call, rs6000_return_value, rs6000_convert_from_func_ptr_addr, branch_dest, rs6000_software_single_step): Update. * rs6000-tdep.c (rs6000_in_function_epilogue_p, ppc_displaced_step_fixup, ppc_deal_with_atomic_sequence, bl_to_blrl_insn_p, rs6000_fetch_instruction, skip_prologue, rs6000_skip_main_prologue, rs6000_skip_trampoline_code, rs6000_frame_cache): Update. * s390-tdep.c (s390_pseudo_register_read, s390_pseudo_register_write, s390x_pseudo_register_read, s390x_pseudo_register_write, s390_load, s390_backchain_frame_unwind_cache, s390_sigtramp_frame_unwind_cache, extend_simple_arg, s390_push_dummy_call, s390_return_value): Update. * scm-exp.c (scm_lreadr): Update. * scm-lang.c (scm_get_field, scm_unpack): Update. * scm-valprint.c (scm_val_print): Update. * score-tdep.c (score_breakpoint_from_pc, score_push_dummy_call, score_fetch_inst): Update. * sh64-tdep.c (look_for_args_moves, sh64_skip_prologue_hard_way, sh64_analyze_prologue, sh64_push_dummy_call, sh64_extract_return_value, sh64_pseudo_register_read, sh64_pseudo_register_write, sh64_frame_prev_register): Update: * sh-tdep.c (sh_analyze_prologue, sh_push_dummy_call_fpu, sh_push_dummy_call_nofpu, sh_extract_return_value_nofpu, sh_store_return_value_nofpu, sh_in_function_epilogue_p): Update. * solib-darwin.c (darwin_load_image_infos): Update. * solib-frv.c (fetch_loadmap, lm_base, frv_current_sos, enable_break2, find_canonical_descriptor_in_load_object): Update. * solib-irix.c (extract_mips_address, fetch_lm_info, irix_current_sos, irix_open_symbol_file_object): Update. * solib-som.c (som_solib_create_inferior_hook, link_map_start, som_current_sos, som_open_symbol_file_object): Update. * solib-sunos.c (SOLIB_EXTRACT_ADDRESS, LM_ADDR, LM_NEXT, LM_NAME): Update. * solib-svr4.c (read_program_header, scan_dyntag_auxv, solib_svr4_r_ldsomap): Update. * sparc64-linux-tdep.c (sparc64_linux_step_trap): Update. * sparc64obsd-tdep.c (sparc64obsd_supply_uthread, sparc64obsd_collect_uthread): Update. * sparc64-tdep.c (sparc64_pseudo_register_read, sparc64_pseudo_register_write, sparc64_supply_gregset, sparc64_collect_gregset): Update. * sparc-linux-tdep.c (sparc32_linux_step_trap): Update. * sparcobsd-tdep.c (sparc32obsd_supply_uthread, sparc32obsd_collect_uthread): Update. * sparc-tdep.c (sparc_fetch_wcookie, sparc32_push_dummy_code, sparc32_store_arguments, sparc32_return_value, sparc_supply_rwindow, sparc_collect_rwindow): Update. * spu-linux-nat.c (parse_spufs_run): Update. * spu-tdep.c (spu_pseudo_register_read_spu, spu_pseudo_register_write_spu, spu_pointer_to_address, spu_analyze_prologue, spu_in_function_epilogue_p, spu_frame_unwind_cache, spu_push_dummy_call, spu_software_single_step, spu_get_longjmp_target, spu_get_overlay_table, spu_overlay_update_osect, info_spu_signal_command, info_spu_mailbox_list, info_spu_dma_cmdlist, info_spu_dma_command, info_spu_proxydma_command): Update. * stack.c (print_frame_nameless_args, frame_info): Update. * symfile.c (read_target_long_array, simple_read_overlay_table, simple_read_overlay_region_table): Update. * target.c (debug_print_register): Update. * tramp-frame.c (tramp_frame_start): Update. * v850-tdep.c (v850_analyze_prologue, v850_push_dummy_call, v850_extract_return_value, v850_store_return_value, * valarith.c (value_binop, value_bit_index): Update. * valops.c (value_cast): Update. * valprint.c (val_print_type_code_int, val_print_string, read_string): Update. * value.c (unpack_long, unpack_double, unpack_field_as_long, modify_field, pack_long): Update. * vax-tdep.c (vax_store_arguments, vax_push_dummy_call, vax_skip_prologue): Update. * xstormy16-tdep.c (xstormy16_push_dummy_call, xstormy16_analyze_prologue, xstormy16_in_function_epilogue_p, xstormy16_resolve_jmp_table_entry, xstormy16_find_jmp_table_entry, xstormy16_pointer_to_address, xstormy16_address_to_pointer): Update. * xtensa-tdep.c (extract_call_winsize, xtensa_pseudo_register_read, xtensa_pseudo_register_write, xtensa_frame_cache, xtensa_push_dummy_call, call0_track_op, call0_frame_cache): Update. * dfp.h (decimal_to_string, decimal_from_string, decimal_from_integral, decimal_from_floating, decimal_to_doublest, decimal_is_zero): Add BYTE_ORDER parameter. (decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT parameters. (decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters. (decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters. * dfp.c (match_endianness): Add BYTE_ORDER parameter. Use it instead of current_gdbarch. (decimal_to_string, decimal_from_integral, decimal_from_floating, decimal_to_doublest, decimal_is_zero): Add BYTE_ORDER parameter. Pass it to match_endianness. (decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT parameters. Pass them to match_endianness. (decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters. Pass them to match_endianness. (decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters. Pass them to match_endianness. * valarith.c (value_args_as_decimal): Add BYTE_ORDER_X and BYTE_ORDER_Y output parameters. (value_binop): Update call to value_args_as_decimal. Update calls to decimal_to_string, decimal_from_string, decimal_from_integral, decimal_from_floating, decimal_to_doublest, decimal_is_zero, decimal_binop, decimal_compare and decimal_convert to pass/receive byte order: * c-exp.y (parse_number): Update. * printcmd.c (printf_command): Update. * valarith.c (value_args_as_decimal, value_binop, value_logical_not, value_equal, value_less): Update. * valops.c (value_cast, value_one): Update. * valprint.c (print_decimal_floating): Update. * value.c (unpack_long, unpack_double): Update. * python/python-value.c (valpy_nonzero): Update. * ada-valprint.c (char_at): Add BYTE_ORDER parameter. (printstr): Update calls to char_at. (ada_val_print_array): Likewise. * valprint.c (read_string): Add BYTE_ORDER parameter. (val_print_string): Update call to read_string. * c-lang.c (c_get_string): Likewise. * charset.h (target_wide_charset): Add BYTE_ORDER parameter. * charset.c (target_wide_charset): Add BYTE_ORDER parameter. Use it instead of current_gdbarch. * printcmd.c (printf_command): Update calls to target_wide_charset. * c-lang.c (charset_for_string_type): Add BYTE_ORDER parameter. Pass to target_wide_charset. Use it instead of current_gdbarch. (classify_type): Add BYTE_ORDER parameter. Pass to charset_for_string_type. Allow NULL encoding pointer. (print_wchar): Add BYTE_ORDER parameter. (c_emit_char): Update calls to classify_type and print_wchar. (c_printchar, c_printstr): Likewise. * gdbarch.sh (in_solib_return_trampoline): Convert to type "m". * gdbarch.c, gdbarch.h: Regenerate. * arch-utils.h (generic_in_solib_return_trampoline): Add GDBARCH parameter. * arch-utils.c (generic_in_solib_return_trampoline): Likewise. * hppa-hpux-tdep.c (hppa_hpux_in_solib_return_trampoline): Likewise. * rs6000-tdep.c (rs6000_in_solib_return_trampoline): Likewise. (rs6000_skip_trampoline_code): Update call. * alpha-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to dynamic_sigtramp_offset and pc_in_sigtramp callbacks. (alpha_read_insn): Add GDBARCH parameter. * alpha-tdep.c (alpha_lds, alpha_sts): Add GDBARCH parameter. (alpha_register_to_value): Pass architecture to alpha_sts. (alpha_extract_return_value): Likewise. (alpha_value_to_register): Pass architecture to alpha_lds. (alpha_store_return_value): Likewise. (alpha_read_insn): Add GDBARCH parameter. (alpha_skip_prologue): Pass architecture to alpha_read_insn. (alpha_heuristic_proc_start): Likewise. (alpha_heuristic_frame_unwind_cache): Likewise. (alpha_next_pc): Likewise. (alpha_sigtramp_frame_this_id): Pass architecture to tdep->dynamic_sigtramp_offset callback. (alpha_sigtramp_frame_sniffer): Pass architecture to tdep->pc_in_sigtramp callback. * alphafbsd-tdep.c (alphafbsd_pc_in_sigtramp): Add GDBARCH parameter. (alphafbsd_sigtramp_offset): Likewise. * alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): Add GDBARCH parameter. Pass to alpha_read_insn. (alpha_linux_sigtramp_offset): Add GDBARCH parameter. Pass to alpha_linux_sigtramp_offset_1. (alpha_linux_pc_in_sigtramp): Add GDBARCH parameter. Pass to alpha_linux_sigtramp_offset. (alpha_linux_sigcontext_addr): Pass architecture to alpha_read_insn and alpha_linux_sigtramp_offset. * alphanbsd-tdep.c (alphanbsd_sigtramp_offset): Add GDBARCH parameter. (alphanbsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to alphanbsd_sigtramp_offset. * alphaobsd-tdep.c (alphaobsd_sigtramp_offset): Add GDBARCH parameter. (alphaobsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to alpha_read_insn. (alphaobsd_sigcontext_addr): Pass architecture to alphaobsd_sigtramp_offset. * alpha-osf1-tdep.c (alpha_osf1_pc_in_sigtramp): Add GDBARCH parameter. * amd64-tdep.c (amd64_analyze_prologue): Add GDBARCH parameter. (amd64_skip_prologue): Pass architecture to amd64_analyze_prologue. (amd64_frame_cache): Likewise. * arm-tdep.c (SWAP_SHORT, SWAP_INT): Remove. (thumb_analyze_prologue, arm_skip_prologue, arm_scan_prologue, thumb_get_next_pc, arm_get_next_pc): Do not use SWAP_ macros. * arm-wince-tdep.c: Include "frame.h". * avr-tdep.c (EXTRACT_INSN): Remove. (avr_scan_prologue): Add GDBARCH argument, inline EXTRACT_INSN. (avr_skip_prologue): Pass architecture to avr_scan_prologue. (avr_frame_unwind_cache): Likewise. * cris-tdep.c (struct instruction_environment): Add BYTE_ORDER member. (find_step_target): Initialize it. (get_data_from_address): Add BYTE_ORDER parameter. (bdap_prefix): Pass byte order to get_data_from_address. (handle_prefix_assign_mode_for_aritm_op): Likewise. (three_operand_add_sub_cmp_and_or_op): Likewise. (handle_inc_and_index_mode_for_aritm_op): Likewise. * frv-linux-tdep.c (frv_linux_pc_in_sigtramp): Add GDBARCH parameter. (frv_linux_sigcontext_reg_addr): Pass architecture to frv_linux_pc_in_sigtramp. (frv_linux_sigtramp_frame_sniffer): Likewise. * h8300-tdep.c (h8300_is_argument_spill): Add GDBARCH parameter. (h8300_analyze_prologue): Add GDBARCH parameter. Pass to h8300_is_argument_spill. (h8300_frame_cache, h8300_skip_prologue): Pass architecture to h8300_analyze_prologue. * hppa-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to in_solib_call_trampoline callback. (hppa_in_solib_call_trampoline): Add GDBARCH parameter. * hppa-tdep.c (hppa64_convert_code_addr_to_fptr): Add GDBARCH parameter. (hppa64_push_dummy_call): Pass architecture to hppa64_convert_code_addr_to_fptr. (hppa_match_insns): Add GDBARCH parameter. (hppa_match_insns_relaxed): Add GDBARCH parameter. Pass to hppa_match_insns. (hppa_skip_trampoline_code): Pass architecture to hppa_match_insns. (hppa_in_solib_call_trampoline): Add GDBARCH parameter. Pass to hppa_match_insns_relaxed. (hppa_stub_unwind_sniffer): Pass architecture to tdep->in_solib_call_trampoline callback. * hppa-hpux-tdep.c (hppa_hpux_search_pattern): Add GDBARCH parameter. (hppa32_hpux_search_dummy_call_sequence): Pass architecture to hppa_hpux_search_pattern. * hppa-linux-tdep.c (insns_match_pattern): Add GDBARCH parameter. (hppa_linux_sigtramp_find_sigcontext): Add GDBARCH parameter. Pass to insns_match_pattern. (hppa_linux_sigtramp_frame_unwind_cache): Pass architecture to hppa_linux_sigtramp_find_sigcontext. (hppa_linux_sigtramp_frame_sniffer): Likewise. (hppa32_hpux_in_solib_call_trampoline): Add GDBARCH parameter. (hppa64_hpux_in_solib_call_trampoline): Likewise. * i386-tdep.c (i386_follow_jump): Add GDBARCH parameter. (i386_analyze_frame_setup): Add GDBARCH parameter. (i386_analyze_prologue): Add GDBARCH parameter. Pass to i386_follow_jump and i386_analyze_frame_setup. (i386_skip_prologue): Pass architecture to i386_analyze_prologue and i386_follow_jump. (i386_frame_cache): Pass architecture to i386_analyze_prologue. (i386_pe_skip_trampoline_code): Add FRAME parameter. * i386-tdep.h (i386_pe_skip_trampoline_code): Add FRAME parameter. * i386-cygwin-tdep.c (i386_cygwin_skip_trampoline_code): Pass frame to i386_pe_skip_trampoline_code. * ia64-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to sigcontext_register_address callback. * ia64-tdep.c (ia64_find_global_pointer): Add GDBARCH parameter. (ia64_find_unwind_table): Pass architecture to ia64_find_global_pointer. (find_extant_func_descr): Add GDBARCH parameter. (find_func_descr): Pass architecture to find_extant_func_descr and ia64_find_global_pointer. (ia64_sigtramp_frame_init_saved_regs): Pass architecture to tdep->sigcontext_register_address callback. * ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Add GDBARCH parameter. * iq2000-tdep.c (iq2000_scan_prologue): Add GDBARCH parameter. (iq2000_frame_cache): Pass architecture to iq2000_scan_prologue. * lm32-tdep.c (lm32_analyze_prologue): Add GDBARCH parameter. (lm32_skip_prologue, lm32_frame_cache): Pass architecture to lm32_analyze_prologue. * m32r-tdep.c (decode_prologue): Add GDBARCH parameter. (m32r_skip_prologue): Pass architecture to decode_prologue. * m68hc11-tdep.c (m68hc11_analyze_instruction): Add GDBARCH parameter. (m68hc11_scan_prologue): Pass architecture to m68hc11_analyze_instruction. * m68k-tdep.c (m68k_analyze_frame_setup): Add GDBARCH parameter. (m68k_analyze_prologue): Pass architecture to m68k_analyze_frame_setup. * m88k-tdep.c (m88k_fetch_instruction): Add BYTE_ORDER parameter. (m88k_analyze_prologue): Add GDBARCH parameter. Pass byte order to m88k_fetch_instruction. (m88k_skip_prologue): Pass architecture to m88k_analyze_prologue. (m88k_frame_cache): Likewise. * mep-tdep.c (mep_get_insn): Add GDBARCH parameter. (mep_analyze_prologue): Pass architecture to mep_get_insn. * mips-tdep.c (mips_fetch_instruction): Add GDBARCH parameter. (mips32_next_pc): Pass architecture to mips_fetch_instruction. (deal_with_atomic_sequence): Likewise. (unpack_mips16): Add GDBARCH parameter, pass to mips_fetch_instruction. (mips16_scan_prologue): Likewise. (mips32_scan_prologue): Likewise. (mips16_in_function_epilogue_p): Likewise. (mips32_in_function_epilogue_p): Likewise. (mips_about_to_return): Likewise. (mips_insn16_frame_cache): Pass architecture to mips16_scan_prologue. (mips_insn32_frame_cache): Pass architecture to mips32_scan_prologue. (mips_skip_prologue): Pass architecture to mips16_scan_prologue and mips32_scan_prologue. (mips_in_function_epilogue_p): Pass architecture to mips16_in_function_epilogue_p and mips32_in_function_epilogue_p. (heuristic_proc_start): Pass architecture to mips_fetch_instruction and mips_about_to_return. (mips_skip_mips16_trampoline_code): Pass architecture to mips_fetch_instruction. (fetch_mips_16): Add GDBARCH parameter. (mips16_next_pc): Pass architecture to fetch_mips_16. (extended_mips16_next_pc): Pass architecture to unpack_mips16 and fetch_mips_16. * objc-lang.c (read_objc_method, read_objc_methlist_nmethods, read_objc_methlist_method, read_objc_object, read_objc_super, read_objc_class): Add GDBARCH parameter. (find_implementation_from_class): Add GDBARCH parameter, pass to read_objc_class, read_objc_methlist_nmethods, and read_objc_methlist_method. (find_implementation): Add GDBARCH parameter, pass to read_objc_object and find_implementation_from_class. (resolve_msgsend, resolve_msgsend_stret): Pass architecture to find_implementation. (resolve_msgsend_super, resolve_msgsend_super_stret): Pass architecture to read_objc_super and find_implementation_from_class. * ppc64-linux-tdep.c (ppc64_desc_entry_point): Add GDBARCH parameter. (ppc64_standard_linkage1_target, ppc64_standard_linkage2_target, ppc64_standard_linkage3_target): Pass architecture to ppc64_desc_entry_point. * rs6000-tdep.c (bl_to_blrl_insn_p): Add BYTE_ORDER parameter. (skip_prologue): Pass byte order to bl_to_blrl_insn_p. (rs6000_fetch_instruction): Add GDBARCH parameter. (rs6000_skip_stack_check): Add GDBARCH parameter, pass to rs6000_fetch_instruction. (skip_prologue): Pass architecture to rs6000_fetch_instruction. * remote-mips.c (mips_store_word): Return old_contents as host integer value instead of target bytes. * s390-tdep.c (struct s390_prologue_data): Add BYTE_ORDER member. (s390_analyze_prologue): Initialize it. (extend_simple_arg): Add GDBARCH parameter. (s390_push_dummy_call): Pass architecture to extend_simple_arg. * scm-lang.c (scm_get_field): Add BYTE_ORDER parameter. * scm-lang.h (scm_get_field): Add BYTE_ORDER parameter. (SCM_CAR, SCM_CDR): Pass SCM_BYTE_ORDER to scm_get_field. * scm-valprint.c (scm_scmval_print): Likewise. (scm_scmlist_print, scm_ipruk, scm_scmval_print): Define SCM_BYTE_ORDER. * sh64-tdep.c (look_for_args_moves): Add GDBARCH parameter. (sh64_skip_prologue_hard_way): Add GDBARCH parameter, pass to look_for_args_moves. (sh64_skip_prologue): Pass architecture to sh64_skip_prologue_hard_way. * sh-tdep.c (sh_analyze_prologue): Add GDBARCH parameter. (sh_skip_prologue): Pass architecture to sh_analyze_prologue. (sh_frame_cache): Likewise. * solib-irix.c (extract_mips_address): Add GDBARCH parameter. (fetch_lm_info, irix_current_sos, irix_open_symbol_file_object): Pass architecture to extract_mips_address. * sparc-tdep.h (sparc_fetch_wcookie): Add GDBARCH parameter. * sparc-tdep.c (sparc_fetch_wcookie): Add GDBARCH parameter. (sparc_supply_rwindow, sparc_collect_rwindow): Pass architecture to sparc_fetch_wcookie. (sparc32_frame_prev_register): Likewise. * sparc64-tdep.c (sparc64_frame_prev_register): Likewise. * sparc32nbsd-tdep.c (sparc32nbsd_sigcontext_saved_regs): Likewise. * sparc64nbsd-tdep.c (sparc64nbsd_sigcontext_saved_regs): Likewise. * spu-tdep.c (spu_analyze_prologue): Add GDBARCH parameter. (spu_skip_prologue): Pass architecture to spu_analyze_prologue. (spu_virtual_frame_pointer): Likewise. (spu_frame_unwind_cache): Likewise. (info_spu_mailbox_list): Add BYTE_ORER parameter. (info_spu_mailbox_command): Pass byte order to info_spu_mailbox_list. (info_spu_dma_cmdlist): Add BYTE_ORER parameter. (info_spu_dma_command, info_spu_proxydma_command): Pass byte order to info_spu_dma_cmdlist. * symfile.c (read_target_long_array): Add GDBARCH parameter. (simple_read_overlay_table, simple_read_overlay_region_table, simple_overlay_update_1): Pass architecture to read_target_long_array. * v850-tdep.c (v850_analyze_prologue): Add GDBARCH parameter. (v850_frame_cache): Pass architecture to v850_analyze_prologue. * xstormy16-tdep.c (xstormy16_analyze_prologue): Add GDBARCH parameter. (xstormy16_skip_prologue, xstormy16_frame_cache): Pass architecture to xstormy16_analyze_prologue. (xstormy16_resolve_jmp_table_entry): Add GDBARCH parameter. (xstormy16_find_jmp_table_entry): Likewise. (xstormy16_skip_trampoline_code): Pass architecture to xstormy16_resolve_jmp_table_entry. (xstormy16_pointer_to_address): Likewise. (xstormy16_address_to_pointer): Pass architecture to xstormy16_find_jmp_table_entry. * xtensa-tdep.c (call0_track_op): Add GDBARCH parameter. (call0_analyze_prologue): Add GDBARCH parameter, pass to call0_track_op. (call0_frame_cache): Pass architecture to call0_analyze_prologue. (xtensa_skip_prologue): Likewise.
2009-07-02 17:25:59 +00:00
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
2008-03-18 Ulrich Weigand <uweigand@de.ibm.com> Jim Blandy <jimb@codesourcery.com> Daniel Jacobowitz <drow@false.org> * dwarf2expr.h (struct dwarf_expr_context): Add ADDR_SIZE member. (dwarf2_read_address): Update prototype. * dwarf2expr.c (unsigned_address_type): Add ADDR_SIZE parameter. (signed_address_type): Likewise. (dwarf2_read_address): Replace BYTES_READ parameter with ADDR_SIZE. (execute_stack_op): Update calls to unsigned_address_type, signed_address_type and dwarf2_read_address. Fix implementation of DW_OP_deref_size. * dwarf2loc.h (dwarf2_per_cu_objfile): Add prototype. (dwarf2_per_cu_addr_size): Likewise. (struct dwarf2_locexpr_baton): Replace OBJFILE with PER_CU. (struct dwarf2_loclist_baton): Likewise. * dwarf2loc.c (find_location_expression): Update calls to dwarf2_read_address. Use dwarf2_per_cu_objfile and dwarf2_per_cu_addr_size to retrieve PER_CU parameters. (locexpr_describe_location): Likewise. (dwarf2_evaluate_loc_desc): Replace OBJFILE with PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (dwarf2_loc_desc_needs_frame): Add PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (locexpr_read_variable): Update dwarf2_evaluate_loc_desc call. (loclist_read_variable): Likewise. (locexpr_read_needs_frame): Update dwarf2_loc_desc_needs_frame call. * dwarf2read.c (dwarf2_symbol_mark_computed): Set baton->per_cu instead of baton->objfile. (dwarf2_per_cu_obfile): New function. (dwarf2_per_cu_addr_size): Likewise. * dwarf2-frame.c (struct comp_unit): Move higher. (struct dwarf2_cie): Add UNIT and ADDR_SIZE members. (execute_stack_op): Add ADDR_SIZE parameter; set ctx->addr_size. (execute_cfa_program): Add FDE parameter. Replace EH_FRAME_P parameter by using fde->eh_frame_p. Use read_encoded_value to implement DW_CFA_set_loc. (struct dwarf2_frame_cache): Add ADDR_SIZE member. (dwarf2_frame_cache): Set cache->addr_size. Update calls to execute_stack_op and execute_cfa_program. (dwarf2_frame_prev_register): Update calls to execute_stack_op. (size_of_encoded_value): Remove. (read_encoded_value): Add PTR_LEN and FUNC_BASE parameters. Remove call to size_of_encoded_value. Implement DW_EH_PE_funcrel. (add_cie): Set cie->unit backlink. (decode_frame_entry_1): Set cie->addr_size. Update calls to read_encoded_value. (dwarf2_build_frame_info): Allocate UNIT on objfile obstack.
2008-03-18 19:40:47 +00:00
unsigned int addr_size = dwarf2_per_cu_addr_size (baton->per_cu);
int signed_addr_p = bfd_get_sign_extend_vma (objfile->obfd);
/* Adjust base_address for relocatable objects. */
CORE_ADDR base_offset = dwarf2_per_cu_text_offset (baton->per_cu);
CORE_ADDR base_address = baton->base_address + base_offset;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
const gdb_byte *loc_ptr, *buf_end;
loc_ptr = baton->data;
buf_end = baton->data + baton->size;
while (1)
{
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
CORE_ADDR low = 0, high = 0; /* init for gcc -Wall */
int length;
enum debug_loc_kind kind;
const gdb_byte *new_ptr = NULL; /* init for gcc -Wall */
if (baton->from_dwo)
kind = decode_debug_loc_dwo_addresses (baton->per_cu,
loc_ptr, buf_end, &new_ptr,
&low, &high, byte_order);
else
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
kind = decode_debug_loc_addresses (loc_ptr, buf_end, &new_ptr,
&low, &high,
byte_order, addr_size,
signed_addr_p);
loc_ptr = new_ptr;
switch (kind)
{
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
case DEBUG_LOC_END_OF_LIST:
*locexpr_length = 0;
return NULL;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
case DEBUG_LOC_BASE_ADDRESS:
base_address = high + base_offset;
continue;
case DEBUG_LOC_START_END:
case DEBUG_LOC_START_LENGTH:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
break;
case DEBUG_LOC_BUFFER_OVERFLOW:
case DEBUG_LOC_INVALID_ENTRY:
error (_("dwarf2_find_location_expression: "
"Corrupted DWARF expression."));
default:
gdb_assert_not_reached ("bad debug_loc_kind");
}
/* Otherwise, a location expression entry.
If the entry is from a DWO, don't add base address: the entry is
from .debug_addr which has absolute addresses. */
if (! baton->from_dwo)
{
low += base_address;
high += base_address;
}
* defs.h (extract_signed_integer, extract_unsigned_integer, extract_long_unsigned_integer, store_signed_integer, store_unsigned_integer): Add BYTE_ORDER parameter. * findvar.c (extract_signed_integer, extract_unsigned_integer, extract_long_unsigned_integer, store_signed_integer, store_unsigned_integer): Add BYTE_ORDER parameter. Use it instead of current_gdbarch. * gdbcore.h (read_memory_integer, safe_read_memory_integer, read_memory_unsigned_integer, write_memory_signed_integer, write_memory_unsigned_integer): Add BYTE_ORDER parameter. * corefile.c (struct captured_read_memory_integer_arguments): Add BYTE_ORDER member. (safe_read_memory_integer): Add BYTE_ORDER parameter. Store it into struct captured_read_memory_integer_arguments. (do_captured_read_memory_integer): Pass it to read_memory_integer. (read_memory_integer): Add BYTE_ORDER parameter. Pass it to extract_signed_integer. (read_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it to extract_unsigned_integer. (write_memory_signed_integer): Add BYTE_ORDER parameter. Pass it to store_signed_integer. (write_memory_unsigned_integer): Add BYTE_ORDER parameter. Pass it to store_unsigned_integer. * target.h (get_target_memory_unsigned): Add BYTE_ORDER parameter. * target.c (get_target_memory_unsigned): Add BYTE_ORDER parameter. Pass it to extract_unsigned_integer. Update calls to extract_signed_integer, extract_unsigned_integer, extract_long_unsigned_integer, store_signed_integer, store_unsigned_integer, read_memory_integer, read_memory_unsigned_integer, safe_read_memory_integer, write_memory_signed_integer, write_memory_unsigned_integer, and get_target_memory_unsigned to pass byte order: * ada-lang.c (ada_value_binop): Update. * ada-valprint.c (char_at): Update. * alpha-osf1-tdep.c (alpha_osf1_sigcontext_addr): Update. * alpha-tdep.c (alpha_lds, alpha_sts, alpha_push_dummy_call, alpha_extract_return_value, alpha_read_insn, alpha_get_longjmp_target): Update. * amd64-linux-tdep.c (amd64_linux_sigcontext_addr): Update. * amd64obsd-tdep.c (amd64obsd_supply_uthread, amd64obsd_collect_uthread, amd64obsd_trapframe_cache): Update. * amd64-tdep.c (amd64_push_dummy_call, amd64_analyze_prologue, amd64_frame_cache, amd64_sigtramp_frame_cache, fixup_riprel, amd64_displaced_step_fixup): Update. * arm-linux-tdep.c (arm_linux_sigreturn_init, arm_linux_rt_sigreturn_init, arm_linux_supply_gregset): Update. * arm-tdep.c (thumb_analyze_prologue, arm_skip_prologue, arm_scan_prologue, arm_push_dummy_call, thumb_get_next_pc, arm_get_next_pc, arm_extract_return_value, arm_store_return_value, arm_return_value): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. * auxv.c (default_auxv_parse): Update. * avr-tdep.c (avr_address_to_pointer, avr_pointer_to_address, avr_scan_prologue, avr_extract_return_value, avr_frame_prev_register, avr_push_dummy_call): Update. * bsd-uthread.c (bsd_uthread_check_magic, bsd_uthread_lookup_offset, bsd_uthread_wait, bsd_uthread_thread_alive, bsd_uthread_extra_thread_info): Update. * c-lang.c (c_printstr, print_wchar): Update. * cp-valprint.c (cp_print_class_member): Update. * cris-tdep.c (cris_sigcontext_addr, cris_sigtramp_frame_unwind_cache, cris_push_dummy_call, cris_scan_prologue, cris_store_return_value, cris_extract_return_value, find_step_target, dip_prefix, sixteen_bit_offset_branch_op, none_reg_mode_jump_op, move_mem_to_reg_movem_op, get_data_from_address): Update. * dwarf2expr.c (dwarf2_read_address, execute_stack_op): Update. * dwarf2-frame.c (execute_cfa_program): Update. * dwarf2loc.c (find_location_expression): Update. * dwarf2read.c (dwarf2_const_value): Update. * expprint.c (print_subexp_standard): Update. * findvar.c (unsigned_pointer_to_address, signed_pointer_to_address, unsigned_address_to_pointer, address_to_signed_pointer, read_var_value): Update. * frame.c (frame_unwind_register_signed, frame_unwind_register_unsigned, get_frame_memory_signed, get_frame_memory_unsigned): Update. * frame-unwind.c (frame_unwind_got_constant): Update. * frv-linux-tdep.c (frv_linux_pc_in_sigtramp, frv_linux_sigcontext_reg_addr, frv_linux_sigtramp_frame_cache): Update. * frv-tdep.c (frv_analyze_prologue, frv_skip_main_prologue, frv_extract_return_value, find_func_descr, frv_convert_from_func_ptr_addr, frv_push_dummy_call): Update. * f-valprint.c (f_val_print): Update. * gnu-v3-abi.c (gnuv3_decode_method_ptr, gnuv3_make_method_ptr): Update. * h8300-tdep.c (h8300_is_argument_spill, h8300_analyze_prologue, h8300_push_dummy_call, h8300_extract_return_value, h8300h_extract_return_value, h8300_store_return_value, h8300h_store_return_value): Update. * hppabsd-tdep.c (hppabsd_find_global_pointer): Update. * hppa-hpux-nat.c (hppa_hpux_fetch_register, hppa_hpux_store_register): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline, hppa64_hpux_in_solib_call_trampoline, hppa_hpux_in_solib_return_trampoline, hppa_hpux_skip_trampoline_code, hppa_hpux_sigtramp_frame_unwind_cache, hppa_hpux_sigtramp_unwind_sniffer, hppa32_hpux_find_global_pointer, hppa64_hpux_find_global_pointer, hppa_hpux_search_pattern, hppa32_hpux_search_dummy_call_sequence, hppa64_hpux_search_dummy_call_sequence, hppa_hpux_supply_save_state, hppa_hpux_unwind_adjust_stub): Update. * hppa-linux-tdep.c (insns_match_pattern, hppa_linux_find_global_pointer): Update. * hppa-tdep.c (hppa_in_function_epilogue_p, hppa32_push_dummy_call, hppa64_convert_code_addr_to_fptr, hppa64_push_dummy_call, skip_prologue_hard_way, hppa_frame_cache, hppa_fallback_frame_cache, hppa_pseudo_register_read, hppa_frame_prev_register_helper, hppa_match_insns): Update. * hpux-thread.c (hpux_thread_fetch_registers): Update. * i386-tdep.c (i386bsd_sigcontext_addr): Update. * i386-cygwin-tdep.c (core_process_module_section): Update. * i386-darwin-nat.c (i386_darwin_sstep_at_sigreturn, amd64_darwin_sstep_at_sigreturn): Update. * i386-darwin-tdep.c (i386_darwin_sigcontext_addr, amd64_darwin_sigcontext_addr): Likewise. * i386-linux-nat.c (i386_linux_sigcontext_addr): Update. * i386nbsd-tdep.c (i386nbsd_sigtramp_cache_init): Update. * i386-nto-tdep.c (i386nto_sigcontext_addr): Update. * i386obsd-nat.c (i386obsd_supply_pcb): Update. * i386obsd-tdep.c (i386obsd_supply_uthread, i386obsd_collect_uthread, i386obsd_trapframe_cache): Update. * i386-tdep.c (i386_displaced_step_fixup, i386_follow_jump, i386_analyze_frame_setup, i386_analyze_prologue, i386_skip_main_prologue, i386_frame_cache, i386_sigtramp_frame_cache, i386_get_longjmp_target, i386_push_dummy_call, i386_pe_skip_trampoline_code, i386_svr4_sigcontext_addr, i386_fetch_pointer_argument): Update. * i387-tdep.c (i387_supply_fsave): Update. * ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Update. * ia64-tdep.c (ia64_pseudo_register_read, ia64_pseudo_register_write, examine_prologue, ia64_frame_cache, ia64_frame_prev_register, ia64_sigtramp_frame_cache, ia64_sigtramp_frame_prev_register, ia64_access_reg, ia64_access_rse_reg, ia64_libunwind_frame_this_id, ia64_libunwind_frame_prev_register, ia64_libunwind_sigtramp_frame_this_id, ia64_libunwind_sigtramp_frame_prev_register, ia64_find_global_pointer, find_extant_func_descr, find_func_descr, ia64_convert_from_func_ptr_addr, ia64_push_dummy_call, ia64_dummy_id, ia64_unwind_pc): Update. * iq2000-tdep.c (iq2000_pointer_to_address, iq2000_address_to_pointer, iq2000_scan_prologue, iq2000_extract_return_value, iq2000_push_dummy_call): Update. * irix5nat.c (fill_gregset): Update. * jv-lang.c (evaluate_subexp_java): Update. * jv-valprint.c (java_value_print): Update. * lm32-tdep.c (lm32_analyze_prologue, lm32_push_dummy_call, lm32_extract_return_value, lm32_store_return_value): Update. * m32c-tdep.c (m32c_push_dummy_call, m32c_return_value, m32c_skip_trampoline_code, m32c_m16c_address_to_pointer, m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_store_return_value, decode_prologue, m32r_skip_prologue, m32r_push_dummy_call, m32r_extract_return_value): Update. * m68hc11-tdep.c (m68hc11_pseudo_register_read, m68hc11_pseudo_register_write, m68hc11_analyze_instruction, m68hc11_push_dummy_call): Update. * m68linux-tdep.c (m68k_linux_pc_in_sigtramp, m68k_linux_get_sigtramp_info, m68k_linux_sigtramp_frame_cache): Update. * m68k-tdep.c (m68k_push_dummy_call, m68k_analyze_frame_setup, m68k_analyze_register_saves, m68k_analyze_prologue, m68k_frame_cache, m68k_get_longjmp_target): Update. * m88k-tdep.c (m88k_fetch_instruction): Update. * mep-tdep.c (mep_pseudo_cr32_read, mep_pseudo_csr_write, mep_pseudo_cr32_write, mep_get_insn, mep_push_dummy_call): Update. * mi/mi-main.c (mi_cmd_data_write_memory): Update. * mips-linux-tdep.c (mips_linux_get_longjmp_target, supply_32bit_reg, mips64_linux_get_longjmp_target, mips64_fill_gregset, mips64_fill_fpregset, mips_linux_in_dynsym_stub): Update. * mipsnbdsd-tdep.c (mipsnbsd_get_longjmp_target): Update. * mips-tdep.c (mips_fetch_instruction, fetch_mips_16, mips_eabi_push_dummy_call, mips_n32n64_push_dummy_call, mips_o32_push_dummy_call, mips_o64_push_dummy_call, mips_single_step_through_delay, mips_skip_pic_trampoline_code, mips_integer_to_address): Update. * mn10300-tdep.c (mn10300_analyze_prologue, mn10300_push_dummy_call): Update. * monitor.c (monitor_supply_register, monitor_write_memory, monitor_read_memory_single): Update. * moxie-tdep.c (moxie_store_return_value, moxie_extract_return_value, moxie_analyze_prologue): Update. * mt-tdep.c (mt_return_value, mt_skip_prologue, mt_select_coprocessor, mt_pseudo_register_read, mt_pseudo_register_write, mt_registers_info, mt_push_dummy_call): Update. * objc-lang.c (read_objc_method, read_objc_methlist_nmethods, read_objc_methlist_method, read_objc_object, read_objc_super, read_objc_class, find_implementation_from_class): Update. * ppc64-linux-tdep.c (ppc64_desc_entry_point, ppc64_linux_convert_from_func_ptr_addr, ppc_linux_sigtramp_cache): Update. * ppcobsd-tdep.c (ppcobsd_sigtramp_frame_sniffer, ppcobsd_sigtramp_frame_cache): Update. * ppc-sysv-tdep.c (ppc_sysv_abi_push_dummy_call, do_ppc_sysv_return_value, ppc64_sysv_abi_push_dummy_call, ppc64_sysv_abi_return_value): Update. * ppc-linux-nat.c (ppc_linux_auxv_parse): Update. * procfs.c (procfs_auxv_parse): Update. * p-valprint.c (pascal_val_print): Update. * regcache.c (regcache_raw_read_signed, regcache_raw_read_unsigned, regcache_raw_write_signed, regcache_raw_write_unsigned, regcache_cooked_read_signed, regcache_cooked_read_unsigned, regcache_cooked_write_signed, regcache_cooked_write_unsigned): Update. * remote-m32r-sdi.c (m32r_fetch_register): Update. * remote-mips.c (mips_wait, mips_fetch_registers, mips_xfer_memory): Update. * rs6000-aix-tdep.c (rs6000_push_dummy_call, rs6000_return_value, rs6000_convert_from_func_ptr_addr, branch_dest, rs6000_software_single_step): Update. * rs6000-tdep.c (rs6000_in_function_epilogue_p, ppc_displaced_step_fixup, ppc_deal_with_atomic_sequence, bl_to_blrl_insn_p, rs6000_fetch_instruction, skip_prologue, rs6000_skip_main_prologue, rs6000_skip_trampoline_code, rs6000_frame_cache): Update. * s390-tdep.c (s390_pseudo_register_read, s390_pseudo_register_write, s390x_pseudo_register_read, s390x_pseudo_register_write, s390_load, s390_backchain_frame_unwind_cache, s390_sigtramp_frame_unwind_cache, extend_simple_arg, s390_push_dummy_call, s390_return_value): Update. * scm-exp.c (scm_lreadr): Update. * scm-lang.c (scm_get_field, scm_unpack): Update. * scm-valprint.c (scm_val_print): Update. * score-tdep.c (score_breakpoint_from_pc, score_push_dummy_call, score_fetch_inst): Update. * sh64-tdep.c (look_for_args_moves, sh64_skip_prologue_hard_way, sh64_analyze_prologue, sh64_push_dummy_call, sh64_extract_return_value, sh64_pseudo_register_read, sh64_pseudo_register_write, sh64_frame_prev_register): Update: * sh-tdep.c (sh_analyze_prologue, sh_push_dummy_call_fpu, sh_push_dummy_call_nofpu, sh_extract_return_value_nofpu, sh_store_return_value_nofpu, sh_in_function_epilogue_p): Update. * solib-darwin.c (darwin_load_image_infos): Update. * solib-frv.c (fetch_loadmap, lm_base, frv_current_sos, enable_break2, find_canonical_descriptor_in_load_object): Update. * solib-irix.c (extract_mips_address, fetch_lm_info, irix_current_sos, irix_open_symbol_file_object): Update. * solib-som.c (som_solib_create_inferior_hook, link_map_start, som_current_sos, som_open_symbol_file_object): Update. * solib-sunos.c (SOLIB_EXTRACT_ADDRESS, LM_ADDR, LM_NEXT, LM_NAME): Update. * solib-svr4.c (read_program_header, scan_dyntag_auxv, solib_svr4_r_ldsomap): Update. * sparc64-linux-tdep.c (sparc64_linux_step_trap): Update. * sparc64obsd-tdep.c (sparc64obsd_supply_uthread, sparc64obsd_collect_uthread): Update. * sparc64-tdep.c (sparc64_pseudo_register_read, sparc64_pseudo_register_write, sparc64_supply_gregset, sparc64_collect_gregset): Update. * sparc-linux-tdep.c (sparc32_linux_step_trap): Update. * sparcobsd-tdep.c (sparc32obsd_supply_uthread, sparc32obsd_collect_uthread): Update. * sparc-tdep.c (sparc_fetch_wcookie, sparc32_push_dummy_code, sparc32_store_arguments, sparc32_return_value, sparc_supply_rwindow, sparc_collect_rwindow): Update. * spu-linux-nat.c (parse_spufs_run): Update. * spu-tdep.c (spu_pseudo_register_read_spu, spu_pseudo_register_write_spu, spu_pointer_to_address, spu_analyze_prologue, spu_in_function_epilogue_p, spu_frame_unwind_cache, spu_push_dummy_call, spu_software_single_step, spu_get_longjmp_target, spu_get_overlay_table, spu_overlay_update_osect, info_spu_signal_command, info_spu_mailbox_list, info_spu_dma_cmdlist, info_spu_dma_command, info_spu_proxydma_command): Update. * stack.c (print_frame_nameless_args, frame_info): Update. * symfile.c (read_target_long_array, simple_read_overlay_table, simple_read_overlay_region_table): Update. * target.c (debug_print_register): Update. * tramp-frame.c (tramp_frame_start): Update. * v850-tdep.c (v850_analyze_prologue, v850_push_dummy_call, v850_extract_return_value, v850_store_return_value, * valarith.c (value_binop, value_bit_index): Update. * valops.c (value_cast): Update. * valprint.c (val_print_type_code_int, val_print_string, read_string): Update. * value.c (unpack_long, unpack_double, unpack_field_as_long, modify_field, pack_long): Update. * vax-tdep.c (vax_store_arguments, vax_push_dummy_call, vax_skip_prologue): Update. * xstormy16-tdep.c (xstormy16_push_dummy_call, xstormy16_analyze_prologue, xstormy16_in_function_epilogue_p, xstormy16_resolve_jmp_table_entry, xstormy16_find_jmp_table_entry, xstormy16_pointer_to_address, xstormy16_address_to_pointer): Update. * xtensa-tdep.c (extract_call_winsize, xtensa_pseudo_register_read, xtensa_pseudo_register_write, xtensa_frame_cache, xtensa_push_dummy_call, call0_track_op, call0_frame_cache): Update. * dfp.h (decimal_to_string, decimal_from_string, decimal_from_integral, decimal_from_floating, decimal_to_doublest, decimal_is_zero): Add BYTE_ORDER parameter. (decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT parameters. (decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters. (decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters. * dfp.c (match_endianness): Add BYTE_ORDER parameter. Use it instead of current_gdbarch. (decimal_to_string, decimal_from_integral, decimal_from_floating, decimal_to_doublest, decimal_is_zero): Add BYTE_ORDER parameter. Pass it to match_endianness. (decimal_binop): Add BYTE_ORDER_X, BYTE_ORDER_Y, and BYTE_ORDER_RESULT parameters. Pass them to match_endianness. (decimal_compare): Add BYTE_ORDER_X and BYTE_ORDER_Y parameters. Pass them to match_endianness. (decimal_convert): Add BYTE_ORDER_FROM and BYTE_ORDER_TO parameters. Pass them to match_endianness. * valarith.c (value_args_as_decimal): Add BYTE_ORDER_X and BYTE_ORDER_Y output parameters. (value_binop): Update call to value_args_as_decimal. Update calls to decimal_to_string, decimal_from_string, decimal_from_integral, decimal_from_floating, decimal_to_doublest, decimal_is_zero, decimal_binop, decimal_compare and decimal_convert to pass/receive byte order: * c-exp.y (parse_number): Update. * printcmd.c (printf_command): Update. * valarith.c (value_args_as_decimal, value_binop, value_logical_not, value_equal, value_less): Update. * valops.c (value_cast, value_one): Update. * valprint.c (print_decimal_floating): Update. * value.c (unpack_long, unpack_double): Update. * python/python-value.c (valpy_nonzero): Update. * ada-valprint.c (char_at): Add BYTE_ORDER parameter. (printstr): Update calls to char_at. (ada_val_print_array): Likewise. * valprint.c (read_string): Add BYTE_ORDER parameter. (val_print_string): Update call to read_string. * c-lang.c (c_get_string): Likewise. * charset.h (target_wide_charset): Add BYTE_ORDER parameter. * charset.c (target_wide_charset): Add BYTE_ORDER parameter. Use it instead of current_gdbarch. * printcmd.c (printf_command): Update calls to target_wide_charset. * c-lang.c (charset_for_string_type): Add BYTE_ORDER parameter. Pass to target_wide_charset. Use it instead of current_gdbarch. (classify_type): Add BYTE_ORDER parameter. Pass to charset_for_string_type. Allow NULL encoding pointer. (print_wchar): Add BYTE_ORDER parameter. (c_emit_char): Update calls to classify_type and print_wchar. (c_printchar, c_printstr): Likewise. * gdbarch.sh (in_solib_return_trampoline): Convert to type "m". * gdbarch.c, gdbarch.h: Regenerate. * arch-utils.h (generic_in_solib_return_trampoline): Add GDBARCH parameter. * arch-utils.c (generic_in_solib_return_trampoline): Likewise. * hppa-hpux-tdep.c (hppa_hpux_in_solib_return_trampoline): Likewise. * rs6000-tdep.c (rs6000_in_solib_return_trampoline): Likewise. (rs6000_skip_trampoline_code): Update call. * alpha-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to dynamic_sigtramp_offset and pc_in_sigtramp callbacks. (alpha_read_insn): Add GDBARCH parameter. * alpha-tdep.c (alpha_lds, alpha_sts): Add GDBARCH parameter. (alpha_register_to_value): Pass architecture to alpha_sts. (alpha_extract_return_value): Likewise. (alpha_value_to_register): Pass architecture to alpha_lds. (alpha_store_return_value): Likewise. (alpha_read_insn): Add GDBARCH parameter. (alpha_skip_prologue): Pass architecture to alpha_read_insn. (alpha_heuristic_proc_start): Likewise. (alpha_heuristic_frame_unwind_cache): Likewise. (alpha_next_pc): Likewise. (alpha_sigtramp_frame_this_id): Pass architecture to tdep->dynamic_sigtramp_offset callback. (alpha_sigtramp_frame_sniffer): Pass architecture to tdep->pc_in_sigtramp callback. * alphafbsd-tdep.c (alphafbsd_pc_in_sigtramp): Add GDBARCH parameter. (alphafbsd_sigtramp_offset): Likewise. * alpha-linux-tdep.c (alpha_linux_sigtramp_offset_1): Add GDBARCH parameter. Pass to alpha_read_insn. (alpha_linux_sigtramp_offset): Add GDBARCH parameter. Pass to alpha_linux_sigtramp_offset_1. (alpha_linux_pc_in_sigtramp): Add GDBARCH parameter. Pass to alpha_linux_sigtramp_offset. (alpha_linux_sigcontext_addr): Pass architecture to alpha_read_insn and alpha_linux_sigtramp_offset. * alphanbsd-tdep.c (alphanbsd_sigtramp_offset): Add GDBARCH parameter. (alphanbsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to alphanbsd_sigtramp_offset. * alphaobsd-tdep.c (alphaobsd_sigtramp_offset): Add GDBARCH parameter. (alphaobsd_pc_in_sigtramp): Add GDBARCH parameter. Pass to alpha_read_insn. (alphaobsd_sigcontext_addr): Pass architecture to alphaobsd_sigtramp_offset. * alpha-osf1-tdep.c (alpha_osf1_pc_in_sigtramp): Add GDBARCH parameter. * amd64-tdep.c (amd64_analyze_prologue): Add GDBARCH parameter. (amd64_skip_prologue): Pass architecture to amd64_analyze_prologue. (amd64_frame_cache): Likewise. * arm-tdep.c (SWAP_SHORT, SWAP_INT): Remove. (thumb_analyze_prologue, arm_skip_prologue, arm_scan_prologue, thumb_get_next_pc, arm_get_next_pc): Do not use SWAP_ macros. * arm-wince-tdep.c: Include "frame.h". * avr-tdep.c (EXTRACT_INSN): Remove. (avr_scan_prologue): Add GDBARCH argument, inline EXTRACT_INSN. (avr_skip_prologue): Pass architecture to avr_scan_prologue. (avr_frame_unwind_cache): Likewise. * cris-tdep.c (struct instruction_environment): Add BYTE_ORDER member. (find_step_target): Initialize it. (get_data_from_address): Add BYTE_ORDER parameter. (bdap_prefix): Pass byte order to get_data_from_address. (handle_prefix_assign_mode_for_aritm_op): Likewise. (three_operand_add_sub_cmp_and_or_op): Likewise. (handle_inc_and_index_mode_for_aritm_op): Likewise. * frv-linux-tdep.c (frv_linux_pc_in_sigtramp): Add GDBARCH parameter. (frv_linux_sigcontext_reg_addr): Pass architecture to frv_linux_pc_in_sigtramp. (frv_linux_sigtramp_frame_sniffer): Likewise. * h8300-tdep.c (h8300_is_argument_spill): Add GDBARCH parameter. (h8300_analyze_prologue): Add GDBARCH parameter. Pass to h8300_is_argument_spill. (h8300_frame_cache, h8300_skip_prologue): Pass architecture to h8300_analyze_prologue. * hppa-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to in_solib_call_trampoline callback. (hppa_in_solib_call_trampoline): Add GDBARCH parameter. * hppa-tdep.c (hppa64_convert_code_addr_to_fptr): Add GDBARCH parameter. (hppa64_push_dummy_call): Pass architecture to hppa64_convert_code_addr_to_fptr. (hppa_match_insns): Add GDBARCH parameter. (hppa_match_insns_relaxed): Add GDBARCH parameter. Pass to hppa_match_insns. (hppa_skip_trampoline_code): Pass architecture to hppa_match_insns. (hppa_in_solib_call_trampoline): Add GDBARCH parameter. Pass to hppa_match_insns_relaxed. (hppa_stub_unwind_sniffer): Pass architecture to tdep->in_solib_call_trampoline callback. * hppa-hpux-tdep.c (hppa_hpux_search_pattern): Add GDBARCH parameter. (hppa32_hpux_search_dummy_call_sequence): Pass architecture to hppa_hpux_search_pattern. * hppa-linux-tdep.c (insns_match_pattern): Add GDBARCH parameter. (hppa_linux_sigtramp_find_sigcontext): Add GDBARCH parameter. Pass to insns_match_pattern. (hppa_linux_sigtramp_frame_unwind_cache): Pass architecture to hppa_linux_sigtramp_find_sigcontext. (hppa_linux_sigtramp_frame_sniffer): Likewise. (hppa32_hpux_in_solib_call_trampoline): Add GDBARCH parameter. (hppa64_hpux_in_solib_call_trampoline): Likewise. * i386-tdep.c (i386_follow_jump): Add GDBARCH parameter. (i386_analyze_frame_setup): Add GDBARCH parameter. (i386_analyze_prologue): Add GDBARCH parameter. Pass to i386_follow_jump and i386_analyze_frame_setup. (i386_skip_prologue): Pass architecture to i386_analyze_prologue and i386_follow_jump. (i386_frame_cache): Pass architecture to i386_analyze_prologue. (i386_pe_skip_trampoline_code): Add FRAME parameter. * i386-tdep.h (i386_pe_skip_trampoline_code): Add FRAME parameter. * i386-cygwin-tdep.c (i386_cygwin_skip_trampoline_code): Pass frame to i386_pe_skip_trampoline_code. * ia64-tdep.h (struct gdbarch_tdep): Add GDBARCH parameter to sigcontext_register_address callback. * ia64-tdep.c (ia64_find_global_pointer): Add GDBARCH parameter. (ia64_find_unwind_table): Pass architecture to ia64_find_global_pointer. (find_extant_func_descr): Add GDBARCH parameter. (find_func_descr): Pass architecture to find_extant_func_descr and ia64_find_global_pointer. (ia64_sigtramp_frame_init_saved_regs): Pass architecture to tdep->sigcontext_register_address callback. * ia64-linux-tdep.c (ia64_linux_sigcontext_register_address): Add GDBARCH parameter. * iq2000-tdep.c (iq2000_scan_prologue): Add GDBARCH parameter. (iq2000_frame_cache): Pass architecture to iq2000_scan_prologue. * lm32-tdep.c (lm32_analyze_prologue): Add GDBARCH parameter. (lm32_skip_prologue, lm32_frame_cache): Pass architecture to lm32_analyze_prologue. * m32r-tdep.c (decode_prologue): Add GDBARCH parameter. (m32r_skip_prologue): Pass architecture to decode_prologue. * m68hc11-tdep.c (m68hc11_analyze_instruction): Add GDBARCH parameter. (m68hc11_scan_prologue): Pass architecture to m68hc11_analyze_instruction. * m68k-tdep.c (m68k_analyze_frame_setup): Add GDBARCH parameter. (m68k_analyze_prologue): Pass architecture to m68k_analyze_frame_setup. * m88k-tdep.c (m88k_fetch_instruction): Add BYTE_ORDER parameter. (m88k_analyze_prologue): Add GDBARCH parameter. Pass byte order to m88k_fetch_instruction. (m88k_skip_prologue): Pass architecture to m88k_analyze_prologue. (m88k_frame_cache): Likewise. * mep-tdep.c (mep_get_insn): Add GDBARCH parameter. (mep_analyze_prologue): Pass architecture to mep_get_insn. * mips-tdep.c (mips_fetch_instruction): Add GDBARCH parameter. (mips32_next_pc): Pass architecture to mips_fetch_instruction. (deal_with_atomic_sequence): Likewise. (unpack_mips16): Add GDBARCH parameter, pass to mips_fetch_instruction. (mips16_scan_prologue): Likewise. (mips32_scan_prologue): Likewise. (mips16_in_function_epilogue_p): Likewise. (mips32_in_function_epilogue_p): Likewise. (mips_about_to_return): Likewise. (mips_insn16_frame_cache): Pass architecture to mips16_scan_prologue. (mips_insn32_frame_cache): Pass architecture to mips32_scan_prologue. (mips_skip_prologue): Pass architecture to mips16_scan_prologue and mips32_scan_prologue. (mips_in_function_epilogue_p): Pass architecture to mips16_in_function_epilogue_p and mips32_in_function_epilogue_p. (heuristic_proc_start): Pass architecture to mips_fetch_instruction and mips_about_to_return. (mips_skip_mips16_trampoline_code): Pass architecture to mips_fetch_instruction. (fetch_mips_16): Add GDBARCH parameter. (mips16_next_pc): Pass architecture to fetch_mips_16. (extended_mips16_next_pc): Pass architecture to unpack_mips16 and fetch_mips_16. * objc-lang.c (read_objc_method, read_objc_methlist_nmethods, read_objc_methlist_method, read_objc_object, read_objc_super, read_objc_class): Add GDBARCH parameter. (find_implementation_from_class): Add GDBARCH parameter, pass to read_objc_class, read_objc_methlist_nmethods, and read_objc_methlist_method. (find_implementation): Add GDBARCH parameter, pass to read_objc_object and find_implementation_from_class. (resolve_msgsend, resolve_msgsend_stret): Pass architecture to find_implementation. (resolve_msgsend_super, resolve_msgsend_super_stret): Pass architecture to read_objc_super and find_implementation_from_class. * ppc64-linux-tdep.c (ppc64_desc_entry_point): Add GDBARCH parameter. (ppc64_standard_linkage1_target, ppc64_standard_linkage2_target, ppc64_standard_linkage3_target): Pass architecture to ppc64_desc_entry_point. * rs6000-tdep.c (bl_to_blrl_insn_p): Add BYTE_ORDER parameter. (skip_prologue): Pass byte order to bl_to_blrl_insn_p. (rs6000_fetch_instruction): Add GDBARCH parameter. (rs6000_skip_stack_check): Add GDBARCH parameter, pass to rs6000_fetch_instruction. (skip_prologue): Pass architecture to rs6000_fetch_instruction. * remote-mips.c (mips_store_word): Return old_contents as host integer value instead of target bytes. * s390-tdep.c (struct s390_prologue_data): Add BYTE_ORDER member. (s390_analyze_prologue): Initialize it. (extend_simple_arg): Add GDBARCH parameter. (s390_push_dummy_call): Pass architecture to extend_simple_arg. * scm-lang.c (scm_get_field): Add BYTE_ORDER parameter. * scm-lang.h (scm_get_field): Add BYTE_ORDER parameter. (SCM_CAR, SCM_CDR): Pass SCM_BYTE_ORDER to scm_get_field. * scm-valprint.c (scm_scmval_print): Likewise. (scm_scmlist_print, scm_ipruk, scm_scmval_print): Define SCM_BYTE_ORDER. * sh64-tdep.c (look_for_args_moves): Add GDBARCH parameter. (sh64_skip_prologue_hard_way): Add GDBARCH parameter, pass to look_for_args_moves. (sh64_skip_prologue): Pass architecture to sh64_skip_prologue_hard_way. * sh-tdep.c (sh_analyze_prologue): Add GDBARCH parameter. (sh_skip_prologue): Pass architecture to sh_analyze_prologue. (sh_frame_cache): Likewise. * solib-irix.c (extract_mips_address): Add GDBARCH parameter. (fetch_lm_info, irix_current_sos, irix_open_symbol_file_object): Pass architecture to extract_mips_address. * sparc-tdep.h (sparc_fetch_wcookie): Add GDBARCH parameter. * sparc-tdep.c (sparc_fetch_wcookie): Add GDBARCH parameter. (sparc_supply_rwindow, sparc_collect_rwindow): Pass architecture to sparc_fetch_wcookie. (sparc32_frame_prev_register): Likewise. * sparc64-tdep.c (sparc64_frame_prev_register): Likewise. * sparc32nbsd-tdep.c (sparc32nbsd_sigcontext_saved_regs): Likewise. * sparc64nbsd-tdep.c (sparc64nbsd_sigcontext_saved_regs): Likewise. * spu-tdep.c (spu_analyze_prologue): Add GDBARCH parameter. (spu_skip_prologue): Pass architecture to spu_analyze_prologue. (spu_virtual_frame_pointer): Likewise. (spu_frame_unwind_cache): Likewise. (info_spu_mailbox_list): Add BYTE_ORER parameter. (info_spu_mailbox_command): Pass byte order to info_spu_mailbox_list. (info_spu_dma_cmdlist): Add BYTE_ORER parameter. (info_spu_dma_command, info_spu_proxydma_command): Pass byte order to info_spu_dma_cmdlist. * symfile.c (read_target_long_array): Add GDBARCH parameter. (simple_read_overlay_table, simple_read_overlay_region_table, simple_overlay_update_1): Pass architecture to read_target_long_array. * v850-tdep.c (v850_analyze_prologue): Add GDBARCH parameter. (v850_frame_cache): Pass architecture to v850_analyze_prologue. * xstormy16-tdep.c (xstormy16_analyze_prologue): Add GDBARCH parameter. (xstormy16_skip_prologue, xstormy16_frame_cache): Pass architecture to xstormy16_analyze_prologue. (xstormy16_resolve_jmp_table_entry): Add GDBARCH parameter. (xstormy16_find_jmp_table_entry): Likewise. (xstormy16_skip_trampoline_code): Pass architecture to xstormy16_resolve_jmp_table_entry. (xstormy16_pointer_to_address): Likewise. (xstormy16_address_to_pointer): Pass architecture to xstormy16_find_jmp_table_entry. * xtensa-tdep.c (call0_track_op): Add GDBARCH parameter. (call0_analyze_prologue): Add GDBARCH parameter, pass to call0_track_op. (call0_frame_cache): Pass architecture to call0_analyze_prologue. (xtensa_skip_prologue): Likewise.
2009-07-02 17:25:59 +00:00
length = extract_unsigned_integer (loc_ptr, 2, byte_order);
loc_ptr += 2;
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
if (low == high && pc == low)
{
/* This is entry PC record present only at entry point
of a function. Verify it is really the function entry point. */
constify struct block in some places This makes some spots in gdb, particularly general_symbol_info, use a "const struct block", then fixes the fallout. The justification is that, ordinarily, blocks ought to be readonly. Note though that we can't add "const" in the blockvector due to block relocation. This can be done once blocks are made independent of the program space. 2014-06-18 Tom Tromey <tromey@redhat.com> * varobj.c (varobj_create): Update. * valops.c (value_of_this): Update. * tracepoint.c (add_local_symbols, scope_info): Update. * symtab.h (struct general_symbol_info) <block>: Now const. * symtab.c (skip_prologue_sal) (default_make_symbol_completion_list_break_on) (skip_prologue_using_sal): Update. * stack.h (iterate_over_block_locals) (iterate_over_block_local_vars): Update. * stack.c (print_frame_args): Update. (iterate_over_block_locals, iterate_over_block_local_vars): Make parameter const. (get_selected_block): Make return type const. * python/py-frame.c (frapy_block): Update. * python/py-block.c (gdbpy_block_for_pc): Update. * p-exp.y (%union) <bval>: Now const. * mi/mi-cmd-stack.c (list_args_or_locals): Update. * mdebugread.c (mylookup_symbol, parse_procedure): Update. * m2-exp.y (%union) <bval>: Now const. * linespec.c (get_current_search_block): Make return type const. (create_sals_line_offset, find_label_symbols): Update. * inline-frame.c (inline_frame_sniffer, skip_inline_frames): Update. (block_starting_point_at): Make "block" const. * infrun.c (insert_exception_resume_breakpoint): Make "b" const. (check_exception_resume): Update. * guile/scm-frame.c (gdbscm_frame_block): Update. * guile/scm-block.c (gdbscm_lookup_block): Update. * frame.h (get_frame_block): Update. (get_selected_block): Make return type const. * frame.c (frame_id_inner): Update. * f-valprint.c (info_common_command_for_block) (info_common_command): Update. * dwarf2loc.c (dwarf2_find_location_expression) (dwarf_expr_frame_base, dwarf2_compile_expr_to_ax) (locexpr_describe_location_piece): Update. * c-exp.y (%union) <bval>: Now const. * breakpoint.c (resolve_sal_pc): Update. * blockframe.c (get_frame_block):Make return type const. (get_pc_function_start, get_frame_function, find_pc_sect_function) (block_innermost_frame): Update. * block.h (blockvector_for_pc, blockvector_for_pc_sect) (block_for_pc, block_for_pc_sect): Update. * block.c (blockvector_for_pc_sect, blockvector_for_pc): Make 'pblock' const. (block_for_pc_sect, block_for_pc): Make return type const. * ax-gdb.c (gen_expr): Update. * alpha-mdebug-tdep.c (find_proc_desc): Update. * ada-lang.c (ada_read_renaming_var_value): Make 'block' const. (ada_make_symbol_completion_list, ada_add_exceptions_from_frame) (ada_read_var_value): Update. * ada-exp.y (struct name_info) <block>: Now const. (%union): Likewise. (block_lookup): Constify.
2013-03-12 15:51:37 +00:00
const struct block *pc_block = block_for_pc (pc);
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
struct symbol *pc_func = NULL;
if (pc_block)
pc_func = block_linkage_function (pc_block);
if (pc_func && pc == BLOCK_START (SYMBOL_BLOCK_VALUE (pc_func)))
{
*locexpr_length = length;
return loc_ptr;
}
}
if (pc >= low && pc < high)
{
*locexpr_length = length;
return loc_ptr;
}
loc_ptr += length;
}
}
/* This is the baton used when performing dwarf2 expression
evaluation. */
struct dwarf_expr_baton
{
struct frame_info *frame;
struct dwarf2_per_cu_data *per_cu;
CORE_ADDR obj_address;
};
/* Helper functions for dwarf2_evaluate_loc_desc. */
/* Using the frame specified in BATON, return the value of register
REGNUM, treated as a pointer. */
static CORE_ADDR
dwarf_expr_read_addr_from_reg (void *baton, int dwarf_regnum)
{
struct dwarf_expr_baton *debaton = (struct dwarf_expr_baton *) baton;
* objfiles.h (struct objfile): New GDBARCH member. (get_objfile_arch): Add prototype. * objfiles.c: Include "arch-utils.h". (allocate_objfile): Look up gdbarch associated with bfd. (get_objfile_arch): New function. * Makefile (objfiles.o): Update dependencies. * dwarf2-frame.c (decode_frame_entry_1): Replace current_gdbarch by objfile arch. * dwarf2loc.c (dwarf_expr_read_reg): Replace current_gdbarch by frame arch. (locexpr_describe_location): Replace current_gdbarch by objfile arch. * dwarf2read.c (die_type): Replace current_gdbarch by objfile arch. (dwarf2_add_field): Likewise. (read_tag_pointer_type): Likewise. (read_base_type): Likewise. (new_symbol): Likewise. * coffread.c (decode_type): Add OBJFILE argument. Update callers. (decode_base_type, decode_function_type): Likewise. (coff_read_struct_type, coff_read_enum_type): Likewise. (coff_symtab_read): Replace current_gdbarch by objfile arch. (decode_base_type): Likewise. (coff_read_enum_type): Likewise. (coff_read_struct_type): Replace current_objfile by OBJFILE argument. (coff_read_enum_type): Likewise. * dbxread.c (read_dbx_symtab): Replace current_gdbarch by objfile arch. (end_psymtab): Likewise. (process_one_symbol): Likewise. * mdebugread.c (parse_symbol): Replace current_gdbarch by objfile arch. (parse_procedure): Likewise. (parse_partial_symbols): Likewise. * somread.c (som_symtab_read): Replace current_gdbarch by objfile arch. * stabsread.c (define_symbol): Replace current_gdbarch by objfile arch. Replace static pcc_promotion_type and pcc_unsigned_promotion_type by built-in types. (read_range_type): Replace current_gdbarch by objfile arch. Replace static range_index_type by built-in type. (read_one_struct_field): Replace current_gdbarch by objfile arch. (read_enum_type): Likewise. * xcoffread.c (read_xcoff_symtab): Replace current_gdbarch by objfile arch.
2008-03-26 14:53:28 +00:00
struct gdbarch *gdbarch = get_frame_arch (debaton->frame);
Use address_from_register in dwarf2-frame.c:read_addr_from_reg This patch fixes a problem that prevented use of the Dwarf unwinders on SPU, because dwarf2-frame.c common code did not support the situation where the stack and/or frame pointer is maintained in a *vector* register. This is because read_addr_from_reg is hard-coded to assume that such pointers can be read from registers via a simple get_frame_register / unpack_pointer operation. Now, there *is* a routine address_from_register that calls into the appropriate tdep routines to handle pointer values in "weird" registers like on SPU, but it turns out I cannot simply change dwarf2-frame.c to use address_from_register. This is because address_from_register uses value_from_register to create a (temporary) value, and that routine at some point calls get_frame_id in order to set up that value's VALUE_FRAME_ID entry. However, the dwarf2-frame.c read_addr_from_reg routine will be called during early unwinding (to unwind the frame's CFA), at which point the frame's ID is not actually known yet! This would cause an assert. On the other hand, we may notice that VALUE_FRAME_ID is only needed in the value returned by value_from_register if that value is later used as an lvalue. But this is obviously never done to the temporary value used in address_from_register. So, if we could change address_from_register to not call value_from_register but instead accept constructing a value that doesn't have VALUE_FRAME_ID set, things should be fine. To do that, we can change the value_from_register callback to accept a FRAME_ID instead of a FRAME; the only existing uses of the FRAME argument were either to extract its frame ID, or its gdbarch. (To keep a way of getting at the latter, we also change the callback's type from "f" to "m".) Together with the required follow-on changes in the existing value_from_register implementations (including the default one), this seems to fix the problem. As another minor interface cleanup, I've removed the explicit TYPE argument from address_from_register. This routine really always uses a default pointer type, and in the new implementation it -to some extent- relies on that fact, in that it will now no longer handle types that require gdbarch_convert_register_p handling. gdb: 2014-04-17 Ulrich Weigand  <uweigand@de.ibm.com> * gdbarch.sh (value_from_register): Make class "m" instead of "f". Replace FRAME argument with FRAME_ID. * gdbarch.c, gdbarch.h: Regenerate. * findvar.c (default_value_from_register): Add GDBARCH argument; replace FRAME by FRAME_ID. No longer call get_frame_id. (value_from_register): Update call to gdbarch_value_from_register. * value.h (default_value_from_register): Update prototype. * s390-linux-tdep.c (s390_value_from_register): Update interface and call to default_value_from_register. * spu-tdep.c (spu_value_from_register): Likewise. * findvar.c (address_from_register): Remove TYPE argument. Do not call value_from_register; use gdbarch_value_from_register with null_frame_id instead. * value.h (address_from_register): Update prototype. * dwarf2-frame.c (read_addr_from_reg): Use address_from_register. * dwarf2loc.c (dwarf_expr_read_addr_from_reg): Update for address_from_register interface change.
2014-04-17 12:01:39 +00:00
int regnum = gdbarch_dwarf2_reg_to_regnum (gdbarch, dwarf_regnum);
Use address_from_register in dwarf2-frame.c:read_addr_from_reg This patch fixes a problem that prevented use of the Dwarf unwinders on SPU, because dwarf2-frame.c common code did not support the situation where the stack and/or frame pointer is maintained in a *vector* register. This is because read_addr_from_reg is hard-coded to assume that such pointers can be read from registers via a simple get_frame_register / unpack_pointer operation. Now, there *is* a routine address_from_register that calls into the appropriate tdep routines to handle pointer values in "weird" registers like on SPU, but it turns out I cannot simply change dwarf2-frame.c to use address_from_register. This is because address_from_register uses value_from_register to create a (temporary) value, and that routine at some point calls get_frame_id in order to set up that value's VALUE_FRAME_ID entry. However, the dwarf2-frame.c read_addr_from_reg routine will be called during early unwinding (to unwind the frame's CFA), at which point the frame's ID is not actually known yet! This would cause an assert. On the other hand, we may notice that VALUE_FRAME_ID is only needed in the value returned by value_from_register if that value is later used as an lvalue. But this is obviously never done to the temporary value used in address_from_register. So, if we could change address_from_register to not call value_from_register but instead accept constructing a value that doesn't have VALUE_FRAME_ID set, things should be fine. To do that, we can change the value_from_register callback to accept a FRAME_ID instead of a FRAME; the only existing uses of the FRAME argument were either to extract its frame ID, or its gdbarch. (To keep a way of getting at the latter, we also change the callback's type from "f" to "m".) Together with the required follow-on changes in the existing value_from_register implementations (including the default one), this seems to fix the problem. As another minor interface cleanup, I've removed the explicit TYPE argument from address_from_register. This routine really always uses a default pointer type, and in the new implementation it -to some extent- relies on that fact, in that it will now no longer handle types that require gdbarch_convert_register_p handling. gdb: 2014-04-17 Ulrich Weigand  <uweigand@de.ibm.com> * gdbarch.sh (value_from_register): Make class "m" instead of "f". Replace FRAME argument with FRAME_ID. * gdbarch.c, gdbarch.h: Regenerate. * findvar.c (default_value_from_register): Add GDBARCH argument; replace FRAME by FRAME_ID. No longer call get_frame_id. (value_from_register): Update call to gdbarch_value_from_register. * value.h (default_value_from_register): Update prototype. * s390-linux-tdep.c (s390_value_from_register): Update interface and call to default_value_from_register. * spu-tdep.c (spu_value_from_register): Likewise. * findvar.c (address_from_register): Remove TYPE argument. Do not call value_from_register; use gdbarch_value_from_register with null_frame_id instead. * value.h (address_from_register): Update prototype. * dwarf2-frame.c (read_addr_from_reg): Use address_from_register. * dwarf2loc.c (dwarf_expr_read_addr_from_reg): Update for address_from_register interface change.
2014-04-17 12:01:39 +00:00
return address_from_register (regnum, debaton->frame);
}
Fix DW_OP_GNU_regval_type with FP registers Consider the following code, compiled at -O2 on ppc-linux: procedure Increment (Val : in out Float; Msg : String); The implementation does not really matter in this case). In our example, this function is being called from a function with Param_1 set to 99.0. Trying to break inside that function, and running until reaching that breakpoint yields: (gdb) b increment Breakpoint 1 at 0x100014b4: file callee.adb, line 6. (gdb) run Starting program: /[...]/foo Breakpoint 1, callee.increment (val=99.0, val@entry=0.0, msg=...) at callee.adb:6 6 if Val > 200.0 then The @entry value for parameter "val" is incorrect, it should be 99.0. The associated call-site parameter DIE looks like this: .uleb128 0xc # (DIE (0x115) DW_TAG_GNU_call_site_parameter) .byte 0x2 # DW_AT_location .byte 0x90 # DW_OP_regx .uleb128 0x21 .byte 0x3 # DW_AT_GNU_call_site_value .byte 0xf5 # DW_OP_GNU_regval_type .uleb128 0x3f .uleb128 0x25 The DW_AT_GNU_call_site_value uses a DW_OP_GNU_regval_type operation, referencing register 0x3f=63, which is $f31, an 8-byte floating register. In that register, the value is stored using the usual 8-byte float format: (gdb) info float f31 99.0 (raw 0x4058c00000000000) The current code evaluating DW_OP_GNU_regval_type operations currently is (dwarf2expr.c:execute_stack_op): result = (ctx->funcs->read_reg) (ctx->baton, reg); result_val = value_from_ulongest (address_type, result); result_val = value_from_contents (type, value_contents_all (result_val)); What the ctx->funcs->read_reg function does is read the contents of the register as if it contained an address. The rest of the code continues that assumption, thinking it's OK to then use that to create an address/ulongest struct value, which we then re-type to the type specified by DW_OP_GNU_regval_type. We're getting 0.0 above because the read_reg implementations end up treating the contents of the FP register as an integral, reading only 4 out of the 8 bytes. Being a big-endian target, we read the high-order ones, which gives us zero. This patch fixes the problem by introducing a new callback to read the contents of a register as a given type, and then adjust the handling of DW_OP_GNU_regval_type to use that new callback. gdb/ChangeLog: * dwarf2expr.h (struct dwarf_expr_context_funcs) <read_reg>: Extend the documentation a bit. <get_reg_value>: New field. * dwarf2loc.c (dwarf_expr_get_reg_value) (needs_frame_get_reg_value): New functions. (dwarf_expr_ctx_funcs, needs_frame_ctx_funcs): Add "get_reg_value" callback. * dwarf2-frame.c (get_reg_value): New function. (dwarf2_frame_ctx_funcs): Add "get_reg_value" callback. * dwarf2expr.c (execute_stack_op) <DW_OP_GNU_regval_type>: Use new callback to compute result_val. gdb/testsuite/ChangeLog: * gdb.ada/O2_float_param: New testcase.
2013-10-31 05:36:21 +00:00
/* Implement struct dwarf_expr_context_funcs' "get_reg_value" callback. */
static struct value *
dwarf_expr_get_reg_value (void *baton, struct type *type, int dwarf_regnum)
{
struct dwarf_expr_baton *debaton = (struct dwarf_expr_baton *) baton;
struct gdbarch *gdbarch = get_frame_arch (debaton->frame);
int regnum = gdbarch_dwarf2_reg_to_regnum (gdbarch, dwarf_regnum);
return value_from_register (type, regnum, debaton->frame);
}
/* Read memory at ADDR (length LEN) into BUF. */
static void
* dwarf2expr.h: Tweak comment. (struct dwarf_expr_context): Use `gdb_byte *' in read_mem and get_frame_base function pointers. (read_uleb128, read_sleb128): Change return type and types of first two arguments to `gdb_byte *'. (dwarf2_read_address): Change types of first two arguments to `gdb_byte *'. * dwarf2expr.c: Tweak comment. (dwarf_expr_eval): Change type of second argument to `gdb_byte *'. (read_uleb128, read_sleb128): Change return type and types of first two arguments to `gdb_byte *'. (dwarf2_read_address): Change types of first two arguments to `gdb_byte *'. (execute_stack_op): Change types of last two arguments to `gdb_byte *'. Use `gdb_byte *' for byte buffers. * dwarf2loc.h: Tweak comment. (struct dwarf2_locexpr_baton, struct dwarf2_loclist_baton): Use `gdb_byte *' for byte buffers. * dwarf2loc.c (find_location_expression): Change return type to `gdb_byte *'. Use `gdb_byte *' for byte buffers. Change length to `unsigned int'. (dwarf_expr_read_reg): Use `gdb_byte *' for byte buffer. Remove bogus cast. (dwarf_expr_read_mem): Change type of second argument to `gdb_byte *'. (dwarf_expr_frame_base): Change type of second argument to `gdb_byte **'. (dwarf2_evaluate_loc_desc): Change type of third argument to `gdb_byte *'. (needs_frame_read_mem): Change type of second argument to `gdb_byte *'. (needs_frame_frame_base): Change type of second argument `gdb_byte **'. Use gdb_byte for lit0. (dwarf2_tracepoint_var_ref): Change type of fourth argument to `gdb_byte *'. Use `gdb_byte *' for byte buffer. (loclist_read_variable, loclist_tracepoint_var_ref): Use `gdb_byte *' for byte buffer. * dwarf2-frame.c (struct dwarf2_cie, struct dwarf2_fde) (struct dwarf2_frame_state): Use gdb_byte instead of `unsigned char'. (read_reg): Use `gdb_byte *' for byte buffers. Remove redundant cast. (read_mem): Change second argument to `gdb_byte *'. (no_get_frame_base): Change second argument to `gdb_byte **'. (execute_stack_op): Change first argument to `gdb_byte *'. (execute_cfa_program): Change first two arguments to `gdb_byte *'. Use gdb_byte instead of `unsigned int'. Use temprorary variable to store result of read_uleb128. (struct comp_unit): Use `gdb_byte *' for byte buffers. (read_1_byte, read_4_bytes, read_8_bytes): Change last argument to `gdb_byte *'. (read_unsigned_leb128, read_signed_leb128): Change second argument to `gdb_byte *'. Use gdb_byte instead of `unsigned char'. (read_initial_length): Change second argument to `gdb_byte *'. Remove redundant casts. (read_encoded_value): Use gdb_byte instead of `unsigned char'. Remove bogus casts. (decode_frame_entry_1): Change return type and second argument to `gdb_byte *'. Use `gdb_byte *' for byte buffers. Use gdb_byte instead of `unsigned char'. (decode_frame_entry): Change return type and second argument to `gdb_byte *'. Use `gdb_byte *' for byte buffers. (dwarf2_build_frame_info): Use `gdb_byte *' for byte buffers.
2005-07-12 13:06:54 +00:00
dwarf_expr_read_mem (void *baton, gdb_byte *buf, CORE_ADDR addr, size_t len)
{
read_memory (addr, buf, len);
}
/* Using the frame specified in BATON, find the location expression
describing the frame base. Return a pointer to it in START and
its length in LENGTH. */
static void
dwarf_expr_frame_base (void *baton, const gdb_byte **start, size_t * length)
{
/* FIXME: cagney/2003-03-26: This code should be using
get_frame_base_address(), and then implement a dwarf2 specific
this_base method. */
struct symbol *framefunc;
struct dwarf_expr_baton *debaton = (struct dwarf_expr_baton *) baton;
constify struct block in some places This makes some spots in gdb, particularly general_symbol_info, use a "const struct block", then fixes the fallout. The justification is that, ordinarily, blocks ought to be readonly. Note though that we can't add "const" in the blockvector due to block relocation. This can be done once blocks are made independent of the program space. 2014-06-18 Tom Tromey <tromey@redhat.com> * varobj.c (varobj_create): Update. * valops.c (value_of_this): Update. * tracepoint.c (add_local_symbols, scope_info): Update. * symtab.h (struct general_symbol_info) <block>: Now const. * symtab.c (skip_prologue_sal) (default_make_symbol_completion_list_break_on) (skip_prologue_using_sal): Update. * stack.h (iterate_over_block_locals) (iterate_over_block_local_vars): Update. * stack.c (print_frame_args): Update. (iterate_over_block_locals, iterate_over_block_local_vars): Make parameter const. (get_selected_block): Make return type const. * python/py-frame.c (frapy_block): Update. * python/py-block.c (gdbpy_block_for_pc): Update. * p-exp.y (%union) <bval>: Now const. * mi/mi-cmd-stack.c (list_args_or_locals): Update. * mdebugread.c (mylookup_symbol, parse_procedure): Update. * m2-exp.y (%union) <bval>: Now const. * linespec.c (get_current_search_block): Make return type const. (create_sals_line_offset, find_label_symbols): Update. * inline-frame.c (inline_frame_sniffer, skip_inline_frames): Update. (block_starting_point_at): Make "block" const. * infrun.c (insert_exception_resume_breakpoint): Make "b" const. (check_exception_resume): Update. * guile/scm-frame.c (gdbscm_frame_block): Update. * guile/scm-block.c (gdbscm_lookup_block): Update. * frame.h (get_frame_block): Update. (get_selected_block): Make return type const. * frame.c (frame_id_inner): Update. * f-valprint.c (info_common_command_for_block) (info_common_command): Update. * dwarf2loc.c (dwarf2_find_location_expression) (dwarf_expr_frame_base, dwarf2_compile_expr_to_ax) (locexpr_describe_location_piece): Update. * c-exp.y (%union) <bval>: Now const. * breakpoint.c (resolve_sal_pc): Update. * blockframe.c (get_frame_block):Make return type const. (get_pc_function_start, get_frame_function, find_pc_sect_function) (block_innermost_frame): Update. * block.h (blockvector_for_pc, blockvector_for_pc_sect) (block_for_pc, block_for_pc_sect): Update. * block.c (blockvector_for_pc_sect, blockvector_for_pc): Make 'pblock' const. (block_for_pc_sect, block_for_pc): Make return type const. * ax-gdb.c (gen_expr): Update. * alpha-mdebug-tdep.c (find_proc_desc): Update. * ada-lang.c (ada_read_renaming_var_value): Make 'block' const. (ada_make_symbol_completion_list, ada_add_exceptions_from_frame) (ada_read_var_value): Update. * ada-exp.y (struct name_info) <block>: Now const. (%union): Likewise. (block_lookup): Constify.
2013-03-12 15:51:37 +00:00
const struct block *bl = get_frame_block (debaton->frame, NULL);
if (bl == NULL)
error (_("frame address is not available."));
gdb/ * NEWS: Document inlined function support. * Makefile.in (SFILES): Add inline-frame.c. (COMMON_OBS): Add inline-frame.o. * block.c (contained_in): Rewrite to use lexical nesting. (block_linkage_function): Skip inlined function blocks. (block_inlined_p): New. * block.h (struct block): Update comment. (block_inlined_p): New prototype. * blockframe.c (get_frame_block): Handle inlined functions. (get_frame_function): Do not use block_linkage_function. (block_innermost_frame): Use get_frame_block and contained_in. * breakpoint.c (watchpoint_check): Remove extra reinit_frame_cache. Skip over inlined functions. Simplify epilogue check. (bpstat_check_breakpoint_conditions): Use get_stack_frame_id. Update comments. (set_momentary_breakpoint): Only accept non-inlined frames. (watch_command_1): Use frame_unwind_caller_pc and frame_unwind_caller_id instead of get_prev_frame. (until_break_command): Likewise. Use get_stack_frame_id. * buildsym.c (end_symtab): Set SYMBOL_SYMTAB for block functions. * dwarf2loc.c (dwarf_expr_frame_base): Use block_linkage_function. * dwarf2read.c (process_die): Handle DW_TAG_inlined_subroutine. (read_func_scope, new_symbol): Likewise. Handle arguments specially for inlined functions without call site information. (inherit_abstract_dies): Allow tag mismatch for inlined subroutines. (die_specification): Treat DW_AT_abstract_origin as a specification. (read_type_die): Handle DW_TAG_inlined_subroutine. * frame-unwind.c (frame_unwind_init): Add inline_frame_unwind. * frame.c (fprint_frame_id): Print inline depth. (fprint_frame_type): Handle INLINE_FRAME and SENTINEL_FRAME. (skip_inlined_frames, get_stack_frame_id): New. (frame_unwind_caller_id): Use skip_inlined_frames. (frame_id_inlined_p): New. (frame_id_eq): Make the logic match the comments. Add inline_depth check. (frame_id_inner): Handle inlined functions. (frame_unwind_pc): New function, copied from frame_unwind_caller_pc. (frame_unwind_caller_pc): Use skip_inlined_frames and frame_unwind_pc. (get_prev_frame_1): Check for inline frames. Split out frame allocation to get_prev_frame_raw. (get_prev_frame_raw): New function. (get_prev_frame): Handle inline frames. (get_frame_pc): Use frame_unwind_pc. (get_frame_address_in_block): Skip inlined frames on both sides. (pc_notcurrent): Delete. (find_frame_sal): Rewrite to handle inline call sites. Use get_frame_address_in_block. (deprecated_update_frame_pc_hack): Make static. * frame.h: Update comments. (struct frame_id): Add inline_depth. (enum frame_type): Add INLINE_FRAME. (frame_id_inlined_p, get_stack_frame_id): New prototypes. * gdbthread.h (struct thread_info): Add step_stack_frame_id field. * infcmd.c (set_step_frame): New function. (step_once): Use set_step_frame. Handle inlined functions. (until_next_command): Use set_step_frame. (finish_backward), finish_forward): Use get_stack_frame_id. (finish_command): Support inlined functions. * inferior.h (set_step_info): New prototype. * infrun.c (RESUME_ALL): Use minus_one_ptid. (clear_proceed_status): Clear step_stack_frame_id. (init_wait_for_inferior): Call clear_inline_frame_state. (init_execution_control_state): Make static. (set_step_info): New function. (init_thread_stepping_state): Do not set the symtab or line here. (stepped_in_from): New function. (handle_inferior_event): Handle inlined functions. Use set_step_info. (insert_step_resume_breakpoint_at_frame): Use get_stack_frame_id. (struct inferior_status): Add step_stack_frame_id. (save_inferior_status, restore_inferior_status): Save and restore step_stack_frame_id. * inline-frame.c, inline-frame.h: New files. * minsyms.c (prim_record_minimal_symbol_and_info): Use XCALLOC. * regcache.c (regcache_write_pc): Call reinit_frame_cache. * s390-tdep.c (s390_prologue_frame_unwind_cache): Handle INLINE_FRAME. * stack.c (frame_show_address): New. (print_frame_info, print_frame): Use it. (find_frame_funname): Use get_frame_function. Handle inlined blocks. (frame_info): Mark inlined functions. (backtrace_command_1): Use get_current_user_frame. (print_frame_local_vars, print_frame_label_vars): Update comments. (return_command): Refuse inlined functions. * symtab.c (lookup_symbol_aux_local): Stop at inlined function boundaries. (find_function_start_sal): Avoid inlined functions. (completion_list_add_fields): New function. (default_make_symbol_completion_list): Use it. Use block_static_block and block_global_block. Check for inlined functions. (skip_prologue_using_sal): Avoid line number comparison across inlining. * symtab.h (struct symbol): Add is_inlined. (SYMBOL_INLINED): New. * target.c (target_resume): Call clear_inline_frame_state. * valops.c (value_of_variable): Check block_inlined_p. gdb/doc/ * gdb.texinfo (Debugging Optimized Code): New chapter. (Compiling for Debugging): Reference it. Move some text to the new section. gdb/testsuite/ * gdb.base/break.exp: Add an XFAIL for gcc/36748. * gdb.cp/annota2.exp: Accept frames-invalid in more places. * gdb.opt/Makefile.in (EXECUTABLES): Update. * gdb.opt/clobbered-registers-O2.exp: Update to GPL v3. * gdb.opt/inline-bt.c, gdb.opt/inline-bt.exp, gdb.opt/inline-cmds.c, gdb.opt/inline-cmds.exp, gdb.opt/inline-locals.c, gdb.opt/inline-locals.exp, gdb.opt/inline-markers.c: New files. * lib/gdb.exp (skip_inline_frame_tests): New function. (skip_inline_var_tests): New function.
2009-06-28 00:20:24 +00:00
/* Use block_linkage_function, which returns a real (not inlined)
function, instead of get_frame_function, which may return an
inlined function. */
framefunc = block_linkage_function (bl);
/* If we found a frame-relative symbol then it was certainly within
some function associated with a frame. If we can't find the frame,
something has gone wrong. */
gdb_assert (framefunc != NULL);
func_get_frame_base_dwarf_block (framefunc,
get_frame_address_in_block (debaton->frame),
start, length);
}
2013-03-20 Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> PR symtab/8421: * coffread.c (coff_register_index): New global. (process_coff_symbol, coff_read_enum_type): Set SYMBOL_ACLASS_INDEX. (_initialize_coffread): Initialize new global. * dwarf2loc.c (locexpr_find_frame_base_location) (dwarf2_block_frame_base_locexpr_funcs) (loclist_find_frame_base_location) (dwarf2_block_frame_base_loclist_funcs): New. (dwarf_expr_frame_base_1): Call SYMBOL_BLOCK_OPS, remove internal_error. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Add location_has_loclist. * dwarf2loc.h (dwarf2_block_frame_base_locexpr_funcs) (dwarf2_block_frame_base_loclist_funcs): New. * dwarf2read.c (dwarf2_locexpr_index, dwarf2_loclist_index) (dwarf2_locexpr_block_index, dwarf2_loclist_block_index): New globals. (read_func_scope): Update. (fixup_go_packaging, mark_common_block_symbol_computed) (var_decode_location, new_symbol_full, dwarf2_const_value): Set SYMBOL_ACLASS_INDEX. (dwarf2_symbol_mark_computed): Likewise. Add 'is_block' argument. (_initialize_dwarf2_read): Initialize new globals. * jit.c (finalize_symtab): Set SYMBOL_ACLASS_INDEX. * jv-lang.c (add_class_symbol): Set SYMBOL_ACLASS_INDEX. * mdebugread.c (mdebug_register_index, mdebug_regparm_index): New globals. (parse_symbol, psymtab_to_symtab_1): Set SYMBOL_ACLASS_INDEX. (_initialize_mdebugread): Initialize new globals. * psympriv.h (struct partial_symbol) <aclass>: Update comment. * stabsread.c (patch_block_stabs): Set SYMBOL_ACLASS_INDEX. (stab_register_index, stab_regparm_index): New globals. (define_symbol, read_enum_type, common_block_end): Set SYMBOL_ACLASS_INDEX. (_initialize_stabsread): Initialize new globals. * symtab.c (next_aclass_value, symbol_impl, symbol_impls): New globals. (MAX_SYMBOL_IMPLS): New define. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl) (initialize_ordinary_address_classes): New functions. (_initialize_symtab): Call initialize_ordinary_address_classes. * symtab.h (enum address_class) <LOC_FINAL_VALUE>: New constant. (struct symbol_impl): New. (SYMBOL_ACLASS_BITS): New define. (struct symbol) <aclass, ops>: Remove fields. <aclass_index>: New field. (symbol_impls): Declare. (SYMBOL_CLASS, SYMBOL_COMPUTED_OPS, SYMBOL_REGISTER_OPS): Redefine. (SYMBOL_IMPL, SYMBOL_ACLASS_INDEX): New defines. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl): Declare. (struct symbol_computed_ops): Add location_has_loclist. (struct symbol_block_ops): New. (SYMBOL_BLOCK_OPS): New. * xcoffread.c (process_xcoff_symbol): Set SYMBOL_ACLASS_INDEX.
2013-03-20 18:33:05 +00:00
/* Implement find_frame_base_location method for LOC_BLOCK functions using
DWARF expression for its DW_AT_frame_base. */
static void
locexpr_find_frame_base_location (struct symbol *framefunc, CORE_ADDR pc,
const gdb_byte **start, size_t *length)
{
struct dwarf2_locexpr_baton *symbaton = SYMBOL_LOCATION_BATON (framefunc);
*length = symbaton->size;
*start = symbaton->data;
}
/* Vector for inferior functions as represented by LOC_BLOCK, if the inferior
function uses DWARF expression for its DW_AT_frame_base. */
const struct symbol_block_ops dwarf2_block_frame_base_locexpr_funcs =
{
locexpr_find_frame_base_location
};
/* Implement find_frame_base_location method for LOC_BLOCK functions using
DWARF location list for its DW_AT_frame_base. */
static void
loclist_find_frame_base_location (struct symbol *framefunc, CORE_ADDR pc,
const gdb_byte **start, size_t *length)
{
struct dwarf2_loclist_baton *symbaton = SYMBOL_LOCATION_BATON (framefunc);
*start = dwarf2_find_location_expression (symbaton, length, pc);
}
/* Vector for inferior functions as represented by LOC_BLOCK, if the inferior
function uses DWARF location list for its DW_AT_frame_base. */
const struct symbol_block_ops dwarf2_block_frame_base_loclist_funcs =
{
loclist_find_frame_base_location
};
/* See dwarf2loc.h. */
void
func_get_frame_base_dwarf_block (struct symbol *framefunc, CORE_ADDR pc,
const gdb_byte **start, size_t *length)
{
2013-03-20 Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> PR symtab/8421: * coffread.c (coff_register_index): New global. (process_coff_symbol, coff_read_enum_type): Set SYMBOL_ACLASS_INDEX. (_initialize_coffread): Initialize new global. * dwarf2loc.c (locexpr_find_frame_base_location) (dwarf2_block_frame_base_locexpr_funcs) (loclist_find_frame_base_location) (dwarf2_block_frame_base_loclist_funcs): New. (dwarf_expr_frame_base_1): Call SYMBOL_BLOCK_OPS, remove internal_error. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Add location_has_loclist. * dwarf2loc.h (dwarf2_block_frame_base_locexpr_funcs) (dwarf2_block_frame_base_loclist_funcs): New. * dwarf2read.c (dwarf2_locexpr_index, dwarf2_loclist_index) (dwarf2_locexpr_block_index, dwarf2_loclist_block_index): New globals. (read_func_scope): Update. (fixup_go_packaging, mark_common_block_symbol_computed) (var_decode_location, new_symbol_full, dwarf2_const_value): Set SYMBOL_ACLASS_INDEX. (dwarf2_symbol_mark_computed): Likewise. Add 'is_block' argument. (_initialize_dwarf2_read): Initialize new globals. * jit.c (finalize_symtab): Set SYMBOL_ACLASS_INDEX. * jv-lang.c (add_class_symbol): Set SYMBOL_ACLASS_INDEX. * mdebugread.c (mdebug_register_index, mdebug_regparm_index): New globals. (parse_symbol, psymtab_to_symtab_1): Set SYMBOL_ACLASS_INDEX. (_initialize_mdebugread): Initialize new globals. * psympriv.h (struct partial_symbol) <aclass>: Update comment. * stabsread.c (patch_block_stabs): Set SYMBOL_ACLASS_INDEX. (stab_register_index, stab_regparm_index): New globals. (define_symbol, read_enum_type, common_block_end): Set SYMBOL_ACLASS_INDEX. (_initialize_stabsread): Initialize new globals. * symtab.c (next_aclass_value, symbol_impl, symbol_impls): New globals. (MAX_SYMBOL_IMPLS): New define. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl) (initialize_ordinary_address_classes): New functions. (_initialize_symtab): Call initialize_ordinary_address_classes. * symtab.h (enum address_class) <LOC_FINAL_VALUE>: New constant. (struct symbol_impl): New. (SYMBOL_ACLASS_BITS): New define. (struct symbol) <aclass, ops>: Remove fields. <aclass_index>: New field. (symbol_impls): Declare. (SYMBOL_CLASS, SYMBOL_COMPUTED_OPS, SYMBOL_REGISTER_OPS): Redefine. (SYMBOL_IMPL, SYMBOL_ACLASS_INDEX): New defines. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl): Declare. (struct symbol_computed_ops): Add location_has_loclist. (struct symbol_block_ops): New. (SYMBOL_BLOCK_OPS): New. * xcoffread.c (process_xcoff_symbol): Set SYMBOL_ACLASS_INDEX.
2013-03-20 18:33:05 +00:00
if (SYMBOL_BLOCK_OPS (framefunc) != NULL)
{
2013-03-20 Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> PR symtab/8421: * coffread.c (coff_register_index): New global. (process_coff_symbol, coff_read_enum_type): Set SYMBOL_ACLASS_INDEX. (_initialize_coffread): Initialize new global. * dwarf2loc.c (locexpr_find_frame_base_location) (dwarf2_block_frame_base_locexpr_funcs) (loclist_find_frame_base_location) (dwarf2_block_frame_base_loclist_funcs): New. (dwarf_expr_frame_base_1): Call SYMBOL_BLOCK_OPS, remove internal_error. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Add location_has_loclist. * dwarf2loc.h (dwarf2_block_frame_base_locexpr_funcs) (dwarf2_block_frame_base_loclist_funcs): New. * dwarf2read.c (dwarf2_locexpr_index, dwarf2_loclist_index) (dwarf2_locexpr_block_index, dwarf2_loclist_block_index): New globals. (read_func_scope): Update. (fixup_go_packaging, mark_common_block_symbol_computed) (var_decode_location, new_symbol_full, dwarf2_const_value): Set SYMBOL_ACLASS_INDEX. (dwarf2_symbol_mark_computed): Likewise. Add 'is_block' argument. (_initialize_dwarf2_read): Initialize new globals. * jit.c (finalize_symtab): Set SYMBOL_ACLASS_INDEX. * jv-lang.c (add_class_symbol): Set SYMBOL_ACLASS_INDEX. * mdebugread.c (mdebug_register_index, mdebug_regparm_index): New globals. (parse_symbol, psymtab_to_symtab_1): Set SYMBOL_ACLASS_INDEX. (_initialize_mdebugread): Initialize new globals. * psympriv.h (struct partial_symbol) <aclass>: Update comment. * stabsread.c (patch_block_stabs): Set SYMBOL_ACLASS_INDEX. (stab_register_index, stab_regparm_index): New globals. (define_symbol, read_enum_type, common_block_end): Set SYMBOL_ACLASS_INDEX. (_initialize_stabsread): Initialize new globals. * symtab.c (next_aclass_value, symbol_impl, symbol_impls): New globals. (MAX_SYMBOL_IMPLS): New define. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl) (initialize_ordinary_address_classes): New functions. (_initialize_symtab): Call initialize_ordinary_address_classes. * symtab.h (enum address_class) <LOC_FINAL_VALUE>: New constant. (struct symbol_impl): New. (SYMBOL_ACLASS_BITS): New define. (struct symbol) <aclass, ops>: Remove fields. <aclass_index>: New field. (symbol_impls): Declare. (SYMBOL_CLASS, SYMBOL_COMPUTED_OPS, SYMBOL_REGISTER_OPS): Redefine. (SYMBOL_IMPL, SYMBOL_ACLASS_INDEX): New defines. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl): Declare. (struct symbol_computed_ops): Add location_has_loclist. (struct symbol_block_ops): New. (SYMBOL_BLOCK_OPS): New. * xcoffread.c (process_xcoff_symbol): Set SYMBOL_ACLASS_INDEX.
2013-03-20 18:33:05 +00:00
const struct symbol_block_ops *ops_block = SYMBOL_BLOCK_OPS (framefunc);
2013-03-20 Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> PR symtab/8421: * coffread.c (coff_register_index): New global. (process_coff_symbol, coff_read_enum_type): Set SYMBOL_ACLASS_INDEX. (_initialize_coffread): Initialize new global. * dwarf2loc.c (locexpr_find_frame_base_location) (dwarf2_block_frame_base_locexpr_funcs) (loclist_find_frame_base_location) (dwarf2_block_frame_base_loclist_funcs): New. (dwarf_expr_frame_base_1): Call SYMBOL_BLOCK_OPS, remove internal_error. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Add location_has_loclist. * dwarf2loc.h (dwarf2_block_frame_base_locexpr_funcs) (dwarf2_block_frame_base_loclist_funcs): New. * dwarf2read.c (dwarf2_locexpr_index, dwarf2_loclist_index) (dwarf2_locexpr_block_index, dwarf2_loclist_block_index): New globals. (read_func_scope): Update. (fixup_go_packaging, mark_common_block_symbol_computed) (var_decode_location, new_symbol_full, dwarf2_const_value): Set SYMBOL_ACLASS_INDEX. (dwarf2_symbol_mark_computed): Likewise. Add 'is_block' argument. (_initialize_dwarf2_read): Initialize new globals. * jit.c (finalize_symtab): Set SYMBOL_ACLASS_INDEX. * jv-lang.c (add_class_symbol): Set SYMBOL_ACLASS_INDEX. * mdebugread.c (mdebug_register_index, mdebug_regparm_index): New globals. (parse_symbol, psymtab_to_symtab_1): Set SYMBOL_ACLASS_INDEX. (_initialize_mdebugread): Initialize new globals. * psympriv.h (struct partial_symbol) <aclass>: Update comment. * stabsread.c (patch_block_stabs): Set SYMBOL_ACLASS_INDEX. (stab_register_index, stab_regparm_index): New globals. (define_symbol, read_enum_type, common_block_end): Set SYMBOL_ACLASS_INDEX. (_initialize_stabsread): Initialize new globals. * symtab.c (next_aclass_value, symbol_impl, symbol_impls): New globals. (MAX_SYMBOL_IMPLS): New define. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl) (initialize_ordinary_address_classes): New functions. (_initialize_symtab): Call initialize_ordinary_address_classes. * symtab.h (enum address_class) <LOC_FINAL_VALUE>: New constant. (struct symbol_impl): New. (SYMBOL_ACLASS_BITS): New define. (struct symbol) <aclass, ops>: Remove fields. <aclass_index>: New field. (symbol_impls): Declare. (SYMBOL_CLASS, SYMBOL_COMPUTED_OPS, SYMBOL_REGISTER_OPS): Redefine. (SYMBOL_IMPL, SYMBOL_ACLASS_INDEX): New defines. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl): Declare. (struct symbol_computed_ops): Add location_has_loclist. (struct symbol_block_ops): New. (SYMBOL_BLOCK_OPS): New. * xcoffread.c (process_xcoff_symbol): Set SYMBOL_ACLASS_INDEX.
2013-03-20 18:33:05 +00:00
ops_block->find_frame_base_location (framefunc, pc, start, length);
}
else
2013-03-20 Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> PR symtab/8421: * coffread.c (coff_register_index): New global. (process_coff_symbol, coff_read_enum_type): Set SYMBOL_ACLASS_INDEX. (_initialize_coffread): Initialize new global. * dwarf2loc.c (locexpr_find_frame_base_location) (dwarf2_block_frame_base_locexpr_funcs) (loclist_find_frame_base_location) (dwarf2_block_frame_base_loclist_funcs): New. (dwarf_expr_frame_base_1): Call SYMBOL_BLOCK_OPS, remove internal_error. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Add location_has_loclist. * dwarf2loc.h (dwarf2_block_frame_base_locexpr_funcs) (dwarf2_block_frame_base_loclist_funcs): New. * dwarf2read.c (dwarf2_locexpr_index, dwarf2_loclist_index) (dwarf2_locexpr_block_index, dwarf2_loclist_block_index): New globals. (read_func_scope): Update. (fixup_go_packaging, mark_common_block_symbol_computed) (var_decode_location, new_symbol_full, dwarf2_const_value): Set SYMBOL_ACLASS_INDEX. (dwarf2_symbol_mark_computed): Likewise. Add 'is_block' argument. (_initialize_dwarf2_read): Initialize new globals. * jit.c (finalize_symtab): Set SYMBOL_ACLASS_INDEX. * jv-lang.c (add_class_symbol): Set SYMBOL_ACLASS_INDEX. * mdebugread.c (mdebug_register_index, mdebug_regparm_index): New globals. (parse_symbol, psymtab_to_symtab_1): Set SYMBOL_ACLASS_INDEX. (_initialize_mdebugread): Initialize new globals. * psympriv.h (struct partial_symbol) <aclass>: Update comment. * stabsread.c (patch_block_stabs): Set SYMBOL_ACLASS_INDEX. (stab_register_index, stab_regparm_index): New globals. (define_symbol, read_enum_type, common_block_end): Set SYMBOL_ACLASS_INDEX. (_initialize_stabsread): Initialize new globals. * symtab.c (next_aclass_value, symbol_impl, symbol_impls): New globals. (MAX_SYMBOL_IMPLS): New define. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl) (initialize_ordinary_address_classes): New functions. (_initialize_symtab): Call initialize_ordinary_address_classes. * symtab.h (enum address_class) <LOC_FINAL_VALUE>: New constant. (struct symbol_impl): New. (SYMBOL_ACLASS_BITS): New define. (struct symbol) <aclass, ops>: Remove fields. <aclass_index>: New field. (symbol_impls): Declare. (SYMBOL_CLASS, SYMBOL_COMPUTED_OPS, SYMBOL_REGISTER_OPS): Redefine. (SYMBOL_IMPL, SYMBOL_ACLASS_INDEX): New defines. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl): Declare. (struct symbol_computed_ops): Add location_has_loclist. (struct symbol_block_ops): New. (SYMBOL_BLOCK_OPS): New. * xcoffread.c (process_xcoff_symbol): Set SYMBOL_ACLASS_INDEX.
2013-03-20 18:33:05 +00:00
*length = 0;
if (*length == 0)
2005-02-10 Andrew Cagney <cagney@gnu.org> Mark up all error and warning messages. * ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update. * bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update. * core-aout.c, core-regset.c, corefile.c, corelow.c: Update. * cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update. * dbxread.c, demangle.c, doublest.c, dsrec.c: Update. * dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update. * dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update. * event-top.c, exec.c, expprint.c, f-lang.c: Update. * f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update. * frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update. * gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update. * hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update. * hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update. * hpread.c, hpux-thread.c, i386-linux-nat.c: Update. * i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update. * i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update. * ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update. * infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update. * inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update. * kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update. * linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update. * m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update. * m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update. * maint.c, mdebugread.c, mem-break.c, memattr.c: Update. * mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update. * nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update. * observer.c, ocd.c, p-lang.c, p-typeprint.c: Update. * p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update. * ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update. * remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update. * remote-rdp.c, remote-sim.c, remote-st.c: Update. * remote-utils.c, remote-utils.h, remote.c: Update. * rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update. * ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update. * sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update. * solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update. * solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update. * somread.c, somsolib.c, source.c, stabsread.c: Update. * stack.c, std-regs.c, symfile-mem.c, symfile.c: Update. * symmisc.c, symtab.c, target.c, thread.c, top.c: Update. * tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update. * uw-thread.c, valarith.c, valops.c, valprint.c: Update. * value.c, varobj.c, version.in, win32-nat.c, wince.c: Update. * xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update. * cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update. * cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update. * mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update. * mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update. * mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update. * tui/tui-win.c: Update.
2005-02-11 04:06:14 +00:00
error (_("Could not find the frame base for \"%s\"."),
SYMBOL_NATURAL_NAME (framefunc));
}
/* Helper function for dwarf2_evaluate_loc_desc. Computes the CFA for
the frame in BATON. */
static CORE_ADDR
dwarf_expr_frame_cfa (void *baton)
{
struct dwarf_expr_baton *debaton = (struct dwarf_expr_baton *) baton;
return dwarf2_frame_cfa (debaton->frame);
}
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
/* Helper function for dwarf2_evaluate_loc_desc. Computes the PC for
the frame in BATON. */
static CORE_ADDR
dwarf_expr_frame_pc (void *baton)
{
struct dwarf_expr_baton *debaton = (struct dwarf_expr_baton *) baton;
return get_frame_address_in_block (debaton->frame);
}
/* Using the objfile specified in BATON, find the address for the
current thread's thread-local storage with offset OFFSET. */
static CORE_ADDR
dwarf_expr_tls_address (void *baton, CORE_ADDR offset)
{
struct dwarf_expr_baton *debaton = (struct dwarf_expr_baton *) baton;
struct objfile *objfile = dwarf2_per_cu_objfile (debaton->per_cu);
return target_translate_tls_address (objfile, offset);
}
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 22:22:53 +00:00
/* Call DWARF subroutine from DW_AT_location of DIE at DIE_OFFSET in
current CU (as is PER_CU). State of the CTX is not affected by the
call and return. */
static void
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
per_cu_dwarf_call (struct dwarf_expr_context *ctx, cu_offset die_offset,
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
struct dwarf2_per_cu_data *per_cu,
CORE_ADDR (*get_frame_pc) (void *baton),
void *baton)
{
struct dwarf2_locexpr_baton block;
block = dwarf2_fetch_die_loc_cu_off (die_offset, per_cu, get_frame_pc, baton);
/* DW_OP_call_ref is currently not supported. */
gdb_assert (block.per_cu == per_cu);
dwarf_expr_eval (ctx, block.data, block.size);
}
/* Helper interface of per_cu_dwarf_call for dwarf2_evaluate_loc_desc. */
static void
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
dwarf_expr_dwarf_call (struct dwarf_expr_context *ctx, cu_offset die_offset)
{
struct dwarf_expr_baton *debaton = ctx->baton;
per_cu_dwarf_call (ctx, die_offset, debaton->per_cu,
ctx->funcs->get_frame_pc, ctx->baton);
}
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
/* Callback function for dwarf2_evaluate_loc_desc. */
static struct type *
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
dwarf_expr_get_base_type (struct dwarf_expr_context *ctx,
cu_offset die_offset)
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
{
struct dwarf_expr_baton *debaton = ctx->baton;
return dwarf2_get_die_type (die_offset, debaton->per_cu);
}
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
/* See dwarf2loc.h. */
gdb/ * dwarf2loc.c (entry_values_debug): Add 'unsigned'. (_initialize_dwarf2loc): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * dwarf2loc.h: Update the declaration of 'entry_values_debug'. * dwarf2read.c (dwarf2_die_debug): Add 'unsigned'. (_initialize_dwarf2_read): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * darwin-nat.c (dwarwin_debug_flag): Add 'unsigned'. (_initialize_darwin_inferior): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * frame.c (frame_debug): Add 'unsigned'. (_intialize_frame): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * frame.h: Update the declaration of 'frame_debug'. * gdbtypes.c (overload_debug): Add 'unsigned'. (_initialize_gdbtypes): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * inferior.h: Update declaration of 'debug_infrun'. * infrun.c (debug_infrun): Add 'unsigned'. (_initialize_infrun): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * jit.c (jit_debug): Add 'unsigned'. (_initialize_jit): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * linux-nat.c (debug_linux_nat): Add 'unsigned'. (_initialize_linux_nat): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * linux-thread-db.c (libthread_db_debug): Add 'unsigned'. (_initialize_thread_db): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * machoread.c (mach_o_debug_level): Add 'unsigned'. (_initialize_machoread): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * mi/mi-cmd-var.c: Update the declaration of 'varobjdebug'. * microblaze-tdep.c (microblaze_debug_flag): Add 'unsigned'. (_initialize_microblaze_tdep): Call add_setshow_zuinteger_cmd intead of add_setshow_zinteger_cmd. * mips-tdep.c (mips_debug): Add 'unsigned'. (_initialize_mips_tdep): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * monitor.c (monitor_debug): Add 'unsigned'. (_initialize_remote_monitors): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * observer.c (observer_debug): Add 'unsigned'. (_initialize_observer): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * parse.c (expressiondebug): Add 'unsigned'. (_initialize_parse): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * record.c (record_debug): Add 'unsigned'. (_initialize_record): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * record.h: Update the declaration of 'record_debug'. * stap-probe.c (stap_expression_debug): Add 'unsigned'. (_initialize_stap_probe): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * serial.c (global_serial_debug_p): Add 'unsigned'. (_initialize_serial): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * solib-dsbt.c (solib_dsbt_debug): Add 'unsigned'. (_initialize_dsbt_solib): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * solib-frv.c (solib_frv_debug): Add 'unsigned'. (_initialize_frv_solib): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * target.c (targetdebug): Add 'unsigned'. (initialize_targets): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * valops.c (overload_debug): Add 'unsigned'. * varobj.c (varobjdebug): Add 'unsigned'. (_initialize_varobj): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * xtensa-tdep.c (xtensa_debug_level): Add 'unsigned'. (_initialize_xtensa_tdep): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * arch-utils.h: Remove the declaration of 'gdbarch_debug'. * gdbarch.sh (gdbarch_debug): Add 'unsigned'. (extern void _initialize_gdbarch): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * gdbarch.c, gdbarch.h: Re-generated.
2012-08-02 09:36:40 +00:00
unsigned int entry_values_debug = 0;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
/* Helper to set entry_values_debug. */
static void
show_entry_values_debug (struct ui_file *file, int from_tty,
struct cmd_list_element *c, const char *value)
{
fprintf_filtered (file,
_("Entry values and tail call frames debugging is %s.\n"),
value);
}
/* Find DW_TAG_GNU_call_site's DW_AT_GNU_call_site_target address.
CALLER_FRAME (for registers) can be NULL if it is not known. This function
always returns valid address or it throws NO_ENTRY_VALUE_ERROR. */
static CORE_ADDR
call_site_to_target_addr (struct gdbarch *call_site_gdbarch,
struct call_site *call_site,
struct frame_info *caller_frame)
{
switch (FIELD_LOC_KIND (call_site->target))
{
case FIELD_LOC_KIND_DWARF_BLOCK:
{
struct dwarf2_locexpr_baton *dwarf_block;
struct value *val;
struct type *caller_core_addr_type;
struct gdbarch *caller_arch;
dwarf_block = FIELD_DWARF_BLOCK (call_site->target);
if (dwarf_block == NULL)
{
struct bound_minimal_symbol msym;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
msym = lookup_minimal_symbol_by_pc (call_site->pc - 1);
throw_error (NO_ENTRY_VALUE_ERROR,
_("DW_AT_GNU_call_site_target is not specified "
"at %s in %s"),
paddress (call_site_gdbarch, call_site->pc),
(msym.minsym == NULL ? "???"
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
: MSYMBOL_PRINT_NAME (msym.minsym)));
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
}
if (caller_frame == NULL)
{
struct bound_minimal_symbol msym;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
msym = lookup_minimal_symbol_by_pc (call_site->pc - 1);
throw_error (NO_ENTRY_VALUE_ERROR,
_("DW_AT_GNU_call_site_target DWARF block resolving "
"requires known frame which is currently not "
"available at %s in %s"),
paddress (call_site_gdbarch, call_site->pc),
(msym.minsym == NULL ? "???"
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
: MSYMBOL_PRINT_NAME (msym.minsym)));
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
}
caller_arch = get_frame_arch (caller_frame);
caller_core_addr_type = builtin_type (caller_arch)->builtin_func_ptr;
val = dwarf2_evaluate_loc_desc (caller_core_addr_type, caller_frame,
dwarf_block->data, dwarf_block->size,
dwarf_block->per_cu);
/* DW_AT_GNU_call_site_target is a DWARF expression, not a DWARF
location. */
if (VALUE_LVAL (val) == lval_memory)
return value_address (val);
else
return value_as_address (val);
}
case FIELD_LOC_KIND_PHYSNAME:
{
const char *physname;
use bound_minsym as result for lookup_minimal_symbol et al This patch changes a few minimal symbol lookup functions to return a bound_minimal_symbol rather than a pointer to the minsym. This change helps prepare gdb for computing a minimal symbol's address at the point of use. Note that this changes even those functions that ostensibly search a single objfile. That was necessary because, in fact, those functions can search an objfile and its separate debug objfiles; and it is important for the caller to know in which objfile the minimal symbol was actually found. The bulk of this patch is mechanical. 2014-02-26 Tom Tromey <tromey@redhat.com> * ada-lang.c (ada_update_initial_language): Update. (ada_main_name, ada_has_this_exception_support): Update. * ada-tasks.c (ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * arm-tdep.c (arm_skip_stub): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * breakpoint.c (struct breakpoint_objfile_data) <overlay_msym, longjmp_msym, terminate_msym, exception_msym>: Change type to bound_minimal_symbol. (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * c-exp.y (classify_name): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * d-lang.c (d_main_name): Update. * dbxread.c (find_stab_function_addr, end_psymtab): Update. * dec-thread.c (enable_dec_thread): Update. * dwarf2loc.c (call_site_to_target_addr): Update. * elfread.c (elf_gnu_ifunc_resolve_by_got): Update. * eval.c (evaluate_subexp_standard): Update. * findvar.c (struct minsym_lookup_data) <result>: Change type to bound_minimal_symbol. <objfile>: Remove. (minsym_lookup_iterator_cb, default_read_var_value): Update. * frame.c (inside_main_func): Update. * frv-tdep.c (frv_frame_this_id): Update. * gcore.c (call_target_sbrk): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v3-abi.c (gnuv3_get_typeid, gnuv3_skip_trampoline): Update. * go-lang.c (go_main_name): Update. * hppa-hpux-tdep.c (hppa_hpux_skip_trampoline_code) (hppa_hpux_find_import_stub_for_addr): Update. * hppa-tdep.c (hppa_extract_17, hppa_lookup_stub_minimal_symbol): Update. Change return type. * hppa-tdep.h (hppa_lookup_stub_minimal_symbol): Change return type. * jit.c (jit_breakpoint_re_set_internal): Update. * linux-fork.c (inferior_call_waitpid, checkpoint_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update * m32c-tdep.c (m32c_return_value) (m32c_m16c_address_to_pointer): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * minsyms.c (lookup_minimal_symbol_internal): Rename to lookup_minimal_symbol. Change return type. (lookup_minimal_symbol): Remove. (lookup_bound_minimal_symbol): Update. (lookup_minimal_symbol_text): Change return type. (lookup_minimal_symbol_solib_trampoline): Change return type. * minsyms.h (lookup_minimal_symbol, lookup_minimal_symbol_text) (lookup_minimal_symbol_solib_trampoline): Change return type. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * objc-lang.c (lookup_objc_class, lookup_child_selector) (value_nsstring, find_imps): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-lang.c (pascal_main_name): Update. * ppc-linux-tdep.c (ppc_linux_spe_context_lookup): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * proc-service.c (ps_pglobal_lookup): Update. * ravenscar-thread.c (get_running_thread_msymbol): Change return type. (has_ravenscar_runtime, get_running_thread_id): Update. * remote.c (remote_check_symbols): Update. * sol-thread.c (ps_pglobal_lookup): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base, frv_relocate_section_addresses): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook) (som_solib_desire_dynamic_linker_symbols, link_map_start): Update. * solib-spu.c (spu_enable_break): Update. * solib-svr4.c (elf_locate_base, enable_break): Update. * spu-tdep.c (spu_get_overlay_table, spu_catch_start) (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. * symfile.c (simple_read_overlay_table): Update. * symtab.c (find_pc_sect_line): Update. * tracepoint.c (scope_info): Update. * tui-disasm.c (tui_get_begin_asm_address): Update. * value.c (value_static_field): Update.
2013-10-15 01:53:29 +00:00
struct bound_minimal_symbol msym;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
physname = FIELD_STATIC_PHYSNAME (call_site->target);
/* Handle both the mangled and demangled PHYSNAME. */
msym = lookup_minimal_symbol (physname, NULL, NULL);
use bound_minsym as result for lookup_minimal_symbol et al This patch changes a few minimal symbol lookup functions to return a bound_minimal_symbol rather than a pointer to the minsym. This change helps prepare gdb for computing a minimal symbol's address at the point of use. Note that this changes even those functions that ostensibly search a single objfile. That was necessary because, in fact, those functions can search an objfile and its separate debug objfiles; and it is important for the caller to know in which objfile the minimal symbol was actually found. The bulk of this patch is mechanical. 2014-02-26 Tom Tromey <tromey@redhat.com> * ada-lang.c (ada_update_initial_language): Update. (ada_main_name, ada_has_this_exception_support): Update. * ada-tasks.c (ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * arm-tdep.c (arm_skip_stub): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * breakpoint.c (struct breakpoint_objfile_data) <overlay_msym, longjmp_msym, terminate_msym, exception_msym>: Change type to bound_minimal_symbol. (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * c-exp.y (classify_name): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * d-lang.c (d_main_name): Update. * dbxread.c (find_stab_function_addr, end_psymtab): Update. * dec-thread.c (enable_dec_thread): Update. * dwarf2loc.c (call_site_to_target_addr): Update. * elfread.c (elf_gnu_ifunc_resolve_by_got): Update. * eval.c (evaluate_subexp_standard): Update. * findvar.c (struct minsym_lookup_data) <result>: Change type to bound_minimal_symbol. <objfile>: Remove. (minsym_lookup_iterator_cb, default_read_var_value): Update. * frame.c (inside_main_func): Update. * frv-tdep.c (frv_frame_this_id): Update. * gcore.c (call_target_sbrk): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v3-abi.c (gnuv3_get_typeid, gnuv3_skip_trampoline): Update. * go-lang.c (go_main_name): Update. * hppa-hpux-tdep.c (hppa_hpux_skip_trampoline_code) (hppa_hpux_find_import_stub_for_addr): Update. * hppa-tdep.c (hppa_extract_17, hppa_lookup_stub_minimal_symbol): Update. Change return type. * hppa-tdep.h (hppa_lookup_stub_minimal_symbol): Change return type. * jit.c (jit_breakpoint_re_set_internal): Update. * linux-fork.c (inferior_call_waitpid, checkpoint_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update * m32c-tdep.c (m32c_return_value) (m32c_m16c_address_to_pointer): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * minsyms.c (lookup_minimal_symbol_internal): Rename to lookup_minimal_symbol. Change return type. (lookup_minimal_symbol): Remove. (lookup_bound_minimal_symbol): Update. (lookup_minimal_symbol_text): Change return type. (lookup_minimal_symbol_solib_trampoline): Change return type. * minsyms.h (lookup_minimal_symbol, lookup_minimal_symbol_text) (lookup_minimal_symbol_solib_trampoline): Change return type. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * objc-lang.c (lookup_objc_class, lookup_child_selector) (value_nsstring, find_imps): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-lang.c (pascal_main_name): Update. * ppc-linux-tdep.c (ppc_linux_spe_context_lookup): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * proc-service.c (ps_pglobal_lookup): Update. * ravenscar-thread.c (get_running_thread_msymbol): Change return type. (has_ravenscar_runtime, get_running_thread_id): Update. * remote.c (remote_check_symbols): Update. * sol-thread.c (ps_pglobal_lookup): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base, frv_relocate_section_addresses): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook) (som_solib_desire_dynamic_linker_symbols, link_map_start): Update. * solib-spu.c (spu_enable_break): Update. * solib-svr4.c (elf_locate_base, enable_break): Update. * spu-tdep.c (spu_get_overlay_table, spu_catch_start) (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. * symfile.c (simple_read_overlay_table): Update. * symtab.c (find_pc_sect_line): Update. * tracepoint.c (scope_info): Update. * tui-disasm.c (tui_get_begin_asm_address): Update. * value.c (value_static_field): Update.
2013-10-15 01:53:29 +00:00
if (msym.minsym == NULL)
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
{
use bound_minsym as result for lookup_minimal_symbol et al This patch changes a few minimal symbol lookup functions to return a bound_minimal_symbol rather than a pointer to the minsym. This change helps prepare gdb for computing a minimal symbol's address at the point of use. Note that this changes even those functions that ostensibly search a single objfile. That was necessary because, in fact, those functions can search an objfile and its separate debug objfiles; and it is important for the caller to know in which objfile the minimal symbol was actually found. The bulk of this patch is mechanical. 2014-02-26 Tom Tromey <tromey@redhat.com> * ada-lang.c (ada_update_initial_language): Update. (ada_main_name, ada_has_this_exception_support): Update. * ada-tasks.c (ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * arm-tdep.c (arm_skip_stub): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * breakpoint.c (struct breakpoint_objfile_data) <overlay_msym, longjmp_msym, terminate_msym, exception_msym>: Change type to bound_minimal_symbol. (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * c-exp.y (classify_name): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * d-lang.c (d_main_name): Update. * dbxread.c (find_stab_function_addr, end_psymtab): Update. * dec-thread.c (enable_dec_thread): Update. * dwarf2loc.c (call_site_to_target_addr): Update. * elfread.c (elf_gnu_ifunc_resolve_by_got): Update. * eval.c (evaluate_subexp_standard): Update. * findvar.c (struct minsym_lookup_data) <result>: Change type to bound_minimal_symbol. <objfile>: Remove. (minsym_lookup_iterator_cb, default_read_var_value): Update. * frame.c (inside_main_func): Update. * frv-tdep.c (frv_frame_this_id): Update. * gcore.c (call_target_sbrk): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v3-abi.c (gnuv3_get_typeid, gnuv3_skip_trampoline): Update. * go-lang.c (go_main_name): Update. * hppa-hpux-tdep.c (hppa_hpux_skip_trampoline_code) (hppa_hpux_find_import_stub_for_addr): Update. * hppa-tdep.c (hppa_extract_17, hppa_lookup_stub_minimal_symbol): Update. Change return type. * hppa-tdep.h (hppa_lookup_stub_minimal_symbol): Change return type. * jit.c (jit_breakpoint_re_set_internal): Update. * linux-fork.c (inferior_call_waitpid, checkpoint_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update * m32c-tdep.c (m32c_return_value) (m32c_m16c_address_to_pointer): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * minsyms.c (lookup_minimal_symbol_internal): Rename to lookup_minimal_symbol. Change return type. (lookup_minimal_symbol): Remove. (lookup_bound_minimal_symbol): Update. (lookup_minimal_symbol_text): Change return type. (lookup_minimal_symbol_solib_trampoline): Change return type. * minsyms.h (lookup_minimal_symbol, lookup_minimal_symbol_text) (lookup_minimal_symbol_solib_trampoline): Change return type. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * objc-lang.c (lookup_objc_class, lookup_child_selector) (value_nsstring, find_imps): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-lang.c (pascal_main_name): Update. * ppc-linux-tdep.c (ppc_linux_spe_context_lookup): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * proc-service.c (ps_pglobal_lookup): Update. * ravenscar-thread.c (get_running_thread_msymbol): Change return type. (has_ravenscar_runtime, get_running_thread_id): Update. * remote.c (remote_check_symbols): Update. * sol-thread.c (ps_pglobal_lookup): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base, frv_relocate_section_addresses): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook) (som_solib_desire_dynamic_linker_symbols, link_map_start): Update. * solib-spu.c (spu_enable_break): Update. * solib-svr4.c (elf_locate_base, enable_break): Update. * spu-tdep.c (spu_get_overlay_table, spu_catch_start) (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. * symfile.c (simple_read_overlay_table): Update. * symtab.c (find_pc_sect_line): Update. * tracepoint.c (scope_info): Update. * tui-disasm.c (tui_get_begin_asm_address): Update. * value.c (value_static_field): Update.
2013-10-15 01:53:29 +00:00
msym = lookup_minimal_symbol_by_pc (call_site->pc - 1);
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
throw_error (NO_ENTRY_VALUE_ERROR,
_("Cannot find function \"%s\" for a call site target "
"at %s in %s"),
physname, paddress (call_site_gdbarch, call_site->pc),
use bound_minsym as result for lookup_minimal_symbol et al This patch changes a few minimal symbol lookup functions to return a bound_minimal_symbol rather than a pointer to the minsym. This change helps prepare gdb for computing a minimal symbol's address at the point of use. Note that this changes even those functions that ostensibly search a single objfile. That was necessary because, in fact, those functions can search an objfile and its separate debug objfiles; and it is important for the caller to know in which objfile the minimal symbol was actually found. The bulk of this patch is mechanical. 2014-02-26 Tom Tromey <tromey@redhat.com> * ada-lang.c (ada_update_initial_language): Update. (ada_main_name, ada_has_this_exception_support): Update. * ada-tasks.c (ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * arm-tdep.c (arm_skip_stub): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * breakpoint.c (struct breakpoint_objfile_data) <overlay_msym, longjmp_msym, terminate_msym, exception_msym>: Change type to bound_minimal_symbol. (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * c-exp.y (classify_name): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * d-lang.c (d_main_name): Update. * dbxread.c (find_stab_function_addr, end_psymtab): Update. * dec-thread.c (enable_dec_thread): Update. * dwarf2loc.c (call_site_to_target_addr): Update. * elfread.c (elf_gnu_ifunc_resolve_by_got): Update. * eval.c (evaluate_subexp_standard): Update. * findvar.c (struct minsym_lookup_data) <result>: Change type to bound_minimal_symbol. <objfile>: Remove. (minsym_lookup_iterator_cb, default_read_var_value): Update. * frame.c (inside_main_func): Update. * frv-tdep.c (frv_frame_this_id): Update. * gcore.c (call_target_sbrk): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v3-abi.c (gnuv3_get_typeid, gnuv3_skip_trampoline): Update. * go-lang.c (go_main_name): Update. * hppa-hpux-tdep.c (hppa_hpux_skip_trampoline_code) (hppa_hpux_find_import_stub_for_addr): Update. * hppa-tdep.c (hppa_extract_17, hppa_lookup_stub_minimal_symbol): Update. Change return type. * hppa-tdep.h (hppa_lookup_stub_minimal_symbol): Change return type. * jit.c (jit_breakpoint_re_set_internal): Update. * linux-fork.c (inferior_call_waitpid, checkpoint_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update * m32c-tdep.c (m32c_return_value) (m32c_m16c_address_to_pointer): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * minsyms.c (lookup_minimal_symbol_internal): Rename to lookup_minimal_symbol. Change return type. (lookup_minimal_symbol): Remove. (lookup_bound_minimal_symbol): Update. (lookup_minimal_symbol_text): Change return type. (lookup_minimal_symbol_solib_trampoline): Change return type. * minsyms.h (lookup_minimal_symbol, lookup_minimal_symbol_text) (lookup_minimal_symbol_solib_trampoline): Change return type. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * objc-lang.c (lookup_objc_class, lookup_child_selector) (value_nsstring, find_imps): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-lang.c (pascal_main_name): Update. * ppc-linux-tdep.c (ppc_linux_spe_context_lookup): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * proc-service.c (ps_pglobal_lookup): Update. * ravenscar-thread.c (get_running_thread_msymbol): Change return type. (has_ravenscar_runtime, get_running_thread_id): Update. * remote.c (remote_check_symbols): Update. * sol-thread.c (ps_pglobal_lookup): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base, frv_relocate_section_addresses): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook) (som_solib_desire_dynamic_linker_symbols, link_map_start): Update. * solib-spu.c (spu_enable_break): Update. * solib-svr4.c (elf_locate_base, enable_break): Update. * spu-tdep.c (spu_get_overlay_table, spu_catch_start) (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. * symfile.c (simple_read_overlay_table): Update. * symtab.c (find_pc_sect_line): Update. * tracepoint.c (scope_info): Update. * tui-disasm.c (tui_get_begin_asm_address): Update. * value.c (value_static_field): Update.
2013-10-15 01:53:29 +00:00
(msym.minsym == NULL ? "???"
: MSYMBOL_PRINT_NAME (msym.minsym)));
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
}
start change to progspace independence This patch starts changing minimal symbols to be independent of the program space. Specifically, it adds a new objfile parameter to MSYMBOL_VALUE_ADDRESS and changes all the code to use it. This is needed so we can change gdb to apply the section offset when a minsym's address is computed, as opposed to baking the offsets into the symbol itself. A few spots still need the unrelocated address. For these, we introduce MSYMBOL_VALUE_RAW_ADDRESS. As a convenience, we also add the new macro BMSYMBOL_VALUE_ADDRESS, which computes the address of a bound minimal symbol. This just does the obvious thing with the fields. Note that this change does not actually enable program space independence. That requires more changes to gdb. However, to ensure that these changes compile properly, this patch does add the needed section lookup code to MSYMBOL_VALUE_ADDRESS -- it just ensures it has no effect at runtime by multiplying the offset by 0. 2014-02-26 Tom Tromey <tromey@redhat.com> * ada-lang.c (ada_main_name): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * arm-tdep.c (skip_prologue_function, arm_skip_stub): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * blockframe.c (get_pc_function_start) (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint) (create_longjmp_master_breakpoint) (create_std_terminate_master_breakpoint) (create_exception_master_breakpoint): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr, end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. * dwarf2read.c (dw2_find_pc_sect_symtab): Update. * elfread.c (elf_gnu_ifunc_record_cache) (elf_gnu_ifunc_resolve_by_got): Update. * findvar.c (default_read_var_value): Update. * frame.c (inside_main_func): Update. * frv-tdep.c (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v3-abi.c (gnuv3_get_typeid, gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa64_hpux_search_dummy_call_sequence) (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_read_descriptor, jit_breakpoint_re_set_internal): Update. * linespec.c (minsym_found, add_minsym): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value) (m32c_m16c_address_to_pointer): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (lookup_minimal_symbol_by_pc_name): Update. (frob_address): New function. (lookup_minimal_symbol_by_pc_section_1): Use raw addresses, frob_address. Rename parameter to "pc_in". (compare_minimal_symbols, compact_minimal_symbols): Use raw addresses. (find_solib_trampoline_target, minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_skip_pic_trampoline_code): Update. * objc-lang.c (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (ppc_linux_spe_context_lookup) (ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic, msym_info) (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer) (find_pc_sect_psymtab, find_pc_sect_symtab_from_partial): Change msymbol parameter to bound_minimal_symbol. * ravenscar-thread.c (get_running_thread_id): Update. * remote.c (remote_check_symbols): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Use raw address. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base, main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook) (link_map_start): Update. * solib-spu.c (spu_enable_break, ocl_enable_break): Update. * solib-svr4.c (elf_locate_base, enable_break): Update. * spu-tdep.c (spu_get_overlay_table, spu_catch_start) (flush_ea_cache): Update. * stabsread.c (define_symbol, scan_file_globals): Update. * stack.c (find_frame_funname): Update. * symfile-debug.c (debug_qf_expand_symtabs_matching) (debug_qf_find_pc_sect_symtab): Update. * symfile.c (simple_read_overlay_table) (simple_overlay_update): Update. * symfile.h (struct quick_symbol_functions) <find_pc_sect_symtab>: Change type of msymbol to bound_minimal_symbol. * symmisc.c (dump_msymbols): Update. * symtab.c (find_pc_sect_symtab_via_partial) (find_pc_sect_psymtab, find_pc_sect_line, skip_prologue_sal) (search_symbols, print_msymbol_info): Update. * symtab.h (MSYMBOL_VALUE_RAW_ADDRESS): New macro. (MSYMBOL_VALUE_ADDRESS): Redefine. (BMSYMBOL_VALUE_ADDRESS): New macro. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address) (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field, value_fn_field): Update.
2013-08-15 14:46:35 +00:00
return BMSYMBOL_VALUE_ADDRESS (msym);
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
}
case FIELD_LOC_KIND_PHYSADDR:
return FIELD_STATIC_PHYSADDR (call_site->target);
default:
internal_error (__FILE__, __LINE__, _("invalid call site target kind"));
}
}
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
/* Convert function entry point exact address ADDR to the function which is
compliant with TAIL_CALL_LIST_COMPLETE condition. Throw
NO_ENTRY_VALUE_ERROR otherwise. */
static struct symbol *
func_addr_to_tail_call_list (struct gdbarch *gdbarch, CORE_ADDR addr)
{
struct symbol *sym = find_pc_function (addr);
struct type *type;
if (sym == NULL || BLOCK_START (SYMBOL_BLOCK_VALUE (sym)) != addr)
throw_error (NO_ENTRY_VALUE_ERROR,
_("DW_TAG_GNU_call_site resolving failed to find function "
"name for address %s"),
paddress (gdbarch, addr));
type = SYMBOL_TYPE (sym);
gdb_assert (TYPE_CODE (type) == TYPE_CODE_FUNC);
gdb_assert (TYPE_SPECIFIC_FIELD (type) == TYPE_SPECIFIC_FUNC);
return sym;
}
/* Verify function with entry point exact address ADDR can never call itself
via its tail calls (incl. transitively). Throw NO_ENTRY_VALUE_ERROR if it
can call itself via tail calls.
If a funtion can tail call itself its entry value based parameters are
unreliable. There is no verification whether the value of some/all
parameters is unchanged through the self tail call, we expect if there is
a self tail call all the parameters can be modified. */
static void
func_verify_no_selftailcall (struct gdbarch *gdbarch, CORE_ADDR verify_addr)
{
struct obstack addr_obstack;
struct cleanup *old_chain;
CORE_ADDR addr;
/* Track here CORE_ADDRs which were already visited. */
htab_t addr_hash;
/* The verification is completely unordered. Track here function addresses
which still need to be iterated. */
VEC (CORE_ADDR) *todo = NULL;
obstack_init (&addr_obstack);
old_chain = make_cleanup_obstack_free (&addr_obstack);
addr_hash = htab_create_alloc_ex (64, core_addr_hash, core_addr_eq, NULL,
&addr_obstack, hashtab_obstack_allocate,
NULL);
make_cleanup_htab_delete (addr_hash);
make_cleanup (VEC_cleanup (CORE_ADDR), &todo);
VEC_safe_push (CORE_ADDR, todo, verify_addr);
while (!VEC_empty (CORE_ADDR, todo))
{
struct symbol *func_sym;
struct call_site *call_site;
addr = VEC_pop (CORE_ADDR, todo);
func_sym = func_addr_to_tail_call_list (gdbarch, addr);
for (call_site = TYPE_TAIL_CALL_LIST (SYMBOL_TYPE (func_sym));
call_site; call_site = call_site->tail_call_next)
{
CORE_ADDR target_addr;
void **slot;
/* CALLER_FRAME with registers is not available for tail-call jumped
frames. */
target_addr = call_site_to_target_addr (gdbarch, call_site, NULL);
if (target_addr == verify_addr)
{
struct bound_minimal_symbol msym;
msym = lookup_minimal_symbol_by_pc (verify_addr);
throw_error (NO_ENTRY_VALUE_ERROR,
_("DW_OP_GNU_entry_value resolving has found "
"function \"%s\" at %s can call itself via tail "
"calls"),
(msym.minsym == NULL ? "???"
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
: MSYMBOL_PRINT_NAME (msym.minsym)),
paddress (gdbarch, verify_addr));
}
slot = htab_find_slot (addr_hash, &target_addr, INSERT);
if (*slot == NULL)
{
*slot = obstack_copy (&addr_obstack, &target_addr,
sizeof (target_addr));
VEC_safe_push (CORE_ADDR, todo, target_addr);
}
}
}
do_cleanups (old_chain);
}
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
/* Print user readable form of CALL_SITE->PC to gdb_stdlog. Used only for
ENTRY_VALUES_DEBUG. */
static void
tailcall_dump (struct gdbarch *gdbarch, const struct call_site *call_site)
{
CORE_ADDR addr = call_site->pc;
struct bound_minimal_symbol msym = lookup_minimal_symbol_by_pc (addr - 1);
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
fprintf_unfiltered (gdb_stdlog, " %s(%s)", paddress (gdbarch, addr),
(msym.minsym == NULL ? "???"
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
: MSYMBOL_PRINT_NAME (msym.minsym)));
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
}
/* vec.h needs single word type name, typedef it. */
typedef struct call_site *call_sitep;
/* Define VEC (call_sitep) functions. */
DEF_VEC_P (call_sitep);
/* Intersect RESULTP with CHAIN to keep RESULTP unambiguous, keep in RESULTP
only top callers and bottom callees which are present in both. GDBARCH is
used only for ENTRY_VALUES_DEBUG. RESULTP is NULL after return if there are
no remaining possibilities to provide unambiguous non-trivial result.
RESULTP should point to NULL on the first (initialization) call. Caller is
responsible for xfree of any RESULTP data. */
static void
chain_candidate (struct gdbarch *gdbarch, struct call_site_chain **resultp,
VEC (call_sitep) *chain)
{
struct call_site_chain *result = *resultp;
long length = VEC_length (call_sitep, chain);
int callers, callees, idx;
if (result == NULL)
{
/* Create the initial chain containing all the passed PCs. */
result = xmalloc (sizeof (*result) + sizeof (*result->call_site)
* (length - 1));
result->length = length;
result->callers = result->callees = length;
if (!VEC_empty (call_sitep, chain))
memcpy (result->call_site, VEC_address (call_sitep, chain),
sizeof (*result->call_site) * length);
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
*resultp = result;
if (entry_values_debug)
{
fprintf_unfiltered (gdb_stdlog, "tailcall: initial:");
for (idx = 0; idx < length; idx++)
tailcall_dump (gdbarch, result->call_site[idx]);
fputc_unfiltered ('\n', gdb_stdlog);
}
return;
}
if (entry_values_debug)
{
fprintf_unfiltered (gdb_stdlog, "tailcall: compare:");
for (idx = 0; idx < length; idx++)
tailcall_dump (gdbarch, VEC_index (call_sitep, chain, idx));
fputc_unfiltered ('\n', gdb_stdlog);
}
/* Intersect callers. */
callers = min (result->callers, length);
for (idx = 0; idx < callers; idx++)
if (result->call_site[idx] != VEC_index (call_sitep, chain, idx))
{
result->callers = idx;
break;
}
/* Intersect callees. */
callees = min (result->callees, length);
for (idx = 0; idx < callees; idx++)
if (result->call_site[result->length - 1 - idx]
!= VEC_index (call_sitep, chain, length - 1 - idx))
{
result->callees = idx;
break;
}
if (entry_values_debug)
{
fprintf_unfiltered (gdb_stdlog, "tailcall: reduced:");
for (idx = 0; idx < result->callers; idx++)
tailcall_dump (gdbarch, result->call_site[idx]);
fputs_unfiltered (" |", gdb_stdlog);
for (idx = 0; idx < result->callees; idx++)
tailcall_dump (gdbarch, result->call_site[result->length
- result->callees + idx]);
fputc_unfiltered ('\n', gdb_stdlog);
}
if (result->callers == 0 && result->callees == 0)
{
/* There are no common callers or callees. It could be also a direct
call (which has length 0) with ambiguous possibility of an indirect
call - CALLERS == CALLEES == 0 is valid during the first allocation
but any subsequence processing of such entry means ambiguity. */
xfree (result);
*resultp = NULL;
return;
}
/* See call_site_find_chain_1 why there is no way to reach the bottom callee
PC again. In such case there must be two different code paths to reach
it, therefore some of the former determined intermediate PCs must differ
and the unambiguous chain gets shortened. */
gdb_assert (result->callers + result->callees < result->length);
}
/* Create and return call_site_chain for CALLER_PC and CALLEE_PC. All the
assumed frames between them use GDBARCH. Use depth first search so we can
keep single CHAIN of call_site's back to CALLER_PC. Function recursion
would have needless GDB stack overhead. Caller is responsible for xfree of
the returned result. Any unreliability results in thrown
NO_ENTRY_VALUE_ERROR. */
static struct call_site_chain *
call_site_find_chain_1 (struct gdbarch *gdbarch, CORE_ADDR caller_pc,
CORE_ADDR callee_pc)
{
CORE_ADDR save_callee_pc = callee_pc;
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
struct obstack addr_obstack;
struct cleanup *back_to_retval, *back_to_workdata;
struct call_site_chain *retval = NULL;
struct call_site *call_site;
/* Mark CALL_SITEs so we do not visit the same ones twice. */
htab_t addr_hash;
/* CHAIN contains only the intermediate CALL_SITEs. Neither CALLER_PC's
call_site nor any possible call_site at CALLEE_PC's function is there.
Any CALL_SITE in CHAIN will be iterated to its siblings - via
TAIL_CALL_NEXT. This is inappropriate for CALLER_PC's call_site. */
VEC (call_sitep) *chain = NULL;
/* We are not interested in the specific PC inside the callee function. */
callee_pc = get_pc_function_start (callee_pc);
if (callee_pc == 0)
throw_error (NO_ENTRY_VALUE_ERROR, _("Unable to find function for PC %s"),
paddress (gdbarch, save_callee_pc));
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
back_to_retval = make_cleanup (free_current_contents, &retval);
obstack_init (&addr_obstack);
back_to_workdata = make_cleanup_obstack_free (&addr_obstack);
addr_hash = htab_create_alloc_ex (64, core_addr_hash, core_addr_eq, NULL,
&addr_obstack, hashtab_obstack_allocate,
NULL);
make_cleanup_htab_delete (addr_hash);
make_cleanup (VEC_cleanup (call_sitep), &chain);
/* Do not push CALL_SITE to CHAIN. Push there only the first tail call site
at the target's function. All the possible tail call sites in the
target's function will get iterated as already pushed into CHAIN via their
TAIL_CALL_NEXT. */
call_site = call_site_for_pc (gdbarch, caller_pc);
while (call_site)
{
CORE_ADDR target_func_addr;
struct call_site *target_call_site;
/* CALLER_FRAME with registers is not available for tail-call jumped
frames. */
target_func_addr = call_site_to_target_addr (gdbarch, call_site, NULL);
if (target_func_addr == callee_pc)
{
chain_candidate (gdbarch, &retval, chain);
if (retval == NULL)
break;
/* There is no way to reach CALLEE_PC again as we would prevent
entering it twice as being already marked in ADDR_HASH. */
target_call_site = NULL;
}
else
{
struct symbol *target_func;
target_func = func_addr_to_tail_call_list (gdbarch, target_func_addr);
target_call_site = TYPE_TAIL_CALL_LIST (SYMBOL_TYPE (target_func));
}
do
{
/* Attempt to visit TARGET_CALL_SITE. */
if (target_call_site)
{
void **slot;
slot = htab_find_slot (addr_hash, &target_call_site->pc, INSERT);
if (*slot == NULL)
{
/* Successfully entered TARGET_CALL_SITE. */
*slot = &target_call_site->pc;
VEC_safe_push (call_sitep, chain, target_call_site);
break;
}
}
/* Backtrack (without revisiting the originating call_site). Try the
callers's sibling; if there isn't any try the callers's callers's
sibling etc. */
target_call_site = NULL;
while (!VEC_empty (call_sitep, chain))
{
call_site = VEC_pop (call_sitep, chain);
gdb_assert (htab_find_slot (addr_hash, &call_site->pc,
NO_INSERT) != NULL);
htab_remove_elt (addr_hash, &call_site->pc);
target_call_site = call_site->tail_call_next;
if (target_call_site)
break;
}
}
while (target_call_site);
if (VEC_empty (call_sitep, chain))
call_site = NULL;
else
call_site = VEC_last (call_sitep, chain);
}
if (retval == NULL)
{
struct bound_minimal_symbol msym_caller, msym_callee;
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
msym_caller = lookup_minimal_symbol_by_pc (caller_pc);
msym_callee = lookup_minimal_symbol_by_pc (callee_pc);
throw_error (NO_ENTRY_VALUE_ERROR,
_("There are no unambiguously determinable intermediate "
"callers or callees between caller function \"%s\" at %s "
"and callee function \"%s\" at %s"),
(msym_caller.minsym == NULL
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
? "???" : MSYMBOL_PRINT_NAME (msym_caller.minsym)),
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
paddress (gdbarch, caller_pc),
(msym_callee.minsym == NULL
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
? "???" : MSYMBOL_PRINT_NAME (msym_callee.minsym)),
gdb/ Recognize virtual tail call frames. * Makefile.in (SFILES): Add dwarf2-frame-tailcall.c. (HFILES_NO_SRCDIR): Add dwarf2-frame-tailcall.h. (COMMON_OBS): Add dwarf2-frame-tailcall.o. * dwarf2-frame-tailcall.c: New file. * dwarf2-frame-tailcall.h: New file. * dwarf2-frame.c: Include dwarf2-frame-tailcall.h. (execute_cfa_program): New function comment. Return INSN_PTR. Reset REGS.PREV only after CIE execution. (struct dwarf2_frame_cache): New field tailcall_cache. (dwarf2_frame_cache): New variables entry_pc, entry_cfa_sp_offset, entry_cfa_sp_offset_p and instr. Execute FDE instructions in two parts, try to find entry_cfa_sp_offset. Call dwarf2_tailcall_sniffer_first. (dwarf2_frame_prev_register): Call dwarf2_tailcall_prev_register_first when appropriate. (dwarf2_frame_dealloc_cache): New function. (dwarf2_frame_sniffer): Preinitialize cache by dwarf2_frame_cache. (dwarf2_frame_unwind): Install dwarf2_frame_dealloc_cache. (dwarf2_signal_frame_unwind): Do not install dwarf2_frame_dealloc_cache. (dwarf2_append_unwinders): Add dwarf2_tailcall_frame_unwind. (dwarf2_frame_cfa): Support also dwarf2_tailcall_frame_unwind. * dwarf2loc.c (func_addr_to_tail_call_list) (tailcall_dump, call_sitep, VEC (call_sitep), chain_candidate) (call_site_find_chain_1, call_site_find_chain): New. * dwarf2loc.h (struct call_site_chain): New. (call_site_find_chain): New declaration. * frame.c (get_frame_address_in_block): Support also TAILCALL_FRAME. * frame.h (enum frame_type): New entry TAILCALL_FRAME. * python/py-frame.c (gdbpy_initialize_frames): Add TAILCALL_FRAME. * stack.c (frame_info): Support also TAILCALL_FRAME. gdb/doc/ Recognize virtual tail call frames. * gdb.texinfo (Optimized Code): Add reference to Tail Call Frames. (Tail Call Frames): New node. (Frames In Python): Add gdb.TAILCALL_FRAME. gdb/testsuite/ Recognize virtual tail call frames. * gdb.arch/amd64-entry-value.cc (c, a, b, amb_z, amb_y, amb_x, amb) (amb_b, amb_a): New. (main): Call a and b. * gdb.arch/amd64-entry-value.exp (tailcall: breakhere, tailcall: bt) (tailcall: p i, tailcall: p j, set $sp0=$sp, up, p $sp0 == $sp, frame 3) (p $sp0 + sizeof (void *) == $sp, ambiguous: breakhere, ambiguous: bt): New tests.
2011-10-09 19:26:44 +00:00
paddress (gdbarch, callee_pc));
}
do_cleanups (back_to_workdata);
discard_cleanups (back_to_retval);
return retval;
}
/* Create and return call_site_chain for CALLER_PC and CALLEE_PC. All the
assumed frames between them use GDBARCH. If valid call_site_chain cannot be
constructed return NULL. Caller is responsible for xfree of the returned
result. */
struct call_site_chain *
call_site_find_chain (struct gdbarch *gdbarch, CORE_ADDR caller_pc,
CORE_ADDR callee_pc)
{
volatile struct gdb_exception e;
struct call_site_chain *retval = NULL;
TRY_CATCH (e, RETURN_MASK_ERROR)
{
retval = call_site_find_chain_1 (gdbarch, caller_pc, callee_pc);
}
if (e.reason < 0)
{
if (e.error == NO_ENTRY_VALUE_ERROR)
{
if (entry_values_debug)
exception_print (gdb_stdout, e);
return NULL;
}
else
throw_exception (e);
}
return retval;
}
/* Return 1 if KIND and KIND_U match PARAMETER. Return 0 otherwise. */
static int
call_site_parameter_matches (struct call_site_parameter *parameter,
enum call_site_parameter_kind kind,
union call_site_parameter_u kind_u)
{
if (kind == parameter->kind)
switch (kind)
{
case CALL_SITE_PARAMETER_DWARF_REG:
return kind_u.dwarf_reg == parameter->u.dwarf_reg;
case CALL_SITE_PARAMETER_FB_OFFSET:
return kind_u.fb_offset == parameter->u.fb_offset;
case CALL_SITE_PARAMETER_PARAM_OFFSET:
return kind_u.param_offset.cu_off == parameter->u.param_offset.cu_off;
}
return 0;
}
/* Fetch call_site_parameter from caller matching KIND and KIND_U.
FRAME is for callee.
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
Function always returns non-NULL, it throws NO_ENTRY_VALUE_ERROR
otherwise. */
static struct call_site_parameter *
dwarf_expr_reg_to_entry_parameter (struct frame_info *frame,
enum call_site_parameter_kind kind,
union call_site_parameter_u kind_u,
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
struct dwarf2_per_cu_data **per_cu_return)
{
CORE_ADDR func_addr, caller_pc;
struct gdbarch *gdbarch;
struct frame_info *caller_frame;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
struct call_site *call_site;
int iparams;
/* Initialize it just to avoid a GCC false warning. */
struct call_site_parameter *parameter = NULL;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
CORE_ADDR target_addr;
while (get_frame_type (frame) == INLINE_FRAME)
{
frame = get_prev_frame (frame);
gdb_assert (frame != NULL);
}
func_addr = get_frame_func (frame);
gdbarch = get_frame_arch (frame);
caller_frame = get_prev_frame (frame);
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
if (gdbarch != frame_unwind_arch (frame))
{
struct bound_minimal_symbol msym
= lookup_minimal_symbol_by_pc (func_addr);
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
struct gdbarch *caller_gdbarch = frame_unwind_arch (frame);
throw_error (NO_ENTRY_VALUE_ERROR,
_("DW_OP_GNU_entry_value resolving callee gdbarch %s "
"(of %s (%s)) does not match caller gdbarch %s"),
gdbarch_bfd_arch_info (gdbarch)->printable_name,
paddress (gdbarch, func_addr),
(msym.minsym == NULL ? "???"
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
: MSYMBOL_PRINT_NAME (msym.minsym)),
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
gdbarch_bfd_arch_info (caller_gdbarch)->printable_name);
}
if (caller_frame == NULL)
{
struct bound_minimal_symbol msym
= lookup_minimal_symbol_by_pc (func_addr);
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
throw_error (NO_ENTRY_VALUE_ERROR, _("DW_OP_GNU_entry_value resolving "
"requires caller of %s (%s)"),
paddress (gdbarch, func_addr),
(msym.minsym == NULL ? "???"
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
: MSYMBOL_PRINT_NAME (msym.minsym)));
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
}
caller_pc = get_frame_pc (caller_frame);
call_site = call_site_for_pc (gdbarch, caller_pc);
target_addr = call_site_to_target_addr (gdbarch, call_site, caller_frame);
if (target_addr != func_addr)
{
struct minimal_symbol *target_msym, *func_msym;
target_msym = lookup_minimal_symbol_by_pc (target_addr).minsym;
func_msym = lookup_minimal_symbol_by_pc (func_addr).minsym;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
throw_error (NO_ENTRY_VALUE_ERROR,
_("DW_OP_GNU_entry_value resolving expects callee %s at %s "
"but the called frame is for %s at %s"),
(target_msym == NULL ? "???"
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
: MSYMBOL_PRINT_NAME (target_msym)),
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
paddress (gdbarch, target_addr),
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
func_msym == NULL ? "???" : MSYMBOL_PRINT_NAME (func_msym),
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
paddress (gdbarch, func_addr));
}
/* No entry value based parameters would be reliable if this function can
call itself via tail calls. */
func_verify_no_selftailcall (gdbarch, func_addr);
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
for (iparams = 0; iparams < call_site->parameter_count; iparams++)
{
parameter = &call_site->parameter[iparams];
if (call_site_parameter_matches (parameter, kind, kind_u))
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
break;
}
if (iparams == call_site->parameter_count)
{
struct minimal_symbol *msym
= lookup_minimal_symbol_by_pc (caller_pc).minsym;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
/* DW_TAG_GNU_call_site_parameter will be missing just if GCC could not
determine its value. */
throw_error (NO_ENTRY_VALUE_ERROR, _("Cannot find matching parameter "
"at DW_TAG_GNU_call_site %s at %s"),
paddress (gdbarch, caller_pc),
change minsym representation In a later patch we're going to change the minimal symbol address calculation to apply section offsets at the point of use. To make it simpler to catch potential problem spots, this patch changes the representation of minimal symbols and introduces new minimal-symbol-specific variants of the various accessors. This is necessary because it would be excessively ambitious to try to convert all the symbol types at once. The core of this change is just renaming a field in minimal_symbol; the rest is just a fairly mechanical rewording. 2014-02-26 Tom Tromey <tromey@redhat.com> * symtab.h (struct minimal_symbol) <mginfo>: Rename from ginfo. (MSYMBOL_VALUE, MSYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_BYTES) (MSYMBOL_BLOCK_VALUE, MSYMBOL_VALUE_CHAIN, MSYMBOL_LANGUAGE) (MSYMBOL_SECTION, MSYMBOL_OBJ_SECTION, MSYMBOL_NATURAL_NAME) (MSYMBOL_LINKAGE_NAME, MSYMBOL_PRINT_NAME, MSYMBOL_DEMANGLED_NAME) (MSYMBOL_SET_LANGUAGE, MSYMBOL_SEARCH_NAME) (MSYMBOL_MATCHES_SEARCH_NAME, MSYMBOL_SET_NAMES): New macros. * ada-lang.c (ada_main_name): Update. (ada_lookup_simple_minsym): Update. (ada_make_symbol_completion_list): Update. (ada_add_standard_exceptions): Update. * ada-tasks.c (read_atcb, ada_tasks_inferior_data_sniffer): Update. * aix-thread.c (pdc_symbol_addrs, pd_enable): Update. * amd64-windows-tdep.c (amd64_skip_main_prologue): Update. * arm-tdep.c (skip_prologue_function): Update. (arm_skip_stack_protector, arm_skip_stub): Update. * arm-wince-tdep.c (arm_pe_skip_trampoline_code): Update. (arm_wince_skip_main_prologue): Update. * auxv.c (ld_so_xfer_auxv): Update. * avr-tdep.c (avr_scan_prologue): Update. * ax-gdb.c (gen_var_ref): Update. * block.c (call_site_for_pc): Update. * blockframe.c (get_pc_function_start): Update. (find_pc_partial_function_gnu_ifunc): Update. * breakpoint.c (create_overlay_event_breakpoint): Update. (create_longjmp_master_breakpoint): Update. (create_std_terminate_master_breakpoint): Update. (create_exception_master_breakpoint): Update. (resolve_sal_pc): Update. * bsd-uthread.c (bsd_uthread_lookup_address): Update. * btrace.c (ftrace_print_function_name, ftrace_function_switched): Update. * c-valprint.c (c_val_print): Update. * coff-pe-read.c (add_pe_forwarded_sym): Update. * coffread.c (coff_symfile_read): Update. * common/agent.c (agent_look_up_symbols): Update. * dbxread.c (find_stab_function_addr): Update. (end_psymtab): Update. * dwarf2loc.c (call_site_to_target_addr): Update. (func_verify_no_selftailcall): Update. (tailcall_dump): Update. (call_site_find_chain_1): Update. (dwarf_expr_reg_to_entry_parameter): Update. * elfread.c (elf_gnu_ifunc_record_cache): Update. (elf_gnu_ifunc_resolve_by_got): Update. * f-valprint.c (info_common_command): Update. * findvar.c (read_var_value): Update. * frame.c (get_prev_frame_1): Update. (inside_main_func): Update. * frv-tdep.c (frv_skip_main_prologue): Update. (frv_frame_this_id): Update. * glibc-tdep.c (glibc_skip_solib_resolver): Update. * gnu-v2-abi.c (gnuv2_value_rtti_type): Update. * gnu-v3-abi.c (gnuv3_rtti_type): Update. (gnuv3_skip_trampoline): Update. * hppa-hpux-tdep.c (hppa32_hpux_in_solib_call_trampoline): Update. (hppa64_hpux_in_solib_call_trampoline): Update. (hppa_hpux_skip_trampoline_code): Update. (hppa64_hpux_search_dummy_call_sequence): Update. (hppa_hpux_find_import_stub_for_addr): Update. (hppa_hpux_find_dummy_bpaddr): Update. * hppa-tdep.c (hppa_symbol_address) (hppa_lookup_stub_minimal_symbol): Update. * i386-tdep.c (i386_skip_main_prologue): Update. (i386_pe_skip_trampoline_code): Update. * ia64-tdep.c (ia64_convert_from_func_ptr_addr): Update. * infcall.c (get_function_name): Update. * infcmd.c (until_next_command): Update. * jit.c (jit_breakpoint_re_set_internal): Update. (jit_inferior_init): Update. * linespec.c (minsym_found): Update. (add_minsym): Update. * linux-fork.c (info_checkpoints_command): Update. * linux-nat.c (get_signo): Update. * linux-thread-db.c (inferior_has_bug): Update. * m32c-tdep.c (m32c_return_value): Update. (m32c_m16c_address_to_pointer): Update. (m32c_m16c_pointer_to_address): Update. * m32r-tdep.c (m32r_frame_this_id): Update. * m68hc11-tdep.c (m68hc11_get_register_info): Update. * machoread.c (macho_resolve_oso_sym_with_minsym): Update. * maint.c (maintenance_translate_address): Update. * minsyms.c (add_minsym_to_hash_table): Update. (add_minsym_to_demangled_hash_table): Update. (msymbol_objfile): Update. (lookup_minimal_symbol): Update. (iterate_over_minimal_symbols): Update. (lookup_minimal_symbol_text): Update. (lookup_minimal_symbol_by_pc_name): Update. (lookup_minimal_symbol_solib_trampoline): Update. (lookup_minimal_symbol_by_pc_section_1): Update. (lookup_minimal_symbol_and_objfile): Update. (prim_record_minimal_symbol_full): Update. (compare_minimal_symbols): Update. (compact_minimal_symbols): Update. (build_minimal_symbol_hash_tables): Update. (install_minimal_symbols): Update. (terminate_minimal_symbol_table): Update. (find_solib_trampoline_target): Update. (minimal_symbol_upper_bound): Update. * mips-linux-tdep.c (mips_linux_skip_resolver): Update. * mips-tdep.c (mips_stub_frame_sniffer): Update. (mips_skip_pic_trampoline_code): Update. * msp430-tdep.c (msp430_skip_trampoline_code): Update. * objc-lang.c (selectors_info): Update. (classes_info): Update. (find_methods): Update. (find_imps): Update. (find_objc_msgsend): Update. * objfiles.c (objfile_relocate1): Update. * objfiles.h (ALL_OBJFILE_MSYMBOLS): Update. * obsd-tdep.c (obsd_skip_solib_resolver): Update. * p-valprint.c (pascal_val_print): Update. * parse.c (write_exp_msymbol): Update. * ppc-linux-tdep.c (powerpc_linux_in_dynsym_resolve_code) (ppc_linux_spe_context_lookup, ppc_elfv2_skip_entrypoint): Update. * ppc-sysv-tdep.c (convert_code_addr_to_desc_addr): Update. * printcmd.c (build_address_symbolic): Update. (sym_info): Update. (address_info): Update. * proc-service.c (ps_pglobal_lookup): Update. * psymtab.c (find_pc_sect_psymtab_closer): Update. (find_pc_sect_psymtab): Update. * python/py-framefilter.c (py_print_frame): Update. * ravenscar-thread.c (get_running_thread_id): Update. * record-btrace.c (btrace_call_history, btrace_get_bfun_name): Update. * remote.c (remote_check_symbols): Update. * rs6000-tdep.c (rs6000_skip_main_prologue): Update. (rs6000_skip_trampoline_code): Update. * sh64-tdep.c (sh64_elf_make_msymbol_special): Update. * sol2-tdep.c (sol2_skip_solib_resolver): Update. * solib-dsbt.c (lm_base): Update. * solib-frv.c (lm_base): Update. (main_got): Update. * solib-irix.c (locate_base): Update. * solib-som.c (som_solib_create_inferior_hook): Update. (som_solib_desire_dynamic_linker_symbols): Update. (link_map_start): Update. * solib-spu.c (spu_enable_break): Update. (ocl_enable_break): Update. * solib-svr4.c (elf_locate_base): Update. (enable_break): Update. * spu-tdep.c (spu_get_overlay_table): Update. (spu_catch_start): Update. (flush_ea_cache): Update. * stabsread.c (define_symbol): Update. (scan_file_globals): Update. * stack.c (find_frame_funname): Update. (frame_info): Update. * symfile.c (simple_read_overlay_table): Update. (simple_overlay_update): Update. * symmisc.c (dump_msymbols): Update. * symtab.c (fixup_section): Update. (find_pc_sect_line): Update. (skip_prologue_sal): Update. (search_symbols): Update. (print_msymbol_info): Update. (rbreak_command): Update. (MCOMPLETION_LIST_ADD_SYMBOL): New macro. (completion_list_objc_symbol): Update. (default_make_symbol_completion_list_break_on): Update. * tracepoint.c (scope_info): Update. * tui/tui-disasm.c (tui_find_disassembly_address): Update. (tui_get_begin_asm_address): Update. * valops.c (find_function_in_inferior): Update. * value.c (value_static_field): Update. (value_fn_field): Update.
2013-08-15 14:43:43 +00:00
msym == NULL ? "???" : MSYMBOL_PRINT_NAME (msym));
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
}
*per_cu_return = call_site->per_cu;
return parameter;
}
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
/* Return value for PARAMETER matching DEREF_SIZE. If DEREF_SIZE is -1, return
the normal DW_AT_GNU_call_site_value block. Otherwise return the
DW_AT_GNU_call_site_data_value (dereferenced) block.
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
TYPE and CALLER_FRAME specify how to evaluate the DWARF block into returned
struct value.
Function always returns non-NULL, non-optimized out value. It throws
NO_ENTRY_VALUE_ERROR if it cannot resolve the value for any reason. */
static struct value *
dwarf_entry_parameter_to_value (struct call_site_parameter *parameter,
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
CORE_ADDR deref_size, struct type *type,
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
struct frame_info *caller_frame,
struct dwarf2_per_cu_data *per_cu)
{
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
const gdb_byte *data_src;
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
gdb_byte *data;
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
size_t size;
data_src = deref_size == -1 ? parameter->value : parameter->data_value;
size = deref_size == -1 ? parameter->value_size : parameter->data_value_size;
/* DEREF_SIZE size is not verified here. */
if (data_src == NULL)
throw_error (NO_ENTRY_VALUE_ERROR,
_("Cannot resolve DW_AT_GNU_call_site_data_value"));
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
/* DW_AT_GNU_call_site_value is a DWARF expression, not a DWARF
location. Postprocessing of DWARF_VALUE_MEMORY would lose the type from
DWARF block. */
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
data = alloca (size + 1);
memcpy (data, data_src, size);
data[size] = DW_OP_stack_value;
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
return dwarf2_evaluate_loc_desc (type, caller_frame, data, size + 1, per_cu);
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
}
/* Execute DWARF block of call_site_parameter which matches KIND and KIND_U.
Choose DEREF_SIZE value of that parameter. Search caller of the CTX's
frame. CTX must be of dwarf_expr_ctx_funcs kind.
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
The CTX caller can be from a different CU - per_cu_dwarf_call implementation
can be more simple as it does not support cross-CU DWARF executions. */
static void
dwarf_expr_push_dwarf_reg_entry_value (struct dwarf_expr_context *ctx,
enum call_site_parameter_kind kind,
union call_site_parameter_u kind_u,
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
int deref_size)
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
{
struct dwarf_expr_baton *debaton;
struct frame_info *frame, *caller_frame;
struct dwarf2_per_cu_data *caller_per_cu;
struct dwarf_expr_baton baton_local;
struct dwarf_expr_context saved_ctx;
struct call_site_parameter *parameter;
const gdb_byte *data_src;
size_t size;
gdb_assert (ctx->funcs == &dwarf_expr_ctx_funcs);
debaton = ctx->baton;
frame = debaton->frame;
caller_frame = get_prev_frame (frame);
parameter = dwarf_expr_reg_to_entry_parameter (frame, kind, kind_u,
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
&caller_per_cu);
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
data_src = deref_size == -1 ? parameter->value : parameter->data_value;
size = deref_size == -1 ? parameter->value_size : parameter->data_value_size;
/* DEREF_SIZE size is not verified here. */
if (data_src == NULL)
throw_error (NO_ENTRY_VALUE_ERROR,
_("Cannot resolve DW_AT_GNU_call_site_data_value"));
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
baton_local.frame = caller_frame;
baton_local.per_cu = caller_per_cu;
baton_local.obj_address = 0;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
saved_ctx.gdbarch = ctx->gdbarch;
saved_ctx.addr_size = ctx->addr_size;
saved_ctx.offset = ctx->offset;
saved_ctx.baton = ctx->baton;
ctx->gdbarch = get_objfile_arch (dwarf2_per_cu_objfile (baton_local.per_cu));
ctx->addr_size = dwarf2_per_cu_addr_size (baton_local.per_cu);
ctx->offset = dwarf2_per_cu_text_offset (baton_local.per_cu);
ctx->baton = &baton_local;
dwarf_expr_eval (ctx, data_src, size);
ctx->gdbarch = saved_ctx.gdbarch;
ctx->addr_size = saved_ctx.addr_size;
ctx->offset = saved_ctx.offset;
ctx->baton = saved_ctx.baton;
}
Initial support for Fission. http://gcc.gnu.org/wiki/DebugFission * symfile.c (default_symfile_relocate): Use sectp->owner instead of objfile->obfd. * symfile.h (dwarf2_debug_sections): New member addr. * dwarf2expr.c (execute_stack_op): New case DW_OP_GNU_addr_index. (ctx_no_get_addr_index): New function. * dwarf2expr.h (dwarf_expr_context_funcs): New member get_addr_index. (ctx_no_get_addr_index): Declare. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Update. * dwarf2loc.c (dwarf_expr_get_addr_index): New function. (dwarf_expr_ctx_funcs): Update. (needs_get_addr_index): New function. (needs_frame_ctx_funcs): Update. * dwarf2loc.h (dwarf2_read_addr_index): Declare. * dwarf2read.c: #include "gdbcore.h". (dwarf2_per_objfile): New members addr, dwo_files. (dwarf2_elf_names): Add entry for addr. (struct dwo_section_names): New type. (dwo_section_names): New static global. (dwarf2_cu): New members dwo_unit, addr_base, have_addr_base. (dwarf2_per_cu_data): New member is_debug_types, all boolean uses of old debug_types_section member updated to use this. Rename member debug_types_section to info_or_types_section, all uses updated. (signatured_type): Rename member type_offset to type_offset_in_tu, all uses updated. New member type_offset_in_section. (struct dwo_sections): New type. (struct dwo_unit): New type. (struct dwo_file): New type. (die_reader_specs): New member dwo_file. (dwarf2_locate_sections): Watch for .debug_addr. (zlib_decompress_section): Use sectp->owner instead of objfile->obfd. (dwarf2_read_section): Get bfd of section from bfd's asection, instead of objfile. (create_cus_from_index): Initialize the_cu->info_or_types_section. (create_signatured_type_table_from_index): Initialize sig_type->info_or_types_section. (dw2_get_file_names): Statement lists for type units with DWO files live in the DWO file. (create_debug_types_hash_table): New function. (create_all_type_units): Rewrite. (init_cu_die_reader): New arg dwo_file, all callers updated. (init_and_read_dies_worker): Get section from this_cu->info_or_types_section. Set sig_type->type_offset_in_section. Watch for DW_AT_GNU_dwo_name and if present lookup the file and continue reading the CU/TU from there. (init_cutu_and_read_dies_no_follow): New arg dwo_file, all callers updated. Get section from this_cu->info_or_types_section. (create_all_comp_units): Initialize this_cu->info_or_types_section. (skip_one_die): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (hash_dwo_file, eq_dwo_file): New functions. (allocate_dwo_file_hash_table): New function. (hash_dwo_unit, eq_dwo_unit): New functions. (allocate_dwo_unit_table): New function. (dwarf2_locate_dwo_sections): New function. (struct create_dwo_info_table_data): New type. (create_debug_info_hash_table_reader): New function. (create_debug_info_hash_table): New function. (try_open_dwo_file, open_dwo_file, init_dwo_file): New function. (lookup_dwo_file): New function. (lookup_dwo_comp_unit, lookup_dwo_type_unit): New functions. (free_dwo_file, free_dwo_file_cleanup): New functions. (free_dwo_file_from_slot, free_dwo_files): New functions. (dwarf2_get_pc_bounds): Handle DW_FORM_GNU_addr_index. (dwarf2_record_block_ranges): Ditto. (read_partial_die): Ditto. (process_enumeration_scope): Update to use type_offset_in_section. (read_full_die_1): New function. (read_full_die): Rewrite. (read_attribute_value): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (read_addr_index_1, read_addr_index): New functions. (read_addr_index_from_leb128): New function. (struct dwarf2_read_addr_index_data): New type. (dwarf2_read_addr_index_reader): New function. (dwarf2_read_addr_index): New function. (read_str_index): New function. (leb128_size): New function. (dwarf_decode_line_header): Delete arg abfd, all callers updated. If processing a type unit from a DWO file, get the line section from the DWO file. (var_decode_location): Watch for DW_OP_GNU_addr_index. (dwarf2_const_value_attr): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (lookup_die_type): Check whether section offset of type's die is known before looking it up. Remove assert. Condition can legimately happen for inter-cu type references. (dwarf_attr_name): Handle Fission attributes. (dwarf_form_name): Handle Fission forms. (dump_die_shallow): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (follow_die_sig): Update to use type_offset_in_section. (decode_locdesc): New case DW_OP_GNU_addr_index. (skip_form_bytes): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (cu_debug_loc_section): New function. (fill_in_loclist_baton, dwarf2_symbol_mark_computed): Call it. (dwarf2_per_objfile_free): Unmap .debug_addr section. Free DWO files if present. * xcoffread.c (dwarf2_xcoff_names): Add .debug_addr. testsuite/ * gdb.dwarf2/dw2-intercu.S (.Ltype_int2_in_cu2): Renamed from .Ltype_int_in_cu2. Use name "int2" instead of "int". All uses updated. * gdb.dwarf2/dw2-intercu.exp: Add "ptype int2" ahead of "ptype func_cu1" to expand cu2 before cu1.
2012-04-28 23:22:14 +00:00
/* Callback function for dwarf2_evaluate_loc_desc.
Fetch the address indexed by DW_OP_GNU_addr_index. */
static CORE_ADDR
dwarf_expr_get_addr_index (void *baton, unsigned int index)
{
struct dwarf_expr_baton *debaton = (struct dwarf_expr_baton *) baton;
return dwarf2_read_addr_index (debaton->per_cu, index);
}
/* Callback function for get_object_address. Return the address of the VLA
object. */
static CORE_ADDR
dwarf_expr_get_obj_addr (void *baton)
{
struct dwarf_expr_baton *debaton = baton;
gdb_assert (debaton != NULL);
if (debaton->obj_address == 0)
error (_("Location address is not set."));
return debaton->obj_address;
}
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
/* VALUE must be of type lval_computed with entry_data_value_funcs. Perform
the indirect method on it, that is use its stored target value, the sole
purpose of entry_data_value_funcs.. */
static struct value *
entry_data_value_coerce_ref (const struct value *value)
{
struct type *checked_type = check_typedef (value_type (value));
struct value *target_val;
if (TYPE_CODE (checked_type) != TYPE_CODE_REF)
return NULL;
target_val = value_computed_closure (value);
value_incref (target_val);
return target_val;
}
/* Implement copy_closure. */
static void *
entry_data_value_copy_closure (const struct value *v)
{
struct value *target_val = value_computed_closure (v);
value_incref (target_val);
return target_val;
}
/* Implement free_closure. */
static void
entry_data_value_free_closure (struct value *v)
{
struct value *target_val = value_computed_closure (v);
value_free (target_val);
}
/* Vector for methods for an entry value reference where the referenced value
is stored in the caller. On the first dereference use
DW_AT_GNU_call_site_data_value in the caller. */
static const struct lval_funcs entry_data_value_funcs =
{
NULL, /* read */
NULL, /* write */
NULL, /* indirect */
entry_data_value_coerce_ref,
NULL, /* check_synthetic_pointer */
entry_data_value_copy_closure,
entry_data_value_free_closure
};
/* Read parameter of TYPE at (callee) FRAME's function entry. KIND and KIND_U
are used to match DW_AT_location at the caller's
DW_TAG_GNU_call_site_parameter.
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
Function always returns non-NULL value. It throws NO_ENTRY_VALUE_ERROR if it
cannot resolve the parameter for any reason. */
static struct value *
value_of_dwarf_reg_entry (struct type *type, struct frame_info *frame,
enum call_site_parameter_kind kind,
union call_site_parameter_u kind_u)
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
{
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
struct type *checked_type = check_typedef (type);
struct type *target_type = TYPE_TARGET_TYPE (checked_type);
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
struct frame_info *caller_frame = get_prev_frame (frame);
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
struct value *outer_val, *target_val, *val;
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
struct call_site_parameter *parameter;
struct dwarf2_per_cu_data *caller_per_cu;
parameter = dwarf_expr_reg_to_entry_parameter (frame, kind, kind_u,
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
&caller_per_cu);
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
outer_val = dwarf_entry_parameter_to_value (parameter, -1 /* deref_size */,
type, caller_frame,
caller_per_cu);
/* Check if DW_AT_GNU_call_site_data_value cannot be used. If it should be
used and it is not available do not fall back to OUTER_VAL - dereferencing
TYPE_CODE_REF with non-entry data value would give current value - not the
entry value. */
if (TYPE_CODE (checked_type) != TYPE_CODE_REF
|| TYPE_TARGET_TYPE (checked_type) == NULL)
return outer_val;
target_val = dwarf_entry_parameter_to_value (parameter,
TYPE_LENGTH (target_type),
target_type, caller_frame,
caller_per_cu);
release_value (target_val);
val = allocate_computed_value (type, &entry_data_value_funcs,
target_val /* closure */);
/* Copy the referencing pointer to the new computed value. */
memcpy (value_contents_raw (val), value_contents_raw (outer_val),
TYPE_LENGTH (checked_type));
set_value_lazy (val, 0);
return val;
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
}
/* Read parameter of TYPE at (callee) FRAME's function entry. DATA and
SIZE are DWARF block used to match DW_AT_location at the caller's
DW_TAG_GNU_call_site_parameter.
Function always returns non-NULL value. It throws NO_ENTRY_VALUE_ERROR if it
cannot resolve the parameter for any reason. */
static struct value *
value_of_dwarf_block_entry (struct type *type, struct frame_info *frame,
const gdb_byte *block, size_t block_len)
{
union call_site_parameter_u kind_u;
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
kind_u.dwarf_reg = dwarf_block_to_dwarf_reg (block, block + block_len);
if (kind_u.dwarf_reg != -1)
return value_of_dwarf_reg_entry (type, frame, CALL_SITE_PARAMETER_DWARF_REG,
kind_u);
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
if (dwarf_block_to_fb_offset (block, block + block_len, &kind_u.fb_offset))
return value_of_dwarf_reg_entry (type, frame, CALL_SITE_PARAMETER_FB_OFFSET,
kind_u);
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
/* This can normally happen - throw NO_ENTRY_VALUE_ERROR to get the message
suppressed during normal operation. The expression can be arbitrary if
there is no caller-callee entry value binding expected. */
throw_error (NO_ENTRY_VALUE_ERROR,
_("DWARF-2 expression error: DW_OP_GNU_entry_value is supported "
"only for single DW_OP_reg* or for DW_OP_fbreg(*)"));
}
struct piece_closure
{
/* Reference count. */
int refc;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
/* The CU from which this closure's expression came. */
struct dwarf2_per_cu_data *per_cu;
/* The number of pieces used to describe this variable. */
int n_pieces;
/* The target address size, used only for DWARF_VALUE_STACK. */
int addr_size;
/* The pieces themselves. */
struct dwarf_expr_piece *pieces;
};
/* Allocate a closure for a value formed from separately-described
PIECES. */
static struct piece_closure *
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
allocate_piece_closure (struct dwarf2_per_cu_data *per_cu,
int n_pieces, struct dwarf_expr_piece *pieces,
int addr_size)
{
replace XZALLOC with XCNEW This replaces XZALLOC with XCNEW and removes XZALLOC. This change is purely mechanical. 2014-01-13 Tom Tromey <tromey@redhat.com> * defs.h (XZALLOC): Remove. * ada-lang.c (get_ada_inferior_data): Use XCNEW, not XZALLOC. * ada-tasks.c (get_ada_tasks_pspace_data): Likewise. (get_ada_tasks_inferior_data): Likewise. * auto-load.c (get_auto_load_pspace_data): Likewise. * auxv.c (get_auxv_inferior_data): Likewise. * bfd-target.c (target_bfd_reopen): Likewise. * breakpoint.c (get_catch_syscall_inferior_data): Likewise. (deprecated_insert_raw_breakpoint): Likewise. * bsd-uthread.c (bsd_uthread_pid_to_str): Likewise. * corelow.c (core_open): Likewise. * darwin-nat.c (darwin_check_new_threads): Likewise. (darwin_attach_pid): Likewise. * dummy-frame.c (dummy_frame_push): Likewise. * dwarf2-frame.c (dwarf2_frame_cache): Likewise. * dwarf2loc.c (allocate_piece_closure): Likewise. * elfread.c (elf_symfile_segments): Likewise. * eval.c (ptrmath_type_p): Likewise. * exceptions.c (EXCEPTIONS_SIGJMP_BUF): Likewise. * gdbtypes.c (alloc_type_arch): Likewise. (alloc_type_instance): Likewise. * hppa-tdep.c (hppa_gdbarch_init): Likewise. * inf-child.c (inf_child_can_use_agent): Likewise. * inflow.c (get_inflow_inferior_data): Likewise. * infrun.c (save_infcall_suspend_state): Likewise. * jit.c (jit_reader_load): Likewise. (get_jit_objfile_data): Likewise. (get_jit_program_space_data): Likewise. (jit_object_open_impl): Likewise. (jit_symtab_open_impl): Likewise. (jit_block_open_impl): Likewise. (jit_frame_sniffer): Likewise. * linux-fork.c (add_fork): Likewise. * maint.c (make_command_stats_cleanup): Likewise. * objfiles.c (get_objfile_pspace_data): Likewise. * opencl-lang.c (struct lval_closure): Likewise. * osdata.c (osdata_start_osdata): Likewise. * progspace.c (new_address_space): Likewise. (add_program_space): Likewise. * remote-sim.c (get_sim_inferior_data): Likewise. * sh-tdep.c (sh_gdbarch_init): Likewise. * skip.c (Ignore): Likewise. (skip_delete_command): Likewise. * solib-aix.c (get_solib_aix_inferior_data): Likewise. (library_list_start_library): Likewise. (solib_aix_current_sos): Likewise. * solib-darwin.c (get_darwin_info): Likewise. (darwin_current_sos): Likewise. * solib-dsbt.c (get_dsbt_info): Likewise. * solib-ia64-hpux.c (new_so_list): Likewise. (ia64_hpux_get_solib_linkage_addr): Likewise. * solib-spu.c (append_ocl_sos): Likewise. (spu_current_sos): Likewise. * solib-svr4.c (get_svr4_info): Likewise. (svr4_keep_data_in_core): Likewise. (library_list_start_library): Likewise. (svr4_default_sos): Likewise. (svr4_read_so_list): Likewise. * solib-target.c (library_list_start_library): Likewise. (solib_target_current_sos): Likewise. * sparc-tdep.c (sparc32_gdbarch_init): Likewise. * symfile-debug.c (install_symfile_debug_logging): Likewise. * symfile.c (default_symfile_segments): Likewise. * target-descriptions.c (tdesc_data_init): Likewise. (tdesc_create_reg): Likewise. (struct tdesc_type *): Likewise. (tdesc_create_vector): Likewise. (tdesc_set_struct_size): Likewise. (struct tdesc_type *): Likewise. (tdesc_free_feature): Likewise. (tdesc_create_feature): Likewise. * windows-nat.c (windows_add_thread): Likewise. (windows_make_so): Likewise. * xml-support.c (gdb_xml_body_text): Likewise. (gdb_xml_create_parser_and_cleanup): Likewise. (xml_process_xincludes): Likewise. * xml-syscall.c (allocate_syscalls_info): Likewise. (syscall_create_syscall_desc): Likewise.
2013-12-28 22:31:01 +00:00
struct piece_closure *c = XCNEW (struct piece_closure);
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
int i;
c->refc = 1;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
c->per_cu = per_cu;
c->n_pieces = n_pieces;
c->addr_size = addr_size;
c->pieces = XCNEWVEC (struct dwarf_expr_piece, n_pieces);
memcpy (c->pieces, pieces, n_pieces * sizeof (struct dwarf_expr_piece));
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
for (i = 0; i < n_pieces; ++i)
if (c->pieces[i].location == DWARF_VALUE_STACK)
value_incref (c->pieces[i].v.value);
return c;
}
/* The lowest-level function to extract bits from a byte buffer.
SOURCE is the buffer. It is updated if we read to the end of a
byte.
SOURCE_OFFSET_BITS is the offset of the first bit to read. It is
updated to reflect the number of bits actually read.
NBITS is the number of bits we want to read. It is updated to
reflect the number of bits actually read. This function may read
fewer bits.
BITS_BIG_ENDIAN is taken directly from gdbarch.
This function returns the extracted bits. */
static unsigned int
extract_bits_primitive (const gdb_byte **source,
unsigned int *source_offset_bits,
int *nbits, int bits_big_endian)
{
unsigned int avail, mask, datum;
gdb_assert (*source_offset_bits < 8);
avail = 8 - *source_offset_bits;
if (avail > *nbits)
avail = *nbits;
mask = (1 << avail) - 1;
datum = **source;
if (bits_big_endian)
datum >>= 8 - (*source_offset_bits + *nbits);
else
datum >>= *source_offset_bits;
datum &= mask;
*nbits -= avail;
*source_offset_bits += avail;
if (*source_offset_bits >= 8)
{
*source_offset_bits -= 8;
++*source;
}
return datum;
}
/* Extract some bits from a source buffer and move forward in the
buffer.
SOURCE is the source buffer. It is updated as bytes are read.
SOURCE_OFFSET_BITS is the offset into SOURCE. It is updated as
bits are read.
NBITS is the number of bits to read.
BITS_BIG_ENDIAN is taken directly from gdbarch.
This function returns the bits that were read. */
static unsigned int
extract_bits (const gdb_byte **source, unsigned int *source_offset_bits,
int nbits, int bits_big_endian)
{
unsigned int datum;
gdb_assert (nbits > 0 && nbits <= 8);
datum = extract_bits_primitive (source, source_offset_bits, &nbits,
bits_big_endian);
if (nbits > 0)
{
unsigned int more;
more = extract_bits_primitive (source, source_offset_bits, &nbits,
bits_big_endian);
if (bits_big_endian)
datum <<= nbits;
else
more <<= nbits;
datum |= more;
}
return datum;
}
/* Write some bits into a buffer and move forward in the buffer.
DATUM is the bits to write. The low-order bits of DATUM are used.
DEST is the destination buffer. It is updated as bytes are
written.
DEST_OFFSET_BITS is the bit offset in DEST at which writing is
done.
NBITS is the number of valid bits in DATUM.
BITS_BIG_ENDIAN is taken directly from gdbarch. */
static void
insert_bits (unsigned int datum,
gdb_byte *dest, unsigned int dest_offset_bits,
int nbits, int bits_big_endian)
{
unsigned int mask;
gdb_assert (dest_offset_bits + nbits <= 8);
mask = (1 << nbits) - 1;
if (bits_big_endian)
{
datum <<= 8 - (dest_offset_bits + nbits);
mask <<= 8 - (dest_offset_bits + nbits);
}
else
{
datum <<= dest_offset_bits;
mask <<= dest_offset_bits;
}
gdb_assert ((datum & ~mask) == 0);
*dest = (*dest & ~mask) | datum;
}
/* Copy bits from a source to a destination.
DEST is where the bits should be written.
DEST_OFFSET_BITS is the bit offset into DEST.
SOURCE is the source of bits.
SOURCE_OFFSET_BITS is the bit offset into SOURCE.
BIT_COUNT is the number of bits to copy.
BITS_BIG_ENDIAN is taken directly from gdbarch. */
static void
copy_bitwise (gdb_byte *dest, unsigned int dest_offset_bits,
const gdb_byte *source, unsigned int source_offset_bits,
unsigned int bit_count,
int bits_big_endian)
{
unsigned int dest_avail;
int datum;
/* Reduce everything to byte-size pieces. */
dest += dest_offset_bits / 8;
dest_offset_bits %= 8;
source += source_offset_bits / 8;
source_offset_bits %= 8;
dest_avail = 8 - dest_offset_bits % 8;
/* See if we can fill the first destination byte. */
if (dest_avail < bit_count)
{
datum = extract_bits (&source, &source_offset_bits, dest_avail,
bits_big_endian);
insert_bits (datum, dest, dest_offset_bits, dest_avail, bits_big_endian);
++dest;
dest_offset_bits = 0;
bit_count -= dest_avail;
}
/* Now, either DEST_OFFSET_BITS is byte-aligned, or we have fewer
than 8 bits remaining. */
gdb_assert (dest_offset_bits % 8 == 0 || bit_count < 8);
for (; bit_count >= 8; bit_count -= 8)
{
datum = extract_bits (&source, &source_offset_bits, 8, bits_big_endian);
*dest++ = (gdb_byte) datum;
}
/* Finally, we may have a few leftover bits. */
gdb_assert (bit_count <= 8 - dest_offset_bits % 8);
if (bit_count > 0)
{
datum = extract_bits (&source, &source_offset_bits, bit_count,
bits_big_endian);
insert_bits (datum, dest, dest_offset_bits, bit_count, bits_big_endian);
}
}
static void
read_pieced_value (struct value *v)
{
int i;
long offset = 0;
ULONGEST bits_to_skip;
gdb_byte *contents;
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 22:22:53 +00:00
struct piece_closure *c
= (struct piece_closure *) value_computed_closure (v);
struct frame_info *frame = frame_find_by_id (VALUE_FRAME_ID (v));
size_t type_len;
size_t buffer_size = 0;
-Wpointer-sign: char -> gdb_byte. -Wpointer-sign catches all these cases across the codebase that should be using gdb_byte for raw target bytes. I think these are all obvious, hence I've collapsed into a single patch. gdb/ 2013-04-19 Pedro Alves <palves@redhat.com> * aarch64-tdep.c (aarch64_default_breakpoint): Change type to gdb_byte[]. (aarch64_breakpoint_from_pc): Change return type to gdb_byte *. * ada-lang.c (ada_value_assign): Use gdb_byte. * alphanbsd-tdep.c (sigtramp_retcode): Change type to gdb_byte[]. (alphanbsd_sigtramp_offset): Use gdb_byte. * arm-linux-tdep.c (arm_linux_arm_le_breakpoint) (arm_linux_arm_be_breakpoint, eabi_linux_arm_le_breakpoint) (eabi_linux_arm_be_breakpoint, arm_linux_thumb_be_breakpoint) (arm_linux_thumb_le_breakpoint, arm_linux_thumb2_be_breakpoint) (arm_linux_thumb2_le_breakpoint): Change type to gdb_byte[]. * arm-tdep.c (arm_stub_unwind_sniffer) (arm_displaced_init_closure): Use gdb_byte. (arm_default_arm_le_breakpoint, arm_default_arm_be_breakpoint) (arm_default_thumb_le_breakpoint) (arm_default_thumb_be_breakpoint): Change type to gdb_byte[]. * arm-tdep.h (struct gdbarch_tdep) <arm_breakpoint, thumb_breakpoint, thumb2_breakpoint>: Change type to gdb_byte *. * arm-wince-tdep.c (arm_wince_le_breakpoint) (arm_wince_thumb_le_breakpoint): Change type to gdb_byte[]. * armnbsd-tdep.c (arm_nbsd_arm_le_breakpoint) (arm_nbsd_arm_be_breakpoint, arm_nbsd_thumb_le_breakpoint) (arm_nbsd_thumb_be_breakpoint): Change type to gdb_byte[]. * armobsd-tdep.c (arm_obsd_thumb_le_breakpoint) (arm_obsd_thumb_be_breakpoint): Change type to gdb_byte[]. * cris-tdep.c (push_stack_item, cris_push_dummy_call) (cris_store_return_value, cris_extract_return_value): Use gdb_byte. (constraint): Change type of parameter to char * from signed char*. Use gdb_byte. * dwarf2loc.c (read_pieced_value, write_pieced_value): Change type of local buffer to gdb_byte *. * dwarf2read.c (read_index_from_section): Use gdb_byte. (create_dwp_hash_table): Change type of locals to gdb_byte *. (add_address_entry): Change type of local buffer to gdb_byte[]. * frv-tdep.c (frv_adjust_breakpoint_address, find_func_descr) (frv_push_dummy_call): Use gdb_byte. * hppa-hpux-tdep.c (hppa_hpux_push_dummy_code) (hppa_hpux_supply_ss_fpblock, hppa_hpux_supply_ss_wide) (hppa_hpux_supply_save_state): Use gdb_byte. * hppa-tdep.c (hppa32_push_dummy_call) (hppa64_convert_code_addr_to_fptr): Use gdb_byte. * ia64-tdep.c (extract_bit_field, replace_bit_field) (slotN_contents, replace_slotN_contents): Change type of parameter to gdb_byte *. (fetch_instruction, ia64_pseudo_register_write) (ia64_register_to_value, ia64_value_to_register) (ia64_extract_return_value, ia64_store_return_value) (ia64_push_dummy_call): Use gdb_byte. * m32c-tdep.c (m32c_return_value): Remove cast. * m68hc11-tdep.c (m68hc11_pseudo_register_write) (m68hc11_push_dummy_call, m68hc11_store_return_value): Use gdb_byte. * mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Use gdb_byte. * mn10300-tdep.c (mn10300_store_return_value) (mn10300_breakpoint_from_pc, mn10300_push_dummy_call): Use gdb_byte. * moxie-tdep.c (moxie_process_readu): Use gdb_byte. (moxie_process_record): Remove casts. * ppc-ravenscar-thread.c (supply_register_at_address) (ppc_ravenscar_generic_store_registers): Use gdb_byte. * ravenscar-thread.c (get_running_thread_id): Use gdb_byte. * remote-m32r-sdi.c (m32r_fetch_register): Use gdb_byte. * remote-mips.c (mips_xfer_memory): Use gdb_byte. * remote.c (compare_sections_command): Use gdb_byte. * score-tdep.c (score7_free_memblock): Change type of parameter to gdb_byte *. * sh-tdep.c (sh_justify_value_in_reg): Change return type to gdb_byte *. Use gdb_byte. (sh_push_dummy_call_fpu): Use gdb_byte. (sh_extract_return_value_nofpu, sh_extract_return_value_fpu) (sh_store_return_value_nofpu, sh_store_return_value_fpu) (sh_register_convert_to_virtual, sh_register_convert_to_raw): Change parameter type to 'gdb_byte *'. Use gdb_byte. (sh_pseudo_register_read, sh_pseudo_register_write): Use gdb_byte. * sh64-tdep.c (sh64_push_dummy_call): Use gdb_byte. (sh64_store_return_value, sh64_register_convert_to_virtual): Change parameter type to 'gdb_byte *'. Use gdb_byte. (sh64_pseudo_register_write): Use gdb_byte. * solib-darwin.c (darwin_current_sos): Add casts to 'gdb_byte *'. * solib-irix.c (fetch_lm_info): Likewise. Use gdb_byte for byte buffer. (irix_current_sos): Use gdb_byte. * solib-som.c (som_current_sos): Use gdb_byte. * sparc-ravenscar-thread.c (supply_register_at_address) (sparc_ravenscar_generic_store_registers): Use gdb_byte. * spu-multiarch.c (spu_xfer_partial): Add cast to 'char *'. * spu-tdep.c (spu_get_overlay_table): Use gdb_byte. * tic6x-tdep.c (tic6x_breakpoint_from_pc): Change return type to 'gdb_byte *'. * tic6x-tdep.h (struct gdbarch_tdep) <breakpoint>: Change type to 'gdb_byte *'. * tracepoint.c (tfile_fetch_registers): Use gdb_byte. * xstormy16-tdep.c (xstormy16_extract_return_value) (xstormy16_store_return_value): Change parameter type to 'gdb_byte *'. Adjust. (xstormy16_push_dummy_call): Use gdb_byte. * xtensa-tdep.c (xtensa_scan_prologue, call0_ret) (call0_analyze_prologue, execute_code): Use gdb_byte.
2013-04-19 15:09:46 +00:00
gdb_byte *buffer = NULL;
struct cleanup *cleanup;
int bits_big_endian
= gdbarch_bits_big_endian (get_type_arch (value_type (v)));
if (value_type (v) != value_enclosing_type (v))
internal_error (__FILE__, __LINE__,
_("Should not be able to create a lazy value with "
"an enclosing type"));
cleanup = make_cleanup (free_current_contents, &buffer);
contents = value_contents_raw (v);
bits_to_skip = 8 * value_offset (v);
gdb PR gdb/9977, PR exp/11636: * value.h (value_offset): Update. (struct lval_funcs) <check_validity>: New field. <copy_closure>: Make argument const. (value_computed_closure): Update. (value_contents_for_printing): Declare. (value_bits_valid): Likewise. (val_print): Likewise. (set_value_component_location): Update. (value_entirely_optimized_out): Declare. * value.c (value_offset): Argument now const. (require_not_optimized_out): New function. (value_contents_for_printing): New function. (value_contents_all): Call require_not_optimized_out. (value_contents): Likewise. (value_bits_valid): New function. (value_computed_closure): Argument now const. (set_value_component_location): Make 'whole' argument const. (value_entirely_optimized_out): New function. (value_bitsize): Argument now 'const'. (value_bitpos): Likewise. (value_type): Likewise. * valprint.h (val_print_array_elements): Update. * valprint.c (val_print): Add 'val' argument. Use valprint_check_validity. (valprint_check_validity): New function. (value_check_printable): Use value_entirely_optimized_out. (common_val_print): Update. (value_print): Likewise. (val_print_array_elements): Add 'val' argument. * valops.c (value_fetch_lazy): Use value_contents_for_printing, value_bits_valid. Reinit frame cache for lval_computed. * sh64-tdep.c (sh64_do_register): Update. * scm-valprint.c (scm_val_print): Add 'val' argument. * scm-lang.h (scm_val_print): Update. * python/python.h (apply_val_pretty_printer): Update. * python/py-prettyprint.c (apply_val_pretty_printer): Add 'val' argument. Call set_value_component_location. * printcmd.c (print_scalar_formatted): Update. * p-valprint.c (pascal_val_print): Add 'val' argument. (pascal_object_print_value_fields): Likewise. (pascal_object_print_value): Likewise. (pascal_object_print_static_field): Update. * p-lang.h (pascal_val_print): Update. (pascal_object_print_value_fields): Update. * mt-tdep.c (mt_registers_info): Update. * mi/mi-main.c (get_register): Update. (mi_cmd_data_evaluate_expression): Use common_val_print. * m2-valprint.c (m2_print_array_contents): Add 'val' argument. (m2_print_unbounded_array): Likewise. (m2_val_print): Likewise. * m2-lang.h (m2_val_print): Update. * language.h (struct language_defn) <la_val_print>: Add 'val' argument. (LA_VAL_PRINT): Likewise. * language.c (unk_lang_val_print): Add 'val' argument. * jv-valprint.c (java_print_value_fields): Add 'val' argument. (java_val_print): Likewise. * jv-lang.h (java_val_print): Add 'val' argument. * infcmd.c (default_print_registers_info): Update. * f-valprint.c (f77_print_array_1): Add 'val' argument. (f77_print_array): Likewise. (f_val_print): Likewise. * f-lang.h (f_val_print): Add 'val' argument. * dwarf2loc.c (read_pieced_value): Use value_bitsize and value_bitpos. <DWARF_VALUE_OPTIMIZED_OUT>: Don't print warning. Call set_value_optimized_out. (write_pieced_value): Use value_bitsize and value_bitpos. <default>: Don't exit loop. (check_pieced_value_validity): New function. (pieced_value_funcs): Reference check_pieced_value_validity, check_pieced_value_invalid. (copy_pieced_value_closure): Update. (check_pieced_value_bits): New function. (check_pieced_value_invalid): New function. * d-valprint.c (dynamic_array_type): Add 'val' argument. (d_val_print): Likewise. * d-lang.h (d_val_print): Update. * cp-valprint.c (cp_print_value_fields): Add 'val' argument. (cp_print_value_fields_rtti): Likewise. (cp_print_value): Likewise. (cp_print_static_field): Update. * c-valprint.c (c_val_print): Add 'val' argument. (c_value_print): Update. * c-lang.h (c_val_print): Update. (cp_print_value_fields): Likewise. (cp_print_value_fields_rtti): Likewise. * ada-valprint.c (struct ada_val_print_args): Remove. (val_print_packed_array_elements): Add 'val' argument. (ada_val_print): Likewise. Rewrite. (ada_val_print_stub): Remove. (ada_val_print_array): Add 'val' argument. (ada_val_print_1): Likewise. (print_variant_part): Likewise. (ada_value_print): Update. (print_record): Add 'val' argument. (print_field_values): Likewise. * ada-lang.h (ada_val_print): Update. gdb/testsuite PR gdb/9977, PR exp/11636:: * gdb.dwarf2/pieces.exp (pieces_test_f3): Remove kfail. (pieces_test_f6): Update expected output.
2010-06-11 15:36:10 +00:00
if (value_bitsize (v))
{
bits_to_skip += value_bitpos (v);
type_len = value_bitsize (v);
}
else
type_len = 8 * TYPE_LENGTH (value_type (v));
for (i = 0; i < c->n_pieces && offset < type_len; i++)
{
struct dwarf_expr_piece *p = &c->pieces[i];
size_t this_size, this_size_bits;
long dest_offset_bits, source_offset_bits, source_offset;
const gdb_byte *intermediate_buffer;
/* Compute size, source, and destination offsets for copying, in
bits. */
this_size_bits = p->size;
if (bits_to_skip > 0 && bits_to_skip >= this_size_bits)
{
bits_to_skip -= this_size_bits;
continue;
}
if (bits_to_skip > 0)
{
dest_offset_bits = 0;
source_offset_bits = bits_to_skip;
this_size_bits -= bits_to_skip;
bits_to_skip = 0;
}
else
{
dest_offset_bits = offset;
source_offset_bits = 0;
}
Fix PR symtab/15391 PR symtab/15391 is a failure with the DW_OP_GNU_implicit_pointer feature. I tracked it down to a logic error in read_pieced_value. The code truncates this_size_bits according to the type size and offset too early -- it should do it after taking bits_to_skip into account. This patch fixes the bug. While testing this, I also tripped across a latent bug because indirect_pieced_value does not sign-extend where needed. This patch fixes this bug as well. Finally, Pedro pointed out that a previous version implemented sign extension incorrectly. This version introduces a new gdb_sign_extend function for this. A couple of notes on this function: * It has the gdb_ prefix to avoid clashes with various libraries that felt free to avoid proper namespacing. There is a "sign_extend" function in a Tile GX header, in an SOM-related BFD header (and in sh64-tdep.c and as a macro in arm-wince-tdep.c, but those are ours...) * I looked at all the sign extensions in gdb and didn't see ones that I felt comfortable converting to use this function; in large part because I don't have a good way to test the conversion. Built and regtested on x86-64 Fedora 18. New test cases included; this required a minor addition to the DWARF assembler. Note that the DWARF CU made by implptrpiece.exp uses a funny pointer size in order to show the sign-extension bug on all platforms. * dwarf2loc.c (read_pieced_value): Truncate this_size_bits after taking bits_to_skip into account. Sign extend byte_offset. * utils.h (gdb_sign_extend): Declare. * utils.c (gdb_sign_extend): New function. * gdb.dwarf2/implptrpiece.exp: New file. * gdb.dwarf2/implptrconst.exp (d): New variable. Print d. * lib/dwarf2.exp (Dwarf::_location): Handle DW_OP_piece.
2013-06-18 18:11:19 +00:00
if (this_size_bits > type_len - offset)
this_size_bits = type_len - offset;
this_size = (this_size_bits + source_offset_bits % 8 + 7) / 8;
source_offset = source_offset_bits / 8;
if (buffer_size < this_size)
{
buffer_size = this_size;
buffer = xrealloc (buffer, buffer_size);
}
intermediate_buffer = buffer;
/* Copy from the source to DEST_BUFFER. */
switch (p->location)
{
case DWARF_VALUE_REGISTER:
{
struct gdbarch *arch = get_frame_arch (frame);
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
int gdb_regnum = gdbarch_dwarf2_reg_to_regnum (arch, p->v.regno);
if (gdb_regnum != -1)
{
gdb/ * dwarf2loc.c (read_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. (write_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out when doing a read-modify write of a bitfield. * findvar.c (value_from_register): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. * frame.c (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. Throw error on bad debug info. Use frame_register instead of frame_register_read, to fill in the new arguments. * frame.h (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. * valops.c: (value_assign): Adjust, and handle get_frame_register_bytes failing. * spu-tdep.c: Include exceptions.h. (spu_software_single_step): Adjust, and handle get_frame_register_bytes failing. (spu_get_longjmp_target): Ditto. * gdbarch.sh (register_to_value): Change to return int. New parameters `optimizedp' and `unavailablep'. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_register_to_value): Adjust to new gdbarch_register_to_value interface. * i387-tdep.c (i387_register_to_value): Ditto. * i387-tdep.h (i387_register_to_value): Ditto. * alpha-tdep.c (alpha_register_to_value): Ditto. * ia64-tdep.c (ia64_register_to_value): Ditto. * m68k-tdep.c (m68k_register_to_value): Ditto. * mips-tdep.c (mips_register_to_value): Ditto. * rs6000-tdep.c (rs6000_register_to_value): Ditto.
2011-03-18 18:42:41 +00:00
int optim, unavail;
read_pieced_value do big endian processing only in case of valid gdb_regnum During armv7b testing gdb.base/store.exp test was failling with 'GDB internal error' with the following message: Temporary breakpoint 1, wack_double (u= ../../binutils-gdb/gdb/regcache.c:177: internal-error: register_size: Assertion `regnum >= 0 && regnum < (gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch))' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. It turns out that compiler generated DWARF with non-existent register numbers. The compiler issue is present in both little endian (armv7) and big endian (armv7b) (it is separate issue). Here is example for one of formal parameters of wack_double function: <2><792>: Abbrev Number: 10 (DW_TAG_formal_parameter) <793> DW_AT_name : u <795> DW_AT_decl_file : 1 <796> DW_AT_decl_line : 115 <797> DW_AT_type : <0x57c> <79b> DW_AT_location : 6 byte block: 6d 93 4 6c 93 4 (DW_OP_reg29 (r29); DW_OP_piece: 4; DW_OP_reg28 (r28); DW_OP_piece: 4) In both big and little endian cases gdbarch_dwarf2_reg_to_regnum returns -1 which is stored into gdb_regnum. But it causes severe problem only in big endian case because in read_pieced_value and write_pieced_value functions BFD_ENDIAN_BIG related processing happen regardless of gdb_regnum value, for example register_size function is called and in case of gdb_regnum=-1, it cause 'GDB internal error' and crash. Solution is to move BFD_ENDIAN_BIG related processing under (gdb_regnum != -1) branch of processing. gdb/ChangeLog: 2014-11-02 Victor Kamensky <victor.kamensky@linaro.org> * dwarf2loc.c (read_pieced_value): Do big endian processing only if gdb_regnum is not -1. (write_pieced_value): Ditto.
2014-11-02 21:28:35 +00:00
int reg_offset = source_offset;
if (gdbarch_byte_order (arch) == BFD_ENDIAN_BIG
&& this_size < register_size (arch, gdb_regnum))
{
/* Big-endian, and we want less than full size. */
reg_offset = register_size (arch, gdb_regnum) - this_size;
/* We want the lower-order THIS_SIZE_BITS of the bytes
we extract from the register. */
source_offset_bits += 8 * this_size - this_size_bits;
}
gdb/ * dwarf2loc.c (read_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. (write_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out when doing a read-modify write of a bitfield. * findvar.c (value_from_register): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. * frame.c (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. Throw error on bad debug info. Use frame_register instead of frame_register_read, to fill in the new arguments. * frame.h (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. * valops.c: (value_assign): Adjust, and handle get_frame_register_bytes failing. * spu-tdep.c: Include exceptions.h. (spu_software_single_step): Adjust, and handle get_frame_register_bytes failing. (spu_get_longjmp_target): Ditto. * gdbarch.sh (register_to_value): Change to return int. New parameters `optimizedp' and `unavailablep'. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_register_to_value): Adjust to new gdbarch_register_to_value interface. * i387-tdep.c (i387_register_to_value): Ditto. * i387-tdep.h (i387_register_to_value): Ditto. * alpha-tdep.c (alpha_register_to_value): Ditto. * ia64-tdep.c (ia64_register_to_value): Ditto. * m68k-tdep.c (m68k_register_to_value): Ditto. * mips-tdep.c (mips_register_to_value): Ditto. * rs6000-tdep.c (rs6000_register_to_value): Ditto.
2011-03-18 18:42:41 +00:00
if (!get_frame_register_bytes (frame, gdb_regnum, reg_offset,
this_size, buffer,
&optim, &unavail))
{
/* Just so garbage doesn't ever shine through. */
memset (buffer, 0, this_size);
if (optim)
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
mark_value_bits_optimized_out (v, offset, this_size_bits);
gdb/ * dwarf2loc.c (read_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. (write_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out when doing a read-modify write of a bitfield. * findvar.c (value_from_register): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. * frame.c (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. Throw error on bad debug info. Use frame_register instead of frame_register_read, to fill in the new arguments. * frame.h (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. * valops.c: (value_assign): Adjust, and handle get_frame_register_bytes failing. * spu-tdep.c: Include exceptions.h. (spu_software_single_step): Adjust, and handle get_frame_register_bytes failing. (spu_get_longjmp_target): Ditto. * gdbarch.sh (register_to_value): Change to return int. New parameters `optimizedp' and `unavailablep'. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_register_to_value): Adjust to new gdbarch_register_to_value interface. * i387-tdep.c (i387_register_to_value): Ditto. * i387-tdep.h (i387_register_to_value): Ditto. * alpha-tdep.c (alpha_register_to_value): Ditto. * ia64-tdep.c (ia64_register_to_value): Ditto. * m68k-tdep.c (m68k_register_to_value): Ditto. * mips-tdep.c (mips_register_to_value): Ditto. * rs6000-tdep.c (rs6000_register_to_value): Ditto.
2011-03-18 18:42:41 +00:00
if (unavail)
Convert the unavailable vector to be bit, not byte, based. https://sourceware.org/ml/gdb-patches/2013-12/msg00144.html The vector of unavailable parts of a value is currently byte based. Given that we can model a value down to the bit level, we can potentially loose information with the current implementation. After this patch we model the unavailable information in bits. gdb/ChangeLog * dwarf2loc.c (read_pieced_value): Mark bits, not bytes unavailable, use correct bit length. * value.c (struct value): Extend comment on unavailable to indicate that it is bit based. (value_bits_available): New function. (value_bytes_available): Call value_bits_available. (value_entirely_available): Check against the bit length, not byte length. (mark_value_bits_unavailable): New function. (mark_value_bytes_unavailable): Move contents to mark_value_bits_unavailable, call to same. (memcmp_with_bit_offsets): New function. (value_available_contents_bits_eq): New function, takes the functionality from value_available_contents_eq but uses memcmp_with_bit_offsets now, and is bit not byte based. (value_available_contents_eq): Move implementation into value_available_contents_bits_eq, call to same. (value_contents_copy_raw): Work on bits, not bytes. (unpack_value_bits_as_long_1): Check availability in bits, not bytes. * value.h (value_bits_available): Declare new function. (mark_value_bits_unavailable): Declare new function. gdb/testsuite/ChangeLog * gdb.trace/unavailable-dwarf-piece.c: New file. * gdb.trace/unavailable-dwarf-piece.exp: New file.
2013-12-17 17:18:44 +00:00
mark_value_bits_unavailable (v, offset, this_size_bits);
gdb/ * dwarf2loc.c (read_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. (write_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out when doing a read-modify write of a bitfield. * findvar.c (value_from_register): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. * frame.c (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. Throw error on bad debug info. Use frame_register instead of frame_register_read, to fill in the new arguments. * frame.h (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. * valops.c: (value_assign): Adjust, and handle get_frame_register_bytes failing. * spu-tdep.c: Include exceptions.h. (spu_software_single_step): Adjust, and handle get_frame_register_bytes failing. (spu_get_longjmp_target): Ditto. * gdbarch.sh (register_to_value): Change to return int. New parameters `optimizedp' and `unavailablep'. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_register_to_value): Adjust to new gdbarch_register_to_value interface. * i387-tdep.c (i387_register_to_value): Ditto. * i387-tdep.h (i387_register_to_value): Ditto. * alpha-tdep.c (alpha_register_to_value): Ditto. * ia64-tdep.c (ia64_register_to_value): Ditto. * m68k-tdep.c (m68k_register_to_value): Ditto. * mips-tdep.c (mips_register_to_value): Ditto. * rs6000-tdep.c (rs6000_register_to_value): Ditto.
2011-03-18 18:42:41 +00:00
}
}
else
{
error (_("Unable to access DWARF register number %s"),
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
paddress (arch, p->v.regno));
}
}
break;
case DWARF_VALUE_MEMORY:
read_value_memory (v, offset,
p->v.mem.in_stack_memory,
p->v.mem.addr + source_offset,
buffer, this_size);
break;
case DWARF_VALUE_STACK:
{
size_t n = this_size;
if (n > c->addr_size - source_offset)
n = (c->addr_size >= source_offset
? c->addr_size - source_offset
: 0);
if (n == 0)
{
/* Nothing. */
}
else
{
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
const gdb_byte *val_bytes = value_contents_all (p->v.value);
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
intermediate_buffer = val_bytes + source_offset;
}
}
break;
case DWARF_VALUE_LITERAL:
{
size_t n = this_size;
if (n > p->v.literal.length - source_offset)
n = (p->v.literal.length >= source_offset
? p->v.literal.length - source_offset
: 0);
if (n != 0)
intermediate_buffer = p->v.literal.data + source_offset;
}
break;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
/* These bits show up as zeros -- but do not cause the value
to be considered optimized-out. */
case DWARF_VALUE_IMPLICIT_POINTER:
break;
case DWARF_VALUE_OPTIMIZED_OUT:
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
mark_value_bits_optimized_out (v, offset, this_size_bits);
break;
default:
internal_error (__FILE__, __LINE__, _("invalid location type"));
}
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
if (p->location != DWARF_VALUE_OPTIMIZED_OUT
&& p->location != DWARF_VALUE_IMPLICIT_POINTER)
copy_bitwise (contents, dest_offset_bits,
intermediate_buffer, source_offset_bits % 8,
this_size_bits, bits_big_endian);
offset += this_size_bits;
}
do_cleanups (cleanup);
}
static void
write_pieced_value (struct value *to, struct value *from)
{
int i;
long offset = 0;
ULONGEST bits_to_skip;
const gdb_byte *contents;
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 22:22:53 +00:00
struct piece_closure *c
= (struct piece_closure *) value_computed_closure (to);
struct frame_info *frame = frame_find_by_id (VALUE_FRAME_ID (to));
size_t type_len;
size_t buffer_size = 0;
-Wpointer-sign: char -> gdb_byte. -Wpointer-sign catches all these cases across the codebase that should be using gdb_byte for raw target bytes. I think these are all obvious, hence I've collapsed into a single patch. gdb/ 2013-04-19 Pedro Alves <palves@redhat.com> * aarch64-tdep.c (aarch64_default_breakpoint): Change type to gdb_byte[]. (aarch64_breakpoint_from_pc): Change return type to gdb_byte *. * ada-lang.c (ada_value_assign): Use gdb_byte. * alphanbsd-tdep.c (sigtramp_retcode): Change type to gdb_byte[]. (alphanbsd_sigtramp_offset): Use gdb_byte. * arm-linux-tdep.c (arm_linux_arm_le_breakpoint) (arm_linux_arm_be_breakpoint, eabi_linux_arm_le_breakpoint) (eabi_linux_arm_be_breakpoint, arm_linux_thumb_be_breakpoint) (arm_linux_thumb_le_breakpoint, arm_linux_thumb2_be_breakpoint) (arm_linux_thumb2_le_breakpoint): Change type to gdb_byte[]. * arm-tdep.c (arm_stub_unwind_sniffer) (arm_displaced_init_closure): Use gdb_byte. (arm_default_arm_le_breakpoint, arm_default_arm_be_breakpoint) (arm_default_thumb_le_breakpoint) (arm_default_thumb_be_breakpoint): Change type to gdb_byte[]. * arm-tdep.h (struct gdbarch_tdep) <arm_breakpoint, thumb_breakpoint, thumb2_breakpoint>: Change type to gdb_byte *. * arm-wince-tdep.c (arm_wince_le_breakpoint) (arm_wince_thumb_le_breakpoint): Change type to gdb_byte[]. * armnbsd-tdep.c (arm_nbsd_arm_le_breakpoint) (arm_nbsd_arm_be_breakpoint, arm_nbsd_thumb_le_breakpoint) (arm_nbsd_thumb_be_breakpoint): Change type to gdb_byte[]. * armobsd-tdep.c (arm_obsd_thumb_le_breakpoint) (arm_obsd_thumb_be_breakpoint): Change type to gdb_byte[]. * cris-tdep.c (push_stack_item, cris_push_dummy_call) (cris_store_return_value, cris_extract_return_value): Use gdb_byte. (constraint): Change type of parameter to char * from signed char*. Use gdb_byte. * dwarf2loc.c (read_pieced_value, write_pieced_value): Change type of local buffer to gdb_byte *. * dwarf2read.c (read_index_from_section): Use gdb_byte. (create_dwp_hash_table): Change type of locals to gdb_byte *. (add_address_entry): Change type of local buffer to gdb_byte[]. * frv-tdep.c (frv_adjust_breakpoint_address, find_func_descr) (frv_push_dummy_call): Use gdb_byte. * hppa-hpux-tdep.c (hppa_hpux_push_dummy_code) (hppa_hpux_supply_ss_fpblock, hppa_hpux_supply_ss_wide) (hppa_hpux_supply_save_state): Use gdb_byte. * hppa-tdep.c (hppa32_push_dummy_call) (hppa64_convert_code_addr_to_fptr): Use gdb_byte. * ia64-tdep.c (extract_bit_field, replace_bit_field) (slotN_contents, replace_slotN_contents): Change type of parameter to gdb_byte *. (fetch_instruction, ia64_pseudo_register_write) (ia64_register_to_value, ia64_value_to_register) (ia64_extract_return_value, ia64_store_return_value) (ia64_push_dummy_call): Use gdb_byte. * m32c-tdep.c (m32c_return_value): Remove cast. * m68hc11-tdep.c (m68hc11_pseudo_register_write) (m68hc11_push_dummy_call, m68hc11_store_return_value): Use gdb_byte. * mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Use gdb_byte. * mn10300-tdep.c (mn10300_store_return_value) (mn10300_breakpoint_from_pc, mn10300_push_dummy_call): Use gdb_byte. * moxie-tdep.c (moxie_process_readu): Use gdb_byte. (moxie_process_record): Remove casts. * ppc-ravenscar-thread.c (supply_register_at_address) (ppc_ravenscar_generic_store_registers): Use gdb_byte. * ravenscar-thread.c (get_running_thread_id): Use gdb_byte. * remote-m32r-sdi.c (m32r_fetch_register): Use gdb_byte. * remote-mips.c (mips_xfer_memory): Use gdb_byte. * remote.c (compare_sections_command): Use gdb_byte. * score-tdep.c (score7_free_memblock): Change type of parameter to gdb_byte *. * sh-tdep.c (sh_justify_value_in_reg): Change return type to gdb_byte *. Use gdb_byte. (sh_push_dummy_call_fpu): Use gdb_byte. (sh_extract_return_value_nofpu, sh_extract_return_value_fpu) (sh_store_return_value_nofpu, sh_store_return_value_fpu) (sh_register_convert_to_virtual, sh_register_convert_to_raw): Change parameter type to 'gdb_byte *'. Use gdb_byte. (sh_pseudo_register_read, sh_pseudo_register_write): Use gdb_byte. * sh64-tdep.c (sh64_push_dummy_call): Use gdb_byte. (sh64_store_return_value, sh64_register_convert_to_virtual): Change parameter type to 'gdb_byte *'. Use gdb_byte. (sh64_pseudo_register_write): Use gdb_byte. * solib-darwin.c (darwin_current_sos): Add casts to 'gdb_byte *'. * solib-irix.c (fetch_lm_info): Likewise. Use gdb_byte for byte buffer. (irix_current_sos): Use gdb_byte. * solib-som.c (som_current_sos): Use gdb_byte. * sparc-ravenscar-thread.c (supply_register_at_address) (sparc_ravenscar_generic_store_registers): Use gdb_byte. * spu-multiarch.c (spu_xfer_partial): Add cast to 'char *'. * spu-tdep.c (spu_get_overlay_table): Use gdb_byte. * tic6x-tdep.c (tic6x_breakpoint_from_pc): Change return type to 'gdb_byte *'. * tic6x-tdep.h (struct gdbarch_tdep) <breakpoint>: Change type to 'gdb_byte *'. * tracepoint.c (tfile_fetch_registers): Use gdb_byte. * xstormy16-tdep.c (xstormy16_extract_return_value) (xstormy16_store_return_value): Change parameter type to 'gdb_byte *'. Adjust. (xstormy16_push_dummy_call): Use gdb_byte. * xtensa-tdep.c (xtensa_scan_prologue, call0_ret) (call0_analyze_prologue, execute_code): Use gdb_byte.
2013-04-19 15:09:46 +00:00
gdb_byte *buffer = NULL;
struct cleanup *cleanup;
int bits_big_endian
= gdbarch_bits_big_endian (get_type_arch (value_type (to)));
if (frame == NULL)
{
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
mark_value_bytes_optimized_out (to, 0, TYPE_LENGTH (value_type (to)));
return;
}
cleanup = make_cleanup (free_current_contents, &buffer);
contents = value_contents (from);
bits_to_skip = 8 * value_offset (to);
gdb PR gdb/9977, PR exp/11636: * value.h (value_offset): Update. (struct lval_funcs) <check_validity>: New field. <copy_closure>: Make argument const. (value_computed_closure): Update. (value_contents_for_printing): Declare. (value_bits_valid): Likewise. (val_print): Likewise. (set_value_component_location): Update. (value_entirely_optimized_out): Declare. * value.c (value_offset): Argument now const. (require_not_optimized_out): New function. (value_contents_for_printing): New function. (value_contents_all): Call require_not_optimized_out. (value_contents): Likewise. (value_bits_valid): New function. (value_computed_closure): Argument now const. (set_value_component_location): Make 'whole' argument const. (value_entirely_optimized_out): New function. (value_bitsize): Argument now 'const'. (value_bitpos): Likewise. (value_type): Likewise. * valprint.h (val_print_array_elements): Update. * valprint.c (val_print): Add 'val' argument. Use valprint_check_validity. (valprint_check_validity): New function. (value_check_printable): Use value_entirely_optimized_out. (common_val_print): Update. (value_print): Likewise. (val_print_array_elements): Add 'val' argument. * valops.c (value_fetch_lazy): Use value_contents_for_printing, value_bits_valid. Reinit frame cache for lval_computed. * sh64-tdep.c (sh64_do_register): Update. * scm-valprint.c (scm_val_print): Add 'val' argument. * scm-lang.h (scm_val_print): Update. * python/python.h (apply_val_pretty_printer): Update. * python/py-prettyprint.c (apply_val_pretty_printer): Add 'val' argument. Call set_value_component_location. * printcmd.c (print_scalar_formatted): Update. * p-valprint.c (pascal_val_print): Add 'val' argument. (pascal_object_print_value_fields): Likewise. (pascal_object_print_value): Likewise. (pascal_object_print_static_field): Update. * p-lang.h (pascal_val_print): Update. (pascal_object_print_value_fields): Update. * mt-tdep.c (mt_registers_info): Update. * mi/mi-main.c (get_register): Update. (mi_cmd_data_evaluate_expression): Use common_val_print. * m2-valprint.c (m2_print_array_contents): Add 'val' argument. (m2_print_unbounded_array): Likewise. (m2_val_print): Likewise. * m2-lang.h (m2_val_print): Update. * language.h (struct language_defn) <la_val_print>: Add 'val' argument. (LA_VAL_PRINT): Likewise. * language.c (unk_lang_val_print): Add 'val' argument. * jv-valprint.c (java_print_value_fields): Add 'val' argument. (java_val_print): Likewise. * jv-lang.h (java_val_print): Add 'val' argument. * infcmd.c (default_print_registers_info): Update. * f-valprint.c (f77_print_array_1): Add 'val' argument. (f77_print_array): Likewise. (f_val_print): Likewise. * f-lang.h (f_val_print): Add 'val' argument. * dwarf2loc.c (read_pieced_value): Use value_bitsize and value_bitpos. <DWARF_VALUE_OPTIMIZED_OUT>: Don't print warning. Call set_value_optimized_out. (write_pieced_value): Use value_bitsize and value_bitpos. <default>: Don't exit loop. (check_pieced_value_validity): New function. (pieced_value_funcs): Reference check_pieced_value_validity, check_pieced_value_invalid. (copy_pieced_value_closure): Update. (check_pieced_value_bits): New function. (check_pieced_value_invalid): New function. * d-valprint.c (dynamic_array_type): Add 'val' argument. (d_val_print): Likewise. * d-lang.h (d_val_print): Update. * cp-valprint.c (cp_print_value_fields): Add 'val' argument. (cp_print_value_fields_rtti): Likewise. (cp_print_value): Likewise. (cp_print_static_field): Update. * c-valprint.c (c_val_print): Add 'val' argument. (c_value_print): Update. * c-lang.h (c_val_print): Update. (cp_print_value_fields): Likewise. (cp_print_value_fields_rtti): Likewise. * ada-valprint.c (struct ada_val_print_args): Remove. (val_print_packed_array_elements): Add 'val' argument. (ada_val_print): Likewise. Rewrite. (ada_val_print_stub): Remove. (ada_val_print_array): Add 'val' argument. (ada_val_print_1): Likewise. (print_variant_part): Likewise. (ada_value_print): Update. (print_record): Add 'val' argument. (print_field_values): Likewise. * ada-lang.h (ada_val_print): Update. gdb/testsuite PR gdb/9977, PR exp/11636:: * gdb.dwarf2/pieces.exp (pieces_test_f3): Remove kfail. (pieces_test_f6): Update expected output.
2010-06-11 15:36:10 +00:00
if (value_bitsize (to))
{
bits_to_skip += value_bitpos (to);
type_len = value_bitsize (to);
}
else
type_len = 8 * TYPE_LENGTH (value_type (to));
for (i = 0; i < c->n_pieces && offset < type_len; i++)
{
struct dwarf_expr_piece *p = &c->pieces[i];
size_t this_size_bits, this_size;
long dest_offset_bits, source_offset_bits, dest_offset, source_offset;
int need_bitwise;
const gdb_byte *source_buffer;
this_size_bits = p->size;
if (bits_to_skip > 0 && bits_to_skip >= this_size_bits)
{
bits_to_skip -= this_size_bits;
continue;
}
if (this_size_bits > type_len - offset)
this_size_bits = type_len - offset;
if (bits_to_skip > 0)
{
dest_offset_bits = bits_to_skip;
source_offset_bits = 0;
this_size_bits -= bits_to_skip;
bits_to_skip = 0;
}
else
{
dest_offset_bits = 0;
source_offset_bits = offset;
}
this_size = (this_size_bits + source_offset_bits % 8 + 7) / 8;
source_offset = source_offset_bits / 8;
dest_offset = dest_offset_bits / 8;
if (dest_offset_bits % 8 == 0 && source_offset_bits % 8 == 0)
{
source_buffer = contents + source_offset;
need_bitwise = 0;
}
else
{
if (buffer_size < this_size)
{
buffer_size = this_size;
buffer = xrealloc (buffer, buffer_size);
}
source_buffer = buffer;
need_bitwise = 1;
}
switch (p->location)
{
case DWARF_VALUE_REGISTER:
{
struct gdbarch *arch = get_frame_arch (frame);
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
int gdb_regnum = gdbarch_dwarf2_reg_to_regnum (arch, p->v.regno);
if (gdb_regnum != -1)
{
read_pieced_value do big endian processing only in case of valid gdb_regnum During armv7b testing gdb.base/store.exp test was failling with 'GDB internal error' with the following message: Temporary breakpoint 1, wack_double (u= ../../binutils-gdb/gdb/regcache.c:177: internal-error: register_size: Assertion `regnum >= 0 && regnum < (gdbarch_num_regs (gdbarch) + gdbarch_num_pseudo_regs (gdbarch))' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. It turns out that compiler generated DWARF with non-existent register numbers. The compiler issue is present in both little endian (armv7) and big endian (armv7b) (it is separate issue). Here is example for one of formal parameters of wack_double function: <2><792>: Abbrev Number: 10 (DW_TAG_formal_parameter) <793> DW_AT_name : u <795> DW_AT_decl_file : 1 <796> DW_AT_decl_line : 115 <797> DW_AT_type : <0x57c> <79b> DW_AT_location : 6 byte block: 6d 93 4 6c 93 4 (DW_OP_reg29 (r29); DW_OP_piece: 4; DW_OP_reg28 (r28); DW_OP_piece: 4) In both big and little endian cases gdbarch_dwarf2_reg_to_regnum returns -1 which is stored into gdb_regnum. But it causes severe problem only in big endian case because in read_pieced_value and write_pieced_value functions BFD_ENDIAN_BIG related processing happen regardless of gdb_regnum value, for example register_size function is called and in case of gdb_regnum=-1, it cause 'GDB internal error' and crash. Solution is to move BFD_ENDIAN_BIG related processing under (gdb_regnum != -1) branch of processing. gdb/ChangeLog: 2014-11-02 Victor Kamensky <victor.kamensky@linaro.org> * dwarf2loc.c (read_pieced_value): Do big endian processing only if gdb_regnum is not -1. (write_pieced_value): Ditto.
2014-11-02 21:28:35 +00:00
int reg_offset = dest_offset;
if (gdbarch_byte_order (arch) == BFD_ENDIAN_BIG
&& this_size <= register_size (arch, gdb_regnum))
{
/* Big-endian, and we want less than full size. */
reg_offset = register_size (arch, gdb_regnum) - this_size;
}
if (need_bitwise)
{
gdb/ * dwarf2loc.c (read_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. (write_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out when doing a read-modify write of a bitfield. * findvar.c (value_from_register): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. * frame.c (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. Throw error on bad debug info. Use frame_register instead of frame_register_read, to fill in the new arguments. * frame.h (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. * valops.c: (value_assign): Adjust, and handle get_frame_register_bytes failing. * spu-tdep.c: Include exceptions.h. (spu_software_single_step): Adjust, and handle get_frame_register_bytes failing. (spu_get_longjmp_target): Ditto. * gdbarch.sh (register_to_value): Change to return int. New parameters `optimizedp' and `unavailablep'. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_register_to_value): Adjust to new gdbarch_register_to_value interface. * i387-tdep.c (i387_register_to_value): Ditto. * i387-tdep.h (i387_register_to_value): Ditto. * alpha-tdep.c (alpha_register_to_value): Ditto. * ia64-tdep.c (ia64_register_to_value): Ditto. * m68k-tdep.c (m68k_register_to_value): Ditto. * mips-tdep.c (mips_register_to_value): Ditto. * rs6000-tdep.c (rs6000_register_to_value): Ditto.
2011-03-18 18:42:41 +00:00
int optim, unavail;
if (!get_frame_register_bytes (frame, gdb_regnum, reg_offset,
this_size, buffer,
&optim, &unavail))
{
if (optim)
throw_error (OPTIMIZED_OUT_ERROR,
_("Can't do read-modify-write to "
"update bitfield; containing word "
"has been optimized out"));
gdb/ * dwarf2loc.c (read_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. (write_pieced_value): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out when doing a read-modify write of a bitfield. * findvar.c (value_from_register): Handle get_frame_register_bytes returning that the register piece is unavailable/optimized out. * frame.c (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. Throw error on bad debug info. Use frame_register instead of frame_register_read, to fill in the new arguments. * frame.h (get_frame_register_bytes): New parameters `optimizedp' and `unavailablep'. * valops.c: (value_assign): Adjust, and handle get_frame_register_bytes failing. * spu-tdep.c: Include exceptions.h. (spu_software_single_step): Adjust, and handle get_frame_register_bytes failing. (spu_get_longjmp_target): Ditto. * gdbarch.sh (register_to_value): Change to return int. New parameters `optimizedp' and `unavailablep'. * gdbarch.h, gdbarch.c: Regenerate. * i386-tdep.c (i386_register_to_value): Adjust to new gdbarch_register_to_value interface. * i387-tdep.c (i387_register_to_value): Ditto. * i387-tdep.h (i387_register_to_value): Ditto. * alpha-tdep.c (alpha_register_to_value): Ditto. * ia64-tdep.c (ia64_register_to_value): Ditto. * m68k-tdep.c (m68k_register_to_value): Ditto. * mips-tdep.c (mips_register_to_value): Ditto. * rs6000-tdep.c (rs6000_register_to_value): Ditto.
2011-03-18 18:42:41 +00:00
if (unavail)
throw_error (NOT_AVAILABLE_ERROR,
_("Can't do read-modify-write to update "
"bitfield; containing word "
"is unavailable"));
}
copy_bitwise (buffer, dest_offset_bits,
contents, source_offset_bits,
this_size_bits,
bits_big_endian);
}
put_frame_register_bytes (frame, gdb_regnum, reg_offset,
this_size, source_buffer);
}
else
{
error (_("Unable to write to DWARF register number %s"),
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
paddress (arch, p->v.regno));
}
}
break;
case DWARF_VALUE_MEMORY:
if (need_bitwise)
{
/* Only the first and last bytes can possibly have any
bits reused. */
ChangeLog: * dwarf2expr.h (struct dwarf_value_location): Use ULONGEST as type of stack values. (struct dwarf_expr_piece): Rename "expr" member to "mem". Add new "value" member. (dwarf_expr_push): Change input type to ULONGEST. (dwarf_expr_fetch): Change return type to ULONGEST. (dwarf_expr_fetch_address): Add prototype. (dwarf2_read_address): Remove prototype. * dwarf2expr.c (dwarf_expr_push): Use ULONGEST as type of stack values. Truncate stack values to ctx->addr_size bytes. (dwarf_expr_fetch): Change return value to ULONGEST. (dwarf_expr_fetch_address): New function. (add_piece): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. Update for struct dwarf_expr_piece changes. (dwarf2_read_address): Remove. (unsigned_address_type): Remove. (signed_address_type): Remove. (execute_stack_op): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. Use ULONGEST as type of stack values. Perform operations on ULONGEST instead of on GDB values, sign-extending from ctx->addr_size bytes as needed. Read DW_OP_addr values and DW_OP_deref results as unsigned integers. * dwarf2loc.c (read_pieced_value): Update for struct dwarf_expr_piece changes. (write_pieced_value): Likewise. (dwarf2_evaluate_loc_desc): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. (compile_dwarf_to_ax): Read DW_OP_addr values as unsigned integers. * dwarf2-frame.c (execute_stack_op): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. testsuite/ChangeLog: * gdb.cell/dwarfaddr.exp: New file. * gdb.cell/dwarfaddr.S: New file.
2010-06-25 13:00:33 +00:00
read_memory (p->v.mem.addr + dest_offset, buffer, 1);
read_memory (p->v.mem.addr + dest_offset + this_size - 1,
buffer + this_size - 1, 1);
copy_bitwise (buffer, dest_offset_bits,
contents, source_offset_bits,
this_size_bits,
bits_big_endian);
}
ChangeLog: * dwarf2expr.h (struct dwarf_value_location): Use ULONGEST as type of stack values. (struct dwarf_expr_piece): Rename "expr" member to "mem". Add new "value" member. (dwarf_expr_push): Change input type to ULONGEST. (dwarf_expr_fetch): Change return type to ULONGEST. (dwarf_expr_fetch_address): Add prototype. (dwarf2_read_address): Remove prototype. * dwarf2expr.c (dwarf_expr_push): Use ULONGEST as type of stack values. Truncate stack values to ctx->addr_size bytes. (dwarf_expr_fetch): Change return value to ULONGEST. (dwarf_expr_fetch_address): New function. (add_piece): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. Update for struct dwarf_expr_piece changes. (dwarf2_read_address): Remove. (unsigned_address_type): Remove. (signed_address_type): Remove. (execute_stack_op): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. Use ULONGEST as type of stack values. Perform operations on ULONGEST instead of on GDB values, sign-extending from ctx->addr_size bytes as needed. Read DW_OP_addr values and DW_OP_deref results as unsigned integers. * dwarf2loc.c (read_pieced_value): Update for struct dwarf_expr_piece changes. (write_pieced_value): Likewise. (dwarf2_evaluate_loc_desc): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. (compile_dwarf_to_ax): Read DW_OP_addr values as unsigned integers. * dwarf2-frame.c (execute_stack_op): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. testsuite/ChangeLog: * gdb.cell/dwarfaddr.exp: New file. * gdb.cell/dwarfaddr.S: New file.
2010-06-25 13:00:33 +00:00
write_memory (p->v.mem.addr + dest_offset,
source_buffer, this_size);
break;
default:
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
mark_value_bytes_optimized_out (to, 0, TYPE_LENGTH (value_type (to)));
gdb PR gdb/9977, PR exp/11636: * value.h (value_offset): Update. (struct lval_funcs) <check_validity>: New field. <copy_closure>: Make argument const. (value_computed_closure): Update. (value_contents_for_printing): Declare. (value_bits_valid): Likewise. (val_print): Likewise. (set_value_component_location): Update. (value_entirely_optimized_out): Declare. * value.c (value_offset): Argument now const. (require_not_optimized_out): New function. (value_contents_for_printing): New function. (value_contents_all): Call require_not_optimized_out. (value_contents): Likewise. (value_bits_valid): New function. (value_computed_closure): Argument now const. (set_value_component_location): Make 'whole' argument const. (value_entirely_optimized_out): New function. (value_bitsize): Argument now 'const'. (value_bitpos): Likewise. (value_type): Likewise. * valprint.h (val_print_array_elements): Update. * valprint.c (val_print): Add 'val' argument. Use valprint_check_validity. (valprint_check_validity): New function. (value_check_printable): Use value_entirely_optimized_out. (common_val_print): Update. (value_print): Likewise. (val_print_array_elements): Add 'val' argument. * valops.c (value_fetch_lazy): Use value_contents_for_printing, value_bits_valid. Reinit frame cache for lval_computed. * sh64-tdep.c (sh64_do_register): Update. * scm-valprint.c (scm_val_print): Add 'val' argument. * scm-lang.h (scm_val_print): Update. * python/python.h (apply_val_pretty_printer): Update. * python/py-prettyprint.c (apply_val_pretty_printer): Add 'val' argument. Call set_value_component_location. * printcmd.c (print_scalar_formatted): Update. * p-valprint.c (pascal_val_print): Add 'val' argument. (pascal_object_print_value_fields): Likewise. (pascal_object_print_value): Likewise. (pascal_object_print_static_field): Update. * p-lang.h (pascal_val_print): Update. (pascal_object_print_value_fields): Update. * mt-tdep.c (mt_registers_info): Update. * mi/mi-main.c (get_register): Update. (mi_cmd_data_evaluate_expression): Use common_val_print. * m2-valprint.c (m2_print_array_contents): Add 'val' argument. (m2_print_unbounded_array): Likewise. (m2_val_print): Likewise. * m2-lang.h (m2_val_print): Update. * language.h (struct language_defn) <la_val_print>: Add 'val' argument. (LA_VAL_PRINT): Likewise. * language.c (unk_lang_val_print): Add 'val' argument. * jv-valprint.c (java_print_value_fields): Add 'val' argument. (java_val_print): Likewise. * jv-lang.h (java_val_print): Add 'val' argument. * infcmd.c (default_print_registers_info): Update. * f-valprint.c (f77_print_array_1): Add 'val' argument. (f77_print_array): Likewise. (f_val_print): Likewise. * f-lang.h (f_val_print): Add 'val' argument. * dwarf2loc.c (read_pieced_value): Use value_bitsize and value_bitpos. <DWARF_VALUE_OPTIMIZED_OUT>: Don't print warning. Call set_value_optimized_out. (write_pieced_value): Use value_bitsize and value_bitpos. <default>: Don't exit loop. (check_pieced_value_validity): New function. (pieced_value_funcs): Reference check_pieced_value_validity, check_pieced_value_invalid. (copy_pieced_value_closure): Update. (check_pieced_value_bits): New function. (check_pieced_value_invalid): New function. * d-valprint.c (dynamic_array_type): Add 'val' argument. (d_val_print): Likewise. * d-lang.h (d_val_print): Update. * cp-valprint.c (cp_print_value_fields): Add 'val' argument. (cp_print_value_fields_rtti): Likewise. (cp_print_value): Likewise. (cp_print_static_field): Update. * c-valprint.c (c_val_print): Add 'val' argument. (c_value_print): Update. * c-lang.h (c_val_print): Update. (cp_print_value_fields): Likewise. (cp_print_value_fields_rtti): Likewise. * ada-valprint.c (struct ada_val_print_args): Remove. (val_print_packed_array_elements): Add 'val' argument. (ada_val_print): Likewise. Rewrite. (ada_val_print_stub): Remove. (ada_val_print_array): Add 'val' argument. (ada_val_print_1): Likewise. (print_variant_part): Likewise. (ada_value_print): Update. (print_record): Add 'val' argument. (print_field_values): Likewise. * ada-lang.h (ada_val_print): Update. gdb/testsuite PR gdb/9977, PR exp/11636:: * gdb.dwarf2/pieces.exp (pieces_test_f3): Remove kfail. (pieces_test_f6): Update expected output.
2010-06-11 15:36:10 +00:00
break;
}
offset += this_size_bits;
}
do_cleanups (cleanup);
}
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
/* An implementation of an lval_funcs method to see whether a value is
a synthetic pointer. */
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
gdb PR gdb/9977, PR exp/11636: * value.h (value_offset): Update. (struct lval_funcs) <check_validity>: New field. <copy_closure>: Make argument const. (value_computed_closure): Update. (value_contents_for_printing): Declare. (value_bits_valid): Likewise. (val_print): Likewise. (set_value_component_location): Update. (value_entirely_optimized_out): Declare. * value.c (value_offset): Argument now const. (require_not_optimized_out): New function. (value_contents_for_printing): New function. (value_contents_all): Call require_not_optimized_out. (value_contents): Likewise. (value_bits_valid): New function. (value_computed_closure): Argument now const. (set_value_component_location): Make 'whole' argument const. (value_entirely_optimized_out): New function. (value_bitsize): Argument now 'const'. (value_bitpos): Likewise. (value_type): Likewise. * valprint.h (val_print_array_elements): Update. * valprint.c (val_print): Add 'val' argument. Use valprint_check_validity. (valprint_check_validity): New function. (value_check_printable): Use value_entirely_optimized_out. (common_val_print): Update. (value_print): Likewise. (val_print_array_elements): Add 'val' argument. * valops.c (value_fetch_lazy): Use value_contents_for_printing, value_bits_valid. Reinit frame cache for lval_computed. * sh64-tdep.c (sh64_do_register): Update. * scm-valprint.c (scm_val_print): Add 'val' argument. * scm-lang.h (scm_val_print): Update. * python/python.h (apply_val_pretty_printer): Update. * python/py-prettyprint.c (apply_val_pretty_printer): Add 'val' argument. Call set_value_component_location. * printcmd.c (print_scalar_formatted): Update. * p-valprint.c (pascal_val_print): Add 'val' argument. (pascal_object_print_value_fields): Likewise. (pascal_object_print_value): Likewise. (pascal_object_print_static_field): Update. * p-lang.h (pascal_val_print): Update. (pascal_object_print_value_fields): Update. * mt-tdep.c (mt_registers_info): Update. * mi/mi-main.c (get_register): Update. (mi_cmd_data_evaluate_expression): Use common_val_print. * m2-valprint.c (m2_print_array_contents): Add 'val' argument. (m2_print_unbounded_array): Likewise. (m2_val_print): Likewise. * m2-lang.h (m2_val_print): Update. * language.h (struct language_defn) <la_val_print>: Add 'val' argument. (LA_VAL_PRINT): Likewise. * language.c (unk_lang_val_print): Add 'val' argument. * jv-valprint.c (java_print_value_fields): Add 'val' argument. (java_val_print): Likewise. * jv-lang.h (java_val_print): Add 'val' argument. * infcmd.c (default_print_registers_info): Update. * f-valprint.c (f77_print_array_1): Add 'val' argument. (f77_print_array): Likewise. (f_val_print): Likewise. * f-lang.h (f_val_print): Add 'val' argument. * dwarf2loc.c (read_pieced_value): Use value_bitsize and value_bitpos. <DWARF_VALUE_OPTIMIZED_OUT>: Don't print warning. Call set_value_optimized_out. (write_pieced_value): Use value_bitsize and value_bitpos. <default>: Don't exit loop. (check_pieced_value_validity): New function. (pieced_value_funcs): Reference check_pieced_value_validity, check_pieced_value_invalid. (copy_pieced_value_closure): Update. (check_pieced_value_bits): New function. (check_pieced_value_invalid): New function. * d-valprint.c (dynamic_array_type): Add 'val' argument. (d_val_print): Likewise. * d-lang.h (d_val_print): Update. * cp-valprint.c (cp_print_value_fields): Add 'val' argument. (cp_print_value_fields_rtti): Likewise. (cp_print_value): Likewise. (cp_print_static_field): Update. * c-valprint.c (c_val_print): Add 'val' argument. (c_value_print): Update. * c-lang.h (c_val_print): Update. (cp_print_value_fields): Likewise. (cp_print_value_fields_rtti): Likewise. * ada-valprint.c (struct ada_val_print_args): Remove. (val_print_packed_array_elements): Add 'val' argument. (ada_val_print): Likewise. Rewrite. (ada_val_print_stub): Remove. (ada_val_print_array): Add 'val' argument. (ada_val_print_1): Likewise. (print_variant_part): Likewise. (ada_value_print): Update. (print_record): Add 'val' argument. (print_field_values): Likewise. * ada-lang.h (ada_val_print): Update. gdb/testsuite PR gdb/9977, PR exp/11636:: * gdb.dwarf2/pieces.exp (pieces_test_f3): Remove kfail. (pieces_test_f6): Update expected output.
2010-06-11 15:36:10 +00:00
static int
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
check_pieced_synthetic_pointer (const struct value *value, int bit_offset,
int bit_length)
gdb PR gdb/9977, PR exp/11636: * value.h (value_offset): Update. (struct lval_funcs) <check_validity>: New field. <copy_closure>: Make argument const. (value_computed_closure): Update. (value_contents_for_printing): Declare. (value_bits_valid): Likewise. (val_print): Likewise. (set_value_component_location): Update. (value_entirely_optimized_out): Declare. * value.c (value_offset): Argument now const. (require_not_optimized_out): New function. (value_contents_for_printing): New function. (value_contents_all): Call require_not_optimized_out. (value_contents): Likewise. (value_bits_valid): New function. (value_computed_closure): Argument now const. (set_value_component_location): Make 'whole' argument const. (value_entirely_optimized_out): New function. (value_bitsize): Argument now 'const'. (value_bitpos): Likewise. (value_type): Likewise. * valprint.h (val_print_array_elements): Update. * valprint.c (val_print): Add 'val' argument. Use valprint_check_validity. (valprint_check_validity): New function. (value_check_printable): Use value_entirely_optimized_out. (common_val_print): Update. (value_print): Likewise. (val_print_array_elements): Add 'val' argument. * valops.c (value_fetch_lazy): Use value_contents_for_printing, value_bits_valid. Reinit frame cache for lval_computed. * sh64-tdep.c (sh64_do_register): Update. * scm-valprint.c (scm_val_print): Add 'val' argument. * scm-lang.h (scm_val_print): Update. * python/python.h (apply_val_pretty_printer): Update. * python/py-prettyprint.c (apply_val_pretty_printer): Add 'val' argument. Call set_value_component_location. * printcmd.c (print_scalar_formatted): Update. * p-valprint.c (pascal_val_print): Add 'val' argument. (pascal_object_print_value_fields): Likewise. (pascal_object_print_value): Likewise. (pascal_object_print_static_field): Update. * p-lang.h (pascal_val_print): Update. (pascal_object_print_value_fields): Update. * mt-tdep.c (mt_registers_info): Update. * mi/mi-main.c (get_register): Update. (mi_cmd_data_evaluate_expression): Use common_val_print. * m2-valprint.c (m2_print_array_contents): Add 'val' argument. (m2_print_unbounded_array): Likewise. (m2_val_print): Likewise. * m2-lang.h (m2_val_print): Update. * language.h (struct language_defn) <la_val_print>: Add 'val' argument. (LA_VAL_PRINT): Likewise. * language.c (unk_lang_val_print): Add 'val' argument. * jv-valprint.c (java_print_value_fields): Add 'val' argument. (java_val_print): Likewise. * jv-lang.h (java_val_print): Add 'val' argument. * infcmd.c (default_print_registers_info): Update. * f-valprint.c (f77_print_array_1): Add 'val' argument. (f77_print_array): Likewise. (f_val_print): Likewise. * f-lang.h (f_val_print): Add 'val' argument. * dwarf2loc.c (read_pieced_value): Use value_bitsize and value_bitpos. <DWARF_VALUE_OPTIMIZED_OUT>: Don't print warning. Call set_value_optimized_out. (write_pieced_value): Use value_bitsize and value_bitpos. <default>: Don't exit loop. (check_pieced_value_validity): New function. (pieced_value_funcs): Reference check_pieced_value_validity, check_pieced_value_invalid. (copy_pieced_value_closure): Update. (check_pieced_value_bits): New function. (check_pieced_value_invalid): New function. * d-valprint.c (dynamic_array_type): Add 'val' argument. (d_val_print): Likewise. * d-lang.h (d_val_print): Update. * cp-valprint.c (cp_print_value_fields): Add 'val' argument. (cp_print_value_fields_rtti): Likewise. (cp_print_value): Likewise. (cp_print_static_field): Update. * c-valprint.c (c_val_print): Add 'val' argument. (c_value_print): Update. * c-lang.h (c_val_print): Update. (cp_print_value_fields): Likewise. (cp_print_value_fields_rtti): Likewise. * ada-valprint.c (struct ada_val_print_args): Remove. (val_print_packed_array_elements): Add 'val' argument. (ada_val_print): Likewise. Rewrite. (ada_val_print_stub): Remove. (ada_val_print_array): Add 'val' argument. (ada_val_print_1): Likewise. (print_variant_part): Likewise. (ada_value_print): Update. (print_record): Add 'val' argument. (print_field_values): Likewise. * ada-lang.h (ada_val_print): Update. gdb/testsuite PR gdb/9977, PR exp/11636:: * gdb.dwarf2/pieces.exp (pieces_test_f3): Remove kfail. (pieces_test_f6): Update expected output.
2010-06-11 15:36:10 +00:00
{
struct piece_closure *c
= (struct piece_closure *) value_computed_closure (value);
int i;
bit_offset += 8 * value_offset (value);
if (value_bitsize (value))
bit_offset += value_bitpos (value);
for (i = 0; i < c->n_pieces && bit_length > 0; i++)
{
struct dwarf_expr_piece *p = &c->pieces[i];
size_t this_size_bits = p->size;
if (bit_offset > 0)
{
if (bit_offset >= this_size_bits)
{
bit_offset -= this_size_bits;
continue;
}
bit_length -= this_size_bits - bit_offset;
bit_offset = 0;
}
else
bit_length -= this_size_bits;
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
if (p->location != DWARF_VALUE_IMPLICIT_POINTER)
return 0;
gdb PR gdb/9977, PR exp/11636: * value.h (value_offset): Update. (struct lval_funcs) <check_validity>: New field. <copy_closure>: Make argument const. (value_computed_closure): Update. (value_contents_for_printing): Declare. (value_bits_valid): Likewise. (val_print): Likewise. (set_value_component_location): Update. (value_entirely_optimized_out): Declare. * value.c (value_offset): Argument now const. (require_not_optimized_out): New function. (value_contents_for_printing): New function. (value_contents_all): Call require_not_optimized_out. (value_contents): Likewise. (value_bits_valid): New function. (value_computed_closure): Argument now const. (set_value_component_location): Make 'whole' argument const. (value_entirely_optimized_out): New function. (value_bitsize): Argument now 'const'. (value_bitpos): Likewise. (value_type): Likewise. * valprint.h (val_print_array_elements): Update. * valprint.c (val_print): Add 'val' argument. Use valprint_check_validity. (valprint_check_validity): New function. (value_check_printable): Use value_entirely_optimized_out. (common_val_print): Update. (value_print): Likewise. (val_print_array_elements): Add 'val' argument. * valops.c (value_fetch_lazy): Use value_contents_for_printing, value_bits_valid. Reinit frame cache for lval_computed. * sh64-tdep.c (sh64_do_register): Update. * scm-valprint.c (scm_val_print): Add 'val' argument. * scm-lang.h (scm_val_print): Update. * python/python.h (apply_val_pretty_printer): Update. * python/py-prettyprint.c (apply_val_pretty_printer): Add 'val' argument. Call set_value_component_location. * printcmd.c (print_scalar_formatted): Update. * p-valprint.c (pascal_val_print): Add 'val' argument. (pascal_object_print_value_fields): Likewise. (pascal_object_print_value): Likewise. (pascal_object_print_static_field): Update. * p-lang.h (pascal_val_print): Update. (pascal_object_print_value_fields): Update. * mt-tdep.c (mt_registers_info): Update. * mi/mi-main.c (get_register): Update. (mi_cmd_data_evaluate_expression): Use common_val_print. * m2-valprint.c (m2_print_array_contents): Add 'val' argument. (m2_print_unbounded_array): Likewise. (m2_val_print): Likewise. * m2-lang.h (m2_val_print): Update. * language.h (struct language_defn) <la_val_print>: Add 'val' argument. (LA_VAL_PRINT): Likewise. * language.c (unk_lang_val_print): Add 'val' argument. * jv-valprint.c (java_print_value_fields): Add 'val' argument. (java_val_print): Likewise. * jv-lang.h (java_val_print): Add 'val' argument. * infcmd.c (default_print_registers_info): Update. * f-valprint.c (f77_print_array_1): Add 'val' argument. (f77_print_array): Likewise. (f_val_print): Likewise. * f-lang.h (f_val_print): Add 'val' argument. * dwarf2loc.c (read_pieced_value): Use value_bitsize and value_bitpos. <DWARF_VALUE_OPTIMIZED_OUT>: Don't print warning. Call set_value_optimized_out. (write_pieced_value): Use value_bitsize and value_bitpos. <default>: Don't exit loop. (check_pieced_value_validity): New function. (pieced_value_funcs): Reference check_pieced_value_validity, check_pieced_value_invalid. (copy_pieced_value_closure): Update. (check_pieced_value_bits): New function. (check_pieced_value_invalid): New function. * d-valprint.c (dynamic_array_type): Add 'val' argument. (d_val_print): Likewise. * d-lang.h (d_val_print): Update. * cp-valprint.c (cp_print_value_fields): Add 'val' argument. (cp_print_value_fields_rtti): Likewise. (cp_print_value): Likewise. (cp_print_static_field): Update. * c-valprint.c (c_val_print): Add 'val' argument. (c_value_print): Update. * c-lang.h (c_val_print): Update. (cp_print_value_fields): Likewise. (cp_print_value_fields_rtti): Likewise. * ada-valprint.c (struct ada_val_print_args): Remove. (val_print_packed_array_elements): Add 'val' argument. (ada_val_print): Likewise. Rewrite. (ada_val_print_stub): Remove. (ada_val_print_array): Add 'val' argument. (ada_val_print_1): Likewise. (print_variant_part): Likewise. (ada_value_print): Update. (print_record): Add 'val' argument. (print_field_values): Likewise. * ada-lang.h (ada_val_print): Update. gdb/testsuite PR gdb/9977, PR exp/11636:: * gdb.dwarf2/pieces.exp (pieces_test_f3): Remove kfail. (pieces_test_f6): Update expected output.
2010-06-11 15:36:10 +00:00
}
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
return 1;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
}
/* A wrapper function for get_frame_address_in_block. */
static CORE_ADDR
get_frame_address_in_block_wrapper (void *baton)
{
return get_frame_address_in_block (baton);
}
/* An implementation of an lval_funcs method to indirect through a
pointer. This handles the synthetic pointer case when needed. */
static struct value *
indirect_pieced_value (struct value *value)
{
struct piece_closure *c
= (struct piece_closure *) value_computed_closure (value);
struct type *type;
struct frame_info *frame;
struct dwarf2_locexpr_baton baton;
int i, bit_offset, bit_length;
struct dwarf_expr_piece *piece = NULL;
LONGEST byte_offset;
2014-12-28 08:12:53 +00:00
enum bfd_endian byte_order;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
type = check_typedef (value_type (value));
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
if (TYPE_CODE (type) != TYPE_CODE_PTR)
return NULL;
bit_length = 8 * TYPE_LENGTH (type);
bit_offset = 8 * value_offset (value);
if (value_bitsize (value))
bit_offset += value_bitpos (value);
for (i = 0; i < c->n_pieces && bit_length > 0; i++)
{
struct dwarf_expr_piece *p = &c->pieces[i];
size_t this_size_bits = p->size;
if (bit_offset > 0)
{
if (bit_offset >= this_size_bits)
{
bit_offset -= this_size_bits;
continue;
}
bit_length -= this_size_bits - bit_offset;
bit_offset = 0;
}
else
bit_length -= this_size_bits;
if (p->location != DWARF_VALUE_IMPLICIT_POINTER)
return NULL;
if (bit_length != 0)
error (_("Invalid use of DW_OP_GNU_implicit_pointer"));
piece = p;
break;
}
frame = get_selected_frame (_("No frame selected."));
Fix PR symtab/15391 PR symtab/15391 is a failure with the DW_OP_GNU_implicit_pointer feature. I tracked it down to a logic error in read_pieced_value. The code truncates this_size_bits according to the type size and offset too early -- it should do it after taking bits_to_skip into account. This patch fixes the bug. While testing this, I also tripped across a latent bug because indirect_pieced_value does not sign-extend where needed. This patch fixes this bug as well. Finally, Pedro pointed out that a previous version implemented sign extension incorrectly. This version introduces a new gdb_sign_extend function for this. A couple of notes on this function: * It has the gdb_ prefix to avoid clashes with various libraries that felt free to avoid proper namespacing. There is a "sign_extend" function in a Tile GX header, in an SOM-related BFD header (and in sh64-tdep.c and as a macro in arm-wince-tdep.c, but those are ours...) * I looked at all the sign extensions in gdb and didn't see ones that I felt comfortable converting to use this function; in large part because I don't have a good way to test the conversion. Built and regtested on x86-64 Fedora 18. New test cases included; this required a minor addition to the DWARF assembler. Note that the DWARF CU made by implptrpiece.exp uses a funny pointer size in order to show the sign-extension bug on all platforms. * dwarf2loc.c (read_pieced_value): Truncate this_size_bits after taking bits_to_skip into account. Sign extend byte_offset. * utils.h (gdb_sign_extend): Declare. * utils.c (gdb_sign_extend): New function. * gdb.dwarf2/implptrpiece.exp: New file. * gdb.dwarf2/implptrconst.exp (d): New variable. Print d. * lib/dwarf2.exp (Dwarf::_location): Handle DW_OP_piece.
2013-06-18 18:11:19 +00:00
/* This is an offset requested by GDB, such as value subscripts.
However, due to how synthetic pointers are implemented, this is
always presented to us as a pointer type. This means we have to
2014-12-28 08:12:53 +00:00
sign-extend it manually as appropriate. Use raw
extract_signed_integer directly rather than value_as_address and
sign extend afterwards on architectures that would need it
(mostly everywhere except MIPS, which has signed addresses) as
the later would go through gdbarch_pointer_to_address and thus
return a CORE_ADDR with high bits set on architectures that
encode address spaces and other things in CORE_ADDR. */
byte_order = gdbarch_byte_order (get_frame_arch (frame));
byte_offset = extract_signed_integer (value_contents (value),
TYPE_LENGTH (type), byte_order);
Fix PR symtab/15391 PR symtab/15391 is a failure with the DW_OP_GNU_implicit_pointer feature. I tracked it down to a logic error in read_pieced_value. The code truncates this_size_bits according to the type size and offset too early -- it should do it after taking bits_to_skip into account. This patch fixes the bug. While testing this, I also tripped across a latent bug because indirect_pieced_value does not sign-extend where needed. This patch fixes this bug as well. Finally, Pedro pointed out that a previous version implemented sign extension incorrectly. This version introduces a new gdb_sign_extend function for this. A couple of notes on this function: * It has the gdb_ prefix to avoid clashes with various libraries that felt free to avoid proper namespacing. There is a "sign_extend" function in a Tile GX header, in an SOM-related BFD header (and in sh64-tdep.c and as a macro in arm-wince-tdep.c, but those are ours...) * I looked at all the sign extensions in gdb and didn't see ones that I felt comfortable converting to use this function; in large part because I don't have a good way to test the conversion. Built and regtested on x86-64 Fedora 18. New test cases included; this required a minor addition to the DWARF assembler. Note that the DWARF CU made by implptrpiece.exp uses a funny pointer size in order to show the sign-extension bug on all platforms. * dwarf2loc.c (read_pieced_value): Truncate this_size_bits after taking bits_to_skip into account. Sign extend byte_offset. * utils.h (gdb_sign_extend): Declare. * utils.c (gdb_sign_extend): New function. * gdb.dwarf2/implptrpiece.exp: New file. * gdb.dwarf2/implptrconst.exp (d): New variable. Print d. * lib/dwarf2.exp (Dwarf::_location): Handle DW_OP_piece.
2013-06-18 18:11:19 +00:00
byte_offset += piece->v.ptr.offset;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
gdb_assert (piece);
baton
= dwarf2_fetch_die_loc_sect_off (piece->v.ptr.die, c->per_cu,
get_frame_address_in_block_wrapper,
frame);
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
if (baton.data != NULL)
return dwarf2_evaluate_loc_desc_full (TYPE_TARGET_TYPE (type), frame,
baton.data, baton.size, baton.per_cu,
Fix PR symtab/15391 PR symtab/15391 is a failure with the DW_OP_GNU_implicit_pointer feature. I tracked it down to a logic error in read_pieced_value. The code truncates this_size_bits according to the type size and offset too early -- it should do it after taking bits_to_skip into account. This patch fixes the bug. While testing this, I also tripped across a latent bug because indirect_pieced_value does not sign-extend where needed. This patch fixes this bug as well. Finally, Pedro pointed out that a previous version implemented sign extension incorrectly. This version introduces a new gdb_sign_extend function for this. A couple of notes on this function: * It has the gdb_ prefix to avoid clashes with various libraries that felt free to avoid proper namespacing. There is a "sign_extend" function in a Tile GX header, in an SOM-related BFD header (and in sh64-tdep.c and as a macro in arm-wince-tdep.c, but those are ours...) * I looked at all the sign extensions in gdb and didn't see ones that I felt comfortable converting to use this function; in large part because I don't have a good way to test the conversion. Built and regtested on x86-64 Fedora 18. New test cases included; this required a minor addition to the DWARF assembler. Note that the DWARF CU made by implptrpiece.exp uses a funny pointer size in order to show the sign-extension bug on all platforms. * dwarf2loc.c (read_pieced_value): Truncate this_size_bits after taking bits_to_skip into account. Sign extend byte_offset. * utils.h (gdb_sign_extend): Declare. * utils.c (gdb_sign_extend): New function. * gdb.dwarf2/implptrpiece.exp: New file. * gdb.dwarf2/implptrconst.exp (d): New variable. Print d. * lib/dwarf2.exp (Dwarf::_location): Handle DW_OP_piece.
2013-06-18 18:11:19 +00:00
byte_offset);
{
struct obstack temp_obstack;
struct cleanup *cleanup;
const gdb_byte *bytes;
LONGEST len;
struct value *result;
obstack_init (&temp_obstack);
cleanup = make_cleanup_obstack_free (&temp_obstack);
bytes = dwarf2_fetch_constant_bytes (piece->v.ptr.die, c->per_cu,
&temp_obstack, &len);
if (bytes == NULL)
result = allocate_optimized_out_value (TYPE_TARGET_TYPE (type));
else
{
if (byte_offset < 0
|| byte_offset + TYPE_LENGTH (TYPE_TARGET_TYPE (type)) > len)
invalid_synthetic_pointer ();
bytes += byte_offset;
result = value_from_contents (TYPE_TARGET_TYPE (type), bytes);
}
do_cleanups (cleanup);
return result;
}
gdb PR gdb/9977, PR exp/11636: * value.h (value_offset): Update. (struct lval_funcs) <check_validity>: New field. <copy_closure>: Make argument const. (value_computed_closure): Update. (value_contents_for_printing): Declare. (value_bits_valid): Likewise. (val_print): Likewise. (set_value_component_location): Update. (value_entirely_optimized_out): Declare. * value.c (value_offset): Argument now const. (require_not_optimized_out): New function. (value_contents_for_printing): New function. (value_contents_all): Call require_not_optimized_out. (value_contents): Likewise. (value_bits_valid): New function. (value_computed_closure): Argument now const. (set_value_component_location): Make 'whole' argument const. (value_entirely_optimized_out): New function. (value_bitsize): Argument now 'const'. (value_bitpos): Likewise. (value_type): Likewise. * valprint.h (val_print_array_elements): Update. * valprint.c (val_print): Add 'val' argument. Use valprint_check_validity. (valprint_check_validity): New function. (value_check_printable): Use value_entirely_optimized_out. (common_val_print): Update. (value_print): Likewise. (val_print_array_elements): Add 'val' argument. * valops.c (value_fetch_lazy): Use value_contents_for_printing, value_bits_valid. Reinit frame cache for lval_computed. * sh64-tdep.c (sh64_do_register): Update. * scm-valprint.c (scm_val_print): Add 'val' argument. * scm-lang.h (scm_val_print): Update. * python/python.h (apply_val_pretty_printer): Update. * python/py-prettyprint.c (apply_val_pretty_printer): Add 'val' argument. Call set_value_component_location. * printcmd.c (print_scalar_formatted): Update. * p-valprint.c (pascal_val_print): Add 'val' argument. (pascal_object_print_value_fields): Likewise. (pascal_object_print_value): Likewise. (pascal_object_print_static_field): Update. * p-lang.h (pascal_val_print): Update. (pascal_object_print_value_fields): Update. * mt-tdep.c (mt_registers_info): Update. * mi/mi-main.c (get_register): Update. (mi_cmd_data_evaluate_expression): Use common_val_print. * m2-valprint.c (m2_print_array_contents): Add 'val' argument. (m2_print_unbounded_array): Likewise. (m2_val_print): Likewise. * m2-lang.h (m2_val_print): Update. * language.h (struct language_defn) <la_val_print>: Add 'val' argument. (LA_VAL_PRINT): Likewise. * language.c (unk_lang_val_print): Add 'val' argument. * jv-valprint.c (java_print_value_fields): Add 'val' argument. (java_val_print): Likewise. * jv-lang.h (java_val_print): Add 'val' argument. * infcmd.c (default_print_registers_info): Update. * f-valprint.c (f77_print_array_1): Add 'val' argument. (f77_print_array): Likewise. (f_val_print): Likewise. * f-lang.h (f_val_print): Add 'val' argument. * dwarf2loc.c (read_pieced_value): Use value_bitsize and value_bitpos. <DWARF_VALUE_OPTIMIZED_OUT>: Don't print warning. Call set_value_optimized_out. (write_pieced_value): Use value_bitsize and value_bitpos. <default>: Don't exit loop. (check_pieced_value_validity): New function. (pieced_value_funcs): Reference check_pieced_value_validity, check_pieced_value_invalid. (copy_pieced_value_closure): Update. (check_pieced_value_bits): New function. (check_pieced_value_invalid): New function. * d-valprint.c (dynamic_array_type): Add 'val' argument. (d_val_print): Likewise. * d-lang.h (d_val_print): Update. * cp-valprint.c (cp_print_value_fields): Add 'val' argument. (cp_print_value_fields_rtti): Likewise. (cp_print_value): Likewise. (cp_print_static_field): Update. * c-valprint.c (c_val_print): Add 'val' argument. (c_value_print): Update. * c-lang.h (c_val_print): Update. (cp_print_value_fields): Likewise. (cp_print_value_fields_rtti): Likewise. * ada-valprint.c (struct ada_val_print_args): Remove. (val_print_packed_array_elements): Add 'val' argument. (ada_val_print): Likewise. Rewrite. (ada_val_print_stub): Remove. (ada_val_print_array): Add 'val' argument. (ada_val_print_1): Likewise. (print_variant_part): Likewise. (ada_value_print): Update. (print_record): Add 'val' argument. (print_field_values): Likewise. * ada-lang.h (ada_val_print): Update. gdb/testsuite PR gdb/9977, PR exp/11636:: * gdb.dwarf2/pieces.exp (pieces_test_f3): Remove kfail. (pieces_test_f6): Update expected output.
2010-06-11 15:36:10 +00:00
}
static void *
gdb PR gdb/9977, PR exp/11636: * value.h (value_offset): Update. (struct lval_funcs) <check_validity>: New field. <copy_closure>: Make argument const. (value_computed_closure): Update. (value_contents_for_printing): Declare. (value_bits_valid): Likewise. (val_print): Likewise. (set_value_component_location): Update. (value_entirely_optimized_out): Declare. * value.c (value_offset): Argument now const. (require_not_optimized_out): New function. (value_contents_for_printing): New function. (value_contents_all): Call require_not_optimized_out. (value_contents): Likewise. (value_bits_valid): New function. (value_computed_closure): Argument now const. (set_value_component_location): Make 'whole' argument const. (value_entirely_optimized_out): New function. (value_bitsize): Argument now 'const'. (value_bitpos): Likewise. (value_type): Likewise. * valprint.h (val_print_array_elements): Update. * valprint.c (val_print): Add 'val' argument. Use valprint_check_validity. (valprint_check_validity): New function. (value_check_printable): Use value_entirely_optimized_out. (common_val_print): Update. (value_print): Likewise. (val_print_array_elements): Add 'val' argument. * valops.c (value_fetch_lazy): Use value_contents_for_printing, value_bits_valid. Reinit frame cache for lval_computed. * sh64-tdep.c (sh64_do_register): Update. * scm-valprint.c (scm_val_print): Add 'val' argument. * scm-lang.h (scm_val_print): Update. * python/python.h (apply_val_pretty_printer): Update. * python/py-prettyprint.c (apply_val_pretty_printer): Add 'val' argument. Call set_value_component_location. * printcmd.c (print_scalar_formatted): Update. * p-valprint.c (pascal_val_print): Add 'val' argument. (pascal_object_print_value_fields): Likewise. (pascal_object_print_value): Likewise. (pascal_object_print_static_field): Update. * p-lang.h (pascal_val_print): Update. (pascal_object_print_value_fields): Update. * mt-tdep.c (mt_registers_info): Update. * mi/mi-main.c (get_register): Update. (mi_cmd_data_evaluate_expression): Use common_val_print. * m2-valprint.c (m2_print_array_contents): Add 'val' argument. (m2_print_unbounded_array): Likewise. (m2_val_print): Likewise. * m2-lang.h (m2_val_print): Update. * language.h (struct language_defn) <la_val_print>: Add 'val' argument. (LA_VAL_PRINT): Likewise. * language.c (unk_lang_val_print): Add 'val' argument. * jv-valprint.c (java_print_value_fields): Add 'val' argument. (java_val_print): Likewise. * jv-lang.h (java_val_print): Add 'val' argument. * infcmd.c (default_print_registers_info): Update. * f-valprint.c (f77_print_array_1): Add 'val' argument. (f77_print_array): Likewise. (f_val_print): Likewise. * f-lang.h (f_val_print): Add 'val' argument. * dwarf2loc.c (read_pieced_value): Use value_bitsize and value_bitpos. <DWARF_VALUE_OPTIMIZED_OUT>: Don't print warning. Call set_value_optimized_out. (write_pieced_value): Use value_bitsize and value_bitpos. <default>: Don't exit loop. (check_pieced_value_validity): New function. (pieced_value_funcs): Reference check_pieced_value_validity, check_pieced_value_invalid. (copy_pieced_value_closure): Update. (check_pieced_value_bits): New function. (check_pieced_value_invalid): New function. * d-valprint.c (dynamic_array_type): Add 'val' argument. (d_val_print): Likewise. * d-lang.h (d_val_print): Update. * cp-valprint.c (cp_print_value_fields): Add 'val' argument. (cp_print_value_fields_rtti): Likewise. (cp_print_value): Likewise. (cp_print_static_field): Update. * c-valprint.c (c_val_print): Add 'val' argument. (c_value_print): Update. * c-lang.h (c_val_print): Update. (cp_print_value_fields): Likewise. (cp_print_value_fields_rtti): Likewise. * ada-valprint.c (struct ada_val_print_args): Remove. (val_print_packed_array_elements): Add 'val' argument. (ada_val_print): Likewise. Rewrite. (ada_val_print_stub): Remove. (ada_val_print_array): Add 'val' argument. (ada_val_print_1): Likewise. (print_variant_part): Likewise. (ada_value_print): Update. (print_record): Add 'val' argument. (print_field_values): Likewise. * ada-lang.h (ada_val_print): Update. gdb/testsuite PR gdb/9977, PR exp/11636:: * gdb.dwarf2/pieces.exp (pieces_test_f3): Remove kfail. (pieces_test_f6): Update expected output.
2010-06-11 15:36:10 +00:00
copy_pieced_value_closure (const struct value *v)
{
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 22:22:53 +00:00
struct piece_closure *c
= (struct piece_closure *) value_computed_closure (v);
++c->refc;
return c;
}
static void
free_pieced_value_closure (struct value *v)
{
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 22:22:53 +00:00
struct piece_closure *c
= (struct piece_closure *) value_computed_closure (v);
--c->refc;
if (c->refc == 0)
{
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
int i;
for (i = 0; i < c->n_pieces; ++i)
if (c->pieces[i].location == DWARF_VALUE_STACK)
value_free (c->pieces[i].v.value);
xfree (c->pieces);
xfree (c);
}
}
/* Functions for accessing a variable described by DW_OP_piece. */
static const struct lval_funcs pieced_value_funcs = {
read_pieced_value,
write_pieced_value,
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
indirect_pieced_value,
gdb/ Display @entry parameter values even for references. * ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise. * dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the existing push_dwarf_reg_entry_value call. Add new detection calling dwarf_block_to_dwarf_reg_deref. Update the error message. (ctx_no_push_dwarf_reg_entry_value): New parameter deref_size. * dwarf2expr.h (struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new parameter deref_size, describe it in the comment. (ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size. (dwarf_block_to_dwarf_reg_deref): New declaration. * dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter deref_size, describe it in the function comment. New variables data_src and size, fetch the alternative block accoring to DEREF_SIZE. (dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size, describe it in the function comment. Fetch the alternative block accoring to DEREF_SIZE. (entry_data_value_coerce_ref, entry_data_value_copy_closure) (entry_data_value_free_closure, entry_data_value_funcs): New. (value_of_dwarf_reg_entry): New variables checked_type, target_type, outer_val, target_val, val and addr. Try to fetch and create also referenced value content. (pieced_value_funcs): NULL value for coerce_ref. (needs_dwarf_reg_entry_value): Add new parameter deref_size. * f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also coerce_ref_if_computed. * opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref. * p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise. * stack.c (read_frame_arg): Compare also dereferenced values. * value.c (value_computed_funcs): Make the parameter v const, use value_lval_const for it. (value_lval_const, coerce_ref_if_computed): New function. (coerce_ref): New variable retval. Call also coerce_ref_if_computed. * value.h (struct lval_funcs): New field coerce_ref. (value_computed_funcs): Make the parameter v const. (value_lval_const, coerce_ref_if_computed): New declarations. gdb/testsuite/ Display @entry parameter values even for references. * gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New functions. (main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call reference and datap_input. * gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New breakpoints. (continue to breakpoint: entry_reference: reference) (entry_reference: bt at entry) (continue to breakpoint: entry_reference: breakhere_reference) (entry_reference: bt, entry_reference: ptype regparam) (entry_reference: p regparam, entry_reference: ptype regparam@entry) (entry_reference: p regparam@entry, entry_reference: p &regparam@entry) (entry_reference: p regcopy, entry_reference: p nodataparam) (entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
NULL, /* coerce_ref */
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
check_pieced_synthetic_pointer,
copy_pieced_value_closure,
free_pieced_value_closure
};
/* Virtual method table for dwarf2_evaluate_loc_desc_full below. */
static const struct dwarf_expr_context_funcs dwarf_expr_ctx_funcs =
{
dwarf_expr_read_addr_from_reg,
Fix DW_OP_GNU_regval_type with FP registers Consider the following code, compiled at -O2 on ppc-linux: procedure Increment (Val : in out Float; Msg : String); The implementation does not really matter in this case). In our example, this function is being called from a function with Param_1 set to 99.0. Trying to break inside that function, and running until reaching that breakpoint yields: (gdb) b increment Breakpoint 1 at 0x100014b4: file callee.adb, line 6. (gdb) run Starting program: /[...]/foo Breakpoint 1, callee.increment (val=99.0, val@entry=0.0, msg=...) at callee.adb:6 6 if Val > 200.0 then The @entry value for parameter "val" is incorrect, it should be 99.0. The associated call-site parameter DIE looks like this: .uleb128 0xc # (DIE (0x115) DW_TAG_GNU_call_site_parameter) .byte 0x2 # DW_AT_location .byte 0x90 # DW_OP_regx .uleb128 0x21 .byte 0x3 # DW_AT_GNU_call_site_value .byte 0xf5 # DW_OP_GNU_regval_type .uleb128 0x3f .uleb128 0x25 The DW_AT_GNU_call_site_value uses a DW_OP_GNU_regval_type operation, referencing register 0x3f=63, which is $f31, an 8-byte floating register. In that register, the value is stored using the usual 8-byte float format: (gdb) info float f31 99.0 (raw 0x4058c00000000000) The current code evaluating DW_OP_GNU_regval_type operations currently is (dwarf2expr.c:execute_stack_op): result = (ctx->funcs->read_reg) (ctx->baton, reg); result_val = value_from_ulongest (address_type, result); result_val = value_from_contents (type, value_contents_all (result_val)); What the ctx->funcs->read_reg function does is read the contents of the register as if it contained an address. The rest of the code continues that assumption, thinking it's OK to then use that to create an address/ulongest struct value, which we then re-type to the type specified by DW_OP_GNU_regval_type. We're getting 0.0 above because the read_reg implementations end up treating the contents of the FP register as an integral, reading only 4 out of the 8 bytes. Being a big-endian target, we read the high-order ones, which gives us zero. This patch fixes the problem by introducing a new callback to read the contents of a register as a given type, and then adjust the handling of DW_OP_GNU_regval_type to use that new callback. gdb/ChangeLog: * dwarf2expr.h (struct dwarf_expr_context_funcs) <read_reg>: Extend the documentation a bit. <get_reg_value>: New field. * dwarf2loc.c (dwarf_expr_get_reg_value) (needs_frame_get_reg_value): New functions. (dwarf_expr_ctx_funcs, needs_frame_ctx_funcs): Add "get_reg_value" callback. * dwarf2-frame.c (get_reg_value): New function. (dwarf2_frame_ctx_funcs): Add "get_reg_value" callback. * dwarf2expr.c (execute_stack_op) <DW_OP_GNU_regval_type>: Use new callback to compute result_val. gdb/testsuite/ChangeLog: * gdb.ada/O2_float_param: New testcase.
2013-10-31 05:36:21 +00:00
dwarf_expr_get_reg_value,
dwarf_expr_read_mem,
dwarf_expr_frame_base,
dwarf_expr_frame_cfa,
dwarf_expr_frame_pc,
dwarf_expr_tls_address,
dwarf_expr_dwarf_call,
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
dwarf_expr_get_base_type,
Initial support for Fission. http://gcc.gnu.org/wiki/DebugFission * symfile.c (default_symfile_relocate): Use sectp->owner instead of objfile->obfd. * symfile.h (dwarf2_debug_sections): New member addr. * dwarf2expr.c (execute_stack_op): New case DW_OP_GNU_addr_index. (ctx_no_get_addr_index): New function. * dwarf2expr.h (dwarf_expr_context_funcs): New member get_addr_index. (ctx_no_get_addr_index): Declare. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Update. * dwarf2loc.c (dwarf_expr_get_addr_index): New function. (dwarf_expr_ctx_funcs): Update. (needs_get_addr_index): New function. (needs_frame_ctx_funcs): Update. * dwarf2loc.h (dwarf2_read_addr_index): Declare. * dwarf2read.c: #include "gdbcore.h". (dwarf2_per_objfile): New members addr, dwo_files. (dwarf2_elf_names): Add entry for addr. (struct dwo_section_names): New type. (dwo_section_names): New static global. (dwarf2_cu): New members dwo_unit, addr_base, have_addr_base. (dwarf2_per_cu_data): New member is_debug_types, all boolean uses of old debug_types_section member updated to use this. Rename member debug_types_section to info_or_types_section, all uses updated. (signatured_type): Rename member type_offset to type_offset_in_tu, all uses updated. New member type_offset_in_section. (struct dwo_sections): New type. (struct dwo_unit): New type. (struct dwo_file): New type. (die_reader_specs): New member dwo_file. (dwarf2_locate_sections): Watch for .debug_addr. (zlib_decompress_section): Use sectp->owner instead of objfile->obfd. (dwarf2_read_section): Get bfd of section from bfd's asection, instead of objfile. (create_cus_from_index): Initialize the_cu->info_or_types_section. (create_signatured_type_table_from_index): Initialize sig_type->info_or_types_section. (dw2_get_file_names): Statement lists for type units with DWO files live in the DWO file. (create_debug_types_hash_table): New function. (create_all_type_units): Rewrite. (init_cu_die_reader): New arg dwo_file, all callers updated. (init_and_read_dies_worker): Get section from this_cu->info_or_types_section. Set sig_type->type_offset_in_section. Watch for DW_AT_GNU_dwo_name and if present lookup the file and continue reading the CU/TU from there. (init_cutu_and_read_dies_no_follow): New arg dwo_file, all callers updated. Get section from this_cu->info_or_types_section. (create_all_comp_units): Initialize this_cu->info_or_types_section. (skip_one_die): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (hash_dwo_file, eq_dwo_file): New functions. (allocate_dwo_file_hash_table): New function. (hash_dwo_unit, eq_dwo_unit): New functions. (allocate_dwo_unit_table): New function. (dwarf2_locate_dwo_sections): New function. (struct create_dwo_info_table_data): New type. (create_debug_info_hash_table_reader): New function. (create_debug_info_hash_table): New function. (try_open_dwo_file, open_dwo_file, init_dwo_file): New function. (lookup_dwo_file): New function. (lookup_dwo_comp_unit, lookup_dwo_type_unit): New functions. (free_dwo_file, free_dwo_file_cleanup): New functions. (free_dwo_file_from_slot, free_dwo_files): New functions. (dwarf2_get_pc_bounds): Handle DW_FORM_GNU_addr_index. (dwarf2_record_block_ranges): Ditto. (read_partial_die): Ditto. (process_enumeration_scope): Update to use type_offset_in_section. (read_full_die_1): New function. (read_full_die): Rewrite. (read_attribute_value): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (read_addr_index_1, read_addr_index): New functions. (read_addr_index_from_leb128): New function. (struct dwarf2_read_addr_index_data): New type. (dwarf2_read_addr_index_reader): New function. (dwarf2_read_addr_index): New function. (read_str_index): New function. (leb128_size): New function. (dwarf_decode_line_header): Delete arg abfd, all callers updated. If processing a type unit from a DWO file, get the line section from the DWO file. (var_decode_location): Watch for DW_OP_GNU_addr_index. (dwarf2_const_value_attr): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (lookup_die_type): Check whether section offset of type's die is known before looking it up. Remove assert. Condition can legimately happen for inter-cu type references. (dwarf_attr_name): Handle Fission attributes. (dwarf_form_name): Handle Fission forms. (dump_die_shallow): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (follow_die_sig): Update to use type_offset_in_section. (decode_locdesc): New case DW_OP_GNU_addr_index. (skip_form_bytes): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (cu_debug_loc_section): New function. (fill_in_loclist_baton, dwarf2_symbol_mark_computed): Call it. (dwarf2_per_objfile_free): Unmap .debug_addr section. Free DWO files if present. * xcoffread.c (dwarf2_xcoff_names): Add .debug_addr. testsuite/ * gdb.dwarf2/dw2-intercu.S (.Ltype_int2_in_cu2): Renamed from .Ltype_int_in_cu2. Use name "int2" instead of "int". All uses updated. * gdb.dwarf2/dw2-intercu.exp: Add "ptype int2" ahead of "ptype func_cu1" to expand cu2 before cu1.
2012-04-28 23:22:14 +00:00
dwarf_expr_push_dwarf_reg_entry_value,
dwarf_expr_get_addr_index,
dwarf_expr_get_obj_addr
};
/* Evaluate a location description, starting at DATA and with length
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
SIZE, to find the current location of variable of TYPE in the
context of FRAME. BYTE_OFFSET is applied after the contents are
computed. */
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
static struct value *
dwarf2_evaluate_loc_desc_full (struct type *type, struct frame_info *frame,
const gdb_byte *data, size_t size,
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
struct dwarf2_per_cu_data *per_cu,
LONGEST byte_offset)
{
struct value *retval;
struct dwarf_expr_baton baton;
struct dwarf_expr_context *ctx;
struct cleanup *old_chain, *value_chain;
struct objfile *objfile = dwarf2_per_cu_objfile (per_cu);
volatile struct gdb_exception ex;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
if (byte_offset < 0)
invalid_synthetic_pointer ();
if (size == 0)
return allocate_optimized_out_value (type);
baton.frame = frame;
baton.per_cu = per_cu;
baton.obj_address = 0;
ctx = new_dwarf_expr_context ();
old_chain = make_cleanup_free_dwarf_expr_context (ctx);
value_chain = make_cleanup_value_free_to_mark (value_mark ());
ctx->gdbarch = get_objfile_arch (objfile);
2008-03-18 Ulrich Weigand <uweigand@de.ibm.com> Jim Blandy <jimb@codesourcery.com> Daniel Jacobowitz <drow@false.org> * dwarf2expr.h (struct dwarf_expr_context): Add ADDR_SIZE member. (dwarf2_read_address): Update prototype. * dwarf2expr.c (unsigned_address_type): Add ADDR_SIZE parameter. (signed_address_type): Likewise. (dwarf2_read_address): Replace BYTES_READ parameter with ADDR_SIZE. (execute_stack_op): Update calls to unsigned_address_type, signed_address_type and dwarf2_read_address. Fix implementation of DW_OP_deref_size. * dwarf2loc.h (dwarf2_per_cu_objfile): Add prototype. (dwarf2_per_cu_addr_size): Likewise. (struct dwarf2_locexpr_baton): Replace OBJFILE with PER_CU. (struct dwarf2_loclist_baton): Likewise. * dwarf2loc.c (find_location_expression): Update calls to dwarf2_read_address. Use dwarf2_per_cu_objfile and dwarf2_per_cu_addr_size to retrieve PER_CU parameters. (locexpr_describe_location): Likewise. (dwarf2_evaluate_loc_desc): Replace OBJFILE with PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (dwarf2_loc_desc_needs_frame): Add PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (locexpr_read_variable): Update dwarf2_evaluate_loc_desc call. (loclist_read_variable): Likewise. (locexpr_read_needs_frame): Update dwarf2_loc_desc_needs_frame call. * dwarf2read.c (dwarf2_symbol_mark_computed): Set baton->per_cu instead of baton->objfile. (dwarf2_per_cu_obfile): New function. (dwarf2_per_cu_addr_size): Likewise. * dwarf2-frame.c (struct comp_unit): Move higher. (struct dwarf2_cie): Add UNIT and ADDR_SIZE members. (execute_stack_op): Add ADDR_SIZE parameter; set ctx->addr_size. (execute_cfa_program): Add FDE parameter. Replace EH_FRAME_P parameter by using fde->eh_frame_p. Use read_encoded_value to implement DW_CFA_set_loc. (struct dwarf2_frame_cache): Add ADDR_SIZE member. (dwarf2_frame_cache): Set cache->addr_size. Update calls to execute_stack_op and execute_cfa_program. (dwarf2_frame_prev_register): Update calls to execute_stack_op. (size_of_encoded_value): Remove. (read_encoded_value): Add PTR_LEN and FUNC_BASE parameters. Remove call to size_of_encoded_value. Implement DW_EH_PE_funcrel. (add_cie): Set cie->unit backlink. (decode_frame_entry_1): Set cie->addr_size. Update calls to read_encoded_value. (dwarf2_build_frame_info): Allocate UNIT on objfile obstack.
2008-03-18 19:40:47 +00:00
ctx->addr_size = dwarf2_per_cu_addr_size (per_cu);
ctx->ref_addr_size = dwarf2_per_cu_ref_addr_size (per_cu);
ctx->offset = dwarf2_per_cu_text_offset (per_cu);
ctx->baton = &baton;
ctx->funcs = &dwarf_expr_ctx_funcs;
TRY_CATCH (ex, RETURN_MASK_ERROR)
{
dwarf_expr_eval (ctx, data, size);
}
if (ex.reason < 0)
{
if (ex.error == NOT_AVAILABLE_ERROR)
{
do_cleanups (old_chain);
retval = allocate_value (type);
mark_value_bytes_unavailable (retval, 0, TYPE_LENGTH (type));
return retval;
}
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
else if (ex.error == NO_ENTRY_VALUE_ERROR)
{
if (entry_values_debug)
exception_print (gdb_stdout, ex);
do_cleanups (old_chain);
return allocate_optimized_out_value (type);
}
else
throw_exception (ex);
}
if (ctx->num_pieces > 0)
{
struct piece_closure *c;
struct frame_id frame_id = get_frame_id (frame);
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
ULONGEST bit_size = 0;
int i;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
for (i = 0; i < ctx->num_pieces; ++i)
bit_size += ctx->pieces[i].size;
if (8 * (byte_offset + TYPE_LENGTH (type)) > bit_size)
invalid_synthetic_pointer ();
c = allocate_piece_closure (per_cu, ctx->num_pieces, ctx->pieces,
ctx->addr_size);
/* We must clean up the value chain after creating the piece
closure but before allocating the result. */
do_cleanups (value_chain);
retval = allocate_computed_value (type, &pieced_value_funcs, c);
VALUE_FRAME_ID (retval) = frame_id;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
set_value_offset (retval, byte_offset);
}
else
{
switch (ctx->location)
{
case DWARF_VALUE_REGISTER:
{
struct gdbarch *arch = get_frame_arch (frame);
int dwarf_regnum
= longest_to_int (value_as_long (dwarf_expr_fetch (ctx, 0)));
int gdb_regnum = gdbarch_dwarf2_reg_to_regnum (arch, dwarf_regnum);
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
if (byte_offset != 0)
error (_("cannot use offset on synthetic pointer to register"));
do_cleanups (value_chain);
Print registers not saved in the frame as "<not saved>" instead of "<optimized out>". Currently, in some scenarios, GDB prints <optimized out> when printing outer frame registers. An <optimized out> register is a confusing concept. What this really means is that the register is call-clobbered, or IOW, not saved by the callee. This patch makes GDB say that instead. Before patch: (gdb) p/x $rax $1 = <optimized out> (gdb) info registers rax rax <optimized out> After patch: (gdb) p/x $rax $1 = <not saved> (gdb) info registers rax rax <not saved> However, if for some reason the debug info describes a variable as being in such a register (**), we still want to print <optimized out> when printing the variable. IOW, <not saved> is reserved for inspecting registers at the machine level. The patch uses lval_register+optimized_out to encode the not saved registers, and makes it so that optimized out variables always end up in !lval_register values. ** See <https://sourceware.org/ml/gdb-patches/2012-08/msg00787.html>. Current/recent enough GCC doesn't mark variables/arguments as being in call-clobbered registers in the ranges corresponding to function calls, while older GCCs did. Newer GCCs will just not say where the variable is, so GDB will end up realizing the variable is optimized out. frame_unwind_got_optimized creates not_lval optimized out registers, so by default, in most cases, we'll see <optimized out>. value_of_register is the function eval.c uses for evaluating OP_REGISTER (again, $pc, etc.), and related bits. It isn't used for anything else. This function makes sure to return lval_register values. The patch makes "info registers" and the MI equivalent use it too. I think it just makes a lot of sense, as this makes it so that when printing machine registers ($pc, etc.), we go through a central function. We're likely to need a different encoding at some point, if/when we support partially saved registers. Even then, I think value_of_register will still be the spot to tag the intention to print machine register values differently. value_from_register however may also return optimized out lval_register values, so at a couple places where we're computing a variable's location from a dwarf expression, we convert the resulting value away from lval_register to a regular optimized out value. Tested on x86_64 Fedora 17 gdb/ 2013-10-02 Pedro Alves <palves@redhat.com> * cp-valprint.c (cp_print_value_fields): Adjust calls to val_print_optimized_out. * jv-valprint.c (java_print_value_fields): Likewise. * p-valprint.c (pascal_object_print_value_fields): Likewise. * dwarf2loc.c (dwarf2_evaluate_loc_desc_full) <DWARF_VALUE_REGISTER>: If the register was not saved, return a new optimized out value. * findvar.c (address_from_register): Likewise. * frame.c (put_frame_register): Tweak error string to say the register was not saved, rather than optimized out. * infcmd.c (default_print_one_register_info): Adjust call to val_print_optimized_out. Use value_of_register instead of get_frame_register_value. * mi/mi-main.c (output_register): Use value_of_register instead of get_frame_register_value. * valprint.c (valprint_check_validity): Likewise. (val_print_optimized_out): New value parameter. If the value is lval_register, print <not saved> instead. (value_check_printable, val_print_scalar_formatted): Adjust calls to val_print_optimized_out. * valprint.h (val_print_optimized_out): New value parameter. * value.c (struct value) <optimized_out>: Extend comment. (error_value_optimized_out): New function. (require_not_optimized_out): Use it. Use a different string for lval_register values. * value.h (error_value_optimized_out): New declaration. * NEWS: Mention <not saved>. gdb/testsuite/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.dwarf2/dw2-reg-undefined.exp <pattern_rax_rbx_rcx_print, pattern_rax_rbx_rcx_info>: Set to "<not saved>". * gdb.mi/mi-reg-undefined.exp (opt_out_pattern): Delete. (not_saved_pattern): New. Replace use of the former with the latter. gdb/doc/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.texinfo (Registers): Expand description of saved registers in frames. Explain <not saved>.
2013-10-02 16:15:46 +00:00
if (gdb_regnum == -1)
error (_("Unable to access DWARF register number %d"),
dwarf_regnum);
Print registers not saved in the frame as "<not saved>" instead of "<optimized out>". Currently, in some scenarios, GDB prints <optimized out> when printing outer frame registers. An <optimized out> register is a confusing concept. What this really means is that the register is call-clobbered, or IOW, not saved by the callee. This patch makes GDB say that instead. Before patch: (gdb) p/x $rax $1 = <optimized out> (gdb) info registers rax rax <optimized out> After patch: (gdb) p/x $rax $1 = <not saved> (gdb) info registers rax rax <not saved> However, if for some reason the debug info describes a variable as being in such a register (**), we still want to print <optimized out> when printing the variable. IOW, <not saved> is reserved for inspecting registers at the machine level. The patch uses lval_register+optimized_out to encode the not saved registers, and makes it so that optimized out variables always end up in !lval_register values. ** See <https://sourceware.org/ml/gdb-patches/2012-08/msg00787.html>. Current/recent enough GCC doesn't mark variables/arguments as being in call-clobbered registers in the ranges corresponding to function calls, while older GCCs did. Newer GCCs will just not say where the variable is, so GDB will end up realizing the variable is optimized out. frame_unwind_got_optimized creates not_lval optimized out registers, so by default, in most cases, we'll see <optimized out>. value_of_register is the function eval.c uses for evaluating OP_REGISTER (again, $pc, etc.), and related bits. It isn't used for anything else. This function makes sure to return lval_register values. The patch makes "info registers" and the MI equivalent use it too. I think it just makes a lot of sense, as this makes it so that when printing machine registers ($pc, etc.), we go through a central function. We're likely to need a different encoding at some point, if/when we support partially saved registers. Even then, I think value_of_register will still be the spot to tag the intention to print machine register values differently. value_from_register however may also return optimized out lval_register values, so at a couple places where we're computing a variable's location from a dwarf expression, we convert the resulting value away from lval_register to a regular optimized out value. Tested on x86_64 Fedora 17 gdb/ 2013-10-02 Pedro Alves <palves@redhat.com> * cp-valprint.c (cp_print_value_fields): Adjust calls to val_print_optimized_out. * jv-valprint.c (java_print_value_fields): Likewise. * p-valprint.c (pascal_object_print_value_fields): Likewise. * dwarf2loc.c (dwarf2_evaluate_loc_desc_full) <DWARF_VALUE_REGISTER>: If the register was not saved, return a new optimized out value. * findvar.c (address_from_register): Likewise. * frame.c (put_frame_register): Tweak error string to say the register was not saved, rather than optimized out. * infcmd.c (default_print_one_register_info): Adjust call to val_print_optimized_out. Use value_of_register instead of get_frame_register_value. * mi/mi-main.c (output_register): Use value_of_register instead of get_frame_register_value. * valprint.c (valprint_check_validity): Likewise. (val_print_optimized_out): New value parameter. If the value is lval_register, print <not saved> instead. (value_check_printable, val_print_scalar_formatted): Adjust calls to val_print_optimized_out. * valprint.h (val_print_optimized_out): New value parameter. * value.c (struct value) <optimized_out>: Extend comment. (error_value_optimized_out): New function. (require_not_optimized_out): Use it. Use a different string for lval_register values. * value.h (error_value_optimized_out): New declaration. * NEWS: Mention <not saved>. gdb/testsuite/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.dwarf2/dw2-reg-undefined.exp <pattern_rax_rbx_rcx_print, pattern_rax_rbx_rcx_info>: Set to "<not saved>". * gdb.mi/mi-reg-undefined.exp (opt_out_pattern): Delete. (not_saved_pattern): New. Replace use of the former with the latter. gdb/doc/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.texinfo (Registers): Expand description of saved registers in frames. Explain <not saved>.
2013-10-02 16:15:46 +00:00
retval = value_from_register (type, gdb_regnum, frame);
if (value_optimized_out (retval))
{
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
struct value *tmp;
Print registers not saved in the frame as "<not saved>" instead of "<optimized out>". Currently, in some scenarios, GDB prints <optimized out> when printing outer frame registers. An <optimized out> register is a confusing concept. What this really means is that the register is call-clobbered, or IOW, not saved by the callee. This patch makes GDB say that instead. Before patch: (gdb) p/x $rax $1 = <optimized out> (gdb) info registers rax rax <optimized out> After patch: (gdb) p/x $rax $1 = <not saved> (gdb) info registers rax rax <not saved> However, if for some reason the debug info describes a variable as being in such a register (**), we still want to print <optimized out> when printing the variable. IOW, <not saved> is reserved for inspecting registers at the machine level. The patch uses lval_register+optimized_out to encode the not saved registers, and makes it so that optimized out variables always end up in !lval_register values. ** See <https://sourceware.org/ml/gdb-patches/2012-08/msg00787.html>. Current/recent enough GCC doesn't mark variables/arguments as being in call-clobbered registers in the ranges corresponding to function calls, while older GCCs did. Newer GCCs will just not say where the variable is, so GDB will end up realizing the variable is optimized out. frame_unwind_got_optimized creates not_lval optimized out registers, so by default, in most cases, we'll see <optimized out>. value_of_register is the function eval.c uses for evaluating OP_REGISTER (again, $pc, etc.), and related bits. It isn't used for anything else. This function makes sure to return lval_register values. The patch makes "info registers" and the MI equivalent use it too. I think it just makes a lot of sense, as this makes it so that when printing machine registers ($pc, etc.), we go through a central function. We're likely to need a different encoding at some point, if/when we support partially saved registers. Even then, I think value_of_register will still be the spot to tag the intention to print machine register values differently. value_from_register however may also return optimized out lval_register values, so at a couple places where we're computing a variable's location from a dwarf expression, we convert the resulting value away from lval_register to a regular optimized out value. Tested on x86_64 Fedora 17 gdb/ 2013-10-02 Pedro Alves <palves@redhat.com> * cp-valprint.c (cp_print_value_fields): Adjust calls to val_print_optimized_out. * jv-valprint.c (java_print_value_fields): Likewise. * p-valprint.c (pascal_object_print_value_fields): Likewise. * dwarf2loc.c (dwarf2_evaluate_loc_desc_full) <DWARF_VALUE_REGISTER>: If the register was not saved, return a new optimized out value. * findvar.c (address_from_register): Likewise. * frame.c (put_frame_register): Tweak error string to say the register was not saved, rather than optimized out. * infcmd.c (default_print_one_register_info): Adjust call to val_print_optimized_out. Use value_of_register instead of get_frame_register_value. * mi/mi-main.c (output_register): Use value_of_register instead of get_frame_register_value. * valprint.c (valprint_check_validity): Likewise. (val_print_optimized_out): New value parameter. If the value is lval_register, print <not saved> instead. (value_check_printable, val_print_scalar_formatted): Adjust calls to val_print_optimized_out. * valprint.h (val_print_optimized_out): New value parameter. * value.c (struct value) <optimized_out>: Extend comment. (error_value_optimized_out): New function. (require_not_optimized_out): Use it. Use a different string for lval_register values. * value.h (error_value_optimized_out): New declaration. * NEWS: Mention <not saved>. gdb/testsuite/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.dwarf2/dw2-reg-undefined.exp <pattern_rax_rbx_rcx_print, pattern_rax_rbx_rcx_info>: Set to "<not saved>". * gdb.mi/mi-reg-undefined.exp (opt_out_pattern): Delete. (not_saved_pattern): New. Replace use of the former with the latter. gdb/doc/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.texinfo (Registers): Expand description of saved registers in frames. Explain <not saved>.
2013-10-02 16:15:46 +00:00
/* This means the register has undefined value / was
not saved. As we're computing the location of some
variable etc. in the program, not a value for
inspecting a register ($pc, $sp, etc.), return a
generic optimized out value instead, so that we show
<optimized out> instead of <not saved>. */
do_cleanups (value_chain);
Handle partially optimized out values similarly to unavailable values This fixes PR symtab/14604, PR symtab/14605, and Jan's test at https://sourceware.org/ml/gdb-patches/2014-07/msg00158.html, in a tree with bddbbed reverted: 2014-07-22 Pedro Alves <palves@redhat.com> * value.c (allocate_optimized_out_value): Don't mark value as non-lazy. The PRs are about variables described by the DWARF as being split over multiple registers using DWARF piece information, but some of those registers being marked as optimised out (not saved) by a later frame. GDB currently incorrectly mishandles these partially-optimized-out values. Even though we can usually tell from the debug info whether a local or global is optimized out, handling the case of a local living in a register that was not saved in a frame requires fetching the variable. GDB also needs to fetch a value to tell whether parts of it are "<unavailable>". Given this, it's not worth it to try to avoid fetching lazy optimized-out values based on debug info alone. So this patch makes GDB track which chunks of a value's contents are optimized out like it tracks <unavailable> contents. That is, it makes value->optimized_out be a bit range vector instead of a boolean, and removes the struct lval_funcs check_validity and check_any_valid hooks. Unlike Andrew's series which this is based on (at https://sourceware.org/ml/gdb-patches/2013-08/msg00300.html, note some pieces have gone in since), this doesn't merge optimized out and unavailable contents validity/availability behind a single interface, nor does it merge the bit range vectors themselves (at least yet). While it may be desirable to have a single entry point that returns existence of contents irrespective of what may make them invalid/unavailable, several places want to treat optimized out / unavailable / etc. differently, so each spot that potentially could use it will need to be careful considered on case-by-case basis, and best done as a separate change. This fixes Jan's test, because value_available_contents_eq wasn't considering optimized out value contents. It does now, and because of that it's been renamed to value_contents_eq. A new intro comment is added to value.h describing "<optimized out>", "<not saved>" and "<unavailable>" values. gdb/ PR symtab/14604 PR symtab/14605 * ada-lang.c (coerce_unspec_val_to_type): Use value_contents_copy_raw. * ada-valprint.c (val_print_packed_array_elements): Adjust. * c-valprint.c (c_val_print): Use value_bits_any_optimized_out. * cp-valprint.c (cp_print_value_fields): Let the common printing code handle optimized out values. (cp_print_value_fields_rtti): Use value_bits_any_optimized_out. * d-valprint.c (dynamic_array_type): Use value_bits_any_optimized_out. * dwarf2loc.c (entry_data_value_funcs): Remove check_validity and check_any_valid fields. (check_pieced_value_bits): Delete and inline ... (check_pieced_synthetic_pointer): ... here. (check_pieced_value_validity): Delete. (check_pieced_value_invalid): Delete. (pieced_value_funcs): Remove check_validity and check_any_valid fields. (read_pieced_value): Use mark_value_bits_optimized_out. (write_pieced_value): Switch to use mark_value_bytes_optimized_out. (dwarf2_evaluate_loc_desc_full): Copy the value contents instead of assuming the whole value is optimized out. * findvar.c (read_frame_register_value): Remove special handling of optimized out registers. (value_from_register): Use mark_value_bytes_optimized_out. * frame-unwind.c (frame_unwind_got_optimized): Use mark_value_bytes_optimized_out. * jv-valprint.c (java_value_print): Adjust. (java_print_value_fields): Let the common printing code handle optimized out values. * mips-tdep.c (mips_print_register): Remove special handling of optimized out registers. * opencl-lang.c (lval_func_check_validity): Delete. (lval_func_check_any_valid): Delete. (opencl_value_funcs): Remove check_validity and check_any_valid fields. * p-valprint.c (pascal_object_print_value_fields): Let the common printing code handle optimized out values. * stack.c (read_frame_arg): Remove special handling of optimized out values. Fetch both VAL and ENTRYVAL before comparing contents. Adjust to value_available_contents_eq rename. * valprint.c (valprint_check_validity) (val_print_scalar_formatted): Use value_bits_any_optimized_out. (val_print_array_elements): Adjust. * value.c (struct value) <optimized_out>: Now a VEC(range_s). (value_bits_any_optimized_out): New function. (value_entirely_covered_by_range_vector): New function, factored out from value_entirely_unavailable. (value_entirely_unavailable): Reimplement. (value_entirely_optimized_out): New function. (insert_into_bit_range_vector): New function, factored out from mark_value_bits_unavailable. (mark_value_bits_unavailable): Reimplement. (struct ranges_and_idx): New struct. (find_first_range_overlap_and_match): New function, factored out from value_available_contents_bits_eq. (value_available_contents_bits_eq): Rename to ... (value_contents_bits_eq): ... this. Check both unavailable contents and optimized out contents. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this. (allocate_value_lazy): Remove reference to the old optimized_out boolean. (allocate_optimized_out_value): Use mark_value_bytes_optimized_out. (require_not_optimized_out): Adjust to check whether the optimized_out vec is empty. (ranges_copy_adjusted): New function, factored out from value_contents_copy_raw. (value_contents_copy_raw): Also copy the optimized out ranges. Assert the destination ranges aren't optimized out. (value_contents_copy): Update comment, remove call to require_not_optimized_out. (value_contents_equal): Adjust to check whether the optimized_out vec is empty. (set_value_optimized_out, value_optimized_out_const): Delete. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New functions. (value_entirely_optimized_out, value_bits_valid): Delete. (value_copy): Take a VEC copy of the 'optimized_out' field. (value_primitive_field): Remove special handling of optimized out. (value_fetch_lazy): Assert that lazy values have no unavailable regions. Use value_bits_any_optimized_out. Remove some special handling for optimized out values. * value.h: Add intro comment about <optimized out> and <unavailable>. (struct lval_funcs): Remove check_validity and check_any_valid fields. (set_value_optimized_out, value_optimized_out_const): Remove. (mark_value_bytes_optimized_out, mark_value_bits_optimized_out): New declarations. (value_bits_any_optimized_out): New declaration. (value_bits_valid): Delete declaration. (value_available_contents_eq): Rename to ... (value_contents_eq): ... this, and extend comments. gdb/testsuite/ PR symtab/14604 PR symtab/14605 * gdb.dwarf2/dw2-op-out-param.exp: Remove kfail branches and use gdb_test.
2014-08-19 23:07:40 +00:00
tmp = allocate_value (type);
value_contents_copy (tmp, 0, retval, 0, TYPE_LENGTH (type));
retval = tmp;
Print registers not saved in the frame as "<not saved>" instead of "<optimized out>". Currently, in some scenarios, GDB prints <optimized out> when printing outer frame registers. An <optimized out> register is a confusing concept. What this really means is that the register is call-clobbered, or IOW, not saved by the callee. This patch makes GDB say that instead. Before patch: (gdb) p/x $rax $1 = <optimized out> (gdb) info registers rax rax <optimized out> After patch: (gdb) p/x $rax $1 = <not saved> (gdb) info registers rax rax <not saved> However, if for some reason the debug info describes a variable as being in such a register (**), we still want to print <optimized out> when printing the variable. IOW, <not saved> is reserved for inspecting registers at the machine level. The patch uses lval_register+optimized_out to encode the not saved registers, and makes it so that optimized out variables always end up in !lval_register values. ** See <https://sourceware.org/ml/gdb-patches/2012-08/msg00787.html>. Current/recent enough GCC doesn't mark variables/arguments as being in call-clobbered registers in the ranges corresponding to function calls, while older GCCs did. Newer GCCs will just not say where the variable is, so GDB will end up realizing the variable is optimized out. frame_unwind_got_optimized creates not_lval optimized out registers, so by default, in most cases, we'll see <optimized out>. value_of_register is the function eval.c uses for evaluating OP_REGISTER (again, $pc, etc.), and related bits. It isn't used for anything else. This function makes sure to return lval_register values. The patch makes "info registers" and the MI equivalent use it too. I think it just makes a lot of sense, as this makes it so that when printing machine registers ($pc, etc.), we go through a central function. We're likely to need a different encoding at some point, if/when we support partially saved registers. Even then, I think value_of_register will still be the spot to tag the intention to print machine register values differently. value_from_register however may also return optimized out lval_register values, so at a couple places where we're computing a variable's location from a dwarf expression, we convert the resulting value away from lval_register to a regular optimized out value. Tested on x86_64 Fedora 17 gdb/ 2013-10-02 Pedro Alves <palves@redhat.com> * cp-valprint.c (cp_print_value_fields): Adjust calls to val_print_optimized_out. * jv-valprint.c (java_print_value_fields): Likewise. * p-valprint.c (pascal_object_print_value_fields): Likewise. * dwarf2loc.c (dwarf2_evaluate_loc_desc_full) <DWARF_VALUE_REGISTER>: If the register was not saved, return a new optimized out value. * findvar.c (address_from_register): Likewise. * frame.c (put_frame_register): Tweak error string to say the register was not saved, rather than optimized out. * infcmd.c (default_print_one_register_info): Adjust call to val_print_optimized_out. Use value_of_register instead of get_frame_register_value. * mi/mi-main.c (output_register): Use value_of_register instead of get_frame_register_value. * valprint.c (valprint_check_validity): Likewise. (val_print_optimized_out): New value parameter. If the value is lval_register, print <not saved> instead. (value_check_printable, val_print_scalar_formatted): Adjust calls to val_print_optimized_out. * valprint.h (val_print_optimized_out): New value parameter. * value.c (struct value) <optimized_out>: Extend comment. (error_value_optimized_out): New function. (require_not_optimized_out): Use it. Use a different string for lval_register values. * value.h (error_value_optimized_out): New declaration. * NEWS: Mention <not saved>. gdb/testsuite/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.dwarf2/dw2-reg-undefined.exp <pattern_rax_rbx_rcx_print, pattern_rax_rbx_rcx_info>: Set to "<not saved>". * gdb.mi/mi-reg-undefined.exp (opt_out_pattern): Delete. (not_saved_pattern): New. Replace use of the former with the latter. gdb/doc/ 2013-10-02 Pedro Alves <palves@redhat.com> * gdb.texinfo (Registers): Expand description of saved registers in frames. Explain <not saved>.
2013-10-02 16:15:46 +00:00
}
}
break;
case DWARF_VALUE_MEMORY:
{
ChangeLog: * dwarf2expr.h (struct dwarf_value_location): Use ULONGEST as type of stack values. (struct dwarf_expr_piece): Rename "expr" member to "mem". Add new "value" member. (dwarf_expr_push): Change input type to ULONGEST. (dwarf_expr_fetch): Change return type to ULONGEST. (dwarf_expr_fetch_address): Add prototype. (dwarf2_read_address): Remove prototype. * dwarf2expr.c (dwarf_expr_push): Use ULONGEST as type of stack values. Truncate stack values to ctx->addr_size bytes. (dwarf_expr_fetch): Change return value to ULONGEST. (dwarf_expr_fetch_address): New function. (add_piece): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. Update for struct dwarf_expr_piece changes. (dwarf2_read_address): Remove. (unsigned_address_type): Remove. (signed_address_type): Remove. (execute_stack_op): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. Use ULONGEST as type of stack values. Perform operations on ULONGEST instead of on GDB values, sign-extending from ctx->addr_size bytes as needed. Read DW_OP_addr values and DW_OP_deref results as unsigned integers. * dwarf2loc.c (read_pieced_value): Update for struct dwarf_expr_piece changes. (write_pieced_value): Likewise. (dwarf2_evaluate_loc_desc): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. (compile_dwarf_to_ax): Read DW_OP_addr values as unsigned integers. * dwarf2-frame.c (execute_stack_op): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch when appropriate. testsuite/ChangeLog: * gdb.cell/dwarfaddr.exp: New file. * gdb.cell/dwarfaddr.S: New file.
2010-06-25 13:00:33 +00:00
CORE_ADDR address = dwarf_expr_fetch_address (ctx, 0);
int in_stack_memory = dwarf_expr_fetch_in_stack_memory (ctx, 0);
do_cleanups (value_chain);
retval = value_at_lazy (type, address + byte_offset);
if (in_stack_memory)
set_value_stack (retval, 1);
}
break;
case DWARF_VALUE_STACK:
{
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
struct value *value = dwarf_expr_fetch (ctx, 0);
gdb_byte *contents;
const gdb_byte *val_bytes;
size_t n = TYPE_LENGTH (value_type (value));
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
if (byte_offset + TYPE_LENGTH (type) > n)
invalid_synthetic_pointer ();
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
val_bytes = value_contents_all (value);
val_bytes += byte_offset;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
n -= byte_offset;
/* Preserve VALUE because we are going to free values back
to the mark, but we still need the value contents
below. */
value_incref (value);
do_cleanups (value_chain);
make_cleanup_value_free (value);
retval = allocate_value (type);
contents = value_contents_raw (retval);
if (n > TYPE_LENGTH (type))
{
struct gdbarch *objfile_gdbarch = get_objfile_arch (objfile);
if (gdbarch_byte_order (objfile_gdbarch) == BFD_ENDIAN_BIG)
val_bytes += n - TYPE_LENGTH (type);
n = TYPE_LENGTH (type);
}
gdb PR gdb/12617: * value.h (value_from_contents): Declare. * value.c (value_from_contents): New function. * dwarf2read.c (dwarf_stack_op_name): Add new values. (dwarf2_get_die_type): New function. * dwarf2loc.c (dwarf_expr_get_base_type): New function. (allocate_piece_closure): Acquire reference to values. (read_pieced_value): Update for value-based expressions. (write_pieced_value): Likewise. (free_pieced_value_closure): Call value_free as needed. (dwarf2_evaluate_loc_desc_full): Set get_base_type field. Update for value-based expressions. * dwarf2loc.h (dwarf2_get_die_type): Declare. * dwarf2expr.h (struct dwarf_stack_value) <value>: Change type. <get_base_type>: New field. (struct dwarf_expr_piece) <v.value>: Change type. <v.regno>: New field. (struct dwarf_expr_context) <mark>: New field. (dwarf_expr_piece, dwarf_expr_fetch): Update. (dwarf_expr_pop, dwarf_expr_push): Remove. (dwarf_expr_push_address): Declare. * dwarf2expr.c (dwarf_arch_cookie): New global. (struct dwarf_gdbarch_types): New. (dwarf_gdbarch_types_init, dwarf_expr_address_type): New functions. (dwarf_expr_push): Change type of 'value' argument. Update. Now static. (dwarf_expr_push_address): New function. (dwarf_expr_pop): Now static. (dwarf_expr_fetch): Change return type. (dwarf_require_integral): New function. (dwarf_expr_fetch): Simplify. (add_piece): Update. (base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New functions. (execute_stack_op) <sign_ext>: Remove. Use values for DWARF stack. <DW_OP_GNU_const_type, DW_OP_GNU_deref_type, DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>: New cases. (_initialize_dwarf2expr): New function. (add_piece): Update. (new_dwarf_expr_context): Set new field. (free_dwarf_expr_context): Call value_free_to_mark. * dwarf2-frame.c (no_base_type): New function. (execute_stack_op): Set get_base_type field. Update. gdb/testsuite * gdb.dwarf2/typeddwarf.S: New file. * gdb.dwarf2/typeddwarf.c: New file. * gdb.dwarf2/typeddwarf.exp: New file.
2011-05-12 17:40:55 +00:00
memcpy (contents, val_bytes, n);
}
break;
case DWARF_VALUE_LITERAL:
{
bfd_byte *contents;
const bfd_byte *ldata;
size_t n = ctx->len;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
if (byte_offset + TYPE_LENGTH (type) > n)
invalid_synthetic_pointer ();
do_cleanups (value_chain);
retval = allocate_value (type);
contents = value_contents_raw (retval);
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
ldata = ctx->data + byte_offset;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
n -= byte_offset;
if (n > TYPE_LENGTH (type))
{
struct gdbarch *objfile_gdbarch = get_objfile_arch (objfile);
if (gdbarch_byte_order (objfile_gdbarch) == BFD_ENDIAN_BIG)
ldata += n - TYPE_LENGTH (type);
n = TYPE_LENGTH (type);
}
memcpy (contents, ldata, n);
}
break;
case DWARF_VALUE_OPTIMIZED_OUT:
do_cleanups (value_chain);
retval = allocate_optimized_out_value (type);
break;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
/* DWARF_VALUE_IMPLICIT_POINTER was converted to a pieced
operation by execute_stack_op. */
case DWARF_VALUE_IMPLICIT_POINTER:
/* DWARF_VALUE_OPTIMIZED_OUT can't occur in this context --
it can only be encountered when making a piece. */
default:
internal_error (__FILE__, __LINE__, _("invalid location type"));
}
}
set_value_initialized (retval, ctx->initialized);
do_cleanups (old_chain);
return retval;
}
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
/* The exported interface to dwarf2_evaluate_loc_desc_full; it always
passes 0 as the byte_offset. */
struct value *
dwarf2_evaluate_loc_desc (struct type *type, struct frame_info *frame,
const gdb_byte *data, size_t size,
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
struct dwarf2_per_cu_data *per_cu)
{
return dwarf2_evaluate_loc_desc_full (type, frame, data, size, per_cu, 0);
}
/* Evaluates a dwarf expression and stores the result in VAL, expecting
that the dwarf expression only produces a single CORE_ADDR. ADDR is a
context (location of a variable) and might be needed to evaluate the
location expression.
Returns 1 on success, 0 otherwise. */
static int
dwarf2_locexpr_baton_eval (const struct dwarf2_locexpr_baton *dlbaton,
CORE_ADDR addr,
CORE_ADDR *valp)
{
struct dwarf_expr_context *ctx;
struct dwarf_expr_baton baton;
struct objfile *objfile;
struct cleanup *cleanup;
if (dlbaton == NULL || dlbaton->size == 0)
return 0;
ctx = new_dwarf_expr_context ();
cleanup = make_cleanup_free_dwarf_expr_context (ctx);
baton.frame = get_selected_frame (NULL);
baton.per_cu = dlbaton->per_cu;
baton.obj_address = addr;
objfile = dwarf2_per_cu_objfile (dlbaton->per_cu);
ctx->gdbarch = get_objfile_arch (objfile);
ctx->addr_size = dwarf2_per_cu_addr_size (dlbaton->per_cu);
ctx->ref_addr_size = dwarf2_per_cu_ref_addr_size (dlbaton->per_cu);
ctx->offset = dwarf2_per_cu_text_offset (dlbaton->per_cu);
ctx->funcs = &dwarf_expr_ctx_funcs;
ctx->baton = &baton;
dwarf_expr_eval (ctx, dlbaton->data, dlbaton->size);
switch (ctx->location)
{
case DWARF_VALUE_REGISTER:
case DWARF_VALUE_MEMORY:
case DWARF_VALUE_STACK:
*valp = dwarf_expr_fetch_address (ctx, 0);
if (ctx->location == DWARF_VALUE_REGISTER)
*valp = dwarf_expr_read_addr_from_reg (&baton, *valp);
do_cleanups (cleanup);
return 1;
case DWARF_VALUE_LITERAL:
*valp = extract_signed_integer (ctx->data, ctx->len,
gdbarch_byte_order (ctx->gdbarch));
do_cleanups (cleanup);
return 1;
/* Unsupported dwarf values. */
case DWARF_VALUE_OPTIMIZED_OUT:
case DWARF_VALUE_IMPLICIT_POINTER:
break;
}
do_cleanups (cleanup);
return 0;
}
/* See dwarf2loc.h. */
int
dwarf2_evaluate_property (const struct dynamic_prop *prop,
CORE_ADDR address, CORE_ADDR *value)
{
if (prop == NULL)
return 0;
switch (prop->kind)
{
case PROP_LOCEXPR:
{
const struct dwarf2_property_baton *baton = prop->data.baton;
if (dwarf2_locexpr_baton_eval (&baton->locexpr, address, value))
{
if (baton->referenced_type)
{
struct value *val = value_at (baton->referenced_type, *value);
*value = value_as_address (val);
}
return 1;
}
}
break;
case PROP_LOCLIST:
{
struct dwarf2_property_baton *baton = prop->data.baton;
struct frame_info *frame = get_selected_frame (NULL);
CORE_ADDR pc = get_frame_address_in_block (frame);
const gdb_byte *data;
struct value *val;
size_t size;
data = dwarf2_find_location_expression (&baton->loclist, &size, pc);
if (data != NULL)
{
val = dwarf2_evaluate_loc_desc (baton->referenced_type, frame, data,
size, baton->loclist.per_cu);
if (!value_optimized_out (val))
{
*value = value_as_address (val);
return 1;
}
}
}
break;
case PROP_CONST:
*value = prop->data.const_val;
return 1;
}
return 0;
}
the "compile" command This final patch adds the new "compile" command and subcommands, and all the machinery needed to make it work. A shared library supplied by gcc is used for all communications with gcc. Types and most aspects of symbols are provided directly by gdb to the compiler using this library. gdb provides some information about the user's code using plain text. Macros are emitted this way, and DWARF location expressions (and bounds for VLA) are compiled to C code. This hybrid approach was taken because, on the one hand, it is better to provide global declarations and such on demand; but on the other hand, for local variables, translating DWARF location expressions to C was much simpler than exporting a full compiler API to gdb -- the same result, only easier to implement, understand, and debug. In the ordinary mode, the user's expression is wrapped in a dummy function. After compilation, gdb inserts the resulting object code into the inferior, then calls this function. Access to local variables is provided by noting which registers are used by location expressions, and passing a structure of register values into the function. Writes to registers are supported by copying out these values after the function returns. This approach was taken so that we could eventually implement other more interesting features based on this same infrastructure; for example, we're planning to investigate inferior-side breakpoint conditions. gdb/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Update. * symtab.h (struct symbol_computed_ops) <generate_c_location>: New field. * p-lang.c (pascal_language_defn): Update. * opencl-lang.c (opencl_language_defn): Update. * objc-lang.c (objc_language_defn): Update. * m2-lang.c (m2_language_defn): Update. * language.h (struct language_defn) <la_get_compile_instance, la_compute_program>: New fields. * language.c (unknown_language_defn, auto_language_defn) (local_language_defn): Update. * jv-lang.c (java_language_defn): Update. * go-lang.c (go_language_defn): Update. * f-lang.c (f_language_defn): Update. * dwarf2loc.h (dwarf2_compile_property_to_c): Declare. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): New functions. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Update. * defs.h (enum compile_i_scope_types): New. (enum command_control_type) <compile_control>: New constant. (struct command_line) <control_u>: New field. * d-lang.c (d_language_defn): Update. * compile/compile.c: New file. * compile/compile-c-support.c: New file. * compile/compile-c-symbols.c: New file. * compile/compile-c-types.c: New file. * compile/compile.h: New file. * compile/compile-internal.h: New file. * compile/compile-loc2c.c: New file. * compile/compile-object-load.c: New file. * compile/compile-object-load.h: New file. * compile/compile-object-run.c: New file. * compile/compile-object-run.h: New file. * cli/cli-script.c (multi_line_command_p, print_command_lines) (execute_control_command, process_next_line) (recurse_read_control_structure): Handle compile_control. * c-lang.h (c_get_compile_context, c_compute_program): Declare. * c-lang.c (c_language_defn, cplus_language_defn) (asm_language_defn, minimal_language_defn): Update. * ada-lang.c (ada_language_defn): Update. * Makefile.in (SUBDIR_GCC_COMPILE_OBS, SUBDIR_GCC_COMPILE_SRCS): New variables. (SFILES): Add SUBDIR_GCC_COMPILE_SRCS. (HFILES_NO_SRCDIR): Add compile.h. (COMMON_OBS): Add SUBDIR_GCC_COMPILE_OBS. (INIT_FILES): Add SUBDIR_GCC_COMPILE_SRCS. (compile.o, compile-c-types.o, compile-c-symbols.o) (compile-object-load.o, compile-object-run.o, compile-loc2c.o) (compile-c-support.o): New targets. gdb/doc/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.texinfo (Altering): Update. (Compiling and Injecting Code): New node. gdb/testsuite/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * configure.ac: Add gdb.compile/. * configure: Regenerate. * gdb.compile/Makefile.in: New file. * gdb.compile/compile-ops.exp: New file. * gdb.compile/compile-ops.c: New file. * gdb.compile/compile-tls.c: New file. * gdb.compile/compile-tls.exp: New file. * gdb.compile/compile-constvar.S: New file. * gdb.compile/compile-constvar.c: New file. * gdb.compile/compile-mod.c: New file. * gdb.compile/compile-nodebug.c: New file. * gdb.compile/compile-setjmp-mod.c: New file. * gdb.compile/compile-setjmp.c: New file. * gdb.compile/compile-setjmp.exp: New file. * gdb.compile/compile-shlib.c: New file. * gdb.compile/compile.c: New file. * gdb.compile/compile.exp: New file. * lib/gdb.exp (skip_compile_feature_tests): New proc.
2014-05-14 20:35:45 +00:00
/* See dwarf2loc.h. */
void
dwarf2_compile_property_to_c (struct ui_file *stream,
const char *result_name,
struct gdbarch *gdbarch,
unsigned char *registers_used,
const struct dynamic_prop *prop,
CORE_ADDR pc,
struct symbol *sym)
{
struct dwarf2_property_baton *baton = prop->data.baton;
const gdb_byte *data;
size_t size;
struct dwarf2_per_cu_data *per_cu;
if (prop->kind == PROP_LOCEXPR)
{
data = baton->locexpr.data;
size = baton->locexpr.size;
per_cu = baton->locexpr.per_cu;
}
else
{
gdb_assert (prop->kind == PROP_LOCLIST);
data = dwarf2_find_location_expression (&baton->loclist, &size, pc);
per_cu = baton->loclist.per_cu;
}
compile_dwarf_bounds_to_c (stream, result_name, prop, sym, pc,
gdbarch, registers_used,
dwarf2_per_cu_addr_size (per_cu),
data, data + size, per_cu);
}
/* Helper functions and baton for dwarf2_loc_desc_needs_frame. */
struct needs_frame_baton
{
int needs_frame;
struct dwarf2_per_cu_data *per_cu;
};
/* Reads from registers do require a frame. */
static CORE_ADDR
needs_frame_read_addr_from_reg (void *baton, int regnum)
{
struct needs_frame_baton *nf_baton = baton;
nf_baton->needs_frame = 1;
return 1;
}
Fix DW_OP_GNU_regval_type with FP registers Consider the following code, compiled at -O2 on ppc-linux: procedure Increment (Val : in out Float; Msg : String); The implementation does not really matter in this case). In our example, this function is being called from a function with Param_1 set to 99.0. Trying to break inside that function, and running until reaching that breakpoint yields: (gdb) b increment Breakpoint 1 at 0x100014b4: file callee.adb, line 6. (gdb) run Starting program: /[...]/foo Breakpoint 1, callee.increment (val=99.0, val@entry=0.0, msg=...) at callee.adb:6 6 if Val > 200.0 then The @entry value for parameter "val" is incorrect, it should be 99.0. The associated call-site parameter DIE looks like this: .uleb128 0xc # (DIE (0x115) DW_TAG_GNU_call_site_parameter) .byte 0x2 # DW_AT_location .byte 0x90 # DW_OP_regx .uleb128 0x21 .byte 0x3 # DW_AT_GNU_call_site_value .byte 0xf5 # DW_OP_GNU_regval_type .uleb128 0x3f .uleb128 0x25 The DW_AT_GNU_call_site_value uses a DW_OP_GNU_regval_type operation, referencing register 0x3f=63, which is $f31, an 8-byte floating register. In that register, the value is stored using the usual 8-byte float format: (gdb) info float f31 99.0 (raw 0x4058c00000000000) The current code evaluating DW_OP_GNU_regval_type operations currently is (dwarf2expr.c:execute_stack_op): result = (ctx->funcs->read_reg) (ctx->baton, reg); result_val = value_from_ulongest (address_type, result); result_val = value_from_contents (type, value_contents_all (result_val)); What the ctx->funcs->read_reg function does is read the contents of the register as if it contained an address. The rest of the code continues that assumption, thinking it's OK to then use that to create an address/ulongest struct value, which we then re-type to the type specified by DW_OP_GNU_regval_type. We're getting 0.0 above because the read_reg implementations end up treating the contents of the FP register as an integral, reading only 4 out of the 8 bytes. Being a big-endian target, we read the high-order ones, which gives us zero. This patch fixes the problem by introducing a new callback to read the contents of a register as a given type, and then adjust the handling of DW_OP_GNU_regval_type to use that new callback. gdb/ChangeLog: * dwarf2expr.h (struct dwarf_expr_context_funcs) <read_reg>: Extend the documentation a bit. <get_reg_value>: New field. * dwarf2loc.c (dwarf_expr_get_reg_value) (needs_frame_get_reg_value): New functions. (dwarf_expr_ctx_funcs, needs_frame_ctx_funcs): Add "get_reg_value" callback. * dwarf2-frame.c (get_reg_value): New function. (dwarf2_frame_ctx_funcs): Add "get_reg_value" callback. * dwarf2expr.c (execute_stack_op) <DW_OP_GNU_regval_type>: Use new callback to compute result_val. gdb/testsuite/ChangeLog: * gdb.ada/O2_float_param: New testcase.
2013-10-31 05:36:21 +00:00
/* struct dwarf_expr_context_funcs' "get_reg_value" callback:
Reads from registers do require a frame. */
static struct value *
needs_frame_get_reg_value (void *baton, struct type *type, int regnum)
{
struct needs_frame_baton *nf_baton = baton;
nf_baton->needs_frame = 1;
return value_zero (type, not_lval);
}
/* Reads from memory do not require a frame. */
static void
* dwarf2expr.h: Tweak comment. (struct dwarf_expr_context): Use `gdb_byte *' in read_mem and get_frame_base function pointers. (read_uleb128, read_sleb128): Change return type and types of first two arguments to `gdb_byte *'. (dwarf2_read_address): Change types of first two arguments to `gdb_byte *'. * dwarf2expr.c: Tweak comment. (dwarf_expr_eval): Change type of second argument to `gdb_byte *'. (read_uleb128, read_sleb128): Change return type and types of first two arguments to `gdb_byte *'. (dwarf2_read_address): Change types of first two arguments to `gdb_byte *'. (execute_stack_op): Change types of last two arguments to `gdb_byte *'. Use `gdb_byte *' for byte buffers. * dwarf2loc.h: Tweak comment. (struct dwarf2_locexpr_baton, struct dwarf2_loclist_baton): Use `gdb_byte *' for byte buffers. * dwarf2loc.c (find_location_expression): Change return type to `gdb_byte *'. Use `gdb_byte *' for byte buffers. Change length to `unsigned int'. (dwarf_expr_read_reg): Use `gdb_byte *' for byte buffer. Remove bogus cast. (dwarf_expr_read_mem): Change type of second argument to `gdb_byte *'. (dwarf_expr_frame_base): Change type of second argument to `gdb_byte **'. (dwarf2_evaluate_loc_desc): Change type of third argument to `gdb_byte *'. (needs_frame_read_mem): Change type of second argument to `gdb_byte *'. (needs_frame_frame_base): Change type of second argument `gdb_byte **'. Use gdb_byte for lit0. (dwarf2_tracepoint_var_ref): Change type of fourth argument to `gdb_byte *'. Use `gdb_byte *' for byte buffer. (loclist_read_variable, loclist_tracepoint_var_ref): Use `gdb_byte *' for byte buffer. * dwarf2-frame.c (struct dwarf2_cie, struct dwarf2_fde) (struct dwarf2_frame_state): Use gdb_byte instead of `unsigned char'. (read_reg): Use `gdb_byte *' for byte buffers. Remove redundant cast. (read_mem): Change second argument to `gdb_byte *'. (no_get_frame_base): Change second argument to `gdb_byte **'. (execute_stack_op): Change first argument to `gdb_byte *'. (execute_cfa_program): Change first two arguments to `gdb_byte *'. Use gdb_byte instead of `unsigned int'. Use temprorary variable to store result of read_uleb128. (struct comp_unit): Use `gdb_byte *' for byte buffers. (read_1_byte, read_4_bytes, read_8_bytes): Change last argument to `gdb_byte *'. (read_unsigned_leb128, read_signed_leb128): Change second argument to `gdb_byte *'. Use gdb_byte instead of `unsigned char'. (read_initial_length): Change second argument to `gdb_byte *'. Remove redundant casts. (read_encoded_value): Use gdb_byte instead of `unsigned char'. Remove bogus casts. (decode_frame_entry_1): Change return type and second argument to `gdb_byte *'. Use `gdb_byte *' for byte buffers. Use gdb_byte instead of `unsigned char'. (decode_frame_entry): Change return type and second argument to `gdb_byte *'. Use `gdb_byte *' for byte buffers. (dwarf2_build_frame_info): Use `gdb_byte *' for byte buffers.
2005-07-12 13:06:54 +00:00
needs_frame_read_mem (void *baton, gdb_byte *buf, CORE_ADDR addr, size_t len)
{
memset (buf, 0, len);
}
/* Frame-relative accesses do require a frame. */
static void
needs_frame_frame_base (void *baton, const gdb_byte **start, size_t * length)
{
* dwarf2expr.h: Tweak comment. (struct dwarf_expr_context): Use `gdb_byte *' in read_mem and get_frame_base function pointers. (read_uleb128, read_sleb128): Change return type and types of first two arguments to `gdb_byte *'. (dwarf2_read_address): Change types of first two arguments to `gdb_byte *'. * dwarf2expr.c: Tweak comment. (dwarf_expr_eval): Change type of second argument to `gdb_byte *'. (read_uleb128, read_sleb128): Change return type and types of first two arguments to `gdb_byte *'. (dwarf2_read_address): Change types of first two arguments to `gdb_byte *'. (execute_stack_op): Change types of last two arguments to `gdb_byte *'. Use `gdb_byte *' for byte buffers. * dwarf2loc.h: Tweak comment. (struct dwarf2_locexpr_baton, struct dwarf2_loclist_baton): Use `gdb_byte *' for byte buffers. * dwarf2loc.c (find_location_expression): Change return type to `gdb_byte *'. Use `gdb_byte *' for byte buffers. Change length to `unsigned int'. (dwarf_expr_read_reg): Use `gdb_byte *' for byte buffer. Remove bogus cast. (dwarf_expr_read_mem): Change type of second argument to `gdb_byte *'. (dwarf_expr_frame_base): Change type of second argument to `gdb_byte **'. (dwarf2_evaluate_loc_desc): Change type of third argument to `gdb_byte *'. (needs_frame_read_mem): Change type of second argument to `gdb_byte *'. (needs_frame_frame_base): Change type of second argument `gdb_byte **'. Use gdb_byte for lit0. (dwarf2_tracepoint_var_ref): Change type of fourth argument to `gdb_byte *'. Use `gdb_byte *' for byte buffer. (loclist_read_variable, loclist_tracepoint_var_ref): Use `gdb_byte *' for byte buffer. * dwarf2-frame.c (struct dwarf2_cie, struct dwarf2_fde) (struct dwarf2_frame_state): Use gdb_byte instead of `unsigned char'. (read_reg): Use `gdb_byte *' for byte buffers. Remove redundant cast. (read_mem): Change second argument to `gdb_byte *'. (no_get_frame_base): Change second argument to `gdb_byte **'. (execute_stack_op): Change first argument to `gdb_byte *'. (execute_cfa_program): Change first two arguments to `gdb_byte *'. Use gdb_byte instead of `unsigned int'. Use temprorary variable to store result of read_uleb128. (struct comp_unit): Use `gdb_byte *' for byte buffers. (read_1_byte, read_4_bytes, read_8_bytes): Change last argument to `gdb_byte *'. (read_unsigned_leb128, read_signed_leb128): Change second argument to `gdb_byte *'. Use gdb_byte instead of `unsigned char'. (read_initial_length): Change second argument to `gdb_byte *'. Remove redundant casts. (read_encoded_value): Use gdb_byte instead of `unsigned char'. Remove bogus casts. (decode_frame_entry_1): Change return type and second argument to `gdb_byte *'. Use `gdb_byte *' for byte buffers. Use gdb_byte instead of `unsigned char'. (decode_frame_entry): Change return type and second argument to `gdb_byte *'. Use `gdb_byte *' for byte buffers. (dwarf2_build_frame_info): Use `gdb_byte *' for byte buffers.
2005-07-12 13:06:54 +00:00
static gdb_byte lit0 = DW_OP_lit0;
struct needs_frame_baton *nf_baton = baton;
*start = &lit0;
*length = 1;
nf_baton->needs_frame = 1;
}
/* CFA accesses require a frame. */
static CORE_ADDR
needs_frame_frame_cfa (void *baton)
{
struct needs_frame_baton *nf_baton = baton;
nf_baton->needs_frame = 1;
return 1;
}
/* Thread-local accesses do require a frame. */
static CORE_ADDR
needs_frame_tls_address (void *baton, CORE_ADDR offset)
{
struct needs_frame_baton *nf_baton = baton;
nf_baton->needs_frame = 1;
return 1;
}
/* Helper interface of per_cu_dwarf_call for dwarf2_loc_desc_needs_frame. */
static void
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
needs_frame_dwarf_call (struct dwarf_expr_context *ctx, cu_offset die_offset)
{
struct needs_frame_baton *nf_baton = ctx->baton;
per_cu_dwarf_call (ctx, die_offset, nf_baton->per_cu,
ctx->funcs->get_frame_pc, ctx->baton);
}
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
/* DW_OP_GNU_entry_value accesses require a caller, therefore a frame. */
static void
needs_dwarf_reg_entry_value (struct dwarf_expr_context *ctx,
enum call_site_parameter_kind kind,
union call_site_parameter_u kind_u, int deref_size)
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
{
struct needs_frame_baton *nf_baton = ctx->baton;
nf_baton->needs_frame = 1;
/* The expression may require some stub values on DWARF stack. */
dwarf_expr_push_address (ctx, 0, 0);
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
}
Initial support for Fission. http://gcc.gnu.org/wiki/DebugFission * symfile.c (default_symfile_relocate): Use sectp->owner instead of objfile->obfd. * symfile.h (dwarf2_debug_sections): New member addr. * dwarf2expr.c (execute_stack_op): New case DW_OP_GNU_addr_index. (ctx_no_get_addr_index): New function. * dwarf2expr.h (dwarf_expr_context_funcs): New member get_addr_index. (ctx_no_get_addr_index): Declare. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Update. * dwarf2loc.c (dwarf_expr_get_addr_index): New function. (dwarf_expr_ctx_funcs): Update. (needs_get_addr_index): New function. (needs_frame_ctx_funcs): Update. * dwarf2loc.h (dwarf2_read_addr_index): Declare. * dwarf2read.c: #include "gdbcore.h". (dwarf2_per_objfile): New members addr, dwo_files. (dwarf2_elf_names): Add entry for addr. (struct dwo_section_names): New type. (dwo_section_names): New static global. (dwarf2_cu): New members dwo_unit, addr_base, have_addr_base. (dwarf2_per_cu_data): New member is_debug_types, all boolean uses of old debug_types_section member updated to use this. Rename member debug_types_section to info_or_types_section, all uses updated. (signatured_type): Rename member type_offset to type_offset_in_tu, all uses updated. New member type_offset_in_section. (struct dwo_sections): New type. (struct dwo_unit): New type. (struct dwo_file): New type. (die_reader_specs): New member dwo_file. (dwarf2_locate_sections): Watch for .debug_addr. (zlib_decompress_section): Use sectp->owner instead of objfile->obfd. (dwarf2_read_section): Get bfd of section from bfd's asection, instead of objfile. (create_cus_from_index): Initialize the_cu->info_or_types_section. (create_signatured_type_table_from_index): Initialize sig_type->info_or_types_section. (dw2_get_file_names): Statement lists for type units with DWO files live in the DWO file. (create_debug_types_hash_table): New function. (create_all_type_units): Rewrite. (init_cu_die_reader): New arg dwo_file, all callers updated. (init_and_read_dies_worker): Get section from this_cu->info_or_types_section. Set sig_type->type_offset_in_section. Watch for DW_AT_GNU_dwo_name and if present lookup the file and continue reading the CU/TU from there. (init_cutu_and_read_dies_no_follow): New arg dwo_file, all callers updated. Get section from this_cu->info_or_types_section. (create_all_comp_units): Initialize this_cu->info_or_types_section. (skip_one_die): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (hash_dwo_file, eq_dwo_file): New functions. (allocate_dwo_file_hash_table): New function. (hash_dwo_unit, eq_dwo_unit): New functions. (allocate_dwo_unit_table): New function. (dwarf2_locate_dwo_sections): New function. (struct create_dwo_info_table_data): New type. (create_debug_info_hash_table_reader): New function. (create_debug_info_hash_table): New function. (try_open_dwo_file, open_dwo_file, init_dwo_file): New function. (lookup_dwo_file): New function. (lookup_dwo_comp_unit, lookup_dwo_type_unit): New functions. (free_dwo_file, free_dwo_file_cleanup): New functions. (free_dwo_file_from_slot, free_dwo_files): New functions. (dwarf2_get_pc_bounds): Handle DW_FORM_GNU_addr_index. (dwarf2_record_block_ranges): Ditto. (read_partial_die): Ditto. (process_enumeration_scope): Update to use type_offset_in_section. (read_full_die_1): New function. (read_full_die): Rewrite. (read_attribute_value): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (read_addr_index_1, read_addr_index): New functions. (read_addr_index_from_leb128): New function. (struct dwarf2_read_addr_index_data): New type. (dwarf2_read_addr_index_reader): New function. (dwarf2_read_addr_index): New function. (read_str_index): New function. (leb128_size): New function. (dwarf_decode_line_header): Delete arg abfd, all callers updated. If processing a type unit from a DWO file, get the line section from the DWO file. (var_decode_location): Watch for DW_OP_GNU_addr_index. (dwarf2_const_value_attr): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (lookup_die_type): Check whether section offset of type's die is known before looking it up. Remove assert. Condition can legimately happen for inter-cu type references. (dwarf_attr_name): Handle Fission attributes. (dwarf_form_name): Handle Fission forms. (dump_die_shallow): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (follow_die_sig): Update to use type_offset_in_section. (decode_locdesc): New case DW_OP_GNU_addr_index. (skip_form_bytes): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (cu_debug_loc_section): New function. (fill_in_loclist_baton, dwarf2_symbol_mark_computed): Call it. (dwarf2_per_objfile_free): Unmap .debug_addr section. Free DWO files if present. * xcoffread.c (dwarf2_xcoff_names): Add .debug_addr. testsuite/ * gdb.dwarf2/dw2-intercu.S (.Ltype_int2_in_cu2): Renamed from .Ltype_int_in_cu2. Use name "int2" instead of "int". All uses updated. * gdb.dwarf2/dw2-intercu.exp: Add "ptype int2" ahead of "ptype func_cu1" to expand cu2 before cu1.
2012-04-28 23:22:14 +00:00
/* DW_OP_GNU_addr_index doesn't require a frame. */
static CORE_ADDR
needs_get_addr_index (void *baton, unsigned int index)
{
/* Nothing to do. */
return 1;
}
/* DW_OP_push_object_address has a frame already passed through. */
static CORE_ADDR
needs_get_obj_addr (void *baton)
{
/* Nothing to do. */
return 1;
}
/* Virtual method table for dwarf2_loc_desc_needs_frame below. */
static const struct dwarf_expr_context_funcs needs_frame_ctx_funcs =
{
needs_frame_read_addr_from_reg,
Fix DW_OP_GNU_regval_type with FP registers Consider the following code, compiled at -O2 on ppc-linux: procedure Increment (Val : in out Float; Msg : String); The implementation does not really matter in this case). In our example, this function is being called from a function with Param_1 set to 99.0. Trying to break inside that function, and running until reaching that breakpoint yields: (gdb) b increment Breakpoint 1 at 0x100014b4: file callee.adb, line 6. (gdb) run Starting program: /[...]/foo Breakpoint 1, callee.increment (val=99.0, val@entry=0.0, msg=...) at callee.adb:6 6 if Val > 200.0 then The @entry value for parameter "val" is incorrect, it should be 99.0. The associated call-site parameter DIE looks like this: .uleb128 0xc # (DIE (0x115) DW_TAG_GNU_call_site_parameter) .byte 0x2 # DW_AT_location .byte 0x90 # DW_OP_regx .uleb128 0x21 .byte 0x3 # DW_AT_GNU_call_site_value .byte 0xf5 # DW_OP_GNU_regval_type .uleb128 0x3f .uleb128 0x25 The DW_AT_GNU_call_site_value uses a DW_OP_GNU_regval_type operation, referencing register 0x3f=63, which is $f31, an 8-byte floating register. In that register, the value is stored using the usual 8-byte float format: (gdb) info float f31 99.0 (raw 0x4058c00000000000) The current code evaluating DW_OP_GNU_regval_type operations currently is (dwarf2expr.c:execute_stack_op): result = (ctx->funcs->read_reg) (ctx->baton, reg); result_val = value_from_ulongest (address_type, result); result_val = value_from_contents (type, value_contents_all (result_val)); What the ctx->funcs->read_reg function does is read the contents of the register as if it contained an address. The rest of the code continues that assumption, thinking it's OK to then use that to create an address/ulongest struct value, which we then re-type to the type specified by DW_OP_GNU_regval_type. We're getting 0.0 above because the read_reg implementations end up treating the contents of the FP register as an integral, reading only 4 out of the 8 bytes. Being a big-endian target, we read the high-order ones, which gives us zero. This patch fixes the problem by introducing a new callback to read the contents of a register as a given type, and then adjust the handling of DW_OP_GNU_regval_type to use that new callback. gdb/ChangeLog: * dwarf2expr.h (struct dwarf_expr_context_funcs) <read_reg>: Extend the documentation a bit. <get_reg_value>: New field. * dwarf2loc.c (dwarf_expr_get_reg_value) (needs_frame_get_reg_value): New functions. (dwarf_expr_ctx_funcs, needs_frame_ctx_funcs): Add "get_reg_value" callback. * dwarf2-frame.c (get_reg_value): New function. (dwarf2_frame_ctx_funcs): Add "get_reg_value" callback. * dwarf2expr.c (execute_stack_op) <DW_OP_GNU_regval_type>: Use new callback to compute result_val. gdb/testsuite/ChangeLog: * gdb.ada/O2_float_param: New testcase.
2013-10-31 05:36:21 +00:00
needs_frame_get_reg_value,
needs_frame_read_mem,
needs_frame_frame_base,
needs_frame_frame_cfa,
needs_frame_frame_cfa, /* get_frame_pc */
needs_frame_tls_address,
needs_frame_dwarf_call,
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
NULL, /* get_base_type */
Initial support for Fission. http://gcc.gnu.org/wiki/DebugFission * symfile.c (default_symfile_relocate): Use sectp->owner instead of objfile->obfd. * symfile.h (dwarf2_debug_sections): New member addr. * dwarf2expr.c (execute_stack_op): New case DW_OP_GNU_addr_index. (ctx_no_get_addr_index): New function. * dwarf2expr.h (dwarf_expr_context_funcs): New member get_addr_index. (ctx_no_get_addr_index): Declare. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Update. * dwarf2loc.c (dwarf_expr_get_addr_index): New function. (dwarf_expr_ctx_funcs): Update. (needs_get_addr_index): New function. (needs_frame_ctx_funcs): Update. * dwarf2loc.h (dwarf2_read_addr_index): Declare. * dwarf2read.c: #include "gdbcore.h". (dwarf2_per_objfile): New members addr, dwo_files. (dwarf2_elf_names): Add entry for addr. (struct dwo_section_names): New type. (dwo_section_names): New static global. (dwarf2_cu): New members dwo_unit, addr_base, have_addr_base. (dwarf2_per_cu_data): New member is_debug_types, all boolean uses of old debug_types_section member updated to use this. Rename member debug_types_section to info_or_types_section, all uses updated. (signatured_type): Rename member type_offset to type_offset_in_tu, all uses updated. New member type_offset_in_section. (struct dwo_sections): New type. (struct dwo_unit): New type. (struct dwo_file): New type. (die_reader_specs): New member dwo_file. (dwarf2_locate_sections): Watch for .debug_addr. (zlib_decompress_section): Use sectp->owner instead of objfile->obfd. (dwarf2_read_section): Get bfd of section from bfd's asection, instead of objfile. (create_cus_from_index): Initialize the_cu->info_or_types_section. (create_signatured_type_table_from_index): Initialize sig_type->info_or_types_section. (dw2_get_file_names): Statement lists for type units with DWO files live in the DWO file. (create_debug_types_hash_table): New function. (create_all_type_units): Rewrite. (init_cu_die_reader): New arg dwo_file, all callers updated. (init_and_read_dies_worker): Get section from this_cu->info_or_types_section. Set sig_type->type_offset_in_section. Watch for DW_AT_GNU_dwo_name and if present lookup the file and continue reading the CU/TU from there. (init_cutu_and_read_dies_no_follow): New arg dwo_file, all callers updated. Get section from this_cu->info_or_types_section. (create_all_comp_units): Initialize this_cu->info_or_types_section. (skip_one_die): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (hash_dwo_file, eq_dwo_file): New functions. (allocate_dwo_file_hash_table): New function. (hash_dwo_unit, eq_dwo_unit): New functions. (allocate_dwo_unit_table): New function. (dwarf2_locate_dwo_sections): New function. (struct create_dwo_info_table_data): New type. (create_debug_info_hash_table_reader): New function. (create_debug_info_hash_table): New function. (try_open_dwo_file, open_dwo_file, init_dwo_file): New function. (lookup_dwo_file): New function. (lookup_dwo_comp_unit, lookup_dwo_type_unit): New functions. (free_dwo_file, free_dwo_file_cleanup): New functions. (free_dwo_file_from_slot, free_dwo_files): New functions. (dwarf2_get_pc_bounds): Handle DW_FORM_GNU_addr_index. (dwarf2_record_block_ranges): Ditto. (read_partial_die): Ditto. (process_enumeration_scope): Update to use type_offset_in_section. (read_full_die_1): New function. (read_full_die): Rewrite. (read_attribute_value): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (read_addr_index_1, read_addr_index): New functions. (read_addr_index_from_leb128): New function. (struct dwarf2_read_addr_index_data): New type. (dwarf2_read_addr_index_reader): New function. (dwarf2_read_addr_index): New function. (read_str_index): New function. (leb128_size): New function. (dwarf_decode_line_header): Delete arg abfd, all callers updated. If processing a type unit from a DWO file, get the line section from the DWO file. (var_decode_location): Watch for DW_OP_GNU_addr_index. (dwarf2_const_value_attr): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (lookup_die_type): Check whether section offset of type's die is known before looking it up. Remove assert. Condition can legimately happen for inter-cu type references. (dwarf_attr_name): Handle Fission attributes. (dwarf_form_name): Handle Fission forms. (dump_die_shallow): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (follow_die_sig): Update to use type_offset_in_section. (decode_locdesc): New case DW_OP_GNU_addr_index. (skip_form_bytes): New cases DW_FORM_GNU_addr_index, DW_FORM_GNU_str_index. (cu_debug_loc_section): New function. (fill_in_loclist_baton, dwarf2_symbol_mark_computed): Call it. (dwarf2_per_objfile_free): Unmap .debug_addr section. Free DWO files if present. * xcoffread.c (dwarf2_xcoff_names): Add .debug_addr. testsuite/ * gdb.dwarf2/dw2-intercu.S (.Ltype_int2_in_cu2): Renamed from .Ltype_int_in_cu2. Use name "int2" instead of "int". All uses updated. * gdb.dwarf2/dw2-intercu.exp: Add "ptype int2" ahead of "ptype func_cu1" to expand cu2 before cu1.
2012-04-28 23:22:14 +00:00
needs_dwarf_reg_entry_value,
needs_get_addr_index,
needs_get_obj_addr
};
/* Return non-zero iff the location expression at DATA (length SIZE)
requires a frame to evaluate. */
static int
dwarf2_loc_desc_needs_frame (const gdb_byte *data, size_t size,
2008-03-18 Ulrich Weigand <uweigand@de.ibm.com> Jim Blandy <jimb@codesourcery.com> Daniel Jacobowitz <drow@false.org> * dwarf2expr.h (struct dwarf_expr_context): Add ADDR_SIZE member. (dwarf2_read_address): Update prototype. * dwarf2expr.c (unsigned_address_type): Add ADDR_SIZE parameter. (signed_address_type): Likewise. (dwarf2_read_address): Replace BYTES_READ parameter with ADDR_SIZE. (execute_stack_op): Update calls to unsigned_address_type, signed_address_type and dwarf2_read_address. Fix implementation of DW_OP_deref_size. * dwarf2loc.h (dwarf2_per_cu_objfile): Add prototype. (dwarf2_per_cu_addr_size): Likewise. (struct dwarf2_locexpr_baton): Replace OBJFILE with PER_CU. (struct dwarf2_loclist_baton): Likewise. * dwarf2loc.c (find_location_expression): Update calls to dwarf2_read_address. Use dwarf2_per_cu_objfile and dwarf2_per_cu_addr_size to retrieve PER_CU parameters. (locexpr_describe_location): Likewise. (dwarf2_evaluate_loc_desc): Replace OBJFILE with PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (dwarf2_loc_desc_needs_frame): Add PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (locexpr_read_variable): Update dwarf2_evaluate_loc_desc call. (loclist_read_variable): Likewise. (locexpr_read_needs_frame): Update dwarf2_loc_desc_needs_frame call. * dwarf2read.c (dwarf2_symbol_mark_computed): Set baton->per_cu instead of baton->objfile. (dwarf2_per_cu_obfile): New function. (dwarf2_per_cu_addr_size): Likewise. * dwarf2-frame.c (struct comp_unit): Move higher. (struct dwarf2_cie): Add UNIT and ADDR_SIZE members. (execute_stack_op): Add ADDR_SIZE parameter; set ctx->addr_size. (execute_cfa_program): Add FDE parameter. Replace EH_FRAME_P parameter by using fde->eh_frame_p. Use read_encoded_value to implement DW_CFA_set_loc. (struct dwarf2_frame_cache): Add ADDR_SIZE member. (dwarf2_frame_cache): Set cache->addr_size. Update calls to execute_stack_op and execute_cfa_program. (dwarf2_frame_prev_register): Update calls to execute_stack_op. (size_of_encoded_value): Remove. (read_encoded_value): Add PTR_LEN and FUNC_BASE parameters. Remove call to size_of_encoded_value. Implement DW_EH_PE_funcrel. (add_cie): Set cie->unit backlink. (decode_frame_entry_1): Set cie->addr_size. Update calls to read_encoded_value. (dwarf2_build_frame_info): Allocate UNIT on objfile obstack.
2008-03-18 19:40:47 +00:00
struct dwarf2_per_cu_data *per_cu)
{
struct needs_frame_baton baton;
struct dwarf_expr_context *ctx;
int in_reg;
struct cleanup *old_chain;
struct objfile *objfile = dwarf2_per_cu_objfile (per_cu);
baton.needs_frame = 0;
baton.per_cu = per_cu;
ctx = new_dwarf_expr_context ();
old_chain = make_cleanup_free_dwarf_expr_context (ctx);
make_cleanup_value_free_to_mark (value_mark ());
ctx->gdbarch = get_objfile_arch (objfile);
2008-03-18 Ulrich Weigand <uweigand@de.ibm.com> Jim Blandy <jimb@codesourcery.com> Daniel Jacobowitz <drow@false.org> * dwarf2expr.h (struct dwarf_expr_context): Add ADDR_SIZE member. (dwarf2_read_address): Update prototype. * dwarf2expr.c (unsigned_address_type): Add ADDR_SIZE parameter. (signed_address_type): Likewise. (dwarf2_read_address): Replace BYTES_READ parameter with ADDR_SIZE. (execute_stack_op): Update calls to unsigned_address_type, signed_address_type and dwarf2_read_address. Fix implementation of DW_OP_deref_size. * dwarf2loc.h (dwarf2_per_cu_objfile): Add prototype. (dwarf2_per_cu_addr_size): Likewise. (struct dwarf2_locexpr_baton): Replace OBJFILE with PER_CU. (struct dwarf2_loclist_baton): Likewise. * dwarf2loc.c (find_location_expression): Update calls to dwarf2_read_address. Use dwarf2_per_cu_objfile and dwarf2_per_cu_addr_size to retrieve PER_CU parameters. (locexpr_describe_location): Likewise. (dwarf2_evaluate_loc_desc): Replace OBJFILE with PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (dwarf2_loc_desc_needs_frame): Add PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (locexpr_read_variable): Update dwarf2_evaluate_loc_desc call. (loclist_read_variable): Likewise. (locexpr_read_needs_frame): Update dwarf2_loc_desc_needs_frame call. * dwarf2read.c (dwarf2_symbol_mark_computed): Set baton->per_cu instead of baton->objfile. (dwarf2_per_cu_obfile): New function. (dwarf2_per_cu_addr_size): Likewise. * dwarf2-frame.c (struct comp_unit): Move higher. (struct dwarf2_cie): Add UNIT and ADDR_SIZE members. (execute_stack_op): Add ADDR_SIZE parameter; set ctx->addr_size. (execute_cfa_program): Add FDE parameter. Replace EH_FRAME_P parameter by using fde->eh_frame_p. Use read_encoded_value to implement DW_CFA_set_loc. (struct dwarf2_frame_cache): Add ADDR_SIZE member. (dwarf2_frame_cache): Set cache->addr_size. Update calls to execute_stack_op and execute_cfa_program. (dwarf2_frame_prev_register): Update calls to execute_stack_op. (size_of_encoded_value): Remove. (read_encoded_value): Add PTR_LEN and FUNC_BASE parameters. Remove call to size_of_encoded_value. Implement DW_EH_PE_funcrel. (add_cie): Set cie->unit backlink. (decode_frame_entry_1): Set cie->addr_size. Update calls to read_encoded_value. (dwarf2_build_frame_info): Allocate UNIT on objfile obstack.
2008-03-18 19:40:47 +00:00
ctx->addr_size = dwarf2_per_cu_addr_size (per_cu);
ctx->ref_addr_size = dwarf2_per_cu_ref_addr_size (per_cu);
ctx->offset = dwarf2_per_cu_text_offset (per_cu);
ctx->baton = &baton;
ctx->funcs = &needs_frame_ctx_funcs;
dwarf_expr_eval (ctx, data, size);
in_reg = ctx->location == DWARF_VALUE_REGISTER;
if (ctx->num_pieces > 0)
{
int i;
/* If the location has several pieces, and any of them are in
registers, then we will need a frame to fetch them from. */
for (i = 0; i < ctx->num_pieces; i++)
if (ctx->pieces[i].location == DWARF_VALUE_REGISTER)
in_reg = 1;
}
do_cleanups (old_chain);
return baton.needs_frame || in_reg;
}
/* A helper function that throws an unimplemented error mentioning a
given DWARF operator. */
static void
unimplemented (unsigned int op)
{
const char *name = get_DW_OP_name (op);
if (name)
error (_("DWARF operator %s cannot be translated to an agent expression"),
name);
else
error (_("Unknown DWARF operator 0x%02x cannot be translated "
"to an agent expression"),
op);
}
/* See dwarf2loc.h. */
int
dwarf2_reg_to_regnum_or_error (struct gdbarch *arch, int dwarf_reg)
{
int reg = gdbarch_dwarf2_reg_to_regnum (arch, dwarf_reg);
if (reg == -1)
error (_("Unable to access DWARF register number %d"), dwarf_reg);
return reg;
}
/* A helper function that emits an access to memory. ARCH is the
target architecture. EXPR is the expression which we are building.
NBITS is the number of bits we want to read. This emits the
opcodes needed to read the memory and then extract the desired
bits. */
static void
access_memory (struct gdbarch *arch, struct agent_expr *expr, ULONGEST nbits)
{
ULONGEST nbytes = (nbits + 7) / 8;
gdb_assert (nbytes > 0 && nbytes <= sizeof (LONGEST));
if (expr->tracing)
ax_trace_quick (expr, nbytes);
if (nbits <= 8)
ax_simple (expr, aop_ref8);
else if (nbits <= 16)
ax_simple (expr, aop_ref16);
else if (nbits <= 32)
ax_simple (expr, aop_ref32);
else
ax_simple (expr, aop_ref64);
/* If we read exactly the number of bytes we wanted, we're done. */
if (8 * nbytes == nbits)
return;
if (gdbarch_bits_big_endian (arch))
{
/* On a bits-big-endian machine, we want the high-order
NBITS. */
ax_const_l (expr, 8 * nbytes - nbits);
ax_simple (expr, aop_rsh_unsigned);
}
else
{
/* On a bits-little-endian box, we want the low-order NBITS. */
ax_zero_ext (expr, nbits);
}
}
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
/* A helper function to return the frame's PC. */
static CORE_ADDR
get_ax_pc (void *baton)
{
struct agent_expr *expr = baton;
return expr->scope;
}
/* Compile a DWARF location expression to an agent expression.
EXPR is the agent expression we are building.
LOC is the agent value we modify.
ARCH is the architecture.
ADDR_SIZE is the size of addresses, in bytes.
OP_PTR is the start of the location expression.
OP_END is one past the last byte of the location expression.
This will throw an exception for various kinds of errors -- for
example, if the expression cannot be compiled, or if the expression
is invalid. */
void
dwarf2_compile_expr_to_ax (struct agent_expr *expr, struct axs_value *loc,
struct gdbarch *arch, unsigned int addr_size,
const gdb_byte *op_ptr, const gdb_byte *op_end,
struct dwarf2_per_cu_data *per_cu)
{
struct cleanup *cleanups;
int i, *offsets;
VEC(int) *dw_labels = NULL, *patches = NULL;
const gdb_byte * const base = op_ptr;
const gdb_byte *previous_piece = op_ptr;
enum bfd_endian byte_order = gdbarch_byte_order (arch);
ULONGEST bits_collected = 0;
unsigned int addr_size_bits = 8 * addr_size;
int bits_big_endian = gdbarch_bits_big_endian (arch);
offsets = xmalloc ((op_end - op_ptr) * sizeof (int));
cleanups = make_cleanup (xfree, offsets);
for (i = 0; i < op_end - op_ptr; ++i)
offsets[i] = -1;
make_cleanup (VEC_cleanup (int), &dw_labels);
make_cleanup (VEC_cleanup (int), &patches);
/* By default we are making an address. */
loc->kind = axs_lvalue_memory;
while (op_ptr < op_end)
{
enum dwarf_location_atom op = *op_ptr;
uint64_t uoffset, reg;
int64_t offset;
int i;
offsets[op_ptr - base] = expr->len;
++op_ptr;
/* Our basic approach to code generation is to map DWARF
operations directly to AX operations. However, there are
some differences.
First, DWARF works on address-sized units, but AX always uses
LONGEST. For most operations we simply ignore this
difference; instead we generate sign extensions as needed
before division and comparison operations. It would be nice
to omit the sign extensions, but there is no way to determine
the size of the target's LONGEST. (This code uses the size
of the host LONGEST in some cases -- that is a bug but it is
difficult to fix.)
Second, some DWARF operations cannot be translated to AX.
For these we simply fail. See
http://sourceware.org/bugzilla/show_bug.cgi?id=11662. */
switch (op)
{
case DW_OP_lit0:
case DW_OP_lit1:
case DW_OP_lit2:
case DW_OP_lit3:
case DW_OP_lit4:
case DW_OP_lit5:
case DW_OP_lit6:
case DW_OP_lit7:
case DW_OP_lit8:
case DW_OP_lit9:
case DW_OP_lit10:
case DW_OP_lit11:
case DW_OP_lit12:
case DW_OP_lit13:
case DW_OP_lit14:
case DW_OP_lit15:
case DW_OP_lit16:
case DW_OP_lit17:
case DW_OP_lit18:
case DW_OP_lit19:
case DW_OP_lit20:
case DW_OP_lit21:
case DW_OP_lit22:
case DW_OP_lit23:
case DW_OP_lit24:
case DW_OP_lit25:
case DW_OP_lit26:
case DW_OP_lit27:
case DW_OP_lit28:
case DW_OP_lit29:
case DW_OP_lit30:
case DW_OP_lit31:
ax_const_l (expr, op - DW_OP_lit0);
break;
case DW_OP_addr:
uoffset = extract_unsigned_integer (op_ptr, addr_size, byte_order);
op_ptr += addr_size;
/* Some versions of GCC emit DW_OP_addr before
DW_OP_GNU_push_tls_address. In this case the value is an
index, not an address. We don't support things like
branching between the address and the TLS op. */
if (op_ptr >= op_end || *op_ptr != DW_OP_GNU_push_tls_address)
uoffset += dwarf2_per_cu_text_offset (per_cu);
ax_const_l (expr, uoffset);
break;
case DW_OP_const1u:
ax_const_l (expr, extract_unsigned_integer (op_ptr, 1, byte_order));
op_ptr += 1;
break;
case DW_OP_const1s:
ax_const_l (expr, extract_signed_integer (op_ptr, 1, byte_order));
op_ptr += 1;
break;
case DW_OP_const2u:
ax_const_l (expr, extract_unsigned_integer (op_ptr, 2, byte_order));
op_ptr += 2;
break;
case DW_OP_const2s:
ax_const_l (expr, extract_signed_integer (op_ptr, 2, byte_order));
op_ptr += 2;
break;
case DW_OP_const4u:
ax_const_l (expr, extract_unsigned_integer (op_ptr, 4, byte_order));
op_ptr += 4;
break;
case DW_OP_const4s:
ax_const_l (expr, extract_signed_integer (op_ptr, 4, byte_order));
op_ptr += 4;
break;
case DW_OP_const8u:
ax_const_l (expr, extract_unsigned_integer (op_ptr, 8, byte_order));
op_ptr += 8;
break;
case DW_OP_const8s:
ax_const_l (expr, extract_signed_integer (op_ptr, 8, byte_order));
op_ptr += 8;
break;
case DW_OP_constu:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_uleb128 (op_ptr, op_end, &uoffset);
ax_const_l (expr, uoffset);
break;
case DW_OP_consts:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset);
ax_const_l (expr, offset);
break;
case DW_OP_reg0:
case DW_OP_reg1:
case DW_OP_reg2:
case DW_OP_reg3:
case DW_OP_reg4:
case DW_OP_reg5:
case DW_OP_reg6:
case DW_OP_reg7:
case DW_OP_reg8:
case DW_OP_reg9:
case DW_OP_reg10:
case DW_OP_reg11:
case DW_OP_reg12:
case DW_OP_reg13:
case DW_OP_reg14:
case DW_OP_reg15:
case DW_OP_reg16:
case DW_OP_reg17:
case DW_OP_reg18:
case DW_OP_reg19:
case DW_OP_reg20:
case DW_OP_reg21:
case DW_OP_reg22:
case DW_OP_reg23:
case DW_OP_reg24:
case DW_OP_reg25:
case DW_OP_reg26:
case DW_OP_reg27:
case DW_OP_reg28:
case DW_OP_reg29:
case DW_OP_reg30:
case DW_OP_reg31:
dwarf_expr_require_composition (op_ptr, op_end, "DW_OP_regx");
loc->u.reg = dwarf2_reg_to_regnum_or_error (arch, op - DW_OP_reg0);
loc->kind = axs_lvalue_register;
break;
case DW_OP_regx:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_uleb128 (op_ptr, op_end, &reg);
dwarf_expr_require_composition (op_ptr, op_end, "DW_OP_regx");
loc->u.reg = dwarf2_reg_to_regnum_or_error (arch, reg);
loc->kind = axs_lvalue_register;
break;
case DW_OP_implicit_value:
{
uint64_t len;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_uleb128 (op_ptr, op_end, &len);
if (op_ptr + len > op_end)
error (_("DW_OP_implicit_value: too few bytes available."));
if (len > sizeof (ULONGEST))
error (_("Cannot translate DW_OP_implicit_value of %d bytes"),
(int) len);
ax_const_l (expr, extract_unsigned_integer (op_ptr, len,
byte_order));
op_ptr += len;
dwarf_expr_require_composition (op_ptr, op_end,
"DW_OP_implicit_value");
loc->kind = axs_rvalue;
}
break;
case DW_OP_stack_value:
dwarf_expr_require_composition (op_ptr, op_end, "DW_OP_stack_value");
loc->kind = axs_rvalue;
break;
case DW_OP_breg0:
case DW_OP_breg1:
case DW_OP_breg2:
case DW_OP_breg3:
case DW_OP_breg4:
case DW_OP_breg5:
case DW_OP_breg6:
case DW_OP_breg7:
case DW_OP_breg8:
case DW_OP_breg9:
case DW_OP_breg10:
case DW_OP_breg11:
case DW_OP_breg12:
case DW_OP_breg13:
case DW_OP_breg14:
case DW_OP_breg15:
case DW_OP_breg16:
case DW_OP_breg17:
case DW_OP_breg18:
case DW_OP_breg19:
case DW_OP_breg20:
case DW_OP_breg21:
case DW_OP_breg22:
case DW_OP_breg23:
case DW_OP_breg24:
case DW_OP_breg25:
case DW_OP_breg26:
case DW_OP_breg27:
case DW_OP_breg28:
case DW_OP_breg29:
case DW_OP_breg30:
case DW_OP_breg31:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset);
i = dwarf2_reg_to_regnum_or_error (arch, op - DW_OP_breg0);
ax_reg (expr, i);
if (offset != 0)
{
ax_const_l (expr, offset);
ax_simple (expr, aop_add);
}
break;
case DW_OP_bregx:
{
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_uleb128 (op_ptr, op_end, &reg);
op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset);
i = dwarf2_reg_to_regnum_or_error (arch, reg);
ax_reg (expr, i);
if (offset != 0)
{
ax_const_l (expr, offset);
ax_simple (expr, aop_add);
}
}
break;
case DW_OP_fbreg:
{
const gdb_byte *datastart;
size_t datalen;
constify struct block in some places This makes some spots in gdb, particularly general_symbol_info, use a "const struct block", then fixes the fallout. The justification is that, ordinarily, blocks ought to be readonly. Note though that we can't add "const" in the blockvector due to block relocation. This can be done once blocks are made independent of the program space. 2014-06-18 Tom Tromey <tromey@redhat.com> * varobj.c (varobj_create): Update. * valops.c (value_of_this): Update. * tracepoint.c (add_local_symbols, scope_info): Update. * symtab.h (struct general_symbol_info) <block>: Now const. * symtab.c (skip_prologue_sal) (default_make_symbol_completion_list_break_on) (skip_prologue_using_sal): Update. * stack.h (iterate_over_block_locals) (iterate_over_block_local_vars): Update. * stack.c (print_frame_args): Update. (iterate_over_block_locals, iterate_over_block_local_vars): Make parameter const. (get_selected_block): Make return type const. * python/py-frame.c (frapy_block): Update. * python/py-block.c (gdbpy_block_for_pc): Update. * p-exp.y (%union) <bval>: Now const. * mi/mi-cmd-stack.c (list_args_or_locals): Update. * mdebugread.c (mylookup_symbol, parse_procedure): Update. * m2-exp.y (%union) <bval>: Now const. * linespec.c (get_current_search_block): Make return type const. (create_sals_line_offset, find_label_symbols): Update. * inline-frame.c (inline_frame_sniffer, skip_inline_frames): Update. (block_starting_point_at): Make "block" const. * infrun.c (insert_exception_resume_breakpoint): Make "b" const. (check_exception_resume): Update. * guile/scm-frame.c (gdbscm_frame_block): Update. * guile/scm-block.c (gdbscm_lookup_block): Update. * frame.h (get_frame_block): Update. (get_selected_block): Make return type const. * frame.c (frame_id_inner): Update. * f-valprint.c (info_common_command_for_block) (info_common_command): Update. * dwarf2loc.c (dwarf2_find_location_expression) (dwarf_expr_frame_base, dwarf2_compile_expr_to_ax) (locexpr_describe_location_piece): Update. * c-exp.y (%union) <bval>: Now const. * breakpoint.c (resolve_sal_pc): Update. * blockframe.c (get_frame_block):Make return type const. (get_pc_function_start, get_frame_function, find_pc_sect_function) (block_innermost_frame): Update. * block.h (blockvector_for_pc, blockvector_for_pc_sect) (block_for_pc, block_for_pc_sect): Update. * block.c (blockvector_for_pc_sect, blockvector_for_pc): Make 'pblock' const. (block_for_pc_sect, block_for_pc): Make return type const. * ax-gdb.c (gen_expr): Update. * alpha-mdebug-tdep.c (find_proc_desc): Update. * ada-lang.c (ada_read_renaming_var_value): Make 'block' const. (ada_make_symbol_completion_list, ada_add_exceptions_from_frame) (ada_read_var_value): Update. * ada-exp.y (struct name_info) <block>: Now const. (%union): Likewise. (block_lookup): Constify.
2013-03-12 15:51:37 +00:00
const struct block *b;
struct symbol *framefunc;
b = block_for_pc (expr->scope);
if (!b)
error (_("No block found for address"));
framefunc = block_linkage_function (b);
if (!framefunc)
error (_("No function found for block"));
func_get_frame_base_dwarf_block (framefunc, expr->scope,
&datastart, &datalen);
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_sleb128 (op_ptr, op_end, &offset);
dwarf2_compile_expr_to_ax (expr, loc, arch, addr_size, datastart,
datastart + datalen, per_cu);
if (loc->kind == axs_lvalue_register)
require_rvalue (expr, loc);
if (offset != 0)
{
ax_const_l (expr, offset);
ax_simple (expr, aop_add);
}
loc->kind = axs_lvalue_memory;
}
break;
case DW_OP_dup:
ax_simple (expr, aop_dup);
break;
case DW_OP_drop:
ax_simple (expr, aop_pop);
break;
case DW_OP_pick:
offset = *op_ptr++;
ax_pick (expr, offset);
break;
case DW_OP_swap:
ax_simple (expr, aop_swap);
break;
case DW_OP_over:
ax_pick (expr, 1);
break;
case DW_OP_rot:
ax_simple (expr, aop_rot);
break;
case DW_OP_deref:
case DW_OP_deref_size:
{
int size;
if (op == DW_OP_deref_size)
size = *op_ptr++;
else
size = addr_size;
if (size != 1 && size != 2 && size != 4 && size != 8)
error (_("Unsupported size %d in %s"),
size, get_DW_OP_name (op));
access_memory (arch, expr, size * TARGET_CHAR_BIT);
}
break;
case DW_OP_abs:
/* Sign extend the operand. */
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_dup);
ax_const_l (expr, 0);
ax_simple (expr, aop_less_signed);
ax_simple (expr, aop_log_not);
i = ax_goto (expr, aop_if_goto);
/* We have to emit 0 - X. */
ax_const_l (expr, 0);
ax_simple (expr, aop_swap);
ax_simple (expr, aop_sub);
ax_label (expr, i, expr->len);
break;
case DW_OP_neg:
/* No need to sign extend here. */
ax_const_l (expr, 0);
ax_simple (expr, aop_swap);
ax_simple (expr, aop_sub);
break;
case DW_OP_not:
/* Sign extend the operand. */
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_bit_not);
break;
case DW_OP_plus_uconst:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_uleb128 (op_ptr, op_end, &reg);
/* It would be really weird to emit `DW_OP_plus_uconst 0',
but we micro-optimize anyhow. */
if (reg != 0)
{
ax_const_l (expr, reg);
ax_simple (expr, aop_add);
}
break;
case DW_OP_and:
ax_simple (expr, aop_bit_and);
break;
case DW_OP_div:
/* Sign extend the operands. */
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
ax_simple (expr, aop_div_signed);
break;
case DW_OP_minus:
ax_simple (expr, aop_sub);
break;
case DW_OP_mod:
ax_simple (expr, aop_rem_unsigned);
break;
case DW_OP_mul:
ax_simple (expr, aop_mul);
break;
case DW_OP_or:
ax_simple (expr, aop_bit_or);
break;
case DW_OP_plus:
ax_simple (expr, aop_add);
break;
case DW_OP_shl:
ax_simple (expr, aop_lsh);
break;
case DW_OP_shr:
ax_simple (expr, aop_rsh_unsigned);
break;
case DW_OP_shra:
ax_simple (expr, aop_rsh_signed);
break;
case DW_OP_xor:
ax_simple (expr, aop_bit_xor);
break;
case DW_OP_le:
/* Sign extend the operands. */
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
ax_ext (expr, addr_size_bits);
/* Note no swap here: A <= B is !(B < A). */
ax_simple (expr, aop_less_signed);
ax_simple (expr, aop_log_not);
break;
case DW_OP_ge:
/* Sign extend the operands. */
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
/* A >= B is !(A < B). */
ax_simple (expr, aop_less_signed);
ax_simple (expr, aop_log_not);
break;
case DW_OP_eq:
/* Sign extend the operands. */
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
ax_ext (expr, addr_size_bits);
/* No need for a second swap here. */
ax_simple (expr, aop_equal);
break;
case DW_OP_lt:
/* Sign extend the operands. */
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
ax_simple (expr, aop_less_signed);
break;
case DW_OP_gt:
/* Sign extend the operands. */
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
ax_ext (expr, addr_size_bits);
/* Note no swap here: A > B is B < A. */
ax_simple (expr, aop_less_signed);
break;
case DW_OP_ne:
/* Sign extend the operands. */
ax_ext (expr, addr_size_bits);
ax_simple (expr, aop_swap);
ax_ext (expr, addr_size_bits);
/* No need for a swap here. */
ax_simple (expr, aop_equal);
ax_simple (expr, aop_log_not);
break;
case DW_OP_call_frame_cfa:
{
int regnum;
CORE_ADDR text_offset;
LONGEST off;
const gdb_byte *cfa_start, *cfa_end;
if (dwarf2_fetch_cfa_info (arch, expr->scope, per_cu,
&regnum, &off,
&text_offset, &cfa_start, &cfa_end))
{
/* Register. */
ax_reg (expr, regnum);
if (off != 0)
{
ax_const_l (expr, off);
ax_simple (expr, aop_add);
}
}
else
{
/* Another expression. */
ax_const_l (expr, text_offset);
dwarf2_compile_expr_to_ax (expr, loc, arch, addr_size,
cfa_start, cfa_end, per_cu);
}
loc->kind = axs_lvalue_memory;
}
break;
case DW_OP_GNU_push_tls_address:
unimplemented (op);
break;
case DW_OP_push_object_address:
unimplemented (op);
break;
case DW_OP_skip:
offset = extract_signed_integer (op_ptr, 2, byte_order);
op_ptr += 2;
i = ax_goto (expr, aop_goto);
VEC_safe_push (int, dw_labels, op_ptr + offset - base);
VEC_safe_push (int, patches, i);
break;
case DW_OP_bra:
offset = extract_signed_integer (op_ptr, 2, byte_order);
op_ptr += 2;
/* Zero extend the operand. */
ax_zero_ext (expr, addr_size_bits);
i = ax_goto (expr, aop_if_goto);
VEC_safe_push (int, dw_labels, op_ptr + offset - base);
VEC_safe_push (int, patches, i);
break;
case DW_OP_nop:
break;
case DW_OP_piece:
case DW_OP_bit_piece:
{
uint64_t size, offset;
if (op_ptr - 1 == previous_piece)
error (_("Cannot translate empty pieces to agent expressions"));
previous_piece = op_ptr - 1;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_uleb128 (op_ptr, op_end, &size);
if (op == DW_OP_piece)
{
size *= 8;
offset = 0;
}
else
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
op_ptr = safe_read_uleb128 (op_ptr, op_end, &offset);
if (bits_collected + size > 8 * sizeof (LONGEST))
error (_("Expression pieces exceed word size"));
/* Access the bits. */
switch (loc->kind)
{
case axs_lvalue_register:
ax_reg (expr, loc->u.reg);
break;
case axs_lvalue_memory:
/* Offset the pointer, if needed. */
if (offset > 8)
{
ax_const_l (expr, offset / 8);
ax_simple (expr, aop_add);
offset %= 8;
}
access_memory (arch, expr, size);
break;
}
/* For a bits-big-endian target, shift up what we already
have. For a bits-little-endian target, shift up the
new data. Note that there is a potential bug here if
the DWARF expression leaves multiple values on the
stack. */
if (bits_collected > 0)
{
if (bits_big_endian)
{
ax_simple (expr, aop_swap);
ax_const_l (expr, size);
ax_simple (expr, aop_lsh);
/* We don't need a second swap here, because
aop_bit_or is symmetric. */
}
else
{
ax_const_l (expr, size);
ax_simple (expr, aop_lsh);
}
ax_simple (expr, aop_bit_or);
}
bits_collected += size;
loc->kind = axs_rvalue;
}
break;
case DW_OP_GNU_uninit:
unimplemented (op);
case DW_OP_call2:
case DW_OP_call4:
{
struct dwarf2_locexpr_baton block;
int size = (op == DW_OP_call2 ? 2 : 4);
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
cu_offset offset;
uoffset = extract_unsigned_integer (op_ptr, size, byte_order);
op_ptr += size;
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
offset.cu_off = uoffset;
block = dwarf2_fetch_die_loc_cu_off (offset, per_cu,
get_ax_pc, expr);
/* DW_OP_call_ref is currently not supported. */
gdb_assert (block.per_cu == per_cu);
dwarf2_compile_expr_to_ax (expr, loc, arch, addr_size,
block.data, block.data + block.size,
per_cu);
}
break;
case DW_OP_call_ref:
unimplemented (op);
default:
unimplemented (op);
}
}
/* Patch all the branches we emitted. */
for (i = 0; i < VEC_length (int, patches); ++i)
{
int targ = offsets[VEC_index (int, dw_labels, i)];
if (targ == -1)
internal_error (__FILE__, __LINE__, _("invalid label"));
ax_label (expr, VEC_index (int, patches, i), targ);
}
do_cleanups (cleanups);
}
/* Return the value of SYMBOL in FRAME using the DWARF-2 expression
evaluator to calculate the location. */
static struct value *
locexpr_read_variable (struct symbol *symbol, struct frame_info *frame)
{
struct dwarf2_locexpr_baton *dlbaton = SYMBOL_LOCATION_BATON (symbol);
struct value *val;
val = dwarf2_evaluate_loc_desc (SYMBOL_TYPE (symbol), frame, dlbaton->data,
dlbaton->size, dlbaton->per_cu);
return val;
}
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
/* Return the value of SYMBOL in FRAME at (callee) FRAME's function
entry. SYMBOL should be a function parameter, otherwise NO_ENTRY_VALUE_ERROR
will be thrown. */
static struct value *
locexpr_read_variable_at_entry (struct symbol *symbol, struct frame_info *frame)
{
struct dwarf2_locexpr_baton *dlbaton = SYMBOL_LOCATION_BATON (symbol);
return value_of_dwarf_block_entry (SYMBOL_TYPE (symbol), frame, dlbaton->data,
dlbaton->size);
}
/* Return non-zero iff we need a frame to evaluate SYMBOL. */
static int
locexpr_read_needs_frame (struct symbol *symbol)
{
struct dwarf2_locexpr_baton *dlbaton = SYMBOL_LOCATION_BATON (symbol);
2008-03-18 Ulrich Weigand <uweigand@de.ibm.com> Jim Blandy <jimb@codesourcery.com> Daniel Jacobowitz <drow@false.org> * dwarf2expr.h (struct dwarf_expr_context): Add ADDR_SIZE member. (dwarf2_read_address): Update prototype. * dwarf2expr.c (unsigned_address_type): Add ADDR_SIZE parameter. (signed_address_type): Likewise. (dwarf2_read_address): Replace BYTES_READ parameter with ADDR_SIZE. (execute_stack_op): Update calls to unsigned_address_type, signed_address_type and dwarf2_read_address. Fix implementation of DW_OP_deref_size. * dwarf2loc.h (dwarf2_per_cu_objfile): Add prototype. (dwarf2_per_cu_addr_size): Likewise. (struct dwarf2_locexpr_baton): Replace OBJFILE with PER_CU. (struct dwarf2_loclist_baton): Likewise. * dwarf2loc.c (find_location_expression): Update calls to dwarf2_read_address. Use dwarf2_per_cu_objfile and dwarf2_per_cu_addr_size to retrieve PER_CU parameters. (locexpr_describe_location): Likewise. (dwarf2_evaluate_loc_desc): Replace OBJFILE with PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (dwarf2_loc_desc_needs_frame): Add PER_CU parameter. Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu). (locexpr_read_variable): Update dwarf2_evaluate_loc_desc call. (loclist_read_variable): Likewise. (locexpr_read_needs_frame): Update dwarf2_loc_desc_needs_frame call. * dwarf2read.c (dwarf2_symbol_mark_computed): Set baton->per_cu instead of baton->objfile. (dwarf2_per_cu_obfile): New function. (dwarf2_per_cu_addr_size): Likewise. * dwarf2-frame.c (struct comp_unit): Move higher. (struct dwarf2_cie): Add UNIT and ADDR_SIZE members. (execute_stack_op): Add ADDR_SIZE parameter; set ctx->addr_size. (execute_cfa_program): Add FDE parameter. Replace EH_FRAME_P parameter by using fde->eh_frame_p. Use read_encoded_value to implement DW_CFA_set_loc. (struct dwarf2_frame_cache): Add ADDR_SIZE member. (dwarf2_frame_cache): Set cache->addr_size. Update calls to execute_stack_op and execute_cfa_program. (dwarf2_frame_prev_register): Update calls to execute_stack_op. (size_of_encoded_value): Remove. (read_encoded_value): Add PTR_LEN and FUNC_BASE parameters. Remove call to size_of_encoded_value. Implement DW_EH_PE_funcrel. (add_cie): Set cie->unit backlink. (decode_frame_entry_1): Set cie->addr_size. Update calls to read_encoded_value. (dwarf2_build_frame_info): Allocate UNIT on objfile obstack.
2008-03-18 19:40:47 +00:00
return dwarf2_loc_desc_needs_frame (dlbaton->data, dlbaton->size,
dlbaton->per_cu);
}
/* Return true if DATA points to the end of a piece. END is one past
the last byte in the expression. */
static int
piece_end_p (const gdb_byte *data, const gdb_byte *end)
{
return data == end || data[0] == DW_OP_piece || data[0] == DW_OP_bit_piece;
}
/* Helper for locexpr_describe_location_piece that finds the name of a
DWARF register. */
static const char *
locexpr_regname (struct gdbarch *gdbarch, int dwarf_regnum)
{
int regnum;
regnum = gdbarch_dwarf2_reg_to_regnum (gdbarch, dwarf_regnum);
return gdbarch_register_name (gdbarch, regnum);
}
/* Nicely describe a single piece of a location, returning an updated
position in the bytecode sequence. This function cannot recognize
all locations; if a location is not recognized, it simply returns
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
DATA. If there is an error during reading, e.g. we run off the end
of the buffer, an error is thrown. */
static const gdb_byte *
locexpr_describe_location_piece (struct symbol *symbol, struct ui_file *stream,
CORE_ADDR addr, struct objfile *objfile,
struct dwarf2_per_cu_data *per_cu,
const gdb_byte *data, const gdb_byte *end,
unsigned int addr_size)
{
struct gdbarch *gdbarch = get_objfile_arch (objfile);
size_t leb128_size;
if (data[0] >= DW_OP_reg0 && data[0] <= DW_OP_reg31)
{
fprintf_filtered (stream, _("a variable in $%s"),
locexpr_regname (gdbarch, data[0] - DW_OP_reg0));
data += 1;
}
else if (data[0] == DW_OP_regx)
{
uint64_t reg;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data + 1, end, &reg);
fprintf_filtered (stream, _("a variable in $%s"),
locexpr_regname (gdbarch, reg));
}
else if (data[0] == DW_OP_fbreg)
{
constify struct block in some places This makes some spots in gdb, particularly general_symbol_info, use a "const struct block", then fixes the fallout. The justification is that, ordinarily, blocks ought to be readonly. Note though that we can't add "const" in the blockvector due to block relocation. This can be done once blocks are made independent of the program space. 2014-06-18 Tom Tromey <tromey@redhat.com> * varobj.c (varobj_create): Update. * valops.c (value_of_this): Update. * tracepoint.c (add_local_symbols, scope_info): Update. * symtab.h (struct general_symbol_info) <block>: Now const. * symtab.c (skip_prologue_sal) (default_make_symbol_completion_list_break_on) (skip_prologue_using_sal): Update. * stack.h (iterate_over_block_locals) (iterate_over_block_local_vars): Update. * stack.c (print_frame_args): Update. (iterate_over_block_locals, iterate_over_block_local_vars): Make parameter const. (get_selected_block): Make return type const. * python/py-frame.c (frapy_block): Update. * python/py-block.c (gdbpy_block_for_pc): Update. * p-exp.y (%union) <bval>: Now const. * mi/mi-cmd-stack.c (list_args_or_locals): Update. * mdebugread.c (mylookup_symbol, parse_procedure): Update. * m2-exp.y (%union) <bval>: Now const. * linespec.c (get_current_search_block): Make return type const. (create_sals_line_offset, find_label_symbols): Update. * inline-frame.c (inline_frame_sniffer, skip_inline_frames): Update. (block_starting_point_at): Make "block" const. * infrun.c (insert_exception_resume_breakpoint): Make "b" const. (check_exception_resume): Update. * guile/scm-frame.c (gdbscm_frame_block): Update. * guile/scm-block.c (gdbscm_lookup_block): Update. * frame.h (get_frame_block): Update. (get_selected_block): Make return type const. * frame.c (frame_id_inner): Update. * f-valprint.c (info_common_command_for_block) (info_common_command): Update. * dwarf2loc.c (dwarf2_find_location_expression) (dwarf_expr_frame_base, dwarf2_compile_expr_to_ax) (locexpr_describe_location_piece): Update. * c-exp.y (%union) <bval>: Now const. * breakpoint.c (resolve_sal_pc): Update. * blockframe.c (get_frame_block):Make return type const. (get_pc_function_start, get_frame_function, find_pc_sect_function) (block_innermost_frame): Update. * block.h (blockvector_for_pc, blockvector_for_pc_sect) (block_for_pc, block_for_pc_sect): Update. * block.c (blockvector_for_pc_sect, blockvector_for_pc): Make 'pblock' const. (block_for_pc_sect, block_for_pc): Make return type const. * ax-gdb.c (gen_expr): Update. * alpha-mdebug-tdep.c (find_proc_desc): Update. * ada-lang.c (ada_read_renaming_var_value): Make 'block' const. (ada_make_symbol_completion_list, ada_add_exceptions_from_frame) (ada_read_var_value): Update. * ada-exp.y (struct name_info) <block>: Now const. (%union): Likewise. (block_lookup): Constify.
2013-03-12 15:51:37 +00:00
const struct block *b;
struct symbol *framefunc;
int frame_reg = 0;
int64_t frame_offset;
const gdb_byte *base_data, *new_data, *save_data = data;
size_t base_size;
int64_t base_offset = 0;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
new_data = safe_read_sleb128 (data + 1, end, &frame_offset);
if (!piece_end_p (new_data, end))
return data;
data = new_data;
b = block_for_pc (addr);
if (!b)
error (_("No block found for address for symbol \"%s\"."),
SYMBOL_PRINT_NAME (symbol));
framefunc = block_linkage_function (b);
if (!framefunc)
error (_("No function found for block for symbol \"%s\"."),
SYMBOL_PRINT_NAME (symbol));
func_get_frame_base_dwarf_block (framefunc, addr, &base_data, &base_size);
if (base_data[0] >= DW_OP_breg0 && base_data[0] <= DW_OP_breg31)
{
const gdb_byte *buf_end;
frame_reg = base_data[0] - DW_OP_breg0;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
buf_end = safe_read_sleb128 (base_data + 1, base_data + base_size,
&base_offset);
if (buf_end != base_data + base_size)
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 22:22:53 +00:00
error (_("Unexpected opcode after "
"DW_OP_breg%u for symbol \"%s\"."),
frame_reg, SYMBOL_PRINT_NAME (symbol));
}
else if (base_data[0] >= DW_OP_reg0 && base_data[0] <= DW_OP_reg31)
{
/* The frame base is just the register, with no offset. */
frame_reg = base_data[0] - DW_OP_reg0;
base_offset = 0;
}
else
{
/* We don't know what to do with the frame base expression,
so we can't trace this variable; give up. */
return save_data;
}
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 22:22:53 +00:00
fprintf_filtered (stream,
_("a variable at frame base reg $%s offset %s+%s"),
locexpr_regname (gdbarch, frame_reg),
plongest (base_offset), plongest (frame_offset));
}
else if (data[0] >= DW_OP_breg0 && data[0] <= DW_OP_breg31
&& piece_end_p (data, end))
{
int64_t offset;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_sleb128 (data + 1, end, &offset);
fprintf_filtered (stream,
_("a variable at offset %s from base reg $%s"),
plongest (offset),
locexpr_regname (gdbarch, data[0] - DW_OP_breg0));
}
/* The location expression for a TLS variable looks like this (on a
64-bit LE machine):
DW_AT_location : 10 byte block: 3 4 0 0 0 0 0 0 0 e0
(DW_OP_addr: 4; DW_OP_GNU_push_tls_address)
0x3 is the encoding for DW_OP_addr, which has an operand as long
as the size of an address on the target machine (here is 8
bytes). Note that more recent version of GCC emit DW_OP_const4u
or DW_OP_const8u, depending on address size, rather than
2011-01-07 Michael Snyder <msnyder@vmware.com> * ada-lang.c: Comment cleanup, mostly periods and spaces. * ada-lang.h: Ditto. * ada-tasks.c: Ditto. * ada-valprint.c: Ditto. * aix-threads.c: Ditto. * alpha-linux-nat.c: Ditto. * alpha-linux-tdep.c: Ditto. * alpha-mdebug-tdep.c: Ditto. * alpha-nat.c: Ditto. * alpha-osf1-tdep.c: Ditto. * alpha-tdep.c: Ditto. * alphabsd-nat.c: Ditto. * alphabsd-tdep.c: Ditto. * amd64-darwin-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * amd64-sol2-tdep.c: Ditto. * amd64-tdep.c: Ditto. * amd64-fbsd-tdep.c: Ditto. * amd64-nbsd-tdep.c: Ditto. * amd64-obsd-tdep.c: Ditto. * amd64-linux-nat.c: Ditto. * amd64-linux-tdep.c: Ditto. * arm-tdep.c: Ditto. * arm-tdep.h: Ditto. * armnbsd-nat.c: Ditto. * avr-tdep.c: Ditto. * bfin-tdep.c: Ditto. * bsd-kvm.c: Ditto. * c-typeprintc: Ditto. * c-valprint.c: Ditto. * coff-pe-read.h: Ditto. * coffreead.c: Ditto. * cris-tdep.c: Ditto. * d-lang.c: Ditto. * darwin-nat-info.c: Ditto. * darwin-nat.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * dcache.c: Ditto. * dcache.h: Ditto. * dec-thread.c: Ditto. * defs.h: Ditto. * demangle.c: Ditto. * dicos-tdep.c: Ditto. * dictionary.c: Ditto. * dictionary.h: Ditto. * dink32-rom.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dsrec.c: Ditto. * dummy-frame.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * environ.c: Ditto. * eval.c: Ditto. * event-top.h: Ditto. * exceptions.c: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-exp.y: Ditto. * f-lang.c: Ditto. * f-lang.h: Ditto. * f-typeprint.c: Ditto. * f-valprint.c: Ditto. * fbsd-nat.c: Ditto. * findvar.c: Ditto. * fork-child.c: Ditto. * frame.c: Ditto. * frame.h: Ditto. * frv-linux-tdep.c: Ditto. * frv-tdep.c: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_string.h: Ditto. * gdb_thread_db.h: Ditto. * gdb_wait.h: Ditto. * gdbarch.sh: Ditto. * gdbcore.h: Ditto. * gdbthread.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * gnu-nat.c: Ditto. * gnu-nat.h: Ditto. * gnu-v2-abi.c: Ditto. * gnu-v3-abi.c: Ditto. * go32-nat.c: Ditto. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate.
2011-01-07 19:36:19 +00:00
DW_OP_addr. 0xe0 is the encoding for DW_OP_GNU_push_tls_address.
The operand represents the offset at which the variable is within
the thread local storage. */
else if (data + 1 + addr_size < end
&& (data[0] == DW_OP_addr
|| (addr_size == 4 && data[0] == DW_OP_const4u)
|| (addr_size == 8 && data[0] == DW_OP_const8u))
&& data[1 + addr_size] == DW_OP_GNU_push_tls_address
&& piece_end_p (data + 2 + addr_size, end))
{
ULONGEST offset;
offset = extract_unsigned_integer (data + 1, addr_size,
gdbarch_byte_order (gdbarch));
fprintf_filtered (stream,
_("a thread-local variable at offset 0x%s "
"in the thread-local storage for `%s'"),
Code cleanup: Add objfile_name accessor gdb/ 2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com> Code cleanup: Add objfile_name accessor function. * ada-lang.c (is_known_support_routine): Use objfile_name. * auto-load.c (source_gdb_script_for_objfile) (auto_load_objfile_script): Likewise. * coffread.c (coff_symtab_read, read_one_sym): Likewise. * dbxread.c (dbx_symfile_read): Likewise. * dwarf2-frame.c (dwarf2_build_frame_info): Likewise. * dwarf2loc.c (locexpr_describe_location_piece): Likewise. * dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index) (dw2_symtab_iter_next, dw2_expand_symtabs_matching) (lookup_dwp_signatured_type, lookup_dwo_unit) (dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue) (fixup_go_packaging, process_imported_unit_die, dwarf2_physname) (read_import_statement, create_dwo_cu, open_and_init_dwp_file) (lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read) (dwarf2_record_block_ranges, read_common_block, read_typedef) (read_subrange_type, load_partial_dies, read_partial_die) (read_addr_index_1, read_str_index, dwarf_decode_lines_1) (die_containing_type, build_error_marker_type, lookup_die_type) (follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off) (dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type) (get_DW_AT_signature_type, write_psymtabs_to_index) (save_gdb_index_command): Likewise. * elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read): Likewise. * expprint.c (dump_subexp_body_standard): Likewise. * gdbtypes.c (type_name_no_tag_or_error): Likewise. * jit.c (jit_object_close_impl): Use the objfile field name renamed to original_name. * linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable obj_name, use objfile_name for it, use the variable. (try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile): Use objfile_name. * machoread.c (macho_symtab_read, macho_check_dsym) (macho_symfile_relocate): Likewise. * maint.c (maintenance_translate_address): Likewise. * minidebug.c (find_separate_debug_file_in_section): Likewise. * minsyms.c (install_minimal_symbols): Likewise. * objfiles.c (allocate_objfile): Use the objfile field name renamed to original_name. (filter_overlapping_sections): Use objfile_name. (objfile_name): New function. * objfiles.h (struct objfile): Rename field name to original_name. (objfile_name): New prototype. * printcmd.c (sym_info, address_info): Use objfile_name. * probe.c (parse_probes, collect_probes, compare_probes) (info_probes_for_ops): Likewise. * progspace.c (clone_program_space): Likewise. * psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab) (maintenance_info_psymtabs): Likewise. * python/py-auto-load.c (gdbpy_load_auto_script_for_objfile) (source_section_scripts): Likewise. * python/py-objfile.c (objfpy_get_filename): Likewise. * python/py-progspace.c (pspy_get_filename): Likewise. * solib-aix.c (solib_aix_get_toc_value): Likewise. * solib-som.c (match_main, som_solib_section_offsets): Likewise. * solib.c (solib_read_symbols): Likewise. * stabsread.c (scan_file_globals): Likewise. * stap-probe.c (handle_stap_probe): Likewise. * symfile.c (symbol_file_clear, separate_debug_file_exists) (find_separate_debug_file_by_debuglink): Likewise. (reread_symbols): Likewise. Use the objfile field name renamed to original_name. (allocate_symtab): Use objfile_name. * symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics) (dump_objfile, dump_msymbols, dump_symtab_1) (maintenance_print_msymbols, maintenance_print_objfiles) (maintenance_info_symtabs, maintenance_check_symtabs): Likewise. * target.c (target_translate_tls_address, target_info): Likewise. * xcoffread.c (xcoff_initial_scan): Make variable name const. Use objfile_name.
2013-09-24 13:57:38 +00:00
phex_nz (offset, addr_size), objfile_name (objfile));
data += 1 + addr_size + 1;
}
/* With -gsplit-dwarf a TLS variable can also look like this:
DW_AT_location : 3 byte block: fc 4 e0
(DW_OP_GNU_const_index: 4;
DW_OP_GNU_push_tls_address) */
else if (data + 3 <= end
&& data + 1 + (leb128_size = skip_leb128 (data + 1, end)) < end
&& data[0] == DW_OP_GNU_const_index
&& leb128_size > 0
&& data[1 + leb128_size] == DW_OP_GNU_push_tls_address
&& piece_end_p (data + 2 + leb128_size, end))
{
uint64_t offset;
data = safe_read_uleb128 (data + 1, end, &offset);
offset = dwarf2_read_addr_index (per_cu, offset);
fprintf_filtered (stream,
_("a thread-local variable at offset 0x%s "
"in the thread-local storage for `%s'"),
Code cleanup: Add objfile_name accessor gdb/ 2013-09-24 Jan Kratochvil <jan.kratochvil@redhat.com> Code cleanup: Add objfile_name accessor function. * ada-lang.c (is_known_support_routine): Use objfile_name. * auto-load.c (source_gdb_script_for_objfile) (auto_load_objfile_script): Likewise. * coffread.c (coff_symtab_read, read_one_sym): Likewise. * dbxread.c (dbx_symfile_read): Likewise. * dwarf2-frame.c (dwarf2_build_frame_info): Likewise. * dwarf2loc.c (locexpr_describe_location_piece): Likewise. * dwarf2read.c (dwarf2_get_dwz_file, dwarf2_read_index) (dw2_symtab_iter_next, dw2_expand_symtabs_matching) (lookup_dwp_signatured_type, lookup_dwo_unit) (dwarf2_build_psymtabs_hard, scan_partial_symbols, process_queue) (fixup_go_packaging, process_imported_unit_die, dwarf2_physname) (read_import_statement, create_dwo_cu, open_and_init_dwp_file) (lookup_dwo_cutu, read_call_site_scope, dwarf2_ranges_read) (dwarf2_record_block_ranges, read_common_block, read_typedef) (read_subrange_type, load_partial_dies, read_partial_die) (read_addr_index_1, read_str_index, dwarf_decode_lines_1) (die_containing_type, build_error_marker_type, lookup_die_type) (follow_die_ref_or_sig, follow_die_ref, dwarf2_fetch_die_loc_sect_off) (dwarf2_fetch_constant_bytes, follow_die_sig, get_signatured_type) (get_DW_AT_signature_type, write_psymtabs_to_index) (save_gdb_index_command): Likewise. * elfread.c (find_separate_debug_file_by_buildid, elf_symfile_read): Likewise. * expprint.c (dump_subexp_body_standard): Likewise. * gdbtypes.c (type_name_no_tag_or_error): Likewise. * jit.c (jit_object_close_impl): Use the objfile field name renamed to original_name. * linux-thread-db.c (try_thread_db_load_from_pdir_1): New variable obj_name, use objfile_name for it, use the variable. (try_thread_db_load_from_pdir, has_libpthread, thread_db_new_objfile): Use objfile_name. * machoread.c (macho_symtab_read, macho_check_dsym) (macho_symfile_relocate): Likewise. * maint.c (maintenance_translate_address): Likewise. * minidebug.c (find_separate_debug_file_in_section): Likewise. * minsyms.c (install_minimal_symbols): Likewise. * objfiles.c (allocate_objfile): Use the objfile field name renamed to original_name. (filter_overlapping_sections): Use objfile_name. (objfile_name): New function. * objfiles.h (struct objfile): Rename field name to original_name. (objfile_name): New prototype. * printcmd.c (sym_info, address_info): Use objfile_name. * probe.c (parse_probes, collect_probes, compare_probes) (info_probes_for_ops): Likewise. * progspace.c (clone_program_space): Likewise. * psymtab.c (require_partial_symbols, dump_psymtab, allocate_psymtab) (maintenance_info_psymtabs): Likewise. * python/py-auto-load.c (gdbpy_load_auto_script_for_objfile) (source_section_scripts): Likewise. * python/py-objfile.c (objfpy_get_filename): Likewise. * python/py-progspace.c (pspy_get_filename): Likewise. * solib-aix.c (solib_aix_get_toc_value): Likewise. * solib-som.c (match_main, som_solib_section_offsets): Likewise. * solib.c (solib_read_symbols): Likewise. * stabsread.c (scan_file_globals): Likewise. * stap-probe.c (handle_stap_probe): Likewise. * symfile.c (symbol_file_clear, separate_debug_file_exists) (find_separate_debug_file_by_debuglink): Likewise. (reread_symbols): Likewise. Use the objfile field name renamed to original_name. (allocate_symtab): Use objfile_name. * symmisc.c (print_symbol_bcache_statistics, print_objfile_statistics) (dump_objfile, dump_msymbols, dump_symtab_1) (maintenance_print_msymbols, maintenance_print_objfiles) (maintenance_info_symtabs, maintenance_check_symtabs): Likewise. * target.c (target_translate_tls_address, target_info): Likewise. * xcoffread.c (xcoff_initial_scan): Make variable name const. Use objfile_name.
2013-09-24 13:57:38 +00:00
phex_nz (offset, addr_size), objfile_name (objfile));
++data;
}
else if (data[0] >= DW_OP_lit0
&& data[0] <= DW_OP_lit31
&& data + 1 < end
&& data[1] == DW_OP_stack_value)
{
fprintf_filtered (stream, _("the constant %d"), data[0] - DW_OP_lit0);
data += 2;
}
return data;
}
/* Disassemble an expression, stopping at the end of a piece or at the
end of the expression. Returns a pointer to the next unread byte
in the input expression. If ALL is nonzero, then this function
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
will keep going until it reaches the end of the expression.
If there is an error during reading, e.g. we run off the end
of the buffer, an error is thrown. */
static const gdb_byte *
disassemble_dwarf_expression (struct ui_file *stream,
struct gdbarch *arch, unsigned int addr_size,
int offset_size, const gdb_byte *start,
const gdb_byte *data, const gdb_byte *end,
int indent, int all,
struct dwarf2_per_cu_data *per_cu)
{
while (data < end
&& (all
|| (data[0] != DW_OP_piece && data[0] != DW_OP_bit_piece)))
{
enum dwarf_location_atom op = *data++;
uint64_t ul;
int64_t l;
const char *name;
name = get_DW_OP_name (op);
if (!name)
error (_("Unrecognized DWARF opcode 0x%02x at %ld"),
op, (long) (data - 1 - start));
fprintf_filtered (stream, " %*ld: %s", indent + 4,
(long) (data - 1 - start), name);
switch (op)
{
case DW_OP_addr:
ul = extract_unsigned_integer (data, addr_size,
gdbarch_byte_order (arch));
data += addr_size;
fprintf_filtered (stream, " 0x%s", phex_nz (ul, addr_size));
break;
case DW_OP_const1u:
ul = extract_unsigned_integer (data, 1, gdbarch_byte_order (arch));
data += 1;
fprintf_filtered (stream, " %s", pulongest (ul));
break;
case DW_OP_const1s:
l = extract_signed_integer (data, 1, gdbarch_byte_order (arch));
data += 1;
fprintf_filtered (stream, " %s", plongest (l));
break;
case DW_OP_const2u:
ul = extract_unsigned_integer (data, 2, gdbarch_byte_order (arch));
data += 2;
fprintf_filtered (stream, " %s", pulongest (ul));
break;
case DW_OP_const2s:
l = extract_signed_integer (data, 2, gdbarch_byte_order (arch));
data += 2;
fprintf_filtered (stream, " %s", plongest (l));
break;
case DW_OP_const4u:
ul = extract_unsigned_integer (data, 4, gdbarch_byte_order (arch));
data += 4;
fprintf_filtered (stream, " %s", pulongest (ul));
break;
case DW_OP_const4s:
l = extract_signed_integer (data, 4, gdbarch_byte_order (arch));
data += 4;
fprintf_filtered (stream, " %s", plongest (l));
break;
case DW_OP_const8u:
ul = extract_unsigned_integer (data, 8, gdbarch_byte_order (arch));
data += 8;
fprintf_filtered (stream, " %s", pulongest (ul));
break;
case DW_OP_const8s:
l = extract_signed_integer (data, 8, gdbarch_byte_order (arch));
data += 8;
fprintf_filtered (stream, " %s", plongest (l));
break;
case DW_OP_constu:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
fprintf_filtered (stream, " %s", pulongest (ul));
break;
case DW_OP_consts:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_sleb128 (data, end, &l);
fprintf_filtered (stream, " %s", plongest (l));
break;
case DW_OP_reg0:
case DW_OP_reg1:
case DW_OP_reg2:
case DW_OP_reg3:
case DW_OP_reg4:
case DW_OP_reg5:
case DW_OP_reg6:
case DW_OP_reg7:
case DW_OP_reg8:
case DW_OP_reg9:
case DW_OP_reg10:
case DW_OP_reg11:
case DW_OP_reg12:
case DW_OP_reg13:
case DW_OP_reg14:
case DW_OP_reg15:
case DW_OP_reg16:
case DW_OP_reg17:
case DW_OP_reg18:
case DW_OP_reg19:
case DW_OP_reg20:
case DW_OP_reg21:
case DW_OP_reg22:
case DW_OP_reg23:
case DW_OP_reg24:
case DW_OP_reg25:
case DW_OP_reg26:
case DW_OP_reg27:
case DW_OP_reg28:
case DW_OP_reg29:
case DW_OP_reg30:
case DW_OP_reg31:
fprintf_filtered (stream, " [$%s]",
locexpr_regname (arch, op - DW_OP_reg0));
break;
case DW_OP_regx:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
fprintf_filtered (stream, " %s [$%s]", pulongest (ul),
locexpr_regname (arch, (int) ul));
break;
case DW_OP_implicit_value:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
data += ul;
fprintf_filtered (stream, " %s", pulongest (ul));
break;
case DW_OP_breg0:
case DW_OP_breg1:
case DW_OP_breg2:
case DW_OP_breg3:
case DW_OP_breg4:
case DW_OP_breg5:
case DW_OP_breg6:
case DW_OP_breg7:
case DW_OP_breg8:
case DW_OP_breg9:
case DW_OP_breg10:
case DW_OP_breg11:
case DW_OP_breg12:
case DW_OP_breg13:
case DW_OP_breg14:
case DW_OP_breg15:
case DW_OP_breg16:
case DW_OP_breg17:
case DW_OP_breg18:
case DW_OP_breg19:
case DW_OP_breg20:
case DW_OP_breg21:
case DW_OP_breg22:
case DW_OP_breg23:
case DW_OP_breg24:
case DW_OP_breg25:
case DW_OP_breg26:
case DW_OP_breg27:
case DW_OP_breg28:
case DW_OP_breg29:
case DW_OP_breg30:
case DW_OP_breg31:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_sleb128 (data, end, &l);
fprintf_filtered (stream, " %s [$%s]", plongest (l),
locexpr_regname (arch, op - DW_OP_breg0));
break;
case DW_OP_bregx:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
data = safe_read_sleb128 (data, end, &l);
fprintf_filtered (stream, " register %s [$%s] offset %s",
pulongest (ul),
locexpr_regname (arch, (int) ul),
plongest (l));
break;
case DW_OP_fbreg:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_sleb128 (data, end, &l);
fprintf_filtered (stream, " %s", plongest (l));
break;
case DW_OP_xderef_size:
case DW_OP_deref_size:
case DW_OP_pick:
fprintf_filtered (stream, " %d", *data);
++data;
break;
case DW_OP_plus_uconst:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
fprintf_filtered (stream, " %s", pulongest (ul));
break;
case DW_OP_skip:
l = extract_signed_integer (data, 2, gdbarch_byte_order (arch));
data += 2;
fprintf_filtered (stream, " to %ld",
(long) (data + l - start));
break;
case DW_OP_bra:
l = extract_signed_integer (data, 2, gdbarch_byte_order (arch));
data += 2;
fprintf_filtered (stream, " %ld",
(long) (data + l - start));
break;
case DW_OP_call2:
ul = extract_unsigned_integer (data, 2, gdbarch_byte_order (arch));
data += 2;
fprintf_filtered (stream, " offset %s", phex_nz (ul, 2));
break;
case DW_OP_call4:
ul = extract_unsigned_integer (data, 4, gdbarch_byte_order (arch));
data += 4;
fprintf_filtered (stream, " offset %s", phex_nz (ul, 4));
break;
case DW_OP_call_ref:
ul = extract_unsigned_integer (data, offset_size,
gdbarch_byte_order (arch));
data += offset_size;
fprintf_filtered (stream, " offset %s", phex_nz (ul, offset_size));
break;
case DW_OP_piece:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
fprintf_filtered (stream, " %s (bytes)", pulongest (ul));
break;
case DW_OP_bit_piece:
{
uint64_t offset;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
data = safe_read_uleb128 (data, end, &offset);
fprintf_filtered (stream, " size %s offset %s (bits)",
pulongest (ul), pulongest (offset));
}
break;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
case DW_OP_GNU_implicit_pointer:
{
ul = extract_unsigned_integer (data, offset_size,
gdbarch_byte_order (arch));
data += offset_size;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_sleb128 (data, end, &l);
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
fprintf_filtered (stream, " DIE %s offset %s",
phex_nz (ul, offset_size),
plongest (l));
}
break;
case DW_OP_GNU_deref_type:
{
int addr_size = *data++;
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
cu_offset offset;
struct type *type;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
offset.cu_off = ul;
type = dwarf2_get_die_type (offset, per_cu);
fprintf_filtered (stream, "<");
type_print (type, "", stream, -1);
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
fprintf_filtered (stream, " [0x%s]> %d", phex_nz (offset.cu_off, 0),
addr_size);
}
break;
case DW_OP_GNU_const_type:
{
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
cu_offset type_die;
struct type *type;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
type_die.cu_off = ul;
type = dwarf2_get_die_type (type_die, per_cu);
fprintf_filtered (stream, "<");
type_print (type, "", stream, -1);
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
fprintf_filtered (stream, " [0x%s]>", phex_nz (type_die.cu_off, 0));
}
break;
case DW_OP_GNU_regval_type:
{
uint64_t reg;
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
cu_offset type_die;
struct type *type;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &reg);
data = safe_read_uleb128 (data, end, &ul);
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
type_die.cu_off = ul;
type = dwarf2_get_die_type (type_die, per_cu);
fprintf_filtered (stream, "<");
type_print (type, "", stream, -1);
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
fprintf_filtered (stream, " [0x%s]> [$%s]",
phex_nz (type_die.cu_off, 0),
locexpr_regname (arch, reg));
}
break;
case DW_OP_GNU_convert:
case DW_OP_GNU_reinterpret:
{
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
cu_offset type_die;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
type_die.cu_off = ul;
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
if (type_die.cu_off == 0)
fprintf_filtered (stream, "<0>");
else
{
struct type *type;
type = dwarf2_get_die_type (type_die, per_cu);
fprintf_filtered (stream, "<");
type_print (type, "", stream, -1);
gdb/ Code cleanupp: Use cu_offset and sect_offset compile time type checking. * dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op) (ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2expr.h (cu_offset, sect_offset): New types. (struct dwarf_expr_context_funcs) <dwarf_call> (struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and sect_offset. (struct dwarf_expr_context) <len>: Improve the comment. (struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and sect_offset. * dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call) (dwarf_expr_get_base_type, needs_frame_dwarf_call) (dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise. * dwarf2loc.h: Include dwarf2expr.h. (dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset and sect_offset. * dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>: Improve the comment. (struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data) (struct signatured_type, struct line_header, struct partial_die_info) (struct die_info, find_partial_die, dwarf2_get_ref_die_offset) (lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit) (get_die_type_at_offset, create_cus_from_index) (create_signatured_type_table_from_index, dw2_get_file_names) (offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head) (read_and_check_comp_unit_head, read_and_check_type_unit_head) (create_debug_types_hash_table, process_psymtab_comp_unit) (load_partial_comp_unit, create_all_comp_units) (partial_die_parent_scope, partial_die_full_name, skip_one_die) (load_full_comp_unit, dwarf2_physname, read_import_statement) (inherit_abstract_dies, read_func_scope, read_call_site_scope) (dwarf2_add_member_fn, process_enumeration_scope, read_module_type) (read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs) (load_partial_dies, read_partial_die, find_partial_die_in_comp_unit) (find_partial_die, read_attribute_value, lookup_die_type) (dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset. (is_ref_attr): New function comment. (dwarf2_get_ref_die_offset): New function comment, new variable retval. Use cu_offset and sect_offset. (follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block) (dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset) (load_full_type_unit, read_signatured_type, per_cu_header_read_in) (dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type) (offset_and_type_hash, offset_and_type_eq, set_die_type) (get_die_type_at_offset, partial_die_hash, partial_die_eq) (write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and sect_offset.
2012-03-19 19:59:19 +00:00
fprintf_filtered (stream, " [0x%s]>", phex_nz (type_die.cu_off, 0));
}
}
break;
case DW_OP_GNU_entry_value:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data, end, &ul);
fputc_filtered ('\n', stream);
disassemble_dwarf_expression (stream, arch, addr_size, offset_size,
start, data, data + ul, indent + 2,
all, per_cu);
data += ul;
continue;
case DW_OP_GNU_parameter_ref:
ul = extract_unsigned_integer (data, 4, gdbarch_byte_order (arch));
data += 4;
fprintf_filtered (stream, " offset %s", phex_nz (ul, 4));
break;
case DW_OP_GNU_addr_index:
data = safe_read_uleb128 (data, end, &ul);
ul = dwarf2_read_addr_index (per_cu, ul);
fprintf_filtered (stream, " 0x%s", phex_nz (ul, addr_size));
break;
case DW_OP_GNU_const_index:
data = safe_read_uleb128 (data, end, &ul);
ul = dwarf2_read_addr_index (per_cu, ul);
fprintf_filtered (stream, " %s", pulongest (ul));
break;
}
fprintf_filtered (stream, "\n");
}
return data;
}
/* Describe a single location, which may in turn consist of multiple
pieces. */
static void
locexpr_describe_location_1 (struct symbol *symbol, CORE_ADDR addr,
struct ui_file *stream,
const gdb_byte *data, size_t size,
struct objfile *objfile, unsigned int addr_size,
int offset_size, struct dwarf2_per_cu_data *per_cu)
{
const gdb_byte *end = data + size;
int first_piece = 1, bad = 0;
while (data < end)
{
const gdb_byte *here = data;
int disassemble = 1;
if (first_piece)
first_piece = 0;
else
fprintf_filtered (stream, _(", and "));
if (!dwarf2_always_disassemble)
{
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 22:22:53 +00:00
data = locexpr_describe_location_piece (symbol, stream,
addr, objfile, per_cu,
data, end, addr_size);
/* If we printed anything, or if we have an empty piece,
then don't disassemble. */
if (data != here
|| data[0] == DW_OP_piece
|| data[0] == DW_OP_bit_piece)
disassemble = 0;
}
if (disassemble)
{
fprintf_filtered (stream, _("a complex DWARF expression:\n"));
data = disassemble_dwarf_expression (stream,
get_objfile_arch (objfile),
addr_size, offset_size, data,
data, end, 0,
dwarf2_always_disassemble,
per_cu);
}
if (data < end)
{
int empty = data == here;
if (disassemble)
fprintf_filtered (stream, " ");
if (data[0] == DW_OP_piece)
{
uint64_t bytes;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data + 1, end, &bytes);
if (empty)
fprintf_filtered (stream, _("an empty %s-byte piece"),
pulongest (bytes));
else
fprintf_filtered (stream, _(" [%s-byte piece]"),
pulongest (bytes));
}
else if (data[0] == DW_OP_bit_piece)
{
uint64_t bits, offset;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
data = safe_read_uleb128 (data + 1, end, &bits);
data = safe_read_uleb128 (data, end, &offset);
if (empty)
fprintf_filtered (stream,
_("an empty %s-bit piece"),
pulongest (bits));
else
fprintf_filtered (stream,
_(" [%s-bit piece, offset %s bits]"),
pulongest (bits), pulongest (offset));
}
else
{
bad = 1;
break;
}
}
}
if (bad || data > end)
error (_("Corrupted DWARF2 expression for \"%s\"."),
SYMBOL_PRINT_NAME (symbol));
}
/* Print a natural-language description of SYMBOL to STREAM. This
version is for a symbol with a single location. */
static void
locexpr_describe_location (struct symbol *symbol, CORE_ADDR addr,
struct ui_file *stream)
{
struct dwarf2_locexpr_baton *dlbaton = SYMBOL_LOCATION_BATON (symbol);
struct objfile *objfile = dwarf2_per_cu_objfile (dlbaton->per_cu);
unsigned int addr_size = dwarf2_per_cu_addr_size (dlbaton->per_cu);
int offset_size = dwarf2_per_cu_offset_size (dlbaton->per_cu);
2011-01-05 Michael Snyder <msnyder@vmware.com> * addrmap.c: Shorten lines of >= 80 columns. * arch-utils.c: Ditto. * arch-utils.h: Ditto. * ax-gdb.c: Ditto. * ax-general.c: Ditto. * bcache.c: Ditto. * blockframe.c: Ditto. * breakpoint.c: Ditto. * buildsym.c: Ditto. * c-lang.c: Ditto. * c-typeprint.c: Ditto. * charset.c: Ditto. * coffread.c: Ditto. * command.h: Ditto. * corelow.c: Ditto. * cp-abi.c: Ditto. * cp-namespace.c: Ditto. * cp-support.c: Ditto. * dbug-rom.c: Ditto. * dbxread.c: Ditto. * defs.h: Ditto. * dfp.c: Ditto. * dfp.h: Ditto. * dictionary.c: Ditto. * disasm.c: Ditto. * doublest.c: Ditto. * dwarf2-frame.c: Ditto. * dwarf2expr.c: Ditto. * dwarf2loc.c: Ditto. * dwarf2read.c: Ditto. * elfread.c: Ditto. * eval.c: Ditto. * event-loop.c: Ditto. * event-loop.h: Ditto. * exceptions.h: Ditto. * exec.c: Ditto. * expprint.c: Ditto. * expression.h: Ditto. * f-lang.c: Ditto. * f-valprint.c: Ditto. * findcmd.c: Ditto. * frame-base.c: Ditto. * frame-unwind.c: Ditto. * frame-unwind.h: Ditto. * frame.c: Ditto. * frame.h: Ditto. * gcore.c: Ditto. * gdb-stabs.h: Ditto. * gdb_assert.h: Ditto. * gdb_dirent.h: Ditto. * gdb_obstack.h: Ditto. * gdbcore.h: Ditto. * gdbtypes.c: Ditto. * gdbtypes.h: Ditto. * inf-ttrace.c: Ditto. * infcall.c: Ditto. * infcmd.c: Ditto. * inflow.c: Ditto. * infrun.c: Ditto. * inline-frame.h: Ditto. * language.c: Ditto. * language.h: Ditto. * libunwind-frame.c: Ditto. * libunwind-frame.h: Ditto. * linespec.c: Ditto. * linux-nat.c: Ditto. * linux-nat.h: Ditto. * linux-thread-db.c: Ditto. * machoread.c: Ditto. * macroexp.c: Ditto. * macrotab.c: Ditto. * main.c: Ditto. * maint.c: Ditto. * mdebugread.c: Ditto. * memattr.c: Ditto. * minsyms.c: Ditto. * monitor.c: Ditto. * monitor.h: Ditto. * objfiles.c: Ditto. * objfiles.h: Ditto. * osabi.c: Ditto. * p-typeprint.c: Ditto. * p-valprint.c: Ditto. * parse.c: Ditto. * printcmd.c: Ditto. * proc-events.c: Ditto. * procfs.c: Ditto. * progspace.c: Ditto. * progspace.h: Ditto. * psympriv.h: Ditto. * psymtab.c: Ditto. * record.c: Ditto. * regcache.c: Ditto. * regcache.h: Ditto. * remote-fileio.c: Ditto. * remote.c: Ditto. * ser-mingw.c: Ditto. * ser-tcp.c: Ditto. * ser-unix.c: Ditto. * serial.c: Ditto. * serial.h: Ditto. * solib-frv.c: Ditto. * solib-irix.c: Ditto. * solib-osf.c: Ditto. * solib-pa64.c: Ditto. * solib-som.c: Ditto. * solib-sunos.c: Ditto. * solib-svr4.c: Ditto. * solib-target.c: Ditto. * solib.c: Ditto. * somread.c: Ditto. * source.c: Ditto. * stabsread.c: Ditto. * stabsread.c: Ditto. * stack.c: Ditto. * stack.h: Ditto. * symfile-mem.c: Ditto. * symfile.c: Ditto. * symfile.h: Ditto. * symmisc.c: Ditto. * symtab.c: Ditto. * symtab.h: Ditto. * target-descriptions.c: Ditto. * target-memory.c: Ditto. * target.c: Ditto. * target.h: Ditto. * terminal.h: Ditto. * thread.c: Ditto. * top.c: Ditto. * tracepoint.c: Ditto. * tracepoint.h: Ditto. * ui-file.c: Ditto. * ui-file.h: Ditto. * ui-out.h: Ditto. * user-regs.c: Ditto. * user-regs.h: Ditto. * utils.c: Ditto. * valarith.c: Ditto. * valops.c: Ditto. * valprint.c: Ditto. * valprint.h: Ditto. * value.c: Ditto. * varobj.c: Ditto. * varobj.h: Ditto. * vec.h: Ditto. * xcoffread.c: Ditto. * xcoffsolib.c: Ditto. * xcoffsolib.h: Ditto. * xml-syscall.c: Ditto. * xml-tdesc.c: Ditto.
2011-01-05 22:22:53 +00:00
locexpr_describe_location_1 (symbol, addr, stream,
dlbaton->data, dlbaton->size,
objfile, addr_size, offset_size,
dlbaton->per_cu);
}
/* Describe the location of SYMBOL as an agent value in VALUE, generating
any necessary bytecode in AX. */
static void
locexpr_tracepoint_var_ref (struct symbol *symbol, struct gdbarch *gdbarch,
struct agent_expr *ax, struct axs_value *value)
{
struct dwarf2_locexpr_baton *dlbaton = SYMBOL_LOCATION_BATON (symbol);
unsigned int addr_size = dwarf2_per_cu_addr_size (dlbaton->per_cu);
if (dlbaton->size == 0)
value->optimized_out = 1;
else
dwarf2_compile_expr_to_ax (ax, value, gdbarch, addr_size,
dlbaton->data, dlbaton->data + dlbaton->size,
dlbaton->per_cu);
}
the "compile" command This final patch adds the new "compile" command and subcommands, and all the machinery needed to make it work. A shared library supplied by gcc is used for all communications with gcc. Types and most aspects of symbols are provided directly by gdb to the compiler using this library. gdb provides some information about the user's code using plain text. Macros are emitted this way, and DWARF location expressions (and bounds for VLA) are compiled to C code. This hybrid approach was taken because, on the one hand, it is better to provide global declarations and such on demand; but on the other hand, for local variables, translating DWARF location expressions to C was much simpler than exporting a full compiler API to gdb -- the same result, only easier to implement, understand, and debug. In the ordinary mode, the user's expression is wrapped in a dummy function. After compilation, gdb inserts the resulting object code into the inferior, then calls this function. Access to local variables is provided by noting which registers are used by location expressions, and passing a structure of register values into the function. Writes to registers are supported by copying out these values after the function returns. This approach was taken so that we could eventually implement other more interesting features based on this same infrastructure; for example, we're planning to investigate inferior-side breakpoint conditions. gdb/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Update. * symtab.h (struct symbol_computed_ops) <generate_c_location>: New field. * p-lang.c (pascal_language_defn): Update. * opencl-lang.c (opencl_language_defn): Update. * objc-lang.c (objc_language_defn): Update. * m2-lang.c (m2_language_defn): Update. * language.h (struct language_defn) <la_get_compile_instance, la_compute_program>: New fields. * language.c (unknown_language_defn, auto_language_defn) (local_language_defn): Update. * jv-lang.c (java_language_defn): Update. * go-lang.c (go_language_defn): Update. * f-lang.c (f_language_defn): Update. * dwarf2loc.h (dwarf2_compile_property_to_c): Declare. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): New functions. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Update. * defs.h (enum compile_i_scope_types): New. (enum command_control_type) <compile_control>: New constant. (struct command_line) <control_u>: New field. * d-lang.c (d_language_defn): Update. * compile/compile.c: New file. * compile/compile-c-support.c: New file. * compile/compile-c-symbols.c: New file. * compile/compile-c-types.c: New file. * compile/compile.h: New file. * compile/compile-internal.h: New file. * compile/compile-loc2c.c: New file. * compile/compile-object-load.c: New file. * compile/compile-object-load.h: New file. * compile/compile-object-run.c: New file. * compile/compile-object-run.h: New file. * cli/cli-script.c (multi_line_command_p, print_command_lines) (execute_control_command, process_next_line) (recurse_read_control_structure): Handle compile_control. * c-lang.h (c_get_compile_context, c_compute_program): Declare. * c-lang.c (c_language_defn, cplus_language_defn) (asm_language_defn, minimal_language_defn): Update. * ada-lang.c (ada_language_defn): Update. * Makefile.in (SUBDIR_GCC_COMPILE_OBS, SUBDIR_GCC_COMPILE_SRCS): New variables. (SFILES): Add SUBDIR_GCC_COMPILE_SRCS. (HFILES_NO_SRCDIR): Add compile.h. (COMMON_OBS): Add SUBDIR_GCC_COMPILE_OBS. (INIT_FILES): Add SUBDIR_GCC_COMPILE_SRCS. (compile.o, compile-c-types.o, compile-c-symbols.o) (compile-object-load.o, compile-object-run.o, compile-loc2c.o) (compile-c-support.o): New targets. gdb/doc/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.texinfo (Altering): Update. (Compiling and Injecting Code): New node. gdb/testsuite/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * configure.ac: Add gdb.compile/. * configure: Regenerate. * gdb.compile/Makefile.in: New file. * gdb.compile/compile-ops.exp: New file. * gdb.compile/compile-ops.c: New file. * gdb.compile/compile-tls.c: New file. * gdb.compile/compile-tls.exp: New file. * gdb.compile/compile-constvar.S: New file. * gdb.compile/compile-constvar.c: New file. * gdb.compile/compile-mod.c: New file. * gdb.compile/compile-nodebug.c: New file. * gdb.compile/compile-setjmp-mod.c: New file. * gdb.compile/compile-setjmp.c: New file. * gdb.compile/compile-setjmp.exp: New file. * gdb.compile/compile-shlib.c: New file. * gdb.compile/compile.c: New file. * gdb.compile/compile.exp: New file. * lib/gdb.exp (skip_compile_feature_tests): New proc.
2014-05-14 20:35:45 +00:00
/* symbol_computed_ops 'generate_c_location' method. */
static void
locexpr_generate_c_location (struct symbol *sym, struct ui_file *stream,
struct gdbarch *gdbarch,
unsigned char *registers_used,
CORE_ADDR pc, const char *result_name)
{
struct dwarf2_locexpr_baton *dlbaton = SYMBOL_LOCATION_BATON (sym);
unsigned int addr_size = dwarf2_per_cu_addr_size (dlbaton->per_cu);
if (dlbaton->size == 0)
error (_("symbol \"%s\" is optimized out"), SYMBOL_NATURAL_NAME (sym));
compile_dwarf_expr_to_c (stream, result_name,
sym, pc, gdbarch, registers_used, addr_size,
dlbaton->data, dlbaton->data + dlbaton->size,
dlbaton->per_cu);
}
/* The set of location functions used with the DWARF-2 expression
evaluator. */
* symtab.h: Rename SYMBOL_OPS to SYMBOL_COMPUTED_OPS. * ax-gdb.c (gen_var_ref): Likewise. * findvar.c (read_var_value, symbol_read_needs_frame): Likewise. * printcmd.c (address_info): Likewise. * dwarf2loc.c (dwarf_expr_frame_base): Likewise. * dwarf2read.c (dwarf2_symbol_mark_computed): Likewise. * symtab.h: Rename struct symbol_ops to struct symbol_computed_ops. * dwarf2loc.h: Likewise. * dwarf2loc.c (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Likewise. * symtab.h: (struct symbol_register_ops): New struct definition. (struct symbol): Make "ops" member a union of symbol_computed_ops and symbol_register_ops callback pointers. (SYMBOL_REGISTER_OPS): New macro. * tracepoint.c: Include "objfiles.h". (scope_info, collect_symbol): Use SYMBOL_REGISTER_OPS register_number callback to retrieve register numbers. * ax-gdb.c (gen_var_ref): Likewise. * findvar.c (read_var_value): Likewise. * printcmd.c (address_info): Likewise. * coffread.c (coff_reg_to_regnum): New function. (coff_register_funcs): New static variable. (process_coff_symbol): Do not call gdbarch_sdb_reg_to_regnum. Install SYMBOL_REGISTER_OPS callbacks. * mdebugread.c (mdebug_reg_to_regnum): New function. (mdebug_register_funcs): New static variable. (parse_symbol): Do not call gdbarch_ecoff_reg_to_regnum. Install SYMBOL_REGISTER_OPS callbacks. * stabsread.c (stab_reg_to_regnum): New function. (stab_register_funcs): New static variable. (define_symbol): Do not call gdbarch_stab_reg_to_regnum. Install SYMBOL_REGISTER_OPS callbacks.
2009-06-04 12:28:39 +00:00
const struct symbol_computed_ops dwarf2_locexpr_funcs = {
locexpr_read_variable,
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
locexpr_read_variable_at_entry,
locexpr_read_needs_frame,
locexpr_describe_location,
2013-03-20 Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> PR symtab/8421: * coffread.c (coff_register_index): New global. (process_coff_symbol, coff_read_enum_type): Set SYMBOL_ACLASS_INDEX. (_initialize_coffread): Initialize new global. * dwarf2loc.c (locexpr_find_frame_base_location) (dwarf2_block_frame_base_locexpr_funcs) (loclist_find_frame_base_location) (dwarf2_block_frame_base_loclist_funcs): New. (dwarf_expr_frame_base_1): Call SYMBOL_BLOCK_OPS, remove internal_error. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Add location_has_loclist. * dwarf2loc.h (dwarf2_block_frame_base_locexpr_funcs) (dwarf2_block_frame_base_loclist_funcs): New. * dwarf2read.c (dwarf2_locexpr_index, dwarf2_loclist_index) (dwarf2_locexpr_block_index, dwarf2_loclist_block_index): New globals. (read_func_scope): Update. (fixup_go_packaging, mark_common_block_symbol_computed) (var_decode_location, new_symbol_full, dwarf2_const_value): Set SYMBOL_ACLASS_INDEX. (dwarf2_symbol_mark_computed): Likewise. Add 'is_block' argument. (_initialize_dwarf2_read): Initialize new globals. * jit.c (finalize_symtab): Set SYMBOL_ACLASS_INDEX. * jv-lang.c (add_class_symbol): Set SYMBOL_ACLASS_INDEX. * mdebugread.c (mdebug_register_index, mdebug_regparm_index): New globals. (parse_symbol, psymtab_to_symtab_1): Set SYMBOL_ACLASS_INDEX. (_initialize_mdebugread): Initialize new globals. * psympriv.h (struct partial_symbol) <aclass>: Update comment. * stabsread.c (patch_block_stabs): Set SYMBOL_ACLASS_INDEX. (stab_register_index, stab_regparm_index): New globals. (define_symbol, read_enum_type, common_block_end): Set SYMBOL_ACLASS_INDEX. (_initialize_stabsread): Initialize new globals. * symtab.c (next_aclass_value, symbol_impl, symbol_impls): New globals. (MAX_SYMBOL_IMPLS): New define. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl) (initialize_ordinary_address_classes): New functions. (_initialize_symtab): Call initialize_ordinary_address_classes. * symtab.h (enum address_class) <LOC_FINAL_VALUE>: New constant. (struct symbol_impl): New. (SYMBOL_ACLASS_BITS): New define. (struct symbol) <aclass, ops>: Remove fields. <aclass_index>: New field. (symbol_impls): Declare. (SYMBOL_CLASS, SYMBOL_COMPUTED_OPS, SYMBOL_REGISTER_OPS): Redefine. (SYMBOL_IMPL, SYMBOL_ACLASS_INDEX): New defines. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl): Declare. (struct symbol_computed_ops): Add location_has_loclist. (struct symbol_block_ops): New. (SYMBOL_BLOCK_OPS): New. * xcoffread.c (process_xcoff_symbol): Set SYMBOL_ACLASS_INDEX.
2013-03-20 18:33:05 +00:00
0, /* location_has_loclist */
the "compile" command This final patch adds the new "compile" command and subcommands, and all the machinery needed to make it work. A shared library supplied by gcc is used for all communications with gcc. Types and most aspects of symbols are provided directly by gdb to the compiler using this library. gdb provides some information about the user's code using plain text. Macros are emitted this way, and DWARF location expressions (and bounds for VLA) are compiled to C code. This hybrid approach was taken because, on the one hand, it is better to provide global declarations and such on demand; but on the other hand, for local variables, translating DWARF location expressions to C was much simpler than exporting a full compiler API to gdb -- the same result, only easier to implement, understand, and debug. In the ordinary mode, the user's expression is wrapped in a dummy function. After compilation, gdb inserts the resulting object code into the inferior, then calls this function. Access to local variables is provided by noting which registers are used by location expressions, and passing a structure of register values into the function. Writes to registers are supported by copying out these values after the function returns. This approach was taken so that we could eventually implement other more interesting features based on this same infrastructure; for example, we're planning to investigate inferior-side breakpoint conditions. gdb/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Update. * symtab.h (struct symbol_computed_ops) <generate_c_location>: New field. * p-lang.c (pascal_language_defn): Update. * opencl-lang.c (opencl_language_defn): Update. * objc-lang.c (objc_language_defn): Update. * m2-lang.c (m2_language_defn): Update. * language.h (struct language_defn) <la_get_compile_instance, la_compute_program>: New fields. * language.c (unknown_language_defn, auto_language_defn) (local_language_defn): Update. * jv-lang.c (java_language_defn): Update. * go-lang.c (go_language_defn): Update. * f-lang.c (f_language_defn): Update. * dwarf2loc.h (dwarf2_compile_property_to_c): Declare. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): New functions. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Update. * defs.h (enum compile_i_scope_types): New. (enum command_control_type) <compile_control>: New constant. (struct command_line) <control_u>: New field. * d-lang.c (d_language_defn): Update. * compile/compile.c: New file. * compile/compile-c-support.c: New file. * compile/compile-c-symbols.c: New file. * compile/compile-c-types.c: New file. * compile/compile.h: New file. * compile/compile-internal.h: New file. * compile/compile-loc2c.c: New file. * compile/compile-object-load.c: New file. * compile/compile-object-load.h: New file. * compile/compile-object-run.c: New file. * compile/compile-object-run.h: New file. * cli/cli-script.c (multi_line_command_p, print_command_lines) (execute_control_command, process_next_line) (recurse_read_control_structure): Handle compile_control. * c-lang.h (c_get_compile_context, c_compute_program): Declare. * c-lang.c (c_language_defn, cplus_language_defn) (asm_language_defn, minimal_language_defn): Update. * ada-lang.c (ada_language_defn): Update. * Makefile.in (SUBDIR_GCC_COMPILE_OBS, SUBDIR_GCC_COMPILE_SRCS): New variables. (SFILES): Add SUBDIR_GCC_COMPILE_SRCS. (HFILES_NO_SRCDIR): Add compile.h. (COMMON_OBS): Add SUBDIR_GCC_COMPILE_OBS. (INIT_FILES): Add SUBDIR_GCC_COMPILE_SRCS. (compile.o, compile-c-types.o, compile-c-symbols.o) (compile-object-load.o, compile-object-run.o, compile-loc2c.o) (compile-c-support.o): New targets. gdb/doc/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.texinfo (Altering): Update. (Compiling and Injecting Code): New node. gdb/testsuite/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * configure.ac: Add gdb.compile/. * configure: Regenerate. * gdb.compile/Makefile.in: New file. * gdb.compile/compile-ops.exp: New file. * gdb.compile/compile-ops.c: New file. * gdb.compile/compile-tls.c: New file. * gdb.compile/compile-tls.exp: New file. * gdb.compile/compile-constvar.S: New file. * gdb.compile/compile-constvar.c: New file. * gdb.compile/compile-mod.c: New file. * gdb.compile/compile-nodebug.c: New file. * gdb.compile/compile-setjmp-mod.c: New file. * gdb.compile/compile-setjmp.c: New file. * gdb.compile/compile-setjmp.exp: New file. * gdb.compile/compile-shlib.c: New file. * gdb.compile/compile.c: New file. * gdb.compile/compile.exp: New file. * lib/gdb.exp (skip_compile_feature_tests): New proc.
2014-05-14 20:35:45 +00:00
locexpr_tracepoint_var_ref,
locexpr_generate_c_location
};
/* Wrapper functions for location lists. These generally find
the appropriate location expression and call something above. */
/* Return the value of SYMBOL in FRAME using the DWARF-2 expression
evaluator to calculate the location. */
static struct value *
loclist_read_variable (struct symbol *symbol, struct frame_info *frame)
{
struct dwarf2_loclist_baton *dlbaton = SYMBOL_LOCATION_BATON (symbol);
struct value *val;
const gdb_byte *data;
size_t size;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
CORE_ADDR pc = frame ? get_frame_address_in_block (frame) : 0;
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
data = dwarf2_find_location_expression (dlbaton, &size, pc);
val = dwarf2_evaluate_loc_desc (SYMBOL_TYPE (symbol), frame, data, size,
dlbaton->per_cu);
return val;
}
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
/* Read variable SYMBOL like loclist_read_variable at (callee) FRAME's function
entry. SYMBOL should be a function parameter, otherwise NO_ENTRY_VALUE_ERROR
will be thrown.
Function always returns non-NULL value, it may be marked optimized out if
inferior frame information is not available. It throws NO_ENTRY_VALUE_ERROR
if it cannot resolve the parameter for any reason. */
static struct value *
loclist_read_variable_at_entry (struct symbol *symbol, struct frame_info *frame)
{
struct dwarf2_loclist_baton *dlbaton = SYMBOL_LOCATION_BATON (symbol);
const gdb_byte *data;
size_t size;
CORE_ADDR pc;
if (frame == NULL || !get_frame_func_if_available (frame, &pc))
return allocate_optimized_out_value (SYMBOL_TYPE (symbol));
data = dwarf2_find_location_expression (dlbaton, &size, pc);
if (data == NULL)
return allocate_optimized_out_value (SYMBOL_TYPE (symbol));
return value_of_dwarf_block_entry (SYMBOL_TYPE (symbol), frame, data, size);
}
/* Return non-zero iff we need a frame to evaluate SYMBOL. */
static int
loclist_read_needs_frame (struct symbol *symbol)
{
/* If there's a location list, then assume we need to have a frame
to choose the appropriate location expression. With tracking of
global variables this is not necessarily true, but such tracking
is disabled in GCC at the moment until we figure out how to
represent it. */
return 1;
}
/* Print a natural-language description of SYMBOL to STREAM. This
version applies when there is a list of different locations, each
with a specified address range. */
static void
loclist_describe_location (struct symbol *symbol, CORE_ADDR addr,
struct ui_file *stream)
{
struct dwarf2_loclist_baton *dlbaton = SYMBOL_LOCATION_BATON (symbol);
const gdb_byte *loc_ptr, *buf_end;
struct objfile *objfile = dwarf2_per_cu_objfile (dlbaton->per_cu);
struct gdbarch *gdbarch = get_objfile_arch (objfile);
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
unsigned int addr_size = dwarf2_per_cu_addr_size (dlbaton->per_cu);
int offset_size = dwarf2_per_cu_offset_size (dlbaton->per_cu);
int signed_addr_p = bfd_get_sign_extend_vma (objfile->obfd);
/* Adjust base_address for relocatable objects. */
CORE_ADDR base_offset = dwarf2_per_cu_text_offset (dlbaton->per_cu);
CORE_ADDR base_address = dlbaton->base_address + base_offset;
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
int done = 0;
loc_ptr = dlbaton->data;
buf_end = dlbaton->data + dlbaton->size;
fprintf_filtered (stream, _("multi-location:\n"));
/* Iterate through locations until we run out. */
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
while (!done)
{
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
CORE_ADDR low = 0, high = 0; /* init for gcc -Wall */
int length;
enum debug_loc_kind kind;
const gdb_byte *new_ptr = NULL; /* init for gcc -Wall */
if (dlbaton->from_dwo)
kind = decode_debug_loc_dwo_addresses (dlbaton->per_cu,
loc_ptr, buf_end, &new_ptr,
&low, &high, byte_order);
else
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
kind = decode_debug_loc_addresses (loc_ptr, buf_end, &new_ptr,
&low, &high,
byte_order, addr_size,
signed_addr_p);
loc_ptr = new_ptr;
switch (kind)
{
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
case DEBUG_LOC_END_OF_LIST:
done = 1;
continue;
case DEBUG_LOC_BASE_ADDRESS:
base_address = high + base_offset;
fprintf_filtered (stream, _(" Base address %s"),
paddress (gdbarch, base_address));
continue;
case DEBUG_LOC_START_END:
case DEBUG_LOC_START_LENGTH:
* dwarf2-frame.c (struct dwarf2_cie): Make initial_instructions, end "const gdb_byte *". (struct dwarf2_fde): Make instructions, end "const gdb_byte *". (execute_cfa_program): Update to match API of leb128 functions. (read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter "const gdb_byte *". (read_unsigned_leb128, read_signed_leb128): Delete. (read_initial_length): Change type of buf argument to "const gdb_byte *". (read_encoded_value): Update to match API of leb128 functions. (decode_frame_entry): Change result to "const gdb_byte *", and similarly for "start" parameter. (decode_frame_entry_1): Ditto. Use new leb128 reader functions. (dwarf2_build_frame_info): Change local frame_ptr to "const gdb_byte *". * dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces read_uleb128, read_sleb128. All callers updated. (safe_skip_leb128): New function. (dwarf_block_to_dwarf_reg): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128. (dwarf_block_to_dwarf_reg_deref): Update to match API of leb128 functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of read_uleb128, read_sleb128. (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto. (execute_stack_op): Update to match API of leb128 functions. * dwarf2expr.h: #include "leb128.h". (read_uleb128, read_sleb128): Delete. (gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions. (safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare. * dwarf2loc.c (debug_loc_kind): New enum. (decode_debug_loc_addresses): New function. (decode_debug_loc_dwo_addresses): New function. (dwarf2_find_location_expression): Rewrite. (dwarf2_compile_expr_to_ax): Update to match API of leb128 functions. (locexpr_describe_location_piece): Ditto. (disassemble_dwarf_expression): Ditto. (locexpr_describe_location_1): Ditto. (loclist_describe_location): Rewrite. * dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo". * dwarf2read.c (die_reader_specs): New member "buffer_end". (dwarf2_section_buffer_overflow_complaint): Renamed from dwarf2_macros_too_long_complaint. All callers updated. (skip_leb128): Delete. (init_cu_die_reader): Initialize reader->buffer_end. (skip_one_die): Replace call to skip_leb128 with safe_skip_leb128. (skip_form_bytes): New arg buffer_end. All callers updated. Replace call to skip_leb128 with gdb_skip_leb128. (skip_unknown_opcode): New arg mac_end. All callers updated. (fill_in_loclist_baton): Initialize baton->from_dwo.
2012-05-22 18:45:22 +00:00
break;
case DEBUG_LOC_BUFFER_OVERFLOW:
case DEBUG_LOC_INVALID_ENTRY:
error (_("Corrupted DWARF expression for symbol \"%s\"."),
SYMBOL_PRINT_NAME (symbol));
default:
gdb_assert_not_reached ("bad debug_loc_kind");
}
/* Otherwise, a location expression entry. */
low += base_address;
high += base_address;
MIPS: Keep the ISA bit in compressed code addresses 1. Background information The MIPS architecture, as originally designed and implemented in mid-1980s has a uniform instruction word size that is 4 bytes, naturally aligned. As such all MIPS instructions are located at addresses that have their bits #1 and #0 set to zeroes, and any attempt to execute an instruction from an address that has any of the two bits set to one causes an address error exception. This may for example happen when a jump-register instruction is executed whose register value used as the jump target has any of these bits set. Then in mid 1990s LSI sought a way to improve code density for their TinyRISC family of MIPS cores and invented an alternatively encoded instruction set in a joint effort with MIPS Technologies (then a subsidiary of SGI). The new instruction set has been named the MIPS16 ASE (Application-Specific Extension) and uses a variable instruction word size, which is 2 bytes (as the name of the ASE suggests) for most, but there are a couple of exceptions that take 4 bytes, and then most of the 2-byte instructions can be treated with a 2-byte extension prefix to expand the range of the immediate operands used. As a result instructions are no longer 4-byte aligned, instead they are aligned to a multiple of 2. That left the bit #0 still unused for code references, be it for the standard MIPS (i.e. as originally invented) or for the MIPS16 instruction set, and based on that observation a clever trick was invented that on one hand allowed the processor to be seamlessly switched between the two instruction sets at any time at the run time while on the other avoided the introduction of any special control register to do that. So it is the bit #0 of the instruction address that was chosen as the selector and named the ISA bit. Any instruction executed at an even address is interpreted as a standard MIPS instruction (the address still has to have its bit #1 clear), any instruction executed at an odd address is interpreted as a MIPS16 instruction. To switch between modes ordinary jump instructions are used, such as used for function calls and returns, specifically the bit #0 of the source register used in jump-register instructions selects the execution (ISA) mode for the following piece of code to be interpreted in. Additionally new jump-immediate instructions were added that flipped the ISA bit to select the opposite mode upon execution. They were considered necessary to avoid the need to make register jumps in all cases as the original jump-immediate instructions provided no way to change the bit #0 at all. This was all important for cases where standard MIPS and MIPS16 code had to be mixed, either for compatibility with the existing binary code base or to access resources not reachable from MIPS16 code (the MIPS16 instruction set only provides access to general-purpose registers, and not for example floating-point unit registers or privileged coprocessor 0 registers) -- pieces of code in the opposite mode can be executed as ordinary subroutine calls. A similar approach has been more recently adopted for the MIPS16 replacement instruction set defined as the so called microMIPS ASE. This is another instruction set encoding introduced to the MIPS architecture. Just like the MIPS16 ASE, the microMIPS instruction set uses a variable-length encoding, where each instruction takes a multiple of 2 bytes. The ISA bit has been reused and for microMIPS-capable processors selects between the standard MIPS and the microMIPS mode instead. 2. Statement of the problem To put it shortly, MIPS16 and microMIPS code pointers used by GDB are different to these observed at the run time. This results in the same expressions being evaluated producing different results in GDB and in the program being debugged. Obviously it's the results obtained at the run time that are correct (they define how the program behaves) and therefore by definition the results obtained in GDB are incorrect. A bit longer description will record that obviously at the run time the ISA bit has to be set correctly (refer to background information above if unsure why so) or the program will not run as expected. This is recorded in all the executable file structures used at the run time: the dynamic symbol table (but not always the static one!), the GOT, and obviously in all the addresses embedded in code or data of the program itself, calculated by applying the appropriate relocations at the static link time. While a program is being processed by GDB, the ISA bit is stripped off from any code addresses, presumably to make them the same as the respective raw memory byte address used by the processor to access the instruction in the instruction fetch access cycle. This stripping is actually performed outside GDB proper, in BFD, specifically _bfd_mips_elf_symbol_processing (elfxx-mips.c, see the piece of code at the very bottom of that function, starting with an: "If this is an odd-valued function symbol, assume it's a MIPS16 or microMIPS one." comment). This function is also responsible for symbol table dumps made by `objdump' too, so you'll never see the ISA bit reported there by that tool, you need to use `readelf'. This is however unlike what is ever done at the run time, the ISA bit once present is never stripped off, for example a cast like this: (short *) main will not strip the ISA bit off and if the resulting pointer is intended to be used to access instructions as data, for example for software instruction decoding (like for fault recovery or emulation in a signal handler) or for self-modifying code then the bit still has to be stripped off by an explicit AND operation. This is probably best illustrated with a simple real program example. Let's consider the following simple program: $ cat foobar.c int __attribute__ ((mips16)) foo (void) { return 1; } int __attribute__ ((mips16)) bar (void) { return 2; } int __attribute__ ((nomips16)) foo32 (void) { return 3; } int (*foo32p) (void) = foo32; int (*foop) (void) = foo; int fooi = (int) foo; int main (void) { return foop (); } $ This is plain C with no odd tricks, except from the instruction mode attributes. They are not necessary to trigger this problem, I just put them here so that the program can be contained in a single source file and to make it obvious which function is MIPS16 code and which is not. Let's try it with Linux, so that everyone can repeat this experiment: $ mips-linux-gnu-gcc -mips16 -g -O2 -o foobar foobar.c $ Let's have a look at some interesting symbols: $ mips-linux-gnu-readelf -s foobar | egrep 'table|foo|bar' Symbol table '.dynsym' contains 7 entries: Symbol table '.symtab' contains 95 entries: 55: 00000000 0 FILE LOCAL DEFAULT ABS foobar.c 66: 0040068c 4 FUNC GLOBAL DEFAULT [MIPS16] 12 bar 68: 00410848 4 OBJECT GLOBAL DEFAULT 21 foo32p 70: 00410844 4 OBJECT GLOBAL DEFAULT 21 foop 78: 00400684 8 FUNC GLOBAL DEFAULT 12 foo32 80: 00400680 4 FUNC GLOBAL DEFAULT [MIPS16] 12 foo 88: 00410840 4 OBJECT GLOBAL DEFAULT 21 fooi $ Hmm, no sight of the ISA bit, but notice how foo and bar (but not foo32!) have been marked as MIPS16 functions (ELF symbol structure's `st_other' field is used for that). So let's try to run and poke at this program with GDB. I'll be using a native system for simplicity (I'll be using ellipses here and there to remove unrelated clutter): $ ./foobar $ echo $? 1 $ So far, so good. $ gdb ./foobar [...] (gdb) break main Breakpoint 1 at 0x400490: file foobar.c, line 23. (gdb) run Starting program: .../foobar Breakpoint 1, main () at foobar.c:23 23 return foop (); (gdb) Yay, it worked! OK, so let's poke at it: (gdb) print main $1 = {int (void)} 0x400490 <main> (gdb) print foo32 $2 = {int (void)} 0x400684 <foo32> (gdb) print foo32p $3 = (int (*)(void)) 0x400684 <foo32> (gdb) print bar $4 = {int (void)} 0x40068c <bar> (gdb) print foo $5 = {int (void)} 0x400680 <foo> (gdb) print foop $6 = (int (*)(void)) 0x400681 <foo> (gdb) A-ha! Here's the difference and finally the ISA bit! (gdb) print /x fooi $7 = 0x400681 (gdb) p/x $pc p/x $pc $8 = 0x400491 (gdb) And here as well... (gdb) advance foo foo () at foobar.c:4 4 } (gdb) disassemble Dump of assembler code for function foo: 0x00400680 <+0>: jr ra 0x00400682 <+2>: li v0,1 End of assembler dump. (gdb) finish Run till exit from #0 foo () at foobar.c:4 main () at foobar.c:24 24 } Value returned is $9 = 1 (gdb) continue Continuing. [Inferior 1 (process 14103) exited with code 01] (gdb) So let's be a bit inquisitive... (gdb) run Starting program: .../foobar Breakpoint 1, main () at foobar.c:23 23 return foop (); (gdb) Actually we do not like to run foo here at all. Let's run bar instead! (gdb) set foop = bar (gdb) print foop $10 = (int (*)(void)) 0x40068c <bar> (gdb) Hmm, no ISA bit. Is it going to work? (gdb) advance bar bar () at foobar.c:9 9 } (gdb) p/x $pc $11 = 0x40068c (gdb) disassemble Dump of assembler code for function bar: => 0x0040068c <+0>: jr ra 0x0040068e <+2>: li v0,2 End of assembler dump. (gdb) finish Run till exit from #0 bar () at foobar.c:9 Program received signal SIGILL, Illegal instruction. bar () at foobar.c:9 9 } (gdb) Oops! (gdb) p/x $pc $12 = 0x40068c (gdb) We're still there! (gdb) continue Continuing. Program terminated with signal SIGILL, Illegal instruction. The program no longer exists. (gdb) So let's try something else: (gdb) run Starting program: .../foobar Breakpoint 1, main () at foobar.c:23 23 return foop (); (gdb) set foop = foo (gdb) advance foo foo () at foobar.c:4 4 } (gdb) disassemble Dump of assembler code for function foo: => 0x00400680 <+0>: jr ra 0x00400682 <+2>: li v0,1 End of assembler dump. (gdb) finish Run till exit from #0 foo () at foobar.c:4 Program received signal SIGILL, Illegal instruction. foo () at foobar.c:4 4 } (gdb) continue Continuing. Program terminated with signal SIGILL, Illegal instruction. The program no longer exists. (gdb) The same problem! (gdb) run Starting program: /net/build2-lucid-cs/scratch/macro/mips-linux-fsf-gcc/isa-bit/foobar Breakpoint 1, main () at foobar.c:23 23 return foop (); (gdb) set foop = foo32 (gdb) advance foo32 foo32 () at foobar.c:14 14 } (gdb) disassemble Dump of assembler code for function foo32: => 0x00400684 <+0>: jr ra 0x00400688 <+4>: li v0,3 End of assembler dump. (gdb) finish Run till exit from #0 foo32 () at foobar.c:14 main () at foobar.c:24 24 } Value returned is $14 = 3 (gdb) continue Continuing. [Inferior 1 (process 14113) exited with code 03] (gdb) That did work though, so it's the ISA bit only! (gdb) quit Enough! That's the tip of the iceberg only though. So let's rebuild the executable with some dynamic symbols: $ mips-linux-gnu-gcc -mips16 -Wl,--export-dynamic -g -O2 -o foobar-dyn foobar.c $ mips-linux-gnu-readelf -s foobar-dyn | egrep 'table|foo|bar' Symbol table '.dynsym' contains 32 entries: 6: 004009cd 4 FUNC GLOBAL DEFAULT 12 bar 8: 00410b88 4 OBJECT GLOBAL DEFAULT 21 foo32p 9: 00410b84 4 OBJECT GLOBAL DEFAULT 21 foop 15: 004009c4 8 FUNC GLOBAL DEFAULT 12 foo32 17: 004009c1 4 FUNC GLOBAL DEFAULT 12 foo 25: 00410b80 4 OBJECT GLOBAL DEFAULT 21 fooi Symbol table '.symtab' contains 95 entries: 55: 00000000 0 FILE LOCAL DEFAULT ABS foobar.c 69: 004009cd 4 FUNC GLOBAL DEFAULT 12 bar 71: 00410b88 4 OBJECT GLOBAL DEFAULT 21 foo32p 72: 00410b84 4 OBJECT GLOBAL DEFAULT 21 foop 79: 004009c4 8 FUNC GLOBAL DEFAULT 12 foo32 81: 004009c1 4 FUNC GLOBAL DEFAULT 12 foo 89: 00410b80 4 OBJECT GLOBAL DEFAULT 21 fooi $ OK, now the ISA bit is there for a change, but the MIPS16 `st_other' attribute gone, hmm... What does `objdump' do then: $ mips-linux-gnu-objdump -Tt foobar-dyn | egrep 'SYMBOL|foo|bar' foobar-dyn: file format elf32-tradbigmips SYMBOL TABLE: 00000000 l df *ABS* 00000000 foobar.c 004009cc g F .text 00000004 0xf0 bar 00410b88 g O .data 00000004 foo32p 00410b84 g O .data 00000004 foop 004009c4 g F .text 00000008 foo32 004009c0 g F .text 00000004 0xf0 foo 00410b80 g O .data 00000004 fooi DYNAMIC SYMBOL TABLE: 004009cc g DF .text 00000004 Base 0xf0 bar 00410b88 g DO .data 00000004 Base foo32p 00410b84 g DO .data 00000004 Base foop 004009c4 g DF .text 00000008 Base foo32 004009c0 g DF .text 00000004 Base 0xf0 foo 00410b80 g DO .data 00000004 Base fooi $ Hmm, the attribute (0xf0, printed raw) is back, and the ISA bit gone again. Let's have a look at some DWARF-2 records GDB uses (I'll be stripping off a lot here for brevity) -- debug info: $ mips-linux-gnu-readelf -wi foobar Contents of the .debug_info section: [...] Compilation Unit @ offset 0x88: Length: 0xbb (32-bit) Version: 4 Abbrev Offset: 62 Pointer Size: 4 <0><93>: Abbrev Number: 1 (DW_TAG_compile_unit) <94> DW_AT_producer : (indirect string, offset: 0x19e): GNU C 4.8.0 20120513 (experimental) -meb -mips16 -march=mips32r2 -mhard-float -mllsc -mplt -mno-synci -mno-shared -mabi=32 -g -O2 <98> DW_AT_language : 1 (ANSI C) <99> DW_AT_name : (indirect string, offset: 0x190): foobar.c <9d> DW_AT_comp_dir : (indirect string, offset: 0x225): [...] <a1> DW_AT_ranges : 0x0 <a5> DW_AT_low_pc : 0x0 <a9> DW_AT_stmt_list : 0x27 <1><ad>: Abbrev Number: 2 (DW_TAG_subprogram) <ae> DW_AT_external : 1 <ae> DW_AT_name : foo <b2> DW_AT_decl_file : 1 <b3> DW_AT_decl_line : 1 <b4> DW_AT_prototyped : 1 <b4> DW_AT_type : <0xc2> <b8> DW_AT_low_pc : 0x400680 <bc> DW_AT_high_pc : 0x400684 <c0> DW_AT_frame_base : 1 byte block: 9c (DW_OP_call_frame_cfa) <c2> DW_AT_GNU_all_call_sites: 1 <1><c2>: Abbrev Number: 3 (DW_TAG_base_type) <c3> DW_AT_byte_size : 4 <c4> DW_AT_encoding : 5 (signed) <c5> DW_AT_name : int <1><c9>: Abbrev Number: 4 (DW_TAG_subprogram) <ca> DW_AT_external : 1 <ca> DW_AT_name : (indirect string, offset: 0x18a): foo32 <ce> DW_AT_decl_file : 1 <cf> DW_AT_decl_line : 11 <d0> DW_AT_prototyped : 1 <d0> DW_AT_type : <0xc2> <d4> DW_AT_low_pc : 0x400684 <d8> DW_AT_high_pc : 0x40068c <dc> DW_AT_frame_base : 1 byte block: 9c (DW_OP_call_frame_cfa) <de> DW_AT_GNU_all_call_sites: 1 <1><de>: Abbrev Number: 2 (DW_TAG_subprogram) <df> DW_AT_external : 1 <df> DW_AT_name : bar <e3> DW_AT_decl_file : 1 <e4> DW_AT_decl_line : 6 <e5> DW_AT_prototyped : 1 <e5> DW_AT_type : <0xc2> <e9> DW_AT_low_pc : 0x40068c <ed> DW_AT_high_pc : 0x400690 <f1> DW_AT_frame_base : 1 byte block: 9c (DW_OP_call_frame_cfa) <f3> DW_AT_GNU_all_call_sites: 1 <1><f3>: Abbrev Number: 5 (DW_TAG_subprogram) <f4> DW_AT_external : 1 <f4> DW_AT_name : (indirect string, offset: 0x199): main <f8> DW_AT_decl_file : 1 <f9> DW_AT_decl_line : 21 <fa> DW_AT_prototyped : 1 <fa> DW_AT_type : <0xc2> <fe> DW_AT_low_pc : 0x400490 <102> DW_AT_high_pc : 0x4004a4 <106> DW_AT_frame_base : 1 byte block: 9c (DW_OP_call_frame_cfa) <108> DW_AT_GNU_all_tail_call_sites: 1 [...] $ -- no sign of the ISA bit anywhere -- frame info: $ mips-linux-gnu-readelf -wf foobar [...] Contents of the .debug_frame section: 00000000 0000000c ffffffff CIE Version: 1 Augmentation: "" Code alignment factor: 1 Data alignment factor: -4 Return address column: 31 DW_CFA_def_cfa_register: r29 DW_CFA_nop 00000010 0000000c 00000000 FDE cie=00000000 pc=00400680..00400684 00000020 0000000c 00000000 FDE cie=00000000 pc=00400684..0040068c 00000030 0000000c 00000000 FDE cie=00000000 pc=0040068c..00400690 00000040 00000018 00000000 FDE cie=00000000 pc=00400490..004004a4 DW_CFA_advance_loc: 6 to 00400496 DW_CFA_def_cfa_offset: 32 DW_CFA_offset: r31 at cfa-4 DW_CFA_advance_loc: 6 to 0040049c DW_CFA_restore: r31 DW_CFA_def_cfa_offset: 0 DW_CFA_nop DW_CFA_nop DW_CFA_nop [...] $ -- no sign of the ISA bit anywhere -- range info (GDB doesn't use arange): $ mips-linux-gnu-readelf -wR foobar Contents of the .debug_ranges section: Offset Begin End 00000000 00400680 00400690 00000000 00400490 004004a4 00000000 <End of list> $ -- no sign of the ISA bit anywhere -- line info: $ mips-linux-gnu-readelf -wl foobar Raw dump of debug contents of section .debug_line: [...] Offset: 0x27 Length: 78 DWARF Version: 2 Prologue Length: 31 Minimum Instruction Length: 1 Initial value of 'is_stmt': 1 Line Base: -5 Line Range: 14 Opcode Base: 13 Opcodes: Opcode 1 has 0 args Opcode 2 has 1 args Opcode 3 has 1 args Opcode 4 has 1 args Opcode 5 has 1 args Opcode 6 has 0 args Opcode 7 has 0 args Opcode 8 has 0 args Opcode 9 has 1 args Opcode 10 has 0 args Opcode 11 has 0 args Opcode 12 has 1 args The Directory Table is empty. The File Name Table: Entry Dir Time Size Name 1 0 0 0 foobar.c Line Number Statements: Extended opcode 2: set Address to 0x400681 Special opcode 6: advance Address by 0 to 0x400681 and Line by 1 to 2 Special opcode 7: advance Address by 0 to 0x400681 and Line by 2 to 4 Special opcode 55: advance Address by 3 to 0x400684 and Line by 8 to 12 Special opcode 7: advance Address by 0 to 0x400684 and Line by 2 to 14 Advance Line by -7 to 7 Special opcode 131: advance Address by 9 to 0x40068d and Line by 0 to 7 Special opcode 7: advance Address by 0 to 0x40068d and Line by 2 to 9 Advance PC by 3 to 0x400690 Extended opcode 1: End of Sequence Extended opcode 2: set Address to 0x400491 Advance Line by 21 to 22 Copy Special opcode 6: advance Address by 0 to 0x400491 and Line by 1 to 23 Special opcode 60: advance Address by 4 to 0x400495 and Line by -1 to 22 Special opcode 34: advance Address by 2 to 0x400497 and Line by 1 to 23 Special opcode 62: advance Address by 4 to 0x40049b and Line by 1 to 24 Special opcode 32: advance Address by 2 to 0x40049d and Line by -1 to 23 Special opcode 6: advance Address by 0 to 0x40049d and Line by 1 to 24 Advance PC by 7 to 0x4004a4 Extended opcode 1: End of Sequence [...] -- a-ha, the ISA bit is there! However it's not always right for some reason, I don't have a small test case to show it, but here's an excerpt from MIPS16 libc, a prologue of a function: 00019630 <__libc_init_first>: 19630: e8a0 jrc ra 19632: 6500 nop 00019634 <_init>: 19634: f000 6a11 li v0,17 19638: f7d8 0b08 la v1,15e00 <_DYNAMIC+0x15c54> 1963c: f400 3240 sll v0,16 19640: e269 addu v0,v1 19642: 659a move gp,v0 19644: 64f6 save 48,ra,s0-s1 19646: 671c move s0,gp 19648: d204 sw v0,16(sp) 1964a: f352 984c lw v0,-27828(s0) 1964e: 6724 move s1,a0 and the corresponding DWARF-2 line info: Line Number Statements: Extended opcode 2: set Address to 0x19631 Advance Line by 44 to 45 Copy Special opcode 8: advance Address by 0 to 0x19631 and Line by 3 to 48 Special opcode 66: advance Address by 4 to 0x19635 and Line by 5 to 53 Advance PC by constant 17 to 0x19646 Special opcode 25: advance Address by 1 to 0x19647 and Line by 6 to 59 Advance Line by -6 to 53 Special opcode 33: advance Address by 2 to 0x19649 and Line by 0 to 53 Special opcode 39: advance Address by 2 to 0x1964b and Line by 6 to 59 Advance Line by -6 to 53 Special opcode 61: advance Address by 4 to 0x1964f and Line by 0 to 53 -- see that "Advance PC by constant 17" there? It clears the ISA bit, however code at 0x19646 is not standard MIPS code at all. For some reason the constant is always 17, I've never seen DW_LNS_const_add_pc used with any other value -- is that a binutils bug or what? 3. Solution: I think we should retain the value of the ISA bit in code references, that is effectively treat them as cookies as they indeed are (although trivially calculated) rather than raw memory byte addresses. In a perfect world both the static symbol table and the respective DWARF-2 records should be fixed to include the ISA bit in all the cases. I think however that this is infeasible. All the uses of `_bfd_mips_elf_symbol_processing' can not necessarily be tracked down. This function is used by `elf_slurp_symbol_table' that in turn is used by `bfd_canonicalize_symtab' and `bfd_canonicalize_dynamic_symtab', which are public interfaces. Similarly DWARF-2 records are used outside GDB, one notable if a bit questionable is the exception unwinder (libgcc/unwind-dw2.c) -- I have identified at least bits in `execute_cfa_program' and `uw_frame_state_for', both around the calls to `_Unwind_IsSignalFrame', that would need an update as they effectively flip the ISA bit freely; see also the comment about MASK_RETURN_ADDR in gcc/config/mips/mips.h. But there may be more places. Any change in how DWARF-2 records are produced would require an update there and would cause compatibility problems with libgcc.a binaries already distributed; given that this is a static library a complex change involving function renames would likely be required. I propose therefore to accept the existing inconsistencies and deal with them entirely within GDB. I have figured out that the ISA bit lost in various places can still be recovered as long as we have symbol information -- that'll have the `st_other' attribute correctly set to one of standard MIPS/MIPS16/microMIPS encoding. Here's the resulting change. It adds a couple of new `gdbarch' hooks, one to update symbol information with the ISA bit lost in `_bfd_mips_elf_symbol_processing', and two other ones to adjust DWARF-2 records as they're processed. The ISA bit is set in each address handled according to information retrieved from the symbol table for the symbol spanning the address if any; limits are adjusted based on the address they point to related to the respective base address. Additionally minimal symbol information has to be adjusted accordingly in its gdbarch hook. With these changes in place some complications with ISA bit juggling in the PC that never fully worked can be removed from the MIPS backend. Conversely, the generic dynamic linker event special breakpoint symbol handler has to be updated to call the minimal symbol gdbarch hook to record that the symbol is a MIPS16 or microMIPS address if applicable or the breakpoint will be set at the wrong address and either fail to work or cause SIGTRAPs (this is because the symbol is handled early on and bypasses regular symbol processing). 4. Results obtained The change fixes the example above -- to repeat only the crucial steps: (gdb) break main Breakpoint 1 at 0x400491: file foobar.c, line 23. (gdb) run Starting program: .../foobar Breakpoint 1, main () at foobar.c:23 23 return foop (); (gdb) print foo $1 = {int (void)} 0x400681 <foo> (gdb) set foop = bar (gdb) advance bar bar () at foobar.c:9 9 } (gdb) disassemble Dump of assembler code for function bar: => 0x0040068d <+0>: jr ra 0x0040068f <+2>: li v0,2 End of assembler dump. (gdb) finish Run till exit from #0 bar () at foobar.c:9 main () at foobar.c:24 24 } Value returned is $2 = 2 (gdb) continue Continuing. [Inferior 1 (process 14128) exited with code 02] (gdb) -- excellent! The change removes about 90 failures per MIPS16 multilib in mips-sde-elf testing too, results for MIPS16 are now similar to that for standard MIPS; microMIPS results are a bit worse because of host-I/O problems in QEMU used instead of MIPSsim for microMIPS testing only: === gdb Summary === # of expected passes 14299 # of unexpected failures 187 # of expected failures 56 # of known failures 58 # of unresolved testcases 11 # of untested testcases 52 # of unsupported tests 174 MIPS16: === gdb Summary === # of expected passes 14298 # of unexpected failures 187 # of unexpected successes 2 # of expected failures 54 # of known failures 58 # of unresolved testcases 12 # of untested testcases 52 # of unsupported tests 174 microMIPS: === gdb Summary === # of expected passes 14149 # of unexpected failures 201 # of unexpected successes 2 # of expected failures 54 # of known failures 58 # of unresolved testcases 7 # of untested testcases 53 # of unsupported tests 175 2014-12-12 Maciej W. Rozycki <macro@codesourcery.com> Maciej W. Rozycki <macro@mips.com> Pedro Alves <pedro@codesourcery.com> gdb/ * gdbarch.sh (elf_make_msymbol_special): Change type to `F', remove `predefault' and `invalid_p' initializers. (make_symbol_special): New architecture method. (adjust_dwarf2_addr, adjust_dwarf2_line): Likewise. (objfile, symbol): New declarations. * arch-utils.h (default_elf_make_msymbol_special): Remove prototype. (default_make_symbol_special): New prototype. (default_adjust_dwarf2_addr): Likewise. (default_adjust_dwarf2_line): Likewise. * mips-tdep.h (mips_unmake_compact_addr): New prototype. * arch-utils.c (default_elf_make_msymbol_special): Remove function. (default_make_symbol_special): New function. (default_adjust_dwarf2_addr): Likewise. (default_adjust_dwarf2_line): Likewise. * dwarf2-frame.c (decode_frame_entry_1): Call `gdbarch_adjust_dwarf2_addr'. * dwarf2loc.c (dwarf2_find_location_expression): Likewise. * dwarf2read.c (create_addrmap_from_index): Likewise. (process_psymtab_comp_unit_reader): Likewise. (add_partial_symbol): Likewise. (add_partial_subprogram): Likewise. (process_full_comp_unit): Likewise. (read_file_scope): Likewise. (read_func_scope): Likewise. Call `gdbarch_make_symbol_special'. (read_lexical_block_scope): Call `gdbarch_adjust_dwarf2_addr'. (read_call_site_scope): Likewise. (dwarf2_ranges_read): Likewise. (dwarf2_record_block_ranges): Likewise. (read_attribute_value): Likewise. (dwarf_decode_lines_1): Call `gdbarch_adjust_dwarf2_line'. (new_symbol_full): Call `gdbarch_adjust_dwarf2_addr'. * elfread.c (elf_symtab_read): Don't call `gdbarch_elf_make_msymbol_special' if unset. * mips-linux-tdep.c (micromips_linux_sigframe_validate): Strip the ISA bit from the PC. * mips-tdep.c (mips_unmake_compact_addr): New function. (mips_elf_make_msymbol_special): Set the ISA bit in the symbol's address appropriately. (mips_make_symbol_special): New function. (mips_pc_is_mips): Set the ISA bit before symbol lookup. (mips_pc_is_mips16): Likewise. (mips_pc_is_micromips): Likewise. (mips_pc_isa): Likewise. (mips_adjust_dwarf2_addr): New function. (mips_adjust_dwarf2_line): Likewise. (mips_read_pc, mips_unwind_pc): Keep the ISA bit. (mips_addr_bits_remove): Likewise. (mips_skip_trampoline_code): Likewise. (mips_write_pc): Don't set the ISA bit. (mips_eabi_push_dummy_call): Likewise. (mips_o64_push_dummy_call): Likewise. (mips_gdbarch_init): Install `mips_make_symbol_special', `mips_adjust_dwarf2_addr' and `mips_adjust_dwarf2_line' gdbarch handlers. * solib.c (gdb_bfd_lookup_symbol_from_symtab): Get target-specific symbol address adjustments. * gdbarch.h: Regenerate. * gdbarch.c: Regenerate. 2014-12-12 Maciej W. Rozycki <macro@codesourcery.com> gdb/testsuite/ * gdb.base/func-ptrs.c: New file. * gdb.base/func-ptrs.exp: New file.
2014-12-12 13:31:53 +00:00
low = gdbarch_adjust_dwarf2_addr (gdbarch, low);
high = gdbarch_adjust_dwarf2_addr (gdbarch, high);
length = extract_unsigned_integer (loc_ptr, 2, byte_order);
loc_ptr += 2;
/* (It would improve readability to print only the minimum
necessary digits of the second number of the range.) */
fprintf_filtered (stream, _(" Range %s-%s: "),
paddress (gdbarch, low), paddress (gdbarch, high));
/* Now describe this particular location. */
locexpr_describe_location_1 (symbol, low, stream, loc_ptr, length,
objfile, addr_size, offset_size,
dlbaton->per_cu);
fprintf_filtered (stream, "\n");
loc_ptr += length;
}
}
/* Describe the location of SYMBOL as an agent value in VALUE, generating
any necessary bytecode in AX. */
static void
loclist_tracepoint_var_ref (struct symbol *symbol, struct gdbarch *gdbarch,
struct agent_expr *ax, struct axs_value *value)
{
struct dwarf2_loclist_baton *dlbaton = SYMBOL_LOCATION_BATON (symbol);
const gdb_byte *data;
size_t size;
unsigned int addr_size = dwarf2_per_cu_addr_size (dlbaton->per_cu);
gdb * opencl-lang.c (lval_func_check_synthetic_pointer): New function. * value.h (struct lval_funcs) <indirect, check_synthetic_pointer>: New fields. (value_bits_synthetic_pointer): Declare. * value.c (value_bits_synthetic_pointer): New function. * valprint.c (valprint_check_validity): Handle synthetic pointers. * valops.c (value_ind): Use new 'indirect' lval_funcs method. * valarith.c (value_ptradd): Use set_value_component_location. * p-valprint.c (pascal_object_print_value_fields): Handle synthetic pointers. * jv-valprint.c (java_print_value_fields): Handle synthetic pointers. * dwarf2read.c (dwarf_stack_op_name): Add DW_OP_GNU_implicit_pointer. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. Handle location lists. (fill_in_loclist_baton): New function. (dwarf2_symbol_mark_computed): Use it. * dwarf2loc.h (dwarf2_find_location_expression): Declare. (dwarf2_fetch_die_location_block): Add get_frame_pc, baton arguments. * dwarf2loc.c (dwarf2_find_location_expression): Rename from find_location_expression. No longer static. Update all callers. (dwarf_expr_frame_pc): New function. (per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update all callers. (struct piece_closure) <per_cu>: New field. (allocate_piece_closure): Add per_cu argument. (read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_bits): Remove validity argument, add check_for argument. Handle DWARF_VALUE_IMPLICIT_POINTER. (check_pieced_value_validity, check_pieced_value_invalid): Update. (check_pieced_synthetic_pointer): New function. (get_frame_address_in_block_wrapper): New function. (indirect_pieced_value): New function. (pieced_value_funcs): Update. (invalid_synthetic_pointer): New function. (dwarf2_evaluate_loc_desc_full): Rename from dwarf2_evaluate_loc_desc. Add byte_offset argument. (dwarf2_evaluate_loc_desc): Rewrite. (dwarf2_loc_desc_needs_frame): Set new field on context. (get_ax_pc): New function. (disassemble_dwarf_expression): Handle DW_OP_GNU_implicit_pointer. * dwarf2expr.h (enum dwarf_value_location) <DWARF_VALUE_IMPLICIT_POINTER>: New constant. (struct dwarf_expr_context) <get_frame_pc>: New field. (struct dwarf_expr_piece) <v.ptr>: New field. * dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER. (execute_stack_op): Handle DW_OP_GNU_implicit_pointer. * dwarf2-frame.c (no_get_frame_pc): New function. (execute_stack_op): Set new field on context. * cp-valprint.c (cp_print_value_fields): Handle synthetic pointers. gdb/testsuite * gdb.dwarf2/implptr.exp: New file. * gdb.dwarf2/implptr.c: New file. * gdb.dwarf2/implptr.S: New file.
2010-11-29 21:18:16 +00:00
data = dwarf2_find_location_expression (dlbaton, &size, ax->scope);
if (size == 0)
value->optimized_out = 1;
else
dwarf2_compile_expr_to_ax (ax, value, gdbarch, addr_size, data, data + size,
dlbaton->per_cu);
}
the "compile" command This final patch adds the new "compile" command and subcommands, and all the machinery needed to make it work. A shared library supplied by gcc is used for all communications with gcc. Types and most aspects of symbols are provided directly by gdb to the compiler using this library. gdb provides some information about the user's code using plain text. Macros are emitted this way, and DWARF location expressions (and bounds for VLA) are compiled to C code. This hybrid approach was taken because, on the one hand, it is better to provide global declarations and such on demand; but on the other hand, for local variables, translating DWARF location expressions to C was much simpler than exporting a full compiler API to gdb -- the same result, only easier to implement, understand, and debug. In the ordinary mode, the user's expression is wrapped in a dummy function. After compilation, gdb inserts the resulting object code into the inferior, then calls this function. Access to local variables is provided by noting which registers are used by location expressions, and passing a structure of register values into the function. Writes to registers are supported by copying out these values after the function returns. This approach was taken so that we could eventually implement other more interesting features based on this same infrastructure; for example, we're planning to investigate inferior-side breakpoint conditions. gdb/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Update. * symtab.h (struct symbol_computed_ops) <generate_c_location>: New field. * p-lang.c (pascal_language_defn): Update. * opencl-lang.c (opencl_language_defn): Update. * objc-lang.c (objc_language_defn): Update. * m2-lang.c (m2_language_defn): Update. * language.h (struct language_defn) <la_get_compile_instance, la_compute_program>: New fields. * language.c (unknown_language_defn, auto_language_defn) (local_language_defn): Update. * jv-lang.c (java_language_defn): Update. * go-lang.c (go_language_defn): Update. * f-lang.c (f_language_defn): Update. * dwarf2loc.h (dwarf2_compile_property_to_c): Declare. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): New functions. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Update. * defs.h (enum compile_i_scope_types): New. (enum command_control_type) <compile_control>: New constant. (struct command_line) <control_u>: New field. * d-lang.c (d_language_defn): Update. * compile/compile.c: New file. * compile/compile-c-support.c: New file. * compile/compile-c-symbols.c: New file. * compile/compile-c-types.c: New file. * compile/compile.h: New file. * compile/compile-internal.h: New file. * compile/compile-loc2c.c: New file. * compile/compile-object-load.c: New file. * compile/compile-object-load.h: New file. * compile/compile-object-run.c: New file. * compile/compile-object-run.h: New file. * cli/cli-script.c (multi_line_command_p, print_command_lines) (execute_control_command, process_next_line) (recurse_read_control_structure): Handle compile_control. * c-lang.h (c_get_compile_context, c_compute_program): Declare. * c-lang.c (c_language_defn, cplus_language_defn) (asm_language_defn, minimal_language_defn): Update. * ada-lang.c (ada_language_defn): Update. * Makefile.in (SUBDIR_GCC_COMPILE_OBS, SUBDIR_GCC_COMPILE_SRCS): New variables. (SFILES): Add SUBDIR_GCC_COMPILE_SRCS. (HFILES_NO_SRCDIR): Add compile.h. (COMMON_OBS): Add SUBDIR_GCC_COMPILE_OBS. (INIT_FILES): Add SUBDIR_GCC_COMPILE_SRCS. (compile.o, compile-c-types.o, compile-c-symbols.o) (compile-object-load.o, compile-object-run.o, compile-loc2c.o) (compile-c-support.o): New targets. gdb/doc/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.texinfo (Altering): Update. (Compiling and Injecting Code): New node. gdb/testsuite/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * configure.ac: Add gdb.compile/. * configure: Regenerate. * gdb.compile/Makefile.in: New file. * gdb.compile/compile-ops.exp: New file. * gdb.compile/compile-ops.c: New file. * gdb.compile/compile-tls.c: New file. * gdb.compile/compile-tls.exp: New file. * gdb.compile/compile-constvar.S: New file. * gdb.compile/compile-constvar.c: New file. * gdb.compile/compile-mod.c: New file. * gdb.compile/compile-nodebug.c: New file. * gdb.compile/compile-setjmp-mod.c: New file. * gdb.compile/compile-setjmp.c: New file. * gdb.compile/compile-setjmp.exp: New file. * gdb.compile/compile-shlib.c: New file. * gdb.compile/compile.c: New file. * gdb.compile/compile.exp: New file. * lib/gdb.exp (skip_compile_feature_tests): New proc.
2014-05-14 20:35:45 +00:00
/* symbol_computed_ops 'generate_c_location' method. */
static void
loclist_generate_c_location (struct symbol *sym, struct ui_file *stream,
struct gdbarch *gdbarch,
unsigned char *registers_used,
CORE_ADDR pc, const char *result_name)
{
struct dwarf2_loclist_baton *dlbaton = SYMBOL_LOCATION_BATON (sym);
unsigned int addr_size = dwarf2_per_cu_addr_size (dlbaton->per_cu);
const gdb_byte *data;
size_t size;
data = dwarf2_find_location_expression (dlbaton, &size, pc);
if (size == 0)
error (_("symbol \"%s\" is optimized out"), SYMBOL_NATURAL_NAME (sym));
compile_dwarf_expr_to_c (stream, result_name,
sym, pc, gdbarch, registers_used, addr_size,
data, data + size,
dlbaton->per_cu);
}
/* The set of location functions used with the DWARF-2 expression
evaluator and location lists. */
* symtab.h: Rename SYMBOL_OPS to SYMBOL_COMPUTED_OPS. * ax-gdb.c (gen_var_ref): Likewise. * findvar.c (read_var_value, symbol_read_needs_frame): Likewise. * printcmd.c (address_info): Likewise. * dwarf2loc.c (dwarf_expr_frame_base): Likewise. * dwarf2read.c (dwarf2_symbol_mark_computed): Likewise. * symtab.h: Rename struct symbol_ops to struct symbol_computed_ops. * dwarf2loc.h: Likewise. * dwarf2loc.c (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Likewise. * symtab.h: (struct symbol_register_ops): New struct definition. (struct symbol): Make "ops" member a union of symbol_computed_ops and symbol_register_ops callback pointers. (SYMBOL_REGISTER_OPS): New macro. * tracepoint.c: Include "objfiles.h". (scope_info, collect_symbol): Use SYMBOL_REGISTER_OPS register_number callback to retrieve register numbers. * ax-gdb.c (gen_var_ref): Likewise. * findvar.c (read_var_value): Likewise. * printcmd.c (address_info): Likewise. * coffread.c (coff_reg_to_regnum): New function. (coff_register_funcs): New static variable. (process_coff_symbol): Do not call gdbarch_sdb_reg_to_regnum. Install SYMBOL_REGISTER_OPS callbacks. * mdebugread.c (mdebug_reg_to_regnum): New function. (mdebug_register_funcs): New static variable. (parse_symbol): Do not call gdbarch_ecoff_reg_to_regnum. Install SYMBOL_REGISTER_OPS callbacks. * stabsread.c (stab_reg_to_regnum): New function. (stab_register_funcs): New static variable. (define_symbol): Do not call gdbarch_stab_reg_to_regnum. Install SYMBOL_REGISTER_OPS callbacks.
2009-06-04 12:28:39 +00:00
const struct symbol_computed_ops dwarf2_loclist_funcs = {
loclist_read_variable,
gdb/ Display @entry parameter values (without references). * dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New functions. * dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): New declarations. * dwarf2loc.c (dwarf2_find_location_expression): Support location list entry record. (dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry) (value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New functions. (dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry. (loclist_read_variable_at_entry): New function. (dwarf2_loclist_funcs): Install loclist_read_variable_at_entry. * dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in DW_AT_location, call dwarf_block_to_sp_offset for it. * frame.h (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values): New declarations. (struct frame_arg): New field entry_kind. (read_frame_arg): New parameter entryargp. * mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix. (list_args_or_locals): New variable entryarg, initialize it. Initialize also entry_kind of arg and entryarg. Conditionalize list_arg_or_local for arg, add list_arg_or_local for entryarg. Call xfree for entryarg.error. * stack.c (print_entry_values_no, print_entry_values_only) (print_entry_values_preferred, print_entry_values_if_needed) (print_entry_values_both, print_entry_values_compact) (print_entry_values_default, print_entry_values_choices) (print_entry_values): New variables. (print_frame_arg): New gdb_assert for arg->entry_kind. Optionally print the `@entry' suffix, possibly in combination for print_entry_values_compact. (read_frame_arg): New parameter entryargp, new variables entryval, entryval_error and val_equal. Read in also entryargp, respect print_entry_values, compare the values using val_equal, fill in also argp->entry_kind (together with entryargp->entry_kind). (print_frame_args): New variable entryarg, initialize it. Conditionalize print_frame_arg for arg, add print_frame_arg for entryarg. Call xfree for entryarg.error. (_initialize_stack): Call add_setshow_enum_cmd for `entry-values'. * symtab.h (struct symbol_computed_ops): New field read_variable_at_entry. gdb/doc/ Display @entry parameter values (without references). * gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call example. (Print Settings): New description of set print entry-values and show print entry-values. gdb/testsuite/ Display @entry parameter values (without references). * gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2) (different, validity, invalid): New functions. (main): Call them. * gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr, stacktest, breakhere_stacktest, different, breakhere_different, breakhere_validity and breakhere_invalid. (entry: bt): Update for @entry. (entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *) (entry_validity: *, entry_invalid: *): Many new tests. * gdb.base/break.exp (run until breakpoint set at small function, optimized file): Accept also the @entry suffix. * gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value. * gdb.mi/mi2-amd64-entry-value.c: New files. * gdb.mi/mi2-amd64-entry-value.exp: New files.
2011-10-09 19:34:19 +00:00
loclist_read_variable_at_entry,
loclist_read_needs_frame,
loclist_describe_location,
2013-03-20 Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> PR symtab/8421: * coffread.c (coff_register_index): New global. (process_coff_symbol, coff_read_enum_type): Set SYMBOL_ACLASS_INDEX. (_initialize_coffread): Initialize new global. * dwarf2loc.c (locexpr_find_frame_base_location) (dwarf2_block_frame_base_locexpr_funcs) (loclist_find_frame_base_location) (dwarf2_block_frame_base_loclist_funcs): New. (dwarf_expr_frame_base_1): Call SYMBOL_BLOCK_OPS, remove internal_error. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Add location_has_loclist. * dwarf2loc.h (dwarf2_block_frame_base_locexpr_funcs) (dwarf2_block_frame_base_loclist_funcs): New. * dwarf2read.c (dwarf2_locexpr_index, dwarf2_loclist_index) (dwarf2_locexpr_block_index, dwarf2_loclist_block_index): New globals. (read_func_scope): Update. (fixup_go_packaging, mark_common_block_symbol_computed) (var_decode_location, new_symbol_full, dwarf2_const_value): Set SYMBOL_ACLASS_INDEX. (dwarf2_symbol_mark_computed): Likewise. Add 'is_block' argument. (_initialize_dwarf2_read): Initialize new globals. * jit.c (finalize_symtab): Set SYMBOL_ACLASS_INDEX. * jv-lang.c (add_class_symbol): Set SYMBOL_ACLASS_INDEX. * mdebugread.c (mdebug_register_index, mdebug_regparm_index): New globals. (parse_symbol, psymtab_to_symtab_1): Set SYMBOL_ACLASS_INDEX. (_initialize_mdebugread): Initialize new globals. * psympriv.h (struct partial_symbol) <aclass>: Update comment. * stabsread.c (patch_block_stabs): Set SYMBOL_ACLASS_INDEX. (stab_register_index, stab_regparm_index): New globals. (define_symbol, read_enum_type, common_block_end): Set SYMBOL_ACLASS_INDEX. (_initialize_stabsread): Initialize new globals. * symtab.c (next_aclass_value, symbol_impl, symbol_impls): New globals. (MAX_SYMBOL_IMPLS): New define. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl) (initialize_ordinary_address_classes): New functions. (_initialize_symtab): Call initialize_ordinary_address_classes. * symtab.h (enum address_class) <LOC_FINAL_VALUE>: New constant. (struct symbol_impl): New. (SYMBOL_ACLASS_BITS): New define. (struct symbol) <aclass, ops>: Remove fields. <aclass_index>: New field. (symbol_impls): Declare. (SYMBOL_CLASS, SYMBOL_COMPUTED_OPS, SYMBOL_REGISTER_OPS): Redefine. (SYMBOL_IMPL, SYMBOL_ACLASS_INDEX): New defines. (register_symbol_computed_impl, register_symbol_block_impl) (register_symbol_register_impl): Declare. (struct symbol_computed_ops): Add location_has_loclist. (struct symbol_block_ops): New. (SYMBOL_BLOCK_OPS): New. * xcoffread.c (process_xcoff_symbol): Set SYMBOL_ACLASS_INDEX.
2013-03-20 18:33:05 +00:00
1, /* location_has_loclist */
the "compile" command This final patch adds the new "compile" command and subcommands, and all the machinery needed to make it work. A shared library supplied by gcc is used for all communications with gcc. Types and most aspects of symbols are provided directly by gdb to the compiler using this library. gdb provides some information about the user's code using plain text. Macros are emitted this way, and DWARF location expressions (and bounds for VLA) are compiled to C code. This hybrid approach was taken because, on the one hand, it is better to provide global declarations and such on demand; but on the other hand, for local variables, translating DWARF location expressions to C was much simpler than exporting a full compiler API to gdb -- the same result, only easier to implement, understand, and debug. In the ordinary mode, the user's expression is wrapped in a dummy function. After compilation, gdb inserts the resulting object code into the inferior, then calls this function. Access to local variables is provided by noting which registers are used by location expressions, and passing a structure of register values into the function. Writes to registers are supported by copying out these values after the function returns. This approach was taken so that we could eventually implement other more interesting features based on this same infrastructure; for example, we're planning to investigate inferior-side breakpoint conditions. gdb/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Update. * symtab.h (struct symbol_computed_ops) <generate_c_location>: New field. * p-lang.c (pascal_language_defn): Update. * opencl-lang.c (opencl_language_defn): Update. * objc-lang.c (objc_language_defn): Update. * m2-lang.c (m2_language_defn): Update. * language.h (struct language_defn) <la_get_compile_instance, la_compute_program>: New fields. * language.c (unknown_language_defn, auto_language_defn) (local_language_defn): Update. * jv-lang.c (java_language_defn): Update. * go-lang.c (go_language_defn): Update. * f-lang.c (f_language_defn): Update. * dwarf2loc.h (dwarf2_compile_property_to_c): Declare. * dwarf2loc.c (dwarf2_compile_property_to_c) (locexpr_generate_c_location, loclist_generate_c_location): New functions. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Update. * defs.h (enum compile_i_scope_types): New. (enum command_control_type) <compile_control>: New constant. (struct command_line) <control_u>: New field. * d-lang.c (d_language_defn): Update. * compile/compile.c: New file. * compile/compile-c-support.c: New file. * compile/compile-c-symbols.c: New file. * compile/compile-c-types.c: New file. * compile/compile.h: New file. * compile/compile-internal.h: New file. * compile/compile-loc2c.c: New file. * compile/compile-object-load.c: New file. * compile/compile-object-load.h: New file. * compile/compile-object-run.c: New file. * compile/compile-object-run.h: New file. * cli/cli-script.c (multi_line_command_p, print_command_lines) (execute_control_command, process_next_line) (recurse_read_control_structure): Handle compile_control. * c-lang.h (c_get_compile_context, c_compute_program): Declare. * c-lang.c (c_language_defn, cplus_language_defn) (asm_language_defn, minimal_language_defn): Update. * ada-lang.c (ada_language_defn): Update. * Makefile.in (SUBDIR_GCC_COMPILE_OBS, SUBDIR_GCC_COMPILE_SRCS): New variables. (SFILES): Add SUBDIR_GCC_COMPILE_SRCS. (HFILES_NO_SRCDIR): Add compile.h. (COMMON_OBS): Add SUBDIR_GCC_COMPILE_OBS. (INIT_FILES): Add SUBDIR_GCC_COMPILE_SRCS. (compile.o, compile-c-types.o, compile-c-symbols.o) (compile-object-load.o, compile-object-run.o, compile-loc2c.o) (compile-c-support.o): New targets. gdb/doc/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> * gdb.texinfo (Altering): Update. (Compiling and Injecting Code): New node. gdb/testsuite/ChangeLog 2014-12-12 Phil Muldoon <pmuldoon@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * configure.ac: Add gdb.compile/. * configure: Regenerate. * gdb.compile/Makefile.in: New file. * gdb.compile/compile-ops.exp: New file. * gdb.compile/compile-ops.c: New file. * gdb.compile/compile-tls.c: New file. * gdb.compile/compile-tls.exp: New file. * gdb.compile/compile-constvar.S: New file. * gdb.compile/compile-constvar.c: New file. * gdb.compile/compile-mod.c: New file. * gdb.compile/compile-nodebug.c: New file. * gdb.compile/compile-setjmp-mod.c: New file. * gdb.compile/compile-setjmp.c: New file. * gdb.compile/compile-setjmp.exp: New file. * gdb.compile/compile-shlib.c: New file. * gdb.compile/compile.c: New file. * gdb.compile/compile.exp: New file. * lib/gdb.exp (skip_compile_feature_tests): New proc.
2014-05-14 20:35:45 +00:00
loclist_tracepoint_var_ref,
loclist_generate_c_location
};
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
2012-03-01 Pedro Alves <palves@redhat.com> * amd64-linux-tdep.c (amd64_linux_record_signal): Make static. * breakpoint.c (create_exception_master_breakpoint, trace_command) (ftrace_command, strace_command): Make static. * d-lang.c (_initialize_d_language): Declare. * dwarf2expr.c (_initialize_dwarf2expr): Declare. * dwarf2loc.c (_initialize_dwarf2loc): * dwarf2read.c (process_psymtab_comp_unit): Make static. * exec.c (exec_get_section_table): Make static. * i386-linux-tdep.c (i386_linux_record_signal): Make static. * infcmd.c (ensure_valid_thread, ensure_not_tfind_mode): Make static. * inferior.c (remove_inferior_command, add_inferior_command) (clone_inferior_command): Make static. * linux-nat.c (linux_nat_thread_address_space) (linux_nat_core_of_thread): Make static. * linux-tdep.c (_initialize_linux_tdep): Declare. * objc-lang.c (_initialize_objc_lang): Declare. * opencl-lang.c (builtin_opencl_type, opencl_language_arch_info): Make static. (_initialize_opencl_language): Declare. * record.c (_initialize_record): Declare. * remote.c (demand_private_info, remote_get_tib_address) (remote_supports_cond_tracepoints) (remote_supports_fast_tracepoints, remote_get_tracepoint_status): Make static. * skip.c (_initialize_step_skip): Declare. * symtab.c (skip_prologue_using_lineinfo): Make static. * tracepoint.c (delete_trace_state_variable) (trace_variable_command, delete_trace_variable_command) (get_uploaded_tsv, find_matching_tracepoint_location) (find_matching_tsv, create_tsv_from_upload, get_traceframe_info): Make static. * value.c (pack_unsigned_long): Make static. * varobj.c (varobj_ensure_python_env): Make static. * windows-tdep.c (_initialize_windows_tdep): Declare. * xml-syscall.c (make_cleanup_free_syscalls_info): Make static.
2012-03-01 21:14:00 +00:00
/* Provide a prototype to silence -Wmissing-prototypes. */
extern initialize_file_ftype _initialize_dwarf2loc;
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
void
_initialize_dwarf2loc (void)
{
gdb/ * dwarf2loc.c (entry_values_debug): Add 'unsigned'. (_initialize_dwarf2loc): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * dwarf2loc.h: Update the declaration of 'entry_values_debug'. * dwarf2read.c (dwarf2_die_debug): Add 'unsigned'. (_initialize_dwarf2_read): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * darwin-nat.c (dwarwin_debug_flag): Add 'unsigned'. (_initialize_darwin_inferior): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * frame.c (frame_debug): Add 'unsigned'. (_intialize_frame): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * frame.h: Update the declaration of 'frame_debug'. * gdbtypes.c (overload_debug): Add 'unsigned'. (_initialize_gdbtypes): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * inferior.h: Update declaration of 'debug_infrun'. * infrun.c (debug_infrun): Add 'unsigned'. (_initialize_infrun): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * jit.c (jit_debug): Add 'unsigned'. (_initialize_jit): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * linux-nat.c (debug_linux_nat): Add 'unsigned'. (_initialize_linux_nat): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * linux-thread-db.c (libthread_db_debug): Add 'unsigned'. (_initialize_thread_db): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * machoread.c (mach_o_debug_level): Add 'unsigned'. (_initialize_machoread): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * mi/mi-cmd-var.c: Update the declaration of 'varobjdebug'. * microblaze-tdep.c (microblaze_debug_flag): Add 'unsigned'. (_initialize_microblaze_tdep): Call add_setshow_zuinteger_cmd intead of add_setshow_zinteger_cmd. * mips-tdep.c (mips_debug): Add 'unsigned'. (_initialize_mips_tdep): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * monitor.c (monitor_debug): Add 'unsigned'. (_initialize_remote_monitors): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * observer.c (observer_debug): Add 'unsigned'. (_initialize_observer): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * parse.c (expressiondebug): Add 'unsigned'. (_initialize_parse): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * record.c (record_debug): Add 'unsigned'. (_initialize_record): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * record.h: Update the declaration of 'record_debug'. * stap-probe.c (stap_expression_debug): Add 'unsigned'. (_initialize_stap_probe): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * serial.c (global_serial_debug_p): Add 'unsigned'. (_initialize_serial): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * solib-dsbt.c (solib_dsbt_debug): Add 'unsigned'. (_initialize_dsbt_solib): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * solib-frv.c (solib_frv_debug): Add 'unsigned'. (_initialize_frv_solib): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * target.c (targetdebug): Add 'unsigned'. (initialize_targets): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * valops.c (overload_debug): Add 'unsigned'. * varobj.c (varobjdebug): Add 'unsigned'. (_initialize_varobj): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * xtensa-tdep.c (xtensa_debug_level): Add 'unsigned'. (_initialize_xtensa_tdep): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * arch-utils.h: Remove the declaration of 'gdbarch_debug'. * gdbarch.sh (gdbarch_debug): Add 'unsigned'. (extern void _initialize_gdbarch): Call add_setshow_zuinteger_cmd instead of add_setshow_zinteger_cmd. * gdbarch.c, gdbarch.h: Re-generated.
2012-08-02 09:36:40 +00:00
add_setshow_zuinteger_cmd ("entry-values", class_maintenance,
&entry_values_debug,
_("Set entry values and tail call frames "
"debugging."),
_("Show entry values and tail call frames "
"debugging."),
_("When non-zero, the process of determining "
"parameter values from function entry point "
"and tail call frames will be printed."),
NULL,
show_entry_values_debug,
&setdebuglist, &showdebuglist);
gdb/ Implement basic support for DW_TAG_GNU_call_site. * block.c: Include gdbtypes.h and exceptions.h. (call_site_for_pc): New function. * block.h (call_site_for_pc): New declaration. * defs.h: Include hashtab.h. (make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New declarations. * dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install ctx_no_push_dwarf_reg_entry_value. * dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL. (dwarf_block_to_dwarf_reg): New function. (execute_stack_op) <DW_OP_GNU_entry_value>: Implement it. (ctx_no_push_dwarf_reg_entry_value): New function. * dwarf2expr.h (struct dwarf_expr_context_funcs): New field push_dwarf_reg_entry_value. (ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New declarations. * dwarf2loc.c: Include gdbcmd.h. (dwarf_expr_ctx_funcs): New forward declaration. (entry_values_debug, show_entry_values_debug, call_site_to_target_addr) (dwarf_expr_reg_to_entry_parameter) (dwarf_expr_push_dwarf_reg_entry_value): New. (dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value. (dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR. (needs_dwarf_reg_entry_value): New function. (needs_frame_ctx_funcs): Install it. (_initialize_dwarf2loc): New function. * dwarf2loc.h (entry_values_debug): New declaration. * dwarf2read.c (struct dwarf2_cu): New field call_site_htab. (read_call_site_scope): New forward declaration. (process_full_comp_unit): Copy call_site_htab. (process_die): Support DW_TAG_GNU_call_site. (read_call_site_scope): New function. (dwarf2_get_pc_bounds): Support NULL HIGHPC. (dwarf_tag_name): Support DW_TAG_GNU_call_site. (cleanup_htab): Delete. (write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it. * exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR. * gdb-gdb.py (StructMainTypePrettyPrinter): Support FIELD_LOC_KIND_DWARF_BLOCK. * gdbtypes.h (enum field_loc_kind): New entry FIELD_LOC_KIND_DWARF_BLOCK. (struct main_type): New loc entry dwarf_block. (struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK) (TYPE_FIELD_DWARF_BLOCK): New. * python/py-type.c: Include dwarf2loc.h. (check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New internal_error call on unknown FIELD_LOC_KIND. * symtab.h (struct symtab): New field call_site_htab. * utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete) (core_addr_hash, core_addr_eq): New functions. gdb/testsuite/ Implement basic support for DW_TAG_GNU_call_site. * gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value. * gdb.arch/amd64-entry-value.cc: New file. * gdb.arch/amd64-entry-value.exp: New file.
2011-10-09 19:21:39 +00:00
}