1999-04-16 01:35:26 +00:00
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/* Definitions for values of C expressions, for GDB.
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2003-05-10 23:10:08 +00:00
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2015-01-01 09:32:14 +00:00
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Copyright (C) 1986-2015 Free Software Foundation, Inc.
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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This file is part of GDB.
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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2007-08-23 18:08:50 +00:00
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the Free Software Foundation; either version 3 of the License, or
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1999-07-07 20:19:36 +00:00
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(at your option) any later version.
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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1999-04-16 01:35:26 +00:00
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1999-07-07 20:19:36 +00:00
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You should have received a copy of the GNU General Public License
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2007-08-23 18:08:50 +00:00
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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1999-04-16 01:35:26 +00:00
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#if !defined (VALUE_H)
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#define VALUE_H 1
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2003-05-10 23:10:08 +00:00
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#include "doublest.h"
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2003-06-05 20:59:16 +00:00
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#include "frame.h" /* For struct frame_id. */
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2003-05-10 23:10:08 +00:00
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struct block;
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2003-04-12 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh: Add missing opaque declarations.
* gdbarch.h: Regnerate.
* symtab.h: Add missing opaque declarations.
* value.h, target.h, symfile.h, stabsread.h: Ditto.
* x86-64-tdep.h, xmodem.h, monitor.h, typeprint.h: Ditto.
* srec.h, solib-svr4.h, source.h, inferior.h: Ditto.
* ser-unix.h, serial.h, remote-utils.h, gdbcore.h: Ditto.
* ppc-tdep.h, ocd.h, mips-tdep.h, gdbtypes.h: Ditto.
* buildsym.h, builtin-regs.h, linespec.h, language.h: Ditto.
* i387-tdep.h, gdbthread.h, event-top.h, gdb.h: Ditto.
* dwarf2cfi.h, doublest.h, disasm.h, cp-abi.h: Ditto.
* cli-out.h, c-lang.h, ax-gdb.h, arch-utils.h: Ditto.
* ada-lang.h, config/nm-lynx.h, config/nm-linux.h: Ditto.
* config/sparc/tm-sp64.h, config/rs6000/tm-rs6000.h: Ditto.
* config/pa/tm-hppah.h, config/m68k/tm-delta68.h: Ditto.
* cli/cli-setshow.h, cli/cli-script.h: Ditto.
2003-04-12 17:41:26 +00:00
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struct expression;
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2003-05-10 23:10:08 +00:00
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struct regcache;
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2003-04-12 Andrew Cagney <cagney@redhat.com>
* gdbarch.sh: Add missing opaque declarations.
* gdbarch.h: Regnerate.
* symtab.h: Add missing opaque declarations.
* value.h, target.h, symfile.h, stabsread.h: Ditto.
* x86-64-tdep.h, xmodem.h, monitor.h, typeprint.h: Ditto.
* srec.h, solib-svr4.h, source.h, inferior.h: Ditto.
* ser-unix.h, serial.h, remote-utils.h, gdbcore.h: Ditto.
* ppc-tdep.h, ocd.h, mips-tdep.h, gdbtypes.h: Ditto.
* buildsym.h, builtin-regs.h, linespec.h, language.h: Ditto.
* i387-tdep.h, gdbthread.h, event-top.h, gdb.h: Ditto.
* dwarf2cfi.h, doublest.h, disasm.h, cp-abi.h: Ditto.
* cli-out.h, c-lang.h, ax-gdb.h, arch-utils.h: Ditto.
* ada-lang.h, config/nm-lynx.h, config/nm-linux.h: Ditto.
* config/sparc/tm-sp64.h, config/rs6000/tm-rs6000.h: Ditto.
* config/pa/tm-hppah.h, config/m68k/tm-delta68.h: Ditto.
* cli/cli-setshow.h, cli/cli-script.h: Ditto.
2003-04-12 17:41:26 +00:00
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struct symbol;
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struct type;
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2003-05-10 23:10:08 +00:00
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struct ui_file;
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* valprint.c (val_print): Add new language parameter and use it
instead of using the current_language. Update calls to val_print
throughout.
(common_val_print): Add new langauge parameter and pass it to
val_print.
* value.h (struct language_defn): Add opaque declaration.
(val_print, common_val_print): Update declarations.
* stack.c (print_frame_args): Update call to common_val_print
using the appropriate language.
* mi/mi-cmd-stack.c (list_args_or_locals): Likewise.
* c-valprint, f-valprint.c, m2-valprint.c, mt-tdep.c, infcmd.c,
mi/mi-main.c, jv-valprint.c, ada-valprint.c, varobj.c, p-valprint.c,
scm-valprint.c, cp-valprint.c, sh64-tdep.c, printcmd.c:
#include "language.h" if necessary.
Update calls to val_print and common_val_print.
* Makefile.in (mt-tdep.o, sh64-tdep.o, mi-cmds.o, mi-main.o):
Update dependencies.
2008-05-06 21:35:01 +00:00
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struct language_defn;
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gdb
* varobj.c (value_get_print_value): Include valprint.h.
(value_get_print_value): Use get_formatted_print_options.
* value.h (struct value_print_options): Declare.
(value_print, val_print, common_val_print, val_print_string):
Update.
* value.c: Include valprint.h.
(show_values): Use get_user_print_options.
(show_convenience): Likewise.
* valprint.h (prettyprint_arrays, prettyprint_structs): Don't
declare.
(struct value_print_options): New type.
(vtblprint, unionprint, addressprint, objectprint, print_max,
inspect_it, repeat_count_threshold, output_format,
stop_print_at_null): Don't declare.
(user_print_options, get_user_print_options,
get_raw_print_options, get_formatted_print_options): Declare.
(print_array_indexes_p): Don't declare.
(maybe_print_array_index, val_print_array_elements): Update.
* valprint.c (print_max): Remove.
(user_print_options): New global.
(get_user_print_options, get_raw_print_options,
get_formatted_print_options): New functions.
(print_array_indexes, repeat_count_threshold, stop_print_at_null,
prettyprint_structs, prettyprint_arrays, unionprint,
addressprint): Remove.
(val_print): Remove format, deref_ref, pretty arguments; add
options. Update.
(common_val_print): Likewise.
(print_array_indexes_p): Remove.
(maybe_print_array_index): Remove format, pretty arguments; add
options. Update.
(val_print_array_elements): Remove format, deref_ref, pretty
arguments; add options. Update.
(val_print_string): Add options argument. Update.
(_initialize_valprint): Use user_print_options.
(output_format): Remove.
(set_output_radix_1): Use user_print_options.
* typeprint.c: Include valprint.h.
(objectprint): Don't declare.
(whatis_exp): Use get_user_print_options.
* tui/tui-regs.c: Include valprint.h.
(tui_register_format): Use get_formatted_print_options.
* tracepoint.c: Include valprint.h.
(addressprint): Don't declare.
(trace_mention): Use get_user_print_options.
(tracepoints_info): Likewise.
* stack.c (print_frame_args): Use get_raw_print_options.
(print_frame_info): Use get_user_print_options.
(print_frame): Likewise.
* sh64-tdep.c: Include valprint.h
(sh64_do_register): Use get_formatted_print_options.
* scm-valprint.c (scm_inferior_print): Remove format, deref_ref,
pretty arguments; add options.
(scm_scmlist_print): Likewise. Update.
(scm_scmval_print): Likewise.
(scm_val_print): Likewise.
(scm_value_print): Remove format, pretty arguments; add options.
Update.
* scm-lang.h (scm_value_print, scm_val_print, scm_scmval_print):
Update.
* scm-lang.c (scm_printstr): Add options argument.
* python/python-value.c: Include valprint.h.
(valpy_str): Use get_user_print_options.
* printcmd.c: Include valprint.h.
(addressprint): Don't declare.
(inspect_it): Remove.
(print_formatted): Remove format option; add options. Update.
(print_scalar_formatted): Likewise.
(print_address_demangle): Use get_user_print_options.
(do_examine): Use get_formatted_print_options.
(print_command_1): Likewise.
(output_command): Use get_formatted_print_options.
(do_one_display): Likewise.
(print_variable_value): Use get_user_print_options.
* p-valprint.c (pascal_val_print): Remove format, deref_ref,
pretty arguments; add options. Update.
(pascal_value_print): Remove format, pretty arguments; add
options. Update.
(vtblprint, objectprint): Don't declare.
(pascal_static_field_print): Remove.
(pascal_object_print_value_fields): Remove format, pretty
arguments; add options. Update.
(pascal_object_print_static_field): Likewise.
(_initialize_pascal_valprint): Use user_print_options. Update.
* p-lang.h (pascal_val_print, pascal_value_print,
pascal_printstr, pascal_object_print_value_fields): Update.
(vtblprint, static_field_print): Don't declare.
* p-lang.c (pascal_printstr): Add options argument. Update.
* objc-lang.c (objc_printstr): Add options argument. Update.
* mt-tdep.c: Include valprint.h.
(mt_registers_info): Use get_raw_print_options.
* mips-tdep.c: Include valprint.h.
(mips_print_fp_register): Use get_formatted_print_options.
(mips_print_register): Likewise.
* mi/mi-main.c: Include valprint.h.
(get_register): Use get_user_print_options.
(mi_cmd_data_evaluate_expression): Likewise.
(mi_cmd_data_read_memory): Use get_formatted_print_options.
* mi/mi-cmd-stack.c: Include valprint.h.
(list_args_or_locals): Use get_raw_print_options.
* m2-valprint.c (print_function_pointer_address): Add addressprint
argument.
(m2_print_long_set): Remove format, pretty arguments.
(m2_print_unbounded_array): Remove format, deref_ref, pretty
arguments; add options. Update.
(print_unpacked_pointer): Remove format argument; add options.
Now static. Update.
(print_variable_at_address): Remove format, deref_ref, pretty
arguments; add options. Update.
(m2_print_array_contents): Likewise.
(m2_val_print): Likewise.
* m2-lang.h (m2_val_print): Update.
* m2-lang.c (m2_printstr): Add options argument. Update.
* language.h (struct value_print_options): Declare.
(struct language_defn) <la_printstr>: Add options argument.
<la_val_print>: Remove format, deref_ref, pretty argument; add
options.
<la_value_print>: Remove format, pretty arguments; add options.
<la_print_array_index>: Likewise.
(LA_VAL_PRINT, LA_VALUE_PRINT, LA_PRINT_STRING,
LA_PRINT_ARRAY_INDEX): Update.
(default_print_array_index): Update.
* language.c (default_print_array_index): Remove format, pretty
arguments; add options. Update.
(unk_lang_printstr): Add options argument.
(unk_lang_val_print): Remove format, deref_ref, pretty arguments;
add options.
(unk_lang_value_print): Remove format, pretty arguments; add
options.
* jv-valprint.c (java_value_print): Remove format, pretty
arguments; add options. Update.
(java_print_value_fields): Likewise.
(java_val_print): Remove format, deref_ref, pretty arguments; add
options. Update.
* jv-lang.h (java_val_print, java_value_print): Declare.
* infcmd.c: Include valprint.h.
(print_return_value): Use get_raw_print_options.
(default_print_registers_info): Use get_user_print_options,
get_formatted_print_options.
(registers_info): Use get_formatted_print_options.
* gdbtypes.h (struct value_print_options): Declare.
(print_scalar_formatted): Update.
* f-valprint.c (f77_print_array_1): Remove format, deref_ref,
pretty arguments; add options. Update.
(f77_print_array): Likewise.
(f_val_print): Likewise.
* f-lang.h (f_val_print): Update.
* f-lang.c (f_printstr): Add options argument. Update.
(c_value_print): Update declaration.
* expprint.c: Include valprint.h.
(print_subexp_standard): Use get_raw_print_options,
get_user_print_options.
* eval.c: Include valprint.h.
(objectprint): Don't declare.
(evaluate_subexp_standard): Use get_user_print_options.
* cp-valprint.c (vtblprint, objectprint, static_field_print):
Remove.
(cp_print_value_fields): Remove format, pretty arguments; add
options. Update.
(cp_print_value): Likewise.
(cp_print_static_field): Likewise.
(_initialize_cp_valprint): Use user_print_options. Update.
* c-valprint.c (print_function_pointer_address): Add addressprint
argument.
(c_val_print): Remove format, deref_ref, pretty arguments; add
options. Update.
(c_value_print): Add options argument. Update.
* c-lang.h (c_val_print, c_value_print, c_printstr): Update.
(vtblprint, static_field_print): Don't declare.
(cp_print_value_fields): Update.
* c-lang.c (c_printstr): Add options argument. Update.
* breakpoint.c: Include valprint.h.
(addressprint): Don't declare.
(watchpoint_value_print): Use get_user_print_options.
(print_one_breakpoint_location): Likewise.
(breakpoint_1, print_it_catch_fork, print_it_catch_vfork, mention,
print_exception_catchpoint): Likewise.
* auxv.c (fprint_target_auxv): Don't declare addressprint. Use
get_user_print_options.
* ada-valprint.c (struct ada_val_print_args): Remove format,
deref_ref, and pretty; add options.
(print_optional_low_bound): Add options argument.
(val_print_packed_array_elements): Remove format and pretty
arguments; add options. Update.
(printstr): Add options argument. Update.
(ada_printstr): Likewise.
(ada_val_print): Remove format, deref_ref, pretty arguments; add
options argument. Update.
(ada_val_print_stub): Update.
(ada_val_print_array): Remove format, deref_ref, pretty arguments;
add options. Update.
(ada_val_print_1): Likewise.
(print_variant_part): Likewise.
(ada_value_print): Remove format, pretty arguments; add options.
Update.
(print_record): Likewise.
(print_field_values): Likewise.
* ada-lang.h (ada_val_print, ada_value_print, ada_printstr):
Update.
* ada-lang.c (ada_print_array_index): Add options argument; remove
format and pretty arguments.
(print_one_exception): Use get_user_print_options.
gdb/testsuite
* gdb.base/exprs.exp (test_expr): Add enum formatting tests.
2008-10-28 17:19:58 +00:00
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struct value_print_options;
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2014-05-20 13:30:29 +00:00
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struct xmethod_worker;
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* defs.h (HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_FLOAT_FORMAT, HOST_DOUBLE_FORMAT)
(HOST_LONG_DOUBLE_FORMAT, DOUBLEST)
(floatformat_to_doublest, floatformat_from_doublest)
(floatformat_is_negative, floatformat_is_nan)
(floatformat_mantissa, store_floating)
(extract_floating): Move declaration from here.
* doublest.h: To here. New file.
* utils.c (get_field, floatformat_to_doublest, put_field)
(ldfrexp, floatformat_from_doublest, floatformat_is_negative)
(floatformat_is_nan, floatformat_mantissa)
(FLOATFORMAT_CHAR_BIT): Move from here.
* doublest.c: To here. New file.
* findvar.c (store_floating, extract_floating): Move from here.
* doublest.c: To here.
* Makefile.in (SFILES): Add doublest.c.
(COMMON_OBS): Add doublest.o.
(doublest.o): Specify dependencies.
(doublest_h): Define.
* config/m88k/tm-m88k.h: Include "doublest.h".
* config/i960/tm-i960.h: Ditto.
* config/i386/tm-symmetry.h: Ditto.
* rs6000-tdep.c, valarith.c: Ditto.
* valprint.c, stabsread.c, sh-tdep.c: Ditto.
* ia64-tdep.c, i387-tdep.c, i386-tdep.c: Ditto.
* values.c, arm-tdep.c, arm-linux-tdep.c: Ditto.
* alpha-tdep.c, ax.h, expression.h: Ditto.
* sh-tdep.c, parse.c, top.c, value.h: Ditto.
* Makefile.in (arm-tdep.o): Add $(doublest_h).
(i386-tdep.o, i387-tdep.o, ia64-tdep.o): Ditto.
(rs6000-tdep.o, stabsread.o, valarith.o): Ditto.
(values.o, valprint.o, arm-linux-tdep.o): Ditto.
(alpha-tdep.o, ax_h, parse.o, top.o, value_h): Ditto.
(parser_defs_h): Ditto.
(expression_h): Add $(doublest_h) and $(symtab_h).
2001-08-01 18:39:27 +00:00
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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
|
|
|
|
/* Values can be partially 'optimized out' and/or 'unavailable'.
|
|
|
|
|
These are distinct states and have different string representations
|
|
|
|
|
and related error strings.
|
|
|
|
|
|
|
|
|
|
'unavailable' has a specific meaning in this context. It means the
|
|
|
|
|
value exists in the program (at the machine level), but GDB has no
|
|
|
|
|
means to get to it. Such a value is normally printed as
|
|
|
|
|
<unavailable>. Examples of how to end up with an unavailable value
|
|
|
|
|
would be:
|
|
|
|
|
|
|
|
|
|
- We're inspecting a traceframe, and the memory or registers the
|
|
|
|
|
debug information says the value lives on haven't been collected.
|
|
|
|
|
|
|
|
|
|
- We're inspecting a core dump, the memory or registers the debug
|
|
|
|
|
information says the value lives aren't present in the dump
|
|
|
|
|
(that is, we have a partial/trimmed core dump, or we don't fully
|
|
|
|
|
understand/handle the core dump's format).
|
|
|
|
|
|
|
|
|
|
- We're doing live debugging, but the debug API has no means to
|
|
|
|
|
get at where the value lives in the machine, like e.g., ptrace
|
|
|
|
|
not having access to some register or register set.
|
|
|
|
|
|
|
|
|
|
- Any other similar scenario.
|
|
|
|
|
|
|
|
|
|
OTOH, "optimized out" is about what the compiler decided to generate
|
|
|
|
|
(or not generate). A chunk of a value that was optimized out does
|
|
|
|
|
not actually exist in the program. There's no way to get at it
|
|
|
|
|
short of compiling the program differently.
|
|
|
|
|
|
|
|
|
|
A register that has not been saved in a frame is likewise considered
|
|
|
|
|
optimized out, except not-saved registers have a different string
|
|
|
|
|
representation and related error strings. E.g., we'll print them as
|
|
|
|
|
<not-saved> instead of <optimized out>, as in:
|
|
|
|
|
|
|
|
|
|
(gdb) p/x $rax
|
|
|
|
|
$1 = <not saved>
|
|
|
|
|
(gdb) info registers rax
|
|
|
|
|
rax <not saved>
|
|
|
|
|
|
|
|
|
|
If the debug info describes a variable as being in such a register,
|
|
|
|
|
we'll still print the variable as <optimized out>. IOW, <not saved>
|
|
|
|
|
is reserved for inspecting registers at the machine level.
|
|
|
|
|
|
|
|
|
|
When comparing value contents, optimized out chunks, unavailable
|
|
|
|
|
chunks, and valid contents data are all considered different. See
|
|
|
|
|
value_contents_eq for more info.
|
|
|
|
|
*/
|
|
|
|
|
|
2003-05-10 23:10:08 +00:00
|
|
|
|
/* The structure which defines the type of a value. It should never
|
|
|
|
|
be possible for a program lval value to survive over a call to the
|
|
|
|
|
inferior (i.e. to be put into the history list or an internal
|
|
|
|
|
variable). */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-02-08 05:41:10 +00:00
|
|
|
|
struct value;
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-02-08 01:59:38 +00:00
|
|
|
|
/* Values are stored in a chain, so that they can be deleted easily
|
2008-10-16 03:54:00 +00:00
|
|
|
|
over calls to the inferior. Values assigned to internal variables,
|
|
|
|
|
put into the value history or exposed to Python are taken off this
|
|
|
|
|
list. */
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
2005-02-08 01:59:38 +00:00
|
|
|
|
struct value *value_next (struct value *);
|
|
|
|
|
|
2005-02-08 05:41:10 +00:00
|
|
|
|
/* Type of the value. */
|
|
|
|
|
|
2010-06-11 15:36:10 +00:00
|
|
|
|
extern struct type *value_type (const struct value *);
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
2015-07-28 15:01:50 +00:00
|
|
|
|
/* Return the gdbarch associated with the value. */
|
|
|
|
|
|
|
|
|
|
extern struct gdbarch *get_value_arch (const struct value *value);
|
|
|
|
|
|
2005-02-07 Andrew Cagney <cagney@gnu.org>
* value.h (deprecated_set_value_type): Declare.
* value.c (deprecated_set_value_type): Define.
* hpacc-abi.c, gnu-v2-abi.c, cp-valprint.c: Update.
* c-valprint.c, jv-lang.c, objc-lang.c, ada-lang.c: Update.
* infcall.c, printcmd.c, valops.c, eval.c, p-exp.y: Update.
* ax-gdb.c, tracepoint.c: Update.
2005-02-07 23:51:03 +00:00
|
|
|
|
/* This is being used to change the type of an existing value, that
|
|
|
|
|
code should instead be creating a new value with the changed type
|
|
|
|
|
(but possibly shared content). */
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
2005-02-07 Andrew Cagney <cagney@gnu.org>
* value.h (deprecated_set_value_type): Declare.
* value.c (deprecated_set_value_type): Define.
* hpacc-abi.c, gnu-v2-abi.c, cp-valprint.c: Update.
* c-valprint.c, jv-lang.c, objc-lang.c, ada-lang.c: Update.
* infcall.c, printcmd.c, valops.c, eval.c, p-exp.y: Update.
* ax-gdb.c, tracepoint.c: Update.
2005-02-07 23:51:03 +00:00
|
|
|
|
extern void deprecated_set_value_type (struct value *value,
|
|
|
|
|
struct type *type);
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
|
|
|
|
/* Only used for bitfields; number of bits contained in them. */
|
|
|
|
|
|
2010-06-11 15:36:10 +00:00
|
|
|
|
extern int value_bitsize (const struct value *);
|
2005-02-08 04:57:03 +00:00
|
|
|
|
extern void set_value_bitsize (struct value *, int bit);
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
|
|
|
|
/* Only used for bitfields; position of start of field. For
|
2008-01-18 17:07:40 +00:00
|
|
|
|
gdbarch_bits_big_endian=0 targets, it is the position of the LSB. For
|
|
|
|
|
gdbarch_bits_big_endian=1 targets, it is the position of the MSB. */
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
2010-06-11 15:36:10 +00:00
|
|
|
|
extern int value_bitpos (const struct value *);
|
2005-02-08 04:57:03 +00:00
|
|
|
|
extern void set_value_bitpos (struct value *, int bit);
|
2005-02-08 02:29:18 +00:00
|
|
|
|
|
2009-07-21 18:15:32 +00:00
|
|
|
|
/* Only used for bitfields; the containing value. This allows a
|
|
|
|
|
single read from the target when displaying multiple
|
|
|
|
|
bitfields. */
|
|
|
|
|
|
|
|
|
|
struct value *value_parent (struct value *);
|
[Ada] Crash when trying to set value of packed array element
Consider the following declaration:
type Small is new Integer range 0 .. 2 ** 4 - 1;
type Simple_Array is array (1 .. 4) of Small;
pragma Pack (Simple_Array);
SA : Simple_Array := (1, 2, 3, 4);
Trying to change the value of one of the elements in the packed array
causes the debugger to crash:
(gdb) set sa(3) := 9
[1] 4880 segmentation fault gdb -q foo
The circumstances leading to the crash are as follow:
. ada_evaluate_subexp creates a value corresponding to "sa(3)".
. ada_evaluate_subexp then tries to assign 9 to this value, and
for this calls value_assign (via ada_value_assign).
. Because the array is packed, the destination value is 3 bits long,
and as a result, value_assign uses the parent to determine that
element byte address and offset:
| if (value_bitsize (toval))
| {
| struct value *parent = value_parent (toval);
|
| changed_addr = value_address (parent) + value_offset (toval);
The destination value (corresponding to "sa(3)") was incorrectly created
by ada-lang.c:ada_value_primitive_packed_val, because the "parent" was
left as NULL. So, when we try to dereference it to get the parent address,
GDB crashed.
The first part of the fix therefore consists in setting that field.
This required the addition of a new "setter" in value.[hc]. It fixes
the crash, but is still not sufficient for the assignment to actually
work.
The second part of the problem came from the fact that value_assign
seems to expect the "child"'s address to be equal to the parent's address,
with the difference being the offset. Unfortunately, this requirement was
not followed by ada_value_primitive_packed_val, so the second part of
the fix consisted in fixing that.
Still, this was not sufficient, because it caused a regression when
trying to perform an aggregate assignment of a packed array of packed
record. The key element here is the nesting of packed entities.
Looking at the way ada_value_primitive_packed_val creates the value
of each sub-component, one can see that the value's offset is set
to the offset compared to the start of the parent. This was meant to
match what value_primitive_field does as well.
So, with our array of records, if the record offset was 2, and if
the field we're interested in that record is at offset 1, the record
value's offset would be set to 2, and the field value's offset would
be set to 1. But the address for both values would be left to the
array's address. This is where things start breaking down, because
the value_address function for our field value would return the
address of the array + 1, instead of + 3.
This is what causes the final issue, here, because ada-lang.c's
value_assign_to_component needs to compute the offset of the
subcomponent compared to the top-level aggregate's start address
(the array in our case). And it does so by subtracting the array's
address from the sub-component's address. When you have two levels
of packed components, and the mid-level component is at an offset of
the top-level component, things didn't work, because the component's
address was miscomputed (the parent's offset is missing).
The fix consists is fixing value_address to match the work done by
value_primitive_field (where we ignore the parent's offset).
gdb/ChangeLog:
* value.h (set_value_parent): Add declaration.
* value.c (set_value_parent): New function.
(value_address): If VALUE->PARENT is not NULL, then use it as
the base address instead of VALUE->LOCATION.address.
* ada-lang.c (ada_value_primitive_packed_val): Keep V's address
the same as OBJ's address. Adjust V's offset accordingly.
Set V's parent.
gdb/testsuite/ChangeLog:
* gdb.ada/set_pckd_arr_elt: New testcase.
2012-03-16 17:55:45 +00:00
|
|
|
|
extern void set_value_parent (struct value *value, struct value *parent);
|
2009-07-21 18:15:32 +00:00
|
|
|
|
|
2005-02-08 05:41:10 +00:00
|
|
|
|
/* Describes offset of a value within lval of a structure in bytes.
|
|
|
|
|
If lval == lval_memory, this is an offset to the address. If lval
|
|
|
|
|
== lval_register, this is a further offset from location.address
|
|
|
|
|
within the registers structure. Note also the member
|
|
|
|
|
embedded_offset below. */
|
|
|
|
|
|
2010-06-11 15:36:10 +00:00
|
|
|
|
extern int value_offset (const struct value *);
|
2005-02-08 02:29:18 +00:00
|
|
|
|
extern void set_value_offset (struct value *, int offset);
|
2004-11-12 Andrew Cagney <cagney@gnu.org>
* value.h (VALUE_TYPE, VALUE_NEXT, VALUE_OFFSET, VALUE_BITSIZE)
(VALUE_BITPOS): Delete.
(value_type, value_offset, value_bitsize, value_bitpos): Declare.
* value.c (value_type, value_offset, value_bitpos)
(value_bitsize): New functions. Update references.
* arm-tdep.c, gnu-v3-abi.c, hpacc-abi.c, gnu-v2-abi.c: Update.
* f-valprint.c, cp-valprint.c, c-valprint.c: Update.
* ada-valprint.c, typeprint.c, scm-valprint.c, scm-exp.c: Update.
* p-valprint.c, jv-valprint.c, jv-lang.c, varobj.c: Update.
* objc-lang.c, ada-lang.c, std-regs.c, stack.c: Update.
* infcall.c, linespec.c, printcmd.c, valarith.c: Update.
* valops.c, eval.c, findvar.c, breakpoint.c: Update.
* tracepoint.c, ax-gdb.c, mi/mi-main.c, cli/cli-dump.c:
* rs6000-tdep.c, ppc-sysv-tdep.c: Update.
2004-11-12 21:45:08 +00:00
|
|
|
|
|
2005-02-08 00:25:31 +00:00
|
|
|
|
/* The comment from "struct value" reads: ``Is it modifiable? Only
|
|
|
|
|
relevant if lval != not_lval.''. Shouldn't the value instead be
|
|
|
|
|
not_lval and be done with it? */
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
2005-02-08 00:25:31 +00:00
|
|
|
|
extern int deprecated_value_modifiable (struct value *value);
|
|
|
|
|
|
2005-02-08 05:41:10 +00:00
|
|
|
|
/* If a value represents a C++ object, then the `type' field gives the
|
|
|
|
|
object's compile-time type. If the object actually belongs to some
|
|
|
|
|
class derived from `type', perhaps with other base classes and
|
|
|
|
|
additional members, then `type' is just a subobject of the real
|
|
|
|
|
thing, and the full object is probably larger than `type' would
|
|
|
|
|
suggest.
|
|
|
|
|
|
|
|
|
|
If `type' is a dynamic class (i.e. one with a vtable), then GDB can
|
|
|
|
|
actually determine the object's run-time type by looking at the
|
|
|
|
|
run-time type information in the vtable. When this information is
|
|
|
|
|
available, we may elect to read in the entire object, for several
|
|
|
|
|
reasons:
|
|
|
|
|
|
|
|
|
|
- When printing the value, the user would probably rather see the
|
|
|
|
|
full object, not just the limited portion apparent from the
|
|
|
|
|
compile-time type.
|
|
|
|
|
|
|
|
|
|
- If `type' has virtual base classes, then even printing `type'
|
|
|
|
|
alone may require reaching outside the `type' portion of the
|
|
|
|
|
object to wherever the virtual base class has been stored.
|
|
|
|
|
|
|
|
|
|
When we store the entire object, `enclosing_type' is the run-time
|
|
|
|
|
type -- the complete object -- and `embedded_offset' is the offset
|
|
|
|
|
of `type' within that larger type, in bytes. The value_contents()
|
|
|
|
|
macro takes `embedded_offset' into account, so most GDB code
|
|
|
|
|
continues to see the `type' portion of the value, just as the
|
|
|
|
|
inferior would.
|
|
|
|
|
|
|
|
|
|
If `type' is a pointer to an object, then `enclosing_type' is a
|
|
|
|
|
pointer to the object's run-time type, and `pointed_to_offset' is
|
|
|
|
|
the offset in bytes from the full object to the pointed-to object
|
|
|
|
|
-- that is, the value `embedded_offset' would have if we followed
|
|
|
|
|
the pointer and fetched the complete object. (I don't really see
|
|
|
|
|
the point. Why not just determine the run-time type when you
|
|
|
|
|
indirect, and avoid the special case? The contents don't matter
|
|
|
|
|
until you indirect anyway.)
|
|
|
|
|
|
|
|
|
|
If we're not doing anything fancy, `enclosing_type' is equal to
|
|
|
|
|
`type', and `embedded_offset' is zero, so everything works
|
|
|
|
|
normally. */
|
|
|
|
|
|
2005-02-02 20:31:35 +00:00
|
|
|
|
extern struct type *value_enclosing_type (struct value *);
|
2010-11-10 17:47:23 +00:00
|
|
|
|
extern void set_value_enclosing_type (struct value *val,
|
|
|
|
|
struct type *new_type);
|
|
|
|
|
|
2012-04-14 12:18:50 +00:00
|
|
|
|
/* Returns value_type or value_enclosing_type depending on
|
|
|
|
|
value_print_options.objectprint.
|
|
|
|
|
|
|
|
|
|
If RESOLVE_SIMPLE_TYPES is 0 the enclosing type will be resolved
|
|
|
|
|
only for pointers and references, else it will be returned
|
|
|
|
|
for all the types (e.g. structures). This option is useful
|
|
|
|
|
to prevent retrieving enclosing type for the base classes fields.
|
|
|
|
|
|
|
|
|
|
REAL_TYPE_FOUND is used to inform whether the real type was found
|
|
|
|
|
(or just static type was used). The NULL may be passed if it is not
|
|
|
|
|
necessary. */
|
|
|
|
|
|
|
|
|
|
extern struct type *value_actual_type (struct value *value,
|
|
|
|
|
int resolve_simple_types,
|
|
|
|
|
int *real_type_found);
|
|
|
|
|
|
2005-02-08 05:41:10 +00:00
|
|
|
|
extern int value_pointed_to_offset (struct value *value);
|
|
|
|
|
extern void set_value_pointed_to_offset (struct value *value, int val);
|
|
|
|
|
extern int value_embedded_offset (struct value *value);
|
|
|
|
|
extern void set_value_embedded_offset (struct value *value, int val);
|
|
|
|
|
|
2009-02-06 22:50:52 +00:00
|
|
|
|
/* For lval_computed values, this structure holds functions used to
|
|
|
|
|
retrieve and set the value (or portions of the value).
|
|
|
|
|
|
|
|
|
|
For each function, 'V' is the 'this' pointer: an lval_funcs
|
|
|
|
|
function F may always assume that the V it receives is an
|
|
|
|
|
lval_computed value, and has F in the appropriate slot of its
|
|
|
|
|
lval_funcs structure. */
|
|
|
|
|
|
|
|
|
|
struct lval_funcs
|
|
|
|
|
{
|
|
|
|
|
/* Fill in VALUE's contents. This is used to "un-lazy" values. If
|
|
|
|
|
a problem arises in obtaining VALUE's bits, this function should
|
2011-10-09 19:36:06 +00:00
|
|
|
|
call 'error'. If it is NULL value_fetch_lazy on "un-lazy"
|
|
|
|
|
non-optimized-out value is an internal error. */
|
2009-02-06 22:50:52 +00:00
|
|
|
|
void (*read) (struct value *v);
|
|
|
|
|
|
|
|
|
|
/* Handle an assignment TOVAL = FROMVAL by writing the value of
|
|
|
|
|
FROMVAL to TOVAL's location. The contents of TOVAL have not yet
|
|
|
|
|
been updated. If a problem arises in doing so, this function
|
2011-10-09 19:36:06 +00:00
|
|
|
|
should call 'error'. If it is NULL such TOVAL assignment is an error as
|
|
|
|
|
TOVAL is not considered as an lvalue. */
|
2009-02-06 22:50:52 +00:00
|
|
|
|
void (*write) (struct value *toval, struct value *fromval);
|
|
|
|
|
|
2010-11-29 21:18:16 +00:00
|
|
|
|
/* If non-NULL, this is used to implement pointer indirection for
|
|
|
|
|
this value. This method may return NULL, in which case value_ind
|
|
|
|
|
will fall back to ordinary indirection. */
|
|
|
|
|
struct value *(*indirect) (struct value *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 ®param@entry)
(entry_reference: p regcopy, entry_reference: p nodataparam)
(entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
|
|
|
|
/* If non-NULL, this is used to implement reference resolving for
|
|
|
|
|
this value. This method may return NULL, in which case coerce_ref
|
|
|
|
|
will fall back to ordinary references resolving. */
|
|
|
|
|
struct value *(*coerce_ref) (const struct value *value);
|
|
|
|
|
|
2010-11-29 21:18:16 +00:00
|
|
|
|
/* If non-NULL, this is used to determine whether the indicated bits
|
|
|
|
|
of VALUE are a synthetic pointer. */
|
|
|
|
|
int (*check_synthetic_pointer) (const struct value *value,
|
|
|
|
|
int offset, int length);
|
|
|
|
|
|
2009-02-06 22:50:52 +00:00
|
|
|
|
/* Return a duplicate of VALUE's closure, for use in a new value.
|
|
|
|
|
This may simply return the same closure, if VALUE's is
|
|
|
|
|
reference-counted or statically allocated.
|
|
|
|
|
|
|
|
|
|
This may be NULL, in which case VALUE's closure is re-used in the
|
|
|
|
|
new value. */
|
2010-06-11 15:36:10 +00:00
|
|
|
|
void *(*copy_closure) (const struct value *v);
|
2009-02-06 22:50:52 +00:00
|
|
|
|
|
|
|
|
|
/* Drop VALUE's reference to its closure. Maybe this frees the
|
|
|
|
|
closure; maybe this decrements a reference count; maybe the
|
|
|
|
|
closure is statically allocated and this does nothing.
|
|
|
|
|
|
|
|
|
|
This may be NULL, in which case no action is taken to free
|
|
|
|
|
VALUE's closure. */
|
|
|
|
|
void (*free_closure) (struct value *v);
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
/* Create a computed lvalue, with type TYPE, function pointers FUNCS,
|
|
|
|
|
and closure CLOSURE. */
|
|
|
|
|
|
|
|
|
|
extern struct value *allocate_computed_value (struct type *type,
|
2011-07-14 15:00:20 +00:00
|
|
|
|
const struct lval_funcs *funcs,
|
|
|
|
|
void *closure);
|
2009-02-06 22:50:52 +00:00
|
|
|
|
|
2012-04-03 14:39:55 +00:00
|
|
|
|
/* Helper function to check the validity of some bits of a value.
|
|
|
|
|
|
|
|
|
|
If TYPE represents some aggregate type (e.g., a structure), return 1.
|
|
|
|
|
|
|
|
|
|
Otherwise, any of the bytes starting at OFFSET and extending for
|
|
|
|
|
TYPE_LENGTH(TYPE) bytes are invalid, print a message to STREAM and
|
|
|
|
|
return 0. The checking is done using FUNCS.
|
|
|
|
|
|
|
|
|
|
Otherwise, return 1. */
|
|
|
|
|
|
|
|
|
|
extern int valprint_check_validity (struct ui_file *stream, struct type *type,
|
|
|
|
|
int embedded_offset,
|
|
|
|
|
const struct value *val);
|
|
|
|
|
|
2011-07-12 21:16:48 +00:00
|
|
|
|
extern struct value *allocate_optimized_out_value (struct type *type);
|
|
|
|
|
|
2009-02-06 22:50:52 +00:00
|
|
|
|
/* If VALUE is lval_computed, return its lval_funcs structure. */
|
|
|
|
|
|
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 ®param@entry)
(entry_reference: p regcopy, entry_reference: p nodataparam)
(entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
|
|
|
|
extern const struct lval_funcs *value_computed_funcs (const struct value *);
|
2009-02-06 22:50:52 +00:00
|
|
|
|
|
|
|
|
|
/* If VALUE is lval_computed, return its closure. The meaning of the
|
|
|
|
|
returned value depends on the functions VALUE uses. */
|
|
|
|
|
|
2010-06-11 15:36:10 +00:00
|
|
|
|
extern void *value_computed_closure (const struct value *value);
|
2009-02-06 22:50:52 +00:00
|
|
|
|
|
2005-02-08 05:41:10 +00:00
|
|
|
|
/* If zero, contents of this value are in the contents field. If
|
2008-04-30 21:13:49 +00:00
|
|
|
|
nonzero, contents are in inferior. If the lval field is lval_memory,
|
|
|
|
|
the contents are in inferior memory at location.address plus offset.
|
|
|
|
|
The lval field may also be lval_register.
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
|
|
|
|
WARNING: This field is used by the code which handles watchpoints
|
|
|
|
|
(see breakpoint.c) to decide whether a particular value can be
|
|
|
|
|
watched by hardware watchpoints. If the lazy flag is set for some
|
|
|
|
|
member of a value chain, it is assumed that this member of the
|
|
|
|
|
chain doesn't need to be watched as part of watching the value
|
|
|
|
|
itself. This is how GDB avoids watching the entire struct or array
|
|
|
|
|
when the user wants to watch a single struct member or array
|
|
|
|
|
element. If you ever change the way lazy flag is set and reset, be
|
|
|
|
|
sure to consider this use as well! */
|
|
|
|
|
|
2005-02-02 22:34:36 +00:00
|
|
|
|
extern int value_lazy (struct value *);
|
2005-02-07 15:04:43 +00:00
|
|
|
|
extern void set_value_lazy (struct value *value, int val);
|
2003-05-10 23:10:08 +00:00
|
|
|
|
|
2009-08-31 20:18:46 +00:00
|
|
|
|
extern int value_stack (struct value *);
|
|
|
|
|
extern void set_value_stack (struct value *value, int val);
|
|
|
|
|
|
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
|
|
|
|
/* Throw an error complaining that the value has been optimized
|
|
|
|
|
out. */
|
|
|
|
|
|
|
|
|
|
extern void error_value_optimized_out (void);
|
|
|
|
|
|
2005-02-06 Andrew Cagney <cagney@gnu.org>
* value.c (value_contents, value_contents_writeable): New
functions.
* value.h (VALUE_CONTENTS): Delete macro.
(value_contents, value_contents_writeable): Declare.
* xstormy16-tdep.c, value.c, valops.c, valarith.c: Update.
* stack.c, sparc-tdep.c, sparc64-tdep.c, sh-tdep.c: Update.
* sh64-tdep.c, scm-valprint.c, scm-exp.c, s390-tdep.c: Update.
* rs6000-tdep.c, p-valprint.c, printcmd.c: Update.
* ppc-sysv-tdep.c, mips-tdep.c, mi/mi-main.c: Update.
* m88k-tdep.c, m68hc11-tdep.c, m32r-tdep.c: Update.
* jv-valprint.c, ia64-tdep.c, hppa-tdep.c: Update.
* hpacc-abi.c, f-valprint.c, frv-tdep.c, eval.c: Update.
* c-valprint.c, cris-tdep.c, cp-valprint.c: Update.
* cli/cli-dump.c, breakpoint.c, avr-tdep.c, arm-tdep.c: Update.
* arm-linux-tdep.c, amd64-tdep.c, alpha-tdep.c: Update.
* ada-valprint.c, ada-lang.c: Update.
2005-02-07 00:09:56 +00:00
|
|
|
|
/* value_contents() and value_contents_raw() both return the address
|
|
|
|
|
of the gdb buffer used to hold a copy of the contents of the lval.
|
|
|
|
|
value_contents() is used when the contents of the buffer are needed
|
2003-05-10 23:10:08 +00:00
|
|
|
|
-- it uses value_fetch_lazy() to load the buffer from the process
|
2005-02-06 Andrew Cagney <cagney@gnu.org>
* value.c (value_contents, value_contents_writeable): New
functions.
* value.h (VALUE_CONTENTS): Delete macro.
(value_contents, value_contents_writeable): Declare.
* xstormy16-tdep.c, value.c, valops.c, valarith.c: Update.
* stack.c, sparc-tdep.c, sparc64-tdep.c, sh-tdep.c: Update.
* sh64-tdep.c, scm-valprint.c, scm-exp.c, s390-tdep.c: Update.
* rs6000-tdep.c, p-valprint.c, printcmd.c: Update.
* ppc-sysv-tdep.c, mips-tdep.c, mi/mi-main.c: Update.
* m88k-tdep.c, m68hc11-tdep.c, m32r-tdep.c: Update.
* jv-valprint.c, ia64-tdep.c, hppa-tdep.c: Update.
* hpacc-abi.c, f-valprint.c, frv-tdep.c, eval.c: Update.
* c-valprint.c, cris-tdep.c, cp-valprint.c: Update.
* cli/cli-dump.c, breakpoint.c, avr-tdep.c, arm-tdep.c: Update.
* arm-linux-tdep.c, amd64-tdep.c, alpha-tdep.c: Update.
* ada-valprint.c, ada-lang.c: Update.
2005-02-07 00:09:56 +00:00
|
|
|
|
being debugged if it hasn't already been loaded
|
|
|
|
|
(value_contents_writeable() is used when a writeable but fetched
|
|
|
|
|
buffer is required).. value_contents_raw() is used when data is
|
|
|
|
|
being stored into the buffer, or when it is certain that the
|
|
|
|
|
contents of the buffer are valid.
|
2003-05-10 23:10:08 +00:00
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
Note: The contents pointer is adjusted by the offset required to
|
|
|
|
|
get to the real subobject, if the value happens to represent
|
2003-05-10 23:10:08 +00:00
|
|
|
|
something embedded in a larger run-time object. */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-05-09 Andrew Cagney <cagney@gnu.org>
Use gdb_byte in preference to bfd_byte.
* gdbarch.sh: Update.
* gdbarch.h, gdbarch.c: Re-generate.
* ada-lang.c, ada-lang.h, ada-valprint.c, arch-utils.c: Update.
* c-lang.c, c-lang.h, c-valprint.c, cp-valprint.c: Update.
* f-lang.c, f-lang.h, f-valprint.c, gdbcore.h, jv-lang.h: Update.
* jv-valprint.c, language.c, language.h, m2-lang.c: Update.
* m2-lang.h, m2-valprint.c, objc-lang.c, p-lang.c: Update.
* p-lang.h, p-valprint.c, regcache.c, scm-lang.c: Update.
* scm-lang.h, scm-valprint.c, target.c, target.h: Update.
* tramp-frame.c, valarith.c, valops.c, valprint.c: Update.
* valprint.h, value.c, value.h: Update.
2005-05-09 21:20:35 +00:00
|
|
|
|
extern gdb_byte *value_contents_raw (struct value *);
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
|
|
|
|
/* Actual contents of the value. For use of this value; setting it
|
|
|
|
|
uses the stuff above. Not valid if lazy is nonzero. Target
|
|
|
|
|
byte-order. We force it to be aligned properly for any possible
|
|
|
|
|
value. Note that a value therefore extends beyond what is
|
|
|
|
|
declared here. */
|
|
|
|
|
|
2005-05-09 Andrew Cagney <cagney@gnu.org>
Use gdb_byte in preference to bfd_byte.
* gdbarch.sh: Update.
* gdbarch.h, gdbarch.c: Re-generate.
* ada-lang.c, ada-lang.h, ada-valprint.c, arch-utils.c: Update.
* c-lang.c, c-lang.h, c-valprint.c, cp-valprint.c: Update.
* f-lang.c, f-lang.h, f-valprint.c, gdbcore.h, jv-lang.h: Update.
* jv-valprint.c, language.c, language.h, m2-lang.c: Update.
* m2-lang.h, m2-valprint.c, objc-lang.c, p-lang.c: Update.
* p-lang.h, p-valprint.c, regcache.c, scm-lang.c: Update.
* scm-lang.h, scm-valprint.c, target.c, target.h: Update.
* tramp-frame.c, valarith.c, valops.c, valprint.c: Update.
* valprint.h, value.c, value.h: Update.
2005-05-09 21:20:35 +00:00
|
|
|
|
extern const gdb_byte *value_contents (struct value *);
|
|
|
|
|
extern gdb_byte *value_contents_writeable (struct value *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
|
|
/* The ALL variants of the above two macros do not adjust the returned
|
2003-05-10 23:10:08 +00:00
|
|
|
|
pointer by the embedded_offset value. */
|
1999-07-07 20:19:36 +00:00
|
|
|
|
|
2005-05-09 Andrew Cagney <cagney@gnu.org>
Use gdb_byte in preference to bfd_byte.
* gdbarch.sh: Update.
* gdbarch.h, gdbarch.c: Re-generate.
* ada-lang.c, ada-lang.h, ada-valprint.c, arch-utils.c: Update.
* c-lang.c, c-lang.h, c-valprint.c, cp-valprint.c: Update.
* f-lang.c, f-lang.h, f-valprint.c, gdbcore.h, jv-lang.h: Update.
* jv-valprint.c, language.c, language.h, m2-lang.c: Update.
* m2-lang.h, m2-valprint.c, objc-lang.c, p-lang.c: Update.
* p-lang.h, p-valprint.c, regcache.c, scm-lang.c: Update.
* scm-lang.h, scm-valprint.c, target.c, target.h: Update.
* tramp-frame.c, valarith.c, valops.c, valprint.c: Update.
* valprint.h, value.c, value.h: Update.
2005-05-09 21:20:35 +00:00
|
|
|
|
extern gdb_byte *value_contents_all_raw (struct value *);
|
|
|
|
|
extern const gdb_byte *value_contents_all (struct value *);
|
1999-07-07 20:19:36 +00:00
|
|
|
|
|
2010-06-11 15:36:10 +00:00
|
|
|
|
/* Like value_contents_all, but does not require that the returned
|
|
|
|
|
bits be valid. This should only be used in situations where you
|
|
|
|
|
plan to check the validity manually. */
|
|
|
|
|
extern const gdb_byte *value_contents_for_printing (struct value *value);
|
|
|
|
|
|
2011-01-25 15:18:36 +00:00
|
|
|
|
/* Like value_contents_for_printing, but accepts a constant value
|
|
|
|
|
pointer. Unlike value_contents_for_printing however, the pointed
|
|
|
|
|
value must _not_ be lazy. */
|
|
|
|
|
extern const gdb_byte *
|
|
|
|
|
value_contents_for_printing_const (const struct value *value);
|
|
|
|
|
|
2015-07-06 17:04:11 +00:00
|
|
|
|
extern void value_fetch_lazy (struct value *val);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-02-08 05:41:10 +00:00
|
|
|
|
/* If nonzero, this is the value of a variable which does not actually
|
ada-lang.c:coerce_unspec_val_to_type: Preserve laziness.
ada-lang.c:coerce_unspec_val_to_type does:
if (value_lazy (val)
|| TYPE_LENGTH (type) > TYPE_LENGTH (value_type (val)))
result = allocate_value_lazy (type);
else
{
result = allocate_value (type);
memcpy (value_contents_raw (result), value_contents (val),
TYPE_LENGTH (type));
}
set_value_component_location (result, val);
set_value_bitsize (result, value_bitsize (val));
set_value_bitpos (result, value_bitpos (val));
set_value_address (result, value_address (val));
set_value_optimized_out (result, value_optimized_out (val));
Notice that before value_optimized_out was made to auto-fetch lazy
values, VAL would end up still lazy if it was lazy on entry. It's not
really a problem here if VAL is lazy, and VAL->optimized_out is 0,
because RESULT is also left lazy. IOW, this just wants to copy the
VAL->optimized_out flag to RESULT->optimized_out, nothing else.
As a side-effect of the change in value_optimized_out, the following
testcase now regresses. Consider:
type Small is range -64 .. 63;
for Small'Size use 7;
type Arr is array (1..10) of Small;
pragma Pack (Arr);
type Arr_Ptr is access Arr;
An_Arr_Ptr : Arr_Ptr := new Arr'(10, 20, 30, 40, 50, 60, 62, 63,
-23, 42);
Trying to print one element of An_Arr_Ptr yields:
(gdb) p an_arr_ptr(3)
Cannot access memory at address 0x0
The patch adds the value_optimized_out_const function for that,
allowing us to avoid trying to fetch a value at a dummy address.
(I found this out by grepping for set_value_optimized_out and trying
to convert the uses I found to instead allocate the value with
allocate_optimized_out_value.)
Tested on x86_64 Fedora 17.
gdb/
2013-07-09 Pedro Alves <palves@redhat.com>
* ada-lang.c (coerce_unspec_val_to_type): Use
value_optimized_out_const.
* value.c (value_optimized_out_const): New function.
* value.h (value_optimized_out_const): New declaration.
2013-07-10 00:34:38 +00:00
|
|
|
|
exist in the program, at least partially. If the value is lazy,
|
|
|
|
|
this may fetch it now. */
|
2005-02-07 04:50:28 +00:00
|
|
|
|
extern int value_optimized_out (struct value *value);
|
1999-04-16 01:35:26 +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
|
|
|
|
/* Given a value, return true if any of the contents bits starting at
|
|
|
|
|
OFFSET and extending for LENGTH bits is optimized out, false
|
|
|
|
|
otherwise. */
|
|
|
|
|
|
|
|
|
|
extern int value_bits_any_optimized_out (const struct value *value,
|
|
|
|
|
int bit_offset, int bit_length);
|
|
|
|
|
|
|
|
|
|
/* Like value_optimized_out, but return true iff the whole value is
|
|
|
|
|
optimized out. */
|
|
|
|
|
extern int value_entirely_optimized_out (struct value *value);
|
|
|
|
|
|
|
|
|
|
/* Mark VALUE's content bytes starting at OFFSET and extending for
|
|
|
|
|
LENGTH bytes as optimized out. */
|
|
|
|
|
|
|
|
|
|
extern void mark_value_bytes_optimized_out (struct value *value,
|
|
|
|
|
int offset, int length);
|
|
|
|
|
|
|
|
|
|
/* Mark VALUE's content bits starting at OFFSET and extending for
|
|
|
|
|
LENGTH bits as optimized out. */
|
ada-lang.c:coerce_unspec_val_to_type: Preserve laziness.
ada-lang.c:coerce_unspec_val_to_type does:
if (value_lazy (val)
|| TYPE_LENGTH (type) > TYPE_LENGTH (value_type (val)))
result = allocate_value_lazy (type);
else
{
result = allocate_value (type);
memcpy (value_contents_raw (result), value_contents (val),
TYPE_LENGTH (type));
}
set_value_component_location (result, val);
set_value_bitsize (result, value_bitsize (val));
set_value_bitpos (result, value_bitpos (val));
set_value_address (result, value_address (val));
set_value_optimized_out (result, value_optimized_out (val));
Notice that before value_optimized_out was made to auto-fetch lazy
values, VAL would end up still lazy if it was lazy on entry. It's not
really a problem here if VAL is lazy, and VAL->optimized_out is 0,
because RESULT is also left lazy. IOW, this just wants to copy the
VAL->optimized_out flag to RESULT->optimized_out, nothing else.
As a side-effect of the change in value_optimized_out, the following
testcase now regresses. Consider:
type Small is range -64 .. 63;
for Small'Size use 7;
type Arr is array (1..10) of Small;
pragma Pack (Arr);
type Arr_Ptr is access Arr;
An_Arr_Ptr : Arr_Ptr := new Arr'(10, 20, 30, 40, 50, 60, 62, 63,
-23, 42);
Trying to print one element of An_Arr_Ptr yields:
(gdb) p an_arr_ptr(3)
Cannot access memory at address 0x0
The patch adds the value_optimized_out_const function for that,
allowing us to avoid trying to fetch a value at a dummy address.
(I found this out by grepping for set_value_optimized_out and trying
to convert the uses I found to instead allocate the value with
allocate_optimized_out_value.)
Tested on x86_64 Fedora 17.
gdb/
2013-07-09 Pedro Alves <palves@redhat.com>
* ada-lang.c (coerce_unspec_val_to_type): Use
value_optimized_out_const.
* value.c (value_optimized_out_const): New function.
* value.h (value_optimized_out_const): New declaration.
2013-07-10 00:34:38 +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
|
|
|
|
extern void mark_value_bits_optimized_out (struct value *value,
|
|
|
|
|
int offset, int length);
|
2010-06-11 15:36:10 +00:00
|
|
|
|
|
2007-05-18 19:45:19 +00:00
|
|
|
|
/* Set or return field indicating whether a variable is initialized or
|
2011-01-12 01:23:29 +00:00
|
|
|
|
not, based on debugging information supplied by the compiler.
|
2007-05-18 19:45:19 +00:00
|
|
|
|
1 = initialized; 0 = uninitialized. */
|
|
|
|
|
extern int value_initialized (struct value *);
|
|
|
|
|
extern void set_value_initialized (struct value *, int);
|
|
|
|
|
|
2009-01-13 10:34:31 +00:00
|
|
|
|
/* Set COMPONENT's location as appropriate for a component of WHOLE
|
|
|
|
|
--- regardless of what kind of lvalue WHOLE is. */
|
|
|
|
|
extern void set_value_component_location (struct value *component,
|
2010-06-11 15:36:10 +00:00
|
|
|
|
const struct value *whole);
|
2009-01-13 10:34:31 +00:00
|
|
|
|
|
2005-02-07 21:42:36 +00:00
|
|
|
|
/* While the following fields are per- VALUE .CONTENT .PIECE (i.e., a
|
|
|
|
|
single value might have multiple LVALs), this hacked interface is
|
|
|
|
|
limited to just the first PIECE. Expect further change. */
|
2005-02-08 05:41:10 +00:00
|
|
|
|
/* Type of value; either not an lval, or one of the various different
|
|
|
|
|
possible kinds of lval. */
|
2005-02-07 21:42:36 +00:00
|
|
|
|
extern enum lval_type *deprecated_value_lval_hack (struct value *);
|
|
|
|
|
#define VALUE_LVAL(val) (*deprecated_value_lval_hack (val))
|
2005-02-08 05:41:10 +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 ®param@entry)
(entry_reference: p regcopy, entry_reference: p nodataparam)
(entry_reference: p nodataparam@entry): New tests.
2011-10-09 19:43:41 +00:00
|
|
|
|
/* Like VALUE_LVAL, except the parameter can be const. */
|
|
|
|
|
extern enum lval_type value_lval_const (const struct value *value);
|
|
|
|
|
|
2009-05-28 00:53:52 +00:00
|
|
|
|
/* If lval == lval_memory, return the address in the inferior. If
|
|
|
|
|
lval == lval_register, return the byte offset into the registers
|
|
|
|
|
structure. Otherwise, return 0. The returned address
|
|
|
|
|
includes the offset, if any. */
|
2011-01-25 15:18:36 +00:00
|
|
|
|
extern CORE_ADDR value_address (const struct value *);
|
2009-05-28 00:53:52 +00:00
|
|
|
|
|
|
|
|
|
/* Like value_address, except the result does not include value's
|
|
|
|
|
offset. */
|
|
|
|
|
extern CORE_ADDR value_raw_address (struct value *);
|
|
|
|
|
|
|
|
|
|
/* Set the address of a value. */
|
|
|
|
|
extern void set_value_address (struct value *, CORE_ADDR);
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
|
|
|
|
/* Pointer to internal variable. */
|
2005-02-07 21:42:36 +00:00
|
|
|
|
extern struct internalvar **deprecated_value_internalvar_hack (struct value *);
|
|
|
|
|
#define VALUE_INTERNALVAR(val) (*deprecated_value_internalvar_hack (val))
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
|
|
|
|
/* Frame register value is relative to. This will be described in the
|
|
|
|
|
lval enum above as "lval_register". */
|
2005-02-07 21:42:36 +00:00
|
|
|
|
extern struct frame_id *deprecated_value_frame_id_hack (struct value *);
|
|
|
|
|
#define VALUE_FRAME_ID(val) (*deprecated_value_frame_id_hack (val))
|
2005-02-08 05:41:10 +00:00
|
|
|
|
|
|
|
|
|
/* Register number if the value is from a register. */
|
2005-02-07 21:42:36 +00:00
|
|
|
|
extern short *deprecated_value_regnum_hack (struct value *);
|
|
|
|
|
#define VALUE_REGNUM(val) (*deprecated_value_regnum_hack (val))
|
|
|
|
|
|
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 ®param@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 after lval_funcs->coerce_ref (after check_typedef). Return
|
|
|
|
|
NULL if lval_funcs->coerce_ref is not applicable for whatever reason. */
|
|
|
|
|
|
|
|
|
|
extern struct value *coerce_ref_if_computed (const struct value *arg);
|
|
|
|
|
|
2012-02-21 13:48:59 +00:00
|
|
|
|
/* Setup a new value type and enclosing value type for dereferenced value VALUE.
|
|
|
|
|
ENC_TYPE is the new enclosing type that should be set. ORIGINAL_TYPE and
|
|
|
|
|
ORIGINAL_VAL are the type and value of the original reference or pointer.
|
|
|
|
|
|
|
|
|
|
Note, that VALUE is modified by this function.
|
|
|
|
|
|
|
|
|
|
It is a common implementation for coerce_ref and value_ind. */
|
|
|
|
|
|
|
|
|
|
extern struct value * readjust_indirect_value_type (struct value *value,
|
|
|
|
|
struct type *enc_type,
|
|
|
|
|
struct type *original_type,
|
|
|
|
|
struct value *original_val);
|
|
|
|
|
|
2003-05-10 23:10:08 +00:00
|
|
|
|
/* Convert a REF to the object referenced. */
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2004-11-10 Andrew Cagney <cagney@gnu.org>
* value.h (COERCE_REF, COERCE_ARRAY, COERCE_NUMBER, COERCE_ENUM)
(coerce_ref, coerce_array, coerce_number, coerce_enum): Replace
macros with function declarations.
* value.c (coerce_ref, coerce_array, coerce_number)
(coerce_enum): New functions.
(value_as_long, value_as_address): Update.
* ada-lang.c (ada_coerce_ref, ada_value_binop)
(ada_evaluate_subexp, ada_value_assign, ada_value_struct_elt): Update.
* jv-lang.c (evaluate_subexp_java): Update.
* valarith.c (value_less, value_neg, value_complement)
(value_binop, value_add, value_subscript, value_x_binop)
(value_logical_not, value_sub): Update.
* valops.c (check_field, value_struct_elt, value_ind)
(value_find_oload_method_list, value_cast, value_assign): Update.
* eval.c (evaluate_subexp_standard): Update.
2004-11-10 18:52:25 +00:00
|
|
|
|
extern struct value *coerce_ref (struct value *value);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
|
|
/* If ARG is an array, convert it to a pointer.
|
|
|
|
|
If ARG is a function, convert it to a function pointer.
|
|
|
|
|
|
|
|
|
|
References are dereferenced. */
|
|
|
|
|
|
2004-11-10 Andrew Cagney <cagney@gnu.org>
* value.h (COERCE_REF, COERCE_ARRAY, COERCE_NUMBER, COERCE_ENUM)
(coerce_ref, coerce_array, coerce_number, coerce_enum): Replace
macros with function declarations.
* value.c (coerce_ref, coerce_array, coerce_number)
(coerce_enum): New functions.
(value_as_long, value_as_address): Update.
* ada-lang.c (ada_coerce_ref, ada_value_binop)
(ada_evaluate_subexp, ada_value_assign, ada_value_struct_elt): Update.
* jv-lang.c (evaluate_subexp_java): Update.
* valarith.c (value_less, value_neg, value_complement)
(value_binop, value_add, value_subscript, value_x_binop)
(value_logical_not, value_sub): Update.
* valops.c (check_field, value_struct_elt, value_ind)
(value_find_oload_method_list, value_cast, value_assign): Update.
* eval.c (evaluate_subexp_standard): Update.
2004-11-10 18:52:25 +00:00
|
|
|
|
extern struct value *coerce_array (struct value *value);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2010-11-29 21:18:16 +00:00
|
|
|
|
/* Given a value, determine whether the bits starting at OFFSET and
|
|
|
|
|
extending for LENGTH bits are a synthetic pointer. */
|
|
|
|
|
|
|
|
|
|
extern int value_bits_synthetic_pointer (const struct value *value,
|
|
|
|
|
int offset, int length);
|
|
|
|
|
|
2011-02-14 11:10:53 +00:00
|
|
|
|
/* Given a value, determine whether the contents bytes starting at
|
|
|
|
|
OFFSET and extending for LENGTH bytes are available. This returns
|
|
|
|
|
nonzero if all bytes in the given range are available, zero if any
|
|
|
|
|
byte is unavailable. */
|
|
|
|
|
|
|
|
|
|
extern int value_bytes_available (const struct value *value,
|
|
|
|
|
int offset, int length);
|
|
|
|
|
|
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
|
|
|
|
/* Given a value, determine whether the contents bits starting at
|
|
|
|
|
OFFSET and extending for LENGTH bits are available. This returns
|
|
|
|
|
nonzero if all bits in the given range are available, zero if any
|
|
|
|
|
bit is unavailable. */
|
|
|
|
|
|
|
|
|
|
extern int value_bits_available (const struct value *value,
|
|
|
|
|
int offset, int length);
|
|
|
|
|
|
2011-02-14 11:33:24 +00:00
|
|
|
|
/* Like value_bytes_available, but return false if any byte in the
|
|
|
|
|
whole object is unavailable. */
|
|
|
|
|
extern int value_entirely_available (struct value *value);
|
|
|
|
|
|
Add options to skip unavailable locals
This is the patch to add new option '--skip-unavailable' to MI
commands '-stack-list-{locals, arguments, variables}'. This patch
extends list_args_or_locals to add a new parameter 'skip_unavailable',
and don't list locals or arguments if values are unavailable and
'skip_unavailable' is true.
This is inspecting a trace frame (tfind mode), where only a few
locals have been collected.
-stack-list-locals, no switch vs new switch:
-stack-list-locals --simple-values
^done,locals=[{name="array",type="unsigned char [2]"},{name="i",type="int",value="<unavailable>"}]
-stack-list-locals --skip-unavailable --simple-values
^done,locals=[{name="array",type="unsigned char [2]"}]
-stack-list-arguments, no switch vs new switch:
-stack-list-arguments --simple-values
^done,stack-args=[frame={level="0",args=[{name="j",type="int",value="4"},{name="s",type="char *",value="<unavailable>"}]},frame={level="1",args=[]}]
-stack-list-arguments --skip-unavailable --simple-values
^done,stack-args=[frame={level="0",args=[{name="j",type="int",value="4"}]},frame={level="1",args=[]}]
-stack-list-variables, no switch vs new switch:
-stack-list-variables --simple-values
^done,variables=[{name="j",arg="1",type="int",value="4"},{name="s",arg="1",type="char *",value="<unavailable>"},{name="array",type="unsigned char [2]"},{name="i",type="int",value="<unavailable>"}]
-stack-list-variables --skip-unavailable --simple-values
^done,variables=[{name="j",arg="1",type="int",value="4"},{name="array",type="unsigned char [2]"}]
tests are added to test these new options.
gdb:
2013-08-27 Pedro Alves <pedro@codesourcery.com>
Yao Qi <yao@codesourcery.com>
* mi/mi-cmd-stack.c (list_args_or_locals): Adjust prototype.
(parse_no_frames_option): Remove.
(mi_cmd_stack_list_locals): Handle --skip-unavailable.
(mi_cmd_stack_list_args): Adjust.
(mi_cmd_stack_list_variables): Handle --skip-unavailable.
(list_arg_or_local): Add new parameter 'skip_unavailable'. Return
early if SKIP_UNAVAILABLE is true and ARG->val is unavailable.
Caller update.
(list_args_or_locals): New parameter 'skip_unavailable'.
Handle it.
* valprint.c (scalar_type_p): Rename to ...
(val_print_scalar_type_p): ... this. Make extern.
(val_print, value_check_printable): Adjust.
* valprint.h (val_print_scalar_type_p): Declare.
* value.c (value_entirely_unavailable): New function.
* value.h (value_entirely_unavailable): Declare.
* NEWS: Mention the new option "--skip-unavailable" to MI
commands '-stack-list-locals', '-stack-list-arguments' and
'-stack-list-variables'.
gdb/doc:
2013-08-27 Pedro Alves <pedro@codesourcery.com>
Yao Qi <yao@codesourcery.com>
* gdb.texinfo (GDB/MI Stack Manipulation) <-stack-list-locals>:
Document new --skip-unavailable option.
<-stack-list-variables>: Document new --skip-unavailable option.
gdb/testsuite:
2013-08-27 Yao Qi <yao@codesourcery.com>
* gdb.trace/entry-values.exp: Test unavailable entry value is
not shown when option '--skip-unavailable' is specified.
* gdb.trace/mi-trace-unavailable.exp (test_trace_unavailable):
Add tests for new option '--skip-unavailable'.
2013-08-27 05:20:57 +00:00
|
|
|
|
/* Like value_entirely_available, but return false if any byte in the
|
|
|
|
|
whole object is available. */
|
|
|
|
|
extern int value_entirely_unavailable (struct value *value);
|
|
|
|
|
|
2011-02-14 11:10:53 +00:00
|
|
|
|
/* Mark VALUE's content bytes starting at OFFSET and extending for
|
|
|
|
|
LENGTH bytes as unavailable. */
|
|
|
|
|
|
|
|
|
|
extern void mark_value_bytes_unavailable (struct value *value,
|
|
|
|
|
int offset, int length);
|
2011-02-14 11:23:33 +00:00
|
|
|
|
|
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's content bits starting at OFFSET and extending for
|
|
|
|
|
LENGTH bits as unavailable. */
|
|
|
|
|
|
|
|
|
|
extern void mark_value_bits_unavailable (struct value *value,
|
|
|
|
|
int offset, int length);
|
|
|
|
|
|
2011-02-14 11:23:33 +00:00
|
|
|
|
/* Compare LENGTH bytes of VAL1's contents starting at OFFSET1 with
|
2011-02-16 10:13:53 +00:00
|
|
|
|
LENGTH bytes of VAL2's contents starting at OFFSET2.
|
|
|
|
|
|
|
|
|
|
Note that "contents" refers to the whole value's contents
|
|
|
|
|
(value_contents_all), without any embedded offset adjustment. For
|
|
|
|
|
example, to compare a complete object value with itself, including
|
|
|
|
|
its enclosing type chunk, you'd do:
|
|
|
|
|
|
|
|
|
|
int len = TYPE_LENGTH (check_typedef (value_enclosing_type (val)));
|
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
|
|
|
|
value_contents_eq (val, 0, val, 0, len);
|
|
|
|
|
|
|
|
|
|
Returns true iff the set of available/valid contents match.
|
|
|
|
|
|
|
|
|
|
Optimized-out contents are equal to optimized-out contents, and are
|
|
|
|
|
not equal to non-optimized-out contents.
|
2011-02-16 10:13:53 +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
|
|
|
|
Unavailable contente are equal to unavailable contents, and are not
|
|
|
|
|
equal to non-unavailable contents.
|
2011-02-14 11:23:33 +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
|
|
|
|
For example, if 'x's represent an unavailable byte, and 'V' and 'Z'
|
|
|
|
|
represent different available/valid bytes, in a value with length
|
|
|
|
|
16:
|
|
|
|
|
|
|
|
|
|
offset: 0 4 8 12 16
|
|
|
|
|
contents: xxxxVVVVxxxxVVZZ
|
2011-02-14 11:23:33 +00:00
|
|
|
|
|
|
|
|
|
then:
|
|
|
|
|
|
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
|
|
|
|
value_contents_eq(val, 0, val, 8, 6) => 1
|
|
|
|
|
value_contents_eq(val, 0, val, 4, 4) => 0
|
|
|
|
|
value_contents_eq(val, 0, val, 8, 8) => 0
|
|
|
|
|
value_contents_eq(val, 4, val, 12, 2) => 1
|
|
|
|
|
value_contents_eq(val, 4, val, 12, 4) => 0
|
|
|
|
|
value_contents_eq(val, 3, val, 4, 4) => 0
|
|
|
|
|
|
|
|
|
|
If 'x's represent an unavailable byte, 'o' represents an optimized
|
|
|
|
|
out byte, in a value with length 8:
|
|
|
|
|
|
|
|
|
|
offset: 0 4 8
|
|
|
|
|
contents: xxxxoooo
|
|
|
|
|
|
|
|
|
|
then:
|
|
|
|
|
|
|
|
|
|
value_contents_eq(val, 0, val, 2, 2) => 1
|
|
|
|
|
value_contents_eq(val, 4, val, 6, 2) => 1
|
|
|
|
|
value_contents_eq(val, 0, val, 4, 4) => 0
|
|
|
|
|
|
|
|
|
|
We only know whether a value chunk is unavailable or optimized out
|
|
|
|
|
if we've tried to read it. As this routine is used by printing
|
|
|
|
|
routines, which may be printing values in the value history, long
|
|
|
|
|
after the inferior is gone, it works with const values. Therefore,
|
|
|
|
|
this routine must not be called with lazy values. */
|
|
|
|
|
|
|
|
|
|
extern int value_contents_eq (const struct value *val1, int offset1,
|
|
|
|
|
const struct value *val2, int offset2,
|
|
|
|
|
int length);
|
2011-02-14 11:10:53 +00:00
|
|
|
|
|
2015-07-28 15:01:50 +00:00
|
|
|
|
/* Read LENGTH addressable memory units starting at MEMADDR into BUFFER,
|
|
|
|
|
which is (or will be copied to) VAL's contents buffer offset by
|
2011-02-14 11:21:25 +00:00
|
|
|
|
EMBEDDED_OFFSET (that is, to &VAL->contents[EMBEDDED_OFFSET]).
|
|
|
|
|
Marks value contents ranges as unavailable if the corresponding
|
|
|
|
|
memory is likewise unavailable. STACK indicates whether the memory
|
|
|
|
|
is known to be stack memory. */
|
|
|
|
|
|
2011-02-14 22:08:48 +00:00
|
|
|
|
extern void read_value_memory (struct value *val, int embedded_offset,
|
2011-02-14 11:21:25 +00:00
|
|
|
|
int stack, CORE_ADDR memaddr,
|
|
|
|
|
gdb_byte *buffer, size_t length);
|
|
|
|
|
|
2013-01-25 17:16:43 +00:00
|
|
|
|
/* Cast SCALAR_VALUE to the element type of VECTOR_TYPE, then replicate
|
|
|
|
|
into each element of a new vector value with VECTOR_TYPE. */
|
|
|
|
|
|
|
|
|
|
struct value *value_vector_widen (struct value *scalar_value,
|
|
|
|
|
struct type *vector_type);
|
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
1999-07-07 20:19:36 +00:00
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
#include "symtab.h"
|
|
|
|
|
#include "gdbtypes.h"
|
|
|
|
|
#include "expression.h"
|
|
|
|
|
|
|
|
|
|
struct frame_info;
|
|
|
|
|
struct fn_field;
|
|
|
|
|
|
2012-05-18 15:31:42 +00:00
|
|
|
|
extern int print_address_demangle (const struct value_print_options *,
|
|
|
|
|
struct gdbarch *, CORE_ADDR,
|
|
|
|
|
struct ui_file *, int);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern LONGEST value_as_long (struct value *val);
|
|
|
|
|
extern DOUBLEST value_as_double (struct value *val);
|
|
|
|
|
extern CORE_ADDR value_as_address (struct value *val);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-05-09 Andrew Cagney <cagney@gnu.org>
Use gdb_byte in preference to bfd_byte.
* gdbarch.sh: Update.
* gdbarch.h, gdbarch.c: Re-generate.
* ada-lang.c, ada-lang.h, ada-valprint.c, arch-utils.c: Update.
* c-lang.c, c-lang.h, c-valprint.c, cp-valprint.c: Update.
* f-lang.c, f-lang.h, f-valprint.c, gdbcore.h, jv-lang.h: Update.
* jv-valprint.c, language.c, language.h, m2-lang.c: Update.
* m2-lang.h, m2-valprint.c, objc-lang.c, p-lang.c: Update.
* p-lang.h, p-valprint.c, regcache.c, scm-lang.c: Update.
* scm-lang.h, scm-valprint.c, target.c, target.h: Update.
* tramp-frame.c, valarith.c, valops.c, valprint.c: Update.
* valprint.h, value.c, value.h: Update.
2005-05-09 21:20:35 +00:00
|
|
|
|
extern LONGEST unpack_long (struct type *type, const gdb_byte *valaddr);
|
|
|
|
|
extern DOUBLEST unpack_double (struct type *type, const gdb_byte *valaddr,
|
2003-01-06 18:49:09 +00:00
|
|
|
|
int *invp);
|
2005-05-09 Andrew Cagney <cagney@gnu.org>
Use gdb_byte in preference to bfd_byte.
* gdbarch.sh: Update.
* gdbarch.h, gdbarch.c: Re-generate.
* ada-lang.c, ada-lang.h, ada-valprint.c, arch-utils.c: Update.
* c-lang.c, c-lang.h, c-valprint.c, cp-valprint.c: Update.
* f-lang.c, f-lang.h, f-valprint.c, gdbcore.h, jv-lang.h: Update.
* jv-valprint.c, language.c, language.h, m2-lang.c: Update.
* m2-lang.h, m2-valprint.c, objc-lang.c, p-lang.c: Update.
* p-lang.h, p-valprint.c, regcache.c, scm-lang.c: Update.
* scm-lang.h, scm-valprint.c, target.c, target.h: Update.
* tramp-frame.c, valarith.c, valops.c, valprint.c: Update.
* valprint.h, value.c, value.h: Update.
2005-05-09 21:20:35 +00:00
|
|
|
|
extern CORE_ADDR unpack_pointer (struct type *type, const gdb_byte *valaddr);
|
2011-02-14 11:25:59 +00:00
|
|
|
|
|
2005-04-28 16:15:19 +00:00
|
|
|
|
extern LONGEST unpack_field_as_long (struct type *type,
|
2005-05-09 Andrew Cagney <cagney@gnu.org>
Use gdb_byte in preference to bfd_byte.
* gdbarch.sh: Update.
* gdbarch.h, gdbarch.c: Re-generate.
* ada-lang.c, ada-lang.h, ada-valprint.c, arch-utils.c: Update.
* c-lang.c, c-lang.h, c-valprint.c, cp-valprint.c: Update.
* f-lang.c, f-lang.h, f-valprint.c, gdbcore.h, jv-lang.h: Update.
* jv-valprint.c, language.c, language.h, m2-lang.c: Update.
* m2-lang.h, m2-valprint.c, objc-lang.c, p-lang.c: Update.
* p-lang.h, p-valprint.c, regcache.c, scm-lang.c: Update.
* scm-lang.h, scm-valprint.c, target.c, target.h: Update.
* tramp-frame.c, valarith.c, valops.c, valprint.c: Update.
* valprint.h, value.c, value.h: Update.
2005-05-09 21:20:35 +00:00
|
|
|
|
const gdb_byte *valaddr,
|
2000-05-28 01:12:42 +00:00
|
|
|
|
int fieldno);
|
2011-02-14 11:25:59 +00:00
|
|
|
|
extern int unpack_value_field_as_long (struct type *type, const gdb_byte *valaddr,
|
|
|
|
|
int embedded_offset, int fieldno,
|
|
|
|
|
const struct value *val, LONGEST *result);
|
|
|
|
|
|
2014-09-16 16:40:06 +00:00
|
|
|
|
extern void unpack_value_bitfield (struct value *dest_val,
|
|
|
|
|
int bitpos, int bitsize,
|
|
|
|
|
const gdb_byte *valaddr, int embedded_offset,
|
|
|
|
|
const struct value *val);
|
|
|
|
|
|
2011-02-14 11:25:59 +00:00
|
|
|
|
extern struct value *value_field_bitfield (struct type *type, int fieldno,
|
|
|
|
|
const gdb_byte *valaddr,
|
|
|
|
|
int embedded_offset,
|
|
|
|
|
const struct value *val);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2007-05-14 17:21:50 +00:00
|
|
|
|
extern void pack_long (gdb_byte *buf, struct type *type, LONGEST num);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_from_longest (struct type *type, LONGEST num);
|
2010-06-28 21:16:04 +00:00
|
|
|
|
extern struct value *value_from_ulongest (struct type *type, ULONGEST num);
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_from_pointer (struct type *type, CORE_ADDR addr);
|
|
|
|
|
extern struct value *value_from_double (struct type *type, DOUBLEST num);
|
2008-01-07 22:33:57 +00:00
|
|
|
|
extern struct value *value_from_decfloat (struct type *type,
|
|
|
|
|
const gdb_byte *decbytes);
|
2014-07-22 16:47:53 +00:00
|
|
|
|
extern struct value *value_from_history_ref (const char *, const char **);
|
1999-06-14 18:08:47 +00:00
|
|
|
|
|
2004-11-09 Andrew Cagney <cagney@gnu.org>
* value.h (struct value): Delete field bfd_section.
(VALUE_BFD_SECTION): Delete macro.
(COERCE_REF): Update.
(value_at, value_at_lazy): Delete asection parameter.
* printcmd.c (print_formatted, x_command): Update.
(do_examine): Delete asection parameter.
(next_section): Delete variable.
* valops.c (value_cast, value_at, value_at_lazy)
(value_coerce_function, value_addr, value_ind, value_string)
(find_rt_vbase_offset, value_full_object): Update.
* hpacc-abi.c (hpacc_virtual_fn_field)
(hpacc_value_rtti_type): Update.
* gnu-v3-abi.c (gnuv3_rtti_type, gnuv3_virtual_fn_field)
(gnuv3_baseclass_offset): Update.
* f-valprint.c (f_val_print): Update.
* c-valprint.c (c_val_print): Update.
* p-valprint.c (pascal_val_print): Update.
* jv-valprint.c (java_value_print): Update.
* jv-lang.c (java_class_from_object, evaluate_subexp_java): Update.
* ada-lang.c (ada_value_primitive_packed_val)
(ada_evaluate_subexp): Update.
* dwarf2loc.c (dwarf2_evaluate_loc_desc): Update.
* expprint.c (print_subexp_standard): Update.
* infcall.c (call_function_by_hand): Update.
* valarith.c (value_add): Update.
* eval.c (evaluate_subexp_standard): Update.
* values.c (allocate_value, value_copy, value_static_field): Update.
* findvar.c (read_var_value, locate_var_value): Update.
2004-11-09 14:43:27 +00:00
|
|
|
|
extern struct value *value_at (struct type *type, CORE_ADDR addr);
|
|
|
|
|
extern struct value *value_at_lazy (struct type *type, CORE_ADDR addr);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2014-05-08 17:26:44 +00:00
|
|
|
|
extern struct value *value_from_contents_and_address_unresolved
|
|
|
|
|
(struct type *, const gdb_byte *, CORE_ADDR);
|
2008-11-24 23:21:16 +00:00
|
|
|
|
extern struct value *value_from_contents_and_address (struct type *,
|
|
|
|
|
const gdb_byte *,
|
|
|
|
|
CORE_ADDR);
|
2011-05-12 17:40:55 +00:00
|
|
|
|
extern struct value *value_from_contents (struct type *, const gdb_byte *);
|
2008-11-24 23:21:16 +00:00
|
|
|
|
|
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
|
|
|
|
extern struct value *default_value_from_register (struct gdbarch *gdbarch,
|
|
|
|
|
struct type *type,
|
2007-01-08 20:03:49 +00:00
|
|
|
|
int 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
|
|
|
|
struct frame_id frame_id);
|
2007-01-08 20:03:49 +00:00
|
|
|
|
|
2011-10-27 17:05:40 +00:00
|
|
|
|
extern void read_frame_register_value (struct value *value,
|
|
|
|
|
struct frame_info *frame);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_from_register (struct type *type, int regnum,
|
|
|
|
|
struct frame_info *frame);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
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
|
|
|
|
extern CORE_ADDR address_from_register (int regnum,
|
2006-11-22 13:44:45 +00:00
|
|
|
|
struct frame_info *frame);
|
|
|
|
|
|
2011-10-20 12:31:30 +00:00
|
|
|
|
extern struct value *value_of_variable (struct symbol *var,
|
|
|
|
|
const struct block *b);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
* ada-exp.y (write_object_renaming, write_var_or_type)
(write_ambiguous_var, write_var_from_sym): Make blocks const.
* ada-lang.c (replace_operator_with_call)
(find_old_style_renaming_symbol): Make blocks const.
* ada-lang.h (ada_find_renaming_symbol): Update.
(struct ada_symbol_info) <block>: Now const.
* breakpoint.c (watch_command_1): Update.
* breakpoint.h (struct watchpoint) <exp_valid_block,
cond_exp_valid_block>: Now const.
* c-exp.y (classify_inner_name, classify_name): Make block
argument const.
* expprint.c (print_subexp_standard) <OP_VAR_VALUE>: Make 'b'
const.
* expression.h (innermost_block, parse_exp_1): Update.
(union exp_element) <block>: Now const.
* gdbtypes.c (lookup_template_type, lookup_enum, lookup_union)
(lookup_struct): Make block argument const.
* gdbtypes.h (lookup_template_type): Update.
* go-exp.y (classify_name, classify_packaged_name)
(package_name_p): Make block argument const.
* objc-lang.c (lookup_struct_typedef): Make block argument const.
* objc-lang.h (lookup_struct_typedef): Update.
* parse.c (parse_exp_in_context, parse_exp_1)
(write_exp_elt_block): Make block arguments const.
(expression_context_block, innermost_block): Now const.
* parser-defs.h (write_exp_elt_block): Update.
(expression_context_block, innermost_block, block_found): Now
const.
* printcmd.c (struct display) <block>: Now const.
* symtab.h (lookup_struct, lookup_union, lookup_enum): Update.
* valops.c (address_of_variable): Make block argument const.
* value.h (value_of_variable): Update.
* varobj.c (struct varobj_root) <valid_block>: Now const.
2012-12-03 19:59:14 +00:00
|
|
|
|
extern struct value *address_of_variable (struct symbol *var,
|
|
|
|
|
const struct block *b);
|
2009-01-15 15:38:07 +00:00
|
|
|
|
|
2005-01-27 16:45:09 +00:00
|
|
|
|
extern struct value *value_of_register (int regnum, struct frame_info *frame);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2008-04-30 21:13:49 +00:00
|
|
|
|
struct value *value_of_register_lazy (struct frame_info *frame, int regnum);
|
|
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
|
extern int symbol_read_needs_frame (struct symbol *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *read_var_value (struct symbol *var,
|
|
|
|
|
struct frame_info *frame);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
language-specific read_var_value for Ada renamings
The purpose of this patch is to better support renamings in the
"info locals" command. Consider ...
procedure Foo is
GV : Integer renames Pck.Global_Variable;
begin
Increment (GV); -- STOP
end Foo;
... Pck.Global_Variable is just an integer. After having stopped at
the "STOP" line, "info locals" yields:
(gdb) info locals
gv = <error reading variable gv (Cannot access memory at address 0xffffffffffffffff)>
In reality, two things are happening:
(1) Variable "GV" does not exist, which is normal, since there is
"GV" the renaming of another variable;
(2) But to allow the user access to that renaming the same way
the code has, the compiler produces an artificial variable
whose name encodes the renaming:
gv___XR_pck__global_variable___XE
For practical reasons, the artificial variable itself is given
irrelevant types and addresses.
But the "info locals" command does not act as if it was a short-cut
of "foreach VAR in locals, print VAR". Instead it gets the value of
each VAR directly, which does not work in this case, since the variable
is artificial and needs to be decoded first.
This patch makes the "read_var_value" routine language-specific.
The old implementation of "read_var_value" gets renamed to
"default_read_var_value" and all languages now use it (unchanged
behavior), except for Ada. In Ada, the new function ada_read_var_value
checks if we have a renaming, and if so, evaluates its value, or else
defers to default_read_var_value.
gdb/ChangeLog:
* language.h (struct language_defn): New "method" la_read_var_value.
* findvar.c: #include "language.h".
(default_read_var_value): Renames read_var_value. Rewrite
function description.
(read_var_value): New function.
* value.h (default_read_var_value): Add prototype.
* ada-lang.c (ada_read_renaming_var_value, ada_read_var_value):
New functions.
(ada_language_defn): Add entry for la_read_var_value.
* c-lang.c, d-lang.c, f-lang.c, jv-lang.c, language.c,
* m2-lang.c, objc-lang.c, opencl-lang.c, p-lang.c: Update
language_defn structures to add entry for new la_read_var_value
field.
2012-03-02 19:29:01 +00:00
|
|
|
|
extern struct value *default_read_var_value (struct symbol *var,
|
|
|
|
|
struct frame_info *frame);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *allocate_value (struct type *type);
|
2008-11-26 16:27:28 +00:00
|
|
|
|
extern struct value *allocate_value_lazy (struct type *type);
|
2011-02-14 11:30:37 +00:00
|
|
|
|
extern void value_contents_copy (struct value *dst, int dst_offset,
|
|
|
|
|
struct value *src, int src_offset,
|
|
|
|
|
int length);
|
|
|
|
|
extern void value_contents_copy_raw (struct value *dst, int dst_offset,
|
|
|
|
|
struct value *src, int src_offset,
|
|
|
|
|
int length);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *allocate_repeat_value (struct type *type, int count);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_mark (void);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern void value_free_to_mark (struct value *mark);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2012-09-27 08:57:16 +00:00
|
|
|
|
extern struct value *value_cstring (char *ptr, ssize_t len,
|
2009-06-17 18:47:35 +00:00
|
|
|
|
struct type *char_type);
|
2012-09-27 08:57:16 +00:00
|
|
|
|
extern struct value *value_string (char *ptr, ssize_t len,
|
2009-06-17 18:47:35 +00:00
|
|
|
|
struct type *char_type);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_array (int lowbound, int highbound,
|
2005-01-27 16:45:09 +00:00
|
|
|
|
struct value **elemvec);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_concat (struct value *arg1, struct value *arg2);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_binop (struct value *arg1, struct value *arg2,
|
|
|
|
|
enum exp_opcode op);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
* value.h (value_subscript, value_subscripted_rvalue,
value_bitstring_subscript, value_ptradd): Use LONGEST instead
of value as type of the index argument.
(value_ptrsub): Remove.
* valarith.c (value_subscript, value_subscripted_rvalue,
value_bitstring_subscript, value_ptradd): Use LONGEST instead
of value as type of the index argument.
(value_ptrsub): Remove.
* wrapper.h (gdb_value_subscript): Use LONGEST instead of
value as type of the index argument.
* wrapper.c (gdb_value_subscript): Likewise.
Update calls to gdb_value_subscript, value_subscript,
value_subscripted_rvalue, value_bitstring_subscript and
value_ptradd to use LONGEST instead of value as index
argument type. Use value_ptradd instead of value_ptrsub.
* ada-lang.c (ada_value_subscript, ada_value_ptr_subscript,
ada_tag_name_2): Update.
* ada-tasks.c (read_atcb): Update.
* eval.c (evaluate_subexp_standard): Update.
* valarith.c (value_subscript): Update.
* gnu-v2-abi.c (gnuv2_virtual_fn_field): Update.
* gnu-v3-abi.c (gnuv3_get_virtual_fn, gnuv3_baseclass_offset,
gnuv3_method_ptr_to_value): Update.
* jv-lang.c (evaluate_subexp_java): Update.
* m2-lang.c (evaluate_subexp_modula2): Update.
* python/python-value.c (valpy_getitem, valpy_binop): Update.
* wrapper.c (gdb_value_subscript): Update.
* varobj.c (c_describe_child): Update.
2009-06-29 13:24:41 +00:00
|
|
|
|
extern struct value *value_ptradd (struct value *arg1, LONGEST arg2);
|
* value.h (value_add, value_sub): Remove.
(value_ptradd, value_ptrsub, value_ptrdiff): Add prototypes.
* valarith.c (value_add, value_sub): Remove.
(value_ptradd, value_ptrsub, value_ptrdiff): New functions.
(find_size_for_pointer_math): Add assertion. Update comment.
(value_binop): Update comment.
* eval.c (ptrmath_type_p): New function.
(evaluate_subexp_standard): Replace value_add and value_sub
by value_ptradd, value_ptrsub, value_ptrdiff or value_binop.
Use builtin_type_uint8 instead of builtin_type_char to hold
the increment for BINOP_{PRE,POST}{IN,DE}CREMENT operations.
* valarith.c (value_subscript): Replace value_add by
value_ptradd. Replace value_sub by value_binop.
* ada-lang.c (ada_value_ptr_subscript): Likewise.
(ada_tag_name_2): Replace value_add by value_ptradd.
(ada_evaluate_subexp): Replace value_add and value_sub by
value_binop.
* m2-lang.c (evaluate_subexp_modula2): Replace value_add
by value_ptradd.
* gnu-v2-abi.c (gnuv2_virtual_fn_field): Likewise.
* gnu-v3-abi.c (gnuv3_method_ptr_to_value): Likewise.
2008-09-11 14:13:46 +00:00
|
|
|
|
|
|
|
|
|
extern LONGEST value_ptrdiff (struct value *arg1, struct value *arg2);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2008-03-21 15:02:38 +00:00
|
|
|
|
extern int value_must_coerce_to_target (struct value *arg1);
|
|
|
|
|
|
|
|
|
|
extern struct value *value_coerce_to_target (struct value *arg1);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_coerce_array (struct value *arg1);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_coerce_function (struct value *arg1);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_ind (struct value *arg1);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_addr (struct value *arg1);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2006-07-13 04:31:42 +00:00
|
|
|
|
extern struct value *value_ref (struct value *arg1);
|
|
|
|
|
|
2005-01-27 16:45:09 +00:00
|
|
|
|
extern struct value *value_assign (struct value *toval,
|
|
|
|
|
struct value *fromval);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-03-08 14:35:20 +00:00
|
|
|
|
extern struct value *value_pos (struct value *arg1);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_neg (struct value *arg1);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_complement (struct value *arg1);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_struct_elt (struct value **argp,
|
|
|
|
|
struct value **args,
|
2010-02-08 20:55:43 +00:00
|
|
|
|
const char *name, int *static_memfuncp,
|
|
|
|
|
const char *err);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2013-12-27 20:20:59 +00:00
|
|
|
|
extern struct value *value_struct_elt_bitpos (struct value **argp,
|
|
|
|
|
int bitpos,
|
|
|
|
|
struct type *field_type,
|
|
|
|
|
const char *err);
|
|
|
|
|
|
2003-09-25 16:39:39 +00:00
|
|
|
|
extern struct value *value_aggregate_elt (struct type *curtype,
|
2014-03-27 18:16:38 +00:00
|
|
|
|
const char *name,
|
2009-11-10 22:17:58 +00:00
|
|
|
|
struct type *expect_type,
|
* NEWS: Mention pointer to member improvements.
* Makefile.in (gnu-v3-abi.o): Delete special rule.
(eval.o, gnu-v3-abi.o, ia64-tdep.o): Update.
* ada-valprint.c (ada_print_scalar): Update for new type codes.
* c-typeprint.c (c_print_type): Update for new type codes.
(c_type_print_varspec_prefix, c_type_print_varspec_suffix)
(c_type_print_base): Likewise.
(c_type_print_args): Rewrite.
* c-valprint.c (c_val_print): Update for new type codes. Remove
support for references to members. Treat methods like functions.
* cp-abi.c (cplus_print_method_ptr, cplus_method_ptr_size)
(cplus_make_method_ptr, cplus_method_ptr_to_value): New.
* cp-abi.h (cplus_print_method_ptr, cplus_method_ptr_size)
(cplus_make_method_ptr, cplus_method_ptr_to_value): New prototypes.
(struct cp_abi_ops): Add corresponding members.
* cp-valprint.c (cp_print_class_method): Delete.
(cp_find_class_member): New function.
(cp_print_class_member): Use it. Simplify support for bogus
member pointers.
* dwarf2read.c (quirk_gcc_member_function_pointer): Use
lookup_methodptr_type.
(read_tag_ptr_to_member_type): Likewise, and lookup_memberptr_type.
* eval.c (evaluate_subexp_standard): Implement EVAL_SKIP for
OP_SCOPE. Update call to value_aggregate_elt. Rewrite member
pointer support.
(evaluate_subexp_for_address): Handle OP_SCOPE explicitly. Handle
references returned by user defined operators.
* f-typeprint.c (f_print_type, f_type_print_varspec_prefix)
(f_type_print_varspec_suffix): Remove support for member pointers.
* gdbtypes.c (lookup_memberptr_type): Renamed from lookup_member_type
and adjusted.
(smash_to_memberptr_type): Likewise, from smash_to_member_type.
(lookup_methodptr_type): New.
(rank_one_type): Adjust for TYPE_CODE_MEMBERPTR.
(recursive_dump_type): Update for new types.
* gdbtypes.h (enum type_code): Replace TYPE_CODE_MEMBER with
TYPE_CODE_MEMBERPTR and TYPE_CODE_METHODPTR.
(lookup_memberptr_type, lookup_methodptr_type)
(smash_to_memberptr_type): New prototypes.
(smash_to_method_type): Formatting fix.
(lookup_member_type, smash_to_member_type): Delete prototypes.
* gnu-v3-abi.c (gnuv3_get_vtable, gnuv3_get_virtual_fn): New.
Do not rely on debug information for the vptr or the method's
enclosing type. Handle function descriptors for IA64.
(gnuv3_virtual_fn_field): Rewrite using the new functions.
(gnuv3_find_method_in, gnuv3_print_method_ptr)
(gnuv3_method_ptr_size, gnuv3_make_method_ptr)
(gnuv3_method_ptr_to_value): New.
(init_gnuv3_ops): Set new members of gnu_v3_abi_ops.
* hpread.c (hpread_type_lookup): Update for new types.
* infcall.c (value_arg_coerce): Likewise.
* m2-typeprint.c (m2_print_type): Remove explicit support
for member pointers.
* m2-valprint.c (m2_val_print): Likewise.
* p-typeprint.c (pascal_type_print_varspec_prefix)
(pascal_type_print_varspec_suffix, pascal_type_print_base): Likewise.
* p-valprint.c (pascal_val_print): Likewise.
(pascal_object_print_class_method, pascal_object_print_class_member):
Delete.
* p-lang.h (pascal_object_print_class_method)
(pascal_object_print_class_member): Delete prototypes.
* stabsread.c (read_type): Update for new types.
* typeprint.c (print_type_scalar): Likewise.
* valops.c (value_struct_elt_for_reference, value_namespace_elt)
(value_maybe_namespace_elt, value_aggregate_elt): Add want_address
argument. Construct a pointer to member if the address of a
function or data member is requested.
(value_cast_pointers): Don't modify the input value.
(value_cast): Adjust pointer to member handling for new types.
Allow null pointer to member constants. Don't modify the input
value.
(value_ind): Remove pointer to member check. Handle function
descriptors for function pointers.
(value_struct_elt, value_find_oload_method_list, check_field):
Remove pointer to member checks.
* value.c (unpack_long): Allow pointers to data members.
(value_from_longest): Allow member pointers.
* value.h (value_aggregate_elt): Add want_address.
* varobj.c (c_variable_editable): Remove check for members.
* gdbarch.sh: Add vtable_function_descriptors and vbit_in_delta.
* ia64-tdep.c (ia64_convert_from_func_ptr_addr): Handle descriptors
in virtual tables.
(ia64_gdbarch_init): Call set_gdbarch_vtable_function_descriptors.
* c-lang.h (cp_print_class_method): Delete prototype.
* arm-tdep.c (arm_gdbarch_init): Call set_gdbarch_vbit_in_delta.
* mips-tdep.c (mips_gdbarch_init): Likewise.
* gdbarch.c, gdbarch.h: Regenerated.
* gdb.cp/classes.exp (test_pointers_to_class_members): Update expected
output. Test the types of members and member pointers.
* gdb.cp/inherit.exp (test_print_mi_member_types): Remove KFAILs for
gdb/2092.
* gdb.cp/member-ptr.exp: Search for a comment instead of a
statement. Enable for GCC. Update expected output for some tests
and add new tests. Remove obsolete GCC KFAILs. Allow GCC's class
layout.
* gdb.cp/member-ptr.cc (Padding, Padding::vspacer, Base, Base::get_x)
(Base::vget_base, Left, Left::vget, Right, Right::vget, Diamond)
(Diamond::vget_base): New.
(main): Add new tests.
* gdb.cp/printmethod.exp: Update expected output for member functions.
* gdb.cp/virtfunc.exp (test_virtual_calls): Add a KFAIL for
print pEe->D::vg().
2007-01-03 18:05:45 +00:00
|
|
|
|
int want_address,
|
|
|
|
|
enum noside noside);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_static_field (struct type *type, int fieldno);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2010-06-07 16:11:35 +00:00
|
|
|
|
enum oload_search_type { NON_METHOD, METHOD, BOTH };
|
|
|
|
|
|
2011-10-14 20:22:17 +00:00
|
|
|
|
extern int find_overload_match (struct value **args, int nargs,
|
2010-06-07 16:11:35 +00:00
|
|
|
|
const char *name,
|
2013-01-25 22:31:43 +00:00
|
|
|
|
enum oload_search_type method,
|
2002-01-04 17:51:38 +00:00
|
|
|
|
struct value **objp, struct symbol *fsym,
|
2002-01-04 05:20:09 +00:00
|
|
|
|
struct value **valp, struct symbol **symp,
|
2014-07-09 17:25:48 +00:00
|
|
|
|
int *staticp, const int no_adl,
|
|
|
|
|
enum noside noside);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_field (struct value *arg1, int fieldno);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_primitive_field (struct value *arg1, int offset,
|
|
|
|
|
int fieldno,
|
|
|
|
|
struct type *arg_type);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
|
|
|
2012-02-21 13:48:59 +00:00
|
|
|
|
extern struct type *value_rtti_indirect_type (struct value *, int *, int *,
|
|
|
|
|
int *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_full_object (struct value *, struct type *, int,
|
|
|
|
|
int, int);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2012-05-21 19:47:54 +00:00
|
|
|
|
extern struct value *value_cast_pointers (struct type *, struct value *, int);
|
2006-07-13 04:31:42 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_cast (struct type *type, struct value *arg2);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2010-01-18 20:54:35 +00:00
|
|
|
|
extern struct value *value_reinterpret_cast (struct type *type,
|
|
|
|
|
struct value *arg);
|
|
|
|
|
|
|
|
|
|
extern struct value *value_dynamic_cast (struct type *type, struct value *arg);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_zero (struct type *type, enum lval_type lv);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2011-07-27 19:31:30 +00:00
|
|
|
|
extern struct value *value_one (struct type *type);
|
2008-02-04 00:23:05 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_repeat (struct value *arg1, int count);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
* value.h (value_subscript, value_subscripted_rvalue,
value_bitstring_subscript, value_ptradd): Use LONGEST instead
of value as type of the index argument.
(value_ptrsub): Remove.
* valarith.c (value_subscript, value_subscripted_rvalue,
value_bitstring_subscript, value_ptradd): Use LONGEST instead
of value as type of the index argument.
(value_ptrsub): Remove.
* wrapper.h (gdb_value_subscript): Use LONGEST instead of
value as type of the index argument.
* wrapper.c (gdb_value_subscript): Likewise.
Update calls to gdb_value_subscript, value_subscript,
value_subscripted_rvalue, value_bitstring_subscript and
value_ptradd to use LONGEST instead of value as index
argument type. Use value_ptradd instead of value_ptrsub.
* ada-lang.c (ada_value_subscript, ada_value_ptr_subscript,
ada_tag_name_2): Update.
* ada-tasks.c (read_atcb): Update.
* eval.c (evaluate_subexp_standard): Update.
* valarith.c (value_subscript): Update.
* gnu-v2-abi.c (gnuv2_virtual_fn_field): Update.
* gnu-v3-abi.c (gnuv3_get_virtual_fn, gnuv3_baseclass_offset,
gnuv3_method_ptr_to_value): Update.
* jv-lang.c (evaluate_subexp_java): Update.
* m2-lang.c (evaluate_subexp_modula2): Update.
* python/python-value.c (valpy_getitem, valpy_binop): Update.
* wrapper.c (gdb_value_subscript): Update.
* varobj.c (c_describe_child): Update.
2009-06-29 13:24:41 +00:00
|
|
|
|
extern struct value *value_subscript (struct value *array, LONGEST index);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2008-09-11 14:10:24 +00:00
|
|
|
|
extern struct value *value_bitstring_subscript (struct type *type,
|
|
|
|
|
struct value *bitstring,
|
* value.h (value_subscript, value_subscripted_rvalue,
value_bitstring_subscript, value_ptradd): Use LONGEST instead
of value as type of the index argument.
(value_ptrsub): Remove.
* valarith.c (value_subscript, value_subscripted_rvalue,
value_bitstring_subscript, value_ptradd): Use LONGEST instead
of value as type of the index argument.
(value_ptrsub): Remove.
* wrapper.h (gdb_value_subscript): Use LONGEST instead of
value as type of the index argument.
* wrapper.c (gdb_value_subscript): Likewise.
Update calls to gdb_value_subscript, value_subscript,
value_subscripted_rvalue, value_bitstring_subscript and
value_ptradd to use LONGEST instead of value as index
argument type. Use value_ptradd instead of value_ptrsub.
* ada-lang.c (ada_value_subscript, ada_value_ptr_subscript,
ada_tag_name_2): Update.
* ada-tasks.c (read_atcb): Update.
* eval.c (evaluate_subexp_standard): Update.
* valarith.c (value_subscript): Update.
* gnu-v2-abi.c (gnuv2_virtual_fn_field): Update.
* gnu-v3-abi.c (gnuv3_get_virtual_fn, gnuv3_baseclass_offset,
gnuv3_method_ptr_to_value): Update.
* jv-lang.c (evaluate_subexp_java): Update.
* m2-lang.c (evaluate_subexp_modula2): Update.
* python/python-value.c (valpy_getitem, valpy_binop): Update.
* wrapper.c (gdb_value_subscript): Update.
* varobj.c (c_describe_child): Update.
2009-06-29 13:24:41 +00:00
|
|
|
|
LONGEST index);
|
2008-09-11 14:10:24 +00:00
|
|
|
|
|
2003-10-02 04:40:58 +00:00
|
|
|
|
extern struct value *register_value_being_returned (struct type *valtype,
|
|
|
|
|
struct regcache *retbuf);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2008-09-11 14:11:40 +00:00
|
|
|
|
extern int value_in (struct value *element, struct value *set);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-05-09 Andrew Cagney <cagney@gnu.org>
Use gdb_byte in preference to bfd_byte.
* gdbarch.sh: Update.
* gdbarch.h, gdbarch.c: Re-generate.
* ada-lang.c, ada-lang.h, ada-valprint.c, arch-utils.c: Update.
* c-lang.c, c-lang.h, c-valprint.c, cp-valprint.c: Update.
* f-lang.c, f-lang.h, f-valprint.c, gdbcore.h, jv-lang.h: Update.
* jv-valprint.c, language.c, language.h, m2-lang.c: Update.
* m2-lang.h, m2-valprint.c, objc-lang.c, p-lang.c: Update.
* p-lang.h, p-valprint.c, regcache.c, scm-lang.c: Update.
* scm-lang.h, scm-valprint.c, target.c, target.h: Update.
* tramp-frame.c, valarith.c, valops.c, valprint.c: Update.
* valprint.h, value.c, value.h: Update.
2005-05-09 21:20:35 +00:00
|
|
|
|
extern int value_bit_index (struct type *type, const gdb_byte *addr,
|
2005-01-28 16:45:16 +00:00
|
|
|
|
int index);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2013-02-06 19:40:04 +00:00
|
|
|
|
extern enum return_value_convention
|
|
|
|
|
struct_return_convention (struct gdbarch *gdbarch, struct value *function,
|
|
|
|
|
struct type *value_type);
|
|
|
|
|
|
2009-06-17 18:43:24 +00:00
|
|
|
|
extern int using_struct_return (struct gdbarch *gdbarch,
|
2012-05-16 14:35:09 +00:00
|
|
|
|
struct value *function,
|
2008-04-22 11:03:42 +00:00
|
|
|
|
struct type *value_type);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *evaluate_expression (struct expression *exp);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *evaluate_type (struct expression *exp);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2009-06-23 16:37:19 +00:00
|
|
|
|
extern struct value *evaluate_subexp (struct type *expect_type,
|
|
|
|
|
struct expression *exp,
|
|
|
|
|
int *pos, enum noside noside);
|
|
|
|
|
|
2008-06-06 20:58:08 +00:00
|
|
|
|
extern struct value *evaluate_subexpression_type (struct expression *exp,
|
|
|
|
|
int subexp);
|
|
|
|
|
|
2010-07-07 16:15:18 +00:00
|
|
|
|
extern void fetch_subexp_value (struct expression *exp, int *pc,
|
|
|
|
|
struct value **valp, struct value **resultp,
|
2013-08-02 16:41:08 +00:00
|
|
|
|
struct value **val_chain,
|
|
|
|
|
int preserve_errors);
|
2010-07-07 16:15:18 +00:00
|
|
|
|
|
2008-06-06 20:58:08 +00:00
|
|
|
|
extern char *extract_field_op (struct expression *exp, int *subexp);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *evaluate_subexp_with_coercion (struct expression *,
|
|
|
|
|
int *, enum noside);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2013-03-12 17:39:45 +00:00
|
|
|
|
extern struct value *parse_and_eval (const char *exp);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2013-03-12 17:39:45 +00:00
|
|
|
|
extern struct value *parse_to_comma_and_eval (const char **expp);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
|
extern struct type *parse_and_eval_type (char *p, int length);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2013-03-12 17:39:45 +00:00
|
|
|
|
extern CORE_ADDR parse_and_eval_address (const char *exp);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2013-05-14 20:37:57 +00:00
|
|
|
|
extern LONGEST parse_and_eval_long (const char *exp);
|
2000-10-30 15:32:51 +00:00
|
|
|
|
|
2008-09-11 14:14:20 +00:00
|
|
|
|
extern void unop_promote (const struct language_defn *language,
|
|
|
|
|
struct gdbarch *gdbarch,
|
|
|
|
|
struct value **arg1);
|
|
|
|
|
|
|
|
|
|
extern void binop_promote (const struct language_defn *language,
|
|
|
|
|
struct gdbarch *gdbarch,
|
|
|
|
|
struct value **arg1, struct value **arg2);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *access_value_history (int num);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2009-07-02 12:11:19 +00:00
|
|
|
|
extern struct value *value_of_internalvar (struct gdbarch *gdbarch,
|
|
|
|
|
struct internalvar *var);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2009-06-03 18:16:44 +00:00
|
|
|
|
extern int get_internalvar_integer (struct internalvar *var, LONGEST *l);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern void set_internalvar (struct internalvar *var, struct value *val);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2009-06-03 18:16:44 +00:00
|
|
|
|
extern void set_internalvar_integer (struct internalvar *var, LONGEST l);
|
|
|
|
|
|
2009-07-02 12:11:19 +00:00
|
|
|
|
extern void set_internalvar_string (struct internalvar *var,
|
|
|
|
|
const char *string);
|
|
|
|
|
|
2009-06-03 18:16:44 +00:00
|
|
|
|
extern void clear_internalvar (struct internalvar *var);
|
|
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
|
extern void set_internalvar_component (struct internalvar *var,
|
|
|
|
|
int offset,
|
|
|
|
|
int bitpos, int bitsize,
|
2002-01-04 05:20:09 +00:00
|
|
|
|
struct value *newvalue);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
gdb/
2009-03-05 Tom Tromey <tromey@redhat.com>
Add support for convenience functions in Python.
* Makefile.in (SUBDIR_PYTHON_OBS): Add python-function.o.
(SUBDIR_PYTHON_SRCS): Add python-function.c.
(python-function.o): New target.
* eval.c: Include "python/python.h" and <ctype.h>.
(evaluate_subexp_standard): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* gdbtypes.h (type_code): Add TYPE_CODE_INTERNAL_FUNCTION.
* parse.c (write_exp_string): Remove duplicate word in comment.
* python/python-function.c: New file.
* python/python-internal.h (gdbpy_initialize_functions): Add
prototype.
* python/python.c (_initialize_python): Call
gdbpy_initialize_functions.
* valprint.c (value_check_printable): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* value.c: Include "cli/cli-decode.h".
(internal_function): New struct.
(functionlist, internal_fn_type): New static variables.
(lookup_only_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(create_internalvar): Likewise. Initialize new field.
(set_internal_var): Fix typo in comment. Don't allow assignment
to canonical variable.
(value_create_internal_function, value_internal_function_name,
call_internal_function, function_command, function_destroyer,
add_internal_function): New functions.
(_initialize_values): Create `function' placeholder command.
Initialize internal_fn_type.
* value.h (lookup_only_internalvar, create_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(internal_function_fn, add_internal_function, call_internal_function,
value_internal_function_name): Add prototypes.
(struct internalvar) <canonical>: New field.
gdb/doc/
2008-03-05 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Convenience Vars): Document convenience functions.
(Functions In Python): New node.
(Python API): Update.
gdb/testsuite/
2009-03-05 Thiago Jung Bauermann <bauerman@br.ibm.com>
* gdb.python/python-function.exp: New file.
2009-03-21 03:03:56 +00:00
|
|
|
|
extern struct internalvar *lookup_only_internalvar (const char *name);
|
2007-10-01 01:39:52 +00:00
|
|
|
|
|
gdb/
2009-03-05 Tom Tromey <tromey@redhat.com>
Add support for convenience functions in Python.
* Makefile.in (SUBDIR_PYTHON_OBS): Add python-function.o.
(SUBDIR_PYTHON_SRCS): Add python-function.c.
(python-function.o): New target.
* eval.c: Include "python/python.h" and <ctype.h>.
(evaluate_subexp_standard): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* gdbtypes.h (type_code): Add TYPE_CODE_INTERNAL_FUNCTION.
* parse.c (write_exp_string): Remove duplicate word in comment.
* python/python-function.c: New file.
* python/python-internal.h (gdbpy_initialize_functions): Add
prototype.
* python/python.c (_initialize_python): Call
gdbpy_initialize_functions.
* valprint.c (value_check_printable): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* value.c: Include "cli/cli-decode.h".
(internal_function): New struct.
(functionlist, internal_fn_type): New static variables.
(lookup_only_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(create_internalvar): Likewise. Initialize new field.
(set_internal_var): Fix typo in comment. Don't allow assignment
to canonical variable.
(value_create_internal_function, value_internal_function_name,
call_internal_function, function_command, function_destroyer,
add_internal_function): New functions.
(_initialize_values): Create `function' placeholder command.
Initialize internal_fn_type.
* value.h (lookup_only_internalvar, create_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(internal_function_fn, add_internal_function, call_internal_function,
value_internal_function_name): Add prototypes.
(struct internalvar) <canonical>: New field.
gdb/doc/
2008-03-05 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Convenience Vars): Document convenience functions.
(Functions In Python): New node.
(Python API): Update.
gdb/testsuite/
2009-03-05 Thiago Jung Bauermann <bauerman@br.ibm.com>
* gdb.python/python-function.exp: New file.
2009-03-21 03:03:56 +00:00
|
|
|
|
extern struct internalvar *create_internalvar (const char *name);
|
2007-10-01 01:39:52 +00:00
|
|
|
|
|
2012-06-13 15:50:22 +00:00
|
|
|
|
extern VEC (char_ptr) *complete_internalvar (const char *name);
|
|
|
|
|
|
2012-04-27 20:38:39 +00:00
|
|
|
|
/* An internalvar can be dynamically computed by supplying a vector of
|
|
|
|
|
function pointers to perform various operations. */
|
|
|
|
|
|
|
|
|
|
struct internalvar_funcs
|
|
|
|
|
{
|
|
|
|
|
/* Compute the value of the variable. The DATA argument passed to
|
|
|
|
|
the function is the same argument that was passed to
|
|
|
|
|
`create_internalvar_type_lazy'. */
|
|
|
|
|
|
|
|
|
|
struct value *(*make_value) (struct gdbarch *arch,
|
|
|
|
|
struct internalvar *var,
|
|
|
|
|
void *data);
|
|
|
|
|
|
|
|
|
|
/* Update the agent expression EXPR with bytecode to compute the
|
|
|
|
|
value. VALUE is the agent value we are updating. The DATA
|
|
|
|
|
argument passed to this function is the same argument that was
|
|
|
|
|
passed to `create_internalvar_type_lazy'. If this pointer is
|
|
|
|
|
NULL, then the internalvar cannot be compiled to an agent
|
|
|
|
|
expression. */
|
|
|
|
|
|
|
|
|
|
void (*compile_to_ax) (struct internalvar *var,
|
|
|
|
|
struct agent_expr *expr,
|
|
|
|
|
struct axs_value *value,
|
|
|
|
|
void *data);
|
|
|
|
|
|
|
|
|
|
/* If non-NULL, this is called to destroy DATA. The DATA argument
|
|
|
|
|
passed to this function is the same argument that was passed to
|
|
|
|
|
`create_internalvar_type_lazy'. */
|
|
|
|
|
|
|
|
|
|
void (*destroy) (void *data);
|
|
|
|
|
};
|
|
|
|
|
|
2013-08-13 19:25:04 +00:00
|
|
|
|
extern struct internalvar *create_internalvar_type_lazy (const char *name,
|
|
|
|
|
const struct internalvar_funcs *funcs,
|
|
|
|
|
void *data);
|
2012-04-27 20:38:39 +00:00
|
|
|
|
|
|
|
|
|
/* Compile an internal variable to an agent expression. VAR is the
|
|
|
|
|
variable to compile; EXPR and VALUE are the agent expression we are
|
|
|
|
|
updating. This will return 0 if there is no known way to compile
|
|
|
|
|
VAR, and 1 if VAR was successfully compiled. It may also throw an
|
|
|
|
|
exception on error. */
|
|
|
|
|
|
|
|
|
|
extern int compile_internalvar_to_ax (struct internalvar *var,
|
|
|
|
|
struct agent_expr *expr,
|
|
|
|
|
struct axs_value *value);
|
2009-02-06 22:59:01 +00:00
|
|
|
|
|
gdb/
2009-03-05 Tom Tromey <tromey@redhat.com>
Add support for convenience functions in Python.
* Makefile.in (SUBDIR_PYTHON_OBS): Add python-function.o.
(SUBDIR_PYTHON_SRCS): Add python-function.c.
(python-function.o): New target.
* eval.c: Include "python/python.h" and <ctype.h>.
(evaluate_subexp_standard): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* gdbtypes.h (type_code): Add TYPE_CODE_INTERNAL_FUNCTION.
* parse.c (write_exp_string): Remove duplicate word in comment.
* python/python-function.c: New file.
* python/python-internal.h (gdbpy_initialize_functions): Add
prototype.
* python/python.c (_initialize_python): Call
gdbpy_initialize_functions.
* valprint.c (value_check_printable): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* value.c: Include "cli/cli-decode.h".
(internal_function): New struct.
(functionlist, internal_fn_type): New static variables.
(lookup_only_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(create_internalvar): Likewise. Initialize new field.
(set_internal_var): Fix typo in comment. Don't allow assignment
to canonical variable.
(value_create_internal_function, value_internal_function_name,
call_internal_function, function_command, function_destroyer,
add_internal_function): New functions.
(_initialize_values): Create `function' placeholder command.
Initialize internal_fn_type.
* value.h (lookup_only_internalvar, create_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(internal_function_fn, add_internal_function, call_internal_function,
value_internal_function_name): Add prototypes.
(struct internalvar) <canonical>: New field.
gdb/doc/
2008-03-05 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Convenience Vars): Document convenience functions.
(Functions In Python): New node.
(Python API): Update.
gdb/testsuite/
2009-03-05 Thiago Jung Bauermann <bauerman@br.ibm.com>
* gdb.python/python-function.exp: New file.
2009-03-21 03:03:56 +00:00
|
|
|
|
extern struct internalvar *lookup_internalvar (const char *name);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern int value_equal (struct value *arg1, struct value *arg2);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2009-12-30 17:33:35 +00:00
|
|
|
|
extern int value_equal_contents (struct value *arg1, struct value *arg2);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern int value_less (struct value *arg1, struct value *arg2);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern int value_logical_not (struct value *arg1);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
|
|
/* C++ */
|
|
|
|
|
|
2011-09-08 14:54:20 +00:00
|
|
|
|
extern struct value *value_of_this (const struct language_defn *lang);
|
|
|
|
|
|
|
|
|
|
extern struct value *value_of_this_silent (const struct language_defn *lang);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_x_binop (struct value *arg1, struct value *arg2,
|
|
|
|
|
enum exp_opcode op,
|
|
|
|
|
enum exp_opcode otherop,
|
|
|
|
|
enum noside noside);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_x_unop (struct value *arg1, enum exp_opcode op,
|
|
|
|
|
enum noside noside);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-01-27 16:45:09 +00:00
|
|
|
|
extern struct value *value_fn_field (struct value **arg1p, struct fn_field *f,
|
2002-01-04 05:20:09 +00:00
|
|
|
|
int j, struct type *type, int offset);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2010-02-11 21:45:25 +00:00
|
|
|
|
extern int binop_types_user_defined_p (enum exp_opcode op,
|
|
|
|
|
struct type *type1,
|
|
|
|
|
struct type *type2);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern int binop_user_defined_p (enum exp_opcode op, struct value *arg1,
|
|
|
|
|
struct value *arg2);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern int unop_user_defined_p (enum exp_opcode op, struct value *arg1);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2011-05-06 14:12:18 +00:00
|
|
|
|
extern int destructor_name_p (const char *name, struct type *type);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2009-07-21 18:12:40 +00:00
|
|
|
|
extern void value_incref (struct value *val);
|
|
|
|
|
|
2008-11-26 16:27:28 +00:00
|
|
|
|
extern void value_free (struct value *val);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
|
extern void free_all_values (void);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2010-07-07 16:15:18 +00:00
|
|
|
|
extern void free_value_chain (struct value *v);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern void release_value (struct value *val);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2011-12-22 19:51:10 +00:00
|
|
|
|
extern void release_value_or_incref (struct value *val);
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern int record_latest_value (struct value *val);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
* gdbtypes.c (make_pointer_type, make_reference_type,
smash_to_memberptr_type, lookup_array_range_type, check_stub_method):
Use type architecture instead of current_gdbarch.
* gdbtypes.h (address_space_name_to_int, address_space_int_to_name):
Add GDBARCH paramter.
* gdbtypes.c (address_space_name_to_int, address_space_int_to_name):
Add GDBARCH parameter. Use it instead of current_gdbarch.
* c-typeprint.c (c_type_print_modifier): Update call.
* parse.c (push_type_address_space): Likewise.
* findvar.c (extract_typed_address, store_typed_address): Use type
architecture instead of current_gdbarch.
* value.c (value_as_address, unpack_field_as_long): Use type architecture
instead of current_gdbarch.
* doublest.c (floatformat_from_length): Add GDBARCH argument. Use it
instead of current_gdbarch.
(floatformat_from_type): Pass type architecture.
* infcall.c (find_function_addr): Use type architecture instead
of current_gdbarch.
* valarith.c (value_bitstring_subscript, value_x_binop, value_neg,
value_bit_index): Use type architecture instead of current_gdbarch.
* valops.c (value_cast, value_slice): Likewise.
* value.h (modify_field): Add TYPE argument.
* value.c (modify_field): Add TYPE argument. Use type architecture
instead of current_gdbarch.
(set_internalvar_component): Likewise.
* eval.c (evaluate_struct_tuple): Update call.
* valops.c (value_assign): Likewise.
* ada-lang.c (modify_general_field): Likewise. Add TYPE argument.
(make_array_descriptor): Update calls.
(move_bits): Add BITS_BIG_ENDIAN_P argument. Use it instead of
current_gdbarch.
(ada_value_assign, value_assign_to_component): Update calls.
(decode_packed_array, ada_value_primitive_packed_val, ada_value_assign,
value_assign_to_component): Use type arch instead of current_gdbarch.
* printcmd.c (float_type_from_length): Remove GDBARCH argument,
use type architecture instead.
(print_scalar_formatted, printf_command): Update calls. Use type
architecture instead of current_gdbarch.
* valprint.c (val_print_type_code_int): Use type architecture
instead of current_gdbarch.
* varobj.c (value_get_print_value): Likewise.
* python/python-prettyprint.c (print_string_repr): Add GDBARCH
argument. Use it instead of current_gdbarch.
(apply_val_pretty_printer): Update call.
* ada-valprint.c (ada_val_print_1): Use type architecture instead
of current_gdbarch.
* c-valprint.c (print_function_pointer_address): Add GDBARCH argument.
Use it instead of current_gdbarch.
(c_val_print): Update calls passing type architecture.
* f-valprint.c (f_val_print): Use type architecture instead of
current_gdbarch.
* jv-valprint (java_value_print): Likewise.
* m2-valprint.c (print_function_pointer_address): Add GDBARCH argument.
Use it instead of current_gdbarch.
(print_unpacked_pointer): Update calls passing type architecture.
* scm-valprint.c (scm_scmval_print): Use type architecture instead of
current_gdbarch.
* gnu-v3-abi.c (get_class_arch): Remove.
(gnuv3_rtti_type): Use get_type_arch instead of get_class_arch. Remove
special-case check for Java classes.
(gnuv3_virtual_fn_field, gnuv3_baseclass_offset, gnuv3_print_method_ptr,
gnuv3_method_ptr_size, gnuv3_make_method_ptr, gnuv3_method_ptr_to_value):
Use get_type_arch instead of get_class_arch.
2009-07-02 12:57:14 +00:00
|
|
|
|
extern void modify_field (struct type *type, gdb_byte *addr,
|
|
|
|
|
LONGEST fieldval, int bitpos, int bitsize);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
* gdbtypes.h (struct main_type): Change type of name,tag_name,
and fields.name members from char * to const char *. All uses updated.
(struct cplus_struct_type): Change type of fn_fieldlists.name member
from char * to const char *. All uses updated.
(type_name_no_tag): Update.
(lookup_unsigned_typename, lookup_signed_typename): Update.
* gdbtypes.c (type_name_no_tag): Change result type
from char * to const char *. All callers updated.
(lookup_unsigned_typename, lookup_signed_typename): Change type of
name parameter from char * to const char *.
* symtab.h (struct cplus_specific): Change type of demangled_name
member from char * to const char *. All uses updated.
(struct general_symbol_info): Change type of name and
mangled_lang.demangled_name members from char * to const char *.
All uses updated.
(symbol_get_demangled_name, symbol_natural_name): Update.
(symbol_demangled_name, symbol_search_name): Update.
* symtab.c (symbol_get_demangled_name): Change result type
from char * to const char *. All callers updated.
(symbol_natural_name, symbol_demangled_name): Ditto.
(symbol_search_name): Ditto.
(completion_list_add_name): Change type of symname,sym_text,
text,word parameters from char * to const char *.
(completion_list_objc_symbol): Change type of sym_text,
text,word parameters from char * to const char *.
* ada-lang.c (find_struct_field): Change type of name parameter
from char * to const char *.
(encoded_ordered_before): Similarly for N0,N1 parameters.
(old_renaming_is_invisible): Similarly for function_name parameter.
(ada_type_name): Change result type from char * to const char *.
All callers updated.
* ada-lang.h (ada_type_name): Update.
* buildsym.c (hashname): Change type of name parameter
from char * to const char *.
* buildsym.h (hashname): Update.
* dbxread.c (end_psymtab): Change type of include_list parameter
from char ** to const char **.
* dwarf2read.c (determine_prefix): Change result type
from char * to const char *. All callers updated.
* f-lang.c (find_common_for_function): Change type of name, funcname
parameters from char * to const char *.
* f-lang.c (find_common_for_function): Update.
* f-valprint.c (list_all_visible_commons): Change type of funcname
parameters from char * to const char *.
* gdbarch.sh (static_transform_name): Change type of name parameter
and result from char * to const char *.
* gdbarch.c: Regenerate.
* gdbarch.h: Regenerate.
* i386-sol2-tdep.c (i386_sol2_static_transform_name): Change type
of name parameter from char * to const char *.
* jv-lang.c (java_primitive_type_from_name): Ditto.
(java_demangled_signature_length): Similarly for signature parameter.
(java_demangled_signature_copy): Ditto.
(java_demangle_type_signature): Ditto.
* jv-lang.h (java_primitive_type_from_name): Update.
(java_demangle_type_signature): Update.
* objc-lang.c (specialcmp): Change type of a,b parameters
from char * to const char *.
* p-lang.c (is_pascal_string_type): Change type of arrayname parameter
from char * to const char *. All callers updated.
* p-lang.h (is_pascal_string_type): Update.
* solib-frv.c (find_canonical_descriptor_in_load_object): Change type
of name parameter from char * to const char *.
* sparc-sol2-tdep.c (sparc_sol2_static_transform_name): Ditto.
* utils.c (fprintf_symbol_filtered): Ditto.
* defs.h (fprintf_symbol_filtered): Update.
* sparc-tdep.h (sparc_sol2_static_transform_name): Update.
* stabsread.h (end_psymtab): Update.
* stack.c (find_frame_funname): Change type of funname parameter
from char ** to const char **.
* stack.h (find_frame_funname): Update.
* typeprint.c (type_print): Change type of varstring parameter
from char * to const char *.
* value.h (type_print): Update.
* xcoffread.c (xcoff_start_psymtab): Change type of filename parameter
from char * to const char *. All callers updated.
(xcoff_end_psymtab): Change type of include_list parameter
from char ** to const char **. All callers updated.
(swap_sym): Similarly for name parameter. All callers updated.
* coffread.c (patch_type): Add (char*) cast to xfree parameter.
Use xstrdup.
(process_coff_symbol): Use xstrdup.
* stabsread.c (stabs_method_name_from_physname): Renamed from
update_method_name_from_physname. Change result type from void
to char *. All callers updated.
(read_member_functions): In has_destructor case, store name in objfile
obstack instead of malloc space. In !has_stub case, fix mem leak.
2012-02-07 04:48:23 +00:00
|
|
|
|
extern void type_print (struct type *type, const char *varstring,
|
2005-01-27 16:45:09 +00:00
|
|
|
|
struct ui_file *stream, int show);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2009-02-05 12:16:25 +00:00
|
|
|
|
extern char *type_to_string (struct type *type);
|
|
|
|
|
|
2005-05-09 Andrew Cagney <cagney@gnu.org>
Use gdb_byte in preference to bfd_byte.
* gdbarch.sh: Update.
* gdbarch.h, gdbarch.c: Re-generate.
* ada-lang.c, ada-lang.h, ada-valprint.c, arch-utils.c: Update.
* c-lang.c, c-lang.h, c-valprint.c, cp-valprint.c: Update.
* f-lang.c, f-lang.h, f-valprint.c, gdbcore.h, jv-lang.h: Update.
* jv-valprint.c, language.c, language.h, m2-lang.c: Update.
* m2-lang.h, m2-valprint.c, objc-lang.c, p-lang.c: Update.
* p-lang.h, p-valprint.c, regcache.c, scm-lang.c: Update.
* scm-lang.h, scm-valprint.c, target.c, target.h: Update.
* tramp-frame.c, valarith.c, valops.c, valprint.c: Update.
* valprint.h, value.c, value.h: Update.
2005-05-09 21:20:35 +00:00
|
|
|
|
extern gdb_byte *baseclass_addr (struct type *type, int index,
|
|
|
|
|
gdb_byte *valaddr,
|
2005-04-28 16:15:19 +00:00
|
|
|
|
struct value **valuep, int *errp);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-01-27 16:45:09 +00:00
|
|
|
|
extern void print_longest (struct ui_file *stream, int format,
|
2000-02-02 00:21:19 +00:00
|
|
|
|
int use_local, LONGEST val);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-05-09 Andrew Cagney <cagney@gnu.org>
Use gdb_byte in preference to bfd_byte.
* gdbarch.sh: Update.
* gdbarch.h, gdbarch.c: Re-generate.
* ada-lang.c, ada-lang.h, ada-valprint.c, arch-utils.c: Update.
* c-lang.c, c-lang.h, c-valprint.c, cp-valprint.c: Update.
* f-lang.c, f-lang.h, f-valprint.c, gdbcore.h, jv-lang.h: Update.
* jv-valprint.c, language.c, language.h, m2-lang.c: Update.
* m2-lang.h, m2-valprint.c, objc-lang.c, p-lang.c: Update.
* p-lang.h, p-valprint.c, regcache.c, scm-lang.c: Update.
* scm-lang.h, scm-valprint.c, target.c, target.h: Update.
* tramp-frame.c, valarith.c, valops.c, valprint.c: Update.
* valprint.h, value.c, value.h: Update.
2005-05-09 21:20:35 +00:00
|
|
|
|
extern void print_floating (const gdb_byte *valaddr, struct type *type,
|
2005-01-27 16:45:09 +00:00
|
|
|
|
struct ui_file *stream);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2007-10-25 17:57:34 +00:00
|
|
|
|
extern void print_decimal_floating (const gdb_byte *valaddr, struct type *type,
|
|
|
|
|
struct ui_file *stream);
|
|
|
|
|
|
2012-03-01 19:22:22 +00:00
|
|
|
|
extern void value_print (struct value *val, struct ui_file *stream,
|
|
|
|
|
const struct value_print_options *options);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern void value_print_array_elements (struct value *val,
|
|
|
|
|
struct ui_file *stream, int format,
|
2013-07-09 16:57:09 +00:00
|
|
|
|
enum val_prettyformat pretty);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_release_to_mark (struct value *mark);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2012-03-01 19:24:57 +00:00
|
|
|
|
extern void val_print (struct type *type, const gdb_byte *valaddr,
|
|
|
|
|
int embedded_offset, CORE_ADDR address,
|
|
|
|
|
struct ui_file *stream, int recurse,
|
|
|
|
|
const struct value *val,
|
|
|
|
|
const struct value_print_options *options,
|
|
|
|
|
const struct language_defn *language);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2012-03-01 19:23:36 +00:00
|
|
|
|
extern void common_val_print (struct value *val,
|
|
|
|
|
struct ui_file *stream, int recurse,
|
|
|
|
|
const struct value_print_options *options,
|
|
|
|
|
const struct language_defn *language);
|
2005-02-28 17:00:49 +00:00
|
|
|
|
|
2010-10-15 18:54:13 +00:00
|
|
|
|
extern int val_print_string (struct type *elttype, const char *encoding,
|
|
|
|
|
CORE_ADDR addr, int len,
|
gdb
* varobj.c (value_get_print_value): Include valprint.h.
(value_get_print_value): Use get_formatted_print_options.
* value.h (struct value_print_options): Declare.
(value_print, val_print, common_val_print, val_print_string):
Update.
* value.c: Include valprint.h.
(show_values): Use get_user_print_options.
(show_convenience): Likewise.
* valprint.h (prettyprint_arrays, prettyprint_structs): Don't
declare.
(struct value_print_options): New type.
(vtblprint, unionprint, addressprint, objectprint, print_max,
inspect_it, repeat_count_threshold, output_format,
stop_print_at_null): Don't declare.
(user_print_options, get_user_print_options,
get_raw_print_options, get_formatted_print_options): Declare.
(print_array_indexes_p): Don't declare.
(maybe_print_array_index, val_print_array_elements): Update.
* valprint.c (print_max): Remove.
(user_print_options): New global.
(get_user_print_options, get_raw_print_options,
get_formatted_print_options): New functions.
(print_array_indexes, repeat_count_threshold, stop_print_at_null,
prettyprint_structs, prettyprint_arrays, unionprint,
addressprint): Remove.
(val_print): Remove format, deref_ref, pretty arguments; add
options. Update.
(common_val_print): Likewise.
(print_array_indexes_p): Remove.
(maybe_print_array_index): Remove format, pretty arguments; add
options. Update.
(val_print_array_elements): Remove format, deref_ref, pretty
arguments; add options. Update.
(val_print_string): Add options argument. Update.
(_initialize_valprint): Use user_print_options.
(output_format): Remove.
(set_output_radix_1): Use user_print_options.
* typeprint.c: Include valprint.h.
(objectprint): Don't declare.
(whatis_exp): Use get_user_print_options.
* tui/tui-regs.c: Include valprint.h.
(tui_register_format): Use get_formatted_print_options.
* tracepoint.c: Include valprint.h.
(addressprint): Don't declare.
(trace_mention): Use get_user_print_options.
(tracepoints_info): Likewise.
* stack.c (print_frame_args): Use get_raw_print_options.
(print_frame_info): Use get_user_print_options.
(print_frame): Likewise.
* sh64-tdep.c: Include valprint.h
(sh64_do_register): Use get_formatted_print_options.
* scm-valprint.c (scm_inferior_print): Remove format, deref_ref,
pretty arguments; add options.
(scm_scmlist_print): Likewise. Update.
(scm_scmval_print): Likewise.
(scm_val_print): Likewise.
(scm_value_print): Remove format, pretty arguments; add options.
Update.
* scm-lang.h (scm_value_print, scm_val_print, scm_scmval_print):
Update.
* scm-lang.c (scm_printstr): Add options argument.
* python/python-value.c: Include valprint.h.
(valpy_str): Use get_user_print_options.
* printcmd.c: Include valprint.h.
(addressprint): Don't declare.
(inspect_it): Remove.
(print_formatted): Remove format option; add options. Update.
(print_scalar_formatted): Likewise.
(print_address_demangle): Use get_user_print_options.
(do_examine): Use get_formatted_print_options.
(print_command_1): Likewise.
(output_command): Use get_formatted_print_options.
(do_one_display): Likewise.
(print_variable_value): Use get_user_print_options.
* p-valprint.c (pascal_val_print): Remove format, deref_ref,
pretty arguments; add options. Update.
(pascal_value_print): Remove format, pretty arguments; add
options. Update.
(vtblprint, objectprint): Don't declare.
(pascal_static_field_print): Remove.
(pascal_object_print_value_fields): Remove format, pretty
arguments; add options. Update.
(pascal_object_print_static_field): Likewise.
(_initialize_pascal_valprint): Use user_print_options. Update.
* p-lang.h (pascal_val_print, pascal_value_print,
pascal_printstr, pascal_object_print_value_fields): Update.
(vtblprint, static_field_print): Don't declare.
* p-lang.c (pascal_printstr): Add options argument. Update.
* objc-lang.c (objc_printstr): Add options argument. Update.
* mt-tdep.c: Include valprint.h.
(mt_registers_info): Use get_raw_print_options.
* mips-tdep.c: Include valprint.h.
(mips_print_fp_register): Use get_formatted_print_options.
(mips_print_register): Likewise.
* mi/mi-main.c: Include valprint.h.
(get_register): Use get_user_print_options.
(mi_cmd_data_evaluate_expression): Likewise.
(mi_cmd_data_read_memory): Use get_formatted_print_options.
* mi/mi-cmd-stack.c: Include valprint.h.
(list_args_or_locals): Use get_raw_print_options.
* m2-valprint.c (print_function_pointer_address): Add addressprint
argument.
(m2_print_long_set): Remove format, pretty arguments.
(m2_print_unbounded_array): Remove format, deref_ref, pretty
arguments; add options. Update.
(print_unpacked_pointer): Remove format argument; add options.
Now static. Update.
(print_variable_at_address): Remove format, deref_ref, pretty
arguments; add options. Update.
(m2_print_array_contents): Likewise.
(m2_val_print): Likewise.
* m2-lang.h (m2_val_print): Update.
* m2-lang.c (m2_printstr): Add options argument. Update.
* language.h (struct value_print_options): Declare.
(struct language_defn) <la_printstr>: Add options argument.
<la_val_print>: Remove format, deref_ref, pretty argument; add
options.
<la_value_print>: Remove format, pretty arguments; add options.
<la_print_array_index>: Likewise.
(LA_VAL_PRINT, LA_VALUE_PRINT, LA_PRINT_STRING,
LA_PRINT_ARRAY_INDEX): Update.
(default_print_array_index): Update.
* language.c (default_print_array_index): Remove format, pretty
arguments; add options. Update.
(unk_lang_printstr): Add options argument.
(unk_lang_val_print): Remove format, deref_ref, pretty arguments;
add options.
(unk_lang_value_print): Remove format, pretty arguments; add
options.
* jv-valprint.c (java_value_print): Remove format, pretty
arguments; add options. Update.
(java_print_value_fields): Likewise.
(java_val_print): Remove format, deref_ref, pretty arguments; add
options. Update.
* jv-lang.h (java_val_print, java_value_print): Declare.
* infcmd.c: Include valprint.h.
(print_return_value): Use get_raw_print_options.
(default_print_registers_info): Use get_user_print_options,
get_formatted_print_options.
(registers_info): Use get_formatted_print_options.
* gdbtypes.h (struct value_print_options): Declare.
(print_scalar_formatted): Update.
* f-valprint.c (f77_print_array_1): Remove format, deref_ref,
pretty arguments; add options. Update.
(f77_print_array): Likewise.
(f_val_print): Likewise.
* f-lang.h (f_val_print): Update.
* f-lang.c (f_printstr): Add options argument. Update.
(c_value_print): Update declaration.
* expprint.c: Include valprint.h.
(print_subexp_standard): Use get_raw_print_options,
get_user_print_options.
* eval.c: Include valprint.h.
(objectprint): Don't declare.
(evaluate_subexp_standard): Use get_user_print_options.
* cp-valprint.c (vtblprint, objectprint, static_field_print):
Remove.
(cp_print_value_fields): Remove format, pretty arguments; add
options. Update.
(cp_print_value): Likewise.
(cp_print_static_field): Likewise.
(_initialize_cp_valprint): Use user_print_options. Update.
* c-valprint.c (print_function_pointer_address): Add addressprint
argument.
(c_val_print): Remove format, deref_ref, pretty arguments; add
options. Update.
(c_value_print): Add options argument. Update.
* c-lang.h (c_val_print, c_value_print, c_printstr): Update.
(vtblprint, static_field_print): Don't declare.
(cp_print_value_fields): Update.
* c-lang.c (c_printstr): Add options argument. Update.
* breakpoint.c: Include valprint.h.
(addressprint): Don't declare.
(watchpoint_value_print): Use get_user_print_options.
(print_one_breakpoint_location): Likewise.
(breakpoint_1, print_it_catch_fork, print_it_catch_vfork, mention,
print_exception_catchpoint): Likewise.
* auxv.c (fprint_target_auxv): Don't declare addressprint. Use
get_user_print_options.
* ada-valprint.c (struct ada_val_print_args): Remove format,
deref_ref, and pretty; add options.
(print_optional_low_bound): Add options argument.
(val_print_packed_array_elements): Remove format and pretty
arguments; add options. Update.
(printstr): Add options argument. Update.
(ada_printstr): Likewise.
(ada_val_print): Remove format, deref_ref, pretty arguments; add
options argument. Update.
(ada_val_print_stub): Update.
(ada_val_print_array): Remove format, deref_ref, pretty arguments;
add options. Update.
(ada_val_print_1): Likewise.
(print_variant_part): Likewise.
(ada_value_print): Remove format, pretty arguments; add options.
Update.
(print_record): Likewise.
(print_field_values): Likewise.
* ada-lang.h (ada_val_print, ada_value_print, ada_printstr):
Update.
* ada-lang.c (ada_print_array_index): Add options argument; remove
format and pretty arguments.
(print_one_exception): Use get_user_print_options.
gdb/testsuite
* gdb.base/exprs.exp (test_expr): Add enum formatting tests.
2008-10-28 17:19:58 +00:00
|
|
|
|
struct ui_file *stream,
|
|
|
|
|
const struct value_print_options *options);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2008-12-22 23:11:56 +00:00
|
|
|
|
extern void print_variable_and_value (const char *name,
|
|
|
|
|
struct symbol *var,
|
|
|
|
|
struct frame_info *frame,
|
|
|
|
|
struct ui_file *stream,
|
|
|
|
|
int indent);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2005-01-27 16:45:09 +00:00
|
|
|
|
extern void typedef_print (struct type *type, struct symbol *news,
|
|
|
|
|
struct ui_file *stream);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2000-05-28 01:12:42 +00:00
|
|
|
|
extern char *internalvar_name (struct internalvar *var);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
gdb/
* Makefile.in (gdbtypes_h, gdbtypes.o, utils.o): Update.
* defs.h (hashtab_obstack_allocate, dummy_obstack_deallocate): Add
prototypes.
* dwarf2read.c (read_subroutine_type): Use TYPE_ZALLOC.
(hashtab_obstack_allocate, dummy_obstack_deallocate): Moved to...
* utils.c (hashtab_obstack_allocate, dummy_obstack_deallocate):
...here.
* gdbtypes.c: Include "hashtab.h".
(build_gdbtypes): Remove extra prototype.
(struct type_pair, type_pair_hash, type_pair_eq)
(create_copied_types_hash, copy_type_recursive): New.
* gdbtypes.h: Include "hashtab.h".
(TYPE_ZALLOC): New.
(create_copied_types_hash, copy_type_recursive): New prototypes.
* objfiles.c (free_objfile): Call preserve_values.
* symfile.c (reread_symbols): Likewise.
(clear_symtab_users): Remove calls to clear_value_history and
clear_internalvars.
* value.c (clear_value_history, clear_internalvars): Removed.
(preserve_one_value, preserve_values): New functions.
* value.h (clear_value_history, clear_internalvars): Removed.
(preserve_values): New prototype.
* tracepoint.c (_initialize_tracepoint): Do not initialize convenience
variables here.
gdb/doc/
* gdb.texinfo (Files): Remove obsolete bits from the description
of "symbol-file".
2006-02-01 23:14:11 +00:00
|
|
|
|
extern void preserve_values (struct objfile *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
|
|
|
|
/* From values.c */
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_copy (struct value *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2010-11-03 13:49:38 +00:00
|
|
|
|
extern struct value *value_non_lval (struct value *);
|
|
|
|
|
|
2014-11-11 13:43:03 +00:00
|
|
|
|
extern void value_force_lval (struct value *, CORE_ADDR);
|
|
|
|
|
|
2015-04-25 14:04:40 +00:00
|
|
|
|
extern struct value *make_cv_value (int, int, struct value *);
|
|
|
|
|
|
2009-08-13 18:39:20 +00:00
|
|
|
|
extern void preserve_one_value (struct value *, struct objfile *, htab_t);
|
|
|
|
|
|
1999-04-16 01:35:26 +00:00
|
|
|
|
/* From valops.c */
|
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *varying_to_slice (struct value *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_slice (struct value *, int, int);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_literal_complex (struct value *, struct value *,
|
|
|
|
|
struct type *);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2008-09-11 14:27:34 +00:00
|
|
|
|
extern struct value *find_function_in_inferior (const char *,
|
|
|
|
|
struct objfile **);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
2002-01-04 05:20:09 +00:00
|
|
|
|
extern struct value *value_allocate_space_in_inferior (int);
|
1999-04-16 01:35:26 +00:00
|
|
|
|
|
* value.h (value_subscript, value_subscripted_rvalue,
value_bitstring_subscript, value_ptradd): Use LONGEST instead
of value as type of the index argument.
(value_ptrsub): Remove.
* valarith.c (value_subscript, value_subscripted_rvalue,
value_bitstring_subscript, value_ptradd): Use LONGEST instead
of value as type of the index argument.
(value_ptrsub): Remove.
* wrapper.h (gdb_value_subscript): Use LONGEST instead of
value as type of the index argument.
* wrapper.c (gdb_value_subscript): Likewise.
Update calls to gdb_value_subscript, value_subscript,
value_subscripted_rvalue, value_bitstring_subscript and
value_ptradd to use LONGEST instead of value as index
argument type. Use value_ptradd instead of value_ptrsub.
* ada-lang.c (ada_value_subscript, ada_value_ptr_subscript,
ada_tag_name_2): Update.
* ada-tasks.c (read_atcb): Update.
* eval.c (evaluate_subexp_standard): Update.
* valarith.c (value_subscript): Update.
* gnu-v2-abi.c (gnuv2_virtual_fn_field): Update.
* gnu-v3-abi.c (gnuv3_get_virtual_fn, gnuv3_baseclass_offset,
gnuv3_method_ptr_to_value): Update.
* jv-lang.c (evaluate_subexp_java): Update.
* m2-lang.c (evaluate_subexp_modula2): Update.
* python/python-value.c (valpy_getitem, valpy_binop): Update.
* wrapper.c (gdb_value_subscript): Update.
* varobj.c (c_describe_child): Update.
2009-06-29 13:24:41 +00:00
|
|
|
|
extern struct value *value_subscripted_rvalue (struct value *array,
|
|
|
|
|
LONGEST index, int lowerbound);
|
gdb/
2009-03-05 Tom Tromey <tromey@redhat.com>
Add support for convenience functions in Python.
* Makefile.in (SUBDIR_PYTHON_OBS): Add python-function.o.
(SUBDIR_PYTHON_SRCS): Add python-function.c.
(python-function.o): New target.
* eval.c: Include "python/python.h" and <ctype.h>.
(evaluate_subexp_standard): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* gdbtypes.h (type_code): Add TYPE_CODE_INTERNAL_FUNCTION.
* parse.c (write_exp_string): Remove duplicate word in comment.
* python/python-function.c: New file.
* python/python-internal.h (gdbpy_initialize_functions): Add
prototype.
* python/python.c (_initialize_python): Call
gdbpy_initialize_functions.
* valprint.c (value_check_printable): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* value.c: Include "cli/cli-decode.h".
(internal_function): New struct.
(functionlist, internal_fn_type): New static variables.
(lookup_only_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(create_internalvar): Likewise. Initialize new field.
(set_internal_var): Fix typo in comment. Don't allow assignment
to canonical variable.
(value_create_internal_function, value_internal_function_name,
call_internal_function, function_command, function_destroyer,
add_internal_function): New functions.
(_initialize_values): Create `function' placeholder command.
Initialize internal_fn_type.
* value.h (lookup_only_internalvar, create_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(internal_function_fn, add_internal_function, call_internal_function,
value_internal_function_name): Add prototypes.
(struct internalvar) <canonical>: New field.
gdb/doc/
2008-03-05 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Convenience Vars): Document convenience functions.
(Functions In Python): New node.
(Python API): Update.
gdb/testsuite/
2009-03-05 Thiago Jung Bauermann <bauerman@br.ibm.com>
* gdb.python/python-function.exp: New file.
2009-03-21 03:03:56 +00:00
|
|
|
|
|
|
|
|
|
/* User function handler. */
|
|
|
|
|
|
* python/python-internal.h (struct language_defn): Declare.
(python_gdbarch, python_language): Likewise.
(ensure_python_env): Add prototype.
(make_cleanup_py_restore_gil): Remove prototype.
* python/python.c: Include "arch-utils.h", "value.h" and "language.h".
(python_gdbarch, python_language): New global variables.
(struct python_env): New data type.
(ensure_python_env, restore_python_env): New functions.
(eval_python_from_control_command): Call ensure_python_env to
install current architecture and language.
(python_command, gdbpy_new_objfile): Likewise.
* python/python-cmd.c: Include "arch-utils.h" and "language.h".
(cmdpy_destroyer, cmdpy_function, cmdpy_completer): Call
ensure_python_env.
* python/python-type.c (clean_up_objfile_types): Likewise.
* python/python-objfile.c: Include "language.h".
(clean_up_objfile): Call ensure_python_env.
* python/python-prettyprint.c (apply_val_pretty_printer): Likewise.
(apply_varobj_pretty_printer): Do not call PyGILState_Ensure.
* varobj.c (varobj_ensure_python_env): New helper function.
(varobj_get_display_hint, update_dynamic_varobj_children,
install_default_visualizer, varobj_set_visualizer, free_variable,
value_get_print_value): Call it.
(value_get_print_value): Add varobj argument instead of pretty
printer argument. Update all callers.
* python/python-utils.c (py_gil_restore, make_cleanup_py_restore_gil):
Remove.
* value.h (internal_function_fn): Add GDBARCH and LANGUAGE argument.
(call_internal_function): Likewise.
* value.c (call_internal_function): Likewise. Pass to handler.
* eval.c (evaluate_subexp_standard): Update call.
* python/python-function.c: Include "language.h".
(fnpy_call): Add GDBARCH and LANGAUAGE arguments and call
make_cleanup_python_env.
* python/python-value.c (builtin_type_pyint, builtin_type_pyfloat,
builtin_type_pylong, builtin_type_pybool, builtin_type_pychar,
valpy_str): Use python_gdbarch and python_language instead of
current_gdbarch and current_language.
* python/python-type.c (typy_lookup_typename): Likewise.
2009-07-02 17:04:23 +00:00
|
|
|
|
typedef struct value *(*internal_function_fn) (struct gdbarch *gdbarch,
|
|
|
|
|
const struct language_defn *language,
|
|
|
|
|
void *cookie,
|
gdb/
2009-03-05 Tom Tromey <tromey@redhat.com>
Add support for convenience functions in Python.
* Makefile.in (SUBDIR_PYTHON_OBS): Add python-function.o.
(SUBDIR_PYTHON_SRCS): Add python-function.c.
(python-function.o): New target.
* eval.c: Include "python/python.h" and <ctype.h>.
(evaluate_subexp_standard): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* gdbtypes.h (type_code): Add TYPE_CODE_INTERNAL_FUNCTION.
* parse.c (write_exp_string): Remove duplicate word in comment.
* python/python-function.c: New file.
* python/python-internal.h (gdbpy_initialize_functions): Add
prototype.
* python/python.c (_initialize_python): Call
gdbpy_initialize_functions.
* valprint.c (value_check_printable): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* value.c: Include "cli/cli-decode.h".
(internal_function): New struct.
(functionlist, internal_fn_type): New static variables.
(lookup_only_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(create_internalvar): Likewise. Initialize new field.
(set_internal_var): Fix typo in comment. Don't allow assignment
to canonical variable.
(value_create_internal_function, value_internal_function_name,
call_internal_function, function_command, function_destroyer,
add_internal_function): New functions.
(_initialize_values): Create `function' placeholder command.
Initialize internal_fn_type.
* value.h (lookup_only_internalvar, create_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(internal_function_fn, add_internal_function, call_internal_function,
value_internal_function_name): Add prototypes.
(struct internalvar) <canonical>: New field.
gdb/doc/
2008-03-05 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Convenience Vars): Document convenience functions.
(Functions In Python): New node.
(Python API): Update.
gdb/testsuite/
2009-03-05 Thiago Jung Bauermann <bauerman@br.ibm.com>
* gdb.python/python-function.exp: New file.
2009-03-21 03:03:56 +00:00
|
|
|
|
int argc,
|
|
|
|
|
struct value **argv);
|
|
|
|
|
|
|
|
|
|
void add_internal_function (const char *name, const char *doc,
|
|
|
|
|
internal_function_fn handler,
|
|
|
|
|
void *cookie);
|
|
|
|
|
|
* python/python-internal.h (struct language_defn): Declare.
(python_gdbarch, python_language): Likewise.
(ensure_python_env): Add prototype.
(make_cleanup_py_restore_gil): Remove prototype.
* python/python.c: Include "arch-utils.h", "value.h" and "language.h".
(python_gdbarch, python_language): New global variables.
(struct python_env): New data type.
(ensure_python_env, restore_python_env): New functions.
(eval_python_from_control_command): Call ensure_python_env to
install current architecture and language.
(python_command, gdbpy_new_objfile): Likewise.
* python/python-cmd.c: Include "arch-utils.h" and "language.h".
(cmdpy_destroyer, cmdpy_function, cmdpy_completer): Call
ensure_python_env.
* python/python-type.c (clean_up_objfile_types): Likewise.
* python/python-objfile.c: Include "language.h".
(clean_up_objfile): Call ensure_python_env.
* python/python-prettyprint.c (apply_val_pretty_printer): Likewise.
(apply_varobj_pretty_printer): Do not call PyGILState_Ensure.
* varobj.c (varobj_ensure_python_env): New helper function.
(varobj_get_display_hint, update_dynamic_varobj_children,
install_default_visualizer, varobj_set_visualizer, free_variable,
value_get_print_value): Call it.
(value_get_print_value): Add varobj argument instead of pretty
printer argument. Update all callers.
* python/python-utils.c (py_gil_restore, make_cleanup_py_restore_gil):
Remove.
* value.h (internal_function_fn): Add GDBARCH and LANGUAGE argument.
(call_internal_function): Likewise.
* value.c (call_internal_function): Likewise. Pass to handler.
* eval.c (evaluate_subexp_standard): Update call.
* python/python-function.c: Include "language.h".
(fnpy_call): Add GDBARCH and LANGAUAGE arguments and call
make_cleanup_python_env.
* python/python-value.c (builtin_type_pyint, builtin_type_pyfloat,
builtin_type_pylong, builtin_type_pybool, builtin_type_pychar,
valpy_str): Use python_gdbarch and python_language instead of
current_gdbarch and current_language.
* python/python-type.c (typy_lookup_typename): Likewise.
2009-07-02 17:04:23 +00:00
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struct value *call_internal_function (struct gdbarch *gdbarch,
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const struct language_defn *language,
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struct value *function,
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gdb/
2009-03-05 Tom Tromey <tromey@redhat.com>
Add support for convenience functions in Python.
* Makefile.in (SUBDIR_PYTHON_OBS): Add python-function.o.
(SUBDIR_PYTHON_SRCS): Add python-function.c.
(python-function.o): New target.
* eval.c: Include "python/python.h" and <ctype.h>.
(evaluate_subexp_standard): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* gdbtypes.h (type_code): Add TYPE_CODE_INTERNAL_FUNCTION.
* parse.c (write_exp_string): Remove duplicate word in comment.
* python/python-function.c: New file.
* python/python-internal.h (gdbpy_initialize_functions): Add
prototype.
* python/python.c (_initialize_python): Call
gdbpy_initialize_functions.
* valprint.c (value_check_printable): Handle values of type
TYPE_CODE_INTERNAL_FUNCTION.
* value.c: Include "cli/cli-decode.h".
(internal_function): New struct.
(functionlist, internal_fn_type): New static variables.
(lookup_only_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(create_internalvar): Likewise. Initialize new field.
(set_internal_var): Fix typo in comment. Don't allow assignment
to canonical variable.
(value_create_internal_function, value_internal_function_name,
call_internal_function, function_command, function_destroyer,
add_internal_function): New functions.
(_initialize_values): Create `function' placeholder command.
Initialize internal_fn_type.
* value.h (lookup_only_internalvar, create_internalvar,
lookup_internalvar): Add const qualifier to name argument.
(internal_function_fn, add_internal_function, call_internal_function,
value_internal_function_name): Add prototypes.
(struct internalvar) <canonical>: New field.
gdb/doc/
2008-03-05 Tom Tromey <tromey@redhat.com>
* gdb.texinfo (Convenience Vars): Document convenience functions.
(Functions In Python): New node.
(Python API): Update.
gdb/testsuite/
2009-03-05 Thiago Jung Bauermann <bauerman@br.ibm.com>
* gdb.python/python-function.exp: New file.
2009-03-21 03:03:56 +00:00
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int argc, struct value **argv);
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char *value_internal_function_name (struct value *);
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2014-05-20 13:30:29 +00:00
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extern struct value *value_of_xmethod (struct xmethod_worker *);
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2015-04-29 20:24:21 +00:00
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extern struct type *result_type_of_xmethod (struct value *method,
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int argc, struct value **argv);
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extern struct value *call_xmethod (struct value *method,
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int argc, struct value **argv);
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2014-05-20 13:30:29 +00:00
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1999-07-07 20:19:36 +00:00
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#endif /* !defined (VALUE_H) */
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