We are iterating over all symbols in a partial symtab that would
match a given name, so we should match the partial symbols
search name against the given name rather than using the natural
name. In C++, that does not make a difference, but it does in
Ada, because Ada searches using the symbol encoded name...
We also update the generation of the .gdb_index file to match this
change in the search. Although technically an incompatible change,
we do not increment the gdb_index version number, because Ada is
the only language where it would make a difference - except that
this feature is not supported for Ada.
gdb/ChangeLog:
* psymtab.c (expand_symtabs_matching_via_partial): Match
the partial symbols using their SYMBOL_SEARCH_NAME.
* symfile.h (struct quick_symbol_functions): Udate the
documentation of expand_symtabs_matching.
* dwarf2read.c (write_psymbols): Use SYMBOL_SEARCH_NAME instead
of SYMBOL_NATURAL_NAME in index entry.
PR threads/13448
* dwarf2read.c (decode_locdesc): Handle DW_OP_const8u.
For DW_OP_GNU_push_tls_address increment the value, new comment for it.
gdb/testsuite/
PR threads/13448
* gdb.dwarf2/dw2-var-zero-addr.S: New file.
* gdb.dwarf2/dw2-var-zero-addr.exp: New file.
* gdb.threads/tls-var-main.c: New file.
* gdb.threads/tls-var.c: New file.
* gdb.threads/tls-var.exp: New file.
PR breakpoints/13346
* dwarf2read.c (process_psymtab_comp_unit): Set
PSYMTABS_ADDRMAP_SUPPORTED.
* psympriv.h (struct partial_symtab): Comment textlow and texthigh
validity. New field psymtabs_addrmap_supported.
* psymtab.c (find_pc_sect_psymtab_closer): New gdb_assert on
psymtabs_addrmap_supported.
(find_pc_sect_psymtab): Do not fallback to TEXTLOW and TEXTHIGH for
!PSYMTABS_ADDRMAP_SUPPORTED.
(dump_psymtab, maintenance_info_psymtabs): Print also
psymtabs_addrmap_supported.
gdb/testsuite/
PR breakpoints/13346
* gdb.dwarf2/dw2-objfile-overlap-inner.S: New file.
* gdb.dwarf2/dw2-objfile-overlap-outer.S: New file.
* gdb.dwarf2/dw2-objfile-overlap.exp: New file.
arguments by adding OBJFILE. Instead of getting objfile from
symbol's symtab, use new argument OBJFILE.
* cp-support.h (cp_scan_for_anonymous_namespaces): Changed function
arguments by adding OBJFILE.
* gdb/dwarf2read.c (new_symbol_full): Change call to
cp_scan_for_anonymous_namespaces to match new signature.
* gdb/stabsread.c (define_symbol): Change call to
cp_scan_for_anonymous_namespaces to match new signature.
Revert:
2011-07-27 Jan Kratochvil <jan.kratochvil@redhat.com>
* dwarf2expr.c (ctx_no_read_reg): New function.
* dwarf2expr.h (ctx_no_read_reg): New declaration.
* dwarf2read.c (read_2_signed_bytes, read_4_signed_bytes): Remove.
(decode_locdesc_read_mem, decode_locdesc_ctx_funcs): New.
(decode_locdesc): Replace by a caller of dwarf_expr_eval.
gdb/testsuite/
* gdb.dwarf2/dw2-simple-locdesc.exp (p &s.shl): KFAIL it.
Revert the part of:
2011-07-27 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.dwarf2/dw2-stack-boundary.exp (check partial symtab errors):
Change the expected string.
Fix empty DWARF expressions DATA vs. SIZE conditionals.
* dwarf2loc.c (dwarf2_find_location_expression): Clear *LOCEXPR_LENGTH.
(dwarf_expr_frame_base_1): Indicate unavailability via zero *LENGTH.
(locexpr_tracepoint_var_ref): Check only zero SIZE, not zero DATA.
(loclist_read_variable, loclist_tracepoint_var_ref): Do not check for
zero DATA.
* dwarf2loc.h (struct dwarf2_locexpr_baton): Comment DATA vs. SIZE
validity.
* dwarf2read.c (struct dwarf_block): Comment DATA validity.
(dwarf2_fetch_die_location_block, dwarf2_symbol_mark_computed): Do not
clear DATA on zero SIZE.
gdb/testsuite/
Fix empty DWARF expressions DATA vs. SIZE conditionals.
* gdb.dwarf2/dw2-op-call.S (arraycallnoloc, arraynoloc): New DIEs.
(loclist): New.
(4): New abbrev.
* gdb.dwarf2/dw2-op-call.exp: Remove variable srcfile and executable.
Use prepare_for_testing, remove clean_restart.
(p arraynoloc, p arraycallnoloc): New tests.
Display @entry parameter values (without references).
* dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset):
New functions.
* dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset):
New declarations.
* dwarf2loc.c (dwarf2_find_location_expression): Support location list
entry record.
(dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry)
(value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New
functions.
(dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry.
(loclist_read_variable_at_entry): New function.
(dwarf2_loclist_funcs): Install loclist_read_variable_at_entry.
* dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in
DW_AT_location, call dwarf_block_to_sp_offset for it.
* frame.h (print_entry_values_no, print_entry_values_only)
(print_entry_values_preferred, print_entry_values_if_needed)
(print_entry_values_both, print_entry_values_compact)
(print_entry_values_default, print_entry_values): New declarations.
(struct frame_arg): New field entry_kind.
(read_frame_arg): New parameter entryargp.
* mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for
arg->entry_kind. Optionally print the `@entry' suffix.
(list_args_or_locals): New variable entryarg, initialize it.
Initialize also entry_kind of arg and entryarg. Conditionalize
list_arg_or_local for arg, add list_arg_or_local for entryarg. Call
xfree for entryarg.error.
* stack.c (print_entry_values_no, print_entry_values_only)
(print_entry_values_preferred, print_entry_values_if_needed)
(print_entry_values_both, print_entry_values_compact)
(print_entry_values_default, print_entry_values_choices)
(print_entry_values): New variables.
(print_frame_arg): New gdb_assert for arg->entry_kind. Optionally
print the `@entry' suffix, possibly in combination for
print_entry_values_compact.
(read_frame_arg): New parameter entryargp, new variables entryval,
entryval_error and val_equal. Read in also entryargp, respect
print_entry_values, compare the values using val_equal, fill in also
argp->entry_kind (together with entryargp->entry_kind).
(print_frame_args): New variable entryarg, initialize it.
Conditionalize print_frame_arg for arg, add print_frame_arg for
entryarg. Call xfree for entryarg.error.
(_initialize_stack): Call add_setshow_enum_cmd for `entry-values'.
* symtab.h (struct symbol_computed_ops): New field
read_variable_at_entry.
gdb/doc/
Display @entry parameter values (without references).
* gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call
example.
(Print Settings): New description of set print entry-values and show
print entry-values.
gdb/testsuite/
Display @entry parameter values (without references).
* gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2)
(different, validity, invalid): New functions.
(main): Call them.
* gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr,
stacktest, breakhere_stacktest, different, breakhere_different,
breakhere_validity and breakhere_invalid.
(entry: bt): Update for @entry.
(entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *)
(entry_validity: *, entry_invalid: *): Many new tests.
* gdb.base/break.exp
(run until breakpoint set at small function, optimized file): Accept
also the @entry suffix.
* gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value.
* gdb.mi/mi2-amd64-entry-value.c: New files.
* gdb.mi/mi2-amd64-entry-value.exp: New files.
Tail call sites reader implementation.
* dwarf2read.c (read_call_site_scope): Recognize DW_AT_GNU_tail_call,
fill in TYPE_TAIL_CALL_LIST.
* gdbtypes.h (struct func_type): New field tail_call_list.
(struct call_site): New field tail_call_next.
(TYPE_TAIL_CALL_LIST): New definition.
Implement basic support for DW_TAG_GNU_call_site.
* block.c: Include gdbtypes.h and exceptions.h.
(call_site_for_pc): New function.
* block.h (call_site_for_pc): New declaration.
* defs.h: Include hashtab.h.
(make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New
declarations.
* dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install
ctx_no_push_dwarf_reg_entry_value.
* dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL.
(dwarf_block_to_dwarf_reg): New function.
(execute_stack_op) <DW_OP_GNU_entry_value>: Implement it.
(ctx_no_push_dwarf_reg_entry_value): New function.
* dwarf2expr.h (struct dwarf_expr_context_funcs): New field
push_dwarf_reg_entry_value.
(ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New
declarations.
* dwarf2loc.c: Include gdbcmd.h.
(dwarf_expr_ctx_funcs): New forward declaration.
(entry_values_debug, show_entry_values_debug, call_site_to_target_addr)
(dwarf_expr_reg_to_entry_parameter)
(dwarf_expr_push_dwarf_reg_entry_value): New.
(dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value.
(dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR.
(needs_dwarf_reg_entry_value): New function.
(needs_frame_ctx_funcs): Install it.
(_initialize_dwarf2loc): New function.
* dwarf2loc.h (entry_values_debug): New declaration.
* dwarf2read.c (struct dwarf2_cu): New field call_site_htab.
(read_call_site_scope): New forward declaration.
(process_full_comp_unit): Copy call_site_htab.
(process_die): Support DW_TAG_GNU_call_site.
(read_call_site_scope): New function.
(dwarf2_get_pc_bounds): Support NULL HIGHPC.
(dwarf_tag_name): Support DW_TAG_GNU_call_site.
(cleanup_htab): Delete.
(write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it.
* exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR.
* gdb-gdb.py (StructMainTypePrettyPrinter): Support
FIELD_LOC_KIND_DWARF_BLOCK.
* gdbtypes.h (enum field_loc_kind): New entry
FIELD_LOC_KIND_DWARF_BLOCK.
(struct main_type): New loc entry dwarf_block.
(struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK)
(TYPE_FIELD_DWARF_BLOCK): New.
* python/py-type.c: Include dwarf2loc.h.
(check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New
internal_error call on unknown FIELD_LOC_KIND.
* symtab.h (struct symtab): New field call_site_htab.
* utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete)
(core_addr_hash, core_addr_eq): New functions.
gdb/testsuite/
Implement basic support for DW_TAG_GNU_call_site.
* gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value.
* gdb.arch/amd64-entry-value.cc: New file.
* gdb.arch/amd64-entry-value.exp: New file.
Code cleanup.
* dwarf2read.c (per_cu_header_read_in): New function.
(dwarf2_per_cu_addr_size, dwarf2_per_cu_offset_size): Use it, with new
variables cu_header_local and cu_headerp.
Fix initial language detection with -readnow.
* dwarf2read.c (dw2_find_symbol_file): Handle OBJF_READNOW case.
* symfile.h (struct quick_symbol_functions): State find_symbol_file
searches only for global symbols.
gdb/testsuite/
Fix initial language detection with -readnow.
* gdb.cp/readnow-language.cc: New file.
* gdb.cp/readnow-language.exp: New file.
Fix printed anonymous struct name.
* dwarf2read.c (fixup_partial_die): Handle for anonymous structs also
DW_TAG_interface_type. Strip for anonymous structs any prefixes.
(anonymous_struct_prefix): New function.
(determine_prefix): New variables retval. Call anonymous_struct_prefix.
(dwarf2_name): Strip for anonymous structs any prefixes.
gdb/testsuite/
Fix printed anonymous struct name.
* gdb.cp/anon-struct.exp (print type of X::t2): New test.
Remove excessive DWARF expressions memory duplication.
* dwarf2loc.c (per_cu_dwarf_call): Remove variable back_to and its use
for block.data.
(indirect_pieced_value): Remove variable result. Remove variable
back_to and its use for baton.data.
(dwarf2_compile_expr_to_ax): Remove variable back_to and its use for
block.data.
* dwarf2read.c (dwarf2_fetch_die_location_block): Remove xmemdup.
Update the function comment.
Code cleanup.
* amd64-tdep.c (amd64_skip_prologue): Move the XMM code to ...
(amd64_skip_xmm_prologue): ... this new function. Describe its
parameters. No longer use amd64_prologue_line_bug.
* defs.h (producer_is_gcc_ge_4): New declaration.
* dwarf2read.c (producer_is_gcc_ge_4): Move to utils.c.
(process_full_comp_unit): Update its caller. Remove
amd64_prologue_line_bug initialization.
* symtab.h (struct symtab): Remove field amd64_prologue_line_bug.
* utils.c (producer_is_gcc_ge_4): Moved here from dwarf2read.c.
PR breakpoints/12435
* amd64-tdep.c (amd64_skip_prologue): New variables start_pc_sal,
next_sal, buf, offset and xmmreg. Advance PC if it sees the PR.
* dwarf2read.c (process_full_comp_unit): Initialize
amd64_prologue_line_bug.
* symtab.h (struct symtab): New field amd64_prologue_line_bug.
gdb/testsuite/
PR breakpoints/12435
* gdb.arch/amd64-prologue-xmm.c: New file.
* gdb.arch/amd64-prologue-xmm.exp: New file.
* gdb.arch/amd64-prologue-xmm.s: New file.
* dwarf2read.c (read_indirect_string_at_offset): New function.
(read_indirect_string): Use it.
(dwarf_decode_macro_bytes): New function, taken from
dwarf_decode_macros. Handle DW_MACRO_GNU_*.
(dwarf_decode_macros): Use it. handle DW_MACRO_GNU_*.
(dwarf_parse_macro_header, skip_form_bytes, skip_unknown_opcode):
New functions.
(struct dwarf2_per_objfile) <macro>: New field.
(dwarf2_elf_names): Add .debug_macro.
(dwarf2_macros_too_long_complaint): Add 'section' argument.
(dwarf2_locate_sections): Handle new section.
(read_file_scope): Handle DW_AT_GNU_macros.
(dwarf2_per_objfile_free): Unmap the .debug_macro section.
* dwarf2read.c (dwarf2_section_info_def): New typedef.
(struct dwarf2_per_objfile) <types>: Change to a VEC.
(struct dwarf2_per_cu_data) <from_debug_types>: Remove.
<debug_type_section>: New field.
(dwarf2_locate_sections): Push .debug_types sections onto VEC.
(load_cu): Use appropriate section.
(create_signatured_type_table_from_index): Add 'section'
argument.
(dwarf2_read_index): Only allow a single .debug_types section.
(dw2_get_file_names): Use appropriate section.
(read_type_comp_unit_head): Add 'section' argument.
(create_debug_types_hash_table): Loop over all .debug_types
sections.
(init_cu_die_reader): Use appropriate section.
(process_psymtab_comp_unit, load_partial_comp_unit)
(load_full_comp_unit, read_die_and_children, find_partial_die)
(lookup_die_type, determine_prefix, follow_die_offset): Update.
(lookup_signatured_type_at_offset): Add 'section' argument.
(read_signatured_type_at_offset): Add 'sect' argument.
(read_signatured_type): Use appropriate section.
(set_die_type, get_die_type_at_offset): Update.
(dwarf2_per_objfile_free): Free all .debug_types sections, and
VEC.
(write_psymtabs_to_index): Don't allow index with more than one
.debug_types section.
Fix crash if referenced CU is aged out.
* dwarf2loc.c (per_cu_dwarf_call): New variable back_to, use to for
xfree of block.data.
(indirect_pieced_value): New variable back_to, use to for xfree of
baton.data.
(dwarf2_compile_expr_to_ax): New variable back_to, use to for xfree of
block.data.
* dwarf2read.c (dwarf2_find_base_address): New prototype.
(load_cu): New function from ...
(dw2_do_instantiate_symtab): ... the code here ...
(process_full_comp_unit): ... and here.
(dwarf2_fetch_die_location_block): Call load_cu first. Call xmemdup on
retval.data.
gdb/testsuite/
Fix crash if referenced CU is aged out.
* gdb.dwarf2/dw2-op-call.exp (maintenance set dwarf2 max-cache-age 0):
New.
* gdb.dwarf2/implptr.exp: Likewise.
