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DWARF has voted in recently https://dwarfstd.org/issues/241209.1.html ,
which is basically just a guarantee that the DWARF 6 draft
DW_AT_language_{name,version} attribute codes and content of
https://dwarfstd.org/languages-v6.html can be used as an extension
in DWARF 5 and won't be changed.
So, this patch is an alternative to the
https://gcc.gnu.org/pipermail/gcc-patches/2024-November/669671.html
patch, which had the major problem that it required changing all the
DWARF consumers to be able to debug C17 or later or C++17 or later
sources.
This patch uses still DWARF 5 DW_LANG_C11 or DW_LANG_C_plus_plus_14,
the latest code in DWARF 5 proper, so all DWARF 5 capable consumers
should be able to deal with that, but additionally emits the
DWARF 6 attributes so that newer DWARF consumers can see it isn't
just C++14 but say C++23 or C11 but C23. Consumers which don't know
those DWARF 6 attributes would just ignore them. This is like any other
-gno-strict-dwarf extension, except that normally we emit say DWARF 5
codes where possible only after DWARF 5 is released, while in this case
there is a guarantee it can be used before DWARF 6 is released.
2025-01-08 Jakub Jelinek <jakub@redhat.com>
include/
* dwarf2.h (enum dwarf_source_language): Fix comment pasto.
(enum dwarf_source_language_name): New type.
* dwarf2.def (DW_AT_language_name, DW_AT_language_version): New
DWARF 6 codes.
gcc/
* dwarf2out.cc (break_out_comdat_types): Copy over
DW_AT_language_{name,version} if present.
(output_skeleton_debug_sections): Remove also
DW_AT_language_{name,version}.
(gen_compile_unit_die): For C17, C23, C2Y, C++17, C++20, C++23
and C++26 emit for -gdwarf-5 -gno-strict-dwarf also
DW_AT_language_{name,version} attributes.
gcc/testsuite/
* g++.dg/debug/dwarf2/lang-cpp17.C: Add -gno-strict-dwarf to
dg-options. Check also for DW_AT_language_{name,version} values.
* g++.dg/debug/dwarf2/lang-cpp20.C: Likewise.
* g++.dg/debug/dwarf2/lang-cpp23.C: New test.
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https://dwarfstd.org/languages.html
Another DW_LANG_* code has been added recently...
2024-11-23 Jakub Jelinek <jakub@redhat.com>
* dwarf2.h (enum dwarf_source_language): Add DW_LANG_Fortran23
enumerator.
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DWARF changed the language code assignment to be on a web page and
after DWARF 5 has been published already 27 codes have been assigned.
We have some of those already in the header, but most of them were missing,
including one added just yesterday (DW_LANG_C23).
Note, this is really post-DWARF 5 stuff rather than DWARF 6, because
DWARF 6 plans to switch from DW_AT_language to DW_AT_language_{name,version}
pair where we'll say DW_LNAME_C with 202311 version instead of this.
2024-11-21 Jakub Jelinek <jakub@redhat.com>
* dwarf2.h (enum dwarf_source_language): Add comment where
the post DWARF 5 additions start. Refresh list from
https://dwarfstd.org/languages.html.
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Architecture-specific CFI directives are currently declared an processed
among others architecture-independent CFI directives in gcc/dwarf2* files.
This approach creates confusion, specifically in the case of DWARF
instructions in the vendor space and using the same instruction code.
Such a clash currently happen between DW_CFA_GNU_window_save (used on
SPARC) and DW_CFA_AARCH64_negate_ra_state (used on AArch64), and both
having the same instruction code 0x2d.
Then AArch64 compilers generates a SPARC CFI directive (.cfi_window_save)
instead of .cfi_negate_ra_state, contrarilly to what is expected in
[DWARF for the Arm 64-bit Architecture (AArch64)](https://github.com/
ARM-software/abi-aa/blob/main/aadwarf64/aadwarf64.rst).
This refactoring does not solve completely the problem, but improve the
situation by moving some of the processing of those directives (more
specifically their output in the assembly) to the backend via 2 target
hooks:
- DW_CFI_OPRND1_DESC: parse the first operand of the directive (if any).
- OUTPUT_CFI_DIRECTIVE: output the CFI directive as a string.
Additionally, this patch also contains a renaming of an enum used for
return address mangling on AArch64.
gcc/ChangeLog:
* config/aarch64/aarch64.cc
(aarch64_output_cfi_directive): New hook for CFI directives.
(aarch64_dw_cfi_oprnd1_desc): Same.
(TARGET_OUTPUT_CFI_DIRECTIVE): Hook for output_cfi_directive.
(TARGET_DW_CFI_OPRND1_DESC): Hook for dw_cfi_oprnd1_desc.
* config/sparc/sparc.cc
(sparc_output_cfi_directive): New hook for CFI directives.
(sparc_dw_cfi_oprnd1_desc): Same.
(TARGET_OUTPUT_CFI_DIRECTIVE): Hook for output_cfi_directive.
(TARGET_DW_CFI_OPRND1_DESC): Hook for dw_cfi_oprnd1_desc.
* coretypes.h
(struct dw_cfi_node): Forward declaration of CFI type from
gcc/dwarf2out.h.
(enum dw_cfi_oprnd_type): Same.
(enum dwarf_call_frame_info): Same.
* doc/tm.texi: Regenerated from doc/tm.texi.in.
* doc/tm.texi.in: Add doc for new target hooks.
type of enum to allow forward declaration.
* dwarf2cfi.cc
(struct dw_cfi_row): Update the description for window_save
and ra_mangled.
(dwarf2out_frame_debug_cfa_negate_ra_state): Use AArch64 CFI
directive instead of the SPARC one.
(change_cfi_row): Use the right CFI directive's name for RA
mangling.
(output_cfi): Remove explicit architecture-specific CFI
directive DW_CFA_GNU_window_save that falls into default case.
(output_cfi_directive): Use target hook as default.
* dwarf2out.cc (dw_cfi_oprnd1_desc): Use target hook as default.
* dwarf2out.h (enum dw_cfi_oprnd_type): specify underlying type
of enum to allow forward declaration.
(dw_cfi_oprnd1_desc): Call target hook.
(output_cfi_directive): Use dw_cfi_ref instead of struct
dw_cfi_node *.
* hooks.cc
(hook_bool_dwcfi_dwcfioprndtyperef_false): New.
(hook_bool_FILEptr_dwcfiptr_false): New.
* hooks.h
(hook_bool_dwcfi_dwcfioprndtyperef_false): New.
(hook_bool_FILEptr_dwcfiptr_false): New.
* target.def: Documentation for new hooks.
include/ChangeLog:
* dwarf2.h (enum dwarf_call_frame_info): specify underlying
libffi/ChangeLog:
* include/ffi_cfi.h (cfi_negate_ra_state): Declare AArch64 cfi
directive.
libgcc/ChangeLog:
* config/aarch64/aarch64-asm.h (PACIASP): Replace SPARC CFI
directive by AArch64 one.
(AUTIASP): Same.
libitm/ChangeLog:
* config/aarch64/sjlj.S: Replace SPARC CFI directive by
AArch64 one.
gcc/testsuite/ChangeLog:
* g++.target/aarch64/pr94515-1.C: Replace SPARC CFI directive by
AArch64 one.
* g++.target/aarch64/pr94515-2.C: Same.
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include
* dwarf2.h: Update with additional languages from dwarf
standard.
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This adds a get_DW_UT_name function to dwarfnames using dwarf2.def
for use in binutils readelf to show the unit types in a DWARF5 header.
Also remove DW_CIE_VERSION which was already removed in binutils/gdb
and is not used in gcc.
include/ChangeLog:
* dwarf2.def: Add DWARF5 Unit type header encoding macros
DW_UT_FIRST, DW_UT and DW_UT_END.
* dwarf2.h (enum dwarf_unit_type): Removed and define using
DW_UT_FIRST, DW_UT and DW_UT_END macros.
(DW_CIE_VERSION): Removed.
(get_DW_UT_name): New function declaration.
libiberty/ChangeLog:
* dwarfnames.c (get_DW_UT_name): Define using DW_UT_FIRST, DW_UT
and DW_UT_END.
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(Note: This patch has already been accepted/committed in binutils/GDB.
This will bring the same change into the GCC tree.)
For DWARF v5 Dwarf Package Files (.dwp files), the section identifier encodings
have changed. This patch updates dwarf2.h to contain the new
encodings. The table below shows the old & new encodings:
[ref http://dwarfstd.org/doc/DWARF5.pdf, section 7.3.5. ]
Val DW4 section DW4 section id DW5 section DW5 section id
--- ----------------- -------------- ----------------- --------------
1 .debug_info.dwo DW_SECT_INFO .debug_info.dwo DW_SECT_INFO
2 .debug_types.dwo DW_SECT_TYPES -- reserved
3 .debug_abbrev.dwo DW_SECT_ABBREV .debug_abbrev.dwo DW_SECT_ABBREV
4 .debug_line.dwo DW_SECT_LINE .debug_line.dwo DW_SECT_LINE
5 .debug_loc.dwo DW_SECT_LOC .debug_loclists.dwo DW_SECT_LOCLISTS
6 .debug_str_offsets.dwo .debug_str_offsets.dwo
DW_SECT_STR_OFFSETS DW_SECT_STR_OFFSETS
7 .debug_macinfo.dwo DW_SECT_MACINFO .debug_macro.dwo DW_SECT_MACRO
8 .debug_macro.dwo DW_SECT_MACRO .debug_rnglists.dwo DW_SECT_RNGLISTS
2020-09-09 Caroline Tice <cmtice@google.com>
include/
* dwarf2.h (enum dwarf_sect_v5): A new enum section for the
sections in a DWARF 5 DWP file (DWP version 5).
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From-SVN: r279813
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From-SVN: r267494
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This patch introduces an option to enable the generation of location
views along with location lists. The exact format depends on the
DWARF version: it can be a separate attribute (DW_AT_GNU_locviews) or
(DW_LLE_view_pair) entries in DWARF5+ loclists.
Line number tables are also affected. If the assembler is found, at
compiler build time, to support .loc views, we use them and
assembler-computed view labels, otherwise we output compiler-generated
line number programs with conservatively-computed view labels. In
either case, we output view information next to line number changes
when verbose assembly output is requested.
This patch requires an LVU patch that modifies the exported API of
final_scan_insn. It also expects the entire SFN patchset to be
installed first, although SFN is not a requirement for LVU.
for include/ChangeLog
* dwarf2.def (DW_AT_GNU_locviews): New.
* dwarf2.h (enum dwarf_location_list_entry_type): Add
DW_LLE_GNU_view_pair.
(DW_LLE_view_pair): Define.
for gcc/ChangeLog
* common.opt (gvariable-location-views): New.
(gvariable-location-views=incompat5): New.
* config.in: Rebuilt.
* configure: Rebuilt.
* configure.ac: Test assembler for view support.
* dwarf2asm.c (dw2_asm_output_symname_uleb128): New.
* dwarf2asm.h (dw2_asm_output_symname_uleb128): Declare.
* dwarf2out.c (var_loc_view): New typedef.
(struct dw_loc_list_struct): Add vl_symbol, vbegin, vend.
(dwarf2out_locviews_in_attribute): New.
(dwarf2out_locviews_in_loclist): New.
(dw_val_equal_p): Compare val_view_list of dw_val_class_view_lists.
(enum dw_line_info_opcode): Add LI_adv_address.
(struct dw_line_info_table): Add view.
(RESET_NEXT_VIEW, RESETTING_VIEW_P): New macros.
(DWARF2_ASM_VIEW_DEBUG_INFO): Define default.
(zero_view_p): New variable.
(ZERO_VIEW_P): New macro.
(output_asm_line_debug_info): New.
(struct var_loc_node): Add view.
(add_AT_view_list, AT_loc_list): New.
(add_var_loc_to_decl): Add view param. Test it against last.
(new_loc_list): Add view params. Record them.
(AT_loc_list_ptr): Handle loc and view lists.
(view_list_to_loc_list_val_node): New.
(print_dw_val): Handle dw_val_class_view_list.
(size_of_die): Likewise.
(value_format): Likewise.
(loc_list_has_views): New.
(gen_llsym): Set vl_symbol too.
(maybe_gen_llsym, skip_loc_list_entry): New.
(dwarf2out_maybe_output_loclist_view_pair): New.
(output_loc_list): Output view list or entries too.
(output_view_list_offset): New.
(output_die): Handle dw_val_class_view_list.
(output_dwarf_version): New.
(output_compilation_unit_header): Use it.
(output_skeleton_debug_sections): Likewise.
(output_rnglists, output_line_info): Likewise.
(output_pubnames, output_aranges): Update version comments.
(output_one_line_info_table): Output view numbers in asm comments.
(dw_loc_list): Determine current endview, pass it to new_loc_list.
Call maybe_gen_llsym.
(loc_list_from_tree_1): Adjust.
(add_AT_location_description): Create view list attribute if
needed, check it's absent otherwise.
(convert_cfa_to_fb_loc_list): Adjust.
(maybe_emit_file): Call output_asm_line_debug_info for test.
(dwarf2out_var_location): Reset views as needed. Precompute
add_var_loc_to_decl args. Call get_attr_min_length only if we have the
attribute. Set view.
(new_line_info_table): Reset next view.
(set_cur_line_info_table): Call output_asm_line_debug_info for test.
(dwarf2out_source_line): Likewise. Output view resets and labels to
the assembler, or select appropriate line info opcodes.
(prune_unused_types_walk_attribs): Handle dw_val_class_view_list.
(optimize_string_length): Catch it. Adjust.
(resolve_addr): Copy vl_symbol along with ll_symbol. Handle
dw_val_class_view_list, and remove it if no longer needed.
(hash_loc_list): Hash view numbers.
(loc_list_hasher::equal): Compare them.
(optimize_location_lists): Check whether a view list symbol is
needed, and whether the locview attribute is present, and
whether they match. Remove the locview attribute if no longer
needed.
(index_location_lists): Call skip_loc_list_entry for test.
(dwarf2out_finish): Call output_asm_line_debug_info for test.
Use output_dwarf_version.
* dwarf2out.h (enum dw_val_class): Add dw_val_class_view_list.
(struct dw_val_node): Add val_view_list.
* final.c (SEEN_NEXT_VIEW): New.
(set_next_view_needed): New.
(clear_next_view_needed): New.
(maybe_output_next_view): New.
(final_start_function): Rename to...
(final_start_function_1): ... this. Take pointer to FIRST,
add SEEN parameter. Emit param bindings in the initial view.
(final_start_function): Reintroduce SEEN-less interface.
(final): Rename to...
(final_1): ... this. Take SEEN parameter. Output final pending
next view at the end.
(final): Reintroduce seen-less interface.
(final_scan_insn): Output pending next view before switching
sections or ending a block. Mark the next view as needed when
outputting variable locations. Notify debug backend of section
changes, and of location view changes.
(rest_of_handle_final): Adjust.
* toplev.c (process_options): Autodetect value for debug variable
location views option. Warn on incompat5 without -gdwarf-5.
* doc/invoke.texi (gvariable-location-views): New.
(gvariable-location-views=incompat5): New.
(gno-variable-location-views): New.
From-SVN: r257510
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From-SVN: r256169
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A new vendor CFA DW_CFA_AARCH64_negate_ra_state was introduced for ARMv8.3-A
return address signing, it is multiplexing DW_CFA_GNU_window_save in CFA vendor
extension space.
This patch adds necessary code to make it available to external, the GDB
patch (https://sourceware.org/ml/gdb-patches/2017-08/msg00215.html) is intended
to use it.
A new DW_CFA_DUP for it is added in dwarf2.def. The use of DW_CFA_DUP is to
avoid duplicated case value issue when included in libiberty/dwarfnames.
Native x86 builds OK to make sure no macro expanding errors.
Committed on behalf of Jiong Wang.
include/
* dwarf2.def (DW_CFA_AARCH64_negate_ra_state): New DW_CFA_DUP.
* dwarf2.h (DW_CFA_DUP): New define.
libiberty/
* dwarfnames.c (DW_CFA_DUP): New define.
From-SVN: r252037
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2017-07-02 Jan Kratochvil <jan.kratochvil@redhat.com>
* dwarf2.def (DW_IDX_compile_unit, DW_IDX_type_unit, DW_IDX_die_offset)
(DW_IDX_parent, DW_IDX_type_hash, DW_IDX_lo_user, DW_IDX_hi_user)
(DW_IDX_GNU_internal, DW_IDX_GNU_external): New.
* dwarf2.h (DW_IDX, DW_IDX_DUP, DW_FIRST_IDX, DW_END_IDX): New.
(enum dwarf_name_index_attribute): Remove.
(get_DW_IDX_name): New declaration.
libiberty/ChangeLog
2017-07-02 Jan Kratochvil <jan.kratochvil@redhat.com>
* dwarfnames.c (DW_FIRST_IDX, DW_END_IDX, DW_IDX, DW_IDX_DUP): New.
From-SVN: r249883
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From-SVN: r244052
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codes.
* dwarf2.h (enum dwarf_calling_convention): Add new DWARF5
calling convention codes.
(enum dwarf_line_number_content_type): New.
(enum dwarf_location_list_entry_type): Add DWARF5 DW_LLE_*
codes.
(enum dwarf_source_language): Add new DWARF5 DW_LANG_* codes.
(enum dwarf_macro_record_type): Add DWARF5 DW_MACRO_* codes.
(enum dwarf_name_index_attribute): New.
(enum dwarf_range_list_entry): New.
(enum dwarf_unit_type): New.
* dwarf2.def: Add new DWARF5 DW_TAG_*, DW_FORM_*, DW_AT_*,
DW_OP_* and DW_ATE_* entries.
From-SVN: r241272
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This implements <http://dwarfstd.org/ShowIssue.php?issue=141215.3>, a
proposal already accepted for inclusion in DWARF-5, but using
DW_AT_GNU_defaulted instead of DW_AT_defaulted as the attribute name,
because the attribute id for DW_AT_defaulted is not yet publicly
available.
for include/ChangeLog
PR debug/63240
* dwarf2.def (DW_AT_deleted, DW_AT_defaulted): New.
* dwarf2.h (enu dwarf_defaulted_attribute): New.
for gcc/ChangeLog
PR debug/63240
* langhooks-def.h
(LANG_HOOKS_FUNCTION_DECL_EXPLICIT_P): Const_tree-ify.
(LANG_HOOKS_FUNCTION_DECL_DELETED_P): Likewise.
(LANG_HOOKS_FUNCTION_DECL_DEFAULTED): Set default.
(LANG_HOOKS_DECLS): Add it.
* langhooks.h (struct lang_hooks_for_decls): Add
function_decl_defaulted. Const_tree-ify
function_decl_explicit_p and function_decl_deleted_p.
* dwarf2out.c (gen_subprogram_die): Add DW_AT_defaulted
attribute. Add DW_AT_deleted instead of DW_AT_GNU_deleted,
also at strict DWARF v5.
for gcc/cp/ChangeLog
PR debug/63240
* cp-objcp-common.c (cp_function_decl_defaulted): New.
(cp_function_decl_explicit_p): Const_tree-ify.
(cp_function_decl_deleted_p): Likewise.
* cp-objcp-common.h (cp_function_decl_defaulted): Declare.
(cp_function_decl_explicit_p): Const_tree-ify.
(cp_function_decl_deleted_p): Likewise.
(LANG_HOOKS_FUNCTION_DECL_DEFAULTED): Redefine.
for gcc/testsuite/ChangeLog
PR debug/63240
* g++.dg/debug/dwarf2/defaulted-member-function-1.C: New.
* g++.dg/debug/dwarf2/defaulted-member-function-2.C: New.
* g++.dg/debug/dwarf2/defaulted-member-function-3.C: New.
* g++.dg/debug/dwarf2/deleted-member-function.C: Expect
DW_AT_deleted.
From-SVN: r239403
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include/
* dwarf2.h (enum dwarf_source_language) <DW_LANG_Rust,
DW_LANG_Rust_old>: New constants.
From-SVN: r235643
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From-SVN: r225781
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DW_LANG_Fortran08.
include/
* dwarf2.h (enum dwarf_source_language): Add DW_LANG_Fortran03
and DW_LANG_Fortran08.
gcc/
* dwarf2out.c (is_fortran): Also return true for DW_LANG_Fortran03
or DW_LANG_Fortran08.
(lower_bound_default): Return 1 for DW_LANG_Fortran03 or
DW_LANG_Fortran08.
(gen_compile_unit_die): Handle "GNU Fortran2003" and
"GNU Fortran2008" language strings.
* dbxout.c (get_lang_number): Use lang_GNU_Fortran.
* langhooks.h (lang_GNU_Fortran): New prototype.
* langhooks.c (lang_GNU_Fortran): New function.
* config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
lang_GNU_Fortran.
gcc/fortran/
* options.c: Include langhooks.h.
(gfc_post_options): Change lang_hooks.name based on
selected -std= mode.
From-SVN: r220422
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Add experimental (minimal) DWARFv5 support.
This change depends on the new DWARFv5 constants mentioned in the
following draft: http://dwarfstd.org/doc/dwarf5.20141029.pdf
gcc/ChangeLog
* doc/invoke.texi (-gdwarf-@{version}): Mention experimental DWARFv5.
* opts.c (common_handle_option): Accept -gdwarf-5.
* dwarf2out.c (is_cxx): Add DW_LANG_C_plus_plus_11 and
DW_LANG_C_plus_plus_14.
(lower_bound_default): Likewise. Plus DW_LANG_C11.
(gen_compile_unit_die): Output DW_LANG_C_plus_plus_11,
DW_LANG_C_plus_plus_14 or DW_LANG_C11.
(output_compilation_unit_header): Output at most a DWARFv4 header.
(output_skeleton_debug_sections): Likewise.
(output_line_info): Likewise.
(output_aranges): Document header version number.
gcc/testsuite/ChangeLog
* gcc.dg/debug/dwarf2/lang-c11.c: New test.
* gcc.dg/debug/dwarf2/lang-c11-d4-strict.c: Likewise.
* g++.dg/debug/dwarf2/lang-cpp11.C: Likewise.
* g++.dg/debug/dwarf2/lang-cpp14.C: Likewise.
* g++.dg/debug/dwarf2/lang-cpp98.C: Likewise.
include/ChangeLog
* dwarf2.h: Add DW_LANG_C_plus_plus_11, DW_LANG_C11 and
DW_LANG_C_plus_plus_14.
From-SVN: r218077
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include/
* dwarf2.h (enum dwarf_sect): New enum type.
From-SVN: r196400
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gcc/ChangeLog
2012-11-06 Sterling Augustine <saugustine@google.com>
Cary Coutant <ccoutant@google.com>
* common.opt (gno-split-dwarf, gsplit-dwarf): New switches.
* doc/invoke.texi (Debugging Options): Document them.
* gcc.c (replace_extension_spec_func): New function.
(ASM_FINAL_SPEC): Adjust.
(static_spec_functions): Add new field for replace-extension.
(check_live_switch): Adjust comment. Add case for 'g'.
* opts.c (finish_options): Set x_debug_generate_pub_sections based on
x_dwarf_split_debug_info.
(common_handle_option): Add case for OPT_gsplit_dwarf.
* dwarf2out.h (addr_table_entry_struct): Add forward declaration.
(dw_val_struct): Add val_entry pointer.
* dwarf2out.c: (debug_skeleton_info_section,
debug_skeleton_abbrev_section, debug_addr_section,
debug_skeleton_line_section, debug_str_offsets_section): New globals.
(NOT_INDEXED, NO_INDEX_ASSIGNED): New defines.
(indirect_string_node): New field index.
(ate_kind): New enum with fields ate_kind_rtc, ate_kind_rtx_dtprel,
ate_kind_label.
(addr_table_entry): New structure and type.
(dw_loc_list_struct): Add field begin_entry.
(new_loc_desc): Initialize val_entry.
(size_of_loc_descr, output_loc_operands, output_loc_operands_raw):
Add cases for DW_OP_GNU_addr_index and DW_OP_const_index.
(build_cfa_loc): Initialize val_entry.
(AT_index, add_addr_table_entry, remove_addr_table_entry,
add_AT_lbl_id): New functions.
(add_AT_addr, add_AT_range_list): New parameter force_direct.
(output_die_abbrevs): New function.
(add_ranges_by_labels): New parameter force_direct.
(output_line_info): New parameter prologue_only.
(dtprel_bool): New enum with dtprel_false and dtprel_true.
(dw_addr_op, new_addr_loc_descr): New functions.
(DEBUG_DWO_INFO_SECTION, DEBUG_DWO_ABBREV_SECTION,
DEBUG_ADDR_SECTION, DEBUG_NORM_MACINFO_SECTION,
DEBUG_DWO_MACINFO_SECTION, DEBUG_MACINFO_SECTION,
DEBUG_NORM_MACRO_SECTION, DEBUG_DWO_MACRO_SECTION,
DEBUG_MACRO_SECTION, DEBUG_DWO_LINE_SECTION,
DEBUG_DWO_LOC_SECTION, DEBUG_NORM_STR_OFFSETS_SECTION,
DEBUG_DWO_STR_OFFSETS_SECTION, DEBUG_STR_OFFSETS_SECTION,
DEBUG_DWO_STR_SECTION, DEBUG_NORM_STR_SECTION, DEBUG_STR_SECTION,
DEBUG_MACRO_SECTION_FLAGS, DEBUG_SKELETON_LINE_SECTION_LABEL,
DEBUG_SKELETON_INFO_SECTION_LABEL, DEBUG_ADDR_SECTION_LABEL
DEBUG_SKELETON_ABBREV_SECTION_LABEL): New macros.
(DEBUG_STR_SECTION_FLAGS): Adjust.
(TEXT_SECTION_LABEL, COLD_TEXT_SECTION_LABEL,
DEBUG_LINE_SECTION_LABEL, DEBUG_INFO_SECTION_LABEL,
DEBUG_ABBREV_SECTION_LABEL, DEBUG_ADDR_SECTION_LABEL,
DEBUG_LOC_SECTION_LABEL, DEBUG_RANGES_SECTION_LABEL,
DEBUG_MACINFO_SECTION_LABEL, DEBUG_MACRO_SECTION_LABEL): Adjust
indentation.
(debug_skeleton_abbrev_section_label, debug_addr_section_label,
debug_skeleton_line_section_label, debug_skeleton_info_section_label):
New global variables.
(add_AT_flag, add_AT_int, add_AT_unsigned, add_AT_double, add_AT_vec,
add_AT_data8): Initialize val_entry.
(add_AT_low_high_pc): New parameter force_direct. Handle
dwarf_split_debug_info.
(set_indirect_string, find_AT_string_form): New functions.
(AT_string_form): Adjust to call find_AT_string_from.
(add_AT_die_ref, add_AT_fde_ref, add_AT_loc, add_AT_list):
Initialize val_entry.
(addr_index_table): New global variable.
(addr_table_entry_do_hash, addr_table_entry_eq, add_addr_table_entry,
init_addr_table_entry, remove_addr_table_entry, index_addr_table_entry,
remove_loc_list_addr_table_entries): New functions.
(add_AT_addr, add_AT_lbl_id, add_AT_range_list): New parameter
force_direct. Handle dwarf_split_debug_info.
(add_AT_file, add_AT_vms_delta, add_AT_lineptr, add_AT_macptr,
add_AT_offset): Initialize val_entry.
(UNRELOCATED_OFFSET, RELOCATED_OFFSET): New defines.
(size_of_die): Handle dwarf_split_debug_info.
(size_of_aranges, value_format): Call AT_class. Check AT_index.
(output_die_abbrevs): New function.
(output_abbrev_section): Call output_die_abbrevs.
(new_loc_list): Initialize begin_entry.
(output_loc_list): Handle dwarf_split_debug_info.
(output_range_list_offset, output_loc_list_offset,
output_attr_index_or_value, ): New functions.
(output_die): Fix call to dw2_asm_output_data. Call
output_attr_index_or_value and output_range_list_offset.
Adjust logic around dw_val_class_str.
(add_top_lebel_skeleton_die_attrs, get_skeleton_type_unit,
output_skeleton_debug_sections): New functions.
(output_comdat_type_unit, output_pubname, output_aranges): Handle
dwarf_split_debug_info.
(add_ranges_by_labels): New parameter force_direct.
(mem_loc_descriptor, loc_descr): Call new_addr_loc_descr.
(loc_list_from_tree, add_const_value_attribtue): Use dtprel_bools in
place of generic integer.
(dwarf2out_vms_debug_main_pointer, gen_entry_point_die, gen_label_die,
gen_call_site_die, gen_subprogram_die, gen_variable_die,
add_high_low_attributes): Adjust calls to add_AT_lbl_id.
(output_macinfo_op): Adjust indirect_string_logic.
(save_macinfo_strings): New function.
(output_macinfo): Adjust.
(dwarf2out_init): Handle dwarf_split_debug_info.
(index_string, output_index_string_offset, output_index_string): New
functions.
(output_indirect_string): Adjust.
(output_indirect_strings, output_addr_table_entry, output_addr_table):
New functions.
(resolve_addr_in_expr, hash_loc_operands): Handle DW_OP_GNU_addr_index
and DW_OP_GNU_const_index. Handle dwarf_split_debug_info. Call
remove_loc_list_addr_table_entries and remove_addr_table_entry.
(index_location_lists): New function.
(dwarf2out_finish): Handle dwarf_split_debug_info. New variable
main_comp_unit_die. Adjust calls to add_AT_low_high_pc,
add_ranges_by_labels, add_AT_addr, and add_AT_lineptr. Call
save_macinfo_strings and output_indirect_strings.
include/ChangeLog
2012-10-29 Sterling Augustine <saugustine@google.com>
Cary Coutant <ccoutant@google.com>
* dwarf2.h (dwarf_location_list_entry_type): New enum with fields
DW_LLE_GNU_end_of_list_entry, DW_LLE_GNU_base_address_selection_entry,
DW_LLE_GNU_start_end_entry and DW_LLE_GNU_start_length_entry.
Co-Authored-By: Cary Coutant <ccoutant@google.com>
From-SVN: r193267
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From-SVN: r188338
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* dwarf2.def (DW_FORM_GNU_ref_alt, DW_FORM_GNU_strp_alt): New
forms.
* dwarf2.h (enum dwarf_macro_record_type): Add
DW_MACRO_GNU_define_indirect_alt, DW_MACRO_GNU_undef_indirect_alt
and DW_MACRO_GNU_transparent_include_alt.
From-SVN: r188337
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From-SVN: r186918
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gcc
* dwarf2out.c (dwarf_stack_op_name): Use get_DW_OP_name.
(dwarf_tag_name): Use get_DW_TAG_name.
(dwarf_attr_name): Use get_DW_AT_name.
(dwarf_form_name): Use get_DW_FORM_name.
* dwarf2cfi.c (dwarf_cfi_name): Use get_DW_CFA_name.
include
* dwarf2.h (enum dwarf_tag, enum dwarf_form, enum dwarf_attribute)
(enum dwarf_location_atom, enum dwarf_type, enum
dwarf_call_frame_info): Remove.
(DW_TAG, DW_TAG_DUP, DW_FORM, DW_AT, DW_AT_DUP, DW_OP)
(DW_OP_DUP, DW_ATE, DW_ATE_DUP, DW_CFA): New macros.
Include dwarf2.def.
(get_DW_TAG_name, get_DW_AT_name, get_DW_FORM_name)
(get_DW_OP_name, get_DW_ATE_name): Declare.
* dwarf2.def: New file, from dwarf2.h.
libiberty
* dwarfnames.c: New file.
* Makefile.in (CFILES): Add dwarfnames.
(REQUIRED_OFILES): Add dwarfnames.
(./dwarfnames.$(objext)): New target.
From-SVN: r186908
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* dwarf2.h (enum dwarf_form): Add Fission extensions.
(enum dwarf_attribute): Likewise.
From-SVN: r183588
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* dwarf2.h (DW_AT_GNU_macros): New.
(enum dwarf_macro_record_type): New enum. Add DW_MACRO_GNU_*.
* dwarf2out.c (struct macinfo_struct): Change code to unsigned char.
(DEBUG_MACRO_SECTION, DEBUG_MACRO_SECTION_LABEL): Define.
(dwarf_attr_name): Handle DW_AT_GNU_macros.
(dwarf2out_define): If the vector is empty and
lineno is 0, emit a dummy entry first.
(dwarf2out_undef): Likewise. Remove redundant semicolon.
(htab_macinfo_hash, htab_macinfo_eq, output_macinfo_op,
optimize_macinfo_range): New functions.
(output_macinfo): Use them. If !dwarf_strict and .debug_str is
mergeable, optimize longer strings using
DW_MACRO_GNU_{define,undef}_indirect and if HAVE_COMDAT_GROUP,
optimize longer sequences of define/undef ops from headers
using DW_MACRO_GNU_transparent_include. For !dwarf_strict
emit a section headers.
(dwarf2out_init): For !dwarf_strict set debug_macinfo_section
and macinfo_section_label to DEBUG_MACRO_SECTION
resp. DEBUG_MACRO_SECTION_LABEL.
(dwarf2out_finish): For !dwarf_strict emit DW_AT_GNU_macros
instead of DW_AT_macro_info.
From-SVN: r176653
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PR debug/47858
* gimple.h (enum gimple_debug_subcode): Add GIMPLE_DEBUG_SOURCE_BIND.
(gimple_build_debug_source_bind_stat): New prototype.
(gimple_build_debug_source_bind): Define.
(gimple_debug_source_bind_p, gimple_debug_source_bind_get_var,
gimple_debug_source_bind_get_value,
gimple_debug_source_bind_get_value_ptr,
gimple_debug_source_bind_set_var,
gimple_debug_source_bind_set_value): New inlines.
* gimple.c (gimple_build_debug_source_bind_stat): New function.
* gimple-pretty-print.c (dump_gimple_debug): Handle
GIMPLE_DEBUG_SOURCE_BIND.
* sese.c (rename_uses): Handle gimple_debug_source_bind_p.
* tree-ssa-dce.c (mark_stmt_if_obviously_necessary): Likewise.
* tree-parloops.c (eliminate_local_variables,
separate_decls_in_region): Likewise.
(separate_decls_in_region_debug): Renamed from
separate_decls_in_region_debug_bind. Handle
gimple_debug_source_bind_p.
* tree.h (decl_debug_args_lookup, decl_debug_args_insert): New
prototypes.
(DECL_HAS_DEBUG_ARGS_P): Define.
(struct tree_function_decl): Add has_debug_args_flag field.
* tree.c (debug_args_for_decl): New variable.
(decl_debug_args_lookup, decl_debug_args_insert): New functions.
* tree-into-ssa.c (mark_def_sites): Handle uses in debug stmts.
(rewrite_debug_stmt_uses): New function.
(rewrite_stmt): Use it to rewrite debug stmt uses.
* rtl.def (DEBUG_PARAMETER_REF): New.
* rtl.h (DEBUG_PARAMETER_REF_DECL): Define.
* cselib.c (rtx_equal_for_cselib_1, cselib_hash_rtx): Handle
DEBUG_PARAMETER_REF.
* rtl.c (rtx_equal_p_cb, rtx_equal_p, iterative_hash_rtx): Likewise.
* print-rtl.c (print_rtx): Likewise.
* tree-sra.c (sra_ipa_reset_debug_stmts): Prefer replacing of
SSA_NAMEs with DEBUG_EXPR_DECLs initialized in source bind
debug stmts in the first bb.
* tree-inline.c (remap_ssa_name): If remapping default def
of a PARM_DECL fails, map to a DEBUG_EXPR_DECL set in
a source bind debug stmt.
(remap_gimple_stmt): Handle gimple_debug_source_bind_p.
(maybe_move_debug_stmts_to_successors): Likewise.
(copy_debug_stmt): Likewise. Avoid shadowing a variable.
(tree_function_versioning): If DECL_HAS_DEBUG_ARGS_P, copy
debug args vector from old_decl to new_decl.
* ipa-prop.c (ipa_modify_call_arguments): For optimized away
or modified parameters, add debug bind stmts before call
setting DEBUG_EXPR_DECL which is remembered in debug args
vector.
* cfgexpand.c (expand_call_stmt): Call expand_debug_expr
on DECL_DEBUG_EXPRs from debug args vector.
(expand_debug_source_expr): New function.
(expand_debug_locations): Use it for source bind insns.
(expand_gimple_basic_block): Handle gimple_debug_source_bind_p.
* var-tracking.c (prepare_call_arguments): Add debug args
to call_arguments if any.
* dwarf2out.c (dwarf_stack_op_name, size_of_loc_descr,
output_loc_operands, output_loc_operands_raw,
resolve_addr_in_expr, compare_loc_operands): Handle
DW_OP_GNU_parameter_ref.
(get_ref_die_offset, parameter_ref_descriptor): New functions.
(mem_loc_descriptor): Handle DEBUG_PARAMETER_REF.
(gen_subprogram_die): Handle parameters identified by
DEBUG_PARAMETER_REF.
* dwarf2.h (enum dwarf_location_atom): Add DW_OP_GNU_parameter_ref.
From-SVN: r175288
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* dwarf2.h (DW_OP_GNU_const_type, DW_OP_GNU_regval_type,
DW_OP_GNU_deref_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret): New.
* dwarf2out.c (get_address_mode): New inline.
(mem_loc_descriptor): Add MEM_MODE parameter, adjust recursive calls,
if not dwarf_strict emit
DW_OP_GNU_{{const,regval,deref}_type,convert,reinterpret} when
desirable. Handle FLOAT_EXTEND, FLOAT_TRUNCATE, FLOAT,
UNSIGNED_FLOAT, FIX and UNSIGNED_FIX. Just return NULL for
FMA, STRICT_LOW_PART, CONST_VECTOR and CONST_FIXED.
(dwarf2out_frame_debug_cfa_expression, reg_loc_descriptor,
dw_loc_list_1, cst_pool_loc_descr, loc_list_from_tree): Adjust
mem_loc_descriptor callers.
(dwarf_stack_op_name, size_of_loc_descr, output_loc_operands,
output_loc_operands_raw, hash_loc_operands, compare_loc_operands):
Handle DW_OP_GNU_const_type, DW_OP_GNU_regval_type,
DW_OP_GNU_deref_type, DW_OP_GNU_convert and DW_OP_GNU_reinterpret.
(base_types): New variable.
(get_base_type_offset, calc_base_type_die_sizes,
base_type_for_mode, mark_base_types, base_type_cmp,
move_marked_base_types): New functions.
(calc_die_sizes): Assert that die_offset is 0 or equal to
next_die_offset.
(loc_descriptor): Only handle here lowpart SUBREGs of REG, for
others defer to mem_loc_descriptor. Adjust mem_loc_descriptor
callers. If not dwarf_strict, call mem_loc_descriptor even for
non-MODE_INT modes or MODE_INT modes larger than DWARF2_ADDR_SIZE.
(gen_subprogram_die): Don't give up on call site parameters
with non-integral or large integral modes. Adjust
mem_loc_descriptor callers.
(prune_unused_types): Call prune_unused_types_mark on base_types
vector entries.
(resolve_addr): Call mark_base_types.
(dwarf2out_finish): Call move_marked_base_types.
From-SVN: r173210
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2011-03-31 Tristan Gingold <gingold@adacore.com>
* dwarf2.h (dwarf_line_number_hp_sfc_ops): New enum.
From-SVN: r171781
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* dwarf2.h (dwarf_form): Remove deprecated DW_FORM_sig8 define.
* dwarf2out.c (size_of_die): Modify comment to say DW_FORM_ref_sig8.
(value_format): Use DW_FORM_ref_sig8, not DW_FORM_sig8.
From-SVN: r171442
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* final.c (final_scan_insn): Handle NOTE_INSN_CALL_ARG_LOCATION.
Call var_location debug hook even on CALL_INSNs.
(rest_of_clean_state): Don't print NOTE_INSN_CALL_ARG_LOCATION.
* rtl.def (ENTRY_VALUE): New.
* dwarf2out.c: Include cfglayout.h.
(dwarf_stack_op_name, size_of_loc_descr, output_loc_operands,
output_loc_operands_raw): Handle DW_OP_GNU_entry_value.
(struct call_arg_loc_node): New type.
(call_arg_locations, call_arg_loc_last, block_map, call_site_count,
tail_call_site_count): New variables.
(dwarf_tag_name): Handle DW_TAG_GNU_call_site and
DW_TAG_GNU_call_site_parameter.
(dwarf_attr_name): Handle DW_AT_GNU_call_site_value,
DW_AT_GNU_call_site_data_value, DW_AT_GNU_call_site_target,
DW_AT_GNU_call_site_target_clobbered, DW_AT_GNU_tail_call,
DW_AT_GNU_all_tail_call_sites, DW_AT_GNU_all_call_sites
and DW_AT_GNU_all_source_call_sites.
(mem_loc_descriptor): Handle ENTRY_VALUE.
(add_src_coords_attributes): Don't add enything if
DECL_SOURCE_LOCATION is UNKNOWN_LOCATION.
(dwarf2out_abstract_function): Save and clear call_arg_location,
call_site_count and tail_call_site_count around dwarf2out_decl call.
(gen_call_site_die): New function.
(gen_subprogram_die): Emit DW_TAG_GNU_call_site DIEs for call sites.
(gen_lexical_block_die, gen_inlined_subroutine_die): Update block_map.
(dwarf2out_function_decl): Clear call_arg_locations,
call_arg_loc_last, set call_site_count and tail_call_site_count
to -1 and free block_map.
(dwarf2out_var_location): Handle NOTE_INSN_CALL_ARG_LOCATION and
CALL_INSNs. Add NOTE_DURING_CALL_P var location notes even when not
followed by any real instructions.
(dwarf2out_begin_function): Set call_site_count and
tail_call_site_count to 0.
(resolve_addr): If DW_AT_abstract_origin of DW_TAG_GNU_call_site
is dw_val_class_addr, attempt to look it up again, for DECL_EXTERNAL
attempt to force a DIE for it and worst case remove the attribute.
(resolve_one_addr): For TREE_CONSTANT_POOL_ADDRESS_P SYMBOL_REFs
check TREE_ASM_WRITTEN of DECL_INITIAL of the decl instead of
the decl itself.
* var-tracking.c: Include tm_p.h.
(vt_stack_adjustments): For calls call note_register_arguments.
(argument_reg_set): New variable.
(add_stores): For MO_VAL_SET of non-tracked regs from argument_reg_set
ensure the VALUE is resolved.
(call_arguments): New variable.
(prepare_call_arguments): New function.
(add_with_sets): For MO_CALL set u.loc from call_arguments and clear it.
(struct expand_loc_callback_data): Add ignore_cur_loc field.
(vt_expand_loc_callback): If ignore_cur_loc, don't look at cur_loc and
always use the best expression.
(vt_expand_loc): Add ignore_cur_loc argument.
(vt_expand_loc_dummy): Clear ignore_cur_loc field.
(emit_note_insn_var_location): Adjust vt_expand_loc callers.
(emit_notes_in_bb) <case MO_CALL>: Add NOTE_INSN_CALL_ARG_LOCATION
note for all calls.
(vt_add_function_parameter): Use cselib_lookup_from_insn.
If dv is a VALUE, enter into hash table also ENTRY_VALUE for the
argument. Don't call cselib_preserve_only_values and
cselib_reset_table.
(note_register_arguments): New function.
(vt_initialize): Compute argument_reg_set. Call
vt_add_function_parameters before processing basic blocks instead of
afterwards. For calls call prepare_call_arguments before calling
cselib_process_insn.
* print-rtl.c (print_rtx): Handle NOTE_INSN_CALL_ARG_LOCATION.
* Makefile.in (dwarf2out.o): Depend on $(CFGLAYOUT_H).
(var-tracking.o): Depend on $(TM_P_H).
* cfglayout.h (insn_scope): New prototype.
* gengtype.c (adjust_field_rtx_def): Handle NOTE_INSN_CALL_ARG_LOCATION.
* cfglayout.c (insn_scope): No longer static.
* insn-notes.def (CALL_ARG_LOCATION): New.
* calls.c (expand_call, emit_library_call_value_1): Put USEs for
MEM arguments into CALL_INSN_FUNCTION_USAGE unconditionally.
* integrate.c (set_block_origin_self, set_block_abstract_flags): Do
nothing for DECL_EXTERNAL BLOCK_VARS.
cp/
* cp-objcp-common.c (cp_function_decl_explicit_p): Don't crash if
DECL_LANG_SPECIFIC is NULL.
include/
* dwarf2.h (DW_TAG_GNU_call_site, DW_TAG_GNU_call_site_parameter,
DW_AT_GNU_call_site_value, DW_AT_GNU_call_site_data_value,
DW_AT_GNU_call_site_target, DW_AT_GNU_call_site_target_clobbered,
DW_AT_GNU_tail_call, DW_AT_GNU_all_tail_call_sites,
DW_AT_GNU_all_call_sites,, DW_AT_GNU_all_source_call_sites,
DW_OP_GNU_entry_value): New.
From-SVN: r171033
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From-SVN: r170433
|
|
include:
* dwarf2.h: Update value for DW_AT_hi_user.
From-SVN: r168707
|
|
From-SVN: r166367
|
|
* rtl.def (DEBUG_IMPLICIT_PTR): New rtl code.
* rtl.h (DEBUG_IMPLICIT_PTR_DECL): Define.
* rtl.c (rtx_equal_p_cb, rtx_equal_p): Handle DEBUG_IMPLICIT_PTR.
* print-rtl.c (print_rtx): Likewise.
* cselib.c (rtx_equal_for_cselib_p, cselib_hash_rtx): Likewise.
* cfgexpand.c (expand_debug_expr): Generate DEBUG_IMPLICIT_PTR
for ADDR_EXPR with non-addressable object.
* dwarf2out.c (enum dw_val_class): Add dw_val_class_decl_ref.
(struct dw_val_struct): Add v.val_decl_ref.
(dwarf_stack_op_name, output_loc_operands, output_loc_operands_raw):
Handle DW_OP_GNU_implicit_pointer.
(size_of_loc_descr): Likewise. Fix up DW_OP_call_ref size.
(get_ref_die_offset_label): New function.
(implicit_ptr_descriptor): New function.
(mem_loc_descriptor): Handle DEBUG_IMPLICIT_PTR.
(loc_descriptor): Likewise.
(gen_variable_die): Put even definitions into decl_die_table.
(resolve_addr_in_expr): Resolve still unresolved
DW_OP_GNU_implicit_pointer operands, if it can't be resolved
return false.
(dwarf2out_finish): Call output_location_lists after outputting
.debug_info and .debug_abbrev instead of before.
* dwarf2.h (DW_OP_GNU_implicit_pointer): New.
2010-09-09 Roland McGrath <roland@redhat.com>
* dwarf2out.c (DWARF_REF_SIZE): Define.
(size_of_loc_descr): Use it for DW_OP_call_ref.
From-SVN: r164050
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|
* dwarf2.h (enum dwarf_type): Add DW_ATE_UTF.
* dwarf2out.c (base_type_die): Use DW_ATE_UTF for
C++ char16_t and char32_t.
From-SVN: r161095
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|
DW_TAG_HP_Bliss_field_set.
2010-06-08 Tristan Gingold <gingold@adacore.com>
* dwarf2.h (enum dwarf_tag): Add DW_TAG_HP_Bliss_field and
DW_TAG_HP_Bliss_field_set.
(enum dwarf_attribute): Add DW_AT_HP_prologue, DW_AT_HP_epilogue,
DW_AT_HP_unit_name, DW_AT_HP_unit_size, DW_AT_HP_widened_byte_size,
DW_AT_HP_definition_points, DW_AT_HP_default_location and
DW_AT_HP_is_result_param.
(enum dwarf_type): Add DW_ATE_HP_VAX_float, DW_ATE_HP_VAX_float_d,
DW_ATE_HP_packed_decimal, DW_ATE_HP_zoned_decimal, DW_ATE_HP_edited,
DW_ATE_HP_signed_fixed, DW_ATE_HP_unsigned_fixed,
DW_ATE_HP_VAX_complex_float and DW_ATE_HP_VAX_complex_float_d.
(enum dwarf_line_number_x_ops): Add
DW_LNE_HP_source_file_correlation.
(enum dwarf_source_language): Add DW_LANG_HP_Bliss,
DW_LANG_HP_Basic91, DW_LANG_HP_Pascal91, DW_LANG_HP_IMacro,
DW_LANG_HP_Assembler.
From-SVN: r160430
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|
* dwarf2.h (DWARF2_Internal_LineInfo): Add li_max_ops_per_insn
field.
From-SVN: r157983
|
|
* dwarf2.h (dwarf_attribute): Add DW_AT_use_GNAT_descriptive_type.
From-SVN: r155855
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|
From-SVN: r155501
|
|
Add DWARF attribute value for the "Borland fastcall" calling
convention.
* elf/dwarf2.h: Add DW_CC_GNU_borland_fastcall_i386 constant.
From-SVN: r153970
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|
DW_TAG_template_alias.
* dwarf2out.c (dwarf_tag_name): Handle DW_TAG_rvalue_reference_type
and DW_TAG_template_alias.
(dwarf_attr_name): Handle DW_AT_main_subprogram,
DW_AT_data_bit_offset, DW_AT_const_expr, DW_AT_enum_class,
DW_AT_linkage_name, DW_AT_GNU_guarded_by, DW_AT_GNU_pt_guarded_by,
DW_AT_GNU_guarded, DW_AT_GNU_pt_guarded, DW_AT_GNU_locks_excluded,
DW_AT_GNU_exclusive_locks_required, DW_AT_GNU_shared_locks_required
and DW_AT_GNU_odr_signature.
(dwarf_form_name): Handle DW_FORM_sec_offset, DW_FORM_exprloc,
DW_FORM_flag_present and DW_FORM_ref_sig8.
(output_signature): Only print name on the first byte.
(output_die): Likewise for dw_val_class_data8.
* include/dwarf2.h (DW_LANG_Python): Add comment that it is
a DWARF 4 addition.
From-SVN: r152853
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include/ChangeLog:
* dwarf2.h (enum dwarf_tag): Rename DW_TAG_template_parameter_pack and
DW_TAG_formal_parameter_pack into DW_TAG_GNU_template_parameter_pack
and DW_TAG_formal_parameter_pack until DWARF 5 is out.
gcc/ChangeLog:
* dwarf2out.c (dwarf_tag_name, gen_generic_params_dies,
generic_parameter_die, template_parameter_pack_die,
gen_formal_parameter_die, gen_subprogram_die): Adjust after renaming
DW_TAG_formal_parameter_pack and DW_TAG_template_parameter_pack into
DW_TAG_GNU_formal_parameter_pack and DW_TAG_GNU_template_parameter_pack.
gcc/testsuite/ChangeLog:
* g++.dg/debug/dwarf2/template-func-params-4.C: Adjust after renaming
DW_TAG_template_parameter_pack and DW_TAG_formal_parameter_pack
into DW_TAG_GNU_template_parameter_pack and
DW_TAG_GNU_formal_parameter_pack.
* g++.dg/debug/dwarf2/template-params-4.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-7.C: Likewise.
From-SVN: r152188
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