(read_common_block): Handle child DIEs with
DW_AT_data_member_location.
(new_symbol_full): Add special case for common blocks.
gdb/testsuite
* gdb.dwarf2/dw2-common-block.S: New file.
* gdb.dwarf2/dw2-common-block.exp: New file.
* dwarf2read.c (dwarf2_locate_sections): Move variable aflag here.
Move the SEC_HAS_CONTENTS check here - for any NAMES use.
(dwarf2_locate_sections) <eh_frame>: Move the variable and check from
here.
SIZE to size_t.
(dwarf2_evaluate_loc_desc): Likewise.
(dwarf2_loc_desc_needs_frame): Likewise.
(locexpr_describe_location_1): Likewise.
* dwarf2loc.h (struct dwarf2_locexpr_baton): Make SIZE as
size_t.
(struct dwarf2_loclist_baton): Likewise.
* dwarf2read.c (struct dwarf_block): Likewise.
(dump_die_shallow): Use pulongest to print dwarf_block.size.
(decode_locdesc): Expand SIZE and I to size_t.
and delete reference to --use-deprecated-index-sections.
* symfile.h (use_deprecated_index_sections): Delete.
* dwarf2read.c (use_deprecated_index_sections): Make static.
(read_index_from_section): Update wording of how to load
deprecated index sections.
(_initialize_dwarf2_read): New options
"set/show use-deprecated-index-sections".
* main.c (captured_main): Delete --use-deprecated-index-sections.
doc/
* gdb.texinfo (Mode Options): Delete --use-deprecated-index-sections.
(Index Files): Document how to control the use of deprecated index
sections.
(Index Section Format): Replace --use-deprecated-index-sections with
"set use-deprecated-index-sections on".
(locate_dwz_sections): Recognize .gdb_index.
(create_cus_from_index_list): New function.
(create_cus_from_index): Use it. Handle .dwz data.
(read_index_from_section): New function, extracted from
dwarf2_read_index.
(dwarf2_read_index): Use it. Read .gdb_index from dwz file,
if needed.
gdb_bfd_unref.
(free_dwo_file): Use gdb_bfd_unref.
* cli/cli-dump.c: Include gdb_bfd.h.
(bfd_openw_with_cleanup): Use gdb_bfd_ref.
(bfd_openr_with_cleanup): Likewise.
* windows-nat.c (windows_make_so): Use gdb_bfd_ref,
gdb_bfd_unref.
* utils.c: Include gdb_bfd.h.
(do_bfd_close_cleanup): Use gdb_bfd_unref.
* symfile.c: Include gdb_bfd.h.
(separate_debug_file_exists): Use gdb_bfd_unref.
(bfd_open_maybe_remote): Use gdb_bfd_ref.
(symfile_bfd_open): Use gdb_bfd_ref, gdb_bfd_unref.
(generic_load): Use gdb_bfd_ref.
(reread_symbols): Use gdb_bfd_unref.
* symfile-mem.c: Include gdb_bfd.h.
(symbol_file_add_from_memory): Use make_cleanup_bfd_close.
* spu-linux-nat.c (spu_bfd_open): Use gdb_bfd_ref, gdb_bfd_unref.
* solib.c: Include gdb_bfd.h.
(solib_bfd_fopen): Use gdb_bfd_ref.
(solib_bfd_open): Use gdb_bfd_unref.
(free_so_symbols): Use gdb_bfd_unref.
(reload_shared_libraries_1): Use gdb_bfd_unref.
* solib-spu.c: Include gdb_bfd.h.
(spu_bfd_fopen): Use gdb_bfd_ref, gdb_bfd_unref.
* solib-pa64.c (pa64_solib_create_inferior_hook): Use gdb_bfd_ref,
gdb_bfd_unref.
* solib-frv.c: Include gdb_bfd.h.
(enable_break2): Use gdb_bfd_unref.
* solib-dsbt.c: Include gdb_bfd.h.
(enable_break2): Use gdb_bfd_unref.
* solib-darwin.c: Include gdb_bfd.h.
(darwin_solib_get_all_image_info_addr_at_init): Use gdb_bfd_ref,
gdb_bfd_unref.
(darwin_bfd_open): Use gdb_bfd_unref.
* rs6000-nat.c (add_vmap): Use gdb_bfd_ref, gdb_bfd_unref.
* remote-mips.c: Include gdb_bfd.h.
(mips_load_srec): Use gdb_bfd_ref.
(pmon_load_fast): Use gdb_bfd_ref.
* remote-m32r-sdi.c: Include gdb_bfd.h.
(m32r_load): Use gdb_bfd_ref.
* record.c: Include gdb_bfd.h.
(record_save_cleanups): Use gdb_bfd_unref.
(cmd_record_save): Use gdb_bfd_unref.
* procfs.c (insert_dbx_link_bpt_in_file): Use gdb_bfd_ref,
gdb_bfd_unref.
* objfiles.h (gdb_bfd_close_or_warn): Remove.
(gdb_bfd_ref, gdb_bfd_unref): Move to gdb_bfd.h.
* objfiles.c: Include gdb_bfd.h.
(free_objfile): Use gdb_bfd_unref.
(gdb_bfd_close_or_warn, gdb_bfd_ref, gdb_bfd_unref): Move to
gdb_bfd.c.
* machoread.c (macho_add_oso_symfile): Use gdb_bfd_unref.
(macho_symfile_read_all_oso): Use gdb_bfd_ref, gdb_bfd_unref.
(macho_check_dsym): Likewise.
* m32r-rom.c: Include gdb_bfd.h.
(m32r_load): Use gdb_bfd_ref.
(m32r_upload_command): Use gdb_bfd_ref.
* jit.c: Include gdb_bfd.h.
(jit_bfd_try_read_symtab): Use gdb_bfd_ref, gdb_bfd_unref.
* gdb_bfd.h: New file.
* gdb_bfd.c: New file.
* gcore.c: Include gdb_bfd.h.
(create_gcore_bfd): Use gdb_bfd_ref.
(do_bfd_delete_cleanup): Use gdb_bfd_unref.
(gcore_command): Use gdb_bfd_unref.
* exec.c: Include gdb_bfd.h.
(exec_close): Use gdb_bfd_unref.
(exec_close_1): Use gdb_bfd_unref.
(exec_file_attach): Use gdb_bfd_ref.
* elfread.c: Include gdb_bfd.h.
(build_id_verify): Use gdb_bfd_unref.
* dsrec.c: Include gdb_bfd.h.
(load_srec): Use gdb_bfd_ref.
* corelow.c: Include gdb_bfd.h.
(core_close): Use gdb_bfd_unref.
(core_open): Use gdb_bfd_ref.
* bfd-target.c: Include gdb_bfd.h.
(target_bfd_xclose): Use gdb_bfd_unref.
(target_bfd_reopen): Use gdb_bfd_ref.
* Makefile.in (SFILES): Add gdb_bfd.c.
(HFILES_NO_SRCDIR): Add gdb_bfd.h.
(COMMON_OBS): Add gdb_bfd.o.
(type_unit_group): Embed "per_cu" member, remove pointer.
New union member "t", move member "tus" into it, all uses updated.
New member "hash", replaces member "line_offset, all uses updated.
(quick_file_names): Replace member "offset" with "hash", all uses
updated.
(hash_stmt_list_entry, eq_stmt_list_entry): New functions.
(hash_file_name_entry, eq_file_name_entry): Call them.
(hash_type_unit_group, eq_type_unit_group): Ditto.
(dw2_get_cu, dw2_get_primary_cu): Replace assert with a better one.
(dw2_get_file_names_reader): Fix file name table calculation for TUs.
(dw2_get_file_names): Update.
(create_type_unit_group): Replace "per_cu" arg with "cu".
All callers updated. Fix "quick" (.gdb_index) handling.
(get_type_unit_group): Replace "per_cu" arg with "cu".
All callers updated.
(build_type_unit_groups): Don't reset tu_stats.
* buildsym.c (end_symtab_1): Split it to ...
(end_symtab_get_static_block): ... this ...
(end_symtab_from_static_block): ... and this function.
(end_symtab, end_expandable_symtab): Call them.
* buildsym.h (end_symtab_get_static_block)
(end_symtab_from_static_block): New declarations.
* dwarf2read.c (process_full_comp_unit): New variable static_block.
Set its valid CU ranges.
gdb/testsuite/
* gdb.dwarf2/dw2-minsym-in-cu.S: New file.
* gdb.dwarf2/dw2-minsym-in-cu.exp: New file.
* dwarf2read.c (dwarf2_per_objfile): New members n_type_unit_groups,
all_type_unit_groups, type_unit_groups, tu_stats.
(dwarf2_per_cu_data): Move "imported_symtabs" into new union "s".
All uses updated. Add type_unit_group to union "s".
(type_unit_group): New struct.
(IS_TYPE_UNIT_GROUP): New macro.
(abbrev_table): Delete unused member "section".
(dw2_do_instantiate_symtab): Early exit if type_unit_group.
(dw2_get_cu): Assert not used with type_unit_group.
(dw2_get_primary_cu): New function.
(dw2_build_type_unit_groups_reader): New function.
(dw2_build_type_unit_groups): New function.
(dw2_get_file_names): Assert not called on type units.
(dw2_map_symtabs_matching_filename): Call dw2_build_type_unit_groups.
Redo loop to iterate over type unit groups instead of type units.
(dw2_expand_symtabs_matching, dw2_map_symbol_filenames): Ditto.
(read_abbrev_offset): New function.
(init_cutu_and_read_dies): New arg "abbrev_table". All callers
updated.
(create_partial_symtab): New function.
(process_psymtab_comp_unit_reader): Assert not used with type units.
Call create_partial_symtab.
(process_psymtab_type_unit): Delete.
(hash_type_unit_group, eq_type_unit_group): New functions.
(allocate_type_unit_groups_table): New function.
(NO_STMT_LIST_TYPE_UNIT_PSYMTAB): New macro.
(NO_STMT_LIST_TYPE_UNIT_PSYMTAB_SIZE): New macro.
(create_type_unit_group, get_type_unit_group): New functions.
(tu_abbrev_offset): New struct.
(sort_tu_by_abbrev_offset): New function.
(add_type_unit_group_to_table): New function.
(build_type_unit_groups): New function.
(build_type_psymtabs_reader): New function.
(build_type_psymtab_dependencies): New function.
(build_type_psymtabs): Rewrite.
(scan_partial_symbols): Flag an error if a DW_TAG_imported_unit
is seen in a type unit.
(process_queue): Move symtab expansion debugging printfs here.
Call process_full_type_unit for type units.
(compute_symtab_includes): Assert not called for type units.
(process_cu_includes): Don't call compute_symtab_includes for
type units.
(process_full_type_unit): New function.
(process_imported_unit_die): Flag an error if called for type units.
(handle_DW_AT_stmt_list): Delete arg "want_line_info". All callers
updated. Assert not called for type units.
(read_file_scope): Call dwarf2_start_symtab.
(setup_type_unit_groups): New function.
(read_type_unit_scope): Rewrite.
(abbrev_table_read_table): Initialize abbrev_table->offset.
(abbrev_table_free_cleanup): New function.
(dwarf2_start_symtab): New function.
(load_full_type_unit): Assert not called for type unit groups.
(init_cutu_and_read_dies): Handle rereading a DWO CU while it's
currently being read. Propagate DW_AT_comp_dir to DWO DIE.
testsuite/
* gdb.dwarf2/fission-reread.S: New file.
* gdb.dwarf2/fission-reread.exp: New file.
(struct abbrev_table): Define.
(dwarf2_cu): Replace members dwarf2_abbrevs, abbrev_obstack with
abbrev_table.
(init_cutu_and_read_dies): Update.
(abbrev_table_alloc_abbrev): New function. Replaces
dwarf_alloc_abbrev. All callers updated.
(abbrev_table_add_abbrev): New function.
(abbrev_table_lookup_abbrev): New function. Replaces
dwarf2_lookup_abbrev. All callers updated.
(abbrev_table_read_table): New function. Contents moved here from
dwarf2_read_abbrevs.
(dwarf2_read_abbrevs): Call it.
(abbrev_table_free): New function.
(dwarf2_free_abbrev_table): Call it.
* NEWS: Document additions to .gdb_index.
* dwarf2read.c: #include "gdb/gdb-index.h".
(DW2_GDB_INDEX_SYMBOL_STATIC_SET_VALUE): New macro.
(DW2_GDB_INDEX_SYMBOL_KIND_SET_VALUE): New macro.
(DW2_GDB_INDEX_CU_SET_VALUE): New macro.
(dwarf2_read_index): Recognize version 7.
(dw2_do_expand_symtabs_matching): New args want_specific_block,
block_kind, domain): All callers updated.
(dw2_find_symbol_file): Handle new index CU values.
(dw2_expand_symtabs_matching): Match symbol kind if requested.
(add_index_entry): New args is_static, kind. All callers updated.
(offset_type_compare, uniquify_cu_indices): New functions
(symbol_kind): New function.
(write_psymtabs_to_index): Remove duplicate CU values.
(write_psymtabs_to_index): Write .gdb_index version 7.
doc/
* gdb.texinfo (Index Section Format): Document version 7 format.
include/gdb/
* gdb-index.h: New file.
Adjust address for DW_OP_GNU_addr_index.
* dwarf2expr.h (dwarf_expr_context): Update comment.
* dwarf2loc.c (locexpr_describe_location_piece): New arg per_cu,
all callers updated. Handle TLS vars described with
DW_OP_GNU_const_index.
(disassemble_dwarf_expression): Handle DW_OP_GNU_addr_index
and DW_OP_GNU_const_index.
* dwarf2read.c (decode_locdesc): Handle DW_OP_GNU_addr_index.
* dwarf2expr.c (execute_stack_op): Support DW_OP_GNU_parameter_ref.
* dwarf2loc.c (call_site_parameter_matches): Support
CALL_SITE_PARAMETER_PARAM_OFFSET.
(needs_dwarf_reg_entry_value): Push stub value.
* dwarf2read.c (read_call_site_scope): New variable origin. Support
CALL_SITE_PARAMETER_PARAM_OFFSET and its DW_AT_abstract_origin.
* gdbtypes.h (enum call_site_parameter_kind): New item
CALL_SITE_PARAMETER_PARAM_OFFSET.
(struct call_site.parameter.u): New field param_offset.
gdb/testsuite/
* gdb.arch/amd64-entry-value-param.S: New file.
* gdb.arch/amd64-entry-value-param.c: New file.
* gdb.arch/amd64-entry-value-param.exp: New file.
Code cleanup: Generalize call_site.parameter key.
* dwarf2expr.c (execute_stack_op) <DW_OP_GNU_entry_value>: Remove
variable dwarf_reg. New variable kind_u. Update parameters to
push_dwarf_reg_entry_value.
(ctx_no_push_dwarf_reg_entry_value): Update parameters.
* dwarf2expr.h (enum call_site_parameter_kind)
(union call_site_parameter_u): Forward declarations.
(struct dwarf_expr_context_funcs): Update parameters and their
description for push_dwarf_reg_entry_value.
(ctx_no_push_dwarf_reg_entry_value): Update parameters.
* dwarf2loc.c (call_site_parameter_matches): New function.
(dwarf_expr_reg_to_entry_parameter): Update parameters and their
description. Use call_site_parameter_matches.
(dwarf_expr_push_dwarf_reg_entry_value, value_of_dwarf_reg_entry):
Update parameters and their description.
(value_of_dwarf_block_entry): Remove variables dwarf_reg and fb_offset.
New variable kind_u. Adjust the caller for updated parameters.
(needs_dwarf_reg_entry_value): Update parameters.
* dwarf2read.c (read_call_site_scope): New variable loc. Use it
instead of attr. Update for the changed fields of struct
call_site_parameter.
* gdbtypes.h: Include dwarf2expr.h.
(enum call_site_parameter_kind): New.
(struct call_site.parameter): New field kind. Wrap dwarf_reg and
fb_offset into new union u.
Doug Evans
Tom Tromey
Jan Kratochvil
Yao Qi
Siddhesh Poyarekar