diff options
Diffstat (limited to 'gdb/dwarf2')
| -rw-r--r-- | gdb/dwarf2/macro.c | 71 | ||||
| -rw-r--r-- | gdb/dwarf2/macro.h | 3 | ||||
| -rw-r--r-- | gdb/dwarf2/read.c | 21 |
3 files changed, 91 insertions, 4 deletions
diff --git a/gdb/dwarf2/macro.c b/gdb/dwarf2/macro.c index d047d80..9208614 100644 --- a/gdb/dwarf2/macro.c +++ b/gdb/dwarf2/macro.c @@ -427,6 +427,9 @@ dwarf_decode_macro_bytes (dwarf2_per_objfile *per_objfile, const struct dwarf2_section_info *section, int section_is_gnu, int section_is_dwz, unsigned int offset_size, + struct dwarf2_section_info *str_section, + struct dwarf2_section_info *str_offsets_section, + ULONGEST str_offsets_base, htab_t include_hash) { struct objfile *objfile = per_objfile->objfile; @@ -561,6 +564,53 @@ dwarf_decode_macro_bytes (dwarf2_per_objfile *per_objfile, } break; + case DW_MACRO_define_strx: + case DW_MACRO_undef_strx: + { + unsigned int bytes_read; + + int line = read_unsigned_leb128 (abfd, mac_ptr, &bytes_read); + mac_ptr += bytes_read; + int offset_index = read_unsigned_leb128 (abfd, mac_ptr, &bytes_read); + mac_ptr += bytes_read; + + str_offsets_section->read (objfile); + const gdb_byte *info_ptr = (str_offsets_section->buffer + + str_offsets_base + + offset_index * offset_size); + + const char *macinfo_str = (macinfo_type == DW_MACRO_define_strx ? + "DW_MACRO_define_strx" : "DW_MACRO_undef_strx"); + + if (str_offsets_base + offset_index * offset_size + >= str_offsets_section->size) + { + complaint (_("%s pointing outside of .debug_str_offsets section " + "[in module %s]"), macinfo_str, objfile_name (objfile)); + break; + } + + ULONGEST str_offset = read_offset (abfd, info_ptr, offset_size); + + const char *body = str_section->read_string (objfile, str_offset, + macinfo_str); + if (current_file == nullptr) + { + /* DWARF violation as no main source is present. */ + complaint (_("debug info with no main source gives macro %s " + "on line %d: %s"), + macinfo_type == DW_MACRO_define_strx ? _("definition") + : _("undefinition"), line, body); + break; + } + + if (macinfo_type == DW_MACRO_define_strx) + parse_macro_definition (current_file, line, body); + else + macro_undef (current_file, line, body); + } + break; + case DW_MACRO_start_file: { unsigned int bytes_read; @@ -671,7 +721,8 @@ dwarf_decode_macro_bytes (dwarf2_per_objfile *per_objfile, new_mac_ptr, include_mac_end, current_file, lh, section, section_is_gnu, is_dwz, offset_size, - include_hash); + str_section, str_offsets_section, + str_offsets_base, include_hash); htab_remove_elt (include_hash, (void *) new_mac_ptr); } @@ -712,7 +763,9 @@ dwarf_decode_macros (dwarf2_per_objfile *per_objfile, buildsym_compunit *builder, const dwarf2_section_info *section, const struct line_header *lh, unsigned int offset_size, - unsigned int offset, int section_is_gnu) + unsigned int offset, struct dwarf2_section_info *str_section, + struct dwarf2_section_info *str_offsets_section, + ULONGEST str_offsets_base, int section_is_gnu) { bfd *abfd; const gdb_byte *mac_ptr, *mac_end; @@ -814,6 +867,17 @@ dwarf_decode_macros (dwarf2_per_objfile *per_objfile, mac_ptr += offset_size; } break; + case DW_MACRO_define_strx: + case DW_MACRO_undef_strx: + { + unsigned int bytes_read; + + read_unsigned_leb128 (abfd, mac_ptr, &bytes_read); + mac_ptr += bytes_read; + read_unsigned_leb128 (abfd, mac_ptr, &bytes_read); + mac_ptr += bytes_read; + } + break; case DW_MACRO_import: case DW_MACRO_import_sup: @@ -861,5 +925,6 @@ dwarf_decode_macros (dwarf2_per_objfile *per_objfile, *slot = (void *) mac_ptr; dwarf_decode_macro_bytes (per_objfile, builder, abfd, mac_ptr, mac_end, current_file, lh, section, section_is_gnu, 0, - offset_size, include_hash.get ()); + offset_size, str_section, str_offsets_section, + str_offsets_base, include_hash.get ()); } diff --git a/gdb/dwarf2/macro.h b/gdb/dwarf2/macro.h index d874068..0a7ac55 100644 --- a/gdb/dwarf2/macro.h +++ b/gdb/dwarf2/macro.h @@ -28,6 +28,9 @@ extern void dwarf_decode_macros (dwarf2_per_objfile *per_objfile, const struct line_header *lh, unsigned int offset_size, unsigned int offset, + dwarf2_section_info *str_section, + dwarf2_section_info *str_offsets_section, + ULONGEST str_offsets_base, int section_is_gnu); #endif /* GDB_DWARF2_MACRO_H */ diff --git a/gdb/dwarf2/read.c b/gdb/dwarf2/read.c index 973a375..eedfea1 100644 --- a/gdb/dwarf2/read.c +++ b/gdb/dwarf2/read.c @@ -23900,8 +23900,27 @@ dwarf_decode_macros (struct dwarf2_cu *cu, unsigned int offset, buildsym_compunit *builder = cu->get_builder (); + struct dwarf2_section_info *str_offsets_section; + struct dwarf2_section_info *str_section; + ULONGEST str_offsets_base; + + if (cu->dwo_unit != nullptr) + { + str_offsets_section = &cu->dwo_unit->dwo_file + ->sections.str_offsets; + str_section = &cu->dwo_unit->dwo_file->sections.str; + str_offsets_base = cu->header.addr_size; + } + else + { + str_offsets_section = &per_objfile->per_bfd->str_offsets; + str_section = &per_objfile->per_bfd->str; + str_offsets_base = *cu->str_offsets_base; + } + dwarf_decode_macros (per_objfile, builder, section, lh, - offset_size, offset, section_is_gnu); + offset_size, offset, str_section, str_offsets_section, + str_offsets_base, section_is_gnu); } /* Return the .debug_loc section to use for CU. |