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-rw-r--r--binutils/readelf.c2565
1 files changed, 1378 insertions, 1187 deletions
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 6cecdc3..d81907c 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -1,5 +1,5 @@
/* readelf.c -- display contents of an ELF format file
- Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004
+ Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
Free Software Foundation, Inc.
Originally developed by Eric Youngdale <eric@andante.jic.com>
@@ -7068,758 +7068,209 @@ find_section (const char * name)
return NULL;
}
-/* This could just be an array of unsigned integers, but I expect
- that we will want to extend the structure to contain other
- information. */
-typedef struct
-{
- unsigned int pointer_size;
-}
-debug_info;
-
-static debug_info * debug_information = NULL;
-static unsigned int num_debug_info_entries = 0;
-static unsigned int last_pointer_size = 0;
-static int warned_about_missing_comp_units = FALSE;
+static const char *debug_str_contents;
+static bfd_vma debug_str_size;
-static unsigned int
-get_pointer_size_of_comp_unit (unsigned int comp_unit,
- const char * section_name)
+static void
+load_debug_str (FILE *file)
{
- if (num_debug_info_entries == 0)
- {
- error (_("%s section needs a populated .debug_info section\n"),
- section_name);
- return 0;
- }
+ Elf_Internal_Shdr *sec;
- if (comp_unit >= num_debug_info_entries)
- {
- if (!warned_about_missing_comp_units)
- {
- warn (_("%s section has more comp units than .debug_info section\n"),
- section_name);
- warn (_("assuming that the pointer size is %d, from the last comp unit in .debug_info\n\n"),
- last_pointer_size);
- warned_about_missing_comp_units = TRUE;
- }
- }
- else
- last_pointer_size = debug_information [comp_unit].pointer_size;
+ /* If it is already loaded, do nothing. */
+ if (debug_str_contents != NULL)
+ return;
- return last_pointer_size;
+ /* Locate the .debug_str section. */
+ sec = find_section (".debug_str");
+ if (sec == NULL)
+ return;
-}
+ debug_str_size = sec->sh_size;
-/* Locate and scan the .debug_info section in the file and record the pointer
- sizes for the compilation units in it. Usually an executable will have
- just one pointer size, but this is not guaranteed, and so we try not to
- make any assumptions. Returns zero upon failure, or the number of
- compilation units upon success. */
+ debug_str_contents = get_data (NULL, file, sec->sh_offset, sec->sh_size,
+ _("debug_str section data"));
+}
-static unsigned int
-get_debug_info (FILE * file)
+static void
+free_debug_str (void)
{
- Elf_Internal_Shdr * section;
- unsigned char * start;
- unsigned char * end;
- unsigned char * begin;
- unsigned long length;
- unsigned int num_units;
- unsigned int unit;
-
- /* Reset the last pointer size so that we can issue correct
- error messages if we are displaying the contents of more
- than one file. */
- last_pointer_size = 0;
- warned_about_missing_comp_units = FALSE;
-
- /* If we already have the information there is nothing else to do. */
- if (num_debug_info_entries > 0)
- return num_debug_info_entries;
-
- section = find_section (".debug_info");
- if (section == NULL)
- return 0;
-
- length = section->sh_size;
- start = get_data (NULL, file, section->sh_offset, section->sh_size,
- _("extracting information from .debug_info section"));
- if (start == NULL)
- return 0;
-
- end = start + section->sh_size;
- /* First scan the section to get the number of comp units. */
- for (begin = start, num_units = 0; begin < end; num_units++)
- {
- /* Read the first 4 bytes. For a 32-bit DWARF section, this will
- be the length. For a 64-bit DWARF section, it'll be the escape
- code 0xffffffff followed by an 8 byte length. */
- length = byte_get (begin, 4);
+ if (debug_str_contents == NULL)
+ return;
- if (length == 0xffffffff)
- {
- length = byte_get (begin + 4, 8);
- begin += length + 12;
- }
- else
- begin += length + 4;
- }
+ free ((char *) debug_str_contents);
+ debug_str_contents = NULL;
+ debug_str_size = 0;
+}
- if (num_units == 0)
- {
- error (_("No comp units in .debug_info section ?"));
- free (start);
- return 0;
- }
+static const char *
+fetch_indirect_string (unsigned long offset)
+{
+ if (debug_str_contents == NULL)
+ return _("<no .debug_str section>");
- /* Then allocate an array to hold the information. */
- debug_information = malloc (num_units * sizeof * debug_information);
- if (debug_information == NULL)
- {
- error (_("Not enough memory for a debug info array of %u entries"),
- num_units);
- free (start);
- return 0;
- }
+ if (offset > debug_str_size)
+ return _("<offset is too big>");
- /* Populate the array. */
- for (begin = start, unit = 0; begin < end; unit++)
- {
- length = byte_get (begin, 4);
- if (length == 0xffffffff)
- {
- /* For 64-bit DWARF, the 1-byte address_size field is 22 bytes
- from the start of the section. This is computed as follows:
+ return debug_str_contents + offset;
+}
- unit_length: 12 bytes
- version: 2 bytes
- debug_abbrev_offset: 8 bytes
- -----------------------------
- Total: 22 bytes */
+static const char *debug_loc_contents;
+static bfd_vma debug_loc_size;
- debug_information [unit].pointer_size = byte_get (begin + 22, 1);
- length = byte_get (begin + 4, 8);
- begin += length + 12;
- }
- else
- {
- /* For 32-bit DWARF, the 1-byte address_size field is 10 bytes from
- the start of the section:
+static void
+load_debug_loc (FILE *file)
+{
+ Elf_Internal_Shdr *sec;
- unit_length: 4 bytes
- version: 2 bytes
- debug_abbrev_offset: 4 bytes
- -----------------------------
- Total: 10 bytes */
+ /* If it is already loaded, do nothing. */
+ if (debug_loc_contents != NULL)
+ return;
- debug_information [unit].pointer_size = byte_get (begin + 10, 1);
- begin += length + 4;
- }
- }
+ /* Locate the .debug_loc section. */
+ sec = find_section (".debug_loc");
+ if (sec == NULL)
+ return;
- free (start);
+ debug_loc_size = sec->sh_size;
- return num_debug_info_entries = num_units;
+ debug_loc_contents = get_data (NULL, file, sec->sh_offset, sec->sh_size,
+ _("debug_loc section data"));
}
-static int
-display_debug_lines (Elf_Internal_Shdr *section,
- unsigned char *start, FILE *file)
+static void
+free_debug_loc (void)
{
- unsigned char *data = start;
- unsigned char *end = start + section->sh_size;
- unsigned int comp_unit = 0;
-
- printf (_("\nDump of debug contents of section %s:\n\n"),
- SECTION_NAME (section));
-
- get_debug_info (file);
+ if (debug_loc_contents == NULL)
+ return;
- while (data < end)
- {
- DWARF2_Internal_LineInfo info;
- unsigned char *standard_opcodes;
- unsigned char *end_of_sequence;
- unsigned char *hdrptr;
- unsigned int pointer_size;
- int initial_length_size;
- int offset_size;
- int i;
+ free ((char *) debug_loc_contents);
+ debug_loc_contents = NULL;
+ debug_loc_size = 0;
+}
- hdrptr = data;
+static const char * debug_range_contents;
+static unsigned long debug_range_size;
- /* Check the length of the block. */
- info.li_length = byte_get (hdrptr, 4);
- hdrptr += 4;
+static void
+load_debug_range (FILE *file)
+{
+ Elf_Internal_Shdr *sec;
- if (info.li_length == 0xffffffff)
- {
- /* This section is 64-bit DWARF 3. */
- info.li_length = byte_get (hdrptr, 8);
- hdrptr += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
+ /* If it is already loaded, do nothing. */
+ if (debug_range_contents != NULL)
+ return;
- if (info.li_length + initial_length_size > section->sh_size)
- {
- warn
- (_("The line info appears to be corrupt - the section is too small\n"));
- return 0;
- }
+ /* Locate the .debug_str section. */
+ sec = find_section (".debug_ranges");
+ if (sec == NULL)
+ return;
- /* Check its version number. */
- info.li_version = byte_get (hdrptr, 2);
- hdrptr += 2;
- if (info.li_version != 2 && info.li_version != 3)
- {
- warn (_("Only DWARF version 2 and 3 line info is currently supported.\n"));
- return 0;
- }
+ debug_range_size = sec->sh_size;
- info.li_prologue_length = byte_get (hdrptr, offset_size);
- hdrptr += offset_size;
- info.li_min_insn_length = byte_get (hdrptr, 1);
- hdrptr++;
- info.li_default_is_stmt = byte_get (hdrptr, 1);
- hdrptr++;
- info.li_line_base = byte_get (hdrptr, 1);
- hdrptr++;
- info.li_line_range = byte_get (hdrptr, 1);
- hdrptr++;
- info.li_opcode_base = byte_get (hdrptr, 1);
- hdrptr++;
+ debug_range_contents = get_data (NULL, file, sec->sh_offset, sec->sh_size,
+ _("debug_range section data"));
+}
- /* Sign extend the line base field. */
- info.li_line_base <<= 24;
- info.li_line_base >>= 24;
+static void
+free_debug_range (void)
+{
+ if (debug_range_contents == NULL)
+ return;
- /* Get the pointer size from the comp unit associated
- with this block of line number information. */
- pointer_size = get_pointer_size_of_comp_unit (comp_unit,
- ".debug_lines");
- comp_unit ++;
+ free ((char *) debug_range_contents);
+ debug_range_contents = NULL;
+ debug_range_size = 0;
+}
- printf (_(" Length: %ld\n"), info.li_length);
- printf (_(" DWARF Version: %d\n"), info.li_version);
- printf (_(" Prologue Length: %d\n"), info.li_prologue_length);
- printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length);
- printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt);
- printf (_(" Line Base: %d\n"), info.li_line_base);
- printf (_(" Line Range: %d\n"), info.li_line_range);
- printf (_(" Opcode Base: %d\n"), info.li_opcode_base);
- printf (_(" (Pointer size: %u)\n"), pointer_size);
+/* Apply addends of RELA relocations. */
- end_of_sequence = data + info.li_length + initial_length_size;
+static int
+debug_apply_rela_addends (FILE *file,
+ Elf_Internal_Shdr *section,
+ int reloc_size,
+ unsigned char *sec_data,
+ unsigned char *start,
+ unsigned char *end)
+{
+ Elf_Internal_Shdr *relsec;
- reset_state_machine (info.li_default_is_stmt);
+ if (end - start < reloc_size)
+ return 1;
- /* Display the contents of the Opcodes table. */
- standard_opcodes = hdrptr;
+ for (relsec = section_headers;
+ relsec < section_headers + elf_header.e_shnum;
+ ++relsec)
+ {
+ unsigned long nrelas;
+ Elf_Internal_Rela *rela, *rp;
+ Elf_Internal_Shdr *symsec;
+ Elf_Internal_Sym *symtab;
+ Elf_Internal_Sym *sym;
- printf (_("\n Opcodes:\n"));
+ if (relsec->sh_type != SHT_RELA
+ || SECTION_HEADER (relsec->sh_info) != section
+ || relsec->sh_size == 0)
+ continue;
- for (i = 1; i < info.li_opcode_base; i++)
- printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
+ if (!slurp_rela_relocs (file, relsec->sh_offset, relsec->sh_size,
+ &rela, &nrelas))
+ return 0;
- /* Display the contents of the Directory table. */
- data = standard_opcodes + info.li_opcode_base - 1;
+ symsec = SECTION_HEADER (relsec->sh_link);
+ symtab = GET_ELF_SYMBOLS (file, symsec);
- if (*data == 0)
- printf (_("\n The Directory Table is empty.\n"));
- else
+ for (rp = rela; rp < rela + nrelas; ++rp)
{
- printf (_("\n The Directory Table:\n"));
-
- while (*data != 0)
- {
- printf (_(" %s\n"), data);
-
- data += strlen ((char *) data) + 1;
- }
- }
-
- /* Skip the NUL at the end of the table. */
- data++;
+ unsigned char *loc;
- /* Display the contents of the File Name table. */
- if (*data == 0)
- printf (_("\n The File Name Table is empty.\n"));
- else
- {
- printf (_("\n The File Name Table:\n"));
- printf (_(" Entry\tDir\tTime\tSize\tName\n"));
+ if (rp->r_offset >= (bfd_vma) (start - sec_data)
+ && rp->r_offset < (bfd_vma) (end - sec_data) - reloc_size)
+ loc = sec_data + rp->r_offset;
+ else
+ continue;
- while (*data != 0)
+ if (is_32bit_elf)
{
- unsigned char *name;
- int bytes_read;
-
- printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
- name = data;
-
- data += strlen ((char *) data) + 1;
-
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- data += bytes_read;
- printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
- data += bytes_read;
- printf (_("%s\n"), name);
- }
- }
-
- /* Skip the NUL at the end of the table. */
- data++;
-
- /* Now display the statements. */
- printf (_("\n Line Number Statements:\n"));
-
- while (data < end_of_sequence)
- {
- unsigned char op_code;
- int adv;
- int bytes_read;
-
- op_code = *data++;
+ sym = symtab + ELF32_R_SYM (rp->r_info);
- if (op_code >= info.li_opcode_base)
- {
- op_code -= info.li_opcode_base;
- adv = (op_code / info.li_line_range) * info.li_min_insn_length;
- state_machine_regs.address += adv;
- printf (_(" Special opcode %d: advance Address by %d to 0x%lx"),
- op_code, adv, state_machine_regs.address);
- adv = (op_code % info.li_line_range) + info.li_line_base;
- state_machine_regs.line += adv;
- printf (_(" and Line by %d to %d\n"),
- adv, state_machine_regs.line);
+ if (ELF32_R_SYM (rp->r_info) != 0
+ && ELF32_ST_TYPE (sym->st_info) != STT_SECTION
+ /* Relocations against object symbols can happen,
+ eg when referencing a global array. For an
+ example of this see the _clz.o binary in libgcc.a. */
+ && ELF32_ST_TYPE (sym->st_info) != STT_OBJECT)
+ {
+ warn (_("%s: skipping unexpected symbol type %s in relocation in section .rela%s\n"),
+ get_symbol_type (ELF32_ST_TYPE (sym->st_info)),
+ SECTION_NAME (section));
+ continue;
+ }
}
- else switch (op_code)
+ else
{
- case DW_LNS_extended_op:
- data += process_extended_line_op (data, info.li_default_is_stmt,
- pointer_size);
- break;
-
- case DW_LNS_copy:
- printf (_(" Copy\n"));
- break;
-
- case DW_LNS_advance_pc:
- adv = info.li_min_insn_length * read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- state_machine_regs.address += adv;
- printf (_(" Advance PC by %d to %lx\n"), adv,
- state_machine_regs.address);
- break;
-
- case DW_LNS_advance_line:
- adv = read_leb128 (data, & bytes_read, 1);
- data += bytes_read;
- state_machine_regs.line += adv;
- printf (_(" Advance Line by %d to %d\n"), adv,
- state_machine_regs.line);
- break;
-
- case DW_LNS_set_file:
- adv = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- printf (_(" Set File Name to entry %d in the File Name Table\n"),
- adv);
- state_machine_regs.file = adv;
- break;
-
- case DW_LNS_set_column:
- adv = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- printf (_(" Set column to %d\n"), adv);
- state_machine_regs.column = adv;
- break;
-
- case DW_LNS_negate_stmt:
- adv = state_machine_regs.is_stmt;
- adv = ! adv;
- printf (_(" Set is_stmt to %d\n"), adv);
- state_machine_regs.is_stmt = adv;
- break;
-
- case DW_LNS_set_basic_block:
- printf (_(" Set basic block\n"));
- state_machine_regs.basic_block = 1;
- break;
-
- case DW_LNS_const_add_pc:
- adv = (((255 - info.li_opcode_base) / info.li_line_range)
- * info.li_min_insn_length);
- state_machine_regs.address += adv;
- printf (_(" Advance PC by constant %d to 0x%lx\n"), adv,
- state_machine_regs.address);
- break;
-
- case DW_LNS_fixed_advance_pc:
- adv = byte_get (data, 2);
- data += 2;
- state_machine_regs.address += adv;
- printf (_(" Advance PC by fixed size amount %d to 0x%lx\n"),
- adv, state_machine_regs.address);
- break;
-
- case DW_LNS_set_prologue_end:
- printf (_(" Set prologue_end to true\n"));
- break;
-
- case DW_LNS_set_epilogue_begin:
- printf (_(" Set epilogue_begin to true\n"));
- break;
-
- case DW_LNS_set_isa:
- adv = read_leb128 (data, & bytes_read, 0);
- data += bytes_read;
- printf (_(" Set ISA to %d\n"), adv);
- break;
-
- default:
- printf (_(" Unknown opcode %d with operands: "), op_code);
+ sym = symtab + ELF64_R_SYM (rp->r_info);
- for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
+ if (ELF64_R_SYM (rp->r_info) != 0
+ && ELF64_ST_TYPE (sym->st_info) != STT_SECTION
+ && ELF64_ST_TYPE (sym->st_info) != STT_OBJECT)
{
- printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
- i == 1 ? "" : ", ");
- data += bytes_read;
+ warn (_("skipping unexpected symbol type %s in relocation in section .rela.%s\n"),
+ get_symbol_type (ELF64_ST_TYPE (sym->st_info)),
+ SECTION_NAME (section));
+ continue;
}
- putchar ('\n');
- break;
}
- }
- putchar ('\n');
- }
-
- return 1;
-}
-static int
-display_debug_pubnames (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
-{
- DWARF2_Internal_PubNames pubnames;
- unsigned char *end;
-
- end = start + section->sh_size;
-
- printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
-
- while (start < end)
- {
- unsigned char *data;
- unsigned long offset;
- int offset_size, initial_length_size;
-
- data = start;
-
- pubnames.pn_length = byte_get (data, 4);
- data += 4;
- if (pubnames.pn_length == 0xffffffff)
- {
- pubnames.pn_length = byte_get (data, 8);
- data += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
-
- pubnames.pn_version = byte_get (data, 2);
- data += 2;
- pubnames.pn_offset = byte_get (data, offset_size);
- data += offset_size;
- pubnames.pn_size = byte_get (data, offset_size);
- data += offset_size;
-
- start += pubnames.pn_length + initial_length_size;
-
- if (pubnames.pn_version != 2 && pubnames.pn_version != 3)
- {
- static int warned = 0;
-
- if (! warned)
- {
- warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
- warned = 1;
- }
-
- continue;
+ byte_put (loc, rp->r_addend, reloc_size);
}
- printf (_(" Length: %ld\n"),
- pubnames.pn_length);
- printf (_(" Version: %d\n"),
- pubnames.pn_version);
- printf (_(" Offset into .debug_info section: %ld\n"),
- pubnames.pn_offset);
- printf (_(" Size of area in .debug_info section: %ld\n"),
- pubnames.pn_size);
-
- printf (_("\n Offset\tName\n"));
-
- do
- {
- offset = byte_get (data, offset_size);
-
- if (offset != 0)
- {
- data += offset_size;
- printf (" %-6ld\t\t%s\n", offset, data);
- data += strlen ((char *) data) + 1;
- }
- }
- while (offset != 0);
+ free (symtab);
+ free (rela);
+ break;
}
-
- printf ("\n");
return 1;
}
-static char *
-get_TAG_name (unsigned long tag)
-{
- switch (tag)
- {
- case DW_TAG_padding: return "DW_TAG_padding";
- case DW_TAG_array_type: return "DW_TAG_array_type";
- case DW_TAG_class_type: return "DW_TAG_class_type";
- case DW_TAG_entry_point: return "DW_TAG_entry_point";
- case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type";
- case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter";
- case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration";
- case DW_TAG_label: return "DW_TAG_label";
- case DW_TAG_lexical_block: return "DW_TAG_lexical_block";
- case DW_TAG_member: return "DW_TAG_member";
- case DW_TAG_pointer_type: return "DW_TAG_pointer_type";
- case DW_TAG_reference_type: return "DW_TAG_reference_type";
- case DW_TAG_compile_unit: return "DW_TAG_compile_unit";
- case DW_TAG_string_type: return "DW_TAG_string_type";
- case DW_TAG_structure_type: return "DW_TAG_structure_type";
- case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type";
- case DW_TAG_typedef: return "DW_TAG_typedef";
- case DW_TAG_union_type: return "DW_TAG_union_type";
- case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters";
- case DW_TAG_variant: return "DW_TAG_variant";
- case DW_TAG_common_block: return "DW_TAG_common_block";
- case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion";
- case DW_TAG_inheritance: return "DW_TAG_inheritance";
- case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine";
- case DW_TAG_module: return "DW_TAG_module";
- case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type";
- case DW_TAG_set_type: return "DW_TAG_set_type";
- case DW_TAG_subrange_type: return "DW_TAG_subrange_type";
- case DW_TAG_with_stmt: return "DW_TAG_with_stmt";
- case DW_TAG_access_declaration: return "DW_TAG_access_declaration";
- case DW_TAG_base_type: return "DW_TAG_base_type";
- case DW_TAG_catch_block: return "DW_TAG_catch_block";
- case DW_TAG_const_type: return "DW_TAG_const_type";
- case DW_TAG_constant: return "DW_TAG_constant";
- case DW_TAG_enumerator: return "DW_TAG_enumerator";
- case DW_TAG_file_type: return "DW_TAG_file_type";
- case DW_TAG_friend: return "DW_TAG_friend";
- case DW_TAG_namelist: return "DW_TAG_namelist";
- case DW_TAG_namelist_item: return "DW_TAG_namelist_item";
- case DW_TAG_packed_type: return "DW_TAG_packed_type";
- case DW_TAG_subprogram: return "DW_TAG_subprogram";
- case DW_TAG_template_type_param: return "DW_TAG_template_type_param";
- case DW_TAG_template_value_param: return "DW_TAG_template_value_param";
- case DW_TAG_thrown_type: return "DW_TAG_thrown_type";
- case DW_TAG_try_block: return "DW_TAG_try_block";
- case DW_TAG_variant_part: return "DW_TAG_variant_part";
- case DW_TAG_variable: return "DW_TAG_variable";
- case DW_TAG_volatile_type: return "DW_TAG_volatile_type";
- case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";
- case DW_TAG_format_label: return "DW_TAG_format_label";
- case DW_TAG_function_template: return "DW_TAG_function_template";
- case DW_TAG_class_template: return "DW_TAG_class_template";
- /* DWARF 2.1 values. */
- case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure";
- case DW_TAG_restrict_type: return "DW_TAG_restrict_type";
- case DW_TAG_interface_type: return "DW_TAG_interface_type";
- case DW_TAG_namespace: return "DW_TAG_namespace";
- case DW_TAG_imported_module: return "DW_TAG_imported_module";
- case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type";
- case DW_TAG_partial_unit: return "DW_TAG_partial_unit";
- case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
- /* UPC values. */
- case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type";
- case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type";
- case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type";
- default:
- {
- static char buffer[100];
-
- sprintf (buffer, _("Unknown TAG value: %lx"), tag);
- return buffer;
- }
- }
-}
-
-static char *
-get_AT_name (unsigned long attribute)
-{
- switch (attribute)
- {
- case DW_AT_sibling: return "DW_AT_sibling";
- case DW_AT_location: return "DW_AT_location";
- case DW_AT_name: return "DW_AT_name";
- case DW_AT_ordering: return "DW_AT_ordering";
- case DW_AT_subscr_data: return "DW_AT_subscr_data";
- case DW_AT_byte_size: return "DW_AT_byte_size";
- case DW_AT_bit_offset: return "DW_AT_bit_offset";
- case DW_AT_bit_size: return "DW_AT_bit_size";
- case DW_AT_element_list: return "DW_AT_element_list";
- case DW_AT_stmt_list: return "DW_AT_stmt_list";
- case DW_AT_low_pc: return "DW_AT_low_pc";
- case DW_AT_high_pc: return "DW_AT_high_pc";
- case DW_AT_language: return "DW_AT_language";
- case DW_AT_member: return "DW_AT_member";
- case DW_AT_discr: return "DW_AT_discr";
- case DW_AT_discr_value: return "DW_AT_discr_value";
- case DW_AT_visibility: return "DW_AT_visibility";
- case DW_AT_import: return "DW_AT_import";
- case DW_AT_string_length: return "DW_AT_string_length";
- case DW_AT_common_reference: return "DW_AT_common_reference";
- case DW_AT_comp_dir: return "DW_AT_comp_dir";
- case DW_AT_const_value: return "DW_AT_const_value";
- case DW_AT_containing_type: return "DW_AT_containing_type";
- case DW_AT_default_value: return "DW_AT_default_value";
- case DW_AT_inline: return "DW_AT_inline";
- case DW_AT_is_optional: return "DW_AT_is_optional";
- case DW_AT_lower_bound: return "DW_AT_lower_bound";
- case DW_AT_producer: return "DW_AT_producer";
- case DW_AT_prototyped: return "DW_AT_prototyped";
- case DW_AT_return_addr: return "DW_AT_return_addr";
- case DW_AT_start_scope: return "DW_AT_start_scope";
- case DW_AT_stride_size: return "DW_AT_stride_size";
- case DW_AT_upper_bound: return "DW_AT_upper_bound";
- case DW_AT_abstract_origin: return "DW_AT_abstract_origin";
- case DW_AT_accessibility: return "DW_AT_accessibility";
- case DW_AT_address_class: return "DW_AT_address_class";
- case DW_AT_artificial: return "DW_AT_artificial";
- case DW_AT_base_types: return "DW_AT_base_types";
- case DW_AT_calling_convention: return "DW_AT_calling_convention";
- case DW_AT_count: return "DW_AT_count";
- case DW_AT_data_member_location: return "DW_AT_data_member_location";
- case DW_AT_decl_column: return "DW_AT_decl_column";
- case DW_AT_decl_file: return "DW_AT_decl_file";
- case DW_AT_decl_line: return "DW_AT_decl_line";
- case DW_AT_declaration: return "DW_AT_declaration";
- case DW_AT_discr_list: return "DW_AT_discr_list";
- case DW_AT_encoding: return "DW_AT_encoding";
- case DW_AT_external: return "DW_AT_external";
- case DW_AT_frame_base: return "DW_AT_frame_base";
- case DW_AT_friend: return "DW_AT_friend";
- case DW_AT_identifier_case: return "DW_AT_identifier_case";
- case DW_AT_macro_info: return "DW_AT_macro_info";
- case DW_AT_namelist_items: return "DW_AT_namelist_items";
- case DW_AT_priority: return "DW_AT_priority";
- case DW_AT_segment: return "DW_AT_segment";
- case DW_AT_specification: return "DW_AT_specification";
- case DW_AT_static_link: return "DW_AT_static_link";
- case DW_AT_type: return "DW_AT_type";
- case DW_AT_use_location: return "DW_AT_use_location";
- case DW_AT_variable_parameter: return "DW_AT_variable_parameter";
- case DW_AT_virtuality: return "DW_AT_virtuality";
- case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location";
- /* DWARF 2.1 values. */
- case DW_AT_allocated: return "DW_AT_allocated";
- case DW_AT_associated: return "DW_AT_associated";
- case DW_AT_data_location: return "DW_AT_data_location";
- case DW_AT_stride: return "DW_AT_stride";
- case DW_AT_entry_pc: return "DW_AT_entry_pc";
- case DW_AT_use_UTF8: return "DW_AT_use_UTF8";
- case DW_AT_extension: return "DW_AT_extension";
- case DW_AT_ranges: return "DW_AT_ranges";
- case DW_AT_trampoline: return "DW_AT_trampoline";
- case DW_AT_call_column: return "DW_AT_call_column";
- case DW_AT_call_file: return "DW_AT_call_file";
- case DW_AT_call_line: return "DW_AT_call_line";
- /* SGI/MIPS extensions. */
- case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde";
- case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
- case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
- case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
- case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
- case DW_AT_MIPS_software_pipeline_depth:
- return "DW_AT_MIPS_software_pipeline_depth";
- case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
- case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
- case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
- case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
- case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
- /* GNU extensions. */
- case DW_AT_sf_names: return "DW_AT_sf_names";
- case DW_AT_src_info: return "DW_AT_src_info";
- case DW_AT_mac_info: return "DW_AT_mac_info";
- case DW_AT_src_coords: return "DW_AT_src_coords";
- case DW_AT_body_begin: return "DW_AT_body_begin";
- case DW_AT_body_end: return "DW_AT_body_end";
- case DW_AT_GNU_vector: return "DW_AT_GNU_vector";
- /* UPC extension. */
- case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled";
- default:
- {
- static char buffer[100];
-
- sprintf (buffer, _("Unknown AT value: %lx"), attribute);
- return buffer;
- }
- }
-}
-
-static char *
-get_FORM_name (unsigned long form)
-{
- switch (form)
- {
- case DW_FORM_addr: return "DW_FORM_addr";
- case DW_FORM_block2: return "DW_FORM_block2";
- case DW_FORM_block4: return "DW_FORM_block4";
- case DW_FORM_data2: return "DW_FORM_data2";
- case DW_FORM_data4: return "DW_FORM_data4";
- case DW_FORM_data8: return "DW_FORM_data8";
- case DW_FORM_string: return "DW_FORM_string";
- case DW_FORM_block: return "DW_FORM_block";
- case DW_FORM_block1: return "DW_FORM_block1";
- case DW_FORM_data1: return "DW_FORM_data1";
- case DW_FORM_flag: return "DW_FORM_flag";
- case DW_FORM_sdata: return "DW_FORM_sdata";
- case DW_FORM_strp: return "DW_FORM_strp";
- case DW_FORM_udata: return "DW_FORM_udata";
- case DW_FORM_ref_addr: return "DW_FORM_ref_addr";
- case DW_FORM_ref1: return "DW_FORM_ref1";
- case DW_FORM_ref2: return "DW_FORM_ref2";
- case DW_FORM_ref4: return "DW_FORM_ref4";
- case DW_FORM_ref8: return "DW_FORM_ref8";
- case DW_FORM_ref_udata: return "DW_FORM_ref_udata";
- case DW_FORM_indirect: return "DW_FORM_indirect";
- default:
- {
- static char buffer[100];
-
- sprintf (buffer, _("Unknown FORM value: %lx"), form);
- return buffer;
- }
- }
-}
-
/* FIXME: There are better and more efficient ways to handle
these structures. For now though, I just want something that
is simple to implement. */
@@ -7973,128 +7424,122 @@ process_abbrev_section (unsigned char *start, unsigned char *end)
return NULL;
}
-
-static int
-display_debug_macinfo (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
+static char *
+get_TAG_name (unsigned long tag)
{
- unsigned char *end = start + section->sh_size;
- unsigned char *curr = start;
- unsigned int bytes_read;
- enum dwarf_macinfo_record_type op;
-
- printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
-
- while (curr < end)
+ switch (tag)
{
- unsigned int lineno;
- const char *string;
-
- op = *curr;
- curr++;
-
- switch (op)
- {
- case DW_MACINFO_start_file:
- {
- unsigned int filenum;
-
- lineno = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
- filenum = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
-
- printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
- lineno, filenum);
- }
- break;
-
- case DW_MACINFO_end_file:
- printf (_(" DW_MACINFO_end_file\n"));
- break;
-
- case DW_MACINFO_define:
- lineno = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
- string = curr;
- curr += strlen (string) + 1;
- printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
- lineno, string);
- break;
-
- case DW_MACINFO_undef:
- lineno = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
- string = curr;
- curr += strlen (string) + 1;
- printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
- lineno, string);
- break;
-
- case DW_MACINFO_vendor_ext:
- {
- unsigned int constant;
+ case DW_TAG_padding: return "DW_TAG_padding";
+ case DW_TAG_array_type: return "DW_TAG_array_type";
+ case DW_TAG_class_type: return "DW_TAG_class_type";
+ case DW_TAG_entry_point: return "DW_TAG_entry_point";
+ case DW_TAG_enumeration_type: return "DW_TAG_enumeration_type";
+ case DW_TAG_formal_parameter: return "DW_TAG_formal_parameter";
+ case DW_TAG_imported_declaration: return "DW_TAG_imported_declaration";
+ case DW_TAG_label: return "DW_TAG_label";
+ case DW_TAG_lexical_block: return "DW_TAG_lexical_block";
+ case DW_TAG_member: return "DW_TAG_member";
+ case DW_TAG_pointer_type: return "DW_TAG_pointer_type";
+ case DW_TAG_reference_type: return "DW_TAG_reference_type";
+ case DW_TAG_compile_unit: return "DW_TAG_compile_unit";
+ case DW_TAG_string_type: return "DW_TAG_string_type";
+ case DW_TAG_structure_type: return "DW_TAG_structure_type";
+ case DW_TAG_subroutine_type: return "DW_TAG_subroutine_type";
+ case DW_TAG_typedef: return "DW_TAG_typedef";
+ case DW_TAG_union_type: return "DW_TAG_union_type";
+ case DW_TAG_unspecified_parameters: return "DW_TAG_unspecified_parameters";
+ case DW_TAG_variant: return "DW_TAG_variant";
+ case DW_TAG_common_block: return "DW_TAG_common_block";
+ case DW_TAG_common_inclusion: return "DW_TAG_common_inclusion";
+ case DW_TAG_inheritance: return "DW_TAG_inheritance";
+ case DW_TAG_inlined_subroutine: return "DW_TAG_inlined_subroutine";
+ case DW_TAG_module: return "DW_TAG_module";
+ case DW_TAG_ptr_to_member_type: return "DW_TAG_ptr_to_member_type";
+ case DW_TAG_set_type: return "DW_TAG_set_type";
+ case DW_TAG_subrange_type: return "DW_TAG_subrange_type";
+ case DW_TAG_with_stmt: return "DW_TAG_with_stmt";
+ case DW_TAG_access_declaration: return "DW_TAG_access_declaration";
+ case DW_TAG_base_type: return "DW_TAG_base_type";
+ case DW_TAG_catch_block: return "DW_TAG_catch_block";
+ case DW_TAG_const_type: return "DW_TAG_const_type";
+ case DW_TAG_constant: return "DW_TAG_constant";
+ case DW_TAG_enumerator: return "DW_TAG_enumerator";
+ case DW_TAG_file_type: return "DW_TAG_file_type";
+ case DW_TAG_friend: return "DW_TAG_friend";
+ case DW_TAG_namelist: return "DW_TAG_namelist";
+ case DW_TAG_namelist_item: return "DW_TAG_namelist_item";
+ case DW_TAG_packed_type: return "DW_TAG_packed_type";
+ case DW_TAG_subprogram: return "DW_TAG_subprogram";
+ case DW_TAG_template_type_param: return "DW_TAG_template_type_param";
+ case DW_TAG_template_value_param: return "DW_TAG_template_value_param";
+ case DW_TAG_thrown_type: return "DW_TAG_thrown_type";
+ case DW_TAG_try_block: return "DW_TAG_try_block";
+ case DW_TAG_variant_part: return "DW_TAG_variant_part";
+ case DW_TAG_variable: return "DW_TAG_variable";
+ case DW_TAG_volatile_type: return "DW_TAG_volatile_type";
+ case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";
+ case DW_TAG_format_label: return "DW_TAG_format_label";
+ case DW_TAG_function_template: return "DW_TAG_function_template";
+ case DW_TAG_class_template: return "DW_TAG_class_template";
+ /* DWARF 2.1 values. */
+ case DW_TAG_dwarf_procedure: return "DW_TAG_dwarf_procedure";
+ case DW_TAG_restrict_type: return "DW_TAG_restrict_type";
+ case DW_TAG_interface_type: return "DW_TAG_interface_type";
+ case DW_TAG_namespace: return "DW_TAG_namespace";
+ case DW_TAG_imported_module: return "DW_TAG_imported_module";
+ case DW_TAG_unspecified_type: return "DW_TAG_unspecified_type";
+ case DW_TAG_partial_unit: return "DW_TAG_partial_unit";
+ case DW_TAG_imported_unit: return "DW_TAG_imported_unit";
+ /* UPC values. */
+ case DW_TAG_upc_shared_type: return "DW_TAG_upc_shared_type";
+ case DW_TAG_upc_strict_type: return "DW_TAG_upc_strict_type";
+ case DW_TAG_upc_relaxed_type: return "DW_TAG_upc_relaxed_type";
+ default:
+ {
+ static char buffer[100];
- constant = read_leb128 (curr, & bytes_read, 0);
- curr += bytes_read;
- string = curr;
- curr += strlen (string) + 1;
- printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
- constant, string);
- }
- break;
- }
+ sprintf (buffer, _("Unknown TAG value: %lx"), tag);
+ return buffer;
+ }
}
-
- return 1;
}
-
-static int
-display_debug_abbrev (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
+static char *
+get_FORM_name (unsigned long form)
{
- abbrev_entry *entry;
- unsigned char *end = start + section->sh_size;
-
- printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
-
- do
+ switch (form)
{
- start = process_abbrev_section (start, end);
-
- if (first_abbrev == NULL)
- continue;
-
- printf (_(" Number TAG\n"));
-
- for (entry = first_abbrev; entry; entry = entry->next)
- {
- abbrev_attr *attr;
-
- printf (_(" %ld %s [%s]\n"),
- entry->entry,
- get_TAG_name (entry->tag),
- entry->children ? _("has children") : _("no children"));
-
- for (attr = entry->first_attr; attr; attr = attr->next)
- printf (_(" %-18s %s\n"),
- get_AT_name (attr->attribute),
- get_FORM_name (attr->form));
- }
+ case DW_FORM_addr: return "DW_FORM_addr";
+ case DW_FORM_block2: return "DW_FORM_block2";
+ case DW_FORM_block4: return "DW_FORM_block4";
+ case DW_FORM_data2: return "DW_FORM_data2";
+ case DW_FORM_data4: return "DW_FORM_data4";
+ case DW_FORM_data8: return "DW_FORM_data8";
+ case DW_FORM_string: return "DW_FORM_string";
+ case DW_FORM_block: return "DW_FORM_block";
+ case DW_FORM_block1: return "DW_FORM_block1";
+ case DW_FORM_data1: return "DW_FORM_data1";
+ case DW_FORM_flag: return "DW_FORM_flag";
+ case DW_FORM_sdata: return "DW_FORM_sdata";
+ case DW_FORM_strp: return "DW_FORM_strp";
+ case DW_FORM_udata: return "DW_FORM_udata";
+ case DW_FORM_ref_addr: return "DW_FORM_ref_addr";
+ case DW_FORM_ref1: return "DW_FORM_ref1";
+ case DW_FORM_ref2: return "DW_FORM_ref2";
+ case DW_FORM_ref4: return "DW_FORM_ref4";
+ case DW_FORM_ref8: return "DW_FORM_ref8";
+ case DW_FORM_ref_udata: return "DW_FORM_ref_udata";
+ case DW_FORM_indirect: return "DW_FORM_indirect";
+ default:
+ {
+ static char buffer[100];
- free_abbrevs ();
+ sprintf (buffer, _("Unknown FORM value: %lx"), form);
+ return buffer;
+ }
}
- while (start);
-
- printf ("\n");
-
- return 1;
}
-
static unsigned char *
display_block (unsigned char *data, unsigned long length)
{
@@ -8109,7 +7554,8 @@ display_block (unsigned char *data, unsigned long length)
static void
decode_location_expression (unsigned char * data,
unsigned int pointer_size,
- unsigned long length)
+ unsigned long length,
+ unsigned long cu_offset)
{
unsigned op;
int bytes_read;
@@ -8406,11 +7852,15 @@ decode_location_expression (unsigned char * data,
printf ("DW_OP_push_object_address");
break;
case DW_OP_call2:
- printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2));
+ /* XXX: Strictly speaking for 64-bit DWARF3 files
+ this ought to be an 8-byte wide computation. */
+ printf ("DW_OP_call2: <%lx>", (long) byte_get (data, 2) + cu_offset);
data += 2;
break;
case DW_OP_call4:
- printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4));
+ /* XXX: Strictly speaking for 64-bit DWARF3 files
+ this ought to be an 8-byte wide computation. */
+ printf ("DW_OP_call4: <%lx>", (long) byte_get (data, 4) + cu_offset);
data += 4;
break;
case DW_OP_call_ref:
@@ -8438,253 +7888,6 @@ decode_location_expression (unsigned char * data,
}
}
-static const char *debug_loc_contents;
-static bfd_vma debug_loc_size;
-
-static void
-load_debug_loc (FILE *file)
-{
- Elf_Internal_Shdr *sec;
-
- /* If it is already loaded, do nothing. */
- if (debug_loc_contents != NULL)
- return;
-
- /* Locate the .debug_loc section. */
- sec = find_section (".debug_loc");
- if (sec == NULL)
- return;
-
- debug_loc_size = sec->sh_size;
-
- debug_loc_contents = get_data (NULL, file, sec->sh_offset, sec->sh_size,
- _("debug_loc section data"));
-}
-
-static void
-free_debug_loc (void)
-{
- if (debug_loc_contents == NULL)
- return;
-
- free ((char *) debug_loc_contents);
- debug_loc_contents = NULL;
- debug_loc_size = 0;
-}
-
-
-static int
-display_debug_loc (Elf_Internal_Shdr *section,
- unsigned char *start, FILE *file)
-{
- unsigned char *section_end;
- unsigned long bytes;
- unsigned char *section_begin = start;
- bfd_vma addr;
- unsigned int comp_unit = 0;
-
- addr = section->sh_addr;
- bytes = section->sh_size;
- section_end = start + bytes;
-
- if (bytes == 0)
- {
- printf (_("\nThe .debug_loc section is empty.\n"));
- return 0;
- }
-
- get_debug_info (file);
-
- printf (_("Contents of the .debug_loc section:\n\n"));
- printf (_("\n Offset Begin End Expression\n"));
-
- while (start < section_end)
- {
- unsigned long begin;
- unsigned long end;
- unsigned short length;
- unsigned long offset;
- unsigned int pointer_size;
-
- offset = start - section_begin;
-
- /* Get the pointer size from the comp unit associated
- with this block of location information. */
- pointer_size = get_pointer_size_of_comp_unit (comp_unit, ".debug_loc");
-
- comp_unit ++;
-
- while (1)
- {
- begin = byte_get (start, pointer_size);
- start += pointer_size;
- end = byte_get (start, pointer_size);
- start += pointer_size;
-
- if (begin == 0 && end == 0)
- break;
-
- /* For now, skip any base address specifiers. */
- if (begin == 0xffffffff)
- continue;
-
- begin += addr;
- end += addr;
-
- length = byte_get (start, 2);
- start += 2;
-
- printf (" %8.8lx %8.8lx %8.8lx (", offset, begin, end);
- decode_location_expression (start, pointer_size, length);
- printf (")\n");
-
- start += length;
- }
- printf ("\n");
- }
- return 1;
-}
-
-static const char *debug_str_contents;
-static bfd_vma debug_str_size;
-
-static void
-load_debug_str (FILE *file)
-{
- Elf_Internal_Shdr *sec;
-
- /* If it is already loaded, do nothing. */
- if (debug_str_contents != NULL)
- return;
-
- /* Locate the .debug_str section. */
- sec = find_section (".debug_str");
- if (sec == NULL)
- return;
-
- debug_str_size = sec->sh_size;
-
- debug_str_contents = get_data (NULL, file, sec->sh_offset, sec->sh_size,
- _("debug_str section data"));
-}
-
-static void
-free_debug_str (void)
-{
- if (debug_str_contents == NULL)
- return;
-
- free ((char *) debug_str_contents);
- debug_str_contents = NULL;
- debug_str_size = 0;
-}
-
-static const char *
-fetch_indirect_string (unsigned long offset)
-{
- if (debug_str_contents == NULL)
- return _("<no .debug_str section>");
-
- if (offset > debug_str_size)
- return _("<offset is too big>");
-
- return debug_str_contents + offset;
-}
-
-static int
-display_debug_str (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
-{
- unsigned long bytes;
- bfd_vma addr;
-
- addr = section->sh_addr;
- bytes = section->sh_size;
-
- if (bytes == 0)
- {
- printf (_("\nThe .debug_str section is empty.\n"));
- return 0;
- }
-
- printf (_("Contents of the .debug_str section:\n\n"));
-
- while (bytes)
- {
- int j;
- int k;
- int lbytes;
-
- lbytes = (bytes > 16 ? 16 : bytes);
-
- printf (" 0x%8.8lx ", (unsigned long) addr);
-
- for (j = 0; j < 16; j++)
- {
- if (j < lbytes)
- printf ("%2.2x", start[j]);
- else
- printf (" ");
-
- if ((j & 3) == 3)
- printf (" ");
- }
-
- for (j = 0; j < lbytes; j++)
- {
- k = start[j];
- if (k >= ' ' && k < 0x80)
- printf ("%c", k);
- else
- printf (".");
- }
-
- putchar ('\n');
-
- start += lbytes;
- addr += lbytes;
- bytes -= lbytes;
- }
-
- return 1;
-}
-
-static const char * debug_range_contents;
-static unsigned long debug_range_size;
-
-static void
-load_debug_range (FILE *file)
-{
- Elf_Internal_Shdr *sec;
-
- /* If it is already loaded, do nothing. */
- if (debug_range_contents != NULL)
- return;
-
- /* Locate the .debug_str section. */
- sec = find_section (".debug_ranges");
- if (sec == NULL)
- return;
-
- debug_range_size = sec->sh_size;
-
- debug_range_contents = get_data (NULL, file, sec->sh_offset, sec->sh_size,
- _("debug_range section data"));
-}
-
-static void
-free_debug_range (void)
-{
- if (debug_range_contents == NULL)
- return;
-
- free ((char *) debug_range_contents);
- debug_range_contents = NULL;
- debug_range_size = 0;
-}
-
-
/* Decode a DW_AT_ranges attribute for 64bit DWARF3 . */
static void
@@ -8799,6 +8002,23 @@ decode_range (unsigned long offset, bfd_vma base_address)
printf (")");
}
+/* This structure records the information that
+ we extract from the.debug_info section. */
+typedef struct
+{
+ unsigned int pointer_size;
+ unsigned long cu_offset;
+ /* This is an array of offsets to the location list table. */
+ unsigned long *loc_offsets;
+ unsigned int num_loc_offsets;
+ unsigned int max_loc_offsets;
+}
+debug_info;
+
+static debug_info * debug_information = NULL;
+static unsigned int num_debug_info_entries = 0;
+static unsigned int last_pointer_size = 0;
+static int warned_about_missing_comp_units = FALSE;
static unsigned char *
read_and_display_attr_value (unsigned long attribute,
@@ -8807,7 +8027,9 @@ read_and_display_attr_value (unsigned long attribute,
unsigned long cu_offset,
unsigned long pointer_size,
unsigned long offset_size,
- int dwarf_version)
+ int dwarf_version,
+ debug_info *debug_info_p,
+ int do_loc)
{
static unsigned long saved_DW_AT_low_pc = 0;
unsigned long uvalue = 0;
@@ -8878,78 +8100,109 @@ read_and_display_attr_value (unsigned long attribute,
case DW_FORM_indirect:
form = read_leb128 (data, & bytes_read, 0);
data += bytes_read;
- printf (" %s", get_FORM_name (form));
- return read_and_display_attr_value (attribute, form, data, cu_offset,
- pointer_size, offset_size,
- dwarf_version);
+ if (!do_loc)
+ printf (" %s", get_FORM_name (form));
+ return read_and_display_attr_value (attribute, form, data,
+ cu_offset, pointer_size,
+ offset_size, dwarf_version,
+ debug_info_p, do_loc);
}
switch (form)
{
case DW_FORM_ref_addr:
- printf (" <#%lx>", uvalue);
+ if (!do_loc)
+ printf (" <#%lx>", uvalue);
break;
case DW_FORM_ref1:
case DW_FORM_ref2:
case DW_FORM_ref4:
case DW_FORM_ref_udata:
- printf (" <%lx>", uvalue + cu_offset);
+ if (!do_loc)
+ printf (" <%lx>", uvalue + cu_offset);
break;
+ case DW_FORM_data4:
case DW_FORM_addr:
- printf (" %#lx", uvalue);
+ if (!do_loc)
+ printf (" %#lx", uvalue);
break;
case DW_FORM_flag:
case DW_FORM_data1:
case DW_FORM_data2:
- case DW_FORM_data4:
case DW_FORM_sdata:
case DW_FORM_udata:
- printf (" %ld", uvalue);
+ if (!do_loc)
+ printf (" %ld", uvalue);
break;
case DW_FORM_ref8:
case DW_FORM_data8:
- uvalue = byte_get (data, 4);
- printf (" %lx", uvalue);
- printf (" %lx", (unsigned long) byte_get (data + 4, 4));
+ if (!do_loc)
+ {
+ uvalue = byte_get (data, 4);
+ printf (" %lx", uvalue);
+ printf (" %lx", (unsigned long) byte_get (data + 4, 4));
+ }
+ if ((do_loc || do_debug_loc)
+ && num_debug_info_entries == 0)
+ {
+ if (sizeof (uvalue) == 8)
+ uvalue = byte_get (data, 8);
+ else
+ error (_("DW_FORM_data8 is unsupported when sizeof (unsigned long) != 8\n"));
+ }
data += 8;
break;
case DW_FORM_string:
- printf (" %s", data);
+ if (!do_loc)
+ printf (" %s", data);
data += strlen ((char *) data) + 1;
break;
case DW_FORM_block:
uvalue = read_leb128 (data, & bytes_read, 0);
block_start = data + bytes_read;
- data = display_block (block_start, uvalue);
+ if (do_loc)
+ data = block_start + uvalue;
+ else
+ data = display_block (block_start, uvalue);
break;
case DW_FORM_block1:
uvalue = byte_get (data, 1);
block_start = data + 1;
- data = display_block (block_start, uvalue);
+ if (do_loc)
+ data = block_start + uvalue;
+ else
+ data = display_block (block_start, uvalue);
break;
case DW_FORM_block2:
uvalue = byte_get (data, 2);
block_start = data + 2;
- data = display_block (block_start, uvalue);
+ if (do_loc)
+ data = block_start + uvalue;
+ else
+ data = display_block (block_start, uvalue);
break;
case DW_FORM_block4:
uvalue = byte_get (data, 4);
block_start = data + 4;
- data = display_block (block_start, uvalue);
+ if (do_loc)
+ data = block_start + uvalue;
+ else
+ data = display_block (block_start, uvalue);
break;
case DW_FORM_strp:
- printf (_(" (indirect string, offset: 0x%lx): %s"),
- uvalue, fetch_indirect_string (uvalue));
+ if (!do_loc)
+ printf (_(" (indirect string, offset: 0x%lx): %s"),
+ uvalue, fetch_indirect_string (uvalue));
break;
case DW_FORM_indirect:
@@ -8962,6 +8215,47 @@ read_and_display_attr_value (unsigned long attribute,
}
/* For some attributes we can display further information. */
+ if ((do_loc || do_debug_loc)
+ && num_debug_info_entries == 0)
+ {
+ switch (attribute)
+ {
+ case DW_AT_frame_base:
+ case DW_AT_location:
+ case DW_AT_data_member_location:
+ case DW_AT_vtable_elem_location:
+ case DW_AT_allocated:
+ case DW_AT_associated:
+ case DW_AT_data_location:
+ case DW_AT_stride:
+ case DW_AT_upper_bound:
+ case DW_AT_lower_bound:
+ if (form == DW_FORM_data4 || form == DW_FORM_data8)
+ {
+ /* Process location list. */
+ unsigned int max = debug_info_p->max_loc_offsets;
+ unsigned int num = debug_info_p->num_loc_offsets;
+
+ if (max == 0 || num >= max)
+ {
+ max += 1024;
+ debug_info_p->loc_offsets
+ = xrealloc (debug_info_p->loc_offsets,
+ max * sizeof (*debug_info_p->loc_offsets));
+ debug_info_p->max_loc_offsets = max;
+ }
+ debug_info_p->loc_offsets [num] = uvalue;
+ debug_info_p->num_loc_offsets++;
+ }
+ break;
+
+ default:
+ break;
+ }
+ }
+
+ if (do_loc)
+ return data;
printf ("\t");
@@ -9119,7 +8413,7 @@ read_and_display_attr_value (unsigned long attribute,
if (block_start)
{
printf ("(");
- decode_location_expression (block_start, pointer_size, uvalue);
+ decode_location_expression (block_start, pointer_size, uvalue, cu_offset);
printf (")");
}
else if (form == DW_FORM_data4 || form == DW_FORM_data8)
@@ -9146,6 +8440,119 @@ read_and_display_attr_value (unsigned long attribute,
return data;
}
+static char *
+get_AT_name (unsigned long attribute)
+{
+ switch (attribute)
+ {
+ case DW_AT_sibling: return "DW_AT_sibling";
+ case DW_AT_location: return "DW_AT_location";
+ case DW_AT_name: return "DW_AT_name";
+ case DW_AT_ordering: return "DW_AT_ordering";
+ case DW_AT_subscr_data: return "DW_AT_subscr_data";
+ case DW_AT_byte_size: return "DW_AT_byte_size";
+ case DW_AT_bit_offset: return "DW_AT_bit_offset";
+ case DW_AT_bit_size: return "DW_AT_bit_size";
+ case DW_AT_element_list: return "DW_AT_element_list";
+ case DW_AT_stmt_list: return "DW_AT_stmt_list";
+ case DW_AT_low_pc: return "DW_AT_low_pc";
+ case DW_AT_high_pc: return "DW_AT_high_pc";
+ case DW_AT_language: return "DW_AT_language";
+ case DW_AT_member: return "DW_AT_member";
+ case DW_AT_discr: return "DW_AT_discr";
+ case DW_AT_discr_value: return "DW_AT_discr_value";
+ case DW_AT_visibility: return "DW_AT_visibility";
+ case DW_AT_import: return "DW_AT_import";
+ case DW_AT_string_length: return "DW_AT_string_length";
+ case DW_AT_common_reference: return "DW_AT_common_reference";
+ case DW_AT_comp_dir: return "DW_AT_comp_dir";
+ case DW_AT_const_value: return "DW_AT_const_value";
+ case DW_AT_containing_type: return "DW_AT_containing_type";
+ case DW_AT_default_value: return "DW_AT_default_value";
+ case DW_AT_inline: return "DW_AT_inline";
+ case DW_AT_is_optional: return "DW_AT_is_optional";
+ case DW_AT_lower_bound: return "DW_AT_lower_bound";
+ case DW_AT_producer: return "DW_AT_producer";
+ case DW_AT_prototyped: return "DW_AT_prototyped";
+ case DW_AT_return_addr: return "DW_AT_return_addr";
+ case DW_AT_start_scope: return "DW_AT_start_scope";
+ case DW_AT_stride_size: return "DW_AT_stride_size";
+ case DW_AT_upper_bound: return "DW_AT_upper_bound";
+ case DW_AT_abstract_origin: return "DW_AT_abstract_origin";
+ case DW_AT_accessibility: return "DW_AT_accessibility";
+ case DW_AT_address_class: return "DW_AT_address_class";
+ case DW_AT_artificial: return "DW_AT_artificial";
+ case DW_AT_base_types: return "DW_AT_base_types";
+ case DW_AT_calling_convention: return "DW_AT_calling_convention";
+ case DW_AT_count: return "DW_AT_count";
+ case DW_AT_data_member_location: return "DW_AT_data_member_location";
+ case DW_AT_decl_column: return "DW_AT_decl_column";
+ case DW_AT_decl_file: return "DW_AT_decl_file";
+ case DW_AT_decl_line: return "DW_AT_decl_line";
+ case DW_AT_declaration: return "DW_AT_declaration";
+ case DW_AT_discr_list: return "DW_AT_discr_list";
+ case DW_AT_encoding: return "DW_AT_encoding";
+ case DW_AT_external: return "DW_AT_external";
+ case DW_AT_frame_base: return "DW_AT_frame_base";
+ case DW_AT_friend: return "DW_AT_friend";
+ case DW_AT_identifier_case: return "DW_AT_identifier_case";
+ case DW_AT_macro_info: return "DW_AT_macro_info";
+ case DW_AT_namelist_items: return "DW_AT_namelist_items";
+ case DW_AT_priority: return "DW_AT_priority";
+ case DW_AT_segment: return "DW_AT_segment";
+ case DW_AT_specification: return "DW_AT_specification";
+ case DW_AT_static_link: return "DW_AT_static_link";
+ case DW_AT_type: return "DW_AT_type";
+ case DW_AT_use_location: return "DW_AT_use_location";
+ case DW_AT_variable_parameter: return "DW_AT_variable_parameter";
+ case DW_AT_virtuality: return "DW_AT_virtuality";
+ case DW_AT_vtable_elem_location: return "DW_AT_vtable_elem_location";
+ /* DWARF 2.1 values. */
+ case DW_AT_allocated: return "DW_AT_allocated";
+ case DW_AT_associated: return "DW_AT_associated";
+ case DW_AT_data_location: return "DW_AT_data_location";
+ case DW_AT_stride: return "DW_AT_stride";
+ case DW_AT_entry_pc: return "DW_AT_entry_pc";
+ case DW_AT_use_UTF8: return "DW_AT_use_UTF8";
+ case DW_AT_extension: return "DW_AT_extension";
+ case DW_AT_ranges: return "DW_AT_ranges";
+ case DW_AT_trampoline: return "DW_AT_trampoline";
+ case DW_AT_call_column: return "DW_AT_call_column";
+ case DW_AT_call_file: return "DW_AT_call_file";
+ case DW_AT_call_line: return "DW_AT_call_line";
+ /* SGI/MIPS extensions. */
+ case DW_AT_MIPS_fde: return "DW_AT_MIPS_fde";
+ case DW_AT_MIPS_loop_begin: return "DW_AT_MIPS_loop_begin";
+ case DW_AT_MIPS_tail_loop_begin: return "DW_AT_MIPS_tail_loop_begin";
+ case DW_AT_MIPS_epilog_begin: return "DW_AT_MIPS_epilog_begin";
+ case DW_AT_MIPS_loop_unroll_factor: return "DW_AT_MIPS_loop_unroll_factor";
+ case DW_AT_MIPS_software_pipeline_depth:
+ return "DW_AT_MIPS_software_pipeline_depth";
+ case DW_AT_MIPS_linkage_name: return "DW_AT_MIPS_linkage_name";
+ case DW_AT_MIPS_stride: return "DW_AT_MIPS_stride";
+ case DW_AT_MIPS_abstract_name: return "DW_AT_MIPS_abstract_name";
+ case DW_AT_MIPS_clone_origin: return "DW_AT_MIPS_clone_origin";
+ case DW_AT_MIPS_has_inlines: return "DW_AT_MIPS_has_inlines";
+ /* GNU extensions. */
+ case DW_AT_sf_names: return "DW_AT_sf_names";
+ case DW_AT_src_info: return "DW_AT_src_info";
+ case DW_AT_mac_info: return "DW_AT_mac_info";
+ case DW_AT_src_coords: return "DW_AT_src_coords";
+ case DW_AT_body_begin: return "DW_AT_body_begin";
+ case DW_AT_body_end: return "DW_AT_body_end";
+ case DW_AT_GNU_vector: return "DW_AT_GNU_vector";
+ /* UPC extension. */
+ case DW_AT_upc_threads_scaled: return "DW_AT_upc_threads_scaled";
+ default:
+ {
+ static char buffer[100];
+
+ sprintf (buffer, _("Unknown AT value: %lx"), attribute);
+ return buffer;
+ }
+ }
+}
+
static unsigned char *
read_and_display_attr (unsigned long attribute,
unsigned long form,
@@ -9153,119 +8560,86 @@ read_and_display_attr (unsigned long attribute,
unsigned long cu_offset,
unsigned long pointer_size,
unsigned long offset_size,
- int dwarf_version)
+ int dwarf_version,
+ debug_info *debug_info_p,
+ int do_loc)
{
- printf (" %-18s:", get_AT_name (attribute));
+ if (!do_loc)
+ printf (" %-18s:", get_AT_name (attribute));
data = read_and_display_attr_value (attribute, form, data, cu_offset,
- pointer_size, offset_size, dwarf_version);
- printf ("\n");
+ pointer_size, offset_size,
+ dwarf_version, debug_info_p,
+ do_loc);
+ if (!do_loc)
+ printf ("\n");
return data;
}
-/* Apply addends of RELA relocations. */
+
+/* Process the contents of a .debug_info section. If do_loc is non-zero
+ then we are scanning for location lists and we do not want to display
+ anything to the user. */
static int
-debug_apply_rela_addends (FILE *file,
- Elf_Internal_Shdr *section,
- int reloc_size,
- unsigned char *sec_data,
- unsigned char *start,
- unsigned char *end)
+process_debug_info (Elf_Internal_Shdr *section, unsigned char *start,
+ FILE *file, int do_loc)
{
- Elf_Internal_Shdr *relsec;
-
- if (end - start < reloc_size)
- return 1;
+ unsigned char *end = start + section->sh_size;
+ unsigned char *section_begin;
+ unsigned int unit;
+ unsigned int num_units = 0;
- for (relsec = section_headers;
- relsec < section_headers + elf_header.e_shnum;
- ++relsec)
+ if ((do_loc || do_debug_loc)
+ && num_debug_info_entries == 0)
{
- unsigned long nrelas;
- Elf_Internal_Rela *rela, *rp;
- Elf_Internal_Shdr *symsec;
- Elf_Internal_Sym *symtab;
- Elf_Internal_Sym *sym;
-
- if (relsec->sh_type != SHT_RELA
- || SECTION_HEADER (relsec->sh_info) != section
- || relsec->sh_size == 0)
- continue;
-
- if (!slurp_rela_relocs (file, relsec->sh_offset, relsec->sh_size,
- &rela, &nrelas))
- return 0;
-
- symsec = SECTION_HEADER (relsec->sh_link);
- symtab = GET_ELF_SYMBOLS (file, symsec);
+ unsigned long length;
- for (rp = rela; rp < rela + nrelas; ++rp)
+ /* First scan the section to get the number of comp units. */
+ for (section_begin = start, num_units = 0; section_begin < end;
+ num_units ++)
{
- unsigned char *loc;
-
- if (rp->r_offset >= (bfd_vma) (start - sec_data)
- && rp->r_offset < (bfd_vma) (end - sec_data) - reloc_size)
- loc = sec_data + rp->r_offset;
- else
- continue;
+ /* Read the first 4 bytes. For a 32-bit DWARF section, this
+ will be the length. For a 64-bit DWARF section, it'll be
+ the escape code 0xffffffff followed by an 8 byte length. */
+ length = byte_get (section_begin, 4);
- if (is_32bit_elf)
+ if (length == 0xffffffff)
{
- sym = symtab + ELF32_R_SYM (rp->r_info);
-
- if (ELF32_R_SYM (rp->r_info) != 0
- && ELF32_ST_TYPE (sym->st_info) != STT_SECTION
- /* Relocations against object symbols can happen,
- eg when referencing a global array. For an
- example of this see the _clz.o binary in libgcc.a. */
- && ELF32_ST_TYPE (sym->st_info) != STT_OBJECT)
- {
- warn (_("%s: skipping unexpected symbol type %s in relocation in section .rela%s\n"),
- get_symbol_type (ELF32_ST_TYPE (sym->st_info)),
- SECTION_NAME (section));
- continue;
- }
+ length = byte_get (section_begin + 4, 8);
+ section_begin += length + 12;
}
else
- {
- sym = symtab + ELF64_R_SYM (rp->r_info);
-
- if (ELF64_R_SYM (rp->r_info) != 0
- && ELF64_ST_TYPE (sym->st_info) != STT_SECTION
- && ELF64_ST_TYPE (sym->st_info) != STT_OBJECT)
- {
- warn (_("skipping unexpected symbol type %s in relocation in section .rela.%s\n"),
- get_symbol_type (ELF64_ST_TYPE (sym->st_info)),
- SECTION_NAME (section));
- continue;
- }
- }
+ section_begin += length + 4;
+ }
- byte_put (loc, rp->r_addend, reloc_size);
+ if (num_units == 0)
+ {
+ error (_("No comp units in .debug_info section ?"));
+ return 0;
}
- free (symtab);
- free (rela);
- break;
+ /* Then allocate an array to hold the information. */
+ debug_information = malloc (num_units *
+ sizeof (* debug_information));
+ if (debug_information == NULL)
+ {
+ error (_("Not enough memory for a debug info array of %u entries"),
+ num_units);
+ return 0;
+ }
}
- return 1;
-}
-static int
-display_debug_info (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file)
-{
- unsigned char *end = start + section->sh_size;
- unsigned char *section_begin = start;
-
- printf (_("The section %s contains:\n\n"), SECTION_NAME (section));
+ if (!do_loc)
+ {
+ printf (_("The section %s contains:\n\n"),
+ SECTION_NAME (section));
- load_debug_str (file);
- load_debug_loc (file);
- load_debug_range (file);
+ load_debug_str (file);
+ load_debug_loc (file);
+ load_debug_range (file);
+ }
- while (start < end)
+ for (section_begin = start, unit = 0; start < end; unit++)
{
DWARF2_Internal_CompUnit compunit;
unsigned char *hdrptr;
@@ -9311,14 +8685,27 @@ display_debug_info (Elf_Internal_Shdr *section,
compunit.cu_pointer_size = byte_get (hdrptr, 1);
hdrptr += 1;
+ if ((do_loc || do_debug_loc)
+ && num_debug_info_entries == 0)
+ {
+ debug_information [unit].cu_offset = cu_offset;
+ debug_information [unit].pointer_size
+ = compunit.cu_pointer_size;
+ debug_information [unit].loc_offsets = NULL;
+ debug_information [unit].max_loc_offsets = 0;
+ debug_information [unit].num_loc_offsets = 0;
+ }
tags = hdrptr;
- printf (_(" Compilation Unit @ %lx:\n"), cu_offset);
- printf (_(" Length: %ld\n"), compunit.cu_length);
- printf (_(" Version: %d\n"), compunit.cu_version);
- printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
- printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
+ if (!do_loc)
+ {
+ printf (_(" Compilation Unit @ %lx:\n"), cu_offset);
+ printf (_(" Length: %ld\n"), compunit.cu_length);
+ printf (_(" Version: %d\n"), compunit.cu_version);
+ printf (_(" Abbrev Offset: %ld\n"), compunit.cu_abbrev_offset);
+ printf (_(" Pointer Size: %d\n"), compunit.cu_pointer_size);
+ }
if (compunit.cu_version != 2 && compunit.cu_version != 3)
{
@@ -9384,28 +8771,608 @@ display_debug_info (Elf_Internal_Shdr *section,
return 0;
}
- printf (_(" <%d><%lx>: Abbrev Number: %lu (%s)\n"),
- level,
- (unsigned long) (tags - section_begin - bytes_read),
- abbrev_number,
- get_TAG_name (entry->tag));
-
+ if (!do_loc)
+ printf (_(" <%d><%lx>: Abbrev Number: %lu (%s)\n"),
+ level,
+ (unsigned long) (tags - section_begin
+ - bytes_read),
+ abbrev_number,
+ get_TAG_name (entry->tag));
+
for (attr = entry->first_attr; attr; attr = attr->next)
tags = read_and_display_attr (attr->attribute,
attr->form,
tags, cu_offset,
compunit.cu_pointer_size,
offset_size,
- compunit.cu_version);
+ compunit.cu_version,
+ &debug_information [unit],
+ do_loc);
+
+ if (entry->children)
+ ++level;
+ }
+ }
+
+ /* Set num_debug_info_entries here so that it can be used
+ to check if we need to proecess .debug_loc section. */
+ if ((do_loc || do_debug_loc)
+ && num_debug_info_entries == 0)
+ num_debug_info_entries = num_units;
+
+ if (!do_loc)
+ {
+ free_debug_range ();
+ free_debug_str ();
+ free_debug_loc ();
+
+ printf ("\n");
+ }
+
+ return 1;
+}
+
+/* Retrieve the pointer size associated with the given compilation unit.
+ Optionally the offset of this unit into the .debug_info section is
+ also retutned. If there is no .debug_info section then an error
+ message is issued and 0 is returned. If the requested comp unit has
+ not been defined in the .debug_info section then a warning message
+ is issued and the last know pointer size is returned. This message
+ is only issued once per section dumped per file dumped. */
+
+static unsigned int
+get_pointer_size_and_offset_of_comp_unit (unsigned int comp_unit,
+ const char * section_name,
+ unsigned long * offset_return)
+{
+ unsigned long offset = 0;
+
+ if (num_debug_info_entries == 0)
+ error (_("%s section needs a populated .debug_info section\n"),
+ section_name);
+
+ else if (comp_unit >= num_debug_info_entries)
+ {
+ if (!warned_about_missing_comp_units)
+ {
+ warn (_("%s section has more comp units than .debug_info section\n"),
+ section_name);
+ warn (_("assuming that the pointer size is %d, from the last comp unit in .debug_info\n\n"),
+ last_pointer_size);
+ warned_about_missing_comp_units = TRUE;
+ }
+ }
+ else
+ {
+ last_pointer_size = debug_information [comp_unit].pointer_size;
+ offset = debug_information [comp_unit].cu_offset;
+ }
+
+ if (offset_return != NULL)
+ * offset_return = offset;
+
+ return last_pointer_size;
+}
+
+/* Locate and scan the .debug_info section in the file and record the pointer
+ sizes and offsets for the compilation units in it. Usually an executable
+ will have just one pointer size, but this is not guaranteed, and so we try
+ not to make any assumptions. Returns zero upon failure, or the number of
+ compilation units upon success. */
+
+static unsigned int
+get_debug_info (FILE * file)
+{
+ Elf_Internal_Shdr * section;
+ unsigned char * start;
+ int ret;
+
+ /* Reset the last pointer size so that we can issue correct error
+ messages if we are displaying the contents of more than one section. */
+ last_pointer_size = 0;
+ warned_about_missing_comp_units = FALSE;
+
+ /* If we already have the information there is nothing else to do. */
+ if (num_debug_info_entries > 0)
+ return num_debug_info_entries;
+
+ section = find_section (".debug_info");
+ if (section == NULL)
+ return 0;
+
+ start = get_data (NULL, file, section->sh_offset, section->sh_size,
+ _("extracting information from .debug_info section"));
+ if (start == NULL)
+ return 0;
+
+ ret = process_debug_info (section, start, file, 1);
+ free (start);
+
+ return ret ? num_debug_info_entries : 0;
+}
+
+static int
+display_debug_lines (Elf_Internal_Shdr *section,
+ unsigned char *start, FILE *file)
+{
+ unsigned char *data = start;
+ unsigned char *end = start + section->sh_size;
+ unsigned int comp_unit = 0;
+
+ printf (_("\nDump of debug contents of section %s:\n\n"),
+ SECTION_NAME (section));
+
+ get_debug_info (file);
+
+ while (data < end)
+ {
+ DWARF2_Internal_LineInfo info;
+ unsigned char *standard_opcodes;
+ unsigned char *end_of_sequence;
+ unsigned char *hdrptr;
+ unsigned int pointer_size;
+ int initial_length_size;
+ int offset_size;
+ int i;
+
+ hdrptr = data;
+
+ /* Check the length of the block. */
+ info.li_length = byte_get (hdrptr, 4);
+ hdrptr += 4;
+
+ if (info.li_length == 0xffffffff)
+ {
+ /* This section is 64-bit DWARF 3. */
+ info.li_length = byte_get (hdrptr, 8);
+ hdrptr += 8;
+ offset_size = 8;
+ initial_length_size = 12;
+ }
+ else
+ {
+ offset_size = 4;
+ initial_length_size = 4;
+ }
+
+ if (info.li_length + initial_length_size > section->sh_size)
+ {
+ warn
+ (_("The line info appears to be corrupt - the section is too small\n"));
+ return 0;
+ }
+
+ /* Check its version number. */
+ info.li_version = byte_get (hdrptr, 2);
+ hdrptr += 2;
+ if (info.li_version != 2 && info.li_version != 3)
+ {
+ warn (_("Only DWARF version 2 and 3 line info is currently supported.\n"));
+ return 0;
+ }
+
+ info.li_prologue_length = byte_get (hdrptr, offset_size);
+ hdrptr += offset_size;
+ info.li_min_insn_length = byte_get (hdrptr, 1);
+ hdrptr++;
+ info.li_default_is_stmt = byte_get (hdrptr, 1);
+ hdrptr++;
+ info.li_line_base = byte_get (hdrptr, 1);
+ hdrptr++;
+ info.li_line_range = byte_get (hdrptr, 1);
+ hdrptr++;
+ info.li_opcode_base = byte_get (hdrptr, 1);
+ hdrptr++;
+
+ /* Sign extend the line base field. */
+ info.li_line_base <<= 24;
+ info.li_line_base >>= 24;
+
+ /* Get the pointer size from the comp unit associated
+ with this block of line number information. */
+ pointer_size = get_pointer_size_and_offset_of_comp_unit
+ (comp_unit, ".debug_lines", NULL);
+ comp_unit ++;
+
+ printf (_(" Length: %ld\n"), info.li_length);
+ printf (_(" DWARF Version: %d\n"), info.li_version);
+ printf (_(" Prologue Length: %d\n"), info.li_prologue_length);
+ printf (_(" Minimum Instruction Length: %d\n"), info.li_min_insn_length);
+ printf (_(" Initial value of 'is_stmt': %d\n"), info.li_default_is_stmt);
+ printf (_(" Line Base: %d\n"), info.li_line_base);
+ printf (_(" Line Range: %d\n"), info.li_line_range);
+ printf (_(" Opcode Base: %d\n"), info.li_opcode_base);
+ printf (_(" (Pointer size: %u)\n"), pointer_size);
+
+ end_of_sequence = data + info.li_length + initial_length_size;
+
+ reset_state_machine (info.li_default_is_stmt);
+
+ /* Display the contents of the Opcodes table. */
+ standard_opcodes = hdrptr;
+
+ printf (_("\n Opcodes:\n"));
+
+ for (i = 1; i < info.li_opcode_base; i++)
+ printf (_(" Opcode %d has %d args\n"), i, standard_opcodes[i - 1]);
+
+ /* Display the contents of the Directory table. */
+ data = standard_opcodes + info.li_opcode_base - 1;
+
+ if (*data == 0)
+ printf (_("\n The Directory Table is empty.\n"));
+ else
+ {
+ printf (_("\n The Directory Table:\n"));
+
+ while (*data != 0)
+ {
+ printf (_(" %s\n"), data);
+
+ data += strlen ((char *) data) + 1;
+ }
+ }
+
+ /* Skip the NUL at the end of the table. */
+ data++;
+
+ /* Display the contents of the File Name table. */
+ if (*data == 0)
+ printf (_("\n The File Name Table is empty.\n"));
+ else
+ {
+ printf (_("\n The File Name Table:\n"));
+ printf (_(" Entry\tDir\tTime\tSize\tName\n"));
+
+ while (*data != 0)
+ {
+ unsigned char *name;
+ int bytes_read;
+
+ printf (_(" %d\t"), ++state_machine_regs.last_file_entry);
+ name = data;
+
+ data += strlen ((char *) data) + 1;
+
+ printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
+ data += bytes_read;
+ printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
+ data += bytes_read;
+ printf (_("%lu\t"), read_leb128 (data, & bytes_read, 0));
+ data += bytes_read;
+ printf (_("%s\n"), name);
+ }
+ }
+
+ /* Skip the NUL at the end of the table. */
+ data++;
+
+ /* Now display the statements. */
+ printf (_("\n Line Number Statements:\n"));
+
+ while (data < end_of_sequence)
+ {
+ unsigned char op_code;
+ int adv;
+ int bytes_read;
+
+ op_code = *data++;
+
+ if (op_code >= info.li_opcode_base)
+ {
+ op_code -= info.li_opcode_base;
+ adv = (op_code / info.li_line_range) * info.li_min_insn_length;
+ state_machine_regs.address += adv;
+ printf (_(" Special opcode %d: advance Address by %d to 0x%lx"),
+ op_code, adv, state_machine_regs.address);
+ adv = (op_code % info.li_line_range) + info.li_line_base;
+ state_machine_regs.line += adv;
+ printf (_(" and Line by %d to %d\n"),
+ adv, state_machine_regs.line);
+ }
+ else switch (op_code)
+ {
+ case DW_LNS_extended_op:
+ data += process_extended_line_op (data, info.li_default_is_stmt,
+ pointer_size);
+ break;
+
+ case DW_LNS_copy:
+ printf (_(" Copy\n"));
+ break;
+
+ case DW_LNS_advance_pc:
+ adv = info.li_min_insn_length * read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ state_machine_regs.address += adv;
+ printf (_(" Advance PC by %d to %lx\n"), adv,
+ state_machine_regs.address);
+ break;
+
+ case DW_LNS_advance_line:
+ adv = read_leb128 (data, & bytes_read, 1);
+ data += bytes_read;
+ state_machine_regs.line += adv;
+ printf (_(" Advance Line by %d to %d\n"), adv,
+ state_machine_regs.line);
+ break;
+
+ case DW_LNS_set_file:
+ adv = read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ printf (_(" Set File Name to entry %d in the File Name Table\n"),
+ adv);
+ state_machine_regs.file = adv;
+ break;
+
+ case DW_LNS_set_column:
+ adv = read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ printf (_(" Set column to %d\n"), adv);
+ state_machine_regs.column = adv;
+ break;
+
+ case DW_LNS_negate_stmt:
+ adv = state_machine_regs.is_stmt;
+ adv = ! adv;
+ printf (_(" Set is_stmt to %d\n"), adv);
+ state_machine_regs.is_stmt = adv;
+ break;
+
+ case DW_LNS_set_basic_block:
+ printf (_(" Set basic block\n"));
+ state_machine_regs.basic_block = 1;
+ break;
+
+ case DW_LNS_const_add_pc:
+ adv = (((255 - info.li_opcode_base) / info.li_line_range)
+ * info.li_min_insn_length);
+ state_machine_regs.address += adv;
+ printf (_(" Advance PC by constant %d to 0x%lx\n"), adv,
+ state_machine_regs.address);
+ break;
+
+ case DW_LNS_fixed_advance_pc:
+ adv = byte_get (data, 2);
+ data += 2;
+ state_machine_regs.address += adv;
+ printf (_(" Advance PC by fixed size amount %d to 0x%lx\n"),
+ adv, state_machine_regs.address);
+ break;
+
+ case DW_LNS_set_prologue_end:
+ printf (_(" Set prologue_end to true\n"));
+ break;
- if (entry->children)
- ++level;
+ case DW_LNS_set_epilogue_begin:
+ printf (_(" Set epilogue_begin to true\n"));
+ break;
+
+ case DW_LNS_set_isa:
+ adv = read_leb128 (data, & bytes_read, 0);
+ data += bytes_read;
+ printf (_(" Set ISA to %d\n"), adv);
+ break;
+
+ default:
+ printf (_(" Unknown opcode %d with operands: "), op_code);
+
+ for (i = standard_opcodes[op_code - 1]; i > 0 ; --i)
+ {
+ printf ("0x%lx%s", read_leb128 (data, &bytes_read, 0),
+ i == 1 ? "" : ", ");
+ data += bytes_read;
+ }
+ putchar ('\n');
+ break;
+ }
}
+ putchar ('\n');
}
- free_debug_range ();
- free_debug_str ();
- free_debug_loc ();
+ return 1;
+}
+
+static int
+display_debug_pubnames (Elf_Internal_Shdr *section,
+ unsigned char *start,
+ FILE *file ATTRIBUTE_UNUSED)
+{
+ DWARF2_Internal_PubNames pubnames;
+ unsigned char *end;
+
+ end = start + section->sh_size;
+
+ printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
+
+ while (start < end)
+ {
+ unsigned char *data;
+ unsigned long offset;
+ int offset_size, initial_length_size;
+
+ data = start;
+
+ pubnames.pn_length = byte_get (data, 4);
+ data += 4;
+ if (pubnames.pn_length == 0xffffffff)
+ {
+ pubnames.pn_length = byte_get (data, 8);
+ data += 8;
+ offset_size = 8;
+ initial_length_size = 12;
+ }
+ else
+ {
+ offset_size = 4;
+ initial_length_size = 4;
+ }
+
+ pubnames.pn_version = byte_get (data, 2);
+ data += 2;
+ pubnames.pn_offset = byte_get (data, offset_size);
+ data += offset_size;
+ pubnames.pn_size = byte_get (data, offset_size);
+ data += offset_size;
+
+ start += pubnames.pn_length + initial_length_size;
+
+ if (pubnames.pn_version != 2 && pubnames.pn_version != 3)
+ {
+ static int warned = 0;
+
+ if (! warned)
+ {
+ warn (_("Only DWARF 2 and 3 pubnames are currently supported\n"));
+ warned = 1;
+ }
+
+ continue;
+ }
+
+ printf (_(" Length: %ld\n"),
+ pubnames.pn_length);
+ printf (_(" Version: %d\n"),
+ pubnames.pn_version);
+ printf (_(" Offset into .debug_info section: %ld\n"),
+ pubnames.pn_offset);
+ printf (_(" Size of area in .debug_info section: %ld\n"),
+ pubnames.pn_size);
+
+ printf (_("\n Offset\tName\n"));
+
+ do
+ {
+ offset = byte_get (data, offset_size);
+
+ if (offset != 0)
+ {
+ data += offset_size;
+ printf (" %-6ld\t\t%s\n", offset, data);
+ data += strlen ((char *) data) + 1;
+ }
+ }
+ while (offset != 0);
+ }
+
+ printf ("\n");
+ return 1;
+}
+
+static int
+display_debug_macinfo (Elf_Internal_Shdr *section,
+ unsigned char *start,
+ FILE *file ATTRIBUTE_UNUSED)
+{
+ unsigned char *end = start + section->sh_size;
+ unsigned char *curr = start;
+ unsigned int bytes_read;
+ enum dwarf_macinfo_record_type op;
+
+ printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
+
+ while (curr < end)
+ {
+ unsigned int lineno;
+ const char *string;
+
+ op = *curr;
+ curr++;
+
+ switch (op)
+ {
+ case DW_MACINFO_start_file:
+ {
+ unsigned int filenum;
+
+ lineno = read_leb128 (curr, & bytes_read, 0);
+ curr += bytes_read;
+ filenum = read_leb128 (curr, & bytes_read, 0);
+ curr += bytes_read;
+
+ printf (_(" DW_MACINFO_start_file - lineno: %d filenum: %d\n"),
+ lineno, filenum);
+ }
+ break;
+
+ case DW_MACINFO_end_file:
+ printf (_(" DW_MACINFO_end_file\n"));
+ break;
+
+ case DW_MACINFO_define:
+ lineno = read_leb128 (curr, & bytes_read, 0);
+ curr += bytes_read;
+ string = curr;
+ curr += strlen (string) + 1;
+ printf (_(" DW_MACINFO_define - lineno : %d macro : %s\n"),
+ lineno, string);
+ break;
+
+ case DW_MACINFO_undef:
+ lineno = read_leb128 (curr, & bytes_read, 0);
+ curr += bytes_read;
+ string = curr;
+ curr += strlen (string) + 1;
+ printf (_(" DW_MACINFO_undef - lineno : %d macro : %s\n"),
+ lineno, string);
+ break;
+
+ case DW_MACINFO_vendor_ext:
+ {
+ unsigned int constant;
+
+ constant = read_leb128 (curr, & bytes_read, 0);
+ curr += bytes_read;
+ string = curr;
+ curr += strlen (string) + 1;
+ printf (_(" DW_MACINFO_vendor_ext - constant : %d string : %s\n"),
+ constant, string);
+ }
+ break;
+ }
+ }
+
+ return 1;
+}
+
+
+static int
+display_debug_abbrev (Elf_Internal_Shdr *section,
+ unsigned char *start,
+ FILE *file ATTRIBUTE_UNUSED)
+{
+ abbrev_entry *entry;
+ unsigned char *end = start + section->sh_size;
+
+ printf (_("Contents of the %s section:\n\n"), SECTION_NAME (section));
+
+ do
+ {
+ start = process_abbrev_section (start, end);
+
+ if (first_abbrev == NULL)
+ continue;
+
+ printf (_(" Number TAG\n"));
+
+ for (entry = first_abbrev; entry; entry = entry->next)
+ {
+ abbrev_attr *attr;
+
+ printf (_(" %ld %s [%s]\n"),
+ entry->entry,
+ get_TAG_name (entry->tag),
+ entry->children ? _("has children") : _("no children"));
+
+ for (attr = entry->first_attr; attr; attr = attr->next)
+ printf (_(" %-18s %s\n"),
+ get_AT_name (attr->attribute),
+ get_FORM_name (attr->form));
+ }
+
+ free_abbrevs ();
+ }
+ while (start);
printf ("\n");
@@ -9413,6 +9380,226 @@ display_debug_info (Elf_Internal_Shdr *section,
}
static int
+display_debug_loc (Elf_Internal_Shdr *section,
+ unsigned char *start, FILE *file)
+{
+ unsigned char *section_end;
+ unsigned long bytes;
+ unsigned char *section_begin = start;
+ bfd_vma addr;
+ unsigned int num_loc_list = 0;
+ unsigned long last_offset = 0;
+ unsigned int first = 0;
+ unsigned int i;
+ unsigned int j;
+ int seen_first_offset = 0;
+ int use_debug_info = 1;
+ unsigned char *next;
+
+ addr = section->sh_addr;
+ bytes = section->sh_size;
+ section_end = start + bytes;
+
+ if (bytes == 0)
+ {
+ printf (_("\nThe .debug_loc section is empty.\n"));
+ return 0;
+ }
+
+ get_debug_info (file);
+
+ /* Check the order of location list in .debug_info section. If
+ offsets of location lists are in the ascending order, we can
+ use `debug_information' directly. */
+ for (i = 0; i < num_debug_info_entries; i++)
+ {
+ unsigned int num;
+
+ num = debug_information [i].num_loc_offsets;
+ num_loc_list += num;
+
+ /* Check if we can use `debug_information' directly. */
+ if (use_debug_info && num != 0)
+ {
+ if (!seen_first_offset)
+ {
+ /* This is the first location list. */
+ last_offset = debug_information [i].loc_offsets [0];
+ first = i;
+ seen_first_offset = 1;
+ j = 1;
+ }
+ else
+ j = 0;
+
+ for (; j < num; j++)
+ {
+ if (last_offset >
+ debug_information [i].loc_offsets [j])
+ {
+ use_debug_info = 0;
+ break;
+ }
+ last_offset = debug_information [i].loc_offsets [j];
+ }
+ }
+ }
+
+ if (!use_debug_info)
+ /* FIXME: Should we handle this case? */
+ error (_("Location lists in .debug_info section aren't in ascending order!\n"));
+
+ if (!seen_first_offset)
+ error (_("No location lists in .debug_info section!\n"));
+
+ if (debug_information [first].loc_offsets [0] != 0)
+ warn (_("Location lists in .debug_loc section start at 0x%lx\n"),
+ debug_information [first].loc_offsets [0]);
+
+ printf (_("Contents of the .debug_loc section:\n\n"));
+ printf (_(" Offset Begin End Expression\n"));
+
+ seen_first_offset = 0;
+ for (i = first; i < num_debug_info_entries; i++)
+ {
+ unsigned long begin;
+ unsigned long end;
+ unsigned short length;
+ unsigned long offset;
+ unsigned int pointer_size;
+ unsigned long cu_offset;
+
+ pointer_size = debug_information [i].pointer_size;
+ cu_offset = debug_information [i].cu_offset;
+
+ for (j = 0; j < debug_information [i].num_loc_offsets; j++)
+ {
+ offset = debug_information [i].loc_offsets [j];
+ next = section_begin + offset;
+
+ if (!seen_first_offset)
+ seen_first_offset = 1;
+ else
+ {
+ if (start < next)
+ warn (_("There is a hole [0x%lx - 0x%lx] in .debug_loc section.\n"),
+ start, next);
+ else if (start > next)
+ warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
+ start, next);
+ }
+ start = next;
+
+ while (1)
+ {
+ begin = byte_get (start, pointer_size);
+ start += pointer_size;
+ end = byte_get (start, pointer_size);
+ start += pointer_size;
+
+ if (begin == 0 && end == 0)
+ break;
+
+ /* For now, skip any base address specifiers. */
+ if (begin == 0xffffffff)
+ continue;
+
+ begin += addr;
+ end += addr;
+
+ length = byte_get (start, 2);
+ start += 2;
+
+ printf (" %8.8lx %8.8lx %8.8lx (",
+ offset, begin, end);
+ decode_location_expression (start, pointer_size, length,
+ cu_offset);
+ printf (")\n");
+
+ if (begin >= end)
+ warn ("Bad location list at %8.8lx from %8.8lx to %8.8lx\n",
+ offset, begin, end);
+
+ start += length;
+ }
+
+ if (j < debug_information [i].num_loc_offsets -1)
+ printf (_(" <End of list>"));
+ printf ("\n");
+ }
+ }
+ return 1;
+}
+
+static int
+display_debug_str (Elf_Internal_Shdr *section,
+ unsigned char *start,
+ FILE *file ATTRIBUTE_UNUSED)
+{
+ unsigned long bytes;
+ bfd_vma addr;
+
+ addr = section->sh_addr;
+ bytes = section->sh_size;
+
+ if (bytes == 0)
+ {
+ printf (_("\nThe .debug_str section is empty.\n"));
+ return 0;
+ }
+
+ printf (_("Contents of the .debug_str section:\n\n"));
+
+ while (bytes)
+ {
+ int j;
+ int k;
+ int lbytes;
+
+ lbytes = (bytes > 16 ? 16 : bytes);
+
+ printf (" 0x%8.8lx ", (unsigned long) addr);
+
+ for (j = 0; j < 16; j++)
+ {
+ if (j < lbytes)
+ printf ("%2.2x", start[j]);
+ else
+ printf (" ");
+
+ if ((j & 3) == 3)
+ printf (" ");
+ }
+
+ for (j = 0; j < lbytes; j++)
+ {
+ k = start[j];
+ if (k >= ' ' && k < 0x80)
+ printf ("%c", k);
+ else
+ printf (".");
+ }
+
+ putchar ('\n');
+
+ start += lbytes;
+ addr += lbytes;
+ bytes -= lbytes;
+ }
+
+ return 1;
+}
+
+
+static int
+display_debug_info (Elf_Internal_Shdr * section,
+ unsigned char * start, FILE * file)
+{
+ return process_debug_info (section, start, file, 0);
+}
+
+
+static int
display_debug_aranges (Elf_Internal_Shdr *section,
unsigned char *start,
FILE *file ATTRIBUTE_UNUSED)
@@ -9984,6 +10171,7 @@ display_debug_frames (Elf_Internal_Shdr *section,
if (! do_debug_frames_interp && augmentation_data_len)
{
unsigned long i;
+
printf (" Augmentation data: ");
for (i = 0; i < augmentation_data_len; ++i)
printf (" %02x", augmentation_data[i]);
@@ -10314,7 +10502,7 @@ display_debug_frames (Elf_Internal_Shdr *section,
if (! do_debug_frames_interp)
{
printf (" DW_CFA_def_cfa_expression (");
- decode_location_expression (start, addr_size, ul);
+ decode_location_expression (start, addr_size, ul, 0);
printf (")\n");
}
fc->cfa_exp = 1;
@@ -10327,7 +10515,7 @@ display_debug_frames (Elf_Internal_Shdr *section,
if (! do_debug_frames_interp)
{
printf (" DW_CFA_expression: r%ld (", reg);
- decode_location_expression (start, addr_size, ul);
+ decode_location_expression (start, addr_size, ul, 0);
printf (")\n");
}
fc->col_type[reg] = DW_CFA_expression;
@@ -11559,6 +11747,9 @@ process_object (char *file_name, FILE *file)
if (debug_information)
{
+ for (i = 0; i < num_debug_info_entries; i++)
+ if (debug_information [i].loc_offsets != NULL)
+ free (debug_information [i].loc_offsets);
free (debug_information);
debug_information = NULL;
num_debug_info_entries = 0;