-read_and_display_attr (unsigned long attribute,
- unsigned long form,
- unsigned char *data,
- unsigned long cu_offset,
- unsigned long pointer_size,
- unsigned long offset_size,
- int dwarf_version,
- debug_info *debug_info_p,
- int do_loc)
-{
- 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, debug_info_p,
- do_loc);
- if (!do_loc)
- printf ("\n");
- return data;
-}
-
-
-/* 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
-process_debug_info (Elf_Internal_Shdr *section, unsigned char *start,
- FILE *file, int do_loc)
-{
- unsigned char *end = start + section->sh_size;
- unsigned char *section_begin;
- unsigned int unit;
- unsigned int num_units = 0;
-
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
- {
- unsigned long length;
-
- /* First scan the section to get the number of comp units. */
- for (section_begin = start, num_units = 0; section_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 (section_begin, 4);
-
- if (length == 0xffffffff)
- {
- length = byte_get (section_begin + 4, 8);
- section_begin += length + 12;
- }
- else
- section_begin += length + 4;
- }
-
- if (num_units == 0)
- {
- error (_("No comp units in .debug_info section ?"));
- return 0;
- }
-
- /* Then allocate an array to hold the information. */
- debug_information = cmalloc (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;
- }
- }
-
- 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_abbrev (file);
- if (debug_abbrev_contents == NULL)
- {
- warn (_("Unable to locate .debug_abbrev section!\n"));
- return 0;
- }
-
- for (section_begin = start, unit = 0; start < end; unit++)
- {
- DWARF2_Internal_CompUnit compunit;
- unsigned char *hdrptr;
- unsigned char *cu_abbrev_offset_ptr;
- unsigned char *tags;
- int level;
- unsigned long cu_offset;
- int offset_size;
- int initial_length_size;
-
- hdrptr = start;
-
- compunit.cu_length = byte_get (hdrptr, 4);
- hdrptr += 4;
-
- if (compunit.cu_length == 0xffffffff)
- {
- compunit.cu_length = byte_get (hdrptr, 8);
- hdrptr += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
-
- compunit.cu_version = byte_get (hdrptr, 2);
- hdrptr += 2;
-
- cu_offset = start - section_begin;
- start += compunit.cu_length + initial_length_size;
-
- if (elf_header.e_type == ET_REL
- && !debug_apply_rela_addends (file, section, offset_size,
- section_begin, hdrptr, start))
- return 0;
-
- cu_abbrev_offset_ptr = hdrptr;
- compunit.cu_abbrev_offset = byte_get (hdrptr, offset_size);
- hdrptr += offset_size;
-
- compunit.cu_pointer_size = byte_get (hdrptr, 1);
- hdrptr += 1;
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && num_debug_info_entries == 0)
- {
- debug_information [unit].cu_offset = cu_offset;
- debug_information [unit].pointer_size
- = compunit.cu_pointer_size;
- debug_information [unit].base_address = 0;
- debug_information [unit].loc_offsets = NULL;
- debug_information [unit].have_frame_base = NULL;
- debug_information [unit].max_loc_offsets = 0;
- debug_information [unit].num_loc_offsets = 0;
- debug_information [unit].range_lists = NULL;
- debug_information [unit].max_range_lists= 0;
- debug_information [unit].num_range_lists = 0;
- }
-
- tags = hdrptr;
-
- if (!do_loc)
- {
- printf (_(" Compilation Unit @ offset 0x%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)
- {
- warn (_("Only version 2 and 3 DWARF debug information is currently supported.\n"));
- continue;
- }
-
- free_abbrevs ();
-
- /* Process the abbrevs used by this compilation unit. */
- process_abbrev_section
- (debug_abbrev_contents + compunit.cu_abbrev_offset,
- debug_abbrev_contents + debug_abbrev_size);
-
- level = 0;
- while (tags < start)
- {
- unsigned int bytes_read;
- unsigned long abbrev_number;
- abbrev_entry *entry;
- abbrev_attr *attr;
-
- abbrev_number = read_leb128 (tags, & bytes_read, 0);
- tags += bytes_read;
-
- /* A null DIE marks the end of a list of children. */
- if (abbrev_number == 0)
- {
- --level;
- continue;
- }
-
- /* Scan through the abbreviation list until we reach the
- correct entry. */
- for (entry = first_abbrev;
- entry && entry->entry != abbrev_number;
- entry = entry->next)
- continue;
-
- if (entry == NULL)
- {
- warn (_("Unable to locate entry %lu in the abbreviation table\n"),
- abbrev_number);
- return 0;
- }
-
- 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));
-
- switch (entry->tag)
- {
- default:
- need_base_address = 0;
- break;
- case DW_TAG_compile_unit:
- need_base_address = 1;
- break;
- case DW_TAG_entry_point:
- case DW_TAG_inlined_subroutine:
- case DW_TAG_subprogram:
- need_base_address = 0;
- /* Assuming that there is no DW_AT_frame_base. */
- have_frame_base = 0;
- break;
- }
-
- 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,
- &debug_information [unit],
- do_loc);
-
- if (entry->children)
- ++level;
- }
- }
-
- free_debug_abbrev ();
-
- /* Set num_debug_info_entries here so that it can be used to check if
- we need to process .debug_loc and .debug_ranges sections. */
- if ((do_loc || do_debug_loc || do_debug_ranges)
- && 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, 1, 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_line", 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)%s\n"),
- pointer_size,
- warned_about_missing_comp_units ? " [assumed]" : "" );
-
- 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;
- unsigned 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;
- unsigned 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:
- if (pointer_size == 0)
- {
- warn (_("Extend line ops need a valid pointer size, guessing at 4\n"));
- pointer_size = 4;
- }
-
- 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);
-
- 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');
- }
-
- 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 = (char *) 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 = (char *) 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 = (char *) 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");
-
- return 1;
-}
-
-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;
- 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;
-
- 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;
- unsigned long base_address;
- int need_frame_base;
- int has_frame_base;
-
- 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++)
- {
- has_frame_base = debug_information [i].have_frame_base [j];
- offset = debug_information [i].loc_offsets [j];
- next = section_begin + offset;
- base_address = debug_information [i].base_address;
-
- 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"),
- (long)(start - section_begin), (long)(next - section_begin));
- else if (start > next)
- warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
- (long)(start - section_begin), (long)(next - section_begin));
- }
- start = next;
-
- if (offset >= bytes)
- {
- warn (_("Offset 0x%lx is bigger than .debug_loc section size.\n"),
- offset);
- continue;
- }
-
- while (1)
- {
- if (start + 2 * pointer_size > section_end)
- {
- warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
- offset);
- break;
- }
-
- begin = byte_get (start, pointer_size);
- start += pointer_size;
- end = byte_get (start, pointer_size);
- start += pointer_size;
-
- if (begin == 0 && end == 0)
- {
- printf (_(" %8.8lx <End of list>\n"), offset);
- break;
- }
-
- /* Check base address specifiers. */
- if (begin == -1UL && end != -1UL)
- {
- base_address = end;
- printf (_(" %8.8lx %8.8lx %8.8lx (base address)\n"),
- offset, begin, end);
- continue;
- }
-
- if (start + 2 > section_end)
- {
- warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
- offset);
- break;
- }
-
- length = byte_get (start, 2);
- start += 2;
-
- if (start + length > section_end)
- {
- warn (_("Location list starting at offset 0x%lx is not terminated.\n"),
- offset);
- break;
- }
-
- printf (" %8.8lx %8.8lx %8.8lx (",
- offset, begin + base_address, end + base_address);
- need_frame_base = decode_location_expression (start,
- pointer_size,
- length,
- cu_offset);
- putchar (')');
-
- if (need_frame_base && !has_frame_base)
- printf (_(" [without DW_AT_frame_base]"));
-
- if (begin == end)
- fputs (_(" (start == end)"), stdout);
- else if (begin > end)
- fputs (_(" (start > end)"), stdout);
-
- putchar ('\n');
-
- start += length;
- }
- }
- }
- 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;
- }
-
- putchar ('\n');
-
- 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)
-{
- unsigned char *end = start + section->sh_size;
-
- printf (_("The section %s contains:\n\n"), SECTION_NAME (section));
-
- while (start < end)
- {
- unsigned char *hdrptr;
- DWARF2_Internal_ARange arange;
- unsigned char *ranges;
- unsigned long length;
- unsigned long address;
- int excess;
- int offset_size;
- int initial_length_size;
-
- hdrptr = start;
-
- arange.ar_length = byte_get (hdrptr, 4);
- hdrptr += 4;
-
- if (arange.ar_length == 0xffffffff)
- {
- arange.ar_length = byte_get (hdrptr, 8);
- hdrptr += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
-
- arange.ar_version = byte_get (hdrptr, 2);
- hdrptr += 2;
-
- arange.ar_info_offset = byte_get (hdrptr, offset_size);
- hdrptr += offset_size;
-
- arange.ar_pointer_size = byte_get (hdrptr, 1);
- hdrptr += 1;
-
- arange.ar_segment_size = byte_get (hdrptr, 1);
- hdrptr += 1;
-
- if (arange.ar_version != 2 && arange.ar_version != 3)
- {
- warn (_("Only DWARF 2 and 3 aranges are currently supported.\n"));
- break;
- }
-
- printf (_(" Length: %ld\n"), arange.ar_length);
- printf (_(" Version: %d\n"), arange.ar_version);
- printf (_(" Offset into .debug_info: %lx\n"), arange.ar_info_offset);
- printf (_(" Pointer Size: %d\n"), arange.ar_pointer_size);
- printf (_(" Segment Size: %d\n"), arange.ar_segment_size);
-
- printf (_("\n Address Length\n"));
-
- ranges = hdrptr;
-
- /* Must pad to an alignment boundary that is twice the pointer size. */
- excess = (hdrptr - start) % (2 * arange.ar_pointer_size);
- if (excess)
- ranges += (2 * arange.ar_pointer_size) - excess;
-
- for (;;)
- {
- address = byte_get (ranges, arange.ar_pointer_size);
-
- ranges += arange.ar_pointer_size;
-
- length = byte_get (ranges, arange.ar_pointer_size);
-
- ranges += arange.ar_pointer_size;
-
- /* A pair of zeros marks the end of the list. */
- if (address == 0 && length == 0)
- break;
-
- printf (" %8.8lx %lu\n", address, length);
- }
-
- start += arange.ar_length + initial_length_size;
- }
-
- printf ("\n");
-
- return 1;
-}
-
-static int
-display_debug_ranges (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
-{
- unsigned char *section_end;
- unsigned long bytes;
- unsigned char *section_begin = start;
- unsigned int num_range_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;
-
- bytes = section->sh_size;
- section_end = start + bytes;
-
- if (bytes == 0)
- {
- printf (_("\nThe .debug_ranges section is empty.\n"));
- return 0;
- }
-
- get_debug_info (file);
-
- /* Check the order of range list in .debug_info section. If
- offsets of range 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_range_lists;
- num_range_list += num;
-
- /* Check if we can use `debug_information' directly. */
- if (use_debug_info && num != 0)
- {
- if (!seen_first_offset)
- {
- /* This is the first range list. */
- last_offset = debug_information [i].range_lists [0];
- first = i;
- seen_first_offset = 1;
- j = 1;
- }
- else
- j = 0;
-
- for (; j < num; j++)
- {
- if (last_offset >
- debug_information [i].range_lists [j])
- {
- use_debug_info = 0;
- break;
- }
- last_offset = debug_information [i].range_lists [j];
- }
- }
- }
-
- if (!use_debug_info)
- /* FIXME: Should we handle this case? */
- error (_("Range lists in .debug_info section aren't in ascending order!\n"));
-
- if (!seen_first_offset)
- error (_("No range lists in .debug_info section!\n"));
-
- if (debug_information [first].range_lists [0] != 0)
- warn (_("Range lists in .debug_ranges section start at 0x%lx\n"),
- debug_information [first].range_lists [0]);
-
- printf (_("Contents of the .debug_ranges section:\n\n"));
- printf (_(" Offset Begin End\n"));
-
- seen_first_offset = 0;
- for (i = first; i < num_debug_info_entries; i++)
- {
- unsigned long begin;
- unsigned long end;
- unsigned long offset;
- unsigned int pointer_size;
- unsigned long base_address;
-
- pointer_size = debug_information [i].pointer_size;
-
- for (j = 0; j < debug_information [i].num_range_lists; j++)
- {
- offset = debug_information [i].range_lists [j];
- next = section_begin + offset;
- base_address = debug_information [i].base_address;
-
- if (!seen_first_offset)
- seen_first_offset = 1;
- else
- {
- if (start < next)
- warn (_("There is a hole [0x%lx - 0x%lx] in .debug_ranges section.\n"),
- (long)(start - section_begin), (long)(next - section_begin));
- else if (start > next)
- warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_ranges section.\n"),
- (long)(start - section_begin), (long)(next - section_begin));
- }
- 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)
- {
- printf (_(" %8.8lx <End of list>\n"), offset);
- break;
- }
-
- /* Check base address specifiers. */
- if (begin == -1UL && end != -1UL)
- {
- base_address = end;
- printf (" %8.8lx %8.8lx %8.8lx (base address)\n",
- offset, begin, end);
- continue;
- }
-
- printf (" %8.8lx %8.8lx %8.8lx",
- offset, begin + base_address, end + base_address);
-
- if (begin == end)
- fputs (_(" (start == end)"), stdout);
- else if (begin > end)
- fputs (_(" (start > end)"), stdout);
-
- putchar ('\n');
- }
- }
- }
- putchar ('\n');
- return 1;
-}
-
-typedef struct Frame_Chunk
-{
- struct Frame_Chunk *next;
- unsigned char *chunk_start;
- int ncols;
- /* DW_CFA_{undefined,same_value,offset,register,unreferenced} */
- short int *col_type;
- int *col_offset;
- char *augmentation;
- unsigned int code_factor;
- int data_factor;
- unsigned long pc_begin;
- unsigned long pc_range;
- int cfa_reg;
- int cfa_offset;
- int ra;
- unsigned char fde_encoding;
- unsigned char cfa_exp;
-}
-Frame_Chunk;
-
-/* A marker for a col_type that means this column was never referenced
- in the frame info. */
-#define DW_CFA_unreferenced (-1)
-
-static void
-frame_need_space (Frame_Chunk *fc, int reg)
-{
- int prev = fc->ncols;
-
- if (reg < fc->ncols)
- return;
-
- fc->ncols = reg + 1;
- fc->col_type = xcrealloc (fc->col_type, fc->ncols, sizeof (short int));
- fc->col_offset = xcrealloc (fc->col_offset, fc->ncols, sizeof (int));
-
- while (prev < fc->ncols)
- {
- fc->col_type[prev] = DW_CFA_unreferenced;
- fc->col_offset[prev] = 0;
- prev++;
- }
-}
-
-static void
-frame_display_row (Frame_Chunk *fc, int *need_col_headers, int *max_regs)
-{
- int r;
- char tmp[100];
-
- if (*max_regs < fc->ncols)
- *max_regs = fc->ncols;
-
- if (*need_col_headers)
- {
- *need_col_headers = 0;
-
- printf (" LOC CFA ");
-
- for (r = 0; r < *max_regs; r++)
- if (fc->col_type[r] != DW_CFA_unreferenced)
- {
- if (r == fc->ra)
- printf ("ra ");
- else
- printf ("r%-4d", r);
- }
-
- printf ("\n");
- }
-
- printf ("%08lx ", fc->pc_begin);
- if (fc->cfa_exp)
- strcpy (tmp, "exp");
- else
- sprintf (tmp, "r%d%+d", fc->cfa_reg, fc->cfa_offset);
- printf ("%-8s ", tmp);
-
- for (r = 0; r < fc->ncols; r++)
- {
- if (fc->col_type[r] != DW_CFA_unreferenced)
- {
- switch (fc->col_type[r])
- {
- case DW_CFA_undefined:
- strcpy (tmp, "u");
- break;
- case DW_CFA_same_value:
- strcpy (tmp, "s");
- break;
- case DW_CFA_offset:
- sprintf (tmp, "c%+d", fc->col_offset[r]);
- break;
- case DW_CFA_register:
- sprintf (tmp, "r%d", fc->col_offset[r]);
- break;
- case DW_CFA_expression:
- strcpy (tmp, "exp");
- break;
- default:
- strcpy (tmp, "n/a");
- break;
- }
- printf ("%-5s", tmp);
- }
- }
- printf ("\n");
-}
-
-static int
-size_of_encoded_value (int encoding)
-{
- switch (encoding & 0x7)
- {
- default: /* ??? */
- case 0: return eh_addr_size;
- case 2: return 2;
- case 3: return 4;
- case 4: return 8;
- }
-}
-
-static bfd_vma
-get_encoded_value (unsigned char *data, int encoding)
-{
- int size = size_of_encoded_value (encoding);
- if (encoding & DW_EH_PE_signed)
- return byte_get_signed (data, size);
- else
- return byte_get (data, size);
-}
-
-#define GET(N) byte_get (start, N); start += N
-#define LEB() read_leb128 (start, & length_return, 0); start += length_return
-#define SLEB() read_leb128 (start, & length_return, 1); start += length_return
-
-static int
-display_debug_frames (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
-{
- unsigned char *end = start + section->sh_size;
- unsigned char *section_start = start;
- Frame_Chunk *chunks = 0;
- Frame_Chunk *remembered_state = 0;
- Frame_Chunk *rs;
- int is_eh = streq (SECTION_NAME (section), ".eh_frame");
- unsigned int length_return;
- int max_regs = 0;
-
- printf (_("The section %s contains:\n"), SECTION_NAME (section));
-
- while (start < end)
- {
- unsigned char *saved_start;
- unsigned char *block_end;
- unsigned long length;
- unsigned long cie_id;
- Frame_Chunk *fc;
- Frame_Chunk *cie;
- int need_col_headers = 1;
- unsigned char *augmentation_data = NULL;
- unsigned long augmentation_data_len = 0;
- int encoded_ptr_size = eh_addr_size;
- int offset_size;
- int initial_length_size;
-
- saved_start = start;
- length = byte_get (start, 4); start += 4;
-
- if (length == 0)
- {
- printf ("\n%08lx ZERO terminator\n\n",
- (unsigned long)(saved_start - section_start));
- return 1;
- }
-
- if (length == 0xffffffff)
- {
- length = byte_get (start, 8);
- start += 8;
- offset_size = 8;
- initial_length_size = 12;
- }
- else
- {
- offset_size = 4;
- initial_length_size = 4;
- }
-
- block_end = saved_start + length + initial_length_size;
- cie_id = byte_get (start, offset_size); start += offset_size;
-
- if (elf_header.e_type == ET_REL
- && !debug_apply_rela_addends (file, section, offset_size,
- section_start, start, block_end))
- return 0;
-
- if (is_eh ? (cie_id == 0) : (cie_id == DW_CIE_ID))
- {
- int version;
-
- fc = xmalloc (sizeof (Frame_Chunk));
- memset (fc, 0, sizeof (Frame_Chunk));
-
- fc->next = chunks;
- chunks = fc;
- fc->chunk_start = saved_start;
- fc->ncols = 0;
- fc->col_type = xmalloc (sizeof (short int));
- fc->col_offset = xmalloc (sizeof (int));
- frame_need_space (fc, max_regs-1);
-
- version = *start++;
-
- fc->augmentation = (char *) start;
- start = (unsigned char *) strchr ((char *) start, '\0') + 1;
-
- if (fc->augmentation[0] == 'z')
- {
- fc->code_factor = LEB ();
- fc->data_factor = SLEB ();
- if (version == 1)
- {
- fc->ra = GET (1);
- }
- else
- {
- fc->ra = LEB ();
- }
- augmentation_data_len = LEB ();
- augmentation_data = start;
- start += augmentation_data_len;
- }
- else if (streq (fc->augmentation, "eh"))
- {
- start += eh_addr_size;
- fc->code_factor = LEB ();
- fc->data_factor = SLEB ();
- if (version == 1)
- {
- fc->ra = GET (1);
- }
- else
- {
- fc->ra = LEB ();
- }
- }
- else
- {
- fc->code_factor = LEB ();
- fc->data_factor = SLEB ();
- if (version == 1)
- {
- fc->ra = GET (1);
- }
- else
- {
- fc->ra = LEB ();
- }
- }
- cie = fc;
-
- if (do_debug_frames_interp)
- printf ("\n%08lx %08lx %08lx CIE \"%s\" cf=%d df=%d ra=%d\n",
- (unsigned long)(saved_start - section_start), length, cie_id,
- fc->augmentation, fc->code_factor, fc->data_factor,
- fc->ra);
- else
- {
- printf ("\n%08lx %08lx %08lx CIE\n",
- (unsigned long)(saved_start - section_start), length, cie_id);
- printf (" Version: %d\n", version);
- printf (" Augmentation: \"%s\"\n", fc->augmentation);
- printf (" Code alignment factor: %u\n", fc->code_factor);
- printf (" Data alignment factor: %d\n", fc->data_factor);
- printf (" Return address column: %d\n", fc->ra);
-
- if (augmentation_data_len)
- {
- unsigned long i;
- printf (" Augmentation data: ");
- for (i = 0; i < augmentation_data_len; ++i)
- printf (" %02x", augmentation_data[i]);
- putchar ('\n');
- }
- putchar ('\n');
- }
-
- if (augmentation_data_len)
- {
- unsigned char *p, *q;
- p = (unsigned char *) fc->augmentation + 1;
- q = augmentation_data;
-
- while (1)
- {
- if (*p == 'L')
- q++;
- else if (*p == 'P')
- q += 1 + size_of_encoded_value (*q);
- else if (*p == 'R')
- fc->fde_encoding = *q++;
- else
- break;
- p++;
- }
-
- if (fc->fde_encoding)
- encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
- }
-
- frame_need_space (fc, fc->ra);
- }
- else
- {
- unsigned char *look_for;
- static Frame_Chunk fde_fc;
-
- fc = & fde_fc;
- memset (fc, 0, sizeof (Frame_Chunk));
-
- look_for = is_eh ? start - 4 - cie_id : section_start + cie_id;
-
- for (cie = chunks; cie ; cie = cie->next)
- if (cie->chunk_start == look_for)
- break;
-
- if (!cie)
- {
- warn ("Invalid CIE pointer %08lx in FDE at %p\n",
- cie_id, saved_start);
- start = block_end;
- fc->ncols = 0;
- fc->col_type = xmalloc (sizeof (short int));
- fc->col_offset = xmalloc (sizeof (int));
- frame_need_space (fc, max_regs - 1);
- cie = fc;
- fc->augmentation = "";
- fc->fde_encoding = 0;
- }
- else
- {
- fc->ncols = cie->ncols;
- fc->col_type = xcmalloc (fc->ncols, sizeof (short int));
- fc->col_offset = xcmalloc (fc->ncols, sizeof (int));
- memcpy (fc->col_type, cie->col_type, fc->ncols * sizeof (short int));
- memcpy (fc->col_offset, cie->col_offset, fc->ncols * sizeof (int));
- fc->augmentation = cie->augmentation;
- fc->code_factor = cie->code_factor;
- fc->data_factor = cie->data_factor;
- fc->cfa_reg = cie->cfa_reg;
- fc->cfa_offset = cie->cfa_offset;
- fc->ra = cie->ra;
- frame_need_space (fc, max_regs-1);
- fc->fde_encoding = cie->fde_encoding;
- }
-
- if (fc->fde_encoding)
- encoded_ptr_size = size_of_encoded_value (fc->fde_encoding);
-
- fc->pc_begin = get_encoded_value (start, fc->fde_encoding);
- if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
- /* Don't adjust for ET_REL since there's invariably a pcrel
- reloc here, which we haven't applied. */
- && elf_header.e_type != ET_REL)
- fc->pc_begin += section->sh_addr + (start - section_start);
- start += encoded_ptr_size;
- fc->pc_range = byte_get (start, encoded_ptr_size);
- start += encoded_ptr_size;
-
- if (cie->augmentation[0] == 'z')
- {
- augmentation_data_len = LEB ();
- augmentation_data = start;
- start += augmentation_data_len;
- }
-
- printf ("\n%08lx %08lx %08lx FDE cie=%08lx pc=%08lx..%08lx\n",
- (unsigned long)(saved_start - section_start), length, cie_id,
- (unsigned long)(cie->chunk_start - section_start),
- fc->pc_begin, fc->pc_begin + fc->pc_range);
- 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]);
- putchar ('\n');
- putchar ('\n');
- }
- }
-
- /* At this point, fc is the current chunk, cie (if any) is set, and
- we're about to interpret instructions for the chunk. */
- /* ??? At present we need to do this always, since this sizes the
- fc->col_type and fc->col_offset arrays, which we write into always.
- We should probably split the interpreted and non-interpreted bits
- into two different routines, since there's so much that doesn't
- really overlap between them. */
- if (1 || do_debug_frames_interp)
- {
- /* Start by making a pass over the chunk, allocating storage
- and taking note of what registers are used. */
- unsigned char *tmp = start;
-
- while (start < block_end)
- {
- unsigned op, opa;
- unsigned long reg, tmp;
-
- op = *start++;
- opa = op & 0x3f;
- if (op & 0xc0)
- op &= 0xc0;
-
- /* Warning: if you add any more cases to this switch, be
- sure to add them to the corresponding switch below. */
- switch (op)
- {
- case DW_CFA_advance_loc:
- break;
- case DW_CFA_offset:
- LEB ();
- frame_need_space (fc, opa);
- fc->col_type[opa] = DW_CFA_undefined;
- break;
- case DW_CFA_restore:
- frame_need_space (fc, opa);
- fc->col_type[opa] = DW_CFA_undefined;
- break;
- case DW_CFA_set_loc:
- start += encoded_ptr_size;
- break;
- case DW_CFA_advance_loc1:
- start += 1;
- break;
- case DW_CFA_advance_loc2:
- start += 2;
- break;
- case DW_CFA_advance_loc4:
- start += 4;
- break;
- case DW_CFA_offset_extended:
- reg = LEB (); LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_restore_extended:
- reg = LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_undefined:
- reg = LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_same_value:
- reg = LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_register:
- reg = LEB (); LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_def_cfa:
- LEB (); LEB ();
- break;
- case DW_CFA_def_cfa_register:
- LEB ();
- break;
- case DW_CFA_def_cfa_offset:
- LEB ();
- break;
- case DW_CFA_def_cfa_expression:
- tmp = LEB ();
- start += tmp;
- break;
- case DW_CFA_expression:
- reg = LEB ();
- tmp = LEB ();
- start += tmp;
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_offset_extended_sf:
- reg = LEB (); SLEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
- break;
- case DW_CFA_def_cfa_sf:
- LEB (); SLEB ();
- break;
- case DW_CFA_def_cfa_offset_sf:
- SLEB ();
- break;
- case DW_CFA_MIPS_advance_loc8:
- start += 8;
- break;
- case DW_CFA_GNU_args_size:
- LEB ();
- break;
- case DW_CFA_GNU_negative_offset_extended:
- reg = LEB (); LEB ();
- frame_need_space (fc, reg);
- fc->col_type[reg] = DW_CFA_undefined;
-
- default:
- break;
- }
- }
- start = tmp;
- }
-
- /* Now we know what registers are used, make a second pass over
- the chunk, this time actually printing out the info. */
-
- while (start < block_end)
- {
- unsigned op, opa;
- unsigned long ul, reg, roffs;
- long l, ofs;
- bfd_vma vma;
-
- op = *start++;
- opa = op & 0x3f;
- if (op & 0xc0)
- op &= 0xc0;
-
- /* Warning: if you add any more cases to this switch, be
- sure to add them to the corresponding switch above. */
- switch (op)
- {
- case DW_CFA_advance_loc:
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc: %d to %08lx\n",
- opa * fc->code_factor,
- fc->pc_begin + opa * fc->code_factor);
- fc->pc_begin += opa * fc->code_factor;
- break;
-
- case DW_CFA_offset:
- roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_offset: r%d at cfa%+ld\n",
- opa, roffs * fc->data_factor);
- fc->col_type[opa] = DW_CFA_offset;
- fc->col_offset[opa] = roffs * fc->data_factor;
- break;
-
- case DW_CFA_restore:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_restore: r%d\n", opa);
- fc->col_type[opa] = cie->col_type[opa];
- fc->col_offset[opa] = cie->col_offset[opa];
- break;
-
- case DW_CFA_set_loc:
- vma = get_encoded_value (start, fc->fde_encoding);
- if ((fc->fde_encoding & 0x70) == DW_EH_PE_pcrel
- && elf_header.e_type != ET_REL)
- vma += section->sh_addr + (start - section_start);
- start += encoded_ptr_size;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_set_loc: %08lx\n", (unsigned long)vma);
- fc->pc_begin = vma;
- break;
-
- case DW_CFA_advance_loc1:
- ofs = byte_get (start, 1); start += 1;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc1: %ld to %08lx\n",
- ofs * fc->code_factor,
- fc->pc_begin + ofs * fc->code_factor);
- fc->pc_begin += ofs * fc->code_factor;
- break;
-
- case DW_CFA_advance_loc2:
- ofs = byte_get (start, 2); start += 2;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc2: %ld to %08lx\n",
- ofs * fc->code_factor,
- fc->pc_begin + ofs * fc->code_factor);
- fc->pc_begin += ofs * fc->code_factor;
- break;
-
- case DW_CFA_advance_loc4:
- ofs = byte_get (start, 4); start += 4;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_advance_loc4: %ld to %08lx\n",
- ofs * fc->code_factor,
- fc->pc_begin + ofs * fc->code_factor);
- fc->pc_begin += ofs * fc->code_factor;
- break;
-
- case DW_CFA_offset_extended:
- reg = LEB ();
- roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_offset_extended: r%ld at cfa%+ld\n",
- reg, roffs * fc->data_factor);
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = roffs * fc->data_factor;
- break;
-
- case DW_CFA_restore_extended:
- reg = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_restore_extended: r%ld\n", reg);
- fc->col_type[reg] = cie->col_type[reg];
- fc->col_offset[reg] = cie->col_offset[reg];
- break;
-
- case DW_CFA_undefined:
- reg = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_undefined: r%ld\n", reg);
- fc->col_type[reg] = DW_CFA_undefined;
- fc->col_offset[reg] = 0;
- break;
-
- case DW_CFA_same_value:
- reg = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_same_value: r%ld\n", reg);
- fc->col_type[reg] = DW_CFA_same_value;
- fc->col_offset[reg] = 0;
- break;
-
- case DW_CFA_register:
- reg = LEB ();
- roffs = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_register: r%ld in r%ld\n", reg, roffs);
- fc->col_type[reg] = DW_CFA_register;
- fc->col_offset[reg] = roffs;
- break;
-
- case DW_CFA_remember_state:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_remember_state\n");
- rs = xmalloc (sizeof (Frame_Chunk));
- rs->ncols = fc->ncols;
- rs->col_type = xcmalloc (rs->ncols, sizeof (short int));
- rs->col_offset = xcmalloc (rs->ncols, sizeof (int));
- memcpy (rs->col_type, fc->col_type, rs->ncols);
- memcpy (rs->col_offset, fc->col_offset, rs->ncols * sizeof (int));
- rs->next = remembered_state;
- remembered_state = rs;
- break;
-
- case DW_CFA_restore_state:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_restore_state\n");
- rs = remembered_state;
- if (rs)
- {
- remembered_state = rs->next;
- frame_need_space (fc, rs->ncols-1);
- memcpy (fc->col_type, rs->col_type, rs->ncols);
- memcpy (fc->col_offset, rs->col_offset,
- rs->ncols * sizeof (int));
- free (rs->col_type);
- free (rs->col_offset);
- free (rs);
- }
- else if (do_debug_frames_interp)
- printf ("Mismatched DW_CFA_restore_state\n");
- break;
-
- case DW_CFA_def_cfa:
- fc->cfa_reg = LEB ();
- fc->cfa_offset = LEB ();
- fc->cfa_exp = 0;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa: r%d ofs %d\n",
- fc->cfa_reg, fc->cfa_offset);
- break;
-
- case DW_CFA_def_cfa_register:
- fc->cfa_reg = LEB ();
- fc->cfa_exp = 0;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_reg: r%d\n", fc->cfa_reg);
- break;
-
- case DW_CFA_def_cfa_offset:
- fc->cfa_offset = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_offset: %d\n", fc->cfa_offset);
- break;
-
- case DW_CFA_nop:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_nop\n");
- break;
-
- case DW_CFA_def_cfa_expression:
- ul = LEB ();
- if (! do_debug_frames_interp)
- {
- printf (" DW_CFA_def_cfa_expression (");
- decode_location_expression (start, eh_addr_size, ul, 0);
- printf (")\n");
- }
- fc->cfa_exp = 1;
- start += ul;
- break;
-
- case DW_CFA_expression:
- reg = LEB ();
- ul = LEB ();
- if (! do_debug_frames_interp)
- {
- printf (" DW_CFA_expression: r%ld (", reg);
- decode_location_expression (start, eh_addr_size, ul, 0);
- printf (")\n");
- }
- fc->col_type[reg] = DW_CFA_expression;
- start += ul;
- break;
-
- case DW_CFA_offset_extended_sf:
- reg = LEB ();
- l = SLEB ();
- frame_need_space (fc, reg);
- if (! do_debug_frames_interp)
- printf (" DW_CFA_offset_extended_sf: r%ld at cfa%+ld\n",
- reg, l * fc->data_factor);
- fc->col_type[reg] = DW_CFA_offset;
- fc->col_offset[reg] = l * fc->data_factor;
- break;
-
- case DW_CFA_def_cfa_sf:
- fc->cfa_reg = LEB ();
- fc->cfa_offset = SLEB ();
- fc->cfa_offset = fc->cfa_offset * fc->data_factor;
- fc->cfa_exp = 0;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_sf: r%d ofs %d\n",
- fc->cfa_reg, fc->cfa_offset);
- break;
-
- case DW_CFA_def_cfa_offset_sf:
- fc->cfa_offset = SLEB ();
- fc->cfa_offset = fc->cfa_offset * fc->data_factor;
- if (! do_debug_frames_interp)
- printf (" DW_CFA_def_cfa_offset_sf: %d\n", fc->cfa_offset);
- break;
-
- case DW_CFA_MIPS_advance_loc8:
- ofs = byte_get (start, 8); start += 8;
- if (do_debug_frames_interp)
- frame_display_row (fc, &need_col_headers, &max_regs);
- else
- printf (" DW_CFA_MIPS_advance_loc8: %ld to %08lx\n",
- ofs * fc->code_factor,
- fc->pc_begin + ofs * fc->code_factor);
- fc->pc_begin += ofs * fc->code_factor;
- break;
-
- case DW_CFA_GNU_window_save:
- if (! do_debug_frames_interp)
- printf (" DW_CFA_GNU_window_save\n");
- break;
-
- case DW_CFA_GNU_args_size:
- ul = LEB ();
- if (! do_debug_frames_interp)
- printf (" DW_CFA_GNU_args_size: %ld\n", ul);
- break;