- case DW_AT_accessibility:
- switch (uvalue)
- {
- case DW_ACCESS_public: printf ("(public)"); break;
- case DW_ACCESS_protected: printf ("(protected)"); break;
- case DW_ACCESS_private: printf ("(private)"); break;
- default:
- printf ("(unknown accessibility)");
- break;
- }
- break;
-
- case DW_AT_visibility:
- switch (uvalue)
- {
- case DW_VIS_local: printf ("(local)"); break;
- case DW_VIS_exported: printf ("(exported)"); break;
- case DW_VIS_qualified: printf ("(qualified)"); break;
- default: printf ("(unknown visibility)"); break;
- }
- break;
-
- case DW_AT_virtuality:
- switch (uvalue)
- {
- case DW_VIRTUALITY_none: printf ("(none)"); break;
- case DW_VIRTUALITY_virtual: printf ("(virtual)"); break;
- case DW_VIRTUALITY_pure_virtual:printf ("(pure_virtual)"); break;
- default: printf ("(unknown virtuality)"); break;
- }
- break;
-
- case DW_AT_identifier_case:
- switch (uvalue)
- {
- case DW_ID_case_sensitive: printf ("(case_sensitive)"); break;
- case DW_ID_up_case: printf ("(up_case)"); break;
- case DW_ID_down_case: printf ("(down_case)"); break;
- case DW_ID_case_insensitive: printf ("(case_insensitive)"); break;
- default: printf ("(unknown case)"); break;
- }
- break;
-
- case DW_AT_calling_convention:
- switch (uvalue)
- {
- case DW_CC_normal: printf ("(normal)"); break;
- case DW_CC_program: printf ("(program)"); break;
- case DW_CC_nocall: printf ("(nocall)"); break;
- default:
- if (uvalue >= DW_CC_lo_user
- && uvalue <= DW_CC_hi_user)
- printf ("(user defined)");
- else
- printf ("(unknown convention)");
- }
- break;
-
- case DW_AT_ordering:
- switch (uvalue)
- {
- case -1: printf ("(undefined)"); break;
- case 0: printf ("(row major)"); break;
- case 1: printf ("(column major)"); break;
- }
- break;
-
- 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 (block_start)
- {
- printf ("(");
- decode_location_expression (block_start, pointer_size, uvalue, cu_offset);
- printf (")");
- }
- else if (form == DW_FORM_data4 || form == DW_FORM_data8)
- printf (_("(location list)"));
-
- break;
-
- case DW_AT_low_pc:
- /* This is a hack. We keep track of the DW_AT_low_pc attributes
- and use them when decoding DW_AT_ranges attributes. The
- assumption here is that we are decoding the attributes in order
- and so the correct base address for the range is the low_pc. */
- saved_DW_AT_low_pc = uvalue;
- break;
-
- case DW_AT_ranges:
- decode_range (uvalue, saved_DW_AT_low_pc);
- break;
-
- default:
- break;
- }
-
- 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,
- 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)
- && 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 = 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;
- }
- }
-
- 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);
- }
-
- 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)
- && 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;
-
- 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)
- {
- warn (_("Only version 2 and 3 DWARF debug information is currently supported.\n"));
- continue;
- }
-
- free_abbrevs ();
-
- /* Read in the abbrevs used by this compilation unit. */
- {
- Elf_Internal_Shdr *sec;
- unsigned char *begin;
-
- /* Locate the .debug_abbrev section and process it. */
- sec = find_section (".debug_abbrev");
- if (sec == NULL)
- {
- warn (_("Unable to locate .debug_abbrev section!\n"));
- return 0;
- }
-
- begin = get_data (NULL, file, sec->sh_offset, sec->sh_size,
- _("debug_abbrev section data"));
- if (!begin)
- return 0;
-
- process_abbrev_section (begin + compunit.cu_abbrev_offset,
- begin + sec->sh_size);
-
- free (begin);
- }
-
- level = 0;
- while (tags < start)
- {
- 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));
-
- 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;
- }
- }
-
- /* 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;
-
- 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 = 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");
-
- 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;
- 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 - section_begin, next - section_begin);
- else if (start > next)
- warn (_("There is an overlap [0x%lx - 0x%lx] in .debug_loc section.\n"),
- start - section_begin, 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)
- 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;
- }
-
- 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_64bit_debug_ranges (unsigned char * start, unsigned char * end)
-{
- bfd_vma base_address = 0;
-
- while (start < end)
- {
- bfd_vma a, b;
-
- a = byte_get (start, 8);
- b = byte_get (start + 8, 8);
-
- if (a == 0xffffffffffffffffLL)
- {
- printf (_(" set base address to "));
- print_vma (b, PREFIX_HEX);
- base_address = b;
- }
- else if (a == 0 && b == 0)
- printf ( _("end of range"));
- else if (a > b)
- printf (_(" <corrupt range entry, start is greater than end>"));
- else if (base_address == 0)
- {
- printf ("range from base address + ");
- print_vma (a, PREFIX_HEX);
- printf (" to base address + ");
- print_vma (b, PREFIX_HEX);
- }
- else
- {
- printf ("range from ");
- print_vma (base_address + a, PREFIX_HEX);
- printf (" to ");
- print_vma (base_address + b, PREFIX_HEX);
- }
-
- start += 16;
- printf ("\n");
- }
-
- return 1;
-}
-
-static int
-display_debug_ranges (Elf_Internal_Shdr *section,
- unsigned char *start,
- FILE *file ATTRIBUTE_UNUSED)
-{
- unsigned long base_address = 0;
- unsigned char *end = start + section->sh_size;
-
- printf (_("The section %s contains:\n\n"), SECTION_NAME (section));
-
- while (start < end)
- {
- unsigned long a;
- unsigned long b;
-
- a = byte_get (start, 4);
- b = byte_get (start + 4, 4);
-
- if (a == 0xffffffff)
- {
- /* Attempt to handle 64-bit DWARF3 format. This assumes
- that in a 32-bit DWARF3 file the base address will
- never be 0xffffffff, and that the .debug_ranges section
- will never contain a mixture of 32-bit and 64-bit entries. */
- if (b == 0xffffffff)
- return display_64bit_debug_ranges (start, end);
-
- printf (_(" set base address to 0x%lx\n"), b);
- base_address = b;
- }
- else if (a == 0 && b == 0)
- printf (_(" end of range\n"));
- else if (a > b)
- printf (_(" <corrupt range entry, start is greater than end>\n"));
- else if (base_address == 0)
- printf (_(" range from base address + 0x%lx to base address + 0x%lx\n"), a, b);
- else
- printf (_(" range from 0x%lx to 0x%lx\n"), base_address + a, base_address + b);
-
- start += 8;
- }
-
- 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 = xrealloc (fc->col_type, fc->ncols * sizeof (short int));
- fc->col_offset = xrealloc (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 is_32bit_elf ? 4 : 8;
- 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);