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examined. Fix bug displaying empty file name tables.
binutils* dwarf.c (do_checks): New global variable.
(display_formatted_table): Warn about an unexpected number of
columns in the table, if checks are enabled. Do not complain
about the lack of data following the number of entries in the
table if the table is empty.
(display_debug_lines_decoded): Only warn about an unexpected
number of columns in a table if checks are enabled.
* dwarf.h (do_checks): Add a prototype.
* elfcomm.c (error): Remove weak attribute.
(warn): Likewise.
* readelf.c (do_checks): Delete.
(warn): Delete.
(process_section_headers): Only warn about empty sections if
checks are enabled.
gas * dwarf2dbg.c (out_dir_and_file_list): Add comments describing the
construction of a DWARF-5 directory name table.
* testsuite/gas/elf/pr25917.d: Update expected output.
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Better than warning about bfd types, just don't include bfd.h and
warn against including the header again.
* elfcomm.c: Don't include bfd.h or bucomm.h.
(program_name): Declare.
(process_archive_index_and_symbols): Replace bfd_boolean with int,
and substitute FALSE and TRUE.
(setup_archive, setup_nested_archive): Likewise.
* elfcomm.h: Likewise.
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* elfcomm.c (setup_archive): Make file_size an off_t. Comment.
* elfcomm.h (setup_archive): Update prototype.
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* elfcomm.h (setup_archive): Update prototype.
* elfcomm.c (setup_archive): Add file_size parameter and sanity
check longnames_size.
(setup_nested_archive): Get file size and pass to setup_archive.
* elfedit.c (process_archive): Likewise.
* readelf.c (process_archive): Pass filedata->file_size to
setup_archive.
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PR 23430
include/
* elf/common.h (SHT_SYMTAB_SHNDX): Fix comment typo.
bfd/
* dwarf2.c (dwarf_debug_section_enum): Fix comment typo.
* elf.c (bfd_section_from_shdr, elf_sort_sections): Likewise.
binutils/
* elfcomm.h (struct archive_info): Rename uses_64bit_indicies
to uses_64bit_indices.
* elfcomm.c (setup_archive): Update uses of above.
* readelf.c (process_archive): Likewise.
(get_section_type_name): Rename indicies to indices.
(get_32bit_elf_symbols, get_64bit_elf_symbols): Likewise.
(process_section_groups): Likewise.
cpu/
* or1kcommon.cpu (spr-reg-indices): Fix description typo.
opcodes/
* or1k-desc.h: Regenerate.
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information files.
Hi Guys,
I am applying the rather large patch attached to this email to enhance
the readelf and objdump programs so that they now have the ability to
follow links to separate debug info files. (As requested by PR
15152). So for example whereas before we had this output:
$ readelf -wi main.exe
Contents of the .debug_info section:
[...]
<15> DW_AT_comp_dir : (alt indirect string, offset: 0x30c)
[...]
With the new option enabled we get:
$ readelf -wiK main.exe
main.exe: Found separate debug info file: dwz.debug
Contents of the .debug_info section (loaded from main.exe):
[...]
<15> DW_AT_comp_dir : (alt indirect string, offset: 0x30c) /home/nickc/Downloads/dwzm
[...]
The link following feature also means that we can get two lots of
output if the same section exists in both the main file and the
separate debug info file:
$ readelf -wiK main.exe
main.exe: Found separate debug info file: dwz.debug
Contents of the .debug_info section (loaded from main.exe):
[...]
Contents of the .debug_info section (loaded from dwz.debug):
[...]
The patch also adds the ability to display the contents of debuglink
sections:
$ readelf -wk main.exe
Contents of the .gnu_debugaltlink section:
Separate debug info file: dwz.debug
Build-ID (0x14 bytes):
c4 a8 89 8d 64 cf 70 8a 35 68 21 f2 ed 24 45 3e 18 7a 7a 93
Naturally there are long versions of these options (=follow-links and
=links). The documentation has been updated as well, and since both
readelf and objdump use the same set of debug display options, I have
moved the text into a separate file. There are also a couple of new
binutils tests to exercise the new behaviour.
There are a couple of missing features in the current patch however,
although I do intend to address them in follow up submissions:
Firstly the code does not check the build-id inside separate debug
info files when it is searching for a file specified by a
.gnu_debugaltlink section. It just assumes that if the file is there,
then it contains the information being sought.
Secondly I have not checked the DWARF-5 version of these link
features, so there will probably be code to add there.
Thirdly I have only implemented link following for the
DW_FORM_GNU_strp_alt format. Other alternate formats (eg
DW_FORM_GNU_ref_alt) have yet to be implemented.
Lastly, whilst implementing this feature I found it necessary to move
some of the global variables used by readelf (eg section_headers) into
a structure that can be passed around. I have moved all of the global
variables that were necessary to get the patch working, but I need to
complete the operation and move the remaining, file-specific variables
(eg dynamic_strings).
Cheers
Nick
binutils PR 15152
* dwarf.h (enum dwarf_section_display_enum): Add gnu_debuglink,
gnu_debugaltlink and separate_debug_str.
(struct dwarf_section): Add filename field.
Add prototypes for load_separate_debug_file, close_debug_file and
open_debug_file.
* dwarf.c (do_debug_links): New.
(do_follow_links): New.
(separate_debug_file, separate_debug_filename): New.
(fetch_alt_indirect_string): New function. Retrieves a string
from the debug string table in the separate debug info file.
(read_and_display_attr_value): Use it with DW_FORM_GNU_strp_alt.
(load_debug_section_with_follow): New function. Like
load_debug_section, but if the first attempt fails, then tries
again in the separate debug info file.
(introduce): New function.
(process_debug_info): Use load_debug_section_with_follow and
introduce.
(load_debug_info): Likewise.
(display_debug_lines_raw): Likewise.
(display_debug_lines_decoded): Likewise.
(display_debug_macinfo): Likewise.
(display_debug_macro): Likewise.
(display_debug_abbrev): Likewise.
(display_debug_loc): Likewise.
(display_debug_str): Likewise.
(display_debug_aranges): Likewise.
(display_debug_addr); Likewise.
(display_debug_frames): Likewise.
(display_gdb_index): Likewise.
(process_cu_tu_index): Likewise.
(load_cu_tu_indexes): Likewise.
(display_debug_links): New function. Displays the contents of a
.gnu_debuglink or .gnu_debugaltlink section.
(calc_gnu_debuglink_ctc32):New function. Calculates a CRC32
value.
(check_gnu_debuglink): New function. Checks the CRC of a
potential separate debug info file.
(parse_gnu_debuglink): New function. Reads a CRC value out of a
.gnu_debuglink section.
(check_gnu_debugaltlink): New function.
(parse_gnu_debugaltlink): New function. Reads the build-id value
out of a .gnu_debugaltlink section.
(load_separate_debug_info): New function. Finds and loads a
separate debug info file.
(load_separate_debug_file): New function. Attempts to find and
follow a link to a separate debug info file.
(free_debug_memory): Free the separate debug info file
information.
(opts_table): Add "follow-links" and "links".
(dwarf_select_sections_by_letters): Add "k" and "K".
(debug_displays): Reformat. Add .gnu-debuglink and
.gnu_debugaltlink.
Add an extra entry for .debug_str in a separate debug info file.
* doc/binutils.texi: Move description of debug dump features
common to both readelf and objdump into...
* objdump.c (usage): Add -Wk and -WK.
(load_specific_debug_section): Initialise the filename field in
the dwarf_section structure.
(close_debug_file): New function.
(open_debug_file): New function.
(dump_dwarf): Load and dump the separate debug info sections.
* readelf.c (struct filedata): New structure. Contains various
variables that used to be global:
(current_file_size, string_table, string_table_length, elf_header)
(section_headers, program_headers, dump_sects, num_dump_sects):
Move into filedata structure.
(cmdline): New global variable. Contains list of sections to dump
by number, as specified on the command line.
Add filedata parameter to most functions.
(load_debug_section): Load the string table if it has not already
been retrieved.
(close_file): New function.
(close_debug_file): New function.
(open_file): New function.
(open_debug_file): New function.
(process_object): Process sections in any separate debug info files.
* doc/debug.options.texi: New file. Add description of =links and
=follow-links options.
* NEWS: Mention the new feature.
* elfcomm.c: Have the byte gte functions take a const pointer.
* elfcomm.h: Update prototypes.
* testsuite/binutils-all/dw5.W: Update expected output.
* testsuite/binutils-all/objdump.WL: Update expected output.
* testsuite/binutils-all/objdump.exp: Add test of -WK and -Wk.
* testsuite/binutils-all/readelf.exp: Add test of -wK and -wk.
* testsuite/binutils-all/readelf.k: New file.
* testsuite/binutils-all/objdump.Wk: New file.
* testsuite/binutils-all/objdump.WK2: New file.
* testsuite/binutils-all/linkdebug.s: New file.
* testsuite/binutils-all/debuglink.s: New file.
gas * testsuite/gas/avr/large-debug-line-table.d: Update expected
output.
* testsuite/gas/elf/dwarf2-11.d: Likewise.
* testsuite/gas/elf/dwarf2-12.d: Likewise.
* testsuite/gas/elf/dwarf2-13.d: Likewise.
* testsuite/gas/elf/dwarf2-14.d: Likewise.
* testsuite/gas/elf/dwarf2-15.d: Likewise.
* testsuite/gas/elf/dwarf2-16.d: Likewise.
* testsuite/gas/elf/dwarf2-17.d: Likewise.
* testsuite/gas/elf/dwarf2-18.d: Likewise.
* testsuite/gas/elf/dwarf2-5.d: Likewise.
* testsuite/gas/elf/dwarf2-6.d: Likewise.
* testsuite/gas/elf/dwarf2-7.d: Likewise.
ld * testsuite/ld-avr/gc-section-debugline.d: Update expected
output.
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Fix od-macho.c to use a leb128 function from binutils/dwarf.c rather
than one from bfd/libbfd.c.
binutils/
* elfcomm.h (HOST_WIDEST_INT): Move to..
* sysdep.h: ..here.
* od-macho.c: Don't include libbfd.h. Do include dwarf.h
(dump_dyld_info_rebase): Use read_leb128 rather than
read_unsigned_leb128.
(dump_dyld_info_bind, dump_dyld_info_export_1): Likewise.
(dump_segment_split_info): Likewise.
(dump_dyld_info): Rename vars to avoid shadowing dwarf.h enums.
(dump_load_command): Likewise.
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Also fix a place where %lld was wrongly used to print a dwarf_vma.
* configure.ac: Check for long long and sizes of long long and long.
* elfcomm.h (HOST_WIDEST_INT): Test HAVE_LONG_LONG in place of
__STDC_VERSION__ and __GNUC__.
* strings.c (print_strings): Likewise.
* dwarf.c (DWARF_VMA_FMT, DWARF_VMA_FMT_LONG): Likewise.
(read_debug_line_header): Use dwarf_vmatoa to print warning.
* configure: Regenerate.
* config.in: Regenerate.
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PR binutils/17531
* dwarf.c (process_cu_tu_index): Check for an out of range row
index.
* elfcomm.c (adjust_relative_path): Change name_len parameter to
an unsigned long. Check for path length overflow.
(process_archive_index_and_symbols): Check for invalid header
size.
(setup_archive): Add checks for invalid archives.
(get_archive_member_name): Add range checks.
* elfcomm.h (adjust_relative_path): Update prototyoe.
* readelf.c (process_archive): Add range checks.
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scanning code into...
(process_archive_index_and_symbols): ... this function and add
support for 64-bit index tables.
* elfcomm.h (struct archive_info): Change type of index_num and
index_array to elf_vma.
Add 'uses_64bit_indicies' field.
* readelf.c (process_archive): Fix support for 64-bit indicies.
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(read_and_display_attr_value): Print 8-byte forms as single hex
numbers.
(process_debug_info): Print type signatures as single hex numbers.
* elfcomm.c (byte_get_64): New function.
* elfcomm.h (byte_get_64): New function.
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2010-11-21 H.J. Lu <hongjiu.lu@intel.com>
PR binutils/12235
* elfcomm.c: New.
* elfcomm.h: Likewise.
* Makefile.am (HFILES): Add elfcomm.h.
(CFILES): Add elfcomm.c.
(ELFLIBS): New.
(readelf_SOURCES): Add $(ELFLIBS).
(elfedit_SOURCES): Likewise.
(objdump_SOURCES): Likewise.
* Makefile.in: Regenerated.
* dwarf.c: Include "elfcomm.h".
(byte_get): Removed.
(byte_get_little_endian): Likewise.
(byte_get_big_endian): Likewise.
(byte_get_signed): Likewise.
(error): Likewise.
(warn): Likewise.
* dwarf.h (dwarf_vma): Defined with HOST_WIDEST_INT.
(dwarf_size_type): Likewise.
(byte_get): Removed.
(byte_get_signed): Likewise.
(byte_get_little_endian): Likewise.
(byte_get_big_endian): Likewise.
(error): Likewise.
(warn): Likewise.
* elfedit.c: Include "elfcomm.h". Don't include "aout/ar.h".
Call error () instead of non_fatal ().
(streq): Removed.
(strneq): Likewise.
(const_strneq): Likewise.
(non_fatal): Likewise.
(BYTE_GET): Likewise.
(BYTE_PUT): Likewise.
(byte_get): Likewise.
(byte_put): Likewise.
(byte_get_little_endian): Likewise.
(byte_get_big_endian): Likewise.
(byte_put_little_endian): Likewise.
(byte_put_big_endian): Likewise.
(adjust_relative_path): Likewise.
(archive_info): Likewise.
(setup_archive): Likewise.
(release_archive): Likewise.
(setup_nested_archive): Likewise.
(get_archive_member_name): Likewise.
(get_archive_member_name_at): Likewise.
(make_qualified_name): Likewise.
* objdump.c: Include "elfcomm.h".
* readelf.c: Include "elfcomm.h". Don't include "aout/ar.h".
(BYTE_GET): Removed.
(BYTE_GET_SIGNED): Removed.
(streq): Likewise.
(strneq): Likewise.
(const_strneq): Likewise.
(byte_put): Likewise.
(byte_put_little_endian): Likewise.
(byte_put_big_endian): Likewise.
(adjust_relative_path): Likewise.
(archive_info): Likewise.
(setup_archive): Likewise.
(release_archive): Likewise.
(setup_nested_archive): Likewise.
(get_archive_member_name): Likewise.
(get_archive_member_name_at): Likewise.
(make_qualified_name): Likewise.
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