Add support to readelf and objdump for following links to separate debug information...

[deliverable/binutils-gdb.git] / binutils / ChangeLog

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index b7cc9a1c1588984bbf66c3d06a99a479c888fa5c..3f20d7f129d49621f34f7e3bcef6b0f3e986d272 100644 (file)
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,97 @@
+2017-11-15  Nick Clifton  <nickc@redhat.com>
+
+       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 get 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.
+
 2017-11-10  Jim Wilson  <jimw@sifive.com>
 
        * testsuite/binutils-all/objdump.exp: Expect the debug_ranges test to