diff options
Diffstat (limited to 'binutils/objcopy.c')
| -rw-r--r-- | binutils/objcopy.c | 51 |
1 files changed, 45 insertions, 6 deletions
diff --git a/binutils/objcopy.c b/binutils/objcopy.c index 8185f28..198ba3a 100644 --- a/binutils/objcopy.c +++ b/binutils/objcopy.c @@ -220,6 +220,9 @@ static enum decompress = 1 << 4 } do_debug_sections = nothing; +/* Whether to generate ELF common symbols with the STT_COMMON type. */ +static enum bfd_link_discard do_elf_stt_common = unchanged; + /* Whether to change the leading character in symbol names. */ static bfd_boolean change_leading_char = FALSE; @@ -294,6 +297,7 @@ enum command_line_switch OPTION_DEBUGGING, OPTION_DECOMPRESS_DEBUG_SECTIONS, OPTION_DUMP_SECTION, + OPTION_ELF_STT_COMMON, OPTION_EXTRACT_DWO, OPTION_EXTRACT_SYMBOL, OPTION_FILE_ALIGNMENT, @@ -403,6 +407,7 @@ static struct option copy_options[] = {"discard-all", no_argument, 0, 'x'}, {"discard-locals", no_argument, 0, 'X'}, {"dump-section", required_argument, 0, OPTION_DUMP_SECTION}, + {"elf-stt-common", required_argument, 0, OPTION_ELF_STT_COMMON}, {"enable-deterministic-archives", no_argument, 0, 'D'}, {"extract-dwo", no_argument, 0, OPTION_EXTRACT_DWO}, {"extract-symbol", no_argument, 0, OPTION_EXTRACT_SYMBOL}, @@ -622,6 +627,8 @@ copy_usage (FILE *stream, int exit_status) --compress-debug-sections[={none|zlib|zlib-gnu|zlib-gabi}]\n\ Compress DWARF debug sections using zlib\n\ --decompress-debug-sections Decompress DWARF debug sections using zlib\n\ + --elf-stt-common=[yes|no] Generate ELF common symbols with STT_COMMON\n\ + type\n\ -v --verbose List all object files modified\n\ @<file> Read options from <file>\n\ -V --version Display this program's version number\n\ @@ -1820,13 +1827,22 @@ copy_object (bfd *ibfd, bfd *obfd, const bfd_arch_info_type *input_arch) return FALSE; } - if ((do_debug_sections & compress) != 0 - && do_debug_sections != compress - && ibfd->xvec->flavour != bfd_target_elf_flavour) + if (ibfd->xvec->flavour != bfd_target_elf_flavour) { - non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"), - bfd_get_archive_filename (ibfd)); - return FALSE; + if ((do_debug_sections & compress) != 0 + && do_debug_sections != compress) + { + non_fatal (_("--compress-debug-sections=[zlib|zlib-gnu|zlib-gabi] is unsupported on `%s'"), + bfd_get_archive_filename (ibfd)); + return FALSE; + } + + if (do_elf_stt_common) + { + non_fatal (_("--elf-stt-common=[yes|no] is unsupported on `%s'"), + bfd_get_archive_filename (ibfd)); + return FALSE; + } } if (verbose) @@ -2767,6 +2783,19 @@ copy_file (const char *input_filename, const char *output_filename, break; } + switch (do_elf_stt_common) + { + case elf_stt_common: + ibfd->flags |= BFD_CONVERT_ELF_COMMON | BFD_USE_ELF_STT_COMMON; + break; + break; + case no_elf_stt_common: + ibfd->flags |= BFD_CONVERT_ELF_COMMON; + break; + default: + break; + } + if (bfd_check_format (ibfd, bfd_archive)) { bfd_boolean force_output_target; @@ -4246,6 +4275,16 @@ copy_main (int argc, char *argv[]) do_debug_sections = decompress; break; + case OPTION_ELF_STT_COMMON: + if (strcasecmp (optarg, "yes") == 0) + do_elf_stt_common = elf_stt_common; + else if (strcasecmp (optarg, "no") == 0) + do_elf_stt_common = no_elf_stt_common; + else + fatal (_("unrecognized --elf-stt-common= option `%s'"), + optarg); + break; + case OPTION_GAP_FILL: { bfd_vma gap_fill_vma; |