diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/ChangeLog | 7 | ||||
| -rw-r--r-- | src/readelf.c | 20 |
2 files changed, 26 insertions, 1 deletions
diff --git a/src/ChangeLog b/src/ChangeLog index 33147066..fe95ecb1 100644 --- a/src/ChangeLog +++ b/src/ChangeLog @@ -1,3 +1,10 @@ +2016-11-17 Mark Wielaard <[email protected]> + + * readelf.c (options): Add optional arg SECTION for symbols. + (symbol_table_section): New static variable. + (parse_opt): Set symbol_table_section on 's'. + (print_symtab): Filter on symbol_table_section name is set. + 2016-11-10 Mark Wielaard <[email protected]> * ar.c (write_member): Make sure tmpbuf is large enough to contain diff --git a/src/readelf.c b/src/readelf.c index 204aeecb..a47b056a 100644 --- a/src/readelf.c +++ b/src/readelf.c @@ -85,7 +85,8 @@ static const struct argp_option options[] = { "relocs", 'r', NULL, 0, N_("Display relocations"), 0 }, { "section-headers", 'S', NULL, 0, N_("Display the sections' headers"), 0 }, { "sections", 'S', NULL, OPTION_ALIAS | OPTION_HIDDEN, NULL, 0 }, - { "symbols", 's', NULL, 0, N_("Display the symbol table"), 0 }, + { "symbols", 's', "SECTION", OPTION_ARG_OPTIONAL, + N_("Display the symbol table sections"), 0 }, { "version-info", 'V', NULL, 0, N_("Display versioning information"), 0 }, { "notes", 'n', NULL, 0, N_("Display the ELF notes"), 0 }, { "arch-specific", 'A', NULL, 0, @@ -157,6 +158,9 @@ static bool print_section_header; /* True if the symbol table should be printed. */ static bool print_symbol_table; +/* A specific section name, or NULL to print all symbol tables. */ +static char *symbol_table_section; + /* True if the version information should be printed. */ static bool print_version_info; @@ -389,6 +393,7 @@ parse_opt (int key, char *arg, case 's': print_symbol_table = true; any_control_option = true; + symbol_table_section = arg; break; case 'V': print_version_info = true; @@ -2236,6 +2241,19 @@ print_symtab (Ebl *ebl, int type) if (shdr != NULL && shdr->sh_type == (GElf_Word) type) { + if (symbol_table_section != NULL) + { + /* Get the section header string table index. */ + size_t shstrndx; + const char *sname; + if (unlikely (elf_getshdrstrndx (ebl->elf, &shstrndx) < 0)) + error (EXIT_FAILURE, 0, + gettext ("cannot get section header string table index")); + sname = elf_strptr (ebl->elf, shstrndx, shdr->sh_name); + if (sname == NULL || strcmp (sname, symbol_table_section) != 0) + continue; + } + if ((shdr->sh_flags & SHF_COMPRESSED) != 0) { if (elf_compress (scn, 0, 0) < 0) |