static void bfd_pef_print_symbol (bfd *abfd, void * afile, asymbol *symbol, bfd_print_symbol_type how) { FILE *file = (FILE *) afile; switch (how) { case bfd_print_symbol_name: fprintf (file, "%s", symbol->name); break; default: bfd_print_symbol_vandf (abfd, (void *) file, symbol); fprintf (file, " %-5s %s", symbol->section->name, symbol->name); if (CONST_STRNEQ (symbol->name, "__traceback_")) { unsigned char *buf = xmalloc (symbol->udata.i); size_t offset = symbol->value + 4; size_t len = symbol->udata.i; int ret; bfd_get_section_contents (abfd, symbol->section, buf, offset, len); ret = bfd_pef_parse_traceback_table (abfd, symbol->section, buf, len, 0, NULL, file); if (ret < 0) fprintf (file, " [ERROR]"); free (buf); } } }
int main(int argc, char *argv[]) { bfd *abfd; bfd_init(); abfd = bfd_openr(argv[1], NULL); if (abfd == NULL) { bfd_perror("bfd_openr"); exit(1); } if (! bfd_check_format(abfd, bfd_object)) { bfd_perror("bfd_check_format"); } printf("SYMBOL TABLE:\n"); { long storage_needed; asymbol **symbol_table; long number_of_symbols; long i; storage_needed = bfd_get_symtab_upper_bound (abfd); printf("storage_need=%d\n", storage_needed); if (storage_needed < 0) { bfd_perror("bfd_get_symtab_upper_bound"); exit(1); } if (storage_needed == 0) { printf("no symbols\n"); exit(0); } symbol_table = (asymbol **)malloc (storage_needed); number_of_symbols = bfd_canonicalize_symtab (abfd, symbol_table); if (number_of_symbols < 0) { bfd_perror("bfd_canonicalize_symtab"); exit(1); } for (i = 0; i < number_of_symbols; i++) { asymbol *asym = symbol_table[i]; int symclass = bfd_decode_symclass(asym); symbol_info syminfo; bfd_symbol_info(asym, &syminfo); bfd_print_symbol_vandf(abfd, stdout, asym); printf(" 0x%x %s ", symclass, bfd_is_undefined_symclass(symclass) ? "?" : " "); printf(" %s ", bfd_asymbol_name(asym)); printf("%p ", bfd_asymbol_value(asym)); // printf(" %d ", syminfo.value); /* asymbol_value */ // printf(" %d ", syminfo.type); /* symclass */ // printf(" %s ", syminfo.name); /* asymbol_name */ printf(" %d ", syminfo.stab_type); printf(" %d ", syminfo.stab_other); printf(" %d ", syminfo.stab_desc); // printf(" %s ", syminfo.stab_name); printf("\n"); } } printf("DYNAMIC SYMBOL TABLE:\n"); { long storage_needed; asymbol **symbol_table; long number_of_symbols; long i; storage_needed = bfd_get_dynamic_symtab_upper_bound (abfd); printf("storage_need=%d\n", storage_needed); if (storage_needed < 0) { bfd_perror("bfd_get_symtab_upper_bound"); exit(1); } if (storage_needed == 0) { printf("no symbols\n"); exit(0); } symbol_table = (asymbol **)malloc (storage_needed); number_of_symbols = bfd_canonicalize_dynamic_symtab (abfd, symbol_table); if (number_of_symbols < 0) { bfd_perror("bfd_canonicalize_symtab"); exit(1); } for (i = 0; i < number_of_symbols; i++) { asymbol *asym = symbol_table[i]; int symclass = bfd_decode_symclass(asym); symbol_info syminfo; bfd_symbol_info(asym, &syminfo); bfd_print_symbol_vandf(abfd, stdout, asym); printf(" 0x%x %s ", symclass, bfd_is_undefined_symclass(symclass) ? "?" : " "); printf(" %s ", bfd_asymbol_name(asym)); printf("%p ", bfd_asymbol_value(asym)); // printf(" %d ", syminfo.value); /* asymbol_value */ // printf(" %d ", syminfo.type); /* symclass */ // printf(" %s ", syminfo.name); /* asymbol_name */ printf(" %d ", syminfo.stab_type); printf(" %d ", syminfo.stab_other); printf(" %d ", syminfo.stab_desc); // printf(" %s ", syminfo.stab_name); printf("\n"); } } exit(0); }