Ulrich Drepper | b08d5a8 | 2005-07-26 05:00:05 +0000 | [diff] [blame^] | 1 | /* Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc. |
| 2 | Written by Ulrich Drepper <drepper@redhat.com>, 1998. |
| 3 | |
| 4 | This program is Open Source software; you can redistribute it and/or |
| 5 | modify it under the terms of the Open Software License version 1.0 as |
| 6 | published by the Open Source Initiative. |
| 7 | |
| 8 | You should have received a copy of the Open Software License along |
| 9 | with this program; if not, you may obtain a copy of the Open Software |
| 10 | License version 1.0 from http://www.opensource.org/licenses/osl.php or |
| 11 | by writing the Open Source Initiative c/o Lawrence Rosen, Esq., |
| 12 | 3001 King Ranch Road, Ukiah, CA 95482. */ |
| 13 | |
| 14 | #include <config.h> |
| 15 | |
| 16 | #include <error.h> |
| 17 | #include <fcntl.h> |
| 18 | #include <gelf.h> |
| 19 | #include <stdio.h> |
| 20 | #include <stdlib.h> |
| 21 | #include <string.h> |
| 22 | #include <time.h> |
| 23 | #include <unistd.h> |
| 24 | |
| 25 | |
| 26 | static const char *machines[] = |
| 27 | { |
| 28 | #define MACHINE(name) [name] = #name |
| 29 | MACHINE (EM_NONE), |
| 30 | MACHINE (EM_M32), |
| 31 | MACHINE (EM_SPARC), |
| 32 | MACHINE (EM_386), |
| 33 | MACHINE (EM_68K), |
| 34 | MACHINE (EM_88K), |
| 35 | MACHINE (EM_860), |
| 36 | MACHINE (EM_MIPS), |
| 37 | MACHINE (EM_MIPS_RS3_LE), |
| 38 | MACHINE (EM_PARISC), |
| 39 | MACHINE (EM_VPP500), |
| 40 | MACHINE (EM_SPARC32PLUS), |
| 41 | MACHINE (EM_960), |
| 42 | MACHINE (EM_PPC), |
| 43 | MACHINE (EM_PPC64), |
| 44 | MACHINE (EM_V800), |
| 45 | MACHINE (EM_FR20), |
| 46 | MACHINE (EM_RH32), |
| 47 | MACHINE (EM_RCE), |
| 48 | MACHINE (EM_ARM), |
| 49 | MACHINE (EM_FAKE_ALPHA), |
| 50 | MACHINE (EM_SH), |
| 51 | MACHINE (EM_SPARCV9), |
| 52 | MACHINE (EM_TRICORE), |
| 53 | MACHINE (EM_ARC), |
| 54 | MACHINE (EM_H8_300), |
| 55 | MACHINE (EM_H8_300H), |
| 56 | MACHINE (EM_H8S), |
| 57 | MACHINE (EM_H8_500), |
| 58 | MACHINE (EM_IA_64), |
| 59 | MACHINE (EM_MIPS_X), |
| 60 | MACHINE (EM_COLDFIRE), |
| 61 | MACHINE (EM_68HC12), |
| 62 | MACHINE (EM_MMA), |
| 63 | MACHINE (EM_PCP), |
| 64 | MACHINE (EM_NCPU), |
| 65 | MACHINE (EM_NDR1), |
| 66 | MACHINE (EM_STARCORE), |
| 67 | MACHINE (EM_ME16), |
| 68 | MACHINE (EM_ST100), |
| 69 | MACHINE (EM_TINYJ), |
| 70 | MACHINE (EM_FX66), |
| 71 | MACHINE (EM_ST9PLUS), |
| 72 | MACHINE (EM_ST7), |
| 73 | MACHINE (EM_68HC16), |
| 74 | MACHINE (EM_68HC11), |
| 75 | MACHINE (EM_68HC08), |
| 76 | MACHINE (EM_68HC05), |
| 77 | MACHINE (EM_SVX), |
| 78 | MACHINE (EM_ST19), |
| 79 | MACHINE (EM_VAX) |
| 80 | }; |
| 81 | |
| 82 | |
| 83 | int |
| 84 | main (int argc, char *argv[]) |
| 85 | { |
| 86 | int fd; |
| 87 | Elf *elf; |
| 88 | Elf_Cmd cmd; |
| 89 | size_t n; |
| 90 | int arg = 1; |
| 91 | int verbose = 0; |
| 92 | |
| 93 | /* Recognize optional verbosity flag. */ |
| 94 | if (arg < argc && strcmp (argv[arg], "-v") == 0) |
| 95 | { |
| 96 | verbose = 1; |
| 97 | ++arg; |
| 98 | } |
| 99 | |
| 100 | /* Any more arguments available. */ |
| 101 | if (arg >= argc) |
| 102 | error (EXIT_FAILURE, 0, "No input file given"); |
| 103 | |
| 104 | /* Open the input file. */ |
| 105 | fd = open (argv[arg], O_RDONLY); |
| 106 | if (fd == -1) |
| 107 | { |
| 108 | perror ("cannot open input file"); |
| 109 | exit (1); |
| 110 | } |
| 111 | |
| 112 | /* Set the ELF version we are using here. */ |
| 113 | if (elf_version (EV_CURRENT) == EV_NONE) |
| 114 | { |
| 115 | puts ("ELF library too old"); |
| 116 | exit (1); |
| 117 | } |
| 118 | |
| 119 | /* Start reading the file. */ |
| 120 | cmd = ELF_C_READ; |
| 121 | elf = elf_begin (fd, cmd, NULL); |
| 122 | if (elf == NULL) |
| 123 | { |
| 124 | printf ("elf_begin: %s\n", elf_errmsg (-1)); |
| 125 | exit (1); |
| 126 | } |
| 127 | |
| 128 | /* If it is no archive punt. */ |
| 129 | if (elf_kind (elf) != ELF_K_AR) |
| 130 | { |
| 131 | printf ("%s is not an archive\n", argv[1]); |
| 132 | exit (1); |
| 133 | } |
| 134 | |
| 135 | if (verbose) |
| 136 | { |
| 137 | /* The verbose variant. We print a lot of information. */ |
| 138 | Elf *subelf; |
| 139 | char buf[100]; |
| 140 | time_t t; |
| 141 | |
| 142 | /* Get the elements of the archive one after the other. */ |
| 143 | while ((subelf = elf_begin (fd, cmd, elf)) != NULL) |
| 144 | { |
| 145 | /* The the header for this element. */ |
| 146 | Elf_Arhdr *arhdr = elf_getarhdr (subelf); |
| 147 | |
| 148 | if (arhdr == NULL) |
| 149 | { |
| 150 | printf ("cannot get arhdr: %s\n", elf_errmsg (-1)); |
| 151 | break; |
| 152 | } |
| 153 | |
| 154 | switch (elf_kind (subelf)) |
| 155 | { |
| 156 | case ELF_K_ELF: |
| 157 | fputs ("ELF file:\n", stdout); |
| 158 | break; |
| 159 | |
| 160 | case ELF_K_AR: |
| 161 | fputs ("archive:\n", stdout); |
| 162 | break; |
| 163 | |
| 164 | default: |
| 165 | fputs ("unknown file:\n", stdout); |
| 166 | break; |
| 167 | } |
| 168 | |
| 169 | /* Print general information. */ |
| 170 | t = arhdr->ar_date; |
| 171 | strftime (buf, sizeof buf, "%Y-%m-%dT%H:%M:%S%z", gmtime (&t)); |
| 172 | printf (" name : \"%s\"\n" |
| 173 | " time : %s\n" |
| 174 | " uid : %ld\n" |
| 175 | " gid : %ld\n" |
| 176 | " mode : %o\n" |
| 177 | " size : %ld\n" |
| 178 | " rawname : \"%s\"\n", |
| 179 | arhdr->ar_name, |
| 180 | buf, |
| 181 | (long int) arhdr->ar_uid, |
| 182 | (long int) arhdr->ar_gid, |
| 183 | arhdr->ar_mode, |
| 184 | (long int) arhdr->ar_size, |
| 185 | arhdr->ar_rawname); |
| 186 | |
| 187 | /* For ELF files we can provide some more information. */ |
| 188 | if (elf_kind (subelf) == ELF_K_ELF) |
| 189 | { |
| 190 | GElf_Ehdr ehdr; |
| 191 | |
| 192 | /* Get the ELF header. */ |
| 193 | if (gelf_getehdr (subelf, &ehdr) == NULL) |
| 194 | printf (" *** cannot get ELF header: %s\n", elf_errmsg (-1)); |
| 195 | else |
| 196 | { |
| 197 | printf (" binary class : %s\n", |
| 198 | ehdr.e_ident[EI_CLASS] == ELFCLASS32 |
| 199 | ? "ELFCLASS32" : "ELFCLASS64"); |
| 200 | printf (" data encoding: %s\n", |
| 201 | ehdr.e_ident[EI_DATA] == ELFDATA2LSB |
| 202 | ? "ELFDATA2LSB" : "ELFDATA2MSB"); |
| 203 | printf (" binary type : %s\n", |
| 204 | ehdr.e_type == ET_REL |
| 205 | ? "relocatable" |
| 206 | : (ehdr.e_type == ET_EXEC |
| 207 | ? "executable" |
| 208 | : (ehdr.e_type == ET_DYN |
| 209 | ? "dynamic" |
| 210 | : "core file"))); |
| 211 | printf (" machine : %s\n", |
| 212 | (ehdr.e_machine >= (sizeof (machines) |
| 213 | / sizeof (machines[0])) |
| 214 | || machines[ehdr.e_machine] == NULL) |
| 215 | ? "???" |
| 216 | : machines[ehdr.e_machine]); |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | /* Get next archive element. */ |
| 221 | cmd = elf_next (subelf); |
| 222 | if (elf_end (subelf) != 0) |
| 223 | printf ("error while freeing sub-ELF descriptor: %s\n", |
| 224 | elf_errmsg (-1)); |
| 225 | } |
| 226 | } |
| 227 | else |
| 228 | { |
| 229 | /* The simple version. Only print a bit of information. */ |
| 230 | Elf_Arsym *arsym = elf_getarsym (elf, &n); |
| 231 | |
| 232 | if (n == 0) |
| 233 | printf ("no symbol table in archive: %s\n", elf_errmsg (-1)); |
| 234 | else |
| 235 | { |
| 236 | --n; |
| 237 | |
| 238 | while (n-- > 0) |
| 239 | printf ("name = \"%s\", offset = %ld, hash = %lx\n", |
| 240 | arsym[n].as_name, (long int) arsym[n].as_off, |
| 241 | arsym[n].as_hash); |
| 242 | } |
| 243 | } |
| 244 | |
| 245 | /* Free the ELF handle. */ |
| 246 | if (elf_end (elf) != 0) |
| 247 | printf ("error while freeing ELF descriptor: %s\n", elf_errmsg (-1)); |
| 248 | |
| 249 | /* Close the underlying file. */ |
| 250 | close (fd); |
| 251 | |
| 252 | return 0; |
| 253 | } |