1 /* Copyright (C) 1998, 1999, 2000, 2002 Red Hat, Inc.
2 This file is part of Red Hat elfutils.
3 Written by Ulrich Drepper <drepper@redhat.com>, 1998.
4
5 Red Hat elfutils is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by the
7 Free Software Foundation; version 2 of the License.
8
9 Red Hat elfutils is distributed in the hope that it will be useful, but
10 WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 General Public License for more details.
13
14 You should have received a copy of the GNU General Public License along
15 with Red Hat elfutils; if not, write to the Free Software Foundation,
16 Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301 USA.
17
18 Red Hat elfutils is an included package of the Open Invention Network.
19 An included package of the Open Invention Network is a package for which
20 Open Invention Network licensees cross-license their patents. No patent
21 license is granted, either expressly or impliedly, by designation as an
22 included package. Should you wish to participate in the Open Invention
23 Network licensing program, please visit www.openinventionnetwork.com
24 <http://www.openinventionnetwork.com>. */
25
26 #include <config.h>
27
28 #include <error.h>
29 #include <fcntl.h>
30 #include <gelf.h>
31 #include <stdio.h>
32 #include <stdlib.h>
33 #include <string.h>
34 #include <time.h>
35 #include <unistd.h>
36
37
38 static const char *machines[] =
39 {
40 #define MACHINE(name) [name] = #name
41 MACHINE (EM_NONE),
42 MACHINE (EM_M32),
43 MACHINE (EM_SPARC),
44 MACHINE (EM_386),
45 MACHINE (EM_68K),
46 MACHINE (EM_88K),
47 MACHINE (EM_860),
48 MACHINE (EM_MIPS),
49 MACHINE (EM_MIPS_RS3_LE),
50 MACHINE (EM_PARISC),
51 MACHINE (EM_VPP500),
52 MACHINE (EM_SPARC32PLUS),
53 MACHINE (EM_960),
54 MACHINE (EM_PPC),
55 MACHINE (EM_PPC64),
56 MACHINE (EM_V800),
57 MACHINE (EM_FR20),
58 MACHINE (EM_RH32),
59 MACHINE (EM_RCE),
60 MACHINE (EM_ARM),
61 MACHINE (EM_FAKE_ALPHA),
62 MACHINE (EM_SH),
63 MACHINE (EM_SPARCV9),
64 MACHINE (EM_TRICORE),
65 MACHINE (EM_ARC),
66 MACHINE (EM_H8_300),
67 MACHINE (EM_H8_300H),
68 MACHINE (EM_H8S),
69 MACHINE (EM_H8_500),
70 MACHINE (EM_IA_64),
71 MACHINE (EM_MIPS_X),
72 MACHINE (EM_COLDFIRE),
73 MACHINE (EM_68HC12),
74 MACHINE (EM_MMA),
75 MACHINE (EM_PCP),
76 MACHINE (EM_NCPU),
77 MACHINE (EM_NDR1),
78 MACHINE (EM_STARCORE),
79 MACHINE (EM_ME16),
80 MACHINE (EM_ST100),
81 MACHINE (EM_TINYJ),
82 MACHINE (EM_FX66),
83 MACHINE (EM_ST9PLUS),
84 MACHINE (EM_ST7),
85 MACHINE (EM_68HC16),
86 MACHINE (EM_68HC11),
87 MACHINE (EM_68HC08),
88 MACHINE (EM_68HC05),
89 MACHINE (EM_SVX),
90 MACHINE (EM_ST19),
91 MACHINE (EM_VAX)
92 };
93
94
95 int
main(int argc,char * argv[])96 main (int argc, char *argv[])
97 {
98 int fd;
99 Elf *elf;
100 Elf_Cmd cmd;
101 size_t n;
102 int arg = 1;
103 int verbose = 0;
104
105 /* Recognize optional verbosity flag. */
106 if (arg < argc && strcmp (argv[arg], "-v") == 0)
107 {
108 verbose = 1;
109 ++arg;
110 }
111
112 /* Any more arguments available. */
113 if (arg >= argc)
114 error (EXIT_FAILURE, 0, "No input file given");
115
116 /* Open the input file. */
117 fd = open (argv[arg], O_RDONLY);
118 if (fd == -1)
119 {
120 perror ("cannot open input file");
121 exit (1);
122 }
123
124 /* Set the ELF version we are using here. */
125 if (elf_version (EV_CURRENT) == EV_NONE)
126 {
127 puts ("ELF library too old");
128 exit (1);
129 }
130
131 /* Start reading the file. */
132 cmd = ELF_C_READ;
133 elf = elf_begin (fd, cmd, NULL);
134 if (elf == NULL)
135 {
136 printf ("elf_begin: %s\n", elf_errmsg (-1));
137 exit (1);
138 }
139
140 /* If it is no archive punt. */
141 if (elf_kind (elf) != ELF_K_AR)
142 {
143 printf ("%s is not an archive\n", argv[1]);
144 exit (1);
145 }
146
147 if (verbose)
148 {
149 /* The verbose variant. We print a lot of information. */
150 Elf *subelf;
151 char buf[100];
152 time_t t;
153
154 /* Get the elements of the archive one after the other. */
155 while ((subelf = elf_begin (fd, cmd, elf)) != NULL)
156 {
157 /* The the header for this element. */
158 Elf_Arhdr *arhdr = elf_getarhdr (subelf);
159
160 if (arhdr == NULL)
161 {
162 printf ("cannot get arhdr: %s\n", elf_errmsg (-1));
163 break;
164 }
165
166 switch (elf_kind (subelf))
167 {
168 case ELF_K_ELF:
169 fputs ("ELF file:\n", stdout);
170 break;
171
172 case ELF_K_AR:
173 fputs ("archive:\n", stdout);
174 break;
175
176 default:
177 fputs ("unknown file:\n", stdout);
178 break;
179 }
180
181 /* Print general information. */
182 t = arhdr->ar_date;
183 strftime (buf, sizeof buf, "%Y-%m-%dT%H:%M:%S%z", gmtime (&t));
184 printf (" name : \"%s\"\n"
185 " time : %s\n"
186 " uid : %ld\n"
187 " gid : %ld\n"
188 " mode : %o\n"
189 " size : %ld\n"
190 " rawname : \"%s\"\n",
191 arhdr->ar_name,
192 buf,
193 (long int) arhdr->ar_uid,
194 (long int) arhdr->ar_gid,
195 arhdr->ar_mode,
196 (long int) arhdr->ar_size,
197 arhdr->ar_rawname);
198
199 /* For ELF files we can provide some more information. */
200 if (elf_kind (subelf) == ELF_K_ELF)
201 {
202 GElf_Ehdr ehdr;
203
204 /* Get the ELF header. */
205 if (gelf_getehdr (subelf, &ehdr) == NULL)
206 printf (" *** cannot get ELF header: %s\n", elf_errmsg (-1));
207 else
208 {
209 printf (" binary class : %s\n",
210 ehdr.e_ident[EI_CLASS] == ELFCLASS32
211 ? "ELFCLASS32" : "ELFCLASS64");
212 printf (" data encoding: %s\n",
213 ehdr.e_ident[EI_DATA] == ELFDATA2LSB
214 ? "ELFDATA2LSB" : "ELFDATA2MSB");
215 printf (" binary type : %s\n",
216 ehdr.e_type == ET_REL
217 ? "relocatable"
218 : (ehdr.e_type == ET_EXEC
219 ? "executable"
220 : (ehdr.e_type == ET_DYN
221 ? "dynamic"
222 : "core file")));
223 printf (" machine : %s\n",
224 (ehdr.e_machine >= (sizeof (machines)
225 / sizeof (machines[0]))
226 || machines[ehdr.e_machine] == NULL)
227 ? "???"
228 : machines[ehdr.e_machine]);
229 }
230 }
231
232 /* Get next archive element. */
233 cmd = elf_next (subelf);
234 if (elf_end (subelf) != 0)
235 printf ("error while freeing sub-ELF descriptor: %s\n",
236 elf_errmsg (-1));
237 }
238 }
239 else
240 {
241 /* The simple version. Only print a bit of information. */
242 Elf_Arsym *arsym = elf_getarsym (elf, &n);
243
244 if (n == 0)
245 printf ("no symbol table in archive: %s\n", elf_errmsg (-1));
246 else
247 {
248 --n;
249
250 while (n-- > 0)
251 printf ("name = \"%s\", offset = %ld, hash = %lx\n",
252 arsym[n].as_name, (long int) arsym[n].as_off,
253 arsym[n].as_hash);
254 }
255 }
256
257 /* Free the ELF handle. */
258 if (elf_end (elf) != 0)
259 printf ("error while freeing ELF descriptor: %s\n", elf_errmsg (-1));
260
261 /* Close the underlying file. */
262 close (fd);
263
264 return 0;
265 }
266