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[/] [open8_urisc/] [trunk/] [gnu/] [binutils/] [binutils/] [elfedit.c] - Blame information for rev 146

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/* elfedit.c -- Update the ELF header of an ELF format file
2
   Copyright 2010
3
   Free Software Foundation, Inc.
4
 
5
   This file is part of GNU Binutils.
6
 
7
   This program is free software; you can redistribute it and/or modify
8
   it under the terms of the GNU General Public License as published by
9
   the Free Software Foundation; either version 3 of the License, or
10
   (at your option) any later version.
11
 
12
   This program is distributed in the hope that it will be useful,
13
   but WITHOUT ANY WARRANTY; without even the implied warranty of
14
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
   GNU General Public License for more details.
16
 
17
   You should have received a copy of the GNU General Public License
18
   along with this program; if not, write to the Free Software
19
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
20
   02110-1301, USA.  */
21
 
22
#include "config.h"
23
#include "sysdep.h"
24
#include <assert.h>
25
#include <sys/stat.h>
26
 
27
#if __GNUC__ >= 2
28
/* Define BFD64 here, even if our default architecture is 32 bit ELF
29
   as this will allow us to read in and parse 64bit and 32bit ELF files.
30
   Only do this if we believe that the compiler can support a 64 bit
31
   data type.  For now we only rely on GCC being able to do this.  */
32
#define BFD64
33
#endif
34
 
35
#include "bfd.h"
36
#include "elfcomm.h"
37
#include "bucomm.h"
38
 
39
#include "elf/common.h"
40
#include "elf/external.h"
41
#include "elf/internal.h"
42
 
43
#include "getopt.h"
44
#include "libiberty.h"
45
#include "safe-ctype.h"
46
#include "filenames.h"
47
 
48
char * program_name = "elfedit";
49
static long archive_file_offset;
50
static unsigned long archive_file_size;
51
static Elf_Internal_Ehdr elf_header;
52
static Elf32_External_Ehdr ehdr32;
53
static Elf64_External_Ehdr ehdr64;
54
static int input_elf_machine = -1;
55
static int output_elf_machine = -1;
56
static int input_elf_type = -1;
57
static int output_elf_type = -1;
58
static int input_elf_osabi = -1;
59
static int output_elf_osabi = -1;
60
static int input_elf_class = -1;
61
 
62
static int
63
update_elf_header (const char *file_name, FILE *file)
64
{
65
  int class, machine, type, status, osabi;
66
 
67
  if (elf_header.e_ident[EI_MAG0] != ELFMAG0
68
      || elf_header.e_ident[EI_MAG1] != ELFMAG1
69
      || elf_header.e_ident[EI_MAG2] != ELFMAG2
70
      || elf_header.e_ident[EI_MAG3] != ELFMAG3)
71
    {
72
      error
73
        (_("%s: Not an ELF file - wrong magic bytes at the start\n"),
74
         file_name);
75
      return 0;
76
    }
77
 
78
  if (elf_header.e_ident[EI_VERSION] != EV_CURRENT)
79
    {
80
      error
81
        (_("%s: Unsupported EI_VERSION: %d is not %d\n"),
82
         file_name, elf_header.e_ident[EI_VERSION],
83
         EV_CURRENT);
84
      return 0;
85
    }
86
 
87
  /* Return if e_machine is the same as output_elf_machine.  */
88
  if (output_elf_machine == elf_header.e_machine)
89
    return 1;
90
 
91
  class = elf_header.e_ident[EI_CLASS];
92
 
93
  /* Skip if class doesn't match. */
94
  if (input_elf_class != -1 && class != input_elf_class)
95
    {
96
      error
97
        (_("%s: Unmatched EI_CLASS: %d is not %d\n"),
98
         file_name, class, input_elf_class);
99
      return 0;
100
    }
101
 
102
  machine = elf_header.e_machine;
103
 
104
  /* Skip if e_machine doesn't match. */
105
  if (input_elf_machine != -1 && machine != input_elf_machine)
106
    {
107
      error
108
        (_("%s: Unmatched e_machine: %d is not %d\n"),
109
         file_name, machine, input_elf_machine);
110
      return 0;
111
    }
112
 
113
  type = elf_header.e_type;
114
 
115
  /* Skip if e_type doesn't match. */
116
  if (input_elf_type != -1 && type != input_elf_type)
117
    {
118
      error
119
        (_("%s: Unmatched e_type: %d is not %d\n"),
120
         file_name, type, input_elf_type);
121
      return 0;
122
    }
123
 
124
  osabi = elf_header.e_ident[EI_OSABI];
125
 
126
  /* Skip if OSABI doesn't match. */
127
  if (input_elf_osabi != -1 && osabi != input_elf_osabi)
128
    {
129
      error
130
        (_("%s: Unmatched EI_OSABI: %d is not %d\n"),
131
         file_name, osabi, input_elf_osabi);
132
      return 0;
133
    }
134
 
135
  /* Update e_machine, e_type and EI_OSABI.  */
136
  switch (class)
137
    {
138
    default:
139
      /* We should never get here.  */
140
      abort ();
141
      break;
142
    case ELFCLASS32:
143
      if (output_elf_machine != -1)
144
        BYTE_PUT (ehdr32.e_machine, output_elf_machine);
145
      if (output_elf_type != -1)
146
        BYTE_PUT (ehdr32.e_type, output_elf_type);
147
      if (output_elf_osabi != -1)
148
        ehdr32.e_ident[EI_OSABI] = output_elf_osabi;
149
      status = fwrite (&ehdr32, sizeof (ehdr32), 1, file) == 1;
150
      break;
151
    case ELFCLASS64:
152
      if (output_elf_machine != -1)
153
        BYTE_PUT (ehdr64.e_machine, output_elf_machine);
154
      if (output_elf_type != -1)
155
        BYTE_PUT (ehdr64.e_type, output_elf_type);
156
      if (output_elf_osabi != -1)
157
        ehdr64.e_ident[EI_OSABI] = output_elf_osabi;
158
      status = fwrite (&ehdr64, sizeof (ehdr64), 1, file) == 1;
159
      break;
160
    }
161
 
162
  if (status != 1)
163
    error (_("%s: Failed to update ELF header: %s\n"),
164
               file_name, strerror (errno));
165
 
166
  return status;
167
}
168
 
169
static int
170
get_file_header (FILE * file)
171
{
172
  /* Read in the identity array.  */
173
  if (fread (elf_header.e_ident, EI_NIDENT, 1, file) != 1)
174
    return 0;
175
 
176
  /* Determine how to read the rest of the header.  */
177
  switch (elf_header.e_ident[EI_DATA])
178
    {
179
    default: /* fall through */
180
    case ELFDATANONE: /* fall through */
181
    case ELFDATA2LSB:
182
      byte_get = byte_get_little_endian;
183
      byte_put = byte_put_little_endian;
184
      break;
185
    case ELFDATA2MSB:
186
      byte_get = byte_get_big_endian;
187
      byte_put = byte_put_big_endian;
188
      break;
189
    }
190
 
191
  /* Read in the rest of the header.  For now we only support 32 bit
192
     and 64 bit ELF files.  */
193
  switch (elf_header.e_ident[EI_CLASS])
194
    {
195
    default:
196
      error (_("Unsupported EI_CLASS: %d\n"),
197
                 elf_header.e_ident[EI_CLASS]);
198
      return 0;
199
 
200
    case ELFCLASS32:
201
      if (fread (ehdr32.e_type, sizeof (ehdr32) - EI_NIDENT,
202
                 1, file) != 1)
203
        return 0;
204
 
205
      elf_header.e_type      = BYTE_GET (ehdr32.e_type);
206
      elf_header.e_machine   = BYTE_GET (ehdr32.e_machine);
207
      elf_header.e_version   = BYTE_GET (ehdr32.e_version);
208
      elf_header.e_entry     = BYTE_GET (ehdr32.e_entry);
209
      elf_header.e_phoff     = BYTE_GET (ehdr32.e_phoff);
210
      elf_header.e_shoff     = BYTE_GET (ehdr32.e_shoff);
211
      elf_header.e_flags     = BYTE_GET (ehdr32.e_flags);
212
      elf_header.e_ehsize    = BYTE_GET (ehdr32.e_ehsize);
213
      elf_header.e_phentsize = BYTE_GET (ehdr32.e_phentsize);
214
      elf_header.e_phnum     = BYTE_GET (ehdr32.e_phnum);
215
      elf_header.e_shentsize = BYTE_GET (ehdr32.e_shentsize);
216
      elf_header.e_shnum     = BYTE_GET (ehdr32.e_shnum);
217
      elf_header.e_shstrndx  = BYTE_GET (ehdr32.e_shstrndx);
218
 
219
      memcpy (&ehdr32, &elf_header, EI_NIDENT);
220
      break;
221
 
222
    case ELFCLASS64:
223
      /* If we have been compiled with sizeof (bfd_vma) == 4, then
224
         we will not be able to cope with the 64bit data found in
225
         64 ELF files.  Detect this now and abort before we start
226
         overwriting things.  */
227
      if (sizeof (bfd_vma) < 8)
228
        {
229
          error (_("This executable has been built without support for a\n\
230
64 bit data type and so it cannot process 64 bit ELF files.\n"));
231
          return 0;
232
        }
233
 
234
      if (fread (ehdr64.e_type, sizeof (ehdr64) - EI_NIDENT,
235
                 1, file) != 1)
236
        return 0;
237
 
238
      elf_header.e_type      = BYTE_GET (ehdr64.e_type);
239
      elf_header.e_machine   = BYTE_GET (ehdr64.e_machine);
240
      elf_header.e_version   = BYTE_GET (ehdr64.e_version);
241
      elf_header.e_entry     = BYTE_GET (ehdr64.e_entry);
242
      elf_header.e_phoff     = BYTE_GET (ehdr64.e_phoff);
243
      elf_header.e_shoff     = BYTE_GET (ehdr64.e_shoff);
244
      elf_header.e_flags     = BYTE_GET (ehdr64.e_flags);
245
      elf_header.e_ehsize    = BYTE_GET (ehdr64.e_ehsize);
246
      elf_header.e_phentsize = BYTE_GET (ehdr64.e_phentsize);
247
      elf_header.e_phnum     = BYTE_GET (ehdr64.e_phnum);
248
      elf_header.e_shentsize = BYTE_GET (ehdr64.e_shentsize);
249
      elf_header.e_shnum     = BYTE_GET (ehdr64.e_shnum);
250
      elf_header.e_shstrndx  = BYTE_GET (ehdr64.e_shstrndx);
251
 
252
      memcpy (&ehdr64, &elf_header, EI_NIDENT);
253
      break;
254
    }
255
  return 1;
256
}
257
 
258
/* Process one ELF object file according to the command line options.
259
   This file may actually be stored in an archive.  The file is
260
   positioned at the start of the ELF object.  */
261
 
262
static int
263
process_object (const char *file_name, FILE *file)
264
{
265
  /* Rememeber where we are.  */
266
  long offset = ftell (file);
267
 
268
  if (! get_file_header (file))
269
    {
270
      error (_("%s: Failed to read ELF header\n"), file_name);
271
      return 1;
272
    }
273
 
274
  /* Go to the position of the ELF header.  */
275
  if (fseek (file, offset, SEEK_SET) != 0)
276
    {
277
      error (_("%s: Failed to seek to ELF header\n"), file_name);
278
    }
279
 
280
  if (! update_elf_header (file_name, file))
281
    return 1;
282
 
283
  return 0;
284
}
285
 
286
/* Process an ELF archive.
287
   On entry the file is positioned just after the ARMAG string.  */
288
 
289
static int
290
process_archive (const char * file_name, FILE * file,
291
                 bfd_boolean is_thin_archive)
292
{
293
  struct archive_info arch;
294
  struct archive_info nested_arch;
295
  size_t got;
296
  int ret;
297
 
298
  /* The ARCH structure is used to hold information about this archive.  */
299
  arch.file_name = NULL;
300
  arch.file = NULL;
301
  arch.index_array = NULL;
302
  arch.sym_table = NULL;
303
  arch.longnames = NULL;
304
 
305
  /* The NESTED_ARCH structure is used as a single-item cache of information
306
     about a nested archive (when members of a thin archive reside within
307
     another regular archive file).  */
308
  nested_arch.file_name = NULL;
309
  nested_arch.file = NULL;
310
  nested_arch.index_array = NULL;
311
  nested_arch.sym_table = NULL;
312
  nested_arch.longnames = NULL;
313
 
314
  if (setup_archive (&arch, file_name, file, is_thin_archive, FALSE) != 0)
315
    {
316
      ret = 1;
317
      goto out;
318
    }
319
 
320
  ret = 0;
321
 
322
  while (1)
323
    {
324
      char * name;
325
      size_t namelen;
326
      char * qualified_name;
327
 
328
      /* Read the next archive header.  */
329
      if (fseek (file, arch.next_arhdr_offset, SEEK_SET) != 0)
330
        {
331
          error (_("%s: failed to seek to next archive header\n"),
332
                     file_name);
333
          return 1;
334
        }
335
      got = fread (&arch.arhdr, 1, sizeof arch.arhdr, file);
336
      if (got != sizeof arch.arhdr)
337
        {
338
          if (got == 0)
339
            break;
340
          error (_("%s: failed to read archive header\n"),
341
                     file_name);
342
          ret = 1;
343
          break;
344
        }
345
      if (memcmp (arch.arhdr.ar_fmag, ARFMAG, 2) != 0)
346
        {
347
          error (_("%s: did not find a valid archive header\n"),
348
                     arch.file_name);
349
          ret = 1;
350
          break;
351
        }
352
 
353
      arch.next_arhdr_offset += sizeof arch.arhdr;
354
 
355
      archive_file_size = strtoul (arch.arhdr.ar_size, NULL, 10);
356
      if (archive_file_size & 01)
357
        ++archive_file_size;
358
 
359
      name = get_archive_member_name (&arch, &nested_arch);
360
      if (name == NULL)
361
        {
362
          error (_("%s: bad archive file name\n"), file_name);
363
          ret = 1;
364
          break;
365
        }
366
      namelen = strlen (name);
367
 
368
      qualified_name = make_qualified_name (&arch, &nested_arch, name);
369
      if (qualified_name == NULL)
370
        {
371
          error (_("%s: bad archive file name\n"), file_name);
372
          ret = 1;
373
          break;
374
        }
375
 
376
      if (is_thin_archive && arch.nested_member_origin == 0)
377
        {
378
          /* This is a proxy for an external member of a thin archive.  */
379
          FILE *member_file;
380
          char *member_file_name = adjust_relative_path (file_name,
381
                                                         name, namelen);
382
          if (member_file_name == NULL)
383
            {
384
              ret = 1;
385
              break;
386
            }
387
 
388
          member_file = fopen (member_file_name, "r+b");
389
          if (member_file == NULL)
390
            {
391
              error (_("Input file '%s' is not readable\n"),
392
                         member_file_name);
393
              free (member_file_name);
394
              ret = 1;
395
              break;
396
            }
397
 
398
          archive_file_offset = arch.nested_member_origin;
399
 
400
          ret |= process_object (qualified_name, member_file);
401
 
402
          fclose (member_file);
403
          free (member_file_name);
404
        }
405
      else if (is_thin_archive)
406
        {
407
          /* This is a proxy for a member of a nested archive.  */
408
          archive_file_offset = arch.nested_member_origin + sizeof arch.arhdr;
409
 
410
          /* The nested archive file will have been opened and setup by
411
             get_archive_member_name.  */
412
          if (fseek (nested_arch.file, archive_file_offset,
413
                     SEEK_SET) != 0)
414
            {
415
              error (_("%s: failed to seek to archive member\n"),
416
                         nested_arch.file_name);
417
              ret = 1;
418
              break;
419
            }
420
 
421
          ret |= process_object (qualified_name, nested_arch.file);
422
        }
423
      else
424
        {
425
          archive_file_offset = arch.next_arhdr_offset;
426
          arch.next_arhdr_offset += archive_file_size;
427
 
428
          ret |= process_object (qualified_name, file);
429
        }
430
 
431
      free (qualified_name);
432
    }
433
 
434
 out:
435
  if (nested_arch.file != NULL)
436
    fclose (nested_arch.file);
437
  release_archive (&nested_arch);
438
  release_archive (&arch);
439
 
440
  return ret;
441
}
442
 
443
static int
444
check_file (const char *file_name, struct stat *statbuf_p)
445
{
446
  struct stat statbuf;
447
 
448
  if (statbuf_p == NULL)
449
    statbuf_p = &statbuf;
450
 
451
  if (stat (file_name, statbuf_p) < 0)
452
    {
453
      if (errno == ENOENT)
454
        error (_("'%s': No such file\n"), file_name);
455
      else
456
        error (_("Could not locate '%s'.  System error message: %s\n"),
457
                   file_name, strerror (errno));
458
      return 1;
459
    }
460
 
461
  if (! S_ISREG (statbuf_p->st_mode))
462
    {
463
      error (_("'%s' is not an ordinary file\n"), file_name);
464
      return 1;
465
    }
466
 
467
  return 0;
468
}
469
 
470
static int
471
process_file (const char *file_name)
472
{
473
  FILE * file;
474
  char armag[SARMAG];
475
  int ret;
476
 
477
  if (check_file (file_name, NULL))
478
    return 1;
479
 
480
  file = fopen (file_name, "r+b");
481
  if (file == NULL)
482
    {
483
      error (_("Input file '%s' is not readable\n"), file_name);
484
      return 1;
485
    }
486
 
487
  if (fread (armag, SARMAG, 1, file) != 1)
488
    {
489
      error (_("%s: Failed to read file's magic number\n"),
490
                 file_name);
491
      fclose (file);
492
      return 1;
493
    }
494
 
495
  if (memcmp (armag, ARMAG, SARMAG) == 0)
496
    ret = process_archive (file_name, file, FALSE);
497
  else if (memcmp (armag, ARMAGT, SARMAG) == 0)
498
    ret = process_archive (file_name, file, TRUE);
499
  else
500
    {
501
      rewind (file);
502
      archive_file_size = archive_file_offset = 0;
503
      ret = process_object (file_name, file);
504
    }
505
 
506
  fclose (file);
507
 
508
  return ret;
509
}
510
 
511
static const struct
512
{
513
  int osabi;
514
  const char *name;
515
}
516
osabis[] =
517
{
518
  { ELFOSABI_NONE, "none" },
519
  { ELFOSABI_HPUX, "HPUX" },
520
  { ELFOSABI_NETBSD, "NetBSD" },
521
  { ELFOSABI_LINUX, "Linux" },
522
  { ELFOSABI_HURD, "Hurd" },
523
  { ELFOSABI_SOLARIS, "Solaris" },
524
  { ELFOSABI_AIX, "AIX" },
525
  { ELFOSABI_IRIX, "Irix" },
526
  { ELFOSABI_FREEBSD, "FreeBSD" },
527
  { ELFOSABI_TRU64, "TRU64" },
528
  { ELFOSABI_MODESTO, "Modesto" },
529
  { ELFOSABI_OPENBSD, "OpenBSD" },
530
  { ELFOSABI_OPENVMS, "OpenVMS" },
531
  { ELFOSABI_NSK, "NSK" },
532
  { ELFOSABI_AROS, "AROS" },
533
  { ELFOSABI_FENIXOS, "FenixOS" }
534
};
535
 
536
/* Return ELFOSABI_XXX for an OSABI string, OSABI.  */
537
 
538
static int
539
elf_osabi (const char *osabi)
540
{
541
  unsigned int i;
542
 
543
  for (i = 0; i < ARRAY_SIZE (osabis); i++)
544
    if (strcasecmp (osabi, osabis[i].name) == 0)
545
      return osabis[i].osabi;
546
 
547
  error (_("Unknown OSABI: %s\n"), osabi);
548
 
549
  return -1;
550
}
551
 
552
/* Return EM_XXX for a machine string, MACH.  */
553
 
554
static int
555
elf_machine (const char *mach)
556
{
557
  if (strcasecmp (mach, "l1om") == 0)
558
    return EM_L1OM;
559
  if (strcasecmp (mach, "x86_64") == 0)
560
    return EM_X86_64;
561
  if (strcasecmp (mach, "x86-64") == 0)
562
    return EM_X86_64;
563
  if (strcasecmp (mach, "none") == 0)
564
    return EM_NONE;
565
 
566
  error (_("Unknown machine type: %s\n"), mach);
567
 
568
  return -1;
569
}
570
 
571
/* Return ELF class for a machine type, MACH.  */
572
 
573
static int
574
elf_class (int mach)
575
{
576
  switch (mach)
577
    {
578
    case EM_L1OM:
579
    case EM_X86_64:
580
      return ELFCLASS64;
581
    case EM_NONE:
582
      return ELFCLASSNONE;
583
    default:
584
      error (_("Unknown machine type: %d\n"), mach);
585
      return -1;
586
    }
587
}
588
 
589
/* Return ET_XXX for a type string, TYPE.  */
590
 
591
static int
592
elf_type (const char *type)
593
{
594
  if (strcasecmp (type, "rel") == 0)
595
    return ET_REL;
596
  if (strcasecmp (type, "exec") == 0)
597
    return ET_EXEC;
598
  if (strcasecmp (type, "dyn") == 0)
599
    return ET_DYN;
600
  if (strcasecmp (type, "none") == 0)
601
    return ET_NONE;
602
 
603
  error (_("Unknown type: %s\n"), type);
604
 
605
  return -1;
606
}
607
 
608
enum command_line_switch
609
  {
610
    OPTION_INPUT_MACH = 150,
611
    OPTION_OUTPUT_MACH,
612
    OPTION_INPUT_TYPE,
613
    OPTION_OUTPUT_TYPE,
614
    OPTION_INPUT_OSABI,
615
    OPTION_OUTPUT_OSABI
616
  };
617
 
618
static struct option options[] =
619
{
620
  {"input-mach",        required_argument, 0, OPTION_INPUT_MACH},
621
  {"output-mach",       required_argument, 0, OPTION_OUTPUT_MACH},
622
  {"input-type",        required_argument, 0, OPTION_INPUT_TYPE},
623
  {"output-type",       required_argument, 0, OPTION_OUTPUT_TYPE},
624
  {"input-osabi",       required_argument, 0, OPTION_INPUT_OSABI},
625
  {"output-osabi",      required_argument, 0, OPTION_OUTPUT_OSABI},
626
  {"version",           no_argument, 0, 'v'},
627
  {"help",              no_argument, 0, 'h'},
628
  {0,                    no_argument, 0, 0}
629
};
630
 
631
static void
632
usage (FILE *stream, int exit_status)
633
{
634
  fprintf (stream, _("Usage: %s <option(s)> elffile(s)\n"),
635
           program_name);
636
  fprintf (stream, _(" Update the ELF header of ELF files\n"));
637
  fprintf (stream, _(" The options are:\n"));
638
  fprintf (stream, _("\
639
  --input-mach <machine>      Set input machine type to <machine>\n\
640
  --output-mach <machine>     Set output machine type to <machine>\n\
641
  --input-type <type>         Set input file type to <type>\n\
642
  --output-type <type>        Set output file type to <type>\n\
643
  --input-osabi <osabi>       Set input OSABI to <osabi>\n\
644
  --output-osabi <osabi>      Set output OSABI to <osabi>\n\
645
  -h --help                   Display this information\n\
646
  -v --version                Display the version number of %s\n\
647
"),
648
           program_name);
649
  if (REPORT_BUGS_TO[0] && exit_status == 0)
650
    fprintf (stream, _("Report bugs to %s\n"), REPORT_BUGS_TO);
651
  exit (exit_status);
652
}
653
 
654
int
655
main (int argc, char ** argv)
656
{
657
  int c, status;
658
 
659
#if defined (HAVE_SETLOCALE) && defined (HAVE_LC_MESSAGES)
660
  setlocale (LC_MESSAGES, "");
661
#endif
662
#if defined (HAVE_SETLOCALE)
663
  setlocale (LC_CTYPE, "");
664
#endif
665
  bindtextdomain (PACKAGE, LOCALEDIR);
666
  textdomain (PACKAGE);
667
 
668
  expandargv (&argc, &argv);
669
 
670
  while ((c = getopt_long (argc, argv, "hv",
671
                           options, (int *) 0)) != EOF)
672
    {
673
      switch (c)
674
        {
675
        case OPTION_INPUT_MACH:
676
          input_elf_machine = elf_machine (optarg);
677
          if (input_elf_machine < 0)
678
            return 1;
679
          input_elf_class = elf_class (input_elf_machine);
680
          if (input_elf_class < 0)
681
            return 1;
682
          break;
683
 
684
        case OPTION_OUTPUT_MACH:
685
          output_elf_machine = elf_machine (optarg);
686
          if (output_elf_machine < 0)
687
            return 1;
688
          break;
689
 
690
        case OPTION_INPUT_TYPE:
691
          input_elf_type = elf_type (optarg);
692
          if (input_elf_type < 0)
693
            return 1;
694
          break;
695
 
696
        case OPTION_OUTPUT_TYPE:
697
          output_elf_type = elf_type (optarg);
698
          if (output_elf_type < 0)
699
            return 1;
700
          break;
701
 
702
        case OPTION_INPUT_OSABI:
703
          input_elf_osabi = elf_osabi (optarg);
704
          if (input_elf_osabi < 0)
705
            return 1;
706
          break;
707
 
708
        case OPTION_OUTPUT_OSABI:
709
          output_elf_osabi = elf_osabi (optarg);
710
          if (output_elf_osabi < 0)
711
            return 1;
712
          break;
713
 
714
        case 'h':
715
          usage (stdout, 0);
716
 
717
        case 'v':
718
          print_version (program_name);
719
          break;
720
 
721
        default:
722
          usage (stderr, 1);
723
        }
724
    }
725
 
726
  if (optind == argc
727
      || (output_elf_machine == -1
728
          && output_elf_type == -1
729
          && output_elf_osabi == -1))
730
    usage (stderr, 1);
731
 
732
  status = 0;
733
  while (optind < argc)
734
    status |= process_file (argv[optind++]);
735
 
736
  return status;
737
}

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