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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [bfd/] [coff-i386.c] - Blame information for rev 298

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1 24 jeremybenn
/* BFD back-end for Intel 386 COFF files.
2
   Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 225 jeremybenn
   2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
4 24 jeremybenn
   Free Software Foundation, Inc.
5
   Written by Cygnus Support.
6
 
7
   This file is part of BFD, the Binary File Descriptor library.
8
 
9
   This program is free software; you can redistribute it and/or modify
10
   it under the terms of the GNU General Public License as published by
11
   the Free Software Foundation; either version 3 of the License, or
12
   (at your option) any later version.
13
 
14
   This program is distributed in the hope that it will be useful,
15
   but WITHOUT ANY WARRANTY; without even the implied warranty of
16
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17
   GNU General Public License for more details.
18
 
19
   You should have received a copy of the GNU General Public License
20
   along with this program; if not, write to the Free Software
21
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22
   MA 02110-1301, USA.  */
23
 
24
#include "sysdep.h"
25
#include "bfd.h"
26
#include "libbfd.h"
27
 
28
#include "coff/i386.h"
29
 
30
#include "coff/internal.h"
31
 
32
#ifdef COFF_WITH_PE
33
#include "coff/pe.h"
34
#endif
35
 
36
#ifdef COFF_GO32_EXE
37
#include "coff/go32exe.h"
38
#endif
39
 
40 225 jeremybenn
#ifndef bfd_pe_print_pdata
41
#define bfd_pe_print_pdata      NULL
42
#endif
43
 
44 24 jeremybenn
#include "libcoff.h"
45
 
46
static bfd_reloc_status_type coff_i386_reloc
47
  PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
48
static reloc_howto_type *coff_i386_rtype_to_howto
49
  PARAMS ((bfd *, asection *, struct internal_reloc *,
50
           struct coff_link_hash_entry *, struct internal_syment *,
51
           bfd_vma *));
52
static reloc_howto_type *coff_i386_reloc_type_lookup
53
  PARAMS ((bfd *, bfd_reloc_code_real_type));
54
 
55
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
56
/* The page size is a guess based on ELF.  */
57
 
58
#define COFF_PAGE_SIZE 0x1000
59
 
60
/* For some reason when using i386 COFF the value stored in the .text
61
   section for a reference to a common symbol is the value itself plus
62
   any desired offset.  Ian Taylor, Cygnus Support.  */
63
 
64
/* If we are producing relocatable output, we need to do some
65
   adjustments to the object file that are not done by the
66
   bfd_perform_relocation function.  This function is called by every
67
   reloc type to make any required adjustments.  */
68
 
69
static bfd_reloc_status_type
70
coff_i386_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd,
71
                 error_message)
72
     bfd *abfd;
73
     arelent *reloc_entry;
74
     asymbol *symbol;
75
     PTR data;
76
     asection *input_section ATTRIBUTE_UNUSED;
77
     bfd *output_bfd;
78
     char **error_message ATTRIBUTE_UNUSED;
79
{
80
  symvalue diff;
81
 
82
#ifndef COFF_WITH_PE
83
  if (output_bfd == (bfd *) NULL)
84
    return bfd_reloc_continue;
85
#endif
86
 
87
  if (bfd_is_com_section (symbol->section))
88
    {
89
#ifndef COFF_WITH_PE
90
      /* We are relocating a common symbol.  The current value in the
91
         object file is ORIG + OFFSET, where ORIG is the value of the
92
         common symbol as seen by the object file when it was compiled
93
         (this may be zero if the symbol was undefined) and OFFSET is
94
         the offset into the common symbol (normally zero, but may be
95
         non-zero when referring to a field in a common structure).
96
         ORIG is the negative of reloc_entry->addend, which is set by
97
         the CALC_ADDEND macro below.  We want to replace the value in
98
         the object file with NEW + OFFSET, where NEW is the value of
99
         the common symbol which we are going to put in the final
100
         object file.  NEW is symbol->value.  */
101
      diff = symbol->value + reloc_entry->addend;
102
#else
103
      /* In PE mode, we do not offset the common symbol.  */
104
      diff = reloc_entry->addend;
105
#endif
106
    }
107
  else
108
    {
109
      /* For some reason bfd_perform_relocation always effectively
110
         ignores the addend for a COFF target when producing
111
         relocatable output.  This seems to be always wrong for 386
112
         COFF, so we handle the addend here instead.  */
113
#ifdef COFF_WITH_PE
114
      if (output_bfd == (bfd *) NULL)
115
        {
116
          reloc_howto_type *howto = reloc_entry->howto;
117
 
118
          /* Although PC relative relocations are very similar between
119
             PE and non-PE formats, but they are off by 1 << howto->size
120
             bytes. For the external relocation, PE is very different
121
             from others. See md_apply_fix3 () in gas/config/tc-i386.c.
122
             When we link PE and non-PE object files together to
123
             generate a non-PE executable, we have to compensate it
124
             here.  */
125
          if (howto->pc_relative && howto->pcrel_offset)
126
            diff = -(1 << howto->size);
127
          else if (symbol->flags & BSF_WEAK)
128
            diff = reloc_entry->addend - symbol->value;
129
          else
130
            diff = -reloc_entry->addend;
131
        }
132
      else
133
#endif
134
        diff = reloc_entry->addend;
135
    }
136
 
137
#ifdef COFF_WITH_PE
138
  /* FIXME: How should this case be handled?  */
139
  if (reloc_entry->howto->type == R_IMAGEBASE
140
      && output_bfd != NULL
141
      && bfd_get_flavour(output_bfd) == bfd_target_coff_flavour)
142
    diff -= pe_data (output_bfd)->pe_opthdr.ImageBase;
143
#endif
144
 
145
#define DOIT(x) \
146
  x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
147
 
148
    if (diff != 0)
149
      {
150
        reloc_howto_type *howto = reloc_entry->howto;
151
        unsigned char *addr = (unsigned char *) data + reloc_entry->address;
152
 
153
        switch (howto->size)
154
          {
155
          case 0:
156
            {
157
              char x = bfd_get_8 (abfd, addr);
158
              DOIT (x);
159
              bfd_put_8 (abfd, x, addr);
160
            }
161
            break;
162
 
163
          case 1:
164
            {
165
              short x = bfd_get_16 (abfd, addr);
166
              DOIT (x);
167
              bfd_put_16 (abfd, (bfd_vma) x, addr);
168
            }
169
            break;
170
 
171
          case 2:
172
            {
173
              long x = bfd_get_32 (abfd, addr);
174
              DOIT (x);
175
              bfd_put_32 (abfd, (bfd_vma) x, addr);
176
            }
177
            break;
178
 
179
          default:
180
            abort ();
181
          }
182
      }
183
 
184
  /* Now let bfd_perform_relocation finish everything up.  */
185
  return bfd_reloc_continue;
186
}
187
 
188
#ifdef COFF_WITH_PE
189
/* Return TRUE if this relocation should appear in the output .reloc
190
   section.  */
191
 
192
static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *));
193
 
194
static bfd_boolean in_reloc_p (abfd, howto)
195
     bfd * abfd ATTRIBUTE_UNUSED;
196
     reloc_howto_type *howto;
197
{
198
  return ! howto->pc_relative && howto->type != R_IMAGEBASE;
199
}
200
#endif /* COFF_WITH_PE */
201
 
202
#ifndef PCRELOFFSET
203
#define PCRELOFFSET FALSE
204
#endif
205
 
206
static reloc_howto_type howto_table[] =
207
{
208
  EMPTY_HOWTO (0),
209
  EMPTY_HOWTO (1),
210
  EMPTY_HOWTO (2),
211
  EMPTY_HOWTO (3),
212
  EMPTY_HOWTO (4),
213
  EMPTY_HOWTO (5),
214
  HOWTO (R_DIR32,               /* type */
215
         0,                      /* rightshift */
216
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
217
         32,                    /* bitsize */
218
         FALSE,                 /* pc_relative */
219
         0,                      /* bitpos */
220
         complain_overflow_bitfield, /* complain_on_overflow */
221
         coff_i386_reloc,       /* special_function */
222
         "dir32",               /* name */
223
         TRUE,                  /* partial_inplace */
224
         0xffffffff,            /* src_mask */
225
         0xffffffff,            /* dst_mask */
226
         TRUE),                 /* pcrel_offset */
227
  /* PE IMAGE_REL_I386_DIR32NB relocation (7).  */
228
  HOWTO (R_IMAGEBASE,           /* type */
229
         0,                      /* rightshift */
230
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
231
         32,                    /* bitsize */
232
         FALSE,                 /* pc_relative */
233
         0,                      /* bitpos */
234
         complain_overflow_bitfield, /* complain_on_overflow */
235
         coff_i386_reloc,       /* special_function */
236
         "rva32",               /* name */
237
         TRUE,                  /* partial_inplace */
238
         0xffffffff,            /* src_mask */
239
         0xffffffff,            /* dst_mask */
240
         FALSE),                /* pcrel_offset */
241
  EMPTY_HOWTO (010),
242
  EMPTY_HOWTO (011),
243
  EMPTY_HOWTO (012),
244
#ifdef COFF_WITH_PE
245
  /* 32-bit longword section relative relocation (013).  */
246
  HOWTO (R_SECREL32,            /* type */
247
         0,                      /* rightshift */
248
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
249
         32,                    /* bitsize */
250
         FALSE,                 /* pc_relative */
251
         0,                      /* bitpos */
252
         complain_overflow_bitfield, /* complain_on_overflow */
253
         coff_i386_reloc,       /* special_function */
254
         "secrel32",            /* name */
255
         TRUE,                  /* partial_inplace */
256
         0xffffffff,            /* src_mask */
257
         0xffffffff,            /* dst_mask */
258
         TRUE),                 /* pcrel_offset */
259
#else
260
  EMPTY_HOWTO (013),
261
#endif
262
  EMPTY_HOWTO (014),
263
  EMPTY_HOWTO (015),
264
  EMPTY_HOWTO (016),
265
  /* Byte relocation (017).  */
266
  HOWTO (R_RELBYTE,             /* type */
267
         0,                      /* rightshift */
268
         0,                      /* size (0 = byte, 1 = short, 2 = long) */
269
         8,                     /* bitsize */
270
         FALSE,                 /* pc_relative */
271
         0,                      /* bitpos */
272
         complain_overflow_bitfield, /* complain_on_overflow */
273
         coff_i386_reloc,       /* special_function */
274
         "8",                   /* name */
275
         TRUE,                  /* partial_inplace */
276
         0x000000ff,            /* src_mask */
277
         0x000000ff,            /* dst_mask */
278
         PCRELOFFSET),          /* pcrel_offset */
279
  /* 16-bit word relocation (020).  */
280
  HOWTO (R_RELWORD,             /* type */
281
         0,                      /* rightshift */
282
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
283
         16,                    /* bitsize */
284
         FALSE,                 /* pc_relative */
285
         0,                      /* bitpos */
286
         complain_overflow_bitfield, /* complain_on_overflow */
287
         coff_i386_reloc,       /* special_function */
288
         "16",                  /* name */
289
         TRUE,                  /* partial_inplace */
290
         0x0000ffff,            /* src_mask */
291
         0x0000ffff,            /* dst_mask */
292
         PCRELOFFSET),          /* pcrel_offset */
293
  /* 32-bit longword relocation (021).  */
294
  HOWTO (R_RELLONG,             /* type */
295
         0,                      /* rightshift */
296
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
297
         32,                    /* bitsize */
298
         FALSE,                 /* pc_relative */
299
         0,                      /* bitpos */
300
         complain_overflow_bitfield, /* complain_on_overflow */
301
         coff_i386_reloc,       /* special_function */
302
         "32",                  /* name */
303
         TRUE,                  /* partial_inplace */
304
         0xffffffff,            /* src_mask */
305
         0xffffffff,            /* dst_mask */
306
         PCRELOFFSET),          /* pcrel_offset */
307
  /* Byte PC relative relocation (022).  */
308
  HOWTO (R_PCRBYTE,             /* type */
309
         0,                      /* rightshift */
310
         0,                      /* size (0 = byte, 1 = short, 2 = long) */
311
         8,                     /* bitsize */
312
         TRUE,                  /* pc_relative */
313
         0,                      /* bitpos */
314
         complain_overflow_signed, /* complain_on_overflow */
315
         coff_i386_reloc,       /* special_function */
316
         "DISP8",               /* name */
317
         TRUE,                  /* partial_inplace */
318
         0x000000ff,            /* src_mask */
319
         0x000000ff,            /* dst_mask */
320
         PCRELOFFSET),          /* pcrel_offset */
321
  /* 16-bit word PC relative relocation (023).  */
322
  HOWTO (R_PCRWORD,             /* type */
323
         0,                      /* rightshift */
324
         1,                     /* size (0 = byte, 1 = short, 2 = long) */
325
         16,                    /* bitsize */
326
         TRUE,                  /* pc_relative */
327
         0,                      /* bitpos */
328
         complain_overflow_signed, /* complain_on_overflow */
329
         coff_i386_reloc,       /* special_function */
330
         "DISP16",              /* name */
331
         TRUE,                  /* partial_inplace */
332
         0x0000ffff,            /* src_mask */
333
         0x0000ffff,            /* dst_mask */
334
         PCRELOFFSET),          /* pcrel_offset */
335
  /* 32-bit longword PC relative relocation (024).  */
336
  HOWTO (R_PCRLONG,             /* type */
337
         0,                      /* rightshift */
338
         2,                     /* size (0 = byte, 1 = short, 2 = long) */
339
         32,                    /* bitsize */
340
         TRUE,                  /* pc_relative */
341
         0,                      /* bitpos */
342
         complain_overflow_signed, /* complain_on_overflow */
343
         coff_i386_reloc,       /* special_function */
344
         "DISP32",              /* name */
345
         TRUE,                  /* partial_inplace */
346
         0xffffffff,            /* src_mask */
347
         0xffffffff,            /* dst_mask */
348
         PCRELOFFSET)           /* pcrel_offset */
349
};
350
 
351
/* Turn a howto into a reloc  nunmber */
352
 
353
#define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
354
#define BADMAG(x) I386BADMAG(x)
355
#define I386 1                  /* Customize coffcode.h */
356
 
357
#define RTYPE2HOWTO(cache_ptr, dst)                                     \
358
  ((cache_ptr)->howto =                                                 \
359
   ((dst)->r_type < sizeof (howto_table) / sizeof (howto_table[0])       \
360
    ? howto_table + (dst)->r_type                                       \
361
    : NULL))
362
 
363
/* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared
364
   library.  On some other COFF targets STYP_BSS is normally
365
   STYP_NOLOAD.  */
366
#define BSS_NOLOAD_IS_SHARED_LIBRARY
367
 
368
/* Compute the addend of a reloc.  If the reloc is to a common symbol,
369
   the object file contains the value of the common symbol.  By the
370
   time this is called, the linker may be using a different symbol
371
   from a different object file with a different value.  Therefore, we
372
   hack wildly to locate the original symbol from this file so that we
373
   can make the correct adjustment.  This macro sets coffsym to the
374
   symbol from the original file, and uses it to set the addend value
375
   correctly.  If this is not a common symbol, the usual addend
376
   calculation is done, except that an additional tweak is needed for
377
   PC relative relocs.
378
   FIXME: This macro refers to symbols and asect; these are from the
379
   calling function, not the macro arguments.  */
380
 
381
#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr)                \
382
  {                                                             \
383
    coff_symbol_type *coffsym = (coff_symbol_type *) NULL;      \
384
    if (ptr && bfd_asymbol_bfd (ptr) != abfd)                   \
385
      coffsym = (obj_symbols (abfd)                             \
386
                 + (cache_ptr->sym_ptr_ptr - symbols));         \
387
    else if (ptr)                                               \
388
      coffsym = coff_symbol_from (abfd, ptr);                   \
389
    if (coffsym != (coff_symbol_type *) NULL                    \
390
        && coffsym->native->u.syment.n_scnum == 0)               \
391
      cache_ptr->addend = - coffsym->native->u.syment.n_value;  \
392
    else if (ptr && bfd_asymbol_bfd (ptr) == abfd               \
393
             && ptr->section != (asection *) NULL)              \
394
      cache_ptr->addend = - (ptr->section->vma + ptr->value);   \
395
    else                                                        \
396
      cache_ptr->addend = 0;                                     \
397
    if (ptr && howto_table[reloc.r_type].pc_relative)           \
398
      cache_ptr->addend += asect->vma;                          \
399
  }
400
 
401
/* We use the special COFF backend linker.  For normal i386 COFF, we
402
   can use the generic relocate_section routine.  For PE, we need our
403
   own routine.  */
404
 
405
#ifndef COFF_WITH_PE
406
 
407
#define coff_relocate_section _bfd_coff_generic_relocate_section
408
 
409
#else /* COFF_WITH_PE */
410
 
411
/* The PE relocate section routine.  The only difference between this
412
   and the regular routine is that we don't want to do anything for a
413
   relocatable link.  */
414
 
415
static bfd_boolean coff_pe_i386_relocate_section
416
  PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
417
           struct internal_reloc *, struct internal_syment *, asection **));
418
 
419
static bfd_boolean
420
coff_pe_i386_relocate_section (output_bfd, info, input_bfd,
421
                               input_section, contents, relocs, syms,
422
                               sections)
423
     bfd *output_bfd;
424
     struct bfd_link_info *info;
425
     bfd *input_bfd;
426
     asection *input_section;
427
     bfd_byte *contents;
428
     struct internal_reloc *relocs;
429
     struct internal_syment *syms;
430
     asection **sections;
431
{
432
  if (info->relocatable)
433
    return TRUE;
434
 
435
  return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd,
436
                                             input_section, contents,
437
                                             relocs, syms, sections);
438
}
439
 
440
#define coff_relocate_section coff_pe_i386_relocate_section
441
 
442
#endif /* COFF_WITH_PE */
443
 
444
/* Convert an rtype to howto for the COFF backend linker.  */
445
 
446
static reloc_howto_type *
447
coff_i386_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
448
     bfd *abfd ATTRIBUTE_UNUSED;
449
     asection *sec;
450
     struct internal_reloc *rel;
451
     struct coff_link_hash_entry *h;
452
     struct internal_syment *sym;
453
     bfd_vma *addendp;
454
{
455
  reloc_howto_type *howto;
456
 
457
  if (rel->r_type >= sizeof (howto_table) / sizeof (howto_table[0]))
458
    {
459
      bfd_set_error (bfd_error_bad_value);
460
      return NULL;
461
    }
462
 
463
  howto = howto_table + rel->r_type;
464
 
465
#ifdef COFF_WITH_PE
466
  /* Cancel out code in _bfd_coff_generic_relocate_section.  */
467
  *addendp = 0;
468
#endif
469
 
470
  if (howto->pc_relative)
471
    *addendp += sec->vma;
472
 
473
  if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
474
    {
475
      /* This is a common symbol.  The section contents include the
476
         size (sym->n_value) as an addend.  The relocate_section
477
         function will be adding in the final value of the symbol.  We
478
         need to subtract out the current size in order to get the
479
         correct result.  */
480
 
481
      BFD_ASSERT (h != NULL);
482
 
483
#ifndef COFF_WITH_PE
484
      /* I think we *do* want to bypass this.  If we don't, I have
485
         seen some data parameters get the wrong relocation address.
486
         If I link two versions with and without this section bypassed
487
         and then do a binary comparison, the addresses which are
488
         different can be looked up in the map.  The case in which
489
         this section has been bypassed has addresses which correspond
490
         to values I can find in the map.  */
491
      *addendp -= sym->n_value;
492
#endif
493
    }
494
 
495
#ifndef COFF_WITH_PE
496
  /* If the output symbol is common (in which case this must be a
497
     relocatable link), we need to add in the final size of the
498
     common symbol.  */
499
  if (h != NULL && h->root.type == bfd_link_hash_common)
500
    *addendp += h->root.u.c.size;
501
#endif
502
 
503
#ifdef COFF_WITH_PE
504
  if (howto->pc_relative)
505
    {
506
      *addendp -= 4;
507
 
508
      /* If the symbol is defined, then the generic code is going to
509
         add back the symbol value in order to cancel out an
510
         adjustment it made to the addend.  However, we set the addend
511
         to 0 at the start of this function.  We need to adjust here,
512
         to avoid the adjustment the generic code will make.  FIXME:
513
         This is getting a bit hackish.  */
514
      if (sym != NULL && sym->n_scnum != 0)
515
        *addendp -= sym->n_value;
516
    }
517
 
518
  if (rel->r_type == R_IMAGEBASE
519
      && (bfd_get_flavour(sec->output_section->owner)
520
          == bfd_target_coff_flavour))
521
    {
522
      *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
523
    }
524
 
525
  BFD_ASSERT (sym != NULL);
526
  if (rel->r_type == R_SECREL32 && sym != NULL)
527
    {
528
      bfd_vma osect_vma;
529
 
530
      if (h && (h->type == bfd_link_hash_defined
531
                || h->type == bfd_link_hash_defweak))
532
        osect_vma = h->root.u.def.section->output_section->vma;
533
      else
534
        {
535
          asection *sec;
536
          int i;
537
 
538
          /* Sigh, the only way to get the section to offset against
539
             is to find it the hard way.  */
540
 
541
          for (sec = abfd->sections, i = 1; i < sym->n_scnum; i++)
542
            sec = sec->next;
543
 
544
          osect_vma = sec->output_section->vma;
545
        }
546
 
547
      *addendp -= osect_vma;
548
    }
549
#endif
550
 
551
  return howto;
552
}
553
 
554
#define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup
555
#define coff_bfd_reloc_name_lookup coff_i386_reloc_name_lookup
556
 
557
static reloc_howto_type *
558
coff_i386_reloc_type_lookup (abfd, code)
559
     bfd *abfd ATTRIBUTE_UNUSED;
560
     bfd_reloc_code_real_type code;
561
{
562
  switch (code)
563
    {
564
    case BFD_RELOC_RVA:
565
      return howto_table + R_IMAGEBASE;
566
    case BFD_RELOC_32:
567
      return howto_table + R_DIR32;
568
    case BFD_RELOC_32_PCREL:
569
      return howto_table + R_PCRLONG;
570
    case BFD_RELOC_16:
571
      return howto_table + R_RELWORD;
572
    case BFD_RELOC_16_PCREL:
573
      return howto_table + R_PCRWORD;
574
    case BFD_RELOC_8:
575
      return howto_table + R_RELBYTE;
576
    case BFD_RELOC_8_PCREL:
577
      return howto_table + R_PCRBYTE;
578
#ifdef COFF_WITH_PE
579
    case BFD_RELOC_32_SECREL:
580
      return howto_table + R_SECREL32;
581
#endif
582
    default:
583
      BFD_FAIL ();
584
      return 0;
585
    }
586
}
587
 
588
static reloc_howto_type *
589
coff_i386_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
590
                             const char *r_name)
591
{
592
  unsigned int i;
593
 
594
  for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++)
595
    if (howto_table[i].name != NULL
596
        && strcasecmp (howto_table[i].name, r_name) == 0)
597
      return &howto_table[i];
598
 
599
  return NULL;
600
}
601
 
602
#define coff_rtype_to_howto coff_i386_rtype_to_howto
603
 
604
#ifdef TARGET_UNDERSCORE
605
 
606
/* If i386 gcc uses underscores for symbol names, then it does not use
607
   a leading dot for local labels, so if TARGET_UNDERSCORE is defined
608
   we treat all symbols starting with L as local.  */
609
 
610
static bfd_boolean coff_i386_is_local_label_name
611
  PARAMS ((bfd *, const char *));
612
 
613
static bfd_boolean
614
coff_i386_is_local_label_name (abfd, name)
615
     bfd *abfd;
616
     const char *name;
617
{
618
  if (name[0] == 'L')
619
    return TRUE;
620
 
621
  return _bfd_coff_is_local_label_name (abfd, name);
622
}
623
 
624
#define coff_bfd_is_local_label_name coff_i386_is_local_label_name
625
 
626
#endif /* TARGET_UNDERSCORE */
627
 
628
#include "coffcode.h"
629
 
630
const bfd_target
631
#ifdef TARGET_SYM
632
  TARGET_SYM =
633
#else
634
  i386coff_vec =
635
#endif
636
{
637
#ifdef TARGET_NAME
638
  TARGET_NAME,
639
#else
640
  "coff-i386",                  /* name */
641
#endif
642
  bfd_target_coff_flavour,
643
  BFD_ENDIAN_LITTLE,            /* data byte order is little */
644
  BFD_ENDIAN_LITTLE,            /* header byte order is little */
645
 
646
  (HAS_RELOC | EXEC_P |         /* object flags */
647
   HAS_LINENO | HAS_DEBUG |
648
   HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
649
 
650
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
651
#ifdef COFF_WITH_PE
652
   | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY
653
#endif
654
   | SEC_CODE | SEC_DATA),
655
 
656
#ifdef TARGET_UNDERSCORE
657
  TARGET_UNDERSCORE,            /* leading underscore */
658
#else
659
  0,                             /* leading underscore */
660
#endif
661
  '/',                          /* ar_pad_char */
662
  15,                           /* ar_max_namelen */
663
 
664
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
665
     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
666
     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
667
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
668
     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
669
     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
670
 
671
/* Note that we allow an object file to be treated as a core file as well.  */
672
    {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
673
       bfd_generic_archive_p, coff_object_p},
674
    {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
675
       bfd_false},
676
    {bfd_false, coff_write_object_contents, /* bfd_write_contents */
677
       _bfd_write_archive_contents, bfd_false},
678
 
679
     BFD_JUMP_TABLE_GENERIC (coff),
680
     BFD_JUMP_TABLE_COPY (coff),
681
     BFD_JUMP_TABLE_CORE (_bfd_nocore),
682
     BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
683
     BFD_JUMP_TABLE_SYMBOLS (coff),
684
     BFD_JUMP_TABLE_RELOCS (coff),
685
     BFD_JUMP_TABLE_WRITE (coff),
686
     BFD_JUMP_TABLE_LINK (coff),
687
     BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
688
 
689
  NULL,
690
 
691
  COFF_SWAP_TABLE
692
};

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