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5197 serge 1
/* BFD back-end for Intel 386 COFF files.
6324 serge 2
   Copyright (C) 1990-2015 Free Software Foundation, Inc.
5197 serge 3
   Written by Cygnus Support.
4
 
5
   This file is part of BFD, the Binary File Descriptor library.
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,
20
   MA 02110-1301, USA.  */
21
 
22
#include "sysdep.h"
23
#include "bfd.h"
24
#include "libbfd.h"
25
 
26
#include "coff/i386.h"
27
 
28
#include "coff/internal.h"
29
 
30
#ifdef COFF_WITH_PE
31
#include "coff/pe.h"
32
#endif
33
 
34
#ifdef COFF_GO32_EXE
35
#include "coff/go32exe.h"
36
#endif
37
 
38
#ifndef bfd_pe_print_pdata
39
#define bfd_pe_print_pdata	NULL
40
#endif
41
 
42
#include "libcoff.h"
43
 
44
static reloc_howto_type *coff_i386_rtype_to_howto
45
  (bfd *, asection *, struct internal_reloc *,
46
   struct coff_link_hash_entry *, struct internal_syment *,
47
   bfd_vma *);
48
static reloc_howto_type *coff_i386_reloc_type_lookup
49
  (bfd *, bfd_reloc_code_real_type);
50
 
51
#define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2)
52
/* The page size is a guess based on ELF.  */
53
 
54
#define COFF_PAGE_SIZE 0x1000
55
 
56
/* For some reason when using i386 COFF the value stored in the .text
57
   section for a reference to a common symbol is the value itself plus
58
   any desired offset.  Ian Taylor, Cygnus Support.  */
59
 
60
/* If we are producing relocatable output, we need to do some
61
   adjustments to the object file that are not done by the
62
   bfd_perform_relocation function.  This function is called by every
63
   reloc type to make any required adjustments.  */
64
 
65
static bfd_reloc_status_type
66
coff_i386_reloc (bfd *abfd,
67
		 arelent *reloc_entry,
68
		 asymbol *symbol,
69
		 void * data,
70
		 asection *input_section ATTRIBUTE_UNUSED,
71
		 bfd *output_bfd,
72
		 char **error_message ATTRIBUTE_UNUSED)
73
{
74
  symvalue diff;
75
 
76
#ifndef COFF_WITH_PE
77
  if (output_bfd == (bfd *) NULL)
78
    return bfd_reloc_continue;
79
#endif
80
 
81
  if (bfd_is_com_section (symbol->section))
82
    {
83
#ifndef COFF_WITH_PE
84
      /* We are relocating a common symbol.  The current value in the
85
	 object file is ORIG + OFFSET, where ORIG is the value of the
86
	 common symbol as seen by the object file when it was compiled
87
	 (this may be zero if the symbol was undefined) and OFFSET is
88
	 the offset into the common symbol (normally zero, but may be
89
	 non-zero when referring to a field in a common structure).
90
	 ORIG is the negative of reloc_entry->addend, which is set by
91
	 the CALC_ADDEND macro below.  We want to replace the value in
92
	 the object file with NEW + OFFSET, where NEW is the value of
93
	 the common symbol which we are going to put in the final
94
	 object file.  NEW is symbol->value.  */
95
      diff = symbol->value + reloc_entry->addend;
96
#else
97
      /* In PE mode, we do not offset the common symbol.  */
98
      diff = reloc_entry->addend;
99
#endif
100
    }
101
  else
102
    {
103
      /* For some reason bfd_perform_relocation always effectively
104
	 ignores the addend for a COFF target when producing
105
	 relocatable output.  This seems to be always wrong for 386
106
	 COFF, so we handle the addend here instead.  */
107
#ifdef COFF_WITH_PE
108
      if (output_bfd == (bfd *) NULL)
109
	{
110
	  reloc_howto_type *howto = reloc_entry->howto;
111
 
112
	  /* Although PC relative relocations are very similar between
113
	     PE and non-PE formats, but they are off by 1 << howto->size
114
	     bytes. For the external relocation, PE is very different
115
	     from others. See md_apply_fix3 () in gas/config/tc-i386.c.
116
	     When we link PE and non-PE object files together to
117
	     generate a non-PE executable, we have to compensate it
118
	     here.  */
119
	  if (howto->pc_relative && howto->pcrel_offset)
120
	    diff = -(1 << howto->size);
121
	  else if (symbol->flags & BSF_WEAK)
122
	    diff = reloc_entry->addend - symbol->value;
123
	  else
124
	    diff = -reloc_entry->addend;
125
	}
126
      else
127
#endif
128
	diff = reloc_entry->addend;
129
    }
130
 
131
#ifdef COFF_WITH_PE
132
  /* FIXME: How should this case be handled?  */
133
  if (reloc_entry->howto->type == R_IMAGEBASE
134
      && output_bfd != NULL
135
      && bfd_get_flavour(output_bfd) == bfd_target_coff_flavour)
136
    diff -= pe_data (output_bfd)->pe_opthdr.ImageBase;
137
#endif
138
 
139
#define DOIT(x) \
140
  x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
141
 
142
    if (diff != 0)
143
      {
144
	reloc_howto_type *howto = reloc_entry->howto;
145
	unsigned char *addr = (unsigned char *) data + reloc_entry->address;
146
 
147
	switch (howto->size)
148
	  {
149
	  case 0:
150
	    {
151
	      char x = bfd_get_8 (abfd, addr);
152
	      DOIT (x);
153
	      bfd_put_8 (abfd, x, addr);
154
	    }
155
	    break;
156
 
157
	  case 1:
158
	    {
159
	      short x = bfd_get_16 (abfd, addr);
160
	      DOIT (x);
161
	      bfd_put_16 (abfd, (bfd_vma) x, addr);
162
	    }
163
	    break;
164
 
165
	  case 2:
166
	    {
167
	      long x = bfd_get_32 (abfd, addr);
168
	      DOIT (x);
169
	      bfd_put_32 (abfd, (bfd_vma) x, addr);
170
	    }
171
	    break;
172
 
173
	  default:
174
	    abort ();
175
	  }
176
      }
177
 
178
  /* Now let bfd_perform_relocation finish everything up.  */
179
  return bfd_reloc_continue;
180
}
181
 
182
#ifdef COFF_WITH_PE
183
/* Return TRUE if this relocation should appear in the output .reloc
184
   section.  */
185
 
186
static bfd_boolean in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED,
187
			       reloc_howto_type *howto)
188
{
189
  return ! howto->pc_relative && howto->type != R_IMAGEBASE
190
	 && howto->type != R_SECREL32;
191
}
192
#endif /* COFF_WITH_PE */
193
 
194
#ifndef PCRELOFFSET
195
#define PCRELOFFSET FALSE
196
#endif
197
 
198
static reloc_howto_type howto_table[] =
199
{
200
  EMPTY_HOWTO (0),
201
  EMPTY_HOWTO (1),
202
  EMPTY_HOWTO (2),
203
  EMPTY_HOWTO (3),
204
  EMPTY_HOWTO (4),
205
  EMPTY_HOWTO (5),
206
  HOWTO (R_DIR32,		/* type */
207
	 0,			/* rightshift */
208
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
209
	 32,			/* bitsize */
210
	 FALSE,			/* pc_relative */
211
	 0,			/* bitpos */
212
	 complain_overflow_bitfield, /* complain_on_overflow */
213
	 coff_i386_reloc,	/* special_function */
214
	 "dir32",		/* name */
215
	 TRUE,			/* partial_inplace */
216
	 0xffffffff,		/* src_mask */
217
	 0xffffffff,		/* dst_mask */
218
	 TRUE),			/* pcrel_offset */
219
  /* PE IMAGE_REL_I386_DIR32NB relocation (7).	*/
220
  HOWTO (R_IMAGEBASE,		/* type */
221
	 0,			/* rightshift */
222
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
223
	 32,			/* bitsize */
224
	 FALSE,			/* pc_relative */
225
	 0,			/* bitpos */
226
	 complain_overflow_bitfield, /* complain_on_overflow */
227
	 coff_i386_reloc,	/* special_function */
228
	 "rva32",		/* name */
229
	 TRUE,			/* partial_inplace */
230
	 0xffffffff,		/* src_mask */
231
	 0xffffffff,		/* dst_mask */
232
	 FALSE),		/* pcrel_offset */
233
  EMPTY_HOWTO (010),
234
  EMPTY_HOWTO (011),
235
  EMPTY_HOWTO (012),
236
#ifdef COFF_WITH_PE
237
  /* 32-bit longword section relative relocation (013).  */
238
  HOWTO (R_SECREL32,		/* type */
239
	 0,			/* rightshift */
240
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
241
	 32,			/* bitsize */
242
	 FALSE,			/* pc_relative */
243
	 0,			/* bitpos */
244
	 complain_overflow_bitfield, /* complain_on_overflow */
245
	 coff_i386_reloc,	/* special_function */
246
	 "secrel32",		/* name */
247
	 TRUE,			/* partial_inplace */
248
	 0xffffffff,		/* src_mask */
249
	 0xffffffff,		/* dst_mask */
250
	 TRUE),			/* pcrel_offset */
251
#else
252
  EMPTY_HOWTO (013),
253
#endif
254
  EMPTY_HOWTO (014),
255
  EMPTY_HOWTO (015),
256
  EMPTY_HOWTO (016),
257
  /* Byte relocation (017).  */
258
  HOWTO (R_RELBYTE,		/* type */
259
	 0,			/* rightshift */
260
	 0,			/* size (0 = byte, 1 = short, 2 = long) */
261
	 8,			/* bitsize */
262
	 FALSE,			/* pc_relative */
263
	 0,			/* bitpos */
264
	 complain_overflow_bitfield, /* complain_on_overflow */
265
	 coff_i386_reloc,	/* special_function */
266
	 "8",			/* name */
267
	 TRUE,			/* partial_inplace */
268
	 0x000000ff,		/* src_mask */
269
	 0x000000ff,		/* dst_mask */
270
	 PCRELOFFSET),		/* pcrel_offset */
271
  /* 16-bit word relocation (020).  */
272
  HOWTO (R_RELWORD,		/* type */
273
	 0,			/* rightshift */
274
	 1,			/* size (0 = byte, 1 = short, 2 = long) */
275
	 16,			/* bitsize */
276
	 FALSE,			/* pc_relative */
277
	 0,			/* bitpos */
278
	 complain_overflow_bitfield, /* complain_on_overflow */
279
	 coff_i386_reloc,	/* special_function */
280
	 "16",			/* name */
281
	 TRUE,			/* partial_inplace */
282
	 0x0000ffff,		/* src_mask */
283
	 0x0000ffff,		/* dst_mask */
284
	 PCRELOFFSET),		/* pcrel_offset */
285
  /* 32-bit longword relocation (021).	*/
286
  HOWTO (R_RELLONG,		/* type */
287
	 0,			/* rightshift */
288
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
289
	 32,			/* bitsize */
290
	 FALSE,			/* pc_relative */
291
	 0,			/* bitpos */
292
	 complain_overflow_bitfield, /* complain_on_overflow */
293
	 coff_i386_reloc,	/* special_function */
294
	 "32",			/* name */
295
	 TRUE,			/* partial_inplace */
296
	 0xffffffff,		/* src_mask */
297
	 0xffffffff,		/* dst_mask */
298
	 PCRELOFFSET),		/* pcrel_offset */
299
  /* Byte PC relative relocation (022).	 */
300
  HOWTO (R_PCRBYTE,		/* type */
301
	 0,			/* rightshift */
302
	 0,			/* size (0 = byte, 1 = short, 2 = long) */
303
	 8,			/* bitsize */
304
	 TRUE,			/* pc_relative */
305
	 0,			/* bitpos */
306
	 complain_overflow_signed, /* complain_on_overflow */
307
	 coff_i386_reloc,	/* special_function */
308
	 "DISP8",		/* name */
309
	 TRUE,			/* partial_inplace */
310
	 0x000000ff,		/* src_mask */
311
	 0x000000ff,		/* dst_mask */
312
	 PCRELOFFSET),		/* pcrel_offset */
313
  /* 16-bit word PC relative relocation (023).	*/
314
  HOWTO (R_PCRWORD,		/* type */
315
	 0,			/* rightshift */
316
	 1,			/* size (0 = byte, 1 = short, 2 = long) */
317
	 16,			/* bitsize */
318
	 TRUE,			/* pc_relative */
319
	 0,			/* bitpos */
320
	 complain_overflow_signed, /* complain_on_overflow */
321
	 coff_i386_reloc,	/* special_function */
322
	 "DISP16",		/* name */
323
	 TRUE,			/* partial_inplace */
324
	 0x0000ffff,		/* src_mask */
325
	 0x0000ffff,		/* dst_mask */
326
	 PCRELOFFSET),		/* pcrel_offset */
327
  /* 32-bit longword PC relative relocation (024).  */
328
  HOWTO (R_PCRLONG,		/* type */
329
	 0,			/* rightshift */
330
	 2,			/* size (0 = byte, 1 = short, 2 = long) */
331
	 32,			/* bitsize */
332
	 TRUE,			/* pc_relative */
333
	 0,			/* bitpos */
334
	 complain_overflow_signed, /* complain_on_overflow */
335
	 coff_i386_reloc,	/* special_function */
336
	 "DISP32",		/* name */
337
	 TRUE,			/* partial_inplace */
338
	 0xffffffff,		/* src_mask */
339
	 0xffffffff,		/* dst_mask */
340
	 PCRELOFFSET)		/* pcrel_offset */
341
};
342
 
6324 serge 343
#define NUM_HOWTOS (sizeof (howto_table) / sizeof (howto_table[0]))
344
 
5197 serge 345
/* Turn a howto into a reloc  nunmber */
346
 
347
#define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
348
#define BADMAG(x) I386BADMAG(x)
349
#define I386 1			/* Customize coffcode.h */
350
 
351
#define RTYPE2HOWTO(cache_ptr, dst)					\
352
  ((cache_ptr)->howto =							\
6324 serge 353
   ((dst)->r_type < NUM_HOWTOS					\
5197 serge 354
    ? howto_table + (dst)->r_type					\
355
    : NULL))
356
 
357
/* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared
358
   library.  On some other COFF targets STYP_BSS is normally
359
   STYP_NOLOAD.  */
360
#define BSS_NOLOAD_IS_SHARED_LIBRARY
361
 
362
/* Compute the addend of a reloc.  If the reloc is to a common symbol,
363
   the object file contains the value of the common symbol.  By the
364
   time this is called, the linker may be using a different symbol
365
   from a different object file with a different value.  Therefore, we
366
   hack wildly to locate the original symbol from this file so that we
367
   can make the correct adjustment.  This macro sets coffsym to the
368
   symbol from the original file, and uses it to set the addend value
369
   correctly.  If this is not a common symbol, the usual addend
370
   calculation is done, except that an additional tweak is needed for
371
   PC relative relocs.
372
   FIXME: This macro refers to symbols and asect; these are from the
373
   calling function, not the macro arguments.  */
374
 
375
#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr)		\
376
  {								\
377
    coff_symbol_type *coffsym = (coff_symbol_type *) NULL;	\
378
    if (ptr && bfd_asymbol_bfd (ptr) != abfd)			\
379
      coffsym = (obj_symbols (abfd)				\
380
	         + (cache_ptr->sym_ptr_ptr - symbols));		\
381
    else if (ptr)						\
6324 serge 382
      coffsym = coff_symbol_from (ptr);				\
5197 serge 383
    if (coffsym != (coff_symbol_type *) NULL			\
384
	&& coffsym->native->u.syment.n_scnum == 0)		\
385
      cache_ptr->addend = - coffsym->native->u.syment.n_value;	\
386
    else if (ptr && bfd_asymbol_bfd (ptr) == abfd		\
387
	     && ptr->section != (asection *) NULL)		\
388
      cache_ptr->addend = - (ptr->section->vma + ptr->value);	\
389
    else							\
390
      cache_ptr->addend = 0;					\
6324 serge 391
    if (ptr && reloc.r_type < NUM_HOWTOS			\
392
	&& howto_table[reloc.r_type].pc_relative)		\
5197 serge 393
      cache_ptr->addend += asect->vma;				\
394
  }
395
 
396
/* We use the special COFF backend linker.  For normal i386 COFF, we
397
   can use the generic relocate_section routine.  For PE, we need our
398
   own routine.  */
399
 
400
#ifndef COFF_WITH_PE
401
 
402
#define coff_relocate_section _bfd_coff_generic_relocate_section
403
 
404
#else /* COFF_WITH_PE */
405
 
406
/* The PE relocate section routine.  The only difference between this
407
   and the regular routine is that we don't want to do anything for a
408
   relocatable link.  */
409
 
410
static bfd_boolean
411
coff_pe_i386_relocate_section (bfd *output_bfd,
412
			       struct bfd_link_info *info,
413
			       bfd *input_bfd,
414
			       asection *input_section,
415
			       bfd_byte *contents,
416
			       struct internal_reloc *relocs,
417
			       struct internal_syment *syms,
418
			       asection **sections)
419
{
6324 serge 420
  if (bfd_link_relocatable (info))
5197 serge 421
    return TRUE;
422
 
423
  return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd,
424
					     input_section, contents,
425
					     relocs, syms, sections);
426
}
427
 
428
#define coff_relocate_section coff_pe_i386_relocate_section
429
 
430
#endif /* COFF_WITH_PE */
431
 
432
/* Convert an rtype to howto for the COFF backend linker.  */
433
 
434
static reloc_howto_type *
435
coff_i386_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
436
			  asection *sec,
437
			  struct internal_reloc *rel,
438
			  struct coff_link_hash_entry *h,
439
			  struct internal_syment *sym,
440
			  bfd_vma *addendp)
441
{
442
  reloc_howto_type *howto;
443
 
6324 serge 444
  if (rel->r_type >= NUM_HOWTOS)
5197 serge 445
    {
446
      bfd_set_error (bfd_error_bad_value);
447
      return NULL;
448
    }
449
 
450
  howto = howto_table + rel->r_type;
451
 
452
#ifdef COFF_WITH_PE
453
  /* Cancel out code in _bfd_coff_generic_relocate_section.  */
454
  *addendp = 0;
455
#endif
456
 
457
  if (howto->pc_relative)
458
    *addendp += sec->vma;
459
 
460
  if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
461
    {
462
      /* This is a common symbol.  The section contents include the
463
	 size (sym->n_value) as an addend.  The relocate_section
464
	 function will be adding in the final value of the symbol.  We
465
	 need to subtract out the current size in order to get the
466
	 correct result.  */
467
 
468
      BFD_ASSERT (h != NULL);
469
 
470
#ifndef COFF_WITH_PE
471
      /* I think we *do* want to bypass this.  If we don't, I have
472
	 seen some data parameters get the wrong relocation address.
473
	 If I link two versions with and without this section bypassed
474
	 and then do a binary comparison, the addresses which are
475
	 different can be looked up in the map.  The case in which
476
	 this section has been bypassed has addresses which correspond
477
	 to values I can find in the map.  */
478
      *addendp -= sym->n_value;
479
#endif
480
    }
481
 
482
#ifndef COFF_WITH_PE
483
  /* If the output symbol is common (in which case this must be a
484
     relocatable link), we need to add in the final size of the
485
     common symbol.  */
486
  if (h != NULL && h->root.type == bfd_link_hash_common)
487
    *addendp += h->root.u.c.size;
488
#endif
489
 
490
#ifdef COFF_WITH_PE
491
  if (howto->pc_relative)
492
    {
493
      *addendp -= 4;
494
 
495
      /* If the symbol is defined, then the generic code is going to
496
         add back the symbol value in order to cancel out an
497
         adjustment it made to the addend.  However, we set the addend
498
         to 0 at the start of this function.  We need to adjust here,
499
         to avoid the adjustment the generic code will make.  FIXME:
500
         This is getting a bit hackish.  */
501
      if (sym != NULL && sym->n_scnum != 0)
502
	*addendp -= sym->n_value;
503
    }
504
 
505
  if (rel->r_type == R_IMAGEBASE
506
      && (bfd_get_flavour(sec->output_section->owner)
507
	  == bfd_target_coff_flavour))
508
    {
509
      *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
510
    }
511
 
6324 serge 512
  /* PR 17099 - Absolute R_PCRLONG relocations do not need a symbol.  */
513
  if (rel->r_type == R_PCRLONG && sym == NULL)
514
    *addendp -= rel->r_vaddr;
515
  else
5197 serge 516
  BFD_ASSERT (sym != NULL);
6324 serge 517
 
5197 serge 518
  if (rel->r_type == R_SECREL32 && sym != NULL)
519
    {
520
      bfd_vma osect_vma;
521
 
522
      if (h && (h->root.type == bfd_link_hash_defined
523
		|| h->root.type == bfd_link_hash_defweak))
524
	osect_vma = h->root.u.def.section->output_section->vma;
525
      else
526
	{
527
	  asection *s;
528
	  int i;
529
 
530
	  /* Sigh, the only way to get the section to offset against
531
	     is to find it the hard way.  */
532
 
533
	  for (s = abfd->sections, i = 1; i < sym->n_scnum; i++)
534
	    s = s->next;
535
 
536
	  osect_vma = s->output_section->vma;
537
	}
538
 
539
      *addendp -= osect_vma;
540
    }
541
#endif
542
 
543
  return howto;
544
}
545
 
546
#define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup
547
#define coff_bfd_reloc_name_lookup coff_i386_reloc_name_lookup
548
 
549
static reloc_howto_type *
550
coff_i386_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
551
			     bfd_reloc_code_real_type code)
552
{
553
  switch (code)
554
    {
555
    case BFD_RELOC_RVA:
556
      return howto_table + R_IMAGEBASE;
557
    case BFD_RELOC_32:
558
      return howto_table + R_DIR32;
559
    case BFD_RELOC_32_PCREL:
560
      return howto_table + R_PCRLONG;
561
    case BFD_RELOC_16:
562
      return howto_table + R_RELWORD;
563
    case BFD_RELOC_16_PCREL:
564
      return howto_table + R_PCRWORD;
565
    case BFD_RELOC_8:
566
      return howto_table + R_RELBYTE;
567
    case BFD_RELOC_8_PCREL:
568
      return howto_table + R_PCRBYTE;
569
#ifdef COFF_WITH_PE
570
    case BFD_RELOC_32_SECREL:
571
      return howto_table + R_SECREL32;
572
#endif
573
    default:
574
      BFD_FAIL ();
575
      return 0;
576
    }
577
}
578
 
579
static reloc_howto_type *
580
coff_i386_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
581
			     const char *r_name)
582
{
583
  unsigned int i;
584
 
6324 serge 585
  for (i = 0; i < NUM_HOWTOS; i++)
5197 serge 586
    if (howto_table[i].name != NULL
587
	&& strcasecmp (howto_table[i].name, r_name) == 0)
588
      return &howto_table[i];
589
 
590
  return NULL;
591
}
592
 
593
#define coff_rtype_to_howto coff_i386_rtype_to_howto
594
 
595
#ifdef TARGET_UNDERSCORE
596
 
597
/* If i386 gcc uses underscores for symbol names, then it does not use
598
   a leading dot for local labels, so if TARGET_UNDERSCORE is defined
599
   we treat all symbols starting with L as local.  */
600
 
601
static bfd_boolean
602
coff_i386_is_local_label_name (bfd *abfd, const char *name)
603
{
604
  if (name[0] == 'L')
605
    return TRUE;
606
 
607
  return _bfd_coff_is_local_label_name (abfd, name);
608
}
609
 
610
#define coff_bfd_is_local_label_name coff_i386_is_local_label_name
611
 
612
#endif /* TARGET_UNDERSCORE */
613
 
614
#include "coffcode.h"
615
 
616
const bfd_target
617
#ifdef TARGET_SYM
618
  TARGET_SYM =
619
#else
6324 serge 620
  i386_coff_vec =
5197 serge 621
#endif
622
{
623
#ifdef TARGET_NAME
624
  TARGET_NAME,
625
#else
626
  "coff-i386",			/* name */
627
#endif
628
  bfd_target_coff_flavour,
629
  BFD_ENDIAN_LITTLE,		/* data byte order is little */
630
  BFD_ENDIAN_LITTLE,		/* header byte order is little */
631
 
632
  (HAS_RELOC | EXEC_P |		/* object flags */
633
   HAS_LINENO | HAS_DEBUG |
634
   HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS ),
635
 
636
  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
637
#ifdef COFF_WITH_PE
638
   | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING
639
#endif
640
   | SEC_CODE | SEC_DATA | SEC_EXCLUDE ),
641
 
642
#ifdef TARGET_UNDERSCORE
643
  TARGET_UNDERSCORE,		/* leading underscore */
644
#else
645
  0,				/* leading underscore */
646
#endif
647
  '/',				/* ar_pad_char */
648
  15,				/* ar_max_namelen */
649
  0,				/* match priority.  */
650
 
651
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
652
     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
653
     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
654
  bfd_getl64, bfd_getl_signed_64, bfd_putl64,
655
     bfd_getl32, bfd_getl_signed_32, bfd_putl32,
656
     bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
657
 
658
/* Note that we allow an object file to be treated as a core file as well.  */
659
    /* bfd_check_format */
660
#ifdef COFF_CHECK_FORMAT
661
    {_bfd_dummy_target, COFF_CHECK_FORMAT,
662
       bfd_generic_archive_p, COFF_CHECK_FORMAT},
663
#else
664
    {_bfd_dummy_target, coff_object_p, bfd_generic_archive_p, coff_object_p},
665
#endif
666
    {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
667
       bfd_false},
668
    {bfd_false, coff_write_object_contents, /* bfd_write_contents */
669
       _bfd_write_archive_contents, bfd_false},
670
 
671
     BFD_JUMP_TABLE_GENERIC (coff),
672
     BFD_JUMP_TABLE_COPY (coff),
673
     BFD_JUMP_TABLE_CORE (_bfd_nocore),
674
     BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
675
     BFD_JUMP_TABLE_SYMBOLS (coff),
676
     BFD_JUMP_TABLE_RELOCS (coff),
677
     BFD_JUMP_TABLE_WRITE (coff),
678
     BFD_JUMP_TABLE_LINK (coff),
679
     BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
680
 
681
  NULL,
682
 
683
  COFF_SWAP_TABLE
684
};