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[deliverable/binutils-gdb.git] / bfd / coff-i386.c
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252b5132 1/* BFD back-end for Intel 386 COFF files.
2571583a 2 Copyright (C) 1990-2017 Free Software Foundation, Inc.
252b5132
RH
3 Written by Cygnus Support.
4
977cdf5a 5 This file is part of BFD, the Binary File Descriptor library.
252b5132 6
977cdf5a
NC
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
cd123cb7 9 the Free Software Foundation; either version 3 of the License, or
977cdf5a 10 (at your option) any later version.
252b5132 11
977cdf5a
NC
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.
252b5132 16
977cdf5a
NC
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
cd123cb7
NC
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
252b5132 21
252b5132 22#include "sysdep.h"
3db64b00 23#include "bfd.h"
252b5132
RH
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
2b5c217d
NC
38#ifndef bfd_pe_print_pdata
39#define bfd_pe_print_pdata NULL
40#endif
41
252b5132
RH
42#include "libcoff.h"
43
252b5132 44static reloc_howto_type *coff_i386_rtype_to_howto
e05da72d
NC
45 (bfd *, asection *, struct internal_reloc *,
46 struct coff_link_hash_entry *, struct internal_syment *,
47 bfd_vma *);
00692651 48static reloc_howto_type *coff_i386_reloc_type_lookup
e05da72d 49 (bfd *, bfd_reloc_code_real_type);
252b5132
RH
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
1049f94e 60/* If we are producing relocatable output, we need to do some
252b5132
RH
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
65static bfd_reloc_status_type
2c3fc389
NC
66coff_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)
252b5132
RH
73{
74 symvalue diff;
75
689be717 76#ifndef COFF_WITH_PE
252b5132
RH
77 if (output_bfd == (bfd *) NULL)
78 return bfd_reloc_continue;
689be717 79#endif
252b5132
RH
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
1049f94e 105 relocatable output. This seems to be always wrong for 386
252b5132 106 COFF, so we handle the addend here instead. */
689be717
L
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. */
82e51918 119 if (howto->pc_relative && howto->pcrel_offset)
689be717 120 diff = -(1 << howto->size);
977cdf5a
NC
121 else if (symbol->flags & BSF_WEAK)
122 diff = reloc_entry->addend - symbol->value;
689be717
L
123 else
124 diff = -reloc_entry->addend;
125 }
126 else
127#endif
128 diff = reloc_entry->addend;
252b5132
RH
129 }
130
131#ifdef COFF_WITH_PE
132 /* FIXME: How should this case be handled? */
8e191bd3
ILT
133 if (reloc_entry->howto->type == R_IMAGEBASE
134 && output_bfd != NULL
135 && bfd_get_flavour(output_bfd) == bfd_target_coff_flavour)
00692651 136 diff -= pe_data (output_bfd)->pe_opthdr.ImageBase;
252b5132
RH
137#endif
138
139#define DOIT(x) \
140 x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask))
141
ec70be9f
NC
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;
252b5132 156
ec70be9f 157 case 1:
252b5132 158 {
ec70be9f
NC
159 short x = bfd_get_16 (abfd, addr);
160 DOIT (x);
161 bfd_put_16 (abfd, (bfd_vma) x, addr);
252b5132 162 }
ec70be9f
NC
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 }
252b5132
RH
177
178 /* Now let bfd_perform_relocation finish everything up. */
179 return bfd_reloc_continue;
180}
181
182#ifdef COFF_WITH_PE
b34976b6 183/* Return TRUE if this relocation should appear in the output .reloc
6fb72d08
ILT
184 section. */
185
2c3fc389
NC
186static bfd_boolean in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED,
187 reloc_howto_type *howto)
252b5132 188{
b706dc83
KT
189 return ! howto->pc_relative && howto->type != R_IMAGEBASE
190 && howto->type != R_SECREL32;
b7be1db6 191}
6fb72d08 192#endif /* COFF_WITH_PE */
252b5132
RH
193
194#ifndef PCRELOFFSET
b34976b6 195#define PCRELOFFSET FALSE
252b5132
RH
196#endif
197
b7be1db6 198static reloc_howto_type howto_table[] =
252b5132 199{
5f771d47
ILT
200 EMPTY_HOWTO (0),
201 EMPTY_HOWTO (1),
202 EMPTY_HOWTO (2),
203 EMPTY_HOWTO (3),
204 EMPTY_HOWTO (4),
205 EMPTY_HOWTO (5),
b7be1db6
AM
206 HOWTO (R_DIR32, /* type */
207 0, /* rightshift */
208 2, /* size (0 = byte, 1 = short, 2 = long) */
209 32, /* bitsize */
b34976b6 210 FALSE, /* pc_relative */
b7be1db6 211 0, /* bitpos */
252b5132 212 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
213 coff_i386_reloc, /* special_function */
214 "dir32", /* name */
b34976b6 215 TRUE, /* partial_inplace */
b7be1db6
AM
216 0xffffffff, /* src_mask */
217 0xffffffff, /* dst_mask */
b34976b6 218 TRUE), /* pcrel_offset */
b7be1db6
AM
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 */
b34976b6 224 FALSE, /* pc_relative */
b7be1db6 225 0, /* bitpos */
252b5132 226 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
227 coff_i386_reloc, /* special_function */
228 "rva32", /* name */
b34976b6 229 TRUE, /* partial_inplace */
b7be1db6
AM
230 0xffffffff, /* src_mask */
231 0xffffffff, /* dst_mask */
b34976b6 232 FALSE), /* pcrel_offset */
5f771d47
ILT
233 EMPTY_HOWTO (010),
234 EMPTY_HOWTO (011),
235 EMPTY_HOWTO (012),
6482c264
NC
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
5f771d47 252 EMPTY_HOWTO (013),
6482c264 253#endif
5f771d47
ILT
254 EMPTY_HOWTO (014),
255 EMPTY_HOWTO (015),
256 EMPTY_HOWTO (016),
00692651
ILT
257 /* Byte relocation (017). */
258 HOWTO (R_RELBYTE, /* type */
b7be1db6
AM
259 0, /* rightshift */
260 0, /* size (0 = byte, 1 = short, 2 = long) */
261 8, /* bitsize */
b34976b6 262 FALSE, /* pc_relative */
b7be1db6 263 0, /* bitpos */
252b5132 264 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
265 coff_i386_reloc, /* special_function */
266 "8", /* name */
b34976b6 267 TRUE, /* partial_inplace */
b7be1db6
AM
268 0x000000ff, /* src_mask */
269 0x000000ff, /* dst_mask */
252b5132 270 PCRELOFFSET), /* pcrel_offset */
00692651 271 /* 16-bit word relocation (020). */
b7be1db6
AM
272 HOWTO (R_RELWORD, /* type */
273 0, /* rightshift */
274 1, /* size (0 = byte, 1 = short, 2 = long) */
275 16, /* bitsize */
b34976b6 276 FALSE, /* pc_relative */
b7be1db6 277 0, /* bitpos */
252b5132 278 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
279 coff_i386_reloc, /* special_function */
280 "16", /* name */
b34976b6 281 TRUE, /* partial_inplace */
b7be1db6
AM
282 0x0000ffff, /* src_mask */
283 0x0000ffff, /* dst_mask */
252b5132 284 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
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 */
b34976b6 290 FALSE, /* pc_relative */
b7be1db6 291 0, /* bitpos */
252b5132 292 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
293 coff_i386_reloc, /* special_function */
294 "32", /* name */
b34976b6 295 TRUE, /* partial_inplace */
b7be1db6
AM
296 0xffffffff, /* src_mask */
297 0xffffffff, /* dst_mask */
252b5132 298 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
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 */
b34976b6 304 TRUE, /* pc_relative */
b7be1db6 305 0, /* bitpos */
252b5132 306 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
307 coff_i386_reloc, /* special_function */
308 "DISP8", /* name */
b34976b6 309 TRUE, /* partial_inplace */
b7be1db6
AM
310 0x000000ff, /* src_mask */
311 0x000000ff, /* dst_mask */
252b5132 312 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
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 */
b34976b6 318 TRUE, /* pc_relative */
b7be1db6 319 0, /* bitpos */
252b5132 320 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
321 coff_i386_reloc, /* special_function */
322 "DISP16", /* name */
b34976b6 323 TRUE, /* partial_inplace */
b7be1db6
AM
324 0x0000ffff, /* src_mask */
325 0x0000ffff, /* dst_mask */
252b5132 326 PCRELOFFSET), /* pcrel_offset */
00692651 327 /* 32-bit longword PC relative relocation (024). */
b7be1db6
AM
328 HOWTO (R_PCRLONG, /* type */
329 0, /* rightshift */
330 2, /* size (0 = byte, 1 = short, 2 = long) */
331 32, /* bitsize */
b34976b6 332 TRUE, /* pc_relative */
b7be1db6 333 0, /* bitpos */
252b5132 334 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
335 coff_i386_reloc, /* special_function */
336 "DISP32", /* name */
b34976b6 337 TRUE, /* partial_inplace */
b7be1db6
AM
338 0xffffffff, /* src_mask */
339 0xffffffff, /* dst_mask */
252b5132
RH
340 PCRELOFFSET) /* pcrel_offset */
341};
342
36e9d67b
NC
343#define NUM_HOWTOS (sizeof (howto_table) / sizeof (howto_table[0]))
344
252b5132
RH
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
36e9d67b
NC
351#define RTYPE2HOWTO(cache_ptr, dst) \
352 ((cache_ptr)->howto = \
353 ((dst)->r_type < NUM_HOWTOS \
354 ? howto_table + (dst)->r_type \
00692651 355 : NULL))
252b5132
RH
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) \
f4943d82 382 coffsym = coff_symbol_from (ptr); \
252b5132
RH
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; \
36e9d67b
NC
391 if (ptr && reloc.r_type < NUM_HOWTOS \
392 && howto_table[reloc.r_type].pc_relative) \
252b5132
RH
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
1049f94e 408 relocatable link. */
252b5132 409
b34976b6 410static bfd_boolean
2c3fc389
NC
411coff_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)
252b5132 419{
0e1862bb 420 if (bfd_link_relocatable (info))
b34976b6 421 return TRUE;
252b5132
RH
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
434static reloc_howto_type *
2c3fc389
NC
435coff_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)
252b5132 441{
252b5132
RH
442 reloc_howto_type *howto;
443
36e9d67b 444 if (rel->r_type >= NUM_HOWTOS)
00692651
ILT
445 {
446 bfd_set_error (bfd_error_bad_value);
447 return NULL;
448 }
449
252b5132
RH
450 howto = howto_table + rel->r_type;
451
452#ifdef COFF_WITH_PE
00692651 453 /* Cancel out code in _bfd_coff_generic_relocate_section. */
252b5132
RH
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. */
b7be1db6 467
252b5132
RH
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
1049f94e 484 relocatable link), we need to add in the final size of the
252b5132 485 common symbol. */
b7be1db6 486 if (h != NULL && h->root.type == bfd_link_hash_common)
252b5132
RH
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
8e191bd3
ILT
505 if (rel->r_type == R_IMAGEBASE
506 && (bfd_get_flavour(sec->output_section->owner)
507 == bfd_target_coff_flavour))
252b5132
RH
508 {
509 *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
510 }
6482c264 511
a93d5cb1
NC
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
516 BFD_ASSERT (sym != NULL);
517
507f5898 518 if (rel->r_type == R_SECREL32 && sym != NULL)
6482c264
NC
519 {
520 bfd_vma osect_vma;
521
8a5dcf53
AM
522 if (h && (h->root.type == bfd_link_hash_defined
523 || h->root.type == bfd_link_hash_defweak))
6482c264
NC
524 osect_vma = h->root.u.def.section->output_section->vma;
525 else
526 {
91d6fa6a 527 asection *s;
6482c264
NC
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
91d6fa6a
NC
533 for (s = abfd->sections, i = 1; i < sym->n_scnum; i++)
534 s = s->next;
6482c264 535
91d6fa6a 536 osect_vma = s->output_section->vma;
6482c264
NC
537 }
538
539 *addendp -= osect_vma;
540 }
252b5132
RH
541#endif
542
543 return howto;
544}
545
252b5132 546#define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup
157090f7 547#define coff_bfd_reloc_name_lookup coff_i386_reloc_name_lookup
252b5132 548
252b5132 549static reloc_howto_type *
2c3fc389
NC
550coff_i386_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
551 bfd_reloc_code_real_type code)
252b5132
RH
552{
553 switch (code)
554 {
555 case BFD_RELOC_RVA:
b7be1db6 556 return howto_table + R_IMAGEBASE;
252b5132
RH
557 case BFD_RELOC_32:
558 return howto_table + R_DIR32;
559 case BFD_RELOC_32_PCREL:
560 return howto_table + R_PCRLONG;
b7be1db6
AM
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;
6482c264
NC
569#ifdef COFF_WITH_PE
570 case BFD_RELOC_32_SECREL:
571 return howto_table + R_SECREL32;
572#endif
252b5132
RH
573 default:
574 BFD_FAIL ();
575 return 0;
576 }
577}
578
157090f7
AM
579static reloc_howto_type *
580coff_i386_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
581 const char *r_name)
582{
583 unsigned int i;
584
36e9d67b 585 for (i = 0; i < NUM_HOWTOS; i++)
157090f7
AM
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
252b5132
RH
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
b34976b6 601static bfd_boolean
2c3fc389 602coff_i386_is_local_label_name (bfd *abfd, const char *name)
252b5132
RH
603{
604 if (name[0] == 'L')
b34976b6 605 return TRUE;
252b5132
RH
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
252b5132
RH
616const bfd_target
617#ifdef TARGET_SYM
618 TARGET_SYM =
619#else
6d00b590 620 i386_coff_vec =
252b5132
RH
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 |
a29a8af8 634 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS ),
252b5132 635
252b5132 636 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
6fb72d08 637#ifdef COFF_WITH_PE
a29a8af8 638 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING
252b5132 639#endif
a29a8af8 640 | SEC_CODE | SEC_DATA | SEC_EXCLUDE ),
252b5132
RH
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 */
0aabe54e 649 0, /* match priority. */
252b5132
RH
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
5fcfd273 658/* Note that we allow an object file to be treated as a core file as well. */
156f6ad8
JK
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
252b5132
RH
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
c3c89269 681 NULL,
b7be1db6 682
c3c89269 683 COFF_SWAP_TABLE
252b5132 684};
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