binutils/
[deliverable/binutils-gdb.git] / bfd / coff-i386.c
CommitLineData
252b5132 1/* BFD back-end for Intel 386 COFF files.
7898deda 2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
2b5c217d 3 2000, 2001, 2002, 2003, 2004, 2007, 2008
252b5132
RH
4 Free Software Foundation, Inc.
5 Written by Cygnus Support.
6
977cdf5a 7 This file is part of BFD, the Binary File Descriptor library.
252b5132 8
977cdf5a
NC
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
cd123cb7 11 the Free Software Foundation; either version 3 of the License, or
977cdf5a 12 (at your option) any later version.
252b5132 13
977cdf5a
NC
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.
252b5132 18
977cdf5a
NC
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
cd123cb7
NC
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
252b5132 23
252b5132 24#include "sysdep.h"
3db64b00 25#include "bfd.h"
252b5132
RH
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
2b5c217d
NC
40#ifndef bfd_pe_print_pdata
41#define bfd_pe_print_pdata NULL
42#endif
43
252b5132
RH
44#include "libcoff.h"
45
b7be1db6 46static bfd_reloc_status_type coff_i386_reloc
252b5132
RH
47 PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **));
48static reloc_howto_type *coff_i386_rtype_to_howto
49 PARAMS ((bfd *, asection *, struct internal_reloc *,
50 struct coff_link_hash_entry *, struct internal_syment *,
252b5132 51 bfd_vma *));
00692651
ILT
52static reloc_howto_type *coff_i386_reloc_type_lookup
53 PARAMS ((bfd *, bfd_reloc_code_real_type));
252b5132
RH
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
1049f94e 64/* If we are producing relocatable output, we need to do some
252b5132
RH
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
69static bfd_reloc_status_type
70coff_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;
5f771d47 76 asection *input_section ATTRIBUTE_UNUSED;
252b5132 77 bfd *output_bfd;
5f771d47 78 char **error_message ATTRIBUTE_UNUSED;
252b5132
RH
79{
80 symvalue diff;
81
689be717 82#ifndef COFF_WITH_PE
252b5132
RH
83 if (output_bfd == (bfd *) NULL)
84 return bfd_reloc_continue;
689be717 85#endif
252b5132
RH
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
1049f94e 111 relocatable output. This seems to be always wrong for 386
252b5132 112 COFF, so we handle the addend here instead. */
689be717
L
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. */
82e51918 125 if (howto->pc_relative && howto->pcrel_offset)
689be717 126 diff = -(1 << howto->size);
977cdf5a
NC
127 else if (symbol->flags & BSF_WEAK)
128 diff = reloc_entry->addend - symbol->value;
689be717
L
129 else
130 diff = -reloc_entry->addend;
131 }
132 else
133#endif
134 diff = reloc_entry->addend;
252b5132
RH
135 }
136
137#ifdef COFF_WITH_PE
138 /* FIXME: How should this case be handled? */
8e191bd3
ILT
139 if (reloc_entry->howto->type == R_IMAGEBASE
140 && output_bfd != NULL
141 && bfd_get_flavour(output_bfd) == bfd_target_coff_flavour)
00692651 142 diff -= pe_data (output_bfd)->pe_opthdr.ImageBase;
252b5132
RH
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);
dc810e39 167 bfd_put_16 (abfd, (bfd_vma) x, addr);
252b5132
RH
168 }
169 break;
170
171 case 2:
172 {
173 long x = bfd_get_32 (abfd, addr);
174 DOIT (x);
dc810e39 175 bfd_put_32 (abfd, (bfd_vma) x, addr);
252b5132
RH
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
b34976b6 189/* Return TRUE if this relocation should appear in the output .reloc
6fb72d08
ILT
190 section. */
191
b34976b6 192static bfd_boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *));
6fb72d08 193
b34976b6 194static bfd_boolean in_reloc_p (abfd, howto)
60bcf0fa 195 bfd * abfd ATTRIBUTE_UNUSED;
252b5132
RH
196 reloc_howto_type *howto;
197{
198 return ! howto->pc_relative && howto->type != R_IMAGEBASE;
b7be1db6 199}
6fb72d08 200#endif /* COFF_WITH_PE */
252b5132
RH
201
202#ifndef PCRELOFFSET
b34976b6 203#define PCRELOFFSET FALSE
252b5132
RH
204#endif
205
b7be1db6 206static reloc_howto_type howto_table[] =
252b5132 207{
5f771d47
ILT
208 EMPTY_HOWTO (0),
209 EMPTY_HOWTO (1),
210 EMPTY_HOWTO (2),
211 EMPTY_HOWTO (3),
212 EMPTY_HOWTO (4),
213 EMPTY_HOWTO (5),
b7be1db6
AM
214 HOWTO (R_DIR32, /* type */
215 0, /* rightshift */
216 2, /* size (0 = byte, 1 = short, 2 = long) */
217 32, /* bitsize */
b34976b6 218 FALSE, /* pc_relative */
b7be1db6 219 0, /* bitpos */
252b5132 220 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
221 coff_i386_reloc, /* special_function */
222 "dir32", /* name */
b34976b6 223 TRUE, /* partial_inplace */
b7be1db6
AM
224 0xffffffff, /* src_mask */
225 0xffffffff, /* dst_mask */
b34976b6 226 TRUE), /* pcrel_offset */
b7be1db6
AM
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 */
b34976b6 232 FALSE, /* pc_relative */
b7be1db6 233 0, /* bitpos */
252b5132 234 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
235 coff_i386_reloc, /* special_function */
236 "rva32", /* name */
b34976b6 237 TRUE, /* partial_inplace */
b7be1db6
AM
238 0xffffffff, /* src_mask */
239 0xffffffff, /* dst_mask */
b34976b6 240 FALSE), /* pcrel_offset */
5f771d47
ILT
241 EMPTY_HOWTO (010),
242 EMPTY_HOWTO (011),
243 EMPTY_HOWTO (012),
6482c264
NC
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
5f771d47 260 EMPTY_HOWTO (013),
6482c264 261#endif
5f771d47
ILT
262 EMPTY_HOWTO (014),
263 EMPTY_HOWTO (015),
264 EMPTY_HOWTO (016),
00692651
ILT
265 /* Byte relocation (017). */
266 HOWTO (R_RELBYTE, /* type */
b7be1db6
AM
267 0, /* rightshift */
268 0, /* size (0 = byte, 1 = short, 2 = long) */
269 8, /* bitsize */
b34976b6 270 FALSE, /* pc_relative */
b7be1db6 271 0, /* bitpos */
252b5132 272 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
273 coff_i386_reloc, /* special_function */
274 "8", /* name */
b34976b6 275 TRUE, /* partial_inplace */
b7be1db6
AM
276 0x000000ff, /* src_mask */
277 0x000000ff, /* dst_mask */
252b5132 278 PCRELOFFSET), /* pcrel_offset */
00692651 279 /* 16-bit word relocation (020). */
b7be1db6
AM
280 HOWTO (R_RELWORD, /* type */
281 0, /* rightshift */
282 1, /* size (0 = byte, 1 = short, 2 = long) */
283 16, /* bitsize */
b34976b6 284 FALSE, /* pc_relative */
b7be1db6 285 0, /* bitpos */
252b5132 286 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
287 coff_i386_reloc, /* special_function */
288 "16", /* name */
b34976b6 289 TRUE, /* partial_inplace */
b7be1db6
AM
290 0x0000ffff, /* src_mask */
291 0x0000ffff, /* dst_mask */
252b5132 292 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
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 */
b34976b6 298 FALSE, /* pc_relative */
b7be1db6 299 0, /* bitpos */
252b5132 300 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
301 coff_i386_reloc, /* special_function */
302 "32", /* name */
b34976b6 303 TRUE, /* partial_inplace */
b7be1db6
AM
304 0xffffffff, /* src_mask */
305 0xffffffff, /* dst_mask */
252b5132 306 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
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 */
b34976b6 312 TRUE, /* pc_relative */
b7be1db6 313 0, /* bitpos */
252b5132 314 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
315 coff_i386_reloc, /* special_function */
316 "DISP8", /* name */
b34976b6 317 TRUE, /* partial_inplace */
b7be1db6
AM
318 0x000000ff, /* src_mask */
319 0x000000ff, /* dst_mask */
252b5132 320 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
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 */
b34976b6 326 TRUE, /* pc_relative */
b7be1db6 327 0, /* bitpos */
252b5132 328 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
329 coff_i386_reloc, /* special_function */
330 "DISP16", /* name */
b34976b6 331 TRUE, /* partial_inplace */
b7be1db6
AM
332 0x0000ffff, /* src_mask */
333 0x0000ffff, /* dst_mask */
252b5132 334 PCRELOFFSET), /* pcrel_offset */
00692651 335 /* 32-bit longword PC relative relocation (024). */
b7be1db6
AM
336 HOWTO (R_PCRLONG, /* type */
337 0, /* rightshift */
338 2, /* size (0 = byte, 1 = short, 2 = long) */
339 32, /* bitsize */
b34976b6 340 TRUE, /* pc_relative */
b7be1db6 341 0, /* bitpos */
252b5132 342 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
343 coff_i386_reloc, /* special_function */
344 "DISP32", /* name */
b34976b6 345 TRUE, /* partial_inplace */
b7be1db6
AM
346 0xffffffff, /* src_mask */
347 0xffffffff, /* dst_mask */
252b5132
RH
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
00692651
ILT
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))
252b5132
RH
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
1049f94e 413 relocatable link. */
252b5132 414
b34976b6 415static bfd_boolean coff_pe_i386_relocate_section
252b5132
RH
416 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
417 struct internal_reloc *, struct internal_syment *, asection **));
418
b34976b6 419static bfd_boolean
252b5132
RH
420coff_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{
1049f94e 432 if (info->relocatable)
b34976b6 433 return TRUE;
252b5132
RH
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
446static reloc_howto_type *
447coff_i386_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
5f771d47 448 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
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{
252b5132
RH
455 reloc_howto_type *howto;
456
50a39e97 457 if (rel->r_type >= sizeof (howto_table) / sizeof (howto_table[0]))
00692651
ILT
458 {
459 bfd_set_error (bfd_error_bad_value);
460 return NULL;
461 }
462
252b5132
RH
463 howto = howto_table + rel->r_type;
464
465#ifdef COFF_WITH_PE
00692651 466 /* Cancel out code in _bfd_coff_generic_relocate_section. */
252b5132
RH
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. */
b7be1db6 480
252b5132
RH
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
1049f94e 497 relocatable link), we need to add in the final size of the
252b5132 498 common symbol. */
b7be1db6 499 if (h != NULL && h->root.type == bfd_link_hash_common)
252b5132
RH
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
8e191bd3
ILT
518 if (rel->r_type == R_IMAGEBASE
519 && (bfd_get_flavour(sec->output_section->owner)
520 == bfd_target_coff_flavour))
252b5132
RH
521 {
522 *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
523 }
6482c264 524
507f5898
MS
525 BFD_ASSERT (sym != NULL);
526 if (rel->r_type == R_SECREL32 && sym != NULL)
6482c264
NC
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 }
252b5132
RH
549#endif
550
551 return howto;
552}
553
252b5132 554#define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup
157090f7 555#define coff_bfd_reloc_name_lookup coff_i386_reloc_name_lookup
252b5132 556
252b5132
RH
557static reloc_howto_type *
558coff_i386_reloc_type_lookup (abfd, code)
5f771d47 559 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
560 bfd_reloc_code_real_type code;
561{
562 switch (code)
563 {
564 case BFD_RELOC_RVA:
b7be1db6 565 return howto_table + R_IMAGEBASE;
252b5132
RH
566 case BFD_RELOC_32:
567 return howto_table + R_DIR32;
568 case BFD_RELOC_32_PCREL:
569 return howto_table + R_PCRLONG;
b7be1db6
AM
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;
6482c264
NC
578#ifdef COFF_WITH_PE
579 case BFD_RELOC_32_SECREL:
580 return howto_table + R_SECREL32;
581#endif
252b5132
RH
582 default:
583 BFD_FAIL ();
584 return 0;
585 }
586}
587
157090f7
AM
588static reloc_howto_type *
589coff_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
252b5132
RH
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
b34976b6
AM
610static bfd_boolean coff_i386_is_local_label_name
611 PARAMS ((bfd *, const char *));
252b5132 612
b34976b6 613static bfd_boolean
252b5132
RH
614coff_i386_is_local_label_name (abfd, name)
615 bfd *abfd;
616 const char *name;
617{
618 if (name[0] == 'L')
b34976b6 619 return TRUE;
252b5132
RH
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
252b5132
RH
630const 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
252b5132 650 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
6fb72d08 651#ifdef COFF_WITH_PE
baf80c32 652 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY
252b5132 653#endif
6fb72d08 654 | SEC_CODE | SEC_DATA),
252b5132
RH
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
5fcfd273 671/* Note that we allow an object file to be treated as a core file as well. */
cb665cd3
NC
672 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
673 bfd_generic_archive_p, coff_object_p},
252b5132
RH
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
c3c89269 689 NULL,
b7be1db6 690
c3c89269 691 COFF_SWAP_TABLE
252b5132 692};
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