* bfin-tdep.c (bfin_extract_return_value): Fix swapped
[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,
0aabe54e 3 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011
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
e05da72d 47 (bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **);
252b5132 48static reloc_howto_type *coff_i386_rtype_to_howto
e05da72d
NC
49 (bfd *, asection *, struct internal_reloc *,
50 struct coff_link_hash_entry *, struct internal_syment *,
51 bfd_vma *);
00692651 52static reloc_howto_type *coff_i386_reloc_type_lookup
e05da72d 53 (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{
b706dc83
KT
198 return ! howto->pc_relative && howto->type != R_IMAGEBASE
199 && howto->type != R_SECREL32;
b7be1db6 200}
6fb72d08 201#endif /* COFF_WITH_PE */
252b5132
RH
202
203#ifndef PCRELOFFSET
b34976b6 204#define PCRELOFFSET FALSE
252b5132
RH
205#endif
206
b7be1db6 207static reloc_howto_type howto_table[] =
252b5132 208{
5f771d47
ILT
209 EMPTY_HOWTO (0),
210 EMPTY_HOWTO (1),
211 EMPTY_HOWTO (2),
212 EMPTY_HOWTO (3),
213 EMPTY_HOWTO (4),
214 EMPTY_HOWTO (5),
b7be1db6
AM
215 HOWTO (R_DIR32, /* type */
216 0, /* rightshift */
217 2, /* size (0 = byte, 1 = short, 2 = long) */
218 32, /* bitsize */
b34976b6 219 FALSE, /* pc_relative */
b7be1db6 220 0, /* bitpos */
252b5132 221 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
222 coff_i386_reloc, /* special_function */
223 "dir32", /* name */
b34976b6 224 TRUE, /* partial_inplace */
b7be1db6
AM
225 0xffffffff, /* src_mask */
226 0xffffffff, /* dst_mask */
b34976b6 227 TRUE), /* pcrel_offset */
b7be1db6
AM
228 /* PE IMAGE_REL_I386_DIR32NB relocation (7). */
229 HOWTO (R_IMAGEBASE, /* type */
230 0, /* rightshift */
231 2, /* size (0 = byte, 1 = short, 2 = long) */
232 32, /* bitsize */
b34976b6 233 FALSE, /* pc_relative */
b7be1db6 234 0, /* bitpos */
252b5132 235 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
236 coff_i386_reloc, /* special_function */
237 "rva32", /* name */
b34976b6 238 TRUE, /* partial_inplace */
b7be1db6
AM
239 0xffffffff, /* src_mask */
240 0xffffffff, /* dst_mask */
b34976b6 241 FALSE), /* pcrel_offset */
5f771d47
ILT
242 EMPTY_HOWTO (010),
243 EMPTY_HOWTO (011),
244 EMPTY_HOWTO (012),
6482c264
NC
245#ifdef COFF_WITH_PE
246 /* 32-bit longword section relative relocation (013). */
247 HOWTO (R_SECREL32, /* type */
248 0, /* rightshift */
249 2, /* size (0 = byte, 1 = short, 2 = long) */
250 32, /* bitsize */
251 FALSE, /* pc_relative */
252 0, /* bitpos */
253 complain_overflow_bitfield, /* complain_on_overflow */
254 coff_i386_reloc, /* special_function */
255 "secrel32", /* name */
256 TRUE, /* partial_inplace */
257 0xffffffff, /* src_mask */
258 0xffffffff, /* dst_mask */
259 TRUE), /* pcrel_offset */
260#else
5f771d47 261 EMPTY_HOWTO (013),
6482c264 262#endif
5f771d47
ILT
263 EMPTY_HOWTO (014),
264 EMPTY_HOWTO (015),
265 EMPTY_HOWTO (016),
00692651
ILT
266 /* Byte relocation (017). */
267 HOWTO (R_RELBYTE, /* type */
b7be1db6
AM
268 0, /* rightshift */
269 0, /* size (0 = byte, 1 = short, 2 = long) */
270 8, /* bitsize */
b34976b6 271 FALSE, /* pc_relative */
b7be1db6 272 0, /* bitpos */
252b5132 273 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
274 coff_i386_reloc, /* special_function */
275 "8", /* name */
b34976b6 276 TRUE, /* partial_inplace */
b7be1db6
AM
277 0x000000ff, /* src_mask */
278 0x000000ff, /* dst_mask */
252b5132 279 PCRELOFFSET), /* pcrel_offset */
00692651 280 /* 16-bit word relocation (020). */
b7be1db6
AM
281 HOWTO (R_RELWORD, /* type */
282 0, /* rightshift */
283 1, /* size (0 = byte, 1 = short, 2 = long) */
284 16, /* bitsize */
b34976b6 285 FALSE, /* pc_relative */
b7be1db6 286 0, /* bitpos */
252b5132 287 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
288 coff_i386_reloc, /* special_function */
289 "16", /* name */
b34976b6 290 TRUE, /* partial_inplace */
b7be1db6
AM
291 0x0000ffff, /* src_mask */
292 0x0000ffff, /* dst_mask */
252b5132 293 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
294 /* 32-bit longword relocation (021). */
295 HOWTO (R_RELLONG, /* type */
296 0, /* rightshift */
297 2, /* size (0 = byte, 1 = short, 2 = long) */
298 32, /* bitsize */
b34976b6 299 FALSE, /* pc_relative */
b7be1db6 300 0, /* bitpos */
252b5132 301 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
302 coff_i386_reloc, /* special_function */
303 "32", /* name */
b34976b6 304 TRUE, /* partial_inplace */
b7be1db6
AM
305 0xffffffff, /* src_mask */
306 0xffffffff, /* dst_mask */
252b5132 307 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
308 /* Byte PC relative relocation (022). */
309 HOWTO (R_PCRBYTE, /* type */
310 0, /* rightshift */
311 0, /* size (0 = byte, 1 = short, 2 = long) */
312 8, /* bitsize */
b34976b6 313 TRUE, /* pc_relative */
b7be1db6 314 0, /* bitpos */
252b5132 315 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
316 coff_i386_reloc, /* special_function */
317 "DISP8", /* name */
b34976b6 318 TRUE, /* partial_inplace */
b7be1db6
AM
319 0x000000ff, /* src_mask */
320 0x000000ff, /* dst_mask */
252b5132 321 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
322 /* 16-bit word PC relative relocation (023). */
323 HOWTO (R_PCRWORD, /* type */
324 0, /* rightshift */
325 1, /* size (0 = byte, 1 = short, 2 = long) */
326 16, /* bitsize */
b34976b6 327 TRUE, /* pc_relative */
b7be1db6 328 0, /* bitpos */
252b5132 329 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
330 coff_i386_reloc, /* special_function */
331 "DISP16", /* name */
b34976b6 332 TRUE, /* partial_inplace */
b7be1db6
AM
333 0x0000ffff, /* src_mask */
334 0x0000ffff, /* dst_mask */
252b5132 335 PCRELOFFSET), /* pcrel_offset */
00692651 336 /* 32-bit longword PC relative relocation (024). */
b7be1db6
AM
337 HOWTO (R_PCRLONG, /* type */
338 0, /* rightshift */
339 2, /* size (0 = byte, 1 = short, 2 = long) */
340 32, /* bitsize */
b34976b6 341 TRUE, /* pc_relative */
b7be1db6 342 0, /* bitpos */
252b5132 343 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
344 coff_i386_reloc, /* special_function */
345 "DISP32", /* name */
b34976b6 346 TRUE, /* partial_inplace */
b7be1db6
AM
347 0xffffffff, /* src_mask */
348 0xffffffff, /* dst_mask */
252b5132
RH
349 PCRELOFFSET) /* pcrel_offset */
350};
351
352/* Turn a howto into a reloc nunmber */
353
354#define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
355#define BADMAG(x) I386BADMAG(x)
356#define I386 1 /* Customize coffcode.h */
357
00692651
ILT
358#define RTYPE2HOWTO(cache_ptr, dst) \
359 ((cache_ptr)->howto = \
360 ((dst)->r_type < sizeof (howto_table) / sizeof (howto_table[0]) \
361 ? howto_table + (dst)->r_type \
362 : NULL))
252b5132
RH
363
364/* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared
365 library. On some other COFF targets STYP_BSS is normally
366 STYP_NOLOAD. */
367#define BSS_NOLOAD_IS_SHARED_LIBRARY
368
369/* Compute the addend of a reloc. If the reloc is to a common symbol,
370 the object file contains the value of the common symbol. By the
371 time this is called, the linker may be using a different symbol
372 from a different object file with a different value. Therefore, we
373 hack wildly to locate the original symbol from this file so that we
374 can make the correct adjustment. This macro sets coffsym to the
375 symbol from the original file, and uses it to set the addend value
376 correctly. If this is not a common symbol, the usual addend
377 calculation is done, except that an additional tweak is needed for
378 PC relative relocs.
379 FIXME: This macro refers to symbols and asect; these are from the
380 calling function, not the macro arguments. */
381
382#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
383 { \
384 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
385 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
386 coffsym = (obj_symbols (abfd) \
387 + (cache_ptr->sym_ptr_ptr - symbols)); \
388 else if (ptr) \
389 coffsym = coff_symbol_from (abfd, ptr); \
390 if (coffsym != (coff_symbol_type *) NULL \
391 && coffsym->native->u.syment.n_scnum == 0) \
392 cache_ptr->addend = - coffsym->native->u.syment.n_value; \
393 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
394 && ptr->section != (asection *) NULL) \
395 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
396 else \
397 cache_ptr->addend = 0; \
398 if (ptr && howto_table[reloc.r_type].pc_relative) \
399 cache_ptr->addend += asect->vma; \
400 }
401
402/* We use the special COFF backend linker. For normal i386 COFF, we
403 can use the generic relocate_section routine. For PE, we need our
404 own routine. */
405
406#ifndef COFF_WITH_PE
407
408#define coff_relocate_section _bfd_coff_generic_relocate_section
409
410#else /* COFF_WITH_PE */
411
412/* The PE relocate section routine. The only difference between this
413 and the regular routine is that we don't want to do anything for a
1049f94e 414 relocatable link. */
252b5132 415
b34976b6 416static bfd_boolean coff_pe_i386_relocate_section
252b5132
RH
417 PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *,
418 struct internal_reloc *, struct internal_syment *, asection **));
419
b34976b6 420static bfd_boolean
252b5132
RH
421coff_pe_i386_relocate_section (output_bfd, info, input_bfd,
422 input_section, contents, relocs, syms,
423 sections)
424 bfd *output_bfd;
425 struct bfd_link_info *info;
426 bfd *input_bfd;
427 asection *input_section;
428 bfd_byte *contents;
429 struct internal_reloc *relocs;
430 struct internal_syment *syms;
431 asection **sections;
432{
1049f94e 433 if (info->relocatable)
b34976b6 434 return TRUE;
252b5132
RH
435
436 return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd,
437 input_section, contents,
438 relocs, syms, sections);
439}
440
441#define coff_relocate_section coff_pe_i386_relocate_section
442
443#endif /* COFF_WITH_PE */
444
445/* Convert an rtype to howto for the COFF backend linker. */
446
447static reloc_howto_type *
448coff_i386_rtype_to_howto (abfd, sec, rel, h, sym, addendp)
5f771d47 449 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
450 asection *sec;
451 struct internal_reloc *rel;
452 struct coff_link_hash_entry *h;
453 struct internal_syment *sym;
454 bfd_vma *addendp;
455{
252b5132
RH
456 reloc_howto_type *howto;
457
50a39e97 458 if (rel->r_type >= sizeof (howto_table) / sizeof (howto_table[0]))
00692651
ILT
459 {
460 bfd_set_error (bfd_error_bad_value);
461 return NULL;
462 }
463
252b5132
RH
464 howto = howto_table + rel->r_type;
465
466#ifdef COFF_WITH_PE
00692651 467 /* Cancel out code in _bfd_coff_generic_relocate_section. */
252b5132
RH
468 *addendp = 0;
469#endif
470
471 if (howto->pc_relative)
472 *addendp += sec->vma;
473
474 if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
475 {
476 /* This is a common symbol. The section contents include the
477 size (sym->n_value) as an addend. The relocate_section
478 function will be adding in the final value of the symbol. We
479 need to subtract out the current size in order to get the
480 correct result. */
b7be1db6 481
252b5132
RH
482 BFD_ASSERT (h != NULL);
483
484#ifndef COFF_WITH_PE
485 /* I think we *do* want to bypass this. If we don't, I have
486 seen some data parameters get the wrong relocation address.
487 If I link two versions with and without this section bypassed
488 and then do a binary comparison, the addresses which are
489 different can be looked up in the map. The case in which
490 this section has been bypassed has addresses which correspond
491 to values I can find in the map. */
492 *addendp -= sym->n_value;
493#endif
494 }
495
496#ifndef COFF_WITH_PE
497 /* If the output symbol is common (in which case this must be a
1049f94e 498 relocatable link), we need to add in the final size of the
252b5132 499 common symbol. */
b7be1db6 500 if (h != NULL && h->root.type == bfd_link_hash_common)
252b5132
RH
501 *addendp += h->root.u.c.size;
502#endif
503
504#ifdef COFF_WITH_PE
505 if (howto->pc_relative)
506 {
507 *addendp -= 4;
508
509 /* If the symbol is defined, then the generic code is going to
510 add back the symbol value in order to cancel out an
511 adjustment it made to the addend. However, we set the addend
512 to 0 at the start of this function. We need to adjust here,
513 to avoid the adjustment the generic code will make. FIXME:
514 This is getting a bit hackish. */
515 if (sym != NULL && sym->n_scnum != 0)
516 *addendp -= sym->n_value;
517 }
518
8e191bd3
ILT
519 if (rel->r_type == R_IMAGEBASE
520 && (bfd_get_flavour(sec->output_section->owner)
521 == bfd_target_coff_flavour))
252b5132
RH
522 {
523 *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
524 }
6482c264 525
507f5898
MS
526 BFD_ASSERT (sym != NULL);
527 if (rel->r_type == R_SECREL32 && sym != NULL)
6482c264
NC
528 {
529 bfd_vma osect_vma;
530
531 if (h && (h->type == bfd_link_hash_defined
532 || h->type == bfd_link_hash_defweak))
533 osect_vma = h->root.u.def.section->output_section->vma;
534 else
535 {
91d6fa6a 536 asection *s;
6482c264
NC
537 int i;
538
539 /* Sigh, the only way to get the section to offset against
540 is to find it the hard way. */
541
91d6fa6a
NC
542 for (s = abfd->sections, i = 1; i < sym->n_scnum; i++)
543 s = s->next;
6482c264 544
91d6fa6a 545 osect_vma = s->output_section->vma;
6482c264
NC
546 }
547
548 *addendp -= osect_vma;
549 }
252b5132
RH
550#endif
551
552 return howto;
553}
554
252b5132 555#define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup
157090f7 556#define coff_bfd_reloc_name_lookup coff_i386_reloc_name_lookup
252b5132 557
252b5132
RH
558static reloc_howto_type *
559coff_i386_reloc_type_lookup (abfd, code)
5f771d47 560 bfd *abfd ATTRIBUTE_UNUSED;
252b5132
RH
561 bfd_reloc_code_real_type code;
562{
563 switch (code)
564 {
565 case BFD_RELOC_RVA:
b7be1db6 566 return howto_table + R_IMAGEBASE;
252b5132
RH
567 case BFD_RELOC_32:
568 return howto_table + R_DIR32;
569 case BFD_RELOC_32_PCREL:
570 return howto_table + R_PCRLONG;
b7be1db6
AM
571 case BFD_RELOC_16:
572 return howto_table + R_RELWORD;
573 case BFD_RELOC_16_PCREL:
574 return howto_table + R_PCRWORD;
575 case BFD_RELOC_8:
576 return howto_table + R_RELBYTE;
577 case BFD_RELOC_8_PCREL:
578 return howto_table + R_PCRBYTE;
6482c264
NC
579#ifdef COFF_WITH_PE
580 case BFD_RELOC_32_SECREL:
581 return howto_table + R_SECREL32;
582#endif
252b5132
RH
583 default:
584 BFD_FAIL ();
585 return 0;
586 }
587}
588
157090f7
AM
589static reloc_howto_type *
590coff_i386_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
591 const char *r_name)
592{
593 unsigned int i;
594
595 for (i = 0; i < sizeof (howto_table) / sizeof (howto_table[0]); i++)
596 if (howto_table[i].name != NULL
597 && strcasecmp (howto_table[i].name, r_name) == 0)
598 return &howto_table[i];
599
600 return NULL;
601}
602
252b5132
RH
603#define coff_rtype_to_howto coff_i386_rtype_to_howto
604
605#ifdef TARGET_UNDERSCORE
606
607/* If i386 gcc uses underscores for symbol names, then it does not use
608 a leading dot for local labels, so if TARGET_UNDERSCORE is defined
609 we treat all symbols starting with L as local. */
610
b34976b6
AM
611static bfd_boolean coff_i386_is_local_label_name
612 PARAMS ((bfd *, const char *));
252b5132 613
b34976b6 614static bfd_boolean
252b5132
RH
615coff_i386_is_local_label_name (abfd, name)
616 bfd *abfd;
617 const char *name;
618{
619 if (name[0] == 'L')
b34976b6 620 return TRUE;
252b5132
RH
621
622 return _bfd_coff_is_local_label_name (abfd, name);
623}
624
625#define coff_bfd_is_local_label_name coff_i386_is_local_label_name
626
627#endif /* TARGET_UNDERSCORE */
628
629#include "coffcode.h"
630
252b5132
RH
631const bfd_target
632#ifdef TARGET_SYM
633 TARGET_SYM =
634#else
635 i386coff_vec =
636#endif
637{
638#ifdef TARGET_NAME
639 TARGET_NAME,
640#else
641 "coff-i386", /* name */
642#endif
643 bfd_target_coff_flavour,
644 BFD_ENDIAN_LITTLE, /* data byte order is little */
645 BFD_ENDIAN_LITTLE, /* header byte order is little */
646
647 (HAS_RELOC | EXEC_P | /* object flags */
648 HAS_LINENO | HAS_DEBUG |
649 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
650
252b5132 651 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
6fb72d08 652#ifdef COFF_WITH_PE
baf80c32 653 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY
252b5132 654#endif
6fb72d08 655 | SEC_CODE | SEC_DATA),
252b5132
RH
656
657#ifdef TARGET_UNDERSCORE
658 TARGET_UNDERSCORE, /* leading underscore */
659#else
660 0, /* leading underscore */
661#endif
662 '/', /* ar_pad_char */
663 15, /* ar_max_namelen */
0aabe54e 664 0, /* match priority. */
252b5132
RH
665
666 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
667 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
668 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
669 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
670 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
671 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
672
5fcfd273 673/* Note that we allow an object file to be treated as a core file as well. */
cb665cd3
NC
674 {_bfd_dummy_target, coff_object_p, /* bfd_check_format */
675 bfd_generic_archive_p, coff_object_p},
252b5132
RH
676 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */
677 bfd_false},
678 {bfd_false, coff_write_object_contents, /* bfd_write_contents */
679 _bfd_write_archive_contents, bfd_false},
680
681 BFD_JUMP_TABLE_GENERIC (coff),
682 BFD_JUMP_TABLE_COPY (coff),
683 BFD_JUMP_TABLE_CORE (_bfd_nocore),
684 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
685 BFD_JUMP_TABLE_SYMBOLS (coff),
686 BFD_JUMP_TABLE_RELOCS (coff),
687 BFD_JUMP_TABLE_WRITE (coff),
688 BFD_JUMP_TABLE_LINK (coff),
689 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
690
c3c89269 691 NULL,
b7be1db6 692
c3c89269 693 COFF_SWAP_TABLE
252b5132 694};
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