Add support to readelf to display NetBSD auxv notes in core files.
[deliverable/binutils-gdb.git] / bfd / coff-i386.c
CommitLineData
252b5132 1/* BFD back-end for Intel 386 COFF files.
82704155 2 Copyright (C) 1990-2019 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
b23dc97f
NC
147 if (! bfd_reloc_offset_in_range (howto, abfd, input_section,
148 reloc_entry->address
149 * bfd_octets_per_byte (abfd)))
150 return bfd_reloc_outofrange;
151
ec70be9f
NC
152 switch (howto->size)
153 {
154 case 0:
155 {
156 char x = bfd_get_8 (abfd, addr);
157 DOIT (x);
158 bfd_put_8 (abfd, x, addr);
159 }
160 break;
252b5132 161
ec70be9f 162 case 1:
252b5132 163 {
ec70be9f
NC
164 short x = bfd_get_16 (abfd, addr);
165 DOIT (x);
166 bfd_put_16 (abfd, (bfd_vma) x, addr);
252b5132 167 }
ec70be9f
NC
168 break;
169
170 case 2:
171 {
172 long x = bfd_get_32 (abfd, addr);
173 DOIT (x);
174 bfd_put_32 (abfd, (bfd_vma) x, addr);
175 }
176 break;
177
178 default:
179 abort ();
180 }
181 }
252b5132
RH
182
183 /* Now let bfd_perform_relocation finish everything up. */
184 return bfd_reloc_continue;
185}
186
187#ifdef COFF_WITH_PE
b34976b6 188/* Return TRUE if this relocation should appear in the output .reloc
6fb72d08
ILT
189 section. */
190
2c3fc389
NC
191static bfd_boolean in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED,
192 reloc_howto_type *howto)
252b5132 193{
b706dc83
KT
194 return ! howto->pc_relative && howto->type != R_IMAGEBASE
195 && howto->type != R_SECREL32;
b7be1db6 196}
6fb72d08 197#endif /* COFF_WITH_PE */
252b5132
RH
198
199#ifndef PCRELOFFSET
b34976b6 200#define PCRELOFFSET FALSE
252b5132
RH
201#endif
202
b7be1db6 203static reloc_howto_type howto_table[] =
252b5132 204{
5f771d47
ILT
205 EMPTY_HOWTO (0),
206 EMPTY_HOWTO (1),
207 EMPTY_HOWTO (2),
208 EMPTY_HOWTO (3),
209 EMPTY_HOWTO (4),
210 EMPTY_HOWTO (5),
b7be1db6
AM
211 HOWTO (R_DIR32, /* type */
212 0, /* rightshift */
213 2, /* size (0 = byte, 1 = short, 2 = long) */
214 32, /* bitsize */
b34976b6 215 FALSE, /* pc_relative */
b7be1db6 216 0, /* bitpos */
252b5132 217 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
218 coff_i386_reloc, /* special_function */
219 "dir32", /* name */
b34976b6 220 TRUE, /* partial_inplace */
b7be1db6
AM
221 0xffffffff, /* src_mask */
222 0xffffffff, /* dst_mask */
b34976b6 223 TRUE), /* pcrel_offset */
b7be1db6
AM
224 /* PE IMAGE_REL_I386_DIR32NB relocation (7). */
225 HOWTO (R_IMAGEBASE, /* type */
226 0, /* rightshift */
227 2, /* size (0 = byte, 1 = short, 2 = long) */
228 32, /* bitsize */
b34976b6 229 FALSE, /* pc_relative */
b7be1db6 230 0, /* bitpos */
252b5132 231 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
232 coff_i386_reloc, /* special_function */
233 "rva32", /* name */
b34976b6 234 TRUE, /* partial_inplace */
b7be1db6
AM
235 0xffffffff, /* src_mask */
236 0xffffffff, /* dst_mask */
b34976b6 237 FALSE), /* pcrel_offset */
5f771d47
ILT
238 EMPTY_HOWTO (010),
239 EMPTY_HOWTO (011),
240 EMPTY_HOWTO (012),
6482c264
NC
241#ifdef COFF_WITH_PE
242 /* 32-bit longword section relative relocation (013). */
243 HOWTO (R_SECREL32, /* type */
244 0, /* rightshift */
245 2, /* size (0 = byte, 1 = short, 2 = long) */
246 32, /* bitsize */
247 FALSE, /* pc_relative */
248 0, /* bitpos */
249 complain_overflow_bitfield, /* complain_on_overflow */
250 coff_i386_reloc, /* special_function */
251 "secrel32", /* name */
252 TRUE, /* partial_inplace */
253 0xffffffff, /* src_mask */
254 0xffffffff, /* dst_mask */
255 TRUE), /* pcrel_offset */
256#else
5f771d47 257 EMPTY_HOWTO (013),
6482c264 258#endif
5f771d47
ILT
259 EMPTY_HOWTO (014),
260 EMPTY_HOWTO (015),
261 EMPTY_HOWTO (016),
00692651
ILT
262 /* Byte relocation (017). */
263 HOWTO (R_RELBYTE, /* type */
b7be1db6
AM
264 0, /* rightshift */
265 0, /* size (0 = byte, 1 = short, 2 = long) */
266 8, /* bitsize */
b34976b6 267 FALSE, /* pc_relative */
b7be1db6 268 0, /* bitpos */
252b5132 269 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
270 coff_i386_reloc, /* special_function */
271 "8", /* name */
b34976b6 272 TRUE, /* partial_inplace */
b7be1db6
AM
273 0x000000ff, /* src_mask */
274 0x000000ff, /* dst_mask */
252b5132 275 PCRELOFFSET), /* pcrel_offset */
00692651 276 /* 16-bit word relocation (020). */
b7be1db6
AM
277 HOWTO (R_RELWORD, /* type */
278 0, /* rightshift */
279 1, /* size (0 = byte, 1 = short, 2 = long) */
280 16, /* bitsize */
b34976b6 281 FALSE, /* pc_relative */
b7be1db6 282 0, /* bitpos */
252b5132 283 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
284 coff_i386_reloc, /* special_function */
285 "16", /* name */
b34976b6 286 TRUE, /* partial_inplace */
b7be1db6
AM
287 0x0000ffff, /* src_mask */
288 0x0000ffff, /* dst_mask */
252b5132 289 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
290 /* 32-bit longword relocation (021). */
291 HOWTO (R_RELLONG, /* type */
292 0, /* rightshift */
293 2, /* size (0 = byte, 1 = short, 2 = long) */
294 32, /* bitsize */
b34976b6 295 FALSE, /* pc_relative */
b7be1db6 296 0, /* bitpos */
252b5132 297 complain_overflow_bitfield, /* complain_on_overflow */
b7be1db6
AM
298 coff_i386_reloc, /* special_function */
299 "32", /* name */
b34976b6 300 TRUE, /* partial_inplace */
b7be1db6
AM
301 0xffffffff, /* src_mask */
302 0xffffffff, /* dst_mask */
252b5132 303 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
304 /* Byte PC relative relocation (022). */
305 HOWTO (R_PCRBYTE, /* type */
306 0, /* rightshift */
307 0, /* size (0 = byte, 1 = short, 2 = long) */
308 8, /* bitsize */
b34976b6 309 TRUE, /* pc_relative */
b7be1db6 310 0, /* bitpos */
252b5132 311 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
312 coff_i386_reloc, /* special_function */
313 "DISP8", /* name */
b34976b6 314 TRUE, /* partial_inplace */
b7be1db6
AM
315 0x000000ff, /* src_mask */
316 0x000000ff, /* dst_mask */
252b5132 317 PCRELOFFSET), /* pcrel_offset */
b7be1db6
AM
318 /* 16-bit word PC relative relocation (023). */
319 HOWTO (R_PCRWORD, /* type */
320 0, /* rightshift */
321 1, /* size (0 = byte, 1 = short, 2 = long) */
322 16, /* bitsize */
b34976b6 323 TRUE, /* pc_relative */
b7be1db6 324 0, /* bitpos */
252b5132 325 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
326 coff_i386_reloc, /* special_function */
327 "DISP16", /* name */
b34976b6 328 TRUE, /* partial_inplace */
b7be1db6
AM
329 0x0000ffff, /* src_mask */
330 0x0000ffff, /* dst_mask */
252b5132 331 PCRELOFFSET), /* pcrel_offset */
00692651 332 /* 32-bit longword PC relative relocation (024). */
b7be1db6
AM
333 HOWTO (R_PCRLONG, /* type */
334 0, /* rightshift */
335 2, /* size (0 = byte, 1 = short, 2 = long) */
336 32, /* bitsize */
b34976b6 337 TRUE, /* pc_relative */
b7be1db6 338 0, /* bitpos */
252b5132 339 complain_overflow_signed, /* complain_on_overflow */
b7be1db6
AM
340 coff_i386_reloc, /* special_function */
341 "DISP32", /* name */
b34976b6 342 TRUE, /* partial_inplace */
b7be1db6
AM
343 0xffffffff, /* src_mask */
344 0xffffffff, /* dst_mask */
252b5132
RH
345 PCRELOFFSET) /* pcrel_offset */
346};
347
36e9d67b
NC
348#define NUM_HOWTOS (sizeof (howto_table) / sizeof (howto_table[0]))
349
252b5132
RH
350/* Turn a howto into a reloc nunmber */
351
352#define SELECT_RELOC(x,howto) { x.r_type = howto->type; }
353#define BADMAG(x) I386BADMAG(x)
354#define I386 1 /* Customize coffcode.h */
355
36e9d67b
NC
356#define RTYPE2HOWTO(cache_ptr, dst) \
357 ((cache_ptr)->howto = \
358 ((dst)->r_type < NUM_HOWTOS \
359 ? howto_table + (dst)->r_type \
00692651 360 : NULL))
252b5132
RH
361
362/* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared
363 library. On some other COFF targets STYP_BSS is normally
364 STYP_NOLOAD. */
365#define BSS_NOLOAD_IS_SHARED_LIBRARY
366
367/* Compute the addend of a reloc. If the reloc is to a common symbol,
368 the object file contains the value of the common symbol. By the
369 time this is called, the linker may be using a different symbol
370 from a different object file with a different value. Therefore, we
371 hack wildly to locate the original symbol from this file so that we
372 can make the correct adjustment. This macro sets coffsym to the
373 symbol from the original file, and uses it to set the addend value
374 correctly. If this is not a common symbol, the usual addend
375 calculation is done, except that an additional tweak is needed for
376 PC relative relocs.
377 FIXME: This macro refers to symbols and asect; these are from the
378 calling function, not the macro arguments. */
379
380#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
381 { \
382 coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
383 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
384 coffsym = (obj_symbols (abfd) \
07d6d2b8 385 + (cache_ptr->sym_ptr_ptr - symbols)); \
252b5132 386 else if (ptr) \
f4943d82 387 coffsym = coff_symbol_from (ptr); \
252b5132
RH
388 if (coffsym != (coff_symbol_type *) NULL \
389 && coffsym->native->u.syment.n_scnum == 0) \
390 cache_ptr->addend = - coffsym->native->u.syment.n_value; \
391 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
392 && ptr->section != (asection *) NULL) \
393 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
394 else \
395 cache_ptr->addend = 0; \
36e9d67b
NC
396 if (ptr && reloc.r_type < NUM_HOWTOS \
397 && howto_table[reloc.r_type].pc_relative) \
252b5132
RH
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
2c3fc389
NC
416coff_pe_i386_relocate_section (bfd *output_bfd,
417 struct bfd_link_info *info,
418 bfd *input_bfd,
419 asection *input_section,
420 bfd_byte *contents,
421 struct internal_reloc *relocs,
422 struct internal_syment *syms,
423 asection **sections)
252b5132 424{
0e1862bb 425 if (bfd_link_relocatable (info))
b34976b6 426 return TRUE;
252b5132
RH
427
428 return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd,
429 input_section, contents,
430 relocs, syms, sections);
431}
432
433#define coff_relocate_section coff_pe_i386_relocate_section
434
435#endif /* COFF_WITH_PE */
436
437/* Convert an rtype to howto for the COFF backend linker. */
438
439static reloc_howto_type *
2c3fc389
NC
440coff_i386_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
441 asection *sec,
442 struct internal_reloc *rel,
443 struct coff_link_hash_entry *h,
444 struct internal_syment *sym,
445 bfd_vma *addendp)
252b5132 446{
252b5132
RH
447 reloc_howto_type *howto;
448
36e9d67b 449 if (rel->r_type >= NUM_HOWTOS)
00692651
ILT
450 {
451 bfd_set_error (bfd_error_bad_value);
452 return NULL;
453 }
454
252b5132
RH
455 howto = howto_table + rel->r_type;
456
457#ifdef COFF_WITH_PE
00692651 458 /* Cancel out code in _bfd_coff_generic_relocate_section. */
252b5132
RH
459 *addendp = 0;
460#endif
461
462 if (howto->pc_relative)
463 *addendp += sec->vma;
464
465 if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
466 {
467 /* This is a common symbol. The section contents include the
468 size (sym->n_value) as an addend. The relocate_section
469 function will be adding in the final value of the symbol. We
470 need to subtract out the current size in order to get the
471 correct result. */
b7be1db6 472
252b5132
RH
473 BFD_ASSERT (h != NULL);
474
475#ifndef COFF_WITH_PE
476 /* I think we *do* want to bypass this. If we don't, I have
477 seen some data parameters get the wrong relocation address.
478 If I link two versions with and without this section bypassed
479 and then do a binary comparison, the addresses which are
480 different can be looked up in the map. The case in which
481 this section has been bypassed has addresses which correspond
482 to values I can find in the map. */
483 *addendp -= sym->n_value;
484#endif
485 }
486
487#ifndef COFF_WITH_PE
488 /* If the output symbol is common (in which case this must be a
1049f94e 489 relocatable link), we need to add in the final size of the
252b5132 490 common symbol. */
b7be1db6 491 if (h != NULL && h->root.type == bfd_link_hash_common)
252b5132
RH
492 *addendp += h->root.u.c.size;
493#endif
494
495#ifdef COFF_WITH_PE
496 if (howto->pc_relative)
497 {
498 *addendp -= 4;
499
500 /* If the symbol is defined, then the generic code is going to
07d6d2b8
AM
501 add back the symbol value in order to cancel out an
502 adjustment it made to the addend. However, we set the addend
503 to 0 at the start of this function. We need to adjust here,
504 to avoid the adjustment the generic code will make. FIXME:
505 This is getting a bit hackish. */
252b5132
RH
506 if (sym != NULL && sym->n_scnum != 0)
507 *addendp -= sym->n_value;
508 }
509
8e191bd3
ILT
510 if (rel->r_type == R_IMAGEBASE
511 && (bfd_get_flavour(sec->output_section->owner)
512 == bfd_target_coff_flavour))
252b5132
RH
513 {
514 *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase;
515 }
6482c264 516
a93d5cb1
NC
517 /* PR 17099 - Absolute R_PCRLONG relocations do not need a symbol. */
518 if (rel->r_type == R_PCRLONG && sym == NULL)
519 *addendp -= rel->r_vaddr;
520 else
521 BFD_ASSERT (sym != NULL);
522
507f5898 523 if (rel->r_type == R_SECREL32 && sym != NULL)
6482c264
NC
524 {
525 bfd_vma osect_vma;
526
8a5dcf53
AM
527 if (h && (h->root.type == bfd_link_hash_defined
528 || h->root.type == bfd_link_hash_defweak))
6482c264
NC
529 osect_vma = h->root.u.def.section->output_section->vma;
530 else
531 {
91d6fa6a 532 asection *s;
6482c264
NC
533 int i;
534
535 /* Sigh, the only way to get the section to offset against
536 is to find it the hard way. */
537
91d6fa6a
NC
538 for (s = abfd->sections, i = 1; i < sym->n_scnum; i++)
539 s = s->next;
6482c264 540
91d6fa6a 541 osect_vma = s->output_section->vma;
6482c264
NC
542 }
543
544 *addendp -= osect_vma;
545 }
252b5132
RH
546#endif
547
548 return howto;
549}
550
252b5132 551#define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup
157090f7 552#define coff_bfd_reloc_name_lookup coff_i386_reloc_name_lookup
252b5132 553
252b5132 554static reloc_howto_type *
2c3fc389
NC
555coff_i386_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
556 bfd_reloc_code_real_type code)
252b5132
RH
557{
558 switch (code)
559 {
560 case BFD_RELOC_RVA:
b7be1db6 561 return howto_table + R_IMAGEBASE;
252b5132
RH
562 case BFD_RELOC_32:
563 return howto_table + R_DIR32;
564 case BFD_RELOC_32_PCREL:
565 return howto_table + R_PCRLONG;
b7be1db6
AM
566 case BFD_RELOC_16:
567 return howto_table + R_RELWORD;
568 case BFD_RELOC_16_PCREL:
569 return howto_table + R_PCRWORD;
570 case BFD_RELOC_8:
571 return howto_table + R_RELBYTE;
572 case BFD_RELOC_8_PCREL:
573 return howto_table + R_PCRBYTE;
6482c264
NC
574#ifdef COFF_WITH_PE
575 case BFD_RELOC_32_SECREL:
576 return howto_table + R_SECREL32;
577#endif
252b5132
RH
578 default:
579 BFD_FAIL ();
580 return 0;
581 }
582}
583
157090f7
AM
584static reloc_howto_type *
585coff_i386_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
586 const char *r_name)
587{
588 unsigned int i;
589
36e9d67b 590 for (i = 0; i < NUM_HOWTOS; i++)
157090f7
AM
591 if (howto_table[i].name != NULL
592 && strcasecmp (howto_table[i].name, r_name) == 0)
593 return &howto_table[i];
594
595 return NULL;
596}
597
252b5132
RH
598#define coff_rtype_to_howto coff_i386_rtype_to_howto
599
600#ifdef TARGET_UNDERSCORE
601
602/* If i386 gcc uses underscores for symbol names, then it does not use
603 a leading dot for local labels, so if TARGET_UNDERSCORE is defined
604 we treat all symbols starting with L as local. */
605
b34976b6 606static bfd_boolean
2c3fc389 607coff_i386_is_local_label_name (bfd *abfd, const char *name)
252b5132
RH
608{
609 if (name[0] == 'L')
b34976b6 610 return TRUE;
252b5132
RH
611
612 return _bfd_coff_is_local_label_name (abfd, name);
613}
614
615#define coff_bfd_is_local_label_name coff_i386_is_local_label_name
616
617#endif /* TARGET_UNDERSCORE */
618
619#include "coffcode.h"
620
252b5132
RH
621const bfd_target
622#ifdef TARGET_SYM
623 TARGET_SYM =
624#else
6d00b590 625 i386_coff_vec =
252b5132
RH
626#endif
627{
628#ifdef TARGET_NAME
629 TARGET_NAME,
630#else
631 "coff-i386", /* name */
632#endif
633 bfd_target_coff_flavour,
634 BFD_ENDIAN_LITTLE, /* data byte order is little */
635 BFD_ENDIAN_LITTLE, /* header byte order is little */
636
637 (HAS_RELOC | EXEC_P | /* object flags */
638 HAS_LINENO | HAS_DEBUG |
a29a8af8 639 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED | BFD_COMPRESS | BFD_DECOMPRESS ),
252b5132 640
252b5132 641 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */
6fb72d08 642#ifdef COFF_WITH_PE
a29a8af8 643 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | SEC_READONLY | SEC_DEBUGGING
252b5132 644#endif
a29a8af8 645 | SEC_CODE | SEC_DATA | SEC_EXCLUDE ),
252b5132
RH
646
647#ifdef TARGET_UNDERSCORE
648 TARGET_UNDERSCORE, /* leading underscore */
649#else
650 0, /* leading underscore */
651#endif
652 '/', /* ar_pad_char */
653 15, /* ar_max_namelen */
0aabe54e 654 0, /* match priority. */
252b5132
RH
655
656 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
657 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
658 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */
659 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
660 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
661 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */
662
5fcfd273 663/* Note that we allow an object file to be treated as a core file as well. */
4b24dd1a 664
156f6ad8 665#ifdef COFF_CHECK_FORMAT
d00dd7dc
AM
666 { /* bfd_check_format */
667 _bfd_dummy_target,
668 COFF_CHECK_FORMAT,
669 bfd_generic_archive_p,
670 COFF_CHECK_FORMAT
671 },
156f6ad8 672#else
d00dd7dc
AM
673 {
674 _bfd_dummy_target,
675 coff_object_p,
676 bfd_generic_archive_p,
677 coff_object_p
678 },
156f6ad8 679#endif
d00dd7dc
AM
680 { /* bfd_set_format */
681 _bfd_bool_bfd_false_error,
682 coff_mkobject,
683 _bfd_generic_mkarchive,
684 _bfd_bool_bfd_false_error
685 },
686 { /* bfd_write_contents */
687 _bfd_bool_bfd_false_error,
688 coff_write_object_contents,
689 _bfd_write_archive_contents,
690 _bfd_bool_bfd_false_error
691 },
692
693 BFD_JUMP_TABLE_GENERIC (coff),
694 BFD_JUMP_TABLE_COPY (coff),
695 BFD_JUMP_TABLE_CORE (_bfd_nocore),
696 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
697 BFD_JUMP_TABLE_SYMBOLS (coff),
698 BFD_JUMP_TABLE_RELOCS (coff),
699 BFD_JUMP_TABLE_WRITE (coff),
700 BFD_JUMP_TABLE_LINK (coff),
701 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
252b5132 702
c3c89269 703 NULL,
b7be1db6 704
c3c89269 705 COFF_SWAP_TABLE
252b5132 706};
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