Commit | Line | Data |
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252b5132 | 1 | /* BFD back-end for Intel 386 COFF files. |
305c7206 | 2 | Copyright 1990, 91, 92, 93, 94, 95, 96, 97, 98, 99, 2000 |
252b5132 RH |
3 | Free Software Foundation, Inc. |
4 | Written by Cygnus Support. | |
5 | ||
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with this program; if not, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ | |
21 | ||
22 | #include "bfd.h" | |
23 | #include "sysdep.h" | |
24 | #include "libbfd.h" | |
25 | ||
26 | #include "coff/i386.h" | |
27 | ||
28 | #include "coff/internal.h" | |
29 | ||
30 | #ifdef COFF_WITH_PE | |
31 | #include "coff/pe.h" | |
32 | #endif | |
33 | ||
34 | #ifdef COFF_GO32_EXE | |
35 | #include "coff/go32exe.h" | |
36 | #endif | |
37 | ||
38 | #include "libcoff.h" | |
39 | ||
b7be1db6 | 40 | static bfd_reloc_status_type coff_i386_reloc |
252b5132 RH |
41 | PARAMS ((bfd *, arelent *, asymbol *, PTR, asection *, bfd *, char **)); |
42 | static reloc_howto_type *coff_i386_rtype_to_howto | |
43 | PARAMS ((bfd *, asection *, struct internal_reloc *, | |
44 | struct coff_link_hash_entry *, struct internal_syment *, | |
252b5132 | 45 | bfd_vma *)); |
00692651 ILT |
46 | static reloc_howto_type *coff_i386_reloc_type_lookup |
47 | PARAMS ((bfd *, bfd_reloc_code_real_type)); | |
252b5132 RH |
48 | |
49 | #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER (2) | |
50 | /* The page size is a guess based on ELF. */ | |
51 | ||
52 | #define COFF_PAGE_SIZE 0x1000 | |
53 | ||
54 | /* For some reason when using i386 COFF the value stored in the .text | |
55 | section for a reference to a common symbol is the value itself plus | |
56 | any desired offset. Ian Taylor, Cygnus Support. */ | |
57 | ||
58 | /* If we are producing relocateable output, we need to do some | |
59 | adjustments to the object file that are not done by the | |
60 | bfd_perform_relocation function. This function is called by every | |
61 | reloc type to make any required adjustments. */ | |
62 | ||
63 | static bfd_reloc_status_type | |
64 | coff_i386_reloc (abfd, reloc_entry, symbol, data, input_section, output_bfd, | |
65 | error_message) | |
66 | bfd *abfd; | |
67 | arelent *reloc_entry; | |
68 | asymbol *symbol; | |
69 | PTR data; | |
5f771d47 | 70 | asection *input_section ATTRIBUTE_UNUSED; |
252b5132 | 71 | bfd *output_bfd; |
5f771d47 | 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 | |
105 | relocateable output. This seems to be always wrong for 386 | |
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. */ | |
119 | if (howto->pc_relative == true && howto->pcrel_offset == true) | |
120 | diff = -(1 << howto->size); | |
121 | else | |
122 | diff = -reloc_entry->addend; | |
123 | } | |
124 | else | |
125 | #endif | |
126 | diff = reloc_entry->addend; | |
252b5132 RH |
127 | } |
128 | ||
129 | #ifdef COFF_WITH_PE | |
130 | /* FIXME: How should this case be handled? */ | |
00692651 ILT |
131 | if (reloc_entry->howto->type == R_IMAGEBASE) |
132 | diff -= pe_data (output_bfd)->pe_opthdr.ImageBase; | |
252b5132 RH |
133 | #endif |
134 | ||
135 | #define DOIT(x) \ | |
136 | x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + diff) & howto->dst_mask)) | |
137 | ||
138 | if (diff != 0) | |
139 | { | |
140 | reloc_howto_type *howto = reloc_entry->howto; | |
141 | unsigned char *addr = (unsigned char *) data + reloc_entry->address; | |
142 | ||
143 | switch (howto->size) | |
144 | { | |
145 | case 0: | |
146 | { | |
147 | char x = bfd_get_8 (abfd, addr); | |
148 | DOIT (x); | |
149 | bfd_put_8 (abfd, x, addr); | |
150 | } | |
151 | break; | |
152 | ||
153 | case 1: | |
154 | { | |
155 | short x = bfd_get_16 (abfd, addr); | |
156 | DOIT (x); | |
157 | bfd_put_16 (abfd, x, addr); | |
158 | } | |
159 | break; | |
160 | ||
161 | case 2: | |
162 | { | |
163 | long x = bfd_get_32 (abfd, addr); | |
164 | DOIT (x); | |
165 | bfd_put_32 (abfd, x, addr); | |
166 | } | |
167 | break; | |
168 | ||
169 | default: | |
170 | abort (); | |
171 | } | |
172 | } | |
173 | ||
174 | /* Now let bfd_perform_relocation finish everything up. */ | |
175 | return bfd_reloc_continue; | |
176 | } | |
177 | ||
178 | #ifdef COFF_WITH_PE | |
6fb72d08 ILT |
179 | /* Return true if this relocation should appear in the output .reloc |
180 | section. */ | |
181 | ||
182 | static boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *)); | |
183 | ||
184 | static boolean in_reloc_p (abfd, howto) | |
60bcf0fa | 185 | bfd * abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
186 | reloc_howto_type *howto; |
187 | { | |
188 | return ! howto->pc_relative && howto->type != R_IMAGEBASE; | |
b7be1db6 | 189 | } |
6fb72d08 | 190 | #endif /* COFF_WITH_PE */ |
252b5132 RH |
191 | |
192 | #ifndef PCRELOFFSET | |
193 | #define PCRELOFFSET false | |
194 | #endif | |
195 | ||
b7be1db6 | 196 | static reloc_howto_type howto_table[] = |
252b5132 | 197 | { |
5f771d47 ILT |
198 | EMPTY_HOWTO (0), |
199 | EMPTY_HOWTO (1), | |
200 | EMPTY_HOWTO (2), | |
201 | EMPTY_HOWTO (3), | |
202 | EMPTY_HOWTO (4), | |
203 | EMPTY_HOWTO (5), | |
b7be1db6 AM |
204 | HOWTO (R_DIR32, /* type */ |
205 | 0, /* rightshift */ | |
206 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
207 | 32, /* bitsize */ | |
208 | false, /* pc_relative */ | |
209 | 0, /* bitpos */ | |
252b5132 | 210 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
211 | coff_i386_reloc, /* special_function */ |
212 | "dir32", /* name */ | |
213 | true, /* partial_inplace */ | |
214 | 0xffffffff, /* src_mask */ | |
215 | 0xffffffff, /* dst_mask */ | |
216 | true), /* pcrel_offset */ | |
217 | /* PE IMAGE_REL_I386_DIR32NB relocation (7). */ | |
218 | HOWTO (R_IMAGEBASE, /* type */ | |
219 | 0, /* rightshift */ | |
220 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
221 | 32, /* bitsize */ | |
222 | false, /* pc_relative */ | |
223 | 0, /* bitpos */ | |
252b5132 | 224 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
225 | coff_i386_reloc, /* special_function */ |
226 | "rva32", /* name */ | |
227 | true, /* partial_inplace */ | |
228 | 0xffffffff, /* src_mask */ | |
229 | 0xffffffff, /* dst_mask */ | |
230 | false), /* pcrel_offset */ | |
5f771d47 ILT |
231 | EMPTY_HOWTO (010), |
232 | EMPTY_HOWTO (011), | |
233 | EMPTY_HOWTO (012), | |
234 | EMPTY_HOWTO (013), | |
235 | EMPTY_HOWTO (014), | |
236 | EMPTY_HOWTO (015), | |
237 | EMPTY_HOWTO (016), | |
00692651 ILT |
238 | /* Byte relocation (017). */ |
239 | HOWTO (R_RELBYTE, /* type */ | |
b7be1db6 AM |
240 | 0, /* rightshift */ |
241 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
242 | 8, /* bitsize */ | |
243 | false, /* pc_relative */ | |
244 | 0, /* bitpos */ | |
252b5132 | 245 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
246 | coff_i386_reloc, /* special_function */ |
247 | "8", /* name */ | |
248 | true, /* partial_inplace */ | |
249 | 0x000000ff, /* src_mask */ | |
250 | 0x000000ff, /* dst_mask */ | |
252b5132 | 251 | PCRELOFFSET), /* pcrel_offset */ |
00692651 | 252 | /* 16-bit word relocation (020). */ |
b7be1db6 AM |
253 | HOWTO (R_RELWORD, /* type */ |
254 | 0, /* rightshift */ | |
255 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
256 | 16, /* bitsize */ | |
257 | false, /* pc_relative */ | |
258 | 0, /* bitpos */ | |
252b5132 | 259 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
260 | coff_i386_reloc, /* special_function */ |
261 | "16", /* name */ | |
262 | true, /* partial_inplace */ | |
263 | 0x0000ffff, /* src_mask */ | |
264 | 0x0000ffff, /* dst_mask */ | |
252b5132 | 265 | PCRELOFFSET), /* pcrel_offset */ |
b7be1db6 AM |
266 | /* 32-bit longword relocation (021). */ |
267 | HOWTO (R_RELLONG, /* type */ | |
268 | 0, /* rightshift */ | |
269 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
270 | 32, /* bitsize */ | |
271 | false, /* pc_relative */ | |
272 | 0, /* bitpos */ | |
252b5132 | 273 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
274 | coff_i386_reloc, /* special_function */ |
275 | "32", /* name */ | |
276 | true, /* partial_inplace */ | |
277 | 0xffffffff, /* src_mask */ | |
278 | 0xffffffff, /* dst_mask */ | |
252b5132 | 279 | PCRELOFFSET), /* pcrel_offset */ |
b7be1db6 AM |
280 | /* Byte PC relative relocation (022). */ |
281 | HOWTO (R_PCRBYTE, /* type */ | |
282 | 0, /* rightshift */ | |
283 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
284 | 8, /* bitsize */ | |
285 | true, /* pc_relative */ | |
286 | 0, /* bitpos */ | |
252b5132 | 287 | complain_overflow_signed, /* complain_on_overflow */ |
b7be1db6 AM |
288 | coff_i386_reloc, /* special_function */ |
289 | "DISP8", /* name */ | |
290 | true, /* partial_inplace */ | |
291 | 0x000000ff, /* src_mask */ | |
292 | 0x000000ff, /* dst_mask */ | |
252b5132 | 293 | PCRELOFFSET), /* pcrel_offset */ |
b7be1db6 AM |
294 | /* 16-bit word PC relative relocation (023). */ |
295 | HOWTO (R_PCRWORD, /* type */ | |
296 | 0, /* rightshift */ | |
297 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
298 | 16, /* bitsize */ | |
299 | true, /* pc_relative */ | |
300 | 0, /* bitpos */ | |
252b5132 | 301 | complain_overflow_signed, /* complain_on_overflow */ |
b7be1db6 AM |
302 | coff_i386_reloc, /* special_function */ |
303 | "DISP16", /* name */ | |
304 | true, /* partial_inplace */ | |
305 | 0x0000ffff, /* src_mask */ | |
306 | 0x0000ffff, /* dst_mask */ | |
252b5132 | 307 | PCRELOFFSET), /* pcrel_offset */ |
00692651 | 308 | /* 32-bit longword PC relative relocation (024). */ |
b7be1db6 AM |
309 | HOWTO (R_PCRLONG, /* type */ |
310 | 0, /* rightshift */ | |
311 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
312 | 32, /* bitsize */ | |
313 | true, /* pc_relative */ | |
314 | 0, /* bitpos */ | |
252b5132 | 315 | complain_overflow_signed, /* complain_on_overflow */ |
b7be1db6 AM |
316 | coff_i386_reloc, /* special_function */ |
317 | "DISP32", /* name */ | |
318 | true, /* partial_inplace */ | |
319 | 0xffffffff, /* src_mask */ | |
320 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
321 | PCRELOFFSET) /* pcrel_offset */ |
322 | }; | |
323 | ||
324 | /* Turn a howto into a reloc nunmber */ | |
325 | ||
326 | #define SELECT_RELOC(x,howto) { x.r_type = howto->type; } | |
327 | #define BADMAG(x) I386BADMAG(x) | |
328 | #define I386 1 /* Customize coffcode.h */ | |
329 | ||
00692651 ILT |
330 | #define RTYPE2HOWTO(cache_ptr, dst) \ |
331 | ((cache_ptr)->howto = \ | |
332 | ((dst)->r_type < sizeof (howto_table) / sizeof (howto_table[0]) \ | |
333 | ? howto_table + (dst)->r_type \ | |
334 | : NULL)) | |
252b5132 RH |
335 | |
336 | /* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared | |
337 | library. On some other COFF targets STYP_BSS is normally | |
338 | STYP_NOLOAD. */ | |
339 | #define BSS_NOLOAD_IS_SHARED_LIBRARY | |
340 | ||
341 | /* Compute the addend of a reloc. If the reloc is to a common symbol, | |
342 | the object file contains the value of the common symbol. By the | |
343 | time this is called, the linker may be using a different symbol | |
344 | from a different object file with a different value. Therefore, we | |
345 | hack wildly to locate the original symbol from this file so that we | |
346 | can make the correct adjustment. This macro sets coffsym to the | |
347 | symbol from the original file, and uses it to set the addend value | |
348 | correctly. If this is not a common symbol, the usual addend | |
349 | calculation is done, except that an additional tweak is needed for | |
350 | PC relative relocs. | |
351 | FIXME: This macro refers to symbols and asect; these are from the | |
352 | calling function, not the macro arguments. */ | |
353 | ||
354 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ | |
355 | { \ | |
356 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
357 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
358 | coffsym = (obj_symbols (abfd) \ | |
359 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
360 | else if (ptr) \ | |
361 | coffsym = coff_symbol_from (abfd, ptr); \ | |
362 | if (coffsym != (coff_symbol_type *) NULL \ | |
363 | && coffsym->native->u.syment.n_scnum == 0) \ | |
364 | cache_ptr->addend = - coffsym->native->u.syment.n_value; \ | |
365 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
366 | && ptr->section != (asection *) NULL) \ | |
367 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
368 | else \ | |
369 | cache_ptr->addend = 0; \ | |
370 | if (ptr && howto_table[reloc.r_type].pc_relative) \ | |
371 | cache_ptr->addend += asect->vma; \ | |
372 | } | |
373 | ||
374 | /* We use the special COFF backend linker. For normal i386 COFF, we | |
375 | can use the generic relocate_section routine. For PE, we need our | |
376 | own routine. */ | |
377 | ||
378 | #ifndef COFF_WITH_PE | |
379 | ||
380 | #define coff_relocate_section _bfd_coff_generic_relocate_section | |
381 | ||
382 | #else /* COFF_WITH_PE */ | |
383 | ||
384 | /* The PE relocate section routine. The only difference between this | |
385 | and the regular routine is that we don't want to do anything for a | |
386 | relocateable link. */ | |
387 | ||
388 | static boolean coff_pe_i386_relocate_section | |
389 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
390 | struct internal_reloc *, struct internal_syment *, asection **)); | |
391 | ||
392 | static boolean | |
393 | coff_pe_i386_relocate_section (output_bfd, info, input_bfd, | |
394 | input_section, contents, relocs, syms, | |
395 | sections) | |
396 | bfd *output_bfd; | |
397 | struct bfd_link_info *info; | |
398 | bfd *input_bfd; | |
399 | asection *input_section; | |
400 | bfd_byte *contents; | |
401 | struct internal_reloc *relocs; | |
402 | struct internal_syment *syms; | |
403 | asection **sections; | |
404 | { | |
405 | if (info->relocateable) | |
406 | return true; | |
407 | ||
408 | return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd, | |
409 | input_section, contents, | |
410 | relocs, syms, sections); | |
411 | } | |
412 | ||
413 | #define coff_relocate_section coff_pe_i386_relocate_section | |
414 | ||
415 | #endif /* COFF_WITH_PE */ | |
416 | ||
417 | /* Convert an rtype to howto for the COFF backend linker. */ | |
418 | ||
419 | static reloc_howto_type * | |
420 | coff_i386_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
5f771d47 | 421 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
422 | asection *sec; |
423 | struct internal_reloc *rel; | |
424 | struct coff_link_hash_entry *h; | |
425 | struct internal_syment *sym; | |
426 | bfd_vma *addendp; | |
427 | { | |
252b5132 RH |
428 | reloc_howto_type *howto; |
429 | ||
00692651 ILT |
430 | if (rel->r_type > sizeof (howto_table) / sizeof (howto_table[0])) |
431 | { | |
432 | bfd_set_error (bfd_error_bad_value); | |
433 | return NULL; | |
434 | } | |
435 | ||
252b5132 RH |
436 | howto = howto_table + rel->r_type; |
437 | ||
438 | #ifdef COFF_WITH_PE | |
00692651 | 439 | /* Cancel out code in _bfd_coff_generic_relocate_section. */ |
252b5132 RH |
440 | *addendp = 0; |
441 | #endif | |
442 | ||
443 | if (howto->pc_relative) | |
444 | *addendp += sec->vma; | |
445 | ||
446 | if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0) | |
447 | { | |
448 | /* This is a common symbol. The section contents include the | |
449 | size (sym->n_value) as an addend. The relocate_section | |
450 | function will be adding in the final value of the symbol. We | |
451 | need to subtract out the current size in order to get the | |
452 | correct result. */ | |
b7be1db6 | 453 | |
252b5132 RH |
454 | BFD_ASSERT (h != NULL); |
455 | ||
456 | #ifndef COFF_WITH_PE | |
457 | /* I think we *do* want to bypass this. If we don't, I have | |
458 | seen some data parameters get the wrong relocation address. | |
459 | If I link two versions with and without this section bypassed | |
460 | and then do a binary comparison, the addresses which are | |
461 | different can be looked up in the map. The case in which | |
462 | this section has been bypassed has addresses which correspond | |
463 | to values I can find in the map. */ | |
464 | *addendp -= sym->n_value; | |
465 | #endif | |
466 | } | |
467 | ||
468 | #ifndef COFF_WITH_PE | |
469 | /* If the output symbol is common (in which case this must be a | |
470 | relocateable link), we need to add in the final size of the | |
471 | common symbol. */ | |
b7be1db6 | 472 | if (h != NULL && h->root.type == bfd_link_hash_common) |
252b5132 RH |
473 | *addendp += h->root.u.c.size; |
474 | #endif | |
475 | ||
476 | #ifdef COFF_WITH_PE | |
477 | if (howto->pc_relative) | |
478 | { | |
479 | *addendp -= 4; | |
480 | ||
481 | /* If the symbol is defined, then the generic code is going to | |
482 | add back the symbol value in order to cancel out an | |
483 | adjustment it made to the addend. However, we set the addend | |
484 | to 0 at the start of this function. We need to adjust here, | |
485 | to avoid the adjustment the generic code will make. FIXME: | |
486 | This is getting a bit hackish. */ | |
487 | if (sym != NULL && sym->n_scnum != 0) | |
488 | *addendp -= sym->n_value; | |
489 | } | |
490 | ||
491 | if (rel->r_type == R_IMAGEBASE) | |
492 | { | |
493 | *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; | |
494 | } | |
495 | #endif | |
496 | ||
497 | return howto; | |
498 | } | |
499 | ||
252b5132 RH |
500 | #define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup |
501 | ||
252b5132 RH |
502 | static reloc_howto_type * |
503 | coff_i386_reloc_type_lookup (abfd, code) | |
5f771d47 | 504 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
505 | bfd_reloc_code_real_type code; |
506 | { | |
507 | switch (code) | |
508 | { | |
509 | case BFD_RELOC_RVA: | |
b7be1db6 | 510 | return howto_table + R_IMAGEBASE; |
252b5132 RH |
511 | case BFD_RELOC_32: |
512 | return howto_table + R_DIR32; | |
513 | case BFD_RELOC_32_PCREL: | |
514 | return howto_table + R_PCRLONG; | |
b7be1db6 AM |
515 | case BFD_RELOC_16: |
516 | return howto_table + R_RELWORD; | |
517 | case BFD_RELOC_16_PCREL: | |
518 | return howto_table + R_PCRWORD; | |
519 | case BFD_RELOC_8: | |
520 | return howto_table + R_RELBYTE; | |
521 | case BFD_RELOC_8_PCREL: | |
522 | return howto_table + R_PCRBYTE; | |
252b5132 RH |
523 | default: |
524 | BFD_FAIL (); | |
525 | return 0; | |
526 | } | |
527 | } | |
528 | ||
529 | #define coff_rtype_to_howto coff_i386_rtype_to_howto | |
530 | ||
531 | #ifdef TARGET_UNDERSCORE | |
532 | ||
533 | /* If i386 gcc uses underscores for symbol names, then it does not use | |
534 | a leading dot for local labels, so if TARGET_UNDERSCORE is defined | |
535 | we treat all symbols starting with L as local. */ | |
536 | ||
537 | static boolean coff_i386_is_local_label_name PARAMS ((bfd *, const char *)); | |
538 | ||
539 | static boolean | |
540 | coff_i386_is_local_label_name (abfd, name) | |
541 | bfd *abfd; | |
542 | const char *name; | |
543 | { | |
544 | if (name[0] == 'L') | |
545 | return true; | |
546 | ||
547 | return _bfd_coff_is_local_label_name (abfd, name); | |
548 | } | |
549 | ||
550 | #define coff_bfd_is_local_label_name coff_i386_is_local_label_name | |
551 | ||
552 | #endif /* TARGET_UNDERSCORE */ | |
553 | ||
554 | #include "coffcode.h" | |
555 | ||
252b5132 RH |
556 | const bfd_target |
557 | #ifdef TARGET_SYM | |
558 | TARGET_SYM = | |
559 | #else | |
560 | i386coff_vec = | |
561 | #endif | |
562 | { | |
563 | #ifdef TARGET_NAME | |
564 | TARGET_NAME, | |
565 | #else | |
566 | "coff-i386", /* name */ | |
567 | #endif | |
568 | bfd_target_coff_flavour, | |
569 | BFD_ENDIAN_LITTLE, /* data byte order is little */ | |
570 | BFD_ENDIAN_LITTLE, /* header byte order is little */ | |
571 | ||
572 | (HAS_RELOC | EXEC_P | /* object flags */ | |
573 | HAS_LINENO | HAS_DEBUG | | |
574 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
575 | ||
252b5132 | 576 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ |
6fb72d08 ILT |
577 | #ifdef COFF_WITH_PE |
578 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | |
252b5132 | 579 | #endif |
6fb72d08 | 580 | | SEC_CODE | SEC_DATA), |
252b5132 RH |
581 | |
582 | #ifdef TARGET_UNDERSCORE | |
583 | TARGET_UNDERSCORE, /* leading underscore */ | |
584 | #else | |
585 | 0, /* leading underscore */ | |
586 | #endif | |
587 | '/', /* ar_pad_char */ | |
588 | 15, /* ar_max_namelen */ | |
589 | ||
590 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
591 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
592 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
593 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
594 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
595 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
596 | ||
597 | /* Note that we allow an object file to be treated as a core file as well. */ | |
cb665cd3 NC |
598 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
599 | bfd_generic_archive_p, coff_object_p}, | |
252b5132 RH |
600 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ |
601 | bfd_false}, | |
602 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
603 | _bfd_write_archive_contents, bfd_false}, | |
604 | ||
605 | BFD_JUMP_TABLE_GENERIC (coff), | |
606 | BFD_JUMP_TABLE_COPY (coff), | |
607 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
608 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
609 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
610 | BFD_JUMP_TABLE_RELOCS (coff), | |
611 | BFD_JUMP_TABLE_WRITE (coff), | |
612 | BFD_JUMP_TABLE_LINK (coff), | |
613 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
614 | ||
c3c89269 | 615 | NULL, |
b7be1db6 | 616 | |
c3c89269 | 617 | COFF_SWAP_TABLE |
252b5132 | 618 | }; |