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 | |
252b5132 | 179 | |
6fb72d08 ILT |
180 | /* Return true if this relocation should appear in the output .reloc |
181 | section. */ | |
182 | ||
183 | static boolean in_reloc_p PARAMS ((bfd *, reloc_howto_type *)); | |
184 | ||
185 | static boolean in_reloc_p (abfd, howto) | |
186 | bfd *abfd ATTRIBUTE_UNUSED; | |
252b5132 RH |
187 | reloc_howto_type *howto; |
188 | { | |
189 | return ! howto->pc_relative && howto->type != R_IMAGEBASE; | |
b7be1db6 | 190 | } |
6fb72d08 ILT |
191 | |
192 | #endif /* COFF_WITH_PE */ | |
252b5132 RH |
193 | |
194 | #ifndef PCRELOFFSET | |
195 | #define PCRELOFFSET false | |
196 | #endif | |
197 | ||
b7be1db6 | 198 | static reloc_howto_type howto_table[] = |
252b5132 | 199 | { |
5f771d47 ILT |
200 | EMPTY_HOWTO (0), |
201 | EMPTY_HOWTO (1), | |
202 | EMPTY_HOWTO (2), | |
203 | EMPTY_HOWTO (3), | |
204 | EMPTY_HOWTO (4), | |
205 | EMPTY_HOWTO (5), | |
b7be1db6 AM |
206 | HOWTO (R_DIR32, /* type */ |
207 | 0, /* rightshift */ | |
208 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
209 | 32, /* bitsize */ | |
210 | false, /* pc_relative */ | |
211 | 0, /* bitpos */ | |
252b5132 | 212 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
213 | coff_i386_reloc, /* special_function */ |
214 | "dir32", /* name */ | |
215 | true, /* partial_inplace */ | |
216 | 0xffffffff, /* src_mask */ | |
217 | 0xffffffff, /* dst_mask */ | |
218 | true), /* pcrel_offset */ | |
219 | /* PE IMAGE_REL_I386_DIR32NB relocation (7). */ | |
220 | HOWTO (R_IMAGEBASE, /* type */ | |
221 | 0, /* rightshift */ | |
222 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
223 | 32, /* bitsize */ | |
224 | false, /* pc_relative */ | |
225 | 0, /* bitpos */ | |
252b5132 | 226 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
227 | coff_i386_reloc, /* special_function */ |
228 | "rva32", /* name */ | |
229 | true, /* partial_inplace */ | |
230 | 0xffffffff, /* src_mask */ | |
231 | 0xffffffff, /* dst_mask */ | |
232 | false), /* pcrel_offset */ | |
5f771d47 ILT |
233 | EMPTY_HOWTO (010), |
234 | EMPTY_HOWTO (011), | |
235 | EMPTY_HOWTO (012), | |
236 | EMPTY_HOWTO (013), | |
237 | EMPTY_HOWTO (014), | |
238 | EMPTY_HOWTO (015), | |
239 | EMPTY_HOWTO (016), | |
00692651 ILT |
240 | /* Byte relocation (017). */ |
241 | HOWTO (R_RELBYTE, /* type */ | |
b7be1db6 AM |
242 | 0, /* rightshift */ |
243 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
244 | 8, /* bitsize */ | |
245 | false, /* pc_relative */ | |
246 | 0, /* bitpos */ | |
252b5132 | 247 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
248 | coff_i386_reloc, /* special_function */ |
249 | "8", /* name */ | |
250 | true, /* partial_inplace */ | |
251 | 0x000000ff, /* src_mask */ | |
252 | 0x000000ff, /* dst_mask */ | |
252b5132 | 253 | PCRELOFFSET), /* pcrel_offset */ |
00692651 | 254 | /* 16-bit word relocation (020). */ |
b7be1db6 AM |
255 | HOWTO (R_RELWORD, /* type */ |
256 | 0, /* rightshift */ | |
257 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
258 | 16, /* bitsize */ | |
259 | false, /* pc_relative */ | |
260 | 0, /* bitpos */ | |
252b5132 | 261 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
262 | coff_i386_reloc, /* special_function */ |
263 | "16", /* name */ | |
264 | true, /* partial_inplace */ | |
265 | 0x0000ffff, /* src_mask */ | |
266 | 0x0000ffff, /* dst_mask */ | |
252b5132 | 267 | PCRELOFFSET), /* pcrel_offset */ |
b7be1db6 AM |
268 | /* 32-bit longword relocation (021). */ |
269 | HOWTO (R_RELLONG, /* type */ | |
270 | 0, /* rightshift */ | |
271 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
272 | 32, /* bitsize */ | |
273 | false, /* pc_relative */ | |
274 | 0, /* bitpos */ | |
252b5132 | 275 | complain_overflow_bitfield, /* complain_on_overflow */ |
b7be1db6 AM |
276 | coff_i386_reloc, /* special_function */ |
277 | "32", /* name */ | |
278 | true, /* partial_inplace */ | |
279 | 0xffffffff, /* src_mask */ | |
280 | 0xffffffff, /* dst_mask */ | |
252b5132 | 281 | PCRELOFFSET), /* pcrel_offset */ |
b7be1db6 AM |
282 | /* Byte PC relative relocation (022). */ |
283 | HOWTO (R_PCRBYTE, /* type */ | |
284 | 0, /* rightshift */ | |
285 | 0, /* size (0 = byte, 1 = short, 2 = long) */ | |
286 | 8, /* bitsize */ | |
287 | true, /* pc_relative */ | |
288 | 0, /* bitpos */ | |
252b5132 | 289 | complain_overflow_signed, /* complain_on_overflow */ |
b7be1db6 AM |
290 | coff_i386_reloc, /* special_function */ |
291 | "DISP8", /* name */ | |
292 | true, /* partial_inplace */ | |
293 | 0x000000ff, /* src_mask */ | |
294 | 0x000000ff, /* dst_mask */ | |
252b5132 | 295 | PCRELOFFSET), /* pcrel_offset */ |
b7be1db6 AM |
296 | /* 16-bit word PC relative relocation (023). */ |
297 | HOWTO (R_PCRWORD, /* type */ | |
298 | 0, /* rightshift */ | |
299 | 1, /* size (0 = byte, 1 = short, 2 = long) */ | |
300 | 16, /* bitsize */ | |
301 | true, /* pc_relative */ | |
302 | 0, /* bitpos */ | |
252b5132 | 303 | complain_overflow_signed, /* complain_on_overflow */ |
b7be1db6 AM |
304 | coff_i386_reloc, /* special_function */ |
305 | "DISP16", /* name */ | |
306 | true, /* partial_inplace */ | |
307 | 0x0000ffff, /* src_mask */ | |
308 | 0x0000ffff, /* dst_mask */ | |
252b5132 | 309 | PCRELOFFSET), /* pcrel_offset */ |
00692651 | 310 | /* 32-bit longword PC relative relocation (024). */ |
b7be1db6 AM |
311 | HOWTO (R_PCRLONG, /* type */ |
312 | 0, /* rightshift */ | |
313 | 2, /* size (0 = byte, 1 = short, 2 = long) */ | |
314 | 32, /* bitsize */ | |
315 | true, /* pc_relative */ | |
316 | 0, /* bitpos */ | |
252b5132 | 317 | complain_overflow_signed, /* complain_on_overflow */ |
b7be1db6 AM |
318 | coff_i386_reloc, /* special_function */ |
319 | "DISP32", /* name */ | |
320 | true, /* partial_inplace */ | |
321 | 0xffffffff, /* src_mask */ | |
322 | 0xffffffff, /* dst_mask */ | |
252b5132 RH |
323 | PCRELOFFSET) /* pcrel_offset */ |
324 | }; | |
325 | ||
326 | /* Turn a howto into a reloc nunmber */ | |
327 | ||
328 | #define SELECT_RELOC(x,howto) { x.r_type = howto->type; } | |
329 | #define BADMAG(x) I386BADMAG(x) | |
330 | #define I386 1 /* Customize coffcode.h */ | |
331 | ||
00692651 ILT |
332 | #define RTYPE2HOWTO(cache_ptr, dst) \ |
333 | ((cache_ptr)->howto = \ | |
334 | ((dst)->r_type < sizeof (howto_table) / sizeof (howto_table[0]) \ | |
335 | ? howto_table + (dst)->r_type \ | |
336 | : NULL)) | |
252b5132 RH |
337 | |
338 | /* For 386 COFF a STYP_NOLOAD | STYP_BSS section is part of a shared | |
339 | library. On some other COFF targets STYP_BSS is normally | |
340 | STYP_NOLOAD. */ | |
341 | #define BSS_NOLOAD_IS_SHARED_LIBRARY | |
342 | ||
343 | /* Compute the addend of a reloc. If the reloc is to a common symbol, | |
344 | the object file contains the value of the common symbol. By the | |
345 | time this is called, the linker may be using a different symbol | |
346 | from a different object file with a different value. Therefore, we | |
347 | hack wildly to locate the original symbol from this file so that we | |
348 | can make the correct adjustment. This macro sets coffsym to the | |
349 | symbol from the original file, and uses it to set the addend value | |
350 | correctly. If this is not a common symbol, the usual addend | |
351 | calculation is done, except that an additional tweak is needed for | |
352 | PC relative relocs. | |
353 | FIXME: This macro refers to symbols and asect; these are from the | |
354 | calling function, not the macro arguments. */ | |
355 | ||
356 | #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \ | |
357 | { \ | |
358 | coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \ | |
359 | if (ptr && bfd_asymbol_bfd (ptr) != abfd) \ | |
360 | coffsym = (obj_symbols (abfd) \ | |
361 | + (cache_ptr->sym_ptr_ptr - symbols)); \ | |
362 | else if (ptr) \ | |
363 | coffsym = coff_symbol_from (abfd, ptr); \ | |
364 | if (coffsym != (coff_symbol_type *) NULL \ | |
365 | && coffsym->native->u.syment.n_scnum == 0) \ | |
366 | cache_ptr->addend = - coffsym->native->u.syment.n_value; \ | |
367 | else if (ptr && bfd_asymbol_bfd (ptr) == abfd \ | |
368 | && ptr->section != (asection *) NULL) \ | |
369 | cache_ptr->addend = - (ptr->section->vma + ptr->value); \ | |
370 | else \ | |
371 | cache_ptr->addend = 0; \ | |
372 | if (ptr && howto_table[reloc.r_type].pc_relative) \ | |
373 | cache_ptr->addend += asect->vma; \ | |
374 | } | |
375 | ||
376 | /* We use the special COFF backend linker. For normal i386 COFF, we | |
377 | can use the generic relocate_section routine. For PE, we need our | |
378 | own routine. */ | |
379 | ||
380 | #ifndef COFF_WITH_PE | |
381 | ||
382 | #define coff_relocate_section _bfd_coff_generic_relocate_section | |
383 | ||
384 | #else /* COFF_WITH_PE */ | |
385 | ||
386 | /* The PE relocate section routine. The only difference between this | |
387 | and the regular routine is that we don't want to do anything for a | |
388 | relocateable link. */ | |
389 | ||
390 | static boolean coff_pe_i386_relocate_section | |
391 | PARAMS ((bfd *, struct bfd_link_info *, bfd *, asection *, bfd_byte *, | |
392 | struct internal_reloc *, struct internal_syment *, asection **)); | |
393 | ||
394 | static boolean | |
395 | coff_pe_i386_relocate_section (output_bfd, info, input_bfd, | |
396 | input_section, contents, relocs, syms, | |
397 | sections) | |
398 | bfd *output_bfd; | |
399 | struct bfd_link_info *info; | |
400 | bfd *input_bfd; | |
401 | asection *input_section; | |
402 | bfd_byte *contents; | |
403 | struct internal_reloc *relocs; | |
404 | struct internal_syment *syms; | |
405 | asection **sections; | |
406 | { | |
407 | if (info->relocateable) | |
408 | return true; | |
409 | ||
410 | return _bfd_coff_generic_relocate_section (output_bfd, info, input_bfd, | |
411 | input_section, contents, | |
412 | relocs, syms, sections); | |
413 | } | |
414 | ||
415 | #define coff_relocate_section coff_pe_i386_relocate_section | |
416 | ||
417 | #endif /* COFF_WITH_PE */ | |
418 | ||
419 | /* Convert an rtype to howto for the COFF backend linker. */ | |
420 | ||
421 | static reloc_howto_type * | |
422 | coff_i386_rtype_to_howto (abfd, sec, rel, h, sym, addendp) | |
5f771d47 | 423 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
424 | asection *sec; |
425 | struct internal_reloc *rel; | |
426 | struct coff_link_hash_entry *h; | |
427 | struct internal_syment *sym; | |
428 | bfd_vma *addendp; | |
429 | { | |
252b5132 RH |
430 | reloc_howto_type *howto; |
431 | ||
00692651 ILT |
432 | if (rel->r_type > sizeof (howto_table) / sizeof (howto_table[0])) |
433 | { | |
434 | bfd_set_error (bfd_error_bad_value); | |
435 | return NULL; | |
436 | } | |
437 | ||
252b5132 RH |
438 | howto = howto_table + rel->r_type; |
439 | ||
440 | #ifdef COFF_WITH_PE | |
00692651 | 441 | /* Cancel out code in _bfd_coff_generic_relocate_section. */ |
252b5132 RH |
442 | *addendp = 0; |
443 | #endif | |
444 | ||
445 | if (howto->pc_relative) | |
446 | *addendp += sec->vma; | |
447 | ||
448 | if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0) | |
449 | { | |
450 | /* This is a common symbol. The section contents include the | |
451 | size (sym->n_value) as an addend. The relocate_section | |
452 | function will be adding in the final value of the symbol. We | |
453 | need to subtract out the current size in order to get the | |
454 | correct result. */ | |
b7be1db6 | 455 | |
252b5132 RH |
456 | BFD_ASSERT (h != NULL); |
457 | ||
458 | #ifndef COFF_WITH_PE | |
459 | /* I think we *do* want to bypass this. If we don't, I have | |
460 | seen some data parameters get the wrong relocation address. | |
461 | If I link two versions with and without this section bypassed | |
462 | and then do a binary comparison, the addresses which are | |
463 | different can be looked up in the map. The case in which | |
464 | this section has been bypassed has addresses which correspond | |
465 | to values I can find in the map. */ | |
466 | *addendp -= sym->n_value; | |
467 | #endif | |
468 | } | |
469 | ||
470 | #ifndef COFF_WITH_PE | |
471 | /* If the output symbol is common (in which case this must be a | |
472 | relocateable link), we need to add in the final size of the | |
473 | common symbol. */ | |
b7be1db6 | 474 | if (h != NULL && h->root.type == bfd_link_hash_common) |
252b5132 RH |
475 | *addendp += h->root.u.c.size; |
476 | #endif | |
477 | ||
478 | #ifdef COFF_WITH_PE | |
479 | if (howto->pc_relative) | |
480 | { | |
481 | *addendp -= 4; | |
482 | ||
483 | /* If the symbol is defined, then the generic code is going to | |
484 | add back the symbol value in order to cancel out an | |
485 | adjustment it made to the addend. However, we set the addend | |
486 | to 0 at the start of this function. We need to adjust here, | |
487 | to avoid the adjustment the generic code will make. FIXME: | |
488 | This is getting a bit hackish. */ | |
489 | if (sym != NULL && sym->n_scnum != 0) | |
490 | *addendp -= sym->n_value; | |
491 | } | |
492 | ||
493 | if (rel->r_type == R_IMAGEBASE) | |
494 | { | |
495 | *addendp -= pe_data(sec->output_section->owner)->pe_opthdr.ImageBase; | |
496 | } | |
497 | #endif | |
498 | ||
499 | return howto; | |
500 | } | |
501 | ||
252b5132 RH |
502 | #define coff_bfd_reloc_type_lookup coff_i386_reloc_type_lookup |
503 | ||
252b5132 RH |
504 | static reloc_howto_type * |
505 | coff_i386_reloc_type_lookup (abfd, code) | |
5f771d47 | 506 | bfd *abfd ATTRIBUTE_UNUSED; |
252b5132 RH |
507 | bfd_reloc_code_real_type code; |
508 | { | |
509 | switch (code) | |
510 | { | |
511 | case BFD_RELOC_RVA: | |
b7be1db6 | 512 | return howto_table + R_IMAGEBASE; |
252b5132 RH |
513 | case BFD_RELOC_32: |
514 | return howto_table + R_DIR32; | |
515 | case BFD_RELOC_32_PCREL: | |
516 | return howto_table + R_PCRLONG; | |
b7be1db6 AM |
517 | case BFD_RELOC_16: |
518 | return howto_table + R_RELWORD; | |
519 | case BFD_RELOC_16_PCREL: | |
520 | return howto_table + R_PCRWORD; | |
521 | case BFD_RELOC_8: | |
522 | return howto_table + R_RELBYTE; | |
523 | case BFD_RELOC_8_PCREL: | |
524 | return howto_table + R_PCRBYTE; | |
252b5132 RH |
525 | default: |
526 | BFD_FAIL (); | |
527 | return 0; | |
528 | } | |
529 | } | |
530 | ||
531 | #define coff_rtype_to_howto coff_i386_rtype_to_howto | |
532 | ||
533 | #ifdef TARGET_UNDERSCORE | |
534 | ||
535 | /* If i386 gcc uses underscores for symbol names, then it does not use | |
536 | a leading dot for local labels, so if TARGET_UNDERSCORE is defined | |
537 | we treat all symbols starting with L as local. */ | |
538 | ||
539 | static boolean coff_i386_is_local_label_name PARAMS ((bfd *, const char *)); | |
540 | ||
541 | static boolean | |
542 | coff_i386_is_local_label_name (abfd, name) | |
543 | bfd *abfd; | |
544 | const char *name; | |
545 | { | |
546 | if (name[0] == 'L') | |
547 | return true; | |
548 | ||
549 | return _bfd_coff_is_local_label_name (abfd, name); | |
550 | } | |
551 | ||
552 | #define coff_bfd_is_local_label_name coff_i386_is_local_label_name | |
553 | ||
554 | #endif /* TARGET_UNDERSCORE */ | |
555 | ||
556 | #include "coffcode.h" | |
557 | ||
252b5132 RH |
558 | const bfd_target |
559 | #ifdef TARGET_SYM | |
560 | TARGET_SYM = | |
561 | #else | |
562 | i386coff_vec = | |
563 | #endif | |
564 | { | |
565 | #ifdef TARGET_NAME | |
566 | TARGET_NAME, | |
567 | #else | |
568 | "coff-i386", /* name */ | |
569 | #endif | |
570 | bfd_target_coff_flavour, | |
571 | BFD_ENDIAN_LITTLE, /* data byte order is little */ | |
572 | BFD_ENDIAN_LITTLE, /* header byte order is little */ | |
573 | ||
574 | (HAS_RELOC | EXEC_P | /* object flags */ | |
575 | HAS_LINENO | HAS_DEBUG | | |
576 | HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED), | |
577 | ||
252b5132 | 578 | (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* section flags */ |
6fb72d08 ILT |
579 | #ifdef COFF_WITH_PE |
580 | | SEC_LINK_ONCE | SEC_LINK_DUPLICATES | |
252b5132 | 581 | #endif |
6fb72d08 | 582 | | SEC_CODE | SEC_DATA), |
252b5132 RH |
583 | |
584 | #ifdef TARGET_UNDERSCORE | |
585 | TARGET_UNDERSCORE, /* leading underscore */ | |
586 | #else | |
587 | 0, /* leading underscore */ | |
588 | #endif | |
589 | '/', /* ar_pad_char */ | |
590 | 15, /* ar_max_namelen */ | |
591 | ||
592 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
593 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
594 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* data */ | |
595 | bfd_getl64, bfd_getl_signed_64, bfd_putl64, | |
596 | bfd_getl32, bfd_getl_signed_32, bfd_putl32, | |
597 | bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* hdrs */ | |
598 | ||
599 | /* Note that we allow an object file to be treated as a core file as well. */ | |
cb665cd3 NC |
600 | {_bfd_dummy_target, coff_object_p, /* bfd_check_format */ |
601 | bfd_generic_archive_p, coff_object_p}, | |
252b5132 RH |
602 | {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format */ |
603 | bfd_false}, | |
604 | {bfd_false, coff_write_object_contents, /* bfd_write_contents */ | |
605 | _bfd_write_archive_contents, bfd_false}, | |
606 | ||
607 | BFD_JUMP_TABLE_GENERIC (coff), | |
608 | BFD_JUMP_TABLE_COPY (coff), | |
609 | BFD_JUMP_TABLE_CORE (_bfd_nocore), | |
610 | BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff), | |
611 | BFD_JUMP_TABLE_SYMBOLS (coff), | |
612 | BFD_JUMP_TABLE_RELOCS (coff), | |
613 | BFD_JUMP_TABLE_WRITE (coff), | |
614 | BFD_JUMP_TABLE_LINK (coff), | |
615 | BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic), | |
616 | ||
c3c89269 | 617 | NULL, |
b7be1db6 | 618 | |
c3c89269 | 619 | COFF_SWAP_TABLE |
252b5132 | 620 | }; |