daily update
[binutils.git] / bfd / pe-mips.c
blobf28a2c2180f6776109b8b6c1bebce3f085796943
1 /* BFD back-end for MIPS PE COFF files.
2 Copyright 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
3 2000, 2001, 2002, 2003, 2004, 2005, 2007, 2008
4 Free Software Foundation, Inc.
5 Modified from coff-i386.c by DJ Delorie, dj@cygnus.com
7 This file is part of BFD, the Binary File Descriptor library.
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
11 the Free Software Foundation; either version 3 of the License, or
12 (at your option) any later version.
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.
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
21 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
22 MA 02110-1301, USA. */
24 #define COFF_WITH_PE
25 #define COFF_LONG_SECTION_NAMES
26 #define PCRELOFFSET TRUE
28 #include "sysdep.h"
29 #include "bfd.h"
30 #include "libbfd.h"
31 #include "coff/mipspe.h"
32 #include "coff/internal.h"
33 #include "coff/pe.h"
34 #include "libcoff.h"
36 #define COFF_DEFAULT_SECTION_ALIGNMENT_POWER 2
37 /* The page size is a guess based on ELF. */
39 #define COFF_PAGE_SIZE 0x1000
41 /* For some reason when using mips COFF the value stored in the .text
42 section for a reference to a common symbol is the value itself plus
43 any desired offset. Ian Taylor, Cygnus Support. */
45 /* If we are producing relocatable output, we need to do some
46 adjustments to the object file that are not done by the
47 bfd_perform_relocation function. This function is called by every
48 reloc type to make any required adjustments. */
50 static bfd_reloc_status_type
51 coff_mips_reloc (bfd *abfd,
52 arelent *reloc_entry,
53 asymbol *symbol,
54 void * data,
55 asection *input_section ATTRIBUTE_UNUSED,
56 bfd *output_bfd,
57 char **error_message ATTRIBUTE_UNUSED)
59 symvalue diff;
61 if (output_bfd == NULL)
62 return bfd_reloc_continue;
64 if (bfd_is_com_section (symbol->section))
66 #ifndef COFF_WITH_PE
67 /* We are relocating a common symbol. The current value in the
68 object file is ORIG + OFFSET, where ORIG is the value of the
69 common symbol as seen by the object file when it was compiled
70 (this may be zero if the symbol was undefined) and OFFSET is
71 the offset into the common symbol (normally zero, but may be
72 non-zero when referring to a field in a common structure).
73 ORIG is the negative of reloc_entry->addend, which is set by
74 the CALC_ADDEND macro below. We want to replace the value in
75 the object file with NEW + OFFSET, where NEW is the value of
76 the common symbol which we are going to put in the final
77 object file. NEW is symbol->value. */
78 diff = symbol->value + reloc_entry->addend;
79 #else
80 /* In PE mode, we do not offset the common symbol. */
81 diff = reloc_entry->addend;
82 #endif
84 else
85 /* For some reason bfd_perform_relocation always effectively
86 ignores the addend for a COFF target when producing
87 relocatable output. This seems to be always wrong for 386
88 COFF, so we handle the addend here instead. */
89 diff = reloc_entry->addend;
91 #define DOIT(x) \
92 x = ((x & ~howto->dst_mask) | (((x & howto->src_mask) + (diff >> howto->rightshift)) & howto->dst_mask))
94 if (diff != 0)
96 reloc_howto_type *howto = reloc_entry->howto;
97 unsigned char *addr = (unsigned char *) data + reloc_entry->address;
99 switch (howto->size)
101 case 0:
103 char x = bfd_get_8 (abfd, addr);
105 DOIT (x);
106 bfd_put_8 (abfd, x, addr);
108 break;
110 case 1:
112 short x = bfd_get_16 (abfd, addr);
114 DOIT (x);
115 bfd_put_16 (abfd, (bfd_vma) x, addr);
117 break;
119 case 2:
121 long x = bfd_get_32 (abfd, addr);
123 DOIT (x);
124 bfd_put_32 (abfd, (bfd_vma) x, addr);
126 break;
128 default:
129 abort ();
133 /* Now let bfd_perform_relocation finish everything up. */
134 return bfd_reloc_continue;
137 #ifdef COFF_WITH_PE
138 /* Return TRUE if this relocation should
139 appear in the output .reloc section. */
141 static bfd_boolean
142 in_reloc_p (bfd * abfd ATTRIBUTE_UNUSED, reloc_howto_type *howto)
144 return ! howto->pc_relative && howto->type != MIPS_R_RVA;
146 #endif
148 #ifndef PCRELOFFSET
149 #define PCRELOFFSET FALSE
150 #endif
152 static reloc_howto_type howto_table[] =
154 /* Reloc type 0 is ignored. The reloc reading code ensures that
155 this is a reference to the .abs section, which will cause
156 bfd_perform_relocation to do nothing. */
157 HOWTO (MIPS_R_ABSOLUTE, /* Type. */
158 0, /* Rightshift. */
159 0, /* Size (0 = byte, 1 = short, 2 = long). */
160 8, /* Bitsize. */
161 FALSE, /* PC_relative. */
162 0, /* Bitpos. */
163 complain_overflow_dont, /* Complain_on_overflow. */
164 0, /* Special_function. */
165 "IGNORE", /* Name. */
166 FALSE, /* Partial_inplace. */
167 0, /* Src_mask. */
168 0, /* Dst_mask. */
169 FALSE), /* Pcrel_offset. */
171 /* A 16 bit reference to a symbol, normally from a data section. */
172 HOWTO (MIPS_R_REFHALF, /* Type. */
173 0, /* Rightshift. */
174 1, /* Size (0 = byte, 1 = short, 2 = long). */
175 16, /* Bitsize. */
176 FALSE, /* PC_relative. */
177 0, /* Bitpos. */
178 complain_overflow_bitfield, /* Complain_on_overflow. */
179 coff_mips_reloc, /* Special_function. */
180 "REFHALF", /* Name. */
181 TRUE, /* Partial_inplace. */
182 0xffff, /* Src_mask. */
183 0xffff, /* Dst_mask. */
184 FALSE), /* Pcrel_offset. */
186 /* A 32 bit reference to a symbol, normally from a data section. */
187 HOWTO (MIPS_R_REFWORD, /* Type. */
188 0, /* Rightshift. */
189 2, /* Size (0 = byte, 1 = short, 2 = long). */
190 32, /* Bitsize. */
191 FALSE, /* PC_relative. */
192 0, /* Bitpos. */
193 complain_overflow_bitfield, /* Complain_on_overflow. */
194 coff_mips_reloc, /* Special_function. */
195 "REFWORD", /* Name. */
196 TRUE, /* Partial_inplace. */
197 0xffffffff, /* Src_mask. */
198 0xffffffff, /* Dst_mask. */
199 FALSE), /* Pcrel_offset. */
201 /* A 26 bit absolute jump address. */
202 HOWTO (MIPS_R_JMPADDR, /* Type. */
203 2, /* Rightshift. */
204 2, /* Size (0 = byte, 1 = short, 2 = long). */
205 26, /* Bitsize. */
206 FALSE, /* PC_relative. */
207 0, /* Bitpos. */
208 complain_overflow_dont, /* Complain_on_overflow. */
209 /* This needs complex overflow
210 detection, because the upper four
211 bits must match the PC. */
212 coff_mips_reloc, /* Special_function. */
213 "JMPADDR", /* Name. */
214 TRUE, /* Partial_inplace. */
215 0x3ffffff, /* Src_mask. */
216 0x3ffffff, /* Dst_mask. */
217 FALSE), /* Pcrel_offset. */
219 /* The high 16 bits of a symbol value. Handled by the function
220 mips_refhi_reloc. */
221 HOWTO (MIPS_R_REFHI, /* Type. */
222 16, /* Rightshift. */
223 2, /* Size (0 = byte, 1 = short, 2 = long). */
224 16, /* Bitsize. */
225 FALSE, /* PC_relative. */
226 0, /* Bitpos. */
227 complain_overflow_bitfield, /* Complain_on_overflow. */
228 coff_mips_reloc, /* Special_function. */
229 "REFHI", /* Name. */
230 TRUE, /* Partial_inplace. */
231 0xffff, /* Src_mask. */
232 0xffff, /* Dst_mask. */
233 FALSE), /* Pcrel_offset. */
235 /* The low 16 bits of a symbol value. */
236 HOWTO (MIPS_R_REFLO, /* Type. */
237 0, /* Rightshift. */
238 2, /* Size (0 = byte, 1 = short, 2 = long). */
239 16, /* Bitsize. */
240 FALSE, /* PC_relative. */
241 0, /* Bitpos. */
242 complain_overflow_dont, /* Complain_on_overflow. */
243 coff_mips_reloc, /* Special_function. */
244 "REFLO", /* Name. */
245 TRUE, /* Partial_inplace. */
246 0xffff, /* Src_mask. */
247 0xffff, /* Dst_mask. */
248 FALSE), /* Pcrel_offset. */
250 /* A reference to an offset from the gp register. Handled by the
251 function mips_gprel_reloc. */
252 HOWTO (MIPS_R_GPREL, /* Type. */
253 0, /* Rightshift. */
254 2, /* Size (0 = byte, 1 = short, 2 = long). */
255 16, /* Bitsize. */
256 FALSE, /* PC_relative. */
257 0, /* Bitpos. */
258 complain_overflow_signed, /* Complain_on_overflow. */
259 coff_mips_reloc, /* Special_function. */
260 "GPREL", /* Name. */
261 TRUE, /* Partial_inplace. */
262 0xffff, /* Src_mask. */
263 0xffff, /* Dst_mask. */
264 FALSE), /* Pcrel_offset. */
266 /* A reference to a literal using an offset from the gp register.
267 Handled by the function mips_gprel_reloc. */
268 HOWTO (MIPS_R_LITERAL, /* Type. */
269 0, /* Rightshift. */
270 2, /* Size (0 = byte, 1 = short, 2 = long). */
271 16, /* Bitsize. */
272 FALSE, /* PC_relative. */
273 0, /* Bitpos. */
274 complain_overflow_signed, /* Complain_on_overflow. */
275 coff_mips_reloc, /* Special_function. */
276 "LITERAL", /* Name. */
277 TRUE, /* Partial_inplace. */
278 0xffff, /* Src_mask. */
279 0xffff, /* Dst_mask. */
280 FALSE), /* Pcrel_offset. */
282 EMPTY_HOWTO (8),
283 EMPTY_HOWTO (9),
284 EMPTY_HOWTO (10),
285 EMPTY_HOWTO (11),
286 EMPTY_HOWTO (12),
287 EMPTY_HOWTO (13),
288 EMPTY_HOWTO (14),
289 EMPTY_HOWTO (15),
290 EMPTY_HOWTO (16),
291 EMPTY_HOWTO (17),
292 EMPTY_HOWTO (18),
293 EMPTY_HOWTO (19),
294 EMPTY_HOWTO (20),
295 EMPTY_HOWTO (21),
296 EMPTY_HOWTO (22),
297 EMPTY_HOWTO (23),
298 EMPTY_HOWTO (24),
299 EMPTY_HOWTO (25),
300 EMPTY_HOWTO (26),
301 EMPTY_HOWTO (27),
302 EMPTY_HOWTO (28),
303 EMPTY_HOWTO (29),
304 EMPTY_HOWTO (30),
305 EMPTY_HOWTO (31),
306 EMPTY_HOWTO (32),
307 EMPTY_HOWTO (33),
308 HOWTO (MIPS_R_RVA, /* Type. */
309 0, /* Rightshift. */
310 2, /* Size (0 = byte, 1 = short, 2 = long). */
311 32, /* Bitsize. */
312 FALSE, /* PC_relative. */
313 0, /* Bitpos. */
314 complain_overflow_bitfield, /* Complain_on_overflow. */
315 coff_mips_reloc, /* Special_function. */
316 "rva32", /* Name. */
317 TRUE, /* Partial_inplace. */
318 0xffffffff, /* Src_mask. */
319 0xffffffff, /* Dst_mask. */
320 FALSE), /* Pcrel_offset. */
321 EMPTY_HOWTO (35),
322 EMPTY_HOWTO (36),
323 HOWTO (MIPS_R_PAIR, /* Type. */
324 0, /* Rightshift. */
325 2, /* Size (0 = byte, 1 = short, 2 = long). */
326 32, /* Bitsize. */
327 FALSE, /* PC_relative. */
328 0, /* Bitpos. */
329 complain_overflow_bitfield, /* Complain_on_overflow. */
330 coff_mips_reloc, /* Special_function. */
331 "PAIR", /* Name. */
332 TRUE, /* Partial_inplace. */
333 0xffffffff, /* Src_mask. */
334 0xffffffff, /* Dst_mask. */
335 FALSE), /* Pcrel_offset. */
338 /* Turn a howto into a reloc nunmber. */
340 #define SELECT_RELOC(x, howto) { x.r_type = howto->type; }
341 #define BADMAG(x) MIPSBADMAG (x)
343 /* Customize coffcode.h. */
344 #define MIPS 1
346 #define RTYPE2HOWTO(cache_ptr, dst) \
347 (cache_ptr)->howto = howto_table + (dst)->r_type;
349 /* Compute the addend of a reloc. If the reloc is to a common symbol,
350 the object file contains the value of the common symbol. By the
351 time this is called, the linker may be using a different symbol
352 from a different object file with a different value. Therefore, we
353 hack wildly to locate the original symbol from this file so that we
354 can make the correct adjustment. This macro sets coffsym to the
355 symbol from the original file, and uses it to set the addend value
356 correctly. If this is not a common symbol, the usual addend
357 calculation is done, except that an additional tweak is needed for
358 PC relative relocs.
359 FIXME: This macro refers to symbols and asect; these are from the
360 calling function, not the macro arguments. */
362 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
364 coff_symbol_type *coffsym = NULL; \
365 if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
366 coffsym = (obj_symbols (abfd) \
367 + (cache_ptr->sym_ptr_ptr - symbols)); \
368 else if (ptr) \
369 coffsym = coff_symbol_from (abfd, ptr); \
370 if (coffsym != NULL \
371 && coffsym->native->u.syment.n_scnum == 0) \
372 cache_ptr->addend = - coffsym->native->u.syment.n_value; \
373 else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
374 && ptr->section != NULL) \
375 cache_ptr->addend = - (ptr->section->vma + ptr->value); \
376 else \
377 cache_ptr->addend = 0; \
378 if (ptr && howto_table[reloc.r_type].pc_relative) \
379 cache_ptr->addend += asect->vma; \
382 /* Convert an rtype to howto for the COFF backend linker. */
384 static reloc_howto_type *
385 coff_mips_rtype_to_howto (bfd *abfd ATTRIBUTE_UNUSED,
386 asection *sec,
387 struct internal_reloc *rel,
388 struct coff_link_hash_entry *h,
389 struct internal_syment *sym,
390 bfd_vma *addendp)
393 reloc_howto_type *howto;
395 howto = howto_table + rel->r_type;
397 #ifdef COFF_WITH_PE
398 *addendp = 0;
399 #endif
401 if (howto->pc_relative)
402 *addendp += sec->vma;
404 if (sym != NULL && sym->n_scnum == 0 && sym->n_value != 0)
406 /* This is a common symbol. The section contents include the
407 size (sym->n_value) as an addend. The relocate_section
408 function will be adding in the final value of the symbol. We
409 need to subtract out the current size in order to get the
410 correct result. */
412 BFD_ASSERT (h != NULL);
414 #ifndef COFF_WITH_PE
415 /* I think we *do* want to bypass this. If we don't, I have
416 seen some data parameters get the wrong relocation address.
417 If I link two versions with and without this section bypassed
418 and then do a binary comparison, the addresses which are
419 different can be looked up in the map. The case in which
420 this section has been bypassed has addresses which correspond
421 to values I can find in the map. */
422 *addendp -= sym->n_value;
423 #endif
426 #ifndef COFF_WITH_PE
427 /* If the output symbol is common (in which case this must be a
428 relocatable link), we need to add in the final size of the
429 common symbol. */
430 if (h != NULL && h->root.type == bfd_link_hash_common)
431 *addendp += h->root.u.c.size;
432 #endif
434 #ifdef COFF_WITH_PE
435 if (howto->pc_relative)
437 *addendp -= 4;
439 /* If the symbol is defined, then the generic code is going to
440 add back the symbol value in order to cancel out an
441 adjustment it made to the addend. However, we set the addend
442 to 0 at the start of this function. We need to adjust here,
443 to avoid the adjustment the generic code will make. FIXME:
444 This is getting a bit hackish. */
445 if (sym != NULL && sym->n_scnum != 0)
446 *addendp -= sym->n_value;
449 if (rel->r_type == MIPS_R_RVA)
450 *addendp -= pe_data (sec->output_section->owner)->pe_opthdr.ImageBase;
451 #endif
453 return howto;
456 #define coff_rtype_to_howto coff_mips_rtype_to_howto
457 #define coff_bfd_reloc_type_lookup coff_mips_reloc_type_lookup
458 #define coff_bfd_reloc_name_lookup coff_mips_reloc_name_lookup
460 /* Get the howto structure for a generic reloc type. */
462 static reloc_howto_type *
463 coff_mips_reloc_type_lookup (bfd *abfd ATTRIBUTE_UNUSED,
464 bfd_reloc_code_real_type code)
466 int mips_type;
468 switch (code)
470 case BFD_RELOC_16:
471 mips_type = MIPS_R_REFHALF;
472 break;
473 case BFD_RELOC_32:
474 case BFD_RELOC_CTOR:
475 mips_type = MIPS_R_REFWORD;
476 break;
477 case BFD_RELOC_MIPS_JMP:
478 mips_type = MIPS_R_JMPADDR;
479 break;
480 case BFD_RELOC_HI16_S:
481 mips_type = MIPS_R_REFHI;
482 break;
483 case BFD_RELOC_LO16:
484 mips_type = MIPS_R_REFLO;
485 break;
486 case BFD_RELOC_GPREL16:
487 mips_type = MIPS_R_GPREL;
488 break;
489 case BFD_RELOC_MIPS_LITERAL:
490 mips_type = MIPS_R_LITERAL;
491 break;
492 case BFD_RELOC_RVA:
493 mips_type = MIPS_R_RVA;
494 break;
495 default:
496 return NULL;
499 return & howto_table [mips_type];
502 static reloc_howto_type *
503 coff_mips_reloc_name_lookup (bfd *abfd ATTRIBUTE_UNUSED,
504 const char *r_name)
506 unsigned int i;
508 for (i = 0;
509 i < sizeof (howto_table) / sizeof (howto_table[0]);
510 i++)
511 if (howto_table[i].name != NULL
512 && strcasecmp (howto_table[i].name, r_name) == 0)
513 return &howto_table[i];
515 return NULL;
518 static void
519 mips_swap_reloc_in (bfd * abfd, void * src, void * dst)
521 static struct internal_reloc pair_prev;
522 RELOC *reloc_src = (RELOC *) src;
523 struct internal_reloc *reloc_dst = (struct internal_reloc *) dst;
525 reloc_dst->r_vaddr = H_GET_32 (abfd, reloc_src->r_vaddr);
526 reloc_dst->r_symndx = H_GET_S32 (abfd, reloc_src->r_symndx);
527 reloc_dst->r_type = H_GET_16 (abfd, reloc_src->r_type);
528 reloc_dst->r_size = 0;
529 reloc_dst->r_extern = 0;
530 reloc_dst->r_offset = 0;
532 switch (reloc_dst->r_type)
534 case MIPS_R_REFHI:
535 pair_prev = *reloc_dst;
536 break;
537 case MIPS_R_PAIR:
538 reloc_dst->r_offset = reloc_dst->r_symndx;
539 if (reloc_dst->r_offset & 0x8000)
540 reloc_dst->r_offset -= 0x10000;
541 reloc_dst->r_symndx = pair_prev.r_symndx;
542 break;
546 static unsigned int
547 mips_swap_reloc_out (bfd * abfd, void * src, void * dst)
549 static int prev_offset = 1;
550 static bfd_vma prev_addr = 0;
551 struct internal_reloc *reloc_src = (struct internal_reloc *)src;
552 struct external_reloc *reloc_dst = (struct external_reloc *)dst;
554 switch (reloc_src->r_type)
556 case MIPS_R_REFHI:
557 prev_addr = reloc_src->r_vaddr;
558 prev_offset = reloc_src->r_offset;
559 break;
560 case MIPS_R_REFLO:
561 if (reloc_src->r_vaddr == prev_addr)
563 /* FIXME: only slightly hackish. If we see a REFLO pointing to
564 the same address as a REFHI, we assume this is the matching
565 PAIR reloc and output it accordingly. The symndx is really
566 the low 16 bits of the addend */
567 H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr);
568 H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx);
569 H_PUT_16 (abfd, MIPS_R_PAIR, reloc_dst->r_type);
570 return RELSZ;
572 break;
575 H_PUT_32 (abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr);
576 H_PUT_32 (abfd, reloc_src->r_symndx, reloc_dst->r_symndx);
578 H_PUT_16 (abfd, reloc_src->r_type, reloc_dst->r_type);
579 return RELSZ;
582 #define coff_swap_reloc_in mips_swap_reloc_in
583 #define coff_swap_reloc_out mips_swap_reloc_out
584 #define NO_COFF_RELOCS
586 static bfd_boolean
587 coff_pe_mips_relocate_section (bfd *output_bfd,
588 struct bfd_link_info *info,
589 bfd *input_bfd,
590 asection *input_section,
591 bfd_byte *contents,
592 struct internal_reloc *relocs,
593 struct internal_syment *syms,
594 asection **sections)
596 bfd_vma gp;
597 bfd_boolean gp_undefined;
598 size_t adjust;
599 struct internal_reloc *rel;
600 struct internal_reloc *rel_end;
601 unsigned int i;
602 bfd_boolean got_lo;
604 if (info->relocatable)
606 (*_bfd_error_handler)
607 (_("%B: `ld -r' not supported with PE MIPS objects\n"), input_bfd);
608 bfd_set_error (bfd_error_bad_value);
609 return FALSE;
612 BFD_ASSERT (input_bfd->xvec->byteorder
613 == output_bfd->xvec->byteorder);
615 gp = _bfd_get_gp_value (output_bfd);
616 gp_undefined = (gp == 0) ? TRUE : FALSE;
617 got_lo = FALSE;
618 adjust = 0;
619 rel = relocs;
620 rel_end = rel + input_section->reloc_count;
622 for (i = 0; rel < rel_end; rel++, i++)
624 long symndx;
625 struct coff_link_hash_entry *h;
626 struct internal_syment *sym;
627 bfd_vma addend = 0;
628 bfd_vma val, tmp, targ, src, low;
629 reloc_howto_type *howto;
630 unsigned char *mem = contents + rel->r_vaddr;
632 symndx = rel->r_symndx;
634 if (symndx == -1)
636 h = NULL;
637 sym = NULL;
639 else
641 h = obj_coff_sym_hashes (input_bfd)[symndx];
642 sym = syms + symndx;
645 /* COFF treats common symbols in one of two ways. Either the
646 size of the symbol is included in the section contents, or it
647 is not. We assume that the size is not included, and force
648 the rtype_to_howto function to adjust the addend as needed. */
650 if (sym != NULL && sym->n_scnum != 0)
651 addend = - sym->n_value;
652 else
653 addend = 0;
655 howto = bfd_coff_rtype_to_howto (input_bfd, input_section, rel, h,
656 sym, &addend);
657 if (howto == NULL)
658 return FALSE;
660 /* If we are doing a relocatable link, then we can just ignore
661 a PC relative reloc that is pcrel_offset. It will already
662 have the correct value. If this is not a relocatable link,
663 then we should ignore the symbol value. */
664 if (howto->pc_relative && howto->pcrel_offset)
666 if (info->relocatable)
667 continue;
668 if (sym != NULL && sym->n_scnum != 0)
669 addend += sym->n_value;
672 val = 0;
674 if (h == NULL)
676 asection *sec;
678 if (symndx == -1)
680 sec = bfd_abs_section_ptr;
681 val = 0;
683 else
685 sec = sections[symndx];
686 val = (sec->output_section->vma
687 + sec->output_offset
688 + sym->n_value);
689 if (! obj_pe (input_bfd))
690 val -= sec->vma;
693 else
695 if (h->root.type == bfd_link_hash_defined
696 || h->root.type == bfd_link_hash_defweak)
698 asection *sec;
700 sec = h->root.u.def.section;
701 val = (h->root.u.def.value
702 + sec->output_section->vma
703 + sec->output_offset);
706 else if (! info->relocatable)
708 if (! ((*info->callbacks->undefined_symbol)
709 (info, h->root.root.string, input_bfd, input_section,
710 rel->r_vaddr - input_section->vma, TRUE)))
711 return FALSE;
715 src = rel->r_vaddr + input_section->output_section->vma
716 + input_section->output_offset;
718 /* OK, at this point the following variables are set up:
719 src = VMA of the memory we're fixing up
720 mem = pointer to memory we're fixing up
721 val = VMA of what we need to refer to. */
723 #define UI(x) (*_bfd_error_handler) (_("%B: unimplemented %s\n"), \
724 input_bfd, x); \
725 bfd_set_error (bfd_error_bad_value);
727 switch (rel->r_type)
729 case MIPS_R_ABSOLUTE:
730 /* Ignore these. */
731 break;
733 case MIPS_R_REFHALF:
734 UI ("refhalf");
735 break;
737 case MIPS_R_REFWORD:
738 tmp = bfd_get_32 (input_bfd, mem);
739 /* printf ("refword: src=%08x targ=%08x+%08x\n", src, tmp, val); */
740 tmp += val;
741 bfd_put_32 (input_bfd, tmp, mem);
742 break;
744 case MIPS_R_JMPADDR:
745 tmp = bfd_get_32 (input_bfd, mem);
746 targ = val + (tmp & 0x03ffffff) * 4;
747 if ((src & 0xf0000000) != (targ & 0xf0000000))
749 (*_bfd_error_handler) (_("%B: jump too far away\n"), input_bfd);
750 bfd_set_error (bfd_error_bad_value);
751 return FALSE;
753 tmp &= 0xfc000000;
754 tmp |= (targ / 4) & 0x3ffffff;
755 bfd_put_32 (input_bfd, tmp, mem);
756 break;
758 case MIPS_R_REFHI:
759 tmp = bfd_get_32 (input_bfd, mem);
760 switch (rel[1].r_type)
762 case MIPS_R_PAIR:
763 /* MS PE object */
764 targ = val + rel[1].r_offset + ((tmp & 0xffff) << 16);
765 break;
766 case MIPS_R_REFLO:
767 /* GNU COFF object */
768 low = bfd_get_32 (input_bfd, contents + rel[1].r_vaddr);
769 low &= 0xffff;
770 if (low & 0x8000)
771 low -= 0x10000;
772 targ = val + low + ((tmp & 0xffff) << 16);
773 break;
774 default:
775 (*_bfd_error_handler) (_("%B: bad pair/reflo after refhi\n"),
776 input_bfd);
777 bfd_set_error (bfd_error_bad_value);
778 return FALSE;
780 tmp &= 0xffff0000;
781 tmp |= (targ >> 16) & 0xffff;
782 bfd_put_32 (input_bfd, tmp, mem);
783 break;
785 case MIPS_R_REFLO:
786 tmp = bfd_get_32 (input_bfd, mem);
787 targ = val + (tmp & 0xffff);
788 /* printf ("refword: src=%08x targ=%08x\n", src, targ); */
789 tmp &= 0xffff0000;
790 tmp |= targ & 0xffff;
791 bfd_put_32 (input_bfd, tmp, mem);
792 break;
794 case MIPS_R_GPREL:
795 case MIPS_R_LITERAL:
796 UI ("gprel");
797 break;
799 case MIPS_R_SECTION:
800 UI ("section");
801 break;
803 case MIPS_R_SECREL:
804 UI ("secrel");
805 break;
807 case MIPS_R_SECRELLO:
808 UI ("secrello");
809 break;
811 case MIPS_R_SECRELHI:
812 UI ("secrelhi");
813 break;
815 case MIPS_R_RVA:
816 tmp = bfd_get_32 (input_bfd, mem);
817 /* printf ("rva: src=%08x targ=%08x+%08x\n", src, tmp, val); */
818 tmp += val
819 - pe_data (input_section->output_section->owner)->pe_opthdr.ImageBase;
820 bfd_put_32 (input_bfd, tmp, mem);
821 break;
823 case MIPS_R_PAIR:
824 /* ignore these */
825 break;
829 return TRUE;
832 #define coff_relocate_section coff_pe_mips_relocate_section
834 #ifdef TARGET_UNDERSCORE
836 /* If mips gcc uses underscores for symbol names, then it does not use
837 a leading dot for local labels, so if TARGET_UNDERSCORE is defined
838 we treat all symbols starting with L as local. */
840 static bfd_boolean
841 coff_mips_is_local_label_name (bfd *abfd, const char *name)
843 if (name[0] == 'L')
844 return TRUE;
846 return _bfd_coff_is_local_label_name (abfd, name);
849 #define coff_bfd_is_local_label_name coff_mips_is_local_label_name
851 #endif /* TARGET_UNDERSCORE */
853 #define COFF_NO_HACK_SCNHDR_SIZE
855 #ifndef bfd_pe_print_pdata
856 #define bfd_pe_print_pdata NULL
857 #endif
859 #include "coffcode.h"
861 const bfd_target
862 #ifdef TARGET_SYM
863 TARGET_SYM =
864 #else
865 mipslpe_vec =
866 #endif
868 #ifdef TARGET_NAME
869 TARGET_NAME,
870 #else
871 "pe-mips", /* Name. */
872 #endif
873 bfd_target_coff_flavour,
874 BFD_ENDIAN_LITTLE, /* Data byte order is little. */
875 BFD_ENDIAN_LITTLE, /* Header byte order is little. */
877 (HAS_RELOC | EXEC_P | /* Object flags. */
878 HAS_LINENO | HAS_DEBUG |
879 HAS_SYMS | HAS_LOCALS | WP_TEXT | D_PAGED),
881 #ifndef COFF_WITH_PE
882 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* Section flags. */
883 | SEC_CODE | SEC_DATA),
884 #else
885 (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC /* Section flags. */
886 | SEC_CODE | SEC_DATA
887 | SEC_LINK_ONCE | SEC_LINK_DUPLICATES),
888 #endif
890 #ifdef TARGET_UNDERSCORE
891 TARGET_UNDERSCORE, /* Leading underscore. */
892 #else
893 0, /* leading underscore */
894 #endif
895 '/', /* AR_pad_char. */
896 15, /* AR_max_namelen. */
898 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
899 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
900 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Data. */
901 bfd_getl64, bfd_getl_signed_64, bfd_putl64,
902 bfd_getl32, bfd_getl_signed_32, bfd_putl32,
903 bfd_getl16, bfd_getl_signed_16, bfd_putl16, /* Headers. */
905 /* Note that we allow an object file to be treated as a core file as well. */
906 {_bfd_dummy_target, coff_object_p, /* bfd_check_format. */
907 bfd_generic_archive_p, coff_object_p},
908 {bfd_false, coff_mkobject, _bfd_generic_mkarchive, /* bfd_set_format. */
909 bfd_false},
910 {bfd_false, coff_write_object_contents, /* bfd_write_contents. */
911 _bfd_write_archive_contents, bfd_false},
913 BFD_JUMP_TABLE_GENERIC (coff),
914 BFD_JUMP_TABLE_COPY (coff),
915 BFD_JUMP_TABLE_CORE (_bfd_nocore),
916 BFD_JUMP_TABLE_ARCHIVE (_bfd_archive_coff),
917 BFD_JUMP_TABLE_SYMBOLS (coff),
918 BFD_JUMP_TABLE_RELOCS (coff),
919 BFD_JUMP_TABLE_WRITE (coff),
920 BFD_JUMP_TABLE_LINK (coff),
921 BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
923 NULL,
925 COFF_SWAP_TABLE