* Makefile.am: Rename .dep* files to DEP*. Change DEP variable to
[deliverable/binutils-gdb.git] / bfd / m68klinux.c
CommitLineData
252b5132 1/* BFD back-end for linux flavored m68k a.out binaries.
5f771d47
ILT
2 Copyright (C) 1992, 93, 94, 95, 96, 97, 98, 1999
3 Free Software Foundation, Inc.
252b5132
RH
4
5This file is part of BFD, the Binary File Descriptor library.
6
7This program is free software; you can redistribute it and/or modify
8it under the terms of the GNU General Public License as published by
9the Free Software Foundation; either version 2 of the License, or
10(at your option) any later version.
11
12This program is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15GNU General Public License for more details.
16
17You should have received a copy of the GNU General Public License
18along with this program; if not, write to the Free Software
19Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
20
21#define TARGET_PAGE_SIZE 4096
22#define ZMAGIC_DISK_BLOCK_SIZE 1024
23#define SEGMENT_SIZE TARGET_PAGE_SIZE
24#define TEXT_START_ADDR 0x0
25#define N_SHARED_LIB(x) 0
26#define BYTES_IN_WORD 4
27
28#define MACHTYPE_OK(mtype) ((mtype) == M_68020 || (mtype) == M_UNKNOWN)
29
30#include "bfd.h"
31#include "sysdep.h"
32#include "libbfd.h"
33#include "aout/aout64.h"
34#include "aout/stab_gnu.h"
35#include "aout/ar.h"
36#include "libaout.h" /* BFD a.out internal data structures */
37
38#define TARGET_IS_BIG_ENDIAN_P
39#define DEFAULT_ARCH bfd_arch_m68k
40#define MY(OP) CAT(m68klinux_,OP)
41#define TARGETNAME "a.out-m68k-linux"
42
43extern const bfd_target MY(vec);
44
45/* We always generate QMAGIC files in preference to ZMAGIC files. It
46 would be possible to make this a linker option, if that ever
47 becomes important. */
48
49static void MY_final_link_callback
50 PARAMS ((bfd *, file_ptr *, file_ptr *, file_ptr *));
51static boolean m68klinux_bfd_final_link
52 PARAMS ((bfd *, struct bfd_link_info *));
53static boolean m68klinux_write_object_contents PARAMS ((bfd *));
54
55static boolean
56m68klinux_bfd_final_link (abfd, info)
57 bfd *abfd;
58 struct bfd_link_info *info;
59{
60 obj_aout_subformat (abfd) = q_magic_format;
61 return NAME(aout,final_link) (abfd, info, MY_final_link_callback);
62}
63
64#define MY_bfd_final_link m68klinux_bfd_final_link
65
66/* Set the machine type correctly. */
67
68static boolean
69m68klinux_write_object_contents (abfd)
70 bfd *abfd;
71{
72 struct external_exec exec_bytes;
73 struct internal_exec *execp = exec_hdr (abfd);
74
75 N_SET_MACHTYPE (*execp, M_68020);
76
77 obj_reloc_entry_size (abfd) = RELOC_STD_SIZE;
78
79 WRITE_HEADERS(abfd, execp);
80
81 return true;
82}
83
84#define MY_write_object_contents m68klinux_write_object_contents
85\f
86/* Code to link against Linux a.out shared libraries. */
87
88/* See if a symbol name is a reference to the global offset table. */
89
90#ifndef GOT_REF_PREFIX
91#define GOT_REF_PREFIX "__GOT_"
92#endif
93
94#define IS_GOT_SYM(name) \
95 (strncmp (name, GOT_REF_PREFIX, sizeof GOT_REF_PREFIX - 1) == 0)
96
97/* See if a symbol name is a reference to the procedure linkage table. */
98
99#ifndef PLT_REF_PREFIX
100#define PLT_REF_PREFIX "__PLT_"
101#endif
102
103#define IS_PLT_SYM(name) \
104 (strncmp (name, PLT_REF_PREFIX, sizeof PLT_REF_PREFIX - 1) == 0)
105
106/* This string is used to generate specialized error messages. */
107
108#ifndef NEEDS_SHRLIB
109#define NEEDS_SHRLIB "__NEEDS_SHRLIB_"
110#endif
111
112/* This special symbol is a set vector that contains a list of
113 pointers to fixup tables. It will be present in any dynamicly
114 linked file. The linker generated fixup table should also be added
115 to the list, and it should always appear in the second slot (the
116 first one is a dummy with a magic number that is defined in
117 crt0.o). */
118
119#ifndef SHARABLE_CONFLICTS
120#define SHARABLE_CONFLICTS "__SHARABLE_CONFLICTS__"
121#endif
122
123/* We keep a list of fixups. The terminology is a bit strange, but
124 each fixup contains two 32 bit numbers. A regular fixup contains
125 an address and a pointer, and at runtime we should store the
126 address at the location pointed to by the pointer. A builtin fixup
127 contains two pointers, and we should read the address using one
128 pointer and store it at the location pointed to by the other
129 pointer. Builtin fixups come into play when we have duplicate
130 __GOT__ symbols for the same variable. The builtin fixup will copy
131 the GOT pointer from one over into the other. */
132
133struct fixup
134{
135 struct fixup *next;
136 struct linux_link_hash_entry *h;
137 bfd_vma value;
138
139 /* Nonzero if this is a jump instruction that needs to be fixed,
140 zero if this is just a pointer */
141 char jump;
142
143 char builtin;
144};
145
146/* We don't need a special hash table entry structure, but we do need
147 to keep some information between linker passes, so we use a special
148 hash table. */
149
150struct linux_link_hash_entry
151{
152 struct aout_link_hash_entry root;
153};
154
155struct linux_link_hash_table
156{
157 struct aout_link_hash_table root;
158
159 /* First dynamic object found in link. */
160 bfd *dynobj;
161
162 /* Number of fixups. */
163 size_t fixup_count;
164
165 /* Number of builtin fixups. */
166 size_t local_builtins;
167
168 /* List of fixups. */
169 struct fixup *fixup_list;
170};
171
172static struct bfd_hash_entry *linux_link_hash_newfunc
173 PARAMS ((struct bfd_hash_entry *, struct bfd_hash_table *, const char *));
174static struct bfd_link_hash_table *linux_link_hash_table_create
175 PARAMS ((bfd *));
176static struct fixup *new_fixup
177 PARAMS ((struct bfd_link_info *, struct linux_link_hash_entry *,
178 bfd_vma, int));
179static boolean linux_link_create_dynamic_sections
180 PARAMS ((bfd *, struct bfd_link_info *));
181static boolean linux_add_one_symbol
182 PARAMS ((struct bfd_link_info *, bfd *, const char *, flagword, asection *,
183 bfd_vma, const char *, boolean, boolean,
184 struct bfd_link_hash_entry **));
185static boolean linux_tally_symbols
186 PARAMS ((struct linux_link_hash_entry *, PTR));
187static boolean linux_finish_dynamic_link
188 PARAMS ((bfd *, struct bfd_link_info *));
189
190/* Routine to create an entry in an Linux link hash table. */
191
192static struct bfd_hash_entry *
193linux_link_hash_newfunc (entry, table, string)
194 struct bfd_hash_entry *entry;
195 struct bfd_hash_table *table;
196 const char *string;
197{
198 struct linux_link_hash_entry *ret = (struct linux_link_hash_entry *) entry;
199
200 /* Allocate the structure if it has not already been allocated by a
201 subclass. */
202 if (ret == (struct linux_link_hash_entry *) NULL)
203 ret = ((struct linux_link_hash_entry *)
204 bfd_hash_allocate (table, sizeof (struct linux_link_hash_entry)));
205 if (ret == NULL)
206 return (struct bfd_hash_entry *) ret;
207
208 /* Call the allocation method of the superclass. */
209 ret = ((struct linux_link_hash_entry *)
210 NAME(aout,link_hash_newfunc) ((struct bfd_hash_entry *) ret,
211 table, string));
212 if (ret != NULL)
213 {
214 /* Set local fields; there aren't any. */
215 }
216
217 return (struct bfd_hash_entry *) ret;
218}
219
220/* Create a Linux link hash table. */
221
222static struct bfd_link_hash_table *
223linux_link_hash_table_create (abfd)
224 bfd *abfd;
225{
226 struct linux_link_hash_table *ret;
227
228 ret = ((struct linux_link_hash_table *)
229 bfd_alloc (abfd, sizeof (struct linux_link_hash_table)));
230 if (ret == (struct linux_link_hash_table *) NULL)
231 {
232 bfd_set_error (bfd_error_no_memory);
233 return (struct bfd_link_hash_table *) NULL;
234 }
235 if (! NAME(aout,link_hash_table_init) (&ret->root, abfd,
236 linux_link_hash_newfunc))
237 {
238 free (ret);
239 return (struct bfd_link_hash_table *) NULL;
240 }
241
242 ret->dynobj = NULL;
243 ret->fixup_count = 0;
244 ret->local_builtins = 0;
245 ret->fixup_list = NULL;
246
247 return &ret->root.root;
248}
249
250/* Look up an entry in a Linux link hash table. */
251
252#define linux_link_hash_lookup(table, string, create, copy, follow) \
253 ((struct linux_link_hash_entry *) \
254 aout_link_hash_lookup (&(table)->root, (string), (create), (copy),\
255 (follow)))
256
257/* Traverse a Linux link hash table. */
258
259#define linux_link_hash_traverse(table, func, info) \
260 (aout_link_hash_traverse \
261 (&(table)->root, \
262 (boolean (*) PARAMS ((struct aout_link_hash_entry *, PTR))) (func), \
263 (info)))
264
265/* Get the Linux link hash table from the info structure. This is
266 just a cast. */
267
268#define linux_hash_table(p) ((struct linux_link_hash_table *) ((p)->hash))
269
270/* Store the information for a new fixup. */
271
272static struct fixup *
273new_fixup (info, h, value, builtin)
274 struct bfd_link_info *info;
275 struct linux_link_hash_entry *h;
276 bfd_vma value;
277 int builtin;
278{
279 struct fixup *f;
280
281 f = (struct fixup *) bfd_hash_allocate (&info->hash->table,
282 sizeof (struct fixup));
283 if (f == NULL)
284 return f;
285 f->next = linux_hash_table (info)->fixup_list;
286 linux_hash_table (info)->fixup_list = f;
287 f->h = h;
288 f->value = value;
289 f->builtin = builtin;
290 f->jump = 0;
291 ++linux_hash_table (info)->fixup_count;
292 return f;
293}
294
295/* We come here once we realize that we are going to link to a shared
296 library. We need to create a special section that contains the
297 fixup table, and we ultimately need to add a pointer to this into
298 the set vector for SHARABLE_CONFLICTS. At this point we do not
299 know the size of the section, but that's OK - we just need to
300 create it for now. */
301
302static boolean
303linux_link_create_dynamic_sections (abfd, info)
304 bfd *abfd;
121089cb 305 struct bfd_link_info *info ATTRIBUTE_UNUSED;
252b5132
RH
306{
307 flagword flags;
308 register asection *s;
309
310 /* Note that we set the SEC_IN_MEMORY flag. */
311 flags = SEC_ALLOC | SEC_LOAD | SEC_HAS_CONTENTS | SEC_IN_MEMORY;
312
313 /* We choose to use the name ".linux-dynamic" for the fixup table.
314 Why not? */
315 s = bfd_make_section (abfd, ".linux-dynamic");
316 if (s == NULL
317 || ! bfd_set_section_flags (abfd, s, flags)
318 || ! bfd_set_section_alignment (abfd, s, 2))
319 return false;
320 s->_raw_size = 0;
321 s->contents = 0;
322
323 return true;
324}
325
326/* Function to add a single symbol to the linker hash table. This is
327 a wrapper around _bfd_generic_link_add_one_symbol which handles the
328 tweaking needed for dynamic linking support. */
329
330static boolean
331linux_add_one_symbol (info, abfd, name, flags, section, value, string,
332 copy, collect, hashp)
333 struct bfd_link_info *info;
334 bfd *abfd;
335 const char *name;
336 flagword flags;
337 asection *section;
338 bfd_vma value;
339 const char *string;
340 boolean copy;
341 boolean collect;
342 struct bfd_link_hash_entry **hashp;
343{
344 struct linux_link_hash_entry *h;
345 boolean insert;
346
347 /* Look up and see if we already have this symbol in the hash table.
348 If we do, and the defining entry is from a shared library, we
349 need to create the dynamic sections.
350
351 FIXME: What if abfd->xvec != info->hash->creator? We may want to
352 be able to link Linux a.out and ELF objects together, but serious
353 confusion is possible. */
354
355 insert = false;
356
357 if (! info->relocateable
358 && linux_hash_table (info)->dynobj == NULL
359 && strcmp (name, SHARABLE_CONFLICTS) == 0
360 && (flags & BSF_CONSTRUCTOR) != 0
361 && abfd->xvec == info->hash->creator)
362 {
363 if (! linux_link_create_dynamic_sections (abfd, info))
364 return false;
365 linux_hash_table (info)->dynobj = abfd;
366 insert = true;
367 }
368
369 if (bfd_is_abs_section (section)
370 && abfd->xvec == info->hash->creator)
371 {
372 h = linux_link_hash_lookup (linux_hash_table (info), name, false,
373 false, false);
374 if (h != NULL
375 && (h->root.root.type == bfd_link_hash_defined
376 || h->root.root.type == bfd_link_hash_defweak))
377 {
378 struct fixup *f;
379
380 if (hashp != NULL)
381 *hashp = (struct bfd_link_hash_entry *) h;
382
383 f = new_fixup (info, h, value, ! IS_PLT_SYM (name));
384 if (f == NULL)
385 return false;
386 f->jump = IS_PLT_SYM (name);
387
388 return true;
389 }
390 }
391
392 /* Do the usual procedure for adding a symbol. */
393 if (! _bfd_generic_link_add_one_symbol (info, abfd, name, flags, section,
394 value, string, copy, collect,
395 hashp))
396 return false;
397
398 /* Insert a pointer to our table in the set vector. The dynamic
399 linker requires this information */
400 if (insert)
401 {
402 asection *s;
403
404 /* Here we do our special thing to add the pointer to the
405 dynamic section in the SHARABLE_CONFLICTS set vector. */
406 s = bfd_get_section_by_name (linux_hash_table (info)->dynobj,
407 ".linux-dynamic");
408 BFD_ASSERT (s != NULL);
409
410 if (! (_bfd_generic_link_add_one_symbol
411 (info, linux_hash_table (info)->dynobj, SHARABLE_CONFLICTS,
412 BSF_GLOBAL | BSF_CONSTRUCTOR, s, 0, NULL, false, false, NULL)))
413 return false;
414 }
415
416 return true;
417}
418
419/* We will crawl the hash table and come here for every global symbol.
420 We will examine each entry and see if there are indications that we
421 need to add a fixup. There are two possible cases - one is where
422 you have duplicate definitions of PLT or GOT symbols - these will
423 have already been caught and added as "builtin" fixups. If we find
424 that the corresponding non PLT/GOT symbol is also present, we
425 convert it to a regular fixup instead.
426
427 This function is called via linux_link_hash_traverse. */
428
429static boolean
430linux_tally_symbols (h, data)
431 struct linux_link_hash_entry *h;
432 PTR data;
433{
434 struct bfd_link_info *info = (struct bfd_link_info *) data;
435 struct fixup *f, *f1;
436 int is_plt;
437 struct linux_link_hash_entry *h1, *h2;
438 boolean exists;
439
440 if (h->root.root.type == bfd_link_hash_undefined
441 && strncmp (h->root.root.root.string, NEEDS_SHRLIB,
442 sizeof NEEDS_SHRLIB - 1) == 0)
443 {
444 const char *name;
445 char *p;
446 char *alloc = NULL;
447
448 name = h->root.root.root.string + sizeof NEEDS_SHRLIB - 1;
449 p = strrchr (name, '_');
450 if (p != NULL)
451 alloc = (char *) bfd_malloc (strlen (name) + 1);
452
453 if (p == NULL || alloc == NULL)
454 (*_bfd_error_handler) (_("Output file requires shared library `%s'\n"),
455 name);
456 else
457 {
458 strcpy (alloc, name);
459 p = strrchr (alloc, '_');
460 *p++ = '\0';
461 (*_bfd_error_handler)
462 (_("Output file requires shared library `%s.so.%s'\n"),
463 alloc, p);
464 free (alloc);
465 }
466
467 abort ();
468 }
469
470 /* If this symbol is not a PLT/GOT, we do not even need to look at it */
471 is_plt = IS_PLT_SYM (h->root.root.root.string);
472
473 if (is_plt || IS_GOT_SYM (h->root.root.root.string))
474 {
475 /* Look up this symbol twice. Once just as a regular lookup,
476 and then again following all of the indirect links until we
477 reach a real symbol. */
478 h1 = linux_link_hash_lookup (linux_hash_table (info),
479 (h->root.root.root.string
480 + sizeof PLT_REF_PREFIX - 1),
481 false, false, true);
482 /* h2 does not follow indirect symbols. */
483 h2 = linux_link_hash_lookup (linux_hash_table (info),
484 (h->root.root.root.string
485 + sizeof PLT_REF_PREFIX - 1),
486 false, false, false);
487
488 /* The real symbol must exist but if it is also an ABS symbol,
489 there is no need to have a fixup. This is because they both
490 came from the same library. If on the other hand, we had to
491 use an indirect symbol to get to the real symbol, we add the
492 fixup anyway, since there are cases where these symbols come
493 from different shared libraries */
494 if (h1 != NULL
495 && (((h1->root.root.type == bfd_link_hash_defined
496 || h1->root.root.type == bfd_link_hash_defweak)
497 && ! bfd_is_abs_section (h1->root.root.u.def.section))
498 || h2->root.root.type == bfd_link_hash_indirect))
499 {
500 /* See if there is a "builtin" fixup already present
501 involving this symbol. If so, convert it to a regular
502 fixup. In the end, this relaxes some of the requirements
503 about the order of performing fixups. */
504 exists = false;
505 for (f1 = linux_hash_table (info)->fixup_list;
506 f1 != NULL;
507 f1 = f1->next)
508 {
509 if ((f1->h != h && f1->h != h1)
510 || (! f1->builtin && ! f1->jump))
511 continue;
512 if (f1->h == h1)
513 exists = true;
514 if (! exists
515 && bfd_is_abs_section (h->root.root.u.def.section))
516 {
517 f = new_fixup (info, h1, f1->h->root.root.u.def.value, 0);
518 f->jump = is_plt;
519 }
520 f1->h = h1;
521 f1->jump = is_plt;
522 f1->builtin = 0;
523 exists = true;
524 }
525 if (! exists
526 && bfd_is_abs_section (h->root.root.u.def.section))
527 {
528 f = new_fixup (info, h1, h->root.root.u.def.value, 0);
529 if (f == NULL)
530 {
531 /* FIXME: No way to return error. */
532 abort ();
533 }
534 f->jump = is_plt;
535 }
536 }
537
538 /* Quick and dirty way of stripping these symbols from the
539 symtab. */
540 if (bfd_is_abs_section (h->root.root.u.def.section))
541 h->root.written = true;
542 }
543
544 return true;
545}
546
547/* This is called to set the size of the .linux-dynamic section is.
548 It is called by the Linux linker emulation before_allocation
549 routine. We have finished reading all of the input files, and now
550 we just scan the hash tables to find out how many additional fixups
551 are required. */
552
553boolean
554bfd_m68klinux_size_dynamic_sections (output_bfd, info)
555 bfd *output_bfd;
556 struct bfd_link_info *info;
557{
558 struct fixup *f;
559 asection *s;
560
561 if (output_bfd->xvec != &MY(vec))
562 return true;
563
564 /* First find the fixups... */
565 linux_link_hash_traverse (linux_hash_table (info),
566 linux_tally_symbols,
567 (PTR) info);
568
569 /* If there are builtin fixups, leave room for a marker. This is
570 used by the dynamic linker so that it knows that all that follow
571 are builtin fixups instead of regular fixups. */
572 for (f = linux_hash_table (info)->fixup_list; f != NULL; f = f->next)
573 {
574 if (f->builtin)
575 {
576 ++linux_hash_table (info)->fixup_count;
577 ++linux_hash_table (info)->local_builtins;
578 break;
579 }
580 }
581
582 if (linux_hash_table (info)->dynobj == NULL)
583 {
584 if (linux_hash_table (info)->fixup_count > 0)
585 abort ();
586 return true;
587 }
588
589 /* Allocate memory for our fixup table. We will fill it in later. */
590 s = bfd_get_section_by_name (linux_hash_table (info)->dynobj,
591 ".linux-dynamic");
592 if (s != NULL)
593 {
594 s->_raw_size = 8 + linux_hash_table (info)->fixup_count * 8;
595 s->contents = (bfd_byte *) bfd_alloc (output_bfd, s->_raw_size);
596 if (s->contents == NULL)
597 {
598 bfd_set_error (bfd_error_no_memory);
599 return false;
600 }
601 memset (s->contents, 0, (size_t) s->_raw_size);
602 }
603
604 return true;
605}
606
607/* We come here once we are ready to actually write the fixup table to
608 the output file. Scan the fixup tables and so forth and generate
609 the stuff we need. */
610
611static boolean
612linux_finish_dynamic_link (output_bfd, info)
613 bfd *output_bfd;
614 struct bfd_link_info *info;
615{
616 asection *s, *os, *is;
617 bfd_byte *fixup_table;
618 struct linux_link_hash_entry *h;
619 struct fixup *f;
620 unsigned int new_addr;
621 int section_offset;
622 unsigned int fixups_written;
623
624 if (linux_hash_table (info)->dynobj == NULL)
625 return true;
626
627 s = bfd_get_section_by_name (linux_hash_table (info)->dynobj,
628 ".linux-dynamic");
629 BFD_ASSERT (s != NULL);
630 os = s->output_section;
631 fixups_written = 0;
632
633#ifdef LINUX_LINK_DEBUG
634 printf ("Fixup table file offset: %x VMA: %x\n",
635 os->filepos + s->output_offset,
636 os->vma + s->output_offset);
637#endif
638
639 fixup_table = s->contents;
640 bfd_put_32 (output_bfd, linux_hash_table (info)->fixup_count, fixup_table);
641 fixup_table += 4;
642
643 /* Fill in fixup table. */
644 for (f = linux_hash_table (info)->fixup_list; f != NULL; f = f->next)
645 {
646 if (f->builtin)
647 continue;
648
649 if (f->h->root.root.type != bfd_link_hash_defined
650 && f->h->root.root.type != bfd_link_hash_defweak)
651 {
652 (*_bfd_error_handler)
653 (_("Symbol %s not defined for fixups\n"),
654 f->h->root.root.root.string);
655 continue;
656 }
657
658 is = f->h->root.root.u.def.section;
659 section_offset = is->output_section->vma + is->output_offset;
660 new_addr = f->h->root.root.u.def.value + section_offset;
661
662#ifdef LINUX_LINK_DEBUG
663 printf ("Fixup(%d) %s: %x %x\n",f->jump, f->h->root.root.string,
664 new_addr, f->value);
665#endif
666
667 if (f->jump)
668 {
669 bfd_put_32 (output_bfd, new_addr, fixup_table);
670 fixup_table += 4;
671 bfd_put_32 (output_bfd, f->value + 2, fixup_table);
672 fixup_table += 4;
673 }
674 else
675 {
676 bfd_put_32 (output_bfd, new_addr, fixup_table);
677 fixup_table += 4;
678 bfd_put_32 (output_bfd, f->value, fixup_table);
679 fixup_table += 4;
680 }
681 ++fixups_written;
682 }
683
684 if (linux_hash_table (info)->local_builtins != 0)
685 {
686 /* Special marker so we know to switch to the other type of fixup */
687 bfd_put_32 (output_bfd, 0, fixup_table);
688 fixup_table += 4;
689 bfd_put_32 (output_bfd, 0, fixup_table);
690 fixup_table += 4;
691 ++fixups_written;
692 for (f = linux_hash_table (info)->fixup_list; f != NULL; f = f->next)
693 {
694 if (! f->builtin)
695 continue;
696
697 if (f->h->root.root.type != bfd_link_hash_defined
698 && f->h->root.root.type != bfd_link_hash_defweak)
699 {
700 (*_bfd_error_handler)
701 (_("Symbol %s not defined for fixups\n"),
702 f->h->root.root.root.string);
703 continue;
704 }
705
706 is = f->h->root.root.u.def.section;
707 section_offset = is->output_section->vma + is->output_offset;
708 new_addr = f->h->root.root.u.def.value + section_offset;
709
710#ifdef LINUX_LINK_DEBUG
711 printf ("Fixup(B) %s: %x %x\n", f->h->root.root.string,
712 new_addr, f->value);
713#endif
714
715 bfd_put_32 (output_bfd, new_addr, fixup_table);
716 fixup_table += 4;
717 bfd_put_32 (output_bfd, f->value, fixup_table);
718 fixup_table += 4;
719 ++fixups_written;
720 }
721 }
722
723 if (linux_hash_table (info)->fixup_count != fixups_written)
724 {
725 (*_bfd_error_handler) (_("Warning: fixup count mismatch\n"));
726 while (linux_hash_table (info)->fixup_count > fixups_written)
727 {
728 bfd_put_32 (output_bfd, 0, fixup_table);
729 fixup_table += 4;
730 bfd_put_32 (output_bfd, 0, fixup_table);
731 fixup_table += 4;
732 ++fixups_written;
733 }
734 }
735
736 h = linux_link_hash_lookup (linux_hash_table (info),
737 "__BUILTIN_FIXUPS__",
738 false, false, false);
739
740 if (h != NULL
741 && (h->root.root.type == bfd_link_hash_defined
742 || h->root.root.type == bfd_link_hash_defweak))
743 {
744 is = h->root.root.u.def.section;
745 section_offset = is->output_section->vma + is->output_offset;
746 new_addr = h->root.root.u.def.value + section_offset;
747
748#ifdef LINUX_LINK_DEBUG
749 printf ("Builtin fixup table at %x\n", new_addr);
750#endif
751
752 bfd_put_32 (output_bfd, new_addr, fixup_table);
753 }
754 else
755 bfd_put_32 (output_bfd, 0, fixup_table);
756
757 if (bfd_seek (output_bfd, os->filepos + s->output_offset, SEEK_SET) != 0)
758 return false;
759
760 if (bfd_write ((PTR) s->contents, 1, s->_raw_size, output_bfd)
761 != s->_raw_size)
762 return false;
763
764 return true;
765}
766
767#define MY_bfd_link_hash_table_create linux_link_hash_table_create
768#define MY_add_one_symbol linux_add_one_symbol
769#define MY_finish_dynamic_link linux_finish_dynamic_link
770
771#define MY_zmagic_contiguous 1
772
773#include "aout-target.h"
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