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* ld-pe/pe-run.exp (proc test_direct_link_dll): Fix incorrect
[binutils-gdb.git] / bfd / mach-o.c
1 /* Mach-O support for BFD.
2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
3 Free Software Foundation, Inc.
4
5 This file is part of BFD, the Binary File Descriptor library.
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
11
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
16
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
21
22 #include "sysdep.h"
23 #include "mach-o.h"
24 #include "bfd.h"
25 #include "libbfd.h"
26 #include "libiberty.h"
27 #include "aout/stab_gnu.h"
28 #include <ctype.h>
29
30 #define bfd_mach_o_object_p bfd_mach_o_gen_object_p
31 #define bfd_mach_o_core_p bfd_mach_o_gen_core_p
32 #define bfd_mach_o_mkobject bfd_false
33
34 #define FILE_ALIGN(off, algn) \
35 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1 << (algn)))
36
37 static int bfd_mach_o_scan_read_symtab_symbols (bfd *);
38
39 unsigned int
40 bfd_mach_o_version (bfd *abfd)
41 {
42 bfd_mach_o_data_struct *mdata = NULL;
43
44 BFD_ASSERT (bfd_mach_o_valid (abfd));
45 mdata = bfd_mach_o_get_data (abfd);
46
47 return mdata->header.version;
48 }
49
50 bfd_boolean
51 bfd_mach_o_valid (bfd *abfd)
52 {
53 if (abfd == NULL || abfd->xvec == NULL)
54 return FALSE;
55
56 if (abfd->xvec->flavour != bfd_target_mach_o_flavour)
57 return FALSE;
58
59 if (bfd_mach_o_get_data (abfd) == NULL)
60 return FALSE;
61 return TRUE;
62 }
63
64 static INLINE bfd_boolean
65 mach_o_wide_p (bfd_mach_o_header *header)
66 {
67 switch (header->version)
68 {
69 case 1:
70 return FALSE;
71 case 2:
72 return TRUE;
73 default:
74 BFD_FAIL ();
75 return FALSE;
76 }
77 }
78
79 static INLINE bfd_boolean
80 bfd_mach_o_wide_p (bfd *abfd)
81 {
82 return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header);
83 }
84
85 /* Tables to translate well known Mach-O segment/section names to bfd
86 names. Use of canonical names (such as .text or .debug_frame) is required
87 by gdb. */
88
89 struct mach_o_section_name_xlat
90 {
91 const char *bfd_name;
92 const char *mach_o_name;
93 };
94
95 static const struct mach_o_section_name_xlat dwarf_section_names_xlat[] =
96 {
97 { ".debug_frame", "__debug_frame" },
98 { ".debug_info", "__debug_info" },
99 { ".debug_abbrev", "__debug_abbrev" },
100 { ".debug_aranges", "__debug_aranges" },
101 { ".debug_macinfo", "__debug_macinfo" },
102 { ".debug_line", "__debug_line" },
103 { ".debug_loc", "__debug_loc" },
104 { ".debug_pubnames", "__debug_pubnames" },
105 { ".debug_pubtypes", "__debug_pubtypes" },
106 { ".debug_str", "__debug_str" },
107 { ".debug_ranges", "__debug_ranges" },
108 { NULL, NULL}
109 };
110
111 static const struct mach_o_section_name_xlat text_section_names_xlat[] =
112 {
113 { ".text", "__text" },
114 { ".cstring", "__cstring" },
115 { ".eh_frame", "__eh_frame" },
116 { NULL, NULL}
117 };
118
119 static const struct mach_o_section_name_xlat data_section_names_xlat[] =
120 {
121 { ".data", "__data" },
122 { ".bss", "__bss" },
123 { NULL, NULL}
124 };
125
126 struct mach_o_segment_name_xlat
127 {
128 const char *segname;
129 const struct mach_o_section_name_xlat *sections;
130 };
131
132 static const struct mach_o_segment_name_xlat segsec_names_xlat[] =
133 {
134 { "__DWARF", dwarf_section_names_xlat },
135 { "__TEXT", text_section_names_xlat },
136 { "__DATA", data_section_names_xlat },
137 { NULL, NULL }
138 };
139
140
141 /* Mach-O to bfd names. */
142
143 static char *
144 bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, bfd_mach_o_section *section)
145 {
146 const struct mach_o_segment_name_xlat *seg;
147 char *res;
148 unsigned int len;
149 const char *pfx = "";
150
151 for (seg = segsec_names_xlat; seg->segname; seg++)
152 {
153 if (strcmp (seg->segname, section->segname) == 0)
154 {
155 const struct mach_o_section_name_xlat *sec;
156
157 for (sec = seg->sections; sec->mach_o_name; sec++)
158 {
159 if (strcmp (sec->mach_o_name, section->sectname) == 0)
160 {
161 len = strlen (sec->bfd_name);
162 res = bfd_alloc (abfd, len + 1);
163
164 if (res == NULL)
165 return NULL;
166 strcpy (res, sec->bfd_name);
167 return res;
168 }
169 }
170 }
171 }
172
173 len = strlen (section->segname) + 1
174 + strlen (section->sectname) + 1;
175
176 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
177 with an underscore. */
178 if (section->segname[0] != '_')
179 {
180 static const char seg_pfx[] = "LC_SEGMENT.";
181
182 pfx = seg_pfx;
183 len += sizeof (seg_pfx) - 1;
184 }
185
186 res = bfd_alloc (abfd, len);
187 if (res == NULL)
188 return NULL;
189 snprintf (res, len, "%s%s.%s", pfx, section->segname, section->sectname);
190 return res;
191 }
192
193 /* Convert a bfd section name to a Mach-O segment + section name. */
194
195 static void
196 bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
197 asection *sect,
198 bfd_mach_o_section *section)
199 {
200 const struct mach_o_segment_name_xlat *seg;
201 const char *name = bfd_get_section_name (abfd, sect);
202 const char *dot;
203 unsigned int len;
204 unsigned int seglen;
205 unsigned int seclen;
206
207 /* List of well known names. They all start with a dot. */
208 if (name[0] == '.')
209 for (seg = segsec_names_xlat; seg->segname; seg++)
210 {
211 const struct mach_o_section_name_xlat *sec;
212
213 for (sec = seg->sections; sec->mach_o_name; sec++)
214 {
215 if (strcmp (sec->bfd_name, name) == 0)
216 {
217 strcpy (section->segname, seg->segname);
218 strcpy (section->sectname, sec->mach_o_name);
219 return;
220 }
221 }
222 }
223
224 /* Strip LC_SEGMENT. prefix. */
225 if (strncmp (name, "LC_SEGMENT.", 11) == 0)
226 name += 11;
227
228 /* Find a dot. */
229 dot = strchr (name, '.');
230 len = strlen (name);
231
232 /* Try to split name into segment and section names. */
233 if (dot && dot != name)
234 {
235 seglen = dot - name;
236 seclen = len - (dot + 1 - name);
237
238 if (seglen < 16 && seclen < 16)
239 {
240 memcpy (section->segname, name, seglen);
241 section->segname[seglen] = 0;
242 memcpy (section->sectname, dot + 1, seclen);
243 section->sectname[seclen] = 0;
244 return;
245 }
246 }
247
248 if (len > 16)
249 len = 16;
250 memcpy (section->segname, name, len);
251 section->segname[len] = 0;
252 memcpy (section->sectname, name, len);
253 section->sectname[len] = 0;
254 }
255
256 /* Copy any private info we understand from the input symbol
257 to the output symbol. */
258
259 bfd_boolean
260 bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
261 asymbol *isymbol ATTRIBUTE_UNUSED,
262 bfd *obfd ATTRIBUTE_UNUSED,
263 asymbol *osymbol ATTRIBUTE_UNUSED)
264 {
265 return TRUE;
266 }
267
268 /* Copy any private info we understand from the input section
269 to the output section. */
270
271 bfd_boolean
272 bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED,
273 asection *isection ATTRIBUTE_UNUSED,
274 bfd *obfd ATTRIBUTE_UNUSED,
275 asection *osection ATTRIBUTE_UNUSED)
276 {
277 return TRUE;
278 }
279
280 /* Copy any private info we understand from the input bfd
281 to the output bfd. */
282
283 bfd_boolean
284 bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
285 {
286 if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
287 || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
288 return TRUE;
289
290 BFD_ASSERT (bfd_mach_o_valid (ibfd));
291 BFD_ASSERT (bfd_mach_o_valid (obfd));
292
293 /* FIXME: copy commands. */
294
295 return TRUE;
296 }
297
298 /* Count the total number of symbols. */
299
300 static long
301 bfd_mach_o_count_symbols (bfd *abfd)
302 {
303 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
304
305 if (mdata->symtab == NULL)
306 return 0;
307 return mdata->symtab->nsyms;
308 }
309
310 long
311 bfd_mach_o_get_symtab_upper_bound (bfd *abfd)
312 {
313 long nsyms = bfd_mach_o_count_symbols (abfd);
314
315 return ((nsyms + 1) * sizeof (asymbol *));
316 }
317
318 long
319 bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation)
320 {
321 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
322 long nsyms = bfd_mach_o_count_symbols (abfd);
323 bfd_mach_o_symtab_command *sym = mdata->symtab;
324 unsigned long j;
325
326 if (nsyms < 0)
327 return nsyms;
328
329 if (bfd_mach_o_scan_read_symtab_symbols (abfd) != 0)
330 {
331 fprintf (stderr,
332 "bfd_mach_o_canonicalize_symtab: unable to load symbols\n");
333 return 0;
334 }
335
336 BFD_ASSERT (sym->symbols != NULL);
337
338 for (j = 0; j < sym->nsyms; j++)
339 alocation[j] = &sym->symbols[j].symbol;
340
341 alocation[j] = NULL;
342
343 return nsyms;
344 }
345
346 void
347 bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
348 asymbol *symbol,
349 symbol_info *ret)
350 {
351 bfd_symbol_info (symbol, ret);
352 }
353
354 void
355 bfd_mach_o_print_symbol (bfd *abfd,
356 PTR afile,
357 asymbol *symbol,
358 bfd_print_symbol_type how)
359 {
360 FILE *file = (FILE *) afile;
361 const char *name;
362 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
363
364 switch (how)
365 {
366 case bfd_print_symbol_name:
367 fprintf (file, "%s", symbol->name);
368 break;
369 default:
370 bfd_print_symbol_vandf (abfd, (PTR) file, symbol);
371 if (asym->n_type & BFD_MACH_O_N_STAB)
372 name = bfd_get_stab_name (asym->n_type);
373 else
374 switch (asym->n_type & BFD_MACH_O_N_TYPE)
375 {
376 case BFD_MACH_O_N_UNDF:
377 name = "UND";
378 break;
379 case BFD_MACH_O_N_ABS:
380 name = "ABS";
381 break;
382 case BFD_MACH_O_N_INDR:
383 name = "INDR";
384 break;
385 case BFD_MACH_O_N_PBUD:
386 name = "PBUD";
387 break;
388 case BFD_MACH_O_N_SECT:
389 name = "SECT";
390 break;
391 default:
392 name = "???";
393 break;
394 }
395 if (name == NULL)
396 name = "";
397 fprintf (file, " %02x %-6s %02x %04x",
398 asym->n_type, name, asym->n_sect, asym->n_desc);
399 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
400 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
401 fprintf (file, " %-5s", symbol->section->name);
402 fprintf (file, " %s", symbol->name);
403 }
404 }
405
406 static void
407 bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
408 bfd_mach_o_cpu_subtype msubtype ATTRIBUTE_UNUSED,
409 enum bfd_architecture *type,
410 unsigned long *subtype)
411 {
412 *subtype = bfd_arch_unknown;
413
414 switch (mtype)
415 {
416 case BFD_MACH_O_CPU_TYPE_VAX: *type = bfd_arch_vax; break;
417 case BFD_MACH_O_CPU_TYPE_MC680x0: *type = bfd_arch_m68k; break;
418 case BFD_MACH_O_CPU_TYPE_I386:
419 *type = bfd_arch_i386;
420 *subtype = bfd_mach_i386_i386;
421 break;
422 case BFD_MACH_O_CPU_TYPE_X86_64:
423 *type = bfd_arch_i386;
424 *subtype = bfd_mach_x86_64;
425 break;
426 case BFD_MACH_O_CPU_TYPE_MIPS: *type = bfd_arch_mips; break;
427 case BFD_MACH_O_CPU_TYPE_MC98000: *type = bfd_arch_m98k; break;
428 case BFD_MACH_O_CPU_TYPE_HPPA: *type = bfd_arch_hppa; break;
429 case BFD_MACH_O_CPU_TYPE_ARM: *type = bfd_arch_arm; break;
430 case BFD_MACH_O_CPU_TYPE_MC88000: *type = bfd_arch_m88k; break;
431 case BFD_MACH_O_CPU_TYPE_SPARC:
432 *type = bfd_arch_sparc;
433 *subtype = bfd_mach_sparc;
434 break;
435 case BFD_MACH_O_CPU_TYPE_I860: *type = bfd_arch_i860; break;
436 case BFD_MACH_O_CPU_TYPE_ALPHA: *type = bfd_arch_alpha; break;
437 case BFD_MACH_O_CPU_TYPE_POWERPC:
438 *type = bfd_arch_powerpc;
439 *subtype = bfd_mach_ppc;
440 break;
441 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
442 *type = bfd_arch_powerpc;
443 *subtype = bfd_mach_ppc64;
444 break;
445 default:
446 *type = bfd_arch_unknown;
447 break;
448 }
449 }
450
451 static bfd_boolean
452 bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
453 {
454 unsigned char buf[32];
455 unsigned int size;
456
457 size = mach_o_wide_p (header) ?
458 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
459
460 bfd_h_put_32 (abfd, header->magic, buf + 0);
461 bfd_h_put_32 (abfd, header->cputype, buf + 4);
462 bfd_h_put_32 (abfd, header->cpusubtype, buf + 8);
463 bfd_h_put_32 (abfd, header->filetype, buf + 12);
464 bfd_h_put_32 (abfd, header->ncmds, buf + 16);
465 bfd_h_put_32 (abfd, header->sizeofcmds, buf + 20);
466 bfd_h_put_32 (abfd, header->flags, buf + 24);
467
468 if (mach_o_wide_p (header))
469 bfd_h_put_32 (abfd, header->reserved, buf + 28);
470
471 if (bfd_seek (abfd, 0, SEEK_SET) != 0
472 || bfd_bwrite ((PTR) buf, size, abfd) != size)
473 return FALSE;
474
475 return TRUE;
476 }
477
478 static int
479 bfd_mach_o_scan_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
480 {
481 bfd_mach_o_thread_command *cmd = &command->command.thread;
482 unsigned int i;
483 unsigned char buf[8];
484 unsigned int offset;
485 unsigned int nflavours;
486
487 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
488 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
489
490 offset = 8;
491 nflavours = 0;
492 for (i = 0; i < cmd->nflavours; i++)
493 {
494 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
495 BFD_ASSERT (cmd->flavours[i].offset == (command->offset + offset + 8));
496
497 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, buf);
498 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), buf + 4);
499
500 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
501 || bfd_bwrite ((PTR) buf, 8, abfd) != 8)
502 return -1;
503
504 offset += cmd->flavours[i].size + 8;
505 }
506
507 return 0;
508 }
509
510 long
511 bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
512 asection *asect)
513 {
514 return (asect->reloc_count + 1) * sizeof (arelent *);
515 }
516
517 long
518 bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
519 arelent **rels, asymbol **syms)
520 {
521 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
522 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
523 unsigned long i;
524 arelent *res;
525 char *native_relocs;
526 bfd_size_type native_size;
527
528 if (asect->reloc_count == 0)
529 return 0;
530
531 /* No need to go further if we don't know how to read relocs. */
532 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
533 return 0;
534
535 /* Allocate and read relocs. */
536 native_size = asect->reloc_count * BFD_MACH_O_RELENT_SIZE;
537 native_relocs = bfd_malloc (native_size);
538 if (native_relocs == NULL)
539 return -1;
540
541 if (bfd_seek (abfd, asect->rel_filepos, SEEK_SET) != 0
542 || bfd_bread (native_relocs, native_size, abfd) != native_size)
543 {
544 free (native_relocs);
545 return -1;
546 }
547
548 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
549 if (res == NULL)
550 {
551 free (native_relocs);
552 return -1;
553 }
554
555 for (i = 0; i < asect->reloc_count; i++)
556 {
557 char *buf = native_relocs + BFD_MACH_O_RELENT_SIZE * i;
558 bfd_mach_o_reloc_info reloc;
559 bfd_vma addr;
560 bfd_vma symnum;
561 asymbol **sym;
562
563 addr = bfd_get_32 (abfd, buf + 0);
564 symnum = bfd_get_32 (abfd, buf + 4);
565
566 if (addr & BFD_MACH_O_SR_SCATTERED)
567 {
568 unsigned int j;
569
570 /* Scattered relocation.
571 Extract section and offset from r_value. */
572 res[i].sym_ptr_ptr = NULL;
573 res[i].addend = 0;
574 for (j = 0; j < mdata->nsects; j++)
575 {
576 bfd_mach_o_section *sect = mdata->sections[j];
577 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
578 {
579 res[i].sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
580 res[i].addend = symnum - sect->addr;
581 break;
582 }
583 }
584 res[i].address = BFD_MACH_O_GET_SR_ADDRESS (addr);
585 reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr);
586 reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
587 reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL;
588 reloc.r_scattered = 1;
589 }
590 else
591 {
592 unsigned int num = BFD_MACH_O_GET_R_SYMBOLNUM (symnum);
593 res[i].addend = 0;
594 res[i].address = addr;
595 if (symnum & BFD_MACH_O_R_EXTERN)
596 sym = syms + num;
597 else
598 {
599 BFD_ASSERT (num != 0);
600 BFD_ASSERT (num <= mdata->nsects);
601 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
602 }
603 res[i].sym_ptr_ptr = sym;
604 reloc.r_type = BFD_MACH_O_GET_R_TYPE (symnum);
605 reloc.r_length = BFD_MACH_O_GET_R_LENGTH (symnum);
606 reloc.r_pcrel = (symnum & BFD_MACH_O_R_PCREL) ? 1 : 0;
607 reloc.r_scattered = 0;
608 }
609
610 if (!(*bed->_bfd_mach_o_swap_reloc_in)(&res[i], &reloc))
611 {
612 free (res);
613 free (native_relocs);
614 return -1;
615 }
616 rels[i] = &res[i];
617 }
618 rels[asect->reloc_count] = NULL;
619 asect->relocation = res;
620 free (native_relocs);
621 return i;
622 }
623
624 static bfd_boolean
625 bfd_mach_o_scan_write_relocs (bfd *abfd, bfd_mach_o_section *section)
626 {
627 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
628 unsigned int i;
629 arelent **entries;
630 asection *sec;
631 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
632
633 sec = section->bfdsection;
634 if (sec->reloc_count == 0)
635 return TRUE;
636
637 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
638 return TRUE;
639
640 /* Allocate relocation room. */
641 mdata->filelen = FILE_ALIGN(mdata->filelen, 2);
642 section->nreloc = sec->reloc_count;
643 sec->rel_filepos = mdata->filelen;
644 section->reloff = sec->rel_filepos;
645 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
646
647 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
648 return FALSE;
649
650 /* Convert and write. */
651 entries = section->bfdsection->orelocation;
652 for (i = 0; i < section->nreloc; i++)
653 {
654 arelent *rel = entries[i];
655 char buf[8];
656 bfd_mach_o_reloc_info info, *pinfo = &info;
657
658 /* Convert relocation to an intermediate representation. */
659 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
660 return FALSE;
661
662 /* Lower the relocation info. */
663 if (pinfo->r_scattered)
664 {
665 unsigned long v;
666
667 v = BFD_MACH_O_SR_SCATTERED
668 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
669 | BFD_MACH_O_SET_SR_LENGTH(pinfo->r_length)
670 | BFD_MACH_O_SET_SR_TYPE(pinfo->r_type)
671 | BFD_MACH_O_SET_SR_ADDRESS(pinfo->r_address);
672 bfd_put_32 (abfd, v, buf);
673 bfd_put_32 (abfd, pinfo->r_value, buf + 4);
674 }
675 else
676 {
677 unsigned long v;
678
679 bfd_put_32 (abfd, pinfo->r_address, buf);
680 v = BFD_MACH_O_SET_R_SYMBOLNUM (pinfo->r_value)
681 | (pinfo->r_pcrel ? BFD_MACH_O_R_PCREL : 0)
682 | BFD_MACH_O_SET_R_LENGTH (pinfo->r_length)
683 | (pinfo->r_extern ? BFD_MACH_O_R_EXTERN : 0)
684 | BFD_MACH_O_SET_R_TYPE (pinfo->r_type);
685 bfd_put_32 (abfd, v, buf + 4);
686 }
687
688 if (bfd_bwrite ((PTR) buf, BFD_MACH_O_RELENT_SIZE, abfd)
689 != BFD_MACH_O_RELENT_SIZE)
690 return FALSE;
691 }
692 return TRUE;
693 }
694
695 static int
696 bfd_mach_o_scan_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
697 {
698 unsigned char buf[BFD_MACH_O_SECTION_SIZE];
699
700 memcpy (buf, section->sectname, 16);
701 memcpy (buf + 16, section->segname, 16);
702 bfd_h_put_32 (abfd, section->addr, buf + 32);
703 bfd_h_put_32 (abfd, section->size, buf + 36);
704 bfd_h_put_32 (abfd, section->offset, buf + 40);
705 bfd_h_put_32 (abfd, section->align, buf + 44);
706 bfd_h_put_32 (abfd, section->reloff, buf + 48);
707 bfd_h_put_32 (abfd, section->nreloc, buf + 52);
708 bfd_h_put_32 (abfd, section->flags, buf + 56);
709 bfd_h_put_32 (abfd, section->reserved1, buf + 60);
710 bfd_h_put_32 (abfd, section->reserved2, buf + 64);
711
712 if (bfd_bwrite ((PTR) buf, BFD_MACH_O_SECTION_SIZE, abfd)
713 != BFD_MACH_O_SECTION_SIZE)
714 return -1;
715
716 return 0;
717 }
718
719 static int
720 bfd_mach_o_scan_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
721 {
722 unsigned char buf[BFD_MACH_O_SECTION_64_SIZE];
723
724 memcpy (buf, section->sectname, 16);
725 memcpy (buf + 16, section->segname, 16);
726 bfd_h_put_64 (abfd, section->addr, buf + 32);
727 bfd_h_put_64 (abfd, section->size, buf + 40);
728 bfd_h_put_32 (abfd, section->offset, buf + 48);
729 bfd_h_put_32 (abfd, section->align, buf + 52);
730 bfd_h_put_32 (abfd, section->reloff, buf + 56);
731 bfd_h_put_32 (abfd, section->nreloc, buf + 60);
732 bfd_h_put_32 (abfd, section->flags, buf + 64);
733 bfd_h_put_32 (abfd, section->reserved1, buf + 68);
734 bfd_h_put_32 (abfd, section->reserved2, buf + 72);
735 bfd_h_put_32 (abfd, section->reserved3, buf + 76);
736
737 if (bfd_bwrite ((PTR) buf, BFD_MACH_O_SECTION_64_SIZE, abfd)
738 != BFD_MACH_O_SECTION_64_SIZE)
739 return -1;
740
741 return 0;
742 }
743
744 static int
745 bfd_mach_o_scan_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
746 {
747 unsigned char buf[BFD_MACH_O_LC_SEGMENT_SIZE];
748 bfd_mach_o_segment_command *seg = &command->command.segment;
749 unsigned long i;
750
751 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
752
753 for (i = 0; i < seg->nsects; i++)
754 if (!bfd_mach_o_scan_write_relocs (abfd, &seg->sections[i]))
755 return -1;
756
757 memcpy (buf, seg->segname, 16);
758 bfd_h_put_32 (abfd, seg->vmaddr, buf + 16);
759 bfd_h_put_32 (abfd, seg->vmsize, buf + 20);
760 bfd_h_put_32 (abfd, seg->fileoff, buf + 24);
761 bfd_h_put_32 (abfd, seg->filesize, buf + 28);
762 bfd_h_put_32 (abfd, seg->maxprot, buf + 32);
763 bfd_h_put_32 (abfd, seg->initprot, buf + 36);
764 bfd_h_put_32 (abfd, seg->nsects, buf + 40);
765 bfd_h_put_32 (abfd, seg->flags, buf + 44);
766
767 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
768 || (bfd_bwrite ((PTR) buf, BFD_MACH_O_LC_SEGMENT_SIZE - 8, abfd)
769 != BFD_MACH_O_LC_SEGMENT_SIZE - 8))
770 return -1;
771
772 for (i = 0; i < seg->nsects; i++)
773 if (bfd_mach_o_scan_write_section_32 (abfd, &seg->sections[i]))
774 return -1;
775
776 return 0;
777 }
778
779 static int
780 bfd_mach_o_scan_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
781 {
782 unsigned char buf[BFD_MACH_O_LC_SEGMENT_64_SIZE];
783 bfd_mach_o_segment_command *seg = &command->command.segment;
784 unsigned long i;
785
786 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
787
788 for (i = 0; i < seg->nsects; i++)
789 if (!bfd_mach_o_scan_write_relocs (abfd, &seg->sections[i]))
790 return -1;
791
792 memcpy (buf, seg->segname, 16);
793 bfd_h_put_64 (abfd, seg->vmaddr, buf + 16);
794 bfd_h_put_64 (abfd, seg->vmsize, buf + 24);
795 bfd_h_put_64 (abfd, seg->fileoff, buf + 32);
796 bfd_h_put_64 (abfd, seg->filesize, buf + 40);
797 bfd_h_put_32 (abfd, seg->maxprot, buf + 48);
798 bfd_h_put_32 (abfd, seg->initprot, buf + 52);
799 bfd_h_put_32 (abfd, seg->nsects, buf + 56);
800 bfd_h_put_32 (abfd, seg->flags, buf + 60);
801
802 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
803 || (bfd_bwrite ((PTR) buf, BFD_MACH_O_LC_SEGMENT_64_SIZE - 8, abfd)
804 != BFD_MACH_O_LC_SEGMENT_64_SIZE - 8))
805 return -1;
806
807 for (i = 0; i < seg->nsects; i++)
808 if (bfd_mach_o_scan_write_section_64 (abfd, &seg->sections[i]))
809 return -1;
810
811 return 0;
812 }
813
814 static bfd_boolean
815 bfd_mach_o_scan_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
816 {
817 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
818 bfd_mach_o_symtab_command *sym = &command->command.symtab;
819 unsigned char buf[16];
820 unsigned long i;
821 unsigned int wide = bfd_mach_o_wide_p (abfd);
822 unsigned int symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
823 struct bfd_strtab_hash *strtab;
824 asymbol **symbols = bfd_get_outsymbols (abfd);
825
826 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
827
828 /* Write the symbols first. */
829 mdata->filelen = FILE_ALIGN(mdata->filelen, wide ? 3 : 2);
830 sym->symoff = mdata->filelen;
831 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
832 return FALSE;
833
834 sym->nsyms = bfd_get_symcount (abfd);
835 mdata->filelen += sym->nsyms * symlen;
836
837 strtab = _bfd_stringtab_init ();
838 if (strtab == NULL)
839 return FALSE;
840
841 for (i = 0; i < sym->nsyms; i++)
842 {
843 unsigned char buf[16];
844 bfd_size_type index;
845 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
846
847 /* Compute name index. */
848 /* An index of 0 always means the empty string. */
849 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
850 index = 0;
851 else
852 {
853 index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
854 if (index == (bfd_size_type) -1)
855 goto err;
856 }
857 bfd_h_put_32 (abfd, index, buf);
858 bfd_h_put_8 (abfd, s->n_type, buf + 4);
859 bfd_h_put_8 (abfd, s->n_sect, buf + 5);
860 bfd_h_put_16 (abfd, s->n_desc, buf + 6);
861 if (wide)
862 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, buf + 8);
863 else
864 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, buf + 8);
865
866 if (bfd_bwrite ((PTR) buf, symlen, abfd) != symlen)
867 goto err;
868 }
869 sym->strsize = _bfd_stringtab_size (strtab);
870 sym->stroff = mdata->filelen;
871 mdata->filelen += sym->strsize;
872
873 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
874 goto err;
875 _bfd_stringtab_free (strtab);
876
877 /* The command. */
878 bfd_h_put_32 (abfd, sym->symoff, buf);
879 bfd_h_put_32 (abfd, sym->nsyms, buf + 4);
880 bfd_h_put_32 (abfd, sym->stroff, buf + 8);
881 bfd_h_put_32 (abfd, sym->strsize, buf + 12);
882
883 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
884 || bfd_bwrite ((PTR) buf, 16, abfd) != 16)
885 return FALSE;
886
887 return TRUE;
888
889 err:
890 _bfd_stringtab_free (strtab);
891 return FALSE;
892 }
893
894 /* Process the symbols and generate Mach-O specific fields.
895 Number them. */
896
897 static bfd_boolean
898 bfd_mach_o_mangle_symbols (bfd *abfd)
899 {
900 unsigned long i;
901 asymbol **symbols = bfd_get_outsymbols (abfd);
902
903 for (i = 0; i < bfd_get_symcount (abfd); i++)
904 {
905 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
906
907 if (s->n_type == BFD_MACH_O_N_UNDF && !(s->symbol.flags & BSF_DEBUGGING))
908 {
909 /* As genuine Mach-O symbols type shouldn't be N_UNDF (undefined
910 symbols should be N_UNDEF | N_EXT), we suppose the back-end
911 values haven't been set. */
912 if (s->symbol.section == bfd_abs_section_ptr)
913 s->n_type = BFD_MACH_O_N_ABS;
914 else if (s->symbol.section == bfd_und_section_ptr)
915 {
916 s->n_type = BFD_MACH_O_N_UNDF;
917 if (s->symbol.flags & BSF_WEAK)
918 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
919 }
920 else if (s->symbol.section == bfd_com_section_ptr)
921 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
922 else
923 s->n_type = BFD_MACH_O_N_SECT;
924
925 if (s->symbol.flags & BSF_GLOBAL)
926 s->n_type |= BFD_MACH_O_N_EXT;
927 }
928
929 /* Compute section index. */
930 if (s->symbol.section != bfd_abs_section_ptr
931 && s->symbol.section != bfd_und_section_ptr
932 && s->symbol.section != bfd_com_section_ptr)
933 s->n_sect = s->symbol.section->target_index;
934
935 /* Number symbols. */
936 s->symbol.udata.i = i;
937 }
938 return TRUE;
939 }
940
941 bfd_boolean
942 bfd_mach_o_write_contents (bfd *abfd)
943 {
944 unsigned int i;
945 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
946
947 if (mdata->header.ncmds == 0)
948 if (!bfd_mach_o_build_commands (abfd))
949 return FALSE;
950
951 /* Now write header information. */
952 if (mdata->header.filetype == 0)
953 {
954 if (abfd->flags & EXEC_P)
955 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
956 else if (abfd->flags & DYNAMIC)
957 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
958 else
959 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
960 }
961 if (!bfd_mach_o_write_header (abfd, &mdata->header))
962 return FALSE;
963
964 /* Assign a number to each symbols. */
965 if (!bfd_mach_o_mangle_symbols (abfd))
966 return FALSE;
967
968 for (i = 0; i < mdata->header.ncmds; i++)
969 {
970 unsigned char buf[8];
971 bfd_mach_o_load_command *cur = &mdata->commands[i];
972 unsigned long typeflag;
973
974 typeflag = cur->type | (cur->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
975
976 bfd_h_put_32 (abfd, typeflag, buf);
977 bfd_h_put_32 (abfd, cur->len, buf + 4);
978
979 if (bfd_seek (abfd, cur->offset, SEEK_SET) != 0
980 || bfd_bwrite ((PTR) buf, 8, abfd) != 8)
981 return FALSE;
982
983 switch (cur->type)
984 {
985 case BFD_MACH_O_LC_SEGMENT:
986 if (bfd_mach_o_scan_write_segment_32 (abfd, cur) != 0)
987 return FALSE;
988 break;
989 case BFD_MACH_O_LC_SEGMENT_64:
990 if (bfd_mach_o_scan_write_segment_64 (abfd, cur) != 0)
991 return FALSE;
992 break;
993 case BFD_MACH_O_LC_SYMTAB:
994 if (!bfd_mach_o_scan_write_symtab (abfd, cur))
995 return FALSE;
996 break;
997 case BFD_MACH_O_LC_SYMSEG:
998 break;
999 case BFD_MACH_O_LC_THREAD:
1000 case BFD_MACH_O_LC_UNIXTHREAD:
1001 if (bfd_mach_o_scan_write_thread (abfd, cur) != 0)
1002 return FALSE;
1003 break;
1004 case BFD_MACH_O_LC_LOADFVMLIB:
1005 case BFD_MACH_O_LC_IDFVMLIB:
1006 case BFD_MACH_O_LC_IDENT:
1007 case BFD_MACH_O_LC_FVMFILE:
1008 case BFD_MACH_O_LC_PREPAGE:
1009 case BFD_MACH_O_LC_DYSYMTAB:
1010 case BFD_MACH_O_LC_LOAD_DYLIB:
1011 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
1012 case BFD_MACH_O_LC_ID_DYLIB:
1013 case BFD_MACH_O_LC_REEXPORT_DYLIB:
1014 case BFD_MACH_O_LC_LOAD_DYLINKER:
1015 case BFD_MACH_O_LC_ID_DYLINKER:
1016 case BFD_MACH_O_LC_PREBOUND_DYLIB:
1017 case BFD_MACH_O_LC_ROUTINES:
1018 case BFD_MACH_O_LC_SUB_FRAMEWORK:
1019 break;
1020 default:
1021 fprintf (stderr,
1022 "unable to write unknown load command 0x%lx\n",
1023 (unsigned long) cur->type);
1024 return FALSE;
1025 }
1026 }
1027
1028 return TRUE;
1029 }
1030
1031 /* Build Mach-O load commands from the sections. */
1032
1033 bfd_boolean
1034 bfd_mach_o_build_commands (bfd *abfd)
1035 {
1036 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1037 unsigned int wide = mach_o_wide_p (&mdata->header);
1038 bfd_mach_o_segment_command *seg;
1039 bfd_mach_o_section *sections;
1040 asection *sec;
1041 bfd_mach_o_load_command *cmd;
1042 bfd_mach_o_load_command *symtab_cmd;
1043 int target_index;
1044
1045 /* Return now if commands are already built. */
1046 if (mdata->header.ncmds)
1047 return FALSE;
1048
1049 /* Very simple version: 1 command (segment) containing all sections. */
1050 mdata->header.ncmds = 2;
1051 mdata->commands = bfd_alloc (abfd, mdata->header.ncmds
1052 * sizeof (bfd_mach_o_load_command));
1053 if (mdata->commands == NULL)
1054 return FALSE;
1055 cmd = &mdata->commands[0];
1056 seg = &cmd->command.segment;
1057
1058 seg->nsects = bfd_count_sections (abfd);
1059 sections = bfd_alloc (abfd, seg->nsects * sizeof (bfd_mach_o_section));
1060 if (sections == NULL)
1061 return FALSE;
1062 seg->sections = sections;
1063
1064 /* Set segment command. */
1065 if (wide)
1066 {
1067 cmd->type = BFD_MACH_O_LC_SEGMENT_64;
1068 cmd->offset = BFD_MACH_O_HEADER_64_SIZE;
1069 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
1070 + BFD_MACH_O_SECTION_64_SIZE * seg->nsects;
1071 }
1072 else
1073 {
1074 cmd->type = BFD_MACH_O_LC_SEGMENT;
1075 cmd->offset = BFD_MACH_O_HEADER_SIZE;
1076 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
1077 + BFD_MACH_O_SECTION_SIZE * seg->nsects;
1078 }
1079 cmd->type_required = FALSE;
1080 mdata->header.sizeofcmds = cmd->len;
1081 mdata->filelen = cmd->offset + cmd->len;
1082
1083 /* Set symtab command. */
1084 symtab_cmd = &mdata->commands[1];
1085
1086 symtab_cmd->type = BFD_MACH_O_LC_SYMTAB;
1087 symtab_cmd->offset = cmd->offset + cmd->len;
1088 symtab_cmd->len = 6 * 4;
1089 symtab_cmd->type_required = FALSE;
1090
1091 mdata->header.sizeofcmds += symtab_cmd->len;
1092 mdata->filelen += symtab_cmd->len;
1093
1094 /* Fill segment command. */
1095 memset (seg->segname, 0, sizeof (seg->segname));
1096 seg->vmaddr = 0;
1097 seg->fileoff = mdata->filelen;
1098 seg->filesize = 0;
1099 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
1100 | BFD_MACH_O_PROT_EXECUTE;
1101 seg->initprot = seg->maxprot;
1102 seg->flags = 0;
1103
1104 /* Create Mach-O sections. */
1105 target_index = 0;
1106 for (sec = abfd->sections; sec; sec = sec->next)
1107 {
1108 sections->bfdsection = sec;
1109 bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, sections);
1110 sections->addr = bfd_get_section_vma (abfd, sec);
1111 sections->size = bfd_get_section_size (sec);
1112 sections->align = bfd_get_section_alignment (abfd, sec);
1113
1114 if (sections->size != 0)
1115 {
1116 mdata->filelen = FILE_ALIGN (mdata->filelen, sections->align);
1117 sections->offset = mdata->filelen;
1118 }
1119 else
1120 sections->offset = 0;
1121 sections->reloff = 0;
1122 sections->nreloc = 0;
1123 sections->reserved1 = 0;
1124 sections->reserved2 = 0;
1125 sections->reserved3 = 0;
1126
1127 sec->filepos = sections->offset;
1128 sec->target_index = ++target_index;
1129
1130 mdata->filelen += sections->size;
1131 sections++;
1132 }
1133 seg->filesize = mdata->filelen - seg->fileoff;
1134 seg->vmsize = seg->filesize;
1135
1136 return TRUE;
1137 }
1138
1139 /* Set the contents of a section. */
1140
1141 bfd_boolean
1142 bfd_mach_o_set_section_contents (bfd *abfd,
1143 asection *section,
1144 const void * location,
1145 file_ptr offset,
1146 bfd_size_type count)
1147 {
1148 file_ptr pos;
1149
1150 /* This must be done first, because bfd_set_section_contents is
1151 going to set output_has_begun to TRUE. */
1152 if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd))
1153 return FALSE;
1154
1155 if (count == 0)
1156 return TRUE;
1157
1158 pos = section->filepos + offset;
1159 if (bfd_seek (abfd, pos, SEEK_SET) != 0
1160 || bfd_bwrite (location, count, abfd) != count)
1161 return FALSE;
1162
1163 return TRUE;
1164 }
1165
1166 int
1167 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
1168 struct bfd_link_info *info ATTRIBUTE_UNUSED)
1169 {
1170 return 0;
1171 }
1172
1173 /* Make an empty symbol. This is required only because
1174 bfd_make_section_anyway wants to create a symbol for the section. */
1175
1176 asymbol *
1177 bfd_mach_o_make_empty_symbol (bfd *abfd)
1178 {
1179 asymbol *new;
1180
1181 new = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
1182 if (new == NULL)
1183 return new;
1184 new->the_bfd = abfd;
1185 new->udata.i = 0;
1186 return new;
1187 }
1188
1189 static bfd_boolean
1190 bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
1191 {
1192 unsigned char buf[32];
1193 unsigned int size;
1194 bfd_vma (*get32) (const void *) = NULL;
1195
1196 /* Just read the magic number. */
1197 if (bfd_seek (abfd, 0, SEEK_SET) != 0
1198 || bfd_bread ((PTR) buf, 4, abfd) != 4)
1199 return FALSE;
1200
1201 if (bfd_getb32 (buf) == BFD_MACH_O_MH_MAGIC)
1202 {
1203 header->byteorder = BFD_ENDIAN_BIG;
1204 header->magic = BFD_MACH_O_MH_MAGIC;
1205 header->version = 1;
1206 get32 = bfd_getb32;
1207 }
1208 else if (bfd_getl32 (buf) == BFD_MACH_O_MH_MAGIC)
1209 {
1210 header->byteorder = BFD_ENDIAN_LITTLE;
1211 header->magic = BFD_MACH_O_MH_MAGIC;
1212 header->version = 1;
1213 get32 = bfd_getl32;
1214 }
1215 else if (bfd_getb32 (buf) == BFD_MACH_O_MH_MAGIC_64)
1216 {
1217 header->byteorder = BFD_ENDIAN_BIG;
1218 header->magic = BFD_MACH_O_MH_MAGIC_64;
1219 header->version = 2;
1220 get32 = bfd_getb32;
1221 }
1222 else if (bfd_getl32 (buf) == BFD_MACH_O_MH_MAGIC_64)
1223 {
1224 header->byteorder = BFD_ENDIAN_LITTLE;
1225 header->magic = BFD_MACH_O_MH_MAGIC_64;
1226 header->version = 2;
1227 get32 = bfd_getl32;
1228 }
1229 else
1230 {
1231 header->byteorder = BFD_ENDIAN_UNKNOWN;
1232 return FALSE;
1233 }
1234
1235 /* Once the size of the header is known, read the full header. */
1236 size = mach_o_wide_p (header) ?
1237 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1238
1239 if (bfd_seek (abfd, 0, SEEK_SET) != 0
1240 || bfd_bread ((PTR) buf, size, abfd) != size)
1241 return FALSE;
1242
1243 header->cputype = (*get32) (buf + 4);
1244 header->cpusubtype = (*get32) (buf + 8);
1245 header->filetype = (*get32) (buf + 12);
1246 header->ncmds = (*get32) (buf + 16);
1247 header->sizeofcmds = (*get32) (buf + 20);
1248 header->flags = (*get32) (buf + 24);
1249
1250 if (mach_o_wide_p (header))
1251 header->reserved = (*get32) (buf + 28);
1252
1253 return TRUE;
1254 }
1255
1256 static asection *
1257 bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section,
1258 unsigned long prot)
1259 {
1260 asection *bfdsec;
1261 char *sname;
1262 flagword flags;
1263
1264 sname = bfd_mach_o_convert_section_name_to_bfd (abfd, section);
1265 if (sname == NULL)
1266 return NULL;
1267
1268 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
1269 flags = SEC_HAS_CONTENTS | SEC_DEBUGGING;
1270 else
1271 {
1272 flags = SEC_ALLOC;
1273 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1274 != BFD_MACH_O_S_ZEROFILL)
1275 {
1276 flags |= SEC_HAS_CONTENTS | SEC_LOAD;
1277 if (prot & BFD_MACH_O_PROT_EXECUTE)
1278 flags |= SEC_CODE;
1279 if (prot & BFD_MACH_O_PROT_WRITE)
1280 flags |= SEC_DATA;
1281 else if (prot & BFD_MACH_O_PROT_READ)
1282 flags |= SEC_READONLY;
1283 }
1284 }
1285 if (section->nreloc != 0)
1286 flags |= SEC_RELOC;
1287
1288 bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, flags);
1289 if (bfdsec == NULL)
1290 return NULL;
1291
1292 bfdsec->vma = section->addr;
1293 bfdsec->lma = section->addr;
1294 bfdsec->size = section->size;
1295 bfdsec->filepos = section->offset;
1296 bfdsec->alignment_power = section->align;
1297 bfdsec->segment_mark = 0;
1298 bfdsec->reloc_count = section->nreloc;
1299 bfdsec->rel_filepos = section->reloff;
1300
1301 return bfdsec;
1302 }
1303
1304 static int
1305 bfd_mach_o_scan_read_section_32 (bfd *abfd,
1306 bfd_mach_o_section *section,
1307 unsigned int offset,
1308 unsigned long prot)
1309 {
1310 unsigned char buf[BFD_MACH_O_SECTION_SIZE];
1311
1312 if (bfd_seek (abfd, offset, SEEK_SET) != 0
1313 || (bfd_bread ((PTR) buf, BFD_MACH_O_SECTION_SIZE, abfd)
1314 != BFD_MACH_O_SECTION_SIZE))
1315 return -1;
1316
1317 memcpy (section->sectname, buf, 16);
1318 section->sectname[16] = '\0';
1319 memcpy (section->segname, buf + 16, 16);
1320 section->segname[16] = '\0';
1321 section->addr = bfd_h_get_32 (abfd, buf + 32);
1322 section->size = bfd_h_get_32 (abfd, buf + 36);
1323 section->offset = bfd_h_get_32 (abfd, buf + 40);
1324 section->align = bfd_h_get_32 (abfd, buf + 44);
1325 section->reloff = bfd_h_get_32 (abfd, buf + 48);
1326 section->nreloc = bfd_h_get_32 (abfd, buf + 52);
1327 section->flags = bfd_h_get_32 (abfd, buf + 56);
1328 section->reserved1 = bfd_h_get_32 (abfd, buf + 60);
1329 section->reserved2 = bfd_h_get_32 (abfd, buf + 64);
1330 section->reserved3 = 0;
1331 section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section, prot);
1332
1333 if (section->bfdsection == NULL)
1334 return -1;
1335
1336 return 0;
1337 }
1338
1339 static int
1340 bfd_mach_o_scan_read_section_64 (bfd *abfd,
1341 bfd_mach_o_section *section,
1342 unsigned int offset,
1343 unsigned long prot)
1344 {
1345 unsigned char buf[BFD_MACH_O_SECTION_64_SIZE];
1346
1347 if (bfd_seek (abfd, offset, SEEK_SET) != 0
1348 || (bfd_bread ((PTR) buf, BFD_MACH_O_SECTION_64_SIZE, abfd)
1349 != BFD_MACH_O_SECTION_64_SIZE))
1350 return -1;
1351
1352 memcpy (section->sectname, buf, 16);
1353 section->sectname[16] = '\0';
1354 memcpy (section->segname, buf + 16, 16);
1355 section->segname[16] = '\0';
1356 section->addr = bfd_h_get_64 (abfd, buf + 32);
1357 section->size = bfd_h_get_64 (abfd, buf + 40);
1358 section->offset = bfd_h_get_32 (abfd, buf + 48);
1359 section->align = bfd_h_get_32 (abfd, buf + 52);
1360 section->reloff = bfd_h_get_32 (abfd, buf + 56);
1361 section->nreloc = bfd_h_get_32 (abfd, buf + 60);
1362 section->flags = bfd_h_get_32 (abfd, buf + 64);
1363 section->reserved1 = bfd_h_get_32 (abfd, buf + 68);
1364 section->reserved2 = bfd_h_get_32 (abfd, buf + 72);
1365 section->reserved3 = bfd_h_get_32 (abfd, buf + 76);
1366 section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section, prot);
1367
1368 if (section->bfdsection == NULL)
1369 return -1;
1370
1371 return 0;
1372 }
1373
1374 static int
1375 bfd_mach_o_scan_read_section (bfd *abfd,
1376 bfd_mach_o_section *section,
1377 unsigned int offset,
1378 unsigned long prot,
1379 unsigned int wide)
1380 {
1381 if (wide)
1382 return bfd_mach_o_scan_read_section_64 (abfd, section, offset, prot);
1383 else
1384 return bfd_mach_o_scan_read_section_32 (abfd, section, offset, prot);
1385 }
1386
1387 static int
1388 bfd_mach_o_scan_read_symtab_symbol (bfd *abfd,
1389 bfd_mach_o_symtab_command *sym,
1390 bfd_mach_o_asymbol *s,
1391 unsigned long i)
1392 {
1393 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1394 unsigned int wide = mach_o_wide_p (&mdata->header);
1395 unsigned int symwidth =
1396 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
1397 unsigned int symoff = sym->symoff + (i * symwidth);
1398 unsigned char buf[16];
1399 unsigned char type = -1;
1400 unsigned char section = -1;
1401 short desc = -1;
1402 symvalue value = -1;
1403 unsigned long stroff = -1;
1404 unsigned int symtype = -1;
1405
1406 BFD_ASSERT (sym->strtab != NULL);
1407
1408 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
1409 || bfd_bread ((PTR) buf, symwidth, abfd) != symwidth)
1410 {
1411 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: unable to read %d bytes at %lu\n",
1412 symwidth, (unsigned long) symoff);
1413 return -1;
1414 }
1415
1416 stroff = bfd_h_get_32 (abfd, buf);
1417 type = bfd_h_get_8 (abfd, buf + 4);
1418 symtype = type & BFD_MACH_O_N_TYPE;
1419 section = bfd_h_get_8 (abfd, buf + 5);
1420 desc = bfd_h_get_16 (abfd, buf + 6);
1421 if (wide)
1422 value = bfd_h_get_64 (abfd, buf + 8);
1423 else
1424 value = bfd_h_get_32 (abfd, buf + 8);
1425
1426 if (stroff >= sym->strsize)
1427 {
1428 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: symbol name out of range (%lu >= %lu)\n",
1429 (unsigned long) stroff, (unsigned long) sym->strsize);
1430 return -1;
1431 }
1432
1433 s->symbol.the_bfd = abfd;
1434 s->symbol.name = sym->strtab + stroff;
1435 s->symbol.value = value;
1436 s->symbol.flags = 0x0;
1437 s->symbol.udata.i = 0;
1438 s->n_type = type;
1439 s->n_sect = section;
1440 s->n_desc = desc;
1441
1442 if (type & BFD_MACH_O_N_STAB)
1443 {
1444 s->symbol.flags |= BSF_DEBUGGING;
1445 s->symbol.section = bfd_und_section_ptr;
1446 switch (type)
1447 {
1448 case N_FUN:
1449 case N_STSYM:
1450 case N_LCSYM:
1451 case N_BNSYM:
1452 case N_SLINE:
1453 case N_ENSYM:
1454 case N_ECOMM:
1455 case N_ECOML:
1456 case N_GSYM:
1457 if ((section > 0) && (section <= mdata->nsects))
1458 {
1459 s->symbol.section = mdata->sections[section - 1]->bfdsection;
1460 s->symbol.value =
1461 s->symbol.value - mdata->sections[section - 1]->addr;
1462 }
1463 break;
1464 }
1465 }
1466 else
1467 {
1468 if (type & BFD_MACH_O_N_PEXT)
1469 s->symbol.flags |= BSF_GLOBAL;
1470
1471 if (type & BFD_MACH_O_N_EXT)
1472 s->symbol.flags |= BSF_GLOBAL;
1473
1474 if (!(type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)))
1475 s->symbol.flags |= BSF_LOCAL;
1476
1477 switch (symtype)
1478 {
1479 case BFD_MACH_O_N_UNDF:
1480 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
1481 && s->symbol.value != 0)
1482 {
1483 /* A common symbol. */
1484 s->symbol.section = bfd_com_section_ptr;
1485 s->symbol.flags = BSF_NO_FLAGS;
1486 }
1487 else
1488 {
1489 s->symbol.section = bfd_und_section_ptr;
1490 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
1491 s->symbol.flags |= BSF_WEAK;
1492 }
1493 break;
1494 case BFD_MACH_O_N_PBUD:
1495 s->symbol.section = bfd_und_section_ptr;
1496 break;
1497 case BFD_MACH_O_N_ABS:
1498 s->symbol.section = bfd_abs_section_ptr;
1499 break;
1500 case BFD_MACH_O_N_SECT:
1501 if ((section > 0) && (section <= mdata->nsects))
1502 {
1503 s->symbol.section = mdata->sections[section - 1]->bfdsection;
1504 s->symbol.value =
1505 s->symbol.value - mdata->sections[section - 1]->addr;
1506 }
1507 else
1508 {
1509 /* Mach-O uses 0 to mean "no section"; not an error. */
1510 if (section != 0)
1511 {
1512 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
1513 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined\n",
1514 s->symbol.name, section, mdata->nsects);
1515 }
1516 s->symbol.section = bfd_und_section_ptr;
1517 }
1518 break;
1519 case BFD_MACH_O_N_INDR:
1520 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
1521 "symbol \"%s\" is unsupported 'indirect' reference: setting to undefined\n",
1522 s->symbol.name);
1523 s->symbol.section = bfd_und_section_ptr;
1524 break;
1525 default:
1526 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
1527 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined\n",
1528 s->symbol.name, symtype);
1529 s->symbol.section = bfd_und_section_ptr;
1530 break;
1531 }
1532 }
1533
1534 return 0;
1535 }
1536
1537 static int
1538 bfd_mach_o_scan_read_symtab_strtab (bfd *abfd)
1539 {
1540 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1541 bfd_mach_o_symtab_command *sym = mdata->symtab;
1542
1543 /* Fail if there is no symtab. */
1544 if (sym == NULL)
1545 return -1;
1546
1547 /* Success if already loaded. */
1548 if (sym->strtab)
1549 return 0;
1550
1551 if (abfd->flags & BFD_IN_MEMORY)
1552 {
1553 struct bfd_in_memory *b;
1554
1555 b = (struct bfd_in_memory *) abfd->iostream;
1556
1557 if ((sym->stroff + sym->strsize) > b->size)
1558 {
1559 bfd_set_error (bfd_error_file_truncated);
1560 return -1;
1561 }
1562 sym->strtab = (char *) b->buffer + sym->stroff;
1563 }
1564 else
1565 {
1566 sym->strtab = bfd_alloc (abfd, sym->strsize);
1567 if (sym->strtab == NULL)
1568 return -1;
1569
1570 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
1571 || bfd_bread ((PTR) sym->strtab, sym->strsize, abfd) != sym->strsize)
1572 {
1573 bfd_set_error (bfd_error_file_truncated);
1574 return -1;
1575 }
1576 }
1577
1578 return 0;
1579 }
1580
1581 static int
1582 bfd_mach_o_scan_read_symtab_symbols (bfd *abfd)
1583 {
1584 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1585 bfd_mach_o_symtab_command *sym = mdata->symtab;
1586 unsigned long i;
1587 int ret;
1588
1589 if (sym->symbols)
1590 return 0;
1591
1592 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
1593
1594 if (sym->symbols == NULL)
1595 {
1596 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbols: unable to allocate memory for symbols\n");
1597 return -1;
1598 }
1599
1600 ret = bfd_mach_o_scan_read_symtab_strtab (abfd);
1601 if (ret != 0)
1602 return ret;
1603
1604 for (i = 0; i < sym->nsyms; i++)
1605 {
1606 ret = bfd_mach_o_scan_read_symtab_symbol (abfd, sym, &sym->symbols[i], i);
1607 if (ret != 0)
1608 return ret;
1609 }
1610
1611 return 0;
1612 }
1613
1614 int
1615 bfd_mach_o_scan_read_dysymtab_symbol (bfd *abfd,
1616 bfd_mach_o_dysymtab_command *dysym,
1617 bfd_mach_o_symtab_command *sym,
1618 bfd_mach_o_asymbol *s,
1619 unsigned long i)
1620 {
1621 unsigned long isymoff = dysym->indirectsymoff + (i * 4);
1622 unsigned long symindex;
1623 unsigned char buf[4];
1624
1625 BFD_ASSERT (i < dysym->nindirectsyms);
1626
1627 if (bfd_seek (abfd, isymoff, SEEK_SET) != 0
1628 || bfd_bread ((PTR) buf, 4, abfd) != 4)
1629 {
1630 fprintf (stderr, "bfd_mach_o_scan_read_dysymtab_symbol: unable to read %lu bytes at %lu\n",
1631 (unsigned long) 4, isymoff);
1632 return -1;
1633 }
1634 symindex = bfd_h_get_32 (abfd, buf);
1635
1636 return bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, symindex);
1637 }
1638
1639 static const char *
1640 bfd_mach_o_i386_flavour_string (unsigned int flavour)
1641 {
1642 switch ((int) flavour)
1643 {
1644 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
1645 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
1646 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
1647 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
1648 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
1649 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
1650 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
1651 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
1652 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
1653 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
1654 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
1655 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
1656 case BFD_MACH_O_THREAD_STATE_NONE: return "THREAD_STATE_NONE";
1657 default: return "UNKNOWN";
1658 }
1659 }
1660
1661 static const char *
1662 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
1663 {
1664 switch ((int) flavour)
1665 {
1666 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
1667 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
1668 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
1669 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
1670 default: return "UNKNOWN";
1671 }
1672 }
1673
1674 static int
1675 bfd_mach_o_scan_read_dylinker (bfd *abfd,
1676 bfd_mach_o_load_command *command)
1677 {
1678 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1679 unsigned char buf[4];
1680 unsigned int nameoff;
1681 asection *bfdsec;
1682 char *sname;
1683 const char *prefix;
1684
1685 BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER)
1686 || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER));
1687
1688 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
1689 || bfd_bread ((PTR) buf, 4, abfd) != 4)
1690 return -1;
1691
1692 nameoff = bfd_h_get_32 (abfd, buf + 0);
1693
1694 cmd->name_offset = command->offset + nameoff;
1695 cmd->name_len = command->len - nameoff;
1696
1697 if (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)
1698 prefix = "LC_LOAD_DYLINKER";
1699 else if (command->type == BFD_MACH_O_LC_ID_DYLINKER)
1700 prefix = "LC_ID_DYLINKER";
1701 else
1702 abort ();
1703
1704 sname = bfd_alloc (abfd, strlen (prefix) + 1);
1705 if (sname == NULL)
1706 return -1;
1707 strcpy (sname, prefix);
1708
1709 bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, SEC_HAS_CONTENTS);
1710 if (bfdsec == NULL)
1711 return -1;
1712
1713 bfdsec->vma = 0;
1714 bfdsec->lma = 0;
1715 bfdsec->size = command->len - nameoff;
1716 bfdsec->filepos = command->offset + nameoff;
1717 bfdsec->alignment_power = 0;
1718
1719 cmd->section = bfdsec;
1720
1721 return 0;
1722 }
1723
1724 static int
1725 bfd_mach_o_scan_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1726 {
1727 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1728 unsigned char buf[16];
1729 unsigned int nameoff;
1730 asection *bfdsec;
1731 char *sname;
1732 const char *prefix;
1733
1734 switch (command->type)
1735 {
1736 case BFD_MACH_O_LC_LOAD_DYLIB:
1737 prefix = "LC_LOAD_DYLIB";
1738 break;
1739 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
1740 prefix = "LC_LOAD_WEAK_DYLIB";
1741 break;
1742 case BFD_MACH_O_LC_ID_DYLIB:
1743 prefix = "LC_ID_DYLIB";
1744 break;
1745 case BFD_MACH_O_LC_REEXPORT_DYLIB:
1746 prefix = "LC_REEXPORT_DYLIB";
1747 break;
1748 default:
1749 abort ();
1750 }
1751
1752 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
1753 || bfd_bread ((PTR) buf, 16, abfd) != 16)
1754 return -1;
1755
1756 nameoff = bfd_h_get_32 (abfd, buf + 0);
1757 cmd->timestamp = bfd_h_get_32 (abfd, buf + 4);
1758 cmd->current_version = bfd_h_get_32 (abfd, buf + 8);
1759 cmd->compatibility_version = bfd_h_get_32 (abfd, buf + 12);
1760
1761 cmd->name_offset = command->offset + nameoff;
1762 cmd->name_len = command->len - nameoff;
1763
1764 sname = bfd_alloc (abfd, strlen (prefix) + 1);
1765 if (sname == NULL)
1766 return -1;
1767 strcpy (sname, prefix);
1768
1769 bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, SEC_HAS_CONTENTS);
1770 if (bfdsec == NULL)
1771 return -1;
1772
1773 bfdsec->vma = 0;
1774 bfdsec->lma = 0;
1775 bfdsec->size = command->len - 8;
1776 bfdsec->filepos = command->offset + 8;
1777 bfdsec->alignment_power = 0;
1778
1779 cmd->section = bfdsec;
1780
1781 return 0;
1782 }
1783
1784 static int
1785 bfd_mach_o_scan_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED,
1786 bfd_mach_o_load_command *command ATTRIBUTE_UNUSED)
1787 {
1788 /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */
1789
1790 BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB);
1791 return 0;
1792 }
1793
1794 static int
1795 bfd_mach_o_scan_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
1796 {
1797 bfd_mach_o_data_struct *mdata = NULL;
1798 bfd_mach_o_thread_command *cmd = &command->command.thread;
1799 unsigned char buf[8];
1800 unsigned int offset;
1801 unsigned int nflavours;
1802 unsigned int i;
1803
1804 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1805 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1806
1807 BFD_ASSERT (bfd_mach_o_valid (abfd));
1808 mdata = bfd_mach_o_get_data (abfd);
1809
1810 offset = 8;
1811 nflavours = 0;
1812 while (offset != command->len)
1813 {
1814 if (offset >= command->len)
1815 return -1;
1816
1817 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
1818 || bfd_bread ((PTR) buf, 8, abfd) != 8)
1819 return -1;
1820
1821 offset += 8 + bfd_h_get_32 (abfd, buf + 4) * 4;
1822 nflavours++;
1823 }
1824
1825 cmd->flavours = bfd_alloc (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
1826 if (cmd->flavours == NULL)
1827 return -1;
1828 cmd->nflavours = nflavours;
1829
1830 offset = 8;
1831 nflavours = 0;
1832 while (offset != command->len)
1833 {
1834 if (offset >= command->len)
1835 return -1;
1836
1837 if (nflavours >= cmd->nflavours)
1838 return -1;
1839
1840 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
1841 || bfd_bread ((PTR) buf, 8, abfd) != 8)
1842 return -1;
1843
1844 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, buf);
1845 cmd->flavours[nflavours].offset = command->offset + offset + 8;
1846 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, buf + 4) * 4;
1847 offset += cmd->flavours[nflavours].size + 8;
1848 nflavours++;
1849 }
1850
1851 for (i = 0; i < nflavours; i++)
1852 {
1853 asection *bfdsec;
1854 unsigned int snamelen;
1855 char *sname;
1856 const char *flavourstr;
1857 const char *prefix = "LC_THREAD";
1858 unsigned int j = 0;
1859
1860 switch (mdata->header.cputype)
1861 {
1862 case BFD_MACH_O_CPU_TYPE_POWERPC:
1863 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1864 flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
1865 break;
1866 case BFD_MACH_O_CPU_TYPE_I386:
1867 case BFD_MACH_O_CPU_TYPE_X86_64:
1868 flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
1869 break;
1870 default:
1871 flavourstr = "UNKNOWN_ARCHITECTURE";
1872 break;
1873 }
1874
1875 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
1876 sname = bfd_alloc (abfd, snamelen);
1877 if (sname == NULL)
1878 return -1;
1879
1880 for (;;)
1881 {
1882 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
1883 if (bfd_get_section_by_name (abfd, sname) == NULL)
1884 break;
1885 j++;
1886 }
1887
1888 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
1889
1890 bfdsec->vma = 0;
1891 bfdsec->lma = 0;
1892 bfdsec->size = cmd->flavours[i].size;
1893 bfdsec->filepos = cmd->flavours[i].offset;
1894 bfdsec->alignment_power = 0x0;
1895
1896 cmd->section = bfdsec;
1897 }
1898
1899 return 0;
1900 }
1901
1902 static int
1903 bfd_mach_o_scan_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
1904 {
1905 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
1906 unsigned char buf[72];
1907
1908 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
1909
1910 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
1911 || bfd_bread ((PTR) buf, 72, abfd) != 72)
1912 return -1;
1913
1914 cmd->ilocalsym = bfd_h_get_32 (abfd, buf + 0);
1915 cmd->nlocalsym = bfd_h_get_32 (abfd, buf + 4);
1916 cmd->iextdefsym = bfd_h_get_32 (abfd, buf + 8);
1917 cmd->nextdefsym = bfd_h_get_32 (abfd, buf + 12);
1918 cmd->iundefsym = bfd_h_get_32 (abfd, buf + 16);
1919 cmd->nundefsym = bfd_h_get_32 (abfd, buf + 20);
1920 cmd->tocoff = bfd_h_get_32 (abfd, buf + 24);
1921 cmd->ntoc = bfd_h_get_32 (abfd, buf + 28);
1922 cmd->modtaboff = bfd_h_get_32 (abfd, buf + 32);
1923 cmd->nmodtab = bfd_h_get_32 (abfd, buf + 36);
1924 cmd->extrefsymoff = bfd_h_get_32 (abfd, buf + 40);
1925 cmd->nextrefsyms = bfd_h_get_32 (abfd, buf + 44);
1926 cmd->indirectsymoff = bfd_h_get_32 (abfd, buf + 48);
1927 cmd->nindirectsyms = bfd_h_get_32 (abfd, buf + 52);
1928 cmd->extreloff = bfd_h_get_32 (abfd, buf + 56);
1929 cmd->nextrel = bfd_h_get_32 (abfd, buf + 60);
1930 cmd->locreloff = bfd_h_get_32 (abfd, buf + 64);
1931 cmd->nlocrel = bfd_h_get_32 (abfd, buf + 68);
1932
1933 if (cmd->nmodtab != 0)
1934 {
1935 char buf[56];
1936 unsigned int i;
1937 int wide = bfd_mach_o_wide_p (abfd);
1938 unsigned int module_len = wide ? 56 : 52;
1939
1940 cmd->dylib_module =
1941 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
1942 if (cmd->dylib_module == NULL)
1943 return -1;
1944
1945 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
1946 return -1;
1947
1948 for (i = 0; i < cmd->nmodtab; i++)
1949 {
1950 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
1951 unsigned long v;
1952
1953 if (bfd_bread ((PTR) buf, module_len, abfd) != module_len)
1954 return -1;
1955
1956 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
1957 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
1958 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
1959 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
1960 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
1961 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
1962 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
1963 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
1964 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
1965 v = bfd_h_get_32 (abfd, buf +36);
1966 module->iinit = v & 0xffff;
1967 module->iterm = (v >> 16) & 0xffff;
1968 v = bfd_h_get_32 (abfd, buf + 40);
1969 module->ninit = v & 0xffff;
1970 module->nterm = (v >> 16) & 0xffff;
1971 if (wide)
1972 {
1973 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
1974 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
1975 }
1976 else
1977 {
1978 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
1979 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
1980 }
1981 }
1982 }
1983
1984 if (cmd->ntoc != 0)
1985 {
1986 char buf[8];
1987 unsigned int i;
1988
1989 cmd->dylib_toc = bfd_alloc
1990 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
1991 if (cmd->dylib_toc == NULL)
1992 return -1;
1993
1994 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
1995 return -1;
1996
1997 for (i = 0; i < cmd->ntoc; i++)
1998 {
1999 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2000
2001 if (bfd_bread ((PTR) buf, 8, abfd) != 8)
2002 return -1;
2003
2004 toc->symbol_index = bfd_h_get_32 (abfd, buf + 0);
2005 toc->module_index = bfd_h_get_32 (abfd, buf + 4);
2006 }
2007 }
2008
2009 if (cmd->nindirectsyms != 0)
2010 {
2011 char buf[4];
2012 unsigned int i;
2013
2014 cmd->indirect_syms = bfd_alloc
2015 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
2016 if (cmd->indirect_syms == NULL)
2017 return -1;
2018
2019 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2020 return -1;
2021
2022 for (i = 0; i < cmd->nindirectsyms; i++)
2023 {
2024 unsigned int *is = &cmd->indirect_syms[i];
2025
2026 if (bfd_bread ((PTR) buf, 4, abfd) != 4)
2027 return -1;
2028
2029 *is = bfd_h_get_32 (abfd, buf + 0);
2030 }
2031 }
2032
2033 if (cmd->nextrefsyms != 0)
2034 {
2035 char buf[4];
2036 unsigned long v;
2037 unsigned int i;
2038
2039 cmd->ext_refs = bfd_alloc
2040 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
2041 if (cmd->ext_refs == NULL)
2042 return -1;
2043
2044 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2045 return -1;
2046
2047 for (i = 0; i < cmd->nextrefsyms; i++)
2048 {
2049 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2050
2051 if (bfd_bread ((PTR) buf, 4, abfd) != 4)
2052 return -1;
2053
2054 v = bfd_h_get_32 (abfd, buf + 0);
2055 ref->isym = (v >> 8) & 0xffffff;
2056 ref->flags = v & 0xff;
2057 }
2058 }
2059
2060 return 0;
2061 }
2062
2063 static int
2064 bfd_mach_o_scan_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
2065 {
2066 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
2067 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2068 unsigned char buf[16];
2069
2070 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
2071
2072 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2073 || bfd_bread ((PTR) buf, 16, abfd) != 16)
2074 return -1;
2075
2076 symtab->symoff = bfd_h_get_32 (abfd, buf);
2077 symtab->nsyms = bfd_h_get_32 (abfd, buf + 4);
2078 symtab->stroff = bfd_h_get_32 (abfd, buf + 8);
2079 symtab->strsize = bfd_h_get_32 (abfd, buf + 12);
2080 symtab->symbols = NULL;
2081 symtab->strtab = NULL;
2082
2083 if (symtab->nsyms != 0)
2084 abfd->flags |= HAS_SYMS;
2085
2086 if (mdata->symtab)
2087 return -1;
2088 mdata->symtab = symtab;
2089 return 0;
2090 }
2091
2092 static int
2093 bfd_mach_o_scan_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
2094 {
2095 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
2096 asection *bfdsec;
2097 char *sname;
2098 static const char prefix[] = "LC_UUID";
2099
2100 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
2101
2102 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2103 || bfd_bread ((PTR) cmd->uuid, 16, abfd) != 16)
2104 return -1;
2105
2106 sname = bfd_alloc (abfd, strlen (prefix) + 1);
2107 if (sname == NULL)
2108 return -1;
2109 strcpy (sname, prefix);
2110
2111 bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, SEC_HAS_CONTENTS);
2112 if (bfdsec == NULL)
2113 return -1;
2114
2115 bfdsec->vma = 0;
2116 bfdsec->lma = 0;
2117 bfdsec->size = command->len - 8;
2118 bfdsec->filepos = command->offset + 8;
2119 bfdsec->alignment_power = 0;
2120
2121 cmd->section = bfdsec;
2122
2123 return 0;
2124 }
2125
2126 static int
2127 bfd_mach_o_scan_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
2128 {
2129 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
2130 char buf[8];
2131
2132 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2133 || bfd_bread ((PTR) buf, 8, abfd) != 8)
2134 return -1;
2135
2136 cmd->dataoff = bfd_get_32 (abfd, buf + 0);
2137 cmd->datasize = bfd_get_32 (abfd, buf + 4);
2138 return 0;
2139 }
2140
2141 static int
2142 bfd_mach_o_scan_read_str (bfd *abfd, bfd_mach_o_load_command *command)
2143 {
2144 bfd_mach_o_str_command *cmd = &command->command.str;
2145 char buf[8];
2146 unsigned long off;
2147
2148 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2149 || bfd_bread ((PTR) buf, 4, abfd) != 4)
2150 return -1;
2151
2152 off = bfd_get_32 (abfd, buf + 0);
2153 cmd->stroff = command->offset + off;
2154 cmd->str_len = command->len - off;
2155 cmd->str = bfd_alloc (abfd, cmd->str_len);
2156 if (cmd->str == NULL)
2157 return -1;
2158 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
2159 || bfd_bread ((PTR) cmd->str, cmd->str_len, abfd) != cmd->str_len)
2160 return -1;
2161 return 0;
2162 }
2163
2164 static int
2165 bfd_mach_o_scan_read_segment (bfd *abfd,
2166 bfd_mach_o_load_command *command,
2167 unsigned int wide)
2168 {
2169 unsigned char buf[64];
2170 bfd_mach_o_segment_command *seg = &command->command.segment;
2171 unsigned long i;
2172
2173 if (wide)
2174 {
2175 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
2176
2177 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2178 || bfd_bread ((PTR) buf, 64, abfd) != 64)
2179 return -1;
2180
2181 memcpy (seg->segname, buf, 16);
2182 seg->segname[16] = '\0';
2183
2184 seg->vmaddr = bfd_h_get_64 (abfd, buf + 16);
2185 seg->vmsize = bfd_h_get_64 (abfd, buf + 24);
2186 seg->fileoff = bfd_h_get_64 (abfd, buf + 32);
2187 seg->filesize = bfd_h_get_64 (abfd, buf + 40);
2188 seg->maxprot = bfd_h_get_32 (abfd, buf + 48);
2189 seg->initprot = bfd_h_get_32 (abfd, buf + 52);
2190 seg->nsects = bfd_h_get_32 (abfd, buf + 56);
2191 seg->flags = bfd_h_get_32 (abfd, buf + 60);
2192 }
2193 else
2194 {
2195 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
2196
2197 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2198 || bfd_bread ((PTR) buf, 48, abfd) != 48)
2199 return -1;
2200
2201 memcpy (seg->segname, buf, 16);
2202 seg->segname[16] = '\0';
2203
2204 seg->vmaddr = bfd_h_get_32 (abfd, buf + 16);
2205 seg->vmsize = bfd_h_get_32 (abfd, buf + 20);
2206 seg->fileoff = bfd_h_get_32 (abfd, buf + 24);
2207 seg->filesize = bfd_h_get_32 (abfd, buf + 28);
2208 seg->maxprot = bfd_h_get_32 (abfd, buf + 32);
2209 seg->initprot = bfd_h_get_32 (abfd, buf + 36);
2210 seg->nsects = bfd_h_get_32 (abfd, buf + 40);
2211 seg->flags = bfd_h_get_32 (abfd, buf + 44);
2212 }
2213
2214 if (seg->nsects != 0)
2215 {
2216 seg->sections = bfd_alloc (abfd, seg->nsects
2217 * sizeof (bfd_mach_o_section));
2218 if (seg->sections == NULL)
2219 return -1;
2220
2221 for (i = 0; i < seg->nsects; i++)
2222 {
2223 bfd_vma segoff;
2224 if (wide)
2225 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
2226 + (i * BFD_MACH_O_SECTION_64_SIZE);
2227 else
2228 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
2229 + (i * BFD_MACH_O_SECTION_SIZE);
2230
2231 if (bfd_mach_o_scan_read_section
2232 (abfd, &seg->sections[i], segoff, seg->initprot, wide) != 0)
2233 return -1;
2234 }
2235 }
2236
2237 return 0;
2238 }
2239
2240 static int
2241 bfd_mach_o_scan_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
2242 {
2243 return bfd_mach_o_scan_read_segment (abfd, command, 0);
2244 }
2245
2246 static int
2247 bfd_mach_o_scan_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
2248 {
2249 return bfd_mach_o_scan_read_segment (abfd, command, 1);
2250 }
2251
2252 static int
2253 bfd_mach_o_scan_read_command (bfd *abfd, bfd_mach_o_load_command *command)
2254 {
2255 unsigned char buf[8];
2256
2257 /* Read command type and length. */
2258 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
2259 || bfd_bread ((PTR) buf, 8, abfd) != 8)
2260 return -1;
2261
2262 command->type = bfd_h_get_32 (abfd, buf) & ~BFD_MACH_O_LC_REQ_DYLD;
2263 command->type_required = (bfd_h_get_32 (abfd, buf) & BFD_MACH_O_LC_REQ_DYLD
2264 ? TRUE : FALSE);
2265 command->len = bfd_h_get_32 (abfd, buf + 4);
2266
2267 switch (command->type)
2268 {
2269 case BFD_MACH_O_LC_SEGMENT:
2270 if (bfd_mach_o_scan_read_segment_32 (abfd, command) != 0)
2271 return -1;
2272 break;
2273 case BFD_MACH_O_LC_SEGMENT_64:
2274 if (bfd_mach_o_scan_read_segment_64 (abfd, command) != 0)
2275 return -1;
2276 break;
2277 case BFD_MACH_O_LC_SYMTAB:
2278 if (bfd_mach_o_scan_read_symtab (abfd, command) != 0)
2279 return -1;
2280 break;
2281 case BFD_MACH_O_LC_SYMSEG:
2282 break;
2283 case BFD_MACH_O_LC_THREAD:
2284 case BFD_MACH_O_LC_UNIXTHREAD:
2285 if (bfd_mach_o_scan_read_thread (abfd, command) != 0)
2286 return -1;
2287 break;
2288 case BFD_MACH_O_LC_LOAD_DYLINKER:
2289 case BFD_MACH_O_LC_ID_DYLINKER:
2290 if (bfd_mach_o_scan_read_dylinker (abfd, command) != 0)
2291 return -1;
2292 break;
2293 case BFD_MACH_O_LC_LOAD_DYLIB:
2294 case BFD_MACH_O_LC_ID_DYLIB:
2295 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
2296 case BFD_MACH_O_LC_REEXPORT_DYLIB:
2297 if (bfd_mach_o_scan_read_dylib (abfd, command) != 0)
2298 return -1;
2299 break;
2300 case BFD_MACH_O_LC_PREBOUND_DYLIB:
2301 if (bfd_mach_o_scan_read_prebound_dylib (abfd, command) != 0)
2302 return -1;
2303 break;
2304 case BFD_MACH_O_LC_LOADFVMLIB:
2305 case BFD_MACH_O_LC_IDFVMLIB:
2306 case BFD_MACH_O_LC_IDENT:
2307 case BFD_MACH_O_LC_FVMFILE:
2308 case BFD_MACH_O_LC_PREPAGE:
2309 case BFD_MACH_O_LC_ROUTINES:
2310 break;
2311 case BFD_MACH_O_LC_SUB_FRAMEWORK:
2312 case BFD_MACH_O_LC_SUB_UMBRELLA:
2313 case BFD_MACH_O_LC_SUB_LIBRARY:
2314 case BFD_MACH_O_LC_SUB_CLIENT:
2315 if (bfd_mach_o_scan_read_str (abfd, command) != 0)
2316 return -1;
2317 break;
2318 case BFD_MACH_O_LC_DYSYMTAB:
2319 if (bfd_mach_o_scan_read_dysymtab (abfd, command) != 0)
2320 return -1;
2321 break;
2322 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
2323 case BFD_MACH_O_LC_PREBIND_CKSUM:
2324 break;
2325 case BFD_MACH_O_LC_UUID:
2326 if (bfd_mach_o_scan_read_uuid (abfd, command) != 0)
2327 return -1;
2328 break;
2329 case BFD_MACH_O_LC_CODE_SIGNATURE:
2330 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
2331 if (bfd_mach_o_scan_read_linkedit (abfd, command) != 0)
2332 return -1;
2333 break;
2334 default:
2335 fprintf (stderr, "unable to read unknown load command 0x%lx\n",
2336 (unsigned long) command->type);
2337 break;
2338 }
2339
2340 return 0;
2341 }
2342
2343 static void
2344 bfd_mach_o_flatten_sections (bfd *abfd)
2345 {
2346 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2347 long csect = 0;
2348 unsigned long i, j;
2349
2350 /* Count total number of sections. */
2351 mdata->nsects = 0;
2352
2353 for (i = 0; i < mdata->header.ncmds; i++)
2354 {
2355 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
2356 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
2357 {
2358 bfd_mach_o_segment_command *seg;
2359
2360 seg = &mdata->commands[i].command.segment;
2361 mdata->nsects += seg->nsects;
2362 }
2363 }
2364
2365 /* Allocate sections array. */
2366 mdata->sections = bfd_alloc (abfd,
2367 mdata->nsects * sizeof (bfd_mach_o_section *));
2368
2369 /* Fill the array. */
2370 csect = 0;
2371
2372 for (i = 0; i < mdata->header.ncmds; i++)
2373 {
2374 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
2375 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
2376 {
2377 bfd_mach_o_segment_command *seg;
2378
2379 seg = &mdata->commands[i].command.segment;
2380 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
2381
2382 for (j = 0; j < seg->nsects; j++)
2383 mdata->sections[csect++] = &seg->sections[j];
2384 }
2385 }
2386 }
2387
2388 int
2389 bfd_mach_o_scan_start_address (bfd *abfd)
2390 {
2391 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2392 bfd_mach_o_thread_command *cmd = NULL;
2393 unsigned long i;
2394
2395 for (i = 0; i < mdata->header.ncmds; i++)
2396 {
2397 if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) ||
2398 (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD))
2399 {
2400 if (cmd == NULL)
2401 cmd = &mdata->commands[i].command.thread;
2402 else
2403 return 0;
2404 }
2405 }
2406
2407 if (cmd == NULL)
2408 return 0;
2409
2410 for (i = 0; i < cmd->nflavours; i++)
2411 {
2412 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
2413 && (cmd->flavours[i].flavour
2414 == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32))
2415 {
2416 unsigned char buf[4];
2417
2418 if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0
2419 || bfd_bread (buf, 4, abfd) != 4)
2420 return -1;
2421
2422 abfd->start_address = bfd_h_get_32 (abfd, buf);
2423 }
2424 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
2425 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
2426 {
2427 unsigned char buf[4];
2428
2429 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
2430 || bfd_bread (buf, 4, abfd) != 4)
2431 return -1;
2432
2433 abfd->start_address = bfd_h_get_32 (abfd, buf);
2434 }
2435 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
2436 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE_64))
2437 {
2438 unsigned char buf[8];
2439
2440 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
2441 || bfd_bread (buf, 8, abfd) != 8)
2442 return -1;
2443
2444 abfd->start_address = bfd_h_get_64 (abfd, buf);
2445 }
2446 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
2447 && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
2448 {
2449 unsigned char buf[8];
2450
2451 if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0
2452 || bfd_bread (buf, 8, abfd) != 8)
2453 return -1;
2454
2455 abfd->start_address = bfd_h_get_64 (abfd, buf);
2456 }
2457 }
2458
2459 return 0;
2460 }
2461
2462 int
2463 bfd_mach_o_scan (bfd *abfd,
2464 bfd_mach_o_header *header,
2465 bfd_mach_o_data_struct *mdata)
2466 {
2467 unsigned int i;
2468 enum bfd_architecture cputype;
2469 unsigned long cpusubtype;
2470 unsigned int hdrsize;
2471
2472 hdrsize = mach_o_wide_p (header) ?
2473 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2474
2475 mdata->header = *header;
2476
2477 abfd->flags = abfd->flags & BFD_IN_MEMORY;
2478 switch (header->filetype)
2479 {
2480 case BFD_MACH_O_MH_OBJECT:
2481 abfd->flags |= HAS_RELOC;
2482 break;
2483 case BFD_MACH_O_MH_EXECUTE:
2484 abfd->flags |= EXEC_P;
2485 break;
2486 case BFD_MACH_O_MH_DYLIB:
2487 case BFD_MACH_O_MH_BUNDLE:
2488 abfd->flags |= DYNAMIC;
2489 break;
2490 }
2491
2492 abfd->tdata.mach_o_data = mdata;
2493
2494 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
2495 &cputype, &cpusubtype);
2496 if (cputype == bfd_arch_unknown)
2497 {
2498 fprintf (stderr, "bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx\n",
2499 header->cputype, header->cpusubtype);
2500 return -1;
2501 }
2502
2503 bfd_set_arch_mach (abfd, cputype, cpusubtype);
2504
2505 if (header->ncmds != 0)
2506 {
2507 mdata->commands = bfd_alloc
2508 (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
2509 if (mdata->commands == NULL)
2510 return -1;
2511
2512 for (i = 0; i < header->ncmds; i++)
2513 {
2514 bfd_mach_o_load_command *cur = &mdata->commands[i];
2515
2516 if (i == 0)
2517 cur->offset = hdrsize;
2518 else
2519 {
2520 bfd_mach_o_load_command *prev = &mdata->commands[i - 1];
2521 cur->offset = prev->offset + prev->len;
2522 }
2523
2524 if (bfd_mach_o_scan_read_command (abfd, cur) < 0)
2525 return -1;
2526 }
2527 }
2528
2529 if (bfd_mach_o_scan_start_address (abfd) < 0)
2530 return -1;
2531
2532 bfd_mach_o_flatten_sections (abfd);
2533 return 0;
2534 }
2535
2536 bfd_boolean
2537 bfd_mach_o_mkobject_init (bfd *abfd)
2538 {
2539 bfd_mach_o_data_struct *mdata = NULL;
2540
2541 mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct));
2542 if (mdata == NULL)
2543 return FALSE;
2544 abfd->tdata.mach_o_data = mdata;
2545
2546 mdata->header.magic = 0;
2547 mdata->header.cputype = 0;
2548 mdata->header.cpusubtype = 0;
2549 mdata->header.filetype = 0;
2550 mdata->header.ncmds = 0;
2551 mdata->header.sizeofcmds = 0;
2552 mdata->header.flags = 0;
2553 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
2554 mdata->commands = NULL;
2555 mdata->nsects = 0;
2556 mdata->sections = NULL;
2557
2558 return TRUE;
2559 }
2560
2561 const bfd_target *
2562 bfd_mach_o_header_p (bfd *abfd,
2563 bfd_mach_o_filetype filetype,
2564 bfd_mach_o_cpu_type cputype)
2565 {
2566 struct bfd_preserve preserve;
2567 bfd_mach_o_header header;
2568
2569 preserve.marker = NULL;
2570 if (!bfd_mach_o_read_header (abfd, &header))
2571 goto wrong;
2572
2573 if (! (header.byteorder == BFD_ENDIAN_BIG
2574 || header.byteorder == BFD_ENDIAN_LITTLE))
2575 {
2576 fprintf (stderr, "unknown header byte-order value 0x%lx\n",
2577 (unsigned long) header.byteorder);
2578 goto wrong;
2579 }
2580
2581 if (! ((header.byteorder == BFD_ENDIAN_BIG
2582 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
2583 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
2584 || (header.byteorder == BFD_ENDIAN_LITTLE
2585 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
2586 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
2587 goto wrong;
2588
2589 /* Check cputype and filetype.
2590 In case of wildcard, do not accept magics that are handled by existing
2591 targets. */
2592 if (cputype)
2593 {
2594 if (header.cputype != cputype)
2595 goto wrong;
2596 }
2597 else
2598 {
2599 switch (header.cputype)
2600 {
2601 case BFD_MACH_O_CPU_TYPE_I386:
2602 /* Handled by mach-o-i386 */
2603 goto wrong;
2604 default:
2605 break;
2606 }
2607 }
2608 if (filetype)
2609 {
2610 if (header.filetype != filetype)
2611 goto wrong;
2612 }
2613 else
2614 {
2615 switch (header.filetype)
2616 {
2617 case BFD_MACH_O_MH_CORE:
2618 /* Handled by core_p */
2619 goto wrong;
2620 default:
2621 break;
2622 }
2623 }
2624
2625 preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
2626 if (preserve.marker == NULL
2627 || !bfd_preserve_save (abfd, &preserve))
2628 goto fail;
2629
2630 if (bfd_mach_o_scan (abfd, &header,
2631 (bfd_mach_o_data_struct *) preserve.marker) != 0)
2632 goto wrong;
2633
2634 bfd_preserve_finish (abfd, &preserve);
2635 return abfd->xvec;
2636
2637 wrong:
2638 bfd_set_error (bfd_error_wrong_format);
2639
2640 fail:
2641 if (preserve.marker != NULL)
2642 bfd_preserve_restore (abfd, &preserve);
2643 return NULL;
2644 }
2645
2646 static const bfd_target *
2647 bfd_mach_o_gen_object_p (bfd *abfd)
2648 {
2649 return bfd_mach_o_header_p (abfd, 0, 0);
2650 }
2651
2652 static const bfd_target *
2653 bfd_mach_o_gen_core_p (bfd *abfd)
2654 {
2655 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
2656 }
2657
2658 typedef struct mach_o_fat_archentry
2659 {
2660 unsigned long cputype;
2661 unsigned long cpusubtype;
2662 unsigned long offset;
2663 unsigned long size;
2664 unsigned long align;
2665 } mach_o_fat_archentry;
2666
2667 typedef struct mach_o_fat_data_struct
2668 {
2669 unsigned long magic;
2670 unsigned long nfat_arch;
2671 mach_o_fat_archentry *archentries;
2672 } mach_o_fat_data_struct;
2673
2674 const bfd_target *
2675 bfd_mach_o_archive_p (bfd *abfd)
2676 {
2677 mach_o_fat_data_struct *adata = NULL;
2678 unsigned char buf[20];
2679 unsigned long i;
2680
2681 if (bfd_seek (abfd, 0, SEEK_SET) != 0
2682 || bfd_bread ((PTR) buf, 8, abfd) != 8)
2683 goto error;
2684
2685 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
2686 if (adata == NULL)
2687 goto error;
2688
2689 adata->magic = bfd_getb32 (buf);
2690 adata->nfat_arch = bfd_getb32 (buf + 4);
2691 if (adata->magic != 0xcafebabe)
2692 goto error;
2693 /* Avoid matching Java bytecode files, which have the same magic number.
2694 In the Java bytecode file format this field contains the JVM version,
2695 which starts at 43.0. */
2696 if (adata->nfat_arch > 30)
2697 goto error;
2698
2699 adata->archentries =
2700 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
2701 if (adata->archentries == NULL)
2702 goto error;
2703
2704 for (i = 0; i < adata->nfat_arch; i++)
2705 {
2706 if (bfd_seek (abfd, 8 + 20 * i, SEEK_SET) != 0
2707 || bfd_bread ((PTR) buf, 20, abfd) != 20)
2708 goto error;
2709 adata->archentries[i].cputype = bfd_getb32 (buf);
2710 adata->archentries[i].cpusubtype = bfd_getb32 (buf + 4);
2711 adata->archentries[i].offset = bfd_getb32 (buf + 8);
2712 adata->archentries[i].size = bfd_getb32 (buf + 12);
2713 adata->archentries[i].align = bfd_getb32 (buf + 16);
2714 }
2715
2716 abfd->tdata.mach_o_fat_data = adata;
2717 return abfd->xvec;
2718
2719 error:
2720 if (adata != NULL)
2721 bfd_release (abfd, adata);
2722 bfd_set_error (bfd_error_wrong_format);
2723 return NULL;
2724 }
2725
2726 bfd *
2727 bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
2728 {
2729 mach_o_fat_data_struct *adata;
2730 mach_o_fat_archentry *entry = NULL;
2731 unsigned long i;
2732 bfd *nbfd;
2733 enum bfd_architecture arch_type;
2734 unsigned long arch_subtype;
2735
2736 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
2737 BFD_ASSERT (adata != NULL);
2738
2739 /* Find index of previous entry. */
2740 if (prev == NULL)
2741 i = 0; /* Start at first one. */
2742 else
2743 {
2744 for (i = 0; i < adata->nfat_arch; i++)
2745 {
2746 if (adata->archentries[i].offset == prev->origin)
2747 break;
2748 }
2749
2750 if (i == adata->nfat_arch)
2751 {
2752 /* Not found. */
2753 bfd_set_error (bfd_error_bad_value);
2754 return NULL;
2755 }
2756 i++; /* Get next entry. */
2757 }
2758
2759 if (i >= adata->nfat_arch)
2760 {
2761 bfd_set_error (bfd_error_no_more_archived_files);
2762 return NULL;
2763 }
2764
2765 entry = &adata->archentries[i];
2766 nbfd = _bfd_new_bfd_contained_in (archive);
2767 if (nbfd == NULL)
2768 return NULL;
2769
2770 nbfd->origin = entry->offset;
2771
2772 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
2773 &arch_type, &arch_subtype);
2774 /* Create the member filename.
2775 Use FILENAME:ARCH_NAME. */
2776 {
2777 char *s = NULL;
2778 const char *arch_name;
2779 size_t arch_file_len = strlen (bfd_get_filename (archive));
2780
2781 arch_name = bfd_printable_arch_mach (arch_type, arch_subtype);
2782 s = bfd_malloc (arch_file_len + 1 + strlen (arch_name) + 1);
2783 if (s == NULL)
2784 return NULL;
2785 memcpy (s, bfd_get_filename (archive), arch_file_len);
2786 s[arch_file_len] = ':';
2787 strcpy (s + arch_file_len + 1, arch_name);
2788 nbfd->filename = s;
2789 }
2790 nbfd->iostream = NULL;
2791 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
2792
2793 return nbfd;
2794 }
2795
2796 /* If ABFD format is FORMAT and architecture is ARCH, return it.
2797 If ABFD is a fat image containing a member that corresponds to FORMAT
2798 and ARCH, returns it.
2799 In other case, returns NULL.
2800 This function allows transparent uses of fat images. */
2801 bfd *
2802 bfd_mach_o_fat_extract (bfd *abfd,
2803 bfd_format format,
2804 const bfd_arch_info_type *arch)
2805 {
2806 bfd *res;
2807 mach_o_fat_data_struct *adata;
2808 unsigned int i;
2809
2810 if (bfd_check_format (abfd, format))
2811 {
2812 if (bfd_get_arch_info (abfd) == arch)
2813 return abfd;
2814 return NULL;
2815 }
2816 if (!bfd_check_format (abfd, bfd_archive)
2817 || abfd->xvec != &mach_o_fat_vec)
2818 return NULL;
2819
2820 /* This is a Mach-O fat image. */
2821 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
2822 BFD_ASSERT (adata != NULL);
2823
2824 for (i = 0; i < adata->nfat_arch; i++)
2825 {
2826 struct mach_o_fat_archentry *e = &adata->archentries[i];
2827 enum bfd_architecture cpu_type;
2828 unsigned long cpu_subtype;
2829
2830 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
2831 &cpu_type, &cpu_subtype);
2832 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
2833 continue;
2834
2835 /* The architecture is found. */
2836 res = _bfd_new_bfd_contained_in (abfd);
2837 if (res == NULL)
2838 return NULL;
2839
2840 res->origin = e->offset;
2841
2842 res->filename = strdup (abfd->filename);
2843 res->iostream = NULL;
2844
2845 if (bfd_check_format (res, format))
2846 {
2847 BFD_ASSERT (bfd_get_arch_info (res) == arch);
2848 return res;
2849 }
2850 bfd_close (res);
2851 return NULL;
2852 }
2853
2854 return NULL;
2855 }
2856
2857 int
2858 bfd_mach_o_lookup_section (bfd *abfd,
2859 asection *section,
2860 bfd_mach_o_load_command **mcommand,
2861 bfd_mach_o_section **msection)
2862 {
2863 struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd);
2864 unsigned int i, j, num;
2865
2866 bfd_mach_o_load_command *ncmd = NULL;
2867 bfd_mach_o_section *nsect = NULL;
2868
2869 BFD_ASSERT (mcommand != NULL);
2870 BFD_ASSERT (msection != NULL);
2871
2872 num = 0;
2873 for (i = 0; i < md->header.ncmds; i++)
2874 {
2875 struct bfd_mach_o_load_command *cmd = &md->commands[i];
2876 struct bfd_mach_o_segment_command *seg = NULL;
2877
2878 if (cmd->type != BFD_MACH_O_LC_SEGMENT
2879 || cmd->type != BFD_MACH_O_LC_SEGMENT_64)
2880 continue;
2881 seg = &cmd->command.segment;
2882
2883 if (seg->segment == section)
2884 {
2885 if (num == 0)
2886 ncmd = cmd;
2887 num++;
2888 }
2889
2890 for (j = 0; j < seg->nsects; j++)
2891 {
2892 struct bfd_mach_o_section *sect = &seg->sections[j];
2893
2894 if (sect->bfdsection == section)
2895 {
2896 if (num == 0)
2897 nsect = sect;
2898 num++;
2899 }
2900 }
2901 }
2902
2903 *mcommand = ncmd;
2904 *msection = nsect;
2905 return num;
2906 }
2907
2908 int
2909 bfd_mach_o_lookup_command (bfd *abfd,
2910 bfd_mach_o_load_command_type type,
2911 bfd_mach_o_load_command **mcommand)
2912 {
2913 struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd);
2914 bfd_mach_o_load_command *ncmd = NULL;
2915 unsigned int i, num;
2916
2917 BFD_ASSERT (md != NULL);
2918 BFD_ASSERT (mcommand != NULL);
2919
2920 num = 0;
2921 for (i = 0; i < md->header.ncmds; i++)
2922 {
2923 struct bfd_mach_o_load_command *cmd = &md->commands[i];
2924
2925 if (cmd->type != type)
2926 continue;
2927
2928 if (num == 0)
2929 ncmd = cmd;
2930 num++;
2931 }
2932
2933 *mcommand = ncmd;
2934 return num;
2935 }
2936
2937 unsigned long
2938 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
2939 {
2940 switch (type)
2941 {
2942 case BFD_MACH_O_CPU_TYPE_MC680x0:
2943 return 0x04000000;
2944 case BFD_MACH_O_CPU_TYPE_MC88000:
2945 return 0xffffe000;
2946 case BFD_MACH_O_CPU_TYPE_POWERPC:
2947 return 0xc0000000;
2948 case BFD_MACH_O_CPU_TYPE_I386:
2949 return 0xc0000000;
2950 case BFD_MACH_O_CPU_TYPE_SPARC:
2951 return 0xf0000000;
2952 case BFD_MACH_O_CPU_TYPE_I860:
2953 return 0;
2954 case BFD_MACH_O_CPU_TYPE_HPPA:
2955 return 0xc0000000 - 0x04000000;
2956 default:
2957 return 0;
2958 }
2959 }
2960
2961 typedef struct bfd_mach_o_xlat_name
2962 {
2963 const char *name;
2964 unsigned long val;
2965 }
2966 bfd_mach_o_xlat_name;
2967
2968 static void
2969 bfd_mach_o_print_flags (const bfd_mach_o_xlat_name *table,
2970 unsigned long val,
2971 FILE *file)
2972 {
2973 int first = 1;
2974
2975 for (; table->name; table++)
2976 {
2977 if (table->val & val)
2978 {
2979 if (!first)
2980 fprintf (file, "+");
2981 fprintf (file, "%s", table->name);
2982 val &= ~table->val;
2983 first = 0;
2984 }
2985 }
2986 if (val)
2987 {
2988 if (!first)
2989 fprintf (file, "+");
2990 fprintf (file, "0x%lx", val);
2991 return;
2992 }
2993 if (first)
2994 fprintf (file, "-");
2995 }
2996
2997 static const char *
2998 bfd_mach_o_get_name (const bfd_mach_o_xlat_name *table, unsigned long val)
2999 {
3000 for (; table->name; table++)
3001 if (table->val == val)
3002 return table->name;
3003 return "*UNKNOWN*";
3004 }
3005
3006 static bfd_mach_o_xlat_name bfd_mach_o_cpu_name[] =
3007 {
3008 { "vax", BFD_MACH_O_CPU_TYPE_VAX},
3009 { "mc680x0", BFD_MACH_O_CPU_TYPE_MC680x0},
3010 { "i386", BFD_MACH_O_CPU_TYPE_I386},
3011 { "mips", BFD_MACH_O_CPU_TYPE_MIPS},
3012 { "mc98000", BFD_MACH_O_CPU_TYPE_MC98000},
3013 { "hppa", BFD_MACH_O_CPU_TYPE_HPPA},
3014 { "arm", BFD_MACH_O_CPU_TYPE_ARM},
3015 { "mc88000", BFD_MACH_O_CPU_TYPE_MC88000},
3016 { "sparc", BFD_MACH_O_CPU_TYPE_SPARC},
3017 { "i860", BFD_MACH_O_CPU_TYPE_I860},
3018 { "alpha", BFD_MACH_O_CPU_TYPE_ALPHA},
3019 { "powerpc", BFD_MACH_O_CPU_TYPE_POWERPC},
3020 { "powerpc_64", BFD_MACH_O_CPU_TYPE_POWERPC_64},
3021 { "x86_64", BFD_MACH_O_CPU_TYPE_X86_64},
3022 { NULL, 0}
3023 };
3024
3025 static bfd_mach_o_xlat_name bfd_mach_o_filetype_name[] =
3026 {
3027 { "object", BFD_MACH_O_MH_OBJECT},
3028 { "execute", BFD_MACH_O_MH_EXECUTE},
3029 { "fvmlib", BFD_MACH_O_MH_FVMLIB},
3030 { "core", BFD_MACH_O_MH_CORE},
3031 { "preload", BFD_MACH_O_MH_PRELOAD},
3032 { "dylib", BFD_MACH_O_MH_DYLIB},
3033 { "dylinker", BFD_MACH_O_MH_DYLINKER},
3034 { "bundle", BFD_MACH_O_MH_BUNDLE},
3035 { NULL, 0}
3036 };
3037
3038 static bfd_mach_o_xlat_name bfd_mach_o_header_flags_name[] =
3039 {
3040 { "noundefs", BFD_MACH_O_MH_NOUNDEFS },
3041 { "incrlink", BFD_MACH_O_MH_INCRLINK },
3042 { "dyldlink", BFD_MACH_O_MH_DYLDLINK },
3043 { "bindatload", BFD_MACH_O_MH_BINDATLOAD },
3044 { "prebound", BFD_MACH_O_MH_PREBOUND },
3045 { "split_segs", BFD_MACH_O_MH_SPLIT_SEGS },
3046 { "lazy_init", BFD_MACH_O_MH_LAZY_INIT },
3047 { "twolevel", BFD_MACH_O_MH_TWOLEVEL },
3048 { "force_flat", BFD_MACH_O_MH_FORCE_FLAT },
3049 { "nomultidefs", BFD_MACH_O_MH_NOMULTIDEFS },
3050 { "nofixprebinding", BFD_MACH_O_MH_NOFIXPREBINDING },
3051 { "prebindable", BFD_MACH_O_MH_PREBINDABLE },
3052 { "allmodsbound", BFD_MACH_O_MH_ALLMODSBOUND },
3053 { "subsections_via_symbols", BFD_MACH_O_MH_SUBSECTIONS_VIA_SYMBOLS },
3054 { "canonical", BFD_MACH_O_MH_CANONICAL },
3055 { "weak_defines", BFD_MACH_O_MH_WEAK_DEFINES },
3056 { "binds_to_weak", BFD_MACH_O_MH_BINDS_TO_WEAK },
3057 { "allow_stack_execution", BFD_MACH_O_MH_ALLOW_STACK_EXECUTION },
3058 { "root_safe", BFD_MACH_O_MH_ROOT_SAFE },
3059 { "setuid_safe", BFD_MACH_O_MH_SETUID_SAFE },
3060 { "no_reexported_dylibs", BFD_MACH_O_MH_NO_REEXPORTED_DYLIBS },
3061 { "pie", BFD_MACH_O_MH_PIE },
3062 { NULL, 0}
3063 };
3064
3065 static bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
3066 {
3067 { "regular", BFD_MACH_O_S_REGULAR},
3068 { "zerofill", BFD_MACH_O_S_ZEROFILL},
3069 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
3070 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
3071 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
3072 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
3073 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
3074 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
3075 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
3076 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
3077 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
3078 { "coalesced", BFD_MACH_O_S_COALESCED},
3079 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
3080 { "interposing", BFD_MACH_O_S_INTERPOSING},
3081 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
3082 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
3083 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
3084 { NULL, 0}
3085 };
3086
3087 static bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
3088 {
3089 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
3090 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
3091 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
3092 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
3093 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
3094 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
3095 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
3096 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
3097 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
3098 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
3099 { NULL, 0}
3100 };
3101
3102 static bfd_mach_o_xlat_name bfd_mach_o_load_command_name[] =
3103 {
3104 { "segment", BFD_MACH_O_LC_SEGMENT},
3105 { "symtab", BFD_MACH_O_LC_SYMTAB},
3106 { "symseg", BFD_MACH_O_LC_SYMSEG},
3107 { "thread", BFD_MACH_O_LC_THREAD},
3108 { "unixthread", BFD_MACH_O_LC_UNIXTHREAD},
3109 { "loadfvmlib", BFD_MACH_O_LC_LOADFVMLIB},
3110 { "idfvmlib", BFD_MACH_O_LC_IDFVMLIB},
3111 { "ident", BFD_MACH_O_LC_IDENT},
3112 { "fvmfile", BFD_MACH_O_LC_FVMFILE},
3113 { "prepage", BFD_MACH_O_LC_PREPAGE},
3114 { "dysymtab", BFD_MACH_O_LC_DYSYMTAB},
3115 { "load_dylib", BFD_MACH_O_LC_LOAD_DYLIB},
3116 { "id_dylib", BFD_MACH_O_LC_ID_DYLIB},
3117 { "load_dylinker", BFD_MACH_O_LC_LOAD_DYLINKER},
3118 { "id_dylinker", BFD_MACH_O_LC_ID_DYLINKER},
3119 { "prebound_dylib", BFD_MACH_O_LC_PREBOUND_DYLIB},
3120 { "routines", BFD_MACH_O_LC_ROUTINES},
3121 { "sub_framework", BFD_MACH_O_LC_SUB_FRAMEWORK},
3122 { "sub_umbrella", BFD_MACH_O_LC_SUB_UMBRELLA},
3123 { "sub_client", BFD_MACH_O_LC_SUB_CLIENT},
3124 { "sub_library", BFD_MACH_O_LC_SUB_LIBRARY},
3125 { "twolevel_hints", BFD_MACH_O_LC_TWOLEVEL_HINTS},
3126 { "prebind_cksum", BFD_MACH_O_LC_PREBIND_CKSUM},
3127 { "load_weak_dylib", BFD_MACH_O_LC_LOAD_WEAK_DYLIB},
3128 { "segment_64", BFD_MACH_O_LC_SEGMENT_64},
3129 { "routines_64", BFD_MACH_O_LC_ROUTINES_64},
3130 { "uuid", BFD_MACH_O_LC_UUID},
3131 { "rpath", BFD_MACH_O_LC_RPATH},
3132 { "code_signature", BFD_MACH_O_LC_CODE_SIGNATURE},
3133 { "segment_split_info", BFD_MACH_O_LC_SEGMENT_SPLIT_INFO},
3134 { "reexport_dylib", BFD_MACH_O_LC_REEXPORT_DYLIB},
3135 { "lazy_load_dylib", BFD_MACH_O_LC_LAZY_LOAD_DYLIB},
3136 { "encryption_info", BFD_MACH_O_LC_ENCRYPTION_INFO},
3137 { NULL, 0}
3138 };
3139
3140 static void
3141 bfd_mach_o_print_private_header (bfd *abfd, FILE *file)
3142 {
3143 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3144 bfd_mach_o_header *h = &mdata->header;
3145
3146 fprintf (file, _("Mach-O header:\n"));
3147 fprintf (file, _(" magic : %08lx\n"), h->magic);
3148 fprintf (file, _(" cputype : %08lx (%s)\n"), h->cputype,
3149 bfd_mach_o_get_name (bfd_mach_o_cpu_name, h->cputype));
3150 fprintf (file, _(" cpusubtype: %08lx\n"), h->cpusubtype);
3151 fprintf (file, _(" filetype : %08lx (%s)\n"),
3152 h->filetype,
3153 bfd_mach_o_get_name (bfd_mach_o_filetype_name, h->filetype));
3154 fprintf (file, _(" ncmds : %08lx\n"), h->ncmds);
3155 fprintf (file, _(" sizeofcmds: %08lx\n"), h->sizeofcmds);
3156 fprintf (file, _(" flags : %08lx ("), h->flags);
3157 bfd_mach_o_print_flags (bfd_mach_o_header_flags_name, h->flags, file);
3158 fprintf (file, _(")\n"));
3159 fprintf (file, _(" reserved : %08x\n"), h->reserved);
3160 }
3161
3162 static void
3163 bfd_mach_o_print_section_map (bfd *abfd, FILE *file)
3164 {
3165 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3166 unsigned int i, j;
3167 unsigned int sec_nbr = 0;
3168
3169 fprintf (file, _("Segments and Sections:\n"));
3170 fprintf (file, _(" #: Segment name Section name Address\n"));
3171
3172 for (i = 0; i < mdata->header.ncmds; i++)
3173 {
3174 bfd_mach_o_segment_command *seg;
3175
3176 if (mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT
3177 && mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT_64)
3178 continue;
3179
3180 seg = &mdata->commands[i].command.segment;
3181
3182 fprintf (file, "[Segment %-16s ", seg->segname);
3183 fprintf_vma (file, seg->vmaddr);
3184 fprintf (file, "-");
3185 fprintf_vma (file, seg->vmaddr + seg->vmsize - 1);
3186 fputc (' ', file);
3187 fputc (seg->initprot & BFD_MACH_O_PROT_READ ? 'r' : '-', file);
3188 fputc (seg->initprot & BFD_MACH_O_PROT_WRITE ? 'w' : '-', file);
3189 fputc (seg->initprot & BFD_MACH_O_PROT_EXECUTE ? 'x' : '-', file);
3190 fprintf (file, "]\n");
3191 for (j = 0; j < seg->nsects; j++)
3192 {
3193 bfd_mach_o_section *sec = &seg->sections[j];
3194 fprintf (file, "%02u: %-16s %-16s ", ++sec_nbr,
3195 sec->segname, sec->sectname);
3196 fprintf_vma (file, sec->addr);
3197 fprintf (file, " ");
3198 fprintf_vma (file, sec->size);
3199 fprintf (file, " %08lx\n", sec->flags);
3200 }
3201 }
3202 }
3203
3204 /* Return the number of indirect symbols for a section.
3205 Must be called only for symbol pointer section and symbol stubs
3206 sections. */
3207
3208 static unsigned int
3209 bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec)
3210 {
3211 unsigned int elsz;
3212
3213 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3214 {
3215 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
3216 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
3217 elsz = bfd_mach_o_wide_p (abfd) ? 8 : 4;
3218 return sec->size / elsz;
3219 case BFD_MACH_O_S_SYMBOL_STUBS:
3220 elsz = sec->reserved2;
3221 if (elsz)
3222 return sec->size / elsz;
3223 else
3224 return 0;
3225 default:
3226 BFD_FAIL ();
3227 return 0;
3228 }
3229 }
3230
3231 static void
3232 bfd_mach_o_print_section (bfd *abfd ATTRIBUTE_UNUSED,
3233 bfd_mach_o_section *sec, FILE *file)
3234 {
3235 fprintf (file, " Section: sectname: %-16s segname: %-16s\n",
3236 sec->sectname, sec->segname);
3237 fprintf (file, " addr: ");
3238 fprintf_vma (file, sec->addr);
3239 fprintf (file, " size: ");
3240 fprintf_vma (file, sec->size);
3241 fprintf (file, " offset: ");
3242 fprintf_vma (file, sec->offset);
3243 fprintf (file, "\n");
3244 fprintf (file, " align: %ld", sec->align);
3245 fprintf (file, " nreloc: %lu reloff: ", sec->nreloc);
3246 fprintf_vma (file, sec->reloff);
3247 fprintf (file, "\n");
3248 fprintf (file, " flags: %08lx (type: %s", sec->flags,
3249 bfd_mach_o_get_name (bfd_mach_o_section_type_name,
3250 sec->flags & BFD_MACH_O_SECTION_TYPE_MASK));
3251 fprintf (file, " attr: ");
3252 bfd_mach_o_print_flags (bfd_mach_o_section_attribute_name,
3253 sec->flags & BFD_MACH_O_SECTION_ATTRIBUTES_MASK,
3254 file);
3255 fprintf (file, ")\n");
3256 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3257 {
3258 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
3259 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
3260 case BFD_MACH_O_S_SYMBOL_STUBS:
3261 fprintf (file, " first indirect sym: %lu", sec->reserved1);
3262 fprintf (file, " (%u entries)",
3263 bfd_mach_o_section_get_nbr_indirect (abfd, sec));
3264 break;
3265 default:
3266 fprintf (file, " reserved1: 0x%lx", sec->reserved1);
3267 break;
3268 }
3269 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3270 {
3271 case BFD_MACH_O_S_SYMBOL_STUBS:
3272 fprintf (file, " stub size: %lu", sec->reserved2);
3273 break;
3274 default:
3275 fprintf (file, " reserved2: 0x%lx", sec->reserved2);
3276 break;
3277 }
3278 fprintf (file, " reserved3: 0x%lx\n", sec->reserved3);
3279 }
3280
3281 static void
3282 bfd_mach_o_print_segment (bfd *abfd ATTRIBUTE_UNUSED,
3283 bfd_mach_o_load_command *cmd, FILE *file)
3284 {
3285 bfd_mach_o_segment_command *seg = &cmd->command.segment;
3286 unsigned int i;
3287
3288 fprintf (file, " name: %s\n", seg->segname);
3289 fprintf (file, " vmaddr: ");
3290 fprintf_vma (file, seg->vmaddr);
3291 fprintf (file, " vmsize: ");
3292 fprintf_vma (file, seg->vmsize);
3293 fprintf (file, "\n");
3294 fprintf (file, " fileoff: ");
3295 fprintf_vma (file, seg->fileoff);
3296 fprintf (file, " filesize: ");
3297 fprintf_vma (file, (bfd_vma)seg->filesize);
3298 fprintf (file, " endoff: ");
3299 fprintf_vma (file, (bfd_vma)(seg->fileoff + seg->filesize));
3300 fprintf (file, "\n");
3301 fprintf (file, " nsects: %lu ", seg->nsects);
3302 fprintf (file, " flags: %lx\n", seg->flags);
3303 for (i = 0; i < seg->nsects; i++)
3304 bfd_mach_o_print_section (abfd, &seg->sections[i], file);
3305 }
3306
3307 static void
3308 bfd_mach_o_print_dysymtab (bfd *abfd ATTRIBUTE_UNUSED,
3309 bfd_mach_o_load_command *cmd, FILE *file)
3310 {
3311 bfd_mach_o_dysymtab_command *dysymtab = &cmd->command.dysymtab;
3312 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3313 unsigned int i;
3314
3315 fprintf (file, " local symbols: idx: %10lu num: %lu\n",
3316 dysymtab->ilocalsym, dysymtab->nlocalsym);
3317 fprintf (file, " external symbols: idx: %10lu num: %lu\n",
3318 dysymtab->iextdefsym, dysymtab->nextdefsym);
3319 fprintf (file, " undefined symbols: idx: %10lu num: %lu\n",
3320 dysymtab->iundefsym, dysymtab->nundefsym);
3321 fprintf (file, " table of content: off: 0x%08lx num: %-8lu",
3322 dysymtab->tocoff, dysymtab->ntoc);
3323 fprintf (file, " (endoff: 0x%08lx)\n",
3324 dysymtab->tocoff
3325 + dysymtab->ntoc * BFD_MACH_O_TABLE_OF_CONTENT_SIZE);
3326 fprintf (file, " module table: off: 0x%08lx num: %-8lu",
3327 dysymtab->modtaboff, dysymtab->nmodtab);
3328 fprintf (file, " (endoff: 0x%08lx)\n",
3329 dysymtab->modtaboff + dysymtab->nmodtab
3330 * (mach_o_wide_p (&mdata->header) ?
3331 BFD_MACH_O_DYLIB_MODULE_64_SIZE : BFD_MACH_O_DYLIB_MODULE_SIZE));
3332 fprintf (file, " external reference table: off: 0x%08lx num: %-8lu",
3333 dysymtab->extrefsymoff, dysymtab->nextrefsyms);
3334 fprintf (file, " (endoff: 0x%08lx)\n",
3335 dysymtab->extrefsymoff
3336 + dysymtab->nextrefsyms * BFD_MACH_O_REFERENCE_SIZE);
3337 fprintf (file, " indirect symbol table: off: 0x%08lx num: %-8lu",
3338 dysymtab->indirectsymoff, dysymtab->nindirectsyms);
3339 fprintf (file, " (endoff: 0x%08lx)\n",
3340 dysymtab->indirectsymoff
3341 + dysymtab->nindirectsyms * BFD_MACH_O_INDIRECT_SYMBOL_SIZE);
3342 fprintf (file, " external relocation table: off: 0x%08lx num: %-8lu",
3343 dysymtab->extreloff, dysymtab->nextrel);
3344 fprintf (file, " (endoff: 0x%08lx)\n",
3345 dysymtab->extreloff + dysymtab->nextrel * BFD_MACH_O_RELENT_SIZE);
3346 fprintf (file, " local relocation table: off: 0x%08lx num: %-8lu",
3347 dysymtab->locreloff, dysymtab->nlocrel);
3348 fprintf (file, " (endoff: 0x%08lx)\n",
3349 dysymtab->locreloff + dysymtab->nlocrel * BFD_MACH_O_RELENT_SIZE);
3350
3351 if (dysymtab->ntoc > 0
3352 || dysymtab->nindirectsyms > 0
3353 || dysymtab->nextrefsyms > 0)
3354 {
3355 /* Try to read the symbols to display the toc or indirect symbols. */
3356 bfd_mach_o_scan_read_symtab_symbols (abfd);
3357 }
3358 else if (dysymtab->nmodtab > 0)
3359 {
3360 /* Try to read the strtab to display modules name. */
3361 bfd_mach_o_scan_read_symtab_strtab (abfd);
3362 }
3363
3364 for (i = 0; i < dysymtab->nmodtab; i++)
3365 {
3366 bfd_mach_o_dylib_module *module = &dysymtab->dylib_module[i];
3367 fprintf (file, " module %u:\n", i);
3368 fprintf (file, " name: %lu", module->module_name_idx);
3369 if (mdata->symtab && mdata->symtab->strtab)
3370 fprintf (file, ": %s",
3371 mdata->symtab->strtab + module->module_name_idx);
3372 fprintf (file, "\n");
3373 fprintf (file, " extdefsym: idx: %8lu num: %lu\n",
3374 module->iextdefsym, module->nextdefsym);
3375 fprintf (file, " refsym: idx: %8lu num: %lu\n",
3376 module->irefsym, module->nrefsym);
3377 fprintf (file, " localsym: idx: %8lu num: %lu\n",
3378 module->ilocalsym, module->nlocalsym);
3379 fprintf (file, " extrel: idx: %8lu num: %lu\n",
3380 module->iextrel, module->nextrel);
3381 fprintf (file, " init: idx: %8u num: %u\n",
3382 module->iinit, module->ninit);
3383 fprintf (file, " term: idx: %8u num: %u\n",
3384 module->iterm, module->nterm);
3385 fprintf (file, " objc_module_info: addr: ");
3386 fprintf_vma (file, module->objc_module_info_addr);
3387 fprintf (file, " size: %lu\n", module->objc_module_info_size);
3388 }
3389
3390 if (dysymtab->ntoc > 0)
3391 {
3392 bfd_mach_o_symtab_command *symtab = mdata->symtab;
3393
3394 fprintf (file, " table of content: (symbol/module)\n");
3395 for (i = 0; i < dysymtab->ntoc; i++)
3396 {
3397 bfd_mach_o_dylib_table_of_content *toc = &dysymtab->dylib_toc[i];
3398
3399 fprintf (file, " %4u: ", i);
3400 if (symtab && symtab->symbols && toc->symbol_index < symtab->nsyms)
3401 {
3402 const char *name = symtab->symbols[toc->symbol_index].symbol.name;
3403 fprintf (file, "%s (%lu)", name ? name : "*invalid*",
3404 toc->symbol_index);
3405 }
3406 else
3407 fprintf (file, "%lu", toc->symbol_index);
3408
3409 fprintf (file, " / ");
3410 if (symtab && symtab->strtab
3411 && toc->module_index < dysymtab->nmodtab)
3412 {
3413 bfd_mach_o_dylib_module *mod;
3414 mod = &dysymtab->dylib_module[toc->module_index];
3415 fprintf (file, "%s (%lu)",
3416 symtab->strtab + mod->module_name_idx,
3417 toc->module_index);
3418 }
3419 else
3420 fprintf (file, "%lu", toc->module_index);
3421
3422 fprintf (file, "\n");
3423 }
3424 }
3425
3426 if (dysymtab->nindirectsyms != 0)
3427 {
3428 fprintf (file, " indirect symbols:\n");
3429
3430 for (i = 0; i < mdata->nsects; i++)
3431 {
3432 bfd_mach_o_section *sec = mdata->sections[i];
3433 unsigned int j, first, last;
3434 bfd_mach_o_symtab_command *symtab = mdata->symtab;
3435
3436 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3437 {
3438 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
3439 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
3440 case BFD_MACH_O_S_SYMBOL_STUBS:
3441 first = sec->reserved1;
3442 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
3443 fprintf (file, " for section %s.%s:\n",
3444 sec->segname, sec->sectname);
3445 for (j = first; j < last; j++)
3446 {
3447 unsigned int isym = dysymtab->indirect_syms[j];
3448
3449 fprintf (file, " %5u: 0x%08x (%u)", j, isym, isym);
3450 if (isym & BFD_MACH_O_INDIRECT_SYMBOL_LOCAL)
3451 fprintf (file, " LOCAL");
3452 if (isym & BFD_MACH_O_INDIRECT_SYMBOL_ABS)
3453 fprintf (file, " ABSOLUTE");
3454 if (symtab && symtab->symbols
3455 && isym < symtab->nsyms
3456 && symtab->symbols[isym].symbol.name)
3457 fprintf (file, " %s", symtab->symbols[isym].symbol.name);
3458 fprintf (file, "\n");
3459 }
3460 break;
3461 default:
3462 break;
3463 }
3464 }
3465 }
3466 if (dysymtab->nextrefsyms > 0)
3467 {
3468 bfd_mach_o_symtab_command *symtab = mdata->symtab;
3469
3470 fprintf (file, " external reference table: (symbol flags)\n");
3471 for (i = 0; i < dysymtab->nextrefsyms; i++)
3472 {
3473 bfd_mach_o_dylib_reference *ref = &dysymtab->ext_refs[i];
3474
3475 fprintf (file, " %4u: %5lu 0x%02lx", i, ref->isym, ref->flags);
3476 if (symtab && symtab->symbols
3477 && ref->isym < symtab->nsyms
3478 && symtab->symbols[ref->isym].symbol.name)
3479 fprintf (file, " %s", symtab->symbols[ref->isym].symbol.name);
3480 fprintf (file, "\n");
3481 }
3482 }
3483
3484 }
3485
3486 bfd_boolean
3487 bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, PTR ptr)
3488 {
3489 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3490 FILE *file = (FILE *) ptr;
3491 unsigned int i;
3492
3493 bfd_mach_o_print_private_header (abfd, file);
3494 fputc ('\n', file);
3495
3496 for (i = 0; i < mdata->header.ncmds; i++)
3497 {
3498 bfd_mach_o_load_command *cmd = &mdata->commands[i];
3499
3500 fprintf (file, "Load command %s:",
3501 bfd_mach_o_get_name (bfd_mach_o_load_command_name, cmd->type));
3502 switch (cmd->type)
3503 {
3504 case BFD_MACH_O_LC_SEGMENT:
3505 case BFD_MACH_O_LC_SEGMENT_64:
3506 bfd_mach_o_print_segment (abfd, cmd, file);
3507 break;
3508 case BFD_MACH_O_LC_UUID:
3509 {
3510 bfd_mach_o_uuid_command *uuid = &cmd->command.uuid;
3511 unsigned int i;
3512
3513 for (i = 0; i < sizeof (uuid->uuid); i++)
3514 fprintf (file, " %02x", uuid->uuid[i]);
3515 fputc ('\n', file);
3516 }
3517 break;
3518 case BFD_MACH_O_LC_LOAD_DYLIB:
3519 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3520 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3521 case BFD_MACH_O_LC_ID_DYLIB:
3522 {
3523 bfd_mach_o_dylib_command *dylib = &cmd->command.dylib;
3524 bfd_byte *data = NULL;
3525
3526 if (! bfd_malloc_and_get_section (abfd, dylib->section, &data))
3527 {
3528 if (data != NULL)
3529 free (data);
3530 break;
3531 }
3532 fprintf (file,
3533 " %s\n",
3534 data + dylib->name_offset - cmd->offset - 8);
3535 fprintf (file, " time stamp: 0x%08lx\n",
3536 dylib->timestamp);
3537 fprintf (file, " current version: 0x%08lx\n",
3538 dylib->current_version);
3539 fprintf (file, " comptibility version: 0x%08lx\n",
3540 dylib->compatibility_version);
3541 free (data);
3542 break;
3543 }
3544 case BFD_MACH_O_LC_LOAD_DYLINKER:
3545 {
3546 bfd_mach_o_dylinker_command *linker = &cmd->command.dylinker;
3547 bfd_byte *data = NULL;
3548
3549 if (! bfd_malloc_and_get_section (abfd, linker->section, &data))
3550 {
3551 if (data != NULL)
3552 free (data);
3553 break;
3554 }
3555 fprintf (file,
3556 " %s\n",
3557 data + linker->name_offset - cmd->offset - 8);
3558 free (data);
3559 break;
3560 }
3561 case BFD_MACH_O_LC_SYMTAB:
3562 {
3563 bfd_mach_o_symtab_command *symtab = &cmd->command.symtab;
3564 fprintf (file,
3565 "\n"
3566 " symoff: 0x%08x nsyms: %8u (endoff: 0x%08x)\n",
3567 symtab->symoff, symtab->nsyms,
3568 symtab->symoff + symtab->nsyms
3569 * (mach_o_wide_p (&mdata->header)
3570 ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE));
3571 fprintf (file,
3572 " stroff: 0x%08x strsize: %8u (endoff: 0x%08x)\n",
3573 symtab->stroff, symtab->strsize,
3574 symtab->stroff + symtab->strsize);
3575 break;
3576 }
3577 case BFD_MACH_O_LC_DYSYMTAB:
3578 fprintf (file, "\n");
3579 bfd_mach_o_print_dysymtab (abfd, cmd, file);
3580 break;
3581 case BFD_MACH_O_LC_CODE_SIGNATURE:
3582 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
3583 {
3584 bfd_mach_o_linkedit_command *linkedit = &cmd->command.linkedit;
3585 fprintf
3586 (file, "\n"
3587 " dataoff: 0x%08lx datasize: 0x%08lx (endoff: 0x%08lx)\n",
3588 linkedit->dataoff, linkedit->datasize,
3589 linkedit->dataoff + linkedit->datasize);
3590 break;
3591 }
3592 case BFD_MACH_O_LC_SUB_FRAMEWORK:
3593 case BFD_MACH_O_LC_SUB_UMBRELLA:
3594 case BFD_MACH_O_LC_SUB_LIBRARY:
3595 case BFD_MACH_O_LC_SUB_CLIENT:
3596 {
3597 bfd_mach_o_str_command *str = &cmd->command.str;
3598 fprintf (file, " %s\n", str->str);
3599 break;
3600 }
3601 default:
3602 fprintf (file, "\n");
3603 break;
3604 }
3605 fputc ('\n', file);
3606 }
3607
3608 bfd_mach_o_print_section_map (abfd, file);
3609
3610 return TRUE;
3611 }
3612
3613 int
3614 bfd_mach_o_core_fetch_environment (bfd *abfd,
3615 unsigned char **rbuf,
3616 unsigned int *rlen)
3617 {
3618 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3619 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
3620 unsigned int i = 0;
3621
3622 for (i = 0; i < mdata->header.ncmds; i++)
3623 {
3624 bfd_mach_o_load_command *cur = &mdata->commands[i];
3625 bfd_mach_o_segment_command *seg = NULL;
3626
3627 if (cur->type != BFD_MACH_O_LC_SEGMENT)
3628 continue;
3629
3630 seg = &cur->command.segment;
3631
3632 if ((seg->vmaddr + seg->vmsize) == stackaddr)
3633 {
3634 unsigned long start = seg->fileoff;
3635 unsigned long end = seg->fileoff + seg->filesize;
3636 unsigned char *buf = bfd_malloc (1024);
3637 unsigned long size = 1024;
3638
3639 for (;;)
3640 {
3641 bfd_size_type nread = 0;
3642 unsigned long offset;
3643 int found_nonnull = 0;
3644
3645 if (size > (end - start))
3646 size = (end - start);
3647
3648 buf = bfd_realloc_or_free (buf, size);
3649 if (buf == NULL)
3650 return -1;
3651
3652 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
3653 {
3654 free (buf);
3655 return -1;
3656 }
3657
3658 nread = bfd_bread (buf, size, abfd);
3659
3660 if (nread != size)
3661 {
3662 free (buf);
3663 return -1;
3664 }
3665
3666 for (offset = 4; offset <= size; offset += 4)
3667 {
3668 unsigned long val;
3669
3670 val = *((unsigned long *) (buf + size - offset));
3671 if (! found_nonnull)
3672 {
3673 if (val != 0)
3674 found_nonnull = 1;
3675 }
3676 else if (val == 0x0)
3677 {
3678 unsigned long bottom;
3679 unsigned long top;
3680
3681 bottom = seg->fileoff + seg->filesize - offset;
3682 top = seg->fileoff + seg->filesize - 4;
3683 *rbuf = bfd_malloc (top - bottom);
3684 *rlen = top - bottom;
3685
3686 memcpy (*rbuf, buf + size - *rlen, *rlen);
3687 free (buf);
3688 return 0;
3689 }
3690 }
3691
3692 if (size == (end - start))
3693 break;
3694
3695 size *= 2;
3696 }
3697
3698 free (buf);
3699 }
3700 }
3701
3702 return -1;
3703 }
3704
3705 char *
3706 bfd_mach_o_core_file_failing_command (bfd *abfd)
3707 {
3708 unsigned char *buf = NULL;
3709 unsigned int len = 0;
3710 int ret = -1;
3711
3712 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
3713 if (ret < 0)
3714 return NULL;
3715
3716 return (char *) buf;
3717 }
3718
3719 int
3720 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
3721 {
3722 return 0;
3723 }
3724
3725 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
3726 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
3727
3728 #define bfd_mach_o_swap_reloc_in NULL
3729 #define bfd_mach_o_swap_reloc_out NULL
3730
3731 #define TARGET_NAME mach_o_be_vec
3732 #define TARGET_STRING "mach-o-be"
3733 #define TARGET_BIG_ENDIAN 1
3734 #define TARGET_ARCHIVE 0
3735 #include "mach-o-target.c"
3736
3737 #undef TARGET_NAME
3738 #undef TARGET_STRING
3739 #undef TARGET_BIG_ENDIAN
3740 #undef TARGET_ARCHIVE
3741
3742 #define TARGET_NAME mach_o_le_vec
3743 #define TARGET_STRING "mach-o-le"
3744 #define TARGET_BIG_ENDIAN 0
3745 #define TARGET_ARCHIVE 0
3746
3747 #include "mach-o-target.c"
3748
3749 #undef TARGET_NAME
3750 #undef TARGET_STRING
3751 #undef TARGET_BIG_ENDIAN
3752 #undef TARGET_ARCHIVE
3753
3754 #define TARGET_NAME mach_o_fat_vec
3755 #define TARGET_STRING "mach-o-fat"
3756 #define TARGET_BIG_ENDIAN 1
3757 #define TARGET_ARCHIVE 1
3758
3759 #include "mach-o-target.c"
3760
3761 #undef TARGET_NAME
3762 #undef TARGET_STRING
3763 #undef TARGET_BIG_ENDIAN
3764 #undef TARGET_ARCHIVE