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2009-06-19 Tristan Gingold <gingold@adacore.com>
[deliverable/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 asect->relocation = res;
619 free (native_relocs);
620 return i;
621 }
622
623 static bfd_boolean
624 bfd_mach_o_scan_write_relocs (bfd *abfd, bfd_mach_o_section *section)
625 {
626 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
627 unsigned int i;
628 arelent **entries;
629 asection *sec;
630 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
631
632 sec = section->bfdsection;
633 if (sec->reloc_count == 0)
634 return TRUE;
635
636 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
637 return TRUE;
638
639 /* Allocate relocation room. */
640 mdata->filelen = FILE_ALIGN(mdata->filelen, 2);
641 section->nreloc = sec->reloc_count;
642 sec->rel_filepos = mdata->filelen;
643 section->reloff = sec->rel_filepos;
644 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
645
646 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
647 return FALSE;
648
649 /* Convert and write. */
650 entries = section->bfdsection->orelocation;
651 for (i = 0; i < section->nreloc; i++)
652 {
653 arelent *rel = entries[i];
654 char buf[8];
655 bfd_mach_o_reloc_info info, *pinfo = &info;
656
657 /* Convert relocation to an intermediate representation. */
658 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
659 return FALSE;
660
661 /* Lower the relocation info. */
662 if (pinfo->r_scattered)
663 {
664 unsigned long v;
665
666 v = BFD_MACH_O_SR_SCATTERED
667 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
668 | BFD_MACH_O_SET_SR_LENGTH(pinfo->r_length)
669 | BFD_MACH_O_SET_SR_TYPE(pinfo->r_type)
670 | BFD_MACH_O_SET_SR_ADDRESS(pinfo->r_address);
671 bfd_put_32 (abfd, v, buf);
672 bfd_put_32 (abfd, pinfo->r_value, buf + 4);
673 }
674 else
675 {
676 unsigned long v;
677
678 bfd_put_32 (abfd, pinfo->r_address, buf);
679 v = BFD_MACH_O_SET_R_SYMBOLNUM (pinfo->r_value)
680 | (pinfo->r_pcrel ? BFD_MACH_O_R_PCREL : 0)
681 | BFD_MACH_O_SET_R_LENGTH (pinfo->r_length)
682 | (pinfo->r_extern ? BFD_MACH_O_R_EXTERN : 0)
683 | BFD_MACH_O_SET_R_TYPE (pinfo->r_type);
684 bfd_put_32 (abfd, v, buf + 4);
685 }
686
687 if (bfd_bwrite ((PTR) buf, BFD_MACH_O_RELENT_SIZE, abfd)
688 != BFD_MACH_O_RELENT_SIZE)
689 return FALSE;
690 }
691 return TRUE;
692 }
693
694 static int
695 bfd_mach_o_scan_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
696 {
697 unsigned char buf[BFD_MACH_O_SECTION_SIZE];
698
699 memcpy (buf, section->sectname, 16);
700 memcpy (buf + 16, section->segname, 16);
701 bfd_h_put_32 (abfd, section->addr, buf + 32);
702 bfd_h_put_32 (abfd, section->size, buf + 36);
703 bfd_h_put_32 (abfd, section->offset, buf + 40);
704 bfd_h_put_32 (abfd, section->align, buf + 44);
705 bfd_h_put_32 (abfd, section->reloff, buf + 48);
706 bfd_h_put_32 (abfd, section->nreloc, buf + 52);
707 bfd_h_put_32 (abfd, section->flags, buf + 56);
708 bfd_h_put_32 (abfd, section->reserved1, buf + 60);
709 bfd_h_put_32 (abfd, section->reserved2, buf + 64);
710
711 if (bfd_bwrite ((PTR) buf, BFD_MACH_O_SECTION_SIZE, abfd)
712 != BFD_MACH_O_SECTION_SIZE)
713 return -1;
714
715 return 0;
716 }
717
718 static int
719 bfd_mach_o_scan_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
720 {
721 unsigned char buf[BFD_MACH_O_SECTION_64_SIZE];
722
723 memcpy (buf, section->sectname, 16);
724 memcpy (buf + 16, section->segname, 16);
725 bfd_h_put_64 (abfd, section->addr, buf + 32);
726 bfd_h_put_64 (abfd, section->size, buf + 40);
727 bfd_h_put_32 (abfd, section->offset, buf + 48);
728 bfd_h_put_32 (abfd, section->align, buf + 52);
729 bfd_h_put_32 (abfd, section->reloff, buf + 56);
730 bfd_h_put_32 (abfd, section->nreloc, buf + 60);
731 bfd_h_put_32 (abfd, section->flags, buf + 64);
732 bfd_h_put_32 (abfd, section->reserved1, buf + 68);
733 bfd_h_put_32 (abfd, section->reserved2, buf + 72);
734 bfd_h_put_32 (abfd, section->reserved3, buf + 76);
735
736 if (bfd_bwrite ((PTR) buf, BFD_MACH_O_SECTION_64_SIZE, abfd)
737 != BFD_MACH_O_SECTION_64_SIZE)
738 return -1;
739
740 return 0;
741 }
742
743 static int
744 bfd_mach_o_scan_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
745 {
746 unsigned char buf[BFD_MACH_O_LC_SEGMENT_SIZE];
747 bfd_mach_o_segment_command *seg = &command->command.segment;
748 unsigned long i;
749
750 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
751
752 for (i = 0; i < seg->nsects; i++)
753 if (!bfd_mach_o_scan_write_relocs (abfd, &seg->sections[i]))
754 return -1;
755
756 memcpy (buf, seg->segname, 16);
757 bfd_h_put_32 (abfd, seg->vmaddr, buf + 16);
758 bfd_h_put_32 (abfd, seg->vmsize, buf + 20);
759 bfd_h_put_32 (abfd, seg->fileoff, buf + 24);
760 bfd_h_put_32 (abfd, seg->filesize, buf + 28);
761 bfd_h_put_32 (abfd, seg->maxprot, buf + 32);
762 bfd_h_put_32 (abfd, seg->initprot, buf + 36);
763 bfd_h_put_32 (abfd, seg->nsects, buf + 40);
764 bfd_h_put_32 (abfd, seg->flags, buf + 44);
765
766 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
767 || (bfd_bwrite ((PTR) buf, BFD_MACH_O_LC_SEGMENT_SIZE - 8, abfd)
768 != BFD_MACH_O_LC_SEGMENT_SIZE - 8))
769 return -1;
770
771 for (i = 0; i < seg->nsects; i++)
772 if (bfd_mach_o_scan_write_section_32 (abfd, &seg->sections[i]))
773 return -1;
774
775 return 0;
776 }
777
778 static int
779 bfd_mach_o_scan_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
780 {
781 unsigned char buf[BFD_MACH_O_LC_SEGMENT_64_SIZE];
782 bfd_mach_o_segment_command *seg = &command->command.segment;
783 unsigned long i;
784
785 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
786
787 for (i = 0; i < seg->nsects; i++)
788 if (!bfd_mach_o_scan_write_relocs (abfd, &seg->sections[i]))
789 return -1;
790
791 memcpy (buf, seg->segname, 16);
792 bfd_h_put_64 (abfd, seg->vmaddr, buf + 16);
793 bfd_h_put_64 (abfd, seg->vmsize, buf + 24);
794 bfd_h_put_64 (abfd, seg->fileoff, buf + 32);
795 bfd_h_put_64 (abfd, seg->filesize, buf + 40);
796 bfd_h_put_32 (abfd, seg->maxprot, buf + 48);
797 bfd_h_put_32 (abfd, seg->initprot, buf + 52);
798 bfd_h_put_32 (abfd, seg->nsects, buf + 56);
799 bfd_h_put_32 (abfd, seg->flags, buf + 60);
800
801 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
802 || (bfd_bwrite ((PTR) buf, BFD_MACH_O_LC_SEGMENT_64_SIZE - 8, abfd)
803 != BFD_MACH_O_LC_SEGMENT_64_SIZE - 8))
804 return -1;
805
806 for (i = 0; i < seg->nsects; i++)
807 if (bfd_mach_o_scan_write_section_64 (abfd, &seg->sections[i]))
808 return -1;
809
810 return 0;
811 }
812
813 static bfd_boolean
814 bfd_mach_o_scan_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
815 {
816 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
817 bfd_mach_o_symtab_command *sym = &command->command.symtab;
818 unsigned char buf[16];
819 unsigned long i;
820 unsigned int wide = bfd_mach_o_wide_p (abfd);
821 unsigned int symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
822 struct bfd_strtab_hash *strtab;
823 asymbol **symbols = bfd_get_outsymbols (abfd);
824
825 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
826
827 /* Write the symbols first. */
828 mdata->filelen = FILE_ALIGN(mdata->filelen, wide ? 3 : 2);
829 sym->symoff = mdata->filelen;
830 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
831 return FALSE;
832
833 sym->nsyms = bfd_get_symcount (abfd);
834 mdata->filelen += sym->nsyms * symlen;
835
836 strtab = _bfd_stringtab_init ();
837 if (strtab == NULL)
838 return FALSE;
839
840 for (i = 0; i < sym->nsyms; i++)
841 {
842 unsigned char buf[16];
843 bfd_size_type index;
844 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
845
846 /* Compute name index. */
847 /* An index of 0 always means the empty string. */
848 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
849 index = 0;
850 else
851 {
852 index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
853 if (index == (bfd_size_type) -1)
854 goto err;
855 }
856 bfd_h_put_32 (abfd, index, buf);
857 bfd_h_put_8 (abfd, s->n_type, buf + 4);
858 bfd_h_put_8 (abfd, s->n_sect, buf + 5);
859 bfd_h_put_16 (abfd, s->n_desc, buf + 6);
860 if (wide)
861 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value, buf + 8);
862 else
863 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value, buf + 8);
864
865 if (bfd_bwrite ((PTR) buf, symlen, abfd) != symlen)
866 goto err;
867 }
868 sym->strsize = _bfd_stringtab_size (strtab);
869 sym->stroff = mdata->filelen;
870 mdata->filelen += sym->strsize;
871
872 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
873 goto err;
874 _bfd_stringtab_free (strtab);
875
876 /* The command. */
877 bfd_h_put_32 (abfd, sym->symoff, buf);
878 bfd_h_put_32 (abfd, sym->nsyms, buf + 4);
879 bfd_h_put_32 (abfd, sym->stroff, buf + 8);
880 bfd_h_put_32 (abfd, sym->strsize, buf + 12);
881
882 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
883 || bfd_bwrite ((PTR) buf, 16, abfd) != 16)
884 return FALSE;
885
886 return TRUE;
887
888 err:
889 _bfd_stringtab_free (strtab);
890 return FALSE;
891 }
892
893 /* Process the symbols and generate Mach-O specific fields.
894 Number them. */
895
896 static bfd_boolean
897 bfd_mach_o_mangle_symbols (bfd *abfd)
898 {
899 unsigned long i;
900 asymbol **symbols = bfd_get_outsymbols (abfd);
901
902 for (i = 0; i < bfd_get_symcount (abfd); i++)
903 {
904 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
905
906 if (s->n_type == BFD_MACH_O_N_UNDF && !(s->symbol.flags & BSF_DEBUGGING))
907 {
908 /* As genuine Mach-O symbols type shouldn't be N_UNDF (undefined
909 symbols should be N_UNDEF | N_EXT), we suppose the back-end
910 values haven't been set. */
911 if (s->symbol.section == bfd_abs_section_ptr)
912 s->n_type = BFD_MACH_O_N_ABS;
913 else if (s->symbol.section == bfd_und_section_ptr)
914 {
915 s->n_type = BFD_MACH_O_N_UNDF;
916 if (s->symbol.flags & BSF_WEAK)
917 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
918 }
919 else if (s->symbol.section == bfd_com_section_ptr)
920 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
921 else
922 s->n_type = BFD_MACH_O_N_SECT;
923
924 if (s->symbol.flags & BSF_GLOBAL)
925 s->n_type |= BFD_MACH_O_N_EXT;
926 }
927
928 /* Compute section index. */
929 if (s->symbol.section != bfd_abs_section_ptr
930 && s->symbol.section != bfd_und_section_ptr
931 && s->symbol.section != bfd_com_section_ptr)
932 s->n_sect = s->symbol.section->target_index;
933
934 /* Number symbols. */
935 s->symbol.udata.i = i;
936 }
937 return TRUE;
938 }
939
940 bfd_boolean
941 bfd_mach_o_write_contents (bfd *abfd)
942 {
943 unsigned int i;
944 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
945
946 if (mdata->header.ncmds == 0)
947 if (!bfd_mach_o_build_commands (abfd))
948 return FALSE;
949
950 /* Now write header information. */
951 if (mdata->header.filetype == 0)
952 {
953 if (abfd->flags & EXEC_P)
954 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
955 else if (abfd->flags & DYNAMIC)
956 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
957 else
958 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
959 }
960 if (!bfd_mach_o_write_header (abfd, &mdata->header))
961 return FALSE;
962
963 /* Assign a number to each symbols. */
964 if (!bfd_mach_o_mangle_symbols (abfd))
965 return FALSE;
966
967 for (i = 0; i < mdata->header.ncmds; i++)
968 {
969 unsigned char buf[8];
970 bfd_mach_o_load_command *cur = &mdata->commands[i];
971 unsigned long typeflag;
972
973 typeflag = cur->type | (cur->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
974
975 bfd_h_put_32 (abfd, typeflag, buf);
976 bfd_h_put_32 (abfd, cur->len, buf + 4);
977
978 if (bfd_seek (abfd, cur->offset, SEEK_SET) != 0
979 || bfd_bwrite ((PTR) buf, 8, abfd) != 8)
980 return FALSE;
981
982 switch (cur->type)
983 {
984 case BFD_MACH_O_LC_SEGMENT:
985 if (bfd_mach_o_scan_write_segment_32 (abfd, cur) != 0)
986 return FALSE;
987 break;
988 case BFD_MACH_O_LC_SEGMENT_64:
989 if (bfd_mach_o_scan_write_segment_64 (abfd, cur) != 0)
990 return FALSE;
991 break;
992 case BFD_MACH_O_LC_SYMTAB:
993 if (!bfd_mach_o_scan_write_symtab (abfd, cur))
994 return FALSE;
995 break;
996 case BFD_MACH_O_LC_SYMSEG:
997 break;
998 case BFD_MACH_O_LC_THREAD:
999 case BFD_MACH_O_LC_UNIXTHREAD:
1000 if (bfd_mach_o_scan_write_thread (abfd, cur) != 0)
1001 return FALSE;
1002 break;
1003 case BFD_MACH_O_LC_LOADFVMLIB:
1004 case BFD_MACH_O_LC_IDFVMLIB:
1005 case BFD_MACH_O_LC_IDENT:
1006 case BFD_MACH_O_LC_FVMFILE:
1007 case BFD_MACH_O_LC_PREPAGE:
1008 case BFD_MACH_O_LC_DYSYMTAB:
1009 case BFD_MACH_O_LC_LOAD_DYLIB:
1010 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
1011 case BFD_MACH_O_LC_ID_DYLIB:
1012 case BFD_MACH_O_LC_REEXPORT_DYLIB:
1013 case BFD_MACH_O_LC_LOAD_DYLINKER:
1014 case BFD_MACH_O_LC_ID_DYLINKER:
1015 case BFD_MACH_O_LC_PREBOUND_DYLIB:
1016 case BFD_MACH_O_LC_ROUTINES:
1017 case BFD_MACH_O_LC_SUB_FRAMEWORK:
1018 break;
1019 default:
1020 fprintf (stderr,
1021 "unable to write unknown load command 0x%lx\n",
1022 (unsigned long) cur->type);
1023 return FALSE;
1024 }
1025 }
1026
1027 return TRUE;
1028 }
1029
1030 /* Build Mach-O load commands from the sections. */
1031
1032 bfd_boolean
1033 bfd_mach_o_build_commands (bfd *abfd)
1034 {
1035 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1036 unsigned int wide = mach_o_wide_p (&mdata->header);
1037 bfd_mach_o_segment_command *seg;
1038 bfd_mach_o_section *sections;
1039 asection *sec;
1040 bfd_mach_o_load_command *cmd;
1041 bfd_mach_o_load_command *symtab_cmd;
1042 int target_index;
1043
1044 /* Return now if commands are already built. */
1045 if (mdata->header.ncmds)
1046 return FALSE;
1047
1048 /* Very simple version: 1 command (segment) containing all sections. */
1049 mdata->header.ncmds = 2;
1050 mdata->commands = bfd_alloc (abfd, mdata->header.ncmds
1051 * sizeof (bfd_mach_o_load_command));
1052 if (mdata->commands == NULL)
1053 return FALSE;
1054 cmd = &mdata->commands[0];
1055 seg = &cmd->command.segment;
1056
1057 seg->nsects = bfd_count_sections (abfd);
1058 sections = bfd_alloc (abfd, seg->nsects * sizeof (bfd_mach_o_section));
1059 if (sections == NULL)
1060 return FALSE;
1061 seg->sections = sections;
1062
1063 /* Set segment command. */
1064 if (wide)
1065 {
1066 cmd->type = BFD_MACH_O_LC_SEGMENT_64;
1067 cmd->offset = BFD_MACH_O_HEADER_64_SIZE;
1068 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
1069 + BFD_MACH_O_SECTION_64_SIZE * seg->nsects;
1070 }
1071 else
1072 {
1073 cmd->type = BFD_MACH_O_LC_SEGMENT;
1074 cmd->offset = BFD_MACH_O_HEADER_SIZE;
1075 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
1076 + BFD_MACH_O_SECTION_SIZE * seg->nsects;
1077 }
1078 cmd->type_required = FALSE;
1079 mdata->header.sizeofcmds = cmd->len;
1080 mdata->filelen = cmd->offset + cmd->len;
1081
1082 /* Set symtab command. */
1083 symtab_cmd = &mdata->commands[1];
1084
1085 symtab_cmd->type = BFD_MACH_O_LC_SYMTAB;
1086 symtab_cmd->offset = cmd->offset + cmd->len;
1087 symtab_cmd->len = 6 * 4;
1088 symtab_cmd->type_required = FALSE;
1089
1090 mdata->header.sizeofcmds += symtab_cmd->len;
1091 mdata->filelen += symtab_cmd->len;
1092
1093 /* Fill segment command. */
1094 memset (seg->segname, 0, sizeof (seg->segname));
1095 seg->vmaddr = 0;
1096 seg->fileoff = mdata->filelen;
1097 seg->filesize = 0;
1098 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
1099 | BFD_MACH_O_PROT_EXECUTE;
1100 seg->initprot = seg->maxprot;
1101 seg->flags = 0;
1102
1103 /* Create Mach-O sections. */
1104 target_index = 0;
1105 for (sec = abfd->sections; sec; sec = sec->next)
1106 {
1107 sections->bfdsection = sec;
1108 bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, sections);
1109 sections->addr = bfd_get_section_vma (abfd, sec);
1110 sections->size = bfd_get_section_size (sec);
1111 sections->align = bfd_get_section_alignment (abfd, sec);
1112
1113 if (sections->size != 0)
1114 {
1115 mdata->filelen = FILE_ALIGN (mdata->filelen, sections->align);
1116 sections->offset = mdata->filelen;
1117 }
1118 else
1119 sections->offset = 0;
1120 sections->reloff = 0;
1121 sections->nreloc = 0;
1122 sections->reserved1 = 0;
1123 sections->reserved2 = 0;
1124 sections->reserved3 = 0;
1125
1126 sec->filepos = sections->offset;
1127 sec->target_index = ++target_index;
1128
1129 mdata->filelen += sections->size;
1130 sections++;
1131 }
1132 seg->filesize = mdata->filelen - seg->fileoff;
1133 seg->vmsize = seg->filesize;
1134
1135 return TRUE;
1136 }
1137
1138 /* Set the contents of a section. */
1139
1140 bfd_boolean
1141 bfd_mach_o_set_section_contents (bfd *abfd,
1142 asection *section,
1143 const void * location,
1144 file_ptr offset,
1145 bfd_size_type count)
1146 {
1147 file_ptr pos;
1148
1149 /* This must be done first, because bfd_set_section_contents is
1150 going to set output_has_begun to TRUE. */
1151 if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd))
1152 return FALSE;
1153
1154 if (count == 0)
1155 return TRUE;
1156
1157 pos = section->filepos + offset;
1158 if (bfd_seek (abfd, pos, SEEK_SET) != 0
1159 || bfd_bwrite (location, count, abfd) != count)
1160 return FALSE;
1161
1162 return TRUE;
1163 }
1164
1165 int
1166 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
1167 struct bfd_link_info *info ATTRIBUTE_UNUSED)
1168 {
1169 return 0;
1170 }
1171
1172 /* Make an empty symbol. This is required only because
1173 bfd_make_section_anyway wants to create a symbol for the section. */
1174
1175 asymbol *
1176 bfd_mach_o_make_empty_symbol (bfd *abfd)
1177 {
1178 asymbol *new;
1179
1180 new = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
1181 if (new == NULL)
1182 return new;
1183 new->the_bfd = abfd;
1184 new->udata.i = 0;
1185 return new;
1186 }
1187
1188 static bfd_boolean
1189 bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
1190 {
1191 unsigned char buf[32];
1192 unsigned int size;
1193 bfd_vma (*get32) (const void *) = NULL;
1194
1195 /* Just read the magic number. */
1196 if (bfd_seek (abfd, 0, SEEK_SET) != 0
1197 || bfd_bread ((PTR) buf, 4, abfd) != 4)
1198 return FALSE;
1199
1200 if (bfd_getb32 (buf) == BFD_MACH_O_MH_MAGIC)
1201 {
1202 header->byteorder = BFD_ENDIAN_BIG;
1203 header->magic = BFD_MACH_O_MH_MAGIC;
1204 header->version = 1;
1205 get32 = bfd_getb32;
1206 }
1207 else if (bfd_getl32 (buf) == BFD_MACH_O_MH_MAGIC)
1208 {
1209 header->byteorder = BFD_ENDIAN_LITTLE;
1210 header->magic = BFD_MACH_O_MH_MAGIC;
1211 header->version = 1;
1212 get32 = bfd_getl32;
1213 }
1214 else if (bfd_getb32 (buf) == BFD_MACH_O_MH_MAGIC_64)
1215 {
1216 header->byteorder = BFD_ENDIAN_BIG;
1217 header->magic = BFD_MACH_O_MH_MAGIC_64;
1218 header->version = 2;
1219 get32 = bfd_getb32;
1220 }
1221 else if (bfd_getl32 (buf) == BFD_MACH_O_MH_MAGIC_64)
1222 {
1223 header->byteorder = BFD_ENDIAN_LITTLE;
1224 header->magic = BFD_MACH_O_MH_MAGIC_64;
1225 header->version = 2;
1226 get32 = bfd_getl32;
1227 }
1228 else
1229 {
1230 header->byteorder = BFD_ENDIAN_UNKNOWN;
1231 return FALSE;
1232 }
1233
1234 /* Once the size of the header is known, read the full header. */
1235 size = mach_o_wide_p (header) ?
1236 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1237
1238 if (bfd_seek (abfd, 0, SEEK_SET) != 0
1239 || bfd_bread ((PTR) buf, size, abfd) != size)
1240 return FALSE;
1241
1242 header->cputype = (*get32) (buf + 4);
1243 header->cpusubtype = (*get32) (buf + 8);
1244 header->filetype = (*get32) (buf + 12);
1245 header->ncmds = (*get32) (buf + 16);
1246 header->sizeofcmds = (*get32) (buf + 20);
1247 header->flags = (*get32) (buf + 24);
1248
1249 if (mach_o_wide_p (header))
1250 header->reserved = (*get32) (buf + 28);
1251
1252 return TRUE;
1253 }
1254
1255 static asection *
1256 bfd_mach_o_make_bfd_section (bfd *abfd, bfd_mach_o_section *section,
1257 unsigned long prot)
1258 {
1259 asection *bfdsec;
1260 char *sname;
1261 flagword flags;
1262
1263 sname = bfd_mach_o_convert_section_name_to_bfd (abfd, section);
1264 if (sname == NULL)
1265 return NULL;
1266
1267 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
1268 flags = SEC_HAS_CONTENTS | SEC_DEBUGGING;
1269 else
1270 {
1271 flags = SEC_ALLOC;
1272 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1273 != BFD_MACH_O_S_ZEROFILL)
1274 {
1275 flags |= SEC_HAS_CONTENTS | SEC_LOAD;
1276 if (prot & BFD_MACH_O_PROT_EXECUTE)
1277 flags |= SEC_CODE;
1278 if (prot & BFD_MACH_O_PROT_WRITE)
1279 flags |= SEC_DATA;
1280 else if (prot & BFD_MACH_O_PROT_READ)
1281 flags |= SEC_READONLY;
1282 }
1283 }
1284 if (section->nreloc != 0)
1285 flags |= SEC_RELOC;
1286
1287 bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, flags);
1288 if (bfdsec == NULL)
1289 return NULL;
1290
1291 bfdsec->vma = section->addr;
1292 bfdsec->lma = section->addr;
1293 bfdsec->size = section->size;
1294 bfdsec->filepos = section->offset;
1295 bfdsec->alignment_power = section->align;
1296 bfdsec->segment_mark = 0;
1297 bfdsec->reloc_count = section->nreloc;
1298 bfdsec->rel_filepos = section->reloff;
1299
1300 return bfdsec;
1301 }
1302
1303 static int
1304 bfd_mach_o_scan_read_section_32 (bfd *abfd,
1305 bfd_mach_o_section *section,
1306 unsigned int offset,
1307 unsigned long prot)
1308 {
1309 unsigned char buf[BFD_MACH_O_SECTION_SIZE];
1310
1311 if (bfd_seek (abfd, offset, SEEK_SET) != 0
1312 || (bfd_bread ((PTR) buf, BFD_MACH_O_SECTION_SIZE, abfd)
1313 != BFD_MACH_O_SECTION_SIZE))
1314 return -1;
1315
1316 memcpy (section->sectname, buf, 16);
1317 section->sectname[16] = '\0';
1318 memcpy (section->segname, buf + 16, 16);
1319 section->segname[16] = '\0';
1320 section->addr = bfd_h_get_32 (abfd, buf + 32);
1321 section->size = bfd_h_get_32 (abfd, buf + 36);
1322 section->offset = bfd_h_get_32 (abfd, buf + 40);
1323 section->align = bfd_h_get_32 (abfd, buf + 44);
1324 section->reloff = bfd_h_get_32 (abfd, buf + 48);
1325 section->nreloc = bfd_h_get_32 (abfd, buf + 52);
1326 section->flags = bfd_h_get_32 (abfd, buf + 56);
1327 section->reserved1 = bfd_h_get_32 (abfd, buf + 60);
1328 section->reserved2 = bfd_h_get_32 (abfd, buf + 64);
1329 section->reserved3 = 0;
1330 section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section, prot);
1331
1332 if (section->bfdsection == NULL)
1333 return -1;
1334
1335 return 0;
1336 }
1337
1338 static int
1339 bfd_mach_o_scan_read_section_64 (bfd *abfd,
1340 bfd_mach_o_section *section,
1341 unsigned int offset,
1342 unsigned long prot)
1343 {
1344 unsigned char buf[BFD_MACH_O_SECTION_64_SIZE];
1345
1346 if (bfd_seek (abfd, offset, SEEK_SET) != 0
1347 || (bfd_bread ((PTR) buf, BFD_MACH_O_SECTION_64_SIZE, abfd)
1348 != BFD_MACH_O_SECTION_64_SIZE))
1349 return -1;
1350
1351 memcpy (section->sectname, buf, 16);
1352 section->sectname[16] = '\0';
1353 memcpy (section->segname, buf + 16, 16);
1354 section->segname[16] = '\0';
1355 section->addr = bfd_h_get_64 (abfd, buf + 32);
1356 section->size = bfd_h_get_64 (abfd, buf + 40);
1357 section->offset = bfd_h_get_32 (abfd, buf + 48);
1358 section->align = bfd_h_get_32 (abfd, buf + 52);
1359 section->reloff = bfd_h_get_32 (abfd, buf + 56);
1360 section->nreloc = bfd_h_get_32 (abfd, buf + 60);
1361 section->flags = bfd_h_get_32 (abfd, buf + 64);
1362 section->reserved1 = bfd_h_get_32 (abfd, buf + 68);
1363 section->reserved2 = bfd_h_get_32 (abfd, buf + 72);
1364 section->reserved3 = bfd_h_get_32 (abfd, buf + 76);
1365 section->bfdsection = bfd_mach_o_make_bfd_section (abfd, section, prot);
1366
1367 if (section->bfdsection == NULL)
1368 return -1;
1369
1370 return 0;
1371 }
1372
1373 static int
1374 bfd_mach_o_scan_read_section (bfd *abfd,
1375 bfd_mach_o_section *section,
1376 unsigned int offset,
1377 unsigned long prot,
1378 unsigned int wide)
1379 {
1380 if (wide)
1381 return bfd_mach_o_scan_read_section_64 (abfd, section, offset, prot);
1382 else
1383 return bfd_mach_o_scan_read_section_32 (abfd, section, offset, prot);
1384 }
1385
1386 static int
1387 bfd_mach_o_scan_read_symtab_symbol (bfd *abfd,
1388 bfd_mach_o_symtab_command *sym,
1389 bfd_mach_o_asymbol *s,
1390 unsigned long i)
1391 {
1392 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1393 unsigned int wide = mach_o_wide_p (&mdata->header);
1394 unsigned int symwidth =
1395 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
1396 unsigned int symoff = sym->symoff + (i * symwidth);
1397 unsigned char buf[16];
1398 unsigned char type = -1;
1399 unsigned char section = -1;
1400 short desc = -1;
1401 symvalue value = -1;
1402 unsigned long stroff = -1;
1403 unsigned int symtype = -1;
1404
1405 BFD_ASSERT (sym->strtab != NULL);
1406
1407 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
1408 || bfd_bread ((PTR) buf, symwidth, abfd) != symwidth)
1409 {
1410 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: unable to read %d bytes at %lu\n",
1411 symwidth, (unsigned long) symoff);
1412 return -1;
1413 }
1414
1415 stroff = bfd_h_get_32 (abfd, buf);
1416 type = bfd_h_get_8 (abfd, buf + 4);
1417 symtype = type & BFD_MACH_O_N_TYPE;
1418 section = bfd_h_get_8 (abfd, buf + 5);
1419 desc = bfd_h_get_16 (abfd, buf + 6);
1420 if (wide)
1421 value = bfd_h_get_64 (abfd, buf + 8);
1422 else
1423 value = bfd_h_get_32 (abfd, buf + 8);
1424
1425 if (stroff >= sym->strsize)
1426 {
1427 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: symbol name out of range (%lu >= %lu)\n",
1428 (unsigned long) stroff, (unsigned long) sym->strsize);
1429 return -1;
1430 }
1431
1432 s->symbol.the_bfd = abfd;
1433 s->symbol.name = sym->strtab + stroff;
1434 s->symbol.value = value;
1435 s->symbol.flags = 0x0;
1436 s->symbol.udata.i = 0;
1437 s->n_type = type;
1438 s->n_sect = section;
1439 s->n_desc = desc;
1440
1441 if (type & BFD_MACH_O_N_STAB)
1442 {
1443 s->symbol.flags |= BSF_DEBUGGING;
1444 s->symbol.section = bfd_und_section_ptr;
1445 switch (type)
1446 {
1447 case N_FUN:
1448 case N_STSYM:
1449 case N_LCSYM:
1450 case N_BNSYM:
1451 case N_SLINE:
1452 case N_ENSYM:
1453 case N_ECOMM:
1454 case N_ECOML:
1455 case N_GSYM:
1456 if ((section > 0) && (section <= mdata->nsects))
1457 {
1458 s->symbol.section = mdata->sections[section - 1]->bfdsection;
1459 s->symbol.value =
1460 s->symbol.value - mdata->sections[section - 1]->addr;
1461 }
1462 break;
1463 }
1464 }
1465 else
1466 {
1467 if (type & BFD_MACH_O_N_PEXT)
1468 s->symbol.flags |= BSF_GLOBAL;
1469
1470 if (type & BFD_MACH_O_N_EXT)
1471 s->symbol.flags |= BSF_GLOBAL;
1472
1473 if (!(type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT)))
1474 s->symbol.flags |= BSF_LOCAL;
1475
1476 switch (symtype)
1477 {
1478 case BFD_MACH_O_N_UNDF:
1479 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
1480 && s->symbol.value != 0)
1481 {
1482 /* A common symbol. */
1483 s->symbol.section = bfd_com_section_ptr;
1484 s->symbol.flags = BSF_NO_FLAGS;
1485 }
1486 else
1487 {
1488 s->symbol.section = bfd_und_section_ptr;
1489 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
1490 s->symbol.flags |= BSF_WEAK;
1491 }
1492 break;
1493 case BFD_MACH_O_N_PBUD:
1494 s->symbol.section = bfd_und_section_ptr;
1495 break;
1496 case BFD_MACH_O_N_ABS:
1497 s->symbol.section = bfd_abs_section_ptr;
1498 break;
1499 case BFD_MACH_O_N_SECT:
1500 if ((section > 0) && (section <= mdata->nsects))
1501 {
1502 s->symbol.section = mdata->sections[section - 1]->bfdsection;
1503 s->symbol.value =
1504 s->symbol.value - mdata->sections[section - 1]->addr;
1505 }
1506 else
1507 {
1508 /* Mach-O uses 0 to mean "no section"; not an error. */
1509 if (section != 0)
1510 {
1511 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
1512 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined\n",
1513 s->symbol.name, section, mdata->nsects);
1514 }
1515 s->symbol.section = bfd_und_section_ptr;
1516 }
1517 break;
1518 case BFD_MACH_O_N_INDR:
1519 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
1520 "symbol \"%s\" is unsupported 'indirect' reference: setting to undefined\n",
1521 s->symbol.name);
1522 s->symbol.section = bfd_und_section_ptr;
1523 break;
1524 default:
1525 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbol: "
1526 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined\n",
1527 s->symbol.name, symtype);
1528 s->symbol.section = bfd_und_section_ptr;
1529 break;
1530 }
1531 }
1532
1533 return 0;
1534 }
1535
1536 static int
1537 bfd_mach_o_scan_read_symtab_strtab (bfd *abfd)
1538 {
1539 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1540 bfd_mach_o_symtab_command *sym = mdata->symtab;
1541
1542 /* Fail if there is no symtab. */
1543 if (sym == NULL)
1544 return -1;
1545
1546 /* Success if already loaded. */
1547 if (sym->strtab)
1548 return 0;
1549
1550 if (abfd->flags & BFD_IN_MEMORY)
1551 {
1552 struct bfd_in_memory *b;
1553
1554 b = (struct bfd_in_memory *) abfd->iostream;
1555
1556 if ((sym->stroff + sym->strsize) > b->size)
1557 {
1558 bfd_set_error (bfd_error_file_truncated);
1559 return -1;
1560 }
1561 sym->strtab = (char *) b->buffer + sym->stroff;
1562 }
1563 else
1564 {
1565 sym->strtab = bfd_alloc (abfd, sym->strsize);
1566 if (sym->strtab == NULL)
1567 return -1;
1568
1569 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
1570 || bfd_bread ((PTR) sym->strtab, sym->strsize, abfd) != sym->strsize)
1571 {
1572 bfd_set_error (bfd_error_file_truncated);
1573 return -1;
1574 }
1575 }
1576
1577 return 0;
1578 }
1579
1580 static int
1581 bfd_mach_o_scan_read_symtab_symbols (bfd *abfd)
1582 {
1583 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1584 bfd_mach_o_symtab_command *sym = mdata->symtab;
1585 unsigned long i;
1586 int ret;
1587
1588 if (sym->symbols)
1589 return 0;
1590
1591 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
1592
1593 if (sym->symbols == NULL)
1594 {
1595 fprintf (stderr, "bfd_mach_o_scan_read_symtab_symbols: unable to allocate memory for symbols\n");
1596 return -1;
1597 }
1598
1599 ret = bfd_mach_o_scan_read_symtab_strtab (abfd);
1600 if (ret != 0)
1601 return ret;
1602
1603 for (i = 0; i < sym->nsyms; i++)
1604 {
1605 ret = bfd_mach_o_scan_read_symtab_symbol (abfd, sym, &sym->symbols[i], i);
1606 if (ret != 0)
1607 return ret;
1608 }
1609
1610 return 0;
1611 }
1612
1613 int
1614 bfd_mach_o_scan_read_dysymtab_symbol (bfd *abfd,
1615 bfd_mach_o_dysymtab_command *dysym,
1616 bfd_mach_o_symtab_command *sym,
1617 bfd_mach_o_asymbol *s,
1618 unsigned long i)
1619 {
1620 unsigned long isymoff = dysym->indirectsymoff + (i * 4);
1621 unsigned long symindex;
1622 unsigned char buf[4];
1623
1624 BFD_ASSERT (i < dysym->nindirectsyms);
1625
1626 if (bfd_seek (abfd, isymoff, SEEK_SET) != 0
1627 || bfd_bread ((PTR) buf, 4, abfd) != 4)
1628 {
1629 fprintf (stderr, "bfd_mach_o_scan_read_dysymtab_symbol: unable to read %lu bytes at %lu\n",
1630 (unsigned long) 4, isymoff);
1631 return -1;
1632 }
1633 symindex = bfd_h_get_32 (abfd, buf);
1634
1635 return bfd_mach_o_scan_read_symtab_symbol (abfd, sym, s, symindex);
1636 }
1637
1638 static const char *
1639 bfd_mach_o_i386_flavour_string (unsigned int flavour)
1640 {
1641 switch ((int) flavour)
1642 {
1643 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
1644 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
1645 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
1646 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
1647 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
1648 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
1649 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
1650 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
1651 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
1652 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
1653 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
1654 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
1655 case BFD_MACH_O_THREAD_STATE_NONE: return "THREAD_STATE_NONE";
1656 default: return "UNKNOWN";
1657 }
1658 }
1659
1660 static const char *
1661 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
1662 {
1663 switch ((int) flavour)
1664 {
1665 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
1666 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
1667 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
1668 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
1669 default: return "UNKNOWN";
1670 }
1671 }
1672
1673 static int
1674 bfd_mach_o_scan_read_dylinker (bfd *abfd,
1675 bfd_mach_o_load_command *command)
1676 {
1677 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1678 unsigned char buf[4];
1679 unsigned int nameoff;
1680 asection *bfdsec;
1681 char *sname;
1682 const char *prefix;
1683
1684 BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER)
1685 || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER));
1686
1687 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
1688 || bfd_bread ((PTR) buf, 4, abfd) != 4)
1689 return -1;
1690
1691 nameoff = bfd_h_get_32 (abfd, buf + 0);
1692
1693 cmd->name_offset = command->offset + nameoff;
1694 cmd->name_len = command->len - nameoff;
1695
1696 if (command->type == BFD_MACH_O_LC_LOAD_DYLINKER)
1697 prefix = "LC_LOAD_DYLINKER";
1698 else if (command->type == BFD_MACH_O_LC_ID_DYLINKER)
1699 prefix = "LC_ID_DYLINKER";
1700 else
1701 abort ();
1702
1703 sname = bfd_alloc (abfd, strlen (prefix) + 1);
1704 if (sname == NULL)
1705 return -1;
1706 strcpy (sname, prefix);
1707
1708 bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, SEC_HAS_CONTENTS);
1709 if (bfdsec == NULL)
1710 return -1;
1711
1712 bfdsec->vma = 0;
1713 bfdsec->lma = 0;
1714 bfdsec->size = command->len - nameoff;
1715 bfdsec->filepos = command->offset + nameoff;
1716 bfdsec->alignment_power = 0;
1717
1718 cmd->section = bfdsec;
1719
1720 return 0;
1721 }
1722
1723 static int
1724 bfd_mach_o_scan_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1725 {
1726 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1727 unsigned char buf[16];
1728 unsigned int nameoff;
1729 asection *bfdsec;
1730 char *sname;
1731 const char *prefix;
1732
1733 switch (command->type)
1734 {
1735 case BFD_MACH_O_LC_LOAD_DYLIB:
1736 prefix = "LC_LOAD_DYLIB";
1737 break;
1738 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
1739 prefix = "LC_LOAD_WEAK_DYLIB";
1740 break;
1741 case BFD_MACH_O_LC_ID_DYLIB:
1742 prefix = "LC_ID_DYLIB";
1743 break;
1744 case BFD_MACH_O_LC_REEXPORT_DYLIB:
1745 prefix = "LC_REEXPORT_DYLIB";
1746 break;
1747 default:
1748 abort ();
1749 }
1750
1751 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
1752 || bfd_bread ((PTR) buf, 16, abfd) != 16)
1753 return -1;
1754
1755 nameoff = bfd_h_get_32 (abfd, buf + 0);
1756 cmd->timestamp = bfd_h_get_32 (abfd, buf + 4);
1757 cmd->current_version = bfd_h_get_32 (abfd, buf + 8);
1758 cmd->compatibility_version = bfd_h_get_32 (abfd, buf + 12);
1759
1760 cmd->name_offset = command->offset + nameoff;
1761 cmd->name_len = command->len - nameoff;
1762
1763 sname = bfd_alloc (abfd, strlen (prefix) + 1);
1764 if (sname == NULL)
1765 return -1;
1766 strcpy (sname, prefix);
1767
1768 bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, SEC_HAS_CONTENTS);
1769 if (bfdsec == NULL)
1770 return -1;
1771
1772 bfdsec->vma = 0;
1773 bfdsec->lma = 0;
1774 bfdsec->size = command->len - 8;
1775 bfdsec->filepos = command->offset + 8;
1776 bfdsec->alignment_power = 0;
1777
1778 cmd->section = bfdsec;
1779
1780 return 0;
1781 }
1782
1783 static int
1784 bfd_mach_o_scan_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED,
1785 bfd_mach_o_load_command *command ATTRIBUTE_UNUSED)
1786 {
1787 /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */
1788
1789 BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB);
1790 return 0;
1791 }
1792
1793 static int
1794 bfd_mach_o_scan_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
1795 {
1796 bfd_mach_o_data_struct *mdata = NULL;
1797 bfd_mach_o_thread_command *cmd = &command->command.thread;
1798 unsigned char buf[8];
1799 unsigned int offset;
1800 unsigned int nflavours;
1801 unsigned int i;
1802
1803 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1804 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1805
1806 BFD_ASSERT (bfd_mach_o_valid (abfd));
1807 mdata = bfd_mach_o_get_data (abfd);
1808
1809 offset = 8;
1810 nflavours = 0;
1811 while (offset != command->len)
1812 {
1813 if (offset >= command->len)
1814 return -1;
1815
1816 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
1817 || bfd_bread ((PTR) buf, 8, abfd) != 8)
1818 return -1;
1819
1820 offset += 8 + bfd_h_get_32 (abfd, buf + 4) * 4;
1821 nflavours++;
1822 }
1823
1824 cmd->flavours = bfd_alloc (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
1825 if (cmd->flavours == NULL)
1826 return -1;
1827 cmd->nflavours = nflavours;
1828
1829 offset = 8;
1830 nflavours = 0;
1831 while (offset != command->len)
1832 {
1833 if (offset >= command->len)
1834 return -1;
1835
1836 if (nflavours >= cmd->nflavours)
1837 return -1;
1838
1839 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
1840 || bfd_bread ((PTR) buf, 8, abfd) != 8)
1841 return -1;
1842
1843 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, buf);
1844 cmd->flavours[nflavours].offset = command->offset + offset + 8;
1845 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, buf + 4) * 4;
1846 offset += cmd->flavours[nflavours].size + 8;
1847 nflavours++;
1848 }
1849
1850 for (i = 0; i < nflavours; i++)
1851 {
1852 asection *bfdsec;
1853 unsigned int snamelen;
1854 char *sname;
1855 const char *flavourstr;
1856 const char *prefix = "LC_THREAD";
1857 unsigned int j = 0;
1858
1859 switch (mdata->header.cputype)
1860 {
1861 case BFD_MACH_O_CPU_TYPE_POWERPC:
1862 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1863 flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
1864 break;
1865 case BFD_MACH_O_CPU_TYPE_I386:
1866 case BFD_MACH_O_CPU_TYPE_X86_64:
1867 flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
1868 break;
1869 default:
1870 flavourstr = "UNKNOWN_ARCHITECTURE";
1871 break;
1872 }
1873
1874 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
1875 sname = bfd_alloc (abfd, snamelen);
1876 if (sname == NULL)
1877 return -1;
1878
1879 for (;;)
1880 {
1881 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
1882 if (bfd_get_section_by_name (abfd, sname) == NULL)
1883 break;
1884 j++;
1885 }
1886
1887 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
1888
1889 bfdsec->vma = 0;
1890 bfdsec->lma = 0;
1891 bfdsec->size = cmd->flavours[i].size;
1892 bfdsec->filepos = cmd->flavours[i].offset;
1893 bfdsec->alignment_power = 0x0;
1894
1895 cmd->section = bfdsec;
1896 }
1897
1898 return 0;
1899 }
1900
1901 static int
1902 bfd_mach_o_scan_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
1903 {
1904 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
1905 unsigned char buf[72];
1906
1907 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
1908
1909 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
1910 || bfd_bread ((PTR) buf, 72, abfd) != 72)
1911 return -1;
1912
1913 cmd->ilocalsym = bfd_h_get_32 (abfd, buf + 0);
1914 cmd->nlocalsym = bfd_h_get_32 (abfd, buf + 4);
1915 cmd->iextdefsym = bfd_h_get_32 (abfd, buf + 8);
1916 cmd->nextdefsym = bfd_h_get_32 (abfd, buf + 12);
1917 cmd->iundefsym = bfd_h_get_32 (abfd, buf + 16);
1918 cmd->nundefsym = bfd_h_get_32 (abfd, buf + 20);
1919 cmd->tocoff = bfd_h_get_32 (abfd, buf + 24);
1920 cmd->ntoc = bfd_h_get_32 (abfd, buf + 28);
1921 cmd->modtaboff = bfd_h_get_32 (abfd, buf + 32);
1922 cmd->nmodtab = bfd_h_get_32 (abfd, buf + 36);
1923 cmd->extrefsymoff = bfd_h_get_32 (abfd, buf + 40);
1924 cmd->nextrefsyms = bfd_h_get_32 (abfd, buf + 44);
1925 cmd->indirectsymoff = bfd_h_get_32 (abfd, buf + 48);
1926 cmd->nindirectsyms = bfd_h_get_32 (abfd, buf + 52);
1927 cmd->extreloff = bfd_h_get_32 (abfd, buf + 56);
1928 cmd->nextrel = bfd_h_get_32 (abfd, buf + 60);
1929 cmd->locreloff = bfd_h_get_32 (abfd, buf + 64);
1930 cmd->nlocrel = bfd_h_get_32 (abfd, buf + 68);
1931
1932 if (cmd->nmodtab != 0)
1933 {
1934 char buf[56];
1935 unsigned int i;
1936 int wide = bfd_mach_o_wide_p (abfd);
1937 unsigned int module_len = wide ? 56 : 52;
1938
1939 cmd->dylib_module =
1940 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
1941 if (cmd->dylib_module == NULL)
1942 return -1;
1943
1944 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
1945 return -1;
1946
1947 for (i = 0; i < cmd->nmodtab; i++)
1948 {
1949 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
1950 unsigned long v;
1951
1952 if (bfd_bread ((PTR) buf, module_len, abfd) != module_len)
1953 return -1;
1954
1955 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
1956 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
1957 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
1958 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
1959 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
1960 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
1961 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
1962 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
1963 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
1964 v = bfd_h_get_32 (abfd, buf +36);
1965 module->iinit = v & 0xffff;
1966 module->iterm = (v >> 16) & 0xffff;
1967 v = bfd_h_get_32 (abfd, buf + 40);
1968 module->ninit = v & 0xffff;
1969 module->nterm = (v >> 16) & 0xffff;
1970 if (wide)
1971 {
1972 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
1973 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
1974 }
1975 else
1976 {
1977 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
1978 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
1979 }
1980 }
1981 }
1982
1983 if (cmd->ntoc != 0)
1984 {
1985 char buf[8];
1986 unsigned int i;
1987
1988 cmd->dylib_toc = bfd_alloc
1989 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
1990 if (cmd->dylib_toc == NULL)
1991 return -1;
1992
1993 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
1994 return -1;
1995
1996 for (i = 0; i < cmd->ntoc; i++)
1997 {
1998 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
1999
2000 if (bfd_bread ((PTR) buf, 8, abfd) != 8)
2001 return -1;
2002
2003 toc->symbol_index = bfd_h_get_32 (abfd, buf + 0);
2004 toc->module_index = bfd_h_get_32 (abfd, buf + 4);
2005 }
2006 }
2007
2008 if (cmd->nindirectsyms != 0)
2009 {
2010 char buf[4];
2011 unsigned int i;
2012
2013 cmd->indirect_syms = bfd_alloc
2014 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
2015 if (cmd->indirect_syms == NULL)
2016 return -1;
2017
2018 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2019 return -1;
2020
2021 for (i = 0; i < cmd->nindirectsyms; i++)
2022 {
2023 unsigned int *is = &cmd->indirect_syms[i];
2024
2025 if (bfd_bread ((PTR) buf, 4, abfd) != 4)
2026 return -1;
2027
2028 *is = bfd_h_get_32 (abfd, buf + 0);
2029 }
2030 }
2031
2032 if (cmd->nextrefsyms != 0)
2033 {
2034 char buf[4];
2035 unsigned long v;
2036 unsigned int i;
2037
2038 cmd->ext_refs = bfd_alloc
2039 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
2040 if (cmd->ext_refs == NULL)
2041 return -1;
2042
2043 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2044 return -1;
2045
2046 for (i = 0; i < cmd->nextrefsyms; i++)
2047 {
2048 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2049
2050 if (bfd_bread ((PTR) buf, 4, abfd) != 4)
2051 return -1;
2052
2053 v = bfd_h_get_32 (abfd, buf + 0);
2054 ref->isym = (v >> 8) & 0xffffff;
2055 ref->flags = v & 0xff;
2056 }
2057 }
2058
2059 return 0;
2060 }
2061
2062 static int
2063 bfd_mach_o_scan_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
2064 {
2065 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
2066 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2067 unsigned char buf[16];
2068
2069 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
2070
2071 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2072 || bfd_bread ((PTR) buf, 16, abfd) != 16)
2073 return -1;
2074
2075 symtab->symoff = bfd_h_get_32 (abfd, buf);
2076 symtab->nsyms = bfd_h_get_32 (abfd, buf + 4);
2077 symtab->stroff = bfd_h_get_32 (abfd, buf + 8);
2078 symtab->strsize = bfd_h_get_32 (abfd, buf + 12);
2079 symtab->symbols = NULL;
2080 symtab->strtab = NULL;
2081
2082 if (symtab->nsyms != 0)
2083 abfd->flags |= HAS_SYMS;
2084
2085 if (mdata->symtab)
2086 return -1;
2087 mdata->symtab = symtab;
2088 return 0;
2089 }
2090
2091 static int
2092 bfd_mach_o_scan_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
2093 {
2094 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
2095 asection *bfdsec;
2096 char *sname;
2097 static const char prefix[] = "LC_UUID";
2098
2099 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
2100
2101 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2102 || bfd_bread ((PTR) cmd->uuid, 16, abfd) != 16)
2103 return -1;
2104
2105 sname = bfd_alloc (abfd, strlen (prefix) + 1);
2106 if (sname == NULL)
2107 return -1;
2108 strcpy (sname, prefix);
2109
2110 bfdsec = bfd_make_section_anyway_with_flags (abfd, sname, SEC_HAS_CONTENTS);
2111 if (bfdsec == NULL)
2112 return -1;
2113
2114 bfdsec->vma = 0;
2115 bfdsec->lma = 0;
2116 bfdsec->size = command->len - 8;
2117 bfdsec->filepos = command->offset + 8;
2118 bfdsec->alignment_power = 0;
2119
2120 cmd->section = bfdsec;
2121
2122 return 0;
2123 }
2124
2125 static int
2126 bfd_mach_o_scan_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
2127 {
2128 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
2129 char buf[8];
2130
2131 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2132 || bfd_bread ((PTR) buf, 8, abfd) != 8)
2133 return -1;
2134
2135 cmd->dataoff = bfd_get_32 (abfd, buf + 0);
2136 cmd->datasize = bfd_get_32 (abfd, buf + 4);
2137 return 0;
2138 }
2139
2140 static int
2141 bfd_mach_o_scan_read_str (bfd *abfd, bfd_mach_o_load_command *command)
2142 {
2143 bfd_mach_o_str_command *cmd = &command->command.str;
2144 char buf[8];
2145 unsigned long off;
2146
2147 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2148 || bfd_bread ((PTR) buf, 4, abfd) != 4)
2149 return -1;
2150
2151 off = bfd_get_32 (abfd, buf + 0);
2152 cmd->stroff = command->offset + off;
2153 cmd->str_len = command->len - off;
2154 cmd->str = bfd_alloc (abfd, cmd->str_len);
2155 if (cmd->str == NULL)
2156 return -1;
2157 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
2158 || bfd_bread ((PTR) cmd->str, cmd->str_len, abfd) != cmd->str_len)
2159 return -1;
2160 return 0;
2161 }
2162
2163 static int
2164 bfd_mach_o_scan_read_segment (bfd *abfd,
2165 bfd_mach_o_load_command *command,
2166 unsigned int wide)
2167 {
2168 unsigned char buf[64];
2169 bfd_mach_o_segment_command *seg = &command->command.segment;
2170 unsigned long i;
2171
2172 if (wide)
2173 {
2174 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
2175
2176 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2177 || bfd_bread ((PTR) buf, 64, abfd) != 64)
2178 return -1;
2179
2180 memcpy (seg->segname, buf, 16);
2181 seg->segname[16] = '\0';
2182
2183 seg->vmaddr = bfd_h_get_64 (abfd, buf + 16);
2184 seg->vmsize = bfd_h_get_64 (abfd, buf + 24);
2185 seg->fileoff = bfd_h_get_64 (abfd, buf + 32);
2186 seg->filesize = bfd_h_get_64 (abfd, buf + 40);
2187 seg->maxprot = bfd_h_get_32 (abfd, buf + 48);
2188 seg->initprot = bfd_h_get_32 (abfd, buf + 52);
2189 seg->nsects = bfd_h_get_32 (abfd, buf + 56);
2190 seg->flags = bfd_h_get_32 (abfd, buf + 60);
2191 }
2192 else
2193 {
2194 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
2195
2196 if (bfd_seek (abfd, command->offset + 8, SEEK_SET) != 0
2197 || bfd_bread ((PTR) buf, 48, abfd) != 48)
2198 return -1;
2199
2200 memcpy (seg->segname, buf, 16);
2201 seg->segname[16] = '\0';
2202
2203 seg->vmaddr = bfd_h_get_32 (abfd, buf + 16);
2204 seg->vmsize = bfd_h_get_32 (abfd, buf + 20);
2205 seg->fileoff = bfd_h_get_32 (abfd, buf + 24);
2206 seg->filesize = bfd_h_get_32 (abfd, buf + 28);
2207 seg->maxprot = bfd_h_get_32 (abfd, buf + 32);
2208 seg->initprot = bfd_h_get_32 (abfd, buf + 36);
2209 seg->nsects = bfd_h_get_32 (abfd, buf + 40);
2210 seg->flags = bfd_h_get_32 (abfd, buf + 44);
2211 }
2212
2213 if (seg->nsects != 0)
2214 {
2215 seg->sections = bfd_alloc (abfd, seg->nsects
2216 * sizeof (bfd_mach_o_section));
2217 if (seg->sections == NULL)
2218 return -1;
2219
2220 for (i = 0; i < seg->nsects; i++)
2221 {
2222 bfd_vma segoff;
2223 if (wide)
2224 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
2225 + (i * BFD_MACH_O_SECTION_64_SIZE);
2226 else
2227 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
2228 + (i * BFD_MACH_O_SECTION_SIZE);
2229
2230 if (bfd_mach_o_scan_read_section
2231 (abfd, &seg->sections[i], segoff, seg->initprot, wide) != 0)
2232 return -1;
2233 }
2234 }
2235
2236 return 0;
2237 }
2238
2239 static int
2240 bfd_mach_o_scan_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
2241 {
2242 return bfd_mach_o_scan_read_segment (abfd, command, 0);
2243 }
2244
2245 static int
2246 bfd_mach_o_scan_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
2247 {
2248 return bfd_mach_o_scan_read_segment (abfd, command, 1);
2249 }
2250
2251 static int
2252 bfd_mach_o_scan_read_command (bfd *abfd, bfd_mach_o_load_command *command)
2253 {
2254 unsigned char buf[8];
2255
2256 /* Read command type and length. */
2257 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
2258 || bfd_bread ((PTR) buf, 8, abfd) != 8)
2259 return -1;
2260
2261 command->type = bfd_h_get_32 (abfd, buf) & ~BFD_MACH_O_LC_REQ_DYLD;
2262 command->type_required = (bfd_h_get_32 (abfd, buf) & BFD_MACH_O_LC_REQ_DYLD
2263 ? TRUE : FALSE);
2264 command->len = bfd_h_get_32 (abfd, buf + 4);
2265
2266 switch (command->type)
2267 {
2268 case BFD_MACH_O_LC_SEGMENT:
2269 if (bfd_mach_o_scan_read_segment_32 (abfd, command) != 0)
2270 return -1;
2271 break;
2272 case BFD_MACH_O_LC_SEGMENT_64:
2273 if (bfd_mach_o_scan_read_segment_64 (abfd, command) != 0)
2274 return -1;
2275 break;
2276 case BFD_MACH_O_LC_SYMTAB:
2277 if (bfd_mach_o_scan_read_symtab (abfd, command) != 0)
2278 return -1;
2279 break;
2280 case BFD_MACH_O_LC_SYMSEG:
2281 break;
2282 case BFD_MACH_O_LC_THREAD:
2283 case BFD_MACH_O_LC_UNIXTHREAD:
2284 if (bfd_mach_o_scan_read_thread (abfd, command) != 0)
2285 return -1;
2286 break;
2287 case BFD_MACH_O_LC_LOAD_DYLINKER:
2288 case BFD_MACH_O_LC_ID_DYLINKER:
2289 if (bfd_mach_o_scan_read_dylinker (abfd, command) != 0)
2290 return -1;
2291 break;
2292 case BFD_MACH_O_LC_LOAD_DYLIB:
2293 case BFD_MACH_O_LC_ID_DYLIB:
2294 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
2295 case BFD_MACH_O_LC_REEXPORT_DYLIB:
2296 if (bfd_mach_o_scan_read_dylib (abfd, command) != 0)
2297 return -1;
2298 break;
2299 case BFD_MACH_O_LC_PREBOUND_DYLIB:
2300 if (bfd_mach_o_scan_read_prebound_dylib (abfd, command) != 0)
2301 return -1;
2302 break;
2303 case BFD_MACH_O_LC_LOADFVMLIB:
2304 case BFD_MACH_O_LC_IDFVMLIB:
2305 case BFD_MACH_O_LC_IDENT:
2306 case BFD_MACH_O_LC_FVMFILE:
2307 case BFD_MACH_O_LC_PREPAGE:
2308 case BFD_MACH_O_LC_ROUTINES:
2309 break;
2310 case BFD_MACH_O_LC_SUB_FRAMEWORK:
2311 case BFD_MACH_O_LC_SUB_UMBRELLA:
2312 case BFD_MACH_O_LC_SUB_LIBRARY:
2313 case BFD_MACH_O_LC_SUB_CLIENT:
2314 if (bfd_mach_o_scan_read_str (abfd, command) != 0)
2315 return -1;
2316 break;
2317 case BFD_MACH_O_LC_DYSYMTAB:
2318 if (bfd_mach_o_scan_read_dysymtab (abfd, command) != 0)
2319 return -1;
2320 break;
2321 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
2322 case BFD_MACH_O_LC_PREBIND_CKSUM:
2323 break;
2324 case BFD_MACH_O_LC_UUID:
2325 if (bfd_mach_o_scan_read_uuid (abfd, command) != 0)
2326 return -1;
2327 break;
2328 case BFD_MACH_O_LC_CODE_SIGNATURE:
2329 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
2330 if (bfd_mach_o_scan_read_linkedit (abfd, command) != 0)
2331 return -1;
2332 break;
2333 default:
2334 fprintf (stderr, "unable to read unknown load command 0x%lx\n",
2335 (unsigned long) command->type);
2336 break;
2337 }
2338
2339 return 0;
2340 }
2341
2342 static void
2343 bfd_mach_o_flatten_sections (bfd *abfd)
2344 {
2345 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2346 long csect = 0;
2347 unsigned long i, j;
2348
2349 /* Count total number of sections. */
2350 mdata->nsects = 0;
2351
2352 for (i = 0; i < mdata->header.ncmds; i++)
2353 {
2354 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
2355 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
2356 {
2357 bfd_mach_o_segment_command *seg;
2358
2359 seg = &mdata->commands[i].command.segment;
2360 mdata->nsects += seg->nsects;
2361 }
2362 }
2363
2364 /* Allocate sections array. */
2365 mdata->sections = bfd_alloc (abfd,
2366 mdata->nsects * sizeof (bfd_mach_o_section *));
2367
2368 /* Fill the array. */
2369 csect = 0;
2370
2371 for (i = 0; i < mdata->header.ncmds; i++)
2372 {
2373 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
2374 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
2375 {
2376 bfd_mach_o_segment_command *seg;
2377
2378 seg = &mdata->commands[i].command.segment;
2379 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
2380
2381 for (j = 0; j < seg->nsects; j++)
2382 mdata->sections[csect++] = &seg->sections[j];
2383 }
2384 }
2385 }
2386
2387 int
2388 bfd_mach_o_scan_start_address (bfd *abfd)
2389 {
2390 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2391 bfd_mach_o_thread_command *cmd = NULL;
2392 unsigned long i;
2393
2394 for (i = 0; i < mdata->header.ncmds; i++)
2395 {
2396 if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) ||
2397 (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD))
2398 {
2399 if (cmd == NULL)
2400 cmd = &mdata->commands[i].command.thread;
2401 else
2402 return 0;
2403 }
2404 }
2405
2406 if (cmd == NULL)
2407 return 0;
2408
2409 for (i = 0; i < cmd->nflavours; i++)
2410 {
2411 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
2412 && (cmd->flavours[i].flavour
2413 == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32))
2414 {
2415 unsigned char buf[4];
2416
2417 if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0
2418 || bfd_bread (buf, 4, abfd) != 4)
2419 return -1;
2420
2421 abfd->start_address = bfd_h_get_32 (abfd, buf);
2422 }
2423 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
2424 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
2425 {
2426 unsigned char buf[4];
2427
2428 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
2429 || bfd_bread (buf, 4, abfd) != 4)
2430 return -1;
2431
2432 abfd->start_address = bfd_h_get_32 (abfd, buf);
2433 }
2434 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
2435 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE_64))
2436 {
2437 unsigned char buf[8];
2438
2439 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
2440 || bfd_bread (buf, 8, abfd) != 8)
2441 return -1;
2442
2443 abfd->start_address = bfd_h_get_64 (abfd, buf);
2444 }
2445 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
2446 && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
2447 {
2448 unsigned char buf[8];
2449
2450 if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0
2451 || bfd_bread (buf, 8, abfd) != 8)
2452 return -1;
2453
2454 abfd->start_address = bfd_h_get_64 (abfd, buf);
2455 }
2456 }
2457
2458 return 0;
2459 }
2460
2461 int
2462 bfd_mach_o_scan (bfd *abfd,
2463 bfd_mach_o_header *header,
2464 bfd_mach_o_data_struct *mdata)
2465 {
2466 unsigned int i;
2467 enum bfd_architecture cputype;
2468 unsigned long cpusubtype;
2469 unsigned int hdrsize;
2470
2471 hdrsize = mach_o_wide_p (header) ?
2472 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2473
2474 mdata->header = *header;
2475
2476 abfd->flags = abfd->flags & BFD_IN_MEMORY;
2477 switch (header->filetype)
2478 {
2479 case BFD_MACH_O_MH_OBJECT:
2480 abfd->flags |= HAS_RELOC;
2481 break;
2482 case BFD_MACH_O_MH_EXECUTE:
2483 abfd->flags |= EXEC_P;
2484 break;
2485 case BFD_MACH_O_MH_DYLIB:
2486 case BFD_MACH_O_MH_BUNDLE:
2487 abfd->flags |= DYNAMIC;
2488 break;
2489 }
2490
2491 abfd->tdata.mach_o_data = mdata;
2492
2493 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
2494 &cputype, &cpusubtype);
2495 if (cputype == bfd_arch_unknown)
2496 {
2497 fprintf (stderr, "bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx\n",
2498 header->cputype, header->cpusubtype);
2499 return -1;
2500 }
2501
2502 bfd_set_arch_mach (abfd, cputype, cpusubtype);
2503
2504 if (header->ncmds != 0)
2505 {
2506 mdata->commands = bfd_alloc
2507 (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
2508 if (mdata->commands == NULL)
2509 return -1;
2510
2511 for (i = 0; i < header->ncmds; i++)
2512 {
2513 bfd_mach_o_load_command *cur = &mdata->commands[i];
2514
2515 if (i == 0)
2516 cur->offset = hdrsize;
2517 else
2518 {
2519 bfd_mach_o_load_command *prev = &mdata->commands[i - 1];
2520 cur->offset = prev->offset + prev->len;
2521 }
2522
2523 if (bfd_mach_o_scan_read_command (abfd, cur) < 0)
2524 return -1;
2525 }
2526 }
2527
2528 if (bfd_mach_o_scan_start_address (abfd) < 0)
2529 return -1;
2530
2531 bfd_mach_o_flatten_sections (abfd);
2532 return 0;
2533 }
2534
2535 bfd_boolean
2536 bfd_mach_o_mkobject_init (bfd *abfd)
2537 {
2538 bfd_mach_o_data_struct *mdata = NULL;
2539
2540 mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct));
2541 if (mdata == NULL)
2542 return FALSE;
2543 abfd->tdata.mach_o_data = mdata;
2544
2545 mdata->header.magic = 0;
2546 mdata->header.cputype = 0;
2547 mdata->header.cpusubtype = 0;
2548 mdata->header.filetype = 0;
2549 mdata->header.ncmds = 0;
2550 mdata->header.sizeofcmds = 0;
2551 mdata->header.flags = 0;
2552 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
2553 mdata->commands = NULL;
2554 mdata->nsects = 0;
2555 mdata->sections = NULL;
2556
2557 return TRUE;
2558 }
2559
2560 const bfd_target *
2561 bfd_mach_o_header_p (bfd *abfd,
2562 bfd_mach_o_filetype filetype,
2563 bfd_mach_o_cpu_type cputype)
2564 {
2565 struct bfd_preserve preserve;
2566 bfd_mach_o_header header;
2567
2568 preserve.marker = NULL;
2569 if (!bfd_mach_o_read_header (abfd, &header))
2570 goto wrong;
2571
2572 if (! (header.byteorder == BFD_ENDIAN_BIG
2573 || header.byteorder == BFD_ENDIAN_LITTLE))
2574 {
2575 fprintf (stderr, "unknown header byte-order value 0x%lx\n",
2576 (unsigned long) header.byteorder);
2577 goto wrong;
2578 }
2579
2580 if (! ((header.byteorder == BFD_ENDIAN_BIG
2581 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
2582 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
2583 || (header.byteorder == BFD_ENDIAN_LITTLE
2584 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
2585 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
2586 goto wrong;
2587
2588 /* Check cputype and filetype.
2589 In case of wildcard, do not accept magics that are handled by existing
2590 targets. */
2591 if (cputype)
2592 {
2593 if (header.cputype != cputype)
2594 goto wrong;
2595 }
2596 else
2597 {
2598 switch (header.cputype)
2599 {
2600 case BFD_MACH_O_CPU_TYPE_I386:
2601 /* Handled by mach-o-i386 */
2602 goto wrong;
2603 default:
2604 break;
2605 }
2606 }
2607 if (filetype)
2608 {
2609 if (header.filetype != filetype)
2610 goto wrong;
2611 }
2612 else
2613 {
2614 switch (header.filetype)
2615 {
2616 case BFD_MACH_O_MH_CORE:
2617 /* Handled by core_p */
2618 goto wrong;
2619 default:
2620 break;
2621 }
2622 }
2623
2624 preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
2625 if (preserve.marker == NULL
2626 || !bfd_preserve_save (abfd, &preserve))
2627 goto fail;
2628
2629 if (bfd_mach_o_scan (abfd, &header,
2630 (bfd_mach_o_data_struct *) preserve.marker) != 0)
2631 goto wrong;
2632
2633 bfd_preserve_finish (abfd, &preserve);
2634 return abfd->xvec;
2635
2636 wrong:
2637 bfd_set_error (bfd_error_wrong_format);
2638
2639 fail:
2640 if (preserve.marker != NULL)
2641 bfd_preserve_restore (abfd, &preserve);
2642 return NULL;
2643 }
2644
2645 static const bfd_target *
2646 bfd_mach_o_gen_object_p (bfd *abfd)
2647 {
2648 return bfd_mach_o_header_p (abfd, 0, 0);
2649 }
2650
2651 static const bfd_target *
2652 bfd_mach_o_gen_core_p (bfd *abfd)
2653 {
2654 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
2655 }
2656
2657 typedef struct mach_o_fat_archentry
2658 {
2659 unsigned long cputype;
2660 unsigned long cpusubtype;
2661 unsigned long offset;
2662 unsigned long size;
2663 unsigned long align;
2664 } mach_o_fat_archentry;
2665
2666 typedef struct mach_o_fat_data_struct
2667 {
2668 unsigned long magic;
2669 unsigned long nfat_arch;
2670 mach_o_fat_archentry *archentries;
2671 } mach_o_fat_data_struct;
2672
2673 const bfd_target *
2674 bfd_mach_o_archive_p (bfd *abfd)
2675 {
2676 mach_o_fat_data_struct *adata = NULL;
2677 unsigned char buf[20];
2678 unsigned long i;
2679
2680 if (bfd_seek (abfd, 0, SEEK_SET) != 0
2681 || bfd_bread ((PTR) buf, 8, abfd) != 8)
2682 goto error;
2683
2684 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
2685 if (adata == NULL)
2686 goto error;
2687
2688 adata->magic = bfd_getb32 (buf);
2689 adata->nfat_arch = bfd_getb32 (buf + 4);
2690 if (adata->magic != 0xcafebabe)
2691 goto error;
2692 /* Avoid matching Java bytecode files, which have the same magic number.
2693 In the Java bytecode file format this field contains the JVM version,
2694 which starts at 43.0. */
2695 if (adata->nfat_arch > 30)
2696 goto error;
2697
2698 adata->archentries =
2699 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
2700 if (adata->archentries == NULL)
2701 goto error;
2702
2703 for (i = 0; i < adata->nfat_arch; i++)
2704 {
2705 if (bfd_seek (abfd, 8 + 20 * i, SEEK_SET) != 0
2706 || bfd_bread ((PTR) buf, 20, abfd) != 20)
2707 goto error;
2708 adata->archentries[i].cputype = bfd_getb32 (buf);
2709 adata->archentries[i].cpusubtype = bfd_getb32 (buf + 4);
2710 adata->archentries[i].offset = bfd_getb32 (buf + 8);
2711 adata->archentries[i].size = bfd_getb32 (buf + 12);
2712 adata->archentries[i].align = bfd_getb32 (buf + 16);
2713 }
2714
2715 abfd->tdata.mach_o_fat_data = adata;
2716 return abfd->xvec;
2717
2718 error:
2719 if (adata != NULL)
2720 bfd_release (abfd, adata);
2721 bfd_set_error (bfd_error_wrong_format);
2722 return NULL;
2723 }
2724
2725 bfd *
2726 bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
2727 {
2728 mach_o_fat_data_struct *adata;
2729 mach_o_fat_archentry *entry = NULL;
2730 unsigned long i;
2731 bfd *nbfd;
2732 enum bfd_architecture arch_type;
2733 unsigned long arch_subtype;
2734
2735 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
2736 BFD_ASSERT (adata != NULL);
2737
2738 /* Find index of previous entry. */
2739 if (prev == NULL)
2740 i = 0; /* Start at first one. */
2741 else
2742 {
2743 for (i = 0; i < adata->nfat_arch; i++)
2744 {
2745 if (adata->archentries[i].offset == prev->origin)
2746 break;
2747 }
2748
2749 if (i == adata->nfat_arch)
2750 {
2751 /* Not found. */
2752 bfd_set_error (bfd_error_bad_value);
2753 return NULL;
2754 }
2755 i++; /* Get next entry. */
2756 }
2757
2758 if (i >= adata->nfat_arch)
2759 {
2760 bfd_set_error (bfd_error_no_more_archived_files);
2761 return NULL;
2762 }
2763
2764 entry = &adata->archentries[i];
2765 nbfd = _bfd_new_bfd_contained_in (archive);
2766 if (nbfd == NULL)
2767 return NULL;
2768
2769 nbfd->origin = entry->offset;
2770
2771 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
2772 &arch_type, &arch_subtype);
2773 /* Create the member filename.
2774 Use FILENAME:ARCH_NAME. */
2775 {
2776 char *s = NULL;
2777 const char *arch_name;
2778 size_t arch_file_len = strlen (bfd_get_filename (archive));
2779
2780 arch_name = bfd_printable_arch_mach (arch_type, arch_subtype);
2781 s = bfd_malloc (arch_file_len + 1 + strlen (arch_name) + 1);
2782 if (s == NULL)
2783 return NULL;
2784 memcpy (s, bfd_get_filename (archive), arch_file_len);
2785 s[arch_file_len] = ':';
2786 strcpy (s + arch_file_len + 1, arch_name);
2787 nbfd->filename = s;
2788 }
2789 nbfd->iostream = NULL;
2790 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
2791
2792 return nbfd;
2793 }
2794
2795 /* If ABFD format is FORMAT and architecture is ARCH, return it.
2796 If ABFD is a fat image containing a member that corresponds to FORMAT
2797 and ARCH, returns it.
2798 In other case, returns NULL.
2799 This function allows transparent uses of fat images. */
2800 bfd *
2801 bfd_mach_o_fat_extract (bfd *abfd,
2802 bfd_format format,
2803 const bfd_arch_info_type *arch)
2804 {
2805 bfd *res;
2806 mach_o_fat_data_struct *adata;
2807 unsigned int i;
2808
2809 if (bfd_check_format (abfd, format))
2810 {
2811 if (bfd_get_arch_info (abfd) == arch)
2812 return abfd;
2813 return NULL;
2814 }
2815 if (!bfd_check_format (abfd, bfd_archive)
2816 || abfd->xvec != &mach_o_fat_vec)
2817 return NULL;
2818
2819 /* This is a Mach-O fat image. */
2820 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
2821 BFD_ASSERT (adata != NULL);
2822
2823 for (i = 0; i < adata->nfat_arch; i++)
2824 {
2825 struct mach_o_fat_archentry *e = &adata->archentries[i];
2826 enum bfd_architecture cpu_type;
2827 unsigned long cpu_subtype;
2828
2829 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
2830 &cpu_type, &cpu_subtype);
2831 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
2832 continue;
2833
2834 /* The architecture is found. */
2835 res = _bfd_new_bfd_contained_in (abfd);
2836 if (res == NULL)
2837 return NULL;
2838
2839 res->origin = e->offset;
2840
2841 res->filename = strdup (abfd->filename);
2842 res->iostream = NULL;
2843
2844 if (bfd_check_format (res, format))
2845 {
2846 BFD_ASSERT (bfd_get_arch_info (res) == arch);
2847 return res;
2848 }
2849 bfd_close (res);
2850 return NULL;
2851 }
2852
2853 return NULL;
2854 }
2855
2856 int
2857 bfd_mach_o_lookup_section (bfd *abfd,
2858 asection *section,
2859 bfd_mach_o_load_command **mcommand,
2860 bfd_mach_o_section **msection)
2861 {
2862 struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd);
2863 unsigned int i, j, num;
2864
2865 bfd_mach_o_load_command *ncmd = NULL;
2866 bfd_mach_o_section *nsect = NULL;
2867
2868 BFD_ASSERT (mcommand != NULL);
2869 BFD_ASSERT (msection != NULL);
2870
2871 num = 0;
2872 for (i = 0; i < md->header.ncmds; i++)
2873 {
2874 struct bfd_mach_o_load_command *cmd = &md->commands[i];
2875 struct bfd_mach_o_segment_command *seg = NULL;
2876
2877 if (cmd->type != BFD_MACH_O_LC_SEGMENT
2878 || cmd->type != BFD_MACH_O_LC_SEGMENT_64)
2879 continue;
2880 seg = &cmd->command.segment;
2881
2882 if (seg->segment == section)
2883 {
2884 if (num == 0)
2885 ncmd = cmd;
2886 num++;
2887 }
2888
2889 for (j = 0; j < seg->nsects; j++)
2890 {
2891 struct bfd_mach_o_section *sect = &seg->sections[j];
2892
2893 if (sect->bfdsection == section)
2894 {
2895 if (num == 0)
2896 nsect = sect;
2897 num++;
2898 }
2899 }
2900 }
2901
2902 *mcommand = ncmd;
2903 *msection = nsect;
2904 return num;
2905 }
2906
2907 int
2908 bfd_mach_o_lookup_command (bfd *abfd,
2909 bfd_mach_o_load_command_type type,
2910 bfd_mach_o_load_command **mcommand)
2911 {
2912 struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd);
2913 bfd_mach_o_load_command *ncmd = NULL;
2914 unsigned int i, num;
2915
2916 BFD_ASSERT (md != NULL);
2917 BFD_ASSERT (mcommand != NULL);
2918
2919 num = 0;
2920 for (i = 0; i < md->header.ncmds; i++)
2921 {
2922 struct bfd_mach_o_load_command *cmd = &md->commands[i];
2923
2924 if (cmd->type != type)
2925 continue;
2926
2927 if (num == 0)
2928 ncmd = cmd;
2929 num++;
2930 }
2931
2932 *mcommand = ncmd;
2933 return num;
2934 }
2935
2936 unsigned long
2937 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
2938 {
2939 switch (type)
2940 {
2941 case BFD_MACH_O_CPU_TYPE_MC680x0:
2942 return 0x04000000;
2943 case BFD_MACH_O_CPU_TYPE_MC88000:
2944 return 0xffffe000;
2945 case BFD_MACH_O_CPU_TYPE_POWERPC:
2946 return 0xc0000000;
2947 case BFD_MACH_O_CPU_TYPE_I386:
2948 return 0xc0000000;
2949 case BFD_MACH_O_CPU_TYPE_SPARC:
2950 return 0xf0000000;
2951 case BFD_MACH_O_CPU_TYPE_I860:
2952 return 0;
2953 case BFD_MACH_O_CPU_TYPE_HPPA:
2954 return 0xc0000000 - 0x04000000;
2955 default:
2956 return 0;
2957 }
2958 }
2959
2960 typedef struct bfd_mach_o_xlat_name
2961 {
2962 const char *name;
2963 unsigned long val;
2964 }
2965 bfd_mach_o_xlat_name;
2966
2967 static void
2968 bfd_mach_o_print_flags (const bfd_mach_o_xlat_name *table,
2969 unsigned long val,
2970 FILE *file)
2971 {
2972 int first = 1;
2973
2974 for (; table->name; table++)
2975 {
2976 if (table->val & val)
2977 {
2978 if (!first)
2979 fprintf (file, "+");
2980 fprintf (file, "%s", table->name);
2981 val &= ~table->val;
2982 first = 0;
2983 }
2984 }
2985 if (val)
2986 {
2987 if (!first)
2988 fprintf (file, "+");
2989 fprintf (file, "0x%lx", val);
2990 return;
2991 }
2992 if (first)
2993 fprintf (file, "-");
2994 }
2995
2996 static const char *
2997 bfd_mach_o_get_name (const bfd_mach_o_xlat_name *table, unsigned long val)
2998 {
2999 for (; table->name; table++)
3000 if (table->val == val)
3001 return table->name;
3002 return "*UNKNOWN*";
3003 }
3004
3005 static bfd_mach_o_xlat_name bfd_mach_o_cpu_name[] =
3006 {
3007 { "vax", BFD_MACH_O_CPU_TYPE_VAX},
3008 { "mc680x0", BFD_MACH_O_CPU_TYPE_MC680x0},
3009 { "i386", BFD_MACH_O_CPU_TYPE_I386},
3010 { "mips", BFD_MACH_O_CPU_TYPE_MIPS},
3011 { "mc98000", BFD_MACH_O_CPU_TYPE_MC98000},
3012 { "hppa", BFD_MACH_O_CPU_TYPE_HPPA},
3013 { "arm", BFD_MACH_O_CPU_TYPE_ARM},
3014 { "mc88000", BFD_MACH_O_CPU_TYPE_MC88000},
3015 { "sparc", BFD_MACH_O_CPU_TYPE_SPARC},
3016 { "i860", BFD_MACH_O_CPU_TYPE_I860},
3017 { "alpha", BFD_MACH_O_CPU_TYPE_ALPHA},
3018 { "powerpc", BFD_MACH_O_CPU_TYPE_POWERPC},
3019 { "powerpc_64", BFD_MACH_O_CPU_TYPE_POWERPC_64},
3020 { "x86_64", BFD_MACH_O_CPU_TYPE_X86_64},
3021 { NULL, 0}
3022 };
3023
3024 static bfd_mach_o_xlat_name bfd_mach_o_filetype_name[] =
3025 {
3026 { "object", BFD_MACH_O_MH_OBJECT},
3027 { "execute", BFD_MACH_O_MH_EXECUTE},
3028 { "fvmlib", BFD_MACH_O_MH_FVMLIB},
3029 { "core", BFD_MACH_O_MH_CORE},
3030 { "preload", BFD_MACH_O_MH_PRELOAD},
3031 { "dylib", BFD_MACH_O_MH_DYLIB},
3032 { "dylinker", BFD_MACH_O_MH_DYLINKER},
3033 { "bundle", BFD_MACH_O_MH_BUNDLE},
3034 { NULL, 0}
3035 };
3036
3037 static bfd_mach_o_xlat_name bfd_mach_o_header_flags_name[] =
3038 {
3039 { "noundefs", BFD_MACH_O_MH_NOUNDEFS },
3040 { "incrlink", BFD_MACH_O_MH_INCRLINK },
3041 { "dyldlink", BFD_MACH_O_MH_DYLDLINK },
3042 { "bindatload", BFD_MACH_O_MH_BINDATLOAD },
3043 { "prebound", BFD_MACH_O_MH_PREBOUND },
3044 { "split_segs", BFD_MACH_O_MH_SPLIT_SEGS },
3045 { "lazy_init", BFD_MACH_O_MH_LAZY_INIT },
3046 { "twolevel", BFD_MACH_O_MH_TWOLEVEL },
3047 { "force_flat", BFD_MACH_O_MH_FORCE_FLAT },
3048 { "nomultidefs", BFD_MACH_O_MH_NOMULTIDEFS },
3049 { "nofixprebinding", BFD_MACH_O_MH_NOFIXPREBINDING },
3050 { "prebindable", BFD_MACH_O_MH_PREBINDABLE },
3051 { "allmodsbound", BFD_MACH_O_MH_ALLMODSBOUND },
3052 { "subsections_via_symbols", BFD_MACH_O_MH_SUBSECTIONS_VIA_SYMBOLS },
3053 { "canonical", BFD_MACH_O_MH_CANONICAL },
3054 { "weak_defines", BFD_MACH_O_MH_WEAK_DEFINES },
3055 { "binds_to_weak", BFD_MACH_O_MH_BINDS_TO_WEAK },
3056 { "allow_stack_execution", BFD_MACH_O_MH_ALLOW_STACK_EXECUTION },
3057 { "root_safe", BFD_MACH_O_MH_ROOT_SAFE },
3058 { "setuid_safe", BFD_MACH_O_MH_SETUID_SAFE },
3059 { "no_reexported_dylibs", BFD_MACH_O_MH_NO_REEXPORTED_DYLIBS },
3060 { "pie", BFD_MACH_O_MH_PIE },
3061 { NULL, 0}
3062 };
3063
3064 static bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
3065 {
3066 { "regular", BFD_MACH_O_S_REGULAR},
3067 { "zerofill", BFD_MACH_O_S_ZEROFILL},
3068 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
3069 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
3070 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
3071 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
3072 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
3073 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
3074 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
3075 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
3076 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
3077 { "coalesced", BFD_MACH_O_S_COALESCED},
3078 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
3079 { "interposing", BFD_MACH_O_S_INTERPOSING},
3080 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
3081 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
3082 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
3083 { NULL, 0}
3084 };
3085
3086 static bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
3087 {
3088 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
3089 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
3090 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
3091 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
3092 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
3093 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
3094 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
3095 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
3096 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
3097 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
3098 { NULL, 0}
3099 };
3100
3101 static bfd_mach_o_xlat_name bfd_mach_o_load_command_name[] =
3102 {
3103 { "segment", BFD_MACH_O_LC_SEGMENT},
3104 { "symtab", BFD_MACH_O_LC_SYMTAB},
3105 { "symseg", BFD_MACH_O_LC_SYMSEG},
3106 { "thread", BFD_MACH_O_LC_THREAD},
3107 { "unixthread", BFD_MACH_O_LC_UNIXTHREAD},
3108 { "loadfvmlib", BFD_MACH_O_LC_LOADFVMLIB},
3109 { "idfvmlib", BFD_MACH_O_LC_IDFVMLIB},
3110 { "ident", BFD_MACH_O_LC_IDENT},
3111 { "fvmfile", BFD_MACH_O_LC_FVMFILE},
3112 { "prepage", BFD_MACH_O_LC_PREPAGE},
3113 { "dysymtab", BFD_MACH_O_LC_DYSYMTAB},
3114 { "load_dylib", BFD_MACH_O_LC_LOAD_DYLIB},
3115 { "id_dylib", BFD_MACH_O_LC_ID_DYLIB},
3116 { "load_dylinker", BFD_MACH_O_LC_LOAD_DYLINKER},
3117 { "id_dylinker", BFD_MACH_O_LC_ID_DYLINKER},
3118 { "prebound_dylib", BFD_MACH_O_LC_PREBOUND_DYLIB},
3119 { "routines", BFD_MACH_O_LC_ROUTINES},
3120 { "sub_framework", BFD_MACH_O_LC_SUB_FRAMEWORK},
3121 { "sub_umbrella", BFD_MACH_O_LC_SUB_UMBRELLA},
3122 { "sub_client", BFD_MACH_O_LC_SUB_CLIENT},
3123 { "sub_library", BFD_MACH_O_LC_SUB_LIBRARY},
3124 { "twolevel_hints", BFD_MACH_O_LC_TWOLEVEL_HINTS},
3125 { "prebind_cksum", BFD_MACH_O_LC_PREBIND_CKSUM},
3126 { "load_weak_dylib", BFD_MACH_O_LC_LOAD_WEAK_DYLIB},
3127 { "segment_64", BFD_MACH_O_LC_SEGMENT_64},
3128 { "routines_64", BFD_MACH_O_LC_ROUTINES_64},
3129 { "uuid", BFD_MACH_O_LC_UUID},
3130 { "rpath", BFD_MACH_O_LC_RPATH},
3131 { "code_signature", BFD_MACH_O_LC_CODE_SIGNATURE},
3132 { "segment_split_info", BFD_MACH_O_LC_SEGMENT_SPLIT_INFO},
3133 { "reexport_dylib", BFD_MACH_O_LC_REEXPORT_DYLIB},
3134 { "lazy_load_dylib", BFD_MACH_O_LC_LAZY_LOAD_DYLIB},
3135 { "encryption_info", BFD_MACH_O_LC_ENCRYPTION_INFO},
3136 { NULL, 0}
3137 };
3138
3139 static void
3140 bfd_mach_o_print_private_header (bfd *abfd, FILE *file)
3141 {
3142 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3143 bfd_mach_o_header *h = &mdata->header;
3144
3145 fprintf (file, _("Mach-O header:\n"));
3146 fprintf (file, _(" magic : %08lx\n"), h->magic);
3147 fprintf (file, _(" cputype : %08lx (%s)\n"), h->cputype,
3148 bfd_mach_o_get_name (bfd_mach_o_cpu_name, h->cputype));
3149 fprintf (file, _(" cpusubtype: %08lx\n"), h->cpusubtype);
3150 fprintf (file, _(" filetype : %08lx (%s)\n"),
3151 h->filetype,
3152 bfd_mach_o_get_name (bfd_mach_o_filetype_name, h->filetype));
3153 fprintf (file, _(" ncmds : %08lx\n"), h->ncmds);
3154 fprintf (file, _(" sizeofcmds: %08lx\n"), h->sizeofcmds);
3155 fprintf (file, _(" flags : %08lx ("), h->flags);
3156 bfd_mach_o_print_flags (bfd_mach_o_header_flags_name, h->flags, file);
3157 fprintf (file, _(")\n"));
3158 fprintf (file, _(" reserved : %08lx\n"), h->reserved);
3159 }
3160
3161 static void
3162 bfd_mach_o_print_section_map (bfd *abfd, FILE *file)
3163 {
3164 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3165 unsigned int i, j;
3166 unsigned int sec_nbr = 0;
3167
3168 fprintf (file, _("Segments and Sections:\n"));
3169 fprintf (file, _(" #: Segment name Section name Address\n"));
3170
3171 for (i = 0; i < mdata->header.ncmds; i++)
3172 {
3173 bfd_mach_o_segment_command *seg;
3174
3175 if (mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT
3176 && mdata->commands[i].type != BFD_MACH_O_LC_SEGMENT_64)
3177 continue;
3178
3179 seg = &mdata->commands[i].command.segment;
3180
3181 fprintf (file, "[Segment %-16s ", seg->segname);
3182 fprintf_vma (file, seg->vmaddr);
3183 fprintf (file, "-");
3184 fprintf_vma (file, seg->vmaddr + seg->vmsize - 1);
3185 fputc (' ', file);
3186 fputc (seg->initprot & BFD_MACH_O_PROT_READ ? 'r' : '-', file);
3187 fputc (seg->initprot & BFD_MACH_O_PROT_WRITE ? 'w' : '-', file);
3188 fputc (seg->initprot & BFD_MACH_O_PROT_EXECUTE ? 'x' : '-', file);
3189 fprintf (file, "]\n");
3190 for (j = 0; j < seg->nsects; j++)
3191 {
3192 bfd_mach_o_section *sec = &seg->sections[j];
3193 fprintf (file, "%02u: %-16s %-16s ", ++sec_nbr,
3194 sec->segname, sec->sectname);
3195 fprintf_vma (file, sec->addr);
3196 fprintf (file, " ");
3197 fprintf_vma (file, sec->size);
3198 fprintf (file, " %08lx\n", sec->flags);
3199 }
3200 }
3201 }
3202
3203 /* Return the number of indirect symbols for a section.
3204 Must be called only for symbol pointer section and symbol stubs
3205 sections. */
3206
3207 static unsigned int
3208 bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec)
3209 {
3210 unsigned int elsz;
3211
3212 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3213 {
3214 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
3215 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
3216 elsz = bfd_mach_o_wide_p (abfd) ? 8 : 4;
3217 return sec->size / elsz;
3218 case BFD_MACH_O_S_SYMBOL_STUBS:
3219 elsz = sec->reserved2;
3220 if (elsz)
3221 return sec->size / elsz;
3222 else
3223 return 0;
3224 default:
3225 BFD_FAIL ();
3226 return 0;
3227 }
3228 }
3229
3230 static void
3231 bfd_mach_o_print_section (bfd *abfd ATTRIBUTE_UNUSED,
3232 bfd_mach_o_section *sec, FILE *file)
3233 {
3234 fprintf (file, " Section: sectname: %-16s segname: %-16s\n",
3235 sec->sectname, sec->segname);
3236 fprintf (file, " addr: ");
3237 fprintf_vma (file, sec->addr);
3238 fprintf (file, " size: ");
3239 fprintf_vma (file, sec->size);
3240 fprintf (file, " offset: ");
3241 fprintf_vma (file, sec->offset);
3242 fprintf (file, "\n");
3243 fprintf (file, " align: %ld", sec->align);
3244 fprintf (file, " nreloc: %lu reloff: ", sec->nreloc);
3245 fprintf_vma (file, sec->reloff);
3246 fprintf (file, "\n");
3247 fprintf (file, " flags: %08lx (type: %s", sec->flags,
3248 bfd_mach_o_get_name (bfd_mach_o_section_type_name,
3249 sec->flags & BFD_MACH_O_SECTION_TYPE_MASK));
3250 fprintf (file, " attr: ");
3251 bfd_mach_o_print_flags (bfd_mach_o_section_attribute_name,
3252 sec->flags & BFD_MACH_O_SECTION_ATTRIBUTES_MASK,
3253 file);
3254 fprintf (file, ")\n");
3255 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3256 {
3257 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
3258 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
3259 case BFD_MACH_O_S_SYMBOL_STUBS:
3260 fprintf (file, " first indirect sym: %lu", sec->reserved1);
3261 fprintf (file, " (%u entries)",
3262 bfd_mach_o_section_get_nbr_indirect (abfd, sec));
3263 break;
3264 default:
3265 fprintf (file, " reserved1: 0x%lx", sec->reserved1);
3266 break;
3267 }
3268 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3269 {
3270 case BFD_MACH_O_S_SYMBOL_STUBS:
3271 fprintf (file, " stub size: %lu", sec->reserved2);
3272 break;
3273 default:
3274 fprintf (file, " reserved2: 0x%lx", sec->reserved2);
3275 break;
3276 }
3277 fprintf (file, " reserved3: 0x%lx\n", sec->reserved3);
3278 }
3279
3280 static void
3281 bfd_mach_o_print_segment (bfd *abfd ATTRIBUTE_UNUSED,
3282 bfd_mach_o_load_command *cmd, FILE *file)
3283 {
3284 bfd_mach_o_segment_command *seg = &cmd->command.segment;
3285 unsigned int i;
3286
3287 fprintf (file, " name: %s\n", seg->segname);
3288 fprintf (file, " vmaddr: ");
3289 fprintf_vma (file, seg->vmaddr);
3290 fprintf (file, " vmsize: ");
3291 fprintf_vma (file, seg->vmsize);
3292 fprintf (file, "\n");
3293 fprintf (file, " fileoff: ");
3294 fprintf_vma (file, seg->fileoff);
3295 fprintf (file, " filesize: ");
3296 fprintf_vma (file, (bfd_vma)seg->filesize);
3297 fprintf (file, " endoff: ");
3298 fprintf_vma (file, (bfd_vma)(seg->fileoff + seg->filesize));
3299 fprintf (file, "\n");
3300 fprintf (file, " nsects: %lu ", seg->nsects);
3301 fprintf (file, " flags: %lx\n", seg->flags);
3302 for (i = 0; i < seg->nsects; i++)
3303 bfd_mach_o_print_section (abfd, &seg->sections[i], file);
3304 }
3305
3306 static void
3307 bfd_mach_o_print_dysymtab (bfd *abfd ATTRIBUTE_UNUSED,
3308 bfd_mach_o_load_command *cmd, FILE *file)
3309 {
3310 bfd_mach_o_dysymtab_command *dysymtab = &cmd->command.dysymtab;
3311 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3312 unsigned int i;
3313
3314 fprintf (file, " local symbols: idx: %10lu num: %lu\n",
3315 dysymtab->ilocalsym, dysymtab->nlocalsym);
3316 fprintf (file, " external symbols: idx: %10lu num: %lu\n",
3317 dysymtab->iextdefsym, dysymtab->nextdefsym);
3318 fprintf (file, " undefined symbols: idx: %10lu num: %lu\n",
3319 dysymtab->iundefsym, dysymtab->nundefsym);
3320 fprintf (file, " table of content: off: 0x%08lx num: %-8lu",
3321 dysymtab->tocoff, dysymtab->ntoc);
3322 fprintf (file, " (endoff: 0x%08lx)\n",
3323 dysymtab->tocoff
3324 + dysymtab->ntoc * BFD_MACH_O_TABLE_OF_CONTENT_SIZE);
3325 fprintf (file, " module table: off: 0x%08lx num: %-8lu",
3326 dysymtab->modtaboff, dysymtab->nmodtab);
3327 fprintf (file, " (endoff: 0x%08lx)\n",
3328 dysymtab->modtaboff + dysymtab->nmodtab
3329 * (mach_o_wide_p (&mdata->header) ?
3330 BFD_MACH_O_DYLIB_MODULE_64_SIZE : BFD_MACH_O_DYLIB_MODULE_SIZE));
3331 fprintf (file, " external reference table: off: 0x%08lx num: %-8lu",
3332 dysymtab->extrefsymoff, dysymtab->nextrefsyms);
3333 fprintf (file, " (endoff: 0x%08lx)\n",
3334 dysymtab->extrefsymoff
3335 + dysymtab->nextrefsyms * BFD_MACH_O_REFERENCE_SIZE);
3336 fprintf (file, " indirect symbol table: off: 0x%08lx num: %-8lu",
3337 dysymtab->indirectsymoff, dysymtab->nindirectsyms);
3338 fprintf (file, " (endoff: 0x%08lx)\n",
3339 dysymtab->indirectsymoff
3340 + dysymtab->nindirectsyms * BFD_MACH_O_INDIRECT_SYMBOL_SIZE);
3341 fprintf (file, " external relocation table: off: 0x%08lx num: %-8lu",
3342 dysymtab->extreloff, dysymtab->nextrel);
3343 fprintf (file, " (endoff: 0x%08lx)\n",
3344 dysymtab->extreloff + dysymtab->nextrel * BFD_MACH_O_RELENT_SIZE);
3345 fprintf (file, " local relocation table: off: 0x%08lx num: %-8lu",
3346 dysymtab->locreloff, dysymtab->nlocrel);
3347 fprintf (file, " (endoff: 0x%08lx)\n",
3348 dysymtab->locreloff + dysymtab->nlocrel * BFD_MACH_O_RELENT_SIZE);
3349
3350 if (dysymtab->ntoc > 0
3351 || dysymtab->nindirectsyms > 0
3352 || dysymtab->nextrefsyms > 0)
3353 {
3354 /* Try to read the symbols to display the toc or indirect symbols. */
3355 bfd_mach_o_scan_read_symtab_symbols (abfd);
3356 }
3357 else if (dysymtab->nmodtab > 0)
3358 {
3359 /* Try to read the strtab to display modules name. */
3360 bfd_mach_o_scan_read_symtab_strtab (abfd);
3361 }
3362
3363 for (i = 0; i < dysymtab->nmodtab; i++)
3364 {
3365 bfd_mach_o_dylib_module *module = &dysymtab->dylib_module[i];
3366 fprintf (file, " module %u:\n", i);
3367 fprintf (file, " name: %lu", module->module_name_idx);
3368 if (mdata->symtab && mdata->symtab->strtab)
3369 fprintf (file, ": %s",
3370 mdata->symtab->strtab + module->module_name_idx);
3371 fprintf (file, "\n");
3372 fprintf (file, " extdefsym: idx: %8lu num: %lu\n",
3373 module->iextdefsym, module->nextdefsym);
3374 fprintf (file, " refsym: idx: %8lu num: %lu\n",
3375 module->irefsym, module->nrefsym);
3376 fprintf (file, " localsym: idx: %8lu num: %lu\n",
3377 module->ilocalsym, module->nlocalsym);
3378 fprintf (file, " extrel: idx: %8lu num: %lu\n",
3379 module->iextrel, module->nextrel);
3380 fprintf (file, " init: idx: %8u num: %u\n",
3381 module->iinit, module->ninit);
3382 fprintf (file, " term: idx: %8u num: %u\n",
3383 module->iterm, module->nterm);
3384 fprintf (file, " objc_module_info: addr: ");
3385 fprintf_vma (file, module->objc_module_info_addr);
3386 fprintf (file, " size: %lu\n", module->objc_module_info_size);
3387 }
3388
3389 if (dysymtab->ntoc > 0)
3390 {
3391 bfd_mach_o_symtab_command *symtab = mdata->symtab;
3392
3393 fprintf (file, " table of content: (symbol/module)\n");
3394 for (i = 0; i < dysymtab->ntoc; i++)
3395 {
3396 bfd_mach_o_dylib_table_of_content *toc = &dysymtab->dylib_toc[i];
3397
3398 fprintf (file, " %4u: ", i);
3399 if (symtab && symtab->symbols && toc->symbol_index < symtab->nsyms)
3400 {
3401 const char *name = symtab->symbols[toc->symbol_index].symbol.name;
3402 fprintf (file, "%s (%lu)", name ? name : "*invalid*",
3403 toc->symbol_index);
3404 }
3405 else
3406 fprintf (file, "%lu", toc->symbol_index);
3407
3408 fprintf (file, " / ");
3409 if (symtab && symtab->strtab
3410 && toc->module_index < dysymtab->nmodtab)
3411 {
3412 bfd_mach_o_dylib_module *mod;
3413 mod = &dysymtab->dylib_module[toc->module_index];
3414 fprintf (file, "%s (%lu)",
3415 symtab->strtab + mod->module_name_idx,
3416 toc->module_index);
3417 }
3418 else
3419 fprintf (file, "%lu", toc->module_index);
3420
3421 fprintf (file, "\n");
3422 }
3423 }
3424
3425 if (dysymtab->nindirectsyms != 0)
3426 {
3427 fprintf (file, " indirect symbols:\n");
3428
3429 for (i = 0; i < mdata->nsects; i++)
3430 {
3431 bfd_mach_o_section *sec = mdata->sections[i];
3432 unsigned int j, first, last;
3433 bfd_mach_o_symtab_command *symtab = mdata->symtab;
3434
3435 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3436 {
3437 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
3438 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
3439 case BFD_MACH_O_S_SYMBOL_STUBS:
3440 first = sec->reserved1;
3441 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
3442 fprintf (file, " for section %s.%s:\n",
3443 sec->segname, sec->sectname);
3444 for (j = first; j < last; j++)
3445 {
3446 unsigned int isym = dysymtab->indirect_syms[j];
3447
3448 fprintf (file, " %5u: 0x%08x (%u)", j, isym, isym);
3449 if (isym & BFD_MACH_O_INDIRECT_SYMBOL_LOCAL)
3450 fprintf (file, " LOCAL");
3451 if (isym & BFD_MACH_O_INDIRECT_SYMBOL_ABS)
3452 fprintf (file, " ABSOLUTE");
3453 if (symtab && symtab->symbols
3454 && isym < symtab->nsyms
3455 && symtab->symbols[isym].symbol.name)
3456 fprintf (file, " %s", symtab->symbols[isym].symbol.name);
3457 fprintf (file, "\n");
3458 }
3459 break;
3460 default:
3461 break;
3462 }
3463 }
3464 }
3465 if (dysymtab->nextrefsyms > 0)
3466 {
3467 bfd_mach_o_symtab_command *symtab = mdata->symtab;
3468
3469 fprintf (file, " external reference table: (symbol flags)\n");
3470 for (i = 0; i < dysymtab->nextrefsyms; i++)
3471 {
3472 bfd_mach_o_dylib_reference *ref = &dysymtab->ext_refs[i];
3473
3474 fprintf (file, " %4u: %5lu 0x%02lx", i, ref->isym, ref->flags);
3475 if (symtab && symtab->symbols
3476 && ref->isym < symtab->nsyms
3477 && symtab->symbols[ref->isym].symbol.name)
3478 fprintf (file, " %s", symtab->symbols[ref->isym].symbol.name);
3479 fprintf (file, "\n");
3480 }
3481 }
3482
3483 }
3484
3485 bfd_boolean
3486 bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, PTR ptr)
3487 {
3488 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3489 FILE *file = (FILE *) ptr;
3490 unsigned int i;
3491
3492 bfd_mach_o_print_private_header (abfd, file);
3493 fputc ('\n', file);
3494
3495 for (i = 0; i < mdata->header.ncmds; i++)
3496 {
3497 bfd_mach_o_load_command *cmd = &mdata->commands[i];
3498
3499 fprintf (file, "Load command %s:",
3500 bfd_mach_o_get_name (bfd_mach_o_load_command_name, cmd->type));
3501 switch (cmd->type)
3502 {
3503 case BFD_MACH_O_LC_SEGMENT:
3504 case BFD_MACH_O_LC_SEGMENT_64:
3505 bfd_mach_o_print_segment (abfd, cmd, file);
3506 break;
3507 case BFD_MACH_O_LC_UUID:
3508 {
3509 bfd_mach_o_uuid_command *uuid = &cmd->command.uuid;
3510 unsigned int i;
3511
3512 for (i = 0; i < sizeof (uuid->uuid); i++)
3513 fprintf (file, " %02x", uuid->uuid[i]);
3514 fputc ('\n', file);
3515 }
3516 break;
3517 case BFD_MACH_O_LC_LOAD_DYLIB:
3518 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3519 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3520 case BFD_MACH_O_LC_ID_DYLIB:
3521 {
3522 bfd_mach_o_dylib_command *dylib = &cmd->command.dylib;
3523 bfd_byte *data = NULL;
3524
3525 if (! bfd_malloc_and_get_section (abfd, dylib->section, &data))
3526 {
3527 if (data != NULL)
3528 free (data);
3529 break;
3530 }
3531 fprintf (file,
3532 " %s\n",
3533 data + dylib->name_offset - cmd->offset - 8);
3534 fprintf (file, " time stamp: 0x%08lx\n",
3535 dylib->timestamp);
3536 fprintf (file, " current version: 0x%08lx\n",
3537 dylib->current_version);
3538 fprintf (file, " comptibility version: 0x%08lx\n",
3539 dylib->compatibility_version);
3540 free (data);
3541 break;
3542 }
3543 case BFD_MACH_O_LC_LOAD_DYLINKER:
3544 {
3545 bfd_mach_o_dylinker_command *linker = &cmd->command.dylinker;
3546 bfd_byte *data = NULL;
3547
3548 if (! bfd_malloc_and_get_section (abfd, linker->section, &data))
3549 {
3550 if (data != NULL)
3551 free (data);
3552 break;
3553 }
3554 fprintf (file,
3555 " %s\n",
3556 data + linker->name_offset - cmd->offset - 8);
3557 free (data);
3558 break;
3559 }
3560 case BFD_MACH_O_LC_SYMTAB:
3561 {
3562 bfd_mach_o_symtab_command *symtab = &cmd->command.symtab;
3563 fprintf (file,
3564 "\n"
3565 " symoff: 0x%08x nsyms: %8u (endoff: 0x%08x)\n",
3566 symtab->symoff, symtab->nsyms,
3567 symtab->symoff + symtab->nsyms
3568 * (mach_o_wide_p (&mdata->header)
3569 ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE));
3570 fprintf (file,
3571 " stroff: 0x%08x strsize: %8u (endoff: 0x%08x)\n",
3572 symtab->stroff, symtab->strsize,
3573 symtab->stroff + symtab->strsize);
3574 break;
3575 }
3576 case BFD_MACH_O_LC_DYSYMTAB:
3577 fprintf (file, "\n");
3578 bfd_mach_o_print_dysymtab (abfd, cmd, file);
3579 break;
3580 case BFD_MACH_O_LC_CODE_SIGNATURE:
3581 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
3582 {
3583 bfd_mach_o_linkedit_command *linkedit = &cmd->command.linkedit;
3584 fprintf
3585 (file, "\n"
3586 " dataoff: 0x%08lx datasize: 0x%08lx (endoff: 0x%08lx)\n",
3587 linkedit->dataoff, linkedit->datasize,
3588 linkedit->dataoff + linkedit->datasize);
3589 break;
3590 }
3591 case BFD_MACH_O_LC_SUB_FRAMEWORK:
3592 case BFD_MACH_O_LC_SUB_UMBRELLA:
3593 case BFD_MACH_O_LC_SUB_LIBRARY:
3594 case BFD_MACH_O_LC_SUB_CLIENT:
3595 {
3596 bfd_mach_o_str_command *str = &cmd->command.str;
3597 fprintf (file, " %s\n", str->str);
3598 break;
3599 }
3600 default:
3601 fprintf (file, "\n");
3602 break;
3603 }
3604 fputc ('\n', file);
3605 }
3606
3607 bfd_mach_o_print_section_map (abfd, file);
3608
3609 return TRUE;
3610 }
3611
3612 int
3613 bfd_mach_o_core_fetch_environment (bfd *abfd,
3614 unsigned char **rbuf,
3615 unsigned int *rlen)
3616 {
3617 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3618 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
3619 unsigned int i = 0;
3620
3621 for (i = 0; i < mdata->header.ncmds; i++)
3622 {
3623 bfd_mach_o_load_command *cur = &mdata->commands[i];
3624 bfd_mach_o_segment_command *seg = NULL;
3625
3626 if (cur->type != BFD_MACH_O_LC_SEGMENT)
3627 continue;
3628
3629 seg = &cur->command.segment;
3630
3631 if ((seg->vmaddr + seg->vmsize) == stackaddr)
3632 {
3633 unsigned long start = seg->fileoff;
3634 unsigned long end = seg->fileoff + seg->filesize;
3635 unsigned char *buf = bfd_malloc (1024);
3636 unsigned long size = 1024;
3637
3638 for (;;)
3639 {
3640 bfd_size_type nread = 0;
3641 unsigned long offset;
3642 int found_nonnull = 0;
3643
3644 if (size > (end - start))
3645 size = (end - start);
3646
3647 buf = bfd_realloc_or_free (buf, size);
3648 if (buf == NULL)
3649 return -1;
3650
3651 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
3652 {
3653 free (buf);
3654 return -1;
3655 }
3656
3657 nread = bfd_bread (buf, size, abfd);
3658
3659 if (nread != size)
3660 {
3661 free (buf);
3662 return -1;
3663 }
3664
3665 for (offset = 4; offset <= size; offset += 4)
3666 {
3667 unsigned long val;
3668
3669 val = *((unsigned long *) (buf + size - offset));
3670 if (! found_nonnull)
3671 {
3672 if (val != 0)
3673 found_nonnull = 1;
3674 }
3675 else if (val == 0x0)
3676 {
3677 unsigned long bottom;
3678 unsigned long top;
3679
3680 bottom = seg->fileoff + seg->filesize - offset;
3681 top = seg->fileoff + seg->filesize - 4;
3682 *rbuf = bfd_malloc (top - bottom);
3683 *rlen = top - bottom;
3684
3685 memcpy (*rbuf, buf + size - *rlen, *rlen);
3686 free (buf);
3687 return 0;
3688 }
3689 }
3690
3691 if (size == (end - start))
3692 break;
3693
3694 size *= 2;
3695 }
3696
3697 free (buf);
3698 }
3699 }
3700
3701 return -1;
3702 }
3703
3704 char *
3705 bfd_mach_o_core_file_failing_command (bfd *abfd)
3706 {
3707 unsigned char *buf = NULL;
3708 unsigned int len = 0;
3709 int ret = -1;
3710
3711 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
3712 if (ret < 0)
3713 return NULL;
3714
3715 return (char *) buf;
3716 }
3717
3718 int
3719 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
3720 {
3721 return 0;
3722 }
3723
3724 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
3725 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
3726
3727 #define bfd_mach_o_swap_reloc_in NULL
3728 #define bfd_mach_o_swap_reloc_out NULL
3729
3730 #define TARGET_NAME mach_o_be_vec
3731 #define TARGET_STRING "mach-o-be"
3732 #define TARGET_BIG_ENDIAN 1
3733 #define TARGET_ARCHIVE 0
3734 #include "mach-o-target.c"
3735
3736 #undef TARGET_NAME
3737 #undef TARGET_STRING
3738 #undef TARGET_BIG_ENDIAN
3739 #undef TARGET_ARCHIVE
3740
3741 #define TARGET_NAME mach_o_le_vec
3742 #define TARGET_STRING "mach-o-le"
3743 #define TARGET_BIG_ENDIAN 0
3744 #define TARGET_ARCHIVE 0
3745
3746 #include "mach-o-target.c"
3747
3748 #undef TARGET_NAME
3749 #undef TARGET_STRING
3750 #undef TARGET_BIG_ENDIAN
3751 #undef TARGET_ARCHIVE
3752
3753 #define TARGET_NAME mach_o_fat_vec
3754 #define TARGET_STRING "mach-o-fat"
3755 #define TARGET_BIG_ENDIAN 1
3756 #define TARGET_ARCHIVE 1
3757
3758 #include "mach-o-target.c"
3759
3760 #undef TARGET_NAME
3761 #undef TARGET_STRING
3762 #undef TARGET_BIG_ENDIAN
3763 #undef TARGET_ARCHIVE
GDB Binutils - Deliverables
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