1 /* Mach-O support for BFD.
2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
4 Free Software Foundation, Inc.
6 This file is part of BFD, the Binary File Descriptor library.
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program; if not, write to the Free Software
20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
27 #include "libiberty.h"
28 #include "aout/stab_gnu.h"
29 #include "mach-o/reloc.h"
30 #include "mach-o/external.h"
35 #define bfd_mach_o_object_p bfd_mach_o_gen_object_p
36 #define bfd_mach_o_core_p bfd_mach_o_gen_core_p
37 #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject
39 #define FILE_ALIGN(off, algn) \
40 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1 << (algn)))
43 bfd_mach_o_version (bfd *abfd)
45 bfd_mach_o_data_struct *mdata = NULL;
47 BFD_ASSERT (bfd_mach_o_valid (abfd));
48 mdata = bfd_mach_o_get_data (abfd);
50 return mdata->header.version;
54 bfd_mach_o_valid (bfd *abfd)
56 if (abfd == NULL || abfd->xvec == NULL)
59 if (abfd->xvec->flavour != bfd_target_mach_o_flavour)
62 if (bfd_mach_o_get_data (abfd) == NULL)
67 static INLINE bfd_boolean
68 mach_o_wide_p (bfd_mach_o_header *header)
70 switch (header->version)
82 static INLINE bfd_boolean
83 bfd_mach_o_wide_p (bfd *abfd)
85 return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header);
88 /* Tables to translate well known Mach-O segment/section names to bfd
89 names. Use of canonical names (such as .text or .debug_frame) is required
93 static const mach_o_section_name_xlat text_section_names_xlat[] =
96 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
97 BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0},
98 { ".const", "__const",
99 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
100 BFD_MACH_O_S_ATTR_NONE, 0},
101 { ".static_const", "__static_const",
102 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
103 BFD_MACH_O_S_ATTR_NONE, 0},
104 { ".cstring", "__cstring",
105 SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS,
106 BFD_MACH_O_S_CSTRING_LITERALS,
107 BFD_MACH_O_S_ATTR_NONE, 0},
108 { ".literal4", "__literal4",
109 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS,
110 BFD_MACH_O_S_ATTR_NONE, 2},
111 { ".literal8", "__literal8",
112 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS,
113 BFD_MACH_O_S_ATTR_NONE, 3},
114 { ".literal16", "__literal16",
115 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS,
116 BFD_MACH_O_S_ATTR_NONE, 4},
117 { ".constructor", "__constructor",
118 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
119 BFD_MACH_O_S_ATTR_NONE, 0},
120 { ".destructor", "__destructor",
121 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
122 BFD_MACH_O_S_ATTR_NONE, 0},
123 { ".eh_frame", "__eh_frame",
124 SEC_READONLY | SEC_LOAD, BFD_MACH_O_S_COALESCED,
125 BFD_MACH_O_S_ATTR_LIVE_SUPPORT
126 | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
127 | BFD_MACH_O_S_ATTR_NO_TOC, 3},
128 { NULL, NULL, 0, 0, 0, 0}
131 /* __DATA Segment. */
132 static const mach_o_section_name_xlat data_section_names_xlat[] =
135 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
136 BFD_MACH_O_S_ATTR_NONE, 0},
138 SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL,
139 BFD_MACH_O_S_ATTR_NONE, 0},
140 { ".const_data", "__const",
141 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
142 BFD_MACH_O_S_ATTR_NONE, 0},
143 { ".static_data", "__static_data",
144 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
145 BFD_MACH_O_S_ATTR_NONE, 0},
146 { ".mod_init_func", "__mod_init_func",
147 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS,
148 BFD_MACH_O_S_ATTR_NONE, 2},
149 { ".mod_term_func", "__mod_term_func",
150 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS,
151 BFD_MACH_O_S_ATTR_NONE, 2},
153 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
154 BFD_MACH_O_S_ATTR_NONE, 0},
155 { ".cfstring", "__cfstring",
156 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
157 BFD_MACH_O_S_ATTR_NONE, 2},
158 { NULL, NULL, 0, 0, 0, 0}
161 /* __DWARF Segment. */
162 static const mach_o_section_name_xlat dwarf_section_names_xlat[] =
164 { ".debug_frame", "__debug_frame",
165 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
166 BFD_MACH_O_S_ATTR_DEBUG, 0},
167 { ".debug_info", "__debug_info",
168 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
169 BFD_MACH_O_S_ATTR_DEBUG, 0},
170 { ".debug_abbrev", "__debug_abbrev",
171 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
172 BFD_MACH_O_S_ATTR_DEBUG, 0},
173 { ".debug_aranges", "__debug_aranges",
174 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
175 BFD_MACH_O_S_ATTR_DEBUG, 0},
176 { ".debug_macinfo", "__debug_macinfo",
177 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
178 BFD_MACH_O_S_ATTR_DEBUG, 0},
179 { ".debug_line", "__debug_line",
180 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
181 BFD_MACH_O_S_ATTR_DEBUG, 0},
182 { ".debug_loc", "__debug_loc",
183 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
184 BFD_MACH_O_S_ATTR_DEBUG, 0},
185 { ".debug_pubnames", "__debug_pubnames",
186 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
187 BFD_MACH_O_S_ATTR_DEBUG, 0},
188 { ".debug_pubtypes", "__debug_pubtypes",
189 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
190 BFD_MACH_O_S_ATTR_DEBUG, 0},
191 { ".debug_str", "__debug_str",
192 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
193 BFD_MACH_O_S_ATTR_DEBUG, 0},
194 { ".debug_ranges", "__debug_ranges",
195 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
196 BFD_MACH_O_S_ATTR_DEBUG, 0},
197 { ".debug_macro", "__debug_macro",
198 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
199 BFD_MACH_O_S_ATTR_DEBUG, 0},
200 { NULL, NULL, 0, 0, 0, 0}
203 /* __OBJC Segment. */
204 static const mach_o_section_name_xlat objc_section_names_xlat[] =
206 { ".objc_class", "__class",
207 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
208 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
209 { ".objc_meta_class", "__meta_class",
210 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
211 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
212 { ".objc_cat_cls_meth", "__cat_cls_meth",
213 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
214 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
215 { ".objc_cat_inst_meth", "__cat_inst_meth",
216 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
217 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
218 { ".objc_protocol", "__protocol",
219 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
220 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
221 { ".objc_string_object", "__string_object",
222 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
223 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
224 { ".objc_cls_meth", "__cls_meth",
225 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
226 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
227 { ".objc_inst_meth", "__inst_meth",
228 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
229 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
230 { ".objc_cls_refs", "__cls_refs",
231 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
232 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
233 { ".objc_message_refs", "__message_refs",
234 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
235 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
236 { ".objc_symbols", "__symbols",
237 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
238 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
239 { ".objc_category", "__category",
240 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
241 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
242 { ".objc_class_vars", "__class_vars",
243 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
244 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
245 { ".objc_instance_vars", "__instance_vars",
246 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
247 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
248 { ".objc_module_info", "__module_info",
249 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
250 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
251 { ".objc_selector_strs", "__selector_strs",
252 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS,
253 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
254 { ".objc_image_info", "__image_info",
255 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
256 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
257 { ".objc_selector_fixup", "__sel_fixup",
258 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
259 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
261 { ".objc1_class_ext", "__class_ext",
262 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
263 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
264 { ".objc1_property_list", "__property",
265 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
266 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
267 { ".objc1_protocol_ext", "__protocol_ext",
268 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
269 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
270 { NULL, NULL, 0, 0, 0, 0}
273 static const mach_o_segment_name_xlat segsec_names_xlat[] =
275 { "__TEXT", text_section_names_xlat },
276 { "__DATA", data_section_names_xlat },
277 { "__DWARF", dwarf_section_names_xlat },
278 { "__OBJC", objc_section_names_xlat },
282 static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF";
284 /* For both cases bfd-name => mach-o name and vice versa, the specific target
285 is checked before the generic. This allows a target (e.g. ppc for cstring)
286 to override the generic definition with a more specific one. */
288 /* Fetch the translation from a Mach-O section designation (segment, section)
289 as a bfd short name, if one exists. Otherwise return NULL.
291 Allow the segment and section names to be unterminated 16 byte arrays. */
293 const mach_o_section_name_xlat *
294 bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname,
295 const char *sectname)
297 const struct mach_o_segment_name_xlat *seg;
298 const mach_o_section_name_xlat *sec;
299 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
301 /* First try any target-specific translations defined... */
302 if (bed->segsec_names_xlat)
303 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
304 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
305 for (sec = seg->sections; sec->mach_o_name; sec++)
306 if (strncmp (sec->mach_o_name, sectname,
307 BFD_MACH_O_SECTNAME_SIZE) == 0)
310 /* ... and then the Mach-O generic ones. */
311 for (seg = segsec_names_xlat; seg->segname; seg++)
312 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
313 for (sec = seg->sections; sec->mach_o_name; sec++)
314 if (strncmp (sec->mach_o_name, sectname,
315 BFD_MACH_O_SECTNAME_SIZE) == 0)
321 /* If the bfd_name for this section is a 'canonical' form for which we
322 know the Mach-O data, return the segment name and the data for the
323 Mach-O equivalent. Otherwise return NULL. */
325 const mach_o_section_name_xlat *
326 bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name,
327 const char **segname)
329 const struct mach_o_segment_name_xlat *seg;
330 const mach_o_section_name_xlat *sec;
331 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
334 if (bfd_name[0] != '.')
337 /* First try any target-specific translations defined... */
338 if (bed->segsec_names_xlat)
339 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
340 for (sec = seg->sections; sec->bfd_name; sec++)
341 if (strcmp (bfd_name, sec->bfd_name) == 0)
343 *segname = seg->segname;
347 /* ... and then the Mach-O generic ones. */
348 for (seg = segsec_names_xlat; seg->segname; seg++)
349 for (sec = seg->sections; sec->bfd_name; sec++)
350 if (strcmp (bfd_name, sec->bfd_name) == 0)
352 *segname = seg->segname;
359 /* Convert Mach-O section name to BFD.
361 Try to use standard/canonical names, for which we have tables including
362 default flag settings - which are returned. Otherwise forge a new name
363 in the form "<segmentname>.<sectionname>" this will be prefixed with
364 LC_SEGMENT. if the segment name does not begin with an underscore.
366 SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL-
367 terminated if the name length is exactly 16 bytes - but must be if the name
368 length is less than 16 characters). */
371 bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname,
372 const char *secname, const char **name,
375 const mach_o_section_name_xlat *xlat;
378 const char *pfx = "";
381 *flags = SEC_NO_FLAGS;
383 /* First search for a canonical name...
384 xlat will be non-null if there is an entry for segname, secname. */
385 xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname);
388 len = strlen (xlat->bfd_name);
389 res = bfd_alloc (abfd, len+1);
392 memcpy (res, xlat->bfd_name, len+1);
394 *flags = xlat->bfd_flags;
398 /* ... else we make up a bfd name from the segment concatenated with the
401 len = 16 + 1 + 16 + 1;
403 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
404 with an underscore. */
405 if (segname[0] != '_')
407 static const char seg_pfx[] = "LC_SEGMENT.";
410 len += sizeof (seg_pfx) - 1;
413 res = bfd_alloc (abfd, len);
416 snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname);
420 /* Convert a bfd section name to a Mach-O segment + section name.
422 If the name is a canonical one for which we have a Darwin match
423 return the translation table - which contains defaults for flags,
424 type, attribute and default alignment data.
426 Otherwise, expand the bfd_name (assumed to be in the form
427 "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
429 static const mach_o_section_name_xlat *
430 bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
432 bfd_mach_o_section *section)
434 const mach_o_section_name_xlat *xlat;
435 const char *name = bfd_get_section_name (abfd, sect);
442 memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1);
443 memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1);
445 /* See if is a canonical name ... */
446 xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname);
449 strcpy (section->segname, segname);
450 strcpy (section->sectname, xlat->mach_o_name);
454 /* .. else we convert our constructed one back to Mach-O.
455 Strip LC_SEGMENT. prefix, if present. */
456 if (strncmp (name, "LC_SEGMENT.", 11) == 0)
460 dot = strchr (name, '.');
463 /* Try to split name into segment and section names. */
464 if (dot && dot != name)
467 seclen = len - (dot + 1 - name);
469 if (seglen < 16 && seclen < 16)
471 memcpy (section->segname, name, seglen);
472 section->segname[seglen] = 0;
473 memcpy (section->sectname, dot + 1, seclen);
474 section->sectname[seclen] = 0;
479 /* The segment and section names are both missing - don't make them
481 if (dot && dot == name)
484 /* Just duplicate the name into both segment and section. */
487 memcpy (section->segname, name, len);
488 section->segname[len] = 0;
489 memcpy (section->sectname, name, len);
490 section->sectname[len] = 0;
494 /* Return the size of an entry for section SEC.
495 Must be called only for symbol pointer section and symbol stubs
499 bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec)
501 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
503 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
504 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
505 return bfd_mach_o_wide_p (abfd) ? 8 : 4;
506 case BFD_MACH_O_S_SYMBOL_STUBS:
507 return sec->reserved2;
514 /* Return the number of indirect symbols for a section.
515 Must be called only for symbol pointer section and symbol stubs
519 bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec)
523 elsz = bfd_mach_o_section_get_entry_size (abfd, sec);
527 return sec->size / elsz;
531 /* Copy any private info we understand from the input symbol
532 to the output symbol. */
535 bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
537 bfd *obfd ATTRIBUTE_UNUSED,
540 bfd_mach_o_asymbol *os, *is;
541 os = (bfd_mach_o_asymbol *)osymbol;
542 is = (bfd_mach_o_asymbol *)isymbol;
543 os->n_type = is->n_type;
544 os->n_sect = is->n_sect;
545 os->n_desc = is->n_desc;
546 os->symbol.udata.i = is->symbol.udata.i;
550 /* Copy any private info we understand from the input section
551 to the output section. */
554 bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED,
556 bfd *obfd ATTRIBUTE_UNUSED,
559 if (osection->used_by_bfd == NULL)
560 osection->used_by_bfd = isection->used_by_bfd;
562 if (isection->used_by_bfd != NULL)
563 memcpy (osection->used_by_bfd, isection->used_by_bfd,
564 sizeof (bfd_mach_o_section));
566 if (osection->used_by_bfd != NULL)
567 ((bfd_mach_o_section *)osection->used_by_bfd)->bfdsection = osection;
572 /* Copy any private info we understand from the input bfd
573 to the output bfd. */
576 bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
578 if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
579 || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
582 BFD_ASSERT (bfd_mach_o_valid (ibfd));
583 BFD_ASSERT (bfd_mach_o_valid (obfd));
585 /* FIXME: copy commands. */
590 /* This allows us to set up to 32 bits of flags (unless we invent some
591 fiendish scheme to subdivide). For now, we'll just set the file flags
592 without error checking - just overwrite. */
595 bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags)
597 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
602 mdata->header.flags = flags;
606 /* Count the total number of symbols. */
609 bfd_mach_o_count_symbols (bfd *abfd)
611 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
613 if (mdata->symtab == NULL)
615 return mdata->symtab->nsyms;
619 bfd_mach_o_get_symtab_upper_bound (bfd *abfd)
621 long nsyms = bfd_mach_o_count_symbols (abfd);
623 return ((nsyms + 1) * sizeof (asymbol *));
627 bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation)
629 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
630 long nsyms = bfd_mach_o_count_symbols (abfd);
631 bfd_mach_o_symtab_command *sym = mdata->symtab;
639 /* Do not try to read symbols if there are none. */
644 if (!bfd_mach_o_read_symtab_symbols (abfd))
646 (*_bfd_error_handler)
647 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
651 BFD_ASSERT (sym->symbols != NULL);
653 for (j = 0; j < sym->nsyms; j++)
654 alocation[j] = &sym->symbols[j].symbol;
661 /* Create synthetic symbols for indirect symbols. */
664 bfd_mach_o_get_synthetic_symtab (bfd *abfd,
665 long symcount ATTRIBUTE_UNUSED,
666 asymbol **syms ATTRIBUTE_UNUSED,
667 long dynsymcount ATTRIBUTE_UNUSED,
668 asymbol **dynsyms ATTRIBUTE_UNUSED,
671 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
672 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
673 bfd_mach_o_symtab_command *symtab = mdata->symtab;
675 unsigned long count, i, j, n;
682 /* Stop now if no symbols or no indirect symbols. */
683 if (dysymtab == NULL || symtab == NULL || symtab->symbols == NULL)
686 if (dysymtab->nindirectsyms == 0)
689 /* We need to allocate a bfd symbol for every indirect symbol and to
690 allocate the memory for its name. */
691 count = dysymtab->nindirectsyms;
692 size = count * sizeof (asymbol) + 1;
694 for (j = 0; j < count; j++)
696 unsigned int isym = dysymtab->indirect_syms[j];
698 /* Some indirect symbols are anonymous. */
699 if (isym < symtab->nsyms && symtab->symbols[isym].symbol.name)
700 size += strlen (symtab->symbols[isym].symbol.name) + sizeof ("$stub");
703 s = *ret = (asymbol *) bfd_malloc (size);
706 names = (char *) (s + count);
711 for (i = 0; i < mdata->nsects; i++)
713 bfd_mach_o_section *sec = mdata->sections[i];
714 unsigned int first, last;
718 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
720 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
721 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
722 case BFD_MACH_O_S_SYMBOL_STUBS:
723 /* Only these sections have indirect symbols. */
724 first = sec->reserved1;
725 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
727 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
728 for (j = first; j < last; j++)
730 unsigned int isym = dysymtab->indirect_syms[j];
732 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
733 s->section = sec->bfdsection;
734 s->value = addr - sec->addr;
737 if (isym < symtab->nsyms
738 && symtab->symbols[isym].symbol.name)
740 const char *sym = symtab->symbols[isym].symbol.name;
745 memcpy (names, sym, len);
747 memcpy (names, "$stub", sizeof ("$stub"));
748 names += sizeof ("$stub");
767 bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
771 bfd_symbol_info (symbol, ret);
775 bfd_mach_o_print_symbol (bfd *abfd,
778 bfd_print_symbol_type how)
780 FILE *file = (FILE *) afile;
782 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
786 case bfd_print_symbol_name:
787 fprintf (file, "%s", symbol->name);
790 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
791 if (asym->n_type & BFD_MACH_O_N_STAB)
792 name = bfd_get_stab_name (asym->n_type);
794 switch (asym->n_type & BFD_MACH_O_N_TYPE)
796 case BFD_MACH_O_N_UNDF:
797 if (symbol->value == 0)
802 case BFD_MACH_O_N_ABS:
805 case BFD_MACH_O_N_INDR:
808 case BFD_MACH_O_N_PBUD:
811 case BFD_MACH_O_N_SECT:
820 fprintf (file, " %02x %-6s %02x %04x",
821 asym->n_type, name, asym->n_sect, asym->n_desc);
822 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
823 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
824 fprintf (file, " [%s]", symbol->section->name);
825 fprintf (file, " %s", symbol->name);
830 bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
831 bfd_mach_o_cpu_subtype msubtype,
832 enum bfd_architecture *type,
833 unsigned long *subtype)
835 *subtype = bfd_arch_unknown;
839 case BFD_MACH_O_CPU_TYPE_VAX:
840 *type = bfd_arch_vax;
842 case BFD_MACH_O_CPU_TYPE_MC680x0:
843 *type = bfd_arch_m68k;
845 case BFD_MACH_O_CPU_TYPE_I386:
846 *type = bfd_arch_i386;
847 *subtype = bfd_mach_i386_i386;
849 case BFD_MACH_O_CPU_TYPE_X86_64:
850 *type = bfd_arch_i386;
851 *subtype = bfd_mach_x86_64;
853 case BFD_MACH_O_CPU_TYPE_MIPS:
854 *type = bfd_arch_mips;
856 case BFD_MACH_O_CPU_TYPE_MC98000:
857 *type = bfd_arch_m98k;
859 case BFD_MACH_O_CPU_TYPE_HPPA:
860 *type = bfd_arch_hppa;
862 case BFD_MACH_O_CPU_TYPE_ARM:
863 *type = bfd_arch_arm;
866 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
867 *subtype = bfd_mach_arm_4T;
869 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
870 *subtype = bfd_mach_arm_4T; /* Best fit ? */
872 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
873 *subtype = bfd_mach_arm_5TE;
875 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
876 *subtype = bfd_mach_arm_XScale;
878 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
879 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
881 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
886 case BFD_MACH_O_CPU_TYPE_MC88000:
887 *type = bfd_arch_m88k;
889 case BFD_MACH_O_CPU_TYPE_SPARC:
890 *type = bfd_arch_sparc;
891 *subtype = bfd_mach_sparc;
893 case BFD_MACH_O_CPU_TYPE_I860:
894 *type = bfd_arch_i860;
896 case BFD_MACH_O_CPU_TYPE_ALPHA:
897 *type = bfd_arch_alpha;
899 case BFD_MACH_O_CPU_TYPE_POWERPC:
900 *type = bfd_arch_powerpc;
901 *subtype = bfd_mach_ppc;
903 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
904 *type = bfd_arch_powerpc;
905 *subtype = bfd_mach_ppc64;
908 *type = bfd_arch_unknown;
914 bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
916 struct mach_o_header_external raw;
919 size = mach_o_wide_p (header) ?
920 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
922 bfd_h_put_32 (abfd, header->magic, raw.magic);
923 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
924 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
925 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
926 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
927 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
928 bfd_h_put_32 (abfd, header->flags, raw.flags);
930 if (mach_o_wide_p (header))
931 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
933 if (bfd_seek (abfd, 0, SEEK_SET) != 0
934 || bfd_bwrite (&raw, size, abfd) != size)
941 bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
943 bfd_mach_o_thread_command *cmd = &command->command.thread;
945 struct mach_o_thread_command_external raw;
948 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
949 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
952 for (i = 0; i < cmd->nflavours; i++)
954 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
955 BFD_ASSERT (cmd->flavours[i].offset ==
956 (command->offset + offset + BFD_MACH_O_LC_SIZE));
958 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
959 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
961 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
962 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
965 offset += cmd->flavours[i].size + sizeof (raw);
972 bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
975 return (asect->reloc_count + 1) * sizeof (arelent *);
979 bfd_mach_o_canonicalize_one_reloc (bfd *abfd,
980 struct mach_o_reloc_info_external *raw,
981 arelent *res, asymbol **syms)
983 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
984 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
985 bfd_mach_o_reloc_info reloc;
990 addr = bfd_get_32 (abfd, raw->r_address);
991 symnum = bfd_get_32 (abfd, raw->r_symbolnum);
993 if (addr & BFD_MACH_O_SR_SCATTERED)
997 /* Scattered relocation.
998 Extract section and offset from r_value. */
999 res->sym_ptr_ptr = NULL;
1001 for (j = 0; j < mdata->nsects; j++)
1003 bfd_mach_o_section *sect = mdata->sections[j];
1004 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1006 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1007 res->addend = symnum - sect->addr;
1011 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
1012 reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1013 reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1014 reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL;
1015 reloc.r_scattered = 1;
1019 unsigned int num = BFD_MACH_O_GET_R_SYMBOLNUM (symnum);
1021 res->address = addr;
1022 if (symnum & BFD_MACH_O_R_EXTERN)
1029 BFD_ASSERT (num != 0);
1030 BFD_ASSERT (num <= mdata->nsects);
1031 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1032 /* For a symbol defined in section S, the addend (stored in the
1033 binary) contains the address of the section. To comply with
1034 bfd conventio, substract the section address.
1035 Use the address from the header, so that the user can modify
1036 the vma of the section. */
1037 res->addend = -mdata->sections[num - 1]->addr;
1040 res->sym_ptr_ptr = sym;
1041 reloc.r_type = BFD_MACH_O_GET_R_TYPE (symnum);
1042 reloc.r_length = BFD_MACH_O_GET_R_LENGTH (symnum);
1043 reloc.r_pcrel = (symnum & BFD_MACH_O_R_PCREL) ? 1 : 0;
1044 reloc.r_scattered = 0;
1047 if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc))
1053 bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1054 unsigned long count,
1055 arelent *res, asymbol **syms)
1058 struct mach_o_reloc_info_external *native_relocs;
1059 bfd_size_type native_size;
1061 /* Allocate and read relocs. */
1062 native_size = count * BFD_MACH_O_RELENT_SIZE;
1064 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
1065 if (native_relocs == NULL)
1068 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
1069 || bfd_bread (native_relocs, native_size, abfd) != native_size)
1072 for (i = 0; i < count; i++)
1074 if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i],
1078 free (native_relocs);
1081 free (native_relocs);
1086 bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1087 arelent **rels, asymbol **syms)
1089 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1093 if (asect->reloc_count == 0)
1096 /* No need to go further if we don't know how to read relocs. */
1097 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1100 if (asect->relocation == NULL)
1102 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1106 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1107 asect->reloc_count, res, syms) < 0)
1112 asect->relocation = res;
1115 res = asect->relocation;
1116 for (i = 0; i < asect->reloc_count; i++)
1124 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1126 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1128 if (mdata->dysymtab == NULL)
1130 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
1131 * sizeof (arelent *);
1135 bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1136 struct bfd_symbol **syms)
1138 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1139 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1140 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1144 if (dysymtab == NULL)
1146 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1149 /* No need to go further if we don't know how to read relocs. */
1150 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1153 if (mdata->dyn_reloc_cache == NULL)
1155 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1156 * sizeof (arelent));
1160 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1161 dysymtab->nextrel, res, syms) < 0)
1167 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1169 res + dysymtab->nextrel, syms) < 0)
1175 mdata->dyn_reloc_cache = res;
1178 res = mdata->dyn_reloc_cache;
1179 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1186 bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
1188 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1192 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1194 sec = section->bfdsection;
1195 if (sec->reloc_count == 0)
1198 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1201 /* Allocate relocation room. */
1202 mdata->filelen = FILE_ALIGN(mdata->filelen, 2);
1203 section->nreloc = sec->reloc_count;
1204 sec->rel_filepos = mdata->filelen;
1205 section->reloff = sec->rel_filepos;
1206 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
1208 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1211 /* Convert and write. */
1212 entries = section->bfdsection->orelocation;
1213 for (i = 0; i < section->nreloc; i++)
1215 arelent *rel = entries[i];
1216 struct mach_o_reloc_info_external raw;
1217 bfd_mach_o_reloc_info info, *pinfo = &info;
1219 /* Convert relocation to an intermediate representation. */
1220 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1223 /* Lower the relocation info. */
1224 if (pinfo->r_scattered)
1228 v = BFD_MACH_O_SR_SCATTERED
1229 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1230 | BFD_MACH_O_SET_SR_LENGTH(pinfo->r_length)
1231 | BFD_MACH_O_SET_SR_TYPE(pinfo->r_type)
1232 | BFD_MACH_O_SET_SR_ADDRESS(pinfo->r_address);
1233 /* Note: scattered relocs have field in reverse order... */
1234 bfd_put_32 (abfd, v, raw.r_address);
1235 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1241 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1242 v = BFD_MACH_O_SET_R_SYMBOLNUM (pinfo->r_value)
1243 | (pinfo->r_pcrel ? BFD_MACH_O_R_PCREL : 0)
1244 | BFD_MACH_O_SET_R_LENGTH (pinfo->r_length)
1245 | (pinfo->r_extern ? BFD_MACH_O_R_EXTERN : 0)
1246 | BFD_MACH_O_SET_R_TYPE (pinfo->r_type);
1247 bfd_put_32 (abfd, v, raw.r_symbolnum);
1250 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
1251 != BFD_MACH_O_RELENT_SIZE)
1258 bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
1260 struct mach_o_section_32_external raw;
1262 memcpy (raw.sectname, section->sectname, 16);
1263 memcpy (raw.segname, section->segname, 16);
1264 bfd_h_put_32 (abfd, section->addr, raw.addr);
1265 bfd_h_put_32 (abfd, section->size, raw.size);
1266 bfd_h_put_32 (abfd, section->offset, raw.offset);
1267 bfd_h_put_32 (abfd, section->align, raw.align);
1268 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1269 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1270 bfd_h_put_32 (abfd, section->flags, raw.flags);
1271 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1272 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1274 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
1275 != BFD_MACH_O_SECTION_SIZE)
1282 bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
1284 struct mach_o_section_64_external raw;
1286 memcpy (raw.sectname, section->sectname, 16);
1287 memcpy (raw.segname, section->segname, 16);
1288 bfd_h_put_64 (abfd, section->addr, raw.addr);
1289 bfd_h_put_64 (abfd, section->size, raw.size);
1290 bfd_h_put_32 (abfd, section->offset, raw.offset);
1291 bfd_h_put_32 (abfd, section->align, raw.align);
1292 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1293 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1294 bfd_h_put_32 (abfd, section->flags, raw.flags);
1295 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1296 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1297 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1299 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
1300 != BFD_MACH_O_SECTION_64_SIZE)
1307 bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1309 struct mach_o_segment_command_32_external raw;
1310 bfd_mach_o_segment_command *seg = &command->command.segment;
1311 bfd_mach_o_section *sec;
1313 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1315 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1316 if (!bfd_mach_o_write_relocs (abfd, sec))
1319 memcpy (raw.segname, seg->segname, 16);
1320 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1321 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1322 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1323 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1324 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1325 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1326 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1327 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1329 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1330 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1333 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1334 if (bfd_mach_o_write_section_32 (abfd, sec))
1341 bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1343 struct mach_o_segment_command_64_external raw;
1344 bfd_mach_o_segment_command *seg = &command->command.segment;
1345 bfd_mach_o_section *sec;
1347 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1349 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1350 if (!bfd_mach_o_write_relocs (abfd, sec))
1353 memcpy (raw.segname, seg->segname, 16);
1354 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1355 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1356 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1357 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1358 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1359 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1360 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1361 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1363 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1364 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1367 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1368 if (bfd_mach_o_write_section_64 (abfd, sec))
1375 bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1377 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1378 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1380 unsigned int wide = bfd_mach_o_wide_p (abfd);
1381 unsigned int symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
1382 struct bfd_strtab_hash *strtab;
1383 asymbol **symbols = bfd_get_outsymbols (abfd);
1385 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1387 /* Write the symbols first. */
1388 mdata->filelen = FILE_ALIGN(mdata->filelen, wide ? 3 : 2);
1389 sym->symoff = mdata->filelen;
1390 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1393 sym->nsyms = bfd_get_symcount (abfd);
1394 mdata->filelen += sym->nsyms * symlen;
1396 strtab = _bfd_stringtab_init ();
1401 /* Although we don't strictly need to do this, for compatibility with
1402 Darwin system tools, actually output an empty string for the index
1404 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1406 for (i = 0; i < sym->nsyms; i++)
1408 bfd_size_type str_index;
1409 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1411 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
1412 /* An index of 0 always means the empty string. */
1416 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
1418 if (str_index == (bfd_size_type) -1)
1424 struct mach_o_nlist_64_external raw;
1426 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1427 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1428 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1429 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1430 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1433 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1438 struct mach_o_nlist_external raw;
1440 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1441 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1442 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1443 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1444 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1447 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1451 sym->strsize = _bfd_stringtab_size (strtab);
1452 sym->stroff = mdata->filelen;
1453 mdata->filelen += sym->strsize;
1455 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
1457 _bfd_stringtab_free (strtab);
1461 struct mach_o_symtab_command_external raw;
1463 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1464 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1465 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1466 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1468 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1469 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1476 _bfd_stringtab_free (strtab);
1480 /* Write a dysymtab command.
1481 TODO: Possibly coalesce writes of smaller objects. */
1484 bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
1486 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
1488 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
1490 if (cmd->nmodtab != 0)
1494 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
1497 for (i = 0; i < cmd->nmodtab; i++)
1499 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
1503 iinit = module->iinit & 0xffff;
1504 iinit |= ((module->iterm & 0xffff) << 16);
1506 ninit = module->ninit & 0xffff;
1507 ninit |= ((module->nterm & 0xffff) << 16);
1509 if (bfd_mach_o_wide_p (abfd))
1511 struct mach_o_dylib_module_64_external w;
1513 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
1514 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
1515 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
1516 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
1517 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
1518 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
1519 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
1520 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
1521 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
1522 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
1523 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
1524 bfd_h_put_64 (abfd, module->objc_module_info_addr,
1525 &w.objc_module_info_addr);
1526 bfd_h_put_32 (abfd, module->objc_module_info_size,
1527 &w.objc_module_info_size);
1529 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
1534 struct mach_o_dylib_module_external n;
1536 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
1537 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
1538 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
1539 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
1540 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
1541 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
1542 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
1543 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
1544 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
1545 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
1546 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
1547 bfd_h_put_32 (abfd, module->objc_module_info_addr,
1548 &n.objc_module_info_addr);
1549 bfd_h_put_32 (abfd, module->objc_module_info_size,
1550 &n.objc_module_info_size);
1552 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
1562 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
1565 for (i = 0; i < cmd->ntoc; i++)
1567 struct mach_o_dylib_table_of_contents_external raw;
1568 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
1570 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
1571 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
1573 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1578 if (cmd->nindirectsyms > 0)
1582 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
1585 for (i = 0; i < cmd->nindirectsyms; ++i)
1587 unsigned char raw[4];
1589 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
1590 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
1595 if (cmd->nextrefsyms != 0)
1599 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
1602 for (i = 0; i < cmd->nextrefsyms; i++)
1605 unsigned char raw[4];
1606 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
1608 /* Fields isym and flags are written as bit-fields, thus we need
1609 a specific processing for endianness. */
1611 if (bfd_big_endian (abfd))
1613 v = ((ref->isym & 0xffffff) << 8);
1614 v |= ref->flags & 0xff;
1618 v = ref->isym & 0xffffff;
1619 v |= ((ref->flags & 0xff) << 24);
1622 bfd_h_put_32 (abfd, v, raw);
1623 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
1629 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
1633 struct mach_o_dysymtab_command_external raw;
1635 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
1636 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
1637 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
1638 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
1639 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
1640 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
1641 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
1642 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
1643 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
1644 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
1645 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
1646 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
1647 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
1648 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
1649 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
1650 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
1651 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
1652 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
1654 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1662 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
1664 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
1666 /* Just leave debug symbols where they are (pretend they are local, and
1667 then they will just be sorted on position). */
1668 if (s->n_type & BFD_MACH_O_N_STAB)
1671 /* Local (we should never see an undefined local AFAICT). */
1672 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
1675 /* Common symbols look like undefined externs. */
1676 if (mtyp == BFD_MACH_O_N_UNDF)
1679 /* A defined non-local, non-debug symbol. */
1684 bfd_mach_o_cf_symbols (const void *a, const void *b)
1686 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
1687 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
1688 unsigned int soa, sob;
1690 soa = bfd_mach_o_primary_symbol_sort_key (sa);
1691 sob = bfd_mach_o_primary_symbol_sort_key (sb);
1698 /* If it's local or stab, just preserve the input order. */
1701 if (sa->symbol.udata.i < sb->symbol.udata.i)
1703 if (sa->symbol.udata.i > sb->symbol.udata.i)
1706 /* This is probably an error. */
1710 /* The second sort key is name. */
1711 return strcmp (sa->symbol.name, sb->symbol.name);
1714 /* Process the symbols.
1716 This should be OK for single-module files - but it is not likely to work
1717 for multi-module shared libraries.
1719 (a) If the application has not filled in the relevant mach-o fields, make
1722 (b) Order them, like this:
1725 ( ii) external defined
1727 (iii) external undefined/common
1734 bfd_mach_o_mangle_symbols (bfd *abfd)
1737 asymbol **symbols = bfd_get_outsymbols (abfd);
1739 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
1742 for (i = 0; i < bfd_get_symcount (abfd); i++)
1744 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1746 /* We use this value, which is out-of-range as a symbol index, to signal
1747 that the mach-o-specific data are not filled in and need to be created
1748 from the bfd values. It is much preferable for the application to do
1749 this, since more meaningful diagnostics can be made that way. */
1751 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
1753 /* No symbol information has been set - therefore determine
1754 it from the bfd symbol flags/info. */
1755 if (s->symbol.section == bfd_abs_section_ptr)
1756 s->n_type = BFD_MACH_O_N_ABS;
1757 else if (s->symbol.section == bfd_und_section_ptr)
1759 s->n_type = BFD_MACH_O_N_UNDF;
1760 if (s->symbol.flags & BSF_WEAK)
1761 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
1762 /* mach-o automatically makes undefined symbols extern. */
1763 s->n_type |= BFD_MACH_O_N_EXT;
1764 s->symbol.flags |= BSF_GLOBAL;
1766 else if (s->symbol.section == bfd_com_section_ptr)
1768 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
1769 s->symbol.flags |= BSF_GLOBAL;
1772 s->n_type = BFD_MACH_O_N_SECT;
1774 if (s->symbol.flags & BSF_GLOBAL)
1775 s->n_type |= BFD_MACH_O_N_EXT;
1778 /* Put the section index in, where required. */
1779 if ((s->symbol.section != bfd_abs_section_ptr
1780 && s->symbol.section != bfd_und_section_ptr
1781 && s->symbol.section != bfd_com_section_ptr)
1782 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
1783 && s->symbol.name == NULL))
1784 s->n_sect = s->symbol.section->target_index;
1786 /* Number to preserve order for local and debug syms. */
1787 s->symbol.udata.i = i;
1790 /* Sort the symbols. */
1791 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
1792 sizeof (asymbol *), bfd_mach_o_cf_symbols);
1794 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1796 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1797 s->symbol.udata.i = i; /* renumber. */
1803 /* We build a flat table of sections, which can be re-ordered if necessary.
1804 Fill in the section number and other mach-o-specific data. */
1807 bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
1810 unsigned target_index;
1813 nsect = bfd_count_sections (abfd);
1815 /* Don't do it if it's already set - assume the application knows what it's
1817 if (mdata->nsects == nsect
1818 && (mdata->nsects == 0 || mdata->sections != NULL))
1821 mdata->nsects = nsect;
1822 mdata->sections = bfd_alloc (abfd,
1823 mdata->nsects * sizeof (bfd_mach_o_section *));
1824 if (mdata->sections == NULL)
1827 /* We need to check that this can be done... */
1829 (*_bfd_error_handler) (_("mach-o: there are too many sections (%d)"
1830 " maximum is 255,\n"), nsect);
1832 /* Create Mach-O sections.
1833 Section type, attribute and align should have been set when the
1834 section was created - either read in or specified. */
1836 for (sec = abfd->sections; sec; sec = sec->next)
1838 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
1839 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
1841 mdata->sections[target_index] = msect;
1843 msect->addr = bfd_get_section_vma (abfd, sec);
1844 msect->size = bfd_get_section_size (sec);
1846 /* Use the largest alignment set, in case it was bumped after the
1847 section was created. */
1848 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
1851 sec->target_index = ++target_index;
1858 bfd_mach_o_write_contents (bfd *abfd)
1861 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1863 /* Make the commands, if not already present. */
1864 if (mdata->header.ncmds == 0)
1865 if (!bfd_mach_o_build_commands (abfd))
1868 if (!bfd_mach_o_write_header (abfd, &mdata->header))
1871 for (i = 0; i < mdata->header.ncmds; i++)
1873 struct mach_o_load_command_external raw;
1874 bfd_mach_o_load_command *cur = &mdata->commands[i];
1875 unsigned long typeflag;
1877 typeflag = cur->type | (cur->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
1879 bfd_h_put_32 (abfd, typeflag, raw.cmd);
1880 bfd_h_put_32 (abfd, cur->len, raw.cmdsize);
1882 if (bfd_seek (abfd, cur->offset, SEEK_SET) != 0
1883 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
1888 case BFD_MACH_O_LC_SEGMENT:
1889 if (bfd_mach_o_write_segment_32 (abfd, cur) != 0)
1892 case BFD_MACH_O_LC_SEGMENT_64:
1893 if (bfd_mach_o_write_segment_64 (abfd, cur) != 0)
1896 case BFD_MACH_O_LC_SYMTAB:
1897 if (!bfd_mach_o_write_symtab (abfd, cur))
1900 case BFD_MACH_O_LC_DYSYMTAB:
1901 if (!bfd_mach_o_write_dysymtab (abfd, cur))
1904 case BFD_MACH_O_LC_SYMSEG:
1906 case BFD_MACH_O_LC_THREAD:
1907 case BFD_MACH_O_LC_UNIXTHREAD:
1908 if (bfd_mach_o_write_thread (abfd, cur) != 0)
1911 case BFD_MACH_O_LC_LOADFVMLIB:
1912 case BFD_MACH_O_LC_IDFVMLIB:
1913 case BFD_MACH_O_LC_IDENT:
1914 case BFD_MACH_O_LC_FVMFILE:
1915 case BFD_MACH_O_LC_PREPAGE:
1916 case BFD_MACH_O_LC_LOAD_DYLIB:
1917 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
1918 case BFD_MACH_O_LC_ID_DYLIB:
1919 case BFD_MACH_O_LC_REEXPORT_DYLIB:
1920 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
1921 case BFD_MACH_O_LC_LOAD_DYLINKER:
1922 case BFD_MACH_O_LC_ID_DYLINKER:
1923 case BFD_MACH_O_LC_PREBOUND_DYLIB:
1924 case BFD_MACH_O_LC_ROUTINES:
1925 case BFD_MACH_O_LC_SUB_FRAMEWORK:
1928 (*_bfd_error_handler) (_("unable to write unknown load command 0x%lx"),
1929 (unsigned long) cur->type);
1938 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
1941 bfd_mach_o_section *s = (bfd_mach_o_section *)sec->used_by_bfd;
1942 if (seg->sect_head == NULL)
1945 seg->sect_tail->next = s;
1949 /* Create section Mach-O flags from BFD flags. */
1952 bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1955 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
1957 /* Create default flags. */
1958 bfd_flags = bfd_get_section_flags (abfd, sec);
1959 if ((bfd_flags & SEC_CODE) == SEC_CODE)
1960 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
1961 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
1962 | BFD_MACH_O_S_REGULAR;
1963 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
1964 s->flags = BFD_MACH_O_S_ZEROFILL;
1965 else if (bfd_flags & SEC_DEBUGGING)
1966 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
1968 s->flags = BFD_MACH_O_S_REGULAR;
1971 /* Count the number of sections in the list for the segment named.
1973 The special case of NULL or "" for the segment name is valid for
1974 an MH_OBJECT file and means 'all sections available'.
1976 Requires that the sections table in mdata be filled in.
1978 Returns the number of sections (0 is valid).
1979 Any number > 255 signals an invalid section count, although we will,
1980 perhaps, allow the file to be written (in line with Darwin tools up
1983 A section count of (unsigned long) -1 signals a definite error. */
1985 static unsigned long
1986 bfd_mach_o_count_sections_for_seg (const char *segment,
1987 bfd_mach_o_data_struct *mdata)
1990 if (mdata == NULL || mdata->sections == NULL)
1991 return (unsigned long) -1;
1993 /* The MH_OBJECT case, all sections are considered; Although nsects is
1994 is an unsigned long, the maximum valid section count is 255 and this
1995 will have been checked already by mangle_sections. */
1996 if (segment == NULL || segment[0] == '\0')
1997 return mdata->nsects;
1999 /* Count the number of sections we see in this segment. */
2001 for (i = 0; i < mdata->nsects; ++i)
2003 bfd_mach_o_section *s = mdata->sections[i];
2004 if (strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
2011 bfd_mach_o_build_seg_command (const char *segment,
2012 bfd_mach_o_data_struct *mdata,
2013 bfd_mach_o_segment_command *seg)
2016 int is_mho = (segment == NULL || segment[0] == '\0');
2018 /* Fill segment command. */
2020 memset (seg->segname, 0, sizeof (seg->segname));
2022 strncpy (seg->segname, segment, sizeof (seg->segname));
2024 /* TODO: fix this up for non-MH_OBJECT cases. */
2028 seg->fileoff = mdata->filelen;
2030 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2031 | BFD_MACH_O_PROT_EXECUTE;
2032 seg->initprot = seg->maxprot;
2034 seg->sect_head = NULL;
2035 seg->sect_tail = NULL;
2037 /* Append sections to the segment. */
2039 for (i = 0; i < mdata->nsects; ++i)
2041 bfd_mach_o_section *s = mdata->sections[i];
2042 asection *sec = s->bfdsection;
2044 /* If we're not making an MH_OBJECT, check whether this section is from
2045 our segment, and skip if not. Otherwise, just add all sections. */
2047 && strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) != 0)
2050 bfd_mach_o_append_section_to_segment (seg, sec);
2055 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2056 seg->vmsize += s->size;
2059 /* Zerofill sections have zero file size & offset,
2060 and are not written. */
2061 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2062 || (s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2063 == BFD_MACH_O_S_GB_ZEROFILL)
2068 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2069 s->offset = mdata->filelen;
2072 sec->filepos = s->offset;
2074 mdata->filelen += s->size;
2077 seg->filesize = mdata->filelen - seg->fileoff;
2083 bfd_mach_o_build_dysymtab_command (bfd *abfd,
2084 bfd_mach_o_data_struct *mdata,
2085 bfd_mach_o_load_command *cmd)
2087 bfd_mach_o_dysymtab_command *dsym = &cmd->command.dysymtab;
2090 We are not going to try and fill these in yet and, moreover, we are
2091 going to bail if they are already set. */
2092 if (dsym->nmodtab != 0
2094 || dsym->nextrefsyms != 0)
2096 (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet"
2097 " implemented for dysymtab commands."));
2101 dsym->ilocalsym = 0;
2103 if (bfd_get_symcount (abfd) > 0)
2105 asymbol **symbols = bfd_get_outsymbols (abfd);
2108 /* Count the number of each kind of symbol. */
2109 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2111 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2112 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
2115 dsym->nlocalsym = i;
2116 dsym->iextdefsym = i;
2117 for (; i < bfd_get_symcount (abfd); ++i)
2119 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2120 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
2123 dsym->nextdefsym = i - dsym->nlocalsym;
2124 dsym->iundefsym = dsym->nextdefsym + dsym->iextdefsym;
2125 dsym->nundefsym = bfd_get_symcount (abfd)
2131 dsym->nlocalsym = 0;
2132 dsym->iextdefsym = 0;
2133 dsym->nextdefsym = 0;
2134 dsym->iundefsym = 0;
2135 dsym->nundefsym = 0;
2138 if (dsym->nindirectsyms > 0)
2142 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2143 dsym->indirectsymoff = mdata->filelen;
2144 mdata->filelen += dsym->nindirectsyms * 4;
2146 dsym->indirect_syms = bfd_zalloc (abfd, dsym->nindirectsyms * 4);
2147 if (dsym->indirect_syms == NULL)
2150 /* So fill in the indices. */
2151 for (i = 0; i < dsym->nindirectsyms; ++i)
2153 /* TODO: fill in the table. */
2160 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2161 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2162 and copy functionality. */
2165 bfd_mach_o_build_commands (bfd *abfd)
2167 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2168 unsigned wide = mach_o_wide_p (&mdata->header);
2169 int segcmd_idx = -1;
2170 int symtab_idx = -1;
2171 int dysymtab_idx = -1;
2172 unsigned long base_offset = 0;
2174 /* Return now if commands are already present. */
2175 if (mdata->header.ncmds)
2178 /* Fill in the file type, if not already set. */
2180 if (mdata->header.filetype == 0)
2182 if (abfd->flags & EXEC_P)
2183 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2184 else if (abfd->flags & DYNAMIC)
2185 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2187 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
2190 /* If hasn't already been done, flatten sections list, and sort
2191 if/when required. Must be done before the symbol table is adjusted,
2192 since that depends on properly numbered sections. */
2193 if (mdata->nsects == 0 || mdata->sections == NULL)
2194 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2197 /* Order the symbol table, fill-in/check mach-o specific fields and
2198 partition out any indirect symbols. */
2199 if (!bfd_mach_o_mangle_symbols (abfd))
2202 /* Very simple command set (only really applicable to MH_OBJECTs):
2203 All the commands are optional - present only when there is suitable data.
2204 (i.e. it is valid to have an empty file)
2206 a command (segment) to contain all the sections,
2207 command for the symbol table,
2208 a command for the dysymtab.
2210 ??? maybe we should assert that this is an MH_OBJECT? */
2212 if (mdata->nsects > 0)
2215 mdata->header.ncmds = 1;
2218 if (bfd_get_symcount (abfd) > 0)
2220 mdata->header.ncmds++;
2221 symtab_idx = segcmd_idx + 1; /* 0 if the seg command is absent. */
2225 This is a rather crude test for whether we should build a dysymtab. */
2226 if (bfd_mach_o_should_emit_dysymtab ()
2227 && bfd_get_symcount (abfd))
2229 mdata->header.ncmds++;
2230 /* If there should be a case where a dysymtab could be emitted without
2231 a symtab (seems improbable), this would need amending. */
2232 dysymtab_idx = symtab_idx + 1;
2236 base_offset = BFD_MACH_O_HEADER_64_SIZE;
2238 base_offset = BFD_MACH_O_HEADER_SIZE;
2240 /* Well, we must have a header, at least. */
2241 mdata->filelen = base_offset;
2243 /* A bit unusual, but no content is valid;
2244 as -n empty.s -o empty.o */
2245 if (mdata->header.ncmds == 0)
2248 mdata->commands = bfd_zalloc (abfd, mdata->header.ncmds
2249 * sizeof (bfd_mach_o_load_command));
2250 if (mdata->commands == NULL)
2253 if (segcmd_idx >= 0)
2255 bfd_mach_o_load_command *cmd = &mdata->commands[segcmd_idx];
2256 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2258 /* Count the segctions in the special blank segment used for MH_OBJECT. */
2259 seg->nsects = bfd_mach_o_count_sections_for_seg (NULL, mdata);
2260 if (seg->nsects == (unsigned long) -1)
2263 /* Init segment command. */
2264 cmd->offset = base_offset;
2267 cmd->type = BFD_MACH_O_LC_SEGMENT_64;
2268 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2269 + BFD_MACH_O_SECTION_64_SIZE * seg->nsects;
2273 cmd->type = BFD_MACH_O_LC_SEGMENT;
2274 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2275 + BFD_MACH_O_SECTION_SIZE * seg->nsects;
2278 cmd->type_required = FALSE;
2279 mdata->header.sizeofcmds = cmd->len;
2280 mdata->filelen += cmd->len;
2283 if (symtab_idx >= 0)
2285 /* Init symtab command. */
2286 bfd_mach_o_load_command *cmd = &mdata->commands[symtab_idx];
2288 cmd->type = BFD_MACH_O_LC_SYMTAB;
2289 cmd->offset = base_offset;
2290 if (segcmd_idx >= 0)
2291 cmd->offset += mdata->commands[segcmd_idx].len;
2293 cmd->len = sizeof (struct mach_o_symtab_command_external)
2294 + BFD_MACH_O_LC_SIZE;
2295 cmd->type_required = FALSE;
2296 mdata->header.sizeofcmds += cmd->len;
2297 mdata->filelen += cmd->len;
2300 /* If required, setup symtab command, see comment above about the quality
2302 if (dysymtab_idx >= 0)
2304 bfd_mach_o_load_command *cmd = &mdata->commands[dysymtab_idx];
2306 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
2307 if (symtab_idx >= 0)
2308 cmd->offset = mdata->commands[symtab_idx].offset
2309 + mdata->commands[symtab_idx].len;
2310 else if (segcmd_idx >= 0)
2311 cmd->offset = mdata->commands[segcmd_idx].offset
2312 + mdata->commands[segcmd_idx].len;
2314 cmd->offset = base_offset;
2316 cmd->type_required = FALSE;
2317 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2318 + BFD_MACH_O_LC_SIZE;
2320 mdata->header.sizeofcmds += cmd->len;
2321 mdata->filelen += cmd->len;
2324 /* So, now we have sized the commands and the filelen set to that.
2325 Now we can build the segment command and set the section file offsets. */
2327 && ! bfd_mach_o_build_seg_command
2328 (NULL, mdata, &mdata->commands[segcmd_idx].command.segment))
2331 /* If we're doing a dysymtab, cmd points to its load command. */
2332 if (dysymtab_idx >= 0
2333 && ! bfd_mach_o_build_dysymtab_command (abfd, mdata,
2334 &mdata->commands[dysymtab_idx]))
2337 /* The symtab command is filled in when the symtab is written. */
2341 /* Set the contents of a section. */
2344 bfd_mach_o_set_section_contents (bfd *abfd,
2346 const void * location,
2348 bfd_size_type count)
2352 /* Trying to write the first section contents will trigger the creation of
2353 the load commands if they are not already present. */
2354 if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd))
2360 pos = section->filepos + offset;
2361 if (bfd_seek (abfd, pos, SEEK_SET) != 0
2362 || bfd_bwrite (location, count, abfd) != count)
2369 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
2370 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2375 /* Make an empty symbol. This is required only because
2376 bfd_make_section_anyway wants to create a symbol for the section. */
2379 bfd_mach_o_make_empty_symbol (bfd *abfd)
2381 asymbol *new_symbol;
2383 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
2384 if (new_symbol == NULL)
2386 new_symbol->the_bfd = abfd;
2387 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
2392 bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
2394 struct mach_o_header_external raw;
2396 bfd_vma (*get32) (const void *) = NULL;
2398 /* Just read the magic number. */
2399 if (bfd_seek (abfd, 0, SEEK_SET) != 0
2400 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
2403 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
2405 header->byteorder = BFD_ENDIAN_BIG;
2406 header->magic = BFD_MACH_O_MH_MAGIC;
2407 header->version = 1;
2410 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
2412 header->byteorder = BFD_ENDIAN_LITTLE;
2413 header->magic = BFD_MACH_O_MH_MAGIC;
2414 header->version = 1;
2417 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
2419 header->byteorder = BFD_ENDIAN_BIG;
2420 header->magic = BFD_MACH_O_MH_MAGIC_64;
2421 header->version = 2;
2424 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
2426 header->byteorder = BFD_ENDIAN_LITTLE;
2427 header->magic = BFD_MACH_O_MH_MAGIC_64;
2428 header->version = 2;
2433 header->byteorder = BFD_ENDIAN_UNKNOWN;
2437 /* Once the size of the header is known, read the full header. */
2438 size = mach_o_wide_p (header) ?
2439 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2441 if (bfd_seek (abfd, 0, SEEK_SET) != 0
2442 || bfd_bread (&raw, size, abfd) != size)
2445 header->cputype = (*get32) (raw.cputype);
2446 header->cpusubtype = (*get32) (raw.cpusubtype);
2447 header->filetype = (*get32) (raw.filetype);
2448 header->ncmds = (*get32) (raw.ncmds);
2449 header->sizeofcmds = (*get32) (raw.sizeofcmds);
2450 header->flags = (*get32) (raw.flags);
2452 if (mach_o_wide_p (header))
2453 header->reserved = (*get32) (raw.reserved);
2459 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
2461 bfd_mach_o_section *s;
2462 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
2464 s = bfd_mach_o_get_mach_o_section (sec);
2468 static const mach_o_section_name_xlat * xlat;
2470 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
2473 sec->used_by_bfd = s;
2474 s->bfdsection = sec;
2476 /* Create the Darwin seg/sect name pair from the bfd name.
2477 If this is a canonical name for which a specific paiting exists
2478 there will also be defined flags, type, attribute and alignment
2480 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
2483 s->flags = xlat->macho_sectype | xlat->macho_secattr;
2484 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
2486 bfd_set_section_alignment (abfd, sec, s->align);
2487 bfd_flags = bfd_get_section_flags (abfd, sec);
2488 if (bfd_flags == SEC_NO_FLAGS)
2489 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
2492 /* Create default flags. */
2493 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
2496 return _bfd_generic_new_section_hook (abfd, sec);
2500 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
2504 bfd_mach_o_section *section;
2506 flags = bfd_get_section_flags (abfd, sec);
2507 section = bfd_mach_o_get_mach_o_section (sec);
2509 /* TODO: see if we should use the xlat system for doing this by
2510 preference and fall back to this for unknown sections. */
2512 if (flags == SEC_NO_FLAGS)
2514 /* Try to guess flags. */
2515 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
2516 flags = SEC_DEBUGGING;
2520 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2521 != BFD_MACH_O_S_ZEROFILL)
2524 if (prot & BFD_MACH_O_PROT_EXECUTE)
2526 if (prot & BFD_MACH_O_PROT_WRITE)
2528 else if (prot & BFD_MACH_O_PROT_READ)
2529 flags |= SEC_READONLY;
2535 if ((flags & SEC_DEBUGGING) == 0)
2539 if (section->offset != 0)
2540 flags |= SEC_HAS_CONTENTS;
2541 if (section->nreloc != 0)
2544 bfd_set_section_flags (abfd, sec, flags);
2546 sec->vma = section->addr;
2547 sec->lma = section->addr;
2548 sec->size = section->size;
2549 sec->filepos = section->offset;
2550 sec->alignment_power = section->align;
2551 sec->segment_mark = 0;
2552 sec->reloc_count = section->nreloc;
2553 sec->rel_filepos = section->reloff;
2557 bfd_mach_o_make_bfd_section (bfd *abfd,
2558 const unsigned char *segname,
2559 const unsigned char *sectname)
2564 bfd_mach_o_convert_section_name_to_bfd
2565 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
2569 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
2573 bfd_mach_o_read_section_32 (bfd *abfd,
2574 unsigned int offset,
2577 struct mach_o_section_32_external raw;
2579 bfd_mach_o_section *section;
2581 if (bfd_seek (abfd, offset, SEEK_SET) != 0
2582 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
2583 != BFD_MACH_O_SECTION_SIZE))
2586 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
2590 section = bfd_mach_o_get_mach_o_section (sec);
2591 memcpy (section->segname, raw.segname, sizeof (raw.segname));
2592 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
2593 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
2594 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
2595 section->addr = bfd_h_get_32 (abfd, raw.addr);
2596 section->size = bfd_h_get_32 (abfd, raw.size);
2597 section->offset = bfd_h_get_32 (abfd, raw.offset);
2598 section->align = bfd_h_get_32 (abfd, raw.align);
2599 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
2600 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
2601 section->flags = bfd_h_get_32 (abfd, raw.flags);
2602 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
2603 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
2604 section->reserved3 = 0;
2606 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
2612 bfd_mach_o_read_section_64 (bfd *abfd,
2613 unsigned int offset,
2616 struct mach_o_section_64_external raw;
2618 bfd_mach_o_section *section;
2620 if (bfd_seek (abfd, offset, SEEK_SET) != 0
2621 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
2622 != BFD_MACH_O_SECTION_64_SIZE))
2625 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
2629 section = bfd_mach_o_get_mach_o_section (sec);
2630 memcpy (section->segname, raw.segname, sizeof (raw.segname));
2631 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
2632 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
2633 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
2634 section->addr = bfd_h_get_64 (abfd, raw.addr);
2635 section->size = bfd_h_get_64 (abfd, raw.size);
2636 section->offset = bfd_h_get_32 (abfd, raw.offset);
2637 section->align = bfd_h_get_32 (abfd, raw.align);
2638 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
2639 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
2640 section->flags = bfd_h_get_32 (abfd, raw.flags);
2641 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
2642 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
2643 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
2645 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
2651 bfd_mach_o_read_section (bfd *abfd,
2652 unsigned int offset,
2657 return bfd_mach_o_read_section_64 (abfd, offset, prot);
2659 return bfd_mach_o_read_section_32 (abfd, offset, prot);
2663 bfd_mach_o_read_symtab_symbol (bfd *abfd,
2664 bfd_mach_o_symtab_command *sym,
2665 bfd_mach_o_asymbol *s,
2668 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2669 unsigned int wide = mach_o_wide_p (&mdata->header);
2670 unsigned int symwidth =
2671 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2672 unsigned int symoff = sym->symoff + (i * symwidth);
2673 struct mach_o_nlist_64_external raw;
2674 unsigned char type = -1;
2675 unsigned char section = -1;
2677 symvalue value = -1;
2678 unsigned long stroff = -1;
2679 unsigned int symtype = -1;
2681 BFD_ASSERT (sym->strtab != NULL);
2683 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
2684 || bfd_bread (&raw, symwidth, abfd) != symwidth)
2686 (*_bfd_error_handler)
2687 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
2688 symwidth, (unsigned long) symoff);
2692 stroff = bfd_h_get_32 (abfd, raw.n_strx);
2693 type = bfd_h_get_8 (abfd, raw.n_type);
2694 symtype = type & BFD_MACH_O_N_TYPE;
2695 section = bfd_h_get_8 (abfd, raw.n_sect);
2696 desc = bfd_h_get_16 (abfd, raw.n_desc);
2698 value = bfd_h_get_64 (abfd, raw.n_value);
2700 value = bfd_h_get_32 (abfd, raw.n_value);
2702 if (stroff >= sym->strsize)
2704 (*_bfd_error_handler)
2705 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
2706 (unsigned long) stroff,
2707 (unsigned long) sym->strsize);
2711 s->symbol.the_bfd = abfd;
2712 s->symbol.name = sym->strtab + stroff;
2713 s->symbol.value = value;
2714 s->symbol.flags = 0x0;
2715 s->symbol.udata.i = i;
2717 s->n_sect = section;
2720 if (type & BFD_MACH_O_N_STAB)
2722 s->symbol.flags |= BSF_DEBUGGING;
2723 s->symbol.section = bfd_und_section_ptr;
2735 if ((section > 0) && (section <= mdata->nsects))
2737 s->symbol.section = mdata->sections[section - 1]->bfdsection;
2739 s->symbol.value - mdata->sections[section - 1]->addr;
2746 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
2747 s->symbol.flags |= BSF_GLOBAL;
2749 s->symbol.flags |= BSF_LOCAL;
2753 case BFD_MACH_O_N_UNDF:
2754 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
2755 && s->symbol.value != 0)
2757 /* A common symbol. */
2758 s->symbol.section = bfd_com_section_ptr;
2759 s->symbol.flags = BSF_NO_FLAGS;
2763 s->symbol.section = bfd_und_section_ptr;
2764 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
2765 s->symbol.flags |= BSF_WEAK;
2768 case BFD_MACH_O_N_PBUD:
2769 s->symbol.section = bfd_und_section_ptr;
2771 case BFD_MACH_O_N_ABS:
2772 s->symbol.section = bfd_abs_section_ptr;
2774 case BFD_MACH_O_N_SECT:
2775 if ((section > 0) && (section <= mdata->nsects))
2777 s->symbol.section = mdata->sections[section - 1]->bfdsection;
2779 s->symbol.value - mdata->sections[section - 1]->addr;
2783 /* Mach-O uses 0 to mean "no section"; not an error. */
2786 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
2787 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
2788 s->symbol.name, section, mdata->nsects);
2790 s->symbol.section = bfd_und_section_ptr;
2793 case BFD_MACH_O_N_INDR:
2794 /* FIXME: we don't follow the BFD convention as this indirect symbol
2795 won't be followed by the referenced one. This looks harmless
2796 unless we start using the linker. */
2797 s->symbol.flags |= BSF_INDIRECT;
2798 s->symbol.section = bfd_ind_section_ptr;
2799 s->symbol.value = 0;
2802 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
2803 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
2804 s->symbol.name, symtype);
2805 s->symbol.section = bfd_und_section_ptr;
2814 bfd_mach_o_read_symtab_strtab (bfd *abfd)
2816 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2817 bfd_mach_o_symtab_command *sym = mdata->symtab;
2819 /* Fail if there is no symtab. */
2823 /* Success if already loaded. */
2827 if (abfd->flags & BFD_IN_MEMORY)
2829 struct bfd_in_memory *b;
2831 b = (struct bfd_in_memory *) abfd->iostream;
2833 if ((sym->stroff + sym->strsize) > b->size)
2835 bfd_set_error (bfd_error_file_truncated);
2838 sym->strtab = (char *) b->buffer + sym->stroff;
2842 sym->strtab = bfd_alloc (abfd, sym->strsize);
2843 if (sym->strtab == NULL)
2846 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
2847 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
2849 bfd_set_error (bfd_error_file_truncated);
2858 bfd_mach_o_read_symtab_symbols (bfd *abfd)
2860 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2861 bfd_mach_o_symtab_command *sym = mdata->symtab;
2864 if (sym == NULL || sym->symbols)
2866 /* Return now if there are no symbols or if already loaded. */
2870 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
2872 if (sym->symbols == NULL)
2874 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
2878 if (!bfd_mach_o_read_symtab_strtab (abfd))
2881 for (i = 0; i < sym->nsyms; i++)
2883 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
2891 bfd_mach_o_i386_flavour_string (unsigned int flavour)
2893 switch ((int) flavour)
2895 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
2896 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
2897 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
2898 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
2899 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
2900 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
2901 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
2902 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
2903 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
2904 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
2905 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
2906 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
2907 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
2908 default: return "UNKNOWN";
2913 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
2915 switch ((int) flavour)
2917 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
2918 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
2919 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
2920 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
2921 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
2922 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
2923 default: return "UNKNOWN";
2928 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
2930 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
2931 struct mach_o_str_command_external raw;
2932 unsigned int nameoff;
2934 BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER)
2935 || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER));
2937 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
2938 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
2941 nameoff = bfd_h_get_32 (abfd, raw.str);
2943 cmd->name_offset = command->offset + nameoff;
2944 cmd->name_len = command->len - nameoff;
2945 cmd->name_str = bfd_alloc (abfd, cmd->name_len);
2946 if (cmd->name_str == NULL)
2948 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
2949 || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len)
2955 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
2957 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
2958 struct mach_o_dylib_command_external raw;
2959 unsigned int nameoff;
2961 switch (command->type)
2963 case BFD_MACH_O_LC_LOAD_DYLIB:
2964 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
2965 case BFD_MACH_O_LC_ID_DYLIB:
2966 case BFD_MACH_O_LC_REEXPORT_DYLIB:
2967 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
2974 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
2975 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
2978 nameoff = bfd_h_get_32 (abfd, raw.name);
2979 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
2980 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
2981 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
2983 cmd->name_offset = command->offset + nameoff;
2984 cmd->name_len = command->len - nameoff;
2985 cmd->name_str = bfd_alloc (abfd, cmd->name_len);
2986 if (cmd->name_str == NULL)
2988 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
2989 || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len)
2995 bfd_mach_o_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED,
2996 bfd_mach_o_load_command *command ATTRIBUTE_UNUSED)
2998 /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */
3000 BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB);
3005 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3007 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3008 struct mach_o_fvmlib_command_external raw;
3009 unsigned int nameoff;
3011 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3012 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3015 nameoff = bfd_h_get_32 (abfd, raw.name);
3016 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3017 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3019 fvm->name_offset = command->offset + nameoff;
3020 fvm->name_len = command->len - nameoff;
3021 fvm->name_str = bfd_alloc (abfd, fvm->name_len);
3022 if (fvm->name_str == NULL)
3024 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3025 || bfd_bread (fvm->name_str, fvm->name_len, abfd) != fvm->name_len)
3031 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3033 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3034 bfd_mach_o_thread_command *cmd = &command->command.thread;
3035 unsigned int offset;
3036 unsigned int nflavours;
3039 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3040 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3042 /* Count the number of threads. */
3045 while (offset != command->len)
3047 struct mach_o_thread_command_external raw;
3049 if (offset >= command->len)
3052 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3053 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3056 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3060 /* Allocate threads. */
3061 cmd->flavours = bfd_alloc
3062 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3063 if (cmd->flavours == NULL)
3065 cmd->nflavours = nflavours;
3069 while (offset != command->len)
3071 struct mach_o_thread_command_external raw;
3073 if (offset >= command->len)
3076 if (nflavours >= cmd->nflavours)
3079 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3080 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3083 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3084 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3085 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3086 offset += cmd->flavours[nflavours].size + sizeof (raw);
3090 for (i = 0; i < nflavours; i++)
3093 unsigned int snamelen;
3095 const char *flavourstr;
3096 const char *prefix = "LC_THREAD";
3099 switch (mdata->header.cputype)
3101 case BFD_MACH_O_CPU_TYPE_POWERPC:
3102 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
3103 flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3105 case BFD_MACH_O_CPU_TYPE_I386:
3106 case BFD_MACH_O_CPU_TYPE_X86_64:
3107 flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3110 flavourstr = "UNKNOWN_ARCHITECTURE";
3114 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
3115 sname = bfd_alloc (abfd, snamelen);
3121 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
3122 if (bfd_get_section_by_name (abfd, sname) == NULL)
3127 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
3131 bfdsec->size = cmd->flavours[i].size;
3132 bfdsec->filepos = cmd->flavours[i].offset;
3133 bfdsec->alignment_power = 0x0;
3135 cmd->section = bfdsec;
3142 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
3144 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
3145 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3147 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
3150 struct mach_o_dysymtab_command_external raw;
3152 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3153 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3156 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
3157 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
3158 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
3159 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
3160 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
3161 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
3162 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
3163 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
3164 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
3165 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
3166 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
3167 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
3168 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
3169 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
3170 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
3171 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
3172 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
3173 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
3176 if (cmd->nmodtab != 0)
3179 int wide = bfd_mach_o_wide_p (abfd);
3180 unsigned int module_len = wide ? 56 : 52;
3183 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
3184 if (cmd->dylib_module == NULL)
3187 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
3190 for (i = 0; i < cmd->nmodtab; i++)
3192 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
3194 unsigned char buf[56];
3196 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
3199 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
3200 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
3201 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
3202 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
3203 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
3204 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
3205 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
3206 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
3207 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
3208 v = bfd_h_get_32 (abfd, buf +36);
3209 module->iinit = v & 0xffff;
3210 module->iterm = (v >> 16) & 0xffff;
3211 v = bfd_h_get_32 (abfd, buf + 40);
3212 module->ninit = v & 0xffff;
3213 module->nterm = (v >> 16) & 0xffff;
3216 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
3217 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
3221 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
3222 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
3231 cmd->dylib_toc = bfd_alloc
3232 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
3233 if (cmd->dylib_toc == NULL)
3236 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
3239 for (i = 0; i < cmd->ntoc; i++)
3241 struct mach_o_dylib_table_of_contents_external raw;
3242 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
3244 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3247 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
3248 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
3252 if (cmd->nindirectsyms != 0)
3256 cmd->indirect_syms = bfd_alloc
3257 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
3258 if (cmd->indirect_syms == NULL)
3261 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
3264 for (i = 0; i < cmd->nindirectsyms; i++)
3266 unsigned char raw[4];
3267 unsigned int *is = &cmd->indirect_syms[i];
3269 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
3272 *is = bfd_h_get_32 (abfd, raw);
3276 if (cmd->nextrefsyms != 0)
3281 cmd->ext_refs = bfd_alloc
3282 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
3283 if (cmd->ext_refs == NULL)
3286 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
3289 for (i = 0; i < cmd->nextrefsyms; i++)
3291 unsigned char raw[4];
3292 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
3294 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
3297 /* Fields isym and flags are written as bit-fields, thus we need
3298 a specific processing for endianness. */
3299 v = bfd_h_get_32 (abfd, raw);
3300 if (bfd_big_endian (abfd))
3302 ref->isym = (v >> 8) & 0xffffff;
3303 ref->flags = v & 0xff;
3307 ref->isym = v & 0xffffff;
3308 ref->flags = (v >> 24) & 0xff;
3313 if (mdata->dysymtab)
3315 mdata->dysymtab = cmd;
3321 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
3323 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
3324 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3325 struct mach_o_symtab_command_external raw;
3327 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
3329 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3330 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3333 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
3334 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
3335 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
3336 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
3337 symtab->symbols = NULL;
3338 symtab->strtab = NULL;
3340 if (symtab->nsyms != 0)
3341 abfd->flags |= HAS_SYMS;
3345 mdata->symtab = symtab;
3350 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
3352 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
3354 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
3356 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3357 || bfd_bread (cmd->uuid, 16, abfd) != 16)
3364 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
3366 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
3367 struct mach_o_linkedit_data_command_external raw;
3369 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3370 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3373 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
3374 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
3379 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
3381 bfd_mach_o_str_command *cmd = &command->command.str;
3382 struct mach_o_str_command_external raw;
3385 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3386 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3389 off = bfd_get_32 (abfd, raw.str);
3390 cmd->stroff = command->offset + off;
3391 cmd->str_len = command->len - off;
3392 cmd->str = bfd_alloc (abfd, cmd->str_len);
3393 if (cmd->str == NULL)
3395 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
3396 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
3402 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
3404 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
3405 struct mach_o_dyld_info_command_external raw;
3407 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3408 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3411 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
3412 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
3413 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
3414 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
3415 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
3416 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
3417 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
3418 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
3419 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
3420 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
3425 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
3427 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
3428 struct mach_o_version_min_command_external raw;
3431 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3432 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3435 ver = bfd_get_32 (abfd, raw.version);
3436 cmd->rel = ver >> 16;
3437 cmd->maj = ver >> 8;
3439 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
3444 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
3446 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
3447 struct mach_o_encryption_info_command_external raw;
3449 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3450 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3453 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
3454 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
3455 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
3460 bfd_mach_o_read_segment (bfd *abfd,
3461 bfd_mach_o_load_command *command,
3464 bfd_mach_o_segment_command *seg = &command->command.segment;
3469 struct mach_o_segment_command_64_external raw;
3471 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
3473 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3474 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3477 memcpy (seg->segname, raw.segname, 16);
3478 seg->segname[16] = '\0';
3480 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
3481 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
3482 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
3483 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
3484 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
3485 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
3486 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
3487 seg->flags = bfd_h_get_32 (abfd, raw.flags);
3491 struct mach_o_segment_command_32_external raw;
3493 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
3495 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3496 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3499 memcpy (seg->segname, raw.segname, 16);
3500 seg->segname[16] = '\0';
3502 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
3503 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
3504 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
3505 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
3506 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
3507 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
3508 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
3509 seg->flags = bfd_h_get_32 (abfd, raw.flags);
3511 seg->sect_head = NULL;
3512 seg->sect_tail = NULL;
3514 for (i = 0; i < seg->nsects; i++)
3520 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
3521 + (i * BFD_MACH_O_SECTION_64_SIZE);
3523 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
3524 + (i * BFD_MACH_O_SECTION_SIZE);
3526 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
3530 bfd_mach_o_append_section_to_segment (seg, sec);
3537 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
3539 return bfd_mach_o_read_segment (abfd, command, 0);
3543 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
3545 return bfd_mach_o_read_segment (abfd, command, 1);
3549 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
3551 struct mach_o_load_command_external raw;
3554 /* Read command type and length. */
3555 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
3556 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
3559 cmd = bfd_h_get_32 (abfd, raw.cmd);
3560 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
3561 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
3562 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
3564 switch (command->type)
3566 case BFD_MACH_O_LC_SEGMENT:
3567 if (bfd_mach_o_read_segment_32 (abfd, command) != 0)
3570 case BFD_MACH_O_LC_SEGMENT_64:
3571 if (bfd_mach_o_read_segment_64 (abfd, command) != 0)
3574 case BFD_MACH_O_LC_SYMTAB:
3575 if (bfd_mach_o_read_symtab (abfd, command) != 0)
3578 case BFD_MACH_O_LC_SYMSEG:
3580 case BFD_MACH_O_LC_THREAD:
3581 case BFD_MACH_O_LC_UNIXTHREAD:
3582 if (bfd_mach_o_read_thread (abfd, command) != 0)
3585 case BFD_MACH_O_LC_LOAD_DYLINKER:
3586 case BFD_MACH_O_LC_ID_DYLINKER:
3587 if (bfd_mach_o_read_dylinker (abfd, command) != 0)
3590 case BFD_MACH_O_LC_LOAD_DYLIB:
3591 case BFD_MACH_O_LC_ID_DYLIB:
3592 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3593 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3594 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3595 if (bfd_mach_o_read_dylib (abfd, command) != 0)
3598 case BFD_MACH_O_LC_PREBOUND_DYLIB:
3599 if (bfd_mach_o_read_prebound_dylib (abfd, command) != 0)
3602 case BFD_MACH_O_LC_LOADFVMLIB:
3603 case BFD_MACH_O_LC_IDFVMLIB:
3604 if (bfd_mach_o_read_fvmlib (abfd, command) != 0)
3607 case BFD_MACH_O_LC_IDENT:
3608 case BFD_MACH_O_LC_FVMFILE:
3609 case BFD_MACH_O_LC_PREPAGE:
3610 case BFD_MACH_O_LC_ROUTINES:
3611 case BFD_MACH_O_LC_ROUTINES_64:
3613 case BFD_MACH_O_LC_SUB_FRAMEWORK:
3614 case BFD_MACH_O_LC_SUB_UMBRELLA:
3615 case BFD_MACH_O_LC_SUB_LIBRARY:
3616 case BFD_MACH_O_LC_SUB_CLIENT:
3617 case BFD_MACH_O_LC_RPATH:
3618 if (bfd_mach_o_read_str (abfd, command) != 0)
3621 case BFD_MACH_O_LC_DYSYMTAB:
3622 if (bfd_mach_o_read_dysymtab (abfd, command) != 0)
3625 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
3626 case BFD_MACH_O_LC_PREBIND_CKSUM:
3628 case BFD_MACH_O_LC_UUID:
3629 if (bfd_mach_o_read_uuid (abfd, command) != 0)
3632 case BFD_MACH_O_LC_CODE_SIGNATURE:
3633 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
3634 case BFD_MACH_O_LC_FUNCTION_STARTS:
3635 if (bfd_mach_o_read_linkedit (abfd, command) != 0)
3638 case BFD_MACH_O_LC_ENCRYPTION_INFO:
3639 if (!bfd_mach_o_read_encryption_info (abfd, command))
3642 case BFD_MACH_O_LC_DYLD_INFO:
3643 if (bfd_mach_o_read_dyld_info (abfd, command) != 0)
3646 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
3647 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
3648 if (!bfd_mach_o_read_version_min (abfd, command))
3652 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
3653 abfd, (unsigned long) command->type);
3661 bfd_mach_o_flatten_sections (bfd *abfd)
3663 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3667 /* Count total number of sections. */
3670 for (i = 0; i < mdata->header.ncmds; i++)
3672 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
3673 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
3675 bfd_mach_o_segment_command *seg;
3677 seg = &mdata->commands[i].command.segment;
3678 mdata->nsects += seg->nsects;
3682 /* Allocate sections array. */
3683 mdata->sections = bfd_alloc (abfd,
3684 mdata->nsects * sizeof (bfd_mach_o_section *));
3686 /* Fill the array. */
3689 for (i = 0; i < mdata->header.ncmds; i++)
3691 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
3692 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
3694 bfd_mach_o_segment_command *seg;
3695 bfd_mach_o_section *sec;
3697 seg = &mdata->commands[i].command.segment;
3698 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
3700 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
3701 mdata->sections[csect++] = sec;
3707 bfd_mach_o_scan_start_address (bfd *abfd)
3709 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3710 bfd_mach_o_thread_command *cmd = NULL;
3713 for (i = 0; i < mdata->header.ncmds; i++)
3714 if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) ||
3715 (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD))
3717 cmd = &mdata->commands[i].command.thread;
3724 /* FIXME: create a subtarget hook ? */
3725 for (i = 0; i < cmd->nflavours; i++)
3727 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
3728 && (cmd->flavours[i].flavour
3729 == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32))
3731 unsigned char buf[4];
3733 if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0
3734 || bfd_bread (buf, 4, abfd) != 4)
3737 abfd->start_address = bfd_h_get_32 (abfd, buf);
3739 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
3740 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
3742 unsigned char buf[4];
3744 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
3745 || bfd_bread (buf, 4, abfd) != 4)
3748 abfd->start_address = bfd_h_get_32 (abfd, buf);
3750 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
3751 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
3753 unsigned char buf[8];
3755 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
3756 || bfd_bread (buf, 8, abfd) != 8)
3759 abfd->start_address = bfd_h_get_64 (abfd, buf);
3761 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
3762 && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
3764 unsigned char buf[8];
3766 if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0
3767 || bfd_bread (buf, 8, abfd) != 8)
3770 abfd->start_address = bfd_h_get_64 (abfd, buf);
3778 bfd_mach_o_set_arch_mach (bfd *abfd,
3779 enum bfd_architecture arch,
3780 unsigned long machine)
3782 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
3784 /* If this isn't the right architecture for this backend, and this
3785 isn't the generic backend, fail. */
3786 if (arch != bed->arch
3787 && arch != bfd_arch_unknown
3788 && bed->arch != bfd_arch_unknown)
3791 return bfd_default_set_arch_mach (abfd, arch, machine);
3795 bfd_mach_o_scan (bfd *abfd,
3796 bfd_mach_o_header *header,
3797 bfd_mach_o_data_struct *mdata)
3800 enum bfd_architecture cputype;
3801 unsigned long cpusubtype;
3802 unsigned int hdrsize;
3804 hdrsize = mach_o_wide_p (header) ?
3805 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3807 mdata->header = *header;
3809 abfd->flags = abfd->flags & BFD_IN_MEMORY;
3810 switch (header->filetype)
3812 case BFD_MACH_O_MH_OBJECT:
3813 abfd->flags |= HAS_RELOC;
3815 case BFD_MACH_O_MH_EXECUTE:
3816 abfd->flags |= EXEC_P;
3818 case BFD_MACH_O_MH_DYLIB:
3819 case BFD_MACH_O_MH_BUNDLE:
3820 abfd->flags |= DYNAMIC;
3824 abfd->tdata.mach_o_data = mdata;
3826 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
3827 &cputype, &cpusubtype);
3828 if (cputype == bfd_arch_unknown)
3830 (*_bfd_error_handler)
3831 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
3832 header->cputype, header->cpusubtype);
3836 bfd_set_arch_mach (abfd, cputype, cpusubtype);
3838 if (header->ncmds != 0)
3840 mdata->commands = bfd_alloc
3841 (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
3842 if (mdata->commands == NULL)
3845 for (i = 0; i < header->ncmds; i++)
3847 bfd_mach_o_load_command *cur = &mdata->commands[i];
3850 cur->offset = hdrsize;
3853 bfd_mach_o_load_command *prev = &mdata->commands[i - 1];
3854 cur->offset = prev->offset + prev->len;
3857 if (bfd_mach_o_read_command (abfd, cur) < 0)
3862 if (bfd_mach_o_scan_start_address (abfd) < 0)
3865 bfd_mach_o_flatten_sections (abfd);
3870 bfd_mach_o_mkobject_init (bfd *abfd)
3872 bfd_mach_o_data_struct *mdata = NULL;
3874 mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct));
3877 abfd->tdata.mach_o_data = mdata;
3879 mdata->header.magic = 0;
3880 mdata->header.cputype = 0;
3881 mdata->header.cpusubtype = 0;
3882 mdata->header.filetype = 0;
3883 mdata->header.ncmds = 0;
3884 mdata->header.sizeofcmds = 0;
3885 mdata->header.flags = 0;
3886 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
3887 mdata->commands = NULL;
3889 mdata->sections = NULL;
3890 mdata->dyn_reloc_cache = NULL;
3896 bfd_mach_o_gen_mkobject (bfd *abfd)
3898 bfd_mach_o_data_struct *mdata;
3900 if (!bfd_mach_o_mkobject_init (abfd))
3903 mdata = bfd_mach_o_get_data (abfd);
3904 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
3905 mdata->header.cputype = 0;
3906 mdata->header.cpusubtype = 0;
3907 mdata->header.byteorder = abfd->xvec->byteorder;
3908 mdata->header.version = 1;
3914 bfd_mach_o_header_p (bfd *abfd,
3915 bfd_mach_o_filetype filetype,
3916 bfd_mach_o_cpu_type cputype)
3918 struct bfd_preserve preserve;
3919 bfd_mach_o_header header;
3921 preserve.marker = NULL;
3922 if (!bfd_mach_o_read_header (abfd, &header))
3925 if (! (header.byteorder == BFD_ENDIAN_BIG
3926 || header.byteorder == BFD_ENDIAN_LITTLE))
3928 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
3929 (unsigned long) header.byteorder);
3933 if (! ((header.byteorder == BFD_ENDIAN_BIG
3934 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
3935 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
3936 || (header.byteorder == BFD_ENDIAN_LITTLE
3937 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
3938 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
3941 /* Check cputype and filetype.
3942 In case of wildcard, do not accept magics that are handled by existing
3946 if (header.cputype != cputype)
3952 if (header.filetype != filetype)
3957 switch (header.filetype)
3959 case BFD_MACH_O_MH_CORE:
3960 /* Handled by core_p */
3967 preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
3968 if (preserve.marker == NULL
3969 || !bfd_preserve_save (abfd, &preserve))
3972 if (!bfd_mach_o_scan (abfd, &header,
3973 (bfd_mach_o_data_struct *) preserve.marker))
3976 bfd_preserve_finish (abfd, &preserve);
3980 bfd_set_error (bfd_error_wrong_format);
3983 if (preserve.marker != NULL)
3984 bfd_preserve_restore (abfd, &preserve);
3988 static const bfd_target *
3989 bfd_mach_o_gen_object_p (bfd *abfd)
3991 return bfd_mach_o_header_p (abfd, 0, 0);
3994 static const bfd_target *
3995 bfd_mach_o_gen_core_p (bfd *abfd)
3997 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
4000 typedef struct mach_o_fat_archentry
4002 unsigned long cputype;
4003 unsigned long cpusubtype;
4004 unsigned long offset;
4006 unsigned long align;
4007 } mach_o_fat_archentry;
4009 typedef struct mach_o_fat_data_struct
4011 unsigned long magic;
4012 unsigned long nfat_arch;
4013 mach_o_fat_archentry *archentries;
4014 } mach_o_fat_data_struct;
4017 bfd_mach_o_archive_p (bfd *abfd)
4019 mach_o_fat_data_struct *adata = NULL;
4020 struct mach_o_fat_header_external hdr;
4023 if (bfd_seek (abfd, 0, SEEK_SET) != 0
4024 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
4027 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
4031 adata->magic = bfd_getb32 (hdr.magic);
4032 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
4033 if (adata->magic != 0xcafebabe)
4035 /* Avoid matching Java bytecode files, which have the same magic number.
4036 In the Java bytecode file format this field contains the JVM version,
4037 which starts at 43.0. */
4038 if (adata->nfat_arch > 30)
4041 adata->archentries =
4042 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
4043 if (adata->archentries == NULL)
4046 for (i = 0; i < adata->nfat_arch; i++)
4048 struct mach_o_fat_arch_external arch;
4049 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
4051 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
4052 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
4053 adata->archentries[i].offset = bfd_getb32 (arch.offset);
4054 adata->archentries[i].size = bfd_getb32 (arch.size);
4055 adata->archentries[i].align = bfd_getb32 (arch.align);
4058 abfd->tdata.mach_o_fat_data = adata;
4063 bfd_release (abfd, adata);
4064 bfd_set_error (bfd_error_wrong_format);
4068 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
4069 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
4070 Set arelt_data and origin fields too. */
4073 bfd_mach_o_fat_member_init (bfd *abfd,
4074 enum bfd_architecture arch_type,
4075 unsigned long arch_subtype,
4076 mach_o_fat_archentry *entry)
4078 struct areltdata *areltdata;
4079 /* Create the member filename. Use ARCH_NAME. */
4080 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
4084 /* Use the architecture name if known. */
4085 abfd->filename = ap->printable_name;
4089 /* Forge a uniq id. */
4090 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
4091 char *name = bfd_alloc (abfd, namelen);
4092 snprintf (name, namelen, "0x%lx-0x%lx",
4093 entry->cputype, entry->cpusubtype);
4094 abfd->filename = name;
4097 areltdata = bfd_zalloc (abfd, sizeof (struct areltdata));
4098 areltdata->parsed_size = entry->size;
4099 abfd->arelt_data = areltdata;
4100 abfd->iostream = NULL;
4101 abfd->origin = entry->offset;
4105 bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
4107 mach_o_fat_data_struct *adata;
4108 mach_o_fat_archentry *entry = NULL;
4111 enum bfd_architecture arch_type;
4112 unsigned long arch_subtype;
4114 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
4115 BFD_ASSERT (adata != NULL);
4117 /* Find index of previous entry. */
4120 /* Start at first one. */
4125 /* Find index of PREV. */
4126 for (i = 0; i < adata->nfat_arch; i++)
4128 if (adata->archentries[i].offset == prev->origin)
4132 if (i == adata->nfat_arch)
4135 bfd_set_error (bfd_error_bad_value);
4139 /* Get next entry. */
4143 if (i >= adata->nfat_arch)
4145 bfd_set_error (bfd_error_no_more_archived_files);
4149 entry = &adata->archentries[i];
4150 nbfd = _bfd_new_bfd_contained_in (archive);
4154 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
4155 &arch_type, &arch_subtype);
4157 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
4159 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
4164 /* Analogous to stat call. */
4167 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
4169 if (abfd->arelt_data == NULL)
4171 bfd_set_error (bfd_error_invalid_operation);
4178 buf->st_mode = 0644;
4179 buf->st_size = arelt_size (abfd);
4184 /* If ABFD format is FORMAT and architecture is ARCH, return it.
4185 If ABFD is a fat image containing a member that corresponds to FORMAT
4186 and ARCH, returns it.
4187 In other case, returns NULL.
4188 This function allows transparent uses of fat images. */
4191 bfd_mach_o_fat_extract (bfd *abfd,
4193 const bfd_arch_info_type *arch)
4196 mach_o_fat_data_struct *adata;
4199 if (bfd_check_format (abfd, format))
4201 if (bfd_get_arch_info (abfd) == arch)
4205 if (!bfd_check_format (abfd, bfd_archive)
4206 || abfd->xvec != &mach_o_fat_vec)
4209 /* This is a Mach-O fat image. */
4210 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
4211 BFD_ASSERT (adata != NULL);
4213 for (i = 0; i < adata->nfat_arch; i++)
4215 struct mach_o_fat_archentry *e = &adata->archentries[i];
4216 enum bfd_architecture cpu_type;
4217 unsigned long cpu_subtype;
4219 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
4220 &cpu_type, &cpu_subtype);
4221 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
4224 /* The architecture is found. */
4225 res = _bfd_new_bfd_contained_in (abfd);
4229 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
4231 if (bfd_check_format (res, format))
4233 BFD_ASSERT (bfd_get_arch_info (res) == arch);
4244 bfd_mach_o_lookup_command (bfd *abfd,
4245 bfd_mach_o_load_command_type type,
4246 bfd_mach_o_load_command **mcommand)
4248 struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd);
4249 bfd_mach_o_load_command *ncmd = NULL;
4250 unsigned int i, num;
4252 BFD_ASSERT (md != NULL);
4253 BFD_ASSERT (mcommand != NULL);
4256 for (i = 0; i < md->header.ncmds; i++)
4258 struct bfd_mach_o_load_command *cmd = &md->commands[i];
4260 if (cmd->type != type)
4273 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
4277 case BFD_MACH_O_CPU_TYPE_MC680x0:
4279 case BFD_MACH_O_CPU_TYPE_MC88000:
4281 case BFD_MACH_O_CPU_TYPE_POWERPC:
4283 case BFD_MACH_O_CPU_TYPE_I386:
4285 case BFD_MACH_O_CPU_TYPE_SPARC:
4287 case BFD_MACH_O_CPU_TYPE_I860:
4289 case BFD_MACH_O_CPU_TYPE_HPPA:
4290 return 0xc0000000 - 0x04000000;
4296 /* The following two tables should be kept, as far as possible, in order of
4297 most frequently used entries to optimize their use from gas. */
4299 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
4301 { "regular", BFD_MACH_O_S_REGULAR},
4302 { "coalesced", BFD_MACH_O_S_COALESCED},
4303 { "zerofill", BFD_MACH_O_S_ZEROFILL},
4304 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
4305 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
4306 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
4307 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
4308 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
4309 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
4310 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
4311 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
4312 { "interposing", BFD_MACH_O_S_INTERPOSING},
4313 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
4314 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
4315 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
4316 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
4317 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
4321 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
4323 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
4324 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
4325 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
4326 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
4327 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
4328 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
4329 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
4330 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
4331 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
4332 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
4333 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
4337 /* Get the section type from NAME. Return 256 if NAME is unknown. */
4340 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
4342 const bfd_mach_o_xlat_name *x;
4343 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4345 for (x = bfd_mach_o_section_type_name; x->name; x++)
4346 if (strcmp (x->name, name) == 0)
4348 /* We found it... does the target support it? */
4349 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
4350 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
4351 return x->val; /* OK. */
4353 break; /* Not supported. */
4355 /* Maximum section ID = 0xff. */
4359 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
4362 bfd_mach_o_get_section_attribute_from_name (const char *name)
4364 const bfd_mach_o_xlat_name *x;
4366 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
4367 if (strcmp (x->name, name) == 0)
4369 return (unsigned int)-1;
4373 bfd_mach_o_core_fetch_environment (bfd *abfd,
4374 unsigned char **rbuf,
4377 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4378 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
4381 for (i = 0; i < mdata->header.ncmds; i++)
4383 bfd_mach_o_load_command *cur = &mdata->commands[i];
4384 bfd_mach_o_segment_command *seg = NULL;
4386 if (cur->type != BFD_MACH_O_LC_SEGMENT)
4389 seg = &cur->command.segment;
4391 if ((seg->vmaddr + seg->vmsize) == stackaddr)
4393 unsigned long start = seg->fileoff;
4394 unsigned long end = seg->fileoff + seg->filesize;
4395 unsigned char *buf = bfd_malloc (1024);
4396 unsigned long size = 1024;
4400 bfd_size_type nread = 0;
4401 unsigned long offset;
4402 int found_nonnull = 0;
4404 if (size > (end - start))
4405 size = (end - start);
4407 buf = bfd_realloc_or_free (buf, size);
4411 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
4417 nread = bfd_bread (buf, size, abfd);
4425 for (offset = 4; offset <= size; offset += 4)
4429 val = *((unsigned long *) (buf + size - offset));
4430 if (! found_nonnull)
4435 else if (val == 0x0)
4437 unsigned long bottom;
4440 bottom = seg->fileoff + seg->filesize - offset;
4441 top = seg->fileoff + seg->filesize - 4;
4442 *rbuf = bfd_malloc (top - bottom);
4443 *rlen = top - bottom;
4445 memcpy (*rbuf, buf + size - *rlen, *rlen);
4451 if (size == (end - start))
4465 bfd_mach_o_core_file_failing_command (bfd *abfd)
4467 unsigned char *buf = NULL;
4468 unsigned int len = 0;
4471 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
4475 return (char *) buf;
4479 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
4484 static bfd_mach_o_uuid_command *
4485 bfd_mach_o_lookup_uuid_command (bfd *abfd)
4487 bfd_mach_o_load_command *uuid_cmd;
4488 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
4491 return &uuid_cmd->command.uuid;
4494 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
4497 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
4499 bfd_mach_o_uuid_command *dsym_uuid_cmd;
4502 BFD_ASSERT (uuid_cmd);
4504 if (!bfd_check_format (abfd, bfd_object))
4507 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
4508 || bfd_mach_o_get_data (abfd) == NULL
4509 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
4512 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
4513 if (dsym_uuid_cmd == NULL)
4516 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
4517 sizeof (uuid_cmd->uuid)) != 0)
4523 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
4524 The caller is responsible for closing the returned BFD object and
4525 its my_archive if the returned BFD is in a fat dSYM. */
4528 bfd_mach_o_find_dsym (const char *dsym_filename,
4529 const bfd_mach_o_uuid_command *uuid_cmd,
4530 const bfd_arch_info_type *arch)
4532 bfd *base_dsym_bfd, *dsym_bfd;
4534 BFD_ASSERT (uuid_cmd);
4536 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
4537 if (base_dsym_bfd == NULL)
4540 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
4541 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
4544 bfd_close (dsym_bfd);
4545 if (base_dsym_bfd != dsym_bfd)
4546 bfd_close (base_dsym_bfd);
4551 /* Return a BFD created from a dSYM file for ABFD.
4552 The caller is responsible for closing the returned BFD object, its
4553 filename, and its my_archive if the returned BFD is in a fat dSYM. */
4556 bfd_mach_o_follow_dsym (bfd *abfd)
4558 char *dsym_filename;
4559 bfd_mach_o_uuid_command *uuid_cmd;
4560 bfd *dsym_bfd, *base_bfd = abfd;
4561 const char *base_basename;
4563 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
4566 if (abfd->my_archive)
4567 base_bfd = abfd->my_archive;
4568 /* BFD may have been opened from a stream. */
4569 if (base_bfd->filename == NULL)
4571 bfd_set_error (bfd_error_invalid_operation);
4574 base_basename = lbasename (base_bfd->filename);
4576 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
4577 if (uuid_cmd == NULL)
4580 /* TODO: We assume the DWARF file has the same as the binary's.
4581 It seems apple's GDB checks all files in the dSYM bundle directory.
4582 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
4584 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
4585 + strlen (dsym_subdir) + 1
4586 + strlen (base_basename) + 1);
4587 sprintf (dsym_filename, "%s%s/%s",
4588 base_bfd->filename, dsym_subdir, base_basename);
4590 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
4591 bfd_get_arch_info (abfd));
4592 if (dsym_bfd == NULL)
4593 free (dsym_filename);
4599 bfd_mach_o_find_nearest_line (bfd *abfd,
4603 const char **filename_ptr,
4604 const char **functionname_ptr,
4605 unsigned int *line_ptr)
4607 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4610 switch (mdata->header.filetype)
4612 case BFD_MACH_O_MH_OBJECT:
4614 case BFD_MACH_O_MH_EXECUTE:
4615 case BFD_MACH_O_MH_DYLIB:
4616 case BFD_MACH_O_MH_BUNDLE:
4617 case BFD_MACH_O_MH_KEXT_BUNDLE:
4618 if (mdata->dwarf2_find_line_info == NULL)
4620 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
4621 /* When we couldn't find dSYM for this binary, we look for
4622 the debug information in the binary itself. In this way,
4623 we won't try finding separated dSYM again because
4624 mdata->dwarf2_find_line_info will be filled. */
4625 if (! mdata->dsym_bfd)
4627 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
4628 dwarf_debug_sections, symbols,
4629 &mdata->dwarf2_find_line_info))
4636 if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections,
4637 section, symbols, offset,
4638 filename_ptr, functionname_ptr,
4640 &mdata->dwarf2_find_line_info))
4646 bfd_mach_o_close_and_cleanup (bfd *abfd)
4648 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4649 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
4651 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
4652 bfd_mach_o_free_cached_info (abfd);
4653 if (mdata->dsym_bfd != NULL)
4655 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
4656 char *dsym_filename = (char *)(fat_bfd
4658 : mdata->dsym_bfd->filename);
4659 bfd_close (mdata->dsym_bfd);
4660 mdata->dsym_bfd = NULL;
4662 bfd_close (fat_bfd);
4663 free (dsym_filename);
4667 return _bfd_generic_close_and_cleanup (abfd);
4670 bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
4672 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4674 free (mdata->dyn_reloc_cache);
4675 mdata->dyn_reloc_cache = NULL;
4676 for (asect = abfd->sections; asect != NULL; asect = asect->next)
4678 free (asect->relocation);
4679 asect->relocation = NULL;
4685 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
4686 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
4688 #define bfd_mach_o_swap_reloc_in NULL
4689 #define bfd_mach_o_swap_reloc_out NULL
4690 #define bfd_mach_o_print_thread NULL
4691 #define bfd_mach_o_tgt_seg_table NULL
4692 #define bfd_mach_o_section_type_valid_for_tgt NULL
4694 #define TARGET_NAME mach_o_be_vec
4695 #define TARGET_STRING "mach-o-be"
4696 #define TARGET_ARCHITECTURE bfd_arch_unknown
4697 #define TARGET_BIG_ENDIAN 1
4698 #define TARGET_ARCHIVE 0
4699 #define TARGET_PRIORITY 1
4700 #include "mach-o-target.c"
4703 #undef TARGET_STRING
4704 #undef TARGET_ARCHITECTURE
4705 #undef TARGET_BIG_ENDIAN
4706 #undef TARGET_ARCHIVE
4707 #undef TARGET_PRIORITY
4709 #define TARGET_NAME mach_o_le_vec
4710 #define TARGET_STRING "mach-o-le"
4711 #define TARGET_ARCHITECTURE bfd_arch_unknown
4712 #define TARGET_BIG_ENDIAN 0
4713 #define TARGET_ARCHIVE 0
4714 #define TARGET_PRIORITY 1
4716 #include "mach-o-target.c"
4719 #undef TARGET_STRING
4720 #undef TARGET_ARCHITECTURE
4721 #undef TARGET_BIG_ENDIAN
4722 #undef TARGET_ARCHIVE
4723 #undef TARGET_PRIORITY
4725 /* Not yet handled: creating an archive. */
4726 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
4729 #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
4730 #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
4731 #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
4732 #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
4733 #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
4734 #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
4735 #define bfd_mach_o_write_armap _bfd_noarchive_write_armap
4736 #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
4737 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
4738 #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
4740 #define TARGET_NAME mach_o_fat_vec
4741 #define TARGET_STRING "mach-o-fat"
4742 #define TARGET_ARCHITECTURE bfd_arch_unknown
4743 #define TARGET_BIG_ENDIAN 1
4744 #define TARGET_ARCHIVE 1
4745 #define TARGET_PRIORITY 0
4747 #include "mach-o-target.c"
4750 #undef TARGET_STRING
4751 #undef TARGET_ARCHITECTURE
4752 #undef TARGET_BIG_ENDIAN
4753 #undef TARGET_ARCHIVE
4754 #undef TARGET_PRIORITY