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_DATA | 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, 2},
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)
1191 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1193 sec = section->bfdsection;
1194 if (sec->reloc_count == 0)
1197 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1200 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1203 /* Convert and write. */
1204 entries = section->bfdsection->orelocation;
1205 for (i = 0; i < section->nreloc; i++)
1207 arelent *rel = entries[i];
1208 struct mach_o_reloc_info_external raw;
1209 bfd_mach_o_reloc_info info, *pinfo = &info;
1211 /* Convert relocation to an intermediate representation. */
1212 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1215 /* Lower the relocation info. */
1216 if (pinfo->r_scattered)
1220 v = BFD_MACH_O_SR_SCATTERED
1221 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1222 | BFD_MACH_O_SET_SR_LENGTH(pinfo->r_length)
1223 | BFD_MACH_O_SET_SR_TYPE(pinfo->r_type)
1224 | BFD_MACH_O_SET_SR_ADDRESS(pinfo->r_address);
1225 /* Note: scattered relocs have field in reverse order... */
1226 bfd_put_32 (abfd, v, raw.r_address);
1227 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1233 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1234 v = BFD_MACH_O_SET_R_SYMBOLNUM (pinfo->r_value)
1235 | (pinfo->r_pcrel ? BFD_MACH_O_R_PCREL : 0)
1236 | BFD_MACH_O_SET_R_LENGTH (pinfo->r_length)
1237 | (pinfo->r_extern ? BFD_MACH_O_R_EXTERN : 0)
1238 | BFD_MACH_O_SET_R_TYPE (pinfo->r_type);
1239 bfd_put_32 (abfd, v, raw.r_symbolnum);
1242 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
1243 != BFD_MACH_O_RELENT_SIZE)
1250 bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
1252 struct mach_o_section_32_external raw;
1254 memcpy (raw.sectname, section->sectname, 16);
1255 memcpy (raw.segname, section->segname, 16);
1256 bfd_h_put_32 (abfd, section->addr, raw.addr);
1257 bfd_h_put_32 (abfd, section->size, raw.size);
1258 bfd_h_put_32 (abfd, section->offset, raw.offset);
1259 bfd_h_put_32 (abfd, section->align, raw.align);
1260 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1261 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1262 bfd_h_put_32 (abfd, section->flags, raw.flags);
1263 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1264 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1266 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
1267 != BFD_MACH_O_SECTION_SIZE)
1274 bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
1276 struct mach_o_section_64_external raw;
1278 memcpy (raw.sectname, section->sectname, 16);
1279 memcpy (raw.segname, section->segname, 16);
1280 bfd_h_put_64 (abfd, section->addr, raw.addr);
1281 bfd_h_put_64 (abfd, section->size, raw.size);
1282 bfd_h_put_32 (abfd, section->offset, raw.offset);
1283 bfd_h_put_32 (abfd, section->align, raw.align);
1284 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1285 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1286 bfd_h_put_32 (abfd, section->flags, raw.flags);
1287 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1288 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1289 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1291 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
1292 != BFD_MACH_O_SECTION_64_SIZE)
1299 bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1301 struct mach_o_segment_command_32_external raw;
1302 bfd_mach_o_segment_command *seg = &command->command.segment;
1303 bfd_mach_o_section *sec;
1305 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1307 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1308 if (!bfd_mach_o_write_relocs (abfd, sec))
1311 memcpy (raw.segname, seg->segname, 16);
1312 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1313 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1314 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1315 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1316 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1317 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1318 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1319 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1321 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1322 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1325 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1326 if (bfd_mach_o_write_section_32 (abfd, sec))
1333 bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1335 struct mach_o_segment_command_64_external raw;
1336 bfd_mach_o_segment_command *seg = &command->command.segment;
1337 bfd_mach_o_section *sec;
1339 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1341 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1342 if (!bfd_mach_o_write_relocs (abfd, sec))
1345 memcpy (raw.segname, seg->segname, 16);
1346 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1347 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1348 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1349 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1350 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1351 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1352 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1353 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1355 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1356 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1359 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1360 if (bfd_mach_o_write_section_64 (abfd, sec))
1367 bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1369 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1370 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1372 unsigned int wide = bfd_mach_o_wide_p (abfd);
1373 unsigned int symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
1374 struct bfd_strtab_hash *strtab;
1375 asymbol **symbols = bfd_get_outsymbols (abfd);
1377 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1379 /* Write the symbols first. */
1380 mdata->filelen = FILE_ALIGN(mdata->filelen, wide ? 3 : 2);
1381 sym->symoff = mdata->filelen;
1382 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1385 sym->nsyms = bfd_get_symcount (abfd);
1386 mdata->filelen += sym->nsyms * symlen;
1388 strtab = _bfd_stringtab_init ();
1393 /* Although we don't strictly need to do this, for compatibility with
1394 Darwin system tools, actually output an empty string for the index
1396 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1398 for (i = 0; i < sym->nsyms; i++)
1400 bfd_size_type str_index;
1401 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1403 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
1404 /* An index of 0 always means the empty string. */
1408 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
1410 if (str_index == (bfd_size_type) -1)
1416 struct mach_o_nlist_64_external raw;
1418 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1419 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1420 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1421 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1422 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1425 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1430 struct mach_o_nlist_external raw;
1432 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1433 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1434 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1435 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1436 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1439 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1443 sym->strsize = _bfd_stringtab_size (strtab);
1444 sym->stroff = mdata->filelen;
1445 mdata->filelen += sym->strsize;
1447 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
1449 _bfd_stringtab_free (strtab);
1453 struct mach_o_symtab_command_external raw;
1455 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1456 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1457 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1458 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1460 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1461 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1468 _bfd_stringtab_free (strtab);
1472 /* Write a dysymtab command.
1473 TODO: Possibly coalesce writes of smaller objects. */
1476 bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
1478 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
1480 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
1482 if (cmd->nmodtab != 0)
1486 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
1489 for (i = 0; i < cmd->nmodtab; i++)
1491 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
1495 iinit = module->iinit & 0xffff;
1496 iinit |= ((module->iterm & 0xffff) << 16);
1498 ninit = module->ninit & 0xffff;
1499 ninit |= ((module->nterm & 0xffff) << 16);
1501 if (bfd_mach_o_wide_p (abfd))
1503 struct mach_o_dylib_module_64_external w;
1505 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
1506 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
1507 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
1508 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
1509 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
1510 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
1511 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
1512 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
1513 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
1514 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
1515 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
1516 bfd_h_put_64 (abfd, module->objc_module_info_addr,
1517 &w.objc_module_info_addr);
1518 bfd_h_put_32 (abfd, module->objc_module_info_size,
1519 &w.objc_module_info_size);
1521 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
1526 struct mach_o_dylib_module_external n;
1528 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
1529 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
1530 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
1531 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
1532 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
1533 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
1534 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
1535 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
1536 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
1537 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
1538 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
1539 bfd_h_put_32 (abfd, module->objc_module_info_addr,
1540 &n.objc_module_info_addr);
1541 bfd_h_put_32 (abfd, module->objc_module_info_size,
1542 &n.objc_module_info_size);
1544 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
1554 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
1557 for (i = 0; i < cmd->ntoc; i++)
1559 struct mach_o_dylib_table_of_contents_external raw;
1560 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
1562 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
1563 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
1565 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1570 if (cmd->nindirectsyms > 0)
1574 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
1577 for (i = 0; i < cmd->nindirectsyms; ++i)
1579 unsigned char raw[4];
1581 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
1582 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
1587 if (cmd->nextrefsyms != 0)
1591 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
1594 for (i = 0; i < cmd->nextrefsyms; i++)
1597 unsigned char raw[4];
1598 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
1600 /* Fields isym and flags are written as bit-fields, thus we need
1601 a specific processing for endianness. */
1603 if (bfd_big_endian (abfd))
1605 v = ((ref->isym & 0xffffff) << 8);
1606 v |= ref->flags & 0xff;
1610 v = ref->isym & 0xffffff;
1611 v |= ((ref->flags & 0xff) << 24);
1614 bfd_h_put_32 (abfd, v, raw);
1615 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
1621 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
1625 struct mach_o_dysymtab_command_external raw;
1627 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
1628 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
1629 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
1630 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
1631 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
1632 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
1633 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
1634 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
1635 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
1636 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
1637 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
1638 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
1639 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
1640 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
1641 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
1642 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
1643 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
1644 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
1646 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1654 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
1656 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
1658 /* Just leave debug symbols where they are (pretend they are local, and
1659 then they will just be sorted on position). */
1660 if (s->n_type & BFD_MACH_O_N_STAB)
1663 /* Local (we should never see an undefined local AFAICT). */
1664 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
1667 /* Common symbols look like undefined externs. */
1668 if (mtyp == BFD_MACH_O_N_UNDF)
1671 /* A defined non-local, non-debug symbol. */
1676 bfd_mach_o_cf_symbols (const void *a, const void *b)
1678 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
1679 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
1680 unsigned int soa, sob;
1682 soa = bfd_mach_o_primary_symbol_sort_key (sa);
1683 sob = bfd_mach_o_primary_symbol_sort_key (sb);
1690 /* If it's local or stab, just preserve the input order. */
1693 if (sa->symbol.udata.i < sb->symbol.udata.i)
1695 if (sa->symbol.udata.i > sb->symbol.udata.i)
1698 /* This is probably an error. */
1702 /* The second sort key is name. */
1703 return strcmp (sa->symbol.name, sb->symbol.name);
1706 /* Process the symbols.
1708 This should be OK for single-module files - but it is not likely to work
1709 for multi-module shared libraries.
1711 (a) If the application has not filled in the relevant mach-o fields, make
1714 (b) Order them, like this:
1717 ( ii) external defined
1719 (iii) external undefined/common
1726 bfd_mach_o_mangle_symbols (bfd *abfd)
1729 asymbol **symbols = bfd_get_outsymbols (abfd);
1731 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
1734 for (i = 0; i < bfd_get_symcount (abfd); i++)
1736 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1738 /* We use this value, which is out-of-range as a symbol index, to signal
1739 that the mach-o-specific data are not filled in and need to be created
1740 from the bfd values. It is much preferable for the application to do
1741 this, since more meaningful diagnostics can be made that way. */
1743 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
1745 /* No symbol information has been set - therefore determine
1746 it from the bfd symbol flags/info. */
1747 if (s->symbol.section == bfd_abs_section_ptr)
1748 s->n_type = BFD_MACH_O_N_ABS;
1749 else if (s->symbol.section == bfd_und_section_ptr)
1751 s->n_type = BFD_MACH_O_N_UNDF;
1752 if (s->symbol.flags & BSF_WEAK)
1753 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
1754 /* mach-o automatically makes undefined symbols extern. */
1755 s->n_type |= BFD_MACH_O_N_EXT;
1756 s->symbol.flags |= BSF_GLOBAL;
1758 else if (s->symbol.section == bfd_com_section_ptr)
1760 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
1761 s->symbol.flags |= BSF_GLOBAL;
1764 s->n_type = BFD_MACH_O_N_SECT;
1766 if (s->symbol.flags & BSF_GLOBAL)
1767 s->n_type |= BFD_MACH_O_N_EXT;
1770 /* Put the section index in, where required. */
1771 if ((s->symbol.section != bfd_abs_section_ptr
1772 && s->symbol.section != bfd_und_section_ptr
1773 && s->symbol.section != bfd_com_section_ptr)
1774 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
1775 && s->symbol.name == NULL))
1776 s->n_sect = s->symbol.section->target_index;
1778 /* Number to preserve order for local and debug syms. */
1779 s->symbol.udata.i = i;
1782 /* Sort the symbols. */
1783 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
1784 sizeof (asymbol *), bfd_mach_o_cf_symbols);
1786 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1788 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1789 s->symbol.udata.i = i; /* renumber. */
1795 /* We build a flat table of sections, which can be re-ordered if necessary.
1796 Fill in the section number and other mach-o-specific data. */
1799 bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
1802 unsigned target_index;
1805 nsect = bfd_count_sections (abfd);
1807 /* Don't do it if it's already set - assume the application knows what it's
1809 if (mdata->nsects == nsect
1810 && (mdata->nsects == 0 || mdata->sections != NULL))
1813 mdata->nsects = nsect;
1814 mdata->sections = bfd_alloc (abfd,
1815 mdata->nsects * sizeof (bfd_mach_o_section *));
1816 if (mdata->sections == NULL)
1819 /* We need to check that this can be done... */
1821 (*_bfd_error_handler) (_("mach-o: there are too many sections (%d)"
1822 " maximum is 255,\n"), nsect);
1824 /* Create Mach-O sections.
1825 Section type, attribute and align should have been set when the
1826 section was created - either read in or specified. */
1828 for (sec = abfd->sections; sec; sec = sec->next)
1830 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
1831 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
1833 mdata->sections[target_index] = msect;
1835 msect->addr = bfd_get_section_vma (abfd, sec);
1836 msect->size = bfd_get_section_size (sec);
1838 /* Use the largest alignment set, in case it was bumped after the
1839 section was created. */
1840 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
1843 sec->target_index = ++target_index;
1850 bfd_mach_o_write_contents (bfd *abfd)
1853 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1855 /* Make the commands, if not already present. */
1856 if (mdata->header.ncmds == 0)
1857 if (!bfd_mach_o_build_commands (abfd))
1860 if (!bfd_mach_o_write_header (abfd, &mdata->header))
1863 for (i = 0; i < mdata->header.ncmds; i++)
1865 struct mach_o_load_command_external raw;
1866 bfd_mach_o_load_command *cur = &mdata->commands[i];
1867 unsigned long typeflag;
1869 typeflag = cur->type | (cur->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
1871 bfd_h_put_32 (abfd, typeflag, raw.cmd);
1872 bfd_h_put_32 (abfd, cur->len, raw.cmdsize);
1874 if (bfd_seek (abfd, cur->offset, SEEK_SET) != 0
1875 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
1880 case BFD_MACH_O_LC_SEGMENT:
1881 if (bfd_mach_o_write_segment_32 (abfd, cur) != 0)
1884 case BFD_MACH_O_LC_SEGMENT_64:
1885 if (bfd_mach_o_write_segment_64 (abfd, cur) != 0)
1888 case BFD_MACH_O_LC_SYMTAB:
1889 if (!bfd_mach_o_write_symtab (abfd, cur))
1892 case BFD_MACH_O_LC_DYSYMTAB:
1893 if (!bfd_mach_o_write_dysymtab (abfd, cur))
1896 case BFD_MACH_O_LC_SYMSEG:
1898 case BFD_MACH_O_LC_THREAD:
1899 case BFD_MACH_O_LC_UNIXTHREAD:
1900 if (bfd_mach_o_write_thread (abfd, cur) != 0)
1903 case BFD_MACH_O_LC_LOADFVMLIB:
1904 case BFD_MACH_O_LC_IDFVMLIB:
1905 case BFD_MACH_O_LC_IDENT:
1906 case BFD_MACH_O_LC_FVMFILE:
1907 case BFD_MACH_O_LC_PREPAGE:
1908 case BFD_MACH_O_LC_LOAD_DYLIB:
1909 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
1910 case BFD_MACH_O_LC_ID_DYLIB:
1911 case BFD_MACH_O_LC_REEXPORT_DYLIB:
1912 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
1913 case BFD_MACH_O_LC_LOAD_DYLINKER:
1914 case BFD_MACH_O_LC_ID_DYLINKER:
1915 case BFD_MACH_O_LC_PREBOUND_DYLIB:
1916 case BFD_MACH_O_LC_ROUTINES:
1917 case BFD_MACH_O_LC_SUB_FRAMEWORK:
1920 (*_bfd_error_handler) (_("unable to write unknown load command 0x%lx"),
1921 (unsigned long) cur->type);
1930 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
1933 bfd_mach_o_section *s = (bfd_mach_o_section *)sec->used_by_bfd;
1934 if (seg->sect_head == NULL)
1937 seg->sect_tail->next = s;
1941 /* Create section Mach-O flags from BFD flags. */
1944 bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1947 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
1949 /* Create default flags. */
1950 bfd_flags = bfd_get_section_flags (abfd, sec);
1951 if ((bfd_flags & SEC_CODE) == SEC_CODE)
1952 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
1953 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
1954 | BFD_MACH_O_S_REGULAR;
1955 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
1956 s->flags = BFD_MACH_O_S_ZEROFILL;
1957 else if (bfd_flags & SEC_DEBUGGING)
1958 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
1960 s->flags = BFD_MACH_O_S_REGULAR;
1963 /* Count the number of sections in the list for the segment named.
1965 The special case of NULL or "" for the segment name is valid for
1966 an MH_OBJECT file and means 'all sections available'.
1968 Requires that the sections table in mdata be filled in.
1970 Returns the number of sections (0 is valid).
1971 Any number > 255 signals an invalid section count, although we will,
1972 perhaps, allow the file to be written (in line with Darwin tools up
1975 A section count of (unsigned long) -1 signals a definite error. */
1977 static unsigned long
1978 bfd_mach_o_count_sections_for_seg (const char *segment,
1979 bfd_mach_o_data_struct *mdata)
1982 if (mdata == NULL || mdata->sections == NULL)
1983 return (unsigned long) -1;
1985 /* The MH_OBJECT case, all sections are considered; Although nsects is
1986 is an unsigned long, the maximum valid section count is 255 and this
1987 will have been checked already by mangle_sections. */
1988 if (segment == NULL || segment[0] == '\0')
1989 return mdata->nsects;
1991 /* Count the number of sections we see in this segment. */
1993 for (i = 0; i < mdata->nsects; ++i)
1995 bfd_mach_o_section *s = mdata->sections[i];
1996 if (strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
2003 bfd_mach_o_build_seg_command (const char *segment,
2004 bfd_mach_o_data_struct *mdata,
2005 bfd_mach_o_segment_command *seg)
2008 int is_mho = (segment == NULL || segment[0] == '\0');
2010 /* Fill segment command. */
2012 memset (seg->segname, 0, sizeof (seg->segname));
2014 strncpy (seg->segname, segment, sizeof (seg->segname));
2016 /* TODO: fix this up for non-MH_OBJECT cases. */
2020 seg->fileoff = mdata->filelen;
2022 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2023 | BFD_MACH_O_PROT_EXECUTE;
2024 seg->initprot = seg->maxprot;
2026 seg->sect_head = NULL;
2027 seg->sect_tail = NULL;
2029 /* Append sections to the segment. */
2031 for (i = 0; i < mdata->nsects; ++i)
2033 bfd_mach_o_section *s = mdata->sections[i];
2034 asection *sec = s->bfdsection;
2036 /* If we're not making an MH_OBJECT, check whether this section is from
2037 our segment, and skip if not. Otherwise, just add all sections. */
2039 && strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) != 0)
2042 bfd_mach_o_append_section_to_segment (seg, sec);
2047 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2048 seg->vmsize += s->size;
2051 /* Zerofill sections have zero file size & offset,
2052 and are not written. */
2053 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2054 || (s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2055 == BFD_MACH_O_S_GB_ZEROFILL)
2060 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2061 s->offset = mdata->filelen;
2064 sec->filepos = s->offset;
2066 mdata->filelen += s->size;
2069 seg->filesize = mdata->filelen - seg->fileoff;
2070 seg->filesize = FILE_ALIGN(seg->filesize, 2);
2072 /* Allocate relocation room. */
2073 mdata->filelen = FILE_ALIGN(mdata->filelen, 2);
2075 for (i = 0; i < mdata->nsects; ++i)
2077 bfd_mach_o_section *ms = mdata->sections[i];
2078 asection *sec = ms->bfdsection;
2080 if ((ms->nreloc = sec->reloc_count) == 0)
2085 sec->rel_filepos = mdata->filelen;
2086 ms->reloff = sec->rel_filepos;
2087 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2093 /* Count the number of indirect symbols in the image.
2094 Requires that the sections are in their final order. */
2097 bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
2100 unsigned int nisyms = 0;
2102 for (i = 0; i < mdata->nsects; ++i)
2104 bfd_mach_o_section *sec = mdata->sections[i];
2106 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2108 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2109 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2110 case BFD_MACH_O_S_SYMBOL_STUBS:
2111 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2121 bfd_mach_o_build_dysymtab_command (bfd *abfd,
2122 bfd_mach_o_data_struct *mdata,
2123 bfd_mach_o_load_command *cmd)
2125 bfd_mach_o_dysymtab_command *dsym = &cmd->command.dysymtab;
2128 We are not going to try and fill these in yet and, moreover, we are
2129 going to bail if they are already set. */
2130 if (dsym->nmodtab != 0
2132 || dsym->nextrefsyms != 0)
2134 (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet"
2135 " implemented for dysymtab commands."));
2139 dsym->ilocalsym = 0;
2141 if (bfd_get_symcount (abfd) > 0)
2143 asymbol **symbols = bfd_get_outsymbols (abfd);
2146 /* Count the number of each kind of symbol. */
2147 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2149 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2150 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
2153 dsym->nlocalsym = i;
2154 dsym->iextdefsym = i;
2155 for (; i < bfd_get_symcount (abfd); ++i)
2157 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2158 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
2161 dsym->nextdefsym = i - dsym->nlocalsym;
2162 dsym->iundefsym = dsym->nextdefsym + dsym->iextdefsym;
2163 dsym->nundefsym = bfd_get_symcount (abfd)
2169 dsym->nlocalsym = 0;
2170 dsym->iextdefsym = 0;
2171 dsym->nextdefsym = 0;
2172 dsym->iundefsym = 0;
2173 dsym->nundefsym = 0;
2176 dsym->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
2177 if (dsym->nindirectsyms > 0)
2182 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2183 dsym->indirectsymoff = mdata->filelen;
2184 mdata->filelen += dsym->nindirectsyms * 4;
2186 dsym->indirect_syms = bfd_zalloc (abfd, dsym->nindirectsyms * 4);
2187 if (dsym->indirect_syms == NULL)
2191 for (i = 0; i < mdata->nsects; ++i)
2193 bfd_mach_o_section *sec = mdata->sections[i];
2195 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2197 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2198 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2199 case BFD_MACH_O_S_SYMBOL_STUBS:
2202 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
2204 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2205 if (isyms == NULL || num == 0)
2207 /* Record the starting index in the reserved1 field. */
2209 for (j = 0; j < num; j++, n++)
2211 if (isyms[j] == NULL)
2212 dsym->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
2213 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
2214 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
2215 dsym->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
2216 | BFD_MACH_O_INDIRECT_SYM_ABS;
2218 dsym->indirect_syms[n] = isyms[j]->symbol.udata.i;
2231 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2232 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2233 and copy functionality. */
2236 bfd_mach_o_build_commands (bfd *abfd)
2238 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2239 unsigned wide = mach_o_wide_p (&mdata->header);
2240 int segcmd_idx = -1;
2241 int symtab_idx = -1;
2242 int dysymtab_idx = -1;
2243 unsigned long base_offset = 0;
2245 /* Return now if commands are already present. */
2246 if (mdata->header.ncmds)
2249 /* Fill in the file type, if not already set. */
2251 if (mdata->header.filetype == 0)
2253 if (abfd->flags & EXEC_P)
2254 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2255 else if (abfd->flags & DYNAMIC)
2256 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2258 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
2261 /* If hasn't already been done, flatten sections list, and sort
2262 if/when required. Must be done before the symbol table is adjusted,
2263 since that depends on properly numbered sections. */
2264 if (mdata->nsects == 0 || mdata->sections == NULL)
2265 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2268 /* Order the symbol table, fill-in/check mach-o specific fields and
2269 partition out any indirect symbols. */
2270 if (!bfd_mach_o_mangle_symbols (abfd))
2273 /* Very simple command set (only really applicable to MH_OBJECTs):
2274 All the commands are optional - present only when there is suitable data.
2275 (i.e. it is valid to have an empty file)
2277 a command (segment) to contain all the sections,
2278 command for the symbol table,
2279 a command for the dysymtab.
2281 ??? maybe we should assert that this is an MH_OBJECT? */
2283 if (mdata->nsects > 0)
2286 mdata->header.ncmds = 1;
2289 if (bfd_get_symcount (abfd) > 0)
2291 mdata->header.ncmds++;
2292 symtab_idx = segcmd_idx + 1; /* 0 if the seg command is absent. */
2296 This is a rather crude test for whether we should build a dysymtab. */
2297 if (bfd_mach_o_should_emit_dysymtab ()
2298 && bfd_get_symcount (abfd))
2300 mdata->header.ncmds++;
2301 /* If there should be a case where a dysymtab could be emitted without
2302 a symtab (seems improbable), this would need amending. */
2303 dysymtab_idx = symtab_idx + 1;
2307 base_offset = BFD_MACH_O_HEADER_64_SIZE;
2309 base_offset = BFD_MACH_O_HEADER_SIZE;
2311 /* Well, we must have a header, at least. */
2312 mdata->filelen = base_offset;
2314 /* A bit unusual, but no content is valid;
2315 as -n empty.s -o empty.o */
2316 if (mdata->header.ncmds == 0)
2319 mdata->commands = bfd_zalloc (abfd, mdata->header.ncmds
2320 * sizeof (bfd_mach_o_load_command));
2321 if (mdata->commands == NULL)
2324 if (segcmd_idx >= 0)
2326 bfd_mach_o_load_command *cmd = &mdata->commands[segcmd_idx];
2327 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2329 /* Count the segctions in the special blank segment used for MH_OBJECT. */
2330 seg->nsects = bfd_mach_o_count_sections_for_seg (NULL, mdata);
2331 if (seg->nsects == (unsigned long) -1)
2334 /* Init segment command. */
2335 cmd->offset = base_offset;
2338 cmd->type = BFD_MACH_O_LC_SEGMENT_64;
2339 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2340 + BFD_MACH_O_SECTION_64_SIZE * seg->nsects;
2344 cmd->type = BFD_MACH_O_LC_SEGMENT;
2345 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2346 + BFD_MACH_O_SECTION_SIZE * seg->nsects;
2349 cmd->type_required = FALSE;
2350 mdata->header.sizeofcmds = cmd->len;
2351 mdata->filelen += cmd->len;
2354 if (symtab_idx >= 0)
2356 /* Init symtab command. */
2357 bfd_mach_o_load_command *cmd = &mdata->commands[symtab_idx];
2359 cmd->type = BFD_MACH_O_LC_SYMTAB;
2360 cmd->offset = base_offset;
2361 if (segcmd_idx >= 0)
2362 cmd->offset += mdata->commands[segcmd_idx].len;
2364 cmd->len = sizeof (struct mach_o_symtab_command_external)
2365 + BFD_MACH_O_LC_SIZE;
2366 cmd->type_required = FALSE;
2367 mdata->header.sizeofcmds += cmd->len;
2368 mdata->filelen += cmd->len;
2371 /* If required, setup symtab command, see comment above about the quality
2373 if (dysymtab_idx >= 0)
2375 bfd_mach_o_load_command *cmd = &mdata->commands[dysymtab_idx];
2377 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
2378 if (symtab_idx >= 0)
2379 cmd->offset = mdata->commands[symtab_idx].offset
2380 + mdata->commands[symtab_idx].len;
2381 else if (segcmd_idx >= 0)
2382 cmd->offset = mdata->commands[segcmd_idx].offset
2383 + mdata->commands[segcmd_idx].len;
2385 cmd->offset = base_offset;
2387 cmd->type_required = FALSE;
2388 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2389 + BFD_MACH_O_LC_SIZE;
2391 mdata->header.sizeofcmds += cmd->len;
2392 mdata->filelen += cmd->len;
2395 /* So, now we have sized the commands and the filelen set to that.
2396 Now we can build the segment command and set the section file offsets. */
2398 && ! bfd_mach_o_build_seg_command
2399 (NULL, mdata, &mdata->commands[segcmd_idx].command.segment))
2402 /* If we're doing a dysymtab, cmd points to its load command. */
2403 if (dysymtab_idx >= 0
2404 && ! bfd_mach_o_build_dysymtab_command (abfd, mdata,
2405 &mdata->commands[dysymtab_idx]))
2408 /* The symtab command is filled in when the symtab is written. */
2412 /* Set the contents of a section. */
2415 bfd_mach_o_set_section_contents (bfd *abfd,
2417 const void * location,
2419 bfd_size_type count)
2423 /* Trying to write the first section contents will trigger the creation of
2424 the load commands if they are not already present. */
2425 if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd))
2431 pos = section->filepos + offset;
2432 if (bfd_seek (abfd, pos, SEEK_SET) != 0
2433 || bfd_bwrite (location, count, abfd) != count)
2440 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
2441 struct bfd_link_info *info ATTRIBUTE_UNUSED)
2446 /* Make an empty symbol. This is required only because
2447 bfd_make_section_anyway wants to create a symbol for the section. */
2450 bfd_mach_o_make_empty_symbol (bfd *abfd)
2452 asymbol *new_symbol;
2454 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
2455 if (new_symbol == NULL)
2457 new_symbol->the_bfd = abfd;
2458 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
2463 bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
2465 struct mach_o_header_external raw;
2467 bfd_vma (*get32) (const void *) = NULL;
2469 /* Just read the magic number. */
2470 if (bfd_seek (abfd, 0, SEEK_SET) != 0
2471 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
2474 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
2476 header->byteorder = BFD_ENDIAN_BIG;
2477 header->magic = BFD_MACH_O_MH_MAGIC;
2478 header->version = 1;
2481 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
2483 header->byteorder = BFD_ENDIAN_LITTLE;
2484 header->magic = BFD_MACH_O_MH_MAGIC;
2485 header->version = 1;
2488 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
2490 header->byteorder = BFD_ENDIAN_BIG;
2491 header->magic = BFD_MACH_O_MH_MAGIC_64;
2492 header->version = 2;
2495 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
2497 header->byteorder = BFD_ENDIAN_LITTLE;
2498 header->magic = BFD_MACH_O_MH_MAGIC_64;
2499 header->version = 2;
2504 header->byteorder = BFD_ENDIAN_UNKNOWN;
2508 /* Once the size of the header is known, read the full header. */
2509 size = mach_o_wide_p (header) ?
2510 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2512 if (bfd_seek (abfd, 0, SEEK_SET) != 0
2513 || bfd_bread (&raw, size, abfd) != size)
2516 header->cputype = (*get32) (raw.cputype);
2517 header->cpusubtype = (*get32) (raw.cpusubtype);
2518 header->filetype = (*get32) (raw.filetype);
2519 header->ncmds = (*get32) (raw.ncmds);
2520 header->sizeofcmds = (*get32) (raw.sizeofcmds);
2521 header->flags = (*get32) (raw.flags);
2523 if (mach_o_wide_p (header))
2524 header->reserved = (*get32) (raw.reserved);
2526 header->reserved = 0;
2532 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
2534 bfd_mach_o_section *s;
2535 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
2537 s = bfd_mach_o_get_mach_o_section (sec);
2541 static const mach_o_section_name_xlat * xlat;
2543 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
2546 sec->used_by_bfd = s;
2547 s->bfdsection = sec;
2549 /* Create the Darwin seg/sect name pair from the bfd name.
2550 If this is a canonical name for which a specific paiting exists
2551 there will also be defined flags, type, attribute and alignment
2553 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
2556 s->flags = xlat->macho_sectype | xlat->macho_secattr;
2557 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
2559 bfd_set_section_alignment (abfd, sec, s->align);
2560 bfd_flags = bfd_get_section_flags (abfd, sec);
2561 if (bfd_flags == SEC_NO_FLAGS)
2562 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
2565 /* Create default flags. */
2566 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
2569 return _bfd_generic_new_section_hook (abfd, sec);
2573 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
2577 bfd_mach_o_section *section;
2579 flags = bfd_get_section_flags (abfd, sec);
2580 section = bfd_mach_o_get_mach_o_section (sec);
2582 /* TODO: see if we should use the xlat system for doing this by
2583 preference and fall back to this for unknown sections. */
2585 if (flags == SEC_NO_FLAGS)
2587 /* Try to guess flags. */
2588 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
2589 flags = SEC_DEBUGGING;
2593 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2594 != BFD_MACH_O_S_ZEROFILL)
2597 if (prot & BFD_MACH_O_PROT_EXECUTE)
2599 if (prot & BFD_MACH_O_PROT_WRITE)
2601 else if (prot & BFD_MACH_O_PROT_READ)
2602 flags |= SEC_READONLY;
2608 if ((flags & SEC_DEBUGGING) == 0)
2612 if (section->offset != 0)
2613 flags |= SEC_HAS_CONTENTS;
2614 if (section->nreloc != 0)
2617 bfd_set_section_flags (abfd, sec, flags);
2619 sec->vma = section->addr;
2620 sec->lma = section->addr;
2621 sec->size = section->size;
2622 sec->filepos = section->offset;
2623 sec->alignment_power = section->align;
2624 sec->segment_mark = 0;
2625 sec->reloc_count = section->nreloc;
2626 sec->rel_filepos = section->reloff;
2630 bfd_mach_o_make_bfd_section (bfd *abfd,
2631 const unsigned char *segname,
2632 const unsigned char *sectname)
2637 bfd_mach_o_convert_section_name_to_bfd
2638 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
2642 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
2646 bfd_mach_o_read_section_32 (bfd *abfd,
2647 unsigned int offset,
2650 struct mach_o_section_32_external raw;
2652 bfd_mach_o_section *section;
2654 if (bfd_seek (abfd, offset, SEEK_SET) != 0
2655 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
2656 != BFD_MACH_O_SECTION_SIZE))
2659 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
2663 section = bfd_mach_o_get_mach_o_section (sec);
2664 memcpy (section->segname, raw.segname, sizeof (raw.segname));
2665 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
2666 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
2667 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
2668 section->addr = bfd_h_get_32 (abfd, raw.addr);
2669 section->size = bfd_h_get_32 (abfd, raw.size);
2670 section->offset = bfd_h_get_32 (abfd, raw.offset);
2671 section->align = bfd_h_get_32 (abfd, raw.align);
2672 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
2673 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
2674 section->flags = bfd_h_get_32 (abfd, raw.flags);
2675 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
2676 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
2677 section->reserved3 = 0;
2679 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
2685 bfd_mach_o_read_section_64 (bfd *abfd,
2686 unsigned int offset,
2689 struct mach_o_section_64_external raw;
2691 bfd_mach_o_section *section;
2693 if (bfd_seek (abfd, offset, SEEK_SET) != 0
2694 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
2695 != BFD_MACH_O_SECTION_64_SIZE))
2698 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
2702 section = bfd_mach_o_get_mach_o_section (sec);
2703 memcpy (section->segname, raw.segname, sizeof (raw.segname));
2704 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
2705 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
2706 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
2707 section->addr = bfd_h_get_64 (abfd, raw.addr);
2708 section->size = bfd_h_get_64 (abfd, raw.size);
2709 section->offset = bfd_h_get_32 (abfd, raw.offset);
2710 section->align = bfd_h_get_32 (abfd, raw.align);
2711 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
2712 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
2713 section->flags = bfd_h_get_32 (abfd, raw.flags);
2714 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
2715 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
2716 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
2718 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
2724 bfd_mach_o_read_section (bfd *abfd,
2725 unsigned int offset,
2730 return bfd_mach_o_read_section_64 (abfd, offset, prot);
2732 return bfd_mach_o_read_section_32 (abfd, offset, prot);
2736 bfd_mach_o_read_symtab_symbol (bfd *abfd,
2737 bfd_mach_o_symtab_command *sym,
2738 bfd_mach_o_asymbol *s,
2741 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2742 unsigned int wide = mach_o_wide_p (&mdata->header);
2743 unsigned int symwidth =
2744 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2745 unsigned int symoff = sym->symoff + (i * symwidth);
2746 struct mach_o_nlist_64_external raw;
2747 unsigned char type = -1;
2748 unsigned char section = -1;
2750 symvalue value = -1;
2751 unsigned long stroff = -1;
2752 unsigned int symtype = -1;
2754 BFD_ASSERT (sym->strtab != NULL);
2756 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
2757 || bfd_bread (&raw, symwidth, abfd) != symwidth)
2759 (*_bfd_error_handler)
2760 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
2761 symwidth, (unsigned long) symoff);
2765 stroff = bfd_h_get_32 (abfd, raw.n_strx);
2766 type = bfd_h_get_8 (abfd, raw.n_type);
2767 symtype = type & BFD_MACH_O_N_TYPE;
2768 section = bfd_h_get_8 (abfd, raw.n_sect);
2769 desc = bfd_h_get_16 (abfd, raw.n_desc);
2771 value = bfd_h_get_64 (abfd, raw.n_value);
2773 value = bfd_h_get_32 (abfd, raw.n_value);
2775 if (stroff >= sym->strsize)
2777 (*_bfd_error_handler)
2778 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
2779 (unsigned long) stroff,
2780 (unsigned long) sym->strsize);
2784 s->symbol.the_bfd = abfd;
2785 s->symbol.name = sym->strtab + stroff;
2786 s->symbol.value = value;
2787 s->symbol.flags = 0x0;
2788 s->symbol.udata.i = i;
2790 s->n_sect = section;
2793 if (type & BFD_MACH_O_N_STAB)
2795 s->symbol.flags |= BSF_DEBUGGING;
2796 s->symbol.section = bfd_und_section_ptr;
2808 if ((section > 0) && (section <= mdata->nsects))
2810 s->symbol.section = mdata->sections[section - 1]->bfdsection;
2812 s->symbol.value - mdata->sections[section - 1]->addr;
2819 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
2820 s->symbol.flags |= BSF_GLOBAL;
2822 s->symbol.flags |= BSF_LOCAL;
2826 case BFD_MACH_O_N_UNDF:
2827 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
2828 && s->symbol.value != 0)
2830 /* A common symbol. */
2831 s->symbol.section = bfd_com_section_ptr;
2832 s->symbol.flags = BSF_NO_FLAGS;
2836 s->symbol.section = bfd_und_section_ptr;
2837 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
2838 s->symbol.flags |= BSF_WEAK;
2841 case BFD_MACH_O_N_PBUD:
2842 s->symbol.section = bfd_und_section_ptr;
2844 case BFD_MACH_O_N_ABS:
2845 s->symbol.section = bfd_abs_section_ptr;
2847 case BFD_MACH_O_N_SECT:
2848 if ((section > 0) && (section <= mdata->nsects))
2850 s->symbol.section = mdata->sections[section - 1]->bfdsection;
2852 s->symbol.value - mdata->sections[section - 1]->addr;
2856 /* Mach-O uses 0 to mean "no section"; not an error. */
2859 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
2860 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
2861 s->symbol.name, section, mdata->nsects);
2863 s->symbol.section = bfd_und_section_ptr;
2866 case BFD_MACH_O_N_INDR:
2867 /* FIXME: we don't follow the BFD convention as this indirect symbol
2868 won't be followed by the referenced one. This looks harmless
2869 unless we start using the linker. */
2870 s->symbol.flags |= BSF_INDIRECT;
2871 s->symbol.section = bfd_ind_section_ptr;
2872 s->symbol.value = 0;
2875 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
2876 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
2877 s->symbol.name, symtype);
2878 s->symbol.section = bfd_und_section_ptr;
2887 bfd_mach_o_read_symtab_strtab (bfd *abfd)
2889 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2890 bfd_mach_o_symtab_command *sym = mdata->symtab;
2892 /* Fail if there is no symtab. */
2896 /* Success if already loaded. */
2900 if (abfd->flags & BFD_IN_MEMORY)
2902 struct bfd_in_memory *b;
2904 b = (struct bfd_in_memory *) abfd->iostream;
2906 if ((sym->stroff + sym->strsize) > b->size)
2908 bfd_set_error (bfd_error_file_truncated);
2911 sym->strtab = (char *) b->buffer + sym->stroff;
2915 sym->strtab = bfd_alloc (abfd, sym->strsize);
2916 if (sym->strtab == NULL)
2919 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
2920 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
2922 bfd_set_error (bfd_error_file_truncated);
2931 bfd_mach_o_read_symtab_symbols (bfd *abfd)
2933 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2934 bfd_mach_o_symtab_command *sym = mdata->symtab;
2937 if (sym == NULL || sym->symbols)
2939 /* Return now if there are no symbols or if already loaded. */
2943 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
2945 if (sym->symbols == NULL)
2947 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
2951 if (!bfd_mach_o_read_symtab_strtab (abfd))
2954 for (i = 0; i < sym->nsyms; i++)
2956 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
2964 bfd_mach_o_i386_flavour_string (unsigned int flavour)
2966 switch ((int) flavour)
2968 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
2969 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
2970 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
2971 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
2972 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
2973 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
2974 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
2975 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
2976 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
2977 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
2978 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
2979 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
2980 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
2981 default: return "UNKNOWN";
2986 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
2988 switch ((int) flavour)
2990 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
2991 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
2992 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
2993 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
2994 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
2995 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
2996 default: return "UNKNOWN";
3001 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3003 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
3004 struct mach_o_str_command_external raw;
3005 unsigned int nameoff;
3007 BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER)
3008 || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER));
3010 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3011 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3014 nameoff = bfd_h_get_32 (abfd, raw.str);
3016 cmd->name_offset = command->offset + nameoff;
3017 cmd->name_len = command->len - nameoff;
3018 cmd->name_str = bfd_alloc (abfd, cmd->name_len);
3019 if (cmd->name_str == NULL)
3021 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3022 || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len)
3028 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3030 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
3031 struct mach_o_dylib_command_external raw;
3032 unsigned int nameoff;
3034 switch (command->type)
3036 case BFD_MACH_O_LC_LOAD_DYLIB:
3037 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3038 case BFD_MACH_O_LC_ID_DYLIB:
3039 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3040 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3047 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3048 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3051 nameoff = bfd_h_get_32 (abfd, raw.name);
3052 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3053 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3054 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3056 cmd->name_offset = command->offset + nameoff;
3057 cmd->name_len = command->len - nameoff;
3058 cmd->name_str = bfd_alloc (abfd, cmd->name_len);
3059 if (cmd->name_str == NULL)
3061 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3062 || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len)
3068 bfd_mach_o_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED,
3069 bfd_mach_o_load_command *command ATTRIBUTE_UNUSED)
3071 /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */
3073 BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB);
3078 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3080 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3081 struct mach_o_fvmlib_command_external raw;
3082 unsigned int nameoff;
3084 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3085 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3088 nameoff = bfd_h_get_32 (abfd, raw.name);
3089 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3090 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3092 fvm->name_offset = command->offset + nameoff;
3093 fvm->name_len = command->len - nameoff;
3094 fvm->name_str = bfd_alloc (abfd, fvm->name_len);
3095 if (fvm->name_str == NULL)
3097 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3098 || bfd_bread (fvm->name_str, fvm->name_len, abfd) != fvm->name_len)
3104 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3106 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3107 bfd_mach_o_thread_command *cmd = &command->command.thread;
3108 unsigned int offset;
3109 unsigned int nflavours;
3112 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3113 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3115 /* Count the number of threads. */
3118 while (offset != command->len)
3120 struct mach_o_thread_command_external raw;
3122 if (offset >= command->len)
3125 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3126 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3129 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3133 /* Allocate threads. */
3134 cmd->flavours = bfd_alloc
3135 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3136 if (cmd->flavours == NULL)
3138 cmd->nflavours = nflavours;
3142 while (offset != command->len)
3144 struct mach_o_thread_command_external raw;
3146 if (offset >= command->len)
3149 if (nflavours >= cmd->nflavours)
3152 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3153 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3156 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3157 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3158 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3159 offset += cmd->flavours[nflavours].size + sizeof (raw);
3163 for (i = 0; i < nflavours; i++)
3166 unsigned int snamelen;
3168 const char *flavourstr;
3169 const char *prefix = "LC_THREAD";
3172 switch (mdata->header.cputype)
3174 case BFD_MACH_O_CPU_TYPE_POWERPC:
3175 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
3176 flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3178 case BFD_MACH_O_CPU_TYPE_I386:
3179 case BFD_MACH_O_CPU_TYPE_X86_64:
3180 flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3183 flavourstr = "UNKNOWN_ARCHITECTURE";
3187 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
3188 sname = bfd_alloc (abfd, snamelen);
3194 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
3195 if (bfd_get_section_by_name (abfd, sname) == NULL)
3200 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
3204 bfdsec->size = cmd->flavours[i].size;
3205 bfdsec->filepos = cmd->flavours[i].offset;
3206 bfdsec->alignment_power = 0x0;
3208 cmd->section = bfdsec;
3215 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
3217 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
3218 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3220 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
3223 struct mach_o_dysymtab_command_external raw;
3225 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3226 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3229 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
3230 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
3231 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
3232 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
3233 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
3234 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
3235 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
3236 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
3237 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
3238 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
3239 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
3240 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
3241 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
3242 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
3243 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
3244 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
3245 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
3246 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
3249 if (cmd->nmodtab != 0)
3252 int wide = bfd_mach_o_wide_p (abfd);
3253 unsigned int module_len = wide ? 56 : 52;
3256 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
3257 if (cmd->dylib_module == NULL)
3260 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
3263 for (i = 0; i < cmd->nmodtab; i++)
3265 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
3267 unsigned char buf[56];
3269 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
3272 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
3273 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
3274 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
3275 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
3276 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
3277 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
3278 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
3279 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
3280 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
3281 v = bfd_h_get_32 (abfd, buf +36);
3282 module->iinit = v & 0xffff;
3283 module->iterm = (v >> 16) & 0xffff;
3284 v = bfd_h_get_32 (abfd, buf + 40);
3285 module->ninit = v & 0xffff;
3286 module->nterm = (v >> 16) & 0xffff;
3289 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
3290 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
3294 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
3295 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
3304 cmd->dylib_toc = bfd_alloc
3305 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
3306 if (cmd->dylib_toc == NULL)
3309 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
3312 for (i = 0; i < cmd->ntoc; i++)
3314 struct mach_o_dylib_table_of_contents_external raw;
3315 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
3317 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3320 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
3321 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
3325 if (cmd->nindirectsyms != 0)
3329 cmd->indirect_syms = bfd_alloc
3330 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
3331 if (cmd->indirect_syms == NULL)
3334 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
3337 for (i = 0; i < cmd->nindirectsyms; i++)
3339 unsigned char raw[4];
3340 unsigned int *is = &cmd->indirect_syms[i];
3342 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
3345 *is = bfd_h_get_32 (abfd, raw);
3349 if (cmd->nextrefsyms != 0)
3354 cmd->ext_refs = bfd_alloc
3355 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
3356 if (cmd->ext_refs == NULL)
3359 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
3362 for (i = 0; i < cmd->nextrefsyms; i++)
3364 unsigned char raw[4];
3365 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
3367 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
3370 /* Fields isym and flags are written as bit-fields, thus we need
3371 a specific processing for endianness. */
3372 v = bfd_h_get_32 (abfd, raw);
3373 if (bfd_big_endian (abfd))
3375 ref->isym = (v >> 8) & 0xffffff;
3376 ref->flags = v & 0xff;
3380 ref->isym = v & 0xffffff;
3381 ref->flags = (v >> 24) & 0xff;
3386 if (mdata->dysymtab)
3388 mdata->dysymtab = cmd;
3394 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
3396 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
3397 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3398 struct mach_o_symtab_command_external raw;
3400 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
3402 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3403 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3406 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
3407 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
3408 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
3409 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
3410 symtab->symbols = NULL;
3411 symtab->strtab = NULL;
3413 if (symtab->nsyms != 0)
3414 abfd->flags |= HAS_SYMS;
3418 mdata->symtab = symtab;
3423 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
3425 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
3427 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
3429 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3430 || bfd_bread (cmd->uuid, 16, abfd) != 16)
3437 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
3439 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
3440 struct mach_o_linkedit_data_command_external raw;
3442 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3443 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3446 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
3447 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
3452 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
3454 bfd_mach_o_str_command *cmd = &command->command.str;
3455 struct mach_o_str_command_external raw;
3458 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3459 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3462 off = bfd_get_32 (abfd, raw.str);
3463 cmd->stroff = command->offset + off;
3464 cmd->str_len = command->len - off;
3465 cmd->str = bfd_alloc (abfd, cmd->str_len);
3466 if (cmd->str == NULL)
3468 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
3469 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
3475 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
3477 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
3478 struct mach_o_dyld_info_command_external raw;
3480 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3481 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3484 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
3485 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
3486 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
3487 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
3488 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
3489 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
3490 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
3491 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
3492 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
3493 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
3498 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
3500 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
3501 struct mach_o_version_min_command_external raw;
3504 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3505 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3508 ver = bfd_get_32 (abfd, raw.version);
3509 cmd->rel = ver >> 16;
3510 cmd->maj = ver >> 8;
3512 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
3517 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
3519 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
3520 struct mach_o_encryption_info_command_external raw;
3522 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3523 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3526 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
3527 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
3528 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
3533 bfd_mach_o_read_segment (bfd *abfd,
3534 bfd_mach_o_load_command *command,
3537 bfd_mach_o_segment_command *seg = &command->command.segment;
3542 struct mach_o_segment_command_64_external raw;
3544 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
3546 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3547 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3550 memcpy (seg->segname, raw.segname, 16);
3551 seg->segname[16] = '\0';
3553 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
3554 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
3555 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
3556 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
3557 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
3558 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
3559 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
3560 seg->flags = bfd_h_get_32 (abfd, raw.flags);
3564 struct mach_o_segment_command_32_external raw;
3566 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
3568 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3569 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3572 memcpy (seg->segname, raw.segname, 16);
3573 seg->segname[16] = '\0';
3575 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
3576 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
3577 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
3578 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
3579 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
3580 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
3581 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
3582 seg->flags = bfd_h_get_32 (abfd, raw.flags);
3584 seg->sect_head = NULL;
3585 seg->sect_tail = NULL;
3587 for (i = 0; i < seg->nsects; i++)
3593 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
3594 + (i * BFD_MACH_O_SECTION_64_SIZE);
3596 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
3597 + (i * BFD_MACH_O_SECTION_SIZE);
3599 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
3603 bfd_mach_o_append_section_to_segment (seg, sec);
3610 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
3612 return bfd_mach_o_read_segment (abfd, command, 0);
3616 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
3618 return bfd_mach_o_read_segment (abfd, command, 1);
3622 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
3624 struct mach_o_load_command_external raw;
3627 /* Read command type and length. */
3628 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
3629 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
3632 cmd = bfd_h_get_32 (abfd, raw.cmd);
3633 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
3634 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
3635 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
3637 switch (command->type)
3639 case BFD_MACH_O_LC_SEGMENT:
3640 if (bfd_mach_o_read_segment_32 (abfd, command) != 0)
3643 case BFD_MACH_O_LC_SEGMENT_64:
3644 if (bfd_mach_o_read_segment_64 (abfd, command) != 0)
3647 case BFD_MACH_O_LC_SYMTAB:
3648 if (bfd_mach_o_read_symtab (abfd, command) != 0)
3651 case BFD_MACH_O_LC_SYMSEG:
3653 case BFD_MACH_O_LC_THREAD:
3654 case BFD_MACH_O_LC_UNIXTHREAD:
3655 if (bfd_mach_o_read_thread (abfd, command) != 0)
3658 case BFD_MACH_O_LC_LOAD_DYLINKER:
3659 case BFD_MACH_O_LC_ID_DYLINKER:
3660 if (bfd_mach_o_read_dylinker (abfd, command) != 0)
3663 case BFD_MACH_O_LC_LOAD_DYLIB:
3664 case BFD_MACH_O_LC_ID_DYLIB:
3665 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3666 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3667 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3668 if (bfd_mach_o_read_dylib (abfd, command) != 0)
3671 case BFD_MACH_O_LC_PREBOUND_DYLIB:
3672 if (bfd_mach_o_read_prebound_dylib (abfd, command) != 0)
3675 case BFD_MACH_O_LC_LOADFVMLIB:
3676 case BFD_MACH_O_LC_IDFVMLIB:
3677 if (bfd_mach_o_read_fvmlib (abfd, command) != 0)
3680 case BFD_MACH_O_LC_IDENT:
3681 case BFD_MACH_O_LC_FVMFILE:
3682 case BFD_MACH_O_LC_PREPAGE:
3683 case BFD_MACH_O_LC_ROUTINES:
3684 case BFD_MACH_O_LC_ROUTINES_64:
3686 case BFD_MACH_O_LC_SUB_FRAMEWORK:
3687 case BFD_MACH_O_LC_SUB_UMBRELLA:
3688 case BFD_MACH_O_LC_SUB_LIBRARY:
3689 case BFD_MACH_O_LC_SUB_CLIENT:
3690 case BFD_MACH_O_LC_RPATH:
3691 if (bfd_mach_o_read_str (abfd, command) != 0)
3694 case BFD_MACH_O_LC_DYSYMTAB:
3695 if (bfd_mach_o_read_dysymtab (abfd, command) != 0)
3698 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
3699 case BFD_MACH_O_LC_PREBIND_CKSUM:
3701 case BFD_MACH_O_LC_UUID:
3702 if (bfd_mach_o_read_uuid (abfd, command) != 0)
3705 case BFD_MACH_O_LC_CODE_SIGNATURE:
3706 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
3707 case BFD_MACH_O_LC_FUNCTION_STARTS:
3708 if (bfd_mach_o_read_linkedit (abfd, command) != 0)
3711 case BFD_MACH_O_LC_ENCRYPTION_INFO:
3712 if (!bfd_mach_o_read_encryption_info (abfd, command))
3715 case BFD_MACH_O_LC_DYLD_INFO:
3716 if (bfd_mach_o_read_dyld_info (abfd, command) != 0)
3719 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
3720 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
3721 if (!bfd_mach_o_read_version_min (abfd, command))
3725 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
3726 abfd, (unsigned long) command->type);
3734 bfd_mach_o_flatten_sections (bfd *abfd)
3736 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3740 /* Count total number of sections. */
3743 for (i = 0; i < mdata->header.ncmds; i++)
3745 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
3746 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
3748 bfd_mach_o_segment_command *seg;
3750 seg = &mdata->commands[i].command.segment;
3751 mdata->nsects += seg->nsects;
3755 /* Allocate sections array. */
3756 mdata->sections = bfd_alloc (abfd,
3757 mdata->nsects * sizeof (bfd_mach_o_section *));
3759 /* Fill the array. */
3762 for (i = 0; i < mdata->header.ncmds; i++)
3764 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
3765 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
3767 bfd_mach_o_segment_command *seg;
3768 bfd_mach_o_section *sec;
3770 seg = &mdata->commands[i].command.segment;
3771 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
3773 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
3774 mdata->sections[csect++] = sec;
3780 bfd_mach_o_scan_start_address (bfd *abfd)
3782 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3783 bfd_mach_o_thread_command *cmd = NULL;
3786 for (i = 0; i < mdata->header.ncmds; i++)
3787 if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) ||
3788 (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD))
3790 cmd = &mdata->commands[i].command.thread;
3797 /* FIXME: create a subtarget hook ? */
3798 for (i = 0; i < cmd->nflavours; i++)
3800 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
3801 && (cmd->flavours[i].flavour
3802 == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32))
3804 unsigned char buf[4];
3806 if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0
3807 || bfd_bread (buf, 4, abfd) != 4)
3810 abfd->start_address = bfd_h_get_32 (abfd, buf);
3812 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
3813 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
3815 unsigned char buf[4];
3817 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
3818 || bfd_bread (buf, 4, abfd) != 4)
3821 abfd->start_address = bfd_h_get_32 (abfd, buf);
3823 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
3824 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
3826 unsigned char buf[8];
3828 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
3829 || bfd_bread (buf, 8, abfd) != 8)
3832 abfd->start_address = bfd_h_get_64 (abfd, buf);
3834 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
3835 && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
3837 unsigned char buf[8];
3839 if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0
3840 || bfd_bread (buf, 8, abfd) != 8)
3843 abfd->start_address = bfd_h_get_64 (abfd, buf);
3851 bfd_mach_o_set_arch_mach (bfd *abfd,
3852 enum bfd_architecture arch,
3853 unsigned long machine)
3855 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
3857 /* If this isn't the right architecture for this backend, and this
3858 isn't the generic backend, fail. */
3859 if (arch != bed->arch
3860 && arch != bfd_arch_unknown
3861 && bed->arch != bfd_arch_unknown)
3864 return bfd_default_set_arch_mach (abfd, arch, machine);
3868 bfd_mach_o_scan (bfd *abfd,
3869 bfd_mach_o_header *header,
3870 bfd_mach_o_data_struct *mdata)
3873 enum bfd_architecture cputype;
3874 unsigned long cpusubtype;
3875 unsigned int hdrsize;
3877 hdrsize = mach_o_wide_p (header) ?
3878 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3880 mdata->header = *header;
3882 abfd->flags = abfd->flags & BFD_IN_MEMORY;
3883 switch (header->filetype)
3885 case BFD_MACH_O_MH_OBJECT:
3886 abfd->flags |= HAS_RELOC;
3888 case BFD_MACH_O_MH_EXECUTE:
3889 abfd->flags |= EXEC_P;
3891 case BFD_MACH_O_MH_DYLIB:
3892 case BFD_MACH_O_MH_BUNDLE:
3893 abfd->flags |= DYNAMIC;
3897 abfd->tdata.mach_o_data = mdata;
3899 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
3900 &cputype, &cpusubtype);
3901 if (cputype == bfd_arch_unknown)
3903 (*_bfd_error_handler)
3904 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
3905 header->cputype, header->cpusubtype);
3909 bfd_set_arch_mach (abfd, cputype, cpusubtype);
3911 if (header->ncmds != 0)
3913 mdata->commands = bfd_alloc
3914 (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
3915 if (mdata->commands == NULL)
3918 for (i = 0; i < header->ncmds; i++)
3920 bfd_mach_o_load_command *cur = &mdata->commands[i];
3923 cur->offset = hdrsize;
3926 bfd_mach_o_load_command *prev = &mdata->commands[i - 1];
3927 cur->offset = prev->offset + prev->len;
3930 if (bfd_mach_o_read_command (abfd, cur) < 0)
3935 if (bfd_mach_o_scan_start_address (abfd) < 0)
3938 bfd_mach_o_flatten_sections (abfd);
3943 bfd_mach_o_mkobject_init (bfd *abfd)
3945 bfd_mach_o_data_struct *mdata = NULL;
3947 mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct));
3950 abfd->tdata.mach_o_data = mdata;
3952 mdata->header.magic = 0;
3953 mdata->header.cputype = 0;
3954 mdata->header.cpusubtype = 0;
3955 mdata->header.filetype = 0;
3956 mdata->header.ncmds = 0;
3957 mdata->header.sizeofcmds = 0;
3958 mdata->header.flags = 0;
3959 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
3960 mdata->commands = NULL;
3962 mdata->sections = NULL;
3963 mdata->dyn_reloc_cache = NULL;
3969 bfd_mach_o_gen_mkobject (bfd *abfd)
3971 bfd_mach_o_data_struct *mdata;
3973 if (!bfd_mach_o_mkobject_init (abfd))
3976 mdata = bfd_mach_o_get_data (abfd);
3977 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
3978 mdata->header.cputype = 0;
3979 mdata->header.cpusubtype = 0;
3980 mdata->header.byteorder = abfd->xvec->byteorder;
3981 mdata->header.version = 1;
3987 bfd_mach_o_header_p (bfd *abfd,
3988 bfd_mach_o_filetype filetype,
3989 bfd_mach_o_cpu_type cputype)
3991 struct bfd_preserve preserve;
3992 bfd_mach_o_header header;
3994 preserve.marker = NULL;
3995 if (!bfd_mach_o_read_header (abfd, &header))
3998 if (! (header.byteorder == BFD_ENDIAN_BIG
3999 || header.byteorder == BFD_ENDIAN_LITTLE))
4001 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
4002 (unsigned long) header.byteorder);
4006 if (! ((header.byteorder == BFD_ENDIAN_BIG
4007 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
4008 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
4009 || (header.byteorder == BFD_ENDIAN_LITTLE
4010 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
4011 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
4014 /* Check cputype and filetype.
4015 In case of wildcard, do not accept magics that are handled by existing
4019 if (header.cputype != cputype)
4025 if (header.filetype != filetype)
4030 switch (header.filetype)
4032 case BFD_MACH_O_MH_CORE:
4033 /* Handled by core_p */
4040 preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
4041 if (preserve.marker == NULL
4042 || !bfd_preserve_save (abfd, &preserve))
4045 if (!bfd_mach_o_scan (abfd, &header,
4046 (bfd_mach_o_data_struct *) preserve.marker))
4049 bfd_preserve_finish (abfd, &preserve);
4053 bfd_set_error (bfd_error_wrong_format);
4056 if (preserve.marker != NULL)
4057 bfd_preserve_restore (abfd, &preserve);
4061 static const bfd_target *
4062 bfd_mach_o_gen_object_p (bfd *abfd)
4064 return bfd_mach_o_header_p (abfd, 0, 0);
4067 static const bfd_target *
4068 bfd_mach_o_gen_core_p (bfd *abfd)
4070 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
4073 typedef struct mach_o_fat_archentry
4075 unsigned long cputype;
4076 unsigned long cpusubtype;
4077 unsigned long offset;
4079 unsigned long align;
4080 } mach_o_fat_archentry;
4082 typedef struct mach_o_fat_data_struct
4084 unsigned long magic;
4085 unsigned long nfat_arch;
4086 mach_o_fat_archentry *archentries;
4087 } mach_o_fat_data_struct;
4090 bfd_mach_o_archive_p (bfd *abfd)
4092 mach_o_fat_data_struct *adata = NULL;
4093 struct mach_o_fat_header_external hdr;
4096 if (bfd_seek (abfd, 0, SEEK_SET) != 0
4097 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
4100 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
4104 adata->magic = bfd_getb32 (hdr.magic);
4105 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
4106 if (adata->magic != 0xcafebabe)
4108 /* Avoid matching Java bytecode files, which have the same magic number.
4109 In the Java bytecode file format this field contains the JVM version,
4110 which starts at 43.0. */
4111 if (adata->nfat_arch > 30)
4114 adata->archentries =
4115 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
4116 if (adata->archentries == NULL)
4119 for (i = 0; i < adata->nfat_arch; i++)
4121 struct mach_o_fat_arch_external arch;
4122 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
4124 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
4125 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
4126 adata->archentries[i].offset = bfd_getb32 (arch.offset);
4127 adata->archentries[i].size = bfd_getb32 (arch.size);
4128 adata->archentries[i].align = bfd_getb32 (arch.align);
4131 abfd->tdata.mach_o_fat_data = adata;
4136 bfd_release (abfd, adata);
4137 bfd_set_error (bfd_error_wrong_format);
4141 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
4142 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
4143 Set arelt_data and origin fields too. */
4146 bfd_mach_o_fat_member_init (bfd *abfd,
4147 enum bfd_architecture arch_type,
4148 unsigned long arch_subtype,
4149 mach_o_fat_archentry *entry)
4151 struct areltdata *areltdata;
4152 /* Create the member filename. Use ARCH_NAME. */
4153 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
4157 /* Use the architecture name if known. */
4158 abfd->filename = ap->printable_name;
4162 /* Forge a uniq id. */
4163 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
4164 char *name = bfd_alloc (abfd, namelen);
4165 snprintf (name, namelen, "0x%lx-0x%lx",
4166 entry->cputype, entry->cpusubtype);
4167 abfd->filename = name;
4170 areltdata = bfd_zalloc (abfd, sizeof (struct areltdata));
4171 areltdata->parsed_size = entry->size;
4172 abfd->arelt_data = areltdata;
4173 abfd->iostream = NULL;
4174 abfd->origin = entry->offset;
4178 bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
4180 mach_o_fat_data_struct *adata;
4181 mach_o_fat_archentry *entry = NULL;
4184 enum bfd_architecture arch_type;
4185 unsigned long arch_subtype;
4187 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
4188 BFD_ASSERT (adata != NULL);
4190 /* Find index of previous entry. */
4193 /* Start at first one. */
4198 /* Find index of PREV. */
4199 for (i = 0; i < adata->nfat_arch; i++)
4201 if (adata->archentries[i].offset == prev->origin)
4205 if (i == adata->nfat_arch)
4208 bfd_set_error (bfd_error_bad_value);
4212 /* Get next entry. */
4216 if (i >= adata->nfat_arch)
4218 bfd_set_error (bfd_error_no_more_archived_files);
4222 entry = &adata->archentries[i];
4223 nbfd = _bfd_new_bfd_contained_in (archive);
4227 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
4228 &arch_type, &arch_subtype);
4230 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
4232 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
4237 /* Analogous to stat call. */
4240 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
4242 if (abfd->arelt_data == NULL)
4244 bfd_set_error (bfd_error_invalid_operation);
4251 buf->st_mode = 0644;
4252 buf->st_size = arelt_size (abfd);
4257 /* If ABFD format is FORMAT and architecture is ARCH, return it.
4258 If ABFD is a fat image containing a member that corresponds to FORMAT
4259 and ARCH, returns it.
4260 In other case, returns NULL.
4261 This function allows transparent uses of fat images. */
4264 bfd_mach_o_fat_extract (bfd *abfd,
4266 const bfd_arch_info_type *arch)
4269 mach_o_fat_data_struct *adata;
4272 if (bfd_check_format (abfd, format))
4274 if (bfd_get_arch_info (abfd) == arch)
4278 if (!bfd_check_format (abfd, bfd_archive)
4279 || abfd->xvec != &mach_o_fat_vec)
4282 /* This is a Mach-O fat image. */
4283 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
4284 BFD_ASSERT (adata != NULL);
4286 for (i = 0; i < adata->nfat_arch; i++)
4288 struct mach_o_fat_archentry *e = &adata->archentries[i];
4289 enum bfd_architecture cpu_type;
4290 unsigned long cpu_subtype;
4292 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
4293 &cpu_type, &cpu_subtype);
4294 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
4297 /* The architecture is found. */
4298 res = _bfd_new_bfd_contained_in (abfd);
4302 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
4304 if (bfd_check_format (res, format))
4306 BFD_ASSERT (bfd_get_arch_info (res) == arch);
4317 bfd_mach_o_lookup_command (bfd *abfd,
4318 bfd_mach_o_load_command_type type,
4319 bfd_mach_o_load_command **mcommand)
4321 struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd);
4322 bfd_mach_o_load_command *ncmd = NULL;
4323 unsigned int i, num;
4325 BFD_ASSERT (md != NULL);
4326 BFD_ASSERT (mcommand != NULL);
4329 for (i = 0; i < md->header.ncmds; i++)
4331 struct bfd_mach_o_load_command *cmd = &md->commands[i];
4333 if (cmd->type != type)
4346 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
4350 case BFD_MACH_O_CPU_TYPE_MC680x0:
4352 case BFD_MACH_O_CPU_TYPE_MC88000:
4354 case BFD_MACH_O_CPU_TYPE_POWERPC:
4356 case BFD_MACH_O_CPU_TYPE_I386:
4358 case BFD_MACH_O_CPU_TYPE_SPARC:
4360 case BFD_MACH_O_CPU_TYPE_I860:
4362 case BFD_MACH_O_CPU_TYPE_HPPA:
4363 return 0xc0000000 - 0x04000000;
4369 /* The following two tables should be kept, as far as possible, in order of
4370 most frequently used entries to optimize their use from gas. */
4372 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
4374 { "regular", BFD_MACH_O_S_REGULAR},
4375 { "coalesced", BFD_MACH_O_S_COALESCED},
4376 { "zerofill", BFD_MACH_O_S_ZEROFILL},
4377 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
4378 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
4379 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
4380 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
4381 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
4382 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
4383 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
4384 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
4385 { "interposing", BFD_MACH_O_S_INTERPOSING},
4386 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
4387 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
4388 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
4389 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
4390 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
4394 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
4396 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
4397 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
4398 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
4399 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
4400 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
4401 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
4402 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
4403 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
4404 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
4405 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
4406 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
4410 /* Get the section type from NAME. Return 256 if NAME is unknown. */
4413 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
4415 const bfd_mach_o_xlat_name *x;
4416 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4418 for (x = bfd_mach_o_section_type_name; x->name; x++)
4419 if (strcmp (x->name, name) == 0)
4421 /* We found it... does the target support it? */
4422 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
4423 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
4424 return x->val; /* OK. */
4426 break; /* Not supported. */
4428 /* Maximum section ID = 0xff. */
4432 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
4435 bfd_mach_o_get_section_attribute_from_name (const char *name)
4437 const bfd_mach_o_xlat_name *x;
4439 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
4440 if (strcmp (x->name, name) == 0)
4442 return (unsigned int)-1;
4446 bfd_mach_o_core_fetch_environment (bfd *abfd,
4447 unsigned char **rbuf,
4450 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4451 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
4454 for (i = 0; i < mdata->header.ncmds; i++)
4456 bfd_mach_o_load_command *cur = &mdata->commands[i];
4457 bfd_mach_o_segment_command *seg = NULL;
4459 if (cur->type != BFD_MACH_O_LC_SEGMENT)
4462 seg = &cur->command.segment;
4464 if ((seg->vmaddr + seg->vmsize) == stackaddr)
4466 unsigned long start = seg->fileoff;
4467 unsigned long end = seg->fileoff + seg->filesize;
4468 unsigned char *buf = bfd_malloc (1024);
4469 unsigned long size = 1024;
4473 bfd_size_type nread = 0;
4474 unsigned long offset;
4475 int found_nonnull = 0;
4477 if (size > (end - start))
4478 size = (end - start);
4480 buf = bfd_realloc_or_free (buf, size);
4484 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
4490 nread = bfd_bread (buf, size, abfd);
4498 for (offset = 4; offset <= size; offset += 4)
4502 val = *((unsigned long *) (buf + size - offset));
4503 if (! found_nonnull)
4508 else if (val == 0x0)
4510 unsigned long bottom;
4513 bottom = seg->fileoff + seg->filesize - offset;
4514 top = seg->fileoff + seg->filesize - 4;
4515 *rbuf = bfd_malloc (top - bottom);
4516 *rlen = top - bottom;
4518 memcpy (*rbuf, buf + size - *rlen, *rlen);
4524 if (size == (end - start))
4538 bfd_mach_o_core_file_failing_command (bfd *abfd)
4540 unsigned char *buf = NULL;
4541 unsigned int len = 0;
4544 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
4548 return (char *) buf;
4552 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
4557 static bfd_mach_o_uuid_command *
4558 bfd_mach_o_lookup_uuid_command (bfd *abfd)
4560 bfd_mach_o_load_command *uuid_cmd;
4561 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
4564 return &uuid_cmd->command.uuid;
4567 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
4570 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
4572 bfd_mach_o_uuid_command *dsym_uuid_cmd;
4575 BFD_ASSERT (uuid_cmd);
4577 if (!bfd_check_format (abfd, bfd_object))
4580 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
4581 || bfd_mach_o_get_data (abfd) == NULL
4582 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
4585 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
4586 if (dsym_uuid_cmd == NULL)
4589 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
4590 sizeof (uuid_cmd->uuid)) != 0)
4596 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
4597 The caller is responsible for closing the returned BFD object and
4598 its my_archive if the returned BFD is in a fat dSYM. */
4601 bfd_mach_o_find_dsym (const char *dsym_filename,
4602 const bfd_mach_o_uuid_command *uuid_cmd,
4603 const bfd_arch_info_type *arch)
4605 bfd *base_dsym_bfd, *dsym_bfd;
4607 BFD_ASSERT (uuid_cmd);
4609 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
4610 if (base_dsym_bfd == NULL)
4613 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
4614 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
4617 bfd_close (dsym_bfd);
4618 if (base_dsym_bfd != dsym_bfd)
4619 bfd_close (base_dsym_bfd);
4624 /* Return a BFD created from a dSYM file for ABFD.
4625 The caller is responsible for closing the returned BFD object, its
4626 filename, and its my_archive if the returned BFD is in a fat dSYM. */
4629 bfd_mach_o_follow_dsym (bfd *abfd)
4631 char *dsym_filename;
4632 bfd_mach_o_uuid_command *uuid_cmd;
4633 bfd *dsym_bfd, *base_bfd = abfd;
4634 const char *base_basename;
4636 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
4639 if (abfd->my_archive)
4640 base_bfd = abfd->my_archive;
4641 /* BFD may have been opened from a stream. */
4642 if (base_bfd->filename == NULL)
4644 bfd_set_error (bfd_error_invalid_operation);
4647 base_basename = lbasename (base_bfd->filename);
4649 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
4650 if (uuid_cmd == NULL)
4653 /* TODO: We assume the DWARF file has the same as the binary's.
4654 It seems apple's GDB checks all files in the dSYM bundle directory.
4655 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
4657 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
4658 + strlen (dsym_subdir) + 1
4659 + strlen (base_basename) + 1);
4660 sprintf (dsym_filename, "%s%s/%s",
4661 base_bfd->filename, dsym_subdir, base_basename);
4663 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
4664 bfd_get_arch_info (abfd));
4665 if (dsym_bfd == NULL)
4666 free (dsym_filename);
4672 bfd_mach_o_find_nearest_line (bfd *abfd,
4676 const char **filename_ptr,
4677 const char **functionname_ptr,
4678 unsigned int *line_ptr)
4680 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4683 switch (mdata->header.filetype)
4685 case BFD_MACH_O_MH_OBJECT:
4687 case BFD_MACH_O_MH_EXECUTE:
4688 case BFD_MACH_O_MH_DYLIB:
4689 case BFD_MACH_O_MH_BUNDLE:
4690 case BFD_MACH_O_MH_KEXT_BUNDLE:
4691 if (mdata->dwarf2_find_line_info == NULL)
4693 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
4694 /* When we couldn't find dSYM for this binary, we look for
4695 the debug information in the binary itself. In this way,
4696 we won't try finding separated dSYM again because
4697 mdata->dwarf2_find_line_info will be filled. */
4698 if (! mdata->dsym_bfd)
4700 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
4701 dwarf_debug_sections, symbols,
4702 &mdata->dwarf2_find_line_info))
4709 if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections,
4710 section, symbols, offset,
4711 filename_ptr, functionname_ptr,
4713 &mdata->dwarf2_find_line_info))
4719 bfd_mach_o_close_and_cleanup (bfd *abfd)
4721 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4722 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
4724 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
4725 bfd_mach_o_free_cached_info (abfd);
4726 if (mdata->dsym_bfd != NULL)
4728 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
4729 char *dsym_filename = (char *)(fat_bfd
4731 : mdata->dsym_bfd->filename);
4732 bfd_close (mdata->dsym_bfd);
4733 mdata->dsym_bfd = NULL;
4735 bfd_close (fat_bfd);
4736 free (dsym_filename);
4740 return _bfd_generic_close_and_cleanup (abfd);
4743 bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
4745 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4747 free (mdata->dyn_reloc_cache);
4748 mdata->dyn_reloc_cache = NULL;
4749 for (asect = abfd->sections; asect != NULL; asect = asect->next)
4751 free (asect->relocation);
4752 asect->relocation = NULL;
4758 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
4759 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
4761 #define bfd_mach_o_swap_reloc_in NULL
4762 #define bfd_mach_o_swap_reloc_out NULL
4763 #define bfd_mach_o_print_thread NULL
4764 #define bfd_mach_o_tgt_seg_table NULL
4765 #define bfd_mach_o_section_type_valid_for_tgt NULL
4767 #define TARGET_NAME mach_o_be_vec
4768 #define TARGET_STRING "mach-o-be"
4769 #define TARGET_ARCHITECTURE bfd_arch_unknown
4770 #define TARGET_BIG_ENDIAN 1
4771 #define TARGET_ARCHIVE 0
4772 #define TARGET_PRIORITY 1
4773 #include "mach-o-target.c"
4776 #undef TARGET_STRING
4777 #undef TARGET_ARCHITECTURE
4778 #undef TARGET_BIG_ENDIAN
4779 #undef TARGET_ARCHIVE
4780 #undef TARGET_PRIORITY
4782 #define TARGET_NAME mach_o_le_vec
4783 #define TARGET_STRING "mach-o-le"
4784 #define TARGET_ARCHITECTURE bfd_arch_unknown
4785 #define TARGET_BIG_ENDIAN 0
4786 #define TARGET_ARCHIVE 0
4787 #define TARGET_PRIORITY 1
4789 #include "mach-o-target.c"
4792 #undef TARGET_STRING
4793 #undef TARGET_ARCHITECTURE
4794 #undef TARGET_BIG_ENDIAN
4795 #undef TARGET_ARCHIVE
4796 #undef TARGET_PRIORITY
4798 /* Not yet handled: creating an archive. */
4799 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
4802 #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
4803 #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
4804 #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
4805 #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
4806 #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
4807 #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
4808 #define bfd_mach_o_write_armap _bfd_noarchive_write_armap
4809 #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
4810 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
4811 #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
4813 #define TARGET_NAME mach_o_fat_vec
4814 #define TARGET_STRING "mach-o-fat"
4815 #define TARGET_ARCHITECTURE bfd_arch_unknown
4816 #define TARGET_BIG_ENDIAN 1
4817 #define TARGET_ARCHIVE 1
4818 #define TARGET_PRIORITY 0
4820 #include "mach-o-target.c"
4823 #undef TARGET_STRING
4824 #undef TARGET_ARCHITECTURE
4825 #undef TARGET_BIG_ENDIAN
4826 #undef TARGET_ARCHIVE
4827 #undef TARGET_PRIORITY