1 /* Mach-O support for BFD.
2 Copyright (C) 1999-2014 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
25 #include "libiberty.h"
26 #include "aout/stab_gnu.h"
27 #include "mach-o/reloc.h"
28 #include "mach-o/external.h"
33 #define bfd_mach_o_object_p bfd_mach_o_gen_object_p
34 #define bfd_mach_o_core_p bfd_mach_o_gen_core_p
35 #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject
37 #define FILE_ALIGN(off, algn) \
38 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1 << (algn)))
41 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd);
44 bfd_mach_o_version (bfd *abfd)
46 bfd_mach_o_data_struct *mdata = NULL;
48 BFD_ASSERT (bfd_mach_o_valid (abfd));
49 mdata = bfd_mach_o_get_data (abfd);
51 return mdata->header.version;
55 bfd_mach_o_valid (bfd *abfd)
57 if (abfd == NULL || abfd->xvec == NULL)
60 if (abfd->xvec->flavour != bfd_target_mach_o_flavour)
63 if (bfd_mach_o_get_data (abfd) == NULL)
68 static INLINE bfd_boolean
69 mach_o_wide_p (bfd_mach_o_header *header)
71 switch (header->version)
83 static INLINE bfd_boolean
84 bfd_mach_o_wide_p (bfd *abfd)
86 return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header);
89 /* Tables to translate well known Mach-O segment/section names to bfd
90 names. Use of canonical names (such as .text or .debug_frame) is required
94 static const mach_o_section_name_xlat text_section_names_xlat[] =
97 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
98 BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0},
99 { ".const", "__const",
100 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
101 BFD_MACH_O_S_ATTR_NONE, 0},
102 { ".static_const", "__static_const",
103 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
104 BFD_MACH_O_S_ATTR_NONE, 0},
105 { ".cstring", "__cstring",
106 SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS,
107 BFD_MACH_O_S_CSTRING_LITERALS,
108 BFD_MACH_O_S_ATTR_NONE, 0},
109 { ".literal4", "__literal4",
110 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS,
111 BFD_MACH_O_S_ATTR_NONE, 2},
112 { ".literal8", "__literal8",
113 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS,
114 BFD_MACH_O_S_ATTR_NONE, 3},
115 { ".literal16", "__literal16",
116 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS,
117 BFD_MACH_O_S_ATTR_NONE, 4},
118 { ".constructor", "__constructor",
119 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
120 BFD_MACH_O_S_ATTR_NONE, 0},
121 { ".destructor", "__destructor",
122 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
123 BFD_MACH_O_S_ATTR_NONE, 0},
124 { ".eh_frame", "__eh_frame",
125 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED,
126 BFD_MACH_O_S_ATTR_LIVE_SUPPORT
127 | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
128 | BFD_MACH_O_S_ATTR_NO_TOC, 2},
129 { NULL, NULL, 0, 0, 0, 0}
132 /* __DATA Segment. */
133 static const mach_o_section_name_xlat data_section_names_xlat[] =
136 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
137 BFD_MACH_O_S_ATTR_NONE, 0},
139 SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL,
140 BFD_MACH_O_S_ATTR_NONE, 0},
141 { ".const_data", "__const",
142 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
143 BFD_MACH_O_S_ATTR_NONE, 0},
144 { ".static_data", "__static_data",
145 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
146 BFD_MACH_O_S_ATTR_NONE, 0},
147 { ".mod_init_func", "__mod_init_func",
148 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS,
149 BFD_MACH_O_S_ATTR_NONE, 2},
150 { ".mod_term_func", "__mod_term_func",
151 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS,
152 BFD_MACH_O_S_ATTR_NONE, 2},
154 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
155 BFD_MACH_O_S_ATTR_NONE, 0},
156 { ".cfstring", "__cfstring",
157 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
158 BFD_MACH_O_S_ATTR_NONE, 2},
159 { NULL, NULL, 0, 0, 0, 0}
162 /* __DWARF Segment. */
163 static const mach_o_section_name_xlat dwarf_section_names_xlat[] =
165 { ".debug_frame", "__debug_frame",
166 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
167 BFD_MACH_O_S_ATTR_DEBUG, 0},
168 { ".debug_info", "__debug_info",
169 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
170 BFD_MACH_O_S_ATTR_DEBUG, 0},
171 { ".debug_abbrev", "__debug_abbrev",
172 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
173 BFD_MACH_O_S_ATTR_DEBUG, 0},
174 { ".debug_aranges", "__debug_aranges",
175 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
176 BFD_MACH_O_S_ATTR_DEBUG, 0},
177 { ".debug_macinfo", "__debug_macinfo",
178 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
179 BFD_MACH_O_S_ATTR_DEBUG, 0},
180 { ".debug_line", "__debug_line",
181 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
182 BFD_MACH_O_S_ATTR_DEBUG, 0},
183 { ".debug_loc", "__debug_loc",
184 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
185 BFD_MACH_O_S_ATTR_DEBUG, 0},
186 { ".debug_pubnames", "__debug_pubnames",
187 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
188 BFD_MACH_O_S_ATTR_DEBUG, 0},
189 { ".debug_pubtypes", "__debug_pubtypes",
190 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
191 BFD_MACH_O_S_ATTR_DEBUG, 0},
192 { ".debug_str", "__debug_str",
193 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
194 BFD_MACH_O_S_ATTR_DEBUG, 0},
195 { ".debug_ranges", "__debug_ranges",
196 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
197 BFD_MACH_O_S_ATTR_DEBUG, 0},
198 { ".debug_macro", "__debug_macro",
199 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
200 BFD_MACH_O_S_ATTR_DEBUG, 0},
201 { ".debug_gdb_scripts", "__debug_gdb_scri",
202 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
203 BFD_MACH_O_S_ATTR_DEBUG, 0},
204 { NULL, NULL, 0, 0, 0, 0}
207 /* __OBJC Segment. */
208 static const mach_o_section_name_xlat objc_section_names_xlat[] =
210 { ".objc_class", "__class",
211 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
212 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
213 { ".objc_meta_class", "__meta_class",
214 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
215 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
216 { ".objc_cat_cls_meth", "__cat_cls_meth",
217 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
218 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
219 { ".objc_cat_inst_meth", "__cat_inst_meth",
220 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
221 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
222 { ".objc_protocol", "__protocol",
223 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
224 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
225 { ".objc_string_object", "__string_object",
226 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
227 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
228 { ".objc_cls_meth", "__cls_meth",
229 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
230 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
231 { ".objc_inst_meth", "__inst_meth",
232 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
233 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
234 { ".objc_cls_refs", "__cls_refs",
235 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
236 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
237 { ".objc_message_refs", "__message_refs",
238 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
239 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
240 { ".objc_symbols", "__symbols",
241 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
242 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
243 { ".objc_category", "__category",
244 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
245 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
246 { ".objc_class_vars", "__class_vars",
247 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
248 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
249 { ".objc_instance_vars", "__instance_vars",
250 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
251 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
252 { ".objc_module_info", "__module_info",
253 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
254 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
255 { ".objc_selector_strs", "__selector_strs",
256 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS,
257 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
258 { ".objc_image_info", "__image_info",
259 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
260 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
261 { ".objc_selector_fixup", "__sel_fixup",
262 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
263 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
265 { ".objc1_class_ext", "__class_ext",
266 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
267 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
268 { ".objc1_property_list", "__property",
269 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
270 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
271 { ".objc1_protocol_ext", "__protocol_ext",
272 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
273 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
274 { NULL, NULL, 0, 0, 0, 0}
277 static const mach_o_segment_name_xlat segsec_names_xlat[] =
279 { "__TEXT", text_section_names_xlat },
280 { "__DATA", data_section_names_xlat },
281 { "__DWARF", dwarf_section_names_xlat },
282 { "__OBJC", objc_section_names_xlat },
286 static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF";
288 /* For both cases bfd-name => mach-o name and vice versa, the specific target
289 is checked before the generic. This allows a target (e.g. ppc for cstring)
290 to override the generic definition with a more specific one. */
292 /* Fetch the translation from a Mach-O section designation (segment, section)
293 as a bfd short name, if one exists. Otherwise return NULL.
295 Allow the segment and section names to be unterminated 16 byte arrays. */
297 const mach_o_section_name_xlat *
298 bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname,
299 const char *sectname)
301 const struct mach_o_segment_name_xlat *seg;
302 const mach_o_section_name_xlat *sec;
303 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
305 /* First try any target-specific translations defined... */
306 if (bed->segsec_names_xlat)
307 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
308 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
309 for (sec = seg->sections; sec->mach_o_name; sec++)
310 if (strncmp (sec->mach_o_name, sectname,
311 BFD_MACH_O_SECTNAME_SIZE) == 0)
314 /* ... and then the Mach-O generic ones. */
315 for (seg = segsec_names_xlat; seg->segname; seg++)
316 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
317 for (sec = seg->sections; sec->mach_o_name; sec++)
318 if (strncmp (sec->mach_o_name, sectname,
319 BFD_MACH_O_SECTNAME_SIZE) == 0)
325 /* If the bfd_name for this section is a 'canonical' form for which we
326 know the Mach-O data, return the segment name and the data for the
327 Mach-O equivalent. Otherwise return NULL. */
329 const mach_o_section_name_xlat *
330 bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name,
331 const char **segname)
333 const struct mach_o_segment_name_xlat *seg;
334 const mach_o_section_name_xlat *sec;
335 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
338 if (bfd_name[0] != '.')
341 /* First try any target-specific translations defined... */
342 if (bed->segsec_names_xlat)
343 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
344 for (sec = seg->sections; sec->bfd_name; sec++)
345 if (strcmp (bfd_name, sec->bfd_name) == 0)
347 *segname = seg->segname;
351 /* ... and then the Mach-O generic ones. */
352 for (seg = segsec_names_xlat; seg->segname; seg++)
353 for (sec = seg->sections; sec->bfd_name; sec++)
354 if (strcmp (bfd_name, sec->bfd_name) == 0)
356 *segname = seg->segname;
363 /* Convert Mach-O section name to BFD.
365 Try to use standard/canonical names, for which we have tables including
366 default flag settings - which are returned. Otherwise forge a new name
367 in the form "<segmentname>.<sectionname>" this will be prefixed with
368 LC_SEGMENT. if the segment name does not begin with an underscore.
370 SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL-
371 terminated if the name length is exactly 16 bytes - but must be if the name
372 length is less than 16 characters). */
375 bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname,
376 const char *secname, const char **name,
379 const mach_o_section_name_xlat *xlat;
382 const char *pfx = "";
385 *flags = SEC_NO_FLAGS;
387 /* First search for a canonical name...
388 xlat will be non-null if there is an entry for segname, secname. */
389 xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname);
392 len = strlen (xlat->bfd_name);
393 res = bfd_alloc (abfd, len+1);
396 memcpy (res, xlat->bfd_name, len+1);
398 *flags = xlat->bfd_flags;
402 /* ... else we make up a bfd name from the segment concatenated with the
405 len = 16 + 1 + 16 + 1;
407 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
408 with an underscore. */
409 if (segname[0] != '_')
411 static const char seg_pfx[] = "LC_SEGMENT.";
414 len += sizeof (seg_pfx) - 1;
417 res = bfd_alloc (abfd, len);
420 snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname);
424 /* Convert a bfd section name to a Mach-O segment + section name.
426 If the name is a canonical one for which we have a Darwin match
427 return the translation table - which contains defaults for flags,
428 type, attribute and default alignment data.
430 Otherwise, expand the bfd_name (assumed to be in the form
431 "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
433 static const mach_o_section_name_xlat *
434 bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
436 bfd_mach_o_section *section)
438 const mach_o_section_name_xlat *xlat;
439 const char *name = bfd_get_section_name (abfd, sect);
446 memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1);
447 memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1);
449 /* See if is a canonical name ... */
450 xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname);
453 strcpy (section->segname, segname);
454 strcpy (section->sectname, xlat->mach_o_name);
458 /* .. else we convert our constructed one back to Mach-O.
459 Strip LC_SEGMENT. prefix, if present. */
460 if (strncmp (name, "LC_SEGMENT.", 11) == 0)
464 dot = strchr (name, '.');
467 /* Try to split name into segment and section names. */
468 if (dot && dot != name)
471 seclen = len - (dot + 1 - name);
473 if (seglen <= BFD_MACH_O_SEGNAME_SIZE
474 && seclen <= BFD_MACH_O_SECTNAME_SIZE)
476 memcpy (section->segname, name, seglen);
477 section->segname[seglen] = 0;
478 memcpy (section->sectname, dot + 1, seclen);
479 section->sectname[seclen] = 0;
484 /* The segment and section names are both missing - don't make them
486 if (dot && dot == name)
489 /* Just duplicate the name into both segment and section. */
492 memcpy (section->segname, name, len);
493 section->segname[len] = 0;
494 memcpy (section->sectname, name, len);
495 section->sectname[len] = 0;
499 /* Return the size of an entry for section SEC.
500 Must be called only for symbol pointer section and symbol stubs
504 bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec)
506 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
508 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
509 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
510 return bfd_mach_o_wide_p (abfd) ? 8 : 4;
511 case BFD_MACH_O_S_SYMBOL_STUBS:
512 return sec->reserved2;
519 /* Return the number of indirect symbols for a section.
520 Must be called only for symbol pointer section and symbol stubs
524 bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec)
528 elsz = bfd_mach_o_section_get_entry_size (abfd, sec);
532 return sec->size / elsz;
535 /* Append command CMD to ABFD. Note that header.ncmds is not updated. */
538 bfd_mach_o_append_command (bfd *abfd, bfd_mach_o_load_command *cmd)
540 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
542 if (mdata->last_command != NULL)
543 mdata->last_command->next = cmd;
545 mdata->first_command = cmd;
546 mdata->last_command = cmd;
550 /* Copy any private info we understand from the input symbol
551 to the output symbol. */
554 bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
556 bfd *obfd ATTRIBUTE_UNUSED,
559 bfd_mach_o_asymbol *os, *is;
561 os = (bfd_mach_o_asymbol *)osymbol;
562 is = (bfd_mach_o_asymbol *)isymbol;
563 os->n_type = is->n_type;
564 os->n_sect = is->n_sect;
565 os->n_desc = is->n_desc;
566 os->symbol.udata.i = is->symbol.udata.i;
571 /* Copy any private info we understand from the input section
572 to the output section. */
575 bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection,
576 bfd *obfd, asection *osection)
578 bfd_mach_o_section *os = bfd_mach_o_get_mach_o_section (osection);
579 bfd_mach_o_section *is = bfd_mach_o_get_mach_o_section (isection);
581 if (ibfd->xvec->flavour != bfd_target_mach_o_flavour
582 || obfd->xvec->flavour != bfd_target_mach_o_flavour)
585 BFD_ASSERT (is != NULL && os != NULL);
587 os->flags = is->flags;
588 os->reserved1 = is->reserved1;
589 os->reserved2 = is->reserved2;
590 os->reserved3 = is->reserved3;
595 /* Copy any private info we understand from the input bfd
596 to the output bfd. */
599 bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd)
601 bfd_mach_o_data_struct *imdata;
602 bfd_mach_o_data_struct *omdata;
603 bfd_mach_o_load_command *icmd;
605 if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
606 || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
609 BFD_ASSERT (bfd_mach_o_valid (ibfd));
610 BFD_ASSERT (bfd_mach_o_valid (obfd));
612 imdata = bfd_mach_o_get_data (ibfd);
613 omdata = bfd_mach_o_get_data (obfd);
615 /* Copy header flags. */
616 omdata->header.flags = imdata->header.flags;
619 for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next)
621 bfd_mach_o_load_command *ocmd;
625 case BFD_MACH_O_LC_LOAD_DYLIB:
626 case BFD_MACH_O_LC_LOAD_DYLINKER:
627 case BFD_MACH_O_LC_DYLD_INFO:
628 /* Command is copied. */
629 ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command));
633 /* Copy common fields. */
634 ocmd->type = icmd->type;
635 ocmd->type_required = icmd->type_required;
637 ocmd->len = icmd->len;
641 /* Command is not copied. */
648 case BFD_MACH_O_LC_LOAD_DYLIB:
650 bfd_mach_o_dylib_command *idy = &icmd->command.dylib;
651 bfd_mach_o_dylib_command *ody = &ocmd->command.dylib;
653 ody->name_offset = idy->name_offset;
654 ody->timestamp = idy->timestamp;
655 ody->current_version = idy->current_version;
656 ody->compatibility_version = idy->compatibility_version;
657 ody->name_str = idy->name_str;
661 case BFD_MACH_O_LC_LOAD_DYLINKER:
663 bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker;
664 bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker;
666 ody->name_offset = idy->name_offset;
667 ody->name_str = idy->name_str;
671 case BFD_MACH_O_LC_DYLD_INFO:
673 bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info;
674 bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info;
676 if (bfd_mach_o_read_dyld_content (ibfd, idy))
678 ody->rebase_size = idy->rebase_size;
679 ody->rebase_content = idy->rebase_content;
681 ody->bind_size = idy->bind_size;
682 ody->bind_content = idy->bind_content;
684 ody->weak_bind_size = idy->weak_bind_size;
685 ody->weak_bind_content = idy->weak_bind_content;
687 ody->lazy_bind_size = idy->lazy_bind_size;
688 ody->lazy_bind_content = idy->lazy_bind_content;
690 ody->export_size = idy->export_size;
691 ody->export_content = idy->export_content;
697 /* That command should be handled. */
701 /* Insert command. */
702 bfd_mach_o_append_command (obfd, ocmd);
708 /* This allows us to set up to 32 bits of flags (unless we invent some
709 fiendish scheme to subdivide). For now, we'll just set the file flags
710 without error checking - just overwrite. */
713 bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags)
715 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
720 mdata->header.flags = flags;
724 /* Count the total number of symbols. */
727 bfd_mach_o_count_symbols (bfd *abfd)
729 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
731 if (mdata->symtab == NULL)
733 return mdata->symtab->nsyms;
737 bfd_mach_o_get_symtab_upper_bound (bfd *abfd)
739 long nsyms = bfd_mach_o_count_symbols (abfd);
741 return ((nsyms + 1) * sizeof (asymbol *));
745 bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation)
747 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
748 long nsyms = bfd_mach_o_count_symbols (abfd);
749 bfd_mach_o_symtab_command *sym = mdata->symtab;
757 /* Do not try to read symbols if there are none. */
762 if (!bfd_mach_o_read_symtab_symbols (abfd))
764 (*_bfd_error_handler)
765 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
769 BFD_ASSERT (sym->symbols != NULL);
771 for (j = 0; j < sym->nsyms; j++)
772 alocation[j] = &sym->symbols[j].symbol;
779 /* Create synthetic symbols for indirect symbols. */
782 bfd_mach_o_get_synthetic_symtab (bfd *abfd,
783 long symcount ATTRIBUTE_UNUSED,
784 asymbol **syms ATTRIBUTE_UNUSED,
785 long dynsymcount ATTRIBUTE_UNUSED,
786 asymbol **dynsyms ATTRIBUTE_UNUSED,
789 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
790 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
791 bfd_mach_o_symtab_command *symtab = mdata->symtab;
793 unsigned long count, i, j, n;
800 /* Stop now if no symbols or no indirect symbols. */
801 if (dysymtab == NULL || symtab == NULL || symtab->symbols == NULL)
804 if (dysymtab->nindirectsyms == 0)
807 /* We need to allocate a bfd symbol for every indirect symbol and to
808 allocate the memory for its name. */
809 count = dysymtab->nindirectsyms;
810 size = count * sizeof (asymbol) + 1;
812 for (j = 0; j < count; j++)
814 unsigned int isym = dysymtab->indirect_syms[j];
816 /* Some indirect symbols are anonymous. */
817 if (isym < symtab->nsyms && symtab->symbols[isym].symbol.name)
818 size += strlen (symtab->symbols[isym].symbol.name) + sizeof ("$stub");
821 s = *ret = (asymbol *) bfd_malloc (size);
824 names = (char *) (s + count);
829 for (i = 0; i < mdata->nsects; i++)
831 bfd_mach_o_section *sec = mdata->sections[i];
832 unsigned int first, last;
836 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
838 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
839 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
840 case BFD_MACH_O_S_SYMBOL_STUBS:
841 /* Only these sections have indirect symbols. */
842 first = sec->reserved1;
843 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
845 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
846 for (j = first; j < last; j++)
848 unsigned int isym = dysymtab->indirect_syms[j];
850 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
851 s->section = sec->bfdsection;
852 s->value = addr - sec->addr;
855 if (isym < symtab->nsyms
856 && symtab->symbols[isym].symbol.name)
858 const char *sym = symtab->symbols[isym].symbol.name;
863 memcpy (names, sym, len);
865 memcpy (names, "$stub", sizeof ("$stub"));
866 names += sizeof ("$stub");
885 bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
889 bfd_symbol_info (symbol, ret);
893 bfd_mach_o_print_symbol (bfd *abfd,
896 bfd_print_symbol_type how)
898 FILE *file = (FILE *) afile;
900 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
904 case bfd_print_symbol_name:
905 fprintf (file, "%s", symbol->name);
908 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
909 if (asym->n_type & BFD_MACH_O_N_STAB)
910 name = bfd_get_stab_name (asym->n_type);
912 switch (asym->n_type & BFD_MACH_O_N_TYPE)
914 case BFD_MACH_O_N_UNDF:
915 if (symbol->value == 0)
920 case BFD_MACH_O_N_ABS:
923 case BFD_MACH_O_N_INDR:
926 case BFD_MACH_O_N_PBUD:
929 case BFD_MACH_O_N_SECT:
938 fprintf (file, " %02x %-6s %02x %04x",
939 asym->n_type, name, asym->n_sect, asym->n_desc);
940 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
941 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
942 fprintf (file, " [%s]", symbol->section->name);
943 fprintf (file, " %s", symbol->name);
948 bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
949 bfd_mach_o_cpu_subtype msubtype,
950 enum bfd_architecture *type,
951 unsigned long *subtype)
953 *subtype = bfd_arch_unknown;
957 case BFD_MACH_O_CPU_TYPE_VAX:
958 *type = bfd_arch_vax;
960 case BFD_MACH_O_CPU_TYPE_MC680x0:
961 *type = bfd_arch_m68k;
963 case BFD_MACH_O_CPU_TYPE_I386:
964 *type = bfd_arch_i386;
965 *subtype = bfd_mach_i386_i386;
967 case BFD_MACH_O_CPU_TYPE_X86_64:
968 *type = bfd_arch_i386;
969 *subtype = bfd_mach_x86_64;
971 case BFD_MACH_O_CPU_TYPE_MIPS:
972 *type = bfd_arch_mips;
974 case BFD_MACH_O_CPU_TYPE_MC98000:
975 *type = bfd_arch_m98k;
977 case BFD_MACH_O_CPU_TYPE_HPPA:
978 *type = bfd_arch_hppa;
980 case BFD_MACH_O_CPU_TYPE_ARM:
981 *type = bfd_arch_arm;
984 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
985 *subtype = bfd_mach_arm_4T;
987 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
988 *subtype = bfd_mach_arm_4T; /* Best fit ? */
990 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
991 *subtype = bfd_mach_arm_5TE;
993 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
994 *subtype = bfd_mach_arm_XScale;
996 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
997 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
999 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
1004 case BFD_MACH_O_CPU_TYPE_MC88000:
1005 *type = bfd_arch_m88k;
1007 case BFD_MACH_O_CPU_TYPE_SPARC:
1008 *type = bfd_arch_sparc;
1009 *subtype = bfd_mach_sparc;
1011 case BFD_MACH_O_CPU_TYPE_I860:
1012 *type = bfd_arch_i860;
1014 case BFD_MACH_O_CPU_TYPE_ALPHA:
1015 *type = bfd_arch_alpha;
1017 case BFD_MACH_O_CPU_TYPE_POWERPC:
1018 *type = bfd_arch_powerpc;
1019 *subtype = bfd_mach_ppc;
1021 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1022 *type = bfd_arch_powerpc;
1023 *subtype = bfd_mach_ppc64;
1025 case BFD_MACH_O_CPU_TYPE_ARM64:
1026 *type = bfd_arch_aarch64;
1027 *subtype = bfd_mach_aarch64;
1030 *type = bfd_arch_unknown;
1035 /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1036 number of bytes written or -1 in case of error. */
1039 bfd_mach_o_pad4 (bfd *abfd, unsigned int len)
1043 char pad[4] = {0,0,0,0};
1044 unsigned int padlen = 4 - (len % 4);
1046 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1055 /* Likewise, but for a command. */
1058 bfd_mach_o_pad_command (bfd *abfd, unsigned int len)
1060 unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4;
1062 if (len % align != 0)
1065 unsigned int padlen = align - (len % align);
1067 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1077 bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
1079 struct mach_o_header_external raw;
1082 size = mach_o_wide_p (header) ?
1083 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1085 bfd_h_put_32 (abfd, header->magic, raw.magic);
1086 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
1087 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
1088 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
1089 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
1090 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
1091 bfd_h_put_32 (abfd, header->flags, raw.flags);
1093 if (mach_o_wide_p (header))
1094 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1096 if (bfd_seek (abfd, 0, SEEK_SET) != 0
1097 || bfd_bwrite (&raw, size, abfd) != size)
1104 bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
1106 bfd_mach_o_thread_command *cmd = &command->command.thread;
1108 struct mach_o_thread_command_external raw;
1109 unsigned int offset;
1111 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1112 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1114 offset = BFD_MACH_O_LC_SIZE;
1115 for (i = 0; i < cmd->nflavours; i++)
1117 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
1118 BFD_ASSERT (cmd->flavours[i].offset ==
1119 (command->offset + offset + BFD_MACH_O_LC_SIZE));
1121 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
1122 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
1124 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
1125 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1128 offset += cmd->flavours[i].size + sizeof (raw);
1135 bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
1137 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1138 struct mach_o_str_command_external raw;
1139 unsigned int namelen;
1141 bfd_h_put_32 (abfd, cmd->name_offset, raw.str);
1143 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1144 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1147 namelen = strlen (cmd->name_str) + 1;
1148 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1151 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1158 bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1160 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1161 struct mach_o_dylib_command_external raw;
1162 unsigned int namelen;
1164 bfd_h_put_32 (abfd, cmd->name_offset, raw.name);
1165 bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp);
1166 bfd_h_put_32 (abfd, cmd->current_version, raw.current_version);
1167 bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version);
1169 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1170 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1173 namelen = strlen (cmd->name_str) + 1;
1174 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1177 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1184 bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
1186 bfd_mach_o_main_command *cmd = &command->command.main;
1187 struct mach_o_entry_point_command_external raw;
1189 bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff);
1190 bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize);
1192 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1193 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1200 bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
1202 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
1203 struct mach_o_dyld_info_command_external raw;
1205 bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off);
1206 bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size);
1207 bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off);
1208 bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size);
1209 bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off);
1210 bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size);
1211 bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off);
1212 bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size);
1213 bfd_h_put_32 (abfd, cmd->export_off, raw.export_off);
1214 bfd_h_put_32 (abfd, cmd->export_size, raw.export_size);
1216 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1217 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1220 if (cmd->rebase_size != 0)
1221 if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
1222 || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
1226 if (cmd->bind_size != 0)
1227 if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
1228 || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
1232 if (cmd->weak_bind_size != 0)
1233 if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
1234 || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
1235 cmd->weak_bind_size))
1238 if (cmd->lazy_bind_size != 0)
1239 if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
1240 || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
1241 cmd->lazy_bind_size))
1244 if (cmd->export_size != 0)
1245 if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
1246 || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
1254 bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
1257 return (asect->reloc_count + 1) * sizeof (arelent *);
1260 /* In addition to the need to byte-swap the symbol number, the bit positions
1261 of the fields in the relocation information vary per target endian-ness. */
1264 bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel,
1265 unsigned char *fields)
1267 unsigned char info = fields[3];
1269 if (bfd_big_endian (abfd))
1271 rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2];
1272 rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1273 rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0;
1274 rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT)
1275 & BFD_MACH_O_LENGTH_MASK;
1276 rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0;
1280 rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0];
1281 rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1282 rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0;
1283 rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT)
1284 & BFD_MACH_O_LENGTH_MASK;
1285 rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0;
1290 bfd_mach_o_canonicalize_one_reloc (bfd *abfd,
1291 struct mach_o_reloc_info_external *raw,
1292 arelent *res, asymbol **syms)
1294 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1295 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1296 bfd_mach_o_reloc_info reloc;
1300 addr = bfd_get_32 (abfd, raw->r_address);
1301 res->sym_ptr_ptr = NULL;
1304 if (addr & BFD_MACH_O_SR_SCATTERED)
1307 bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum);
1309 /* Scattered relocation, can't be extern. */
1310 reloc.r_scattered = 1;
1313 /* Extract section and offset from r_value (symnum). */
1314 reloc.r_value = symnum;
1315 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1316 end of the data for the section (e.g. in a calculation of section
1317 data length). At present, the symbol will end up associated with
1318 the following section or, if it falls within alignment padding, as
1319 null - which will assert later. */
1320 for (j = 0; j < mdata->nsects; j++)
1322 bfd_mach_o_section *sect = mdata->sections[j];
1323 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1325 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1326 res->addend = symnum - sect->addr;
1331 /* Extract the info and address fields from r_address. */
1332 reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1333 reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1334 reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL;
1335 reloc.r_address = BFD_MACH_O_GET_SR_TYPE (addr);
1336 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
1342 /* Non-scattered relocation. */
1343 reloc.r_scattered = 0;
1345 /* The value and info fields have to be extracted dependent on target
1347 bfd_mach_o_swap_in_non_scattered_reloc (abfd, &reloc, raw->r_symbolnum);
1348 num = reloc.r_value;
1352 /* An external symbol number. */
1355 else if (num == 0x00ffffff || num == 0)
1357 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1358 is generic code, we don't know wether this is really a PAIR.
1359 This value is almost certainly not a valid section number, hence
1360 this specific case to avoid an assertion failure.
1361 Target specific swap_reloc_in routine should adjust that. */
1362 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1366 /* A section number. */
1367 BFD_ASSERT (num <= mdata->nsects);
1369 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1370 /* For a symbol defined in section S, the addend (stored in the
1371 binary) contains the address of the section. To comply with
1372 bfd convention, subtract the section address.
1373 Use the address from the header, so that the user can modify
1374 the vma of the section. */
1375 res->addend = -mdata->sections[num - 1]->addr;
1377 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1378 in the lower 16bits of the address value. So we have to find the
1379 'symbol' from the preceding reloc. We do this even though the
1380 section symbol is probably not needed here, because NULL symbol
1381 values cause an assert in generic BFD code. This must be done in
1382 the PPC swap_reloc_in routine. */
1383 res->sym_ptr_ptr = sym;
1385 /* The 'address' is just r_address.
1386 ??? maybe this should be masked with 0xffffff for safety. */
1387 res->address = addr;
1388 reloc.r_address = addr;
1391 /* We have set up a reloc with all the information present, so the swapper
1392 can modify address, value and addend fields, if necessary, to convey
1393 information in the generic BFD reloc that is mach-o specific. */
1395 if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc))
1401 bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1402 unsigned long count,
1403 arelent *res, asymbol **syms)
1406 struct mach_o_reloc_info_external *native_relocs;
1407 bfd_size_type native_size;
1409 /* Allocate and read relocs. */
1410 native_size = count * BFD_MACH_O_RELENT_SIZE;
1412 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
1413 if (native_relocs == NULL)
1416 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
1417 || bfd_bread (native_relocs, native_size, abfd) != native_size)
1420 for (i = 0; i < count; i++)
1422 if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i],
1426 free (native_relocs);
1429 free (native_relocs);
1434 bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1435 arelent **rels, asymbol **syms)
1437 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1441 if (asect->reloc_count == 0)
1444 /* No need to go further if we don't know how to read relocs. */
1445 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1448 if (asect->relocation == NULL)
1450 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1454 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1455 asect->reloc_count, res, syms) < 0)
1460 asect->relocation = res;
1463 res = asect->relocation;
1464 for (i = 0; i < asect->reloc_count; i++)
1472 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1474 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1476 if (mdata->dysymtab == NULL)
1478 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
1479 * sizeof (arelent *);
1483 bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1484 struct bfd_symbol **syms)
1486 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1487 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1488 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1492 if (dysymtab == NULL)
1494 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1497 /* No need to go further if we don't know how to read relocs. */
1498 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1501 if (mdata->dyn_reloc_cache == NULL)
1503 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1504 * sizeof (arelent));
1508 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1509 dysymtab->nextrel, res, syms) < 0)
1515 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1517 res + dysymtab->nextrel, syms) < 0)
1523 mdata->dyn_reloc_cache = res;
1526 res = mdata->dyn_reloc_cache;
1527 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1533 /* In addition to the need to byte-swap the symbol number, the bit positions
1534 of the fields in the relocation information vary per target endian-ness. */
1537 bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
1538 bfd_mach_o_reloc_info *rel)
1540 unsigned char info = 0;
1542 BFD_ASSERT (rel->r_type <= 15);
1543 BFD_ASSERT (rel->r_length <= 3);
1545 if (bfd_big_endian (abfd))
1547 fields[0] = (rel->r_value >> 16) & 0xff;
1548 fields[1] = (rel->r_value >> 8) & 0xff;
1549 fields[2] = rel->r_value & 0xff;
1550 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1551 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1552 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1553 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1557 fields[2] = (rel->r_value >> 16) & 0xff;
1558 fields[1] = (rel->r_value >> 8) & 0xff;
1559 fields[0] = rel->r_value & 0xff;
1560 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1561 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1562 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1563 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1569 bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
1574 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1576 sec = section->bfdsection;
1577 if (sec->reloc_count == 0)
1580 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1583 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1586 /* Convert and write. */
1587 entries = section->bfdsection->orelocation;
1588 for (i = 0; i < section->nreloc; i++)
1590 arelent *rel = entries[i];
1591 struct mach_o_reloc_info_external raw;
1592 bfd_mach_o_reloc_info info, *pinfo = &info;
1594 /* Convert relocation to an intermediate representation. */
1595 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1598 /* Lower the relocation info. */
1599 if (pinfo->r_scattered)
1603 v = BFD_MACH_O_SR_SCATTERED
1604 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1605 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1606 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1607 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
1608 /* Note: scattered relocs have field in reverse order... */
1609 bfd_put_32 (abfd, v, raw.r_address);
1610 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1614 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1615 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
1619 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
1620 != BFD_MACH_O_RELENT_SIZE)
1627 bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
1629 struct mach_o_section_32_external raw;
1631 memcpy (raw.sectname, section->sectname, 16);
1632 memcpy (raw.segname, section->segname, 16);
1633 bfd_h_put_32 (abfd, section->addr, raw.addr);
1634 bfd_h_put_32 (abfd, section->size, raw.size);
1635 bfd_h_put_32 (abfd, section->offset, raw.offset);
1636 bfd_h_put_32 (abfd, section->align, raw.align);
1637 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1638 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1639 bfd_h_put_32 (abfd, section->flags, raw.flags);
1640 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1641 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1643 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
1644 != BFD_MACH_O_SECTION_SIZE)
1651 bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
1653 struct mach_o_section_64_external raw;
1655 memcpy (raw.sectname, section->sectname, 16);
1656 memcpy (raw.segname, section->segname, 16);
1657 bfd_h_put_64 (abfd, section->addr, raw.addr);
1658 bfd_h_put_64 (abfd, section->size, raw.size);
1659 bfd_h_put_32 (abfd, section->offset, raw.offset);
1660 bfd_h_put_32 (abfd, section->align, raw.align);
1661 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1662 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1663 bfd_h_put_32 (abfd, section->flags, raw.flags);
1664 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1665 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1666 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1668 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
1669 != BFD_MACH_O_SECTION_64_SIZE)
1676 bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1678 struct mach_o_segment_command_32_external raw;
1679 bfd_mach_o_segment_command *seg = &command->command.segment;
1680 bfd_mach_o_section *sec;
1682 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1684 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1685 if (!bfd_mach_o_write_relocs (abfd, sec))
1688 memcpy (raw.segname, seg->segname, 16);
1689 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1690 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1691 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1692 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1693 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1694 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1695 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1696 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1698 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1699 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1702 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1703 if (!bfd_mach_o_write_section_32 (abfd, sec))
1710 bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1712 struct mach_o_segment_command_64_external raw;
1713 bfd_mach_o_segment_command *seg = &command->command.segment;
1714 bfd_mach_o_section *sec;
1716 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1718 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1719 if (!bfd_mach_o_write_relocs (abfd, sec))
1722 memcpy (raw.segname, seg->segname, 16);
1723 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1724 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1725 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1726 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1727 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1728 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1729 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1730 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1732 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1733 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1736 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1737 if (!bfd_mach_o_write_section_64 (abfd, sec))
1744 bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
1746 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1748 unsigned int wide = bfd_mach_o_wide_p (abfd);
1749 struct bfd_strtab_hash *strtab;
1750 asymbol **symbols = bfd_get_outsymbols (abfd);
1753 /* Write the symbols first. */
1754 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1757 strtab = _bfd_stringtab_init ();
1762 /* Although we don't strictly need to do this, for compatibility with
1763 Darwin system tools, actually output an empty string for the index
1765 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1767 for (i = 0; i < sym->nsyms; i++)
1769 bfd_size_type str_index;
1770 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1772 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
1773 /* An index of 0 always means the empty string. */
1777 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
1779 if (str_index == (bfd_size_type) -1)
1785 struct mach_o_nlist_64_external raw;
1787 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1788 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1789 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1790 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1791 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1794 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1799 struct mach_o_nlist_external raw;
1801 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1802 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1803 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1804 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1805 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1808 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1812 sym->strsize = _bfd_stringtab_size (strtab);
1813 sym->stroff = mdata->filelen;
1814 mdata->filelen += sym->strsize;
1816 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
1819 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
1821 _bfd_stringtab_free (strtab);
1823 /* Pad string table. */
1824 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
1827 mdata->filelen += padlen;
1828 sym->strsize += padlen;
1833 _bfd_stringtab_free (strtab);
1838 bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1840 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1841 struct mach_o_symtab_command_external raw;
1843 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1846 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1847 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1848 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1849 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1851 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1852 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1858 /* Count the number of indirect symbols in the image.
1859 Requires that the sections are in their final order. */
1862 bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
1865 unsigned int nisyms = 0;
1867 for (i = 0; i < mdata->nsects; ++i)
1869 bfd_mach_o_section *sec = mdata->sections[i];
1871 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1873 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1874 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1875 case BFD_MACH_O_S_SYMBOL_STUBS:
1876 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1885 /* Create the dysymtab. */
1888 bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
1890 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1893 We are not going to try and fill these in yet and, moreover, we are
1894 going to bail if they are already set. */
1895 if (cmd->nmodtab != 0
1897 || cmd->nextrefsyms != 0)
1899 (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet"
1900 " implemented for dysymtab commands."));
1906 if (bfd_get_symcount (abfd) > 0)
1908 asymbol **symbols = bfd_get_outsymbols (abfd);
1911 /* Count the number of each kind of symbol. */
1912 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1914 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1915 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
1919 cmd->iextdefsym = i;
1920 for (; i < bfd_get_symcount (abfd); ++i)
1922 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1923 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
1926 cmd->nextdefsym = i - cmd->nlocalsym;
1927 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
1928 cmd->nundefsym = bfd_get_symcount (abfd)
1935 cmd->iextdefsym = 0;
1936 cmd->nextdefsym = 0;
1941 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
1942 if (cmd->nindirectsyms > 0)
1947 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
1948 cmd->indirectsymoff = mdata->filelen;
1949 mdata->filelen += cmd->nindirectsyms * 4;
1951 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
1952 if (cmd->indirect_syms == NULL)
1956 for (i = 0; i < mdata->nsects; ++i)
1958 bfd_mach_o_section *sec = mdata->sections[i];
1960 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1962 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1963 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1964 case BFD_MACH_O_S_SYMBOL_STUBS:
1967 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
1969 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1970 if (isyms == NULL || num == 0)
1972 /* Record the starting index in the reserved1 field. */
1974 for (j = 0; j < num; j++, n++)
1976 if (isyms[j] == NULL)
1977 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
1978 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
1979 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
1980 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
1981 | BFD_MACH_O_INDIRECT_SYM_ABS;
1983 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
1996 /* Write a dysymtab command.
1997 TODO: Possibly coalesce writes of smaller objects. */
2000 bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2002 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2004 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2006 if (cmd->nmodtab != 0)
2010 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2013 for (i = 0; i < cmd->nmodtab; i++)
2015 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2019 iinit = module->iinit & 0xffff;
2020 iinit |= ((module->iterm & 0xffff) << 16);
2022 ninit = module->ninit & 0xffff;
2023 ninit |= ((module->nterm & 0xffff) << 16);
2025 if (bfd_mach_o_wide_p (abfd))
2027 struct mach_o_dylib_module_64_external w;
2029 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2030 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2031 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2032 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2033 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2034 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2035 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2036 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2037 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2038 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2039 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2040 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2041 &w.objc_module_info_addr);
2042 bfd_h_put_32 (abfd, module->objc_module_info_size,
2043 &w.objc_module_info_size);
2045 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2050 struct mach_o_dylib_module_external n;
2052 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2053 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2054 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2055 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2056 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2057 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2058 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2059 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2060 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2061 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2062 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2063 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2064 &n.objc_module_info_addr);
2065 bfd_h_put_32 (abfd, module->objc_module_info_size,
2066 &n.objc_module_info_size);
2068 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2078 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2081 for (i = 0; i < cmd->ntoc; i++)
2083 struct mach_o_dylib_table_of_contents_external raw;
2084 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2086 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2087 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2089 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2094 if (cmd->nindirectsyms > 0)
2098 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2101 for (i = 0; i < cmd->nindirectsyms; ++i)
2103 unsigned char raw[4];
2105 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2106 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2111 if (cmd->nextrefsyms != 0)
2115 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2118 for (i = 0; i < cmd->nextrefsyms; i++)
2121 unsigned char raw[4];
2122 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2124 /* Fields isym and flags are written as bit-fields, thus we need
2125 a specific processing for endianness. */
2127 if (bfd_big_endian (abfd))
2129 v = ((ref->isym & 0xffffff) << 8);
2130 v |= ref->flags & 0xff;
2134 v = ref->isym & 0xffffff;
2135 v |= ((ref->flags & 0xff) << 24);
2138 bfd_h_put_32 (abfd, v, raw);
2139 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2145 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2149 struct mach_o_dysymtab_command_external raw;
2151 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2152 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2153 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2154 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2155 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2156 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2157 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2158 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2159 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2160 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2161 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2162 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2163 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2164 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2165 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2166 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2167 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2168 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2170 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2178 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
2180 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
2182 /* Just leave debug symbols where they are (pretend they are local, and
2183 then they will just be sorted on position). */
2184 if (s->n_type & BFD_MACH_O_N_STAB)
2187 /* Local (we should never see an undefined local AFAICT). */
2188 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
2191 /* Common symbols look like undefined externs. */
2192 if (mtyp == BFD_MACH_O_N_UNDF)
2195 /* A defined non-local, non-debug symbol. */
2200 bfd_mach_o_cf_symbols (const void *a, const void *b)
2202 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2203 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2204 unsigned int soa, sob;
2206 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2207 sob = bfd_mach_o_primary_symbol_sort_key (sb);
2214 /* If it's local or stab, just preserve the input order. */
2217 if (sa->symbol.udata.i < sb->symbol.udata.i)
2219 if (sa->symbol.udata.i > sb->symbol.udata.i)
2222 /* This is probably an error. */
2226 /* The second sort key is name. */
2227 return strcmp (sa->symbol.name, sb->symbol.name);
2230 /* Process the symbols.
2232 This should be OK for single-module files - but it is not likely to work
2233 for multi-module shared libraries.
2235 (a) If the application has not filled in the relevant mach-o fields, make
2238 (b) Order them, like this:
2241 ( ii) external defined
2243 (iii) external undefined/common
2250 bfd_mach_o_mangle_symbols (bfd *abfd)
2253 asymbol **symbols = bfd_get_outsymbols (abfd);
2255 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2258 for (i = 0; i < bfd_get_symcount (abfd); i++)
2260 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2262 /* We use this value, which is out-of-range as a symbol index, to signal
2263 that the mach-o-specific data are not filled in and need to be created
2264 from the bfd values. It is much preferable for the application to do
2265 this, since more meaningful diagnostics can be made that way. */
2267 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
2269 /* No symbol information has been set - therefore determine
2270 it from the bfd symbol flags/info. */
2271 if (s->symbol.section == bfd_abs_section_ptr)
2272 s->n_type = BFD_MACH_O_N_ABS;
2273 else if (s->symbol.section == bfd_und_section_ptr)
2275 s->n_type = BFD_MACH_O_N_UNDF;
2276 if (s->symbol.flags & BSF_WEAK)
2277 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
2278 /* mach-o automatically makes undefined symbols extern. */
2279 s->n_type |= BFD_MACH_O_N_EXT;
2280 s->symbol.flags |= BSF_GLOBAL;
2282 else if (s->symbol.section == bfd_com_section_ptr)
2284 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2285 s->symbol.flags |= BSF_GLOBAL;
2288 s->n_type = BFD_MACH_O_N_SECT;
2290 if (s->symbol.flags & BSF_GLOBAL)
2291 s->n_type |= BFD_MACH_O_N_EXT;
2294 /* Put the section index in, where required. */
2295 if ((s->symbol.section != bfd_abs_section_ptr
2296 && s->symbol.section != bfd_und_section_ptr
2297 && s->symbol.section != bfd_com_section_ptr)
2298 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2299 && s->symbol.name == NULL))
2300 s->n_sect = s->symbol.section->output_section->target_index;
2302 /* Number to preserve order for local and debug syms. */
2303 s->symbol.udata.i = i;
2306 /* Sort the symbols. */
2307 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2308 sizeof (asymbol *), bfd_mach_o_cf_symbols);
2310 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2312 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2313 s->symbol.udata.i = i; /* renumber. */
2319 /* We build a flat table of sections, which can be re-ordered if necessary.
2320 Fill in the section number and other mach-o-specific data. */
2323 bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2326 unsigned target_index;
2329 nsect = bfd_count_sections (abfd);
2331 /* Don't do it if it's already set - assume the application knows what it's
2333 if (mdata->nsects == nsect
2334 && (mdata->nsects == 0 || mdata->sections != NULL))
2337 mdata->nsects = nsect;
2338 mdata->sections = bfd_alloc (abfd,
2339 mdata->nsects * sizeof (bfd_mach_o_section *));
2340 if (mdata->sections == NULL)
2343 /* We need to check that this can be done... */
2345 (*_bfd_error_handler) (_("mach-o: there are too many sections (%d)"
2346 " maximum is 255,\n"), nsect);
2348 /* Create Mach-O sections.
2349 Section type, attribute and align should have been set when the
2350 section was created - either read in or specified. */
2352 for (sec = abfd->sections; sec; sec = sec->next)
2354 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2355 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2357 mdata->sections[target_index] = msect;
2359 msect->addr = bfd_get_section_vma (abfd, sec);
2360 msect->size = bfd_get_section_size (sec);
2362 /* Use the largest alignment set, in case it was bumped after the
2363 section was created. */
2364 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2367 sec->target_index = ++target_index;
2374 bfd_mach_o_write_contents (bfd *abfd)
2376 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2377 bfd_mach_o_load_command *cmd;
2378 bfd_mach_o_symtab_command *symtab = NULL;
2379 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2380 bfd_mach_o_segment_command *linkedit = NULL;
2382 /* Make the commands, if not already present. */
2383 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2385 abfd->output_has_begun = TRUE;
2387 /* Write the header. */
2388 if (!bfd_mach_o_write_header (abfd, &mdata->header))
2391 /* First pass: allocate the linkedit segment. */
2392 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2395 case BFD_MACH_O_LC_SEGMENT_64:
2396 case BFD_MACH_O_LC_SEGMENT:
2397 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2398 linkedit = &cmd->command.segment;
2400 case BFD_MACH_O_LC_SYMTAB:
2401 symtab = &cmd->command.symtab;
2403 case BFD_MACH_O_LC_DYSYMTAB:
2404 dysymtab = &cmd->command.dysymtab;
2406 case BFD_MACH_O_LC_DYLD_INFO:
2408 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2410 if (di->rebase_size != 0)
2412 di->rebase_off = mdata->filelen;
2413 mdata->filelen += di->rebase_size;
2415 if (di->bind_size != 0)
2417 di->bind_off = mdata->filelen;
2418 mdata->filelen += di->bind_size;
2420 if (di->weak_bind_size != 0)
2422 di->weak_bind_off = mdata->filelen;
2423 mdata->filelen += di->weak_bind_size;
2425 if (di->lazy_bind_size != 0)
2427 di->lazy_bind_off = mdata->filelen;
2428 mdata->filelen += di->lazy_bind_size;
2430 if (di->export_size != 0)
2432 di->export_off = mdata->filelen;
2433 mdata->filelen += di->export_size;
2437 case BFD_MACH_O_LC_LOAD_DYLIB:
2438 case BFD_MACH_O_LC_LOAD_DYLINKER:
2439 case BFD_MACH_O_LC_MAIN:
2440 /* Nothing to do. */
2443 (*_bfd_error_handler)
2444 (_("unable to allocate data for load command 0x%lx"),
2445 (unsigned long) cmd->type);
2449 /* Specially handle symtab and dysymtab. */
2451 /* Pre-allocate the symbol table (but not the string table). The reason
2452 is that the dysymtab is after the symbol table but before the string
2453 table (required by the native strip tool). */
2456 unsigned int symlen;
2457 unsigned int wide = bfd_mach_o_wide_p (abfd);
2459 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2461 /* Align for symbols. */
2462 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2463 symtab->symoff = mdata->filelen;
2465 symtab->nsyms = bfd_get_symcount (abfd);
2466 mdata->filelen += symtab->nsyms * symlen;
2469 /* Build the dysymtab. */
2470 if (dysymtab != NULL)
2471 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2474 /* Write symtab and strtab. */
2476 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2479 /* Adjust linkedit size. */
2480 if (linkedit != NULL)
2482 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2484 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2485 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2486 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2488 linkedit->initprot = BFD_MACH_O_PROT_READ;
2489 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2490 | BFD_MACH_O_PROT_EXECUTE;
2493 /* Second pass: write commands. */
2494 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2496 struct mach_o_load_command_external raw;
2497 unsigned long typeflag;
2499 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
2501 bfd_h_put_32 (abfd, typeflag, raw.cmd);
2502 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
2504 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
2505 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
2510 case BFD_MACH_O_LC_SEGMENT:
2511 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
2514 case BFD_MACH_O_LC_SEGMENT_64:
2515 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
2518 case BFD_MACH_O_LC_SYMTAB:
2519 if (!bfd_mach_o_write_symtab (abfd, cmd))
2522 case BFD_MACH_O_LC_DYSYMTAB:
2523 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
2526 case BFD_MACH_O_LC_THREAD:
2527 case BFD_MACH_O_LC_UNIXTHREAD:
2528 if (!bfd_mach_o_write_thread (abfd, cmd))
2531 case BFD_MACH_O_LC_LOAD_DYLIB:
2532 if (!bfd_mach_o_write_dylib (abfd, cmd))
2535 case BFD_MACH_O_LC_LOAD_DYLINKER:
2536 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2539 case BFD_MACH_O_LC_MAIN:
2540 if (!bfd_mach_o_write_main (abfd, cmd))
2543 case BFD_MACH_O_LC_DYLD_INFO:
2544 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2548 (*_bfd_error_handler)
2549 (_("unable to write unknown load command 0x%lx"),
2550 (unsigned long) cmd->type);
2559 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
2560 bfd_mach_o_section *s)
2562 if (seg->sect_head == NULL)
2565 seg->sect_tail->next = s;
2569 /* Create section Mach-O flags from BFD flags. */
2572 bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2576 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2578 /* Create default flags. */
2579 bfd_flags = bfd_get_section_flags (abfd, sec);
2580 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2581 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2582 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2583 | BFD_MACH_O_S_REGULAR;
2584 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2585 s->flags = BFD_MACH_O_S_ZEROFILL;
2586 else if (bfd_flags & SEC_DEBUGGING)
2587 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2589 s->flags = BFD_MACH_O_S_REGULAR;
2593 bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2595 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2599 seg->fileoff = mdata->filelen;
2600 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2601 | BFD_MACH_O_PROT_EXECUTE;
2602 seg->maxprot = seg->initprot;
2604 /* Append sections to the segment.
2606 This is a little tedious, we have to honor the need to account zerofill
2607 sections after all the rest. This forces us to do the calculation of
2608 total vmsize in three passes so that any alignment increments are
2609 properly accounted. */
2610 for (i = 0; i < mdata->nsects; ++i)
2612 bfd_mach_o_section *s = mdata->sections[i];
2613 asection *sec = s->bfdsection;
2615 /* Although we account for zerofill section sizes in vm order, they are
2616 placed in the file in source sequence. */
2617 bfd_mach_o_append_section_to_segment (seg, s);
2620 /* Zerofill sections have zero file size & offset, the only content
2621 written to the file is the symbols. */
2622 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2623 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2624 == BFD_MACH_O_S_GB_ZEROFILL))
2627 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2628 sections, even those with zero size. */
2631 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2632 seg->vmsize += s->size;
2634 /* MH_OBJECT files have unaligned content. */
2637 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2638 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2640 seg->filesize += s->size;
2642 /* The system tools write even zero-sized sections with an offset
2643 field set to the current file position. */
2644 s->offset = mdata->filelen;
2647 sec->filepos = s->offset;
2648 mdata->filelen += s->size;
2651 /* Now pass through again, for zerofill, only now we just update the
2652 vmsize, and then for zerofill_GB. */
2653 for (j = 0; j < 2; j++)
2658 stype = BFD_MACH_O_S_ZEROFILL;
2660 stype = BFD_MACH_O_S_GB_ZEROFILL;
2662 for (i = 0; i < mdata->nsects; ++i)
2664 bfd_mach_o_section *s = mdata->sections[i];
2666 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2671 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2672 seg->vmsize += s->size;
2677 /* Allocate space for the relocations. */
2678 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2680 for (i = 0; i < mdata->nsects; ++i)
2682 bfd_mach_o_section *ms = mdata->sections[i];
2683 asection *sec = ms->bfdsection;
2685 ms->nreloc = sec->reloc_count;
2686 if (ms->nreloc == 0)
2688 /* Clear nreloc and reloff if there is no relocs. */
2692 sec->rel_filepos = mdata->filelen;
2693 ms->reloff = sec->rel_filepos;
2694 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2701 bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2703 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2705 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2707 bfd_mach_o_section *s;
2711 seg->fileoff = mdata->filelen;
2716 /* Append sections to the segment. We assume they are properly ordered
2717 by vma (but we check that). */
2719 for (i = 0; i < mdata->nsects; ++i)
2721 s = mdata->sections[i];
2723 /* Consider only sections for this segment. */
2724 if (strcmp (seg->segname, s->segname) != 0)
2727 bfd_mach_o_append_section_to_segment (seg, s);
2729 BFD_ASSERT (s->addr >= vma);
2730 vma = s->addr + s->size;
2733 /* Set segment file offset: make it page aligned. */
2734 vma = seg->sect_head->addr;
2735 seg->vmaddr = vma & ~pagemask;
2736 if ((mdata->filelen & pagemask) > (vma & pagemask))
2737 mdata->filelen += pagemask + 1;
2738 seg->fileoff = mdata->filelen & ~pagemask;
2739 mdata->filelen = seg->fileoff + (vma & pagemask);
2741 /* Set section file offset. */
2742 for (s = seg->sect_head; s != NULL; s = s->next)
2744 asection *sec = s->bfdsection;
2745 flagword flags = bfd_get_section_flags (abfd, sec);
2747 /* Adjust segment size. */
2748 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2749 seg->vmsize += s->size;
2751 /* File offset and length. */
2752 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2754 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2755 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2756 != BFD_MACH_O_S_GB_ZEROFILL))
2758 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2760 s->offset = mdata->filelen;
2761 s->bfdsection->filepos = s->offset;
2763 seg->filesize += s->size;
2764 mdata->filelen += s->size;
2769 s->bfdsection->filepos = 0;
2772 /* Set protection. */
2773 if (flags & SEC_LOAD)
2775 if (flags & SEC_CODE)
2776 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
2777 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
2778 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
2781 /* Relocs shouldn't appear in non-object files. */
2782 if (s->bfdsection->reloc_count != 0)
2787 if (seg->initprot != 0)
2788 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2789 | BFD_MACH_O_PROT_EXECUTE;
2793 /* Round segment size (and file size). */
2794 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
2795 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
2796 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
2801 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
2802 fields in header. */
2805 bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
2807 unsigned wide = mach_o_wide_p (&mdata->header);
2808 unsigned int hdrlen;
2810 bfd_mach_o_load_command *cmd;
2813 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2814 align = wide ? 8 - 1 : 4 - 1;
2816 mdata->header.ncmds = 0;
2818 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
2820 mdata->header.ncmds++;
2821 cmd->offset = offset;
2825 case BFD_MACH_O_LC_SEGMENT_64:
2826 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2827 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
2829 case BFD_MACH_O_LC_SEGMENT:
2830 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2831 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
2833 case BFD_MACH_O_LC_SYMTAB:
2834 cmd->len = sizeof (struct mach_o_symtab_command_external)
2835 + BFD_MACH_O_LC_SIZE;
2837 case BFD_MACH_O_LC_DYSYMTAB:
2838 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2839 + BFD_MACH_O_LC_SIZE;
2841 case BFD_MACH_O_LC_LOAD_DYLIB:
2842 cmd->len = sizeof (struct mach_o_dylib_command_external)
2843 + BFD_MACH_O_LC_SIZE;
2844 cmd->command.dylib.name_offset = cmd->len;
2845 cmd->len += strlen (cmd->command.dylib.name_str);
2846 cmd->len = (cmd->len + align) & ~align;
2848 case BFD_MACH_O_LC_LOAD_DYLINKER:
2849 cmd->len = sizeof (struct mach_o_str_command_external)
2850 + BFD_MACH_O_LC_SIZE;
2851 cmd->command.dylinker.name_offset = cmd->len;
2852 cmd->len += strlen (cmd->command.dylinker.name_str);
2853 cmd->len = (cmd->len + align) & ~align;
2855 case BFD_MACH_O_LC_MAIN:
2856 cmd->len = sizeof (struct mach_o_entry_point_command_external)
2857 + BFD_MACH_O_LC_SIZE;
2859 case BFD_MACH_O_LC_DYLD_INFO:
2860 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
2861 + BFD_MACH_O_LC_SIZE;
2864 (*_bfd_error_handler)
2865 (_("unable to layout unknown load command 0x%lx"),
2866 (unsigned long) cmd->type);
2870 BFD_ASSERT (cmd->len % (align + 1) == 0);
2873 mdata->header.sizeofcmds = offset - hdrlen;
2874 mdata->filelen = offset;
2877 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
2881 bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
2882 bfd_mach_o_load_command *cmd,
2883 const char *segname, unsigned int nbr_sect)
2885 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2886 unsigned wide = mach_o_wide_p (&mdata->header);
2888 /* Init segment command. */
2889 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
2890 cmd->type_required = FALSE;
2892 strcpy (seg->segname, segname);
2893 seg->nsects = nbr_sect;
2903 seg->sect_head = NULL;
2904 seg->sect_tail = NULL;
2907 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2908 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2909 and copy functionality. */
2912 bfd_mach_o_build_commands (bfd *abfd)
2914 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2915 unsigned wide = mach_o_wide_p (&mdata->header);
2916 unsigned int nbr_segcmd = 0;
2917 bfd_mach_o_load_command *commands;
2918 unsigned int nbr_commands;
2919 int symtab_idx = -1;
2920 int dysymtab_idx = -1;
2924 /* Return now if already built. */
2925 if (mdata->header.ncmds != 0)
2928 /* Fill in the file type, if not already set. */
2929 if (mdata->header.filetype == 0)
2931 if (abfd->flags & EXEC_P)
2932 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2933 else if (abfd->flags & DYNAMIC)
2934 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2936 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
2939 /* If hasn't already been done, flatten sections list, and sort
2940 if/when required. Must be done before the symbol table is adjusted,
2941 since that depends on properly numbered sections. */
2942 if (mdata->nsects == 0 || mdata->sections == NULL)
2943 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2946 /* Order the symbol table, fill-in/check mach-o specific fields and
2947 partition out any indirect symbols. */
2948 if (!bfd_mach_o_mangle_symbols (abfd))
2951 /* Segment commands. */
2952 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
2954 /* Only one segment for all the sections. But the segment is
2955 optional if there is no sections. */
2956 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
2960 bfd_mach_o_section *prev_sect = NULL;
2962 /* One pagezero segment and one linkedit segment. */
2965 /* Create one segment for associated segment name in sections.
2966 Assume that sections with the same segment name are consecutive. */
2967 for (i = 0; i < mdata->nsects; i++)
2969 bfd_mach_o_section *this_sect = mdata->sections[i];
2971 if (prev_sect == NULL
2972 || strcmp (prev_sect->segname, this_sect->segname) != 0)
2975 prev_sect = this_sect;
2980 nbr_commands = nbr_segcmd;
2982 /* One command for the symbol table (only if there are symbols. */
2983 if (bfd_get_symcount (abfd) > 0)
2984 symtab_idx = nbr_commands++;
2987 This is a rather crude test for whether we should build a dysymtab. */
2988 if (bfd_mach_o_should_emit_dysymtab ()
2989 && bfd_get_symcount (abfd))
2991 /* If there should be a case where a dysymtab could be emitted without
2992 a symtab (seems improbable), this would need amending. */
2993 dysymtab_idx = nbr_commands++;
2996 /* Add an entry point command. */
2997 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
2998 && bfd_get_start_address (abfd) != 0)
2999 main_idx = nbr_commands++;
3001 /* Well, we must have a header, at least. */
3002 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3004 /* A bit unusual, but no content is valid;
3005 as -n empty.s -o empty.o */
3006 if (nbr_commands == 0)
3008 /* Layout commands (well none...) and set headers command fields. */
3009 bfd_mach_o_layout_commands (mdata);
3013 /* Create commands for segments (and symtabs), prepend them. */
3014 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3015 if (commands == NULL)
3017 for (i = 0; i < nbr_commands - 1; i++)
3018 commands[i].next = &commands[i + 1];
3019 commands[nbr_commands - 1].next = mdata->first_command;
3020 if (mdata->first_command == NULL)
3021 mdata->last_command = &commands[nbr_commands - 1];
3022 mdata->first_command = &commands[0];
3024 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3026 /* For object file, there is only one segment. */
3027 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3029 else if (nbr_segcmd != 0)
3031 bfd_mach_o_load_command *cmd;
3033 BFD_ASSERT (nbr_segcmd >= 2);
3037 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3039 /* Segments from sections. */
3041 for (i = 0; i < mdata->nsects;)
3043 const char *segname = mdata->sections[i]->segname;
3044 unsigned int nbr_sect = 1;
3046 /* Count number of sections for this segment. */
3047 for (i++; i < mdata->nsects; i++)
3048 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3053 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3058 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
3061 if (symtab_idx >= 0)
3063 /* Init symtab command. */
3064 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
3066 cmd->type = BFD_MACH_O_LC_SYMTAB;
3067 cmd->type_required = FALSE;
3070 /* If required, setup symtab command, see comment above about the quality
3072 if (dysymtab_idx >= 0)
3074 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
3076 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
3077 cmd->type_required = FALSE;
3080 /* Create the main command. */
3083 bfd_mach_o_load_command *cmd = &commands[main_idx];
3085 cmd->type = BFD_MACH_O_LC_MAIN;
3086 cmd->type_required = TRUE;
3088 cmd->command.main.entryoff = 0;
3089 cmd->command.main.stacksize = 0;
3092 /* Layout commands. */
3093 bfd_mach_o_layout_commands (mdata);
3095 /* So, now we have sized the commands and the filelen set to that.
3096 Now we can build the segment command and set the section file offsets. */
3097 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3099 for (i = 0; i < nbr_segcmd; i++)
3100 if (!bfd_mach_o_build_obj_seg_command
3101 (abfd, &commands[i].command.segment))
3108 /* Skip pagezero and linkedit segments. */
3109 for (i = 1; i < nbr_segcmd - 1; i++)
3111 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3113 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3116 if (seg->vmaddr + seg->vmsize > maxvma)
3117 maxvma = seg->vmaddr + seg->vmsize;
3120 /* Set the size of __PAGEZERO. */
3121 commands[0].command.segment.vmsize =
3122 commands[1].command.segment.vmaddr;
3124 /* Set the vma and fileoff of __LINKEDIT. */
3125 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3126 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3128 /* Set entry point (once segments have been laid out). */
3130 commands[main_idx].command.main.entryoff =
3131 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3137 /* Set the contents of a section. */
3140 bfd_mach_o_set_section_contents (bfd *abfd,
3142 const void * location,
3144 bfd_size_type count)
3148 /* Trying to write the first section contents will trigger the creation of
3149 the load commands if they are not already present. */
3150 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
3156 pos = section->filepos + offset;
3157 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3158 || bfd_bwrite (location, count, abfd) != count)
3165 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
3166 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3171 /* Make an empty symbol. This is required only because
3172 bfd_make_section_anyway wants to create a symbol for the section. */
3175 bfd_mach_o_make_empty_symbol (bfd *abfd)
3177 asymbol *new_symbol;
3179 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3180 if (new_symbol == NULL)
3182 new_symbol->the_bfd = abfd;
3183 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
3188 bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
3190 struct mach_o_header_external raw;
3192 bfd_vma (*get32) (const void *) = NULL;
3194 /* Just read the magic number. */
3195 if (bfd_seek (abfd, 0, SEEK_SET) != 0
3196 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
3199 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3201 header->byteorder = BFD_ENDIAN_BIG;
3202 header->magic = BFD_MACH_O_MH_MAGIC;
3203 header->version = 1;
3206 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3208 header->byteorder = BFD_ENDIAN_LITTLE;
3209 header->magic = BFD_MACH_O_MH_MAGIC;
3210 header->version = 1;
3213 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3215 header->byteorder = BFD_ENDIAN_BIG;
3216 header->magic = BFD_MACH_O_MH_MAGIC_64;
3217 header->version = 2;
3220 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3222 header->byteorder = BFD_ENDIAN_LITTLE;
3223 header->magic = BFD_MACH_O_MH_MAGIC_64;
3224 header->version = 2;
3229 header->byteorder = BFD_ENDIAN_UNKNOWN;
3233 /* Once the size of the header is known, read the full header. */
3234 size = mach_o_wide_p (header) ?
3235 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3237 if (bfd_seek (abfd, 0, SEEK_SET) != 0
3238 || bfd_bread (&raw, size, abfd) != size)
3241 header->cputype = (*get32) (raw.cputype);
3242 header->cpusubtype = (*get32) (raw.cpusubtype);
3243 header->filetype = (*get32) (raw.filetype);
3244 header->ncmds = (*get32) (raw.ncmds);
3245 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3246 header->flags = (*get32) (raw.flags);
3248 if (mach_o_wide_p (header))
3249 header->reserved = (*get32) (raw.reserved);
3251 header->reserved = 0;
3257 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3259 bfd_mach_o_section *s;
3260 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
3262 s = bfd_mach_o_get_mach_o_section (sec);
3266 static const mach_o_section_name_xlat * xlat;
3268 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3271 sec->used_by_bfd = s;
3272 s->bfdsection = sec;
3274 /* Create the Darwin seg/sect name pair from the bfd name.
3275 If this is a canonical name for which a specific paiting exists
3276 there will also be defined flags, type, attribute and alignment
3278 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3281 s->flags = xlat->macho_sectype | xlat->macho_secattr;
3282 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
3284 (void) bfd_set_section_alignment (abfd, sec, s->align);
3285 bfd_flags = bfd_get_section_flags (abfd, sec);
3286 if (bfd_flags == SEC_NO_FLAGS)
3287 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3290 /* Create default flags. */
3291 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
3294 return _bfd_generic_new_section_hook (abfd, sec);
3298 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3302 bfd_mach_o_section *section;
3304 flags = bfd_get_section_flags (abfd, sec);
3305 section = bfd_mach_o_get_mach_o_section (sec);
3307 /* TODO: see if we should use the xlat system for doing this by
3308 preference and fall back to this for unknown sections. */
3310 if (flags == SEC_NO_FLAGS)
3312 /* Try to guess flags. */
3313 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3314 flags = SEC_DEBUGGING;
3318 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3319 != BFD_MACH_O_S_ZEROFILL)
3322 if (prot & BFD_MACH_O_PROT_EXECUTE)
3324 if (prot & BFD_MACH_O_PROT_WRITE)
3326 else if (prot & BFD_MACH_O_PROT_READ)
3327 flags |= SEC_READONLY;
3333 if ((flags & SEC_DEBUGGING) == 0)
3337 if (section->offset != 0)
3338 flags |= SEC_HAS_CONTENTS;
3339 if (section->nreloc != 0)
3342 bfd_set_section_flags (abfd, sec, flags);
3344 sec->vma = section->addr;
3345 sec->lma = section->addr;
3346 sec->size = section->size;
3347 sec->filepos = section->offset;
3348 sec->alignment_power = section->align;
3349 sec->segment_mark = 0;
3350 sec->reloc_count = section->nreloc;
3351 sec->rel_filepos = section->reloff;
3355 bfd_mach_o_make_bfd_section (bfd *abfd,
3356 const unsigned char *segname,
3357 const unsigned char *sectname)
3362 bfd_mach_o_convert_section_name_to_bfd
3363 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3367 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3371 bfd_mach_o_read_section_32 (bfd *abfd,
3372 unsigned int offset,
3375 struct mach_o_section_32_external raw;
3377 bfd_mach_o_section *section;
3379 if (bfd_seek (abfd, offset, SEEK_SET) != 0
3380 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3381 != BFD_MACH_O_SECTION_SIZE))
3384 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3388 section = bfd_mach_o_get_mach_o_section (sec);
3389 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3390 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3391 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3392 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3393 section->addr = bfd_h_get_32 (abfd, raw.addr);
3394 section->size = bfd_h_get_32 (abfd, raw.size);
3395 section->offset = bfd_h_get_32 (abfd, raw.offset);
3396 section->align = bfd_h_get_32 (abfd, raw.align);
3397 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3398 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3399 section->flags = bfd_h_get_32 (abfd, raw.flags);
3400 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3401 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3402 section->reserved3 = 0;
3404 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3410 bfd_mach_o_read_section_64 (bfd *abfd,
3411 unsigned int offset,
3414 struct mach_o_section_64_external raw;
3416 bfd_mach_o_section *section;
3418 if (bfd_seek (abfd, offset, SEEK_SET) != 0
3419 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3420 != BFD_MACH_O_SECTION_64_SIZE))
3423 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3427 section = bfd_mach_o_get_mach_o_section (sec);
3428 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3429 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3430 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3431 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3432 section->addr = bfd_h_get_64 (abfd, raw.addr);
3433 section->size = bfd_h_get_64 (abfd, raw.size);
3434 section->offset = bfd_h_get_32 (abfd, raw.offset);
3435 section->align = bfd_h_get_32 (abfd, raw.align);
3436 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3437 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3438 section->flags = bfd_h_get_32 (abfd, raw.flags);
3439 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3440 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3441 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3443 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3449 bfd_mach_o_read_section (bfd *abfd,
3450 unsigned int offset,
3455 return bfd_mach_o_read_section_64 (abfd, offset, prot);
3457 return bfd_mach_o_read_section_32 (abfd, offset, prot);
3461 bfd_mach_o_read_symtab_symbol (bfd *abfd,
3462 bfd_mach_o_symtab_command *sym,
3463 bfd_mach_o_asymbol *s,
3466 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3467 unsigned int wide = mach_o_wide_p (&mdata->header);
3468 unsigned int symwidth =
3469 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
3470 unsigned int symoff = sym->symoff + (i * symwidth);
3471 struct mach_o_nlist_64_external raw;
3472 unsigned char type = -1;
3473 unsigned char section = -1;
3475 symvalue value = -1;
3476 unsigned long stroff = -1;
3477 unsigned int symtype = -1;
3479 BFD_ASSERT (sym->strtab != NULL);
3481 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
3482 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3484 (*_bfd_error_handler)
3485 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
3486 symwidth, (unsigned long) symoff);
3490 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3491 type = bfd_h_get_8 (abfd, raw.n_type);
3492 symtype = type & BFD_MACH_O_N_TYPE;
3493 section = bfd_h_get_8 (abfd, raw.n_sect);
3494 desc = bfd_h_get_16 (abfd, raw.n_desc);
3496 value = bfd_h_get_64 (abfd, raw.n_value);
3498 value = bfd_h_get_32 (abfd, raw.n_value);
3500 if (stroff >= sym->strsize)
3502 (*_bfd_error_handler)
3503 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
3504 (unsigned long) stroff,
3505 (unsigned long) sym->strsize);
3509 s->symbol.the_bfd = abfd;
3510 s->symbol.name = sym->strtab + stroff;
3511 s->symbol.value = value;
3512 s->symbol.flags = 0x0;
3513 s->symbol.udata.i = i;
3515 s->n_sect = section;
3518 if (type & BFD_MACH_O_N_STAB)
3520 s->symbol.flags |= BSF_DEBUGGING;
3521 s->symbol.section = bfd_und_section_ptr;
3533 if ((section > 0) && (section <= mdata->nsects))
3535 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3537 s->symbol.value - mdata->sections[section - 1]->addr;
3544 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
3545 s->symbol.flags |= BSF_GLOBAL;
3547 s->symbol.flags |= BSF_LOCAL;
3551 case BFD_MACH_O_N_UNDF:
3552 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3553 && s->symbol.value != 0)
3555 /* A common symbol. */
3556 s->symbol.section = bfd_com_section_ptr;
3557 s->symbol.flags = BSF_NO_FLAGS;
3561 s->symbol.section = bfd_und_section_ptr;
3562 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3563 s->symbol.flags |= BSF_WEAK;
3566 case BFD_MACH_O_N_PBUD:
3567 s->symbol.section = bfd_und_section_ptr;
3569 case BFD_MACH_O_N_ABS:
3570 s->symbol.section = bfd_abs_section_ptr;
3572 case BFD_MACH_O_N_SECT:
3573 if ((section > 0) && (section <= mdata->nsects))
3575 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3577 s->symbol.value - mdata->sections[section - 1]->addr;
3581 /* Mach-O uses 0 to mean "no section"; not an error. */
3584 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3585 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
3586 s->symbol.name, section, mdata->nsects);
3588 s->symbol.section = bfd_und_section_ptr;
3591 case BFD_MACH_O_N_INDR:
3592 /* FIXME: we don't follow the BFD convention as this indirect symbol
3593 won't be followed by the referenced one. This looks harmless
3594 unless we start using the linker. */
3595 s->symbol.flags |= BSF_INDIRECT;
3596 s->symbol.section = bfd_ind_section_ptr;
3597 s->symbol.value = 0;
3600 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3601 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
3602 s->symbol.name, symtype);
3603 s->symbol.section = bfd_und_section_ptr;
3612 bfd_mach_o_read_symtab_strtab (bfd *abfd)
3614 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3615 bfd_mach_o_symtab_command *sym = mdata->symtab;
3617 /* Fail if there is no symtab. */
3621 /* Success if already loaded. */
3625 if (abfd->flags & BFD_IN_MEMORY)
3627 struct bfd_in_memory *b;
3629 b = (struct bfd_in_memory *) abfd->iostream;
3631 if ((sym->stroff + sym->strsize) > b->size)
3633 bfd_set_error (bfd_error_file_truncated);
3636 sym->strtab = (char *) b->buffer + sym->stroff;
3640 sym->strtab = bfd_alloc (abfd, sym->strsize);
3641 if (sym->strtab == NULL)
3644 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
3645 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3647 bfd_set_error (bfd_error_file_truncated);
3656 bfd_mach_o_read_symtab_symbols (bfd *abfd)
3658 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3659 bfd_mach_o_symtab_command *sym = mdata->symtab;
3662 if (sym == NULL || sym->symbols)
3664 /* Return now if there are no symbols or if already loaded. */
3668 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
3670 if (sym->symbols == NULL)
3672 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
3676 if (!bfd_mach_o_read_symtab_strtab (abfd))
3679 for (i = 0; i < sym->nsyms; i++)
3681 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3689 bfd_mach_o_i386_flavour_string (unsigned int flavour)
3691 switch ((int) flavour)
3693 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3694 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3695 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3696 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3697 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3698 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3699 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3700 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3701 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3702 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3703 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3704 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
3705 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3706 default: return "UNKNOWN";
3711 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3713 switch ((int) flavour)
3715 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3716 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3717 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3718 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3719 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3720 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3721 default: return "UNKNOWN";
3726 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3728 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
3729 struct mach_o_str_command_external raw;
3730 unsigned int nameoff;
3731 unsigned int namelen;
3733 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3734 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3737 nameoff = bfd_h_get_32 (abfd, raw.str);
3739 cmd->name_offset = nameoff;
3740 namelen = command->len - nameoff;
3741 nameoff += command->offset;
3742 cmd->name_str = bfd_alloc (abfd, namelen);
3743 if (cmd->name_str == NULL)
3745 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3746 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3752 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3754 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
3755 struct mach_o_dylib_command_external raw;
3756 unsigned int nameoff;
3757 unsigned int namelen;
3759 switch (command->type)
3761 case BFD_MACH_O_LC_LOAD_DYLIB:
3762 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3763 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3764 case BFD_MACH_O_LC_ID_DYLIB:
3765 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3766 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3773 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3774 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3777 nameoff = bfd_h_get_32 (abfd, raw.name);
3778 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3779 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3780 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3782 cmd->name_offset = command->offset + nameoff;
3783 namelen = command->len - nameoff;
3784 cmd->name_str = bfd_alloc (abfd, namelen);
3785 if (cmd->name_str == NULL)
3787 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3788 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3794 bfd_mach_o_read_prebound_dylib (bfd *abfd,
3795 bfd_mach_o_load_command *command)
3797 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
3798 struct mach_o_prebound_dylib_command_external raw;
3799 unsigned int nameoff;
3800 unsigned int modoff;
3801 unsigned int str_len;
3804 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3805 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3808 nameoff = bfd_h_get_32 (abfd, raw.name);
3809 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
3810 if (nameoff > command->len || modoff > command->len)
3813 str_len = command->len - sizeof (raw);
3814 str = bfd_alloc (abfd, str_len);
3817 if (bfd_bread (str, str_len, abfd) != str_len)
3820 cmd->name_offset = command->offset + nameoff;
3821 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
3822 cmd->linked_modules_offset = command->offset + modoff;
3824 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3825 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3830 bfd_mach_o_read_prebind_cksum (bfd *abfd,
3831 bfd_mach_o_load_command *command)
3833 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
3834 struct mach_o_prebind_cksum_command_external raw;
3836 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3837 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3840 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
3845 bfd_mach_o_read_twolevel_hints (bfd *abfd,
3846 bfd_mach_o_load_command *command)
3848 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
3849 struct mach_o_twolevel_hints_command_external raw;
3851 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3852 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3855 cmd->offset = bfd_get_32 (abfd, raw.offset);
3856 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
3861 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3863 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3864 struct mach_o_fvmlib_command_external raw;
3865 unsigned int nameoff;
3866 unsigned int namelen;
3868 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3869 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3872 nameoff = bfd_h_get_32 (abfd, raw.name);
3873 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3874 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3876 fvm->name_offset = command->offset + nameoff;
3877 namelen = command->len - nameoff;
3878 fvm->name_str = bfd_alloc (abfd, namelen);
3879 if (fvm->name_str == NULL)
3881 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3882 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
3888 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3890 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3891 bfd_mach_o_thread_command *cmd = &command->command.thread;
3892 unsigned int offset;
3893 unsigned int nflavours;
3896 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3897 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3899 /* Count the number of threads. */
3902 while (offset != command->len)
3904 struct mach_o_thread_command_external raw;
3906 if (offset >= command->len)
3909 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3910 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3913 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3917 /* Allocate threads. */
3918 cmd->flavours = bfd_alloc
3919 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3920 if (cmd->flavours == NULL)
3922 cmd->nflavours = nflavours;
3926 while (offset != command->len)
3928 struct mach_o_thread_command_external raw;
3930 if (offset >= command->len)
3933 if (nflavours >= cmd->nflavours)
3936 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3937 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3940 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3941 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3942 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3943 offset += cmd->flavours[nflavours].size + sizeof (raw);
3947 for (i = 0; i < nflavours; i++)
3950 unsigned int snamelen;
3952 const char *flavourstr;
3953 const char *prefix = "LC_THREAD";
3956 switch (mdata->header.cputype)
3958 case BFD_MACH_O_CPU_TYPE_POWERPC:
3959 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
3961 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3963 case BFD_MACH_O_CPU_TYPE_I386:
3964 case BFD_MACH_O_CPU_TYPE_X86_64:
3966 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3969 flavourstr = "UNKNOWN_ARCHITECTURE";
3973 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
3974 sname = bfd_alloc (abfd, snamelen);
3980 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
3981 if (bfd_get_section_by_name (abfd, sname) == NULL)
3986 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
3990 bfdsec->size = cmd->flavours[i].size;
3991 bfdsec->filepos = cmd->flavours[i].offset;
3992 bfdsec->alignment_power = 0x0;
3994 cmd->section = bfdsec;
4001 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
4003 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
4004 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4006 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4009 struct mach_o_dysymtab_command_external raw;
4011 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4012 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4015 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4016 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4017 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4018 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4019 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4020 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4021 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4022 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4023 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4024 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4025 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4026 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4027 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4028 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4029 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4030 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4031 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4032 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4035 if (cmd->nmodtab != 0)
4038 int wide = bfd_mach_o_wide_p (abfd);
4039 unsigned int module_len = wide ? 56 : 52;
4042 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
4043 if (cmd->dylib_module == NULL)
4046 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
4049 for (i = 0; i < cmd->nmodtab; i++)
4051 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4053 unsigned char buf[56];
4055 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4058 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4059 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4060 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4061 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4062 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4063 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4064 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4065 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4066 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4067 v = bfd_h_get_32 (abfd, buf +36);
4068 module->iinit = v & 0xffff;
4069 module->iterm = (v >> 16) & 0xffff;
4070 v = bfd_h_get_32 (abfd, buf + 40);
4071 module->ninit = v & 0xffff;
4072 module->nterm = (v >> 16) & 0xffff;
4075 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4076 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4080 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4081 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4090 cmd->dylib_toc = bfd_alloc
4091 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
4092 if (cmd->dylib_toc == NULL)
4095 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
4098 for (i = 0; i < cmd->ntoc; i++)
4100 struct mach_o_dylib_table_of_contents_external raw;
4101 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4103 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4106 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4107 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4111 if (cmd->nindirectsyms != 0)
4115 cmd->indirect_syms = bfd_alloc
4116 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
4117 if (cmd->indirect_syms == NULL)
4120 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
4123 for (i = 0; i < cmd->nindirectsyms; i++)
4125 unsigned char raw[4];
4126 unsigned int *is = &cmd->indirect_syms[i];
4128 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4131 *is = bfd_h_get_32 (abfd, raw);
4135 if (cmd->nextrefsyms != 0)
4140 cmd->ext_refs = bfd_alloc
4141 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
4142 if (cmd->ext_refs == NULL)
4145 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
4148 for (i = 0; i < cmd->nextrefsyms; i++)
4150 unsigned char raw[4];
4151 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4153 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4156 /* Fields isym and flags are written as bit-fields, thus we need
4157 a specific processing for endianness. */
4158 v = bfd_h_get_32 (abfd, raw);
4159 if (bfd_big_endian (abfd))
4161 ref->isym = (v >> 8) & 0xffffff;
4162 ref->flags = v & 0xff;
4166 ref->isym = v & 0xffffff;
4167 ref->flags = (v >> 24) & 0xff;
4172 if (mdata->dysymtab)
4174 mdata->dysymtab = cmd;
4180 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
4182 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4183 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4184 struct mach_o_symtab_command_external raw;
4186 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4188 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4189 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4192 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4193 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4194 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4195 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
4196 symtab->symbols = NULL;
4197 symtab->strtab = NULL;
4199 if (symtab->nsyms != 0)
4200 abfd->flags |= HAS_SYMS;
4204 mdata->symtab = symtab;
4209 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
4211 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
4213 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4215 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4216 || bfd_bread (cmd->uuid, 16, abfd) != 16)
4223 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
4225 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
4226 struct mach_o_linkedit_data_command_external raw;
4228 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4229 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4232 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4233 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
4238 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
4240 bfd_mach_o_str_command *cmd = &command->command.str;
4241 struct mach_o_str_command_external raw;
4244 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4245 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4248 off = bfd_get_32 (abfd, raw.str);
4249 cmd->stroff = command->offset + off;
4250 cmd->str_len = command->len - off;
4251 cmd->str = bfd_alloc (abfd, cmd->str_len);
4252 if (cmd->str == NULL)
4254 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
4255 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
4260 static unsigned char *
4261 bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4265 buf = bfd_alloc (abfd, size);
4268 if (bfd_seek (abfd, off, SEEK_SET) != 0
4269 || bfd_bread (buf, size, abfd) != size)
4275 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4277 /* Read rebase content. */
4278 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4280 cmd->rebase_content =
4281 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4282 if (cmd->rebase_content == NULL)
4286 /* Read bind content. */
4287 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4290 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4291 if (cmd->bind_content == NULL)
4295 /* Read weak bind content. */
4296 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4298 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4299 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4300 if (cmd->weak_bind_content == NULL)
4304 /* Read lazy bind content. */
4305 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4307 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4308 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4309 if (cmd->lazy_bind_content == NULL)
4313 /* Read export content. */
4314 if (cmd->export_content == NULL && cmd->export_size != 0)
4316 cmd->export_content = bfd_mach_o_alloc_and_read
4317 (abfd, cmd->export_off, cmd->export_size);
4318 if (cmd->export_content == NULL)
4326 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
4328 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
4329 struct mach_o_dyld_info_command_external raw;
4331 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4332 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4335 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4336 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
4337 cmd->rebase_content = NULL;
4338 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4339 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
4340 cmd->bind_content = NULL;
4341 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4342 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
4343 cmd->weak_bind_content = NULL;
4344 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4345 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
4346 cmd->lazy_bind_content = NULL;
4347 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4348 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
4349 cmd->export_content = NULL;
4354 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4356 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4357 struct mach_o_version_min_command_external raw;
4360 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4361 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4364 ver = bfd_get_32 (abfd, raw.version);
4365 cmd->rel = ver >> 16;
4366 cmd->maj = ver >> 8;
4368 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4373 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4375 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4376 struct mach_o_encryption_info_command_external raw;
4378 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4379 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4382 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4383 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4384 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4389 bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4391 bfd_mach_o_main_command *cmd = &command->command.main;
4392 struct mach_o_entry_point_command_external raw;
4394 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4395 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4398 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4399 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4404 bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4406 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4407 struct mach_o_source_version_command_external raw;
4410 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4411 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4414 ver = bfd_get_64 (abfd, raw.version);
4415 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4416 generates warnings) in case of the host doesn't support 64 bit
4418 cmd->e = ver & 0x3ff;
4420 cmd->d = ver & 0x3ff;
4422 cmd->c = ver & 0x3ff;
4424 cmd->b = ver & 0x3ff;
4426 cmd->a = ver & 0xffffff;
4431 bfd_mach_o_read_segment (bfd *abfd,
4432 bfd_mach_o_load_command *command,
4435 bfd_mach_o_segment_command *seg = &command->command.segment;
4440 struct mach_o_segment_command_64_external raw;
4442 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
4444 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4445 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4448 memcpy (seg->segname, raw.segname, 16);
4449 seg->segname[16] = '\0';
4451 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4452 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4453 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4454 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4455 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4456 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4457 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4458 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4462 struct mach_o_segment_command_32_external raw;
4464 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4466 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4467 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4470 memcpy (seg->segname, raw.segname, 16);
4471 seg->segname[16] = '\0';
4473 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4474 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4475 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4476 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4477 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4478 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4479 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4480 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4482 seg->sect_head = NULL;
4483 seg->sect_tail = NULL;
4485 for (i = 0; i < seg->nsects; i++)
4491 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
4492 + (i * BFD_MACH_O_SECTION_64_SIZE);
4494 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
4495 + (i * BFD_MACH_O_SECTION_SIZE);
4497 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
4501 bfd_mach_o_append_section_to_segment
4502 (seg, bfd_mach_o_get_mach_o_section (sec));
4509 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
4511 return bfd_mach_o_read_segment (abfd, command, 0);
4515 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
4517 return bfd_mach_o_read_segment (abfd, command, 1);
4521 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
4523 struct mach_o_load_command_external raw;
4526 /* Read command type and length. */
4527 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
4528 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
4531 cmd = bfd_h_get_32 (abfd, raw.cmd);
4532 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4533 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4534 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
4536 switch (command->type)
4538 case BFD_MACH_O_LC_SEGMENT:
4539 if (!bfd_mach_o_read_segment_32 (abfd, command))
4542 case BFD_MACH_O_LC_SEGMENT_64:
4543 if (!bfd_mach_o_read_segment_64 (abfd, command))
4546 case BFD_MACH_O_LC_SYMTAB:
4547 if (!bfd_mach_o_read_symtab (abfd, command))
4550 case BFD_MACH_O_LC_SYMSEG:
4552 case BFD_MACH_O_LC_THREAD:
4553 case BFD_MACH_O_LC_UNIXTHREAD:
4554 if (!bfd_mach_o_read_thread (abfd, command))
4557 case BFD_MACH_O_LC_LOAD_DYLINKER:
4558 case BFD_MACH_O_LC_ID_DYLINKER:
4559 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
4560 if (!bfd_mach_o_read_dylinker (abfd, command))
4563 case BFD_MACH_O_LC_LOAD_DYLIB:
4564 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
4565 case BFD_MACH_O_LC_ID_DYLIB:
4566 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
4567 case BFD_MACH_O_LC_REEXPORT_DYLIB:
4568 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
4569 if (!bfd_mach_o_read_dylib (abfd, command))
4572 case BFD_MACH_O_LC_PREBOUND_DYLIB:
4573 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4576 case BFD_MACH_O_LC_LOADFVMLIB:
4577 case BFD_MACH_O_LC_IDFVMLIB:
4578 if (!bfd_mach_o_read_fvmlib (abfd, command))
4581 case BFD_MACH_O_LC_IDENT:
4582 case BFD_MACH_O_LC_FVMFILE:
4583 case BFD_MACH_O_LC_PREPAGE:
4584 case BFD_MACH_O_LC_ROUTINES:
4585 case BFD_MACH_O_LC_ROUTINES_64:
4587 case BFD_MACH_O_LC_SUB_FRAMEWORK:
4588 case BFD_MACH_O_LC_SUB_UMBRELLA:
4589 case BFD_MACH_O_LC_SUB_LIBRARY:
4590 case BFD_MACH_O_LC_SUB_CLIENT:
4591 case BFD_MACH_O_LC_RPATH:
4592 if (!bfd_mach_o_read_str (abfd, command))
4595 case BFD_MACH_O_LC_DYSYMTAB:
4596 if (!bfd_mach_o_read_dysymtab (abfd, command))
4599 case BFD_MACH_O_LC_PREBIND_CKSUM:
4600 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4603 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
4604 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4607 case BFD_MACH_O_LC_UUID:
4608 if (!bfd_mach_o_read_uuid (abfd, command))
4611 case BFD_MACH_O_LC_CODE_SIGNATURE:
4612 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
4613 case BFD_MACH_O_LC_FUNCTION_STARTS:
4614 case BFD_MACH_O_LC_DATA_IN_CODE:
4615 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
4616 if (!bfd_mach_o_read_linkedit (abfd, command))
4619 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4620 if (!bfd_mach_o_read_encryption_info (abfd, command))
4623 case BFD_MACH_O_LC_DYLD_INFO:
4624 if (!bfd_mach_o_read_dyld_info (abfd, command))
4627 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4628 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4629 if (!bfd_mach_o_read_version_min (abfd, command))
4632 case BFD_MACH_O_LC_MAIN:
4633 if (!bfd_mach_o_read_main (abfd, command))
4636 case BFD_MACH_O_LC_SOURCE_VERSION:
4637 if (!bfd_mach_o_read_source_version (abfd, command))
4641 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
4642 abfd, (unsigned long) command->type);
4650 bfd_mach_o_flatten_sections (bfd *abfd)
4652 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4653 bfd_mach_o_load_command *cmd;
4656 /* Count total number of sections. */
4659 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4661 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4662 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4664 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4666 mdata->nsects += seg->nsects;
4670 /* Allocate sections array. */
4671 mdata->sections = bfd_alloc (abfd,
4672 mdata->nsects * sizeof (bfd_mach_o_section *));
4674 /* Fill the array. */
4677 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4679 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4680 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4682 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4683 bfd_mach_o_section *sec;
4685 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4687 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4688 mdata->sections[csect++] = sec;
4694 bfd_mach_o_scan_start_address (bfd *abfd)
4696 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4697 bfd_mach_o_thread_command *thr = NULL;
4698 bfd_mach_o_load_command *cmd;
4701 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4702 if (cmd->type == BFD_MACH_O_LC_THREAD
4703 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
4705 thr = &cmd->command.thread;
4708 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
4710 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
4711 bfd_mach_o_section *text_sect = mdata->sections[0];
4715 abfd->start_address = main_cmd->entryoff
4716 + (text_sect->addr - text_sect->offset);
4721 /* An object file has no start address, so do not fail if not found. */
4725 /* FIXME: create a subtarget hook ? */
4726 for (i = 0; i < thr->nflavours; i++)
4728 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
4729 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
4731 unsigned char buf[4];
4733 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
4734 || bfd_bread (buf, 4, abfd) != 4)
4737 abfd->start_address = bfd_h_get_32 (abfd, buf);
4739 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
4740 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
4742 unsigned char buf[4];
4744 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4745 || bfd_bread (buf, 4, abfd) != 4)
4748 abfd->start_address = bfd_h_get_32 (abfd, buf);
4750 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
4751 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
4753 unsigned char buf[8];
4755 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4756 || bfd_bread (buf, 8, abfd) != 8)
4759 abfd->start_address = bfd_h_get_64 (abfd, buf);
4761 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
4762 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
4764 unsigned char buf[8];
4766 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
4767 || bfd_bread (buf, 8, abfd) != 8)
4770 abfd->start_address = bfd_h_get_64 (abfd, buf);
4778 bfd_mach_o_set_arch_mach (bfd *abfd,
4779 enum bfd_architecture arch,
4780 unsigned long machine)
4782 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4784 /* If this isn't the right architecture for this backend, and this
4785 isn't the generic backend, fail. */
4786 if (arch != bed->arch
4787 && arch != bfd_arch_unknown
4788 && bed->arch != bfd_arch_unknown)
4791 return bfd_default_set_arch_mach (abfd, arch, machine);
4795 bfd_mach_o_scan (bfd *abfd,
4796 bfd_mach_o_header *header,
4797 bfd_mach_o_data_struct *mdata)
4800 enum bfd_architecture cputype;
4801 unsigned long cpusubtype;
4802 unsigned int hdrsize;
4804 hdrsize = mach_o_wide_p (header) ?
4805 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
4807 mdata->header = *header;
4809 abfd->flags = abfd->flags & BFD_IN_MEMORY;
4810 switch (header->filetype)
4812 case BFD_MACH_O_MH_OBJECT:
4813 abfd->flags |= HAS_RELOC;
4815 case BFD_MACH_O_MH_EXECUTE:
4816 abfd->flags |= EXEC_P;
4818 case BFD_MACH_O_MH_DYLIB:
4819 case BFD_MACH_O_MH_BUNDLE:
4820 abfd->flags |= DYNAMIC;
4824 abfd->tdata.mach_o_data = mdata;
4826 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4827 &cputype, &cpusubtype);
4828 if (cputype == bfd_arch_unknown)
4830 (*_bfd_error_handler)
4831 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
4832 header->cputype, header->cpusubtype);
4836 bfd_set_arch_mach (abfd, cputype, cpusubtype);
4838 if (header->ncmds != 0)
4840 bfd_mach_o_load_command *cmd;
4842 mdata->first_command = NULL;
4843 mdata->last_command = NULL;
4844 cmd = bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
4848 for (i = 0; i < header->ncmds; i++)
4850 bfd_mach_o_load_command *cur = &cmd[i];
4852 bfd_mach_o_append_command (abfd, cur);
4855 cur->offset = hdrsize;
4858 bfd_mach_o_load_command *prev = &cmd[i - 1];
4859 cur->offset = prev->offset + prev->len;
4862 if (!bfd_mach_o_read_command (abfd, cur))
4867 /* Sections should be flatten before scanning start address. */
4868 bfd_mach_o_flatten_sections (abfd);
4869 if (!bfd_mach_o_scan_start_address (abfd))
4876 bfd_mach_o_mkobject_init (bfd *abfd)
4878 bfd_mach_o_data_struct *mdata = NULL;
4880 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
4883 abfd->tdata.mach_o_data = mdata;
4885 mdata->header.magic = 0;
4886 mdata->header.cputype = 0;
4887 mdata->header.cpusubtype = 0;
4888 mdata->header.filetype = 0;
4889 mdata->header.ncmds = 0;
4890 mdata->header.sizeofcmds = 0;
4891 mdata->header.flags = 0;
4892 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
4893 mdata->first_command = NULL;
4894 mdata->last_command = NULL;
4896 mdata->sections = NULL;
4897 mdata->dyn_reloc_cache = NULL;
4903 bfd_mach_o_gen_mkobject (bfd *abfd)
4905 bfd_mach_o_data_struct *mdata;
4907 if (!bfd_mach_o_mkobject_init (abfd))
4910 mdata = bfd_mach_o_get_data (abfd);
4911 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
4912 mdata->header.cputype = 0;
4913 mdata->header.cpusubtype = 0;
4914 mdata->header.byteorder = abfd->xvec->byteorder;
4915 mdata->header.version = 1;
4921 bfd_mach_o_header_p (bfd *abfd,
4922 bfd_mach_o_filetype filetype,
4923 bfd_mach_o_cpu_type cputype)
4925 bfd_mach_o_header header;
4926 bfd_mach_o_data_struct *mdata;
4928 if (!bfd_mach_o_read_header (abfd, &header))
4931 if (! (header.byteorder == BFD_ENDIAN_BIG
4932 || header.byteorder == BFD_ENDIAN_LITTLE))
4934 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
4935 (unsigned long) header.byteorder);
4939 if (! ((header.byteorder == BFD_ENDIAN_BIG
4940 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
4941 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
4942 || (header.byteorder == BFD_ENDIAN_LITTLE
4943 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
4944 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
4947 /* Check cputype and filetype.
4948 In case of wildcard, do not accept magics that are handled by existing
4952 if (header.cputype != cputype)
4958 /* Do not recognize 64 architectures if not configured for 64bit targets.
4959 This could happen only for generic targets. */
4960 if (mach_o_wide_p (&header))
4967 if (header.filetype != filetype)
4972 switch (header.filetype)
4974 case BFD_MACH_O_MH_CORE:
4975 /* Handled by core_p */
4982 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
4986 if (!bfd_mach_o_scan (abfd, &header, mdata))
4992 bfd_set_error (bfd_error_wrong_format);
4998 static const bfd_target *
4999 bfd_mach_o_gen_object_p (bfd *abfd)
5001 return bfd_mach_o_header_p (abfd, 0, 0);
5004 static const bfd_target *
5005 bfd_mach_o_gen_core_p (bfd *abfd)
5007 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
5010 /* Return the base address of ABFD, ie the address at which the image is
5011 mapped. The possible initial pagezero is ignored. */
5014 bfd_mach_o_get_base_address (bfd *abfd)
5016 bfd_mach_o_data_struct *mdata;
5017 bfd_mach_o_load_command *cmd;
5019 /* Check for Mach-O. */
5020 if (!bfd_mach_o_valid (abfd))
5022 mdata = bfd_mach_o_get_data (abfd);
5024 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5026 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5027 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5029 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5031 if (segcmd->initprot != 0)
5032 return segcmd->vmaddr;
5038 typedef struct mach_o_fat_archentry
5040 unsigned long cputype;
5041 unsigned long cpusubtype;
5042 unsigned long offset;
5044 unsigned long align;
5045 } mach_o_fat_archentry;
5047 typedef struct mach_o_fat_data_struct
5049 unsigned long magic;
5050 unsigned long nfat_arch;
5051 mach_o_fat_archentry *archentries;
5052 } mach_o_fat_data_struct;
5055 bfd_mach_o_archive_p (bfd *abfd)
5057 mach_o_fat_data_struct *adata = NULL;
5058 struct mach_o_fat_header_external hdr;
5061 if (bfd_seek (abfd, 0, SEEK_SET) != 0
5062 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
5065 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
5069 adata->magic = bfd_getb32 (hdr.magic);
5070 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
5071 if (adata->magic != 0xcafebabe)
5073 /* Avoid matching Java bytecode files, which have the same magic number.
5074 In the Java bytecode file format this field contains the JVM version,
5075 which starts at 43.0. */
5076 if (adata->nfat_arch > 30)
5079 adata->archentries =
5080 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
5081 if (adata->archentries == NULL)
5084 for (i = 0; i < adata->nfat_arch; i++)
5086 struct mach_o_fat_arch_external arch;
5087 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
5089 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5090 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5091 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5092 adata->archentries[i].size = bfd_getb32 (arch.size);
5093 adata->archentries[i].align = bfd_getb32 (arch.align);
5096 abfd->tdata.mach_o_fat_data = adata;
5101 bfd_release (abfd, adata);
5102 bfd_set_error (bfd_error_wrong_format);
5106 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5107 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5108 Set arelt_data and origin fields too. */
5111 bfd_mach_o_fat_member_init (bfd *abfd,
5112 enum bfd_architecture arch_type,
5113 unsigned long arch_subtype,
5114 mach_o_fat_archentry *entry)
5116 struct areltdata *areltdata;
5117 /* Create the member filename. Use ARCH_NAME. */
5118 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5122 /* Use the architecture name if known. */
5123 abfd->filename = xstrdup (ap->printable_name);
5127 /* Forge a uniq id. */
5128 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
5129 char *name = xmalloc (namelen);
5130 snprintf (name, namelen, "0x%lx-0x%lx",
5131 entry->cputype, entry->cpusubtype);
5132 abfd->filename = name;
5135 areltdata = bfd_zmalloc (sizeof (struct areltdata));
5136 areltdata->parsed_size = entry->size;
5137 abfd->arelt_data = areltdata;
5138 abfd->iostream = NULL;
5139 abfd->origin = entry->offset;
5143 bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
5145 mach_o_fat_data_struct *adata;
5146 mach_o_fat_archentry *entry = NULL;
5149 enum bfd_architecture arch_type;
5150 unsigned long arch_subtype;
5152 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
5153 BFD_ASSERT (adata != NULL);
5155 /* Find index of previous entry. */
5158 /* Start at first one. */
5163 /* Find index of PREV. */
5164 for (i = 0; i < adata->nfat_arch; i++)
5166 if (adata->archentries[i].offset == prev->origin)
5170 if (i == adata->nfat_arch)
5173 bfd_set_error (bfd_error_bad_value);
5177 /* Get next entry. */
5181 if (i >= adata->nfat_arch)
5183 bfd_set_error (bfd_error_no_more_archived_files);
5187 entry = &adata->archentries[i];
5188 nbfd = _bfd_new_bfd_contained_in (archive);
5192 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5193 &arch_type, &arch_subtype);
5195 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5197 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
5202 /* Analogous to stat call. */
5205 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5207 if (abfd->arelt_data == NULL)
5209 bfd_set_error (bfd_error_invalid_operation);
5216 buf->st_mode = 0644;
5217 buf->st_size = arelt_size (abfd);
5222 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5223 If ABFD is a fat image containing a member that corresponds to FORMAT
5224 and ARCH, returns it.
5225 In other case, returns NULL.
5226 This function allows transparent uses of fat images. */
5229 bfd_mach_o_fat_extract (bfd *abfd,
5231 const bfd_arch_info_type *arch)
5234 mach_o_fat_data_struct *adata;
5237 if (bfd_check_format (abfd, format))
5239 if (bfd_get_arch_info (abfd) == arch)
5243 if (!bfd_check_format (abfd, bfd_archive)
5244 || abfd->xvec != &mach_o_fat_vec)
5247 /* This is a Mach-O fat image. */
5248 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5249 BFD_ASSERT (adata != NULL);
5251 for (i = 0; i < adata->nfat_arch; i++)
5253 struct mach_o_fat_archentry *e = &adata->archentries[i];
5254 enum bfd_architecture cpu_type;
5255 unsigned long cpu_subtype;
5257 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5258 &cpu_type, &cpu_subtype);
5259 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5262 /* The architecture is found. */
5263 res = _bfd_new_bfd_contained_in (abfd);
5267 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
5269 if (bfd_check_format (res, format))
5271 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5282 bfd_mach_o_lookup_command (bfd *abfd,
5283 bfd_mach_o_load_command_type type,
5284 bfd_mach_o_load_command **mcommand)
5286 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5287 struct bfd_mach_o_load_command *cmd;
5290 BFD_ASSERT (mdata != NULL);
5291 BFD_ASSERT (mcommand != NULL);
5294 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5296 if (cmd->type != type)
5308 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
5312 case BFD_MACH_O_CPU_TYPE_MC680x0:
5314 case BFD_MACH_O_CPU_TYPE_MC88000:
5316 case BFD_MACH_O_CPU_TYPE_POWERPC:
5318 case BFD_MACH_O_CPU_TYPE_I386:
5320 case BFD_MACH_O_CPU_TYPE_SPARC:
5322 case BFD_MACH_O_CPU_TYPE_I860:
5324 case BFD_MACH_O_CPU_TYPE_HPPA:
5325 return 0xc0000000 - 0x04000000;
5331 /* The following two tables should be kept, as far as possible, in order of
5332 most frequently used entries to optimize their use from gas. */
5334 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
5336 { "regular", BFD_MACH_O_S_REGULAR},
5337 { "coalesced", BFD_MACH_O_S_COALESCED},
5338 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5339 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5340 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5341 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
5342 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
5343 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
5344 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5345 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
5346 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5347 { "interposing", BFD_MACH_O_S_INTERPOSING},
5348 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
5349 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5350 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
5351 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
5352 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5356 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
5358 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5359 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
5360 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5361 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
5362 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
5363 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5364 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5365 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5366 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
5367 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5368 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5372 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5375 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
5377 const bfd_mach_o_xlat_name *x;
5378 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5380 for (x = bfd_mach_o_section_type_name; x->name; x++)
5381 if (strcmp (x->name, name) == 0)
5383 /* We found it... does the target support it? */
5384 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5385 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5386 return x->val; /* OK. */
5388 break; /* Not supported. */
5390 /* Maximum section ID = 0xff. */
5394 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5397 bfd_mach_o_get_section_attribute_from_name (const char *name)
5399 const bfd_mach_o_xlat_name *x;
5401 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5402 if (strcmp (x->name, name) == 0)
5404 return (unsigned int)-1;
5408 bfd_mach_o_core_fetch_environment (bfd *abfd,
5409 unsigned char **rbuf,
5412 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5413 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
5414 bfd_mach_o_load_command *cmd;
5416 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5418 bfd_mach_o_segment_command *seg;
5420 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
5423 seg = &cmd->command.segment;
5425 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5427 unsigned long start = seg->fileoff;
5428 unsigned long end = seg->fileoff + seg->filesize;
5429 unsigned char *buf = bfd_malloc (1024);
5430 unsigned long size = 1024;
5434 bfd_size_type nread = 0;
5435 unsigned long offset;
5436 int found_nonnull = 0;
5438 if (size > (end - start))
5439 size = (end - start);
5441 buf = bfd_realloc_or_free (buf, size);
5445 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5451 nread = bfd_bread (buf, size, abfd);
5459 for (offset = 4; offset <= size; offset += 4)
5463 val = *((unsigned long *) (buf + size - offset));
5464 if (! found_nonnull)
5469 else if (val == 0x0)
5471 unsigned long bottom;
5474 bottom = seg->fileoff + seg->filesize - offset;
5475 top = seg->fileoff + seg->filesize - 4;
5476 *rbuf = bfd_malloc (top - bottom);
5477 *rlen = top - bottom;
5479 memcpy (*rbuf, buf + size - *rlen, *rlen);
5485 if (size == (end - start))
5499 bfd_mach_o_core_file_failing_command (bfd *abfd)
5501 unsigned char *buf = NULL;
5502 unsigned int len = 0;
5505 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5509 return (char *) buf;
5513 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
5518 static bfd_mach_o_uuid_command *
5519 bfd_mach_o_lookup_uuid_command (bfd *abfd)
5521 bfd_mach_o_load_command *uuid_cmd;
5522 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5525 return &uuid_cmd->command.uuid;
5528 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5531 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5533 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5536 BFD_ASSERT (uuid_cmd);
5538 if (!bfd_check_format (abfd, bfd_object))
5541 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5542 || bfd_mach_o_get_data (abfd) == NULL
5543 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5546 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5547 if (dsym_uuid_cmd == NULL)
5550 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5551 sizeof (uuid_cmd->uuid)) != 0)
5557 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5558 The caller is responsible for closing the returned BFD object and
5559 its my_archive if the returned BFD is in a fat dSYM. */
5562 bfd_mach_o_find_dsym (const char *dsym_filename,
5563 const bfd_mach_o_uuid_command *uuid_cmd,
5564 const bfd_arch_info_type *arch)
5566 bfd *base_dsym_bfd, *dsym_bfd;
5568 BFD_ASSERT (uuid_cmd);
5570 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5571 if (base_dsym_bfd == NULL)
5574 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5575 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5578 bfd_close (dsym_bfd);
5579 if (base_dsym_bfd != dsym_bfd)
5580 bfd_close (base_dsym_bfd);
5585 /* Return a BFD created from a dSYM file for ABFD.
5586 The caller is responsible for closing the returned BFD object, its
5587 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5590 bfd_mach_o_follow_dsym (bfd *abfd)
5592 char *dsym_filename;
5593 bfd_mach_o_uuid_command *uuid_cmd;
5594 bfd *dsym_bfd, *base_bfd = abfd;
5595 const char *base_basename;
5597 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5600 if (abfd->my_archive)
5601 base_bfd = abfd->my_archive;
5602 /* BFD may have been opened from a stream. */
5603 if (base_bfd->filename == NULL)
5605 bfd_set_error (bfd_error_invalid_operation);
5608 base_basename = lbasename (base_bfd->filename);
5610 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5611 if (uuid_cmd == NULL)
5614 /* TODO: We assume the DWARF file has the same as the binary's.
5615 It seems apple's GDB checks all files in the dSYM bundle directory.
5616 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5618 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5619 + strlen (dsym_subdir) + 1
5620 + strlen (base_basename) + 1);
5621 sprintf (dsym_filename, "%s%s/%s",
5622 base_bfd->filename, dsym_subdir, base_basename);
5624 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5625 bfd_get_arch_info (abfd));
5626 if (dsym_bfd == NULL)
5627 free (dsym_filename);
5633 bfd_mach_o_find_nearest_line (bfd *abfd,
5637 const char **filename_ptr,
5638 const char **functionname_ptr,
5639 unsigned int *line_ptr,
5640 unsigned int *discriminator_ptr)
5642 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5645 switch (mdata->header.filetype)
5647 case BFD_MACH_O_MH_OBJECT:
5649 case BFD_MACH_O_MH_EXECUTE:
5650 case BFD_MACH_O_MH_DYLIB:
5651 case BFD_MACH_O_MH_BUNDLE:
5652 case BFD_MACH_O_MH_KEXT_BUNDLE:
5653 if (mdata->dwarf2_find_line_info == NULL)
5655 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5656 /* When we couldn't find dSYM for this binary, we look for
5657 the debug information in the binary itself. In this way,
5658 we won't try finding separated dSYM again because
5659 mdata->dwarf2_find_line_info will be filled. */
5660 if (! mdata->dsym_bfd)
5662 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5663 dwarf_debug_sections, symbols,
5664 &mdata->dwarf2_find_line_info,
5672 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5673 filename_ptr, functionname_ptr,
5674 line_ptr, discriminator_ptr,
5675 dwarf_debug_sections, 0,
5676 &mdata->dwarf2_find_line_info);
5680 bfd_mach_o_close_and_cleanup (bfd *abfd)
5682 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5683 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
5685 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5686 bfd_mach_o_free_cached_info (abfd);
5687 if (mdata->dsym_bfd != NULL)
5689 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5690 char *dsym_filename = (char *)(fat_bfd
5692 : mdata->dsym_bfd->filename);
5693 bfd_close (mdata->dsym_bfd);
5694 mdata->dsym_bfd = NULL;
5696 bfd_close (fat_bfd);
5697 free (dsym_filename);
5701 if (bfd_get_format (abfd) == bfd_archive
5702 && abfd->xvec == &mach_o_fat_vec)
5704 return _bfd_generic_close_and_cleanup (abfd);
5707 bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
5709 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5711 free (mdata->dyn_reloc_cache);
5712 mdata->dyn_reloc_cache = NULL;
5713 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5715 free (asect->relocation);
5716 asect->relocation = NULL;
5722 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5723 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5725 #define bfd_mach_o_swap_reloc_in NULL
5726 #define bfd_mach_o_swap_reloc_out NULL
5727 #define bfd_mach_o_print_thread NULL
5728 #define bfd_mach_o_tgt_seg_table NULL
5729 #define bfd_mach_o_section_type_valid_for_tgt NULL
5731 #define TARGET_NAME mach_o_be_vec
5732 #define TARGET_STRING "mach-o-be"
5733 #define TARGET_ARCHITECTURE bfd_arch_unknown
5734 #define TARGET_PAGESIZE 1
5735 #define TARGET_BIG_ENDIAN 1
5736 #define TARGET_ARCHIVE 0
5737 #define TARGET_PRIORITY 1
5738 #include "mach-o-target.c"
5741 #undef TARGET_STRING
5742 #undef TARGET_ARCHITECTURE
5743 #undef TARGET_PAGESIZE
5744 #undef TARGET_BIG_ENDIAN
5745 #undef TARGET_ARCHIVE
5746 #undef TARGET_PRIORITY
5748 #define TARGET_NAME mach_o_le_vec
5749 #define TARGET_STRING "mach-o-le"
5750 #define TARGET_ARCHITECTURE bfd_arch_unknown
5751 #define TARGET_PAGESIZE 1
5752 #define TARGET_BIG_ENDIAN 0
5753 #define TARGET_ARCHIVE 0
5754 #define TARGET_PRIORITY 1
5756 #include "mach-o-target.c"
5759 #undef TARGET_STRING
5760 #undef TARGET_ARCHITECTURE
5761 #undef TARGET_PAGESIZE
5762 #undef TARGET_BIG_ENDIAN
5763 #undef TARGET_ARCHIVE
5764 #undef TARGET_PRIORITY
5766 /* Not yet handled: creating an archive. */
5767 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
5770 #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
5771 #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
5772 #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
5773 #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
5774 #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
5775 #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
5776 #define bfd_mach_o_write_armap _bfd_noarchive_write_armap
5777 #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
5778 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
5779 #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
5781 #define TARGET_NAME mach_o_fat_vec
5782 #define TARGET_STRING "mach-o-fat"
5783 #define TARGET_ARCHITECTURE bfd_arch_unknown
5784 #define TARGET_PAGESIZE 1
5785 #define TARGET_BIG_ENDIAN 1
5786 #define TARGET_ARCHIVE 1
5787 #define TARGET_PRIORITY 0
5789 #include "mach-o-target.c"
5792 #undef TARGET_STRING
5793 #undef TARGET_ARCHITECTURE
5794 #undef TARGET_PAGESIZE
5795 #undef TARGET_BIG_ENDIAN
5796 #undef TARGET_ARCHIVE
5797 #undef TARGET_PRIORITY