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 /* PR 17512: file: 8396-1185-0.004. */
1353 if (bfd_get_symcount (abfd) > 0 && num > bfd_get_symcount (abfd))
1354 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1355 else if (syms == NULL)
1356 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1358 /* An external symbol number. */
1361 else if (num == 0x00ffffff || num == 0)
1363 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1364 is generic code, we don't know wether this is really a PAIR.
1365 This value is almost certainly not a valid section number, hence
1366 this specific case to avoid an assertion failure.
1367 Target specific swap_reloc_in routine should adjust that. */
1368 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1372 /* PR 17512: file: 006-2964-0.004. */
1373 if (num > mdata->nsects)
1376 /* A section number. */
1377 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1378 /* For a symbol defined in section S, the addend (stored in the
1379 binary) contains the address of the section. To comply with
1380 bfd convention, subtract the section address.
1381 Use the address from the header, so that the user can modify
1382 the vma of the section. */
1383 res->addend = -mdata->sections[num - 1]->addr;
1385 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1386 in the lower 16bits of the address value. So we have to find the
1387 'symbol' from the preceding reloc. We do this even though the
1388 section symbol is probably not needed here, because NULL symbol
1389 values cause an assert in generic BFD code. This must be done in
1390 the PPC swap_reloc_in routine. */
1391 res->sym_ptr_ptr = sym;
1393 /* The 'address' is just r_address.
1394 ??? maybe this should be masked with 0xffffff for safety. */
1395 res->address = addr;
1396 reloc.r_address = addr;
1399 /* We have set up a reloc with all the information present, so the swapper
1400 can modify address, value and addend fields, if necessary, to convey
1401 information in the generic BFD reloc that is mach-o specific. */
1403 if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc))
1410 bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1411 unsigned long count,
1412 arelent *res, asymbol **syms)
1415 struct mach_o_reloc_info_external *native_relocs;
1416 bfd_size_type native_size;
1418 /* Allocate and read relocs. */
1419 native_size = count * BFD_MACH_O_RELENT_SIZE;
1422 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
1423 if (native_relocs == NULL)
1426 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
1427 || bfd_bread (native_relocs, native_size, abfd) != native_size)
1430 for (i = 0; i < count; i++)
1432 if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i],
1436 free (native_relocs);
1439 free (native_relocs);
1444 bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1445 arelent **rels, asymbol **syms)
1447 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1451 if (asect->reloc_count == 0)
1454 /* No need to go further if we don't know how to read relocs. */
1455 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1458 if (asect->relocation == NULL)
1460 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1464 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1465 asect->reloc_count, res, syms) < 0)
1470 asect->relocation = res;
1473 res = asect->relocation;
1474 for (i = 0; i < asect->reloc_count; i++)
1482 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1484 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1486 if (mdata->dysymtab == NULL)
1488 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
1489 * sizeof (arelent *);
1493 bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1494 struct bfd_symbol **syms)
1496 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1497 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1498 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1502 if (dysymtab == NULL)
1504 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1507 /* No need to go further if we don't know how to read relocs. */
1508 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1511 if (mdata->dyn_reloc_cache == NULL)
1513 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1514 * sizeof (arelent));
1518 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1519 dysymtab->nextrel, res, syms) < 0)
1525 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1527 res + dysymtab->nextrel, syms) < 0)
1533 mdata->dyn_reloc_cache = res;
1536 res = mdata->dyn_reloc_cache;
1537 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1543 /* In addition to the need to byte-swap the symbol number, the bit positions
1544 of the fields in the relocation information vary per target endian-ness. */
1547 bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
1548 bfd_mach_o_reloc_info *rel)
1550 unsigned char info = 0;
1552 BFD_ASSERT (rel->r_type <= 15);
1553 BFD_ASSERT (rel->r_length <= 3);
1555 if (bfd_big_endian (abfd))
1557 fields[0] = (rel->r_value >> 16) & 0xff;
1558 fields[1] = (rel->r_value >> 8) & 0xff;
1559 fields[2] = rel->r_value & 0xff;
1560 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1561 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1562 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1563 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1567 fields[2] = (rel->r_value >> 16) & 0xff;
1568 fields[1] = (rel->r_value >> 8) & 0xff;
1569 fields[0] = rel->r_value & 0xff;
1570 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1571 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1572 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1573 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1579 bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
1584 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1586 sec = section->bfdsection;
1587 if (sec->reloc_count == 0)
1590 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1593 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1596 /* Convert and write. */
1597 entries = section->bfdsection->orelocation;
1598 for (i = 0; i < section->nreloc; i++)
1600 arelent *rel = entries[i];
1601 struct mach_o_reloc_info_external raw;
1602 bfd_mach_o_reloc_info info, *pinfo = &info;
1604 /* Convert relocation to an intermediate representation. */
1605 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1608 /* Lower the relocation info. */
1609 if (pinfo->r_scattered)
1613 v = BFD_MACH_O_SR_SCATTERED
1614 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1615 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1616 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1617 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
1618 /* Note: scattered relocs have field in reverse order... */
1619 bfd_put_32 (abfd, v, raw.r_address);
1620 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1624 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1625 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
1629 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
1630 != BFD_MACH_O_RELENT_SIZE)
1637 bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
1639 struct mach_o_section_32_external raw;
1641 memcpy (raw.sectname, section->sectname, 16);
1642 memcpy (raw.segname, section->segname, 16);
1643 bfd_h_put_32 (abfd, section->addr, raw.addr);
1644 bfd_h_put_32 (abfd, section->size, raw.size);
1645 bfd_h_put_32 (abfd, section->offset, raw.offset);
1646 bfd_h_put_32 (abfd, section->align, raw.align);
1647 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1648 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1649 bfd_h_put_32 (abfd, section->flags, raw.flags);
1650 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1651 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1653 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
1654 != BFD_MACH_O_SECTION_SIZE)
1661 bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
1663 struct mach_o_section_64_external raw;
1665 memcpy (raw.sectname, section->sectname, 16);
1666 memcpy (raw.segname, section->segname, 16);
1667 bfd_h_put_64 (abfd, section->addr, raw.addr);
1668 bfd_h_put_64 (abfd, section->size, raw.size);
1669 bfd_h_put_32 (abfd, section->offset, raw.offset);
1670 bfd_h_put_32 (abfd, section->align, raw.align);
1671 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1672 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1673 bfd_h_put_32 (abfd, section->flags, raw.flags);
1674 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1675 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1676 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1678 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
1679 != BFD_MACH_O_SECTION_64_SIZE)
1686 bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1688 struct mach_o_segment_command_32_external raw;
1689 bfd_mach_o_segment_command *seg = &command->command.segment;
1690 bfd_mach_o_section *sec;
1692 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1694 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1695 if (!bfd_mach_o_write_relocs (abfd, sec))
1698 memcpy (raw.segname, seg->segname, 16);
1699 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1700 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1701 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1702 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1703 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1704 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1705 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1706 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1708 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1709 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1712 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1713 if (!bfd_mach_o_write_section_32 (abfd, sec))
1720 bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1722 struct mach_o_segment_command_64_external raw;
1723 bfd_mach_o_segment_command *seg = &command->command.segment;
1724 bfd_mach_o_section *sec;
1726 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1728 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1729 if (!bfd_mach_o_write_relocs (abfd, sec))
1732 memcpy (raw.segname, seg->segname, 16);
1733 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1734 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1735 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1736 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1737 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1738 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1739 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1740 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1742 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1743 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1746 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1747 if (!bfd_mach_o_write_section_64 (abfd, sec))
1754 bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
1756 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1758 unsigned int wide = bfd_mach_o_wide_p (abfd);
1759 struct bfd_strtab_hash *strtab;
1760 asymbol **symbols = bfd_get_outsymbols (abfd);
1763 /* Write the symbols first. */
1764 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1767 strtab = _bfd_stringtab_init ();
1772 /* Although we don't strictly need to do this, for compatibility with
1773 Darwin system tools, actually output an empty string for the index
1775 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1777 for (i = 0; i < sym->nsyms; i++)
1779 bfd_size_type str_index;
1780 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1782 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
1783 /* An index of 0 always means the empty string. */
1787 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
1789 if (str_index == (bfd_size_type) -1)
1795 struct mach_o_nlist_64_external raw;
1797 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1798 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1799 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1800 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1801 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1804 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1809 struct mach_o_nlist_external raw;
1811 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1812 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1813 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1814 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1815 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1818 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1822 sym->strsize = _bfd_stringtab_size (strtab);
1823 sym->stroff = mdata->filelen;
1824 mdata->filelen += sym->strsize;
1826 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
1829 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
1831 _bfd_stringtab_free (strtab);
1833 /* Pad string table. */
1834 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
1837 mdata->filelen += padlen;
1838 sym->strsize += padlen;
1843 _bfd_stringtab_free (strtab);
1848 bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1850 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1851 struct mach_o_symtab_command_external raw;
1853 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1856 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1857 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1858 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1859 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1861 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1862 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1868 /* Count the number of indirect symbols in the image.
1869 Requires that the sections are in their final order. */
1872 bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
1875 unsigned int nisyms = 0;
1877 for (i = 0; i < mdata->nsects; ++i)
1879 bfd_mach_o_section *sec = mdata->sections[i];
1881 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1883 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1884 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1885 case BFD_MACH_O_S_SYMBOL_STUBS:
1886 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1895 /* Create the dysymtab. */
1898 bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
1900 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1903 We are not going to try and fill these in yet and, moreover, we are
1904 going to bail if they are already set. */
1905 if (cmd->nmodtab != 0
1907 || cmd->nextrefsyms != 0)
1909 (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet"
1910 " implemented for dysymtab commands."));
1916 if (bfd_get_symcount (abfd) > 0)
1918 asymbol **symbols = bfd_get_outsymbols (abfd);
1921 /* Count the number of each kind of symbol. */
1922 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1924 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1925 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
1929 cmd->iextdefsym = i;
1930 for (; i < bfd_get_symcount (abfd); ++i)
1932 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1933 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
1936 cmd->nextdefsym = i - cmd->nlocalsym;
1937 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
1938 cmd->nundefsym = bfd_get_symcount (abfd)
1945 cmd->iextdefsym = 0;
1946 cmd->nextdefsym = 0;
1951 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
1952 if (cmd->nindirectsyms > 0)
1957 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
1958 cmd->indirectsymoff = mdata->filelen;
1959 mdata->filelen += cmd->nindirectsyms * 4;
1961 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
1962 if (cmd->indirect_syms == NULL)
1966 for (i = 0; i < mdata->nsects; ++i)
1968 bfd_mach_o_section *sec = mdata->sections[i];
1970 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1972 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1973 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1974 case BFD_MACH_O_S_SYMBOL_STUBS:
1977 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
1979 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1980 if (isyms == NULL || num == 0)
1982 /* Record the starting index in the reserved1 field. */
1984 for (j = 0; j < num; j++, n++)
1986 if (isyms[j] == NULL)
1987 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
1988 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
1989 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
1990 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
1991 | BFD_MACH_O_INDIRECT_SYM_ABS;
1993 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
2006 /* Write a dysymtab command.
2007 TODO: Possibly coalesce writes of smaller objects. */
2010 bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2012 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2014 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2016 if (cmd->nmodtab != 0)
2020 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2023 for (i = 0; i < cmd->nmodtab; i++)
2025 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2029 iinit = module->iinit & 0xffff;
2030 iinit |= ((module->iterm & 0xffff) << 16);
2032 ninit = module->ninit & 0xffff;
2033 ninit |= ((module->nterm & 0xffff) << 16);
2035 if (bfd_mach_o_wide_p (abfd))
2037 struct mach_o_dylib_module_64_external w;
2039 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2040 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2041 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2042 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2043 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2044 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2045 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2046 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2047 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2048 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2049 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2050 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2051 &w.objc_module_info_addr);
2052 bfd_h_put_32 (abfd, module->objc_module_info_size,
2053 &w.objc_module_info_size);
2055 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2060 struct mach_o_dylib_module_external n;
2062 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2063 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2064 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2065 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2066 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2067 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2068 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2069 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2070 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2071 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2072 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2073 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2074 &n.objc_module_info_addr);
2075 bfd_h_put_32 (abfd, module->objc_module_info_size,
2076 &n.objc_module_info_size);
2078 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2088 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2091 for (i = 0; i < cmd->ntoc; i++)
2093 struct mach_o_dylib_table_of_contents_external raw;
2094 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2096 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2097 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2099 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2104 if (cmd->nindirectsyms > 0)
2108 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2111 for (i = 0; i < cmd->nindirectsyms; ++i)
2113 unsigned char raw[4];
2115 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2116 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2121 if (cmd->nextrefsyms != 0)
2125 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2128 for (i = 0; i < cmd->nextrefsyms; i++)
2131 unsigned char raw[4];
2132 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2134 /* Fields isym and flags are written as bit-fields, thus we need
2135 a specific processing for endianness. */
2137 if (bfd_big_endian (abfd))
2139 v = ((ref->isym & 0xffffff) << 8);
2140 v |= ref->flags & 0xff;
2144 v = ref->isym & 0xffffff;
2145 v |= ((ref->flags & 0xff) << 24);
2148 bfd_h_put_32 (abfd, v, raw);
2149 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2155 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2159 struct mach_o_dysymtab_command_external raw;
2161 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2162 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2163 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2164 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2165 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2166 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2167 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2168 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2169 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2170 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2171 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2172 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2173 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2174 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2175 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2176 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2177 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2178 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2180 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2188 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
2190 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
2192 /* Just leave debug symbols where they are (pretend they are local, and
2193 then they will just be sorted on position). */
2194 if (s->n_type & BFD_MACH_O_N_STAB)
2197 /* Local (we should never see an undefined local AFAICT). */
2198 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
2201 /* Common symbols look like undefined externs. */
2202 if (mtyp == BFD_MACH_O_N_UNDF)
2205 /* A defined non-local, non-debug symbol. */
2210 bfd_mach_o_cf_symbols (const void *a, const void *b)
2212 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2213 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2214 unsigned int soa, sob;
2216 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2217 sob = bfd_mach_o_primary_symbol_sort_key (sb);
2224 /* If it's local or stab, just preserve the input order. */
2227 if (sa->symbol.udata.i < sb->symbol.udata.i)
2229 if (sa->symbol.udata.i > sb->symbol.udata.i)
2232 /* This is probably an error. */
2236 /* The second sort key is name. */
2237 return strcmp (sa->symbol.name, sb->symbol.name);
2240 /* Process the symbols.
2242 This should be OK for single-module files - but it is not likely to work
2243 for multi-module shared libraries.
2245 (a) If the application has not filled in the relevant mach-o fields, make
2248 (b) Order them, like this:
2251 ( ii) external defined
2253 (iii) external undefined/common
2260 bfd_mach_o_mangle_symbols (bfd *abfd)
2263 asymbol **symbols = bfd_get_outsymbols (abfd);
2265 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2268 for (i = 0; i < bfd_get_symcount (abfd); i++)
2270 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2272 /* We use this value, which is out-of-range as a symbol index, to signal
2273 that the mach-o-specific data are not filled in and need to be created
2274 from the bfd values. It is much preferable for the application to do
2275 this, since more meaningful diagnostics can be made that way. */
2277 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
2279 /* No symbol information has been set - therefore determine
2280 it from the bfd symbol flags/info. */
2281 if (s->symbol.section == bfd_abs_section_ptr)
2282 s->n_type = BFD_MACH_O_N_ABS;
2283 else if (s->symbol.section == bfd_und_section_ptr)
2285 s->n_type = BFD_MACH_O_N_UNDF;
2286 if (s->symbol.flags & BSF_WEAK)
2287 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
2288 /* mach-o automatically makes undefined symbols extern. */
2289 s->n_type |= BFD_MACH_O_N_EXT;
2290 s->symbol.flags |= BSF_GLOBAL;
2292 else if (s->symbol.section == bfd_com_section_ptr)
2294 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2295 s->symbol.flags |= BSF_GLOBAL;
2298 s->n_type = BFD_MACH_O_N_SECT;
2300 if (s->symbol.flags & BSF_GLOBAL)
2301 s->n_type |= BFD_MACH_O_N_EXT;
2304 /* Put the section index in, where required. */
2305 if ((s->symbol.section != bfd_abs_section_ptr
2306 && s->symbol.section != bfd_und_section_ptr
2307 && s->symbol.section != bfd_com_section_ptr)
2308 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2309 && s->symbol.name == NULL))
2310 s->n_sect = s->symbol.section->output_section->target_index;
2312 /* Number to preserve order for local and debug syms. */
2313 s->symbol.udata.i = i;
2316 /* Sort the symbols. */
2317 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2318 sizeof (asymbol *), bfd_mach_o_cf_symbols);
2320 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2322 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2323 s->symbol.udata.i = i; /* renumber. */
2329 /* We build a flat table of sections, which can be re-ordered if necessary.
2330 Fill in the section number and other mach-o-specific data. */
2333 bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2336 unsigned target_index;
2339 nsect = bfd_count_sections (abfd);
2341 /* Don't do it if it's already set - assume the application knows what it's
2343 if (mdata->nsects == nsect
2344 && (mdata->nsects == 0 || mdata->sections != NULL))
2347 /* We need to check that this can be done... */
2350 (*_bfd_error_handler) (_("mach-o: there are too many sections (%u)"
2351 " maximum is 255,\n"), nsect);
2355 mdata->nsects = nsect;
2356 mdata->sections = bfd_alloc (abfd,
2357 mdata->nsects * sizeof (bfd_mach_o_section *));
2358 if (mdata->sections == NULL)
2361 /* Create Mach-O sections.
2362 Section type, attribute and align should have been set when the
2363 section was created - either read in or specified. */
2365 for (sec = abfd->sections; sec; sec = sec->next)
2367 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2368 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2370 mdata->sections[target_index] = msect;
2372 msect->addr = bfd_get_section_vma (abfd, sec);
2373 msect->size = bfd_get_section_size (sec);
2375 /* Use the largest alignment set, in case it was bumped after the
2376 section was created. */
2377 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2380 sec->target_index = ++target_index;
2387 bfd_mach_o_write_contents (bfd *abfd)
2389 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2390 bfd_mach_o_load_command *cmd;
2391 bfd_mach_o_symtab_command *symtab = NULL;
2392 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2393 bfd_mach_o_segment_command *linkedit = NULL;
2395 /* Make the commands, if not already present. */
2396 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2398 abfd->output_has_begun = TRUE;
2400 /* Write the header. */
2401 if (!bfd_mach_o_write_header (abfd, &mdata->header))
2404 /* First pass: allocate the linkedit segment. */
2405 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2408 case BFD_MACH_O_LC_SEGMENT_64:
2409 case BFD_MACH_O_LC_SEGMENT:
2410 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2411 linkedit = &cmd->command.segment;
2413 case BFD_MACH_O_LC_SYMTAB:
2414 symtab = &cmd->command.symtab;
2416 case BFD_MACH_O_LC_DYSYMTAB:
2417 dysymtab = &cmd->command.dysymtab;
2419 case BFD_MACH_O_LC_DYLD_INFO:
2421 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2423 if (di->rebase_size != 0)
2425 di->rebase_off = mdata->filelen;
2426 mdata->filelen += di->rebase_size;
2428 if (di->bind_size != 0)
2430 di->bind_off = mdata->filelen;
2431 mdata->filelen += di->bind_size;
2433 if (di->weak_bind_size != 0)
2435 di->weak_bind_off = mdata->filelen;
2436 mdata->filelen += di->weak_bind_size;
2438 if (di->lazy_bind_size != 0)
2440 di->lazy_bind_off = mdata->filelen;
2441 mdata->filelen += di->lazy_bind_size;
2443 if (di->export_size != 0)
2445 di->export_off = mdata->filelen;
2446 mdata->filelen += di->export_size;
2450 case BFD_MACH_O_LC_LOAD_DYLIB:
2451 case BFD_MACH_O_LC_LOAD_DYLINKER:
2452 case BFD_MACH_O_LC_MAIN:
2453 /* Nothing to do. */
2456 (*_bfd_error_handler)
2457 (_("unable to allocate data for load command 0x%lx"),
2458 (unsigned long) cmd->type);
2462 /* Specially handle symtab and dysymtab. */
2464 /* Pre-allocate the symbol table (but not the string table). The reason
2465 is that the dysymtab is after the symbol table but before the string
2466 table (required by the native strip tool). */
2469 unsigned int symlen;
2470 unsigned int wide = bfd_mach_o_wide_p (abfd);
2472 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2474 /* Align for symbols. */
2475 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2476 symtab->symoff = mdata->filelen;
2478 symtab->nsyms = bfd_get_symcount (abfd);
2479 mdata->filelen += symtab->nsyms * symlen;
2482 /* Build the dysymtab. */
2483 if (dysymtab != NULL)
2484 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2487 /* Write symtab and strtab. */
2489 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2492 /* Adjust linkedit size. */
2493 if (linkedit != NULL)
2495 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2497 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2498 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2499 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2501 linkedit->initprot = BFD_MACH_O_PROT_READ;
2502 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2503 | BFD_MACH_O_PROT_EXECUTE;
2506 /* Second pass: write commands. */
2507 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2509 struct mach_o_load_command_external raw;
2510 unsigned long typeflag;
2512 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
2514 bfd_h_put_32 (abfd, typeflag, raw.cmd);
2515 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
2517 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
2518 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
2523 case BFD_MACH_O_LC_SEGMENT:
2524 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
2527 case BFD_MACH_O_LC_SEGMENT_64:
2528 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
2531 case BFD_MACH_O_LC_SYMTAB:
2532 if (!bfd_mach_o_write_symtab (abfd, cmd))
2535 case BFD_MACH_O_LC_DYSYMTAB:
2536 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
2539 case BFD_MACH_O_LC_THREAD:
2540 case BFD_MACH_O_LC_UNIXTHREAD:
2541 if (!bfd_mach_o_write_thread (abfd, cmd))
2544 case BFD_MACH_O_LC_LOAD_DYLIB:
2545 if (!bfd_mach_o_write_dylib (abfd, cmd))
2548 case BFD_MACH_O_LC_LOAD_DYLINKER:
2549 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2552 case BFD_MACH_O_LC_MAIN:
2553 if (!bfd_mach_o_write_main (abfd, cmd))
2556 case BFD_MACH_O_LC_DYLD_INFO:
2557 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2561 (*_bfd_error_handler)
2562 (_("unable to write unknown load command 0x%lx"),
2563 (unsigned long) cmd->type);
2572 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
2573 bfd_mach_o_section *s)
2575 if (seg->sect_head == NULL)
2578 seg->sect_tail->next = s;
2582 /* Create section Mach-O flags from BFD flags. */
2585 bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2589 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2591 /* Create default flags. */
2592 bfd_flags = bfd_get_section_flags (abfd, sec);
2593 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2594 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2595 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2596 | BFD_MACH_O_S_REGULAR;
2597 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2598 s->flags = BFD_MACH_O_S_ZEROFILL;
2599 else if (bfd_flags & SEC_DEBUGGING)
2600 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2602 s->flags = BFD_MACH_O_S_REGULAR;
2606 bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2608 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2612 seg->fileoff = mdata->filelen;
2613 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2614 | BFD_MACH_O_PROT_EXECUTE;
2615 seg->maxprot = seg->initprot;
2617 /* Append sections to the segment.
2619 This is a little tedious, we have to honor the need to account zerofill
2620 sections after all the rest. This forces us to do the calculation of
2621 total vmsize in three passes so that any alignment increments are
2622 properly accounted. */
2623 for (i = 0; i < mdata->nsects; ++i)
2625 bfd_mach_o_section *s = mdata->sections[i];
2626 asection *sec = s->bfdsection;
2628 /* Although we account for zerofill section sizes in vm order, they are
2629 placed in the file in source sequence. */
2630 bfd_mach_o_append_section_to_segment (seg, s);
2633 /* Zerofill sections have zero file size & offset, the only content
2634 written to the file is the symbols. */
2635 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2636 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2637 == BFD_MACH_O_S_GB_ZEROFILL))
2640 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2641 sections, even those with zero size. */
2644 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2645 seg->vmsize += s->size;
2647 /* MH_OBJECT files have unaligned content. */
2650 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2651 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2653 seg->filesize += s->size;
2655 /* The system tools write even zero-sized sections with an offset
2656 field set to the current file position. */
2657 s->offset = mdata->filelen;
2660 sec->filepos = s->offset;
2661 mdata->filelen += s->size;
2664 /* Now pass through again, for zerofill, only now we just update the
2665 vmsize, and then for zerofill_GB. */
2666 for (j = 0; j < 2; j++)
2671 stype = BFD_MACH_O_S_ZEROFILL;
2673 stype = BFD_MACH_O_S_GB_ZEROFILL;
2675 for (i = 0; i < mdata->nsects; ++i)
2677 bfd_mach_o_section *s = mdata->sections[i];
2679 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2684 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2685 seg->vmsize += s->size;
2690 /* Allocate space for the relocations. */
2691 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2693 for (i = 0; i < mdata->nsects; ++i)
2695 bfd_mach_o_section *ms = mdata->sections[i];
2696 asection *sec = ms->bfdsection;
2698 ms->nreloc = sec->reloc_count;
2699 if (ms->nreloc == 0)
2701 /* Clear nreloc and reloff if there is no relocs. */
2705 sec->rel_filepos = mdata->filelen;
2706 ms->reloff = sec->rel_filepos;
2707 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2714 bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2716 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2718 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2720 bfd_mach_o_section *s;
2724 seg->fileoff = mdata->filelen;
2729 /* Append sections to the segment. We assume they are properly ordered
2730 by vma (but we check that). */
2732 for (i = 0; i < mdata->nsects; ++i)
2734 s = mdata->sections[i];
2736 /* Consider only sections for this segment. */
2737 if (strcmp (seg->segname, s->segname) != 0)
2740 bfd_mach_o_append_section_to_segment (seg, s);
2742 BFD_ASSERT (s->addr >= vma);
2743 vma = s->addr + s->size;
2746 /* Set segment file offset: make it page aligned. */
2747 vma = seg->sect_head->addr;
2748 seg->vmaddr = vma & ~pagemask;
2749 if ((mdata->filelen & pagemask) > (vma & pagemask))
2750 mdata->filelen += pagemask + 1;
2751 seg->fileoff = mdata->filelen & ~pagemask;
2752 mdata->filelen = seg->fileoff + (vma & pagemask);
2754 /* Set section file offset. */
2755 for (s = seg->sect_head; s != NULL; s = s->next)
2757 asection *sec = s->bfdsection;
2758 flagword flags = bfd_get_section_flags (abfd, sec);
2760 /* Adjust segment size. */
2761 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2762 seg->vmsize += s->size;
2764 /* File offset and length. */
2765 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2767 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2768 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2769 != BFD_MACH_O_S_GB_ZEROFILL))
2771 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2773 s->offset = mdata->filelen;
2774 s->bfdsection->filepos = s->offset;
2776 seg->filesize += s->size;
2777 mdata->filelen += s->size;
2782 s->bfdsection->filepos = 0;
2785 /* Set protection. */
2786 if (flags & SEC_LOAD)
2788 if (flags & SEC_CODE)
2789 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
2790 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
2791 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
2794 /* Relocs shouldn't appear in non-object files. */
2795 if (s->bfdsection->reloc_count != 0)
2800 if (seg->initprot != 0)
2801 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2802 | BFD_MACH_O_PROT_EXECUTE;
2806 /* Round segment size (and file size). */
2807 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
2808 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
2809 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
2814 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
2815 fields in header. */
2818 bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
2820 unsigned wide = mach_o_wide_p (&mdata->header);
2821 unsigned int hdrlen;
2823 bfd_mach_o_load_command *cmd;
2826 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2827 align = wide ? 8 - 1 : 4 - 1;
2829 mdata->header.ncmds = 0;
2831 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
2833 mdata->header.ncmds++;
2834 cmd->offset = offset;
2838 case BFD_MACH_O_LC_SEGMENT_64:
2839 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2840 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
2842 case BFD_MACH_O_LC_SEGMENT:
2843 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2844 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
2846 case BFD_MACH_O_LC_SYMTAB:
2847 cmd->len = sizeof (struct mach_o_symtab_command_external)
2848 + BFD_MACH_O_LC_SIZE;
2850 case BFD_MACH_O_LC_DYSYMTAB:
2851 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2852 + BFD_MACH_O_LC_SIZE;
2854 case BFD_MACH_O_LC_LOAD_DYLIB:
2855 cmd->len = sizeof (struct mach_o_dylib_command_external)
2856 + BFD_MACH_O_LC_SIZE;
2857 cmd->command.dylib.name_offset = cmd->len;
2858 cmd->len += strlen (cmd->command.dylib.name_str);
2859 cmd->len = (cmd->len + align) & ~align;
2861 case BFD_MACH_O_LC_LOAD_DYLINKER:
2862 cmd->len = sizeof (struct mach_o_str_command_external)
2863 + BFD_MACH_O_LC_SIZE;
2864 cmd->command.dylinker.name_offset = cmd->len;
2865 cmd->len += strlen (cmd->command.dylinker.name_str);
2866 cmd->len = (cmd->len + align) & ~align;
2868 case BFD_MACH_O_LC_MAIN:
2869 cmd->len = sizeof (struct mach_o_entry_point_command_external)
2870 + BFD_MACH_O_LC_SIZE;
2872 case BFD_MACH_O_LC_DYLD_INFO:
2873 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
2874 + BFD_MACH_O_LC_SIZE;
2877 (*_bfd_error_handler)
2878 (_("unable to layout unknown load command 0x%lx"),
2879 (unsigned long) cmd->type);
2883 BFD_ASSERT (cmd->len % (align + 1) == 0);
2886 mdata->header.sizeofcmds = offset - hdrlen;
2887 mdata->filelen = offset;
2890 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
2894 bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
2895 bfd_mach_o_load_command *cmd,
2896 const char *segname, unsigned int nbr_sect)
2898 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2899 unsigned wide = mach_o_wide_p (&mdata->header);
2901 /* Init segment command. */
2902 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
2903 cmd->type_required = FALSE;
2905 strcpy (seg->segname, segname);
2906 seg->nsects = nbr_sect;
2916 seg->sect_head = NULL;
2917 seg->sect_tail = NULL;
2920 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2921 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2922 and copy functionality. */
2925 bfd_mach_o_build_commands (bfd *abfd)
2927 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2928 unsigned wide = mach_o_wide_p (&mdata->header);
2929 unsigned int nbr_segcmd = 0;
2930 bfd_mach_o_load_command *commands;
2931 unsigned int nbr_commands;
2932 int symtab_idx = -1;
2933 int dysymtab_idx = -1;
2937 /* Return now if already built. */
2938 if (mdata->header.ncmds != 0)
2941 /* Fill in the file type, if not already set. */
2942 if (mdata->header.filetype == 0)
2944 if (abfd->flags & EXEC_P)
2945 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2946 else if (abfd->flags & DYNAMIC)
2947 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2949 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
2952 /* If hasn't already been done, flatten sections list, and sort
2953 if/when required. Must be done before the symbol table is adjusted,
2954 since that depends on properly numbered sections. */
2955 if (mdata->nsects == 0 || mdata->sections == NULL)
2956 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2959 /* Order the symbol table, fill-in/check mach-o specific fields and
2960 partition out any indirect symbols. */
2961 if (!bfd_mach_o_mangle_symbols (abfd))
2964 /* Segment commands. */
2965 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
2967 /* Only one segment for all the sections. But the segment is
2968 optional if there is no sections. */
2969 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
2973 bfd_mach_o_section *prev_sect = NULL;
2975 /* One pagezero segment and one linkedit segment. */
2978 /* Create one segment for associated segment name in sections.
2979 Assume that sections with the same segment name are consecutive. */
2980 for (i = 0; i < mdata->nsects; i++)
2982 bfd_mach_o_section *this_sect = mdata->sections[i];
2984 if (prev_sect == NULL
2985 || strcmp (prev_sect->segname, this_sect->segname) != 0)
2988 prev_sect = this_sect;
2993 nbr_commands = nbr_segcmd;
2995 /* One command for the symbol table (only if there are symbols. */
2996 if (bfd_get_symcount (abfd) > 0)
2997 symtab_idx = nbr_commands++;
3000 This is a rather crude test for whether we should build a dysymtab. */
3001 if (bfd_mach_o_should_emit_dysymtab ()
3002 && bfd_get_symcount (abfd))
3004 /* If there should be a case where a dysymtab could be emitted without
3005 a symtab (seems improbable), this would need amending. */
3006 dysymtab_idx = nbr_commands++;
3009 /* Add an entry point command. */
3010 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3011 && bfd_get_start_address (abfd) != 0)
3012 main_idx = nbr_commands++;
3014 /* Well, we must have a header, at least. */
3015 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3017 /* A bit unusual, but no content is valid;
3018 as -n empty.s -o empty.o */
3019 if (nbr_commands == 0)
3021 /* Layout commands (well none...) and set headers command fields. */
3022 bfd_mach_o_layout_commands (mdata);
3026 /* Create commands for segments (and symtabs), prepend them. */
3027 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3028 if (commands == NULL)
3030 for (i = 0; i < nbr_commands - 1; i++)
3031 commands[i].next = &commands[i + 1];
3032 commands[nbr_commands - 1].next = mdata->first_command;
3033 if (mdata->first_command == NULL)
3034 mdata->last_command = &commands[nbr_commands - 1];
3035 mdata->first_command = &commands[0];
3037 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3039 /* For object file, there is only one segment. */
3040 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3042 else if (nbr_segcmd != 0)
3044 bfd_mach_o_load_command *cmd;
3046 BFD_ASSERT (nbr_segcmd >= 2);
3050 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3052 /* Segments from sections. */
3054 for (i = 0; i < mdata->nsects;)
3056 const char *segname = mdata->sections[i]->segname;
3057 unsigned int nbr_sect = 1;
3059 /* Count number of sections for this segment. */
3060 for (i++; i < mdata->nsects; i++)
3061 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3066 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3071 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
3074 if (symtab_idx >= 0)
3076 /* Init symtab command. */
3077 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
3079 cmd->type = BFD_MACH_O_LC_SYMTAB;
3080 cmd->type_required = FALSE;
3083 /* If required, setup symtab command, see comment above about the quality
3085 if (dysymtab_idx >= 0)
3087 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
3089 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
3090 cmd->type_required = FALSE;
3093 /* Create the main command. */
3096 bfd_mach_o_load_command *cmd = &commands[main_idx];
3098 cmd->type = BFD_MACH_O_LC_MAIN;
3099 cmd->type_required = TRUE;
3101 cmd->command.main.entryoff = 0;
3102 cmd->command.main.stacksize = 0;
3105 /* Layout commands. */
3106 bfd_mach_o_layout_commands (mdata);
3108 /* So, now we have sized the commands and the filelen set to that.
3109 Now we can build the segment command and set the section file offsets. */
3110 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3112 for (i = 0; i < nbr_segcmd; i++)
3113 if (!bfd_mach_o_build_obj_seg_command
3114 (abfd, &commands[i].command.segment))
3121 /* Skip pagezero and linkedit segments. */
3122 for (i = 1; i < nbr_segcmd - 1; i++)
3124 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3126 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3129 if (seg->vmaddr + seg->vmsize > maxvma)
3130 maxvma = seg->vmaddr + seg->vmsize;
3133 /* Set the size of __PAGEZERO. */
3134 commands[0].command.segment.vmsize =
3135 commands[1].command.segment.vmaddr;
3137 /* Set the vma and fileoff of __LINKEDIT. */
3138 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3139 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3141 /* Set entry point (once segments have been laid out). */
3143 commands[main_idx].command.main.entryoff =
3144 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3150 /* Set the contents of a section. */
3153 bfd_mach_o_set_section_contents (bfd *abfd,
3155 const void * location,
3157 bfd_size_type count)
3161 /* Trying to write the first section contents will trigger the creation of
3162 the load commands if they are not already present. */
3163 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
3169 pos = section->filepos + offset;
3170 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3171 || bfd_bwrite (location, count, abfd) != count)
3178 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
3179 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3184 /* Make an empty symbol. This is required only because
3185 bfd_make_section_anyway wants to create a symbol for the section. */
3188 bfd_mach_o_make_empty_symbol (bfd *abfd)
3190 asymbol *new_symbol;
3192 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3193 if (new_symbol == NULL)
3195 new_symbol->the_bfd = abfd;
3196 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
3201 bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
3203 struct mach_o_header_external raw;
3205 bfd_vma (*get32) (const void *) = NULL;
3207 /* Just read the magic number. */
3208 if (bfd_seek (abfd, 0, SEEK_SET) != 0
3209 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
3212 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3214 header->byteorder = BFD_ENDIAN_BIG;
3215 header->magic = BFD_MACH_O_MH_MAGIC;
3216 header->version = 1;
3219 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3221 header->byteorder = BFD_ENDIAN_LITTLE;
3222 header->magic = BFD_MACH_O_MH_MAGIC;
3223 header->version = 1;
3226 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3228 header->byteorder = BFD_ENDIAN_BIG;
3229 header->magic = BFD_MACH_O_MH_MAGIC_64;
3230 header->version = 2;
3233 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3235 header->byteorder = BFD_ENDIAN_LITTLE;
3236 header->magic = BFD_MACH_O_MH_MAGIC_64;
3237 header->version = 2;
3242 header->byteorder = BFD_ENDIAN_UNKNOWN;
3246 /* Once the size of the header is known, read the full header. */
3247 size = mach_o_wide_p (header) ?
3248 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3250 if (bfd_seek (abfd, 0, SEEK_SET) != 0
3251 || bfd_bread (&raw, size, abfd) != size)
3254 header->cputype = (*get32) (raw.cputype);
3255 header->cpusubtype = (*get32) (raw.cpusubtype);
3256 header->filetype = (*get32) (raw.filetype);
3257 header->ncmds = (*get32) (raw.ncmds);
3258 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3259 header->flags = (*get32) (raw.flags);
3261 if (mach_o_wide_p (header))
3262 header->reserved = (*get32) (raw.reserved);
3264 header->reserved = 0;
3270 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3272 bfd_mach_o_section *s;
3273 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
3275 s = bfd_mach_o_get_mach_o_section (sec);
3279 static const mach_o_section_name_xlat * xlat;
3281 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3284 sec->used_by_bfd = s;
3285 s->bfdsection = sec;
3287 /* Create the Darwin seg/sect name pair from the bfd name.
3288 If this is a canonical name for which a specific paiting exists
3289 there will also be defined flags, type, attribute and alignment
3291 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3294 s->flags = xlat->macho_sectype | xlat->macho_secattr;
3295 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
3297 (void) bfd_set_section_alignment (abfd, sec, s->align);
3298 bfd_flags = bfd_get_section_flags (abfd, sec);
3299 if (bfd_flags == SEC_NO_FLAGS)
3300 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3303 /* Create default flags. */
3304 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
3307 return _bfd_generic_new_section_hook (abfd, sec);
3311 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3315 bfd_mach_o_section *section;
3317 flags = bfd_get_section_flags (abfd, sec);
3318 section = bfd_mach_o_get_mach_o_section (sec);
3320 /* TODO: see if we should use the xlat system for doing this by
3321 preference and fall back to this for unknown sections. */
3323 if (flags == SEC_NO_FLAGS)
3325 /* Try to guess flags. */
3326 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3327 flags = SEC_DEBUGGING;
3331 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3332 != BFD_MACH_O_S_ZEROFILL)
3335 if (prot & BFD_MACH_O_PROT_EXECUTE)
3337 if (prot & BFD_MACH_O_PROT_WRITE)
3339 else if (prot & BFD_MACH_O_PROT_READ)
3340 flags |= SEC_READONLY;
3346 if ((flags & SEC_DEBUGGING) == 0)
3350 if (section->offset != 0)
3351 flags |= SEC_HAS_CONTENTS;
3352 if (section->nreloc != 0)
3355 bfd_set_section_flags (abfd, sec, flags);
3357 sec->vma = section->addr;
3358 sec->lma = section->addr;
3359 sec->size = section->size;
3360 sec->filepos = section->offset;
3361 sec->alignment_power = section->align;
3362 sec->segment_mark = 0;
3363 sec->reloc_count = section->nreloc;
3364 sec->rel_filepos = section->reloff;
3368 bfd_mach_o_make_bfd_section (bfd *abfd,
3369 const unsigned char *segname,
3370 const unsigned char *sectname)
3375 bfd_mach_o_convert_section_name_to_bfd
3376 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3380 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3384 bfd_mach_o_read_section_32 (bfd *abfd,
3385 unsigned int offset,
3388 struct mach_o_section_32_external raw;
3390 bfd_mach_o_section *section;
3392 if (bfd_seek (abfd, offset, SEEK_SET) != 0
3393 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3394 != BFD_MACH_O_SECTION_SIZE))
3397 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3401 section = bfd_mach_o_get_mach_o_section (sec);
3402 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3403 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3404 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3405 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3406 section->addr = bfd_h_get_32 (abfd, raw.addr);
3407 section->size = bfd_h_get_32 (abfd, raw.size);
3408 section->offset = bfd_h_get_32 (abfd, raw.offset);
3409 section->align = bfd_h_get_32 (abfd, raw.align);
3410 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3411 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3412 section->flags = bfd_h_get_32 (abfd, raw.flags);
3413 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3414 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3415 section->reserved3 = 0;
3417 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3423 bfd_mach_o_read_section_64 (bfd *abfd,
3424 unsigned int offset,
3427 struct mach_o_section_64_external raw;
3429 bfd_mach_o_section *section;
3431 if (bfd_seek (abfd, offset, SEEK_SET) != 0
3432 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3433 != BFD_MACH_O_SECTION_64_SIZE))
3436 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3440 section = bfd_mach_o_get_mach_o_section (sec);
3441 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3442 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3443 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3444 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3445 section->addr = bfd_h_get_64 (abfd, raw.addr);
3446 section->size = bfd_h_get_64 (abfd, raw.size);
3447 section->offset = bfd_h_get_32 (abfd, raw.offset);
3448 section->align = bfd_h_get_32 (abfd, raw.align);
3449 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3450 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3451 section->flags = bfd_h_get_32 (abfd, raw.flags);
3452 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3453 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3454 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3456 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3462 bfd_mach_o_read_section (bfd *abfd,
3463 unsigned int offset,
3468 return bfd_mach_o_read_section_64 (abfd, offset, prot);
3470 return bfd_mach_o_read_section_32 (abfd, offset, prot);
3474 bfd_mach_o_read_symtab_symbol (bfd *abfd,
3475 bfd_mach_o_symtab_command *sym,
3476 bfd_mach_o_asymbol *s,
3479 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3480 unsigned int wide = mach_o_wide_p (&mdata->header);
3481 unsigned int symwidth =
3482 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
3483 unsigned int symoff = sym->symoff + (i * symwidth);
3484 struct mach_o_nlist_64_external raw;
3485 unsigned char type = -1;
3486 unsigned char section = -1;
3488 symvalue value = -1;
3489 unsigned long stroff = -1;
3490 unsigned int symtype = -1;
3492 BFD_ASSERT (sym->strtab != NULL);
3494 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
3495 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3497 (*_bfd_error_handler)
3498 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
3499 symwidth, (unsigned long) symoff);
3503 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3504 type = bfd_h_get_8 (abfd, raw.n_type);
3505 symtype = type & BFD_MACH_O_N_TYPE;
3506 section = bfd_h_get_8 (abfd, raw.n_sect);
3507 desc = bfd_h_get_16 (abfd, raw.n_desc);
3509 value = bfd_h_get_64 (abfd, raw.n_value);
3511 value = bfd_h_get_32 (abfd, raw.n_value);
3513 if (stroff >= sym->strsize)
3515 (*_bfd_error_handler)
3516 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
3517 (unsigned long) stroff,
3518 (unsigned long) sym->strsize);
3522 s->symbol.the_bfd = abfd;
3523 s->symbol.name = sym->strtab + stroff;
3524 s->symbol.value = value;
3525 s->symbol.flags = 0x0;
3526 s->symbol.udata.i = i;
3528 s->n_sect = section;
3531 if (type & BFD_MACH_O_N_STAB)
3533 s->symbol.flags |= BSF_DEBUGGING;
3534 s->symbol.section = bfd_und_section_ptr;
3546 if ((section > 0) && (section <= mdata->nsects))
3548 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3550 s->symbol.value - mdata->sections[section - 1]->addr;
3557 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
3558 s->symbol.flags |= BSF_GLOBAL;
3560 s->symbol.flags |= BSF_LOCAL;
3564 case BFD_MACH_O_N_UNDF:
3565 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3566 && s->symbol.value != 0)
3568 /* A common symbol. */
3569 s->symbol.section = bfd_com_section_ptr;
3570 s->symbol.flags = BSF_NO_FLAGS;
3574 s->symbol.section = bfd_und_section_ptr;
3575 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3576 s->symbol.flags |= BSF_WEAK;
3579 case BFD_MACH_O_N_PBUD:
3580 s->symbol.section = bfd_und_section_ptr;
3582 case BFD_MACH_O_N_ABS:
3583 s->symbol.section = bfd_abs_section_ptr;
3585 case BFD_MACH_O_N_SECT:
3586 if ((section > 0) && (section <= mdata->nsects))
3588 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3590 s->symbol.value - mdata->sections[section - 1]->addr;
3594 /* Mach-O uses 0 to mean "no section"; not an error. */
3597 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3598 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
3599 s->symbol.name, section, mdata->nsects);
3601 s->symbol.section = bfd_und_section_ptr;
3604 case BFD_MACH_O_N_INDR:
3605 /* FIXME: we don't follow the BFD convention as this indirect symbol
3606 won't be followed by the referenced one. This looks harmless
3607 unless we start using the linker. */
3608 s->symbol.flags |= BSF_INDIRECT;
3609 s->symbol.section = bfd_ind_section_ptr;
3610 s->symbol.value = 0;
3613 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3614 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
3615 s->symbol.name, symtype);
3616 s->symbol.section = bfd_und_section_ptr;
3625 bfd_mach_o_read_symtab_strtab (bfd *abfd)
3627 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3628 bfd_mach_o_symtab_command *sym = mdata->symtab;
3630 /* Fail if there is no symtab. */
3634 /* Success if already loaded. */
3638 if (abfd->flags & BFD_IN_MEMORY)
3640 struct bfd_in_memory *b;
3642 b = (struct bfd_in_memory *) abfd->iostream;
3644 if ((sym->stroff + sym->strsize) > b->size)
3646 bfd_set_error (bfd_error_file_truncated);
3649 sym->strtab = (char *) b->buffer + sym->stroff;
3653 sym->strtab = bfd_alloc (abfd, sym->strsize);
3654 if (sym->strtab == NULL)
3657 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
3658 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3660 /* PR 17512: file: 10888-1609-0.004. */
3661 bfd_release (abfd, sym->strtab);
3663 bfd_set_error (bfd_error_file_truncated);
3672 bfd_mach_o_read_symtab_symbols (bfd *abfd)
3674 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3675 bfd_mach_o_symtab_command *sym = mdata->symtab;
3678 if (sym == NULL || sym->symbols)
3679 /* Return now if there are no symbols or if already loaded. */
3682 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
3684 if (sym->symbols == NULL)
3686 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
3690 if (!bfd_mach_o_read_symtab_strtab (abfd))
3692 bfd_release (abfd, sym->symbols);
3693 sym->symbols = NULL;
3697 for (i = 0; i < sym->nsyms; i++)
3699 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3701 bfd_release (abfd, sym->symbols);
3702 sym->symbols = NULL;
3711 bfd_mach_o_i386_flavour_string (unsigned int flavour)
3713 switch ((int) flavour)
3715 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3716 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3717 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3718 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3719 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3720 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3721 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3722 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3723 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3724 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3725 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3726 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
3727 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3728 default: return "UNKNOWN";
3733 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3735 switch ((int) flavour)
3737 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3738 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3739 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3740 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3741 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3742 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3743 default: return "UNKNOWN";
3748 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3750 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
3751 struct mach_o_str_command_external raw;
3752 unsigned int nameoff;
3753 unsigned int namelen;
3755 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3756 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3759 nameoff = bfd_h_get_32 (abfd, raw.str);
3761 cmd->name_offset = nameoff;
3762 namelen = command->len - nameoff;
3763 nameoff += command->offset;
3764 cmd->name_str = bfd_alloc (abfd, namelen);
3765 if (cmd->name_str == NULL)
3767 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3768 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3774 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3776 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
3777 struct mach_o_dylib_command_external raw;
3778 unsigned int nameoff;
3779 unsigned int namelen;
3781 switch (command->type)
3783 case BFD_MACH_O_LC_LOAD_DYLIB:
3784 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3785 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3786 case BFD_MACH_O_LC_ID_DYLIB:
3787 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3788 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3795 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3796 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3799 nameoff = bfd_h_get_32 (abfd, raw.name);
3800 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3801 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3802 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3804 cmd->name_offset = command->offset + nameoff;
3805 namelen = command->len - nameoff;
3806 cmd->name_str = bfd_alloc (abfd, namelen);
3807 if (cmd->name_str == NULL)
3809 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3810 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3816 bfd_mach_o_read_prebound_dylib (bfd *abfd,
3817 bfd_mach_o_load_command *command)
3819 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
3820 struct mach_o_prebound_dylib_command_external raw;
3821 unsigned int nameoff;
3822 unsigned int modoff;
3823 unsigned int str_len;
3826 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3827 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3830 nameoff = bfd_h_get_32 (abfd, raw.name);
3831 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
3832 if (nameoff > command->len || modoff > command->len)
3835 str_len = command->len - sizeof (raw);
3836 str = bfd_alloc (abfd, str_len);
3839 if (bfd_bread (str, str_len, abfd) != str_len)
3842 cmd->name_offset = command->offset + nameoff;
3843 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
3844 cmd->linked_modules_offset = command->offset + modoff;
3846 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3847 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3852 bfd_mach_o_read_prebind_cksum (bfd *abfd,
3853 bfd_mach_o_load_command *command)
3855 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
3856 struct mach_o_prebind_cksum_command_external raw;
3858 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3859 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3862 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
3867 bfd_mach_o_read_twolevel_hints (bfd *abfd,
3868 bfd_mach_o_load_command *command)
3870 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
3871 struct mach_o_twolevel_hints_command_external raw;
3873 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3874 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3877 cmd->offset = bfd_get_32 (abfd, raw.offset);
3878 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
3883 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3885 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3886 struct mach_o_fvmlib_command_external raw;
3887 unsigned int nameoff;
3888 unsigned int namelen;
3890 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3891 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3894 nameoff = bfd_h_get_32 (abfd, raw.name);
3895 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3896 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3898 fvm->name_offset = command->offset + nameoff;
3899 namelen = command->len - nameoff;
3900 fvm->name_str = bfd_alloc (abfd, namelen);
3901 if (fvm->name_str == NULL)
3903 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3904 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
3910 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3912 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3913 bfd_mach_o_thread_command *cmd = &command->command.thread;
3914 unsigned int offset;
3915 unsigned int nflavours;
3918 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3919 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3921 /* Count the number of threads. */
3924 while (offset != command->len)
3926 struct mach_o_thread_command_external raw;
3928 if (offset >= command->len)
3931 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3932 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3935 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3939 /* Allocate threads. */
3940 cmd->flavours = bfd_alloc
3941 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3942 if (cmd->flavours == NULL)
3944 cmd->nflavours = nflavours;
3948 while (offset != command->len)
3950 struct mach_o_thread_command_external raw;
3952 if (offset >= command->len)
3955 if (nflavours >= cmd->nflavours)
3958 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3959 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3962 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3963 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3964 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3965 offset += cmd->flavours[nflavours].size + sizeof (raw);
3969 for (i = 0; i < nflavours; i++)
3972 unsigned int snamelen;
3974 const char *flavourstr;
3975 const char *prefix = "LC_THREAD";
3978 switch (mdata->header.cputype)
3980 case BFD_MACH_O_CPU_TYPE_POWERPC:
3981 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
3983 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3985 case BFD_MACH_O_CPU_TYPE_I386:
3986 case BFD_MACH_O_CPU_TYPE_X86_64:
3988 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3991 flavourstr = "UNKNOWN_ARCHITECTURE";
3995 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
3996 sname = bfd_alloc (abfd, snamelen);
4002 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4003 if (bfd_get_section_by_name (abfd, sname) == NULL)
4008 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
4012 bfdsec->size = cmd->flavours[i].size;
4013 bfdsec->filepos = cmd->flavours[i].offset;
4014 bfdsec->alignment_power = 0x0;
4016 cmd->section = bfdsec;
4023 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
4025 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
4026 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4028 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4031 struct mach_o_dysymtab_command_external raw;
4033 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4034 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4037 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4038 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4039 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4040 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4041 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4042 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4043 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4044 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4045 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4046 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4047 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4048 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4049 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4050 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4051 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4052 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4053 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4054 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4057 if (cmd->nmodtab != 0)
4060 int wide = bfd_mach_o_wide_p (abfd);
4061 unsigned int module_len = wide ? 56 : 52;
4064 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
4065 if (cmd->dylib_module == NULL)
4068 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
4071 for (i = 0; i < cmd->nmodtab; i++)
4073 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4075 unsigned char buf[56];
4077 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4080 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4081 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4082 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4083 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4084 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4085 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4086 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4087 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4088 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4089 v = bfd_h_get_32 (abfd, buf +36);
4090 module->iinit = v & 0xffff;
4091 module->iterm = (v >> 16) & 0xffff;
4092 v = bfd_h_get_32 (abfd, buf + 40);
4093 module->ninit = v & 0xffff;
4094 module->nterm = (v >> 16) & 0xffff;
4097 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4098 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4102 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4103 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4112 cmd->dylib_toc = bfd_alloc
4113 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
4114 if (cmd->dylib_toc == NULL)
4117 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
4120 for (i = 0; i < cmd->ntoc; i++)
4122 struct mach_o_dylib_table_of_contents_external raw;
4123 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4125 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4128 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4129 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4133 if (cmd->nindirectsyms != 0)
4137 cmd->indirect_syms = bfd_alloc
4138 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
4139 if (cmd->indirect_syms == NULL)
4142 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
4145 for (i = 0; i < cmd->nindirectsyms; i++)
4147 unsigned char raw[4];
4148 unsigned int *is = &cmd->indirect_syms[i];
4150 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4153 *is = bfd_h_get_32 (abfd, raw);
4157 if (cmd->nextrefsyms != 0)
4162 cmd->ext_refs = bfd_alloc
4163 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
4164 if (cmd->ext_refs == NULL)
4167 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
4170 for (i = 0; i < cmd->nextrefsyms; i++)
4172 unsigned char raw[4];
4173 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4175 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4178 /* Fields isym and flags are written as bit-fields, thus we need
4179 a specific processing for endianness. */
4180 v = bfd_h_get_32 (abfd, raw);
4181 if (bfd_big_endian (abfd))
4183 ref->isym = (v >> 8) & 0xffffff;
4184 ref->flags = v & 0xff;
4188 ref->isym = v & 0xffffff;
4189 ref->flags = (v >> 24) & 0xff;
4194 if (mdata->dysymtab)
4196 mdata->dysymtab = cmd;
4202 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
4204 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4205 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4206 struct mach_o_symtab_command_external raw;
4208 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4210 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4211 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4214 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4215 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4216 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4217 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
4218 symtab->symbols = NULL;
4219 symtab->strtab = NULL;
4221 if (symtab->nsyms != 0)
4222 abfd->flags |= HAS_SYMS;
4226 mdata->symtab = symtab;
4231 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
4233 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
4235 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4237 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4238 || bfd_bread (cmd->uuid, 16, abfd) != 16)
4245 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
4247 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
4248 struct mach_o_linkedit_data_command_external raw;
4250 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4251 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4254 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4255 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
4260 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
4262 bfd_mach_o_str_command *cmd = &command->command.str;
4263 struct mach_o_str_command_external raw;
4266 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4267 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4270 off = bfd_get_32 (abfd, raw.str);
4271 cmd->stroff = command->offset + off;
4272 cmd->str_len = command->len - off;
4273 cmd->str = bfd_alloc (abfd, cmd->str_len);
4274 if (cmd->str == NULL)
4276 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
4277 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
4282 static unsigned char *
4283 bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4287 buf = bfd_alloc (abfd, size);
4290 if (bfd_seek (abfd, off, SEEK_SET) != 0
4291 || bfd_bread (buf, size, abfd) != size)
4297 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4299 /* Read rebase content. */
4300 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4302 cmd->rebase_content =
4303 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4304 if (cmd->rebase_content == NULL)
4308 /* Read bind content. */
4309 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4312 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4313 if (cmd->bind_content == NULL)
4317 /* Read weak bind content. */
4318 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4320 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4321 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4322 if (cmd->weak_bind_content == NULL)
4326 /* Read lazy bind content. */
4327 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4329 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4330 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4331 if (cmd->lazy_bind_content == NULL)
4335 /* Read export content. */
4336 if (cmd->export_content == NULL && cmd->export_size != 0)
4338 cmd->export_content = bfd_mach_o_alloc_and_read
4339 (abfd, cmd->export_off, cmd->export_size);
4340 if (cmd->export_content == NULL)
4348 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
4350 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
4351 struct mach_o_dyld_info_command_external raw;
4353 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4354 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4357 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4358 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
4359 cmd->rebase_content = NULL;
4360 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4361 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
4362 cmd->bind_content = NULL;
4363 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4364 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
4365 cmd->weak_bind_content = NULL;
4366 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4367 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
4368 cmd->lazy_bind_content = NULL;
4369 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4370 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
4371 cmd->export_content = NULL;
4376 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4378 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4379 struct mach_o_version_min_command_external raw;
4382 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4383 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4386 ver = bfd_get_32 (abfd, raw.version);
4387 cmd->rel = ver >> 16;
4388 cmd->maj = ver >> 8;
4390 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4395 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4397 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4398 struct mach_o_encryption_info_command_external raw;
4400 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4401 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4404 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4405 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4406 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4411 bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4413 bfd_mach_o_main_command *cmd = &command->command.main;
4414 struct mach_o_entry_point_command_external raw;
4416 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4417 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4420 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4421 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4426 bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4428 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4429 struct mach_o_source_version_command_external raw;
4432 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4433 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4436 ver = bfd_get_64 (abfd, raw.version);
4437 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4438 generates warnings) in case of the host doesn't support 64 bit
4440 cmd->e = ver & 0x3ff;
4442 cmd->d = ver & 0x3ff;
4444 cmd->c = ver & 0x3ff;
4446 cmd->b = ver & 0x3ff;
4448 cmd->a = ver & 0xffffff;
4453 bfd_mach_o_read_segment (bfd *abfd,
4454 bfd_mach_o_load_command *command,
4457 bfd_mach_o_segment_command *seg = &command->command.segment;
4462 struct mach_o_segment_command_64_external raw;
4464 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
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_64 (abfd, raw.vmaddr);
4474 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4475 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4476 seg->filesize = bfd_h_get_64 (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);
4484 struct mach_o_segment_command_32_external raw;
4486 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4488 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4489 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4492 memcpy (seg->segname, raw.segname, 16);
4493 seg->segname[16] = '\0';
4495 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4496 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4497 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4498 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4499 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4500 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4501 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4502 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4504 seg->sect_head = NULL;
4505 seg->sect_tail = NULL;
4507 for (i = 0; i < seg->nsects; i++)
4513 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
4514 + (i * BFD_MACH_O_SECTION_64_SIZE);
4516 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
4517 + (i * BFD_MACH_O_SECTION_SIZE);
4519 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
4523 bfd_mach_o_append_section_to_segment
4524 (seg, bfd_mach_o_get_mach_o_section (sec));
4531 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
4533 return bfd_mach_o_read_segment (abfd, command, 0);
4537 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
4539 return bfd_mach_o_read_segment (abfd, command, 1);
4543 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
4545 struct mach_o_load_command_external raw;
4548 /* Read command type and length. */
4549 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
4550 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
4553 cmd = bfd_h_get_32 (abfd, raw.cmd);
4554 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4555 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4556 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
4558 switch (command->type)
4560 case BFD_MACH_O_LC_SEGMENT:
4561 if (!bfd_mach_o_read_segment_32 (abfd, command))
4564 case BFD_MACH_O_LC_SEGMENT_64:
4565 if (!bfd_mach_o_read_segment_64 (abfd, command))
4568 case BFD_MACH_O_LC_SYMTAB:
4569 if (!bfd_mach_o_read_symtab (abfd, command))
4572 case BFD_MACH_O_LC_SYMSEG:
4574 case BFD_MACH_O_LC_THREAD:
4575 case BFD_MACH_O_LC_UNIXTHREAD:
4576 if (!bfd_mach_o_read_thread (abfd, command))
4579 case BFD_MACH_O_LC_LOAD_DYLINKER:
4580 case BFD_MACH_O_LC_ID_DYLINKER:
4581 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
4582 if (!bfd_mach_o_read_dylinker (abfd, command))
4585 case BFD_MACH_O_LC_LOAD_DYLIB:
4586 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
4587 case BFD_MACH_O_LC_ID_DYLIB:
4588 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
4589 case BFD_MACH_O_LC_REEXPORT_DYLIB:
4590 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
4591 if (!bfd_mach_o_read_dylib (abfd, command))
4594 case BFD_MACH_O_LC_PREBOUND_DYLIB:
4595 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4598 case BFD_MACH_O_LC_LOADFVMLIB:
4599 case BFD_MACH_O_LC_IDFVMLIB:
4600 if (!bfd_mach_o_read_fvmlib (abfd, command))
4603 case BFD_MACH_O_LC_IDENT:
4604 case BFD_MACH_O_LC_FVMFILE:
4605 case BFD_MACH_O_LC_PREPAGE:
4606 case BFD_MACH_O_LC_ROUTINES:
4607 case BFD_MACH_O_LC_ROUTINES_64:
4609 case BFD_MACH_O_LC_SUB_FRAMEWORK:
4610 case BFD_MACH_O_LC_SUB_UMBRELLA:
4611 case BFD_MACH_O_LC_SUB_LIBRARY:
4612 case BFD_MACH_O_LC_SUB_CLIENT:
4613 case BFD_MACH_O_LC_RPATH:
4614 if (!bfd_mach_o_read_str (abfd, command))
4617 case BFD_MACH_O_LC_DYSYMTAB:
4618 if (!bfd_mach_o_read_dysymtab (abfd, command))
4621 case BFD_MACH_O_LC_PREBIND_CKSUM:
4622 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4625 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
4626 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4629 case BFD_MACH_O_LC_UUID:
4630 if (!bfd_mach_o_read_uuid (abfd, command))
4633 case BFD_MACH_O_LC_CODE_SIGNATURE:
4634 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
4635 case BFD_MACH_O_LC_FUNCTION_STARTS:
4636 case BFD_MACH_O_LC_DATA_IN_CODE:
4637 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
4638 if (!bfd_mach_o_read_linkedit (abfd, command))
4641 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4642 if (!bfd_mach_o_read_encryption_info (abfd, command))
4645 case BFD_MACH_O_LC_DYLD_INFO:
4646 if (!bfd_mach_o_read_dyld_info (abfd, command))
4649 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4650 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4651 if (!bfd_mach_o_read_version_min (abfd, command))
4654 case BFD_MACH_O_LC_MAIN:
4655 if (!bfd_mach_o_read_main (abfd, command))
4658 case BFD_MACH_O_LC_SOURCE_VERSION:
4659 if (!bfd_mach_o_read_source_version (abfd, command))
4663 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
4664 abfd, (unsigned long) command->type);
4672 bfd_mach_o_flatten_sections (bfd *abfd)
4674 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4675 bfd_mach_o_load_command *cmd;
4678 /* Count total number of sections. */
4681 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4683 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4684 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4686 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4688 mdata->nsects += seg->nsects;
4692 /* Allocate sections array. */
4693 mdata->sections = bfd_alloc (abfd,
4694 mdata->nsects * sizeof (bfd_mach_o_section *));
4696 /* Fill the array. */
4699 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4701 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4702 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4704 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4705 bfd_mach_o_section *sec;
4707 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4709 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4710 mdata->sections[csect++] = sec;
4716 bfd_mach_o_scan_start_address (bfd *abfd)
4718 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4719 bfd_mach_o_thread_command *thr = NULL;
4720 bfd_mach_o_load_command *cmd;
4723 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4724 if (cmd->type == BFD_MACH_O_LC_THREAD
4725 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
4727 thr = &cmd->command.thread;
4730 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
4732 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
4733 bfd_mach_o_section *text_sect = mdata->sections[0];
4737 abfd->start_address = main_cmd->entryoff
4738 + (text_sect->addr - text_sect->offset);
4743 /* An object file has no start address, so do not fail if not found. */
4747 /* FIXME: create a subtarget hook ? */
4748 for (i = 0; i < thr->nflavours; i++)
4750 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
4751 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
4753 unsigned char buf[4];
4755 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
4756 || bfd_bread (buf, 4, abfd) != 4)
4759 abfd->start_address = bfd_h_get_32 (abfd, buf);
4761 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
4762 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
4764 unsigned char buf[4];
4766 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4767 || bfd_bread (buf, 4, abfd) != 4)
4770 abfd->start_address = bfd_h_get_32 (abfd, buf);
4772 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
4773 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
4775 unsigned char buf[8];
4777 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4778 || bfd_bread (buf, 8, abfd) != 8)
4781 abfd->start_address = bfd_h_get_64 (abfd, buf);
4783 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
4784 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
4786 unsigned char buf[8];
4788 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
4789 || bfd_bread (buf, 8, abfd) != 8)
4792 abfd->start_address = bfd_h_get_64 (abfd, buf);
4800 bfd_mach_o_set_arch_mach (bfd *abfd,
4801 enum bfd_architecture arch,
4802 unsigned long machine)
4804 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4806 /* If this isn't the right architecture for this backend, and this
4807 isn't the generic backend, fail. */
4808 if (arch != bed->arch
4809 && arch != bfd_arch_unknown
4810 && bed->arch != bfd_arch_unknown)
4813 return bfd_default_set_arch_mach (abfd, arch, machine);
4817 bfd_mach_o_scan (bfd *abfd,
4818 bfd_mach_o_header *header,
4819 bfd_mach_o_data_struct *mdata)
4822 enum bfd_architecture cputype;
4823 unsigned long cpusubtype;
4824 unsigned int hdrsize;
4826 hdrsize = mach_o_wide_p (header) ?
4827 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
4829 mdata->header = *header;
4831 abfd->flags = abfd->flags & BFD_IN_MEMORY;
4832 switch (header->filetype)
4834 case BFD_MACH_O_MH_OBJECT:
4835 abfd->flags |= HAS_RELOC;
4837 case BFD_MACH_O_MH_EXECUTE:
4838 abfd->flags |= EXEC_P;
4840 case BFD_MACH_O_MH_DYLIB:
4841 case BFD_MACH_O_MH_BUNDLE:
4842 abfd->flags |= DYNAMIC;
4846 abfd->tdata.mach_o_data = mdata;
4848 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4849 &cputype, &cpusubtype);
4850 if (cputype == bfd_arch_unknown)
4852 (*_bfd_error_handler)
4853 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
4854 header->cputype, header->cpusubtype);
4858 bfd_set_arch_mach (abfd, cputype, cpusubtype);
4860 if (header->ncmds != 0)
4862 bfd_mach_o_load_command *cmd;
4864 mdata->first_command = NULL;
4865 mdata->last_command = NULL;
4866 cmd = bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
4870 for (i = 0; i < header->ncmds; i++)
4872 bfd_mach_o_load_command *cur = &cmd[i];
4874 bfd_mach_o_append_command (abfd, cur);
4877 cur->offset = hdrsize;
4880 bfd_mach_o_load_command *prev = &cmd[i - 1];
4881 cur->offset = prev->offset + prev->len;
4884 if (!bfd_mach_o_read_command (abfd, cur))
4889 /* Sections should be flatten before scanning start address. */
4890 bfd_mach_o_flatten_sections (abfd);
4891 if (!bfd_mach_o_scan_start_address (abfd))
4898 bfd_mach_o_mkobject_init (bfd *abfd)
4900 bfd_mach_o_data_struct *mdata = NULL;
4902 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
4905 abfd->tdata.mach_o_data = mdata;
4907 mdata->header.magic = 0;
4908 mdata->header.cputype = 0;
4909 mdata->header.cpusubtype = 0;
4910 mdata->header.filetype = 0;
4911 mdata->header.ncmds = 0;
4912 mdata->header.sizeofcmds = 0;
4913 mdata->header.flags = 0;
4914 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
4915 mdata->first_command = NULL;
4916 mdata->last_command = NULL;
4918 mdata->sections = NULL;
4919 mdata->dyn_reloc_cache = NULL;
4925 bfd_mach_o_gen_mkobject (bfd *abfd)
4927 bfd_mach_o_data_struct *mdata;
4929 if (!bfd_mach_o_mkobject_init (abfd))
4932 mdata = bfd_mach_o_get_data (abfd);
4933 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
4934 mdata->header.cputype = 0;
4935 mdata->header.cpusubtype = 0;
4936 mdata->header.byteorder = abfd->xvec->byteorder;
4937 mdata->header.version = 1;
4943 bfd_mach_o_header_p (bfd *abfd,
4944 bfd_mach_o_filetype filetype,
4945 bfd_mach_o_cpu_type cputype)
4947 bfd_mach_o_header header;
4948 bfd_mach_o_data_struct *mdata;
4950 if (!bfd_mach_o_read_header (abfd, &header))
4953 if (! (header.byteorder == BFD_ENDIAN_BIG
4954 || header.byteorder == BFD_ENDIAN_LITTLE))
4956 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
4957 (unsigned long) header.byteorder);
4961 if (! ((header.byteorder == BFD_ENDIAN_BIG
4962 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
4963 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
4964 || (header.byteorder == BFD_ENDIAN_LITTLE
4965 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
4966 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
4969 /* Check cputype and filetype.
4970 In case of wildcard, do not accept magics that are handled by existing
4974 if (header.cputype != cputype)
4980 /* Do not recognize 64 architectures if not configured for 64bit targets.
4981 This could happen only for generic targets. */
4982 if (mach_o_wide_p (&header))
4989 if (header.filetype != filetype)
4994 switch (header.filetype)
4996 case BFD_MACH_O_MH_CORE:
4997 /* Handled by core_p */
5004 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5008 if (!bfd_mach_o_scan (abfd, &header, mdata))
5014 bfd_set_error (bfd_error_wrong_format);
5020 static const bfd_target *
5021 bfd_mach_o_gen_object_p (bfd *abfd)
5023 return bfd_mach_o_header_p (abfd, 0, 0);
5026 static const bfd_target *
5027 bfd_mach_o_gen_core_p (bfd *abfd)
5029 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
5032 /* Return the base address of ABFD, ie the address at which the image is
5033 mapped. The possible initial pagezero is ignored. */
5036 bfd_mach_o_get_base_address (bfd *abfd)
5038 bfd_mach_o_data_struct *mdata;
5039 bfd_mach_o_load_command *cmd;
5041 /* Check for Mach-O. */
5042 if (!bfd_mach_o_valid (abfd))
5044 mdata = bfd_mach_o_get_data (abfd);
5046 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5048 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5049 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5051 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5053 if (segcmd->initprot != 0)
5054 return segcmd->vmaddr;
5060 typedef struct mach_o_fat_archentry
5062 unsigned long cputype;
5063 unsigned long cpusubtype;
5064 unsigned long offset;
5066 unsigned long align;
5067 } mach_o_fat_archentry;
5069 typedef struct mach_o_fat_data_struct
5071 unsigned long magic;
5072 unsigned long nfat_arch;
5073 mach_o_fat_archentry *archentries;
5074 } mach_o_fat_data_struct;
5077 bfd_mach_o_archive_p (bfd *abfd)
5079 mach_o_fat_data_struct *adata = NULL;
5080 struct mach_o_fat_header_external hdr;
5083 if (bfd_seek (abfd, 0, SEEK_SET) != 0
5084 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
5087 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
5091 adata->magic = bfd_getb32 (hdr.magic);
5092 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
5093 if (adata->magic != 0xcafebabe)
5095 /* Avoid matching Java bytecode files, which have the same magic number.
5096 In the Java bytecode file format this field contains the JVM version,
5097 which starts at 43.0. */
5098 if (adata->nfat_arch > 30)
5101 adata->archentries =
5102 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
5103 if (adata->archentries == NULL)
5106 for (i = 0; i < adata->nfat_arch; i++)
5108 struct mach_o_fat_arch_external arch;
5109 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
5111 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5112 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5113 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5114 adata->archentries[i].size = bfd_getb32 (arch.size);
5115 adata->archentries[i].align = bfd_getb32 (arch.align);
5118 abfd->tdata.mach_o_fat_data = adata;
5123 bfd_release (abfd, adata);
5124 bfd_set_error (bfd_error_wrong_format);
5128 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5129 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5130 Set arelt_data and origin fields too. */
5133 bfd_mach_o_fat_member_init (bfd *abfd,
5134 enum bfd_architecture arch_type,
5135 unsigned long arch_subtype,
5136 mach_o_fat_archentry *entry)
5138 struct areltdata *areltdata;
5139 /* Create the member filename. Use ARCH_NAME. */
5140 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5144 /* Use the architecture name if known. */
5145 abfd->filename = xstrdup (ap->printable_name);
5149 /* Forge a uniq id. */
5150 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
5151 char *name = xmalloc (namelen);
5152 snprintf (name, namelen, "0x%lx-0x%lx",
5153 entry->cputype, entry->cpusubtype);
5154 abfd->filename = name;
5157 areltdata = bfd_zmalloc (sizeof (struct areltdata));
5158 areltdata->parsed_size = entry->size;
5159 abfd->arelt_data = areltdata;
5160 abfd->iostream = NULL;
5161 abfd->origin = entry->offset;
5165 bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
5167 mach_o_fat_data_struct *adata;
5168 mach_o_fat_archentry *entry = NULL;
5171 enum bfd_architecture arch_type;
5172 unsigned long arch_subtype;
5174 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
5175 BFD_ASSERT (adata != NULL);
5177 /* Find index of previous entry. */
5180 /* Start at first one. */
5185 /* Find index of PREV. */
5186 for (i = 0; i < adata->nfat_arch; i++)
5188 if (adata->archentries[i].offset == prev->origin)
5192 if (i == adata->nfat_arch)
5195 bfd_set_error (bfd_error_bad_value);
5199 /* Get next entry. */
5203 if (i >= adata->nfat_arch)
5205 bfd_set_error (bfd_error_no_more_archived_files);
5209 entry = &adata->archentries[i];
5210 nbfd = _bfd_new_bfd_contained_in (archive);
5214 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5215 &arch_type, &arch_subtype);
5217 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5219 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
5224 /* Analogous to stat call. */
5227 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5229 if (abfd->arelt_data == NULL)
5231 bfd_set_error (bfd_error_invalid_operation);
5238 buf->st_mode = 0644;
5239 buf->st_size = arelt_size (abfd);
5244 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5245 If ABFD is a fat image containing a member that corresponds to FORMAT
5246 and ARCH, returns it.
5247 In other case, returns NULL.
5248 This function allows transparent uses of fat images. */
5251 bfd_mach_o_fat_extract (bfd *abfd,
5253 const bfd_arch_info_type *arch)
5256 mach_o_fat_data_struct *adata;
5259 if (bfd_check_format (abfd, format))
5261 if (bfd_get_arch_info (abfd) == arch)
5265 if (!bfd_check_format (abfd, bfd_archive)
5266 || abfd->xvec != &mach_o_fat_vec)
5269 /* This is a Mach-O fat image. */
5270 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5271 BFD_ASSERT (adata != NULL);
5273 for (i = 0; i < adata->nfat_arch; i++)
5275 struct mach_o_fat_archentry *e = &adata->archentries[i];
5276 enum bfd_architecture cpu_type;
5277 unsigned long cpu_subtype;
5279 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5280 &cpu_type, &cpu_subtype);
5281 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5284 /* The architecture is found. */
5285 res = _bfd_new_bfd_contained_in (abfd);
5289 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
5291 if (bfd_check_format (res, format))
5293 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5304 bfd_mach_o_lookup_command (bfd *abfd,
5305 bfd_mach_o_load_command_type type,
5306 bfd_mach_o_load_command **mcommand)
5308 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5309 struct bfd_mach_o_load_command *cmd;
5312 BFD_ASSERT (mdata != NULL);
5313 BFD_ASSERT (mcommand != NULL);
5316 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5318 if (cmd->type != type)
5330 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
5334 case BFD_MACH_O_CPU_TYPE_MC680x0:
5336 case BFD_MACH_O_CPU_TYPE_MC88000:
5338 case BFD_MACH_O_CPU_TYPE_POWERPC:
5340 case BFD_MACH_O_CPU_TYPE_I386:
5342 case BFD_MACH_O_CPU_TYPE_SPARC:
5344 case BFD_MACH_O_CPU_TYPE_I860:
5346 case BFD_MACH_O_CPU_TYPE_HPPA:
5347 return 0xc0000000 - 0x04000000;
5353 /* The following two tables should be kept, as far as possible, in order of
5354 most frequently used entries to optimize their use from gas. */
5356 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
5358 { "regular", BFD_MACH_O_S_REGULAR},
5359 { "coalesced", BFD_MACH_O_S_COALESCED},
5360 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5361 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5362 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5363 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
5364 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
5365 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
5366 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5367 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
5368 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5369 { "interposing", BFD_MACH_O_S_INTERPOSING},
5370 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
5371 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5372 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
5373 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
5374 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5378 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
5380 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5381 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
5382 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5383 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
5384 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
5385 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5386 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5387 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5388 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
5389 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5390 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5394 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5397 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
5399 const bfd_mach_o_xlat_name *x;
5400 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5402 for (x = bfd_mach_o_section_type_name; x->name; x++)
5403 if (strcmp (x->name, name) == 0)
5405 /* We found it... does the target support it? */
5406 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5407 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5408 return x->val; /* OK. */
5410 break; /* Not supported. */
5412 /* Maximum section ID = 0xff. */
5416 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5419 bfd_mach_o_get_section_attribute_from_name (const char *name)
5421 const bfd_mach_o_xlat_name *x;
5423 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5424 if (strcmp (x->name, name) == 0)
5426 return (unsigned int)-1;
5430 bfd_mach_o_core_fetch_environment (bfd *abfd,
5431 unsigned char **rbuf,
5434 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5435 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
5436 bfd_mach_o_load_command *cmd;
5438 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5440 bfd_mach_o_segment_command *seg;
5442 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
5445 seg = &cmd->command.segment;
5447 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5449 unsigned long start = seg->fileoff;
5450 unsigned long end = seg->fileoff + seg->filesize;
5451 unsigned char *buf = bfd_malloc (1024);
5452 unsigned long size = 1024;
5456 bfd_size_type nread = 0;
5457 unsigned long offset;
5458 int found_nonnull = 0;
5460 if (size > (end - start))
5461 size = (end - start);
5463 buf = bfd_realloc_or_free (buf, size);
5467 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5473 nread = bfd_bread (buf, size, abfd);
5481 for (offset = 4; offset <= size; offset += 4)
5485 val = *((unsigned long *) (buf + size - offset));
5486 if (! found_nonnull)
5491 else if (val == 0x0)
5493 unsigned long bottom;
5496 bottom = seg->fileoff + seg->filesize - offset;
5497 top = seg->fileoff + seg->filesize - 4;
5498 *rbuf = bfd_malloc (top - bottom);
5499 *rlen = top - bottom;
5501 memcpy (*rbuf, buf + size - *rlen, *rlen);
5507 if (size == (end - start))
5521 bfd_mach_o_core_file_failing_command (bfd *abfd)
5523 unsigned char *buf = NULL;
5524 unsigned int len = 0;
5527 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5531 return (char *) buf;
5535 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
5540 static bfd_mach_o_uuid_command *
5541 bfd_mach_o_lookup_uuid_command (bfd *abfd)
5543 bfd_mach_o_load_command *uuid_cmd;
5544 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5547 return &uuid_cmd->command.uuid;
5550 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5553 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5555 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5558 BFD_ASSERT (uuid_cmd);
5560 if (!bfd_check_format (abfd, bfd_object))
5563 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5564 || bfd_mach_o_get_data (abfd) == NULL
5565 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5568 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5569 if (dsym_uuid_cmd == NULL)
5572 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5573 sizeof (uuid_cmd->uuid)) != 0)
5579 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5580 The caller is responsible for closing the returned BFD object and
5581 its my_archive if the returned BFD is in a fat dSYM. */
5584 bfd_mach_o_find_dsym (const char *dsym_filename,
5585 const bfd_mach_o_uuid_command *uuid_cmd,
5586 const bfd_arch_info_type *arch)
5588 bfd *base_dsym_bfd, *dsym_bfd;
5590 BFD_ASSERT (uuid_cmd);
5592 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5593 if (base_dsym_bfd == NULL)
5596 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5597 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5600 bfd_close (dsym_bfd);
5601 if (base_dsym_bfd != dsym_bfd)
5602 bfd_close (base_dsym_bfd);
5607 /* Return a BFD created from a dSYM file for ABFD.
5608 The caller is responsible for closing the returned BFD object, its
5609 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5612 bfd_mach_o_follow_dsym (bfd *abfd)
5614 char *dsym_filename;
5615 bfd_mach_o_uuid_command *uuid_cmd;
5616 bfd *dsym_bfd, *base_bfd = abfd;
5617 const char *base_basename;
5619 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5622 if (abfd->my_archive)
5623 base_bfd = abfd->my_archive;
5624 /* BFD may have been opened from a stream. */
5625 if (base_bfd->filename == NULL)
5627 bfd_set_error (bfd_error_invalid_operation);
5630 base_basename = lbasename (base_bfd->filename);
5632 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5633 if (uuid_cmd == NULL)
5636 /* TODO: We assume the DWARF file has the same as the binary's.
5637 It seems apple's GDB checks all files in the dSYM bundle directory.
5638 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5640 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5641 + strlen (dsym_subdir) + 1
5642 + strlen (base_basename) + 1);
5643 sprintf (dsym_filename, "%s%s/%s",
5644 base_bfd->filename, dsym_subdir, base_basename);
5646 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5647 bfd_get_arch_info (abfd));
5648 if (dsym_bfd == NULL)
5649 free (dsym_filename);
5655 bfd_mach_o_find_nearest_line (bfd *abfd,
5659 const char **filename_ptr,
5660 const char **functionname_ptr,
5661 unsigned int *line_ptr,
5662 unsigned int *discriminator_ptr)
5664 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5667 switch (mdata->header.filetype)
5669 case BFD_MACH_O_MH_OBJECT:
5671 case BFD_MACH_O_MH_EXECUTE:
5672 case BFD_MACH_O_MH_DYLIB:
5673 case BFD_MACH_O_MH_BUNDLE:
5674 case BFD_MACH_O_MH_KEXT_BUNDLE:
5675 if (mdata->dwarf2_find_line_info == NULL)
5677 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5678 /* When we couldn't find dSYM for this binary, we look for
5679 the debug information in the binary itself. In this way,
5680 we won't try finding separated dSYM again because
5681 mdata->dwarf2_find_line_info will be filled. */
5682 if (! mdata->dsym_bfd)
5684 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5685 dwarf_debug_sections, symbols,
5686 &mdata->dwarf2_find_line_info,
5694 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5695 filename_ptr, functionname_ptr,
5696 line_ptr, discriminator_ptr,
5697 dwarf_debug_sections, 0,
5698 &mdata->dwarf2_find_line_info);
5702 bfd_mach_o_close_and_cleanup (bfd *abfd)
5704 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5705 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
5707 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5708 bfd_mach_o_free_cached_info (abfd);
5709 if (mdata->dsym_bfd != NULL)
5711 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5712 char *dsym_filename = (char *)(fat_bfd
5714 : mdata->dsym_bfd->filename);
5715 bfd_close (mdata->dsym_bfd);
5716 mdata->dsym_bfd = NULL;
5718 bfd_close (fat_bfd);
5719 free (dsym_filename);
5723 if (bfd_get_format (abfd) == bfd_archive
5724 && abfd->xvec == &mach_o_fat_vec)
5726 return _bfd_generic_close_and_cleanup (abfd);
5729 bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
5731 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5733 free (mdata->dyn_reloc_cache);
5734 mdata->dyn_reloc_cache = NULL;
5735 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5737 free (asect->relocation);
5738 asect->relocation = NULL;
5744 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5745 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5747 #define bfd_mach_o_swap_reloc_in NULL
5748 #define bfd_mach_o_swap_reloc_out NULL
5749 #define bfd_mach_o_print_thread NULL
5750 #define bfd_mach_o_tgt_seg_table NULL
5751 #define bfd_mach_o_section_type_valid_for_tgt NULL
5753 #define TARGET_NAME mach_o_be_vec
5754 #define TARGET_STRING "mach-o-be"
5755 #define TARGET_ARCHITECTURE bfd_arch_unknown
5756 #define TARGET_PAGESIZE 1
5757 #define TARGET_BIG_ENDIAN 1
5758 #define TARGET_ARCHIVE 0
5759 #define TARGET_PRIORITY 1
5760 #include "mach-o-target.c"
5763 #undef TARGET_STRING
5764 #undef TARGET_ARCHITECTURE
5765 #undef TARGET_PAGESIZE
5766 #undef TARGET_BIG_ENDIAN
5767 #undef TARGET_ARCHIVE
5768 #undef TARGET_PRIORITY
5770 #define TARGET_NAME mach_o_le_vec
5771 #define TARGET_STRING "mach-o-le"
5772 #define TARGET_ARCHITECTURE bfd_arch_unknown
5773 #define TARGET_PAGESIZE 1
5774 #define TARGET_BIG_ENDIAN 0
5775 #define TARGET_ARCHIVE 0
5776 #define TARGET_PRIORITY 1
5778 #include "mach-o-target.c"
5781 #undef TARGET_STRING
5782 #undef TARGET_ARCHITECTURE
5783 #undef TARGET_PAGESIZE
5784 #undef TARGET_BIG_ENDIAN
5785 #undef TARGET_ARCHIVE
5786 #undef TARGET_PRIORITY
5788 /* Not yet handled: creating an archive. */
5789 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
5792 #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
5793 #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
5794 #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
5795 #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
5796 #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
5797 #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
5798 #define bfd_mach_o_write_armap _bfd_noarchive_write_armap
5799 #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
5800 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
5801 #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
5803 #define TARGET_NAME mach_o_fat_vec
5804 #define TARGET_STRING "mach-o-fat"
5805 #define TARGET_ARCHITECTURE bfd_arch_unknown
5806 #define TARGET_PAGESIZE 1
5807 #define TARGET_BIG_ENDIAN 1
5808 #define TARGET_ARCHIVE 1
5809 #define TARGET_PRIORITY 0
5811 #include "mach-o-target.c"
5814 #undef TARGET_STRING
5815 #undef TARGET_ARCHITECTURE
5816 #undef TARGET_PAGESIZE
5817 #undef TARGET_BIG_ENDIAN
5818 #undef TARGET_ARCHIVE
5819 #undef TARGET_PRIORITY