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;
1356 /* An external symbol number. */
1359 else if (num == 0x00ffffff || num == 0)
1361 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1362 is generic code, we don't know wether this is really a PAIR.
1363 This value is almost certainly not a valid section number, hence
1364 this specific case to avoid an assertion failure.
1365 Target specific swap_reloc_in routine should adjust that. */
1366 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1370 /* PR 17512: file: 006-2964-0.004. */
1371 if (num > mdata->nsects)
1374 /* A section number. */
1375 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1376 /* For a symbol defined in section S, the addend (stored in the
1377 binary) contains the address of the section. To comply with
1378 bfd convention, subtract the section address.
1379 Use the address from the header, so that the user can modify
1380 the vma of the section. */
1381 res->addend = -mdata->sections[num - 1]->addr;
1383 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1384 in the lower 16bits of the address value. So we have to find the
1385 'symbol' from the preceding reloc. We do this even though the
1386 section symbol is probably not needed here, because NULL symbol
1387 values cause an assert in generic BFD code. This must be done in
1388 the PPC swap_reloc_in routine. */
1389 res->sym_ptr_ptr = sym;
1391 /* The 'address' is just r_address.
1392 ??? maybe this should be masked with 0xffffff for safety. */
1393 res->address = addr;
1394 reloc.r_address = addr;
1397 /* We have set up a reloc with all the information present, so the swapper
1398 can modify address, value and addend fields, if necessary, to convey
1399 information in the generic BFD reloc that is mach-o specific. */
1401 if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc))
1408 bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1409 unsigned long count,
1410 arelent *res, asymbol **syms)
1413 struct mach_o_reloc_info_external *native_relocs;
1414 bfd_size_type native_size;
1416 /* Allocate and read relocs. */
1417 native_size = count * BFD_MACH_O_RELENT_SIZE;
1420 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
1421 if (native_relocs == NULL)
1424 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
1425 || bfd_bread (native_relocs, native_size, abfd) != native_size)
1428 for (i = 0; i < count; i++)
1430 if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i],
1434 free (native_relocs);
1437 free (native_relocs);
1442 bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1443 arelent **rels, asymbol **syms)
1445 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1449 if (asect->reloc_count == 0)
1452 /* No need to go further if we don't know how to read relocs. */
1453 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1456 if (asect->relocation == NULL)
1458 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1462 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1463 asect->reloc_count, res, syms) < 0)
1468 asect->relocation = res;
1471 res = asect->relocation;
1472 for (i = 0; i < asect->reloc_count; i++)
1480 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1482 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1484 if (mdata->dysymtab == NULL)
1486 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
1487 * sizeof (arelent *);
1491 bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1492 struct bfd_symbol **syms)
1494 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1495 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1496 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1500 if (dysymtab == NULL)
1502 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1505 /* No need to go further if we don't know how to read relocs. */
1506 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1509 if (mdata->dyn_reloc_cache == NULL)
1511 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1512 * sizeof (arelent));
1516 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1517 dysymtab->nextrel, res, syms) < 0)
1523 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1525 res + dysymtab->nextrel, syms) < 0)
1531 mdata->dyn_reloc_cache = res;
1534 res = mdata->dyn_reloc_cache;
1535 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1541 /* In addition to the need to byte-swap the symbol number, the bit positions
1542 of the fields in the relocation information vary per target endian-ness. */
1545 bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
1546 bfd_mach_o_reloc_info *rel)
1548 unsigned char info = 0;
1550 BFD_ASSERT (rel->r_type <= 15);
1551 BFD_ASSERT (rel->r_length <= 3);
1553 if (bfd_big_endian (abfd))
1555 fields[0] = (rel->r_value >> 16) & 0xff;
1556 fields[1] = (rel->r_value >> 8) & 0xff;
1557 fields[2] = rel->r_value & 0xff;
1558 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1559 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1560 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1561 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1565 fields[2] = (rel->r_value >> 16) & 0xff;
1566 fields[1] = (rel->r_value >> 8) & 0xff;
1567 fields[0] = rel->r_value & 0xff;
1568 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1569 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1570 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1571 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1577 bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
1582 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1584 sec = section->bfdsection;
1585 if (sec->reloc_count == 0)
1588 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1591 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1594 /* Convert and write. */
1595 entries = section->bfdsection->orelocation;
1596 for (i = 0; i < section->nreloc; i++)
1598 arelent *rel = entries[i];
1599 struct mach_o_reloc_info_external raw;
1600 bfd_mach_o_reloc_info info, *pinfo = &info;
1602 /* Convert relocation to an intermediate representation. */
1603 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1606 /* Lower the relocation info. */
1607 if (pinfo->r_scattered)
1611 v = BFD_MACH_O_SR_SCATTERED
1612 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1613 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1614 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1615 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
1616 /* Note: scattered relocs have field in reverse order... */
1617 bfd_put_32 (abfd, v, raw.r_address);
1618 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1622 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1623 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
1627 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
1628 != BFD_MACH_O_RELENT_SIZE)
1635 bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
1637 struct mach_o_section_32_external raw;
1639 memcpy (raw.sectname, section->sectname, 16);
1640 memcpy (raw.segname, section->segname, 16);
1641 bfd_h_put_32 (abfd, section->addr, raw.addr);
1642 bfd_h_put_32 (abfd, section->size, raw.size);
1643 bfd_h_put_32 (abfd, section->offset, raw.offset);
1644 bfd_h_put_32 (abfd, section->align, raw.align);
1645 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1646 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1647 bfd_h_put_32 (abfd, section->flags, raw.flags);
1648 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1649 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1651 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
1652 != BFD_MACH_O_SECTION_SIZE)
1659 bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
1661 struct mach_o_section_64_external raw;
1663 memcpy (raw.sectname, section->sectname, 16);
1664 memcpy (raw.segname, section->segname, 16);
1665 bfd_h_put_64 (abfd, section->addr, raw.addr);
1666 bfd_h_put_64 (abfd, section->size, raw.size);
1667 bfd_h_put_32 (abfd, section->offset, raw.offset);
1668 bfd_h_put_32 (abfd, section->align, raw.align);
1669 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1670 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1671 bfd_h_put_32 (abfd, section->flags, raw.flags);
1672 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1673 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1674 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1676 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
1677 != BFD_MACH_O_SECTION_64_SIZE)
1684 bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1686 struct mach_o_segment_command_32_external raw;
1687 bfd_mach_o_segment_command *seg = &command->command.segment;
1688 bfd_mach_o_section *sec;
1690 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1692 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1693 if (!bfd_mach_o_write_relocs (abfd, sec))
1696 memcpy (raw.segname, seg->segname, 16);
1697 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1698 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1699 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1700 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1701 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1702 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1703 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1704 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1706 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1707 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1710 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1711 if (!bfd_mach_o_write_section_32 (abfd, sec))
1718 bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1720 struct mach_o_segment_command_64_external raw;
1721 bfd_mach_o_segment_command *seg = &command->command.segment;
1722 bfd_mach_o_section *sec;
1724 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1726 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1727 if (!bfd_mach_o_write_relocs (abfd, sec))
1730 memcpy (raw.segname, seg->segname, 16);
1731 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1732 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1733 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1734 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1735 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1736 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1737 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1738 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1740 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1741 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1744 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1745 if (!bfd_mach_o_write_section_64 (abfd, sec))
1752 bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
1754 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1756 unsigned int wide = bfd_mach_o_wide_p (abfd);
1757 struct bfd_strtab_hash *strtab;
1758 asymbol **symbols = bfd_get_outsymbols (abfd);
1761 /* Write the symbols first. */
1762 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1765 strtab = _bfd_stringtab_init ();
1770 /* Although we don't strictly need to do this, for compatibility with
1771 Darwin system tools, actually output an empty string for the index
1773 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1775 for (i = 0; i < sym->nsyms; i++)
1777 bfd_size_type str_index;
1778 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1780 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
1781 /* An index of 0 always means the empty string. */
1785 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
1787 if (str_index == (bfd_size_type) -1)
1793 struct mach_o_nlist_64_external raw;
1795 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1796 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1797 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1798 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1799 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1802 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1807 struct mach_o_nlist_external raw;
1809 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1810 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1811 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1812 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1813 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1816 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1820 sym->strsize = _bfd_stringtab_size (strtab);
1821 sym->stroff = mdata->filelen;
1822 mdata->filelen += sym->strsize;
1824 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
1827 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
1829 _bfd_stringtab_free (strtab);
1831 /* Pad string table. */
1832 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
1835 mdata->filelen += padlen;
1836 sym->strsize += padlen;
1841 _bfd_stringtab_free (strtab);
1846 bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1848 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1849 struct mach_o_symtab_command_external raw;
1851 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1854 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1855 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1856 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1857 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1859 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1860 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1866 /* Count the number of indirect symbols in the image.
1867 Requires that the sections are in their final order. */
1870 bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
1873 unsigned int nisyms = 0;
1875 for (i = 0; i < mdata->nsects; ++i)
1877 bfd_mach_o_section *sec = mdata->sections[i];
1879 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1881 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1882 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1883 case BFD_MACH_O_S_SYMBOL_STUBS:
1884 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1893 /* Create the dysymtab. */
1896 bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
1898 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1901 We are not going to try and fill these in yet and, moreover, we are
1902 going to bail if they are already set. */
1903 if (cmd->nmodtab != 0
1905 || cmd->nextrefsyms != 0)
1907 (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet"
1908 " implemented for dysymtab commands."));
1914 if (bfd_get_symcount (abfd) > 0)
1916 asymbol **symbols = bfd_get_outsymbols (abfd);
1919 /* Count the number of each kind of symbol. */
1920 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1922 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1923 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
1927 cmd->iextdefsym = i;
1928 for (; i < bfd_get_symcount (abfd); ++i)
1930 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1931 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
1934 cmd->nextdefsym = i - cmd->nlocalsym;
1935 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
1936 cmd->nundefsym = bfd_get_symcount (abfd)
1943 cmd->iextdefsym = 0;
1944 cmd->nextdefsym = 0;
1949 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
1950 if (cmd->nindirectsyms > 0)
1955 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
1956 cmd->indirectsymoff = mdata->filelen;
1957 mdata->filelen += cmd->nindirectsyms * 4;
1959 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
1960 if (cmd->indirect_syms == NULL)
1964 for (i = 0; i < mdata->nsects; ++i)
1966 bfd_mach_o_section *sec = mdata->sections[i];
1968 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1970 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1971 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1972 case BFD_MACH_O_S_SYMBOL_STUBS:
1975 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
1977 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1978 if (isyms == NULL || num == 0)
1980 /* Record the starting index in the reserved1 field. */
1982 for (j = 0; j < num; j++, n++)
1984 if (isyms[j] == NULL)
1985 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
1986 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
1987 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
1988 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
1989 | BFD_MACH_O_INDIRECT_SYM_ABS;
1991 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
2004 /* Write a dysymtab command.
2005 TODO: Possibly coalesce writes of smaller objects. */
2008 bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2010 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2012 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2014 if (cmd->nmodtab != 0)
2018 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2021 for (i = 0; i < cmd->nmodtab; i++)
2023 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2027 iinit = module->iinit & 0xffff;
2028 iinit |= ((module->iterm & 0xffff) << 16);
2030 ninit = module->ninit & 0xffff;
2031 ninit |= ((module->nterm & 0xffff) << 16);
2033 if (bfd_mach_o_wide_p (abfd))
2035 struct mach_o_dylib_module_64_external w;
2037 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2038 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2039 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2040 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2041 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2042 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2043 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2044 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2045 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2046 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2047 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2048 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2049 &w.objc_module_info_addr);
2050 bfd_h_put_32 (abfd, module->objc_module_info_size,
2051 &w.objc_module_info_size);
2053 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2058 struct mach_o_dylib_module_external n;
2060 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2061 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2062 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2063 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2064 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2065 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2066 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2067 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2068 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2069 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2070 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2071 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2072 &n.objc_module_info_addr);
2073 bfd_h_put_32 (abfd, module->objc_module_info_size,
2074 &n.objc_module_info_size);
2076 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2086 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2089 for (i = 0; i < cmd->ntoc; i++)
2091 struct mach_o_dylib_table_of_contents_external raw;
2092 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2094 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2095 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2097 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2102 if (cmd->nindirectsyms > 0)
2106 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2109 for (i = 0; i < cmd->nindirectsyms; ++i)
2111 unsigned char raw[4];
2113 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2114 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2119 if (cmd->nextrefsyms != 0)
2123 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2126 for (i = 0; i < cmd->nextrefsyms; i++)
2129 unsigned char raw[4];
2130 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2132 /* Fields isym and flags are written as bit-fields, thus we need
2133 a specific processing for endianness. */
2135 if (bfd_big_endian (abfd))
2137 v = ((ref->isym & 0xffffff) << 8);
2138 v |= ref->flags & 0xff;
2142 v = ref->isym & 0xffffff;
2143 v |= ((ref->flags & 0xff) << 24);
2146 bfd_h_put_32 (abfd, v, raw);
2147 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2153 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2157 struct mach_o_dysymtab_command_external raw;
2159 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2160 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2161 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2162 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2163 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2164 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2165 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2166 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2167 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2168 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2169 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2170 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2171 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2172 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2173 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2174 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2175 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2176 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2178 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2186 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
2188 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
2190 /* Just leave debug symbols where they are (pretend they are local, and
2191 then they will just be sorted on position). */
2192 if (s->n_type & BFD_MACH_O_N_STAB)
2195 /* Local (we should never see an undefined local AFAICT). */
2196 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
2199 /* Common symbols look like undefined externs. */
2200 if (mtyp == BFD_MACH_O_N_UNDF)
2203 /* A defined non-local, non-debug symbol. */
2208 bfd_mach_o_cf_symbols (const void *a, const void *b)
2210 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2211 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2212 unsigned int soa, sob;
2214 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2215 sob = bfd_mach_o_primary_symbol_sort_key (sb);
2222 /* If it's local or stab, just preserve the input order. */
2225 if (sa->symbol.udata.i < sb->symbol.udata.i)
2227 if (sa->symbol.udata.i > sb->symbol.udata.i)
2230 /* This is probably an error. */
2234 /* The second sort key is name. */
2235 return strcmp (sa->symbol.name, sb->symbol.name);
2238 /* Process the symbols.
2240 This should be OK for single-module files - but it is not likely to work
2241 for multi-module shared libraries.
2243 (a) If the application has not filled in the relevant mach-o fields, make
2246 (b) Order them, like this:
2249 ( ii) external defined
2251 (iii) external undefined/common
2258 bfd_mach_o_mangle_symbols (bfd *abfd)
2261 asymbol **symbols = bfd_get_outsymbols (abfd);
2263 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2266 for (i = 0; i < bfd_get_symcount (abfd); i++)
2268 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2270 /* We use this value, which is out-of-range as a symbol index, to signal
2271 that the mach-o-specific data are not filled in and need to be created
2272 from the bfd values. It is much preferable for the application to do
2273 this, since more meaningful diagnostics can be made that way. */
2275 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
2277 /* No symbol information has been set - therefore determine
2278 it from the bfd symbol flags/info. */
2279 if (s->symbol.section == bfd_abs_section_ptr)
2280 s->n_type = BFD_MACH_O_N_ABS;
2281 else if (s->symbol.section == bfd_und_section_ptr)
2283 s->n_type = BFD_MACH_O_N_UNDF;
2284 if (s->symbol.flags & BSF_WEAK)
2285 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
2286 /* mach-o automatically makes undefined symbols extern. */
2287 s->n_type |= BFD_MACH_O_N_EXT;
2288 s->symbol.flags |= BSF_GLOBAL;
2290 else if (s->symbol.section == bfd_com_section_ptr)
2292 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2293 s->symbol.flags |= BSF_GLOBAL;
2296 s->n_type = BFD_MACH_O_N_SECT;
2298 if (s->symbol.flags & BSF_GLOBAL)
2299 s->n_type |= BFD_MACH_O_N_EXT;
2302 /* Put the section index in, where required. */
2303 if ((s->symbol.section != bfd_abs_section_ptr
2304 && s->symbol.section != bfd_und_section_ptr
2305 && s->symbol.section != bfd_com_section_ptr)
2306 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2307 && s->symbol.name == NULL))
2308 s->n_sect = s->symbol.section->output_section->target_index;
2310 /* Number to preserve order for local and debug syms. */
2311 s->symbol.udata.i = i;
2314 /* Sort the symbols. */
2315 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2316 sizeof (asymbol *), bfd_mach_o_cf_symbols);
2318 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2320 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2321 s->symbol.udata.i = i; /* renumber. */
2327 /* We build a flat table of sections, which can be re-ordered if necessary.
2328 Fill in the section number and other mach-o-specific data. */
2331 bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2334 unsigned target_index;
2337 nsect = bfd_count_sections (abfd);
2339 /* Don't do it if it's already set - assume the application knows what it's
2341 if (mdata->nsects == nsect
2342 && (mdata->nsects == 0 || mdata->sections != NULL))
2345 /* We need to check that this can be done... */
2348 (*_bfd_error_handler) (_("mach-o: there are too many sections (%u)"
2349 " maximum is 255,\n"), nsect);
2353 mdata->nsects = nsect;
2354 mdata->sections = bfd_alloc (abfd,
2355 mdata->nsects * sizeof (bfd_mach_o_section *));
2356 if (mdata->sections == NULL)
2359 /* Create Mach-O sections.
2360 Section type, attribute and align should have been set when the
2361 section was created - either read in or specified. */
2363 for (sec = abfd->sections; sec; sec = sec->next)
2365 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2366 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2368 mdata->sections[target_index] = msect;
2370 msect->addr = bfd_get_section_vma (abfd, sec);
2371 msect->size = bfd_get_section_size (sec);
2373 /* Use the largest alignment set, in case it was bumped after the
2374 section was created. */
2375 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2378 sec->target_index = ++target_index;
2385 bfd_mach_o_write_contents (bfd *abfd)
2387 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2388 bfd_mach_o_load_command *cmd;
2389 bfd_mach_o_symtab_command *symtab = NULL;
2390 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2391 bfd_mach_o_segment_command *linkedit = NULL;
2393 /* Make the commands, if not already present. */
2394 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2396 abfd->output_has_begun = TRUE;
2398 /* Write the header. */
2399 if (!bfd_mach_o_write_header (abfd, &mdata->header))
2402 /* First pass: allocate the linkedit segment. */
2403 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2406 case BFD_MACH_O_LC_SEGMENT_64:
2407 case BFD_MACH_O_LC_SEGMENT:
2408 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2409 linkedit = &cmd->command.segment;
2411 case BFD_MACH_O_LC_SYMTAB:
2412 symtab = &cmd->command.symtab;
2414 case BFD_MACH_O_LC_DYSYMTAB:
2415 dysymtab = &cmd->command.dysymtab;
2417 case BFD_MACH_O_LC_DYLD_INFO:
2419 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2421 if (di->rebase_size != 0)
2423 di->rebase_off = mdata->filelen;
2424 mdata->filelen += di->rebase_size;
2426 if (di->bind_size != 0)
2428 di->bind_off = mdata->filelen;
2429 mdata->filelen += di->bind_size;
2431 if (di->weak_bind_size != 0)
2433 di->weak_bind_off = mdata->filelen;
2434 mdata->filelen += di->weak_bind_size;
2436 if (di->lazy_bind_size != 0)
2438 di->lazy_bind_off = mdata->filelen;
2439 mdata->filelen += di->lazy_bind_size;
2441 if (di->export_size != 0)
2443 di->export_off = mdata->filelen;
2444 mdata->filelen += di->export_size;
2448 case BFD_MACH_O_LC_LOAD_DYLIB:
2449 case BFD_MACH_O_LC_LOAD_DYLINKER:
2450 case BFD_MACH_O_LC_MAIN:
2451 /* Nothing to do. */
2454 (*_bfd_error_handler)
2455 (_("unable to allocate data for load command 0x%lx"),
2456 (unsigned long) cmd->type);
2460 /* Specially handle symtab and dysymtab. */
2462 /* Pre-allocate the symbol table (but not the string table). The reason
2463 is that the dysymtab is after the symbol table but before the string
2464 table (required by the native strip tool). */
2467 unsigned int symlen;
2468 unsigned int wide = bfd_mach_o_wide_p (abfd);
2470 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2472 /* Align for symbols. */
2473 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2474 symtab->symoff = mdata->filelen;
2476 symtab->nsyms = bfd_get_symcount (abfd);
2477 mdata->filelen += symtab->nsyms * symlen;
2480 /* Build the dysymtab. */
2481 if (dysymtab != NULL)
2482 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2485 /* Write symtab and strtab. */
2487 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2490 /* Adjust linkedit size. */
2491 if (linkedit != NULL)
2493 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2495 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2496 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2497 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2499 linkedit->initprot = BFD_MACH_O_PROT_READ;
2500 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2501 | BFD_MACH_O_PROT_EXECUTE;
2504 /* Second pass: write commands. */
2505 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2507 struct mach_o_load_command_external raw;
2508 unsigned long typeflag;
2510 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
2512 bfd_h_put_32 (abfd, typeflag, raw.cmd);
2513 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
2515 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
2516 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
2521 case BFD_MACH_O_LC_SEGMENT:
2522 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
2525 case BFD_MACH_O_LC_SEGMENT_64:
2526 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
2529 case BFD_MACH_O_LC_SYMTAB:
2530 if (!bfd_mach_o_write_symtab (abfd, cmd))
2533 case BFD_MACH_O_LC_DYSYMTAB:
2534 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
2537 case BFD_MACH_O_LC_THREAD:
2538 case BFD_MACH_O_LC_UNIXTHREAD:
2539 if (!bfd_mach_o_write_thread (abfd, cmd))
2542 case BFD_MACH_O_LC_LOAD_DYLIB:
2543 if (!bfd_mach_o_write_dylib (abfd, cmd))
2546 case BFD_MACH_O_LC_LOAD_DYLINKER:
2547 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2550 case BFD_MACH_O_LC_MAIN:
2551 if (!bfd_mach_o_write_main (abfd, cmd))
2554 case BFD_MACH_O_LC_DYLD_INFO:
2555 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2559 (*_bfd_error_handler)
2560 (_("unable to write unknown load command 0x%lx"),
2561 (unsigned long) cmd->type);
2570 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
2571 bfd_mach_o_section *s)
2573 if (seg->sect_head == NULL)
2576 seg->sect_tail->next = s;
2580 /* Create section Mach-O flags from BFD flags. */
2583 bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2587 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2589 /* Create default flags. */
2590 bfd_flags = bfd_get_section_flags (abfd, sec);
2591 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2592 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2593 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2594 | BFD_MACH_O_S_REGULAR;
2595 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2596 s->flags = BFD_MACH_O_S_ZEROFILL;
2597 else if (bfd_flags & SEC_DEBUGGING)
2598 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2600 s->flags = BFD_MACH_O_S_REGULAR;
2604 bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2606 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2610 seg->fileoff = mdata->filelen;
2611 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2612 | BFD_MACH_O_PROT_EXECUTE;
2613 seg->maxprot = seg->initprot;
2615 /* Append sections to the segment.
2617 This is a little tedious, we have to honor the need to account zerofill
2618 sections after all the rest. This forces us to do the calculation of
2619 total vmsize in three passes so that any alignment increments are
2620 properly accounted. */
2621 for (i = 0; i < mdata->nsects; ++i)
2623 bfd_mach_o_section *s = mdata->sections[i];
2624 asection *sec = s->bfdsection;
2626 /* Although we account for zerofill section sizes in vm order, they are
2627 placed in the file in source sequence. */
2628 bfd_mach_o_append_section_to_segment (seg, s);
2631 /* Zerofill sections have zero file size & offset, the only content
2632 written to the file is the symbols. */
2633 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2634 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2635 == BFD_MACH_O_S_GB_ZEROFILL))
2638 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2639 sections, even those with zero size. */
2642 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2643 seg->vmsize += s->size;
2645 /* MH_OBJECT files have unaligned content. */
2648 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2649 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2651 seg->filesize += s->size;
2653 /* The system tools write even zero-sized sections with an offset
2654 field set to the current file position. */
2655 s->offset = mdata->filelen;
2658 sec->filepos = s->offset;
2659 mdata->filelen += s->size;
2662 /* Now pass through again, for zerofill, only now we just update the
2663 vmsize, and then for zerofill_GB. */
2664 for (j = 0; j < 2; j++)
2669 stype = BFD_MACH_O_S_ZEROFILL;
2671 stype = BFD_MACH_O_S_GB_ZEROFILL;
2673 for (i = 0; i < mdata->nsects; ++i)
2675 bfd_mach_o_section *s = mdata->sections[i];
2677 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2682 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2683 seg->vmsize += s->size;
2688 /* Allocate space for the relocations. */
2689 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2691 for (i = 0; i < mdata->nsects; ++i)
2693 bfd_mach_o_section *ms = mdata->sections[i];
2694 asection *sec = ms->bfdsection;
2696 ms->nreloc = sec->reloc_count;
2697 if (ms->nreloc == 0)
2699 /* Clear nreloc and reloff if there is no relocs. */
2703 sec->rel_filepos = mdata->filelen;
2704 ms->reloff = sec->rel_filepos;
2705 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2712 bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2714 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2716 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2718 bfd_mach_o_section *s;
2722 seg->fileoff = mdata->filelen;
2727 /* Append sections to the segment. We assume they are properly ordered
2728 by vma (but we check that). */
2730 for (i = 0; i < mdata->nsects; ++i)
2732 s = mdata->sections[i];
2734 /* Consider only sections for this segment. */
2735 if (strcmp (seg->segname, s->segname) != 0)
2738 bfd_mach_o_append_section_to_segment (seg, s);
2740 BFD_ASSERT (s->addr >= vma);
2741 vma = s->addr + s->size;
2744 /* Set segment file offset: make it page aligned. */
2745 vma = seg->sect_head->addr;
2746 seg->vmaddr = vma & ~pagemask;
2747 if ((mdata->filelen & pagemask) > (vma & pagemask))
2748 mdata->filelen += pagemask + 1;
2749 seg->fileoff = mdata->filelen & ~pagemask;
2750 mdata->filelen = seg->fileoff + (vma & pagemask);
2752 /* Set section file offset. */
2753 for (s = seg->sect_head; s != NULL; s = s->next)
2755 asection *sec = s->bfdsection;
2756 flagword flags = bfd_get_section_flags (abfd, sec);
2758 /* Adjust segment size. */
2759 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2760 seg->vmsize += s->size;
2762 /* File offset and length. */
2763 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2765 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2766 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2767 != BFD_MACH_O_S_GB_ZEROFILL))
2769 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2771 s->offset = mdata->filelen;
2772 s->bfdsection->filepos = s->offset;
2774 seg->filesize += s->size;
2775 mdata->filelen += s->size;
2780 s->bfdsection->filepos = 0;
2783 /* Set protection. */
2784 if (flags & SEC_LOAD)
2786 if (flags & SEC_CODE)
2787 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
2788 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
2789 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
2792 /* Relocs shouldn't appear in non-object files. */
2793 if (s->bfdsection->reloc_count != 0)
2798 if (seg->initprot != 0)
2799 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2800 | BFD_MACH_O_PROT_EXECUTE;
2804 /* Round segment size (and file size). */
2805 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
2806 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
2807 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
2812 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
2813 fields in header. */
2816 bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
2818 unsigned wide = mach_o_wide_p (&mdata->header);
2819 unsigned int hdrlen;
2821 bfd_mach_o_load_command *cmd;
2824 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2825 align = wide ? 8 - 1 : 4 - 1;
2827 mdata->header.ncmds = 0;
2829 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
2831 mdata->header.ncmds++;
2832 cmd->offset = offset;
2836 case BFD_MACH_O_LC_SEGMENT_64:
2837 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2838 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
2840 case BFD_MACH_O_LC_SEGMENT:
2841 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2842 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
2844 case BFD_MACH_O_LC_SYMTAB:
2845 cmd->len = sizeof (struct mach_o_symtab_command_external)
2846 + BFD_MACH_O_LC_SIZE;
2848 case BFD_MACH_O_LC_DYSYMTAB:
2849 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2850 + BFD_MACH_O_LC_SIZE;
2852 case BFD_MACH_O_LC_LOAD_DYLIB:
2853 cmd->len = sizeof (struct mach_o_dylib_command_external)
2854 + BFD_MACH_O_LC_SIZE;
2855 cmd->command.dylib.name_offset = cmd->len;
2856 cmd->len += strlen (cmd->command.dylib.name_str);
2857 cmd->len = (cmd->len + align) & ~align;
2859 case BFD_MACH_O_LC_LOAD_DYLINKER:
2860 cmd->len = sizeof (struct mach_o_str_command_external)
2861 + BFD_MACH_O_LC_SIZE;
2862 cmd->command.dylinker.name_offset = cmd->len;
2863 cmd->len += strlen (cmd->command.dylinker.name_str);
2864 cmd->len = (cmd->len + align) & ~align;
2866 case BFD_MACH_O_LC_MAIN:
2867 cmd->len = sizeof (struct mach_o_entry_point_command_external)
2868 + BFD_MACH_O_LC_SIZE;
2870 case BFD_MACH_O_LC_DYLD_INFO:
2871 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
2872 + BFD_MACH_O_LC_SIZE;
2875 (*_bfd_error_handler)
2876 (_("unable to layout unknown load command 0x%lx"),
2877 (unsigned long) cmd->type);
2881 BFD_ASSERT (cmd->len % (align + 1) == 0);
2884 mdata->header.sizeofcmds = offset - hdrlen;
2885 mdata->filelen = offset;
2888 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
2892 bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
2893 bfd_mach_o_load_command *cmd,
2894 const char *segname, unsigned int nbr_sect)
2896 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2897 unsigned wide = mach_o_wide_p (&mdata->header);
2899 /* Init segment command. */
2900 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
2901 cmd->type_required = FALSE;
2903 strcpy (seg->segname, segname);
2904 seg->nsects = nbr_sect;
2914 seg->sect_head = NULL;
2915 seg->sect_tail = NULL;
2918 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2919 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2920 and copy functionality. */
2923 bfd_mach_o_build_commands (bfd *abfd)
2925 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2926 unsigned wide = mach_o_wide_p (&mdata->header);
2927 unsigned int nbr_segcmd = 0;
2928 bfd_mach_o_load_command *commands;
2929 unsigned int nbr_commands;
2930 int symtab_idx = -1;
2931 int dysymtab_idx = -1;
2935 /* Return now if already built. */
2936 if (mdata->header.ncmds != 0)
2939 /* Fill in the file type, if not already set. */
2940 if (mdata->header.filetype == 0)
2942 if (abfd->flags & EXEC_P)
2943 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2944 else if (abfd->flags & DYNAMIC)
2945 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2947 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
2950 /* If hasn't already been done, flatten sections list, and sort
2951 if/when required. Must be done before the symbol table is adjusted,
2952 since that depends on properly numbered sections. */
2953 if (mdata->nsects == 0 || mdata->sections == NULL)
2954 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2957 /* Order the symbol table, fill-in/check mach-o specific fields and
2958 partition out any indirect symbols. */
2959 if (!bfd_mach_o_mangle_symbols (abfd))
2962 /* Segment commands. */
2963 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
2965 /* Only one segment for all the sections. But the segment is
2966 optional if there is no sections. */
2967 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
2971 bfd_mach_o_section *prev_sect = NULL;
2973 /* One pagezero segment and one linkedit segment. */
2976 /* Create one segment for associated segment name in sections.
2977 Assume that sections with the same segment name are consecutive. */
2978 for (i = 0; i < mdata->nsects; i++)
2980 bfd_mach_o_section *this_sect = mdata->sections[i];
2982 if (prev_sect == NULL
2983 || strcmp (prev_sect->segname, this_sect->segname) != 0)
2986 prev_sect = this_sect;
2991 nbr_commands = nbr_segcmd;
2993 /* One command for the symbol table (only if there are symbols. */
2994 if (bfd_get_symcount (abfd) > 0)
2995 symtab_idx = nbr_commands++;
2998 This is a rather crude test for whether we should build a dysymtab. */
2999 if (bfd_mach_o_should_emit_dysymtab ()
3000 && bfd_get_symcount (abfd))
3002 /* If there should be a case where a dysymtab could be emitted without
3003 a symtab (seems improbable), this would need amending. */
3004 dysymtab_idx = nbr_commands++;
3007 /* Add an entry point command. */
3008 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3009 && bfd_get_start_address (abfd) != 0)
3010 main_idx = nbr_commands++;
3012 /* Well, we must have a header, at least. */
3013 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3015 /* A bit unusual, but no content is valid;
3016 as -n empty.s -o empty.o */
3017 if (nbr_commands == 0)
3019 /* Layout commands (well none...) and set headers command fields. */
3020 bfd_mach_o_layout_commands (mdata);
3024 /* Create commands for segments (and symtabs), prepend them. */
3025 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3026 if (commands == NULL)
3028 for (i = 0; i < nbr_commands - 1; i++)
3029 commands[i].next = &commands[i + 1];
3030 commands[nbr_commands - 1].next = mdata->first_command;
3031 if (mdata->first_command == NULL)
3032 mdata->last_command = &commands[nbr_commands - 1];
3033 mdata->first_command = &commands[0];
3035 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3037 /* For object file, there is only one segment. */
3038 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3040 else if (nbr_segcmd != 0)
3042 bfd_mach_o_load_command *cmd;
3044 BFD_ASSERT (nbr_segcmd >= 2);
3048 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3050 /* Segments from sections. */
3052 for (i = 0; i < mdata->nsects;)
3054 const char *segname = mdata->sections[i]->segname;
3055 unsigned int nbr_sect = 1;
3057 /* Count number of sections for this segment. */
3058 for (i++; i < mdata->nsects; i++)
3059 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3064 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3069 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
3072 if (symtab_idx >= 0)
3074 /* Init symtab command. */
3075 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
3077 cmd->type = BFD_MACH_O_LC_SYMTAB;
3078 cmd->type_required = FALSE;
3081 /* If required, setup symtab command, see comment above about the quality
3083 if (dysymtab_idx >= 0)
3085 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
3087 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
3088 cmd->type_required = FALSE;
3091 /* Create the main command. */
3094 bfd_mach_o_load_command *cmd = &commands[main_idx];
3096 cmd->type = BFD_MACH_O_LC_MAIN;
3097 cmd->type_required = TRUE;
3099 cmd->command.main.entryoff = 0;
3100 cmd->command.main.stacksize = 0;
3103 /* Layout commands. */
3104 bfd_mach_o_layout_commands (mdata);
3106 /* So, now we have sized the commands and the filelen set to that.
3107 Now we can build the segment command and set the section file offsets. */
3108 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3110 for (i = 0; i < nbr_segcmd; i++)
3111 if (!bfd_mach_o_build_obj_seg_command
3112 (abfd, &commands[i].command.segment))
3119 /* Skip pagezero and linkedit segments. */
3120 for (i = 1; i < nbr_segcmd - 1; i++)
3122 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3124 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3127 if (seg->vmaddr + seg->vmsize > maxvma)
3128 maxvma = seg->vmaddr + seg->vmsize;
3131 /* Set the size of __PAGEZERO. */
3132 commands[0].command.segment.vmsize =
3133 commands[1].command.segment.vmaddr;
3135 /* Set the vma and fileoff of __LINKEDIT. */
3136 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3137 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3139 /* Set entry point (once segments have been laid out). */
3141 commands[main_idx].command.main.entryoff =
3142 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3148 /* Set the contents of a section. */
3151 bfd_mach_o_set_section_contents (bfd *abfd,
3153 const void * location,
3155 bfd_size_type count)
3159 /* Trying to write the first section contents will trigger the creation of
3160 the load commands if they are not already present. */
3161 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
3167 pos = section->filepos + offset;
3168 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3169 || bfd_bwrite (location, count, abfd) != count)
3176 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
3177 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3182 /* Make an empty symbol. This is required only because
3183 bfd_make_section_anyway wants to create a symbol for the section. */
3186 bfd_mach_o_make_empty_symbol (bfd *abfd)
3188 asymbol *new_symbol;
3190 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3191 if (new_symbol == NULL)
3193 new_symbol->the_bfd = abfd;
3194 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
3199 bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
3201 struct mach_o_header_external raw;
3203 bfd_vma (*get32) (const void *) = NULL;
3205 /* Just read the magic number. */
3206 if (bfd_seek (abfd, 0, SEEK_SET) != 0
3207 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
3210 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3212 header->byteorder = BFD_ENDIAN_BIG;
3213 header->magic = BFD_MACH_O_MH_MAGIC;
3214 header->version = 1;
3217 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3219 header->byteorder = BFD_ENDIAN_LITTLE;
3220 header->magic = BFD_MACH_O_MH_MAGIC;
3221 header->version = 1;
3224 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3226 header->byteorder = BFD_ENDIAN_BIG;
3227 header->magic = BFD_MACH_O_MH_MAGIC_64;
3228 header->version = 2;
3231 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3233 header->byteorder = BFD_ENDIAN_LITTLE;
3234 header->magic = BFD_MACH_O_MH_MAGIC_64;
3235 header->version = 2;
3240 header->byteorder = BFD_ENDIAN_UNKNOWN;
3244 /* Once the size of the header is known, read the full header. */
3245 size = mach_o_wide_p (header) ?
3246 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3248 if (bfd_seek (abfd, 0, SEEK_SET) != 0
3249 || bfd_bread (&raw, size, abfd) != size)
3252 header->cputype = (*get32) (raw.cputype);
3253 header->cpusubtype = (*get32) (raw.cpusubtype);
3254 header->filetype = (*get32) (raw.filetype);
3255 header->ncmds = (*get32) (raw.ncmds);
3256 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3257 header->flags = (*get32) (raw.flags);
3259 if (mach_o_wide_p (header))
3260 header->reserved = (*get32) (raw.reserved);
3262 header->reserved = 0;
3268 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3270 bfd_mach_o_section *s;
3271 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
3273 s = bfd_mach_o_get_mach_o_section (sec);
3277 static const mach_o_section_name_xlat * xlat;
3279 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3282 sec->used_by_bfd = s;
3283 s->bfdsection = sec;
3285 /* Create the Darwin seg/sect name pair from the bfd name.
3286 If this is a canonical name for which a specific paiting exists
3287 there will also be defined flags, type, attribute and alignment
3289 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3292 s->flags = xlat->macho_sectype | xlat->macho_secattr;
3293 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
3295 (void) bfd_set_section_alignment (abfd, sec, s->align);
3296 bfd_flags = bfd_get_section_flags (abfd, sec);
3297 if (bfd_flags == SEC_NO_FLAGS)
3298 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3301 /* Create default flags. */
3302 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
3305 return _bfd_generic_new_section_hook (abfd, sec);
3309 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3313 bfd_mach_o_section *section;
3315 flags = bfd_get_section_flags (abfd, sec);
3316 section = bfd_mach_o_get_mach_o_section (sec);
3318 /* TODO: see if we should use the xlat system for doing this by
3319 preference and fall back to this for unknown sections. */
3321 if (flags == SEC_NO_FLAGS)
3323 /* Try to guess flags. */
3324 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3325 flags = SEC_DEBUGGING;
3329 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3330 != BFD_MACH_O_S_ZEROFILL)
3333 if (prot & BFD_MACH_O_PROT_EXECUTE)
3335 if (prot & BFD_MACH_O_PROT_WRITE)
3337 else if (prot & BFD_MACH_O_PROT_READ)
3338 flags |= SEC_READONLY;
3344 if ((flags & SEC_DEBUGGING) == 0)
3348 if (section->offset != 0)
3349 flags |= SEC_HAS_CONTENTS;
3350 if (section->nreloc != 0)
3353 bfd_set_section_flags (abfd, sec, flags);
3355 sec->vma = section->addr;
3356 sec->lma = section->addr;
3357 sec->size = section->size;
3358 sec->filepos = section->offset;
3359 sec->alignment_power = section->align;
3360 sec->segment_mark = 0;
3361 sec->reloc_count = section->nreloc;
3362 sec->rel_filepos = section->reloff;
3366 bfd_mach_o_make_bfd_section (bfd *abfd,
3367 const unsigned char *segname,
3368 const unsigned char *sectname)
3373 bfd_mach_o_convert_section_name_to_bfd
3374 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3378 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3382 bfd_mach_o_read_section_32 (bfd *abfd,
3383 unsigned int offset,
3386 struct mach_o_section_32_external raw;
3388 bfd_mach_o_section *section;
3390 if (bfd_seek (abfd, offset, SEEK_SET) != 0
3391 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3392 != BFD_MACH_O_SECTION_SIZE))
3395 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3399 section = bfd_mach_o_get_mach_o_section (sec);
3400 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3401 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3402 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3403 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3404 section->addr = bfd_h_get_32 (abfd, raw.addr);
3405 section->size = bfd_h_get_32 (abfd, raw.size);
3406 section->offset = bfd_h_get_32 (abfd, raw.offset);
3407 section->align = bfd_h_get_32 (abfd, raw.align);
3408 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3409 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3410 section->flags = bfd_h_get_32 (abfd, raw.flags);
3411 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3412 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3413 section->reserved3 = 0;
3415 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3421 bfd_mach_o_read_section_64 (bfd *abfd,
3422 unsigned int offset,
3425 struct mach_o_section_64_external raw;
3427 bfd_mach_o_section *section;
3429 if (bfd_seek (abfd, offset, SEEK_SET) != 0
3430 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3431 != BFD_MACH_O_SECTION_64_SIZE))
3434 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3438 section = bfd_mach_o_get_mach_o_section (sec);
3439 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3440 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3441 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3442 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3443 section->addr = bfd_h_get_64 (abfd, raw.addr);
3444 section->size = bfd_h_get_64 (abfd, raw.size);
3445 section->offset = bfd_h_get_32 (abfd, raw.offset);
3446 section->align = bfd_h_get_32 (abfd, raw.align);
3447 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3448 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3449 section->flags = bfd_h_get_32 (abfd, raw.flags);
3450 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3451 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3452 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3454 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3460 bfd_mach_o_read_section (bfd *abfd,
3461 unsigned int offset,
3466 return bfd_mach_o_read_section_64 (abfd, offset, prot);
3468 return bfd_mach_o_read_section_32 (abfd, offset, prot);
3472 bfd_mach_o_read_symtab_symbol (bfd *abfd,
3473 bfd_mach_o_symtab_command *sym,
3474 bfd_mach_o_asymbol *s,
3477 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3478 unsigned int wide = mach_o_wide_p (&mdata->header);
3479 unsigned int symwidth =
3480 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
3481 unsigned int symoff = sym->symoff + (i * symwidth);
3482 struct mach_o_nlist_64_external raw;
3483 unsigned char type = -1;
3484 unsigned char section = -1;
3486 symvalue value = -1;
3487 unsigned long stroff = -1;
3488 unsigned int symtype = -1;
3490 BFD_ASSERT (sym->strtab != NULL);
3492 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
3493 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3495 (*_bfd_error_handler)
3496 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
3497 symwidth, (unsigned long) symoff);
3501 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3502 type = bfd_h_get_8 (abfd, raw.n_type);
3503 symtype = type & BFD_MACH_O_N_TYPE;
3504 section = bfd_h_get_8 (abfd, raw.n_sect);
3505 desc = bfd_h_get_16 (abfd, raw.n_desc);
3507 value = bfd_h_get_64 (abfd, raw.n_value);
3509 value = bfd_h_get_32 (abfd, raw.n_value);
3511 if (stroff >= sym->strsize)
3513 (*_bfd_error_handler)
3514 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
3515 (unsigned long) stroff,
3516 (unsigned long) sym->strsize);
3520 s->symbol.the_bfd = abfd;
3521 s->symbol.name = sym->strtab + stroff;
3522 s->symbol.value = value;
3523 s->symbol.flags = 0x0;
3524 s->symbol.udata.i = i;
3526 s->n_sect = section;
3529 if (type & BFD_MACH_O_N_STAB)
3531 s->symbol.flags |= BSF_DEBUGGING;
3532 s->symbol.section = bfd_und_section_ptr;
3544 if ((section > 0) && (section <= mdata->nsects))
3546 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3548 s->symbol.value - mdata->sections[section - 1]->addr;
3555 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
3556 s->symbol.flags |= BSF_GLOBAL;
3558 s->symbol.flags |= BSF_LOCAL;
3562 case BFD_MACH_O_N_UNDF:
3563 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3564 && s->symbol.value != 0)
3566 /* A common symbol. */
3567 s->symbol.section = bfd_com_section_ptr;
3568 s->symbol.flags = BSF_NO_FLAGS;
3572 s->symbol.section = bfd_und_section_ptr;
3573 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3574 s->symbol.flags |= BSF_WEAK;
3577 case BFD_MACH_O_N_PBUD:
3578 s->symbol.section = bfd_und_section_ptr;
3580 case BFD_MACH_O_N_ABS:
3581 s->symbol.section = bfd_abs_section_ptr;
3583 case BFD_MACH_O_N_SECT:
3584 if ((section > 0) && (section <= mdata->nsects))
3586 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3588 s->symbol.value - mdata->sections[section - 1]->addr;
3592 /* Mach-O uses 0 to mean "no section"; not an error. */
3595 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3596 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
3597 s->symbol.name, section, mdata->nsects);
3599 s->symbol.section = bfd_und_section_ptr;
3602 case BFD_MACH_O_N_INDR:
3603 /* FIXME: we don't follow the BFD convention as this indirect symbol
3604 won't be followed by the referenced one. This looks harmless
3605 unless we start using the linker. */
3606 s->symbol.flags |= BSF_INDIRECT;
3607 s->symbol.section = bfd_ind_section_ptr;
3608 s->symbol.value = 0;
3611 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3612 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
3613 s->symbol.name, symtype);
3614 s->symbol.section = bfd_und_section_ptr;
3623 bfd_mach_o_read_symtab_strtab (bfd *abfd)
3625 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3626 bfd_mach_o_symtab_command *sym = mdata->symtab;
3628 /* Fail if there is no symtab. */
3632 /* Success if already loaded. */
3636 if (abfd->flags & BFD_IN_MEMORY)
3638 struct bfd_in_memory *b;
3640 b = (struct bfd_in_memory *) abfd->iostream;
3642 if ((sym->stroff + sym->strsize) > b->size)
3644 bfd_set_error (bfd_error_file_truncated);
3647 sym->strtab = (char *) b->buffer + sym->stroff;
3651 sym->strtab = bfd_alloc (abfd, sym->strsize);
3652 if (sym->strtab == NULL)
3655 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
3656 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3658 /* PR 17512: file: 10888-1609-0.004. */
3659 bfd_release (abfd, sym->strtab);
3661 bfd_set_error (bfd_error_file_truncated);
3670 bfd_mach_o_read_symtab_symbols (bfd *abfd)
3672 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3673 bfd_mach_o_symtab_command *sym = mdata->symtab;
3676 if (sym == NULL || sym->symbols)
3677 /* Return now if there are no symbols or if already loaded. */
3680 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
3682 if (sym->symbols == NULL)
3684 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
3688 if (!bfd_mach_o_read_symtab_strtab (abfd))
3690 bfd_release (abfd, sym->symbols);
3691 sym->symbols = NULL;
3695 for (i = 0; i < sym->nsyms; i++)
3697 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3699 bfd_release (abfd, sym->symbols);
3700 sym->symbols = NULL;
3709 bfd_mach_o_i386_flavour_string (unsigned int flavour)
3711 switch ((int) flavour)
3713 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3714 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3715 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3716 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3717 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3718 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3719 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3720 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3721 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3722 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3723 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3724 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
3725 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3726 default: return "UNKNOWN";
3731 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3733 switch ((int) flavour)
3735 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3736 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3737 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3738 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3739 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3740 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3741 default: return "UNKNOWN";
3746 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3748 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
3749 struct mach_o_str_command_external raw;
3750 unsigned int nameoff;
3751 unsigned int namelen;
3753 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3754 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3757 nameoff = bfd_h_get_32 (abfd, raw.str);
3759 cmd->name_offset = nameoff;
3760 namelen = command->len - nameoff;
3761 nameoff += command->offset;
3762 cmd->name_str = bfd_alloc (abfd, namelen);
3763 if (cmd->name_str == NULL)
3765 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3766 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3772 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3774 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
3775 struct mach_o_dylib_command_external raw;
3776 unsigned int nameoff;
3777 unsigned int namelen;
3779 switch (command->type)
3781 case BFD_MACH_O_LC_LOAD_DYLIB:
3782 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3783 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3784 case BFD_MACH_O_LC_ID_DYLIB:
3785 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3786 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3793 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3794 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3797 nameoff = bfd_h_get_32 (abfd, raw.name);
3798 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3799 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3800 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3802 cmd->name_offset = command->offset + nameoff;
3803 namelen = command->len - nameoff;
3804 cmd->name_str = bfd_alloc (abfd, namelen);
3805 if (cmd->name_str == NULL)
3807 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3808 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3814 bfd_mach_o_read_prebound_dylib (bfd *abfd,
3815 bfd_mach_o_load_command *command)
3817 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
3818 struct mach_o_prebound_dylib_command_external raw;
3819 unsigned int nameoff;
3820 unsigned int modoff;
3821 unsigned int str_len;
3824 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3825 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3828 nameoff = bfd_h_get_32 (abfd, raw.name);
3829 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
3830 if (nameoff > command->len || modoff > command->len)
3833 str_len = command->len - sizeof (raw);
3834 str = bfd_alloc (abfd, str_len);
3837 if (bfd_bread (str, str_len, abfd) != str_len)
3840 cmd->name_offset = command->offset + nameoff;
3841 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
3842 cmd->linked_modules_offset = command->offset + modoff;
3844 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3845 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3850 bfd_mach_o_read_prebind_cksum (bfd *abfd,
3851 bfd_mach_o_load_command *command)
3853 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
3854 struct mach_o_prebind_cksum_command_external raw;
3856 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3857 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3860 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
3865 bfd_mach_o_read_twolevel_hints (bfd *abfd,
3866 bfd_mach_o_load_command *command)
3868 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
3869 struct mach_o_twolevel_hints_command_external raw;
3871 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3872 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3875 cmd->offset = bfd_get_32 (abfd, raw.offset);
3876 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
3881 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3883 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3884 struct mach_o_fvmlib_command_external raw;
3885 unsigned int nameoff;
3886 unsigned int namelen;
3888 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3889 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3892 nameoff = bfd_h_get_32 (abfd, raw.name);
3893 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3894 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3896 fvm->name_offset = command->offset + nameoff;
3897 namelen = command->len - nameoff;
3898 fvm->name_str = bfd_alloc (abfd, namelen);
3899 if (fvm->name_str == NULL)
3901 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3902 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
3908 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3910 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3911 bfd_mach_o_thread_command *cmd = &command->command.thread;
3912 unsigned int offset;
3913 unsigned int nflavours;
3916 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3917 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3919 /* Count the number of threads. */
3922 while (offset != command->len)
3924 struct mach_o_thread_command_external raw;
3926 if (offset >= command->len)
3929 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3930 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3933 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3937 /* Allocate threads. */
3938 cmd->flavours = bfd_alloc
3939 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3940 if (cmd->flavours == NULL)
3942 cmd->nflavours = nflavours;
3946 while (offset != command->len)
3948 struct mach_o_thread_command_external raw;
3950 if (offset >= command->len)
3953 if (nflavours >= cmd->nflavours)
3956 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3957 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3960 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3961 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3962 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3963 offset += cmd->flavours[nflavours].size + sizeof (raw);
3967 for (i = 0; i < nflavours; i++)
3970 unsigned int snamelen;
3972 const char *flavourstr;
3973 const char *prefix = "LC_THREAD";
3976 switch (mdata->header.cputype)
3978 case BFD_MACH_O_CPU_TYPE_POWERPC:
3979 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
3981 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3983 case BFD_MACH_O_CPU_TYPE_I386:
3984 case BFD_MACH_O_CPU_TYPE_X86_64:
3986 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3989 flavourstr = "UNKNOWN_ARCHITECTURE";
3993 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
3994 sname = bfd_alloc (abfd, snamelen);
4000 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4001 if (bfd_get_section_by_name (abfd, sname) == NULL)
4006 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
4010 bfdsec->size = cmd->flavours[i].size;
4011 bfdsec->filepos = cmd->flavours[i].offset;
4012 bfdsec->alignment_power = 0x0;
4014 cmd->section = bfdsec;
4021 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
4023 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
4024 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4026 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4029 struct mach_o_dysymtab_command_external raw;
4031 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4032 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4035 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4036 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4037 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4038 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4039 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4040 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4041 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4042 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4043 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4044 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4045 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4046 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4047 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4048 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4049 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4050 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4051 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4052 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4055 if (cmd->nmodtab != 0)
4058 int wide = bfd_mach_o_wide_p (abfd);
4059 unsigned int module_len = wide ? 56 : 52;
4062 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
4063 if (cmd->dylib_module == NULL)
4066 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
4069 for (i = 0; i < cmd->nmodtab; i++)
4071 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4073 unsigned char buf[56];
4075 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4078 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4079 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4080 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4081 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4082 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4083 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4084 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4085 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4086 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4087 v = bfd_h_get_32 (abfd, buf +36);
4088 module->iinit = v & 0xffff;
4089 module->iterm = (v >> 16) & 0xffff;
4090 v = bfd_h_get_32 (abfd, buf + 40);
4091 module->ninit = v & 0xffff;
4092 module->nterm = (v >> 16) & 0xffff;
4095 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4096 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4100 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4101 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4110 cmd->dylib_toc = bfd_alloc
4111 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
4112 if (cmd->dylib_toc == NULL)
4115 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
4118 for (i = 0; i < cmd->ntoc; i++)
4120 struct mach_o_dylib_table_of_contents_external raw;
4121 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4123 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4126 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4127 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4131 if (cmd->nindirectsyms != 0)
4135 cmd->indirect_syms = bfd_alloc
4136 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
4137 if (cmd->indirect_syms == NULL)
4140 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
4143 for (i = 0; i < cmd->nindirectsyms; i++)
4145 unsigned char raw[4];
4146 unsigned int *is = &cmd->indirect_syms[i];
4148 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4151 *is = bfd_h_get_32 (abfd, raw);
4155 if (cmd->nextrefsyms != 0)
4160 cmd->ext_refs = bfd_alloc
4161 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
4162 if (cmd->ext_refs == NULL)
4165 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
4168 for (i = 0; i < cmd->nextrefsyms; i++)
4170 unsigned char raw[4];
4171 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4173 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4176 /* Fields isym and flags are written as bit-fields, thus we need
4177 a specific processing for endianness. */
4178 v = bfd_h_get_32 (abfd, raw);
4179 if (bfd_big_endian (abfd))
4181 ref->isym = (v >> 8) & 0xffffff;
4182 ref->flags = v & 0xff;
4186 ref->isym = v & 0xffffff;
4187 ref->flags = (v >> 24) & 0xff;
4192 if (mdata->dysymtab)
4194 mdata->dysymtab = cmd;
4200 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
4202 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4203 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4204 struct mach_o_symtab_command_external raw;
4206 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4208 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4209 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4212 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4213 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4214 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4215 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
4216 symtab->symbols = NULL;
4217 symtab->strtab = NULL;
4219 if (symtab->nsyms != 0)
4220 abfd->flags |= HAS_SYMS;
4224 mdata->symtab = symtab;
4229 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
4231 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
4233 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4235 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4236 || bfd_bread (cmd->uuid, 16, abfd) != 16)
4243 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
4245 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
4246 struct mach_o_linkedit_data_command_external raw;
4248 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4249 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4252 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4253 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
4258 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
4260 bfd_mach_o_str_command *cmd = &command->command.str;
4261 struct mach_o_str_command_external raw;
4264 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4265 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4268 off = bfd_get_32 (abfd, raw.str);
4269 cmd->stroff = command->offset + off;
4270 cmd->str_len = command->len - off;
4271 cmd->str = bfd_alloc (abfd, cmd->str_len);
4272 if (cmd->str == NULL)
4274 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
4275 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
4280 static unsigned char *
4281 bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4285 buf = bfd_alloc (abfd, size);
4288 if (bfd_seek (abfd, off, SEEK_SET) != 0
4289 || bfd_bread (buf, size, abfd) != size)
4295 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4297 /* Read rebase content. */
4298 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4300 cmd->rebase_content =
4301 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4302 if (cmd->rebase_content == NULL)
4306 /* Read bind content. */
4307 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4310 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4311 if (cmd->bind_content == NULL)
4315 /* Read weak bind content. */
4316 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4318 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4319 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4320 if (cmd->weak_bind_content == NULL)
4324 /* Read lazy bind content. */
4325 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4327 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4328 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4329 if (cmd->lazy_bind_content == NULL)
4333 /* Read export content. */
4334 if (cmd->export_content == NULL && cmd->export_size != 0)
4336 cmd->export_content = bfd_mach_o_alloc_and_read
4337 (abfd, cmd->export_off, cmd->export_size);
4338 if (cmd->export_content == NULL)
4346 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
4348 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
4349 struct mach_o_dyld_info_command_external raw;
4351 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4352 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4355 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4356 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
4357 cmd->rebase_content = NULL;
4358 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4359 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
4360 cmd->bind_content = NULL;
4361 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4362 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
4363 cmd->weak_bind_content = NULL;
4364 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4365 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
4366 cmd->lazy_bind_content = NULL;
4367 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4368 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
4369 cmd->export_content = NULL;
4374 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4376 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4377 struct mach_o_version_min_command_external raw;
4380 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4381 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4384 ver = bfd_get_32 (abfd, raw.version);
4385 cmd->rel = ver >> 16;
4386 cmd->maj = ver >> 8;
4388 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4393 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4395 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4396 struct mach_o_encryption_info_command_external raw;
4398 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4399 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4402 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4403 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4404 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4409 bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4411 bfd_mach_o_main_command *cmd = &command->command.main;
4412 struct mach_o_entry_point_command_external raw;
4414 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4415 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4418 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4419 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4424 bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4426 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4427 struct mach_o_source_version_command_external raw;
4430 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4431 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4434 ver = bfd_get_64 (abfd, raw.version);
4435 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4436 generates warnings) in case of the host doesn't support 64 bit
4438 cmd->e = ver & 0x3ff;
4440 cmd->d = ver & 0x3ff;
4442 cmd->c = ver & 0x3ff;
4444 cmd->b = ver & 0x3ff;
4446 cmd->a = ver & 0xffffff;
4451 bfd_mach_o_read_segment (bfd *abfd,
4452 bfd_mach_o_load_command *command,
4455 bfd_mach_o_segment_command *seg = &command->command.segment;
4460 struct mach_o_segment_command_64_external raw;
4462 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
4464 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4465 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4468 memcpy (seg->segname, raw.segname, 16);
4469 seg->segname[16] = '\0';
4471 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4472 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4473 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4474 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4475 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4476 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4477 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4478 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4482 struct mach_o_segment_command_32_external raw;
4484 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4486 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4487 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4490 memcpy (seg->segname, raw.segname, 16);
4491 seg->segname[16] = '\0';
4493 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4494 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4495 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4496 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4497 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4498 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4499 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4500 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4502 seg->sect_head = NULL;
4503 seg->sect_tail = NULL;
4505 for (i = 0; i < seg->nsects; i++)
4511 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
4512 + (i * BFD_MACH_O_SECTION_64_SIZE);
4514 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
4515 + (i * BFD_MACH_O_SECTION_SIZE);
4517 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
4521 bfd_mach_o_append_section_to_segment
4522 (seg, bfd_mach_o_get_mach_o_section (sec));
4529 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
4531 return bfd_mach_o_read_segment (abfd, command, 0);
4535 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
4537 return bfd_mach_o_read_segment (abfd, command, 1);
4541 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
4543 struct mach_o_load_command_external raw;
4546 /* Read command type and length. */
4547 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
4548 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
4551 cmd = bfd_h_get_32 (abfd, raw.cmd);
4552 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4553 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4554 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
4556 switch (command->type)
4558 case BFD_MACH_O_LC_SEGMENT:
4559 if (!bfd_mach_o_read_segment_32 (abfd, command))
4562 case BFD_MACH_O_LC_SEGMENT_64:
4563 if (!bfd_mach_o_read_segment_64 (abfd, command))
4566 case BFD_MACH_O_LC_SYMTAB:
4567 if (!bfd_mach_o_read_symtab (abfd, command))
4570 case BFD_MACH_O_LC_SYMSEG:
4572 case BFD_MACH_O_LC_THREAD:
4573 case BFD_MACH_O_LC_UNIXTHREAD:
4574 if (!bfd_mach_o_read_thread (abfd, command))
4577 case BFD_MACH_O_LC_LOAD_DYLINKER:
4578 case BFD_MACH_O_LC_ID_DYLINKER:
4579 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
4580 if (!bfd_mach_o_read_dylinker (abfd, command))
4583 case BFD_MACH_O_LC_LOAD_DYLIB:
4584 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
4585 case BFD_MACH_O_LC_ID_DYLIB:
4586 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
4587 case BFD_MACH_O_LC_REEXPORT_DYLIB:
4588 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
4589 if (!bfd_mach_o_read_dylib (abfd, command))
4592 case BFD_MACH_O_LC_PREBOUND_DYLIB:
4593 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4596 case BFD_MACH_O_LC_LOADFVMLIB:
4597 case BFD_MACH_O_LC_IDFVMLIB:
4598 if (!bfd_mach_o_read_fvmlib (abfd, command))
4601 case BFD_MACH_O_LC_IDENT:
4602 case BFD_MACH_O_LC_FVMFILE:
4603 case BFD_MACH_O_LC_PREPAGE:
4604 case BFD_MACH_O_LC_ROUTINES:
4605 case BFD_MACH_O_LC_ROUTINES_64:
4607 case BFD_MACH_O_LC_SUB_FRAMEWORK:
4608 case BFD_MACH_O_LC_SUB_UMBRELLA:
4609 case BFD_MACH_O_LC_SUB_LIBRARY:
4610 case BFD_MACH_O_LC_SUB_CLIENT:
4611 case BFD_MACH_O_LC_RPATH:
4612 if (!bfd_mach_o_read_str (abfd, command))
4615 case BFD_MACH_O_LC_DYSYMTAB:
4616 if (!bfd_mach_o_read_dysymtab (abfd, command))
4619 case BFD_MACH_O_LC_PREBIND_CKSUM:
4620 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4623 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
4624 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4627 case BFD_MACH_O_LC_UUID:
4628 if (!bfd_mach_o_read_uuid (abfd, command))
4631 case BFD_MACH_O_LC_CODE_SIGNATURE:
4632 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
4633 case BFD_MACH_O_LC_FUNCTION_STARTS:
4634 case BFD_MACH_O_LC_DATA_IN_CODE:
4635 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
4636 if (!bfd_mach_o_read_linkedit (abfd, command))
4639 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4640 if (!bfd_mach_o_read_encryption_info (abfd, command))
4643 case BFD_MACH_O_LC_DYLD_INFO:
4644 if (!bfd_mach_o_read_dyld_info (abfd, command))
4647 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4648 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4649 if (!bfd_mach_o_read_version_min (abfd, command))
4652 case BFD_MACH_O_LC_MAIN:
4653 if (!bfd_mach_o_read_main (abfd, command))
4656 case BFD_MACH_O_LC_SOURCE_VERSION:
4657 if (!bfd_mach_o_read_source_version (abfd, command))
4661 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
4662 abfd, (unsigned long) command->type);
4670 bfd_mach_o_flatten_sections (bfd *abfd)
4672 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4673 bfd_mach_o_load_command *cmd;
4676 /* Count total number of sections. */
4679 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4681 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4682 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4684 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4686 mdata->nsects += seg->nsects;
4690 /* Allocate sections array. */
4691 mdata->sections = bfd_alloc (abfd,
4692 mdata->nsects * sizeof (bfd_mach_o_section *));
4694 /* Fill the array. */
4697 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4699 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4700 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4702 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4703 bfd_mach_o_section *sec;
4705 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4707 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4708 mdata->sections[csect++] = sec;
4714 bfd_mach_o_scan_start_address (bfd *abfd)
4716 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4717 bfd_mach_o_thread_command *thr = NULL;
4718 bfd_mach_o_load_command *cmd;
4721 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4722 if (cmd->type == BFD_MACH_O_LC_THREAD
4723 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
4725 thr = &cmd->command.thread;
4728 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
4730 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
4731 bfd_mach_o_section *text_sect = mdata->sections[0];
4735 abfd->start_address = main_cmd->entryoff
4736 + (text_sect->addr - text_sect->offset);
4741 /* An object file has no start address, so do not fail if not found. */
4745 /* FIXME: create a subtarget hook ? */
4746 for (i = 0; i < thr->nflavours; i++)
4748 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
4749 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
4751 unsigned char buf[4];
4753 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
4754 || bfd_bread (buf, 4, abfd) != 4)
4757 abfd->start_address = bfd_h_get_32 (abfd, buf);
4759 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
4760 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
4762 unsigned char buf[4];
4764 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4765 || bfd_bread (buf, 4, abfd) != 4)
4768 abfd->start_address = bfd_h_get_32 (abfd, buf);
4770 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
4771 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
4773 unsigned char buf[8];
4775 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4776 || bfd_bread (buf, 8, abfd) != 8)
4779 abfd->start_address = bfd_h_get_64 (abfd, buf);
4781 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
4782 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
4784 unsigned char buf[8];
4786 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
4787 || bfd_bread (buf, 8, abfd) != 8)
4790 abfd->start_address = bfd_h_get_64 (abfd, buf);
4798 bfd_mach_o_set_arch_mach (bfd *abfd,
4799 enum bfd_architecture arch,
4800 unsigned long machine)
4802 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4804 /* If this isn't the right architecture for this backend, and this
4805 isn't the generic backend, fail. */
4806 if (arch != bed->arch
4807 && arch != bfd_arch_unknown
4808 && bed->arch != bfd_arch_unknown)
4811 return bfd_default_set_arch_mach (abfd, arch, machine);
4815 bfd_mach_o_scan (bfd *abfd,
4816 bfd_mach_o_header *header,
4817 bfd_mach_o_data_struct *mdata)
4820 enum bfd_architecture cputype;
4821 unsigned long cpusubtype;
4822 unsigned int hdrsize;
4824 hdrsize = mach_o_wide_p (header) ?
4825 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
4827 mdata->header = *header;
4829 abfd->flags = abfd->flags & BFD_IN_MEMORY;
4830 switch (header->filetype)
4832 case BFD_MACH_O_MH_OBJECT:
4833 abfd->flags |= HAS_RELOC;
4835 case BFD_MACH_O_MH_EXECUTE:
4836 abfd->flags |= EXEC_P;
4838 case BFD_MACH_O_MH_DYLIB:
4839 case BFD_MACH_O_MH_BUNDLE:
4840 abfd->flags |= DYNAMIC;
4844 abfd->tdata.mach_o_data = mdata;
4846 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4847 &cputype, &cpusubtype);
4848 if (cputype == bfd_arch_unknown)
4850 (*_bfd_error_handler)
4851 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
4852 header->cputype, header->cpusubtype);
4856 bfd_set_arch_mach (abfd, cputype, cpusubtype);
4858 if (header->ncmds != 0)
4860 bfd_mach_o_load_command *cmd;
4862 mdata->first_command = NULL;
4863 mdata->last_command = NULL;
4864 cmd = bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
4868 for (i = 0; i < header->ncmds; i++)
4870 bfd_mach_o_load_command *cur = &cmd[i];
4872 bfd_mach_o_append_command (abfd, cur);
4875 cur->offset = hdrsize;
4878 bfd_mach_o_load_command *prev = &cmd[i - 1];
4879 cur->offset = prev->offset + prev->len;
4882 if (!bfd_mach_o_read_command (abfd, cur))
4887 /* Sections should be flatten before scanning start address. */
4888 bfd_mach_o_flatten_sections (abfd);
4889 if (!bfd_mach_o_scan_start_address (abfd))
4896 bfd_mach_o_mkobject_init (bfd *abfd)
4898 bfd_mach_o_data_struct *mdata = NULL;
4900 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
4903 abfd->tdata.mach_o_data = mdata;
4905 mdata->header.magic = 0;
4906 mdata->header.cputype = 0;
4907 mdata->header.cpusubtype = 0;
4908 mdata->header.filetype = 0;
4909 mdata->header.ncmds = 0;
4910 mdata->header.sizeofcmds = 0;
4911 mdata->header.flags = 0;
4912 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
4913 mdata->first_command = NULL;
4914 mdata->last_command = NULL;
4916 mdata->sections = NULL;
4917 mdata->dyn_reloc_cache = NULL;
4923 bfd_mach_o_gen_mkobject (bfd *abfd)
4925 bfd_mach_o_data_struct *mdata;
4927 if (!bfd_mach_o_mkobject_init (abfd))
4930 mdata = bfd_mach_o_get_data (abfd);
4931 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
4932 mdata->header.cputype = 0;
4933 mdata->header.cpusubtype = 0;
4934 mdata->header.byteorder = abfd->xvec->byteorder;
4935 mdata->header.version = 1;
4941 bfd_mach_o_header_p (bfd *abfd,
4942 bfd_mach_o_filetype filetype,
4943 bfd_mach_o_cpu_type cputype)
4945 bfd_mach_o_header header;
4946 bfd_mach_o_data_struct *mdata;
4948 if (!bfd_mach_o_read_header (abfd, &header))
4951 if (! (header.byteorder == BFD_ENDIAN_BIG
4952 || header.byteorder == BFD_ENDIAN_LITTLE))
4954 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
4955 (unsigned long) header.byteorder);
4959 if (! ((header.byteorder == BFD_ENDIAN_BIG
4960 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
4961 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
4962 || (header.byteorder == BFD_ENDIAN_LITTLE
4963 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
4964 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
4967 /* Check cputype and filetype.
4968 In case of wildcard, do not accept magics that are handled by existing
4972 if (header.cputype != cputype)
4978 /* Do not recognize 64 architectures if not configured for 64bit targets.
4979 This could happen only for generic targets. */
4980 if (mach_o_wide_p (&header))
4987 if (header.filetype != filetype)
4992 switch (header.filetype)
4994 case BFD_MACH_O_MH_CORE:
4995 /* Handled by core_p */
5002 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5006 if (!bfd_mach_o_scan (abfd, &header, mdata))
5012 bfd_set_error (bfd_error_wrong_format);
5018 static const bfd_target *
5019 bfd_mach_o_gen_object_p (bfd *abfd)
5021 return bfd_mach_o_header_p (abfd, 0, 0);
5024 static const bfd_target *
5025 bfd_mach_o_gen_core_p (bfd *abfd)
5027 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
5030 /* Return the base address of ABFD, ie the address at which the image is
5031 mapped. The possible initial pagezero is ignored. */
5034 bfd_mach_o_get_base_address (bfd *abfd)
5036 bfd_mach_o_data_struct *mdata;
5037 bfd_mach_o_load_command *cmd;
5039 /* Check for Mach-O. */
5040 if (!bfd_mach_o_valid (abfd))
5042 mdata = bfd_mach_o_get_data (abfd);
5044 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5046 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5047 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5049 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5051 if (segcmd->initprot != 0)
5052 return segcmd->vmaddr;
5058 typedef struct mach_o_fat_archentry
5060 unsigned long cputype;
5061 unsigned long cpusubtype;
5062 unsigned long offset;
5064 unsigned long align;
5065 } mach_o_fat_archentry;
5067 typedef struct mach_o_fat_data_struct
5069 unsigned long magic;
5070 unsigned long nfat_arch;
5071 mach_o_fat_archentry *archentries;
5072 } mach_o_fat_data_struct;
5075 bfd_mach_o_archive_p (bfd *abfd)
5077 mach_o_fat_data_struct *adata = NULL;
5078 struct mach_o_fat_header_external hdr;
5081 if (bfd_seek (abfd, 0, SEEK_SET) != 0
5082 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
5085 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
5089 adata->magic = bfd_getb32 (hdr.magic);
5090 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
5091 if (adata->magic != 0xcafebabe)
5093 /* Avoid matching Java bytecode files, which have the same magic number.
5094 In the Java bytecode file format this field contains the JVM version,
5095 which starts at 43.0. */
5096 if (adata->nfat_arch > 30)
5099 adata->archentries =
5100 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
5101 if (adata->archentries == NULL)
5104 for (i = 0; i < adata->nfat_arch; i++)
5106 struct mach_o_fat_arch_external arch;
5107 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
5109 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5110 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5111 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5112 adata->archentries[i].size = bfd_getb32 (arch.size);
5113 adata->archentries[i].align = bfd_getb32 (arch.align);
5116 abfd->tdata.mach_o_fat_data = adata;
5121 bfd_release (abfd, adata);
5122 bfd_set_error (bfd_error_wrong_format);
5126 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5127 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5128 Set arelt_data and origin fields too. */
5131 bfd_mach_o_fat_member_init (bfd *abfd,
5132 enum bfd_architecture arch_type,
5133 unsigned long arch_subtype,
5134 mach_o_fat_archentry *entry)
5136 struct areltdata *areltdata;
5137 /* Create the member filename. Use ARCH_NAME. */
5138 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5142 /* Use the architecture name if known. */
5143 abfd->filename = xstrdup (ap->printable_name);
5147 /* Forge a uniq id. */
5148 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
5149 char *name = xmalloc (namelen);
5150 snprintf (name, namelen, "0x%lx-0x%lx",
5151 entry->cputype, entry->cpusubtype);
5152 abfd->filename = name;
5155 areltdata = bfd_zmalloc (sizeof (struct areltdata));
5156 areltdata->parsed_size = entry->size;
5157 abfd->arelt_data = areltdata;
5158 abfd->iostream = NULL;
5159 abfd->origin = entry->offset;
5163 bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
5165 mach_o_fat_data_struct *adata;
5166 mach_o_fat_archentry *entry = NULL;
5169 enum bfd_architecture arch_type;
5170 unsigned long arch_subtype;
5172 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
5173 BFD_ASSERT (adata != NULL);
5175 /* Find index of previous entry. */
5178 /* Start at first one. */
5183 /* Find index of PREV. */
5184 for (i = 0; i < adata->nfat_arch; i++)
5186 if (adata->archentries[i].offset == prev->origin)
5190 if (i == adata->nfat_arch)
5193 bfd_set_error (bfd_error_bad_value);
5197 /* Get next entry. */
5201 if (i >= adata->nfat_arch)
5203 bfd_set_error (bfd_error_no_more_archived_files);
5207 entry = &adata->archentries[i];
5208 nbfd = _bfd_new_bfd_contained_in (archive);
5212 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5213 &arch_type, &arch_subtype);
5215 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5217 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
5222 /* Analogous to stat call. */
5225 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5227 if (abfd->arelt_data == NULL)
5229 bfd_set_error (bfd_error_invalid_operation);
5236 buf->st_mode = 0644;
5237 buf->st_size = arelt_size (abfd);
5242 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5243 If ABFD is a fat image containing a member that corresponds to FORMAT
5244 and ARCH, returns it.
5245 In other case, returns NULL.
5246 This function allows transparent uses of fat images. */
5249 bfd_mach_o_fat_extract (bfd *abfd,
5251 const bfd_arch_info_type *arch)
5254 mach_o_fat_data_struct *adata;
5257 if (bfd_check_format (abfd, format))
5259 if (bfd_get_arch_info (abfd) == arch)
5263 if (!bfd_check_format (abfd, bfd_archive)
5264 || abfd->xvec != &mach_o_fat_vec)
5267 /* This is a Mach-O fat image. */
5268 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5269 BFD_ASSERT (adata != NULL);
5271 for (i = 0; i < adata->nfat_arch; i++)
5273 struct mach_o_fat_archentry *e = &adata->archentries[i];
5274 enum bfd_architecture cpu_type;
5275 unsigned long cpu_subtype;
5277 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5278 &cpu_type, &cpu_subtype);
5279 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5282 /* The architecture is found. */
5283 res = _bfd_new_bfd_contained_in (abfd);
5287 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
5289 if (bfd_check_format (res, format))
5291 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5302 bfd_mach_o_lookup_command (bfd *abfd,
5303 bfd_mach_o_load_command_type type,
5304 bfd_mach_o_load_command **mcommand)
5306 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5307 struct bfd_mach_o_load_command *cmd;
5310 BFD_ASSERT (mdata != NULL);
5311 BFD_ASSERT (mcommand != NULL);
5314 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5316 if (cmd->type != type)
5328 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
5332 case BFD_MACH_O_CPU_TYPE_MC680x0:
5334 case BFD_MACH_O_CPU_TYPE_MC88000:
5336 case BFD_MACH_O_CPU_TYPE_POWERPC:
5338 case BFD_MACH_O_CPU_TYPE_I386:
5340 case BFD_MACH_O_CPU_TYPE_SPARC:
5342 case BFD_MACH_O_CPU_TYPE_I860:
5344 case BFD_MACH_O_CPU_TYPE_HPPA:
5345 return 0xc0000000 - 0x04000000;
5351 /* The following two tables should be kept, as far as possible, in order of
5352 most frequently used entries to optimize their use from gas. */
5354 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
5356 { "regular", BFD_MACH_O_S_REGULAR},
5357 { "coalesced", BFD_MACH_O_S_COALESCED},
5358 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5359 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5360 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5361 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
5362 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
5363 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
5364 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5365 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
5366 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5367 { "interposing", BFD_MACH_O_S_INTERPOSING},
5368 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
5369 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5370 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
5371 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
5372 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5376 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
5378 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5379 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
5380 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5381 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
5382 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
5383 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5384 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5385 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5386 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
5387 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5388 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5392 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5395 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
5397 const bfd_mach_o_xlat_name *x;
5398 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5400 for (x = bfd_mach_o_section_type_name; x->name; x++)
5401 if (strcmp (x->name, name) == 0)
5403 /* We found it... does the target support it? */
5404 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5405 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5406 return x->val; /* OK. */
5408 break; /* Not supported. */
5410 /* Maximum section ID = 0xff. */
5414 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5417 bfd_mach_o_get_section_attribute_from_name (const char *name)
5419 const bfd_mach_o_xlat_name *x;
5421 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5422 if (strcmp (x->name, name) == 0)
5424 return (unsigned int)-1;
5428 bfd_mach_o_core_fetch_environment (bfd *abfd,
5429 unsigned char **rbuf,
5432 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5433 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
5434 bfd_mach_o_load_command *cmd;
5436 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5438 bfd_mach_o_segment_command *seg;
5440 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
5443 seg = &cmd->command.segment;
5445 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5447 unsigned long start = seg->fileoff;
5448 unsigned long end = seg->fileoff + seg->filesize;
5449 unsigned char *buf = bfd_malloc (1024);
5450 unsigned long size = 1024;
5454 bfd_size_type nread = 0;
5455 unsigned long offset;
5456 int found_nonnull = 0;
5458 if (size > (end - start))
5459 size = (end - start);
5461 buf = bfd_realloc_or_free (buf, size);
5465 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5471 nread = bfd_bread (buf, size, abfd);
5479 for (offset = 4; offset <= size; offset += 4)
5483 val = *((unsigned long *) (buf + size - offset));
5484 if (! found_nonnull)
5489 else if (val == 0x0)
5491 unsigned long bottom;
5494 bottom = seg->fileoff + seg->filesize - offset;
5495 top = seg->fileoff + seg->filesize - 4;
5496 *rbuf = bfd_malloc (top - bottom);
5497 *rlen = top - bottom;
5499 memcpy (*rbuf, buf + size - *rlen, *rlen);
5505 if (size == (end - start))
5519 bfd_mach_o_core_file_failing_command (bfd *abfd)
5521 unsigned char *buf = NULL;
5522 unsigned int len = 0;
5525 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5529 return (char *) buf;
5533 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
5538 static bfd_mach_o_uuid_command *
5539 bfd_mach_o_lookup_uuid_command (bfd *abfd)
5541 bfd_mach_o_load_command *uuid_cmd;
5542 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5545 return &uuid_cmd->command.uuid;
5548 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5551 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5553 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5556 BFD_ASSERT (uuid_cmd);
5558 if (!bfd_check_format (abfd, bfd_object))
5561 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5562 || bfd_mach_o_get_data (abfd) == NULL
5563 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5566 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5567 if (dsym_uuid_cmd == NULL)
5570 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5571 sizeof (uuid_cmd->uuid)) != 0)
5577 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5578 The caller is responsible for closing the returned BFD object and
5579 its my_archive if the returned BFD is in a fat dSYM. */
5582 bfd_mach_o_find_dsym (const char *dsym_filename,
5583 const bfd_mach_o_uuid_command *uuid_cmd,
5584 const bfd_arch_info_type *arch)
5586 bfd *base_dsym_bfd, *dsym_bfd;
5588 BFD_ASSERT (uuid_cmd);
5590 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5591 if (base_dsym_bfd == NULL)
5594 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5595 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5598 bfd_close (dsym_bfd);
5599 if (base_dsym_bfd != dsym_bfd)
5600 bfd_close (base_dsym_bfd);
5605 /* Return a BFD created from a dSYM file for ABFD.
5606 The caller is responsible for closing the returned BFD object, its
5607 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5610 bfd_mach_o_follow_dsym (bfd *abfd)
5612 char *dsym_filename;
5613 bfd_mach_o_uuid_command *uuid_cmd;
5614 bfd *dsym_bfd, *base_bfd = abfd;
5615 const char *base_basename;
5617 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5620 if (abfd->my_archive)
5621 base_bfd = abfd->my_archive;
5622 /* BFD may have been opened from a stream. */
5623 if (base_bfd->filename == NULL)
5625 bfd_set_error (bfd_error_invalid_operation);
5628 base_basename = lbasename (base_bfd->filename);
5630 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5631 if (uuid_cmd == NULL)
5634 /* TODO: We assume the DWARF file has the same as the binary's.
5635 It seems apple's GDB checks all files in the dSYM bundle directory.
5636 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5638 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5639 + strlen (dsym_subdir) + 1
5640 + strlen (base_basename) + 1);
5641 sprintf (dsym_filename, "%s%s/%s",
5642 base_bfd->filename, dsym_subdir, base_basename);
5644 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5645 bfd_get_arch_info (abfd));
5646 if (dsym_bfd == NULL)
5647 free (dsym_filename);
5653 bfd_mach_o_find_nearest_line (bfd *abfd,
5657 const char **filename_ptr,
5658 const char **functionname_ptr,
5659 unsigned int *line_ptr,
5660 unsigned int *discriminator_ptr)
5662 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5665 switch (mdata->header.filetype)
5667 case BFD_MACH_O_MH_OBJECT:
5669 case BFD_MACH_O_MH_EXECUTE:
5670 case BFD_MACH_O_MH_DYLIB:
5671 case BFD_MACH_O_MH_BUNDLE:
5672 case BFD_MACH_O_MH_KEXT_BUNDLE:
5673 if (mdata->dwarf2_find_line_info == NULL)
5675 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5676 /* When we couldn't find dSYM for this binary, we look for
5677 the debug information in the binary itself. In this way,
5678 we won't try finding separated dSYM again because
5679 mdata->dwarf2_find_line_info will be filled. */
5680 if (! mdata->dsym_bfd)
5682 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5683 dwarf_debug_sections, symbols,
5684 &mdata->dwarf2_find_line_info,
5692 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5693 filename_ptr, functionname_ptr,
5694 line_ptr, discriminator_ptr,
5695 dwarf_debug_sections, 0,
5696 &mdata->dwarf2_find_line_info);
5700 bfd_mach_o_close_and_cleanup (bfd *abfd)
5702 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5703 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
5705 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5706 bfd_mach_o_free_cached_info (abfd);
5707 if (mdata->dsym_bfd != NULL)
5709 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5710 char *dsym_filename = (char *)(fat_bfd
5712 : mdata->dsym_bfd->filename);
5713 bfd_close (mdata->dsym_bfd);
5714 mdata->dsym_bfd = NULL;
5716 bfd_close (fat_bfd);
5717 free (dsym_filename);
5721 if (bfd_get_format (abfd) == bfd_archive
5722 && abfd->xvec == &mach_o_fat_vec)
5724 return _bfd_generic_close_and_cleanup (abfd);
5727 bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
5729 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5731 free (mdata->dyn_reloc_cache);
5732 mdata->dyn_reloc_cache = NULL;
5733 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5735 free (asect->relocation);
5736 asect->relocation = NULL;
5742 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5743 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5745 #define bfd_mach_o_swap_reloc_in NULL
5746 #define bfd_mach_o_swap_reloc_out NULL
5747 #define bfd_mach_o_print_thread NULL
5748 #define bfd_mach_o_tgt_seg_table NULL
5749 #define bfd_mach_o_section_type_valid_for_tgt NULL
5751 #define TARGET_NAME mach_o_be_vec
5752 #define TARGET_STRING "mach-o-be"
5753 #define TARGET_ARCHITECTURE bfd_arch_unknown
5754 #define TARGET_PAGESIZE 1
5755 #define TARGET_BIG_ENDIAN 1
5756 #define TARGET_ARCHIVE 0
5757 #define TARGET_PRIORITY 1
5758 #include "mach-o-target.c"
5761 #undef TARGET_STRING
5762 #undef TARGET_ARCHITECTURE
5763 #undef TARGET_PAGESIZE
5764 #undef TARGET_BIG_ENDIAN
5765 #undef TARGET_ARCHIVE
5766 #undef TARGET_PRIORITY
5768 #define TARGET_NAME mach_o_le_vec
5769 #define TARGET_STRING "mach-o-le"
5770 #define TARGET_ARCHITECTURE bfd_arch_unknown
5771 #define TARGET_PAGESIZE 1
5772 #define TARGET_BIG_ENDIAN 0
5773 #define TARGET_ARCHIVE 0
5774 #define TARGET_PRIORITY 1
5776 #include "mach-o-target.c"
5779 #undef TARGET_STRING
5780 #undef TARGET_ARCHITECTURE
5781 #undef TARGET_PAGESIZE
5782 #undef TARGET_BIG_ENDIAN
5783 #undef TARGET_ARCHIVE
5784 #undef TARGET_PRIORITY
5786 /* Not yet handled: creating an archive. */
5787 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
5790 #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
5791 #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
5792 #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
5793 #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
5794 #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
5795 #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
5796 #define bfd_mach_o_write_armap _bfd_noarchive_write_armap
5797 #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
5798 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
5799 #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
5801 #define TARGET_NAME mach_o_fat_vec
5802 #define TARGET_STRING "mach-o-fat"
5803 #define TARGET_ARCHITECTURE bfd_arch_unknown
5804 #define TARGET_PAGESIZE 1
5805 #define TARGET_BIG_ENDIAN 1
5806 #define TARGET_ARCHIVE 1
5807 #define TARGET_PRIORITY 0
5809 #include "mach-o-target.c"
5812 #undef TARGET_STRING
5813 #undef TARGET_ARCHITECTURE
5814 #undef TARGET_PAGESIZE
5815 #undef TARGET_BIG_ENDIAN
5816 #undef TARGET_ARCHIVE
5817 #undef TARGET_PRIORITY