1 /* Mach-O support for BFD.
2 Copyright (C) 1999-2015 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;
795 unsigned long count, i, j, n;
799 const char stub [] = "$stub";
803 /* Stop now if no symbols or no indirect symbols. */
804 if (dysymtab == NULL || dysymtab->nindirectsyms == 0
805 || symtab == NULL || symtab->symbols == NULL)
808 /* We need to allocate a bfd symbol for every indirect symbol and to
809 allocate the memory for its name. */
810 count = dysymtab->nindirectsyms;
811 size = count * sizeof (asymbol) + 1;
813 for (j = 0; j < count; j++)
816 unsigned int isym = dysymtab->indirect_syms[j];
818 /* Some indirect symbols are anonymous. */
819 if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name))
820 /* PR 17512: file: f5b8eeba. */
821 size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub);
824 s_start = bfd_malloc (size);
825 s = *ret = (asymbol *) s_start;
828 names = (char *) (s + count);
831 s_end = s_start + size;
834 for (i = 0; i < mdata->nsects; i++)
836 bfd_mach_o_section *sec = mdata->sections[i];
837 unsigned int first, last;
841 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
843 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
844 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
845 case BFD_MACH_O_S_SYMBOL_STUBS:
846 /* Only these sections have indirect symbols. */
847 first = sec->reserved1;
848 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
850 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
852 /* PR 17512: file: 08e15eec. */
853 if (first >= count || last >= count || first > last)
856 for (j = first; j < last; j++)
858 unsigned int isym = dysymtab->indirect_syms[j];
860 /* PR 17512: file: 04d64d9b. */
861 if (((char *) s) + sizeof (* s) > s_end)
864 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
865 s->section = sec->bfdsection;
866 s->value = addr - sec->addr;
869 if (isym < symtab->nsyms
870 && symtab->symbols[isym].symbol.name)
872 const char *sym = symtab->symbols[isym].symbol.name;
877 /* PR 17512: file: 47dfd4d2. */
878 if (names + len >= s_end)
880 memcpy (names, sym, len);
882 /* PR 17512: file: 18f340a4. */
883 if (names + sizeof (stub) >= s_end)
885 memcpy (names, stub, sizeof (stub));
886 names += sizeof (stub);
910 bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
914 bfd_symbol_info (symbol, ret);
918 bfd_mach_o_print_symbol (bfd *abfd,
921 bfd_print_symbol_type how)
923 FILE *file = (FILE *) afile;
925 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
929 case bfd_print_symbol_name:
930 fprintf (file, "%s", symbol->name);
933 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
934 if (asym->n_type & BFD_MACH_O_N_STAB)
935 name = bfd_get_stab_name (asym->n_type);
937 switch (asym->n_type & BFD_MACH_O_N_TYPE)
939 case BFD_MACH_O_N_UNDF:
940 if (symbol->value == 0)
945 case BFD_MACH_O_N_ABS:
948 case BFD_MACH_O_N_INDR:
951 case BFD_MACH_O_N_PBUD:
954 case BFD_MACH_O_N_SECT:
963 fprintf (file, " %02x %-6s %02x %04x",
964 asym->n_type, name, asym->n_sect, asym->n_desc);
965 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
966 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
967 fprintf (file, " [%s]", symbol->section->name);
968 fprintf (file, " %s", symbol->name);
973 bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
974 bfd_mach_o_cpu_subtype msubtype,
975 enum bfd_architecture *type,
976 unsigned long *subtype)
978 *subtype = bfd_arch_unknown;
982 case BFD_MACH_O_CPU_TYPE_VAX:
983 *type = bfd_arch_vax;
985 case BFD_MACH_O_CPU_TYPE_MC680x0:
986 *type = bfd_arch_m68k;
988 case BFD_MACH_O_CPU_TYPE_I386:
989 *type = bfd_arch_i386;
990 *subtype = bfd_mach_i386_i386;
992 case BFD_MACH_O_CPU_TYPE_X86_64:
993 *type = bfd_arch_i386;
994 *subtype = bfd_mach_x86_64;
996 case BFD_MACH_O_CPU_TYPE_MIPS:
997 *type = bfd_arch_mips;
999 case BFD_MACH_O_CPU_TYPE_MC98000:
1000 *type = bfd_arch_m98k;
1002 case BFD_MACH_O_CPU_TYPE_HPPA:
1003 *type = bfd_arch_hppa;
1005 case BFD_MACH_O_CPU_TYPE_ARM:
1006 *type = bfd_arch_arm;
1009 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
1010 *subtype = bfd_mach_arm_4T;
1012 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
1013 *subtype = bfd_mach_arm_4T; /* Best fit ? */
1015 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
1016 *subtype = bfd_mach_arm_5TE;
1018 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
1019 *subtype = bfd_mach_arm_XScale;
1021 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
1022 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
1024 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
1029 case BFD_MACH_O_CPU_TYPE_MC88000:
1030 *type = bfd_arch_m88k;
1032 case BFD_MACH_O_CPU_TYPE_SPARC:
1033 *type = bfd_arch_sparc;
1034 *subtype = bfd_mach_sparc;
1036 case BFD_MACH_O_CPU_TYPE_I860:
1037 *type = bfd_arch_i860;
1039 case BFD_MACH_O_CPU_TYPE_ALPHA:
1040 *type = bfd_arch_alpha;
1042 case BFD_MACH_O_CPU_TYPE_POWERPC:
1043 *type = bfd_arch_powerpc;
1044 *subtype = bfd_mach_ppc;
1046 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1047 *type = bfd_arch_powerpc;
1048 *subtype = bfd_mach_ppc64;
1050 case BFD_MACH_O_CPU_TYPE_ARM64:
1051 *type = bfd_arch_aarch64;
1052 *subtype = bfd_mach_aarch64;
1055 *type = bfd_arch_unknown;
1060 /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1061 number of bytes written or -1 in case of error. */
1064 bfd_mach_o_pad4 (bfd *abfd, unsigned int len)
1068 char pad[4] = {0,0,0,0};
1069 unsigned int padlen = 4 - (len % 4);
1071 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1080 /* Likewise, but for a command. */
1083 bfd_mach_o_pad_command (bfd *abfd, unsigned int len)
1085 unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4;
1087 if (len % align != 0)
1090 unsigned int padlen = align - (len % align);
1092 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1102 bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
1104 struct mach_o_header_external raw;
1107 size = mach_o_wide_p (header) ?
1108 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1110 bfd_h_put_32 (abfd, header->magic, raw.magic);
1111 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
1112 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
1113 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
1114 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
1115 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
1116 bfd_h_put_32 (abfd, header->flags, raw.flags);
1118 if (mach_o_wide_p (header))
1119 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1121 if (bfd_seek (abfd, 0, SEEK_SET) != 0
1122 || bfd_bwrite (&raw, size, abfd) != size)
1129 bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
1131 bfd_mach_o_thread_command *cmd = &command->command.thread;
1133 struct mach_o_thread_command_external raw;
1134 unsigned int offset;
1136 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1137 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1139 offset = BFD_MACH_O_LC_SIZE;
1140 for (i = 0; i < cmd->nflavours; i++)
1142 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
1143 BFD_ASSERT (cmd->flavours[i].offset ==
1144 (command->offset + offset + BFD_MACH_O_LC_SIZE));
1146 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
1147 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
1149 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
1150 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1153 offset += cmd->flavours[i].size + sizeof (raw);
1160 bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
1162 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1163 struct mach_o_str_command_external raw;
1164 unsigned int namelen;
1166 bfd_h_put_32 (abfd, cmd->name_offset, raw.str);
1168 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1169 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1172 namelen = strlen (cmd->name_str) + 1;
1173 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1176 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1183 bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1185 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1186 struct mach_o_dylib_command_external raw;
1187 unsigned int namelen;
1189 bfd_h_put_32 (abfd, cmd->name_offset, raw.name);
1190 bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp);
1191 bfd_h_put_32 (abfd, cmd->current_version, raw.current_version);
1192 bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version);
1194 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1195 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1198 namelen = strlen (cmd->name_str) + 1;
1199 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1202 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1209 bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
1211 bfd_mach_o_main_command *cmd = &command->command.main;
1212 struct mach_o_entry_point_command_external raw;
1214 bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff);
1215 bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize);
1217 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1218 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1225 bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
1227 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
1228 struct mach_o_dyld_info_command_external raw;
1230 bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off);
1231 bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size);
1232 bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off);
1233 bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size);
1234 bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off);
1235 bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size);
1236 bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off);
1237 bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size);
1238 bfd_h_put_32 (abfd, cmd->export_off, raw.export_off);
1239 bfd_h_put_32 (abfd, cmd->export_size, raw.export_size);
1241 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1242 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1245 if (cmd->rebase_size != 0)
1246 if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
1247 || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
1251 if (cmd->bind_size != 0)
1252 if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
1253 || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
1257 if (cmd->weak_bind_size != 0)
1258 if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
1259 || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
1260 cmd->weak_bind_size))
1263 if (cmd->lazy_bind_size != 0)
1264 if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
1265 || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
1266 cmd->lazy_bind_size))
1269 if (cmd->export_size != 0)
1270 if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
1271 || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
1279 bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
1282 return (asect->reloc_count + 1) * sizeof (arelent *);
1285 /* In addition to the need to byte-swap the symbol number, the bit positions
1286 of the fields in the relocation information vary per target endian-ness. */
1289 bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel,
1290 unsigned char *fields)
1292 unsigned char info = fields[3];
1294 if (bfd_big_endian (abfd))
1296 rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2];
1297 rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1298 rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0;
1299 rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT)
1300 & BFD_MACH_O_LENGTH_MASK;
1301 rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0;
1305 rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0];
1306 rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1307 rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0;
1308 rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT)
1309 & BFD_MACH_O_LENGTH_MASK;
1310 rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0;
1315 bfd_mach_o_canonicalize_one_reloc (bfd *abfd,
1316 struct mach_o_reloc_info_external *raw,
1317 arelent *res, asymbol **syms)
1319 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1320 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1321 bfd_mach_o_reloc_info reloc;
1325 addr = bfd_get_32 (abfd, raw->r_address);
1326 res->sym_ptr_ptr = NULL;
1329 if (addr & BFD_MACH_O_SR_SCATTERED)
1332 bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum);
1334 /* Scattered relocation, can't be extern. */
1335 reloc.r_scattered = 1;
1338 /* Extract section and offset from r_value (symnum). */
1339 reloc.r_value = symnum;
1340 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1341 end of the data for the section (e.g. in a calculation of section
1342 data length). At present, the symbol will end up associated with
1343 the following section or, if it falls within alignment padding, as
1344 null - which will assert later. */
1345 for (j = 0; j < mdata->nsects; j++)
1347 bfd_mach_o_section *sect = mdata->sections[j];
1348 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1350 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1351 res->addend = symnum - sect->addr;
1356 /* Extract the info and address fields from r_address. */
1357 reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1358 reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1359 reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL;
1360 reloc.r_address = BFD_MACH_O_GET_SR_TYPE (addr);
1361 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
1367 /* Non-scattered relocation. */
1368 reloc.r_scattered = 0;
1370 /* The value and info fields have to be extracted dependent on target
1372 bfd_mach_o_swap_in_non_scattered_reloc (abfd, &reloc, raw->r_symbolnum);
1373 num = reloc.r_value;
1377 /* PR 17512: file: 8396-1185-0.004. */
1378 if (bfd_get_symcount (abfd) > 0 && num > bfd_get_symcount (abfd))
1379 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1380 else if (syms == NULL)
1381 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1383 /* An external symbol number. */
1386 else if (num == 0x00ffffff || num == 0)
1388 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1389 is generic code, we don't know wether this is really a PAIR.
1390 This value is almost certainly not a valid section number, hence
1391 this specific case to avoid an assertion failure.
1392 Target specific swap_reloc_in routine should adjust that. */
1393 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1397 /* PR 17512: file: 006-2964-0.004. */
1398 if (num > mdata->nsects)
1401 /* A section number. */
1402 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1403 /* For a symbol defined in section S, the addend (stored in the
1404 binary) contains the address of the section. To comply with
1405 bfd convention, subtract the section address.
1406 Use the address from the header, so that the user can modify
1407 the vma of the section. */
1408 res->addend = -mdata->sections[num - 1]->addr;
1410 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1411 in the lower 16bits of the address value. So we have to find the
1412 'symbol' from the preceding reloc. We do this even though the
1413 section symbol is probably not needed here, because NULL symbol
1414 values cause an assert in generic BFD code. This must be done in
1415 the PPC swap_reloc_in routine. */
1416 res->sym_ptr_ptr = sym;
1418 /* The 'address' is just r_address.
1419 ??? maybe this should be masked with 0xffffff for safety. */
1420 res->address = addr;
1421 reloc.r_address = addr;
1424 /* We have set up a reloc with all the information present, so the swapper
1425 can modify address, value and addend fields, if necessary, to convey
1426 information in the generic BFD reloc that is mach-o specific. */
1428 if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc))
1435 bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1436 unsigned long count,
1437 arelent *res, asymbol **syms)
1440 struct mach_o_reloc_info_external *native_relocs;
1441 bfd_size_type native_size;
1443 /* Allocate and read relocs. */
1444 native_size = count * BFD_MACH_O_RELENT_SIZE;
1447 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
1448 if (native_relocs == NULL)
1451 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
1452 || bfd_bread (native_relocs, native_size, abfd) != native_size)
1455 for (i = 0; i < count; i++)
1457 if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i],
1461 free (native_relocs);
1464 free (native_relocs);
1469 bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1470 arelent **rels, asymbol **syms)
1472 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1476 if (asect->reloc_count == 0)
1479 /* No need to go further if we don't know how to read relocs. */
1480 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1483 if (asect->relocation == NULL)
1485 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1489 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1490 asect->reloc_count, res, syms) < 0)
1495 asect->relocation = res;
1498 res = asect->relocation;
1499 for (i = 0; i < asect->reloc_count; i++)
1507 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1509 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1511 if (mdata->dysymtab == NULL)
1513 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
1514 * sizeof (arelent *);
1518 bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1519 struct bfd_symbol **syms)
1521 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1522 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1523 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1527 if (dysymtab == NULL)
1529 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1532 /* No need to go further if we don't know how to read relocs. */
1533 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1536 if (mdata->dyn_reloc_cache == NULL)
1538 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1539 * sizeof (arelent));
1543 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1544 dysymtab->nextrel, res, syms) < 0)
1550 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1552 res + dysymtab->nextrel, syms) < 0)
1558 mdata->dyn_reloc_cache = res;
1561 res = mdata->dyn_reloc_cache;
1562 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1568 /* In addition to the need to byte-swap the symbol number, the bit positions
1569 of the fields in the relocation information vary per target endian-ness. */
1572 bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
1573 bfd_mach_o_reloc_info *rel)
1575 unsigned char info = 0;
1577 BFD_ASSERT (rel->r_type <= 15);
1578 BFD_ASSERT (rel->r_length <= 3);
1580 if (bfd_big_endian (abfd))
1582 fields[0] = (rel->r_value >> 16) & 0xff;
1583 fields[1] = (rel->r_value >> 8) & 0xff;
1584 fields[2] = rel->r_value & 0xff;
1585 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1586 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1587 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1588 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1592 fields[2] = (rel->r_value >> 16) & 0xff;
1593 fields[1] = (rel->r_value >> 8) & 0xff;
1594 fields[0] = rel->r_value & 0xff;
1595 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1596 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1597 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1598 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1604 bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
1609 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1611 sec = section->bfdsection;
1612 if (sec->reloc_count == 0)
1615 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1618 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1621 /* Convert and write. */
1622 entries = section->bfdsection->orelocation;
1623 for (i = 0; i < section->nreloc; i++)
1625 arelent *rel = entries[i];
1626 struct mach_o_reloc_info_external raw;
1627 bfd_mach_o_reloc_info info, *pinfo = &info;
1629 /* Convert relocation to an intermediate representation. */
1630 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1633 /* Lower the relocation info. */
1634 if (pinfo->r_scattered)
1638 v = BFD_MACH_O_SR_SCATTERED
1639 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1640 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1641 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1642 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
1643 /* Note: scattered relocs have field in reverse order... */
1644 bfd_put_32 (abfd, v, raw.r_address);
1645 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1649 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1650 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
1654 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
1655 != BFD_MACH_O_RELENT_SIZE)
1662 bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
1664 struct mach_o_section_32_external raw;
1666 memcpy (raw.sectname, section->sectname, 16);
1667 memcpy (raw.segname, section->segname, 16);
1668 bfd_h_put_32 (abfd, section->addr, raw.addr);
1669 bfd_h_put_32 (abfd, section->size, raw.size);
1670 bfd_h_put_32 (abfd, section->offset, raw.offset);
1671 bfd_h_put_32 (abfd, section->align, raw.align);
1672 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1673 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1674 bfd_h_put_32 (abfd, section->flags, raw.flags);
1675 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1676 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1678 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
1679 != BFD_MACH_O_SECTION_SIZE)
1686 bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
1688 struct mach_o_section_64_external raw;
1690 memcpy (raw.sectname, section->sectname, 16);
1691 memcpy (raw.segname, section->segname, 16);
1692 bfd_h_put_64 (abfd, section->addr, raw.addr);
1693 bfd_h_put_64 (abfd, section->size, raw.size);
1694 bfd_h_put_32 (abfd, section->offset, raw.offset);
1695 bfd_h_put_32 (abfd, section->align, raw.align);
1696 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1697 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1698 bfd_h_put_32 (abfd, section->flags, raw.flags);
1699 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1700 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1701 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1703 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
1704 != BFD_MACH_O_SECTION_64_SIZE)
1711 bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1713 struct mach_o_segment_command_32_external raw;
1714 bfd_mach_o_segment_command *seg = &command->command.segment;
1715 bfd_mach_o_section *sec;
1717 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1719 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1720 if (!bfd_mach_o_write_relocs (abfd, sec))
1723 memcpy (raw.segname, seg->segname, 16);
1724 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1725 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1726 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1727 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1728 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1729 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1730 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1731 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1733 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1734 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1737 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1738 if (!bfd_mach_o_write_section_32 (abfd, sec))
1745 bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1747 struct mach_o_segment_command_64_external raw;
1748 bfd_mach_o_segment_command *seg = &command->command.segment;
1749 bfd_mach_o_section *sec;
1751 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1753 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1754 if (!bfd_mach_o_write_relocs (abfd, sec))
1757 memcpy (raw.segname, seg->segname, 16);
1758 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1759 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1760 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1761 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1762 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1763 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1764 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1765 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1767 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1768 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1771 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1772 if (!bfd_mach_o_write_section_64 (abfd, sec))
1779 bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
1781 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1783 unsigned int wide = bfd_mach_o_wide_p (abfd);
1784 struct bfd_strtab_hash *strtab;
1785 asymbol **symbols = bfd_get_outsymbols (abfd);
1788 /* Write the symbols first. */
1789 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1792 strtab = _bfd_stringtab_init ();
1797 /* Although we don't strictly need to do this, for compatibility with
1798 Darwin system tools, actually output an empty string for the index
1800 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1802 for (i = 0; i < sym->nsyms; i++)
1804 bfd_size_type str_index;
1805 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1807 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
1808 /* An index of 0 always means the empty string. */
1812 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
1814 if (str_index == (bfd_size_type) -1)
1820 struct mach_o_nlist_64_external raw;
1822 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1823 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1824 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1825 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1826 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1829 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1834 struct mach_o_nlist_external raw;
1836 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1837 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1838 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1839 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1840 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1843 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1847 sym->strsize = _bfd_stringtab_size (strtab);
1848 sym->stroff = mdata->filelen;
1849 mdata->filelen += sym->strsize;
1851 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
1854 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
1856 _bfd_stringtab_free (strtab);
1858 /* Pad string table. */
1859 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
1862 mdata->filelen += padlen;
1863 sym->strsize += padlen;
1868 _bfd_stringtab_free (strtab);
1873 bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1875 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1876 struct mach_o_symtab_command_external raw;
1878 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1881 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1882 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1883 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1884 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1886 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1887 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1893 /* Count the number of indirect symbols in the image.
1894 Requires that the sections are in their final order. */
1897 bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
1900 unsigned int nisyms = 0;
1902 for (i = 0; i < mdata->nsects; ++i)
1904 bfd_mach_o_section *sec = mdata->sections[i];
1906 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1908 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1909 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1910 case BFD_MACH_O_S_SYMBOL_STUBS:
1911 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1920 /* Create the dysymtab. */
1923 bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
1925 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1928 We are not going to try and fill these in yet and, moreover, we are
1929 going to bail if they are already set. */
1930 if (cmd->nmodtab != 0
1932 || cmd->nextrefsyms != 0)
1934 (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet"
1935 " implemented for dysymtab commands."));
1941 if (bfd_get_symcount (abfd) > 0)
1943 asymbol **symbols = bfd_get_outsymbols (abfd);
1946 /* Count the number of each kind of symbol. */
1947 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1949 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1950 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
1954 cmd->iextdefsym = i;
1955 for (; i < bfd_get_symcount (abfd); ++i)
1957 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1958 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
1961 cmd->nextdefsym = i - cmd->nlocalsym;
1962 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
1963 cmd->nundefsym = bfd_get_symcount (abfd)
1970 cmd->iextdefsym = 0;
1971 cmd->nextdefsym = 0;
1976 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
1977 if (cmd->nindirectsyms > 0)
1982 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
1983 cmd->indirectsymoff = mdata->filelen;
1984 mdata->filelen += cmd->nindirectsyms * 4;
1986 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
1987 if (cmd->indirect_syms == NULL)
1991 for (i = 0; i < mdata->nsects; ++i)
1993 bfd_mach_o_section *sec = mdata->sections[i];
1995 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1997 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1998 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1999 case BFD_MACH_O_S_SYMBOL_STUBS:
2002 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
2004 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2005 if (isyms == NULL || num == 0)
2007 /* Record the starting index in the reserved1 field. */
2009 for (j = 0; j < num; j++, n++)
2011 if (isyms[j] == NULL)
2012 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
2013 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
2014 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
2015 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
2016 | BFD_MACH_O_INDIRECT_SYM_ABS;
2018 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
2031 /* Write a dysymtab command.
2032 TODO: Possibly coalesce writes of smaller objects. */
2035 bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2037 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2039 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2041 if (cmd->nmodtab != 0)
2045 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2048 for (i = 0; i < cmd->nmodtab; i++)
2050 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2054 iinit = module->iinit & 0xffff;
2055 iinit |= ((module->iterm & 0xffff) << 16);
2057 ninit = module->ninit & 0xffff;
2058 ninit |= ((module->nterm & 0xffff) << 16);
2060 if (bfd_mach_o_wide_p (abfd))
2062 struct mach_o_dylib_module_64_external w;
2064 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2065 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2066 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2067 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2068 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2069 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2070 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2071 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2072 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2073 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2074 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2075 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2076 &w.objc_module_info_addr);
2077 bfd_h_put_32 (abfd, module->objc_module_info_size,
2078 &w.objc_module_info_size);
2080 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2085 struct mach_o_dylib_module_external n;
2087 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2088 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2089 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2090 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2091 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2092 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2093 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2094 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2095 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2096 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2097 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2098 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2099 &n.objc_module_info_addr);
2100 bfd_h_put_32 (abfd, module->objc_module_info_size,
2101 &n.objc_module_info_size);
2103 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2113 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2116 for (i = 0; i < cmd->ntoc; i++)
2118 struct mach_o_dylib_table_of_contents_external raw;
2119 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2121 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2122 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2124 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2129 if (cmd->nindirectsyms > 0)
2133 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2136 for (i = 0; i < cmd->nindirectsyms; ++i)
2138 unsigned char raw[4];
2140 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2141 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2146 if (cmd->nextrefsyms != 0)
2150 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2153 for (i = 0; i < cmd->nextrefsyms; i++)
2156 unsigned char raw[4];
2157 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2159 /* Fields isym and flags are written as bit-fields, thus we need
2160 a specific processing for endianness. */
2162 if (bfd_big_endian (abfd))
2164 v = ((ref->isym & 0xffffff) << 8);
2165 v |= ref->flags & 0xff;
2169 v = ref->isym & 0xffffff;
2170 v |= ((ref->flags & 0xff) << 24);
2173 bfd_h_put_32 (abfd, v, raw);
2174 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2180 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2184 struct mach_o_dysymtab_command_external raw;
2186 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2187 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2188 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2189 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2190 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2191 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2192 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2193 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2194 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2195 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2196 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2197 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2198 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2199 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2200 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2201 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2202 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2203 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2205 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2213 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
2215 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
2217 /* Just leave debug symbols where they are (pretend they are local, and
2218 then they will just be sorted on position). */
2219 if (s->n_type & BFD_MACH_O_N_STAB)
2222 /* Local (we should never see an undefined local AFAICT). */
2223 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
2226 /* Common symbols look like undefined externs. */
2227 if (mtyp == BFD_MACH_O_N_UNDF)
2230 /* A defined non-local, non-debug symbol. */
2235 bfd_mach_o_cf_symbols (const void *a, const void *b)
2237 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2238 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2239 unsigned int soa, sob;
2241 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2242 sob = bfd_mach_o_primary_symbol_sort_key (sb);
2249 /* If it's local or stab, just preserve the input order. */
2252 if (sa->symbol.udata.i < sb->symbol.udata.i)
2254 if (sa->symbol.udata.i > sb->symbol.udata.i)
2257 /* This is probably an error. */
2261 /* The second sort key is name. */
2262 return strcmp (sa->symbol.name, sb->symbol.name);
2265 /* Process the symbols.
2267 This should be OK for single-module files - but it is not likely to work
2268 for multi-module shared libraries.
2270 (a) If the application has not filled in the relevant mach-o fields, make
2273 (b) Order them, like this:
2276 ( ii) external defined
2278 (iii) external undefined/common
2285 bfd_mach_o_mangle_symbols (bfd *abfd)
2288 asymbol **symbols = bfd_get_outsymbols (abfd);
2290 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2293 for (i = 0; i < bfd_get_symcount (abfd); i++)
2295 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2297 /* We use this value, which is out-of-range as a symbol index, to signal
2298 that the mach-o-specific data are not filled in and need to be created
2299 from the bfd values. It is much preferable for the application to do
2300 this, since more meaningful diagnostics can be made that way. */
2302 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
2304 /* No symbol information has been set - therefore determine
2305 it from the bfd symbol flags/info. */
2306 if (s->symbol.section == bfd_abs_section_ptr)
2307 s->n_type = BFD_MACH_O_N_ABS;
2308 else if (s->symbol.section == bfd_und_section_ptr)
2310 s->n_type = BFD_MACH_O_N_UNDF;
2311 if (s->symbol.flags & BSF_WEAK)
2312 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
2313 /* mach-o automatically makes undefined symbols extern. */
2314 s->n_type |= BFD_MACH_O_N_EXT;
2315 s->symbol.flags |= BSF_GLOBAL;
2317 else if (s->symbol.section == bfd_com_section_ptr)
2319 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2320 s->symbol.flags |= BSF_GLOBAL;
2323 s->n_type = BFD_MACH_O_N_SECT;
2325 if (s->symbol.flags & BSF_GLOBAL)
2326 s->n_type |= BFD_MACH_O_N_EXT;
2329 /* Put the section index in, where required. */
2330 if ((s->symbol.section != bfd_abs_section_ptr
2331 && s->symbol.section != bfd_und_section_ptr
2332 && s->symbol.section != bfd_com_section_ptr)
2333 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2334 && s->symbol.name == NULL))
2335 s->n_sect = s->symbol.section->output_section->target_index;
2337 /* Number to preserve order for local and debug syms. */
2338 s->symbol.udata.i = i;
2341 /* Sort the symbols. */
2342 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2343 sizeof (asymbol *), bfd_mach_o_cf_symbols);
2345 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2347 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2348 s->symbol.udata.i = i; /* renumber. */
2354 /* We build a flat table of sections, which can be re-ordered if necessary.
2355 Fill in the section number and other mach-o-specific data. */
2358 bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2361 unsigned target_index;
2364 nsect = bfd_count_sections (abfd);
2366 /* Don't do it if it's already set - assume the application knows what it's
2368 if (mdata->nsects == nsect
2369 && (mdata->nsects == 0 || mdata->sections != NULL))
2372 /* We need to check that this can be done... */
2375 (*_bfd_error_handler) (_("mach-o: there are too many sections (%u)"
2376 " maximum is 255,\n"), nsect);
2380 mdata->nsects = nsect;
2381 mdata->sections = bfd_alloc (abfd,
2382 mdata->nsects * sizeof (bfd_mach_o_section *));
2383 if (mdata->sections == NULL)
2386 /* Create Mach-O sections.
2387 Section type, attribute and align should have been set when the
2388 section was created - either read in or specified. */
2390 for (sec = abfd->sections; sec; sec = sec->next)
2392 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2393 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2395 mdata->sections[target_index] = msect;
2397 msect->addr = bfd_get_section_vma (abfd, sec);
2398 msect->size = bfd_get_section_size (sec);
2400 /* Use the largest alignment set, in case it was bumped after the
2401 section was created. */
2402 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2405 sec->target_index = ++target_index;
2412 bfd_mach_o_write_contents (bfd *abfd)
2414 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2415 bfd_mach_o_load_command *cmd;
2416 bfd_mach_o_symtab_command *symtab = NULL;
2417 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2418 bfd_mach_o_segment_command *linkedit = NULL;
2420 /* Make the commands, if not already present. */
2421 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2423 abfd->output_has_begun = TRUE;
2425 /* Write the header. */
2426 if (!bfd_mach_o_write_header (abfd, &mdata->header))
2429 /* First pass: allocate the linkedit segment. */
2430 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2433 case BFD_MACH_O_LC_SEGMENT_64:
2434 case BFD_MACH_O_LC_SEGMENT:
2435 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2436 linkedit = &cmd->command.segment;
2438 case BFD_MACH_O_LC_SYMTAB:
2439 symtab = &cmd->command.symtab;
2441 case BFD_MACH_O_LC_DYSYMTAB:
2442 dysymtab = &cmd->command.dysymtab;
2444 case BFD_MACH_O_LC_DYLD_INFO:
2446 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2448 if (di->rebase_size != 0)
2450 di->rebase_off = mdata->filelen;
2451 mdata->filelen += di->rebase_size;
2453 if (di->bind_size != 0)
2455 di->bind_off = mdata->filelen;
2456 mdata->filelen += di->bind_size;
2458 if (di->weak_bind_size != 0)
2460 di->weak_bind_off = mdata->filelen;
2461 mdata->filelen += di->weak_bind_size;
2463 if (di->lazy_bind_size != 0)
2465 di->lazy_bind_off = mdata->filelen;
2466 mdata->filelen += di->lazy_bind_size;
2468 if (di->export_size != 0)
2470 di->export_off = mdata->filelen;
2471 mdata->filelen += di->export_size;
2475 case BFD_MACH_O_LC_LOAD_DYLIB:
2476 case BFD_MACH_O_LC_LOAD_DYLINKER:
2477 case BFD_MACH_O_LC_MAIN:
2478 /* Nothing to do. */
2481 (*_bfd_error_handler)
2482 (_("unable to allocate data for load command 0x%lx"),
2483 (unsigned long) cmd->type);
2487 /* Specially handle symtab and dysymtab. */
2489 /* Pre-allocate the symbol table (but not the string table). The reason
2490 is that the dysymtab is after the symbol table but before the string
2491 table (required by the native strip tool). */
2494 unsigned int symlen;
2495 unsigned int wide = bfd_mach_o_wide_p (abfd);
2497 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2499 /* Align for symbols. */
2500 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2501 symtab->symoff = mdata->filelen;
2503 symtab->nsyms = bfd_get_symcount (abfd);
2504 mdata->filelen += symtab->nsyms * symlen;
2507 /* Build the dysymtab. */
2508 if (dysymtab != NULL)
2509 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2512 /* Write symtab and strtab. */
2514 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2517 /* Adjust linkedit size. */
2518 if (linkedit != NULL)
2520 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2522 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2523 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2524 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2526 linkedit->initprot = BFD_MACH_O_PROT_READ;
2527 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2528 | BFD_MACH_O_PROT_EXECUTE;
2531 /* Second pass: write commands. */
2532 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2534 struct mach_o_load_command_external raw;
2535 unsigned long typeflag;
2537 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
2539 bfd_h_put_32 (abfd, typeflag, raw.cmd);
2540 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
2542 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
2543 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
2548 case BFD_MACH_O_LC_SEGMENT:
2549 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
2552 case BFD_MACH_O_LC_SEGMENT_64:
2553 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
2556 case BFD_MACH_O_LC_SYMTAB:
2557 if (!bfd_mach_o_write_symtab (abfd, cmd))
2560 case BFD_MACH_O_LC_DYSYMTAB:
2561 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
2564 case BFD_MACH_O_LC_THREAD:
2565 case BFD_MACH_O_LC_UNIXTHREAD:
2566 if (!bfd_mach_o_write_thread (abfd, cmd))
2569 case BFD_MACH_O_LC_LOAD_DYLIB:
2570 if (!bfd_mach_o_write_dylib (abfd, cmd))
2573 case BFD_MACH_O_LC_LOAD_DYLINKER:
2574 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2577 case BFD_MACH_O_LC_MAIN:
2578 if (!bfd_mach_o_write_main (abfd, cmd))
2581 case BFD_MACH_O_LC_DYLD_INFO:
2582 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2586 (*_bfd_error_handler)
2587 (_("unable to write unknown load command 0x%lx"),
2588 (unsigned long) cmd->type);
2597 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
2598 bfd_mach_o_section *s)
2600 if (seg->sect_head == NULL)
2603 seg->sect_tail->next = s;
2607 /* Create section Mach-O flags from BFD flags. */
2610 bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2614 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2616 /* Create default flags. */
2617 bfd_flags = bfd_get_section_flags (abfd, sec);
2618 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2619 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2620 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2621 | BFD_MACH_O_S_REGULAR;
2622 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2623 s->flags = BFD_MACH_O_S_ZEROFILL;
2624 else if (bfd_flags & SEC_DEBUGGING)
2625 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2627 s->flags = BFD_MACH_O_S_REGULAR;
2631 bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2633 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2637 seg->fileoff = mdata->filelen;
2638 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2639 | BFD_MACH_O_PROT_EXECUTE;
2640 seg->maxprot = seg->initprot;
2642 /* Append sections to the segment.
2644 This is a little tedious, we have to honor the need to account zerofill
2645 sections after all the rest. This forces us to do the calculation of
2646 total vmsize in three passes so that any alignment increments are
2647 properly accounted. */
2648 for (i = 0; i < mdata->nsects; ++i)
2650 bfd_mach_o_section *s = mdata->sections[i];
2651 asection *sec = s->bfdsection;
2653 /* Although we account for zerofill section sizes in vm order, they are
2654 placed in the file in source sequence. */
2655 bfd_mach_o_append_section_to_segment (seg, s);
2658 /* Zerofill sections have zero file size & offset, the only content
2659 written to the file is the symbols. */
2660 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2661 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2662 == BFD_MACH_O_S_GB_ZEROFILL))
2665 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2666 sections, even those with zero size. */
2669 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2670 seg->vmsize += s->size;
2672 /* MH_OBJECT files have unaligned content. */
2675 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2676 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2678 seg->filesize += s->size;
2680 /* The system tools write even zero-sized sections with an offset
2681 field set to the current file position. */
2682 s->offset = mdata->filelen;
2685 sec->filepos = s->offset;
2686 mdata->filelen += s->size;
2689 /* Now pass through again, for zerofill, only now we just update the
2690 vmsize, and then for zerofill_GB. */
2691 for (j = 0; j < 2; j++)
2696 stype = BFD_MACH_O_S_ZEROFILL;
2698 stype = BFD_MACH_O_S_GB_ZEROFILL;
2700 for (i = 0; i < mdata->nsects; ++i)
2702 bfd_mach_o_section *s = mdata->sections[i];
2704 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2709 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2710 seg->vmsize += s->size;
2715 /* Allocate space for the relocations. */
2716 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2718 for (i = 0; i < mdata->nsects; ++i)
2720 bfd_mach_o_section *ms = mdata->sections[i];
2721 asection *sec = ms->bfdsection;
2723 ms->nreloc = sec->reloc_count;
2724 if (ms->nreloc == 0)
2726 /* Clear nreloc and reloff if there is no relocs. */
2730 sec->rel_filepos = mdata->filelen;
2731 ms->reloff = sec->rel_filepos;
2732 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2739 bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2741 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2743 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2745 bfd_mach_o_section *s;
2749 seg->fileoff = mdata->filelen;
2754 /* Append sections to the segment. We assume they are properly ordered
2755 by vma (but we check that). */
2757 for (i = 0; i < mdata->nsects; ++i)
2759 s = mdata->sections[i];
2761 /* Consider only sections for this segment. */
2762 if (strcmp (seg->segname, s->segname) != 0)
2765 bfd_mach_o_append_section_to_segment (seg, s);
2767 BFD_ASSERT (s->addr >= vma);
2768 vma = s->addr + s->size;
2771 /* Set segment file offset: make it page aligned. */
2772 vma = seg->sect_head->addr;
2773 seg->vmaddr = vma & ~pagemask;
2774 if ((mdata->filelen & pagemask) > (vma & pagemask))
2775 mdata->filelen += pagemask + 1;
2776 seg->fileoff = mdata->filelen & ~pagemask;
2777 mdata->filelen = seg->fileoff + (vma & pagemask);
2779 /* Set section file offset. */
2780 for (s = seg->sect_head; s != NULL; s = s->next)
2782 asection *sec = s->bfdsection;
2783 flagword flags = bfd_get_section_flags (abfd, sec);
2785 /* Adjust segment size. */
2786 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2787 seg->vmsize += s->size;
2789 /* File offset and length. */
2790 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2792 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2793 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2794 != BFD_MACH_O_S_GB_ZEROFILL))
2796 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2798 s->offset = mdata->filelen;
2799 s->bfdsection->filepos = s->offset;
2801 seg->filesize += s->size;
2802 mdata->filelen += s->size;
2807 s->bfdsection->filepos = 0;
2810 /* Set protection. */
2811 if (flags & SEC_LOAD)
2813 if (flags & SEC_CODE)
2814 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
2815 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
2816 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
2819 /* Relocs shouldn't appear in non-object files. */
2820 if (s->bfdsection->reloc_count != 0)
2825 if (seg->initprot != 0)
2826 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2827 | BFD_MACH_O_PROT_EXECUTE;
2831 /* Round segment size (and file size). */
2832 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
2833 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
2834 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
2839 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
2840 fields in header. */
2843 bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
2845 unsigned wide = mach_o_wide_p (&mdata->header);
2846 unsigned int hdrlen;
2848 bfd_mach_o_load_command *cmd;
2851 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2852 align = wide ? 8 - 1 : 4 - 1;
2854 mdata->header.ncmds = 0;
2856 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
2858 mdata->header.ncmds++;
2859 cmd->offset = offset;
2863 case BFD_MACH_O_LC_SEGMENT_64:
2864 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2865 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
2867 case BFD_MACH_O_LC_SEGMENT:
2868 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2869 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
2871 case BFD_MACH_O_LC_SYMTAB:
2872 cmd->len = sizeof (struct mach_o_symtab_command_external)
2873 + BFD_MACH_O_LC_SIZE;
2875 case BFD_MACH_O_LC_DYSYMTAB:
2876 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2877 + BFD_MACH_O_LC_SIZE;
2879 case BFD_MACH_O_LC_LOAD_DYLIB:
2880 cmd->len = sizeof (struct mach_o_dylib_command_external)
2881 + BFD_MACH_O_LC_SIZE;
2882 cmd->command.dylib.name_offset = cmd->len;
2883 cmd->len += strlen (cmd->command.dylib.name_str);
2884 cmd->len = (cmd->len + align) & ~align;
2886 case BFD_MACH_O_LC_LOAD_DYLINKER:
2887 cmd->len = sizeof (struct mach_o_str_command_external)
2888 + BFD_MACH_O_LC_SIZE;
2889 cmd->command.dylinker.name_offset = cmd->len;
2890 cmd->len += strlen (cmd->command.dylinker.name_str);
2891 cmd->len = (cmd->len + align) & ~align;
2893 case BFD_MACH_O_LC_MAIN:
2894 cmd->len = sizeof (struct mach_o_entry_point_command_external)
2895 + BFD_MACH_O_LC_SIZE;
2897 case BFD_MACH_O_LC_DYLD_INFO:
2898 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
2899 + BFD_MACH_O_LC_SIZE;
2902 (*_bfd_error_handler)
2903 (_("unable to layout unknown load command 0x%lx"),
2904 (unsigned long) cmd->type);
2908 BFD_ASSERT (cmd->len % (align + 1) == 0);
2911 mdata->header.sizeofcmds = offset - hdrlen;
2912 mdata->filelen = offset;
2915 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
2919 bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
2920 bfd_mach_o_load_command *cmd,
2921 const char *segname, unsigned int nbr_sect)
2923 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2924 unsigned wide = mach_o_wide_p (&mdata->header);
2926 /* Init segment command. */
2927 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
2928 cmd->type_required = FALSE;
2930 strcpy (seg->segname, segname);
2931 seg->nsects = nbr_sect;
2941 seg->sect_head = NULL;
2942 seg->sect_tail = NULL;
2945 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2946 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2947 and copy functionality. */
2950 bfd_mach_o_build_commands (bfd *abfd)
2952 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2953 unsigned wide = mach_o_wide_p (&mdata->header);
2954 unsigned int nbr_segcmd = 0;
2955 bfd_mach_o_load_command *commands;
2956 unsigned int nbr_commands;
2957 int symtab_idx = -1;
2958 int dysymtab_idx = -1;
2962 /* Return now if already built. */
2963 if (mdata->header.ncmds != 0)
2966 /* Fill in the file type, if not already set. */
2967 if (mdata->header.filetype == 0)
2969 if (abfd->flags & EXEC_P)
2970 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2971 else if (abfd->flags & DYNAMIC)
2972 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2974 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
2977 /* If hasn't already been done, flatten sections list, and sort
2978 if/when required. Must be done before the symbol table is adjusted,
2979 since that depends on properly numbered sections. */
2980 if (mdata->nsects == 0 || mdata->sections == NULL)
2981 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2984 /* Order the symbol table, fill-in/check mach-o specific fields and
2985 partition out any indirect symbols. */
2986 if (!bfd_mach_o_mangle_symbols (abfd))
2989 /* Segment commands. */
2990 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
2992 /* Only one segment for all the sections. But the segment is
2993 optional if there is no sections. */
2994 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
2998 bfd_mach_o_section *prev_sect = NULL;
3000 /* One pagezero segment and one linkedit segment. */
3003 /* Create one segment for associated segment name in sections.
3004 Assume that sections with the same segment name are consecutive. */
3005 for (i = 0; i < mdata->nsects; i++)
3007 bfd_mach_o_section *this_sect = mdata->sections[i];
3009 if (prev_sect == NULL
3010 || strcmp (prev_sect->segname, this_sect->segname) != 0)
3013 prev_sect = this_sect;
3018 nbr_commands = nbr_segcmd;
3020 /* One command for the symbol table (only if there are symbols. */
3021 if (bfd_get_symcount (abfd) > 0)
3022 symtab_idx = nbr_commands++;
3025 This is a rather crude test for whether we should build a dysymtab. */
3026 if (bfd_mach_o_should_emit_dysymtab ()
3027 && bfd_get_symcount (abfd))
3029 /* If there should be a case where a dysymtab could be emitted without
3030 a symtab (seems improbable), this would need amending. */
3031 dysymtab_idx = nbr_commands++;
3034 /* Add an entry point command. */
3035 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3036 && bfd_get_start_address (abfd) != 0)
3037 main_idx = nbr_commands++;
3039 /* Well, we must have a header, at least. */
3040 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3042 /* A bit unusual, but no content is valid;
3043 as -n empty.s -o empty.o */
3044 if (nbr_commands == 0)
3046 /* Layout commands (well none...) and set headers command fields. */
3047 bfd_mach_o_layout_commands (mdata);
3051 /* Create commands for segments (and symtabs), prepend them. */
3052 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3053 if (commands == NULL)
3055 for (i = 0; i < nbr_commands - 1; i++)
3056 commands[i].next = &commands[i + 1];
3057 commands[nbr_commands - 1].next = mdata->first_command;
3058 if (mdata->first_command == NULL)
3059 mdata->last_command = &commands[nbr_commands - 1];
3060 mdata->first_command = &commands[0];
3062 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3064 /* For object file, there is only one segment. */
3065 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3067 else if (nbr_segcmd != 0)
3069 bfd_mach_o_load_command *cmd;
3071 BFD_ASSERT (nbr_segcmd >= 2);
3075 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3077 /* Segments from sections. */
3079 for (i = 0; i < mdata->nsects;)
3081 const char *segname = mdata->sections[i]->segname;
3082 unsigned int nbr_sect = 1;
3084 /* Count number of sections for this segment. */
3085 for (i++; i < mdata->nsects; i++)
3086 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3091 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3096 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
3099 if (symtab_idx >= 0)
3101 /* Init symtab command. */
3102 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
3104 cmd->type = BFD_MACH_O_LC_SYMTAB;
3105 cmd->type_required = FALSE;
3108 /* If required, setup symtab command, see comment above about the quality
3110 if (dysymtab_idx >= 0)
3112 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
3114 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
3115 cmd->type_required = FALSE;
3118 /* Create the main command. */
3121 bfd_mach_o_load_command *cmd = &commands[main_idx];
3123 cmd->type = BFD_MACH_O_LC_MAIN;
3124 cmd->type_required = TRUE;
3126 cmd->command.main.entryoff = 0;
3127 cmd->command.main.stacksize = 0;
3130 /* Layout commands. */
3131 bfd_mach_o_layout_commands (mdata);
3133 /* So, now we have sized the commands and the filelen set to that.
3134 Now we can build the segment command and set the section file offsets. */
3135 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3137 for (i = 0; i < nbr_segcmd; i++)
3138 if (!bfd_mach_o_build_obj_seg_command
3139 (abfd, &commands[i].command.segment))
3146 /* Skip pagezero and linkedit segments. */
3147 for (i = 1; i < nbr_segcmd - 1; i++)
3149 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3151 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3154 if (seg->vmaddr + seg->vmsize > maxvma)
3155 maxvma = seg->vmaddr + seg->vmsize;
3158 /* Set the size of __PAGEZERO. */
3159 commands[0].command.segment.vmsize =
3160 commands[1].command.segment.vmaddr;
3162 /* Set the vma and fileoff of __LINKEDIT. */
3163 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3164 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3166 /* Set entry point (once segments have been laid out). */
3168 commands[main_idx].command.main.entryoff =
3169 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3175 /* Set the contents of a section. */
3178 bfd_mach_o_set_section_contents (bfd *abfd,
3180 const void * location,
3182 bfd_size_type count)
3186 /* Trying to write the first section contents will trigger the creation of
3187 the load commands if they are not already present. */
3188 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
3194 pos = section->filepos + offset;
3195 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3196 || bfd_bwrite (location, count, abfd) != count)
3203 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
3204 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3209 /* Make an empty symbol. This is required only because
3210 bfd_make_section_anyway wants to create a symbol for the section. */
3213 bfd_mach_o_make_empty_symbol (bfd *abfd)
3215 asymbol *new_symbol;
3217 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3218 if (new_symbol == NULL)
3220 new_symbol->the_bfd = abfd;
3221 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
3226 bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
3228 struct mach_o_header_external raw;
3230 bfd_vma (*get32) (const void *) = NULL;
3232 /* Just read the magic number. */
3233 if (bfd_seek (abfd, 0, SEEK_SET) != 0
3234 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
3237 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3239 header->byteorder = BFD_ENDIAN_BIG;
3240 header->magic = BFD_MACH_O_MH_MAGIC;
3241 header->version = 1;
3244 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3246 header->byteorder = BFD_ENDIAN_LITTLE;
3247 header->magic = BFD_MACH_O_MH_MAGIC;
3248 header->version = 1;
3251 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3253 header->byteorder = BFD_ENDIAN_BIG;
3254 header->magic = BFD_MACH_O_MH_MAGIC_64;
3255 header->version = 2;
3258 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3260 header->byteorder = BFD_ENDIAN_LITTLE;
3261 header->magic = BFD_MACH_O_MH_MAGIC_64;
3262 header->version = 2;
3267 header->byteorder = BFD_ENDIAN_UNKNOWN;
3271 /* Once the size of the header is known, read the full header. */
3272 size = mach_o_wide_p (header) ?
3273 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3275 if (bfd_seek (abfd, 0, SEEK_SET) != 0
3276 || bfd_bread (&raw, size, abfd) != size)
3279 header->cputype = (*get32) (raw.cputype);
3280 header->cpusubtype = (*get32) (raw.cpusubtype);
3281 header->filetype = (*get32) (raw.filetype);
3282 header->ncmds = (*get32) (raw.ncmds);
3283 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3284 header->flags = (*get32) (raw.flags);
3286 if (mach_o_wide_p (header))
3287 header->reserved = (*get32) (raw.reserved);
3289 header->reserved = 0;
3295 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3297 bfd_mach_o_section *s;
3298 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
3300 s = bfd_mach_o_get_mach_o_section (sec);
3304 static const mach_o_section_name_xlat * xlat;
3306 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3309 sec->used_by_bfd = s;
3310 s->bfdsection = sec;
3312 /* Create the Darwin seg/sect name pair from the bfd name.
3313 If this is a canonical name for which a specific paiting exists
3314 there will also be defined flags, type, attribute and alignment
3316 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3319 s->flags = xlat->macho_sectype | xlat->macho_secattr;
3320 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
3322 (void) bfd_set_section_alignment (abfd, sec, s->align);
3323 bfd_flags = bfd_get_section_flags (abfd, sec);
3324 if (bfd_flags == SEC_NO_FLAGS)
3325 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3328 /* Create default flags. */
3329 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
3332 return _bfd_generic_new_section_hook (abfd, sec);
3336 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3340 bfd_mach_o_section *section;
3342 flags = bfd_get_section_flags (abfd, sec);
3343 section = bfd_mach_o_get_mach_o_section (sec);
3345 /* TODO: see if we should use the xlat system for doing this by
3346 preference and fall back to this for unknown sections. */
3348 if (flags == SEC_NO_FLAGS)
3350 /* Try to guess flags. */
3351 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3352 flags = SEC_DEBUGGING;
3356 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3357 != BFD_MACH_O_S_ZEROFILL)
3360 if (prot & BFD_MACH_O_PROT_EXECUTE)
3362 if (prot & BFD_MACH_O_PROT_WRITE)
3364 else if (prot & BFD_MACH_O_PROT_READ)
3365 flags |= SEC_READONLY;
3371 if ((flags & SEC_DEBUGGING) == 0)
3375 if (section->offset != 0)
3376 flags |= SEC_HAS_CONTENTS;
3377 if (section->nreloc != 0)
3380 bfd_set_section_flags (abfd, sec, flags);
3382 sec->vma = section->addr;
3383 sec->lma = section->addr;
3384 sec->size = section->size;
3385 sec->filepos = section->offset;
3386 sec->alignment_power = section->align;
3387 sec->segment_mark = 0;
3388 sec->reloc_count = section->nreloc;
3389 sec->rel_filepos = section->reloff;
3393 bfd_mach_o_make_bfd_section (bfd *abfd,
3394 const unsigned char *segname,
3395 const unsigned char *sectname)
3400 bfd_mach_o_convert_section_name_to_bfd
3401 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3405 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3409 bfd_mach_o_read_section_32 (bfd *abfd,
3410 unsigned int offset,
3413 struct mach_o_section_32_external raw;
3415 bfd_mach_o_section *section;
3417 if (bfd_seek (abfd, offset, SEEK_SET) != 0
3418 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3419 != BFD_MACH_O_SECTION_SIZE))
3422 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3426 section = bfd_mach_o_get_mach_o_section (sec);
3427 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3428 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3429 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3430 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3431 section->addr = bfd_h_get_32 (abfd, raw.addr);
3432 section->size = bfd_h_get_32 (abfd, raw.size);
3433 section->offset = bfd_h_get_32 (abfd, raw.offset);
3434 section->align = bfd_h_get_32 (abfd, raw.align);
3435 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3436 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3437 section->flags = bfd_h_get_32 (abfd, raw.flags);
3438 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3439 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3440 section->reserved3 = 0;
3442 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3448 bfd_mach_o_read_section_64 (bfd *abfd,
3449 unsigned int offset,
3452 struct mach_o_section_64_external raw;
3454 bfd_mach_o_section *section;
3456 if (bfd_seek (abfd, offset, SEEK_SET) != 0
3457 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3458 != BFD_MACH_O_SECTION_64_SIZE))
3461 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3465 section = bfd_mach_o_get_mach_o_section (sec);
3466 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3467 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3468 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3469 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3470 section->addr = bfd_h_get_64 (abfd, raw.addr);
3471 section->size = bfd_h_get_64 (abfd, raw.size);
3472 section->offset = bfd_h_get_32 (abfd, raw.offset);
3473 section->align = bfd_h_get_32 (abfd, raw.align);
3474 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3475 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3476 section->flags = bfd_h_get_32 (abfd, raw.flags);
3477 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3478 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3479 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3481 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3487 bfd_mach_o_read_section (bfd *abfd,
3488 unsigned int offset,
3493 return bfd_mach_o_read_section_64 (abfd, offset, prot);
3495 return bfd_mach_o_read_section_32 (abfd, offset, prot);
3499 bfd_mach_o_read_symtab_symbol (bfd *abfd,
3500 bfd_mach_o_symtab_command *sym,
3501 bfd_mach_o_asymbol *s,
3504 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3505 unsigned int wide = mach_o_wide_p (&mdata->header);
3506 unsigned int symwidth =
3507 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
3508 unsigned int symoff = sym->symoff + (i * symwidth);
3509 struct mach_o_nlist_64_external raw;
3510 unsigned char type = -1;
3511 unsigned char section = -1;
3513 symvalue value = -1;
3514 unsigned long stroff = -1;
3515 unsigned int symtype = -1;
3517 BFD_ASSERT (sym->strtab != NULL);
3519 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
3520 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3522 (*_bfd_error_handler)
3523 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
3524 symwidth, (unsigned long) symoff);
3528 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3529 type = bfd_h_get_8 (abfd, raw.n_type);
3530 symtype = type & BFD_MACH_O_N_TYPE;
3531 section = bfd_h_get_8 (abfd, raw.n_sect);
3532 desc = bfd_h_get_16 (abfd, raw.n_desc);
3534 value = bfd_h_get_64 (abfd, raw.n_value);
3536 value = bfd_h_get_32 (abfd, raw.n_value);
3538 if (stroff >= sym->strsize)
3540 (*_bfd_error_handler)
3541 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
3542 (unsigned long) stroff,
3543 (unsigned long) sym->strsize);
3547 s->symbol.the_bfd = abfd;
3548 s->symbol.name = sym->strtab + stroff;
3549 s->symbol.value = value;
3550 s->symbol.flags = 0x0;
3551 s->symbol.udata.i = i;
3553 s->n_sect = section;
3556 if (type & BFD_MACH_O_N_STAB)
3558 s->symbol.flags |= BSF_DEBUGGING;
3559 s->symbol.section = bfd_und_section_ptr;
3571 if ((section > 0) && (section <= mdata->nsects))
3573 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3575 s->symbol.value - mdata->sections[section - 1]->addr;
3582 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
3583 s->symbol.flags |= BSF_GLOBAL;
3585 s->symbol.flags |= BSF_LOCAL;
3589 case BFD_MACH_O_N_UNDF:
3590 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3591 && s->symbol.value != 0)
3593 /* A common symbol. */
3594 s->symbol.section = bfd_com_section_ptr;
3595 s->symbol.flags = BSF_NO_FLAGS;
3599 s->symbol.section = bfd_und_section_ptr;
3600 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3601 s->symbol.flags |= BSF_WEAK;
3604 case BFD_MACH_O_N_PBUD:
3605 s->symbol.section = bfd_und_section_ptr;
3607 case BFD_MACH_O_N_ABS:
3608 s->symbol.section = bfd_abs_section_ptr;
3610 case BFD_MACH_O_N_SECT:
3611 if ((section > 0) && (section <= mdata->nsects))
3613 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3615 s->symbol.value - mdata->sections[section - 1]->addr;
3619 /* Mach-O uses 0 to mean "no section"; not an error. */
3622 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3623 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
3624 s->symbol.name, section, mdata->nsects);
3626 s->symbol.section = bfd_und_section_ptr;
3629 case BFD_MACH_O_N_INDR:
3630 /* FIXME: we don't follow the BFD convention as this indirect symbol
3631 won't be followed by the referenced one. This looks harmless
3632 unless we start using the linker. */
3633 s->symbol.flags |= BSF_INDIRECT;
3634 s->symbol.section = bfd_ind_section_ptr;
3635 s->symbol.value = 0;
3638 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3639 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
3640 s->symbol.name, symtype);
3641 s->symbol.section = bfd_und_section_ptr;
3650 bfd_mach_o_read_symtab_strtab (bfd *abfd)
3652 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3653 bfd_mach_o_symtab_command *sym = mdata->symtab;
3655 /* Fail if there is no symtab. */
3659 /* Success if already loaded. */
3663 if (abfd->flags & BFD_IN_MEMORY)
3665 struct bfd_in_memory *b;
3667 b = (struct bfd_in_memory *) abfd->iostream;
3669 if ((sym->stroff + sym->strsize) > b->size)
3671 bfd_set_error (bfd_error_file_truncated);
3674 sym->strtab = (char *) b->buffer + sym->stroff;
3678 sym->strtab = bfd_alloc (abfd, sym->strsize + 1);
3679 if (sym->strtab == NULL)
3682 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
3683 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3685 /* PR 17512: file: 10888-1609-0.004. */
3686 bfd_release (abfd, sym->strtab);
3688 bfd_set_error (bfd_error_file_truncated);
3691 /* Zero terminate the string table. */
3692 sym->strtab[sym->strsize] = 0;
3699 bfd_mach_o_read_symtab_symbols (bfd *abfd)
3701 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3702 bfd_mach_o_symtab_command *sym = mdata->symtab;
3705 if (sym == NULL || sym->symbols)
3706 /* Return now if there are no symbols or if already loaded. */
3709 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
3711 if (sym->symbols == NULL)
3713 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
3717 if (!bfd_mach_o_read_symtab_strtab (abfd))
3719 bfd_release (abfd, sym->symbols);
3720 sym->symbols = NULL;
3724 for (i = 0; i < sym->nsyms; i++)
3726 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3728 bfd_release (abfd, sym->symbols);
3729 sym->symbols = NULL;
3738 bfd_mach_o_i386_flavour_string (unsigned int flavour)
3740 switch ((int) flavour)
3742 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3743 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3744 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3745 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3746 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3747 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3748 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3749 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3750 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3751 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3752 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3753 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
3754 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3755 default: return "UNKNOWN";
3760 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3762 switch ((int) flavour)
3764 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3765 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3766 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3767 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3768 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3769 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3770 default: return "UNKNOWN";
3775 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3777 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
3778 struct mach_o_str_command_external raw;
3779 unsigned int nameoff;
3780 unsigned int namelen;
3782 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3783 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3786 nameoff = bfd_h_get_32 (abfd, raw.str);
3788 cmd->name_offset = nameoff;
3789 namelen = command->len - nameoff;
3790 nameoff += command->offset;
3791 cmd->name_str = bfd_alloc (abfd, namelen);
3792 if (cmd->name_str == NULL)
3794 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3795 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3801 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3803 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
3804 struct mach_o_dylib_command_external raw;
3805 unsigned int nameoff;
3806 unsigned int namelen;
3808 switch (command->type)
3810 case BFD_MACH_O_LC_LOAD_DYLIB:
3811 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3812 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3813 case BFD_MACH_O_LC_ID_DYLIB:
3814 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3815 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3822 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3823 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3826 nameoff = bfd_h_get_32 (abfd, raw.name);
3827 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3828 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3829 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3831 cmd->name_offset = command->offset + nameoff;
3832 namelen = command->len - nameoff;
3833 cmd->name_str = bfd_alloc (abfd, namelen);
3834 if (cmd->name_str == NULL)
3836 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3837 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3843 bfd_mach_o_read_prebound_dylib (bfd *abfd,
3844 bfd_mach_o_load_command *command)
3846 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
3847 struct mach_o_prebound_dylib_command_external raw;
3848 unsigned int nameoff;
3849 unsigned int modoff;
3850 unsigned int str_len;
3853 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3854 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3857 nameoff = bfd_h_get_32 (abfd, raw.name);
3858 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
3859 if (nameoff > command->len || modoff > command->len)
3862 str_len = command->len - sizeof (raw);
3863 str = bfd_alloc (abfd, str_len);
3866 if (bfd_bread (str, str_len, abfd) != str_len)
3869 cmd->name_offset = command->offset + nameoff;
3870 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
3871 cmd->linked_modules_offset = command->offset + modoff;
3873 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3874 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3879 bfd_mach_o_read_prebind_cksum (bfd *abfd,
3880 bfd_mach_o_load_command *command)
3882 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
3883 struct mach_o_prebind_cksum_command_external raw;
3885 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3886 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3889 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
3894 bfd_mach_o_read_twolevel_hints (bfd *abfd,
3895 bfd_mach_o_load_command *command)
3897 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
3898 struct mach_o_twolevel_hints_command_external raw;
3900 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3901 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3904 cmd->offset = bfd_get_32 (abfd, raw.offset);
3905 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
3910 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3912 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3913 struct mach_o_fvmlib_command_external raw;
3914 unsigned int nameoff;
3915 unsigned int namelen;
3917 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3918 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3921 nameoff = bfd_h_get_32 (abfd, raw.name);
3922 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3923 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3925 fvm->name_offset = command->offset + nameoff;
3926 namelen = command->len - nameoff;
3927 fvm->name_str = bfd_alloc (abfd, namelen);
3928 if (fvm->name_str == NULL)
3930 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3931 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
3937 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3939 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3940 bfd_mach_o_thread_command *cmd = &command->command.thread;
3941 unsigned int offset;
3942 unsigned int nflavours;
3945 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3946 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3948 /* Count the number of threads. */
3951 while (offset != command->len)
3953 struct mach_o_thread_command_external raw;
3955 if (offset >= command->len)
3958 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3959 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3962 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3966 /* Allocate threads. */
3967 cmd->flavours = bfd_alloc
3968 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3969 if (cmd->flavours == NULL)
3971 cmd->nflavours = nflavours;
3975 while (offset != command->len)
3977 struct mach_o_thread_command_external raw;
3979 if (offset >= command->len)
3982 if (nflavours >= cmd->nflavours)
3985 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
3986 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3989 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3990 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3991 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3992 offset += cmd->flavours[nflavours].size + sizeof (raw);
3996 for (i = 0; i < nflavours; i++)
3999 unsigned int snamelen;
4001 const char *flavourstr;
4002 const char *prefix = "LC_THREAD";
4005 switch (mdata->header.cputype)
4007 case BFD_MACH_O_CPU_TYPE_POWERPC:
4008 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
4010 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
4012 case BFD_MACH_O_CPU_TYPE_I386:
4013 case BFD_MACH_O_CPU_TYPE_X86_64:
4015 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
4018 flavourstr = "UNKNOWN_ARCHITECTURE";
4022 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
4023 sname = bfd_alloc (abfd, snamelen);
4029 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4030 if (bfd_get_section_by_name (abfd, sname) == NULL)
4035 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
4039 bfdsec->size = cmd->flavours[i].size;
4040 bfdsec->filepos = cmd->flavours[i].offset;
4041 bfdsec->alignment_power = 0x0;
4043 cmd->section = bfdsec;
4050 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
4052 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
4053 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4055 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4058 struct mach_o_dysymtab_command_external raw;
4060 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4061 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4064 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4065 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4066 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4067 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4068 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4069 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4070 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4071 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4072 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4073 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4074 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4075 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4076 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4077 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4078 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4079 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4080 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4081 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4084 if (cmd->nmodtab != 0)
4087 int wide = bfd_mach_o_wide_p (abfd);
4088 unsigned int module_len = wide ? 56 : 52;
4091 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
4092 if (cmd->dylib_module == NULL)
4095 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
4098 for (i = 0; i < cmd->nmodtab; i++)
4100 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4102 unsigned char buf[56];
4104 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4107 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4108 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4109 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4110 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4111 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4112 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4113 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4114 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4115 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4116 v = bfd_h_get_32 (abfd, buf +36);
4117 module->iinit = v & 0xffff;
4118 module->iterm = (v >> 16) & 0xffff;
4119 v = bfd_h_get_32 (abfd, buf + 40);
4120 module->ninit = v & 0xffff;
4121 module->nterm = (v >> 16) & 0xffff;
4124 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4125 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4129 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4130 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4139 cmd->dylib_toc = bfd_alloc
4140 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
4141 if (cmd->dylib_toc == NULL)
4144 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
4147 for (i = 0; i < cmd->ntoc; i++)
4149 struct mach_o_dylib_table_of_contents_external raw;
4150 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4152 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4155 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4156 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4160 if (cmd->nindirectsyms != 0)
4164 cmd->indirect_syms = bfd_alloc
4165 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
4166 if (cmd->indirect_syms == NULL)
4169 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
4172 for (i = 0; i < cmd->nindirectsyms; i++)
4174 unsigned char raw[4];
4175 unsigned int *is = &cmd->indirect_syms[i];
4177 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4180 *is = bfd_h_get_32 (abfd, raw);
4184 if (cmd->nextrefsyms != 0)
4189 cmd->ext_refs = bfd_alloc
4190 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
4191 if (cmd->ext_refs == NULL)
4194 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
4197 for (i = 0; i < cmd->nextrefsyms; i++)
4199 unsigned char raw[4];
4200 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4202 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4205 /* Fields isym and flags are written as bit-fields, thus we need
4206 a specific processing for endianness. */
4207 v = bfd_h_get_32 (abfd, raw);
4208 if (bfd_big_endian (abfd))
4210 ref->isym = (v >> 8) & 0xffffff;
4211 ref->flags = v & 0xff;
4215 ref->isym = v & 0xffffff;
4216 ref->flags = (v >> 24) & 0xff;
4221 if (mdata->dysymtab)
4223 mdata->dysymtab = cmd;
4229 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
4231 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4232 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4233 struct mach_o_symtab_command_external raw;
4235 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4237 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4238 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4241 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4242 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4243 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4244 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
4245 symtab->symbols = NULL;
4246 symtab->strtab = NULL;
4248 if (symtab->nsyms != 0)
4249 abfd->flags |= HAS_SYMS;
4253 mdata->symtab = symtab;
4258 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
4260 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
4262 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4264 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4265 || bfd_bread (cmd->uuid, 16, abfd) != 16)
4272 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
4274 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
4275 struct mach_o_linkedit_data_command_external raw;
4277 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4278 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4281 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4282 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
4287 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
4289 bfd_mach_o_str_command *cmd = &command->command.str;
4290 struct mach_o_str_command_external raw;
4293 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4294 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4297 off = bfd_get_32 (abfd, raw.str);
4298 cmd->stroff = command->offset + off;
4299 cmd->str_len = command->len - off;
4300 cmd->str = bfd_alloc (abfd, cmd->str_len);
4301 if (cmd->str == NULL)
4303 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
4304 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
4309 static unsigned char *
4310 bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4314 buf = bfd_alloc (abfd, size);
4317 if (bfd_seek (abfd, off, SEEK_SET) != 0
4318 || bfd_bread (buf, size, abfd) != size)
4324 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4326 /* Read rebase content. */
4327 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4329 cmd->rebase_content =
4330 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4331 if (cmd->rebase_content == NULL)
4335 /* Read bind content. */
4336 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4339 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4340 if (cmd->bind_content == NULL)
4344 /* Read weak bind content. */
4345 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4347 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4348 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4349 if (cmd->weak_bind_content == NULL)
4353 /* Read lazy bind content. */
4354 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4356 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4357 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4358 if (cmd->lazy_bind_content == NULL)
4362 /* Read export content. */
4363 if (cmd->export_content == NULL && cmd->export_size != 0)
4365 cmd->export_content = bfd_mach_o_alloc_and_read
4366 (abfd, cmd->export_off, cmd->export_size);
4367 if (cmd->export_content == NULL)
4375 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
4377 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
4378 struct mach_o_dyld_info_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 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4385 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
4386 cmd->rebase_content = NULL;
4387 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4388 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
4389 cmd->bind_content = NULL;
4390 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4391 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
4392 cmd->weak_bind_content = NULL;
4393 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4394 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
4395 cmd->lazy_bind_content = NULL;
4396 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4397 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
4398 cmd->export_content = NULL;
4403 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4405 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4406 struct mach_o_version_min_command_external raw;
4409 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4410 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4413 ver = bfd_get_32 (abfd, raw.version);
4414 cmd->rel = ver >> 16;
4415 cmd->maj = ver >> 8;
4417 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4422 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4424 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4425 struct mach_o_encryption_info_command_external raw;
4427 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4428 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4431 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4432 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4433 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4438 bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4440 bfd_mach_o_main_command *cmd = &command->command.main;
4441 struct mach_o_entry_point_command_external raw;
4443 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4444 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4447 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4448 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4453 bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4455 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4456 struct mach_o_source_version_command_external raw;
4459 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4460 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4463 ver = bfd_get_64 (abfd, raw.version);
4464 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4465 generates warnings) in case of the host doesn't support 64 bit
4467 cmd->e = ver & 0x3ff;
4469 cmd->d = ver & 0x3ff;
4471 cmd->c = ver & 0x3ff;
4473 cmd->b = ver & 0x3ff;
4475 cmd->a = ver & 0xffffff;
4480 bfd_mach_o_read_segment (bfd *abfd,
4481 bfd_mach_o_load_command *command,
4484 bfd_mach_o_segment_command *seg = &command->command.segment;
4489 struct mach_o_segment_command_64_external raw;
4491 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
4493 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4494 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4497 memcpy (seg->segname, raw.segname, 16);
4498 seg->segname[16] = '\0';
4500 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4501 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4502 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4503 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4504 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4505 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4506 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4507 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4511 struct mach_o_segment_command_32_external raw;
4513 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4515 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4516 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4519 memcpy (seg->segname, raw.segname, 16);
4520 seg->segname[16] = '\0';
4522 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4523 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4524 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4525 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4526 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4527 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4528 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4529 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4531 seg->sect_head = NULL;
4532 seg->sect_tail = NULL;
4534 for (i = 0; i < seg->nsects; i++)
4540 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
4541 + (i * BFD_MACH_O_SECTION_64_SIZE);
4543 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
4544 + (i * BFD_MACH_O_SECTION_SIZE);
4546 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
4550 bfd_mach_o_append_section_to_segment
4551 (seg, bfd_mach_o_get_mach_o_section (sec));
4558 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
4560 return bfd_mach_o_read_segment (abfd, command, 0);
4564 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
4566 return bfd_mach_o_read_segment (abfd, command, 1);
4570 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
4572 struct mach_o_load_command_external raw;
4575 /* Read command type and length. */
4576 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
4577 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
4580 cmd = bfd_h_get_32 (abfd, raw.cmd);
4581 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4582 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4583 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
4585 switch (command->type)
4587 case BFD_MACH_O_LC_SEGMENT:
4588 if (!bfd_mach_o_read_segment_32 (abfd, command))
4591 case BFD_MACH_O_LC_SEGMENT_64:
4592 if (!bfd_mach_o_read_segment_64 (abfd, command))
4595 case BFD_MACH_O_LC_SYMTAB:
4596 if (!bfd_mach_o_read_symtab (abfd, command))
4599 case BFD_MACH_O_LC_SYMSEG:
4601 case BFD_MACH_O_LC_THREAD:
4602 case BFD_MACH_O_LC_UNIXTHREAD:
4603 if (!bfd_mach_o_read_thread (abfd, command))
4606 case BFD_MACH_O_LC_LOAD_DYLINKER:
4607 case BFD_MACH_O_LC_ID_DYLINKER:
4608 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
4609 if (!bfd_mach_o_read_dylinker (abfd, command))
4612 case BFD_MACH_O_LC_LOAD_DYLIB:
4613 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
4614 case BFD_MACH_O_LC_ID_DYLIB:
4615 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
4616 case BFD_MACH_O_LC_REEXPORT_DYLIB:
4617 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
4618 if (!bfd_mach_o_read_dylib (abfd, command))
4621 case BFD_MACH_O_LC_PREBOUND_DYLIB:
4622 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4625 case BFD_MACH_O_LC_LOADFVMLIB:
4626 case BFD_MACH_O_LC_IDFVMLIB:
4627 if (!bfd_mach_o_read_fvmlib (abfd, command))
4630 case BFD_MACH_O_LC_IDENT:
4631 case BFD_MACH_O_LC_FVMFILE:
4632 case BFD_MACH_O_LC_PREPAGE:
4633 case BFD_MACH_O_LC_ROUTINES:
4634 case BFD_MACH_O_LC_ROUTINES_64:
4636 case BFD_MACH_O_LC_SUB_FRAMEWORK:
4637 case BFD_MACH_O_LC_SUB_UMBRELLA:
4638 case BFD_MACH_O_LC_SUB_LIBRARY:
4639 case BFD_MACH_O_LC_SUB_CLIENT:
4640 case BFD_MACH_O_LC_RPATH:
4641 if (!bfd_mach_o_read_str (abfd, command))
4644 case BFD_MACH_O_LC_DYSYMTAB:
4645 if (!bfd_mach_o_read_dysymtab (abfd, command))
4648 case BFD_MACH_O_LC_PREBIND_CKSUM:
4649 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4652 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
4653 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4656 case BFD_MACH_O_LC_UUID:
4657 if (!bfd_mach_o_read_uuid (abfd, command))
4660 case BFD_MACH_O_LC_CODE_SIGNATURE:
4661 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
4662 case BFD_MACH_O_LC_FUNCTION_STARTS:
4663 case BFD_MACH_O_LC_DATA_IN_CODE:
4664 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
4665 if (!bfd_mach_o_read_linkedit (abfd, command))
4668 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4669 if (!bfd_mach_o_read_encryption_info (abfd, command))
4672 case BFD_MACH_O_LC_DYLD_INFO:
4673 if (!bfd_mach_o_read_dyld_info (abfd, command))
4676 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4677 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4678 if (!bfd_mach_o_read_version_min (abfd, command))
4681 case BFD_MACH_O_LC_MAIN:
4682 if (!bfd_mach_o_read_main (abfd, command))
4685 case BFD_MACH_O_LC_SOURCE_VERSION:
4686 if (!bfd_mach_o_read_source_version (abfd, command))
4691 static bfd_boolean unknown_set = FALSE;
4692 static unsigned long unknown_command = 0;
4694 /* Prevent reams of error messages when parsing corrupt binaries. */
4697 else if (command->type == unknown_command)
4699 unknown_command = command->type;
4701 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
4702 abfd, (unsigned long) command->type);
4711 bfd_mach_o_flatten_sections (bfd *abfd)
4713 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4714 bfd_mach_o_load_command *cmd;
4717 /* Count total number of sections. */
4720 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4722 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4723 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4725 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4727 mdata->nsects += seg->nsects;
4731 /* Allocate sections array. */
4732 mdata->sections = bfd_alloc (abfd,
4733 mdata->nsects * sizeof (bfd_mach_o_section *));
4735 /* Fill the array. */
4738 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4740 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4741 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4743 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4744 bfd_mach_o_section *sec;
4746 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4748 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4749 mdata->sections[csect++] = sec;
4755 bfd_mach_o_scan_start_address (bfd *abfd)
4757 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4758 bfd_mach_o_thread_command *thr = NULL;
4759 bfd_mach_o_load_command *cmd;
4762 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4763 if (cmd->type == BFD_MACH_O_LC_THREAD
4764 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
4766 thr = &cmd->command.thread;
4769 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
4771 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
4772 bfd_mach_o_section *text_sect = mdata->sections[0];
4776 abfd->start_address = main_cmd->entryoff
4777 + (text_sect->addr - text_sect->offset);
4782 /* An object file has no start address, so do not fail if not found. */
4786 /* FIXME: create a subtarget hook ? */
4787 for (i = 0; i < thr->nflavours; i++)
4789 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
4790 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
4792 unsigned char buf[4];
4794 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
4795 || bfd_bread (buf, 4, abfd) != 4)
4798 abfd->start_address = bfd_h_get_32 (abfd, buf);
4800 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
4801 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
4803 unsigned char buf[4];
4805 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4806 || bfd_bread (buf, 4, abfd) != 4)
4809 abfd->start_address = bfd_h_get_32 (abfd, buf);
4811 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
4812 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
4814 unsigned char buf[8];
4816 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4817 || bfd_bread (buf, 8, abfd) != 8)
4820 abfd->start_address = bfd_h_get_64 (abfd, buf);
4822 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
4823 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
4825 unsigned char buf[8];
4827 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
4828 || bfd_bread (buf, 8, abfd) != 8)
4831 abfd->start_address = bfd_h_get_64 (abfd, buf);
4839 bfd_mach_o_set_arch_mach (bfd *abfd,
4840 enum bfd_architecture arch,
4841 unsigned long machine)
4843 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4845 /* If this isn't the right architecture for this backend, and this
4846 isn't the generic backend, fail. */
4847 if (arch != bed->arch
4848 && arch != bfd_arch_unknown
4849 && bed->arch != bfd_arch_unknown)
4852 return bfd_default_set_arch_mach (abfd, arch, machine);
4856 bfd_mach_o_scan (bfd *abfd,
4857 bfd_mach_o_header *header,
4858 bfd_mach_o_data_struct *mdata)
4861 enum bfd_architecture cputype;
4862 unsigned long cpusubtype;
4863 unsigned int hdrsize;
4865 hdrsize = mach_o_wide_p (header) ?
4866 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
4868 mdata->header = *header;
4870 abfd->flags = abfd->flags & BFD_IN_MEMORY;
4871 switch (header->filetype)
4873 case BFD_MACH_O_MH_OBJECT:
4874 abfd->flags |= HAS_RELOC;
4876 case BFD_MACH_O_MH_EXECUTE:
4877 abfd->flags |= EXEC_P;
4879 case BFD_MACH_O_MH_DYLIB:
4880 case BFD_MACH_O_MH_BUNDLE:
4881 abfd->flags |= DYNAMIC;
4885 abfd->tdata.mach_o_data = mdata;
4887 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4888 &cputype, &cpusubtype);
4889 if (cputype == bfd_arch_unknown)
4891 (*_bfd_error_handler)
4892 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
4893 header->cputype, header->cpusubtype);
4897 bfd_set_arch_mach (abfd, cputype, cpusubtype);
4899 if (header->ncmds != 0)
4901 bfd_mach_o_load_command *cmd;
4903 mdata->first_command = NULL;
4904 mdata->last_command = NULL;
4905 cmd = bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
4909 for (i = 0; i < header->ncmds; i++)
4911 bfd_mach_o_load_command *cur = &cmd[i];
4913 bfd_mach_o_append_command (abfd, cur);
4916 cur->offset = hdrsize;
4919 bfd_mach_o_load_command *prev = &cmd[i - 1];
4920 cur->offset = prev->offset + prev->len;
4923 if (!bfd_mach_o_read_command (abfd, cur))
4928 /* Sections should be flatten before scanning start address. */
4929 bfd_mach_o_flatten_sections (abfd);
4930 if (!bfd_mach_o_scan_start_address (abfd))
4937 bfd_mach_o_mkobject_init (bfd *abfd)
4939 bfd_mach_o_data_struct *mdata = NULL;
4941 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
4944 abfd->tdata.mach_o_data = mdata;
4946 mdata->header.magic = 0;
4947 mdata->header.cputype = 0;
4948 mdata->header.cpusubtype = 0;
4949 mdata->header.filetype = 0;
4950 mdata->header.ncmds = 0;
4951 mdata->header.sizeofcmds = 0;
4952 mdata->header.flags = 0;
4953 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
4954 mdata->first_command = NULL;
4955 mdata->last_command = NULL;
4957 mdata->sections = NULL;
4958 mdata->dyn_reloc_cache = NULL;
4964 bfd_mach_o_gen_mkobject (bfd *abfd)
4966 bfd_mach_o_data_struct *mdata;
4968 if (!bfd_mach_o_mkobject_init (abfd))
4971 mdata = bfd_mach_o_get_data (abfd);
4972 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
4973 mdata->header.cputype = 0;
4974 mdata->header.cpusubtype = 0;
4975 mdata->header.byteorder = abfd->xvec->byteorder;
4976 mdata->header.version = 1;
4982 bfd_mach_o_header_p (bfd *abfd,
4983 bfd_mach_o_filetype filetype,
4984 bfd_mach_o_cpu_type cputype)
4986 bfd_mach_o_header header;
4987 bfd_mach_o_data_struct *mdata;
4989 if (!bfd_mach_o_read_header (abfd, &header))
4992 if (! (header.byteorder == BFD_ENDIAN_BIG
4993 || header.byteorder == BFD_ENDIAN_LITTLE))
4995 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
4996 (unsigned long) header.byteorder);
5000 if (! ((header.byteorder == BFD_ENDIAN_BIG
5001 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
5002 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
5003 || (header.byteorder == BFD_ENDIAN_LITTLE
5004 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
5005 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
5008 /* Check cputype and filetype.
5009 In case of wildcard, do not accept magics that are handled by existing
5013 if (header.cputype != cputype)
5019 /* Do not recognize 64 architectures if not configured for 64bit targets.
5020 This could happen only for generic targets. */
5021 if (mach_o_wide_p (&header))
5028 if (header.filetype != filetype)
5033 switch (header.filetype)
5035 case BFD_MACH_O_MH_CORE:
5036 /* Handled by core_p */
5043 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5047 if (!bfd_mach_o_scan (abfd, &header, mdata))
5053 bfd_set_error (bfd_error_wrong_format);
5059 static const bfd_target *
5060 bfd_mach_o_gen_object_p (bfd *abfd)
5062 return bfd_mach_o_header_p (abfd, 0, 0);
5065 static const bfd_target *
5066 bfd_mach_o_gen_core_p (bfd *abfd)
5068 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
5071 /* Return the base address of ABFD, ie the address at which the image is
5072 mapped. The possible initial pagezero is ignored. */
5075 bfd_mach_o_get_base_address (bfd *abfd)
5077 bfd_mach_o_data_struct *mdata;
5078 bfd_mach_o_load_command *cmd;
5080 /* Check for Mach-O. */
5081 if (!bfd_mach_o_valid (abfd))
5083 mdata = bfd_mach_o_get_data (abfd);
5085 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5087 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5088 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5090 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5092 if (segcmd->initprot != 0)
5093 return segcmd->vmaddr;
5099 typedef struct mach_o_fat_archentry
5101 unsigned long cputype;
5102 unsigned long cpusubtype;
5103 unsigned long offset;
5105 unsigned long align;
5106 } mach_o_fat_archentry;
5108 typedef struct mach_o_fat_data_struct
5110 unsigned long magic;
5111 unsigned long nfat_arch;
5112 mach_o_fat_archentry *archentries;
5113 } mach_o_fat_data_struct;
5116 bfd_mach_o_archive_p (bfd *abfd)
5118 mach_o_fat_data_struct *adata = NULL;
5119 struct mach_o_fat_header_external hdr;
5122 if (bfd_seek (abfd, 0, SEEK_SET) != 0
5123 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
5126 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
5130 adata->magic = bfd_getb32 (hdr.magic);
5131 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
5132 if (adata->magic != 0xcafebabe)
5134 /* Avoid matching Java bytecode files, which have the same magic number.
5135 In the Java bytecode file format this field contains the JVM version,
5136 which starts at 43.0. */
5137 if (adata->nfat_arch > 30)
5140 adata->archentries =
5141 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
5142 if (adata->archentries == NULL)
5145 for (i = 0; i < adata->nfat_arch; i++)
5147 struct mach_o_fat_arch_external arch;
5148 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
5150 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5151 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5152 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5153 adata->archentries[i].size = bfd_getb32 (arch.size);
5154 adata->archentries[i].align = bfd_getb32 (arch.align);
5157 abfd->tdata.mach_o_fat_data = adata;
5162 bfd_release (abfd, adata);
5163 bfd_set_error (bfd_error_wrong_format);
5167 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5168 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5169 Set arelt_data and origin fields too. */
5172 bfd_mach_o_fat_member_init (bfd *abfd,
5173 enum bfd_architecture arch_type,
5174 unsigned long arch_subtype,
5175 mach_o_fat_archentry *entry)
5177 struct areltdata *areltdata;
5178 /* Create the member filename. Use ARCH_NAME. */
5179 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5183 /* Use the architecture name if known. */
5184 abfd->filename = xstrdup (ap->printable_name);
5188 /* Forge a uniq id. */
5189 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
5190 char *name = xmalloc (namelen);
5191 snprintf (name, namelen, "0x%lx-0x%lx",
5192 entry->cputype, entry->cpusubtype);
5193 abfd->filename = name;
5196 areltdata = bfd_zmalloc (sizeof (struct areltdata));
5197 areltdata->parsed_size = entry->size;
5198 abfd->arelt_data = areltdata;
5199 abfd->iostream = NULL;
5200 abfd->origin = entry->offset;
5204 bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
5206 mach_o_fat_data_struct *adata;
5207 mach_o_fat_archentry *entry = NULL;
5210 enum bfd_architecture arch_type;
5211 unsigned long arch_subtype;
5213 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
5214 BFD_ASSERT (adata != NULL);
5216 /* Find index of previous entry. */
5219 /* Start at first one. */
5224 /* Find index of PREV. */
5225 for (i = 0; i < adata->nfat_arch; i++)
5227 if (adata->archentries[i].offset == prev->origin)
5231 if (i == adata->nfat_arch)
5234 bfd_set_error (bfd_error_bad_value);
5238 /* Get next entry. */
5242 if (i >= adata->nfat_arch)
5244 bfd_set_error (bfd_error_no_more_archived_files);
5248 entry = &adata->archentries[i];
5249 nbfd = _bfd_new_bfd_contained_in (archive);
5253 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5254 &arch_type, &arch_subtype);
5256 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5258 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
5263 /* Analogous to stat call. */
5266 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5268 if (abfd->arelt_data == NULL)
5270 bfd_set_error (bfd_error_invalid_operation);
5277 buf->st_mode = 0644;
5278 buf->st_size = arelt_size (abfd);
5283 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5284 If ABFD is a fat image containing a member that corresponds to FORMAT
5285 and ARCH, returns it.
5286 In other case, returns NULL.
5287 This function allows transparent uses of fat images. */
5290 bfd_mach_o_fat_extract (bfd *abfd,
5292 const bfd_arch_info_type *arch)
5295 mach_o_fat_data_struct *adata;
5298 if (bfd_check_format (abfd, format))
5300 if (bfd_get_arch_info (abfd) == arch)
5304 if (!bfd_check_format (abfd, bfd_archive)
5305 || abfd->xvec != &mach_o_fat_vec)
5308 /* This is a Mach-O fat image. */
5309 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5310 BFD_ASSERT (adata != NULL);
5312 for (i = 0; i < adata->nfat_arch; i++)
5314 struct mach_o_fat_archentry *e = &adata->archentries[i];
5315 enum bfd_architecture cpu_type;
5316 unsigned long cpu_subtype;
5318 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5319 &cpu_type, &cpu_subtype);
5320 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5323 /* The architecture is found. */
5324 res = _bfd_new_bfd_contained_in (abfd);
5328 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
5330 if (bfd_check_format (res, format))
5332 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5343 bfd_mach_o_lookup_command (bfd *abfd,
5344 bfd_mach_o_load_command_type type,
5345 bfd_mach_o_load_command **mcommand)
5347 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5348 struct bfd_mach_o_load_command *cmd;
5351 BFD_ASSERT (mdata != NULL);
5352 BFD_ASSERT (mcommand != NULL);
5355 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5357 if (cmd->type != type)
5369 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
5373 case BFD_MACH_O_CPU_TYPE_MC680x0:
5375 case BFD_MACH_O_CPU_TYPE_MC88000:
5377 case BFD_MACH_O_CPU_TYPE_POWERPC:
5379 case BFD_MACH_O_CPU_TYPE_I386:
5381 case BFD_MACH_O_CPU_TYPE_SPARC:
5383 case BFD_MACH_O_CPU_TYPE_I860:
5385 case BFD_MACH_O_CPU_TYPE_HPPA:
5386 return 0xc0000000 - 0x04000000;
5392 /* The following two tables should be kept, as far as possible, in order of
5393 most frequently used entries to optimize their use from gas. */
5395 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
5397 { "regular", BFD_MACH_O_S_REGULAR},
5398 { "coalesced", BFD_MACH_O_S_COALESCED},
5399 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5400 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5401 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5402 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
5403 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
5404 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
5405 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5406 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
5407 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5408 { "interposing", BFD_MACH_O_S_INTERPOSING},
5409 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
5410 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5411 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
5412 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
5413 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5417 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
5419 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5420 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
5421 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5422 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
5423 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
5424 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5425 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5426 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5427 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
5428 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5429 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5433 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5436 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
5438 const bfd_mach_o_xlat_name *x;
5439 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5441 for (x = bfd_mach_o_section_type_name; x->name; x++)
5442 if (strcmp (x->name, name) == 0)
5444 /* We found it... does the target support it? */
5445 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5446 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5447 return x->val; /* OK. */
5449 break; /* Not supported. */
5451 /* Maximum section ID = 0xff. */
5455 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5458 bfd_mach_o_get_section_attribute_from_name (const char *name)
5460 const bfd_mach_o_xlat_name *x;
5462 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5463 if (strcmp (x->name, name) == 0)
5465 return (unsigned int)-1;
5469 bfd_mach_o_core_fetch_environment (bfd *abfd,
5470 unsigned char **rbuf,
5473 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5474 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
5475 bfd_mach_o_load_command *cmd;
5477 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5479 bfd_mach_o_segment_command *seg;
5481 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
5484 seg = &cmd->command.segment;
5486 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5488 unsigned long start = seg->fileoff;
5489 unsigned long end = seg->fileoff + seg->filesize;
5490 unsigned char *buf = bfd_malloc (1024);
5491 unsigned long size = 1024;
5495 bfd_size_type nread = 0;
5496 unsigned long offset;
5497 int found_nonnull = 0;
5499 if (size > (end - start))
5500 size = (end - start);
5502 buf = bfd_realloc_or_free (buf, size);
5506 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5512 nread = bfd_bread (buf, size, abfd);
5520 for (offset = 4; offset <= size; offset += 4)
5524 val = *((unsigned long *) (buf + size - offset));
5525 if (! found_nonnull)
5530 else if (val == 0x0)
5532 unsigned long bottom;
5535 bottom = seg->fileoff + seg->filesize - offset;
5536 top = seg->fileoff + seg->filesize - 4;
5537 *rbuf = bfd_malloc (top - bottom);
5538 *rlen = top - bottom;
5540 memcpy (*rbuf, buf + size - *rlen, *rlen);
5546 if (size == (end - start))
5560 bfd_mach_o_core_file_failing_command (bfd *abfd)
5562 unsigned char *buf = NULL;
5563 unsigned int len = 0;
5566 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5570 return (char *) buf;
5574 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
5579 static bfd_mach_o_uuid_command *
5580 bfd_mach_o_lookup_uuid_command (bfd *abfd)
5582 bfd_mach_o_load_command *uuid_cmd;
5583 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5586 return &uuid_cmd->command.uuid;
5589 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5592 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5594 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5597 BFD_ASSERT (uuid_cmd);
5599 if (!bfd_check_format (abfd, bfd_object))
5602 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5603 || bfd_mach_o_get_data (abfd) == NULL
5604 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5607 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5608 if (dsym_uuid_cmd == NULL)
5611 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5612 sizeof (uuid_cmd->uuid)) != 0)
5618 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5619 The caller is responsible for closing the returned BFD object and
5620 its my_archive if the returned BFD is in a fat dSYM. */
5623 bfd_mach_o_find_dsym (const char *dsym_filename,
5624 const bfd_mach_o_uuid_command *uuid_cmd,
5625 const bfd_arch_info_type *arch)
5627 bfd *base_dsym_bfd, *dsym_bfd;
5629 BFD_ASSERT (uuid_cmd);
5631 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5632 if (base_dsym_bfd == NULL)
5635 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5636 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5639 bfd_close (dsym_bfd);
5640 if (base_dsym_bfd != dsym_bfd)
5641 bfd_close (base_dsym_bfd);
5646 /* Return a BFD created from a dSYM file for ABFD.
5647 The caller is responsible for closing the returned BFD object, its
5648 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5651 bfd_mach_o_follow_dsym (bfd *abfd)
5653 char *dsym_filename;
5654 bfd_mach_o_uuid_command *uuid_cmd;
5655 bfd *dsym_bfd, *base_bfd = abfd;
5656 const char *base_basename;
5658 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5661 if (abfd->my_archive)
5662 base_bfd = abfd->my_archive;
5663 /* BFD may have been opened from a stream. */
5664 if (base_bfd->filename == NULL)
5666 bfd_set_error (bfd_error_invalid_operation);
5669 base_basename = lbasename (base_bfd->filename);
5671 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5672 if (uuid_cmd == NULL)
5675 /* TODO: We assume the DWARF file has the same as the binary's.
5676 It seems apple's GDB checks all files in the dSYM bundle directory.
5677 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5679 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5680 + strlen (dsym_subdir) + 1
5681 + strlen (base_basename) + 1);
5682 sprintf (dsym_filename, "%s%s/%s",
5683 base_bfd->filename, dsym_subdir, base_basename);
5685 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5686 bfd_get_arch_info (abfd));
5687 if (dsym_bfd == NULL)
5688 free (dsym_filename);
5694 bfd_mach_o_find_nearest_line (bfd *abfd,
5698 const char **filename_ptr,
5699 const char **functionname_ptr,
5700 unsigned int *line_ptr,
5701 unsigned int *discriminator_ptr)
5703 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5706 switch (mdata->header.filetype)
5708 case BFD_MACH_O_MH_OBJECT:
5710 case BFD_MACH_O_MH_EXECUTE:
5711 case BFD_MACH_O_MH_DYLIB:
5712 case BFD_MACH_O_MH_BUNDLE:
5713 case BFD_MACH_O_MH_KEXT_BUNDLE:
5714 if (mdata->dwarf2_find_line_info == NULL)
5716 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5717 /* When we couldn't find dSYM for this binary, we look for
5718 the debug information in the binary itself. In this way,
5719 we won't try finding separated dSYM again because
5720 mdata->dwarf2_find_line_info will be filled. */
5721 if (! mdata->dsym_bfd)
5723 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5724 dwarf_debug_sections, symbols,
5725 &mdata->dwarf2_find_line_info,
5733 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5734 filename_ptr, functionname_ptr,
5735 line_ptr, discriminator_ptr,
5736 dwarf_debug_sections, 0,
5737 &mdata->dwarf2_find_line_info);
5741 bfd_mach_o_close_and_cleanup (bfd *abfd)
5743 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5744 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
5746 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5747 bfd_mach_o_free_cached_info (abfd);
5748 if (mdata->dsym_bfd != NULL)
5750 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5751 char *dsym_filename = (char *)(fat_bfd
5753 : mdata->dsym_bfd->filename);
5754 bfd_close (mdata->dsym_bfd);
5755 mdata->dsym_bfd = NULL;
5757 bfd_close (fat_bfd);
5758 free (dsym_filename);
5762 if (bfd_get_format (abfd) == bfd_archive
5763 && abfd->xvec == &mach_o_fat_vec)
5765 return _bfd_generic_close_and_cleanup (abfd);
5768 bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
5770 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5772 free (mdata->dyn_reloc_cache);
5773 mdata->dyn_reloc_cache = NULL;
5774 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5776 free (asect->relocation);
5777 asect->relocation = NULL;
5783 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5784 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5786 #define bfd_mach_o_swap_reloc_in NULL
5787 #define bfd_mach_o_swap_reloc_out NULL
5788 #define bfd_mach_o_print_thread NULL
5789 #define bfd_mach_o_tgt_seg_table NULL
5790 #define bfd_mach_o_section_type_valid_for_tgt NULL
5792 #define TARGET_NAME mach_o_be_vec
5793 #define TARGET_STRING "mach-o-be"
5794 #define TARGET_ARCHITECTURE bfd_arch_unknown
5795 #define TARGET_PAGESIZE 1
5796 #define TARGET_BIG_ENDIAN 1
5797 #define TARGET_ARCHIVE 0
5798 #define TARGET_PRIORITY 1
5799 #include "mach-o-target.c"
5802 #undef TARGET_STRING
5803 #undef TARGET_ARCHITECTURE
5804 #undef TARGET_PAGESIZE
5805 #undef TARGET_BIG_ENDIAN
5806 #undef TARGET_ARCHIVE
5807 #undef TARGET_PRIORITY
5809 #define TARGET_NAME mach_o_le_vec
5810 #define TARGET_STRING "mach-o-le"
5811 #define TARGET_ARCHITECTURE bfd_arch_unknown
5812 #define TARGET_PAGESIZE 1
5813 #define TARGET_BIG_ENDIAN 0
5814 #define TARGET_ARCHIVE 0
5815 #define TARGET_PRIORITY 1
5817 #include "mach-o-target.c"
5820 #undef TARGET_STRING
5821 #undef TARGET_ARCHITECTURE
5822 #undef TARGET_PAGESIZE
5823 #undef TARGET_BIG_ENDIAN
5824 #undef TARGET_ARCHIVE
5825 #undef TARGET_PRIORITY
5827 /* Not yet handled: creating an archive. */
5828 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
5831 #define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
5832 #define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
5833 #define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
5834 #define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
5835 #define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
5836 #define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
5837 #define bfd_mach_o_write_armap _bfd_noarchive_write_armap
5838 #define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
5839 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
5840 #define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
5842 #define TARGET_NAME mach_o_fat_vec
5843 #define TARGET_STRING "mach-o-fat"
5844 #define TARGET_ARCHITECTURE bfd_arch_unknown
5845 #define TARGET_PAGESIZE 1
5846 #define TARGET_BIG_ENDIAN 1
5847 #define TARGET_ARCHIVE 1
5848 #define TARGET_PRIORITY 0
5850 #include "mach-o-target.c"
5853 #undef TARGET_STRING
5854 #undef TARGET_ARCHITECTURE
5855 #undef TARGET_PAGESIZE
5856 #undef TARGET_BIG_ENDIAN
5857 #undef TARGET_ARCHIVE
5858 #undef TARGET_PRIORITY