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Remove const from many struct objfile *
[deliverable/binutils-gdb.git] / bfd / mach-o.c
CommitLineData
3af9a47b 1/* Mach-O support for BFD.
4b95cf5c 2 Copyright (C) 1999-2014 Free Software Foundation, Inc.
3af9a47b
NC		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
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
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
3af9a47b
NC		 9 (at your option) any later version.
10
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.
15
16 You should have received a copy of the GNU General Public License
a95a4550 17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
3af9a47b 20
3db64b00 21#include "sysdep.h"
3af9a47b
NC		 22#include "mach-o.h"
23#include "bfd.h"
3af9a47b
NC		 24#include "libbfd.h"
25#include "libiberty.h"
15e1c58a 26#include "aout/stab_gnu.h"
46d1c23b
TG		 27#include "mach-o/reloc.h"
28#include "mach-o/external.h"
3af9a47b 29#include <ctype.h>
7f307238
IS		 30#include <stdlib.h>
31#include <string.h>
3af9a47b 32
154a1ee5
TG		 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
42fa0891 35#define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject
116c20d2 36
92bc0e80
TG		 37#define FILE_ALIGN(off, algn) \
38 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1 << (algn)))
39
c9ffd2ea
TG		 40static bfd_boolean
41bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd);
42
c2f09c75 43unsigned int
1e8a024a
TG		 44bfd_mach_o_version (bfd *abfd)
45{
46 bfd_mach_o_data_struct *mdata = NULL;
47
48 BFD_ASSERT (bfd_mach_o_valid (abfd));
046b007d 49 mdata = bfd_mach_o_get_data (abfd);
1e8a024a
TG		 50
51 return mdata->header.version;
52}
53
b34976b6 54bfd_boolean
116c20d2 55bfd_mach_o_valid (bfd *abfd)
3af9a47b
NC		 56{
57 if (abfd == NULL || abfd->xvec == NULL)
154a1ee5 58 return FALSE;
3af9a47b 59
154a1ee5
TG		 60 if (abfd->xvec->flavour != bfd_target_mach_o_flavour)
61 return FALSE;
3af9a47b 62
046b007d 63 if (bfd_mach_o_get_data (abfd) == NULL)
154a1ee5
TG		 64 return FALSE;
65 return TRUE;
66}
67
c2f09c75
TG		 68static INLINE bfd_boolean
69mach_o_wide_p (bfd_mach_o_header *header)
70{
71 switch (header->version)
72 {
73 case 1:
74 return FALSE;
75 case 2:
76 return TRUE;
77 default:
78 BFD_FAIL ();
79 return FALSE;
80 }
81}
82
83static INLINE bfd_boolean
84bfd_mach_o_wide_p (bfd *abfd)
85{
046b007d 86 return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header);
c2f09c75 87}
68ffbac6 88
154a1ee5
TG		 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
91 by gdb. */
92
a4551119
TG		 93/* __TEXT Segment. */
94static const mach_o_section_name_xlat text_section_names_xlat[] =
154a1ee5 95 {
68ffbac6 96 { ".text", "__text",
a4551119
TG		 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",
632039e0 125 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED,
a4551119
TG		 126 BFD_MACH_O_S_ATTR_LIVE_SUPPORT
127 | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
632039e0 128 | BFD_MACH_O_S_ATTR_NO_TOC, 2},
a4551119 129 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 130 };
131
a4551119
TG		 132/* __DATA Segment. */
133static const mach_o_section_name_xlat data_section_names_xlat[] =
154a1ee5 134 {
a4551119
TG		 135 { ".data", "__data",
136 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
137 BFD_MACH_O_S_ATTR_NONE, 0},
138 { ".bss", "__bss",
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},
153 { ".dyld", "__dyld",
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}
154a1ee5
TG		 160 };
161
a4551119
TG		 162/* __DWARF Segment. */
163static const mach_o_section_name_xlat dwarf_section_names_xlat[] =
154a1ee5 164 {
a4551119
TG		 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},
671a6cbe
NC		 201 { ".debug_gdb_scripts", "__debug_gdb_scri",
202 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
203 BFD_MACH_O_S_ATTR_DEBUG, 0},
a4551119 204 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 205 };
206
a4551119
TG		 207/* __OBJC Segment. */
208static const mach_o_section_name_xlat objc_section_names_xlat[] =
209 {
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},
264 /* Objc V1 */
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}
275 };
5a5cbf72 276
a4551119 277static const mach_o_segment_name_xlat segsec_names_xlat[] =
154a1ee5 278 {
154a1ee5
TG		 279 { "__TEXT", text_section_names_xlat },
280 { "__DATA", data_section_names_xlat },
5a5cbf72 281 { "__DWARF", dwarf_section_names_xlat },
a4551119 282 { "__OBJC", objc_section_names_xlat },
154a1ee5
TG		 283 { NULL, NULL }
284 };
285
2ca7691a
TG		 286static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF";
287
a4551119
TG		 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. */
154a1ee5 291
a4551119
TG		 292/* Fetch the translation from a Mach-O section designation (segment, section)
293 as a bfd short name, if one exists. Otherwise return NULL.
68ffbac6 294
a4551119
TG		 295 Allow the segment and section names to be unterminated 16 byte arrays. */
296
297const mach_o_section_name_xlat *
298bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname,
299 const char *sectname)
154a1ee5
TG		 300{
301 const struct mach_o_segment_name_xlat *seg;
a4551119
TG		 302 const mach_o_section_name_xlat *sec;
303 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
154a1ee5 304
a4551119
TG		 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)
312 return sec;
8462aec7 313
a4551119 314 /* ... and then the Mach-O generic ones. */
154a1ee5 315 for (seg = segsec_names_xlat; seg->segname; seg++)
a4551119
TG		 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)
320 return sec;
154a1ee5 321
68ffbac6 322 return NULL;
53d58d96
TG		 323}
324
a4551119 325/* If the bfd_name for this section is a 'canonical' form for which we
68ffbac6 326 know the Mach-O data, return the segment name and the data for the
a4551119 327 Mach-O equivalent. Otherwise return NULL. */
7ba695a9 328
a4551119
TG		 329const mach_o_section_name_xlat *
330bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name,
331 const char **segname)
53d58d96 332{
a4551119
TG		 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);
336 *segname = NULL;
337
338 if (bfd_name[0] != '.')
339 return NULL;
340
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)
346 {
347 *segname = seg->segname;
348 return sec;
349 }
350
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)
355 {
356 *segname = seg->segname;
357 return sec;
358 }
359
68ffbac6 360 return NULL;
a4551119
TG		 361}
362
363/* Convert Mach-O section name to BFD.
364
68ffbac6 365 Try to use standard/canonical names, for which we have tables including
a4551119
TG		 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.
369
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). */
373
374void
375bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname,
376 const char *secname, const char **name,
377 flagword *flags)
378{
379 const mach_o_section_name_xlat *xlat;
53d58d96
TG		 380 char *res;
381 unsigned int len;
382 const char *pfx = "";
383
a4551119
TG		 384 *name = NULL;
385 *flags = SEC_NO_FLAGS;
53d58d96 386
68ffbac6 387 /* First search for a canonical name...
a4551119
TG		 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);
390 if (xlat)
391 {
392 len = strlen (xlat->bfd_name);
393 res = bfd_alloc (abfd, len+1);
394 if (res == NULL)
395 return;
396 memcpy (res, xlat->bfd_name, len+1);
397 *name = res;
398 *flags = xlat->bfd_flags;
399 return;
400 }
401
402 /* ... else we make up a bfd name from the segment concatenated with the
403 section. */
154a1ee5 404
7ba695a9 405 len = 16 + 1 + 16 + 1;
154a1ee5 406
c2f09c75
TG		 407 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
408 with an underscore. */
f1bde64c 409 if (segname[0] != '_')
c2f09c75
TG		 410 {
411 static const char seg_pfx[] = "LC_SEGMENT.";
412
413 pfx = seg_pfx;
414 len += sizeof (seg_pfx) - 1;
415 }
416
154a1ee5
TG		 417 res = bfd_alloc (abfd, len);
418 if (res == NULL)
8462aec7 419 return;
a4551119 420 snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname);
8462aec7 421 *name = res;
154a1ee5
TG		 422}
423
a4551119 424/* Convert a bfd section name to a Mach-O segment + section name.
154a1ee5 425
a4551119
TG		 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.
429
68ffbac6 430 Otherwise, expand the bfd_name (assumed to be in the form
a4551119
TG		 431 "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
432
433static const mach_o_section_name_xlat *
154a1ee5
TG		 434bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
435 asection *sect,
436 bfd_mach_o_section *section)
437{
a4551119 438 const mach_o_section_name_xlat *xlat;
154a1ee5 439 const char *name = bfd_get_section_name (abfd, sect);
a4551119 440 const char *segname;
154a1ee5
TG		 441 const char *dot;
442 unsigned int len;
443 unsigned int seglen;
444 unsigned int seclen;
445
a4551119
TG		 446 memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1);
447 memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1);
448
449 /* See if is a canonical name ... */
450 xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname);
451 if (xlat)
452 {
453 strcpy (section->segname, segname);
454 strcpy (section->sectname, xlat->mach_o_name);
455 return xlat;
456 }
154a1ee5 457
a4551119
TG		 458 /* .. else we convert our constructed one back to Mach-O.
459 Strip LC_SEGMENT. prefix, if present. */
154a1ee5
TG		 460 if (strncmp (name, "LC_SEGMENT.", 11) == 0)
461 name += 11;
462
463 /* Find a dot. */
464 dot = strchr (name, '.');
465 len = strlen (name);
466
467 /* Try to split name into segment and section names. */
468 if (dot && dot != name)
469 {
470 seglen = dot - name;
471 seclen = len - (dot + 1 - name);
472
ca148c5a
TG		 473 if (seglen <= BFD_MACH_O_SEGNAME_SIZE
474 && seclen <= BFD_MACH_O_SECTNAME_SIZE)
154a1ee5
TG		 475 {
476 memcpy (section->segname, name, seglen);
477 section->segname[seglen] = 0;
478 memcpy (section->sectname, dot + 1, seclen);
479 section->sectname[seclen] = 0;
a4551119 480 return NULL;
154a1ee5
TG		 481 }
482 }
483
a4551119
TG		 484 /* The segment and section names are both missing - don't make them
485 into dots. */
486 if (dot && dot == name)
487 return NULL;
488
489 /* Just duplicate the name into both segment and section. */
154a1ee5
TG		 490 if (len > 16)
491 len = 16;
492 memcpy (section->segname, name, len);
493 section->segname[len] = 0;
494 memcpy (section->sectname, name, len);
495 section->sectname[len] = 0;
a4551119 496 return NULL;
3af9a47b
NC		 497}
498
b2b62060
TG		 499/* Return the size of an entry for section SEC.
500 Must be called only for symbol pointer section and symbol stubs
501 sections. */
502
c5012cd8 503unsigned int
b2b62060
TG		 504bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec)
505{
506 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
507 {
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;
513 default:
514 BFD_FAIL ();
515 return 0;
516 }
517}
518
519/* Return the number of indirect symbols for a section.
520 Must be called only for symbol pointer section and symbol stubs
521 sections. */
522
c5012cd8 523unsigned int
b2b62060
TG		 524bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec)
525{
526 unsigned int elsz;
527
528 elsz = bfd_mach_o_section_get_entry_size (abfd, sec);
529 if (elsz == 0)
530 return 0;
531 else
532 return sec->size / elsz;
533}
534
c9ffd2ea
TG		 535/* Append command CMD to ABFD. Note that header.ncmds is not updated. */
536
537static void
538bfd_mach_o_append_command (bfd *abfd, bfd_mach_o_load_command *cmd)
539{
540 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
541
542 if (mdata->last_command != NULL)
543 mdata->last_command->next = cmd;
544 else
545 mdata->first_command = cmd;
546 mdata->last_command = cmd;
547 cmd->next = NULL;
548}
b2b62060 549
3af9a47b
NC		 550/* Copy any private info we understand from the input symbol
551 to the output symbol. */
552
154a1ee5 553bfd_boolean
116c20d2 554bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
b22161d6 555 asymbol *isymbol,
116c20d2 556 bfd *obfd ATTRIBUTE_UNUSED,
b22161d6
IS		 557 asymbol *osymbol)
558{
559 bfd_mach_o_asymbol *os, *is;
c9ffd2ea 560
b22161d6
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;
c9ffd2ea 567
b34976b6 568 return TRUE;
3af9a47b
NC		 569}
570
571/* Copy any private info we understand from the input section
572 to the output section. */
573
154a1ee5 574bfd_boolean
c9ffd2ea
TG		 575bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection,
576 bfd *obfd, asection *osection)
a4551119 577{
c9ffd2ea
TG		 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);
68ffbac6 580
c9ffd2ea
TG		 581 if (ibfd->xvec->flavour != bfd_target_mach_o_flavour
582 || obfd->xvec->flavour != bfd_target_mach_o_flavour)
583 return TRUE;
584
585 BFD_ASSERT (is != NULL && os != NULL);
586
587 os->flags = is->flags;
588 os->reserved1 = is->reserved1;
589 os->reserved2 = is->reserved2;
590 os->reserved3 = is->reserved3;
a4551119 591
b34976b6 592 return TRUE;
3af9a47b
NC		 593}
594
595/* Copy any private info we understand from the input bfd
596 to the output bfd. */
597
154a1ee5 598bfd_boolean
967b2c53 599bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd)
3af9a47b 600{
c9ffd2ea
TG		 601 bfd_mach_o_data_struct *imdata;
602 bfd_mach_o_data_struct *omdata;
603 bfd_mach_o_load_command *icmd;
604
154a1ee5
TG		 605 if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
606 || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
607 return TRUE;
608
3af9a47b
NC		 609 BFD_ASSERT (bfd_mach_o_valid (ibfd));
610 BFD_ASSERT (bfd_mach_o_valid (obfd));
611
c9ffd2ea
TG		 612 imdata = bfd_mach_o_get_data (ibfd);
613 omdata = bfd_mach_o_get_data (obfd);
614
615 /* Copy header flags. */
616 omdata->header.flags = imdata->header.flags;
617
618 /* Copy commands. */
619 for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next)
620 {
621 bfd_mach_o_load_command *ocmd;
622
623 switch (icmd->type)
624 {
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));
630 if (ocmd == NULL)
631 return FALSE;
632
633 /* Copy common fields. */
634 ocmd->type = icmd->type;
635 ocmd->type_required = icmd->type_required;
636 ocmd->offset = 0;
637 ocmd->len = icmd->len;
638 break;
639
640 default:
641 /* Command is not copied. */
642 continue;
643 break;
644 }
645
646 switch (icmd->type)
647 {
648 case BFD_MACH_O_LC_LOAD_DYLIB:
649 {
650 bfd_mach_o_dylib_command *idy = &icmd->command.dylib;
651 bfd_mach_o_dylib_command *ody = &ocmd->command.dylib;
652
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;
658 }
659 break;
660
661 case BFD_MACH_O_LC_LOAD_DYLINKER:
662 {
663 bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker;
664 bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker;
665
666 ody->name_offset = idy->name_offset;
667 ody->name_str = idy->name_str;
668 }
669 break;
670
671 case BFD_MACH_O_LC_DYLD_INFO:
672 {
673 bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info;
674 bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info;
675
676 if (bfd_mach_o_read_dyld_content (ibfd, idy))
677 {
678 ody->rebase_size = idy->rebase_size;
679 ody->rebase_content = idy->rebase_content;
680
681 ody->bind_size = idy->bind_size;
682 ody->bind_content = idy->bind_content;
683
684 ody->weak_bind_size = idy->weak_bind_size;
685 ody->weak_bind_content = idy->weak_bind_content;
686
687 ody->lazy_bind_size = idy->lazy_bind_size;
688 ody->lazy_bind_content = idy->lazy_bind_content;
689
690 ody->export_size = idy->export_size;
691 ody->export_content = idy->export_content;
692 }
693 }
694 break;
695
696 default:
697 /* That command should be handled. */
698 abort ();
699 }
700
701 /* Insert command. */
702 bfd_mach_o_append_command (obfd, ocmd);
703 }
154a1ee5 704
b34976b6 705 return TRUE;
3af9a47b
NC		 706}
707
0c9ef0f0
TG		 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. */
68ffbac6 711
0c9ef0f0
TG		 712bfd_boolean
713bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags)
714{
715 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
716
717 if (!mdata)
718 return FALSE;
719
720 mdata->header.flags = flags;
721 return TRUE;
722}
723
046b007d 724/* Count the total number of symbols. */
154a1ee5 725
3af9a47b 726static long
116c20d2 727bfd_mach_o_count_symbols (bfd *abfd)
3af9a47b 728{
046b007d 729 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 730
046b007d
TG		 731 if (mdata->symtab == NULL)
732 return 0;
733 return mdata->symtab->nsyms;
3af9a47b
NC		 734}
735
154a1ee5 736long
116c20d2 737bfd_mach_o_get_symtab_upper_bound (bfd *abfd)
3af9a47b
NC		 738{
739 long nsyms = bfd_mach_o_count_symbols (abfd);
740
3af9a47b
NC		 741 return ((nsyms + 1) * sizeof (asymbol *));
742}
743
154a1ee5 744long
116c20d2 745bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation)
3af9a47b 746{
046b007d 747 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 748 long nsyms = bfd_mach_o_count_symbols (abfd);
046b007d
TG		 749 bfd_mach_o_symtab_command *sym = mdata->symtab;
750 unsigned long j;
3af9a47b
NC		 751
752 if (nsyms < 0)
753 return nsyms;
754
092d27ff
TG		 755 if (nsyms == 0)
756 {
757 /* Do not try to read symbols if there are none. */
758 alocation[0] = NULL;
759 return 0;
760 }
761
afbb9e17 762 if (!bfd_mach_o_read_symtab_symbols (abfd))
3af9a47b 763 {
afbb9e17
TG		 764 (*_bfd_error_handler)
765 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
046b007d
TG		 766 return 0;
767 }
3af9a47b 768
046b007d 769 BFD_ASSERT (sym->symbols != NULL);
3af9a47b 770
046b007d
TG		 771 for (j = 0; j < sym->nsyms; j++)
772 alocation[j] = &sym->symbols[j].symbol;
3af9a47b 773
046b007d 774 alocation[j] = NULL;
a95a4550 775
3af9a47b
NC		 776 return nsyms;
777}
778
aeefa1c9
TG		 779/* Create synthetic symbols for indirect symbols. */
780
b2b62060
TG		 781long
782bfd_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,
787 asymbol **ret)
788{
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;
792 asymbol *s;
793 unsigned long count, i, j, n;
794 size_t size;
795 char *names;
796 char *nul_name;
797
798 *ret = NULL;
799
aeefa1c9 800 /* Stop now if no symbols or no indirect symbols. */
b2b62060
TG		 801 if (dysymtab == NULL || symtab == NULL || symtab->symbols == NULL)
802 return 0;
803
804 if (dysymtab->nindirectsyms == 0)
805 return 0;
806
aeefa1c9
TG		 807 /* We need to allocate a bfd symbol for every indirect symbol and to
808 allocate the memory for its name. */
b2b62060
TG		 809 count = dysymtab->nindirectsyms;
810 size = count * sizeof (asymbol) + 1;
811
812 for (j = 0; j < count; j++)
813 {
814 unsigned int isym = dysymtab->indirect_syms[j];
aeefa1c9
TG		 815
816 /* Some indirect symbols are anonymous. */
b2b62060
TG		 817 if (isym < symtab->nsyms && symtab->symbols[isym].symbol.name)
818 size += strlen (symtab->symbols[isym].symbol.name) + sizeof ("$stub");
819 }
820
821 s = *ret = (asymbol *) bfd_malloc (size);
822 if (s == NULL)
823 return -1;
824 names = (char *) (s + count);
825 nul_name = names;
826 *names++ = 0;
68ffbac6 827
b2b62060
TG		 828 n = 0;
829 for (i = 0; i < mdata->nsects; i++)
830 {
831 bfd_mach_o_section *sec = mdata->sections[i];
91d6fa6a 832 unsigned int first, last;
b2b62060
TG		 833 bfd_vma addr;
834 bfd_vma entry_size;
68ffbac6 835
b2b62060
TG		 836 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
837 {
838 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
839 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
840 case BFD_MACH_O_S_SYMBOL_STUBS:
aeefa1c9 841 /* Only these sections have indirect symbols. */
b2b62060
TG		 842 first = sec->reserved1;
843 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
844 addr = sec->addr;
845 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
846 for (j = first; j < last; j++)
847 {
848 unsigned int isym = dysymtab->indirect_syms[j];
849
850 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
851 s->section = sec->bfdsection;
852 s->value = addr - sec->addr;
853 s->udata.p = NULL;
68ffbac6 854
b2b62060
TG		 855 if (isym < symtab->nsyms
856 && symtab->symbols[isym].symbol.name)
857 {
858 const char *sym = symtab->symbols[isym].symbol.name;
859 size_t len;
860
861 s->name = names;
862 len = strlen (sym);
863 memcpy (names, sym, len);
864 names += len;
865 memcpy (names, "$stub", sizeof ("$stub"));
866 names += sizeof ("$stub");
867 }
868 else
869 s->name = nul_name;
870
871 addr += entry_size;
872 s++;
873 n++;
874 }
875 break;
876 default:
877 break;
878 }
879 }
880
881 return n;
882}
883
154a1ee5 884void
116c20d2
NC		 885bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
886 asymbol *symbol,
887 symbol_info *ret)
3af9a47b
NC		 888{
889 bfd_symbol_info (symbol, ret);
890}
891
154a1ee5 892void
116c20d2 893bfd_mach_o_print_symbol (bfd *abfd,
91d6fa6a 894 void * afile,
116c20d2
NC		 895 asymbol *symbol,
896 bfd_print_symbol_type how)
3af9a47b
NC		 897{
898 FILE *file = (FILE *) afile;
15e1c58a 899 const char *name;
92bc0e80 900 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
3af9a47b
NC		 901
902 switch (how)
903 {
904 case bfd_print_symbol_name:
905 fprintf (file, "%s", symbol->name);
906 break;
907 default:
91d6fa6a 908 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
92bc0e80
TG		 909 if (asym->n_type & BFD_MACH_O_N_STAB)
910 name = bfd_get_stab_name (asym->n_type);
15e1c58a 911 else
92bc0e80 912 switch (asym->n_type & BFD_MACH_O_N_TYPE)
15e1c58a
TG		 913 {
914 case BFD_MACH_O_N_UNDF:
e0ce1005
TG		 915 if (symbol->value == 0)
916 name = "UND";
917 else
918 name = "COM";
15e1c58a
TG		 919 break;
920 case BFD_MACH_O_N_ABS:
921 name = "ABS";
922 break;
923 case BFD_MACH_O_N_INDR:
924 name = "INDR";
925 break;
926 case BFD_MACH_O_N_PBUD:
927 name = "PBUD";
928 break;
929 case BFD_MACH_O_N_SECT:
930 name = "SECT";
931 break;
932 default:
933 name = "???";
934 break;
935 }
936 if (name == NULL)
937 name = "";
92bc0e80
TG		 938 fprintf (file, " %02x %-6s %02x %04x",
939 asym->n_type, name, asym->n_sect, asym->n_desc);
940 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
941 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
e0ce1005 942 fprintf (file, " [%s]", symbol->section->name);
15e1c58a 943 fprintf (file, " %s", symbol->name);
3af9a47b
NC		 944 }
945}
946
947static void
116c20d2 948bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
0b2de107 949 bfd_mach_o_cpu_subtype msubtype,
116c20d2
NC		 950 enum bfd_architecture *type,
951 unsigned long *subtype)
3af9a47b
NC		 952{
953 *subtype = bfd_arch_unknown;
954
955 switch (mtype)
956 {
0b2de107
TG		 957 case BFD_MACH_O_CPU_TYPE_VAX:
958 *type = bfd_arch_vax;
959 break;
960 case BFD_MACH_O_CPU_TYPE_MC680x0:
961 *type = bfd_arch_m68k;
962 break;
1e8a024a
TG		 963 case BFD_MACH_O_CPU_TYPE_I386:
964 *type = bfd_arch_i386;
965 *subtype = bfd_mach_i386_i386;
966 break;
967 case BFD_MACH_O_CPU_TYPE_X86_64:
968 *type = bfd_arch_i386;
969 *subtype = bfd_mach_x86_64;
970 break;
0b2de107
TG		 971 case BFD_MACH_O_CPU_TYPE_MIPS:
972 *type = bfd_arch_mips;
973 break;
974 case BFD_MACH_O_CPU_TYPE_MC98000:
975 *type = bfd_arch_m98k;
976 break;
977 case BFD_MACH_O_CPU_TYPE_HPPA:
978 *type = bfd_arch_hppa;
979 break;
980 case BFD_MACH_O_CPU_TYPE_ARM:
981 *type = bfd_arch_arm;
982 switch (msubtype)
983 {
984 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
985 *subtype = bfd_mach_arm_4T;
986 break;
987 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
988 *subtype = bfd_mach_arm_4T; /* Best fit ? */
989 break;
990 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
991 *subtype = bfd_mach_arm_5TE;
992 break;
993 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
994 *subtype = bfd_mach_arm_XScale;
995 break;
996 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
997 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
998 break;
999 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
1000 default:
1001 break;
1002 }
1003 break;
1004 case BFD_MACH_O_CPU_TYPE_MC88000:
1005 *type = bfd_arch_m88k;
1006 break;
1e8a024a
TG		 1007 case BFD_MACH_O_CPU_TYPE_SPARC:
1008 *type = bfd_arch_sparc;
1009 *subtype = bfd_mach_sparc;
1010 break;
0b2de107
TG		 1011 case BFD_MACH_O_CPU_TYPE_I860:
1012 *type = bfd_arch_i860;
1013 break;
1014 case BFD_MACH_O_CPU_TYPE_ALPHA:
1015 *type = bfd_arch_alpha;
1016 break;
1e8a024a
TG		 1017 case BFD_MACH_O_CPU_TYPE_POWERPC:
1018 *type = bfd_arch_powerpc;
c2f09c75 1019 *subtype = bfd_mach_ppc;
1e8a024a
TG		 1020 break;
1021 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1022 *type = bfd_arch_powerpc;
c2f09c75 1023 *subtype = bfd_mach_ppc64;
1e8a024a 1024 break;
d8028530
TG		 1025 case BFD_MACH_O_CPU_TYPE_ARM64:
1026 *type = bfd_arch_aarch64;
1027 *subtype = bfd_mach_aarch64;
1028 break;
3af9a47b 1029 default:
1e8a024a
TG		 1030 *type = bfd_arch_unknown;
1031 break;
3af9a47b
NC		 1032 }
1033}
a95a4550 1034
c9ffd2ea
TG		 1035/* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1036 number of bytes written or -1 in case of error. */
1037
1038static int
1039bfd_mach_o_pad4 (bfd *abfd, unsigned int len)
1040{
1041 if (len % 4 != 0)
1042 {
1043 char pad[4] = {0,0,0,0};
1044 unsigned int padlen = 4 - (len % 4);
1045
1046 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1047 return -1;
1048
1049 return padlen;
1050 }
1051 else
1052 return 0;
1053}
1054
1055/* Likewise, but for a command. */
1056
1057static int
1058bfd_mach_o_pad_command (bfd *abfd, unsigned int len)
1059{
1060 unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4;
1061
1062 if (len % align != 0)
1063 {
1064 char pad[8] = {0};
1065 unsigned int padlen = align - (len % align);
1066
1067 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1068 return -1;
1069
1070 return padlen;
1071 }
1072 else
1073 return 0;
1074}
1075
154a1ee5 1076static bfd_boolean
116c20d2
NC		 1077bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
1078{
46d1c23b 1079 struct mach_o_header_external raw;
1e8a024a
TG		 1080 unsigned int size;
1081
c2f09c75 1082 size = mach_o_wide_p (header) ?
154a1ee5 1083 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
116c20d2 1084
46d1c23b
TG		 1085 bfd_h_put_32 (abfd, header->magic, raw.magic);
1086 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
1087 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
1088 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
1089 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
1090 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
1091 bfd_h_put_32 (abfd, header->flags, raw.flags);
116c20d2 1092
c2f09c75 1093 if (mach_o_wide_p (header))
46d1c23b 1094 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1e8a024a 1095
c2f09c75 1096 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 1097 || bfd_bwrite (&raw, size, abfd) != size)
154a1ee5 1098 return FALSE;
116c20d2 1099
154a1ee5 1100 return TRUE;
116c20d2
NC		 1101}
1102
452216ab 1103static bfd_boolean
ab273af8 1104bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
116c20d2
NC		 1105{
1106 bfd_mach_o_thread_command *cmd = &command->command.thread;
1107 unsigned int i;
46d1c23b 1108 struct mach_o_thread_command_external raw;
92bc0e80 1109 unsigned int offset;
116c20d2
NC		 1110
1111 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1112 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1113
c9ffd2ea 1114 offset = BFD_MACH_O_LC_SIZE;
116c20d2
NC		 1115 for (i = 0; i < cmd->nflavours; i++)
1116 {
1117 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
46d1c23b
TG		 1118 BFD_ASSERT (cmd->flavours[i].offset ==
1119 (command->offset + offset + BFD_MACH_O_LC_SIZE));
116c20d2 1120
46d1c23b
TG		 1121 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
1122 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
116c20d2 1123
c2f09c75 1124 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 1125 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1126 return FALSE;
116c20d2 1127
46d1c23b 1128 offset += cmd->flavours[i].size + sizeof (raw);
116c20d2
NC		 1129 }
1130
452216ab 1131 return TRUE;
116c20d2
NC		 1132}
1133
c9ffd2ea
TG		 1134static bfd_boolean
1135bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
1136{
1137 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1138 struct mach_o_str_command_external raw;
1139 unsigned int namelen;
1140
1141 bfd_h_put_32 (abfd, cmd->name_offset, raw.str);
1142
1143 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1144 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1145 return FALSE;
1146
1147 namelen = strlen (cmd->name_str) + 1;
1148 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1149 return FALSE;
1150
1151 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1152 return FALSE;
1153
1154 return TRUE;
1155}
1156
1157static bfd_boolean
1158bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1159{
1160 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1161 struct mach_o_dylib_command_external raw;
1162 unsigned int namelen;
1163
1164 bfd_h_put_32 (abfd, cmd->name_offset, raw.name);
1165 bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp);
1166 bfd_h_put_32 (abfd, cmd->current_version, raw.current_version);
1167 bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version);
1168
1169 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1170 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1171 return FALSE;
1172
1173 namelen = strlen (cmd->name_str) + 1;
1174 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1175 return FALSE;
1176
1177 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1178 return FALSE;
1179
1180 return TRUE;
1181}
1182
1183static bfd_boolean
1184bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
1185{
1186 bfd_mach_o_main_command *cmd = &command->command.main;
1187 struct mach_o_entry_point_command_external raw;
1188
1189 bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff);
1190 bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize);
1191
1192 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1193 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1194 return FALSE;
1195
1196 return TRUE;
1197}
1198
1199static bfd_boolean
1200bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
1201{
1202 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
1203 struct mach_o_dyld_info_command_external raw;
1204
1205 bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off);
1206 bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size);
1207 bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off);
1208 bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size);
1209 bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off);
1210 bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size);
1211 bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off);
1212 bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size);
1213 bfd_h_put_32 (abfd, cmd->export_off, raw.export_off);
1214 bfd_h_put_32 (abfd, cmd->export_size, raw.export_size);
1215
1216 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1217 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1218 return FALSE;
1219
1220 if (cmd->rebase_size != 0)
1221 if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
1222 || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
1223 cmd->rebase_size))
1224 return FALSE;
1225
1226 if (cmd->bind_size != 0)
1227 if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
1228 || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
1229 cmd->bind_size))
1230 return FALSE;
1231
1232 if (cmd->weak_bind_size != 0)
1233 if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
1234 || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
1235 cmd->weak_bind_size))
1236 return FALSE;
1237
1238 if (cmd->lazy_bind_size != 0)
1239 if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
1240 || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
1241 cmd->lazy_bind_size))
1242 return FALSE;
1243
1244 if (cmd->export_size != 0)
1245 if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
1246 || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
1247 cmd->export_size))
1248 return FALSE;
1249
1250 return TRUE;
1251}
1252
92bc0e80
TG		 1253long
1254bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
1255 asection *asect)
1256{
1257 return (asect->reloc_count + 1) * sizeof (arelent *);
1258}
1259
19765f52
IS		 1260/* In addition to the need to byte-swap the symbol number, the bit positions
1261 of the fields in the relocation information vary per target endian-ness. */
1262
1263static void
1264bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel,
1265 unsigned char *fields)
1266{
1267 unsigned char info = fields[3];
1268
1269 if (bfd_big_endian (abfd))
1270 {
1271 rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2];
1272 rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1273 rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0;
68ffbac6 1274 rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT)
19765f52
IS		 1275 & BFD_MACH_O_LENGTH_MASK;
1276 rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0;
1277 }
1278 else
1279 {
1280 rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0];
1281 rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1282 rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0;
68ffbac6 1283 rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT)
19765f52
IS		 1284 & BFD_MACH_O_LENGTH_MASK;
1285 rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0;
1286 }
1287}
1288
b32e07d7 1289static int
46d1c23b
TG		 1290bfd_mach_o_canonicalize_one_reloc (bfd *abfd,
1291 struct mach_o_reloc_info_external *raw,
b32e07d7 1292 arelent *res, asymbol **syms)
92bc0e80 1293{
046b007d 1294 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
92bc0e80 1295 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
b32e07d7
TG		 1296 bfd_mach_o_reloc_info reloc;
1297 bfd_vma addr;
b32e07d7
TG		 1298 asymbol **sym;
1299
46d1c23b 1300 addr = bfd_get_32 (abfd, raw->r_address);
19765f52
IS		 1301 res->sym_ptr_ptr = NULL;
1302 res->addend = 0;
f4716ee2 1303
b32e07d7
TG		 1304 if (addr & BFD_MACH_O_SR_SCATTERED)
1305 {
1306 unsigned int j;
19765f52 1307 bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum);
b32e07d7 1308
19765f52
IS		 1309 /* Scattered relocation, can't be extern. */
1310 reloc.r_scattered = 1;
1311 reloc.r_extern = 0;
1312
1313 /* Extract section and offset from r_value (symnum). */
1314 reloc.r_value = symnum;
1315 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1316 end of the data for the section (e.g. in a calculation of section
1317 data length). At present, the symbol will end up associated with
1318 the following section or, if it falls within alignment padding, as
1319 null - which will assert later. */
b32e07d7
TG		 1320 for (j = 0; j < mdata->nsects; j++)
1321 {
1322 bfd_mach_o_section *sect = mdata->sections[j];
1323 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1324 {
1325 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1326 res->addend = symnum - sect->addr;
1327 break;
1328 }
1329 }
19765f52
IS		 1330
1331 /* Extract the info and address fields from r_address. */
b32e07d7
TG		 1332 reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1333 reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1334 reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL;
19765f52
IS		 1335 reloc.r_address = BFD_MACH_O_GET_SR_TYPE (addr);
1336 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
b32e07d7
TG		 1337 }
1338 else
1339 {
19765f52 1340 unsigned int num;
f4716ee2 1341
19765f52
IS		 1342 /* Non-scattered relocation. */
1343 reloc.r_scattered = 0;
f4716ee2 1344
19765f52
IS		 1345 /* The value and info fields have to be extracted dependent on target
1346 endian-ness. */
1347 bfd_mach_o_swap_in_non_scattered_reloc (abfd, &reloc, raw->r_symbolnum);
1348 num = reloc.r_value;
1349
1350 if (reloc.r_extern)
f4716ee2 1351 {
a1165289
NC		 1352 /* PR 17512: file: 8396-1185-0.004. */
1353 if (num >= bfd_get_symcount (abfd))
1354 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1355 else
1356 /* An external symbol number. */
1357 sym = syms + num;
f4716ee2 1358 }
23d72939 1359 else if (num == 0x00ffffff || num == 0)
f4716ee2
TG		 1360 {
1361 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1362 is generic code, we don't know wether this is really a PAIR.
1363 This value is almost certainly not a valid section number, hence
1364 this specific case to avoid an assertion failure.
1365 Target specific swap_reloc_in routine should adjust that. */
1366 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1367 }
1368 else
b32e07d7 1369 {
0a9d414a
NC		 1370 /* PR 17512: file: 006-2964-0.004. */
1371 if (num >= mdata->nsects)
1372 return -1;
1373
f4716ee2 1374 /* A section number. */
b32e07d7 1375 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1523fa24
TG		 1376 /* For a symbol defined in section S, the addend (stored in the
1377 binary) contains the address of the section. To comply with
19765f52 1378 bfd convention, subtract the section address.
1523fa24
TG		 1379 Use the address from the header, so that the user can modify
1380 the vma of the section. */
1381 res->addend = -mdata->sections[num - 1]->addr;
19765f52 1382 }
f4716ee2
TG		 1383 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1384 in the lower 16bits of the address value. So we have to find the
1385 'symbol' from the preceding reloc. We do this even though the
1386 section symbol is probably not needed here, because NULL symbol
1387 values cause an assert in generic BFD code. This must be done in
1388 the PPC swap_reloc_in routine. */
b32e07d7 1389 res->sym_ptr_ptr = sym;
f4716ee2 1390
19765f52
IS		 1391 /* The 'address' is just r_address.
1392 ??? maybe this should be masked with 0xffffff for safety. */
1393 res->address = addr;
1394 reloc.r_address = addr;
b32e07d7 1395 }
f4716ee2
TG		 1396
1397 /* We have set up a reloc with all the information present, so the swapper
1398 can modify address, value and addend fields, if necessary, to convey
1399 information in the generic BFD reloc that is mach-o specific. */
19765f52 1400
b32e07d7
TG		 1401 if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc))
1402 return -1;
1403 return 0;
1404}
1405
1406static int
1407bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1408 unsigned long count,
1409 arelent *res, asymbol **syms)
1410{
92bc0e80 1411 unsigned long i;
46d1c23b 1412 struct mach_o_reloc_info_external *native_relocs;
92bc0e80
TG		 1413 bfd_size_type native_size;
1414
92bc0e80 1415 /* Allocate and read relocs. */
b32e07d7 1416 native_size = count * BFD_MACH_O_RELENT_SIZE;
46d1c23b
TG		 1417 native_relocs =
1418 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
92bc0e80
TG		 1419 if (native_relocs == NULL)
1420 return -1;
1421
b32e07d7 1422 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
92bc0e80 1423 || bfd_bread (native_relocs, native_size, abfd) != native_size)
b32e07d7
TG		 1424 goto err;
1425
1426 for (i = 0; i < count; i++)
92bc0e80 1427 {
46d1c23b
TG		 1428 if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i],
1429 &res[i], syms) < 0)
b32e07d7 1430 goto err;
92bc0e80 1431 }
b32e07d7
TG		 1432 free (native_relocs);
1433 return i;
1434 err:
1435 free (native_relocs);
1436 return -1;
1437}
1438
1439long
1440bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1441 arelent **rels, asymbol **syms)
1442{
1443 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1444 unsigned long i;
1445 arelent *res;
1446
1447 if (asect->reloc_count == 0)
1448 return 0;
1449
1450 /* No need to go further if we don't know how to read relocs. */
1451 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1452 return 0;
92bc0e80 1453
dff55db0 1454 if (asect->relocation == NULL)
92bc0e80 1455 {
dff55db0
TG		 1456 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1457 if (res == NULL)
1458 return -1;
1459
1460 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1461 asect->reloc_count, res, syms) < 0)
1462 {
1463 free (res);
1464 return -1;
1465 }
1466 asect->relocation = res;
92bc0e80
TG		 1467 }
1468
dff55db0 1469 res = asect->relocation;
92bc0e80 1470 for (i = 0; i < asect->reloc_count; i++)
b32e07d7
TG		 1471 rels[i] = &res[i];
1472 rels[i] = NULL;
92bc0e80 1473
b32e07d7
TG		 1474 return i;
1475}
92bc0e80 1476
b32e07d7
TG		 1477long
1478bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1479{
1480 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
92bc0e80 1481
b32e07d7
TG		 1482 if (mdata->dysymtab == NULL)
1483 return 1;
dff55db0 1484 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
b32e07d7
TG		 1485 * sizeof (arelent *);
1486}
92bc0e80 1487
b32e07d7
TG		 1488long
1489bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1490 struct bfd_symbol **syms)
1491{
1492 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1493 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1494 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1495 unsigned long i;
1496 arelent *res;
1497
1498 if (dysymtab == NULL)
1499 return 0;
1500 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1501 return 0;
1502
1503 /* No need to go further if we don't know how to read relocs. */
1504 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1505 return 0;
1506
dff55db0 1507 if (mdata->dyn_reloc_cache == NULL)
b32e07d7 1508 {
dff55db0
TG		 1509 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1510 * sizeof (arelent));
1511 if (res == NULL)
1512 return -1;
b32e07d7 1513
dff55db0
TG		 1514 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1515 dysymtab->nextrel, res, syms) < 0)
1516 {
1517 free (res);
1518 return -1;
1519 }
1520
1521 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1522 dysymtab->nlocrel,
1523 res + dysymtab->nextrel, syms) < 0)
1524 {
1525 free (res);
1526 return -1;
1527 }
1528
1529 mdata->dyn_reloc_cache = res;
b32e07d7
TG		 1530 }
1531
dff55db0 1532 res = mdata->dyn_reloc_cache;
b32e07d7
TG		 1533 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1534 rels[i] = &res[i];
1535 rels[i] = NULL;
92bc0e80
TG		 1536 return i;
1537}
1538
19765f52
IS		 1539/* In addition to the need to byte-swap the symbol number, the bit positions
1540 of the fields in the relocation information vary per target endian-ness. */
1541
1542static void
1543bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
1544 bfd_mach_o_reloc_info *rel)
1545{
1546 unsigned char info = 0;
1547
1548 BFD_ASSERT (rel->r_type <= 15);
1549 BFD_ASSERT (rel->r_length <= 3);
1550
1551 if (bfd_big_endian (abfd))
1552 {
1553 fields[0] = (rel->r_value >> 16) & 0xff;
1554 fields[1] = (rel->r_value >> 8) & 0xff;
1555 fields[2] = rel->r_value & 0xff;
1556 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1557 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1558 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1559 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1560 }
1561 else
1562 {
1563 fields[2] = (rel->r_value >> 16) & 0xff;
1564 fields[1] = (rel->r_value >> 8) & 0xff;
1565 fields[0] = rel->r_value & 0xff;
1566 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1567 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1568 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1569 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1570 }
1571 fields[3] = info;
1572}
1573
92bc0e80 1574static bfd_boolean
ab273af8 1575bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
92bc0e80 1576{
92bc0e80
TG		 1577 unsigned int i;
1578 arelent **entries;
1579 asection *sec;
1580 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1581
1582 sec = section->bfdsection;
1583 if (sec->reloc_count == 0)
1584 return TRUE;
1585
1586 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1587 return TRUE;
1588
92bc0e80
TG		 1589 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1590 return FALSE;
1591
1592 /* Convert and write. */
1593 entries = section->bfdsection->orelocation;
1594 for (i = 0; i < section->nreloc; i++)
1595 {
1596 arelent *rel = entries[i];
46d1c23b 1597 struct mach_o_reloc_info_external raw;
92bc0e80
TG		 1598 bfd_mach_o_reloc_info info, *pinfo = &info;
1599
1600 /* Convert relocation to an intermediate representation. */
1601 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1602 return FALSE;
1603
1604 /* Lower the relocation info. */
1605 if (pinfo->r_scattered)
1606 {
1607 unsigned long v;
1608
1609 v = BFD_MACH_O_SR_SCATTERED
1610 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
ca148c5a
TG		 1611 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1612 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1613 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
46d1c23b
TG		 1614 /* Note: scattered relocs have field in reverse order... */
1615 bfd_put_32 (abfd, v, raw.r_address);
1616 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
92bc0e80
TG		 1617 }
1618 else
1619 {
46d1c23b 1620 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
19765f52
IS		 1621 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
1622 pinfo);
92bc0e80
TG		 1623 }
1624
46d1c23b 1625 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
92bc0e80
TG		 1626 != BFD_MACH_O_RELENT_SIZE)
1627 return FALSE;
1628 }
1629 return TRUE;
1630}
1631
452216ab 1632static bfd_boolean
ab273af8 1633bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1634{
46d1c23b
TG		 1635 struct mach_o_section_32_external raw;
1636
1637 memcpy (raw.sectname, section->sectname, 16);
72b5104c 1638 memcpy (raw.segname, section->segname, 16);
46d1c23b
TG		 1639 bfd_h_put_32 (abfd, section->addr, raw.addr);
1640 bfd_h_put_32 (abfd, section->size, raw.size);
1641 bfd_h_put_32 (abfd, section->offset, raw.offset);
1642 bfd_h_put_32 (abfd, section->align, raw.align);
1643 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1644 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1645 bfd_h_put_32 (abfd, section->flags, raw.flags);
1646 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1647 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1648
1649 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
92bc0e80 1650 != BFD_MACH_O_SECTION_SIZE)
452216ab 1651 return FALSE;
116c20d2 1652
452216ab 1653 return TRUE;
116c20d2
NC		 1654}
1655
452216ab 1656static bfd_boolean
ab273af8 1657bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1658{
46d1c23b
TG		 1659 struct mach_o_section_64_external raw;
1660
1661 memcpy (raw.sectname, section->sectname, 16);
1662 memcpy (raw.segname, section->segname, 16);
1663 bfd_h_put_64 (abfd, section->addr, raw.addr);
1664 bfd_h_put_64 (abfd, section->size, raw.size);
1665 bfd_h_put_32 (abfd, section->offset, raw.offset);
1666 bfd_h_put_32 (abfd, section->align, raw.align);
1667 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1668 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1669 bfd_h_put_32 (abfd, section->flags, raw.flags);
1670 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1671 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1672 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1673
1674 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
92bc0e80 1675 != BFD_MACH_O_SECTION_64_SIZE)
452216ab 1676 return FALSE;
116c20d2 1677
452216ab 1678 return TRUE;
1e8a024a
TG		 1679}
1680
452216ab 1681static bfd_boolean
ab273af8 1682bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1683{
46d1c23b 1684 struct mach_o_segment_command_32_external raw;
1e8a024a 1685 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1686 bfd_mach_o_section *sec;
1e8a024a 1687
c2f09c75
TG		 1688 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1689
f1bde64c
TG		 1690 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1691 if (!bfd_mach_o_write_relocs (abfd, sec))
452216ab 1692 return FALSE;
c2f09c75 1693
46d1c23b
TG		 1694 memcpy (raw.segname, seg->segname, 16);
1695 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1696 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1697 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1698 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1699 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1700 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1701 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1702 bfd_h_put_32 (abfd, seg->flags, raw.flags);
68ffbac6 1703
46d1c23b
TG		 1704 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1705 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1706 return FALSE;
1e8a024a 1707
f1bde64c 1708 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
452216ab
TG		 1709 if (!bfd_mach_o_write_section_32 (abfd, sec))
1710 return FALSE;
1e8a024a 1711
452216ab 1712 return TRUE;
116c20d2
NC		 1713}
1714
452216ab 1715static bfd_boolean
ab273af8 1716bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1717{
46d1c23b 1718 struct mach_o_segment_command_64_external raw;
c2f09c75 1719 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1720 bfd_mach_o_section *sec;
c2f09c75
TG		 1721
1722 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1723
f1bde64c
TG		 1724 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1725 if (!bfd_mach_o_write_relocs (abfd, sec))
452216ab 1726 return FALSE;
c2f09c75 1727
46d1c23b
TG		 1728 memcpy (raw.segname, seg->segname, 16);
1729 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1730 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1731 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1732 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1733 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1734 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1735 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1736 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1737
1738 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1739 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1740 return FALSE;
c2f09c75 1741
f1bde64c 1742 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
452216ab
TG		 1743 if (!bfd_mach_o_write_section_64 (abfd, sec))
1744 return FALSE;
c2f09c75 1745
452216ab 1746 return TRUE;
1e8a024a
TG		 1747}
1748
c2f09c75 1749static bfd_boolean
c9ffd2ea 1750bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
116c20d2 1751{
046b007d 1752 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
116c20d2 1753 unsigned long i;
c2f09c75 1754 unsigned int wide = bfd_mach_o_wide_p (abfd);
c2f09c75
TG		 1755 struct bfd_strtab_hash *strtab;
1756 asymbol **symbols = bfd_get_outsymbols (abfd);
c9ffd2ea 1757 int padlen;
c2f09c75
TG		 1758
1759 /* Write the symbols first. */
1760 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1761 return FALSE;
1762
c2f09c75
TG		 1763 strtab = _bfd_stringtab_init ();
1764 if (strtab == NULL)
1765 return FALSE;
116c20d2 1766
a4551119
TG		 1767 if (sym->nsyms > 0)
1768 /* Although we don't strictly need to do this, for compatibility with
1769 Darwin system tools, actually output an empty string for the index
1770 0 entry. */
1771 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1772
116c20d2
NC		 1773 for (i = 0; i < sym->nsyms; i++)
1774 {
91d6fa6a 1775 bfd_size_type str_index;
92bc0e80 1776 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
68ffbac6 1777
92bc0e80 1778 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
7f307238 1779 /* An index of 0 always means the empty string. */
91d6fa6a 1780 str_index = 0;
c2f09c75
TG		 1781 else
1782 {
91d6fa6a 1783 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
7f307238 1784
91d6fa6a 1785 if (str_index == (bfd_size_type) -1)
c2f09c75
TG		 1786 goto err;
1787 }
46d1c23b 1788
c2f09c75 1789 if (wide)
46d1c23b
TG		 1790 {
1791 struct mach_o_nlist_64_external raw;
1792
1793 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1794 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1795 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1796 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1797 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1798 raw.n_value);
1799
1800 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1801 goto err;
1802 }
c2f09c75 1803 else
46d1c23b
TG		 1804 {
1805 struct mach_o_nlist_external raw;
116c20d2 1806
46d1c23b
TG		 1807 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1808 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1809 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1810 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1811 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1812 raw.n_value);
1813
1814 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1815 goto err;
1816 }
116c20d2 1817 }
c2f09c75 1818 sym->strsize = _bfd_stringtab_size (strtab);
92bc0e80
TG		 1819 sym->stroff = mdata->filelen;
1820 mdata->filelen += sym->strsize;
116c20d2 1821
c9ffd2ea
TG		 1822 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
1823 return FALSE;
1824
c2f09c75
TG		 1825 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
1826 goto err;
1827 _bfd_stringtab_free (strtab);
116c20d2 1828
c9ffd2ea
TG		 1829 /* Pad string table. */
1830 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
1831 if (padlen < 0)
1832 return FALSE;
1833 mdata->filelen += padlen;
1834 sym->strsize += padlen;
116c20d2 1835
c2f09c75 1836 return TRUE;
116c20d2 1837
c2f09c75
TG		 1838 err:
1839 _bfd_stringtab_free (strtab);
1840 return FALSE;
116c20d2
NC		 1841}
1842
c9ffd2ea
TG		 1843static bfd_boolean
1844bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1845{
1846 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1847 struct mach_o_symtab_command_external raw;
1848
1849 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1850
1851 /* The command. */
1852 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1853 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1854 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1855 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1856
1857 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1858 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1859 return FALSE;
1860
1861 return TRUE;
1862}
1863
1864/* Count the number of indirect symbols in the image.
1865 Requires that the sections are in their final order. */
1866
1867static unsigned int
1868bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
1869{
1870 unsigned int i;
1871 unsigned int nisyms = 0;
1872
1873 for (i = 0; i < mdata->nsects; ++i)
1874 {
1875 bfd_mach_o_section *sec = mdata->sections[i];
1876
1877 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1878 {
1879 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1880 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1881 case BFD_MACH_O_S_SYMBOL_STUBS:
1882 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1883 break;
1884 default:
1885 break;
1886 }
1887 }
1888 return nisyms;
1889}
1890
1891/* Create the dysymtab. */
1892
1893static bfd_boolean
1894bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
1895{
1896 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1897
1898 /* TODO:
1899 We are not going to try and fill these in yet and, moreover, we are
1900 going to bail if they are already set. */
1901 if (cmd->nmodtab != 0
1902 || cmd->ntoc != 0
1903 || cmd->nextrefsyms != 0)
1904 {
1905 (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet"
1906 " implemented for dysymtab commands."));
1907 return FALSE;
1908 }
1909
1910 cmd->ilocalsym = 0;
1911
1912 if (bfd_get_symcount (abfd) > 0)
1913 {
1914 asymbol **symbols = bfd_get_outsymbols (abfd);
1915 unsigned long i;
1916
1917 /* Count the number of each kind of symbol. */
1918 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1919 {
1920 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1921 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
1922 break;
1923 }
1924 cmd->nlocalsym = i;
1925 cmd->iextdefsym = i;
1926 for (; i < bfd_get_symcount (abfd); ++i)
1927 {
1928 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1929 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
1930 break;
1931 }
1932 cmd->nextdefsym = i - cmd->nlocalsym;
1933 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
1934 cmd->nundefsym = bfd_get_symcount (abfd)
1935 - cmd->nlocalsym
1936 - cmd->nextdefsym;
1937 }
1938 else
1939 {
1940 cmd->nlocalsym = 0;
1941 cmd->iextdefsym = 0;
1942 cmd->nextdefsym = 0;
1943 cmd->iundefsym = 0;
1944 cmd->nundefsym = 0;
1945 }
1946
1947 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
1948 if (cmd->nindirectsyms > 0)
1949 {
1950 unsigned i;
1951 unsigned n;
1952
1953 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
1954 cmd->indirectsymoff = mdata->filelen;
1955 mdata->filelen += cmd->nindirectsyms * 4;
1956
1957 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
1958 if (cmd->indirect_syms == NULL)
1959 return FALSE;
1960
1961 n = 0;
1962 for (i = 0; i < mdata->nsects; ++i)
1963 {
1964 bfd_mach_o_section *sec = mdata->sections[i];
1965
1966 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1967 {
1968 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1969 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1970 case BFD_MACH_O_S_SYMBOL_STUBS:
1971 {
1972 unsigned j, num;
1973 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
1974
1975 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1976 if (isyms == NULL || num == 0)
1977 break;
1978 /* Record the starting index in the reserved1 field. */
1979 sec->reserved1 = n;
1980 for (j = 0; j < num; j++, n++)
1981 {
1982 if (isyms[j] == NULL)
1983 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
1984 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
1985 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
1986 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
1987 | BFD_MACH_O_INDIRECT_SYM_ABS;
1988 else
1989 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
1990 }
1991 }
1992 break;
1993 default:
1994 break;
1995 }
1996 }
1997 }
1998
1999 return TRUE;
2000}
2001
7f307238
IS		 2002/* Write a dysymtab command.
2003 TODO: Possibly coalesce writes of smaller objects. */
2004
2005static bfd_boolean
2006bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2007{
2008 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2009
2010 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2011
2012 if (cmd->nmodtab != 0)
2013 {
2014 unsigned int i;
2015
2016 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2017 return FALSE;
2018
2019 for (i = 0; i < cmd->nmodtab; i++)
2020 {
2021 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2022 unsigned int iinit;
2023 unsigned int ninit;
2024
2025 iinit = module->iinit & 0xffff;
2026 iinit |= ((module->iterm & 0xffff) << 16);
2027
2028 ninit = module->ninit & 0xffff;
2029 ninit |= ((module->nterm & 0xffff) << 16);
2030
2031 if (bfd_mach_o_wide_p (abfd))
2032 {
2033 struct mach_o_dylib_module_64_external w;
2034
2035 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2036 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2037 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2038 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2039 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2040 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2041 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2042 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2043 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2044 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2045 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2046 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2047 &w.objc_module_info_addr);
2048 bfd_h_put_32 (abfd, module->objc_module_info_size,
2049 &w.objc_module_info_size);
2050
2051 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2052 return FALSE;
2053 }
2054 else
2055 {
2056 struct mach_o_dylib_module_external n;
2057
2058 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2059 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2060 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2061 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2062 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2063 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2064 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2065 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2066 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2067 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2068 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2069 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2070 &n.objc_module_info_addr);
2071 bfd_h_put_32 (abfd, module->objc_module_info_size,
2072 &n.objc_module_info_size);
2073
2074 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2075 return FALSE;
2076 }
2077 }
2078 }
2079
2080 if (cmd->ntoc != 0)
2081 {
2082 unsigned int i;
2083
2084 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2085 return FALSE;
2086
2087 for (i = 0; i < cmd->ntoc; i++)
2088 {
2089 struct mach_o_dylib_table_of_contents_external raw;
2090 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2091
2092 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2093 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2094
2095 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2096 return FALSE;
2097 }
2098 }
68ffbac6 2099
7f307238
IS		 2100 if (cmd->nindirectsyms > 0)
2101 {
2102 unsigned int i;
2103
2104 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2105 return FALSE;
2106
2107 for (i = 0; i < cmd->nindirectsyms; ++i)
2108 {
2109 unsigned char raw[4];
2110
2111 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2112 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2113 return FALSE;
68ffbac6 2114 }
7f307238
IS		 2115 }
2116
2117 if (cmd->nextrefsyms != 0)
2118 {
2119 unsigned int i;
2120
2121 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2122 return FALSE;
2123
2124 for (i = 0; i < cmd->nextrefsyms; i++)
2125 {
2126 unsigned long v;
2127 unsigned char raw[4];
2128 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2129
2130 /* Fields isym and flags are written as bit-fields, thus we need
2131 a specific processing for endianness. */
2132
2133 if (bfd_big_endian (abfd))
2134 {
2135 v = ((ref->isym & 0xffffff) << 8);
2136 v |= ref->flags & 0xff;
2137 }
2138 else
2139 {
2140 v = ref->isym & 0xffffff;
2141 v |= ((ref->flags & 0xff) << 24);
2142 }
2143
2144 bfd_h_put_32 (abfd, v, raw);
2145 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2146 return FALSE;
2147 }
2148 }
2149
2150 /* The command. */
2151 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2152 return FALSE;
2153 else
2154 {
2155 struct mach_o_dysymtab_command_external raw;
2156
2157 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2158 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2159 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2160 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2161 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2162 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2163 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2164 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2165 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2166 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2167 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2168 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2169 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2170 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2171 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2172 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2173 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2174 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2175
2176 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2177 return FALSE;
2178 }
2179
2180 return TRUE;
2181}
2182
2183static unsigned
b22161d6 2184bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
7f307238 2185{
b22161d6 2186 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
68588f95
IS		 2187
2188 /* Just leave debug symbols where they are (pretend they are local, and
2189 then they will just be sorted on position). */
b22161d6 2190 if (s->n_type & BFD_MACH_O_N_STAB)
68588f95
IS		 2191 return 0;
2192
7f307238 2193 /* Local (we should never see an undefined local AFAICT). */
b22161d6 2194 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
7f307238
IS		 2195 return 0;
2196
2197 /* Common symbols look like undefined externs. */
68588f95 2198 if (mtyp == BFD_MACH_O_N_UNDF)
7f307238
IS		 2199 return 2;
2200
b22161d6 2201 /* A defined non-local, non-debug symbol. */
7f307238
IS		 2202 return 1;
2203}
2204
2205static int
2206bfd_mach_o_cf_symbols (const void *a, const void *b)
2207{
2208 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2209 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2210 unsigned int soa, sob;
2211
b22161d6
IS		 2212 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2213 sob = bfd_mach_o_primary_symbol_sort_key (sb);
7f307238
IS		 2214 if (soa < sob)
2215 return -1;
2216
2217 if (soa > sob)
2218 return 1;
2219
68588f95 2220 /* If it's local or stab, just preserve the input order. */
7f307238
IS		 2221 if (soa == 0)
2222 {
2223 if (sa->symbol.udata.i < sb->symbol.udata.i)
2224 return -1;
2225 if (sa->symbol.udata.i > sb->symbol.udata.i)
2226 return 1;
b22161d6
IS		 2227
2228 /* This is probably an error. */
7f307238
IS		 2229 return 0;
2230 }
2231
b22161d6
IS		 2232 /* The second sort key is name. */
2233 return strcmp (sa->symbol.name, sb->symbol.name);
7f307238
IS		 2234}
2235
2236/* Process the symbols.
2237
2238 This should be OK for single-module files - but it is not likely to work
2239 for multi-module shared libraries.
2240
2241 (a) If the application has not filled in the relevant mach-o fields, make
2242 an estimate.
2243
2244 (b) Order them, like this:
2245 ( i) local.
2246 (unsorted)
2247 ( ii) external defined
2248 (by name)
b22161d6 2249 (iii) external undefined/common
7f307238
IS		 2250 (by name)
2251 ( iv) common
2252 (by name)
b22161d6 2253*/
92bc0e80
TG		 2254
2255static bfd_boolean
b22161d6 2256bfd_mach_o_mangle_symbols (bfd *abfd)
92bc0e80
TG		 2257{
2258 unsigned long i;
2259 asymbol **symbols = bfd_get_outsymbols (abfd);
2260
7f307238
IS		 2261 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2262 return TRUE;
2263
92bc0e80
TG		 2264 for (i = 0; i < bfd_get_symcount (abfd); i++)
2265 {
2266 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2267
b22161d6
IS		 2268 /* We use this value, which is out-of-range as a symbol index, to signal
2269 that the mach-o-specific data are not filled in and need to be created
2270 from the bfd values. It is much preferable for the application to do
2271 this, since more meaningful diagnostics can be made that way. */
2272
2273 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
92bc0e80 2274 {
b22161d6
IS		 2275 /* No symbol information has been set - therefore determine
2276 it from the bfd symbol flags/info. */
92bc0e80
TG		 2277 if (s->symbol.section == bfd_abs_section_ptr)
2278 s->n_type = BFD_MACH_O_N_ABS;
2279 else if (s->symbol.section == bfd_und_section_ptr)
2280 {
2281 s->n_type = BFD_MACH_O_N_UNDF;
2282 if (s->symbol.flags & BSF_WEAK)
2283 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
7f307238
IS		 2284 /* mach-o automatically makes undefined symbols extern. */
2285 s->n_type |= BFD_MACH_O_N_EXT;
b22161d6 2286 s->symbol.flags |= BSF_GLOBAL;
92bc0e80
TG		 2287 }
2288 else if (s->symbol.section == bfd_com_section_ptr)
b22161d6
IS		 2289 {
2290 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2291 s->symbol.flags |= BSF_GLOBAL;
2292 }
92bc0e80
TG		 2293 else
2294 s->n_type = BFD_MACH_O_N_SECT;
68ffbac6 2295
92bc0e80
TG		 2296 if (s->symbol.flags & BSF_GLOBAL)
2297 s->n_type |= BFD_MACH_O_N_EXT;
2298 }
2299
7f307238 2300 /* Put the section index in, where required. */
68588f95 2301 if ((s->symbol.section != bfd_abs_section_ptr
92bc0e80
TG		 2302 && s->symbol.section != bfd_und_section_ptr
2303 && s->symbol.section != bfd_com_section_ptr)
68588f95
IS		 2304 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2305 && s->symbol.name == NULL))
707e555b 2306 s->n_sect = s->symbol.section->output_section->target_index;
92bc0e80 2307
b22161d6
IS		 2308 /* Number to preserve order for local and debug syms. */
2309 s->symbol.udata.i = i;
7f307238
IS		 2310 }
2311
b22161d6
IS		 2312 /* Sort the symbols. */
2313 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2314 sizeof (asymbol *), bfd_mach_o_cf_symbols);
7f307238 2315
b22161d6
IS		 2316 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2317 {
2318 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2319 s->symbol.udata.i = i; /* renumber. */
7f307238
IS		 2320 }
2321
2322 return TRUE;
2323}
2324
2325/* We build a flat table of sections, which can be re-ordered if necessary.
2326 Fill in the section number and other mach-o-specific data. */
2327
2328static bfd_boolean
2329bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2330{
2331 asection *sec;
2332 unsigned target_index;
2333 unsigned nsect;
2334
2335 nsect = bfd_count_sections (abfd);
68ffbac6 2336
7f307238
IS		 2337 /* Don't do it if it's already set - assume the application knows what it's
2338 doing. */
2339 if (mdata->nsects == nsect
2340 && (mdata->nsects == 0 || mdata->sections != NULL))
2341 return TRUE;
2342
a1165289
NC		 2343 /* We need to check that this can be done... */
2344 if (nsect > 255)
2345 {
2346 (*_bfd_error_handler) (_("mach-o: there are too many sections (%u)"
2347 " maximum is 255,\n"), nsect);
2348 return FALSE;
2349 }
2350
7f307238 2351 mdata->nsects = nsect;
68ffbac6 2352 mdata->sections = bfd_alloc (abfd,
7f307238
IS		 2353 mdata->nsects * sizeof (bfd_mach_o_section *));
2354 if (mdata->sections == NULL)
2355 return FALSE;
2356
7f307238 2357 /* Create Mach-O sections.
68ffbac6 2358 Section type, attribute and align should have been set when the
7f307238
IS		 2359 section was created - either read in or specified. */
2360 target_index = 0;
2361 for (sec = abfd->sections; sec; sec = sec->next)
2362 {
2363 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2364 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2365
2366 mdata->sections[target_index] = msect;
2367
2368 msect->addr = bfd_get_section_vma (abfd, sec);
2369 msect->size = bfd_get_section_size (sec);
2370
68ffbac6 2371 /* Use the largest alignment set, in case it was bumped after the
7f307238
IS		 2372 section was created. */
2373 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2374
2375 msect->offset = 0;
2376 sec->target_index = ++target_index;
92bc0e80 2377 }
7f307238 2378
92bc0e80
TG		 2379 return TRUE;
2380}
2381
154a1ee5 2382bfd_boolean
116c20d2 2383bfd_mach_o_write_contents (bfd *abfd)
3af9a47b 2384{
046b007d 2385 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea
TG		 2386 bfd_mach_o_load_command *cmd;
2387 bfd_mach_o_symtab_command *symtab = NULL;
2388 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2389 bfd_mach_o_segment_command *linkedit = NULL;
3af9a47b 2390
7f307238 2391 /* Make the commands, if not already present. */
c9ffd2ea
TG		 2392 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2393 return FALSE;
2394 abfd->output_has_begun = TRUE;
92bc0e80 2395
c9ffd2ea 2396 /* Write the header. */
154a1ee5 2397 if (!bfd_mach_o_write_header (abfd, &mdata->header))
b34976b6 2398 return FALSE;
3af9a47b 2399
c9ffd2ea
TG		 2400 /* First pass: allocate the linkedit segment. */
2401 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2402 switch (cmd->type)
2403 {
2404 case BFD_MACH_O_LC_SEGMENT_64:
2405 case BFD_MACH_O_LC_SEGMENT:
2406 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2407 linkedit = &cmd->command.segment;
2408 break;
2409 case BFD_MACH_O_LC_SYMTAB:
2410 symtab = &cmd->command.symtab;
2411 break;
2412 case BFD_MACH_O_LC_DYSYMTAB:
2413 dysymtab = &cmd->command.dysymtab;
2414 break;
2415 case BFD_MACH_O_LC_DYLD_INFO:
2416 {
2417 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2418
2419 if (di->rebase_size != 0)
2420 {
2421 di->rebase_off = mdata->filelen;
2422 mdata->filelen += di->rebase_size;
2423 }
2424 if (di->bind_size != 0)
2425 {
2426 di->bind_off = mdata->filelen;
2427 mdata->filelen += di->bind_size;
2428 }
2429 if (di->weak_bind_size != 0)
2430 {
2431 di->weak_bind_off = mdata->filelen;
2432 mdata->filelen += di->weak_bind_size;
2433 }
2434 if (di->lazy_bind_size != 0)
2435 {
2436 di->lazy_bind_off = mdata->filelen;
2437 mdata->filelen += di->lazy_bind_size;
2438 }
2439 if (di->export_size != 0)
2440 {
2441 di->export_off = mdata->filelen;
2442 mdata->filelen += di->export_size;
2443 }
2444 }
2445 break;
2446 case BFD_MACH_O_LC_LOAD_DYLIB:
2447 case BFD_MACH_O_LC_LOAD_DYLINKER:
2448 case BFD_MACH_O_LC_MAIN:
2449 /* Nothing to do. */
2450 break;
2451 default:
2452 (*_bfd_error_handler)
2453 (_("unable to allocate data for load command 0x%lx"),
2454 (unsigned long) cmd->type);
2455 break;
2456 }
2457
2458 /* Specially handle symtab and dysymtab. */
2459
2460 /* Pre-allocate the symbol table (but not the string table). The reason
2461 is that the dysymtab is after the symbol table but before the string
2462 table (required by the native strip tool). */
2463 if (symtab != NULL)
2464 {
2465 unsigned int symlen;
2466 unsigned int wide = bfd_mach_o_wide_p (abfd);
2467
2468 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2469
2470 /* Align for symbols. */
2471 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2472 symtab->symoff = mdata->filelen;
2473
2474 symtab->nsyms = bfd_get_symcount (abfd);
2475 mdata->filelen += symtab->nsyms * symlen;
2476 }
2477
2478 /* Build the dysymtab. */
2479 if (dysymtab != NULL)
2480 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2481 return FALSE;
2482
2483 /* Write symtab and strtab. */
2484 if (symtab != NULL)
2485 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2486 return FALSE;
2487
2488 /* Adjust linkedit size. */
2489 if (linkedit != NULL)
2490 {
2491 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2492
2493 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2494 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2495 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2496
2497 linkedit->initprot = BFD_MACH_O_PROT_READ;
2498 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2499 | BFD_MACH_O_PROT_EXECUTE;
2500 }
2501
2502 /* Second pass: write commands. */
2503 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 2504 {
46d1c23b 2505 struct mach_o_load_command_external raw;
3af9a47b
NC		 2506 unsigned long typeflag;
2507
c9ffd2ea 2508 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
3af9a47b 2509
46d1c23b 2510 bfd_h_put_32 (abfd, typeflag, raw.cmd);
c9ffd2ea 2511 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
3af9a47b 2512
c9ffd2ea 2513 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
46d1c23b 2514 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
b34976b6 2515 return FALSE;
3af9a47b 2516
c9ffd2ea 2517 switch (cmd->type)
3af9a47b
NC		 2518 {
2519 case BFD_MACH_O_LC_SEGMENT:
c9ffd2ea 2520 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
1e8a024a
TG		 2521 return FALSE;
2522 break;
2523 case BFD_MACH_O_LC_SEGMENT_64:
c9ffd2ea 2524 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
b34976b6 2525 return FALSE;
3af9a47b
NC		 2526 break;
2527 case BFD_MACH_O_LC_SYMTAB:
c9ffd2ea 2528 if (!bfd_mach_o_write_symtab (abfd, cmd))
b34976b6 2529 return FALSE;
3af9a47b 2530 break;
7f307238 2531 case BFD_MACH_O_LC_DYSYMTAB:
c9ffd2ea 2532 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
7f307238
IS		 2533 return FALSE;
2534 break;
3af9a47b
NC		 2535 case BFD_MACH_O_LC_THREAD:
2536 case BFD_MACH_O_LC_UNIXTHREAD:
c9ffd2ea 2537 if (!bfd_mach_o_write_thread (abfd, cmd))
b34976b6 2538 return FALSE;
3af9a47b 2539 break;
3af9a47b 2540 case BFD_MACH_O_LC_LOAD_DYLIB:
c9ffd2ea
TG		 2541 if (!bfd_mach_o_write_dylib (abfd, cmd))
2542 return FALSE;
2543 break;
3af9a47b 2544 case BFD_MACH_O_LC_LOAD_DYLINKER:
c9ffd2ea
TG		 2545 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2546 return FALSE;
2547 break;
2548 case BFD_MACH_O_LC_MAIN:
2549 if (!bfd_mach_o_write_main (abfd, cmd))
2550 return FALSE;
2551 break;
2552 case BFD_MACH_O_LC_DYLD_INFO:
2553 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2554 return FALSE;
3af9a47b
NC		 2555 break;
2556 default:
3cc27770
TG		 2557 (*_bfd_error_handler)
2558 (_("unable to write unknown load command 0x%lx"),
c9ffd2ea 2559 (unsigned long) cmd->type);
b34976b6 2560 return FALSE;
3af9a47b
NC		 2561 }
2562 }
2563
b34976b6 2564 return TRUE;
3af9a47b
NC		 2565}
2566
f1bde64c
TG		 2567static void
2568bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
c9ffd2ea 2569 bfd_mach_o_section *s)
f1bde64c 2570{
f1bde64c
TG		 2571 if (seg->sect_head == NULL)
2572 seg->sect_head = s;
2573 else
2574 seg->sect_tail->next = s;
2575 seg->sect_tail = s;
2576}
2577
2578/* Create section Mach-O flags from BFD flags. */
2579
2580static void
3cc27770
TG		 2581bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2582 asection *sec)
f1bde64c
TG		 2583{
2584 flagword bfd_flags;
2585 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2586
2587 /* Create default flags. */
2588 bfd_flags = bfd_get_section_flags (abfd, sec);
2589 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2590 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2591 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2592 | BFD_MACH_O_S_REGULAR;
2593 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2594 s->flags = BFD_MACH_O_S_ZEROFILL;
2595 else if (bfd_flags & SEC_DEBUGGING)
2596 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2597 else
2598 s->flags = BFD_MACH_O_S_REGULAR;
2599}
2600
7f307238 2601static bfd_boolean
c9ffd2ea 2602bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
7f307238 2603{
c9ffd2ea
TG		 2604 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2605 unsigned int i, j;
7f307238 2606
7f307238 2607 seg->vmaddr = 0;
7f307238 2608 seg->fileoff = mdata->filelen;
c9ffd2ea
TG		 2609 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2610 | BFD_MACH_O_PROT_EXECUTE;
2611 seg->maxprot = seg->initprot;
7f307238 2612
68ffbac6 2613 /* Append sections to the segment.
09903f4b
IS		 2614
2615 This is a little tedious, we have to honor the need to account zerofill
2616 sections after all the rest. This forces us to do the calculation of
68ffbac6 2617 total vmsize in three passes so that any alignment increments are
09903f4b 2618 properly accounted. */
7f307238
IS		 2619 for (i = 0; i < mdata->nsects; ++i)
2620 {
2621 bfd_mach_o_section *s = mdata->sections[i];
2622 asection *sec = s->bfdsection;
2623
09903f4b
IS		 2624 /* Although we account for zerofill section sizes in vm order, they are
2625 placed in the file in source sequence. */
c9ffd2ea 2626 bfd_mach_o_append_section_to_segment (seg, s);
e5081f2f 2627 s->offset = 0;
68ffbac6 2628
c9ffd2ea
TG		 2629 /* Zerofill sections have zero file size & offset, the only content
2630 written to the file is the symbols. */
e5081f2f 2631 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
c9ffd2ea
TG		 2632 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2633 == BFD_MACH_O_S_GB_ZEROFILL))
e5081f2f
IS		 2634 continue;
2635
c9ffd2ea
TG		 2636 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2637 sections, even those with zero size. */
e5081f2f 2638 if (s->size > 0)
c9ffd2ea 2639 {
09903f4b
IS		 2640 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2641 seg->vmsize += s->size;
2642
c9ffd2ea
TG		 2643 /* MH_OBJECT files have unaligned content. */
2644 if (1)
2645 {
2646 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2647 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2648 }
09903f4b
IS		 2649 seg->filesize += s->size;
2650
c9ffd2ea
TG		 2651 /* The system tools write even zero-sized sections with an offset
2652 field set to the current file position. */
7f307238 2653 s->offset = mdata->filelen;
c9ffd2ea 2654 }
7f307238
IS		 2655
2656 sec->filepos = s->offset;
7f307238
IS		 2657 mdata->filelen += s->size;
2658 }
2659
3cc27770 2660 /* Now pass through again, for zerofill, only now we just update the
c9ffd2ea
TG		 2661 vmsize, and then for zerofill_GB. */
2662 for (j = 0; j < 2; j++)
09903f4b 2663 {
c9ffd2ea 2664 unsigned int stype;
68ffbac6 2665
c9ffd2ea
TG		 2666 if (j == 0)
2667 stype = BFD_MACH_O_S_ZEROFILL;
2668 else
2669 stype = BFD_MACH_O_S_GB_ZEROFILL;
09903f4b 2670
c9ffd2ea
TG		 2671 for (i = 0; i < mdata->nsects; ++i)
2672 {
2673 bfd_mach_o_section *s = mdata->sections[i];
2674
2675 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2676 continue;
2677
2678 if (s->size > 0)
2679 {
2680 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2681 seg->vmsize += s->size;
2682 }
09903f4b
IS		 2683 }
2684 }
bb76d940 2685
09903f4b 2686 /* Allocate space for the relocations. */
707e555b 2687 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
bb76d940
IS		 2688
2689 for (i = 0; i < mdata->nsects; ++i)
2690 {
2691 bfd_mach_o_section *ms = mdata->sections[i];
2692 asection *sec = ms->bfdsection;
68ffbac6 2693
c9ffd2ea
TG		 2694 ms->nreloc = sec->reloc_count;
2695 if (ms->nreloc == 0)
bb76d940 2696 {
c9ffd2ea 2697 /* Clear nreloc and reloff if there is no relocs. */
bb76d940
IS		 2698 ms->reloff = 0;
2699 continue;
2700 }
2701 sec->rel_filepos = mdata->filelen;
2702 ms->reloff = sec->rel_filepos;
2703 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2704 }
7f307238
IS		 2705
2706 return TRUE;
2707}
2708
c9ffd2ea
TG		 2709static bfd_boolean
2710bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
50d10658 2711{
c9ffd2ea 2712 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
50d10658 2713 unsigned int i;
c9ffd2ea
TG		 2714 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2715 bfd_vma vma;
2716 bfd_mach_o_section *s;
2717
2718 seg->vmsize = 0;
50d10658 2719
c9ffd2ea
TG		 2720 seg->fileoff = mdata->filelen;
2721 seg->maxprot = 0;
2722 seg->initprot = 0;
2723 seg->flags = 0;
2724
2725 /* Append sections to the segment. We assume they are properly ordered
2726 by vma (but we check that). */
2727 vma = 0;
50d10658
IS		 2728 for (i = 0; i < mdata->nsects; ++i)
2729 {
c9ffd2ea 2730 s = mdata->sections[i];
50d10658 2731
c9ffd2ea
TG		 2732 /* Consider only sections for this segment. */
2733 if (strcmp (seg->segname, s->segname) != 0)
2734 continue;
50d10658 2735
c9ffd2ea 2736 bfd_mach_o_append_section_to_segment (seg, s);
7f307238 2737
c9ffd2ea
TG		 2738 BFD_ASSERT (s->addr >= vma);
2739 vma = s->addr + s->size;
7f307238
IS		 2740 }
2741
c9ffd2ea
TG		 2742 /* Set segment file offset: make it page aligned. */
2743 vma = seg->sect_head->addr;
2744 seg->vmaddr = vma & ~pagemask;
2745 if ((mdata->filelen & pagemask) > (vma & pagemask))
2746 mdata->filelen += pagemask + 1;
2747 seg->fileoff = mdata->filelen & ~pagemask;
2748 mdata->filelen = seg->fileoff + (vma & pagemask);
7f307238 2749
c9ffd2ea
TG		 2750 /* Set section file offset. */
2751 for (s = seg->sect_head; s != NULL; s = s->next)
7f307238 2752 {
c9ffd2ea
TG		 2753 asection *sec = s->bfdsection;
2754 flagword flags = bfd_get_section_flags (abfd, sec);
b22161d6 2755
c9ffd2ea
TG		 2756 /* Adjust segment size. */
2757 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2758 seg->vmsize += s->size;
2759
2760 /* File offset and length. */
2761 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2762
2763 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2764 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2765 != BFD_MACH_O_S_GB_ZEROFILL))
b22161d6 2766 {
c9ffd2ea
TG		 2767 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2768
2769 s->offset = mdata->filelen;
2770 s->bfdsection->filepos = s->offset;
2771
2772 seg->filesize += s->size;
2773 mdata->filelen += s->size;
b22161d6 2774 }
c9ffd2ea 2775 else
b22161d6 2776 {
c9ffd2ea
TG		 2777 s->offset = 0;
2778 s->bfdsection->filepos = 0;
2779 }
2780
2781 /* Set protection. */
2782 if (flags & SEC_LOAD)
2783 {
2784 if (flags & SEC_CODE)
2785 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
2786 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
2787 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
b22161d6 2788 }
c9ffd2ea
TG		 2789
2790 /* Relocs shouldn't appear in non-object files. */
2791 if (s->bfdsection->reloc_count != 0)
2792 return FALSE;
b22161d6 2793 }
c9ffd2ea
TG		 2794
2795 /* Set maxprot. */
2796 if (seg->initprot != 0)
2797 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2798 | BFD_MACH_O_PROT_EXECUTE;
b22161d6 2799 else
c9ffd2ea 2800 seg->maxprot = 0;
b22161d6 2801
c9ffd2ea
TG		 2802 /* Round segment size (and file size). */
2803 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
2804 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
2805 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
7f307238 2806
c9ffd2ea
TG		 2807 return TRUE;
2808}
68ffbac6 2809
c9ffd2ea
TG		 2810/* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
2811 fields in header. */
68ffbac6 2812
c9ffd2ea
TG		 2813static void
2814bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
2815{
2816 unsigned wide = mach_o_wide_p (&mdata->header);
2817 unsigned int hdrlen;
2818 ufile_ptr offset;
2819 bfd_mach_o_load_command *cmd;
2820 unsigned int align;
2821
2822 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2823 align = wide ? 8 - 1 : 4 - 1;
2824 offset = hdrlen;
2825 mdata->header.ncmds = 0;
50d10658 2826
c9ffd2ea
TG		 2827 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
2828 {
2829 mdata->header.ncmds++;
2830 cmd->offset = offset;
68ffbac6 2831
c9ffd2ea
TG		 2832 switch (cmd->type)
2833 {
2834 case BFD_MACH_O_LC_SEGMENT_64:
2835 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2836 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
2837 break;
2838 case BFD_MACH_O_LC_SEGMENT:
2839 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2840 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
2841 break;
2842 case BFD_MACH_O_LC_SYMTAB:
2843 cmd->len = sizeof (struct mach_o_symtab_command_external)
2844 + BFD_MACH_O_LC_SIZE;
2845 break;
2846 case BFD_MACH_O_LC_DYSYMTAB:
2847 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2848 + BFD_MACH_O_LC_SIZE;
2849 break;
2850 case BFD_MACH_O_LC_LOAD_DYLIB:
2851 cmd->len = sizeof (struct mach_o_dylib_command_external)
2852 + BFD_MACH_O_LC_SIZE;
2853 cmd->command.dylib.name_offset = cmd->len;
2854 cmd->len += strlen (cmd->command.dylib.name_str);
2855 cmd->len = (cmd->len + align) & ~align;
2856 break;
2857 case BFD_MACH_O_LC_LOAD_DYLINKER:
2858 cmd->len = sizeof (struct mach_o_str_command_external)
2859 + BFD_MACH_O_LC_SIZE;
2860 cmd->command.dylinker.name_offset = cmd->len;
2861 cmd->len += strlen (cmd->command.dylinker.name_str);
2862 cmd->len = (cmd->len + align) & ~align;
2863 break;
2864 case BFD_MACH_O_LC_MAIN:
2865 cmd->len = sizeof (struct mach_o_entry_point_command_external)
2866 + BFD_MACH_O_LC_SIZE;
2867 break;
2868 case BFD_MACH_O_LC_DYLD_INFO:
2869 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
2870 + BFD_MACH_O_LC_SIZE;
2871 break;
2872 default:
2873 (*_bfd_error_handler)
2874 (_("unable to layout unknown load command 0x%lx"),
2875 (unsigned long) cmd->type);
2876 break;
7f307238 2877 }
c9ffd2ea
TG		 2878
2879 BFD_ASSERT (cmd->len % (align + 1) == 0);
2880 offset += cmd->len;
7f307238 2881 }
c9ffd2ea
TG		 2882 mdata->header.sizeofcmds = offset - hdrlen;
2883 mdata->filelen = offset;
2884}
7f307238 2885
c9ffd2ea
TG		 2886/* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
2887 segment. */
2888
2889static void
2890bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
2891 bfd_mach_o_load_command *cmd,
2892 const char *segname, unsigned int nbr_sect)
2893{
2894 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2895 unsigned wide = mach_o_wide_p (&mdata->header);
2896
2897 /* Init segment command. */
2898 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
2899 cmd->type_required = FALSE;
2900
2901 strcpy (seg->segname, segname);
2902 seg->nsects = nbr_sect;
2903
2904 seg->vmaddr = 0;
2905 seg->vmsize = 0;
2906
2907 seg->fileoff = 0;
2908 seg->filesize = 0;
2909 seg->maxprot = 0;
2910 seg->initprot = 0;
2911 seg->flags = 0;
2912 seg->sect_head = NULL;
2913 seg->sect_tail = NULL;
7f307238
IS		 2914}
2915
2916/* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2917 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2918 and copy functionality. */
154a1ee5
TG		 2919
2920bfd_boolean
2921bfd_mach_o_build_commands (bfd *abfd)
2922{
046b007d 2923 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bbd56171 2924 unsigned wide = mach_o_wide_p (&mdata->header);
c9ffd2ea
TG		 2925 unsigned int nbr_segcmd = 0;
2926 bfd_mach_o_load_command *commands;
2927 unsigned int nbr_commands;
bbd56171
IS		 2928 int symtab_idx = -1;
2929 int dysymtab_idx = -1;
c9ffd2ea
TG		 2930 int main_idx = -1;
2931 unsigned int i;
154a1ee5 2932
c9ffd2ea
TG		 2933 /* Return now if already built. */
2934 if (mdata->header.ncmds != 0)
2935 return TRUE;
154a1ee5 2936
7f307238 2937 /* Fill in the file type, if not already set. */
7f307238 2938 if (mdata->header.filetype == 0)
154a1ee5 2939 {
7f307238
IS		 2940 if (abfd->flags & EXEC_P)
2941 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2942 else if (abfd->flags & DYNAMIC)
2943 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2944 else
2945 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
154a1ee5 2946 }
7f307238
IS		 2947
2948 /* If hasn't already been done, flatten sections list, and sort
2949 if/when required. Must be done before the symbol table is adjusted,
2950 since that depends on properly numbered sections. */
2951 if (mdata->nsects == 0 || mdata->sections == NULL)
2952 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2953 return FALSE;
2954
2955 /* Order the symbol table, fill-in/check mach-o specific fields and
2956 partition out any indirect symbols. */
b22161d6 2957 if (!bfd_mach_o_mangle_symbols (abfd))
7f307238
IS		 2958 return FALSE;
2959
c9ffd2ea
TG		 2960 /* Segment commands. */
2961 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
2962 {
2963 /* Only one segment for all the sections. But the segment is
2964 optional if there is no sections. */
2965 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
2966 }
2967 else
2968 {
2969 bfd_mach_o_section *prev_sect = NULL;
bbd56171 2970
c9ffd2ea
TG		 2971 /* One pagezero segment and one linkedit segment. */
2972 nbr_segcmd = 2;
bbd56171 2973
c9ffd2ea
TG		 2974 /* Create one segment for associated segment name in sections.
2975 Assume that sections with the same segment name are consecutive. */
2976 for (i = 0; i < mdata->nsects; i++)
2977 {
2978 bfd_mach_o_section *this_sect = mdata->sections[i];
bbd56171 2979
c9ffd2ea
TG		 2980 if (prev_sect == NULL
2981 || strcmp (prev_sect->segname, this_sect->segname) != 0)
2982 {
2983 nbr_segcmd++;
2984 prev_sect = this_sect;
2985 }
2986 }
154a1ee5 2987 }
154a1ee5 2988
c9ffd2ea
TG		 2989 nbr_commands = nbr_segcmd;
2990
2991 /* One command for the symbol table (only if there are symbols. */
7f307238 2992 if (bfd_get_symcount (abfd) > 0)
c9ffd2ea 2993 symtab_idx = nbr_commands++;
c2f09c75 2994
bbd56171
IS		 2995 /* FIXME:
2996 This is a rather crude test for whether we should build a dysymtab. */
2997 if (bfd_mach_o_should_emit_dysymtab ()
2998 && bfd_get_symcount (abfd))
2999 {
bbd56171
IS		 3000 /* If there should be a case where a dysymtab could be emitted without
3001 a symtab (seems improbable), this would need amending. */
c9ffd2ea 3002 dysymtab_idx = nbr_commands++;
bbd56171 3003 }
154a1ee5 3004
c9ffd2ea
TG		 3005 /* Add an entry point command. */
3006 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3007 && bfd_get_start_address (abfd) != 0)
3008 main_idx = nbr_commands++;
c2f09c75 3009
bbd56171 3010 /* Well, we must have a header, at least. */
c9ffd2ea 3011 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
f1bde64c 3012
bbd56171 3013 /* A bit unusual, but no content is valid;
7f307238 3014 as -n empty.s -o empty.o */
c9ffd2ea
TG		 3015 if (nbr_commands == 0)
3016 {
3017 /* Layout commands (well none...) and set headers command fields. */
3018 bfd_mach_o_layout_commands (mdata);
3019 return TRUE;
3020 }
f1bde64c 3021
c9ffd2ea
TG		 3022 /* Create commands for segments (and symtabs), prepend them. */
3023 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3024 if (commands == NULL)
7f307238 3025 return FALSE;
c9ffd2ea
TG		 3026 for (i = 0; i < nbr_commands - 1; i++)
3027 commands[i].next = &commands[i + 1];
3028 commands[nbr_commands - 1].next = mdata->first_command;
3029 if (mdata->first_command == NULL)
3030 mdata->last_command = &commands[nbr_commands - 1];
3031 mdata->first_command = &commands[0];
3032
3033 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3034 {
3035 /* For object file, there is only one segment. */
3036 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3037 }
3038 else if (nbr_segcmd != 0)
68ffbac6 3039 {
c9ffd2ea 3040 bfd_mach_o_load_command *cmd;
7f307238 3041
c9ffd2ea 3042 BFD_ASSERT (nbr_segcmd >= 2);
7f307238 3043
c9ffd2ea
TG		 3044 /* The pagezero. */
3045 cmd = &commands[0];
3046 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3047
3048 /* Segments from sections. */
3049 cmd++;
3050 for (i = 0; i < mdata->nsects;)
7f307238 3051 {
c9ffd2ea
TG		 3052 const char *segname = mdata->sections[i]->segname;
3053 unsigned int nbr_sect = 1;
3054
3055 /* Count number of sections for this segment. */
3056 for (i++; i < mdata->nsects; i++)
3057 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3058 nbr_sect++;
3059 else
3060 break;
3061
3062 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3063 cmd++;
7f307238 3064 }
bbd56171 3065
c9ffd2ea
TG		 3066 /* The linkedit. */
3067 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
7f307238 3068 }
f1bde64c 3069
bbd56171 3070 if (symtab_idx >= 0)
7f307238
IS		 3071 {
3072 /* Init symtab command. */
c9ffd2ea 3073 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
68ffbac6 3074
bbd56171 3075 cmd->type = BFD_MACH_O_LC_SYMTAB;
bbd56171 3076 cmd->type_required = FALSE;
7f307238 3077 }
154a1ee5 3078
bbd56171
IS		 3079 /* If required, setup symtab command, see comment above about the quality
3080 of this test. */
3081 if (dysymtab_idx >= 0)
7f307238 3082 {
c9ffd2ea 3083 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
bbd56171 3084
7f307238 3085 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
7f307238 3086 cmd->type_required = FALSE;
c9ffd2ea
TG		 3087 }
3088
3089 /* Create the main command. */
3090 if (main_idx >= 0)
3091 {
3092 bfd_mach_o_load_command *cmd = &commands[main_idx];
7f307238 3093
c9ffd2ea
TG		 3094 cmd->type = BFD_MACH_O_LC_MAIN;
3095 cmd->type_required = TRUE;
3096
3097 cmd->command.main.entryoff = 0;
3098 cmd->command.main.stacksize = 0;
154a1ee5 3099 }
154a1ee5 3100
c9ffd2ea
TG		 3101 /* Layout commands. */
3102 bfd_mach_o_layout_commands (mdata);
3103
7f307238
IS		 3104 /* So, now we have sized the commands and the filelen set to that.
3105 Now we can build the segment command and set the section file offsets. */
c9ffd2ea
TG		 3106 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3107 {
3108 for (i = 0; i < nbr_segcmd; i++)
3109 if (!bfd_mach_o_build_obj_seg_command
3110 (abfd, &commands[i].command.segment))
3111 return FALSE;
3112 }
3113 else
3114 {
3115 bfd_vma maxvma = 0;
7f307238 3116
c9ffd2ea
TG		 3117 /* Skip pagezero and linkedit segments. */
3118 for (i = 1; i < nbr_segcmd - 1; i++)
3119 {
3120 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3121
3122 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3123 return FALSE;
3124
3125 if (seg->vmaddr + seg->vmsize > maxvma)
3126 maxvma = seg->vmaddr + seg->vmsize;
3127 }
3128
3129 /* Set the size of __PAGEZERO. */
3130 commands[0].command.segment.vmsize =
3131 commands[1].command.segment.vmaddr;
3132
3133 /* Set the vma and fileoff of __LINKEDIT. */
3134 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3135 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3136
3137 /* Set entry point (once segments have been laid out). */
3138 if (main_idx >= 0)
3139 commands[main_idx].command.main.entryoff =
3140 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3141 }
7f307238 3142
154a1ee5
TG		 3143 return TRUE;
3144}
3145
3146/* Set the contents of a section. */
3147
3148bfd_boolean
3149bfd_mach_o_set_section_contents (bfd *abfd,
3150 asection *section,
3151 const void * location,
3152 file_ptr offset,
3153 bfd_size_type count)
3154{
3155 file_ptr pos;
3156
7f307238
IS		 3157 /* Trying to write the first section contents will trigger the creation of
3158 the load commands if they are not already present. */
c9ffd2ea 3159 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
154a1ee5
TG		 3160 return FALSE;
3161
3162 if (count == 0)
3163 return TRUE;
3164
3165 pos = section->filepos + offset;
3166 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3167 || bfd_bwrite (location, count, abfd) != count)
3168 return FALSE;
3169
3170 return TRUE;
3171}
3172
3173int
116c20d2 3174bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
a6b96beb 3175 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3af9a47b
NC		 3176{
3177 return 0;
3178}
3179
3180/* Make an empty symbol. This is required only because
3181 bfd_make_section_anyway wants to create a symbol for the section. */
3182
154a1ee5 3183asymbol *
116c20d2 3184bfd_mach_o_make_empty_symbol (bfd *abfd)
3af9a47b 3185{
d3ce72d0
NC		 3186 asymbol *new_symbol;
3187
3188 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3189 if (new_symbol == NULL)
3190 return new_symbol;
3191 new_symbol->the_bfd = abfd;
b22161d6 3192 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
d3ce72d0 3193 return new_symbol;
3af9a47b
NC		 3194}
3195
154a1ee5 3196static bfd_boolean
116c20d2 3197bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
3af9a47b 3198{
46d1c23b 3199 struct mach_o_header_external raw;
1e8a024a 3200 unsigned int size;
edeb6e24 3201 bfd_vma (*get32) (const void *) = NULL;
3af9a47b 3202
1e8a024a 3203 /* Just read the magic number. */
c2f09c75 3204 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 3205 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
154a1ee5 3206 return FALSE;
3af9a47b 3207
46d1c23b 3208 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b
NC		 3209 {
3210 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 3211 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a 3212 header->version = 1;
3af9a47b
NC		 3213 get32 = bfd_getb32;
3214 }
46d1c23b 3215 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b 3216 {
a95a4550 3217 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 3218 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a
TG		 3219 header->version = 1;
3220 get32 = bfd_getl32;
3221 }
46d1c23b 3222 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 3223 {
3224 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 3225 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a
TG		 3226 header->version = 2;
3227 get32 = bfd_getb32;
3228 }
46d1c23b 3229 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 3230 {
3231 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 3232 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a 3233 header->version = 2;
3af9a47b
NC		 3234 get32 = bfd_getl32;
3235 }
3236 else
3237 {
3238 header->byteorder = BFD_ENDIAN_UNKNOWN;
154a1ee5 3239 return FALSE;
3af9a47b 3240 }
a95a4550 3241
1e8a024a 3242 /* Once the size of the header is known, read the full header. */
c2f09c75 3243 size = mach_o_wide_p (header) ?
154a1ee5 3244 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1e8a024a 3245
c2f09c75 3246 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 3247 || bfd_bread (&raw, size, abfd) != size)
154a1ee5 3248 return FALSE;
1e8a024a 3249
46d1c23b
TG		 3250 header->cputype = (*get32) (raw.cputype);
3251 header->cpusubtype = (*get32) (raw.cpusubtype);
3252 header->filetype = (*get32) (raw.filetype);
3253 header->ncmds = (*get32) (raw.ncmds);
3254 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3255 header->flags = (*get32) (raw.flags);
3af9a47b 3256
c2f09c75 3257 if (mach_o_wide_p (header))
46d1c23b 3258 header->reserved = (*get32) (raw.reserved);
facf03f2
TG		 3259 else
3260 header->reserved = 0;
1e8a024a 3261
154a1ee5 3262 return TRUE;
3af9a47b
NC		 3263}
3264
f1bde64c
TG		 3265bfd_boolean
3266bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3267{
3268 bfd_mach_o_section *s;
a4551119 3269 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
f1bde64c
TG		 3270
3271 s = bfd_mach_o_get_mach_o_section (sec);
3272 if (s == NULL)
3273 {
3274 flagword bfd_flags;
a4551119 3275 static const mach_o_section_name_xlat * xlat;
f1bde64c
TG		 3276
3277 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3278 if (s == NULL)
3279 return FALSE;
3280 sec->used_by_bfd = s;
3281 s->bfdsection = sec;
3282
a4551119
TG		 3283 /* Create the Darwin seg/sect name pair from the bfd name.
3284 If this is a canonical name for which a specific paiting exists
3285 there will also be defined flags, type, attribute and alignment
3286 values. */
3287 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3288 if (xlat != NULL)
3289 {
3290 s->flags = xlat->macho_sectype | xlat->macho_secattr;
68ffbac6 3291 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
a4551119 3292 : bfdalign;
a253d456 3293 (void) bfd_set_section_alignment (abfd, sec, s->align);
a4551119
TG		 3294 bfd_flags = bfd_get_section_flags (abfd, sec);
3295 if (bfd_flags == SEC_NO_FLAGS)
3296 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3297 }
f1bde64c 3298 else
a4551119
TG		 3299 /* Create default flags. */
3300 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
f1bde64c
TG		 3301 }
3302
3303 return _bfd_generic_new_section_hook (abfd, sec);
3304}
3305
3306static void
3307bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3308 unsigned long prot)
3af9a47b 3309{
117ed4f8 3310 flagword flags;
f1bde64c 3311 bfd_mach_o_section *section;
3af9a47b 3312
f1bde64c
TG		 3313 flags = bfd_get_section_flags (abfd, sec);
3314 section = bfd_mach_o_get_mach_o_section (sec);
3af9a47b 3315
a4551119
TG		 3316 /* TODO: see if we should use the xlat system for doing this by
3317 preference and fall back to this for unknown sections. */
3318
8462aec7 3319 if (flags == SEC_NO_FLAGS)
ef17cb22 3320 {
8462aec7
TG		 3321 /* Try to guess flags. */
3322 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3323 flags = SEC_DEBUGGING;
3324 else
3325 {
3326 flags = SEC_ALLOC;
3327 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3328 != BFD_MACH_O_S_ZEROFILL)
3329 {
3330 flags |= SEC_LOAD;
3331 if (prot & BFD_MACH_O_PROT_EXECUTE)
3332 flags |= SEC_CODE;
3333 if (prot & BFD_MACH_O_PROT_WRITE)
3334 flags |= SEC_DATA;
3335 else if (prot & BFD_MACH_O_PROT_READ)
3336 flags |= SEC_READONLY;
3337 }
3338 }
ef17cb22 3339 }
15e1c58a
TG		 3340 else
3341 {
8462aec7
TG		 3342 if ((flags & SEC_DEBUGGING) == 0)
3343 flags |= SEC_ALLOC;
15e1c58a 3344 }
8462aec7
TG		 3345
3346 if (section->offset != 0)
3347 flags |= SEC_HAS_CONTENTS;
92bc0e80
TG		 3348 if (section->nreloc != 0)
3349 flags |= SEC_RELOC;
3350
f1bde64c
TG		 3351 bfd_set_section_flags (abfd, sec, flags);
3352
3353 sec->vma = section->addr;
3354 sec->lma = section->addr;
3355 sec->size = section->size;
3356 sec->filepos = section->offset;
3357 sec->alignment_power = section->align;
3358 sec->segment_mark = 0;
3359 sec->reloc_count = section->nreloc;
3360 sec->rel_filepos = section->reloff;
3361}
3362
3363static asection *
3364bfd_mach_o_make_bfd_section (bfd *abfd,
3365 const unsigned char *segname,
3366 const unsigned char *sectname)
3367{
3368 const char *sname;
3369 flagword flags;
a95a4550 3370
f1bde64c
TG		 3371 bfd_mach_o_convert_section_name_to_bfd
3372 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3373 if (sname == NULL)
3374 return NULL;
3af9a47b 3375
f1bde64c 3376 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3af9a47b
NC		 3377}
3378
f1bde64c 3379static asection *
ab273af8 3380bfd_mach_o_read_section_32 (bfd *abfd,
ab273af8
TG		 3381 unsigned int offset,
3382 unsigned long prot)
3af9a47b 3383{
46d1c23b 3384 struct mach_o_section_32_external raw;
f1bde64c
TG		 3385 asection *sec;
3386 bfd_mach_o_section *section;
3af9a47b 3387
c2f09c75 3388 if (bfd_seek (abfd, offset, SEEK_SET) != 0
46d1c23b 3389 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
c2f09c75 3390 != BFD_MACH_O_SECTION_SIZE))
f1bde64c 3391 return NULL;
a95a4550 3392
5a5cbf72 3393 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 3394 if (sec == NULL)
3395 return NULL;
3396
3397 section = bfd_mach_o_get_mach_o_section (sec);
3398 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3399 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3400 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 3401 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 3402 section->addr = bfd_h_get_32 (abfd, raw.addr);
3403 section->size = bfd_h_get_32 (abfd, raw.size);
3404 section->offset = bfd_h_get_32 (abfd, raw.offset);
3405 section->align = bfd_h_get_32 (abfd, raw.align);
3406 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3407 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3408 section->flags = bfd_h_get_32 (abfd, raw.flags);
3409 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3410 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
1e8a024a 3411 section->reserved3 = 0;
1e8a024a 3412
f1bde64c 3413 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
1e8a024a 3414
f1bde64c 3415 return sec;
1e8a024a
TG		 3416}
3417
f1bde64c 3418static asection *
ab273af8 3419bfd_mach_o_read_section_64 (bfd *abfd,
ab273af8
TG		 3420 unsigned int offset,
3421 unsigned long prot)
1e8a024a 3422{
46d1c23b 3423 struct mach_o_section_64_external raw;
f1bde64c
TG		 3424 asection *sec;
3425 bfd_mach_o_section *section;
1e8a024a 3426
c2f09c75 3427 if (bfd_seek (abfd, offset, SEEK_SET) != 0
46d1c23b 3428 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
c2f09c75 3429 != BFD_MACH_O_SECTION_64_SIZE))
f1bde64c
TG		 3430 return NULL;
3431
5a5cbf72 3432 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 3433 if (sec == NULL)
3434 return NULL;
1e8a024a 3435
f1bde64c
TG		 3436 section = bfd_mach_o_get_mach_o_section (sec);
3437 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3438 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3439 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 3440 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 3441 section->addr = bfd_h_get_64 (abfd, raw.addr);
3442 section->size = bfd_h_get_64 (abfd, raw.size);
3443 section->offset = bfd_h_get_32 (abfd, raw.offset);
3444 section->align = bfd_h_get_32 (abfd, raw.align);
3445 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3446 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3447 section->flags = bfd_h_get_32 (abfd, raw.flags);
3448 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3449 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3450 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3af9a47b 3451
f1bde64c 3452 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3af9a47b 3453
f1bde64c 3454 return sec;
3af9a47b
NC		 3455}
3456
f1bde64c 3457static asection *
ab273af8 3458bfd_mach_o_read_section (bfd *abfd,
ab273af8
TG		 3459 unsigned int offset,
3460 unsigned long prot,
3461 unsigned int wide)
1e8a024a
TG		 3462{
3463 if (wide)
f1bde64c 3464 return bfd_mach_o_read_section_64 (abfd, offset, prot);
1e8a024a 3465 else
f1bde64c 3466 return bfd_mach_o_read_section_32 (abfd, offset, prot);
1e8a024a
TG		 3467}
3468
afbb9e17 3469static bfd_boolean
ab273af8
TG		 3470bfd_mach_o_read_symtab_symbol (bfd *abfd,
3471 bfd_mach_o_symtab_command *sym,
3472 bfd_mach_o_asymbol *s,
3473 unsigned long i)
3af9a47b 3474{
046b007d 3475 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c2f09c75 3476 unsigned int wide = mach_o_wide_p (&mdata->header);
046b007d
TG		 3477 unsigned int symwidth =
3478 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
92bc0e80 3479 unsigned int symoff = sym->symoff + (i * symwidth);
46d1c23b 3480 struct mach_o_nlist_64_external raw;
3af9a47b
NC		 3481 unsigned char type = -1;
3482 unsigned char section = -1;
3483 short desc = -1;
1e8a024a 3484 symvalue value = -1;
3af9a47b
NC		 3485 unsigned long stroff = -1;
3486 unsigned int symtype = -1;
3487
3488 BFD_ASSERT (sym->strtab != NULL);
3489
c2f09c75 3490 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
46d1c23b 3491 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3af9a47b 3492 {
46d1c23b
TG		 3493 (*_bfd_error_handler)
3494 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
3495 symwidth, (unsigned long) symoff);
afbb9e17 3496 return FALSE;
3af9a47b
NC		 3497 }
3498
46d1c23b
TG		 3499 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3500 type = bfd_h_get_8 (abfd, raw.n_type);
c2f09c75 3501 symtype = type & BFD_MACH_O_N_TYPE;
46d1c23b
TG		 3502 section = bfd_h_get_8 (abfd, raw.n_sect);
3503 desc = bfd_h_get_16 (abfd, raw.n_desc);
1e8a024a 3504 if (wide)
46d1c23b 3505 value = bfd_h_get_64 (abfd, raw.n_value);
1e8a024a 3506 else
46d1c23b 3507 value = bfd_h_get_32 (abfd, raw.n_value);
3af9a47b
NC		 3508
3509 if (stroff >= sym->strsize)
3510 {
46d1c23b
TG		 3511 (*_bfd_error_handler)
3512 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
3513 (unsigned long) stroff,
3514 (unsigned long) sym->strsize);
afbb9e17 3515 return FALSE;
3af9a47b
NC		 3516 }
3517
92bc0e80
TG		 3518 s->symbol.the_bfd = abfd;
3519 s->symbol.name = sym->strtab + stroff;
3520 s->symbol.value = value;
3521 s->symbol.flags = 0x0;
b22161d6 3522 s->symbol.udata.i = i;
92bc0e80
TG		 3523 s->n_type = type;
3524 s->n_sect = section;
3525 s->n_desc = desc;
3af9a47b
NC		 3526
3527 if (type & BFD_MACH_O_N_STAB)
3528 {
92bc0e80
TG		 3529 s->symbol.flags |= BSF_DEBUGGING;
3530 s->symbol.section = bfd_und_section_ptr;
15e1c58a
TG		 3531 switch (type)
3532 {
3533 case N_FUN:
3534 case N_STSYM:
3535 case N_LCSYM:
3536 case N_BNSYM:
3537 case N_SLINE:
3538 case N_ENSYM:
3539 case N_ECOMM:
3540 case N_ECOML:
3541 case N_GSYM:
3542 if ((section > 0) && (section <= mdata->nsects))
3543 {
92bc0e80
TG		 3544 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3545 s->symbol.value =
3546 s->symbol.value - mdata->sections[section - 1]->addr;
15e1c58a
TG		 3547 }
3548 break;
3549 }
3af9a47b
NC		 3550 }
3551 else
3552 {
b22161d6 3553 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
92bc0e80 3554 s->symbol.flags |= BSF_GLOBAL;
b22161d6 3555 else
92bc0e80 3556 s->symbol.flags |= BSF_LOCAL;
3af9a47b
NC		 3557
3558 switch (symtype)
3559 {
3560 case BFD_MACH_O_N_UNDF:
c2f09c75 3561 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
92bc0e80 3562 && s->symbol.value != 0)
c2f09c75
TG		 3563 {
3564 /* A common symbol. */
92bc0e80
TG		 3565 s->symbol.section = bfd_com_section_ptr;
3566 s->symbol.flags = BSF_NO_FLAGS;
c2f09c75
TG		 3567 }
3568 else
92bc0e80
TG		 3569 {
3570 s->symbol.section = bfd_und_section_ptr;
3571 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3572 s->symbol.flags |= BSF_WEAK;
3573 }
3af9a47b
NC		 3574 break;
3575 case BFD_MACH_O_N_PBUD:
92bc0e80 3576 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3577 break;
3578 case BFD_MACH_O_N_ABS:
92bc0e80 3579 s->symbol.section = bfd_abs_section_ptr;
3af9a47b
NC		 3580 break;
3581 case BFD_MACH_O_N_SECT:
3582 if ((section > 0) && (section <= mdata->nsects))
3583 {
92bc0e80
TG		 3584 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3585 s->symbol.value =
3586 s->symbol.value - mdata->sections[section - 1]->addr;
3af9a47b
NC		 3587 }
3588 else
3589 {
3590 /* Mach-O uses 0 to mean "no section"; not an error. */
3591 if (section != 0)
3592 {
4a97a0e5
AM		 3593 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3594 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
3595 s->symbol.name, section, mdata->nsects);
3af9a47b 3596 }
92bc0e80 3597 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3598 }
3599 break;
3600 case BFD_MACH_O_N_INDR:
0596a831
TG		 3601 /* FIXME: we don't follow the BFD convention as this indirect symbol
3602 won't be followed by the referenced one. This looks harmless
3603 unless we start using the linker. */
3604 s->symbol.flags |= BSF_INDIRECT;
3605 s->symbol.section = bfd_ind_section_ptr;
3606 s->symbol.value = 0;
3af9a47b
NC		 3607 break;
3608 default:
4a97a0e5
AM		 3609 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3610 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
3611 s->symbol.name, symtype);
92bc0e80 3612 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3613 break;
3614 }
3615 }
3616
afbb9e17 3617 return TRUE;
3af9a47b
NC		 3618}
3619
c5012cd8 3620bfd_boolean
ab273af8 3621bfd_mach_o_read_symtab_strtab (bfd *abfd)
3af9a47b 3622{
046b007d
TG		 3623 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3624 bfd_mach_o_symtab_command *sym = mdata->symtab;
3625
3626 /* Fail if there is no symtab. */
3627 if (sym == NULL)
afbb9e17 3628 return FALSE;
046b007d
TG		 3629
3630 /* Success if already loaded. */
3631 if (sym->strtab)
afbb9e17 3632 return TRUE;
3af9a47b
NC		 3633
3634 if (abfd->flags & BFD_IN_MEMORY)
3635 {
3636 struct bfd_in_memory *b;
3637
3638 b = (struct bfd_in_memory *) abfd->iostream;
3639
3640 if ((sym->stroff + sym->strsize) > b->size)
3641 {
3642 bfd_set_error (bfd_error_file_truncated);
afbb9e17 3643 return FALSE;
3af9a47b 3644 }
f075ee0c 3645 sym->strtab = (char *) b->buffer + sym->stroff;
3af9a47b 3646 }
046b007d 3647 else
3af9a47b 3648 {
046b007d
TG		 3649 sym->strtab = bfd_alloc (abfd, sym->strsize);
3650 if (sym->strtab == NULL)
afbb9e17 3651 return FALSE;
046b007d
TG		 3652
3653 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
afbb9e17 3654 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
046b007d 3655 {
a1165289
NC		 3656 /* PR 17512: file: 10888-1609-0.004. */
3657 bfd_release (abfd, sym->strtab);
3658 sym->strtab = NULL;
046b007d 3659 bfd_set_error (bfd_error_file_truncated);
afbb9e17 3660 return FALSE;
046b007d 3661 }
3af9a47b
NC		 3662 }
3663
afbb9e17 3664 return TRUE;
3af9a47b
NC		 3665}
3666
c5012cd8 3667bfd_boolean
ab273af8 3668bfd_mach_o_read_symtab_symbols (bfd *abfd)
3af9a47b 3669{
046b007d
TG		 3670 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3671 bfd_mach_o_symtab_command *sym = mdata->symtab;
3af9a47b 3672 unsigned long i;
3af9a47b 3673
092d27ff 3674 if (sym == NULL || sym->symbols)
0a9d414a
NC		 3675 /* Return now if there are no symbols or if already loaded. */
3676 return TRUE;
046b007d 3677
92bc0e80 3678 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
3af9a47b
NC		 3679
3680 if (sym->symbols == NULL)
3681 {
4a97a0e5 3682 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
afbb9e17 3683 return FALSE;
3af9a47b 3684 }
a95a4550 3685
afbb9e17 3686 if (!bfd_mach_o_read_symtab_strtab (abfd))
0a9d414a 3687 {
a1165289 3688 bfd_release (abfd, sym->symbols);
0a9d414a
NC		 3689 sym->symbols = NULL;
3690 return FALSE;
3691 }
3af9a47b
NC		 3692
3693 for (i = 0; i < sym->nsyms; i++)
3694 {
afbb9e17 3695 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
0a9d414a 3696 {
a1165289 3697 bfd_release (abfd, sym->symbols);
0a9d414a
NC		 3698 sym->symbols = NULL;
3699 return FALSE;
3700 }
3af9a47b 3701 }
a95a4550 3702
afbb9e17 3703 return TRUE;
3af9a47b
NC		 3704}
3705
3706static const char *
116c20d2 3707bfd_mach_o_i386_flavour_string (unsigned int flavour)
3af9a47b
NC		 3708{
3709 switch ((int) flavour)
3710 {
15e1c58a
TG		 3711 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3712 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3713 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3714 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3715 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3716 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3717 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3718 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3719 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3720 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3721 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3722 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
b32e07d7 3723 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3af9a47b
NC		 3724 default: return "UNKNOWN";
3725 }
3726}
3727
3728static const char *
116c20d2 3729bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3af9a47b
NC		 3730{
3731 switch ((int) flavour)
3732 {
b32e07d7
TG		 3733 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3734 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3735 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3736 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3737 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3738 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3af9a47b
NC		 3739 default: return "UNKNOWN";
3740 }
3741}
3742
452216ab 3743static bfd_boolean
ab273af8 3744bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 3745{
3746 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
46d1c23b 3747 struct mach_o_str_command_external raw;
3af9a47b 3748 unsigned int nameoff;
4525c51a 3749 unsigned int namelen;
3af9a47b 3750
46d1c23b
TG		 3751 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3752 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3753 return FALSE;
3af9a47b 3754
46d1c23b 3755 nameoff = bfd_h_get_32 (abfd, raw.str);
3af9a47b 3756
4525c51a
TG		 3757 cmd->name_offset = nameoff;
3758 namelen = command->len - nameoff;
3759 nameoff += command->offset;
3760 cmd->name_str = bfd_alloc (abfd, namelen);
b32e07d7 3761 if (cmd->name_str == NULL)
452216ab 3762 return FALSE;
4525c51a
TG		 3763 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3764 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
452216ab
TG		 3765 return FALSE;
3766 return TRUE;
3af9a47b
NC		 3767}
3768
452216ab 3769static bfd_boolean
ab273af8 3770bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 3771{
3772 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
46d1c23b 3773 struct mach_o_dylib_command_external raw;
3af9a47b 3774 unsigned int nameoff;
4525c51a 3775 unsigned int namelen;
3af9a47b 3776
046b007d
TG		 3777 switch (command->type)
3778 {
3779 case BFD_MACH_O_LC_LOAD_DYLIB:
fbe383b9 3780 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
046b007d 3781 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 3782 case BFD_MACH_O_LC_ID_DYLIB:
046b007d 3783 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 3784 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
046b007d
TG		 3785 break;
3786 default:
b32e07d7 3787 BFD_FAIL ();
452216ab 3788 return FALSE;
046b007d 3789 }
3af9a47b 3790
46d1c23b
TG		 3791 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3792 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3793 return FALSE;
3af9a47b 3794
46d1c23b
TG		 3795 nameoff = bfd_h_get_32 (abfd, raw.name);
3796 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3797 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3798 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3af9a47b
NC		 3799
3800 cmd->name_offset = command->offset + nameoff;
4525c51a
TG		 3801 namelen = command->len - nameoff;
3802 cmd->name_str = bfd_alloc (abfd, namelen);
b32e07d7 3803 if (cmd->name_str == NULL)
452216ab 3804 return FALSE;
b32e07d7 3805 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
4525c51a 3806 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
452216ab
TG		 3807 return FALSE;
3808 return TRUE;
3af9a47b
NC		 3809}
3810
452216ab 3811static bfd_boolean
7a79c514
TG		 3812bfd_mach_o_read_prebound_dylib (bfd *abfd,
3813 bfd_mach_o_load_command *command)
3af9a47b 3814{
7a79c514
TG		 3815 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
3816 struct mach_o_prebound_dylib_command_external raw;
3817 unsigned int nameoff;
3818 unsigned int modoff;
3819 unsigned int str_len;
3820 unsigned char *str;
3821
3822 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3823 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3824 return FALSE;
7a79c514
TG		 3825
3826 nameoff = bfd_h_get_32 (abfd, raw.name);
3827 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
3828 if (nameoff > command->len || modoff > command->len)
452216ab 3829 return FALSE;
7a79c514
TG		 3830
3831 str_len = command->len - sizeof (raw);
3832 str = bfd_alloc (abfd, str_len);
3833 if (str == NULL)
452216ab 3834 return FALSE;
7a79c514 3835 if (bfd_bread (str, str_len, abfd) != str_len)
452216ab 3836 return FALSE;
7a79c514
TG		 3837
3838 cmd->name_offset = command->offset + nameoff;
3839 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
3840 cmd->linked_modules_offset = command->offset + modoff;
3841
3842 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3843 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
452216ab 3844 return TRUE;
7a79c514
TG		 3845}
3846
452216ab 3847static bfd_boolean
7a79c514
TG		 3848bfd_mach_o_read_prebind_cksum (bfd *abfd,
3849 bfd_mach_o_load_command *command)
3850{
3851 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
3852 struct mach_o_prebind_cksum_command_external raw;
3af9a47b 3853
7a79c514
TG		 3854 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3855 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3856 return FALSE;
7a79c514
TG		 3857
3858 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
452216ab 3859 return TRUE;
7a79c514
TG		 3860}
3861
452216ab 3862static bfd_boolean
7a79c514
TG		 3863bfd_mach_o_read_twolevel_hints (bfd *abfd,
3864 bfd_mach_o_load_command *command)
3865{
3866 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
3867 struct mach_o_twolevel_hints_command_external raw;
3868
3869 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3870 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3871 return FALSE;
7a79c514
TG		 3872
3873 cmd->offset = bfd_get_32 (abfd, raw.offset);
3874 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
452216ab 3875 return TRUE;
3af9a47b
NC		 3876}
3877
452216ab 3878static bfd_boolean
9f4a5bd1
TG		 3879bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3880{
3881 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3882 struct mach_o_fvmlib_command_external raw;
3883 unsigned int nameoff;
4525c51a 3884 unsigned int namelen;
9f4a5bd1
TG		 3885
3886 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3887 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3888 return FALSE;
9f4a5bd1
TG		 3889
3890 nameoff = bfd_h_get_32 (abfd, raw.name);
3891 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3892 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3893
3894 fvm->name_offset = command->offset + nameoff;
4525c51a
TG		 3895 namelen = command->len - nameoff;
3896 fvm->name_str = bfd_alloc (abfd, namelen);
9f4a5bd1 3897 if (fvm->name_str == NULL)
452216ab 3898 return FALSE;
9f4a5bd1 3899 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
4525c51a 3900 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
452216ab
TG		 3901 return FALSE;
3902 return TRUE;
9f4a5bd1
TG		 3903}
3904
452216ab 3905static bfd_boolean
ab273af8 3906bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3907{
b32e07d7 3908 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 3909 bfd_mach_o_thread_command *cmd = &command->command.thread;
92bc0e80 3910 unsigned int offset;
3af9a47b
NC		 3911 unsigned int nflavours;
3912 unsigned int i;
3913
3914 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3915 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3916
b32e07d7 3917 /* Count the number of threads. */
3af9a47b
NC		 3918 offset = 8;
3919 nflavours = 0;
3920 while (offset != command->len)
3921 {
46d1c23b
TG		 3922 struct mach_o_thread_command_external raw;
3923
3af9a47b 3924 if (offset >= command->len)
452216ab 3925 return FALSE;
3af9a47b 3926
c2f09c75 3927 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 3928 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3929 return FALSE;
3af9a47b 3930
46d1c23b 3931 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3af9a47b
NC		 3932 nflavours++;
3933 }
3934
b32e07d7
TG		 3935 /* Allocate threads. */
3936 cmd->flavours = bfd_alloc
3937 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3af9a47b 3938 if (cmd->flavours == NULL)
452216ab 3939 return FALSE;
3af9a47b
NC		 3940 cmd->nflavours = nflavours;
3941
3942 offset = 8;
3943 nflavours = 0;
3944 while (offset != command->len)
3945 {
46d1c23b
TG		 3946 struct mach_o_thread_command_external raw;
3947
3af9a47b 3948 if (offset >= command->len)
452216ab 3949 return FALSE;
3af9a47b
NC		 3950
3951 if (nflavours >= cmd->nflavours)
452216ab 3952 return FALSE;
3af9a47b 3953
c2f09c75 3954 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 3955 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3956 return FALSE;
3af9a47b 3957
46d1c23b
TG		 3958 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3959 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3960 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3961 offset += cmd->flavours[nflavours].size + sizeof (raw);
3af9a47b
NC		 3962 nflavours++;
3963 }
3964
3965 for (i = 0; i < nflavours; i++)
3966 {
3967 asection *bfdsec;
3968 unsigned int snamelen;
3969 char *sname;
3970 const char *flavourstr;
3971 const char *prefix = "LC_THREAD";
a95a4550
AM		 3972 unsigned int j = 0;
3973
3af9a47b
NC		 3974 switch (mdata->header.cputype)
3975 {
3976 case BFD_MACH_O_CPU_TYPE_POWERPC:
1e8a024a 3977 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
707e555b
TG		 3978 flavourstr =
3979 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3af9a47b
NC		 3980 break;
3981 case BFD_MACH_O_CPU_TYPE_I386:
1e8a024a 3982 case BFD_MACH_O_CPU_TYPE_X86_64:
707e555b
TG		 3983 flavourstr =
3984 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3af9a47b
NC		 3985 break;
3986 default:
3987 flavourstr = "UNKNOWN_ARCHITECTURE";
3988 break;
3989 }
a95a4550 3990
3af9a47b 3991 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
116c20d2 3992 sname = bfd_alloc (abfd, snamelen);
3af9a47b 3993 if (sname == NULL)
452216ab 3994 return FALSE;
3af9a47b
NC		 3995
3996 for (;;)
3997 {
a95a4550
AM		 3998 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
3999 if (bfd_get_section_by_name (abfd, sname) == NULL)
3af9a47b 4000 break;
a95a4550 4001 j++;
3af9a47b
NC		 4002 }
4003
117ed4f8 4004 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
a95a4550 4005
3af9a47b
NC		 4006 bfdsec->vma = 0;
4007 bfdsec->lma = 0;
eea6121a 4008 bfdsec->size = cmd->flavours[i].size;
3af9a47b
NC		 4009 bfdsec->filepos = cmd->flavours[i].offset;
4010 bfdsec->alignment_power = 0x0;
3af9a47b
NC		 4011
4012 cmd->section = bfdsec;
4013 }
4014
452216ab 4015 return TRUE;
3af9a47b
NC		 4016}
4017
452216ab 4018static bfd_boolean
ab273af8 4019bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4020{
046b007d 4021 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
b32e07d7 4022 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 4023
4024 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4025
46d1c23b
TG		 4026 {
4027 struct mach_o_dysymtab_command_external raw;
4028
4029 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4030 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4031 return FALSE;
3af9a47b 4032
46d1c23b
TG		 4033 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4034 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4035 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4036 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4037 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4038 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4039 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4040 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4041 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4042 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4043 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4044 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4045 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4046 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4047 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4048 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4049 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4050 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4051 }
046b007d
TG		 4052
4053 if (cmd->nmodtab != 0)
4054 {
046b007d
TG		 4055 unsigned int i;
4056 int wide = bfd_mach_o_wide_p (abfd);
4057 unsigned int module_len = wide ? 56 : 52;
4058
4059 cmd->dylib_module =
4060 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
4061 if (cmd->dylib_module == NULL)
452216ab 4062 return FALSE;
046b007d
TG		 4063
4064 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
452216ab 4065 return FALSE;
046b007d
TG		 4066
4067 for (i = 0; i < cmd->nmodtab; i++)
4068 {
4069 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4070 unsigned long v;
46d1c23b 4071 unsigned char buf[56];
046b007d 4072
91d6fa6a 4073 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
452216ab 4074 return FALSE;
046b007d
TG		 4075
4076 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4077 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4078 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4079 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4080 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4081 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4082 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4083 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4084 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4085 v = bfd_h_get_32 (abfd, buf +36);
4086 module->iinit = v & 0xffff;
4087 module->iterm = (v >> 16) & 0xffff;
4088 v = bfd_h_get_32 (abfd, buf + 40);
4089 module->ninit = v & 0xffff;
4090 module->nterm = (v >> 16) & 0xffff;
4091 if (wide)
4092 {
4093 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4094 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4095 }
4096 else
4097 {
4098 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4099 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4100 }
4101 }
4102 }
afbb9e17 4103
046b007d
TG		 4104 if (cmd->ntoc != 0)
4105 {
046b007d
TG		 4106 unsigned int i;
4107
4108 cmd->dylib_toc = bfd_alloc
4109 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
4110 if (cmd->dylib_toc == NULL)
452216ab 4111 return FALSE;
046b007d
TG		 4112
4113 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
452216ab 4114 return FALSE;
046b007d
TG		 4115
4116 for (i = 0; i < cmd->ntoc; i++)
4117 {
46d1c23b 4118 struct mach_o_dylib_table_of_contents_external raw;
046b007d
TG		 4119 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4120
46d1c23b 4121 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4122 return FALSE;
046b007d 4123
46d1c23b
TG		 4124 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4125 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
046b007d
TG		 4126 }
4127 }
4128
4129 if (cmd->nindirectsyms != 0)
4130 {
046b007d
TG		 4131 unsigned int i;
4132
4133 cmd->indirect_syms = bfd_alloc
4134 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
4135 if (cmd->indirect_syms == NULL)
452216ab 4136 return FALSE;
046b007d
TG		 4137
4138 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
452216ab 4139 return FALSE;
046b007d
TG		 4140
4141 for (i = 0; i < cmd->nindirectsyms; i++)
4142 {
46d1c23b 4143 unsigned char raw[4];
046b007d
TG		 4144 unsigned int *is = &cmd->indirect_syms[i];
4145
46d1c23b 4146 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4147 return FALSE;
046b007d 4148
46d1c23b 4149 *is = bfd_h_get_32 (abfd, raw);
046b007d
TG		 4150 }
4151 }
4152
4153 if (cmd->nextrefsyms != 0)
4154 {
046b007d
TG		 4155 unsigned long v;
4156 unsigned int i;
4157
4158 cmd->ext_refs = bfd_alloc
4159 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
4160 if (cmd->ext_refs == NULL)
452216ab 4161 return FALSE;
046b007d
TG		 4162
4163 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
452216ab 4164 return FALSE;
046b007d
TG		 4165
4166 for (i = 0; i < cmd->nextrefsyms; i++)
4167 {
46d1c23b 4168 unsigned char raw[4];
046b007d
TG		 4169 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4170
46d1c23b 4171 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4172 return FALSE;
046b007d 4173
b32e07d7
TG		 4174 /* Fields isym and flags are written as bit-fields, thus we need
4175 a specific processing for endianness. */
46d1c23b 4176 v = bfd_h_get_32 (abfd, raw);
b32e07d7
TG		 4177 if (bfd_big_endian (abfd))
4178 {
4179 ref->isym = (v >> 8) & 0xffffff;
4180 ref->flags = v & 0xff;
4181 }
4182 else
4183 {
4184 ref->isym = v & 0xffffff;
4185 ref->flags = (v >> 24) & 0xff;
4186 }
046b007d
TG		 4187 }
4188 }
3af9a47b 4189
b32e07d7 4190 if (mdata->dysymtab)
452216ab 4191 return FALSE;
b32e07d7
TG		 4192 mdata->dysymtab = cmd;
4193
452216ab 4194 return TRUE;
3af9a47b
NC		 4195}
4196
452216ab 4197static bfd_boolean
ab273af8 4198bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4199{
046b007d
TG		 4200 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4201 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
46d1c23b 4202 struct mach_o_symtab_command_external raw;
3af9a47b
NC		 4203
4204 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4205
46d1c23b
TG		 4206 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4207 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4208 return FALSE;
a95a4550 4209
46d1c23b
TG		 4210 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4211 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4212 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4213 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
046b007d
TG		 4214 symtab->symbols = NULL;
4215 symtab->strtab = NULL;
3af9a47b 4216
046b007d 4217 if (symtab->nsyms != 0)
15e1c58a
TG		 4218 abfd->flags |= HAS_SYMS;
4219
046b007d 4220 if (mdata->symtab)
452216ab 4221 return FALSE;
046b007d 4222 mdata->symtab = symtab;
452216ab 4223 return TRUE;
3af9a47b
NC		 4224}
4225
452216ab 4226static bfd_boolean
ab273af8 4227bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
15e1c58a
TG		 4228{
4229 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
15e1c58a
TG		 4230
4231 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4232
46d1c23b
TG		 4233 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4234 || bfd_bread (cmd->uuid, 16, abfd) != 16)
452216ab 4235 return FALSE;
15e1c58a 4236
452216ab 4237 return TRUE;
15e1c58a
TG		 4238}
4239
452216ab 4240static bfd_boolean
ab273af8 4241bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 4242{
4243 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
46d1c23b 4244 struct mach_o_linkedit_data_command_external raw;
046b007d 4245
46d1c23b
TG		 4246 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4247 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4248 return FALSE;
046b007d 4249
46d1c23b
TG		 4250 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4251 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
452216ab 4252 return TRUE;
046b007d
TG		 4253}
4254
452216ab 4255static bfd_boolean
ab273af8 4256bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 4257{
4258 bfd_mach_o_str_command *cmd = &command->command.str;
46d1c23b 4259 struct mach_o_str_command_external raw;
046b007d
TG		 4260 unsigned long off;
4261
46d1c23b
TG		 4262 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4263 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4264 return FALSE;
046b007d 4265
46d1c23b 4266 off = bfd_get_32 (abfd, raw.str);
046b007d
TG		 4267 cmd->stroff = command->offset + off;
4268 cmd->str_len = command->len - off;
4269 cmd->str = bfd_alloc (abfd, cmd->str_len);
4270 if (cmd->str == NULL)
452216ab 4271 return FALSE;
046b007d 4272 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
91d6fa6a 4273 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
452216ab
TG		 4274 return FALSE;
4275 return TRUE;
046b007d
TG		 4276}
4277
c9ffd2ea
TG		 4278static unsigned char *
4279bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4280{
4281 unsigned char *buf;
4282
4283 buf = bfd_alloc (abfd, size);
4284 if (buf == NULL)
4285 return NULL;
4286 if (bfd_seek (abfd, off, SEEK_SET) != 0
4287 || bfd_bread (buf, size, abfd) != size)
4288 return NULL;
4289 return buf;
4290}
4291
4292static bfd_boolean
4293bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4294{
4295 /* Read rebase content. */
4296 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4297 {
4298 cmd->rebase_content =
4299 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4300 if (cmd->rebase_content == NULL)
4301 return FALSE;
4302 }
4303
4304 /* Read bind content. */
4305 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4306 {
4307 cmd->bind_content =
4308 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4309 if (cmd->bind_content == NULL)
4310 return FALSE;
4311 }
4312
4313 /* Read weak bind content. */
4314 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4315 {
4316 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4317 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4318 if (cmd->weak_bind_content == NULL)
4319 return FALSE;
4320 }
4321
4322 /* Read lazy bind content. */
4323 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4324 {
4325 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4326 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4327 if (cmd->lazy_bind_content == NULL)
4328 return FALSE;
4329 }
4330
4331 /* Read export content. */
4332 if (cmd->export_content == NULL && cmd->export_size != 0)
4333 {
4334 cmd->export_content = bfd_mach_o_alloc_and_read
4335 (abfd, cmd->export_off, cmd->export_size);
4336 if (cmd->export_content == NULL)
4337 return FALSE;
4338 }
4339
4340 return TRUE;
4341}
4342
452216ab 4343static bfd_boolean
ab273af8 4344bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
ad86f1fb
TG		 4345{
4346 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
46d1c23b 4347 struct mach_o_dyld_info_command_external raw;
ad86f1fb 4348
46d1c23b
TG		 4349 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4350 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4351 return FALSE;
ad86f1fb 4352
46d1c23b
TG		 4353 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4354 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
c9ffd2ea 4355 cmd->rebase_content = NULL;
46d1c23b
TG		 4356 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4357 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
c9ffd2ea 4358 cmd->bind_content = NULL;
46d1c23b
TG		 4359 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4360 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
c9ffd2ea 4361 cmd->weak_bind_content = NULL;
46d1c23b
TG		 4362 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4363 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
c9ffd2ea 4364 cmd->lazy_bind_content = NULL;
46d1c23b
TG		 4365 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4366 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
c9ffd2ea 4367 cmd->export_content = NULL;
452216ab 4368 return TRUE;
ad86f1fb
TG		 4369}
4370
edbdea0e
TG		 4371static bfd_boolean
4372bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4373{
4374 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4375 struct mach_o_version_min_command_external raw;
4376 unsigned int ver;
4377
4378 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4379 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4380 return FALSE;
4381
4382 ver = bfd_get_32 (abfd, raw.version);
4383 cmd->rel = ver >> 16;
4384 cmd->maj = ver >> 8;
4385 cmd->min = ver;
4386 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4387 return TRUE;
4388}
4389
fc55a902
TG		 4390static bfd_boolean
4391bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4392{
4393 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4394 struct mach_o_encryption_info_command_external raw;
4395
4396 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4397 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4398 return FALSE;
4399
4400 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4401 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4402 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4403 return TRUE;
4404}
4405
1778ad74
TG		 4406static bfd_boolean
4407bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4408{
4409 bfd_mach_o_main_command *cmd = &command->command.main;
4410 struct mach_o_entry_point_command_external raw;
4411
4412 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4413 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4414 return FALSE;
4415
4416 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4417 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4418 return TRUE;
4419}
4420
4421static bfd_boolean
4422bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4423{
4424 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4425 struct mach_o_source_version_command_external raw;
4426 bfd_uint64_t ver;
4427
4428 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4429 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4430 return FALSE;
4431
4432 ver = bfd_get_64 (abfd, raw.version);
4433 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4434 generates warnings) in case of the host doesn't support 64 bit
4435 integers. */
4436 cmd->e = ver & 0x3ff;
4437 ver >>= 10;
4438 cmd->d = ver & 0x3ff;
4439 ver >>= 10;
4440 cmd->c = ver & 0x3ff;
4441 ver >>= 10;
4442 cmd->b = ver & 0x3ff;
4443 ver >>= 10;
4444 cmd->a = ver & 0xffffff;
4445 return TRUE;
4446}
4447
452216ab 4448static bfd_boolean
ab273af8
TG		 4449bfd_mach_o_read_segment (bfd *abfd,
4450 bfd_mach_o_load_command *command,
4451 unsigned int wide)
3af9a47b 4452{
3af9a47b
NC		 4453 bfd_mach_o_segment_command *seg = &command->command.segment;
4454 unsigned long i;
a95a4550 4455
1e8a024a
TG		 4456 if (wide)
4457 {
46d1c23b
TG		 4458 struct mach_o_segment_command_64_external raw;
4459
1e8a024a 4460 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
3af9a47b 4461
46d1c23b
TG		 4462 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4463 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4464 return FALSE;
3af9a47b 4465
46d1c23b 4466 memcpy (seg->segname, raw.segname, 16);
15e1c58a 4467 seg->segname[16] = '\0';
1e8a024a 4468
46d1c23b
TG		 4469 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4470 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4471 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4472 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4473 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4474 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4475 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4476 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a
TG		 4477 }
4478 else
4479 {
46d1c23b
TG		 4480 struct mach_o_segment_command_32_external raw;
4481
1e8a024a
TG		 4482 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4483
46d1c23b
TG		 4484 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4485 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4486 return FALSE;
1e8a024a 4487
46d1c23b 4488 memcpy (seg->segname, raw.segname, 16);
15e1c58a 4489 seg->segname[16] = '\0';
1e8a024a 4490
46d1c23b
TG		 4491 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4492 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4493 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4494 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4495 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4496 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4497 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4498 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a 4499 }
9d4b6009
TG		 4500 seg->sect_head = NULL;
4501 seg->sect_tail = NULL;
3af9a47b 4502
f1bde64c 4503 for (i = 0; i < seg->nsects; i++)
3af9a47b 4504 {
f1bde64c
TG		 4505 bfd_vma segoff;
4506 asection *sec;
a95a4550 4507
f1bde64c
TG		 4508 if (wide)
4509 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
4510 + (i * BFD_MACH_O_SECTION_64_SIZE);
4511 else
4512 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
4513 + (i * BFD_MACH_O_SECTION_SIZE);
3af9a47b 4514
f1bde64c
TG		 4515 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
4516 if (sec == NULL)
452216ab 4517 return FALSE;
f1bde64c 4518
c9ffd2ea
TG		 4519 bfd_mach_o_append_section_to_segment
4520 (seg, bfd_mach_o_get_mach_o_section (sec));
3af9a47b
NC		 4521 }
4522
452216ab 4523 return TRUE;
3af9a47b
NC		 4524}
4525
452216ab 4526static bfd_boolean
ab273af8 4527bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 4528{
ab273af8 4529 return bfd_mach_o_read_segment (abfd, command, 0);
1e8a024a
TG		 4530}
4531
452216ab 4532static bfd_boolean
ab273af8 4533bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 4534{
ab273af8 4535 return bfd_mach_o_read_segment (abfd, command, 1);
1e8a024a
TG		 4536}
4537
452216ab 4538static bfd_boolean
ab273af8 4539bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4540{
46d1c23b
TG		 4541 struct mach_o_load_command_external raw;
4542 unsigned int cmd;
3af9a47b 4543
046b007d 4544 /* Read command type and length. */
c2f09c75 4545 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
46d1c23b 4546 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
452216ab 4547 return FALSE;
3af9a47b 4548
46d1c23b
TG		 4549 cmd = bfd_h_get_32 (abfd, raw.cmd);
4550 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4551 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4552 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
3af9a47b
NC		 4553
4554 switch (command->type)
4555 {
4556 case BFD_MACH_O_LC_SEGMENT:
452216ab
TG		 4557 if (!bfd_mach_o_read_segment_32 (abfd, command))
4558 return FALSE;
1e8a024a
TG		 4559 break;
4560 case BFD_MACH_O_LC_SEGMENT_64:
452216ab
TG		 4561 if (!bfd_mach_o_read_segment_64 (abfd, command))
4562 return FALSE;
3af9a47b
NC		 4563 break;
4564 case BFD_MACH_O_LC_SYMTAB:
452216ab
TG		 4565 if (!bfd_mach_o_read_symtab (abfd, command))
4566 return FALSE;
3af9a47b
NC		 4567 break;
4568 case BFD_MACH_O_LC_SYMSEG:
4569 break;
4570 case BFD_MACH_O_LC_THREAD:
4571 case BFD_MACH_O_LC_UNIXTHREAD:
452216ab
TG		 4572 if (!bfd_mach_o_read_thread (abfd, command))
4573 return FALSE;
3af9a47b
NC		 4574 break;
4575 case BFD_MACH_O_LC_LOAD_DYLINKER:
4576 case BFD_MACH_O_LC_ID_DYLINKER:
10be66a4 4577 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
452216ab
TG		 4578 if (!bfd_mach_o_read_dylinker (abfd, command))
4579 return FALSE;
3af9a47b
NC		 4580 break;
4581 case BFD_MACH_O_LC_LOAD_DYLIB:
fbe383b9 4582 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3af9a47b
NC		 4583 case BFD_MACH_O_LC_ID_DYLIB:
4584 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 4585 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 4586 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
452216ab
TG		 4587 if (!bfd_mach_o_read_dylib (abfd, command))
4588 return FALSE;
3af9a47b
NC		 4589 break;
4590 case BFD_MACH_O_LC_PREBOUND_DYLIB:
452216ab
TG		 4591 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4592 return FALSE;
3af9a47b
NC		 4593 break;
4594 case BFD_MACH_O_LC_LOADFVMLIB:
4595 case BFD_MACH_O_LC_IDFVMLIB:
452216ab
TG		 4596 if (!bfd_mach_o_read_fvmlib (abfd, command))
4597 return FALSE;
9f4a5bd1 4598 break;
3af9a47b
NC		 4599 case BFD_MACH_O_LC_IDENT:
4600 case BFD_MACH_O_LC_FVMFILE:
4601 case BFD_MACH_O_LC_PREPAGE:
4602 case BFD_MACH_O_LC_ROUTINES:
9b02d212 4603 case BFD_MACH_O_LC_ROUTINES_64:
046b007d 4604 break;
3af9a47b 4605 case BFD_MACH_O_LC_SUB_FRAMEWORK:
046b007d
TG		 4606 case BFD_MACH_O_LC_SUB_UMBRELLA:
4607 case BFD_MACH_O_LC_SUB_LIBRARY:
4608 case BFD_MACH_O_LC_SUB_CLIENT:
0c9b2b4c 4609 case BFD_MACH_O_LC_RPATH:
452216ab
TG		 4610 if (!bfd_mach_o_read_str (abfd, command))
4611 return FALSE;
3af9a47b
NC		 4612 break;
4613 case BFD_MACH_O_LC_DYSYMTAB:
452216ab
TG		 4614 if (!bfd_mach_o_read_dysymtab (abfd, command))
4615 return FALSE;
3af9a47b 4616 break;
3af9a47b 4617 case BFD_MACH_O_LC_PREBIND_CKSUM:
452216ab
TG		 4618 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4619 return FALSE;
7a79c514
TG		 4620 break;
4621 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
452216ab
TG		 4622 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4623 return FALSE;
3af9a47b 4624 break;
15e1c58a 4625 case BFD_MACH_O_LC_UUID:
452216ab
TG		 4626 if (!bfd_mach_o_read_uuid (abfd, command))
4627 return FALSE;
15e1c58a
TG		 4628 break;
4629 case BFD_MACH_O_LC_CODE_SIGNATURE:
846b9259 4630 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
edbdea0e 4631 case BFD_MACH_O_LC_FUNCTION_STARTS:
1778ad74
TG		 4632 case BFD_MACH_O_LC_DATA_IN_CODE:
4633 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
452216ab
TG		 4634 if (!bfd_mach_o_read_linkedit (abfd, command))
4635 return FALSE;
15e1c58a 4636 break;
fc55a902
TG		 4637 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4638 if (!bfd_mach_o_read_encryption_info (abfd, command))
452216ab 4639 return FALSE;
fc55a902 4640 break;
ad86f1fb 4641 case BFD_MACH_O_LC_DYLD_INFO:
452216ab
TG		 4642 if (!bfd_mach_o_read_dyld_info (abfd, command))
4643 return FALSE;
ad86f1fb 4644 break;
edbdea0e
TG		 4645 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4646 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4647 if (!bfd_mach_o_read_version_min (abfd, command))
452216ab 4648 return FALSE;
edbdea0e 4649 break;
1778ad74
TG		 4650 case BFD_MACH_O_LC_MAIN:
4651 if (!bfd_mach_o_read_main (abfd, command))
452216ab 4652 return FALSE;
1778ad74
TG		 4653 break;
4654 case BFD_MACH_O_LC_SOURCE_VERSION:
4655 if (!bfd_mach_o_read_source_version (abfd, command))
452216ab 4656 return FALSE;
1778ad74 4657 break;
3af9a47b 4658 default:
fc55a902 4659 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
c0d9d051 4660 abfd, (unsigned long) command->type);
3af9a47b
NC		 4661 break;
4662 }
4663
452216ab 4664 return TRUE;
3af9a47b
NC		 4665}
4666
4667static void
116c20d2 4668bfd_mach_o_flatten_sections (bfd *abfd)
3af9a47b 4669{
046b007d 4670 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea 4671 bfd_mach_o_load_command *cmd;
3af9a47b 4672 long csect = 0;
a95a4550 4673
15e1c58a 4674 /* Count total number of sections. */
3af9a47b
NC		 4675 mdata->nsects = 0;
4676
c9ffd2ea 4677 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 4678 {
c9ffd2ea
TG		 4679 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4680 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 4681 {
c9ffd2ea 4682 bfd_mach_o_segment_command *seg = &cmd->command.segment;
e84d6fca 4683
3af9a47b
NC		 4684 mdata->nsects += seg->nsects;
4685 }
4686 }
4687
15e1c58a 4688 /* Allocate sections array. */
e84d6fca
AM		 4689 mdata->sections = bfd_alloc (abfd,
4690 mdata->nsects * sizeof (bfd_mach_o_section *));
15e1c58a
TG		 4691
4692 /* Fill the array. */
3af9a47b
NC		 4693 csect = 0;
4694
c9ffd2ea 4695 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 4696 {
c9ffd2ea
TG		 4697 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4698 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 4699 {
c9ffd2ea 4700 bfd_mach_o_segment_command *seg = &cmd->command.segment;
f1bde64c 4701 bfd_mach_o_section *sec;
3af9a47b
NC		 4702
4703 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4704
f1bde64c
TG		 4705 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4706 mdata->sections[csect++] = sec;
3af9a47b
NC		 4707 }
4708 }
4709}
4710
afbb9e17 4711static bfd_boolean
116c20d2 4712bfd_mach_o_scan_start_address (bfd *abfd)
3af9a47b 4713{
046b007d 4714 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea
TG		 4715 bfd_mach_o_thread_command *thr = NULL;
4716 bfd_mach_o_load_command *cmd;
3af9a47b
NC		 4717 unsigned long i;
4718
c9ffd2ea
TG		 4719 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4720 if (cmd->type == BFD_MACH_O_LC_THREAD
4721 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
afbb9e17 4722 {
c9ffd2ea 4723 thr = &cmd->command.thread;
afbb9e17
TG		 4724 break;
4725 }
c9ffd2ea 4726 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
c0fd7846 4727 {
c9ffd2ea 4728 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
c0fd7846 4729 bfd_mach_o_section *text_sect = mdata->sections[0];
c9ffd2ea 4730
c0fd7846
TG		 4731 if (text_sect)
4732 {
4733 abfd->start_address = main_cmd->entryoff
4734 + (text_sect->addr - text_sect->offset);
4735 return TRUE;
4736 }
4737 }
3af9a47b 4738
5ee43bc4 4739 /* An object file has no start address, so do not fail if not found. */
c9ffd2ea 4740 if (thr == NULL)
5ee43bc4 4741 return TRUE;
3af9a47b 4742
afbb9e17 4743 /* FIXME: create a subtarget hook ? */
c9ffd2ea 4744 for (i = 0; i < thr->nflavours; i++)
3af9a47b 4745 {
a95a4550 4746 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
c9ffd2ea 4747 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
3af9a47b
NC		 4748 {
4749 unsigned char buf[4];
4750
c9ffd2ea 4751 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
c2f09c75 4752 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 4753 return FALSE;
3af9a47b
NC		 4754
4755 abfd->start_address = bfd_h_get_32 (abfd, buf);
4756 }
a95a4550 4757 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
c9ffd2ea 4758 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
3af9a47b
NC		 4759 {
4760 unsigned char buf[4];
4761
c9ffd2ea 4762 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
c2f09c75 4763 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 4764 return FALSE;
3af9a47b
NC		 4765
4766 abfd->start_address = bfd_h_get_32 (abfd, buf);
4767 }
1e8a024a 4768 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
c9ffd2ea 4769 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
1e8a024a
TG		 4770 {
4771 unsigned char buf[8];
4772
c9ffd2ea 4773 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
c2f09c75 4774 || bfd_bread (buf, 8, abfd) != 8)
afbb9e17 4775 return FALSE;
1e8a024a
TG		 4776
4777 abfd->start_address = bfd_h_get_64 (abfd, buf);
4778 }
4779 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
c9ffd2ea 4780 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
1e8a024a
TG		 4781 {
4782 unsigned char buf[8];
4783
c9ffd2ea 4784 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
c2f09c75 4785 || bfd_bread (buf, 8, abfd) != 8)
afbb9e17 4786 return FALSE;
1e8a024a
TG		 4787
4788 abfd->start_address = bfd_h_get_64 (abfd, buf);
4789 }
3af9a47b
NC		 4790 }
4791
afbb9e17 4792 return TRUE;
3af9a47b
NC		 4793}
4794
42fa0891
TG		 4795bfd_boolean
4796bfd_mach_o_set_arch_mach (bfd *abfd,
4797 enum bfd_architecture arch,
4798 unsigned long machine)
4799{
4800 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4801
4802 /* If this isn't the right architecture for this backend, and this
4803 isn't the generic backend, fail. */
4804 if (arch != bed->arch
4805 && arch != bfd_arch_unknown
4806 && bed->arch != bfd_arch_unknown)
4807 return FALSE;
4808
4809 return bfd_default_set_arch_mach (abfd, arch, machine);
4810}
4811
afbb9e17 4812static bfd_boolean
116c20d2
NC		 4813bfd_mach_o_scan (bfd *abfd,
4814 bfd_mach_o_header *header,
4815 bfd_mach_o_data_struct *mdata)
3af9a47b
NC		 4816{
4817 unsigned int i;
3af9a47b
NC		 4818 enum bfd_architecture cputype;
4819 unsigned long cpusubtype;
1e8a024a
TG		 4820 unsigned int hdrsize;
4821
c2f09c75 4822 hdrsize = mach_o_wide_p (header) ?
154a1ee5 4823 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3af9a47b 4824
3af9a47b 4825 mdata->header = *header;
3af9a47b 4826
154a1ee5 4827 abfd->flags = abfd->flags & BFD_IN_MEMORY;
15e1c58a
TG		 4828 switch (header->filetype)
4829 {
4830 case BFD_MACH_O_MH_OBJECT:
4831 abfd->flags |= HAS_RELOC;
4832 break;
4833 case BFD_MACH_O_MH_EXECUTE:
4834 abfd->flags |= EXEC_P;
4835 break;
4836 case BFD_MACH_O_MH_DYLIB:
4837 case BFD_MACH_O_MH_BUNDLE:
4838 abfd->flags |= DYNAMIC;
4839 break;
4840 }
4841
3af9a47b
NC		 4842 abfd->tdata.mach_o_data = mdata;
4843
e84d6fca
AM		 4844 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4845 &cputype, &cpusubtype);
3af9a47b
NC		 4846 if (cputype == bfd_arch_unknown)
4847 {
afbb9e17
TG		 4848 (*_bfd_error_handler)
4849 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
4850 header->cputype, header->cpusubtype);
4851 return FALSE;
3af9a47b
NC		 4852 }
4853
4854 bfd_set_arch_mach (abfd, cputype, cpusubtype);
a95a4550 4855
3af9a47b
NC		 4856 if (header->ncmds != 0)
4857 {
c9ffd2ea
TG		 4858 bfd_mach_o_load_command *cmd;
4859
4860 mdata->first_command = NULL;
4861 mdata->last_command = NULL;
4862 cmd = bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
4863 if (cmd == NULL)
afbb9e17 4864 return FALSE;
a95a4550 4865
3af9a47b
NC		 4866 for (i = 0; i < header->ncmds; i++)
4867 {
c9ffd2ea
TG		 4868 bfd_mach_o_load_command *cur = &cmd[i];
4869
4870 bfd_mach_o_append_command (abfd, cur);
3af9a47b
NC		 4871
4872 if (i == 0)
1e8a024a 4873 cur->offset = hdrsize;
3af9a47b
NC		 4874 else
4875 {
c9ffd2ea 4876 bfd_mach_o_load_command *prev = &cmd[i - 1];
3af9a47b
NC		 4877 cur->offset = prev->offset + prev->len;
4878 }
4879
452216ab 4880 if (!bfd_mach_o_read_command (abfd, cur))
afbb9e17 4881 return FALSE;
a95a4550 4882 }
3af9a47b
NC		 4883 }
4884
c0fd7846
TG		 4885 /* Sections should be flatten before scanning start address. */
4886 bfd_mach_o_flatten_sections (abfd);
4887 if (!bfd_mach_o_scan_start_address (abfd))
afbb9e17 4888 return FALSE;
3af9a47b 4889
afbb9e17 4890 return TRUE;
3af9a47b
NC		 4891}
4892
b34976b6 4893bfd_boolean
154a1ee5 4894bfd_mach_o_mkobject_init (bfd *abfd)
3af9a47b
NC		 4895{
4896 bfd_mach_o_data_struct *mdata = NULL;
4897
b30a5d18 4898 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
3af9a47b 4899 if (mdata == NULL)
b34976b6 4900 return FALSE;
3af9a47b
NC		 4901 abfd->tdata.mach_o_data = mdata;
4902
4903 mdata->header.magic = 0;
4904 mdata->header.cputype = 0;
4905 mdata->header.cpusubtype = 0;
4906 mdata->header.filetype = 0;
4907 mdata->header.ncmds = 0;
4908 mdata->header.sizeofcmds = 0;
4909 mdata->header.flags = 0;
4910 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
c9ffd2ea
TG		 4911 mdata->first_command = NULL;
4912 mdata->last_command = NULL;
3af9a47b
NC		 4913 mdata->nsects = 0;
4914 mdata->sections = NULL;
4434114c 4915 mdata->dyn_reloc_cache = NULL;
3af9a47b 4916
b34976b6 4917 return TRUE;
3af9a47b
NC		 4918}
4919
42fa0891
TG		 4920static bfd_boolean
4921bfd_mach_o_gen_mkobject (bfd *abfd)
4922{
4923 bfd_mach_o_data_struct *mdata;
4924
4925 if (!bfd_mach_o_mkobject_init (abfd))
4926 return FALSE;
4927
4928 mdata = bfd_mach_o_get_data (abfd);
4929 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
4930 mdata->header.cputype = 0;
4931 mdata->header.cpusubtype = 0;
4932 mdata->header.byteorder = abfd->xvec->byteorder;
4933 mdata->header.version = 1;
4934
4935 return TRUE;
4936}
4937
3af9a47b 4938const bfd_target *
154a1ee5
TG		 4939bfd_mach_o_header_p (bfd *abfd,
4940 bfd_mach_o_filetype filetype,
4941 bfd_mach_o_cpu_type cputype)
3af9a47b
NC		 4942{
4943 bfd_mach_o_header header;
c9ba0c87 4944 bfd_mach_o_data_struct *mdata;
3af9a47b 4945
154a1ee5 4946 if (!bfd_mach_o_read_header (abfd, &header))
e84d6fca 4947 goto wrong;
3af9a47b 4948
e84d6fca
AM		 4949 if (! (header.byteorder == BFD_ENDIAN_BIG
4950 || header.byteorder == BFD_ENDIAN_LITTLE))
3af9a47b 4951 {
4a97a0e5
AM		 4952 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
4953 (unsigned long) header.byteorder);
e84d6fca 4954 goto wrong;
3af9a47b
NC		 4955 }
4956
e84d6fca
AM		 4957 if (! ((header.byteorder == BFD_ENDIAN_BIG
4958 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
4959 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
4960 || (header.byteorder == BFD_ENDIAN_LITTLE
4961 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
4962 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
4963 goto wrong;
3af9a47b 4964
154a1ee5
TG		 4965 /* Check cputype and filetype.
4966 In case of wildcard, do not accept magics that are handled by existing
4967 targets. */
4968 if (cputype)
4969 {
4970 if (header.cputype != cputype)
4971 goto wrong;
4972 }
26954155
TG		 4973 else
4974 {
4975#ifndef BFD64
4976 /* Do not recognize 64 architectures if not configured for 64bit targets.
4977 This could happen only for generic targets. */
4978 if (mach_o_wide_p (&header))
4979 goto wrong;
4980#endif
4981 }
b22161d6 4982
154a1ee5
TG		 4983 if (filetype)
4984 {
4985 if (header.filetype != filetype)
4986 goto wrong;
4987 }
4988 else
4989 {
4990 switch (header.filetype)
4991 {
4992 case BFD_MACH_O_MH_CORE:
4993 /* Handled by core_p */
4994 goto wrong;
4995 default:
4996 break;
4997 }
4998 }
4999
c9ba0c87
AM		 5000 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5001 if (mdata == NULL)
e84d6fca 5002 goto fail;
3af9a47b 5003
c9ba0c87 5004 if (!bfd_mach_o_scan (abfd, &header, mdata))
e84d6fca 5005 goto wrong;
a95a4550 5006
3af9a47b 5007 return abfd->xvec;
e84d6fca
AM		 5008
5009 wrong:
5010 bfd_set_error (bfd_error_wrong_format);
5011
5012 fail:
e84d6fca 5013 return NULL;
3af9a47b
NC		 5014}
5015
154a1ee5
TG		 5016static const bfd_target *
5017bfd_mach_o_gen_object_p (bfd *abfd)
3af9a47b 5018{
154a1ee5
TG		 5019 return bfd_mach_o_header_p (abfd, 0, 0);
5020}
e84d6fca 5021
154a1ee5
TG		 5022static const bfd_target *
5023bfd_mach_o_gen_core_p (bfd *abfd)
5024{
5025 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
3af9a47b
NC		 5026}
5027
3cc27770
TG		 5028/* Return the base address of ABFD, ie the address at which the image is
5029 mapped. The possible initial pagezero is ignored. */
5030
5031bfd_vma
5032bfd_mach_o_get_base_address (bfd *abfd)
5033{
5034 bfd_mach_o_data_struct *mdata;
c9ffd2ea 5035 bfd_mach_o_load_command *cmd;
3cc27770
TG		 5036
5037 /* Check for Mach-O. */
5038 if (!bfd_mach_o_valid (abfd))
5039 return 0;
5040 mdata = bfd_mach_o_get_data (abfd);
5041
c9ffd2ea 5042 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3cc27770 5043 {
3cc27770
TG		 5044 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5045 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5046 {
5047 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5048
5049 if (segcmd->initprot != 0)
5050 return segcmd->vmaddr;
5051 }
5052 }
5053 return 0;
5054}
5055
3af9a47b
NC		 5056typedef struct mach_o_fat_archentry
5057{
5058 unsigned long cputype;
5059 unsigned long cpusubtype;
5060 unsigned long offset;
5061 unsigned long size;
5062 unsigned long align;
3af9a47b
NC		 5063} mach_o_fat_archentry;
5064
5065typedef struct mach_o_fat_data_struct
5066{
5067 unsigned long magic;
5068 unsigned long nfat_arch;
5069 mach_o_fat_archentry *archentries;
5070} mach_o_fat_data_struct;
5071
5072const bfd_target *
116c20d2 5073bfd_mach_o_archive_p (bfd *abfd)
3af9a47b 5074{
e84d6fca 5075 mach_o_fat_data_struct *adata = NULL;
46d1c23b 5076 struct mach_o_fat_header_external hdr;
3af9a47b
NC		 5077 unsigned long i;
5078
c2f09c75 5079 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 5080 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
e84d6fca 5081 goto error;
3af9a47b 5082
116c20d2 5083 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
3af9a47b 5084 if (adata == NULL)
e84d6fca 5085 goto error;
a95a4550 5086
46d1c23b
TG		 5087 adata->magic = bfd_getb32 (hdr.magic);
5088 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
3af9a47b 5089 if (adata->magic != 0xcafebabe)
e84d6fca 5090 goto error;
27cc28f9
AS		 5091 /* Avoid matching Java bytecode files, which have the same magic number.
5092 In the Java bytecode file format this field contains the JVM version,
5093 which starts at 43.0. */
5094 if (adata->nfat_arch > 30)
5095 goto error;
3af9a47b 5096
c2f09c75 5097 adata->archentries =
3af9a47b
NC		 5098 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
5099 if (adata->archentries == NULL)
e84d6fca 5100 goto error;
3af9a47b
NC		 5101
5102 for (i = 0; i < adata->nfat_arch; i++)
5103 {
46d1c23b
TG		 5104 struct mach_o_fat_arch_external arch;
5105 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
e84d6fca 5106 goto error;
46d1c23b
TG		 5107 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5108 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5109 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5110 adata->archentries[i].size = bfd_getb32 (arch.size);
5111 adata->archentries[i].align = bfd_getb32 (arch.align);
3af9a47b
NC		 5112 }
5113
5114 abfd->tdata.mach_o_fat_data = adata;
5115 return abfd->xvec;
e84d6fca
AM		 5116
5117 error:
5118 if (adata != NULL)
5119 bfd_release (abfd, adata);
5120 bfd_set_error (bfd_error_wrong_format);
5121 return NULL;
3af9a47b
NC		 5122}
5123
a4e241ca
TG		 5124/* Set the filename for a fat binary member ABFD, whose bfd architecture is
5125 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5126 Set arelt_data and origin fields too. */
5127
5128static void
5129bfd_mach_o_fat_member_init (bfd *abfd,
5130 enum bfd_architecture arch_type,
5131 unsigned long arch_subtype,
5132 mach_o_fat_archentry *entry)
5133{
5134 struct areltdata *areltdata;
5135 /* Create the member filename. Use ARCH_NAME. */
5136 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5137
5138 if (ap)
5139 {
5140 /* Use the architecture name if known. */
1be5090b 5141 abfd->filename = xstrdup (ap->printable_name);
a4e241ca
TG		 5142 }
5143 else
5144 {
5145 /* Forge a uniq id. */
5146 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
1be5090b 5147 char *name = xmalloc (namelen);
a4e241ca
TG		 5148 snprintf (name, namelen, "0x%lx-0x%lx",
5149 entry->cputype, entry->cpusubtype);
5150 abfd->filename = name;
5151 }
5152
06e7acd7 5153 areltdata = bfd_zmalloc (sizeof (struct areltdata));
a4e241ca
TG		 5154 areltdata->parsed_size = entry->size;
5155 abfd->arelt_data = areltdata;
5156 abfd->iostream = NULL;
5157 abfd->origin = entry->offset;
5158}
5159
3af9a47b 5160bfd *
116c20d2 5161bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
3af9a47b 5162{
e84d6fca 5163 mach_o_fat_data_struct *adata;
3af9a47b
NC		 5164 mach_o_fat_archentry *entry = NULL;
5165 unsigned long i;
15e1c58a 5166 bfd *nbfd;
15e1c58a
TG		 5167 enum bfd_architecture arch_type;
5168 unsigned long arch_subtype;
3af9a47b 5169
e84d6fca 5170 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
3af9a47b
NC		 5171 BFD_ASSERT (adata != NULL);
5172
5173 /* Find index of previous entry. */
5174 if (prev == NULL)
a4e241ca
TG		 5175 {
5176 /* Start at first one. */
5177 i = 0;
5178 }
3af9a47b
NC		 5179 else
5180 {
a4e241ca 5181 /* Find index of PREV. */
3af9a47b
NC		 5182 for (i = 0; i < adata->nfat_arch; i++)
5183 {
15e1c58a 5184 if (adata->archentries[i].offset == prev->origin)
3af9a47b
NC		 5185 break;
5186 }
5187
5188 if (i == adata->nfat_arch)
5189 {
5190 /* Not found. */
5191 bfd_set_error (bfd_error_bad_value);
a95a4550 5192 return NULL;
3af9a47b 5193 }
a4e241ca
TG		 5194
5195 /* Get next entry. */
5196 i++;
5197 }
a95a4550 5198
3af9a47b
NC		 5199 if (i >= adata->nfat_arch)
5200 {
5201 bfd_set_error (bfd_error_no_more_archived_files);
5202 return NULL;
5203 }
5204
5205 entry = &adata->archentries[i];
15e1c58a
TG		 5206 nbfd = _bfd_new_bfd_contained_in (archive);
5207 if (nbfd == NULL)
5208 return NULL;
5209
15e1c58a
TG		 5210 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5211 &arch_type, &arch_subtype);
846b9259 5212
a4e241ca
TG		 5213 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5214
846b9259 5215 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
3af9a47b 5216
15e1c58a 5217 return nbfd;
3af9a47b
NC		 5218}
5219
15bbba8d
TG		 5220/* Analogous to stat call. */
5221
5222static int
5223bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5224{
5225 if (abfd->arelt_data == NULL)
5226 {
5227 bfd_set_error (bfd_error_invalid_operation);
5228 return -1;
5229 }
5230
5231 buf->st_mtime = 0;
5232 buf->st_uid = 0;
5233 buf->st_gid = 0;
5234 buf->st_mode = 0644;
5235 buf->st_size = arelt_size (abfd);
5236
5237 return 0;
5238}
5239
846b9259
TG		 5240/* If ABFD format is FORMAT and architecture is ARCH, return it.
5241 If ABFD is a fat image containing a member that corresponds to FORMAT
5242 and ARCH, returns it.
5243 In other case, returns NULL.
5244 This function allows transparent uses of fat images. */
a4e241ca 5245
846b9259
TG		 5246bfd *
5247bfd_mach_o_fat_extract (bfd *abfd,
5248 bfd_format format,
5249 const bfd_arch_info_type *arch)
5250{
5251 bfd *res;
5252 mach_o_fat_data_struct *adata;
5253 unsigned int i;
5254
5255 if (bfd_check_format (abfd, format))
5256 {
5257 if (bfd_get_arch_info (abfd) == arch)
5258 return abfd;
5259 return NULL;
5260 }
5261 if (!bfd_check_format (abfd, bfd_archive)
5262 || abfd->xvec != &mach_o_fat_vec)
5263 return NULL;
c2f09c75 5264
846b9259
TG		 5265 /* This is a Mach-O fat image. */
5266 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5267 BFD_ASSERT (adata != NULL);
5268
5269 for (i = 0; i < adata->nfat_arch; i++)
5270 {
5271 struct mach_o_fat_archentry *e = &adata->archentries[i];
5272 enum bfd_architecture cpu_type;
5273 unsigned long cpu_subtype;
5274
5275 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5276 &cpu_type, &cpu_subtype);
5277 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5278 continue;
5279
5280 /* The architecture is found. */
5281 res = _bfd_new_bfd_contained_in (abfd);
5282 if (res == NULL)
5283 return NULL;
5284
a4e241ca 5285 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
846b9259
TG		 5286
5287 if (bfd_check_format (res, format))
5288 {
5289 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5290 return res;
5291 }
5292 bfd_close (res);
5293 return NULL;
5294 }
5295
5296 return NULL;
5297}
5298
3af9a47b 5299int
116c20d2
NC		 5300bfd_mach_o_lookup_command (bfd *abfd,
5301 bfd_mach_o_load_command_type type,
5302 bfd_mach_o_load_command **mcommand)
3af9a47b 5303{
c9ffd2ea
TG		 5304 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5305 struct bfd_mach_o_load_command *cmd;
5306 unsigned int num;
3af9a47b 5307
c9ffd2ea 5308 BFD_ASSERT (mdata != NULL);
3af9a47b
NC		 5309 BFD_ASSERT (mcommand != NULL);
5310
5311 num = 0;
c9ffd2ea 5312 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5313 {
3af9a47b
NC		 5314 if (cmd->type != type)
5315 continue;
5316
5317 if (num == 0)
c9ffd2ea 5318 *mcommand = cmd;
3af9a47b
NC		 5319 num++;
5320 }
5321
3af9a47b
NC		 5322 return num;
5323}
5324
5325unsigned long
116c20d2 5326bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
3af9a47b
NC		 5327{
5328 switch (type)
5329 {
5330 case BFD_MACH_O_CPU_TYPE_MC680x0:
5331 return 0x04000000;
5332 case BFD_MACH_O_CPU_TYPE_MC88000:
5333 return 0xffffe000;
5334 case BFD_MACH_O_CPU_TYPE_POWERPC:
5335 return 0xc0000000;
5336 case BFD_MACH_O_CPU_TYPE_I386:
5337 return 0xc0000000;
5338 case BFD_MACH_O_CPU_TYPE_SPARC:
5339 return 0xf0000000;
5340 case BFD_MACH_O_CPU_TYPE_I860:
5341 return 0;
5342 case BFD_MACH_O_CPU_TYPE_HPPA:
e84d6fca 5343 return 0xc0000000 - 0x04000000;
3af9a47b
NC		 5344 default:
5345 return 0;
5346 }
5347}
5348
ab76eeaf
IS		 5349/* The following two tables should be kept, as far as possible, in order of
5350 most frequently used entries to optimize their use from gas. */
5351
c5012cd8 5352const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
046b007d
TG		 5353{
5354 { "regular", BFD_MACH_O_S_REGULAR},
ab76eeaf 5355 { "coalesced", BFD_MACH_O_S_COALESCED},
046b007d
TG		 5356 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5357 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5358 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5359 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
ab76eeaf 5360 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
046b007d 5361 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
046b007d
TG		 5362 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5363 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
046b007d
TG		 5364 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5365 { "interposing", BFD_MACH_O_S_INTERPOSING},
046b007d 5366 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
ab76eeaf
IS		 5367 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5368 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
a4551119 5369 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
046b007d
TG		 5370 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5371 { NULL, 0}
5372};
5373
c5012cd8 5374const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
046b007d 5375{
ab76eeaf
IS		 5376 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5377 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
046b007d
TG		 5378 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5379 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
046b007d 5380 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
046b007d
TG		 5381 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5382 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5383 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5384 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
a4551119 5385 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
ab76eeaf 5386 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
046b007d
TG		 5387 { NULL, 0}
5388};
5389
a4551119 5390/* Get the section type from NAME. Return 256 if NAME is unknown. */
53d58d96
TG		 5391
5392unsigned int
ab76eeaf 5393bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
53d58d96 5394{
afbb9e17 5395 const bfd_mach_o_xlat_name *x;
ab76eeaf 5396 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
53d58d96
TG		 5397
5398 for (x = bfd_mach_o_section_type_name; x->name; x++)
5399 if (strcmp (x->name, name) == 0)
ab76eeaf
IS		 5400 {
5401 /* We found it... does the target support it? */
5402 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5403 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5404 return x->val; /* OK. */
5405 else
5406 break; /* Not supported. */
5407 }
a4551119
TG		 5408 /* Maximum section ID = 0xff. */
5409 return 256;
53d58d96
TG		 5410}
5411
5412/* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5413
5414unsigned int
5415bfd_mach_o_get_section_attribute_from_name (const char *name)
5416{
afbb9e17 5417 const bfd_mach_o_xlat_name *x;
53d58d96
TG		 5418
5419 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5420 if (strcmp (x->name, name) == 0)
5421 return x->val;
5422 return (unsigned int)-1;
5423}
5424
3af9a47b 5425int
116c20d2
NC		 5426bfd_mach_o_core_fetch_environment (bfd *abfd,
5427 unsigned char **rbuf,
5428 unsigned int *rlen)
3af9a47b 5429{
046b007d 5430 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 5431 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
c9ffd2ea 5432 bfd_mach_o_load_command *cmd;
3af9a47b 5433
c9ffd2ea 5434 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5435 {
c9ffd2ea 5436 bfd_mach_o_segment_command *seg;
3af9a47b 5437
c9ffd2ea 5438 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
3af9a47b
NC		 5439 continue;
5440
c9ffd2ea 5441 seg = &cmd->command.segment;
3af9a47b
NC		 5442
5443 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5444 {
5445 unsigned long start = seg->fileoff;
5446 unsigned long end = seg->fileoff + seg->filesize;
5447 unsigned char *buf = bfd_malloc (1024);
5448 unsigned long size = 1024;
5449
5450 for (;;)
5451 {
5452 bfd_size_type nread = 0;
5453 unsigned long offset;
5454 int found_nonnull = 0;
5455
5456 if (size > (end - start))
5457 size = (end - start);
5458
515ef31d
NC		 5459 buf = bfd_realloc_or_free (buf, size);
5460 if (buf == NULL)
5461 return -1;
c2f09c75
TG		 5462
5463 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5464 {
5465 free (buf);
5466 return -1;
5467 }
5468
3af9a47b 5469 nread = bfd_bread (buf, size, abfd);
a95a4550 5470
3af9a47b 5471 if (nread != size)
515ef31d
NC		 5472 {
5473 free (buf);
5474 return -1;
5475 }
a95a4550 5476
3af9a47b
NC		 5477 for (offset = 4; offset <= size; offset += 4)
5478 {
e84d6fca 5479 unsigned long val;
3af9a47b 5480
e84d6fca 5481 val = *((unsigned long *) (buf + size - offset));
3af9a47b
NC		 5482 if (! found_nonnull)
5483 {
5484 if (val != 0)
5485 found_nonnull = 1;
5486 }
5487 else if (val == 0x0)
5488 {
e84d6fca
AM		 5489 unsigned long bottom;
5490 unsigned long top;
3af9a47b 5491
e84d6fca
AM		 5492 bottom = seg->fileoff + seg->filesize - offset;
5493 top = seg->fileoff + seg->filesize - 4;
3af9a47b
NC		 5494 *rbuf = bfd_malloc (top - bottom);
5495 *rlen = top - bottom;
5496
5497 memcpy (*rbuf, buf + size - *rlen, *rlen);
515ef31d 5498 free (buf);
3af9a47b
NC		 5499 return 0;
5500 }
5501 }
5502
5503 if (size == (end - start))
5504 break;
5505
5506 size *= 2;
5507 }
515ef31d
NC		 5508
5509 free (buf);
3af9a47b
NC		 5510 }
5511 }
5512
5513 return -1;
5514}
5515
5516char *
116c20d2 5517bfd_mach_o_core_file_failing_command (bfd *abfd)
3af9a47b
NC		 5518{
5519 unsigned char *buf = NULL;
5520 unsigned int len = 0;
452216ab 5521 int ret;
3af9a47b
NC		 5522
5523 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5524 if (ret < 0)
5525 return NULL;
5526
f075ee0c 5527 return (char *) buf;
3af9a47b
NC		 5528}
5529
5530int
116c20d2 5531bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
3af9a47b
NC		 5532{
5533 return 0;
5534}
5535
2ca7691a
TG		 5536static bfd_mach_o_uuid_command *
5537bfd_mach_o_lookup_uuid_command (bfd *abfd)
5538{
5539 bfd_mach_o_load_command *uuid_cmd;
5540 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5541 if (ncmd != 1)
5542 return FALSE;
5543 return &uuid_cmd->command.uuid;
5544}
5545
5546/* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5547
5548static bfd_boolean
5549bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5550{
5551 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5552
5553 BFD_ASSERT (abfd);
5554 BFD_ASSERT (uuid_cmd);
5555
5556 if (!bfd_check_format (abfd, bfd_object))
5557 return FALSE;
5558
5559 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5560 || bfd_mach_o_get_data (abfd) == NULL
5561 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5562 return FALSE;
5563
5564 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5565 if (dsym_uuid_cmd == NULL)
5566 return FALSE;
5567
5568 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5569 sizeof (uuid_cmd->uuid)) != 0)
5570 return FALSE;
5571
5572 return TRUE;
5573}
5574
5575/* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5576 The caller is responsible for closing the returned BFD object and
5577 its my_archive if the returned BFD is in a fat dSYM. */
5578
5579static bfd *
5580bfd_mach_o_find_dsym (const char *dsym_filename,
5581 const bfd_mach_o_uuid_command *uuid_cmd,
5582 const bfd_arch_info_type *arch)
5583{
5584 bfd *base_dsym_bfd, *dsym_bfd;
5585
5586 BFD_ASSERT (uuid_cmd);
5587
5588 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5589 if (base_dsym_bfd == NULL)
5590 return NULL;
5591
5592 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5593 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5594 return dsym_bfd;
5595
5596 bfd_close (dsym_bfd);
5597 if (base_dsym_bfd != dsym_bfd)
5598 bfd_close (base_dsym_bfd);
5599
5600 return NULL;
5601}
5602
5603/* Return a BFD created from a dSYM file for ABFD.
5604 The caller is responsible for closing the returned BFD object, its
5605 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5606
5607static bfd *
5608bfd_mach_o_follow_dsym (bfd *abfd)
5609{
5610 char *dsym_filename;
5611 bfd_mach_o_uuid_command *uuid_cmd;
5612 bfd *dsym_bfd, *base_bfd = abfd;
5613 const char *base_basename;
5614
5615 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5616 return NULL;
5617
5618 if (abfd->my_archive)
5619 base_bfd = abfd->my_archive;
5620 /* BFD may have been opened from a stream. */
5621 if (base_bfd->filename == NULL)
5622 {
5623 bfd_set_error (bfd_error_invalid_operation);
5624 return NULL;
5625 }
5626 base_basename = lbasename (base_bfd->filename);
5627
5628 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5629 if (uuid_cmd == NULL)
5630 return NULL;
5631
5632 /* TODO: We assume the DWARF file has the same as the binary's.
5633 It seems apple's GDB checks all files in the dSYM bundle directory.
5634 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5635 */
5636 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5637 + strlen (dsym_subdir) + 1
5638 + strlen (base_basename) + 1);
5639 sprintf (dsym_filename, "%s%s/%s",
5640 base_bfd->filename, dsym_subdir, base_basename);
5641
5642 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5643 bfd_get_arch_info (abfd));
5644 if (dsym_bfd == NULL)
5645 free (dsym_filename);
5646
5647 return dsym_bfd;
5648}
5649
d9071b0c
TG		 5650bfd_boolean
5651bfd_mach_o_find_nearest_line (bfd *abfd,
d9071b0c 5652 asymbol **symbols,
fb167eb2 5653 asection *section,
d9071b0c
TG		 5654 bfd_vma offset,
5655 const char **filename_ptr,
5656 const char **functionname_ptr,
fb167eb2
AM		 5657 unsigned int *line_ptr,
5658 unsigned int *discriminator_ptr)
d9071b0c
TG		 5659{
5660 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2ca7691a 5661 if (mdata == NULL)
d9071b0c 5662 return FALSE;
2ca7691a
TG		 5663 switch (mdata->header.filetype)
5664 {
5665 case BFD_MACH_O_MH_OBJECT:
5666 break;
5667 case BFD_MACH_O_MH_EXECUTE:
5668 case BFD_MACH_O_MH_DYLIB:
5669 case BFD_MACH_O_MH_BUNDLE:
5670 case BFD_MACH_O_MH_KEXT_BUNDLE:
5671 if (mdata->dwarf2_find_line_info == NULL)
5672 {
5673 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5674 /* When we couldn't find dSYM for this binary, we look for
5675 the debug information in the binary itself. In this way,
5676 we won't try finding separated dSYM again because
5677 mdata->dwarf2_find_line_info will be filled. */
5678 if (! mdata->dsym_bfd)
5679 break;
5680 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5681 dwarf_debug_sections, symbols,
93ee1e36
AM		 5682 &mdata->dwarf2_find_line_info,
5683 FALSE))
2ca7691a
TG		 5684 return FALSE;
5685 }
5686 break;
5687 default:
5688 return FALSE;
5689 }
fb167eb2
AM		 5690 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5691 filename_ptr, functionname_ptr,
5692 line_ptr, discriminator_ptr,
5693 dwarf_debug_sections, 0,
5694 &mdata->dwarf2_find_line_info);
d9071b0c
TG		 5695}
5696
5697bfd_boolean
5698bfd_mach_o_close_and_cleanup (bfd *abfd)
5699{
5700 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5701 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
4434114c
TG		 5702 {
5703 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5704 bfd_mach_o_free_cached_info (abfd);
2ca7691a
TG		 5705 if (mdata->dsym_bfd != NULL)
5706 {
5707 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5708 char *dsym_filename = (char *)(fat_bfd
5709 ? fat_bfd->filename
5710 : mdata->dsym_bfd->filename);
5711 bfd_close (mdata->dsym_bfd);
5712 mdata->dsym_bfd = NULL;
5713 if (fat_bfd)
5714 bfd_close (fat_bfd);
5715 free (dsym_filename);
5716 }
4434114c 5717 }
dff55db0 5718
8c746b96
AM		 5719 if (bfd_get_format (abfd) == bfd_archive
5720 && abfd->xvec == &mach_o_fat_vec)
5721 return TRUE;
d9071b0c
TG		 5722 return _bfd_generic_close_and_cleanup (abfd);
5723}
5724
dff55db0
TG		 5725bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
5726{
5727 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5728 asection *asect;
5729 free (mdata->dyn_reloc_cache);
5730 mdata->dyn_reloc_cache = NULL;
5731 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5732 {
5733 free (asect->relocation);
5734 asect->relocation = NULL;
5735 }
5736
5737 return TRUE;
5738}
5739
68ffbac6 5740#define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
92bc0e80
TG		 5741#define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5742
5743#define bfd_mach_o_swap_reloc_in NULL
5744#define bfd_mach_o_swap_reloc_out NULL
b32e07d7 5745#define bfd_mach_o_print_thread NULL
a4551119 5746#define bfd_mach_o_tgt_seg_table NULL
ab76eeaf 5747#define bfd_mach_o_section_type_valid_for_tgt NULL
92bc0e80 5748
116c20d2
NC		 5749#define TARGET_NAME mach_o_be_vec
5750#define TARGET_STRING "mach-o-be"
42fa0891 5751#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 5752#define TARGET_PAGESIZE 1
116c20d2
NC		 5753#define TARGET_BIG_ENDIAN 1
5754#define TARGET_ARCHIVE 0
b93a1992 5755#define TARGET_PRIORITY 1
3af9a47b
NC		 5756#include "mach-o-target.c"
5757
5758#undef TARGET_NAME
5759#undef TARGET_STRING
42fa0891 5760#undef TARGET_ARCHITECTURE
4384b284 5761#undef TARGET_PAGESIZE
3af9a47b
NC		 5762#undef TARGET_BIG_ENDIAN
5763#undef TARGET_ARCHIVE
b93a1992 5764#undef TARGET_PRIORITY
3af9a47b 5765
116c20d2
NC		 5766#define TARGET_NAME mach_o_le_vec
5767#define TARGET_STRING "mach-o-le"
42fa0891 5768#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 5769#define TARGET_PAGESIZE 1
116c20d2
NC		 5770#define TARGET_BIG_ENDIAN 0
5771#define TARGET_ARCHIVE 0
b93a1992 5772#define TARGET_PRIORITY 1
3af9a47b
NC		 5773
5774#include "mach-o-target.c"
5775
5776#undef TARGET_NAME
5777#undef TARGET_STRING
42fa0891 5778#undef TARGET_ARCHITECTURE
4384b284 5779#undef TARGET_PAGESIZE
3af9a47b
NC		 5780#undef TARGET_BIG_ENDIAN
5781#undef TARGET_ARCHIVE
b93a1992 5782#undef TARGET_PRIORITY
3af9a47b 5783
8f95b6e4
TG		 5784/* Not yet handled: creating an archive. */
5785#define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
5786
5787/* Not used. */
5788#define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
5789#define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
5790#define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
5791#define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
5792#define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
5793#define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
5794#define bfd_mach_o_write_armap _bfd_noarchive_write_armap
5795#define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
15bbba8d 5796#define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
8f95b6e4
TG		 5797#define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
5798
116c20d2
NC		 5799#define TARGET_NAME mach_o_fat_vec
5800#define TARGET_STRING "mach-o-fat"
42fa0891 5801#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 5802#define TARGET_PAGESIZE 1
116c20d2
NC		 5803#define TARGET_BIG_ENDIAN 1
5804#define TARGET_ARCHIVE 1
b93a1992 5805#define TARGET_PRIORITY 0
3af9a47b
NC		 5806
5807#include "mach-o-target.c"
5808
5809#undef TARGET_NAME
5810#undef TARGET_STRING
42fa0891 5811#undef TARGET_ARCHITECTURE
4384b284 5812#undef TARGET_PAGESIZE
3af9a47b
NC		 5813#undef TARGET_BIG_ENDIAN
5814#undef TARGET_ARCHIVE
b93a1992 5815#undef TARGET_PRIORITY
GDB Binutils - Deliverables
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