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Handle Initial-Exec to Local-Exec for x32
[thirdparty/binutils-gdb.git] / bfd / mach-o.c
CommitLineData
3af9a47b 1/* Mach-O support for BFD.
b90efa5b 2 Copyright (C) 1999-2015 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;
896ca098
NC		 793 char * s_start;
794 char * s_end;
b2b62060
TG		 795 unsigned long count, i, j, n;
796 size_t size;
797 char *names;
798 char *nul_name;
896ca098 799 const char stub [] = "$stub";
b2b62060
TG		 800
801 *ret = NULL;
802
aeefa1c9 803 /* Stop now if no symbols or no indirect symbols. */
896ca098
NC		 804 if (dysymtab == NULL || dysymtab->nindirectsyms == 0
805 || symtab == NULL || symtab->symbols == NULL)
b2b62060
TG		 806 return 0;
807
aeefa1c9
TG		 808 /* We need to allocate a bfd symbol for every indirect symbol and to
809 allocate the memory for its name. */
b2b62060
TG		 810 count = dysymtab->nindirectsyms;
811 size = count * sizeof (asymbol) + 1;
812
813 for (j = 0; j < count; j++)
814 {
896ca098 815 const char * strng;
b2b62060 816 unsigned int isym = dysymtab->indirect_syms[j];
aeefa1c9
TG		 817
818 /* Some indirect symbols are anonymous. */
896ca098
NC		 819 if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name))
820 /* PR 17512: file: f5b8eeba. */
821 size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub);
b2b62060
TG		 822 }
823
896ca098
NC		 824 s_start = bfd_malloc (size);
825 s = *ret = (asymbol *) s_start;
b2b62060
TG		 826 if (s == NULL)
827 return -1;
828 names = (char *) (s + count);
829 nul_name = names;
830 *names++ = 0;
896ca098 831 s_end = s_start + size;
68ffbac6 832
b2b62060
TG		 833 n = 0;
834 for (i = 0; i < mdata->nsects; i++)
835 {
836 bfd_mach_o_section *sec = mdata->sections[i];
91d6fa6a 837 unsigned int first, last;
b2b62060
TG		 838 bfd_vma addr;
839 bfd_vma entry_size;
68ffbac6 840
b2b62060
TG		 841 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
842 {
843 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
844 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
845 case BFD_MACH_O_S_SYMBOL_STUBS:
aeefa1c9 846 /* Only these sections have indirect symbols. */
b2b62060
TG		 847 first = sec->reserved1;
848 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
849 addr = sec->addr;
850 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
896ca098
NC		 851
852 /* PR 17512: file: 08e15eec. */
853 if (first >= count || last >= count || first > last)
854 goto fail;
855
b2b62060
TG		 856 for (j = first; j < last; j++)
857 {
858 unsigned int isym = dysymtab->indirect_syms[j];
859
896ca098
NC		 860 /* PR 17512: file: 04d64d9b. */
861 if (((char *) s) + sizeof (* s) > s_end)
862 goto fail;
863
b2b62060
TG		 864 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
865 s->section = sec->bfdsection;
866 s->value = addr - sec->addr;
867 s->udata.p = NULL;
68ffbac6 868
b2b62060
TG		 869 if (isym < symtab->nsyms
870 && symtab->symbols[isym].symbol.name)
871 {
872 const char *sym = symtab->symbols[isym].symbol.name;
873 size_t len;
874
875 s->name = names;
876 len = strlen (sym);
896ca098
NC		 877 /* PR 17512: file: 47dfd4d2. */
878 if (names + len >= s_end)
879 goto fail;
b2b62060
TG		 880 memcpy (names, sym, len);
881 names += len;
896ca098
NC		 882 /* PR 17512: file: 18f340a4. */
883 if (names + sizeof (stub) >= s_end)
884 goto fail;
885 memcpy (names, stub, sizeof (stub));
886 names += sizeof (stub);
b2b62060
TG		 887 }
888 else
889 s->name = nul_name;
890
891 addr += entry_size;
892 s++;
893 n++;
894 }
895 break;
896 default:
897 break;
898 }
899 }
900
901 return n;
896ca098
NC		 902
903 fail:
904 free (s_start);
905 * ret = NULL;
906 return -1;
b2b62060
TG		 907}
908
154a1ee5 909void
116c20d2
NC		 910bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
911 asymbol *symbol,
912 symbol_info *ret)
3af9a47b
NC		 913{
914 bfd_symbol_info (symbol, ret);
915}
916
154a1ee5 917void
116c20d2 918bfd_mach_o_print_symbol (bfd *abfd,
91d6fa6a 919 void * afile,
116c20d2
NC		 920 asymbol *symbol,
921 bfd_print_symbol_type how)
3af9a47b
NC		 922{
923 FILE *file = (FILE *) afile;
15e1c58a 924 const char *name;
92bc0e80 925 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
3af9a47b
NC		 926
927 switch (how)
928 {
929 case bfd_print_symbol_name:
930 fprintf (file, "%s", symbol->name);
931 break;
932 default:
91d6fa6a 933 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
92bc0e80
TG		 934 if (asym->n_type & BFD_MACH_O_N_STAB)
935 name = bfd_get_stab_name (asym->n_type);
15e1c58a 936 else
92bc0e80 937 switch (asym->n_type & BFD_MACH_O_N_TYPE)
15e1c58a
TG		 938 {
939 case BFD_MACH_O_N_UNDF:
e0ce1005
TG		 940 if (symbol->value == 0)
941 name = "UND";
942 else
943 name = "COM";
15e1c58a
TG		 944 break;
945 case BFD_MACH_O_N_ABS:
946 name = "ABS";
947 break;
948 case BFD_MACH_O_N_INDR:
949 name = "INDR";
950 break;
951 case BFD_MACH_O_N_PBUD:
952 name = "PBUD";
953 break;
954 case BFD_MACH_O_N_SECT:
955 name = "SECT";
956 break;
957 default:
958 name = "???";
959 break;
960 }
961 if (name == NULL)
962 name = "";
92bc0e80
TG		 963 fprintf (file, " %02x %-6s %02x %04x",
964 asym->n_type, name, asym->n_sect, asym->n_desc);
965 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
966 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
e0ce1005 967 fprintf (file, " [%s]", symbol->section->name);
15e1c58a 968 fprintf (file, " %s", symbol->name);
3af9a47b
NC		 969 }
970}
971
972static void
116c20d2 973bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
0b2de107 974 bfd_mach_o_cpu_subtype msubtype,
116c20d2
NC		 975 enum bfd_architecture *type,
976 unsigned long *subtype)
3af9a47b
NC		 977{
978 *subtype = bfd_arch_unknown;
979
980 switch (mtype)
981 {
0b2de107
TG		 982 case BFD_MACH_O_CPU_TYPE_VAX:
983 *type = bfd_arch_vax;
984 break;
985 case BFD_MACH_O_CPU_TYPE_MC680x0:
986 *type = bfd_arch_m68k;
987 break;
1e8a024a
TG		 988 case BFD_MACH_O_CPU_TYPE_I386:
989 *type = bfd_arch_i386;
990 *subtype = bfd_mach_i386_i386;
991 break;
992 case BFD_MACH_O_CPU_TYPE_X86_64:
993 *type = bfd_arch_i386;
994 *subtype = bfd_mach_x86_64;
995 break;
0b2de107
TG		 996 case BFD_MACH_O_CPU_TYPE_MIPS:
997 *type = bfd_arch_mips;
998 break;
999 case BFD_MACH_O_CPU_TYPE_MC98000:
1000 *type = bfd_arch_m98k;
1001 break;
1002 case BFD_MACH_O_CPU_TYPE_HPPA:
1003 *type = bfd_arch_hppa;
1004 break;
1005 case BFD_MACH_O_CPU_TYPE_ARM:
1006 *type = bfd_arch_arm;
1007 switch (msubtype)
1008 {
1009 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
1010 *subtype = bfd_mach_arm_4T;
1011 break;
1012 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
1013 *subtype = bfd_mach_arm_4T; /* Best fit ? */
1014 break;
1015 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
1016 *subtype = bfd_mach_arm_5TE;
1017 break;
1018 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
1019 *subtype = bfd_mach_arm_XScale;
1020 break;
1021 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
1022 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
1023 break;
1024 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
1025 default:
1026 break;
1027 }
1028 break;
1029 case BFD_MACH_O_CPU_TYPE_MC88000:
1030 *type = bfd_arch_m88k;
1031 break;
1e8a024a
TG		 1032 case BFD_MACH_O_CPU_TYPE_SPARC:
1033 *type = bfd_arch_sparc;
1034 *subtype = bfd_mach_sparc;
1035 break;
0b2de107
TG		 1036 case BFD_MACH_O_CPU_TYPE_I860:
1037 *type = bfd_arch_i860;
1038 break;
1039 case BFD_MACH_O_CPU_TYPE_ALPHA:
1040 *type = bfd_arch_alpha;
1041 break;
1e8a024a
TG		 1042 case BFD_MACH_O_CPU_TYPE_POWERPC:
1043 *type = bfd_arch_powerpc;
c2f09c75 1044 *subtype = bfd_mach_ppc;
1e8a024a
TG		 1045 break;
1046 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1047 *type = bfd_arch_powerpc;
c2f09c75 1048 *subtype = bfd_mach_ppc64;
1e8a024a 1049 break;
d8028530
TG		 1050 case BFD_MACH_O_CPU_TYPE_ARM64:
1051 *type = bfd_arch_aarch64;
1052 *subtype = bfd_mach_aarch64;
1053 break;
3af9a47b 1054 default:
1e8a024a
TG		 1055 *type = bfd_arch_unknown;
1056 break;
3af9a47b
NC		 1057 }
1058}
a95a4550 1059
c9ffd2ea
TG		 1060/* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1061 number of bytes written or -1 in case of error. */
1062
1063static int
1064bfd_mach_o_pad4 (bfd *abfd, unsigned int len)
1065{
1066 if (len % 4 != 0)
1067 {
1068 char pad[4] = {0,0,0,0};
1069 unsigned int padlen = 4 - (len % 4);
1070
1071 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1072 return -1;
1073
1074 return padlen;
1075 }
1076 else
1077 return 0;
1078}
1079
1080/* Likewise, but for a command. */
1081
1082static int
1083bfd_mach_o_pad_command (bfd *abfd, unsigned int len)
1084{
1085 unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4;
1086
1087 if (len % align != 0)
1088 {
1089 char pad[8] = {0};
1090 unsigned int padlen = align - (len % align);
1091
1092 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1093 return -1;
1094
1095 return padlen;
1096 }
1097 else
1098 return 0;
1099}
1100
154a1ee5 1101static bfd_boolean
116c20d2
NC		 1102bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
1103{
46d1c23b 1104 struct mach_o_header_external raw;
1e8a024a
TG		 1105 unsigned int size;
1106
c2f09c75 1107 size = mach_o_wide_p (header) ?
154a1ee5 1108 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
116c20d2 1109
46d1c23b
TG		 1110 bfd_h_put_32 (abfd, header->magic, raw.magic);
1111 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
1112 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
1113 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
1114 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
1115 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
1116 bfd_h_put_32 (abfd, header->flags, raw.flags);
116c20d2 1117
c2f09c75 1118 if (mach_o_wide_p (header))
46d1c23b 1119 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1e8a024a 1120
c2f09c75 1121 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 1122 || bfd_bwrite (&raw, size, abfd) != size)
154a1ee5 1123 return FALSE;
116c20d2 1124
154a1ee5 1125 return TRUE;
116c20d2
NC		 1126}
1127
452216ab 1128static bfd_boolean
ab273af8 1129bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
116c20d2
NC		 1130{
1131 bfd_mach_o_thread_command *cmd = &command->command.thread;
1132 unsigned int i;
46d1c23b 1133 struct mach_o_thread_command_external raw;
92bc0e80 1134 unsigned int offset;
116c20d2
NC		 1135
1136 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1137 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1138
c9ffd2ea 1139 offset = BFD_MACH_O_LC_SIZE;
116c20d2
NC		 1140 for (i = 0; i < cmd->nflavours; i++)
1141 {
1142 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
46d1c23b
TG		 1143 BFD_ASSERT (cmd->flavours[i].offset ==
1144 (command->offset + offset + BFD_MACH_O_LC_SIZE));
116c20d2 1145
46d1c23b
TG		 1146 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
1147 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
116c20d2 1148
c2f09c75 1149 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 1150 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1151 return FALSE;
116c20d2 1152
46d1c23b 1153 offset += cmd->flavours[i].size + sizeof (raw);
116c20d2
NC		 1154 }
1155
452216ab 1156 return TRUE;
116c20d2
NC		 1157}
1158
c9ffd2ea
TG		 1159static bfd_boolean
1160bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
1161{
1162 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1163 struct mach_o_str_command_external raw;
1164 unsigned int namelen;
1165
1166 bfd_h_put_32 (abfd, cmd->name_offset, raw.str);
1167
1168 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1169 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1170 return FALSE;
1171
1172 namelen = strlen (cmd->name_str) + 1;
1173 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1174 return FALSE;
1175
1176 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1177 return FALSE;
1178
1179 return TRUE;
1180}
1181
1182static bfd_boolean
1183bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1184{
1185 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1186 struct mach_o_dylib_command_external raw;
1187 unsigned int namelen;
1188
1189 bfd_h_put_32 (abfd, cmd->name_offset, raw.name);
1190 bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp);
1191 bfd_h_put_32 (abfd, cmd->current_version, raw.current_version);
1192 bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version);
1193
1194 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1195 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1196 return FALSE;
1197
1198 namelen = strlen (cmd->name_str) + 1;
1199 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1200 return FALSE;
1201
1202 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1203 return FALSE;
1204
1205 return TRUE;
1206}
1207
1208static bfd_boolean
1209bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
1210{
1211 bfd_mach_o_main_command *cmd = &command->command.main;
1212 struct mach_o_entry_point_command_external raw;
1213
1214 bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff);
1215 bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize);
1216
1217 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1218 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1219 return FALSE;
1220
1221 return TRUE;
1222}
1223
1224static bfd_boolean
1225bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
1226{
1227 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
1228 struct mach_o_dyld_info_command_external raw;
1229
1230 bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off);
1231 bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size);
1232 bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off);
1233 bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size);
1234 bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off);
1235 bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size);
1236 bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off);
1237 bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size);
1238 bfd_h_put_32 (abfd, cmd->export_off, raw.export_off);
1239 bfd_h_put_32 (abfd, cmd->export_size, raw.export_size);
1240
1241 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1242 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1243 return FALSE;
1244
1245 if (cmd->rebase_size != 0)
1246 if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
1247 || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
1248 cmd->rebase_size))
1249 return FALSE;
1250
1251 if (cmd->bind_size != 0)
1252 if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
1253 || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
1254 cmd->bind_size))
1255 return FALSE;
1256
1257 if (cmd->weak_bind_size != 0)
1258 if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
1259 || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
1260 cmd->weak_bind_size))
1261 return FALSE;
1262
1263 if (cmd->lazy_bind_size != 0)
1264 if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
1265 || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
1266 cmd->lazy_bind_size))
1267 return FALSE;
1268
1269 if (cmd->export_size != 0)
1270 if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
1271 || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
1272 cmd->export_size))
1273 return FALSE;
1274
1275 return TRUE;
1276}
1277
92bc0e80
TG		 1278long
1279bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
1280 asection *asect)
1281{
1282 return (asect->reloc_count + 1) * sizeof (arelent *);
1283}
1284
19765f52
IS		 1285/* In addition to the need to byte-swap the symbol number, the bit positions
1286 of the fields in the relocation information vary per target endian-ness. */
1287
1288static void
1289bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel,
1290 unsigned char *fields)
1291{
1292 unsigned char info = fields[3];
1293
1294 if (bfd_big_endian (abfd))
1295 {
1296 rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2];
1297 rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1298 rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0;
68ffbac6 1299 rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT)
19765f52
IS		 1300 & BFD_MACH_O_LENGTH_MASK;
1301 rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0;
1302 }
1303 else
1304 {
1305 rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0];
1306 rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1307 rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0;
68ffbac6 1308 rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT)
19765f52
IS		 1309 & BFD_MACH_O_LENGTH_MASK;
1310 rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0;
1311 }
1312}
1313
b32e07d7 1314static int
46d1c23b
TG		 1315bfd_mach_o_canonicalize_one_reloc (bfd *abfd,
1316 struct mach_o_reloc_info_external *raw,
b32e07d7 1317 arelent *res, asymbol **syms)
92bc0e80 1318{
046b007d 1319 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
92bc0e80 1320 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
b32e07d7
TG		 1321 bfd_mach_o_reloc_info reloc;
1322 bfd_vma addr;
b32e07d7
TG		 1323 asymbol **sym;
1324
46d1c23b 1325 addr = bfd_get_32 (abfd, raw->r_address);
19765f52
IS		 1326 res->sym_ptr_ptr = NULL;
1327 res->addend = 0;
f4716ee2 1328
b32e07d7
TG		 1329 if (addr & BFD_MACH_O_SR_SCATTERED)
1330 {
1331 unsigned int j;
19765f52 1332 bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum);
b32e07d7 1333
19765f52
IS		 1334 /* Scattered relocation, can't be extern. */
1335 reloc.r_scattered = 1;
1336 reloc.r_extern = 0;
1337
1338 /* Extract section and offset from r_value (symnum). */
1339 reloc.r_value = symnum;
1340 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1341 end of the data for the section (e.g. in a calculation of section
1342 data length). At present, the symbol will end up associated with
1343 the following section or, if it falls within alignment padding, as
1344 null - which will assert later. */
b32e07d7
TG		 1345 for (j = 0; j < mdata->nsects; j++)
1346 {
1347 bfd_mach_o_section *sect = mdata->sections[j];
1348 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1349 {
1350 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1351 res->addend = symnum - sect->addr;
1352 break;
1353 }
1354 }
19765f52
IS		 1355
1356 /* Extract the info and address fields from r_address. */
b32e07d7
TG		 1357 reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1358 reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1359 reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL;
19765f52
IS		 1360 reloc.r_address = BFD_MACH_O_GET_SR_TYPE (addr);
1361 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
b32e07d7
TG		 1362 }
1363 else
1364 {
19765f52 1365 unsigned int num;
f4716ee2 1366
19765f52
IS		 1367 /* Non-scattered relocation. */
1368 reloc.r_scattered = 0;
f4716ee2 1369
19765f52
IS		 1370 /* The value and info fields have to be extracted dependent on target
1371 endian-ness. */
1372 bfd_mach_o_swap_in_non_scattered_reloc (abfd, &reloc, raw->r_symbolnum);
1373 num = reloc.r_value;
1374
1375 if (reloc.r_extern)
f4716ee2 1376 {
a1165289 1377 /* PR 17512: file: 8396-1185-0.004. */
033539e2 1378 if (bfd_get_symcount (abfd) > 0 && num > bfd_get_symcount (abfd))
a1165289 1379 sym = bfd_und_section_ptr->symbol_ptr_ptr;
5860e3f8
NC		 1380 else if (syms == NULL)
1381 sym = bfd_und_section_ptr->symbol_ptr_ptr;
a1165289
NC		 1382 else
1383 /* An external symbol number. */
1384 sym = syms + num;
f4716ee2 1385 }
23d72939 1386 else if (num == 0x00ffffff || num == 0)
f4716ee2
TG		 1387 {
1388 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1389 is generic code, we don't know wether this is really a PAIR.
1390 This value is almost certainly not a valid section number, hence
1391 this specific case to avoid an assertion failure.
1392 Target specific swap_reloc_in routine should adjust that. */
1393 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1394 }
1395 else
b32e07d7 1396 {
0a9d414a 1397 /* PR 17512: file: 006-2964-0.004. */
033539e2 1398 if (num > mdata->nsects)
0a9d414a
NC		 1399 return -1;
1400
f4716ee2 1401 /* A section number. */
b32e07d7 1402 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1523fa24
TG		 1403 /* For a symbol defined in section S, the addend (stored in the
1404 binary) contains the address of the section. To comply with
19765f52 1405 bfd convention, subtract the section address.
1523fa24
TG		 1406 Use the address from the header, so that the user can modify
1407 the vma of the section. */
1408 res->addend = -mdata->sections[num - 1]->addr;
19765f52 1409 }
f4716ee2
TG		 1410 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1411 in the lower 16bits of the address value. So we have to find the
1412 'symbol' from the preceding reloc. We do this even though the
1413 section symbol is probably not needed here, because NULL symbol
1414 values cause an assert in generic BFD code. This must be done in
1415 the PPC swap_reloc_in routine. */
b32e07d7 1416 res->sym_ptr_ptr = sym;
f4716ee2 1417
19765f52
IS		 1418 /* The 'address' is just r_address.
1419 ??? maybe this should be masked with 0xffffff for safety. */
1420 res->address = addr;
1421 reloc.r_address = addr;
b32e07d7 1422 }
f4716ee2
TG		 1423
1424 /* We have set up a reloc with all the information present, so the swapper
1425 can modify address, value and addend fields, if necessary, to convey
1426 information in the generic BFD reloc that is mach-o specific. */
19765f52 1427
b32e07d7
TG		 1428 if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc))
1429 return -1;
033539e2 1430
b32e07d7
TG		 1431 return 0;
1432}
1433
1434static int
1435bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1436 unsigned long count,
1437 arelent *res, asymbol **syms)
1438{
92bc0e80 1439 unsigned long i;
46d1c23b 1440 struct mach_o_reloc_info_external *native_relocs;
92bc0e80
TG		 1441 bfd_size_type native_size;
1442
92bc0e80 1443 /* Allocate and read relocs. */
b32e07d7 1444 native_size = count * BFD_MACH_O_RELENT_SIZE;
033539e2 1445
46d1c23b
TG		 1446 native_relocs =
1447 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
92bc0e80
TG		 1448 if (native_relocs == NULL)
1449 return -1;
1450
b32e07d7 1451 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
92bc0e80 1452 || bfd_bread (native_relocs, native_size, abfd) != native_size)
b32e07d7
TG		 1453 goto err;
1454
1455 for (i = 0; i < count; i++)
92bc0e80 1456 {
46d1c23b
TG		 1457 if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i],
1458 &res[i], syms) < 0)
b32e07d7 1459 goto err;
92bc0e80 1460 }
b32e07d7
TG		 1461 free (native_relocs);
1462 return i;
1463 err:
1464 free (native_relocs);
1465 return -1;
1466}
1467
1468long
1469bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1470 arelent **rels, asymbol **syms)
1471{
1472 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1473 unsigned long i;
1474 arelent *res;
1475
1476 if (asect->reloc_count == 0)
1477 return 0;
1478
1479 /* No need to go further if we don't know how to read relocs. */
1480 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1481 return 0;
92bc0e80 1482
dff55db0 1483 if (asect->relocation == NULL)
92bc0e80 1484 {
dff55db0
TG		 1485 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1486 if (res == NULL)
1487 return -1;
1488
1489 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1490 asect->reloc_count, res, syms) < 0)
1491 {
1492 free (res);
1493 return -1;
1494 }
1495 asect->relocation = res;
92bc0e80
TG		 1496 }
1497
dff55db0 1498 res = asect->relocation;
92bc0e80 1499 for (i = 0; i < asect->reloc_count; i++)
b32e07d7
TG		 1500 rels[i] = &res[i];
1501 rels[i] = NULL;
92bc0e80 1502
b32e07d7
TG		 1503 return i;
1504}
92bc0e80 1505
b32e07d7
TG		 1506long
1507bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1508{
1509 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
92bc0e80 1510
b32e07d7
TG		 1511 if (mdata->dysymtab == NULL)
1512 return 1;
dff55db0 1513 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
b32e07d7
TG		 1514 * sizeof (arelent *);
1515}
92bc0e80 1516
b32e07d7
TG		 1517long
1518bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1519 struct bfd_symbol **syms)
1520{
1521 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1522 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1523 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1524 unsigned long i;
1525 arelent *res;
1526
1527 if (dysymtab == NULL)
1528 return 0;
1529 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1530 return 0;
1531
1532 /* No need to go further if we don't know how to read relocs. */
1533 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1534 return 0;
1535
dff55db0 1536 if (mdata->dyn_reloc_cache == NULL)
b32e07d7 1537 {
dff55db0
TG		 1538 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1539 * sizeof (arelent));
1540 if (res == NULL)
1541 return -1;
b32e07d7 1542
dff55db0
TG		 1543 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1544 dysymtab->nextrel, res, syms) < 0)
1545 {
1546 free (res);
1547 return -1;
1548 }
1549
1550 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1551 dysymtab->nlocrel,
1552 res + dysymtab->nextrel, syms) < 0)
1553 {
1554 free (res);
1555 return -1;
1556 }
1557
1558 mdata->dyn_reloc_cache = res;
b32e07d7
TG		 1559 }
1560
dff55db0 1561 res = mdata->dyn_reloc_cache;
b32e07d7
TG		 1562 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1563 rels[i] = &res[i];
1564 rels[i] = NULL;
92bc0e80
TG		 1565 return i;
1566}
1567
19765f52
IS		 1568/* In addition to the need to byte-swap the symbol number, the bit positions
1569 of the fields in the relocation information vary per target endian-ness. */
1570
1571static void
1572bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
1573 bfd_mach_o_reloc_info *rel)
1574{
1575 unsigned char info = 0;
1576
1577 BFD_ASSERT (rel->r_type <= 15);
1578 BFD_ASSERT (rel->r_length <= 3);
1579
1580 if (bfd_big_endian (abfd))
1581 {
1582 fields[0] = (rel->r_value >> 16) & 0xff;
1583 fields[1] = (rel->r_value >> 8) & 0xff;
1584 fields[2] = rel->r_value & 0xff;
1585 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1586 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1587 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1588 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1589 }
1590 else
1591 {
1592 fields[2] = (rel->r_value >> 16) & 0xff;
1593 fields[1] = (rel->r_value >> 8) & 0xff;
1594 fields[0] = rel->r_value & 0xff;
1595 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1596 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1597 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1598 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1599 }
1600 fields[3] = info;
1601}
1602
92bc0e80 1603static bfd_boolean
ab273af8 1604bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
92bc0e80 1605{
92bc0e80
TG		 1606 unsigned int i;
1607 arelent **entries;
1608 asection *sec;
1609 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1610
1611 sec = section->bfdsection;
1612 if (sec->reloc_count == 0)
1613 return TRUE;
1614
1615 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1616 return TRUE;
1617
92bc0e80
TG		 1618 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1619 return FALSE;
1620
1621 /* Convert and write. */
1622 entries = section->bfdsection->orelocation;
1623 for (i = 0; i < section->nreloc; i++)
1624 {
1625 arelent *rel = entries[i];
46d1c23b 1626 struct mach_o_reloc_info_external raw;
92bc0e80
TG		 1627 bfd_mach_o_reloc_info info, *pinfo = &info;
1628
1629 /* Convert relocation to an intermediate representation. */
1630 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1631 return FALSE;
1632
1633 /* Lower the relocation info. */
1634 if (pinfo->r_scattered)
1635 {
1636 unsigned long v;
1637
1638 v = BFD_MACH_O_SR_SCATTERED
1639 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
ca148c5a
TG		 1640 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1641 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1642 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
46d1c23b
TG		 1643 /* Note: scattered relocs have field in reverse order... */
1644 bfd_put_32 (abfd, v, raw.r_address);
1645 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
92bc0e80
TG		 1646 }
1647 else
1648 {
46d1c23b 1649 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
19765f52
IS		 1650 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
1651 pinfo);
92bc0e80
TG		 1652 }
1653
46d1c23b 1654 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
92bc0e80
TG		 1655 != BFD_MACH_O_RELENT_SIZE)
1656 return FALSE;
1657 }
1658 return TRUE;
1659}
1660
452216ab 1661static bfd_boolean
ab273af8 1662bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1663{
46d1c23b
TG		 1664 struct mach_o_section_32_external raw;
1665
1666 memcpy (raw.sectname, section->sectname, 16);
72b5104c 1667 memcpy (raw.segname, section->segname, 16);
46d1c23b
TG		 1668 bfd_h_put_32 (abfd, section->addr, raw.addr);
1669 bfd_h_put_32 (abfd, section->size, raw.size);
1670 bfd_h_put_32 (abfd, section->offset, raw.offset);
1671 bfd_h_put_32 (abfd, section->align, raw.align);
1672 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1673 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1674 bfd_h_put_32 (abfd, section->flags, raw.flags);
1675 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1676 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1677
1678 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
92bc0e80 1679 != BFD_MACH_O_SECTION_SIZE)
452216ab 1680 return FALSE;
116c20d2 1681
452216ab 1682 return TRUE;
116c20d2
NC		 1683}
1684
452216ab 1685static bfd_boolean
ab273af8 1686bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1687{
46d1c23b
TG		 1688 struct mach_o_section_64_external raw;
1689
1690 memcpy (raw.sectname, section->sectname, 16);
1691 memcpy (raw.segname, section->segname, 16);
1692 bfd_h_put_64 (abfd, section->addr, raw.addr);
1693 bfd_h_put_64 (abfd, section->size, raw.size);
1694 bfd_h_put_32 (abfd, section->offset, raw.offset);
1695 bfd_h_put_32 (abfd, section->align, raw.align);
1696 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1697 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1698 bfd_h_put_32 (abfd, section->flags, raw.flags);
1699 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1700 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1701 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1702
1703 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
92bc0e80 1704 != BFD_MACH_O_SECTION_64_SIZE)
452216ab 1705 return FALSE;
116c20d2 1706
452216ab 1707 return TRUE;
1e8a024a
TG		 1708}
1709
452216ab 1710static bfd_boolean
ab273af8 1711bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1712{
46d1c23b 1713 struct mach_o_segment_command_32_external raw;
1e8a024a 1714 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1715 bfd_mach_o_section *sec;
1e8a024a 1716
c2f09c75
TG		 1717 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1718
f1bde64c
TG		 1719 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1720 if (!bfd_mach_o_write_relocs (abfd, sec))
452216ab 1721 return FALSE;
c2f09c75 1722
46d1c23b
TG		 1723 memcpy (raw.segname, seg->segname, 16);
1724 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1725 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1726 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1727 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1728 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1729 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1730 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1731 bfd_h_put_32 (abfd, seg->flags, raw.flags);
68ffbac6 1732
46d1c23b
TG		 1733 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1734 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1735 return FALSE;
1e8a024a 1736
f1bde64c 1737 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
452216ab
TG		 1738 if (!bfd_mach_o_write_section_32 (abfd, sec))
1739 return FALSE;
1e8a024a 1740
452216ab 1741 return TRUE;
116c20d2
NC		 1742}
1743
452216ab 1744static bfd_boolean
ab273af8 1745bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1746{
46d1c23b 1747 struct mach_o_segment_command_64_external raw;
c2f09c75 1748 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1749 bfd_mach_o_section *sec;
c2f09c75
TG		 1750
1751 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1752
f1bde64c
TG		 1753 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1754 if (!bfd_mach_o_write_relocs (abfd, sec))
452216ab 1755 return FALSE;
c2f09c75 1756
46d1c23b
TG		 1757 memcpy (raw.segname, seg->segname, 16);
1758 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1759 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1760 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1761 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1762 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1763 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1764 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1765 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1766
1767 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1768 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1769 return FALSE;
c2f09c75 1770
f1bde64c 1771 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
452216ab
TG		 1772 if (!bfd_mach_o_write_section_64 (abfd, sec))
1773 return FALSE;
c2f09c75 1774
452216ab 1775 return TRUE;
1e8a024a
TG		 1776}
1777
c2f09c75 1778static bfd_boolean
c9ffd2ea 1779bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
116c20d2 1780{
046b007d 1781 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
116c20d2 1782 unsigned long i;
c2f09c75 1783 unsigned int wide = bfd_mach_o_wide_p (abfd);
c2f09c75
TG		 1784 struct bfd_strtab_hash *strtab;
1785 asymbol **symbols = bfd_get_outsymbols (abfd);
c9ffd2ea 1786 int padlen;
c2f09c75
TG		 1787
1788 /* Write the symbols first. */
1789 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1790 return FALSE;
1791
c2f09c75
TG		 1792 strtab = _bfd_stringtab_init ();
1793 if (strtab == NULL)
1794 return FALSE;
116c20d2 1795
a4551119
TG		 1796 if (sym->nsyms > 0)
1797 /* Although we don't strictly need to do this, for compatibility with
1798 Darwin system tools, actually output an empty string for the index
1799 0 entry. */
1800 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1801
116c20d2
NC		 1802 for (i = 0; i < sym->nsyms; i++)
1803 {
91d6fa6a 1804 bfd_size_type str_index;
92bc0e80 1805 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
68ffbac6 1806
92bc0e80 1807 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
7f307238 1808 /* An index of 0 always means the empty string. */
91d6fa6a 1809 str_index = 0;
c2f09c75
TG		 1810 else
1811 {
91d6fa6a 1812 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
7f307238 1813
91d6fa6a 1814 if (str_index == (bfd_size_type) -1)
c2f09c75
TG		 1815 goto err;
1816 }
46d1c23b 1817
c2f09c75 1818 if (wide)
46d1c23b
TG		 1819 {
1820 struct mach_o_nlist_64_external raw;
1821
1822 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1823 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1824 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1825 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1826 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1827 raw.n_value);
1828
1829 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1830 goto err;
1831 }
c2f09c75 1832 else
46d1c23b
TG		 1833 {
1834 struct mach_o_nlist_external raw;
116c20d2 1835
46d1c23b
TG		 1836 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1837 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1838 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1839 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1840 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1841 raw.n_value);
1842
1843 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1844 goto err;
1845 }
116c20d2 1846 }
c2f09c75 1847 sym->strsize = _bfd_stringtab_size (strtab);
92bc0e80
TG		 1848 sym->stroff = mdata->filelen;
1849 mdata->filelen += sym->strsize;
116c20d2 1850
c9ffd2ea
TG		 1851 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
1852 return FALSE;
1853
c2f09c75
TG		 1854 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
1855 goto err;
1856 _bfd_stringtab_free (strtab);
116c20d2 1857
c9ffd2ea
TG		 1858 /* Pad string table. */
1859 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
1860 if (padlen < 0)
1861 return FALSE;
1862 mdata->filelen += padlen;
1863 sym->strsize += padlen;
116c20d2 1864
c2f09c75 1865 return TRUE;
116c20d2 1866
c2f09c75
TG		 1867 err:
1868 _bfd_stringtab_free (strtab);
1869 return FALSE;
116c20d2
NC		 1870}
1871
c9ffd2ea
TG		 1872static bfd_boolean
1873bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1874{
1875 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1876 struct mach_o_symtab_command_external raw;
1877
1878 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1879
1880 /* The command. */
1881 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1882 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1883 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1884 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1885
1886 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1887 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1888 return FALSE;
1889
1890 return TRUE;
1891}
1892
1893/* Count the number of indirect symbols in the image.
1894 Requires that the sections are in their final order. */
1895
1896static unsigned int
1897bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
1898{
1899 unsigned int i;
1900 unsigned int nisyms = 0;
1901
1902 for (i = 0; i < mdata->nsects; ++i)
1903 {
1904 bfd_mach_o_section *sec = mdata->sections[i];
1905
1906 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1907 {
1908 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1909 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1910 case BFD_MACH_O_S_SYMBOL_STUBS:
1911 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1912 break;
1913 default:
1914 break;
1915 }
1916 }
1917 return nisyms;
1918}
1919
1920/* Create the dysymtab. */
1921
1922static bfd_boolean
1923bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
1924{
1925 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1926
1927 /* TODO:
1928 We are not going to try and fill these in yet and, moreover, we are
1929 going to bail if they are already set. */
1930 if (cmd->nmodtab != 0
1931 || cmd->ntoc != 0
1932 || cmd->nextrefsyms != 0)
1933 {
1934 (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet"
1935 " implemented for dysymtab commands."));
1936 return FALSE;
1937 }
1938
1939 cmd->ilocalsym = 0;
1940
1941 if (bfd_get_symcount (abfd) > 0)
1942 {
1943 asymbol **symbols = bfd_get_outsymbols (abfd);
1944 unsigned long i;
1945
1946 /* Count the number of each kind of symbol. */
1947 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1948 {
1949 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1950 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
1951 break;
1952 }
1953 cmd->nlocalsym = i;
1954 cmd->iextdefsym = i;
1955 for (; i < bfd_get_symcount (abfd); ++i)
1956 {
1957 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1958 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
1959 break;
1960 }
1961 cmd->nextdefsym = i - cmd->nlocalsym;
1962 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
1963 cmd->nundefsym = bfd_get_symcount (abfd)
1964 - cmd->nlocalsym
1965 - cmd->nextdefsym;
1966 }
1967 else
1968 {
1969 cmd->nlocalsym = 0;
1970 cmd->iextdefsym = 0;
1971 cmd->nextdefsym = 0;
1972 cmd->iundefsym = 0;
1973 cmd->nundefsym = 0;
1974 }
1975
1976 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
1977 if (cmd->nindirectsyms > 0)
1978 {
1979 unsigned i;
1980 unsigned n;
1981
1982 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
1983 cmd->indirectsymoff = mdata->filelen;
1984 mdata->filelen += cmd->nindirectsyms * 4;
1985
1986 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
1987 if (cmd->indirect_syms == NULL)
1988 return FALSE;
1989
1990 n = 0;
1991 for (i = 0; i < mdata->nsects; ++i)
1992 {
1993 bfd_mach_o_section *sec = mdata->sections[i];
1994
1995 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1996 {
1997 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1998 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1999 case BFD_MACH_O_S_SYMBOL_STUBS:
2000 {
2001 unsigned j, num;
2002 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
2003
2004 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2005 if (isyms == NULL || num == 0)
2006 break;
2007 /* Record the starting index in the reserved1 field. */
2008 sec->reserved1 = n;
2009 for (j = 0; j < num; j++, n++)
2010 {
2011 if (isyms[j] == NULL)
2012 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
2013 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
2014 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
2015 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
2016 | BFD_MACH_O_INDIRECT_SYM_ABS;
2017 else
2018 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
2019 }
2020 }
2021 break;
2022 default:
2023 break;
2024 }
2025 }
2026 }
2027
2028 return TRUE;
2029}
2030
7f307238
IS		 2031/* Write a dysymtab command.
2032 TODO: Possibly coalesce writes of smaller objects. */
2033
2034static bfd_boolean
2035bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2036{
2037 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2038
2039 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2040
2041 if (cmd->nmodtab != 0)
2042 {
2043 unsigned int i;
2044
2045 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2046 return FALSE;
2047
2048 for (i = 0; i < cmd->nmodtab; i++)
2049 {
2050 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2051 unsigned int iinit;
2052 unsigned int ninit;
2053
2054 iinit = module->iinit & 0xffff;
2055 iinit |= ((module->iterm & 0xffff) << 16);
2056
2057 ninit = module->ninit & 0xffff;
2058 ninit |= ((module->nterm & 0xffff) << 16);
2059
2060 if (bfd_mach_o_wide_p (abfd))
2061 {
2062 struct mach_o_dylib_module_64_external w;
2063
2064 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2065 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2066 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2067 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2068 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2069 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2070 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2071 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2072 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2073 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2074 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2075 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2076 &w.objc_module_info_addr);
2077 bfd_h_put_32 (abfd, module->objc_module_info_size,
2078 &w.objc_module_info_size);
2079
2080 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2081 return FALSE;
2082 }
2083 else
2084 {
2085 struct mach_o_dylib_module_external n;
2086
2087 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2088 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2089 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2090 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2091 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2092 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2093 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2094 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2095 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2096 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2097 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2098 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2099 &n.objc_module_info_addr);
2100 bfd_h_put_32 (abfd, module->objc_module_info_size,
2101 &n.objc_module_info_size);
2102
2103 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2104 return FALSE;
2105 }
2106 }
2107 }
2108
2109 if (cmd->ntoc != 0)
2110 {
2111 unsigned int i;
2112
2113 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2114 return FALSE;
2115
2116 for (i = 0; i < cmd->ntoc; i++)
2117 {
2118 struct mach_o_dylib_table_of_contents_external raw;
2119 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2120
2121 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2122 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2123
2124 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2125 return FALSE;
2126 }
2127 }
68ffbac6 2128
7f307238
IS		 2129 if (cmd->nindirectsyms > 0)
2130 {
2131 unsigned int i;
2132
2133 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2134 return FALSE;
2135
2136 for (i = 0; i < cmd->nindirectsyms; ++i)
2137 {
2138 unsigned char raw[4];
2139
2140 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2141 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2142 return FALSE;
68ffbac6 2143 }
7f307238
IS		 2144 }
2145
2146 if (cmd->nextrefsyms != 0)
2147 {
2148 unsigned int i;
2149
2150 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2151 return FALSE;
2152
2153 for (i = 0; i < cmd->nextrefsyms; i++)
2154 {
2155 unsigned long v;
2156 unsigned char raw[4];
2157 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2158
2159 /* Fields isym and flags are written as bit-fields, thus we need
2160 a specific processing for endianness. */
2161
2162 if (bfd_big_endian (abfd))
2163 {
2164 v = ((ref->isym & 0xffffff) << 8);
2165 v |= ref->flags & 0xff;
2166 }
2167 else
2168 {
2169 v = ref->isym & 0xffffff;
2170 v |= ((ref->flags & 0xff) << 24);
2171 }
2172
2173 bfd_h_put_32 (abfd, v, raw);
2174 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2175 return FALSE;
2176 }
2177 }
2178
2179 /* The command. */
2180 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2181 return FALSE;
2182 else
2183 {
2184 struct mach_o_dysymtab_command_external raw;
2185
2186 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2187 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2188 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2189 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2190 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2191 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2192 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2193 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2194 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2195 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2196 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2197 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2198 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2199 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2200 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2201 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2202 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2203 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2204
2205 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2206 return FALSE;
2207 }
2208
2209 return TRUE;
2210}
2211
2212static unsigned
b22161d6 2213bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
7f307238 2214{
b22161d6 2215 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
68588f95
IS		 2216
2217 /* Just leave debug symbols where they are (pretend they are local, and
2218 then they will just be sorted on position). */
b22161d6 2219 if (s->n_type & BFD_MACH_O_N_STAB)
68588f95
IS		 2220 return 0;
2221
7f307238 2222 /* Local (we should never see an undefined local AFAICT). */
b22161d6 2223 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
7f307238
IS		 2224 return 0;
2225
2226 /* Common symbols look like undefined externs. */
68588f95 2227 if (mtyp == BFD_MACH_O_N_UNDF)
7f307238
IS		 2228 return 2;
2229
b22161d6 2230 /* A defined non-local, non-debug symbol. */
7f307238
IS		 2231 return 1;
2232}
2233
2234static int
2235bfd_mach_o_cf_symbols (const void *a, const void *b)
2236{
2237 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2238 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2239 unsigned int soa, sob;
2240
b22161d6
IS		 2241 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2242 sob = bfd_mach_o_primary_symbol_sort_key (sb);
7f307238
IS		 2243 if (soa < sob)
2244 return -1;
2245
2246 if (soa > sob)
2247 return 1;
2248
68588f95 2249 /* If it's local or stab, just preserve the input order. */
7f307238
IS		 2250 if (soa == 0)
2251 {
2252 if (sa->symbol.udata.i < sb->symbol.udata.i)
2253 return -1;
2254 if (sa->symbol.udata.i > sb->symbol.udata.i)
2255 return 1;
b22161d6
IS		 2256
2257 /* This is probably an error. */
7f307238
IS		 2258 return 0;
2259 }
2260
b22161d6
IS		 2261 /* The second sort key is name. */
2262 return strcmp (sa->symbol.name, sb->symbol.name);
7f307238
IS		 2263}
2264
2265/* Process the symbols.
2266
2267 This should be OK for single-module files - but it is not likely to work
2268 for multi-module shared libraries.
2269
2270 (a) If the application has not filled in the relevant mach-o fields, make
2271 an estimate.
2272
2273 (b) Order them, like this:
2274 ( i) local.
2275 (unsorted)
2276 ( ii) external defined
2277 (by name)
b22161d6 2278 (iii) external undefined/common
7f307238
IS		 2279 (by name)
2280 ( iv) common
2281 (by name)
b22161d6 2282*/
92bc0e80
TG		 2283
2284static bfd_boolean
b22161d6 2285bfd_mach_o_mangle_symbols (bfd *abfd)
92bc0e80
TG		 2286{
2287 unsigned long i;
2288 asymbol **symbols = bfd_get_outsymbols (abfd);
2289
7f307238
IS		 2290 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2291 return TRUE;
2292
92bc0e80
TG		 2293 for (i = 0; i < bfd_get_symcount (abfd); i++)
2294 {
2295 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2296
b22161d6
IS		 2297 /* We use this value, which is out-of-range as a symbol index, to signal
2298 that the mach-o-specific data are not filled in and need to be created
2299 from the bfd values. It is much preferable for the application to do
2300 this, since more meaningful diagnostics can be made that way. */
2301
2302 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
92bc0e80 2303 {
b22161d6
IS		 2304 /* No symbol information has been set - therefore determine
2305 it from the bfd symbol flags/info. */
92bc0e80
TG		 2306 if (s->symbol.section == bfd_abs_section_ptr)
2307 s->n_type = BFD_MACH_O_N_ABS;
2308 else if (s->symbol.section == bfd_und_section_ptr)
2309 {
2310 s->n_type = BFD_MACH_O_N_UNDF;
2311 if (s->symbol.flags & BSF_WEAK)
2312 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
7f307238
IS		 2313 /* mach-o automatically makes undefined symbols extern. */
2314 s->n_type |= BFD_MACH_O_N_EXT;
b22161d6 2315 s->symbol.flags |= BSF_GLOBAL;
92bc0e80
TG		 2316 }
2317 else if (s->symbol.section == bfd_com_section_ptr)
b22161d6
IS		 2318 {
2319 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2320 s->symbol.flags |= BSF_GLOBAL;
2321 }
92bc0e80
TG		 2322 else
2323 s->n_type = BFD_MACH_O_N_SECT;
68ffbac6 2324
92bc0e80
TG		 2325 if (s->symbol.flags & BSF_GLOBAL)
2326 s->n_type |= BFD_MACH_O_N_EXT;
2327 }
2328
7f307238 2329 /* Put the section index in, where required. */
68588f95 2330 if ((s->symbol.section != bfd_abs_section_ptr
92bc0e80
TG		 2331 && s->symbol.section != bfd_und_section_ptr
2332 && s->symbol.section != bfd_com_section_ptr)
68588f95
IS		 2333 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2334 && s->symbol.name == NULL))
707e555b 2335 s->n_sect = s->symbol.section->output_section->target_index;
92bc0e80 2336
b22161d6
IS		 2337 /* Number to preserve order for local and debug syms. */
2338 s->symbol.udata.i = i;
7f307238
IS		 2339 }
2340
b22161d6
IS		 2341 /* Sort the symbols. */
2342 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2343 sizeof (asymbol *), bfd_mach_o_cf_symbols);
7f307238 2344
b22161d6
IS		 2345 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2346 {
2347 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2348 s->symbol.udata.i = i; /* renumber. */
7f307238
IS		 2349 }
2350
2351 return TRUE;
2352}
2353
2354/* We build a flat table of sections, which can be re-ordered if necessary.
2355 Fill in the section number and other mach-o-specific data. */
2356
2357static bfd_boolean
2358bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2359{
2360 asection *sec;
2361 unsigned target_index;
2362 unsigned nsect;
2363
2364 nsect = bfd_count_sections (abfd);
68ffbac6 2365
7f307238
IS		 2366 /* Don't do it if it's already set - assume the application knows what it's
2367 doing. */
2368 if (mdata->nsects == nsect
2369 && (mdata->nsects == 0 || mdata->sections != NULL))
2370 return TRUE;
2371
a1165289
NC		 2372 /* We need to check that this can be done... */
2373 if (nsect > 255)
2374 {
2375 (*_bfd_error_handler) (_("mach-o: there are too many sections (%u)"
2376 " maximum is 255,\n"), nsect);
2377 return FALSE;
2378 }
2379
7f307238 2380 mdata->nsects = nsect;
68ffbac6 2381 mdata->sections = bfd_alloc (abfd,
7f307238
IS		 2382 mdata->nsects * sizeof (bfd_mach_o_section *));
2383 if (mdata->sections == NULL)
2384 return FALSE;
2385
7f307238 2386 /* Create Mach-O sections.
68ffbac6 2387 Section type, attribute and align should have been set when the
7f307238
IS		 2388 section was created - either read in or specified. */
2389 target_index = 0;
2390 for (sec = abfd->sections; sec; sec = sec->next)
2391 {
2392 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2393 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2394
2395 mdata->sections[target_index] = msect;
2396
2397 msect->addr = bfd_get_section_vma (abfd, sec);
2398 msect->size = bfd_get_section_size (sec);
2399
68ffbac6 2400 /* Use the largest alignment set, in case it was bumped after the
7f307238
IS		 2401 section was created. */
2402 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2403
2404 msect->offset = 0;
2405 sec->target_index = ++target_index;
92bc0e80 2406 }
7f307238 2407
92bc0e80
TG		 2408 return TRUE;
2409}
2410
154a1ee5 2411bfd_boolean
116c20d2 2412bfd_mach_o_write_contents (bfd *abfd)
3af9a47b 2413{
046b007d 2414 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea
TG		 2415 bfd_mach_o_load_command *cmd;
2416 bfd_mach_o_symtab_command *symtab = NULL;
2417 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2418 bfd_mach_o_segment_command *linkedit = NULL;
3af9a47b 2419
7f307238 2420 /* Make the commands, if not already present. */
c9ffd2ea
TG		 2421 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2422 return FALSE;
2423 abfd->output_has_begun = TRUE;
92bc0e80 2424
c9ffd2ea 2425 /* Write the header. */
154a1ee5 2426 if (!bfd_mach_o_write_header (abfd, &mdata->header))
b34976b6 2427 return FALSE;
3af9a47b 2428
c9ffd2ea
TG		 2429 /* First pass: allocate the linkedit segment. */
2430 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2431 switch (cmd->type)
2432 {
2433 case BFD_MACH_O_LC_SEGMENT_64:
2434 case BFD_MACH_O_LC_SEGMENT:
2435 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2436 linkedit = &cmd->command.segment;
2437 break;
2438 case BFD_MACH_O_LC_SYMTAB:
2439 symtab = &cmd->command.symtab;
2440 break;
2441 case BFD_MACH_O_LC_DYSYMTAB:
2442 dysymtab = &cmd->command.dysymtab;
2443 break;
2444 case BFD_MACH_O_LC_DYLD_INFO:
2445 {
2446 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2447
2448 if (di->rebase_size != 0)
2449 {
2450 di->rebase_off = mdata->filelen;
2451 mdata->filelen += di->rebase_size;
2452 }
2453 if (di->bind_size != 0)
2454 {
2455 di->bind_off = mdata->filelen;
2456 mdata->filelen += di->bind_size;
2457 }
2458 if (di->weak_bind_size != 0)
2459 {
2460 di->weak_bind_off = mdata->filelen;
2461 mdata->filelen += di->weak_bind_size;
2462 }
2463 if (di->lazy_bind_size != 0)
2464 {
2465 di->lazy_bind_off = mdata->filelen;
2466 mdata->filelen += di->lazy_bind_size;
2467 }
2468 if (di->export_size != 0)
2469 {
2470 di->export_off = mdata->filelen;
2471 mdata->filelen += di->export_size;
2472 }
2473 }
2474 break;
2475 case BFD_MACH_O_LC_LOAD_DYLIB:
2476 case BFD_MACH_O_LC_LOAD_DYLINKER:
2477 case BFD_MACH_O_LC_MAIN:
2478 /* Nothing to do. */
2479 break;
2480 default:
2481 (*_bfd_error_handler)
2482 (_("unable to allocate data for load command 0x%lx"),
2483 (unsigned long) cmd->type);
2484 break;
2485 }
2486
2487 /* Specially handle symtab and dysymtab. */
2488
2489 /* Pre-allocate the symbol table (but not the string table). The reason
2490 is that the dysymtab is after the symbol table but before the string
2491 table (required by the native strip tool). */
2492 if (symtab != NULL)
2493 {
2494 unsigned int symlen;
2495 unsigned int wide = bfd_mach_o_wide_p (abfd);
2496
2497 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2498
2499 /* Align for symbols. */
2500 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2501 symtab->symoff = mdata->filelen;
2502
2503 symtab->nsyms = bfd_get_symcount (abfd);
2504 mdata->filelen += symtab->nsyms * symlen;
2505 }
2506
2507 /* Build the dysymtab. */
2508 if (dysymtab != NULL)
2509 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2510 return FALSE;
2511
2512 /* Write symtab and strtab. */
2513 if (symtab != NULL)
2514 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2515 return FALSE;
2516
2517 /* Adjust linkedit size. */
2518 if (linkedit != NULL)
2519 {
2520 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2521
2522 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2523 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2524 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2525
2526 linkedit->initprot = BFD_MACH_O_PROT_READ;
2527 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2528 | BFD_MACH_O_PROT_EXECUTE;
2529 }
2530
2531 /* Second pass: write commands. */
2532 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 2533 {
46d1c23b 2534 struct mach_o_load_command_external raw;
3af9a47b
NC		 2535 unsigned long typeflag;
2536
c9ffd2ea 2537 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
3af9a47b 2538
46d1c23b 2539 bfd_h_put_32 (abfd, typeflag, raw.cmd);
c9ffd2ea 2540 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
3af9a47b 2541
c9ffd2ea 2542 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
46d1c23b 2543 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
b34976b6 2544 return FALSE;
3af9a47b 2545
c9ffd2ea 2546 switch (cmd->type)
3af9a47b
NC		 2547 {
2548 case BFD_MACH_O_LC_SEGMENT:
c9ffd2ea 2549 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
1e8a024a
TG		 2550 return FALSE;
2551 break;
2552 case BFD_MACH_O_LC_SEGMENT_64:
c9ffd2ea 2553 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
b34976b6 2554 return FALSE;
3af9a47b
NC		 2555 break;
2556 case BFD_MACH_O_LC_SYMTAB:
c9ffd2ea 2557 if (!bfd_mach_o_write_symtab (abfd, cmd))
b34976b6 2558 return FALSE;
3af9a47b 2559 break;
7f307238 2560 case BFD_MACH_O_LC_DYSYMTAB:
c9ffd2ea 2561 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
7f307238
IS		 2562 return FALSE;
2563 break;
3af9a47b
NC		 2564 case BFD_MACH_O_LC_THREAD:
2565 case BFD_MACH_O_LC_UNIXTHREAD:
c9ffd2ea 2566 if (!bfd_mach_o_write_thread (abfd, cmd))
b34976b6 2567 return FALSE;
3af9a47b 2568 break;
3af9a47b 2569 case BFD_MACH_O_LC_LOAD_DYLIB:
c9ffd2ea
TG		 2570 if (!bfd_mach_o_write_dylib (abfd, cmd))
2571 return FALSE;
2572 break;
3af9a47b 2573 case BFD_MACH_O_LC_LOAD_DYLINKER:
c9ffd2ea
TG		 2574 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2575 return FALSE;
2576 break;
2577 case BFD_MACH_O_LC_MAIN:
2578 if (!bfd_mach_o_write_main (abfd, cmd))
2579 return FALSE;
2580 break;
2581 case BFD_MACH_O_LC_DYLD_INFO:
2582 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2583 return FALSE;
3af9a47b
NC		 2584 break;
2585 default:
3cc27770
TG		 2586 (*_bfd_error_handler)
2587 (_("unable to write unknown load command 0x%lx"),
c9ffd2ea 2588 (unsigned long) cmd->type);
b34976b6 2589 return FALSE;
3af9a47b
NC		 2590 }
2591 }
2592
b34976b6 2593 return TRUE;
3af9a47b
NC		 2594}
2595
f1bde64c
TG		 2596static void
2597bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
c9ffd2ea 2598 bfd_mach_o_section *s)
f1bde64c 2599{
f1bde64c
TG		 2600 if (seg->sect_head == NULL)
2601 seg->sect_head = s;
2602 else
2603 seg->sect_tail->next = s;
2604 seg->sect_tail = s;
2605}
2606
2607/* Create section Mach-O flags from BFD flags. */
2608
2609static void
3cc27770
TG		 2610bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2611 asection *sec)
f1bde64c
TG		 2612{
2613 flagword bfd_flags;
2614 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2615
2616 /* Create default flags. */
2617 bfd_flags = bfd_get_section_flags (abfd, sec);
2618 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2619 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2620 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2621 | BFD_MACH_O_S_REGULAR;
2622 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2623 s->flags = BFD_MACH_O_S_ZEROFILL;
2624 else if (bfd_flags & SEC_DEBUGGING)
2625 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2626 else
2627 s->flags = BFD_MACH_O_S_REGULAR;
2628}
2629
7f307238 2630static bfd_boolean
c9ffd2ea 2631bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
7f307238 2632{
c9ffd2ea
TG		 2633 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2634 unsigned int i, j;
7f307238 2635
7f307238 2636 seg->vmaddr = 0;
7f307238 2637 seg->fileoff = mdata->filelen;
c9ffd2ea
TG		 2638 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2639 | BFD_MACH_O_PROT_EXECUTE;
2640 seg->maxprot = seg->initprot;
7f307238 2641
68ffbac6 2642 /* Append sections to the segment.
09903f4b
IS		 2643
2644 This is a little tedious, we have to honor the need to account zerofill
2645 sections after all the rest. This forces us to do the calculation of
68ffbac6 2646 total vmsize in three passes so that any alignment increments are
09903f4b 2647 properly accounted. */
7f307238
IS		 2648 for (i = 0; i < mdata->nsects; ++i)
2649 {
2650 bfd_mach_o_section *s = mdata->sections[i];
2651 asection *sec = s->bfdsection;
2652
09903f4b
IS		 2653 /* Although we account for zerofill section sizes in vm order, they are
2654 placed in the file in source sequence. */
c9ffd2ea 2655 bfd_mach_o_append_section_to_segment (seg, s);
e5081f2f 2656 s->offset = 0;
68ffbac6 2657
c9ffd2ea
TG		 2658 /* Zerofill sections have zero file size & offset, the only content
2659 written to the file is the symbols. */
e5081f2f 2660 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
c9ffd2ea
TG		 2661 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2662 == BFD_MACH_O_S_GB_ZEROFILL))
e5081f2f
IS		 2663 continue;
2664
c9ffd2ea
TG		 2665 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2666 sections, even those with zero size. */
e5081f2f 2667 if (s->size > 0)
c9ffd2ea 2668 {
09903f4b
IS		 2669 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2670 seg->vmsize += s->size;
2671
c9ffd2ea
TG		 2672 /* MH_OBJECT files have unaligned content. */
2673 if (1)
2674 {
2675 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2676 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2677 }
09903f4b
IS		 2678 seg->filesize += s->size;
2679
c9ffd2ea
TG		 2680 /* The system tools write even zero-sized sections with an offset
2681 field set to the current file position. */
7f307238 2682 s->offset = mdata->filelen;
c9ffd2ea 2683 }
7f307238
IS		 2684
2685 sec->filepos = s->offset;
7f307238
IS		 2686 mdata->filelen += s->size;
2687 }
2688
3cc27770 2689 /* Now pass through again, for zerofill, only now we just update the
c9ffd2ea
TG		 2690 vmsize, and then for zerofill_GB. */
2691 for (j = 0; j < 2; j++)
09903f4b 2692 {
c9ffd2ea 2693 unsigned int stype;
68ffbac6 2694
c9ffd2ea
TG		 2695 if (j == 0)
2696 stype = BFD_MACH_O_S_ZEROFILL;
2697 else
2698 stype = BFD_MACH_O_S_GB_ZEROFILL;
09903f4b 2699
c9ffd2ea
TG		 2700 for (i = 0; i < mdata->nsects; ++i)
2701 {
2702 bfd_mach_o_section *s = mdata->sections[i];
2703
2704 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2705 continue;
2706
2707 if (s->size > 0)
2708 {
2709 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2710 seg->vmsize += s->size;
2711 }
09903f4b
IS		 2712 }
2713 }
bb76d940 2714
09903f4b 2715 /* Allocate space for the relocations. */
707e555b 2716 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
bb76d940
IS		 2717
2718 for (i = 0; i < mdata->nsects; ++i)
2719 {
2720 bfd_mach_o_section *ms = mdata->sections[i];
2721 asection *sec = ms->bfdsection;
68ffbac6 2722
c9ffd2ea
TG		 2723 ms->nreloc = sec->reloc_count;
2724 if (ms->nreloc == 0)
bb76d940 2725 {
c9ffd2ea 2726 /* Clear nreloc and reloff if there is no relocs. */
bb76d940
IS		 2727 ms->reloff = 0;
2728 continue;
2729 }
2730 sec->rel_filepos = mdata->filelen;
2731 ms->reloff = sec->rel_filepos;
2732 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2733 }
7f307238
IS		 2734
2735 return TRUE;
2736}
2737
c9ffd2ea
TG		 2738static bfd_boolean
2739bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
50d10658 2740{
c9ffd2ea 2741 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
50d10658 2742 unsigned int i;
c9ffd2ea
TG		 2743 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2744 bfd_vma vma;
2745 bfd_mach_o_section *s;
2746
2747 seg->vmsize = 0;
50d10658 2748
c9ffd2ea
TG		 2749 seg->fileoff = mdata->filelen;
2750 seg->maxprot = 0;
2751 seg->initprot = 0;
2752 seg->flags = 0;
2753
2754 /* Append sections to the segment. We assume they are properly ordered
2755 by vma (but we check that). */
2756 vma = 0;
50d10658
IS		 2757 for (i = 0; i < mdata->nsects; ++i)
2758 {
c9ffd2ea 2759 s = mdata->sections[i];
50d10658 2760
c9ffd2ea
TG		 2761 /* Consider only sections for this segment. */
2762 if (strcmp (seg->segname, s->segname) != 0)
2763 continue;
50d10658 2764
c9ffd2ea 2765 bfd_mach_o_append_section_to_segment (seg, s);
7f307238 2766
c9ffd2ea
TG		 2767 BFD_ASSERT (s->addr >= vma);
2768 vma = s->addr + s->size;
7f307238
IS		 2769 }
2770
c9ffd2ea
TG		 2771 /* Set segment file offset: make it page aligned. */
2772 vma = seg->sect_head->addr;
2773 seg->vmaddr = vma & ~pagemask;
2774 if ((mdata->filelen & pagemask) > (vma & pagemask))
2775 mdata->filelen += pagemask + 1;
2776 seg->fileoff = mdata->filelen & ~pagemask;
2777 mdata->filelen = seg->fileoff + (vma & pagemask);
7f307238 2778
c9ffd2ea
TG		 2779 /* Set section file offset. */
2780 for (s = seg->sect_head; s != NULL; s = s->next)
7f307238 2781 {
c9ffd2ea
TG		 2782 asection *sec = s->bfdsection;
2783 flagword flags = bfd_get_section_flags (abfd, sec);
b22161d6 2784
c9ffd2ea
TG		 2785 /* Adjust segment size. */
2786 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2787 seg->vmsize += s->size;
2788
2789 /* File offset and length. */
2790 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2791
2792 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2793 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2794 != BFD_MACH_O_S_GB_ZEROFILL))
b22161d6 2795 {
c9ffd2ea
TG		 2796 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2797
2798 s->offset = mdata->filelen;
2799 s->bfdsection->filepos = s->offset;
2800
2801 seg->filesize += s->size;
2802 mdata->filelen += s->size;
b22161d6 2803 }
c9ffd2ea 2804 else
b22161d6 2805 {
c9ffd2ea
TG		 2806 s->offset = 0;
2807 s->bfdsection->filepos = 0;
2808 }
2809
2810 /* Set protection. */
2811 if (flags & SEC_LOAD)
2812 {
2813 if (flags & SEC_CODE)
2814 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
2815 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
2816 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
b22161d6 2817 }
c9ffd2ea
TG		 2818
2819 /* Relocs shouldn't appear in non-object files. */
2820 if (s->bfdsection->reloc_count != 0)
2821 return FALSE;
b22161d6 2822 }
c9ffd2ea
TG		 2823
2824 /* Set maxprot. */
2825 if (seg->initprot != 0)
2826 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2827 | BFD_MACH_O_PROT_EXECUTE;
b22161d6 2828 else
c9ffd2ea 2829 seg->maxprot = 0;
b22161d6 2830
c9ffd2ea
TG		 2831 /* Round segment size (and file size). */
2832 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
2833 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
2834 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
7f307238 2835
c9ffd2ea
TG		 2836 return TRUE;
2837}
68ffbac6 2838
c9ffd2ea
TG		 2839/* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
2840 fields in header. */
68ffbac6 2841
c9ffd2ea
TG		 2842static void
2843bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
2844{
2845 unsigned wide = mach_o_wide_p (&mdata->header);
2846 unsigned int hdrlen;
2847 ufile_ptr offset;
2848 bfd_mach_o_load_command *cmd;
2849 unsigned int align;
2850
2851 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2852 align = wide ? 8 - 1 : 4 - 1;
2853 offset = hdrlen;
2854 mdata->header.ncmds = 0;
50d10658 2855
c9ffd2ea
TG		 2856 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
2857 {
2858 mdata->header.ncmds++;
2859 cmd->offset = offset;
68ffbac6 2860
c9ffd2ea
TG		 2861 switch (cmd->type)
2862 {
2863 case BFD_MACH_O_LC_SEGMENT_64:
2864 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2865 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
2866 break;
2867 case BFD_MACH_O_LC_SEGMENT:
2868 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2869 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
2870 break;
2871 case BFD_MACH_O_LC_SYMTAB:
2872 cmd->len = sizeof (struct mach_o_symtab_command_external)
2873 + BFD_MACH_O_LC_SIZE;
2874 break;
2875 case BFD_MACH_O_LC_DYSYMTAB:
2876 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2877 + BFD_MACH_O_LC_SIZE;
2878 break;
2879 case BFD_MACH_O_LC_LOAD_DYLIB:
2880 cmd->len = sizeof (struct mach_o_dylib_command_external)
2881 + BFD_MACH_O_LC_SIZE;
2882 cmd->command.dylib.name_offset = cmd->len;
2883 cmd->len += strlen (cmd->command.dylib.name_str);
2884 cmd->len = (cmd->len + align) & ~align;
2885 break;
2886 case BFD_MACH_O_LC_LOAD_DYLINKER:
2887 cmd->len = sizeof (struct mach_o_str_command_external)
2888 + BFD_MACH_O_LC_SIZE;
2889 cmd->command.dylinker.name_offset = cmd->len;
2890 cmd->len += strlen (cmd->command.dylinker.name_str);
2891 cmd->len = (cmd->len + align) & ~align;
2892 break;
2893 case BFD_MACH_O_LC_MAIN:
2894 cmd->len = sizeof (struct mach_o_entry_point_command_external)
2895 + BFD_MACH_O_LC_SIZE;
2896 break;
2897 case BFD_MACH_O_LC_DYLD_INFO:
2898 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
2899 + BFD_MACH_O_LC_SIZE;
2900 break;
2901 default:
2902 (*_bfd_error_handler)
2903 (_("unable to layout unknown load command 0x%lx"),
2904 (unsigned long) cmd->type);
2905 break;
7f307238 2906 }
c9ffd2ea
TG		 2907
2908 BFD_ASSERT (cmd->len % (align + 1) == 0);
2909 offset += cmd->len;
7f307238 2910 }
c9ffd2ea
TG		 2911 mdata->header.sizeofcmds = offset - hdrlen;
2912 mdata->filelen = offset;
2913}
7f307238 2914
c9ffd2ea
TG		 2915/* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
2916 segment. */
2917
2918static void
2919bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
2920 bfd_mach_o_load_command *cmd,
2921 const char *segname, unsigned int nbr_sect)
2922{
2923 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2924 unsigned wide = mach_o_wide_p (&mdata->header);
2925
2926 /* Init segment command. */
2927 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
2928 cmd->type_required = FALSE;
2929
2930 strcpy (seg->segname, segname);
2931 seg->nsects = nbr_sect;
2932
2933 seg->vmaddr = 0;
2934 seg->vmsize = 0;
2935
2936 seg->fileoff = 0;
2937 seg->filesize = 0;
2938 seg->maxprot = 0;
2939 seg->initprot = 0;
2940 seg->flags = 0;
2941 seg->sect_head = NULL;
2942 seg->sect_tail = NULL;
7f307238
IS		 2943}
2944
2945/* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2946 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2947 and copy functionality. */
154a1ee5
TG		 2948
2949bfd_boolean
2950bfd_mach_o_build_commands (bfd *abfd)
2951{
046b007d 2952 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bbd56171 2953 unsigned wide = mach_o_wide_p (&mdata->header);
c9ffd2ea
TG		 2954 unsigned int nbr_segcmd = 0;
2955 bfd_mach_o_load_command *commands;
2956 unsigned int nbr_commands;
bbd56171
IS		 2957 int symtab_idx = -1;
2958 int dysymtab_idx = -1;
c9ffd2ea
TG		 2959 int main_idx = -1;
2960 unsigned int i;
154a1ee5 2961
c9ffd2ea
TG		 2962 /* Return now if already built. */
2963 if (mdata->header.ncmds != 0)
2964 return TRUE;
154a1ee5 2965
7f307238 2966 /* Fill in the file type, if not already set. */
7f307238 2967 if (mdata->header.filetype == 0)
154a1ee5 2968 {
7f307238
IS		 2969 if (abfd->flags & EXEC_P)
2970 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2971 else if (abfd->flags & DYNAMIC)
2972 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2973 else
2974 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
154a1ee5 2975 }
7f307238
IS		 2976
2977 /* If hasn't already been done, flatten sections list, and sort
2978 if/when required. Must be done before the symbol table is adjusted,
2979 since that depends on properly numbered sections. */
2980 if (mdata->nsects == 0 || mdata->sections == NULL)
2981 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2982 return FALSE;
2983
2984 /* Order the symbol table, fill-in/check mach-o specific fields and
2985 partition out any indirect symbols. */
b22161d6 2986 if (!bfd_mach_o_mangle_symbols (abfd))
7f307238
IS		 2987 return FALSE;
2988
c9ffd2ea
TG		 2989 /* Segment commands. */
2990 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
2991 {
2992 /* Only one segment for all the sections. But the segment is
2993 optional if there is no sections. */
2994 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
2995 }
2996 else
2997 {
2998 bfd_mach_o_section *prev_sect = NULL;
bbd56171 2999
c9ffd2ea
TG		 3000 /* One pagezero segment and one linkedit segment. */
3001 nbr_segcmd = 2;
bbd56171 3002
c9ffd2ea
TG		 3003 /* Create one segment for associated segment name in sections.
3004 Assume that sections with the same segment name are consecutive. */
3005 for (i = 0; i < mdata->nsects; i++)
3006 {
3007 bfd_mach_o_section *this_sect = mdata->sections[i];
bbd56171 3008
c9ffd2ea
TG		 3009 if (prev_sect == NULL
3010 || strcmp (prev_sect->segname, this_sect->segname) != 0)
3011 {
3012 nbr_segcmd++;
3013 prev_sect = this_sect;
3014 }
3015 }
154a1ee5 3016 }
154a1ee5 3017
c9ffd2ea
TG		 3018 nbr_commands = nbr_segcmd;
3019
3020 /* One command for the symbol table (only if there are symbols. */
7f307238 3021 if (bfd_get_symcount (abfd) > 0)
c9ffd2ea 3022 symtab_idx = nbr_commands++;
c2f09c75 3023
bbd56171
IS		 3024 /* FIXME:
3025 This is a rather crude test for whether we should build a dysymtab. */
3026 if (bfd_mach_o_should_emit_dysymtab ()
3027 && bfd_get_symcount (abfd))
3028 {
bbd56171
IS		 3029 /* If there should be a case where a dysymtab could be emitted without
3030 a symtab (seems improbable), this would need amending. */
c9ffd2ea 3031 dysymtab_idx = nbr_commands++;
bbd56171 3032 }
154a1ee5 3033
c9ffd2ea
TG		 3034 /* Add an entry point command. */
3035 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3036 && bfd_get_start_address (abfd) != 0)
3037 main_idx = nbr_commands++;
c2f09c75 3038
bbd56171 3039 /* Well, we must have a header, at least. */
c9ffd2ea 3040 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
f1bde64c 3041
bbd56171 3042 /* A bit unusual, but no content is valid;
7f307238 3043 as -n empty.s -o empty.o */
c9ffd2ea
TG		 3044 if (nbr_commands == 0)
3045 {
3046 /* Layout commands (well none...) and set headers command fields. */
3047 bfd_mach_o_layout_commands (mdata);
3048 return TRUE;
3049 }
f1bde64c 3050
c9ffd2ea
TG		 3051 /* Create commands for segments (and symtabs), prepend them. */
3052 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3053 if (commands == NULL)
7f307238 3054 return FALSE;
c9ffd2ea
TG		 3055 for (i = 0; i < nbr_commands - 1; i++)
3056 commands[i].next = &commands[i + 1];
3057 commands[nbr_commands - 1].next = mdata->first_command;
3058 if (mdata->first_command == NULL)
3059 mdata->last_command = &commands[nbr_commands - 1];
3060 mdata->first_command = &commands[0];
3061
3062 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3063 {
3064 /* For object file, there is only one segment. */
3065 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3066 }
3067 else if (nbr_segcmd != 0)
68ffbac6 3068 {
c9ffd2ea 3069 bfd_mach_o_load_command *cmd;
7f307238 3070
c9ffd2ea 3071 BFD_ASSERT (nbr_segcmd >= 2);
7f307238 3072
c9ffd2ea
TG		 3073 /* The pagezero. */
3074 cmd = &commands[0];
3075 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3076
3077 /* Segments from sections. */
3078 cmd++;
3079 for (i = 0; i < mdata->nsects;)
7f307238 3080 {
c9ffd2ea
TG		 3081 const char *segname = mdata->sections[i]->segname;
3082 unsigned int nbr_sect = 1;
3083
3084 /* Count number of sections for this segment. */
3085 for (i++; i < mdata->nsects; i++)
3086 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3087 nbr_sect++;
3088 else
3089 break;
3090
3091 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3092 cmd++;
7f307238 3093 }
bbd56171 3094
c9ffd2ea
TG		 3095 /* The linkedit. */
3096 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
7f307238 3097 }
f1bde64c 3098
bbd56171 3099 if (symtab_idx >= 0)
7f307238
IS		 3100 {
3101 /* Init symtab command. */
c9ffd2ea 3102 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
68ffbac6 3103
bbd56171 3104 cmd->type = BFD_MACH_O_LC_SYMTAB;
bbd56171 3105 cmd->type_required = FALSE;
7f307238 3106 }
154a1ee5 3107
bbd56171
IS		 3108 /* If required, setup symtab command, see comment above about the quality
3109 of this test. */
3110 if (dysymtab_idx >= 0)
7f307238 3111 {
c9ffd2ea 3112 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
bbd56171 3113
7f307238 3114 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
7f307238 3115 cmd->type_required = FALSE;
c9ffd2ea
TG		 3116 }
3117
3118 /* Create the main command. */
3119 if (main_idx >= 0)
3120 {
3121 bfd_mach_o_load_command *cmd = &commands[main_idx];
7f307238 3122
c9ffd2ea
TG		 3123 cmd->type = BFD_MACH_O_LC_MAIN;
3124 cmd->type_required = TRUE;
3125
3126 cmd->command.main.entryoff = 0;
3127 cmd->command.main.stacksize = 0;
154a1ee5 3128 }
154a1ee5 3129
c9ffd2ea
TG		 3130 /* Layout commands. */
3131 bfd_mach_o_layout_commands (mdata);
3132
7f307238
IS		 3133 /* So, now we have sized the commands and the filelen set to that.
3134 Now we can build the segment command and set the section file offsets. */
c9ffd2ea
TG		 3135 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3136 {
3137 for (i = 0; i < nbr_segcmd; i++)
3138 if (!bfd_mach_o_build_obj_seg_command
3139 (abfd, &commands[i].command.segment))
3140 return FALSE;
3141 }
3142 else
3143 {
3144 bfd_vma maxvma = 0;
7f307238 3145
c9ffd2ea
TG		 3146 /* Skip pagezero and linkedit segments. */
3147 for (i = 1; i < nbr_segcmd - 1; i++)
3148 {
3149 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3150
3151 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3152 return FALSE;
3153
3154 if (seg->vmaddr + seg->vmsize > maxvma)
3155 maxvma = seg->vmaddr + seg->vmsize;
3156 }
3157
3158 /* Set the size of __PAGEZERO. */
3159 commands[0].command.segment.vmsize =
3160 commands[1].command.segment.vmaddr;
3161
3162 /* Set the vma and fileoff of __LINKEDIT. */
3163 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3164 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3165
3166 /* Set entry point (once segments have been laid out). */
3167 if (main_idx >= 0)
3168 commands[main_idx].command.main.entryoff =
3169 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3170 }
7f307238 3171
154a1ee5
TG		 3172 return TRUE;
3173}
3174
3175/* Set the contents of a section. */
3176
3177bfd_boolean
3178bfd_mach_o_set_section_contents (bfd *abfd,
3179 asection *section,
3180 const void * location,
3181 file_ptr offset,
3182 bfd_size_type count)
3183{
3184 file_ptr pos;
3185
7f307238
IS		 3186 /* Trying to write the first section contents will trigger the creation of
3187 the load commands if they are not already present. */
c9ffd2ea 3188 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
154a1ee5
TG		 3189 return FALSE;
3190
3191 if (count == 0)
3192 return TRUE;
3193
3194 pos = section->filepos + offset;
3195 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3196 || bfd_bwrite (location, count, abfd) != count)
3197 return FALSE;
3198
3199 return TRUE;
3200}
3201
3202int
116c20d2 3203bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
a6b96beb 3204 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3af9a47b
NC		 3205{
3206 return 0;
3207}
3208
3209/* Make an empty symbol. This is required only because
3210 bfd_make_section_anyway wants to create a symbol for the section. */
3211
154a1ee5 3212asymbol *
116c20d2 3213bfd_mach_o_make_empty_symbol (bfd *abfd)
3af9a47b 3214{
d3ce72d0
NC		 3215 asymbol *new_symbol;
3216
3217 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3218 if (new_symbol == NULL)
3219 return new_symbol;
3220 new_symbol->the_bfd = abfd;
b22161d6 3221 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
d3ce72d0 3222 return new_symbol;
3af9a47b
NC		 3223}
3224
154a1ee5 3225static bfd_boolean
116c20d2 3226bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
3af9a47b 3227{
46d1c23b 3228 struct mach_o_header_external raw;
1e8a024a 3229 unsigned int size;
edeb6e24 3230 bfd_vma (*get32) (const void *) = NULL;
3af9a47b 3231
1e8a024a 3232 /* Just read the magic number. */
c2f09c75 3233 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 3234 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
154a1ee5 3235 return FALSE;
3af9a47b 3236
46d1c23b 3237 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b
NC		 3238 {
3239 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 3240 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a 3241 header->version = 1;
3af9a47b
NC		 3242 get32 = bfd_getb32;
3243 }
46d1c23b 3244 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b 3245 {
a95a4550 3246 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 3247 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a
TG		 3248 header->version = 1;
3249 get32 = bfd_getl32;
3250 }
46d1c23b 3251 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 3252 {
3253 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 3254 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a
TG		 3255 header->version = 2;
3256 get32 = bfd_getb32;
3257 }
46d1c23b 3258 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 3259 {
3260 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 3261 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a 3262 header->version = 2;
3af9a47b
NC		 3263 get32 = bfd_getl32;
3264 }
3265 else
3266 {
3267 header->byteorder = BFD_ENDIAN_UNKNOWN;
154a1ee5 3268 return FALSE;
3af9a47b 3269 }
a95a4550 3270
1e8a024a 3271 /* Once the size of the header is known, read the full header. */
c2f09c75 3272 size = mach_o_wide_p (header) ?
154a1ee5 3273 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1e8a024a 3274
c2f09c75 3275 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 3276 || bfd_bread (&raw, size, abfd) != size)
154a1ee5 3277 return FALSE;
1e8a024a 3278
46d1c23b
TG		 3279 header->cputype = (*get32) (raw.cputype);
3280 header->cpusubtype = (*get32) (raw.cpusubtype);
3281 header->filetype = (*get32) (raw.filetype);
3282 header->ncmds = (*get32) (raw.ncmds);
3283 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3284 header->flags = (*get32) (raw.flags);
3af9a47b 3285
c2f09c75 3286 if (mach_o_wide_p (header))
46d1c23b 3287 header->reserved = (*get32) (raw.reserved);
facf03f2
TG		 3288 else
3289 header->reserved = 0;
1e8a024a 3290
154a1ee5 3291 return TRUE;
3af9a47b
NC		 3292}
3293
f1bde64c
TG		 3294bfd_boolean
3295bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3296{
3297 bfd_mach_o_section *s;
a4551119 3298 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
f1bde64c
TG		 3299
3300 s = bfd_mach_o_get_mach_o_section (sec);
3301 if (s == NULL)
3302 {
3303 flagword bfd_flags;
a4551119 3304 static const mach_o_section_name_xlat * xlat;
f1bde64c
TG		 3305
3306 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3307 if (s == NULL)
3308 return FALSE;
3309 sec->used_by_bfd = s;
3310 s->bfdsection = sec;
3311
a4551119
TG		 3312 /* Create the Darwin seg/sect name pair from the bfd name.
3313 If this is a canonical name for which a specific paiting exists
3314 there will also be defined flags, type, attribute and alignment
3315 values. */
3316 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3317 if (xlat != NULL)
3318 {
3319 s->flags = xlat->macho_sectype | xlat->macho_secattr;
68ffbac6 3320 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
a4551119 3321 : bfdalign;
a253d456 3322 (void) bfd_set_section_alignment (abfd, sec, s->align);
a4551119
TG		 3323 bfd_flags = bfd_get_section_flags (abfd, sec);
3324 if (bfd_flags == SEC_NO_FLAGS)
3325 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3326 }
f1bde64c 3327 else
a4551119
TG		 3328 /* Create default flags. */
3329 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
f1bde64c
TG		 3330 }
3331
3332 return _bfd_generic_new_section_hook (abfd, sec);
3333}
3334
3335static void
3336bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3337 unsigned long prot)
3af9a47b 3338{
117ed4f8 3339 flagword flags;
f1bde64c 3340 bfd_mach_o_section *section;
3af9a47b 3341
f1bde64c
TG		 3342 flags = bfd_get_section_flags (abfd, sec);
3343 section = bfd_mach_o_get_mach_o_section (sec);
3af9a47b 3344
a4551119
TG		 3345 /* TODO: see if we should use the xlat system for doing this by
3346 preference and fall back to this for unknown sections. */
3347
8462aec7 3348 if (flags == SEC_NO_FLAGS)
ef17cb22 3349 {
8462aec7
TG		 3350 /* Try to guess flags. */
3351 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3352 flags = SEC_DEBUGGING;
3353 else
3354 {
3355 flags = SEC_ALLOC;
3356 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3357 != BFD_MACH_O_S_ZEROFILL)
3358 {
3359 flags |= SEC_LOAD;
3360 if (prot & BFD_MACH_O_PROT_EXECUTE)
3361 flags |= SEC_CODE;
3362 if (prot & BFD_MACH_O_PROT_WRITE)
3363 flags |= SEC_DATA;
3364 else if (prot & BFD_MACH_O_PROT_READ)
3365 flags |= SEC_READONLY;
3366 }
3367 }
ef17cb22 3368 }
15e1c58a
TG		 3369 else
3370 {
8462aec7
TG		 3371 if ((flags & SEC_DEBUGGING) == 0)
3372 flags |= SEC_ALLOC;
15e1c58a 3373 }
8462aec7
TG		 3374
3375 if (section->offset != 0)
3376 flags |= SEC_HAS_CONTENTS;
92bc0e80
TG		 3377 if (section->nreloc != 0)
3378 flags |= SEC_RELOC;
3379
f1bde64c
TG		 3380 bfd_set_section_flags (abfd, sec, flags);
3381
3382 sec->vma = section->addr;
3383 sec->lma = section->addr;
3384 sec->size = section->size;
3385 sec->filepos = section->offset;
3386 sec->alignment_power = section->align;
3387 sec->segment_mark = 0;
3388 sec->reloc_count = section->nreloc;
3389 sec->rel_filepos = section->reloff;
3390}
3391
3392static asection *
3393bfd_mach_o_make_bfd_section (bfd *abfd,
3394 const unsigned char *segname,
3395 const unsigned char *sectname)
3396{
3397 const char *sname;
3398 flagword flags;
a95a4550 3399
f1bde64c
TG		 3400 bfd_mach_o_convert_section_name_to_bfd
3401 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3402 if (sname == NULL)
3403 return NULL;
3af9a47b 3404
f1bde64c 3405 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3af9a47b
NC		 3406}
3407
f1bde64c 3408static asection *
ab273af8 3409bfd_mach_o_read_section_32 (bfd *abfd,
ab273af8
TG		 3410 unsigned int offset,
3411 unsigned long prot)
3af9a47b 3412{
46d1c23b 3413 struct mach_o_section_32_external raw;
f1bde64c
TG		 3414 asection *sec;
3415 bfd_mach_o_section *section;
3af9a47b 3416
c2f09c75 3417 if (bfd_seek (abfd, offset, SEEK_SET) != 0
46d1c23b 3418 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
c2f09c75 3419 != BFD_MACH_O_SECTION_SIZE))
f1bde64c 3420 return NULL;
a95a4550 3421
5a5cbf72 3422 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 3423 if (sec == NULL)
3424 return NULL;
3425
3426 section = bfd_mach_o_get_mach_o_section (sec);
3427 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3428 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3429 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 3430 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 3431 section->addr = bfd_h_get_32 (abfd, raw.addr);
3432 section->size = bfd_h_get_32 (abfd, raw.size);
3433 section->offset = bfd_h_get_32 (abfd, raw.offset);
3434 section->align = bfd_h_get_32 (abfd, raw.align);
3435 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3436 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3437 section->flags = bfd_h_get_32 (abfd, raw.flags);
3438 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3439 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
1e8a024a 3440 section->reserved3 = 0;
1e8a024a 3441
f1bde64c 3442 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
1e8a024a 3443
f1bde64c 3444 return sec;
1e8a024a
TG		 3445}
3446
f1bde64c 3447static asection *
ab273af8 3448bfd_mach_o_read_section_64 (bfd *abfd,
ab273af8
TG		 3449 unsigned int offset,
3450 unsigned long prot)
1e8a024a 3451{
46d1c23b 3452 struct mach_o_section_64_external raw;
f1bde64c
TG		 3453 asection *sec;
3454 bfd_mach_o_section *section;
1e8a024a 3455
c2f09c75 3456 if (bfd_seek (abfd, offset, SEEK_SET) != 0
46d1c23b 3457 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
c2f09c75 3458 != BFD_MACH_O_SECTION_64_SIZE))
f1bde64c
TG		 3459 return NULL;
3460
5a5cbf72 3461 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 3462 if (sec == NULL)
3463 return NULL;
1e8a024a 3464
f1bde64c
TG		 3465 section = bfd_mach_o_get_mach_o_section (sec);
3466 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3467 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3468 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 3469 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 3470 section->addr = bfd_h_get_64 (abfd, raw.addr);
3471 section->size = bfd_h_get_64 (abfd, raw.size);
3472 section->offset = bfd_h_get_32 (abfd, raw.offset);
3473 section->align = bfd_h_get_32 (abfd, raw.align);
3474 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3475 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3476 section->flags = bfd_h_get_32 (abfd, raw.flags);
3477 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3478 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3479 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3af9a47b 3480
f1bde64c 3481 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3af9a47b 3482
f1bde64c 3483 return sec;
3af9a47b
NC		 3484}
3485
f1bde64c 3486static asection *
ab273af8 3487bfd_mach_o_read_section (bfd *abfd,
ab273af8
TG		 3488 unsigned int offset,
3489 unsigned long prot,
3490 unsigned int wide)
1e8a024a
TG		 3491{
3492 if (wide)
f1bde64c 3493 return bfd_mach_o_read_section_64 (abfd, offset, prot);
1e8a024a 3494 else
f1bde64c 3495 return bfd_mach_o_read_section_32 (abfd, offset, prot);
1e8a024a
TG		 3496}
3497
afbb9e17 3498static bfd_boolean
ab273af8
TG		 3499bfd_mach_o_read_symtab_symbol (bfd *abfd,
3500 bfd_mach_o_symtab_command *sym,
3501 bfd_mach_o_asymbol *s,
3502 unsigned long i)
3af9a47b 3503{
046b007d 3504 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c2f09c75 3505 unsigned int wide = mach_o_wide_p (&mdata->header);
046b007d
TG		 3506 unsigned int symwidth =
3507 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
92bc0e80 3508 unsigned int symoff = sym->symoff + (i * symwidth);
46d1c23b 3509 struct mach_o_nlist_64_external raw;
3af9a47b
NC		 3510 unsigned char type = -1;
3511 unsigned char section = -1;
3512 short desc = -1;
1e8a024a 3513 symvalue value = -1;
3af9a47b
NC		 3514 unsigned long stroff = -1;
3515 unsigned int symtype = -1;
3516
3517 BFD_ASSERT (sym->strtab != NULL);
3518
c2f09c75 3519 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
46d1c23b 3520 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3af9a47b 3521 {
46d1c23b
TG		 3522 (*_bfd_error_handler)
3523 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
3524 symwidth, (unsigned long) symoff);
afbb9e17 3525 return FALSE;
3af9a47b
NC		 3526 }
3527
46d1c23b
TG		 3528 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3529 type = bfd_h_get_8 (abfd, raw.n_type);
c2f09c75 3530 symtype = type & BFD_MACH_O_N_TYPE;
46d1c23b
TG		 3531 section = bfd_h_get_8 (abfd, raw.n_sect);
3532 desc = bfd_h_get_16 (abfd, raw.n_desc);
1e8a024a 3533 if (wide)
46d1c23b 3534 value = bfd_h_get_64 (abfd, raw.n_value);
1e8a024a 3535 else
46d1c23b 3536 value = bfd_h_get_32 (abfd, raw.n_value);
3af9a47b
NC		 3537
3538 if (stroff >= sym->strsize)
3539 {
46d1c23b
TG		 3540 (*_bfd_error_handler)
3541 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
3542 (unsigned long) stroff,
3543 (unsigned long) sym->strsize);
afbb9e17 3544 return FALSE;
3af9a47b
NC		 3545 }
3546
92bc0e80
TG		 3547 s->symbol.the_bfd = abfd;
3548 s->symbol.name = sym->strtab + stroff;
3549 s->symbol.value = value;
3550 s->symbol.flags = 0x0;
b22161d6 3551 s->symbol.udata.i = i;
92bc0e80
TG		 3552 s->n_type = type;
3553 s->n_sect = section;
3554 s->n_desc = desc;
3af9a47b
NC		 3555
3556 if (type & BFD_MACH_O_N_STAB)
3557 {
92bc0e80
TG		 3558 s->symbol.flags |= BSF_DEBUGGING;
3559 s->symbol.section = bfd_und_section_ptr;
15e1c58a
TG		 3560 switch (type)
3561 {
3562 case N_FUN:
3563 case N_STSYM:
3564 case N_LCSYM:
3565 case N_BNSYM:
3566 case N_SLINE:
3567 case N_ENSYM:
3568 case N_ECOMM:
3569 case N_ECOML:
3570 case N_GSYM:
3571 if ((section > 0) && (section <= mdata->nsects))
3572 {
92bc0e80
TG		 3573 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3574 s->symbol.value =
3575 s->symbol.value - mdata->sections[section - 1]->addr;
15e1c58a
TG		 3576 }
3577 break;
3578 }
3af9a47b
NC		 3579 }
3580 else
3581 {
b22161d6 3582 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
92bc0e80 3583 s->symbol.flags |= BSF_GLOBAL;
b22161d6 3584 else
92bc0e80 3585 s->symbol.flags |= BSF_LOCAL;
3af9a47b
NC		 3586
3587 switch (symtype)
3588 {
3589 case BFD_MACH_O_N_UNDF:
c2f09c75 3590 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
92bc0e80 3591 && s->symbol.value != 0)
c2f09c75
TG		 3592 {
3593 /* A common symbol. */
92bc0e80
TG		 3594 s->symbol.section = bfd_com_section_ptr;
3595 s->symbol.flags = BSF_NO_FLAGS;
c2f09c75
TG		 3596 }
3597 else
92bc0e80
TG		 3598 {
3599 s->symbol.section = bfd_und_section_ptr;
3600 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3601 s->symbol.flags |= BSF_WEAK;
3602 }
3af9a47b
NC		 3603 break;
3604 case BFD_MACH_O_N_PBUD:
92bc0e80 3605 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3606 break;
3607 case BFD_MACH_O_N_ABS:
92bc0e80 3608 s->symbol.section = bfd_abs_section_ptr;
3af9a47b
NC		 3609 break;
3610 case BFD_MACH_O_N_SECT:
3611 if ((section > 0) && (section <= mdata->nsects))
3612 {
92bc0e80
TG		 3613 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3614 s->symbol.value =
3615 s->symbol.value - mdata->sections[section - 1]->addr;
3af9a47b
NC		 3616 }
3617 else
3618 {
3619 /* Mach-O uses 0 to mean "no section"; not an error. */
3620 if (section != 0)
3621 {
4a97a0e5
AM		 3622 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3623 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
3624 s->symbol.name, section, mdata->nsects);
3af9a47b 3625 }
92bc0e80 3626 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3627 }
3628 break;
3629 case BFD_MACH_O_N_INDR:
0596a831
TG		 3630 /* FIXME: we don't follow the BFD convention as this indirect symbol
3631 won't be followed by the referenced one. This looks harmless
3632 unless we start using the linker. */
3633 s->symbol.flags |= BSF_INDIRECT;
3634 s->symbol.section = bfd_ind_section_ptr;
3635 s->symbol.value = 0;
3af9a47b
NC		 3636 break;
3637 default:
4a97a0e5
AM		 3638 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
3639 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
3640 s->symbol.name, symtype);
92bc0e80 3641 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3642 break;
3643 }
3644 }
3645
afbb9e17 3646 return TRUE;
3af9a47b
NC		 3647}
3648
c5012cd8 3649bfd_boolean
ab273af8 3650bfd_mach_o_read_symtab_strtab (bfd *abfd)
3af9a47b 3651{
046b007d
TG		 3652 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3653 bfd_mach_o_symtab_command *sym = mdata->symtab;
3654
3655 /* Fail if there is no symtab. */
3656 if (sym == NULL)
afbb9e17 3657 return FALSE;
046b007d
TG		 3658
3659 /* Success if already loaded. */
3660 if (sym->strtab)
afbb9e17 3661 return TRUE;
3af9a47b
NC		 3662
3663 if (abfd->flags & BFD_IN_MEMORY)
3664 {
3665 struct bfd_in_memory *b;
3666
3667 b = (struct bfd_in_memory *) abfd->iostream;
3668
3669 if ((sym->stroff + sym->strsize) > b->size)
3670 {
3671 bfd_set_error (bfd_error_file_truncated);
afbb9e17 3672 return FALSE;
3af9a47b 3673 }
f075ee0c 3674 sym->strtab = (char *) b->buffer + sym->stroff;
3af9a47b 3675 }
046b007d 3676 else
3af9a47b 3677 {
046b007d
TG		 3678 sym->strtab = bfd_alloc (abfd, sym->strsize);
3679 if (sym->strtab == NULL)
afbb9e17 3680 return FALSE;
046b007d
TG		 3681
3682 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
afbb9e17 3683 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
046b007d 3684 {
a1165289
NC		 3685 /* PR 17512: file: 10888-1609-0.004. */
3686 bfd_release (abfd, sym->strtab);
3687 sym->strtab = NULL;
046b007d 3688 bfd_set_error (bfd_error_file_truncated);
afbb9e17 3689 return FALSE;
046b007d 3690 }
3af9a47b
NC		 3691 }
3692
afbb9e17 3693 return TRUE;
3af9a47b
NC		 3694}
3695
c5012cd8 3696bfd_boolean
ab273af8 3697bfd_mach_o_read_symtab_symbols (bfd *abfd)
3af9a47b 3698{
046b007d
TG		 3699 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3700 bfd_mach_o_symtab_command *sym = mdata->symtab;
3af9a47b 3701 unsigned long i;
3af9a47b 3702
092d27ff 3703 if (sym == NULL || sym->symbols)
0a9d414a
NC		 3704 /* Return now if there are no symbols or if already loaded. */
3705 return TRUE;
046b007d 3706
92bc0e80 3707 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
3af9a47b
NC		 3708
3709 if (sym->symbols == NULL)
3710 {
4a97a0e5 3711 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
afbb9e17 3712 return FALSE;
3af9a47b 3713 }
a95a4550 3714
afbb9e17 3715 if (!bfd_mach_o_read_symtab_strtab (abfd))
0a9d414a 3716 {
a1165289 3717 bfd_release (abfd, sym->symbols);
0a9d414a
NC		 3718 sym->symbols = NULL;
3719 return FALSE;
3720 }
3af9a47b
NC		 3721
3722 for (i = 0; i < sym->nsyms; i++)
3723 {
afbb9e17 3724 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
0a9d414a 3725 {
a1165289 3726 bfd_release (abfd, sym->symbols);
0a9d414a
NC		 3727 sym->symbols = NULL;
3728 return FALSE;
3729 }
3af9a47b 3730 }
a95a4550 3731
afbb9e17 3732 return TRUE;
3af9a47b
NC		 3733}
3734
3735static const char *
116c20d2 3736bfd_mach_o_i386_flavour_string (unsigned int flavour)
3af9a47b
NC		 3737{
3738 switch ((int) flavour)
3739 {
15e1c58a
TG		 3740 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3741 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3742 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3743 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3744 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3745 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3746 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3747 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3748 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3749 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3750 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3751 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
b32e07d7 3752 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3af9a47b
NC		 3753 default: return "UNKNOWN";
3754 }
3755}
3756
3757static const char *
116c20d2 3758bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3af9a47b
NC		 3759{
3760 switch ((int) flavour)
3761 {
b32e07d7
TG		 3762 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3763 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3764 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3765 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3766 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3767 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3af9a47b
NC		 3768 default: return "UNKNOWN";
3769 }
3770}
3771
452216ab 3772static bfd_boolean
ab273af8 3773bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 3774{
3775 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
46d1c23b 3776 struct mach_o_str_command_external raw;
3af9a47b 3777 unsigned int nameoff;
4525c51a 3778 unsigned int namelen;
3af9a47b 3779
46d1c23b
TG		 3780 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3781 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3782 return FALSE;
3af9a47b 3783
46d1c23b 3784 nameoff = bfd_h_get_32 (abfd, raw.str);
3af9a47b 3785
4525c51a
TG		 3786 cmd->name_offset = nameoff;
3787 namelen = command->len - nameoff;
3788 nameoff += command->offset;
3789 cmd->name_str = bfd_alloc (abfd, namelen);
b32e07d7 3790 if (cmd->name_str == NULL)
452216ab 3791 return FALSE;
4525c51a
TG		 3792 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3793 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
452216ab
TG		 3794 return FALSE;
3795 return TRUE;
3af9a47b
NC		 3796}
3797
452216ab 3798static bfd_boolean
ab273af8 3799bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 3800{
3801 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
46d1c23b 3802 struct mach_o_dylib_command_external raw;
3af9a47b 3803 unsigned int nameoff;
4525c51a 3804 unsigned int namelen;
3af9a47b 3805
046b007d
TG		 3806 switch (command->type)
3807 {
3808 case BFD_MACH_O_LC_LOAD_DYLIB:
fbe383b9 3809 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
046b007d 3810 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 3811 case BFD_MACH_O_LC_ID_DYLIB:
046b007d 3812 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 3813 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
046b007d
TG		 3814 break;
3815 default:
b32e07d7 3816 BFD_FAIL ();
452216ab 3817 return FALSE;
046b007d 3818 }
3af9a47b 3819
46d1c23b
TG		 3820 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3821 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3822 return FALSE;
3af9a47b 3823
46d1c23b
TG		 3824 nameoff = bfd_h_get_32 (abfd, raw.name);
3825 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3826 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3827 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3af9a47b
NC		 3828
3829 cmd->name_offset = command->offset + nameoff;
4525c51a
TG		 3830 namelen = command->len - nameoff;
3831 cmd->name_str = bfd_alloc (abfd, namelen);
b32e07d7 3832 if (cmd->name_str == NULL)
452216ab 3833 return FALSE;
b32e07d7 3834 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
4525c51a 3835 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
452216ab
TG		 3836 return FALSE;
3837 return TRUE;
3af9a47b
NC		 3838}
3839
452216ab 3840static bfd_boolean
7a79c514
TG		 3841bfd_mach_o_read_prebound_dylib (bfd *abfd,
3842 bfd_mach_o_load_command *command)
3af9a47b 3843{
7a79c514
TG		 3844 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
3845 struct mach_o_prebound_dylib_command_external raw;
3846 unsigned int nameoff;
3847 unsigned int modoff;
3848 unsigned int str_len;
3849 unsigned char *str;
3850
3851 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3852 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3853 return FALSE;
7a79c514
TG		 3854
3855 nameoff = bfd_h_get_32 (abfd, raw.name);
3856 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
3857 if (nameoff > command->len || modoff > command->len)
452216ab 3858 return FALSE;
7a79c514
TG		 3859
3860 str_len = command->len - sizeof (raw);
3861 str = bfd_alloc (abfd, str_len);
3862 if (str == NULL)
452216ab 3863 return FALSE;
7a79c514 3864 if (bfd_bread (str, str_len, abfd) != str_len)
452216ab 3865 return FALSE;
7a79c514
TG		 3866
3867 cmd->name_offset = command->offset + nameoff;
3868 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
3869 cmd->linked_modules_offset = command->offset + modoff;
3870
3871 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3872 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
452216ab 3873 return TRUE;
7a79c514
TG		 3874}
3875
452216ab 3876static bfd_boolean
7a79c514
TG		 3877bfd_mach_o_read_prebind_cksum (bfd *abfd,
3878 bfd_mach_o_load_command *command)
3879{
3880 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
3881 struct mach_o_prebind_cksum_command_external raw;
3af9a47b 3882
7a79c514
TG		 3883 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3884 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3885 return FALSE;
7a79c514
TG		 3886
3887 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
452216ab 3888 return TRUE;
7a79c514
TG		 3889}
3890
452216ab 3891static bfd_boolean
7a79c514
TG		 3892bfd_mach_o_read_twolevel_hints (bfd *abfd,
3893 bfd_mach_o_load_command *command)
3894{
3895 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
3896 struct mach_o_twolevel_hints_command_external raw;
3897
3898 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3899 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3900 return FALSE;
7a79c514
TG		 3901
3902 cmd->offset = bfd_get_32 (abfd, raw.offset);
3903 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
452216ab 3904 return TRUE;
3af9a47b
NC		 3905}
3906
452216ab 3907static bfd_boolean
9f4a5bd1
TG		 3908bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3909{
3910 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3911 struct mach_o_fvmlib_command_external raw;
3912 unsigned int nameoff;
4525c51a 3913 unsigned int namelen;
9f4a5bd1
TG		 3914
3915 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3916 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3917 return FALSE;
9f4a5bd1
TG		 3918
3919 nameoff = bfd_h_get_32 (abfd, raw.name);
3920 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3921 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3922
3923 fvm->name_offset = command->offset + nameoff;
4525c51a
TG		 3924 namelen = command->len - nameoff;
3925 fvm->name_str = bfd_alloc (abfd, namelen);
9f4a5bd1 3926 if (fvm->name_str == NULL)
452216ab 3927 return FALSE;
9f4a5bd1 3928 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
4525c51a 3929 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
452216ab
TG		 3930 return FALSE;
3931 return TRUE;
9f4a5bd1
TG		 3932}
3933
452216ab 3934static bfd_boolean
ab273af8 3935bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3936{
b32e07d7 3937 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 3938 bfd_mach_o_thread_command *cmd = &command->command.thread;
92bc0e80 3939 unsigned int offset;
3af9a47b
NC		 3940 unsigned int nflavours;
3941 unsigned int i;
3942
3943 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3944 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3945
b32e07d7 3946 /* Count the number of threads. */
3af9a47b
NC		 3947 offset = 8;
3948 nflavours = 0;
3949 while (offset != command->len)
3950 {
46d1c23b
TG		 3951 struct mach_o_thread_command_external raw;
3952
3af9a47b 3953 if (offset >= command->len)
452216ab 3954 return FALSE;
3af9a47b 3955
c2f09c75 3956 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 3957 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3958 return FALSE;
3af9a47b 3959
46d1c23b 3960 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3af9a47b
NC		 3961 nflavours++;
3962 }
3963
b32e07d7
TG		 3964 /* Allocate threads. */
3965 cmd->flavours = bfd_alloc
3966 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3af9a47b 3967 if (cmd->flavours == NULL)
452216ab 3968 return FALSE;
3af9a47b
NC		 3969 cmd->nflavours = nflavours;
3970
3971 offset = 8;
3972 nflavours = 0;
3973 while (offset != command->len)
3974 {
46d1c23b
TG		 3975 struct mach_o_thread_command_external raw;
3976
3af9a47b 3977 if (offset >= command->len)
452216ab 3978 return FALSE;
3af9a47b
NC		 3979
3980 if (nflavours >= cmd->nflavours)
452216ab 3981 return FALSE;
3af9a47b 3982
c2f09c75 3983 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 3984 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3985 return FALSE;
3af9a47b 3986
46d1c23b
TG		 3987 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3988 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3989 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3990 offset += cmd->flavours[nflavours].size + sizeof (raw);
3af9a47b
NC		 3991 nflavours++;
3992 }
3993
3994 for (i = 0; i < nflavours; i++)
3995 {
3996 asection *bfdsec;
3997 unsigned int snamelen;
3998 char *sname;
3999 const char *flavourstr;
4000 const char *prefix = "LC_THREAD";
a95a4550
AM		 4001 unsigned int j = 0;
4002
3af9a47b
NC		 4003 switch (mdata->header.cputype)
4004 {
4005 case BFD_MACH_O_CPU_TYPE_POWERPC:
1e8a024a 4006 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
707e555b
TG		 4007 flavourstr =
4008 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3af9a47b
NC		 4009 break;
4010 case BFD_MACH_O_CPU_TYPE_I386:
1e8a024a 4011 case BFD_MACH_O_CPU_TYPE_X86_64:
707e555b
TG		 4012 flavourstr =
4013 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3af9a47b
NC		 4014 break;
4015 default:
4016 flavourstr = "UNKNOWN_ARCHITECTURE";
4017 break;
4018 }
a95a4550 4019
3af9a47b 4020 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
116c20d2 4021 sname = bfd_alloc (abfd, snamelen);
3af9a47b 4022 if (sname == NULL)
452216ab 4023 return FALSE;
3af9a47b
NC		 4024
4025 for (;;)
4026 {
a95a4550
AM		 4027 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4028 if (bfd_get_section_by_name (abfd, sname) == NULL)
3af9a47b 4029 break;
a95a4550 4030 j++;
3af9a47b
NC		 4031 }
4032
117ed4f8 4033 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
a95a4550 4034
3af9a47b
NC		 4035 bfdsec->vma = 0;
4036 bfdsec->lma = 0;
eea6121a 4037 bfdsec->size = cmd->flavours[i].size;
3af9a47b
NC		 4038 bfdsec->filepos = cmd->flavours[i].offset;
4039 bfdsec->alignment_power = 0x0;
3af9a47b
NC		 4040
4041 cmd->section = bfdsec;
4042 }
4043
452216ab 4044 return TRUE;
3af9a47b
NC		 4045}
4046
452216ab 4047static bfd_boolean
ab273af8 4048bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4049{
046b007d 4050 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
b32e07d7 4051 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 4052
4053 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4054
46d1c23b
TG		 4055 {
4056 struct mach_o_dysymtab_command_external raw;
4057
4058 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4059 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4060 return FALSE;
3af9a47b 4061
46d1c23b
TG		 4062 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4063 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4064 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4065 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4066 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4067 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4068 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4069 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4070 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4071 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4072 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4073 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4074 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4075 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4076 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4077 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4078 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4079 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4080 }
046b007d
TG		 4081
4082 if (cmd->nmodtab != 0)
4083 {
046b007d
TG		 4084 unsigned int i;
4085 int wide = bfd_mach_o_wide_p (abfd);
4086 unsigned int module_len = wide ? 56 : 52;
4087
4088 cmd->dylib_module =
4089 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
4090 if (cmd->dylib_module == NULL)
452216ab 4091 return FALSE;
046b007d
TG		 4092
4093 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
452216ab 4094 return FALSE;
046b007d
TG		 4095
4096 for (i = 0; i < cmd->nmodtab; i++)
4097 {
4098 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4099 unsigned long v;
46d1c23b 4100 unsigned char buf[56];
046b007d 4101
91d6fa6a 4102 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
452216ab 4103 return FALSE;
046b007d
TG		 4104
4105 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4106 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4107 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4108 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4109 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4110 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4111 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4112 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4113 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4114 v = bfd_h_get_32 (abfd, buf +36);
4115 module->iinit = v & 0xffff;
4116 module->iterm = (v >> 16) & 0xffff;
4117 v = bfd_h_get_32 (abfd, buf + 40);
4118 module->ninit = v & 0xffff;
4119 module->nterm = (v >> 16) & 0xffff;
4120 if (wide)
4121 {
4122 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4123 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4124 }
4125 else
4126 {
4127 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4128 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4129 }
4130 }
4131 }
afbb9e17 4132
046b007d
TG		 4133 if (cmd->ntoc != 0)
4134 {
046b007d
TG		 4135 unsigned int i;
4136
4137 cmd->dylib_toc = bfd_alloc
4138 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
4139 if (cmd->dylib_toc == NULL)
452216ab 4140 return FALSE;
046b007d
TG		 4141
4142 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
452216ab 4143 return FALSE;
046b007d
TG		 4144
4145 for (i = 0; i < cmd->ntoc; i++)
4146 {
46d1c23b 4147 struct mach_o_dylib_table_of_contents_external raw;
046b007d
TG		 4148 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4149
46d1c23b 4150 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4151 return FALSE;
046b007d 4152
46d1c23b
TG		 4153 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4154 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
046b007d
TG		 4155 }
4156 }
4157
4158 if (cmd->nindirectsyms != 0)
4159 {
046b007d
TG		 4160 unsigned int i;
4161
4162 cmd->indirect_syms = bfd_alloc
4163 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
4164 if (cmd->indirect_syms == NULL)
452216ab 4165 return FALSE;
046b007d
TG		 4166
4167 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
452216ab 4168 return FALSE;
046b007d
TG		 4169
4170 for (i = 0; i < cmd->nindirectsyms; i++)
4171 {
46d1c23b 4172 unsigned char raw[4];
046b007d
TG		 4173 unsigned int *is = &cmd->indirect_syms[i];
4174
46d1c23b 4175 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4176 return FALSE;
046b007d 4177
46d1c23b 4178 *is = bfd_h_get_32 (abfd, raw);
046b007d
TG		 4179 }
4180 }
4181
4182 if (cmd->nextrefsyms != 0)
4183 {
046b007d
TG		 4184 unsigned long v;
4185 unsigned int i;
4186
4187 cmd->ext_refs = bfd_alloc
4188 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
4189 if (cmd->ext_refs == NULL)
452216ab 4190 return FALSE;
046b007d
TG		 4191
4192 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
452216ab 4193 return FALSE;
046b007d
TG		 4194
4195 for (i = 0; i < cmd->nextrefsyms; i++)
4196 {
46d1c23b 4197 unsigned char raw[4];
046b007d
TG		 4198 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4199
46d1c23b 4200 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4201 return FALSE;
046b007d 4202
b32e07d7
TG		 4203 /* Fields isym and flags are written as bit-fields, thus we need
4204 a specific processing for endianness. */
46d1c23b 4205 v = bfd_h_get_32 (abfd, raw);
b32e07d7
TG		 4206 if (bfd_big_endian (abfd))
4207 {
4208 ref->isym = (v >> 8) & 0xffffff;
4209 ref->flags = v & 0xff;
4210 }
4211 else
4212 {
4213 ref->isym = v & 0xffffff;
4214 ref->flags = (v >> 24) & 0xff;
4215 }
046b007d
TG		 4216 }
4217 }
3af9a47b 4218
b32e07d7 4219 if (mdata->dysymtab)
452216ab 4220 return FALSE;
b32e07d7
TG		 4221 mdata->dysymtab = cmd;
4222
452216ab 4223 return TRUE;
3af9a47b
NC		 4224}
4225
452216ab 4226static bfd_boolean
ab273af8 4227bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4228{
046b007d
TG		 4229 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4230 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
46d1c23b 4231 struct mach_o_symtab_command_external raw;
3af9a47b
NC		 4232
4233 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4234
46d1c23b
TG		 4235 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4236 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4237 return FALSE;
a95a4550 4238
46d1c23b
TG		 4239 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4240 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4241 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4242 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
046b007d
TG		 4243 symtab->symbols = NULL;
4244 symtab->strtab = NULL;
3af9a47b 4245
046b007d 4246 if (symtab->nsyms != 0)
15e1c58a
TG		 4247 abfd->flags |= HAS_SYMS;
4248
046b007d 4249 if (mdata->symtab)
452216ab 4250 return FALSE;
046b007d 4251 mdata->symtab = symtab;
452216ab 4252 return TRUE;
3af9a47b
NC		 4253}
4254
452216ab 4255static bfd_boolean
ab273af8 4256bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
15e1c58a
TG		 4257{
4258 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
15e1c58a
TG		 4259
4260 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4261
46d1c23b
TG		 4262 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4263 || bfd_bread (cmd->uuid, 16, abfd) != 16)
452216ab 4264 return FALSE;
15e1c58a 4265
452216ab 4266 return TRUE;
15e1c58a
TG		 4267}
4268
452216ab 4269static bfd_boolean
ab273af8 4270bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 4271{
4272 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
46d1c23b 4273 struct mach_o_linkedit_data_command_external raw;
046b007d 4274
46d1c23b
TG		 4275 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4276 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4277 return FALSE;
046b007d 4278
46d1c23b
TG		 4279 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4280 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
452216ab 4281 return TRUE;
046b007d
TG		 4282}
4283
452216ab 4284static bfd_boolean
ab273af8 4285bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 4286{
4287 bfd_mach_o_str_command *cmd = &command->command.str;
46d1c23b 4288 struct mach_o_str_command_external raw;
046b007d
TG		 4289 unsigned long off;
4290
46d1c23b
TG		 4291 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4292 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4293 return FALSE;
046b007d 4294
46d1c23b 4295 off = bfd_get_32 (abfd, raw.str);
046b007d
TG		 4296 cmd->stroff = command->offset + off;
4297 cmd->str_len = command->len - off;
4298 cmd->str = bfd_alloc (abfd, cmd->str_len);
4299 if (cmd->str == NULL)
452216ab 4300 return FALSE;
046b007d 4301 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
91d6fa6a 4302 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
452216ab
TG		 4303 return FALSE;
4304 return TRUE;
046b007d
TG		 4305}
4306
c9ffd2ea
TG		 4307static unsigned char *
4308bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4309{
4310 unsigned char *buf;
4311
4312 buf = bfd_alloc (abfd, size);
4313 if (buf == NULL)
4314 return NULL;
4315 if (bfd_seek (abfd, off, SEEK_SET) != 0
4316 || bfd_bread (buf, size, abfd) != size)
4317 return NULL;
4318 return buf;
4319}
4320
4321static bfd_boolean
4322bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4323{
4324 /* Read rebase content. */
4325 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4326 {
4327 cmd->rebase_content =
4328 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4329 if (cmd->rebase_content == NULL)
4330 return FALSE;
4331 }
4332
4333 /* Read bind content. */
4334 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4335 {
4336 cmd->bind_content =
4337 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4338 if (cmd->bind_content == NULL)
4339 return FALSE;
4340 }
4341
4342 /* Read weak bind content. */
4343 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4344 {
4345 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4346 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4347 if (cmd->weak_bind_content == NULL)
4348 return FALSE;
4349 }
4350
4351 /* Read lazy bind content. */
4352 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4353 {
4354 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4355 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4356 if (cmd->lazy_bind_content == NULL)
4357 return FALSE;
4358 }
4359
4360 /* Read export content. */
4361 if (cmd->export_content == NULL && cmd->export_size != 0)
4362 {
4363 cmd->export_content = bfd_mach_o_alloc_and_read
4364 (abfd, cmd->export_off, cmd->export_size);
4365 if (cmd->export_content == NULL)
4366 return FALSE;
4367 }
4368
4369 return TRUE;
4370}
4371
452216ab 4372static bfd_boolean
ab273af8 4373bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
ad86f1fb
TG		 4374{
4375 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
46d1c23b 4376 struct mach_o_dyld_info_command_external raw;
ad86f1fb 4377
46d1c23b
TG		 4378 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4379 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4380 return FALSE;
ad86f1fb 4381
46d1c23b
TG		 4382 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4383 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
c9ffd2ea 4384 cmd->rebase_content = NULL;
46d1c23b
TG		 4385 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4386 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
c9ffd2ea 4387 cmd->bind_content = NULL;
46d1c23b
TG		 4388 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4389 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
c9ffd2ea 4390 cmd->weak_bind_content = NULL;
46d1c23b
TG		 4391 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4392 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
c9ffd2ea 4393 cmd->lazy_bind_content = NULL;
46d1c23b
TG		 4394 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4395 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
c9ffd2ea 4396 cmd->export_content = NULL;
452216ab 4397 return TRUE;
ad86f1fb
TG		 4398}
4399
edbdea0e
TG		 4400static bfd_boolean
4401bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4402{
4403 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4404 struct mach_o_version_min_command_external raw;
4405 unsigned int ver;
4406
4407 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4408 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4409 return FALSE;
4410
4411 ver = bfd_get_32 (abfd, raw.version);
4412 cmd->rel = ver >> 16;
4413 cmd->maj = ver >> 8;
4414 cmd->min = ver;
4415 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4416 return TRUE;
4417}
4418
fc55a902
TG		 4419static bfd_boolean
4420bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4421{
4422 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4423 struct mach_o_encryption_info_command_external raw;
4424
4425 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4426 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4427 return FALSE;
4428
4429 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4430 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4431 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4432 return TRUE;
4433}
4434
1778ad74
TG		 4435static bfd_boolean
4436bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4437{
4438 bfd_mach_o_main_command *cmd = &command->command.main;
4439 struct mach_o_entry_point_command_external raw;
4440
4441 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4442 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4443 return FALSE;
4444
4445 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4446 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4447 return TRUE;
4448}
4449
4450static bfd_boolean
4451bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4452{
4453 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4454 struct mach_o_source_version_command_external raw;
4455 bfd_uint64_t ver;
4456
4457 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4458 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4459 return FALSE;
4460
4461 ver = bfd_get_64 (abfd, raw.version);
4462 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4463 generates warnings) in case of the host doesn't support 64 bit
4464 integers. */
4465 cmd->e = ver & 0x3ff;
4466 ver >>= 10;
4467 cmd->d = ver & 0x3ff;
4468 ver >>= 10;
4469 cmd->c = ver & 0x3ff;
4470 ver >>= 10;
4471 cmd->b = ver & 0x3ff;
4472 ver >>= 10;
4473 cmd->a = ver & 0xffffff;
4474 return TRUE;
4475}
4476
452216ab 4477static bfd_boolean
ab273af8
TG		 4478bfd_mach_o_read_segment (bfd *abfd,
4479 bfd_mach_o_load_command *command,
4480 unsigned int wide)
3af9a47b 4481{
3af9a47b
NC		 4482 bfd_mach_o_segment_command *seg = &command->command.segment;
4483 unsigned long i;
a95a4550 4484
1e8a024a
TG		 4485 if (wide)
4486 {
46d1c23b
TG		 4487 struct mach_o_segment_command_64_external raw;
4488
1e8a024a 4489 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
3af9a47b 4490
46d1c23b
TG		 4491 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4492 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4493 return FALSE;
3af9a47b 4494
46d1c23b 4495 memcpy (seg->segname, raw.segname, 16);
15e1c58a 4496 seg->segname[16] = '\0';
1e8a024a 4497
46d1c23b
TG		 4498 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4499 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4500 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4501 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4502 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4503 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4504 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4505 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a
TG		 4506 }
4507 else
4508 {
46d1c23b
TG		 4509 struct mach_o_segment_command_32_external raw;
4510
1e8a024a
TG		 4511 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4512
46d1c23b
TG		 4513 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
4514 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4515 return FALSE;
1e8a024a 4516
46d1c23b 4517 memcpy (seg->segname, raw.segname, 16);
15e1c58a 4518 seg->segname[16] = '\0';
1e8a024a 4519
46d1c23b
TG		 4520 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4521 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4522 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4523 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4524 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4525 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4526 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4527 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a 4528 }
9d4b6009
TG		 4529 seg->sect_head = NULL;
4530 seg->sect_tail = NULL;
3af9a47b 4531
f1bde64c 4532 for (i = 0; i < seg->nsects; i++)
3af9a47b 4533 {
f1bde64c
TG		 4534 bfd_vma segoff;
4535 asection *sec;
a95a4550 4536
f1bde64c
TG		 4537 if (wide)
4538 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
4539 + (i * BFD_MACH_O_SECTION_64_SIZE);
4540 else
4541 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
4542 + (i * BFD_MACH_O_SECTION_SIZE);
3af9a47b 4543
f1bde64c
TG		 4544 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
4545 if (sec == NULL)
452216ab 4546 return FALSE;
f1bde64c 4547
c9ffd2ea
TG		 4548 bfd_mach_o_append_section_to_segment
4549 (seg, bfd_mach_o_get_mach_o_section (sec));
3af9a47b
NC		 4550 }
4551
452216ab 4552 return TRUE;
3af9a47b
NC		 4553}
4554
452216ab 4555static bfd_boolean
ab273af8 4556bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 4557{
ab273af8 4558 return bfd_mach_o_read_segment (abfd, command, 0);
1e8a024a
TG		 4559}
4560
452216ab 4561static bfd_boolean
ab273af8 4562bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 4563{
ab273af8 4564 return bfd_mach_o_read_segment (abfd, command, 1);
1e8a024a
TG		 4565}
4566
452216ab 4567static bfd_boolean
ab273af8 4568bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4569{
46d1c23b
TG		 4570 struct mach_o_load_command_external raw;
4571 unsigned int cmd;
3af9a47b 4572
046b007d 4573 /* Read command type and length. */
c2f09c75 4574 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
46d1c23b 4575 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
452216ab 4576 return FALSE;
3af9a47b 4577
46d1c23b
TG		 4578 cmd = bfd_h_get_32 (abfd, raw.cmd);
4579 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4580 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4581 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
3af9a47b
NC		 4582
4583 switch (command->type)
4584 {
4585 case BFD_MACH_O_LC_SEGMENT:
452216ab
TG		 4586 if (!bfd_mach_o_read_segment_32 (abfd, command))
4587 return FALSE;
1e8a024a
TG		 4588 break;
4589 case BFD_MACH_O_LC_SEGMENT_64:
452216ab
TG		 4590 if (!bfd_mach_o_read_segment_64 (abfd, command))
4591 return FALSE;
3af9a47b
NC		 4592 break;
4593 case BFD_MACH_O_LC_SYMTAB:
452216ab
TG		 4594 if (!bfd_mach_o_read_symtab (abfd, command))
4595 return FALSE;
3af9a47b
NC		 4596 break;
4597 case BFD_MACH_O_LC_SYMSEG:
4598 break;
4599 case BFD_MACH_O_LC_THREAD:
4600 case BFD_MACH_O_LC_UNIXTHREAD:
452216ab
TG		 4601 if (!bfd_mach_o_read_thread (abfd, command))
4602 return FALSE;
3af9a47b
NC		 4603 break;
4604 case BFD_MACH_O_LC_LOAD_DYLINKER:
4605 case BFD_MACH_O_LC_ID_DYLINKER:
10be66a4 4606 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
452216ab
TG		 4607 if (!bfd_mach_o_read_dylinker (abfd, command))
4608 return FALSE;
3af9a47b
NC		 4609 break;
4610 case BFD_MACH_O_LC_LOAD_DYLIB:
fbe383b9 4611 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3af9a47b
NC		 4612 case BFD_MACH_O_LC_ID_DYLIB:
4613 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 4614 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 4615 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
452216ab
TG		 4616 if (!bfd_mach_o_read_dylib (abfd, command))
4617 return FALSE;
3af9a47b
NC		 4618 break;
4619 case BFD_MACH_O_LC_PREBOUND_DYLIB:
452216ab
TG		 4620 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4621 return FALSE;
3af9a47b
NC		 4622 break;
4623 case BFD_MACH_O_LC_LOADFVMLIB:
4624 case BFD_MACH_O_LC_IDFVMLIB:
452216ab
TG		 4625 if (!bfd_mach_o_read_fvmlib (abfd, command))
4626 return FALSE;
9f4a5bd1 4627 break;
3af9a47b
NC		 4628 case BFD_MACH_O_LC_IDENT:
4629 case BFD_MACH_O_LC_FVMFILE:
4630 case BFD_MACH_O_LC_PREPAGE:
4631 case BFD_MACH_O_LC_ROUTINES:
9b02d212 4632 case BFD_MACH_O_LC_ROUTINES_64:
046b007d 4633 break;
3af9a47b 4634 case BFD_MACH_O_LC_SUB_FRAMEWORK:
046b007d
TG		 4635 case BFD_MACH_O_LC_SUB_UMBRELLA:
4636 case BFD_MACH_O_LC_SUB_LIBRARY:
4637 case BFD_MACH_O_LC_SUB_CLIENT:
0c9b2b4c 4638 case BFD_MACH_O_LC_RPATH:
452216ab
TG		 4639 if (!bfd_mach_o_read_str (abfd, command))
4640 return FALSE;
3af9a47b
NC		 4641 break;
4642 case BFD_MACH_O_LC_DYSYMTAB:
452216ab
TG		 4643 if (!bfd_mach_o_read_dysymtab (abfd, command))
4644 return FALSE;
3af9a47b 4645 break;
3af9a47b 4646 case BFD_MACH_O_LC_PREBIND_CKSUM:
452216ab
TG		 4647 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4648 return FALSE;
7a79c514
TG		 4649 break;
4650 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
452216ab
TG		 4651 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4652 return FALSE;
3af9a47b 4653 break;
15e1c58a 4654 case BFD_MACH_O_LC_UUID:
452216ab
TG		 4655 if (!bfd_mach_o_read_uuid (abfd, command))
4656 return FALSE;
15e1c58a
TG		 4657 break;
4658 case BFD_MACH_O_LC_CODE_SIGNATURE:
846b9259 4659 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
edbdea0e 4660 case BFD_MACH_O_LC_FUNCTION_STARTS:
1778ad74
TG		 4661 case BFD_MACH_O_LC_DATA_IN_CODE:
4662 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
452216ab
TG		 4663 if (!bfd_mach_o_read_linkedit (abfd, command))
4664 return FALSE;
15e1c58a 4665 break;
fc55a902
TG		 4666 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4667 if (!bfd_mach_o_read_encryption_info (abfd, command))
452216ab 4668 return FALSE;
fc55a902 4669 break;
ad86f1fb 4670 case BFD_MACH_O_LC_DYLD_INFO:
452216ab
TG		 4671 if (!bfd_mach_o_read_dyld_info (abfd, command))
4672 return FALSE;
ad86f1fb 4673 break;
edbdea0e
TG		 4674 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4675 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4676 if (!bfd_mach_o_read_version_min (abfd, command))
452216ab 4677 return FALSE;
edbdea0e 4678 break;
1778ad74
TG		 4679 case BFD_MACH_O_LC_MAIN:
4680 if (!bfd_mach_o_read_main (abfd, command))
452216ab 4681 return FALSE;
1778ad74
TG		 4682 break;
4683 case BFD_MACH_O_LC_SOURCE_VERSION:
4684 if (!bfd_mach_o_read_source_version (abfd, command))
452216ab 4685 return FALSE;
1778ad74 4686 break;
3af9a47b 4687 default:
896ca098
NC		 4688 {
4689 static bfd_boolean unknown_set = FALSE;
4690 static unsigned long unknown_command = 0;
4691
4692 /* Prevent reams of error messages when parsing corrupt binaries. */
4693 if (!unknown_set)
4694 unknown_set = TRUE;
4695 else if (command->type == unknown_command)
4696 break;
4697 unknown_command = command->type;
4698
4699 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
4700 abfd, (unsigned long) command->type);
4701 break;
4702 }
3af9a47b
NC		 4703 }
4704
452216ab 4705 return TRUE;
3af9a47b
NC		 4706}
4707
4708static void
116c20d2 4709bfd_mach_o_flatten_sections (bfd *abfd)
3af9a47b 4710{
046b007d 4711 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea 4712 bfd_mach_o_load_command *cmd;
3af9a47b 4713 long csect = 0;
a95a4550 4714
15e1c58a 4715 /* Count total number of sections. */
3af9a47b
NC		 4716 mdata->nsects = 0;
4717
c9ffd2ea 4718 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 4719 {
c9ffd2ea
TG		 4720 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4721 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 4722 {
c9ffd2ea 4723 bfd_mach_o_segment_command *seg = &cmd->command.segment;
e84d6fca 4724
3af9a47b
NC		 4725 mdata->nsects += seg->nsects;
4726 }
4727 }
4728
15e1c58a 4729 /* Allocate sections array. */
e84d6fca
AM		 4730 mdata->sections = bfd_alloc (abfd,
4731 mdata->nsects * sizeof (bfd_mach_o_section *));
15e1c58a
TG		 4732
4733 /* Fill the array. */
3af9a47b
NC		 4734 csect = 0;
4735
c9ffd2ea 4736 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 4737 {
c9ffd2ea
TG		 4738 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4739 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 4740 {
c9ffd2ea 4741 bfd_mach_o_segment_command *seg = &cmd->command.segment;
f1bde64c 4742 bfd_mach_o_section *sec;
3af9a47b
NC		 4743
4744 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4745
f1bde64c
TG		 4746 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4747 mdata->sections[csect++] = sec;
3af9a47b
NC		 4748 }
4749 }
4750}
4751
afbb9e17 4752static bfd_boolean
116c20d2 4753bfd_mach_o_scan_start_address (bfd *abfd)
3af9a47b 4754{
046b007d 4755 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea
TG		 4756 bfd_mach_o_thread_command *thr = NULL;
4757 bfd_mach_o_load_command *cmd;
3af9a47b
NC		 4758 unsigned long i;
4759
c9ffd2ea
TG		 4760 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4761 if (cmd->type == BFD_MACH_O_LC_THREAD
4762 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
afbb9e17 4763 {
c9ffd2ea 4764 thr = &cmd->command.thread;
afbb9e17
TG		 4765 break;
4766 }
c9ffd2ea 4767 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
c0fd7846 4768 {
c9ffd2ea 4769 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
c0fd7846 4770 bfd_mach_o_section *text_sect = mdata->sections[0];
c9ffd2ea 4771
c0fd7846
TG		 4772 if (text_sect)
4773 {
4774 abfd->start_address = main_cmd->entryoff
4775 + (text_sect->addr - text_sect->offset);
4776 return TRUE;
4777 }
4778 }
3af9a47b 4779
5ee43bc4 4780 /* An object file has no start address, so do not fail if not found. */
c9ffd2ea 4781 if (thr == NULL)
5ee43bc4 4782 return TRUE;
3af9a47b 4783
afbb9e17 4784 /* FIXME: create a subtarget hook ? */
c9ffd2ea 4785 for (i = 0; i < thr->nflavours; i++)
3af9a47b 4786 {
a95a4550 4787 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
c9ffd2ea 4788 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
3af9a47b
NC		 4789 {
4790 unsigned char buf[4];
4791
c9ffd2ea 4792 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
c2f09c75 4793 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 4794 return FALSE;
3af9a47b
NC		 4795
4796 abfd->start_address = bfd_h_get_32 (abfd, buf);
4797 }
a95a4550 4798 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
c9ffd2ea 4799 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
3af9a47b
NC		 4800 {
4801 unsigned char buf[4];
4802
c9ffd2ea 4803 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
c2f09c75 4804 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 4805 return FALSE;
3af9a47b
NC		 4806
4807 abfd->start_address = bfd_h_get_32 (abfd, buf);
4808 }
1e8a024a 4809 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
c9ffd2ea 4810 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
1e8a024a
TG		 4811 {
4812 unsigned char buf[8];
4813
c9ffd2ea 4814 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
c2f09c75 4815 || bfd_bread (buf, 8, abfd) != 8)
afbb9e17 4816 return FALSE;
1e8a024a
TG		 4817
4818 abfd->start_address = bfd_h_get_64 (abfd, buf);
4819 }
4820 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
c9ffd2ea 4821 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
1e8a024a
TG		 4822 {
4823 unsigned char buf[8];
4824
c9ffd2ea 4825 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
c2f09c75 4826 || bfd_bread (buf, 8, abfd) != 8)
afbb9e17 4827 return FALSE;
1e8a024a
TG		 4828
4829 abfd->start_address = bfd_h_get_64 (abfd, buf);
4830 }
3af9a47b
NC		 4831 }
4832
afbb9e17 4833 return TRUE;
3af9a47b
NC		 4834}
4835
42fa0891
TG		 4836bfd_boolean
4837bfd_mach_o_set_arch_mach (bfd *abfd,
4838 enum bfd_architecture arch,
4839 unsigned long machine)
4840{
4841 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4842
4843 /* If this isn't the right architecture for this backend, and this
4844 isn't the generic backend, fail. */
4845 if (arch != bed->arch
4846 && arch != bfd_arch_unknown
4847 && bed->arch != bfd_arch_unknown)
4848 return FALSE;
4849
4850 return bfd_default_set_arch_mach (abfd, arch, machine);
4851}
4852
afbb9e17 4853static bfd_boolean
116c20d2
NC		 4854bfd_mach_o_scan (bfd *abfd,
4855 bfd_mach_o_header *header,
4856 bfd_mach_o_data_struct *mdata)
3af9a47b
NC		 4857{
4858 unsigned int i;
3af9a47b
NC		 4859 enum bfd_architecture cputype;
4860 unsigned long cpusubtype;
1e8a024a
TG		 4861 unsigned int hdrsize;
4862
c2f09c75 4863 hdrsize = mach_o_wide_p (header) ?
154a1ee5 4864 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3af9a47b 4865
3af9a47b 4866 mdata->header = *header;
3af9a47b 4867
154a1ee5 4868 abfd->flags = abfd->flags & BFD_IN_MEMORY;
15e1c58a
TG		 4869 switch (header->filetype)
4870 {
4871 case BFD_MACH_O_MH_OBJECT:
4872 abfd->flags |= HAS_RELOC;
4873 break;
4874 case BFD_MACH_O_MH_EXECUTE:
4875 abfd->flags |= EXEC_P;
4876 break;
4877 case BFD_MACH_O_MH_DYLIB:
4878 case BFD_MACH_O_MH_BUNDLE:
4879 abfd->flags |= DYNAMIC;
4880 break;
4881 }
4882
3af9a47b
NC		 4883 abfd->tdata.mach_o_data = mdata;
4884
e84d6fca
AM		 4885 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4886 &cputype, &cpusubtype);
3af9a47b
NC		 4887 if (cputype == bfd_arch_unknown)
4888 {
afbb9e17
TG		 4889 (*_bfd_error_handler)
4890 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
4891 header->cputype, header->cpusubtype);
4892 return FALSE;
3af9a47b
NC		 4893 }
4894
4895 bfd_set_arch_mach (abfd, cputype, cpusubtype);
a95a4550 4896
3af9a47b
NC		 4897 if (header->ncmds != 0)
4898 {
c9ffd2ea
TG		 4899 bfd_mach_o_load_command *cmd;
4900
4901 mdata->first_command = NULL;
4902 mdata->last_command = NULL;
4903 cmd = bfd_alloc (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
4904 if (cmd == NULL)
afbb9e17 4905 return FALSE;
a95a4550 4906
3af9a47b
NC		 4907 for (i = 0; i < header->ncmds; i++)
4908 {
c9ffd2ea
TG		 4909 bfd_mach_o_load_command *cur = &cmd[i];
4910
4911 bfd_mach_o_append_command (abfd, cur);
3af9a47b
NC		 4912
4913 if (i == 0)
1e8a024a 4914 cur->offset = hdrsize;
3af9a47b
NC		 4915 else
4916 {
c9ffd2ea 4917 bfd_mach_o_load_command *prev = &cmd[i - 1];
3af9a47b
NC		 4918 cur->offset = prev->offset + prev->len;
4919 }
4920
452216ab 4921 if (!bfd_mach_o_read_command (abfd, cur))
afbb9e17 4922 return FALSE;
a95a4550 4923 }
3af9a47b
NC		 4924 }
4925
c0fd7846
TG		 4926 /* Sections should be flatten before scanning start address. */
4927 bfd_mach_o_flatten_sections (abfd);
4928 if (!bfd_mach_o_scan_start_address (abfd))
afbb9e17 4929 return FALSE;
3af9a47b 4930
afbb9e17 4931 return TRUE;
3af9a47b
NC		 4932}
4933
b34976b6 4934bfd_boolean
154a1ee5 4935bfd_mach_o_mkobject_init (bfd *abfd)
3af9a47b
NC		 4936{
4937 bfd_mach_o_data_struct *mdata = NULL;
4938
b30a5d18 4939 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
3af9a47b 4940 if (mdata == NULL)
b34976b6 4941 return FALSE;
3af9a47b
NC		 4942 abfd->tdata.mach_o_data = mdata;
4943
4944 mdata->header.magic = 0;
4945 mdata->header.cputype = 0;
4946 mdata->header.cpusubtype = 0;
4947 mdata->header.filetype = 0;
4948 mdata->header.ncmds = 0;
4949 mdata->header.sizeofcmds = 0;
4950 mdata->header.flags = 0;
4951 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
c9ffd2ea
TG		 4952 mdata->first_command = NULL;
4953 mdata->last_command = NULL;
3af9a47b
NC		 4954 mdata->nsects = 0;
4955 mdata->sections = NULL;
4434114c 4956 mdata->dyn_reloc_cache = NULL;
3af9a47b 4957
b34976b6 4958 return TRUE;
3af9a47b
NC		 4959}
4960
42fa0891
TG		 4961static bfd_boolean
4962bfd_mach_o_gen_mkobject (bfd *abfd)
4963{
4964 bfd_mach_o_data_struct *mdata;
4965
4966 if (!bfd_mach_o_mkobject_init (abfd))
4967 return FALSE;
4968
4969 mdata = bfd_mach_o_get_data (abfd);
4970 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
4971 mdata->header.cputype = 0;
4972 mdata->header.cpusubtype = 0;
4973 mdata->header.byteorder = abfd->xvec->byteorder;
4974 mdata->header.version = 1;
4975
4976 return TRUE;
4977}
4978
3af9a47b 4979const bfd_target *
154a1ee5
TG		 4980bfd_mach_o_header_p (bfd *abfd,
4981 bfd_mach_o_filetype filetype,
4982 bfd_mach_o_cpu_type cputype)
3af9a47b
NC		 4983{
4984 bfd_mach_o_header header;
c9ba0c87 4985 bfd_mach_o_data_struct *mdata;
3af9a47b 4986
154a1ee5 4987 if (!bfd_mach_o_read_header (abfd, &header))
e84d6fca 4988 goto wrong;
3af9a47b 4989
e84d6fca
AM		 4990 if (! (header.byteorder == BFD_ENDIAN_BIG
4991 || header.byteorder == BFD_ENDIAN_LITTLE))
3af9a47b 4992 {
4a97a0e5
AM		 4993 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
4994 (unsigned long) header.byteorder);
e84d6fca 4995 goto wrong;
3af9a47b
NC		 4996 }
4997
e84d6fca
AM		 4998 if (! ((header.byteorder == BFD_ENDIAN_BIG
4999 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
5000 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
5001 || (header.byteorder == BFD_ENDIAN_LITTLE
5002 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
5003 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
5004 goto wrong;
3af9a47b 5005
154a1ee5
TG		 5006 /* Check cputype and filetype.
5007 In case of wildcard, do not accept magics that are handled by existing
5008 targets. */
5009 if (cputype)
5010 {
5011 if (header.cputype != cputype)
5012 goto wrong;
5013 }
26954155
TG		 5014 else
5015 {
5016#ifndef BFD64
5017 /* Do not recognize 64 architectures if not configured for 64bit targets.
5018 This could happen only for generic targets. */
5019 if (mach_o_wide_p (&header))
5020 goto wrong;
5021#endif
5022 }
b22161d6 5023
154a1ee5
TG		 5024 if (filetype)
5025 {
5026 if (header.filetype != filetype)
5027 goto wrong;
5028 }
5029 else
5030 {
5031 switch (header.filetype)
5032 {
5033 case BFD_MACH_O_MH_CORE:
5034 /* Handled by core_p */
5035 goto wrong;
5036 default:
5037 break;
5038 }
5039 }
5040
c9ba0c87
AM		 5041 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5042 if (mdata == NULL)
e84d6fca 5043 goto fail;
3af9a47b 5044
c9ba0c87 5045 if (!bfd_mach_o_scan (abfd, &header, mdata))
e84d6fca 5046 goto wrong;
a95a4550 5047
3af9a47b 5048 return abfd->xvec;
e84d6fca
AM		 5049
5050 wrong:
5051 bfd_set_error (bfd_error_wrong_format);
5052
5053 fail:
e84d6fca 5054 return NULL;
3af9a47b
NC		 5055}
5056
154a1ee5
TG		 5057static const bfd_target *
5058bfd_mach_o_gen_object_p (bfd *abfd)
3af9a47b 5059{
154a1ee5
TG		 5060 return bfd_mach_o_header_p (abfd, 0, 0);
5061}
e84d6fca 5062
154a1ee5
TG		 5063static const bfd_target *
5064bfd_mach_o_gen_core_p (bfd *abfd)
5065{
5066 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
3af9a47b
NC		 5067}
5068
3cc27770
TG		 5069/* Return the base address of ABFD, ie the address at which the image is
5070 mapped. The possible initial pagezero is ignored. */
5071
5072bfd_vma
5073bfd_mach_o_get_base_address (bfd *abfd)
5074{
5075 bfd_mach_o_data_struct *mdata;
c9ffd2ea 5076 bfd_mach_o_load_command *cmd;
3cc27770
TG		 5077
5078 /* Check for Mach-O. */
5079 if (!bfd_mach_o_valid (abfd))
5080 return 0;
5081 mdata = bfd_mach_o_get_data (abfd);
5082
c9ffd2ea 5083 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3cc27770 5084 {
3cc27770
TG		 5085 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5086 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5087 {
5088 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5089
5090 if (segcmd->initprot != 0)
5091 return segcmd->vmaddr;
5092 }
5093 }
5094 return 0;
5095}
5096
3af9a47b
NC		 5097typedef struct mach_o_fat_archentry
5098{
5099 unsigned long cputype;
5100 unsigned long cpusubtype;
5101 unsigned long offset;
5102 unsigned long size;
5103 unsigned long align;
3af9a47b
NC		 5104} mach_o_fat_archentry;
5105
5106typedef struct mach_o_fat_data_struct
5107{
5108 unsigned long magic;
5109 unsigned long nfat_arch;
5110 mach_o_fat_archentry *archentries;
5111} mach_o_fat_data_struct;
5112
5113const bfd_target *
116c20d2 5114bfd_mach_o_archive_p (bfd *abfd)
3af9a47b 5115{
e84d6fca 5116 mach_o_fat_data_struct *adata = NULL;
46d1c23b 5117 struct mach_o_fat_header_external hdr;
3af9a47b
NC		 5118 unsigned long i;
5119
c2f09c75 5120 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 5121 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
e84d6fca 5122 goto error;
3af9a47b 5123
116c20d2 5124 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
3af9a47b 5125 if (adata == NULL)
e84d6fca 5126 goto error;
a95a4550 5127
46d1c23b
TG		 5128 adata->magic = bfd_getb32 (hdr.magic);
5129 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
3af9a47b 5130 if (adata->magic != 0xcafebabe)
e84d6fca 5131 goto error;
27cc28f9
AS		 5132 /* Avoid matching Java bytecode files, which have the same magic number.
5133 In the Java bytecode file format this field contains the JVM version,
5134 which starts at 43.0. */
5135 if (adata->nfat_arch > 30)
5136 goto error;
3af9a47b 5137
c2f09c75 5138 adata->archentries =
3af9a47b
NC		 5139 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
5140 if (adata->archentries == NULL)
e84d6fca 5141 goto error;
3af9a47b
NC		 5142
5143 for (i = 0; i < adata->nfat_arch; i++)
5144 {
46d1c23b
TG		 5145 struct mach_o_fat_arch_external arch;
5146 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
e84d6fca 5147 goto error;
46d1c23b
TG		 5148 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5149 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5150 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5151 adata->archentries[i].size = bfd_getb32 (arch.size);
5152 adata->archentries[i].align = bfd_getb32 (arch.align);
3af9a47b
NC		 5153 }
5154
5155 abfd->tdata.mach_o_fat_data = adata;
5156 return abfd->xvec;
e84d6fca
AM		 5157
5158 error:
5159 if (adata != NULL)
5160 bfd_release (abfd, adata);
5161 bfd_set_error (bfd_error_wrong_format);
5162 return NULL;
3af9a47b
NC		 5163}
5164
a4e241ca
TG		 5165/* Set the filename for a fat binary member ABFD, whose bfd architecture is
5166 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5167 Set arelt_data and origin fields too. */
5168
5169static void
5170bfd_mach_o_fat_member_init (bfd *abfd,
5171 enum bfd_architecture arch_type,
5172 unsigned long arch_subtype,
5173 mach_o_fat_archentry *entry)
5174{
5175 struct areltdata *areltdata;
5176 /* Create the member filename. Use ARCH_NAME. */
5177 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5178
5179 if (ap)
5180 {
5181 /* Use the architecture name if known. */
1be5090b 5182 abfd->filename = xstrdup (ap->printable_name);
a4e241ca
TG		 5183 }
5184 else
5185 {
5186 /* Forge a uniq id. */
5187 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
1be5090b 5188 char *name = xmalloc (namelen);
a4e241ca
TG		 5189 snprintf (name, namelen, "0x%lx-0x%lx",
5190 entry->cputype, entry->cpusubtype);
5191 abfd->filename = name;
5192 }
5193
06e7acd7 5194 areltdata = bfd_zmalloc (sizeof (struct areltdata));
a4e241ca
TG		 5195 areltdata->parsed_size = entry->size;
5196 abfd->arelt_data = areltdata;
5197 abfd->iostream = NULL;
5198 abfd->origin = entry->offset;
5199}
5200
3af9a47b 5201bfd *
116c20d2 5202bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
3af9a47b 5203{
e84d6fca 5204 mach_o_fat_data_struct *adata;
3af9a47b
NC		 5205 mach_o_fat_archentry *entry = NULL;
5206 unsigned long i;
15e1c58a 5207 bfd *nbfd;
15e1c58a
TG		 5208 enum bfd_architecture arch_type;
5209 unsigned long arch_subtype;
3af9a47b 5210
e84d6fca 5211 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
3af9a47b
NC		 5212 BFD_ASSERT (adata != NULL);
5213
5214 /* Find index of previous entry. */
5215 if (prev == NULL)
a4e241ca
TG		 5216 {
5217 /* Start at first one. */
5218 i = 0;
5219 }
3af9a47b
NC		 5220 else
5221 {
a4e241ca 5222 /* Find index of PREV. */
3af9a47b
NC		 5223 for (i = 0; i < adata->nfat_arch; i++)
5224 {
15e1c58a 5225 if (adata->archentries[i].offset == prev->origin)
3af9a47b
NC		 5226 break;
5227 }
5228
5229 if (i == adata->nfat_arch)
5230 {
5231 /* Not found. */
5232 bfd_set_error (bfd_error_bad_value);
a95a4550 5233 return NULL;
3af9a47b 5234 }
a4e241ca
TG		 5235
5236 /* Get next entry. */
5237 i++;
5238 }
a95a4550 5239
3af9a47b
NC		 5240 if (i >= adata->nfat_arch)
5241 {
5242 bfd_set_error (bfd_error_no_more_archived_files);
5243 return NULL;
5244 }
5245
5246 entry = &adata->archentries[i];
15e1c58a
TG		 5247 nbfd = _bfd_new_bfd_contained_in (archive);
5248 if (nbfd == NULL)
5249 return NULL;
5250
15e1c58a
TG		 5251 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5252 &arch_type, &arch_subtype);
846b9259 5253
a4e241ca
TG		 5254 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5255
846b9259 5256 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
3af9a47b 5257
15e1c58a 5258 return nbfd;
3af9a47b
NC		 5259}
5260
15bbba8d
TG		 5261/* Analogous to stat call. */
5262
5263static int
5264bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5265{
5266 if (abfd->arelt_data == NULL)
5267 {
5268 bfd_set_error (bfd_error_invalid_operation);
5269 return -1;
5270 }
5271
5272 buf->st_mtime = 0;
5273 buf->st_uid = 0;
5274 buf->st_gid = 0;
5275 buf->st_mode = 0644;
5276 buf->st_size = arelt_size (abfd);
5277
5278 return 0;
5279}
5280
846b9259
TG		 5281/* If ABFD format is FORMAT and architecture is ARCH, return it.
5282 If ABFD is a fat image containing a member that corresponds to FORMAT
5283 and ARCH, returns it.
5284 In other case, returns NULL.
5285 This function allows transparent uses of fat images. */
a4e241ca 5286
846b9259
TG		 5287bfd *
5288bfd_mach_o_fat_extract (bfd *abfd,
5289 bfd_format format,
5290 const bfd_arch_info_type *arch)
5291{
5292 bfd *res;
5293 mach_o_fat_data_struct *adata;
5294 unsigned int i;
5295
5296 if (bfd_check_format (abfd, format))
5297 {
5298 if (bfd_get_arch_info (abfd) == arch)
5299 return abfd;
5300 return NULL;
5301 }
5302 if (!bfd_check_format (abfd, bfd_archive)
5303 || abfd->xvec != &mach_o_fat_vec)
5304 return NULL;
c2f09c75 5305
846b9259
TG		 5306 /* This is a Mach-O fat image. */
5307 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5308 BFD_ASSERT (adata != NULL);
5309
5310 for (i = 0; i < adata->nfat_arch; i++)
5311 {
5312 struct mach_o_fat_archentry *e = &adata->archentries[i];
5313 enum bfd_architecture cpu_type;
5314 unsigned long cpu_subtype;
5315
5316 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5317 &cpu_type, &cpu_subtype);
5318 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5319 continue;
5320
5321 /* The architecture is found. */
5322 res = _bfd_new_bfd_contained_in (abfd);
5323 if (res == NULL)
5324 return NULL;
5325
a4e241ca 5326 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
846b9259
TG		 5327
5328 if (bfd_check_format (res, format))
5329 {
5330 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5331 return res;
5332 }
5333 bfd_close (res);
5334 return NULL;
5335 }
5336
5337 return NULL;
5338}
5339
3af9a47b 5340int
116c20d2
NC		 5341bfd_mach_o_lookup_command (bfd *abfd,
5342 bfd_mach_o_load_command_type type,
5343 bfd_mach_o_load_command **mcommand)
3af9a47b 5344{
c9ffd2ea
TG		 5345 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5346 struct bfd_mach_o_load_command *cmd;
5347 unsigned int num;
3af9a47b 5348
c9ffd2ea 5349 BFD_ASSERT (mdata != NULL);
3af9a47b
NC		 5350 BFD_ASSERT (mcommand != NULL);
5351
5352 num = 0;
c9ffd2ea 5353 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5354 {
3af9a47b
NC		 5355 if (cmd->type != type)
5356 continue;
5357
5358 if (num == 0)
c9ffd2ea 5359 *mcommand = cmd;
3af9a47b
NC		 5360 num++;
5361 }
5362
3af9a47b
NC		 5363 return num;
5364}
5365
5366unsigned long
116c20d2 5367bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
3af9a47b
NC		 5368{
5369 switch (type)
5370 {
5371 case BFD_MACH_O_CPU_TYPE_MC680x0:
5372 return 0x04000000;
5373 case BFD_MACH_O_CPU_TYPE_MC88000:
5374 return 0xffffe000;
5375 case BFD_MACH_O_CPU_TYPE_POWERPC:
5376 return 0xc0000000;
5377 case BFD_MACH_O_CPU_TYPE_I386:
5378 return 0xc0000000;
5379 case BFD_MACH_O_CPU_TYPE_SPARC:
5380 return 0xf0000000;
5381 case BFD_MACH_O_CPU_TYPE_I860:
5382 return 0;
5383 case BFD_MACH_O_CPU_TYPE_HPPA:
e84d6fca 5384 return 0xc0000000 - 0x04000000;
3af9a47b
NC		 5385 default:
5386 return 0;
5387 }
5388}
5389
ab76eeaf
IS		 5390/* The following two tables should be kept, as far as possible, in order of
5391 most frequently used entries to optimize their use from gas. */
5392
c5012cd8 5393const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
046b007d
TG		 5394{
5395 { "regular", BFD_MACH_O_S_REGULAR},
ab76eeaf 5396 { "coalesced", BFD_MACH_O_S_COALESCED},
046b007d
TG		 5397 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5398 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5399 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5400 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
ab76eeaf 5401 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
046b007d 5402 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
046b007d
TG		 5403 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5404 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
046b007d
TG		 5405 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5406 { "interposing", BFD_MACH_O_S_INTERPOSING},
046b007d 5407 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
ab76eeaf
IS		 5408 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5409 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
a4551119 5410 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
046b007d
TG		 5411 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5412 { NULL, 0}
5413};
5414
c5012cd8 5415const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
046b007d 5416{
ab76eeaf
IS		 5417 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5418 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
046b007d
TG		 5419 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5420 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
046b007d 5421 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
046b007d
TG		 5422 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5423 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5424 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5425 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
a4551119 5426 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
ab76eeaf 5427 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
046b007d
TG		 5428 { NULL, 0}
5429};
5430
a4551119 5431/* Get the section type from NAME. Return 256 if NAME is unknown. */
53d58d96
TG		 5432
5433unsigned int
ab76eeaf 5434bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
53d58d96 5435{
afbb9e17 5436 const bfd_mach_o_xlat_name *x;
ab76eeaf 5437 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
53d58d96
TG		 5438
5439 for (x = bfd_mach_o_section_type_name; x->name; x++)
5440 if (strcmp (x->name, name) == 0)
ab76eeaf
IS		 5441 {
5442 /* We found it... does the target support it? */
5443 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5444 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5445 return x->val; /* OK. */
5446 else
5447 break; /* Not supported. */
5448 }
a4551119
TG		 5449 /* Maximum section ID = 0xff. */
5450 return 256;
53d58d96
TG		 5451}
5452
5453/* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5454
5455unsigned int
5456bfd_mach_o_get_section_attribute_from_name (const char *name)
5457{
afbb9e17 5458 const bfd_mach_o_xlat_name *x;
53d58d96
TG		 5459
5460 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5461 if (strcmp (x->name, name) == 0)
5462 return x->val;
5463 return (unsigned int)-1;
5464}
5465
3af9a47b 5466int
116c20d2
NC		 5467bfd_mach_o_core_fetch_environment (bfd *abfd,
5468 unsigned char **rbuf,
5469 unsigned int *rlen)
3af9a47b 5470{
046b007d 5471 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 5472 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
c9ffd2ea 5473 bfd_mach_o_load_command *cmd;
3af9a47b 5474
c9ffd2ea 5475 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5476 {
c9ffd2ea 5477 bfd_mach_o_segment_command *seg;
3af9a47b 5478
c9ffd2ea 5479 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
3af9a47b
NC		 5480 continue;
5481
c9ffd2ea 5482 seg = &cmd->command.segment;
3af9a47b
NC		 5483
5484 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5485 {
5486 unsigned long start = seg->fileoff;
5487 unsigned long end = seg->fileoff + seg->filesize;
5488 unsigned char *buf = bfd_malloc (1024);
5489 unsigned long size = 1024;
5490
5491 for (;;)
5492 {
5493 bfd_size_type nread = 0;
5494 unsigned long offset;
5495 int found_nonnull = 0;
5496
5497 if (size > (end - start))
5498 size = (end - start);
5499
515ef31d
NC		 5500 buf = bfd_realloc_or_free (buf, size);
5501 if (buf == NULL)
5502 return -1;
c2f09c75
TG		 5503
5504 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5505 {
5506 free (buf);
5507 return -1;
5508 }
5509
3af9a47b 5510 nread = bfd_bread (buf, size, abfd);
a95a4550 5511
3af9a47b 5512 if (nread != size)
515ef31d
NC		 5513 {
5514 free (buf);
5515 return -1;
5516 }
a95a4550 5517
3af9a47b
NC		 5518 for (offset = 4; offset <= size; offset += 4)
5519 {
e84d6fca 5520 unsigned long val;
3af9a47b 5521
e84d6fca 5522 val = *((unsigned long *) (buf + size - offset));
3af9a47b
NC		 5523 if (! found_nonnull)
5524 {
5525 if (val != 0)
5526 found_nonnull = 1;
5527 }
5528 else if (val == 0x0)
5529 {
e84d6fca
AM		 5530 unsigned long bottom;
5531 unsigned long top;
3af9a47b 5532
e84d6fca
AM		 5533 bottom = seg->fileoff + seg->filesize - offset;
5534 top = seg->fileoff + seg->filesize - 4;
3af9a47b
NC		 5535 *rbuf = bfd_malloc (top - bottom);
5536 *rlen = top - bottom;
5537
5538 memcpy (*rbuf, buf + size - *rlen, *rlen);
515ef31d 5539 free (buf);
3af9a47b
NC		 5540 return 0;
5541 }
5542 }
5543
5544 if (size == (end - start))
5545 break;
5546
5547 size *= 2;
5548 }
515ef31d
NC		 5549
5550 free (buf);
3af9a47b
NC		 5551 }
5552 }
5553
5554 return -1;
5555}
5556
5557char *
116c20d2 5558bfd_mach_o_core_file_failing_command (bfd *abfd)
3af9a47b
NC		 5559{
5560 unsigned char *buf = NULL;
5561 unsigned int len = 0;
452216ab 5562 int ret;
3af9a47b
NC		 5563
5564 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5565 if (ret < 0)
5566 return NULL;
5567
f075ee0c 5568 return (char *) buf;
3af9a47b
NC		 5569}
5570
5571int
116c20d2 5572bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
3af9a47b
NC		 5573{
5574 return 0;
5575}
5576
2ca7691a
TG		 5577static bfd_mach_o_uuid_command *
5578bfd_mach_o_lookup_uuid_command (bfd *abfd)
5579{
5580 bfd_mach_o_load_command *uuid_cmd;
5581 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5582 if (ncmd != 1)
5583 return FALSE;
5584 return &uuid_cmd->command.uuid;
5585}
5586
5587/* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5588
5589static bfd_boolean
5590bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5591{
5592 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5593
5594 BFD_ASSERT (abfd);
5595 BFD_ASSERT (uuid_cmd);
5596
5597 if (!bfd_check_format (abfd, bfd_object))
5598 return FALSE;
5599
5600 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5601 || bfd_mach_o_get_data (abfd) == NULL
5602 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5603 return FALSE;
5604
5605 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5606 if (dsym_uuid_cmd == NULL)
5607 return FALSE;
5608
5609 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5610 sizeof (uuid_cmd->uuid)) != 0)
5611 return FALSE;
5612
5613 return TRUE;
5614}
5615
5616/* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5617 The caller is responsible for closing the returned BFD object and
5618 its my_archive if the returned BFD is in a fat dSYM. */
5619
5620static bfd *
5621bfd_mach_o_find_dsym (const char *dsym_filename,
5622 const bfd_mach_o_uuid_command *uuid_cmd,
5623 const bfd_arch_info_type *arch)
5624{
5625 bfd *base_dsym_bfd, *dsym_bfd;
5626
5627 BFD_ASSERT (uuid_cmd);
5628
5629 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5630 if (base_dsym_bfd == NULL)
5631 return NULL;
5632
5633 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5634 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5635 return dsym_bfd;
5636
5637 bfd_close (dsym_bfd);
5638 if (base_dsym_bfd != dsym_bfd)
5639 bfd_close (base_dsym_bfd);
5640
5641 return NULL;
5642}
5643
5644/* Return a BFD created from a dSYM file for ABFD.
5645 The caller is responsible for closing the returned BFD object, its
5646 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5647
5648static bfd *
5649bfd_mach_o_follow_dsym (bfd *abfd)
5650{
5651 char *dsym_filename;
5652 bfd_mach_o_uuid_command *uuid_cmd;
5653 bfd *dsym_bfd, *base_bfd = abfd;
5654 const char *base_basename;
5655
5656 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5657 return NULL;
5658
5659 if (abfd->my_archive)
5660 base_bfd = abfd->my_archive;
5661 /* BFD may have been opened from a stream. */
5662 if (base_bfd->filename == NULL)
5663 {
5664 bfd_set_error (bfd_error_invalid_operation);
5665 return NULL;
5666 }
5667 base_basename = lbasename (base_bfd->filename);
5668
5669 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5670 if (uuid_cmd == NULL)
5671 return NULL;
5672
5673 /* TODO: We assume the DWARF file has the same as the binary's.
5674 It seems apple's GDB checks all files in the dSYM bundle directory.
5675 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5676 */
5677 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5678 + strlen (dsym_subdir) + 1
5679 + strlen (base_basename) + 1);
5680 sprintf (dsym_filename, "%s%s/%s",
5681 base_bfd->filename, dsym_subdir, base_basename);
5682
5683 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5684 bfd_get_arch_info (abfd));
5685 if (dsym_bfd == NULL)
5686 free (dsym_filename);
5687
5688 return dsym_bfd;
5689}
5690
d9071b0c
TG		 5691bfd_boolean
5692bfd_mach_o_find_nearest_line (bfd *abfd,
d9071b0c 5693 asymbol **symbols,
fb167eb2 5694 asection *section,
d9071b0c
TG		 5695 bfd_vma offset,
5696 const char **filename_ptr,
5697 const char **functionname_ptr,
fb167eb2
AM		 5698 unsigned int *line_ptr,
5699 unsigned int *discriminator_ptr)
d9071b0c
TG		 5700{
5701 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2ca7691a 5702 if (mdata == NULL)
d9071b0c 5703 return FALSE;
2ca7691a
TG		 5704 switch (mdata->header.filetype)
5705 {
5706 case BFD_MACH_O_MH_OBJECT:
5707 break;
5708 case BFD_MACH_O_MH_EXECUTE:
5709 case BFD_MACH_O_MH_DYLIB:
5710 case BFD_MACH_O_MH_BUNDLE:
5711 case BFD_MACH_O_MH_KEXT_BUNDLE:
5712 if (mdata->dwarf2_find_line_info == NULL)
5713 {
5714 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5715 /* When we couldn't find dSYM for this binary, we look for
5716 the debug information in the binary itself. In this way,
5717 we won't try finding separated dSYM again because
5718 mdata->dwarf2_find_line_info will be filled. */
5719 if (! mdata->dsym_bfd)
5720 break;
5721 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5722 dwarf_debug_sections, symbols,
93ee1e36
AM		 5723 &mdata->dwarf2_find_line_info,
5724 FALSE))
2ca7691a
TG		 5725 return FALSE;
5726 }
5727 break;
5728 default:
5729 return FALSE;
5730 }
fb167eb2
AM		 5731 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5732 filename_ptr, functionname_ptr,
5733 line_ptr, discriminator_ptr,
5734 dwarf_debug_sections, 0,
5735 &mdata->dwarf2_find_line_info);
d9071b0c
TG		 5736}
5737
5738bfd_boolean
5739bfd_mach_o_close_and_cleanup (bfd *abfd)
5740{
5741 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5742 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
4434114c
TG		 5743 {
5744 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5745 bfd_mach_o_free_cached_info (abfd);
2ca7691a
TG		 5746 if (mdata->dsym_bfd != NULL)
5747 {
5748 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5749 char *dsym_filename = (char *)(fat_bfd
5750 ? fat_bfd->filename
5751 : mdata->dsym_bfd->filename);
5752 bfd_close (mdata->dsym_bfd);
5753 mdata->dsym_bfd = NULL;
5754 if (fat_bfd)
5755 bfd_close (fat_bfd);
5756 free (dsym_filename);
5757 }
4434114c 5758 }
dff55db0 5759
8c746b96
AM		 5760 if (bfd_get_format (abfd) == bfd_archive
5761 && abfd->xvec == &mach_o_fat_vec)
5762 return TRUE;
d9071b0c
TG		 5763 return _bfd_generic_close_and_cleanup (abfd);
5764}
5765
dff55db0
TG		 5766bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
5767{
5768 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5769 asection *asect;
5770 free (mdata->dyn_reloc_cache);
5771 mdata->dyn_reloc_cache = NULL;
5772 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5773 {
5774 free (asect->relocation);
5775 asect->relocation = NULL;
5776 }
5777
5778 return TRUE;
5779}
5780
68ffbac6 5781#define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
92bc0e80
TG		 5782#define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5783
5784#define bfd_mach_o_swap_reloc_in NULL
5785#define bfd_mach_o_swap_reloc_out NULL
b32e07d7 5786#define bfd_mach_o_print_thread NULL
a4551119 5787#define bfd_mach_o_tgt_seg_table NULL
ab76eeaf 5788#define bfd_mach_o_section_type_valid_for_tgt NULL
92bc0e80 5789
116c20d2
NC		 5790#define TARGET_NAME mach_o_be_vec
5791#define TARGET_STRING "mach-o-be"
42fa0891 5792#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 5793#define TARGET_PAGESIZE 1
116c20d2
NC		 5794#define TARGET_BIG_ENDIAN 1
5795#define TARGET_ARCHIVE 0
b93a1992 5796#define TARGET_PRIORITY 1
3af9a47b
NC		 5797#include "mach-o-target.c"
5798
5799#undef TARGET_NAME
5800#undef TARGET_STRING
42fa0891 5801#undef TARGET_ARCHITECTURE
4384b284 5802#undef TARGET_PAGESIZE
3af9a47b
NC		 5803#undef TARGET_BIG_ENDIAN
5804#undef TARGET_ARCHIVE
b93a1992 5805#undef TARGET_PRIORITY
3af9a47b 5806
116c20d2
NC		 5807#define TARGET_NAME mach_o_le_vec
5808#define TARGET_STRING "mach-o-le"
42fa0891 5809#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 5810#define TARGET_PAGESIZE 1
116c20d2
NC		 5811#define TARGET_BIG_ENDIAN 0
5812#define TARGET_ARCHIVE 0
b93a1992 5813#define TARGET_PRIORITY 1
3af9a47b
NC		 5814
5815#include "mach-o-target.c"
5816
5817#undef TARGET_NAME
5818#undef TARGET_STRING
42fa0891 5819#undef TARGET_ARCHITECTURE
4384b284 5820#undef TARGET_PAGESIZE
3af9a47b
NC		 5821#undef TARGET_BIG_ENDIAN
5822#undef TARGET_ARCHIVE
b93a1992 5823#undef TARGET_PRIORITY
3af9a47b 5824
8f95b6e4
TG		 5825/* Not yet handled: creating an archive. */
5826#define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
5827
5828/* Not used. */
5829#define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
5830#define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
5831#define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
5832#define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
5833#define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
5834#define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
5835#define bfd_mach_o_write_armap _bfd_noarchive_write_armap
5836#define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
15bbba8d 5837#define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
8f95b6e4
TG		 5838#define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
5839
116c20d2
NC		 5840#define TARGET_NAME mach_o_fat_vec
5841#define TARGET_STRING "mach-o-fat"
42fa0891 5842#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 5843#define TARGET_PAGESIZE 1
116c20d2
NC		 5844#define TARGET_BIG_ENDIAN 1
5845#define TARGET_ARCHIVE 1
b93a1992 5846#define TARGET_PRIORITY 0
3af9a47b
NC		 5847
5848#include "mach-o-target.c"
5849
5850#undef TARGET_NAME
5851#undef TARGET_STRING
42fa0891 5852#undef TARGET_ARCHITECTURE
4384b284 5853#undef TARGET_PAGESIZE
3af9a47b
NC		 5854#undef TARGET_BIG_ENDIAN
5855#undef TARGET_ARCHIVE
b93a1992 5856#undef TARGET_PRIORITY
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