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Remove last traces of discard_all_inferiors
[deliverable/binutils-gdb.git] / bfd / mach-o.c
CommitLineData
3af9a47b 1/* Mach-O support for BFD.
b3adc24a 2 Copyright (C) 1999-2020 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"
7a6e0d89 22#include <limits.h>
3af9a47b 23#include "bfd.h"
3af9a47b
NC		 24#include "libbfd.h"
25#include "libiberty.h"
2d5d5a8f 26#include "mach-o.h"
15e1c58a 27#include "aout/stab_gnu.h"
46d1c23b
TG		 28#include "mach-o/reloc.h"
29#include "mach-o/external.h"
3af9a47b 30#include <ctype.h>
7f307238
IS		 31#include <stdlib.h>
32#include <string.h>
3af9a47b 33
154a1ee5
TG		 34#define bfd_mach_o_object_p bfd_mach_o_gen_object_p
35#define bfd_mach_o_core_p bfd_mach_o_gen_core_p
42fa0891 36#define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject
116c20d2 37
92bc0e80 38#define FILE_ALIGN(off, algn) \
b6518b38 39 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn)))
92bc0e80 40
c9ffd2ea
TG		 41static bfd_boolean
42bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd);
43
c2f09c75 44unsigned int
1e8a024a
TG		 45bfd_mach_o_version (bfd *abfd)
46{
47 bfd_mach_o_data_struct *mdata = NULL;
48
49 BFD_ASSERT (bfd_mach_o_valid (abfd));
046b007d 50 mdata = bfd_mach_o_get_data (abfd);
1e8a024a
TG		 51
52 return mdata->header.version;
53}
54
b34976b6 55bfd_boolean
116c20d2 56bfd_mach_o_valid (bfd *abfd)
3af9a47b
NC		 57{
58 if (abfd == NULL || abfd->xvec == NULL)
154a1ee5 59 return FALSE;
3af9a47b 60
154a1ee5
TG		 61 if (abfd->xvec->flavour != bfd_target_mach_o_flavour)
62 return FALSE;
3af9a47b 63
046b007d 64 if (bfd_mach_o_get_data (abfd) == NULL)
154a1ee5
TG		 65 return FALSE;
66 return TRUE;
67}
68
c2f09c75
TG		 69static INLINE bfd_boolean
70mach_o_wide_p (bfd_mach_o_header *header)
71{
72 switch (header->version)
73 {
74 case 1:
75 return FALSE;
76 case 2:
77 return TRUE;
78 default:
79 BFD_FAIL ();
80 return FALSE;
81 }
82}
83
84static INLINE bfd_boolean
85bfd_mach_o_wide_p (bfd *abfd)
86{
046b007d 87 return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header);
c2f09c75 88}
68ffbac6 89
154a1ee5
TG		 90/* Tables to translate well known Mach-O segment/section names to bfd
91 names. Use of canonical names (such as .text or .debug_frame) is required
92 by gdb. */
93
a4551119
TG		 94/* __TEXT Segment. */
95static const mach_o_section_name_xlat text_section_names_xlat[] =
154a1ee5 96 {
68ffbac6 97 { ".text", "__text",
a4551119
TG		 98 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
99 BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0},
100 { ".const", "__const",
101 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
102 BFD_MACH_O_S_ATTR_NONE, 0},
103 { ".static_const", "__static_const",
104 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
105 BFD_MACH_O_S_ATTR_NONE, 0},
106 { ".cstring", "__cstring",
107 SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS,
108 BFD_MACH_O_S_CSTRING_LITERALS,
109 BFD_MACH_O_S_ATTR_NONE, 0},
110 { ".literal4", "__literal4",
111 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS,
112 BFD_MACH_O_S_ATTR_NONE, 2},
113 { ".literal8", "__literal8",
114 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS,
115 BFD_MACH_O_S_ATTR_NONE, 3},
116 { ".literal16", "__literal16",
117 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS,
118 BFD_MACH_O_S_ATTR_NONE, 4},
119 { ".constructor", "__constructor",
120 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
121 BFD_MACH_O_S_ATTR_NONE, 0},
122 { ".destructor", "__destructor",
123 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
124 BFD_MACH_O_S_ATTR_NONE, 0},
125 { ".eh_frame", "__eh_frame",
632039e0 126 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED,
a4551119
TG		 127 BFD_MACH_O_S_ATTR_LIVE_SUPPORT
128 | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
632039e0 129 | BFD_MACH_O_S_ATTR_NO_TOC, 2},
a4551119 130 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 131 };
132
a4551119
TG		 133/* __DATA Segment. */
134static const mach_o_section_name_xlat data_section_names_xlat[] =
154a1ee5 135 {
a4551119
TG		 136 { ".data", "__data",
137 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
138 BFD_MACH_O_S_ATTR_NONE, 0},
139 { ".bss", "__bss",
140 SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL,
141 BFD_MACH_O_S_ATTR_NONE, 0},
142 { ".const_data", "__const",
143 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
144 BFD_MACH_O_S_ATTR_NONE, 0},
145 { ".static_data", "__static_data",
146 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
147 BFD_MACH_O_S_ATTR_NONE, 0},
148 { ".mod_init_func", "__mod_init_func",
149 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS,
150 BFD_MACH_O_S_ATTR_NONE, 2},
151 { ".mod_term_func", "__mod_term_func",
152 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS,
153 BFD_MACH_O_S_ATTR_NONE, 2},
154 { ".dyld", "__dyld",
155 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
156 BFD_MACH_O_S_ATTR_NONE, 0},
157 { ".cfstring", "__cfstring",
158 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
159 BFD_MACH_O_S_ATTR_NONE, 2},
160 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 161 };
162
a4551119
TG		 163/* __DWARF Segment. */
164static const mach_o_section_name_xlat dwarf_section_names_xlat[] =
154a1ee5 165 {
a4551119
TG		 166 { ".debug_frame", "__debug_frame",
167 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
168 BFD_MACH_O_S_ATTR_DEBUG, 0},
169 { ".debug_info", "__debug_info",
170 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
171 BFD_MACH_O_S_ATTR_DEBUG, 0},
172 { ".debug_abbrev", "__debug_abbrev",
173 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
174 BFD_MACH_O_S_ATTR_DEBUG, 0},
175 { ".debug_aranges", "__debug_aranges",
176 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
177 BFD_MACH_O_S_ATTR_DEBUG, 0},
178 { ".debug_macinfo", "__debug_macinfo",
179 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
180 BFD_MACH_O_S_ATTR_DEBUG, 0},
181 { ".debug_line", "__debug_line",
182 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
183 BFD_MACH_O_S_ATTR_DEBUG, 0},
184 { ".debug_loc", "__debug_loc",
185 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
186 BFD_MACH_O_S_ATTR_DEBUG, 0},
187 { ".debug_pubnames", "__debug_pubnames",
188 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
189 BFD_MACH_O_S_ATTR_DEBUG, 0},
190 { ".debug_pubtypes", "__debug_pubtypes",
191 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
192 BFD_MACH_O_S_ATTR_DEBUG, 0},
193 { ".debug_str", "__debug_str",
194 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
195 BFD_MACH_O_S_ATTR_DEBUG, 0},
196 { ".debug_ranges", "__debug_ranges",
197 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
198 BFD_MACH_O_S_ATTR_DEBUG, 0},
199 { ".debug_macro", "__debug_macro",
200 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
201 BFD_MACH_O_S_ATTR_DEBUG, 0},
671a6cbe
NC		 202 { ".debug_gdb_scripts", "__debug_gdb_scri",
203 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
204 BFD_MACH_O_S_ATTR_DEBUG, 0},
a4551119 205 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 206 };
207
a4551119
TG		 208/* __OBJC Segment. */
209static const mach_o_section_name_xlat objc_section_names_xlat[] =
210 {
211 { ".objc_class", "__class",
212 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
213 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
214 { ".objc_meta_class", "__meta_class",
215 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
216 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
217 { ".objc_cat_cls_meth", "__cat_cls_meth",
218 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
219 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
220 { ".objc_cat_inst_meth", "__cat_inst_meth",
221 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
222 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
223 { ".objc_protocol", "__protocol",
224 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
225 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
226 { ".objc_string_object", "__string_object",
227 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
228 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
229 { ".objc_cls_meth", "__cls_meth",
230 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
231 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
232 { ".objc_inst_meth", "__inst_meth",
233 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
234 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
235 { ".objc_cls_refs", "__cls_refs",
236 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
237 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
238 { ".objc_message_refs", "__message_refs",
239 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
240 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
241 { ".objc_symbols", "__symbols",
242 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
243 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
244 { ".objc_category", "__category",
245 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
246 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
247 { ".objc_class_vars", "__class_vars",
248 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
249 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
250 { ".objc_instance_vars", "__instance_vars",
251 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
252 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
253 { ".objc_module_info", "__module_info",
254 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
255 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
256 { ".objc_selector_strs", "__selector_strs",
257 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS,
258 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
259 { ".objc_image_info", "__image_info",
260 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
261 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
262 { ".objc_selector_fixup", "__sel_fixup",
263 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
264 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
265 /* Objc V1 */
266 { ".objc1_class_ext", "__class_ext",
267 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
268 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
269 { ".objc1_property_list", "__property",
270 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
271 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
272 { ".objc1_protocol_ext", "__protocol_ext",
273 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
274 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
275 { NULL, NULL, 0, 0, 0, 0}
276 };
5a5cbf72 277
a4551119 278static const mach_o_segment_name_xlat segsec_names_xlat[] =
154a1ee5 279 {
154a1ee5
TG		 280 { "__TEXT", text_section_names_xlat },
281 { "__DATA", data_section_names_xlat },
5a5cbf72 282 { "__DWARF", dwarf_section_names_xlat },
a4551119 283 { "__OBJC", objc_section_names_xlat },
154a1ee5
TG		 284 { NULL, NULL }
285 };
286
2ca7691a
TG		 287static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF";
288
a4551119
TG		 289/* For both cases bfd-name => mach-o name and vice versa, the specific target
290 is checked before the generic. This allows a target (e.g. ppc for cstring)
291 to override the generic definition with a more specific one. */
154a1ee5 292
a4551119
TG		 293/* Fetch the translation from a Mach-O section designation (segment, section)
294 as a bfd short name, if one exists. Otherwise return NULL.
68ffbac6 295
a4551119
TG		 296 Allow the segment and section names to be unterminated 16 byte arrays. */
297
298const mach_o_section_name_xlat *
299bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname,
300 const char *sectname)
154a1ee5
TG		 301{
302 const struct mach_o_segment_name_xlat *seg;
a4551119
TG		 303 const mach_o_section_name_xlat *sec;
304 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
154a1ee5 305
a4551119
TG		 306 /* First try any target-specific translations defined... */
307 if (bed->segsec_names_xlat)
308 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
309 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
310 for (sec = seg->sections; sec->mach_o_name; sec++)
311 if (strncmp (sec->mach_o_name, sectname,
312 BFD_MACH_O_SECTNAME_SIZE) == 0)
313 return sec;
8462aec7 314
a4551119 315 /* ... and then the Mach-O generic ones. */
154a1ee5 316 for (seg = segsec_names_xlat; seg->segname; seg++)
a4551119
TG		 317 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
318 for (sec = seg->sections; sec->mach_o_name; sec++)
07d6d2b8 319 if (strncmp (sec->mach_o_name, sectname,
a4551119 320 BFD_MACH_O_SECTNAME_SIZE) == 0)
07d6d2b8 321 return sec;
154a1ee5 322
68ffbac6 323 return NULL;
53d58d96
TG		 324}
325
a4551119 326/* If the bfd_name for this section is a 'canonical' form for which we
68ffbac6 327 know the Mach-O data, return the segment name and the data for the
a4551119 328 Mach-O equivalent. Otherwise return NULL. */
7ba695a9 329
a4551119
TG		 330const mach_o_section_name_xlat *
331bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name,
332 const char **segname)
53d58d96 333{
a4551119
TG		 334 const struct mach_o_segment_name_xlat *seg;
335 const mach_o_section_name_xlat *sec;
336 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
337 *segname = NULL;
338
339 if (bfd_name[0] != '.')
340 return NULL;
341
342 /* First try any target-specific translations defined... */
343 if (bed->segsec_names_xlat)
344 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
345 for (sec = seg->sections; sec->bfd_name; sec++)
346 if (strcmp (bfd_name, sec->bfd_name) == 0)
347 {
348 *segname = seg->segname;
349 return sec;
350 }
351
352 /* ... and then the Mach-O generic ones. */
353 for (seg = segsec_names_xlat; seg->segname; seg++)
354 for (sec = seg->sections; sec->bfd_name; sec++)
355 if (strcmp (bfd_name, sec->bfd_name) == 0)
356 {
357 *segname = seg->segname;
358 return sec;
359 }
360
68ffbac6 361 return NULL;
a4551119
TG		 362}
363
364/* Convert Mach-O section name to BFD.
365
68ffbac6 366 Try to use standard/canonical names, for which we have tables including
a4551119
TG		 367 default flag settings - which are returned. Otherwise forge a new name
368 in the form "<segmentname>.<sectionname>" this will be prefixed with
369 LC_SEGMENT. if the segment name does not begin with an underscore.
370
371 SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL-
372 terminated if the name length is exactly 16 bytes - but must be if the name
373 length is less than 16 characters). */
374
375void
376bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname,
377 const char *secname, const char **name,
378 flagword *flags)
379{
380 const mach_o_section_name_xlat *xlat;
53d58d96
TG		 381 char *res;
382 unsigned int len;
383 const char *pfx = "";
384
a4551119
TG		 385 *name = NULL;
386 *flags = SEC_NO_FLAGS;
53d58d96 387
68ffbac6 388 /* First search for a canonical name...
a4551119
TG		 389 xlat will be non-null if there is an entry for segname, secname. */
390 xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname);
391 if (xlat)
392 {
393 len = strlen (xlat->bfd_name);
64d29018 394 res = bfd_alloc (abfd, len + 1);
a4551119
TG		 395 if (res == NULL)
396 return;
397 memcpy (res, xlat->bfd_name, len+1);
398 *name = res;
399 *flags = xlat->bfd_flags;
400 return;
401 }
402
403 /* ... else we make up a bfd name from the segment concatenated with the
404 section. */
154a1ee5 405
7ba695a9 406 len = 16 + 1 + 16 + 1;
154a1ee5 407
c2f09c75
TG		 408 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
409 with an underscore. */
f1bde64c 410 if (segname[0] != '_')
c2f09c75
TG		 411 {
412 static const char seg_pfx[] = "LC_SEGMENT.";
413
414 pfx = seg_pfx;
415 len += sizeof (seg_pfx) - 1;
416 }
417
154a1ee5
TG		 418 res = bfd_alloc (abfd, len);
419 if (res == NULL)
8462aec7 420 return;
a4551119 421 snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname);
8462aec7 422 *name = res;
154a1ee5
TG		 423}
424
a4551119 425/* Convert a bfd section name to a Mach-O segment + section name.
154a1ee5 426
a4551119
TG		 427 If the name is a canonical one for which we have a Darwin match
428 return the translation table - which contains defaults for flags,
429 type, attribute and default alignment data.
430
68ffbac6 431 Otherwise, expand the bfd_name (assumed to be in the form
a4551119
TG		 432 "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
433
434static const mach_o_section_name_xlat *
154a1ee5 435bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
07d6d2b8
AM		 436 asection *sect,
437 bfd_mach_o_section *section)
154a1ee5 438{
a4551119 439 const mach_o_section_name_xlat *xlat;
fd361982 440 const char *name = bfd_section_name (sect);
a4551119 441 const char *segname;
154a1ee5
TG		 442 const char *dot;
443 unsigned int len;
444 unsigned int seglen;
445 unsigned int seclen;
446
a4551119
TG		 447 memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1);
448 memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1);
449
450 /* See if is a canonical name ... */
451 xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname);
452 if (xlat)
453 {
454 strcpy (section->segname, segname);
455 strcpy (section->sectname, xlat->mach_o_name);
456 return xlat;
457 }
154a1ee5 458
a4551119
TG		 459 /* .. else we convert our constructed one back to Mach-O.
460 Strip LC_SEGMENT. prefix, if present. */
154a1ee5
TG		 461 if (strncmp (name, "LC_SEGMENT.", 11) == 0)
462 name += 11;
463
464 /* Find a dot. */
465 dot = strchr (name, '.');
466 len = strlen (name);
467
468 /* Try to split name into segment and section names. */
469 if (dot && dot != name)
470 {
471 seglen = dot - name;
472 seclen = len - (dot + 1 - name);
473
ca148c5a
TG		 474 if (seglen <= BFD_MACH_O_SEGNAME_SIZE
475 && seclen <= BFD_MACH_O_SECTNAME_SIZE)
07d6d2b8
AM		 476 {
477 memcpy (section->segname, name, seglen);
478 section->segname[seglen] = 0;
479 memcpy (section->sectname, dot + 1, seclen);
480 section->sectname[seclen] = 0;
481 return NULL;
482 }
154a1ee5
TG		 483 }
484
a4551119
TG		 485 /* The segment and section names are both missing - don't make them
486 into dots. */
487 if (dot && dot == name)
488 return NULL;
489
490 /* Just duplicate the name into both segment and section. */
154a1ee5
TG		 491 if (len > 16)
492 len = 16;
493 memcpy (section->segname, name, len);
494 section->segname[len] = 0;
495 memcpy (section->sectname, name, len);
496 section->sectname[len] = 0;
a4551119 497 return NULL;
3af9a47b
NC		 498}
499
b2b62060
TG		 500/* Return the size of an entry for section SEC.
501 Must be called only for symbol pointer section and symbol stubs
502 sections. */
503
c5012cd8 504unsigned int
b2b62060
TG		 505bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec)
506{
507 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
508 {
509 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
510 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
511 return bfd_mach_o_wide_p (abfd) ? 8 : 4;
512 case BFD_MACH_O_S_SYMBOL_STUBS:
513 return sec->reserved2;
514 default:
515 BFD_FAIL ();
516 return 0;
517 }
518}
519
520/* Return the number of indirect symbols for a section.
521 Must be called only for symbol pointer section and symbol stubs
522 sections. */
523
c5012cd8 524unsigned int
b2b62060
TG		 525bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec)
526{
527 unsigned int elsz;
528
529 elsz = bfd_mach_o_section_get_entry_size (abfd, sec);
530 if (elsz == 0)
531 return 0;
532 else
533 return sec->size / elsz;
534}
535
c9ffd2ea
TG		 536/* Append command CMD to ABFD. Note that header.ncmds is not updated. */
537
538static void
539bfd_mach_o_append_command (bfd *abfd, bfd_mach_o_load_command *cmd)
540{
541 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
542
543 if (mdata->last_command != NULL)
544 mdata->last_command->next = cmd;
545 else
546 mdata->first_command = cmd;
547 mdata->last_command = cmd;
548 cmd->next = NULL;
549}
b2b62060 550
3af9a47b
NC		 551/* Copy any private info we understand from the input symbol
552 to the output symbol. */
553
154a1ee5 554bfd_boolean
116c20d2 555bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
b22161d6 556 asymbol *isymbol,
116c20d2 557 bfd *obfd ATTRIBUTE_UNUSED,
b22161d6
IS		 558 asymbol *osymbol)
559{
560 bfd_mach_o_asymbol *os, *is;
c9ffd2ea 561
b22161d6
IS		 562 os = (bfd_mach_o_asymbol *)osymbol;
563 is = (bfd_mach_o_asymbol *)isymbol;
564 os->n_type = is->n_type;
565 os->n_sect = is->n_sect;
566 os->n_desc = is->n_desc;
567 os->symbol.udata.i = is->symbol.udata.i;
c9ffd2ea 568
b34976b6 569 return TRUE;
3af9a47b
NC		 570}
571
572/* Copy any private info we understand from the input section
573 to the output section. */
574
154a1ee5 575bfd_boolean
c9ffd2ea
TG		 576bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection,
577 bfd *obfd, asection *osection)
a4551119 578{
c9ffd2ea
TG		 579 bfd_mach_o_section *os = bfd_mach_o_get_mach_o_section (osection);
580 bfd_mach_o_section *is = bfd_mach_o_get_mach_o_section (isection);
68ffbac6 581
c9ffd2ea
TG		 582 if (ibfd->xvec->flavour != bfd_target_mach_o_flavour
583 || obfd->xvec->flavour != bfd_target_mach_o_flavour)
584 return TRUE;
585
586 BFD_ASSERT (is != NULL && os != NULL);
587
588 os->flags = is->flags;
589 os->reserved1 = is->reserved1;
590 os->reserved2 = is->reserved2;
591 os->reserved3 = is->reserved3;
a4551119 592
b34976b6 593 return TRUE;
3af9a47b
NC		 594}
595
c6643fcc
NC		 596static const char *
597cputype (unsigned long value)
598{
599 switch (value)
600 {
601 case BFD_MACH_O_CPU_TYPE_VAX: return "VAX";
602 case BFD_MACH_O_CPU_TYPE_MC680x0: return "MC68k";
603 case BFD_MACH_O_CPU_TYPE_I386: return "I386";
604 case BFD_MACH_O_CPU_TYPE_MIPS: return "MIPS";
605 case BFD_MACH_O_CPU_TYPE_MC98000: return "MC98k";
606 case BFD_MACH_O_CPU_TYPE_HPPA: return "HPPA";
607 case BFD_MACH_O_CPU_TYPE_ARM: return "ARM";
608 case BFD_MACH_O_CPU_TYPE_MC88000: return "MC88K";
609 case BFD_MACH_O_CPU_TYPE_SPARC: return "SPARC";
610 case BFD_MACH_O_CPU_TYPE_I860: return "I860";
611 case BFD_MACH_O_CPU_TYPE_ALPHA: return "ALPHA";
612 case BFD_MACH_O_CPU_TYPE_POWERPC: return "PPC";
613 case BFD_MACH_O_CPU_TYPE_POWERPC_64: return "PPC64";
614 case BFD_MACH_O_CPU_TYPE_X86_64: return "X86_64";
615 case BFD_MACH_O_CPU_TYPE_ARM64: return "ARM64";
616 default: return _("<unknown>");
617 }
618}
619
620static const char *
4bb7a87e 621cpusubtype (unsigned long cpu_type, unsigned long cpu_subtype)
c6643fcc
NC		 622{
623 static char buffer[128];
624
625 buffer[0] = 0;
4bb7a87e 626 switch (cpu_subtype & BFD_MACH_O_CPU_SUBTYPE_MASK)
c6643fcc
NC		 627 {
628 case 0:
629 break;
630 case BFD_MACH_O_CPU_SUBTYPE_LIB64:
631 sprintf (buffer, " (LIB64)"); break;
632 default:
633 sprintf (buffer, _("<unknown mask flags>")); break;
634 }
635
4bb7a87e 636 cpu_subtype &= ~ BFD_MACH_O_CPU_SUBTYPE_MASK;
c6643fcc 637
4bb7a87e 638 switch (cpu_type)
c6643fcc
NC		 639 {
640 case BFD_MACH_O_CPU_TYPE_X86_64:
641 case BFD_MACH_O_CPU_TYPE_I386:
4bb7a87e 642 switch (cpu_subtype)
c6643fcc
NC		 643 {
644 case BFD_MACH_O_CPU_SUBTYPE_X86_ALL:
645 return strcat (buffer, " (X86_ALL)");
646 default:
647 break;
648 }
649 break;
4b24dd1a 650
c6643fcc 651 case BFD_MACH_O_CPU_TYPE_ARM:
4bb7a87e 652 switch (cpu_subtype)
c6643fcc
NC		 653 {
654 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
655 return strcat (buffer, " (ARM_ALL)");
656 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
657 return strcat (buffer, " (ARM_V4T)");
658 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
659 return strcat (buffer, " (ARM_V6)");
660 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
661 return strcat (buffer, " (ARM_V5TEJ)");
662 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
663 return strcat (buffer, " (ARM_XSCALE)");
664 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
665 return strcat (buffer, " (ARM_V7)");
666 default:
667 break;
668 }
669 break;
4b24dd1a 670
c6643fcc 671 case BFD_MACH_O_CPU_TYPE_ARM64:
4bb7a87e 672 switch (cpu_subtype)
c6643fcc
NC		 673 {
674 case BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL:
675 return strcat (buffer, " (ARM64_ALL)");
676 case BFD_MACH_O_CPU_SUBTYPE_ARM64_V8:
677 return strcat (buffer, " (ARM64_V8)");
678 default:
679 break;
680 }
681 break;
682
683 default:
684 break;
685 }
686
4bb7a87e 687 if (cpu_subtype != 0)
c6643fcc
NC		 688 return strcat (buffer, _(" (<unknown>)"));
689
690 return buffer;
691}
692
693bfd_boolean
694bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, void *ptr)
695{
696 FILE * file = (FILE *) ptr;
697 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
698
699 fprintf (file, _(" MACH-O header:\n"));
700 fprintf (file, _(" magic: %#lx\n"), (long) mdata->header.magic);
701 fprintf (file, _(" cputype: %#lx (%s)\n"), (long) mdata->header.cputype,
702 cputype (mdata->header.cputype));
703 fprintf (file, _(" cpusubtype: %#lx%s\n"), (long) mdata->header.cpusubtype,
704 cpusubtype (mdata->header.cputype, mdata->header.cpusubtype));
705 fprintf (file, _(" filetype: %#lx\n"), (long) mdata->header.filetype);
706 fprintf (file, _(" ncmds: %#lx\n"), (long) mdata->header.ncmds);
707 fprintf (file, _(" sizeocmds: %#lx\n"), (long) mdata->header.sizeofcmds);
708 fprintf (file, _(" flags: %#lx\n"), (long) mdata->header.flags);
709 fprintf (file, _(" version: %x\n"), mdata->header.version);
4b24dd1a 710
c6643fcc
NC		 711 return TRUE;
712}
713
3af9a47b
NC		 714/* Copy any private info we understand from the input bfd
715 to the output bfd. */
716
154a1ee5 717bfd_boolean
967b2c53 718bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd)
3af9a47b 719{
c9ffd2ea
TG		 720 bfd_mach_o_data_struct *imdata;
721 bfd_mach_o_data_struct *omdata;
722 bfd_mach_o_load_command *icmd;
723
154a1ee5
TG		 724 if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
725 || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
726 return TRUE;
727
3af9a47b
NC		 728 BFD_ASSERT (bfd_mach_o_valid (ibfd));
729 BFD_ASSERT (bfd_mach_o_valid (obfd));
730
c9ffd2ea
TG		 731 imdata = bfd_mach_o_get_data (ibfd);
732 omdata = bfd_mach_o_get_data (obfd);
733
734 /* Copy header flags. */
735 omdata->header.flags = imdata->header.flags;
736
c6643fcc
NC		 737 /* PR 23299. Copy the cputype. */
738 if (imdata->header.cputype != omdata->header.cputype)
739 {
740 if (omdata->header.cputype == 0)
741 omdata->header.cputype = imdata->header.cputype;
742 else if (imdata->header.cputype != 0)
743 /* Urg - what has happened ? */
744 _bfd_error_handler (_("incompatible cputypes in mach-o files: %ld vs %ld"),
745 (long) imdata->header.cputype,
746 (long) omdata->header.cputype);
747 }
748
749 /* Copy the cpusubtype. */
750 omdata->header.cpusubtype = imdata->header.cpusubtype;
4b24dd1a 751
c9ffd2ea
TG		 752 /* Copy commands. */
753 for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next)
754 {
755 bfd_mach_o_load_command *ocmd;
756
757 switch (icmd->type)
758 {
759 case BFD_MACH_O_LC_LOAD_DYLIB:
760 case BFD_MACH_O_LC_LOAD_DYLINKER:
761 case BFD_MACH_O_LC_DYLD_INFO:
762 /* Command is copied. */
763 ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command));
764 if (ocmd == NULL)
765 return FALSE;
766
767 /* Copy common fields. */
768 ocmd->type = icmd->type;
769 ocmd->type_required = icmd->type_required;
770 ocmd->offset = 0;
771 ocmd->len = icmd->len;
772 break;
773
774 default:
775 /* Command is not copied. */
776 continue;
777 break;
778 }
779
780 switch (icmd->type)
781 {
782 case BFD_MACH_O_LC_LOAD_DYLIB:
783 {
784 bfd_mach_o_dylib_command *idy = &icmd->command.dylib;
785 bfd_mach_o_dylib_command *ody = &ocmd->command.dylib;
786
787 ody->name_offset = idy->name_offset;
788 ody->timestamp = idy->timestamp;
789 ody->current_version = idy->current_version;
790 ody->compatibility_version = idy->compatibility_version;
791 ody->name_str = idy->name_str;
792 }
793 break;
794
795 case BFD_MACH_O_LC_LOAD_DYLINKER:
796 {
797 bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker;
798 bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker;
799
800 ody->name_offset = idy->name_offset;
801 ody->name_str = idy->name_str;
802 }
803 break;
804
805 case BFD_MACH_O_LC_DYLD_INFO:
806 {
807 bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info;
808 bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info;
809
810 if (bfd_mach_o_read_dyld_content (ibfd, idy))
811 {
812 ody->rebase_size = idy->rebase_size;
813 ody->rebase_content = idy->rebase_content;
814
815 ody->bind_size = idy->bind_size;
816 ody->bind_content = idy->bind_content;
817
818 ody->weak_bind_size = idy->weak_bind_size;
819 ody->weak_bind_content = idy->weak_bind_content;
820
821 ody->lazy_bind_size = idy->lazy_bind_size;
822 ody->lazy_bind_content = idy->lazy_bind_content;
823
824 ody->export_size = idy->export_size;
825 ody->export_content = idy->export_content;
826 }
86eafac0
NC		 827 /* PR 17512L: file: 730e492d. */
828 else
829 {
1b786873
L		 830 ody->rebase_size =
831 ody->bind_size =
832 ody->weak_bind_size =
833 ody->lazy_bind_size =
86eafac0 834 ody->export_size = 0;
1b786873
L		 835 ody->rebase_content =
836 ody->bind_content =
837 ody->weak_bind_content =
838 ody->lazy_bind_content =
86eafac0
NC		 839 ody->export_content = NULL;
840 }
c9ffd2ea
TG		 841 }
842 break;
843
844 default:
845 /* That command should be handled. */
846 abort ();
847 }
848
849 /* Insert command. */
850 bfd_mach_o_append_command (obfd, ocmd);
851 }
154a1ee5 852
b34976b6 853 return TRUE;
3af9a47b
NC		 854}
855
0c9ef0f0
TG		 856/* This allows us to set up to 32 bits of flags (unless we invent some
857 fiendish scheme to subdivide). For now, we'll just set the file flags
858 without error checking - just overwrite. */
68ffbac6 859
0c9ef0f0
TG		 860bfd_boolean
861bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags)
862{
863 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
864
865 if (!mdata)
866 return FALSE;
867
868 mdata->header.flags = flags;
869 return TRUE;
870}
871
046b007d 872/* Count the total number of symbols. */
154a1ee5 873
3af9a47b 874static long
116c20d2 875bfd_mach_o_count_symbols (bfd *abfd)
3af9a47b 876{
046b007d 877 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 878
046b007d
TG		 879 if (mdata->symtab == NULL)
880 return 0;
881 return mdata->symtab->nsyms;
3af9a47b
NC		 882}
883
154a1ee5 884long
116c20d2 885bfd_mach_o_get_symtab_upper_bound (bfd *abfd)
3af9a47b
NC		 886{
887 long nsyms = bfd_mach_o_count_symbols (abfd);
888
3af9a47b
NC		 889 return ((nsyms + 1) * sizeof (asymbol *));
890}
891
154a1ee5 892long
116c20d2 893bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation)
3af9a47b 894{
046b007d 895 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 896 long nsyms = bfd_mach_o_count_symbols (abfd);
046b007d
TG		 897 bfd_mach_o_symtab_command *sym = mdata->symtab;
898 unsigned long j;
3af9a47b
NC		 899
900 if (nsyms < 0)
901 return nsyms;
902
092d27ff
TG		 903 if (nsyms == 0)
904 {
905 /* Do not try to read symbols if there are none. */
906 alocation[0] = NULL;
907 return 0;
908 }
909
afbb9e17 910 if (!bfd_mach_o_read_symtab_symbols (abfd))
3af9a47b 911 {
4eca0228 912 _bfd_error_handler
07d6d2b8 913 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
046b007d
TG		 914 return 0;
915 }
3af9a47b 916
046b007d 917 BFD_ASSERT (sym->symbols != NULL);
3af9a47b 918
046b007d
TG		 919 for (j = 0; j < sym->nsyms; j++)
920 alocation[j] = &sym->symbols[j].symbol;
3af9a47b 921
046b007d 922 alocation[j] = NULL;
a95a4550 923
3af9a47b
NC		 924 return nsyms;
925}
926
aeefa1c9
TG		 927/* Create synthetic symbols for indirect symbols. */
928
b2b62060
TG		 929long
930bfd_mach_o_get_synthetic_symtab (bfd *abfd,
07d6d2b8
AM		 931 long symcount ATTRIBUTE_UNUSED,
932 asymbol **syms ATTRIBUTE_UNUSED,
933 long dynsymcount ATTRIBUTE_UNUSED,
934 asymbol **dynsyms ATTRIBUTE_UNUSED,
935 asymbol **ret)
b2b62060
TG		 936{
937 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
938 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
939 bfd_mach_o_symtab_command *symtab = mdata->symtab;
940 asymbol *s;
896ca098
NC		 941 char * s_start;
942 char * s_end;
b2b62060
TG		 943 unsigned long count, i, j, n;
944 size_t size;
945 char *names;
946 char *nul_name;
896ca098 947 const char stub [] = "$stub";
b2b62060
TG		 948
949 *ret = NULL;
950
aeefa1c9 951 /* Stop now if no symbols or no indirect symbols. */
896ca098
NC		 952 if (dysymtab == NULL || dysymtab->nindirectsyms == 0
953 || symtab == NULL || symtab->symbols == NULL)
b2b62060
TG		 954 return 0;
955
aeefa1c9
TG		 956 /* We need to allocate a bfd symbol for every indirect symbol and to
957 allocate the memory for its name. */
b2b62060
TG		 958 count = dysymtab->nindirectsyms;
959 size = count * sizeof (asymbol) + 1;
960
961 for (j = 0; j < count; j++)
962 {
896ca098 963 const char * strng;
b2b62060 964 unsigned int isym = dysymtab->indirect_syms[j];
aeefa1c9
TG		 965
966 /* Some indirect symbols are anonymous. */
896ca098
NC		 967 if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name))
968 /* PR 17512: file: f5b8eeba. */
969 size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub);
b2b62060
TG		 970 }
971
896ca098
NC		 972 s_start = bfd_malloc (size);
973 s = *ret = (asymbol *) s_start;
b2b62060
TG		 974 if (s == NULL)
975 return -1;
976 names = (char *) (s + count);
977 nul_name = names;
978 *names++ = 0;
896ca098 979 s_end = s_start + size;
68ffbac6 980
b2b62060
TG		 981 n = 0;
982 for (i = 0; i < mdata->nsects; i++)
983 {
984 bfd_mach_o_section *sec = mdata->sections[i];
91d6fa6a 985 unsigned int first, last;
b2b62060
TG		 986 bfd_vma addr;
987 bfd_vma entry_size;
68ffbac6 988
b2b62060 989 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
07d6d2b8
AM		 990 {
991 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
992 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
993 case BFD_MACH_O_S_SYMBOL_STUBS:
994 /* Only these sections have indirect symbols. */
995 first = sec->reserved1;
996 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
997 addr = sec->addr;
998 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
896ca098
NC		 999
1000 /* PR 17512: file: 08e15eec. */
1001 if (first >= count || last >= count || first > last)
1002 goto fail;
1003
07d6d2b8
AM		 1004 for (j = first; j < last; j++)
1005 {
1006 unsigned int isym = dysymtab->indirect_syms[j];
b2b62060 1007
896ca098
NC		 1008 /* PR 17512: file: 04d64d9b. */
1009 if (((char *) s) + sizeof (* s) > s_end)
1010 goto fail;
1011
07d6d2b8
AM		 1012 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
1013 s->section = sec->bfdsection;
1014 s->value = addr - sec->addr;
1015 s->udata.p = NULL;
68ffbac6 1016
07d6d2b8
AM		 1017 if (isym < symtab->nsyms
1018 && symtab->symbols[isym].symbol.name)
1019 {
1020 const char *sym = symtab->symbols[isym].symbol.name;
1021 size_t len;
b2b62060 1022
07d6d2b8
AM		 1023 s->name = names;
1024 len = strlen (sym);
896ca098
NC		 1025 /* PR 17512: file: 47dfd4d2. */
1026 if (names + len >= s_end)
1027 goto fail;
07d6d2b8
AM		 1028 memcpy (names, sym, len);
1029 names += len;
896ca098
NC		 1030 /* PR 17512: file: 18f340a4. */
1031 if (names + sizeof (stub) >= s_end)
1032 goto fail;
07d6d2b8
AM		 1033 memcpy (names, stub, sizeof (stub));
1034 names += sizeof (stub);
1035 }
1036 else
1037 s->name = nul_name;
1038
1039 addr += entry_size;
1040 s++;
1041 n++;
1042 }
1043 break;
1044 default:
1045 break;
1046 }
b2b62060
TG		 1047 }
1048
1049 return n;
896ca098
NC		 1050
1051 fail:
1052 free (s_start);
1053 * ret = NULL;
1054 return -1;
b2b62060
TG		 1055}
1056
154a1ee5 1057void
116c20d2
NC		 1058bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
1059 asymbol *symbol,
1060 symbol_info *ret)
3af9a47b
NC		 1061{
1062 bfd_symbol_info (symbol, ret);
1063}
1064
154a1ee5 1065void
116c20d2 1066bfd_mach_o_print_symbol (bfd *abfd,
91d6fa6a 1067 void * afile,
116c20d2
NC		 1068 asymbol *symbol,
1069 bfd_print_symbol_type how)
3af9a47b
NC		 1070{
1071 FILE *file = (FILE *) afile;
15e1c58a 1072 const char *name;
92bc0e80 1073 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
3af9a47b
NC		 1074
1075 switch (how)
1076 {
1077 case bfd_print_symbol_name:
1078 fprintf (file, "%s", symbol->name);
1079 break;
1080 default:
91d6fa6a 1081 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
92bc0e80
TG		 1082 if (asym->n_type & BFD_MACH_O_N_STAB)
1083 name = bfd_get_stab_name (asym->n_type);
15e1c58a 1084 else
92bc0e80 1085 switch (asym->n_type & BFD_MACH_O_N_TYPE)
15e1c58a
TG		 1086 {
1087 case BFD_MACH_O_N_UNDF:
07d6d2b8
AM		 1088 if (symbol->value == 0)
1089 name = "UND";
1090 else
1091 name = "COM";
15e1c58a
TG		 1092 break;
1093 case BFD_MACH_O_N_ABS:
1094 name = "ABS";
1095 break;
1096 case BFD_MACH_O_N_INDR:
1097 name = "INDR";
1098 break;
1099 case BFD_MACH_O_N_PBUD:
1100 name = "PBUD";
1101 break;
1102 case BFD_MACH_O_N_SECT:
1103 name = "SECT";
1104 break;
1105 default:
1106 name = "???";
1107 break;
1108 }
1109 if (name == NULL)
1110 name = "";
92bc0e80 1111 fprintf (file, " %02x %-6s %02x %04x",
07d6d2b8 1112 asym->n_type, name, asym->n_sect, asym->n_desc);
92bc0e80
TG		 1113 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
1114 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
e0ce1005 1115 fprintf (file, " [%s]", symbol->section->name);
15e1c58a 1116 fprintf (file, " %s", symbol->name);
3af9a47b
NC		 1117 }
1118}
1119
1120static void
116c20d2 1121bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
0b2de107 1122 bfd_mach_o_cpu_subtype msubtype,
116c20d2
NC		 1123 enum bfd_architecture *type,
1124 unsigned long *subtype)
3af9a47b
NC		 1125{
1126 *subtype = bfd_arch_unknown;
1127
1128 switch (mtype)
1129 {
0b2de107
TG		 1130 case BFD_MACH_O_CPU_TYPE_VAX:
1131 *type = bfd_arch_vax;
1132 break;
1133 case BFD_MACH_O_CPU_TYPE_MC680x0:
1134 *type = bfd_arch_m68k;
1135 break;
1e8a024a
TG		 1136 case BFD_MACH_O_CPU_TYPE_I386:
1137 *type = bfd_arch_i386;
1138 *subtype = bfd_mach_i386_i386;
1139 break;
1140 case BFD_MACH_O_CPU_TYPE_X86_64:
1141 *type = bfd_arch_i386;
1142 *subtype = bfd_mach_x86_64;
1143 break;
0b2de107
TG		 1144 case BFD_MACH_O_CPU_TYPE_MIPS:
1145 *type = bfd_arch_mips;
1146 break;
1147 case BFD_MACH_O_CPU_TYPE_MC98000:
1148 *type = bfd_arch_m98k;
1149 break;
1150 case BFD_MACH_O_CPU_TYPE_HPPA:
1151 *type = bfd_arch_hppa;
1152 break;
1153 case BFD_MACH_O_CPU_TYPE_ARM:
1154 *type = bfd_arch_arm;
1155 switch (msubtype)
07d6d2b8
AM		 1156 {
1157 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
1158 *subtype = bfd_mach_arm_4T;
1159 break;
1160 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
1161 *subtype = bfd_mach_arm_4T; /* Best fit ? */
1162 break;
1163 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
1164 *subtype = bfd_mach_arm_5TE;
1165 break;
1166 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
1167 *subtype = bfd_mach_arm_XScale;
1168 break;
1169 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
1170 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
1171 break;
1172 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
1173 default:
1174 break;
1175 }
0b2de107 1176 break;
1e8a024a
TG		 1177 case BFD_MACH_O_CPU_TYPE_SPARC:
1178 *type = bfd_arch_sparc;
1179 *subtype = bfd_mach_sparc;
1180 break;
0b2de107
TG		 1181 case BFD_MACH_O_CPU_TYPE_ALPHA:
1182 *type = bfd_arch_alpha;
1183 break;
1e8a024a
TG		 1184 case BFD_MACH_O_CPU_TYPE_POWERPC:
1185 *type = bfd_arch_powerpc;
c2f09c75 1186 *subtype = bfd_mach_ppc;
1e8a024a
TG		 1187 break;
1188 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1189 *type = bfd_arch_powerpc;
c2f09c75 1190 *subtype = bfd_mach_ppc64;
1e8a024a 1191 break;
d8028530
TG		 1192 case BFD_MACH_O_CPU_TYPE_ARM64:
1193 *type = bfd_arch_aarch64;
1194 *subtype = bfd_mach_aarch64;
1195 break;
3af9a47b 1196 default:
1e8a024a
TG		 1197 *type = bfd_arch_unknown;
1198 break;
3af9a47b
NC		 1199 }
1200}
a95a4550 1201
c9ffd2ea
TG		 1202/* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1203 number of bytes written or -1 in case of error. */
1204
1205static int
1206bfd_mach_o_pad4 (bfd *abfd, unsigned int len)
1207{
1208 if (len % 4 != 0)
1209 {
1210 char pad[4] = {0,0,0,0};
1211 unsigned int padlen = 4 - (len % 4);
1212
1213 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1214 return -1;
1215
1216 return padlen;
1217 }
1218 else
1219 return 0;
1220}
1221
1222/* Likewise, but for a command. */
1223
1224static int
1225bfd_mach_o_pad_command (bfd *abfd, unsigned int len)
1226{
1227 unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4;
1228
1229 if (len % align != 0)
1230 {
1231 char pad[8] = {0};
1232 unsigned int padlen = align - (len % align);
1233
1234 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1235 return -1;
1236
1237 return padlen;
1238 }
1239 else
1240 return 0;
1241}
1242
154a1ee5 1243static bfd_boolean
116c20d2
NC		 1244bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
1245{
46d1c23b 1246 struct mach_o_header_external raw;
1e8a024a
TG		 1247 unsigned int size;
1248
c2f09c75 1249 size = mach_o_wide_p (header) ?
154a1ee5 1250 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
116c20d2 1251
46d1c23b
TG		 1252 bfd_h_put_32 (abfd, header->magic, raw.magic);
1253 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
1254 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
1255 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
1256 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
1257 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
1258 bfd_h_put_32 (abfd, header->flags, raw.flags);
116c20d2 1259
c2f09c75 1260 if (mach_o_wide_p (header))
46d1c23b 1261 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1e8a024a 1262
c2f09c75 1263 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 1264 || bfd_bwrite (&raw, size, abfd) != size)
154a1ee5 1265 return FALSE;
116c20d2 1266
154a1ee5 1267 return TRUE;
116c20d2
NC		 1268}
1269
452216ab 1270static bfd_boolean
ab273af8 1271bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
116c20d2
NC		 1272{
1273 bfd_mach_o_thread_command *cmd = &command->command.thread;
1274 unsigned int i;
46d1c23b 1275 struct mach_o_thread_command_external raw;
92bc0e80 1276 unsigned int offset;
116c20d2
NC		 1277
1278 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1279 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1280
c9ffd2ea 1281 offset = BFD_MACH_O_LC_SIZE;
116c20d2
NC		 1282 for (i = 0; i < cmd->nflavours; i++)
1283 {
1284 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
46d1c23b 1285 BFD_ASSERT (cmd->flavours[i].offset ==
07d6d2b8 1286 (command->offset + offset + BFD_MACH_O_LC_SIZE));
116c20d2 1287
46d1c23b
TG		 1288 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
1289 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
116c20d2 1290
c2f09c75 1291 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
07d6d2b8 1292 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1293 return FALSE;
116c20d2 1294
46d1c23b 1295 offset += cmd->flavours[i].size + sizeof (raw);
116c20d2
NC		 1296 }
1297
452216ab 1298 return TRUE;
116c20d2
NC		 1299}
1300
c9ffd2ea
TG		 1301static bfd_boolean
1302bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
1303{
1304 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1305 struct mach_o_str_command_external raw;
1306 unsigned int namelen;
1307
1308 bfd_h_put_32 (abfd, cmd->name_offset, raw.str);
1309
1310 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1311 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1312 return FALSE;
1313
1314 namelen = strlen (cmd->name_str) + 1;
1315 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1316 return FALSE;
1317
1318 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1319 return FALSE;
1320
1321 return TRUE;
1322}
1323
1324static bfd_boolean
1325bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1326{
1327 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1328 struct mach_o_dylib_command_external raw;
1329 unsigned int namelen;
1330
1331 bfd_h_put_32 (abfd, cmd->name_offset, raw.name);
1332 bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp);
1333 bfd_h_put_32 (abfd, cmd->current_version, raw.current_version);
1334 bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version);
1335
1336 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1337 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1338 return FALSE;
1339
1340 namelen = strlen (cmd->name_str) + 1;
1341 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1342 return FALSE;
1343
1344 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1345 return FALSE;
1346
1347 return TRUE;
1348}
1349
1350static bfd_boolean
1351bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
1352{
1353 bfd_mach_o_main_command *cmd = &command->command.main;
1354 struct mach_o_entry_point_command_external raw;
1355
1356 bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff);
1357 bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize);
1358
1359 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1360 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1361 return FALSE;
1362
1363 return TRUE;
1364}
1365
1366static bfd_boolean
1367bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
1368{
1369 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
1370 struct mach_o_dyld_info_command_external raw;
1371
1372 bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off);
1373 bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size);
1374 bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off);
1375 bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size);
1376 bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off);
1377 bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size);
1378 bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off);
1379 bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size);
1380 bfd_h_put_32 (abfd, cmd->export_off, raw.export_off);
1381 bfd_h_put_32 (abfd, cmd->export_size, raw.export_size);
1382
1383 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1384 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1385 return FALSE;
1386
1387 if (cmd->rebase_size != 0)
1388 if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
1389 || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
1390 cmd->rebase_size))
1391 return FALSE;
1392
1393 if (cmd->bind_size != 0)
1394 if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
1395 || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
1396 cmd->bind_size))
1397 return FALSE;
1398
1399 if (cmd->weak_bind_size != 0)
1400 if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
1401 || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
1402 cmd->weak_bind_size))
1403 return FALSE;
1404
1405 if (cmd->lazy_bind_size != 0)
1406 if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
1407 || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
1408 cmd->lazy_bind_size))
1409 return FALSE;
1410
1411 if (cmd->export_size != 0)
1412 if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
1413 || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
1414 cmd->export_size))
1415 return FALSE;
1416
1417 return TRUE;
1418}
1419
92bc0e80
TG		 1420long
1421bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
07d6d2b8 1422 asection *asect)
92bc0e80 1423{
242a1159 1424#if SIZEOF_LONG == SIZEOF_INT
7a6e0d89
AM		 1425 if (asect->reloc_count >= LONG_MAX / sizeof (arelent *))
1426 {
1427 bfd_set_error (bfd_error_file_too_big);
1428 return -1;
1429 }
242a1159 1430#endif
7a6e0d89 1431 return (asect->reloc_count + 1) * sizeof (arelent *);
92bc0e80
TG		 1432}
1433
19765f52
IS		 1434/* In addition to the need to byte-swap the symbol number, the bit positions
1435 of the fields in the relocation information vary per target endian-ness. */
1436
bcb51645 1437void
19765f52 1438bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel,
c6643fcc 1439 unsigned char *fields)
19765f52
IS		 1440{
1441 unsigned char info = fields[3];
1442
1443 if (bfd_big_endian (abfd))
1444 {
1445 rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2];
1446 rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1447 rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0;
68ffbac6 1448 rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT)
19765f52
IS		 1449 & BFD_MACH_O_LENGTH_MASK;
1450 rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0;
1451 }
1452 else
1453 {
1454 rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0];
1455 rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1456 rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0;
68ffbac6 1457 rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT)
19765f52
IS		 1458 & BFD_MACH_O_LENGTH_MASK;
1459 rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0;
1460 }
1461}
1462
bcb51645
TG		 1463/* Set syms_ptr_ptr and addend of RES. */
1464
1465bfd_boolean
1466bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd,
1467 bfd_mach_o_reloc_info *reloc,
1468 arelent *res, asymbol **syms)
92bc0e80 1469{
046b007d 1470 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bcb51645 1471 unsigned int num;
b32e07d7
TG		 1472 asymbol **sym;
1473
bcb51645
TG		 1474 /* Non-scattered relocation. */
1475 reloc->r_scattered = 0;
1476 res->addend = 0;
1477
1478 num = reloc->r_value;
1479
1480 if (reloc->r_extern)
1481 {
1482 /* PR 17512: file: 8396-1185-0.004. */
1483 if (num >= (unsigned) bfd_mach_o_count_symbols (abfd))
1484 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1485 else if (syms == NULL)
1486 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1487 else
1488 /* An external symbol number. */
1489 sym = syms + num;
1490 }
1491 else if (num == 0x00ffffff || num == 0)
1492 {
1493 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1494 is generic code, we don't know wether this is really a PAIR.
1495 This value is almost certainly not a valid section number, hence
1496 this specific case to avoid an assertion failure.
1497 Target specific swap_reloc_in routine should adjust that. */
1498 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1499 }
1500 else
1501 {
1502 /* PR 17512: file: 006-2964-0.004. */
1503 if (num > mdata->nsects)
a68aa5d3
NC		 1504 {
1505 _bfd_error_handler (_("\
1506malformed mach-o reloc: section index is greater than the number of sections"));
1507 return FALSE;
1508 }
bcb51645
TG		 1509
1510 /* A section number. */
1511 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1512 /* For a symbol defined in section S, the addend (stored in the
1513 binary) contains the address of the section. To comply with
1514 bfd convention, subtract the section address.
1515 Use the address from the header, so that the user can modify
07d6d2b8 1516 the vma of the section. */
bcb51645
TG		 1517 res->addend = -mdata->sections[num - 1]->addr;
1518 }
1519
1520 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1521 in the lower 16bits of the address value. So we have to find the
1522 'symbol' from the preceding reloc. We do this even though the
1523 section symbol is probably not needed here, because NULL symbol
1524 values cause an assert in generic BFD code. This must be done in
1525 the PPC swap_reloc_in routine. */
1526 res->sym_ptr_ptr = sym;
1527
1528 return TRUE;
1529}
1530
1531/* Do most of the work for canonicalize_relocs on RAW: create internal
1532 representation RELOC and set most fields of RES using symbol table SYMS.
1533 Each target still has to set the howto of RES and possibly adjust other
1534 fields.
1535 Previously the Mach-O hook point was simply swap_in, but some targets
1536 (like arm64) don't follow the generic rules (symnum is a value for the
1537 non-scattered relocation ADDEND). */
1538
1539bfd_boolean
1540bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd,
1541 struct mach_o_reloc_info_external *raw,
1542 bfd_mach_o_reloc_info *reloc,
1543 arelent *res, asymbol **syms)
1544{
1545 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1546 bfd_vma addr;
1547
46d1c23b 1548 addr = bfd_get_32 (abfd, raw->r_address);
19765f52
IS		 1549 res->sym_ptr_ptr = NULL;
1550 res->addend = 0;
f4716ee2 1551
b32e07d7
TG		 1552 if (addr & BFD_MACH_O_SR_SCATTERED)
1553 {
1554 unsigned int j;
19765f52 1555 bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum);
b32e07d7 1556
19765f52 1557 /* Scattered relocation, can't be extern. */
bcb51645
TG		 1558 reloc->r_scattered = 1;
1559 reloc->r_extern = 0;
19765f52
IS		 1560
1561 /* Extract section and offset from r_value (symnum). */
bcb51645 1562 reloc->r_value = symnum;
19765f52
IS		 1563 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1564 end of the data for the section (e.g. in a calculation of section
1565 data length). At present, the symbol will end up associated with
1566 the following section or, if it falls within alignment padding, as
1567 null - which will assert later. */
b32e07d7 1568 for (j = 0; j < mdata->nsects; j++)
07d6d2b8
AM		 1569 {
1570 bfd_mach_o_section *sect = mdata->sections[j];
1571 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1572 {
1573 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1574 res->addend = symnum - sect->addr;
1575 break;
1576 }
1577 }
19765f52
IS		 1578
1579 /* Extract the info and address fields from r_address. */
bcb51645
TG		 1580 reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1581 reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1582 reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL;
1583 reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr);
19765f52 1584 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
b32e07d7
TG		 1585 }
1586 else
1587 {
19765f52 1588 /* Non-scattered relocation. */
bcb51645
TG		 1589 reloc->r_scattered = 0;
1590 reloc->r_address = addr;
1591 res->address = addr;
f4716ee2 1592
19765f52 1593 /* The value and info fields have to be extracted dependent on target
07d6d2b8 1594 endian-ness. */
bcb51645 1595 bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum);
19765f52 1596
bcb51645
TG		 1597 if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc,
1598 res, syms))
1599 return FALSE;
b32e07d7 1600 }
f4716ee2
TG		 1601
1602 /* We have set up a reloc with all the information present, so the swapper
1603 can modify address, value and addend fields, if necessary, to convey
1604 information in the generic BFD reloc that is mach-o specific. */
19765f52 1605
bcb51645 1606 return TRUE;
b32e07d7
TG		 1607}
1608
1609static int
1610bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
07d6d2b8
AM		 1611 unsigned long count,
1612 arelent *res, asymbol **syms)
b32e07d7 1613{
bcb51645 1614 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
92bc0e80 1615 unsigned long i;
a68aa5d3 1616 struct mach_o_reloc_info_external *native_relocs = NULL;
92bc0e80
TG		 1617 bfd_size_type native_size;
1618
92bc0e80 1619 /* Allocate and read relocs. */
b32e07d7 1620 native_size = count * BFD_MACH_O_RELENT_SIZE;
033539e2 1621
64d29018
NC		 1622 /* PR 17512: file: 09477b57. */
1623 if (native_size < count)
a68aa5d3 1624 goto err;
64d29018 1625
46d1c23b
TG		 1626 native_relocs =
1627 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
92bc0e80
TG		 1628 if (native_relocs == NULL)
1629 return -1;
1630
b32e07d7 1631 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
92bc0e80 1632 || bfd_bread (native_relocs, native_size, abfd) != native_size)
b32e07d7
TG		 1633 goto err;
1634
1635 for (i = 0; i < count; i++)
92bc0e80 1636 {
bcb51645 1637 if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i],
ca4cf9b9 1638 &res[i], syms, res))
07d6d2b8 1639 goto err;
92bc0e80 1640 }
b32e07d7
TG		 1641 free (native_relocs);
1642 return i;
a68aa5d3 1643
b32e07d7
TG		 1644 err:
1645 free (native_relocs);
a68aa5d3
NC		 1646 if (bfd_get_error () == bfd_error_no_error)
1647 bfd_set_error (bfd_error_invalid_operation);
b32e07d7
TG		 1648 return -1;
1649}
1650
1651long
1652bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
07d6d2b8 1653 arelent **rels, asymbol **syms)
b32e07d7
TG		 1654{
1655 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1656 unsigned long i;
1657 arelent *res;
1658
1659 if (asect->reloc_count == 0)
1660 return 0;
1661
1662 /* No need to go further if we don't know how to read relocs. */
bcb51645 1663 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
b32e07d7 1664 return 0;
92bc0e80 1665
dff55db0 1666 if (asect->relocation == NULL)
92bc0e80 1667 {
64d29018
NC		 1668 if (asect->reloc_count * sizeof (arelent) < asect->reloc_count)
1669 return -1;
dff55db0
TG		 1670 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1671 if (res == NULL)
07d6d2b8 1672 return -1;
dff55db0
TG		 1673
1674 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
07d6d2b8
AM		 1675 asect->reloc_count, res, syms) < 0)
1676 {
1677 free (res);
1678 return -1;
1679 }
dff55db0 1680 asect->relocation = res;
92bc0e80
TG		 1681 }
1682
dff55db0 1683 res = asect->relocation;
92bc0e80 1684 for (i = 0; i < asect->reloc_count; i++)
b32e07d7
TG		 1685 rels[i] = &res[i];
1686 rels[i] = NULL;
92bc0e80 1687
b32e07d7
TG		 1688 return i;
1689}
92bc0e80 1690
b32e07d7
TG		 1691long
1692bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1693{
1694 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
92bc0e80 1695
b32e07d7
TG		 1696 if (mdata->dysymtab == NULL)
1697 return 1;
dff55db0 1698 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
b32e07d7
TG		 1699 * sizeof (arelent *);
1700}
92bc0e80 1701
b32e07d7
TG		 1702long
1703bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
07d6d2b8 1704 struct bfd_symbol **syms)
b32e07d7
TG		 1705{
1706 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1707 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1708 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1709 unsigned long i;
1710 arelent *res;
1711
1712 if (dysymtab == NULL)
1713 return 0;
1714 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1715 return 0;
1716
1717 /* No need to go further if we don't know how to read relocs. */
bcb51645 1718 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
b32e07d7
TG		 1719 return 0;
1720
dff55db0 1721 if (mdata->dyn_reloc_cache == NULL)
b32e07d7 1722 {
64d29018
NC		 1723 if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent)
1724 < (dysymtab->nextrel + dysymtab->nlocrel))
1725 return -1;
1726
dff55db0 1727 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
07d6d2b8 1728 * sizeof (arelent));
dff55db0 1729 if (res == NULL)
07d6d2b8 1730 return -1;
b32e07d7 1731
dff55db0 1732 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
07d6d2b8
AM		 1733 dysymtab->nextrel, res, syms) < 0)
1734 {
1735 free (res);
1736 return -1;
1737 }
dff55db0
TG		 1738
1739 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
07d6d2b8
AM		 1740 dysymtab->nlocrel,
1741 res + dysymtab->nextrel, syms) < 0)
1742 {
1743 free (res);
1744 return -1;
1745 }
dff55db0
TG		 1746
1747 mdata->dyn_reloc_cache = res;
b32e07d7
TG		 1748 }
1749
dff55db0 1750 res = mdata->dyn_reloc_cache;
b32e07d7
TG		 1751 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1752 rels[i] = &res[i];
1753 rels[i] = NULL;
92bc0e80
TG		 1754 return i;
1755}
1756
19765f52
IS		 1757/* In addition to the need to byte-swap the symbol number, the bit positions
1758 of the fields in the relocation information vary per target endian-ness. */
1759
1760static void
1761bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
c6643fcc 1762 bfd_mach_o_reloc_info *rel)
19765f52
IS		 1763{
1764 unsigned char info = 0;
1765
1766 BFD_ASSERT (rel->r_type <= 15);
1767 BFD_ASSERT (rel->r_length <= 3);
1768
1769 if (bfd_big_endian (abfd))
1770 {
1771 fields[0] = (rel->r_value >> 16) & 0xff;
1772 fields[1] = (rel->r_value >> 8) & 0xff;
1773 fields[2] = rel->r_value & 0xff;
1774 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1775 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1776 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1777 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1778 }
1779 else
1780 {
1781 fields[2] = (rel->r_value >> 16) & 0xff;
1782 fields[1] = (rel->r_value >> 8) & 0xff;
1783 fields[0] = rel->r_value & 0xff;
1784 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1785 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1786 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1787 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1788 }
1789 fields[3] = info;
1790}
1791
92bc0e80 1792static bfd_boolean
ab273af8 1793bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
92bc0e80 1794{
92bc0e80
TG		 1795 unsigned int i;
1796 arelent **entries;
1797 asection *sec;
1798 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1799
1800 sec = section->bfdsection;
1801 if (sec->reloc_count == 0)
1802 return TRUE;
1803
1804 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1805 return TRUE;
1806
92bc0e80
TG		 1807 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1808 return FALSE;
1809
1810 /* Convert and write. */
1811 entries = section->bfdsection->orelocation;
1812 for (i = 0; i < section->nreloc; i++)
1813 {
1814 arelent *rel = entries[i];
46d1c23b 1815 struct mach_o_reloc_info_external raw;
92bc0e80
TG		 1816 bfd_mach_o_reloc_info info, *pinfo = &info;
1817
1818 /* Convert relocation to an intermediate representation. */
1819 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
07d6d2b8 1820 return FALSE;
92bc0e80
TG		 1821
1822 /* Lower the relocation info. */
1823 if (pinfo->r_scattered)
07d6d2b8
AM		 1824 {
1825 unsigned long v;
1826
1827 v = BFD_MACH_O_SR_SCATTERED
1828 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1829 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1830 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1831 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
1832 /* Note: scattered relocs have field in reverse order... */
1833 bfd_put_32 (abfd, v, raw.r_address);
1834 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1835 }
92bc0e80 1836 else
07d6d2b8
AM		 1837 {
1838 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1839 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
19765f52 1840 pinfo);
07d6d2b8 1841 }
92bc0e80 1842
46d1c23b 1843 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
07d6d2b8
AM		 1844 != BFD_MACH_O_RELENT_SIZE)
1845 return FALSE;
92bc0e80
TG		 1846 }
1847 return TRUE;
1848}
1849
452216ab 1850static bfd_boolean
ab273af8 1851bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1852{
46d1c23b
TG		 1853 struct mach_o_section_32_external raw;
1854
1855 memcpy (raw.sectname, section->sectname, 16);
72b5104c 1856 memcpy (raw.segname, section->segname, 16);
46d1c23b
TG		 1857 bfd_h_put_32 (abfd, section->addr, raw.addr);
1858 bfd_h_put_32 (abfd, section->size, raw.size);
1859 bfd_h_put_32 (abfd, section->offset, raw.offset);
1860 bfd_h_put_32 (abfd, section->align, raw.align);
1861 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1862 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1863 bfd_h_put_32 (abfd, section->flags, raw.flags);
1864 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1865 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1866
1867 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
92bc0e80 1868 != BFD_MACH_O_SECTION_SIZE)
452216ab 1869 return FALSE;
116c20d2 1870
452216ab 1871 return TRUE;
116c20d2
NC		 1872}
1873
452216ab 1874static bfd_boolean
ab273af8 1875bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1876{
46d1c23b
TG		 1877 struct mach_o_section_64_external raw;
1878
1879 memcpy (raw.sectname, section->sectname, 16);
1880 memcpy (raw.segname, section->segname, 16);
1881 bfd_h_put_64 (abfd, section->addr, raw.addr);
1882 bfd_h_put_64 (abfd, section->size, raw.size);
1883 bfd_h_put_32 (abfd, section->offset, raw.offset);
1884 bfd_h_put_32 (abfd, section->align, raw.align);
1885 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1886 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1887 bfd_h_put_32 (abfd, section->flags, raw.flags);
1888 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1889 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1890 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1891
1892 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
92bc0e80 1893 != BFD_MACH_O_SECTION_64_SIZE)
452216ab 1894 return FALSE;
116c20d2 1895
452216ab 1896 return TRUE;
1e8a024a
TG		 1897}
1898
452216ab 1899static bfd_boolean
ab273af8 1900bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1901{
46d1c23b 1902 struct mach_o_segment_command_32_external raw;
1e8a024a 1903 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1904 bfd_mach_o_section *sec;
1e8a024a 1905
c2f09c75
TG		 1906 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1907
f1bde64c
TG		 1908 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1909 if (!bfd_mach_o_write_relocs (abfd, sec))
452216ab 1910 return FALSE;
c2f09c75 1911
46d1c23b
TG		 1912 memcpy (raw.segname, seg->segname, 16);
1913 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1914 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1915 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1916 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1917 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1918 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1919 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1920 bfd_h_put_32 (abfd, seg->flags, raw.flags);
68ffbac6 1921
46d1c23b
TG		 1922 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1923 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1924 return FALSE;
1e8a024a 1925
f1bde64c 1926 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
452216ab
TG		 1927 if (!bfd_mach_o_write_section_32 (abfd, sec))
1928 return FALSE;
1e8a024a 1929
452216ab 1930 return TRUE;
116c20d2
NC		 1931}
1932
452216ab 1933static bfd_boolean
ab273af8 1934bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1935{
46d1c23b 1936 struct mach_o_segment_command_64_external raw;
c2f09c75 1937 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1938 bfd_mach_o_section *sec;
c2f09c75
TG		 1939
1940 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1941
f1bde64c
TG		 1942 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1943 if (!bfd_mach_o_write_relocs (abfd, sec))
452216ab 1944 return FALSE;
c2f09c75 1945
46d1c23b
TG		 1946 memcpy (raw.segname, seg->segname, 16);
1947 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1948 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1949 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1950 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1951 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1952 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1953 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1954 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1955
1956 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1957 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1958 return FALSE;
c2f09c75 1959
f1bde64c 1960 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
452216ab
TG		 1961 if (!bfd_mach_o_write_section_64 (abfd, sec))
1962 return FALSE;
c2f09c75 1963
452216ab 1964 return TRUE;
1e8a024a
TG		 1965}
1966
c2f09c75 1967static bfd_boolean
c9ffd2ea 1968bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
116c20d2 1969{
046b007d 1970 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
116c20d2 1971 unsigned long i;
c2f09c75 1972 unsigned int wide = bfd_mach_o_wide_p (abfd);
c2f09c75
TG		 1973 struct bfd_strtab_hash *strtab;
1974 asymbol **symbols = bfd_get_outsymbols (abfd);
c9ffd2ea 1975 int padlen;
c2f09c75
TG		 1976
1977 /* Write the symbols first. */
1978 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1979 return FALSE;
1980
c2f09c75
TG		 1981 strtab = _bfd_stringtab_init ();
1982 if (strtab == NULL)
1983 return FALSE;
116c20d2 1984
a4551119
TG		 1985 if (sym->nsyms > 0)
1986 /* Although we don't strictly need to do this, for compatibility with
1987 Darwin system tools, actually output an empty string for the index
1988 0 entry. */
1989 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1990
116c20d2
NC		 1991 for (i = 0; i < sym->nsyms; i++)
1992 {
91d6fa6a 1993 bfd_size_type str_index;
92bc0e80 1994 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
68ffbac6 1995
92bc0e80 1996 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
7f307238 1997 /* An index of 0 always means the empty string. */
07d6d2b8 1998 str_index = 0;
c2f09c75 1999 else
07d6d2b8
AM		 2000 {
2001 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
7f307238 2002
07d6d2b8
AM		 2003 if (str_index == (bfd_size_type) -1)
2004 goto err;
2005 }
46d1c23b 2006
c2f09c75 2007 if (wide)
07d6d2b8
AM		 2008 {
2009 struct mach_o_nlist_64_external raw;
2010
2011 bfd_h_put_32 (abfd, str_index, raw.n_strx);
2012 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
2013 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
2014 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
2015 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
2016 raw.n_value);
2017
2018 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2019 goto err;
2020 }
c2f09c75 2021 else
07d6d2b8
AM		 2022 {
2023 struct mach_o_nlist_external raw;
116c20d2 2024
07d6d2b8
AM		 2025 bfd_h_put_32 (abfd, str_index, raw.n_strx);
2026 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
2027 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
2028 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
2029 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
2030 raw.n_value);
46d1c23b 2031
07d6d2b8
AM		 2032 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2033 goto err;
2034 }
116c20d2 2035 }
c2f09c75 2036 sym->strsize = _bfd_stringtab_size (strtab);
92bc0e80
TG		 2037 sym->stroff = mdata->filelen;
2038 mdata->filelen += sym->strsize;
116c20d2 2039
c9ffd2ea 2040 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
64d29018 2041 goto err;
c9ffd2ea 2042
535b785f 2043 if (!_bfd_stringtab_emit (abfd, strtab))
c2f09c75 2044 goto err;
116c20d2 2045
c9ffd2ea
TG		 2046 /* Pad string table. */
2047 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
2048 if (padlen < 0)
2049 return FALSE;
2050 mdata->filelen += padlen;
2051 sym->strsize += padlen;
116c20d2 2052
c2f09c75 2053 return TRUE;
116c20d2 2054
c2f09c75
TG		 2055 err:
2056 _bfd_stringtab_free (strtab);
64d29018 2057 sym->strsize = 0;
c2f09c75 2058 return FALSE;
116c20d2
NC		 2059}
2060
c9ffd2ea
TG		 2061static bfd_boolean
2062bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
2063{
2064 bfd_mach_o_symtab_command *sym = &command->command.symtab;
2065 struct mach_o_symtab_command_external raw;
2066
2067 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
2068
2069 /* The command. */
2070 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
2071 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
2072 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
2073 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
2074
2075 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
2076 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2077 return FALSE;
2078
2079 return TRUE;
2080}
2081
2082/* Count the number of indirect symbols in the image.
2083 Requires that the sections are in their final order. */
2084
2085static unsigned int
2086bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
2087{
2088 unsigned int i;
2089 unsigned int nisyms = 0;
2090
2091 for (i = 0; i < mdata->nsects; ++i)
2092 {
2093 bfd_mach_o_section *sec = mdata->sections[i];
2094
2095 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2096 {
2097 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2098 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2099 case BFD_MACH_O_S_SYMBOL_STUBS:
2100 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2101 break;
2102 default:
2103 break;
2104 }
2105 }
2106 return nisyms;
2107}
2108
2109/* Create the dysymtab. */
2110
2111static bfd_boolean
2112bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
2113{
2114 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2115
2116 /* TODO:
2117 We are not going to try and fill these in yet and, moreover, we are
2118 going to bail if they are already set. */
2119 if (cmd->nmodtab != 0
2120 || cmd->ntoc != 0
2121 || cmd->nextrefsyms != 0)
2122 {
4eca0228
AM		 2123 _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet"
2124 " implemented for dysymtab commands."));
c9ffd2ea
TG		 2125 return FALSE;
2126 }
2127
2128 cmd->ilocalsym = 0;
2129
2130 if (bfd_get_symcount (abfd) > 0)
2131 {
2132 asymbol **symbols = bfd_get_outsymbols (abfd);
2133 unsigned long i;
2134
2135 /* Count the number of each kind of symbol. */
2136 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2137 {
2138 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2139 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
2140 break;
2141 }
2142 cmd->nlocalsym = i;
2143 cmd->iextdefsym = i;
2144 for (; i < bfd_get_symcount (abfd); ++i)
2145 {
2146 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2147 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
2148 break;
2149 }
2150 cmd->nextdefsym = i - cmd->nlocalsym;
2151 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
2152 cmd->nundefsym = bfd_get_symcount (abfd)
2153 - cmd->nlocalsym
2154 - cmd->nextdefsym;
2155 }
2156 else
2157 {
2158 cmd->nlocalsym = 0;
2159 cmd->iextdefsym = 0;
2160 cmd->nextdefsym = 0;
2161 cmd->iundefsym = 0;
2162 cmd->nundefsym = 0;
2163 }
2164
2165 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
2166 if (cmd->nindirectsyms > 0)
2167 {
2168 unsigned i;
2169 unsigned n;
2170
2171 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2172 cmd->indirectsymoff = mdata->filelen;
2173 mdata->filelen += cmd->nindirectsyms * 4;
2174
64d29018
NC		 2175 if (cmd->nindirectsyms * 4 < cmd->nindirectsyms)
2176 return FALSE;
c9ffd2ea
TG		 2177 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
2178 if (cmd->indirect_syms == NULL)
07d6d2b8 2179 return FALSE;
c9ffd2ea
TG		 2180
2181 n = 0;
2182 for (i = 0; i < mdata->nsects; ++i)
2183 {
2184 bfd_mach_o_section *sec = mdata->sections[i];
2185
2186 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2187 {
2188 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2189 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2190 case BFD_MACH_O_S_SYMBOL_STUBS:
2191 {
2192 unsigned j, num;
2193 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
2194
2195 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2196 if (isyms == NULL || num == 0)
2197 break;
2198 /* Record the starting index in the reserved1 field. */
2199 sec->reserved1 = n;
2200 for (j = 0; j < num; j++, n++)
2201 {
2202 if (isyms[j] == NULL)
07d6d2b8 2203 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
c9ffd2ea
TG		 2204 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
2205 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
07d6d2b8 2206 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
c9ffd2ea
TG		 2207 | BFD_MACH_O_INDIRECT_SYM_ABS;
2208 else
07d6d2b8 2209 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
c9ffd2ea
TG		 2210 }
2211 }
2212 break;
2213 default:
2214 break;
2215 }
2216 }
2217 }
2218
2219 return TRUE;
2220}
2221
7f307238
IS		 2222/* Write a dysymtab command.
2223 TODO: Possibly coalesce writes of smaller objects. */
2224
2225static bfd_boolean
2226bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2227{
2228 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2229
2230 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2231
2232 if (cmd->nmodtab != 0)
2233 {
2234 unsigned int i;
2235
2236 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2237 return FALSE;
2238
2239 for (i = 0; i < cmd->nmodtab; i++)
2240 {
2241 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2242 unsigned int iinit;
2243 unsigned int ninit;
2244
2245 iinit = module->iinit & 0xffff;
2246 iinit |= ((module->iterm & 0xffff) << 16);
2247
2248 ninit = module->ninit & 0xffff;
2249 ninit |= ((module->nterm & 0xffff) << 16);
2250
2251 if (bfd_mach_o_wide_p (abfd))
2252 {
2253 struct mach_o_dylib_module_64_external w;
2254
2255 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2256 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2257 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2258 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2259 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2260 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2261 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2262 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2263 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2264 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2265 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2266 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2267 &w.objc_module_info_addr);
2268 bfd_h_put_32 (abfd, module->objc_module_info_size,
2269 &w.objc_module_info_size);
2270
2271 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2272 return FALSE;
2273 }
2274 else
2275 {
2276 struct mach_o_dylib_module_external n;
2277
2278 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2279 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2280 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2281 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2282 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2283 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2284 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2285 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2286 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2287 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2288 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2289 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2290 &n.objc_module_info_addr);
2291 bfd_h_put_32 (abfd, module->objc_module_info_size,
2292 &n.objc_module_info_size);
2293
2294 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2295 return FALSE;
2296 }
2297 }
2298 }
2299
2300 if (cmd->ntoc != 0)
2301 {
2302 unsigned int i;
2303
2304 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2305 return FALSE;
2306
2307 for (i = 0; i < cmd->ntoc; i++)
2308 {
2309 struct mach_o_dylib_table_of_contents_external raw;
2310 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2311
2312 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2313 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2314
2315 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2316 return FALSE;
2317 }
2318 }
68ffbac6 2319
7f307238
IS		 2320 if (cmd->nindirectsyms > 0)
2321 {
2322 unsigned int i;
2323
2324 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2325 return FALSE;
2326
2327 for (i = 0; i < cmd->nindirectsyms; ++i)
2328 {
2329 unsigned char raw[4];
2330
2331 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2332 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2333 return FALSE;
68ffbac6 2334 }
7f307238
IS		 2335 }
2336
2337 if (cmd->nextrefsyms != 0)
2338 {
2339 unsigned int i;
2340
2341 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2342 return FALSE;
2343
2344 for (i = 0; i < cmd->nextrefsyms; i++)
2345 {
2346 unsigned long v;
2347 unsigned char raw[4];
2348 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2349
2350 /* Fields isym and flags are written as bit-fields, thus we need
2351 a specific processing for endianness. */
2352
2353 if (bfd_big_endian (abfd))
2354 {
2355 v = ((ref->isym & 0xffffff) << 8);
2356 v |= ref->flags & 0xff;
2357 }
2358 else
2359 {
2360 v = ref->isym & 0xffffff;
2361 v |= ((ref->flags & 0xff) << 24);
2362 }
2363
2364 bfd_h_put_32 (abfd, v, raw);
2365 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2366 return FALSE;
2367 }
2368 }
2369
2370 /* The command. */
2371 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2372 return FALSE;
2373 else
2374 {
2375 struct mach_o_dysymtab_command_external raw;
2376
2377 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2378 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2379 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2380 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2381 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2382 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2383 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2384 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2385 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2386 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2387 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2388 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2389 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2390 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2391 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2392 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2393 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2394 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2395
2396 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2397 return FALSE;
2398 }
2399
2400 return TRUE;
2401}
2402
2403static unsigned
b22161d6 2404bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
7f307238 2405{
b22161d6 2406 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
68588f95
IS		 2407
2408 /* Just leave debug symbols where they are (pretend they are local, and
2409 then they will just be sorted on position). */
b22161d6 2410 if (s->n_type & BFD_MACH_O_N_STAB)
68588f95
IS		 2411 return 0;
2412
7f307238 2413 /* Local (we should never see an undefined local AFAICT). */
b22161d6 2414 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
7f307238
IS		 2415 return 0;
2416
2417 /* Common symbols look like undefined externs. */
68588f95 2418 if (mtyp == BFD_MACH_O_N_UNDF)
7f307238
IS		 2419 return 2;
2420
b22161d6 2421 /* A defined non-local, non-debug symbol. */
7f307238
IS		 2422 return 1;
2423}
2424
2425static int
2426bfd_mach_o_cf_symbols (const void *a, const void *b)
2427{
2428 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2429 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2430 unsigned int soa, sob;
2431
b22161d6
IS		 2432 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2433 sob = bfd_mach_o_primary_symbol_sort_key (sb);
7f307238
IS		 2434 if (soa < sob)
2435 return -1;
2436
2437 if (soa > sob)
2438 return 1;
2439
68588f95 2440 /* If it's local or stab, just preserve the input order. */
7f307238
IS		 2441 if (soa == 0)
2442 {
2443 if (sa->symbol.udata.i < sb->symbol.udata.i)
07d6d2b8 2444 return -1;
7f307238 2445 if (sa->symbol.udata.i > sb->symbol.udata.i)
07d6d2b8 2446 return 1;
b22161d6
IS		 2447
2448 /* This is probably an error. */
7f307238
IS		 2449 return 0;
2450 }
2451
b22161d6
IS		 2452 /* The second sort key is name. */
2453 return strcmp (sa->symbol.name, sb->symbol.name);
7f307238
IS		 2454}
2455
2456/* Process the symbols.
2457
2458 This should be OK for single-module files - but it is not likely to work
2459 for multi-module shared libraries.
2460
2461 (a) If the application has not filled in the relevant mach-o fields, make
2462 an estimate.
2463
2464 (b) Order them, like this:
2465 ( i) local.
2466 (unsorted)
2467 ( ii) external defined
2468 (by name)
b22161d6 2469 (iii) external undefined/common
7f307238
IS		 2470 (by name)
2471 ( iv) common
2472 (by name)
b22161d6 2473*/
92bc0e80
TG		 2474
2475static bfd_boolean
b22161d6 2476bfd_mach_o_mangle_symbols (bfd *abfd)
92bc0e80
TG		 2477{
2478 unsigned long i;
2479 asymbol **symbols = bfd_get_outsymbols (abfd);
2480
7f307238
IS		 2481 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2482 return TRUE;
2483
92bc0e80
TG		 2484 for (i = 0; i < bfd_get_symcount (abfd); i++)
2485 {
2486 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2487
b22161d6
IS		 2488 /* We use this value, which is out-of-range as a symbol index, to signal
2489 that the mach-o-specific data are not filled in and need to be created
2490 from the bfd values. It is much preferable for the application to do
2491 this, since more meaningful diagnostics can be made that way. */
2492
2493 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
07d6d2b8
AM		 2494 {
2495 /* No symbol information has been set - therefore determine
2496 it from the bfd symbol flags/info. */
2497 if (s->symbol.section == bfd_abs_section_ptr)
2498 s->n_type = BFD_MACH_O_N_ABS;
2499 else if (s->symbol.section == bfd_und_section_ptr)
2500 {
2501 s->n_type = BFD_MACH_O_N_UNDF;
2502 if (s->symbol.flags & BSF_WEAK)
2503 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
2504 /* mach-o automatically makes undefined symbols extern. */
7f307238 2505 s->n_type |= BFD_MACH_O_N_EXT;
b22161d6 2506 s->symbol.flags |= BSF_GLOBAL;
07d6d2b8
AM		 2507 }
2508 else if (s->symbol.section == bfd_com_section_ptr)
b22161d6 2509 {
07d6d2b8
AM		 2510 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2511 s->symbol.flags |= BSF_GLOBAL;
2512 }
2513 else
2514 s->n_type = BFD_MACH_O_N_SECT;
07d6d2b8 2515 }
92bc0e80 2516
ae19acf3 2517 /* Update external symbol bit in case objcopy changed it. */
2518 if (s->symbol.flags & BSF_GLOBAL)
2519 s->n_type |= BFD_MACH_O_N_EXT;
2520 else
2521 s->n_type &= ~BFD_MACH_O_N_EXT;
2522
7f307238 2523 /* Put the section index in, where required. */
68588f95 2524 if ((s->symbol.section != bfd_abs_section_ptr
07d6d2b8
AM		 2525 && s->symbol.section != bfd_und_section_ptr
2526 && s->symbol.section != bfd_com_section_ptr)
2527 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2528 && s->symbol.name == NULL))
707e555b 2529 s->n_sect = s->symbol.section->output_section->target_index;
92bc0e80 2530
b22161d6
IS		 2531 /* Number to preserve order for local and debug syms. */
2532 s->symbol.udata.i = i;
7f307238
IS		 2533 }
2534
b22161d6
IS		 2535 /* Sort the symbols. */
2536 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2537 sizeof (asymbol *), bfd_mach_o_cf_symbols);
7f307238 2538
b22161d6
IS		 2539 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2540 {
2541 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2542 s->symbol.udata.i = i; /* renumber. */
7f307238
IS		 2543 }
2544
2545 return TRUE;
2546}
2547
2548/* We build a flat table of sections, which can be re-ordered if necessary.
2549 Fill in the section number and other mach-o-specific data. */
2550
2551static bfd_boolean
2552bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2553{
2554 asection *sec;
2555 unsigned target_index;
2556 unsigned nsect;
2557
2558 nsect = bfd_count_sections (abfd);
68ffbac6 2559
7f307238
IS		 2560 /* Don't do it if it's already set - assume the application knows what it's
2561 doing. */
2562 if (mdata->nsects == nsect
2563 && (mdata->nsects == 0 || mdata->sections != NULL))
2564 return TRUE;
2565
a1165289
NC		 2566 /* We need to check that this can be done... */
2567 if (nsect > 255)
2568 {
4eca0228
AM		 2569 _bfd_error_handler (_("mach-o: there are too many sections (%u)"
2570 " maximum is 255,\n"), nsect);
a1165289
NC		 2571 return FALSE;
2572 }
2573
7f307238 2574 mdata->nsects = nsect;
64d29018
NC		 2575 mdata->sections = bfd_alloc2 (abfd,
2576 mdata->nsects, sizeof (bfd_mach_o_section *));
7f307238
IS		 2577 if (mdata->sections == NULL)
2578 return FALSE;
2579
7f307238 2580 /* Create Mach-O sections.
68ffbac6 2581 Section type, attribute and align should have been set when the
7f307238
IS		 2582 section was created - either read in or specified. */
2583 target_index = 0;
2584 for (sec = abfd->sections; sec; sec = sec->next)
2585 {
fd361982 2586 unsigned bfd_align = bfd_section_alignment (sec);
7f307238
IS		 2587 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2588
2589 mdata->sections[target_index] = msect;
2590
fd361982
AM		 2591 msect->addr = bfd_section_vma (sec);
2592 msect->size = bfd_section_size (sec);
7f307238 2593
68ffbac6 2594 /* Use the largest alignment set, in case it was bumped after the
7f307238
IS		 2595 section was created. */
2596 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2597
2598 msect->offset = 0;
2599 sec->target_index = ++target_index;
92bc0e80 2600 }
7f307238 2601
92bc0e80
TG		 2602 return TRUE;
2603}
2604
154a1ee5 2605bfd_boolean
116c20d2 2606bfd_mach_o_write_contents (bfd *abfd)
3af9a47b 2607{
046b007d 2608 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea
TG		 2609 bfd_mach_o_load_command *cmd;
2610 bfd_mach_o_symtab_command *symtab = NULL;
2611 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2612 bfd_mach_o_segment_command *linkedit = NULL;
3af9a47b 2613
7f307238 2614 /* Make the commands, if not already present. */
c9ffd2ea
TG		 2615 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2616 return FALSE;
2617 abfd->output_has_begun = TRUE;
92bc0e80 2618
c9ffd2ea 2619 /* Write the header. */
154a1ee5 2620 if (!bfd_mach_o_write_header (abfd, &mdata->header))
b34976b6 2621 return FALSE;
3af9a47b 2622
c9ffd2ea
TG		 2623 /* First pass: allocate the linkedit segment. */
2624 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2625 switch (cmd->type)
2626 {
2627 case BFD_MACH_O_LC_SEGMENT_64:
2628 case BFD_MACH_O_LC_SEGMENT:
2629 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2630 linkedit = &cmd->command.segment;
2631 break;
2632 case BFD_MACH_O_LC_SYMTAB:
2633 symtab = &cmd->command.symtab;
2634 break;
2635 case BFD_MACH_O_LC_DYSYMTAB:
2636 dysymtab = &cmd->command.dysymtab;
2637 break;
2638 case BFD_MACH_O_LC_DYLD_INFO:
2639 {
2640 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2641
2642 if (di->rebase_size != 0)
2643 {
2644 di->rebase_off = mdata->filelen;
2645 mdata->filelen += di->rebase_size;
2646 }
2647 if (di->bind_size != 0)
2648 {
2649 di->bind_off = mdata->filelen;
2650 mdata->filelen += di->bind_size;
2651 }
2652 if (di->weak_bind_size != 0)
2653 {
2654 di->weak_bind_off = mdata->filelen;
2655 mdata->filelen += di->weak_bind_size;
2656 }
2657 if (di->lazy_bind_size != 0)
2658 {
2659 di->lazy_bind_off = mdata->filelen;
2660 mdata->filelen += di->lazy_bind_size;
2661 }
2662 if (di->export_size != 0)
2663 {
2664 di->export_off = mdata->filelen;
2665 mdata->filelen += di->export_size;
2666 }
2667 }
2668 break;
2669 case BFD_MACH_O_LC_LOAD_DYLIB:
2670 case BFD_MACH_O_LC_LOAD_DYLINKER:
2671 case BFD_MACH_O_LC_MAIN:
2672 /* Nothing to do. */
2673 break;
2674 default:
4eca0228 2675 _bfd_error_handler
d42c267e
AM		 2676 (_("unable to allocate data for load command %#x"),
2677 cmd->type);
c9ffd2ea
TG		 2678 break;
2679 }
2680
2681 /* Specially handle symtab and dysymtab. */
2682
2683 /* Pre-allocate the symbol table (but not the string table). The reason
2684 is that the dysymtab is after the symbol table but before the string
2685 table (required by the native strip tool). */
2686 if (symtab != NULL)
2687 {
2688 unsigned int symlen;
2689 unsigned int wide = bfd_mach_o_wide_p (abfd);
2690
2691 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2692
2693 /* Align for symbols. */
2694 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2695 symtab->symoff = mdata->filelen;
2696
2697 symtab->nsyms = bfd_get_symcount (abfd);
2698 mdata->filelen += symtab->nsyms * symlen;
2699 }
2700
2701 /* Build the dysymtab. */
2702 if (dysymtab != NULL)
2703 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2704 return FALSE;
2705
2706 /* Write symtab and strtab. */
2707 if (symtab != NULL)
2708 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2709 return FALSE;
2710
2711 /* Adjust linkedit size. */
2712 if (linkedit != NULL)
2713 {
2714 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2715
2716 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2717 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2718 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2719
2720 linkedit->initprot = BFD_MACH_O_PROT_READ;
2721 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2722 | BFD_MACH_O_PROT_EXECUTE;
2723 }
2724
2725 /* Second pass: write commands. */
2726 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 2727 {
46d1c23b 2728 struct mach_o_load_command_external raw;
3af9a47b
NC		 2729 unsigned long typeflag;
2730
c9ffd2ea 2731 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
3af9a47b 2732
46d1c23b 2733 bfd_h_put_32 (abfd, typeflag, raw.cmd);
c9ffd2ea 2734 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
3af9a47b 2735
c9ffd2ea 2736 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
07d6d2b8 2737 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
b34976b6 2738 return FALSE;
3af9a47b 2739
c9ffd2ea 2740 switch (cmd->type)
3af9a47b
NC		 2741 {
2742 case BFD_MACH_O_LC_SEGMENT:
c9ffd2ea 2743 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
1e8a024a
TG		 2744 return FALSE;
2745 break;
2746 case BFD_MACH_O_LC_SEGMENT_64:
c9ffd2ea 2747 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
b34976b6 2748 return FALSE;
3af9a47b
NC		 2749 break;
2750 case BFD_MACH_O_LC_SYMTAB:
c9ffd2ea 2751 if (!bfd_mach_o_write_symtab (abfd, cmd))
b34976b6 2752 return FALSE;
3af9a47b 2753 break;
7f307238 2754 case BFD_MACH_O_LC_DYSYMTAB:
c9ffd2ea 2755 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
7f307238
IS		 2756 return FALSE;
2757 break;
3af9a47b
NC		 2758 case BFD_MACH_O_LC_THREAD:
2759 case BFD_MACH_O_LC_UNIXTHREAD:
c9ffd2ea 2760 if (!bfd_mach_o_write_thread (abfd, cmd))
b34976b6 2761 return FALSE;
3af9a47b 2762 break;
3af9a47b 2763 case BFD_MACH_O_LC_LOAD_DYLIB:
c9ffd2ea
TG		 2764 if (!bfd_mach_o_write_dylib (abfd, cmd))
2765 return FALSE;
2766 break;
3af9a47b 2767 case BFD_MACH_O_LC_LOAD_DYLINKER:
c9ffd2ea
TG		 2768 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2769 return FALSE;
2770 break;
2771 case BFD_MACH_O_LC_MAIN:
2772 if (!bfd_mach_o_write_main (abfd, cmd))
2773 return FALSE;
2774 break;
2775 case BFD_MACH_O_LC_DYLD_INFO:
2776 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2777 return FALSE;
3af9a47b
NC		 2778 break;
2779 default:
4eca0228 2780 _bfd_error_handler
d42c267e
AM		 2781 (_("unable to write unknown load command %#x"),
2782 cmd->type);
b34976b6 2783 return FALSE;
3af9a47b
NC		 2784 }
2785 }
2786
b34976b6 2787 return TRUE;
3af9a47b
NC		 2788}
2789
f1bde64c
TG		 2790static void
2791bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
07d6d2b8 2792 bfd_mach_o_section *s)
f1bde64c 2793{
f1bde64c
TG		 2794 if (seg->sect_head == NULL)
2795 seg->sect_head = s;
2796 else
2797 seg->sect_tail->next = s;
2798 seg->sect_tail = s;
2799}
2800
2801/* Create section Mach-O flags from BFD flags. */
2802
2803static void
3cc27770
TG		 2804bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2805 asection *sec)
f1bde64c
TG		 2806{
2807 flagword bfd_flags;
2808 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2809
2810 /* Create default flags. */
fd361982 2811 bfd_flags = bfd_section_flags (sec);
f1bde64c
TG		 2812 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2813 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2814 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2815 | BFD_MACH_O_S_REGULAR;
2816 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2817 s->flags = BFD_MACH_O_S_ZEROFILL;
2818 else if (bfd_flags & SEC_DEBUGGING)
2819 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2820 else
2821 s->flags = BFD_MACH_O_S_REGULAR;
2822}
2823
7f307238 2824static bfd_boolean
c9ffd2ea 2825bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
7f307238 2826{
c9ffd2ea
TG		 2827 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2828 unsigned int i, j;
7f307238 2829
7f307238 2830 seg->vmaddr = 0;
7f307238 2831 seg->fileoff = mdata->filelen;
c9ffd2ea
TG		 2832 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2833 | BFD_MACH_O_PROT_EXECUTE;
2834 seg->maxprot = seg->initprot;
7f307238 2835
68ffbac6 2836 /* Append sections to the segment.
09903f4b
IS		 2837
2838 This is a little tedious, we have to honor the need to account zerofill
2839 sections after all the rest. This forces us to do the calculation of
68ffbac6 2840 total vmsize in three passes so that any alignment increments are
09903f4b 2841 properly accounted. */
7f307238
IS		 2842 for (i = 0; i < mdata->nsects; ++i)
2843 {
2844 bfd_mach_o_section *s = mdata->sections[i];
2845 asection *sec = s->bfdsection;
2846
09903f4b
IS		 2847 /* Although we account for zerofill section sizes in vm order, they are
2848 placed in the file in source sequence. */
c9ffd2ea 2849 bfd_mach_o_append_section_to_segment (seg, s);
e5081f2f 2850 s->offset = 0;
68ffbac6 2851
c9ffd2ea
TG		 2852 /* Zerofill sections have zero file size & offset, the only content
2853 written to the file is the symbols. */
e5081f2f 2854 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
07d6d2b8 2855 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
c9ffd2ea 2856 == BFD_MACH_O_S_GB_ZEROFILL))
07d6d2b8 2857 continue;
e5081f2f 2858
c9ffd2ea
TG		 2859 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2860 sections, even those with zero size. */
e5081f2f 2861 if (s->size > 0)
c9ffd2ea 2862 {
09903f4b
IS		 2863 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2864 seg->vmsize += s->size;
2865
c9ffd2ea
TG		 2866 /* MH_OBJECT files have unaligned content. */
2867 if (1)
2868 {
2869 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
07d6d2b8
AM		 2870 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2871 }
09903f4b
IS		 2872 seg->filesize += s->size;
2873
c9ffd2ea
TG		 2874 /* The system tools write even zero-sized sections with an offset
2875 field set to the current file position. */
07d6d2b8 2876 s->offset = mdata->filelen;
c9ffd2ea 2877 }
7f307238
IS		 2878
2879 sec->filepos = s->offset;
7f307238
IS		 2880 mdata->filelen += s->size;
2881 }
2882
3cc27770 2883 /* Now pass through again, for zerofill, only now we just update the
c9ffd2ea
TG		 2884 vmsize, and then for zerofill_GB. */
2885 for (j = 0; j < 2; j++)
09903f4b 2886 {
c9ffd2ea 2887 unsigned int stype;
68ffbac6 2888
c9ffd2ea
TG		 2889 if (j == 0)
2890 stype = BFD_MACH_O_S_ZEROFILL;
2891 else
2892 stype = BFD_MACH_O_S_GB_ZEROFILL;
09903f4b 2893
c9ffd2ea
TG		 2894 for (i = 0; i < mdata->nsects; ++i)
2895 {
2896 bfd_mach_o_section *s = mdata->sections[i];
2897
2898 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2899 continue;
2900
2901 if (s->size > 0)
2902 {
2903 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2904 seg->vmsize += s->size;
2905 }
09903f4b
IS		 2906 }
2907 }
bb76d940 2908
09903f4b 2909 /* Allocate space for the relocations. */
707e555b 2910 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
bb76d940
IS		 2911
2912 for (i = 0; i < mdata->nsects; ++i)
2913 {
2914 bfd_mach_o_section *ms = mdata->sections[i];
2915 asection *sec = ms->bfdsection;
68ffbac6 2916
c9ffd2ea
TG		 2917 ms->nreloc = sec->reloc_count;
2918 if (ms->nreloc == 0)
07d6d2b8 2919 {
c9ffd2ea 2920 /* Clear nreloc and reloff if there is no relocs. */
bb76d940
IS		 2921 ms->reloff = 0;
2922 continue;
07d6d2b8 2923 }
bb76d940
IS		 2924 sec->rel_filepos = mdata->filelen;
2925 ms->reloff = sec->rel_filepos;
2926 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2927 }
7f307238
IS		 2928
2929 return TRUE;
2930}
2931
c9ffd2ea
TG		 2932static bfd_boolean
2933bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
50d10658 2934{
c9ffd2ea 2935 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
50d10658 2936 unsigned int i;
c9ffd2ea
TG		 2937 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2938 bfd_vma vma;
2939 bfd_mach_o_section *s;
2940
2941 seg->vmsize = 0;
50d10658 2942
c9ffd2ea
TG		 2943 seg->fileoff = mdata->filelen;
2944 seg->maxprot = 0;
2945 seg->initprot = 0;
2946 seg->flags = 0;
2947
2948 /* Append sections to the segment. We assume they are properly ordered
2949 by vma (but we check that). */
2950 vma = 0;
50d10658
IS		 2951 for (i = 0; i < mdata->nsects; ++i)
2952 {
c9ffd2ea 2953 s = mdata->sections[i];
50d10658 2954
c9ffd2ea
TG		 2955 /* Consider only sections for this segment. */
2956 if (strcmp (seg->segname, s->segname) != 0)
2957 continue;
50d10658 2958
c9ffd2ea 2959 bfd_mach_o_append_section_to_segment (seg, s);
7f307238 2960
86eafac0
NC		 2961 if (s->addr < vma)
2962 {
4eca0228 2963 _bfd_error_handler
695344c0 2964 /* xgettext:c-format */
2dcf00ce
AM		 2965 (_("section address (%#" PRIx64 ") "
2966 "below start of segment (%#" PRIx64 ")"),
2967 (uint64_t) s->addr, (uint64_t) vma);
86eafac0
NC		 2968 return FALSE;
2969 }
2970
c9ffd2ea 2971 vma = s->addr + s->size;
7f307238
IS		 2972 }
2973
c9ffd2ea
TG		 2974 /* Set segment file offset: make it page aligned. */
2975 vma = seg->sect_head->addr;
2976 seg->vmaddr = vma & ~pagemask;
2977 if ((mdata->filelen & pagemask) > (vma & pagemask))
2978 mdata->filelen += pagemask + 1;
2979 seg->fileoff = mdata->filelen & ~pagemask;
2980 mdata->filelen = seg->fileoff + (vma & pagemask);
7f307238 2981
c9ffd2ea
TG		 2982 /* Set section file offset. */
2983 for (s = seg->sect_head; s != NULL; s = s->next)
7f307238 2984 {
c9ffd2ea 2985 asection *sec = s->bfdsection;
fd361982 2986 flagword flags = bfd_section_flags (sec);
b22161d6 2987
c9ffd2ea
TG		 2988 /* Adjust segment size. */
2989 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2990 seg->vmsize += s->size;
2991
2992 /* File offset and length. */
2993 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2994
2995 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
07d6d2b8 2996 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
c9ffd2ea 2997 != BFD_MACH_O_S_GB_ZEROFILL))
b22161d6 2998 {
c9ffd2ea
TG		 2999 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
3000
3001 s->offset = mdata->filelen;
3002 s->bfdsection->filepos = s->offset;
3003
3004 seg->filesize += s->size;
3005 mdata->filelen += s->size;
b22161d6 3006 }
c9ffd2ea 3007 else
b22161d6 3008 {
c9ffd2ea
TG		 3009 s->offset = 0;
3010 s->bfdsection->filepos = 0;
3011 }
3012
3013 /* Set protection. */
3014 if (flags & SEC_LOAD)
3015 {
3016 if (flags & SEC_CODE)
3017 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
3018 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
3019 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
b22161d6 3020 }
c9ffd2ea
TG		 3021
3022 /* Relocs shouldn't appear in non-object files. */
3023 if (s->bfdsection->reloc_count != 0)
3024 return FALSE;
b22161d6 3025 }
c9ffd2ea
TG		 3026
3027 /* Set maxprot. */
3028 if (seg->initprot != 0)
3029 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
3030 | BFD_MACH_O_PROT_EXECUTE;
b22161d6 3031 else
c9ffd2ea 3032 seg->maxprot = 0;
b22161d6 3033
c9ffd2ea
TG		 3034 /* Round segment size (and file size). */
3035 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
3036 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
3037 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
7f307238 3038
c9ffd2ea
TG		 3039 return TRUE;
3040}
68ffbac6 3041
c9ffd2ea
TG		 3042/* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
3043 fields in header. */
68ffbac6 3044
86eafac0 3045static bfd_boolean
c9ffd2ea
TG		 3046bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
3047{
3048 unsigned wide = mach_o_wide_p (&mdata->header);
3049 unsigned int hdrlen;
3050 ufile_ptr offset;
3051 bfd_mach_o_load_command *cmd;
3052 unsigned int align;
86eafac0 3053 bfd_boolean ret = TRUE;
c9ffd2ea
TG		 3054
3055 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3056 align = wide ? 8 - 1 : 4 - 1;
3057 offset = hdrlen;
3058 mdata->header.ncmds = 0;
50d10658 3059
c9ffd2ea
TG		 3060 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
3061 {
3062 mdata->header.ncmds++;
3063 cmd->offset = offset;
68ffbac6 3064
c9ffd2ea
TG		 3065 switch (cmd->type)
3066 {
3067 case BFD_MACH_O_LC_SEGMENT_64:
3068 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
3069 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
3070 break;
3071 case BFD_MACH_O_LC_SEGMENT:
3072 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
3073 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
3074 break;
3075 case BFD_MACH_O_LC_SYMTAB:
3076 cmd->len = sizeof (struct mach_o_symtab_command_external)
3077 + BFD_MACH_O_LC_SIZE;
3078 break;
3079 case BFD_MACH_O_LC_DYSYMTAB:
3080 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
3081 + BFD_MACH_O_LC_SIZE;
3082 break;
3083 case BFD_MACH_O_LC_LOAD_DYLIB:
3084 cmd->len = sizeof (struct mach_o_dylib_command_external)
3085 + BFD_MACH_O_LC_SIZE;
3086 cmd->command.dylib.name_offset = cmd->len;
3087 cmd->len += strlen (cmd->command.dylib.name_str);
3088 cmd->len = (cmd->len + align) & ~align;
3089 break;
3090 case BFD_MACH_O_LC_LOAD_DYLINKER:
3091 cmd->len = sizeof (struct mach_o_str_command_external)
3092 + BFD_MACH_O_LC_SIZE;
3093 cmd->command.dylinker.name_offset = cmd->len;
3094 cmd->len += strlen (cmd->command.dylinker.name_str);
3095 cmd->len = (cmd->len + align) & ~align;
3096 break;
3097 case BFD_MACH_O_LC_MAIN:
3098 cmd->len = sizeof (struct mach_o_entry_point_command_external)
3099 + BFD_MACH_O_LC_SIZE;
3100 break;
3101 case BFD_MACH_O_LC_DYLD_INFO:
3102 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
3103 + BFD_MACH_O_LC_SIZE;
3104 break;
3105 default:
4eca0228 3106 _bfd_error_handler
d42c267e
AM		 3107 (_("unable to layout unknown load command %#x"),
3108 cmd->type);
86eafac0 3109 ret = FALSE;
c9ffd2ea 3110 break;
7f307238 3111 }
c9ffd2ea
TG		 3112
3113 BFD_ASSERT (cmd->len % (align + 1) == 0);
3114 offset += cmd->len;
7f307238 3115 }
c9ffd2ea
TG		 3116 mdata->header.sizeofcmds = offset - hdrlen;
3117 mdata->filelen = offset;
86eafac0
NC		 3118
3119 return ret;
c9ffd2ea 3120}
7f307238 3121
c9ffd2ea
TG		 3122/* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
3123 segment. */
3124
3125static void
3126bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
3127 bfd_mach_o_load_command *cmd,
3128 const char *segname, unsigned int nbr_sect)
3129{
3130 bfd_mach_o_segment_command *seg = &cmd->command.segment;
3131 unsigned wide = mach_o_wide_p (&mdata->header);
3132
3133 /* Init segment command. */
3134 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
3135 cmd->type_required = FALSE;
3136
3137 strcpy (seg->segname, segname);
3138 seg->nsects = nbr_sect;
3139
3140 seg->vmaddr = 0;
3141 seg->vmsize = 0;
3142
3143 seg->fileoff = 0;
3144 seg->filesize = 0;
3145 seg->maxprot = 0;
3146 seg->initprot = 0;
3147 seg->flags = 0;
3148 seg->sect_head = NULL;
3149 seg->sect_tail = NULL;
7f307238
IS		 3150}
3151
3152/* Build Mach-O load commands (currently assuming an MH_OBJECT file).
3153 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
3154 and copy functionality. */
154a1ee5
TG		 3155
3156bfd_boolean
3157bfd_mach_o_build_commands (bfd *abfd)
3158{
046b007d 3159 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bbd56171 3160 unsigned wide = mach_o_wide_p (&mdata->header);
c9ffd2ea
TG		 3161 unsigned int nbr_segcmd = 0;
3162 bfd_mach_o_load_command *commands;
3163 unsigned int nbr_commands;
bbd56171
IS		 3164 int symtab_idx = -1;
3165 int dysymtab_idx = -1;
c9ffd2ea
TG		 3166 int main_idx = -1;
3167 unsigned int i;
154a1ee5 3168
c9ffd2ea
TG		 3169 /* Return now if already built. */
3170 if (mdata->header.ncmds != 0)
3171 return TRUE;
154a1ee5 3172
7f307238 3173 /* Fill in the file type, if not already set. */
7f307238 3174 if (mdata->header.filetype == 0)
154a1ee5 3175 {
7f307238 3176 if (abfd->flags & EXEC_P)
07d6d2b8 3177 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
7f307238 3178 else if (abfd->flags & DYNAMIC)
07d6d2b8 3179 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
7f307238 3180 else
07d6d2b8 3181 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
154a1ee5 3182 }
7f307238
IS		 3183
3184 /* If hasn't already been done, flatten sections list, and sort
3185 if/when required. Must be done before the symbol table is adjusted,
3186 since that depends on properly numbered sections. */
3187 if (mdata->nsects == 0 || mdata->sections == NULL)
3188 if (! bfd_mach_o_mangle_sections (abfd, mdata))
3189 return FALSE;
3190
3191 /* Order the symbol table, fill-in/check mach-o specific fields and
3192 partition out any indirect symbols. */
b22161d6 3193 if (!bfd_mach_o_mangle_symbols (abfd))
7f307238
IS		 3194 return FALSE;
3195
c9ffd2ea
TG		 3196 /* Segment commands. */
3197 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3198 {
3199 /* Only one segment for all the sections. But the segment is
3200 optional if there is no sections. */
3201 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
3202 }
3203 else
3204 {
3205 bfd_mach_o_section *prev_sect = NULL;
bbd56171 3206
c9ffd2ea
TG		 3207 /* One pagezero segment and one linkedit segment. */
3208 nbr_segcmd = 2;
bbd56171 3209
c9ffd2ea
TG		 3210 /* Create one segment for associated segment name in sections.
3211 Assume that sections with the same segment name are consecutive. */
3212 for (i = 0; i < mdata->nsects; i++)
3213 {
3214 bfd_mach_o_section *this_sect = mdata->sections[i];
bbd56171 3215
c9ffd2ea
TG		 3216 if (prev_sect == NULL
3217 || strcmp (prev_sect->segname, this_sect->segname) != 0)
3218 {
3219 nbr_segcmd++;
3220 prev_sect = this_sect;
3221 }
3222 }
154a1ee5 3223 }
154a1ee5 3224
c9ffd2ea
TG		 3225 nbr_commands = nbr_segcmd;
3226
3227 /* One command for the symbol table (only if there are symbols. */
7f307238 3228 if (bfd_get_symcount (abfd) > 0)
c9ffd2ea 3229 symtab_idx = nbr_commands++;
c2f09c75 3230
bbd56171
IS		 3231 /* FIXME:
3232 This is a rather crude test for whether we should build a dysymtab. */
3233 if (bfd_mach_o_should_emit_dysymtab ()
3234 && bfd_get_symcount (abfd))
3235 {
bbd56171
IS		 3236 /* If there should be a case where a dysymtab could be emitted without
3237 a symtab (seems improbable), this would need amending. */
c9ffd2ea 3238 dysymtab_idx = nbr_commands++;
bbd56171 3239 }
154a1ee5 3240
c9ffd2ea
TG		 3241 /* Add an entry point command. */
3242 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3243 && bfd_get_start_address (abfd) != 0)
3244 main_idx = nbr_commands++;
c2f09c75 3245
bbd56171 3246 /* Well, we must have a header, at least. */
c9ffd2ea 3247 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
f1bde64c 3248
bbd56171 3249 /* A bit unusual, but no content is valid;
7f307238 3250 as -n empty.s -o empty.o */
c9ffd2ea
TG		 3251 if (nbr_commands == 0)
3252 {
3253 /* Layout commands (well none...) and set headers command fields. */
86eafac0 3254 return bfd_mach_o_layout_commands (mdata);
c9ffd2ea 3255 }
f1bde64c 3256
c9ffd2ea
TG		 3257 /* Create commands for segments (and symtabs), prepend them. */
3258 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3259 if (commands == NULL)
7f307238 3260 return FALSE;
c9ffd2ea
TG		 3261 for (i = 0; i < nbr_commands - 1; i++)
3262 commands[i].next = &commands[i + 1];
3263 commands[nbr_commands - 1].next = mdata->first_command;
3264 if (mdata->first_command == NULL)
3265 mdata->last_command = &commands[nbr_commands - 1];
3266 mdata->first_command = &commands[0];
3267
3268 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3269 {
3270 /* For object file, there is only one segment. */
3271 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3272 }
3273 else if (nbr_segcmd != 0)
68ffbac6 3274 {
c9ffd2ea 3275 bfd_mach_o_load_command *cmd;
7f307238 3276
c9ffd2ea 3277 BFD_ASSERT (nbr_segcmd >= 2);
7f307238 3278
c9ffd2ea
TG		 3279 /* The pagezero. */
3280 cmd = &commands[0];
3281 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3282
3283 /* Segments from sections. */
3284 cmd++;
3285 for (i = 0; i < mdata->nsects;)
7f307238 3286 {
c9ffd2ea
TG		 3287 const char *segname = mdata->sections[i]->segname;
3288 unsigned int nbr_sect = 1;
3289
3290 /* Count number of sections for this segment. */
3291 for (i++; i < mdata->nsects; i++)
3292 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3293 nbr_sect++;
3294 else
3295 break;
3296
3297 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3298 cmd++;
7f307238 3299 }
bbd56171 3300
c9ffd2ea
TG		 3301 /* The linkedit. */
3302 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
7f307238 3303 }
f1bde64c 3304
bbd56171 3305 if (symtab_idx >= 0)
7f307238
IS		 3306 {
3307 /* Init symtab command. */
c9ffd2ea 3308 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
68ffbac6 3309
bbd56171 3310 cmd->type = BFD_MACH_O_LC_SYMTAB;
bbd56171 3311 cmd->type_required = FALSE;
7f307238 3312 }
154a1ee5 3313
bbd56171
IS		 3314 /* If required, setup symtab command, see comment above about the quality
3315 of this test. */
3316 if (dysymtab_idx >= 0)
7f307238 3317 {
c9ffd2ea 3318 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
bbd56171 3319
7f307238 3320 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
7f307238 3321 cmd->type_required = FALSE;
c9ffd2ea
TG		 3322 }
3323
3324 /* Create the main command. */
3325 if (main_idx >= 0)
3326 {
3327 bfd_mach_o_load_command *cmd = &commands[main_idx];
7f307238 3328
c9ffd2ea
TG		 3329 cmd->type = BFD_MACH_O_LC_MAIN;
3330 cmd->type_required = TRUE;
3331
3332 cmd->command.main.entryoff = 0;
3333 cmd->command.main.stacksize = 0;
154a1ee5 3334 }
154a1ee5 3335
c9ffd2ea 3336 /* Layout commands. */
86eafac0
NC		 3337 if (! bfd_mach_o_layout_commands (mdata))
3338 return FALSE;
c9ffd2ea 3339
7f307238
IS		 3340 /* So, now we have sized the commands and the filelen set to that.
3341 Now we can build the segment command and set the section file offsets. */
c9ffd2ea
TG		 3342 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3343 {
3344 for (i = 0; i < nbr_segcmd; i++)
3345 if (!bfd_mach_o_build_obj_seg_command
3346 (abfd, &commands[i].command.segment))
3347 return FALSE;
3348 }
3349 else
3350 {
3351 bfd_vma maxvma = 0;
7f307238 3352
c9ffd2ea
TG		 3353 /* Skip pagezero and linkedit segments. */
3354 for (i = 1; i < nbr_segcmd - 1; i++)
3355 {
3356 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3357
3358 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3359 return FALSE;
3360
3361 if (seg->vmaddr + seg->vmsize > maxvma)
3362 maxvma = seg->vmaddr + seg->vmsize;
3363 }
3364
3365 /* Set the size of __PAGEZERO. */
3366 commands[0].command.segment.vmsize =
3367 commands[1].command.segment.vmaddr;
3368
3369 /* Set the vma and fileoff of __LINKEDIT. */
3370 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3371 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3372
3373 /* Set entry point (once segments have been laid out). */
3374 if (main_idx >= 0)
3375 commands[main_idx].command.main.entryoff =
3376 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3377 }
7f307238 3378
154a1ee5
TG		 3379 return TRUE;
3380}
3381
3382/* Set the contents of a section. */
3383
3384bfd_boolean
3385bfd_mach_o_set_section_contents (bfd *abfd,
3386 asection *section,
3387 const void * location,
3388 file_ptr offset,
3389 bfd_size_type count)
3390{
3391 file_ptr pos;
3392
7f307238
IS		 3393 /* Trying to write the first section contents will trigger the creation of
3394 the load commands if they are not already present. */
c9ffd2ea 3395 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
154a1ee5
TG		 3396 return FALSE;
3397
3398 if (count == 0)
3399 return TRUE;
3400
3401 pos = section->filepos + offset;
3402 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3403 || bfd_bwrite (location, count, abfd) != count)
3404 return FALSE;
3405
3406 return TRUE;
3407}
3408
3409int
116c20d2 3410bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
a6b96beb 3411 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3af9a47b
NC		 3412{
3413 return 0;
3414}
3415
3416/* Make an empty symbol. This is required only because
3417 bfd_make_section_anyway wants to create a symbol for the section. */
3418
154a1ee5 3419asymbol *
116c20d2 3420bfd_mach_o_make_empty_symbol (bfd *abfd)
3af9a47b 3421{
d3ce72d0
NC		 3422 asymbol *new_symbol;
3423
3424 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3425 if (new_symbol == NULL)
3426 return new_symbol;
3427 new_symbol->the_bfd = abfd;
b22161d6 3428 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
d3ce72d0 3429 return new_symbol;
3af9a47b
NC		 3430}
3431
154a1ee5 3432static bfd_boolean
47daa70f 3433bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header)
3af9a47b 3434{
46d1c23b 3435 struct mach_o_header_external raw;
1e8a024a 3436 unsigned int size;
edeb6e24 3437 bfd_vma (*get32) (const void *) = NULL;
3af9a47b 3438
1e8a024a 3439 /* Just read the magic number. */
47daa70f 3440 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
46d1c23b 3441 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
154a1ee5 3442 return FALSE;
3af9a47b 3443
46d1c23b 3444 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b
NC		 3445 {
3446 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 3447 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a 3448 header->version = 1;
3af9a47b
NC		 3449 get32 = bfd_getb32;
3450 }
46d1c23b 3451 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b 3452 {
a95a4550 3453 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 3454 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a
TG		 3455 header->version = 1;
3456 get32 = bfd_getl32;
3457 }
46d1c23b 3458 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 3459 {
3460 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 3461 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a
TG		 3462 header->version = 2;
3463 get32 = bfd_getb32;
3464 }
46d1c23b 3465 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 3466 {
3467 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 3468 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a 3469 header->version = 2;
3af9a47b
NC		 3470 get32 = bfd_getl32;
3471 }
3472 else
3473 {
3474 header->byteorder = BFD_ENDIAN_UNKNOWN;
154a1ee5 3475 return FALSE;
3af9a47b 3476 }
a95a4550 3477
1e8a024a 3478 /* Once the size of the header is known, read the full header. */
c2f09c75 3479 size = mach_o_wide_p (header) ?
154a1ee5 3480 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1e8a024a 3481
47daa70f 3482 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
46d1c23b 3483 || bfd_bread (&raw, size, abfd) != size)
154a1ee5 3484 return FALSE;
1e8a024a 3485
46d1c23b
TG		 3486 header->cputype = (*get32) (raw.cputype);
3487 header->cpusubtype = (*get32) (raw.cpusubtype);
3488 header->filetype = (*get32) (raw.filetype);
3489 header->ncmds = (*get32) (raw.ncmds);
3490 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3491 header->flags = (*get32) (raw.flags);
3af9a47b 3492
c2f09c75 3493 if (mach_o_wide_p (header))
46d1c23b 3494 header->reserved = (*get32) (raw.reserved);
facf03f2
TG		 3495 else
3496 header->reserved = 0;
1e8a024a 3497
154a1ee5 3498 return TRUE;
3af9a47b
NC		 3499}
3500
f1bde64c
TG		 3501bfd_boolean
3502bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3503{
3504 bfd_mach_o_section *s;
fd361982 3505 unsigned bfdalign = bfd_section_alignment (sec);
f1bde64c
TG		 3506
3507 s = bfd_mach_o_get_mach_o_section (sec);
3508 if (s == NULL)
3509 {
3510 flagword bfd_flags;
a4551119 3511 static const mach_o_section_name_xlat * xlat;
f1bde64c
TG		 3512
3513 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3514 if (s == NULL)
3515 return FALSE;
3516 sec->used_by_bfd = s;
3517 s->bfdsection = sec;
3518
a4551119
TG		 3519 /* Create the Darwin seg/sect name pair from the bfd name.
3520 If this is a canonical name for which a specific paiting exists
3521 there will also be defined flags, type, attribute and alignment
3522 values. */
3523 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3524 if (xlat != NULL)
3525 {
3526 s->flags = xlat->macho_sectype | xlat->macho_secattr;
68ffbac6 3527 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
a4551119 3528 : bfdalign;
fd361982
AM		 3529 bfd_set_section_alignment (sec, s->align);
3530 bfd_flags = bfd_section_flags (sec);
a4551119 3531 if (bfd_flags == SEC_NO_FLAGS)
fd361982 3532 bfd_set_section_flags (sec, xlat->bfd_flags);
a4551119 3533 }
f1bde64c 3534 else
a4551119
TG		 3535 /* Create default flags. */
3536 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
f1bde64c
TG		 3537 }
3538
3539 return _bfd_generic_new_section_hook (abfd, sec);
3540}
3541
3542static void
fd361982 3543bfd_mach_o_init_section_from_mach_o (asection *sec, unsigned long prot)
3af9a47b 3544{
117ed4f8 3545 flagword flags;
f1bde64c 3546 bfd_mach_o_section *section;
3af9a47b 3547
fd361982 3548 flags = bfd_section_flags (sec);
f1bde64c 3549 section = bfd_mach_o_get_mach_o_section (sec);
3af9a47b 3550
a4551119
TG		 3551 /* TODO: see if we should use the xlat system for doing this by
3552 preference and fall back to this for unknown sections. */
3553
8462aec7 3554 if (flags == SEC_NO_FLAGS)
ef17cb22 3555 {
8462aec7
TG		 3556 /* Try to guess flags. */
3557 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
07d6d2b8 3558 flags = SEC_DEBUGGING;
8462aec7 3559 else
07d6d2b8
AM		 3560 {
3561 flags = SEC_ALLOC;
3562 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3563 != BFD_MACH_O_S_ZEROFILL)
3564 {
3565 flags |= SEC_LOAD;
3566 if (prot & BFD_MACH_O_PROT_EXECUTE)
3567 flags |= SEC_CODE;
3568 if (prot & BFD_MACH_O_PROT_WRITE)
3569 flags |= SEC_DATA;
3570 else if (prot & BFD_MACH_O_PROT_READ)
3571 flags |= SEC_READONLY;
3572 }
3573 }
ef17cb22 3574 }
15e1c58a
TG		 3575 else
3576 {
8462aec7 3577 if ((flags & SEC_DEBUGGING) == 0)
07d6d2b8 3578 flags |= SEC_ALLOC;
15e1c58a 3579 }
8462aec7
TG		 3580
3581 if (section->offset != 0)
3582 flags |= SEC_HAS_CONTENTS;
92bc0e80
TG		 3583 if (section->nreloc != 0)
3584 flags |= SEC_RELOC;
3585
fd361982 3586 bfd_set_section_flags (sec, flags);
f1bde64c
TG		 3587
3588 sec->vma = section->addr;
3589 sec->lma = section->addr;
3590 sec->size = section->size;
3591 sec->filepos = section->offset;
3592 sec->alignment_power = section->align;
3593 sec->segment_mark = 0;
3594 sec->reloc_count = section->nreloc;
3595 sec->rel_filepos = section->reloff;
3596}
3597
3598static asection *
3599bfd_mach_o_make_bfd_section (bfd *abfd,
07d6d2b8
AM		 3600 const unsigned char *segname,
3601 const unsigned char *sectname)
f1bde64c
TG		 3602{
3603 const char *sname;
3604 flagword flags;
a95a4550 3605
f1bde64c
TG		 3606 bfd_mach_o_convert_section_name_to_bfd
3607 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3608 if (sname == NULL)
3609 return NULL;
3af9a47b 3610
f1bde64c 3611 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3af9a47b
NC		 3612}
3613
f1bde64c 3614static asection *
47daa70f 3615bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot)
3af9a47b 3616{
46d1c23b 3617 struct mach_o_section_32_external raw;
f1bde64c
TG		 3618 asection *sec;
3619 bfd_mach_o_section *section;
3af9a47b 3620
47daa70f
TG		 3621 if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3622 != BFD_MACH_O_SECTION_SIZE)
f1bde64c 3623 return NULL;
a95a4550 3624
5a5cbf72 3625 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 3626 if (sec == NULL)
3627 return NULL;
3628
3629 section = bfd_mach_o_get_mach_o_section (sec);
3630 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3631 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3632 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 3633 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 3634 section->addr = bfd_h_get_32 (abfd, raw.addr);
3635 section->size = bfd_h_get_32 (abfd, raw.size);
3636 section->offset = bfd_h_get_32 (abfd, raw.offset);
3637 section->align = bfd_h_get_32 (abfd, raw.align);
c86934ce
NC		 3638 /* PR 17512: file: 0017eb76. */
3639 if (section->align > 64)
3640 {
4eca0228 3641 _bfd_error_handler
d42c267e 3642 (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, "
4eca0228 3643 "using 32 instead"), section->align);
c86934ce
NC		 3644 section->align = 32;
3645 }
46d1c23b
TG		 3646 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3647 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3648 section->flags = bfd_h_get_32 (abfd, raw.flags);
3649 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3650 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
1e8a024a 3651 section->reserved3 = 0;
1e8a024a 3652
fd361982 3653 bfd_mach_o_init_section_from_mach_o (sec, prot);
1e8a024a 3654
f1bde64c 3655 return sec;
1e8a024a
TG		 3656}
3657
f1bde64c 3658static asection *
47daa70f 3659bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot)
1e8a024a 3660{
46d1c23b 3661 struct mach_o_section_64_external raw;
f1bde64c
TG		 3662 asection *sec;
3663 bfd_mach_o_section *section;
1e8a024a 3664
47daa70f
TG		 3665 if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3666 != BFD_MACH_O_SECTION_64_SIZE)
f1bde64c
TG		 3667 return NULL;
3668
5a5cbf72 3669 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 3670 if (sec == NULL)
3671 return NULL;
1e8a024a 3672
f1bde64c
TG		 3673 section = bfd_mach_o_get_mach_o_section (sec);
3674 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3675 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3676 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 3677 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 3678 section->addr = bfd_h_get_64 (abfd, raw.addr);
3679 section->size = bfd_h_get_64 (abfd, raw.size);
3680 section->offset = bfd_h_get_32 (abfd, raw.offset);
3681 section->align = bfd_h_get_32 (abfd, raw.align);
c86934ce
NC		 3682 if (section->align > 64)
3683 {
4eca0228 3684 _bfd_error_handler
d42c267e 3685 (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, "
4eca0228 3686 "using 32 instead"), section->align);
c86934ce
NC		 3687 section->align = 32;
3688 }
46d1c23b
TG		 3689 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3690 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3691 section->flags = bfd_h_get_32 (abfd, raw.flags);
3692 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3693 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3694 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3af9a47b 3695
fd361982 3696 bfd_mach_o_init_section_from_mach_o (sec, prot);
3af9a47b 3697
f1bde64c 3698 return sec;
3af9a47b
NC		 3699}
3700
f1bde64c 3701static asection *
47daa70f 3702bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide)
1e8a024a
TG		 3703{
3704 if (wide)
47daa70f 3705 return bfd_mach_o_read_section_64 (abfd, prot);
1e8a024a 3706 else
47daa70f 3707 return bfd_mach_o_read_section_32 (abfd, prot);
1e8a024a
TG		 3708}
3709
afbb9e17 3710static bfd_boolean
ab273af8 3711bfd_mach_o_read_symtab_symbol (bfd *abfd,
07d6d2b8
AM		 3712 bfd_mach_o_symtab_command *sym,
3713 bfd_mach_o_asymbol *s,
3714 unsigned long i)
3af9a47b 3715{
046b007d 3716 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c2f09c75 3717 unsigned int wide = mach_o_wide_p (&mdata->header);
046b007d
TG		 3718 unsigned int symwidth =
3719 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
92bc0e80 3720 unsigned int symoff = sym->symoff + (i * symwidth);
46d1c23b 3721 struct mach_o_nlist_64_external raw;
3af9a47b
NC		 3722 unsigned char type = -1;
3723 unsigned char section = -1;
3724 short desc = -1;
1e8a024a 3725 symvalue value = -1;
3af9a47b
NC		 3726 unsigned long stroff = -1;
3727 unsigned int symtype = -1;
3728
3729 BFD_ASSERT (sym->strtab != NULL);
3730
c2f09c75 3731 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
46d1c23b 3732 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3af9a47b 3733 {
4eca0228 3734 _bfd_error_handler
695344c0 3735 /* xgettext:c-format */
07d6d2b8
AM		 3736 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"),
3737 symwidth, symoff);
afbb9e17 3738 return FALSE;
3af9a47b
NC		 3739 }
3740
46d1c23b
TG		 3741 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3742 type = bfd_h_get_8 (abfd, raw.n_type);
c2f09c75 3743 symtype = type & BFD_MACH_O_N_TYPE;
46d1c23b
TG		 3744 section = bfd_h_get_8 (abfd, raw.n_sect);
3745 desc = bfd_h_get_16 (abfd, raw.n_desc);
1e8a024a 3746 if (wide)
46d1c23b 3747 value = bfd_h_get_64 (abfd, raw.n_value);
1e8a024a 3748 else
46d1c23b 3749 value = bfd_h_get_32 (abfd, raw.n_value);
3af9a47b
NC		 3750
3751 if (stroff >= sym->strsize)
3752 {
4eca0228 3753 _bfd_error_handler
695344c0 3754 /* xgettext:c-format */
07d6d2b8
AM		 3755 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"),
3756 stroff,
3757 sym->strsize);
afbb9e17 3758 return FALSE;
3af9a47b
NC		 3759 }
3760
92bc0e80
TG		 3761 s->symbol.the_bfd = abfd;
3762 s->symbol.name = sym->strtab + stroff;
3763 s->symbol.value = value;
3764 s->symbol.flags = 0x0;
b22161d6 3765 s->symbol.udata.i = i;
92bc0e80
TG		 3766 s->n_type = type;
3767 s->n_sect = section;
3768 s->n_desc = desc;
3af9a47b
NC		 3769
3770 if (type & BFD_MACH_O_N_STAB)
3771 {
92bc0e80
TG		 3772 s->symbol.flags |= BSF_DEBUGGING;
3773 s->symbol.section = bfd_und_section_ptr;
15e1c58a
TG		 3774 switch (type)
3775 {
3776 case N_FUN:
3777 case N_STSYM:
3778 case N_LCSYM:
3779 case N_BNSYM:
3780 case N_SLINE:
3781 case N_ENSYM:
3782 case N_ECOMM:
3783 case N_ECOML:
3784 case N_GSYM:
3785 if ((section > 0) && (section <= mdata->nsects))
3786 {
92bc0e80
TG		 3787 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3788 s->symbol.value =
07d6d2b8 3789 s->symbol.value - mdata->sections[section - 1]->addr;
15e1c58a
TG		 3790 }
3791 break;
3792 }
3af9a47b
NC		 3793 }
3794 else
3795 {
b22161d6 3796 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
92bc0e80 3797 s->symbol.flags |= BSF_GLOBAL;
b22161d6 3798 else
92bc0e80 3799 s->symbol.flags |= BSF_LOCAL;
3af9a47b
NC		 3800
3801 switch (symtype)
3802 {
3803 case BFD_MACH_O_N_UNDF:
07d6d2b8
AM		 3804 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3805 && s->symbol.value != 0)
3806 {
3807 /* A common symbol. */
3808 s->symbol.section = bfd_com_section_ptr;
3809 s->symbol.flags = BSF_NO_FLAGS;
3810 }
3811 else
3812 {
3813 s->symbol.section = bfd_und_section_ptr;
3814 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3815 s->symbol.flags |= BSF_WEAK;
3816 }
3af9a47b
NC		 3817 break;
3818 case BFD_MACH_O_N_PBUD:
92bc0e80 3819 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3820 break;
3821 case BFD_MACH_O_N_ABS:
92bc0e80 3822 s->symbol.section = bfd_abs_section_ptr;
3af9a47b
NC		 3823 break;
3824 case BFD_MACH_O_N_SECT:
3825 if ((section > 0) && (section <= mdata->nsects))
3826 {
92bc0e80
TG		 3827 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3828 s->symbol.value =
07d6d2b8 3829 s->symbol.value - mdata->sections[section - 1]->addr;
3af9a47b
NC		 3830 }
3831 else
3832 {
3833 /* Mach-O uses 0 to mean "no section"; not an error. */
3834 if (section != 0)
3835 {
4eca0228 3836 _bfd_error_handler
695344c0 3837 /* xgettext:c-format */
4eca0228
AM		 3838 (_("bfd_mach_o_read_symtab_symbol: "
3839 "symbol \"%s\" specified invalid section %d (max %lu): "
3840 "setting to undefined"),
3841 s->symbol.name, section, mdata->nsects);
3af9a47b 3842 }
92bc0e80 3843 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3844 }
3845 break;
3846 case BFD_MACH_O_N_INDR:
0596a831
TG		 3847 /* FIXME: we don't follow the BFD convention as this indirect symbol
3848 won't be followed by the referenced one. This looks harmless
3849 unless we start using the linker. */
3850 s->symbol.flags |= BSF_INDIRECT;
3851 s->symbol.section = bfd_ind_section_ptr;
3852 s->symbol.value = 0;
3af9a47b
NC		 3853 break;
3854 default:
4eca0228 3855 _bfd_error_handler
695344c0 3856 /* xgettext:c-format */
4eca0228
AM		 3857 (_("bfd_mach_o_read_symtab_symbol: "
3858 "symbol \"%s\" specified invalid type field 0x%x: "
3859 "setting to undefined"), s->symbol.name, symtype);
92bc0e80 3860 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3861 break;
3862 }
3863 }
3864
afbb9e17 3865 return TRUE;
3af9a47b
NC		 3866}
3867
c5012cd8 3868bfd_boolean
ab273af8 3869bfd_mach_o_read_symtab_strtab (bfd *abfd)
3af9a47b 3870{
046b007d
TG		 3871 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3872 bfd_mach_o_symtab_command *sym = mdata->symtab;
3873
3874 /* Fail if there is no symtab. */
3875 if (sym == NULL)
afbb9e17 3876 return FALSE;
046b007d
TG		 3877
3878 /* Success if already loaded. */
3879 if (sym->strtab)
afbb9e17 3880 return TRUE;
3af9a47b
NC		 3881
3882 if (abfd->flags & BFD_IN_MEMORY)
3883 {
3884 struct bfd_in_memory *b;
3885
3886 b = (struct bfd_in_memory *) abfd->iostream;
3887
3888 if ((sym->stroff + sym->strsize) > b->size)
3889 {
3890 bfd_set_error (bfd_error_file_truncated);
afbb9e17 3891 return FALSE;
3af9a47b 3892 }
f075ee0c 3893 sym->strtab = (char *) b->buffer + sym->stroff;
3af9a47b 3894 }
046b007d 3895 else
3af9a47b 3896 {
8bdf0be1
NC		 3897 /* See PR 21840 for a reproducer. */
3898 if ((sym->strsize + 1) == 0)
3899 return FALSE;
e7287c7f 3900 sym->strtab = bfd_alloc (abfd, sym->strsize + 1);
046b007d 3901 if (sym->strtab == NULL)
07d6d2b8 3902 return FALSE;
046b007d
TG		 3903
3904 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
07d6d2b8
AM		 3905 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3906 {
a1165289
NC		 3907 /* PR 17512: file: 10888-1609-0.004. */
3908 bfd_release (abfd, sym->strtab);
3909 sym->strtab = NULL;
07d6d2b8
AM		 3910 bfd_set_error (bfd_error_file_truncated);
3911 return FALSE;
3912 }
e7287c7f
NC		 3913 /* Zero terminate the string table. */
3914 sym->strtab[sym->strsize] = 0;
3af9a47b
NC		 3915 }
3916
afbb9e17 3917 return TRUE;
3af9a47b
NC		 3918}
3919
c5012cd8 3920bfd_boolean
ab273af8 3921bfd_mach_o_read_symtab_symbols (bfd *abfd)
3af9a47b 3922{
046b007d
TG		 3923 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3924 bfd_mach_o_symtab_command *sym = mdata->symtab;
3af9a47b 3925 unsigned long i;
3af9a47b 3926
092d27ff 3927 if (sym == NULL || sym->symbols)
0a9d414a
NC		 3928 /* Return now if there are no symbols or if already loaded. */
3929 return TRUE;
046b007d 3930
64d29018 3931 sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol));
3af9a47b
NC		 3932 if (sym->symbols == NULL)
3933 {
4eca0228
AM		 3934 _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: "
3935 "unable to allocate memory for symbols"));
64d29018 3936 sym->nsyms = 0;
afbb9e17 3937 return FALSE;
3af9a47b 3938 }
a95a4550 3939
afbb9e17 3940 if (!bfd_mach_o_read_symtab_strtab (abfd))
64d29018 3941 goto fail;
3af9a47b
NC		 3942
3943 for (i = 0; i < sym->nsyms; i++)
64d29018
NC		 3944 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3945 goto fail;
a95a4550 3946
afbb9e17 3947 return TRUE;
64d29018
NC		 3948
3949 fail:
3950 bfd_release (abfd, sym->symbols);
3951 sym->symbols = NULL;
3952 sym->nsyms = 0;
3953 return FALSE;
3af9a47b
NC		 3954}
3955
3956static const char *
116c20d2 3957bfd_mach_o_i386_flavour_string (unsigned int flavour)
3af9a47b
NC		 3958{
3959 switch ((int) flavour)
3960 {
15e1c58a
TG		 3961 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3962 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3963 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3964 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3965 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3966 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3967 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3968 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3969 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3970 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3971 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3972 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
b32e07d7 3973 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3af9a47b
NC		 3974 default: return "UNKNOWN";
3975 }
3976}
3977
3978static const char *
116c20d2 3979bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3af9a47b
NC		 3980{
3981 switch ((int) flavour)
3982 {
b32e07d7
TG		 3983 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3984 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3985 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3986 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3987 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3988 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3af9a47b
NC		 3989 default: return "UNKNOWN";
3990 }
3991}
3992
452216ab 3993static bfd_boolean
ab273af8 3994bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 3995{
3996 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
46d1c23b 3997 struct mach_o_str_command_external raw;
3af9a47b 3998 unsigned int nameoff;
4525c51a 3999 unsigned int namelen;
3af9a47b 4000
3e6aa775
AM		 4001 if (command->len < sizeof (raw) + 8)
4002 return FALSE;
47daa70f 4003 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4004 return FALSE;
3af9a47b 4005
46d1c23b 4006 nameoff = bfd_h_get_32 (abfd, raw.str);
3e6aa775
AM		 4007 if (nameoff > command->len)
4008 return FALSE;
3af9a47b 4009
4525c51a
TG		 4010 cmd->name_offset = nameoff;
4011 namelen = command->len - nameoff;
4012 nameoff += command->offset;
4013 cmd->name_str = bfd_alloc (abfd, namelen);
b32e07d7 4014 if (cmd->name_str == NULL)
452216ab 4015 return FALSE;
4525c51a
TG		 4016 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
4017 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
452216ab
TG		 4018 return FALSE;
4019 return TRUE;
3af9a47b
NC		 4020}
4021
452216ab 4022static bfd_boolean
ab273af8 4023bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4024{
47daa70f 4025 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 4026 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
46d1c23b 4027 struct mach_o_dylib_command_external raw;
3af9a47b 4028 unsigned int nameoff;
4525c51a 4029 unsigned int namelen;
3af9a47b 4030
3e6aa775
AM		 4031 if (command->len < sizeof (raw) + 8)
4032 return FALSE;
046b007d
TG		 4033 switch (command->type)
4034 {
4035 case BFD_MACH_O_LC_LOAD_DYLIB:
fbe383b9 4036 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
046b007d 4037 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 4038 case BFD_MACH_O_LC_ID_DYLIB:
046b007d 4039 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 4040 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
046b007d
TG		 4041 break;
4042 default:
b32e07d7 4043 BFD_FAIL ();
452216ab 4044 return FALSE;
046b007d 4045 }
3af9a47b 4046
47daa70f 4047 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4048 return FALSE;
3af9a47b 4049
46d1c23b 4050 nameoff = bfd_h_get_32 (abfd, raw.name);
3e6aa775
AM		 4051 if (nameoff > command->len)
4052 return FALSE;
46d1c23b
TG		 4053 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
4054 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
4055 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3af9a47b
NC		 4056
4057 cmd->name_offset = command->offset + nameoff;
4525c51a
TG		 4058 namelen = command->len - nameoff;
4059 cmd->name_str = bfd_alloc (abfd, namelen);
b32e07d7 4060 if (cmd->name_str == NULL)
452216ab 4061 return FALSE;
47daa70f 4062 if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0
4525c51a 4063 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
452216ab
TG		 4064 return FALSE;
4065 return TRUE;
3af9a47b
NC		 4066}
4067
452216ab 4068static bfd_boolean
7a79c514 4069bfd_mach_o_read_prebound_dylib (bfd *abfd,
07d6d2b8 4070 bfd_mach_o_load_command *command)
3af9a47b 4071{
7a79c514
TG		 4072 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
4073 struct mach_o_prebound_dylib_command_external raw;
4074 unsigned int nameoff;
4075 unsigned int modoff;
4076 unsigned int str_len;
4077 unsigned char *str;
4078
3e6aa775
AM		 4079 if (command->len < sizeof (raw) + 8)
4080 return FALSE;
47daa70f 4081 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4082 return FALSE;
7a79c514
TG		 4083
4084 nameoff = bfd_h_get_32 (abfd, raw.name);
4085 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
4086 if (nameoff > command->len || modoff > command->len)
452216ab 4087 return FALSE;
7a79c514
TG		 4088
4089 str_len = command->len - sizeof (raw);
4090 str = bfd_alloc (abfd, str_len);
4091 if (str == NULL)
452216ab 4092 return FALSE;
7a79c514 4093 if (bfd_bread (str, str_len, abfd) != str_len)
452216ab 4094 return FALSE;
7a79c514
TG		 4095
4096 cmd->name_offset = command->offset + nameoff;
4097 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
4098 cmd->linked_modules_offset = command->offset + modoff;
4099
4100 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
4101 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
452216ab 4102 return TRUE;
7a79c514
TG		 4103}
4104
452216ab 4105static bfd_boolean
7a79c514
TG		 4106bfd_mach_o_read_prebind_cksum (bfd *abfd,
4107 bfd_mach_o_load_command *command)
4108{
4109 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
4110 struct mach_o_prebind_cksum_command_external raw;
3af9a47b 4111
3e6aa775
AM		 4112 if (command->len < sizeof (raw) + 8)
4113 return FALSE;
47daa70f 4114 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4115 return FALSE;
7a79c514
TG		 4116
4117 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
452216ab 4118 return TRUE;
7a79c514
TG		 4119}
4120
452216ab 4121static bfd_boolean
7a79c514
TG		 4122bfd_mach_o_read_twolevel_hints (bfd *abfd,
4123 bfd_mach_o_load_command *command)
4124{
4125 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
4126 struct mach_o_twolevel_hints_command_external raw;
4127
3e6aa775
AM		 4128 if (command->len < sizeof (raw) + 8)
4129 return FALSE;
47daa70f 4130 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4131 return FALSE;
7a79c514
TG		 4132
4133 cmd->offset = bfd_get_32 (abfd, raw.offset);
4134 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
452216ab 4135 return TRUE;
3af9a47b
NC		 4136}
4137
452216ab 4138static bfd_boolean
9f4a5bd1
TG		 4139bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
4140{
4141 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
4142 struct mach_o_fvmlib_command_external raw;
4143 unsigned int nameoff;
4525c51a 4144 unsigned int namelen;
9f4a5bd1 4145
3e6aa775
AM		 4146 if (command->len < sizeof (raw) + 8)
4147 return FALSE;
47daa70f 4148 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4149 return FALSE;
9f4a5bd1
TG		 4150
4151 nameoff = bfd_h_get_32 (abfd, raw.name);
3e6aa775
AM		 4152 if (nameoff > command->len)
4153 return FALSE;
9f4a5bd1
TG		 4154 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
4155 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
4156
4157 fvm->name_offset = command->offset + nameoff;
4525c51a
TG		 4158 namelen = command->len - nameoff;
4159 fvm->name_str = bfd_alloc (abfd, namelen);
9f4a5bd1 4160 if (fvm->name_str == NULL)
452216ab 4161 return FALSE;
9f4a5bd1 4162 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
4525c51a 4163 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
452216ab
TG		 4164 return FALSE;
4165 return TRUE;
9f4a5bd1
TG		 4166}
4167
452216ab 4168static bfd_boolean
ab273af8 4169bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4170{
b32e07d7 4171 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 4172 bfd_mach_o_thread_command *cmd = &command->command.thread;
92bc0e80 4173 unsigned int offset;
3af9a47b
NC		 4174 unsigned int nflavours;
4175 unsigned int i;
3e6aa775 4176 struct mach_o_thread_command_external raw;
3af9a47b
NC		 4177
4178 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
4179 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
4180
b32e07d7 4181 /* Count the number of threads. */
3af9a47b
NC		 4182 offset = 8;
4183 nflavours = 0;
3e6aa775 4184 while (offset + sizeof (raw) <= command->len)
3af9a47b 4185 {
3e6aa775 4186 unsigned int count;
3af9a47b 4187
c2f09c75 4188 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
07d6d2b8 4189 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4190 return FALSE;
3af9a47b 4191
3e6aa775
AM		 4192 count = bfd_h_get_32 (abfd, raw.count);
4193 if (count > (unsigned) -1 / 4
4194 || command->len - (offset + sizeof (raw)) < count * 4)
4195 return FALSE;
4196 offset += sizeof (raw) + count * 4;
3af9a47b
NC		 4197 nflavours++;
4198 }
3e6aa775
AM		 4199 if (nflavours == 0 || offset != command->len)
4200 return FALSE;
3af9a47b 4201
b32e07d7 4202 /* Allocate threads. */
3e6aa775
AM		 4203 cmd->flavours = bfd_alloc2 (abfd, nflavours,
4204 sizeof (bfd_mach_o_thread_flavour));
3af9a47b 4205 if (cmd->flavours == NULL)
452216ab 4206 return FALSE;
3af9a47b
NC		 4207 cmd->nflavours = nflavours;
4208
4209 offset = 8;
4210 nflavours = 0;
4211 while (offset != command->len)
4212 {
c2f09c75 4213 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
07d6d2b8 4214 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4215 return FALSE;
3af9a47b 4216
46d1c23b
TG		 4217 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
4218 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
4219 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
4220 offset += cmd->flavours[nflavours].size + sizeof (raw);
3af9a47b
NC		 4221 nflavours++;
4222 }
4223
4224 for (i = 0; i < nflavours; i++)
4225 {
4226 asection *bfdsec;
4227 unsigned int snamelen;
4228 char *sname;
4229 const char *flavourstr;
4230 const char *prefix = "LC_THREAD";
a95a4550
AM		 4231 unsigned int j = 0;
4232
3af9a47b
NC		 4233 switch (mdata->header.cputype)
4234 {
4235 case BFD_MACH_O_CPU_TYPE_POWERPC:
1e8a024a 4236 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
707e555b
TG		 4237 flavourstr =
4238 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3af9a47b
NC		 4239 break;
4240 case BFD_MACH_O_CPU_TYPE_I386:
1e8a024a 4241 case BFD_MACH_O_CPU_TYPE_X86_64:
707e555b
TG		 4242 flavourstr =
4243 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3af9a47b
NC		 4244 break;
4245 default:
4246 flavourstr = "UNKNOWN_ARCHITECTURE";
4247 break;
4248 }
a95a4550 4249
3af9a47b 4250 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
116c20d2 4251 sname = bfd_alloc (abfd, snamelen);
3af9a47b 4252 if (sname == NULL)
452216ab 4253 return FALSE;
3af9a47b
NC		 4254
4255 for (;;)
4256 {
a95a4550
AM		 4257 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4258 if (bfd_get_section_by_name (abfd, sname) == NULL)
3af9a47b 4259 break;
a95a4550 4260 j++;
3af9a47b
NC		 4261 }
4262
117ed4f8 4263 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
a95a4550 4264
3af9a47b
NC		 4265 bfdsec->vma = 0;
4266 bfdsec->lma = 0;
eea6121a 4267 bfdsec->size = cmd->flavours[i].size;
3af9a47b
NC		 4268 bfdsec->filepos = cmd->flavours[i].offset;
4269 bfdsec->alignment_power = 0x0;
3af9a47b
NC		 4270
4271 cmd->section = bfdsec;
4272 }
4273
452216ab 4274 return TRUE;
3af9a47b
NC		 4275}
4276
452216ab 4277static bfd_boolean
ab273af8 4278bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4279{
046b007d 4280 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
b32e07d7 4281 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 4282
4283 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4284
46d1c23b
TG		 4285 {
4286 struct mach_o_dysymtab_command_external raw;
4287
3e6aa775
AM		 4288 if (command->len < sizeof (raw) + 8)
4289 return FALSE;
47daa70f 4290 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4291 return FALSE;
3af9a47b 4292
46d1c23b
TG		 4293 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4294 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4295 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4296 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4297 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4298 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4299 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4300 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4301 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4302 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4303 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4304 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4305 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4306 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4307 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4308 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4309 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4310 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4311 }
046b007d
TG		 4312
4313 if (cmd->nmodtab != 0)
4314 {
046b007d
TG		 4315 unsigned int i;
4316 int wide = bfd_mach_o_wide_p (abfd);
4317 unsigned int module_len = wide ? 56 : 52;
4318
4319 cmd->dylib_module =
07d6d2b8 4320 bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module));
046b007d 4321 if (cmd->dylib_module == NULL)
07d6d2b8 4322 return FALSE;
046b007d
TG		 4323
4324 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
07d6d2b8 4325 return FALSE;
046b007d
TG		 4326
4327 for (i = 0; i < cmd->nmodtab; i++)
07d6d2b8
AM		 4328 {
4329 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4330 unsigned long v;
4331 unsigned char buf[56];
4332
4333 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4334 return FALSE;
4335
4336 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4337 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4338 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4339 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4340 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4341 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4342 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4343 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4344 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4345 v = bfd_h_get_32 (abfd, buf +36);
4346 module->iinit = v & 0xffff;
4347 module->iterm = (v >> 16) & 0xffff;
4348 v = bfd_h_get_32 (abfd, buf + 40);
4349 module->ninit = v & 0xffff;
4350 module->nterm = (v >> 16) & 0xffff;
4351 if (wide)
4352 {
4353 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4354 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4355 }
4356 else
4357 {
4358 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4359 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4360 }
4361 }
046b007d 4362 }
afbb9e17 4363
046b007d
TG		 4364 if (cmd->ntoc != 0)
4365 {
64d29018 4366 unsigned long i;
046b007d 4367
64d29018 4368 cmd->dylib_toc = bfd_alloc2
07d6d2b8 4369 (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content));
046b007d 4370 if (cmd->dylib_toc == NULL)
07d6d2b8 4371 return FALSE;
046b007d
TG		 4372
4373 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
07d6d2b8 4374 return FALSE;
046b007d
TG		 4375
4376 for (i = 0; i < cmd->ntoc; i++)
07d6d2b8
AM		 4377 {
4378 struct mach_o_dylib_table_of_contents_external raw;
4379 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
046b007d 4380
07d6d2b8
AM		 4381 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4382 return FALSE;
046b007d 4383
07d6d2b8
AM		 4384 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4385 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4386 }
046b007d
TG		 4387 }
4388
4389 if (cmd->nindirectsyms != 0)
4390 {
046b007d
TG		 4391 unsigned int i;
4392
64d29018 4393 cmd->indirect_syms = bfd_alloc2
07d6d2b8 4394 (abfd, cmd->nindirectsyms, sizeof (unsigned int));
046b007d 4395 if (cmd->indirect_syms == NULL)
07d6d2b8 4396 return FALSE;
046b007d
TG		 4397
4398 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
07d6d2b8 4399 return FALSE;
046b007d
TG		 4400
4401 for (i = 0; i < cmd->nindirectsyms; i++)
07d6d2b8
AM		 4402 {
4403 unsigned char raw[4];
4404 unsigned int *is = &cmd->indirect_syms[i];
046b007d 4405
07d6d2b8
AM		 4406 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4407 return FALSE;
046b007d 4408
07d6d2b8
AM		 4409 *is = bfd_h_get_32 (abfd, raw);
4410 }
046b007d
TG		 4411 }
4412
4413 if (cmd->nextrefsyms != 0)
4414 {
046b007d
TG		 4415 unsigned long v;
4416 unsigned int i;
4417
64d29018 4418 cmd->ext_refs = bfd_alloc2
07d6d2b8 4419 (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference));
046b007d 4420 if (cmd->ext_refs == NULL)
07d6d2b8 4421 return FALSE;
046b007d
TG		 4422
4423 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
07d6d2b8 4424 return FALSE;
046b007d
TG		 4425
4426 for (i = 0; i < cmd->nextrefsyms; i++)
07d6d2b8
AM		 4427 {
4428 unsigned char raw[4];
4429 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4430
4431 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4432 return FALSE;
4433
4434 /* Fields isym and flags are written as bit-fields, thus we need
4435 a specific processing for endianness. */
4436 v = bfd_h_get_32 (abfd, raw);
4437 if (bfd_big_endian (abfd))
4438 {
4439 ref->isym = (v >> 8) & 0xffffff;
4440 ref->flags = v & 0xff;
4441 }
4442 else
4443 {
4444 ref->isym = v & 0xffffff;
4445 ref->flags = (v >> 24) & 0xff;
4446 }
4447 }
046b007d 4448 }
3af9a47b 4449
b32e07d7 4450 if (mdata->dysymtab)
452216ab 4451 return FALSE;
b32e07d7
TG		 4452 mdata->dysymtab = cmd;
4453
452216ab 4454 return TRUE;
3af9a47b
NC		 4455}
4456
452216ab 4457static bfd_boolean
ab273af8 4458bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4459{
046b007d
TG		 4460 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4461 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
46d1c23b 4462 struct mach_o_symtab_command_external raw;
3af9a47b
NC		 4463
4464 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4465
3e6aa775
AM		 4466 if (command->len < sizeof (raw) + 8)
4467 return FALSE;
47daa70f 4468 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4469 return FALSE;
a95a4550 4470
46d1c23b
TG		 4471 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4472 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4473 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4474 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
046b007d
TG		 4475 symtab->symbols = NULL;
4476 symtab->strtab = NULL;
3af9a47b 4477
046b007d 4478 if (symtab->nsyms != 0)
15e1c58a
TG		 4479 abfd->flags |= HAS_SYMS;
4480
046b007d 4481 if (mdata->symtab)
452216ab 4482 return FALSE;
046b007d 4483 mdata->symtab = symtab;
452216ab 4484 return TRUE;
3af9a47b
NC		 4485}
4486
452216ab 4487static bfd_boolean
ab273af8 4488bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
15e1c58a
TG		 4489{
4490 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
15e1c58a
TG		 4491
4492 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4493
3e6aa775
AM		 4494 if (command->len < 16 + 8)
4495 return FALSE;
47daa70f 4496 if (bfd_bread (cmd->uuid, 16, abfd) != 16)
452216ab 4497 return FALSE;
15e1c58a 4498
452216ab 4499 return TRUE;
15e1c58a
TG		 4500}
4501
452216ab 4502static bfd_boolean
ab273af8 4503bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 4504{
4505 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
46d1c23b 4506 struct mach_o_linkedit_data_command_external raw;
046b007d 4507
3e6aa775
AM		 4508 if (command->len < sizeof (raw) + 8)
4509 return FALSE;
47daa70f 4510 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4511 return FALSE;
046b007d 4512
46d1c23b
TG		 4513 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4514 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
452216ab 4515 return TRUE;
046b007d
TG		 4516}
4517
452216ab 4518static bfd_boolean
ab273af8 4519bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 4520{
4521 bfd_mach_o_str_command *cmd = &command->command.str;
46d1c23b 4522 struct mach_o_str_command_external raw;
046b007d
TG		 4523 unsigned long off;
4524
3e6aa775
AM		 4525 if (command->len < sizeof (raw) + 8)
4526 return FALSE;
47daa70f 4527 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4528 return FALSE;
046b007d 4529
46d1c23b 4530 off = bfd_get_32 (abfd, raw.str);
3e6aa775
AM		 4531 if (off > command->len)
4532 return FALSE;
4533
046b007d
TG		 4534 cmd->stroff = command->offset + off;
4535 cmd->str_len = command->len - off;
4536 cmd->str = bfd_alloc (abfd, cmd->str_len);
4537 if (cmd->str == NULL)
452216ab 4538 return FALSE;
046b007d 4539 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
91d6fa6a 4540 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
452216ab
TG		 4541 return FALSE;
4542 return TRUE;
046b007d
TG		 4543}
4544
c9ffd2ea
TG		 4545static unsigned char *
4546bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4547{
4548 unsigned char *buf;
4549
4550 buf = bfd_alloc (abfd, size);
4551 if (buf == NULL)
4552 return NULL;
4553 if (bfd_seek (abfd, off, SEEK_SET) != 0
4554 || bfd_bread (buf, size, abfd) != size)
4555 return NULL;
4556 return buf;
4557}
4558
4559static bfd_boolean
4560bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4561{
4562 /* Read rebase content. */
4563 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4564 {
4565 cmd->rebase_content =
4566 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4567 if (cmd->rebase_content == NULL)
4568 return FALSE;
4569 }
4570
4571 /* Read bind content. */
4572 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4573 {
4574 cmd->bind_content =
4575 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4576 if (cmd->bind_content == NULL)
4577 return FALSE;
4578 }
4579
4580 /* Read weak bind content. */
4581 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4582 {
4583 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4584 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4585 if (cmd->weak_bind_content == NULL)
4586 return FALSE;
4587 }
4588
4589 /* Read lazy bind content. */
4590 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4591 {
4592 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4593 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4594 if (cmd->lazy_bind_content == NULL)
4595 return FALSE;
4596 }
4597
4598 /* Read export content. */
4599 if (cmd->export_content == NULL && cmd->export_size != 0)
4600 {
4601 cmd->export_content = bfd_mach_o_alloc_and_read
4602 (abfd, cmd->export_off, cmd->export_size);
4603 if (cmd->export_content == NULL)
4604 return FALSE;
4605 }
4606
4607 return TRUE;
4608}
4609
452216ab 4610static bfd_boolean
ab273af8 4611bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
ad86f1fb
TG		 4612{
4613 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
46d1c23b 4614 struct mach_o_dyld_info_command_external raw;
ad86f1fb 4615
3e6aa775
AM		 4616 if (command->len < sizeof (raw) + 8)
4617 return FALSE;
47daa70f 4618 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4619 return FALSE;
ad86f1fb 4620
46d1c23b
TG		 4621 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4622 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
c9ffd2ea 4623 cmd->rebase_content = NULL;
46d1c23b
TG		 4624 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4625 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
c9ffd2ea 4626 cmd->bind_content = NULL;
46d1c23b
TG		 4627 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4628 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
c9ffd2ea 4629 cmd->weak_bind_content = NULL;
46d1c23b
TG		 4630 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4631 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
c9ffd2ea 4632 cmd->lazy_bind_content = NULL;
46d1c23b
TG		 4633 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4634 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
c9ffd2ea 4635 cmd->export_content = NULL;
452216ab 4636 return TRUE;
ad86f1fb
TG		 4637}
4638
edbdea0e
TG		 4639static bfd_boolean
4640bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4641{
4642 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4643 struct mach_o_version_min_command_external raw;
edbdea0e 4644
3e6aa775
AM		 4645 if (command->len < sizeof (raw) + 8)
4646 return FALSE;
47daa70f 4647 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
edbdea0e
TG		 4648 return FALSE;
4649
fc7b364a
RB		 4650 cmd->version = bfd_get_32 (abfd, raw.version);
4651 cmd->sdk = bfd_get_32 (abfd, raw.sdk);
edbdea0e
TG		 4652 return TRUE;
4653}
4654
fc55a902
TG		 4655static bfd_boolean
4656bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4657{
4658 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4659 struct mach_o_encryption_info_command_external raw;
4660
3e6aa775
AM		 4661 if (command->len < sizeof (raw) + 8)
4662 return FALSE;
47daa70f
TG		 4663 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4664 return FALSE;
4665
4666 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4667 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4668 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4669 return TRUE;
4670}
4671
4672static bfd_boolean
4673bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command)
4674{
4675 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4676 struct mach_o_encryption_info_64_command_external raw;
4677
3e6aa775
AM		 4678 if (command->len < sizeof (raw) + 8)
4679 return FALSE;
47daa70f 4680 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
fc55a902
TG		 4681 return FALSE;
4682
4683 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4684 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4685 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4686 return TRUE;
4687}
4688
1778ad74
TG		 4689static bfd_boolean
4690bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4691{
4692 bfd_mach_o_main_command *cmd = &command->command.main;
4693 struct mach_o_entry_point_command_external raw;
4694
3e6aa775
AM		 4695 if (command->len < sizeof (raw) + 8)
4696 return FALSE;
47daa70f 4697 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
1778ad74
TG		 4698 return FALSE;
4699
4700 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4701 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4702 return TRUE;
4703}
4704
4705static bfd_boolean
4706bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4707{
4708 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4709 struct mach_o_source_version_command_external raw;
4710 bfd_uint64_t ver;
4711
3e6aa775
AM		 4712 if (command->len < sizeof (raw) + 8)
4713 return FALSE;
47daa70f 4714 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
1778ad74
TG		 4715 return FALSE;
4716
4717 ver = bfd_get_64 (abfd, raw.version);
4718 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4719 generates warnings) in case of the host doesn't support 64 bit
4720 integers. */
4721 cmd->e = ver & 0x3ff;
4722 ver >>= 10;
4723 cmd->d = ver & 0x3ff;
4724 ver >>= 10;
4725 cmd->c = ver & 0x3ff;
4726 ver >>= 10;
4727 cmd->b = ver & 0x3ff;
4728 ver >>= 10;
4729 cmd->a = ver & 0xffffff;
4730 return TRUE;
4731}
4732
fc7b364a
RB		 4733static bfd_boolean
4734bfd_mach_o_read_note (bfd *abfd, bfd_mach_o_load_command *command)
4735{
4736 bfd_mach_o_note_command *cmd = &command->command.note;
4737 struct mach_o_note_command_external raw;
4738
3e6aa775
AM		 4739 if (command->len < sizeof (raw) + 8)
4740 return FALSE;
fc7b364a
RB		 4741 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4742 return FALSE;
4743
4744 memcpy (cmd->data_owner, raw.data_owner, 16);
4745 cmd->offset = bfd_get_64 (abfd, raw.offset);
4746 cmd->size = bfd_get_64 (abfd, raw.size);
4747 return TRUE;
4748}
4749
4750static bfd_boolean
4751bfd_mach_o_read_build_version (bfd *abfd, bfd_mach_o_load_command *command)
4752{
4753 bfd_mach_o_build_version_command *cmd = &command->command.build_version;
4754 struct mach_o_build_version_command_external raw;
4755
3e6aa775
AM		 4756 if (command->len < sizeof (raw) + 8)
4757 return FALSE;
fc7b364a
RB		 4758 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4759 return FALSE;
4760
4761 cmd->platform = bfd_get_32 (abfd, raw.platform);
4762 cmd->minos = bfd_get_32 (abfd, raw.minos);
4763 cmd->sdk = bfd_get_32 (abfd, raw.sdk);
4764 cmd->ntools = bfd_get_32 (abfd, raw.ntools);
4765 return TRUE;
4766}
4767
452216ab 4768static bfd_boolean
ab273af8 4769bfd_mach_o_read_segment (bfd *abfd,
07d6d2b8
AM		 4770 bfd_mach_o_load_command *command,
4771 unsigned int wide)
3af9a47b 4772{
3af9a47b
NC		 4773 bfd_mach_o_segment_command *seg = &command->command.segment;
4774 unsigned long i;
a95a4550 4775
1e8a024a
TG		 4776 if (wide)
4777 {
46d1c23b
TG		 4778 struct mach_o_segment_command_64_external raw;
4779
1e8a024a 4780 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
3af9a47b 4781
3e6aa775
AM		 4782 if (command->len < sizeof (raw) + 8)
4783 return FALSE;
47daa70f 4784 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
07d6d2b8 4785 return FALSE;
3af9a47b 4786
46d1c23b 4787 memcpy (seg->segname, raw.segname, 16);
15e1c58a 4788 seg->segname[16] = '\0';
1e8a024a 4789
46d1c23b
TG		 4790 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4791 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4792 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4793 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4794 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4795 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4796 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4797 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a
TG		 4798 }
4799 else
4800 {
46d1c23b
TG		 4801 struct mach_o_segment_command_32_external raw;
4802
1e8a024a
TG		 4803 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4804
3e6aa775
AM		 4805 if (command->len < sizeof (raw) + 8)
4806 return FALSE;
47daa70f 4807 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
07d6d2b8 4808 return FALSE;
1e8a024a 4809
46d1c23b 4810 memcpy (seg->segname, raw.segname, 16);
15e1c58a 4811 seg->segname[16] = '\0';
1e8a024a 4812
46d1c23b
TG		 4813 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4814 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4815 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4816 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4817 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4818 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4819 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4820 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a 4821 }
9d4b6009
TG		 4822 seg->sect_head = NULL;
4823 seg->sect_tail = NULL;
3af9a47b 4824
f1bde64c 4825 for (i = 0; i < seg->nsects; i++)
3af9a47b 4826 {
f1bde64c 4827 asection *sec;
a95a4550 4828
47daa70f 4829 sec = bfd_mach_o_read_section (abfd, seg->initprot, wide);
f1bde64c 4830 if (sec == NULL)
07d6d2b8 4831 return FALSE;
f1bde64c 4832
c9ffd2ea
TG		 4833 bfd_mach_o_append_section_to_segment
4834 (seg, bfd_mach_o_get_mach_o_section (sec));
3af9a47b
NC		 4835 }
4836
452216ab 4837 return TRUE;
3af9a47b
NC		 4838}
4839
452216ab 4840static bfd_boolean
ab273af8 4841bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 4842{
ab273af8 4843 return bfd_mach_o_read_segment (abfd, command, 0);
1e8a024a
TG		 4844}
4845
452216ab 4846static bfd_boolean
ab273af8 4847bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 4848{
ab273af8 4849 return bfd_mach_o_read_segment (abfd, command, 1);
1e8a024a
TG		 4850}
4851
452216ab 4852static bfd_boolean
ab273af8 4853bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4854{
47daa70f 4855 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
46d1c23b
TG		 4856 struct mach_o_load_command_external raw;
4857 unsigned int cmd;
3af9a47b 4858
046b007d 4859 /* Read command type and length. */
47daa70f 4860 if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0
46d1c23b 4861 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
452216ab 4862 return FALSE;
3af9a47b 4863
46d1c23b 4864 cmd = bfd_h_get_32 (abfd, raw.cmd);
3e6aa775 4865 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
46d1c23b
TG		 4866 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4867 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
3e6aa775
AM		 4868 if (command->len < 8 || command->len % 4 != 0)
4869 return FALSE;
3af9a47b
NC		 4870
4871 switch (command->type)
4872 {
4873 case BFD_MACH_O_LC_SEGMENT:
452216ab
TG		 4874 if (!bfd_mach_o_read_segment_32 (abfd, command))
4875 return FALSE;
1e8a024a
TG		 4876 break;
4877 case BFD_MACH_O_LC_SEGMENT_64:
452216ab
TG		 4878 if (!bfd_mach_o_read_segment_64 (abfd, command))
4879 return FALSE;
3af9a47b
NC		 4880 break;
4881 case BFD_MACH_O_LC_SYMTAB:
452216ab
TG		 4882 if (!bfd_mach_o_read_symtab (abfd, command))
4883 return FALSE;
3af9a47b
NC		 4884 break;
4885 case BFD_MACH_O_LC_SYMSEG:
4886 break;
4887 case BFD_MACH_O_LC_THREAD:
4888 case BFD_MACH_O_LC_UNIXTHREAD:
452216ab
TG		 4889 if (!bfd_mach_o_read_thread (abfd, command))
4890 return FALSE;
3af9a47b
NC		 4891 break;
4892 case BFD_MACH_O_LC_LOAD_DYLINKER:
4893 case BFD_MACH_O_LC_ID_DYLINKER:
10be66a4 4894 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
452216ab
TG		 4895 if (!bfd_mach_o_read_dylinker (abfd, command))
4896 return FALSE;
3af9a47b
NC		 4897 break;
4898 case BFD_MACH_O_LC_LOAD_DYLIB:
fbe383b9 4899 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3af9a47b
NC		 4900 case BFD_MACH_O_LC_ID_DYLIB:
4901 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 4902 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 4903 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
452216ab
TG		 4904 if (!bfd_mach_o_read_dylib (abfd, command))
4905 return FALSE;
3af9a47b
NC		 4906 break;
4907 case BFD_MACH_O_LC_PREBOUND_DYLIB:
452216ab
TG		 4908 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4909 return FALSE;
3af9a47b
NC		 4910 break;
4911 case BFD_MACH_O_LC_LOADFVMLIB:
4912 case BFD_MACH_O_LC_IDFVMLIB:
452216ab
TG		 4913 if (!bfd_mach_o_read_fvmlib (abfd, command))
4914 return FALSE;
9f4a5bd1 4915 break;
3af9a47b
NC		 4916 case BFD_MACH_O_LC_IDENT:
4917 case BFD_MACH_O_LC_FVMFILE:
4918 case BFD_MACH_O_LC_PREPAGE:
4919 case BFD_MACH_O_LC_ROUTINES:
9b02d212 4920 case BFD_MACH_O_LC_ROUTINES_64:
046b007d 4921 break;
3af9a47b 4922 case BFD_MACH_O_LC_SUB_FRAMEWORK:
046b007d
TG		 4923 case BFD_MACH_O_LC_SUB_UMBRELLA:
4924 case BFD_MACH_O_LC_SUB_LIBRARY:
4925 case BFD_MACH_O_LC_SUB_CLIENT:
0c9b2b4c 4926 case BFD_MACH_O_LC_RPATH:
452216ab 4927 if (!bfd_mach_o_read_str (abfd, command))
07d6d2b8 4928 return FALSE;
3af9a47b
NC		 4929 break;
4930 case BFD_MACH_O_LC_DYSYMTAB:
452216ab
TG		 4931 if (!bfd_mach_o_read_dysymtab (abfd, command))
4932 return FALSE;
3af9a47b 4933 break;
3af9a47b 4934 case BFD_MACH_O_LC_PREBIND_CKSUM:
452216ab
TG		 4935 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4936 return FALSE;
7a79c514
TG		 4937 break;
4938 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
452216ab
TG		 4939 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4940 return FALSE;
3af9a47b 4941 break;
15e1c58a 4942 case BFD_MACH_O_LC_UUID:
452216ab
TG		 4943 if (!bfd_mach_o_read_uuid (abfd, command))
4944 return FALSE;
15e1c58a
TG		 4945 break;
4946 case BFD_MACH_O_LC_CODE_SIGNATURE:
846b9259 4947 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
edbdea0e 4948 case BFD_MACH_O_LC_FUNCTION_STARTS:
1778ad74
TG		 4949 case BFD_MACH_O_LC_DATA_IN_CODE:
4950 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
47daa70f 4951 case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT:
452216ab
TG		 4952 if (!bfd_mach_o_read_linkedit (abfd, command))
4953 return FALSE;
15e1c58a 4954 break;
fc55a902
TG		 4955 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4956 if (!bfd_mach_o_read_encryption_info (abfd, command))
452216ab 4957 return FALSE;
fc55a902 4958 break;
47daa70f
TG		 4959 case BFD_MACH_O_LC_ENCRYPTION_INFO_64:
4960 if (!bfd_mach_o_read_encryption_info_64 (abfd, command))
4961 return FALSE;
4962 break;
ad86f1fb 4963 case BFD_MACH_O_LC_DYLD_INFO:
452216ab
TG		 4964 if (!bfd_mach_o_read_dyld_info (abfd, command))
4965 return FALSE;
ad86f1fb 4966 break;
edbdea0e
TG		 4967 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4968 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
47daa70f 4969 case BFD_MACH_O_LC_VERSION_MIN_WATCHOS:
fc7b364a 4970 case BFD_MACH_O_LC_VERSION_MIN_TVOS:
edbdea0e 4971 if (!bfd_mach_o_read_version_min (abfd, command))
452216ab 4972 return FALSE;
edbdea0e 4973 break;
1778ad74
TG		 4974 case BFD_MACH_O_LC_MAIN:
4975 if (!bfd_mach_o_read_main (abfd, command))
452216ab 4976 return FALSE;
1778ad74
TG		 4977 break;
4978 case BFD_MACH_O_LC_SOURCE_VERSION:
4979 if (!bfd_mach_o_read_source_version (abfd, command))
452216ab 4980 return FALSE;
1778ad74 4981 break;
ddea148b 4982 case BFD_MACH_O_LC_LINKER_OPTIONS:
fc7b364a
RB		 4983 break;
4984 case BFD_MACH_O_LC_NOTE:
4985 if (!bfd_mach_o_read_note (abfd, command))
4b24dd1a 4986 return FALSE;
fc7b364a 4987 break;
ddea148b 4988 case BFD_MACH_O_LC_BUILD_VERSION:
fc7b364a 4989 if (!bfd_mach_o_read_build_version (abfd, command))
4b24dd1a 4990 return FALSE;
ddea148b 4991 break;
3af9a47b 4992 default:
86eafac0 4993 command->len = 0;
871b3ab2 4994 _bfd_error_handler (_("%pB: unknown load command %#x"),
d42c267e 4995 abfd, command->type);
86eafac0 4996 return FALSE;
3af9a47b
NC		 4997 }
4998
452216ab 4999 return TRUE;
3af9a47b
NC		 5000}
5001
5002static void
116c20d2 5003bfd_mach_o_flatten_sections (bfd *abfd)
3af9a47b 5004{
046b007d 5005 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea 5006 bfd_mach_o_load_command *cmd;
3af9a47b 5007 long csect = 0;
a95a4550 5008
15e1c58a 5009 /* Count total number of sections. */
3af9a47b
NC		 5010 mdata->nsects = 0;
5011
c9ffd2ea 5012 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5013 {
c9ffd2ea
TG		 5014 if (cmd->type == BFD_MACH_O_LC_SEGMENT
5015 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 5016 {
c9ffd2ea 5017 bfd_mach_o_segment_command *seg = &cmd->command.segment;
e84d6fca 5018
3af9a47b
NC		 5019 mdata->nsects += seg->nsects;
5020 }
5021 }
5022
15e1c58a 5023 /* Allocate sections array. */
64d29018
NC		 5024 mdata->sections = bfd_alloc2 (abfd,
5025 mdata->nsects, sizeof (bfd_mach_o_section *));
15e1c58a
TG		 5026
5027 /* Fill the array. */
3af9a47b
NC		 5028 csect = 0;
5029
c9ffd2ea 5030 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5031 {
c9ffd2ea
TG		 5032 if (cmd->type == BFD_MACH_O_LC_SEGMENT
5033 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 5034 {
c9ffd2ea 5035 bfd_mach_o_segment_command *seg = &cmd->command.segment;
07d6d2b8 5036 bfd_mach_o_section *sec;
3af9a47b
NC		 5037
5038 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
5039
07d6d2b8 5040 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
f1bde64c 5041 mdata->sections[csect++] = sec;
3af9a47b
NC		 5042 }
5043 }
5044}
5045
afbb9e17 5046static bfd_boolean
116c20d2 5047bfd_mach_o_scan_start_address (bfd *abfd)
3af9a47b 5048{
046b007d 5049 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea
TG		 5050 bfd_mach_o_thread_command *thr = NULL;
5051 bfd_mach_o_load_command *cmd;
3af9a47b
NC		 5052 unsigned long i;
5053
c9ffd2ea
TG		 5054 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5055 if (cmd->type == BFD_MACH_O_LC_THREAD
5056 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
afbb9e17 5057 {
07d6d2b8
AM		 5058 thr = &cmd->command.thread;
5059 break;
afbb9e17 5060 }
c9ffd2ea 5061 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
c0fd7846 5062 {
c9ffd2ea 5063 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
c0fd7846 5064 bfd_mach_o_section *text_sect = mdata->sections[0];
c9ffd2ea 5065
c0fd7846
TG		 5066 if (text_sect)
5067 {
5068 abfd->start_address = main_cmd->entryoff
5069 + (text_sect->addr - text_sect->offset);
5070 return TRUE;
5071 }
5072 }
3af9a47b 5073
5ee43bc4 5074 /* An object file has no start address, so do not fail if not found. */
c9ffd2ea 5075 if (thr == NULL)
5ee43bc4 5076 return TRUE;
3af9a47b 5077
afbb9e17 5078 /* FIXME: create a subtarget hook ? */
c9ffd2ea 5079 for (i = 0; i < thr->nflavours; i++)
3af9a47b 5080 {
a95a4550 5081 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
c9ffd2ea 5082 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
3af9a47b
NC		 5083 {
5084 unsigned char buf[4];
5085
c9ffd2ea 5086 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
07d6d2b8 5087 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 5088 return FALSE;
3af9a47b
NC		 5089
5090 abfd->start_address = bfd_h_get_32 (abfd, buf);
5091 }
a95a4550 5092 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
c9ffd2ea 5093 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
3af9a47b
NC		 5094 {
5095 unsigned char buf[4];
5096
c9ffd2ea 5097 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
07d6d2b8 5098 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 5099 return FALSE;
3af9a47b
NC		 5100
5101 abfd->start_address = bfd_h_get_32 (abfd, buf);
5102 }
1e8a024a 5103 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
07d6d2b8
AM		 5104 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
5105 {
5106 unsigned char buf[8];
1e8a024a 5107
07d6d2b8
AM		 5108 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
5109 || bfd_bread (buf, 8, abfd) != 8)
5110 return FALSE;
1e8a024a 5111
07d6d2b8
AM		 5112 abfd->start_address = bfd_h_get_64 (abfd, buf);
5113 }
1e8a024a 5114 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
07d6d2b8
AM		 5115 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
5116 {
5117 unsigned char buf[8];
1e8a024a 5118
07d6d2b8
AM		 5119 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
5120 || bfd_bread (buf, 8, abfd) != 8)
5121 return FALSE;
1e8a024a 5122
07d6d2b8
AM		 5123 abfd->start_address = bfd_h_get_64 (abfd, buf);
5124 }
3af9a47b
NC		 5125 }
5126
afbb9e17 5127 return TRUE;
3af9a47b
NC		 5128}
5129
42fa0891
TG		 5130bfd_boolean
5131bfd_mach_o_set_arch_mach (bfd *abfd,
07d6d2b8
AM		 5132 enum bfd_architecture arch,
5133 unsigned long machine)
42fa0891
TG		 5134{
5135 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5136
5137 /* If this isn't the right architecture for this backend, and this
5138 isn't the generic backend, fail. */
5139 if (arch != bed->arch
5140 && arch != bfd_arch_unknown
5141 && bed->arch != bfd_arch_unknown)
5142 return FALSE;
5143
5144 return bfd_default_set_arch_mach (abfd, arch, machine);
5145}
5146
afbb9e17 5147static bfd_boolean
116c20d2
NC		 5148bfd_mach_o_scan (bfd *abfd,
5149 bfd_mach_o_header *header,
5150 bfd_mach_o_data_struct *mdata)
3af9a47b
NC		 5151{
5152 unsigned int i;
4bb7a87e
JB		 5153 enum bfd_architecture cpu_type;
5154 unsigned long cpu_subtype;
1e8a024a
TG		 5155 unsigned int hdrsize;
5156
c2f09c75 5157 hdrsize = mach_o_wide_p (header) ?
154a1ee5 5158 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3af9a47b 5159
3af9a47b 5160 mdata->header = *header;
3af9a47b 5161
154a1ee5 5162 abfd->flags = abfd->flags & BFD_IN_MEMORY;
15e1c58a
TG		 5163 switch (header->filetype)
5164 {
5165 case BFD_MACH_O_MH_OBJECT:
5166 abfd->flags |= HAS_RELOC;
5167 break;
5168 case BFD_MACH_O_MH_EXECUTE:
5169 abfd->flags |= EXEC_P;
5170 break;
5171 case BFD_MACH_O_MH_DYLIB:
5172 case BFD_MACH_O_MH_BUNDLE:
5173 abfd->flags |= DYNAMIC;
5174 break;
5175 }
5176
3af9a47b
NC		 5177 abfd->tdata.mach_o_data = mdata;
5178
e84d6fca 5179 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4bb7a87e
JB		 5180 &cpu_type, &cpu_subtype);
5181 if (cpu_type == bfd_arch_unknown)
3af9a47b 5182 {
4eca0228 5183 _bfd_error_handler
695344c0 5184 /* xgettext:c-format */
07d6d2b8
AM		 5185 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
5186 header->cputype, header->cpusubtype);
afbb9e17 5187 return FALSE;
3af9a47b
NC		 5188 }
5189
4bb7a87e 5190 bfd_set_arch_mach (abfd, cpu_type, cpu_subtype);
a95a4550 5191
3af9a47b
NC		 5192 if (header->ncmds != 0)
5193 {
c9ffd2ea
TG		 5194 bfd_mach_o_load_command *cmd;
5195
5196 mdata->first_command = NULL;
5197 mdata->last_command = NULL;
64d29018
NC		 5198
5199 cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command));
c9ffd2ea 5200 if (cmd == NULL)
afbb9e17 5201 return FALSE;
a95a4550 5202
3af9a47b
NC		 5203 for (i = 0; i < header->ncmds; i++)
5204 {
c9ffd2ea
TG		 5205 bfd_mach_o_load_command *cur = &cmd[i];
5206
5207 bfd_mach_o_append_command (abfd, cur);
3af9a47b
NC		 5208
5209 if (i == 0)
1e8a024a 5210 cur->offset = hdrsize;
3af9a47b
NC		 5211 else
5212 {
c9ffd2ea 5213 bfd_mach_o_load_command *prev = &cmd[i - 1];
3af9a47b
NC		 5214 cur->offset = prev->offset + prev->len;
5215 }
5216
452216ab 5217 if (!bfd_mach_o_read_command (abfd, cur))
afbb9e17 5218 return FALSE;
a95a4550 5219 }
3af9a47b
NC		 5220 }
5221
c0fd7846
TG		 5222 /* Sections should be flatten before scanning start address. */
5223 bfd_mach_o_flatten_sections (abfd);
5224 if (!bfd_mach_o_scan_start_address (abfd))
afbb9e17 5225 return FALSE;
3af9a47b 5226
afbb9e17 5227 return TRUE;
3af9a47b
NC		 5228}
5229
b34976b6 5230bfd_boolean
154a1ee5 5231bfd_mach_o_mkobject_init (bfd *abfd)
3af9a47b
NC		 5232{
5233 bfd_mach_o_data_struct *mdata = NULL;
5234
b30a5d18 5235 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
3af9a47b 5236 if (mdata == NULL)
b34976b6 5237 return FALSE;
3af9a47b
NC		 5238 abfd->tdata.mach_o_data = mdata;
5239
5240 mdata->header.magic = 0;
5241 mdata->header.cputype = 0;
5242 mdata->header.cpusubtype = 0;
5243 mdata->header.filetype = 0;
5244 mdata->header.ncmds = 0;
5245 mdata->header.sizeofcmds = 0;
5246 mdata->header.flags = 0;
5247 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
c9ffd2ea
TG		 5248 mdata->first_command = NULL;
5249 mdata->last_command = NULL;
3af9a47b
NC		 5250 mdata->nsects = 0;
5251 mdata->sections = NULL;
4434114c 5252 mdata->dyn_reloc_cache = NULL;
3af9a47b 5253
b34976b6 5254 return TRUE;
3af9a47b
NC		 5255}
5256
42fa0891
TG		 5257static bfd_boolean
5258bfd_mach_o_gen_mkobject (bfd *abfd)
5259{
5260 bfd_mach_o_data_struct *mdata;
5261
5262 if (!bfd_mach_o_mkobject_init (abfd))
5263 return FALSE;
5264
5265 mdata = bfd_mach_o_get_data (abfd);
5266 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
5267 mdata->header.cputype = 0;
5268 mdata->header.cpusubtype = 0;
5269 mdata->header.byteorder = abfd->xvec->byteorder;
5270 mdata->header.version = 1;
5271
5272 return TRUE;
5273}
5274
3af9a47b 5275const bfd_target *
154a1ee5 5276bfd_mach_o_header_p (bfd *abfd,
47daa70f 5277 file_ptr hdr_off,
4bb7a87e
JB		 5278 bfd_mach_o_filetype file_type,
5279 bfd_mach_o_cpu_type cpu_type)
3af9a47b
NC		 5280{
5281 bfd_mach_o_header header;
c9ba0c87 5282 bfd_mach_o_data_struct *mdata;
3af9a47b 5283
47daa70f 5284 if (!bfd_mach_o_read_header (abfd, hdr_off, &header))
e84d6fca 5285 goto wrong;
3af9a47b 5286
e84d6fca
AM		 5287 if (! (header.byteorder == BFD_ENDIAN_BIG
5288 || header.byteorder == BFD_ENDIAN_LITTLE))
3af9a47b 5289 {
d42c267e
AM		 5290 _bfd_error_handler (_("unknown header byte-order value %#x"),
5291 header.byteorder);
e84d6fca 5292 goto wrong;
3af9a47b
NC		 5293 }
5294
e84d6fca
AM		 5295 if (! ((header.byteorder == BFD_ENDIAN_BIG
5296 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
5297 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
5298 || (header.byteorder == BFD_ENDIAN_LITTLE
5299 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
5300 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
5301 goto wrong;
3af9a47b 5302
154a1ee5
TG		 5303 /* Check cputype and filetype.
5304 In case of wildcard, do not accept magics that are handled by existing
5305 targets. */
4bb7a87e 5306 if (cpu_type)
154a1ee5 5307 {
4bb7a87e 5308 if (header.cputype != cpu_type)
07d6d2b8 5309 goto wrong;
154a1ee5 5310 }
26954155
TG		 5311 else
5312 {
5313#ifndef BFD64
5314 /* Do not recognize 64 architectures if not configured for 64bit targets.
5315 This could happen only for generic targets. */
5316 if (mach_o_wide_p (&header))
5317 goto wrong;
5318#endif
5319 }
b22161d6 5320
4bb7a87e 5321 if (file_type)
154a1ee5 5322 {
4bb7a87e 5323 if (header.filetype != file_type)
07d6d2b8 5324 goto wrong;
154a1ee5
TG		 5325 }
5326 else
5327 {
5328 switch (header.filetype)
07d6d2b8
AM		 5329 {
5330 case BFD_MACH_O_MH_CORE:
5331 /* Handled by core_p */
5332 goto wrong;
5333 default:
5334 break;
5335 }
154a1ee5
TG		 5336 }
5337
c9ba0c87
AM		 5338 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5339 if (mdata == NULL)
e84d6fca 5340 goto fail;
47daa70f 5341 mdata->hdr_offset = hdr_off;
3af9a47b 5342
c9ba0c87 5343 if (!bfd_mach_o_scan (abfd, &header, mdata))
e84d6fca 5344 goto wrong;
a95a4550 5345
3af9a47b 5346 return abfd->xvec;
e84d6fca
AM		 5347
5348 wrong:
5349 bfd_set_error (bfd_error_wrong_format);
5350
5351 fail:
e84d6fca 5352 return NULL;
3af9a47b
NC		 5353}
5354
154a1ee5
TG		 5355static const bfd_target *
5356bfd_mach_o_gen_object_p (bfd *abfd)
3af9a47b 5357{
47daa70f 5358 return bfd_mach_o_header_p (abfd, 0, 0, 0);
154a1ee5 5359}
e84d6fca 5360
154a1ee5
TG		 5361static const bfd_target *
5362bfd_mach_o_gen_core_p (bfd *abfd)
5363{
47daa70f 5364 return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0);
3af9a47b
NC		 5365}
5366
3cc27770
TG		 5367/* Return the base address of ABFD, ie the address at which the image is
5368 mapped. The possible initial pagezero is ignored. */
5369
5370bfd_vma
5371bfd_mach_o_get_base_address (bfd *abfd)
5372{
5373 bfd_mach_o_data_struct *mdata;
c9ffd2ea 5374 bfd_mach_o_load_command *cmd;
3cc27770
TG		 5375
5376 /* Check for Mach-O. */
5377 if (!bfd_mach_o_valid (abfd))
5378 return 0;
5379 mdata = bfd_mach_o_get_data (abfd);
5380
c9ffd2ea 5381 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3cc27770 5382 {
3cc27770
TG		 5383 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5384 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5385 {
5386 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5387
5388 if (segcmd->initprot != 0)
5389 return segcmd->vmaddr;
5390 }
5391 }
5392 return 0;
5393}
5394
3af9a47b
NC		 5395typedef struct mach_o_fat_archentry
5396{
5397 unsigned long cputype;
5398 unsigned long cpusubtype;
5399 unsigned long offset;
5400 unsigned long size;
5401 unsigned long align;
3af9a47b
NC		 5402} mach_o_fat_archentry;
5403
5404typedef struct mach_o_fat_data_struct
5405{
5406 unsigned long magic;
5407 unsigned long nfat_arch;
5408 mach_o_fat_archentry *archentries;
5409} mach_o_fat_data_struct;
5410
5411const bfd_target *
47daa70f 5412bfd_mach_o_fat_archive_p (bfd *abfd)
3af9a47b 5413{
e84d6fca 5414 mach_o_fat_data_struct *adata = NULL;
46d1c23b 5415 struct mach_o_fat_header_external hdr;
3af9a47b
NC		 5416 unsigned long i;
5417
c2f09c75 5418 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 5419 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
e84d6fca 5420 goto error;
3af9a47b 5421
116c20d2 5422 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
3af9a47b 5423 if (adata == NULL)
e84d6fca 5424 goto error;
a95a4550 5425
46d1c23b
TG		 5426 adata->magic = bfd_getb32 (hdr.magic);
5427 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
3af9a47b 5428 if (adata->magic != 0xcafebabe)
e84d6fca 5429 goto error;
27cc28f9
AS		 5430 /* Avoid matching Java bytecode files, which have the same magic number.
5431 In the Java bytecode file format this field contains the JVM version,
5432 which starts at 43.0. */
5433 if (adata->nfat_arch > 30)
5434 goto error;
3af9a47b 5435
c2f09c75 5436 adata->archentries =
64d29018 5437 bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry));
3af9a47b 5438 if (adata->archentries == NULL)
e84d6fca 5439 goto error;
3af9a47b
NC		 5440
5441 for (i = 0; i < adata->nfat_arch; i++)
5442 {
46d1c23b
TG		 5443 struct mach_o_fat_arch_external arch;
5444 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
e84d6fca 5445 goto error;
46d1c23b
TG		 5446 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5447 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5448 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5449 adata->archentries[i].size = bfd_getb32 (arch.size);
5450 adata->archentries[i].align = bfd_getb32 (arch.align);
3af9a47b
NC		 5451 }
5452
5453 abfd->tdata.mach_o_fat_data = adata;
64d29018 5454
3af9a47b 5455 return abfd->xvec;
e84d6fca
AM		 5456
5457 error:
5458 if (adata != NULL)
5459 bfd_release (abfd, adata);
5460 bfd_set_error (bfd_error_wrong_format);
5461 return NULL;
3af9a47b
NC		 5462}
5463
a4e241ca
TG		 5464/* Set the filename for a fat binary member ABFD, whose bfd architecture is
5465 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5466 Set arelt_data and origin fields too. */
5467
90d92a63 5468static bfd_boolean
a4e241ca 5469bfd_mach_o_fat_member_init (bfd *abfd,
07d6d2b8
AM		 5470 enum bfd_architecture arch_type,
5471 unsigned long arch_subtype,
5472 mach_o_fat_archentry *entry)
a4e241ca
TG		 5473{
5474 struct areltdata *areltdata;
5475 /* Create the member filename. Use ARCH_NAME. */
5476 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
90d92a63 5477 char *filename;
a4e241ca
TG		 5478
5479 if (ap)
5480 {
5481 /* Use the architecture name if known. */
90d92a63
AM		 5482 filename = bfd_strdup (ap->printable_name);
5483 if (filename == NULL)
5484 return FALSE;
a4e241ca
TG		 5485 }
5486 else
5487 {
5488 /* Forge a uniq id. */
5489 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
90d92a63
AM		 5490 filename = bfd_malloc (namelen);
5491 if (filename == NULL)
5492 return FALSE;
5493 snprintf (filename, namelen, "0x%lx-0x%lx",
07d6d2b8 5494 entry->cputype, entry->cpusubtype);
a4e241ca 5495 }
90d92a63 5496 bfd_set_filename (abfd, filename);
a4e241ca 5497
06e7acd7 5498 areltdata = bfd_zmalloc (sizeof (struct areltdata));
90d92a63
AM		 5499 if (areltdata == NULL)
5500 return FALSE;
a4e241ca
TG		 5501 areltdata->parsed_size = entry->size;
5502 abfd->arelt_data = areltdata;
5503 abfd->iostream = NULL;
5504 abfd->origin = entry->offset;
90d92a63 5505 return TRUE;
a4e241ca
TG		 5506}
5507
3af9a47b 5508bfd *
47daa70f 5509bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev)
3af9a47b 5510{
e84d6fca 5511 mach_o_fat_data_struct *adata;
3af9a47b
NC		 5512 mach_o_fat_archentry *entry = NULL;
5513 unsigned long i;
15e1c58a 5514 bfd *nbfd;
15e1c58a
TG		 5515 enum bfd_architecture arch_type;
5516 unsigned long arch_subtype;
3af9a47b 5517
e84d6fca 5518 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
3af9a47b
NC		 5519 BFD_ASSERT (adata != NULL);
5520
5521 /* Find index of previous entry. */
5522 if (prev == NULL)
a4e241ca
TG		 5523 {
5524 /* Start at first one. */
5525 i = 0;
5526 }
3af9a47b
NC		 5527 else
5528 {
a4e241ca 5529 /* Find index of PREV. */
3af9a47b
NC		 5530 for (i = 0; i < adata->nfat_arch; i++)
5531 {
15e1c58a 5532 if (adata->archentries[i].offset == prev->origin)
3af9a47b
NC		 5533 break;
5534 }
5535
5536 if (i == adata->nfat_arch)
5537 {
5538 /* Not found. */
5539 bfd_set_error (bfd_error_bad_value);
a95a4550 5540 return NULL;
3af9a47b 5541 }
a4e241ca
TG		 5542
5543 /* Get next entry. */
5544 i++;
5545 }
a95a4550 5546
3af9a47b
NC		 5547 if (i >= adata->nfat_arch)
5548 {
5549 bfd_set_error (bfd_error_no_more_archived_files);
5550 return NULL;
5551 }
5552
5553 entry = &adata->archentries[i];
15e1c58a
TG		 5554 nbfd = _bfd_new_bfd_contained_in (archive);
5555 if (nbfd == NULL)
5556 return NULL;
5557
15e1c58a
TG		 5558 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5559 &arch_type, &arch_subtype);
846b9259 5560
90d92a63
AM		 5561 if (!bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry))
5562 {
5563 bfd_close (nbfd);
5564 return NULL;
5565 }
a4e241ca 5566
846b9259 5567 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
3af9a47b 5568
15e1c58a 5569 return nbfd;
3af9a47b
NC		 5570}
5571
15bbba8d
TG		 5572/* Analogous to stat call. */
5573
5574static int
5575bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5576{
5577 if (abfd->arelt_data == NULL)
5578 {
5579 bfd_set_error (bfd_error_invalid_operation);
5580 return -1;
5581 }
5582
5583 buf->st_mtime = 0;
5584 buf->st_uid = 0;
5585 buf->st_gid = 0;
5586 buf->st_mode = 0644;
5587 buf->st_size = arelt_size (abfd);
5588
5589 return 0;
5590}
5591
846b9259
TG		 5592/* If ABFD format is FORMAT and architecture is ARCH, return it.
5593 If ABFD is a fat image containing a member that corresponds to FORMAT
5594 and ARCH, returns it.
5595 In other case, returns NULL.
5596 This function allows transparent uses of fat images. */
a4e241ca 5597
846b9259
TG		 5598bfd *
5599bfd_mach_o_fat_extract (bfd *abfd,
5600 bfd_format format,
5601 const bfd_arch_info_type *arch)
5602{
5603 bfd *res;
5604 mach_o_fat_data_struct *adata;
5605 unsigned int i;
5606
5607 if (bfd_check_format (abfd, format))
5608 {
5609 if (bfd_get_arch_info (abfd) == arch)
5610 return abfd;
5611 return NULL;
5612 }
5613 if (!bfd_check_format (abfd, bfd_archive)
5614 || abfd->xvec != &mach_o_fat_vec)
5615 return NULL;
c2f09c75 5616
846b9259
TG		 5617 /* This is a Mach-O fat image. */
5618 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5619 BFD_ASSERT (adata != NULL);
5620
5621 for (i = 0; i < adata->nfat_arch; i++)
5622 {
5623 struct mach_o_fat_archentry *e = &adata->archentries[i];
5624 enum bfd_architecture cpu_type;
5625 unsigned long cpu_subtype;
5626
5627 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5628 &cpu_type, &cpu_subtype);
5629 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5630 continue;
5631
5632 /* The architecture is found. */
5633 res = _bfd_new_bfd_contained_in (abfd);
5634 if (res == NULL)
5635 return NULL;
5636
90d92a63
AM		 5637 if (bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e)
5638 && bfd_check_format (res, format))
846b9259
TG		 5639 {
5640 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5641 return res;
5642 }
5643 bfd_close (res);
5644 return NULL;
5645 }
5646
5647 return NULL;
5648}
5649
eac61af6
TT		 5650static bfd_boolean
5651bfd_mach_o_fat_close_and_cleanup (bfd *abfd)
5652{
5653 _bfd_unlink_from_archive_parent (abfd);
5654 return TRUE;
5655}
5656
3af9a47b 5657int
116c20d2
NC		 5658bfd_mach_o_lookup_command (bfd *abfd,
5659 bfd_mach_o_load_command_type type,
5660 bfd_mach_o_load_command **mcommand)
3af9a47b 5661{
c9ffd2ea
TG		 5662 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5663 struct bfd_mach_o_load_command *cmd;
5664 unsigned int num;
3af9a47b 5665
c9ffd2ea 5666 BFD_ASSERT (mdata != NULL);
3af9a47b
NC		 5667 BFD_ASSERT (mcommand != NULL);
5668
5669 num = 0;
c9ffd2ea 5670 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5671 {
3af9a47b
NC		 5672 if (cmd->type != type)
5673 continue;
5674
5675 if (num == 0)
c9ffd2ea 5676 *mcommand = cmd;
3af9a47b
NC		 5677 num++;
5678 }
5679
3af9a47b
NC		 5680 return num;
5681}
5682
5683unsigned long
116c20d2 5684bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
3af9a47b
NC		 5685{
5686 switch (type)
5687 {
5688 case BFD_MACH_O_CPU_TYPE_MC680x0:
5689 return 0x04000000;
3af9a47b
NC		 5690 case BFD_MACH_O_CPU_TYPE_POWERPC:
5691 return 0xc0000000;
5692 case BFD_MACH_O_CPU_TYPE_I386:
5693 return 0xc0000000;
5694 case BFD_MACH_O_CPU_TYPE_SPARC:
5695 return 0xf0000000;
3af9a47b 5696 case BFD_MACH_O_CPU_TYPE_HPPA:
e84d6fca 5697 return 0xc0000000 - 0x04000000;
3af9a47b
NC		 5698 default:
5699 return 0;
5700 }
5701}
5702
ab76eeaf
IS		 5703/* The following two tables should be kept, as far as possible, in order of
5704 most frequently used entries to optimize their use from gas. */
5705
c5012cd8 5706const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
046b007d
TG		 5707{
5708 { "regular", BFD_MACH_O_S_REGULAR},
ab76eeaf 5709 { "coalesced", BFD_MACH_O_S_COALESCED},
046b007d
TG		 5710 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5711 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5712 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5713 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
ab76eeaf 5714 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
046b007d 5715 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
046b007d
TG		 5716 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5717 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
046b007d
TG		 5718 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5719 { "interposing", BFD_MACH_O_S_INTERPOSING},
046b007d 5720 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
ab76eeaf
IS		 5721 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5722 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
a4551119 5723 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
046b007d
TG		 5724 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5725 { NULL, 0}
5726};
5727
c5012cd8 5728const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
046b007d 5729{
ab76eeaf
IS		 5730 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5731 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
046b007d
TG		 5732 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5733 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
046b007d 5734 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
046b007d
TG		 5735 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5736 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5737 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5738 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
a4551119 5739 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
ab76eeaf 5740 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
046b007d
TG		 5741 { NULL, 0}
5742};
5743
a4551119 5744/* Get the section type from NAME. Return 256 if NAME is unknown. */
53d58d96
TG		 5745
5746unsigned int
ab76eeaf 5747bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
53d58d96 5748{
afbb9e17 5749 const bfd_mach_o_xlat_name *x;
ab76eeaf 5750 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
53d58d96
TG		 5751
5752 for (x = bfd_mach_o_section_type_name; x->name; x++)
5753 if (strcmp (x->name, name) == 0)
ab76eeaf
IS		 5754 {
5755 /* We found it... does the target support it? */
5756 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5757 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5758 return x->val; /* OK. */
5759 else
5760 break; /* Not supported. */
5761 }
a4551119
TG		 5762 /* Maximum section ID = 0xff. */
5763 return 256;
53d58d96
TG		 5764}
5765
5766/* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5767
5768unsigned int
5769bfd_mach_o_get_section_attribute_from_name (const char *name)
5770{
afbb9e17 5771 const bfd_mach_o_xlat_name *x;
53d58d96
TG		 5772
5773 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5774 if (strcmp (x->name, name) == 0)
5775 return x->val;
5776 return (unsigned int)-1;
5777}
5778
3af9a47b 5779int
116c20d2
NC		 5780bfd_mach_o_core_fetch_environment (bfd *abfd,
5781 unsigned char **rbuf,
5782 unsigned int *rlen)
3af9a47b 5783{
046b007d 5784 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 5785 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
c9ffd2ea 5786 bfd_mach_o_load_command *cmd;
3af9a47b 5787
c9ffd2ea 5788 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5789 {
c9ffd2ea 5790 bfd_mach_o_segment_command *seg;
3af9a47b 5791
c9ffd2ea 5792 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
3af9a47b
NC		 5793 continue;
5794
c9ffd2ea 5795 seg = &cmd->command.segment;
3af9a47b
NC		 5796
5797 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5798 {
5799 unsigned long start = seg->fileoff;
5800 unsigned long end = seg->fileoff + seg->filesize;
5801 unsigned char *buf = bfd_malloc (1024);
5802 unsigned long size = 1024;
5803
7a0fb7be
NC		 5804 if (buf == NULL)
5805 return -1;
3af9a47b
NC		 5806 for (;;)
5807 {
5808 bfd_size_type nread = 0;
5809 unsigned long offset;
5810 int found_nonnull = 0;
5811
5812 if (size > (end - start))
5813 size = (end - start);
5814
515ef31d
NC		 5815 buf = bfd_realloc_or_free (buf, size);
5816 if (buf == NULL)
5817 return -1;
c2f09c75
TG		 5818
5819 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
07d6d2b8
AM		 5820 {
5821 free (buf);
5822 return -1;
5823 }
c2f09c75 5824
3af9a47b 5825 nread = bfd_bread (buf, size, abfd);
a95a4550 5826
3af9a47b 5827 if (nread != size)
515ef31d
NC		 5828 {
5829 free (buf);
5830 return -1;
5831 }
a95a4550 5832
3af9a47b
NC		 5833 for (offset = 4; offset <= size; offset += 4)
5834 {
e84d6fca 5835 unsigned long val;
3af9a47b 5836
e84d6fca 5837 val = *((unsigned long *) (buf + size - offset));
3af9a47b
NC		 5838 if (! found_nonnull)
5839 {
5840 if (val != 0)
5841 found_nonnull = 1;
5842 }
5843 else if (val == 0x0)
5844 {
e84d6fca
AM		 5845 unsigned long bottom;
5846 unsigned long top;
3af9a47b 5847
e84d6fca
AM		 5848 bottom = seg->fileoff + seg->filesize - offset;
5849 top = seg->fileoff + seg->filesize - 4;
3af9a47b 5850 *rbuf = bfd_malloc (top - bottom);
7a0fb7be
NC		 5851 if (*rbuf == NULL)
5852 return -1;
3af9a47b
NC		 5853 *rlen = top - bottom;
5854
5855 memcpy (*rbuf, buf + size - *rlen, *rlen);
515ef31d 5856 free (buf);
3af9a47b
NC		 5857 return 0;
5858 }
5859 }
5860
5861 if (size == (end - start))
5862 break;
5863
5864 size *= 2;
5865 }
515ef31d
NC		 5866
5867 free (buf);
3af9a47b
NC		 5868 }
5869 }
5870
5871 return -1;
5872}
5873
5874char *
116c20d2 5875bfd_mach_o_core_file_failing_command (bfd *abfd)
3af9a47b
NC		 5876{
5877 unsigned char *buf = NULL;
5878 unsigned int len = 0;
452216ab 5879 int ret;
3af9a47b
NC		 5880
5881 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5882 if (ret < 0)
5883 return NULL;
5884
f075ee0c 5885 return (char *) buf;
3af9a47b
NC		 5886}
5887
5888int
116c20d2 5889bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
3af9a47b
NC		 5890{
5891 return 0;
5892}
5893
2ca7691a
TG		 5894static bfd_mach_o_uuid_command *
5895bfd_mach_o_lookup_uuid_command (bfd *abfd)
5896{
09fe2662 5897 bfd_mach_o_load_command *uuid_cmd = NULL;
2ca7691a 5898 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
09fe2662 5899 if (ncmd != 1 || uuid_cmd == NULL)
2ca7691a
TG		 5900 return FALSE;
5901 return &uuid_cmd->command.uuid;
5902}
5903
5904/* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5905
5906static bfd_boolean
5907bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5908{
5909 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5910
5911 BFD_ASSERT (abfd);
5912 BFD_ASSERT (uuid_cmd);
5913
5914 if (!bfd_check_format (abfd, bfd_object))
5915 return FALSE;
5916
5917 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5918 || bfd_mach_o_get_data (abfd) == NULL
5919 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5920 return FALSE;
5921
5922 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5923 if (dsym_uuid_cmd == NULL)
5924 return FALSE;
5925
5926 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
07d6d2b8 5927 sizeof (uuid_cmd->uuid)) != 0)
2ca7691a
TG		 5928 return FALSE;
5929
5930 return TRUE;
5931}
5932
5933/* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5934 The caller is responsible for closing the returned BFD object and
5935 its my_archive if the returned BFD is in a fat dSYM. */
5936
5937static bfd *
5938bfd_mach_o_find_dsym (const char *dsym_filename,
07d6d2b8
AM		 5939 const bfd_mach_o_uuid_command *uuid_cmd,
5940 const bfd_arch_info_type *arch)
2ca7691a
TG		 5941{
5942 bfd *base_dsym_bfd, *dsym_bfd;
5943
5944 BFD_ASSERT (uuid_cmd);
5945
5946 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5947 if (base_dsym_bfd == NULL)
5948 return NULL;
5949
5950 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5951 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5952 return dsym_bfd;
5953
5954 bfd_close (dsym_bfd);
5955 if (base_dsym_bfd != dsym_bfd)
5956 bfd_close (base_dsym_bfd);
5957
5958 return NULL;
5959}
5960
5961/* Return a BFD created from a dSYM file for ABFD.
5962 The caller is responsible for closing the returned BFD object, its
5963 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5964
5965static bfd *
5966bfd_mach_o_follow_dsym (bfd *abfd)
5967{
5968 char *dsym_filename;
5969 bfd_mach_o_uuid_command *uuid_cmd;
5970 bfd *dsym_bfd, *base_bfd = abfd;
5971 const char *base_basename;
5972
5973 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5974 return NULL;
5975
b0cffb47 5976 if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive))
2ca7691a
TG		 5977 base_bfd = abfd->my_archive;
5978 /* BFD may have been opened from a stream. */
5979 if (base_bfd->filename == NULL)
5980 {
5981 bfd_set_error (bfd_error_invalid_operation);
5982 return NULL;
5983 }
5984 base_basename = lbasename (base_bfd->filename);
5985
5986 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5987 if (uuid_cmd == NULL)
5988 return NULL;
5989
5990 /* TODO: We assume the DWARF file has the same as the binary's.
5991 It seems apple's GDB checks all files in the dSYM bundle directory.
5992 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5993 */
5994 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
07d6d2b8
AM		 5995 + strlen (dsym_subdir) + 1
5996 + strlen (base_basename) + 1);
7a0fb7be
NC		 5997 if (dsym_filename == NULL)
5998 return NULL;
5999
2ca7691a 6000 sprintf (dsym_filename, "%s%s/%s",
07d6d2b8 6001 base_bfd->filename, dsym_subdir, base_basename);
2ca7691a
TG		 6002
6003 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
07d6d2b8 6004 bfd_get_arch_info (abfd));
2ca7691a
TG		 6005 if (dsym_bfd == NULL)
6006 free (dsym_filename);
6007
6008 return dsym_bfd;
6009}
6010
d9071b0c
TG		 6011bfd_boolean
6012bfd_mach_o_find_nearest_line (bfd *abfd,
d9071b0c 6013 asymbol **symbols,
fb167eb2 6014 asection *section,
d9071b0c
TG		 6015 bfd_vma offset,
6016 const char **filename_ptr,
6017 const char **functionname_ptr,
fb167eb2
AM		 6018 unsigned int *line_ptr,
6019 unsigned int *discriminator_ptr)
d9071b0c
TG		 6020{
6021 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2ca7691a 6022 if (mdata == NULL)
d9071b0c 6023 return FALSE;
2ca7691a
TG		 6024 switch (mdata->header.filetype)
6025 {
6026 case BFD_MACH_O_MH_OBJECT:
6027 break;
6028 case BFD_MACH_O_MH_EXECUTE:
6029 case BFD_MACH_O_MH_DYLIB:
6030 case BFD_MACH_O_MH_BUNDLE:
6031 case BFD_MACH_O_MH_KEXT_BUNDLE:
6032 if (mdata->dwarf2_find_line_info == NULL)
07d6d2b8
AM		 6033 {
6034 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
6035 /* When we couldn't find dSYM for this binary, we look for
6036 the debug information in the binary itself. In this way,
6037 we won't try finding separated dSYM again because
6038 mdata->dwarf2_find_line_info will be filled. */
6039 if (! mdata->dsym_bfd)
6040 break;
6041 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
6042 dwarf_debug_sections, symbols,
6043 &mdata->dwarf2_find_line_info,
93ee1e36 6044 FALSE))
07d6d2b8
AM		 6045 return FALSE;
6046 }
2ca7691a
TG		 6047 break;
6048 default:
6049 return FALSE;
6050 }
fb167eb2
AM		 6051 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
6052 filename_ptr, functionname_ptr,
6053 line_ptr, discriminator_ptr,
9defd221 6054 dwarf_debug_sections,
fb167eb2 6055 &mdata->dwarf2_find_line_info);
d9071b0c
TG		 6056}
6057
6058bfd_boolean
6059bfd_mach_o_close_and_cleanup (bfd *abfd)
6060{
6061 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
6062 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
4434114c
TG		 6063 {
6064 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
6065 bfd_mach_o_free_cached_info (abfd);
2ca7691a 6066 if (mdata->dsym_bfd != NULL)
07d6d2b8
AM		 6067 {
6068 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
cf466c2a
NC		 6069#if 0
6070 /* FIXME: PR 19435: This calculation to find the memory allocated by
6071 bfd_mach_o_follow_dsym for the filename does not always end up
6072 selecting the correct pointer. Unfortunately this problem is
6073 very hard to reproduce on a non Mach-O native system, so until it
6074 can be traced and fixed on such a system, this code will remain
6075 commented out. This does mean that there will be a memory leak,
6076 but it is small, and happens when we are closing down, so it
c244074c 6077 should not matter too much. */
07d6d2b8
AM		 6078 char *dsym_filename = (char *)(fat_bfd
6079 ? fat_bfd->filename
6080 : mdata->dsym_bfd->filename);
cf466c2a 6081#endif
07d6d2b8
AM		 6082 bfd_close (mdata->dsym_bfd);
6083 mdata->dsym_bfd = NULL;
6084 if (fat_bfd)
6085 bfd_close (fat_bfd);
cf466c2a 6086#if 0
07d6d2b8 6087 free (dsym_filename);
cf466c2a 6088#endif
07d6d2b8 6089 }
4434114c 6090 }
dff55db0 6091
d9071b0c
TG		 6092 return _bfd_generic_close_and_cleanup (abfd);
6093}
6094
c6643fcc
NC		 6095bfd_boolean
6096bfd_mach_o_free_cached_info (bfd *abfd)
dff55db0
TG		 6097{
6098 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
6099 asection *asect;
6100 free (mdata->dyn_reloc_cache);
6101 mdata->dyn_reloc_cache = NULL;
6102 for (asect = abfd->sections; asect != NULL; asect = asect->next)
6103 {
6104 free (asect->relocation);
6105 asect->relocation = NULL;
6106 }
6107
6108 return TRUE;
6109}
6110
68ffbac6 6111#define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
92bc0e80
TG		 6112#define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
6113
bcb51645 6114#define bfd_mach_o_canonicalize_one_reloc NULL
92bc0e80 6115#define bfd_mach_o_swap_reloc_out NULL
b32e07d7 6116#define bfd_mach_o_print_thread NULL
a4551119 6117#define bfd_mach_o_tgt_seg_table NULL
ab76eeaf 6118#define bfd_mach_o_section_type_valid_for_tgt NULL
92bc0e80 6119
07d6d2b8
AM		 6120#define TARGET_NAME mach_o_be_vec
6121#define TARGET_STRING "mach-o-be"
42fa0891 6122#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 6123#define TARGET_PAGESIZE 1
07d6d2b8
AM		 6124#define TARGET_BIG_ENDIAN 1
6125#define TARGET_ARCHIVE 0
b93a1992 6126#define TARGET_PRIORITY 1
3af9a47b
NC		 6127#include "mach-o-target.c"
6128
6129#undef TARGET_NAME
6130#undef TARGET_STRING
42fa0891 6131#undef TARGET_ARCHITECTURE
4384b284 6132#undef TARGET_PAGESIZE
3af9a47b
NC		 6133#undef TARGET_BIG_ENDIAN
6134#undef TARGET_ARCHIVE
b93a1992 6135#undef TARGET_PRIORITY
3af9a47b 6136
07d6d2b8
AM		 6137#define TARGET_NAME mach_o_le_vec
6138#define TARGET_STRING "mach-o-le"
42fa0891 6139#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 6140#define TARGET_PAGESIZE 1
07d6d2b8
AM		 6141#define TARGET_BIG_ENDIAN 0
6142#define TARGET_ARCHIVE 0
b93a1992 6143#define TARGET_PRIORITY 1
3af9a47b
NC		 6144
6145#include "mach-o-target.c"
6146
6147#undef TARGET_NAME
6148#undef TARGET_STRING
42fa0891 6149#undef TARGET_ARCHITECTURE
4384b284 6150#undef TARGET_PAGESIZE
3af9a47b
NC		 6151#undef TARGET_BIG_ENDIAN
6152#undef TARGET_ARCHIVE
b93a1992 6153#undef TARGET_PRIORITY
3af9a47b 6154
8f95b6e4 6155/* Not yet handled: creating an archive. */
07d6d2b8 6156#define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
8f95b6e4 6157
eac61af6 6158#define bfd_mach_o_close_and_cleanup bfd_mach_o_fat_close_and_cleanup
47daa70f 6159
8f95b6e4 6160/* Not used. */
07d6d2b8 6161#define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
47daa70f
TG		 6162#define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file
6163#define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p
8f95b6e4 6164
07d6d2b8
AM		 6165#define TARGET_NAME mach_o_fat_vec
6166#define TARGET_STRING "mach-o-fat"
42fa0891 6167#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 6168#define TARGET_PAGESIZE 1
07d6d2b8
AM		 6169#define TARGET_BIG_ENDIAN 1
6170#define TARGET_ARCHIVE 1
b93a1992 6171#define TARGET_PRIORITY 0
3af9a47b
NC		 6172
6173#include "mach-o-target.c"
6174
6175#undef TARGET_NAME
6176#undef TARGET_STRING
42fa0891 6177#undef TARGET_ARCHITECTURE
4384b284 6178#undef TARGET_PAGESIZE
3af9a47b
NC		 6179#undef TARGET_BIG_ENDIAN
6180#undef TARGET_ARCHIVE
b93a1992 6181#undef TARGET_PRIORITY
GDB Binutils - Deliverables
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