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gdb: Prefer RISC-V register name "s0" over "fp"
[thirdparty/binutils-gdb.git] / bfd / mach-o.c
CommitLineData
3af9a47b 1/* Mach-O support for BFD.
219d1afa 2 Copyright (C) 1999-2018 Free Software Foundation, Inc.
3af9a47b
NC		 3
4 This file is part of BFD, the Binary File Descriptor library.
5
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
cd123cb7 8 the Free Software Foundation; either version 3 of the License, or
3af9a47b
NC		 9 (at your option) any later version.
10
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
a95a4550 17 along with this program; if not, write to the Free Software
cd123cb7
NC		 18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
3af9a47b 20
3db64b00 21#include "sysdep.h"
3af9a47b
NC		 22#include "mach-o.h"
23#include "bfd.h"
3af9a47b
NC		 24#include "libbfd.h"
25#include "libiberty.h"
15e1c58a 26#include "aout/stab_gnu.h"
46d1c23b
TG		 27#include "mach-o/reloc.h"
28#include "mach-o/external.h"
3af9a47b 29#include <ctype.h>
7f307238
IS		 30#include <stdlib.h>
31#include <string.h>
3af9a47b 32
154a1ee5
TG		 33#define bfd_mach_o_object_p bfd_mach_o_gen_object_p
34#define bfd_mach_o_core_p bfd_mach_o_gen_core_p
42fa0891 35#define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject
116c20d2 36
92bc0e80 37#define FILE_ALIGN(off, algn) \
b6518b38 38 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn)))
92bc0e80 39
c9ffd2ea
TG		 40static bfd_boolean
41bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd);
42
c2f09c75 43unsigned int
1e8a024a
TG		 44bfd_mach_o_version (bfd *abfd)
45{
46 bfd_mach_o_data_struct *mdata = NULL;
47
48 BFD_ASSERT (bfd_mach_o_valid (abfd));
046b007d 49 mdata = bfd_mach_o_get_data (abfd);
1e8a024a
TG		 50
51 return mdata->header.version;
52}
53
b34976b6 54bfd_boolean
116c20d2 55bfd_mach_o_valid (bfd *abfd)
3af9a47b
NC		 56{
57 if (abfd == NULL || abfd->xvec == NULL)
154a1ee5 58 return FALSE;
3af9a47b 59
154a1ee5
TG		 60 if (abfd->xvec->flavour != bfd_target_mach_o_flavour)
61 return FALSE;
3af9a47b 62
046b007d 63 if (bfd_mach_o_get_data (abfd) == NULL)
154a1ee5
TG		 64 return FALSE;
65 return TRUE;
66}
67
c2f09c75
TG		 68static INLINE bfd_boolean
69mach_o_wide_p (bfd_mach_o_header *header)
70{
71 switch (header->version)
72 {
73 case 1:
74 return FALSE;
75 case 2:
76 return TRUE;
77 default:
78 BFD_FAIL ();
79 return FALSE;
80 }
81}
82
83static INLINE bfd_boolean
84bfd_mach_o_wide_p (bfd *abfd)
85{
046b007d 86 return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header);
c2f09c75 87}
68ffbac6 88
154a1ee5
TG		 89/* Tables to translate well known Mach-O segment/section names to bfd
90 names. Use of canonical names (such as .text or .debug_frame) is required
91 by gdb. */
92
a4551119
TG		 93/* __TEXT Segment. */
94static const mach_o_section_name_xlat text_section_names_xlat[] =
154a1ee5 95 {
68ffbac6 96 { ".text", "__text",
a4551119
TG		 97 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
98 BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0},
99 { ".const", "__const",
100 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
101 BFD_MACH_O_S_ATTR_NONE, 0},
102 { ".static_const", "__static_const",
103 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
104 BFD_MACH_O_S_ATTR_NONE, 0},
105 { ".cstring", "__cstring",
106 SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS,
107 BFD_MACH_O_S_CSTRING_LITERALS,
108 BFD_MACH_O_S_ATTR_NONE, 0},
109 { ".literal4", "__literal4",
110 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS,
111 BFD_MACH_O_S_ATTR_NONE, 2},
112 { ".literal8", "__literal8",
113 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS,
114 BFD_MACH_O_S_ATTR_NONE, 3},
115 { ".literal16", "__literal16",
116 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS,
117 BFD_MACH_O_S_ATTR_NONE, 4},
118 { ".constructor", "__constructor",
119 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
120 BFD_MACH_O_S_ATTR_NONE, 0},
121 { ".destructor", "__destructor",
122 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
123 BFD_MACH_O_S_ATTR_NONE, 0},
124 { ".eh_frame", "__eh_frame",
632039e0 125 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED,
a4551119
TG		 126 BFD_MACH_O_S_ATTR_LIVE_SUPPORT
127 | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
632039e0 128 | BFD_MACH_O_S_ATTR_NO_TOC, 2},
a4551119 129 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 130 };
131
a4551119
TG		 132/* __DATA Segment. */
133static const mach_o_section_name_xlat data_section_names_xlat[] =
154a1ee5 134 {
a4551119
TG		 135 { ".data", "__data",
136 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
137 BFD_MACH_O_S_ATTR_NONE, 0},
138 { ".bss", "__bss",
139 SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL,
140 BFD_MACH_O_S_ATTR_NONE, 0},
141 { ".const_data", "__const",
142 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
143 BFD_MACH_O_S_ATTR_NONE, 0},
144 { ".static_data", "__static_data",
145 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
146 BFD_MACH_O_S_ATTR_NONE, 0},
147 { ".mod_init_func", "__mod_init_func",
148 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS,
149 BFD_MACH_O_S_ATTR_NONE, 2},
150 { ".mod_term_func", "__mod_term_func",
151 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS,
152 BFD_MACH_O_S_ATTR_NONE, 2},
153 { ".dyld", "__dyld",
154 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
155 BFD_MACH_O_S_ATTR_NONE, 0},
156 { ".cfstring", "__cfstring",
157 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
158 BFD_MACH_O_S_ATTR_NONE, 2},
159 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 160 };
161
a4551119
TG		 162/* __DWARF Segment. */
163static const mach_o_section_name_xlat dwarf_section_names_xlat[] =
154a1ee5 164 {
a4551119
TG		 165 { ".debug_frame", "__debug_frame",
166 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
167 BFD_MACH_O_S_ATTR_DEBUG, 0},
168 { ".debug_info", "__debug_info",
169 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
170 BFD_MACH_O_S_ATTR_DEBUG, 0},
171 { ".debug_abbrev", "__debug_abbrev",
172 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
173 BFD_MACH_O_S_ATTR_DEBUG, 0},
174 { ".debug_aranges", "__debug_aranges",
175 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
176 BFD_MACH_O_S_ATTR_DEBUG, 0},
177 { ".debug_macinfo", "__debug_macinfo",
178 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
179 BFD_MACH_O_S_ATTR_DEBUG, 0},
180 { ".debug_line", "__debug_line",
181 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
182 BFD_MACH_O_S_ATTR_DEBUG, 0},
183 { ".debug_loc", "__debug_loc",
184 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
185 BFD_MACH_O_S_ATTR_DEBUG, 0},
186 { ".debug_pubnames", "__debug_pubnames",
187 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
188 BFD_MACH_O_S_ATTR_DEBUG, 0},
189 { ".debug_pubtypes", "__debug_pubtypes",
190 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
191 BFD_MACH_O_S_ATTR_DEBUG, 0},
192 { ".debug_str", "__debug_str",
193 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
194 BFD_MACH_O_S_ATTR_DEBUG, 0},
195 { ".debug_ranges", "__debug_ranges",
196 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
197 BFD_MACH_O_S_ATTR_DEBUG, 0},
198 { ".debug_macro", "__debug_macro",
199 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
200 BFD_MACH_O_S_ATTR_DEBUG, 0},
671a6cbe
NC		 201 { ".debug_gdb_scripts", "__debug_gdb_scri",
202 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
203 BFD_MACH_O_S_ATTR_DEBUG, 0},
a4551119 204 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 205 };
206
a4551119
TG		 207/* __OBJC Segment. */
208static const mach_o_section_name_xlat objc_section_names_xlat[] =
209 {
210 { ".objc_class", "__class",
211 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
212 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
213 { ".objc_meta_class", "__meta_class",
214 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
215 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
216 { ".objc_cat_cls_meth", "__cat_cls_meth",
217 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
218 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
219 { ".objc_cat_inst_meth", "__cat_inst_meth",
220 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
221 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
222 { ".objc_protocol", "__protocol",
223 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
224 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
225 { ".objc_string_object", "__string_object",
226 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
227 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
228 { ".objc_cls_meth", "__cls_meth",
229 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
230 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
231 { ".objc_inst_meth", "__inst_meth",
232 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
233 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
234 { ".objc_cls_refs", "__cls_refs",
235 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
236 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
237 { ".objc_message_refs", "__message_refs",
238 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
239 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
240 { ".objc_symbols", "__symbols",
241 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
242 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
243 { ".objc_category", "__category",
244 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
245 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
246 { ".objc_class_vars", "__class_vars",
247 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
248 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
249 { ".objc_instance_vars", "__instance_vars",
250 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
251 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
252 { ".objc_module_info", "__module_info",
253 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
254 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
255 { ".objc_selector_strs", "__selector_strs",
256 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS,
257 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
258 { ".objc_image_info", "__image_info",
259 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
260 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
261 { ".objc_selector_fixup", "__sel_fixup",
262 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
263 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
264 /* Objc V1 */
265 { ".objc1_class_ext", "__class_ext",
266 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
267 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
268 { ".objc1_property_list", "__property",
269 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
270 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
271 { ".objc1_protocol_ext", "__protocol_ext",
272 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
273 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
274 { NULL, NULL, 0, 0, 0, 0}
275 };
5a5cbf72 276
a4551119 277static const mach_o_segment_name_xlat segsec_names_xlat[] =
154a1ee5 278 {
154a1ee5
TG		 279 { "__TEXT", text_section_names_xlat },
280 { "__DATA", data_section_names_xlat },
5a5cbf72 281 { "__DWARF", dwarf_section_names_xlat },
a4551119 282 { "__OBJC", objc_section_names_xlat },
154a1ee5
TG		 283 { NULL, NULL }
284 };
285
2ca7691a
TG		 286static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF";
287
a4551119
TG		 288/* For both cases bfd-name => mach-o name and vice versa, the specific target
289 is checked before the generic. This allows a target (e.g. ppc for cstring)
290 to override the generic definition with a more specific one. */
154a1ee5 291
a4551119
TG		 292/* Fetch the translation from a Mach-O section designation (segment, section)
293 as a bfd short name, if one exists. Otherwise return NULL.
68ffbac6 294
a4551119
TG		 295 Allow the segment and section names to be unterminated 16 byte arrays. */
296
297const mach_o_section_name_xlat *
298bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname,
299 const char *sectname)
154a1ee5
TG		 300{
301 const struct mach_o_segment_name_xlat *seg;
a4551119
TG		 302 const mach_o_section_name_xlat *sec;
303 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
154a1ee5 304
a4551119
TG		 305 /* First try any target-specific translations defined... */
306 if (bed->segsec_names_xlat)
307 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
308 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
309 for (sec = seg->sections; sec->mach_o_name; sec++)
310 if (strncmp (sec->mach_o_name, sectname,
311 BFD_MACH_O_SECTNAME_SIZE) == 0)
312 return sec;
8462aec7 313
a4551119 314 /* ... and then the Mach-O generic ones. */
154a1ee5 315 for (seg = segsec_names_xlat; seg->segname; seg++)
a4551119
TG		 316 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
317 for (sec = seg->sections; sec->mach_o_name; sec++)
07d6d2b8 318 if (strncmp (sec->mach_o_name, sectname,
a4551119 319 BFD_MACH_O_SECTNAME_SIZE) == 0)
07d6d2b8 320 return sec;
154a1ee5 321
68ffbac6 322 return NULL;
53d58d96
TG		 323}
324
a4551119 325/* If the bfd_name for this section is a 'canonical' form for which we
68ffbac6 326 know the Mach-O data, return the segment name and the data for the
a4551119 327 Mach-O equivalent. Otherwise return NULL. */
7ba695a9 328
a4551119
TG		 329const mach_o_section_name_xlat *
330bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name,
331 const char **segname)
53d58d96 332{
a4551119
TG		 333 const struct mach_o_segment_name_xlat *seg;
334 const mach_o_section_name_xlat *sec;
335 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
336 *segname = NULL;
337
338 if (bfd_name[0] != '.')
339 return NULL;
340
341 /* First try any target-specific translations defined... */
342 if (bed->segsec_names_xlat)
343 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
344 for (sec = seg->sections; sec->bfd_name; sec++)
345 if (strcmp (bfd_name, sec->bfd_name) == 0)
346 {
347 *segname = seg->segname;
348 return sec;
349 }
350
351 /* ... and then the Mach-O generic ones. */
352 for (seg = segsec_names_xlat; seg->segname; seg++)
353 for (sec = seg->sections; sec->bfd_name; sec++)
354 if (strcmp (bfd_name, sec->bfd_name) == 0)
355 {
356 *segname = seg->segname;
357 return sec;
358 }
359
68ffbac6 360 return NULL;
a4551119
TG		 361}
362
363/* Convert Mach-O section name to BFD.
364
68ffbac6 365 Try to use standard/canonical names, for which we have tables including
a4551119
TG		 366 default flag settings - which are returned. Otherwise forge a new name
367 in the form "<segmentname>.<sectionname>" this will be prefixed with
368 LC_SEGMENT. if the segment name does not begin with an underscore.
369
370 SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL-
371 terminated if the name length is exactly 16 bytes - but must be if the name
372 length is less than 16 characters). */
373
374void
375bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname,
376 const char *secname, const char **name,
377 flagword *flags)
378{
379 const mach_o_section_name_xlat *xlat;
53d58d96
TG		 380 char *res;
381 unsigned int len;
382 const char *pfx = "";
383
a4551119
TG		 384 *name = NULL;
385 *flags = SEC_NO_FLAGS;
53d58d96 386
68ffbac6 387 /* First search for a canonical name...
a4551119
TG		 388 xlat will be non-null if there is an entry for segname, secname. */
389 xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname);
390 if (xlat)
391 {
392 len = strlen (xlat->bfd_name);
64d29018 393 res = bfd_alloc (abfd, len + 1);
a4551119
TG		 394 if (res == NULL)
395 return;
396 memcpy (res, xlat->bfd_name, len+1);
397 *name = res;
398 *flags = xlat->bfd_flags;
399 return;
400 }
401
402 /* ... else we make up a bfd name from the segment concatenated with the
403 section. */
154a1ee5 404
7ba695a9 405 len = 16 + 1 + 16 + 1;
154a1ee5 406
c2f09c75
TG		 407 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
408 with an underscore. */
f1bde64c 409 if (segname[0] != '_')
c2f09c75
TG		 410 {
411 static const char seg_pfx[] = "LC_SEGMENT.";
412
413 pfx = seg_pfx;
414 len += sizeof (seg_pfx) - 1;
415 }
416
154a1ee5
TG		 417 res = bfd_alloc (abfd, len);
418 if (res == NULL)
8462aec7 419 return;
a4551119 420 snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname);
8462aec7 421 *name = res;
154a1ee5
TG		 422}
423
a4551119 424/* Convert a bfd section name to a Mach-O segment + section name.
154a1ee5 425
a4551119
TG		 426 If the name is a canonical one for which we have a Darwin match
427 return the translation table - which contains defaults for flags,
428 type, attribute and default alignment data.
429
68ffbac6 430 Otherwise, expand the bfd_name (assumed to be in the form
a4551119
TG		 431 "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
432
433static const mach_o_section_name_xlat *
154a1ee5 434bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
07d6d2b8
AM		 435 asection *sect,
436 bfd_mach_o_section *section)
154a1ee5 437{
a4551119 438 const mach_o_section_name_xlat *xlat;
154a1ee5 439 const char *name = bfd_get_section_name (abfd, sect);
a4551119 440 const char *segname;
154a1ee5
TG		 441 const char *dot;
442 unsigned int len;
443 unsigned int seglen;
444 unsigned int seclen;
445
a4551119
TG		 446 memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1);
447 memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1);
448
449 /* See if is a canonical name ... */
450 xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname);
451 if (xlat)
452 {
453 strcpy (section->segname, segname);
454 strcpy (section->sectname, xlat->mach_o_name);
455 return xlat;
456 }
154a1ee5 457
a4551119
TG		 458 /* .. else we convert our constructed one back to Mach-O.
459 Strip LC_SEGMENT. prefix, if present. */
154a1ee5
TG		 460 if (strncmp (name, "LC_SEGMENT.", 11) == 0)
461 name += 11;
462
463 /* Find a dot. */
464 dot = strchr (name, '.');
465 len = strlen (name);
466
467 /* Try to split name into segment and section names. */
468 if (dot && dot != name)
469 {
470 seglen = dot - name;
471 seclen = len - (dot + 1 - name);
472
ca148c5a
TG		 473 if (seglen <= BFD_MACH_O_SEGNAME_SIZE
474 && seclen <= BFD_MACH_O_SECTNAME_SIZE)
07d6d2b8
AM		 475 {
476 memcpy (section->segname, name, seglen);
477 section->segname[seglen] = 0;
478 memcpy (section->sectname, dot + 1, seclen);
479 section->sectname[seclen] = 0;
480 return NULL;
481 }
154a1ee5
TG		 482 }
483
a4551119
TG		 484 /* The segment and section names are both missing - don't make them
485 into dots. */
486 if (dot && dot == name)
487 return NULL;
488
489 /* Just duplicate the name into both segment and section. */
154a1ee5
TG		 490 if (len > 16)
491 len = 16;
492 memcpy (section->segname, name, len);
493 section->segname[len] = 0;
494 memcpy (section->sectname, name, len);
495 section->sectname[len] = 0;
a4551119 496 return NULL;
3af9a47b
NC		 497}
498
b2b62060
TG		 499/* Return the size of an entry for section SEC.
500 Must be called only for symbol pointer section and symbol stubs
501 sections. */
502
c5012cd8 503unsigned int
b2b62060
TG		 504bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec)
505{
506 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
507 {
508 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
509 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
510 return bfd_mach_o_wide_p (abfd) ? 8 : 4;
511 case BFD_MACH_O_S_SYMBOL_STUBS:
512 return sec->reserved2;
513 default:
514 BFD_FAIL ();
515 return 0;
516 }
517}
518
519/* Return the number of indirect symbols for a section.
520 Must be called only for symbol pointer section and symbol stubs
521 sections. */
522
c5012cd8 523unsigned int
b2b62060
TG		 524bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec)
525{
526 unsigned int elsz;
527
528 elsz = bfd_mach_o_section_get_entry_size (abfd, sec);
529 if (elsz == 0)
530 return 0;
531 else
532 return sec->size / elsz;
533}
534
c9ffd2ea
TG		 535/* Append command CMD to ABFD. Note that header.ncmds is not updated. */
536
537static void
538bfd_mach_o_append_command (bfd *abfd, bfd_mach_o_load_command *cmd)
539{
540 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
541
542 if (mdata->last_command != NULL)
543 mdata->last_command->next = cmd;
544 else
545 mdata->first_command = cmd;
546 mdata->last_command = cmd;
547 cmd->next = NULL;
548}
b2b62060 549
3af9a47b
NC		 550/* Copy any private info we understand from the input symbol
551 to the output symbol. */
552
154a1ee5 553bfd_boolean
116c20d2 554bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
b22161d6 555 asymbol *isymbol,
116c20d2 556 bfd *obfd ATTRIBUTE_UNUSED,
b22161d6
IS		 557 asymbol *osymbol)
558{
559 bfd_mach_o_asymbol *os, *is;
c9ffd2ea 560
b22161d6
IS		 561 os = (bfd_mach_o_asymbol *)osymbol;
562 is = (bfd_mach_o_asymbol *)isymbol;
563 os->n_type = is->n_type;
564 os->n_sect = is->n_sect;
565 os->n_desc = is->n_desc;
566 os->symbol.udata.i = is->symbol.udata.i;
c9ffd2ea 567
b34976b6 568 return TRUE;
3af9a47b
NC		 569}
570
571/* Copy any private info we understand from the input section
572 to the output section. */
573
154a1ee5 574bfd_boolean
c9ffd2ea
TG		 575bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection,
576 bfd *obfd, asection *osection)
a4551119 577{
c9ffd2ea
TG		 578 bfd_mach_o_section *os = bfd_mach_o_get_mach_o_section (osection);
579 bfd_mach_o_section *is = bfd_mach_o_get_mach_o_section (isection);
68ffbac6 580
c9ffd2ea
TG		 581 if (ibfd->xvec->flavour != bfd_target_mach_o_flavour
582 || obfd->xvec->flavour != bfd_target_mach_o_flavour)
583 return TRUE;
584
585 BFD_ASSERT (is != NULL && os != NULL);
586
587 os->flags = is->flags;
588 os->reserved1 = is->reserved1;
589 os->reserved2 = is->reserved2;
590 os->reserved3 = is->reserved3;
a4551119 591
b34976b6 592 return TRUE;
3af9a47b
NC		 593}
594
c6643fcc
NC		 595static const char *
596cputype (unsigned long value)
597{
598 switch (value)
599 {
600 case BFD_MACH_O_CPU_TYPE_VAX: return "VAX";
601 case BFD_MACH_O_CPU_TYPE_MC680x0: return "MC68k";
602 case BFD_MACH_O_CPU_TYPE_I386: return "I386";
603 case BFD_MACH_O_CPU_TYPE_MIPS: return "MIPS";
604 case BFD_MACH_O_CPU_TYPE_MC98000: return "MC98k";
605 case BFD_MACH_O_CPU_TYPE_HPPA: return "HPPA";
606 case BFD_MACH_O_CPU_TYPE_ARM: return "ARM";
607 case BFD_MACH_O_CPU_TYPE_MC88000: return "MC88K";
608 case BFD_MACH_O_CPU_TYPE_SPARC: return "SPARC";
609 case BFD_MACH_O_CPU_TYPE_I860: return "I860";
610 case BFD_MACH_O_CPU_TYPE_ALPHA: return "ALPHA";
611 case BFD_MACH_O_CPU_TYPE_POWERPC: return "PPC";
612 case BFD_MACH_O_CPU_TYPE_POWERPC_64: return "PPC64";
613 case BFD_MACH_O_CPU_TYPE_X86_64: return "X86_64";
614 case BFD_MACH_O_CPU_TYPE_ARM64: return "ARM64";
615 default: return _("<unknown>");
616 }
617}
618
619static const char *
620cpusubtype (unsigned long cputype, unsigned long cpusubtype)
621{
622 static char buffer[128];
623
624 buffer[0] = 0;
625 switch (cpusubtype & BFD_MACH_O_CPU_SUBTYPE_MASK)
626 {
627 case 0:
628 break;
629 case BFD_MACH_O_CPU_SUBTYPE_LIB64:
630 sprintf (buffer, " (LIB64)"); break;
631 default:
632 sprintf (buffer, _("<unknown mask flags>")); break;
633 }
634
635 cpusubtype &= ~ BFD_MACH_O_CPU_SUBTYPE_MASK;
636
637 switch (cputype)
638 {
639 case BFD_MACH_O_CPU_TYPE_X86_64:
640 case BFD_MACH_O_CPU_TYPE_I386:
641 switch (cpusubtype)
642 {
643 case BFD_MACH_O_CPU_SUBTYPE_X86_ALL:
644 return strcat (buffer, " (X86_ALL)");
645 default:
646 break;
647 }
648 break;
649
650 case BFD_MACH_O_CPU_TYPE_ARM:
651 switch (cpusubtype)
652 {
653 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
654 return strcat (buffer, " (ARM_ALL)");
655 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
656 return strcat (buffer, " (ARM_V4T)");
657 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
658 return strcat (buffer, " (ARM_V6)");
659 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
660 return strcat (buffer, " (ARM_V5TEJ)");
661 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
662 return strcat (buffer, " (ARM_XSCALE)");
663 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
664 return strcat (buffer, " (ARM_V7)");
665 default:
666 break;
667 }
668 break;
669
670 case BFD_MACH_O_CPU_TYPE_ARM64:
671 switch (cpusubtype)
672 {
673 case BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL:
674 return strcat (buffer, " (ARM64_ALL)");
675 case BFD_MACH_O_CPU_SUBTYPE_ARM64_V8:
676 return strcat (buffer, " (ARM64_V8)");
677 default:
678 break;
679 }
680 break;
681
682 default:
683 break;
684 }
685
686 if (cpusubtype != 0)
687 return strcat (buffer, _(" (<unknown>)"));
688
689 return buffer;
690}
691
692bfd_boolean
693bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, void *ptr)
694{
695 FILE * file = (FILE *) ptr;
696 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
697
698 fprintf (file, _(" MACH-O header:\n"));
699 fprintf (file, _(" magic: %#lx\n"), (long) mdata->header.magic);
700 fprintf (file, _(" cputype: %#lx (%s)\n"), (long) mdata->header.cputype,
701 cputype (mdata->header.cputype));
702 fprintf (file, _(" cpusubtype: %#lx%s\n"), (long) mdata->header.cpusubtype,
703 cpusubtype (mdata->header.cputype, mdata->header.cpusubtype));
704 fprintf (file, _(" filetype: %#lx\n"), (long) mdata->header.filetype);
705 fprintf (file, _(" ncmds: %#lx\n"), (long) mdata->header.ncmds);
706 fprintf (file, _(" sizeocmds: %#lx\n"), (long) mdata->header.sizeofcmds);
707 fprintf (file, _(" flags: %#lx\n"), (long) mdata->header.flags);
708 fprintf (file, _(" version: %x\n"), mdata->header.version);
709
710 return TRUE;
711}
712
3af9a47b
NC		 713/* Copy any private info we understand from the input bfd
714 to the output bfd. */
715
154a1ee5 716bfd_boolean
967b2c53 717bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd)
3af9a47b 718{
c9ffd2ea
TG		 719 bfd_mach_o_data_struct *imdata;
720 bfd_mach_o_data_struct *omdata;
721 bfd_mach_o_load_command *icmd;
722
154a1ee5
TG		 723 if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
724 || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
725 return TRUE;
726
3af9a47b
NC		 727 BFD_ASSERT (bfd_mach_o_valid (ibfd));
728 BFD_ASSERT (bfd_mach_o_valid (obfd));
729
c9ffd2ea
TG		 730 imdata = bfd_mach_o_get_data (ibfd);
731 omdata = bfd_mach_o_get_data (obfd);
732
733 /* Copy header flags. */
734 omdata->header.flags = imdata->header.flags;
735
c6643fcc
NC		 736 /* PR 23299. Copy the cputype. */
737 if (imdata->header.cputype != omdata->header.cputype)
738 {
739 if (omdata->header.cputype == 0)
740 omdata->header.cputype = imdata->header.cputype;
741 else if (imdata->header.cputype != 0)
742 /* Urg - what has happened ? */
743 _bfd_error_handler (_("incompatible cputypes in mach-o files: %ld vs %ld"),
744 (long) imdata->header.cputype,
745 (long) omdata->header.cputype);
746 }
747
748 /* Copy the cpusubtype. */
749 omdata->header.cpusubtype = imdata->header.cpusubtype;
750
c9ffd2ea
TG		 751 /* Copy commands. */
752 for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next)
753 {
754 bfd_mach_o_load_command *ocmd;
755
756 switch (icmd->type)
757 {
758 case BFD_MACH_O_LC_LOAD_DYLIB:
759 case BFD_MACH_O_LC_LOAD_DYLINKER:
760 case BFD_MACH_O_LC_DYLD_INFO:
761 /* Command is copied. */
762 ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command));
763 if (ocmd == NULL)
764 return FALSE;
765
766 /* Copy common fields. */
767 ocmd->type = icmd->type;
768 ocmd->type_required = icmd->type_required;
769 ocmd->offset = 0;
770 ocmd->len = icmd->len;
771 break;
772
773 default:
774 /* Command is not copied. */
775 continue;
776 break;
777 }
778
779 switch (icmd->type)
780 {
781 case BFD_MACH_O_LC_LOAD_DYLIB:
782 {
783 bfd_mach_o_dylib_command *idy = &icmd->command.dylib;
784 bfd_mach_o_dylib_command *ody = &ocmd->command.dylib;
785
786 ody->name_offset = idy->name_offset;
787 ody->timestamp = idy->timestamp;
788 ody->current_version = idy->current_version;
789 ody->compatibility_version = idy->compatibility_version;
790 ody->name_str = idy->name_str;
791 }
792 break;
793
794 case BFD_MACH_O_LC_LOAD_DYLINKER:
795 {
796 bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker;
797 bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker;
798
799 ody->name_offset = idy->name_offset;
800 ody->name_str = idy->name_str;
801 }
802 break;
803
804 case BFD_MACH_O_LC_DYLD_INFO:
805 {
806 bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info;
807 bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info;
808
809 if (bfd_mach_o_read_dyld_content (ibfd, idy))
810 {
811 ody->rebase_size = idy->rebase_size;
812 ody->rebase_content = idy->rebase_content;
813
814 ody->bind_size = idy->bind_size;
815 ody->bind_content = idy->bind_content;
816
817 ody->weak_bind_size = idy->weak_bind_size;
818 ody->weak_bind_content = idy->weak_bind_content;
819
820 ody->lazy_bind_size = idy->lazy_bind_size;
821 ody->lazy_bind_content = idy->lazy_bind_content;
822
823 ody->export_size = idy->export_size;
824 ody->export_content = idy->export_content;
825 }
86eafac0
NC		 826 /* PR 17512L: file: 730e492d. */
827 else
828 {
1b786873
L		 829 ody->rebase_size =
830 ody->bind_size =
831 ody->weak_bind_size =
832 ody->lazy_bind_size =
86eafac0 833 ody->export_size = 0;
1b786873
L		 834 ody->rebase_content =
835 ody->bind_content =
836 ody->weak_bind_content =
837 ody->lazy_bind_content =
86eafac0
NC		 838 ody->export_content = NULL;
839 }
c9ffd2ea
TG		 840 }
841 break;
842
843 default:
844 /* That command should be handled. */
845 abort ();
846 }
847
848 /* Insert command. */
849 bfd_mach_o_append_command (obfd, ocmd);
850 }
154a1ee5 851
b34976b6 852 return TRUE;
3af9a47b
NC		 853}
854
0c9ef0f0
TG		 855/* This allows us to set up to 32 bits of flags (unless we invent some
856 fiendish scheme to subdivide). For now, we'll just set the file flags
857 without error checking - just overwrite. */
68ffbac6 858
0c9ef0f0
TG		 859bfd_boolean
860bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags)
861{
862 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
863
864 if (!mdata)
865 return FALSE;
866
867 mdata->header.flags = flags;
868 return TRUE;
869}
870
046b007d 871/* Count the total number of symbols. */
154a1ee5 872
3af9a47b 873static long
116c20d2 874bfd_mach_o_count_symbols (bfd *abfd)
3af9a47b 875{
046b007d 876 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 877
046b007d
TG		 878 if (mdata->symtab == NULL)
879 return 0;
880 return mdata->symtab->nsyms;
3af9a47b
NC		 881}
882
154a1ee5 883long
116c20d2 884bfd_mach_o_get_symtab_upper_bound (bfd *abfd)
3af9a47b
NC		 885{
886 long nsyms = bfd_mach_o_count_symbols (abfd);
887
3af9a47b
NC		 888 return ((nsyms + 1) * sizeof (asymbol *));
889}
890
154a1ee5 891long
116c20d2 892bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation)
3af9a47b 893{
046b007d 894 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 895 long nsyms = bfd_mach_o_count_symbols (abfd);
046b007d
TG		 896 bfd_mach_o_symtab_command *sym = mdata->symtab;
897 unsigned long j;
3af9a47b
NC		 898
899 if (nsyms < 0)
900 return nsyms;
901
092d27ff
TG		 902 if (nsyms == 0)
903 {
904 /* Do not try to read symbols if there are none. */
905 alocation[0] = NULL;
906 return 0;
907 }
908
afbb9e17 909 if (!bfd_mach_o_read_symtab_symbols (abfd))
3af9a47b 910 {
4eca0228 911 _bfd_error_handler
07d6d2b8 912 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
046b007d
TG		 913 return 0;
914 }
3af9a47b 915
046b007d 916 BFD_ASSERT (sym->symbols != NULL);
3af9a47b 917
046b007d
TG		 918 for (j = 0; j < sym->nsyms; j++)
919 alocation[j] = &sym->symbols[j].symbol;
3af9a47b 920
046b007d 921 alocation[j] = NULL;
a95a4550 922
3af9a47b
NC		 923 return nsyms;
924}
925
aeefa1c9
TG		 926/* Create synthetic symbols for indirect symbols. */
927
b2b62060
TG		 928long
929bfd_mach_o_get_synthetic_symtab (bfd *abfd,
07d6d2b8
AM		 930 long symcount ATTRIBUTE_UNUSED,
931 asymbol **syms ATTRIBUTE_UNUSED,
932 long dynsymcount ATTRIBUTE_UNUSED,
933 asymbol **dynsyms ATTRIBUTE_UNUSED,
934 asymbol **ret)
b2b62060
TG		 935{
936 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
937 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
938 bfd_mach_o_symtab_command *symtab = mdata->symtab;
939 asymbol *s;
896ca098
NC		 940 char * s_start;
941 char * s_end;
b2b62060
TG		 942 unsigned long count, i, j, n;
943 size_t size;
944 char *names;
945 char *nul_name;
896ca098 946 const char stub [] = "$stub";
b2b62060
TG		 947
948 *ret = NULL;
949
aeefa1c9 950 /* Stop now if no symbols or no indirect symbols. */
896ca098
NC		 951 if (dysymtab == NULL || dysymtab->nindirectsyms == 0
952 || symtab == NULL || symtab->symbols == NULL)
b2b62060
TG		 953 return 0;
954
aeefa1c9
TG		 955 /* We need to allocate a bfd symbol for every indirect symbol and to
956 allocate the memory for its name. */
b2b62060
TG		 957 count = dysymtab->nindirectsyms;
958 size = count * sizeof (asymbol) + 1;
959
960 for (j = 0; j < count; j++)
961 {
896ca098 962 const char * strng;
b2b62060 963 unsigned int isym = dysymtab->indirect_syms[j];
aeefa1c9
TG		 964
965 /* Some indirect symbols are anonymous. */
896ca098
NC		 966 if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name))
967 /* PR 17512: file: f5b8eeba. */
968 size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub);
b2b62060
TG		 969 }
970
896ca098
NC		 971 s_start = bfd_malloc (size);
972 s = *ret = (asymbol *) s_start;
b2b62060
TG		 973 if (s == NULL)
974 return -1;
975 names = (char *) (s + count);
976 nul_name = names;
977 *names++ = 0;
896ca098 978 s_end = s_start + size;
68ffbac6 979
b2b62060
TG		 980 n = 0;
981 for (i = 0; i < mdata->nsects; i++)
982 {
983 bfd_mach_o_section *sec = mdata->sections[i];
91d6fa6a 984 unsigned int first, last;
b2b62060
TG		 985 bfd_vma addr;
986 bfd_vma entry_size;
68ffbac6 987
b2b62060 988 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
07d6d2b8
AM		 989 {
990 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
991 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
992 case BFD_MACH_O_S_SYMBOL_STUBS:
993 /* Only these sections have indirect symbols. */
994 first = sec->reserved1;
995 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
996 addr = sec->addr;
997 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
896ca098
NC		 998
999 /* PR 17512: file: 08e15eec. */
1000 if (first >= count || last >= count || first > last)
1001 goto fail;
1002
07d6d2b8
AM		 1003 for (j = first; j < last; j++)
1004 {
1005 unsigned int isym = dysymtab->indirect_syms[j];
b2b62060 1006
896ca098
NC		 1007 /* PR 17512: file: 04d64d9b. */
1008 if (((char *) s) + sizeof (* s) > s_end)
1009 goto fail;
1010
07d6d2b8
AM		 1011 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
1012 s->section = sec->bfdsection;
1013 s->value = addr - sec->addr;
1014 s->udata.p = NULL;
68ffbac6 1015
07d6d2b8
AM		 1016 if (isym < symtab->nsyms
1017 && symtab->symbols[isym].symbol.name)
1018 {
1019 const char *sym = symtab->symbols[isym].symbol.name;
1020 size_t len;
b2b62060 1021
07d6d2b8
AM		 1022 s->name = names;
1023 len = strlen (sym);
896ca098
NC		 1024 /* PR 17512: file: 47dfd4d2. */
1025 if (names + len >= s_end)
1026 goto fail;
07d6d2b8
AM		 1027 memcpy (names, sym, len);
1028 names += len;
896ca098
NC		 1029 /* PR 17512: file: 18f340a4. */
1030 if (names + sizeof (stub) >= s_end)
1031 goto fail;
07d6d2b8
AM		 1032 memcpy (names, stub, sizeof (stub));
1033 names += sizeof (stub);
1034 }
1035 else
1036 s->name = nul_name;
1037
1038 addr += entry_size;
1039 s++;
1040 n++;
1041 }
1042 break;
1043 default:
1044 break;
1045 }
b2b62060
TG		 1046 }
1047
1048 return n;
896ca098
NC		 1049
1050 fail:
1051 free (s_start);
1052 * ret = NULL;
1053 return -1;
b2b62060
TG		 1054}
1055
154a1ee5 1056void
116c20d2
NC		 1057bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
1058 asymbol *symbol,
1059 symbol_info *ret)
3af9a47b
NC		 1060{
1061 bfd_symbol_info (symbol, ret);
1062}
1063
154a1ee5 1064void
116c20d2 1065bfd_mach_o_print_symbol (bfd *abfd,
91d6fa6a 1066 void * afile,
116c20d2
NC		 1067 asymbol *symbol,
1068 bfd_print_symbol_type how)
3af9a47b
NC		 1069{
1070 FILE *file = (FILE *) afile;
15e1c58a 1071 const char *name;
92bc0e80 1072 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
3af9a47b
NC		 1073
1074 switch (how)
1075 {
1076 case bfd_print_symbol_name:
1077 fprintf (file, "%s", symbol->name);
1078 break;
1079 default:
91d6fa6a 1080 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
92bc0e80
TG		 1081 if (asym->n_type & BFD_MACH_O_N_STAB)
1082 name = bfd_get_stab_name (asym->n_type);
15e1c58a 1083 else
92bc0e80 1084 switch (asym->n_type & BFD_MACH_O_N_TYPE)
15e1c58a
TG		 1085 {
1086 case BFD_MACH_O_N_UNDF:
07d6d2b8
AM		 1087 if (symbol->value == 0)
1088 name = "UND";
1089 else
1090 name = "COM";
15e1c58a
TG		 1091 break;
1092 case BFD_MACH_O_N_ABS:
1093 name = "ABS";
1094 break;
1095 case BFD_MACH_O_N_INDR:
1096 name = "INDR";
1097 break;
1098 case BFD_MACH_O_N_PBUD:
1099 name = "PBUD";
1100 break;
1101 case BFD_MACH_O_N_SECT:
1102 name = "SECT";
1103 break;
1104 default:
1105 name = "???";
1106 break;
1107 }
1108 if (name == NULL)
1109 name = "";
92bc0e80 1110 fprintf (file, " %02x %-6s %02x %04x",
07d6d2b8 1111 asym->n_type, name, asym->n_sect, asym->n_desc);
92bc0e80
TG		 1112 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
1113 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
e0ce1005 1114 fprintf (file, " [%s]", symbol->section->name);
15e1c58a 1115 fprintf (file, " %s", symbol->name);
3af9a47b
NC		 1116 }
1117}
1118
1119static void
116c20d2 1120bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
0b2de107 1121 bfd_mach_o_cpu_subtype msubtype,
116c20d2
NC		 1122 enum bfd_architecture *type,
1123 unsigned long *subtype)
3af9a47b
NC		 1124{
1125 *subtype = bfd_arch_unknown;
1126
1127 switch (mtype)
1128 {
0b2de107
TG		 1129 case BFD_MACH_O_CPU_TYPE_VAX:
1130 *type = bfd_arch_vax;
1131 break;
1132 case BFD_MACH_O_CPU_TYPE_MC680x0:
1133 *type = bfd_arch_m68k;
1134 break;
1e8a024a
TG		 1135 case BFD_MACH_O_CPU_TYPE_I386:
1136 *type = bfd_arch_i386;
1137 *subtype = bfd_mach_i386_i386;
1138 break;
1139 case BFD_MACH_O_CPU_TYPE_X86_64:
1140 *type = bfd_arch_i386;
1141 *subtype = bfd_mach_x86_64;
1142 break;
0b2de107
TG		 1143 case BFD_MACH_O_CPU_TYPE_MIPS:
1144 *type = bfd_arch_mips;
1145 break;
1146 case BFD_MACH_O_CPU_TYPE_MC98000:
1147 *type = bfd_arch_m98k;
1148 break;
1149 case BFD_MACH_O_CPU_TYPE_HPPA:
1150 *type = bfd_arch_hppa;
1151 break;
1152 case BFD_MACH_O_CPU_TYPE_ARM:
1153 *type = bfd_arch_arm;
1154 switch (msubtype)
07d6d2b8
AM		 1155 {
1156 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
1157 *subtype = bfd_mach_arm_4T;
1158 break;
1159 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
1160 *subtype = bfd_mach_arm_4T; /* Best fit ? */
1161 break;
1162 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
1163 *subtype = bfd_mach_arm_5TE;
1164 break;
1165 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
1166 *subtype = bfd_mach_arm_XScale;
1167 break;
1168 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
1169 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
1170 break;
1171 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
1172 default:
1173 break;
1174 }
0b2de107 1175 break;
1e8a024a
TG		 1176 case BFD_MACH_O_CPU_TYPE_SPARC:
1177 *type = bfd_arch_sparc;
1178 *subtype = bfd_mach_sparc;
1179 break;
0b2de107
TG		 1180 case BFD_MACH_O_CPU_TYPE_ALPHA:
1181 *type = bfd_arch_alpha;
1182 break;
1e8a024a
TG		 1183 case BFD_MACH_O_CPU_TYPE_POWERPC:
1184 *type = bfd_arch_powerpc;
c2f09c75 1185 *subtype = bfd_mach_ppc;
1e8a024a
TG		 1186 break;
1187 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1188 *type = bfd_arch_powerpc;
c2f09c75 1189 *subtype = bfd_mach_ppc64;
1e8a024a 1190 break;
d8028530
TG		 1191 case BFD_MACH_O_CPU_TYPE_ARM64:
1192 *type = bfd_arch_aarch64;
1193 *subtype = bfd_mach_aarch64;
1194 break;
3af9a47b 1195 default:
1e8a024a
TG		 1196 *type = bfd_arch_unknown;
1197 break;
3af9a47b
NC		 1198 }
1199}
a95a4550 1200
c9ffd2ea
TG		 1201/* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1202 number of bytes written or -1 in case of error. */
1203
1204static int
1205bfd_mach_o_pad4 (bfd *abfd, unsigned int len)
1206{
1207 if (len % 4 != 0)
1208 {
1209 char pad[4] = {0,0,0,0};
1210 unsigned int padlen = 4 - (len % 4);
1211
1212 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1213 return -1;
1214
1215 return padlen;
1216 }
1217 else
1218 return 0;
1219}
1220
1221/* Likewise, but for a command. */
1222
1223static int
1224bfd_mach_o_pad_command (bfd *abfd, unsigned int len)
1225{
1226 unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4;
1227
1228 if (len % align != 0)
1229 {
1230 char pad[8] = {0};
1231 unsigned int padlen = align - (len % align);
1232
1233 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1234 return -1;
1235
1236 return padlen;
1237 }
1238 else
1239 return 0;
1240}
1241
154a1ee5 1242static bfd_boolean
116c20d2
NC		 1243bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
1244{
46d1c23b 1245 struct mach_o_header_external raw;
1e8a024a
TG		 1246 unsigned int size;
1247
c2f09c75 1248 size = mach_o_wide_p (header) ?
154a1ee5 1249 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
116c20d2 1250
46d1c23b
TG		 1251 bfd_h_put_32 (abfd, header->magic, raw.magic);
1252 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
1253 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
1254 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
1255 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
1256 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
1257 bfd_h_put_32 (abfd, header->flags, raw.flags);
116c20d2 1258
c2f09c75 1259 if (mach_o_wide_p (header))
46d1c23b 1260 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1e8a024a 1261
c2f09c75 1262 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 1263 || bfd_bwrite (&raw, size, abfd) != size)
154a1ee5 1264 return FALSE;
116c20d2 1265
154a1ee5 1266 return TRUE;
116c20d2
NC		 1267}
1268
452216ab 1269static bfd_boolean
ab273af8 1270bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
116c20d2
NC		 1271{
1272 bfd_mach_o_thread_command *cmd = &command->command.thread;
1273 unsigned int i;
46d1c23b 1274 struct mach_o_thread_command_external raw;
92bc0e80 1275 unsigned int offset;
116c20d2
NC		 1276
1277 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1278 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1279
c9ffd2ea 1280 offset = BFD_MACH_O_LC_SIZE;
116c20d2
NC		 1281 for (i = 0; i < cmd->nflavours; i++)
1282 {
1283 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
46d1c23b 1284 BFD_ASSERT (cmd->flavours[i].offset ==
07d6d2b8 1285 (command->offset + offset + BFD_MACH_O_LC_SIZE));
116c20d2 1286
46d1c23b
TG		 1287 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
1288 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
116c20d2 1289
c2f09c75 1290 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
07d6d2b8 1291 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1292 return FALSE;
116c20d2 1293
46d1c23b 1294 offset += cmd->flavours[i].size + sizeof (raw);
116c20d2
NC		 1295 }
1296
452216ab 1297 return TRUE;
116c20d2
NC		 1298}
1299
c9ffd2ea
TG		 1300static bfd_boolean
1301bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
1302{
1303 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1304 struct mach_o_str_command_external raw;
1305 unsigned int namelen;
1306
1307 bfd_h_put_32 (abfd, cmd->name_offset, raw.str);
1308
1309 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1310 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1311 return FALSE;
1312
1313 namelen = strlen (cmd->name_str) + 1;
1314 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1315 return FALSE;
1316
1317 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1318 return FALSE;
1319
1320 return TRUE;
1321}
1322
1323static bfd_boolean
1324bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1325{
1326 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1327 struct mach_o_dylib_command_external raw;
1328 unsigned int namelen;
1329
1330 bfd_h_put_32 (abfd, cmd->name_offset, raw.name);
1331 bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp);
1332 bfd_h_put_32 (abfd, cmd->current_version, raw.current_version);
1333 bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version);
1334
1335 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1336 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1337 return FALSE;
1338
1339 namelen = strlen (cmd->name_str) + 1;
1340 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1341 return FALSE;
1342
1343 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1344 return FALSE;
1345
1346 return TRUE;
1347}
1348
1349static bfd_boolean
1350bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
1351{
1352 bfd_mach_o_main_command *cmd = &command->command.main;
1353 struct mach_o_entry_point_command_external raw;
1354
1355 bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff);
1356 bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize);
1357
1358 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1359 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1360 return FALSE;
1361
1362 return TRUE;
1363}
1364
1365static bfd_boolean
1366bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
1367{
1368 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
1369 struct mach_o_dyld_info_command_external raw;
1370
1371 bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off);
1372 bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size);
1373 bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off);
1374 bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size);
1375 bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off);
1376 bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size);
1377 bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off);
1378 bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size);
1379 bfd_h_put_32 (abfd, cmd->export_off, raw.export_off);
1380 bfd_h_put_32 (abfd, cmd->export_size, raw.export_size);
1381
1382 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1383 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1384 return FALSE;
1385
1386 if (cmd->rebase_size != 0)
1387 if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
1388 || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
1389 cmd->rebase_size))
1390 return FALSE;
1391
1392 if (cmd->bind_size != 0)
1393 if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
1394 || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
1395 cmd->bind_size))
1396 return FALSE;
1397
1398 if (cmd->weak_bind_size != 0)
1399 if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
1400 || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
1401 cmd->weak_bind_size))
1402 return FALSE;
1403
1404 if (cmd->lazy_bind_size != 0)
1405 if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
1406 || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
1407 cmd->lazy_bind_size))
1408 return FALSE;
1409
1410 if (cmd->export_size != 0)
1411 if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
1412 || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
1413 cmd->export_size))
1414 return FALSE;
1415
1416 return TRUE;
1417}
1418
92bc0e80
TG		 1419long
1420bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
07d6d2b8 1421 asection *asect)
92bc0e80
TG		 1422{
1423 return (asect->reloc_count + 1) * sizeof (arelent *);
1424}
1425
19765f52
IS		 1426/* In addition to the need to byte-swap the symbol number, the bit positions
1427 of the fields in the relocation information vary per target endian-ness. */
1428
bcb51645 1429void
19765f52 1430bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel,
c6643fcc 1431 unsigned char *fields)
19765f52
IS		 1432{
1433 unsigned char info = fields[3];
1434
1435 if (bfd_big_endian (abfd))
1436 {
1437 rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2];
1438 rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1439 rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0;
68ffbac6 1440 rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT)
19765f52
IS		 1441 & BFD_MACH_O_LENGTH_MASK;
1442 rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0;
1443 }
1444 else
1445 {
1446 rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0];
1447 rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1448 rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0;
68ffbac6 1449 rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT)
19765f52
IS		 1450 & BFD_MACH_O_LENGTH_MASK;
1451 rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0;
1452 }
1453}
1454
bcb51645
TG		 1455/* Set syms_ptr_ptr and addend of RES. */
1456
1457bfd_boolean
1458bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd,
1459 bfd_mach_o_reloc_info *reloc,
1460 arelent *res, asymbol **syms)
92bc0e80 1461{
046b007d 1462 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bcb51645 1463 unsigned int num;
b32e07d7
TG		 1464 asymbol **sym;
1465
bcb51645
TG		 1466 /* Non-scattered relocation. */
1467 reloc->r_scattered = 0;
1468 res->addend = 0;
1469
1470 num = reloc->r_value;
1471
1472 if (reloc->r_extern)
1473 {
1474 /* PR 17512: file: 8396-1185-0.004. */
1475 if (num >= (unsigned) bfd_mach_o_count_symbols (abfd))
1476 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1477 else if (syms == NULL)
1478 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1479 else
1480 /* An external symbol number. */
1481 sym = syms + num;
1482 }
1483 else if (num == 0x00ffffff || num == 0)
1484 {
1485 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1486 is generic code, we don't know wether this is really a PAIR.
1487 This value is almost certainly not a valid section number, hence
1488 this specific case to avoid an assertion failure.
1489 Target specific swap_reloc_in routine should adjust that. */
1490 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1491 }
1492 else
1493 {
1494 /* PR 17512: file: 006-2964-0.004. */
1495 if (num > mdata->nsects)
1496 return FALSE;
1497
1498 /* A section number. */
1499 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1500 /* For a symbol defined in section S, the addend (stored in the
1501 binary) contains the address of the section. To comply with
1502 bfd convention, subtract the section address.
1503 Use the address from the header, so that the user can modify
07d6d2b8 1504 the vma of the section. */
bcb51645
TG		 1505 res->addend = -mdata->sections[num - 1]->addr;
1506 }
1507
1508 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1509 in the lower 16bits of the address value. So we have to find the
1510 'symbol' from the preceding reloc. We do this even though the
1511 section symbol is probably not needed here, because NULL symbol
1512 values cause an assert in generic BFD code. This must be done in
1513 the PPC swap_reloc_in routine. */
1514 res->sym_ptr_ptr = sym;
1515
1516 return TRUE;
1517}
1518
1519/* Do most of the work for canonicalize_relocs on RAW: create internal
1520 representation RELOC and set most fields of RES using symbol table SYMS.
1521 Each target still has to set the howto of RES and possibly adjust other
1522 fields.
1523 Previously the Mach-O hook point was simply swap_in, but some targets
1524 (like arm64) don't follow the generic rules (symnum is a value for the
1525 non-scattered relocation ADDEND). */
1526
1527bfd_boolean
1528bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd,
1529 struct mach_o_reloc_info_external *raw,
1530 bfd_mach_o_reloc_info *reloc,
1531 arelent *res, asymbol **syms)
1532{
1533 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1534 bfd_vma addr;
1535
46d1c23b 1536 addr = bfd_get_32 (abfd, raw->r_address);
19765f52
IS		 1537 res->sym_ptr_ptr = NULL;
1538 res->addend = 0;
f4716ee2 1539
b32e07d7
TG		 1540 if (addr & BFD_MACH_O_SR_SCATTERED)
1541 {
1542 unsigned int j;
19765f52 1543 bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum);
b32e07d7 1544
19765f52 1545 /* Scattered relocation, can't be extern. */
bcb51645
TG		 1546 reloc->r_scattered = 1;
1547 reloc->r_extern = 0;
19765f52
IS		 1548
1549 /* Extract section and offset from r_value (symnum). */
bcb51645 1550 reloc->r_value = symnum;
19765f52
IS		 1551 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1552 end of the data for the section (e.g. in a calculation of section
1553 data length). At present, the symbol will end up associated with
1554 the following section or, if it falls within alignment padding, as
1555 null - which will assert later. */
b32e07d7 1556 for (j = 0; j < mdata->nsects; j++)
07d6d2b8
AM		 1557 {
1558 bfd_mach_o_section *sect = mdata->sections[j];
1559 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1560 {
1561 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1562 res->addend = symnum - sect->addr;
1563 break;
1564 }
1565 }
19765f52
IS		 1566
1567 /* Extract the info and address fields from r_address. */
bcb51645
TG		 1568 reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1569 reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1570 reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL;
1571 reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr);
19765f52 1572 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
b32e07d7
TG		 1573 }
1574 else
1575 {
19765f52 1576 /* Non-scattered relocation. */
bcb51645
TG		 1577 reloc->r_scattered = 0;
1578 reloc->r_address = addr;
1579 res->address = addr;
f4716ee2 1580
19765f52 1581 /* The value and info fields have to be extracted dependent on target
07d6d2b8 1582 endian-ness. */
bcb51645 1583 bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum);
19765f52 1584
bcb51645
TG		 1585 if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc,
1586 res, syms))
1587 return FALSE;
b32e07d7 1588 }
f4716ee2
TG		 1589
1590 /* We have set up a reloc with all the information present, so the swapper
1591 can modify address, value and addend fields, if necessary, to convey
1592 information in the generic BFD reloc that is mach-o specific. */
19765f52 1593
bcb51645 1594 return TRUE;
b32e07d7
TG		 1595}
1596
1597static int
1598bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
07d6d2b8
AM		 1599 unsigned long count,
1600 arelent *res, asymbol **syms)
b32e07d7 1601{
bcb51645 1602 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
92bc0e80 1603 unsigned long i;
46d1c23b 1604 struct mach_o_reloc_info_external *native_relocs;
92bc0e80
TG		 1605 bfd_size_type native_size;
1606
92bc0e80 1607 /* Allocate and read relocs. */
b32e07d7 1608 native_size = count * BFD_MACH_O_RELENT_SIZE;
033539e2 1609
64d29018
NC		 1610 /* PR 17512: file: 09477b57. */
1611 if (native_size < count)
1612 return -1;
1613
46d1c23b
TG		 1614 native_relocs =
1615 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
92bc0e80
TG		 1616 if (native_relocs == NULL)
1617 return -1;
1618
b32e07d7 1619 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
92bc0e80 1620 || bfd_bread (native_relocs, native_size, abfd) != native_size)
b32e07d7
TG		 1621 goto err;
1622
1623 for (i = 0; i < count; i++)
92bc0e80 1624 {
bcb51645 1625 if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i],
ca4cf9b9 1626 &res[i], syms, res))
07d6d2b8 1627 goto err;
92bc0e80 1628 }
b32e07d7
TG		 1629 free (native_relocs);
1630 return i;
1631 err:
1632 free (native_relocs);
1633 return -1;
1634}
1635
1636long
1637bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
07d6d2b8 1638 arelent **rels, asymbol **syms)
b32e07d7
TG		 1639{
1640 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1641 unsigned long i;
1642 arelent *res;
1643
1644 if (asect->reloc_count == 0)
1645 return 0;
1646
1647 /* No need to go further if we don't know how to read relocs. */
bcb51645 1648 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
b32e07d7 1649 return 0;
92bc0e80 1650
dff55db0 1651 if (asect->relocation == NULL)
92bc0e80 1652 {
64d29018
NC		 1653 if (asect->reloc_count * sizeof (arelent) < asect->reloc_count)
1654 return -1;
dff55db0
TG		 1655 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1656 if (res == NULL)
07d6d2b8 1657 return -1;
dff55db0
TG		 1658
1659 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
07d6d2b8
AM		 1660 asect->reloc_count, res, syms) < 0)
1661 {
1662 free (res);
1663 return -1;
1664 }
dff55db0 1665 asect->relocation = res;
92bc0e80
TG		 1666 }
1667
dff55db0 1668 res = asect->relocation;
92bc0e80 1669 for (i = 0; i < asect->reloc_count; i++)
b32e07d7
TG		 1670 rels[i] = &res[i];
1671 rels[i] = NULL;
92bc0e80 1672
b32e07d7
TG		 1673 return i;
1674}
92bc0e80 1675
b32e07d7
TG		 1676long
1677bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1678{
1679 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
92bc0e80 1680
b32e07d7
TG		 1681 if (mdata->dysymtab == NULL)
1682 return 1;
dff55db0 1683 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
b32e07d7
TG		 1684 * sizeof (arelent *);
1685}
92bc0e80 1686
b32e07d7
TG		 1687long
1688bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
07d6d2b8 1689 struct bfd_symbol **syms)
b32e07d7
TG		 1690{
1691 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1692 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1693 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1694 unsigned long i;
1695 arelent *res;
1696
1697 if (dysymtab == NULL)
1698 return 0;
1699 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1700 return 0;
1701
1702 /* No need to go further if we don't know how to read relocs. */
bcb51645 1703 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
b32e07d7
TG		 1704 return 0;
1705
dff55db0 1706 if (mdata->dyn_reloc_cache == NULL)
b32e07d7 1707 {
64d29018
NC		 1708 if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent)
1709 < (dysymtab->nextrel + dysymtab->nlocrel))
1710 return -1;
1711
dff55db0 1712 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
07d6d2b8 1713 * sizeof (arelent));
dff55db0 1714 if (res == NULL)
07d6d2b8 1715 return -1;
b32e07d7 1716
dff55db0 1717 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
07d6d2b8
AM		 1718 dysymtab->nextrel, res, syms) < 0)
1719 {
1720 free (res);
1721 return -1;
1722 }
dff55db0
TG		 1723
1724 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
07d6d2b8
AM		 1725 dysymtab->nlocrel,
1726 res + dysymtab->nextrel, syms) < 0)
1727 {
1728 free (res);
1729 return -1;
1730 }
dff55db0
TG		 1731
1732 mdata->dyn_reloc_cache = res;
b32e07d7
TG		 1733 }
1734
dff55db0 1735 res = mdata->dyn_reloc_cache;
b32e07d7
TG		 1736 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1737 rels[i] = &res[i];
1738 rels[i] = NULL;
92bc0e80
TG		 1739 return i;
1740}
1741
19765f52
IS		 1742/* In addition to the need to byte-swap the symbol number, the bit positions
1743 of the fields in the relocation information vary per target endian-ness. */
1744
1745static void
1746bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
c6643fcc 1747 bfd_mach_o_reloc_info *rel)
19765f52
IS		 1748{
1749 unsigned char info = 0;
1750
1751 BFD_ASSERT (rel->r_type <= 15);
1752 BFD_ASSERT (rel->r_length <= 3);
1753
1754 if (bfd_big_endian (abfd))
1755 {
1756 fields[0] = (rel->r_value >> 16) & 0xff;
1757 fields[1] = (rel->r_value >> 8) & 0xff;
1758 fields[2] = rel->r_value & 0xff;
1759 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1760 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1761 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1762 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1763 }
1764 else
1765 {
1766 fields[2] = (rel->r_value >> 16) & 0xff;
1767 fields[1] = (rel->r_value >> 8) & 0xff;
1768 fields[0] = rel->r_value & 0xff;
1769 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1770 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1771 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1772 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1773 }
1774 fields[3] = info;
1775}
1776
92bc0e80 1777static bfd_boolean
ab273af8 1778bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
92bc0e80 1779{
92bc0e80
TG		 1780 unsigned int i;
1781 arelent **entries;
1782 asection *sec;
1783 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1784
1785 sec = section->bfdsection;
1786 if (sec->reloc_count == 0)
1787 return TRUE;
1788
1789 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1790 return TRUE;
1791
92bc0e80
TG		 1792 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1793 return FALSE;
1794
1795 /* Convert and write. */
1796 entries = section->bfdsection->orelocation;
1797 for (i = 0; i < section->nreloc; i++)
1798 {
1799 arelent *rel = entries[i];
46d1c23b 1800 struct mach_o_reloc_info_external raw;
92bc0e80
TG		 1801 bfd_mach_o_reloc_info info, *pinfo = &info;
1802
1803 /* Convert relocation to an intermediate representation. */
1804 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
07d6d2b8 1805 return FALSE;
92bc0e80
TG		 1806
1807 /* Lower the relocation info. */
1808 if (pinfo->r_scattered)
07d6d2b8
AM		 1809 {
1810 unsigned long v;
1811
1812 v = BFD_MACH_O_SR_SCATTERED
1813 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1814 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1815 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1816 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
1817 /* Note: scattered relocs have field in reverse order... */
1818 bfd_put_32 (abfd, v, raw.r_address);
1819 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1820 }
92bc0e80 1821 else
07d6d2b8
AM		 1822 {
1823 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1824 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
19765f52 1825 pinfo);
07d6d2b8 1826 }
92bc0e80 1827
46d1c23b 1828 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
07d6d2b8
AM		 1829 != BFD_MACH_O_RELENT_SIZE)
1830 return FALSE;
92bc0e80
TG		 1831 }
1832 return TRUE;
1833}
1834
452216ab 1835static bfd_boolean
ab273af8 1836bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1837{
46d1c23b
TG		 1838 struct mach_o_section_32_external raw;
1839
1840 memcpy (raw.sectname, section->sectname, 16);
72b5104c 1841 memcpy (raw.segname, section->segname, 16);
46d1c23b
TG		 1842 bfd_h_put_32 (abfd, section->addr, raw.addr);
1843 bfd_h_put_32 (abfd, section->size, raw.size);
1844 bfd_h_put_32 (abfd, section->offset, raw.offset);
1845 bfd_h_put_32 (abfd, section->align, raw.align);
1846 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1847 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1848 bfd_h_put_32 (abfd, section->flags, raw.flags);
1849 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1850 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1851
1852 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
92bc0e80 1853 != BFD_MACH_O_SECTION_SIZE)
452216ab 1854 return FALSE;
116c20d2 1855
452216ab 1856 return TRUE;
116c20d2
NC		 1857}
1858
452216ab 1859static bfd_boolean
ab273af8 1860bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1861{
46d1c23b
TG		 1862 struct mach_o_section_64_external raw;
1863
1864 memcpy (raw.sectname, section->sectname, 16);
1865 memcpy (raw.segname, section->segname, 16);
1866 bfd_h_put_64 (abfd, section->addr, raw.addr);
1867 bfd_h_put_64 (abfd, section->size, raw.size);
1868 bfd_h_put_32 (abfd, section->offset, raw.offset);
1869 bfd_h_put_32 (abfd, section->align, raw.align);
1870 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1871 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1872 bfd_h_put_32 (abfd, section->flags, raw.flags);
1873 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1874 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1875 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1876
1877 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
92bc0e80 1878 != BFD_MACH_O_SECTION_64_SIZE)
452216ab 1879 return FALSE;
116c20d2 1880
452216ab 1881 return TRUE;
1e8a024a
TG		 1882}
1883
452216ab 1884static bfd_boolean
ab273af8 1885bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1886{
46d1c23b 1887 struct mach_o_segment_command_32_external raw;
1e8a024a 1888 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1889 bfd_mach_o_section *sec;
1e8a024a 1890
c2f09c75
TG		 1891 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1892
f1bde64c
TG		 1893 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1894 if (!bfd_mach_o_write_relocs (abfd, sec))
452216ab 1895 return FALSE;
c2f09c75 1896
46d1c23b
TG		 1897 memcpy (raw.segname, seg->segname, 16);
1898 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1899 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1900 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1901 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1902 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1903 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1904 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1905 bfd_h_put_32 (abfd, seg->flags, raw.flags);
68ffbac6 1906
46d1c23b
TG		 1907 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1908 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1909 return FALSE;
1e8a024a 1910
f1bde64c 1911 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
452216ab
TG		 1912 if (!bfd_mach_o_write_section_32 (abfd, sec))
1913 return FALSE;
1e8a024a 1914
452216ab 1915 return TRUE;
116c20d2
NC		 1916}
1917
452216ab 1918static bfd_boolean
ab273af8 1919bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1920{
46d1c23b 1921 struct mach_o_segment_command_64_external raw;
c2f09c75 1922 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1923 bfd_mach_o_section *sec;
c2f09c75
TG		 1924
1925 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1926
f1bde64c
TG		 1927 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1928 if (!bfd_mach_o_write_relocs (abfd, sec))
452216ab 1929 return FALSE;
c2f09c75 1930
46d1c23b
TG		 1931 memcpy (raw.segname, seg->segname, 16);
1932 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1933 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1934 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1935 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1936 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1937 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1938 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1939 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1940
1941 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1942 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 1943 return FALSE;
c2f09c75 1944
f1bde64c 1945 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
452216ab
TG		 1946 if (!bfd_mach_o_write_section_64 (abfd, sec))
1947 return FALSE;
c2f09c75 1948
452216ab 1949 return TRUE;
1e8a024a
TG		 1950}
1951
c2f09c75 1952static bfd_boolean
c9ffd2ea 1953bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
116c20d2 1954{
046b007d 1955 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
116c20d2 1956 unsigned long i;
c2f09c75 1957 unsigned int wide = bfd_mach_o_wide_p (abfd);
c2f09c75
TG		 1958 struct bfd_strtab_hash *strtab;
1959 asymbol **symbols = bfd_get_outsymbols (abfd);
c9ffd2ea 1960 int padlen;
c2f09c75
TG		 1961
1962 /* Write the symbols first. */
1963 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1964 return FALSE;
1965
c2f09c75
TG		 1966 strtab = _bfd_stringtab_init ();
1967 if (strtab == NULL)
1968 return FALSE;
116c20d2 1969
a4551119
TG		 1970 if (sym->nsyms > 0)
1971 /* Although we don't strictly need to do this, for compatibility with
1972 Darwin system tools, actually output an empty string for the index
1973 0 entry. */
1974 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1975
116c20d2
NC		 1976 for (i = 0; i < sym->nsyms; i++)
1977 {
91d6fa6a 1978 bfd_size_type str_index;
92bc0e80 1979 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
68ffbac6 1980
92bc0e80 1981 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
7f307238 1982 /* An index of 0 always means the empty string. */
07d6d2b8 1983 str_index = 0;
c2f09c75 1984 else
07d6d2b8
AM		 1985 {
1986 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
7f307238 1987
07d6d2b8
AM		 1988 if (str_index == (bfd_size_type) -1)
1989 goto err;
1990 }
46d1c23b 1991
c2f09c75 1992 if (wide)
07d6d2b8
AM		 1993 {
1994 struct mach_o_nlist_64_external raw;
1995
1996 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1997 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1998 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1999 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
2000 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
2001 raw.n_value);
2002
2003 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2004 goto err;
2005 }
c2f09c75 2006 else
07d6d2b8
AM		 2007 {
2008 struct mach_o_nlist_external raw;
116c20d2 2009
07d6d2b8
AM		 2010 bfd_h_put_32 (abfd, str_index, raw.n_strx);
2011 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
2012 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
2013 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
2014 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
2015 raw.n_value);
46d1c23b 2016
07d6d2b8
AM		 2017 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2018 goto err;
2019 }
116c20d2 2020 }
c2f09c75 2021 sym->strsize = _bfd_stringtab_size (strtab);
92bc0e80
TG		 2022 sym->stroff = mdata->filelen;
2023 mdata->filelen += sym->strsize;
116c20d2 2024
c9ffd2ea 2025 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
64d29018 2026 goto err;
c9ffd2ea 2027
535b785f 2028 if (!_bfd_stringtab_emit (abfd, strtab))
c2f09c75 2029 goto err;
116c20d2 2030
c9ffd2ea
TG		 2031 /* Pad string table. */
2032 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
2033 if (padlen < 0)
2034 return FALSE;
2035 mdata->filelen += padlen;
2036 sym->strsize += padlen;
116c20d2 2037
c2f09c75 2038 return TRUE;
116c20d2 2039
c2f09c75
TG		 2040 err:
2041 _bfd_stringtab_free (strtab);
64d29018 2042 sym->strsize = 0;
c2f09c75 2043 return FALSE;
116c20d2
NC		 2044}
2045
c9ffd2ea
TG		 2046static bfd_boolean
2047bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
2048{
2049 bfd_mach_o_symtab_command *sym = &command->command.symtab;
2050 struct mach_o_symtab_command_external raw;
2051
2052 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
2053
2054 /* The command. */
2055 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
2056 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
2057 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
2058 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
2059
2060 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
2061 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2062 return FALSE;
2063
2064 return TRUE;
2065}
2066
2067/* Count the number of indirect symbols in the image.
2068 Requires that the sections are in their final order. */
2069
2070static unsigned int
2071bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
2072{
2073 unsigned int i;
2074 unsigned int nisyms = 0;
2075
2076 for (i = 0; i < mdata->nsects; ++i)
2077 {
2078 bfd_mach_o_section *sec = mdata->sections[i];
2079
2080 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2081 {
2082 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2083 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2084 case BFD_MACH_O_S_SYMBOL_STUBS:
2085 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2086 break;
2087 default:
2088 break;
2089 }
2090 }
2091 return nisyms;
2092}
2093
2094/* Create the dysymtab. */
2095
2096static bfd_boolean
2097bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
2098{
2099 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2100
2101 /* TODO:
2102 We are not going to try and fill these in yet and, moreover, we are
2103 going to bail if they are already set. */
2104 if (cmd->nmodtab != 0
2105 || cmd->ntoc != 0
2106 || cmd->nextrefsyms != 0)
2107 {
4eca0228
AM		 2108 _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet"
2109 " implemented for dysymtab commands."));
c9ffd2ea
TG		 2110 return FALSE;
2111 }
2112
2113 cmd->ilocalsym = 0;
2114
2115 if (bfd_get_symcount (abfd) > 0)
2116 {
2117 asymbol **symbols = bfd_get_outsymbols (abfd);
2118 unsigned long i;
2119
2120 /* Count the number of each kind of symbol. */
2121 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2122 {
2123 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2124 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
2125 break;
2126 }
2127 cmd->nlocalsym = i;
2128 cmd->iextdefsym = i;
2129 for (; i < bfd_get_symcount (abfd); ++i)
2130 {
2131 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2132 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
2133 break;
2134 }
2135 cmd->nextdefsym = i - cmd->nlocalsym;
2136 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
2137 cmd->nundefsym = bfd_get_symcount (abfd)
2138 - cmd->nlocalsym
2139 - cmd->nextdefsym;
2140 }
2141 else
2142 {
2143 cmd->nlocalsym = 0;
2144 cmd->iextdefsym = 0;
2145 cmd->nextdefsym = 0;
2146 cmd->iundefsym = 0;
2147 cmd->nundefsym = 0;
2148 }
2149
2150 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
2151 if (cmd->nindirectsyms > 0)
2152 {
2153 unsigned i;
2154 unsigned n;
2155
2156 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2157 cmd->indirectsymoff = mdata->filelen;
2158 mdata->filelen += cmd->nindirectsyms * 4;
2159
64d29018
NC		 2160 if (cmd->nindirectsyms * 4 < cmd->nindirectsyms)
2161 return FALSE;
c9ffd2ea
TG		 2162 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
2163 if (cmd->indirect_syms == NULL)
07d6d2b8 2164 return FALSE;
c9ffd2ea
TG		 2165
2166 n = 0;
2167 for (i = 0; i < mdata->nsects; ++i)
2168 {
2169 bfd_mach_o_section *sec = mdata->sections[i];
2170
2171 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2172 {
2173 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2174 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2175 case BFD_MACH_O_S_SYMBOL_STUBS:
2176 {
2177 unsigned j, num;
2178 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
2179
2180 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2181 if (isyms == NULL || num == 0)
2182 break;
2183 /* Record the starting index in the reserved1 field. */
2184 sec->reserved1 = n;
2185 for (j = 0; j < num; j++, n++)
2186 {
2187 if (isyms[j] == NULL)
07d6d2b8 2188 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
c9ffd2ea
TG		 2189 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
2190 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
07d6d2b8 2191 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
c9ffd2ea
TG		 2192 | BFD_MACH_O_INDIRECT_SYM_ABS;
2193 else
07d6d2b8 2194 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
c9ffd2ea
TG		 2195 }
2196 }
2197 break;
2198 default:
2199 break;
2200 }
2201 }
2202 }
2203
2204 return TRUE;
2205}
2206
7f307238
IS		 2207/* Write a dysymtab command.
2208 TODO: Possibly coalesce writes of smaller objects. */
2209
2210static bfd_boolean
2211bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2212{
2213 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2214
2215 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2216
2217 if (cmd->nmodtab != 0)
2218 {
2219 unsigned int i;
2220
2221 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2222 return FALSE;
2223
2224 for (i = 0; i < cmd->nmodtab; i++)
2225 {
2226 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2227 unsigned int iinit;
2228 unsigned int ninit;
2229
2230 iinit = module->iinit & 0xffff;
2231 iinit |= ((module->iterm & 0xffff) << 16);
2232
2233 ninit = module->ninit & 0xffff;
2234 ninit |= ((module->nterm & 0xffff) << 16);
2235
2236 if (bfd_mach_o_wide_p (abfd))
2237 {
2238 struct mach_o_dylib_module_64_external w;
2239
2240 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2241 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2242 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2243 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2244 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2245 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2246 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2247 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2248 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2249 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2250 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2251 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2252 &w.objc_module_info_addr);
2253 bfd_h_put_32 (abfd, module->objc_module_info_size,
2254 &w.objc_module_info_size);
2255
2256 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2257 return FALSE;
2258 }
2259 else
2260 {
2261 struct mach_o_dylib_module_external n;
2262
2263 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2264 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2265 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2266 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2267 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2268 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2269 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2270 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2271 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2272 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2273 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2274 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2275 &n.objc_module_info_addr);
2276 bfd_h_put_32 (abfd, module->objc_module_info_size,
2277 &n.objc_module_info_size);
2278
2279 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2280 return FALSE;
2281 }
2282 }
2283 }
2284
2285 if (cmd->ntoc != 0)
2286 {
2287 unsigned int i;
2288
2289 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2290 return FALSE;
2291
2292 for (i = 0; i < cmd->ntoc; i++)
2293 {
2294 struct mach_o_dylib_table_of_contents_external raw;
2295 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2296
2297 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2298 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2299
2300 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2301 return FALSE;
2302 }
2303 }
68ffbac6 2304
7f307238
IS		 2305 if (cmd->nindirectsyms > 0)
2306 {
2307 unsigned int i;
2308
2309 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2310 return FALSE;
2311
2312 for (i = 0; i < cmd->nindirectsyms; ++i)
2313 {
2314 unsigned char raw[4];
2315
2316 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2317 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2318 return FALSE;
68ffbac6 2319 }
7f307238
IS		 2320 }
2321
2322 if (cmd->nextrefsyms != 0)
2323 {
2324 unsigned int i;
2325
2326 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2327 return FALSE;
2328
2329 for (i = 0; i < cmd->nextrefsyms; i++)
2330 {
2331 unsigned long v;
2332 unsigned char raw[4];
2333 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2334
2335 /* Fields isym and flags are written as bit-fields, thus we need
2336 a specific processing for endianness. */
2337
2338 if (bfd_big_endian (abfd))
2339 {
2340 v = ((ref->isym & 0xffffff) << 8);
2341 v |= ref->flags & 0xff;
2342 }
2343 else
2344 {
2345 v = ref->isym & 0xffffff;
2346 v |= ((ref->flags & 0xff) << 24);
2347 }
2348
2349 bfd_h_put_32 (abfd, v, raw);
2350 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2351 return FALSE;
2352 }
2353 }
2354
2355 /* The command. */
2356 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2357 return FALSE;
2358 else
2359 {
2360 struct mach_o_dysymtab_command_external raw;
2361
2362 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2363 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2364 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2365 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2366 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2367 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2368 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2369 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2370 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2371 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2372 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2373 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2374 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2375 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2376 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2377 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2378 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2379 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2380
2381 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2382 return FALSE;
2383 }
2384
2385 return TRUE;
2386}
2387
2388static unsigned
b22161d6 2389bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
7f307238 2390{
b22161d6 2391 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
68588f95
IS		 2392
2393 /* Just leave debug symbols where they are (pretend they are local, and
2394 then they will just be sorted on position). */
b22161d6 2395 if (s->n_type & BFD_MACH_O_N_STAB)
68588f95
IS		 2396 return 0;
2397
7f307238 2398 /* Local (we should never see an undefined local AFAICT). */
b22161d6 2399 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
7f307238
IS		 2400 return 0;
2401
2402 /* Common symbols look like undefined externs. */
68588f95 2403 if (mtyp == BFD_MACH_O_N_UNDF)
7f307238
IS		 2404 return 2;
2405
b22161d6 2406 /* A defined non-local, non-debug symbol. */
7f307238
IS		 2407 return 1;
2408}
2409
2410static int
2411bfd_mach_o_cf_symbols (const void *a, const void *b)
2412{
2413 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2414 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2415 unsigned int soa, sob;
2416
b22161d6
IS		 2417 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2418 sob = bfd_mach_o_primary_symbol_sort_key (sb);
7f307238
IS		 2419 if (soa < sob)
2420 return -1;
2421
2422 if (soa > sob)
2423 return 1;
2424
68588f95 2425 /* If it's local or stab, just preserve the input order. */
7f307238
IS		 2426 if (soa == 0)
2427 {
2428 if (sa->symbol.udata.i < sb->symbol.udata.i)
07d6d2b8 2429 return -1;
7f307238 2430 if (sa->symbol.udata.i > sb->symbol.udata.i)
07d6d2b8 2431 return 1;
b22161d6
IS		 2432
2433 /* This is probably an error. */
7f307238
IS		 2434 return 0;
2435 }
2436
b22161d6
IS		 2437 /* The second sort key is name. */
2438 return strcmp (sa->symbol.name, sb->symbol.name);
7f307238
IS		 2439}
2440
2441/* Process the symbols.
2442
2443 This should be OK for single-module files - but it is not likely to work
2444 for multi-module shared libraries.
2445
2446 (a) If the application has not filled in the relevant mach-o fields, make
2447 an estimate.
2448
2449 (b) Order them, like this:
2450 ( i) local.
2451 (unsorted)
2452 ( ii) external defined
2453 (by name)
b22161d6 2454 (iii) external undefined/common
7f307238
IS		 2455 (by name)
2456 ( iv) common
2457 (by name)
b22161d6 2458*/
92bc0e80
TG		 2459
2460static bfd_boolean
b22161d6 2461bfd_mach_o_mangle_symbols (bfd *abfd)
92bc0e80
TG		 2462{
2463 unsigned long i;
2464 asymbol **symbols = bfd_get_outsymbols (abfd);
2465
7f307238
IS		 2466 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2467 return TRUE;
2468
92bc0e80
TG		 2469 for (i = 0; i < bfd_get_symcount (abfd); i++)
2470 {
2471 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2472
b22161d6
IS		 2473 /* We use this value, which is out-of-range as a symbol index, to signal
2474 that the mach-o-specific data are not filled in and need to be created
2475 from the bfd values. It is much preferable for the application to do
2476 this, since more meaningful diagnostics can be made that way. */
2477
2478 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
07d6d2b8
AM		 2479 {
2480 /* No symbol information has been set - therefore determine
2481 it from the bfd symbol flags/info. */
2482 if (s->symbol.section == bfd_abs_section_ptr)
2483 s->n_type = BFD_MACH_O_N_ABS;
2484 else if (s->symbol.section == bfd_und_section_ptr)
2485 {
2486 s->n_type = BFD_MACH_O_N_UNDF;
2487 if (s->symbol.flags & BSF_WEAK)
2488 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
2489 /* mach-o automatically makes undefined symbols extern. */
7f307238 2490 s->n_type |= BFD_MACH_O_N_EXT;
b22161d6 2491 s->symbol.flags |= BSF_GLOBAL;
07d6d2b8
AM		 2492 }
2493 else if (s->symbol.section == bfd_com_section_ptr)
b22161d6 2494 {
07d6d2b8
AM		 2495 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2496 s->symbol.flags |= BSF_GLOBAL;
2497 }
2498 else
2499 s->n_type = BFD_MACH_O_N_SECT;
68ffbac6 2500
07d6d2b8
AM		 2501 if (s->symbol.flags & BSF_GLOBAL)
2502 s->n_type |= BFD_MACH_O_N_EXT;
2503 }
92bc0e80 2504
7f307238 2505 /* Put the section index in, where required. */
68588f95 2506 if ((s->symbol.section != bfd_abs_section_ptr
07d6d2b8
AM		 2507 && s->symbol.section != bfd_und_section_ptr
2508 && s->symbol.section != bfd_com_section_ptr)
2509 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2510 && s->symbol.name == NULL))
707e555b 2511 s->n_sect = s->symbol.section->output_section->target_index;
92bc0e80 2512
b22161d6
IS		 2513 /* Number to preserve order for local and debug syms. */
2514 s->symbol.udata.i = i;
7f307238
IS		 2515 }
2516
b22161d6
IS		 2517 /* Sort the symbols. */
2518 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2519 sizeof (asymbol *), bfd_mach_o_cf_symbols);
7f307238 2520
b22161d6
IS		 2521 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2522 {
2523 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2524 s->symbol.udata.i = i; /* renumber. */
7f307238
IS		 2525 }
2526
2527 return TRUE;
2528}
2529
2530/* We build a flat table of sections, which can be re-ordered if necessary.
2531 Fill in the section number and other mach-o-specific data. */
2532
2533static bfd_boolean
2534bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2535{
2536 asection *sec;
2537 unsigned target_index;
2538 unsigned nsect;
2539
2540 nsect = bfd_count_sections (abfd);
68ffbac6 2541
7f307238
IS		 2542 /* Don't do it if it's already set - assume the application knows what it's
2543 doing. */
2544 if (mdata->nsects == nsect
2545 && (mdata->nsects == 0 || mdata->sections != NULL))
2546 return TRUE;
2547
a1165289
NC		 2548 /* We need to check that this can be done... */
2549 if (nsect > 255)
2550 {
4eca0228
AM		 2551 _bfd_error_handler (_("mach-o: there are too many sections (%u)"
2552 " maximum is 255,\n"), nsect);
a1165289
NC		 2553 return FALSE;
2554 }
2555
7f307238 2556 mdata->nsects = nsect;
64d29018
NC		 2557 mdata->sections = bfd_alloc2 (abfd,
2558 mdata->nsects, sizeof (bfd_mach_o_section *));
7f307238
IS		 2559 if (mdata->sections == NULL)
2560 return FALSE;
2561
7f307238 2562 /* Create Mach-O sections.
68ffbac6 2563 Section type, attribute and align should have been set when the
7f307238
IS		 2564 section was created - either read in or specified. */
2565 target_index = 0;
2566 for (sec = abfd->sections; sec; sec = sec->next)
2567 {
2568 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2569 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2570
2571 mdata->sections[target_index] = msect;
2572
2573 msect->addr = bfd_get_section_vma (abfd, sec);
2574 msect->size = bfd_get_section_size (sec);
2575
68ffbac6 2576 /* Use the largest alignment set, in case it was bumped after the
7f307238
IS		 2577 section was created. */
2578 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2579
2580 msect->offset = 0;
2581 sec->target_index = ++target_index;
92bc0e80 2582 }
7f307238 2583
92bc0e80
TG		 2584 return TRUE;
2585}
2586
154a1ee5 2587bfd_boolean
116c20d2 2588bfd_mach_o_write_contents (bfd *abfd)
3af9a47b 2589{
046b007d 2590 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea
TG		 2591 bfd_mach_o_load_command *cmd;
2592 bfd_mach_o_symtab_command *symtab = NULL;
2593 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2594 bfd_mach_o_segment_command *linkedit = NULL;
3af9a47b 2595
7f307238 2596 /* Make the commands, if not already present. */
c9ffd2ea
TG		 2597 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2598 return FALSE;
2599 abfd->output_has_begun = TRUE;
92bc0e80 2600
c9ffd2ea 2601 /* Write the header. */
154a1ee5 2602 if (!bfd_mach_o_write_header (abfd, &mdata->header))
b34976b6 2603 return FALSE;
3af9a47b 2604
c9ffd2ea
TG		 2605 /* First pass: allocate the linkedit segment. */
2606 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2607 switch (cmd->type)
2608 {
2609 case BFD_MACH_O_LC_SEGMENT_64:
2610 case BFD_MACH_O_LC_SEGMENT:
2611 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2612 linkedit = &cmd->command.segment;
2613 break;
2614 case BFD_MACH_O_LC_SYMTAB:
2615 symtab = &cmd->command.symtab;
2616 break;
2617 case BFD_MACH_O_LC_DYSYMTAB:
2618 dysymtab = &cmd->command.dysymtab;
2619 break;
2620 case BFD_MACH_O_LC_DYLD_INFO:
2621 {
2622 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2623
2624 if (di->rebase_size != 0)
2625 {
2626 di->rebase_off = mdata->filelen;
2627 mdata->filelen += di->rebase_size;
2628 }
2629 if (di->bind_size != 0)
2630 {
2631 di->bind_off = mdata->filelen;
2632 mdata->filelen += di->bind_size;
2633 }
2634 if (di->weak_bind_size != 0)
2635 {
2636 di->weak_bind_off = mdata->filelen;
2637 mdata->filelen += di->weak_bind_size;
2638 }
2639 if (di->lazy_bind_size != 0)
2640 {
2641 di->lazy_bind_off = mdata->filelen;
2642 mdata->filelen += di->lazy_bind_size;
2643 }
2644 if (di->export_size != 0)
2645 {
2646 di->export_off = mdata->filelen;
2647 mdata->filelen += di->export_size;
2648 }
2649 }
2650 break;
2651 case BFD_MACH_O_LC_LOAD_DYLIB:
2652 case BFD_MACH_O_LC_LOAD_DYLINKER:
2653 case BFD_MACH_O_LC_MAIN:
2654 /* Nothing to do. */
2655 break;
2656 default:
4eca0228 2657 _bfd_error_handler
d42c267e
AM		 2658 (_("unable to allocate data for load command %#x"),
2659 cmd->type);
c9ffd2ea
TG		 2660 break;
2661 }
2662
2663 /* Specially handle symtab and dysymtab. */
2664
2665 /* Pre-allocate the symbol table (but not the string table). The reason
2666 is that the dysymtab is after the symbol table but before the string
2667 table (required by the native strip tool). */
2668 if (symtab != NULL)
2669 {
2670 unsigned int symlen;
2671 unsigned int wide = bfd_mach_o_wide_p (abfd);
2672
2673 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2674
2675 /* Align for symbols. */
2676 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2677 symtab->symoff = mdata->filelen;
2678
2679 symtab->nsyms = bfd_get_symcount (abfd);
2680 mdata->filelen += symtab->nsyms * symlen;
2681 }
2682
2683 /* Build the dysymtab. */
2684 if (dysymtab != NULL)
2685 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2686 return FALSE;
2687
2688 /* Write symtab and strtab. */
2689 if (symtab != NULL)
2690 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2691 return FALSE;
2692
2693 /* Adjust linkedit size. */
2694 if (linkedit != NULL)
2695 {
2696 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2697
2698 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2699 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2700 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2701
2702 linkedit->initprot = BFD_MACH_O_PROT_READ;
2703 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2704 | BFD_MACH_O_PROT_EXECUTE;
2705 }
2706
2707 /* Second pass: write commands. */
2708 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 2709 {
46d1c23b 2710 struct mach_o_load_command_external raw;
3af9a47b
NC		 2711 unsigned long typeflag;
2712
c9ffd2ea 2713 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
3af9a47b 2714
46d1c23b 2715 bfd_h_put_32 (abfd, typeflag, raw.cmd);
c9ffd2ea 2716 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
3af9a47b 2717
c9ffd2ea 2718 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
07d6d2b8 2719 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
b34976b6 2720 return FALSE;
3af9a47b 2721
c9ffd2ea 2722 switch (cmd->type)
3af9a47b
NC		 2723 {
2724 case BFD_MACH_O_LC_SEGMENT:
c9ffd2ea 2725 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
1e8a024a
TG		 2726 return FALSE;
2727 break;
2728 case BFD_MACH_O_LC_SEGMENT_64:
c9ffd2ea 2729 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
b34976b6 2730 return FALSE;
3af9a47b
NC		 2731 break;
2732 case BFD_MACH_O_LC_SYMTAB:
c9ffd2ea 2733 if (!bfd_mach_o_write_symtab (abfd, cmd))
b34976b6 2734 return FALSE;
3af9a47b 2735 break;
7f307238 2736 case BFD_MACH_O_LC_DYSYMTAB:
c9ffd2ea 2737 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
7f307238
IS		 2738 return FALSE;
2739 break;
3af9a47b
NC		 2740 case BFD_MACH_O_LC_THREAD:
2741 case BFD_MACH_O_LC_UNIXTHREAD:
c9ffd2ea 2742 if (!bfd_mach_o_write_thread (abfd, cmd))
b34976b6 2743 return FALSE;
3af9a47b 2744 break;
3af9a47b 2745 case BFD_MACH_O_LC_LOAD_DYLIB:
c9ffd2ea
TG		 2746 if (!bfd_mach_o_write_dylib (abfd, cmd))
2747 return FALSE;
2748 break;
3af9a47b 2749 case BFD_MACH_O_LC_LOAD_DYLINKER:
c9ffd2ea
TG		 2750 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2751 return FALSE;
2752 break;
2753 case BFD_MACH_O_LC_MAIN:
2754 if (!bfd_mach_o_write_main (abfd, cmd))
2755 return FALSE;
2756 break;
2757 case BFD_MACH_O_LC_DYLD_INFO:
2758 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2759 return FALSE;
3af9a47b
NC		 2760 break;
2761 default:
4eca0228 2762 _bfd_error_handler
d42c267e
AM		 2763 (_("unable to write unknown load command %#x"),
2764 cmd->type);
b34976b6 2765 return FALSE;
3af9a47b
NC		 2766 }
2767 }
2768
b34976b6 2769 return TRUE;
3af9a47b
NC		 2770}
2771
f1bde64c
TG		 2772static void
2773bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
07d6d2b8 2774 bfd_mach_o_section *s)
f1bde64c 2775{
f1bde64c
TG		 2776 if (seg->sect_head == NULL)
2777 seg->sect_head = s;
2778 else
2779 seg->sect_tail->next = s;
2780 seg->sect_tail = s;
2781}
2782
2783/* Create section Mach-O flags from BFD flags. */
2784
2785static void
3cc27770
TG		 2786bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2787 asection *sec)
f1bde64c
TG		 2788{
2789 flagword bfd_flags;
2790 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2791
2792 /* Create default flags. */
2793 bfd_flags = bfd_get_section_flags (abfd, sec);
2794 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2795 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2796 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2797 | BFD_MACH_O_S_REGULAR;
2798 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2799 s->flags = BFD_MACH_O_S_ZEROFILL;
2800 else if (bfd_flags & SEC_DEBUGGING)
2801 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2802 else
2803 s->flags = BFD_MACH_O_S_REGULAR;
2804}
2805
7f307238 2806static bfd_boolean
c9ffd2ea 2807bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
7f307238 2808{
c9ffd2ea
TG		 2809 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2810 unsigned int i, j;
7f307238 2811
7f307238 2812 seg->vmaddr = 0;
7f307238 2813 seg->fileoff = mdata->filelen;
c9ffd2ea
TG		 2814 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2815 | BFD_MACH_O_PROT_EXECUTE;
2816 seg->maxprot = seg->initprot;
7f307238 2817
68ffbac6 2818 /* Append sections to the segment.
09903f4b
IS		 2819
2820 This is a little tedious, we have to honor the need to account zerofill
2821 sections after all the rest. This forces us to do the calculation of
68ffbac6 2822 total vmsize in three passes so that any alignment increments are
09903f4b 2823 properly accounted. */
7f307238
IS		 2824 for (i = 0; i < mdata->nsects; ++i)
2825 {
2826 bfd_mach_o_section *s = mdata->sections[i];
2827 asection *sec = s->bfdsection;
2828
09903f4b
IS		 2829 /* Although we account for zerofill section sizes in vm order, they are
2830 placed in the file in source sequence. */
c9ffd2ea 2831 bfd_mach_o_append_section_to_segment (seg, s);
e5081f2f 2832 s->offset = 0;
68ffbac6 2833
c9ffd2ea
TG		 2834 /* Zerofill sections have zero file size & offset, the only content
2835 written to the file is the symbols. */
e5081f2f 2836 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
07d6d2b8 2837 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
c9ffd2ea 2838 == BFD_MACH_O_S_GB_ZEROFILL))
07d6d2b8 2839 continue;
e5081f2f 2840
c9ffd2ea
TG		 2841 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2842 sections, even those with zero size. */
e5081f2f 2843 if (s->size > 0)
c9ffd2ea 2844 {
09903f4b
IS		 2845 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2846 seg->vmsize += s->size;
2847
c9ffd2ea
TG		 2848 /* MH_OBJECT files have unaligned content. */
2849 if (1)
2850 {
2851 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
07d6d2b8
AM		 2852 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2853 }
09903f4b
IS		 2854 seg->filesize += s->size;
2855
c9ffd2ea
TG		 2856 /* The system tools write even zero-sized sections with an offset
2857 field set to the current file position. */
07d6d2b8 2858 s->offset = mdata->filelen;
c9ffd2ea 2859 }
7f307238
IS		 2860
2861 sec->filepos = s->offset;
7f307238
IS		 2862 mdata->filelen += s->size;
2863 }
2864
3cc27770 2865 /* Now pass through again, for zerofill, only now we just update the
c9ffd2ea
TG		 2866 vmsize, and then for zerofill_GB. */
2867 for (j = 0; j < 2; j++)
09903f4b 2868 {
c9ffd2ea 2869 unsigned int stype;
68ffbac6 2870
c9ffd2ea
TG		 2871 if (j == 0)
2872 stype = BFD_MACH_O_S_ZEROFILL;
2873 else
2874 stype = BFD_MACH_O_S_GB_ZEROFILL;
09903f4b 2875
c9ffd2ea
TG		 2876 for (i = 0; i < mdata->nsects; ++i)
2877 {
2878 bfd_mach_o_section *s = mdata->sections[i];
2879
2880 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2881 continue;
2882
2883 if (s->size > 0)
2884 {
2885 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2886 seg->vmsize += s->size;
2887 }
09903f4b
IS		 2888 }
2889 }
bb76d940 2890
09903f4b 2891 /* Allocate space for the relocations. */
707e555b 2892 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
bb76d940
IS		 2893
2894 for (i = 0; i < mdata->nsects; ++i)
2895 {
2896 bfd_mach_o_section *ms = mdata->sections[i];
2897 asection *sec = ms->bfdsection;
68ffbac6 2898
c9ffd2ea
TG		 2899 ms->nreloc = sec->reloc_count;
2900 if (ms->nreloc == 0)
07d6d2b8 2901 {
c9ffd2ea 2902 /* Clear nreloc and reloff if there is no relocs. */
bb76d940
IS		 2903 ms->reloff = 0;
2904 continue;
07d6d2b8 2905 }
bb76d940
IS		 2906 sec->rel_filepos = mdata->filelen;
2907 ms->reloff = sec->rel_filepos;
2908 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2909 }
7f307238
IS		 2910
2911 return TRUE;
2912}
2913
c9ffd2ea
TG		 2914static bfd_boolean
2915bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
50d10658 2916{
c9ffd2ea 2917 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
50d10658 2918 unsigned int i;
c9ffd2ea
TG		 2919 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2920 bfd_vma vma;
2921 bfd_mach_o_section *s;
2922
2923 seg->vmsize = 0;
50d10658 2924
c9ffd2ea
TG		 2925 seg->fileoff = mdata->filelen;
2926 seg->maxprot = 0;
2927 seg->initprot = 0;
2928 seg->flags = 0;
2929
2930 /* Append sections to the segment. We assume they are properly ordered
2931 by vma (but we check that). */
2932 vma = 0;
50d10658
IS		 2933 for (i = 0; i < mdata->nsects; ++i)
2934 {
c9ffd2ea 2935 s = mdata->sections[i];
50d10658 2936
c9ffd2ea
TG		 2937 /* Consider only sections for this segment. */
2938 if (strcmp (seg->segname, s->segname) != 0)
2939 continue;
50d10658 2940
c9ffd2ea 2941 bfd_mach_o_append_section_to_segment (seg, s);
7f307238 2942
86eafac0
NC		 2943 if (s->addr < vma)
2944 {
4eca0228 2945 _bfd_error_handler
695344c0 2946 /* xgettext:c-format */
2dcf00ce
AM		 2947 (_("section address (%#" PRIx64 ") "
2948 "below start of segment (%#" PRIx64 ")"),
2949 (uint64_t) s->addr, (uint64_t) vma);
86eafac0
NC		 2950 return FALSE;
2951 }
2952
c9ffd2ea 2953 vma = s->addr + s->size;
7f307238
IS		 2954 }
2955
c9ffd2ea
TG		 2956 /* Set segment file offset: make it page aligned. */
2957 vma = seg->sect_head->addr;
2958 seg->vmaddr = vma & ~pagemask;
2959 if ((mdata->filelen & pagemask) > (vma & pagemask))
2960 mdata->filelen += pagemask + 1;
2961 seg->fileoff = mdata->filelen & ~pagemask;
2962 mdata->filelen = seg->fileoff + (vma & pagemask);
7f307238 2963
c9ffd2ea
TG		 2964 /* Set section file offset. */
2965 for (s = seg->sect_head; s != NULL; s = s->next)
7f307238 2966 {
c9ffd2ea
TG		 2967 asection *sec = s->bfdsection;
2968 flagword flags = bfd_get_section_flags (abfd, sec);
b22161d6 2969
c9ffd2ea
TG		 2970 /* Adjust segment size. */
2971 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2972 seg->vmsize += s->size;
2973
2974 /* File offset and length. */
2975 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2976
2977 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
07d6d2b8 2978 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
c9ffd2ea 2979 != BFD_MACH_O_S_GB_ZEROFILL))
b22161d6 2980 {
c9ffd2ea
TG		 2981 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2982
2983 s->offset = mdata->filelen;
2984 s->bfdsection->filepos = s->offset;
2985
2986 seg->filesize += s->size;
2987 mdata->filelen += s->size;
b22161d6 2988 }
c9ffd2ea 2989 else
b22161d6 2990 {
c9ffd2ea
TG		 2991 s->offset = 0;
2992 s->bfdsection->filepos = 0;
2993 }
2994
2995 /* Set protection. */
2996 if (flags & SEC_LOAD)
2997 {
2998 if (flags & SEC_CODE)
2999 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
3000 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
3001 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
b22161d6 3002 }
c9ffd2ea
TG		 3003
3004 /* Relocs shouldn't appear in non-object files. */
3005 if (s->bfdsection->reloc_count != 0)
3006 return FALSE;
b22161d6 3007 }
c9ffd2ea
TG		 3008
3009 /* Set maxprot. */
3010 if (seg->initprot != 0)
3011 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
3012 | BFD_MACH_O_PROT_EXECUTE;
b22161d6 3013 else
c9ffd2ea 3014 seg->maxprot = 0;
b22161d6 3015
c9ffd2ea
TG		 3016 /* Round segment size (and file size). */
3017 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
3018 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
3019 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
7f307238 3020
c9ffd2ea
TG		 3021 return TRUE;
3022}
68ffbac6 3023
c9ffd2ea
TG		 3024/* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
3025 fields in header. */
68ffbac6 3026
86eafac0 3027static bfd_boolean
c9ffd2ea
TG		 3028bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
3029{
3030 unsigned wide = mach_o_wide_p (&mdata->header);
3031 unsigned int hdrlen;
3032 ufile_ptr offset;
3033 bfd_mach_o_load_command *cmd;
3034 unsigned int align;
86eafac0 3035 bfd_boolean ret = TRUE;
c9ffd2ea
TG		 3036
3037 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3038 align = wide ? 8 - 1 : 4 - 1;
3039 offset = hdrlen;
3040 mdata->header.ncmds = 0;
50d10658 3041
c9ffd2ea
TG		 3042 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
3043 {
3044 mdata->header.ncmds++;
3045 cmd->offset = offset;
68ffbac6 3046
c9ffd2ea
TG		 3047 switch (cmd->type)
3048 {
3049 case BFD_MACH_O_LC_SEGMENT_64:
3050 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
3051 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
3052 break;
3053 case BFD_MACH_O_LC_SEGMENT:
3054 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
3055 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
3056 break;
3057 case BFD_MACH_O_LC_SYMTAB:
3058 cmd->len = sizeof (struct mach_o_symtab_command_external)
3059 + BFD_MACH_O_LC_SIZE;
3060 break;
3061 case BFD_MACH_O_LC_DYSYMTAB:
3062 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
3063 + BFD_MACH_O_LC_SIZE;
3064 break;
3065 case BFD_MACH_O_LC_LOAD_DYLIB:
3066 cmd->len = sizeof (struct mach_o_dylib_command_external)
3067 + BFD_MACH_O_LC_SIZE;
3068 cmd->command.dylib.name_offset = cmd->len;
3069 cmd->len += strlen (cmd->command.dylib.name_str);
3070 cmd->len = (cmd->len + align) & ~align;
3071 break;
3072 case BFD_MACH_O_LC_LOAD_DYLINKER:
3073 cmd->len = sizeof (struct mach_o_str_command_external)
3074 + BFD_MACH_O_LC_SIZE;
3075 cmd->command.dylinker.name_offset = cmd->len;
3076 cmd->len += strlen (cmd->command.dylinker.name_str);
3077 cmd->len = (cmd->len + align) & ~align;
3078 break;
3079 case BFD_MACH_O_LC_MAIN:
3080 cmd->len = sizeof (struct mach_o_entry_point_command_external)
3081 + BFD_MACH_O_LC_SIZE;
3082 break;
3083 case BFD_MACH_O_LC_DYLD_INFO:
3084 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
3085 + BFD_MACH_O_LC_SIZE;
3086 break;
3087 default:
4eca0228 3088 _bfd_error_handler
d42c267e
AM		 3089 (_("unable to layout unknown load command %#x"),
3090 cmd->type);
86eafac0 3091 ret = FALSE;
c9ffd2ea 3092 break;
7f307238 3093 }
c9ffd2ea
TG		 3094
3095 BFD_ASSERT (cmd->len % (align + 1) == 0);
3096 offset += cmd->len;
7f307238 3097 }
c9ffd2ea
TG		 3098 mdata->header.sizeofcmds = offset - hdrlen;
3099 mdata->filelen = offset;
86eafac0
NC		 3100
3101 return ret;
c9ffd2ea 3102}
7f307238 3103
c9ffd2ea
TG		 3104/* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
3105 segment. */
3106
3107static void
3108bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
3109 bfd_mach_o_load_command *cmd,
3110 const char *segname, unsigned int nbr_sect)
3111{
3112 bfd_mach_o_segment_command *seg = &cmd->command.segment;
3113 unsigned wide = mach_o_wide_p (&mdata->header);
3114
3115 /* Init segment command. */
3116 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
3117 cmd->type_required = FALSE;
3118
3119 strcpy (seg->segname, segname);
3120 seg->nsects = nbr_sect;
3121
3122 seg->vmaddr = 0;
3123 seg->vmsize = 0;
3124
3125 seg->fileoff = 0;
3126 seg->filesize = 0;
3127 seg->maxprot = 0;
3128 seg->initprot = 0;
3129 seg->flags = 0;
3130 seg->sect_head = NULL;
3131 seg->sect_tail = NULL;
7f307238
IS		 3132}
3133
3134/* Build Mach-O load commands (currently assuming an MH_OBJECT file).
3135 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
3136 and copy functionality. */
154a1ee5
TG		 3137
3138bfd_boolean
3139bfd_mach_o_build_commands (bfd *abfd)
3140{
046b007d 3141 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bbd56171 3142 unsigned wide = mach_o_wide_p (&mdata->header);
c9ffd2ea
TG		 3143 unsigned int nbr_segcmd = 0;
3144 bfd_mach_o_load_command *commands;
3145 unsigned int nbr_commands;
bbd56171
IS		 3146 int symtab_idx = -1;
3147 int dysymtab_idx = -1;
c9ffd2ea
TG		 3148 int main_idx = -1;
3149 unsigned int i;
154a1ee5 3150
c9ffd2ea
TG		 3151 /* Return now if already built. */
3152 if (mdata->header.ncmds != 0)
3153 return TRUE;
154a1ee5 3154
7f307238 3155 /* Fill in the file type, if not already set. */
7f307238 3156 if (mdata->header.filetype == 0)
154a1ee5 3157 {
7f307238 3158 if (abfd->flags & EXEC_P)
07d6d2b8 3159 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
7f307238 3160 else if (abfd->flags & DYNAMIC)
07d6d2b8 3161 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
7f307238 3162 else
07d6d2b8 3163 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
154a1ee5 3164 }
7f307238
IS		 3165
3166 /* If hasn't already been done, flatten sections list, and sort
3167 if/when required. Must be done before the symbol table is adjusted,
3168 since that depends on properly numbered sections. */
3169 if (mdata->nsects == 0 || mdata->sections == NULL)
3170 if (! bfd_mach_o_mangle_sections (abfd, mdata))
3171 return FALSE;
3172
3173 /* Order the symbol table, fill-in/check mach-o specific fields and
3174 partition out any indirect symbols. */
b22161d6 3175 if (!bfd_mach_o_mangle_symbols (abfd))
7f307238
IS		 3176 return FALSE;
3177
c9ffd2ea
TG		 3178 /* Segment commands. */
3179 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3180 {
3181 /* Only one segment for all the sections. But the segment is
3182 optional if there is no sections. */
3183 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
3184 }
3185 else
3186 {
3187 bfd_mach_o_section *prev_sect = NULL;
bbd56171 3188
c9ffd2ea
TG		 3189 /* One pagezero segment and one linkedit segment. */
3190 nbr_segcmd = 2;
bbd56171 3191
c9ffd2ea
TG		 3192 /* Create one segment for associated segment name in sections.
3193 Assume that sections with the same segment name are consecutive. */
3194 for (i = 0; i < mdata->nsects; i++)
3195 {
3196 bfd_mach_o_section *this_sect = mdata->sections[i];
bbd56171 3197
c9ffd2ea
TG		 3198 if (prev_sect == NULL
3199 || strcmp (prev_sect->segname, this_sect->segname) != 0)
3200 {
3201 nbr_segcmd++;
3202 prev_sect = this_sect;
3203 }
3204 }
154a1ee5 3205 }
154a1ee5 3206
c9ffd2ea
TG		 3207 nbr_commands = nbr_segcmd;
3208
3209 /* One command for the symbol table (only if there are symbols. */
7f307238 3210 if (bfd_get_symcount (abfd) > 0)
c9ffd2ea 3211 symtab_idx = nbr_commands++;
c2f09c75 3212
bbd56171
IS		 3213 /* FIXME:
3214 This is a rather crude test for whether we should build a dysymtab. */
3215 if (bfd_mach_o_should_emit_dysymtab ()
3216 && bfd_get_symcount (abfd))
3217 {
bbd56171
IS		 3218 /* If there should be a case where a dysymtab could be emitted without
3219 a symtab (seems improbable), this would need amending. */
c9ffd2ea 3220 dysymtab_idx = nbr_commands++;
bbd56171 3221 }
154a1ee5 3222
c9ffd2ea
TG		 3223 /* Add an entry point command. */
3224 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3225 && bfd_get_start_address (abfd) != 0)
3226 main_idx = nbr_commands++;
c2f09c75 3227
bbd56171 3228 /* Well, we must have a header, at least. */
c9ffd2ea 3229 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
f1bde64c 3230
bbd56171 3231 /* A bit unusual, but no content is valid;
7f307238 3232 as -n empty.s -o empty.o */
c9ffd2ea
TG		 3233 if (nbr_commands == 0)
3234 {
3235 /* Layout commands (well none...) and set headers command fields. */
86eafac0 3236 return bfd_mach_o_layout_commands (mdata);
c9ffd2ea 3237 }
f1bde64c 3238
c9ffd2ea
TG		 3239 /* Create commands for segments (and symtabs), prepend them. */
3240 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3241 if (commands == NULL)
7f307238 3242 return FALSE;
c9ffd2ea
TG		 3243 for (i = 0; i < nbr_commands - 1; i++)
3244 commands[i].next = &commands[i + 1];
3245 commands[nbr_commands - 1].next = mdata->first_command;
3246 if (mdata->first_command == NULL)
3247 mdata->last_command = &commands[nbr_commands - 1];
3248 mdata->first_command = &commands[0];
3249
3250 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3251 {
3252 /* For object file, there is only one segment. */
3253 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3254 }
3255 else if (nbr_segcmd != 0)
68ffbac6 3256 {
c9ffd2ea 3257 bfd_mach_o_load_command *cmd;
7f307238 3258
c9ffd2ea 3259 BFD_ASSERT (nbr_segcmd >= 2);
7f307238 3260
c9ffd2ea
TG		 3261 /* The pagezero. */
3262 cmd = &commands[0];
3263 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3264
3265 /* Segments from sections. */
3266 cmd++;
3267 for (i = 0; i < mdata->nsects;)
7f307238 3268 {
c9ffd2ea
TG		 3269 const char *segname = mdata->sections[i]->segname;
3270 unsigned int nbr_sect = 1;
3271
3272 /* Count number of sections for this segment. */
3273 for (i++; i < mdata->nsects; i++)
3274 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3275 nbr_sect++;
3276 else
3277 break;
3278
3279 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3280 cmd++;
7f307238 3281 }
bbd56171 3282
c9ffd2ea
TG		 3283 /* The linkedit. */
3284 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
7f307238 3285 }
f1bde64c 3286
bbd56171 3287 if (symtab_idx >= 0)
7f307238
IS		 3288 {
3289 /* Init symtab command. */
c9ffd2ea 3290 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
68ffbac6 3291
bbd56171 3292 cmd->type = BFD_MACH_O_LC_SYMTAB;
bbd56171 3293 cmd->type_required = FALSE;
7f307238 3294 }
154a1ee5 3295
bbd56171
IS		 3296 /* If required, setup symtab command, see comment above about the quality
3297 of this test. */
3298 if (dysymtab_idx >= 0)
7f307238 3299 {
c9ffd2ea 3300 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
bbd56171 3301
7f307238 3302 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
7f307238 3303 cmd->type_required = FALSE;
c9ffd2ea
TG		 3304 }
3305
3306 /* Create the main command. */
3307 if (main_idx >= 0)
3308 {
3309 bfd_mach_o_load_command *cmd = &commands[main_idx];
7f307238 3310
c9ffd2ea
TG		 3311 cmd->type = BFD_MACH_O_LC_MAIN;
3312 cmd->type_required = TRUE;
3313
3314 cmd->command.main.entryoff = 0;
3315 cmd->command.main.stacksize = 0;
154a1ee5 3316 }
154a1ee5 3317
c9ffd2ea 3318 /* Layout commands. */
86eafac0
NC		 3319 if (! bfd_mach_o_layout_commands (mdata))
3320 return FALSE;
c9ffd2ea 3321
7f307238
IS		 3322 /* So, now we have sized the commands and the filelen set to that.
3323 Now we can build the segment command and set the section file offsets. */
c9ffd2ea
TG		 3324 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3325 {
3326 for (i = 0; i < nbr_segcmd; i++)
3327 if (!bfd_mach_o_build_obj_seg_command
3328 (abfd, &commands[i].command.segment))
3329 return FALSE;
3330 }
3331 else
3332 {
3333 bfd_vma maxvma = 0;
7f307238 3334
c9ffd2ea
TG		 3335 /* Skip pagezero and linkedit segments. */
3336 for (i = 1; i < nbr_segcmd - 1; i++)
3337 {
3338 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3339
3340 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3341 return FALSE;
3342
3343 if (seg->vmaddr + seg->vmsize > maxvma)
3344 maxvma = seg->vmaddr + seg->vmsize;
3345 }
3346
3347 /* Set the size of __PAGEZERO. */
3348 commands[0].command.segment.vmsize =
3349 commands[1].command.segment.vmaddr;
3350
3351 /* Set the vma and fileoff of __LINKEDIT. */
3352 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3353 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3354
3355 /* Set entry point (once segments have been laid out). */
3356 if (main_idx >= 0)
3357 commands[main_idx].command.main.entryoff =
3358 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3359 }
7f307238 3360
154a1ee5
TG		 3361 return TRUE;
3362}
3363
3364/* Set the contents of a section. */
3365
3366bfd_boolean
3367bfd_mach_o_set_section_contents (bfd *abfd,
3368 asection *section,
3369 const void * location,
3370 file_ptr offset,
3371 bfd_size_type count)
3372{
3373 file_ptr pos;
3374
7f307238
IS		 3375 /* Trying to write the first section contents will trigger the creation of
3376 the load commands if they are not already present. */
c9ffd2ea 3377 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
154a1ee5
TG		 3378 return FALSE;
3379
3380 if (count == 0)
3381 return TRUE;
3382
3383 pos = section->filepos + offset;
3384 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3385 || bfd_bwrite (location, count, abfd) != count)
3386 return FALSE;
3387
3388 return TRUE;
3389}
3390
3391int
116c20d2 3392bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
a6b96beb 3393 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3af9a47b
NC		 3394{
3395 return 0;
3396}
3397
3398/* Make an empty symbol. This is required only because
3399 bfd_make_section_anyway wants to create a symbol for the section. */
3400
154a1ee5 3401asymbol *
116c20d2 3402bfd_mach_o_make_empty_symbol (bfd *abfd)
3af9a47b 3403{
d3ce72d0
NC		 3404 asymbol *new_symbol;
3405
3406 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3407 if (new_symbol == NULL)
3408 return new_symbol;
3409 new_symbol->the_bfd = abfd;
b22161d6 3410 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
d3ce72d0 3411 return new_symbol;
3af9a47b
NC		 3412}
3413
154a1ee5 3414static bfd_boolean
47daa70f 3415bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header)
3af9a47b 3416{
46d1c23b 3417 struct mach_o_header_external raw;
1e8a024a 3418 unsigned int size;
edeb6e24 3419 bfd_vma (*get32) (const void *) = NULL;
3af9a47b 3420
1e8a024a 3421 /* Just read the magic number. */
47daa70f 3422 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
46d1c23b 3423 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
154a1ee5 3424 return FALSE;
3af9a47b 3425
46d1c23b 3426 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b
NC		 3427 {
3428 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 3429 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a 3430 header->version = 1;
3af9a47b
NC		 3431 get32 = bfd_getb32;
3432 }
46d1c23b 3433 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b 3434 {
a95a4550 3435 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 3436 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a
TG		 3437 header->version = 1;
3438 get32 = bfd_getl32;
3439 }
46d1c23b 3440 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 3441 {
3442 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 3443 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a
TG		 3444 header->version = 2;
3445 get32 = bfd_getb32;
3446 }
46d1c23b 3447 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 3448 {
3449 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 3450 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a 3451 header->version = 2;
3af9a47b
NC		 3452 get32 = bfd_getl32;
3453 }
3454 else
3455 {
3456 header->byteorder = BFD_ENDIAN_UNKNOWN;
154a1ee5 3457 return FALSE;
3af9a47b 3458 }
a95a4550 3459
1e8a024a 3460 /* Once the size of the header is known, read the full header. */
c2f09c75 3461 size = mach_o_wide_p (header) ?
154a1ee5 3462 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1e8a024a 3463
47daa70f 3464 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
46d1c23b 3465 || bfd_bread (&raw, size, abfd) != size)
154a1ee5 3466 return FALSE;
1e8a024a 3467
46d1c23b
TG		 3468 header->cputype = (*get32) (raw.cputype);
3469 header->cpusubtype = (*get32) (raw.cpusubtype);
3470 header->filetype = (*get32) (raw.filetype);
3471 header->ncmds = (*get32) (raw.ncmds);
3472 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3473 header->flags = (*get32) (raw.flags);
3af9a47b 3474
c2f09c75 3475 if (mach_o_wide_p (header))
46d1c23b 3476 header->reserved = (*get32) (raw.reserved);
facf03f2
TG		 3477 else
3478 header->reserved = 0;
1e8a024a 3479
154a1ee5 3480 return TRUE;
3af9a47b
NC		 3481}
3482
f1bde64c
TG		 3483bfd_boolean
3484bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3485{
3486 bfd_mach_o_section *s;
a4551119 3487 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
f1bde64c
TG		 3488
3489 s = bfd_mach_o_get_mach_o_section (sec);
3490 if (s == NULL)
3491 {
3492 flagword bfd_flags;
a4551119 3493 static const mach_o_section_name_xlat * xlat;
f1bde64c
TG		 3494
3495 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3496 if (s == NULL)
3497 return FALSE;
3498 sec->used_by_bfd = s;
3499 s->bfdsection = sec;
3500
a4551119
TG		 3501 /* Create the Darwin seg/sect name pair from the bfd name.
3502 If this is a canonical name for which a specific paiting exists
3503 there will also be defined flags, type, attribute and alignment
3504 values. */
3505 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3506 if (xlat != NULL)
3507 {
3508 s->flags = xlat->macho_sectype | xlat->macho_secattr;
68ffbac6 3509 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
a4551119 3510 : bfdalign;
a253d456 3511 (void) bfd_set_section_alignment (abfd, sec, s->align);
a4551119
TG		 3512 bfd_flags = bfd_get_section_flags (abfd, sec);
3513 if (bfd_flags == SEC_NO_FLAGS)
3514 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3515 }
f1bde64c 3516 else
a4551119
TG		 3517 /* Create default flags. */
3518 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
f1bde64c
TG		 3519 }
3520
3521 return _bfd_generic_new_section_hook (abfd, sec);
3522}
3523
3524static void
3525bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
07d6d2b8 3526 unsigned long prot)
3af9a47b 3527{
117ed4f8 3528 flagword flags;
f1bde64c 3529 bfd_mach_o_section *section;
3af9a47b 3530
f1bde64c
TG		 3531 flags = bfd_get_section_flags (abfd, sec);
3532 section = bfd_mach_o_get_mach_o_section (sec);
3af9a47b 3533
a4551119
TG		 3534 /* TODO: see if we should use the xlat system for doing this by
3535 preference and fall back to this for unknown sections. */
3536
8462aec7 3537 if (flags == SEC_NO_FLAGS)
ef17cb22 3538 {
8462aec7
TG		 3539 /* Try to guess flags. */
3540 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
07d6d2b8 3541 flags = SEC_DEBUGGING;
8462aec7 3542 else
07d6d2b8
AM		 3543 {
3544 flags = SEC_ALLOC;
3545 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3546 != BFD_MACH_O_S_ZEROFILL)
3547 {
3548 flags |= SEC_LOAD;
3549 if (prot & BFD_MACH_O_PROT_EXECUTE)
3550 flags |= SEC_CODE;
3551 if (prot & BFD_MACH_O_PROT_WRITE)
3552 flags |= SEC_DATA;
3553 else if (prot & BFD_MACH_O_PROT_READ)
3554 flags |= SEC_READONLY;
3555 }
3556 }
ef17cb22 3557 }
15e1c58a
TG		 3558 else
3559 {
8462aec7 3560 if ((flags & SEC_DEBUGGING) == 0)
07d6d2b8 3561 flags |= SEC_ALLOC;
15e1c58a 3562 }
8462aec7
TG		 3563
3564 if (section->offset != 0)
3565 flags |= SEC_HAS_CONTENTS;
92bc0e80
TG		 3566 if (section->nreloc != 0)
3567 flags |= SEC_RELOC;
3568
f1bde64c
TG		 3569 bfd_set_section_flags (abfd, sec, flags);
3570
3571 sec->vma = section->addr;
3572 sec->lma = section->addr;
3573 sec->size = section->size;
3574 sec->filepos = section->offset;
3575 sec->alignment_power = section->align;
3576 sec->segment_mark = 0;
3577 sec->reloc_count = section->nreloc;
3578 sec->rel_filepos = section->reloff;
3579}
3580
3581static asection *
3582bfd_mach_o_make_bfd_section (bfd *abfd,
07d6d2b8
AM		 3583 const unsigned char *segname,
3584 const unsigned char *sectname)
f1bde64c
TG		 3585{
3586 const char *sname;
3587 flagword flags;
a95a4550 3588
f1bde64c
TG		 3589 bfd_mach_o_convert_section_name_to_bfd
3590 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3591 if (sname == NULL)
3592 return NULL;
3af9a47b 3593
f1bde64c 3594 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3af9a47b
NC		 3595}
3596
f1bde64c 3597static asection *
47daa70f 3598bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot)
3af9a47b 3599{
46d1c23b 3600 struct mach_o_section_32_external raw;
f1bde64c
TG		 3601 asection *sec;
3602 bfd_mach_o_section *section;
3af9a47b 3603
47daa70f
TG		 3604 if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3605 != BFD_MACH_O_SECTION_SIZE)
f1bde64c 3606 return NULL;
a95a4550 3607
5a5cbf72 3608 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 3609 if (sec == NULL)
3610 return NULL;
3611
3612 section = bfd_mach_o_get_mach_o_section (sec);
3613 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3614 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3615 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 3616 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 3617 section->addr = bfd_h_get_32 (abfd, raw.addr);
3618 section->size = bfd_h_get_32 (abfd, raw.size);
3619 section->offset = bfd_h_get_32 (abfd, raw.offset);
3620 section->align = bfd_h_get_32 (abfd, raw.align);
c86934ce
NC		 3621 /* PR 17512: file: 0017eb76. */
3622 if (section->align > 64)
3623 {
4eca0228 3624 _bfd_error_handler
d42c267e 3625 (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, "
4eca0228 3626 "using 32 instead"), section->align);
c86934ce
NC		 3627 section->align = 32;
3628 }
46d1c23b
TG		 3629 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3630 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3631 section->flags = bfd_h_get_32 (abfd, raw.flags);
3632 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3633 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
1e8a024a 3634 section->reserved3 = 0;
1e8a024a 3635
f1bde64c 3636 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
1e8a024a 3637
f1bde64c 3638 return sec;
1e8a024a
TG		 3639}
3640
f1bde64c 3641static asection *
47daa70f 3642bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot)
1e8a024a 3643{
46d1c23b 3644 struct mach_o_section_64_external raw;
f1bde64c
TG		 3645 asection *sec;
3646 bfd_mach_o_section *section;
1e8a024a 3647
47daa70f
TG		 3648 if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3649 != BFD_MACH_O_SECTION_64_SIZE)
f1bde64c
TG		 3650 return NULL;
3651
5a5cbf72 3652 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 3653 if (sec == NULL)
3654 return NULL;
1e8a024a 3655
f1bde64c
TG		 3656 section = bfd_mach_o_get_mach_o_section (sec);
3657 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3658 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3659 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 3660 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 3661 section->addr = bfd_h_get_64 (abfd, raw.addr);
3662 section->size = bfd_h_get_64 (abfd, raw.size);
3663 section->offset = bfd_h_get_32 (abfd, raw.offset);
3664 section->align = bfd_h_get_32 (abfd, raw.align);
c86934ce
NC		 3665 if (section->align > 64)
3666 {
4eca0228 3667 _bfd_error_handler
d42c267e 3668 (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, "
4eca0228 3669 "using 32 instead"), section->align);
c86934ce
NC		 3670 section->align = 32;
3671 }
46d1c23b
TG		 3672 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3673 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3674 section->flags = bfd_h_get_32 (abfd, raw.flags);
3675 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3676 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3677 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3af9a47b 3678
f1bde64c 3679 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3af9a47b 3680
f1bde64c 3681 return sec;
3af9a47b
NC		 3682}
3683
f1bde64c 3684static asection *
47daa70f 3685bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide)
1e8a024a
TG		 3686{
3687 if (wide)
47daa70f 3688 return bfd_mach_o_read_section_64 (abfd, prot);
1e8a024a 3689 else
47daa70f 3690 return bfd_mach_o_read_section_32 (abfd, prot);
1e8a024a
TG		 3691}
3692
afbb9e17 3693static bfd_boolean
ab273af8 3694bfd_mach_o_read_symtab_symbol (bfd *abfd,
07d6d2b8
AM		 3695 bfd_mach_o_symtab_command *sym,
3696 bfd_mach_o_asymbol *s,
3697 unsigned long i)
3af9a47b 3698{
046b007d 3699 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c2f09c75 3700 unsigned int wide = mach_o_wide_p (&mdata->header);
046b007d
TG		 3701 unsigned int symwidth =
3702 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
92bc0e80 3703 unsigned int symoff = sym->symoff + (i * symwidth);
46d1c23b 3704 struct mach_o_nlist_64_external raw;
3af9a47b
NC		 3705 unsigned char type = -1;
3706 unsigned char section = -1;
3707 short desc = -1;
1e8a024a 3708 symvalue value = -1;
3af9a47b
NC		 3709 unsigned long stroff = -1;
3710 unsigned int symtype = -1;
3711
3712 BFD_ASSERT (sym->strtab != NULL);
3713
c2f09c75 3714 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
46d1c23b 3715 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3af9a47b 3716 {
4eca0228 3717 _bfd_error_handler
695344c0 3718 /* xgettext:c-format */
07d6d2b8
AM		 3719 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"),
3720 symwidth, symoff);
afbb9e17 3721 return FALSE;
3af9a47b
NC		 3722 }
3723
46d1c23b
TG		 3724 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3725 type = bfd_h_get_8 (abfd, raw.n_type);
c2f09c75 3726 symtype = type & BFD_MACH_O_N_TYPE;
46d1c23b
TG		 3727 section = bfd_h_get_8 (abfd, raw.n_sect);
3728 desc = bfd_h_get_16 (abfd, raw.n_desc);
1e8a024a 3729 if (wide)
46d1c23b 3730 value = bfd_h_get_64 (abfd, raw.n_value);
1e8a024a 3731 else
46d1c23b 3732 value = bfd_h_get_32 (abfd, raw.n_value);
3af9a47b
NC		 3733
3734 if (stroff >= sym->strsize)
3735 {
4eca0228 3736 _bfd_error_handler
695344c0 3737 /* xgettext:c-format */
07d6d2b8
AM		 3738 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"),
3739 stroff,
3740 sym->strsize);
afbb9e17 3741 return FALSE;
3af9a47b
NC		 3742 }
3743
92bc0e80
TG		 3744 s->symbol.the_bfd = abfd;
3745 s->symbol.name = sym->strtab + stroff;
3746 s->symbol.value = value;
3747 s->symbol.flags = 0x0;
b22161d6 3748 s->symbol.udata.i = i;
92bc0e80
TG		 3749 s->n_type = type;
3750 s->n_sect = section;
3751 s->n_desc = desc;
3af9a47b
NC		 3752
3753 if (type & BFD_MACH_O_N_STAB)
3754 {
92bc0e80
TG		 3755 s->symbol.flags |= BSF_DEBUGGING;
3756 s->symbol.section = bfd_und_section_ptr;
15e1c58a
TG		 3757 switch (type)
3758 {
3759 case N_FUN:
3760 case N_STSYM:
3761 case N_LCSYM:
3762 case N_BNSYM:
3763 case N_SLINE:
3764 case N_ENSYM:
3765 case N_ECOMM:
3766 case N_ECOML:
3767 case N_GSYM:
3768 if ((section > 0) && (section <= mdata->nsects))
3769 {
92bc0e80
TG		 3770 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3771 s->symbol.value =
07d6d2b8 3772 s->symbol.value - mdata->sections[section - 1]->addr;
15e1c58a
TG		 3773 }
3774 break;
3775 }
3af9a47b
NC		 3776 }
3777 else
3778 {
b22161d6 3779 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
92bc0e80 3780 s->symbol.flags |= BSF_GLOBAL;
b22161d6 3781 else
92bc0e80 3782 s->symbol.flags |= BSF_LOCAL;
3af9a47b
NC		 3783
3784 switch (symtype)
3785 {
3786 case BFD_MACH_O_N_UNDF:
07d6d2b8
AM		 3787 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3788 && s->symbol.value != 0)
3789 {
3790 /* A common symbol. */
3791 s->symbol.section = bfd_com_section_ptr;
3792 s->symbol.flags = BSF_NO_FLAGS;
3793 }
3794 else
3795 {
3796 s->symbol.section = bfd_und_section_ptr;
3797 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3798 s->symbol.flags |= BSF_WEAK;
3799 }
3af9a47b
NC		 3800 break;
3801 case BFD_MACH_O_N_PBUD:
92bc0e80 3802 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3803 break;
3804 case BFD_MACH_O_N_ABS:
92bc0e80 3805 s->symbol.section = bfd_abs_section_ptr;
3af9a47b
NC		 3806 break;
3807 case BFD_MACH_O_N_SECT:
3808 if ((section > 0) && (section <= mdata->nsects))
3809 {
92bc0e80
TG		 3810 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3811 s->symbol.value =
07d6d2b8 3812 s->symbol.value - mdata->sections[section - 1]->addr;
3af9a47b
NC		 3813 }
3814 else
3815 {
3816 /* Mach-O uses 0 to mean "no section"; not an error. */
3817 if (section != 0)
3818 {
4eca0228 3819 _bfd_error_handler
695344c0 3820 /* xgettext:c-format */
4eca0228
AM		 3821 (_("bfd_mach_o_read_symtab_symbol: "
3822 "symbol \"%s\" specified invalid section %d (max %lu): "
3823 "setting to undefined"),
3824 s->symbol.name, section, mdata->nsects);
3af9a47b 3825 }
92bc0e80 3826 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3827 }
3828 break;
3829 case BFD_MACH_O_N_INDR:
0596a831
TG		 3830 /* FIXME: we don't follow the BFD convention as this indirect symbol
3831 won't be followed by the referenced one. This looks harmless
3832 unless we start using the linker. */
3833 s->symbol.flags |= BSF_INDIRECT;
3834 s->symbol.section = bfd_ind_section_ptr;
3835 s->symbol.value = 0;
3af9a47b
NC		 3836 break;
3837 default:
4eca0228 3838 _bfd_error_handler
695344c0 3839 /* xgettext:c-format */
4eca0228
AM		 3840 (_("bfd_mach_o_read_symtab_symbol: "
3841 "symbol \"%s\" specified invalid type field 0x%x: "
3842 "setting to undefined"), s->symbol.name, symtype);
92bc0e80 3843 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 3844 break;
3845 }
3846 }
3847
afbb9e17 3848 return TRUE;
3af9a47b
NC		 3849}
3850
c5012cd8 3851bfd_boolean
ab273af8 3852bfd_mach_o_read_symtab_strtab (bfd *abfd)
3af9a47b 3853{
046b007d
TG		 3854 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3855 bfd_mach_o_symtab_command *sym = mdata->symtab;
3856
3857 /* Fail if there is no symtab. */
3858 if (sym == NULL)
afbb9e17 3859 return FALSE;
046b007d
TG		 3860
3861 /* Success if already loaded. */
3862 if (sym->strtab)
afbb9e17 3863 return TRUE;
3af9a47b
NC		 3864
3865 if (abfd->flags & BFD_IN_MEMORY)
3866 {
3867 struct bfd_in_memory *b;
3868
3869 b = (struct bfd_in_memory *) abfd->iostream;
3870
3871 if ((sym->stroff + sym->strsize) > b->size)
3872 {
3873 bfd_set_error (bfd_error_file_truncated);
afbb9e17 3874 return FALSE;
3af9a47b 3875 }
f075ee0c 3876 sym->strtab = (char *) b->buffer + sym->stroff;
3af9a47b 3877 }
046b007d 3878 else
3af9a47b 3879 {
8bdf0be1
NC		 3880 /* See PR 21840 for a reproducer. */
3881 if ((sym->strsize + 1) == 0)
3882 return FALSE;
e7287c7f 3883 sym->strtab = bfd_alloc (abfd, sym->strsize + 1);
046b007d 3884 if (sym->strtab == NULL)
07d6d2b8 3885 return FALSE;
046b007d
TG		 3886
3887 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
07d6d2b8
AM		 3888 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3889 {
a1165289
NC		 3890 /* PR 17512: file: 10888-1609-0.004. */
3891 bfd_release (abfd, sym->strtab);
3892 sym->strtab = NULL;
07d6d2b8
AM		 3893 bfd_set_error (bfd_error_file_truncated);
3894 return FALSE;
3895 }
e7287c7f
NC		 3896 /* Zero terminate the string table. */
3897 sym->strtab[sym->strsize] = 0;
3af9a47b
NC		 3898 }
3899
afbb9e17 3900 return TRUE;
3af9a47b
NC		 3901}
3902
c5012cd8 3903bfd_boolean
ab273af8 3904bfd_mach_o_read_symtab_symbols (bfd *abfd)
3af9a47b 3905{
046b007d
TG		 3906 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3907 bfd_mach_o_symtab_command *sym = mdata->symtab;
3af9a47b 3908 unsigned long i;
3af9a47b 3909
092d27ff 3910 if (sym == NULL || sym->symbols)
0a9d414a
NC		 3911 /* Return now if there are no symbols or if already loaded. */
3912 return TRUE;
046b007d 3913
64d29018 3914 sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol));
3af9a47b
NC		 3915 if (sym->symbols == NULL)
3916 {
4eca0228
AM		 3917 _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: "
3918 "unable to allocate memory for symbols"));
64d29018 3919 sym->nsyms = 0;
afbb9e17 3920 return FALSE;
3af9a47b 3921 }
a95a4550 3922
afbb9e17 3923 if (!bfd_mach_o_read_symtab_strtab (abfd))
64d29018 3924 goto fail;
3af9a47b
NC		 3925
3926 for (i = 0; i < sym->nsyms; i++)
64d29018
NC		 3927 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3928 goto fail;
a95a4550 3929
afbb9e17 3930 return TRUE;
64d29018
NC		 3931
3932 fail:
3933 bfd_release (abfd, sym->symbols);
3934 sym->symbols = NULL;
3935 sym->nsyms = 0;
3936 return FALSE;
3af9a47b
NC		 3937}
3938
3939static const char *
116c20d2 3940bfd_mach_o_i386_flavour_string (unsigned int flavour)
3af9a47b
NC		 3941{
3942 switch ((int) flavour)
3943 {
15e1c58a
TG		 3944 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3945 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3946 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3947 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3948 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3949 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3950 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3951 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3952 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3953 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3954 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3955 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
b32e07d7 3956 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3af9a47b
NC		 3957 default: return "UNKNOWN";
3958 }
3959}
3960
3961static const char *
116c20d2 3962bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3af9a47b
NC		 3963{
3964 switch ((int) flavour)
3965 {
b32e07d7
TG		 3966 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3967 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3968 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3969 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3970 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3971 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3af9a47b
NC		 3972 default: return "UNKNOWN";
3973 }
3974}
3975
452216ab 3976static bfd_boolean
ab273af8 3977bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 3978{
3979 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
46d1c23b 3980 struct mach_o_str_command_external raw;
3af9a47b 3981 unsigned int nameoff;
4525c51a 3982 unsigned int namelen;
3af9a47b 3983
47daa70f 3984 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 3985 return FALSE;
3af9a47b 3986
46d1c23b 3987 nameoff = bfd_h_get_32 (abfd, raw.str);
3af9a47b 3988
4525c51a
TG		 3989 cmd->name_offset = nameoff;
3990 namelen = command->len - nameoff;
3991 nameoff += command->offset;
3992 cmd->name_str = bfd_alloc (abfd, namelen);
b32e07d7 3993 if (cmd->name_str == NULL)
452216ab 3994 return FALSE;
4525c51a
TG		 3995 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3996 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
452216ab
TG		 3997 return FALSE;
3998 return TRUE;
3af9a47b
NC		 3999}
4000
452216ab 4001static bfd_boolean
ab273af8 4002bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4003{
47daa70f 4004 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 4005 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
46d1c23b 4006 struct mach_o_dylib_command_external raw;
3af9a47b 4007 unsigned int nameoff;
4525c51a 4008 unsigned int namelen;
3af9a47b 4009
046b007d
TG		 4010 switch (command->type)
4011 {
4012 case BFD_MACH_O_LC_LOAD_DYLIB:
fbe383b9 4013 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
046b007d 4014 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 4015 case BFD_MACH_O_LC_ID_DYLIB:
046b007d 4016 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 4017 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
046b007d
TG		 4018 break;
4019 default:
b32e07d7 4020 BFD_FAIL ();
452216ab 4021 return FALSE;
046b007d 4022 }
3af9a47b 4023
47daa70f 4024 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4025 return FALSE;
3af9a47b 4026
46d1c23b
TG		 4027 nameoff = bfd_h_get_32 (abfd, raw.name);
4028 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
4029 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
4030 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3af9a47b
NC		 4031
4032 cmd->name_offset = command->offset + nameoff;
4525c51a
TG		 4033 namelen = command->len - nameoff;
4034 cmd->name_str = bfd_alloc (abfd, namelen);
b32e07d7 4035 if (cmd->name_str == NULL)
452216ab 4036 return FALSE;
47daa70f 4037 if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0
4525c51a 4038 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
452216ab
TG		 4039 return FALSE;
4040 return TRUE;
3af9a47b
NC		 4041}
4042
452216ab 4043static bfd_boolean
7a79c514 4044bfd_mach_o_read_prebound_dylib (bfd *abfd,
07d6d2b8 4045 bfd_mach_o_load_command *command)
3af9a47b 4046{
7a79c514
TG		 4047 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
4048 struct mach_o_prebound_dylib_command_external raw;
4049 unsigned int nameoff;
4050 unsigned int modoff;
4051 unsigned int str_len;
4052 unsigned char *str;
4053
47daa70f 4054 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4055 return FALSE;
7a79c514
TG		 4056
4057 nameoff = bfd_h_get_32 (abfd, raw.name);
4058 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
4059 if (nameoff > command->len || modoff > command->len)
452216ab 4060 return FALSE;
7a79c514
TG		 4061
4062 str_len = command->len - sizeof (raw);
4063 str = bfd_alloc (abfd, str_len);
4064 if (str == NULL)
452216ab 4065 return FALSE;
7a79c514 4066 if (bfd_bread (str, str_len, abfd) != str_len)
452216ab 4067 return FALSE;
7a79c514
TG		 4068
4069 cmd->name_offset = command->offset + nameoff;
4070 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
4071 cmd->linked_modules_offset = command->offset + modoff;
4072
4073 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
4074 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
452216ab 4075 return TRUE;
7a79c514
TG		 4076}
4077
452216ab 4078static bfd_boolean
7a79c514
TG		 4079bfd_mach_o_read_prebind_cksum (bfd *abfd,
4080 bfd_mach_o_load_command *command)
4081{
4082 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
4083 struct mach_o_prebind_cksum_command_external raw;
3af9a47b 4084
47daa70f 4085 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4086 return FALSE;
7a79c514
TG		 4087
4088 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
452216ab 4089 return TRUE;
7a79c514
TG		 4090}
4091
452216ab 4092static bfd_boolean
7a79c514
TG		 4093bfd_mach_o_read_twolevel_hints (bfd *abfd,
4094 bfd_mach_o_load_command *command)
4095{
4096 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
4097 struct mach_o_twolevel_hints_command_external raw;
4098
47daa70f 4099 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4100 return FALSE;
7a79c514
TG		 4101
4102 cmd->offset = bfd_get_32 (abfd, raw.offset);
4103 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
452216ab 4104 return TRUE;
3af9a47b
NC		 4105}
4106
452216ab 4107static bfd_boolean
9f4a5bd1
TG		 4108bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
4109{
4110 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
4111 struct mach_o_fvmlib_command_external raw;
4112 unsigned int nameoff;
4525c51a 4113 unsigned int namelen;
9f4a5bd1 4114
47daa70f 4115 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4116 return FALSE;
9f4a5bd1
TG		 4117
4118 nameoff = bfd_h_get_32 (abfd, raw.name);
4119 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
4120 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
4121
4122 fvm->name_offset = command->offset + nameoff;
4525c51a
TG		 4123 namelen = command->len - nameoff;
4124 fvm->name_str = bfd_alloc (abfd, namelen);
9f4a5bd1 4125 if (fvm->name_str == NULL)
452216ab 4126 return FALSE;
9f4a5bd1 4127 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
4525c51a 4128 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
452216ab
TG		 4129 return FALSE;
4130 return TRUE;
9f4a5bd1
TG		 4131}
4132
452216ab 4133static bfd_boolean
ab273af8 4134bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4135{
b32e07d7 4136 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 4137 bfd_mach_o_thread_command *cmd = &command->command.thread;
92bc0e80 4138 unsigned int offset;
3af9a47b
NC		 4139 unsigned int nflavours;
4140 unsigned int i;
4141
4142 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
4143 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
4144
b32e07d7 4145 /* Count the number of threads. */
3af9a47b
NC		 4146 offset = 8;
4147 nflavours = 0;
4148 while (offset != command->len)
4149 {
46d1c23b
TG		 4150 struct mach_o_thread_command_external raw;
4151
3af9a47b 4152 if (offset >= command->len)
452216ab 4153 return FALSE;
3af9a47b 4154
c2f09c75 4155 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
07d6d2b8 4156 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4157 return FALSE;
3af9a47b 4158
46d1c23b 4159 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3af9a47b
NC		 4160 nflavours++;
4161 }
4162
b32e07d7 4163 /* Allocate threads. */
64d29018
NC		 4164 cmd->flavours = bfd_alloc2
4165 (abfd, nflavours, sizeof (bfd_mach_o_thread_flavour));
3af9a47b 4166 if (cmd->flavours == NULL)
452216ab 4167 return FALSE;
3af9a47b
NC		 4168 cmd->nflavours = nflavours;
4169
4170 offset = 8;
4171 nflavours = 0;
4172 while (offset != command->len)
4173 {
46d1c23b
TG		 4174 struct mach_o_thread_command_external raw;
4175
3af9a47b 4176 if (offset >= command->len)
452216ab 4177 return FALSE;
3af9a47b
NC		 4178
4179 if (nflavours >= cmd->nflavours)
452216ab 4180 return FALSE;
3af9a47b 4181
c2f09c75 4182 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
07d6d2b8 4183 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4184 return FALSE;
3af9a47b 4185
46d1c23b
TG		 4186 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
4187 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
4188 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
4189 offset += cmd->flavours[nflavours].size + sizeof (raw);
3af9a47b
NC		 4190 nflavours++;
4191 }
4192
4193 for (i = 0; i < nflavours; i++)
4194 {
4195 asection *bfdsec;
4196 unsigned int snamelen;
4197 char *sname;
4198 const char *flavourstr;
4199 const char *prefix = "LC_THREAD";
a95a4550
AM		 4200 unsigned int j = 0;
4201
3af9a47b
NC		 4202 switch (mdata->header.cputype)
4203 {
4204 case BFD_MACH_O_CPU_TYPE_POWERPC:
1e8a024a 4205 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
707e555b
TG		 4206 flavourstr =
4207 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3af9a47b
NC		 4208 break;
4209 case BFD_MACH_O_CPU_TYPE_I386:
1e8a024a 4210 case BFD_MACH_O_CPU_TYPE_X86_64:
707e555b
TG		 4211 flavourstr =
4212 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3af9a47b
NC		 4213 break;
4214 default:
4215 flavourstr = "UNKNOWN_ARCHITECTURE";
4216 break;
4217 }
a95a4550 4218
3af9a47b 4219 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
116c20d2 4220 sname = bfd_alloc (abfd, snamelen);
3af9a47b 4221 if (sname == NULL)
452216ab 4222 return FALSE;
3af9a47b
NC		 4223
4224 for (;;)
4225 {
a95a4550
AM		 4226 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4227 if (bfd_get_section_by_name (abfd, sname) == NULL)
3af9a47b 4228 break;
a95a4550 4229 j++;
3af9a47b
NC		 4230 }
4231
117ed4f8 4232 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
a95a4550 4233
3af9a47b
NC		 4234 bfdsec->vma = 0;
4235 bfdsec->lma = 0;
eea6121a 4236 bfdsec->size = cmd->flavours[i].size;
3af9a47b
NC		 4237 bfdsec->filepos = cmd->flavours[i].offset;
4238 bfdsec->alignment_power = 0x0;
3af9a47b
NC		 4239
4240 cmd->section = bfdsec;
4241 }
4242
452216ab 4243 return TRUE;
3af9a47b
NC		 4244}
4245
452216ab 4246static bfd_boolean
ab273af8 4247bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4248{
046b007d 4249 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
b32e07d7 4250 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 4251
4252 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4253
46d1c23b
TG		 4254 {
4255 struct mach_o_dysymtab_command_external raw;
4256
47daa70f 4257 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4258 return FALSE;
3af9a47b 4259
46d1c23b
TG		 4260 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4261 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4262 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4263 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4264 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4265 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4266 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4267 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4268 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4269 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4270 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4271 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4272 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4273 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4274 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4275 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4276 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4277 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4278 }
046b007d
TG		 4279
4280 if (cmd->nmodtab != 0)
4281 {
046b007d
TG		 4282 unsigned int i;
4283 int wide = bfd_mach_o_wide_p (abfd);
4284 unsigned int module_len = wide ? 56 : 52;
4285
4286 cmd->dylib_module =
07d6d2b8 4287 bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module));
046b007d 4288 if (cmd->dylib_module == NULL)
07d6d2b8 4289 return FALSE;
046b007d
TG		 4290
4291 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
07d6d2b8 4292 return FALSE;
046b007d
TG		 4293
4294 for (i = 0; i < cmd->nmodtab; i++)
07d6d2b8
AM		 4295 {
4296 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4297 unsigned long v;
4298 unsigned char buf[56];
4299
4300 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4301 return FALSE;
4302
4303 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4304 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4305 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4306 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4307 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4308 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4309 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4310 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4311 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4312 v = bfd_h_get_32 (abfd, buf +36);
4313 module->iinit = v & 0xffff;
4314 module->iterm = (v >> 16) & 0xffff;
4315 v = bfd_h_get_32 (abfd, buf + 40);
4316 module->ninit = v & 0xffff;
4317 module->nterm = (v >> 16) & 0xffff;
4318 if (wide)
4319 {
4320 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4321 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4322 }
4323 else
4324 {
4325 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4326 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4327 }
4328 }
046b007d 4329 }
afbb9e17 4330
046b007d
TG		 4331 if (cmd->ntoc != 0)
4332 {
64d29018 4333 unsigned long i;
046b007d 4334
64d29018 4335 cmd->dylib_toc = bfd_alloc2
07d6d2b8 4336 (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content));
046b007d 4337 if (cmd->dylib_toc == NULL)
07d6d2b8 4338 return FALSE;
046b007d
TG		 4339
4340 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
07d6d2b8 4341 return FALSE;
046b007d
TG		 4342
4343 for (i = 0; i < cmd->ntoc; i++)
07d6d2b8
AM		 4344 {
4345 struct mach_o_dylib_table_of_contents_external raw;
4346 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
046b007d 4347
07d6d2b8
AM		 4348 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4349 return FALSE;
046b007d 4350
07d6d2b8
AM		 4351 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4352 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4353 }
046b007d
TG		 4354 }
4355
4356 if (cmd->nindirectsyms != 0)
4357 {
046b007d
TG		 4358 unsigned int i;
4359
64d29018 4360 cmd->indirect_syms = bfd_alloc2
07d6d2b8 4361 (abfd, cmd->nindirectsyms, sizeof (unsigned int));
046b007d 4362 if (cmd->indirect_syms == NULL)
07d6d2b8 4363 return FALSE;
046b007d
TG		 4364
4365 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
07d6d2b8 4366 return FALSE;
046b007d
TG		 4367
4368 for (i = 0; i < cmd->nindirectsyms; i++)
07d6d2b8
AM		 4369 {
4370 unsigned char raw[4];
4371 unsigned int *is = &cmd->indirect_syms[i];
046b007d 4372
07d6d2b8
AM		 4373 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4374 return FALSE;
046b007d 4375
07d6d2b8
AM		 4376 *is = bfd_h_get_32 (abfd, raw);
4377 }
046b007d
TG		 4378 }
4379
4380 if (cmd->nextrefsyms != 0)
4381 {
046b007d
TG		 4382 unsigned long v;
4383 unsigned int i;
4384
64d29018 4385 cmd->ext_refs = bfd_alloc2
07d6d2b8 4386 (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference));
046b007d 4387 if (cmd->ext_refs == NULL)
07d6d2b8 4388 return FALSE;
046b007d
TG		 4389
4390 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
07d6d2b8 4391 return FALSE;
046b007d
TG		 4392
4393 for (i = 0; i < cmd->nextrefsyms; i++)
07d6d2b8
AM		 4394 {
4395 unsigned char raw[4];
4396 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4397
4398 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4399 return FALSE;
4400
4401 /* Fields isym and flags are written as bit-fields, thus we need
4402 a specific processing for endianness. */
4403 v = bfd_h_get_32 (abfd, raw);
4404 if (bfd_big_endian (abfd))
4405 {
4406 ref->isym = (v >> 8) & 0xffffff;
4407 ref->flags = v & 0xff;
4408 }
4409 else
4410 {
4411 ref->isym = v & 0xffffff;
4412 ref->flags = (v >> 24) & 0xff;
4413 }
4414 }
046b007d 4415 }
3af9a47b 4416
b32e07d7 4417 if (mdata->dysymtab)
452216ab 4418 return FALSE;
b32e07d7
TG		 4419 mdata->dysymtab = cmd;
4420
452216ab 4421 return TRUE;
3af9a47b
NC		 4422}
4423
452216ab 4424static bfd_boolean
ab273af8 4425bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4426{
046b007d
TG		 4427 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4428 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
46d1c23b 4429 struct mach_o_symtab_command_external raw;
3af9a47b
NC		 4430
4431 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4432
47daa70f 4433 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4434 return FALSE;
a95a4550 4435
46d1c23b
TG		 4436 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4437 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4438 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4439 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
046b007d
TG		 4440 symtab->symbols = NULL;
4441 symtab->strtab = NULL;
3af9a47b 4442
046b007d 4443 if (symtab->nsyms != 0)
15e1c58a
TG		 4444 abfd->flags |= HAS_SYMS;
4445
046b007d 4446 if (mdata->symtab)
452216ab 4447 return FALSE;
046b007d 4448 mdata->symtab = symtab;
452216ab 4449 return TRUE;
3af9a47b
NC		 4450}
4451
452216ab 4452static bfd_boolean
ab273af8 4453bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
15e1c58a
TG		 4454{
4455 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
15e1c58a
TG		 4456
4457 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4458
47daa70f 4459 if (bfd_bread (cmd->uuid, 16, abfd) != 16)
452216ab 4460 return FALSE;
15e1c58a 4461
452216ab 4462 return TRUE;
15e1c58a
TG		 4463}
4464
452216ab 4465static bfd_boolean
ab273af8 4466bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 4467{
4468 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
46d1c23b 4469 struct mach_o_linkedit_data_command_external raw;
046b007d 4470
47daa70f 4471 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4472 return FALSE;
046b007d 4473
46d1c23b
TG		 4474 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4475 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
452216ab 4476 return TRUE;
046b007d
TG		 4477}
4478
452216ab 4479static bfd_boolean
ab273af8 4480bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 4481{
4482 bfd_mach_o_str_command *cmd = &command->command.str;
46d1c23b 4483 struct mach_o_str_command_external raw;
046b007d
TG		 4484 unsigned long off;
4485
47daa70f 4486 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4487 return FALSE;
046b007d 4488
46d1c23b 4489 off = bfd_get_32 (abfd, raw.str);
046b007d
TG		 4490 cmd->stroff = command->offset + off;
4491 cmd->str_len = command->len - off;
4492 cmd->str = bfd_alloc (abfd, cmd->str_len);
4493 if (cmd->str == NULL)
452216ab 4494 return FALSE;
046b007d 4495 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
91d6fa6a 4496 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
452216ab
TG		 4497 return FALSE;
4498 return TRUE;
046b007d
TG		 4499}
4500
c9ffd2ea
TG		 4501static unsigned char *
4502bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4503{
4504 unsigned char *buf;
4505
4506 buf = bfd_alloc (abfd, size);
4507 if (buf == NULL)
4508 return NULL;
4509 if (bfd_seek (abfd, off, SEEK_SET) != 0
4510 || bfd_bread (buf, size, abfd) != size)
4511 return NULL;
4512 return buf;
4513}
4514
4515static bfd_boolean
4516bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4517{
4518 /* Read rebase content. */
4519 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4520 {
4521 cmd->rebase_content =
4522 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4523 if (cmd->rebase_content == NULL)
4524 return FALSE;
4525 }
4526
4527 /* Read bind content. */
4528 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4529 {
4530 cmd->bind_content =
4531 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4532 if (cmd->bind_content == NULL)
4533 return FALSE;
4534 }
4535
4536 /* Read weak bind content. */
4537 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4538 {
4539 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4540 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4541 if (cmd->weak_bind_content == NULL)
4542 return FALSE;
4543 }
4544
4545 /* Read lazy bind content. */
4546 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4547 {
4548 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4549 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4550 if (cmd->lazy_bind_content == NULL)
4551 return FALSE;
4552 }
4553
4554 /* Read export content. */
4555 if (cmd->export_content == NULL && cmd->export_size != 0)
4556 {
4557 cmd->export_content = bfd_mach_o_alloc_and_read
4558 (abfd, cmd->export_off, cmd->export_size);
4559 if (cmd->export_content == NULL)
4560 return FALSE;
4561 }
4562
4563 return TRUE;
4564}
4565
452216ab 4566static bfd_boolean
ab273af8 4567bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
ad86f1fb
TG		 4568{
4569 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
46d1c23b 4570 struct mach_o_dyld_info_command_external raw;
ad86f1fb 4571
47daa70f 4572 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
452216ab 4573 return FALSE;
ad86f1fb 4574
46d1c23b
TG		 4575 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4576 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
c9ffd2ea 4577 cmd->rebase_content = NULL;
46d1c23b
TG		 4578 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4579 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
c9ffd2ea 4580 cmd->bind_content = NULL;
46d1c23b
TG		 4581 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4582 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
c9ffd2ea 4583 cmd->weak_bind_content = NULL;
46d1c23b
TG		 4584 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4585 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
c9ffd2ea 4586 cmd->lazy_bind_content = NULL;
46d1c23b
TG		 4587 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4588 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
c9ffd2ea 4589 cmd->export_content = NULL;
452216ab 4590 return TRUE;
ad86f1fb
TG		 4591}
4592
edbdea0e
TG		 4593static bfd_boolean
4594bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4595{
4596 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4597 struct mach_o_version_min_command_external raw;
4598 unsigned int ver;
4599
47daa70f 4600 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
edbdea0e
TG		 4601 return FALSE;
4602
4603 ver = bfd_get_32 (abfd, raw.version);
4604 cmd->rel = ver >> 16;
4605 cmd->maj = ver >> 8;
4606 cmd->min = ver;
4607 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4608 return TRUE;
4609}
4610
fc55a902
TG		 4611static bfd_boolean
4612bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4613{
4614 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4615 struct mach_o_encryption_info_command_external raw;
4616
47daa70f
TG		 4617 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4618 return FALSE;
4619
4620 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4621 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4622 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4623 return TRUE;
4624}
4625
4626static bfd_boolean
4627bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command)
4628{
4629 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4630 struct mach_o_encryption_info_64_command_external raw;
4631
4632 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
fc55a902
TG		 4633 return FALSE;
4634
4635 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4636 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4637 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4638 return TRUE;
4639}
4640
1778ad74
TG		 4641static bfd_boolean
4642bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4643{
4644 bfd_mach_o_main_command *cmd = &command->command.main;
4645 struct mach_o_entry_point_command_external raw;
4646
47daa70f 4647 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
1778ad74
TG		 4648 return FALSE;
4649
4650 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4651 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4652 return TRUE;
4653}
4654
4655static bfd_boolean
4656bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4657{
4658 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4659 struct mach_o_source_version_command_external raw;
4660 bfd_uint64_t ver;
4661
47daa70f 4662 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
1778ad74
TG		 4663 return FALSE;
4664
4665 ver = bfd_get_64 (abfd, raw.version);
4666 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4667 generates warnings) in case of the host doesn't support 64 bit
4668 integers. */
4669 cmd->e = ver & 0x3ff;
4670 ver >>= 10;
4671 cmd->d = ver & 0x3ff;
4672 ver >>= 10;
4673 cmd->c = ver & 0x3ff;
4674 ver >>= 10;
4675 cmd->b = ver & 0x3ff;
4676 ver >>= 10;
4677 cmd->a = ver & 0xffffff;
4678 return TRUE;
4679}
4680
452216ab 4681static bfd_boolean
ab273af8 4682bfd_mach_o_read_segment (bfd *abfd,
07d6d2b8
AM		 4683 bfd_mach_o_load_command *command,
4684 unsigned int wide)
3af9a47b 4685{
3af9a47b
NC		 4686 bfd_mach_o_segment_command *seg = &command->command.segment;
4687 unsigned long i;
a95a4550 4688
1e8a024a
TG		 4689 if (wide)
4690 {
46d1c23b
TG		 4691 struct mach_o_segment_command_64_external raw;
4692
1e8a024a 4693 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
3af9a47b 4694
47daa70f 4695 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
07d6d2b8 4696 return FALSE;
3af9a47b 4697
46d1c23b 4698 memcpy (seg->segname, raw.segname, 16);
15e1c58a 4699 seg->segname[16] = '\0';
1e8a024a 4700
46d1c23b
TG		 4701 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4702 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4703 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4704 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4705 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4706 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4707 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4708 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a
TG		 4709 }
4710 else
4711 {
46d1c23b
TG		 4712 struct mach_o_segment_command_32_external raw;
4713
1e8a024a
TG		 4714 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4715
47daa70f 4716 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
07d6d2b8 4717 return FALSE;
1e8a024a 4718
46d1c23b 4719 memcpy (seg->segname, raw.segname, 16);
15e1c58a 4720 seg->segname[16] = '\0';
1e8a024a 4721
46d1c23b
TG		 4722 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4723 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4724 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4725 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4726 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4727 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4728 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4729 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a 4730 }
9d4b6009
TG		 4731 seg->sect_head = NULL;
4732 seg->sect_tail = NULL;
3af9a47b 4733
f1bde64c 4734 for (i = 0; i < seg->nsects; i++)
3af9a47b 4735 {
f1bde64c 4736 asection *sec;
a95a4550 4737
47daa70f 4738 sec = bfd_mach_o_read_section (abfd, seg->initprot, wide);
f1bde64c 4739 if (sec == NULL)
07d6d2b8 4740 return FALSE;
f1bde64c 4741
c9ffd2ea
TG		 4742 bfd_mach_o_append_section_to_segment
4743 (seg, bfd_mach_o_get_mach_o_section (sec));
3af9a47b
NC		 4744 }
4745
452216ab 4746 return TRUE;
3af9a47b
NC		 4747}
4748
452216ab 4749static bfd_boolean
ab273af8 4750bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 4751{
ab273af8 4752 return bfd_mach_o_read_segment (abfd, command, 0);
1e8a024a
TG		 4753}
4754
452216ab 4755static bfd_boolean
ab273af8 4756bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 4757{
ab273af8 4758 return bfd_mach_o_read_segment (abfd, command, 1);
1e8a024a
TG		 4759}
4760
452216ab 4761static bfd_boolean
ab273af8 4762bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 4763{
47daa70f 4764 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
46d1c23b
TG		 4765 struct mach_o_load_command_external raw;
4766 unsigned int cmd;
3af9a47b 4767
046b007d 4768 /* Read command type and length. */
47daa70f 4769 if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0
46d1c23b 4770 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
452216ab 4771 return FALSE;
3af9a47b 4772
46d1c23b
TG		 4773 cmd = bfd_h_get_32 (abfd, raw.cmd);
4774 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4775 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4776 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
3af9a47b
NC		 4777
4778 switch (command->type)
4779 {
4780 case BFD_MACH_O_LC_SEGMENT:
452216ab
TG		 4781 if (!bfd_mach_o_read_segment_32 (abfd, command))
4782 return FALSE;
1e8a024a
TG		 4783 break;
4784 case BFD_MACH_O_LC_SEGMENT_64:
452216ab
TG		 4785 if (!bfd_mach_o_read_segment_64 (abfd, command))
4786 return FALSE;
3af9a47b
NC		 4787 break;
4788 case BFD_MACH_O_LC_SYMTAB:
452216ab
TG		 4789 if (!bfd_mach_o_read_symtab (abfd, command))
4790 return FALSE;
3af9a47b
NC		 4791 break;
4792 case BFD_MACH_O_LC_SYMSEG:
4793 break;
4794 case BFD_MACH_O_LC_THREAD:
4795 case BFD_MACH_O_LC_UNIXTHREAD:
452216ab
TG		 4796 if (!bfd_mach_o_read_thread (abfd, command))
4797 return FALSE;
3af9a47b
NC		 4798 break;
4799 case BFD_MACH_O_LC_LOAD_DYLINKER:
4800 case BFD_MACH_O_LC_ID_DYLINKER:
10be66a4 4801 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
452216ab
TG		 4802 if (!bfd_mach_o_read_dylinker (abfd, command))
4803 return FALSE;
3af9a47b
NC		 4804 break;
4805 case BFD_MACH_O_LC_LOAD_DYLIB:
fbe383b9 4806 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3af9a47b
NC		 4807 case BFD_MACH_O_LC_ID_DYLIB:
4808 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 4809 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 4810 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
452216ab
TG		 4811 if (!bfd_mach_o_read_dylib (abfd, command))
4812 return FALSE;
3af9a47b
NC		 4813 break;
4814 case BFD_MACH_O_LC_PREBOUND_DYLIB:
452216ab
TG		 4815 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4816 return FALSE;
3af9a47b
NC		 4817 break;
4818 case BFD_MACH_O_LC_LOADFVMLIB:
4819 case BFD_MACH_O_LC_IDFVMLIB:
452216ab
TG		 4820 if (!bfd_mach_o_read_fvmlib (abfd, command))
4821 return FALSE;
9f4a5bd1 4822 break;
3af9a47b
NC		 4823 case BFD_MACH_O_LC_IDENT:
4824 case BFD_MACH_O_LC_FVMFILE:
4825 case BFD_MACH_O_LC_PREPAGE:
4826 case BFD_MACH_O_LC_ROUTINES:
9b02d212 4827 case BFD_MACH_O_LC_ROUTINES_64:
046b007d 4828 break;
3af9a47b 4829 case BFD_MACH_O_LC_SUB_FRAMEWORK:
046b007d
TG		 4830 case BFD_MACH_O_LC_SUB_UMBRELLA:
4831 case BFD_MACH_O_LC_SUB_LIBRARY:
4832 case BFD_MACH_O_LC_SUB_CLIENT:
0c9b2b4c 4833 case BFD_MACH_O_LC_RPATH:
452216ab 4834 if (!bfd_mach_o_read_str (abfd, command))
07d6d2b8 4835 return FALSE;
3af9a47b
NC		 4836 break;
4837 case BFD_MACH_O_LC_DYSYMTAB:
452216ab
TG		 4838 if (!bfd_mach_o_read_dysymtab (abfd, command))
4839 return FALSE;
3af9a47b 4840 break;
3af9a47b 4841 case BFD_MACH_O_LC_PREBIND_CKSUM:
452216ab
TG		 4842 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4843 return FALSE;
7a79c514
TG		 4844 break;
4845 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
452216ab
TG		 4846 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4847 return FALSE;
3af9a47b 4848 break;
15e1c58a 4849 case BFD_MACH_O_LC_UUID:
452216ab
TG		 4850 if (!bfd_mach_o_read_uuid (abfd, command))
4851 return FALSE;
15e1c58a
TG		 4852 break;
4853 case BFD_MACH_O_LC_CODE_SIGNATURE:
846b9259 4854 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
edbdea0e 4855 case BFD_MACH_O_LC_FUNCTION_STARTS:
1778ad74
TG		 4856 case BFD_MACH_O_LC_DATA_IN_CODE:
4857 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
47daa70f 4858 case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT:
452216ab
TG		 4859 if (!bfd_mach_o_read_linkedit (abfd, command))
4860 return FALSE;
15e1c58a 4861 break;
fc55a902
TG		 4862 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4863 if (!bfd_mach_o_read_encryption_info (abfd, command))
452216ab 4864 return FALSE;
fc55a902 4865 break;
47daa70f
TG		 4866 case BFD_MACH_O_LC_ENCRYPTION_INFO_64:
4867 if (!bfd_mach_o_read_encryption_info_64 (abfd, command))
4868 return FALSE;
4869 break;
ad86f1fb 4870 case BFD_MACH_O_LC_DYLD_INFO:
452216ab
TG		 4871 if (!bfd_mach_o_read_dyld_info (abfd, command))
4872 return FALSE;
ad86f1fb 4873 break;
edbdea0e
TG		 4874 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4875 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
47daa70f 4876 case BFD_MACH_O_LC_VERSION_MIN_WATCHOS:
edbdea0e 4877 if (!bfd_mach_o_read_version_min (abfd, command))
452216ab 4878 return FALSE;
edbdea0e 4879 break;
1778ad74
TG		 4880 case BFD_MACH_O_LC_MAIN:
4881 if (!bfd_mach_o_read_main (abfd, command))
452216ab 4882 return FALSE;
1778ad74
TG		 4883 break;
4884 case BFD_MACH_O_LC_SOURCE_VERSION:
4885 if (!bfd_mach_o_read_source_version (abfd, command))
452216ab 4886 return FALSE;
1778ad74 4887 break;
3af9a47b 4888 default:
86eafac0 4889 command->len = 0;
871b3ab2 4890 _bfd_error_handler (_("%pB: unknown load command %#x"),
d42c267e 4891 abfd, command->type);
86eafac0 4892 return FALSE;
3af9a47b
NC		 4893 }
4894
452216ab 4895 return TRUE;
3af9a47b
NC		 4896}
4897
4898static void
116c20d2 4899bfd_mach_o_flatten_sections (bfd *abfd)
3af9a47b 4900{
046b007d 4901 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea 4902 bfd_mach_o_load_command *cmd;
3af9a47b 4903 long csect = 0;
a95a4550 4904
15e1c58a 4905 /* Count total number of sections. */
3af9a47b
NC		 4906 mdata->nsects = 0;
4907
c9ffd2ea 4908 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 4909 {
c9ffd2ea
TG		 4910 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4911 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 4912 {
c9ffd2ea 4913 bfd_mach_o_segment_command *seg = &cmd->command.segment;
e84d6fca 4914
3af9a47b
NC		 4915 mdata->nsects += seg->nsects;
4916 }
4917 }
4918
15e1c58a 4919 /* Allocate sections array. */
64d29018
NC		 4920 mdata->sections = bfd_alloc2 (abfd,
4921 mdata->nsects, sizeof (bfd_mach_o_section *));
15e1c58a
TG		 4922
4923 /* Fill the array. */
3af9a47b
NC		 4924 csect = 0;
4925
c9ffd2ea 4926 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 4927 {
c9ffd2ea
TG		 4928 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4929 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 4930 {
c9ffd2ea 4931 bfd_mach_o_segment_command *seg = &cmd->command.segment;
07d6d2b8 4932 bfd_mach_o_section *sec;
3af9a47b
NC		 4933
4934 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4935
07d6d2b8 4936 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
f1bde64c 4937 mdata->sections[csect++] = sec;
3af9a47b
NC		 4938 }
4939 }
4940}
4941
afbb9e17 4942static bfd_boolean
116c20d2 4943bfd_mach_o_scan_start_address (bfd *abfd)
3af9a47b 4944{
046b007d 4945 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c9ffd2ea
TG		 4946 bfd_mach_o_thread_command *thr = NULL;
4947 bfd_mach_o_load_command *cmd;
3af9a47b
NC		 4948 unsigned long i;
4949
c9ffd2ea
TG		 4950 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4951 if (cmd->type == BFD_MACH_O_LC_THREAD
4952 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
afbb9e17 4953 {
07d6d2b8
AM		 4954 thr = &cmd->command.thread;
4955 break;
afbb9e17 4956 }
c9ffd2ea 4957 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
c0fd7846 4958 {
c9ffd2ea 4959 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
c0fd7846 4960 bfd_mach_o_section *text_sect = mdata->sections[0];
c9ffd2ea 4961
c0fd7846
TG		 4962 if (text_sect)
4963 {
4964 abfd->start_address = main_cmd->entryoff
4965 + (text_sect->addr - text_sect->offset);
4966 return TRUE;
4967 }
4968 }
3af9a47b 4969
5ee43bc4 4970 /* An object file has no start address, so do not fail if not found. */
c9ffd2ea 4971 if (thr == NULL)
5ee43bc4 4972 return TRUE;
3af9a47b 4973
afbb9e17 4974 /* FIXME: create a subtarget hook ? */
c9ffd2ea 4975 for (i = 0; i < thr->nflavours; i++)
3af9a47b 4976 {
a95a4550 4977 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
c9ffd2ea 4978 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
3af9a47b
NC		 4979 {
4980 unsigned char buf[4];
4981
c9ffd2ea 4982 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
07d6d2b8 4983 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 4984 return FALSE;
3af9a47b
NC		 4985
4986 abfd->start_address = bfd_h_get_32 (abfd, buf);
4987 }
a95a4550 4988 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
c9ffd2ea 4989 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
3af9a47b
NC		 4990 {
4991 unsigned char buf[4];
4992
c9ffd2ea 4993 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
07d6d2b8 4994 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 4995 return FALSE;
3af9a47b
NC		 4996
4997 abfd->start_address = bfd_h_get_32 (abfd, buf);
4998 }
1e8a024a 4999 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
07d6d2b8
AM		 5000 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
5001 {
5002 unsigned char buf[8];
1e8a024a 5003
07d6d2b8
AM		 5004 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
5005 || bfd_bread (buf, 8, abfd) != 8)
5006 return FALSE;
1e8a024a 5007
07d6d2b8
AM		 5008 abfd->start_address = bfd_h_get_64 (abfd, buf);
5009 }
1e8a024a 5010 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
07d6d2b8
AM		 5011 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
5012 {
5013 unsigned char buf[8];
1e8a024a 5014
07d6d2b8
AM		 5015 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
5016 || bfd_bread (buf, 8, abfd) != 8)
5017 return FALSE;
1e8a024a 5018
07d6d2b8
AM		 5019 abfd->start_address = bfd_h_get_64 (abfd, buf);
5020 }
3af9a47b
NC		 5021 }
5022
afbb9e17 5023 return TRUE;
3af9a47b
NC		 5024}
5025
42fa0891
TG		 5026bfd_boolean
5027bfd_mach_o_set_arch_mach (bfd *abfd,
07d6d2b8
AM		 5028 enum bfd_architecture arch,
5029 unsigned long machine)
42fa0891
TG		 5030{
5031 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5032
5033 /* If this isn't the right architecture for this backend, and this
5034 isn't the generic backend, fail. */
5035 if (arch != bed->arch
5036 && arch != bfd_arch_unknown
5037 && bed->arch != bfd_arch_unknown)
5038 return FALSE;
5039
5040 return bfd_default_set_arch_mach (abfd, arch, machine);
5041}
5042
afbb9e17 5043static bfd_boolean
116c20d2
NC		 5044bfd_mach_o_scan (bfd *abfd,
5045 bfd_mach_o_header *header,
5046 bfd_mach_o_data_struct *mdata)
3af9a47b
NC		 5047{
5048 unsigned int i;
3af9a47b
NC		 5049 enum bfd_architecture cputype;
5050 unsigned long cpusubtype;
1e8a024a
TG		 5051 unsigned int hdrsize;
5052
c2f09c75 5053 hdrsize = mach_o_wide_p (header) ?
154a1ee5 5054 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3af9a47b 5055
3af9a47b 5056 mdata->header = *header;
3af9a47b 5057
154a1ee5 5058 abfd->flags = abfd->flags & BFD_IN_MEMORY;
15e1c58a
TG		 5059 switch (header->filetype)
5060 {
5061 case BFD_MACH_O_MH_OBJECT:
5062 abfd->flags |= HAS_RELOC;
5063 break;
5064 case BFD_MACH_O_MH_EXECUTE:
5065 abfd->flags |= EXEC_P;
5066 break;
5067 case BFD_MACH_O_MH_DYLIB:
5068 case BFD_MACH_O_MH_BUNDLE:
5069 abfd->flags |= DYNAMIC;
5070 break;
5071 }
5072
3af9a47b
NC		 5073 abfd->tdata.mach_o_data = mdata;
5074
e84d6fca
AM		 5075 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
5076 &cputype, &cpusubtype);
3af9a47b
NC		 5077 if (cputype == bfd_arch_unknown)
5078 {
4eca0228 5079 _bfd_error_handler
695344c0 5080 /* xgettext:c-format */
07d6d2b8
AM		 5081 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
5082 header->cputype, header->cpusubtype);
afbb9e17 5083 return FALSE;
3af9a47b
NC		 5084 }
5085
5086 bfd_set_arch_mach (abfd, cputype, cpusubtype);
a95a4550 5087
3af9a47b
NC		 5088 if (header->ncmds != 0)
5089 {
c9ffd2ea
TG		 5090 bfd_mach_o_load_command *cmd;
5091
5092 mdata->first_command = NULL;
5093 mdata->last_command = NULL;
64d29018
NC		 5094
5095 cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command));
c9ffd2ea 5096 if (cmd == NULL)
afbb9e17 5097 return FALSE;
a95a4550 5098
3af9a47b
NC		 5099 for (i = 0; i < header->ncmds; i++)
5100 {
c9ffd2ea
TG		 5101 bfd_mach_o_load_command *cur = &cmd[i];
5102
5103 bfd_mach_o_append_command (abfd, cur);
3af9a47b
NC		 5104
5105 if (i == 0)
1e8a024a 5106 cur->offset = hdrsize;
3af9a47b
NC		 5107 else
5108 {
c9ffd2ea 5109 bfd_mach_o_load_command *prev = &cmd[i - 1];
3af9a47b
NC		 5110 cur->offset = prev->offset + prev->len;
5111 }
5112
452216ab 5113 if (!bfd_mach_o_read_command (abfd, cur))
afbb9e17 5114 return FALSE;
a95a4550 5115 }
3af9a47b
NC		 5116 }
5117
c0fd7846
TG		 5118 /* Sections should be flatten before scanning start address. */
5119 bfd_mach_o_flatten_sections (abfd);
5120 if (!bfd_mach_o_scan_start_address (abfd))
afbb9e17 5121 return FALSE;
3af9a47b 5122
afbb9e17 5123 return TRUE;
3af9a47b
NC		 5124}
5125
b34976b6 5126bfd_boolean
154a1ee5 5127bfd_mach_o_mkobject_init (bfd *abfd)
3af9a47b
NC		 5128{
5129 bfd_mach_o_data_struct *mdata = NULL;
5130
b30a5d18 5131 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
3af9a47b 5132 if (mdata == NULL)
b34976b6 5133 return FALSE;
3af9a47b
NC		 5134 abfd->tdata.mach_o_data = mdata;
5135
5136 mdata->header.magic = 0;
5137 mdata->header.cputype = 0;
5138 mdata->header.cpusubtype = 0;
5139 mdata->header.filetype = 0;
5140 mdata->header.ncmds = 0;
5141 mdata->header.sizeofcmds = 0;
5142 mdata->header.flags = 0;
5143 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
c9ffd2ea
TG		 5144 mdata->first_command = NULL;
5145 mdata->last_command = NULL;
3af9a47b
NC		 5146 mdata->nsects = 0;
5147 mdata->sections = NULL;
4434114c 5148 mdata->dyn_reloc_cache = NULL;
3af9a47b 5149
b34976b6 5150 return TRUE;
3af9a47b
NC		 5151}
5152
42fa0891
TG		 5153static bfd_boolean
5154bfd_mach_o_gen_mkobject (bfd *abfd)
5155{
5156 bfd_mach_o_data_struct *mdata;
5157
5158 if (!bfd_mach_o_mkobject_init (abfd))
5159 return FALSE;
5160
5161 mdata = bfd_mach_o_get_data (abfd);
5162 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
5163 mdata->header.cputype = 0;
5164 mdata->header.cpusubtype = 0;
5165 mdata->header.byteorder = abfd->xvec->byteorder;
5166 mdata->header.version = 1;
5167
5168 return TRUE;
5169}
5170
3af9a47b 5171const bfd_target *
154a1ee5 5172bfd_mach_o_header_p (bfd *abfd,
47daa70f 5173 file_ptr hdr_off,
07d6d2b8
AM		 5174 bfd_mach_o_filetype filetype,
5175 bfd_mach_o_cpu_type cputype)
3af9a47b
NC		 5176{
5177 bfd_mach_o_header header;
c9ba0c87 5178 bfd_mach_o_data_struct *mdata;
3af9a47b 5179
47daa70f 5180 if (!bfd_mach_o_read_header (abfd, hdr_off, &header))
e84d6fca 5181 goto wrong;
3af9a47b 5182
e84d6fca
AM		 5183 if (! (header.byteorder == BFD_ENDIAN_BIG
5184 || header.byteorder == BFD_ENDIAN_LITTLE))
3af9a47b 5185 {
d42c267e
AM		 5186 _bfd_error_handler (_("unknown header byte-order value %#x"),
5187 header.byteorder);
e84d6fca 5188 goto wrong;
3af9a47b
NC		 5189 }
5190
e84d6fca
AM		 5191 if (! ((header.byteorder == BFD_ENDIAN_BIG
5192 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
5193 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
5194 || (header.byteorder == BFD_ENDIAN_LITTLE
5195 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
5196 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
5197 goto wrong;
3af9a47b 5198
154a1ee5
TG		 5199 /* Check cputype and filetype.
5200 In case of wildcard, do not accept magics that are handled by existing
5201 targets. */
5202 if (cputype)
5203 {
5204 if (header.cputype != cputype)
07d6d2b8 5205 goto wrong;
154a1ee5 5206 }
26954155
TG		 5207 else
5208 {
5209#ifndef BFD64
5210 /* Do not recognize 64 architectures if not configured for 64bit targets.
5211 This could happen only for generic targets. */
5212 if (mach_o_wide_p (&header))
5213 goto wrong;
5214#endif
5215 }
b22161d6 5216
154a1ee5
TG		 5217 if (filetype)
5218 {
5219 if (header.filetype != filetype)
07d6d2b8 5220 goto wrong;
154a1ee5
TG		 5221 }
5222 else
5223 {
5224 switch (header.filetype)
07d6d2b8
AM		 5225 {
5226 case BFD_MACH_O_MH_CORE:
5227 /* Handled by core_p */
5228 goto wrong;
5229 default:
5230 break;
5231 }
154a1ee5
TG		 5232 }
5233
c9ba0c87
AM		 5234 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5235 if (mdata == NULL)
e84d6fca 5236 goto fail;
47daa70f 5237 mdata->hdr_offset = hdr_off;
3af9a47b 5238
c9ba0c87 5239 if (!bfd_mach_o_scan (abfd, &header, mdata))
e84d6fca 5240 goto wrong;
a95a4550 5241
3af9a47b 5242 return abfd->xvec;
e84d6fca
AM		 5243
5244 wrong:
5245 bfd_set_error (bfd_error_wrong_format);
5246
5247 fail:
e84d6fca 5248 return NULL;
3af9a47b
NC		 5249}
5250
154a1ee5
TG		 5251static const bfd_target *
5252bfd_mach_o_gen_object_p (bfd *abfd)
3af9a47b 5253{
47daa70f 5254 return bfd_mach_o_header_p (abfd, 0, 0, 0);
154a1ee5 5255}
e84d6fca 5256
154a1ee5
TG		 5257static const bfd_target *
5258bfd_mach_o_gen_core_p (bfd *abfd)
5259{
47daa70f 5260 return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0);
3af9a47b
NC		 5261}
5262
3cc27770
TG		 5263/* Return the base address of ABFD, ie the address at which the image is
5264 mapped. The possible initial pagezero is ignored. */
5265
5266bfd_vma
5267bfd_mach_o_get_base_address (bfd *abfd)
5268{
5269 bfd_mach_o_data_struct *mdata;
c9ffd2ea 5270 bfd_mach_o_load_command *cmd;
3cc27770
TG		 5271
5272 /* Check for Mach-O. */
5273 if (!bfd_mach_o_valid (abfd))
5274 return 0;
5275 mdata = bfd_mach_o_get_data (abfd);
5276
c9ffd2ea 5277 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3cc27770 5278 {
3cc27770
TG		 5279 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5280 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5281 {
5282 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5283
5284 if (segcmd->initprot != 0)
5285 return segcmd->vmaddr;
5286 }
5287 }
5288 return 0;
5289}
5290
3af9a47b
NC		 5291typedef struct mach_o_fat_archentry
5292{
5293 unsigned long cputype;
5294 unsigned long cpusubtype;
5295 unsigned long offset;
5296 unsigned long size;
5297 unsigned long align;
3af9a47b
NC		 5298} mach_o_fat_archentry;
5299
5300typedef struct mach_o_fat_data_struct
5301{
5302 unsigned long magic;
5303 unsigned long nfat_arch;
5304 mach_o_fat_archentry *archentries;
5305} mach_o_fat_data_struct;
5306
5307const bfd_target *
47daa70f 5308bfd_mach_o_fat_archive_p (bfd *abfd)
3af9a47b 5309{
e84d6fca 5310 mach_o_fat_data_struct *adata = NULL;
46d1c23b 5311 struct mach_o_fat_header_external hdr;
3af9a47b
NC		 5312 unsigned long i;
5313
c2f09c75 5314 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 5315 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
e84d6fca 5316 goto error;
3af9a47b 5317
116c20d2 5318 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
3af9a47b 5319 if (adata == NULL)
e84d6fca 5320 goto error;
a95a4550 5321
46d1c23b
TG		 5322 adata->magic = bfd_getb32 (hdr.magic);
5323 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
3af9a47b 5324 if (adata->magic != 0xcafebabe)
e84d6fca 5325 goto error;
27cc28f9
AS		 5326 /* Avoid matching Java bytecode files, which have the same magic number.
5327 In the Java bytecode file format this field contains the JVM version,
5328 which starts at 43.0. */
5329 if (adata->nfat_arch > 30)
5330 goto error;
3af9a47b 5331
c2f09c75 5332 adata->archentries =
64d29018 5333 bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry));
3af9a47b 5334 if (adata->archentries == NULL)
e84d6fca 5335 goto error;
3af9a47b
NC		 5336
5337 for (i = 0; i < adata->nfat_arch; i++)
5338 {
46d1c23b
TG		 5339 struct mach_o_fat_arch_external arch;
5340 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
e84d6fca 5341 goto error;
46d1c23b
TG		 5342 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5343 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5344 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5345 adata->archentries[i].size = bfd_getb32 (arch.size);
5346 adata->archentries[i].align = bfd_getb32 (arch.align);
3af9a47b
NC		 5347 }
5348
5349 abfd->tdata.mach_o_fat_data = adata;
64d29018 5350
3af9a47b 5351 return abfd->xvec;
e84d6fca
AM		 5352
5353 error:
5354 if (adata != NULL)
5355 bfd_release (abfd, adata);
5356 bfd_set_error (bfd_error_wrong_format);
5357 return NULL;
3af9a47b
NC		 5358}
5359
a4e241ca
TG		 5360/* Set the filename for a fat binary member ABFD, whose bfd architecture is
5361 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5362 Set arelt_data and origin fields too. */
5363
5364static void
5365bfd_mach_o_fat_member_init (bfd *abfd,
07d6d2b8
AM		 5366 enum bfd_architecture arch_type,
5367 unsigned long arch_subtype,
5368 mach_o_fat_archentry *entry)
a4e241ca
TG		 5369{
5370 struct areltdata *areltdata;
5371 /* Create the member filename. Use ARCH_NAME. */
5372 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5373
5374 if (ap)
5375 {
5376 /* Use the architecture name if known. */
1be5090b 5377 abfd->filename = xstrdup (ap->printable_name);
a4e241ca
TG		 5378 }
5379 else
5380 {
5381 /* Forge a uniq id. */
5382 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
1be5090b 5383 char *name = xmalloc (namelen);
a4e241ca 5384 snprintf (name, namelen, "0x%lx-0x%lx",
07d6d2b8 5385 entry->cputype, entry->cpusubtype);
a4e241ca
TG		 5386 abfd->filename = name;
5387 }
5388
06e7acd7 5389 areltdata = bfd_zmalloc (sizeof (struct areltdata));
a4e241ca
TG		 5390 areltdata->parsed_size = entry->size;
5391 abfd->arelt_data = areltdata;
5392 abfd->iostream = NULL;
5393 abfd->origin = entry->offset;
5394}
5395
3af9a47b 5396bfd *
47daa70f 5397bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev)
3af9a47b 5398{
e84d6fca 5399 mach_o_fat_data_struct *adata;
3af9a47b
NC		 5400 mach_o_fat_archentry *entry = NULL;
5401 unsigned long i;
15e1c58a 5402 bfd *nbfd;
15e1c58a
TG		 5403 enum bfd_architecture arch_type;
5404 unsigned long arch_subtype;
3af9a47b 5405
e84d6fca 5406 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
3af9a47b
NC		 5407 BFD_ASSERT (adata != NULL);
5408
5409 /* Find index of previous entry. */
5410 if (prev == NULL)
a4e241ca
TG		 5411 {
5412 /* Start at first one. */
5413 i = 0;
5414 }
3af9a47b
NC		 5415 else
5416 {
a4e241ca 5417 /* Find index of PREV. */
3af9a47b
NC		 5418 for (i = 0; i < adata->nfat_arch; i++)
5419 {
15e1c58a 5420 if (adata->archentries[i].offset == prev->origin)
3af9a47b
NC		 5421 break;
5422 }
5423
5424 if (i == adata->nfat_arch)
5425 {
5426 /* Not found. */
5427 bfd_set_error (bfd_error_bad_value);
a95a4550 5428 return NULL;
3af9a47b 5429 }
a4e241ca
TG		 5430
5431 /* Get next entry. */
5432 i++;
5433 }
a95a4550 5434
3af9a47b
NC		 5435 if (i >= adata->nfat_arch)
5436 {
5437 bfd_set_error (bfd_error_no_more_archived_files);
5438 return NULL;
5439 }
5440
5441 entry = &adata->archentries[i];
15e1c58a
TG		 5442 nbfd = _bfd_new_bfd_contained_in (archive);
5443 if (nbfd == NULL)
5444 return NULL;
5445
15e1c58a
TG		 5446 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5447 &arch_type, &arch_subtype);
846b9259 5448
a4e241ca
TG		 5449 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5450
846b9259 5451 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
3af9a47b 5452
15e1c58a 5453 return nbfd;
3af9a47b
NC		 5454}
5455
15bbba8d
TG		 5456/* Analogous to stat call. */
5457
5458static int
5459bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5460{
5461 if (abfd->arelt_data == NULL)
5462 {
5463 bfd_set_error (bfd_error_invalid_operation);
5464 return -1;
5465 }
5466
5467 buf->st_mtime = 0;
5468 buf->st_uid = 0;
5469 buf->st_gid = 0;
5470 buf->st_mode = 0644;
5471 buf->st_size = arelt_size (abfd);
5472
5473 return 0;
5474}
5475
846b9259
TG		 5476/* If ABFD format is FORMAT and architecture is ARCH, return it.
5477 If ABFD is a fat image containing a member that corresponds to FORMAT
5478 and ARCH, returns it.
5479 In other case, returns NULL.
5480 This function allows transparent uses of fat images. */
a4e241ca 5481
846b9259
TG		 5482bfd *
5483bfd_mach_o_fat_extract (bfd *abfd,
5484 bfd_format format,
5485 const bfd_arch_info_type *arch)
5486{
5487 bfd *res;
5488 mach_o_fat_data_struct *adata;
5489 unsigned int i;
5490
5491 if (bfd_check_format (abfd, format))
5492 {
5493 if (bfd_get_arch_info (abfd) == arch)
5494 return abfd;
5495 return NULL;
5496 }
5497 if (!bfd_check_format (abfd, bfd_archive)
5498 || abfd->xvec != &mach_o_fat_vec)
5499 return NULL;
c2f09c75 5500
846b9259
TG		 5501 /* This is a Mach-O fat image. */
5502 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5503 BFD_ASSERT (adata != NULL);
5504
5505 for (i = 0; i < adata->nfat_arch; i++)
5506 {
5507 struct mach_o_fat_archentry *e = &adata->archentries[i];
5508 enum bfd_architecture cpu_type;
5509 unsigned long cpu_subtype;
5510
5511 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5512 &cpu_type, &cpu_subtype);
5513 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5514 continue;
5515
5516 /* The architecture is found. */
5517 res = _bfd_new_bfd_contained_in (abfd);
5518 if (res == NULL)
5519 return NULL;
5520
a4e241ca 5521 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
846b9259
TG		 5522
5523 if (bfd_check_format (res, format))
5524 {
5525 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5526 return res;
5527 }
5528 bfd_close (res);
5529 return NULL;
5530 }
5531
5532 return NULL;
5533}
5534
3af9a47b 5535int
116c20d2
NC		 5536bfd_mach_o_lookup_command (bfd *abfd,
5537 bfd_mach_o_load_command_type type,
5538 bfd_mach_o_load_command **mcommand)
3af9a47b 5539{
c9ffd2ea
TG		 5540 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5541 struct bfd_mach_o_load_command *cmd;
5542 unsigned int num;
3af9a47b 5543
c9ffd2ea 5544 BFD_ASSERT (mdata != NULL);
3af9a47b
NC		 5545 BFD_ASSERT (mcommand != NULL);
5546
5547 num = 0;
c9ffd2ea 5548 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5549 {
3af9a47b
NC		 5550 if (cmd->type != type)
5551 continue;
5552
5553 if (num == 0)
c9ffd2ea 5554 *mcommand = cmd;
3af9a47b
NC		 5555 num++;
5556 }
5557
3af9a47b
NC		 5558 return num;
5559}
5560
5561unsigned long
116c20d2 5562bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
3af9a47b
NC		 5563{
5564 switch (type)
5565 {
5566 case BFD_MACH_O_CPU_TYPE_MC680x0:
5567 return 0x04000000;
3af9a47b
NC		 5568 case BFD_MACH_O_CPU_TYPE_POWERPC:
5569 return 0xc0000000;
5570 case BFD_MACH_O_CPU_TYPE_I386:
5571 return 0xc0000000;
5572 case BFD_MACH_O_CPU_TYPE_SPARC:
5573 return 0xf0000000;
3af9a47b 5574 case BFD_MACH_O_CPU_TYPE_HPPA:
e84d6fca 5575 return 0xc0000000 - 0x04000000;
3af9a47b
NC		 5576 default:
5577 return 0;
5578 }
5579}
5580
ab76eeaf
IS		 5581/* The following two tables should be kept, as far as possible, in order of
5582 most frequently used entries to optimize their use from gas. */
5583
c5012cd8 5584const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
046b007d
TG		 5585{
5586 { "regular", BFD_MACH_O_S_REGULAR},
ab76eeaf 5587 { "coalesced", BFD_MACH_O_S_COALESCED},
046b007d
TG		 5588 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5589 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5590 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5591 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
ab76eeaf 5592 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
046b007d 5593 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
046b007d
TG		 5594 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5595 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
046b007d
TG		 5596 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5597 { "interposing", BFD_MACH_O_S_INTERPOSING},
046b007d 5598 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
ab76eeaf
IS		 5599 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5600 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
a4551119 5601 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
046b007d
TG		 5602 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5603 { NULL, 0}
5604};
5605
c5012cd8 5606const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
046b007d 5607{
ab76eeaf
IS		 5608 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5609 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
046b007d
TG		 5610 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5611 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
046b007d 5612 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
046b007d
TG		 5613 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5614 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5615 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5616 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
a4551119 5617 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
ab76eeaf 5618 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
046b007d
TG		 5619 { NULL, 0}
5620};
5621
a4551119 5622/* Get the section type from NAME. Return 256 if NAME is unknown. */
53d58d96
TG		 5623
5624unsigned int
ab76eeaf 5625bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
53d58d96 5626{
afbb9e17 5627 const bfd_mach_o_xlat_name *x;
ab76eeaf 5628 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
53d58d96
TG		 5629
5630 for (x = bfd_mach_o_section_type_name; x->name; x++)
5631 if (strcmp (x->name, name) == 0)
ab76eeaf
IS		 5632 {
5633 /* We found it... does the target support it? */
5634 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5635 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5636 return x->val; /* OK. */
5637 else
5638 break; /* Not supported. */
5639 }
a4551119
TG		 5640 /* Maximum section ID = 0xff. */
5641 return 256;
53d58d96
TG		 5642}
5643
5644/* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5645
5646unsigned int
5647bfd_mach_o_get_section_attribute_from_name (const char *name)
5648{
afbb9e17 5649 const bfd_mach_o_xlat_name *x;
53d58d96
TG		 5650
5651 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5652 if (strcmp (x->name, name) == 0)
5653 return x->val;
5654 return (unsigned int)-1;
5655}
5656
3af9a47b 5657int
116c20d2
NC		 5658bfd_mach_o_core_fetch_environment (bfd *abfd,
5659 unsigned char **rbuf,
5660 unsigned int *rlen)
3af9a47b 5661{
046b007d 5662 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 5663 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
c9ffd2ea 5664 bfd_mach_o_load_command *cmd;
3af9a47b 5665
c9ffd2ea 5666 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
3af9a47b 5667 {
c9ffd2ea 5668 bfd_mach_o_segment_command *seg;
3af9a47b 5669
c9ffd2ea 5670 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
3af9a47b
NC		 5671 continue;
5672
c9ffd2ea 5673 seg = &cmd->command.segment;
3af9a47b
NC		 5674
5675 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5676 {
5677 unsigned long start = seg->fileoff;
5678 unsigned long end = seg->fileoff + seg->filesize;
5679 unsigned char *buf = bfd_malloc (1024);
5680 unsigned long size = 1024;
5681
5682 for (;;)
5683 {
5684 bfd_size_type nread = 0;
5685 unsigned long offset;
5686 int found_nonnull = 0;
5687
5688 if (size > (end - start))
5689 size = (end - start);
5690
515ef31d
NC		 5691 buf = bfd_realloc_or_free (buf, size);
5692 if (buf == NULL)
5693 return -1;
c2f09c75
TG		 5694
5695 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
07d6d2b8
AM		 5696 {
5697 free (buf);
5698 return -1;
5699 }
c2f09c75 5700
3af9a47b 5701 nread = bfd_bread (buf, size, abfd);
a95a4550 5702
3af9a47b 5703 if (nread != size)
515ef31d
NC		 5704 {
5705 free (buf);
5706 return -1;
5707 }
a95a4550 5708
3af9a47b
NC		 5709 for (offset = 4; offset <= size; offset += 4)
5710 {
e84d6fca 5711 unsigned long val;
3af9a47b 5712
e84d6fca 5713 val = *((unsigned long *) (buf + size - offset));
3af9a47b
NC		 5714 if (! found_nonnull)
5715 {
5716 if (val != 0)
5717 found_nonnull = 1;
5718 }
5719 else if (val == 0x0)
5720 {
e84d6fca
AM		 5721 unsigned long bottom;
5722 unsigned long top;
3af9a47b 5723
e84d6fca
AM		 5724 bottom = seg->fileoff + seg->filesize - offset;
5725 top = seg->fileoff + seg->filesize - 4;
3af9a47b
NC		 5726 *rbuf = bfd_malloc (top - bottom);
5727 *rlen = top - bottom;
5728
5729 memcpy (*rbuf, buf + size - *rlen, *rlen);
515ef31d 5730 free (buf);
3af9a47b
NC		 5731 return 0;
5732 }
5733 }
5734
5735 if (size == (end - start))
5736 break;
5737
5738 size *= 2;
5739 }
515ef31d
NC		 5740
5741 free (buf);
3af9a47b
NC		 5742 }
5743 }
5744
5745 return -1;
5746}
5747
5748char *
116c20d2 5749bfd_mach_o_core_file_failing_command (bfd *abfd)
3af9a47b
NC		 5750{
5751 unsigned char *buf = NULL;
5752 unsigned int len = 0;
452216ab 5753 int ret;
3af9a47b
NC		 5754
5755 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5756 if (ret < 0)
5757 return NULL;
5758
f075ee0c 5759 return (char *) buf;
3af9a47b
NC		 5760}
5761
5762int
116c20d2 5763bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
3af9a47b
NC		 5764{
5765 return 0;
5766}
5767
2ca7691a
TG		 5768static bfd_mach_o_uuid_command *
5769bfd_mach_o_lookup_uuid_command (bfd *abfd)
5770{
09fe2662 5771 bfd_mach_o_load_command *uuid_cmd = NULL;
2ca7691a 5772 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
09fe2662 5773 if (ncmd != 1 || uuid_cmd == NULL)
2ca7691a
TG		 5774 return FALSE;
5775 return &uuid_cmd->command.uuid;
5776}
5777
5778/* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5779
5780static bfd_boolean
5781bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5782{
5783 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5784
5785 BFD_ASSERT (abfd);
5786 BFD_ASSERT (uuid_cmd);
5787
5788 if (!bfd_check_format (abfd, bfd_object))
5789 return FALSE;
5790
5791 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5792 || bfd_mach_o_get_data (abfd) == NULL
5793 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5794 return FALSE;
5795
5796 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5797 if (dsym_uuid_cmd == NULL)
5798 return FALSE;
5799
5800 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
07d6d2b8 5801 sizeof (uuid_cmd->uuid)) != 0)
2ca7691a
TG		 5802 return FALSE;
5803
5804 return TRUE;
5805}
5806
5807/* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5808 The caller is responsible for closing the returned BFD object and
5809 its my_archive if the returned BFD is in a fat dSYM. */
5810
5811static bfd *
5812bfd_mach_o_find_dsym (const char *dsym_filename,
07d6d2b8
AM		 5813 const bfd_mach_o_uuid_command *uuid_cmd,
5814 const bfd_arch_info_type *arch)
2ca7691a
TG		 5815{
5816 bfd *base_dsym_bfd, *dsym_bfd;
5817
5818 BFD_ASSERT (uuid_cmd);
5819
5820 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5821 if (base_dsym_bfd == NULL)
5822 return NULL;
5823
5824 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5825 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5826 return dsym_bfd;
5827
5828 bfd_close (dsym_bfd);
5829 if (base_dsym_bfd != dsym_bfd)
5830 bfd_close (base_dsym_bfd);
5831
5832 return NULL;
5833}
5834
5835/* Return a BFD created from a dSYM file for ABFD.
5836 The caller is responsible for closing the returned BFD object, its
5837 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5838
5839static bfd *
5840bfd_mach_o_follow_dsym (bfd *abfd)
5841{
5842 char *dsym_filename;
5843 bfd_mach_o_uuid_command *uuid_cmd;
5844 bfd *dsym_bfd, *base_bfd = abfd;
5845 const char *base_basename;
5846
5847 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5848 return NULL;
5849
b0cffb47 5850 if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive))
2ca7691a
TG		 5851 base_bfd = abfd->my_archive;
5852 /* BFD may have been opened from a stream. */
5853 if (base_bfd->filename == NULL)
5854 {
5855 bfd_set_error (bfd_error_invalid_operation);
5856 return NULL;
5857 }
5858 base_basename = lbasename (base_bfd->filename);
5859
5860 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5861 if (uuid_cmd == NULL)
5862 return NULL;
5863
5864 /* TODO: We assume the DWARF file has the same as the binary's.
5865 It seems apple's GDB checks all files in the dSYM bundle directory.
5866 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5867 */
5868 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
07d6d2b8
AM		 5869 + strlen (dsym_subdir) + 1
5870 + strlen (base_basename) + 1);
2ca7691a 5871 sprintf (dsym_filename, "%s%s/%s",
07d6d2b8 5872 base_bfd->filename, dsym_subdir, base_basename);
2ca7691a
TG		 5873
5874 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
07d6d2b8 5875 bfd_get_arch_info (abfd));
2ca7691a
TG		 5876 if (dsym_bfd == NULL)
5877 free (dsym_filename);
5878
5879 return dsym_bfd;
5880}
5881
d9071b0c
TG		 5882bfd_boolean
5883bfd_mach_o_find_nearest_line (bfd *abfd,
d9071b0c 5884 asymbol **symbols,
fb167eb2 5885 asection *section,
d9071b0c
TG		 5886 bfd_vma offset,
5887 const char **filename_ptr,
5888 const char **functionname_ptr,
fb167eb2
AM		 5889 unsigned int *line_ptr,
5890 unsigned int *discriminator_ptr)
d9071b0c
TG		 5891{
5892 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2ca7691a 5893 if (mdata == NULL)
d9071b0c 5894 return FALSE;
2ca7691a
TG		 5895 switch (mdata->header.filetype)
5896 {
5897 case BFD_MACH_O_MH_OBJECT:
5898 break;
5899 case BFD_MACH_O_MH_EXECUTE:
5900 case BFD_MACH_O_MH_DYLIB:
5901 case BFD_MACH_O_MH_BUNDLE:
5902 case BFD_MACH_O_MH_KEXT_BUNDLE:
5903 if (mdata->dwarf2_find_line_info == NULL)
07d6d2b8
AM		 5904 {
5905 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5906 /* When we couldn't find dSYM for this binary, we look for
5907 the debug information in the binary itself. In this way,
5908 we won't try finding separated dSYM again because
5909 mdata->dwarf2_find_line_info will be filled. */
5910 if (! mdata->dsym_bfd)
5911 break;
5912 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5913 dwarf_debug_sections, symbols,
5914 &mdata->dwarf2_find_line_info,
93ee1e36 5915 FALSE))
07d6d2b8
AM		 5916 return FALSE;
5917 }
2ca7691a
TG		 5918 break;
5919 default:
5920 return FALSE;
5921 }
fb167eb2
AM		 5922 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5923 filename_ptr, functionname_ptr,
5924 line_ptr, discriminator_ptr,
5925 dwarf_debug_sections, 0,
5926 &mdata->dwarf2_find_line_info);
d9071b0c
TG		 5927}
5928
5929bfd_boolean
5930bfd_mach_o_close_and_cleanup (bfd *abfd)
5931{
5932 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5933 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
4434114c
TG		 5934 {
5935 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5936 bfd_mach_o_free_cached_info (abfd);
2ca7691a 5937 if (mdata->dsym_bfd != NULL)
07d6d2b8
AM		 5938 {
5939 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
cf466c2a
NC		 5940#if 0
5941 /* FIXME: PR 19435: This calculation to find the memory allocated by
5942 bfd_mach_o_follow_dsym for the filename does not always end up
5943 selecting the correct pointer. Unfortunately this problem is
5944 very hard to reproduce on a non Mach-O native system, so until it
5945 can be traced and fixed on such a system, this code will remain
5946 commented out. This does mean that there will be a memory leak,
5947 but it is small, and happens when we are closing down, so it
c244074c 5948 should not matter too much. */
07d6d2b8
AM		 5949 char *dsym_filename = (char *)(fat_bfd
5950 ? fat_bfd->filename
5951 : mdata->dsym_bfd->filename);
cf466c2a 5952#endif
07d6d2b8
AM		 5953 bfd_close (mdata->dsym_bfd);
5954 mdata->dsym_bfd = NULL;
5955 if (fat_bfd)
5956 bfd_close (fat_bfd);
cf466c2a 5957#if 0
07d6d2b8 5958 free (dsym_filename);
cf466c2a 5959#endif
07d6d2b8 5960 }
4434114c 5961 }
dff55db0 5962
d9071b0c
TG		 5963 return _bfd_generic_close_and_cleanup (abfd);
5964}
5965
c6643fcc
NC		 5966bfd_boolean
5967bfd_mach_o_free_cached_info (bfd *abfd)
dff55db0
TG		 5968{
5969 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5970 asection *asect;
5971 free (mdata->dyn_reloc_cache);
5972 mdata->dyn_reloc_cache = NULL;
5973 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5974 {
5975 free (asect->relocation);
5976 asect->relocation = NULL;
5977 }
5978
5979 return TRUE;
5980}
5981
68ffbac6 5982#define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
92bc0e80
TG		 5983#define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5984
bcb51645 5985#define bfd_mach_o_canonicalize_one_reloc NULL
92bc0e80 5986#define bfd_mach_o_swap_reloc_out NULL
b32e07d7 5987#define bfd_mach_o_print_thread NULL
a4551119 5988#define bfd_mach_o_tgt_seg_table NULL
ab76eeaf 5989#define bfd_mach_o_section_type_valid_for_tgt NULL
92bc0e80 5990
07d6d2b8
AM		 5991#define TARGET_NAME mach_o_be_vec
5992#define TARGET_STRING "mach-o-be"
42fa0891 5993#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 5994#define TARGET_PAGESIZE 1
07d6d2b8
AM		 5995#define TARGET_BIG_ENDIAN 1
5996#define TARGET_ARCHIVE 0
b93a1992 5997#define TARGET_PRIORITY 1
3af9a47b
NC		 5998#include "mach-o-target.c"
5999
6000#undef TARGET_NAME
6001#undef TARGET_STRING
42fa0891 6002#undef TARGET_ARCHITECTURE
4384b284 6003#undef TARGET_PAGESIZE
3af9a47b
NC		 6004#undef TARGET_BIG_ENDIAN
6005#undef TARGET_ARCHIVE
b93a1992 6006#undef TARGET_PRIORITY
3af9a47b 6007
07d6d2b8
AM		 6008#define TARGET_NAME mach_o_le_vec
6009#define TARGET_STRING "mach-o-le"
42fa0891 6010#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 6011#define TARGET_PAGESIZE 1
07d6d2b8
AM		 6012#define TARGET_BIG_ENDIAN 0
6013#define TARGET_ARCHIVE 0
b93a1992 6014#define TARGET_PRIORITY 1
3af9a47b
NC		 6015
6016#include "mach-o-target.c"
6017
6018#undef TARGET_NAME
6019#undef TARGET_STRING
42fa0891 6020#undef TARGET_ARCHITECTURE
4384b284 6021#undef TARGET_PAGESIZE
3af9a47b
NC		 6022#undef TARGET_BIG_ENDIAN
6023#undef TARGET_ARCHIVE
b93a1992 6024#undef TARGET_PRIORITY
3af9a47b 6025
8f95b6e4 6026/* Not yet handled: creating an archive. */
07d6d2b8 6027#define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
8f95b6e4 6028
d00dd7dc 6029#define bfd_mach_o_close_and_cleanup _bfd_bool_bfd_true
47daa70f 6030
8f95b6e4 6031/* Not used. */
07d6d2b8 6032#define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
47daa70f
TG		 6033#define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file
6034#define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p
8f95b6e4 6035
07d6d2b8
AM		 6036#define TARGET_NAME mach_o_fat_vec
6037#define TARGET_STRING "mach-o-fat"
42fa0891 6038#define TARGET_ARCHITECTURE bfd_arch_unknown
4384b284 6039#define TARGET_PAGESIZE 1
07d6d2b8
AM		 6040#define TARGET_BIG_ENDIAN 1
6041#define TARGET_ARCHIVE 1
b93a1992 6042#define TARGET_PRIORITY 0
3af9a47b
NC		 6043
6044#include "mach-o-target.c"
6045
6046#undef TARGET_NAME
6047#undef TARGET_STRING
42fa0891 6048#undef TARGET_ARCHITECTURE
4384b284 6049#undef TARGET_PAGESIZE
3af9a47b
NC		 6050#undef TARGET_BIG_ENDIAN
6051#undef TARGET_ARCHIVE
b93a1992 6052#undef TARGET_PRIORITY
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