projects / deliverable / binutils-gdb.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
order relocs after segments for mach-o
[deliverable/binutils-gdb.git] / bfd / mach-o.c
CommitLineData
3af9a47b 1/* Mach-O support for BFD.
4f608e79 2 Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
7f307238 3 2009, 2010, 2011, 2012
3af9a47b
NC		 4 Free Software Foundation, Inc.
5
6 This file is part of BFD, the Binary File Descriptor library.
7
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
cd123cb7 10 the Free Software Foundation; either version 3 of the License, or
3af9a47b
NC		 11 (at your option) any later version.
12
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
a95a4550 19 along with this program; if not, write to the Free Software
cd123cb7
NC		 20 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
21 MA 02110-1301, USA. */
3af9a47b 22
3db64b00 23#include "sysdep.h"
3af9a47b
NC		 24#include "mach-o.h"
25#include "bfd.h"
3af9a47b
NC		 26#include "libbfd.h"
27#include "libiberty.h"
15e1c58a 28#include "aout/stab_gnu.h"
46d1c23b
TG		 29#include "mach-o/reloc.h"
30#include "mach-o/external.h"
3af9a47b 31#include <ctype.h>
7f307238
IS		 32#include <stdlib.h>
33#include <string.h>
3af9a47b 34
154a1ee5
TG		 35#define bfd_mach_o_object_p bfd_mach_o_gen_object_p
36#define bfd_mach_o_core_p bfd_mach_o_gen_core_p
42fa0891 37#define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject
116c20d2 38
92bc0e80
TG		 39#define FILE_ALIGN(off, algn) \
40 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1 << (algn)))
41
c2f09c75 42unsigned int
1e8a024a
TG		 43bfd_mach_o_version (bfd *abfd)
44{
45 bfd_mach_o_data_struct *mdata = NULL;
46
47 BFD_ASSERT (bfd_mach_o_valid (abfd));
046b007d 48 mdata = bfd_mach_o_get_data (abfd);
1e8a024a
TG		 49
50 return mdata->header.version;
51}
52
b34976b6 53bfd_boolean
116c20d2 54bfd_mach_o_valid (bfd *abfd)
3af9a47b
NC		 55{
56 if (abfd == NULL || abfd->xvec == NULL)
154a1ee5 57 return FALSE;
3af9a47b 58
154a1ee5
TG		 59 if (abfd->xvec->flavour != bfd_target_mach_o_flavour)
60 return FALSE;
3af9a47b 61
046b007d 62 if (bfd_mach_o_get_data (abfd) == NULL)
154a1ee5
TG		 63 return FALSE;
64 return TRUE;
65}
66
c2f09c75
TG		 67static INLINE bfd_boolean
68mach_o_wide_p (bfd_mach_o_header *header)
69{
70 switch (header->version)
71 {
72 case 1:
73 return FALSE;
74 case 2:
75 return TRUE;
76 default:
77 BFD_FAIL ();
78 return FALSE;
79 }
80}
81
82static INLINE bfd_boolean
83bfd_mach_o_wide_p (bfd *abfd)
84{
046b007d 85 return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header);
c2f09c75
TG		 86}
87
154a1ee5
TG		 88/* Tables to translate well known Mach-O segment/section names to bfd
89 names. Use of canonical names (such as .text or .debug_frame) is required
90 by gdb. */
91
a4551119
TG		 92/* __TEXT Segment. */
93static const mach_o_section_name_xlat text_section_names_xlat[] =
154a1ee5 94 {
a4551119
TG		 95 { ".text", "__text",
96 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
97 BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0},
98 { ".const", "__const",
99 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
100 BFD_MACH_O_S_ATTR_NONE, 0},
101 { ".static_const", "__static_const",
102 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
103 BFD_MACH_O_S_ATTR_NONE, 0},
104 { ".cstring", "__cstring",
105 SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS,
106 BFD_MACH_O_S_CSTRING_LITERALS,
107 BFD_MACH_O_S_ATTR_NONE, 0},
108 { ".literal4", "__literal4",
109 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS,
110 BFD_MACH_O_S_ATTR_NONE, 2},
111 { ".literal8", "__literal8",
112 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS,
113 BFD_MACH_O_S_ATTR_NONE, 3},
114 { ".literal16", "__literal16",
115 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS,
116 BFD_MACH_O_S_ATTR_NONE, 4},
117 { ".constructor", "__constructor",
118 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
119 BFD_MACH_O_S_ATTR_NONE, 0},
120 { ".destructor", "__destructor",
121 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
122 BFD_MACH_O_S_ATTR_NONE, 0},
123 { ".eh_frame", "__eh_frame",
124 SEC_READONLY | SEC_LOAD, BFD_MACH_O_S_COALESCED,
125 BFD_MACH_O_S_ATTR_LIVE_SUPPORT
126 | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
127 | BFD_MACH_O_S_ATTR_NO_TOC, 3},
128 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 129 };
130
a4551119
TG		 131/* __DATA Segment. */
132static const mach_o_section_name_xlat data_section_names_xlat[] =
154a1ee5 133 {
a4551119
TG		 134 { ".data", "__data",
135 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
136 BFD_MACH_O_S_ATTR_NONE, 0},
137 { ".bss", "__bss",
138 SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL,
139 BFD_MACH_O_S_ATTR_NONE, 0},
140 { ".const_data", "__const",
141 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
142 BFD_MACH_O_S_ATTR_NONE, 0},
143 { ".static_data", "__static_data",
144 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
145 BFD_MACH_O_S_ATTR_NONE, 0},
146 { ".mod_init_func", "__mod_init_func",
147 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS,
148 BFD_MACH_O_S_ATTR_NONE, 2},
149 { ".mod_term_func", "__mod_term_func",
150 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS,
151 BFD_MACH_O_S_ATTR_NONE, 2},
152 { ".dyld", "__dyld",
153 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
154 BFD_MACH_O_S_ATTR_NONE, 0},
155 { ".cfstring", "__cfstring",
156 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
157 BFD_MACH_O_S_ATTR_NONE, 2},
158 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 159 };
160
a4551119
TG		 161/* __DWARF Segment. */
162static const mach_o_section_name_xlat dwarf_section_names_xlat[] =
154a1ee5 163 {
a4551119
TG		 164 { ".debug_frame", "__debug_frame",
165 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
166 BFD_MACH_O_S_ATTR_DEBUG, 0},
167 { ".debug_info", "__debug_info",
168 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
169 BFD_MACH_O_S_ATTR_DEBUG, 0},
170 { ".debug_abbrev", "__debug_abbrev",
171 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
172 BFD_MACH_O_S_ATTR_DEBUG, 0},
173 { ".debug_aranges", "__debug_aranges",
174 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
175 BFD_MACH_O_S_ATTR_DEBUG, 0},
176 { ".debug_macinfo", "__debug_macinfo",
177 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
178 BFD_MACH_O_S_ATTR_DEBUG, 0},
179 { ".debug_line", "__debug_line",
180 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
181 BFD_MACH_O_S_ATTR_DEBUG, 0},
182 { ".debug_loc", "__debug_loc",
183 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
184 BFD_MACH_O_S_ATTR_DEBUG, 0},
185 { ".debug_pubnames", "__debug_pubnames",
186 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
187 BFD_MACH_O_S_ATTR_DEBUG, 0},
188 { ".debug_pubtypes", "__debug_pubtypes",
189 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
190 BFD_MACH_O_S_ATTR_DEBUG, 0},
191 { ".debug_str", "__debug_str",
192 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
193 BFD_MACH_O_S_ATTR_DEBUG, 0},
194 { ".debug_ranges", "__debug_ranges",
195 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
196 BFD_MACH_O_S_ATTR_DEBUG, 0},
197 { ".debug_macro", "__debug_macro",
198 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
199 BFD_MACH_O_S_ATTR_DEBUG, 0},
200 { NULL, NULL, 0, 0, 0, 0}
154a1ee5
TG		 201 };
202
a4551119
TG		 203/* __OBJC Segment. */
204static const mach_o_section_name_xlat objc_section_names_xlat[] =
205 {
206 { ".objc_class", "__class",
207 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
208 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
209 { ".objc_meta_class", "__meta_class",
210 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
211 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
212 { ".objc_cat_cls_meth", "__cat_cls_meth",
213 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
214 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
215 { ".objc_cat_inst_meth", "__cat_inst_meth",
216 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
217 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
218 { ".objc_protocol", "__protocol",
219 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
220 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
221 { ".objc_string_object", "__string_object",
222 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
223 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
224 { ".objc_cls_meth", "__cls_meth",
225 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
226 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
227 { ".objc_inst_meth", "__inst_meth",
228 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
229 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
230 { ".objc_cls_refs", "__cls_refs",
231 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
232 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
233 { ".objc_message_refs", "__message_refs",
234 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
235 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
236 { ".objc_symbols", "__symbols",
237 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
238 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
239 { ".objc_category", "__category",
240 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
241 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
242 { ".objc_class_vars", "__class_vars",
243 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
244 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
245 { ".objc_instance_vars", "__instance_vars",
246 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
247 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
248 { ".objc_module_info", "__module_info",
249 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
250 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
251 { ".objc_selector_strs", "__selector_strs",
252 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS,
253 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
254 { ".objc_image_info", "__image_info",
255 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
256 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
257 { ".objc_selector_fixup", "__sel_fixup",
258 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
259 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
260 /* Objc V1 */
261 { ".objc1_class_ext", "__class_ext",
262 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
263 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
264 { ".objc1_property_list", "__property",
265 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
266 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
267 { ".objc1_protocol_ext", "__protocol_ext",
268 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
269 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
270 { NULL, NULL, 0, 0, 0, 0}
271 };
5a5cbf72 272
a4551119 273static const mach_o_segment_name_xlat segsec_names_xlat[] =
154a1ee5 274 {
154a1ee5
TG		 275 { "__TEXT", text_section_names_xlat },
276 { "__DATA", data_section_names_xlat },
5a5cbf72 277 { "__DWARF", dwarf_section_names_xlat },
a4551119 278 { "__OBJC", objc_section_names_xlat },
154a1ee5
TG		 279 { NULL, NULL }
280 };
281
2ca7691a
TG		 282static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF";
283
a4551119
TG		 284/* For both cases bfd-name => mach-o name and vice versa, the specific target
285 is checked before the generic. This allows a target (e.g. ppc for cstring)
286 to override the generic definition with a more specific one. */
154a1ee5 287
a4551119
TG		 288/* Fetch the translation from a Mach-O section designation (segment, section)
289 as a bfd short name, if one exists. Otherwise return NULL.
290
291 Allow the segment and section names to be unterminated 16 byte arrays. */
292
293const mach_o_section_name_xlat *
294bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname,
295 const char *sectname)
154a1ee5
TG		 296{
297 const struct mach_o_segment_name_xlat *seg;
a4551119
TG		 298 const mach_o_section_name_xlat *sec;
299 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
154a1ee5 300
a4551119
TG		 301 /* First try any target-specific translations defined... */
302 if (bed->segsec_names_xlat)
303 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
304 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
305 for (sec = seg->sections; sec->mach_o_name; sec++)
306 if (strncmp (sec->mach_o_name, sectname,
307 BFD_MACH_O_SECTNAME_SIZE) == 0)
308 return sec;
8462aec7 309
a4551119 310 /* ... and then the Mach-O generic ones. */
154a1ee5 311 for (seg = segsec_names_xlat; seg->segname; seg++)
a4551119
TG		 312 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
313 for (sec = seg->sections; sec->mach_o_name; sec++)
314 if (strncmp (sec->mach_o_name, sectname,
315 BFD_MACH_O_SECTNAME_SIZE) == 0)
316 return sec;
154a1ee5 317
a4551119 318 return NULL;
53d58d96
TG		 319}
320
a4551119
TG		 321/* If the bfd_name for this section is a 'canonical' form for which we
322 know the Mach-O data, return the segment name and the data for the
323 Mach-O equivalent. Otherwise return NULL. */
7ba695a9 324
a4551119
TG		 325const mach_o_section_name_xlat *
326bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name,
327 const char **segname)
53d58d96 328{
a4551119
TG		 329 const struct mach_o_segment_name_xlat *seg;
330 const mach_o_section_name_xlat *sec;
331 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
332 *segname = NULL;
333
334 if (bfd_name[0] != '.')
335 return NULL;
336
337 /* First try any target-specific translations defined... */
338 if (bed->segsec_names_xlat)
339 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
340 for (sec = seg->sections; sec->bfd_name; sec++)
341 if (strcmp (bfd_name, sec->bfd_name) == 0)
342 {
343 *segname = seg->segname;
344 return sec;
345 }
346
347 /* ... and then the Mach-O generic ones. */
348 for (seg = segsec_names_xlat; seg->segname; seg++)
349 for (sec = seg->sections; sec->bfd_name; sec++)
350 if (strcmp (bfd_name, sec->bfd_name) == 0)
351 {
352 *segname = seg->segname;
353 return sec;
354 }
355
356 return NULL;
357}
358
359/* Convert Mach-O section name to BFD.
360
361 Try to use standard/canonical names, for which we have tables including
362 default flag settings - which are returned. Otherwise forge a new name
363 in the form "<segmentname>.<sectionname>" this will be prefixed with
364 LC_SEGMENT. if the segment name does not begin with an underscore.
365
366 SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL-
367 terminated if the name length is exactly 16 bytes - but must be if the name
368 length is less than 16 characters). */
369
370void
371bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname,
372 const char *secname, const char **name,
373 flagword *flags)
374{
375 const mach_o_section_name_xlat *xlat;
53d58d96
TG		 376 char *res;
377 unsigned int len;
378 const char *pfx = "";
379
a4551119
TG		 380 *name = NULL;
381 *flags = SEC_NO_FLAGS;
53d58d96 382
a4551119
TG		 383 /* First search for a canonical name...
384 xlat will be non-null if there is an entry for segname, secname. */
385 xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname);
386 if (xlat)
387 {
388 len = strlen (xlat->bfd_name);
389 res = bfd_alloc (abfd, len+1);
390 if (res == NULL)
391 return;
392 memcpy (res, xlat->bfd_name, len+1);
393 *name = res;
394 *flags = xlat->bfd_flags;
395 return;
396 }
397
398 /* ... else we make up a bfd name from the segment concatenated with the
399 section. */
154a1ee5 400
7ba695a9 401 len = 16 + 1 + 16 + 1;
154a1ee5 402
c2f09c75
TG		 403 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
404 with an underscore. */
f1bde64c 405 if (segname[0] != '_')
c2f09c75
TG		 406 {
407 static const char seg_pfx[] = "LC_SEGMENT.";
408
409 pfx = seg_pfx;
410 len += sizeof (seg_pfx) - 1;
411 }
412
154a1ee5
TG		 413 res = bfd_alloc (abfd, len);
414 if (res == NULL)
8462aec7 415 return;
a4551119 416 snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname);
8462aec7 417 *name = res;
154a1ee5
TG		 418}
419
a4551119 420/* Convert a bfd section name to a Mach-O segment + section name.
154a1ee5 421
a4551119
TG		 422 If the name is a canonical one for which we have a Darwin match
423 return the translation table - which contains defaults for flags,
424 type, attribute and default alignment data.
425
426 Otherwise, expand the bfd_name (assumed to be in the form
427 "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
428
429static const mach_o_section_name_xlat *
154a1ee5
TG		 430bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
431 asection *sect,
432 bfd_mach_o_section *section)
433{
a4551119 434 const mach_o_section_name_xlat *xlat;
154a1ee5 435 const char *name = bfd_get_section_name (abfd, sect);
a4551119 436 const char *segname;
154a1ee5
TG		 437 const char *dot;
438 unsigned int len;
439 unsigned int seglen;
440 unsigned int seclen;
441
a4551119
TG		 442 memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1);
443 memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1);
444
445 /* See if is a canonical name ... */
446 xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname);
447 if (xlat)
448 {
449 strcpy (section->segname, segname);
450 strcpy (section->sectname, xlat->mach_o_name);
451 return xlat;
452 }
154a1ee5 453
a4551119
TG		 454 /* .. else we convert our constructed one back to Mach-O.
455 Strip LC_SEGMENT. prefix, if present. */
154a1ee5
TG		 456 if (strncmp (name, "LC_SEGMENT.", 11) == 0)
457 name += 11;
458
459 /* Find a dot. */
460 dot = strchr (name, '.');
461 len = strlen (name);
462
463 /* Try to split name into segment and section names. */
464 if (dot && dot != name)
465 {
466 seglen = dot - name;
467 seclen = len - (dot + 1 - name);
468
469 if (seglen < 16 && seclen < 16)
470 {
471 memcpy (section->segname, name, seglen);
472 section->segname[seglen] = 0;
473 memcpy (section->sectname, dot + 1, seclen);
474 section->sectname[seclen] = 0;
a4551119 475 return NULL;
154a1ee5
TG		 476 }
477 }
478
a4551119
TG		 479 /* The segment and section names are both missing - don't make them
480 into dots. */
481 if (dot && dot == name)
482 return NULL;
483
484 /* Just duplicate the name into both segment and section. */
154a1ee5
TG		 485 if (len > 16)
486 len = 16;
487 memcpy (section->segname, name, len);
488 section->segname[len] = 0;
489 memcpy (section->sectname, name, len);
490 section->sectname[len] = 0;
a4551119 491 return NULL;
3af9a47b
NC		 492}
493
b2b62060
TG		 494/* Return the size of an entry for section SEC.
495 Must be called only for symbol pointer section and symbol stubs
496 sections. */
497
c5012cd8 498unsigned int
b2b62060
TG		 499bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec)
500{
501 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
502 {
503 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
504 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
505 return bfd_mach_o_wide_p (abfd) ? 8 : 4;
506 case BFD_MACH_O_S_SYMBOL_STUBS:
507 return sec->reserved2;
508 default:
509 BFD_FAIL ();
510 return 0;
511 }
512}
513
514/* Return the number of indirect symbols for a section.
515 Must be called only for symbol pointer section and symbol stubs
516 sections. */
517
c5012cd8 518unsigned int
b2b62060
TG		 519bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec)
520{
521 unsigned int elsz;
522
523 elsz = bfd_mach_o_section_get_entry_size (abfd, sec);
524 if (elsz == 0)
525 return 0;
526 else
527 return sec->size / elsz;
528}
529
530
3af9a47b
NC		 531/* Copy any private info we understand from the input symbol
532 to the output symbol. */
533
154a1ee5 534bfd_boolean
116c20d2 535bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
b22161d6 536 asymbol *isymbol,
116c20d2 537 bfd *obfd ATTRIBUTE_UNUSED,
b22161d6
IS		 538 asymbol *osymbol)
539{
540 bfd_mach_o_asymbol *os, *is;
541 os = (bfd_mach_o_asymbol *)osymbol;
542 is = (bfd_mach_o_asymbol *)isymbol;
543 os->n_type = is->n_type;
544 os->n_sect = is->n_sect;
545 os->n_desc = is->n_desc;
546 os->symbol.udata.i = is->symbol.udata.i;
b34976b6 547 return TRUE;
3af9a47b
NC		 548}
549
550/* Copy any private info we understand from the input section
551 to the output section. */
552
154a1ee5 553bfd_boolean
116c20d2 554bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd ATTRIBUTE_UNUSED,
a4551119 555 asection *isection,
116c20d2 556 bfd *obfd ATTRIBUTE_UNUSED,
a4551119
TG		 557 asection *osection)
558{
559 if (osection->used_by_bfd == NULL)
560 osection->used_by_bfd = isection->used_by_bfd;
561 else
562 if (isection->used_by_bfd != NULL)
563 memcpy (osection->used_by_bfd, isection->used_by_bfd,
564 sizeof (bfd_mach_o_section));
565
566 if (osection->used_by_bfd != NULL)
567 ((bfd_mach_o_section *)osection->used_by_bfd)->bfdsection = osection;
568
b34976b6 569 return TRUE;
3af9a47b
NC		 570}
571
572/* Copy any private info we understand from the input bfd
573 to the output bfd. */
574
154a1ee5 575bfd_boolean
116c20d2 576bfd_mach_o_bfd_copy_private_bfd_data (bfd *ibfd, bfd *obfd)
3af9a47b 577{
154a1ee5
TG		 578 if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
579 || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
580 return TRUE;
581
3af9a47b
NC		 582 BFD_ASSERT (bfd_mach_o_valid (ibfd));
583 BFD_ASSERT (bfd_mach_o_valid (obfd));
584
154a1ee5
TG		 585 /* FIXME: copy commands. */
586
b34976b6 587 return TRUE;
3af9a47b
NC		 588}
589
0c9ef0f0
TG		 590/* This allows us to set up to 32 bits of flags (unless we invent some
591 fiendish scheme to subdivide). For now, we'll just set the file flags
592 without error checking - just overwrite. */
593
594bfd_boolean
595bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags)
596{
597 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
598
599 if (!mdata)
600 return FALSE;
601
602 mdata->header.flags = flags;
603 return TRUE;
604}
605
046b007d 606/* Count the total number of symbols. */
154a1ee5 607
3af9a47b 608static long
116c20d2 609bfd_mach_o_count_symbols (bfd *abfd)
3af9a47b 610{
046b007d 611 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 612
046b007d
TG		 613 if (mdata->symtab == NULL)
614 return 0;
615 return mdata->symtab->nsyms;
3af9a47b
NC		 616}
617
154a1ee5 618long
116c20d2 619bfd_mach_o_get_symtab_upper_bound (bfd *abfd)
3af9a47b
NC		 620{
621 long nsyms = bfd_mach_o_count_symbols (abfd);
622
3af9a47b
NC		 623 return ((nsyms + 1) * sizeof (asymbol *));
624}
625
154a1ee5 626long
116c20d2 627bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation)
3af9a47b 628{
046b007d 629 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 630 long nsyms = bfd_mach_o_count_symbols (abfd);
046b007d
TG		 631 bfd_mach_o_symtab_command *sym = mdata->symtab;
632 unsigned long j;
3af9a47b
NC		 633
634 if (nsyms < 0)
635 return nsyms;
636
092d27ff
TG		 637 if (nsyms == 0)
638 {
639 /* Do not try to read symbols if there are none. */
640 alocation[0] = NULL;
641 return 0;
642 }
643
afbb9e17 644 if (!bfd_mach_o_read_symtab_symbols (abfd))
3af9a47b 645 {
afbb9e17
TG		 646 (*_bfd_error_handler)
647 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
046b007d
TG		 648 return 0;
649 }
3af9a47b 650
046b007d 651 BFD_ASSERT (sym->symbols != NULL);
3af9a47b 652
046b007d
TG		 653 for (j = 0; j < sym->nsyms; j++)
654 alocation[j] = &sym->symbols[j].symbol;
3af9a47b 655
046b007d 656 alocation[j] = NULL;
a95a4550 657
3af9a47b
NC		 658 return nsyms;
659}
660
aeefa1c9
TG		 661/* Create synthetic symbols for indirect symbols. */
662
b2b62060
TG		 663long
664bfd_mach_o_get_synthetic_symtab (bfd *abfd,
665 long symcount ATTRIBUTE_UNUSED,
666 asymbol **syms ATTRIBUTE_UNUSED,
667 long dynsymcount ATTRIBUTE_UNUSED,
668 asymbol **dynsyms ATTRIBUTE_UNUSED,
669 asymbol **ret)
670{
671 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
672 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
673 bfd_mach_o_symtab_command *symtab = mdata->symtab;
674 asymbol *s;
675 unsigned long count, i, j, n;
676 size_t size;
677 char *names;
678 char *nul_name;
679
680 *ret = NULL;
681
aeefa1c9 682 /* Stop now if no symbols or no indirect symbols. */
b2b62060
TG		 683 if (dysymtab == NULL || symtab == NULL || symtab->symbols == NULL)
684 return 0;
685
686 if (dysymtab->nindirectsyms == 0)
687 return 0;
688
aeefa1c9
TG		 689 /* We need to allocate a bfd symbol for every indirect symbol and to
690 allocate the memory for its name. */
b2b62060
TG		 691 count = dysymtab->nindirectsyms;
692 size = count * sizeof (asymbol) + 1;
693
694 for (j = 0; j < count; j++)
695 {
696 unsigned int isym = dysymtab->indirect_syms[j];
aeefa1c9
TG		 697
698 /* Some indirect symbols are anonymous. */
b2b62060
TG		 699 if (isym < symtab->nsyms && symtab->symbols[isym].symbol.name)
700 size += strlen (symtab->symbols[isym].symbol.name) + sizeof ("$stub");
701 }
702
703 s = *ret = (asymbol *) bfd_malloc (size);
704 if (s == NULL)
705 return -1;
706 names = (char *) (s + count);
707 nul_name = names;
708 *names++ = 0;
709
710 n = 0;
711 for (i = 0; i < mdata->nsects; i++)
712 {
713 bfd_mach_o_section *sec = mdata->sections[i];
91d6fa6a 714 unsigned int first, last;
b2b62060
TG		 715 bfd_vma addr;
716 bfd_vma entry_size;
717
718 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
719 {
720 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
721 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
722 case BFD_MACH_O_S_SYMBOL_STUBS:
aeefa1c9 723 /* Only these sections have indirect symbols. */
b2b62060
TG		 724 first = sec->reserved1;
725 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
726 addr = sec->addr;
727 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
728 for (j = first; j < last; j++)
729 {
730 unsigned int isym = dysymtab->indirect_syms[j];
731
732 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
733 s->section = sec->bfdsection;
734 s->value = addr - sec->addr;
735 s->udata.p = NULL;
736
737 if (isym < symtab->nsyms
738 && symtab->symbols[isym].symbol.name)
739 {
740 const char *sym = symtab->symbols[isym].symbol.name;
741 size_t len;
742
743 s->name = names;
744 len = strlen (sym);
745 memcpy (names, sym, len);
746 names += len;
747 memcpy (names, "$stub", sizeof ("$stub"));
748 names += sizeof ("$stub");
749 }
750 else
751 s->name = nul_name;
752
753 addr += entry_size;
754 s++;
755 n++;
756 }
757 break;
758 default:
759 break;
760 }
761 }
762
763 return n;
764}
765
154a1ee5 766void
116c20d2
NC		 767bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
768 asymbol *symbol,
769 symbol_info *ret)
3af9a47b
NC		 770{
771 bfd_symbol_info (symbol, ret);
772}
773
154a1ee5 774void
116c20d2 775bfd_mach_o_print_symbol (bfd *abfd,
91d6fa6a 776 void * afile,
116c20d2
NC		 777 asymbol *symbol,
778 bfd_print_symbol_type how)
3af9a47b
NC		 779{
780 FILE *file = (FILE *) afile;
15e1c58a 781 const char *name;
92bc0e80 782 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
3af9a47b
NC		 783
784 switch (how)
785 {
786 case bfd_print_symbol_name:
787 fprintf (file, "%s", symbol->name);
788 break;
789 default:
91d6fa6a 790 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
92bc0e80
TG		 791 if (asym->n_type & BFD_MACH_O_N_STAB)
792 name = bfd_get_stab_name (asym->n_type);
15e1c58a 793 else
92bc0e80 794 switch (asym->n_type & BFD_MACH_O_N_TYPE)
15e1c58a
TG		 795 {
796 case BFD_MACH_O_N_UNDF:
e0ce1005
TG		 797 if (symbol->value == 0)
798 name = "UND";
799 else
800 name = "COM";
15e1c58a
TG		 801 break;
802 case BFD_MACH_O_N_ABS:
803 name = "ABS";
804 break;
805 case BFD_MACH_O_N_INDR:
806 name = "INDR";
807 break;
808 case BFD_MACH_O_N_PBUD:
809 name = "PBUD";
810 break;
811 case BFD_MACH_O_N_SECT:
812 name = "SECT";
813 break;
814 default:
815 name = "???";
816 break;
817 }
818 if (name == NULL)
819 name = "";
92bc0e80
TG		 820 fprintf (file, " %02x %-6s %02x %04x",
821 asym->n_type, name, asym->n_sect, asym->n_desc);
822 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
823 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
e0ce1005 824 fprintf (file, " [%s]", symbol->section->name);
15e1c58a 825 fprintf (file, " %s", symbol->name);
3af9a47b
NC		 826 }
827}
828
829static void
116c20d2 830bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
0b2de107 831 bfd_mach_o_cpu_subtype msubtype,
116c20d2
NC		 832 enum bfd_architecture *type,
833 unsigned long *subtype)
3af9a47b
NC		 834{
835 *subtype = bfd_arch_unknown;
836
837 switch (mtype)
838 {
0b2de107
TG		 839 case BFD_MACH_O_CPU_TYPE_VAX:
840 *type = bfd_arch_vax;
841 break;
842 case BFD_MACH_O_CPU_TYPE_MC680x0:
843 *type = bfd_arch_m68k;
844 break;
1e8a024a
TG		 845 case BFD_MACH_O_CPU_TYPE_I386:
846 *type = bfd_arch_i386;
847 *subtype = bfd_mach_i386_i386;
848 break;
849 case BFD_MACH_O_CPU_TYPE_X86_64:
850 *type = bfd_arch_i386;
851 *subtype = bfd_mach_x86_64;
852 break;
0b2de107
TG		 853 case BFD_MACH_O_CPU_TYPE_MIPS:
854 *type = bfd_arch_mips;
855 break;
856 case BFD_MACH_O_CPU_TYPE_MC98000:
857 *type = bfd_arch_m98k;
858 break;
859 case BFD_MACH_O_CPU_TYPE_HPPA:
860 *type = bfd_arch_hppa;
861 break;
862 case BFD_MACH_O_CPU_TYPE_ARM:
863 *type = bfd_arch_arm;
864 switch (msubtype)
865 {
866 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
867 *subtype = bfd_mach_arm_4T;
868 break;
869 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
870 *subtype = bfd_mach_arm_4T; /* Best fit ? */
871 break;
872 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
873 *subtype = bfd_mach_arm_5TE;
874 break;
875 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
876 *subtype = bfd_mach_arm_XScale;
877 break;
878 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
879 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
880 break;
881 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
882 default:
883 break;
884 }
885 break;
886 case BFD_MACH_O_CPU_TYPE_MC88000:
887 *type = bfd_arch_m88k;
888 break;
1e8a024a
TG		 889 case BFD_MACH_O_CPU_TYPE_SPARC:
890 *type = bfd_arch_sparc;
891 *subtype = bfd_mach_sparc;
892 break;
0b2de107
TG		 893 case BFD_MACH_O_CPU_TYPE_I860:
894 *type = bfd_arch_i860;
895 break;
896 case BFD_MACH_O_CPU_TYPE_ALPHA:
897 *type = bfd_arch_alpha;
898 break;
1e8a024a
TG		 899 case BFD_MACH_O_CPU_TYPE_POWERPC:
900 *type = bfd_arch_powerpc;
c2f09c75 901 *subtype = bfd_mach_ppc;
1e8a024a
TG		 902 break;
903 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
904 *type = bfd_arch_powerpc;
c2f09c75 905 *subtype = bfd_mach_ppc64;
1e8a024a 906 break;
3af9a47b 907 default:
1e8a024a
TG		 908 *type = bfd_arch_unknown;
909 break;
3af9a47b
NC		 910 }
911}
a95a4550 912
154a1ee5 913static bfd_boolean
116c20d2
NC		 914bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
915{
46d1c23b 916 struct mach_o_header_external raw;
1e8a024a
TG		 917 unsigned int size;
918
c2f09c75 919 size = mach_o_wide_p (header) ?
154a1ee5 920 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
116c20d2 921
46d1c23b
TG		 922 bfd_h_put_32 (abfd, header->magic, raw.magic);
923 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
924 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
925 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
926 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
927 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
928 bfd_h_put_32 (abfd, header->flags, raw.flags);
116c20d2 929
c2f09c75 930 if (mach_o_wide_p (header))
46d1c23b 931 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1e8a024a 932
c2f09c75 933 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 934 || bfd_bwrite (&raw, size, abfd) != size)
154a1ee5 935 return FALSE;
116c20d2 936
154a1ee5 937 return TRUE;
116c20d2
NC		 938}
939
940static int
ab273af8 941bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
116c20d2
NC		 942{
943 bfd_mach_o_thread_command *cmd = &command->command.thread;
944 unsigned int i;
46d1c23b 945 struct mach_o_thread_command_external raw;
92bc0e80 946 unsigned int offset;
116c20d2
NC		 947
948 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
949 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
950
951 offset = 8;
116c20d2
NC		 952 for (i = 0; i < cmd->nflavours; i++)
953 {
954 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
46d1c23b
TG		 955 BFD_ASSERT (cmd->flavours[i].offset ==
956 (command->offset + offset + BFD_MACH_O_LC_SIZE));
116c20d2 957
46d1c23b
TG		 958 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
959 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
116c20d2 960
c2f09c75 961 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 962 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
116c20d2
NC		 963 return -1;
964
46d1c23b 965 offset += cmd->flavours[i].size + sizeof (raw);
116c20d2
NC		 966 }
967
968 return 0;
969}
970
92bc0e80
TG		 971long
972bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
973 asection *asect)
974{
975 return (asect->reloc_count + 1) * sizeof (arelent *);
976}
977
b32e07d7 978static int
46d1c23b
TG		 979bfd_mach_o_canonicalize_one_reloc (bfd *abfd,
980 struct mach_o_reloc_info_external *raw,
b32e07d7 981 arelent *res, asymbol **syms)
92bc0e80 982{
046b007d 983 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
92bc0e80 984 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
b32e07d7
TG		 985 bfd_mach_o_reloc_info reloc;
986 bfd_vma addr;
987 bfd_vma symnum;
988 asymbol **sym;
989
46d1c23b
TG		 990 addr = bfd_get_32 (abfd, raw->r_address);
991 symnum = bfd_get_32 (abfd, raw->r_symbolnum);
b32e07d7
TG		 992
993 if (addr & BFD_MACH_O_SR_SCATTERED)
994 {
995 unsigned int j;
996
997 /* Scattered relocation.
998 Extract section and offset from r_value. */
999 res->sym_ptr_ptr = NULL;
1000 res->addend = 0;
1001 for (j = 0; j < mdata->nsects; j++)
1002 {
1003 bfd_mach_o_section *sect = mdata->sections[j];
1004 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1005 {
1006 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1007 res->addend = symnum - sect->addr;
1008 break;
1009 }
1010 }
1011 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
1012 reloc.r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1013 reloc.r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1014 reloc.r_pcrel = addr & BFD_MACH_O_SR_PCREL;
1015 reloc.r_scattered = 1;
1016 }
1017 else
1018 {
1019 unsigned int num = BFD_MACH_O_GET_R_SYMBOLNUM (symnum);
1020 res->addend = 0;
1021 res->address = addr;
1022 if (symnum & BFD_MACH_O_R_EXTERN)
06988dfc
TG		 1023 {
1024 sym = syms + num;
1025 reloc.r_extern = 1;
1026 }
b32e07d7
TG		 1027 else
1028 {
1029 BFD_ASSERT (num != 0);
1030 BFD_ASSERT (num <= mdata->nsects);
1031 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1523fa24
TG		 1032 /* For a symbol defined in section S, the addend (stored in the
1033 binary) contains the address of the section. To comply with
1034 bfd conventio, substract the section address.
1035 Use the address from the header, so that the user can modify
1036 the vma of the section. */
1037 res->addend = -mdata->sections[num - 1]->addr;
06988dfc 1038 reloc.r_extern = 0;
b32e07d7
TG		 1039 }
1040 res->sym_ptr_ptr = sym;
1041 reloc.r_type = BFD_MACH_O_GET_R_TYPE (symnum);
1042 reloc.r_length = BFD_MACH_O_GET_R_LENGTH (symnum);
1043 reloc.r_pcrel = (symnum & BFD_MACH_O_R_PCREL) ? 1 : 0;
1044 reloc.r_scattered = 0;
1045 }
1046
1047 if (!(*bed->_bfd_mach_o_swap_reloc_in)(res, &reloc))
1048 return -1;
1049 return 0;
1050}
1051
1052static int
1053bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1054 unsigned long count,
1055 arelent *res, asymbol **syms)
1056{
92bc0e80 1057 unsigned long i;
46d1c23b 1058 struct mach_o_reloc_info_external *native_relocs;
92bc0e80
TG		 1059 bfd_size_type native_size;
1060
92bc0e80 1061 /* Allocate and read relocs. */
b32e07d7 1062 native_size = count * BFD_MACH_O_RELENT_SIZE;
46d1c23b
TG		 1063 native_relocs =
1064 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
92bc0e80
TG		 1065 if (native_relocs == NULL)
1066 return -1;
1067
b32e07d7 1068 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
92bc0e80 1069 || bfd_bread (native_relocs, native_size, abfd) != native_size)
b32e07d7
TG		 1070 goto err;
1071
1072 for (i = 0; i < count; i++)
92bc0e80 1073 {
46d1c23b
TG		 1074 if (bfd_mach_o_canonicalize_one_reloc (abfd, &native_relocs[i],
1075 &res[i], syms) < 0)
b32e07d7 1076 goto err;
92bc0e80 1077 }
b32e07d7
TG		 1078 free (native_relocs);
1079 return i;
1080 err:
1081 free (native_relocs);
1082 return -1;
1083}
1084
1085long
1086bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1087 arelent **rels, asymbol **syms)
1088{
1089 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1090 unsigned long i;
1091 arelent *res;
1092
1093 if (asect->reloc_count == 0)
1094 return 0;
1095
1096 /* No need to go further if we don't know how to read relocs. */
1097 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1098 return 0;
92bc0e80 1099
dff55db0 1100 if (asect->relocation == NULL)
92bc0e80 1101 {
dff55db0
TG		 1102 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1103 if (res == NULL)
1104 return -1;
1105
1106 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1107 asect->reloc_count, res, syms) < 0)
1108 {
1109 free (res);
1110 return -1;
1111 }
1112 asect->relocation = res;
92bc0e80
TG		 1113 }
1114
dff55db0 1115 res = asect->relocation;
92bc0e80 1116 for (i = 0; i < asect->reloc_count; i++)
b32e07d7
TG		 1117 rels[i] = &res[i];
1118 rels[i] = NULL;
92bc0e80 1119
b32e07d7
TG		 1120 return i;
1121}
92bc0e80 1122
b32e07d7
TG		 1123long
1124bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1125{
1126 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
92bc0e80 1127
b32e07d7
TG		 1128 if (mdata->dysymtab == NULL)
1129 return 1;
dff55db0 1130 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
b32e07d7
TG		 1131 * sizeof (arelent *);
1132}
92bc0e80 1133
b32e07d7
TG		 1134long
1135bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1136 struct bfd_symbol **syms)
1137{
1138 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1139 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1140 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1141 unsigned long i;
1142 arelent *res;
1143
1144 if (dysymtab == NULL)
1145 return 0;
1146 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1147 return 0;
1148
1149 /* No need to go further if we don't know how to read relocs. */
1150 if (bed->_bfd_mach_o_swap_reloc_in == NULL)
1151 return 0;
1152
dff55db0 1153 if (mdata->dyn_reloc_cache == NULL)
b32e07d7 1154 {
dff55db0
TG		 1155 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1156 * sizeof (arelent));
1157 if (res == NULL)
1158 return -1;
b32e07d7 1159
dff55db0
TG		 1160 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1161 dysymtab->nextrel, res, syms) < 0)
1162 {
1163 free (res);
1164 return -1;
1165 }
1166
1167 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1168 dysymtab->nlocrel,
1169 res + dysymtab->nextrel, syms) < 0)
1170 {
1171 free (res);
1172 return -1;
1173 }
1174
1175 mdata->dyn_reloc_cache = res;
b32e07d7
TG		 1176 }
1177
dff55db0 1178 res = mdata->dyn_reloc_cache;
b32e07d7
TG		 1179 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1180 rels[i] = &res[i];
1181 rels[i] = NULL;
92bc0e80
TG		 1182 return i;
1183}
1184
1185static bfd_boolean
ab273af8 1186bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
92bc0e80 1187{
92bc0e80
TG		 1188 unsigned int i;
1189 arelent **entries;
1190 asection *sec;
1191 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1192
1193 sec = section->bfdsection;
1194 if (sec->reloc_count == 0)
1195 return TRUE;
1196
1197 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1198 return TRUE;
1199
92bc0e80
TG		 1200 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1201 return FALSE;
1202
1203 /* Convert and write. */
1204 entries = section->bfdsection->orelocation;
1205 for (i = 0; i < section->nreloc; i++)
1206 {
1207 arelent *rel = entries[i];
46d1c23b 1208 struct mach_o_reloc_info_external raw;
92bc0e80
TG		 1209 bfd_mach_o_reloc_info info, *pinfo = &info;
1210
1211 /* Convert relocation to an intermediate representation. */
1212 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1213 return FALSE;
1214
1215 /* Lower the relocation info. */
1216 if (pinfo->r_scattered)
1217 {
1218 unsigned long v;
1219
1220 v = BFD_MACH_O_SR_SCATTERED
1221 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1222 | BFD_MACH_O_SET_SR_LENGTH(pinfo->r_length)
1223 | BFD_MACH_O_SET_SR_TYPE(pinfo->r_type)
1224 | BFD_MACH_O_SET_SR_ADDRESS(pinfo->r_address);
46d1c23b
TG		 1225 /* Note: scattered relocs have field in reverse order... */
1226 bfd_put_32 (abfd, v, raw.r_address);
1227 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
92bc0e80
TG		 1228 }
1229 else
1230 {
1231 unsigned long v;
1232
46d1c23b 1233 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
92bc0e80
TG		 1234 v = BFD_MACH_O_SET_R_SYMBOLNUM (pinfo->r_value)
1235 | (pinfo->r_pcrel ? BFD_MACH_O_R_PCREL : 0)
1236 | BFD_MACH_O_SET_R_LENGTH (pinfo->r_length)
1237 | (pinfo->r_extern ? BFD_MACH_O_R_EXTERN : 0)
1238 | BFD_MACH_O_SET_R_TYPE (pinfo->r_type);
46d1c23b 1239 bfd_put_32 (abfd, v, raw.r_symbolnum);
92bc0e80
TG		 1240 }
1241
46d1c23b 1242 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
92bc0e80
TG		 1243 != BFD_MACH_O_RELENT_SIZE)
1244 return FALSE;
1245 }
1246 return TRUE;
1247}
1248
116c20d2 1249static int
ab273af8 1250bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1251{
46d1c23b
TG		 1252 struct mach_o_section_32_external raw;
1253
1254 memcpy (raw.sectname, section->sectname, 16);
72b5104c 1255 memcpy (raw.segname, section->segname, 16);
46d1c23b
TG		 1256 bfd_h_put_32 (abfd, section->addr, raw.addr);
1257 bfd_h_put_32 (abfd, section->size, raw.size);
1258 bfd_h_put_32 (abfd, section->offset, raw.offset);
1259 bfd_h_put_32 (abfd, section->align, raw.align);
1260 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1261 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1262 bfd_h_put_32 (abfd, section->flags, raw.flags);
1263 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1264 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1265
1266 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
92bc0e80 1267 != BFD_MACH_O_SECTION_SIZE)
116c20d2
NC		 1268 return -1;
1269
1270 return 0;
1271}
1272
1273static int
ab273af8 1274bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
116c20d2 1275{
46d1c23b
TG		 1276 struct mach_o_section_64_external raw;
1277
1278 memcpy (raw.sectname, section->sectname, 16);
1279 memcpy (raw.segname, section->segname, 16);
1280 bfd_h_put_64 (abfd, section->addr, raw.addr);
1281 bfd_h_put_64 (abfd, section->size, raw.size);
1282 bfd_h_put_32 (abfd, section->offset, raw.offset);
1283 bfd_h_put_32 (abfd, section->align, raw.align);
1284 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1285 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1286 bfd_h_put_32 (abfd, section->flags, raw.flags);
1287 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1288 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1289 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1290
1291 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
92bc0e80 1292 != BFD_MACH_O_SECTION_64_SIZE)
116c20d2
NC		 1293 return -1;
1294
1e8a024a
TG		 1295 return 0;
1296}
1297
1298static int
ab273af8 1299bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1300{
46d1c23b 1301 struct mach_o_segment_command_32_external raw;
1e8a024a 1302 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1303 bfd_mach_o_section *sec;
1e8a024a 1304
c2f09c75
TG		 1305 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1306
f1bde64c
TG		 1307 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1308 if (!bfd_mach_o_write_relocs (abfd, sec))
92bc0e80 1309 return -1;
c2f09c75 1310
46d1c23b
TG		 1311 memcpy (raw.segname, seg->segname, 16);
1312 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1313 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1314 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1315 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1316 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1317 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1318 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1319 bfd_h_put_32 (abfd, seg->flags, raw.flags);
c2f09c75 1320
46d1c23b
TG		 1321 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1322 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
c2f09c75 1323 return -1;
1e8a024a 1324
f1bde64c
TG		 1325 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1326 if (bfd_mach_o_write_section_32 (abfd, sec))
92bc0e80 1327 return -1;
1e8a024a 1328
116c20d2
NC		 1329 return 0;
1330}
1331
1e8a024a 1332static int
ab273af8 1333bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 1334{
46d1c23b 1335 struct mach_o_segment_command_64_external raw;
c2f09c75 1336 bfd_mach_o_segment_command *seg = &command->command.segment;
f1bde64c 1337 bfd_mach_o_section *sec;
c2f09c75
TG		 1338
1339 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1340
f1bde64c
TG		 1341 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1342 if (!bfd_mach_o_write_relocs (abfd, sec))
92bc0e80 1343 return -1;
c2f09c75 1344
46d1c23b
TG		 1345 memcpy (raw.segname, seg->segname, 16);
1346 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1347 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1348 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1349 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1350 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1351 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1352 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1353 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1354
1355 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1356 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
c2f09c75
TG		 1357 return -1;
1358
f1bde64c
TG		 1359 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1360 if (bfd_mach_o_write_section_64 (abfd, sec))
92bc0e80 1361 return -1;
c2f09c75 1362
c2f09c75 1363 return 0;
1e8a024a
TG		 1364}
1365
c2f09c75 1366static bfd_boolean
ab273af8 1367bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
116c20d2 1368{
046b007d 1369 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
116c20d2 1370 bfd_mach_o_symtab_command *sym = &command->command.symtab;
116c20d2 1371 unsigned long i;
c2f09c75 1372 unsigned int wide = bfd_mach_o_wide_p (abfd);
046b007d 1373 unsigned int symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
c2f09c75
TG		 1374 struct bfd_strtab_hash *strtab;
1375 asymbol **symbols = bfd_get_outsymbols (abfd);
1376
1377 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1378
1379 /* Write the symbols first. */
92bc0e80
TG		 1380 mdata->filelen = FILE_ALIGN(mdata->filelen, wide ? 3 : 2);
1381 sym->symoff = mdata->filelen;
c2f09c75
TG		 1382 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1383 return FALSE;
1384
1385 sym->nsyms = bfd_get_symcount (abfd);
92bc0e80 1386 mdata->filelen += sym->nsyms * symlen;
c2f09c75
TG		 1387
1388 strtab = _bfd_stringtab_init ();
1389 if (strtab == NULL)
1390 return FALSE;
116c20d2 1391
a4551119
TG		 1392 if (sym->nsyms > 0)
1393 /* Although we don't strictly need to do this, for compatibility with
1394 Darwin system tools, actually output an empty string for the index
1395 0 entry. */
1396 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1397
116c20d2
NC		 1398 for (i = 0; i < sym->nsyms; i++)
1399 {
91d6fa6a 1400 bfd_size_type str_index;
92bc0e80 1401 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
7f307238 1402
92bc0e80 1403 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
7f307238 1404 /* An index of 0 always means the empty string. */
91d6fa6a 1405 str_index = 0;
c2f09c75
TG		 1406 else
1407 {
91d6fa6a 1408 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
7f307238 1409
91d6fa6a 1410 if (str_index == (bfd_size_type) -1)
c2f09c75
TG		 1411 goto err;
1412 }
46d1c23b 1413
c2f09c75 1414 if (wide)
46d1c23b
TG		 1415 {
1416 struct mach_o_nlist_64_external raw;
1417
1418 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1419 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1420 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1421 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1422 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1423 raw.n_value);
1424
1425 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1426 goto err;
1427 }
c2f09c75 1428 else
46d1c23b
TG		 1429 {
1430 struct mach_o_nlist_external raw;
116c20d2 1431
46d1c23b
TG		 1432 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1433 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1434 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1435 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1436 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1437 raw.n_value);
1438
1439 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1440 goto err;
1441 }
116c20d2 1442 }
c2f09c75 1443 sym->strsize = _bfd_stringtab_size (strtab);
92bc0e80
TG		 1444 sym->stroff = mdata->filelen;
1445 mdata->filelen += sym->strsize;
116c20d2 1446
c2f09c75
TG		 1447 if (_bfd_stringtab_emit (abfd, strtab) != TRUE)
1448 goto err;
1449 _bfd_stringtab_free (strtab);
116c20d2 1450
c2f09c75 1451 /* The command. */
46d1c23b
TG		 1452 {
1453 struct mach_o_symtab_command_external raw;
116c20d2 1454
46d1c23b
TG		 1455 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1456 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1457 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1458 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1459
1460 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1461 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1462 return FALSE;
1463 }
116c20d2 1464
c2f09c75 1465 return TRUE;
116c20d2 1466
c2f09c75
TG		 1467 err:
1468 _bfd_stringtab_free (strtab);
1469 return FALSE;
116c20d2
NC		 1470}
1471
7f307238
IS		 1472/* Write a dysymtab command.
1473 TODO: Possibly coalesce writes of smaller objects. */
1474
1475static bfd_boolean
1476bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
1477{
1478 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
1479
1480 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
1481
1482 if (cmd->nmodtab != 0)
1483 {
1484 unsigned int i;
1485
1486 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
1487 return FALSE;
1488
1489 for (i = 0; i < cmd->nmodtab; i++)
1490 {
1491 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
1492 unsigned int iinit;
1493 unsigned int ninit;
1494
1495 iinit = module->iinit & 0xffff;
1496 iinit |= ((module->iterm & 0xffff) << 16);
1497
1498 ninit = module->ninit & 0xffff;
1499 ninit |= ((module->nterm & 0xffff) << 16);
1500
1501 if (bfd_mach_o_wide_p (abfd))
1502 {
1503 struct mach_o_dylib_module_64_external w;
1504
1505 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
1506 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
1507 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
1508 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
1509 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
1510 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
1511 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
1512 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
1513 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
1514 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
1515 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
1516 bfd_h_put_64 (abfd, module->objc_module_info_addr,
1517 &w.objc_module_info_addr);
1518 bfd_h_put_32 (abfd, module->objc_module_info_size,
1519 &w.objc_module_info_size);
1520
1521 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
1522 return FALSE;
1523 }
1524 else
1525 {
1526 struct mach_o_dylib_module_external n;
1527
1528 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
1529 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
1530 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
1531 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
1532 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
1533 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
1534 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
1535 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
1536 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
1537 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
1538 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
1539 bfd_h_put_32 (abfd, module->objc_module_info_addr,
1540 &n.objc_module_info_addr);
1541 bfd_h_put_32 (abfd, module->objc_module_info_size,
1542 &n.objc_module_info_size);
1543
1544 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
1545 return FALSE;
1546 }
1547 }
1548 }
1549
1550 if (cmd->ntoc != 0)
1551 {
1552 unsigned int i;
1553
1554 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
1555 return FALSE;
1556
1557 for (i = 0; i < cmd->ntoc; i++)
1558 {
1559 struct mach_o_dylib_table_of_contents_external raw;
1560 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
1561
1562 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
1563 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
1564
1565 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1566 return FALSE;
1567 }
1568 }
1569
1570 if (cmd->nindirectsyms > 0)
1571 {
1572 unsigned int i;
1573
1574 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
1575 return FALSE;
1576
1577 for (i = 0; i < cmd->nindirectsyms; ++i)
1578 {
1579 unsigned char raw[4];
1580
1581 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
1582 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
1583 return FALSE;
1584 }
1585 }
1586
1587 if (cmd->nextrefsyms != 0)
1588 {
1589 unsigned int i;
1590
1591 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
1592 return FALSE;
1593
1594 for (i = 0; i < cmd->nextrefsyms; i++)
1595 {
1596 unsigned long v;
1597 unsigned char raw[4];
1598 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
1599
1600 /* Fields isym and flags are written as bit-fields, thus we need
1601 a specific processing for endianness. */
1602
1603 if (bfd_big_endian (abfd))
1604 {
1605 v = ((ref->isym & 0xffffff) << 8);
1606 v |= ref->flags & 0xff;
1607 }
1608 else
1609 {
1610 v = ref->isym & 0xffffff;
1611 v |= ((ref->flags & 0xff) << 24);
1612 }
1613
1614 bfd_h_put_32 (abfd, v, raw);
1615 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
1616 return FALSE;
1617 }
1618 }
1619
1620 /* The command. */
1621 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
1622 return FALSE;
1623 else
1624 {
1625 struct mach_o_dysymtab_command_external raw;
1626
1627 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
1628 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
1629 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
1630 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
1631 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
1632 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
1633 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
1634 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
1635 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
1636 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
1637 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
1638 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
1639 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
1640 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
1641 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
1642 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
1643 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
1644 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
1645
1646 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1647 return FALSE;
1648 }
1649
1650 return TRUE;
1651}
1652
1653static unsigned
b22161d6 1654bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
7f307238 1655{
b22161d6 1656 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
68588f95
IS		 1657
1658 /* Just leave debug symbols where they are (pretend they are local, and
1659 then they will just be sorted on position). */
b22161d6 1660 if (s->n_type & BFD_MACH_O_N_STAB)
68588f95
IS		 1661 return 0;
1662
7f307238 1663 /* Local (we should never see an undefined local AFAICT). */
b22161d6 1664 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
7f307238
IS		 1665 return 0;
1666
1667 /* Common symbols look like undefined externs. */
68588f95 1668 if (mtyp == BFD_MACH_O_N_UNDF)
7f307238
IS		 1669 return 2;
1670
b22161d6 1671 /* A defined non-local, non-debug symbol. */
7f307238
IS		 1672 return 1;
1673}
1674
1675static int
1676bfd_mach_o_cf_symbols (const void *a, const void *b)
1677{
1678 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
1679 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
1680 unsigned int soa, sob;
1681
b22161d6
IS		 1682 soa = bfd_mach_o_primary_symbol_sort_key (sa);
1683 sob = bfd_mach_o_primary_symbol_sort_key (sb);
7f307238
IS		 1684 if (soa < sob)
1685 return -1;
1686
1687 if (soa > sob)
1688 return 1;
1689
68588f95 1690 /* If it's local or stab, just preserve the input order. */
7f307238
IS		 1691 if (soa == 0)
1692 {
1693 if (sa->symbol.udata.i < sb->symbol.udata.i)
1694 return -1;
1695 if (sa->symbol.udata.i > sb->symbol.udata.i)
1696 return 1;
b22161d6
IS		 1697
1698 /* This is probably an error. */
7f307238
IS		 1699 return 0;
1700 }
1701
b22161d6
IS		 1702 /* The second sort key is name. */
1703 return strcmp (sa->symbol.name, sb->symbol.name);
7f307238
IS		 1704}
1705
1706/* Process the symbols.
1707
1708 This should be OK for single-module files - but it is not likely to work
1709 for multi-module shared libraries.
1710
1711 (a) If the application has not filled in the relevant mach-o fields, make
1712 an estimate.
1713
1714 (b) Order them, like this:
1715 ( i) local.
1716 (unsorted)
1717 ( ii) external defined
1718 (by name)
b22161d6 1719 (iii) external undefined/common
7f307238
IS		 1720 (by name)
1721 ( iv) common
1722 (by name)
b22161d6 1723*/
92bc0e80
TG		 1724
1725static bfd_boolean
b22161d6 1726bfd_mach_o_mangle_symbols (bfd *abfd)
92bc0e80
TG		 1727{
1728 unsigned long i;
1729 asymbol **symbols = bfd_get_outsymbols (abfd);
1730
7f307238
IS		 1731 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
1732 return TRUE;
1733
92bc0e80
TG		 1734 for (i = 0; i < bfd_get_symcount (abfd); i++)
1735 {
1736 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1737
b22161d6
IS		 1738 /* We use this value, which is out-of-range as a symbol index, to signal
1739 that the mach-o-specific data are not filled in and need to be created
1740 from the bfd values. It is much preferable for the application to do
1741 this, since more meaningful diagnostics can be made that way. */
1742
1743 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
92bc0e80 1744 {
b22161d6
IS		 1745 /* No symbol information has been set - therefore determine
1746 it from the bfd symbol flags/info. */
92bc0e80
TG		 1747 if (s->symbol.section == bfd_abs_section_ptr)
1748 s->n_type = BFD_MACH_O_N_ABS;
1749 else if (s->symbol.section == bfd_und_section_ptr)
1750 {
1751 s->n_type = BFD_MACH_O_N_UNDF;
1752 if (s->symbol.flags & BSF_WEAK)
1753 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
7f307238
IS		 1754 /* mach-o automatically makes undefined symbols extern. */
1755 s->n_type |= BFD_MACH_O_N_EXT;
b22161d6 1756 s->symbol.flags |= BSF_GLOBAL;
92bc0e80
TG		 1757 }
1758 else if (s->symbol.section == bfd_com_section_ptr)
b22161d6
IS		 1759 {
1760 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
1761 s->symbol.flags |= BSF_GLOBAL;
1762 }
92bc0e80
TG		 1763 else
1764 s->n_type = BFD_MACH_O_N_SECT;
1765
1766 if (s->symbol.flags & BSF_GLOBAL)
1767 s->n_type |= BFD_MACH_O_N_EXT;
1768 }
1769
7f307238 1770 /* Put the section index in, where required. */
68588f95 1771 if ((s->symbol.section != bfd_abs_section_ptr
92bc0e80
TG		 1772 && s->symbol.section != bfd_und_section_ptr
1773 && s->symbol.section != bfd_com_section_ptr)
68588f95
IS		 1774 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
1775 && s->symbol.name == NULL))
1776 s->n_sect = s->symbol.section->target_index;
92bc0e80 1777
b22161d6
IS		 1778 /* Number to preserve order for local and debug syms. */
1779 s->symbol.udata.i = i;
7f307238
IS		 1780 }
1781
b22161d6
IS		 1782 /* Sort the symbols. */
1783 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
1784 sizeof (asymbol *), bfd_mach_o_cf_symbols);
7f307238 1785
b22161d6
IS		 1786 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1787 {
1788 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1789 s->symbol.udata.i = i; /* renumber. */
7f307238
IS		 1790 }
1791
1792 return TRUE;
1793}
1794
1795/* We build a flat table of sections, which can be re-ordered if necessary.
1796 Fill in the section number and other mach-o-specific data. */
1797
1798static bfd_boolean
1799bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
1800{
1801 asection *sec;
1802 unsigned target_index;
1803 unsigned nsect;
1804
1805 nsect = bfd_count_sections (abfd);
1806
1807 /* Don't do it if it's already set - assume the application knows what it's
1808 doing. */
1809 if (mdata->nsects == nsect
1810 && (mdata->nsects == 0 || mdata->sections != NULL))
1811 return TRUE;
1812
1813 mdata->nsects = nsect;
1814 mdata->sections = bfd_alloc (abfd,
1815 mdata->nsects * sizeof (bfd_mach_o_section *));
1816 if (mdata->sections == NULL)
1817 return FALSE;
1818
1819 /* We need to check that this can be done... */
1820 if (nsect > 255)
1821 (*_bfd_error_handler) (_("mach-o: there are too many sections (%d)"
1822 " maximum is 255,\n"), nsect);
1823
1824 /* Create Mach-O sections.
1825 Section type, attribute and align should have been set when the
1826 section was created - either read in or specified. */
1827 target_index = 0;
1828 for (sec = abfd->sections; sec; sec = sec->next)
1829 {
1830 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
1831 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
1832
1833 mdata->sections[target_index] = msect;
1834
1835 msect->addr = bfd_get_section_vma (abfd, sec);
1836 msect->size = bfd_get_section_size (sec);
1837
1838 /* Use the largest alignment set, in case it was bumped after the
1839 section was created. */
1840 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
1841
1842 msect->offset = 0;
1843 sec->target_index = ++target_index;
92bc0e80 1844 }
7f307238 1845
92bc0e80
TG		 1846 return TRUE;
1847}
1848
154a1ee5 1849bfd_boolean
116c20d2 1850bfd_mach_o_write_contents (bfd *abfd)
3af9a47b
NC		 1851{
1852 unsigned int i;
046b007d 1853 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 1854
7f307238 1855 /* Make the commands, if not already present. */
92bc0e80
TG		 1856 if (mdata->header.ncmds == 0)
1857 if (!bfd_mach_o_build_commands (abfd))
1858 return FALSE;
1859
154a1ee5 1860 if (!bfd_mach_o_write_header (abfd, &mdata->header))
b34976b6 1861 return FALSE;
3af9a47b
NC		 1862
1863 for (i = 0; i < mdata->header.ncmds; i++)
1864 {
46d1c23b 1865 struct mach_o_load_command_external raw;
3af9a47b
NC		 1866 bfd_mach_o_load_command *cur = &mdata->commands[i];
1867 unsigned long typeflag;
1868
154a1ee5 1869 typeflag = cur->type | (cur->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
3af9a47b 1870
46d1c23b
TG		 1871 bfd_h_put_32 (abfd, typeflag, raw.cmd);
1872 bfd_h_put_32 (abfd, cur->len, raw.cmdsize);
3af9a47b 1873
c2f09c75 1874 if (bfd_seek (abfd, cur->offset, SEEK_SET) != 0
46d1c23b 1875 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
b34976b6 1876 return FALSE;
3af9a47b
NC		 1877
1878 switch (cur->type)
1879 {
1880 case BFD_MACH_O_LC_SEGMENT:
ab273af8 1881 if (bfd_mach_o_write_segment_32 (abfd, cur) != 0)
1e8a024a
TG		 1882 return FALSE;
1883 break;
1884 case BFD_MACH_O_LC_SEGMENT_64:
ab273af8 1885 if (bfd_mach_o_write_segment_64 (abfd, cur) != 0)
b34976b6 1886 return FALSE;
3af9a47b
NC		 1887 break;
1888 case BFD_MACH_O_LC_SYMTAB:
ab273af8 1889 if (!bfd_mach_o_write_symtab (abfd, cur))
b34976b6 1890 return FALSE;
3af9a47b 1891 break;
7f307238
IS		 1892 case BFD_MACH_O_LC_DYSYMTAB:
1893 if (!bfd_mach_o_write_dysymtab (abfd, cur))
1894 return FALSE;
1895 break;
3af9a47b
NC		 1896 case BFD_MACH_O_LC_SYMSEG:
1897 break;
1898 case BFD_MACH_O_LC_THREAD:
1899 case BFD_MACH_O_LC_UNIXTHREAD:
ab273af8 1900 if (bfd_mach_o_write_thread (abfd, cur) != 0)
b34976b6 1901 return FALSE;
3af9a47b
NC		 1902 break;
1903 case BFD_MACH_O_LC_LOADFVMLIB:
1904 case BFD_MACH_O_LC_IDFVMLIB:
1905 case BFD_MACH_O_LC_IDENT:
1906 case BFD_MACH_O_LC_FVMFILE:
1907 case BFD_MACH_O_LC_PREPAGE:
3af9a47b
NC		 1908 case BFD_MACH_O_LC_LOAD_DYLIB:
1909 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
1910 case BFD_MACH_O_LC_ID_DYLIB:
046b007d 1911 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 1912 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3af9a47b
NC		 1913 case BFD_MACH_O_LC_LOAD_DYLINKER:
1914 case BFD_MACH_O_LC_ID_DYLINKER:
1915 case BFD_MACH_O_LC_PREBOUND_DYLIB:
1916 case BFD_MACH_O_LC_ROUTINES:
1917 case BFD_MACH_O_LC_SUB_FRAMEWORK:
1918 break;
1919 default:
4a97a0e5
AM		 1920 (*_bfd_error_handler) (_("unable to write unknown load command 0x%lx"),
1921 (unsigned long) cur->type);
b34976b6 1922 return FALSE;
3af9a47b
NC		 1923 }
1924 }
1925
b34976b6 1926 return TRUE;
3af9a47b
NC		 1927}
1928
f1bde64c
TG		 1929static void
1930bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
1931 asection *sec)
1932{
1933 bfd_mach_o_section *s = (bfd_mach_o_section *)sec->used_by_bfd;
1934 if (seg->sect_head == NULL)
1935 seg->sect_head = s;
1936 else
1937 seg->sect_tail->next = s;
1938 seg->sect_tail = s;
1939}
1940
1941/* Create section Mach-O flags from BFD flags. */
1942
1943static void
1944bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED, asection *sec)
1945{
1946 flagword bfd_flags;
1947 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
1948
1949 /* Create default flags. */
1950 bfd_flags = bfd_get_section_flags (abfd, sec);
1951 if ((bfd_flags & SEC_CODE) == SEC_CODE)
1952 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
1953 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
1954 | BFD_MACH_O_S_REGULAR;
1955 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
1956 s->flags = BFD_MACH_O_S_ZEROFILL;
1957 else if (bfd_flags & SEC_DEBUGGING)
1958 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
1959 else
1960 s->flags = BFD_MACH_O_S_REGULAR;
1961}
1962
7f307238
IS		 1963/* Count the number of sections in the list for the segment named.
1964
1965 The special case of NULL or "" for the segment name is valid for
1966 an MH_OBJECT file and means 'all sections available'.
1967
1968 Requires that the sections table in mdata be filled in.
1969
1970 Returns the number of sections (0 is valid).
1971 Any number > 255 signals an invalid section count, although we will,
1972 perhaps, allow the file to be written (in line with Darwin tools up
1973 to XCode 4).
1974
1975 A section count of (unsigned long) -1 signals a definite error. */
1976
1977static unsigned long
1978bfd_mach_o_count_sections_for_seg (const char *segment,
1979 bfd_mach_o_data_struct *mdata)
1980{
1981 unsigned i,j;
1982 if (mdata == NULL || mdata->sections == NULL)
1983 return (unsigned long) -1;
1984
1985 /* The MH_OBJECT case, all sections are considered; Although nsects is
1986 is an unsigned long, the maximum valid section count is 255 and this
1987 will have been checked already by mangle_sections. */
1988 if (segment == NULL || segment[0] == '\0')
1989 return mdata->nsects;
1990
1991 /* Count the number of sections we see in this segment. */
1992 j = 0;
1993 for (i = 0; i < mdata->nsects; ++i)
1994 {
1995 bfd_mach_o_section *s = mdata->sections[i];
1996 if (strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
1997 j++;
1998 }
1999 return j;
2000}
2001
2002static bfd_boolean
2003bfd_mach_o_build_seg_command (const char *segment,
2004 bfd_mach_o_data_struct *mdata,
2005 bfd_mach_o_segment_command *seg)
2006{
2007 unsigned i;
2008 int is_mho = (segment == NULL || segment[0] == '\0');
2009
2010 /* Fill segment command. */
2011 if (is_mho)
2012 memset (seg->segname, 0, sizeof (seg->segname));
2013 else
2014 strncpy (seg->segname, segment, sizeof (seg->segname));
2015
2016 /* TODO: fix this up for non-MH_OBJECT cases. */
2017 seg->vmaddr = 0;
e5081f2f 2018 seg->vmsize = 0;
7f307238
IS		 2019
2020 seg->fileoff = mdata->filelen;
2021 seg->filesize = 0;
2022 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2023 | BFD_MACH_O_PROT_EXECUTE;
2024 seg->initprot = seg->maxprot;
2025 seg->flags = 0;
2026 seg->sect_head = NULL;
2027 seg->sect_tail = NULL;
2028
2029 /* Append sections to the segment. */
2030
2031 for (i = 0; i < mdata->nsects; ++i)
2032 {
2033 bfd_mach_o_section *s = mdata->sections[i];
2034 asection *sec = s->bfdsection;
2035
2036 /* If we're not making an MH_OBJECT, check whether this section is from
2037 our segment, and skip if not. Otherwise, just add all sections. */
2038 if (! is_mho
2039 && strncmp (segment, s->segname, BFD_MACH_O_SEGNAME_SIZE) != 0)
2040 continue;
2041
2042 bfd_mach_o_append_section_to_segment (seg, sec);
2043
e5081f2f
IS		 2044 s->offset = 0;
2045 if (s->size > 0)
2046 {
2047 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2048 seg->vmsize += s->size;
2049 }
2050
2051 /* Zerofill sections have zero file size & offset,
2052 and are not written. */
2053 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2054 || (s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2055 == BFD_MACH_O_S_GB_ZEROFILL)
2056 continue;
2057
2058 if (s->size > 0)
7f307238
IS		 2059 {
2060 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2061 s->offset = mdata->filelen;
2062 }
2063
2064 sec->filepos = s->offset;
2065
2066 mdata->filelen += s->size;
2067 }
2068
2069 seg->filesize = mdata->filelen - seg->fileoff;
bb76d940
IS		 2070 seg->filesize = FILE_ALIGN(seg->filesize, 2);
2071
2072 /* Allocate relocation room. */
2073 mdata->filelen = FILE_ALIGN(mdata->filelen, 2);
2074
2075 for (i = 0; i < mdata->nsects; ++i)
2076 {
2077 bfd_mach_o_section *ms = mdata->sections[i];
2078 asection *sec = ms->bfdsection;
2079
2080 if ((ms->nreloc = sec->reloc_count) == 0)
2081 {
2082 ms->reloff = 0;
2083 continue;
2084 }
2085 sec->rel_filepos = mdata->filelen;
2086 ms->reloff = sec->rel_filepos;
2087 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2088 }
7f307238
IS		 2089
2090 return TRUE;
2091}
2092
50d10658
IS		 2093/* Count the number of indirect symbols in the image.
2094 Requires that the sections are in their final order. */
2095
2096static unsigned int
2097bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
2098{
2099 unsigned int i;
2100 unsigned int nisyms = 0;
2101
2102 for (i = 0; i < mdata->nsects; ++i)
2103 {
2104 bfd_mach_o_section *sec = mdata->sections[i];
2105
2106 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2107 {
2108 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2109 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2110 case BFD_MACH_O_S_SYMBOL_STUBS:
2111 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2112 break;
2113 default:
2114 break;
2115 }
2116 }
2117 return nisyms;
2118}
2119
7f307238
IS		 2120static bfd_boolean
2121bfd_mach_o_build_dysymtab_command (bfd *abfd,
2122 bfd_mach_o_data_struct *mdata,
2123 bfd_mach_o_load_command *cmd)
2124{
2125 bfd_mach_o_dysymtab_command *dsym = &cmd->command.dysymtab;
2126
2127 /* TODO:
2128 We are not going to try and fill these in yet and, moreover, we are
2129 going to bail if they are already set. */
2130 if (dsym->nmodtab != 0
2131 || dsym->ntoc != 0
2132 || dsym->nextrefsyms != 0)
2133 {
2134 (*_bfd_error_handler) (_("sorry: modtab, toc and extrefsyms are not yet"
2135 " implemented for dysymtab commands."));
2136 return FALSE;
2137 }
2138
2139 dsym->ilocalsym = 0;
7f307238 2140
b22161d6 2141 if (bfd_get_symcount (abfd) > 0)
7f307238 2142 {
b22161d6
IS		 2143 asymbol **symbols = bfd_get_outsymbols (abfd);
2144 unsigned long i;
2145
2146 /* Count the number of each kind of symbol. */
2147 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2148 {
2149 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2150 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
2151 break;
2152 }
2153 dsym->nlocalsym = i;
2154 dsym->iextdefsym = i;
2155 for (; i < bfd_get_symcount (abfd); ++i)
2156 {
2157 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2158 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
2159 break;
2160 }
2161 dsym->nextdefsym = i - dsym->nlocalsym;
2162 dsym->iundefsym = dsym->nextdefsym + dsym->iextdefsym;
2163 dsym->nundefsym = bfd_get_symcount (abfd)
2164 - dsym->nlocalsym
2165 - dsym->nextdefsym;
2166 }
2167 else
2168 {
2169 dsym->nlocalsym = 0;
2170 dsym->iextdefsym = 0;
2171 dsym->nextdefsym = 0;
2172 dsym->iundefsym = 0;
2173 dsym->nundefsym = 0;
2174 }
2175
50d10658 2176 dsym->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
b22161d6
IS		 2177 if (dsym->nindirectsyms > 0)
2178 {
2179 unsigned i;
50d10658 2180 unsigned n;
7f307238
IS		 2181
2182 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2183 dsym->indirectsymoff = mdata->filelen;
b22161d6 2184 mdata->filelen += dsym->nindirectsyms * 4;
7f307238 2185
b22161d6 2186 dsym->indirect_syms = bfd_zalloc (abfd, dsym->nindirectsyms * 4);
7f307238
IS		 2187 if (dsym->indirect_syms == NULL)
2188 return FALSE;
50d10658
IS		 2189
2190 n = 0;
2191 for (i = 0; i < mdata->nsects; ++i)
7f307238 2192 {
50d10658
IS		 2193 bfd_mach_o_section *sec = mdata->sections[i];
2194
2195 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2196 {
2197 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2198 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2199 case BFD_MACH_O_S_SYMBOL_STUBS:
2200 {
2201 unsigned j, num;
2202 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
2203
2204 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2205 if (isyms == NULL || num == 0)
2206 break;
2207 /* Record the starting index in the reserved1 field. */
2208 sec->reserved1 = n;
2209 for (j = 0; j < num; j++, n++)
2210 {
2211 if (isyms[j] == NULL)
2212 dsym->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
2213 else
2214 dsym->indirect_syms[n] = isyms[j]->symbol.udata.i;
2215 }
2216 }
2217 break;
2218 default:
2219 break;
2220 }
7f307238
IS		 2221 }
2222 }
2223
2224 return TRUE;
2225}
2226
2227/* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2228 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2229 and copy functionality. */
154a1ee5
TG		 2230
2231bfd_boolean
2232bfd_mach_o_build_commands (bfd *abfd)
2233{
046b007d 2234 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bbd56171
IS		 2235 unsigned wide = mach_o_wide_p (&mdata->header);
2236 int segcmd_idx = -1;
2237 int symtab_idx = -1;
2238 int dysymtab_idx = -1;
2239 unsigned long base_offset = 0;
154a1ee5 2240
7f307238 2241 /* Return now if commands are already present. */
154a1ee5
TG		 2242 if (mdata->header.ncmds)
2243 return FALSE;
2244
7f307238 2245 /* Fill in the file type, if not already set. */
154a1ee5 2246
7f307238 2247 if (mdata->header.filetype == 0)
154a1ee5 2248 {
7f307238
IS		 2249 if (abfd->flags & EXEC_P)
2250 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2251 else if (abfd->flags & DYNAMIC)
2252 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2253 else
2254 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
154a1ee5 2255 }
7f307238
IS		 2256
2257 /* If hasn't already been done, flatten sections list, and sort
2258 if/when required. Must be done before the symbol table is adjusted,
2259 since that depends on properly numbered sections. */
2260 if (mdata->nsects == 0 || mdata->sections == NULL)
2261 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2262 return FALSE;
2263
2264 /* Order the symbol table, fill-in/check mach-o specific fields and
2265 partition out any indirect symbols. */
b22161d6 2266 if (!bfd_mach_o_mangle_symbols (abfd))
7f307238
IS		 2267 return FALSE;
2268
bbd56171
IS		 2269 /* Very simple command set (only really applicable to MH_OBJECTs):
2270 All the commands are optional - present only when there is suitable data.
2271 (i.e. it is valid to have an empty file)
2272
2273 a command (segment) to contain all the sections,
2274 command for the symbol table,
2275 a command for the dysymtab.
2276
2277 ??? maybe we should assert that this is an MH_OBJECT? */
2278
7f307238 2279 if (mdata->nsects > 0)
154a1ee5 2280 {
bbd56171 2281 segcmd_idx = 0;
7f307238 2282 mdata->header.ncmds = 1;
154a1ee5 2283 }
154a1ee5 2284
7f307238 2285 if (bfd_get_symcount (abfd) > 0)
bbd56171
IS		 2286 {
2287 mdata->header.ncmds++;
2288 symtab_idx = segcmd_idx + 1; /* 0 if the seg command is absent. */
2289 }
c2f09c75 2290
bbd56171
IS		 2291 /* FIXME:
2292 This is a rather crude test for whether we should build a dysymtab. */
2293 if (bfd_mach_o_should_emit_dysymtab ()
2294 && bfd_get_symcount (abfd))
2295 {
2296 mdata->header.ncmds++;
2297 /* If there should be a case where a dysymtab could be emitted without
2298 a symtab (seems improbable), this would need amending. */
2299 dysymtab_idx = symtab_idx + 1;
2300 }
154a1ee5 2301
bbd56171
IS		 2302 if (wide)
2303 base_offset = BFD_MACH_O_HEADER_64_SIZE;
2304 else
2305 base_offset = BFD_MACH_O_HEADER_SIZE;
c2f09c75 2306
bbd56171
IS		 2307 /* Well, we must have a header, at least. */
2308 mdata->filelen = base_offset;
f1bde64c 2309
bbd56171 2310 /* A bit unusual, but no content is valid;
7f307238
IS		 2311 as -n empty.s -o empty.o */
2312 if (mdata->header.ncmds == 0)
2313 return TRUE;
f1bde64c 2314
7f307238
IS		 2315 mdata->commands = bfd_zalloc (abfd, mdata->header.ncmds
2316 * sizeof (bfd_mach_o_load_command));
2317 if (mdata->commands == NULL)
2318 return FALSE;
2319
bbd56171 2320 if (segcmd_idx >= 0)
7f307238 2321 {
bbd56171
IS		 2322 bfd_mach_o_load_command *cmd = &mdata->commands[segcmd_idx];
2323 bfd_mach_o_segment_command *seg = &cmd->command.segment;
7f307238
IS		 2324
2325 /* Count the segctions in the special blank segment used for MH_OBJECT. */
2326 seg->nsects = bfd_mach_o_count_sections_for_seg (NULL, mdata);
2327 if (seg->nsects == (unsigned long) -1)
2328 return FALSE;
2329
2330 /* Init segment command. */
bbd56171 2331 cmd->offset = base_offset;
7f307238
IS		 2332 if (wide)
2333 {
2334 cmd->type = BFD_MACH_O_LC_SEGMENT_64;
7f307238
IS		 2335 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2336 + BFD_MACH_O_SECTION_64_SIZE * seg->nsects;
2337 }
92bc0e80 2338 else
7f307238
IS		 2339 {
2340 cmd->type = BFD_MACH_O_LC_SEGMENT;
7f307238
IS		 2341 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2342 + BFD_MACH_O_SECTION_SIZE * seg->nsects;
2343 }
bbd56171 2344
7f307238
IS		 2345 cmd->type_required = FALSE;
2346 mdata->header.sizeofcmds = cmd->len;
bbd56171 2347 mdata->filelen += cmd->len;
7f307238 2348 }
f1bde64c 2349
bbd56171 2350 if (symtab_idx >= 0)
7f307238
IS		 2351 {
2352 /* Init symtab command. */
bbd56171 2353 bfd_mach_o_load_command *cmd = &mdata->commands[symtab_idx];
7f307238 2354
bbd56171
IS		 2355 cmd->type = BFD_MACH_O_LC_SYMTAB;
2356 cmd->offset = base_offset;
2357 if (segcmd_idx >= 0)
2358 cmd->offset += mdata->commands[segcmd_idx].len;
2359
2360 cmd->len = sizeof (struct mach_o_symtab_command_external)
2361 + BFD_MACH_O_LC_SIZE;
2362 cmd->type_required = FALSE;
2363 mdata->header.sizeofcmds += cmd->len;
2364 mdata->filelen += cmd->len;
7f307238 2365 }
154a1ee5 2366
bbd56171
IS		 2367 /* If required, setup symtab command, see comment above about the quality
2368 of this test. */
2369 if (dysymtab_idx >= 0)
7f307238 2370 {
bbd56171
IS		 2371 bfd_mach_o_load_command *cmd = &mdata->commands[dysymtab_idx];
2372
7f307238 2373 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
bbd56171
IS		 2374 if (symtab_idx >= 0)
2375 cmd->offset = mdata->commands[symtab_idx].offset
2376 + mdata->commands[symtab_idx].len;
2377 else if (segcmd_idx >= 0)
2378 cmd->offset = mdata->commands[segcmd_idx].offset
2379 + mdata->commands[segcmd_idx].len;
2380 else
2381 cmd->offset = base_offset;
2382
7f307238 2383 cmd->type_required = FALSE;
bbd56171
IS		 2384 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2385 + BFD_MACH_O_LC_SIZE;
7f307238
IS		 2386
2387 mdata->header.sizeofcmds += cmd->len;
2388 mdata->filelen += cmd->len;
154a1ee5 2389 }
154a1ee5 2390
7f307238
IS		 2391 /* So, now we have sized the commands and the filelen set to that.
2392 Now we can build the segment command and set the section file offsets. */
bbd56171
IS		 2393 if (segcmd_idx >= 0
2394 && ! bfd_mach_o_build_seg_command
2395 (NULL, mdata, &mdata->commands[segcmd_idx].command.segment))
7f307238
IS		 2396 return FALSE;
2397
2398 /* If we're doing a dysymtab, cmd points to its load command. */
bbd56171 2399 if (dysymtab_idx >= 0
7f307238 2400 && ! bfd_mach_o_build_dysymtab_command (abfd, mdata,
bbd56171 2401 &mdata->commands[dysymtab_idx]))
7f307238
IS		 2402 return FALSE;
2403
2404 /* The symtab command is filled in when the symtab is written. */
154a1ee5
TG		 2405 return TRUE;
2406}
2407
2408/* Set the contents of a section. */
2409
2410bfd_boolean
2411bfd_mach_o_set_section_contents (bfd *abfd,
2412 asection *section,
2413 const void * location,
2414 file_ptr offset,
2415 bfd_size_type count)
2416{
2417 file_ptr pos;
2418
7f307238
IS		 2419 /* Trying to write the first section contents will trigger the creation of
2420 the load commands if they are not already present. */
154a1ee5
TG		 2421 if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd))
2422 return FALSE;
2423
2424 if (count == 0)
2425 return TRUE;
2426
2427 pos = section->filepos + offset;
2428 if (bfd_seek (abfd, pos, SEEK_SET) != 0
2429 || bfd_bwrite (location, count, abfd) != count)
2430 return FALSE;
2431
2432 return TRUE;
2433}
2434
2435int
116c20d2 2436bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
a6b96beb 2437 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3af9a47b
NC		 2438{
2439 return 0;
2440}
2441
2442/* Make an empty symbol. This is required only because
2443 bfd_make_section_anyway wants to create a symbol for the section. */
2444
154a1ee5 2445asymbol *
116c20d2 2446bfd_mach_o_make_empty_symbol (bfd *abfd)
3af9a47b 2447{
d3ce72d0
NC		 2448 asymbol *new_symbol;
2449
2450 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
2451 if (new_symbol == NULL)
2452 return new_symbol;
2453 new_symbol->the_bfd = abfd;
b22161d6 2454 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
d3ce72d0 2455 return new_symbol;
3af9a47b
NC		 2456}
2457
154a1ee5 2458static bfd_boolean
116c20d2 2459bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
3af9a47b 2460{
46d1c23b 2461 struct mach_o_header_external raw;
1e8a024a 2462 unsigned int size;
edeb6e24 2463 bfd_vma (*get32) (const void *) = NULL;
3af9a47b 2464
1e8a024a 2465 /* Just read the magic number. */
c2f09c75 2466 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 2467 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
154a1ee5 2468 return FALSE;
3af9a47b 2469
46d1c23b 2470 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b
NC		 2471 {
2472 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 2473 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a 2474 header->version = 1;
3af9a47b
NC		 2475 get32 = bfd_getb32;
2476 }
46d1c23b 2477 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b 2478 {
a95a4550 2479 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 2480 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a
TG		 2481 header->version = 1;
2482 get32 = bfd_getl32;
2483 }
46d1c23b 2484 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 2485 {
2486 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 2487 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a
TG		 2488 header->version = 2;
2489 get32 = bfd_getb32;
2490 }
46d1c23b 2491 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 2492 {
2493 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 2494 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a 2495 header->version = 2;
3af9a47b
NC		 2496 get32 = bfd_getl32;
2497 }
2498 else
2499 {
2500 header->byteorder = BFD_ENDIAN_UNKNOWN;
154a1ee5 2501 return FALSE;
3af9a47b 2502 }
a95a4550 2503
1e8a024a 2504 /* Once the size of the header is known, read the full header. */
c2f09c75 2505 size = mach_o_wide_p (header) ?
154a1ee5 2506 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1e8a024a 2507
c2f09c75 2508 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 2509 || bfd_bread (&raw, size, abfd) != size)
154a1ee5 2510 return FALSE;
1e8a024a 2511
46d1c23b
TG		 2512 header->cputype = (*get32) (raw.cputype);
2513 header->cpusubtype = (*get32) (raw.cpusubtype);
2514 header->filetype = (*get32) (raw.filetype);
2515 header->ncmds = (*get32) (raw.ncmds);
2516 header->sizeofcmds = (*get32) (raw.sizeofcmds);
2517 header->flags = (*get32) (raw.flags);
3af9a47b 2518
c2f09c75 2519 if (mach_o_wide_p (header))
46d1c23b 2520 header->reserved = (*get32) (raw.reserved);
1e8a024a 2521
154a1ee5 2522 return TRUE;
3af9a47b
NC		 2523}
2524
f1bde64c
TG		 2525bfd_boolean
2526bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
2527{
2528 bfd_mach_o_section *s;
a4551119 2529 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
f1bde64c
TG		 2530
2531 s = bfd_mach_o_get_mach_o_section (sec);
2532 if (s == NULL)
2533 {
2534 flagword bfd_flags;
a4551119 2535 static const mach_o_section_name_xlat * xlat;
f1bde64c
TG		 2536
2537 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
2538 if (s == NULL)
2539 return FALSE;
2540 sec->used_by_bfd = s;
2541 s->bfdsection = sec;
2542
a4551119
TG		 2543 /* Create the Darwin seg/sect name pair from the bfd name.
2544 If this is a canonical name for which a specific paiting exists
2545 there will also be defined flags, type, attribute and alignment
2546 values. */
2547 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
2548 if (xlat != NULL)
2549 {
2550 s->flags = xlat->macho_sectype | xlat->macho_secattr;
2551 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
2552 : bfdalign;
2553 bfd_set_section_alignment (abfd, sec, s->align);
2554 bfd_flags = bfd_get_section_flags (abfd, sec);
2555 if (bfd_flags == SEC_NO_FLAGS)
2556 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
2557 }
f1bde64c 2558 else
a4551119
TG		 2559 /* Create default flags. */
2560 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
f1bde64c
TG		 2561 }
2562
2563 return _bfd_generic_new_section_hook (abfd, sec);
2564}
2565
2566static void
2567bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
2568 unsigned long prot)
3af9a47b 2569{
117ed4f8 2570 flagword flags;
f1bde64c 2571 bfd_mach_o_section *section;
3af9a47b 2572
f1bde64c
TG		 2573 flags = bfd_get_section_flags (abfd, sec);
2574 section = bfd_mach_o_get_mach_o_section (sec);
3af9a47b 2575
a4551119
TG		 2576 /* TODO: see if we should use the xlat system for doing this by
2577 preference and fall back to this for unknown sections. */
2578
8462aec7 2579 if (flags == SEC_NO_FLAGS)
ef17cb22 2580 {
8462aec7
TG		 2581 /* Try to guess flags. */
2582 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
2583 flags = SEC_DEBUGGING;
2584 else
2585 {
2586 flags = SEC_ALLOC;
2587 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2588 != BFD_MACH_O_S_ZEROFILL)
2589 {
2590 flags |= SEC_LOAD;
2591 if (prot & BFD_MACH_O_PROT_EXECUTE)
2592 flags |= SEC_CODE;
2593 if (prot & BFD_MACH_O_PROT_WRITE)
2594 flags |= SEC_DATA;
2595 else if (prot & BFD_MACH_O_PROT_READ)
2596 flags |= SEC_READONLY;
2597 }
2598 }
ef17cb22 2599 }
15e1c58a
TG		 2600 else
2601 {
8462aec7
TG		 2602 if ((flags & SEC_DEBUGGING) == 0)
2603 flags |= SEC_ALLOC;
15e1c58a 2604 }
8462aec7
TG		 2605
2606 if (section->offset != 0)
2607 flags |= SEC_HAS_CONTENTS;
92bc0e80
TG		 2608 if (section->nreloc != 0)
2609 flags |= SEC_RELOC;
2610
f1bde64c
TG		 2611 bfd_set_section_flags (abfd, sec, flags);
2612
2613 sec->vma = section->addr;
2614 sec->lma = section->addr;
2615 sec->size = section->size;
2616 sec->filepos = section->offset;
2617 sec->alignment_power = section->align;
2618 sec->segment_mark = 0;
2619 sec->reloc_count = section->nreloc;
2620 sec->rel_filepos = section->reloff;
2621}
2622
2623static asection *
2624bfd_mach_o_make_bfd_section (bfd *abfd,
2625 const unsigned char *segname,
2626 const unsigned char *sectname)
2627{
2628 const char *sname;
2629 flagword flags;
a95a4550 2630
f1bde64c
TG		 2631 bfd_mach_o_convert_section_name_to_bfd
2632 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
2633 if (sname == NULL)
2634 return NULL;
3af9a47b 2635
f1bde64c 2636 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3af9a47b
NC		 2637}
2638
f1bde64c 2639static asection *
ab273af8 2640bfd_mach_o_read_section_32 (bfd *abfd,
ab273af8
TG		 2641 unsigned int offset,
2642 unsigned long prot)
3af9a47b 2643{
46d1c23b 2644 struct mach_o_section_32_external raw;
f1bde64c
TG		 2645 asection *sec;
2646 bfd_mach_o_section *section;
3af9a47b 2647
c2f09c75 2648 if (bfd_seek (abfd, offset, SEEK_SET) != 0
46d1c23b 2649 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
c2f09c75 2650 != BFD_MACH_O_SECTION_SIZE))
f1bde64c 2651 return NULL;
a95a4550 2652
5a5cbf72 2653 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 2654 if (sec == NULL)
2655 return NULL;
2656
2657 section = bfd_mach_o_get_mach_o_section (sec);
2658 memcpy (section->segname, raw.segname, sizeof (raw.segname));
2659 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
2660 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 2661 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 2662 section->addr = bfd_h_get_32 (abfd, raw.addr);
2663 section->size = bfd_h_get_32 (abfd, raw.size);
2664 section->offset = bfd_h_get_32 (abfd, raw.offset);
2665 section->align = bfd_h_get_32 (abfd, raw.align);
2666 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
2667 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
2668 section->flags = bfd_h_get_32 (abfd, raw.flags);
2669 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
2670 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
1e8a024a 2671 section->reserved3 = 0;
1e8a024a 2672
f1bde64c 2673 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
1e8a024a 2674
f1bde64c 2675 return sec;
1e8a024a
TG		 2676}
2677
f1bde64c 2678static asection *
ab273af8 2679bfd_mach_o_read_section_64 (bfd *abfd,
ab273af8
TG		 2680 unsigned int offset,
2681 unsigned long prot)
1e8a024a 2682{
46d1c23b 2683 struct mach_o_section_64_external raw;
f1bde64c
TG		 2684 asection *sec;
2685 bfd_mach_o_section *section;
1e8a024a 2686
c2f09c75 2687 if (bfd_seek (abfd, offset, SEEK_SET) != 0
46d1c23b 2688 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
c2f09c75 2689 != BFD_MACH_O_SECTION_64_SIZE))
f1bde64c
TG		 2690 return NULL;
2691
5a5cbf72 2692 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 2693 if (sec == NULL)
2694 return NULL;
1e8a024a 2695
f1bde64c
TG		 2696 section = bfd_mach_o_get_mach_o_section (sec);
2697 memcpy (section->segname, raw.segname, sizeof (raw.segname));
2698 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
2699 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 2700 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 2701 section->addr = bfd_h_get_64 (abfd, raw.addr);
2702 section->size = bfd_h_get_64 (abfd, raw.size);
2703 section->offset = bfd_h_get_32 (abfd, raw.offset);
2704 section->align = bfd_h_get_32 (abfd, raw.align);
2705 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
2706 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
2707 section->flags = bfd_h_get_32 (abfd, raw.flags);
2708 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
2709 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
2710 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3af9a47b 2711
f1bde64c 2712 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3af9a47b 2713
f1bde64c 2714 return sec;
3af9a47b
NC		 2715}
2716
f1bde64c 2717static asection *
ab273af8 2718bfd_mach_o_read_section (bfd *abfd,
ab273af8
TG		 2719 unsigned int offset,
2720 unsigned long prot,
2721 unsigned int wide)
1e8a024a
TG		 2722{
2723 if (wide)
f1bde64c 2724 return bfd_mach_o_read_section_64 (abfd, offset, prot);
1e8a024a 2725 else
f1bde64c 2726 return bfd_mach_o_read_section_32 (abfd, offset, prot);
1e8a024a
TG		 2727}
2728
afbb9e17 2729static bfd_boolean
ab273af8
TG		 2730bfd_mach_o_read_symtab_symbol (bfd *abfd,
2731 bfd_mach_o_symtab_command *sym,
2732 bfd_mach_o_asymbol *s,
2733 unsigned long i)
3af9a47b 2734{
046b007d 2735 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c2f09c75 2736 unsigned int wide = mach_o_wide_p (&mdata->header);
046b007d
TG		 2737 unsigned int symwidth =
2738 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
92bc0e80 2739 unsigned int symoff = sym->symoff + (i * symwidth);
46d1c23b 2740 struct mach_o_nlist_64_external raw;
3af9a47b
NC		 2741 unsigned char type = -1;
2742 unsigned char section = -1;
2743 short desc = -1;
1e8a024a 2744 symvalue value = -1;
3af9a47b
NC		 2745 unsigned long stroff = -1;
2746 unsigned int symtype = -1;
2747
2748 BFD_ASSERT (sym->strtab != NULL);
2749
c2f09c75 2750 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
46d1c23b 2751 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3af9a47b 2752 {
46d1c23b
TG		 2753 (*_bfd_error_handler)
2754 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
2755 symwidth, (unsigned long) symoff);
afbb9e17 2756 return FALSE;
3af9a47b
NC		 2757 }
2758
46d1c23b
TG		 2759 stroff = bfd_h_get_32 (abfd, raw.n_strx);
2760 type = bfd_h_get_8 (abfd, raw.n_type);
c2f09c75 2761 symtype = type & BFD_MACH_O_N_TYPE;
46d1c23b
TG		 2762 section = bfd_h_get_8 (abfd, raw.n_sect);
2763 desc = bfd_h_get_16 (abfd, raw.n_desc);
1e8a024a 2764 if (wide)
46d1c23b 2765 value = bfd_h_get_64 (abfd, raw.n_value);
1e8a024a 2766 else
46d1c23b 2767 value = bfd_h_get_32 (abfd, raw.n_value);
3af9a47b
NC		 2768
2769 if (stroff >= sym->strsize)
2770 {
46d1c23b
TG		 2771 (*_bfd_error_handler)
2772 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
2773 (unsigned long) stroff,
2774 (unsigned long) sym->strsize);
afbb9e17 2775 return FALSE;
3af9a47b
NC		 2776 }
2777
92bc0e80
TG		 2778 s->symbol.the_bfd = abfd;
2779 s->symbol.name = sym->strtab + stroff;
2780 s->symbol.value = value;
2781 s->symbol.flags = 0x0;
b22161d6 2782 s->symbol.udata.i = i;
92bc0e80
TG		 2783 s->n_type = type;
2784 s->n_sect = section;
2785 s->n_desc = desc;
3af9a47b
NC		 2786
2787 if (type & BFD_MACH_O_N_STAB)
2788 {
92bc0e80
TG		 2789 s->symbol.flags |= BSF_DEBUGGING;
2790 s->symbol.section = bfd_und_section_ptr;
15e1c58a
TG		 2791 switch (type)
2792 {
2793 case N_FUN:
2794 case N_STSYM:
2795 case N_LCSYM:
2796 case N_BNSYM:
2797 case N_SLINE:
2798 case N_ENSYM:
2799 case N_ECOMM:
2800 case N_ECOML:
2801 case N_GSYM:
2802 if ((section > 0) && (section <= mdata->nsects))
2803 {
92bc0e80
TG		 2804 s->symbol.section = mdata->sections[section - 1]->bfdsection;
2805 s->symbol.value =
2806 s->symbol.value - mdata->sections[section - 1]->addr;
15e1c58a
TG		 2807 }
2808 break;
2809 }
3af9a47b
NC		 2810 }
2811 else
2812 {
b22161d6 2813 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
92bc0e80 2814 s->symbol.flags |= BSF_GLOBAL;
b22161d6 2815 else
92bc0e80 2816 s->symbol.flags |= BSF_LOCAL;
3af9a47b
NC		 2817
2818 switch (symtype)
2819 {
2820 case BFD_MACH_O_N_UNDF:
c2f09c75 2821 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
92bc0e80 2822 && s->symbol.value != 0)
c2f09c75
TG		 2823 {
2824 /* A common symbol. */
92bc0e80
TG		 2825 s->symbol.section = bfd_com_section_ptr;
2826 s->symbol.flags = BSF_NO_FLAGS;
c2f09c75
TG		 2827 }
2828 else
92bc0e80
TG		 2829 {
2830 s->symbol.section = bfd_und_section_ptr;
2831 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
2832 s->symbol.flags |= BSF_WEAK;
2833 }
3af9a47b
NC		 2834 break;
2835 case BFD_MACH_O_N_PBUD:
92bc0e80 2836 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 2837 break;
2838 case BFD_MACH_O_N_ABS:
92bc0e80 2839 s->symbol.section = bfd_abs_section_ptr;
3af9a47b
NC		 2840 break;
2841 case BFD_MACH_O_N_SECT:
2842 if ((section > 0) && (section <= mdata->nsects))
2843 {
92bc0e80
TG		 2844 s->symbol.section = mdata->sections[section - 1]->bfdsection;
2845 s->symbol.value =
2846 s->symbol.value - mdata->sections[section - 1]->addr;
3af9a47b
NC		 2847 }
2848 else
2849 {
2850 /* Mach-O uses 0 to mean "no section"; not an error. */
2851 if (section != 0)
2852 {
4a97a0e5
AM		 2853 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
2854 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
2855 s->symbol.name, section, mdata->nsects);
3af9a47b 2856 }
92bc0e80 2857 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 2858 }
2859 break;
2860 case BFD_MACH_O_N_INDR:
0596a831
TG		 2861 /* FIXME: we don't follow the BFD convention as this indirect symbol
2862 won't be followed by the referenced one. This looks harmless
2863 unless we start using the linker. */
2864 s->symbol.flags |= BSF_INDIRECT;
2865 s->symbol.section = bfd_ind_section_ptr;
2866 s->symbol.value = 0;
3af9a47b
NC		 2867 break;
2868 default:
4a97a0e5
AM		 2869 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
2870 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
2871 s->symbol.name, symtype);
92bc0e80 2872 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 2873 break;
2874 }
2875 }
2876
afbb9e17 2877 return TRUE;
3af9a47b
NC		 2878}
2879
c5012cd8 2880bfd_boolean
ab273af8 2881bfd_mach_o_read_symtab_strtab (bfd *abfd)
3af9a47b 2882{
046b007d
TG		 2883 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2884 bfd_mach_o_symtab_command *sym = mdata->symtab;
2885
2886 /* Fail if there is no symtab. */
2887 if (sym == NULL)
afbb9e17 2888 return FALSE;
046b007d
TG		 2889
2890 /* Success if already loaded. */
2891 if (sym->strtab)
afbb9e17 2892 return TRUE;
3af9a47b
NC		 2893
2894 if (abfd->flags & BFD_IN_MEMORY)
2895 {
2896 struct bfd_in_memory *b;
2897
2898 b = (struct bfd_in_memory *) abfd->iostream;
2899
2900 if ((sym->stroff + sym->strsize) > b->size)
2901 {
2902 bfd_set_error (bfd_error_file_truncated);
afbb9e17 2903 return FALSE;
3af9a47b 2904 }
f075ee0c 2905 sym->strtab = (char *) b->buffer + sym->stroff;
3af9a47b 2906 }
046b007d 2907 else
3af9a47b 2908 {
046b007d
TG		 2909 sym->strtab = bfd_alloc (abfd, sym->strsize);
2910 if (sym->strtab == NULL)
afbb9e17 2911 return FALSE;
046b007d
TG		 2912
2913 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
afbb9e17 2914 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
046b007d
TG		 2915 {
2916 bfd_set_error (bfd_error_file_truncated);
afbb9e17 2917 return FALSE;
046b007d 2918 }
3af9a47b
NC		 2919 }
2920
afbb9e17 2921 return TRUE;
3af9a47b
NC		 2922}
2923
c5012cd8 2924bfd_boolean
ab273af8 2925bfd_mach_o_read_symtab_symbols (bfd *abfd)
3af9a47b 2926{
046b007d
TG		 2927 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2928 bfd_mach_o_symtab_command *sym = mdata->symtab;
3af9a47b 2929 unsigned long i;
3af9a47b 2930
092d27ff
TG		 2931 if (sym == NULL || sym->symbols)
2932 {
2933 /* Return now if there are no symbols or if already loaded. */
afbb9e17 2934 return TRUE;
092d27ff 2935 }
046b007d 2936
92bc0e80 2937 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
3af9a47b
NC		 2938
2939 if (sym->symbols == NULL)
2940 {
4a97a0e5 2941 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
afbb9e17 2942 return FALSE;
3af9a47b 2943 }
a95a4550 2944
afbb9e17
TG		 2945 if (!bfd_mach_o_read_symtab_strtab (abfd))
2946 return FALSE;
3af9a47b
NC		 2947
2948 for (i = 0; i < sym->nsyms; i++)
2949 {
afbb9e17
TG		 2950 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
2951 return FALSE;
3af9a47b 2952 }
a95a4550 2953
afbb9e17 2954 return TRUE;
3af9a47b
NC		 2955}
2956
2957static const char *
116c20d2 2958bfd_mach_o_i386_flavour_string (unsigned int flavour)
3af9a47b
NC		 2959{
2960 switch ((int) flavour)
2961 {
15e1c58a
TG		 2962 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
2963 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
2964 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
2965 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
2966 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
2967 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
2968 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
2969 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
2970 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
2971 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
2972 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
2973 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
b32e07d7 2974 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3af9a47b
NC		 2975 default: return "UNKNOWN";
2976 }
2977}
2978
2979static const char *
116c20d2 2980bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3af9a47b
NC		 2981{
2982 switch ((int) flavour)
2983 {
b32e07d7
TG		 2984 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
2985 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
2986 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
2987 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
2988 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
2989 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3af9a47b
NC		 2990 default: return "UNKNOWN";
2991 }
2992}
2993
2994static int
ab273af8 2995bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 2996{
2997 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
46d1c23b 2998 struct mach_o_str_command_external raw;
3af9a47b 2999 unsigned int nameoff;
3af9a47b
NC		 3000
3001 BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER)
3002 || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER));
3003
46d1c23b
TG		 3004 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3005 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b
NC		 3006 return -1;
3007
46d1c23b 3008 nameoff = bfd_h_get_32 (abfd, raw.str);
3af9a47b
NC		 3009
3010 cmd->name_offset = command->offset + nameoff;
3011 cmd->name_len = command->len - nameoff;
b32e07d7
TG		 3012 cmd->name_str = bfd_alloc (abfd, cmd->name_len);
3013 if (cmd->name_str == NULL)
3af9a47b 3014 return -1;
b32e07d7
TG		 3015 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3016 || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len)
3af9a47b 3017 return -1;
3af9a47b
NC		 3018 return 0;
3019}
3020
3021static int
ab273af8 3022bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 3023{
3024 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
46d1c23b 3025 struct mach_o_dylib_command_external raw;
3af9a47b 3026 unsigned int nameoff;
3af9a47b 3027
046b007d
TG		 3028 switch (command->type)
3029 {
3030 case BFD_MACH_O_LC_LOAD_DYLIB:
046b007d 3031 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 3032 case BFD_MACH_O_LC_ID_DYLIB:
046b007d 3033 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 3034 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
046b007d
TG		 3035 break;
3036 default:
b32e07d7
TG		 3037 BFD_FAIL ();
3038 return -1;
046b007d 3039 }
3af9a47b 3040
46d1c23b
TG		 3041 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3042 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b
NC		 3043 return -1;
3044
46d1c23b
TG		 3045 nameoff = bfd_h_get_32 (abfd, raw.name);
3046 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3047 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3048 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3af9a47b
NC		 3049
3050 cmd->name_offset = command->offset + nameoff;
3051 cmd->name_len = command->len - nameoff;
b32e07d7
TG		 3052 cmd->name_str = bfd_alloc (abfd, cmd->name_len);
3053 if (cmd->name_str == NULL)
3af9a47b 3054 return -1;
b32e07d7
TG		 3055 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3056 || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len)
3af9a47b 3057 return -1;
3af9a47b
NC		 3058 return 0;
3059}
3060
3061static int
ab273af8
TG		 3062bfd_mach_o_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED,
3063 bfd_mach_o_load_command *command ATTRIBUTE_UNUSED)
3af9a47b
NC		 3064{
3065 /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */
3066
3067 BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB);
3068 return 0;
3069}
3070
9f4a5bd1
TG		 3071static int
3072bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3073{
3074 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3075 struct mach_o_fvmlib_command_external raw;
3076 unsigned int nameoff;
3077
3078 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3079 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3080 return -1;
3081
3082 nameoff = bfd_h_get_32 (abfd, raw.name);
3083 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3084 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3085
3086 fvm->name_offset = command->offset + nameoff;
3087 fvm->name_len = command->len - nameoff;
3088 fvm->name_str = bfd_alloc (abfd, fvm->name_len);
3089 if (fvm->name_str == NULL)
3090 return -1;
3091 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3092 || bfd_bread (fvm->name_str, fvm->name_len, abfd) != fvm->name_len)
3093 return -1;
3094 return 0;
3095}
3096
3af9a47b 3097static int
ab273af8 3098bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3099{
b32e07d7 3100 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 3101 bfd_mach_o_thread_command *cmd = &command->command.thread;
92bc0e80 3102 unsigned int offset;
3af9a47b
NC		 3103 unsigned int nflavours;
3104 unsigned int i;
3105
3106 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3107 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3108
b32e07d7 3109 /* Count the number of threads. */
3af9a47b
NC		 3110 offset = 8;
3111 nflavours = 0;
3112 while (offset != command->len)
3113 {
46d1c23b
TG		 3114 struct mach_o_thread_command_external raw;
3115
3af9a47b
NC		 3116 if (offset >= command->len)
3117 return -1;
3118
c2f09c75 3119 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 3120 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b
NC		 3121 return -1;
3122
46d1c23b 3123 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3af9a47b
NC		 3124 nflavours++;
3125 }
3126
b32e07d7
TG		 3127 /* Allocate threads. */
3128 cmd->flavours = bfd_alloc
3129 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3af9a47b
NC		 3130 if (cmd->flavours == NULL)
3131 return -1;
3132 cmd->nflavours = nflavours;
3133
3134 offset = 8;
3135 nflavours = 0;
3136 while (offset != command->len)
3137 {
46d1c23b
TG		 3138 struct mach_o_thread_command_external raw;
3139
3af9a47b
NC		 3140 if (offset >= command->len)
3141 return -1;
3142
3143 if (nflavours >= cmd->nflavours)
3144 return -1;
3145
c2f09c75 3146 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 3147 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b
NC		 3148 return -1;
3149
46d1c23b
TG		 3150 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3151 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3152 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3153 offset += cmd->flavours[nflavours].size + sizeof (raw);
3af9a47b
NC		 3154 nflavours++;
3155 }
3156
3157 for (i = 0; i < nflavours; i++)
3158 {
3159 asection *bfdsec;
3160 unsigned int snamelen;
3161 char *sname;
3162 const char *flavourstr;
3163 const char *prefix = "LC_THREAD";
a95a4550
AM		 3164 unsigned int j = 0;
3165
3af9a47b
NC		 3166 switch (mdata->header.cputype)
3167 {
3168 case BFD_MACH_O_CPU_TYPE_POWERPC:
1e8a024a 3169 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
3af9a47b
NC		 3170 flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3171 break;
3172 case BFD_MACH_O_CPU_TYPE_I386:
1e8a024a 3173 case BFD_MACH_O_CPU_TYPE_X86_64:
3af9a47b
NC		 3174 flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3175 break;
3176 default:
3177 flavourstr = "UNKNOWN_ARCHITECTURE";
3178 break;
3179 }
a95a4550 3180
3af9a47b 3181 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
116c20d2 3182 sname = bfd_alloc (abfd, snamelen);
3af9a47b
NC		 3183 if (sname == NULL)
3184 return -1;
3185
3186 for (;;)
3187 {
a95a4550
AM		 3188 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
3189 if (bfd_get_section_by_name (abfd, sname) == NULL)
3af9a47b 3190 break;
a95a4550 3191 j++;
3af9a47b
NC		 3192 }
3193
117ed4f8 3194 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
a95a4550 3195
3af9a47b
NC		 3196 bfdsec->vma = 0;
3197 bfdsec->lma = 0;
eea6121a 3198 bfdsec->size = cmd->flavours[i].size;
3af9a47b
NC		 3199 bfdsec->filepos = cmd->flavours[i].offset;
3200 bfdsec->alignment_power = 0x0;
3af9a47b
NC		 3201
3202 cmd->section = bfdsec;
3203 }
3204
3205 return 0;
3206}
3207
a95a4550 3208static int
ab273af8 3209bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3210{
046b007d 3211 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
b32e07d7 3212 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 3213
3214 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
3215
46d1c23b
TG		 3216 {
3217 struct mach_o_dysymtab_command_external raw;
3218
3219 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3220 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3221 return -1;
3af9a47b 3222
46d1c23b
TG		 3223 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
3224 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
3225 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
3226 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
3227 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
3228 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
3229 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
3230 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
3231 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
3232 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
3233 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
3234 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
3235 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
3236 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
3237 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
3238 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
3239 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
3240 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
3241 }
046b007d
TG		 3242
3243 if (cmd->nmodtab != 0)
3244 {
046b007d
TG		 3245 unsigned int i;
3246 int wide = bfd_mach_o_wide_p (abfd);
3247 unsigned int module_len = wide ? 56 : 52;
3248
3249 cmd->dylib_module =
3250 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
3251 if (cmd->dylib_module == NULL)
3252 return -1;
3253
3254 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
3255 return -1;
3256
3257 for (i = 0; i < cmd->nmodtab; i++)
3258 {
3259 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
3260 unsigned long v;
46d1c23b 3261 unsigned char buf[56];
046b007d 3262
91d6fa6a 3263 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
046b007d
TG		 3264 return -1;
3265
3266 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
3267 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
3268 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
3269 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
3270 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
3271 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
3272 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
3273 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
3274 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
3275 v = bfd_h_get_32 (abfd, buf +36);
3276 module->iinit = v & 0xffff;
3277 module->iterm = (v >> 16) & 0xffff;
3278 v = bfd_h_get_32 (abfd, buf + 40);
3279 module->ninit = v & 0xffff;
3280 module->nterm = (v >> 16) & 0xffff;
3281 if (wide)
3282 {
3283 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
3284 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
3285 }
3286 else
3287 {
3288 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
3289 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
3290 }
3291 }
3292 }
afbb9e17 3293
046b007d
TG		 3294 if (cmd->ntoc != 0)
3295 {
046b007d
TG		 3296 unsigned int i;
3297
3298 cmd->dylib_toc = bfd_alloc
3299 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
3300 if (cmd->dylib_toc == NULL)
3301 return -1;
3302
3303 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
3304 return -1;
3305
3306 for (i = 0; i < cmd->ntoc; i++)
3307 {
46d1c23b 3308 struct mach_o_dylib_table_of_contents_external raw;
046b007d
TG		 3309 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
3310
46d1c23b 3311 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3312 return -1;
3313
46d1c23b
TG		 3314 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
3315 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
046b007d
TG		 3316 }
3317 }
3318
3319 if (cmd->nindirectsyms != 0)
3320 {
046b007d
TG		 3321 unsigned int i;
3322
3323 cmd->indirect_syms = bfd_alloc
3324 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
3325 if (cmd->indirect_syms == NULL)
3326 return -1;
3327
3328 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
3329 return -1;
3330
3331 for (i = 0; i < cmd->nindirectsyms; i++)
3332 {
46d1c23b 3333 unsigned char raw[4];
046b007d
TG		 3334 unsigned int *is = &cmd->indirect_syms[i];
3335
46d1c23b 3336 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3337 return -1;
3338
46d1c23b 3339 *is = bfd_h_get_32 (abfd, raw);
046b007d
TG		 3340 }
3341 }
3342
3343 if (cmd->nextrefsyms != 0)
3344 {
046b007d
TG		 3345 unsigned long v;
3346 unsigned int i;
3347
3348 cmd->ext_refs = bfd_alloc
3349 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
3350 if (cmd->ext_refs == NULL)
3351 return -1;
3352
3353 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
3354 return -1;
3355
3356 for (i = 0; i < cmd->nextrefsyms; i++)
3357 {
46d1c23b 3358 unsigned char raw[4];
046b007d
TG		 3359 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
3360
46d1c23b 3361 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3362 return -1;
3363
b32e07d7
TG		 3364 /* Fields isym and flags are written as bit-fields, thus we need
3365 a specific processing for endianness. */
46d1c23b 3366 v = bfd_h_get_32 (abfd, raw);
b32e07d7
TG		 3367 if (bfd_big_endian (abfd))
3368 {
3369 ref->isym = (v >> 8) & 0xffffff;
3370 ref->flags = v & 0xff;
3371 }
3372 else
3373 {
3374 ref->isym = v & 0xffffff;
3375 ref->flags = (v >> 24) & 0xff;
3376 }
046b007d
TG		 3377 }
3378 }
3af9a47b 3379
b32e07d7
TG		 3380 if (mdata->dysymtab)
3381 return -1;
3382 mdata->dysymtab = cmd;
3383
3af9a47b
NC		 3384 return 0;
3385}
3386
a95a4550 3387static int
ab273af8 3388bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3389{
046b007d
TG		 3390 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
3391 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
46d1c23b 3392 struct mach_o_symtab_command_external raw;
3af9a47b
NC		 3393
3394 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
3395
46d1c23b
TG		 3396 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3397 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b 3398 return -1;
a95a4550 3399
46d1c23b
TG		 3400 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
3401 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
3402 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
3403 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
046b007d
TG		 3404 symtab->symbols = NULL;
3405 symtab->strtab = NULL;
3af9a47b 3406
046b007d 3407 if (symtab->nsyms != 0)
15e1c58a
TG		 3408 abfd->flags |= HAS_SYMS;
3409
046b007d
TG		 3410 if (mdata->symtab)
3411 return -1;
3412 mdata->symtab = symtab;
3af9a47b
NC		 3413 return 0;
3414}
3415
15e1c58a 3416static int
ab273af8 3417bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
15e1c58a
TG		 3418{
3419 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
15e1c58a
TG		 3420
3421 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
3422
46d1c23b
TG		 3423 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3424 || bfd_bread (cmd->uuid, 16, abfd) != 16)
15e1c58a
TG		 3425 return -1;
3426
15e1c58a
TG		 3427 return 0;
3428}
3429
046b007d 3430static int
ab273af8 3431bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 3432{
3433 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
46d1c23b 3434 struct mach_o_linkedit_data_command_external raw;
046b007d 3435
46d1c23b
TG		 3436 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3437 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3438 return -1;
3439
46d1c23b
TG		 3440 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
3441 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
046b007d
TG		 3442 return 0;
3443}
3444
3445static int
ab273af8 3446bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 3447{
3448 bfd_mach_o_str_command *cmd = &command->command.str;
46d1c23b 3449 struct mach_o_str_command_external raw;
046b007d
TG		 3450 unsigned long off;
3451
46d1c23b
TG		 3452 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3453 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3454 return -1;
3455
46d1c23b 3456 off = bfd_get_32 (abfd, raw.str);
046b007d
TG		 3457 cmd->stroff = command->offset + off;
3458 cmd->str_len = command->len - off;
3459 cmd->str = bfd_alloc (abfd, cmd->str_len);
3460 if (cmd->str == NULL)
3461 return -1;
3462 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
91d6fa6a 3463 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
046b007d
TG		 3464 return -1;
3465 return 0;
3466}
3467
ad86f1fb 3468static int
ab273af8 3469bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
ad86f1fb
TG		 3470{
3471 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
46d1c23b 3472 struct mach_o_dyld_info_command_external raw;
ad86f1fb 3473
46d1c23b
TG		 3474 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3475 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
ad86f1fb
TG		 3476 return -1;
3477
46d1c23b
TG		 3478 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
3479 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
3480 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
3481 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
3482 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
3483 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
3484 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
3485 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
3486 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
3487 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
ad86f1fb
TG		 3488 return 0;
3489}
3490
edbdea0e
TG		 3491static bfd_boolean
3492bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
3493{
3494 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
3495 struct mach_o_version_min_command_external raw;
3496 unsigned int ver;
3497
3498 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3499 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3500 return FALSE;
3501
3502 ver = bfd_get_32 (abfd, raw.version);
3503 cmd->rel = ver >> 16;
3504 cmd->maj = ver >> 8;
3505 cmd->min = ver;
3506 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
3507 return TRUE;
3508}
3509
fc55a902
TG		 3510static bfd_boolean
3511bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
3512{
3513 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
3514 struct mach_o_encryption_info_command_external raw;
3515
3516 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3517 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3518 return FALSE;
3519
3520 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
3521 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
3522 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
3523 return TRUE;
3524}
3525
3af9a47b 3526static int
ab273af8
TG		 3527bfd_mach_o_read_segment (bfd *abfd,
3528 bfd_mach_o_load_command *command,
3529 unsigned int wide)
3af9a47b 3530{
3af9a47b
NC		 3531 bfd_mach_o_segment_command *seg = &command->command.segment;
3532 unsigned long i;
a95a4550 3533
1e8a024a
TG		 3534 if (wide)
3535 {
46d1c23b
TG		 3536 struct mach_o_segment_command_64_external raw;
3537
1e8a024a 3538 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
3af9a47b 3539
46d1c23b
TG		 3540 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3541 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3542 return -1;
3af9a47b 3543
46d1c23b 3544 memcpy (seg->segname, raw.segname, 16);
15e1c58a 3545 seg->segname[16] = '\0';
1e8a024a 3546
46d1c23b
TG		 3547 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
3548 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
3549 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
3550 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
3551 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
3552 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
3553 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
3554 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a
TG		 3555 }
3556 else
3557 {
46d1c23b
TG		 3558 struct mach_o_segment_command_32_external raw;
3559
1e8a024a
TG		 3560 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
3561
46d1c23b
TG		 3562 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3563 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3564 return -1;
1e8a024a 3565
46d1c23b 3566 memcpy (seg->segname, raw.segname, 16);
15e1c58a 3567 seg->segname[16] = '\0';
1e8a024a 3568
46d1c23b
TG		 3569 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
3570 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
3571 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
3572 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
3573 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
3574 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
3575 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
3576 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a 3577 }
9d4b6009
TG		 3578 seg->sect_head = NULL;
3579 seg->sect_tail = NULL;
3af9a47b 3580
f1bde64c 3581 for (i = 0; i < seg->nsects; i++)
3af9a47b 3582 {
f1bde64c
TG		 3583 bfd_vma segoff;
3584 asection *sec;
a95a4550 3585
f1bde64c
TG		 3586 if (wide)
3587 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
3588 + (i * BFD_MACH_O_SECTION_64_SIZE);
3589 else
3590 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
3591 + (i * BFD_MACH_O_SECTION_SIZE);
3af9a47b 3592
f1bde64c
TG		 3593 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
3594 if (sec == NULL)
3595 return -1;
3596
3597 bfd_mach_o_append_section_to_segment (seg, sec);
3af9a47b
NC		 3598 }
3599
3600 return 0;
3601}
3602
1e8a024a 3603static int
ab273af8 3604bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 3605{
ab273af8 3606 return bfd_mach_o_read_segment (abfd, command, 0);
1e8a024a
TG		 3607}
3608
3609static int
ab273af8 3610bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 3611{
ab273af8 3612 return bfd_mach_o_read_segment (abfd, command, 1);
1e8a024a
TG		 3613}
3614
3af9a47b 3615static int
ab273af8 3616bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3617{
46d1c23b
TG		 3618 struct mach_o_load_command_external raw;
3619 unsigned int cmd;
3af9a47b 3620
046b007d 3621 /* Read command type and length. */
c2f09c75 3622 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
46d1c23b 3623 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
3af9a47b
NC		 3624 return -1;
3625
46d1c23b
TG		 3626 cmd = bfd_h_get_32 (abfd, raw.cmd);
3627 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
3628 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
3629 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
3af9a47b
NC		 3630
3631 switch (command->type)
3632 {
3633 case BFD_MACH_O_LC_SEGMENT:
ab273af8 3634 if (bfd_mach_o_read_segment_32 (abfd, command) != 0)
1e8a024a
TG		 3635 return -1;
3636 break;
3637 case BFD_MACH_O_LC_SEGMENT_64:
ab273af8 3638 if (bfd_mach_o_read_segment_64 (abfd, command) != 0)
3af9a47b
NC		 3639 return -1;
3640 break;
3641 case BFD_MACH_O_LC_SYMTAB:
ab273af8 3642 if (bfd_mach_o_read_symtab (abfd, command) != 0)
3af9a47b
NC		 3643 return -1;
3644 break;
3645 case BFD_MACH_O_LC_SYMSEG:
3646 break;
3647 case BFD_MACH_O_LC_THREAD:
3648 case BFD_MACH_O_LC_UNIXTHREAD:
ab273af8 3649 if (bfd_mach_o_read_thread (abfd, command) != 0)
3af9a47b
NC		 3650 return -1;
3651 break;
3652 case BFD_MACH_O_LC_LOAD_DYLINKER:
3653 case BFD_MACH_O_LC_ID_DYLINKER:
ab273af8 3654 if (bfd_mach_o_read_dylinker (abfd, command) != 0)
3af9a47b
NC		 3655 return -1;
3656 break;
3657 case BFD_MACH_O_LC_LOAD_DYLIB:
3658 case BFD_MACH_O_LC_ID_DYLIB:
3659 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 3660 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 3661 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
ab273af8 3662 if (bfd_mach_o_read_dylib (abfd, command) != 0)
3af9a47b
NC		 3663 return -1;
3664 break;
3665 case BFD_MACH_O_LC_PREBOUND_DYLIB:
ab273af8 3666 if (bfd_mach_o_read_prebound_dylib (abfd, command) != 0)
3af9a47b
NC		 3667 return -1;
3668 break;
3669 case BFD_MACH_O_LC_LOADFVMLIB:
3670 case BFD_MACH_O_LC_IDFVMLIB:
9f4a5bd1
TG		 3671 if (bfd_mach_o_read_fvmlib (abfd, command) != 0)
3672 return -1;
3673 break;
3af9a47b
NC		 3674 case BFD_MACH_O_LC_IDENT:
3675 case BFD_MACH_O_LC_FVMFILE:
3676 case BFD_MACH_O_LC_PREPAGE:
3677 case BFD_MACH_O_LC_ROUTINES:
9b02d212 3678 case BFD_MACH_O_LC_ROUTINES_64:
046b007d 3679 break;
3af9a47b 3680 case BFD_MACH_O_LC_SUB_FRAMEWORK:
046b007d
TG		 3681 case BFD_MACH_O_LC_SUB_UMBRELLA:
3682 case BFD_MACH_O_LC_SUB_LIBRARY:
3683 case BFD_MACH_O_LC_SUB_CLIENT:
0c9b2b4c 3684 case BFD_MACH_O_LC_RPATH:
ab273af8 3685 if (bfd_mach_o_read_str (abfd, command) != 0)
046b007d 3686 return -1;
3af9a47b
NC		 3687 break;
3688 case BFD_MACH_O_LC_DYSYMTAB:
ab273af8 3689 if (bfd_mach_o_read_dysymtab (abfd, command) != 0)
3af9a47b
NC		 3690 return -1;
3691 break;
3af9a47b
NC		 3692 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
3693 case BFD_MACH_O_LC_PREBIND_CKSUM:
3694 break;
15e1c58a 3695 case BFD_MACH_O_LC_UUID:
ab273af8 3696 if (bfd_mach_o_read_uuid (abfd, command) != 0)
15e1c58a
TG		 3697 return -1;
3698 break;
3699 case BFD_MACH_O_LC_CODE_SIGNATURE:
846b9259 3700 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
edbdea0e 3701 case BFD_MACH_O_LC_FUNCTION_STARTS:
ab273af8 3702 if (bfd_mach_o_read_linkedit (abfd, command) != 0)
046b007d 3703 return -1;
15e1c58a 3704 break;
fc55a902
TG		 3705 case BFD_MACH_O_LC_ENCRYPTION_INFO:
3706 if (!bfd_mach_o_read_encryption_info (abfd, command))
3707 return -1;
3708 break;
ad86f1fb 3709 case BFD_MACH_O_LC_DYLD_INFO:
ab273af8 3710 if (bfd_mach_o_read_dyld_info (abfd, command) != 0)
ad86f1fb
TG		 3711 return -1;
3712 break;
edbdea0e
TG		 3713 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
3714 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
3715 if (!bfd_mach_o_read_version_min (abfd, command))
3716 return -1;
3717 break;
3af9a47b 3718 default:
fc55a902 3719 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
c0d9d051 3720 abfd, (unsigned long) command->type);
3af9a47b
NC		 3721 break;
3722 }
3723
3724 return 0;
3725}
3726
3727static void
116c20d2 3728bfd_mach_o_flatten_sections (bfd *abfd)
3af9a47b 3729{
046b007d 3730 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 3731 long csect = 0;
f1bde64c 3732 unsigned long i;
a95a4550 3733
15e1c58a 3734 /* Count total number of sections. */
3af9a47b
NC		 3735 mdata->nsects = 0;
3736
3737 for (i = 0; i < mdata->header.ncmds; i++)
3738 {
1e8a024a
TG		 3739 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
3740 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 3741 {
e84d6fca
AM		 3742 bfd_mach_o_segment_command *seg;
3743
3744 seg = &mdata->commands[i].command.segment;
3af9a47b
NC		 3745 mdata->nsects += seg->nsects;
3746 }
3747 }
3748
15e1c58a 3749 /* Allocate sections array. */
e84d6fca
AM		 3750 mdata->sections = bfd_alloc (abfd,
3751 mdata->nsects * sizeof (bfd_mach_o_section *));
15e1c58a
TG		 3752
3753 /* Fill the array. */
3af9a47b
NC		 3754 csect = 0;
3755
3756 for (i = 0; i < mdata->header.ncmds; i++)
3757 {
1e8a024a
TG		 3758 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
3759 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 3760 {
e84d6fca 3761 bfd_mach_o_segment_command *seg;
f1bde64c 3762 bfd_mach_o_section *sec;
3af9a47b 3763
e84d6fca 3764 seg = &mdata->commands[i].command.segment;
3af9a47b
NC		 3765 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
3766
f1bde64c
TG		 3767 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
3768 mdata->sections[csect++] = sec;
3af9a47b
NC		 3769 }
3770 }
3771}
3772
afbb9e17 3773static bfd_boolean
116c20d2 3774bfd_mach_o_scan_start_address (bfd *abfd)
3af9a47b 3775{
046b007d 3776 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 3777 bfd_mach_o_thread_command *cmd = NULL;
3778 unsigned long i;
3779
3780 for (i = 0; i < mdata->header.ncmds; i++)
afbb9e17
TG		 3781 if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) ||
3782 (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD))
3783 {
3784 cmd = &mdata->commands[i].command.thread;
3785 break;
3786 }
3af9a47b
NC		 3787
3788 if (cmd == NULL)
afbb9e17 3789 return FALSE;
3af9a47b 3790
afbb9e17 3791 /* FIXME: create a subtarget hook ? */
3af9a47b
NC		 3792 for (i = 0; i < cmd->nflavours; i++)
3793 {
a95a4550 3794 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
e84d6fca 3795 && (cmd->flavours[i].flavour
15e1c58a 3796 == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32))
3af9a47b
NC		 3797 {
3798 unsigned char buf[4];
3799
c2f09c75
TG		 3800 if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0
3801 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 3802 return FALSE;
3af9a47b
NC		 3803
3804 abfd->start_address = bfd_h_get_32 (abfd, buf);
3805 }
a95a4550 3806 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
3af9a47b
NC		 3807 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
3808 {
3809 unsigned char buf[4];
3810
c2f09c75
TG		 3811 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
3812 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 3813 return FALSE;
3af9a47b
NC		 3814
3815 abfd->start_address = bfd_h_get_32 (abfd, buf);
3816 }
1e8a024a 3817 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
b32e07d7 3818 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
1e8a024a
TG		 3819 {
3820 unsigned char buf[8];
3821
c2f09c75
TG		 3822 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
3823 || bfd_bread (buf, 8, abfd) != 8)
afbb9e17 3824 return FALSE;
1e8a024a
TG		 3825
3826 abfd->start_address = bfd_h_get_64 (abfd, buf);
3827 }
3828 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
3829 && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
3830 {
3831 unsigned char buf[8];
3832
c2f09c75
TG		 3833 if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0
3834 || bfd_bread (buf, 8, abfd) != 8)
afbb9e17 3835 return FALSE;
1e8a024a
TG		 3836
3837 abfd->start_address = bfd_h_get_64 (abfd, buf);
3838 }
3af9a47b
NC		 3839 }
3840
afbb9e17 3841 return TRUE;
3af9a47b
NC		 3842}
3843
42fa0891
TG		 3844bfd_boolean
3845bfd_mach_o_set_arch_mach (bfd *abfd,
3846 enum bfd_architecture arch,
3847 unsigned long machine)
3848{
3849 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
3850
3851 /* If this isn't the right architecture for this backend, and this
3852 isn't the generic backend, fail. */
3853 if (arch != bed->arch
3854 && arch != bfd_arch_unknown
3855 && bed->arch != bfd_arch_unknown)
3856 return FALSE;
3857
3858 return bfd_default_set_arch_mach (abfd, arch, machine);
3859}
3860
afbb9e17 3861static bfd_boolean
116c20d2
NC		 3862bfd_mach_o_scan (bfd *abfd,
3863 bfd_mach_o_header *header,
3864 bfd_mach_o_data_struct *mdata)
3af9a47b
NC		 3865{
3866 unsigned int i;
3af9a47b
NC		 3867 enum bfd_architecture cputype;
3868 unsigned long cpusubtype;
1e8a024a
TG		 3869 unsigned int hdrsize;
3870
c2f09c75 3871 hdrsize = mach_o_wide_p (header) ?
154a1ee5 3872 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3af9a47b 3873
3af9a47b 3874 mdata->header = *header;
3af9a47b 3875
154a1ee5 3876 abfd->flags = abfd->flags & BFD_IN_MEMORY;
15e1c58a
TG		 3877 switch (header->filetype)
3878 {
3879 case BFD_MACH_O_MH_OBJECT:
3880 abfd->flags |= HAS_RELOC;
3881 break;
3882 case BFD_MACH_O_MH_EXECUTE:
3883 abfd->flags |= EXEC_P;
3884 break;
3885 case BFD_MACH_O_MH_DYLIB:
3886 case BFD_MACH_O_MH_BUNDLE:
3887 abfd->flags |= DYNAMIC;
3888 break;
3889 }
3890
3af9a47b
NC		 3891 abfd->tdata.mach_o_data = mdata;
3892
e84d6fca
AM		 3893 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
3894 &cputype, &cpusubtype);
3af9a47b
NC		 3895 if (cputype == bfd_arch_unknown)
3896 {
afbb9e17
TG		 3897 (*_bfd_error_handler)
3898 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
3899 header->cputype, header->cpusubtype);
3900 return FALSE;
3af9a47b
NC		 3901 }
3902
3903 bfd_set_arch_mach (abfd, cputype, cpusubtype);
a95a4550 3904
3af9a47b
NC		 3905 if (header->ncmds != 0)
3906 {
046b007d
TG		 3907 mdata->commands = bfd_alloc
3908 (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
3af9a47b 3909 if (mdata->commands == NULL)
afbb9e17 3910 return FALSE;
a95a4550 3911
3af9a47b
NC		 3912 for (i = 0; i < header->ncmds; i++)
3913 {
3914 bfd_mach_o_load_command *cur = &mdata->commands[i];
3915
3916 if (i == 0)
1e8a024a 3917 cur->offset = hdrsize;
3af9a47b
NC		 3918 else
3919 {
3920 bfd_mach_o_load_command *prev = &mdata->commands[i - 1];
3921 cur->offset = prev->offset + prev->len;
3922 }
3923
ab273af8 3924 if (bfd_mach_o_read_command (abfd, cur) < 0)
afbb9e17 3925 return FALSE;
a95a4550 3926 }
3af9a47b
NC		 3927 }
3928
3929 if (bfd_mach_o_scan_start_address (abfd) < 0)
afbb9e17 3930 return FALSE;
3af9a47b
NC		 3931
3932 bfd_mach_o_flatten_sections (abfd);
afbb9e17 3933 return TRUE;
3af9a47b
NC		 3934}
3935
b34976b6 3936bfd_boolean
154a1ee5 3937bfd_mach_o_mkobject_init (bfd *abfd)
3af9a47b
NC		 3938{
3939 bfd_mach_o_data_struct *mdata = NULL;
3940
116c20d2 3941 mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct));
3af9a47b 3942 if (mdata == NULL)
b34976b6 3943 return FALSE;
3af9a47b
NC		 3944 abfd->tdata.mach_o_data = mdata;
3945
3946 mdata->header.magic = 0;
3947 mdata->header.cputype = 0;
3948 mdata->header.cpusubtype = 0;
3949 mdata->header.filetype = 0;
3950 mdata->header.ncmds = 0;
3951 mdata->header.sizeofcmds = 0;
3952 mdata->header.flags = 0;
3953 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
3954 mdata->commands = NULL;
3af9a47b
NC		 3955 mdata->nsects = 0;
3956 mdata->sections = NULL;
4434114c 3957 mdata->dyn_reloc_cache = NULL;
3af9a47b 3958
b34976b6 3959 return TRUE;
3af9a47b
NC		 3960}
3961
42fa0891
TG		 3962static bfd_boolean
3963bfd_mach_o_gen_mkobject (bfd *abfd)
3964{
3965 bfd_mach_o_data_struct *mdata;
3966
3967 if (!bfd_mach_o_mkobject_init (abfd))
3968 return FALSE;
3969
3970 mdata = bfd_mach_o_get_data (abfd);
3971 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
3972 mdata->header.cputype = 0;
3973 mdata->header.cpusubtype = 0;
3974 mdata->header.byteorder = abfd->xvec->byteorder;
3975 mdata->header.version = 1;
3976
3977 return TRUE;
3978}
3979
3af9a47b 3980const bfd_target *
154a1ee5
TG		 3981bfd_mach_o_header_p (bfd *abfd,
3982 bfd_mach_o_filetype filetype,
3983 bfd_mach_o_cpu_type cputype)
3af9a47b 3984{
e84d6fca 3985 struct bfd_preserve preserve;
3af9a47b
NC		 3986 bfd_mach_o_header header;
3987
e84d6fca 3988 preserve.marker = NULL;
154a1ee5 3989 if (!bfd_mach_o_read_header (abfd, &header))
e84d6fca 3990 goto wrong;
3af9a47b 3991
e84d6fca
AM		 3992 if (! (header.byteorder == BFD_ENDIAN_BIG
3993 || header.byteorder == BFD_ENDIAN_LITTLE))
3af9a47b 3994 {
4a97a0e5
AM		 3995 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
3996 (unsigned long) header.byteorder);
e84d6fca 3997 goto wrong;
3af9a47b
NC		 3998 }
3999
e84d6fca
AM		 4000 if (! ((header.byteorder == BFD_ENDIAN_BIG
4001 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
4002 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
4003 || (header.byteorder == BFD_ENDIAN_LITTLE
4004 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
4005 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
4006 goto wrong;
3af9a47b 4007
154a1ee5
TG		 4008 /* Check cputype and filetype.
4009 In case of wildcard, do not accept magics that are handled by existing
4010 targets. */
4011 if (cputype)
4012 {
4013 if (header.cputype != cputype)
4014 goto wrong;
4015 }
b22161d6 4016
154a1ee5
TG		 4017 if (filetype)
4018 {
4019 if (header.filetype != filetype)
4020 goto wrong;
4021 }
4022 else
4023 {
4024 switch (header.filetype)
4025 {
4026 case BFD_MACH_O_MH_CORE:
4027 /* Handled by core_p */
4028 goto wrong;
4029 default:
4030 break;
4031 }
4032 }
4033
e84d6fca
AM		 4034 preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
4035 if (preserve.marker == NULL
4036 || !bfd_preserve_save (abfd, &preserve))
4037 goto fail;
3af9a47b 4038
afbb9e17
TG		 4039 if (!bfd_mach_o_scan (abfd, &header,
4040 (bfd_mach_o_data_struct *) preserve.marker))
e84d6fca 4041 goto wrong;
a95a4550 4042
e84d6fca 4043 bfd_preserve_finish (abfd, &preserve);
3af9a47b 4044 return abfd->xvec;
e84d6fca
AM		 4045
4046 wrong:
4047 bfd_set_error (bfd_error_wrong_format);
4048
4049 fail:
4050 if (preserve.marker != NULL)
4051 bfd_preserve_restore (abfd, &preserve);
4052 return NULL;
3af9a47b
NC		 4053}
4054
154a1ee5
TG		 4055static const bfd_target *
4056bfd_mach_o_gen_object_p (bfd *abfd)
3af9a47b 4057{
154a1ee5
TG		 4058 return bfd_mach_o_header_p (abfd, 0, 0);
4059}
e84d6fca 4060
154a1ee5
TG		 4061static const bfd_target *
4062bfd_mach_o_gen_core_p (bfd *abfd)
4063{
4064 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
3af9a47b
NC		 4065}
4066
4067typedef struct mach_o_fat_archentry
4068{
4069 unsigned long cputype;
4070 unsigned long cpusubtype;
4071 unsigned long offset;
4072 unsigned long size;
4073 unsigned long align;
3af9a47b
NC		 4074} mach_o_fat_archentry;
4075
4076typedef struct mach_o_fat_data_struct
4077{
4078 unsigned long magic;
4079 unsigned long nfat_arch;
4080 mach_o_fat_archentry *archentries;
4081} mach_o_fat_data_struct;
4082
4083const bfd_target *
116c20d2 4084bfd_mach_o_archive_p (bfd *abfd)
3af9a47b 4085{
e84d6fca 4086 mach_o_fat_data_struct *adata = NULL;
46d1c23b 4087 struct mach_o_fat_header_external hdr;
3af9a47b
NC		 4088 unsigned long i;
4089
c2f09c75 4090 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 4091 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
e84d6fca 4092 goto error;
3af9a47b 4093
116c20d2 4094 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
3af9a47b 4095 if (adata == NULL)
e84d6fca 4096 goto error;
a95a4550 4097
46d1c23b
TG		 4098 adata->magic = bfd_getb32 (hdr.magic);
4099 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
3af9a47b 4100 if (adata->magic != 0xcafebabe)
e84d6fca 4101 goto error;
27cc28f9
AS		 4102 /* Avoid matching Java bytecode files, which have the same magic number.
4103 In the Java bytecode file format this field contains the JVM version,
4104 which starts at 43.0. */
4105 if (adata->nfat_arch > 30)
4106 goto error;
3af9a47b 4107
c2f09c75 4108 adata->archentries =
3af9a47b
NC		 4109 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
4110 if (adata->archentries == NULL)
e84d6fca 4111 goto error;
3af9a47b
NC		 4112
4113 for (i = 0; i < adata->nfat_arch; i++)
4114 {
46d1c23b
TG		 4115 struct mach_o_fat_arch_external arch;
4116 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
e84d6fca 4117 goto error;
46d1c23b
TG		 4118 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
4119 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
4120 adata->archentries[i].offset = bfd_getb32 (arch.offset);
4121 adata->archentries[i].size = bfd_getb32 (arch.size);
4122 adata->archentries[i].align = bfd_getb32 (arch.align);
3af9a47b
NC		 4123 }
4124
4125 abfd->tdata.mach_o_fat_data = adata;
4126 return abfd->xvec;
e84d6fca
AM		 4127
4128 error:
4129 if (adata != NULL)
4130 bfd_release (abfd, adata);
4131 bfd_set_error (bfd_error_wrong_format);
4132 return NULL;
3af9a47b
NC		 4133}
4134
a4e241ca
TG		 4135/* Set the filename for a fat binary member ABFD, whose bfd architecture is
4136 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
4137 Set arelt_data and origin fields too. */
4138
4139static void
4140bfd_mach_o_fat_member_init (bfd *abfd,
4141 enum bfd_architecture arch_type,
4142 unsigned long arch_subtype,
4143 mach_o_fat_archentry *entry)
4144{
4145 struct areltdata *areltdata;
4146 /* Create the member filename. Use ARCH_NAME. */
4147 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
4148
4149 if (ap)
4150 {
4151 /* Use the architecture name if known. */
4152 abfd->filename = ap->printable_name;
4153 }
4154 else
4155 {
4156 /* Forge a uniq id. */
4157 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
4158 char *name = bfd_alloc (abfd, namelen);
4159 snprintf (name, namelen, "0x%lx-0x%lx",
4160 entry->cputype, entry->cpusubtype);
4161 abfd->filename = name;
4162 }
4163
4164 areltdata = bfd_zalloc (abfd, sizeof (struct areltdata));
4165 areltdata->parsed_size = entry->size;
4166 abfd->arelt_data = areltdata;
4167 abfd->iostream = NULL;
4168 abfd->origin = entry->offset;
4169}
4170
3af9a47b 4171bfd *
116c20d2 4172bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
3af9a47b 4173{
e84d6fca 4174 mach_o_fat_data_struct *adata;
3af9a47b
NC		 4175 mach_o_fat_archentry *entry = NULL;
4176 unsigned long i;
15e1c58a 4177 bfd *nbfd;
15e1c58a
TG		 4178 enum bfd_architecture arch_type;
4179 unsigned long arch_subtype;
3af9a47b 4180
e84d6fca 4181 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
3af9a47b
NC		 4182 BFD_ASSERT (adata != NULL);
4183
4184 /* Find index of previous entry. */
4185 if (prev == NULL)
a4e241ca
TG		 4186 {
4187 /* Start at first one. */
4188 i = 0;
4189 }
3af9a47b
NC		 4190 else
4191 {
a4e241ca 4192 /* Find index of PREV. */
3af9a47b
NC		 4193 for (i = 0; i < adata->nfat_arch; i++)
4194 {
15e1c58a 4195 if (adata->archentries[i].offset == prev->origin)
3af9a47b
NC		 4196 break;
4197 }
4198
4199 if (i == adata->nfat_arch)
4200 {
4201 /* Not found. */
4202 bfd_set_error (bfd_error_bad_value);
a95a4550 4203 return NULL;
3af9a47b 4204 }
a4e241ca
TG		 4205
4206 /* Get next entry. */
4207 i++;
4208 }
a95a4550 4209
3af9a47b
NC		 4210 if (i >= adata->nfat_arch)
4211 {
4212 bfd_set_error (bfd_error_no_more_archived_files);
4213 return NULL;
4214 }
4215
4216 entry = &adata->archentries[i];
15e1c58a
TG		 4217 nbfd = _bfd_new_bfd_contained_in (archive);
4218 if (nbfd == NULL)
4219 return NULL;
4220
15e1c58a
TG		 4221 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
4222 &arch_type, &arch_subtype);
846b9259 4223
a4e241ca
TG		 4224 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
4225
846b9259 4226 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
3af9a47b 4227
15e1c58a 4228 return nbfd;
3af9a47b
NC		 4229}
4230
15bbba8d
TG		 4231/* Analogous to stat call. */
4232
4233static int
4234bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
4235{
4236 if (abfd->arelt_data == NULL)
4237 {
4238 bfd_set_error (bfd_error_invalid_operation);
4239 return -1;
4240 }
4241
4242 buf->st_mtime = 0;
4243 buf->st_uid = 0;
4244 buf->st_gid = 0;
4245 buf->st_mode = 0644;
4246 buf->st_size = arelt_size (abfd);
4247
4248 return 0;
4249}
4250
846b9259
TG		 4251/* If ABFD format is FORMAT and architecture is ARCH, return it.
4252 If ABFD is a fat image containing a member that corresponds to FORMAT
4253 and ARCH, returns it.
4254 In other case, returns NULL.
4255 This function allows transparent uses of fat images. */
a4e241ca 4256
846b9259
TG		 4257bfd *
4258bfd_mach_o_fat_extract (bfd *abfd,
4259 bfd_format format,
4260 const bfd_arch_info_type *arch)
4261{
4262 bfd *res;
4263 mach_o_fat_data_struct *adata;
4264 unsigned int i;
4265
4266 if (bfd_check_format (abfd, format))
4267 {
4268 if (bfd_get_arch_info (abfd) == arch)
4269 return abfd;
4270 return NULL;
4271 }
4272 if (!bfd_check_format (abfd, bfd_archive)
4273 || abfd->xvec != &mach_o_fat_vec)
4274 return NULL;
c2f09c75 4275
846b9259
TG		 4276 /* This is a Mach-O fat image. */
4277 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
4278 BFD_ASSERT (adata != NULL);
4279
4280 for (i = 0; i < adata->nfat_arch; i++)
4281 {
4282 struct mach_o_fat_archentry *e = &adata->archentries[i];
4283 enum bfd_architecture cpu_type;
4284 unsigned long cpu_subtype;
4285
4286 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
4287 &cpu_type, &cpu_subtype);
4288 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
4289 continue;
4290
4291 /* The architecture is found. */
4292 res = _bfd_new_bfd_contained_in (abfd);
4293 if (res == NULL)
4294 return NULL;
4295
a4e241ca 4296 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
846b9259
TG		 4297
4298 if (bfd_check_format (res, format))
4299 {
4300 BFD_ASSERT (bfd_get_arch_info (res) == arch);
4301 return res;
4302 }
4303 bfd_close (res);
4304 return NULL;
4305 }
4306
4307 return NULL;
4308}
4309
3af9a47b 4310int
116c20d2
NC		 4311bfd_mach_o_lookup_command (bfd *abfd,
4312 bfd_mach_o_load_command_type type,
4313 bfd_mach_o_load_command **mcommand)
3af9a47b 4314{
046b007d 4315 struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 4316 bfd_mach_o_load_command *ncmd = NULL;
4317 unsigned int i, num;
4318
3af9a47b
NC		 4319 BFD_ASSERT (md != NULL);
4320 BFD_ASSERT (mcommand != NULL);
4321
4322 num = 0;
4323 for (i = 0; i < md->header.ncmds; i++)
4324 {
4325 struct bfd_mach_o_load_command *cmd = &md->commands[i];
4326
4327 if (cmd->type != type)
4328 continue;
4329
4330 if (num == 0)
4331 ncmd = cmd;
4332 num++;
4333 }
4334
4335 *mcommand = ncmd;
4336 return num;
4337}
4338
4339unsigned long
116c20d2 4340bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
3af9a47b
NC		 4341{
4342 switch (type)
4343 {
4344 case BFD_MACH_O_CPU_TYPE_MC680x0:
4345 return 0x04000000;
4346 case BFD_MACH_O_CPU_TYPE_MC88000:
4347 return 0xffffe000;
4348 case BFD_MACH_O_CPU_TYPE_POWERPC:
4349 return 0xc0000000;
4350 case BFD_MACH_O_CPU_TYPE_I386:
4351 return 0xc0000000;
4352 case BFD_MACH_O_CPU_TYPE_SPARC:
4353 return 0xf0000000;
4354 case BFD_MACH_O_CPU_TYPE_I860:
4355 return 0;
4356 case BFD_MACH_O_CPU_TYPE_HPPA:
e84d6fca 4357 return 0xc0000000 - 0x04000000;
3af9a47b
NC		 4358 default:
4359 return 0;
4360 }
4361}
4362
ab76eeaf
IS		 4363/* The following two tables should be kept, as far as possible, in order of
4364 most frequently used entries to optimize their use from gas. */
4365
c5012cd8 4366const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
046b007d
TG		 4367{
4368 { "regular", BFD_MACH_O_S_REGULAR},
ab76eeaf 4369 { "coalesced", BFD_MACH_O_S_COALESCED},
046b007d
TG		 4370 { "zerofill", BFD_MACH_O_S_ZEROFILL},
4371 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
4372 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
4373 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
ab76eeaf 4374 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
046b007d 4375 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
046b007d
TG		 4376 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
4377 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
046b007d
TG		 4378 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
4379 { "interposing", BFD_MACH_O_S_INTERPOSING},
046b007d 4380 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
ab76eeaf
IS		 4381 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
4382 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
a4551119 4383 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
046b007d
TG		 4384 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
4385 { NULL, 0}
4386};
4387
c5012cd8 4388const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
046b007d 4389{
ab76eeaf
IS		 4390 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
4391 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
046b007d
TG		 4392 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
4393 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
046b007d 4394 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
046b007d
TG		 4395 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
4396 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
4397 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
4398 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
a4551119 4399 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
ab76eeaf 4400 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
046b007d
TG		 4401 { NULL, 0}
4402};
4403
a4551119 4404/* Get the section type from NAME. Return 256 if NAME is unknown. */
53d58d96
TG		 4405
4406unsigned int
ab76eeaf 4407bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
53d58d96 4408{
afbb9e17 4409 const bfd_mach_o_xlat_name *x;
ab76eeaf 4410 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
53d58d96
TG		 4411
4412 for (x = bfd_mach_o_section_type_name; x->name; x++)
4413 if (strcmp (x->name, name) == 0)
ab76eeaf
IS		 4414 {
4415 /* We found it... does the target support it? */
4416 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
4417 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
4418 return x->val; /* OK. */
4419 else
4420 break; /* Not supported. */
4421 }
a4551119
TG		 4422 /* Maximum section ID = 0xff. */
4423 return 256;
53d58d96
TG		 4424}
4425
4426/* Get the section attribute from NAME. Return -1 if NAME is unknown. */
4427
4428unsigned int
4429bfd_mach_o_get_section_attribute_from_name (const char *name)
4430{
afbb9e17 4431 const bfd_mach_o_xlat_name *x;
53d58d96
TG		 4432
4433 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
4434 if (strcmp (x->name, name) == 0)
4435 return x->val;
4436 return (unsigned int)-1;
4437}
4438
3af9a47b 4439int
116c20d2
NC		 4440bfd_mach_o_core_fetch_environment (bfd *abfd,
4441 unsigned char **rbuf,
4442 unsigned int *rlen)
3af9a47b 4443{
046b007d 4444 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 4445 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
4446 unsigned int i = 0;
4447
4448 for (i = 0; i < mdata->header.ncmds; i++)
4449 {
4450 bfd_mach_o_load_command *cur = &mdata->commands[i];
4451 bfd_mach_o_segment_command *seg = NULL;
4452
4453 if (cur->type != BFD_MACH_O_LC_SEGMENT)
4454 continue;
4455
4456 seg = &cur->command.segment;
4457
4458 if ((seg->vmaddr + seg->vmsize) == stackaddr)
4459 {
4460 unsigned long start = seg->fileoff;
4461 unsigned long end = seg->fileoff + seg->filesize;
4462 unsigned char *buf = bfd_malloc (1024);
4463 unsigned long size = 1024;
4464
4465 for (;;)
4466 {
4467 bfd_size_type nread = 0;
4468 unsigned long offset;
4469 int found_nonnull = 0;
4470
4471 if (size > (end - start))
4472 size = (end - start);
4473
515ef31d
NC		 4474 buf = bfd_realloc_or_free (buf, size);
4475 if (buf == NULL)
4476 return -1;
c2f09c75
TG		 4477
4478 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
4479 {
4480 free (buf);
4481 return -1;
4482 }
4483
3af9a47b 4484 nread = bfd_bread (buf, size, abfd);
a95a4550 4485
3af9a47b 4486 if (nread != size)
515ef31d
NC		 4487 {
4488 free (buf);
4489 return -1;
4490 }
a95a4550 4491
3af9a47b
NC		 4492 for (offset = 4; offset <= size; offset += 4)
4493 {
e84d6fca 4494 unsigned long val;
3af9a47b 4495
e84d6fca 4496 val = *((unsigned long *) (buf + size - offset));
3af9a47b
NC		 4497 if (! found_nonnull)
4498 {
4499 if (val != 0)
4500 found_nonnull = 1;
4501 }
4502 else if (val == 0x0)
4503 {
e84d6fca
AM		 4504 unsigned long bottom;
4505 unsigned long top;
3af9a47b 4506
e84d6fca
AM		 4507 bottom = seg->fileoff + seg->filesize - offset;
4508 top = seg->fileoff + seg->filesize - 4;
3af9a47b
NC		 4509 *rbuf = bfd_malloc (top - bottom);
4510 *rlen = top - bottom;
4511
4512 memcpy (*rbuf, buf + size - *rlen, *rlen);
515ef31d 4513 free (buf);
3af9a47b
NC		 4514 return 0;
4515 }
4516 }
4517
4518 if (size == (end - start))
4519 break;
4520
4521 size *= 2;
4522 }
515ef31d
NC		 4523
4524 free (buf);
3af9a47b
NC		 4525 }
4526 }
4527
4528 return -1;
4529}
4530
4531char *
116c20d2 4532bfd_mach_o_core_file_failing_command (bfd *abfd)
3af9a47b
NC		 4533{
4534 unsigned char *buf = NULL;
4535 unsigned int len = 0;
4536 int ret = -1;
4537
4538 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
4539 if (ret < 0)
4540 return NULL;
4541
f075ee0c 4542 return (char *) buf;
3af9a47b
NC		 4543}
4544
4545int
116c20d2 4546bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
3af9a47b
NC		 4547{
4548 return 0;
4549}
4550
2ca7691a
TG		 4551static bfd_mach_o_uuid_command *
4552bfd_mach_o_lookup_uuid_command (bfd *abfd)
4553{
4554 bfd_mach_o_load_command *uuid_cmd;
4555 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
4556 if (ncmd != 1)
4557 return FALSE;
4558 return &uuid_cmd->command.uuid;
4559}
4560
4561/* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
4562
4563static bfd_boolean
4564bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
4565{
4566 bfd_mach_o_uuid_command *dsym_uuid_cmd;
4567
4568 BFD_ASSERT (abfd);
4569 BFD_ASSERT (uuid_cmd);
4570
4571 if (!bfd_check_format (abfd, bfd_object))
4572 return FALSE;
4573
4574 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
4575 || bfd_mach_o_get_data (abfd) == NULL
4576 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
4577 return FALSE;
4578
4579 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
4580 if (dsym_uuid_cmd == NULL)
4581 return FALSE;
4582
4583 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
4584 sizeof (uuid_cmd->uuid)) != 0)
4585 return FALSE;
4586
4587 return TRUE;
4588}
4589
4590/* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
4591 The caller is responsible for closing the returned BFD object and
4592 its my_archive if the returned BFD is in a fat dSYM. */
4593
4594static bfd *
4595bfd_mach_o_find_dsym (const char *dsym_filename,
4596 const bfd_mach_o_uuid_command *uuid_cmd,
4597 const bfd_arch_info_type *arch)
4598{
4599 bfd *base_dsym_bfd, *dsym_bfd;
4600
4601 BFD_ASSERT (uuid_cmd);
4602
4603 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
4604 if (base_dsym_bfd == NULL)
4605 return NULL;
4606
4607 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
4608 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
4609 return dsym_bfd;
4610
4611 bfd_close (dsym_bfd);
4612 if (base_dsym_bfd != dsym_bfd)
4613 bfd_close (base_dsym_bfd);
4614
4615 return NULL;
4616}
4617
4618/* Return a BFD created from a dSYM file for ABFD.
4619 The caller is responsible for closing the returned BFD object, its
4620 filename, and its my_archive if the returned BFD is in a fat dSYM. */
4621
4622static bfd *
4623bfd_mach_o_follow_dsym (bfd *abfd)
4624{
4625 char *dsym_filename;
4626 bfd_mach_o_uuid_command *uuid_cmd;
4627 bfd *dsym_bfd, *base_bfd = abfd;
4628 const char *base_basename;
4629
4630 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
4631 return NULL;
4632
4633 if (abfd->my_archive)
4634 base_bfd = abfd->my_archive;
4635 /* BFD may have been opened from a stream. */
4636 if (base_bfd->filename == NULL)
4637 {
4638 bfd_set_error (bfd_error_invalid_operation);
4639 return NULL;
4640 }
4641 base_basename = lbasename (base_bfd->filename);
4642
4643 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
4644 if (uuid_cmd == NULL)
4645 return NULL;
4646
4647 /* TODO: We assume the DWARF file has the same as the binary's.
4648 It seems apple's GDB checks all files in the dSYM bundle directory.
4649 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
4650 */
4651 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
4652 + strlen (dsym_subdir) + 1
4653 + strlen (base_basename) + 1);
4654 sprintf (dsym_filename, "%s%s/%s",
4655 base_bfd->filename, dsym_subdir, base_basename);
4656
4657 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
4658 bfd_get_arch_info (abfd));
4659 if (dsym_bfd == NULL)
4660 free (dsym_filename);
4661
4662 return dsym_bfd;
4663}
4664
d9071b0c
TG		 4665bfd_boolean
4666bfd_mach_o_find_nearest_line (bfd *abfd,
4667 asection *section,
4668 asymbol **symbols,
4669 bfd_vma offset,
4670 const char **filename_ptr,
4671 const char **functionname_ptr,
4672 unsigned int *line_ptr)
4673{
4674 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2ca7691a 4675 if (mdata == NULL)
d9071b0c 4676 return FALSE;
2ca7691a
TG		 4677 switch (mdata->header.filetype)
4678 {
4679 case BFD_MACH_O_MH_OBJECT:
4680 break;
4681 case BFD_MACH_O_MH_EXECUTE:
4682 case BFD_MACH_O_MH_DYLIB:
4683 case BFD_MACH_O_MH_BUNDLE:
4684 case BFD_MACH_O_MH_KEXT_BUNDLE:
4685 if (mdata->dwarf2_find_line_info == NULL)
4686 {
4687 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
4688 /* When we couldn't find dSYM for this binary, we look for
4689 the debug information in the binary itself. In this way,
4690 we won't try finding separated dSYM again because
4691 mdata->dwarf2_find_line_info will be filled. */
4692 if (! mdata->dsym_bfd)
4693 break;
4694 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
4695 dwarf_debug_sections, symbols,
4696 &mdata->dwarf2_find_line_info))
4697 return FALSE;
4698 }
4699 break;
4700 default:
4701 return FALSE;
4702 }
d9071b0c
TG		 4703 if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections,
4704 section, symbols, offset,
4705 filename_ptr, functionname_ptr,
4706 line_ptr, 0,
4707 &mdata->dwarf2_find_line_info))
4708 return TRUE;
4709 return FALSE;
4710}
4711
4712bfd_boolean
4713bfd_mach_o_close_and_cleanup (bfd *abfd)
4714{
4715 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4716 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
4434114c
TG		 4717 {
4718 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
4719 bfd_mach_o_free_cached_info (abfd);
2ca7691a
TG		 4720 if (mdata->dsym_bfd != NULL)
4721 {
4722 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
4723 char *dsym_filename = (char *)(fat_bfd
4724 ? fat_bfd->filename
4725 : mdata->dsym_bfd->filename);
4726 bfd_close (mdata->dsym_bfd);
4727 mdata->dsym_bfd = NULL;
4728 if (fat_bfd)
4729 bfd_close (fat_bfd);
4730 free (dsym_filename);
4731 }
4434114c 4732 }
dff55db0 4733
d9071b0c
TG		 4734 return _bfd_generic_close_and_cleanup (abfd);
4735}
4736
dff55db0
TG		 4737bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
4738{
4739 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4740 asection *asect;
4741 free (mdata->dyn_reloc_cache);
4742 mdata->dyn_reloc_cache = NULL;
4743 for (asect = abfd->sections; asect != NULL; asect = asect->next)
4744 {
4745 free (asect->relocation);
4746 asect->relocation = NULL;
4747 }
4748
4749 return TRUE;
4750}
4751
92bc0e80
TG		 4752#define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
4753#define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
4754
4755#define bfd_mach_o_swap_reloc_in NULL
4756#define bfd_mach_o_swap_reloc_out NULL
b32e07d7 4757#define bfd_mach_o_print_thread NULL
a4551119 4758#define bfd_mach_o_tgt_seg_table NULL
ab76eeaf 4759#define bfd_mach_o_section_type_valid_for_tgt NULL
92bc0e80 4760
116c20d2
NC		 4761#define TARGET_NAME mach_o_be_vec
4762#define TARGET_STRING "mach-o-be"
42fa0891 4763#define TARGET_ARCHITECTURE bfd_arch_unknown
116c20d2
NC		 4764#define TARGET_BIG_ENDIAN 1
4765#define TARGET_ARCHIVE 0
b93a1992 4766#define TARGET_PRIORITY 1
3af9a47b
NC		 4767#include "mach-o-target.c"
4768
4769#undef TARGET_NAME
4770#undef TARGET_STRING
42fa0891 4771#undef TARGET_ARCHITECTURE
3af9a47b
NC		 4772#undef TARGET_BIG_ENDIAN
4773#undef TARGET_ARCHIVE
b93a1992 4774#undef TARGET_PRIORITY
3af9a47b 4775
116c20d2
NC		 4776#define TARGET_NAME mach_o_le_vec
4777#define TARGET_STRING "mach-o-le"
42fa0891 4778#define TARGET_ARCHITECTURE bfd_arch_unknown
116c20d2
NC		 4779#define TARGET_BIG_ENDIAN 0
4780#define TARGET_ARCHIVE 0
b93a1992 4781#define TARGET_PRIORITY 1
3af9a47b
NC		 4782
4783#include "mach-o-target.c"
4784
4785#undef TARGET_NAME
4786#undef TARGET_STRING
42fa0891 4787#undef TARGET_ARCHITECTURE
3af9a47b
NC		 4788#undef TARGET_BIG_ENDIAN
4789#undef TARGET_ARCHIVE
b93a1992 4790#undef TARGET_PRIORITY
3af9a47b 4791
8f95b6e4
TG		 4792/* Not yet handled: creating an archive. */
4793#define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
4794
4795/* Not used. */
4796#define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
4797#define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
4798#define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
4799#define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
4800#define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
4801#define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
4802#define bfd_mach_o_write_armap _bfd_noarchive_write_armap
4803#define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
15bbba8d 4804#define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
8f95b6e4
TG		 4805#define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
4806
116c20d2
NC		 4807#define TARGET_NAME mach_o_fat_vec
4808#define TARGET_STRING "mach-o-fat"
42fa0891 4809#define TARGET_ARCHITECTURE bfd_arch_unknown
116c20d2
NC		 4810#define TARGET_BIG_ENDIAN 1
4811#define TARGET_ARCHIVE 1
b93a1992 4812#define TARGET_PRIORITY 0
3af9a47b
NC		 4813
4814#include "mach-o-target.c"
4815
4816#undef TARGET_NAME
4817#undef TARGET_STRING
42fa0891 4818#undef TARGET_ARCHITECTURE
3af9a47b
NC		 4819#undef TARGET_BIG_ENDIAN
4820#undef TARGET_ARCHIVE
b93a1992 4821#undef TARGET_PRIORITY
GDB Binutils - Deliverables
This page took 0.755523 seconds and 4 git commands to generate.