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2012-02-02 Tristan Gingold <gingold@adacore.com>
[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;
687be931
IS		 2213 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
2214 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
2215 dsym->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
2216 | BFD_MACH_O_INDIRECT_SYM_ABS;
50d10658
IS		 2217 else
2218 dsym->indirect_syms[n] = isyms[j]->symbol.udata.i;
2219 }
2220 }
2221 break;
2222 default:
2223 break;
2224 }
7f307238
IS		 2225 }
2226 }
2227
2228 return TRUE;
2229}
2230
2231/* Build Mach-O load commands (currently assuming an MH_OBJECT file).
2232 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
2233 and copy functionality. */
154a1ee5
TG		 2234
2235bfd_boolean
2236bfd_mach_o_build_commands (bfd *abfd)
2237{
046b007d 2238 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
bbd56171
IS		 2239 unsigned wide = mach_o_wide_p (&mdata->header);
2240 int segcmd_idx = -1;
2241 int symtab_idx = -1;
2242 int dysymtab_idx = -1;
2243 unsigned long base_offset = 0;
154a1ee5 2244
7f307238 2245 /* Return now if commands are already present. */
154a1ee5
TG		 2246 if (mdata->header.ncmds)
2247 return FALSE;
2248
7f307238 2249 /* Fill in the file type, if not already set. */
154a1ee5 2250
7f307238 2251 if (mdata->header.filetype == 0)
154a1ee5 2252 {
7f307238
IS		 2253 if (abfd->flags & EXEC_P)
2254 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
2255 else if (abfd->flags & DYNAMIC)
2256 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
2257 else
2258 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
154a1ee5 2259 }
7f307238
IS		 2260
2261 /* If hasn't already been done, flatten sections list, and sort
2262 if/when required. Must be done before the symbol table is adjusted,
2263 since that depends on properly numbered sections. */
2264 if (mdata->nsects == 0 || mdata->sections == NULL)
2265 if (! bfd_mach_o_mangle_sections (abfd, mdata))
2266 return FALSE;
2267
2268 /* Order the symbol table, fill-in/check mach-o specific fields and
2269 partition out any indirect symbols. */
b22161d6 2270 if (!bfd_mach_o_mangle_symbols (abfd))
7f307238
IS		 2271 return FALSE;
2272
bbd56171
IS		 2273 /* Very simple command set (only really applicable to MH_OBJECTs):
2274 All the commands are optional - present only when there is suitable data.
2275 (i.e. it is valid to have an empty file)
2276
2277 a command (segment) to contain all the sections,
2278 command for the symbol table,
2279 a command for the dysymtab.
2280
2281 ??? maybe we should assert that this is an MH_OBJECT? */
2282
7f307238 2283 if (mdata->nsects > 0)
154a1ee5 2284 {
bbd56171 2285 segcmd_idx = 0;
7f307238 2286 mdata->header.ncmds = 1;
154a1ee5 2287 }
154a1ee5 2288
7f307238 2289 if (bfd_get_symcount (abfd) > 0)
bbd56171
IS		 2290 {
2291 mdata->header.ncmds++;
2292 symtab_idx = segcmd_idx + 1; /* 0 if the seg command is absent. */
2293 }
c2f09c75 2294
bbd56171
IS		 2295 /* FIXME:
2296 This is a rather crude test for whether we should build a dysymtab. */
2297 if (bfd_mach_o_should_emit_dysymtab ()
2298 && bfd_get_symcount (abfd))
2299 {
2300 mdata->header.ncmds++;
2301 /* If there should be a case where a dysymtab could be emitted without
2302 a symtab (seems improbable), this would need amending. */
2303 dysymtab_idx = symtab_idx + 1;
2304 }
154a1ee5 2305
bbd56171
IS		 2306 if (wide)
2307 base_offset = BFD_MACH_O_HEADER_64_SIZE;
2308 else
2309 base_offset = BFD_MACH_O_HEADER_SIZE;
c2f09c75 2310
bbd56171
IS		 2311 /* Well, we must have a header, at least. */
2312 mdata->filelen = base_offset;
f1bde64c 2313
bbd56171 2314 /* A bit unusual, but no content is valid;
7f307238
IS		 2315 as -n empty.s -o empty.o */
2316 if (mdata->header.ncmds == 0)
2317 return TRUE;
f1bde64c 2318
7f307238
IS		 2319 mdata->commands = bfd_zalloc (abfd, mdata->header.ncmds
2320 * sizeof (bfd_mach_o_load_command));
2321 if (mdata->commands == NULL)
2322 return FALSE;
2323
bbd56171 2324 if (segcmd_idx >= 0)
7f307238 2325 {
bbd56171
IS		 2326 bfd_mach_o_load_command *cmd = &mdata->commands[segcmd_idx];
2327 bfd_mach_o_segment_command *seg = &cmd->command.segment;
7f307238
IS		 2328
2329 /* Count the segctions in the special blank segment used for MH_OBJECT. */
2330 seg->nsects = bfd_mach_o_count_sections_for_seg (NULL, mdata);
2331 if (seg->nsects == (unsigned long) -1)
2332 return FALSE;
2333
2334 /* Init segment command. */
bbd56171 2335 cmd->offset = base_offset;
7f307238
IS		 2336 if (wide)
2337 {
2338 cmd->type = BFD_MACH_O_LC_SEGMENT_64;
7f307238
IS		 2339 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2340 + BFD_MACH_O_SECTION_64_SIZE * seg->nsects;
2341 }
92bc0e80 2342 else
7f307238
IS		 2343 {
2344 cmd->type = BFD_MACH_O_LC_SEGMENT;
7f307238
IS		 2345 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2346 + BFD_MACH_O_SECTION_SIZE * seg->nsects;
2347 }
bbd56171 2348
7f307238
IS		 2349 cmd->type_required = FALSE;
2350 mdata->header.sizeofcmds = cmd->len;
bbd56171 2351 mdata->filelen += cmd->len;
7f307238 2352 }
f1bde64c 2353
bbd56171 2354 if (symtab_idx >= 0)
7f307238
IS		 2355 {
2356 /* Init symtab command. */
bbd56171 2357 bfd_mach_o_load_command *cmd = &mdata->commands[symtab_idx];
7f307238 2358
bbd56171
IS		 2359 cmd->type = BFD_MACH_O_LC_SYMTAB;
2360 cmd->offset = base_offset;
2361 if (segcmd_idx >= 0)
2362 cmd->offset += mdata->commands[segcmd_idx].len;
2363
2364 cmd->len = sizeof (struct mach_o_symtab_command_external)
2365 + BFD_MACH_O_LC_SIZE;
2366 cmd->type_required = FALSE;
2367 mdata->header.sizeofcmds += cmd->len;
2368 mdata->filelen += cmd->len;
7f307238 2369 }
154a1ee5 2370
bbd56171
IS		 2371 /* If required, setup symtab command, see comment above about the quality
2372 of this test. */
2373 if (dysymtab_idx >= 0)
7f307238 2374 {
bbd56171
IS		 2375 bfd_mach_o_load_command *cmd = &mdata->commands[dysymtab_idx];
2376
7f307238 2377 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
bbd56171
IS		 2378 if (symtab_idx >= 0)
2379 cmd->offset = mdata->commands[symtab_idx].offset
2380 + mdata->commands[symtab_idx].len;
2381 else if (segcmd_idx >= 0)
2382 cmd->offset = mdata->commands[segcmd_idx].offset
2383 + mdata->commands[segcmd_idx].len;
2384 else
2385 cmd->offset = base_offset;
2386
7f307238 2387 cmd->type_required = FALSE;
bbd56171
IS		 2388 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2389 + BFD_MACH_O_LC_SIZE;
7f307238
IS		 2390
2391 mdata->header.sizeofcmds += cmd->len;
2392 mdata->filelen += cmd->len;
154a1ee5 2393 }
154a1ee5 2394
7f307238
IS		 2395 /* So, now we have sized the commands and the filelen set to that.
2396 Now we can build the segment command and set the section file offsets. */
bbd56171
IS		 2397 if (segcmd_idx >= 0
2398 && ! bfd_mach_o_build_seg_command
2399 (NULL, mdata, &mdata->commands[segcmd_idx].command.segment))
7f307238
IS		 2400 return FALSE;
2401
2402 /* If we're doing a dysymtab, cmd points to its load command. */
bbd56171 2403 if (dysymtab_idx >= 0
7f307238 2404 && ! bfd_mach_o_build_dysymtab_command (abfd, mdata,
bbd56171 2405 &mdata->commands[dysymtab_idx]))
7f307238
IS		 2406 return FALSE;
2407
2408 /* The symtab command is filled in when the symtab is written. */
154a1ee5
TG		 2409 return TRUE;
2410}
2411
2412/* Set the contents of a section. */
2413
2414bfd_boolean
2415bfd_mach_o_set_section_contents (bfd *abfd,
2416 asection *section,
2417 const void * location,
2418 file_ptr offset,
2419 bfd_size_type count)
2420{
2421 file_ptr pos;
2422
7f307238
IS		 2423 /* Trying to write the first section contents will trigger the creation of
2424 the load commands if they are not already present. */
154a1ee5
TG		 2425 if (! abfd->output_has_begun && ! bfd_mach_o_build_commands (abfd))
2426 return FALSE;
2427
2428 if (count == 0)
2429 return TRUE;
2430
2431 pos = section->filepos + offset;
2432 if (bfd_seek (abfd, pos, SEEK_SET) != 0
2433 || bfd_bwrite (location, count, abfd) != count)
2434 return FALSE;
2435
2436 return TRUE;
2437}
2438
2439int
116c20d2 2440bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
a6b96beb 2441 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3af9a47b
NC		 2442{
2443 return 0;
2444}
2445
2446/* Make an empty symbol. This is required only because
2447 bfd_make_section_anyway wants to create a symbol for the section. */
2448
154a1ee5 2449asymbol *
116c20d2 2450bfd_mach_o_make_empty_symbol (bfd *abfd)
3af9a47b 2451{
d3ce72d0
NC		 2452 asymbol *new_symbol;
2453
2454 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
2455 if (new_symbol == NULL)
2456 return new_symbol;
2457 new_symbol->the_bfd = abfd;
b22161d6 2458 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
d3ce72d0 2459 return new_symbol;
3af9a47b
NC		 2460}
2461
154a1ee5 2462static bfd_boolean
116c20d2 2463bfd_mach_o_read_header (bfd *abfd, bfd_mach_o_header *header)
3af9a47b 2464{
46d1c23b 2465 struct mach_o_header_external raw;
1e8a024a 2466 unsigned int size;
edeb6e24 2467 bfd_vma (*get32) (const void *) = NULL;
3af9a47b 2468
1e8a024a 2469 /* Just read the magic number. */
c2f09c75 2470 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 2471 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
154a1ee5 2472 return FALSE;
3af9a47b 2473
46d1c23b 2474 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b
NC		 2475 {
2476 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 2477 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a 2478 header->version = 1;
3af9a47b
NC		 2479 get32 = bfd_getb32;
2480 }
46d1c23b 2481 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3af9a47b 2482 {
a95a4550 2483 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 2484 header->magic = BFD_MACH_O_MH_MAGIC;
1e8a024a
TG		 2485 header->version = 1;
2486 get32 = bfd_getl32;
2487 }
46d1c23b 2488 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 2489 {
2490 header->byteorder = BFD_ENDIAN_BIG;
154a1ee5 2491 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a
TG		 2492 header->version = 2;
2493 get32 = bfd_getb32;
2494 }
46d1c23b 2495 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
1e8a024a
TG		 2496 {
2497 header->byteorder = BFD_ENDIAN_LITTLE;
154a1ee5 2498 header->magic = BFD_MACH_O_MH_MAGIC_64;
1e8a024a 2499 header->version = 2;
3af9a47b
NC		 2500 get32 = bfd_getl32;
2501 }
2502 else
2503 {
2504 header->byteorder = BFD_ENDIAN_UNKNOWN;
154a1ee5 2505 return FALSE;
3af9a47b 2506 }
a95a4550 2507
1e8a024a 2508 /* Once the size of the header is known, read the full header. */
c2f09c75 2509 size = mach_o_wide_p (header) ?
154a1ee5 2510 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1e8a024a 2511
c2f09c75 2512 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 2513 || bfd_bread (&raw, size, abfd) != size)
154a1ee5 2514 return FALSE;
1e8a024a 2515
46d1c23b
TG		 2516 header->cputype = (*get32) (raw.cputype);
2517 header->cpusubtype = (*get32) (raw.cpusubtype);
2518 header->filetype = (*get32) (raw.filetype);
2519 header->ncmds = (*get32) (raw.ncmds);
2520 header->sizeofcmds = (*get32) (raw.sizeofcmds);
2521 header->flags = (*get32) (raw.flags);
3af9a47b 2522
c2f09c75 2523 if (mach_o_wide_p (header))
46d1c23b 2524 header->reserved = (*get32) (raw.reserved);
1e8a024a 2525
154a1ee5 2526 return TRUE;
3af9a47b
NC		 2527}
2528
f1bde64c
TG		 2529bfd_boolean
2530bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
2531{
2532 bfd_mach_o_section *s;
a4551119 2533 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
f1bde64c
TG		 2534
2535 s = bfd_mach_o_get_mach_o_section (sec);
2536 if (s == NULL)
2537 {
2538 flagword bfd_flags;
a4551119 2539 static const mach_o_section_name_xlat * xlat;
f1bde64c
TG		 2540
2541 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
2542 if (s == NULL)
2543 return FALSE;
2544 sec->used_by_bfd = s;
2545 s->bfdsection = sec;
2546
a4551119
TG		 2547 /* Create the Darwin seg/sect name pair from the bfd name.
2548 If this is a canonical name for which a specific paiting exists
2549 there will also be defined flags, type, attribute and alignment
2550 values. */
2551 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
2552 if (xlat != NULL)
2553 {
2554 s->flags = xlat->macho_sectype | xlat->macho_secattr;
2555 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
2556 : bfdalign;
2557 bfd_set_section_alignment (abfd, sec, s->align);
2558 bfd_flags = bfd_get_section_flags (abfd, sec);
2559 if (bfd_flags == SEC_NO_FLAGS)
2560 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
2561 }
f1bde64c 2562 else
a4551119
TG		 2563 /* Create default flags. */
2564 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
f1bde64c
TG		 2565 }
2566
2567 return _bfd_generic_new_section_hook (abfd, sec);
2568}
2569
2570static void
2571bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
2572 unsigned long prot)
3af9a47b 2573{
117ed4f8 2574 flagword flags;
f1bde64c 2575 bfd_mach_o_section *section;
3af9a47b 2576
f1bde64c
TG		 2577 flags = bfd_get_section_flags (abfd, sec);
2578 section = bfd_mach_o_get_mach_o_section (sec);
3af9a47b 2579
a4551119
TG		 2580 /* TODO: see if we should use the xlat system for doing this by
2581 preference and fall back to this for unknown sections. */
2582
8462aec7 2583 if (flags == SEC_NO_FLAGS)
ef17cb22 2584 {
8462aec7
TG		 2585 /* Try to guess flags. */
2586 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
2587 flags = SEC_DEBUGGING;
2588 else
2589 {
2590 flags = SEC_ALLOC;
2591 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2592 != BFD_MACH_O_S_ZEROFILL)
2593 {
2594 flags |= SEC_LOAD;
2595 if (prot & BFD_MACH_O_PROT_EXECUTE)
2596 flags |= SEC_CODE;
2597 if (prot & BFD_MACH_O_PROT_WRITE)
2598 flags |= SEC_DATA;
2599 else if (prot & BFD_MACH_O_PROT_READ)
2600 flags |= SEC_READONLY;
2601 }
2602 }
ef17cb22 2603 }
15e1c58a
TG		 2604 else
2605 {
8462aec7
TG		 2606 if ((flags & SEC_DEBUGGING) == 0)
2607 flags |= SEC_ALLOC;
15e1c58a 2608 }
8462aec7
TG		 2609
2610 if (section->offset != 0)
2611 flags |= SEC_HAS_CONTENTS;
92bc0e80
TG		 2612 if (section->nreloc != 0)
2613 flags |= SEC_RELOC;
2614
f1bde64c
TG		 2615 bfd_set_section_flags (abfd, sec, flags);
2616
2617 sec->vma = section->addr;
2618 sec->lma = section->addr;
2619 sec->size = section->size;
2620 sec->filepos = section->offset;
2621 sec->alignment_power = section->align;
2622 sec->segment_mark = 0;
2623 sec->reloc_count = section->nreloc;
2624 sec->rel_filepos = section->reloff;
2625}
2626
2627static asection *
2628bfd_mach_o_make_bfd_section (bfd *abfd,
2629 const unsigned char *segname,
2630 const unsigned char *sectname)
2631{
2632 const char *sname;
2633 flagword flags;
a95a4550 2634
f1bde64c
TG		 2635 bfd_mach_o_convert_section_name_to_bfd
2636 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
2637 if (sname == NULL)
2638 return NULL;
3af9a47b 2639
f1bde64c 2640 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3af9a47b
NC		 2641}
2642
f1bde64c 2643static asection *
ab273af8 2644bfd_mach_o_read_section_32 (bfd *abfd,
ab273af8
TG		 2645 unsigned int offset,
2646 unsigned long prot)
3af9a47b 2647{
46d1c23b 2648 struct mach_o_section_32_external raw;
f1bde64c
TG		 2649 asection *sec;
2650 bfd_mach_o_section *section;
3af9a47b 2651
c2f09c75 2652 if (bfd_seek (abfd, offset, SEEK_SET) != 0
46d1c23b 2653 || (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
c2f09c75 2654 != BFD_MACH_O_SECTION_SIZE))
f1bde64c 2655 return NULL;
a95a4550 2656
5a5cbf72 2657 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 2658 if (sec == NULL)
2659 return NULL;
2660
2661 section = bfd_mach_o_get_mach_o_section (sec);
2662 memcpy (section->segname, raw.segname, sizeof (raw.segname));
2663 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
2664 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 2665 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 2666 section->addr = bfd_h_get_32 (abfd, raw.addr);
2667 section->size = bfd_h_get_32 (abfd, raw.size);
2668 section->offset = bfd_h_get_32 (abfd, raw.offset);
2669 section->align = bfd_h_get_32 (abfd, raw.align);
2670 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
2671 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
2672 section->flags = bfd_h_get_32 (abfd, raw.flags);
2673 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
2674 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
1e8a024a 2675 section->reserved3 = 0;
1e8a024a 2676
f1bde64c 2677 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
1e8a024a 2678
f1bde64c 2679 return sec;
1e8a024a
TG		 2680}
2681
f1bde64c 2682static asection *
ab273af8 2683bfd_mach_o_read_section_64 (bfd *abfd,
ab273af8
TG		 2684 unsigned int offset,
2685 unsigned long prot)
1e8a024a 2686{
46d1c23b 2687 struct mach_o_section_64_external raw;
f1bde64c
TG		 2688 asection *sec;
2689 bfd_mach_o_section *section;
1e8a024a 2690
c2f09c75 2691 if (bfd_seek (abfd, offset, SEEK_SET) != 0
46d1c23b 2692 || (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
c2f09c75 2693 != BFD_MACH_O_SECTION_64_SIZE))
f1bde64c
TG		 2694 return NULL;
2695
5a5cbf72 2696 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
f1bde64c
TG		 2697 if (sec == NULL)
2698 return NULL;
1e8a024a 2699
f1bde64c
TG		 2700 section = bfd_mach_o_get_mach_o_section (sec);
2701 memcpy (section->segname, raw.segname, sizeof (raw.segname));
2702 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
2703 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
69499dca 2704 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
46d1c23b
TG		 2705 section->addr = bfd_h_get_64 (abfd, raw.addr);
2706 section->size = bfd_h_get_64 (abfd, raw.size);
2707 section->offset = bfd_h_get_32 (abfd, raw.offset);
2708 section->align = bfd_h_get_32 (abfd, raw.align);
2709 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
2710 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
2711 section->flags = bfd_h_get_32 (abfd, raw.flags);
2712 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
2713 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
2714 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3af9a47b 2715
f1bde64c 2716 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3af9a47b 2717
f1bde64c 2718 return sec;
3af9a47b
NC		 2719}
2720
f1bde64c 2721static asection *
ab273af8 2722bfd_mach_o_read_section (bfd *abfd,
ab273af8
TG		 2723 unsigned int offset,
2724 unsigned long prot,
2725 unsigned int wide)
1e8a024a
TG		 2726{
2727 if (wide)
f1bde64c 2728 return bfd_mach_o_read_section_64 (abfd, offset, prot);
1e8a024a 2729 else
f1bde64c 2730 return bfd_mach_o_read_section_32 (abfd, offset, prot);
1e8a024a
TG		 2731}
2732
afbb9e17 2733static bfd_boolean
ab273af8
TG		 2734bfd_mach_o_read_symtab_symbol (bfd *abfd,
2735 bfd_mach_o_symtab_command *sym,
2736 bfd_mach_o_asymbol *s,
2737 unsigned long i)
3af9a47b 2738{
046b007d 2739 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
c2f09c75 2740 unsigned int wide = mach_o_wide_p (&mdata->header);
046b007d
TG		 2741 unsigned int symwidth =
2742 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
92bc0e80 2743 unsigned int symoff = sym->symoff + (i * symwidth);
46d1c23b 2744 struct mach_o_nlist_64_external raw;
3af9a47b
NC		 2745 unsigned char type = -1;
2746 unsigned char section = -1;
2747 short desc = -1;
1e8a024a 2748 symvalue value = -1;
3af9a47b
NC		 2749 unsigned long stroff = -1;
2750 unsigned int symtype = -1;
2751
2752 BFD_ASSERT (sym->strtab != NULL);
2753
c2f09c75 2754 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
46d1c23b 2755 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3af9a47b 2756 {
46d1c23b
TG		 2757 (*_bfd_error_handler)
2758 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %lu"),
2759 symwidth, (unsigned long) symoff);
afbb9e17 2760 return FALSE;
3af9a47b
NC		 2761 }
2762
46d1c23b
TG		 2763 stroff = bfd_h_get_32 (abfd, raw.n_strx);
2764 type = bfd_h_get_8 (abfd, raw.n_type);
c2f09c75 2765 symtype = type & BFD_MACH_O_N_TYPE;
46d1c23b
TG		 2766 section = bfd_h_get_8 (abfd, raw.n_sect);
2767 desc = bfd_h_get_16 (abfd, raw.n_desc);
1e8a024a 2768 if (wide)
46d1c23b 2769 value = bfd_h_get_64 (abfd, raw.n_value);
1e8a024a 2770 else
46d1c23b 2771 value = bfd_h_get_32 (abfd, raw.n_value);
3af9a47b
NC		 2772
2773 if (stroff >= sym->strsize)
2774 {
46d1c23b
TG		 2775 (*_bfd_error_handler)
2776 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %lu)"),
2777 (unsigned long) stroff,
2778 (unsigned long) sym->strsize);
afbb9e17 2779 return FALSE;
3af9a47b
NC		 2780 }
2781
92bc0e80
TG		 2782 s->symbol.the_bfd = abfd;
2783 s->symbol.name = sym->strtab + stroff;
2784 s->symbol.value = value;
2785 s->symbol.flags = 0x0;
b22161d6 2786 s->symbol.udata.i = i;
92bc0e80
TG		 2787 s->n_type = type;
2788 s->n_sect = section;
2789 s->n_desc = desc;
3af9a47b
NC		 2790
2791 if (type & BFD_MACH_O_N_STAB)
2792 {
92bc0e80
TG		 2793 s->symbol.flags |= BSF_DEBUGGING;
2794 s->symbol.section = bfd_und_section_ptr;
15e1c58a
TG		 2795 switch (type)
2796 {
2797 case N_FUN:
2798 case N_STSYM:
2799 case N_LCSYM:
2800 case N_BNSYM:
2801 case N_SLINE:
2802 case N_ENSYM:
2803 case N_ECOMM:
2804 case N_ECOML:
2805 case N_GSYM:
2806 if ((section > 0) && (section <= mdata->nsects))
2807 {
92bc0e80
TG		 2808 s->symbol.section = mdata->sections[section - 1]->bfdsection;
2809 s->symbol.value =
2810 s->symbol.value - mdata->sections[section - 1]->addr;
15e1c58a
TG		 2811 }
2812 break;
2813 }
3af9a47b
NC		 2814 }
2815 else
2816 {
b22161d6 2817 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
92bc0e80 2818 s->symbol.flags |= BSF_GLOBAL;
b22161d6 2819 else
92bc0e80 2820 s->symbol.flags |= BSF_LOCAL;
3af9a47b
NC		 2821
2822 switch (symtype)
2823 {
2824 case BFD_MACH_O_N_UNDF:
c2f09c75 2825 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
92bc0e80 2826 && s->symbol.value != 0)
c2f09c75
TG		 2827 {
2828 /* A common symbol. */
92bc0e80
TG		 2829 s->symbol.section = bfd_com_section_ptr;
2830 s->symbol.flags = BSF_NO_FLAGS;
c2f09c75
TG		 2831 }
2832 else
92bc0e80
TG		 2833 {
2834 s->symbol.section = bfd_und_section_ptr;
2835 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
2836 s->symbol.flags |= BSF_WEAK;
2837 }
3af9a47b
NC		 2838 break;
2839 case BFD_MACH_O_N_PBUD:
92bc0e80 2840 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 2841 break;
2842 case BFD_MACH_O_N_ABS:
92bc0e80 2843 s->symbol.section = bfd_abs_section_ptr;
3af9a47b
NC		 2844 break;
2845 case BFD_MACH_O_N_SECT:
2846 if ((section > 0) && (section <= mdata->nsects))
2847 {
92bc0e80
TG		 2848 s->symbol.section = mdata->sections[section - 1]->bfdsection;
2849 s->symbol.value =
2850 s->symbol.value - mdata->sections[section - 1]->addr;
3af9a47b
NC		 2851 }
2852 else
2853 {
2854 /* Mach-O uses 0 to mean "no section"; not an error. */
2855 if (section != 0)
2856 {
4a97a0e5
AM		 2857 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
2858 "symbol \"%s\" specified invalid section %d (max %lu): setting to undefined"),
2859 s->symbol.name, section, mdata->nsects);
3af9a47b 2860 }
92bc0e80 2861 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 2862 }
2863 break;
2864 case BFD_MACH_O_N_INDR:
0596a831
TG		 2865 /* FIXME: we don't follow the BFD convention as this indirect symbol
2866 won't be followed by the referenced one. This looks harmless
2867 unless we start using the linker. */
2868 s->symbol.flags |= BSF_INDIRECT;
2869 s->symbol.section = bfd_ind_section_ptr;
2870 s->symbol.value = 0;
3af9a47b
NC		 2871 break;
2872 default:
4a97a0e5
AM		 2873 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbol: "
2874 "symbol \"%s\" specified invalid type field 0x%x: setting to undefined"),
2875 s->symbol.name, symtype);
92bc0e80 2876 s->symbol.section = bfd_und_section_ptr;
3af9a47b
NC		 2877 break;
2878 }
2879 }
2880
afbb9e17 2881 return TRUE;
3af9a47b
NC		 2882}
2883
c5012cd8 2884bfd_boolean
ab273af8 2885bfd_mach_o_read_symtab_strtab (bfd *abfd)
3af9a47b 2886{
046b007d
TG		 2887 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2888 bfd_mach_o_symtab_command *sym = mdata->symtab;
2889
2890 /* Fail if there is no symtab. */
2891 if (sym == NULL)
afbb9e17 2892 return FALSE;
046b007d
TG		 2893
2894 /* Success if already loaded. */
2895 if (sym->strtab)
afbb9e17 2896 return TRUE;
3af9a47b
NC		 2897
2898 if (abfd->flags & BFD_IN_MEMORY)
2899 {
2900 struct bfd_in_memory *b;
2901
2902 b = (struct bfd_in_memory *) abfd->iostream;
2903
2904 if ((sym->stroff + sym->strsize) > b->size)
2905 {
2906 bfd_set_error (bfd_error_file_truncated);
afbb9e17 2907 return FALSE;
3af9a47b 2908 }
f075ee0c 2909 sym->strtab = (char *) b->buffer + sym->stroff;
3af9a47b 2910 }
046b007d 2911 else
3af9a47b 2912 {
046b007d
TG		 2913 sym->strtab = bfd_alloc (abfd, sym->strsize);
2914 if (sym->strtab == NULL)
afbb9e17 2915 return FALSE;
046b007d
TG		 2916
2917 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
afbb9e17 2918 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
046b007d
TG		 2919 {
2920 bfd_set_error (bfd_error_file_truncated);
afbb9e17 2921 return FALSE;
046b007d 2922 }
3af9a47b
NC		 2923 }
2924
afbb9e17 2925 return TRUE;
3af9a47b
NC		 2926}
2927
c5012cd8 2928bfd_boolean
ab273af8 2929bfd_mach_o_read_symtab_symbols (bfd *abfd)
3af9a47b 2930{
046b007d
TG		 2931 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2932 bfd_mach_o_symtab_command *sym = mdata->symtab;
3af9a47b 2933 unsigned long i;
3af9a47b 2934
092d27ff
TG		 2935 if (sym == NULL || sym->symbols)
2936 {
2937 /* Return now if there are no symbols or if already loaded. */
afbb9e17 2938 return TRUE;
092d27ff 2939 }
046b007d 2940
92bc0e80 2941 sym->symbols = bfd_alloc (abfd, sym->nsyms * sizeof (bfd_mach_o_asymbol));
3af9a47b
NC		 2942
2943 if (sym->symbols == NULL)
2944 {
4a97a0e5 2945 (*_bfd_error_handler) (_("bfd_mach_o_read_symtab_symbols: unable to allocate memory for symbols"));
afbb9e17 2946 return FALSE;
3af9a47b 2947 }
a95a4550 2948
afbb9e17
TG		 2949 if (!bfd_mach_o_read_symtab_strtab (abfd))
2950 return FALSE;
3af9a47b
NC		 2951
2952 for (i = 0; i < sym->nsyms; i++)
2953 {
afbb9e17
TG		 2954 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
2955 return FALSE;
3af9a47b 2956 }
a95a4550 2957
afbb9e17 2958 return TRUE;
3af9a47b
NC		 2959}
2960
2961static const char *
116c20d2 2962bfd_mach_o_i386_flavour_string (unsigned int flavour)
3af9a47b
NC		 2963{
2964 switch ((int) flavour)
2965 {
15e1c58a
TG		 2966 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
2967 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
2968 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
2969 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
2970 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
2971 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
2972 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
2973 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
2974 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
2975 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
2976 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
2977 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
b32e07d7 2978 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3af9a47b
NC		 2979 default: return "UNKNOWN";
2980 }
2981}
2982
2983static const char *
116c20d2 2984bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3af9a47b
NC		 2985{
2986 switch ((int) flavour)
2987 {
b32e07d7
TG		 2988 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
2989 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
2990 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
2991 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
2992 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
2993 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3af9a47b
NC		 2994 default: return "UNKNOWN";
2995 }
2996}
2997
2998static int
ab273af8 2999bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 3000{
3001 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
46d1c23b 3002 struct mach_o_str_command_external raw;
3af9a47b 3003 unsigned int nameoff;
3af9a47b
NC		 3004
3005 BFD_ASSERT ((command->type == BFD_MACH_O_LC_ID_DYLINKER)
3006 || (command->type == BFD_MACH_O_LC_LOAD_DYLINKER));
3007
46d1c23b
TG		 3008 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3009 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b
NC		 3010 return -1;
3011
46d1c23b 3012 nameoff = bfd_h_get_32 (abfd, raw.str);
3af9a47b
NC		 3013
3014 cmd->name_offset = command->offset + nameoff;
3015 cmd->name_len = command->len - nameoff;
b32e07d7
TG		 3016 cmd->name_str = bfd_alloc (abfd, cmd->name_len);
3017 if (cmd->name_str == NULL)
3af9a47b 3018 return -1;
b32e07d7
TG		 3019 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3020 || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len)
3af9a47b 3021 return -1;
3af9a47b
NC		 3022 return 0;
3023}
3024
3025static int
ab273af8 3026bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b
NC		 3027{
3028 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
46d1c23b 3029 struct mach_o_dylib_command_external raw;
3af9a47b 3030 unsigned int nameoff;
3af9a47b 3031
046b007d
TG		 3032 switch (command->type)
3033 {
3034 case BFD_MACH_O_LC_LOAD_DYLIB:
046b007d 3035 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 3036 case BFD_MACH_O_LC_ID_DYLIB:
046b007d 3037 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 3038 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
046b007d
TG		 3039 break;
3040 default:
b32e07d7
TG		 3041 BFD_FAIL ();
3042 return -1;
046b007d 3043 }
3af9a47b 3044
46d1c23b
TG		 3045 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3046 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b
NC		 3047 return -1;
3048
46d1c23b
TG		 3049 nameoff = bfd_h_get_32 (abfd, raw.name);
3050 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3051 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3052 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3af9a47b
NC		 3053
3054 cmd->name_offset = command->offset + nameoff;
3055 cmd->name_len = command->len - nameoff;
b32e07d7
TG		 3056 cmd->name_str = bfd_alloc (abfd, cmd->name_len);
3057 if (cmd->name_str == NULL)
3af9a47b 3058 return -1;
b32e07d7
TG		 3059 if (bfd_seek (abfd, cmd->name_offset, SEEK_SET) != 0
3060 || bfd_bread (cmd->name_str, cmd->name_len, abfd) != cmd->name_len)
3af9a47b 3061 return -1;
3af9a47b
NC		 3062 return 0;
3063}
3064
3065static int
ab273af8
TG		 3066bfd_mach_o_read_prebound_dylib (bfd *abfd ATTRIBUTE_UNUSED,
3067 bfd_mach_o_load_command *command ATTRIBUTE_UNUSED)
3af9a47b
NC		 3068{
3069 /* bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib; */
3070
3071 BFD_ASSERT (command->type == BFD_MACH_O_LC_PREBOUND_DYLIB);
3072 return 0;
3073}
3074
9f4a5bd1
TG		 3075static int
3076bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3077{
3078 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3079 struct mach_o_fvmlib_command_external raw;
3080 unsigned int nameoff;
3081
3082 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3083 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3084 return -1;
3085
3086 nameoff = bfd_h_get_32 (abfd, raw.name);
3087 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3088 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3089
3090 fvm->name_offset = command->offset + nameoff;
3091 fvm->name_len = command->len - nameoff;
3092 fvm->name_str = bfd_alloc (abfd, fvm->name_len);
3093 if (fvm->name_str == NULL)
3094 return -1;
3095 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3096 || bfd_bread (fvm->name_str, fvm->name_len, abfd) != fvm->name_len)
3097 return -1;
3098 return 0;
3099}
3100
3af9a47b 3101static int
ab273af8 3102bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3103{
b32e07d7 3104 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 3105 bfd_mach_o_thread_command *cmd = &command->command.thread;
92bc0e80 3106 unsigned int offset;
3af9a47b
NC		 3107 unsigned int nflavours;
3108 unsigned int i;
3109
3110 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
3111 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
3112
b32e07d7 3113 /* Count the number of threads. */
3af9a47b
NC		 3114 offset = 8;
3115 nflavours = 0;
3116 while (offset != command->len)
3117 {
46d1c23b
TG		 3118 struct mach_o_thread_command_external raw;
3119
3af9a47b
NC		 3120 if (offset >= command->len)
3121 return -1;
3122
c2f09c75 3123 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 3124 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b
NC		 3125 return -1;
3126
46d1c23b 3127 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
3af9a47b
NC		 3128 nflavours++;
3129 }
3130
b32e07d7
TG		 3131 /* Allocate threads. */
3132 cmd->flavours = bfd_alloc
3133 (abfd, nflavours * sizeof (bfd_mach_o_thread_flavour));
3af9a47b
NC		 3134 if (cmd->flavours == NULL)
3135 return -1;
3136 cmd->nflavours = nflavours;
3137
3138 offset = 8;
3139 nflavours = 0;
3140 while (offset != command->len)
3141 {
46d1c23b
TG		 3142 struct mach_o_thread_command_external raw;
3143
3af9a47b
NC		 3144 if (offset >= command->len)
3145 return -1;
3146
3147 if (nflavours >= cmd->nflavours)
3148 return -1;
3149
c2f09c75 3150 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
46d1c23b 3151 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b
NC		 3152 return -1;
3153
46d1c23b
TG		 3154 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
3155 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
3156 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
3157 offset += cmd->flavours[nflavours].size + sizeof (raw);
3af9a47b
NC		 3158 nflavours++;
3159 }
3160
3161 for (i = 0; i < nflavours; i++)
3162 {
3163 asection *bfdsec;
3164 unsigned int snamelen;
3165 char *sname;
3166 const char *flavourstr;
3167 const char *prefix = "LC_THREAD";
a95a4550
AM		 3168 unsigned int j = 0;
3169
3af9a47b
NC		 3170 switch (mdata->header.cputype)
3171 {
3172 case BFD_MACH_O_CPU_TYPE_POWERPC:
1e8a024a 3173 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
3af9a47b
NC		 3174 flavourstr = bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
3175 break;
3176 case BFD_MACH_O_CPU_TYPE_I386:
1e8a024a 3177 case BFD_MACH_O_CPU_TYPE_X86_64:
3af9a47b
NC		 3178 flavourstr = bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
3179 break;
3180 default:
3181 flavourstr = "UNKNOWN_ARCHITECTURE";
3182 break;
3183 }
a95a4550 3184
3af9a47b 3185 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
116c20d2 3186 sname = bfd_alloc (abfd, snamelen);
3af9a47b
NC		 3187 if (sname == NULL)
3188 return -1;
3189
3190 for (;;)
3191 {
a95a4550
AM		 3192 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
3193 if (bfd_get_section_by_name (abfd, sname) == NULL)
3af9a47b 3194 break;
a95a4550 3195 j++;
3af9a47b
NC		 3196 }
3197
117ed4f8 3198 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
a95a4550 3199
3af9a47b
NC		 3200 bfdsec->vma = 0;
3201 bfdsec->lma = 0;
eea6121a 3202 bfdsec->size = cmd->flavours[i].size;
3af9a47b
NC		 3203 bfdsec->filepos = cmd->flavours[i].offset;
3204 bfdsec->alignment_power = 0x0;
3af9a47b
NC		 3205
3206 cmd->section = bfdsec;
3207 }
3208
3209 return 0;
3210}
3211
a95a4550 3212static int
ab273af8 3213bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3214{
046b007d 3215 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
b32e07d7 3216 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 3217
3218 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
3219
46d1c23b
TG		 3220 {
3221 struct mach_o_dysymtab_command_external raw;
3222
3223 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3224 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3225 return -1;
3af9a47b 3226
46d1c23b
TG		 3227 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
3228 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
3229 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
3230 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
3231 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
3232 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
3233 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
3234 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
3235 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
3236 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
3237 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
3238 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
3239 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
3240 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
3241 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
3242 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
3243 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
3244 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
3245 }
046b007d
TG		 3246
3247 if (cmd->nmodtab != 0)
3248 {
046b007d
TG		 3249 unsigned int i;
3250 int wide = bfd_mach_o_wide_p (abfd);
3251 unsigned int module_len = wide ? 56 : 52;
3252
3253 cmd->dylib_module =
3254 bfd_alloc (abfd, cmd->nmodtab * sizeof (bfd_mach_o_dylib_module));
3255 if (cmd->dylib_module == NULL)
3256 return -1;
3257
3258 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
3259 return -1;
3260
3261 for (i = 0; i < cmd->nmodtab; i++)
3262 {
3263 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
3264 unsigned long v;
46d1c23b 3265 unsigned char buf[56];
046b007d 3266
91d6fa6a 3267 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
046b007d
TG		 3268 return -1;
3269
3270 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
3271 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
3272 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
3273 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
3274 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
3275 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
3276 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
3277 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
3278 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
3279 v = bfd_h_get_32 (abfd, buf +36);
3280 module->iinit = v & 0xffff;
3281 module->iterm = (v >> 16) & 0xffff;
3282 v = bfd_h_get_32 (abfd, buf + 40);
3283 module->ninit = v & 0xffff;
3284 module->nterm = (v >> 16) & 0xffff;
3285 if (wide)
3286 {
3287 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
3288 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
3289 }
3290 else
3291 {
3292 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
3293 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
3294 }
3295 }
3296 }
afbb9e17 3297
046b007d
TG		 3298 if (cmd->ntoc != 0)
3299 {
046b007d
TG		 3300 unsigned int i;
3301
3302 cmd->dylib_toc = bfd_alloc
3303 (abfd, cmd->ntoc * sizeof (bfd_mach_o_dylib_table_of_content));
3304 if (cmd->dylib_toc == NULL)
3305 return -1;
3306
3307 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
3308 return -1;
3309
3310 for (i = 0; i < cmd->ntoc; i++)
3311 {
46d1c23b 3312 struct mach_o_dylib_table_of_contents_external raw;
046b007d
TG		 3313 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
3314
46d1c23b 3315 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3316 return -1;
3317
46d1c23b
TG		 3318 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
3319 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
046b007d
TG		 3320 }
3321 }
3322
3323 if (cmd->nindirectsyms != 0)
3324 {
046b007d
TG		 3325 unsigned int i;
3326
3327 cmd->indirect_syms = bfd_alloc
3328 (abfd, cmd->nindirectsyms * sizeof (unsigned int));
3329 if (cmd->indirect_syms == NULL)
3330 return -1;
3331
3332 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
3333 return -1;
3334
3335 for (i = 0; i < cmd->nindirectsyms; i++)
3336 {
46d1c23b 3337 unsigned char raw[4];
046b007d
TG		 3338 unsigned int *is = &cmd->indirect_syms[i];
3339
46d1c23b 3340 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3341 return -1;
3342
46d1c23b 3343 *is = bfd_h_get_32 (abfd, raw);
046b007d
TG		 3344 }
3345 }
3346
3347 if (cmd->nextrefsyms != 0)
3348 {
046b007d
TG		 3349 unsigned long v;
3350 unsigned int i;
3351
3352 cmd->ext_refs = bfd_alloc
3353 (abfd, cmd->nextrefsyms * sizeof (bfd_mach_o_dylib_reference));
3354 if (cmd->ext_refs == NULL)
3355 return -1;
3356
3357 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
3358 return -1;
3359
3360 for (i = 0; i < cmd->nextrefsyms; i++)
3361 {
46d1c23b 3362 unsigned char raw[4];
046b007d
TG		 3363 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
3364
46d1c23b 3365 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3366 return -1;
3367
b32e07d7
TG		 3368 /* Fields isym and flags are written as bit-fields, thus we need
3369 a specific processing for endianness. */
46d1c23b 3370 v = bfd_h_get_32 (abfd, raw);
b32e07d7
TG		 3371 if (bfd_big_endian (abfd))
3372 {
3373 ref->isym = (v >> 8) & 0xffffff;
3374 ref->flags = v & 0xff;
3375 }
3376 else
3377 {
3378 ref->isym = v & 0xffffff;
3379 ref->flags = (v >> 24) & 0xff;
3380 }
046b007d
TG		 3381 }
3382 }
3af9a47b 3383
b32e07d7
TG		 3384 if (mdata->dysymtab)
3385 return -1;
3386 mdata->dysymtab = cmd;
3387
3af9a47b
NC		 3388 return 0;
3389}
3390
a95a4550 3391static int
ab273af8 3392bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3393{
046b007d
TG		 3394 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
3395 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
46d1c23b 3396 struct mach_o_symtab_command_external raw;
3af9a47b
NC		 3397
3398 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
3399
46d1c23b
TG		 3400 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3401 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3af9a47b 3402 return -1;
a95a4550 3403
46d1c23b
TG		 3404 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
3405 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
3406 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
3407 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
046b007d
TG		 3408 symtab->symbols = NULL;
3409 symtab->strtab = NULL;
3af9a47b 3410
046b007d 3411 if (symtab->nsyms != 0)
15e1c58a
TG		 3412 abfd->flags |= HAS_SYMS;
3413
046b007d
TG		 3414 if (mdata->symtab)
3415 return -1;
3416 mdata->symtab = symtab;
3af9a47b
NC		 3417 return 0;
3418}
3419
15e1c58a 3420static int
ab273af8 3421bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
15e1c58a
TG		 3422{
3423 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
15e1c58a
TG		 3424
3425 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
3426
46d1c23b
TG		 3427 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3428 || bfd_bread (cmd->uuid, 16, abfd) != 16)
15e1c58a
TG		 3429 return -1;
3430
15e1c58a
TG		 3431 return 0;
3432}
3433
046b007d 3434static int
ab273af8 3435bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 3436{
3437 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
46d1c23b 3438 struct mach_o_linkedit_data_command_external raw;
046b007d 3439
46d1c23b
TG		 3440 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3441 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3442 return -1;
3443
46d1c23b
TG		 3444 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
3445 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
046b007d
TG		 3446 return 0;
3447}
3448
3449static int
ab273af8 3450bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
046b007d
TG		 3451{
3452 bfd_mach_o_str_command *cmd = &command->command.str;
46d1c23b 3453 struct mach_o_str_command_external raw;
046b007d
TG		 3454 unsigned long off;
3455
46d1c23b
TG		 3456 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3457 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
046b007d
TG		 3458 return -1;
3459
46d1c23b 3460 off = bfd_get_32 (abfd, raw.str);
046b007d
TG		 3461 cmd->stroff = command->offset + off;
3462 cmd->str_len = command->len - off;
3463 cmd->str = bfd_alloc (abfd, cmd->str_len);
3464 if (cmd->str == NULL)
3465 return -1;
3466 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
91d6fa6a 3467 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
046b007d
TG		 3468 return -1;
3469 return 0;
3470}
3471
ad86f1fb 3472static int
ab273af8 3473bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
ad86f1fb
TG		 3474{
3475 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
46d1c23b 3476 struct mach_o_dyld_info_command_external raw;
ad86f1fb 3477
46d1c23b
TG		 3478 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3479 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
ad86f1fb
TG		 3480 return -1;
3481
46d1c23b
TG		 3482 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
3483 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
3484 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
3485 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
3486 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
3487 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
3488 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
3489 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
3490 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
3491 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
ad86f1fb
TG		 3492 return 0;
3493}
3494
edbdea0e
TG		 3495static bfd_boolean
3496bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
3497{
3498 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
3499 struct mach_o_version_min_command_external raw;
3500 unsigned int ver;
3501
3502 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3503 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3504 return FALSE;
3505
3506 ver = bfd_get_32 (abfd, raw.version);
3507 cmd->rel = ver >> 16;
3508 cmd->maj = ver >> 8;
3509 cmd->min = ver;
3510 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
3511 return TRUE;
3512}
3513
fc55a902
TG		 3514static bfd_boolean
3515bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
3516{
3517 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
3518 struct mach_o_encryption_info_command_external raw;
3519
3520 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3521 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3522 return FALSE;
3523
3524 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
3525 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
3526 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
3527 return TRUE;
3528}
3529
3af9a47b 3530static int
ab273af8
TG		 3531bfd_mach_o_read_segment (bfd *abfd,
3532 bfd_mach_o_load_command *command,
3533 unsigned int wide)
3af9a47b 3534{
3af9a47b
NC		 3535 bfd_mach_o_segment_command *seg = &command->command.segment;
3536 unsigned long i;
a95a4550 3537
1e8a024a
TG		 3538 if (wide)
3539 {
46d1c23b
TG		 3540 struct mach_o_segment_command_64_external raw;
3541
1e8a024a 3542 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
3af9a47b 3543
46d1c23b
TG		 3544 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3545 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3546 return -1;
3af9a47b 3547
46d1c23b 3548 memcpy (seg->segname, raw.segname, 16);
15e1c58a 3549 seg->segname[16] = '\0';
1e8a024a 3550
46d1c23b
TG		 3551 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
3552 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
3553 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
3554 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
3555 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
3556 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
3557 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
3558 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a
TG		 3559 }
3560 else
3561 {
46d1c23b
TG		 3562 struct mach_o_segment_command_32_external raw;
3563
1e8a024a
TG		 3564 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
3565
46d1c23b
TG		 3566 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
3567 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3568 return -1;
1e8a024a 3569
46d1c23b 3570 memcpy (seg->segname, raw.segname, 16);
15e1c58a 3571 seg->segname[16] = '\0';
1e8a024a 3572
46d1c23b
TG		 3573 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
3574 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
3575 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
3576 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
3577 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
3578 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
3579 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
3580 seg->flags = bfd_h_get_32 (abfd, raw.flags);
1e8a024a 3581 }
9d4b6009
TG		 3582 seg->sect_head = NULL;
3583 seg->sect_tail = NULL;
3af9a47b 3584
f1bde64c 3585 for (i = 0; i < seg->nsects; i++)
3af9a47b 3586 {
f1bde64c
TG		 3587 bfd_vma segoff;
3588 asection *sec;
a95a4550 3589
f1bde64c
TG		 3590 if (wide)
3591 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_64_SIZE
3592 + (i * BFD_MACH_O_SECTION_64_SIZE);
3593 else
3594 segoff = command->offset + BFD_MACH_O_LC_SEGMENT_SIZE
3595 + (i * BFD_MACH_O_SECTION_SIZE);
3af9a47b 3596
f1bde64c
TG		 3597 sec = bfd_mach_o_read_section (abfd, segoff, seg->initprot, wide);
3598 if (sec == NULL)
3599 return -1;
3600
3601 bfd_mach_o_append_section_to_segment (seg, sec);
3af9a47b
NC		 3602 }
3603
3604 return 0;
3605}
3606
1e8a024a 3607static int
ab273af8 3608bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 3609{
ab273af8 3610 return bfd_mach_o_read_segment (abfd, command, 0);
1e8a024a
TG		 3611}
3612
3613static int
ab273af8 3614bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1e8a024a 3615{
ab273af8 3616 return bfd_mach_o_read_segment (abfd, command, 1);
1e8a024a
TG		 3617}
3618
3af9a47b 3619static int
ab273af8 3620bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
3af9a47b 3621{
46d1c23b
TG		 3622 struct mach_o_load_command_external raw;
3623 unsigned int cmd;
3af9a47b 3624
046b007d 3625 /* Read command type and length. */
c2f09c75 3626 if (bfd_seek (abfd, command->offset, SEEK_SET) != 0
46d1c23b 3627 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
3af9a47b
NC		 3628 return -1;
3629
46d1c23b
TG		 3630 cmd = bfd_h_get_32 (abfd, raw.cmd);
3631 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
3632 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
3633 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
3af9a47b
NC		 3634
3635 switch (command->type)
3636 {
3637 case BFD_MACH_O_LC_SEGMENT:
ab273af8 3638 if (bfd_mach_o_read_segment_32 (abfd, command) != 0)
1e8a024a
TG		 3639 return -1;
3640 break;
3641 case BFD_MACH_O_LC_SEGMENT_64:
ab273af8 3642 if (bfd_mach_o_read_segment_64 (abfd, command) != 0)
3af9a47b
NC		 3643 return -1;
3644 break;
3645 case BFD_MACH_O_LC_SYMTAB:
ab273af8 3646 if (bfd_mach_o_read_symtab (abfd, command) != 0)
3af9a47b
NC		 3647 return -1;
3648 break;
3649 case BFD_MACH_O_LC_SYMSEG:
3650 break;
3651 case BFD_MACH_O_LC_THREAD:
3652 case BFD_MACH_O_LC_UNIXTHREAD:
ab273af8 3653 if (bfd_mach_o_read_thread (abfd, command) != 0)
3af9a47b
NC		 3654 return -1;
3655 break;
3656 case BFD_MACH_O_LC_LOAD_DYLINKER:
3657 case BFD_MACH_O_LC_ID_DYLINKER:
ab273af8 3658 if (bfd_mach_o_read_dylinker (abfd, command) != 0)
3af9a47b
NC		 3659 return -1;
3660 break;
3661 case BFD_MACH_O_LC_LOAD_DYLIB:
3662 case BFD_MACH_O_LC_ID_DYLIB:
3663 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
046b007d 3664 case BFD_MACH_O_LC_REEXPORT_DYLIB:
73017762 3665 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
ab273af8 3666 if (bfd_mach_o_read_dylib (abfd, command) != 0)
3af9a47b
NC		 3667 return -1;
3668 break;
3669 case BFD_MACH_O_LC_PREBOUND_DYLIB:
ab273af8 3670 if (bfd_mach_o_read_prebound_dylib (abfd, command) != 0)
3af9a47b
NC		 3671 return -1;
3672 break;
3673 case BFD_MACH_O_LC_LOADFVMLIB:
3674 case BFD_MACH_O_LC_IDFVMLIB:
9f4a5bd1
TG		 3675 if (bfd_mach_o_read_fvmlib (abfd, command) != 0)
3676 return -1;
3677 break;
3af9a47b
NC		 3678 case BFD_MACH_O_LC_IDENT:
3679 case BFD_MACH_O_LC_FVMFILE:
3680 case BFD_MACH_O_LC_PREPAGE:
3681 case BFD_MACH_O_LC_ROUTINES:
9b02d212 3682 case BFD_MACH_O_LC_ROUTINES_64:
046b007d 3683 break;
3af9a47b 3684 case BFD_MACH_O_LC_SUB_FRAMEWORK:
046b007d
TG		 3685 case BFD_MACH_O_LC_SUB_UMBRELLA:
3686 case BFD_MACH_O_LC_SUB_LIBRARY:
3687 case BFD_MACH_O_LC_SUB_CLIENT:
0c9b2b4c 3688 case BFD_MACH_O_LC_RPATH:
ab273af8 3689 if (bfd_mach_o_read_str (abfd, command) != 0)
046b007d 3690 return -1;
3af9a47b
NC		 3691 break;
3692 case BFD_MACH_O_LC_DYSYMTAB:
ab273af8 3693 if (bfd_mach_o_read_dysymtab (abfd, command) != 0)
3af9a47b
NC		 3694 return -1;
3695 break;
3af9a47b
NC		 3696 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
3697 case BFD_MACH_O_LC_PREBIND_CKSUM:
3698 break;
15e1c58a 3699 case BFD_MACH_O_LC_UUID:
ab273af8 3700 if (bfd_mach_o_read_uuid (abfd, command) != 0)
15e1c58a
TG		 3701 return -1;
3702 break;
3703 case BFD_MACH_O_LC_CODE_SIGNATURE:
846b9259 3704 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
edbdea0e 3705 case BFD_MACH_O_LC_FUNCTION_STARTS:
ab273af8 3706 if (bfd_mach_o_read_linkedit (abfd, command) != 0)
046b007d 3707 return -1;
15e1c58a 3708 break;
fc55a902
TG		 3709 case BFD_MACH_O_LC_ENCRYPTION_INFO:
3710 if (!bfd_mach_o_read_encryption_info (abfd, command))
3711 return -1;
3712 break;
ad86f1fb 3713 case BFD_MACH_O_LC_DYLD_INFO:
ab273af8 3714 if (bfd_mach_o_read_dyld_info (abfd, command) != 0)
ad86f1fb
TG		 3715 return -1;
3716 break;
edbdea0e
TG		 3717 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
3718 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
3719 if (!bfd_mach_o_read_version_min (abfd, command))
3720 return -1;
3721 break;
3af9a47b 3722 default:
fc55a902 3723 (*_bfd_error_handler)(_("%B: unknown load command 0x%lx"),
c0d9d051 3724 abfd, (unsigned long) command->type);
3af9a47b
NC		 3725 break;
3726 }
3727
3728 return 0;
3729}
3730
3731static void
116c20d2 3732bfd_mach_o_flatten_sections (bfd *abfd)
3af9a47b 3733{
046b007d 3734 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b 3735 long csect = 0;
f1bde64c 3736 unsigned long i;
a95a4550 3737
15e1c58a 3738 /* Count total number of sections. */
3af9a47b
NC		 3739 mdata->nsects = 0;
3740
3741 for (i = 0; i < mdata->header.ncmds; i++)
3742 {
1e8a024a
TG		 3743 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
3744 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 3745 {
e84d6fca
AM		 3746 bfd_mach_o_segment_command *seg;
3747
3748 seg = &mdata->commands[i].command.segment;
3af9a47b
NC		 3749 mdata->nsects += seg->nsects;
3750 }
3751 }
3752
15e1c58a 3753 /* Allocate sections array. */
e84d6fca
AM		 3754 mdata->sections = bfd_alloc (abfd,
3755 mdata->nsects * sizeof (bfd_mach_o_section *));
15e1c58a
TG		 3756
3757 /* Fill the array. */
3af9a47b
NC		 3758 csect = 0;
3759
3760 for (i = 0; i < mdata->header.ncmds; i++)
3761 {
1e8a024a
TG		 3762 if (mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT
3763 || mdata->commands[i].type == BFD_MACH_O_LC_SEGMENT_64)
3af9a47b 3764 {
e84d6fca 3765 bfd_mach_o_segment_command *seg;
f1bde64c 3766 bfd_mach_o_section *sec;
3af9a47b 3767
e84d6fca 3768 seg = &mdata->commands[i].command.segment;
3af9a47b
NC		 3769 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
3770
f1bde64c
TG		 3771 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
3772 mdata->sections[csect++] = sec;
3af9a47b
NC		 3773 }
3774 }
3775}
3776
afbb9e17 3777static bfd_boolean
116c20d2 3778bfd_mach_o_scan_start_address (bfd *abfd)
3af9a47b 3779{
046b007d 3780 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 3781 bfd_mach_o_thread_command *cmd = NULL;
3782 unsigned long i;
3783
3784 for (i = 0; i < mdata->header.ncmds; i++)
afbb9e17
TG		 3785 if ((mdata->commands[i].type == BFD_MACH_O_LC_THREAD) ||
3786 (mdata->commands[i].type == BFD_MACH_O_LC_UNIXTHREAD))
3787 {
3788 cmd = &mdata->commands[i].command.thread;
3789 break;
3790 }
3af9a47b
NC		 3791
3792 if (cmd == NULL)
afbb9e17 3793 return FALSE;
3af9a47b 3794
afbb9e17 3795 /* FIXME: create a subtarget hook ? */
3af9a47b
NC		 3796 for (i = 0; i < cmd->nflavours; i++)
3797 {
a95a4550 3798 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
e84d6fca 3799 && (cmd->flavours[i].flavour
15e1c58a 3800 == (unsigned long) BFD_MACH_O_x86_THREAD_STATE32))
3af9a47b
NC		 3801 {
3802 unsigned char buf[4];
3803
c2f09c75
TG		 3804 if (bfd_seek (abfd, cmd->flavours[i].offset + 40, SEEK_SET) != 0
3805 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 3806 return FALSE;
3af9a47b
NC		 3807
3808 abfd->start_address = bfd_h_get_32 (abfd, buf);
3809 }
a95a4550 3810 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
3af9a47b
NC		 3811 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
3812 {
3813 unsigned char buf[4];
3814
c2f09c75
TG		 3815 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
3816 || bfd_bread (buf, 4, abfd) != 4)
afbb9e17 3817 return FALSE;
3af9a47b
NC		 3818
3819 abfd->start_address = bfd_h_get_32 (abfd, buf);
3820 }
1e8a024a 3821 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
b32e07d7 3822 && (cmd->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
1e8a024a
TG		 3823 {
3824 unsigned char buf[8];
3825
c2f09c75
TG		 3826 if (bfd_seek (abfd, cmd->flavours[i].offset + 0, SEEK_SET) != 0
3827 || bfd_bread (buf, 8, abfd) != 8)
afbb9e17 3828 return FALSE;
1e8a024a
TG		 3829
3830 abfd->start_address = bfd_h_get_64 (abfd, buf);
3831 }
3832 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
3833 && (cmd->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
3834 {
3835 unsigned char buf[8];
3836
c2f09c75
TG		 3837 if (bfd_seek (abfd, cmd->flavours[i].offset + (16 * 8), SEEK_SET) != 0
3838 || bfd_bread (buf, 8, abfd) != 8)
afbb9e17 3839 return FALSE;
1e8a024a
TG		 3840
3841 abfd->start_address = bfd_h_get_64 (abfd, buf);
3842 }
3af9a47b
NC		 3843 }
3844
afbb9e17 3845 return TRUE;
3af9a47b
NC		 3846}
3847
42fa0891
TG		 3848bfd_boolean
3849bfd_mach_o_set_arch_mach (bfd *abfd,
3850 enum bfd_architecture arch,
3851 unsigned long machine)
3852{
3853 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
3854
3855 /* If this isn't the right architecture for this backend, and this
3856 isn't the generic backend, fail. */
3857 if (arch != bed->arch
3858 && arch != bfd_arch_unknown
3859 && bed->arch != bfd_arch_unknown)
3860 return FALSE;
3861
3862 return bfd_default_set_arch_mach (abfd, arch, machine);
3863}
3864
afbb9e17 3865static bfd_boolean
116c20d2
NC		 3866bfd_mach_o_scan (bfd *abfd,
3867 bfd_mach_o_header *header,
3868 bfd_mach_o_data_struct *mdata)
3af9a47b
NC		 3869{
3870 unsigned int i;
3af9a47b
NC		 3871 enum bfd_architecture cputype;
3872 unsigned long cpusubtype;
1e8a024a
TG		 3873 unsigned int hdrsize;
3874
c2f09c75 3875 hdrsize = mach_o_wide_p (header) ?
154a1ee5 3876 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3af9a47b 3877
3af9a47b 3878 mdata->header = *header;
3af9a47b 3879
154a1ee5 3880 abfd->flags = abfd->flags & BFD_IN_MEMORY;
15e1c58a
TG		 3881 switch (header->filetype)
3882 {
3883 case BFD_MACH_O_MH_OBJECT:
3884 abfd->flags |= HAS_RELOC;
3885 break;
3886 case BFD_MACH_O_MH_EXECUTE:
3887 abfd->flags |= EXEC_P;
3888 break;
3889 case BFD_MACH_O_MH_DYLIB:
3890 case BFD_MACH_O_MH_BUNDLE:
3891 abfd->flags |= DYNAMIC;
3892 break;
3893 }
3894
3af9a47b
NC		 3895 abfd->tdata.mach_o_data = mdata;
3896
e84d6fca
AM		 3897 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
3898 &cputype, &cpusubtype);
3af9a47b
NC		 3899 if (cputype == bfd_arch_unknown)
3900 {
afbb9e17
TG		 3901 (*_bfd_error_handler)
3902 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
3903 header->cputype, header->cpusubtype);
3904 return FALSE;
3af9a47b
NC		 3905 }
3906
3907 bfd_set_arch_mach (abfd, cputype, cpusubtype);
a95a4550 3908
3af9a47b
NC		 3909 if (header->ncmds != 0)
3910 {
046b007d
TG		 3911 mdata->commands = bfd_alloc
3912 (abfd, header->ncmds * sizeof (bfd_mach_o_load_command));
3af9a47b 3913 if (mdata->commands == NULL)
afbb9e17 3914 return FALSE;
a95a4550 3915
3af9a47b
NC		 3916 for (i = 0; i < header->ncmds; i++)
3917 {
3918 bfd_mach_o_load_command *cur = &mdata->commands[i];
3919
3920 if (i == 0)
1e8a024a 3921 cur->offset = hdrsize;
3af9a47b
NC		 3922 else
3923 {
3924 bfd_mach_o_load_command *prev = &mdata->commands[i - 1];
3925 cur->offset = prev->offset + prev->len;
3926 }
3927
ab273af8 3928 if (bfd_mach_o_read_command (abfd, cur) < 0)
afbb9e17 3929 return FALSE;
a95a4550 3930 }
3af9a47b
NC		 3931 }
3932
3933 if (bfd_mach_o_scan_start_address (abfd) < 0)
afbb9e17 3934 return FALSE;
3af9a47b
NC		 3935
3936 bfd_mach_o_flatten_sections (abfd);
afbb9e17 3937 return TRUE;
3af9a47b
NC		 3938}
3939
b34976b6 3940bfd_boolean
154a1ee5 3941bfd_mach_o_mkobject_init (bfd *abfd)
3af9a47b
NC		 3942{
3943 bfd_mach_o_data_struct *mdata = NULL;
3944
116c20d2 3945 mdata = bfd_alloc (abfd, sizeof (bfd_mach_o_data_struct));
3af9a47b 3946 if (mdata == NULL)
b34976b6 3947 return FALSE;
3af9a47b
NC		 3948 abfd->tdata.mach_o_data = mdata;
3949
3950 mdata->header.magic = 0;
3951 mdata->header.cputype = 0;
3952 mdata->header.cpusubtype = 0;
3953 mdata->header.filetype = 0;
3954 mdata->header.ncmds = 0;
3955 mdata->header.sizeofcmds = 0;
3956 mdata->header.flags = 0;
3957 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
3958 mdata->commands = NULL;
3af9a47b
NC		 3959 mdata->nsects = 0;
3960 mdata->sections = NULL;
4434114c 3961 mdata->dyn_reloc_cache = NULL;
3af9a47b 3962
b34976b6 3963 return TRUE;
3af9a47b
NC		 3964}
3965
42fa0891
TG		 3966static bfd_boolean
3967bfd_mach_o_gen_mkobject (bfd *abfd)
3968{
3969 bfd_mach_o_data_struct *mdata;
3970
3971 if (!bfd_mach_o_mkobject_init (abfd))
3972 return FALSE;
3973
3974 mdata = bfd_mach_o_get_data (abfd);
3975 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
3976 mdata->header.cputype = 0;
3977 mdata->header.cpusubtype = 0;
3978 mdata->header.byteorder = abfd->xvec->byteorder;
3979 mdata->header.version = 1;
3980
3981 return TRUE;
3982}
3983
3af9a47b 3984const bfd_target *
154a1ee5
TG		 3985bfd_mach_o_header_p (bfd *abfd,
3986 bfd_mach_o_filetype filetype,
3987 bfd_mach_o_cpu_type cputype)
3af9a47b 3988{
e84d6fca 3989 struct bfd_preserve preserve;
3af9a47b
NC		 3990 bfd_mach_o_header header;
3991
e84d6fca 3992 preserve.marker = NULL;
154a1ee5 3993 if (!bfd_mach_o_read_header (abfd, &header))
e84d6fca 3994 goto wrong;
3af9a47b 3995
e84d6fca
AM		 3996 if (! (header.byteorder == BFD_ENDIAN_BIG
3997 || header.byteorder == BFD_ENDIAN_LITTLE))
3af9a47b 3998 {
4a97a0e5
AM		 3999 (*_bfd_error_handler) (_("unknown header byte-order value 0x%lx"),
4000 (unsigned long) header.byteorder);
e84d6fca 4001 goto wrong;
3af9a47b
NC		 4002 }
4003
e84d6fca
AM		 4004 if (! ((header.byteorder == BFD_ENDIAN_BIG
4005 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
4006 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
4007 || (header.byteorder == BFD_ENDIAN_LITTLE
4008 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
4009 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
4010 goto wrong;
3af9a47b 4011
154a1ee5
TG		 4012 /* Check cputype and filetype.
4013 In case of wildcard, do not accept magics that are handled by existing
4014 targets. */
4015 if (cputype)
4016 {
4017 if (header.cputype != cputype)
4018 goto wrong;
4019 }
b22161d6 4020
154a1ee5
TG		 4021 if (filetype)
4022 {
4023 if (header.filetype != filetype)
4024 goto wrong;
4025 }
4026 else
4027 {
4028 switch (header.filetype)
4029 {
4030 case BFD_MACH_O_MH_CORE:
4031 /* Handled by core_p */
4032 goto wrong;
4033 default:
4034 break;
4035 }
4036 }
4037
e84d6fca
AM		 4038 preserve.marker = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
4039 if (preserve.marker == NULL
4040 || !bfd_preserve_save (abfd, &preserve))
4041 goto fail;
3af9a47b 4042
afbb9e17
TG		 4043 if (!bfd_mach_o_scan (abfd, &header,
4044 (bfd_mach_o_data_struct *) preserve.marker))
e84d6fca 4045 goto wrong;
a95a4550 4046
e84d6fca 4047 bfd_preserve_finish (abfd, &preserve);
3af9a47b 4048 return abfd->xvec;
e84d6fca
AM		 4049
4050 wrong:
4051 bfd_set_error (bfd_error_wrong_format);
4052
4053 fail:
4054 if (preserve.marker != NULL)
4055 bfd_preserve_restore (abfd, &preserve);
4056 return NULL;
3af9a47b
NC		 4057}
4058
154a1ee5
TG		 4059static const bfd_target *
4060bfd_mach_o_gen_object_p (bfd *abfd)
3af9a47b 4061{
154a1ee5
TG		 4062 return bfd_mach_o_header_p (abfd, 0, 0);
4063}
e84d6fca 4064
154a1ee5
TG		 4065static const bfd_target *
4066bfd_mach_o_gen_core_p (bfd *abfd)
4067{
4068 return bfd_mach_o_header_p (abfd, BFD_MACH_O_MH_CORE, 0);
3af9a47b
NC		 4069}
4070
4071typedef struct mach_o_fat_archentry
4072{
4073 unsigned long cputype;
4074 unsigned long cpusubtype;
4075 unsigned long offset;
4076 unsigned long size;
4077 unsigned long align;
3af9a47b
NC		 4078} mach_o_fat_archentry;
4079
4080typedef struct mach_o_fat_data_struct
4081{
4082 unsigned long magic;
4083 unsigned long nfat_arch;
4084 mach_o_fat_archentry *archentries;
4085} mach_o_fat_data_struct;
4086
4087const bfd_target *
116c20d2 4088bfd_mach_o_archive_p (bfd *abfd)
3af9a47b 4089{
e84d6fca 4090 mach_o_fat_data_struct *adata = NULL;
46d1c23b 4091 struct mach_o_fat_header_external hdr;
3af9a47b
NC		 4092 unsigned long i;
4093
c2f09c75 4094 if (bfd_seek (abfd, 0, SEEK_SET) != 0
46d1c23b 4095 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
e84d6fca 4096 goto error;
3af9a47b 4097
116c20d2 4098 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
3af9a47b 4099 if (adata == NULL)
e84d6fca 4100 goto error;
a95a4550 4101
46d1c23b
TG		 4102 adata->magic = bfd_getb32 (hdr.magic);
4103 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
3af9a47b 4104 if (adata->magic != 0xcafebabe)
e84d6fca 4105 goto error;
27cc28f9
AS		 4106 /* Avoid matching Java bytecode files, which have the same magic number.
4107 In the Java bytecode file format this field contains the JVM version,
4108 which starts at 43.0. */
4109 if (adata->nfat_arch > 30)
4110 goto error;
3af9a47b 4111
c2f09c75 4112 adata->archentries =
3af9a47b
NC		 4113 bfd_alloc (abfd, adata->nfat_arch * sizeof (mach_o_fat_archentry));
4114 if (adata->archentries == NULL)
e84d6fca 4115 goto error;
3af9a47b
NC		 4116
4117 for (i = 0; i < adata->nfat_arch; i++)
4118 {
46d1c23b
TG		 4119 struct mach_o_fat_arch_external arch;
4120 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
e84d6fca 4121 goto error;
46d1c23b
TG		 4122 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
4123 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
4124 adata->archentries[i].offset = bfd_getb32 (arch.offset);
4125 adata->archentries[i].size = bfd_getb32 (arch.size);
4126 adata->archentries[i].align = bfd_getb32 (arch.align);
3af9a47b
NC		 4127 }
4128
4129 abfd->tdata.mach_o_fat_data = adata;
4130 return abfd->xvec;
e84d6fca
AM		 4131
4132 error:
4133 if (adata != NULL)
4134 bfd_release (abfd, adata);
4135 bfd_set_error (bfd_error_wrong_format);
4136 return NULL;
3af9a47b
NC		 4137}
4138
a4e241ca
TG		 4139/* Set the filename for a fat binary member ABFD, whose bfd architecture is
4140 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
4141 Set arelt_data and origin fields too. */
4142
4143static void
4144bfd_mach_o_fat_member_init (bfd *abfd,
4145 enum bfd_architecture arch_type,
4146 unsigned long arch_subtype,
4147 mach_o_fat_archentry *entry)
4148{
4149 struct areltdata *areltdata;
4150 /* Create the member filename. Use ARCH_NAME. */
4151 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
4152
4153 if (ap)
4154 {
4155 /* Use the architecture name if known. */
4156 abfd->filename = ap->printable_name;
4157 }
4158 else
4159 {
4160 /* Forge a uniq id. */
4161 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
4162 char *name = bfd_alloc (abfd, namelen);
4163 snprintf (name, namelen, "0x%lx-0x%lx",
4164 entry->cputype, entry->cpusubtype);
4165 abfd->filename = name;
4166 }
4167
4168 areltdata = bfd_zalloc (abfd, sizeof (struct areltdata));
4169 areltdata->parsed_size = entry->size;
4170 abfd->arelt_data = areltdata;
4171 abfd->iostream = NULL;
4172 abfd->origin = entry->offset;
4173}
4174
3af9a47b 4175bfd *
116c20d2 4176bfd_mach_o_openr_next_archived_file (bfd *archive, bfd *prev)
3af9a47b 4177{
e84d6fca 4178 mach_o_fat_data_struct *adata;
3af9a47b
NC		 4179 mach_o_fat_archentry *entry = NULL;
4180 unsigned long i;
15e1c58a 4181 bfd *nbfd;
15e1c58a
TG		 4182 enum bfd_architecture arch_type;
4183 unsigned long arch_subtype;
3af9a47b 4184
e84d6fca 4185 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
3af9a47b
NC		 4186 BFD_ASSERT (adata != NULL);
4187
4188 /* Find index of previous entry. */
4189 if (prev == NULL)
a4e241ca
TG		 4190 {
4191 /* Start at first one. */
4192 i = 0;
4193 }
3af9a47b
NC		 4194 else
4195 {
a4e241ca 4196 /* Find index of PREV. */
3af9a47b
NC		 4197 for (i = 0; i < adata->nfat_arch; i++)
4198 {
15e1c58a 4199 if (adata->archentries[i].offset == prev->origin)
3af9a47b
NC		 4200 break;
4201 }
4202
4203 if (i == adata->nfat_arch)
4204 {
4205 /* Not found. */
4206 bfd_set_error (bfd_error_bad_value);
a95a4550 4207 return NULL;
3af9a47b 4208 }
a4e241ca
TG		 4209
4210 /* Get next entry. */
4211 i++;
4212 }
a95a4550 4213
3af9a47b
NC		 4214 if (i >= adata->nfat_arch)
4215 {
4216 bfd_set_error (bfd_error_no_more_archived_files);
4217 return NULL;
4218 }
4219
4220 entry = &adata->archentries[i];
15e1c58a
TG		 4221 nbfd = _bfd_new_bfd_contained_in (archive);
4222 if (nbfd == NULL)
4223 return NULL;
4224
15e1c58a
TG		 4225 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
4226 &arch_type, &arch_subtype);
846b9259 4227
a4e241ca
TG		 4228 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
4229
846b9259 4230 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
3af9a47b 4231
15e1c58a 4232 return nbfd;
3af9a47b
NC		 4233}
4234
15bbba8d
TG		 4235/* Analogous to stat call. */
4236
4237static int
4238bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
4239{
4240 if (abfd->arelt_data == NULL)
4241 {
4242 bfd_set_error (bfd_error_invalid_operation);
4243 return -1;
4244 }
4245
4246 buf->st_mtime = 0;
4247 buf->st_uid = 0;
4248 buf->st_gid = 0;
4249 buf->st_mode = 0644;
4250 buf->st_size = arelt_size (abfd);
4251
4252 return 0;
4253}
4254
846b9259
TG		 4255/* If ABFD format is FORMAT and architecture is ARCH, return it.
4256 If ABFD is a fat image containing a member that corresponds to FORMAT
4257 and ARCH, returns it.
4258 In other case, returns NULL.
4259 This function allows transparent uses of fat images. */
a4e241ca 4260
846b9259
TG		 4261bfd *
4262bfd_mach_o_fat_extract (bfd *abfd,
4263 bfd_format format,
4264 const bfd_arch_info_type *arch)
4265{
4266 bfd *res;
4267 mach_o_fat_data_struct *adata;
4268 unsigned int i;
4269
4270 if (bfd_check_format (abfd, format))
4271 {
4272 if (bfd_get_arch_info (abfd) == arch)
4273 return abfd;
4274 return NULL;
4275 }
4276 if (!bfd_check_format (abfd, bfd_archive)
4277 || abfd->xvec != &mach_o_fat_vec)
4278 return NULL;
c2f09c75 4279
846b9259
TG		 4280 /* This is a Mach-O fat image. */
4281 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
4282 BFD_ASSERT (adata != NULL);
4283
4284 for (i = 0; i < adata->nfat_arch; i++)
4285 {
4286 struct mach_o_fat_archentry *e = &adata->archentries[i];
4287 enum bfd_architecture cpu_type;
4288 unsigned long cpu_subtype;
4289
4290 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
4291 &cpu_type, &cpu_subtype);
4292 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
4293 continue;
4294
4295 /* The architecture is found. */
4296 res = _bfd_new_bfd_contained_in (abfd);
4297 if (res == NULL)
4298 return NULL;
4299
a4e241ca 4300 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
846b9259
TG		 4301
4302 if (bfd_check_format (res, format))
4303 {
4304 BFD_ASSERT (bfd_get_arch_info (res) == arch);
4305 return res;
4306 }
4307 bfd_close (res);
4308 return NULL;
4309 }
4310
4311 return NULL;
4312}
4313
3af9a47b 4314int
116c20d2
NC		 4315bfd_mach_o_lookup_command (bfd *abfd,
4316 bfd_mach_o_load_command_type type,
4317 bfd_mach_o_load_command **mcommand)
3af9a47b 4318{
046b007d 4319 struct mach_o_data_struct *md = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 4320 bfd_mach_o_load_command *ncmd = NULL;
4321 unsigned int i, num;
4322
3af9a47b
NC		 4323 BFD_ASSERT (md != NULL);
4324 BFD_ASSERT (mcommand != NULL);
4325
4326 num = 0;
4327 for (i = 0; i < md->header.ncmds; i++)
4328 {
4329 struct bfd_mach_o_load_command *cmd = &md->commands[i];
4330
4331 if (cmd->type != type)
4332 continue;
4333
4334 if (num == 0)
4335 ncmd = cmd;
4336 num++;
4337 }
4338
4339 *mcommand = ncmd;
4340 return num;
4341}
4342
4343unsigned long
116c20d2 4344bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
3af9a47b
NC		 4345{
4346 switch (type)
4347 {
4348 case BFD_MACH_O_CPU_TYPE_MC680x0:
4349 return 0x04000000;
4350 case BFD_MACH_O_CPU_TYPE_MC88000:
4351 return 0xffffe000;
4352 case BFD_MACH_O_CPU_TYPE_POWERPC:
4353 return 0xc0000000;
4354 case BFD_MACH_O_CPU_TYPE_I386:
4355 return 0xc0000000;
4356 case BFD_MACH_O_CPU_TYPE_SPARC:
4357 return 0xf0000000;
4358 case BFD_MACH_O_CPU_TYPE_I860:
4359 return 0;
4360 case BFD_MACH_O_CPU_TYPE_HPPA:
e84d6fca 4361 return 0xc0000000 - 0x04000000;
3af9a47b
NC		 4362 default:
4363 return 0;
4364 }
4365}
4366
ab76eeaf
IS		 4367/* The following two tables should be kept, as far as possible, in order of
4368 most frequently used entries to optimize their use from gas. */
4369
c5012cd8 4370const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
046b007d
TG		 4371{
4372 { "regular", BFD_MACH_O_S_REGULAR},
ab76eeaf 4373 { "coalesced", BFD_MACH_O_S_COALESCED},
046b007d
TG		 4374 { "zerofill", BFD_MACH_O_S_ZEROFILL},
4375 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
4376 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
4377 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
ab76eeaf 4378 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
046b007d 4379 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
046b007d
TG		 4380 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
4381 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
046b007d
TG		 4382 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
4383 { "interposing", BFD_MACH_O_S_INTERPOSING},
046b007d 4384 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
ab76eeaf
IS		 4385 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
4386 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
a4551119 4387 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
046b007d
TG		 4388 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
4389 { NULL, 0}
4390};
4391
c5012cd8 4392const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
046b007d 4393{
ab76eeaf
IS		 4394 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
4395 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
046b007d
TG		 4396 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
4397 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
046b007d 4398 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
046b007d
TG		 4399 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
4400 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
4401 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
4402 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
a4551119 4403 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
ab76eeaf 4404 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
046b007d
TG		 4405 { NULL, 0}
4406};
4407
a4551119 4408/* Get the section type from NAME. Return 256 if NAME is unknown. */
53d58d96
TG		 4409
4410unsigned int
ab76eeaf 4411bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
53d58d96 4412{
afbb9e17 4413 const bfd_mach_o_xlat_name *x;
ab76eeaf 4414 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
53d58d96
TG		 4415
4416 for (x = bfd_mach_o_section_type_name; x->name; x++)
4417 if (strcmp (x->name, name) == 0)
ab76eeaf
IS		 4418 {
4419 /* We found it... does the target support it? */
4420 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
4421 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
4422 return x->val; /* OK. */
4423 else
4424 break; /* Not supported. */
4425 }
a4551119
TG		 4426 /* Maximum section ID = 0xff. */
4427 return 256;
53d58d96
TG		 4428}
4429
4430/* Get the section attribute from NAME. Return -1 if NAME is unknown. */
4431
4432unsigned int
4433bfd_mach_o_get_section_attribute_from_name (const char *name)
4434{
afbb9e17 4435 const bfd_mach_o_xlat_name *x;
53d58d96
TG		 4436
4437 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
4438 if (strcmp (x->name, name) == 0)
4439 return x->val;
4440 return (unsigned int)-1;
4441}
4442
3af9a47b 4443int
116c20d2
NC		 4444bfd_mach_o_core_fetch_environment (bfd *abfd,
4445 unsigned char **rbuf,
4446 unsigned int *rlen)
3af9a47b 4447{
046b007d 4448 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3af9a47b
NC		 4449 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
4450 unsigned int i = 0;
4451
4452 for (i = 0; i < mdata->header.ncmds; i++)
4453 {
4454 bfd_mach_o_load_command *cur = &mdata->commands[i];
4455 bfd_mach_o_segment_command *seg = NULL;
4456
4457 if (cur->type != BFD_MACH_O_LC_SEGMENT)
4458 continue;
4459
4460 seg = &cur->command.segment;
4461
4462 if ((seg->vmaddr + seg->vmsize) == stackaddr)
4463 {
4464 unsigned long start = seg->fileoff;
4465 unsigned long end = seg->fileoff + seg->filesize;
4466 unsigned char *buf = bfd_malloc (1024);
4467 unsigned long size = 1024;
4468
4469 for (;;)
4470 {
4471 bfd_size_type nread = 0;
4472 unsigned long offset;
4473 int found_nonnull = 0;
4474
4475 if (size > (end - start))
4476 size = (end - start);
4477
515ef31d
NC		 4478 buf = bfd_realloc_or_free (buf, size);
4479 if (buf == NULL)
4480 return -1;
c2f09c75
TG		 4481
4482 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
4483 {
4484 free (buf);
4485 return -1;
4486 }
4487
3af9a47b 4488 nread = bfd_bread (buf, size, abfd);
a95a4550 4489
3af9a47b 4490 if (nread != size)
515ef31d
NC		 4491 {
4492 free (buf);
4493 return -1;
4494 }
a95a4550 4495
3af9a47b
NC		 4496 for (offset = 4; offset <= size; offset += 4)
4497 {
e84d6fca 4498 unsigned long val;
3af9a47b 4499
e84d6fca 4500 val = *((unsigned long *) (buf + size - offset));
3af9a47b
NC		 4501 if (! found_nonnull)
4502 {
4503 if (val != 0)
4504 found_nonnull = 1;
4505 }
4506 else if (val == 0x0)
4507 {
e84d6fca
AM		 4508 unsigned long bottom;
4509 unsigned long top;
3af9a47b 4510
e84d6fca
AM		 4511 bottom = seg->fileoff + seg->filesize - offset;
4512 top = seg->fileoff + seg->filesize - 4;
3af9a47b
NC		 4513 *rbuf = bfd_malloc (top - bottom);
4514 *rlen = top - bottom;
4515
4516 memcpy (*rbuf, buf + size - *rlen, *rlen);
515ef31d 4517 free (buf);
3af9a47b
NC		 4518 return 0;
4519 }
4520 }
4521
4522 if (size == (end - start))
4523 break;
4524
4525 size *= 2;
4526 }
515ef31d
NC		 4527
4528 free (buf);
3af9a47b
NC		 4529 }
4530 }
4531
4532 return -1;
4533}
4534
4535char *
116c20d2 4536bfd_mach_o_core_file_failing_command (bfd *abfd)
3af9a47b
NC		 4537{
4538 unsigned char *buf = NULL;
4539 unsigned int len = 0;
4540 int ret = -1;
4541
4542 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
4543 if (ret < 0)
4544 return NULL;
4545
f075ee0c 4546 return (char *) buf;
3af9a47b
NC		 4547}
4548
4549int
116c20d2 4550bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
3af9a47b
NC		 4551{
4552 return 0;
4553}
4554
2ca7691a
TG		 4555static bfd_mach_o_uuid_command *
4556bfd_mach_o_lookup_uuid_command (bfd *abfd)
4557{
4558 bfd_mach_o_load_command *uuid_cmd;
4559 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
4560 if (ncmd != 1)
4561 return FALSE;
4562 return &uuid_cmd->command.uuid;
4563}
4564
4565/* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
4566
4567static bfd_boolean
4568bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
4569{
4570 bfd_mach_o_uuid_command *dsym_uuid_cmd;
4571
4572 BFD_ASSERT (abfd);
4573 BFD_ASSERT (uuid_cmd);
4574
4575 if (!bfd_check_format (abfd, bfd_object))
4576 return FALSE;
4577
4578 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
4579 || bfd_mach_o_get_data (abfd) == NULL
4580 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
4581 return FALSE;
4582
4583 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
4584 if (dsym_uuid_cmd == NULL)
4585 return FALSE;
4586
4587 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
4588 sizeof (uuid_cmd->uuid)) != 0)
4589 return FALSE;
4590
4591 return TRUE;
4592}
4593
4594/* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
4595 The caller is responsible for closing the returned BFD object and
4596 its my_archive if the returned BFD is in a fat dSYM. */
4597
4598static bfd *
4599bfd_mach_o_find_dsym (const char *dsym_filename,
4600 const bfd_mach_o_uuid_command *uuid_cmd,
4601 const bfd_arch_info_type *arch)
4602{
4603 bfd *base_dsym_bfd, *dsym_bfd;
4604
4605 BFD_ASSERT (uuid_cmd);
4606
4607 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
4608 if (base_dsym_bfd == NULL)
4609 return NULL;
4610
4611 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
4612 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
4613 return dsym_bfd;
4614
4615 bfd_close (dsym_bfd);
4616 if (base_dsym_bfd != dsym_bfd)
4617 bfd_close (base_dsym_bfd);
4618
4619 return NULL;
4620}
4621
4622/* Return a BFD created from a dSYM file for ABFD.
4623 The caller is responsible for closing the returned BFD object, its
4624 filename, and its my_archive if the returned BFD is in a fat dSYM. */
4625
4626static bfd *
4627bfd_mach_o_follow_dsym (bfd *abfd)
4628{
4629 char *dsym_filename;
4630 bfd_mach_o_uuid_command *uuid_cmd;
4631 bfd *dsym_bfd, *base_bfd = abfd;
4632 const char *base_basename;
4633
4634 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
4635 return NULL;
4636
4637 if (abfd->my_archive)
4638 base_bfd = abfd->my_archive;
4639 /* BFD may have been opened from a stream. */
4640 if (base_bfd->filename == NULL)
4641 {
4642 bfd_set_error (bfd_error_invalid_operation);
4643 return NULL;
4644 }
4645 base_basename = lbasename (base_bfd->filename);
4646
4647 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
4648 if (uuid_cmd == NULL)
4649 return NULL;
4650
4651 /* TODO: We assume the DWARF file has the same as the binary's.
4652 It seems apple's GDB checks all files in the dSYM bundle directory.
4653 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
4654 */
4655 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
4656 + strlen (dsym_subdir) + 1
4657 + strlen (base_basename) + 1);
4658 sprintf (dsym_filename, "%s%s/%s",
4659 base_bfd->filename, dsym_subdir, base_basename);
4660
4661 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
4662 bfd_get_arch_info (abfd));
4663 if (dsym_bfd == NULL)
4664 free (dsym_filename);
4665
4666 return dsym_bfd;
4667}
4668
d9071b0c
TG		 4669bfd_boolean
4670bfd_mach_o_find_nearest_line (bfd *abfd,
4671 asection *section,
4672 asymbol **symbols,
4673 bfd_vma offset,
4674 const char **filename_ptr,
4675 const char **functionname_ptr,
4676 unsigned int *line_ptr)
4677{
4678 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2ca7691a 4679 if (mdata == NULL)
d9071b0c 4680 return FALSE;
2ca7691a
TG		 4681 switch (mdata->header.filetype)
4682 {
4683 case BFD_MACH_O_MH_OBJECT:
4684 break;
4685 case BFD_MACH_O_MH_EXECUTE:
4686 case BFD_MACH_O_MH_DYLIB:
4687 case BFD_MACH_O_MH_BUNDLE:
4688 case BFD_MACH_O_MH_KEXT_BUNDLE:
4689 if (mdata->dwarf2_find_line_info == NULL)
4690 {
4691 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
4692 /* When we couldn't find dSYM for this binary, we look for
4693 the debug information in the binary itself. In this way,
4694 we won't try finding separated dSYM again because
4695 mdata->dwarf2_find_line_info will be filled. */
4696 if (! mdata->dsym_bfd)
4697 break;
4698 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
4699 dwarf_debug_sections, symbols,
4700 &mdata->dwarf2_find_line_info))
4701 return FALSE;
4702 }
4703 break;
4704 default:
4705 return FALSE;
4706 }
d9071b0c
TG		 4707 if (_bfd_dwarf2_find_nearest_line (abfd, dwarf_debug_sections,
4708 section, symbols, offset,
4709 filename_ptr, functionname_ptr,
4710 line_ptr, 0,
4711 &mdata->dwarf2_find_line_info))
4712 return TRUE;
4713 return FALSE;
4714}
4715
4716bfd_boolean
4717bfd_mach_o_close_and_cleanup (bfd *abfd)
4718{
4719 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4720 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
4434114c
TG		 4721 {
4722 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
4723 bfd_mach_o_free_cached_info (abfd);
2ca7691a
TG		 4724 if (mdata->dsym_bfd != NULL)
4725 {
4726 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
4727 char *dsym_filename = (char *)(fat_bfd
4728 ? fat_bfd->filename
4729 : mdata->dsym_bfd->filename);
4730 bfd_close (mdata->dsym_bfd);
4731 mdata->dsym_bfd = NULL;
4732 if (fat_bfd)
4733 bfd_close (fat_bfd);
4734 free (dsym_filename);
4735 }
4434114c 4736 }
dff55db0 4737
d9071b0c
TG		 4738 return _bfd_generic_close_and_cleanup (abfd);
4739}
4740
dff55db0
TG		 4741bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
4742{
4743 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4744 asection *asect;
4745 free (mdata->dyn_reloc_cache);
4746 mdata->dyn_reloc_cache = NULL;
4747 for (asect = abfd->sections; asect != NULL; asect = asect->next)
4748 {
4749 free (asect->relocation);
4750 asect->relocation = NULL;
4751 }
4752
4753 return TRUE;
4754}
4755
92bc0e80
TG		 4756#define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
4757#define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
4758
4759#define bfd_mach_o_swap_reloc_in NULL
4760#define bfd_mach_o_swap_reloc_out NULL
b32e07d7 4761#define bfd_mach_o_print_thread NULL
a4551119 4762#define bfd_mach_o_tgt_seg_table NULL
ab76eeaf 4763#define bfd_mach_o_section_type_valid_for_tgt NULL
92bc0e80 4764
116c20d2
NC		 4765#define TARGET_NAME mach_o_be_vec
4766#define TARGET_STRING "mach-o-be"
42fa0891 4767#define TARGET_ARCHITECTURE bfd_arch_unknown
116c20d2
NC		 4768#define TARGET_BIG_ENDIAN 1
4769#define TARGET_ARCHIVE 0
b93a1992 4770#define TARGET_PRIORITY 1
3af9a47b
NC		 4771#include "mach-o-target.c"
4772
4773#undef TARGET_NAME
4774#undef TARGET_STRING
42fa0891 4775#undef TARGET_ARCHITECTURE
3af9a47b
NC		 4776#undef TARGET_BIG_ENDIAN
4777#undef TARGET_ARCHIVE
b93a1992 4778#undef TARGET_PRIORITY
3af9a47b 4779
116c20d2
NC		 4780#define TARGET_NAME mach_o_le_vec
4781#define TARGET_STRING "mach-o-le"
42fa0891 4782#define TARGET_ARCHITECTURE bfd_arch_unknown
116c20d2
NC		 4783#define TARGET_BIG_ENDIAN 0
4784#define TARGET_ARCHIVE 0
b93a1992 4785#define TARGET_PRIORITY 1
3af9a47b
NC		 4786
4787#include "mach-o-target.c"
4788
4789#undef TARGET_NAME
4790#undef TARGET_STRING
42fa0891 4791#undef TARGET_ARCHITECTURE
3af9a47b
NC		 4792#undef TARGET_BIG_ENDIAN
4793#undef TARGET_ARCHIVE
b93a1992 4794#undef TARGET_PRIORITY
3af9a47b 4795
8f95b6e4
TG		 4796/* Not yet handled: creating an archive. */
4797#define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
4798
4799/* Not used. */
4800#define bfd_mach_o_read_ar_hdr _bfd_noarchive_read_ar_hdr
4801#define bfd_mach_o_write_ar_hdr _bfd_noarchive_write_ar_hdr
4802#define bfd_mach_o_slurp_armap _bfd_noarchive_slurp_armap
4803#define bfd_mach_o_slurp_extended_name_table _bfd_noarchive_slurp_extended_name_table
4804#define bfd_mach_o_construct_extended_name_table _bfd_noarchive_construct_extended_name_table
4805#define bfd_mach_o_truncate_arname _bfd_noarchive_truncate_arname
4806#define bfd_mach_o_write_armap _bfd_noarchive_write_armap
4807#define bfd_mach_o_get_elt_at_index _bfd_noarchive_get_elt_at_index
15bbba8d 4808#define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
8f95b6e4
TG		 4809#define bfd_mach_o_update_armap_timestamp _bfd_noarchive_update_armap_timestamp
4810
116c20d2
NC		 4811#define TARGET_NAME mach_o_fat_vec
4812#define TARGET_STRING "mach-o-fat"
42fa0891 4813#define TARGET_ARCHITECTURE bfd_arch_unknown
116c20d2
NC		 4814#define TARGET_BIG_ENDIAN 1
4815#define TARGET_ARCHIVE 1
b93a1992 4816#define TARGET_PRIORITY 0
3af9a47b
NC		 4817
4818#include "mach-o-target.c"
4819
4820#undef TARGET_NAME
4821#undef TARGET_STRING
42fa0891 4822#undef TARGET_ARCHITECTURE
3af9a47b
NC		 4823#undef TARGET_BIG_ENDIAN
4824#undef TARGET_ARCHIVE
b93a1992 4825#undef TARGET_PRIORITY
GDB Binutils - Deliverables
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