1 /* Mach-O support for BFD.
2 Copyright (C) 1999-2019 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
25 #include "libiberty.h"
27 #include "aout/stab_gnu.h"
28 #include "mach-o/reloc.h"
29 #include "mach-o/external.h"
34 #define bfd_mach_o_object_p bfd_mach_o_gen_object_p
35 #define bfd_mach_o_core_p bfd_mach_o_gen_core_p
36 #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject
38 #define FILE_ALIGN(off, algn) \
39 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn)))
42 bfd_mach_o_read_dyld_content (bfd
*abfd
, bfd_mach_o_dyld_info_command
*cmd
);
45 bfd_mach_o_version (bfd
*abfd
)
47 bfd_mach_o_data_struct
*mdata
= NULL
;
49 BFD_ASSERT (bfd_mach_o_valid (abfd
));
50 mdata
= bfd_mach_o_get_data (abfd
);
52 return mdata
->header
.version
;
56 bfd_mach_o_valid (bfd
*abfd
)
58 if (abfd
== NULL
|| abfd
->xvec
== NULL
)
61 if (abfd
->xvec
->flavour
!= bfd_target_mach_o_flavour
)
64 if (bfd_mach_o_get_data (abfd
) == NULL
)
69 static INLINE bfd_boolean
70 mach_o_wide_p (bfd_mach_o_header
*header
)
72 switch (header
->version
)
84 static INLINE bfd_boolean
85 bfd_mach_o_wide_p (bfd
*abfd
)
87 return mach_o_wide_p (&bfd_mach_o_get_data (abfd
)->header
);
90 /* Tables to translate well known Mach-O segment/section names to bfd
91 names. Use of canonical names (such as .text or .debug_frame) is required
95 static const mach_o_section_name_xlat text_section_names_xlat
[] =
98 SEC_CODE
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
99 BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
, 0},
100 { ".const", "__const",
101 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
102 BFD_MACH_O_S_ATTR_NONE
, 0},
103 { ".static_const", "__static_const",
104 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
105 BFD_MACH_O_S_ATTR_NONE
, 0},
106 { ".cstring", "__cstring",
107 SEC_READONLY
| SEC_DATA
| SEC_LOAD
| SEC_MERGE
| SEC_STRINGS
,
108 BFD_MACH_O_S_CSTRING_LITERALS
,
109 BFD_MACH_O_S_ATTR_NONE
, 0},
110 { ".literal4", "__literal4",
111 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_4BYTE_LITERALS
,
112 BFD_MACH_O_S_ATTR_NONE
, 2},
113 { ".literal8", "__literal8",
114 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_8BYTE_LITERALS
,
115 BFD_MACH_O_S_ATTR_NONE
, 3},
116 { ".literal16", "__literal16",
117 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_16BYTE_LITERALS
,
118 BFD_MACH_O_S_ATTR_NONE
, 4},
119 { ".constructor", "__constructor",
120 SEC_CODE
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
121 BFD_MACH_O_S_ATTR_NONE
, 0},
122 { ".destructor", "__destructor",
123 SEC_CODE
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
124 BFD_MACH_O_S_ATTR_NONE
, 0},
125 { ".eh_frame", "__eh_frame",
126 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_COALESCED
,
127 BFD_MACH_O_S_ATTR_LIVE_SUPPORT
128 | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
129 | BFD_MACH_O_S_ATTR_NO_TOC
, 2},
130 { NULL
, NULL
, 0, 0, 0, 0}
133 /* __DATA Segment. */
134 static const mach_o_section_name_xlat data_section_names_xlat
[] =
137 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
138 BFD_MACH_O_S_ATTR_NONE
, 0},
140 SEC_NO_FLAGS
, BFD_MACH_O_S_ZEROFILL
,
141 BFD_MACH_O_S_ATTR_NONE
, 0},
142 { ".const_data", "__const",
143 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
144 BFD_MACH_O_S_ATTR_NONE
, 0},
145 { ".static_data", "__static_data",
146 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
147 BFD_MACH_O_S_ATTR_NONE
, 0},
148 { ".mod_init_func", "__mod_init_func",
149 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS
,
150 BFD_MACH_O_S_ATTR_NONE
, 2},
151 { ".mod_term_func", "__mod_term_func",
152 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS
,
153 BFD_MACH_O_S_ATTR_NONE
, 2},
155 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
156 BFD_MACH_O_S_ATTR_NONE
, 0},
157 { ".cfstring", "__cfstring",
158 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
159 BFD_MACH_O_S_ATTR_NONE
, 2},
160 { NULL
, NULL
, 0, 0, 0, 0}
163 /* __DWARF Segment. */
164 static const mach_o_section_name_xlat dwarf_section_names_xlat
[] =
166 { ".debug_frame", "__debug_frame",
167 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
168 BFD_MACH_O_S_ATTR_DEBUG
, 0},
169 { ".debug_info", "__debug_info",
170 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
171 BFD_MACH_O_S_ATTR_DEBUG
, 0},
172 { ".debug_abbrev", "__debug_abbrev",
173 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
174 BFD_MACH_O_S_ATTR_DEBUG
, 0},
175 { ".debug_aranges", "__debug_aranges",
176 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
177 BFD_MACH_O_S_ATTR_DEBUG
, 0},
178 { ".debug_macinfo", "__debug_macinfo",
179 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
180 BFD_MACH_O_S_ATTR_DEBUG
, 0},
181 { ".debug_line", "__debug_line",
182 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
183 BFD_MACH_O_S_ATTR_DEBUG
, 0},
184 { ".debug_loc", "__debug_loc",
185 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
186 BFD_MACH_O_S_ATTR_DEBUG
, 0},
187 { ".debug_pubnames", "__debug_pubnames",
188 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
189 BFD_MACH_O_S_ATTR_DEBUG
, 0},
190 { ".debug_pubtypes", "__debug_pubtypes",
191 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
192 BFD_MACH_O_S_ATTR_DEBUG
, 0},
193 { ".debug_str", "__debug_str",
194 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
195 BFD_MACH_O_S_ATTR_DEBUG
, 0},
196 { ".debug_ranges", "__debug_ranges",
197 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
198 BFD_MACH_O_S_ATTR_DEBUG
, 0},
199 { ".debug_macro", "__debug_macro",
200 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
201 BFD_MACH_O_S_ATTR_DEBUG
, 0},
202 { ".debug_gdb_scripts", "__debug_gdb_scri",
203 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
204 BFD_MACH_O_S_ATTR_DEBUG
, 0},
205 { NULL
, NULL
, 0, 0, 0, 0}
208 /* __OBJC Segment. */
209 static const mach_o_section_name_xlat objc_section_names_xlat
[] =
211 { ".objc_class", "__class",
212 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
213 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
214 { ".objc_meta_class", "__meta_class",
215 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
216 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
217 { ".objc_cat_cls_meth", "__cat_cls_meth",
218 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
219 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
220 { ".objc_cat_inst_meth", "__cat_inst_meth",
221 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
222 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
223 { ".objc_protocol", "__protocol",
224 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
225 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
226 { ".objc_string_object", "__string_object",
227 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
228 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
229 { ".objc_cls_meth", "__cls_meth",
230 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
231 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
232 { ".objc_inst_meth", "__inst_meth",
233 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
234 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
235 { ".objc_cls_refs", "__cls_refs",
236 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_LITERAL_POINTERS
,
237 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
238 { ".objc_message_refs", "__message_refs",
239 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_LITERAL_POINTERS
,
240 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
241 { ".objc_symbols", "__symbols",
242 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
243 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
244 { ".objc_category", "__category",
245 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
246 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
247 { ".objc_class_vars", "__class_vars",
248 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
249 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
250 { ".objc_instance_vars", "__instance_vars",
251 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
252 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
253 { ".objc_module_info", "__module_info",
254 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
255 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
256 { ".objc_selector_strs", "__selector_strs",
257 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_CSTRING_LITERALS
,
258 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
259 { ".objc_image_info", "__image_info",
260 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
261 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
262 { ".objc_selector_fixup", "__sel_fixup",
263 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
264 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
266 { ".objc1_class_ext", "__class_ext",
267 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
268 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
269 { ".objc1_property_list", "__property",
270 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
271 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
272 { ".objc1_protocol_ext", "__protocol_ext",
273 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
274 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
275 { NULL
, NULL
, 0, 0, 0, 0}
278 static const mach_o_segment_name_xlat segsec_names_xlat
[] =
280 { "__TEXT", text_section_names_xlat
},
281 { "__DATA", data_section_names_xlat
},
282 { "__DWARF", dwarf_section_names_xlat
},
283 { "__OBJC", objc_section_names_xlat
},
287 static const char dsym_subdir
[] = ".dSYM/Contents/Resources/DWARF";
289 /* For both cases bfd-name => mach-o name and vice versa, the specific target
290 is checked before the generic. This allows a target (e.g. ppc for cstring)
291 to override the generic definition with a more specific one. */
293 /* Fetch the translation from a Mach-O section designation (segment, section)
294 as a bfd short name, if one exists. Otherwise return NULL.
296 Allow the segment and section names to be unterminated 16 byte arrays. */
298 const mach_o_section_name_xlat
*
299 bfd_mach_o_section_data_for_mach_sect (bfd
*abfd
, const char *segname
,
300 const char *sectname
)
302 const struct mach_o_segment_name_xlat
*seg
;
303 const mach_o_section_name_xlat
*sec
;
304 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
306 /* First try any target-specific translations defined... */
307 if (bed
->segsec_names_xlat
)
308 for (seg
= bed
->segsec_names_xlat
; seg
->segname
; seg
++)
309 if (strncmp (seg
->segname
, segname
, BFD_MACH_O_SEGNAME_SIZE
) == 0)
310 for (sec
= seg
->sections
; sec
->mach_o_name
; sec
++)
311 if (strncmp (sec
->mach_o_name
, sectname
,
312 BFD_MACH_O_SECTNAME_SIZE
) == 0)
315 /* ... and then the Mach-O generic ones. */
316 for (seg
= segsec_names_xlat
; seg
->segname
; seg
++)
317 if (strncmp (seg
->segname
, segname
, BFD_MACH_O_SEGNAME_SIZE
) == 0)
318 for (sec
= seg
->sections
; sec
->mach_o_name
; sec
++)
319 if (strncmp (sec
->mach_o_name
, sectname
,
320 BFD_MACH_O_SECTNAME_SIZE
) == 0)
326 /* If the bfd_name for this section is a 'canonical' form for which we
327 know the Mach-O data, return the segment name and the data for the
328 Mach-O equivalent. Otherwise return NULL. */
330 const mach_o_section_name_xlat
*
331 bfd_mach_o_section_data_for_bfd_name (bfd
*abfd
, const char *bfd_name
,
332 const char **segname
)
334 const struct mach_o_segment_name_xlat
*seg
;
335 const mach_o_section_name_xlat
*sec
;
336 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
339 if (bfd_name
[0] != '.')
342 /* First try any target-specific translations defined... */
343 if (bed
->segsec_names_xlat
)
344 for (seg
= bed
->segsec_names_xlat
; seg
->segname
; seg
++)
345 for (sec
= seg
->sections
; sec
->bfd_name
; sec
++)
346 if (strcmp (bfd_name
, sec
->bfd_name
) == 0)
348 *segname
= seg
->segname
;
352 /* ... and then the Mach-O generic ones. */
353 for (seg
= segsec_names_xlat
; seg
->segname
; seg
++)
354 for (sec
= seg
->sections
; sec
->bfd_name
; sec
++)
355 if (strcmp (bfd_name
, sec
->bfd_name
) == 0)
357 *segname
= seg
->segname
;
364 /* Convert Mach-O section name to BFD.
366 Try to use standard/canonical names, for which we have tables including
367 default flag settings - which are returned. Otherwise forge a new name
368 in the form "<segmentname>.<sectionname>" this will be prefixed with
369 LC_SEGMENT. if the segment name does not begin with an underscore.
371 SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL-
372 terminated if the name length is exactly 16 bytes - but must be if the name
373 length is less than 16 characters). */
376 bfd_mach_o_convert_section_name_to_bfd (bfd
*abfd
, const char *segname
,
377 const char *secname
, const char **name
,
380 const mach_o_section_name_xlat
*xlat
;
383 const char *pfx
= "";
386 *flags
= SEC_NO_FLAGS
;
388 /* First search for a canonical name...
389 xlat will be non-null if there is an entry for segname, secname. */
390 xlat
= bfd_mach_o_section_data_for_mach_sect (abfd
, segname
, secname
);
393 len
= strlen (xlat
->bfd_name
);
394 res
= bfd_alloc (abfd
, len
+ 1);
397 memcpy (res
, xlat
->bfd_name
, len
+1);
399 *flags
= xlat
->bfd_flags
;
403 /* ... else we make up a bfd name from the segment concatenated with the
406 len
= 16 + 1 + 16 + 1;
408 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
409 with an underscore. */
410 if (segname
[0] != '_')
412 static const char seg_pfx
[] = "LC_SEGMENT.";
415 len
+= sizeof (seg_pfx
) - 1;
418 res
= bfd_alloc (abfd
, len
);
421 snprintf (res
, len
, "%s%.16s.%.16s", pfx
, segname
, secname
);
425 /* Convert a bfd section name to a Mach-O segment + section name.
427 If the name is a canonical one for which we have a Darwin match
428 return the translation table - which contains defaults for flags,
429 type, attribute and default alignment data.
431 Otherwise, expand the bfd_name (assumed to be in the form
432 "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
434 static const mach_o_section_name_xlat
*
435 bfd_mach_o_convert_section_name_to_mach_o (bfd
*abfd ATTRIBUTE_UNUSED
,
437 bfd_mach_o_section
*section
)
439 const mach_o_section_name_xlat
*xlat
;
440 const char *name
= bfd_get_section_name (abfd
, sect
);
447 memset (section
->segname
, 0, BFD_MACH_O_SEGNAME_SIZE
+ 1);
448 memset (section
->sectname
, 0, BFD_MACH_O_SECTNAME_SIZE
+ 1);
450 /* See if is a canonical name ... */
451 xlat
= bfd_mach_o_section_data_for_bfd_name (abfd
, name
, &segname
);
454 strcpy (section
->segname
, segname
);
455 strcpy (section
->sectname
, xlat
->mach_o_name
);
459 /* .. else we convert our constructed one back to Mach-O.
460 Strip LC_SEGMENT. prefix, if present. */
461 if (strncmp (name
, "LC_SEGMENT.", 11) == 0)
465 dot
= strchr (name
, '.');
468 /* Try to split name into segment and section names. */
469 if (dot
&& dot
!= name
)
472 seclen
= len
- (dot
+ 1 - name
);
474 if (seglen
<= BFD_MACH_O_SEGNAME_SIZE
475 && seclen
<= BFD_MACH_O_SECTNAME_SIZE
)
477 memcpy (section
->segname
, name
, seglen
);
478 section
->segname
[seglen
] = 0;
479 memcpy (section
->sectname
, dot
+ 1, seclen
);
480 section
->sectname
[seclen
] = 0;
485 /* The segment and section names are both missing - don't make them
487 if (dot
&& dot
== name
)
490 /* Just duplicate the name into both segment and section. */
493 memcpy (section
->segname
, name
, len
);
494 section
->segname
[len
] = 0;
495 memcpy (section
->sectname
, name
, len
);
496 section
->sectname
[len
] = 0;
500 /* Return the size of an entry for section SEC.
501 Must be called only for symbol pointer section and symbol stubs
505 bfd_mach_o_section_get_entry_size (bfd
*abfd
, bfd_mach_o_section
*sec
)
507 switch (sec
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
509 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
:
510 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
:
511 return bfd_mach_o_wide_p (abfd
) ? 8 : 4;
512 case BFD_MACH_O_S_SYMBOL_STUBS
:
513 return sec
->reserved2
;
520 /* Return the number of indirect symbols for a section.
521 Must be called only for symbol pointer section and symbol stubs
525 bfd_mach_o_section_get_nbr_indirect (bfd
*abfd
, bfd_mach_o_section
*sec
)
529 elsz
= bfd_mach_o_section_get_entry_size (abfd
, sec
);
533 return sec
->size
/ elsz
;
536 /* Append command CMD to ABFD. Note that header.ncmds is not updated. */
539 bfd_mach_o_append_command (bfd
*abfd
, bfd_mach_o_load_command
*cmd
)
541 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
543 if (mdata
->last_command
!= NULL
)
544 mdata
->last_command
->next
= cmd
;
546 mdata
->first_command
= cmd
;
547 mdata
->last_command
= cmd
;
551 /* Copy any private info we understand from the input symbol
552 to the output symbol. */
555 bfd_mach_o_bfd_copy_private_symbol_data (bfd
*ibfd ATTRIBUTE_UNUSED
,
557 bfd
*obfd ATTRIBUTE_UNUSED
,
560 bfd_mach_o_asymbol
*os
, *is
;
562 os
= (bfd_mach_o_asymbol
*)osymbol
;
563 is
= (bfd_mach_o_asymbol
*)isymbol
;
564 os
->n_type
= is
->n_type
;
565 os
->n_sect
= is
->n_sect
;
566 os
->n_desc
= is
->n_desc
;
567 os
->symbol
.udata
.i
= is
->symbol
.udata
.i
;
572 /* Copy any private info we understand from the input section
573 to the output section. */
576 bfd_mach_o_bfd_copy_private_section_data (bfd
*ibfd
, asection
*isection
,
577 bfd
*obfd
, asection
*osection
)
579 bfd_mach_o_section
*os
= bfd_mach_o_get_mach_o_section (osection
);
580 bfd_mach_o_section
*is
= bfd_mach_o_get_mach_o_section (isection
);
582 if (ibfd
->xvec
->flavour
!= bfd_target_mach_o_flavour
583 || obfd
->xvec
->flavour
!= bfd_target_mach_o_flavour
)
586 BFD_ASSERT (is
!= NULL
&& os
!= NULL
);
588 os
->flags
= is
->flags
;
589 os
->reserved1
= is
->reserved1
;
590 os
->reserved2
= is
->reserved2
;
591 os
->reserved3
= is
->reserved3
;
597 cputype (unsigned long value
)
601 case BFD_MACH_O_CPU_TYPE_VAX
: return "VAX";
602 case BFD_MACH_O_CPU_TYPE_MC680x0
: return "MC68k";
603 case BFD_MACH_O_CPU_TYPE_I386
: return "I386";
604 case BFD_MACH_O_CPU_TYPE_MIPS
: return "MIPS";
605 case BFD_MACH_O_CPU_TYPE_MC98000
: return "MC98k";
606 case BFD_MACH_O_CPU_TYPE_HPPA
: return "HPPA";
607 case BFD_MACH_O_CPU_TYPE_ARM
: return "ARM";
608 case BFD_MACH_O_CPU_TYPE_MC88000
: return "MC88K";
609 case BFD_MACH_O_CPU_TYPE_SPARC
: return "SPARC";
610 case BFD_MACH_O_CPU_TYPE_I860
: return "I860";
611 case BFD_MACH_O_CPU_TYPE_ALPHA
: return "ALPHA";
612 case BFD_MACH_O_CPU_TYPE_POWERPC
: return "PPC";
613 case BFD_MACH_O_CPU_TYPE_POWERPC_64
: return "PPC64";
614 case BFD_MACH_O_CPU_TYPE_X86_64
: return "X86_64";
615 case BFD_MACH_O_CPU_TYPE_ARM64
: return "ARM64";
616 default: return _("<unknown>");
621 cpusubtype (unsigned long cputype
, unsigned long cpusubtype
)
623 static char buffer
[128];
626 switch (cpusubtype
& BFD_MACH_O_CPU_SUBTYPE_MASK
)
630 case BFD_MACH_O_CPU_SUBTYPE_LIB64
:
631 sprintf (buffer
, " (LIB64)"); break;
633 sprintf (buffer
, _("<unknown mask flags>")); break;
636 cpusubtype
&= ~ BFD_MACH_O_CPU_SUBTYPE_MASK
;
640 case BFD_MACH_O_CPU_TYPE_X86_64
:
641 case BFD_MACH_O_CPU_TYPE_I386
:
644 case BFD_MACH_O_CPU_SUBTYPE_X86_ALL
:
645 return strcat (buffer
, " (X86_ALL)");
651 case BFD_MACH_O_CPU_TYPE_ARM
:
654 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL
:
655 return strcat (buffer
, " (ARM_ALL)");
656 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T
:
657 return strcat (buffer
, " (ARM_V4T)");
658 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6
:
659 return strcat (buffer
, " (ARM_V6)");
660 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ
:
661 return strcat (buffer
, " (ARM_V5TEJ)");
662 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE
:
663 return strcat (buffer
, " (ARM_XSCALE)");
664 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7
:
665 return strcat (buffer
, " (ARM_V7)");
671 case BFD_MACH_O_CPU_TYPE_ARM64
:
674 case BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL
:
675 return strcat (buffer
, " (ARM64_ALL)");
676 case BFD_MACH_O_CPU_SUBTYPE_ARM64_V8
:
677 return strcat (buffer
, " (ARM64_V8)");
688 return strcat (buffer
, _(" (<unknown>)"));
694 bfd_mach_o_bfd_print_private_bfd_data (bfd
*abfd
, void *ptr
)
696 FILE * file
= (FILE *) ptr
;
697 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
699 fprintf (file
, _(" MACH-O header:\n"));
700 fprintf (file
, _(" magic: %#lx\n"), (long) mdata
->header
.magic
);
701 fprintf (file
, _(" cputype: %#lx (%s)\n"), (long) mdata
->header
.cputype
,
702 cputype (mdata
->header
.cputype
));
703 fprintf (file
, _(" cpusubtype: %#lx%s\n"), (long) mdata
->header
.cpusubtype
,
704 cpusubtype (mdata
->header
.cputype
, mdata
->header
.cpusubtype
));
705 fprintf (file
, _(" filetype: %#lx\n"), (long) mdata
->header
.filetype
);
706 fprintf (file
, _(" ncmds: %#lx\n"), (long) mdata
->header
.ncmds
);
707 fprintf (file
, _(" sizeocmds: %#lx\n"), (long) mdata
->header
.sizeofcmds
);
708 fprintf (file
, _(" flags: %#lx\n"), (long) mdata
->header
.flags
);
709 fprintf (file
, _(" version: %x\n"), mdata
->header
.version
);
714 /* Copy any private info we understand from the input bfd
715 to the output bfd. */
718 bfd_mach_o_bfd_copy_private_header_data (bfd
*ibfd
, bfd
*obfd
)
720 bfd_mach_o_data_struct
*imdata
;
721 bfd_mach_o_data_struct
*omdata
;
722 bfd_mach_o_load_command
*icmd
;
724 if (bfd_get_flavour (ibfd
) != bfd_target_mach_o_flavour
725 || bfd_get_flavour (obfd
) != bfd_target_mach_o_flavour
)
728 BFD_ASSERT (bfd_mach_o_valid (ibfd
));
729 BFD_ASSERT (bfd_mach_o_valid (obfd
));
731 imdata
= bfd_mach_o_get_data (ibfd
);
732 omdata
= bfd_mach_o_get_data (obfd
);
734 /* Copy header flags. */
735 omdata
->header
.flags
= imdata
->header
.flags
;
737 /* PR 23299. Copy the cputype. */
738 if (imdata
->header
.cputype
!= omdata
->header
.cputype
)
740 if (omdata
->header
.cputype
== 0)
741 omdata
->header
.cputype
= imdata
->header
.cputype
;
742 else if (imdata
->header
.cputype
!= 0)
743 /* Urg - what has happened ? */
744 _bfd_error_handler (_("incompatible cputypes in mach-o files: %ld vs %ld"),
745 (long) imdata
->header
.cputype
,
746 (long) omdata
->header
.cputype
);
749 /* Copy the cpusubtype. */
750 omdata
->header
.cpusubtype
= imdata
->header
.cpusubtype
;
753 for (icmd
= imdata
->first_command
; icmd
!= NULL
; icmd
= icmd
->next
)
755 bfd_mach_o_load_command
*ocmd
;
759 case BFD_MACH_O_LC_LOAD_DYLIB
:
760 case BFD_MACH_O_LC_LOAD_DYLINKER
:
761 case BFD_MACH_O_LC_DYLD_INFO
:
762 /* Command is copied. */
763 ocmd
= bfd_alloc (obfd
, sizeof (bfd_mach_o_load_command
));
767 /* Copy common fields. */
768 ocmd
->type
= icmd
->type
;
769 ocmd
->type_required
= icmd
->type_required
;
771 ocmd
->len
= icmd
->len
;
775 /* Command is not copied. */
782 case BFD_MACH_O_LC_LOAD_DYLIB
:
784 bfd_mach_o_dylib_command
*idy
= &icmd
->command
.dylib
;
785 bfd_mach_o_dylib_command
*ody
= &ocmd
->command
.dylib
;
787 ody
->name_offset
= idy
->name_offset
;
788 ody
->timestamp
= idy
->timestamp
;
789 ody
->current_version
= idy
->current_version
;
790 ody
->compatibility_version
= idy
->compatibility_version
;
791 ody
->name_str
= idy
->name_str
;
795 case BFD_MACH_O_LC_LOAD_DYLINKER
:
797 bfd_mach_o_dylinker_command
*idy
= &icmd
->command
.dylinker
;
798 bfd_mach_o_dylinker_command
*ody
= &ocmd
->command
.dylinker
;
800 ody
->name_offset
= idy
->name_offset
;
801 ody
->name_str
= idy
->name_str
;
805 case BFD_MACH_O_LC_DYLD_INFO
:
807 bfd_mach_o_dyld_info_command
*idy
= &icmd
->command
.dyld_info
;
808 bfd_mach_o_dyld_info_command
*ody
= &ocmd
->command
.dyld_info
;
810 if (bfd_mach_o_read_dyld_content (ibfd
, idy
))
812 ody
->rebase_size
= idy
->rebase_size
;
813 ody
->rebase_content
= idy
->rebase_content
;
815 ody
->bind_size
= idy
->bind_size
;
816 ody
->bind_content
= idy
->bind_content
;
818 ody
->weak_bind_size
= idy
->weak_bind_size
;
819 ody
->weak_bind_content
= idy
->weak_bind_content
;
821 ody
->lazy_bind_size
= idy
->lazy_bind_size
;
822 ody
->lazy_bind_content
= idy
->lazy_bind_content
;
824 ody
->export_size
= idy
->export_size
;
825 ody
->export_content
= idy
->export_content
;
827 /* PR 17512L: file: 730e492d. */
832 ody
->weak_bind_size
=
833 ody
->lazy_bind_size
=
834 ody
->export_size
= 0;
835 ody
->rebase_content
=
837 ody
->weak_bind_content
=
838 ody
->lazy_bind_content
=
839 ody
->export_content
= NULL
;
845 /* That command should be handled. */
849 /* Insert command. */
850 bfd_mach_o_append_command (obfd
, ocmd
);
856 /* This allows us to set up to 32 bits of flags (unless we invent some
857 fiendish scheme to subdivide). For now, we'll just set the file flags
858 without error checking - just overwrite. */
861 bfd_mach_o_bfd_set_private_flags (bfd
*abfd
, flagword flags
)
863 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
868 mdata
->header
.flags
= flags
;
872 /* Count the total number of symbols. */
875 bfd_mach_o_count_symbols (bfd
*abfd
)
877 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
879 if (mdata
->symtab
== NULL
)
881 return mdata
->symtab
->nsyms
;
885 bfd_mach_o_get_symtab_upper_bound (bfd
*abfd
)
887 long nsyms
= bfd_mach_o_count_symbols (abfd
);
889 return ((nsyms
+ 1) * sizeof (asymbol
*));
893 bfd_mach_o_canonicalize_symtab (bfd
*abfd
, asymbol
**alocation
)
895 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
896 long nsyms
= bfd_mach_o_count_symbols (abfd
);
897 bfd_mach_o_symtab_command
*sym
= mdata
->symtab
;
905 /* Do not try to read symbols if there are none. */
910 if (!bfd_mach_o_read_symtab_symbols (abfd
))
913 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
917 BFD_ASSERT (sym
->symbols
!= NULL
);
919 for (j
= 0; j
< sym
->nsyms
; j
++)
920 alocation
[j
] = &sym
->symbols
[j
].symbol
;
927 /* Create synthetic symbols for indirect symbols. */
930 bfd_mach_o_get_synthetic_symtab (bfd
*abfd
,
931 long symcount ATTRIBUTE_UNUSED
,
932 asymbol
**syms ATTRIBUTE_UNUSED
,
933 long dynsymcount ATTRIBUTE_UNUSED
,
934 asymbol
**dynsyms ATTRIBUTE_UNUSED
,
937 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
938 bfd_mach_o_dysymtab_command
*dysymtab
= mdata
->dysymtab
;
939 bfd_mach_o_symtab_command
*symtab
= mdata
->symtab
;
943 unsigned long count
, i
, j
, n
;
947 const char stub
[] = "$stub";
951 /* Stop now if no symbols or no indirect symbols. */
952 if (dysymtab
== NULL
|| dysymtab
->nindirectsyms
== 0
953 || symtab
== NULL
|| symtab
->symbols
== NULL
)
956 /* We need to allocate a bfd symbol for every indirect symbol and to
957 allocate the memory for its name. */
958 count
= dysymtab
->nindirectsyms
;
959 size
= count
* sizeof (asymbol
) + 1;
961 for (j
= 0; j
< count
; j
++)
964 unsigned int isym
= dysymtab
->indirect_syms
[j
];
966 /* Some indirect symbols are anonymous. */
967 if (isym
< symtab
->nsyms
&& (strng
= symtab
->symbols
[isym
].symbol
.name
))
968 /* PR 17512: file: f5b8eeba. */
969 size
+= strnlen (strng
, symtab
->strsize
- (strng
- symtab
->strtab
)) + sizeof (stub
);
972 s_start
= bfd_malloc (size
);
973 s
= *ret
= (asymbol
*) s_start
;
976 names
= (char *) (s
+ count
);
979 s_end
= s_start
+ size
;
982 for (i
= 0; i
< mdata
->nsects
; i
++)
984 bfd_mach_o_section
*sec
= mdata
->sections
[i
];
985 unsigned int first
, last
;
989 switch (sec
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
991 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
:
992 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
:
993 case BFD_MACH_O_S_SYMBOL_STUBS
:
994 /* Only these sections have indirect symbols. */
995 first
= sec
->reserved1
;
996 last
= first
+ bfd_mach_o_section_get_nbr_indirect (abfd
, sec
);
998 entry_size
= bfd_mach_o_section_get_entry_size (abfd
, sec
);
1000 /* PR 17512: file: 08e15eec. */
1001 if (first
>= count
|| last
>= count
|| first
> last
)
1004 for (j
= first
; j
< last
; j
++)
1006 unsigned int isym
= dysymtab
->indirect_syms
[j
];
1008 /* PR 17512: file: 04d64d9b. */
1009 if (((char *) s
) + sizeof (* s
) > s_end
)
1012 s
->flags
= BSF_GLOBAL
| BSF_SYNTHETIC
;
1013 s
->section
= sec
->bfdsection
;
1014 s
->value
= addr
- sec
->addr
;
1017 if (isym
< symtab
->nsyms
1018 && symtab
->symbols
[isym
].symbol
.name
)
1020 const char *sym
= symtab
->symbols
[isym
].symbol
.name
;
1025 /* PR 17512: file: 47dfd4d2. */
1026 if (names
+ len
>= s_end
)
1028 memcpy (names
, sym
, len
);
1030 /* PR 17512: file: 18f340a4. */
1031 if (names
+ sizeof (stub
) >= s_end
)
1033 memcpy (names
, stub
, sizeof (stub
));
1034 names
+= sizeof (stub
);
1058 bfd_mach_o_get_symbol_info (bfd
*abfd ATTRIBUTE_UNUSED
,
1062 bfd_symbol_info (symbol
, ret
);
1066 bfd_mach_o_print_symbol (bfd
*abfd
,
1069 bfd_print_symbol_type how
)
1071 FILE *file
= (FILE *) afile
;
1073 bfd_mach_o_asymbol
*asym
= (bfd_mach_o_asymbol
*)symbol
;
1077 case bfd_print_symbol_name
:
1078 fprintf (file
, "%s", symbol
->name
);
1081 bfd_print_symbol_vandf (abfd
, (void *) file
, symbol
);
1082 if (asym
->n_type
& BFD_MACH_O_N_STAB
)
1083 name
= bfd_get_stab_name (asym
->n_type
);
1085 switch (asym
->n_type
& BFD_MACH_O_N_TYPE
)
1087 case BFD_MACH_O_N_UNDF
:
1088 if (symbol
->value
== 0)
1093 case BFD_MACH_O_N_ABS
:
1096 case BFD_MACH_O_N_INDR
:
1099 case BFD_MACH_O_N_PBUD
:
1102 case BFD_MACH_O_N_SECT
:
1111 fprintf (file
, " %02x %-6s %02x %04x",
1112 asym
->n_type
, name
, asym
->n_sect
, asym
->n_desc
);
1113 if ((asym
->n_type
& BFD_MACH_O_N_STAB
) == 0
1114 && (asym
->n_type
& BFD_MACH_O_N_TYPE
) == BFD_MACH_O_N_SECT
)
1115 fprintf (file
, " [%s]", symbol
->section
->name
);
1116 fprintf (file
, " %s", symbol
->name
);
1121 bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype
,
1122 bfd_mach_o_cpu_subtype msubtype
,
1123 enum bfd_architecture
*type
,
1124 unsigned long *subtype
)
1126 *subtype
= bfd_arch_unknown
;
1130 case BFD_MACH_O_CPU_TYPE_VAX
:
1131 *type
= bfd_arch_vax
;
1133 case BFD_MACH_O_CPU_TYPE_MC680x0
:
1134 *type
= bfd_arch_m68k
;
1136 case BFD_MACH_O_CPU_TYPE_I386
:
1137 *type
= bfd_arch_i386
;
1138 *subtype
= bfd_mach_i386_i386
;
1140 case BFD_MACH_O_CPU_TYPE_X86_64
:
1141 *type
= bfd_arch_i386
;
1142 *subtype
= bfd_mach_x86_64
;
1144 case BFD_MACH_O_CPU_TYPE_MIPS
:
1145 *type
= bfd_arch_mips
;
1147 case BFD_MACH_O_CPU_TYPE_MC98000
:
1148 *type
= bfd_arch_m98k
;
1150 case BFD_MACH_O_CPU_TYPE_HPPA
:
1151 *type
= bfd_arch_hppa
;
1153 case BFD_MACH_O_CPU_TYPE_ARM
:
1154 *type
= bfd_arch_arm
;
1157 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T
:
1158 *subtype
= bfd_mach_arm_4T
;
1160 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6
:
1161 *subtype
= bfd_mach_arm_4T
; /* Best fit ? */
1163 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ
:
1164 *subtype
= bfd_mach_arm_5TE
;
1166 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE
:
1167 *subtype
= bfd_mach_arm_XScale
;
1169 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7
:
1170 *subtype
= bfd_mach_arm_5TE
; /* Best fit ? */
1172 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL
:
1177 case BFD_MACH_O_CPU_TYPE_SPARC
:
1178 *type
= bfd_arch_sparc
;
1179 *subtype
= bfd_mach_sparc
;
1181 case BFD_MACH_O_CPU_TYPE_ALPHA
:
1182 *type
= bfd_arch_alpha
;
1184 case BFD_MACH_O_CPU_TYPE_POWERPC
:
1185 *type
= bfd_arch_powerpc
;
1186 *subtype
= bfd_mach_ppc
;
1188 case BFD_MACH_O_CPU_TYPE_POWERPC_64
:
1189 *type
= bfd_arch_powerpc
;
1190 *subtype
= bfd_mach_ppc64
;
1192 case BFD_MACH_O_CPU_TYPE_ARM64
:
1193 *type
= bfd_arch_aarch64
;
1194 *subtype
= bfd_mach_aarch64
;
1197 *type
= bfd_arch_unknown
;
1202 /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1203 number of bytes written or -1 in case of error. */
1206 bfd_mach_o_pad4 (bfd
*abfd
, unsigned int len
)
1210 char pad
[4] = {0,0,0,0};
1211 unsigned int padlen
= 4 - (len
% 4);
1213 if (bfd_bwrite (pad
, padlen
, abfd
) != padlen
)
1222 /* Likewise, but for a command. */
1225 bfd_mach_o_pad_command (bfd
*abfd
, unsigned int len
)
1227 unsigned int align
= bfd_mach_o_wide_p (abfd
) ? 8 : 4;
1229 if (len
% align
!= 0)
1232 unsigned int padlen
= align
- (len
% align
);
1234 if (bfd_bwrite (pad
, padlen
, abfd
) != padlen
)
1244 bfd_mach_o_write_header (bfd
*abfd
, bfd_mach_o_header
*header
)
1246 struct mach_o_header_external raw
;
1249 size
= mach_o_wide_p (header
) ?
1250 BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
1252 bfd_h_put_32 (abfd
, header
->magic
, raw
.magic
);
1253 bfd_h_put_32 (abfd
, header
->cputype
, raw
.cputype
);
1254 bfd_h_put_32 (abfd
, header
->cpusubtype
, raw
.cpusubtype
);
1255 bfd_h_put_32 (abfd
, header
->filetype
, raw
.filetype
);
1256 bfd_h_put_32 (abfd
, header
->ncmds
, raw
.ncmds
);
1257 bfd_h_put_32 (abfd
, header
->sizeofcmds
, raw
.sizeofcmds
);
1258 bfd_h_put_32 (abfd
, header
->flags
, raw
.flags
);
1260 if (mach_o_wide_p (header
))
1261 bfd_h_put_32 (abfd
, header
->reserved
, raw
.reserved
);
1263 if (bfd_seek (abfd
, 0, SEEK_SET
) != 0
1264 || bfd_bwrite (&raw
, size
, abfd
) != size
)
1271 bfd_mach_o_write_thread (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1273 bfd_mach_o_thread_command
*cmd
= &command
->command
.thread
;
1275 struct mach_o_thread_command_external raw
;
1276 unsigned int offset
;
1278 BFD_ASSERT ((command
->type
== BFD_MACH_O_LC_THREAD
)
1279 || (command
->type
== BFD_MACH_O_LC_UNIXTHREAD
));
1281 offset
= BFD_MACH_O_LC_SIZE
;
1282 for (i
= 0; i
< cmd
->nflavours
; i
++)
1284 BFD_ASSERT ((cmd
->flavours
[i
].size
% 4) == 0);
1285 BFD_ASSERT (cmd
->flavours
[i
].offset
==
1286 (command
->offset
+ offset
+ BFD_MACH_O_LC_SIZE
));
1288 bfd_h_put_32 (abfd
, cmd
->flavours
[i
].flavour
, raw
.flavour
);
1289 bfd_h_put_32 (abfd
, (cmd
->flavours
[i
].size
/ 4), raw
.count
);
1291 if (bfd_seek (abfd
, command
->offset
+ offset
, SEEK_SET
) != 0
1292 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1295 offset
+= cmd
->flavours
[i
].size
+ sizeof (raw
);
1302 bfd_mach_o_write_dylinker (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1304 bfd_mach_o_dylinker_command
*cmd
= &command
->command
.dylinker
;
1305 struct mach_o_str_command_external raw
;
1306 unsigned int namelen
;
1308 bfd_h_put_32 (abfd
, cmd
->name_offset
, raw
.str
);
1310 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1311 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1314 namelen
= strlen (cmd
->name_str
) + 1;
1315 if (bfd_bwrite (cmd
->name_str
, namelen
, abfd
) != namelen
)
1318 if (bfd_mach_o_pad_command (abfd
, namelen
) < 0)
1325 bfd_mach_o_write_dylib (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1327 bfd_mach_o_dylib_command
*cmd
= &command
->command
.dylib
;
1328 struct mach_o_dylib_command_external raw
;
1329 unsigned int namelen
;
1331 bfd_h_put_32 (abfd
, cmd
->name_offset
, raw
.name
);
1332 bfd_h_put_32 (abfd
, cmd
->timestamp
, raw
.timestamp
);
1333 bfd_h_put_32 (abfd
, cmd
->current_version
, raw
.current_version
);
1334 bfd_h_put_32 (abfd
, cmd
->compatibility_version
, raw
.compatibility_version
);
1336 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1337 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1340 namelen
= strlen (cmd
->name_str
) + 1;
1341 if (bfd_bwrite (cmd
->name_str
, namelen
, abfd
) != namelen
)
1344 if (bfd_mach_o_pad_command (abfd
, namelen
) < 0)
1351 bfd_mach_o_write_main (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1353 bfd_mach_o_main_command
*cmd
= &command
->command
.main
;
1354 struct mach_o_entry_point_command_external raw
;
1356 bfd_h_put_64 (abfd
, cmd
->entryoff
, raw
.entryoff
);
1357 bfd_h_put_64 (abfd
, cmd
->stacksize
, raw
.stacksize
);
1359 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1360 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1367 bfd_mach_o_write_dyld_info (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1369 bfd_mach_o_dyld_info_command
*cmd
= &command
->command
.dyld_info
;
1370 struct mach_o_dyld_info_command_external raw
;
1372 bfd_h_put_32 (abfd
, cmd
->rebase_off
, raw
.rebase_off
);
1373 bfd_h_put_32 (abfd
, cmd
->rebase_size
, raw
.rebase_size
);
1374 bfd_h_put_32 (abfd
, cmd
->bind_off
, raw
.bind_off
);
1375 bfd_h_put_32 (abfd
, cmd
->bind_size
, raw
.bind_size
);
1376 bfd_h_put_32 (abfd
, cmd
->weak_bind_off
, raw
.weak_bind_off
);
1377 bfd_h_put_32 (abfd
, cmd
->weak_bind_size
, raw
.weak_bind_size
);
1378 bfd_h_put_32 (abfd
, cmd
->lazy_bind_off
, raw
.lazy_bind_off
);
1379 bfd_h_put_32 (abfd
, cmd
->lazy_bind_size
, raw
.lazy_bind_size
);
1380 bfd_h_put_32 (abfd
, cmd
->export_off
, raw
.export_off
);
1381 bfd_h_put_32 (abfd
, cmd
->export_size
, raw
.export_size
);
1383 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1384 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1387 if (cmd
->rebase_size
!= 0)
1388 if (bfd_seek (abfd
, cmd
->rebase_off
, SEEK_SET
) != 0
1389 || (bfd_bwrite (cmd
->rebase_content
, cmd
->rebase_size
, abfd
) !=
1393 if (cmd
->bind_size
!= 0)
1394 if (bfd_seek (abfd
, cmd
->bind_off
, SEEK_SET
) != 0
1395 || (bfd_bwrite (cmd
->bind_content
, cmd
->bind_size
, abfd
) !=
1399 if (cmd
->weak_bind_size
!= 0)
1400 if (bfd_seek (abfd
, cmd
->weak_bind_off
, SEEK_SET
) != 0
1401 || (bfd_bwrite (cmd
->weak_bind_content
, cmd
->weak_bind_size
, abfd
) !=
1402 cmd
->weak_bind_size
))
1405 if (cmd
->lazy_bind_size
!= 0)
1406 if (bfd_seek (abfd
, cmd
->lazy_bind_off
, SEEK_SET
) != 0
1407 || (bfd_bwrite (cmd
->lazy_bind_content
, cmd
->lazy_bind_size
, abfd
) !=
1408 cmd
->lazy_bind_size
))
1411 if (cmd
->export_size
!= 0)
1412 if (bfd_seek (abfd
, cmd
->export_off
, SEEK_SET
) != 0
1413 || (bfd_bwrite (cmd
->export_content
, cmd
->export_size
, abfd
) !=
1420 #if GCC_VERSION >= 4003
1421 # pragma GCC diagnostic push
1422 # pragma GCC diagnostic ignored "-Wtype-limits"
1425 bfd_mach_o_get_reloc_upper_bound (bfd
*abfd ATTRIBUTE_UNUSED
,
1428 if (asect
->reloc_count
>= LONG_MAX
/ sizeof (arelent
*))
1430 bfd_set_error (bfd_error_file_too_big
);
1433 return (asect
->reloc_count
+ 1) * sizeof (arelent
*);
1435 #if GCC_VERSION >= 4003
1436 # pragma GCC diagnostic pop
1439 /* In addition to the need to byte-swap the symbol number, the bit positions
1440 of the fields in the relocation information vary per target endian-ness. */
1443 bfd_mach_o_swap_in_non_scattered_reloc (bfd
*abfd
, bfd_mach_o_reloc_info
*rel
,
1444 unsigned char *fields
)
1446 unsigned char info
= fields
[3];
1448 if (bfd_big_endian (abfd
))
1450 rel
->r_value
= (fields
[0] << 16) | (fields
[1] << 8) | fields
[2];
1451 rel
->r_type
= (info
>> BFD_MACH_O_BE_TYPE_SHIFT
) & BFD_MACH_O_TYPE_MASK
;
1452 rel
->r_pcrel
= (info
& BFD_MACH_O_BE_PCREL
) ? 1 : 0;
1453 rel
->r_length
= (info
>> BFD_MACH_O_BE_LENGTH_SHIFT
)
1454 & BFD_MACH_O_LENGTH_MASK
;
1455 rel
->r_extern
= (info
& BFD_MACH_O_BE_EXTERN
) ? 1 : 0;
1459 rel
->r_value
= (fields
[2] << 16) | (fields
[1] << 8) | fields
[0];
1460 rel
->r_type
= (info
>> BFD_MACH_O_LE_TYPE_SHIFT
) & BFD_MACH_O_TYPE_MASK
;
1461 rel
->r_pcrel
= (info
& BFD_MACH_O_LE_PCREL
) ? 1 : 0;
1462 rel
->r_length
= (info
>> BFD_MACH_O_LE_LENGTH_SHIFT
)
1463 & BFD_MACH_O_LENGTH_MASK
;
1464 rel
->r_extern
= (info
& BFD_MACH_O_LE_EXTERN
) ? 1 : 0;
1468 /* Set syms_ptr_ptr and addend of RES. */
1471 bfd_mach_o_canonicalize_non_scattered_reloc (bfd
*abfd
,
1472 bfd_mach_o_reloc_info
*reloc
,
1473 arelent
*res
, asymbol
**syms
)
1475 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1479 /* Non-scattered relocation. */
1480 reloc
->r_scattered
= 0;
1483 num
= reloc
->r_value
;
1485 if (reloc
->r_extern
)
1487 /* PR 17512: file: 8396-1185-0.004. */
1488 if (num
>= (unsigned) bfd_mach_o_count_symbols (abfd
))
1489 sym
= bfd_und_section_ptr
->symbol_ptr_ptr
;
1490 else if (syms
== NULL
)
1491 sym
= bfd_und_section_ptr
->symbol_ptr_ptr
;
1493 /* An external symbol number. */
1496 else if (num
== 0x00ffffff || num
== 0)
1498 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1499 is generic code, we don't know wether this is really a PAIR.
1500 This value is almost certainly not a valid section number, hence
1501 this specific case to avoid an assertion failure.
1502 Target specific swap_reloc_in routine should adjust that. */
1503 sym
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
1507 /* PR 17512: file: 006-2964-0.004. */
1508 if (num
> mdata
->nsects
)
1511 /* A section number. */
1512 sym
= mdata
->sections
[num
- 1]->bfdsection
->symbol_ptr_ptr
;
1513 /* For a symbol defined in section S, the addend (stored in the
1514 binary) contains the address of the section. To comply with
1515 bfd convention, subtract the section address.
1516 Use the address from the header, so that the user can modify
1517 the vma of the section. */
1518 res
->addend
= -mdata
->sections
[num
- 1]->addr
;
1521 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1522 in the lower 16bits of the address value. So we have to find the
1523 'symbol' from the preceding reloc. We do this even though the
1524 section symbol is probably not needed here, because NULL symbol
1525 values cause an assert in generic BFD code. This must be done in
1526 the PPC swap_reloc_in routine. */
1527 res
->sym_ptr_ptr
= sym
;
1532 /* Do most of the work for canonicalize_relocs on RAW: create internal
1533 representation RELOC and set most fields of RES using symbol table SYMS.
1534 Each target still has to set the howto of RES and possibly adjust other
1536 Previously the Mach-O hook point was simply swap_in, but some targets
1537 (like arm64) don't follow the generic rules (symnum is a value for the
1538 non-scattered relocation ADDEND). */
1541 bfd_mach_o_pre_canonicalize_one_reloc (bfd
*abfd
,
1542 struct mach_o_reloc_info_external
*raw
,
1543 bfd_mach_o_reloc_info
*reloc
,
1544 arelent
*res
, asymbol
**syms
)
1546 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1549 addr
= bfd_get_32 (abfd
, raw
->r_address
);
1550 res
->sym_ptr_ptr
= NULL
;
1553 if (addr
& BFD_MACH_O_SR_SCATTERED
)
1556 bfd_vma symnum
= bfd_get_32 (abfd
, raw
->r_symbolnum
);
1558 /* Scattered relocation, can't be extern. */
1559 reloc
->r_scattered
= 1;
1560 reloc
->r_extern
= 0;
1562 /* Extract section and offset from r_value (symnum). */
1563 reloc
->r_value
= symnum
;
1564 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1565 end of the data for the section (e.g. in a calculation of section
1566 data length). At present, the symbol will end up associated with
1567 the following section or, if it falls within alignment padding, as
1568 null - which will assert later. */
1569 for (j
= 0; j
< mdata
->nsects
; j
++)
1571 bfd_mach_o_section
*sect
= mdata
->sections
[j
];
1572 if (symnum
>= sect
->addr
&& symnum
< sect
->addr
+ sect
->size
)
1574 res
->sym_ptr_ptr
= sect
->bfdsection
->symbol_ptr_ptr
;
1575 res
->addend
= symnum
- sect
->addr
;
1580 /* Extract the info and address fields from r_address. */
1581 reloc
->r_type
= BFD_MACH_O_GET_SR_TYPE (addr
);
1582 reloc
->r_length
= BFD_MACH_O_GET_SR_LENGTH (addr
);
1583 reloc
->r_pcrel
= addr
& BFD_MACH_O_SR_PCREL
;
1584 reloc
->r_address
= BFD_MACH_O_GET_SR_TYPE (addr
);
1585 res
->address
= BFD_MACH_O_GET_SR_ADDRESS (addr
);
1589 /* Non-scattered relocation. */
1590 reloc
->r_scattered
= 0;
1591 reloc
->r_address
= addr
;
1592 res
->address
= addr
;
1594 /* The value and info fields have to be extracted dependent on target
1596 bfd_mach_o_swap_in_non_scattered_reloc (abfd
, reloc
, raw
->r_symbolnum
);
1598 if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd
, reloc
,
1603 /* We have set up a reloc with all the information present, so the swapper
1604 can modify address, value and addend fields, if necessary, to convey
1605 information in the generic BFD reloc that is mach-o specific. */
1611 bfd_mach_o_canonicalize_relocs (bfd
*abfd
, unsigned long filepos
,
1612 unsigned long count
,
1613 arelent
*res
, asymbol
**syms
)
1615 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
1617 struct mach_o_reloc_info_external
*native_relocs
;
1618 bfd_size_type native_size
;
1620 /* Allocate and read relocs. */
1621 native_size
= count
* BFD_MACH_O_RELENT_SIZE
;
1623 /* PR 17512: file: 09477b57. */
1624 if (native_size
< count
)
1628 (struct mach_o_reloc_info_external
*) bfd_malloc (native_size
);
1629 if (native_relocs
== NULL
)
1632 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0
1633 || bfd_bread (native_relocs
, native_size
, abfd
) != native_size
)
1636 for (i
= 0; i
< count
; i
++)
1638 if (!(*bed
->_bfd_mach_o_canonicalize_one_reloc
)(abfd
, &native_relocs
[i
],
1639 &res
[i
], syms
, res
))
1642 free (native_relocs
);
1645 free (native_relocs
);
1650 bfd_mach_o_canonicalize_reloc (bfd
*abfd
, asection
*asect
,
1651 arelent
**rels
, asymbol
**syms
)
1653 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
1657 if (asect
->reloc_count
== 0)
1660 /* No need to go further if we don't know how to read relocs. */
1661 if (bed
->_bfd_mach_o_canonicalize_one_reloc
== NULL
)
1664 if (asect
->relocation
== NULL
)
1666 if (asect
->reloc_count
* sizeof (arelent
) < asect
->reloc_count
)
1668 res
= bfd_malloc (asect
->reloc_count
* sizeof (arelent
));
1672 if (bfd_mach_o_canonicalize_relocs (abfd
, asect
->rel_filepos
,
1673 asect
->reloc_count
, res
, syms
) < 0)
1678 asect
->relocation
= res
;
1681 res
= asect
->relocation
;
1682 for (i
= 0; i
< asect
->reloc_count
; i
++)
1690 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd
*abfd
)
1692 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1694 if (mdata
->dysymtab
== NULL
)
1696 return (mdata
->dysymtab
->nextrel
+ mdata
->dysymtab
->nlocrel
+ 1)
1697 * sizeof (arelent
*);
1701 bfd_mach_o_canonicalize_dynamic_reloc (bfd
*abfd
, arelent
**rels
,
1702 struct bfd_symbol
**syms
)
1704 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1705 bfd_mach_o_dysymtab_command
*dysymtab
= mdata
->dysymtab
;
1706 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
1710 if (dysymtab
== NULL
)
1712 if (dysymtab
->nextrel
== 0 && dysymtab
->nlocrel
== 0)
1715 /* No need to go further if we don't know how to read relocs. */
1716 if (bed
->_bfd_mach_o_canonicalize_one_reloc
== NULL
)
1719 if (mdata
->dyn_reloc_cache
== NULL
)
1721 if ((dysymtab
->nextrel
+ dysymtab
->nlocrel
) * sizeof (arelent
)
1722 < (dysymtab
->nextrel
+ dysymtab
->nlocrel
))
1725 res
= bfd_malloc ((dysymtab
->nextrel
+ dysymtab
->nlocrel
)
1726 * sizeof (arelent
));
1730 if (bfd_mach_o_canonicalize_relocs (abfd
, dysymtab
->extreloff
,
1731 dysymtab
->nextrel
, res
, syms
) < 0)
1737 if (bfd_mach_o_canonicalize_relocs (abfd
, dysymtab
->locreloff
,
1739 res
+ dysymtab
->nextrel
, syms
) < 0)
1745 mdata
->dyn_reloc_cache
= res
;
1748 res
= mdata
->dyn_reloc_cache
;
1749 for (i
= 0; i
< dysymtab
->nextrel
+ dysymtab
->nlocrel
; i
++)
1755 /* In addition to the need to byte-swap the symbol number, the bit positions
1756 of the fields in the relocation information vary per target endian-ness. */
1759 bfd_mach_o_swap_out_non_scattered_reloc (bfd
*abfd
, unsigned char *fields
,
1760 bfd_mach_o_reloc_info
*rel
)
1762 unsigned char info
= 0;
1764 BFD_ASSERT (rel
->r_type
<= 15);
1765 BFD_ASSERT (rel
->r_length
<= 3);
1767 if (bfd_big_endian (abfd
))
1769 fields
[0] = (rel
->r_value
>> 16) & 0xff;
1770 fields
[1] = (rel
->r_value
>> 8) & 0xff;
1771 fields
[2] = rel
->r_value
& 0xff;
1772 info
|= rel
->r_type
<< BFD_MACH_O_BE_TYPE_SHIFT
;
1773 info
|= rel
->r_pcrel
? BFD_MACH_O_BE_PCREL
: 0;
1774 info
|= rel
->r_length
<< BFD_MACH_O_BE_LENGTH_SHIFT
;
1775 info
|= rel
->r_extern
? BFD_MACH_O_BE_EXTERN
: 0;
1779 fields
[2] = (rel
->r_value
>> 16) & 0xff;
1780 fields
[1] = (rel
->r_value
>> 8) & 0xff;
1781 fields
[0] = rel
->r_value
& 0xff;
1782 info
|= rel
->r_type
<< BFD_MACH_O_LE_TYPE_SHIFT
;
1783 info
|= rel
->r_pcrel
? BFD_MACH_O_LE_PCREL
: 0;
1784 info
|= rel
->r_length
<< BFD_MACH_O_LE_LENGTH_SHIFT
;
1785 info
|= rel
->r_extern
? BFD_MACH_O_LE_EXTERN
: 0;
1791 bfd_mach_o_write_relocs (bfd
*abfd
, bfd_mach_o_section
*section
)
1796 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
1798 sec
= section
->bfdsection
;
1799 if (sec
->reloc_count
== 0)
1802 if (bed
->_bfd_mach_o_swap_reloc_out
== NULL
)
1805 if (bfd_seek (abfd
, section
->reloff
, SEEK_SET
) != 0)
1808 /* Convert and write. */
1809 entries
= section
->bfdsection
->orelocation
;
1810 for (i
= 0; i
< section
->nreloc
; i
++)
1812 arelent
*rel
= entries
[i
];
1813 struct mach_o_reloc_info_external raw
;
1814 bfd_mach_o_reloc_info info
, *pinfo
= &info
;
1816 /* Convert relocation to an intermediate representation. */
1817 if (!(*bed
->_bfd_mach_o_swap_reloc_out
) (rel
, pinfo
))
1820 /* Lower the relocation info. */
1821 if (pinfo
->r_scattered
)
1825 v
= BFD_MACH_O_SR_SCATTERED
1826 | (pinfo
->r_pcrel
? BFD_MACH_O_SR_PCREL
: 0)
1827 | BFD_MACH_O_SET_SR_LENGTH (pinfo
->r_length
)
1828 | BFD_MACH_O_SET_SR_TYPE (pinfo
->r_type
)
1829 | BFD_MACH_O_SET_SR_ADDRESS (pinfo
->r_address
);
1830 /* Note: scattered relocs have field in reverse order... */
1831 bfd_put_32 (abfd
, v
, raw
.r_address
);
1832 bfd_put_32 (abfd
, pinfo
->r_value
, raw
.r_symbolnum
);
1836 bfd_put_32 (abfd
, pinfo
->r_address
, raw
.r_address
);
1837 bfd_mach_o_swap_out_non_scattered_reloc (abfd
, raw
.r_symbolnum
,
1841 if (bfd_bwrite (&raw
, BFD_MACH_O_RELENT_SIZE
, abfd
)
1842 != BFD_MACH_O_RELENT_SIZE
)
1849 bfd_mach_o_write_section_32 (bfd
*abfd
, bfd_mach_o_section
*section
)
1851 struct mach_o_section_32_external raw
;
1853 memcpy (raw
.sectname
, section
->sectname
, 16);
1854 memcpy (raw
.segname
, section
->segname
, 16);
1855 bfd_h_put_32 (abfd
, section
->addr
, raw
.addr
);
1856 bfd_h_put_32 (abfd
, section
->size
, raw
.size
);
1857 bfd_h_put_32 (abfd
, section
->offset
, raw
.offset
);
1858 bfd_h_put_32 (abfd
, section
->align
, raw
.align
);
1859 bfd_h_put_32 (abfd
, section
->reloff
, raw
.reloff
);
1860 bfd_h_put_32 (abfd
, section
->nreloc
, raw
.nreloc
);
1861 bfd_h_put_32 (abfd
, section
->flags
, raw
.flags
);
1862 bfd_h_put_32 (abfd
, section
->reserved1
, raw
.reserved1
);
1863 bfd_h_put_32 (abfd
, section
->reserved2
, raw
.reserved2
);
1865 if (bfd_bwrite (&raw
, BFD_MACH_O_SECTION_SIZE
, abfd
)
1866 != BFD_MACH_O_SECTION_SIZE
)
1873 bfd_mach_o_write_section_64 (bfd
*abfd
, bfd_mach_o_section
*section
)
1875 struct mach_o_section_64_external raw
;
1877 memcpy (raw
.sectname
, section
->sectname
, 16);
1878 memcpy (raw
.segname
, section
->segname
, 16);
1879 bfd_h_put_64 (abfd
, section
->addr
, raw
.addr
);
1880 bfd_h_put_64 (abfd
, section
->size
, raw
.size
);
1881 bfd_h_put_32 (abfd
, section
->offset
, raw
.offset
);
1882 bfd_h_put_32 (abfd
, section
->align
, raw
.align
);
1883 bfd_h_put_32 (abfd
, section
->reloff
, raw
.reloff
);
1884 bfd_h_put_32 (abfd
, section
->nreloc
, raw
.nreloc
);
1885 bfd_h_put_32 (abfd
, section
->flags
, raw
.flags
);
1886 bfd_h_put_32 (abfd
, section
->reserved1
, raw
.reserved1
);
1887 bfd_h_put_32 (abfd
, section
->reserved2
, raw
.reserved2
);
1888 bfd_h_put_32 (abfd
, section
->reserved3
, raw
.reserved3
);
1890 if (bfd_bwrite (&raw
, BFD_MACH_O_SECTION_64_SIZE
, abfd
)
1891 != BFD_MACH_O_SECTION_64_SIZE
)
1898 bfd_mach_o_write_segment_32 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1900 struct mach_o_segment_command_32_external raw
;
1901 bfd_mach_o_segment_command
*seg
= &command
->command
.segment
;
1902 bfd_mach_o_section
*sec
;
1904 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SEGMENT
);
1906 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
1907 if (!bfd_mach_o_write_relocs (abfd
, sec
))
1910 memcpy (raw
.segname
, seg
->segname
, 16);
1911 bfd_h_put_32 (abfd
, seg
->vmaddr
, raw
.vmaddr
);
1912 bfd_h_put_32 (abfd
, seg
->vmsize
, raw
.vmsize
);
1913 bfd_h_put_32 (abfd
, seg
->fileoff
, raw
.fileoff
);
1914 bfd_h_put_32 (abfd
, seg
->filesize
, raw
.filesize
);
1915 bfd_h_put_32 (abfd
, seg
->maxprot
, raw
.maxprot
);
1916 bfd_h_put_32 (abfd
, seg
->initprot
, raw
.initprot
);
1917 bfd_h_put_32 (abfd
, seg
->nsects
, raw
.nsects
);
1918 bfd_h_put_32 (abfd
, seg
->flags
, raw
.flags
);
1920 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1921 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1924 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
1925 if (!bfd_mach_o_write_section_32 (abfd
, sec
))
1932 bfd_mach_o_write_segment_64 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1934 struct mach_o_segment_command_64_external raw
;
1935 bfd_mach_o_segment_command
*seg
= &command
->command
.segment
;
1936 bfd_mach_o_section
*sec
;
1938 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SEGMENT_64
);
1940 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
1941 if (!bfd_mach_o_write_relocs (abfd
, sec
))
1944 memcpy (raw
.segname
, seg
->segname
, 16);
1945 bfd_h_put_64 (abfd
, seg
->vmaddr
, raw
.vmaddr
);
1946 bfd_h_put_64 (abfd
, seg
->vmsize
, raw
.vmsize
);
1947 bfd_h_put_64 (abfd
, seg
->fileoff
, raw
.fileoff
);
1948 bfd_h_put_64 (abfd
, seg
->filesize
, raw
.filesize
);
1949 bfd_h_put_32 (abfd
, seg
->maxprot
, raw
.maxprot
);
1950 bfd_h_put_32 (abfd
, seg
->initprot
, raw
.initprot
);
1951 bfd_h_put_32 (abfd
, seg
->nsects
, raw
.nsects
);
1952 bfd_h_put_32 (abfd
, seg
->flags
, raw
.flags
);
1954 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1955 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1958 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
1959 if (!bfd_mach_o_write_section_64 (abfd
, sec
))
1966 bfd_mach_o_write_symtab_content (bfd
*abfd
, bfd_mach_o_symtab_command
*sym
)
1968 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1970 unsigned int wide
= bfd_mach_o_wide_p (abfd
);
1971 struct bfd_strtab_hash
*strtab
;
1972 asymbol
**symbols
= bfd_get_outsymbols (abfd
);
1975 /* Write the symbols first. */
1976 if (bfd_seek (abfd
, sym
->symoff
, SEEK_SET
) != 0)
1979 strtab
= _bfd_stringtab_init ();
1984 /* Although we don't strictly need to do this, for compatibility with
1985 Darwin system tools, actually output an empty string for the index
1987 _bfd_stringtab_add (strtab
, "", TRUE
, FALSE
);
1989 for (i
= 0; i
< sym
->nsyms
; i
++)
1991 bfd_size_type str_index
;
1992 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
1994 if (s
->symbol
.name
== 0 || s
->symbol
.name
[0] == '\0')
1995 /* An index of 0 always means the empty string. */
1999 str_index
= _bfd_stringtab_add (strtab
, s
->symbol
.name
, TRUE
, FALSE
);
2001 if (str_index
== (bfd_size_type
) -1)
2007 struct mach_o_nlist_64_external raw
;
2009 bfd_h_put_32 (abfd
, str_index
, raw
.n_strx
);
2010 bfd_h_put_8 (abfd
, s
->n_type
, raw
.n_type
);
2011 bfd_h_put_8 (abfd
, s
->n_sect
, raw
.n_sect
);
2012 bfd_h_put_16 (abfd
, s
->n_desc
, raw
.n_desc
);
2013 bfd_h_put_64 (abfd
, s
->symbol
.section
->vma
+ s
->symbol
.value
,
2016 if (bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2021 struct mach_o_nlist_external raw
;
2023 bfd_h_put_32 (abfd
, str_index
, raw
.n_strx
);
2024 bfd_h_put_8 (abfd
, s
->n_type
, raw
.n_type
);
2025 bfd_h_put_8 (abfd
, s
->n_sect
, raw
.n_sect
);
2026 bfd_h_put_16 (abfd
, s
->n_desc
, raw
.n_desc
);
2027 bfd_h_put_32 (abfd
, s
->symbol
.section
->vma
+ s
->symbol
.value
,
2030 if (bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2034 sym
->strsize
= _bfd_stringtab_size (strtab
);
2035 sym
->stroff
= mdata
->filelen
;
2036 mdata
->filelen
+= sym
->strsize
;
2038 if (bfd_seek (abfd
, sym
->stroff
, SEEK_SET
) != 0)
2041 if (!_bfd_stringtab_emit (abfd
, strtab
))
2044 /* Pad string table. */
2045 padlen
= bfd_mach_o_pad4 (abfd
, sym
->strsize
);
2048 mdata
->filelen
+= padlen
;
2049 sym
->strsize
+= padlen
;
2054 _bfd_stringtab_free (strtab
);
2060 bfd_mach_o_write_symtab (bfd
*abfd
, bfd_mach_o_load_command
*command
)
2062 bfd_mach_o_symtab_command
*sym
= &command
->command
.symtab
;
2063 struct mach_o_symtab_command_external raw
;
2065 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SYMTAB
);
2068 bfd_h_put_32 (abfd
, sym
->symoff
, raw
.symoff
);
2069 bfd_h_put_32 (abfd
, sym
->nsyms
, raw
.nsyms
);
2070 bfd_h_put_32 (abfd
, sym
->stroff
, raw
.stroff
);
2071 bfd_h_put_32 (abfd
, sym
->strsize
, raw
.strsize
);
2073 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
2074 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2080 /* Count the number of indirect symbols in the image.
2081 Requires that the sections are in their final order. */
2084 bfd_mach_o_count_indirect_symbols (bfd
*abfd
, bfd_mach_o_data_struct
*mdata
)
2087 unsigned int nisyms
= 0;
2089 for (i
= 0; i
< mdata
->nsects
; ++i
)
2091 bfd_mach_o_section
*sec
= mdata
->sections
[i
];
2093 switch (sec
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
2095 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
:
2096 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
:
2097 case BFD_MACH_O_S_SYMBOL_STUBS
:
2098 nisyms
+= bfd_mach_o_section_get_nbr_indirect (abfd
, sec
);
2107 /* Create the dysymtab. */
2110 bfd_mach_o_build_dysymtab (bfd
*abfd
, bfd_mach_o_dysymtab_command
*cmd
)
2112 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
2115 We are not going to try and fill these in yet and, moreover, we are
2116 going to bail if they are already set. */
2117 if (cmd
->nmodtab
!= 0
2119 || cmd
->nextrefsyms
!= 0)
2121 _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet"
2122 " implemented for dysymtab commands."));
2128 if (bfd_get_symcount (abfd
) > 0)
2130 asymbol
**symbols
= bfd_get_outsymbols (abfd
);
2133 /* Count the number of each kind of symbol. */
2134 for (i
= 0; i
< bfd_get_symcount (abfd
); ++i
)
2136 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
2137 if (s
->n_type
& (BFD_MACH_O_N_EXT
| BFD_MACH_O_N_PEXT
))
2141 cmd
->iextdefsym
= i
;
2142 for (; i
< bfd_get_symcount (abfd
); ++i
)
2144 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
2145 if ((s
->n_type
& BFD_MACH_O_N_TYPE
) == BFD_MACH_O_N_UNDF
)
2148 cmd
->nextdefsym
= i
- cmd
->nlocalsym
;
2149 cmd
->iundefsym
= cmd
->nextdefsym
+ cmd
->iextdefsym
;
2150 cmd
->nundefsym
= bfd_get_symcount (abfd
)
2157 cmd
->iextdefsym
= 0;
2158 cmd
->nextdefsym
= 0;
2163 cmd
->nindirectsyms
= bfd_mach_o_count_indirect_symbols (abfd
, mdata
);
2164 if (cmd
->nindirectsyms
> 0)
2169 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, 2);
2170 cmd
->indirectsymoff
= mdata
->filelen
;
2171 mdata
->filelen
+= cmd
->nindirectsyms
* 4;
2173 if (cmd
->nindirectsyms
* 4 < cmd
->nindirectsyms
)
2175 cmd
->indirect_syms
= bfd_zalloc (abfd
, cmd
->nindirectsyms
* 4);
2176 if (cmd
->indirect_syms
== NULL
)
2180 for (i
= 0; i
< mdata
->nsects
; ++i
)
2182 bfd_mach_o_section
*sec
= mdata
->sections
[i
];
2184 switch (sec
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
2186 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
:
2187 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
:
2188 case BFD_MACH_O_S_SYMBOL_STUBS
:
2191 bfd_mach_o_asymbol
**isyms
= sec
->indirect_syms
;
2193 num
= bfd_mach_o_section_get_nbr_indirect (abfd
, sec
);
2194 if (isyms
== NULL
|| num
== 0)
2196 /* Record the starting index in the reserved1 field. */
2198 for (j
= 0; j
< num
; j
++, n
++)
2200 if (isyms
[j
] == NULL
)
2201 cmd
->indirect_syms
[n
] = BFD_MACH_O_INDIRECT_SYM_LOCAL
;
2202 else if (isyms
[j
]->symbol
.section
== bfd_abs_section_ptr
2203 && ! (isyms
[j
]->n_type
& BFD_MACH_O_N_EXT
))
2204 cmd
->indirect_syms
[n
] = BFD_MACH_O_INDIRECT_SYM_LOCAL
2205 | BFD_MACH_O_INDIRECT_SYM_ABS
;
2207 cmd
->indirect_syms
[n
] = isyms
[j
]->symbol
.udata
.i
;
2220 /* Write a dysymtab command.
2221 TODO: Possibly coalesce writes of smaller objects. */
2224 bfd_mach_o_write_dysymtab (bfd
*abfd
, bfd_mach_o_load_command
*command
)
2226 bfd_mach_o_dysymtab_command
*cmd
= &command
->command
.dysymtab
;
2228 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_DYSYMTAB
);
2230 if (cmd
->nmodtab
!= 0)
2234 if (bfd_seek (abfd
, cmd
->modtaboff
, SEEK_SET
) != 0)
2237 for (i
= 0; i
< cmd
->nmodtab
; i
++)
2239 bfd_mach_o_dylib_module
*module
= &cmd
->dylib_module
[i
];
2243 iinit
= module
->iinit
& 0xffff;
2244 iinit
|= ((module
->iterm
& 0xffff) << 16);
2246 ninit
= module
->ninit
& 0xffff;
2247 ninit
|= ((module
->nterm
& 0xffff) << 16);
2249 if (bfd_mach_o_wide_p (abfd
))
2251 struct mach_o_dylib_module_64_external w
;
2253 bfd_h_put_32 (abfd
, module
->module_name_idx
, &w
.module_name
);
2254 bfd_h_put_32 (abfd
, module
->iextdefsym
, &w
.iextdefsym
);
2255 bfd_h_put_32 (abfd
, module
->nextdefsym
, &w
.nextdefsym
);
2256 bfd_h_put_32 (abfd
, module
->irefsym
, &w
.irefsym
);
2257 bfd_h_put_32 (abfd
, module
->nrefsym
, &w
.nrefsym
);
2258 bfd_h_put_32 (abfd
, module
->ilocalsym
, &w
.ilocalsym
);
2259 bfd_h_put_32 (abfd
, module
->nlocalsym
, &w
.nlocalsym
);
2260 bfd_h_put_32 (abfd
, module
->iextrel
, &w
.iextrel
);
2261 bfd_h_put_32 (abfd
, module
->nextrel
, &w
.nextrel
);
2262 bfd_h_put_32 (abfd
, iinit
, &w
.iinit_iterm
);
2263 bfd_h_put_32 (abfd
, ninit
, &w
.ninit_nterm
);
2264 bfd_h_put_64 (abfd
, module
->objc_module_info_addr
,
2265 &w
.objc_module_info_addr
);
2266 bfd_h_put_32 (abfd
, module
->objc_module_info_size
,
2267 &w
.objc_module_info_size
);
2269 if (bfd_bwrite ((void *) &w
, sizeof (w
), abfd
) != sizeof (w
))
2274 struct mach_o_dylib_module_external n
;
2276 bfd_h_put_32 (abfd
, module
->module_name_idx
, &n
.module_name
);
2277 bfd_h_put_32 (abfd
, module
->iextdefsym
, &n
.iextdefsym
);
2278 bfd_h_put_32 (abfd
, module
->nextdefsym
, &n
.nextdefsym
);
2279 bfd_h_put_32 (abfd
, module
->irefsym
, &n
.irefsym
);
2280 bfd_h_put_32 (abfd
, module
->nrefsym
, &n
.nrefsym
);
2281 bfd_h_put_32 (abfd
, module
->ilocalsym
, &n
.ilocalsym
);
2282 bfd_h_put_32 (abfd
, module
->nlocalsym
, &n
.nlocalsym
);
2283 bfd_h_put_32 (abfd
, module
->iextrel
, &n
.iextrel
);
2284 bfd_h_put_32 (abfd
, module
->nextrel
, &n
.nextrel
);
2285 bfd_h_put_32 (abfd
, iinit
, &n
.iinit_iterm
);
2286 bfd_h_put_32 (abfd
, ninit
, &n
.ninit_nterm
);
2287 bfd_h_put_32 (abfd
, module
->objc_module_info_addr
,
2288 &n
.objc_module_info_addr
);
2289 bfd_h_put_32 (abfd
, module
->objc_module_info_size
,
2290 &n
.objc_module_info_size
);
2292 if (bfd_bwrite ((void *) &n
, sizeof (n
), abfd
) != sizeof (n
))
2302 if (bfd_seek (abfd
, cmd
->tocoff
, SEEK_SET
) != 0)
2305 for (i
= 0; i
< cmd
->ntoc
; i
++)
2307 struct mach_o_dylib_table_of_contents_external raw
;
2308 bfd_mach_o_dylib_table_of_content
*toc
= &cmd
->dylib_toc
[i
];
2310 bfd_h_put_32 (abfd
, toc
->symbol_index
, &raw
.symbol_index
);
2311 bfd_h_put_32 (abfd
, toc
->module_index
, &raw
.module_index
);
2313 if (bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2318 if (cmd
->nindirectsyms
> 0)
2322 if (bfd_seek (abfd
, cmd
->indirectsymoff
, SEEK_SET
) != 0)
2325 for (i
= 0; i
< cmd
->nindirectsyms
; ++i
)
2327 unsigned char raw
[4];
2329 bfd_h_put_32 (abfd
, cmd
->indirect_syms
[i
], &raw
);
2330 if (bfd_bwrite (raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2335 if (cmd
->nextrefsyms
!= 0)
2339 if (bfd_seek (abfd
, cmd
->extrefsymoff
, SEEK_SET
) != 0)
2342 for (i
= 0; i
< cmd
->nextrefsyms
; i
++)
2345 unsigned char raw
[4];
2346 bfd_mach_o_dylib_reference
*ref
= &cmd
->ext_refs
[i
];
2348 /* Fields isym and flags are written as bit-fields, thus we need
2349 a specific processing for endianness. */
2351 if (bfd_big_endian (abfd
))
2353 v
= ((ref
->isym
& 0xffffff) << 8);
2354 v
|= ref
->flags
& 0xff;
2358 v
= ref
->isym
& 0xffffff;
2359 v
|= ((ref
->flags
& 0xff) << 24);
2362 bfd_h_put_32 (abfd
, v
, raw
);
2363 if (bfd_bwrite (raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2369 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0)
2373 struct mach_o_dysymtab_command_external raw
;
2375 bfd_h_put_32 (abfd
, cmd
->ilocalsym
, &raw
.ilocalsym
);
2376 bfd_h_put_32 (abfd
, cmd
->nlocalsym
, &raw
.nlocalsym
);
2377 bfd_h_put_32 (abfd
, cmd
->iextdefsym
, &raw
.iextdefsym
);
2378 bfd_h_put_32 (abfd
, cmd
->nextdefsym
, &raw
.nextdefsym
);
2379 bfd_h_put_32 (abfd
, cmd
->iundefsym
, &raw
.iundefsym
);
2380 bfd_h_put_32 (abfd
, cmd
->nundefsym
, &raw
.nundefsym
);
2381 bfd_h_put_32 (abfd
, cmd
->tocoff
, &raw
.tocoff
);
2382 bfd_h_put_32 (abfd
, cmd
->ntoc
, &raw
.ntoc
);
2383 bfd_h_put_32 (abfd
, cmd
->modtaboff
, &raw
.modtaboff
);
2384 bfd_h_put_32 (abfd
, cmd
->nmodtab
, &raw
.nmodtab
);
2385 bfd_h_put_32 (abfd
, cmd
->extrefsymoff
, &raw
.extrefsymoff
);
2386 bfd_h_put_32 (abfd
, cmd
->nextrefsyms
, &raw
.nextrefsyms
);
2387 bfd_h_put_32 (abfd
, cmd
->indirectsymoff
, &raw
.indirectsymoff
);
2388 bfd_h_put_32 (abfd
, cmd
->nindirectsyms
, &raw
.nindirectsyms
);
2389 bfd_h_put_32 (abfd
, cmd
->extreloff
, &raw
.extreloff
);
2390 bfd_h_put_32 (abfd
, cmd
->nextrel
, &raw
.nextrel
);
2391 bfd_h_put_32 (abfd
, cmd
->locreloff
, &raw
.locreloff
);
2392 bfd_h_put_32 (abfd
, cmd
->nlocrel
, &raw
.nlocrel
);
2394 if (bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2402 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol
*s
)
2404 unsigned mtyp
= s
->n_type
& BFD_MACH_O_N_TYPE
;
2406 /* Just leave debug symbols where they are (pretend they are local, and
2407 then they will just be sorted on position). */
2408 if (s
->n_type
& BFD_MACH_O_N_STAB
)
2411 /* Local (we should never see an undefined local AFAICT). */
2412 if (! (s
->n_type
& (BFD_MACH_O_N_EXT
| BFD_MACH_O_N_PEXT
)))
2415 /* Common symbols look like undefined externs. */
2416 if (mtyp
== BFD_MACH_O_N_UNDF
)
2419 /* A defined non-local, non-debug symbol. */
2424 bfd_mach_o_cf_symbols (const void *a
, const void *b
)
2426 bfd_mach_o_asymbol
*sa
= *(bfd_mach_o_asymbol
**) a
;
2427 bfd_mach_o_asymbol
*sb
= *(bfd_mach_o_asymbol
**) b
;
2428 unsigned int soa
, sob
;
2430 soa
= bfd_mach_o_primary_symbol_sort_key (sa
);
2431 sob
= bfd_mach_o_primary_symbol_sort_key (sb
);
2438 /* If it's local or stab, just preserve the input order. */
2441 if (sa
->symbol
.udata
.i
< sb
->symbol
.udata
.i
)
2443 if (sa
->symbol
.udata
.i
> sb
->symbol
.udata
.i
)
2446 /* This is probably an error. */
2450 /* The second sort key is name. */
2451 return strcmp (sa
->symbol
.name
, sb
->symbol
.name
);
2454 /* Process the symbols.
2456 This should be OK for single-module files - but it is not likely to work
2457 for multi-module shared libraries.
2459 (a) If the application has not filled in the relevant mach-o fields, make
2462 (b) Order them, like this:
2465 ( ii) external defined
2467 (iii) external undefined/common
2474 bfd_mach_o_mangle_symbols (bfd
*abfd
)
2477 asymbol
**symbols
= bfd_get_outsymbols (abfd
);
2479 if (symbols
== NULL
|| bfd_get_symcount (abfd
) == 0)
2482 for (i
= 0; i
< bfd_get_symcount (abfd
); i
++)
2484 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
2486 /* We use this value, which is out-of-range as a symbol index, to signal
2487 that the mach-o-specific data are not filled in and need to be created
2488 from the bfd values. It is much preferable for the application to do
2489 this, since more meaningful diagnostics can be made that way. */
2491 if (s
->symbol
.udata
.i
== SYM_MACHO_FIELDS_UNSET
)
2493 /* No symbol information has been set - therefore determine
2494 it from the bfd symbol flags/info. */
2495 if (s
->symbol
.section
== bfd_abs_section_ptr
)
2496 s
->n_type
= BFD_MACH_O_N_ABS
;
2497 else if (s
->symbol
.section
== bfd_und_section_ptr
)
2499 s
->n_type
= BFD_MACH_O_N_UNDF
;
2500 if (s
->symbol
.flags
& BSF_WEAK
)
2501 s
->n_desc
|= BFD_MACH_O_N_WEAK_REF
;
2502 /* mach-o automatically makes undefined symbols extern. */
2503 s
->n_type
|= BFD_MACH_O_N_EXT
;
2504 s
->symbol
.flags
|= BSF_GLOBAL
;
2506 else if (s
->symbol
.section
== bfd_com_section_ptr
)
2508 s
->n_type
= BFD_MACH_O_N_UNDF
| BFD_MACH_O_N_EXT
;
2509 s
->symbol
.flags
|= BSF_GLOBAL
;
2512 s
->n_type
= BFD_MACH_O_N_SECT
;
2515 /* Update external symbol bit in case objcopy changed it. */
2516 if (s
->symbol
.flags
& BSF_GLOBAL
)
2517 s
->n_type
|= BFD_MACH_O_N_EXT
;
2519 s
->n_type
&= ~BFD_MACH_O_N_EXT
;
2521 /* Put the section index in, where required. */
2522 if ((s
->symbol
.section
!= bfd_abs_section_ptr
2523 && s
->symbol
.section
!= bfd_und_section_ptr
2524 && s
->symbol
.section
!= bfd_com_section_ptr
)
2525 || ((s
->n_type
& BFD_MACH_O_N_STAB
) != 0
2526 && s
->symbol
.name
== NULL
))
2527 s
->n_sect
= s
->symbol
.section
->output_section
->target_index
;
2529 /* Number to preserve order for local and debug syms. */
2530 s
->symbol
.udata
.i
= i
;
2533 /* Sort the symbols. */
2534 qsort ((void *) symbols
, (size_t) bfd_get_symcount (abfd
),
2535 sizeof (asymbol
*), bfd_mach_o_cf_symbols
);
2537 for (i
= 0; i
< bfd_get_symcount (abfd
); ++i
)
2539 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
2540 s
->symbol
.udata
.i
= i
; /* renumber. */
2546 /* We build a flat table of sections, which can be re-ordered if necessary.
2547 Fill in the section number and other mach-o-specific data. */
2550 bfd_mach_o_mangle_sections (bfd
*abfd
, bfd_mach_o_data_struct
*mdata
)
2553 unsigned target_index
;
2556 nsect
= bfd_count_sections (abfd
);
2558 /* Don't do it if it's already set - assume the application knows what it's
2560 if (mdata
->nsects
== nsect
2561 && (mdata
->nsects
== 0 || mdata
->sections
!= NULL
))
2564 /* We need to check that this can be done... */
2567 _bfd_error_handler (_("mach-o: there are too many sections (%u)"
2568 " maximum is 255,\n"), nsect
);
2572 mdata
->nsects
= nsect
;
2573 mdata
->sections
= bfd_alloc2 (abfd
,
2574 mdata
->nsects
, sizeof (bfd_mach_o_section
*));
2575 if (mdata
->sections
== NULL
)
2578 /* Create Mach-O sections.
2579 Section type, attribute and align should have been set when the
2580 section was created - either read in or specified. */
2582 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
2584 unsigned bfd_align
= bfd_get_section_alignment (abfd
, sec
);
2585 bfd_mach_o_section
*msect
= bfd_mach_o_get_mach_o_section (sec
);
2587 mdata
->sections
[target_index
] = msect
;
2589 msect
->addr
= bfd_get_section_vma (abfd
, sec
);
2590 msect
->size
= bfd_get_section_size (sec
);
2592 /* Use the largest alignment set, in case it was bumped after the
2593 section was created. */
2594 msect
->align
= msect
->align
> bfd_align
? msect
->align
: bfd_align
;
2597 sec
->target_index
= ++target_index
;
2604 bfd_mach_o_write_contents (bfd
*abfd
)
2606 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
2607 bfd_mach_o_load_command
*cmd
;
2608 bfd_mach_o_symtab_command
*symtab
= NULL
;
2609 bfd_mach_o_dysymtab_command
*dysymtab
= NULL
;
2610 bfd_mach_o_segment_command
*linkedit
= NULL
;
2612 /* Make the commands, if not already present. */
2613 if (!abfd
->output_has_begun
&& !bfd_mach_o_build_commands (abfd
))
2615 abfd
->output_has_begun
= TRUE
;
2617 /* Write the header. */
2618 if (!bfd_mach_o_write_header (abfd
, &mdata
->header
))
2621 /* First pass: allocate the linkedit segment. */
2622 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
2625 case BFD_MACH_O_LC_SEGMENT_64
:
2626 case BFD_MACH_O_LC_SEGMENT
:
2627 if (strcmp (cmd
->command
.segment
.segname
, "__LINKEDIT") == 0)
2628 linkedit
= &cmd
->command
.segment
;
2630 case BFD_MACH_O_LC_SYMTAB
:
2631 symtab
= &cmd
->command
.symtab
;
2633 case BFD_MACH_O_LC_DYSYMTAB
:
2634 dysymtab
= &cmd
->command
.dysymtab
;
2636 case BFD_MACH_O_LC_DYLD_INFO
:
2638 bfd_mach_o_dyld_info_command
*di
= &cmd
->command
.dyld_info
;
2640 if (di
->rebase_size
!= 0)
2642 di
->rebase_off
= mdata
->filelen
;
2643 mdata
->filelen
+= di
->rebase_size
;
2645 if (di
->bind_size
!= 0)
2647 di
->bind_off
= mdata
->filelen
;
2648 mdata
->filelen
+= di
->bind_size
;
2650 if (di
->weak_bind_size
!= 0)
2652 di
->weak_bind_off
= mdata
->filelen
;
2653 mdata
->filelen
+= di
->weak_bind_size
;
2655 if (di
->lazy_bind_size
!= 0)
2657 di
->lazy_bind_off
= mdata
->filelen
;
2658 mdata
->filelen
+= di
->lazy_bind_size
;
2660 if (di
->export_size
!= 0)
2662 di
->export_off
= mdata
->filelen
;
2663 mdata
->filelen
+= di
->export_size
;
2667 case BFD_MACH_O_LC_LOAD_DYLIB
:
2668 case BFD_MACH_O_LC_LOAD_DYLINKER
:
2669 case BFD_MACH_O_LC_MAIN
:
2670 /* Nothing to do. */
2674 (_("unable to allocate data for load command %#x"),
2679 /* Specially handle symtab and dysymtab. */
2681 /* Pre-allocate the symbol table (but not the string table). The reason
2682 is that the dysymtab is after the symbol table but before the string
2683 table (required by the native strip tool). */
2686 unsigned int symlen
;
2687 unsigned int wide
= bfd_mach_o_wide_p (abfd
);
2689 symlen
= wide
? BFD_MACH_O_NLIST_64_SIZE
: BFD_MACH_O_NLIST_SIZE
;
2691 /* Align for symbols. */
2692 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, wide
? 3 : 2);
2693 symtab
->symoff
= mdata
->filelen
;
2695 symtab
->nsyms
= bfd_get_symcount (abfd
);
2696 mdata
->filelen
+= symtab
->nsyms
* symlen
;
2699 /* Build the dysymtab. */
2700 if (dysymtab
!= NULL
)
2701 if (!bfd_mach_o_build_dysymtab (abfd
, dysymtab
))
2704 /* Write symtab and strtab. */
2706 if (!bfd_mach_o_write_symtab_content (abfd
, symtab
))
2709 /* Adjust linkedit size. */
2710 if (linkedit
!= NULL
)
2712 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2714 linkedit
->vmsize
= mdata
->filelen
- linkedit
->fileoff
;
2715 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2716 linkedit
->filesize
= mdata
->filelen
- linkedit
->fileoff
;
2718 linkedit
->initprot
= BFD_MACH_O_PROT_READ
;
2719 linkedit
->maxprot
= BFD_MACH_O_PROT_READ
| BFD_MACH_O_PROT_WRITE
2720 | BFD_MACH_O_PROT_EXECUTE
;
2723 /* Second pass: write commands. */
2724 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
2726 struct mach_o_load_command_external raw
;
2727 unsigned long typeflag
;
2729 typeflag
= cmd
->type
| (cmd
->type_required
? BFD_MACH_O_LC_REQ_DYLD
: 0);
2731 bfd_h_put_32 (abfd
, typeflag
, raw
.cmd
);
2732 bfd_h_put_32 (abfd
, cmd
->len
, raw
.cmdsize
);
2734 if (bfd_seek (abfd
, cmd
->offset
, SEEK_SET
) != 0
2735 || bfd_bwrite (&raw
, BFD_MACH_O_LC_SIZE
, abfd
) != 8)
2740 case BFD_MACH_O_LC_SEGMENT
:
2741 if (!bfd_mach_o_write_segment_32 (abfd
, cmd
))
2744 case BFD_MACH_O_LC_SEGMENT_64
:
2745 if (!bfd_mach_o_write_segment_64 (abfd
, cmd
))
2748 case BFD_MACH_O_LC_SYMTAB
:
2749 if (!bfd_mach_o_write_symtab (abfd
, cmd
))
2752 case BFD_MACH_O_LC_DYSYMTAB
:
2753 if (!bfd_mach_o_write_dysymtab (abfd
, cmd
))
2756 case BFD_MACH_O_LC_THREAD
:
2757 case BFD_MACH_O_LC_UNIXTHREAD
:
2758 if (!bfd_mach_o_write_thread (abfd
, cmd
))
2761 case BFD_MACH_O_LC_LOAD_DYLIB
:
2762 if (!bfd_mach_o_write_dylib (abfd
, cmd
))
2765 case BFD_MACH_O_LC_LOAD_DYLINKER
:
2766 if (!bfd_mach_o_write_dylinker (abfd
, cmd
))
2769 case BFD_MACH_O_LC_MAIN
:
2770 if (!bfd_mach_o_write_main (abfd
, cmd
))
2773 case BFD_MACH_O_LC_DYLD_INFO
:
2774 if (!bfd_mach_o_write_dyld_info (abfd
, cmd
))
2779 (_("unable to write unknown load command %#x"),
2789 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command
*seg
,
2790 bfd_mach_o_section
*s
)
2792 if (seg
->sect_head
== NULL
)
2795 seg
->sect_tail
->next
= s
;
2799 /* Create section Mach-O flags from BFD flags. */
2802 bfd_mach_o_set_section_flags_from_bfd (bfd
*abfd ATTRIBUTE_UNUSED
,
2806 bfd_mach_o_section
*s
= bfd_mach_o_get_mach_o_section (sec
);
2808 /* Create default flags. */
2809 bfd_flags
= bfd_get_section_flags (abfd
, sec
);
2810 if ((bfd_flags
& SEC_CODE
) == SEC_CODE
)
2811 s
->flags
= BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2812 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2813 | BFD_MACH_O_S_REGULAR
;
2814 else if ((bfd_flags
& (SEC_ALLOC
| SEC_LOAD
)) == SEC_ALLOC
)
2815 s
->flags
= BFD_MACH_O_S_ZEROFILL
;
2816 else if (bfd_flags
& SEC_DEBUGGING
)
2817 s
->flags
= BFD_MACH_O_S_REGULAR
| BFD_MACH_O_S_ATTR_DEBUG
;
2819 s
->flags
= BFD_MACH_O_S_REGULAR
;
2823 bfd_mach_o_build_obj_seg_command (bfd
*abfd
, bfd_mach_o_segment_command
*seg
)
2825 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
2829 seg
->fileoff
= mdata
->filelen
;
2830 seg
->initprot
= BFD_MACH_O_PROT_READ
| BFD_MACH_O_PROT_WRITE
2831 | BFD_MACH_O_PROT_EXECUTE
;
2832 seg
->maxprot
= seg
->initprot
;
2834 /* Append sections to the segment.
2836 This is a little tedious, we have to honor the need to account zerofill
2837 sections after all the rest. This forces us to do the calculation of
2838 total vmsize in three passes so that any alignment increments are
2839 properly accounted. */
2840 for (i
= 0; i
< mdata
->nsects
; ++i
)
2842 bfd_mach_o_section
*s
= mdata
->sections
[i
];
2843 asection
*sec
= s
->bfdsection
;
2845 /* Although we account for zerofill section sizes in vm order, they are
2846 placed in the file in source sequence. */
2847 bfd_mach_o_append_section_to_segment (seg
, s
);
2850 /* Zerofill sections have zero file size & offset, the only content
2851 written to the file is the symbols. */
2852 if ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
) == BFD_MACH_O_S_ZEROFILL
2853 || ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
2854 == BFD_MACH_O_S_GB_ZEROFILL
))
2857 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2858 sections, even those with zero size. */
2861 seg
->vmsize
= FILE_ALIGN (seg
->vmsize
, s
->align
);
2862 seg
->vmsize
+= s
->size
;
2864 /* MH_OBJECT files have unaligned content. */
2867 seg
->filesize
= FILE_ALIGN (seg
->filesize
, s
->align
);
2868 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, s
->align
);
2870 seg
->filesize
+= s
->size
;
2872 /* The system tools write even zero-sized sections with an offset
2873 field set to the current file position. */
2874 s
->offset
= mdata
->filelen
;
2877 sec
->filepos
= s
->offset
;
2878 mdata
->filelen
+= s
->size
;
2881 /* Now pass through again, for zerofill, only now we just update the
2882 vmsize, and then for zerofill_GB. */
2883 for (j
= 0; j
< 2; j
++)
2888 stype
= BFD_MACH_O_S_ZEROFILL
;
2890 stype
= BFD_MACH_O_S_GB_ZEROFILL
;
2892 for (i
= 0; i
< mdata
->nsects
; ++i
)
2894 bfd_mach_o_section
*s
= mdata
->sections
[i
];
2896 if ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
) != stype
)
2901 seg
->vmsize
= FILE_ALIGN (seg
->vmsize
, s
->align
);
2902 seg
->vmsize
+= s
->size
;
2907 /* Allocate space for the relocations. */
2908 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, 2);
2910 for (i
= 0; i
< mdata
->nsects
; ++i
)
2912 bfd_mach_o_section
*ms
= mdata
->sections
[i
];
2913 asection
*sec
= ms
->bfdsection
;
2915 ms
->nreloc
= sec
->reloc_count
;
2916 if (ms
->nreloc
== 0)
2918 /* Clear nreloc and reloff if there is no relocs. */
2922 sec
->rel_filepos
= mdata
->filelen
;
2923 ms
->reloff
= sec
->rel_filepos
;
2924 mdata
->filelen
+= sec
->reloc_count
* BFD_MACH_O_RELENT_SIZE
;
2931 bfd_mach_o_build_exec_seg_command (bfd
*abfd
, bfd_mach_o_segment_command
*seg
)
2933 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
2935 bfd_vma pagemask
= bfd_mach_o_get_backend_data (abfd
)->page_size
- 1;
2937 bfd_mach_o_section
*s
;
2941 seg
->fileoff
= mdata
->filelen
;
2946 /* Append sections to the segment. We assume they are properly ordered
2947 by vma (but we check that). */
2949 for (i
= 0; i
< mdata
->nsects
; ++i
)
2951 s
= mdata
->sections
[i
];
2953 /* Consider only sections for this segment. */
2954 if (strcmp (seg
->segname
, s
->segname
) != 0)
2957 bfd_mach_o_append_section_to_segment (seg
, s
);
2962 /* xgettext:c-format */
2963 (_("section address (%#" PRIx64
") "
2964 "below start of segment (%#" PRIx64
")"),
2965 (uint64_t) s
->addr
, (uint64_t) vma
);
2969 vma
= s
->addr
+ s
->size
;
2972 /* Set segment file offset: make it page aligned. */
2973 vma
= seg
->sect_head
->addr
;
2974 seg
->vmaddr
= vma
& ~pagemask
;
2975 if ((mdata
->filelen
& pagemask
) > (vma
& pagemask
))
2976 mdata
->filelen
+= pagemask
+ 1;
2977 seg
->fileoff
= mdata
->filelen
& ~pagemask
;
2978 mdata
->filelen
= seg
->fileoff
+ (vma
& pagemask
);
2980 /* Set section file offset. */
2981 for (s
= seg
->sect_head
; s
!= NULL
; s
= s
->next
)
2983 asection
*sec
= s
->bfdsection
;
2984 flagword flags
= bfd_get_section_flags (abfd
, sec
);
2986 /* Adjust segment size. */
2987 seg
->vmsize
= FILE_ALIGN (seg
->vmsize
, s
->align
);
2988 seg
->vmsize
+= s
->size
;
2990 /* File offset and length. */
2991 seg
->filesize
= FILE_ALIGN (seg
->filesize
, s
->align
);
2993 if ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
) != BFD_MACH_O_S_ZEROFILL
2994 && ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
2995 != BFD_MACH_O_S_GB_ZEROFILL
))
2997 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, s
->align
);
2999 s
->offset
= mdata
->filelen
;
3000 s
->bfdsection
->filepos
= s
->offset
;
3002 seg
->filesize
+= s
->size
;
3003 mdata
->filelen
+= s
->size
;
3008 s
->bfdsection
->filepos
= 0;
3011 /* Set protection. */
3012 if (flags
& SEC_LOAD
)
3014 if (flags
& SEC_CODE
)
3015 seg
->initprot
|= BFD_MACH_O_PROT_READ
| BFD_MACH_O_PROT_EXECUTE
;
3016 if ((flags
& (SEC_DATA
| SEC_READONLY
)) == SEC_DATA
)
3017 seg
->initprot
|= BFD_MACH_O_PROT_WRITE
| BFD_MACH_O_PROT_READ
;
3020 /* Relocs shouldn't appear in non-object files. */
3021 if (s
->bfdsection
->reloc_count
!= 0)
3026 if (seg
->initprot
!= 0)
3027 seg
->maxprot
= BFD_MACH_O_PROT_READ
| BFD_MACH_O_PROT_WRITE
3028 | BFD_MACH_O_PROT_EXECUTE
;
3032 /* Round segment size (and file size). */
3033 seg
->vmsize
= (seg
->vmsize
+ pagemask
) & ~pagemask
;
3034 seg
->filesize
= (seg
->filesize
+ pagemask
) & ~pagemask
;
3035 mdata
->filelen
= (mdata
->filelen
+ pagemask
) & ~pagemask
;
3040 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
3041 fields in header. */
3044 bfd_mach_o_layout_commands (bfd_mach_o_data_struct
*mdata
)
3046 unsigned wide
= mach_o_wide_p (&mdata
->header
);
3047 unsigned int hdrlen
;
3049 bfd_mach_o_load_command
*cmd
;
3051 bfd_boolean ret
= TRUE
;
3053 hdrlen
= wide
? BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
3054 align
= wide
? 8 - 1 : 4 - 1;
3056 mdata
->header
.ncmds
= 0;
3058 for (cmd
= mdata
->first_command
; cmd
; cmd
= cmd
->next
)
3060 mdata
->header
.ncmds
++;
3061 cmd
->offset
= offset
;
3065 case BFD_MACH_O_LC_SEGMENT_64
:
3066 cmd
->len
= BFD_MACH_O_LC_SEGMENT_64_SIZE
3067 + BFD_MACH_O_SECTION_64_SIZE
* cmd
->command
.segment
.nsects
;
3069 case BFD_MACH_O_LC_SEGMENT
:
3070 cmd
->len
= BFD_MACH_O_LC_SEGMENT_SIZE
3071 + BFD_MACH_O_SECTION_SIZE
* cmd
->command
.segment
.nsects
;
3073 case BFD_MACH_O_LC_SYMTAB
:
3074 cmd
->len
= sizeof (struct mach_o_symtab_command_external
)
3075 + BFD_MACH_O_LC_SIZE
;
3077 case BFD_MACH_O_LC_DYSYMTAB
:
3078 cmd
->len
= sizeof (struct mach_o_dysymtab_command_external
)
3079 + BFD_MACH_O_LC_SIZE
;
3081 case BFD_MACH_O_LC_LOAD_DYLIB
:
3082 cmd
->len
= sizeof (struct mach_o_dylib_command_external
)
3083 + BFD_MACH_O_LC_SIZE
;
3084 cmd
->command
.dylib
.name_offset
= cmd
->len
;
3085 cmd
->len
+= strlen (cmd
->command
.dylib
.name_str
);
3086 cmd
->len
= (cmd
->len
+ align
) & ~align
;
3088 case BFD_MACH_O_LC_LOAD_DYLINKER
:
3089 cmd
->len
= sizeof (struct mach_o_str_command_external
)
3090 + BFD_MACH_O_LC_SIZE
;
3091 cmd
->command
.dylinker
.name_offset
= cmd
->len
;
3092 cmd
->len
+= strlen (cmd
->command
.dylinker
.name_str
);
3093 cmd
->len
= (cmd
->len
+ align
) & ~align
;
3095 case BFD_MACH_O_LC_MAIN
:
3096 cmd
->len
= sizeof (struct mach_o_entry_point_command_external
)
3097 + BFD_MACH_O_LC_SIZE
;
3099 case BFD_MACH_O_LC_DYLD_INFO
:
3100 cmd
->len
= sizeof (struct mach_o_dyld_info_command_external
)
3101 + BFD_MACH_O_LC_SIZE
;
3105 (_("unable to layout unknown load command %#x"),
3111 BFD_ASSERT (cmd
->len
% (align
+ 1) == 0);
3114 mdata
->header
.sizeofcmds
= offset
- hdrlen
;
3115 mdata
->filelen
= offset
;
3120 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
3124 bfd_mach_o_init_segment (bfd_mach_o_data_struct
*mdata
,
3125 bfd_mach_o_load_command
*cmd
,
3126 const char *segname
, unsigned int nbr_sect
)
3128 bfd_mach_o_segment_command
*seg
= &cmd
->command
.segment
;
3129 unsigned wide
= mach_o_wide_p (&mdata
->header
);
3131 /* Init segment command. */
3132 cmd
->type
= wide
? BFD_MACH_O_LC_SEGMENT_64
: BFD_MACH_O_LC_SEGMENT
;
3133 cmd
->type_required
= FALSE
;
3135 strcpy (seg
->segname
, segname
);
3136 seg
->nsects
= nbr_sect
;
3146 seg
->sect_head
= NULL
;
3147 seg
->sect_tail
= NULL
;
3150 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
3151 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
3152 and copy functionality. */
3155 bfd_mach_o_build_commands (bfd
*abfd
)
3157 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
3158 unsigned wide
= mach_o_wide_p (&mdata
->header
);
3159 unsigned int nbr_segcmd
= 0;
3160 bfd_mach_o_load_command
*commands
;
3161 unsigned int nbr_commands
;
3162 int symtab_idx
= -1;
3163 int dysymtab_idx
= -1;
3167 /* Return now if already built. */
3168 if (mdata
->header
.ncmds
!= 0)
3171 /* Fill in the file type, if not already set. */
3172 if (mdata
->header
.filetype
== 0)
3174 if (abfd
->flags
& EXEC_P
)
3175 mdata
->header
.filetype
= BFD_MACH_O_MH_EXECUTE
;
3176 else if (abfd
->flags
& DYNAMIC
)
3177 mdata
->header
.filetype
= BFD_MACH_O_MH_DYLIB
;
3179 mdata
->header
.filetype
= BFD_MACH_O_MH_OBJECT
;
3182 /* If hasn't already been done, flatten sections list, and sort
3183 if/when required. Must be done before the symbol table is adjusted,
3184 since that depends on properly numbered sections. */
3185 if (mdata
->nsects
== 0 || mdata
->sections
== NULL
)
3186 if (! bfd_mach_o_mangle_sections (abfd
, mdata
))
3189 /* Order the symbol table, fill-in/check mach-o specific fields and
3190 partition out any indirect symbols. */
3191 if (!bfd_mach_o_mangle_symbols (abfd
))
3194 /* Segment commands. */
3195 if (mdata
->header
.filetype
== BFD_MACH_O_MH_OBJECT
)
3197 /* Only one segment for all the sections. But the segment is
3198 optional if there is no sections. */
3199 nbr_segcmd
= (mdata
->nsects
> 0) ? 1 : 0;
3203 bfd_mach_o_section
*prev_sect
= NULL
;
3205 /* One pagezero segment and one linkedit segment. */
3208 /* Create one segment for associated segment name in sections.
3209 Assume that sections with the same segment name are consecutive. */
3210 for (i
= 0; i
< mdata
->nsects
; i
++)
3212 bfd_mach_o_section
*this_sect
= mdata
->sections
[i
];
3214 if (prev_sect
== NULL
3215 || strcmp (prev_sect
->segname
, this_sect
->segname
) != 0)
3218 prev_sect
= this_sect
;
3223 nbr_commands
= nbr_segcmd
;
3225 /* One command for the symbol table (only if there are symbols. */
3226 if (bfd_get_symcount (abfd
) > 0)
3227 symtab_idx
= nbr_commands
++;
3230 This is a rather crude test for whether we should build a dysymtab. */
3231 if (bfd_mach_o_should_emit_dysymtab ()
3232 && bfd_get_symcount (abfd
))
3234 /* If there should be a case where a dysymtab could be emitted without
3235 a symtab (seems improbable), this would need amending. */
3236 dysymtab_idx
= nbr_commands
++;
3239 /* Add an entry point command. */
3240 if (mdata
->header
.filetype
== BFD_MACH_O_MH_EXECUTE
3241 && bfd_get_start_address (abfd
) != 0)
3242 main_idx
= nbr_commands
++;
3244 /* Well, we must have a header, at least. */
3245 mdata
->filelen
= wide
? BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
3247 /* A bit unusual, but no content is valid;
3248 as -n empty.s -o empty.o */
3249 if (nbr_commands
== 0)
3251 /* Layout commands (well none...) and set headers command fields. */
3252 return bfd_mach_o_layout_commands (mdata
);
3255 /* Create commands for segments (and symtabs), prepend them. */
3256 commands
= bfd_zalloc (abfd
, nbr_commands
* sizeof (bfd_mach_o_load_command
));
3257 if (commands
== NULL
)
3259 for (i
= 0; i
< nbr_commands
- 1; i
++)
3260 commands
[i
].next
= &commands
[i
+ 1];
3261 commands
[nbr_commands
- 1].next
= mdata
->first_command
;
3262 if (mdata
->first_command
== NULL
)
3263 mdata
->last_command
= &commands
[nbr_commands
- 1];
3264 mdata
->first_command
= &commands
[0];
3266 if (mdata
->header
.filetype
== BFD_MACH_O_MH_OBJECT
&& nbr_segcmd
!= 0)
3268 /* For object file, there is only one segment. */
3269 bfd_mach_o_init_segment (mdata
, &commands
[0], "", mdata
->nsects
);
3271 else if (nbr_segcmd
!= 0)
3273 bfd_mach_o_load_command
*cmd
;
3275 BFD_ASSERT (nbr_segcmd
>= 2);
3279 bfd_mach_o_init_segment (mdata
, cmd
, "__PAGEZERO", 0);
3281 /* Segments from sections. */
3283 for (i
= 0; i
< mdata
->nsects
;)
3285 const char *segname
= mdata
->sections
[i
]->segname
;
3286 unsigned int nbr_sect
= 1;
3288 /* Count number of sections for this segment. */
3289 for (i
++; i
< mdata
->nsects
; i
++)
3290 if (strcmp (mdata
->sections
[i
]->segname
, segname
) == 0)
3295 bfd_mach_o_init_segment (mdata
, cmd
, segname
, nbr_sect
);
3300 bfd_mach_o_init_segment (mdata
, cmd
, "__LINKEDIT", 0);
3303 if (symtab_idx
>= 0)
3305 /* Init symtab command. */
3306 bfd_mach_o_load_command
*cmd
= &commands
[symtab_idx
];
3308 cmd
->type
= BFD_MACH_O_LC_SYMTAB
;
3309 cmd
->type_required
= FALSE
;
3312 /* If required, setup symtab command, see comment above about the quality
3314 if (dysymtab_idx
>= 0)
3316 bfd_mach_o_load_command
*cmd
= &commands
[dysymtab_idx
];
3318 cmd
->type
= BFD_MACH_O_LC_DYSYMTAB
;
3319 cmd
->type_required
= FALSE
;
3322 /* Create the main command. */
3325 bfd_mach_o_load_command
*cmd
= &commands
[main_idx
];
3327 cmd
->type
= BFD_MACH_O_LC_MAIN
;
3328 cmd
->type_required
= TRUE
;
3330 cmd
->command
.main
.entryoff
= 0;
3331 cmd
->command
.main
.stacksize
= 0;
3334 /* Layout commands. */
3335 if (! bfd_mach_o_layout_commands (mdata
))
3338 /* So, now we have sized the commands and the filelen set to that.
3339 Now we can build the segment command and set the section file offsets. */
3340 if (mdata
->header
.filetype
== BFD_MACH_O_MH_OBJECT
)
3342 for (i
= 0; i
< nbr_segcmd
; i
++)
3343 if (!bfd_mach_o_build_obj_seg_command
3344 (abfd
, &commands
[i
].command
.segment
))
3351 /* Skip pagezero and linkedit segments. */
3352 for (i
= 1; i
< nbr_segcmd
- 1; i
++)
3354 bfd_mach_o_segment_command
*seg
= &commands
[i
].command
.segment
;
3356 if (!bfd_mach_o_build_exec_seg_command (abfd
, seg
))
3359 if (seg
->vmaddr
+ seg
->vmsize
> maxvma
)
3360 maxvma
= seg
->vmaddr
+ seg
->vmsize
;
3363 /* Set the size of __PAGEZERO. */
3364 commands
[0].command
.segment
.vmsize
=
3365 commands
[1].command
.segment
.vmaddr
;
3367 /* Set the vma and fileoff of __LINKEDIT. */
3368 commands
[nbr_segcmd
- 1].command
.segment
.vmaddr
= maxvma
;
3369 commands
[nbr_segcmd
- 1].command
.segment
.fileoff
= mdata
->filelen
;
3371 /* Set entry point (once segments have been laid out). */
3373 commands
[main_idx
].command
.main
.entryoff
=
3374 bfd_get_start_address (abfd
) - commands
[1].command
.segment
.vmaddr
;
3380 /* Set the contents of a section. */
3383 bfd_mach_o_set_section_contents (bfd
*abfd
,
3385 const void * location
,
3387 bfd_size_type count
)
3391 /* Trying to write the first section contents will trigger the creation of
3392 the load commands if they are not already present. */
3393 if (!abfd
->output_has_begun
&& !bfd_mach_o_build_commands (abfd
))
3399 pos
= section
->filepos
+ offset
;
3400 if (bfd_seek (abfd
, pos
, SEEK_SET
) != 0
3401 || bfd_bwrite (location
, count
, abfd
) != count
)
3408 bfd_mach_o_sizeof_headers (bfd
*a ATTRIBUTE_UNUSED
,
3409 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
3414 /* Make an empty symbol. This is required only because
3415 bfd_make_section_anyway wants to create a symbol for the section. */
3418 bfd_mach_o_make_empty_symbol (bfd
*abfd
)
3420 asymbol
*new_symbol
;
3422 new_symbol
= bfd_zalloc (abfd
, sizeof (bfd_mach_o_asymbol
));
3423 if (new_symbol
== NULL
)
3425 new_symbol
->the_bfd
= abfd
;
3426 new_symbol
->udata
.i
= SYM_MACHO_FIELDS_UNSET
;
3431 bfd_mach_o_read_header (bfd
*abfd
, file_ptr hdr_off
, bfd_mach_o_header
*header
)
3433 struct mach_o_header_external raw
;
3435 bfd_vma (*get32
) (const void *) = NULL
;
3437 /* Just read the magic number. */
3438 if (bfd_seek (abfd
, hdr_off
, SEEK_SET
) != 0
3439 || bfd_bread (raw
.magic
, sizeof (raw
.magic
), abfd
) != 4)
3442 if (bfd_getb32 (raw
.magic
) == BFD_MACH_O_MH_MAGIC
)
3444 header
->byteorder
= BFD_ENDIAN_BIG
;
3445 header
->magic
= BFD_MACH_O_MH_MAGIC
;
3446 header
->version
= 1;
3449 else if (bfd_getl32 (raw
.magic
) == BFD_MACH_O_MH_MAGIC
)
3451 header
->byteorder
= BFD_ENDIAN_LITTLE
;
3452 header
->magic
= BFD_MACH_O_MH_MAGIC
;
3453 header
->version
= 1;
3456 else if (bfd_getb32 (raw
.magic
) == BFD_MACH_O_MH_MAGIC_64
)
3458 header
->byteorder
= BFD_ENDIAN_BIG
;
3459 header
->magic
= BFD_MACH_O_MH_MAGIC_64
;
3460 header
->version
= 2;
3463 else if (bfd_getl32 (raw
.magic
) == BFD_MACH_O_MH_MAGIC_64
)
3465 header
->byteorder
= BFD_ENDIAN_LITTLE
;
3466 header
->magic
= BFD_MACH_O_MH_MAGIC_64
;
3467 header
->version
= 2;
3472 header
->byteorder
= BFD_ENDIAN_UNKNOWN
;
3476 /* Once the size of the header is known, read the full header. */
3477 size
= mach_o_wide_p (header
) ?
3478 BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
3480 if (bfd_seek (abfd
, hdr_off
, SEEK_SET
) != 0
3481 || bfd_bread (&raw
, size
, abfd
) != size
)
3484 header
->cputype
= (*get32
) (raw
.cputype
);
3485 header
->cpusubtype
= (*get32
) (raw
.cpusubtype
);
3486 header
->filetype
= (*get32
) (raw
.filetype
);
3487 header
->ncmds
= (*get32
) (raw
.ncmds
);
3488 header
->sizeofcmds
= (*get32
) (raw
.sizeofcmds
);
3489 header
->flags
= (*get32
) (raw
.flags
);
3491 if (mach_o_wide_p (header
))
3492 header
->reserved
= (*get32
) (raw
.reserved
);
3494 header
->reserved
= 0;
3500 bfd_mach_o_new_section_hook (bfd
*abfd
, asection
*sec
)
3502 bfd_mach_o_section
*s
;
3503 unsigned bfdalign
= bfd_get_section_alignment (abfd
, sec
);
3505 s
= bfd_mach_o_get_mach_o_section (sec
);
3509 static const mach_o_section_name_xlat
* xlat
;
3511 s
= (bfd_mach_o_section
*) bfd_zalloc (abfd
, sizeof (*s
));
3514 sec
->used_by_bfd
= s
;
3515 s
->bfdsection
= sec
;
3517 /* Create the Darwin seg/sect name pair from the bfd name.
3518 If this is a canonical name for which a specific paiting exists
3519 there will also be defined flags, type, attribute and alignment
3521 xlat
= bfd_mach_o_convert_section_name_to_mach_o (abfd
, sec
, s
);
3524 s
->flags
= xlat
->macho_sectype
| xlat
->macho_secattr
;
3525 s
->align
= xlat
->sectalign
> bfdalign
? xlat
->sectalign
3527 (void) bfd_set_section_alignment (abfd
, sec
, s
->align
);
3528 bfd_flags
= bfd_get_section_flags (abfd
, sec
);
3529 if (bfd_flags
== SEC_NO_FLAGS
)
3530 bfd_set_section_flags (abfd
, sec
, xlat
->bfd_flags
);
3533 /* Create default flags. */
3534 bfd_mach_o_set_section_flags_from_bfd (abfd
, sec
);
3537 return _bfd_generic_new_section_hook (abfd
, sec
);
3541 bfd_mach_o_init_section_from_mach_o (bfd
*abfd
, asection
*sec
,
3545 bfd_mach_o_section
*section
;
3547 flags
= bfd_get_section_flags (abfd
, sec
);
3548 section
= bfd_mach_o_get_mach_o_section (sec
);
3550 /* TODO: see if we should use the xlat system for doing this by
3551 preference and fall back to this for unknown sections. */
3553 if (flags
== SEC_NO_FLAGS
)
3555 /* Try to guess flags. */
3556 if (section
->flags
& BFD_MACH_O_S_ATTR_DEBUG
)
3557 flags
= SEC_DEBUGGING
;
3561 if ((section
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
3562 != BFD_MACH_O_S_ZEROFILL
)
3565 if (prot
& BFD_MACH_O_PROT_EXECUTE
)
3567 if (prot
& BFD_MACH_O_PROT_WRITE
)
3569 else if (prot
& BFD_MACH_O_PROT_READ
)
3570 flags
|= SEC_READONLY
;
3576 if ((flags
& SEC_DEBUGGING
) == 0)
3580 if (section
->offset
!= 0)
3581 flags
|= SEC_HAS_CONTENTS
;
3582 if (section
->nreloc
!= 0)
3585 bfd_set_section_flags (abfd
, sec
, flags
);
3587 sec
->vma
= section
->addr
;
3588 sec
->lma
= section
->addr
;
3589 sec
->size
= section
->size
;
3590 sec
->filepos
= section
->offset
;
3591 sec
->alignment_power
= section
->align
;
3592 sec
->segment_mark
= 0;
3593 sec
->reloc_count
= section
->nreloc
;
3594 sec
->rel_filepos
= section
->reloff
;
3598 bfd_mach_o_make_bfd_section (bfd
*abfd
,
3599 const unsigned char *segname
,
3600 const unsigned char *sectname
)
3605 bfd_mach_o_convert_section_name_to_bfd
3606 (abfd
, (const char *)segname
, (const char *)sectname
, &sname
, &flags
);
3610 return bfd_make_section_anyway_with_flags (abfd
, sname
, flags
);
3614 bfd_mach_o_read_section_32 (bfd
*abfd
, unsigned long prot
)
3616 struct mach_o_section_32_external raw
;
3618 bfd_mach_o_section
*section
;
3620 if (bfd_bread (&raw
, BFD_MACH_O_SECTION_SIZE
, abfd
)
3621 != BFD_MACH_O_SECTION_SIZE
)
3624 sec
= bfd_mach_o_make_bfd_section (abfd
, raw
.segname
, raw
.sectname
);
3628 section
= bfd_mach_o_get_mach_o_section (sec
);
3629 memcpy (section
->segname
, raw
.segname
, sizeof (raw
.segname
));
3630 section
->segname
[BFD_MACH_O_SEGNAME_SIZE
] = 0;
3631 memcpy (section
->sectname
, raw
.sectname
, sizeof (raw
.sectname
));
3632 section
->sectname
[BFD_MACH_O_SECTNAME_SIZE
] = 0;
3633 section
->addr
= bfd_h_get_32 (abfd
, raw
.addr
);
3634 section
->size
= bfd_h_get_32 (abfd
, raw
.size
);
3635 section
->offset
= bfd_h_get_32 (abfd
, raw
.offset
);
3636 section
->align
= bfd_h_get_32 (abfd
, raw
.align
);
3637 /* PR 17512: file: 0017eb76. */
3638 if (section
->align
> 64)
3641 (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, "
3642 "using 32 instead"), section
->align
);
3643 section
->align
= 32;
3645 section
->reloff
= bfd_h_get_32 (abfd
, raw
.reloff
);
3646 section
->nreloc
= bfd_h_get_32 (abfd
, raw
.nreloc
);
3647 section
->flags
= bfd_h_get_32 (abfd
, raw
.flags
);
3648 section
->reserved1
= bfd_h_get_32 (abfd
, raw
.reserved1
);
3649 section
->reserved2
= bfd_h_get_32 (abfd
, raw
.reserved2
);
3650 section
->reserved3
= 0;
3652 bfd_mach_o_init_section_from_mach_o (abfd
, sec
, prot
);
3658 bfd_mach_o_read_section_64 (bfd
*abfd
, unsigned long prot
)
3660 struct mach_o_section_64_external raw
;
3662 bfd_mach_o_section
*section
;
3664 if (bfd_bread (&raw
, BFD_MACH_O_SECTION_64_SIZE
, abfd
)
3665 != BFD_MACH_O_SECTION_64_SIZE
)
3668 sec
= bfd_mach_o_make_bfd_section (abfd
, raw
.segname
, raw
.sectname
);
3672 section
= bfd_mach_o_get_mach_o_section (sec
);
3673 memcpy (section
->segname
, raw
.segname
, sizeof (raw
.segname
));
3674 section
->segname
[BFD_MACH_O_SEGNAME_SIZE
] = 0;
3675 memcpy (section
->sectname
, raw
.sectname
, sizeof (raw
.sectname
));
3676 section
->sectname
[BFD_MACH_O_SECTNAME_SIZE
] = 0;
3677 section
->addr
= bfd_h_get_64 (abfd
, raw
.addr
);
3678 section
->size
= bfd_h_get_64 (abfd
, raw
.size
);
3679 section
->offset
= bfd_h_get_32 (abfd
, raw
.offset
);
3680 section
->align
= bfd_h_get_32 (abfd
, raw
.align
);
3681 if (section
->align
> 64)
3684 (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, "
3685 "using 32 instead"), section
->align
);
3686 section
->align
= 32;
3688 section
->reloff
= bfd_h_get_32 (abfd
, raw
.reloff
);
3689 section
->nreloc
= bfd_h_get_32 (abfd
, raw
.nreloc
);
3690 section
->flags
= bfd_h_get_32 (abfd
, raw
.flags
);
3691 section
->reserved1
= bfd_h_get_32 (abfd
, raw
.reserved1
);
3692 section
->reserved2
= bfd_h_get_32 (abfd
, raw
.reserved2
);
3693 section
->reserved3
= bfd_h_get_32 (abfd
, raw
.reserved3
);
3695 bfd_mach_o_init_section_from_mach_o (abfd
, sec
, prot
);
3701 bfd_mach_o_read_section (bfd
*abfd
, unsigned long prot
, unsigned int wide
)
3704 return bfd_mach_o_read_section_64 (abfd
, prot
);
3706 return bfd_mach_o_read_section_32 (abfd
, prot
);
3710 bfd_mach_o_read_symtab_symbol (bfd
*abfd
,
3711 bfd_mach_o_symtab_command
*sym
,
3712 bfd_mach_o_asymbol
*s
,
3715 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
3716 unsigned int wide
= mach_o_wide_p (&mdata
->header
);
3717 unsigned int symwidth
=
3718 wide
? BFD_MACH_O_NLIST_64_SIZE
: BFD_MACH_O_NLIST_SIZE
;
3719 unsigned int symoff
= sym
->symoff
+ (i
* symwidth
);
3720 struct mach_o_nlist_64_external raw
;
3721 unsigned char type
= -1;
3722 unsigned char section
= -1;
3724 symvalue value
= -1;
3725 unsigned long stroff
= -1;
3726 unsigned int symtype
= -1;
3728 BFD_ASSERT (sym
->strtab
!= NULL
);
3730 if (bfd_seek (abfd
, symoff
, SEEK_SET
) != 0
3731 || bfd_bread (&raw
, symwidth
, abfd
) != symwidth
)
3734 /* xgettext:c-format */
3735 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"),
3740 stroff
= bfd_h_get_32 (abfd
, raw
.n_strx
);
3741 type
= bfd_h_get_8 (abfd
, raw
.n_type
);
3742 symtype
= type
& BFD_MACH_O_N_TYPE
;
3743 section
= bfd_h_get_8 (abfd
, raw
.n_sect
);
3744 desc
= bfd_h_get_16 (abfd
, raw
.n_desc
);
3746 value
= bfd_h_get_64 (abfd
, raw
.n_value
);
3748 value
= bfd_h_get_32 (abfd
, raw
.n_value
);
3750 if (stroff
>= sym
->strsize
)
3753 /* xgettext:c-format */
3754 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"),
3760 s
->symbol
.the_bfd
= abfd
;
3761 s
->symbol
.name
= sym
->strtab
+ stroff
;
3762 s
->symbol
.value
= value
;
3763 s
->symbol
.flags
= 0x0;
3764 s
->symbol
.udata
.i
= i
;
3766 s
->n_sect
= section
;
3769 if (type
& BFD_MACH_O_N_STAB
)
3771 s
->symbol
.flags
|= BSF_DEBUGGING
;
3772 s
->symbol
.section
= bfd_und_section_ptr
;
3784 if ((section
> 0) && (section
<= mdata
->nsects
))
3786 s
->symbol
.section
= mdata
->sections
[section
- 1]->bfdsection
;
3788 s
->symbol
.value
- mdata
->sections
[section
- 1]->addr
;
3795 if (type
& (BFD_MACH_O_N_PEXT
| BFD_MACH_O_N_EXT
))
3796 s
->symbol
.flags
|= BSF_GLOBAL
;
3798 s
->symbol
.flags
|= BSF_LOCAL
;
3802 case BFD_MACH_O_N_UNDF
:
3803 if (type
== (BFD_MACH_O_N_UNDF
| BFD_MACH_O_N_EXT
)
3804 && s
->symbol
.value
!= 0)
3806 /* A common symbol. */
3807 s
->symbol
.section
= bfd_com_section_ptr
;
3808 s
->symbol
.flags
= BSF_NO_FLAGS
;
3812 s
->symbol
.section
= bfd_und_section_ptr
;
3813 if (s
->n_desc
& BFD_MACH_O_N_WEAK_REF
)
3814 s
->symbol
.flags
|= BSF_WEAK
;
3817 case BFD_MACH_O_N_PBUD
:
3818 s
->symbol
.section
= bfd_und_section_ptr
;
3820 case BFD_MACH_O_N_ABS
:
3821 s
->symbol
.section
= bfd_abs_section_ptr
;
3823 case BFD_MACH_O_N_SECT
:
3824 if ((section
> 0) && (section
<= mdata
->nsects
))
3826 s
->symbol
.section
= mdata
->sections
[section
- 1]->bfdsection
;
3828 s
->symbol
.value
- mdata
->sections
[section
- 1]->addr
;
3832 /* Mach-O uses 0 to mean "no section"; not an error. */
3836 /* xgettext:c-format */
3837 (_("bfd_mach_o_read_symtab_symbol: "
3838 "symbol \"%s\" specified invalid section %d (max %lu): "
3839 "setting to undefined"),
3840 s
->symbol
.name
, section
, mdata
->nsects
);
3842 s
->symbol
.section
= bfd_und_section_ptr
;
3845 case BFD_MACH_O_N_INDR
:
3846 /* FIXME: we don't follow the BFD convention as this indirect symbol
3847 won't be followed by the referenced one. This looks harmless
3848 unless we start using the linker. */
3849 s
->symbol
.flags
|= BSF_INDIRECT
;
3850 s
->symbol
.section
= bfd_ind_section_ptr
;
3851 s
->symbol
.value
= 0;
3855 /* xgettext:c-format */
3856 (_("bfd_mach_o_read_symtab_symbol: "
3857 "symbol \"%s\" specified invalid type field 0x%x: "
3858 "setting to undefined"), s
->symbol
.name
, symtype
);
3859 s
->symbol
.section
= bfd_und_section_ptr
;
3868 bfd_mach_o_read_symtab_strtab (bfd
*abfd
)
3870 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
3871 bfd_mach_o_symtab_command
*sym
= mdata
->symtab
;
3873 /* Fail if there is no symtab. */
3877 /* Success if already loaded. */
3881 if (abfd
->flags
& BFD_IN_MEMORY
)
3883 struct bfd_in_memory
*b
;
3885 b
= (struct bfd_in_memory
*) abfd
->iostream
;
3887 if ((sym
->stroff
+ sym
->strsize
) > b
->size
)
3889 bfd_set_error (bfd_error_file_truncated
);
3892 sym
->strtab
= (char *) b
->buffer
+ sym
->stroff
;
3896 /* See PR 21840 for a reproducer. */
3897 if ((sym
->strsize
+ 1) == 0)
3899 sym
->strtab
= bfd_alloc (abfd
, sym
->strsize
+ 1);
3900 if (sym
->strtab
== NULL
)
3903 if (bfd_seek (abfd
, sym
->stroff
, SEEK_SET
) != 0
3904 || bfd_bread (sym
->strtab
, sym
->strsize
, abfd
) != sym
->strsize
)
3906 /* PR 17512: file: 10888-1609-0.004. */
3907 bfd_release (abfd
, sym
->strtab
);
3909 bfd_set_error (bfd_error_file_truncated
);
3912 /* Zero terminate the string table. */
3913 sym
->strtab
[sym
->strsize
] = 0;
3920 bfd_mach_o_read_symtab_symbols (bfd
*abfd
)
3922 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
3923 bfd_mach_o_symtab_command
*sym
= mdata
->symtab
;
3926 if (sym
== NULL
|| sym
->symbols
)
3927 /* Return now if there are no symbols or if already loaded. */
3930 sym
->symbols
= bfd_alloc2 (abfd
, sym
->nsyms
, sizeof (bfd_mach_o_asymbol
));
3931 if (sym
->symbols
== NULL
)
3933 _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: "
3934 "unable to allocate memory for symbols"));
3939 if (!bfd_mach_o_read_symtab_strtab (abfd
))
3942 for (i
= 0; i
< sym
->nsyms
; i
++)
3943 if (!bfd_mach_o_read_symtab_symbol (abfd
, sym
, &sym
->symbols
[i
], i
))
3949 bfd_release (abfd
, sym
->symbols
);
3950 sym
->symbols
= NULL
;
3956 bfd_mach_o_i386_flavour_string (unsigned int flavour
)
3958 switch ((int) flavour
)
3960 case BFD_MACH_O_x86_THREAD_STATE32
: return "x86_THREAD_STATE32";
3961 case BFD_MACH_O_x86_FLOAT_STATE32
: return "x86_FLOAT_STATE32";
3962 case BFD_MACH_O_x86_EXCEPTION_STATE32
: return "x86_EXCEPTION_STATE32";
3963 case BFD_MACH_O_x86_THREAD_STATE64
: return "x86_THREAD_STATE64";
3964 case BFD_MACH_O_x86_FLOAT_STATE64
: return "x86_FLOAT_STATE64";
3965 case BFD_MACH_O_x86_EXCEPTION_STATE64
: return "x86_EXCEPTION_STATE64";
3966 case BFD_MACH_O_x86_THREAD_STATE
: return "x86_THREAD_STATE";
3967 case BFD_MACH_O_x86_FLOAT_STATE
: return "x86_FLOAT_STATE";
3968 case BFD_MACH_O_x86_EXCEPTION_STATE
: return "x86_EXCEPTION_STATE";
3969 case BFD_MACH_O_x86_DEBUG_STATE32
: return "x86_DEBUG_STATE32";
3970 case BFD_MACH_O_x86_DEBUG_STATE64
: return "x86_DEBUG_STATE64";
3971 case BFD_MACH_O_x86_DEBUG_STATE
: return "x86_DEBUG_STATE";
3972 case BFD_MACH_O_x86_THREAD_STATE_NONE
: return "x86_THREAD_STATE_NONE";
3973 default: return "UNKNOWN";
3978 bfd_mach_o_ppc_flavour_string (unsigned int flavour
)
3980 switch ((int) flavour
)
3982 case BFD_MACH_O_PPC_THREAD_STATE
: return "PPC_THREAD_STATE";
3983 case BFD_MACH_O_PPC_FLOAT_STATE
: return "PPC_FLOAT_STATE";
3984 case BFD_MACH_O_PPC_EXCEPTION_STATE
: return "PPC_EXCEPTION_STATE";
3985 case BFD_MACH_O_PPC_VECTOR_STATE
: return "PPC_VECTOR_STATE";
3986 case BFD_MACH_O_PPC_THREAD_STATE64
: return "PPC_THREAD_STATE64";
3987 case BFD_MACH_O_PPC_EXCEPTION_STATE64
: return "PPC_EXCEPTION_STATE64";
3988 default: return "UNKNOWN";
3993 bfd_mach_o_read_dylinker (bfd
*abfd
, bfd_mach_o_load_command
*command
)
3995 bfd_mach_o_dylinker_command
*cmd
= &command
->command
.dylinker
;
3996 struct mach_o_str_command_external raw
;
3997 unsigned int nameoff
;
3998 unsigned int namelen
;
4000 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4003 nameoff
= bfd_h_get_32 (abfd
, raw
.str
);
4005 cmd
->name_offset
= nameoff
;
4006 namelen
= command
->len
- nameoff
;
4007 nameoff
+= command
->offset
;
4008 cmd
->name_str
= bfd_alloc (abfd
, namelen
);
4009 if (cmd
->name_str
== NULL
)
4011 if (bfd_seek (abfd
, nameoff
, SEEK_SET
) != 0
4012 || bfd_bread (cmd
->name_str
, namelen
, abfd
) != namelen
)
4018 bfd_mach_o_read_dylib (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4020 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4021 bfd_mach_o_dylib_command
*cmd
= &command
->command
.dylib
;
4022 struct mach_o_dylib_command_external raw
;
4023 unsigned int nameoff
;
4024 unsigned int namelen
;
4026 switch (command
->type
)
4028 case BFD_MACH_O_LC_LOAD_DYLIB
:
4029 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB
:
4030 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB
:
4031 case BFD_MACH_O_LC_ID_DYLIB
:
4032 case BFD_MACH_O_LC_REEXPORT_DYLIB
:
4033 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB
:
4040 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4043 nameoff
= bfd_h_get_32 (abfd
, raw
.name
);
4044 cmd
->timestamp
= bfd_h_get_32 (abfd
, raw
.timestamp
);
4045 cmd
->current_version
= bfd_h_get_32 (abfd
, raw
.current_version
);
4046 cmd
->compatibility_version
= bfd_h_get_32 (abfd
, raw
.compatibility_version
);
4048 cmd
->name_offset
= command
->offset
+ nameoff
;
4049 namelen
= command
->len
- nameoff
;
4050 cmd
->name_str
= bfd_alloc (abfd
, namelen
);
4051 if (cmd
->name_str
== NULL
)
4053 if (bfd_seek (abfd
, mdata
->hdr_offset
+ cmd
->name_offset
, SEEK_SET
) != 0
4054 || bfd_bread (cmd
->name_str
, namelen
, abfd
) != namelen
)
4060 bfd_mach_o_read_prebound_dylib (bfd
*abfd
,
4061 bfd_mach_o_load_command
*command
)
4063 bfd_mach_o_prebound_dylib_command
*cmd
= &command
->command
.prebound_dylib
;
4064 struct mach_o_prebound_dylib_command_external raw
;
4065 unsigned int nameoff
;
4066 unsigned int modoff
;
4067 unsigned int str_len
;
4070 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4073 nameoff
= bfd_h_get_32 (abfd
, raw
.name
);
4074 modoff
= bfd_h_get_32 (abfd
, raw
.linked_modules
);
4075 if (nameoff
> command
->len
|| modoff
> command
->len
)
4078 str_len
= command
->len
- sizeof (raw
);
4079 str
= bfd_alloc (abfd
, str_len
);
4082 if (bfd_bread (str
, str_len
, abfd
) != str_len
)
4085 cmd
->name_offset
= command
->offset
+ nameoff
;
4086 cmd
->nmodules
= bfd_h_get_32 (abfd
, raw
.nmodules
);
4087 cmd
->linked_modules_offset
= command
->offset
+ modoff
;
4089 cmd
->name_str
= (char *)str
+ nameoff
- (sizeof (raw
) + BFD_MACH_O_LC_SIZE
);
4090 cmd
->linked_modules
= str
+ modoff
- (sizeof (raw
) + BFD_MACH_O_LC_SIZE
);
4095 bfd_mach_o_read_prebind_cksum (bfd
*abfd
,
4096 bfd_mach_o_load_command
*command
)
4098 bfd_mach_o_prebind_cksum_command
*cmd
= &command
->command
.prebind_cksum
;
4099 struct mach_o_prebind_cksum_command_external raw
;
4101 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4104 cmd
->cksum
= bfd_get_32 (abfd
, raw
.cksum
);
4109 bfd_mach_o_read_twolevel_hints (bfd
*abfd
,
4110 bfd_mach_o_load_command
*command
)
4112 bfd_mach_o_twolevel_hints_command
*cmd
= &command
->command
.twolevel_hints
;
4113 struct mach_o_twolevel_hints_command_external raw
;
4115 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4118 cmd
->offset
= bfd_get_32 (abfd
, raw
.offset
);
4119 cmd
->nhints
= bfd_get_32 (abfd
, raw
.nhints
);
4124 bfd_mach_o_read_fvmlib (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4126 bfd_mach_o_fvmlib_command
*fvm
= &command
->command
.fvmlib
;
4127 struct mach_o_fvmlib_command_external raw
;
4128 unsigned int nameoff
;
4129 unsigned int namelen
;
4131 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4134 nameoff
= bfd_h_get_32 (abfd
, raw
.name
);
4135 fvm
->minor_version
= bfd_h_get_32 (abfd
, raw
.minor_version
);
4136 fvm
->header_addr
= bfd_h_get_32 (abfd
, raw
.header_addr
);
4138 fvm
->name_offset
= command
->offset
+ nameoff
;
4139 namelen
= command
->len
- nameoff
;
4140 fvm
->name_str
= bfd_alloc (abfd
, namelen
);
4141 if (fvm
->name_str
== NULL
)
4143 if (bfd_seek (abfd
, fvm
->name_offset
, SEEK_SET
) != 0
4144 || bfd_bread (fvm
->name_str
, namelen
, abfd
) != namelen
)
4150 bfd_mach_o_read_thread (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4152 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4153 bfd_mach_o_thread_command
*cmd
= &command
->command
.thread
;
4154 unsigned int offset
;
4155 unsigned int nflavours
;
4158 BFD_ASSERT ((command
->type
== BFD_MACH_O_LC_THREAD
)
4159 || (command
->type
== BFD_MACH_O_LC_UNIXTHREAD
));
4161 /* Count the number of threads. */
4164 while (offset
!= command
->len
)
4166 struct mach_o_thread_command_external raw
;
4168 if (offset
>= command
->len
)
4171 if (bfd_seek (abfd
, command
->offset
+ offset
, SEEK_SET
) != 0
4172 || bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4175 offset
+= sizeof (raw
) + bfd_h_get_32 (abfd
, raw
.count
) * 4;
4179 /* Allocate threads. */
4180 cmd
->flavours
= bfd_alloc2
4181 (abfd
, nflavours
, sizeof (bfd_mach_o_thread_flavour
));
4182 if (cmd
->flavours
== NULL
)
4184 cmd
->nflavours
= nflavours
;
4188 while (offset
!= command
->len
)
4190 struct mach_o_thread_command_external raw
;
4192 if (offset
>= command
->len
)
4195 if (nflavours
>= cmd
->nflavours
)
4198 if (bfd_seek (abfd
, command
->offset
+ offset
, SEEK_SET
) != 0
4199 || bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4202 cmd
->flavours
[nflavours
].flavour
= bfd_h_get_32 (abfd
, raw
.flavour
);
4203 cmd
->flavours
[nflavours
].offset
= command
->offset
+ offset
+ sizeof (raw
);
4204 cmd
->flavours
[nflavours
].size
= bfd_h_get_32 (abfd
, raw
.count
) * 4;
4205 offset
+= cmd
->flavours
[nflavours
].size
+ sizeof (raw
);
4209 for (i
= 0; i
< nflavours
; i
++)
4212 unsigned int snamelen
;
4214 const char *flavourstr
;
4215 const char *prefix
= "LC_THREAD";
4218 switch (mdata
->header
.cputype
)
4220 case BFD_MACH_O_CPU_TYPE_POWERPC
:
4221 case BFD_MACH_O_CPU_TYPE_POWERPC_64
:
4223 bfd_mach_o_ppc_flavour_string (cmd
->flavours
[i
].flavour
);
4225 case BFD_MACH_O_CPU_TYPE_I386
:
4226 case BFD_MACH_O_CPU_TYPE_X86_64
:
4228 bfd_mach_o_i386_flavour_string (cmd
->flavours
[i
].flavour
);
4231 flavourstr
= "UNKNOWN_ARCHITECTURE";
4235 snamelen
= strlen (prefix
) + 1 + 20 + 1 + strlen (flavourstr
) + 1;
4236 sname
= bfd_alloc (abfd
, snamelen
);
4242 sprintf (sname
, "%s.%s.%u", prefix
, flavourstr
, j
);
4243 if (bfd_get_section_by_name (abfd
, sname
) == NULL
)
4248 bfdsec
= bfd_make_section_with_flags (abfd
, sname
, SEC_HAS_CONTENTS
);
4252 bfdsec
->size
= cmd
->flavours
[i
].size
;
4253 bfdsec
->filepos
= cmd
->flavours
[i
].offset
;
4254 bfdsec
->alignment_power
= 0x0;
4256 cmd
->section
= bfdsec
;
4263 bfd_mach_o_read_dysymtab (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4265 bfd_mach_o_dysymtab_command
*cmd
= &command
->command
.dysymtab
;
4266 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4268 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_DYSYMTAB
);
4271 struct mach_o_dysymtab_command_external raw
;
4273 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4276 cmd
->ilocalsym
= bfd_h_get_32 (abfd
, raw
.ilocalsym
);
4277 cmd
->nlocalsym
= bfd_h_get_32 (abfd
, raw
.nlocalsym
);
4278 cmd
->iextdefsym
= bfd_h_get_32 (abfd
, raw
.iextdefsym
);
4279 cmd
->nextdefsym
= bfd_h_get_32 (abfd
, raw
.nextdefsym
);
4280 cmd
->iundefsym
= bfd_h_get_32 (abfd
, raw
.iundefsym
);
4281 cmd
->nundefsym
= bfd_h_get_32 (abfd
, raw
.nundefsym
);
4282 cmd
->tocoff
= bfd_h_get_32 (abfd
, raw
.tocoff
);
4283 cmd
->ntoc
= bfd_h_get_32 (abfd
, raw
.ntoc
);
4284 cmd
->modtaboff
= bfd_h_get_32 (abfd
, raw
.modtaboff
);
4285 cmd
->nmodtab
= bfd_h_get_32 (abfd
, raw
.nmodtab
);
4286 cmd
->extrefsymoff
= bfd_h_get_32 (abfd
, raw
.extrefsymoff
);
4287 cmd
->nextrefsyms
= bfd_h_get_32 (abfd
, raw
.nextrefsyms
);
4288 cmd
->indirectsymoff
= bfd_h_get_32 (abfd
, raw
.indirectsymoff
);
4289 cmd
->nindirectsyms
= bfd_h_get_32 (abfd
, raw
.nindirectsyms
);
4290 cmd
->extreloff
= bfd_h_get_32 (abfd
, raw
.extreloff
);
4291 cmd
->nextrel
= bfd_h_get_32 (abfd
, raw
.nextrel
);
4292 cmd
->locreloff
= bfd_h_get_32 (abfd
, raw
.locreloff
);
4293 cmd
->nlocrel
= bfd_h_get_32 (abfd
, raw
.nlocrel
);
4296 if (cmd
->nmodtab
!= 0)
4299 int wide
= bfd_mach_o_wide_p (abfd
);
4300 unsigned int module_len
= wide
? 56 : 52;
4303 bfd_alloc2 (abfd
, cmd
->nmodtab
, sizeof (bfd_mach_o_dylib_module
));
4304 if (cmd
->dylib_module
== NULL
)
4307 if (bfd_seek (abfd
, cmd
->modtaboff
, SEEK_SET
) != 0)
4310 for (i
= 0; i
< cmd
->nmodtab
; i
++)
4312 bfd_mach_o_dylib_module
*module
= &cmd
->dylib_module
[i
];
4314 unsigned char buf
[56];
4316 if (bfd_bread ((void *) buf
, module_len
, abfd
) != module_len
)
4319 module
->module_name_idx
= bfd_h_get_32 (abfd
, buf
+ 0);
4320 module
->iextdefsym
= bfd_h_get_32 (abfd
, buf
+ 4);
4321 module
->nextdefsym
= bfd_h_get_32 (abfd
, buf
+ 8);
4322 module
->irefsym
= bfd_h_get_32 (abfd
, buf
+ 12);
4323 module
->nrefsym
= bfd_h_get_32 (abfd
, buf
+ 16);
4324 module
->ilocalsym
= bfd_h_get_32 (abfd
, buf
+ 20);
4325 module
->nlocalsym
= bfd_h_get_32 (abfd
, buf
+ 24);
4326 module
->iextrel
= bfd_h_get_32 (abfd
, buf
+ 28);
4327 module
->nextrel
= bfd_h_get_32 (abfd
, buf
+ 32);
4328 v
= bfd_h_get_32 (abfd
, buf
+36);
4329 module
->iinit
= v
& 0xffff;
4330 module
->iterm
= (v
>> 16) & 0xffff;
4331 v
= bfd_h_get_32 (abfd
, buf
+ 40);
4332 module
->ninit
= v
& 0xffff;
4333 module
->nterm
= (v
>> 16) & 0xffff;
4336 module
->objc_module_info_size
= bfd_h_get_32 (abfd
, buf
+ 44);
4337 module
->objc_module_info_addr
= bfd_h_get_64 (abfd
, buf
+ 48);
4341 module
->objc_module_info_addr
= bfd_h_get_32 (abfd
, buf
+ 44);
4342 module
->objc_module_info_size
= bfd_h_get_32 (abfd
, buf
+ 48);
4351 cmd
->dylib_toc
= bfd_alloc2
4352 (abfd
, cmd
->ntoc
, sizeof (bfd_mach_o_dylib_table_of_content
));
4353 if (cmd
->dylib_toc
== NULL
)
4356 if (bfd_seek (abfd
, cmd
->tocoff
, SEEK_SET
) != 0)
4359 for (i
= 0; i
< cmd
->ntoc
; i
++)
4361 struct mach_o_dylib_table_of_contents_external raw
;
4362 bfd_mach_o_dylib_table_of_content
*toc
= &cmd
->dylib_toc
[i
];
4364 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4367 toc
->symbol_index
= bfd_h_get_32 (abfd
, raw
.symbol_index
);
4368 toc
->module_index
= bfd_h_get_32 (abfd
, raw
.module_index
);
4372 if (cmd
->nindirectsyms
!= 0)
4376 cmd
->indirect_syms
= bfd_alloc2
4377 (abfd
, cmd
->nindirectsyms
, sizeof (unsigned int));
4378 if (cmd
->indirect_syms
== NULL
)
4381 if (bfd_seek (abfd
, cmd
->indirectsymoff
, SEEK_SET
) != 0)
4384 for (i
= 0; i
< cmd
->nindirectsyms
; i
++)
4386 unsigned char raw
[4];
4387 unsigned int *is
= &cmd
->indirect_syms
[i
];
4389 if (bfd_bread (raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4392 *is
= bfd_h_get_32 (abfd
, raw
);
4396 if (cmd
->nextrefsyms
!= 0)
4401 cmd
->ext_refs
= bfd_alloc2
4402 (abfd
, cmd
->nextrefsyms
, sizeof (bfd_mach_o_dylib_reference
));
4403 if (cmd
->ext_refs
== NULL
)
4406 if (bfd_seek (abfd
, cmd
->extrefsymoff
, SEEK_SET
) != 0)
4409 for (i
= 0; i
< cmd
->nextrefsyms
; i
++)
4411 unsigned char raw
[4];
4412 bfd_mach_o_dylib_reference
*ref
= &cmd
->ext_refs
[i
];
4414 if (bfd_bread (raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4417 /* Fields isym and flags are written as bit-fields, thus we need
4418 a specific processing for endianness. */
4419 v
= bfd_h_get_32 (abfd
, raw
);
4420 if (bfd_big_endian (abfd
))
4422 ref
->isym
= (v
>> 8) & 0xffffff;
4423 ref
->flags
= v
& 0xff;
4427 ref
->isym
= v
& 0xffffff;
4428 ref
->flags
= (v
>> 24) & 0xff;
4433 if (mdata
->dysymtab
)
4435 mdata
->dysymtab
= cmd
;
4441 bfd_mach_o_read_symtab (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4443 bfd_mach_o_symtab_command
*symtab
= &command
->command
.symtab
;
4444 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4445 struct mach_o_symtab_command_external raw
;
4447 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SYMTAB
);
4449 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4452 symtab
->symoff
= bfd_h_get_32 (abfd
, raw
.symoff
);
4453 symtab
->nsyms
= bfd_h_get_32 (abfd
, raw
.nsyms
);
4454 symtab
->stroff
= bfd_h_get_32 (abfd
, raw
.stroff
);
4455 symtab
->strsize
= bfd_h_get_32 (abfd
, raw
.strsize
);
4456 symtab
->symbols
= NULL
;
4457 symtab
->strtab
= NULL
;
4459 if (symtab
->nsyms
!= 0)
4460 abfd
->flags
|= HAS_SYMS
;
4464 mdata
->symtab
= symtab
;
4469 bfd_mach_o_read_uuid (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4471 bfd_mach_o_uuid_command
*cmd
= &command
->command
.uuid
;
4473 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_UUID
);
4475 if (bfd_bread (cmd
->uuid
, 16, abfd
) != 16)
4482 bfd_mach_o_read_linkedit (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4484 bfd_mach_o_linkedit_command
*cmd
= &command
->command
.linkedit
;
4485 struct mach_o_linkedit_data_command_external raw
;
4487 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4490 cmd
->dataoff
= bfd_get_32 (abfd
, raw
.dataoff
);
4491 cmd
->datasize
= bfd_get_32 (abfd
, raw
.datasize
);
4496 bfd_mach_o_read_str (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4498 bfd_mach_o_str_command
*cmd
= &command
->command
.str
;
4499 struct mach_o_str_command_external raw
;
4502 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4505 off
= bfd_get_32 (abfd
, raw
.str
);
4506 cmd
->stroff
= command
->offset
+ off
;
4507 cmd
->str_len
= command
->len
- off
;
4508 cmd
->str
= bfd_alloc (abfd
, cmd
->str_len
);
4509 if (cmd
->str
== NULL
)
4511 if (bfd_seek (abfd
, cmd
->stroff
, SEEK_SET
) != 0
4512 || bfd_bread ((void *) cmd
->str
, cmd
->str_len
, abfd
) != cmd
->str_len
)
4517 static unsigned char *
4518 bfd_mach_o_alloc_and_read (bfd
*abfd
, unsigned int off
, unsigned int size
)
4522 buf
= bfd_alloc (abfd
, size
);
4525 if (bfd_seek (abfd
, off
, SEEK_SET
) != 0
4526 || bfd_bread (buf
, size
, abfd
) != size
)
4532 bfd_mach_o_read_dyld_content (bfd
*abfd
, bfd_mach_o_dyld_info_command
*cmd
)
4534 /* Read rebase content. */
4535 if (cmd
->rebase_content
== NULL
&& cmd
->rebase_size
!= 0)
4537 cmd
->rebase_content
=
4538 bfd_mach_o_alloc_and_read (abfd
, cmd
->rebase_off
, cmd
->rebase_size
);
4539 if (cmd
->rebase_content
== NULL
)
4543 /* Read bind content. */
4544 if (cmd
->bind_content
== NULL
&& cmd
->bind_size
!= 0)
4547 bfd_mach_o_alloc_and_read (abfd
, cmd
->bind_off
, cmd
->bind_size
);
4548 if (cmd
->bind_content
== NULL
)
4552 /* Read weak bind content. */
4553 if (cmd
->weak_bind_content
== NULL
&& cmd
->weak_bind_size
!= 0)
4555 cmd
->weak_bind_content
= bfd_mach_o_alloc_and_read
4556 (abfd
, cmd
->weak_bind_off
, cmd
->weak_bind_size
);
4557 if (cmd
->weak_bind_content
== NULL
)
4561 /* Read lazy bind content. */
4562 if (cmd
->lazy_bind_content
== NULL
&& cmd
->lazy_bind_size
!= 0)
4564 cmd
->lazy_bind_content
= bfd_mach_o_alloc_and_read
4565 (abfd
, cmd
->lazy_bind_off
, cmd
->lazy_bind_size
);
4566 if (cmd
->lazy_bind_content
== NULL
)
4570 /* Read export content. */
4571 if (cmd
->export_content
== NULL
&& cmd
->export_size
!= 0)
4573 cmd
->export_content
= bfd_mach_o_alloc_and_read
4574 (abfd
, cmd
->export_off
, cmd
->export_size
);
4575 if (cmd
->export_content
== NULL
)
4583 bfd_mach_o_read_dyld_info (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4585 bfd_mach_o_dyld_info_command
*cmd
= &command
->command
.dyld_info
;
4586 struct mach_o_dyld_info_command_external raw
;
4588 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4591 cmd
->rebase_off
= bfd_get_32 (abfd
, raw
.rebase_off
);
4592 cmd
->rebase_size
= bfd_get_32 (abfd
, raw
.rebase_size
);
4593 cmd
->rebase_content
= NULL
;
4594 cmd
->bind_off
= bfd_get_32 (abfd
, raw
.bind_off
);
4595 cmd
->bind_size
= bfd_get_32 (abfd
, raw
.bind_size
);
4596 cmd
->bind_content
= NULL
;
4597 cmd
->weak_bind_off
= bfd_get_32 (abfd
, raw
.weak_bind_off
);
4598 cmd
->weak_bind_size
= bfd_get_32 (abfd
, raw
.weak_bind_size
);
4599 cmd
->weak_bind_content
= NULL
;
4600 cmd
->lazy_bind_off
= bfd_get_32 (abfd
, raw
.lazy_bind_off
);
4601 cmd
->lazy_bind_size
= bfd_get_32 (abfd
, raw
.lazy_bind_size
);
4602 cmd
->lazy_bind_content
= NULL
;
4603 cmd
->export_off
= bfd_get_32 (abfd
, raw
.export_off
);
4604 cmd
->export_size
= bfd_get_32 (abfd
, raw
.export_size
);
4605 cmd
->export_content
= NULL
;
4610 bfd_mach_o_read_version_min (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4612 bfd_mach_o_version_min_command
*cmd
= &command
->command
.version_min
;
4613 struct mach_o_version_min_command_external raw
;
4615 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4618 cmd
->version
= bfd_get_32 (abfd
, raw
.version
);
4619 cmd
->sdk
= bfd_get_32 (abfd
, raw
.sdk
);
4624 bfd_mach_o_read_encryption_info (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4626 bfd_mach_o_encryption_info_command
*cmd
= &command
->command
.encryption_info
;
4627 struct mach_o_encryption_info_command_external raw
;
4629 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4632 cmd
->cryptoff
= bfd_get_32 (abfd
, raw
.cryptoff
);
4633 cmd
->cryptsize
= bfd_get_32 (abfd
, raw
.cryptsize
);
4634 cmd
->cryptid
= bfd_get_32 (abfd
, raw
.cryptid
);
4639 bfd_mach_o_read_encryption_info_64 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4641 bfd_mach_o_encryption_info_command
*cmd
= &command
->command
.encryption_info
;
4642 struct mach_o_encryption_info_64_command_external raw
;
4644 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4647 cmd
->cryptoff
= bfd_get_32 (abfd
, raw
.cryptoff
);
4648 cmd
->cryptsize
= bfd_get_32 (abfd
, raw
.cryptsize
);
4649 cmd
->cryptid
= bfd_get_32 (abfd
, raw
.cryptid
);
4654 bfd_mach_o_read_main (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4656 bfd_mach_o_main_command
*cmd
= &command
->command
.main
;
4657 struct mach_o_entry_point_command_external raw
;
4659 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4662 cmd
->entryoff
= bfd_get_64 (abfd
, raw
.entryoff
);
4663 cmd
->stacksize
= bfd_get_64 (abfd
, raw
.stacksize
);
4668 bfd_mach_o_read_source_version (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4670 bfd_mach_o_source_version_command
*cmd
= &command
->command
.source_version
;
4671 struct mach_o_source_version_command_external raw
;
4674 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4677 ver
= bfd_get_64 (abfd
, raw
.version
);
4678 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4679 generates warnings) in case of the host doesn't support 64 bit
4681 cmd
->e
= ver
& 0x3ff;
4683 cmd
->d
= ver
& 0x3ff;
4685 cmd
->c
= ver
& 0x3ff;
4687 cmd
->b
= ver
& 0x3ff;
4689 cmd
->a
= ver
& 0xffffff;
4694 bfd_mach_o_read_note (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4696 bfd_mach_o_note_command
*cmd
= &command
->command
.note
;
4697 struct mach_o_note_command_external raw
;
4699 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4702 memcpy (cmd
->data_owner
, raw
.data_owner
, 16);
4703 cmd
->offset
= bfd_get_64 (abfd
, raw
.offset
);
4704 cmd
->size
= bfd_get_64 (abfd
, raw
.size
);
4709 bfd_mach_o_read_build_version (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4711 bfd_mach_o_build_version_command
*cmd
= &command
->command
.build_version
;
4712 struct mach_o_build_version_command_external raw
;
4714 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4717 cmd
->platform
= bfd_get_32 (abfd
, raw
.platform
);
4718 cmd
->minos
= bfd_get_32 (abfd
, raw
.minos
);
4719 cmd
->sdk
= bfd_get_32 (abfd
, raw
.sdk
);
4720 cmd
->ntools
= bfd_get_32 (abfd
, raw
.ntools
);
4725 bfd_mach_o_read_segment (bfd
*abfd
,
4726 bfd_mach_o_load_command
*command
,
4729 bfd_mach_o_segment_command
*seg
= &command
->command
.segment
;
4734 struct mach_o_segment_command_64_external raw
;
4736 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SEGMENT_64
);
4738 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4741 memcpy (seg
->segname
, raw
.segname
, 16);
4742 seg
->segname
[16] = '\0';
4744 seg
->vmaddr
= bfd_h_get_64 (abfd
, raw
.vmaddr
);
4745 seg
->vmsize
= bfd_h_get_64 (abfd
, raw
.vmsize
);
4746 seg
->fileoff
= bfd_h_get_64 (abfd
, raw
.fileoff
);
4747 seg
->filesize
= bfd_h_get_64 (abfd
, raw
.filesize
);
4748 seg
->maxprot
= bfd_h_get_32 (abfd
, raw
.maxprot
);
4749 seg
->initprot
= bfd_h_get_32 (abfd
, raw
.initprot
);
4750 seg
->nsects
= bfd_h_get_32 (abfd
, raw
.nsects
);
4751 seg
->flags
= bfd_h_get_32 (abfd
, raw
.flags
);
4755 struct mach_o_segment_command_32_external raw
;
4757 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SEGMENT
);
4759 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4762 memcpy (seg
->segname
, raw
.segname
, 16);
4763 seg
->segname
[16] = '\0';
4765 seg
->vmaddr
= bfd_h_get_32 (abfd
, raw
.vmaddr
);
4766 seg
->vmsize
= bfd_h_get_32 (abfd
, raw
.vmsize
);
4767 seg
->fileoff
= bfd_h_get_32 (abfd
, raw
.fileoff
);
4768 seg
->filesize
= bfd_h_get_32 (abfd
, raw
.filesize
);
4769 seg
->maxprot
= bfd_h_get_32 (abfd
, raw
.maxprot
);
4770 seg
->initprot
= bfd_h_get_32 (abfd
, raw
.initprot
);
4771 seg
->nsects
= bfd_h_get_32 (abfd
, raw
.nsects
);
4772 seg
->flags
= bfd_h_get_32 (abfd
, raw
.flags
);
4774 seg
->sect_head
= NULL
;
4775 seg
->sect_tail
= NULL
;
4777 for (i
= 0; i
< seg
->nsects
; i
++)
4781 sec
= bfd_mach_o_read_section (abfd
, seg
->initprot
, wide
);
4785 bfd_mach_o_append_section_to_segment
4786 (seg
, bfd_mach_o_get_mach_o_section (sec
));
4793 bfd_mach_o_read_segment_32 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4795 return bfd_mach_o_read_segment (abfd
, command
, 0);
4799 bfd_mach_o_read_segment_64 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4801 return bfd_mach_o_read_segment (abfd
, command
, 1);
4805 bfd_mach_o_read_command (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4807 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4808 struct mach_o_load_command_external raw
;
4811 /* Read command type and length. */
4812 if (bfd_seek (abfd
, mdata
->hdr_offset
+ command
->offset
, SEEK_SET
) != 0
4813 || bfd_bread (&raw
, BFD_MACH_O_LC_SIZE
, abfd
) != BFD_MACH_O_LC_SIZE
)
4816 cmd
= bfd_h_get_32 (abfd
, raw
.cmd
);
4817 command
->type
= cmd
& ~BFD_MACH_O_LC_REQ_DYLD
;
4818 command
->type_required
= cmd
& BFD_MACH_O_LC_REQ_DYLD
? TRUE
: FALSE
;
4819 command
->len
= bfd_h_get_32 (abfd
, raw
.cmdsize
);
4821 switch (command
->type
)
4823 case BFD_MACH_O_LC_SEGMENT
:
4824 if (!bfd_mach_o_read_segment_32 (abfd
, command
))
4827 case BFD_MACH_O_LC_SEGMENT_64
:
4828 if (!bfd_mach_o_read_segment_64 (abfd
, command
))
4831 case BFD_MACH_O_LC_SYMTAB
:
4832 if (!bfd_mach_o_read_symtab (abfd
, command
))
4835 case BFD_MACH_O_LC_SYMSEG
:
4837 case BFD_MACH_O_LC_THREAD
:
4838 case BFD_MACH_O_LC_UNIXTHREAD
:
4839 if (!bfd_mach_o_read_thread (abfd
, command
))
4842 case BFD_MACH_O_LC_LOAD_DYLINKER
:
4843 case BFD_MACH_O_LC_ID_DYLINKER
:
4844 case BFD_MACH_O_LC_DYLD_ENVIRONMENT
:
4845 if (!bfd_mach_o_read_dylinker (abfd
, command
))
4848 case BFD_MACH_O_LC_LOAD_DYLIB
:
4849 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB
:
4850 case BFD_MACH_O_LC_ID_DYLIB
:
4851 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB
:
4852 case BFD_MACH_O_LC_REEXPORT_DYLIB
:
4853 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB
:
4854 if (!bfd_mach_o_read_dylib (abfd
, command
))
4857 case BFD_MACH_O_LC_PREBOUND_DYLIB
:
4858 if (!bfd_mach_o_read_prebound_dylib (abfd
, command
))
4861 case BFD_MACH_O_LC_LOADFVMLIB
:
4862 case BFD_MACH_O_LC_IDFVMLIB
:
4863 if (!bfd_mach_o_read_fvmlib (abfd
, command
))
4866 case BFD_MACH_O_LC_IDENT
:
4867 case BFD_MACH_O_LC_FVMFILE
:
4868 case BFD_MACH_O_LC_PREPAGE
:
4869 case BFD_MACH_O_LC_ROUTINES
:
4870 case BFD_MACH_O_LC_ROUTINES_64
:
4872 case BFD_MACH_O_LC_SUB_FRAMEWORK
:
4873 case BFD_MACH_O_LC_SUB_UMBRELLA
:
4874 case BFD_MACH_O_LC_SUB_LIBRARY
:
4875 case BFD_MACH_O_LC_SUB_CLIENT
:
4876 case BFD_MACH_O_LC_RPATH
:
4877 if (!bfd_mach_o_read_str (abfd
, command
))
4880 case BFD_MACH_O_LC_DYSYMTAB
:
4881 if (!bfd_mach_o_read_dysymtab (abfd
, command
))
4884 case BFD_MACH_O_LC_PREBIND_CKSUM
:
4885 if (!bfd_mach_o_read_prebind_cksum (abfd
, command
))
4888 case BFD_MACH_O_LC_TWOLEVEL_HINTS
:
4889 if (!bfd_mach_o_read_twolevel_hints (abfd
, command
))
4892 case BFD_MACH_O_LC_UUID
:
4893 if (!bfd_mach_o_read_uuid (abfd
, command
))
4896 case BFD_MACH_O_LC_CODE_SIGNATURE
:
4897 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO
:
4898 case BFD_MACH_O_LC_FUNCTION_STARTS
:
4899 case BFD_MACH_O_LC_DATA_IN_CODE
:
4900 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS
:
4901 case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT
:
4902 if (!bfd_mach_o_read_linkedit (abfd
, command
))
4905 case BFD_MACH_O_LC_ENCRYPTION_INFO
:
4906 if (!bfd_mach_o_read_encryption_info (abfd
, command
))
4909 case BFD_MACH_O_LC_ENCRYPTION_INFO_64
:
4910 if (!bfd_mach_o_read_encryption_info_64 (abfd
, command
))
4913 case BFD_MACH_O_LC_DYLD_INFO
:
4914 if (!bfd_mach_o_read_dyld_info (abfd
, command
))
4917 case BFD_MACH_O_LC_VERSION_MIN_MACOSX
:
4918 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS
:
4919 case BFD_MACH_O_LC_VERSION_MIN_WATCHOS
:
4920 case BFD_MACH_O_LC_VERSION_MIN_TVOS
:
4921 if (!bfd_mach_o_read_version_min (abfd
, command
))
4924 case BFD_MACH_O_LC_MAIN
:
4925 if (!bfd_mach_o_read_main (abfd
, command
))
4928 case BFD_MACH_O_LC_SOURCE_VERSION
:
4929 if (!bfd_mach_o_read_source_version (abfd
, command
))
4932 case BFD_MACH_O_LC_LINKER_OPTIONS
:
4934 case BFD_MACH_O_LC_NOTE
:
4935 if (!bfd_mach_o_read_note (abfd
, command
))
4938 case BFD_MACH_O_LC_BUILD_VERSION
:
4939 if (!bfd_mach_o_read_build_version (abfd
, command
))
4944 _bfd_error_handler (_("%pB: unknown load command %#x"),
4945 abfd
, command
->type
);
4953 bfd_mach_o_flatten_sections (bfd
*abfd
)
4955 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4956 bfd_mach_o_load_command
*cmd
;
4959 /* Count total number of sections. */
4962 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
4964 if (cmd
->type
== BFD_MACH_O_LC_SEGMENT
4965 || cmd
->type
== BFD_MACH_O_LC_SEGMENT_64
)
4967 bfd_mach_o_segment_command
*seg
= &cmd
->command
.segment
;
4969 mdata
->nsects
+= seg
->nsects
;
4973 /* Allocate sections array. */
4974 mdata
->sections
= bfd_alloc2 (abfd
,
4975 mdata
->nsects
, sizeof (bfd_mach_o_section
*));
4977 /* Fill the array. */
4980 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
4982 if (cmd
->type
== BFD_MACH_O_LC_SEGMENT
4983 || cmd
->type
== BFD_MACH_O_LC_SEGMENT_64
)
4985 bfd_mach_o_segment_command
*seg
= &cmd
->command
.segment
;
4986 bfd_mach_o_section
*sec
;
4988 BFD_ASSERT (csect
+ seg
->nsects
<= mdata
->nsects
);
4990 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
4991 mdata
->sections
[csect
++] = sec
;
4997 bfd_mach_o_scan_start_address (bfd
*abfd
)
4999 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5000 bfd_mach_o_thread_command
*thr
= NULL
;
5001 bfd_mach_o_load_command
*cmd
;
5004 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
5005 if (cmd
->type
== BFD_MACH_O_LC_THREAD
5006 || cmd
->type
== BFD_MACH_O_LC_UNIXTHREAD
)
5008 thr
= &cmd
->command
.thread
;
5011 else if (cmd
->type
== BFD_MACH_O_LC_MAIN
&& mdata
->nsects
> 1)
5013 bfd_mach_o_main_command
*main_cmd
= &cmd
->command
.main
;
5014 bfd_mach_o_section
*text_sect
= mdata
->sections
[0];
5018 abfd
->start_address
= main_cmd
->entryoff
5019 + (text_sect
->addr
- text_sect
->offset
);
5024 /* An object file has no start address, so do not fail if not found. */
5028 /* FIXME: create a subtarget hook ? */
5029 for (i
= 0; i
< thr
->nflavours
; i
++)
5031 if ((mdata
->header
.cputype
== BFD_MACH_O_CPU_TYPE_I386
)
5032 && (thr
->flavours
[i
].flavour
== BFD_MACH_O_x86_THREAD_STATE32
))
5034 unsigned char buf
[4];
5036 if (bfd_seek (abfd
, thr
->flavours
[i
].offset
+ 40, SEEK_SET
) != 0
5037 || bfd_bread (buf
, 4, abfd
) != 4)
5040 abfd
->start_address
= bfd_h_get_32 (abfd
, buf
);
5042 else if ((mdata
->header
.cputype
== BFD_MACH_O_CPU_TYPE_POWERPC
)
5043 && (thr
->flavours
[i
].flavour
== BFD_MACH_O_PPC_THREAD_STATE
))
5045 unsigned char buf
[4];
5047 if (bfd_seek (abfd
, thr
->flavours
[i
].offset
+ 0, SEEK_SET
) != 0
5048 || bfd_bread (buf
, 4, abfd
) != 4)
5051 abfd
->start_address
= bfd_h_get_32 (abfd
, buf
);
5053 else if ((mdata
->header
.cputype
== BFD_MACH_O_CPU_TYPE_POWERPC_64
)
5054 && (thr
->flavours
[i
].flavour
== BFD_MACH_O_PPC_THREAD_STATE64
))
5056 unsigned char buf
[8];
5058 if (bfd_seek (abfd
, thr
->flavours
[i
].offset
+ 0, SEEK_SET
) != 0
5059 || bfd_bread (buf
, 8, abfd
) != 8)
5062 abfd
->start_address
= bfd_h_get_64 (abfd
, buf
);
5064 else if ((mdata
->header
.cputype
== BFD_MACH_O_CPU_TYPE_X86_64
)
5065 && (thr
->flavours
[i
].flavour
== BFD_MACH_O_x86_THREAD_STATE64
))
5067 unsigned char buf
[8];
5069 if (bfd_seek (abfd
, thr
->flavours
[i
].offset
+ (16 * 8), SEEK_SET
) != 0
5070 || bfd_bread (buf
, 8, abfd
) != 8)
5073 abfd
->start_address
= bfd_h_get_64 (abfd
, buf
);
5081 bfd_mach_o_set_arch_mach (bfd
*abfd
,
5082 enum bfd_architecture arch
,
5083 unsigned long machine
)
5085 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
5087 /* If this isn't the right architecture for this backend, and this
5088 isn't the generic backend, fail. */
5089 if (arch
!= bed
->arch
5090 && arch
!= bfd_arch_unknown
5091 && bed
->arch
!= bfd_arch_unknown
)
5094 return bfd_default_set_arch_mach (abfd
, arch
, machine
);
5098 bfd_mach_o_scan (bfd
*abfd
,
5099 bfd_mach_o_header
*header
,
5100 bfd_mach_o_data_struct
*mdata
)
5103 enum bfd_architecture cputype
;
5104 unsigned long cpusubtype
;
5105 unsigned int hdrsize
;
5107 hdrsize
= mach_o_wide_p (header
) ?
5108 BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
5110 mdata
->header
= *header
;
5112 abfd
->flags
= abfd
->flags
& BFD_IN_MEMORY
;
5113 switch (header
->filetype
)
5115 case BFD_MACH_O_MH_OBJECT
:
5116 abfd
->flags
|= HAS_RELOC
;
5118 case BFD_MACH_O_MH_EXECUTE
:
5119 abfd
->flags
|= EXEC_P
;
5121 case BFD_MACH_O_MH_DYLIB
:
5122 case BFD_MACH_O_MH_BUNDLE
:
5123 abfd
->flags
|= DYNAMIC
;
5127 abfd
->tdata
.mach_o_data
= mdata
;
5129 bfd_mach_o_convert_architecture (header
->cputype
, header
->cpusubtype
,
5130 &cputype
, &cpusubtype
);
5131 if (cputype
== bfd_arch_unknown
)
5134 /* xgettext:c-format */
5135 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
5136 header
->cputype
, header
->cpusubtype
);
5140 bfd_set_arch_mach (abfd
, cputype
, cpusubtype
);
5142 if (header
->ncmds
!= 0)
5144 bfd_mach_o_load_command
*cmd
;
5146 mdata
->first_command
= NULL
;
5147 mdata
->last_command
= NULL
;
5149 cmd
= bfd_alloc2 (abfd
, header
->ncmds
, sizeof (bfd_mach_o_load_command
));
5153 for (i
= 0; i
< header
->ncmds
; i
++)
5155 bfd_mach_o_load_command
*cur
= &cmd
[i
];
5157 bfd_mach_o_append_command (abfd
, cur
);
5160 cur
->offset
= hdrsize
;
5163 bfd_mach_o_load_command
*prev
= &cmd
[i
- 1];
5164 cur
->offset
= prev
->offset
+ prev
->len
;
5167 if (!bfd_mach_o_read_command (abfd
, cur
))
5172 /* Sections should be flatten before scanning start address. */
5173 bfd_mach_o_flatten_sections (abfd
);
5174 if (!bfd_mach_o_scan_start_address (abfd
))
5181 bfd_mach_o_mkobject_init (bfd
*abfd
)
5183 bfd_mach_o_data_struct
*mdata
= NULL
;
5185 mdata
= bfd_zalloc (abfd
, sizeof (bfd_mach_o_data_struct
));
5188 abfd
->tdata
.mach_o_data
= mdata
;
5190 mdata
->header
.magic
= 0;
5191 mdata
->header
.cputype
= 0;
5192 mdata
->header
.cpusubtype
= 0;
5193 mdata
->header
.filetype
= 0;
5194 mdata
->header
.ncmds
= 0;
5195 mdata
->header
.sizeofcmds
= 0;
5196 mdata
->header
.flags
= 0;
5197 mdata
->header
.byteorder
= BFD_ENDIAN_UNKNOWN
;
5198 mdata
->first_command
= NULL
;
5199 mdata
->last_command
= NULL
;
5201 mdata
->sections
= NULL
;
5202 mdata
->dyn_reloc_cache
= NULL
;
5208 bfd_mach_o_gen_mkobject (bfd
*abfd
)
5210 bfd_mach_o_data_struct
*mdata
;
5212 if (!bfd_mach_o_mkobject_init (abfd
))
5215 mdata
= bfd_mach_o_get_data (abfd
);
5216 mdata
->header
.magic
= BFD_MACH_O_MH_MAGIC
;
5217 mdata
->header
.cputype
= 0;
5218 mdata
->header
.cpusubtype
= 0;
5219 mdata
->header
.byteorder
= abfd
->xvec
->byteorder
;
5220 mdata
->header
.version
= 1;
5226 bfd_mach_o_header_p (bfd
*abfd
,
5228 bfd_mach_o_filetype filetype
,
5229 bfd_mach_o_cpu_type cputype
)
5231 bfd_mach_o_header header
;
5232 bfd_mach_o_data_struct
*mdata
;
5234 if (!bfd_mach_o_read_header (abfd
, hdr_off
, &header
))
5237 if (! (header
.byteorder
== BFD_ENDIAN_BIG
5238 || header
.byteorder
== BFD_ENDIAN_LITTLE
))
5240 _bfd_error_handler (_("unknown header byte-order value %#x"),
5245 if (! ((header
.byteorder
== BFD_ENDIAN_BIG
5246 && abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
5247 && abfd
->xvec
->header_byteorder
== BFD_ENDIAN_BIG
)
5248 || (header
.byteorder
== BFD_ENDIAN_LITTLE
5249 && abfd
->xvec
->byteorder
== BFD_ENDIAN_LITTLE
5250 && abfd
->xvec
->header_byteorder
== BFD_ENDIAN_LITTLE
)))
5253 /* Check cputype and filetype.
5254 In case of wildcard, do not accept magics that are handled by existing
5258 if (header
.cputype
!= cputype
)
5264 /* Do not recognize 64 architectures if not configured for 64bit targets.
5265 This could happen only for generic targets. */
5266 if (mach_o_wide_p (&header
))
5273 if (header
.filetype
!= filetype
)
5278 switch (header
.filetype
)
5280 case BFD_MACH_O_MH_CORE
:
5281 /* Handled by core_p */
5288 mdata
= (bfd_mach_o_data_struct
*) bfd_zalloc (abfd
, sizeof (*mdata
));
5291 mdata
->hdr_offset
= hdr_off
;
5293 if (!bfd_mach_o_scan (abfd
, &header
, mdata
))
5299 bfd_set_error (bfd_error_wrong_format
);
5305 static const bfd_target
*
5306 bfd_mach_o_gen_object_p (bfd
*abfd
)
5308 return bfd_mach_o_header_p (abfd
, 0, 0, 0);
5311 static const bfd_target
*
5312 bfd_mach_o_gen_core_p (bfd
*abfd
)
5314 return bfd_mach_o_header_p (abfd
, 0, BFD_MACH_O_MH_CORE
, 0);
5317 /* Return the base address of ABFD, ie the address at which the image is
5318 mapped. The possible initial pagezero is ignored. */
5321 bfd_mach_o_get_base_address (bfd
*abfd
)
5323 bfd_mach_o_data_struct
*mdata
;
5324 bfd_mach_o_load_command
*cmd
;
5326 /* Check for Mach-O. */
5327 if (!bfd_mach_o_valid (abfd
))
5329 mdata
= bfd_mach_o_get_data (abfd
);
5331 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
5333 if ((cmd
->type
== BFD_MACH_O_LC_SEGMENT
5334 || cmd
->type
== BFD_MACH_O_LC_SEGMENT_64
))
5336 struct bfd_mach_o_segment_command
*segcmd
= &cmd
->command
.segment
;
5338 if (segcmd
->initprot
!= 0)
5339 return segcmd
->vmaddr
;
5345 typedef struct mach_o_fat_archentry
5347 unsigned long cputype
;
5348 unsigned long cpusubtype
;
5349 unsigned long offset
;
5351 unsigned long align
;
5352 } mach_o_fat_archentry
;
5354 typedef struct mach_o_fat_data_struct
5356 unsigned long magic
;
5357 unsigned long nfat_arch
;
5358 mach_o_fat_archentry
*archentries
;
5359 } mach_o_fat_data_struct
;
5362 bfd_mach_o_fat_archive_p (bfd
*abfd
)
5364 mach_o_fat_data_struct
*adata
= NULL
;
5365 struct mach_o_fat_header_external hdr
;
5368 if (bfd_seek (abfd
, 0, SEEK_SET
) != 0
5369 || bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
5372 adata
= bfd_alloc (abfd
, sizeof (mach_o_fat_data_struct
));
5376 adata
->magic
= bfd_getb32 (hdr
.magic
);
5377 adata
->nfat_arch
= bfd_getb32 (hdr
.nfat_arch
);
5378 if (adata
->magic
!= 0xcafebabe)
5380 /* Avoid matching Java bytecode files, which have the same magic number.
5381 In the Java bytecode file format this field contains the JVM version,
5382 which starts at 43.0. */
5383 if (adata
->nfat_arch
> 30)
5386 adata
->archentries
=
5387 bfd_alloc2 (abfd
, adata
->nfat_arch
, sizeof (mach_o_fat_archentry
));
5388 if (adata
->archentries
== NULL
)
5391 for (i
= 0; i
< adata
->nfat_arch
; i
++)
5393 struct mach_o_fat_arch_external arch
;
5394 if (bfd_bread (&arch
, sizeof (arch
), abfd
) != sizeof (arch
))
5396 adata
->archentries
[i
].cputype
= bfd_getb32 (arch
.cputype
);
5397 adata
->archentries
[i
].cpusubtype
= bfd_getb32 (arch
.cpusubtype
);
5398 adata
->archentries
[i
].offset
= bfd_getb32 (arch
.offset
);
5399 adata
->archentries
[i
].size
= bfd_getb32 (arch
.size
);
5400 adata
->archentries
[i
].align
= bfd_getb32 (arch
.align
);
5403 abfd
->tdata
.mach_o_fat_data
= adata
;
5409 bfd_release (abfd
, adata
);
5410 bfd_set_error (bfd_error_wrong_format
);
5414 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5415 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5416 Set arelt_data and origin fields too. */
5419 bfd_mach_o_fat_member_init (bfd
*abfd
,
5420 enum bfd_architecture arch_type
,
5421 unsigned long arch_subtype
,
5422 mach_o_fat_archentry
*entry
)
5424 struct areltdata
*areltdata
;
5425 /* Create the member filename. Use ARCH_NAME. */
5426 const bfd_arch_info_type
*ap
= bfd_lookup_arch (arch_type
, arch_subtype
);
5430 /* Use the architecture name if known. */
5431 abfd
->filename
= xstrdup (ap
->printable_name
);
5435 /* Forge a uniq id. */
5436 const size_t namelen
= 2 + 8 + 1 + 2 + 8 + 1;
5437 char *name
= xmalloc (namelen
);
5438 snprintf (name
, namelen
, "0x%lx-0x%lx",
5439 entry
->cputype
, entry
->cpusubtype
);
5440 abfd
->filename
= name
;
5443 areltdata
= bfd_zmalloc (sizeof (struct areltdata
));
5444 areltdata
->parsed_size
= entry
->size
;
5445 abfd
->arelt_data
= areltdata
;
5446 abfd
->iostream
= NULL
;
5447 abfd
->origin
= entry
->offset
;
5451 bfd_mach_o_fat_openr_next_archived_file (bfd
*archive
, bfd
*prev
)
5453 mach_o_fat_data_struct
*adata
;
5454 mach_o_fat_archentry
*entry
= NULL
;
5457 enum bfd_architecture arch_type
;
5458 unsigned long arch_subtype
;
5460 adata
= (mach_o_fat_data_struct
*) archive
->tdata
.mach_o_fat_data
;
5461 BFD_ASSERT (adata
!= NULL
);
5463 /* Find index of previous entry. */
5466 /* Start at first one. */
5471 /* Find index of PREV. */
5472 for (i
= 0; i
< adata
->nfat_arch
; i
++)
5474 if (adata
->archentries
[i
].offset
== prev
->origin
)
5478 if (i
== adata
->nfat_arch
)
5481 bfd_set_error (bfd_error_bad_value
);
5485 /* Get next entry. */
5489 if (i
>= adata
->nfat_arch
)
5491 bfd_set_error (bfd_error_no_more_archived_files
);
5495 entry
= &adata
->archentries
[i
];
5496 nbfd
= _bfd_new_bfd_contained_in (archive
);
5500 bfd_mach_o_convert_architecture (entry
->cputype
, entry
->cpusubtype
,
5501 &arch_type
, &arch_subtype
);
5503 bfd_mach_o_fat_member_init (nbfd
, arch_type
, arch_subtype
, entry
);
5505 bfd_set_arch_mach (nbfd
, arch_type
, arch_subtype
);
5510 /* Analogous to stat call. */
5513 bfd_mach_o_fat_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
5515 if (abfd
->arelt_data
== NULL
)
5517 bfd_set_error (bfd_error_invalid_operation
);
5524 buf
->st_mode
= 0644;
5525 buf
->st_size
= arelt_size (abfd
);
5530 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5531 If ABFD is a fat image containing a member that corresponds to FORMAT
5532 and ARCH, returns it.
5533 In other case, returns NULL.
5534 This function allows transparent uses of fat images. */
5537 bfd_mach_o_fat_extract (bfd
*abfd
,
5539 const bfd_arch_info_type
*arch
)
5542 mach_o_fat_data_struct
*adata
;
5545 if (bfd_check_format (abfd
, format
))
5547 if (bfd_get_arch_info (abfd
) == arch
)
5551 if (!bfd_check_format (abfd
, bfd_archive
)
5552 || abfd
->xvec
!= &mach_o_fat_vec
)
5555 /* This is a Mach-O fat image. */
5556 adata
= (mach_o_fat_data_struct
*) abfd
->tdata
.mach_o_fat_data
;
5557 BFD_ASSERT (adata
!= NULL
);
5559 for (i
= 0; i
< adata
->nfat_arch
; i
++)
5561 struct mach_o_fat_archentry
*e
= &adata
->archentries
[i
];
5562 enum bfd_architecture cpu_type
;
5563 unsigned long cpu_subtype
;
5565 bfd_mach_o_convert_architecture (e
->cputype
, e
->cpusubtype
,
5566 &cpu_type
, &cpu_subtype
);
5567 if (cpu_type
!= arch
->arch
|| cpu_subtype
!= arch
->mach
)
5570 /* The architecture is found. */
5571 res
= _bfd_new_bfd_contained_in (abfd
);
5575 bfd_mach_o_fat_member_init (res
, cpu_type
, cpu_subtype
, e
);
5577 if (bfd_check_format (res
, format
))
5579 BFD_ASSERT (bfd_get_arch_info (res
) == arch
);
5590 bfd_mach_o_fat_close_and_cleanup (bfd
*abfd
)
5592 _bfd_unlink_from_archive_parent (abfd
);
5597 bfd_mach_o_lookup_command (bfd
*abfd
,
5598 bfd_mach_o_load_command_type type
,
5599 bfd_mach_o_load_command
**mcommand
)
5601 struct mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5602 struct bfd_mach_o_load_command
*cmd
;
5605 BFD_ASSERT (mdata
!= NULL
);
5606 BFD_ASSERT (mcommand
!= NULL
);
5609 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
5611 if (cmd
->type
!= type
)
5623 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type
)
5627 case BFD_MACH_O_CPU_TYPE_MC680x0
:
5629 case BFD_MACH_O_CPU_TYPE_POWERPC
:
5631 case BFD_MACH_O_CPU_TYPE_I386
:
5633 case BFD_MACH_O_CPU_TYPE_SPARC
:
5635 case BFD_MACH_O_CPU_TYPE_HPPA
:
5636 return 0xc0000000 - 0x04000000;
5642 /* The following two tables should be kept, as far as possible, in order of
5643 most frequently used entries to optimize their use from gas. */
5645 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name
[] =
5647 { "regular", BFD_MACH_O_S_REGULAR
},
5648 { "coalesced", BFD_MACH_O_S_COALESCED
},
5649 { "zerofill", BFD_MACH_O_S_ZEROFILL
},
5650 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS
},
5651 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS
},
5652 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS
},
5653 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS
},
5654 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS
},
5655 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS
},
5656 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS
},
5657 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL
},
5658 { "interposing", BFD_MACH_O_S_INTERPOSING
},
5659 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF
},
5660 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
},
5661 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
},
5662 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS
},
5663 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS
},
5667 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name
[] =
5669 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
},
5670 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
},
5671 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC
},
5672 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC
},
5673 { "debug", BFD_MACH_O_S_ATTR_DEBUG
},
5674 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT
},
5675 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
},
5676 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
},
5677 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC
},
5678 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE
},
5679 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE
},
5683 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5686 bfd_mach_o_get_section_type_from_name (bfd
*abfd
, const char *name
)
5688 const bfd_mach_o_xlat_name
*x
;
5689 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
5691 for (x
= bfd_mach_o_section_type_name
; x
->name
; x
++)
5692 if (strcmp (x
->name
, name
) == 0)
5694 /* We found it... does the target support it? */
5695 if (bed
->bfd_mach_o_section_type_valid_for_target
== NULL
5696 || bed
->bfd_mach_o_section_type_valid_for_target (x
->val
))
5697 return x
->val
; /* OK. */
5699 break; /* Not supported. */
5701 /* Maximum section ID = 0xff. */
5705 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5708 bfd_mach_o_get_section_attribute_from_name (const char *name
)
5710 const bfd_mach_o_xlat_name
*x
;
5712 for (x
= bfd_mach_o_section_attribute_name
; x
->name
; x
++)
5713 if (strcmp (x
->name
, name
) == 0)
5715 return (unsigned int)-1;
5719 bfd_mach_o_core_fetch_environment (bfd
*abfd
,
5720 unsigned char **rbuf
,
5723 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5724 unsigned long stackaddr
= bfd_mach_o_stack_addr (mdata
->header
.cputype
);
5725 bfd_mach_o_load_command
*cmd
;
5727 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
5729 bfd_mach_o_segment_command
*seg
;
5731 if (cmd
->type
!= BFD_MACH_O_LC_SEGMENT
)
5734 seg
= &cmd
->command
.segment
;
5736 if ((seg
->vmaddr
+ seg
->vmsize
) == stackaddr
)
5738 unsigned long start
= seg
->fileoff
;
5739 unsigned long end
= seg
->fileoff
+ seg
->filesize
;
5740 unsigned char *buf
= bfd_malloc (1024);
5741 unsigned long size
= 1024;
5745 bfd_size_type nread
= 0;
5746 unsigned long offset
;
5747 int found_nonnull
= 0;
5749 if (size
> (end
- start
))
5750 size
= (end
- start
);
5752 buf
= bfd_realloc_or_free (buf
, size
);
5756 if (bfd_seek (abfd
, end
- size
, SEEK_SET
) != 0)
5762 nread
= bfd_bread (buf
, size
, abfd
);
5770 for (offset
= 4; offset
<= size
; offset
+= 4)
5774 val
= *((unsigned long *) (buf
+ size
- offset
));
5775 if (! found_nonnull
)
5780 else if (val
== 0x0)
5782 unsigned long bottom
;
5785 bottom
= seg
->fileoff
+ seg
->filesize
- offset
;
5786 top
= seg
->fileoff
+ seg
->filesize
- 4;
5787 *rbuf
= bfd_malloc (top
- bottom
);
5788 *rlen
= top
- bottom
;
5790 memcpy (*rbuf
, buf
+ size
- *rlen
, *rlen
);
5796 if (size
== (end
- start
))
5810 bfd_mach_o_core_file_failing_command (bfd
*abfd
)
5812 unsigned char *buf
= NULL
;
5813 unsigned int len
= 0;
5816 ret
= bfd_mach_o_core_fetch_environment (abfd
, &buf
, &len
);
5820 return (char *) buf
;
5824 bfd_mach_o_core_file_failing_signal (bfd
*abfd ATTRIBUTE_UNUSED
)
5829 static bfd_mach_o_uuid_command
*
5830 bfd_mach_o_lookup_uuid_command (bfd
*abfd
)
5832 bfd_mach_o_load_command
*uuid_cmd
= NULL
;
5833 int ncmd
= bfd_mach_o_lookup_command (abfd
, BFD_MACH_O_LC_UUID
, &uuid_cmd
);
5834 if (ncmd
!= 1 || uuid_cmd
== NULL
)
5836 return &uuid_cmd
->command
.uuid
;
5839 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5842 bfd_mach_o_dsym_for_uuid_p (bfd
*abfd
, const bfd_mach_o_uuid_command
*uuid_cmd
)
5844 bfd_mach_o_uuid_command
*dsym_uuid_cmd
;
5847 BFD_ASSERT (uuid_cmd
);
5849 if (!bfd_check_format (abfd
, bfd_object
))
5852 if (bfd_get_flavour (abfd
) != bfd_target_mach_o_flavour
5853 || bfd_mach_o_get_data (abfd
) == NULL
5854 || bfd_mach_o_get_data (abfd
)->header
.filetype
!= BFD_MACH_O_MH_DSYM
)
5857 dsym_uuid_cmd
= bfd_mach_o_lookup_uuid_command (abfd
);
5858 if (dsym_uuid_cmd
== NULL
)
5861 if (memcmp (uuid_cmd
->uuid
, dsym_uuid_cmd
->uuid
,
5862 sizeof (uuid_cmd
->uuid
)) != 0)
5868 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5869 The caller is responsible for closing the returned BFD object and
5870 its my_archive if the returned BFD is in a fat dSYM. */
5873 bfd_mach_o_find_dsym (const char *dsym_filename
,
5874 const bfd_mach_o_uuid_command
*uuid_cmd
,
5875 const bfd_arch_info_type
*arch
)
5877 bfd
*base_dsym_bfd
, *dsym_bfd
;
5879 BFD_ASSERT (uuid_cmd
);
5881 base_dsym_bfd
= bfd_openr (dsym_filename
, NULL
);
5882 if (base_dsym_bfd
== NULL
)
5885 dsym_bfd
= bfd_mach_o_fat_extract (base_dsym_bfd
, bfd_object
, arch
);
5886 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd
, uuid_cmd
))
5889 bfd_close (dsym_bfd
);
5890 if (base_dsym_bfd
!= dsym_bfd
)
5891 bfd_close (base_dsym_bfd
);
5896 /* Return a BFD created from a dSYM file for ABFD.
5897 The caller is responsible for closing the returned BFD object, its
5898 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5901 bfd_mach_o_follow_dsym (bfd
*abfd
)
5903 char *dsym_filename
;
5904 bfd_mach_o_uuid_command
*uuid_cmd
;
5905 bfd
*dsym_bfd
, *base_bfd
= abfd
;
5906 const char *base_basename
;
5908 if (abfd
== NULL
|| bfd_get_flavour (abfd
) != bfd_target_mach_o_flavour
)
5911 if (abfd
->my_archive
&& !bfd_is_thin_archive (abfd
->my_archive
))
5912 base_bfd
= abfd
->my_archive
;
5913 /* BFD may have been opened from a stream. */
5914 if (base_bfd
->filename
== NULL
)
5916 bfd_set_error (bfd_error_invalid_operation
);
5919 base_basename
= lbasename (base_bfd
->filename
);
5921 uuid_cmd
= bfd_mach_o_lookup_uuid_command (abfd
);
5922 if (uuid_cmd
== NULL
)
5925 /* TODO: We assume the DWARF file has the same as the binary's.
5926 It seems apple's GDB checks all files in the dSYM bundle directory.
5927 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5929 dsym_filename
= (char *)bfd_malloc (strlen (base_bfd
->filename
)
5930 + strlen (dsym_subdir
) + 1
5931 + strlen (base_basename
) + 1);
5932 sprintf (dsym_filename
, "%s%s/%s",
5933 base_bfd
->filename
, dsym_subdir
, base_basename
);
5935 dsym_bfd
= bfd_mach_o_find_dsym (dsym_filename
, uuid_cmd
,
5936 bfd_get_arch_info (abfd
));
5937 if (dsym_bfd
== NULL
)
5938 free (dsym_filename
);
5944 bfd_mach_o_find_nearest_line (bfd
*abfd
,
5948 const char **filename_ptr
,
5949 const char **functionname_ptr
,
5950 unsigned int *line_ptr
,
5951 unsigned int *discriminator_ptr
)
5953 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5956 switch (mdata
->header
.filetype
)
5958 case BFD_MACH_O_MH_OBJECT
:
5960 case BFD_MACH_O_MH_EXECUTE
:
5961 case BFD_MACH_O_MH_DYLIB
:
5962 case BFD_MACH_O_MH_BUNDLE
:
5963 case BFD_MACH_O_MH_KEXT_BUNDLE
:
5964 if (mdata
->dwarf2_find_line_info
== NULL
)
5966 mdata
->dsym_bfd
= bfd_mach_o_follow_dsym (abfd
);
5967 /* When we couldn't find dSYM for this binary, we look for
5968 the debug information in the binary itself. In this way,
5969 we won't try finding separated dSYM again because
5970 mdata->dwarf2_find_line_info will be filled. */
5971 if (! mdata
->dsym_bfd
)
5973 if (! _bfd_dwarf2_slurp_debug_info (abfd
, mdata
->dsym_bfd
,
5974 dwarf_debug_sections
, symbols
,
5975 &mdata
->dwarf2_find_line_info
,
5983 return _bfd_dwarf2_find_nearest_line (abfd
, symbols
, NULL
, section
, offset
,
5984 filename_ptr
, functionname_ptr
,
5985 line_ptr
, discriminator_ptr
,
5986 dwarf_debug_sections
, 0,
5987 &mdata
->dwarf2_find_line_info
);
5991 bfd_mach_o_close_and_cleanup (bfd
*abfd
)
5993 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5994 if (bfd_get_format (abfd
) == bfd_object
&& mdata
!= NULL
)
5996 _bfd_dwarf2_cleanup_debug_info (abfd
, &mdata
->dwarf2_find_line_info
);
5997 bfd_mach_o_free_cached_info (abfd
);
5998 if (mdata
->dsym_bfd
!= NULL
)
6000 bfd
*fat_bfd
= mdata
->dsym_bfd
->my_archive
;
6002 /* FIXME: PR 19435: This calculation to find the memory allocated by
6003 bfd_mach_o_follow_dsym for the filename does not always end up
6004 selecting the correct pointer. Unfortunately this problem is
6005 very hard to reproduce on a non Mach-O native system, so until it
6006 can be traced and fixed on such a system, this code will remain
6007 commented out. This does mean that there will be a memory leak,
6008 but it is small, and happens when we are closing down, so it
6009 should not matter too much. */
6010 char *dsym_filename
= (char *)(fat_bfd
6012 : mdata
->dsym_bfd
->filename
);
6014 bfd_close (mdata
->dsym_bfd
);
6015 mdata
->dsym_bfd
= NULL
;
6017 bfd_close (fat_bfd
);
6019 free (dsym_filename
);
6024 return _bfd_generic_close_and_cleanup (abfd
);
6028 bfd_mach_o_free_cached_info (bfd
*abfd
)
6030 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
6032 free (mdata
->dyn_reloc_cache
);
6033 mdata
->dyn_reloc_cache
= NULL
;
6034 for (asect
= abfd
->sections
; asect
!= NULL
; asect
= asect
->next
)
6036 free (asect
->relocation
);
6037 asect
->relocation
= NULL
;
6043 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
6044 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
6046 #define bfd_mach_o_canonicalize_one_reloc NULL
6047 #define bfd_mach_o_swap_reloc_out NULL
6048 #define bfd_mach_o_print_thread NULL
6049 #define bfd_mach_o_tgt_seg_table NULL
6050 #define bfd_mach_o_section_type_valid_for_tgt NULL
6052 #define TARGET_NAME mach_o_be_vec
6053 #define TARGET_STRING "mach-o-be"
6054 #define TARGET_ARCHITECTURE bfd_arch_unknown
6055 #define TARGET_PAGESIZE 1
6056 #define TARGET_BIG_ENDIAN 1
6057 #define TARGET_ARCHIVE 0
6058 #define TARGET_PRIORITY 1
6059 #include "mach-o-target.c"
6062 #undef TARGET_STRING
6063 #undef TARGET_ARCHITECTURE
6064 #undef TARGET_PAGESIZE
6065 #undef TARGET_BIG_ENDIAN
6066 #undef TARGET_ARCHIVE
6067 #undef TARGET_PRIORITY
6069 #define TARGET_NAME mach_o_le_vec
6070 #define TARGET_STRING "mach-o-le"
6071 #define TARGET_ARCHITECTURE bfd_arch_unknown
6072 #define TARGET_PAGESIZE 1
6073 #define TARGET_BIG_ENDIAN 0
6074 #define TARGET_ARCHIVE 0
6075 #define TARGET_PRIORITY 1
6077 #include "mach-o-target.c"
6080 #undef TARGET_STRING
6081 #undef TARGET_ARCHITECTURE
6082 #undef TARGET_PAGESIZE
6083 #undef TARGET_BIG_ENDIAN
6084 #undef TARGET_ARCHIVE
6085 #undef TARGET_PRIORITY
6087 /* Not yet handled: creating an archive. */
6088 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
6090 #define bfd_mach_o_close_and_cleanup bfd_mach_o_fat_close_and_cleanup
6093 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
6094 #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file
6095 #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p
6097 #define TARGET_NAME mach_o_fat_vec
6098 #define TARGET_STRING "mach-o-fat"
6099 #define TARGET_ARCHITECTURE bfd_arch_unknown
6100 #define TARGET_PAGESIZE 1
6101 #define TARGET_BIG_ENDIAN 1
6102 #define TARGET_ARCHIVE 1
6103 #define TARGET_PRIORITY 0
6105 #include "mach-o-target.c"
6108 #undef TARGET_STRING
6109 #undef TARGET_ARCHITECTURE
6110 #undef TARGET_PAGESIZE
6111 #undef TARGET_BIG_ENDIAN
6112 #undef TARGET_ARCHIVE
6113 #undef TARGET_PRIORITY