1 /* Mach-O support for BFD.
2 Copyright (C) 1999-2018 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"
26 #include "aout/stab_gnu.h"
27 #include "mach-o/reloc.h"
28 #include "mach-o/external.h"
33 #define bfd_mach_o_object_p bfd_mach_o_gen_object_p
34 #define bfd_mach_o_core_p bfd_mach_o_gen_core_p
35 #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject
37 #define FILE_ALIGN(off, algn) \
38 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn)))
41 bfd_mach_o_read_dyld_content (bfd
*abfd
, bfd_mach_o_dyld_info_command
*cmd
);
44 bfd_mach_o_version (bfd
*abfd
)
46 bfd_mach_o_data_struct
*mdata
= NULL
;
48 BFD_ASSERT (bfd_mach_o_valid (abfd
));
49 mdata
= bfd_mach_o_get_data (abfd
);
51 return mdata
->header
.version
;
55 bfd_mach_o_valid (bfd
*abfd
)
57 if (abfd
== NULL
|| abfd
->xvec
== NULL
)
60 if (abfd
->xvec
->flavour
!= bfd_target_mach_o_flavour
)
63 if (bfd_mach_o_get_data (abfd
) == NULL
)
68 static INLINE bfd_boolean
69 mach_o_wide_p (bfd_mach_o_header
*header
)
71 switch (header
->version
)
83 static INLINE bfd_boolean
84 bfd_mach_o_wide_p (bfd
*abfd
)
86 return mach_o_wide_p (&bfd_mach_o_get_data (abfd
)->header
);
89 /* Tables to translate well known Mach-O segment/section names to bfd
90 names. Use of canonical names (such as .text or .debug_frame) is required
94 static const mach_o_section_name_xlat text_section_names_xlat
[] =
97 SEC_CODE
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
98 BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
, 0},
99 { ".const", "__const",
100 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
101 BFD_MACH_O_S_ATTR_NONE
, 0},
102 { ".static_const", "__static_const",
103 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
104 BFD_MACH_O_S_ATTR_NONE
, 0},
105 { ".cstring", "__cstring",
106 SEC_READONLY
| SEC_DATA
| SEC_LOAD
| SEC_MERGE
| SEC_STRINGS
,
107 BFD_MACH_O_S_CSTRING_LITERALS
,
108 BFD_MACH_O_S_ATTR_NONE
, 0},
109 { ".literal4", "__literal4",
110 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_4BYTE_LITERALS
,
111 BFD_MACH_O_S_ATTR_NONE
, 2},
112 { ".literal8", "__literal8",
113 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_8BYTE_LITERALS
,
114 BFD_MACH_O_S_ATTR_NONE
, 3},
115 { ".literal16", "__literal16",
116 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_16BYTE_LITERALS
,
117 BFD_MACH_O_S_ATTR_NONE
, 4},
118 { ".constructor", "__constructor",
119 SEC_CODE
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
120 BFD_MACH_O_S_ATTR_NONE
, 0},
121 { ".destructor", "__destructor",
122 SEC_CODE
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
123 BFD_MACH_O_S_ATTR_NONE
, 0},
124 { ".eh_frame", "__eh_frame",
125 SEC_READONLY
| SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_COALESCED
,
126 BFD_MACH_O_S_ATTR_LIVE_SUPPORT
127 | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
128 | BFD_MACH_O_S_ATTR_NO_TOC
, 2},
129 { NULL
, NULL
, 0, 0, 0, 0}
132 /* __DATA Segment. */
133 static const mach_o_section_name_xlat data_section_names_xlat
[] =
136 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
137 BFD_MACH_O_S_ATTR_NONE
, 0},
139 SEC_NO_FLAGS
, BFD_MACH_O_S_ZEROFILL
,
140 BFD_MACH_O_S_ATTR_NONE
, 0},
141 { ".const_data", "__const",
142 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
143 BFD_MACH_O_S_ATTR_NONE
, 0},
144 { ".static_data", "__static_data",
145 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
146 BFD_MACH_O_S_ATTR_NONE
, 0},
147 { ".mod_init_func", "__mod_init_func",
148 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS
,
149 BFD_MACH_O_S_ATTR_NONE
, 2},
150 { ".mod_term_func", "__mod_term_func",
151 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS
,
152 BFD_MACH_O_S_ATTR_NONE
, 2},
154 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
155 BFD_MACH_O_S_ATTR_NONE
, 0},
156 { ".cfstring", "__cfstring",
157 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
158 BFD_MACH_O_S_ATTR_NONE
, 2},
159 { NULL
, NULL
, 0, 0, 0, 0}
162 /* __DWARF Segment. */
163 static const mach_o_section_name_xlat dwarf_section_names_xlat
[] =
165 { ".debug_frame", "__debug_frame",
166 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
167 BFD_MACH_O_S_ATTR_DEBUG
, 0},
168 { ".debug_info", "__debug_info",
169 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
170 BFD_MACH_O_S_ATTR_DEBUG
, 0},
171 { ".debug_abbrev", "__debug_abbrev",
172 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
173 BFD_MACH_O_S_ATTR_DEBUG
, 0},
174 { ".debug_aranges", "__debug_aranges",
175 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
176 BFD_MACH_O_S_ATTR_DEBUG
, 0},
177 { ".debug_macinfo", "__debug_macinfo",
178 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
179 BFD_MACH_O_S_ATTR_DEBUG
, 0},
180 { ".debug_line", "__debug_line",
181 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
182 BFD_MACH_O_S_ATTR_DEBUG
, 0},
183 { ".debug_loc", "__debug_loc",
184 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
185 BFD_MACH_O_S_ATTR_DEBUG
, 0},
186 { ".debug_pubnames", "__debug_pubnames",
187 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
188 BFD_MACH_O_S_ATTR_DEBUG
, 0},
189 { ".debug_pubtypes", "__debug_pubtypes",
190 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
191 BFD_MACH_O_S_ATTR_DEBUG
, 0},
192 { ".debug_str", "__debug_str",
193 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
194 BFD_MACH_O_S_ATTR_DEBUG
, 0},
195 { ".debug_ranges", "__debug_ranges",
196 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
197 BFD_MACH_O_S_ATTR_DEBUG
, 0},
198 { ".debug_macro", "__debug_macro",
199 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
200 BFD_MACH_O_S_ATTR_DEBUG
, 0},
201 { ".debug_gdb_scripts", "__debug_gdb_scri",
202 SEC_DEBUGGING
, BFD_MACH_O_S_REGULAR
,
203 BFD_MACH_O_S_ATTR_DEBUG
, 0},
204 { NULL
, NULL
, 0, 0, 0, 0}
207 /* __OBJC Segment. */
208 static const mach_o_section_name_xlat objc_section_names_xlat
[] =
210 { ".objc_class", "__class",
211 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
212 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
213 { ".objc_meta_class", "__meta_class",
214 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
215 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
216 { ".objc_cat_cls_meth", "__cat_cls_meth",
217 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
218 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
219 { ".objc_cat_inst_meth", "__cat_inst_meth",
220 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
221 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
222 { ".objc_protocol", "__protocol",
223 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
224 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
225 { ".objc_string_object", "__string_object",
226 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
227 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
228 { ".objc_cls_meth", "__cls_meth",
229 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
230 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
231 { ".objc_inst_meth", "__inst_meth",
232 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
233 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
234 { ".objc_cls_refs", "__cls_refs",
235 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_LITERAL_POINTERS
,
236 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
237 { ".objc_message_refs", "__message_refs",
238 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_LITERAL_POINTERS
,
239 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
240 { ".objc_symbols", "__symbols",
241 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
242 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
243 { ".objc_category", "__category",
244 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
245 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
246 { ".objc_class_vars", "__class_vars",
247 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
248 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
249 { ".objc_instance_vars", "__instance_vars",
250 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
251 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
252 { ".objc_module_info", "__module_info",
253 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
254 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
255 { ".objc_selector_strs", "__selector_strs",
256 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_CSTRING_LITERALS
,
257 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
258 { ".objc_image_info", "__image_info",
259 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
260 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
261 { ".objc_selector_fixup", "__sel_fixup",
262 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
263 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
265 { ".objc1_class_ext", "__class_ext",
266 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
267 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
268 { ".objc1_property_list", "__property",
269 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
270 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
271 { ".objc1_protocol_ext", "__protocol_ext",
272 SEC_DATA
| SEC_LOAD
, BFD_MACH_O_S_REGULAR
,
273 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
, 0},
274 { NULL
, NULL
, 0, 0, 0, 0}
277 static const mach_o_segment_name_xlat segsec_names_xlat
[] =
279 { "__TEXT", text_section_names_xlat
},
280 { "__DATA", data_section_names_xlat
},
281 { "__DWARF", dwarf_section_names_xlat
},
282 { "__OBJC", objc_section_names_xlat
},
286 static const char dsym_subdir
[] = ".dSYM/Contents/Resources/DWARF";
288 /* For both cases bfd-name => mach-o name and vice versa, the specific target
289 is checked before the generic. This allows a target (e.g. ppc for cstring)
290 to override the generic definition with a more specific one. */
292 /* Fetch the translation from a Mach-O section designation (segment, section)
293 as a bfd short name, if one exists. Otherwise return NULL.
295 Allow the segment and section names to be unterminated 16 byte arrays. */
297 const mach_o_section_name_xlat
*
298 bfd_mach_o_section_data_for_mach_sect (bfd
*abfd
, const char *segname
,
299 const char *sectname
)
301 const struct mach_o_segment_name_xlat
*seg
;
302 const mach_o_section_name_xlat
*sec
;
303 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
305 /* First try any target-specific translations defined... */
306 if (bed
->segsec_names_xlat
)
307 for (seg
= bed
->segsec_names_xlat
; seg
->segname
; seg
++)
308 if (strncmp (seg
->segname
, segname
, BFD_MACH_O_SEGNAME_SIZE
) == 0)
309 for (sec
= seg
->sections
; sec
->mach_o_name
; sec
++)
310 if (strncmp (sec
->mach_o_name
, sectname
,
311 BFD_MACH_O_SECTNAME_SIZE
) == 0)
314 /* ... and then the Mach-O generic ones. */
315 for (seg
= segsec_names_xlat
; seg
->segname
; seg
++)
316 if (strncmp (seg
->segname
, segname
, BFD_MACH_O_SEGNAME_SIZE
) == 0)
317 for (sec
= seg
->sections
; sec
->mach_o_name
; sec
++)
318 if (strncmp (sec
->mach_o_name
, sectname
,
319 BFD_MACH_O_SECTNAME_SIZE
) == 0)
325 /* If the bfd_name for this section is a 'canonical' form for which we
326 know the Mach-O data, return the segment name and the data for the
327 Mach-O equivalent. Otherwise return NULL. */
329 const mach_o_section_name_xlat
*
330 bfd_mach_o_section_data_for_bfd_name (bfd
*abfd
, const char *bfd_name
,
331 const char **segname
)
333 const struct mach_o_segment_name_xlat
*seg
;
334 const mach_o_section_name_xlat
*sec
;
335 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
338 if (bfd_name
[0] != '.')
341 /* First try any target-specific translations defined... */
342 if (bed
->segsec_names_xlat
)
343 for (seg
= bed
->segsec_names_xlat
; seg
->segname
; seg
++)
344 for (sec
= seg
->sections
; sec
->bfd_name
; sec
++)
345 if (strcmp (bfd_name
, sec
->bfd_name
) == 0)
347 *segname
= seg
->segname
;
351 /* ... and then the Mach-O generic ones. */
352 for (seg
= segsec_names_xlat
; seg
->segname
; seg
++)
353 for (sec
= seg
->sections
; sec
->bfd_name
; sec
++)
354 if (strcmp (bfd_name
, sec
->bfd_name
) == 0)
356 *segname
= seg
->segname
;
363 /* Convert Mach-O section name to BFD.
365 Try to use standard/canonical names, for which we have tables including
366 default flag settings - which are returned. Otherwise forge a new name
367 in the form "<segmentname>.<sectionname>" this will be prefixed with
368 LC_SEGMENT. if the segment name does not begin with an underscore.
370 SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL-
371 terminated if the name length is exactly 16 bytes - but must be if the name
372 length is less than 16 characters). */
375 bfd_mach_o_convert_section_name_to_bfd (bfd
*abfd
, const char *segname
,
376 const char *secname
, const char **name
,
379 const mach_o_section_name_xlat
*xlat
;
382 const char *pfx
= "";
385 *flags
= SEC_NO_FLAGS
;
387 /* First search for a canonical name...
388 xlat will be non-null if there is an entry for segname, secname. */
389 xlat
= bfd_mach_o_section_data_for_mach_sect (abfd
, segname
, secname
);
392 len
= strlen (xlat
->bfd_name
);
393 res
= bfd_alloc (abfd
, len
+ 1);
396 memcpy (res
, xlat
->bfd_name
, len
+1);
398 *flags
= xlat
->bfd_flags
;
402 /* ... else we make up a bfd name from the segment concatenated with the
405 len
= 16 + 1 + 16 + 1;
407 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
408 with an underscore. */
409 if (segname
[0] != '_')
411 static const char seg_pfx
[] = "LC_SEGMENT.";
414 len
+= sizeof (seg_pfx
) - 1;
417 res
= bfd_alloc (abfd
, len
);
420 snprintf (res
, len
, "%s%.16s.%.16s", pfx
, segname
, secname
);
424 /* Convert a bfd section name to a Mach-O segment + section name.
426 If the name is a canonical one for which we have a Darwin match
427 return the translation table - which contains defaults for flags,
428 type, attribute and default alignment data.
430 Otherwise, expand the bfd_name (assumed to be in the form
431 "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
433 static const mach_o_section_name_xlat
*
434 bfd_mach_o_convert_section_name_to_mach_o (bfd
*abfd ATTRIBUTE_UNUSED
,
436 bfd_mach_o_section
*section
)
438 const mach_o_section_name_xlat
*xlat
;
439 const char *name
= bfd_get_section_name (abfd
, sect
);
446 memset (section
->segname
, 0, BFD_MACH_O_SEGNAME_SIZE
+ 1);
447 memset (section
->sectname
, 0, BFD_MACH_O_SECTNAME_SIZE
+ 1);
449 /* See if is a canonical name ... */
450 xlat
= bfd_mach_o_section_data_for_bfd_name (abfd
, name
, &segname
);
453 strcpy (section
->segname
, segname
);
454 strcpy (section
->sectname
, xlat
->mach_o_name
);
458 /* .. else we convert our constructed one back to Mach-O.
459 Strip LC_SEGMENT. prefix, if present. */
460 if (strncmp (name
, "LC_SEGMENT.", 11) == 0)
464 dot
= strchr (name
, '.');
467 /* Try to split name into segment and section names. */
468 if (dot
&& dot
!= name
)
471 seclen
= len
- (dot
+ 1 - name
);
473 if (seglen
<= BFD_MACH_O_SEGNAME_SIZE
474 && seclen
<= BFD_MACH_O_SECTNAME_SIZE
)
476 memcpy (section
->segname
, name
, seglen
);
477 section
->segname
[seglen
] = 0;
478 memcpy (section
->sectname
, dot
+ 1, seclen
);
479 section
->sectname
[seclen
] = 0;
484 /* The segment and section names are both missing - don't make them
486 if (dot
&& dot
== name
)
489 /* Just duplicate the name into both segment and section. */
492 memcpy (section
->segname
, name
, len
);
493 section
->segname
[len
] = 0;
494 memcpy (section
->sectname
, name
, len
);
495 section
->sectname
[len
] = 0;
499 /* Return the size of an entry for section SEC.
500 Must be called only for symbol pointer section and symbol stubs
504 bfd_mach_o_section_get_entry_size (bfd
*abfd
, bfd_mach_o_section
*sec
)
506 switch (sec
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
508 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
:
509 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
:
510 return bfd_mach_o_wide_p (abfd
) ? 8 : 4;
511 case BFD_MACH_O_S_SYMBOL_STUBS
:
512 return sec
->reserved2
;
519 /* Return the number of indirect symbols for a section.
520 Must be called only for symbol pointer section and symbol stubs
524 bfd_mach_o_section_get_nbr_indirect (bfd
*abfd
, bfd_mach_o_section
*sec
)
528 elsz
= bfd_mach_o_section_get_entry_size (abfd
, sec
);
532 return sec
->size
/ elsz
;
535 /* Append command CMD to ABFD. Note that header.ncmds is not updated. */
538 bfd_mach_o_append_command (bfd
*abfd
, bfd_mach_o_load_command
*cmd
)
540 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
542 if (mdata
->last_command
!= NULL
)
543 mdata
->last_command
->next
= cmd
;
545 mdata
->first_command
= cmd
;
546 mdata
->last_command
= cmd
;
550 /* Copy any private info we understand from the input symbol
551 to the output symbol. */
554 bfd_mach_o_bfd_copy_private_symbol_data (bfd
*ibfd ATTRIBUTE_UNUSED
,
556 bfd
*obfd ATTRIBUTE_UNUSED
,
559 bfd_mach_o_asymbol
*os
, *is
;
561 os
= (bfd_mach_o_asymbol
*)osymbol
;
562 is
= (bfd_mach_o_asymbol
*)isymbol
;
563 os
->n_type
= is
->n_type
;
564 os
->n_sect
= is
->n_sect
;
565 os
->n_desc
= is
->n_desc
;
566 os
->symbol
.udata
.i
= is
->symbol
.udata
.i
;
571 /* Copy any private info we understand from the input section
572 to the output section. */
575 bfd_mach_o_bfd_copy_private_section_data (bfd
*ibfd
, asection
*isection
,
576 bfd
*obfd
, asection
*osection
)
578 bfd_mach_o_section
*os
= bfd_mach_o_get_mach_o_section (osection
);
579 bfd_mach_o_section
*is
= bfd_mach_o_get_mach_o_section (isection
);
581 if (ibfd
->xvec
->flavour
!= bfd_target_mach_o_flavour
582 || obfd
->xvec
->flavour
!= bfd_target_mach_o_flavour
)
585 BFD_ASSERT (is
!= NULL
&& os
!= NULL
);
587 os
->flags
= is
->flags
;
588 os
->reserved1
= is
->reserved1
;
589 os
->reserved2
= is
->reserved2
;
590 os
->reserved3
= is
->reserved3
;
596 cputype (unsigned long value
)
600 case BFD_MACH_O_CPU_TYPE_VAX
: return "VAX";
601 case BFD_MACH_O_CPU_TYPE_MC680x0
: return "MC68k";
602 case BFD_MACH_O_CPU_TYPE_I386
: return "I386";
603 case BFD_MACH_O_CPU_TYPE_MIPS
: return "MIPS";
604 case BFD_MACH_O_CPU_TYPE_MC98000
: return "MC98k";
605 case BFD_MACH_O_CPU_TYPE_HPPA
: return "HPPA";
606 case BFD_MACH_O_CPU_TYPE_ARM
: return "ARM";
607 case BFD_MACH_O_CPU_TYPE_MC88000
: return "MC88K";
608 case BFD_MACH_O_CPU_TYPE_SPARC
: return "SPARC";
609 case BFD_MACH_O_CPU_TYPE_I860
: return "I860";
610 case BFD_MACH_O_CPU_TYPE_ALPHA
: return "ALPHA";
611 case BFD_MACH_O_CPU_TYPE_POWERPC
: return "PPC";
612 case BFD_MACH_O_CPU_TYPE_POWERPC_64
: return "PPC64";
613 case BFD_MACH_O_CPU_TYPE_X86_64
: return "X86_64";
614 case BFD_MACH_O_CPU_TYPE_ARM64
: return "ARM64";
615 default: return _("<unknown>");
620 cpusubtype (unsigned long cputype
, unsigned long cpusubtype
)
622 static char buffer
[128];
625 switch (cpusubtype
& BFD_MACH_O_CPU_SUBTYPE_MASK
)
629 case BFD_MACH_O_CPU_SUBTYPE_LIB64
:
630 sprintf (buffer
, " (LIB64)"); break;
632 sprintf (buffer
, _("<unknown mask flags>")); break;
635 cpusubtype
&= ~ BFD_MACH_O_CPU_SUBTYPE_MASK
;
639 case BFD_MACH_O_CPU_TYPE_X86_64
:
640 case BFD_MACH_O_CPU_TYPE_I386
:
643 case BFD_MACH_O_CPU_SUBTYPE_X86_ALL
:
644 return strcat (buffer
, " (X86_ALL)");
650 case BFD_MACH_O_CPU_TYPE_ARM
:
653 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL
:
654 return strcat (buffer
, " (ARM_ALL)");
655 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T
:
656 return strcat (buffer
, " (ARM_V4T)");
657 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6
:
658 return strcat (buffer
, " (ARM_V6)");
659 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ
:
660 return strcat (buffer
, " (ARM_V5TEJ)");
661 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE
:
662 return strcat (buffer
, " (ARM_XSCALE)");
663 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7
:
664 return strcat (buffer
, " (ARM_V7)");
670 case BFD_MACH_O_CPU_TYPE_ARM64
:
673 case BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL
:
674 return strcat (buffer
, " (ARM64_ALL)");
675 case BFD_MACH_O_CPU_SUBTYPE_ARM64_V8
:
676 return strcat (buffer
, " (ARM64_V8)");
687 return strcat (buffer
, _(" (<unknown>)"));
693 bfd_mach_o_bfd_print_private_bfd_data (bfd
*abfd
, void *ptr
)
695 FILE * file
= (FILE *) ptr
;
696 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
698 fprintf (file
, _(" MACH-O header:\n"));
699 fprintf (file
, _(" magic: %#lx\n"), (long) mdata
->header
.magic
);
700 fprintf (file
, _(" cputype: %#lx (%s)\n"), (long) mdata
->header
.cputype
,
701 cputype (mdata
->header
.cputype
));
702 fprintf (file
, _(" cpusubtype: %#lx%s\n"), (long) mdata
->header
.cpusubtype
,
703 cpusubtype (mdata
->header
.cputype
, mdata
->header
.cpusubtype
));
704 fprintf (file
, _(" filetype: %#lx\n"), (long) mdata
->header
.filetype
);
705 fprintf (file
, _(" ncmds: %#lx\n"), (long) mdata
->header
.ncmds
);
706 fprintf (file
, _(" sizeocmds: %#lx\n"), (long) mdata
->header
.sizeofcmds
);
707 fprintf (file
, _(" flags: %#lx\n"), (long) mdata
->header
.flags
);
708 fprintf (file
, _(" version: %x\n"), mdata
->header
.version
);
713 /* Copy any private info we understand from the input bfd
714 to the output bfd. */
717 bfd_mach_o_bfd_copy_private_header_data (bfd
*ibfd
, bfd
*obfd
)
719 bfd_mach_o_data_struct
*imdata
;
720 bfd_mach_o_data_struct
*omdata
;
721 bfd_mach_o_load_command
*icmd
;
723 if (bfd_get_flavour (ibfd
) != bfd_target_mach_o_flavour
724 || bfd_get_flavour (obfd
) != bfd_target_mach_o_flavour
)
727 BFD_ASSERT (bfd_mach_o_valid (ibfd
));
728 BFD_ASSERT (bfd_mach_o_valid (obfd
));
730 imdata
= bfd_mach_o_get_data (ibfd
);
731 omdata
= bfd_mach_o_get_data (obfd
);
733 /* Copy header flags. */
734 omdata
->header
.flags
= imdata
->header
.flags
;
736 /* PR 23299. Copy the cputype. */
737 if (imdata
->header
.cputype
!= omdata
->header
.cputype
)
739 if (omdata
->header
.cputype
== 0)
740 omdata
->header
.cputype
= imdata
->header
.cputype
;
741 else if (imdata
->header
.cputype
!= 0)
742 /* Urg - what has happened ? */
743 _bfd_error_handler (_("incompatible cputypes in mach-o files: %ld vs %ld"),
744 (long) imdata
->header
.cputype
,
745 (long) omdata
->header
.cputype
);
748 /* Copy the cpusubtype. */
749 omdata
->header
.cpusubtype
= imdata
->header
.cpusubtype
;
752 for (icmd
= imdata
->first_command
; icmd
!= NULL
; icmd
= icmd
->next
)
754 bfd_mach_o_load_command
*ocmd
;
758 case BFD_MACH_O_LC_LOAD_DYLIB
:
759 case BFD_MACH_O_LC_LOAD_DYLINKER
:
760 case BFD_MACH_O_LC_DYLD_INFO
:
761 /* Command is copied. */
762 ocmd
= bfd_alloc (obfd
, sizeof (bfd_mach_o_load_command
));
766 /* Copy common fields. */
767 ocmd
->type
= icmd
->type
;
768 ocmd
->type_required
= icmd
->type_required
;
770 ocmd
->len
= icmd
->len
;
774 /* Command is not copied. */
781 case BFD_MACH_O_LC_LOAD_DYLIB
:
783 bfd_mach_o_dylib_command
*idy
= &icmd
->command
.dylib
;
784 bfd_mach_o_dylib_command
*ody
= &ocmd
->command
.dylib
;
786 ody
->name_offset
= idy
->name_offset
;
787 ody
->timestamp
= idy
->timestamp
;
788 ody
->current_version
= idy
->current_version
;
789 ody
->compatibility_version
= idy
->compatibility_version
;
790 ody
->name_str
= idy
->name_str
;
794 case BFD_MACH_O_LC_LOAD_DYLINKER
:
796 bfd_mach_o_dylinker_command
*idy
= &icmd
->command
.dylinker
;
797 bfd_mach_o_dylinker_command
*ody
= &ocmd
->command
.dylinker
;
799 ody
->name_offset
= idy
->name_offset
;
800 ody
->name_str
= idy
->name_str
;
804 case BFD_MACH_O_LC_DYLD_INFO
:
806 bfd_mach_o_dyld_info_command
*idy
= &icmd
->command
.dyld_info
;
807 bfd_mach_o_dyld_info_command
*ody
= &ocmd
->command
.dyld_info
;
809 if (bfd_mach_o_read_dyld_content (ibfd
, idy
))
811 ody
->rebase_size
= idy
->rebase_size
;
812 ody
->rebase_content
= idy
->rebase_content
;
814 ody
->bind_size
= idy
->bind_size
;
815 ody
->bind_content
= idy
->bind_content
;
817 ody
->weak_bind_size
= idy
->weak_bind_size
;
818 ody
->weak_bind_content
= idy
->weak_bind_content
;
820 ody
->lazy_bind_size
= idy
->lazy_bind_size
;
821 ody
->lazy_bind_content
= idy
->lazy_bind_content
;
823 ody
->export_size
= idy
->export_size
;
824 ody
->export_content
= idy
->export_content
;
826 /* PR 17512L: file: 730e492d. */
831 ody
->weak_bind_size
=
832 ody
->lazy_bind_size
=
833 ody
->export_size
= 0;
834 ody
->rebase_content
=
836 ody
->weak_bind_content
=
837 ody
->lazy_bind_content
=
838 ody
->export_content
= NULL
;
844 /* That command should be handled. */
848 /* Insert command. */
849 bfd_mach_o_append_command (obfd
, ocmd
);
855 /* This allows us to set up to 32 bits of flags (unless we invent some
856 fiendish scheme to subdivide). For now, we'll just set the file flags
857 without error checking - just overwrite. */
860 bfd_mach_o_bfd_set_private_flags (bfd
*abfd
, flagword flags
)
862 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
867 mdata
->header
.flags
= flags
;
871 /* Count the total number of symbols. */
874 bfd_mach_o_count_symbols (bfd
*abfd
)
876 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
878 if (mdata
->symtab
== NULL
)
880 return mdata
->symtab
->nsyms
;
884 bfd_mach_o_get_symtab_upper_bound (bfd
*abfd
)
886 long nsyms
= bfd_mach_o_count_symbols (abfd
);
888 return ((nsyms
+ 1) * sizeof (asymbol
*));
892 bfd_mach_o_canonicalize_symtab (bfd
*abfd
, asymbol
**alocation
)
894 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
895 long nsyms
= bfd_mach_o_count_symbols (abfd
);
896 bfd_mach_o_symtab_command
*sym
= mdata
->symtab
;
904 /* Do not try to read symbols if there are none. */
909 if (!bfd_mach_o_read_symtab_symbols (abfd
))
912 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
916 BFD_ASSERT (sym
->symbols
!= NULL
);
918 for (j
= 0; j
< sym
->nsyms
; j
++)
919 alocation
[j
] = &sym
->symbols
[j
].symbol
;
926 /* Create synthetic symbols for indirect symbols. */
929 bfd_mach_o_get_synthetic_symtab (bfd
*abfd
,
930 long symcount ATTRIBUTE_UNUSED
,
931 asymbol
**syms ATTRIBUTE_UNUSED
,
932 long dynsymcount ATTRIBUTE_UNUSED
,
933 asymbol
**dynsyms ATTRIBUTE_UNUSED
,
936 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
937 bfd_mach_o_dysymtab_command
*dysymtab
= mdata
->dysymtab
;
938 bfd_mach_o_symtab_command
*symtab
= mdata
->symtab
;
942 unsigned long count
, i
, j
, n
;
946 const char stub
[] = "$stub";
950 /* Stop now if no symbols or no indirect symbols. */
951 if (dysymtab
== NULL
|| dysymtab
->nindirectsyms
== 0
952 || symtab
== NULL
|| symtab
->symbols
== NULL
)
955 /* We need to allocate a bfd symbol for every indirect symbol and to
956 allocate the memory for its name. */
957 count
= dysymtab
->nindirectsyms
;
958 size
= count
* sizeof (asymbol
) + 1;
960 for (j
= 0; j
< count
; j
++)
963 unsigned int isym
= dysymtab
->indirect_syms
[j
];
965 /* Some indirect symbols are anonymous. */
966 if (isym
< symtab
->nsyms
&& (strng
= symtab
->symbols
[isym
].symbol
.name
))
967 /* PR 17512: file: f5b8eeba. */
968 size
+= strnlen (strng
, symtab
->strsize
- (strng
- symtab
->strtab
)) + sizeof (stub
);
971 s_start
= bfd_malloc (size
);
972 s
= *ret
= (asymbol
*) s_start
;
975 names
= (char *) (s
+ count
);
978 s_end
= s_start
+ size
;
981 for (i
= 0; i
< mdata
->nsects
; i
++)
983 bfd_mach_o_section
*sec
= mdata
->sections
[i
];
984 unsigned int first
, last
;
988 switch (sec
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
990 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
:
991 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
:
992 case BFD_MACH_O_S_SYMBOL_STUBS
:
993 /* Only these sections have indirect symbols. */
994 first
= sec
->reserved1
;
995 last
= first
+ bfd_mach_o_section_get_nbr_indirect (abfd
, sec
);
997 entry_size
= bfd_mach_o_section_get_entry_size (abfd
, sec
);
999 /* PR 17512: file: 08e15eec. */
1000 if (first
>= count
|| last
>= count
|| first
> last
)
1003 for (j
= first
; j
< last
; j
++)
1005 unsigned int isym
= dysymtab
->indirect_syms
[j
];
1007 /* PR 17512: file: 04d64d9b. */
1008 if (((char *) s
) + sizeof (* s
) > s_end
)
1011 s
->flags
= BSF_GLOBAL
| BSF_SYNTHETIC
;
1012 s
->section
= sec
->bfdsection
;
1013 s
->value
= addr
- sec
->addr
;
1016 if (isym
< symtab
->nsyms
1017 && symtab
->symbols
[isym
].symbol
.name
)
1019 const char *sym
= symtab
->symbols
[isym
].symbol
.name
;
1024 /* PR 17512: file: 47dfd4d2. */
1025 if (names
+ len
>= s_end
)
1027 memcpy (names
, sym
, len
);
1029 /* PR 17512: file: 18f340a4. */
1030 if (names
+ sizeof (stub
) >= s_end
)
1032 memcpy (names
, stub
, sizeof (stub
));
1033 names
+= sizeof (stub
);
1057 bfd_mach_o_get_symbol_info (bfd
*abfd ATTRIBUTE_UNUSED
,
1061 bfd_symbol_info (symbol
, ret
);
1065 bfd_mach_o_print_symbol (bfd
*abfd
,
1068 bfd_print_symbol_type how
)
1070 FILE *file
= (FILE *) afile
;
1072 bfd_mach_o_asymbol
*asym
= (bfd_mach_o_asymbol
*)symbol
;
1076 case bfd_print_symbol_name
:
1077 fprintf (file
, "%s", symbol
->name
);
1080 bfd_print_symbol_vandf (abfd
, (void *) file
, symbol
);
1081 if (asym
->n_type
& BFD_MACH_O_N_STAB
)
1082 name
= bfd_get_stab_name (asym
->n_type
);
1084 switch (asym
->n_type
& BFD_MACH_O_N_TYPE
)
1086 case BFD_MACH_O_N_UNDF
:
1087 if (symbol
->value
== 0)
1092 case BFD_MACH_O_N_ABS
:
1095 case BFD_MACH_O_N_INDR
:
1098 case BFD_MACH_O_N_PBUD
:
1101 case BFD_MACH_O_N_SECT
:
1110 fprintf (file
, " %02x %-6s %02x %04x",
1111 asym
->n_type
, name
, asym
->n_sect
, asym
->n_desc
);
1112 if ((asym
->n_type
& BFD_MACH_O_N_STAB
) == 0
1113 && (asym
->n_type
& BFD_MACH_O_N_TYPE
) == BFD_MACH_O_N_SECT
)
1114 fprintf (file
, " [%s]", symbol
->section
->name
);
1115 fprintf (file
, " %s", symbol
->name
);
1120 bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype
,
1121 bfd_mach_o_cpu_subtype msubtype
,
1122 enum bfd_architecture
*type
,
1123 unsigned long *subtype
)
1125 *subtype
= bfd_arch_unknown
;
1129 case BFD_MACH_O_CPU_TYPE_VAX
:
1130 *type
= bfd_arch_vax
;
1132 case BFD_MACH_O_CPU_TYPE_MC680x0
:
1133 *type
= bfd_arch_m68k
;
1135 case BFD_MACH_O_CPU_TYPE_I386
:
1136 *type
= bfd_arch_i386
;
1137 *subtype
= bfd_mach_i386_i386
;
1139 case BFD_MACH_O_CPU_TYPE_X86_64
:
1140 *type
= bfd_arch_i386
;
1141 *subtype
= bfd_mach_x86_64
;
1143 case BFD_MACH_O_CPU_TYPE_MIPS
:
1144 *type
= bfd_arch_mips
;
1146 case BFD_MACH_O_CPU_TYPE_MC98000
:
1147 *type
= bfd_arch_m98k
;
1149 case BFD_MACH_O_CPU_TYPE_HPPA
:
1150 *type
= bfd_arch_hppa
;
1152 case BFD_MACH_O_CPU_TYPE_ARM
:
1153 *type
= bfd_arch_arm
;
1156 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T
:
1157 *subtype
= bfd_mach_arm_4T
;
1159 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6
:
1160 *subtype
= bfd_mach_arm_4T
; /* Best fit ? */
1162 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ
:
1163 *subtype
= bfd_mach_arm_5TE
;
1165 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE
:
1166 *subtype
= bfd_mach_arm_XScale
;
1168 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7
:
1169 *subtype
= bfd_mach_arm_5TE
; /* Best fit ? */
1171 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL
:
1176 case BFD_MACH_O_CPU_TYPE_SPARC
:
1177 *type
= bfd_arch_sparc
;
1178 *subtype
= bfd_mach_sparc
;
1180 case BFD_MACH_O_CPU_TYPE_ALPHA
:
1181 *type
= bfd_arch_alpha
;
1183 case BFD_MACH_O_CPU_TYPE_POWERPC
:
1184 *type
= bfd_arch_powerpc
;
1185 *subtype
= bfd_mach_ppc
;
1187 case BFD_MACH_O_CPU_TYPE_POWERPC_64
:
1188 *type
= bfd_arch_powerpc
;
1189 *subtype
= bfd_mach_ppc64
;
1191 case BFD_MACH_O_CPU_TYPE_ARM64
:
1192 *type
= bfd_arch_aarch64
;
1193 *subtype
= bfd_mach_aarch64
;
1196 *type
= bfd_arch_unknown
;
1201 /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1202 number of bytes written or -1 in case of error. */
1205 bfd_mach_o_pad4 (bfd
*abfd
, unsigned int len
)
1209 char pad
[4] = {0,0,0,0};
1210 unsigned int padlen
= 4 - (len
% 4);
1212 if (bfd_bwrite (pad
, padlen
, abfd
) != padlen
)
1221 /* Likewise, but for a command. */
1224 bfd_mach_o_pad_command (bfd
*abfd
, unsigned int len
)
1226 unsigned int align
= bfd_mach_o_wide_p (abfd
) ? 8 : 4;
1228 if (len
% align
!= 0)
1231 unsigned int padlen
= align
- (len
% align
);
1233 if (bfd_bwrite (pad
, padlen
, abfd
) != padlen
)
1243 bfd_mach_o_write_header (bfd
*abfd
, bfd_mach_o_header
*header
)
1245 struct mach_o_header_external raw
;
1248 size
= mach_o_wide_p (header
) ?
1249 BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
1251 bfd_h_put_32 (abfd
, header
->magic
, raw
.magic
);
1252 bfd_h_put_32 (abfd
, header
->cputype
, raw
.cputype
);
1253 bfd_h_put_32 (abfd
, header
->cpusubtype
, raw
.cpusubtype
);
1254 bfd_h_put_32 (abfd
, header
->filetype
, raw
.filetype
);
1255 bfd_h_put_32 (abfd
, header
->ncmds
, raw
.ncmds
);
1256 bfd_h_put_32 (abfd
, header
->sizeofcmds
, raw
.sizeofcmds
);
1257 bfd_h_put_32 (abfd
, header
->flags
, raw
.flags
);
1259 if (mach_o_wide_p (header
))
1260 bfd_h_put_32 (abfd
, header
->reserved
, raw
.reserved
);
1262 if (bfd_seek (abfd
, 0, SEEK_SET
) != 0
1263 || bfd_bwrite (&raw
, size
, abfd
) != size
)
1270 bfd_mach_o_write_thread (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1272 bfd_mach_o_thread_command
*cmd
= &command
->command
.thread
;
1274 struct mach_o_thread_command_external raw
;
1275 unsigned int offset
;
1277 BFD_ASSERT ((command
->type
== BFD_MACH_O_LC_THREAD
)
1278 || (command
->type
== BFD_MACH_O_LC_UNIXTHREAD
));
1280 offset
= BFD_MACH_O_LC_SIZE
;
1281 for (i
= 0; i
< cmd
->nflavours
; i
++)
1283 BFD_ASSERT ((cmd
->flavours
[i
].size
% 4) == 0);
1284 BFD_ASSERT (cmd
->flavours
[i
].offset
==
1285 (command
->offset
+ offset
+ BFD_MACH_O_LC_SIZE
));
1287 bfd_h_put_32 (abfd
, cmd
->flavours
[i
].flavour
, raw
.flavour
);
1288 bfd_h_put_32 (abfd
, (cmd
->flavours
[i
].size
/ 4), raw
.count
);
1290 if (bfd_seek (abfd
, command
->offset
+ offset
, SEEK_SET
) != 0
1291 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1294 offset
+= cmd
->flavours
[i
].size
+ sizeof (raw
);
1301 bfd_mach_o_write_dylinker (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1303 bfd_mach_o_dylinker_command
*cmd
= &command
->command
.dylinker
;
1304 struct mach_o_str_command_external raw
;
1305 unsigned int namelen
;
1307 bfd_h_put_32 (abfd
, cmd
->name_offset
, raw
.str
);
1309 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1310 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1313 namelen
= strlen (cmd
->name_str
) + 1;
1314 if (bfd_bwrite (cmd
->name_str
, namelen
, abfd
) != namelen
)
1317 if (bfd_mach_o_pad_command (abfd
, namelen
) < 0)
1324 bfd_mach_o_write_dylib (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1326 bfd_mach_o_dylib_command
*cmd
= &command
->command
.dylib
;
1327 struct mach_o_dylib_command_external raw
;
1328 unsigned int namelen
;
1330 bfd_h_put_32 (abfd
, cmd
->name_offset
, raw
.name
);
1331 bfd_h_put_32 (abfd
, cmd
->timestamp
, raw
.timestamp
);
1332 bfd_h_put_32 (abfd
, cmd
->current_version
, raw
.current_version
);
1333 bfd_h_put_32 (abfd
, cmd
->compatibility_version
, raw
.compatibility_version
);
1335 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1336 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1339 namelen
= strlen (cmd
->name_str
) + 1;
1340 if (bfd_bwrite (cmd
->name_str
, namelen
, abfd
) != namelen
)
1343 if (bfd_mach_o_pad_command (abfd
, namelen
) < 0)
1350 bfd_mach_o_write_main (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1352 bfd_mach_o_main_command
*cmd
= &command
->command
.main
;
1353 struct mach_o_entry_point_command_external raw
;
1355 bfd_h_put_64 (abfd
, cmd
->entryoff
, raw
.entryoff
);
1356 bfd_h_put_64 (abfd
, cmd
->stacksize
, raw
.stacksize
);
1358 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1359 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1366 bfd_mach_o_write_dyld_info (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1368 bfd_mach_o_dyld_info_command
*cmd
= &command
->command
.dyld_info
;
1369 struct mach_o_dyld_info_command_external raw
;
1371 bfd_h_put_32 (abfd
, cmd
->rebase_off
, raw
.rebase_off
);
1372 bfd_h_put_32 (abfd
, cmd
->rebase_size
, raw
.rebase_size
);
1373 bfd_h_put_32 (abfd
, cmd
->bind_off
, raw
.bind_off
);
1374 bfd_h_put_32 (abfd
, cmd
->bind_size
, raw
.bind_size
);
1375 bfd_h_put_32 (abfd
, cmd
->weak_bind_off
, raw
.weak_bind_off
);
1376 bfd_h_put_32 (abfd
, cmd
->weak_bind_size
, raw
.weak_bind_size
);
1377 bfd_h_put_32 (abfd
, cmd
->lazy_bind_off
, raw
.lazy_bind_off
);
1378 bfd_h_put_32 (abfd
, cmd
->lazy_bind_size
, raw
.lazy_bind_size
);
1379 bfd_h_put_32 (abfd
, cmd
->export_off
, raw
.export_off
);
1380 bfd_h_put_32 (abfd
, cmd
->export_size
, raw
.export_size
);
1382 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1383 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1386 if (cmd
->rebase_size
!= 0)
1387 if (bfd_seek (abfd
, cmd
->rebase_off
, SEEK_SET
) != 0
1388 || (bfd_bwrite (cmd
->rebase_content
, cmd
->rebase_size
, abfd
) !=
1392 if (cmd
->bind_size
!= 0)
1393 if (bfd_seek (abfd
, cmd
->bind_off
, SEEK_SET
) != 0
1394 || (bfd_bwrite (cmd
->bind_content
, cmd
->bind_size
, abfd
) !=
1398 if (cmd
->weak_bind_size
!= 0)
1399 if (bfd_seek (abfd
, cmd
->weak_bind_off
, SEEK_SET
) != 0
1400 || (bfd_bwrite (cmd
->weak_bind_content
, cmd
->weak_bind_size
, abfd
) !=
1401 cmd
->weak_bind_size
))
1404 if (cmd
->lazy_bind_size
!= 0)
1405 if (bfd_seek (abfd
, cmd
->lazy_bind_off
, SEEK_SET
) != 0
1406 || (bfd_bwrite (cmd
->lazy_bind_content
, cmd
->lazy_bind_size
, abfd
) !=
1407 cmd
->lazy_bind_size
))
1410 if (cmd
->export_size
!= 0)
1411 if (bfd_seek (abfd
, cmd
->export_off
, SEEK_SET
) != 0
1412 || (bfd_bwrite (cmd
->export_content
, cmd
->export_size
, abfd
) !=
1420 bfd_mach_o_get_reloc_upper_bound (bfd
*abfd ATTRIBUTE_UNUSED
,
1423 return (asect
->reloc_count
+ 1) * sizeof (arelent
*);
1426 /* In addition to the need to byte-swap the symbol number, the bit positions
1427 of the fields in the relocation information vary per target endian-ness. */
1430 bfd_mach_o_swap_in_non_scattered_reloc (bfd
*abfd
, bfd_mach_o_reloc_info
*rel
,
1431 unsigned char *fields
)
1433 unsigned char info
= fields
[3];
1435 if (bfd_big_endian (abfd
))
1437 rel
->r_value
= (fields
[0] << 16) | (fields
[1] << 8) | fields
[2];
1438 rel
->r_type
= (info
>> BFD_MACH_O_BE_TYPE_SHIFT
) & BFD_MACH_O_TYPE_MASK
;
1439 rel
->r_pcrel
= (info
& BFD_MACH_O_BE_PCREL
) ? 1 : 0;
1440 rel
->r_length
= (info
>> BFD_MACH_O_BE_LENGTH_SHIFT
)
1441 & BFD_MACH_O_LENGTH_MASK
;
1442 rel
->r_extern
= (info
& BFD_MACH_O_BE_EXTERN
) ? 1 : 0;
1446 rel
->r_value
= (fields
[2] << 16) | (fields
[1] << 8) | fields
[0];
1447 rel
->r_type
= (info
>> BFD_MACH_O_LE_TYPE_SHIFT
) & BFD_MACH_O_TYPE_MASK
;
1448 rel
->r_pcrel
= (info
& BFD_MACH_O_LE_PCREL
) ? 1 : 0;
1449 rel
->r_length
= (info
>> BFD_MACH_O_LE_LENGTH_SHIFT
)
1450 & BFD_MACH_O_LENGTH_MASK
;
1451 rel
->r_extern
= (info
& BFD_MACH_O_LE_EXTERN
) ? 1 : 0;
1455 /* Set syms_ptr_ptr and addend of RES. */
1458 bfd_mach_o_canonicalize_non_scattered_reloc (bfd
*abfd
,
1459 bfd_mach_o_reloc_info
*reloc
,
1460 arelent
*res
, asymbol
**syms
)
1462 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1466 /* Non-scattered relocation. */
1467 reloc
->r_scattered
= 0;
1470 num
= reloc
->r_value
;
1472 if (reloc
->r_extern
)
1474 /* PR 17512: file: 8396-1185-0.004. */
1475 if (num
>= (unsigned) bfd_mach_o_count_symbols (abfd
))
1476 sym
= bfd_und_section_ptr
->symbol_ptr_ptr
;
1477 else if (syms
== NULL
)
1478 sym
= bfd_und_section_ptr
->symbol_ptr_ptr
;
1480 /* An external symbol number. */
1483 else if (num
== 0x00ffffff || num
== 0)
1485 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1486 is generic code, we don't know wether this is really a PAIR.
1487 This value is almost certainly not a valid section number, hence
1488 this specific case to avoid an assertion failure.
1489 Target specific swap_reloc_in routine should adjust that. */
1490 sym
= bfd_abs_section_ptr
->symbol_ptr_ptr
;
1494 /* PR 17512: file: 006-2964-0.004. */
1495 if (num
> mdata
->nsects
)
1498 /* A section number. */
1499 sym
= mdata
->sections
[num
- 1]->bfdsection
->symbol_ptr_ptr
;
1500 /* For a symbol defined in section S, the addend (stored in the
1501 binary) contains the address of the section. To comply with
1502 bfd convention, subtract the section address.
1503 Use the address from the header, so that the user can modify
1504 the vma of the section. */
1505 res
->addend
= -mdata
->sections
[num
- 1]->addr
;
1508 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1509 in the lower 16bits of the address value. So we have to find the
1510 'symbol' from the preceding reloc. We do this even though the
1511 section symbol is probably not needed here, because NULL symbol
1512 values cause an assert in generic BFD code. This must be done in
1513 the PPC swap_reloc_in routine. */
1514 res
->sym_ptr_ptr
= sym
;
1519 /* Do most of the work for canonicalize_relocs on RAW: create internal
1520 representation RELOC and set most fields of RES using symbol table SYMS.
1521 Each target still has to set the howto of RES and possibly adjust other
1523 Previously the Mach-O hook point was simply swap_in, but some targets
1524 (like arm64) don't follow the generic rules (symnum is a value for the
1525 non-scattered relocation ADDEND). */
1528 bfd_mach_o_pre_canonicalize_one_reloc (bfd
*abfd
,
1529 struct mach_o_reloc_info_external
*raw
,
1530 bfd_mach_o_reloc_info
*reloc
,
1531 arelent
*res
, asymbol
**syms
)
1533 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1536 addr
= bfd_get_32 (abfd
, raw
->r_address
);
1537 res
->sym_ptr_ptr
= NULL
;
1540 if (addr
& BFD_MACH_O_SR_SCATTERED
)
1543 bfd_vma symnum
= bfd_get_32 (abfd
, raw
->r_symbolnum
);
1545 /* Scattered relocation, can't be extern. */
1546 reloc
->r_scattered
= 1;
1547 reloc
->r_extern
= 0;
1549 /* Extract section and offset from r_value (symnum). */
1550 reloc
->r_value
= symnum
;
1551 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1552 end of the data for the section (e.g. in a calculation of section
1553 data length). At present, the symbol will end up associated with
1554 the following section or, if it falls within alignment padding, as
1555 null - which will assert later. */
1556 for (j
= 0; j
< mdata
->nsects
; j
++)
1558 bfd_mach_o_section
*sect
= mdata
->sections
[j
];
1559 if (symnum
>= sect
->addr
&& symnum
< sect
->addr
+ sect
->size
)
1561 res
->sym_ptr_ptr
= sect
->bfdsection
->symbol_ptr_ptr
;
1562 res
->addend
= symnum
- sect
->addr
;
1567 /* Extract the info and address fields from r_address. */
1568 reloc
->r_type
= BFD_MACH_O_GET_SR_TYPE (addr
);
1569 reloc
->r_length
= BFD_MACH_O_GET_SR_LENGTH (addr
);
1570 reloc
->r_pcrel
= addr
& BFD_MACH_O_SR_PCREL
;
1571 reloc
->r_address
= BFD_MACH_O_GET_SR_TYPE (addr
);
1572 res
->address
= BFD_MACH_O_GET_SR_ADDRESS (addr
);
1576 /* Non-scattered relocation. */
1577 reloc
->r_scattered
= 0;
1578 reloc
->r_address
= addr
;
1579 res
->address
= addr
;
1581 /* The value and info fields have to be extracted dependent on target
1583 bfd_mach_o_swap_in_non_scattered_reloc (abfd
, reloc
, raw
->r_symbolnum
);
1585 if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd
, reloc
,
1590 /* We have set up a reloc with all the information present, so the swapper
1591 can modify address, value and addend fields, if necessary, to convey
1592 information in the generic BFD reloc that is mach-o specific. */
1598 bfd_mach_o_canonicalize_relocs (bfd
*abfd
, unsigned long filepos
,
1599 unsigned long count
,
1600 arelent
*res
, asymbol
**syms
)
1602 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
1604 struct mach_o_reloc_info_external
*native_relocs
;
1605 bfd_size_type native_size
;
1607 /* Allocate and read relocs. */
1608 native_size
= count
* BFD_MACH_O_RELENT_SIZE
;
1610 /* PR 17512: file: 09477b57. */
1611 if (native_size
< count
)
1615 (struct mach_o_reloc_info_external
*) bfd_malloc (native_size
);
1616 if (native_relocs
== NULL
)
1619 if (bfd_seek (abfd
, filepos
, SEEK_SET
) != 0
1620 || bfd_bread (native_relocs
, native_size
, abfd
) != native_size
)
1623 for (i
= 0; i
< count
; i
++)
1625 if (!(*bed
->_bfd_mach_o_canonicalize_one_reloc
)(abfd
, &native_relocs
[i
],
1626 &res
[i
], syms
, res
))
1629 free (native_relocs
);
1632 free (native_relocs
);
1637 bfd_mach_o_canonicalize_reloc (bfd
*abfd
, asection
*asect
,
1638 arelent
**rels
, asymbol
**syms
)
1640 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
1644 if (asect
->reloc_count
== 0)
1647 /* No need to go further if we don't know how to read relocs. */
1648 if (bed
->_bfd_mach_o_canonicalize_one_reloc
== NULL
)
1651 if (asect
->relocation
== NULL
)
1653 if (asect
->reloc_count
* sizeof (arelent
) < asect
->reloc_count
)
1655 res
= bfd_malloc (asect
->reloc_count
* sizeof (arelent
));
1659 if (bfd_mach_o_canonicalize_relocs (abfd
, asect
->rel_filepos
,
1660 asect
->reloc_count
, res
, syms
) < 0)
1665 asect
->relocation
= res
;
1668 res
= asect
->relocation
;
1669 for (i
= 0; i
< asect
->reloc_count
; i
++)
1677 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd
*abfd
)
1679 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1681 if (mdata
->dysymtab
== NULL
)
1683 return (mdata
->dysymtab
->nextrel
+ mdata
->dysymtab
->nlocrel
+ 1)
1684 * sizeof (arelent
*);
1688 bfd_mach_o_canonicalize_dynamic_reloc (bfd
*abfd
, arelent
**rels
,
1689 struct bfd_symbol
**syms
)
1691 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1692 bfd_mach_o_dysymtab_command
*dysymtab
= mdata
->dysymtab
;
1693 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
1697 if (dysymtab
== NULL
)
1699 if (dysymtab
->nextrel
== 0 && dysymtab
->nlocrel
== 0)
1702 /* No need to go further if we don't know how to read relocs. */
1703 if (bed
->_bfd_mach_o_canonicalize_one_reloc
== NULL
)
1706 if (mdata
->dyn_reloc_cache
== NULL
)
1708 if ((dysymtab
->nextrel
+ dysymtab
->nlocrel
) * sizeof (arelent
)
1709 < (dysymtab
->nextrel
+ dysymtab
->nlocrel
))
1712 res
= bfd_malloc ((dysymtab
->nextrel
+ dysymtab
->nlocrel
)
1713 * sizeof (arelent
));
1717 if (bfd_mach_o_canonicalize_relocs (abfd
, dysymtab
->extreloff
,
1718 dysymtab
->nextrel
, res
, syms
) < 0)
1724 if (bfd_mach_o_canonicalize_relocs (abfd
, dysymtab
->locreloff
,
1726 res
+ dysymtab
->nextrel
, syms
) < 0)
1732 mdata
->dyn_reloc_cache
= res
;
1735 res
= mdata
->dyn_reloc_cache
;
1736 for (i
= 0; i
< dysymtab
->nextrel
+ dysymtab
->nlocrel
; i
++)
1742 /* In addition to the need to byte-swap the symbol number, the bit positions
1743 of the fields in the relocation information vary per target endian-ness. */
1746 bfd_mach_o_swap_out_non_scattered_reloc (bfd
*abfd
, unsigned char *fields
,
1747 bfd_mach_o_reloc_info
*rel
)
1749 unsigned char info
= 0;
1751 BFD_ASSERT (rel
->r_type
<= 15);
1752 BFD_ASSERT (rel
->r_length
<= 3);
1754 if (bfd_big_endian (abfd
))
1756 fields
[0] = (rel
->r_value
>> 16) & 0xff;
1757 fields
[1] = (rel
->r_value
>> 8) & 0xff;
1758 fields
[2] = rel
->r_value
& 0xff;
1759 info
|= rel
->r_type
<< BFD_MACH_O_BE_TYPE_SHIFT
;
1760 info
|= rel
->r_pcrel
? BFD_MACH_O_BE_PCREL
: 0;
1761 info
|= rel
->r_length
<< BFD_MACH_O_BE_LENGTH_SHIFT
;
1762 info
|= rel
->r_extern
? BFD_MACH_O_BE_EXTERN
: 0;
1766 fields
[2] = (rel
->r_value
>> 16) & 0xff;
1767 fields
[1] = (rel
->r_value
>> 8) & 0xff;
1768 fields
[0] = rel
->r_value
& 0xff;
1769 info
|= rel
->r_type
<< BFD_MACH_O_LE_TYPE_SHIFT
;
1770 info
|= rel
->r_pcrel
? BFD_MACH_O_LE_PCREL
: 0;
1771 info
|= rel
->r_length
<< BFD_MACH_O_LE_LENGTH_SHIFT
;
1772 info
|= rel
->r_extern
? BFD_MACH_O_LE_EXTERN
: 0;
1778 bfd_mach_o_write_relocs (bfd
*abfd
, bfd_mach_o_section
*section
)
1783 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
1785 sec
= section
->bfdsection
;
1786 if (sec
->reloc_count
== 0)
1789 if (bed
->_bfd_mach_o_swap_reloc_out
== NULL
)
1792 if (bfd_seek (abfd
, section
->reloff
, SEEK_SET
) != 0)
1795 /* Convert and write. */
1796 entries
= section
->bfdsection
->orelocation
;
1797 for (i
= 0; i
< section
->nreloc
; i
++)
1799 arelent
*rel
= entries
[i
];
1800 struct mach_o_reloc_info_external raw
;
1801 bfd_mach_o_reloc_info info
, *pinfo
= &info
;
1803 /* Convert relocation to an intermediate representation. */
1804 if (!(*bed
->_bfd_mach_o_swap_reloc_out
) (rel
, pinfo
))
1807 /* Lower the relocation info. */
1808 if (pinfo
->r_scattered
)
1812 v
= BFD_MACH_O_SR_SCATTERED
1813 | (pinfo
->r_pcrel
? BFD_MACH_O_SR_PCREL
: 0)
1814 | BFD_MACH_O_SET_SR_LENGTH (pinfo
->r_length
)
1815 | BFD_MACH_O_SET_SR_TYPE (pinfo
->r_type
)
1816 | BFD_MACH_O_SET_SR_ADDRESS (pinfo
->r_address
);
1817 /* Note: scattered relocs have field in reverse order... */
1818 bfd_put_32 (abfd
, v
, raw
.r_address
);
1819 bfd_put_32 (abfd
, pinfo
->r_value
, raw
.r_symbolnum
);
1823 bfd_put_32 (abfd
, pinfo
->r_address
, raw
.r_address
);
1824 bfd_mach_o_swap_out_non_scattered_reloc (abfd
, raw
.r_symbolnum
,
1828 if (bfd_bwrite (&raw
, BFD_MACH_O_RELENT_SIZE
, abfd
)
1829 != BFD_MACH_O_RELENT_SIZE
)
1836 bfd_mach_o_write_section_32 (bfd
*abfd
, bfd_mach_o_section
*section
)
1838 struct mach_o_section_32_external raw
;
1840 memcpy (raw
.sectname
, section
->sectname
, 16);
1841 memcpy (raw
.segname
, section
->segname
, 16);
1842 bfd_h_put_32 (abfd
, section
->addr
, raw
.addr
);
1843 bfd_h_put_32 (abfd
, section
->size
, raw
.size
);
1844 bfd_h_put_32 (abfd
, section
->offset
, raw
.offset
);
1845 bfd_h_put_32 (abfd
, section
->align
, raw
.align
);
1846 bfd_h_put_32 (abfd
, section
->reloff
, raw
.reloff
);
1847 bfd_h_put_32 (abfd
, section
->nreloc
, raw
.nreloc
);
1848 bfd_h_put_32 (abfd
, section
->flags
, raw
.flags
);
1849 bfd_h_put_32 (abfd
, section
->reserved1
, raw
.reserved1
);
1850 bfd_h_put_32 (abfd
, section
->reserved2
, raw
.reserved2
);
1852 if (bfd_bwrite (&raw
, BFD_MACH_O_SECTION_SIZE
, abfd
)
1853 != BFD_MACH_O_SECTION_SIZE
)
1860 bfd_mach_o_write_section_64 (bfd
*abfd
, bfd_mach_o_section
*section
)
1862 struct mach_o_section_64_external raw
;
1864 memcpy (raw
.sectname
, section
->sectname
, 16);
1865 memcpy (raw
.segname
, section
->segname
, 16);
1866 bfd_h_put_64 (abfd
, section
->addr
, raw
.addr
);
1867 bfd_h_put_64 (abfd
, section
->size
, raw
.size
);
1868 bfd_h_put_32 (abfd
, section
->offset
, raw
.offset
);
1869 bfd_h_put_32 (abfd
, section
->align
, raw
.align
);
1870 bfd_h_put_32 (abfd
, section
->reloff
, raw
.reloff
);
1871 bfd_h_put_32 (abfd
, section
->nreloc
, raw
.nreloc
);
1872 bfd_h_put_32 (abfd
, section
->flags
, raw
.flags
);
1873 bfd_h_put_32 (abfd
, section
->reserved1
, raw
.reserved1
);
1874 bfd_h_put_32 (abfd
, section
->reserved2
, raw
.reserved2
);
1875 bfd_h_put_32 (abfd
, section
->reserved3
, raw
.reserved3
);
1877 if (bfd_bwrite (&raw
, BFD_MACH_O_SECTION_64_SIZE
, abfd
)
1878 != BFD_MACH_O_SECTION_64_SIZE
)
1885 bfd_mach_o_write_segment_32 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1887 struct mach_o_segment_command_32_external raw
;
1888 bfd_mach_o_segment_command
*seg
= &command
->command
.segment
;
1889 bfd_mach_o_section
*sec
;
1891 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SEGMENT
);
1893 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
1894 if (!bfd_mach_o_write_relocs (abfd
, sec
))
1897 memcpy (raw
.segname
, seg
->segname
, 16);
1898 bfd_h_put_32 (abfd
, seg
->vmaddr
, raw
.vmaddr
);
1899 bfd_h_put_32 (abfd
, seg
->vmsize
, raw
.vmsize
);
1900 bfd_h_put_32 (abfd
, seg
->fileoff
, raw
.fileoff
);
1901 bfd_h_put_32 (abfd
, seg
->filesize
, raw
.filesize
);
1902 bfd_h_put_32 (abfd
, seg
->maxprot
, raw
.maxprot
);
1903 bfd_h_put_32 (abfd
, seg
->initprot
, raw
.initprot
);
1904 bfd_h_put_32 (abfd
, seg
->nsects
, raw
.nsects
);
1905 bfd_h_put_32 (abfd
, seg
->flags
, raw
.flags
);
1907 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1908 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1911 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
1912 if (!bfd_mach_o_write_section_32 (abfd
, sec
))
1919 bfd_mach_o_write_segment_64 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
1921 struct mach_o_segment_command_64_external raw
;
1922 bfd_mach_o_segment_command
*seg
= &command
->command
.segment
;
1923 bfd_mach_o_section
*sec
;
1925 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SEGMENT_64
);
1927 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
1928 if (!bfd_mach_o_write_relocs (abfd
, sec
))
1931 memcpy (raw
.segname
, seg
->segname
, 16);
1932 bfd_h_put_64 (abfd
, seg
->vmaddr
, raw
.vmaddr
);
1933 bfd_h_put_64 (abfd
, seg
->vmsize
, raw
.vmsize
);
1934 bfd_h_put_64 (abfd
, seg
->fileoff
, raw
.fileoff
);
1935 bfd_h_put_64 (abfd
, seg
->filesize
, raw
.filesize
);
1936 bfd_h_put_32 (abfd
, seg
->maxprot
, raw
.maxprot
);
1937 bfd_h_put_32 (abfd
, seg
->initprot
, raw
.initprot
);
1938 bfd_h_put_32 (abfd
, seg
->nsects
, raw
.nsects
);
1939 bfd_h_put_32 (abfd
, seg
->flags
, raw
.flags
);
1941 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
1942 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
1945 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
1946 if (!bfd_mach_o_write_section_64 (abfd
, sec
))
1953 bfd_mach_o_write_symtab_content (bfd
*abfd
, bfd_mach_o_symtab_command
*sym
)
1955 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
1957 unsigned int wide
= bfd_mach_o_wide_p (abfd
);
1958 struct bfd_strtab_hash
*strtab
;
1959 asymbol
**symbols
= bfd_get_outsymbols (abfd
);
1962 /* Write the symbols first. */
1963 if (bfd_seek (abfd
, sym
->symoff
, SEEK_SET
) != 0)
1966 strtab
= _bfd_stringtab_init ();
1971 /* Although we don't strictly need to do this, for compatibility with
1972 Darwin system tools, actually output an empty string for the index
1974 _bfd_stringtab_add (strtab
, "", TRUE
, FALSE
);
1976 for (i
= 0; i
< sym
->nsyms
; i
++)
1978 bfd_size_type str_index
;
1979 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
1981 if (s
->symbol
.name
== 0 || s
->symbol
.name
[0] == '\0')
1982 /* An index of 0 always means the empty string. */
1986 str_index
= _bfd_stringtab_add (strtab
, s
->symbol
.name
, TRUE
, FALSE
);
1988 if (str_index
== (bfd_size_type
) -1)
1994 struct mach_o_nlist_64_external raw
;
1996 bfd_h_put_32 (abfd
, str_index
, raw
.n_strx
);
1997 bfd_h_put_8 (abfd
, s
->n_type
, raw
.n_type
);
1998 bfd_h_put_8 (abfd
, s
->n_sect
, raw
.n_sect
);
1999 bfd_h_put_16 (abfd
, s
->n_desc
, raw
.n_desc
);
2000 bfd_h_put_64 (abfd
, s
->symbol
.section
->vma
+ s
->symbol
.value
,
2003 if (bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2008 struct mach_o_nlist_external raw
;
2010 bfd_h_put_32 (abfd
, str_index
, raw
.n_strx
);
2011 bfd_h_put_8 (abfd
, s
->n_type
, raw
.n_type
);
2012 bfd_h_put_8 (abfd
, s
->n_sect
, raw
.n_sect
);
2013 bfd_h_put_16 (abfd
, s
->n_desc
, raw
.n_desc
);
2014 bfd_h_put_32 (abfd
, s
->symbol
.section
->vma
+ s
->symbol
.value
,
2017 if (bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2021 sym
->strsize
= _bfd_stringtab_size (strtab
);
2022 sym
->stroff
= mdata
->filelen
;
2023 mdata
->filelen
+= sym
->strsize
;
2025 if (bfd_seek (abfd
, sym
->stroff
, SEEK_SET
) != 0)
2028 if (!_bfd_stringtab_emit (abfd
, strtab
))
2031 /* Pad string table. */
2032 padlen
= bfd_mach_o_pad4 (abfd
, sym
->strsize
);
2035 mdata
->filelen
+= padlen
;
2036 sym
->strsize
+= padlen
;
2041 _bfd_stringtab_free (strtab
);
2047 bfd_mach_o_write_symtab (bfd
*abfd
, bfd_mach_o_load_command
*command
)
2049 bfd_mach_o_symtab_command
*sym
= &command
->command
.symtab
;
2050 struct mach_o_symtab_command_external raw
;
2052 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SYMTAB
);
2055 bfd_h_put_32 (abfd
, sym
->symoff
, raw
.symoff
);
2056 bfd_h_put_32 (abfd
, sym
->nsyms
, raw
.nsyms
);
2057 bfd_h_put_32 (abfd
, sym
->stroff
, raw
.stroff
);
2058 bfd_h_put_32 (abfd
, sym
->strsize
, raw
.strsize
);
2060 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0
2061 || bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2067 /* Count the number of indirect symbols in the image.
2068 Requires that the sections are in their final order. */
2071 bfd_mach_o_count_indirect_symbols (bfd
*abfd
, bfd_mach_o_data_struct
*mdata
)
2074 unsigned int nisyms
= 0;
2076 for (i
= 0; i
< mdata
->nsects
; ++i
)
2078 bfd_mach_o_section
*sec
= mdata
->sections
[i
];
2080 switch (sec
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
2082 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
:
2083 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
:
2084 case BFD_MACH_O_S_SYMBOL_STUBS
:
2085 nisyms
+= bfd_mach_o_section_get_nbr_indirect (abfd
, sec
);
2094 /* Create the dysymtab. */
2097 bfd_mach_o_build_dysymtab (bfd
*abfd
, bfd_mach_o_dysymtab_command
*cmd
)
2099 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
2102 We are not going to try and fill these in yet and, moreover, we are
2103 going to bail if they are already set. */
2104 if (cmd
->nmodtab
!= 0
2106 || cmd
->nextrefsyms
!= 0)
2108 _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet"
2109 " implemented for dysymtab commands."));
2115 if (bfd_get_symcount (abfd
) > 0)
2117 asymbol
**symbols
= bfd_get_outsymbols (abfd
);
2120 /* Count the number of each kind of symbol. */
2121 for (i
= 0; i
< bfd_get_symcount (abfd
); ++i
)
2123 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
2124 if (s
->n_type
& (BFD_MACH_O_N_EXT
| BFD_MACH_O_N_PEXT
))
2128 cmd
->iextdefsym
= i
;
2129 for (; i
< bfd_get_symcount (abfd
); ++i
)
2131 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
2132 if ((s
->n_type
& BFD_MACH_O_N_TYPE
) == BFD_MACH_O_N_UNDF
)
2135 cmd
->nextdefsym
= i
- cmd
->nlocalsym
;
2136 cmd
->iundefsym
= cmd
->nextdefsym
+ cmd
->iextdefsym
;
2137 cmd
->nundefsym
= bfd_get_symcount (abfd
)
2144 cmd
->iextdefsym
= 0;
2145 cmd
->nextdefsym
= 0;
2150 cmd
->nindirectsyms
= bfd_mach_o_count_indirect_symbols (abfd
, mdata
);
2151 if (cmd
->nindirectsyms
> 0)
2156 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, 2);
2157 cmd
->indirectsymoff
= mdata
->filelen
;
2158 mdata
->filelen
+= cmd
->nindirectsyms
* 4;
2160 if (cmd
->nindirectsyms
* 4 < cmd
->nindirectsyms
)
2162 cmd
->indirect_syms
= bfd_zalloc (abfd
, cmd
->nindirectsyms
* 4);
2163 if (cmd
->indirect_syms
== NULL
)
2167 for (i
= 0; i
< mdata
->nsects
; ++i
)
2169 bfd_mach_o_section
*sec
= mdata
->sections
[i
];
2171 switch (sec
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
2173 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
:
2174 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
:
2175 case BFD_MACH_O_S_SYMBOL_STUBS
:
2178 bfd_mach_o_asymbol
**isyms
= sec
->indirect_syms
;
2180 num
= bfd_mach_o_section_get_nbr_indirect (abfd
, sec
);
2181 if (isyms
== NULL
|| num
== 0)
2183 /* Record the starting index in the reserved1 field. */
2185 for (j
= 0; j
< num
; j
++, n
++)
2187 if (isyms
[j
] == NULL
)
2188 cmd
->indirect_syms
[n
] = BFD_MACH_O_INDIRECT_SYM_LOCAL
;
2189 else if (isyms
[j
]->symbol
.section
== bfd_abs_section_ptr
2190 && ! (isyms
[j
]->n_type
& BFD_MACH_O_N_EXT
))
2191 cmd
->indirect_syms
[n
] = BFD_MACH_O_INDIRECT_SYM_LOCAL
2192 | BFD_MACH_O_INDIRECT_SYM_ABS
;
2194 cmd
->indirect_syms
[n
] = isyms
[j
]->symbol
.udata
.i
;
2207 /* Write a dysymtab command.
2208 TODO: Possibly coalesce writes of smaller objects. */
2211 bfd_mach_o_write_dysymtab (bfd
*abfd
, bfd_mach_o_load_command
*command
)
2213 bfd_mach_o_dysymtab_command
*cmd
= &command
->command
.dysymtab
;
2215 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_DYSYMTAB
);
2217 if (cmd
->nmodtab
!= 0)
2221 if (bfd_seek (abfd
, cmd
->modtaboff
, SEEK_SET
) != 0)
2224 for (i
= 0; i
< cmd
->nmodtab
; i
++)
2226 bfd_mach_o_dylib_module
*module
= &cmd
->dylib_module
[i
];
2230 iinit
= module
->iinit
& 0xffff;
2231 iinit
|= ((module
->iterm
& 0xffff) << 16);
2233 ninit
= module
->ninit
& 0xffff;
2234 ninit
|= ((module
->nterm
& 0xffff) << 16);
2236 if (bfd_mach_o_wide_p (abfd
))
2238 struct mach_o_dylib_module_64_external w
;
2240 bfd_h_put_32 (abfd
, module
->module_name_idx
, &w
.module_name
);
2241 bfd_h_put_32 (abfd
, module
->iextdefsym
, &w
.iextdefsym
);
2242 bfd_h_put_32 (abfd
, module
->nextdefsym
, &w
.nextdefsym
);
2243 bfd_h_put_32 (abfd
, module
->irefsym
, &w
.irefsym
);
2244 bfd_h_put_32 (abfd
, module
->nrefsym
, &w
.nrefsym
);
2245 bfd_h_put_32 (abfd
, module
->ilocalsym
, &w
.ilocalsym
);
2246 bfd_h_put_32 (abfd
, module
->nlocalsym
, &w
.nlocalsym
);
2247 bfd_h_put_32 (abfd
, module
->iextrel
, &w
.iextrel
);
2248 bfd_h_put_32 (abfd
, module
->nextrel
, &w
.nextrel
);
2249 bfd_h_put_32 (abfd
, iinit
, &w
.iinit_iterm
);
2250 bfd_h_put_32 (abfd
, ninit
, &w
.ninit_nterm
);
2251 bfd_h_put_64 (abfd
, module
->objc_module_info_addr
,
2252 &w
.objc_module_info_addr
);
2253 bfd_h_put_32 (abfd
, module
->objc_module_info_size
,
2254 &w
.objc_module_info_size
);
2256 if (bfd_bwrite ((void *) &w
, sizeof (w
), abfd
) != sizeof (w
))
2261 struct mach_o_dylib_module_external n
;
2263 bfd_h_put_32 (abfd
, module
->module_name_idx
, &n
.module_name
);
2264 bfd_h_put_32 (abfd
, module
->iextdefsym
, &n
.iextdefsym
);
2265 bfd_h_put_32 (abfd
, module
->nextdefsym
, &n
.nextdefsym
);
2266 bfd_h_put_32 (abfd
, module
->irefsym
, &n
.irefsym
);
2267 bfd_h_put_32 (abfd
, module
->nrefsym
, &n
.nrefsym
);
2268 bfd_h_put_32 (abfd
, module
->ilocalsym
, &n
.ilocalsym
);
2269 bfd_h_put_32 (abfd
, module
->nlocalsym
, &n
.nlocalsym
);
2270 bfd_h_put_32 (abfd
, module
->iextrel
, &n
.iextrel
);
2271 bfd_h_put_32 (abfd
, module
->nextrel
, &n
.nextrel
);
2272 bfd_h_put_32 (abfd
, iinit
, &n
.iinit_iterm
);
2273 bfd_h_put_32 (abfd
, ninit
, &n
.ninit_nterm
);
2274 bfd_h_put_32 (abfd
, module
->objc_module_info_addr
,
2275 &n
.objc_module_info_addr
);
2276 bfd_h_put_32 (abfd
, module
->objc_module_info_size
,
2277 &n
.objc_module_info_size
);
2279 if (bfd_bwrite ((void *) &n
, sizeof (n
), abfd
) != sizeof (n
))
2289 if (bfd_seek (abfd
, cmd
->tocoff
, SEEK_SET
) != 0)
2292 for (i
= 0; i
< cmd
->ntoc
; i
++)
2294 struct mach_o_dylib_table_of_contents_external raw
;
2295 bfd_mach_o_dylib_table_of_content
*toc
= &cmd
->dylib_toc
[i
];
2297 bfd_h_put_32 (abfd
, toc
->symbol_index
, &raw
.symbol_index
);
2298 bfd_h_put_32 (abfd
, toc
->module_index
, &raw
.module_index
);
2300 if (bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2305 if (cmd
->nindirectsyms
> 0)
2309 if (bfd_seek (abfd
, cmd
->indirectsymoff
, SEEK_SET
) != 0)
2312 for (i
= 0; i
< cmd
->nindirectsyms
; ++i
)
2314 unsigned char raw
[4];
2316 bfd_h_put_32 (abfd
, cmd
->indirect_syms
[i
], &raw
);
2317 if (bfd_bwrite (raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2322 if (cmd
->nextrefsyms
!= 0)
2326 if (bfd_seek (abfd
, cmd
->extrefsymoff
, SEEK_SET
) != 0)
2329 for (i
= 0; i
< cmd
->nextrefsyms
; i
++)
2332 unsigned char raw
[4];
2333 bfd_mach_o_dylib_reference
*ref
= &cmd
->ext_refs
[i
];
2335 /* Fields isym and flags are written as bit-fields, thus we need
2336 a specific processing for endianness. */
2338 if (bfd_big_endian (abfd
))
2340 v
= ((ref
->isym
& 0xffffff) << 8);
2341 v
|= ref
->flags
& 0xff;
2345 v
= ref
->isym
& 0xffffff;
2346 v
|= ((ref
->flags
& 0xff) << 24);
2349 bfd_h_put_32 (abfd
, v
, raw
);
2350 if (bfd_bwrite (raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2356 if (bfd_seek (abfd
, command
->offset
+ BFD_MACH_O_LC_SIZE
, SEEK_SET
) != 0)
2360 struct mach_o_dysymtab_command_external raw
;
2362 bfd_h_put_32 (abfd
, cmd
->ilocalsym
, &raw
.ilocalsym
);
2363 bfd_h_put_32 (abfd
, cmd
->nlocalsym
, &raw
.nlocalsym
);
2364 bfd_h_put_32 (abfd
, cmd
->iextdefsym
, &raw
.iextdefsym
);
2365 bfd_h_put_32 (abfd
, cmd
->nextdefsym
, &raw
.nextdefsym
);
2366 bfd_h_put_32 (abfd
, cmd
->iundefsym
, &raw
.iundefsym
);
2367 bfd_h_put_32 (abfd
, cmd
->nundefsym
, &raw
.nundefsym
);
2368 bfd_h_put_32 (abfd
, cmd
->tocoff
, &raw
.tocoff
);
2369 bfd_h_put_32 (abfd
, cmd
->ntoc
, &raw
.ntoc
);
2370 bfd_h_put_32 (abfd
, cmd
->modtaboff
, &raw
.modtaboff
);
2371 bfd_h_put_32 (abfd
, cmd
->nmodtab
, &raw
.nmodtab
);
2372 bfd_h_put_32 (abfd
, cmd
->extrefsymoff
, &raw
.extrefsymoff
);
2373 bfd_h_put_32 (abfd
, cmd
->nextrefsyms
, &raw
.nextrefsyms
);
2374 bfd_h_put_32 (abfd
, cmd
->indirectsymoff
, &raw
.indirectsymoff
);
2375 bfd_h_put_32 (abfd
, cmd
->nindirectsyms
, &raw
.nindirectsyms
);
2376 bfd_h_put_32 (abfd
, cmd
->extreloff
, &raw
.extreloff
);
2377 bfd_h_put_32 (abfd
, cmd
->nextrel
, &raw
.nextrel
);
2378 bfd_h_put_32 (abfd
, cmd
->locreloff
, &raw
.locreloff
);
2379 bfd_h_put_32 (abfd
, cmd
->nlocrel
, &raw
.nlocrel
);
2381 if (bfd_bwrite (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
2389 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol
*s
)
2391 unsigned mtyp
= s
->n_type
& BFD_MACH_O_N_TYPE
;
2393 /* Just leave debug symbols where they are (pretend they are local, and
2394 then they will just be sorted on position). */
2395 if (s
->n_type
& BFD_MACH_O_N_STAB
)
2398 /* Local (we should never see an undefined local AFAICT). */
2399 if (! (s
->n_type
& (BFD_MACH_O_N_EXT
| BFD_MACH_O_N_PEXT
)))
2402 /* Common symbols look like undefined externs. */
2403 if (mtyp
== BFD_MACH_O_N_UNDF
)
2406 /* A defined non-local, non-debug symbol. */
2411 bfd_mach_o_cf_symbols (const void *a
, const void *b
)
2413 bfd_mach_o_asymbol
*sa
= *(bfd_mach_o_asymbol
**) a
;
2414 bfd_mach_o_asymbol
*sb
= *(bfd_mach_o_asymbol
**) b
;
2415 unsigned int soa
, sob
;
2417 soa
= bfd_mach_o_primary_symbol_sort_key (sa
);
2418 sob
= bfd_mach_o_primary_symbol_sort_key (sb
);
2425 /* If it's local or stab, just preserve the input order. */
2428 if (sa
->symbol
.udata
.i
< sb
->symbol
.udata
.i
)
2430 if (sa
->symbol
.udata
.i
> sb
->symbol
.udata
.i
)
2433 /* This is probably an error. */
2437 /* The second sort key is name. */
2438 return strcmp (sa
->symbol
.name
, sb
->symbol
.name
);
2441 /* Process the symbols.
2443 This should be OK for single-module files - but it is not likely to work
2444 for multi-module shared libraries.
2446 (a) If the application has not filled in the relevant mach-o fields, make
2449 (b) Order them, like this:
2452 ( ii) external defined
2454 (iii) external undefined/common
2461 bfd_mach_o_mangle_symbols (bfd
*abfd
)
2464 asymbol
**symbols
= bfd_get_outsymbols (abfd
);
2466 if (symbols
== NULL
|| bfd_get_symcount (abfd
) == 0)
2469 for (i
= 0; i
< bfd_get_symcount (abfd
); i
++)
2471 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
2473 /* We use this value, which is out-of-range as a symbol index, to signal
2474 that the mach-o-specific data are not filled in and need to be created
2475 from the bfd values. It is much preferable for the application to do
2476 this, since more meaningful diagnostics can be made that way. */
2478 if (s
->symbol
.udata
.i
== SYM_MACHO_FIELDS_UNSET
)
2480 /* No symbol information has been set - therefore determine
2481 it from the bfd symbol flags/info. */
2482 if (s
->symbol
.section
== bfd_abs_section_ptr
)
2483 s
->n_type
= BFD_MACH_O_N_ABS
;
2484 else if (s
->symbol
.section
== bfd_und_section_ptr
)
2486 s
->n_type
= BFD_MACH_O_N_UNDF
;
2487 if (s
->symbol
.flags
& BSF_WEAK
)
2488 s
->n_desc
|= BFD_MACH_O_N_WEAK_REF
;
2489 /* mach-o automatically makes undefined symbols extern. */
2490 s
->n_type
|= BFD_MACH_O_N_EXT
;
2491 s
->symbol
.flags
|= BSF_GLOBAL
;
2493 else if (s
->symbol
.section
== bfd_com_section_ptr
)
2495 s
->n_type
= BFD_MACH_O_N_UNDF
| BFD_MACH_O_N_EXT
;
2496 s
->symbol
.flags
|= BSF_GLOBAL
;
2499 s
->n_type
= BFD_MACH_O_N_SECT
;
2501 if (s
->symbol
.flags
& BSF_GLOBAL
)
2502 s
->n_type
|= BFD_MACH_O_N_EXT
;
2505 /* Put the section index in, where required. */
2506 if ((s
->symbol
.section
!= bfd_abs_section_ptr
2507 && s
->symbol
.section
!= bfd_und_section_ptr
2508 && s
->symbol
.section
!= bfd_com_section_ptr
)
2509 || ((s
->n_type
& BFD_MACH_O_N_STAB
) != 0
2510 && s
->symbol
.name
== NULL
))
2511 s
->n_sect
= s
->symbol
.section
->output_section
->target_index
;
2513 /* Number to preserve order for local and debug syms. */
2514 s
->symbol
.udata
.i
= i
;
2517 /* Sort the symbols. */
2518 qsort ((void *) symbols
, (size_t) bfd_get_symcount (abfd
),
2519 sizeof (asymbol
*), bfd_mach_o_cf_symbols
);
2521 for (i
= 0; i
< bfd_get_symcount (abfd
); ++i
)
2523 bfd_mach_o_asymbol
*s
= (bfd_mach_o_asymbol
*)symbols
[i
];
2524 s
->symbol
.udata
.i
= i
; /* renumber. */
2530 /* We build a flat table of sections, which can be re-ordered if necessary.
2531 Fill in the section number and other mach-o-specific data. */
2534 bfd_mach_o_mangle_sections (bfd
*abfd
, bfd_mach_o_data_struct
*mdata
)
2537 unsigned target_index
;
2540 nsect
= bfd_count_sections (abfd
);
2542 /* Don't do it if it's already set - assume the application knows what it's
2544 if (mdata
->nsects
== nsect
2545 && (mdata
->nsects
== 0 || mdata
->sections
!= NULL
))
2548 /* We need to check that this can be done... */
2551 _bfd_error_handler (_("mach-o: there are too many sections (%u)"
2552 " maximum is 255,\n"), nsect
);
2556 mdata
->nsects
= nsect
;
2557 mdata
->sections
= bfd_alloc2 (abfd
,
2558 mdata
->nsects
, sizeof (bfd_mach_o_section
*));
2559 if (mdata
->sections
== NULL
)
2562 /* Create Mach-O sections.
2563 Section type, attribute and align should have been set when the
2564 section was created - either read in or specified. */
2566 for (sec
= abfd
->sections
; sec
; sec
= sec
->next
)
2568 unsigned bfd_align
= bfd_get_section_alignment (abfd
, sec
);
2569 bfd_mach_o_section
*msect
= bfd_mach_o_get_mach_o_section (sec
);
2571 mdata
->sections
[target_index
] = msect
;
2573 msect
->addr
= bfd_get_section_vma (abfd
, sec
);
2574 msect
->size
= bfd_get_section_size (sec
);
2576 /* Use the largest alignment set, in case it was bumped after the
2577 section was created. */
2578 msect
->align
= msect
->align
> bfd_align
? msect
->align
: bfd_align
;
2581 sec
->target_index
= ++target_index
;
2588 bfd_mach_o_write_contents (bfd
*abfd
)
2590 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
2591 bfd_mach_o_load_command
*cmd
;
2592 bfd_mach_o_symtab_command
*symtab
= NULL
;
2593 bfd_mach_o_dysymtab_command
*dysymtab
= NULL
;
2594 bfd_mach_o_segment_command
*linkedit
= NULL
;
2596 /* Make the commands, if not already present. */
2597 if (!abfd
->output_has_begun
&& !bfd_mach_o_build_commands (abfd
))
2599 abfd
->output_has_begun
= TRUE
;
2601 /* Write the header. */
2602 if (!bfd_mach_o_write_header (abfd
, &mdata
->header
))
2605 /* First pass: allocate the linkedit segment. */
2606 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
2609 case BFD_MACH_O_LC_SEGMENT_64
:
2610 case BFD_MACH_O_LC_SEGMENT
:
2611 if (strcmp (cmd
->command
.segment
.segname
, "__LINKEDIT") == 0)
2612 linkedit
= &cmd
->command
.segment
;
2614 case BFD_MACH_O_LC_SYMTAB
:
2615 symtab
= &cmd
->command
.symtab
;
2617 case BFD_MACH_O_LC_DYSYMTAB
:
2618 dysymtab
= &cmd
->command
.dysymtab
;
2620 case BFD_MACH_O_LC_DYLD_INFO
:
2622 bfd_mach_o_dyld_info_command
*di
= &cmd
->command
.dyld_info
;
2624 if (di
->rebase_size
!= 0)
2626 di
->rebase_off
= mdata
->filelen
;
2627 mdata
->filelen
+= di
->rebase_size
;
2629 if (di
->bind_size
!= 0)
2631 di
->bind_off
= mdata
->filelen
;
2632 mdata
->filelen
+= di
->bind_size
;
2634 if (di
->weak_bind_size
!= 0)
2636 di
->weak_bind_off
= mdata
->filelen
;
2637 mdata
->filelen
+= di
->weak_bind_size
;
2639 if (di
->lazy_bind_size
!= 0)
2641 di
->lazy_bind_off
= mdata
->filelen
;
2642 mdata
->filelen
+= di
->lazy_bind_size
;
2644 if (di
->export_size
!= 0)
2646 di
->export_off
= mdata
->filelen
;
2647 mdata
->filelen
+= di
->export_size
;
2651 case BFD_MACH_O_LC_LOAD_DYLIB
:
2652 case BFD_MACH_O_LC_LOAD_DYLINKER
:
2653 case BFD_MACH_O_LC_MAIN
:
2654 /* Nothing to do. */
2658 (_("unable to allocate data for load command %#x"),
2663 /* Specially handle symtab and dysymtab. */
2665 /* Pre-allocate the symbol table (but not the string table). The reason
2666 is that the dysymtab is after the symbol table but before the string
2667 table (required by the native strip tool). */
2670 unsigned int symlen
;
2671 unsigned int wide
= bfd_mach_o_wide_p (abfd
);
2673 symlen
= wide
? BFD_MACH_O_NLIST_64_SIZE
: BFD_MACH_O_NLIST_SIZE
;
2675 /* Align for symbols. */
2676 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, wide
? 3 : 2);
2677 symtab
->symoff
= mdata
->filelen
;
2679 symtab
->nsyms
= bfd_get_symcount (abfd
);
2680 mdata
->filelen
+= symtab
->nsyms
* symlen
;
2683 /* Build the dysymtab. */
2684 if (dysymtab
!= NULL
)
2685 if (!bfd_mach_o_build_dysymtab (abfd
, dysymtab
))
2688 /* Write symtab and strtab. */
2690 if (!bfd_mach_o_write_symtab_content (abfd
, symtab
))
2693 /* Adjust linkedit size. */
2694 if (linkedit
!= NULL
)
2696 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2698 linkedit
->vmsize
= mdata
->filelen
- linkedit
->fileoff
;
2699 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2700 linkedit
->filesize
= mdata
->filelen
- linkedit
->fileoff
;
2702 linkedit
->initprot
= BFD_MACH_O_PROT_READ
;
2703 linkedit
->maxprot
= BFD_MACH_O_PROT_READ
| BFD_MACH_O_PROT_WRITE
2704 | BFD_MACH_O_PROT_EXECUTE
;
2707 /* Second pass: write commands. */
2708 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
2710 struct mach_o_load_command_external raw
;
2711 unsigned long typeflag
;
2713 typeflag
= cmd
->type
| (cmd
->type_required
? BFD_MACH_O_LC_REQ_DYLD
: 0);
2715 bfd_h_put_32 (abfd
, typeflag
, raw
.cmd
);
2716 bfd_h_put_32 (abfd
, cmd
->len
, raw
.cmdsize
);
2718 if (bfd_seek (abfd
, cmd
->offset
, SEEK_SET
) != 0
2719 || bfd_bwrite (&raw
, BFD_MACH_O_LC_SIZE
, abfd
) != 8)
2724 case BFD_MACH_O_LC_SEGMENT
:
2725 if (!bfd_mach_o_write_segment_32 (abfd
, cmd
))
2728 case BFD_MACH_O_LC_SEGMENT_64
:
2729 if (!bfd_mach_o_write_segment_64 (abfd
, cmd
))
2732 case BFD_MACH_O_LC_SYMTAB
:
2733 if (!bfd_mach_o_write_symtab (abfd
, cmd
))
2736 case BFD_MACH_O_LC_DYSYMTAB
:
2737 if (!bfd_mach_o_write_dysymtab (abfd
, cmd
))
2740 case BFD_MACH_O_LC_THREAD
:
2741 case BFD_MACH_O_LC_UNIXTHREAD
:
2742 if (!bfd_mach_o_write_thread (abfd
, cmd
))
2745 case BFD_MACH_O_LC_LOAD_DYLIB
:
2746 if (!bfd_mach_o_write_dylib (abfd
, cmd
))
2749 case BFD_MACH_O_LC_LOAD_DYLINKER
:
2750 if (!bfd_mach_o_write_dylinker (abfd
, cmd
))
2753 case BFD_MACH_O_LC_MAIN
:
2754 if (!bfd_mach_o_write_main (abfd
, cmd
))
2757 case BFD_MACH_O_LC_DYLD_INFO
:
2758 if (!bfd_mach_o_write_dyld_info (abfd
, cmd
))
2763 (_("unable to write unknown load command %#x"),
2773 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command
*seg
,
2774 bfd_mach_o_section
*s
)
2776 if (seg
->sect_head
== NULL
)
2779 seg
->sect_tail
->next
= s
;
2783 /* Create section Mach-O flags from BFD flags. */
2786 bfd_mach_o_set_section_flags_from_bfd (bfd
*abfd ATTRIBUTE_UNUSED
,
2790 bfd_mach_o_section
*s
= bfd_mach_o_get_mach_o_section (sec
);
2792 /* Create default flags. */
2793 bfd_flags
= bfd_get_section_flags (abfd
, sec
);
2794 if ((bfd_flags
& SEC_CODE
) == SEC_CODE
)
2795 s
->flags
= BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2796 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2797 | BFD_MACH_O_S_REGULAR
;
2798 else if ((bfd_flags
& (SEC_ALLOC
| SEC_LOAD
)) == SEC_ALLOC
)
2799 s
->flags
= BFD_MACH_O_S_ZEROFILL
;
2800 else if (bfd_flags
& SEC_DEBUGGING
)
2801 s
->flags
= BFD_MACH_O_S_REGULAR
| BFD_MACH_O_S_ATTR_DEBUG
;
2803 s
->flags
= BFD_MACH_O_S_REGULAR
;
2807 bfd_mach_o_build_obj_seg_command (bfd
*abfd
, bfd_mach_o_segment_command
*seg
)
2809 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
2813 seg
->fileoff
= mdata
->filelen
;
2814 seg
->initprot
= BFD_MACH_O_PROT_READ
| BFD_MACH_O_PROT_WRITE
2815 | BFD_MACH_O_PROT_EXECUTE
;
2816 seg
->maxprot
= seg
->initprot
;
2818 /* Append sections to the segment.
2820 This is a little tedious, we have to honor the need to account zerofill
2821 sections after all the rest. This forces us to do the calculation of
2822 total vmsize in three passes so that any alignment increments are
2823 properly accounted. */
2824 for (i
= 0; i
< mdata
->nsects
; ++i
)
2826 bfd_mach_o_section
*s
= mdata
->sections
[i
];
2827 asection
*sec
= s
->bfdsection
;
2829 /* Although we account for zerofill section sizes in vm order, they are
2830 placed in the file in source sequence. */
2831 bfd_mach_o_append_section_to_segment (seg
, s
);
2834 /* Zerofill sections have zero file size & offset, the only content
2835 written to the file is the symbols. */
2836 if ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
) == BFD_MACH_O_S_ZEROFILL
2837 || ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
2838 == BFD_MACH_O_S_GB_ZEROFILL
))
2841 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2842 sections, even those with zero size. */
2845 seg
->vmsize
= FILE_ALIGN (seg
->vmsize
, s
->align
);
2846 seg
->vmsize
+= s
->size
;
2848 /* MH_OBJECT files have unaligned content. */
2851 seg
->filesize
= FILE_ALIGN (seg
->filesize
, s
->align
);
2852 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, s
->align
);
2854 seg
->filesize
+= s
->size
;
2856 /* The system tools write even zero-sized sections with an offset
2857 field set to the current file position. */
2858 s
->offset
= mdata
->filelen
;
2861 sec
->filepos
= s
->offset
;
2862 mdata
->filelen
+= s
->size
;
2865 /* Now pass through again, for zerofill, only now we just update the
2866 vmsize, and then for zerofill_GB. */
2867 for (j
= 0; j
< 2; j
++)
2872 stype
= BFD_MACH_O_S_ZEROFILL
;
2874 stype
= BFD_MACH_O_S_GB_ZEROFILL
;
2876 for (i
= 0; i
< mdata
->nsects
; ++i
)
2878 bfd_mach_o_section
*s
= mdata
->sections
[i
];
2880 if ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
) != stype
)
2885 seg
->vmsize
= FILE_ALIGN (seg
->vmsize
, s
->align
);
2886 seg
->vmsize
+= s
->size
;
2891 /* Allocate space for the relocations. */
2892 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, 2);
2894 for (i
= 0; i
< mdata
->nsects
; ++i
)
2896 bfd_mach_o_section
*ms
= mdata
->sections
[i
];
2897 asection
*sec
= ms
->bfdsection
;
2899 ms
->nreloc
= sec
->reloc_count
;
2900 if (ms
->nreloc
== 0)
2902 /* Clear nreloc and reloff if there is no relocs. */
2906 sec
->rel_filepos
= mdata
->filelen
;
2907 ms
->reloff
= sec
->rel_filepos
;
2908 mdata
->filelen
+= sec
->reloc_count
* BFD_MACH_O_RELENT_SIZE
;
2915 bfd_mach_o_build_exec_seg_command (bfd
*abfd
, bfd_mach_o_segment_command
*seg
)
2917 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
2919 bfd_vma pagemask
= bfd_mach_o_get_backend_data (abfd
)->page_size
- 1;
2921 bfd_mach_o_section
*s
;
2925 seg
->fileoff
= mdata
->filelen
;
2930 /* Append sections to the segment. We assume they are properly ordered
2931 by vma (but we check that). */
2933 for (i
= 0; i
< mdata
->nsects
; ++i
)
2935 s
= mdata
->sections
[i
];
2937 /* Consider only sections for this segment. */
2938 if (strcmp (seg
->segname
, s
->segname
) != 0)
2941 bfd_mach_o_append_section_to_segment (seg
, s
);
2946 /* xgettext:c-format */
2947 (_("section address (%#" PRIx64
") "
2948 "below start of segment (%#" PRIx64
")"),
2949 (uint64_t) s
->addr
, (uint64_t) vma
);
2953 vma
= s
->addr
+ s
->size
;
2956 /* Set segment file offset: make it page aligned. */
2957 vma
= seg
->sect_head
->addr
;
2958 seg
->vmaddr
= vma
& ~pagemask
;
2959 if ((mdata
->filelen
& pagemask
) > (vma
& pagemask
))
2960 mdata
->filelen
+= pagemask
+ 1;
2961 seg
->fileoff
= mdata
->filelen
& ~pagemask
;
2962 mdata
->filelen
= seg
->fileoff
+ (vma
& pagemask
);
2964 /* Set section file offset. */
2965 for (s
= seg
->sect_head
; s
!= NULL
; s
= s
->next
)
2967 asection
*sec
= s
->bfdsection
;
2968 flagword flags
= bfd_get_section_flags (abfd
, sec
);
2970 /* Adjust segment size. */
2971 seg
->vmsize
= FILE_ALIGN (seg
->vmsize
, s
->align
);
2972 seg
->vmsize
+= s
->size
;
2974 /* File offset and length. */
2975 seg
->filesize
= FILE_ALIGN (seg
->filesize
, s
->align
);
2977 if ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
) != BFD_MACH_O_S_ZEROFILL
2978 && ((s
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
2979 != BFD_MACH_O_S_GB_ZEROFILL
))
2981 mdata
->filelen
= FILE_ALIGN (mdata
->filelen
, s
->align
);
2983 s
->offset
= mdata
->filelen
;
2984 s
->bfdsection
->filepos
= s
->offset
;
2986 seg
->filesize
+= s
->size
;
2987 mdata
->filelen
+= s
->size
;
2992 s
->bfdsection
->filepos
= 0;
2995 /* Set protection. */
2996 if (flags
& SEC_LOAD
)
2998 if (flags
& SEC_CODE
)
2999 seg
->initprot
|= BFD_MACH_O_PROT_READ
| BFD_MACH_O_PROT_EXECUTE
;
3000 if ((flags
& (SEC_DATA
| SEC_READONLY
)) == SEC_DATA
)
3001 seg
->initprot
|= BFD_MACH_O_PROT_WRITE
| BFD_MACH_O_PROT_READ
;
3004 /* Relocs shouldn't appear in non-object files. */
3005 if (s
->bfdsection
->reloc_count
!= 0)
3010 if (seg
->initprot
!= 0)
3011 seg
->maxprot
= BFD_MACH_O_PROT_READ
| BFD_MACH_O_PROT_WRITE
3012 | BFD_MACH_O_PROT_EXECUTE
;
3016 /* Round segment size (and file size). */
3017 seg
->vmsize
= (seg
->vmsize
+ pagemask
) & ~pagemask
;
3018 seg
->filesize
= (seg
->filesize
+ pagemask
) & ~pagemask
;
3019 mdata
->filelen
= (mdata
->filelen
+ pagemask
) & ~pagemask
;
3024 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
3025 fields in header. */
3028 bfd_mach_o_layout_commands (bfd_mach_o_data_struct
*mdata
)
3030 unsigned wide
= mach_o_wide_p (&mdata
->header
);
3031 unsigned int hdrlen
;
3033 bfd_mach_o_load_command
*cmd
;
3035 bfd_boolean ret
= TRUE
;
3037 hdrlen
= wide
? BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
3038 align
= wide
? 8 - 1 : 4 - 1;
3040 mdata
->header
.ncmds
= 0;
3042 for (cmd
= mdata
->first_command
; cmd
; cmd
= cmd
->next
)
3044 mdata
->header
.ncmds
++;
3045 cmd
->offset
= offset
;
3049 case BFD_MACH_O_LC_SEGMENT_64
:
3050 cmd
->len
= BFD_MACH_O_LC_SEGMENT_64_SIZE
3051 + BFD_MACH_O_SECTION_64_SIZE
* cmd
->command
.segment
.nsects
;
3053 case BFD_MACH_O_LC_SEGMENT
:
3054 cmd
->len
= BFD_MACH_O_LC_SEGMENT_SIZE
3055 + BFD_MACH_O_SECTION_SIZE
* cmd
->command
.segment
.nsects
;
3057 case BFD_MACH_O_LC_SYMTAB
:
3058 cmd
->len
= sizeof (struct mach_o_symtab_command_external
)
3059 + BFD_MACH_O_LC_SIZE
;
3061 case BFD_MACH_O_LC_DYSYMTAB
:
3062 cmd
->len
= sizeof (struct mach_o_dysymtab_command_external
)
3063 + BFD_MACH_O_LC_SIZE
;
3065 case BFD_MACH_O_LC_LOAD_DYLIB
:
3066 cmd
->len
= sizeof (struct mach_o_dylib_command_external
)
3067 + BFD_MACH_O_LC_SIZE
;
3068 cmd
->command
.dylib
.name_offset
= cmd
->len
;
3069 cmd
->len
+= strlen (cmd
->command
.dylib
.name_str
);
3070 cmd
->len
= (cmd
->len
+ align
) & ~align
;
3072 case BFD_MACH_O_LC_LOAD_DYLINKER
:
3073 cmd
->len
= sizeof (struct mach_o_str_command_external
)
3074 + BFD_MACH_O_LC_SIZE
;
3075 cmd
->command
.dylinker
.name_offset
= cmd
->len
;
3076 cmd
->len
+= strlen (cmd
->command
.dylinker
.name_str
);
3077 cmd
->len
= (cmd
->len
+ align
) & ~align
;
3079 case BFD_MACH_O_LC_MAIN
:
3080 cmd
->len
= sizeof (struct mach_o_entry_point_command_external
)
3081 + BFD_MACH_O_LC_SIZE
;
3083 case BFD_MACH_O_LC_DYLD_INFO
:
3084 cmd
->len
= sizeof (struct mach_o_dyld_info_command_external
)
3085 + BFD_MACH_O_LC_SIZE
;
3089 (_("unable to layout unknown load command %#x"),
3095 BFD_ASSERT (cmd
->len
% (align
+ 1) == 0);
3098 mdata
->header
.sizeofcmds
= offset
- hdrlen
;
3099 mdata
->filelen
= offset
;
3104 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
3108 bfd_mach_o_init_segment (bfd_mach_o_data_struct
*mdata
,
3109 bfd_mach_o_load_command
*cmd
,
3110 const char *segname
, unsigned int nbr_sect
)
3112 bfd_mach_o_segment_command
*seg
= &cmd
->command
.segment
;
3113 unsigned wide
= mach_o_wide_p (&mdata
->header
);
3115 /* Init segment command. */
3116 cmd
->type
= wide
? BFD_MACH_O_LC_SEGMENT_64
: BFD_MACH_O_LC_SEGMENT
;
3117 cmd
->type_required
= FALSE
;
3119 strcpy (seg
->segname
, segname
);
3120 seg
->nsects
= nbr_sect
;
3130 seg
->sect_head
= NULL
;
3131 seg
->sect_tail
= NULL
;
3134 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
3135 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
3136 and copy functionality. */
3139 bfd_mach_o_build_commands (bfd
*abfd
)
3141 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
3142 unsigned wide
= mach_o_wide_p (&mdata
->header
);
3143 unsigned int nbr_segcmd
= 0;
3144 bfd_mach_o_load_command
*commands
;
3145 unsigned int nbr_commands
;
3146 int symtab_idx
= -1;
3147 int dysymtab_idx
= -1;
3151 /* Return now if already built. */
3152 if (mdata
->header
.ncmds
!= 0)
3155 /* Fill in the file type, if not already set. */
3156 if (mdata
->header
.filetype
== 0)
3158 if (abfd
->flags
& EXEC_P
)
3159 mdata
->header
.filetype
= BFD_MACH_O_MH_EXECUTE
;
3160 else if (abfd
->flags
& DYNAMIC
)
3161 mdata
->header
.filetype
= BFD_MACH_O_MH_DYLIB
;
3163 mdata
->header
.filetype
= BFD_MACH_O_MH_OBJECT
;
3166 /* If hasn't already been done, flatten sections list, and sort
3167 if/when required. Must be done before the symbol table is adjusted,
3168 since that depends on properly numbered sections. */
3169 if (mdata
->nsects
== 0 || mdata
->sections
== NULL
)
3170 if (! bfd_mach_o_mangle_sections (abfd
, mdata
))
3173 /* Order the symbol table, fill-in/check mach-o specific fields and
3174 partition out any indirect symbols. */
3175 if (!bfd_mach_o_mangle_symbols (abfd
))
3178 /* Segment commands. */
3179 if (mdata
->header
.filetype
== BFD_MACH_O_MH_OBJECT
)
3181 /* Only one segment for all the sections. But the segment is
3182 optional if there is no sections. */
3183 nbr_segcmd
= (mdata
->nsects
> 0) ? 1 : 0;
3187 bfd_mach_o_section
*prev_sect
= NULL
;
3189 /* One pagezero segment and one linkedit segment. */
3192 /* Create one segment for associated segment name in sections.
3193 Assume that sections with the same segment name are consecutive. */
3194 for (i
= 0; i
< mdata
->nsects
; i
++)
3196 bfd_mach_o_section
*this_sect
= mdata
->sections
[i
];
3198 if (prev_sect
== NULL
3199 || strcmp (prev_sect
->segname
, this_sect
->segname
) != 0)
3202 prev_sect
= this_sect
;
3207 nbr_commands
= nbr_segcmd
;
3209 /* One command for the symbol table (only if there are symbols. */
3210 if (bfd_get_symcount (abfd
) > 0)
3211 symtab_idx
= nbr_commands
++;
3214 This is a rather crude test for whether we should build a dysymtab. */
3215 if (bfd_mach_o_should_emit_dysymtab ()
3216 && bfd_get_symcount (abfd
))
3218 /* If there should be a case where a dysymtab could be emitted without
3219 a symtab (seems improbable), this would need amending. */
3220 dysymtab_idx
= nbr_commands
++;
3223 /* Add an entry point command. */
3224 if (mdata
->header
.filetype
== BFD_MACH_O_MH_EXECUTE
3225 && bfd_get_start_address (abfd
) != 0)
3226 main_idx
= nbr_commands
++;
3228 /* Well, we must have a header, at least. */
3229 mdata
->filelen
= wide
? BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
3231 /* A bit unusual, but no content is valid;
3232 as -n empty.s -o empty.o */
3233 if (nbr_commands
== 0)
3235 /* Layout commands (well none...) and set headers command fields. */
3236 return bfd_mach_o_layout_commands (mdata
);
3239 /* Create commands for segments (and symtabs), prepend them. */
3240 commands
= bfd_zalloc (abfd
, nbr_commands
* sizeof (bfd_mach_o_load_command
));
3241 if (commands
== NULL
)
3243 for (i
= 0; i
< nbr_commands
- 1; i
++)
3244 commands
[i
].next
= &commands
[i
+ 1];
3245 commands
[nbr_commands
- 1].next
= mdata
->first_command
;
3246 if (mdata
->first_command
== NULL
)
3247 mdata
->last_command
= &commands
[nbr_commands
- 1];
3248 mdata
->first_command
= &commands
[0];
3250 if (mdata
->header
.filetype
== BFD_MACH_O_MH_OBJECT
&& nbr_segcmd
!= 0)
3252 /* For object file, there is only one segment. */
3253 bfd_mach_o_init_segment (mdata
, &commands
[0], "", mdata
->nsects
);
3255 else if (nbr_segcmd
!= 0)
3257 bfd_mach_o_load_command
*cmd
;
3259 BFD_ASSERT (nbr_segcmd
>= 2);
3263 bfd_mach_o_init_segment (mdata
, cmd
, "__PAGEZERO", 0);
3265 /* Segments from sections. */
3267 for (i
= 0; i
< mdata
->nsects
;)
3269 const char *segname
= mdata
->sections
[i
]->segname
;
3270 unsigned int nbr_sect
= 1;
3272 /* Count number of sections for this segment. */
3273 for (i
++; i
< mdata
->nsects
; i
++)
3274 if (strcmp (mdata
->sections
[i
]->segname
, segname
) == 0)
3279 bfd_mach_o_init_segment (mdata
, cmd
, segname
, nbr_sect
);
3284 bfd_mach_o_init_segment (mdata
, cmd
, "__LINKEDIT", 0);
3287 if (symtab_idx
>= 0)
3289 /* Init symtab command. */
3290 bfd_mach_o_load_command
*cmd
= &commands
[symtab_idx
];
3292 cmd
->type
= BFD_MACH_O_LC_SYMTAB
;
3293 cmd
->type_required
= FALSE
;
3296 /* If required, setup symtab command, see comment above about the quality
3298 if (dysymtab_idx
>= 0)
3300 bfd_mach_o_load_command
*cmd
= &commands
[dysymtab_idx
];
3302 cmd
->type
= BFD_MACH_O_LC_DYSYMTAB
;
3303 cmd
->type_required
= FALSE
;
3306 /* Create the main command. */
3309 bfd_mach_o_load_command
*cmd
= &commands
[main_idx
];
3311 cmd
->type
= BFD_MACH_O_LC_MAIN
;
3312 cmd
->type_required
= TRUE
;
3314 cmd
->command
.main
.entryoff
= 0;
3315 cmd
->command
.main
.stacksize
= 0;
3318 /* Layout commands. */
3319 if (! bfd_mach_o_layout_commands (mdata
))
3322 /* So, now we have sized the commands and the filelen set to that.
3323 Now we can build the segment command and set the section file offsets. */
3324 if (mdata
->header
.filetype
== BFD_MACH_O_MH_OBJECT
)
3326 for (i
= 0; i
< nbr_segcmd
; i
++)
3327 if (!bfd_mach_o_build_obj_seg_command
3328 (abfd
, &commands
[i
].command
.segment
))
3335 /* Skip pagezero and linkedit segments. */
3336 for (i
= 1; i
< nbr_segcmd
- 1; i
++)
3338 bfd_mach_o_segment_command
*seg
= &commands
[i
].command
.segment
;
3340 if (!bfd_mach_o_build_exec_seg_command (abfd
, seg
))
3343 if (seg
->vmaddr
+ seg
->vmsize
> maxvma
)
3344 maxvma
= seg
->vmaddr
+ seg
->vmsize
;
3347 /* Set the size of __PAGEZERO. */
3348 commands
[0].command
.segment
.vmsize
=
3349 commands
[1].command
.segment
.vmaddr
;
3351 /* Set the vma and fileoff of __LINKEDIT. */
3352 commands
[nbr_segcmd
- 1].command
.segment
.vmaddr
= maxvma
;
3353 commands
[nbr_segcmd
- 1].command
.segment
.fileoff
= mdata
->filelen
;
3355 /* Set entry point (once segments have been laid out). */
3357 commands
[main_idx
].command
.main
.entryoff
=
3358 bfd_get_start_address (abfd
) - commands
[1].command
.segment
.vmaddr
;
3364 /* Set the contents of a section. */
3367 bfd_mach_o_set_section_contents (bfd
*abfd
,
3369 const void * location
,
3371 bfd_size_type count
)
3375 /* Trying to write the first section contents will trigger the creation of
3376 the load commands if they are not already present. */
3377 if (!abfd
->output_has_begun
&& !bfd_mach_o_build_commands (abfd
))
3383 pos
= section
->filepos
+ offset
;
3384 if (bfd_seek (abfd
, pos
, SEEK_SET
) != 0
3385 || bfd_bwrite (location
, count
, abfd
) != count
)
3392 bfd_mach_o_sizeof_headers (bfd
*a ATTRIBUTE_UNUSED
,
3393 struct bfd_link_info
*info ATTRIBUTE_UNUSED
)
3398 /* Make an empty symbol. This is required only because
3399 bfd_make_section_anyway wants to create a symbol for the section. */
3402 bfd_mach_o_make_empty_symbol (bfd
*abfd
)
3404 asymbol
*new_symbol
;
3406 new_symbol
= bfd_zalloc (abfd
, sizeof (bfd_mach_o_asymbol
));
3407 if (new_symbol
== NULL
)
3409 new_symbol
->the_bfd
= abfd
;
3410 new_symbol
->udata
.i
= SYM_MACHO_FIELDS_UNSET
;
3415 bfd_mach_o_read_header (bfd
*abfd
, file_ptr hdr_off
, bfd_mach_o_header
*header
)
3417 struct mach_o_header_external raw
;
3419 bfd_vma (*get32
) (const void *) = NULL
;
3421 /* Just read the magic number. */
3422 if (bfd_seek (abfd
, hdr_off
, SEEK_SET
) != 0
3423 || bfd_bread (raw
.magic
, sizeof (raw
.magic
), abfd
) != 4)
3426 if (bfd_getb32 (raw
.magic
) == BFD_MACH_O_MH_MAGIC
)
3428 header
->byteorder
= BFD_ENDIAN_BIG
;
3429 header
->magic
= BFD_MACH_O_MH_MAGIC
;
3430 header
->version
= 1;
3433 else if (bfd_getl32 (raw
.magic
) == BFD_MACH_O_MH_MAGIC
)
3435 header
->byteorder
= BFD_ENDIAN_LITTLE
;
3436 header
->magic
= BFD_MACH_O_MH_MAGIC
;
3437 header
->version
= 1;
3440 else if (bfd_getb32 (raw
.magic
) == BFD_MACH_O_MH_MAGIC_64
)
3442 header
->byteorder
= BFD_ENDIAN_BIG
;
3443 header
->magic
= BFD_MACH_O_MH_MAGIC_64
;
3444 header
->version
= 2;
3447 else if (bfd_getl32 (raw
.magic
) == BFD_MACH_O_MH_MAGIC_64
)
3449 header
->byteorder
= BFD_ENDIAN_LITTLE
;
3450 header
->magic
= BFD_MACH_O_MH_MAGIC_64
;
3451 header
->version
= 2;
3456 header
->byteorder
= BFD_ENDIAN_UNKNOWN
;
3460 /* Once the size of the header is known, read the full header. */
3461 size
= mach_o_wide_p (header
) ?
3462 BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
3464 if (bfd_seek (abfd
, hdr_off
, SEEK_SET
) != 0
3465 || bfd_bread (&raw
, size
, abfd
) != size
)
3468 header
->cputype
= (*get32
) (raw
.cputype
);
3469 header
->cpusubtype
= (*get32
) (raw
.cpusubtype
);
3470 header
->filetype
= (*get32
) (raw
.filetype
);
3471 header
->ncmds
= (*get32
) (raw
.ncmds
);
3472 header
->sizeofcmds
= (*get32
) (raw
.sizeofcmds
);
3473 header
->flags
= (*get32
) (raw
.flags
);
3475 if (mach_o_wide_p (header
))
3476 header
->reserved
= (*get32
) (raw
.reserved
);
3478 header
->reserved
= 0;
3484 bfd_mach_o_new_section_hook (bfd
*abfd
, asection
*sec
)
3486 bfd_mach_o_section
*s
;
3487 unsigned bfdalign
= bfd_get_section_alignment (abfd
, sec
);
3489 s
= bfd_mach_o_get_mach_o_section (sec
);
3493 static const mach_o_section_name_xlat
* xlat
;
3495 s
= (bfd_mach_o_section
*) bfd_zalloc (abfd
, sizeof (*s
));
3498 sec
->used_by_bfd
= s
;
3499 s
->bfdsection
= sec
;
3501 /* Create the Darwin seg/sect name pair from the bfd name.
3502 If this is a canonical name for which a specific paiting exists
3503 there will also be defined flags, type, attribute and alignment
3505 xlat
= bfd_mach_o_convert_section_name_to_mach_o (abfd
, sec
, s
);
3508 s
->flags
= xlat
->macho_sectype
| xlat
->macho_secattr
;
3509 s
->align
= xlat
->sectalign
> bfdalign
? xlat
->sectalign
3511 (void) bfd_set_section_alignment (abfd
, sec
, s
->align
);
3512 bfd_flags
= bfd_get_section_flags (abfd
, sec
);
3513 if (bfd_flags
== SEC_NO_FLAGS
)
3514 bfd_set_section_flags (abfd
, sec
, xlat
->bfd_flags
);
3517 /* Create default flags. */
3518 bfd_mach_o_set_section_flags_from_bfd (abfd
, sec
);
3521 return _bfd_generic_new_section_hook (abfd
, sec
);
3525 bfd_mach_o_init_section_from_mach_o (bfd
*abfd
, asection
*sec
,
3529 bfd_mach_o_section
*section
;
3531 flags
= bfd_get_section_flags (abfd
, sec
);
3532 section
= bfd_mach_o_get_mach_o_section (sec
);
3534 /* TODO: see if we should use the xlat system for doing this by
3535 preference and fall back to this for unknown sections. */
3537 if (flags
== SEC_NO_FLAGS
)
3539 /* Try to guess flags. */
3540 if (section
->flags
& BFD_MACH_O_S_ATTR_DEBUG
)
3541 flags
= SEC_DEBUGGING
;
3545 if ((section
->flags
& BFD_MACH_O_SECTION_TYPE_MASK
)
3546 != BFD_MACH_O_S_ZEROFILL
)
3549 if (prot
& BFD_MACH_O_PROT_EXECUTE
)
3551 if (prot
& BFD_MACH_O_PROT_WRITE
)
3553 else if (prot
& BFD_MACH_O_PROT_READ
)
3554 flags
|= SEC_READONLY
;
3560 if ((flags
& SEC_DEBUGGING
) == 0)
3564 if (section
->offset
!= 0)
3565 flags
|= SEC_HAS_CONTENTS
;
3566 if (section
->nreloc
!= 0)
3569 bfd_set_section_flags (abfd
, sec
, flags
);
3571 sec
->vma
= section
->addr
;
3572 sec
->lma
= section
->addr
;
3573 sec
->size
= section
->size
;
3574 sec
->filepos
= section
->offset
;
3575 sec
->alignment_power
= section
->align
;
3576 sec
->segment_mark
= 0;
3577 sec
->reloc_count
= section
->nreloc
;
3578 sec
->rel_filepos
= section
->reloff
;
3582 bfd_mach_o_make_bfd_section (bfd
*abfd
,
3583 const unsigned char *segname
,
3584 const unsigned char *sectname
)
3589 bfd_mach_o_convert_section_name_to_bfd
3590 (abfd
, (const char *)segname
, (const char *)sectname
, &sname
, &flags
);
3594 return bfd_make_section_anyway_with_flags (abfd
, sname
, flags
);
3598 bfd_mach_o_read_section_32 (bfd
*abfd
, unsigned long prot
)
3600 struct mach_o_section_32_external raw
;
3602 bfd_mach_o_section
*section
;
3604 if (bfd_bread (&raw
, BFD_MACH_O_SECTION_SIZE
, abfd
)
3605 != BFD_MACH_O_SECTION_SIZE
)
3608 sec
= bfd_mach_o_make_bfd_section (abfd
, raw
.segname
, raw
.sectname
);
3612 section
= bfd_mach_o_get_mach_o_section (sec
);
3613 memcpy (section
->segname
, raw
.segname
, sizeof (raw
.segname
));
3614 section
->segname
[BFD_MACH_O_SEGNAME_SIZE
] = 0;
3615 memcpy (section
->sectname
, raw
.sectname
, sizeof (raw
.sectname
));
3616 section
->sectname
[BFD_MACH_O_SECTNAME_SIZE
] = 0;
3617 section
->addr
= bfd_h_get_32 (abfd
, raw
.addr
);
3618 section
->size
= bfd_h_get_32 (abfd
, raw
.size
);
3619 section
->offset
= bfd_h_get_32 (abfd
, raw
.offset
);
3620 section
->align
= bfd_h_get_32 (abfd
, raw
.align
);
3621 /* PR 17512: file: 0017eb76. */
3622 if (section
->align
> 64)
3625 (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, "
3626 "using 32 instead"), section
->align
);
3627 section
->align
= 32;
3629 section
->reloff
= bfd_h_get_32 (abfd
, raw
.reloff
);
3630 section
->nreloc
= bfd_h_get_32 (abfd
, raw
.nreloc
);
3631 section
->flags
= bfd_h_get_32 (abfd
, raw
.flags
);
3632 section
->reserved1
= bfd_h_get_32 (abfd
, raw
.reserved1
);
3633 section
->reserved2
= bfd_h_get_32 (abfd
, raw
.reserved2
);
3634 section
->reserved3
= 0;
3636 bfd_mach_o_init_section_from_mach_o (abfd
, sec
, prot
);
3642 bfd_mach_o_read_section_64 (bfd
*abfd
, unsigned long prot
)
3644 struct mach_o_section_64_external raw
;
3646 bfd_mach_o_section
*section
;
3648 if (bfd_bread (&raw
, BFD_MACH_O_SECTION_64_SIZE
, abfd
)
3649 != BFD_MACH_O_SECTION_64_SIZE
)
3652 sec
= bfd_mach_o_make_bfd_section (abfd
, raw
.segname
, raw
.sectname
);
3656 section
= bfd_mach_o_get_mach_o_section (sec
);
3657 memcpy (section
->segname
, raw
.segname
, sizeof (raw
.segname
));
3658 section
->segname
[BFD_MACH_O_SEGNAME_SIZE
] = 0;
3659 memcpy (section
->sectname
, raw
.sectname
, sizeof (raw
.sectname
));
3660 section
->sectname
[BFD_MACH_O_SECTNAME_SIZE
] = 0;
3661 section
->addr
= bfd_h_get_64 (abfd
, raw
.addr
);
3662 section
->size
= bfd_h_get_64 (abfd
, raw
.size
);
3663 section
->offset
= bfd_h_get_32 (abfd
, raw
.offset
);
3664 section
->align
= bfd_h_get_32 (abfd
, raw
.align
);
3665 if (section
->align
> 64)
3668 (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, "
3669 "using 32 instead"), section
->align
);
3670 section
->align
= 32;
3672 section
->reloff
= bfd_h_get_32 (abfd
, raw
.reloff
);
3673 section
->nreloc
= bfd_h_get_32 (abfd
, raw
.nreloc
);
3674 section
->flags
= bfd_h_get_32 (abfd
, raw
.flags
);
3675 section
->reserved1
= bfd_h_get_32 (abfd
, raw
.reserved1
);
3676 section
->reserved2
= bfd_h_get_32 (abfd
, raw
.reserved2
);
3677 section
->reserved3
= bfd_h_get_32 (abfd
, raw
.reserved3
);
3679 bfd_mach_o_init_section_from_mach_o (abfd
, sec
, prot
);
3685 bfd_mach_o_read_section (bfd
*abfd
, unsigned long prot
, unsigned int wide
)
3688 return bfd_mach_o_read_section_64 (abfd
, prot
);
3690 return bfd_mach_o_read_section_32 (abfd
, prot
);
3694 bfd_mach_o_read_symtab_symbol (bfd
*abfd
,
3695 bfd_mach_o_symtab_command
*sym
,
3696 bfd_mach_o_asymbol
*s
,
3699 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
3700 unsigned int wide
= mach_o_wide_p (&mdata
->header
);
3701 unsigned int symwidth
=
3702 wide
? BFD_MACH_O_NLIST_64_SIZE
: BFD_MACH_O_NLIST_SIZE
;
3703 unsigned int symoff
= sym
->symoff
+ (i
* symwidth
);
3704 struct mach_o_nlist_64_external raw
;
3705 unsigned char type
= -1;
3706 unsigned char section
= -1;
3708 symvalue value
= -1;
3709 unsigned long stroff
= -1;
3710 unsigned int symtype
= -1;
3712 BFD_ASSERT (sym
->strtab
!= NULL
);
3714 if (bfd_seek (abfd
, symoff
, SEEK_SET
) != 0
3715 || bfd_bread (&raw
, symwidth
, abfd
) != symwidth
)
3718 /* xgettext:c-format */
3719 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"),
3724 stroff
= bfd_h_get_32 (abfd
, raw
.n_strx
);
3725 type
= bfd_h_get_8 (abfd
, raw
.n_type
);
3726 symtype
= type
& BFD_MACH_O_N_TYPE
;
3727 section
= bfd_h_get_8 (abfd
, raw
.n_sect
);
3728 desc
= bfd_h_get_16 (abfd
, raw
.n_desc
);
3730 value
= bfd_h_get_64 (abfd
, raw
.n_value
);
3732 value
= bfd_h_get_32 (abfd
, raw
.n_value
);
3734 if (stroff
>= sym
->strsize
)
3737 /* xgettext:c-format */
3738 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"),
3744 s
->symbol
.the_bfd
= abfd
;
3745 s
->symbol
.name
= sym
->strtab
+ stroff
;
3746 s
->symbol
.value
= value
;
3747 s
->symbol
.flags
= 0x0;
3748 s
->symbol
.udata
.i
= i
;
3750 s
->n_sect
= section
;
3753 if (type
& BFD_MACH_O_N_STAB
)
3755 s
->symbol
.flags
|= BSF_DEBUGGING
;
3756 s
->symbol
.section
= bfd_und_section_ptr
;
3768 if ((section
> 0) && (section
<= mdata
->nsects
))
3770 s
->symbol
.section
= mdata
->sections
[section
- 1]->bfdsection
;
3772 s
->symbol
.value
- mdata
->sections
[section
- 1]->addr
;
3779 if (type
& (BFD_MACH_O_N_PEXT
| BFD_MACH_O_N_EXT
))
3780 s
->symbol
.flags
|= BSF_GLOBAL
;
3782 s
->symbol
.flags
|= BSF_LOCAL
;
3786 case BFD_MACH_O_N_UNDF
:
3787 if (type
== (BFD_MACH_O_N_UNDF
| BFD_MACH_O_N_EXT
)
3788 && s
->symbol
.value
!= 0)
3790 /* A common symbol. */
3791 s
->symbol
.section
= bfd_com_section_ptr
;
3792 s
->symbol
.flags
= BSF_NO_FLAGS
;
3796 s
->symbol
.section
= bfd_und_section_ptr
;
3797 if (s
->n_desc
& BFD_MACH_O_N_WEAK_REF
)
3798 s
->symbol
.flags
|= BSF_WEAK
;
3801 case BFD_MACH_O_N_PBUD
:
3802 s
->symbol
.section
= bfd_und_section_ptr
;
3804 case BFD_MACH_O_N_ABS
:
3805 s
->symbol
.section
= bfd_abs_section_ptr
;
3807 case BFD_MACH_O_N_SECT
:
3808 if ((section
> 0) && (section
<= mdata
->nsects
))
3810 s
->symbol
.section
= mdata
->sections
[section
- 1]->bfdsection
;
3812 s
->symbol
.value
- mdata
->sections
[section
- 1]->addr
;
3816 /* Mach-O uses 0 to mean "no section"; not an error. */
3820 /* xgettext:c-format */
3821 (_("bfd_mach_o_read_symtab_symbol: "
3822 "symbol \"%s\" specified invalid section %d (max %lu): "
3823 "setting to undefined"),
3824 s
->symbol
.name
, section
, mdata
->nsects
);
3826 s
->symbol
.section
= bfd_und_section_ptr
;
3829 case BFD_MACH_O_N_INDR
:
3830 /* FIXME: we don't follow the BFD convention as this indirect symbol
3831 won't be followed by the referenced one. This looks harmless
3832 unless we start using the linker. */
3833 s
->symbol
.flags
|= BSF_INDIRECT
;
3834 s
->symbol
.section
= bfd_ind_section_ptr
;
3835 s
->symbol
.value
= 0;
3839 /* xgettext:c-format */
3840 (_("bfd_mach_o_read_symtab_symbol: "
3841 "symbol \"%s\" specified invalid type field 0x%x: "
3842 "setting to undefined"), s
->symbol
.name
, symtype
);
3843 s
->symbol
.section
= bfd_und_section_ptr
;
3852 bfd_mach_o_read_symtab_strtab (bfd
*abfd
)
3854 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
3855 bfd_mach_o_symtab_command
*sym
= mdata
->symtab
;
3857 /* Fail if there is no symtab. */
3861 /* Success if already loaded. */
3865 if (abfd
->flags
& BFD_IN_MEMORY
)
3867 struct bfd_in_memory
*b
;
3869 b
= (struct bfd_in_memory
*) abfd
->iostream
;
3871 if ((sym
->stroff
+ sym
->strsize
) > b
->size
)
3873 bfd_set_error (bfd_error_file_truncated
);
3876 sym
->strtab
= (char *) b
->buffer
+ sym
->stroff
;
3880 /* See PR 21840 for a reproducer. */
3881 if ((sym
->strsize
+ 1) == 0)
3883 sym
->strtab
= bfd_alloc (abfd
, sym
->strsize
+ 1);
3884 if (sym
->strtab
== NULL
)
3887 if (bfd_seek (abfd
, sym
->stroff
, SEEK_SET
) != 0
3888 || bfd_bread (sym
->strtab
, sym
->strsize
, abfd
) != sym
->strsize
)
3890 /* PR 17512: file: 10888-1609-0.004. */
3891 bfd_release (abfd
, sym
->strtab
);
3893 bfd_set_error (bfd_error_file_truncated
);
3896 /* Zero terminate the string table. */
3897 sym
->strtab
[sym
->strsize
] = 0;
3904 bfd_mach_o_read_symtab_symbols (bfd
*abfd
)
3906 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
3907 bfd_mach_o_symtab_command
*sym
= mdata
->symtab
;
3910 if (sym
== NULL
|| sym
->symbols
)
3911 /* Return now if there are no symbols or if already loaded. */
3914 sym
->symbols
= bfd_alloc2 (abfd
, sym
->nsyms
, sizeof (bfd_mach_o_asymbol
));
3915 if (sym
->symbols
== NULL
)
3917 _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: "
3918 "unable to allocate memory for symbols"));
3923 if (!bfd_mach_o_read_symtab_strtab (abfd
))
3926 for (i
= 0; i
< sym
->nsyms
; i
++)
3927 if (!bfd_mach_o_read_symtab_symbol (abfd
, sym
, &sym
->symbols
[i
], i
))
3933 bfd_release (abfd
, sym
->symbols
);
3934 sym
->symbols
= NULL
;
3940 bfd_mach_o_i386_flavour_string (unsigned int flavour
)
3942 switch ((int) flavour
)
3944 case BFD_MACH_O_x86_THREAD_STATE32
: return "x86_THREAD_STATE32";
3945 case BFD_MACH_O_x86_FLOAT_STATE32
: return "x86_FLOAT_STATE32";
3946 case BFD_MACH_O_x86_EXCEPTION_STATE32
: return "x86_EXCEPTION_STATE32";
3947 case BFD_MACH_O_x86_THREAD_STATE64
: return "x86_THREAD_STATE64";
3948 case BFD_MACH_O_x86_FLOAT_STATE64
: return "x86_FLOAT_STATE64";
3949 case BFD_MACH_O_x86_EXCEPTION_STATE64
: return "x86_EXCEPTION_STATE64";
3950 case BFD_MACH_O_x86_THREAD_STATE
: return "x86_THREAD_STATE";
3951 case BFD_MACH_O_x86_FLOAT_STATE
: return "x86_FLOAT_STATE";
3952 case BFD_MACH_O_x86_EXCEPTION_STATE
: return "x86_EXCEPTION_STATE";
3953 case BFD_MACH_O_x86_DEBUG_STATE32
: return "x86_DEBUG_STATE32";
3954 case BFD_MACH_O_x86_DEBUG_STATE64
: return "x86_DEBUG_STATE64";
3955 case BFD_MACH_O_x86_DEBUG_STATE
: return "x86_DEBUG_STATE";
3956 case BFD_MACH_O_x86_THREAD_STATE_NONE
: return "x86_THREAD_STATE_NONE";
3957 default: return "UNKNOWN";
3962 bfd_mach_o_ppc_flavour_string (unsigned int flavour
)
3964 switch ((int) flavour
)
3966 case BFD_MACH_O_PPC_THREAD_STATE
: return "PPC_THREAD_STATE";
3967 case BFD_MACH_O_PPC_FLOAT_STATE
: return "PPC_FLOAT_STATE";
3968 case BFD_MACH_O_PPC_EXCEPTION_STATE
: return "PPC_EXCEPTION_STATE";
3969 case BFD_MACH_O_PPC_VECTOR_STATE
: return "PPC_VECTOR_STATE";
3970 case BFD_MACH_O_PPC_THREAD_STATE64
: return "PPC_THREAD_STATE64";
3971 case BFD_MACH_O_PPC_EXCEPTION_STATE64
: return "PPC_EXCEPTION_STATE64";
3972 default: return "UNKNOWN";
3977 bfd_mach_o_read_dylinker (bfd
*abfd
, bfd_mach_o_load_command
*command
)
3979 bfd_mach_o_dylinker_command
*cmd
= &command
->command
.dylinker
;
3980 struct mach_o_str_command_external raw
;
3981 unsigned int nameoff
;
3982 unsigned int namelen
;
3984 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
3987 nameoff
= bfd_h_get_32 (abfd
, raw
.str
);
3989 cmd
->name_offset
= nameoff
;
3990 namelen
= command
->len
- nameoff
;
3991 nameoff
+= command
->offset
;
3992 cmd
->name_str
= bfd_alloc (abfd
, namelen
);
3993 if (cmd
->name_str
== NULL
)
3995 if (bfd_seek (abfd
, nameoff
, SEEK_SET
) != 0
3996 || bfd_bread (cmd
->name_str
, namelen
, abfd
) != namelen
)
4002 bfd_mach_o_read_dylib (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4004 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4005 bfd_mach_o_dylib_command
*cmd
= &command
->command
.dylib
;
4006 struct mach_o_dylib_command_external raw
;
4007 unsigned int nameoff
;
4008 unsigned int namelen
;
4010 switch (command
->type
)
4012 case BFD_MACH_O_LC_LOAD_DYLIB
:
4013 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB
:
4014 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB
:
4015 case BFD_MACH_O_LC_ID_DYLIB
:
4016 case BFD_MACH_O_LC_REEXPORT_DYLIB
:
4017 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB
:
4024 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4027 nameoff
= bfd_h_get_32 (abfd
, raw
.name
);
4028 cmd
->timestamp
= bfd_h_get_32 (abfd
, raw
.timestamp
);
4029 cmd
->current_version
= bfd_h_get_32 (abfd
, raw
.current_version
);
4030 cmd
->compatibility_version
= bfd_h_get_32 (abfd
, raw
.compatibility_version
);
4032 cmd
->name_offset
= command
->offset
+ nameoff
;
4033 namelen
= command
->len
- nameoff
;
4034 cmd
->name_str
= bfd_alloc (abfd
, namelen
);
4035 if (cmd
->name_str
== NULL
)
4037 if (bfd_seek (abfd
, mdata
->hdr_offset
+ cmd
->name_offset
, SEEK_SET
) != 0
4038 || bfd_bread (cmd
->name_str
, namelen
, abfd
) != namelen
)
4044 bfd_mach_o_read_prebound_dylib (bfd
*abfd
,
4045 bfd_mach_o_load_command
*command
)
4047 bfd_mach_o_prebound_dylib_command
*cmd
= &command
->command
.prebound_dylib
;
4048 struct mach_o_prebound_dylib_command_external raw
;
4049 unsigned int nameoff
;
4050 unsigned int modoff
;
4051 unsigned int str_len
;
4054 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4057 nameoff
= bfd_h_get_32 (abfd
, raw
.name
);
4058 modoff
= bfd_h_get_32 (abfd
, raw
.linked_modules
);
4059 if (nameoff
> command
->len
|| modoff
> command
->len
)
4062 str_len
= command
->len
- sizeof (raw
);
4063 str
= bfd_alloc (abfd
, str_len
);
4066 if (bfd_bread (str
, str_len
, abfd
) != str_len
)
4069 cmd
->name_offset
= command
->offset
+ nameoff
;
4070 cmd
->nmodules
= bfd_h_get_32 (abfd
, raw
.nmodules
);
4071 cmd
->linked_modules_offset
= command
->offset
+ modoff
;
4073 cmd
->name_str
= (char *)str
+ nameoff
- (sizeof (raw
) + BFD_MACH_O_LC_SIZE
);
4074 cmd
->linked_modules
= str
+ modoff
- (sizeof (raw
) + BFD_MACH_O_LC_SIZE
);
4079 bfd_mach_o_read_prebind_cksum (bfd
*abfd
,
4080 bfd_mach_o_load_command
*command
)
4082 bfd_mach_o_prebind_cksum_command
*cmd
= &command
->command
.prebind_cksum
;
4083 struct mach_o_prebind_cksum_command_external raw
;
4085 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4088 cmd
->cksum
= bfd_get_32 (abfd
, raw
.cksum
);
4093 bfd_mach_o_read_twolevel_hints (bfd
*abfd
,
4094 bfd_mach_o_load_command
*command
)
4096 bfd_mach_o_twolevel_hints_command
*cmd
= &command
->command
.twolevel_hints
;
4097 struct mach_o_twolevel_hints_command_external raw
;
4099 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4102 cmd
->offset
= bfd_get_32 (abfd
, raw
.offset
);
4103 cmd
->nhints
= bfd_get_32 (abfd
, raw
.nhints
);
4108 bfd_mach_o_read_fvmlib (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4110 bfd_mach_o_fvmlib_command
*fvm
= &command
->command
.fvmlib
;
4111 struct mach_o_fvmlib_command_external raw
;
4112 unsigned int nameoff
;
4113 unsigned int namelen
;
4115 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4118 nameoff
= bfd_h_get_32 (abfd
, raw
.name
);
4119 fvm
->minor_version
= bfd_h_get_32 (abfd
, raw
.minor_version
);
4120 fvm
->header_addr
= bfd_h_get_32 (abfd
, raw
.header_addr
);
4122 fvm
->name_offset
= command
->offset
+ nameoff
;
4123 namelen
= command
->len
- nameoff
;
4124 fvm
->name_str
= bfd_alloc (abfd
, namelen
);
4125 if (fvm
->name_str
== NULL
)
4127 if (bfd_seek (abfd
, fvm
->name_offset
, SEEK_SET
) != 0
4128 || bfd_bread (fvm
->name_str
, namelen
, abfd
) != namelen
)
4134 bfd_mach_o_read_thread (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4136 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4137 bfd_mach_o_thread_command
*cmd
= &command
->command
.thread
;
4138 unsigned int offset
;
4139 unsigned int nflavours
;
4142 BFD_ASSERT ((command
->type
== BFD_MACH_O_LC_THREAD
)
4143 || (command
->type
== BFD_MACH_O_LC_UNIXTHREAD
));
4145 /* Count the number of threads. */
4148 while (offset
!= command
->len
)
4150 struct mach_o_thread_command_external raw
;
4152 if (offset
>= command
->len
)
4155 if (bfd_seek (abfd
, command
->offset
+ offset
, SEEK_SET
) != 0
4156 || bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4159 offset
+= sizeof (raw
) + bfd_h_get_32 (abfd
, raw
.count
) * 4;
4163 /* Allocate threads. */
4164 cmd
->flavours
= bfd_alloc2
4165 (abfd
, nflavours
, sizeof (bfd_mach_o_thread_flavour
));
4166 if (cmd
->flavours
== NULL
)
4168 cmd
->nflavours
= nflavours
;
4172 while (offset
!= command
->len
)
4174 struct mach_o_thread_command_external raw
;
4176 if (offset
>= command
->len
)
4179 if (nflavours
>= cmd
->nflavours
)
4182 if (bfd_seek (abfd
, command
->offset
+ offset
, SEEK_SET
) != 0
4183 || bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4186 cmd
->flavours
[nflavours
].flavour
= bfd_h_get_32 (abfd
, raw
.flavour
);
4187 cmd
->flavours
[nflavours
].offset
= command
->offset
+ offset
+ sizeof (raw
);
4188 cmd
->flavours
[nflavours
].size
= bfd_h_get_32 (abfd
, raw
.count
) * 4;
4189 offset
+= cmd
->flavours
[nflavours
].size
+ sizeof (raw
);
4193 for (i
= 0; i
< nflavours
; i
++)
4196 unsigned int snamelen
;
4198 const char *flavourstr
;
4199 const char *prefix
= "LC_THREAD";
4202 switch (mdata
->header
.cputype
)
4204 case BFD_MACH_O_CPU_TYPE_POWERPC
:
4205 case BFD_MACH_O_CPU_TYPE_POWERPC_64
:
4207 bfd_mach_o_ppc_flavour_string (cmd
->flavours
[i
].flavour
);
4209 case BFD_MACH_O_CPU_TYPE_I386
:
4210 case BFD_MACH_O_CPU_TYPE_X86_64
:
4212 bfd_mach_o_i386_flavour_string (cmd
->flavours
[i
].flavour
);
4215 flavourstr
= "UNKNOWN_ARCHITECTURE";
4219 snamelen
= strlen (prefix
) + 1 + 20 + 1 + strlen (flavourstr
) + 1;
4220 sname
= bfd_alloc (abfd
, snamelen
);
4226 sprintf (sname
, "%s.%s.%u", prefix
, flavourstr
, j
);
4227 if (bfd_get_section_by_name (abfd
, sname
) == NULL
)
4232 bfdsec
= bfd_make_section_with_flags (abfd
, sname
, SEC_HAS_CONTENTS
);
4236 bfdsec
->size
= cmd
->flavours
[i
].size
;
4237 bfdsec
->filepos
= cmd
->flavours
[i
].offset
;
4238 bfdsec
->alignment_power
= 0x0;
4240 cmd
->section
= bfdsec
;
4247 bfd_mach_o_read_dysymtab (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4249 bfd_mach_o_dysymtab_command
*cmd
= &command
->command
.dysymtab
;
4250 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4252 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_DYSYMTAB
);
4255 struct mach_o_dysymtab_command_external raw
;
4257 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4260 cmd
->ilocalsym
= bfd_h_get_32 (abfd
, raw
.ilocalsym
);
4261 cmd
->nlocalsym
= bfd_h_get_32 (abfd
, raw
.nlocalsym
);
4262 cmd
->iextdefsym
= bfd_h_get_32 (abfd
, raw
.iextdefsym
);
4263 cmd
->nextdefsym
= bfd_h_get_32 (abfd
, raw
.nextdefsym
);
4264 cmd
->iundefsym
= bfd_h_get_32 (abfd
, raw
.iundefsym
);
4265 cmd
->nundefsym
= bfd_h_get_32 (abfd
, raw
.nundefsym
);
4266 cmd
->tocoff
= bfd_h_get_32 (abfd
, raw
.tocoff
);
4267 cmd
->ntoc
= bfd_h_get_32 (abfd
, raw
.ntoc
);
4268 cmd
->modtaboff
= bfd_h_get_32 (abfd
, raw
.modtaboff
);
4269 cmd
->nmodtab
= bfd_h_get_32 (abfd
, raw
.nmodtab
);
4270 cmd
->extrefsymoff
= bfd_h_get_32 (abfd
, raw
.extrefsymoff
);
4271 cmd
->nextrefsyms
= bfd_h_get_32 (abfd
, raw
.nextrefsyms
);
4272 cmd
->indirectsymoff
= bfd_h_get_32 (abfd
, raw
.indirectsymoff
);
4273 cmd
->nindirectsyms
= bfd_h_get_32 (abfd
, raw
.nindirectsyms
);
4274 cmd
->extreloff
= bfd_h_get_32 (abfd
, raw
.extreloff
);
4275 cmd
->nextrel
= bfd_h_get_32 (abfd
, raw
.nextrel
);
4276 cmd
->locreloff
= bfd_h_get_32 (abfd
, raw
.locreloff
);
4277 cmd
->nlocrel
= bfd_h_get_32 (abfd
, raw
.nlocrel
);
4280 if (cmd
->nmodtab
!= 0)
4283 int wide
= bfd_mach_o_wide_p (abfd
);
4284 unsigned int module_len
= wide
? 56 : 52;
4287 bfd_alloc2 (abfd
, cmd
->nmodtab
, sizeof (bfd_mach_o_dylib_module
));
4288 if (cmd
->dylib_module
== NULL
)
4291 if (bfd_seek (abfd
, cmd
->modtaboff
, SEEK_SET
) != 0)
4294 for (i
= 0; i
< cmd
->nmodtab
; i
++)
4296 bfd_mach_o_dylib_module
*module
= &cmd
->dylib_module
[i
];
4298 unsigned char buf
[56];
4300 if (bfd_bread ((void *) buf
, module_len
, abfd
) != module_len
)
4303 module
->module_name_idx
= bfd_h_get_32 (abfd
, buf
+ 0);
4304 module
->iextdefsym
= bfd_h_get_32 (abfd
, buf
+ 4);
4305 module
->nextdefsym
= bfd_h_get_32 (abfd
, buf
+ 8);
4306 module
->irefsym
= bfd_h_get_32 (abfd
, buf
+ 12);
4307 module
->nrefsym
= bfd_h_get_32 (abfd
, buf
+ 16);
4308 module
->ilocalsym
= bfd_h_get_32 (abfd
, buf
+ 20);
4309 module
->nlocalsym
= bfd_h_get_32 (abfd
, buf
+ 24);
4310 module
->iextrel
= bfd_h_get_32 (abfd
, buf
+ 28);
4311 module
->nextrel
= bfd_h_get_32 (abfd
, buf
+ 32);
4312 v
= bfd_h_get_32 (abfd
, buf
+36);
4313 module
->iinit
= v
& 0xffff;
4314 module
->iterm
= (v
>> 16) & 0xffff;
4315 v
= bfd_h_get_32 (abfd
, buf
+ 40);
4316 module
->ninit
= v
& 0xffff;
4317 module
->nterm
= (v
>> 16) & 0xffff;
4320 module
->objc_module_info_size
= bfd_h_get_32 (abfd
, buf
+ 44);
4321 module
->objc_module_info_addr
= bfd_h_get_64 (abfd
, buf
+ 48);
4325 module
->objc_module_info_addr
= bfd_h_get_32 (abfd
, buf
+ 44);
4326 module
->objc_module_info_size
= bfd_h_get_32 (abfd
, buf
+ 48);
4335 cmd
->dylib_toc
= bfd_alloc2
4336 (abfd
, cmd
->ntoc
, sizeof (bfd_mach_o_dylib_table_of_content
));
4337 if (cmd
->dylib_toc
== NULL
)
4340 if (bfd_seek (abfd
, cmd
->tocoff
, SEEK_SET
) != 0)
4343 for (i
= 0; i
< cmd
->ntoc
; i
++)
4345 struct mach_o_dylib_table_of_contents_external raw
;
4346 bfd_mach_o_dylib_table_of_content
*toc
= &cmd
->dylib_toc
[i
];
4348 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4351 toc
->symbol_index
= bfd_h_get_32 (abfd
, raw
.symbol_index
);
4352 toc
->module_index
= bfd_h_get_32 (abfd
, raw
.module_index
);
4356 if (cmd
->nindirectsyms
!= 0)
4360 cmd
->indirect_syms
= bfd_alloc2
4361 (abfd
, cmd
->nindirectsyms
, sizeof (unsigned int));
4362 if (cmd
->indirect_syms
== NULL
)
4365 if (bfd_seek (abfd
, cmd
->indirectsymoff
, SEEK_SET
) != 0)
4368 for (i
= 0; i
< cmd
->nindirectsyms
; i
++)
4370 unsigned char raw
[4];
4371 unsigned int *is
= &cmd
->indirect_syms
[i
];
4373 if (bfd_bread (raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4376 *is
= bfd_h_get_32 (abfd
, raw
);
4380 if (cmd
->nextrefsyms
!= 0)
4385 cmd
->ext_refs
= bfd_alloc2
4386 (abfd
, cmd
->nextrefsyms
, sizeof (bfd_mach_o_dylib_reference
));
4387 if (cmd
->ext_refs
== NULL
)
4390 if (bfd_seek (abfd
, cmd
->extrefsymoff
, SEEK_SET
) != 0)
4393 for (i
= 0; i
< cmd
->nextrefsyms
; i
++)
4395 unsigned char raw
[4];
4396 bfd_mach_o_dylib_reference
*ref
= &cmd
->ext_refs
[i
];
4398 if (bfd_bread (raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4401 /* Fields isym and flags are written as bit-fields, thus we need
4402 a specific processing for endianness. */
4403 v
= bfd_h_get_32 (abfd
, raw
);
4404 if (bfd_big_endian (abfd
))
4406 ref
->isym
= (v
>> 8) & 0xffffff;
4407 ref
->flags
= v
& 0xff;
4411 ref
->isym
= v
& 0xffffff;
4412 ref
->flags
= (v
>> 24) & 0xff;
4417 if (mdata
->dysymtab
)
4419 mdata
->dysymtab
= cmd
;
4425 bfd_mach_o_read_symtab (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4427 bfd_mach_o_symtab_command
*symtab
= &command
->command
.symtab
;
4428 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4429 struct mach_o_symtab_command_external raw
;
4431 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SYMTAB
);
4433 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4436 symtab
->symoff
= bfd_h_get_32 (abfd
, raw
.symoff
);
4437 symtab
->nsyms
= bfd_h_get_32 (abfd
, raw
.nsyms
);
4438 symtab
->stroff
= bfd_h_get_32 (abfd
, raw
.stroff
);
4439 symtab
->strsize
= bfd_h_get_32 (abfd
, raw
.strsize
);
4440 symtab
->symbols
= NULL
;
4441 symtab
->strtab
= NULL
;
4443 if (symtab
->nsyms
!= 0)
4444 abfd
->flags
|= HAS_SYMS
;
4448 mdata
->symtab
= symtab
;
4453 bfd_mach_o_read_uuid (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4455 bfd_mach_o_uuid_command
*cmd
= &command
->command
.uuid
;
4457 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_UUID
);
4459 if (bfd_bread (cmd
->uuid
, 16, abfd
) != 16)
4466 bfd_mach_o_read_linkedit (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4468 bfd_mach_o_linkedit_command
*cmd
= &command
->command
.linkedit
;
4469 struct mach_o_linkedit_data_command_external raw
;
4471 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4474 cmd
->dataoff
= bfd_get_32 (abfd
, raw
.dataoff
);
4475 cmd
->datasize
= bfd_get_32 (abfd
, raw
.datasize
);
4480 bfd_mach_o_read_str (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4482 bfd_mach_o_str_command
*cmd
= &command
->command
.str
;
4483 struct mach_o_str_command_external raw
;
4486 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4489 off
= bfd_get_32 (abfd
, raw
.str
);
4490 cmd
->stroff
= command
->offset
+ off
;
4491 cmd
->str_len
= command
->len
- off
;
4492 cmd
->str
= bfd_alloc (abfd
, cmd
->str_len
);
4493 if (cmd
->str
== NULL
)
4495 if (bfd_seek (abfd
, cmd
->stroff
, SEEK_SET
) != 0
4496 || bfd_bread ((void *) cmd
->str
, cmd
->str_len
, abfd
) != cmd
->str_len
)
4501 static unsigned char *
4502 bfd_mach_o_alloc_and_read (bfd
*abfd
, unsigned int off
, unsigned int size
)
4506 buf
= bfd_alloc (abfd
, size
);
4509 if (bfd_seek (abfd
, off
, SEEK_SET
) != 0
4510 || bfd_bread (buf
, size
, abfd
) != size
)
4516 bfd_mach_o_read_dyld_content (bfd
*abfd
, bfd_mach_o_dyld_info_command
*cmd
)
4518 /* Read rebase content. */
4519 if (cmd
->rebase_content
== NULL
&& cmd
->rebase_size
!= 0)
4521 cmd
->rebase_content
=
4522 bfd_mach_o_alloc_and_read (abfd
, cmd
->rebase_off
, cmd
->rebase_size
);
4523 if (cmd
->rebase_content
== NULL
)
4527 /* Read bind content. */
4528 if (cmd
->bind_content
== NULL
&& cmd
->bind_size
!= 0)
4531 bfd_mach_o_alloc_and_read (abfd
, cmd
->bind_off
, cmd
->bind_size
);
4532 if (cmd
->bind_content
== NULL
)
4536 /* Read weak bind content. */
4537 if (cmd
->weak_bind_content
== NULL
&& cmd
->weak_bind_size
!= 0)
4539 cmd
->weak_bind_content
= bfd_mach_o_alloc_and_read
4540 (abfd
, cmd
->weak_bind_off
, cmd
->weak_bind_size
);
4541 if (cmd
->weak_bind_content
== NULL
)
4545 /* Read lazy bind content. */
4546 if (cmd
->lazy_bind_content
== NULL
&& cmd
->lazy_bind_size
!= 0)
4548 cmd
->lazy_bind_content
= bfd_mach_o_alloc_and_read
4549 (abfd
, cmd
->lazy_bind_off
, cmd
->lazy_bind_size
);
4550 if (cmd
->lazy_bind_content
== NULL
)
4554 /* Read export content. */
4555 if (cmd
->export_content
== NULL
&& cmd
->export_size
!= 0)
4557 cmd
->export_content
= bfd_mach_o_alloc_and_read
4558 (abfd
, cmd
->export_off
, cmd
->export_size
);
4559 if (cmd
->export_content
== NULL
)
4567 bfd_mach_o_read_dyld_info (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4569 bfd_mach_o_dyld_info_command
*cmd
= &command
->command
.dyld_info
;
4570 struct mach_o_dyld_info_command_external raw
;
4572 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4575 cmd
->rebase_off
= bfd_get_32 (abfd
, raw
.rebase_off
);
4576 cmd
->rebase_size
= bfd_get_32 (abfd
, raw
.rebase_size
);
4577 cmd
->rebase_content
= NULL
;
4578 cmd
->bind_off
= bfd_get_32 (abfd
, raw
.bind_off
);
4579 cmd
->bind_size
= bfd_get_32 (abfd
, raw
.bind_size
);
4580 cmd
->bind_content
= NULL
;
4581 cmd
->weak_bind_off
= bfd_get_32 (abfd
, raw
.weak_bind_off
);
4582 cmd
->weak_bind_size
= bfd_get_32 (abfd
, raw
.weak_bind_size
);
4583 cmd
->weak_bind_content
= NULL
;
4584 cmd
->lazy_bind_off
= bfd_get_32 (abfd
, raw
.lazy_bind_off
);
4585 cmd
->lazy_bind_size
= bfd_get_32 (abfd
, raw
.lazy_bind_size
);
4586 cmd
->lazy_bind_content
= NULL
;
4587 cmd
->export_off
= bfd_get_32 (abfd
, raw
.export_off
);
4588 cmd
->export_size
= bfd_get_32 (abfd
, raw
.export_size
);
4589 cmd
->export_content
= NULL
;
4594 bfd_mach_o_read_version_min (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4596 bfd_mach_o_version_min_command
*cmd
= &command
->command
.version_min
;
4597 struct mach_o_version_min_command_external raw
;
4600 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4603 ver
= bfd_get_32 (abfd
, raw
.version
);
4604 cmd
->rel
= ver
>> 16;
4605 cmd
->maj
= ver
>> 8;
4607 cmd
->reserved
= bfd_get_32 (abfd
, raw
.reserved
);
4612 bfd_mach_o_read_encryption_info (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4614 bfd_mach_o_encryption_info_command
*cmd
= &command
->command
.encryption_info
;
4615 struct mach_o_encryption_info_command_external raw
;
4617 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4620 cmd
->cryptoff
= bfd_get_32 (abfd
, raw
.cryptoff
);
4621 cmd
->cryptsize
= bfd_get_32 (abfd
, raw
.cryptsize
);
4622 cmd
->cryptid
= bfd_get_32 (abfd
, raw
.cryptid
);
4627 bfd_mach_o_read_encryption_info_64 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4629 bfd_mach_o_encryption_info_command
*cmd
= &command
->command
.encryption_info
;
4630 struct mach_o_encryption_info_64_command_external raw
;
4632 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4635 cmd
->cryptoff
= bfd_get_32 (abfd
, raw
.cryptoff
);
4636 cmd
->cryptsize
= bfd_get_32 (abfd
, raw
.cryptsize
);
4637 cmd
->cryptid
= bfd_get_32 (abfd
, raw
.cryptid
);
4642 bfd_mach_o_read_main (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4644 bfd_mach_o_main_command
*cmd
= &command
->command
.main
;
4645 struct mach_o_entry_point_command_external raw
;
4647 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4650 cmd
->entryoff
= bfd_get_64 (abfd
, raw
.entryoff
);
4651 cmd
->stacksize
= bfd_get_64 (abfd
, raw
.stacksize
);
4656 bfd_mach_o_read_source_version (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4658 bfd_mach_o_source_version_command
*cmd
= &command
->command
.source_version
;
4659 struct mach_o_source_version_command_external raw
;
4662 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4665 ver
= bfd_get_64 (abfd
, raw
.version
);
4666 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4667 generates warnings) in case of the host doesn't support 64 bit
4669 cmd
->e
= ver
& 0x3ff;
4671 cmd
->d
= ver
& 0x3ff;
4673 cmd
->c
= ver
& 0x3ff;
4675 cmd
->b
= ver
& 0x3ff;
4677 cmd
->a
= ver
& 0xffffff;
4682 bfd_mach_o_read_segment (bfd
*abfd
,
4683 bfd_mach_o_load_command
*command
,
4686 bfd_mach_o_segment_command
*seg
= &command
->command
.segment
;
4691 struct mach_o_segment_command_64_external raw
;
4693 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SEGMENT_64
);
4695 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4698 memcpy (seg
->segname
, raw
.segname
, 16);
4699 seg
->segname
[16] = '\0';
4701 seg
->vmaddr
= bfd_h_get_64 (abfd
, raw
.vmaddr
);
4702 seg
->vmsize
= bfd_h_get_64 (abfd
, raw
.vmsize
);
4703 seg
->fileoff
= bfd_h_get_64 (abfd
, raw
.fileoff
);
4704 seg
->filesize
= bfd_h_get_64 (abfd
, raw
.filesize
);
4705 seg
->maxprot
= bfd_h_get_32 (abfd
, raw
.maxprot
);
4706 seg
->initprot
= bfd_h_get_32 (abfd
, raw
.initprot
);
4707 seg
->nsects
= bfd_h_get_32 (abfd
, raw
.nsects
);
4708 seg
->flags
= bfd_h_get_32 (abfd
, raw
.flags
);
4712 struct mach_o_segment_command_32_external raw
;
4714 BFD_ASSERT (command
->type
== BFD_MACH_O_LC_SEGMENT
);
4716 if (bfd_bread (&raw
, sizeof (raw
), abfd
) != sizeof (raw
))
4719 memcpy (seg
->segname
, raw
.segname
, 16);
4720 seg
->segname
[16] = '\0';
4722 seg
->vmaddr
= bfd_h_get_32 (abfd
, raw
.vmaddr
);
4723 seg
->vmsize
= bfd_h_get_32 (abfd
, raw
.vmsize
);
4724 seg
->fileoff
= bfd_h_get_32 (abfd
, raw
.fileoff
);
4725 seg
->filesize
= bfd_h_get_32 (abfd
, raw
.filesize
);
4726 seg
->maxprot
= bfd_h_get_32 (abfd
, raw
.maxprot
);
4727 seg
->initprot
= bfd_h_get_32 (abfd
, raw
.initprot
);
4728 seg
->nsects
= bfd_h_get_32 (abfd
, raw
.nsects
);
4729 seg
->flags
= bfd_h_get_32 (abfd
, raw
.flags
);
4731 seg
->sect_head
= NULL
;
4732 seg
->sect_tail
= NULL
;
4734 for (i
= 0; i
< seg
->nsects
; i
++)
4738 sec
= bfd_mach_o_read_section (abfd
, seg
->initprot
, wide
);
4742 bfd_mach_o_append_section_to_segment
4743 (seg
, bfd_mach_o_get_mach_o_section (sec
));
4750 bfd_mach_o_read_segment_32 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4752 return bfd_mach_o_read_segment (abfd
, command
, 0);
4756 bfd_mach_o_read_segment_64 (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4758 return bfd_mach_o_read_segment (abfd
, command
, 1);
4762 bfd_mach_o_read_command (bfd
*abfd
, bfd_mach_o_load_command
*command
)
4764 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4765 struct mach_o_load_command_external raw
;
4768 /* Read command type and length. */
4769 if (bfd_seek (abfd
, mdata
->hdr_offset
+ command
->offset
, SEEK_SET
) != 0
4770 || bfd_bread (&raw
, BFD_MACH_O_LC_SIZE
, abfd
) != BFD_MACH_O_LC_SIZE
)
4773 cmd
= bfd_h_get_32 (abfd
, raw
.cmd
);
4774 command
->type
= cmd
& ~BFD_MACH_O_LC_REQ_DYLD
;
4775 command
->type_required
= cmd
& BFD_MACH_O_LC_REQ_DYLD
? TRUE
: FALSE
;
4776 command
->len
= bfd_h_get_32 (abfd
, raw
.cmdsize
);
4778 switch (command
->type
)
4780 case BFD_MACH_O_LC_SEGMENT
:
4781 if (!bfd_mach_o_read_segment_32 (abfd
, command
))
4784 case BFD_MACH_O_LC_SEGMENT_64
:
4785 if (!bfd_mach_o_read_segment_64 (abfd
, command
))
4788 case BFD_MACH_O_LC_SYMTAB
:
4789 if (!bfd_mach_o_read_symtab (abfd
, command
))
4792 case BFD_MACH_O_LC_SYMSEG
:
4794 case BFD_MACH_O_LC_THREAD
:
4795 case BFD_MACH_O_LC_UNIXTHREAD
:
4796 if (!bfd_mach_o_read_thread (abfd
, command
))
4799 case BFD_MACH_O_LC_LOAD_DYLINKER
:
4800 case BFD_MACH_O_LC_ID_DYLINKER
:
4801 case BFD_MACH_O_LC_DYLD_ENVIRONMENT
:
4802 if (!bfd_mach_o_read_dylinker (abfd
, command
))
4805 case BFD_MACH_O_LC_LOAD_DYLIB
:
4806 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB
:
4807 case BFD_MACH_O_LC_ID_DYLIB
:
4808 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB
:
4809 case BFD_MACH_O_LC_REEXPORT_DYLIB
:
4810 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB
:
4811 if (!bfd_mach_o_read_dylib (abfd
, command
))
4814 case BFD_MACH_O_LC_PREBOUND_DYLIB
:
4815 if (!bfd_mach_o_read_prebound_dylib (abfd
, command
))
4818 case BFD_MACH_O_LC_LOADFVMLIB
:
4819 case BFD_MACH_O_LC_IDFVMLIB
:
4820 if (!bfd_mach_o_read_fvmlib (abfd
, command
))
4823 case BFD_MACH_O_LC_IDENT
:
4824 case BFD_MACH_O_LC_FVMFILE
:
4825 case BFD_MACH_O_LC_PREPAGE
:
4826 case BFD_MACH_O_LC_ROUTINES
:
4827 case BFD_MACH_O_LC_ROUTINES_64
:
4829 case BFD_MACH_O_LC_SUB_FRAMEWORK
:
4830 case BFD_MACH_O_LC_SUB_UMBRELLA
:
4831 case BFD_MACH_O_LC_SUB_LIBRARY
:
4832 case BFD_MACH_O_LC_SUB_CLIENT
:
4833 case BFD_MACH_O_LC_RPATH
:
4834 if (!bfd_mach_o_read_str (abfd
, command
))
4837 case BFD_MACH_O_LC_DYSYMTAB
:
4838 if (!bfd_mach_o_read_dysymtab (abfd
, command
))
4841 case BFD_MACH_O_LC_PREBIND_CKSUM
:
4842 if (!bfd_mach_o_read_prebind_cksum (abfd
, command
))
4845 case BFD_MACH_O_LC_TWOLEVEL_HINTS
:
4846 if (!bfd_mach_o_read_twolevel_hints (abfd
, command
))
4849 case BFD_MACH_O_LC_UUID
:
4850 if (!bfd_mach_o_read_uuid (abfd
, command
))
4853 case BFD_MACH_O_LC_CODE_SIGNATURE
:
4854 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO
:
4855 case BFD_MACH_O_LC_FUNCTION_STARTS
:
4856 case BFD_MACH_O_LC_DATA_IN_CODE
:
4857 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS
:
4858 case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT
:
4859 if (!bfd_mach_o_read_linkedit (abfd
, command
))
4862 case BFD_MACH_O_LC_ENCRYPTION_INFO
:
4863 if (!bfd_mach_o_read_encryption_info (abfd
, command
))
4866 case BFD_MACH_O_LC_ENCRYPTION_INFO_64
:
4867 if (!bfd_mach_o_read_encryption_info_64 (abfd
, command
))
4870 case BFD_MACH_O_LC_DYLD_INFO
:
4871 if (!bfd_mach_o_read_dyld_info (abfd
, command
))
4874 case BFD_MACH_O_LC_VERSION_MIN_MACOSX
:
4875 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS
:
4876 case BFD_MACH_O_LC_VERSION_MIN_WATCHOS
:
4877 if (!bfd_mach_o_read_version_min (abfd
, command
))
4880 case BFD_MACH_O_LC_MAIN
:
4881 if (!bfd_mach_o_read_main (abfd
, command
))
4884 case BFD_MACH_O_LC_SOURCE_VERSION
:
4885 if (!bfd_mach_o_read_source_version (abfd
, command
))
4890 _bfd_error_handler (_("%pB: unknown load command %#x"),
4891 abfd
, command
->type
);
4899 bfd_mach_o_flatten_sections (bfd
*abfd
)
4901 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4902 bfd_mach_o_load_command
*cmd
;
4905 /* Count total number of sections. */
4908 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
4910 if (cmd
->type
== BFD_MACH_O_LC_SEGMENT
4911 || cmd
->type
== BFD_MACH_O_LC_SEGMENT_64
)
4913 bfd_mach_o_segment_command
*seg
= &cmd
->command
.segment
;
4915 mdata
->nsects
+= seg
->nsects
;
4919 /* Allocate sections array. */
4920 mdata
->sections
= bfd_alloc2 (abfd
,
4921 mdata
->nsects
, sizeof (bfd_mach_o_section
*));
4923 /* Fill the array. */
4926 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
4928 if (cmd
->type
== BFD_MACH_O_LC_SEGMENT
4929 || cmd
->type
== BFD_MACH_O_LC_SEGMENT_64
)
4931 bfd_mach_o_segment_command
*seg
= &cmd
->command
.segment
;
4932 bfd_mach_o_section
*sec
;
4934 BFD_ASSERT (csect
+ seg
->nsects
<= mdata
->nsects
);
4936 for (sec
= seg
->sect_head
; sec
!= NULL
; sec
= sec
->next
)
4937 mdata
->sections
[csect
++] = sec
;
4943 bfd_mach_o_scan_start_address (bfd
*abfd
)
4945 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
4946 bfd_mach_o_thread_command
*thr
= NULL
;
4947 bfd_mach_o_load_command
*cmd
;
4950 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
4951 if (cmd
->type
== BFD_MACH_O_LC_THREAD
4952 || cmd
->type
== BFD_MACH_O_LC_UNIXTHREAD
)
4954 thr
= &cmd
->command
.thread
;
4957 else if (cmd
->type
== BFD_MACH_O_LC_MAIN
&& mdata
->nsects
> 1)
4959 bfd_mach_o_main_command
*main_cmd
= &cmd
->command
.main
;
4960 bfd_mach_o_section
*text_sect
= mdata
->sections
[0];
4964 abfd
->start_address
= main_cmd
->entryoff
4965 + (text_sect
->addr
- text_sect
->offset
);
4970 /* An object file has no start address, so do not fail if not found. */
4974 /* FIXME: create a subtarget hook ? */
4975 for (i
= 0; i
< thr
->nflavours
; i
++)
4977 if ((mdata
->header
.cputype
== BFD_MACH_O_CPU_TYPE_I386
)
4978 && (thr
->flavours
[i
].flavour
== BFD_MACH_O_x86_THREAD_STATE32
))
4980 unsigned char buf
[4];
4982 if (bfd_seek (abfd
, thr
->flavours
[i
].offset
+ 40, SEEK_SET
) != 0
4983 || bfd_bread (buf
, 4, abfd
) != 4)
4986 abfd
->start_address
= bfd_h_get_32 (abfd
, buf
);
4988 else if ((mdata
->header
.cputype
== BFD_MACH_O_CPU_TYPE_POWERPC
)
4989 && (thr
->flavours
[i
].flavour
== BFD_MACH_O_PPC_THREAD_STATE
))
4991 unsigned char buf
[4];
4993 if (bfd_seek (abfd
, thr
->flavours
[i
].offset
+ 0, SEEK_SET
) != 0
4994 || bfd_bread (buf
, 4, abfd
) != 4)
4997 abfd
->start_address
= bfd_h_get_32 (abfd
, buf
);
4999 else if ((mdata
->header
.cputype
== BFD_MACH_O_CPU_TYPE_POWERPC_64
)
5000 && (thr
->flavours
[i
].flavour
== BFD_MACH_O_PPC_THREAD_STATE64
))
5002 unsigned char buf
[8];
5004 if (bfd_seek (abfd
, thr
->flavours
[i
].offset
+ 0, SEEK_SET
) != 0
5005 || bfd_bread (buf
, 8, abfd
) != 8)
5008 abfd
->start_address
= bfd_h_get_64 (abfd
, buf
);
5010 else if ((mdata
->header
.cputype
== BFD_MACH_O_CPU_TYPE_X86_64
)
5011 && (thr
->flavours
[i
].flavour
== BFD_MACH_O_x86_THREAD_STATE64
))
5013 unsigned char buf
[8];
5015 if (bfd_seek (abfd
, thr
->flavours
[i
].offset
+ (16 * 8), SEEK_SET
) != 0
5016 || bfd_bread (buf
, 8, abfd
) != 8)
5019 abfd
->start_address
= bfd_h_get_64 (abfd
, buf
);
5027 bfd_mach_o_set_arch_mach (bfd
*abfd
,
5028 enum bfd_architecture arch
,
5029 unsigned long machine
)
5031 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
5033 /* If this isn't the right architecture for this backend, and this
5034 isn't the generic backend, fail. */
5035 if (arch
!= bed
->arch
5036 && arch
!= bfd_arch_unknown
5037 && bed
->arch
!= bfd_arch_unknown
)
5040 return bfd_default_set_arch_mach (abfd
, arch
, machine
);
5044 bfd_mach_o_scan (bfd
*abfd
,
5045 bfd_mach_o_header
*header
,
5046 bfd_mach_o_data_struct
*mdata
)
5049 enum bfd_architecture cputype
;
5050 unsigned long cpusubtype
;
5051 unsigned int hdrsize
;
5053 hdrsize
= mach_o_wide_p (header
) ?
5054 BFD_MACH_O_HEADER_64_SIZE
: BFD_MACH_O_HEADER_SIZE
;
5056 mdata
->header
= *header
;
5058 abfd
->flags
= abfd
->flags
& BFD_IN_MEMORY
;
5059 switch (header
->filetype
)
5061 case BFD_MACH_O_MH_OBJECT
:
5062 abfd
->flags
|= HAS_RELOC
;
5064 case BFD_MACH_O_MH_EXECUTE
:
5065 abfd
->flags
|= EXEC_P
;
5067 case BFD_MACH_O_MH_DYLIB
:
5068 case BFD_MACH_O_MH_BUNDLE
:
5069 abfd
->flags
|= DYNAMIC
;
5073 abfd
->tdata
.mach_o_data
= mdata
;
5075 bfd_mach_o_convert_architecture (header
->cputype
, header
->cpusubtype
,
5076 &cputype
, &cpusubtype
);
5077 if (cputype
== bfd_arch_unknown
)
5080 /* xgettext:c-format */
5081 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
5082 header
->cputype
, header
->cpusubtype
);
5086 bfd_set_arch_mach (abfd
, cputype
, cpusubtype
);
5088 if (header
->ncmds
!= 0)
5090 bfd_mach_o_load_command
*cmd
;
5092 mdata
->first_command
= NULL
;
5093 mdata
->last_command
= NULL
;
5095 cmd
= bfd_alloc2 (abfd
, header
->ncmds
, sizeof (bfd_mach_o_load_command
));
5099 for (i
= 0; i
< header
->ncmds
; i
++)
5101 bfd_mach_o_load_command
*cur
= &cmd
[i
];
5103 bfd_mach_o_append_command (abfd
, cur
);
5106 cur
->offset
= hdrsize
;
5109 bfd_mach_o_load_command
*prev
= &cmd
[i
- 1];
5110 cur
->offset
= prev
->offset
+ prev
->len
;
5113 if (!bfd_mach_o_read_command (abfd
, cur
))
5118 /* Sections should be flatten before scanning start address. */
5119 bfd_mach_o_flatten_sections (abfd
);
5120 if (!bfd_mach_o_scan_start_address (abfd
))
5127 bfd_mach_o_mkobject_init (bfd
*abfd
)
5129 bfd_mach_o_data_struct
*mdata
= NULL
;
5131 mdata
= bfd_zalloc (abfd
, sizeof (bfd_mach_o_data_struct
));
5134 abfd
->tdata
.mach_o_data
= mdata
;
5136 mdata
->header
.magic
= 0;
5137 mdata
->header
.cputype
= 0;
5138 mdata
->header
.cpusubtype
= 0;
5139 mdata
->header
.filetype
= 0;
5140 mdata
->header
.ncmds
= 0;
5141 mdata
->header
.sizeofcmds
= 0;
5142 mdata
->header
.flags
= 0;
5143 mdata
->header
.byteorder
= BFD_ENDIAN_UNKNOWN
;
5144 mdata
->first_command
= NULL
;
5145 mdata
->last_command
= NULL
;
5147 mdata
->sections
= NULL
;
5148 mdata
->dyn_reloc_cache
= NULL
;
5154 bfd_mach_o_gen_mkobject (bfd
*abfd
)
5156 bfd_mach_o_data_struct
*mdata
;
5158 if (!bfd_mach_o_mkobject_init (abfd
))
5161 mdata
= bfd_mach_o_get_data (abfd
);
5162 mdata
->header
.magic
= BFD_MACH_O_MH_MAGIC
;
5163 mdata
->header
.cputype
= 0;
5164 mdata
->header
.cpusubtype
= 0;
5165 mdata
->header
.byteorder
= abfd
->xvec
->byteorder
;
5166 mdata
->header
.version
= 1;
5172 bfd_mach_o_header_p (bfd
*abfd
,
5174 bfd_mach_o_filetype filetype
,
5175 bfd_mach_o_cpu_type cputype
)
5177 bfd_mach_o_header header
;
5178 bfd_mach_o_data_struct
*mdata
;
5180 if (!bfd_mach_o_read_header (abfd
, hdr_off
, &header
))
5183 if (! (header
.byteorder
== BFD_ENDIAN_BIG
5184 || header
.byteorder
== BFD_ENDIAN_LITTLE
))
5186 _bfd_error_handler (_("unknown header byte-order value %#x"),
5191 if (! ((header
.byteorder
== BFD_ENDIAN_BIG
5192 && abfd
->xvec
->byteorder
== BFD_ENDIAN_BIG
5193 && abfd
->xvec
->header_byteorder
== BFD_ENDIAN_BIG
)
5194 || (header
.byteorder
== BFD_ENDIAN_LITTLE
5195 && abfd
->xvec
->byteorder
== BFD_ENDIAN_LITTLE
5196 && abfd
->xvec
->header_byteorder
== BFD_ENDIAN_LITTLE
)))
5199 /* Check cputype and filetype.
5200 In case of wildcard, do not accept magics that are handled by existing
5204 if (header
.cputype
!= cputype
)
5210 /* Do not recognize 64 architectures if not configured for 64bit targets.
5211 This could happen only for generic targets. */
5212 if (mach_o_wide_p (&header
))
5219 if (header
.filetype
!= filetype
)
5224 switch (header
.filetype
)
5226 case BFD_MACH_O_MH_CORE
:
5227 /* Handled by core_p */
5234 mdata
= (bfd_mach_o_data_struct
*) bfd_zalloc (abfd
, sizeof (*mdata
));
5237 mdata
->hdr_offset
= hdr_off
;
5239 if (!bfd_mach_o_scan (abfd
, &header
, mdata
))
5245 bfd_set_error (bfd_error_wrong_format
);
5251 static const bfd_target
*
5252 bfd_mach_o_gen_object_p (bfd
*abfd
)
5254 return bfd_mach_o_header_p (abfd
, 0, 0, 0);
5257 static const bfd_target
*
5258 bfd_mach_o_gen_core_p (bfd
*abfd
)
5260 return bfd_mach_o_header_p (abfd
, 0, BFD_MACH_O_MH_CORE
, 0);
5263 /* Return the base address of ABFD, ie the address at which the image is
5264 mapped. The possible initial pagezero is ignored. */
5267 bfd_mach_o_get_base_address (bfd
*abfd
)
5269 bfd_mach_o_data_struct
*mdata
;
5270 bfd_mach_o_load_command
*cmd
;
5272 /* Check for Mach-O. */
5273 if (!bfd_mach_o_valid (abfd
))
5275 mdata
= bfd_mach_o_get_data (abfd
);
5277 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
5279 if ((cmd
->type
== BFD_MACH_O_LC_SEGMENT
5280 || cmd
->type
== BFD_MACH_O_LC_SEGMENT_64
))
5282 struct bfd_mach_o_segment_command
*segcmd
= &cmd
->command
.segment
;
5284 if (segcmd
->initprot
!= 0)
5285 return segcmd
->vmaddr
;
5291 typedef struct mach_o_fat_archentry
5293 unsigned long cputype
;
5294 unsigned long cpusubtype
;
5295 unsigned long offset
;
5297 unsigned long align
;
5298 } mach_o_fat_archentry
;
5300 typedef struct mach_o_fat_data_struct
5302 unsigned long magic
;
5303 unsigned long nfat_arch
;
5304 mach_o_fat_archentry
*archentries
;
5305 } mach_o_fat_data_struct
;
5308 bfd_mach_o_fat_archive_p (bfd
*abfd
)
5310 mach_o_fat_data_struct
*adata
= NULL
;
5311 struct mach_o_fat_header_external hdr
;
5314 if (bfd_seek (abfd
, 0, SEEK_SET
) != 0
5315 || bfd_bread (&hdr
, sizeof (hdr
), abfd
) != sizeof (hdr
))
5318 adata
= bfd_alloc (abfd
, sizeof (mach_o_fat_data_struct
));
5322 adata
->magic
= bfd_getb32 (hdr
.magic
);
5323 adata
->nfat_arch
= bfd_getb32 (hdr
.nfat_arch
);
5324 if (adata
->magic
!= 0xcafebabe)
5326 /* Avoid matching Java bytecode files, which have the same magic number.
5327 In the Java bytecode file format this field contains the JVM version,
5328 which starts at 43.0. */
5329 if (adata
->nfat_arch
> 30)
5332 adata
->archentries
=
5333 bfd_alloc2 (abfd
, adata
->nfat_arch
, sizeof (mach_o_fat_archentry
));
5334 if (adata
->archentries
== NULL
)
5337 for (i
= 0; i
< adata
->nfat_arch
; i
++)
5339 struct mach_o_fat_arch_external arch
;
5340 if (bfd_bread (&arch
, sizeof (arch
), abfd
) != sizeof (arch
))
5342 adata
->archentries
[i
].cputype
= bfd_getb32 (arch
.cputype
);
5343 adata
->archentries
[i
].cpusubtype
= bfd_getb32 (arch
.cpusubtype
);
5344 adata
->archentries
[i
].offset
= bfd_getb32 (arch
.offset
);
5345 adata
->archentries
[i
].size
= bfd_getb32 (arch
.size
);
5346 adata
->archentries
[i
].align
= bfd_getb32 (arch
.align
);
5349 abfd
->tdata
.mach_o_fat_data
= adata
;
5355 bfd_release (abfd
, adata
);
5356 bfd_set_error (bfd_error_wrong_format
);
5360 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5361 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5362 Set arelt_data and origin fields too. */
5365 bfd_mach_o_fat_member_init (bfd
*abfd
,
5366 enum bfd_architecture arch_type
,
5367 unsigned long arch_subtype
,
5368 mach_o_fat_archentry
*entry
)
5370 struct areltdata
*areltdata
;
5371 /* Create the member filename. Use ARCH_NAME. */
5372 const bfd_arch_info_type
*ap
= bfd_lookup_arch (arch_type
, arch_subtype
);
5376 /* Use the architecture name if known. */
5377 abfd
->filename
= xstrdup (ap
->printable_name
);
5381 /* Forge a uniq id. */
5382 const size_t namelen
= 2 + 8 + 1 + 2 + 8 + 1;
5383 char *name
= xmalloc (namelen
);
5384 snprintf (name
, namelen
, "0x%lx-0x%lx",
5385 entry
->cputype
, entry
->cpusubtype
);
5386 abfd
->filename
= name
;
5389 areltdata
= bfd_zmalloc (sizeof (struct areltdata
));
5390 areltdata
->parsed_size
= entry
->size
;
5391 abfd
->arelt_data
= areltdata
;
5392 abfd
->iostream
= NULL
;
5393 abfd
->origin
= entry
->offset
;
5397 bfd_mach_o_fat_openr_next_archived_file (bfd
*archive
, bfd
*prev
)
5399 mach_o_fat_data_struct
*adata
;
5400 mach_o_fat_archentry
*entry
= NULL
;
5403 enum bfd_architecture arch_type
;
5404 unsigned long arch_subtype
;
5406 adata
= (mach_o_fat_data_struct
*) archive
->tdata
.mach_o_fat_data
;
5407 BFD_ASSERT (adata
!= NULL
);
5409 /* Find index of previous entry. */
5412 /* Start at first one. */
5417 /* Find index of PREV. */
5418 for (i
= 0; i
< adata
->nfat_arch
; i
++)
5420 if (adata
->archentries
[i
].offset
== prev
->origin
)
5424 if (i
== adata
->nfat_arch
)
5427 bfd_set_error (bfd_error_bad_value
);
5431 /* Get next entry. */
5435 if (i
>= adata
->nfat_arch
)
5437 bfd_set_error (bfd_error_no_more_archived_files
);
5441 entry
= &adata
->archentries
[i
];
5442 nbfd
= _bfd_new_bfd_contained_in (archive
);
5446 bfd_mach_o_convert_architecture (entry
->cputype
, entry
->cpusubtype
,
5447 &arch_type
, &arch_subtype
);
5449 bfd_mach_o_fat_member_init (nbfd
, arch_type
, arch_subtype
, entry
);
5451 bfd_set_arch_mach (nbfd
, arch_type
, arch_subtype
);
5456 /* Analogous to stat call. */
5459 bfd_mach_o_fat_stat_arch_elt (bfd
*abfd
, struct stat
*buf
)
5461 if (abfd
->arelt_data
== NULL
)
5463 bfd_set_error (bfd_error_invalid_operation
);
5470 buf
->st_mode
= 0644;
5471 buf
->st_size
= arelt_size (abfd
);
5476 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5477 If ABFD is a fat image containing a member that corresponds to FORMAT
5478 and ARCH, returns it.
5479 In other case, returns NULL.
5480 This function allows transparent uses of fat images. */
5483 bfd_mach_o_fat_extract (bfd
*abfd
,
5485 const bfd_arch_info_type
*arch
)
5488 mach_o_fat_data_struct
*adata
;
5491 if (bfd_check_format (abfd
, format
))
5493 if (bfd_get_arch_info (abfd
) == arch
)
5497 if (!bfd_check_format (abfd
, bfd_archive
)
5498 || abfd
->xvec
!= &mach_o_fat_vec
)
5501 /* This is a Mach-O fat image. */
5502 adata
= (mach_o_fat_data_struct
*) abfd
->tdata
.mach_o_fat_data
;
5503 BFD_ASSERT (adata
!= NULL
);
5505 for (i
= 0; i
< adata
->nfat_arch
; i
++)
5507 struct mach_o_fat_archentry
*e
= &adata
->archentries
[i
];
5508 enum bfd_architecture cpu_type
;
5509 unsigned long cpu_subtype
;
5511 bfd_mach_o_convert_architecture (e
->cputype
, e
->cpusubtype
,
5512 &cpu_type
, &cpu_subtype
);
5513 if (cpu_type
!= arch
->arch
|| cpu_subtype
!= arch
->mach
)
5516 /* The architecture is found. */
5517 res
= _bfd_new_bfd_contained_in (abfd
);
5521 bfd_mach_o_fat_member_init (res
, cpu_type
, cpu_subtype
, e
);
5523 if (bfd_check_format (res
, format
))
5525 BFD_ASSERT (bfd_get_arch_info (res
) == arch
);
5536 bfd_mach_o_fat_close_and_cleanup (bfd
*abfd
)
5538 _bfd_unlink_from_archive_parent (abfd
);
5543 bfd_mach_o_lookup_command (bfd
*abfd
,
5544 bfd_mach_o_load_command_type type
,
5545 bfd_mach_o_load_command
**mcommand
)
5547 struct mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5548 struct bfd_mach_o_load_command
*cmd
;
5551 BFD_ASSERT (mdata
!= NULL
);
5552 BFD_ASSERT (mcommand
!= NULL
);
5555 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
5557 if (cmd
->type
!= type
)
5569 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type
)
5573 case BFD_MACH_O_CPU_TYPE_MC680x0
:
5575 case BFD_MACH_O_CPU_TYPE_POWERPC
:
5577 case BFD_MACH_O_CPU_TYPE_I386
:
5579 case BFD_MACH_O_CPU_TYPE_SPARC
:
5581 case BFD_MACH_O_CPU_TYPE_HPPA
:
5582 return 0xc0000000 - 0x04000000;
5588 /* The following two tables should be kept, as far as possible, in order of
5589 most frequently used entries to optimize their use from gas. */
5591 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name
[] =
5593 { "regular", BFD_MACH_O_S_REGULAR
},
5594 { "coalesced", BFD_MACH_O_S_COALESCED
},
5595 { "zerofill", BFD_MACH_O_S_ZEROFILL
},
5596 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS
},
5597 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS
},
5598 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS
},
5599 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS
},
5600 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS
},
5601 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS
},
5602 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS
},
5603 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL
},
5604 { "interposing", BFD_MACH_O_S_INTERPOSING
},
5605 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF
},
5606 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS
},
5607 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS
},
5608 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS
},
5609 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS
},
5613 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name
[] =
5615 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
},
5616 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
},
5617 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC
},
5618 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC
},
5619 { "debug", BFD_MACH_O_S_ATTR_DEBUG
},
5620 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT
},
5621 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP
},
5622 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
},
5623 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC
},
5624 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE
},
5625 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE
},
5629 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5632 bfd_mach_o_get_section_type_from_name (bfd
*abfd
, const char *name
)
5634 const bfd_mach_o_xlat_name
*x
;
5635 bfd_mach_o_backend_data
*bed
= bfd_mach_o_get_backend_data (abfd
);
5637 for (x
= bfd_mach_o_section_type_name
; x
->name
; x
++)
5638 if (strcmp (x
->name
, name
) == 0)
5640 /* We found it... does the target support it? */
5641 if (bed
->bfd_mach_o_section_type_valid_for_target
== NULL
5642 || bed
->bfd_mach_o_section_type_valid_for_target (x
->val
))
5643 return x
->val
; /* OK. */
5645 break; /* Not supported. */
5647 /* Maximum section ID = 0xff. */
5651 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5654 bfd_mach_o_get_section_attribute_from_name (const char *name
)
5656 const bfd_mach_o_xlat_name
*x
;
5658 for (x
= bfd_mach_o_section_attribute_name
; x
->name
; x
++)
5659 if (strcmp (x
->name
, name
) == 0)
5661 return (unsigned int)-1;
5665 bfd_mach_o_core_fetch_environment (bfd
*abfd
,
5666 unsigned char **rbuf
,
5669 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5670 unsigned long stackaddr
= bfd_mach_o_stack_addr (mdata
->header
.cputype
);
5671 bfd_mach_o_load_command
*cmd
;
5673 for (cmd
= mdata
->first_command
; cmd
!= NULL
; cmd
= cmd
->next
)
5675 bfd_mach_o_segment_command
*seg
;
5677 if (cmd
->type
!= BFD_MACH_O_LC_SEGMENT
)
5680 seg
= &cmd
->command
.segment
;
5682 if ((seg
->vmaddr
+ seg
->vmsize
) == stackaddr
)
5684 unsigned long start
= seg
->fileoff
;
5685 unsigned long end
= seg
->fileoff
+ seg
->filesize
;
5686 unsigned char *buf
= bfd_malloc (1024);
5687 unsigned long size
= 1024;
5691 bfd_size_type nread
= 0;
5692 unsigned long offset
;
5693 int found_nonnull
= 0;
5695 if (size
> (end
- start
))
5696 size
= (end
- start
);
5698 buf
= bfd_realloc_or_free (buf
, size
);
5702 if (bfd_seek (abfd
, end
- size
, SEEK_SET
) != 0)
5708 nread
= bfd_bread (buf
, size
, abfd
);
5716 for (offset
= 4; offset
<= size
; offset
+= 4)
5720 val
= *((unsigned long *) (buf
+ size
- offset
));
5721 if (! found_nonnull
)
5726 else if (val
== 0x0)
5728 unsigned long bottom
;
5731 bottom
= seg
->fileoff
+ seg
->filesize
- offset
;
5732 top
= seg
->fileoff
+ seg
->filesize
- 4;
5733 *rbuf
= bfd_malloc (top
- bottom
);
5734 *rlen
= top
- bottom
;
5736 memcpy (*rbuf
, buf
+ size
- *rlen
, *rlen
);
5742 if (size
== (end
- start
))
5756 bfd_mach_o_core_file_failing_command (bfd
*abfd
)
5758 unsigned char *buf
= NULL
;
5759 unsigned int len
= 0;
5762 ret
= bfd_mach_o_core_fetch_environment (abfd
, &buf
, &len
);
5766 return (char *) buf
;
5770 bfd_mach_o_core_file_failing_signal (bfd
*abfd ATTRIBUTE_UNUSED
)
5775 static bfd_mach_o_uuid_command
*
5776 bfd_mach_o_lookup_uuid_command (bfd
*abfd
)
5778 bfd_mach_o_load_command
*uuid_cmd
= NULL
;
5779 int ncmd
= bfd_mach_o_lookup_command (abfd
, BFD_MACH_O_LC_UUID
, &uuid_cmd
);
5780 if (ncmd
!= 1 || uuid_cmd
== NULL
)
5782 return &uuid_cmd
->command
.uuid
;
5785 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5788 bfd_mach_o_dsym_for_uuid_p (bfd
*abfd
, const bfd_mach_o_uuid_command
*uuid_cmd
)
5790 bfd_mach_o_uuid_command
*dsym_uuid_cmd
;
5793 BFD_ASSERT (uuid_cmd
);
5795 if (!bfd_check_format (abfd
, bfd_object
))
5798 if (bfd_get_flavour (abfd
) != bfd_target_mach_o_flavour
5799 || bfd_mach_o_get_data (abfd
) == NULL
5800 || bfd_mach_o_get_data (abfd
)->header
.filetype
!= BFD_MACH_O_MH_DSYM
)
5803 dsym_uuid_cmd
= bfd_mach_o_lookup_uuid_command (abfd
);
5804 if (dsym_uuid_cmd
== NULL
)
5807 if (memcmp (uuid_cmd
->uuid
, dsym_uuid_cmd
->uuid
,
5808 sizeof (uuid_cmd
->uuid
)) != 0)
5814 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5815 The caller is responsible for closing the returned BFD object and
5816 its my_archive if the returned BFD is in a fat dSYM. */
5819 bfd_mach_o_find_dsym (const char *dsym_filename
,
5820 const bfd_mach_o_uuid_command
*uuid_cmd
,
5821 const bfd_arch_info_type
*arch
)
5823 bfd
*base_dsym_bfd
, *dsym_bfd
;
5825 BFD_ASSERT (uuid_cmd
);
5827 base_dsym_bfd
= bfd_openr (dsym_filename
, NULL
);
5828 if (base_dsym_bfd
== NULL
)
5831 dsym_bfd
= bfd_mach_o_fat_extract (base_dsym_bfd
, bfd_object
, arch
);
5832 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd
, uuid_cmd
))
5835 bfd_close (dsym_bfd
);
5836 if (base_dsym_bfd
!= dsym_bfd
)
5837 bfd_close (base_dsym_bfd
);
5842 /* Return a BFD created from a dSYM file for ABFD.
5843 The caller is responsible for closing the returned BFD object, its
5844 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5847 bfd_mach_o_follow_dsym (bfd
*abfd
)
5849 char *dsym_filename
;
5850 bfd_mach_o_uuid_command
*uuid_cmd
;
5851 bfd
*dsym_bfd
, *base_bfd
= abfd
;
5852 const char *base_basename
;
5854 if (abfd
== NULL
|| bfd_get_flavour (abfd
) != bfd_target_mach_o_flavour
)
5857 if (abfd
->my_archive
&& !bfd_is_thin_archive (abfd
->my_archive
))
5858 base_bfd
= abfd
->my_archive
;
5859 /* BFD may have been opened from a stream. */
5860 if (base_bfd
->filename
== NULL
)
5862 bfd_set_error (bfd_error_invalid_operation
);
5865 base_basename
= lbasename (base_bfd
->filename
);
5867 uuid_cmd
= bfd_mach_o_lookup_uuid_command (abfd
);
5868 if (uuid_cmd
== NULL
)
5871 /* TODO: We assume the DWARF file has the same as the binary's.
5872 It seems apple's GDB checks all files in the dSYM bundle directory.
5873 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5875 dsym_filename
= (char *)bfd_malloc (strlen (base_bfd
->filename
)
5876 + strlen (dsym_subdir
) + 1
5877 + strlen (base_basename
) + 1);
5878 sprintf (dsym_filename
, "%s%s/%s",
5879 base_bfd
->filename
, dsym_subdir
, base_basename
);
5881 dsym_bfd
= bfd_mach_o_find_dsym (dsym_filename
, uuid_cmd
,
5882 bfd_get_arch_info (abfd
));
5883 if (dsym_bfd
== NULL
)
5884 free (dsym_filename
);
5890 bfd_mach_o_find_nearest_line (bfd
*abfd
,
5894 const char **filename_ptr
,
5895 const char **functionname_ptr
,
5896 unsigned int *line_ptr
,
5897 unsigned int *discriminator_ptr
)
5899 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5902 switch (mdata
->header
.filetype
)
5904 case BFD_MACH_O_MH_OBJECT
:
5906 case BFD_MACH_O_MH_EXECUTE
:
5907 case BFD_MACH_O_MH_DYLIB
:
5908 case BFD_MACH_O_MH_BUNDLE
:
5909 case BFD_MACH_O_MH_KEXT_BUNDLE
:
5910 if (mdata
->dwarf2_find_line_info
== NULL
)
5912 mdata
->dsym_bfd
= bfd_mach_o_follow_dsym (abfd
);
5913 /* When we couldn't find dSYM for this binary, we look for
5914 the debug information in the binary itself. In this way,
5915 we won't try finding separated dSYM again because
5916 mdata->dwarf2_find_line_info will be filled. */
5917 if (! mdata
->dsym_bfd
)
5919 if (! _bfd_dwarf2_slurp_debug_info (abfd
, mdata
->dsym_bfd
,
5920 dwarf_debug_sections
, symbols
,
5921 &mdata
->dwarf2_find_line_info
,
5929 return _bfd_dwarf2_find_nearest_line (abfd
, symbols
, NULL
, section
, offset
,
5930 filename_ptr
, functionname_ptr
,
5931 line_ptr
, discriminator_ptr
,
5932 dwarf_debug_sections
, 0,
5933 &mdata
->dwarf2_find_line_info
);
5937 bfd_mach_o_close_and_cleanup (bfd
*abfd
)
5939 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5940 if (bfd_get_format (abfd
) == bfd_object
&& mdata
!= NULL
)
5942 _bfd_dwarf2_cleanup_debug_info (abfd
, &mdata
->dwarf2_find_line_info
);
5943 bfd_mach_o_free_cached_info (abfd
);
5944 if (mdata
->dsym_bfd
!= NULL
)
5946 bfd
*fat_bfd
= mdata
->dsym_bfd
->my_archive
;
5948 /* FIXME: PR 19435: This calculation to find the memory allocated by
5949 bfd_mach_o_follow_dsym for the filename does not always end up
5950 selecting the correct pointer. Unfortunately this problem is
5951 very hard to reproduce on a non Mach-O native system, so until it
5952 can be traced and fixed on such a system, this code will remain
5953 commented out. This does mean that there will be a memory leak,
5954 but it is small, and happens when we are closing down, so it
5955 should not matter too much. */
5956 char *dsym_filename
= (char *)(fat_bfd
5958 : mdata
->dsym_bfd
->filename
);
5960 bfd_close (mdata
->dsym_bfd
);
5961 mdata
->dsym_bfd
= NULL
;
5963 bfd_close (fat_bfd
);
5965 free (dsym_filename
);
5970 return _bfd_generic_close_and_cleanup (abfd
);
5974 bfd_mach_o_free_cached_info (bfd
*abfd
)
5976 bfd_mach_o_data_struct
*mdata
= bfd_mach_o_get_data (abfd
);
5978 free (mdata
->dyn_reloc_cache
);
5979 mdata
->dyn_reloc_cache
= NULL
;
5980 for (asect
= abfd
->sections
; asect
!= NULL
; asect
= asect
->next
)
5982 free (asect
->relocation
);
5983 asect
->relocation
= NULL
;
5989 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5990 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5992 #define bfd_mach_o_canonicalize_one_reloc NULL
5993 #define bfd_mach_o_swap_reloc_out NULL
5994 #define bfd_mach_o_print_thread NULL
5995 #define bfd_mach_o_tgt_seg_table NULL
5996 #define bfd_mach_o_section_type_valid_for_tgt NULL
5998 #define TARGET_NAME mach_o_be_vec
5999 #define TARGET_STRING "mach-o-be"
6000 #define TARGET_ARCHITECTURE bfd_arch_unknown
6001 #define TARGET_PAGESIZE 1
6002 #define TARGET_BIG_ENDIAN 1
6003 #define TARGET_ARCHIVE 0
6004 #define TARGET_PRIORITY 1
6005 #include "mach-o-target.c"
6008 #undef TARGET_STRING
6009 #undef TARGET_ARCHITECTURE
6010 #undef TARGET_PAGESIZE
6011 #undef TARGET_BIG_ENDIAN
6012 #undef TARGET_ARCHIVE
6013 #undef TARGET_PRIORITY
6015 #define TARGET_NAME mach_o_le_vec
6016 #define TARGET_STRING "mach-o-le"
6017 #define TARGET_ARCHITECTURE bfd_arch_unknown
6018 #define TARGET_PAGESIZE 1
6019 #define TARGET_BIG_ENDIAN 0
6020 #define TARGET_ARCHIVE 0
6021 #define TARGET_PRIORITY 1
6023 #include "mach-o-target.c"
6026 #undef TARGET_STRING
6027 #undef TARGET_ARCHITECTURE
6028 #undef TARGET_PAGESIZE
6029 #undef TARGET_BIG_ENDIAN
6030 #undef TARGET_ARCHIVE
6031 #undef TARGET_PRIORITY
6033 /* Not yet handled: creating an archive. */
6034 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
6036 #define bfd_mach_o_close_and_cleanup bfd_mach_o_fat_close_and_cleanup
6039 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
6040 #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file
6041 #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p
6043 #define TARGET_NAME mach_o_fat_vec
6044 #define TARGET_STRING "mach-o-fat"
6045 #define TARGET_ARCHITECTURE bfd_arch_unknown
6046 #define TARGET_PAGESIZE 1
6047 #define TARGET_BIG_ENDIAN 1
6048 #define TARGET_ARCHIVE 1
6049 #define TARGET_PRIORITY 0
6051 #include "mach-o-target.c"
6054 #undef TARGET_STRING
6055 #undef TARGET_ARCHITECTURE
6056 #undef TARGET_PAGESIZE
6057 #undef TARGET_BIG_ENDIAN
6058 #undef TARGET_ARCHIVE
6059 #undef TARGET_PRIORITY