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;
595 /* Copy any private info we understand from the input bfd
596 to the output bfd. */
599 bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd)
601 bfd_mach_o_data_struct *imdata;
602 bfd_mach_o_data_struct *omdata;
603 bfd_mach_o_load_command *icmd;
605 if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
606 || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
609 BFD_ASSERT (bfd_mach_o_valid (ibfd));
610 BFD_ASSERT (bfd_mach_o_valid (obfd));
612 imdata = bfd_mach_o_get_data (ibfd);
613 omdata = bfd_mach_o_get_data (obfd);
615 /* Copy header flags. */
616 omdata->header.flags = imdata->header.flags;
619 for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next)
621 bfd_mach_o_load_command *ocmd;
625 case BFD_MACH_O_LC_LOAD_DYLIB:
626 case BFD_MACH_O_LC_LOAD_DYLINKER:
627 case BFD_MACH_O_LC_DYLD_INFO:
628 /* Command is copied. */
629 ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command));
633 /* Copy common fields. */
634 ocmd->type = icmd->type;
635 ocmd->type_required = icmd->type_required;
637 ocmd->len = icmd->len;
641 /* Command is not copied. */
648 case BFD_MACH_O_LC_LOAD_DYLIB:
650 bfd_mach_o_dylib_command *idy = &icmd->command.dylib;
651 bfd_mach_o_dylib_command *ody = &ocmd->command.dylib;
653 ody->name_offset = idy->name_offset;
654 ody->timestamp = idy->timestamp;
655 ody->current_version = idy->current_version;
656 ody->compatibility_version = idy->compatibility_version;
657 ody->name_str = idy->name_str;
661 case BFD_MACH_O_LC_LOAD_DYLINKER:
663 bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker;
664 bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker;
666 ody->name_offset = idy->name_offset;
667 ody->name_str = idy->name_str;
671 case BFD_MACH_O_LC_DYLD_INFO:
673 bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info;
674 bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info;
676 if (bfd_mach_o_read_dyld_content (ibfd, idy))
678 ody->rebase_size = idy->rebase_size;
679 ody->rebase_content = idy->rebase_content;
681 ody->bind_size = idy->bind_size;
682 ody->bind_content = idy->bind_content;
684 ody->weak_bind_size = idy->weak_bind_size;
685 ody->weak_bind_content = idy->weak_bind_content;
687 ody->lazy_bind_size = idy->lazy_bind_size;
688 ody->lazy_bind_content = idy->lazy_bind_content;
690 ody->export_size = idy->export_size;
691 ody->export_content = idy->export_content;
693 /* PR 17512L: file: 730e492d. */
698 ody->weak_bind_size =
699 ody->lazy_bind_size =
700 ody->export_size = 0;
701 ody->rebase_content =
703 ody->weak_bind_content =
704 ody->lazy_bind_content =
705 ody->export_content = NULL;
711 /* That command should be handled. */
715 /* Insert command. */
716 bfd_mach_o_append_command (obfd, ocmd);
722 /* This allows us to set up to 32 bits of flags (unless we invent some
723 fiendish scheme to subdivide). For now, we'll just set the file flags
724 without error checking - just overwrite. */
727 bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags)
729 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
734 mdata->header.flags = flags;
738 /* Count the total number of symbols. */
741 bfd_mach_o_count_symbols (bfd *abfd)
743 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
745 if (mdata->symtab == NULL)
747 return mdata->symtab->nsyms;
751 bfd_mach_o_get_symtab_upper_bound (bfd *abfd)
753 long nsyms = bfd_mach_o_count_symbols (abfd);
755 return ((nsyms + 1) * sizeof (asymbol *));
759 bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation)
761 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
762 long nsyms = bfd_mach_o_count_symbols (abfd);
763 bfd_mach_o_symtab_command *sym = mdata->symtab;
771 /* Do not try to read symbols if there are none. */
776 if (!bfd_mach_o_read_symtab_symbols (abfd))
779 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
783 BFD_ASSERT (sym->symbols != NULL);
785 for (j = 0; j < sym->nsyms; j++)
786 alocation[j] = &sym->symbols[j].symbol;
793 /* Create synthetic symbols for indirect symbols. */
796 bfd_mach_o_get_synthetic_symtab (bfd *abfd,
797 long symcount ATTRIBUTE_UNUSED,
798 asymbol **syms ATTRIBUTE_UNUSED,
799 long dynsymcount ATTRIBUTE_UNUSED,
800 asymbol **dynsyms ATTRIBUTE_UNUSED,
803 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
804 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
805 bfd_mach_o_symtab_command *symtab = mdata->symtab;
809 unsigned long count, i, j, n;
813 const char stub [] = "$stub";
817 /* Stop now if no symbols or no indirect symbols. */
818 if (dysymtab == NULL || dysymtab->nindirectsyms == 0
819 || symtab == NULL || symtab->symbols == NULL)
822 /* We need to allocate a bfd symbol for every indirect symbol and to
823 allocate the memory for its name. */
824 count = dysymtab->nindirectsyms;
825 size = count * sizeof (asymbol) + 1;
827 for (j = 0; j < count; j++)
830 unsigned int isym = dysymtab->indirect_syms[j];
832 /* Some indirect symbols are anonymous. */
833 if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name))
834 /* PR 17512: file: f5b8eeba. */
835 size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub);
838 s_start = bfd_malloc (size);
839 s = *ret = (asymbol *) s_start;
842 names = (char *) (s + count);
845 s_end = s_start + size;
848 for (i = 0; i < mdata->nsects; i++)
850 bfd_mach_o_section *sec = mdata->sections[i];
851 unsigned int first, last;
855 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
857 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
858 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
859 case BFD_MACH_O_S_SYMBOL_STUBS:
860 /* Only these sections have indirect symbols. */
861 first = sec->reserved1;
862 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
864 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
866 /* PR 17512: file: 08e15eec. */
867 if (first >= count || last >= count || first > last)
870 for (j = first; j < last; j++)
872 unsigned int isym = dysymtab->indirect_syms[j];
874 /* PR 17512: file: 04d64d9b. */
875 if (((char *) s) + sizeof (* s) > s_end)
878 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
879 s->section = sec->bfdsection;
880 s->value = addr - sec->addr;
883 if (isym < symtab->nsyms
884 && symtab->symbols[isym].symbol.name)
886 const char *sym = symtab->symbols[isym].symbol.name;
891 /* PR 17512: file: 47dfd4d2. */
892 if (names + len >= s_end)
894 memcpy (names, sym, len);
896 /* PR 17512: file: 18f340a4. */
897 if (names + sizeof (stub) >= s_end)
899 memcpy (names, stub, sizeof (stub));
900 names += sizeof (stub);
924 bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
928 bfd_symbol_info (symbol, ret);
932 bfd_mach_o_print_symbol (bfd *abfd,
935 bfd_print_symbol_type how)
937 FILE *file = (FILE *) afile;
939 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
943 case bfd_print_symbol_name:
944 fprintf (file, "%s", symbol->name);
947 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
948 if (asym->n_type & BFD_MACH_O_N_STAB)
949 name = bfd_get_stab_name (asym->n_type);
951 switch (asym->n_type & BFD_MACH_O_N_TYPE)
953 case BFD_MACH_O_N_UNDF:
954 if (symbol->value == 0)
959 case BFD_MACH_O_N_ABS:
962 case BFD_MACH_O_N_INDR:
965 case BFD_MACH_O_N_PBUD:
968 case BFD_MACH_O_N_SECT:
977 fprintf (file, " %02x %-6s %02x %04x",
978 asym->n_type, name, asym->n_sect, asym->n_desc);
979 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
980 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
981 fprintf (file, " [%s]", symbol->section->name);
982 fprintf (file, " %s", symbol->name);
987 bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
988 bfd_mach_o_cpu_subtype msubtype,
989 enum bfd_architecture *type,
990 unsigned long *subtype)
992 *subtype = bfd_arch_unknown;
996 case BFD_MACH_O_CPU_TYPE_VAX:
997 *type = bfd_arch_vax;
999 case BFD_MACH_O_CPU_TYPE_MC680x0:
1000 *type = bfd_arch_m68k;
1002 case BFD_MACH_O_CPU_TYPE_I386:
1003 *type = bfd_arch_i386;
1004 *subtype = bfd_mach_i386_i386;
1006 case BFD_MACH_O_CPU_TYPE_X86_64:
1007 *type = bfd_arch_i386;
1008 *subtype = bfd_mach_x86_64;
1010 case BFD_MACH_O_CPU_TYPE_MIPS:
1011 *type = bfd_arch_mips;
1013 case BFD_MACH_O_CPU_TYPE_MC98000:
1014 *type = bfd_arch_m98k;
1016 case BFD_MACH_O_CPU_TYPE_HPPA:
1017 *type = bfd_arch_hppa;
1019 case BFD_MACH_O_CPU_TYPE_ARM:
1020 *type = bfd_arch_arm;
1023 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
1024 *subtype = bfd_mach_arm_4T;
1026 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
1027 *subtype = bfd_mach_arm_4T; /* Best fit ? */
1029 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
1030 *subtype = bfd_mach_arm_5TE;
1032 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
1033 *subtype = bfd_mach_arm_XScale;
1035 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
1036 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
1038 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
1043 case BFD_MACH_O_CPU_TYPE_SPARC:
1044 *type = bfd_arch_sparc;
1045 *subtype = bfd_mach_sparc;
1047 case BFD_MACH_O_CPU_TYPE_ALPHA:
1048 *type = bfd_arch_alpha;
1050 case BFD_MACH_O_CPU_TYPE_POWERPC:
1051 *type = bfd_arch_powerpc;
1052 *subtype = bfd_mach_ppc;
1054 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1055 *type = bfd_arch_powerpc;
1056 *subtype = bfd_mach_ppc64;
1058 case BFD_MACH_O_CPU_TYPE_ARM64:
1059 *type = bfd_arch_aarch64;
1060 *subtype = bfd_mach_aarch64;
1063 *type = bfd_arch_unknown;
1068 /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1069 number of bytes written or -1 in case of error. */
1072 bfd_mach_o_pad4 (bfd *abfd, unsigned int len)
1076 char pad[4] = {0,0,0,0};
1077 unsigned int padlen = 4 - (len % 4);
1079 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1088 /* Likewise, but for a command. */
1091 bfd_mach_o_pad_command (bfd *abfd, unsigned int len)
1093 unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4;
1095 if (len % align != 0)
1098 unsigned int padlen = align - (len % align);
1100 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1110 bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
1112 struct mach_o_header_external raw;
1115 size = mach_o_wide_p (header) ?
1116 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1118 bfd_h_put_32 (abfd, header->magic, raw.magic);
1119 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
1120 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
1121 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
1122 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
1123 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
1124 bfd_h_put_32 (abfd, header->flags, raw.flags);
1126 if (mach_o_wide_p (header))
1127 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1129 if (bfd_seek (abfd, 0, SEEK_SET) != 0
1130 || bfd_bwrite (&raw, size, abfd) != size)
1137 bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
1139 bfd_mach_o_thread_command *cmd = &command->command.thread;
1141 struct mach_o_thread_command_external raw;
1142 unsigned int offset;
1144 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1145 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1147 offset = BFD_MACH_O_LC_SIZE;
1148 for (i = 0; i < cmd->nflavours; i++)
1150 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
1151 BFD_ASSERT (cmd->flavours[i].offset ==
1152 (command->offset + offset + BFD_MACH_O_LC_SIZE));
1154 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
1155 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
1157 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
1158 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1161 offset += cmd->flavours[i].size + sizeof (raw);
1168 bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
1170 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1171 struct mach_o_str_command_external raw;
1172 unsigned int namelen;
1174 bfd_h_put_32 (abfd, cmd->name_offset, raw.str);
1176 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1177 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1180 namelen = strlen (cmd->name_str) + 1;
1181 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1184 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1191 bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1193 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1194 struct mach_o_dylib_command_external raw;
1195 unsigned int namelen;
1197 bfd_h_put_32 (abfd, cmd->name_offset, raw.name);
1198 bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp);
1199 bfd_h_put_32 (abfd, cmd->current_version, raw.current_version);
1200 bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version);
1202 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1203 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1206 namelen = strlen (cmd->name_str) + 1;
1207 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1210 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1217 bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
1219 bfd_mach_o_main_command *cmd = &command->command.main;
1220 struct mach_o_entry_point_command_external raw;
1222 bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff);
1223 bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize);
1225 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1226 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1233 bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
1235 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
1236 struct mach_o_dyld_info_command_external raw;
1238 bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off);
1239 bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size);
1240 bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off);
1241 bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size);
1242 bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off);
1243 bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size);
1244 bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off);
1245 bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size);
1246 bfd_h_put_32 (abfd, cmd->export_off, raw.export_off);
1247 bfd_h_put_32 (abfd, cmd->export_size, raw.export_size);
1249 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1250 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1253 if (cmd->rebase_size != 0)
1254 if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
1255 || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
1259 if (cmd->bind_size != 0)
1260 if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
1261 || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
1265 if (cmd->weak_bind_size != 0)
1266 if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
1267 || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
1268 cmd->weak_bind_size))
1271 if (cmd->lazy_bind_size != 0)
1272 if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
1273 || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
1274 cmd->lazy_bind_size))
1277 if (cmd->export_size != 0)
1278 if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
1279 || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
1287 bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
1290 return (asect->reloc_count + 1) * sizeof (arelent *);
1293 /* In addition to the need to byte-swap the symbol number, the bit positions
1294 of the fields in the relocation information vary per target endian-ness. */
1297 bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel,
1298 unsigned char *fields)
1300 unsigned char info = fields[3];
1302 if (bfd_big_endian (abfd))
1304 rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2];
1305 rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1306 rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0;
1307 rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT)
1308 & BFD_MACH_O_LENGTH_MASK;
1309 rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0;
1313 rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0];
1314 rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1315 rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0;
1316 rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT)
1317 & BFD_MACH_O_LENGTH_MASK;
1318 rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0;
1322 /* Set syms_ptr_ptr and addend of RES. */
1325 bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd,
1326 bfd_mach_o_reloc_info *reloc,
1327 arelent *res, asymbol **syms)
1329 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1333 /* Non-scattered relocation. */
1334 reloc->r_scattered = 0;
1337 num = reloc->r_value;
1339 if (reloc->r_extern)
1341 /* PR 17512: file: 8396-1185-0.004. */
1342 if (num >= (unsigned) bfd_mach_o_count_symbols (abfd))
1343 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1344 else if (syms == NULL)
1345 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1347 /* An external symbol number. */
1350 else if (num == 0x00ffffff || num == 0)
1352 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1353 is generic code, we don't know wether this is really a PAIR.
1354 This value is almost certainly not a valid section number, hence
1355 this specific case to avoid an assertion failure.
1356 Target specific swap_reloc_in routine should adjust that. */
1357 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1361 /* PR 17512: file: 006-2964-0.004. */
1362 if (num > mdata->nsects)
1365 /* A section number. */
1366 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1367 /* For a symbol defined in section S, the addend (stored in the
1368 binary) contains the address of the section. To comply with
1369 bfd convention, subtract the section address.
1370 Use the address from the header, so that the user can modify
1371 the vma of the section. */
1372 res->addend = -mdata->sections[num - 1]->addr;
1375 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1376 in the lower 16bits of the address value. So we have to find the
1377 'symbol' from the preceding reloc. We do this even though the
1378 section symbol is probably not needed here, because NULL symbol
1379 values cause an assert in generic BFD code. This must be done in
1380 the PPC swap_reloc_in routine. */
1381 res->sym_ptr_ptr = sym;
1386 /* Do most of the work for canonicalize_relocs on RAW: create internal
1387 representation RELOC and set most fields of RES using symbol table SYMS.
1388 Each target still has to set the howto of RES and possibly adjust other
1390 Previously the Mach-O hook point was simply swap_in, but some targets
1391 (like arm64) don't follow the generic rules (symnum is a value for the
1392 non-scattered relocation ADDEND). */
1395 bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd,
1396 struct mach_o_reloc_info_external *raw,
1397 bfd_mach_o_reloc_info *reloc,
1398 arelent *res, asymbol **syms)
1400 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1403 addr = bfd_get_32 (abfd, raw->r_address);
1404 res->sym_ptr_ptr = NULL;
1407 if (addr & BFD_MACH_O_SR_SCATTERED)
1410 bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum);
1412 /* Scattered relocation, can't be extern. */
1413 reloc->r_scattered = 1;
1414 reloc->r_extern = 0;
1416 /* Extract section and offset from r_value (symnum). */
1417 reloc->r_value = symnum;
1418 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1419 end of the data for the section (e.g. in a calculation of section
1420 data length). At present, the symbol will end up associated with
1421 the following section or, if it falls within alignment padding, as
1422 null - which will assert later. */
1423 for (j = 0; j < mdata->nsects; j++)
1425 bfd_mach_o_section *sect = mdata->sections[j];
1426 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1428 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1429 res->addend = symnum - sect->addr;
1434 /* Extract the info and address fields from r_address. */
1435 reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1436 reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1437 reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL;
1438 reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr);
1439 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
1443 /* Non-scattered relocation. */
1444 reloc->r_scattered = 0;
1445 reloc->r_address = addr;
1446 res->address = addr;
1448 /* The value and info fields have to be extracted dependent on target
1450 bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum);
1452 if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc,
1457 /* We have set up a reloc with all the information present, so the swapper
1458 can modify address, value and addend fields, if necessary, to convey
1459 information in the generic BFD reloc that is mach-o specific. */
1465 bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1466 unsigned long count,
1467 arelent *res, asymbol **syms)
1469 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1471 struct mach_o_reloc_info_external *native_relocs;
1472 bfd_size_type native_size;
1474 /* Allocate and read relocs. */
1475 native_size = count * BFD_MACH_O_RELENT_SIZE;
1477 /* PR 17512: file: 09477b57. */
1478 if (native_size < count)
1482 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
1483 if (native_relocs == NULL)
1486 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
1487 || bfd_bread (native_relocs, native_size, abfd) != native_size)
1490 for (i = 0; i < count; i++)
1492 if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i],
1493 &res[i], syms, res))
1496 free (native_relocs);
1499 free (native_relocs);
1504 bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1505 arelent **rels, asymbol **syms)
1507 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1511 if (asect->reloc_count == 0)
1514 /* No need to go further if we don't know how to read relocs. */
1515 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
1518 if (asect->relocation == NULL)
1520 if (asect->reloc_count * sizeof (arelent) < asect->reloc_count)
1522 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1526 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1527 asect->reloc_count, res, syms) < 0)
1532 asect->relocation = res;
1535 res = asect->relocation;
1536 for (i = 0; i < asect->reloc_count; i++)
1544 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1546 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1548 if (mdata->dysymtab == NULL)
1550 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
1551 * sizeof (arelent *);
1555 bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1556 struct bfd_symbol **syms)
1558 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1559 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1560 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1564 if (dysymtab == NULL)
1566 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1569 /* No need to go further if we don't know how to read relocs. */
1570 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
1573 if (mdata->dyn_reloc_cache == NULL)
1575 if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent)
1576 < (dysymtab->nextrel + dysymtab->nlocrel))
1579 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1580 * sizeof (arelent));
1584 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1585 dysymtab->nextrel, res, syms) < 0)
1591 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1593 res + dysymtab->nextrel, syms) < 0)
1599 mdata->dyn_reloc_cache = res;
1602 res = mdata->dyn_reloc_cache;
1603 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1609 /* In addition to the need to byte-swap the symbol number, the bit positions
1610 of the fields in the relocation information vary per target endian-ness. */
1613 bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
1614 bfd_mach_o_reloc_info *rel)
1616 unsigned char info = 0;
1618 BFD_ASSERT (rel->r_type <= 15);
1619 BFD_ASSERT (rel->r_length <= 3);
1621 if (bfd_big_endian (abfd))
1623 fields[0] = (rel->r_value >> 16) & 0xff;
1624 fields[1] = (rel->r_value >> 8) & 0xff;
1625 fields[2] = rel->r_value & 0xff;
1626 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1627 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1628 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1629 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1633 fields[2] = (rel->r_value >> 16) & 0xff;
1634 fields[1] = (rel->r_value >> 8) & 0xff;
1635 fields[0] = rel->r_value & 0xff;
1636 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1637 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1638 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1639 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1645 bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
1650 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1652 sec = section->bfdsection;
1653 if (sec->reloc_count == 0)
1656 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1659 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1662 /* Convert and write. */
1663 entries = section->bfdsection->orelocation;
1664 for (i = 0; i < section->nreloc; i++)
1666 arelent *rel = entries[i];
1667 struct mach_o_reloc_info_external raw;
1668 bfd_mach_o_reloc_info info, *pinfo = &info;
1670 /* Convert relocation to an intermediate representation. */
1671 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1674 /* Lower the relocation info. */
1675 if (pinfo->r_scattered)
1679 v = BFD_MACH_O_SR_SCATTERED
1680 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1681 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1682 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1683 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
1684 /* Note: scattered relocs have field in reverse order... */
1685 bfd_put_32 (abfd, v, raw.r_address);
1686 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1690 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1691 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
1695 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
1696 != BFD_MACH_O_RELENT_SIZE)
1703 bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
1705 struct mach_o_section_32_external raw;
1707 memcpy (raw.sectname, section->sectname, 16);
1708 memcpy (raw.segname, section->segname, 16);
1709 bfd_h_put_32 (abfd, section->addr, raw.addr);
1710 bfd_h_put_32 (abfd, section->size, raw.size);
1711 bfd_h_put_32 (abfd, section->offset, raw.offset);
1712 bfd_h_put_32 (abfd, section->align, raw.align);
1713 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1714 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1715 bfd_h_put_32 (abfd, section->flags, raw.flags);
1716 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1717 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1719 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
1720 != BFD_MACH_O_SECTION_SIZE)
1727 bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
1729 struct mach_o_section_64_external raw;
1731 memcpy (raw.sectname, section->sectname, 16);
1732 memcpy (raw.segname, section->segname, 16);
1733 bfd_h_put_64 (abfd, section->addr, raw.addr);
1734 bfd_h_put_64 (abfd, section->size, raw.size);
1735 bfd_h_put_32 (abfd, section->offset, raw.offset);
1736 bfd_h_put_32 (abfd, section->align, raw.align);
1737 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1738 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1739 bfd_h_put_32 (abfd, section->flags, raw.flags);
1740 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1741 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1742 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1744 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
1745 != BFD_MACH_O_SECTION_64_SIZE)
1752 bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1754 struct mach_o_segment_command_32_external raw;
1755 bfd_mach_o_segment_command *seg = &command->command.segment;
1756 bfd_mach_o_section *sec;
1758 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1760 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1761 if (!bfd_mach_o_write_relocs (abfd, sec))
1764 memcpy (raw.segname, seg->segname, 16);
1765 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1766 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1767 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1768 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1769 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1770 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1771 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1772 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1774 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1775 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1778 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1779 if (!bfd_mach_o_write_section_32 (abfd, sec))
1786 bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1788 struct mach_o_segment_command_64_external raw;
1789 bfd_mach_o_segment_command *seg = &command->command.segment;
1790 bfd_mach_o_section *sec;
1792 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1794 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1795 if (!bfd_mach_o_write_relocs (abfd, sec))
1798 memcpy (raw.segname, seg->segname, 16);
1799 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1800 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1801 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1802 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1803 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1804 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1805 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1806 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1808 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1809 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1812 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1813 if (!bfd_mach_o_write_section_64 (abfd, sec))
1820 bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
1822 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1824 unsigned int wide = bfd_mach_o_wide_p (abfd);
1825 struct bfd_strtab_hash *strtab;
1826 asymbol **symbols = bfd_get_outsymbols (abfd);
1829 /* Write the symbols first. */
1830 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1833 strtab = _bfd_stringtab_init ();
1838 /* Although we don't strictly need to do this, for compatibility with
1839 Darwin system tools, actually output an empty string for the index
1841 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1843 for (i = 0; i < sym->nsyms; i++)
1845 bfd_size_type str_index;
1846 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1848 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
1849 /* An index of 0 always means the empty string. */
1853 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
1855 if (str_index == (bfd_size_type) -1)
1861 struct mach_o_nlist_64_external raw;
1863 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1864 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1865 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1866 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1867 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1870 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1875 struct mach_o_nlist_external raw;
1877 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1878 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1879 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1880 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1881 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1884 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1888 sym->strsize = _bfd_stringtab_size (strtab);
1889 sym->stroff = mdata->filelen;
1890 mdata->filelen += sym->strsize;
1892 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
1895 if (!_bfd_stringtab_emit (abfd, strtab))
1898 /* Pad string table. */
1899 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
1902 mdata->filelen += padlen;
1903 sym->strsize += padlen;
1908 _bfd_stringtab_free (strtab);
1914 bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1916 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1917 struct mach_o_symtab_command_external raw;
1919 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1922 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1923 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1924 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1925 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1927 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1928 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1934 /* Count the number of indirect symbols in the image.
1935 Requires that the sections are in their final order. */
1938 bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
1941 unsigned int nisyms = 0;
1943 for (i = 0; i < mdata->nsects; ++i)
1945 bfd_mach_o_section *sec = mdata->sections[i];
1947 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1949 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1950 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1951 case BFD_MACH_O_S_SYMBOL_STUBS:
1952 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1961 /* Create the dysymtab. */
1964 bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
1966 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1969 We are not going to try and fill these in yet and, moreover, we are
1970 going to bail if they are already set. */
1971 if (cmd->nmodtab != 0
1973 || cmd->nextrefsyms != 0)
1975 _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet"
1976 " implemented for dysymtab commands."));
1982 if (bfd_get_symcount (abfd) > 0)
1984 asymbol **symbols = bfd_get_outsymbols (abfd);
1987 /* Count the number of each kind of symbol. */
1988 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1990 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1991 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
1995 cmd->iextdefsym = i;
1996 for (; i < bfd_get_symcount (abfd); ++i)
1998 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1999 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
2002 cmd->nextdefsym = i - cmd->nlocalsym;
2003 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
2004 cmd->nundefsym = bfd_get_symcount (abfd)
2011 cmd->iextdefsym = 0;
2012 cmd->nextdefsym = 0;
2017 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
2018 if (cmd->nindirectsyms > 0)
2023 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2024 cmd->indirectsymoff = mdata->filelen;
2025 mdata->filelen += cmd->nindirectsyms * 4;
2027 if (cmd->nindirectsyms * 4 < cmd->nindirectsyms)
2029 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
2030 if (cmd->indirect_syms == NULL)
2034 for (i = 0; i < mdata->nsects; ++i)
2036 bfd_mach_o_section *sec = mdata->sections[i];
2038 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2040 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2041 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2042 case BFD_MACH_O_S_SYMBOL_STUBS:
2045 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
2047 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2048 if (isyms == NULL || num == 0)
2050 /* Record the starting index in the reserved1 field. */
2052 for (j = 0; j < num; j++, n++)
2054 if (isyms[j] == NULL)
2055 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
2056 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
2057 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
2058 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
2059 | BFD_MACH_O_INDIRECT_SYM_ABS;
2061 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
2074 /* Write a dysymtab command.
2075 TODO: Possibly coalesce writes of smaller objects. */
2078 bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2080 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2082 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2084 if (cmd->nmodtab != 0)
2088 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2091 for (i = 0; i < cmd->nmodtab; i++)
2093 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2097 iinit = module->iinit & 0xffff;
2098 iinit |= ((module->iterm & 0xffff) << 16);
2100 ninit = module->ninit & 0xffff;
2101 ninit |= ((module->nterm & 0xffff) << 16);
2103 if (bfd_mach_o_wide_p (abfd))
2105 struct mach_o_dylib_module_64_external w;
2107 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2108 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2109 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2110 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2111 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2112 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2113 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2114 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2115 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2116 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2117 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2118 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2119 &w.objc_module_info_addr);
2120 bfd_h_put_32 (abfd, module->objc_module_info_size,
2121 &w.objc_module_info_size);
2123 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2128 struct mach_o_dylib_module_external n;
2130 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2131 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2132 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2133 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2134 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2135 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2136 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2137 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2138 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2139 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2140 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2141 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2142 &n.objc_module_info_addr);
2143 bfd_h_put_32 (abfd, module->objc_module_info_size,
2144 &n.objc_module_info_size);
2146 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2156 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2159 for (i = 0; i < cmd->ntoc; i++)
2161 struct mach_o_dylib_table_of_contents_external raw;
2162 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2164 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2165 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2167 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2172 if (cmd->nindirectsyms > 0)
2176 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2179 for (i = 0; i < cmd->nindirectsyms; ++i)
2181 unsigned char raw[4];
2183 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2184 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2189 if (cmd->nextrefsyms != 0)
2193 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2196 for (i = 0; i < cmd->nextrefsyms; i++)
2199 unsigned char raw[4];
2200 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2202 /* Fields isym and flags are written as bit-fields, thus we need
2203 a specific processing for endianness. */
2205 if (bfd_big_endian (abfd))
2207 v = ((ref->isym & 0xffffff) << 8);
2208 v |= ref->flags & 0xff;
2212 v = ref->isym & 0xffffff;
2213 v |= ((ref->flags & 0xff) << 24);
2216 bfd_h_put_32 (abfd, v, raw);
2217 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2223 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2227 struct mach_o_dysymtab_command_external raw;
2229 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2230 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2231 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2232 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2233 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2234 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2235 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2236 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2237 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2238 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2239 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2240 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2241 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2242 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2243 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2244 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2245 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2246 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2248 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2256 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
2258 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
2260 /* Just leave debug symbols where they are (pretend they are local, and
2261 then they will just be sorted on position). */
2262 if (s->n_type & BFD_MACH_O_N_STAB)
2265 /* Local (we should never see an undefined local AFAICT). */
2266 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
2269 /* Common symbols look like undefined externs. */
2270 if (mtyp == BFD_MACH_O_N_UNDF)
2273 /* A defined non-local, non-debug symbol. */
2278 bfd_mach_o_cf_symbols (const void *a, const void *b)
2280 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2281 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2282 unsigned int soa, sob;
2284 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2285 sob = bfd_mach_o_primary_symbol_sort_key (sb);
2292 /* If it's local or stab, just preserve the input order. */
2295 if (sa->symbol.udata.i < sb->symbol.udata.i)
2297 if (sa->symbol.udata.i > sb->symbol.udata.i)
2300 /* This is probably an error. */
2304 /* The second sort key is name. */
2305 return strcmp (sa->symbol.name, sb->symbol.name);
2308 /* Process the symbols.
2310 This should be OK for single-module files - but it is not likely to work
2311 for multi-module shared libraries.
2313 (a) If the application has not filled in the relevant mach-o fields, make
2316 (b) Order them, like this:
2319 ( ii) external defined
2321 (iii) external undefined/common
2328 bfd_mach_o_mangle_symbols (bfd *abfd)
2331 asymbol **symbols = bfd_get_outsymbols (abfd);
2333 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2336 for (i = 0; i < bfd_get_symcount (abfd); i++)
2338 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2340 /* We use this value, which is out-of-range as a symbol index, to signal
2341 that the mach-o-specific data are not filled in and need to be created
2342 from the bfd values. It is much preferable for the application to do
2343 this, since more meaningful diagnostics can be made that way. */
2345 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
2347 /* No symbol information has been set - therefore determine
2348 it from the bfd symbol flags/info. */
2349 if (s->symbol.section == bfd_abs_section_ptr)
2350 s->n_type = BFD_MACH_O_N_ABS;
2351 else if (s->symbol.section == bfd_und_section_ptr)
2353 s->n_type = BFD_MACH_O_N_UNDF;
2354 if (s->symbol.flags & BSF_WEAK)
2355 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
2356 /* mach-o automatically makes undefined symbols extern. */
2357 s->n_type |= BFD_MACH_O_N_EXT;
2358 s->symbol.flags |= BSF_GLOBAL;
2360 else if (s->symbol.section == bfd_com_section_ptr)
2362 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2363 s->symbol.flags |= BSF_GLOBAL;
2366 s->n_type = BFD_MACH_O_N_SECT;
2368 if (s->symbol.flags & BSF_GLOBAL)
2369 s->n_type |= BFD_MACH_O_N_EXT;
2372 /* Put the section index in, where required. */
2373 if ((s->symbol.section != bfd_abs_section_ptr
2374 && s->symbol.section != bfd_und_section_ptr
2375 && s->symbol.section != bfd_com_section_ptr)
2376 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2377 && s->symbol.name == NULL))
2378 s->n_sect = s->symbol.section->output_section->target_index;
2380 /* Number to preserve order for local and debug syms. */
2381 s->symbol.udata.i = i;
2384 /* Sort the symbols. */
2385 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2386 sizeof (asymbol *), bfd_mach_o_cf_symbols);
2388 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2390 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2391 s->symbol.udata.i = i; /* renumber. */
2397 /* We build a flat table of sections, which can be re-ordered if necessary.
2398 Fill in the section number and other mach-o-specific data. */
2401 bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2404 unsigned target_index;
2407 nsect = bfd_count_sections (abfd);
2409 /* Don't do it if it's already set - assume the application knows what it's
2411 if (mdata->nsects == nsect
2412 && (mdata->nsects == 0 || mdata->sections != NULL))
2415 /* We need to check that this can be done... */
2418 _bfd_error_handler (_("mach-o: there are too many sections (%u)"
2419 " maximum is 255,\n"), nsect);
2423 mdata->nsects = nsect;
2424 mdata->sections = bfd_alloc2 (abfd,
2425 mdata->nsects, sizeof (bfd_mach_o_section *));
2426 if (mdata->sections == NULL)
2429 /* Create Mach-O sections.
2430 Section type, attribute and align should have been set when the
2431 section was created - either read in or specified. */
2433 for (sec = abfd->sections; sec; sec = sec->next)
2435 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2436 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2438 mdata->sections[target_index] = msect;
2440 msect->addr = bfd_get_section_vma (abfd, sec);
2441 msect->size = bfd_get_section_size (sec);
2443 /* Use the largest alignment set, in case it was bumped after the
2444 section was created. */
2445 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2448 sec->target_index = ++target_index;
2455 bfd_mach_o_write_contents (bfd *abfd)
2457 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2458 bfd_mach_o_load_command *cmd;
2459 bfd_mach_o_symtab_command *symtab = NULL;
2460 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2461 bfd_mach_o_segment_command *linkedit = NULL;
2463 /* Make the commands, if not already present. */
2464 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2466 abfd->output_has_begun = TRUE;
2468 /* Write the header. */
2469 if (!bfd_mach_o_write_header (abfd, &mdata->header))
2472 /* First pass: allocate the linkedit segment. */
2473 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2476 case BFD_MACH_O_LC_SEGMENT_64:
2477 case BFD_MACH_O_LC_SEGMENT:
2478 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2479 linkedit = &cmd->command.segment;
2481 case BFD_MACH_O_LC_SYMTAB:
2482 symtab = &cmd->command.symtab;
2484 case BFD_MACH_O_LC_DYSYMTAB:
2485 dysymtab = &cmd->command.dysymtab;
2487 case BFD_MACH_O_LC_DYLD_INFO:
2489 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2491 if (di->rebase_size != 0)
2493 di->rebase_off = mdata->filelen;
2494 mdata->filelen += di->rebase_size;
2496 if (di->bind_size != 0)
2498 di->bind_off = mdata->filelen;
2499 mdata->filelen += di->bind_size;
2501 if (di->weak_bind_size != 0)
2503 di->weak_bind_off = mdata->filelen;
2504 mdata->filelen += di->weak_bind_size;
2506 if (di->lazy_bind_size != 0)
2508 di->lazy_bind_off = mdata->filelen;
2509 mdata->filelen += di->lazy_bind_size;
2511 if (di->export_size != 0)
2513 di->export_off = mdata->filelen;
2514 mdata->filelen += di->export_size;
2518 case BFD_MACH_O_LC_LOAD_DYLIB:
2519 case BFD_MACH_O_LC_LOAD_DYLINKER:
2520 case BFD_MACH_O_LC_MAIN:
2521 /* Nothing to do. */
2525 (_("unable to allocate data for load command %#x"),
2530 /* Specially handle symtab and dysymtab. */
2532 /* Pre-allocate the symbol table (but not the string table). The reason
2533 is that the dysymtab is after the symbol table but before the string
2534 table (required by the native strip tool). */
2537 unsigned int symlen;
2538 unsigned int wide = bfd_mach_o_wide_p (abfd);
2540 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2542 /* Align for symbols. */
2543 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2544 symtab->symoff = mdata->filelen;
2546 symtab->nsyms = bfd_get_symcount (abfd);
2547 mdata->filelen += symtab->nsyms * symlen;
2550 /* Build the dysymtab. */
2551 if (dysymtab != NULL)
2552 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2555 /* Write symtab and strtab. */
2557 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2560 /* Adjust linkedit size. */
2561 if (linkedit != NULL)
2563 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2565 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2566 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2567 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2569 linkedit->initprot = BFD_MACH_O_PROT_READ;
2570 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2571 | BFD_MACH_O_PROT_EXECUTE;
2574 /* Second pass: write commands. */
2575 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2577 struct mach_o_load_command_external raw;
2578 unsigned long typeflag;
2580 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
2582 bfd_h_put_32 (abfd, typeflag, raw.cmd);
2583 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
2585 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
2586 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
2591 case BFD_MACH_O_LC_SEGMENT:
2592 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
2595 case BFD_MACH_O_LC_SEGMENT_64:
2596 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
2599 case BFD_MACH_O_LC_SYMTAB:
2600 if (!bfd_mach_o_write_symtab (abfd, cmd))
2603 case BFD_MACH_O_LC_DYSYMTAB:
2604 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
2607 case BFD_MACH_O_LC_THREAD:
2608 case BFD_MACH_O_LC_UNIXTHREAD:
2609 if (!bfd_mach_o_write_thread (abfd, cmd))
2612 case BFD_MACH_O_LC_LOAD_DYLIB:
2613 if (!bfd_mach_o_write_dylib (abfd, cmd))
2616 case BFD_MACH_O_LC_LOAD_DYLINKER:
2617 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2620 case BFD_MACH_O_LC_MAIN:
2621 if (!bfd_mach_o_write_main (abfd, cmd))
2624 case BFD_MACH_O_LC_DYLD_INFO:
2625 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2630 (_("unable to write unknown load command %#x"),
2640 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
2641 bfd_mach_o_section *s)
2643 if (seg->sect_head == NULL)
2646 seg->sect_tail->next = s;
2650 /* Create section Mach-O flags from BFD flags. */
2653 bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2657 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2659 /* Create default flags. */
2660 bfd_flags = bfd_get_section_flags (abfd, sec);
2661 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2662 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2663 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2664 | BFD_MACH_O_S_REGULAR;
2665 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2666 s->flags = BFD_MACH_O_S_ZEROFILL;
2667 else if (bfd_flags & SEC_DEBUGGING)
2668 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2670 s->flags = BFD_MACH_O_S_REGULAR;
2674 bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2676 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2680 seg->fileoff = mdata->filelen;
2681 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2682 | BFD_MACH_O_PROT_EXECUTE;
2683 seg->maxprot = seg->initprot;
2685 /* Append sections to the segment.
2687 This is a little tedious, we have to honor the need to account zerofill
2688 sections after all the rest. This forces us to do the calculation of
2689 total vmsize in three passes so that any alignment increments are
2690 properly accounted. */
2691 for (i = 0; i < mdata->nsects; ++i)
2693 bfd_mach_o_section *s = mdata->sections[i];
2694 asection *sec = s->bfdsection;
2696 /* Although we account for zerofill section sizes in vm order, they are
2697 placed in the file in source sequence. */
2698 bfd_mach_o_append_section_to_segment (seg, s);
2701 /* Zerofill sections have zero file size & offset, the only content
2702 written to the file is the symbols. */
2703 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2704 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2705 == BFD_MACH_O_S_GB_ZEROFILL))
2708 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2709 sections, even those with zero size. */
2712 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2713 seg->vmsize += s->size;
2715 /* MH_OBJECT files have unaligned content. */
2718 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2719 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2721 seg->filesize += s->size;
2723 /* The system tools write even zero-sized sections with an offset
2724 field set to the current file position. */
2725 s->offset = mdata->filelen;
2728 sec->filepos = s->offset;
2729 mdata->filelen += s->size;
2732 /* Now pass through again, for zerofill, only now we just update the
2733 vmsize, and then for zerofill_GB. */
2734 for (j = 0; j < 2; j++)
2739 stype = BFD_MACH_O_S_ZEROFILL;
2741 stype = BFD_MACH_O_S_GB_ZEROFILL;
2743 for (i = 0; i < mdata->nsects; ++i)
2745 bfd_mach_o_section *s = mdata->sections[i];
2747 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2752 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2753 seg->vmsize += s->size;
2758 /* Allocate space for the relocations. */
2759 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2761 for (i = 0; i < mdata->nsects; ++i)
2763 bfd_mach_o_section *ms = mdata->sections[i];
2764 asection *sec = ms->bfdsection;
2766 ms->nreloc = sec->reloc_count;
2767 if (ms->nreloc == 0)
2769 /* Clear nreloc and reloff if there is no relocs. */
2773 sec->rel_filepos = mdata->filelen;
2774 ms->reloff = sec->rel_filepos;
2775 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2782 bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2784 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2786 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2788 bfd_mach_o_section *s;
2792 seg->fileoff = mdata->filelen;
2797 /* Append sections to the segment. We assume they are properly ordered
2798 by vma (but we check that). */
2800 for (i = 0; i < mdata->nsects; ++i)
2802 s = mdata->sections[i];
2804 /* Consider only sections for this segment. */
2805 if (strcmp (seg->segname, s->segname) != 0)
2808 bfd_mach_o_append_section_to_segment (seg, s);
2813 /* xgettext:c-format */
2814 (_("section address (%#" PRIx64 ") "
2815 "below start of segment (%#" PRIx64 ")"),
2816 (uint64_t) s->addr, (uint64_t) vma);
2820 vma = s->addr + s->size;
2823 /* Set segment file offset: make it page aligned. */
2824 vma = seg->sect_head->addr;
2825 seg->vmaddr = vma & ~pagemask;
2826 if ((mdata->filelen & pagemask) > (vma & pagemask))
2827 mdata->filelen += pagemask + 1;
2828 seg->fileoff = mdata->filelen & ~pagemask;
2829 mdata->filelen = seg->fileoff + (vma & pagemask);
2831 /* Set section file offset. */
2832 for (s = seg->sect_head; s != NULL; s = s->next)
2834 asection *sec = s->bfdsection;
2835 flagword flags = bfd_get_section_flags (abfd, sec);
2837 /* Adjust segment size. */
2838 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2839 seg->vmsize += s->size;
2841 /* File offset and length. */
2842 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2844 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2845 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2846 != BFD_MACH_O_S_GB_ZEROFILL))
2848 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2850 s->offset = mdata->filelen;
2851 s->bfdsection->filepos = s->offset;
2853 seg->filesize += s->size;
2854 mdata->filelen += s->size;
2859 s->bfdsection->filepos = 0;
2862 /* Set protection. */
2863 if (flags & SEC_LOAD)
2865 if (flags & SEC_CODE)
2866 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
2867 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
2868 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
2871 /* Relocs shouldn't appear in non-object files. */
2872 if (s->bfdsection->reloc_count != 0)
2877 if (seg->initprot != 0)
2878 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2879 | BFD_MACH_O_PROT_EXECUTE;
2883 /* Round segment size (and file size). */
2884 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
2885 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
2886 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
2891 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
2892 fields in header. */
2895 bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
2897 unsigned wide = mach_o_wide_p (&mdata->header);
2898 unsigned int hdrlen;
2900 bfd_mach_o_load_command *cmd;
2902 bfd_boolean ret = TRUE;
2904 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2905 align = wide ? 8 - 1 : 4 - 1;
2907 mdata->header.ncmds = 0;
2909 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
2911 mdata->header.ncmds++;
2912 cmd->offset = offset;
2916 case BFD_MACH_O_LC_SEGMENT_64:
2917 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2918 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
2920 case BFD_MACH_O_LC_SEGMENT:
2921 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2922 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
2924 case BFD_MACH_O_LC_SYMTAB:
2925 cmd->len = sizeof (struct mach_o_symtab_command_external)
2926 + BFD_MACH_O_LC_SIZE;
2928 case BFD_MACH_O_LC_DYSYMTAB:
2929 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2930 + BFD_MACH_O_LC_SIZE;
2932 case BFD_MACH_O_LC_LOAD_DYLIB:
2933 cmd->len = sizeof (struct mach_o_dylib_command_external)
2934 + BFD_MACH_O_LC_SIZE;
2935 cmd->command.dylib.name_offset = cmd->len;
2936 cmd->len += strlen (cmd->command.dylib.name_str);
2937 cmd->len = (cmd->len + align) & ~align;
2939 case BFD_MACH_O_LC_LOAD_DYLINKER:
2940 cmd->len = sizeof (struct mach_o_str_command_external)
2941 + BFD_MACH_O_LC_SIZE;
2942 cmd->command.dylinker.name_offset = cmd->len;
2943 cmd->len += strlen (cmd->command.dylinker.name_str);
2944 cmd->len = (cmd->len + align) & ~align;
2946 case BFD_MACH_O_LC_MAIN:
2947 cmd->len = sizeof (struct mach_o_entry_point_command_external)
2948 + BFD_MACH_O_LC_SIZE;
2950 case BFD_MACH_O_LC_DYLD_INFO:
2951 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
2952 + BFD_MACH_O_LC_SIZE;
2956 (_("unable to layout unknown load command %#x"),
2962 BFD_ASSERT (cmd->len % (align + 1) == 0);
2965 mdata->header.sizeofcmds = offset - hdrlen;
2966 mdata->filelen = offset;
2971 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
2975 bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
2976 bfd_mach_o_load_command *cmd,
2977 const char *segname, unsigned int nbr_sect)
2979 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2980 unsigned wide = mach_o_wide_p (&mdata->header);
2982 /* Init segment command. */
2983 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
2984 cmd->type_required = FALSE;
2986 strcpy (seg->segname, segname);
2987 seg->nsects = nbr_sect;
2997 seg->sect_head = NULL;
2998 seg->sect_tail = NULL;
3001 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
3002 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
3003 and copy functionality. */
3006 bfd_mach_o_build_commands (bfd *abfd)
3008 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3009 unsigned wide = mach_o_wide_p (&mdata->header);
3010 unsigned int nbr_segcmd = 0;
3011 bfd_mach_o_load_command *commands;
3012 unsigned int nbr_commands;
3013 int symtab_idx = -1;
3014 int dysymtab_idx = -1;
3018 /* Return now if already built. */
3019 if (mdata->header.ncmds != 0)
3022 /* Fill in the file type, if not already set. */
3023 if (mdata->header.filetype == 0)
3025 if (abfd->flags & EXEC_P)
3026 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
3027 else if (abfd->flags & DYNAMIC)
3028 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
3030 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
3033 /* If hasn't already been done, flatten sections list, and sort
3034 if/when required. Must be done before the symbol table is adjusted,
3035 since that depends on properly numbered sections. */
3036 if (mdata->nsects == 0 || mdata->sections == NULL)
3037 if (! bfd_mach_o_mangle_sections (abfd, mdata))
3040 /* Order the symbol table, fill-in/check mach-o specific fields and
3041 partition out any indirect symbols. */
3042 if (!bfd_mach_o_mangle_symbols (abfd))
3045 /* Segment commands. */
3046 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3048 /* Only one segment for all the sections. But the segment is
3049 optional if there is no sections. */
3050 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
3054 bfd_mach_o_section *prev_sect = NULL;
3056 /* One pagezero segment and one linkedit segment. */
3059 /* Create one segment for associated segment name in sections.
3060 Assume that sections with the same segment name are consecutive. */
3061 for (i = 0; i < mdata->nsects; i++)
3063 bfd_mach_o_section *this_sect = mdata->sections[i];
3065 if (prev_sect == NULL
3066 || strcmp (prev_sect->segname, this_sect->segname) != 0)
3069 prev_sect = this_sect;
3074 nbr_commands = nbr_segcmd;
3076 /* One command for the symbol table (only if there are symbols. */
3077 if (bfd_get_symcount (abfd) > 0)
3078 symtab_idx = nbr_commands++;
3081 This is a rather crude test for whether we should build a dysymtab. */
3082 if (bfd_mach_o_should_emit_dysymtab ()
3083 && bfd_get_symcount (abfd))
3085 /* If there should be a case where a dysymtab could be emitted without
3086 a symtab (seems improbable), this would need amending. */
3087 dysymtab_idx = nbr_commands++;
3090 /* Add an entry point command. */
3091 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3092 && bfd_get_start_address (abfd) != 0)
3093 main_idx = nbr_commands++;
3095 /* Well, we must have a header, at least. */
3096 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3098 /* A bit unusual, but no content is valid;
3099 as -n empty.s -o empty.o */
3100 if (nbr_commands == 0)
3102 /* Layout commands (well none...) and set headers command fields. */
3103 return bfd_mach_o_layout_commands (mdata);
3106 /* Create commands for segments (and symtabs), prepend them. */
3107 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3108 if (commands == NULL)
3110 for (i = 0; i < nbr_commands - 1; i++)
3111 commands[i].next = &commands[i + 1];
3112 commands[nbr_commands - 1].next = mdata->first_command;
3113 if (mdata->first_command == NULL)
3114 mdata->last_command = &commands[nbr_commands - 1];
3115 mdata->first_command = &commands[0];
3117 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3119 /* For object file, there is only one segment. */
3120 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3122 else if (nbr_segcmd != 0)
3124 bfd_mach_o_load_command *cmd;
3126 BFD_ASSERT (nbr_segcmd >= 2);
3130 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3132 /* Segments from sections. */
3134 for (i = 0; i < mdata->nsects;)
3136 const char *segname = mdata->sections[i]->segname;
3137 unsigned int nbr_sect = 1;
3139 /* Count number of sections for this segment. */
3140 for (i++; i < mdata->nsects; i++)
3141 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3146 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3151 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
3154 if (symtab_idx >= 0)
3156 /* Init symtab command. */
3157 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
3159 cmd->type = BFD_MACH_O_LC_SYMTAB;
3160 cmd->type_required = FALSE;
3163 /* If required, setup symtab command, see comment above about the quality
3165 if (dysymtab_idx >= 0)
3167 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
3169 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
3170 cmd->type_required = FALSE;
3173 /* Create the main command. */
3176 bfd_mach_o_load_command *cmd = &commands[main_idx];
3178 cmd->type = BFD_MACH_O_LC_MAIN;
3179 cmd->type_required = TRUE;
3181 cmd->command.main.entryoff = 0;
3182 cmd->command.main.stacksize = 0;
3185 /* Layout commands. */
3186 if (! bfd_mach_o_layout_commands (mdata))
3189 /* So, now we have sized the commands and the filelen set to that.
3190 Now we can build the segment command and set the section file offsets. */
3191 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3193 for (i = 0; i < nbr_segcmd; i++)
3194 if (!bfd_mach_o_build_obj_seg_command
3195 (abfd, &commands[i].command.segment))
3202 /* Skip pagezero and linkedit segments. */
3203 for (i = 1; i < nbr_segcmd - 1; i++)
3205 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3207 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3210 if (seg->vmaddr + seg->vmsize > maxvma)
3211 maxvma = seg->vmaddr + seg->vmsize;
3214 /* Set the size of __PAGEZERO. */
3215 commands[0].command.segment.vmsize =
3216 commands[1].command.segment.vmaddr;
3218 /* Set the vma and fileoff of __LINKEDIT. */
3219 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3220 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3222 /* Set entry point (once segments have been laid out). */
3224 commands[main_idx].command.main.entryoff =
3225 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3231 /* Set the contents of a section. */
3234 bfd_mach_o_set_section_contents (bfd *abfd,
3236 const void * location,
3238 bfd_size_type count)
3242 /* Trying to write the first section contents will trigger the creation of
3243 the load commands if they are not already present. */
3244 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
3250 pos = section->filepos + offset;
3251 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3252 || bfd_bwrite (location, count, abfd) != count)
3259 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
3260 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3265 /* Make an empty symbol. This is required only because
3266 bfd_make_section_anyway wants to create a symbol for the section. */
3269 bfd_mach_o_make_empty_symbol (bfd *abfd)
3271 asymbol *new_symbol;
3273 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3274 if (new_symbol == NULL)
3276 new_symbol->the_bfd = abfd;
3277 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
3282 bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header)
3284 struct mach_o_header_external raw;
3286 bfd_vma (*get32) (const void *) = NULL;
3288 /* Just read the magic number. */
3289 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
3290 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
3293 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3295 header->byteorder = BFD_ENDIAN_BIG;
3296 header->magic = BFD_MACH_O_MH_MAGIC;
3297 header->version = 1;
3300 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3302 header->byteorder = BFD_ENDIAN_LITTLE;
3303 header->magic = BFD_MACH_O_MH_MAGIC;
3304 header->version = 1;
3307 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3309 header->byteorder = BFD_ENDIAN_BIG;
3310 header->magic = BFD_MACH_O_MH_MAGIC_64;
3311 header->version = 2;
3314 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3316 header->byteorder = BFD_ENDIAN_LITTLE;
3317 header->magic = BFD_MACH_O_MH_MAGIC_64;
3318 header->version = 2;
3323 header->byteorder = BFD_ENDIAN_UNKNOWN;
3327 /* Once the size of the header is known, read the full header. */
3328 size = mach_o_wide_p (header) ?
3329 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3331 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
3332 || bfd_bread (&raw, size, abfd) != size)
3335 header->cputype = (*get32) (raw.cputype);
3336 header->cpusubtype = (*get32) (raw.cpusubtype);
3337 header->filetype = (*get32) (raw.filetype);
3338 header->ncmds = (*get32) (raw.ncmds);
3339 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3340 header->flags = (*get32) (raw.flags);
3342 if (mach_o_wide_p (header))
3343 header->reserved = (*get32) (raw.reserved);
3345 header->reserved = 0;
3351 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3353 bfd_mach_o_section *s;
3354 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
3356 s = bfd_mach_o_get_mach_o_section (sec);
3360 static const mach_o_section_name_xlat * xlat;
3362 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3365 sec->used_by_bfd = s;
3366 s->bfdsection = sec;
3368 /* Create the Darwin seg/sect name pair from the bfd name.
3369 If this is a canonical name for which a specific paiting exists
3370 there will also be defined flags, type, attribute and alignment
3372 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3375 s->flags = xlat->macho_sectype | xlat->macho_secattr;
3376 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
3378 (void) bfd_set_section_alignment (abfd, sec, s->align);
3379 bfd_flags = bfd_get_section_flags (abfd, sec);
3380 if (bfd_flags == SEC_NO_FLAGS)
3381 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3384 /* Create default flags. */
3385 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
3388 return _bfd_generic_new_section_hook (abfd, sec);
3392 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3396 bfd_mach_o_section *section;
3398 flags = bfd_get_section_flags (abfd, sec);
3399 section = bfd_mach_o_get_mach_o_section (sec);
3401 /* TODO: see if we should use the xlat system for doing this by
3402 preference and fall back to this for unknown sections. */
3404 if (flags == SEC_NO_FLAGS)
3406 /* Try to guess flags. */
3407 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3408 flags = SEC_DEBUGGING;
3412 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3413 != BFD_MACH_O_S_ZEROFILL)
3416 if (prot & BFD_MACH_O_PROT_EXECUTE)
3418 if (prot & BFD_MACH_O_PROT_WRITE)
3420 else if (prot & BFD_MACH_O_PROT_READ)
3421 flags |= SEC_READONLY;
3427 if ((flags & SEC_DEBUGGING) == 0)
3431 if (section->offset != 0)
3432 flags |= SEC_HAS_CONTENTS;
3433 if (section->nreloc != 0)
3436 bfd_set_section_flags (abfd, sec, flags);
3438 sec->vma = section->addr;
3439 sec->lma = section->addr;
3440 sec->size = section->size;
3441 sec->filepos = section->offset;
3442 sec->alignment_power = section->align;
3443 sec->segment_mark = 0;
3444 sec->reloc_count = section->nreloc;
3445 sec->rel_filepos = section->reloff;
3449 bfd_mach_o_make_bfd_section (bfd *abfd,
3450 const unsigned char *segname,
3451 const unsigned char *sectname)
3456 bfd_mach_o_convert_section_name_to_bfd
3457 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3461 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3465 bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot)
3467 struct mach_o_section_32_external raw;
3469 bfd_mach_o_section *section;
3471 if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3472 != BFD_MACH_O_SECTION_SIZE)
3475 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3479 section = bfd_mach_o_get_mach_o_section (sec);
3480 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3481 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3482 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3483 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3484 section->addr = bfd_h_get_32 (abfd, raw.addr);
3485 section->size = bfd_h_get_32 (abfd, raw.size);
3486 section->offset = bfd_h_get_32 (abfd, raw.offset);
3487 section->align = bfd_h_get_32 (abfd, raw.align);
3488 /* PR 17512: file: 0017eb76. */
3489 if (section->align > 64)
3492 (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, "
3493 "using 32 instead"), section->align);
3494 section->align = 32;
3496 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3497 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3498 section->flags = bfd_h_get_32 (abfd, raw.flags);
3499 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3500 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3501 section->reserved3 = 0;
3503 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3509 bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot)
3511 struct mach_o_section_64_external raw;
3513 bfd_mach_o_section *section;
3515 if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3516 != BFD_MACH_O_SECTION_64_SIZE)
3519 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3523 section = bfd_mach_o_get_mach_o_section (sec);
3524 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3525 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3526 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3527 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3528 section->addr = bfd_h_get_64 (abfd, raw.addr);
3529 section->size = bfd_h_get_64 (abfd, raw.size);
3530 section->offset = bfd_h_get_32 (abfd, raw.offset);
3531 section->align = bfd_h_get_32 (abfd, raw.align);
3532 if (section->align > 64)
3535 (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, "
3536 "using 32 instead"), section->align);
3537 section->align = 32;
3539 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3540 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3541 section->flags = bfd_h_get_32 (abfd, raw.flags);
3542 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3543 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3544 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3546 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3552 bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide)
3555 return bfd_mach_o_read_section_64 (abfd, prot);
3557 return bfd_mach_o_read_section_32 (abfd, prot);
3561 bfd_mach_o_read_symtab_symbol (bfd *abfd,
3562 bfd_mach_o_symtab_command *sym,
3563 bfd_mach_o_asymbol *s,
3566 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3567 unsigned int wide = mach_o_wide_p (&mdata->header);
3568 unsigned int symwidth =
3569 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
3570 unsigned int symoff = sym->symoff + (i * symwidth);
3571 struct mach_o_nlist_64_external raw;
3572 unsigned char type = -1;
3573 unsigned char section = -1;
3575 symvalue value = -1;
3576 unsigned long stroff = -1;
3577 unsigned int symtype = -1;
3579 BFD_ASSERT (sym->strtab != NULL);
3581 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
3582 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3585 /* xgettext:c-format */
3586 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"),
3591 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3592 type = bfd_h_get_8 (abfd, raw.n_type);
3593 symtype = type & BFD_MACH_O_N_TYPE;
3594 section = bfd_h_get_8 (abfd, raw.n_sect);
3595 desc = bfd_h_get_16 (abfd, raw.n_desc);
3597 value = bfd_h_get_64 (abfd, raw.n_value);
3599 value = bfd_h_get_32 (abfd, raw.n_value);
3601 if (stroff >= sym->strsize)
3604 /* xgettext:c-format */
3605 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"),
3611 s->symbol.the_bfd = abfd;
3612 s->symbol.name = sym->strtab + stroff;
3613 s->symbol.value = value;
3614 s->symbol.flags = 0x0;
3615 s->symbol.udata.i = i;
3617 s->n_sect = section;
3620 if (type & BFD_MACH_O_N_STAB)
3622 s->symbol.flags |= BSF_DEBUGGING;
3623 s->symbol.section = bfd_und_section_ptr;
3635 if ((section > 0) && (section <= mdata->nsects))
3637 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3639 s->symbol.value - mdata->sections[section - 1]->addr;
3646 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
3647 s->symbol.flags |= BSF_GLOBAL;
3649 s->symbol.flags |= BSF_LOCAL;
3653 case BFD_MACH_O_N_UNDF:
3654 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3655 && s->symbol.value != 0)
3657 /* A common symbol. */
3658 s->symbol.section = bfd_com_section_ptr;
3659 s->symbol.flags = BSF_NO_FLAGS;
3663 s->symbol.section = bfd_und_section_ptr;
3664 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3665 s->symbol.flags |= BSF_WEAK;
3668 case BFD_MACH_O_N_PBUD:
3669 s->symbol.section = bfd_und_section_ptr;
3671 case BFD_MACH_O_N_ABS:
3672 s->symbol.section = bfd_abs_section_ptr;
3674 case BFD_MACH_O_N_SECT:
3675 if ((section > 0) && (section <= mdata->nsects))
3677 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3679 s->symbol.value - mdata->sections[section - 1]->addr;
3683 /* Mach-O uses 0 to mean "no section"; not an error. */
3687 /* xgettext:c-format */
3688 (_("bfd_mach_o_read_symtab_symbol: "
3689 "symbol \"%s\" specified invalid section %d (max %lu): "
3690 "setting to undefined"),
3691 s->symbol.name, section, mdata->nsects);
3693 s->symbol.section = bfd_und_section_ptr;
3696 case BFD_MACH_O_N_INDR:
3697 /* FIXME: we don't follow the BFD convention as this indirect symbol
3698 won't be followed by the referenced one. This looks harmless
3699 unless we start using the linker. */
3700 s->symbol.flags |= BSF_INDIRECT;
3701 s->symbol.section = bfd_ind_section_ptr;
3702 s->symbol.value = 0;
3706 /* xgettext:c-format */
3707 (_("bfd_mach_o_read_symtab_symbol: "
3708 "symbol \"%s\" specified invalid type field 0x%x: "
3709 "setting to undefined"), s->symbol.name, symtype);
3710 s->symbol.section = bfd_und_section_ptr;
3719 bfd_mach_o_read_symtab_strtab (bfd *abfd)
3721 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3722 bfd_mach_o_symtab_command *sym = mdata->symtab;
3724 /* Fail if there is no symtab. */
3728 /* Success if already loaded. */
3732 if (abfd->flags & BFD_IN_MEMORY)
3734 struct bfd_in_memory *b;
3736 b = (struct bfd_in_memory *) abfd->iostream;
3738 if ((sym->stroff + sym->strsize) > b->size)
3740 bfd_set_error (bfd_error_file_truncated);
3743 sym->strtab = (char *) b->buffer + sym->stroff;
3747 /* See PR 21840 for a reproducer. */
3748 if ((sym->strsize + 1) == 0)
3750 sym->strtab = bfd_alloc (abfd, sym->strsize + 1);
3751 if (sym->strtab == NULL)
3754 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
3755 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3757 /* PR 17512: file: 10888-1609-0.004. */
3758 bfd_release (abfd, sym->strtab);
3760 bfd_set_error (bfd_error_file_truncated);
3763 /* Zero terminate the string table. */
3764 sym->strtab[sym->strsize] = 0;
3771 bfd_mach_o_read_symtab_symbols (bfd *abfd)
3773 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3774 bfd_mach_o_symtab_command *sym = mdata->symtab;
3777 if (sym == NULL || sym->symbols)
3778 /* Return now if there are no symbols or if already loaded. */
3781 sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol));
3782 if (sym->symbols == NULL)
3784 _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: "
3785 "unable to allocate memory for symbols"));
3790 if (!bfd_mach_o_read_symtab_strtab (abfd))
3793 for (i = 0; i < sym->nsyms; i++)
3794 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3800 bfd_release (abfd, sym->symbols);
3801 sym->symbols = NULL;
3807 bfd_mach_o_i386_flavour_string (unsigned int flavour)
3809 switch ((int) flavour)
3811 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3812 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3813 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3814 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3815 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3816 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3817 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3818 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3819 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3820 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3821 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3822 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
3823 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3824 default: return "UNKNOWN";
3829 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3831 switch ((int) flavour)
3833 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3834 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3835 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3836 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3837 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3838 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3839 default: return "UNKNOWN";
3844 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3846 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
3847 struct mach_o_str_command_external raw;
3848 unsigned int nameoff;
3849 unsigned int namelen;
3851 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3854 nameoff = bfd_h_get_32 (abfd, raw.str);
3856 cmd->name_offset = nameoff;
3857 namelen = command->len - nameoff;
3858 nameoff += command->offset;
3859 cmd->name_str = bfd_alloc (abfd, namelen);
3860 if (cmd->name_str == NULL)
3862 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3863 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3869 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3871 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3872 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
3873 struct mach_o_dylib_command_external raw;
3874 unsigned int nameoff;
3875 unsigned int namelen;
3877 switch (command->type)
3879 case BFD_MACH_O_LC_LOAD_DYLIB:
3880 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3881 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3882 case BFD_MACH_O_LC_ID_DYLIB:
3883 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3884 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3891 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3894 nameoff = bfd_h_get_32 (abfd, raw.name);
3895 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3896 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3897 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3899 cmd->name_offset = command->offset + nameoff;
3900 namelen = command->len - nameoff;
3901 cmd->name_str = bfd_alloc (abfd, namelen);
3902 if (cmd->name_str == NULL)
3904 if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0
3905 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3911 bfd_mach_o_read_prebound_dylib (bfd *abfd,
3912 bfd_mach_o_load_command *command)
3914 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
3915 struct mach_o_prebound_dylib_command_external raw;
3916 unsigned int nameoff;
3917 unsigned int modoff;
3918 unsigned int str_len;
3921 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3924 nameoff = bfd_h_get_32 (abfd, raw.name);
3925 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
3926 if (nameoff > command->len || modoff > command->len)
3929 str_len = command->len - sizeof (raw);
3930 str = bfd_alloc (abfd, str_len);
3933 if (bfd_bread (str, str_len, abfd) != str_len)
3936 cmd->name_offset = command->offset + nameoff;
3937 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
3938 cmd->linked_modules_offset = command->offset + modoff;
3940 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3941 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3946 bfd_mach_o_read_prebind_cksum (bfd *abfd,
3947 bfd_mach_o_load_command *command)
3949 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
3950 struct mach_o_prebind_cksum_command_external raw;
3952 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3955 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
3960 bfd_mach_o_read_twolevel_hints (bfd *abfd,
3961 bfd_mach_o_load_command *command)
3963 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
3964 struct mach_o_twolevel_hints_command_external raw;
3966 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3969 cmd->offset = bfd_get_32 (abfd, raw.offset);
3970 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
3975 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3977 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3978 struct mach_o_fvmlib_command_external raw;
3979 unsigned int nameoff;
3980 unsigned int namelen;
3982 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3985 nameoff = bfd_h_get_32 (abfd, raw.name);
3986 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3987 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3989 fvm->name_offset = command->offset + nameoff;
3990 namelen = command->len - nameoff;
3991 fvm->name_str = bfd_alloc (abfd, namelen);
3992 if (fvm->name_str == NULL)
3994 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3995 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
4001 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
4003 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4004 bfd_mach_o_thread_command *cmd = &command->command.thread;
4005 unsigned int offset;
4006 unsigned int nflavours;
4009 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
4010 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
4012 /* Count the number of threads. */
4015 while (offset != command->len)
4017 struct mach_o_thread_command_external raw;
4019 if (offset >= command->len)
4022 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
4023 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4026 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
4030 /* Allocate threads. */
4031 cmd->flavours = bfd_alloc2
4032 (abfd, nflavours, sizeof (bfd_mach_o_thread_flavour));
4033 if (cmd->flavours == NULL)
4035 cmd->nflavours = nflavours;
4039 while (offset != command->len)
4041 struct mach_o_thread_command_external raw;
4043 if (offset >= command->len)
4046 if (nflavours >= cmd->nflavours)
4049 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
4050 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4053 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
4054 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
4055 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
4056 offset += cmd->flavours[nflavours].size + sizeof (raw);
4060 for (i = 0; i < nflavours; i++)
4063 unsigned int snamelen;
4065 const char *flavourstr;
4066 const char *prefix = "LC_THREAD";
4069 switch (mdata->header.cputype)
4071 case BFD_MACH_O_CPU_TYPE_POWERPC:
4072 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
4074 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
4076 case BFD_MACH_O_CPU_TYPE_I386:
4077 case BFD_MACH_O_CPU_TYPE_X86_64:
4079 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
4082 flavourstr = "UNKNOWN_ARCHITECTURE";
4086 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
4087 sname = bfd_alloc (abfd, snamelen);
4093 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4094 if (bfd_get_section_by_name (abfd, sname) == NULL)
4099 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
4103 bfdsec->size = cmd->flavours[i].size;
4104 bfdsec->filepos = cmd->flavours[i].offset;
4105 bfdsec->alignment_power = 0x0;
4107 cmd->section = bfdsec;
4114 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
4116 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
4117 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4119 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4122 struct mach_o_dysymtab_command_external raw;
4124 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4127 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4128 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4129 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4130 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4131 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4132 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4133 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4134 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4135 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4136 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4137 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4138 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4139 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4140 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4141 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4142 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4143 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4144 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4147 if (cmd->nmodtab != 0)
4150 int wide = bfd_mach_o_wide_p (abfd);
4151 unsigned int module_len = wide ? 56 : 52;
4154 bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module));
4155 if (cmd->dylib_module == NULL)
4158 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
4161 for (i = 0; i < cmd->nmodtab; i++)
4163 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4165 unsigned char buf[56];
4167 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4170 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4171 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4172 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4173 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4174 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4175 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4176 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4177 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4178 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4179 v = bfd_h_get_32 (abfd, buf +36);
4180 module->iinit = v & 0xffff;
4181 module->iterm = (v >> 16) & 0xffff;
4182 v = bfd_h_get_32 (abfd, buf + 40);
4183 module->ninit = v & 0xffff;
4184 module->nterm = (v >> 16) & 0xffff;
4187 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4188 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4192 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4193 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4202 cmd->dylib_toc = bfd_alloc2
4203 (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content));
4204 if (cmd->dylib_toc == NULL)
4207 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
4210 for (i = 0; i < cmd->ntoc; i++)
4212 struct mach_o_dylib_table_of_contents_external raw;
4213 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4215 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4218 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4219 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4223 if (cmd->nindirectsyms != 0)
4227 cmd->indirect_syms = bfd_alloc2
4228 (abfd, cmd->nindirectsyms, sizeof (unsigned int));
4229 if (cmd->indirect_syms == NULL)
4232 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
4235 for (i = 0; i < cmd->nindirectsyms; i++)
4237 unsigned char raw[4];
4238 unsigned int *is = &cmd->indirect_syms[i];
4240 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4243 *is = bfd_h_get_32 (abfd, raw);
4247 if (cmd->nextrefsyms != 0)
4252 cmd->ext_refs = bfd_alloc2
4253 (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference));
4254 if (cmd->ext_refs == NULL)
4257 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
4260 for (i = 0; i < cmd->nextrefsyms; i++)
4262 unsigned char raw[4];
4263 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4265 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4268 /* Fields isym and flags are written as bit-fields, thus we need
4269 a specific processing for endianness. */
4270 v = bfd_h_get_32 (abfd, raw);
4271 if (bfd_big_endian (abfd))
4273 ref->isym = (v >> 8) & 0xffffff;
4274 ref->flags = v & 0xff;
4278 ref->isym = v & 0xffffff;
4279 ref->flags = (v >> 24) & 0xff;
4284 if (mdata->dysymtab)
4286 mdata->dysymtab = cmd;
4292 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
4294 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4295 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4296 struct mach_o_symtab_command_external raw;
4298 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4300 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4303 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4304 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4305 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4306 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
4307 symtab->symbols = NULL;
4308 symtab->strtab = NULL;
4310 if (symtab->nsyms != 0)
4311 abfd->flags |= HAS_SYMS;
4315 mdata->symtab = symtab;
4320 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
4322 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
4324 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4326 if (bfd_bread (cmd->uuid, 16, abfd) != 16)
4333 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
4335 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
4336 struct mach_o_linkedit_data_command_external raw;
4338 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4341 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4342 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
4347 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
4349 bfd_mach_o_str_command *cmd = &command->command.str;
4350 struct mach_o_str_command_external raw;
4353 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4356 off = bfd_get_32 (abfd, raw.str);
4357 cmd->stroff = command->offset + off;
4358 cmd->str_len = command->len - off;
4359 cmd->str = bfd_alloc (abfd, cmd->str_len);
4360 if (cmd->str == NULL)
4362 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
4363 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
4368 static unsigned char *
4369 bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4373 buf = bfd_alloc (abfd, size);
4376 if (bfd_seek (abfd, off, SEEK_SET) != 0
4377 || bfd_bread (buf, size, abfd) != size)
4383 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4385 /* Read rebase content. */
4386 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4388 cmd->rebase_content =
4389 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4390 if (cmd->rebase_content == NULL)
4394 /* Read bind content. */
4395 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4398 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4399 if (cmd->bind_content == NULL)
4403 /* Read weak bind content. */
4404 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4406 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4407 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4408 if (cmd->weak_bind_content == NULL)
4412 /* Read lazy bind content. */
4413 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4415 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4416 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4417 if (cmd->lazy_bind_content == NULL)
4421 /* Read export content. */
4422 if (cmd->export_content == NULL && cmd->export_size != 0)
4424 cmd->export_content = bfd_mach_o_alloc_and_read
4425 (abfd, cmd->export_off, cmd->export_size);
4426 if (cmd->export_content == NULL)
4434 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
4436 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
4437 struct mach_o_dyld_info_command_external raw;
4439 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4442 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4443 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
4444 cmd->rebase_content = NULL;
4445 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4446 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
4447 cmd->bind_content = NULL;
4448 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4449 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
4450 cmd->weak_bind_content = NULL;
4451 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4452 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
4453 cmd->lazy_bind_content = NULL;
4454 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4455 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
4456 cmd->export_content = NULL;
4461 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4463 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4464 struct mach_o_version_min_command_external raw;
4467 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4470 ver = bfd_get_32 (abfd, raw.version);
4471 cmd->rel = ver >> 16;
4472 cmd->maj = ver >> 8;
4474 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4479 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4481 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4482 struct mach_o_encryption_info_command_external raw;
4484 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4487 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4488 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4489 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4494 bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command)
4496 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4497 struct mach_o_encryption_info_64_command_external raw;
4499 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4502 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4503 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4504 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4509 bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4511 bfd_mach_o_main_command *cmd = &command->command.main;
4512 struct mach_o_entry_point_command_external raw;
4514 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4517 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4518 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4523 bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4525 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4526 struct mach_o_source_version_command_external raw;
4529 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4532 ver = bfd_get_64 (abfd, raw.version);
4533 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4534 generates warnings) in case of the host doesn't support 64 bit
4536 cmd->e = ver & 0x3ff;
4538 cmd->d = ver & 0x3ff;
4540 cmd->c = ver & 0x3ff;
4542 cmd->b = ver & 0x3ff;
4544 cmd->a = ver & 0xffffff;
4549 bfd_mach_o_read_segment (bfd *abfd,
4550 bfd_mach_o_load_command *command,
4553 bfd_mach_o_segment_command *seg = &command->command.segment;
4558 struct mach_o_segment_command_64_external raw;
4560 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
4562 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4565 memcpy (seg->segname, raw.segname, 16);
4566 seg->segname[16] = '\0';
4568 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4569 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4570 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4571 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4572 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4573 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4574 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4575 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4579 struct mach_o_segment_command_32_external raw;
4581 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4583 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4586 memcpy (seg->segname, raw.segname, 16);
4587 seg->segname[16] = '\0';
4589 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4590 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4591 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4592 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4593 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4594 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4595 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4596 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4598 seg->sect_head = NULL;
4599 seg->sect_tail = NULL;
4601 for (i = 0; i < seg->nsects; i++)
4605 sec = bfd_mach_o_read_section (abfd, seg->initprot, wide);
4609 bfd_mach_o_append_section_to_segment
4610 (seg, bfd_mach_o_get_mach_o_section (sec));
4617 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
4619 return bfd_mach_o_read_segment (abfd, command, 0);
4623 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
4625 return bfd_mach_o_read_segment (abfd, command, 1);
4629 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
4631 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4632 struct mach_o_load_command_external raw;
4635 /* Read command type and length. */
4636 if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0
4637 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
4640 cmd = bfd_h_get_32 (abfd, raw.cmd);
4641 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4642 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4643 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
4645 switch (command->type)
4647 case BFD_MACH_O_LC_SEGMENT:
4648 if (!bfd_mach_o_read_segment_32 (abfd, command))
4651 case BFD_MACH_O_LC_SEGMENT_64:
4652 if (!bfd_mach_o_read_segment_64 (abfd, command))
4655 case BFD_MACH_O_LC_SYMTAB:
4656 if (!bfd_mach_o_read_symtab (abfd, command))
4659 case BFD_MACH_O_LC_SYMSEG:
4661 case BFD_MACH_O_LC_THREAD:
4662 case BFD_MACH_O_LC_UNIXTHREAD:
4663 if (!bfd_mach_o_read_thread (abfd, command))
4666 case BFD_MACH_O_LC_LOAD_DYLINKER:
4667 case BFD_MACH_O_LC_ID_DYLINKER:
4668 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
4669 if (!bfd_mach_o_read_dylinker (abfd, command))
4672 case BFD_MACH_O_LC_LOAD_DYLIB:
4673 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
4674 case BFD_MACH_O_LC_ID_DYLIB:
4675 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
4676 case BFD_MACH_O_LC_REEXPORT_DYLIB:
4677 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
4678 if (!bfd_mach_o_read_dylib (abfd, command))
4681 case BFD_MACH_O_LC_PREBOUND_DYLIB:
4682 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4685 case BFD_MACH_O_LC_LOADFVMLIB:
4686 case BFD_MACH_O_LC_IDFVMLIB:
4687 if (!bfd_mach_o_read_fvmlib (abfd, command))
4690 case BFD_MACH_O_LC_IDENT:
4691 case BFD_MACH_O_LC_FVMFILE:
4692 case BFD_MACH_O_LC_PREPAGE:
4693 case BFD_MACH_O_LC_ROUTINES:
4694 case BFD_MACH_O_LC_ROUTINES_64:
4696 case BFD_MACH_O_LC_SUB_FRAMEWORK:
4697 case BFD_MACH_O_LC_SUB_UMBRELLA:
4698 case BFD_MACH_O_LC_SUB_LIBRARY:
4699 case BFD_MACH_O_LC_SUB_CLIENT:
4700 case BFD_MACH_O_LC_RPATH:
4701 if (!bfd_mach_o_read_str (abfd, command))
4704 case BFD_MACH_O_LC_DYSYMTAB:
4705 if (!bfd_mach_o_read_dysymtab (abfd, command))
4708 case BFD_MACH_O_LC_PREBIND_CKSUM:
4709 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4712 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
4713 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4716 case BFD_MACH_O_LC_UUID:
4717 if (!bfd_mach_o_read_uuid (abfd, command))
4720 case BFD_MACH_O_LC_CODE_SIGNATURE:
4721 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
4722 case BFD_MACH_O_LC_FUNCTION_STARTS:
4723 case BFD_MACH_O_LC_DATA_IN_CODE:
4724 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
4725 case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT:
4726 if (!bfd_mach_o_read_linkedit (abfd, command))
4729 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4730 if (!bfd_mach_o_read_encryption_info (abfd, command))
4733 case BFD_MACH_O_LC_ENCRYPTION_INFO_64:
4734 if (!bfd_mach_o_read_encryption_info_64 (abfd, command))
4737 case BFD_MACH_O_LC_DYLD_INFO:
4738 if (!bfd_mach_o_read_dyld_info (abfd, command))
4741 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4742 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4743 case BFD_MACH_O_LC_VERSION_MIN_WATCHOS:
4744 if (!bfd_mach_o_read_version_min (abfd, command))
4747 case BFD_MACH_O_LC_MAIN:
4748 if (!bfd_mach_o_read_main (abfd, command))
4751 case BFD_MACH_O_LC_SOURCE_VERSION:
4752 if (!bfd_mach_o_read_source_version (abfd, command))
4757 _bfd_error_handler (_("%pB: unknown load command %#x"),
4758 abfd, command->type);
4766 bfd_mach_o_flatten_sections (bfd *abfd)
4768 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4769 bfd_mach_o_load_command *cmd;
4772 /* Count total number of sections. */
4775 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4777 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4778 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4780 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4782 mdata->nsects += seg->nsects;
4786 /* Allocate sections array. */
4787 mdata->sections = bfd_alloc2 (abfd,
4788 mdata->nsects, sizeof (bfd_mach_o_section *));
4790 /* Fill the array. */
4793 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4795 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4796 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4798 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4799 bfd_mach_o_section *sec;
4801 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4803 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4804 mdata->sections[csect++] = sec;
4810 bfd_mach_o_scan_start_address (bfd *abfd)
4812 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4813 bfd_mach_o_thread_command *thr = NULL;
4814 bfd_mach_o_load_command *cmd;
4817 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4818 if (cmd->type == BFD_MACH_O_LC_THREAD
4819 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
4821 thr = &cmd->command.thread;
4824 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
4826 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
4827 bfd_mach_o_section *text_sect = mdata->sections[0];
4831 abfd->start_address = main_cmd->entryoff
4832 + (text_sect->addr - text_sect->offset);
4837 /* An object file has no start address, so do not fail if not found. */
4841 /* FIXME: create a subtarget hook ? */
4842 for (i = 0; i < thr->nflavours; i++)
4844 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
4845 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
4847 unsigned char buf[4];
4849 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
4850 || bfd_bread (buf, 4, abfd) != 4)
4853 abfd->start_address = bfd_h_get_32 (abfd, buf);
4855 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
4856 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
4858 unsigned char buf[4];
4860 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4861 || bfd_bread (buf, 4, abfd) != 4)
4864 abfd->start_address = bfd_h_get_32 (abfd, buf);
4866 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
4867 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
4869 unsigned char buf[8];
4871 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4872 || bfd_bread (buf, 8, abfd) != 8)
4875 abfd->start_address = bfd_h_get_64 (abfd, buf);
4877 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
4878 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
4880 unsigned char buf[8];
4882 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
4883 || bfd_bread (buf, 8, abfd) != 8)
4886 abfd->start_address = bfd_h_get_64 (abfd, buf);
4894 bfd_mach_o_set_arch_mach (bfd *abfd,
4895 enum bfd_architecture arch,
4896 unsigned long machine)
4898 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4900 /* If this isn't the right architecture for this backend, and this
4901 isn't the generic backend, fail. */
4902 if (arch != bed->arch
4903 && arch != bfd_arch_unknown
4904 && bed->arch != bfd_arch_unknown)
4907 return bfd_default_set_arch_mach (abfd, arch, machine);
4911 bfd_mach_o_scan (bfd *abfd,
4912 bfd_mach_o_header *header,
4913 bfd_mach_o_data_struct *mdata)
4916 enum bfd_architecture cputype;
4917 unsigned long cpusubtype;
4918 unsigned int hdrsize;
4920 hdrsize = mach_o_wide_p (header) ?
4921 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
4923 mdata->header = *header;
4925 abfd->flags = abfd->flags & BFD_IN_MEMORY;
4926 switch (header->filetype)
4928 case BFD_MACH_O_MH_OBJECT:
4929 abfd->flags |= HAS_RELOC;
4931 case BFD_MACH_O_MH_EXECUTE:
4932 abfd->flags |= EXEC_P;
4934 case BFD_MACH_O_MH_DYLIB:
4935 case BFD_MACH_O_MH_BUNDLE:
4936 abfd->flags |= DYNAMIC;
4940 abfd->tdata.mach_o_data = mdata;
4942 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4943 &cputype, &cpusubtype);
4944 if (cputype == bfd_arch_unknown)
4947 /* xgettext:c-format */
4948 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
4949 header->cputype, header->cpusubtype);
4953 bfd_set_arch_mach (abfd, cputype, cpusubtype);
4955 if (header->ncmds != 0)
4957 bfd_mach_o_load_command *cmd;
4959 mdata->first_command = NULL;
4960 mdata->last_command = NULL;
4962 cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command));
4966 for (i = 0; i < header->ncmds; i++)
4968 bfd_mach_o_load_command *cur = &cmd[i];
4970 bfd_mach_o_append_command (abfd, cur);
4973 cur->offset = hdrsize;
4976 bfd_mach_o_load_command *prev = &cmd[i - 1];
4977 cur->offset = prev->offset + prev->len;
4980 if (!bfd_mach_o_read_command (abfd, cur))
4985 /* Sections should be flatten before scanning start address. */
4986 bfd_mach_o_flatten_sections (abfd);
4987 if (!bfd_mach_o_scan_start_address (abfd))
4994 bfd_mach_o_mkobject_init (bfd *abfd)
4996 bfd_mach_o_data_struct *mdata = NULL;
4998 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
5001 abfd->tdata.mach_o_data = mdata;
5003 mdata->header.magic = 0;
5004 mdata->header.cputype = 0;
5005 mdata->header.cpusubtype = 0;
5006 mdata->header.filetype = 0;
5007 mdata->header.ncmds = 0;
5008 mdata->header.sizeofcmds = 0;
5009 mdata->header.flags = 0;
5010 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
5011 mdata->first_command = NULL;
5012 mdata->last_command = NULL;
5014 mdata->sections = NULL;
5015 mdata->dyn_reloc_cache = NULL;
5021 bfd_mach_o_gen_mkobject (bfd *abfd)
5023 bfd_mach_o_data_struct *mdata;
5025 if (!bfd_mach_o_mkobject_init (abfd))
5028 mdata = bfd_mach_o_get_data (abfd);
5029 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
5030 mdata->header.cputype = 0;
5031 mdata->header.cpusubtype = 0;
5032 mdata->header.byteorder = abfd->xvec->byteorder;
5033 mdata->header.version = 1;
5039 bfd_mach_o_header_p (bfd *abfd,
5041 bfd_mach_o_filetype filetype,
5042 bfd_mach_o_cpu_type cputype)
5044 bfd_mach_o_header header;
5045 bfd_mach_o_data_struct *mdata;
5047 if (!bfd_mach_o_read_header (abfd, hdr_off, &header))
5050 if (! (header.byteorder == BFD_ENDIAN_BIG
5051 || header.byteorder == BFD_ENDIAN_LITTLE))
5053 _bfd_error_handler (_("unknown header byte-order value %#x"),
5058 if (! ((header.byteorder == BFD_ENDIAN_BIG
5059 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
5060 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
5061 || (header.byteorder == BFD_ENDIAN_LITTLE
5062 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
5063 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
5066 /* Check cputype and filetype.
5067 In case of wildcard, do not accept magics that are handled by existing
5071 if (header.cputype != cputype)
5077 /* Do not recognize 64 architectures if not configured for 64bit targets.
5078 This could happen only for generic targets. */
5079 if (mach_o_wide_p (&header))
5086 if (header.filetype != filetype)
5091 switch (header.filetype)
5093 case BFD_MACH_O_MH_CORE:
5094 /* Handled by core_p */
5101 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5104 mdata->hdr_offset = hdr_off;
5106 if (!bfd_mach_o_scan (abfd, &header, mdata))
5112 bfd_set_error (bfd_error_wrong_format);
5118 static const bfd_target *
5119 bfd_mach_o_gen_object_p (bfd *abfd)
5121 return bfd_mach_o_header_p (abfd, 0, 0, 0);
5124 static const bfd_target *
5125 bfd_mach_o_gen_core_p (bfd *abfd)
5127 return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0);
5130 /* Return the base address of ABFD, ie the address at which the image is
5131 mapped. The possible initial pagezero is ignored. */
5134 bfd_mach_o_get_base_address (bfd *abfd)
5136 bfd_mach_o_data_struct *mdata;
5137 bfd_mach_o_load_command *cmd;
5139 /* Check for Mach-O. */
5140 if (!bfd_mach_o_valid (abfd))
5142 mdata = bfd_mach_o_get_data (abfd);
5144 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5146 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5147 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5149 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5151 if (segcmd->initprot != 0)
5152 return segcmd->vmaddr;
5158 typedef struct mach_o_fat_archentry
5160 unsigned long cputype;
5161 unsigned long cpusubtype;
5162 unsigned long offset;
5164 unsigned long align;
5165 } mach_o_fat_archentry;
5167 typedef struct mach_o_fat_data_struct
5169 unsigned long magic;
5170 unsigned long nfat_arch;
5171 mach_o_fat_archentry *archentries;
5172 } mach_o_fat_data_struct;
5175 bfd_mach_o_fat_archive_p (bfd *abfd)
5177 mach_o_fat_data_struct *adata = NULL;
5178 struct mach_o_fat_header_external hdr;
5181 if (bfd_seek (abfd, 0, SEEK_SET) != 0
5182 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
5185 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
5189 adata->magic = bfd_getb32 (hdr.magic);
5190 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
5191 if (adata->magic != 0xcafebabe)
5193 /* Avoid matching Java bytecode files, which have the same magic number.
5194 In the Java bytecode file format this field contains the JVM version,
5195 which starts at 43.0. */
5196 if (adata->nfat_arch > 30)
5199 adata->archentries =
5200 bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry));
5201 if (adata->archentries == NULL)
5204 for (i = 0; i < adata->nfat_arch; i++)
5206 struct mach_o_fat_arch_external arch;
5207 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
5209 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5210 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5211 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5212 adata->archentries[i].size = bfd_getb32 (arch.size);
5213 adata->archentries[i].align = bfd_getb32 (arch.align);
5216 abfd->tdata.mach_o_fat_data = adata;
5222 bfd_release (abfd, adata);
5223 bfd_set_error (bfd_error_wrong_format);
5227 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5228 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5229 Set arelt_data and origin fields too. */
5232 bfd_mach_o_fat_member_init (bfd *abfd,
5233 enum bfd_architecture arch_type,
5234 unsigned long arch_subtype,
5235 mach_o_fat_archentry *entry)
5237 struct areltdata *areltdata;
5238 /* Create the member filename. Use ARCH_NAME. */
5239 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5243 /* Use the architecture name if known. */
5244 abfd->filename = xstrdup (ap->printable_name);
5248 /* Forge a uniq id. */
5249 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
5250 char *name = xmalloc (namelen);
5251 snprintf (name, namelen, "0x%lx-0x%lx",
5252 entry->cputype, entry->cpusubtype);
5253 abfd->filename = name;
5256 areltdata = bfd_zmalloc (sizeof (struct areltdata));
5257 areltdata->parsed_size = entry->size;
5258 abfd->arelt_data = areltdata;
5259 abfd->iostream = NULL;
5260 abfd->origin = entry->offset;
5264 bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev)
5266 mach_o_fat_data_struct *adata;
5267 mach_o_fat_archentry *entry = NULL;
5270 enum bfd_architecture arch_type;
5271 unsigned long arch_subtype;
5273 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
5274 BFD_ASSERT (adata != NULL);
5276 /* Find index of previous entry. */
5279 /* Start at first one. */
5284 /* Find index of PREV. */
5285 for (i = 0; i < adata->nfat_arch; i++)
5287 if (adata->archentries[i].offset == prev->origin)
5291 if (i == adata->nfat_arch)
5294 bfd_set_error (bfd_error_bad_value);
5298 /* Get next entry. */
5302 if (i >= adata->nfat_arch)
5304 bfd_set_error (bfd_error_no_more_archived_files);
5308 entry = &adata->archentries[i];
5309 nbfd = _bfd_new_bfd_contained_in (archive);
5313 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5314 &arch_type, &arch_subtype);
5316 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5318 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
5323 /* Analogous to stat call. */
5326 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5328 if (abfd->arelt_data == NULL)
5330 bfd_set_error (bfd_error_invalid_operation);
5337 buf->st_mode = 0644;
5338 buf->st_size = arelt_size (abfd);
5343 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5344 If ABFD is a fat image containing a member that corresponds to FORMAT
5345 and ARCH, returns it.
5346 In other case, returns NULL.
5347 This function allows transparent uses of fat images. */
5350 bfd_mach_o_fat_extract (bfd *abfd,
5352 const bfd_arch_info_type *arch)
5355 mach_o_fat_data_struct *adata;
5358 if (bfd_check_format (abfd, format))
5360 if (bfd_get_arch_info (abfd) == arch)
5364 if (!bfd_check_format (abfd, bfd_archive)
5365 || abfd->xvec != &mach_o_fat_vec)
5368 /* This is a Mach-O fat image. */
5369 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5370 BFD_ASSERT (adata != NULL);
5372 for (i = 0; i < adata->nfat_arch; i++)
5374 struct mach_o_fat_archentry *e = &adata->archentries[i];
5375 enum bfd_architecture cpu_type;
5376 unsigned long cpu_subtype;
5378 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5379 &cpu_type, &cpu_subtype);
5380 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5383 /* The architecture is found. */
5384 res = _bfd_new_bfd_contained_in (abfd);
5388 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
5390 if (bfd_check_format (res, format))
5392 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5403 bfd_mach_o_lookup_command (bfd *abfd,
5404 bfd_mach_o_load_command_type type,
5405 bfd_mach_o_load_command **mcommand)
5407 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5408 struct bfd_mach_o_load_command *cmd;
5411 BFD_ASSERT (mdata != NULL);
5412 BFD_ASSERT (mcommand != NULL);
5415 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5417 if (cmd->type != type)
5429 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
5433 case BFD_MACH_O_CPU_TYPE_MC680x0:
5435 case BFD_MACH_O_CPU_TYPE_POWERPC:
5437 case BFD_MACH_O_CPU_TYPE_I386:
5439 case BFD_MACH_O_CPU_TYPE_SPARC:
5441 case BFD_MACH_O_CPU_TYPE_HPPA:
5442 return 0xc0000000 - 0x04000000;
5448 /* The following two tables should be kept, as far as possible, in order of
5449 most frequently used entries to optimize their use from gas. */
5451 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
5453 { "regular", BFD_MACH_O_S_REGULAR},
5454 { "coalesced", BFD_MACH_O_S_COALESCED},
5455 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5456 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5457 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5458 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
5459 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
5460 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
5461 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5462 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
5463 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5464 { "interposing", BFD_MACH_O_S_INTERPOSING},
5465 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
5466 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5467 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
5468 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
5469 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5473 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
5475 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5476 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
5477 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5478 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
5479 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
5480 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5481 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5482 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5483 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
5484 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5485 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5489 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5492 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
5494 const bfd_mach_o_xlat_name *x;
5495 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5497 for (x = bfd_mach_o_section_type_name; x->name; x++)
5498 if (strcmp (x->name, name) == 0)
5500 /* We found it... does the target support it? */
5501 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5502 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5503 return x->val; /* OK. */
5505 break; /* Not supported. */
5507 /* Maximum section ID = 0xff. */
5511 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5514 bfd_mach_o_get_section_attribute_from_name (const char *name)
5516 const bfd_mach_o_xlat_name *x;
5518 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5519 if (strcmp (x->name, name) == 0)
5521 return (unsigned int)-1;
5525 bfd_mach_o_core_fetch_environment (bfd *abfd,
5526 unsigned char **rbuf,
5529 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5530 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
5531 bfd_mach_o_load_command *cmd;
5533 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5535 bfd_mach_o_segment_command *seg;
5537 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
5540 seg = &cmd->command.segment;
5542 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5544 unsigned long start = seg->fileoff;
5545 unsigned long end = seg->fileoff + seg->filesize;
5546 unsigned char *buf = bfd_malloc (1024);
5547 unsigned long size = 1024;
5551 bfd_size_type nread = 0;
5552 unsigned long offset;
5553 int found_nonnull = 0;
5555 if (size > (end - start))
5556 size = (end - start);
5558 buf = bfd_realloc_or_free (buf, size);
5562 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5568 nread = bfd_bread (buf, size, abfd);
5576 for (offset = 4; offset <= size; offset += 4)
5580 val = *((unsigned long *) (buf + size - offset));
5581 if (! found_nonnull)
5586 else if (val == 0x0)
5588 unsigned long bottom;
5591 bottom = seg->fileoff + seg->filesize - offset;
5592 top = seg->fileoff + seg->filesize - 4;
5593 *rbuf = bfd_malloc (top - bottom);
5594 *rlen = top - bottom;
5596 memcpy (*rbuf, buf + size - *rlen, *rlen);
5602 if (size == (end - start))
5616 bfd_mach_o_core_file_failing_command (bfd *abfd)
5618 unsigned char *buf = NULL;
5619 unsigned int len = 0;
5622 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5626 return (char *) buf;
5630 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
5635 static bfd_mach_o_uuid_command *
5636 bfd_mach_o_lookup_uuid_command (bfd *abfd)
5638 bfd_mach_o_load_command *uuid_cmd = NULL;
5639 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5640 if (ncmd != 1 || uuid_cmd == NULL)
5642 return &uuid_cmd->command.uuid;
5645 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5648 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5650 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5653 BFD_ASSERT (uuid_cmd);
5655 if (!bfd_check_format (abfd, bfd_object))
5658 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5659 || bfd_mach_o_get_data (abfd) == NULL
5660 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5663 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5664 if (dsym_uuid_cmd == NULL)
5667 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5668 sizeof (uuid_cmd->uuid)) != 0)
5674 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5675 The caller is responsible for closing the returned BFD object and
5676 its my_archive if the returned BFD is in a fat dSYM. */
5679 bfd_mach_o_find_dsym (const char *dsym_filename,
5680 const bfd_mach_o_uuid_command *uuid_cmd,
5681 const bfd_arch_info_type *arch)
5683 bfd *base_dsym_bfd, *dsym_bfd;
5685 BFD_ASSERT (uuid_cmd);
5687 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5688 if (base_dsym_bfd == NULL)
5691 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5692 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5695 bfd_close (dsym_bfd);
5696 if (base_dsym_bfd != dsym_bfd)
5697 bfd_close (base_dsym_bfd);
5702 /* Return a BFD created from a dSYM file for ABFD.
5703 The caller is responsible for closing the returned BFD object, its
5704 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5707 bfd_mach_o_follow_dsym (bfd *abfd)
5709 char *dsym_filename;
5710 bfd_mach_o_uuid_command *uuid_cmd;
5711 bfd *dsym_bfd, *base_bfd = abfd;
5712 const char *base_basename;
5714 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5717 if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive))
5718 base_bfd = abfd->my_archive;
5719 /* BFD may have been opened from a stream. */
5720 if (base_bfd->filename == NULL)
5722 bfd_set_error (bfd_error_invalid_operation);
5725 base_basename = lbasename (base_bfd->filename);
5727 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5728 if (uuid_cmd == NULL)
5731 /* TODO: We assume the DWARF file has the same as the binary's.
5732 It seems apple's GDB checks all files in the dSYM bundle directory.
5733 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5735 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5736 + strlen (dsym_subdir) + 1
5737 + strlen (base_basename) + 1);
5738 sprintf (dsym_filename, "%s%s/%s",
5739 base_bfd->filename, dsym_subdir, base_basename);
5741 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5742 bfd_get_arch_info (abfd));
5743 if (dsym_bfd == NULL)
5744 free (dsym_filename);
5750 bfd_mach_o_find_nearest_line (bfd *abfd,
5754 const char **filename_ptr,
5755 const char **functionname_ptr,
5756 unsigned int *line_ptr,
5757 unsigned int *discriminator_ptr)
5759 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5762 switch (mdata->header.filetype)
5764 case BFD_MACH_O_MH_OBJECT:
5766 case BFD_MACH_O_MH_EXECUTE:
5767 case BFD_MACH_O_MH_DYLIB:
5768 case BFD_MACH_O_MH_BUNDLE:
5769 case BFD_MACH_O_MH_KEXT_BUNDLE:
5770 if (mdata->dwarf2_find_line_info == NULL)
5772 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5773 /* When we couldn't find dSYM for this binary, we look for
5774 the debug information in the binary itself. In this way,
5775 we won't try finding separated dSYM again because
5776 mdata->dwarf2_find_line_info will be filled. */
5777 if (! mdata->dsym_bfd)
5779 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5780 dwarf_debug_sections, symbols,
5781 &mdata->dwarf2_find_line_info,
5789 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5790 filename_ptr, functionname_ptr,
5791 line_ptr, discriminator_ptr,
5792 dwarf_debug_sections, 0,
5793 &mdata->dwarf2_find_line_info);
5797 bfd_mach_o_close_and_cleanup (bfd *abfd)
5799 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5800 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
5802 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5803 bfd_mach_o_free_cached_info (abfd);
5804 if (mdata->dsym_bfd != NULL)
5806 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5808 /* FIXME: PR 19435: This calculation to find the memory allocated by
5809 bfd_mach_o_follow_dsym for the filename does not always end up
5810 selecting the correct pointer. Unfortunately this problem is
5811 very hard to reproduce on a non Mach-O native system, so until it
5812 can be traced and fixed on such a system, this code will remain
5813 commented out. This does mean that there will be a memory leak,
5814 but it is small, and happens when we are closing down, so it
5815 should not matter too much. */
5816 char *dsym_filename = (char *)(fat_bfd
5818 : mdata->dsym_bfd->filename);
5820 bfd_close (mdata->dsym_bfd);
5821 mdata->dsym_bfd = NULL;
5823 bfd_close (fat_bfd);
5825 free (dsym_filename);
5830 return _bfd_generic_close_and_cleanup (abfd);
5833 bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
5835 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5837 free (mdata->dyn_reloc_cache);
5838 mdata->dyn_reloc_cache = NULL;
5839 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5841 free (asect->relocation);
5842 asect->relocation = NULL;
5848 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5849 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5851 #define bfd_mach_o_canonicalize_one_reloc NULL
5852 #define bfd_mach_o_swap_reloc_out NULL
5853 #define bfd_mach_o_print_thread NULL
5854 #define bfd_mach_o_tgt_seg_table NULL
5855 #define bfd_mach_o_section_type_valid_for_tgt NULL
5857 #define TARGET_NAME mach_o_be_vec
5858 #define TARGET_STRING "mach-o-be"
5859 #define TARGET_ARCHITECTURE bfd_arch_unknown
5860 #define TARGET_PAGESIZE 1
5861 #define TARGET_BIG_ENDIAN 1
5862 #define TARGET_ARCHIVE 0
5863 #define TARGET_PRIORITY 1
5864 #include "mach-o-target.c"
5867 #undef TARGET_STRING
5868 #undef TARGET_ARCHITECTURE
5869 #undef TARGET_PAGESIZE
5870 #undef TARGET_BIG_ENDIAN
5871 #undef TARGET_ARCHIVE
5872 #undef TARGET_PRIORITY
5874 #define TARGET_NAME mach_o_le_vec
5875 #define TARGET_STRING "mach-o-le"
5876 #define TARGET_ARCHITECTURE bfd_arch_unknown
5877 #define TARGET_PAGESIZE 1
5878 #define TARGET_BIG_ENDIAN 0
5879 #define TARGET_ARCHIVE 0
5880 #define TARGET_PRIORITY 1
5882 #include "mach-o-target.c"
5885 #undef TARGET_STRING
5886 #undef TARGET_ARCHITECTURE
5887 #undef TARGET_PAGESIZE
5888 #undef TARGET_BIG_ENDIAN
5889 #undef TARGET_ARCHIVE
5890 #undef TARGET_PRIORITY
5892 /* Not yet handled: creating an archive. */
5893 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
5895 #define bfd_mach_o_close_and_cleanup _bfd_bool_bfd_true
5898 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
5899 #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file
5900 #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p
5902 #define TARGET_NAME mach_o_fat_vec
5903 #define TARGET_STRING "mach-o-fat"
5904 #define TARGET_ARCHITECTURE bfd_arch_unknown
5905 #define TARGET_PAGESIZE 1
5906 #define TARGET_BIG_ENDIAN 1
5907 #define TARGET_ARCHIVE 1
5908 #define TARGET_PRIORITY 0
5910 #include "mach-o-target.c"
5913 #undef TARGET_STRING
5914 #undef TARGET_ARCHITECTURE
5915 #undef TARGET_PAGESIZE
5916 #undef TARGET_BIG_ENDIAN
5917 #undef TARGET_ARCHIVE
5918 #undef TARGET_PRIORITY