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_MC88000:
1044 *type = bfd_arch_m88k;
1046 case BFD_MACH_O_CPU_TYPE_SPARC:
1047 *type = bfd_arch_sparc;
1048 *subtype = bfd_mach_sparc;
1050 case BFD_MACH_O_CPU_TYPE_I860:
1051 *type = bfd_arch_i860;
1053 case BFD_MACH_O_CPU_TYPE_ALPHA:
1054 *type = bfd_arch_alpha;
1056 case BFD_MACH_O_CPU_TYPE_POWERPC:
1057 *type = bfd_arch_powerpc;
1058 *subtype = bfd_mach_ppc;
1060 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1061 *type = bfd_arch_powerpc;
1062 *subtype = bfd_mach_ppc64;
1064 case BFD_MACH_O_CPU_TYPE_ARM64:
1065 *type = bfd_arch_aarch64;
1066 *subtype = bfd_mach_aarch64;
1069 *type = bfd_arch_unknown;
1074 /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1075 number of bytes written or -1 in case of error. */
1078 bfd_mach_o_pad4 (bfd *abfd, unsigned int len)
1082 char pad[4] = {0,0,0,0};
1083 unsigned int padlen = 4 - (len % 4);
1085 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1094 /* Likewise, but for a command. */
1097 bfd_mach_o_pad_command (bfd *abfd, unsigned int len)
1099 unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4;
1101 if (len % align != 0)
1104 unsigned int padlen = align - (len % align);
1106 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1116 bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
1118 struct mach_o_header_external raw;
1121 size = mach_o_wide_p (header) ?
1122 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1124 bfd_h_put_32 (abfd, header->magic, raw.magic);
1125 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
1126 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
1127 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
1128 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
1129 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
1130 bfd_h_put_32 (abfd, header->flags, raw.flags);
1132 if (mach_o_wide_p (header))
1133 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1135 if (bfd_seek (abfd, 0, SEEK_SET) != 0
1136 || bfd_bwrite (&raw, size, abfd) != size)
1143 bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
1145 bfd_mach_o_thread_command *cmd = &command->command.thread;
1147 struct mach_o_thread_command_external raw;
1148 unsigned int offset;
1150 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1151 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1153 offset = BFD_MACH_O_LC_SIZE;
1154 for (i = 0; i < cmd->nflavours; i++)
1156 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
1157 BFD_ASSERT (cmd->flavours[i].offset ==
1158 (command->offset + offset + BFD_MACH_O_LC_SIZE));
1160 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
1161 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
1163 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
1164 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1167 offset += cmd->flavours[i].size + sizeof (raw);
1174 bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
1176 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1177 struct mach_o_str_command_external raw;
1178 unsigned int namelen;
1180 bfd_h_put_32 (abfd, cmd->name_offset, raw.str);
1182 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1183 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1186 namelen = strlen (cmd->name_str) + 1;
1187 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1190 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1197 bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1199 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1200 struct mach_o_dylib_command_external raw;
1201 unsigned int namelen;
1203 bfd_h_put_32 (abfd, cmd->name_offset, raw.name);
1204 bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp);
1205 bfd_h_put_32 (abfd, cmd->current_version, raw.current_version);
1206 bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version);
1208 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1209 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1212 namelen = strlen (cmd->name_str) + 1;
1213 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1216 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1223 bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
1225 bfd_mach_o_main_command *cmd = &command->command.main;
1226 struct mach_o_entry_point_command_external raw;
1228 bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff);
1229 bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize);
1231 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1232 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1239 bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
1241 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
1242 struct mach_o_dyld_info_command_external raw;
1244 bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off);
1245 bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size);
1246 bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off);
1247 bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size);
1248 bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off);
1249 bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size);
1250 bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off);
1251 bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size);
1252 bfd_h_put_32 (abfd, cmd->export_off, raw.export_off);
1253 bfd_h_put_32 (abfd, cmd->export_size, raw.export_size);
1255 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1256 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1259 if (cmd->rebase_size != 0)
1260 if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
1261 || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
1265 if (cmd->bind_size != 0)
1266 if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
1267 || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
1271 if (cmd->weak_bind_size != 0)
1272 if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
1273 || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
1274 cmd->weak_bind_size))
1277 if (cmd->lazy_bind_size != 0)
1278 if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
1279 || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
1280 cmd->lazy_bind_size))
1283 if (cmd->export_size != 0)
1284 if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
1285 || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
1293 bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
1296 return (asect->reloc_count + 1) * sizeof (arelent *);
1299 /* In addition to the need to byte-swap the symbol number, the bit positions
1300 of the fields in the relocation information vary per target endian-ness. */
1303 bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel,
1304 unsigned char *fields)
1306 unsigned char info = fields[3];
1308 if (bfd_big_endian (abfd))
1310 rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2];
1311 rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1312 rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0;
1313 rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT)
1314 & BFD_MACH_O_LENGTH_MASK;
1315 rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0;
1319 rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0];
1320 rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1321 rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0;
1322 rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT)
1323 & BFD_MACH_O_LENGTH_MASK;
1324 rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0;
1328 /* Set syms_ptr_ptr and addend of RES. */
1331 bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd,
1332 bfd_mach_o_reloc_info *reloc,
1333 arelent *res, asymbol **syms)
1335 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1339 /* Non-scattered relocation. */
1340 reloc->r_scattered = 0;
1343 num = reloc->r_value;
1345 if (reloc->r_extern)
1347 /* PR 17512: file: 8396-1185-0.004. */
1348 if (num >= (unsigned) bfd_mach_o_count_symbols (abfd))
1349 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1350 else if (syms == NULL)
1351 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1353 /* An external symbol number. */
1356 else if (num == 0x00ffffff || num == 0)
1358 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1359 is generic code, we don't know wether this is really a PAIR.
1360 This value is almost certainly not a valid section number, hence
1361 this specific case to avoid an assertion failure.
1362 Target specific swap_reloc_in routine should adjust that. */
1363 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1367 /* PR 17512: file: 006-2964-0.004. */
1368 if (num > mdata->nsects)
1371 /* A section number. */
1372 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1373 /* For a symbol defined in section S, the addend (stored in the
1374 binary) contains the address of the section. To comply with
1375 bfd convention, subtract the section address.
1376 Use the address from the header, so that the user can modify
1377 the vma of the section. */
1378 res->addend = -mdata->sections[num - 1]->addr;
1381 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1382 in the lower 16bits of the address value. So we have to find the
1383 'symbol' from the preceding reloc. We do this even though the
1384 section symbol is probably not needed here, because NULL symbol
1385 values cause an assert in generic BFD code. This must be done in
1386 the PPC swap_reloc_in routine. */
1387 res->sym_ptr_ptr = sym;
1392 /* Do most of the work for canonicalize_relocs on RAW: create internal
1393 representation RELOC and set most fields of RES using symbol table SYMS.
1394 Each target still has to set the howto of RES and possibly adjust other
1396 Previously the Mach-O hook point was simply swap_in, but some targets
1397 (like arm64) don't follow the generic rules (symnum is a value for the
1398 non-scattered relocation ADDEND). */
1401 bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd,
1402 struct mach_o_reloc_info_external *raw,
1403 bfd_mach_o_reloc_info *reloc,
1404 arelent *res, asymbol **syms)
1406 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1409 addr = bfd_get_32 (abfd, raw->r_address);
1410 res->sym_ptr_ptr = NULL;
1413 if (addr & BFD_MACH_O_SR_SCATTERED)
1416 bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum);
1418 /* Scattered relocation, can't be extern. */
1419 reloc->r_scattered = 1;
1420 reloc->r_extern = 0;
1422 /* Extract section and offset from r_value (symnum). */
1423 reloc->r_value = symnum;
1424 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1425 end of the data for the section (e.g. in a calculation of section
1426 data length). At present, the symbol will end up associated with
1427 the following section or, if it falls within alignment padding, as
1428 null - which will assert later. */
1429 for (j = 0; j < mdata->nsects; j++)
1431 bfd_mach_o_section *sect = mdata->sections[j];
1432 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1434 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1435 res->addend = symnum - sect->addr;
1440 /* Extract the info and address fields from r_address. */
1441 reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1442 reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1443 reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL;
1444 reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr);
1445 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
1449 /* Non-scattered relocation. */
1450 reloc->r_scattered = 0;
1451 reloc->r_address = addr;
1452 res->address = addr;
1454 /* The value and info fields have to be extracted dependent on target
1456 bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum);
1458 if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc,
1463 /* We have set up a reloc with all the information present, so the swapper
1464 can modify address, value and addend fields, if necessary, to convey
1465 information in the generic BFD reloc that is mach-o specific. */
1471 bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1472 unsigned long count,
1473 arelent *res, asymbol **syms)
1475 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1477 struct mach_o_reloc_info_external *native_relocs;
1478 bfd_size_type native_size;
1480 /* Allocate and read relocs. */
1481 native_size = count * BFD_MACH_O_RELENT_SIZE;
1483 /* PR 17512: file: 09477b57. */
1484 if (native_size < count)
1488 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
1489 if (native_relocs == NULL)
1492 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
1493 || bfd_bread (native_relocs, native_size, abfd) != native_size)
1496 for (i = 0; i < count; i++)
1498 if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i],
1499 &res[i], syms, res))
1502 free (native_relocs);
1505 free (native_relocs);
1510 bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1511 arelent **rels, asymbol **syms)
1513 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1517 if (asect->reloc_count == 0)
1520 /* No need to go further if we don't know how to read relocs. */
1521 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
1524 if (asect->relocation == NULL)
1526 if (asect->reloc_count * sizeof (arelent) < asect->reloc_count)
1528 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1532 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1533 asect->reloc_count, res, syms) < 0)
1538 asect->relocation = res;
1541 res = asect->relocation;
1542 for (i = 0; i < asect->reloc_count; i++)
1550 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1552 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1554 if (mdata->dysymtab == NULL)
1556 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
1557 * sizeof (arelent *);
1561 bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1562 struct bfd_symbol **syms)
1564 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1565 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1566 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1570 if (dysymtab == NULL)
1572 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1575 /* No need to go further if we don't know how to read relocs. */
1576 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
1579 if (mdata->dyn_reloc_cache == NULL)
1581 if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent)
1582 < (dysymtab->nextrel + dysymtab->nlocrel))
1585 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1586 * sizeof (arelent));
1590 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1591 dysymtab->nextrel, res, syms) < 0)
1597 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1599 res + dysymtab->nextrel, syms) < 0)
1605 mdata->dyn_reloc_cache = res;
1608 res = mdata->dyn_reloc_cache;
1609 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1615 /* In addition to the need to byte-swap the symbol number, the bit positions
1616 of the fields in the relocation information vary per target endian-ness. */
1619 bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
1620 bfd_mach_o_reloc_info *rel)
1622 unsigned char info = 0;
1624 BFD_ASSERT (rel->r_type <= 15);
1625 BFD_ASSERT (rel->r_length <= 3);
1627 if (bfd_big_endian (abfd))
1629 fields[0] = (rel->r_value >> 16) & 0xff;
1630 fields[1] = (rel->r_value >> 8) & 0xff;
1631 fields[2] = rel->r_value & 0xff;
1632 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1633 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1634 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1635 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1639 fields[2] = (rel->r_value >> 16) & 0xff;
1640 fields[1] = (rel->r_value >> 8) & 0xff;
1641 fields[0] = rel->r_value & 0xff;
1642 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1643 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1644 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1645 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1651 bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
1656 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1658 sec = section->bfdsection;
1659 if (sec->reloc_count == 0)
1662 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1665 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1668 /* Convert and write. */
1669 entries = section->bfdsection->orelocation;
1670 for (i = 0; i < section->nreloc; i++)
1672 arelent *rel = entries[i];
1673 struct mach_o_reloc_info_external raw;
1674 bfd_mach_o_reloc_info info, *pinfo = &info;
1676 /* Convert relocation to an intermediate representation. */
1677 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1680 /* Lower the relocation info. */
1681 if (pinfo->r_scattered)
1685 v = BFD_MACH_O_SR_SCATTERED
1686 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1687 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1688 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1689 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
1690 /* Note: scattered relocs have field in reverse order... */
1691 bfd_put_32 (abfd, v, raw.r_address);
1692 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1696 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1697 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
1701 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
1702 != BFD_MACH_O_RELENT_SIZE)
1709 bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
1711 struct mach_o_section_32_external raw;
1713 memcpy (raw.sectname, section->sectname, 16);
1714 memcpy (raw.segname, section->segname, 16);
1715 bfd_h_put_32 (abfd, section->addr, raw.addr);
1716 bfd_h_put_32 (abfd, section->size, raw.size);
1717 bfd_h_put_32 (abfd, section->offset, raw.offset);
1718 bfd_h_put_32 (abfd, section->align, raw.align);
1719 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1720 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1721 bfd_h_put_32 (abfd, section->flags, raw.flags);
1722 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1723 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1725 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
1726 != BFD_MACH_O_SECTION_SIZE)
1733 bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
1735 struct mach_o_section_64_external raw;
1737 memcpy (raw.sectname, section->sectname, 16);
1738 memcpy (raw.segname, section->segname, 16);
1739 bfd_h_put_64 (abfd, section->addr, raw.addr);
1740 bfd_h_put_64 (abfd, section->size, raw.size);
1741 bfd_h_put_32 (abfd, section->offset, raw.offset);
1742 bfd_h_put_32 (abfd, section->align, raw.align);
1743 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1744 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1745 bfd_h_put_32 (abfd, section->flags, raw.flags);
1746 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1747 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1748 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1750 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
1751 != BFD_MACH_O_SECTION_64_SIZE)
1758 bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1760 struct mach_o_segment_command_32_external raw;
1761 bfd_mach_o_segment_command *seg = &command->command.segment;
1762 bfd_mach_o_section *sec;
1764 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1766 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1767 if (!bfd_mach_o_write_relocs (abfd, sec))
1770 memcpy (raw.segname, seg->segname, 16);
1771 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1772 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1773 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1774 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1775 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1776 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1777 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1778 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1780 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1781 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1784 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1785 if (!bfd_mach_o_write_section_32 (abfd, sec))
1792 bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1794 struct mach_o_segment_command_64_external raw;
1795 bfd_mach_o_segment_command *seg = &command->command.segment;
1796 bfd_mach_o_section *sec;
1798 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1800 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1801 if (!bfd_mach_o_write_relocs (abfd, sec))
1804 memcpy (raw.segname, seg->segname, 16);
1805 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1806 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1807 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1808 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1809 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1810 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1811 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1812 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1814 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1815 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1818 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1819 if (!bfd_mach_o_write_section_64 (abfd, sec))
1826 bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
1828 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1830 unsigned int wide = bfd_mach_o_wide_p (abfd);
1831 struct bfd_strtab_hash *strtab;
1832 asymbol **symbols = bfd_get_outsymbols (abfd);
1835 /* Write the symbols first. */
1836 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1839 strtab = _bfd_stringtab_init ();
1844 /* Although we don't strictly need to do this, for compatibility with
1845 Darwin system tools, actually output an empty string for the index
1847 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1849 for (i = 0; i < sym->nsyms; i++)
1851 bfd_size_type str_index;
1852 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1854 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
1855 /* An index of 0 always means the empty string. */
1859 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
1861 if (str_index == (bfd_size_type) -1)
1867 struct mach_o_nlist_64_external raw;
1869 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1870 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1871 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1872 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1873 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
1876 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1881 struct mach_o_nlist_external raw;
1883 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1884 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1885 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1886 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
1887 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
1890 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1894 sym->strsize = _bfd_stringtab_size (strtab);
1895 sym->stroff = mdata->filelen;
1896 mdata->filelen += sym->strsize;
1898 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
1901 if (!_bfd_stringtab_emit (abfd, strtab))
1904 /* Pad string table. */
1905 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
1908 mdata->filelen += padlen;
1909 sym->strsize += padlen;
1914 _bfd_stringtab_free (strtab);
1920 bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
1922 bfd_mach_o_symtab_command *sym = &command->command.symtab;
1923 struct mach_o_symtab_command_external raw;
1925 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
1928 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
1929 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
1930 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
1931 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
1933 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1934 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1940 /* Count the number of indirect symbols in the image.
1941 Requires that the sections are in their final order. */
1944 bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
1947 unsigned int nisyms = 0;
1949 for (i = 0; i < mdata->nsects; ++i)
1951 bfd_mach_o_section *sec = mdata->sections[i];
1953 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
1955 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
1956 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
1957 case BFD_MACH_O_S_SYMBOL_STUBS:
1958 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
1967 /* Create the dysymtab. */
1970 bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
1972 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1975 We are not going to try and fill these in yet and, moreover, we are
1976 going to bail if they are already set. */
1977 if (cmd->nmodtab != 0
1979 || cmd->nextrefsyms != 0)
1981 _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet"
1982 " implemented for dysymtab commands."));
1988 if (bfd_get_symcount (abfd) > 0)
1990 asymbol **symbols = bfd_get_outsymbols (abfd);
1993 /* Count the number of each kind of symbol. */
1994 for (i = 0; i < bfd_get_symcount (abfd); ++i)
1996 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1997 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
2001 cmd->iextdefsym = i;
2002 for (; i < bfd_get_symcount (abfd); ++i)
2004 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2005 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
2008 cmd->nextdefsym = i - cmd->nlocalsym;
2009 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
2010 cmd->nundefsym = bfd_get_symcount (abfd)
2017 cmd->iextdefsym = 0;
2018 cmd->nextdefsym = 0;
2023 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
2024 if (cmd->nindirectsyms > 0)
2029 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2030 cmd->indirectsymoff = mdata->filelen;
2031 mdata->filelen += cmd->nindirectsyms * 4;
2033 if (cmd->nindirectsyms * 4 < cmd->nindirectsyms)
2035 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
2036 if (cmd->indirect_syms == NULL)
2040 for (i = 0; i < mdata->nsects; ++i)
2042 bfd_mach_o_section *sec = mdata->sections[i];
2044 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2046 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2047 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2048 case BFD_MACH_O_S_SYMBOL_STUBS:
2051 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
2053 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2054 if (isyms == NULL || num == 0)
2056 /* Record the starting index in the reserved1 field. */
2058 for (j = 0; j < num; j++, n++)
2060 if (isyms[j] == NULL)
2061 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
2062 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
2063 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
2064 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
2065 | BFD_MACH_O_INDIRECT_SYM_ABS;
2067 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
2080 /* Write a dysymtab command.
2081 TODO: Possibly coalesce writes of smaller objects. */
2084 bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2086 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2088 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2090 if (cmd->nmodtab != 0)
2094 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2097 for (i = 0; i < cmd->nmodtab; i++)
2099 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2103 iinit = module->iinit & 0xffff;
2104 iinit |= ((module->iterm & 0xffff) << 16);
2106 ninit = module->ninit & 0xffff;
2107 ninit |= ((module->nterm & 0xffff) << 16);
2109 if (bfd_mach_o_wide_p (abfd))
2111 struct mach_o_dylib_module_64_external w;
2113 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2114 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2115 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2116 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2117 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2118 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2119 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2120 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2121 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2122 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2123 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2124 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2125 &w.objc_module_info_addr);
2126 bfd_h_put_32 (abfd, module->objc_module_info_size,
2127 &w.objc_module_info_size);
2129 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2134 struct mach_o_dylib_module_external n;
2136 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2137 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2138 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2139 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2140 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2141 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2142 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2143 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2144 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2145 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2146 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2147 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2148 &n.objc_module_info_addr);
2149 bfd_h_put_32 (abfd, module->objc_module_info_size,
2150 &n.objc_module_info_size);
2152 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2162 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2165 for (i = 0; i < cmd->ntoc; i++)
2167 struct mach_o_dylib_table_of_contents_external raw;
2168 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2170 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2171 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2173 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2178 if (cmd->nindirectsyms > 0)
2182 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2185 for (i = 0; i < cmd->nindirectsyms; ++i)
2187 unsigned char raw[4];
2189 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2190 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2195 if (cmd->nextrefsyms != 0)
2199 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2202 for (i = 0; i < cmd->nextrefsyms; i++)
2205 unsigned char raw[4];
2206 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2208 /* Fields isym and flags are written as bit-fields, thus we need
2209 a specific processing for endianness. */
2211 if (bfd_big_endian (abfd))
2213 v = ((ref->isym & 0xffffff) << 8);
2214 v |= ref->flags & 0xff;
2218 v = ref->isym & 0xffffff;
2219 v |= ((ref->flags & 0xff) << 24);
2222 bfd_h_put_32 (abfd, v, raw);
2223 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2229 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2233 struct mach_o_dysymtab_command_external raw;
2235 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2236 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2237 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2238 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2239 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2240 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2241 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2242 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2243 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2244 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2245 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2246 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2247 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2248 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2249 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2250 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2251 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2252 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2254 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2262 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
2264 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
2266 /* Just leave debug symbols where they are (pretend they are local, and
2267 then they will just be sorted on position). */
2268 if (s->n_type & BFD_MACH_O_N_STAB)
2271 /* Local (we should never see an undefined local AFAICT). */
2272 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
2275 /* Common symbols look like undefined externs. */
2276 if (mtyp == BFD_MACH_O_N_UNDF)
2279 /* A defined non-local, non-debug symbol. */
2284 bfd_mach_o_cf_symbols (const void *a, const void *b)
2286 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2287 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2288 unsigned int soa, sob;
2290 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2291 sob = bfd_mach_o_primary_symbol_sort_key (sb);
2298 /* If it's local or stab, just preserve the input order. */
2301 if (sa->symbol.udata.i < sb->symbol.udata.i)
2303 if (sa->symbol.udata.i > sb->symbol.udata.i)
2306 /* This is probably an error. */
2310 /* The second sort key is name. */
2311 return strcmp (sa->symbol.name, sb->symbol.name);
2314 /* Process the symbols.
2316 This should be OK for single-module files - but it is not likely to work
2317 for multi-module shared libraries.
2319 (a) If the application has not filled in the relevant mach-o fields, make
2322 (b) Order them, like this:
2325 ( ii) external defined
2327 (iii) external undefined/common
2334 bfd_mach_o_mangle_symbols (bfd *abfd)
2337 asymbol **symbols = bfd_get_outsymbols (abfd);
2339 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2342 for (i = 0; i < bfd_get_symcount (abfd); i++)
2344 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2346 /* We use this value, which is out-of-range as a symbol index, to signal
2347 that the mach-o-specific data are not filled in and need to be created
2348 from the bfd values. It is much preferable for the application to do
2349 this, since more meaningful diagnostics can be made that way. */
2351 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
2353 /* No symbol information has been set - therefore determine
2354 it from the bfd symbol flags/info. */
2355 if (s->symbol.section == bfd_abs_section_ptr)
2356 s->n_type = BFD_MACH_O_N_ABS;
2357 else if (s->symbol.section == bfd_und_section_ptr)
2359 s->n_type = BFD_MACH_O_N_UNDF;
2360 if (s->symbol.flags & BSF_WEAK)
2361 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
2362 /* mach-o automatically makes undefined symbols extern. */
2363 s->n_type |= BFD_MACH_O_N_EXT;
2364 s->symbol.flags |= BSF_GLOBAL;
2366 else if (s->symbol.section == bfd_com_section_ptr)
2368 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2369 s->symbol.flags |= BSF_GLOBAL;
2372 s->n_type = BFD_MACH_O_N_SECT;
2374 if (s->symbol.flags & BSF_GLOBAL)
2375 s->n_type |= BFD_MACH_O_N_EXT;
2378 /* Put the section index in, where required. */
2379 if ((s->symbol.section != bfd_abs_section_ptr
2380 && s->symbol.section != bfd_und_section_ptr
2381 && s->symbol.section != bfd_com_section_ptr)
2382 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2383 && s->symbol.name == NULL))
2384 s->n_sect = s->symbol.section->output_section->target_index;
2386 /* Number to preserve order for local and debug syms. */
2387 s->symbol.udata.i = i;
2390 /* Sort the symbols. */
2391 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2392 sizeof (asymbol *), bfd_mach_o_cf_symbols);
2394 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2396 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2397 s->symbol.udata.i = i; /* renumber. */
2403 /* We build a flat table of sections, which can be re-ordered if necessary.
2404 Fill in the section number and other mach-o-specific data. */
2407 bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2410 unsigned target_index;
2413 nsect = bfd_count_sections (abfd);
2415 /* Don't do it if it's already set - assume the application knows what it's
2417 if (mdata->nsects == nsect
2418 && (mdata->nsects == 0 || mdata->sections != NULL))
2421 /* We need to check that this can be done... */
2424 _bfd_error_handler (_("mach-o: there are too many sections (%u)"
2425 " maximum is 255,\n"), nsect);
2429 mdata->nsects = nsect;
2430 mdata->sections = bfd_alloc2 (abfd,
2431 mdata->nsects, sizeof (bfd_mach_o_section *));
2432 if (mdata->sections == NULL)
2435 /* Create Mach-O sections.
2436 Section type, attribute and align should have been set when the
2437 section was created - either read in or specified. */
2439 for (sec = abfd->sections; sec; sec = sec->next)
2441 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2442 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2444 mdata->sections[target_index] = msect;
2446 msect->addr = bfd_get_section_vma (abfd, sec);
2447 msect->size = bfd_get_section_size (sec);
2449 /* Use the largest alignment set, in case it was bumped after the
2450 section was created. */
2451 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2454 sec->target_index = ++target_index;
2461 bfd_mach_o_write_contents (bfd *abfd)
2463 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2464 bfd_mach_o_load_command *cmd;
2465 bfd_mach_o_symtab_command *symtab = NULL;
2466 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2467 bfd_mach_o_segment_command *linkedit = NULL;
2469 /* Make the commands, if not already present. */
2470 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2472 abfd->output_has_begun = TRUE;
2474 /* Write the header. */
2475 if (!bfd_mach_o_write_header (abfd, &mdata->header))
2478 /* First pass: allocate the linkedit segment. */
2479 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2482 case BFD_MACH_O_LC_SEGMENT_64:
2483 case BFD_MACH_O_LC_SEGMENT:
2484 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2485 linkedit = &cmd->command.segment;
2487 case BFD_MACH_O_LC_SYMTAB:
2488 symtab = &cmd->command.symtab;
2490 case BFD_MACH_O_LC_DYSYMTAB:
2491 dysymtab = &cmd->command.dysymtab;
2493 case BFD_MACH_O_LC_DYLD_INFO:
2495 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2497 if (di->rebase_size != 0)
2499 di->rebase_off = mdata->filelen;
2500 mdata->filelen += di->rebase_size;
2502 if (di->bind_size != 0)
2504 di->bind_off = mdata->filelen;
2505 mdata->filelen += di->bind_size;
2507 if (di->weak_bind_size != 0)
2509 di->weak_bind_off = mdata->filelen;
2510 mdata->filelen += di->weak_bind_size;
2512 if (di->lazy_bind_size != 0)
2514 di->lazy_bind_off = mdata->filelen;
2515 mdata->filelen += di->lazy_bind_size;
2517 if (di->export_size != 0)
2519 di->export_off = mdata->filelen;
2520 mdata->filelen += di->export_size;
2524 case BFD_MACH_O_LC_LOAD_DYLIB:
2525 case BFD_MACH_O_LC_LOAD_DYLINKER:
2526 case BFD_MACH_O_LC_MAIN:
2527 /* Nothing to do. */
2531 (_("unable to allocate data for load command %#x"),
2536 /* Specially handle symtab and dysymtab. */
2538 /* Pre-allocate the symbol table (but not the string table). The reason
2539 is that the dysymtab is after the symbol table but before the string
2540 table (required by the native strip tool). */
2543 unsigned int symlen;
2544 unsigned int wide = bfd_mach_o_wide_p (abfd);
2546 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2548 /* Align for symbols. */
2549 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2550 symtab->symoff = mdata->filelen;
2552 symtab->nsyms = bfd_get_symcount (abfd);
2553 mdata->filelen += symtab->nsyms * symlen;
2556 /* Build the dysymtab. */
2557 if (dysymtab != NULL)
2558 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2561 /* Write symtab and strtab. */
2563 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2566 /* Adjust linkedit size. */
2567 if (linkedit != NULL)
2569 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2571 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2572 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2573 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2575 linkedit->initprot = BFD_MACH_O_PROT_READ;
2576 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2577 | BFD_MACH_O_PROT_EXECUTE;
2580 /* Second pass: write commands. */
2581 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2583 struct mach_o_load_command_external raw;
2584 unsigned long typeflag;
2586 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
2588 bfd_h_put_32 (abfd, typeflag, raw.cmd);
2589 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
2591 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
2592 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
2597 case BFD_MACH_O_LC_SEGMENT:
2598 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
2601 case BFD_MACH_O_LC_SEGMENT_64:
2602 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
2605 case BFD_MACH_O_LC_SYMTAB:
2606 if (!bfd_mach_o_write_symtab (abfd, cmd))
2609 case BFD_MACH_O_LC_DYSYMTAB:
2610 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
2613 case BFD_MACH_O_LC_THREAD:
2614 case BFD_MACH_O_LC_UNIXTHREAD:
2615 if (!bfd_mach_o_write_thread (abfd, cmd))
2618 case BFD_MACH_O_LC_LOAD_DYLIB:
2619 if (!bfd_mach_o_write_dylib (abfd, cmd))
2622 case BFD_MACH_O_LC_LOAD_DYLINKER:
2623 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2626 case BFD_MACH_O_LC_MAIN:
2627 if (!bfd_mach_o_write_main (abfd, cmd))
2630 case BFD_MACH_O_LC_DYLD_INFO:
2631 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2636 (_("unable to write unknown load command %#x"),
2646 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
2647 bfd_mach_o_section *s)
2649 if (seg->sect_head == NULL)
2652 seg->sect_tail->next = s;
2656 /* Create section Mach-O flags from BFD flags. */
2659 bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2663 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2665 /* Create default flags. */
2666 bfd_flags = bfd_get_section_flags (abfd, sec);
2667 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2668 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2669 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2670 | BFD_MACH_O_S_REGULAR;
2671 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2672 s->flags = BFD_MACH_O_S_ZEROFILL;
2673 else if (bfd_flags & SEC_DEBUGGING)
2674 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2676 s->flags = BFD_MACH_O_S_REGULAR;
2680 bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2682 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2686 seg->fileoff = mdata->filelen;
2687 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2688 | BFD_MACH_O_PROT_EXECUTE;
2689 seg->maxprot = seg->initprot;
2691 /* Append sections to the segment.
2693 This is a little tedious, we have to honor the need to account zerofill
2694 sections after all the rest. This forces us to do the calculation of
2695 total vmsize in three passes so that any alignment increments are
2696 properly accounted. */
2697 for (i = 0; i < mdata->nsects; ++i)
2699 bfd_mach_o_section *s = mdata->sections[i];
2700 asection *sec = s->bfdsection;
2702 /* Although we account for zerofill section sizes in vm order, they are
2703 placed in the file in source sequence. */
2704 bfd_mach_o_append_section_to_segment (seg, s);
2707 /* Zerofill sections have zero file size & offset, the only content
2708 written to the file is the symbols. */
2709 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2710 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2711 == BFD_MACH_O_S_GB_ZEROFILL))
2714 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2715 sections, even those with zero size. */
2718 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2719 seg->vmsize += s->size;
2721 /* MH_OBJECT files have unaligned content. */
2724 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2725 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2727 seg->filesize += s->size;
2729 /* The system tools write even zero-sized sections with an offset
2730 field set to the current file position. */
2731 s->offset = mdata->filelen;
2734 sec->filepos = s->offset;
2735 mdata->filelen += s->size;
2738 /* Now pass through again, for zerofill, only now we just update the
2739 vmsize, and then for zerofill_GB. */
2740 for (j = 0; j < 2; j++)
2745 stype = BFD_MACH_O_S_ZEROFILL;
2747 stype = BFD_MACH_O_S_GB_ZEROFILL;
2749 for (i = 0; i < mdata->nsects; ++i)
2751 bfd_mach_o_section *s = mdata->sections[i];
2753 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2758 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2759 seg->vmsize += s->size;
2764 /* Allocate space for the relocations. */
2765 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2767 for (i = 0; i < mdata->nsects; ++i)
2769 bfd_mach_o_section *ms = mdata->sections[i];
2770 asection *sec = ms->bfdsection;
2772 ms->nreloc = sec->reloc_count;
2773 if (ms->nreloc == 0)
2775 /* Clear nreloc and reloff if there is no relocs. */
2779 sec->rel_filepos = mdata->filelen;
2780 ms->reloff = sec->rel_filepos;
2781 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2788 bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2790 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2792 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2794 bfd_mach_o_section *s;
2798 seg->fileoff = mdata->filelen;
2803 /* Append sections to the segment. We assume they are properly ordered
2804 by vma (but we check that). */
2806 for (i = 0; i < mdata->nsects; ++i)
2808 s = mdata->sections[i];
2810 /* Consider only sections for this segment. */
2811 if (strcmp (seg->segname, s->segname) != 0)
2814 bfd_mach_o_append_section_to_segment (seg, s);
2819 /* xgettext:c-format */
2820 (_("section address (%#" PRIx64 ") "
2821 "below start of segment (%#" PRIx64 ")"),
2822 (uint64_t) s->addr, (uint64_t) vma);
2826 vma = s->addr + s->size;
2829 /* Set segment file offset: make it page aligned. */
2830 vma = seg->sect_head->addr;
2831 seg->vmaddr = vma & ~pagemask;
2832 if ((mdata->filelen & pagemask) > (vma & pagemask))
2833 mdata->filelen += pagemask + 1;
2834 seg->fileoff = mdata->filelen & ~pagemask;
2835 mdata->filelen = seg->fileoff + (vma & pagemask);
2837 /* Set section file offset. */
2838 for (s = seg->sect_head; s != NULL; s = s->next)
2840 asection *sec = s->bfdsection;
2841 flagword flags = bfd_get_section_flags (abfd, sec);
2843 /* Adjust segment size. */
2844 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2845 seg->vmsize += s->size;
2847 /* File offset and length. */
2848 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2850 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2851 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2852 != BFD_MACH_O_S_GB_ZEROFILL))
2854 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2856 s->offset = mdata->filelen;
2857 s->bfdsection->filepos = s->offset;
2859 seg->filesize += s->size;
2860 mdata->filelen += s->size;
2865 s->bfdsection->filepos = 0;
2868 /* Set protection. */
2869 if (flags & SEC_LOAD)
2871 if (flags & SEC_CODE)
2872 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
2873 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
2874 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
2877 /* Relocs shouldn't appear in non-object files. */
2878 if (s->bfdsection->reloc_count != 0)
2883 if (seg->initprot != 0)
2884 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2885 | BFD_MACH_O_PROT_EXECUTE;
2889 /* Round segment size (and file size). */
2890 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
2891 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
2892 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
2897 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
2898 fields in header. */
2901 bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
2903 unsigned wide = mach_o_wide_p (&mdata->header);
2904 unsigned int hdrlen;
2906 bfd_mach_o_load_command *cmd;
2908 bfd_boolean ret = TRUE;
2910 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2911 align = wide ? 8 - 1 : 4 - 1;
2913 mdata->header.ncmds = 0;
2915 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
2917 mdata->header.ncmds++;
2918 cmd->offset = offset;
2922 case BFD_MACH_O_LC_SEGMENT_64:
2923 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2924 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
2926 case BFD_MACH_O_LC_SEGMENT:
2927 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2928 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
2930 case BFD_MACH_O_LC_SYMTAB:
2931 cmd->len = sizeof (struct mach_o_symtab_command_external)
2932 + BFD_MACH_O_LC_SIZE;
2934 case BFD_MACH_O_LC_DYSYMTAB:
2935 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2936 + BFD_MACH_O_LC_SIZE;
2938 case BFD_MACH_O_LC_LOAD_DYLIB:
2939 cmd->len = sizeof (struct mach_o_dylib_command_external)
2940 + BFD_MACH_O_LC_SIZE;
2941 cmd->command.dylib.name_offset = cmd->len;
2942 cmd->len += strlen (cmd->command.dylib.name_str);
2943 cmd->len = (cmd->len + align) & ~align;
2945 case BFD_MACH_O_LC_LOAD_DYLINKER:
2946 cmd->len = sizeof (struct mach_o_str_command_external)
2947 + BFD_MACH_O_LC_SIZE;
2948 cmd->command.dylinker.name_offset = cmd->len;
2949 cmd->len += strlen (cmd->command.dylinker.name_str);
2950 cmd->len = (cmd->len + align) & ~align;
2952 case BFD_MACH_O_LC_MAIN:
2953 cmd->len = sizeof (struct mach_o_entry_point_command_external)
2954 + BFD_MACH_O_LC_SIZE;
2956 case BFD_MACH_O_LC_DYLD_INFO:
2957 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
2958 + BFD_MACH_O_LC_SIZE;
2962 (_("unable to layout unknown load command %#x"),
2968 BFD_ASSERT (cmd->len % (align + 1) == 0);
2971 mdata->header.sizeofcmds = offset - hdrlen;
2972 mdata->filelen = offset;
2977 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
2981 bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
2982 bfd_mach_o_load_command *cmd,
2983 const char *segname, unsigned int nbr_sect)
2985 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2986 unsigned wide = mach_o_wide_p (&mdata->header);
2988 /* Init segment command. */
2989 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
2990 cmd->type_required = FALSE;
2992 strcpy (seg->segname, segname);
2993 seg->nsects = nbr_sect;
3003 seg->sect_head = NULL;
3004 seg->sect_tail = NULL;
3007 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
3008 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
3009 and copy functionality. */
3012 bfd_mach_o_build_commands (bfd *abfd)
3014 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3015 unsigned wide = mach_o_wide_p (&mdata->header);
3016 unsigned int nbr_segcmd = 0;
3017 bfd_mach_o_load_command *commands;
3018 unsigned int nbr_commands;
3019 int symtab_idx = -1;
3020 int dysymtab_idx = -1;
3024 /* Return now if already built. */
3025 if (mdata->header.ncmds != 0)
3028 /* Fill in the file type, if not already set. */
3029 if (mdata->header.filetype == 0)
3031 if (abfd->flags & EXEC_P)
3032 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
3033 else if (abfd->flags & DYNAMIC)
3034 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
3036 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
3039 /* If hasn't already been done, flatten sections list, and sort
3040 if/when required. Must be done before the symbol table is adjusted,
3041 since that depends on properly numbered sections. */
3042 if (mdata->nsects == 0 || mdata->sections == NULL)
3043 if (! bfd_mach_o_mangle_sections (abfd, mdata))
3046 /* Order the symbol table, fill-in/check mach-o specific fields and
3047 partition out any indirect symbols. */
3048 if (!bfd_mach_o_mangle_symbols (abfd))
3051 /* Segment commands. */
3052 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3054 /* Only one segment for all the sections. But the segment is
3055 optional if there is no sections. */
3056 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
3060 bfd_mach_o_section *prev_sect = NULL;
3062 /* One pagezero segment and one linkedit segment. */
3065 /* Create one segment for associated segment name in sections.
3066 Assume that sections with the same segment name are consecutive. */
3067 for (i = 0; i < mdata->nsects; i++)
3069 bfd_mach_o_section *this_sect = mdata->sections[i];
3071 if (prev_sect == NULL
3072 || strcmp (prev_sect->segname, this_sect->segname) != 0)
3075 prev_sect = this_sect;
3080 nbr_commands = nbr_segcmd;
3082 /* One command for the symbol table (only if there are symbols. */
3083 if (bfd_get_symcount (abfd) > 0)
3084 symtab_idx = nbr_commands++;
3087 This is a rather crude test for whether we should build a dysymtab. */
3088 if (bfd_mach_o_should_emit_dysymtab ()
3089 && bfd_get_symcount (abfd))
3091 /* If there should be a case where a dysymtab could be emitted without
3092 a symtab (seems improbable), this would need amending. */
3093 dysymtab_idx = nbr_commands++;
3096 /* Add an entry point command. */
3097 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3098 && bfd_get_start_address (abfd) != 0)
3099 main_idx = nbr_commands++;
3101 /* Well, we must have a header, at least. */
3102 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3104 /* A bit unusual, but no content is valid;
3105 as -n empty.s -o empty.o */
3106 if (nbr_commands == 0)
3108 /* Layout commands (well none...) and set headers command fields. */
3109 return bfd_mach_o_layout_commands (mdata);
3112 /* Create commands for segments (and symtabs), prepend them. */
3113 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3114 if (commands == NULL)
3116 for (i = 0; i < nbr_commands - 1; i++)
3117 commands[i].next = &commands[i + 1];
3118 commands[nbr_commands - 1].next = mdata->first_command;
3119 if (mdata->first_command == NULL)
3120 mdata->last_command = &commands[nbr_commands - 1];
3121 mdata->first_command = &commands[0];
3123 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3125 /* For object file, there is only one segment. */
3126 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3128 else if (nbr_segcmd != 0)
3130 bfd_mach_o_load_command *cmd;
3132 BFD_ASSERT (nbr_segcmd >= 2);
3136 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3138 /* Segments from sections. */
3140 for (i = 0; i < mdata->nsects;)
3142 const char *segname = mdata->sections[i]->segname;
3143 unsigned int nbr_sect = 1;
3145 /* Count number of sections for this segment. */
3146 for (i++; i < mdata->nsects; i++)
3147 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3152 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3157 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
3160 if (symtab_idx >= 0)
3162 /* Init symtab command. */
3163 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
3165 cmd->type = BFD_MACH_O_LC_SYMTAB;
3166 cmd->type_required = FALSE;
3169 /* If required, setup symtab command, see comment above about the quality
3171 if (dysymtab_idx >= 0)
3173 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
3175 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
3176 cmd->type_required = FALSE;
3179 /* Create the main command. */
3182 bfd_mach_o_load_command *cmd = &commands[main_idx];
3184 cmd->type = BFD_MACH_O_LC_MAIN;
3185 cmd->type_required = TRUE;
3187 cmd->command.main.entryoff = 0;
3188 cmd->command.main.stacksize = 0;
3191 /* Layout commands. */
3192 if (! bfd_mach_o_layout_commands (mdata))
3195 /* So, now we have sized the commands and the filelen set to that.
3196 Now we can build the segment command and set the section file offsets. */
3197 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3199 for (i = 0; i < nbr_segcmd; i++)
3200 if (!bfd_mach_o_build_obj_seg_command
3201 (abfd, &commands[i].command.segment))
3208 /* Skip pagezero and linkedit segments. */
3209 for (i = 1; i < nbr_segcmd - 1; i++)
3211 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3213 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3216 if (seg->vmaddr + seg->vmsize > maxvma)
3217 maxvma = seg->vmaddr + seg->vmsize;
3220 /* Set the size of __PAGEZERO. */
3221 commands[0].command.segment.vmsize =
3222 commands[1].command.segment.vmaddr;
3224 /* Set the vma and fileoff of __LINKEDIT. */
3225 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3226 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3228 /* Set entry point (once segments have been laid out). */
3230 commands[main_idx].command.main.entryoff =
3231 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3237 /* Set the contents of a section. */
3240 bfd_mach_o_set_section_contents (bfd *abfd,
3242 const void * location,
3244 bfd_size_type count)
3248 /* Trying to write the first section contents will trigger the creation of
3249 the load commands if they are not already present. */
3250 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
3256 pos = section->filepos + offset;
3257 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3258 || bfd_bwrite (location, count, abfd) != count)
3265 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
3266 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3271 /* Make an empty symbol. This is required only because
3272 bfd_make_section_anyway wants to create a symbol for the section. */
3275 bfd_mach_o_make_empty_symbol (bfd *abfd)
3277 asymbol *new_symbol;
3279 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3280 if (new_symbol == NULL)
3282 new_symbol->the_bfd = abfd;
3283 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
3288 bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header)
3290 struct mach_o_header_external raw;
3292 bfd_vma (*get32) (const void *) = NULL;
3294 /* Just read the magic number. */
3295 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
3296 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
3299 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3301 header->byteorder = BFD_ENDIAN_BIG;
3302 header->magic = BFD_MACH_O_MH_MAGIC;
3303 header->version = 1;
3306 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3308 header->byteorder = BFD_ENDIAN_LITTLE;
3309 header->magic = BFD_MACH_O_MH_MAGIC;
3310 header->version = 1;
3313 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3315 header->byteorder = BFD_ENDIAN_BIG;
3316 header->magic = BFD_MACH_O_MH_MAGIC_64;
3317 header->version = 2;
3320 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3322 header->byteorder = BFD_ENDIAN_LITTLE;
3323 header->magic = BFD_MACH_O_MH_MAGIC_64;
3324 header->version = 2;
3329 header->byteorder = BFD_ENDIAN_UNKNOWN;
3333 /* Once the size of the header is known, read the full header. */
3334 size = mach_o_wide_p (header) ?
3335 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3337 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
3338 || bfd_bread (&raw, size, abfd) != size)
3341 header->cputype = (*get32) (raw.cputype);
3342 header->cpusubtype = (*get32) (raw.cpusubtype);
3343 header->filetype = (*get32) (raw.filetype);
3344 header->ncmds = (*get32) (raw.ncmds);
3345 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3346 header->flags = (*get32) (raw.flags);
3348 if (mach_o_wide_p (header))
3349 header->reserved = (*get32) (raw.reserved);
3351 header->reserved = 0;
3357 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3359 bfd_mach_o_section *s;
3360 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
3362 s = bfd_mach_o_get_mach_o_section (sec);
3366 static const mach_o_section_name_xlat * xlat;
3368 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3371 sec->used_by_bfd = s;
3372 s->bfdsection = sec;
3374 /* Create the Darwin seg/sect name pair from the bfd name.
3375 If this is a canonical name for which a specific paiting exists
3376 there will also be defined flags, type, attribute and alignment
3378 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3381 s->flags = xlat->macho_sectype | xlat->macho_secattr;
3382 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
3384 (void) bfd_set_section_alignment (abfd, sec, s->align);
3385 bfd_flags = bfd_get_section_flags (abfd, sec);
3386 if (bfd_flags == SEC_NO_FLAGS)
3387 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3390 /* Create default flags. */
3391 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
3394 return _bfd_generic_new_section_hook (abfd, sec);
3398 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3402 bfd_mach_o_section *section;
3404 flags = bfd_get_section_flags (abfd, sec);
3405 section = bfd_mach_o_get_mach_o_section (sec);
3407 /* TODO: see if we should use the xlat system for doing this by
3408 preference and fall back to this for unknown sections. */
3410 if (flags == SEC_NO_FLAGS)
3412 /* Try to guess flags. */
3413 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3414 flags = SEC_DEBUGGING;
3418 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3419 != BFD_MACH_O_S_ZEROFILL)
3422 if (prot & BFD_MACH_O_PROT_EXECUTE)
3424 if (prot & BFD_MACH_O_PROT_WRITE)
3426 else if (prot & BFD_MACH_O_PROT_READ)
3427 flags |= SEC_READONLY;
3433 if ((flags & SEC_DEBUGGING) == 0)
3437 if (section->offset != 0)
3438 flags |= SEC_HAS_CONTENTS;
3439 if (section->nreloc != 0)
3442 bfd_set_section_flags (abfd, sec, flags);
3444 sec->vma = section->addr;
3445 sec->lma = section->addr;
3446 sec->size = section->size;
3447 sec->filepos = section->offset;
3448 sec->alignment_power = section->align;
3449 sec->segment_mark = 0;
3450 sec->reloc_count = section->nreloc;
3451 sec->rel_filepos = section->reloff;
3455 bfd_mach_o_make_bfd_section (bfd *abfd,
3456 const unsigned char *segname,
3457 const unsigned char *sectname)
3462 bfd_mach_o_convert_section_name_to_bfd
3463 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3467 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3471 bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot)
3473 struct mach_o_section_32_external raw;
3475 bfd_mach_o_section *section;
3477 if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3478 != BFD_MACH_O_SECTION_SIZE)
3481 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3485 section = bfd_mach_o_get_mach_o_section (sec);
3486 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3487 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3488 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3489 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3490 section->addr = bfd_h_get_32 (abfd, raw.addr);
3491 section->size = bfd_h_get_32 (abfd, raw.size);
3492 section->offset = bfd_h_get_32 (abfd, raw.offset);
3493 section->align = bfd_h_get_32 (abfd, raw.align);
3494 /* PR 17512: file: 0017eb76. */
3495 if (section->align > 64)
3498 (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, "
3499 "using 32 instead"), section->align);
3500 section->align = 32;
3502 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3503 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3504 section->flags = bfd_h_get_32 (abfd, raw.flags);
3505 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3506 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3507 section->reserved3 = 0;
3509 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3515 bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot)
3517 struct mach_o_section_64_external raw;
3519 bfd_mach_o_section *section;
3521 if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3522 != BFD_MACH_O_SECTION_64_SIZE)
3525 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3529 section = bfd_mach_o_get_mach_o_section (sec);
3530 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3531 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3532 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3533 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3534 section->addr = bfd_h_get_64 (abfd, raw.addr);
3535 section->size = bfd_h_get_64 (abfd, raw.size);
3536 section->offset = bfd_h_get_32 (abfd, raw.offset);
3537 section->align = bfd_h_get_32 (abfd, raw.align);
3538 if (section->align > 64)
3541 (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, "
3542 "using 32 instead"), section->align);
3543 section->align = 32;
3545 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3546 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3547 section->flags = bfd_h_get_32 (abfd, raw.flags);
3548 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3549 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3550 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3552 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3558 bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide)
3561 return bfd_mach_o_read_section_64 (abfd, prot);
3563 return bfd_mach_o_read_section_32 (abfd, prot);
3567 bfd_mach_o_read_symtab_symbol (bfd *abfd,
3568 bfd_mach_o_symtab_command *sym,
3569 bfd_mach_o_asymbol *s,
3572 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3573 unsigned int wide = mach_o_wide_p (&mdata->header);
3574 unsigned int symwidth =
3575 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
3576 unsigned int symoff = sym->symoff + (i * symwidth);
3577 struct mach_o_nlist_64_external raw;
3578 unsigned char type = -1;
3579 unsigned char section = -1;
3581 symvalue value = -1;
3582 unsigned long stroff = -1;
3583 unsigned int symtype = -1;
3585 BFD_ASSERT (sym->strtab != NULL);
3587 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
3588 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3591 /* xgettext:c-format */
3592 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"),
3597 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3598 type = bfd_h_get_8 (abfd, raw.n_type);
3599 symtype = type & BFD_MACH_O_N_TYPE;
3600 section = bfd_h_get_8 (abfd, raw.n_sect);
3601 desc = bfd_h_get_16 (abfd, raw.n_desc);
3603 value = bfd_h_get_64 (abfd, raw.n_value);
3605 value = bfd_h_get_32 (abfd, raw.n_value);
3607 if (stroff >= sym->strsize)
3610 /* xgettext:c-format */
3611 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"),
3617 s->symbol.the_bfd = abfd;
3618 s->symbol.name = sym->strtab + stroff;
3619 s->symbol.value = value;
3620 s->symbol.flags = 0x0;
3621 s->symbol.udata.i = i;
3623 s->n_sect = section;
3626 if (type & BFD_MACH_O_N_STAB)
3628 s->symbol.flags |= BSF_DEBUGGING;
3629 s->symbol.section = bfd_und_section_ptr;
3641 if ((section > 0) && (section <= mdata->nsects))
3643 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3645 s->symbol.value - mdata->sections[section - 1]->addr;
3652 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
3653 s->symbol.flags |= BSF_GLOBAL;
3655 s->symbol.flags |= BSF_LOCAL;
3659 case BFD_MACH_O_N_UNDF:
3660 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3661 && s->symbol.value != 0)
3663 /* A common symbol. */
3664 s->symbol.section = bfd_com_section_ptr;
3665 s->symbol.flags = BSF_NO_FLAGS;
3669 s->symbol.section = bfd_und_section_ptr;
3670 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3671 s->symbol.flags |= BSF_WEAK;
3674 case BFD_MACH_O_N_PBUD:
3675 s->symbol.section = bfd_und_section_ptr;
3677 case BFD_MACH_O_N_ABS:
3678 s->symbol.section = bfd_abs_section_ptr;
3680 case BFD_MACH_O_N_SECT:
3681 if ((section > 0) && (section <= mdata->nsects))
3683 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3685 s->symbol.value - mdata->sections[section - 1]->addr;
3689 /* Mach-O uses 0 to mean "no section"; not an error. */
3693 /* xgettext:c-format */
3694 (_("bfd_mach_o_read_symtab_symbol: "
3695 "symbol \"%s\" specified invalid section %d (max %lu): "
3696 "setting to undefined"),
3697 s->symbol.name, section, mdata->nsects);
3699 s->symbol.section = bfd_und_section_ptr;
3702 case BFD_MACH_O_N_INDR:
3703 /* FIXME: we don't follow the BFD convention as this indirect symbol
3704 won't be followed by the referenced one. This looks harmless
3705 unless we start using the linker. */
3706 s->symbol.flags |= BSF_INDIRECT;
3707 s->symbol.section = bfd_ind_section_ptr;
3708 s->symbol.value = 0;
3712 /* xgettext:c-format */
3713 (_("bfd_mach_o_read_symtab_symbol: "
3714 "symbol \"%s\" specified invalid type field 0x%x: "
3715 "setting to undefined"), s->symbol.name, symtype);
3716 s->symbol.section = bfd_und_section_ptr;
3725 bfd_mach_o_read_symtab_strtab (bfd *abfd)
3727 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3728 bfd_mach_o_symtab_command *sym = mdata->symtab;
3730 /* Fail if there is no symtab. */
3734 /* Success if already loaded. */
3738 if (abfd->flags & BFD_IN_MEMORY)
3740 struct bfd_in_memory *b;
3742 b = (struct bfd_in_memory *) abfd->iostream;
3744 if ((sym->stroff + sym->strsize) > b->size)
3746 bfd_set_error (bfd_error_file_truncated);
3749 sym->strtab = (char *) b->buffer + sym->stroff;
3753 /* See PR 21840 for a reproducer. */
3754 if ((sym->strsize + 1) == 0)
3756 sym->strtab = bfd_alloc (abfd, sym->strsize + 1);
3757 if (sym->strtab == NULL)
3760 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
3761 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3763 /* PR 17512: file: 10888-1609-0.004. */
3764 bfd_release (abfd, sym->strtab);
3766 bfd_set_error (bfd_error_file_truncated);
3769 /* Zero terminate the string table. */
3770 sym->strtab[sym->strsize] = 0;
3777 bfd_mach_o_read_symtab_symbols (bfd *abfd)
3779 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3780 bfd_mach_o_symtab_command *sym = mdata->symtab;
3783 if (sym == NULL || sym->symbols)
3784 /* Return now if there are no symbols or if already loaded. */
3787 sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol));
3788 if (sym->symbols == NULL)
3790 _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: "
3791 "unable to allocate memory for symbols"));
3796 if (!bfd_mach_o_read_symtab_strtab (abfd))
3799 for (i = 0; i < sym->nsyms; i++)
3800 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3806 bfd_release (abfd, sym->symbols);
3807 sym->symbols = NULL;
3813 bfd_mach_o_i386_flavour_string (unsigned int flavour)
3815 switch ((int) flavour)
3817 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3818 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3819 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3820 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3821 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3822 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3823 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3824 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3825 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3826 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3827 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3828 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
3829 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3830 default: return "UNKNOWN";
3835 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3837 switch ((int) flavour)
3839 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3840 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3841 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3842 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3843 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3844 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3845 default: return "UNKNOWN";
3850 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3852 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
3853 struct mach_o_str_command_external raw;
3854 unsigned int nameoff;
3855 unsigned int namelen;
3857 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3860 nameoff = bfd_h_get_32 (abfd, raw.str);
3862 cmd->name_offset = nameoff;
3863 namelen = command->len - nameoff;
3864 nameoff += command->offset;
3865 cmd->name_str = bfd_alloc (abfd, namelen);
3866 if (cmd->name_str == NULL)
3868 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3869 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3875 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3877 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3878 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
3879 struct mach_o_dylib_command_external raw;
3880 unsigned int nameoff;
3881 unsigned int namelen;
3883 switch (command->type)
3885 case BFD_MACH_O_LC_LOAD_DYLIB:
3886 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3887 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3888 case BFD_MACH_O_LC_ID_DYLIB:
3889 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3890 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3897 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3900 nameoff = bfd_h_get_32 (abfd, raw.name);
3901 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3902 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3903 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3905 cmd->name_offset = command->offset + nameoff;
3906 namelen = command->len - nameoff;
3907 cmd->name_str = bfd_alloc (abfd, namelen);
3908 if (cmd->name_str == NULL)
3910 if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0
3911 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3917 bfd_mach_o_read_prebound_dylib (bfd *abfd,
3918 bfd_mach_o_load_command *command)
3920 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
3921 struct mach_o_prebound_dylib_command_external raw;
3922 unsigned int nameoff;
3923 unsigned int modoff;
3924 unsigned int str_len;
3927 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3930 nameoff = bfd_h_get_32 (abfd, raw.name);
3931 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
3932 if (nameoff > command->len || modoff > command->len)
3935 str_len = command->len - sizeof (raw);
3936 str = bfd_alloc (abfd, str_len);
3939 if (bfd_bread (str, str_len, abfd) != str_len)
3942 cmd->name_offset = command->offset + nameoff;
3943 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
3944 cmd->linked_modules_offset = command->offset + modoff;
3946 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3947 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3952 bfd_mach_o_read_prebind_cksum (bfd *abfd,
3953 bfd_mach_o_load_command *command)
3955 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
3956 struct mach_o_prebind_cksum_command_external raw;
3958 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3961 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
3966 bfd_mach_o_read_twolevel_hints (bfd *abfd,
3967 bfd_mach_o_load_command *command)
3969 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
3970 struct mach_o_twolevel_hints_command_external raw;
3972 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3975 cmd->offset = bfd_get_32 (abfd, raw.offset);
3976 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
3981 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3983 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3984 struct mach_o_fvmlib_command_external raw;
3985 unsigned int nameoff;
3986 unsigned int namelen;
3988 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3991 nameoff = bfd_h_get_32 (abfd, raw.name);
3992 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3993 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3995 fvm->name_offset = command->offset + nameoff;
3996 namelen = command->len - nameoff;
3997 fvm->name_str = bfd_alloc (abfd, namelen);
3998 if (fvm->name_str == NULL)
4000 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
4001 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
4007 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
4009 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4010 bfd_mach_o_thread_command *cmd = &command->command.thread;
4011 unsigned int offset;
4012 unsigned int nflavours;
4015 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
4016 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
4018 /* Count the number of threads. */
4021 while (offset != command->len)
4023 struct mach_o_thread_command_external raw;
4025 if (offset >= command->len)
4028 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
4029 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4032 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
4036 /* Allocate threads. */
4037 cmd->flavours = bfd_alloc2
4038 (abfd, nflavours, sizeof (bfd_mach_o_thread_flavour));
4039 if (cmd->flavours == NULL)
4041 cmd->nflavours = nflavours;
4045 while (offset != command->len)
4047 struct mach_o_thread_command_external raw;
4049 if (offset >= command->len)
4052 if (nflavours >= cmd->nflavours)
4055 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
4056 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4059 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
4060 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
4061 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
4062 offset += cmd->flavours[nflavours].size + sizeof (raw);
4066 for (i = 0; i < nflavours; i++)
4069 unsigned int snamelen;
4071 const char *flavourstr;
4072 const char *prefix = "LC_THREAD";
4075 switch (mdata->header.cputype)
4077 case BFD_MACH_O_CPU_TYPE_POWERPC:
4078 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
4080 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
4082 case BFD_MACH_O_CPU_TYPE_I386:
4083 case BFD_MACH_O_CPU_TYPE_X86_64:
4085 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
4088 flavourstr = "UNKNOWN_ARCHITECTURE";
4092 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
4093 sname = bfd_alloc (abfd, snamelen);
4099 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4100 if (bfd_get_section_by_name (abfd, sname) == NULL)
4105 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
4109 bfdsec->size = cmd->flavours[i].size;
4110 bfdsec->filepos = cmd->flavours[i].offset;
4111 bfdsec->alignment_power = 0x0;
4113 cmd->section = bfdsec;
4120 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
4122 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
4123 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4125 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4128 struct mach_o_dysymtab_command_external raw;
4130 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4133 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4134 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4135 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4136 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4137 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4138 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4139 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4140 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4141 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4142 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4143 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4144 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4145 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4146 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4147 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4148 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4149 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4150 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4153 if (cmd->nmodtab != 0)
4156 int wide = bfd_mach_o_wide_p (abfd);
4157 unsigned int module_len = wide ? 56 : 52;
4160 bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module));
4161 if (cmd->dylib_module == NULL)
4164 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
4167 for (i = 0; i < cmd->nmodtab; i++)
4169 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4171 unsigned char buf[56];
4173 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4176 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4177 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4178 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4179 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4180 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4181 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4182 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4183 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4184 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4185 v = bfd_h_get_32 (abfd, buf +36);
4186 module->iinit = v & 0xffff;
4187 module->iterm = (v >> 16) & 0xffff;
4188 v = bfd_h_get_32 (abfd, buf + 40);
4189 module->ninit = v & 0xffff;
4190 module->nterm = (v >> 16) & 0xffff;
4193 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4194 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4198 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4199 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4208 cmd->dylib_toc = bfd_alloc2
4209 (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content));
4210 if (cmd->dylib_toc == NULL)
4213 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
4216 for (i = 0; i < cmd->ntoc; i++)
4218 struct mach_o_dylib_table_of_contents_external raw;
4219 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4221 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4224 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4225 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4229 if (cmd->nindirectsyms != 0)
4233 cmd->indirect_syms = bfd_alloc2
4234 (abfd, cmd->nindirectsyms, sizeof (unsigned int));
4235 if (cmd->indirect_syms == NULL)
4238 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
4241 for (i = 0; i < cmd->nindirectsyms; i++)
4243 unsigned char raw[4];
4244 unsigned int *is = &cmd->indirect_syms[i];
4246 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4249 *is = bfd_h_get_32 (abfd, raw);
4253 if (cmd->nextrefsyms != 0)
4258 cmd->ext_refs = bfd_alloc2
4259 (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference));
4260 if (cmd->ext_refs == NULL)
4263 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
4266 for (i = 0; i < cmd->nextrefsyms; i++)
4268 unsigned char raw[4];
4269 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4271 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4274 /* Fields isym and flags are written as bit-fields, thus we need
4275 a specific processing for endianness. */
4276 v = bfd_h_get_32 (abfd, raw);
4277 if (bfd_big_endian (abfd))
4279 ref->isym = (v >> 8) & 0xffffff;
4280 ref->flags = v & 0xff;
4284 ref->isym = v & 0xffffff;
4285 ref->flags = (v >> 24) & 0xff;
4290 if (mdata->dysymtab)
4292 mdata->dysymtab = cmd;
4298 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
4300 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4301 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4302 struct mach_o_symtab_command_external raw;
4304 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4306 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4309 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4310 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4311 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4312 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
4313 symtab->symbols = NULL;
4314 symtab->strtab = NULL;
4316 if (symtab->nsyms != 0)
4317 abfd->flags |= HAS_SYMS;
4321 mdata->symtab = symtab;
4326 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
4328 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
4330 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4332 if (bfd_bread (cmd->uuid, 16, abfd) != 16)
4339 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
4341 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
4342 struct mach_o_linkedit_data_command_external raw;
4344 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4347 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4348 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
4353 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
4355 bfd_mach_o_str_command *cmd = &command->command.str;
4356 struct mach_o_str_command_external raw;
4359 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4362 off = bfd_get_32 (abfd, raw.str);
4363 cmd->stroff = command->offset + off;
4364 cmd->str_len = command->len - off;
4365 cmd->str = bfd_alloc (abfd, cmd->str_len);
4366 if (cmd->str == NULL)
4368 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
4369 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
4374 static unsigned char *
4375 bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4379 buf = bfd_alloc (abfd, size);
4382 if (bfd_seek (abfd, off, SEEK_SET) != 0
4383 || bfd_bread (buf, size, abfd) != size)
4389 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4391 /* Read rebase content. */
4392 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4394 cmd->rebase_content =
4395 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4396 if (cmd->rebase_content == NULL)
4400 /* Read bind content. */
4401 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4404 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4405 if (cmd->bind_content == NULL)
4409 /* Read weak bind content. */
4410 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4412 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4413 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4414 if (cmd->weak_bind_content == NULL)
4418 /* Read lazy bind content. */
4419 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4421 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4422 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4423 if (cmd->lazy_bind_content == NULL)
4427 /* Read export content. */
4428 if (cmd->export_content == NULL && cmd->export_size != 0)
4430 cmd->export_content = bfd_mach_o_alloc_and_read
4431 (abfd, cmd->export_off, cmd->export_size);
4432 if (cmd->export_content == NULL)
4440 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
4442 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
4443 struct mach_o_dyld_info_command_external raw;
4445 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4448 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4449 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
4450 cmd->rebase_content = NULL;
4451 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4452 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
4453 cmd->bind_content = NULL;
4454 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4455 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
4456 cmd->weak_bind_content = NULL;
4457 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4458 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
4459 cmd->lazy_bind_content = NULL;
4460 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4461 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
4462 cmd->export_content = NULL;
4467 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4469 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4470 struct mach_o_version_min_command_external raw;
4473 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4476 ver = bfd_get_32 (abfd, raw.version);
4477 cmd->rel = ver >> 16;
4478 cmd->maj = ver >> 8;
4480 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4485 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4487 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4488 struct mach_o_encryption_info_command_external raw;
4490 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4493 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4494 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4495 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4500 bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command)
4502 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4503 struct mach_o_encryption_info_64_command_external raw;
4505 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4508 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4509 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4510 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4515 bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4517 bfd_mach_o_main_command *cmd = &command->command.main;
4518 struct mach_o_entry_point_command_external raw;
4520 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4523 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4524 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4529 bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4531 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4532 struct mach_o_source_version_command_external raw;
4535 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4538 ver = bfd_get_64 (abfd, raw.version);
4539 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4540 generates warnings) in case of the host doesn't support 64 bit
4542 cmd->e = ver & 0x3ff;
4544 cmd->d = ver & 0x3ff;
4546 cmd->c = ver & 0x3ff;
4548 cmd->b = ver & 0x3ff;
4550 cmd->a = ver & 0xffffff;
4555 bfd_mach_o_read_segment (bfd *abfd,
4556 bfd_mach_o_load_command *command,
4559 bfd_mach_o_segment_command *seg = &command->command.segment;
4564 struct mach_o_segment_command_64_external raw;
4566 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
4568 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4571 memcpy (seg->segname, raw.segname, 16);
4572 seg->segname[16] = '\0';
4574 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4575 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4576 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4577 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4578 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4579 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4580 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4581 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4585 struct mach_o_segment_command_32_external raw;
4587 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4589 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4592 memcpy (seg->segname, raw.segname, 16);
4593 seg->segname[16] = '\0';
4595 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4596 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4597 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4598 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4599 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4600 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4601 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4602 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4604 seg->sect_head = NULL;
4605 seg->sect_tail = NULL;
4607 for (i = 0; i < seg->nsects; i++)
4611 sec = bfd_mach_o_read_section (abfd, seg->initprot, wide);
4615 bfd_mach_o_append_section_to_segment
4616 (seg, bfd_mach_o_get_mach_o_section (sec));
4623 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
4625 return bfd_mach_o_read_segment (abfd, command, 0);
4629 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
4631 return bfd_mach_o_read_segment (abfd, command, 1);
4635 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
4637 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4638 struct mach_o_load_command_external raw;
4641 /* Read command type and length. */
4642 if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0
4643 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
4646 cmd = bfd_h_get_32 (abfd, raw.cmd);
4647 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4648 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4649 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
4651 switch (command->type)
4653 case BFD_MACH_O_LC_SEGMENT:
4654 if (!bfd_mach_o_read_segment_32 (abfd, command))
4657 case BFD_MACH_O_LC_SEGMENT_64:
4658 if (!bfd_mach_o_read_segment_64 (abfd, command))
4661 case BFD_MACH_O_LC_SYMTAB:
4662 if (!bfd_mach_o_read_symtab (abfd, command))
4665 case BFD_MACH_O_LC_SYMSEG:
4667 case BFD_MACH_O_LC_THREAD:
4668 case BFD_MACH_O_LC_UNIXTHREAD:
4669 if (!bfd_mach_o_read_thread (abfd, command))
4672 case BFD_MACH_O_LC_LOAD_DYLINKER:
4673 case BFD_MACH_O_LC_ID_DYLINKER:
4674 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
4675 if (!bfd_mach_o_read_dylinker (abfd, command))
4678 case BFD_MACH_O_LC_LOAD_DYLIB:
4679 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
4680 case BFD_MACH_O_LC_ID_DYLIB:
4681 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
4682 case BFD_MACH_O_LC_REEXPORT_DYLIB:
4683 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
4684 if (!bfd_mach_o_read_dylib (abfd, command))
4687 case BFD_MACH_O_LC_PREBOUND_DYLIB:
4688 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4691 case BFD_MACH_O_LC_LOADFVMLIB:
4692 case BFD_MACH_O_LC_IDFVMLIB:
4693 if (!bfd_mach_o_read_fvmlib (abfd, command))
4696 case BFD_MACH_O_LC_IDENT:
4697 case BFD_MACH_O_LC_FVMFILE:
4698 case BFD_MACH_O_LC_PREPAGE:
4699 case BFD_MACH_O_LC_ROUTINES:
4700 case BFD_MACH_O_LC_ROUTINES_64:
4702 case BFD_MACH_O_LC_SUB_FRAMEWORK:
4703 case BFD_MACH_O_LC_SUB_UMBRELLA:
4704 case BFD_MACH_O_LC_SUB_LIBRARY:
4705 case BFD_MACH_O_LC_SUB_CLIENT:
4706 case BFD_MACH_O_LC_RPATH:
4707 if (!bfd_mach_o_read_str (abfd, command))
4710 case BFD_MACH_O_LC_DYSYMTAB:
4711 if (!bfd_mach_o_read_dysymtab (abfd, command))
4714 case BFD_MACH_O_LC_PREBIND_CKSUM:
4715 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4718 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
4719 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4722 case BFD_MACH_O_LC_UUID:
4723 if (!bfd_mach_o_read_uuid (abfd, command))
4726 case BFD_MACH_O_LC_CODE_SIGNATURE:
4727 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
4728 case BFD_MACH_O_LC_FUNCTION_STARTS:
4729 case BFD_MACH_O_LC_DATA_IN_CODE:
4730 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
4731 case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT:
4732 if (!bfd_mach_o_read_linkedit (abfd, command))
4735 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4736 if (!bfd_mach_o_read_encryption_info (abfd, command))
4739 case BFD_MACH_O_LC_ENCRYPTION_INFO_64:
4740 if (!bfd_mach_o_read_encryption_info_64 (abfd, command))
4743 case BFD_MACH_O_LC_DYLD_INFO:
4744 if (!bfd_mach_o_read_dyld_info (abfd, command))
4747 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4748 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4749 case BFD_MACH_O_LC_VERSION_MIN_WATCHOS:
4750 if (!bfd_mach_o_read_version_min (abfd, command))
4753 case BFD_MACH_O_LC_MAIN:
4754 if (!bfd_mach_o_read_main (abfd, command))
4757 case BFD_MACH_O_LC_SOURCE_VERSION:
4758 if (!bfd_mach_o_read_source_version (abfd, command))
4763 _bfd_error_handler (_("%pB: unknown load command %#x"),
4764 abfd, command->type);
4772 bfd_mach_o_flatten_sections (bfd *abfd)
4774 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4775 bfd_mach_o_load_command *cmd;
4778 /* Count total number of sections. */
4781 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4783 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4784 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4786 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4788 mdata->nsects += seg->nsects;
4792 /* Allocate sections array. */
4793 mdata->sections = bfd_alloc2 (abfd,
4794 mdata->nsects, sizeof (bfd_mach_o_section *));
4796 /* Fill the array. */
4799 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4801 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4802 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4804 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4805 bfd_mach_o_section *sec;
4807 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4809 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4810 mdata->sections[csect++] = sec;
4816 bfd_mach_o_scan_start_address (bfd *abfd)
4818 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4819 bfd_mach_o_thread_command *thr = NULL;
4820 bfd_mach_o_load_command *cmd;
4823 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4824 if (cmd->type == BFD_MACH_O_LC_THREAD
4825 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
4827 thr = &cmd->command.thread;
4830 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
4832 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
4833 bfd_mach_o_section *text_sect = mdata->sections[0];
4837 abfd->start_address = main_cmd->entryoff
4838 + (text_sect->addr - text_sect->offset);
4843 /* An object file has no start address, so do not fail if not found. */
4847 /* FIXME: create a subtarget hook ? */
4848 for (i = 0; i < thr->nflavours; i++)
4850 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
4851 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
4853 unsigned char buf[4];
4855 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
4856 || bfd_bread (buf, 4, abfd) != 4)
4859 abfd->start_address = bfd_h_get_32 (abfd, buf);
4861 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
4862 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
4864 unsigned char buf[4];
4866 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4867 || bfd_bread (buf, 4, abfd) != 4)
4870 abfd->start_address = bfd_h_get_32 (abfd, buf);
4872 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
4873 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
4875 unsigned char buf[8];
4877 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4878 || bfd_bread (buf, 8, abfd) != 8)
4881 abfd->start_address = bfd_h_get_64 (abfd, buf);
4883 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
4884 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
4886 unsigned char buf[8];
4888 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
4889 || bfd_bread (buf, 8, abfd) != 8)
4892 abfd->start_address = bfd_h_get_64 (abfd, buf);
4900 bfd_mach_o_set_arch_mach (bfd *abfd,
4901 enum bfd_architecture arch,
4902 unsigned long machine)
4904 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4906 /* If this isn't the right architecture for this backend, and this
4907 isn't the generic backend, fail. */
4908 if (arch != bed->arch
4909 && arch != bfd_arch_unknown
4910 && bed->arch != bfd_arch_unknown)
4913 return bfd_default_set_arch_mach (abfd, arch, machine);
4917 bfd_mach_o_scan (bfd *abfd,
4918 bfd_mach_o_header *header,
4919 bfd_mach_o_data_struct *mdata)
4922 enum bfd_architecture cputype;
4923 unsigned long cpusubtype;
4924 unsigned int hdrsize;
4926 hdrsize = mach_o_wide_p (header) ?
4927 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
4929 mdata->header = *header;
4931 abfd->flags = abfd->flags & BFD_IN_MEMORY;
4932 switch (header->filetype)
4934 case BFD_MACH_O_MH_OBJECT:
4935 abfd->flags |= HAS_RELOC;
4937 case BFD_MACH_O_MH_EXECUTE:
4938 abfd->flags |= EXEC_P;
4940 case BFD_MACH_O_MH_DYLIB:
4941 case BFD_MACH_O_MH_BUNDLE:
4942 abfd->flags |= DYNAMIC;
4946 abfd->tdata.mach_o_data = mdata;
4948 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4949 &cputype, &cpusubtype);
4950 if (cputype == bfd_arch_unknown)
4953 /* xgettext:c-format */
4954 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
4955 header->cputype, header->cpusubtype);
4959 bfd_set_arch_mach (abfd, cputype, cpusubtype);
4961 if (header->ncmds != 0)
4963 bfd_mach_o_load_command *cmd;
4965 mdata->first_command = NULL;
4966 mdata->last_command = NULL;
4968 cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command));
4972 for (i = 0; i < header->ncmds; i++)
4974 bfd_mach_o_load_command *cur = &cmd[i];
4976 bfd_mach_o_append_command (abfd, cur);
4979 cur->offset = hdrsize;
4982 bfd_mach_o_load_command *prev = &cmd[i - 1];
4983 cur->offset = prev->offset + prev->len;
4986 if (!bfd_mach_o_read_command (abfd, cur))
4991 /* Sections should be flatten before scanning start address. */
4992 bfd_mach_o_flatten_sections (abfd);
4993 if (!bfd_mach_o_scan_start_address (abfd))
5000 bfd_mach_o_mkobject_init (bfd *abfd)
5002 bfd_mach_o_data_struct *mdata = NULL;
5004 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
5007 abfd->tdata.mach_o_data = mdata;
5009 mdata->header.magic = 0;
5010 mdata->header.cputype = 0;
5011 mdata->header.cpusubtype = 0;
5012 mdata->header.filetype = 0;
5013 mdata->header.ncmds = 0;
5014 mdata->header.sizeofcmds = 0;
5015 mdata->header.flags = 0;
5016 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
5017 mdata->first_command = NULL;
5018 mdata->last_command = NULL;
5020 mdata->sections = NULL;
5021 mdata->dyn_reloc_cache = NULL;
5027 bfd_mach_o_gen_mkobject (bfd *abfd)
5029 bfd_mach_o_data_struct *mdata;
5031 if (!bfd_mach_o_mkobject_init (abfd))
5034 mdata = bfd_mach_o_get_data (abfd);
5035 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
5036 mdata->header.cputype = 0;
5037 mdata->header.cpusubtype = 0;
5038 mdata->header.byteorder = abfd->xvec->byteorder;
5039 mdata->header.version = 1;
5045 bfd_mach_o_header_p (bfd *abfd,
5047 bfd_mach_o_filetype filetype,
5048 bfd_mach_o_cpu_type cputype)
5050 bfd_mach_o_header header;
5051 bfd_mach_o_data_struct *mdata;
5053 if (!bfd_mach_o_read_header (abfd, hdr_off, &header))
5056 if (! (header.byteorder == BFD_ENDIAN_BIG
5057 || header.byteorder == BFD_ENDIAN_LITTLE))
5059 _bfd_error_handler (_("unknown header byte-order value %#x"),
5064 if (! ((header.byteorder == BFD_ENDIAN_BIG
5065 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
5066 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
5067 || (header.byteorder == BFD_ENDIAN_LITTLE
5068 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
5069 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
5072 /* Check cputype and filetype.
5073 In case of wildcard, do not accept magics that are handled by existing
5077 if (header.cputype != cputype)
5083 /* Do not recognize 64 architectures if not configured for 64bit targets.
5084 This could happen only for generic targets. */
5085 if (mach_o_wide_p (&header))
5092 if (header.filetype != filetype)
5097 switch (header.filetype)
5099 case BFD_MACH_O_MH_CORE:
5100 /* Handled by core_p */
5107 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5110 mdata->hdr_offset = hdr_off;
5112 if (!bfd_mach_o_scan (abfd, &header, mdata))
5118 bfd_set_error (bfd_error_wrong_format);
5124 static const bfd_target *
5125 bfd_mach_o_gen_object_p (bfd *abfd)
5127 return bfd_mach_o_header_p (abfd, 0, 0, 0);
5130 static const bfd_target *
5131 bfd_mach_o_gen_core_p (bfd *abfd)
5133 return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0);
5136 /* Return the base address of ABFD, ie the address at which the image is
5137 mapped. The possible initial pagezero is ignored. */
5140 bfd_mach_o_get_base_address (bfd *abfd)
5142 bfd_mach_o_data_struct *mdata;
5143 bfd_mach_o_load_command *cmd;
5145 /* Check for Mach-O. */
5146 if (!bfd_mach_o_valid (abfd))
5148 mdata = bfd_mach_o_get_data (abfd);
5150 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5152 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5153 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5155 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5157 if (segcmd->initprot != 0)
5158 return segcmd->vmaddr;
5164 typedef struct mach_o_fat_archentry
5166 unsigned long cputype;
5167 unsigned long cpusubtype;
5168 unsigned long offset;
5170 unsigned long align;
5171 } mach_o_fat_archentry;
5173 typedef struct mach_o_fat_data_struct
5175 unsigned long magic;
5176 unsigned long nfat_arch;
5177 mach_o_fat_archentry *archentries;
5178 } mach_o_fat_data_struct;
5181 bfd_mach_o_fat_archive_p (bfd *abfd)
5183 mach_o_fat_data_struct *adata = NULL;
5184 struct mach_o_fat_header_external hdr;
5187 if (bfd_seek (abfd, 0, SEEK_SET) != 0
5188 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
5191 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
5195 adata->magic = bfd_getb32 (hdr.magic);
5196 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
5197 if (adata->magic != 0xcafebabe)
5199 /* Avoid matching Java bytecode files, which have the same magic number.
5200 In the Java bytecode file format this field contains the JVM version,
5201 which starts at 43.0. */
5202 if (adata->nfat_arch > 30)
5205 adata->archentries =
5206 bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry));
5207 if (adata->archentries == NULL)
5210 for (i = 0; i < adata->nfat_arch; i++)
5212 struct mach_o_fat_arch_external arch;
5213 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
5215 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5216 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5217 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5218 adata->archentries[i].size = bfd_getb32 (arch.size);
5219 adata->archentries[i].align = bfd_getb32 (arch.align);
5222 abfd->tdata.mach_o_fat_data = adata;
5228 bfd_release (abfd, adata);
5229 bfd_set_error (bfd_error_wrong_format);
5233 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5234 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5235 Set arelt_data and origin fields too. */
5238 bfd_mach_o_fat_member_init (bfd *abfd,
5239 enum bfd_architecture arch_type,
5240 unsigned long arch_subtype,
5241 mach_o_fat_archentry *entry)
5243 struct areltdata *areltdata;
5244 /* Create the member filename. Use ARCH_NAME. */
5245 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5249 /* Use the architecture name if known. */
5250 abfd->filename = xstrdup (ap->printable_name);
5254 /* Forge a uniq id. */
5255 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
5256 char *name = xmalloc (namelen);
5257 snprintf (name, namelen, "0x%lx-0x%lx",
5258 entry->cputype, entry->cpusubtype);
5259 abfd->filename = name;
5262 areltdata = bfd_zmalloc (sizeof (struct areltdata));
5263 areltdata->parsed_size = entry->size;
5264 abfd->arelt_data = areltdata;
5265 abfd->iostream = NULL;
5266 abfd->origin = entry->offset;
5270 bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev)
5272 mach_o_fat_data_struct *adata;
5273 mach_o_fat_archentry *entry = NULL;
5276 enum bfd_architecture arch_type;
5277 unsigned long arch_subtype;
5279 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
5280 BFD_ASSERT (adata != NULL);
5282 /* Find index of previous entry. */
5285 /* Start at first one. */
5290 /* Find index of PREV. */
5291 for (i = 0; i < adata->nfat_arch; i++)
5293 if (adata->archentries[i].offset == prev->origin)
5297 if (i == adata->nfat_arch)
5300 bfd_set_error (bfd_error_bad_value);
5304 /* Get next entry. */
5308 if (i >= adata->nfat_arch)
5310 bfd_set_error (bfd_error_no_more_archived_files);
5314 entry = &adata->archentries[i];
5315 nbfd = _bfd_new_bfd_contained_in (archive);
5319 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5320 &arch_type, &arch_subtype);
5322 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5324 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
5329 /* Analogous to stat call. */
5332 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5334 if (abfd->arelt_data == NULL)
5336 bfd_set_error (bfd_error_invalid_operation);
5343 buf->st_mode = 0644;
5344 buf->st_size = arelt_size (abfd);
5349 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5350 If ABFD is a fat image containing a member that corresponds to FORMAT
5351 and ARCH, returns it.
5352 In other case, returns NULL.
5353 This function allows transparent uses of fat images. */
5356 bfd_mach_o_fat_extract (bfd *abfd,
5358 const bfd_arch_info_type *arch)
5361 mach_o_fat_data_struct *adata;
5364 if (bfd_check_format (abfd, format))
5366 if (bfd_get_arch_info (abfd) == arch)
5370 if (!bfd_check_format (abfd, bfd_archive)
5371 || abfd->xvec != &mach_o_fat_vec)
5374 /* This is a Mach-O fat image. */
5375 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5376 BFD_ASSERT (adata != NULL);
5378 for (i = 0; i < adata->nfat_arch; i++)
5380 struct mach_o_fat_archentry *e = &adata->archentries[i];
5381 enum bfd_architecture cpu_type;
5382 unsigned long cpu_subtype;
5384 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5385 &cpu_type, &cpu_subtype);
5386 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5389 /* The architecture is found. */
5390 res = _bfd_new_bfd_contained_in (abfd);
5394 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
5396 if (bfd_check_format (res, format))
5398 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5409 bfd_mach_o_lookup_command (bfd *abfd,
5410 bfd_mach_o_load_command_type type,
5411 bfd_mach_o_load_command **mcommand)
5413 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5414 struct bfd_mach_o_load_command *cmd;
5417 BFD_ASSERT (mdata != NULL);
5418 BFD_ASSERT (mcommand != NULL);
5421 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5423 if (cmd->type != type)
5435 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
5439 case BFD_MACH_O_CPU_TYPE_MC680x0:
5441 case BFD_MACH_O_CPU_TYPE_MC88000:
5443 case BFD_MACH_O_CPU_TYPE_POWERPC:
5445 case BFD_MACH_O_CPU_TYPE_I386:
5447 case BFD_MACH_O_CPU_TYPE_SPARC:
5449 case BFD_MACH_O_CPU_TYPE_I860:
5451 case BFD_MACH_O_CPU_TYPE_HPPA:
5452 return 0xc0000000 - 0x04000000;
5458 /* The following two tables should be kept, as far as possible, in order of
5459 most frequently used entries to optimize their use from gas. */
5461 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
5463 { "regular", BFD_MACH_O_S_REGULAR},
5464 { "coalesced", BFD_MACH_O_S_COALESCED},
5465 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5466 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5467 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5468 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
5469 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
5470 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
5471 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5472 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
5473 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5474 { "interposing", BFD_MACH_O_S_INTERPOSING},
5475 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
5476 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5477 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
5478 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
5479 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5483 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
5485 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5486 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
5487 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5488 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
5489 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
5490 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5491 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5492 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5493 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
5494 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5495 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5499 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5502 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
5504 const bfd_mach_o_xlat_name *x;
5505 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5507 for (x = bfd_mach_o_section_type_name; x->name; x++)
5508 if (strcmp (x->name, name) == 0)
5510 /* We found it... does the target support it? */
5511 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5512 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5513 return x->val; /* OK. */
5515 break; /* Not supported. */
5517 /* Maximum section ID = 0xff. */
5521 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5524 bfd_mach_o_get_section_attribute_from_name (const char *name)
5526 const bfd_mach_o_xlat_name *x;
5528 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5529 if (strcmp (x->name, name) == 0)
5531 return (unsigned int)-1;
5535 bfd_mach_o_core_fetch_environment (bfd *abfd,
5536 unsigned char **rbuf,
5539 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5540 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
5541 bfd_mach_o_load_command *cmd;
5543 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5545 bfd_mach_o_segment_command *seg;
5547 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
5550 seg = &cmd->command.segment;
5552 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5554 unsigned long start = seg->fileoff;
5555 unsigned long end = seg->fileoff + seg->filesize;
5556 unsigned char *buf = bfd_malloc (1024);
5557 unsigned long size = 1024;
5561 bfd_size_type nread = 0;
5562 unsigned long offset;
5563 int found_nonnull = 0;
5565 if (size > (end - start))
5566 size = (end - start);
5568 buf = bfd_realloc_or_free (buf, size);
5572 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5578 nread = bfd_bread (buf, size, abfd);
5586 for (offset = 4; offset <= size; offset += 4)
5590 val = *((unsigned long *) (buf + size - offset));
5591 if (! found_nonnull)
5596 else if (val == 0x0)
5598 unsigned long bottom;
5601 bottom = seg->fileoff + seg->filesize - offset;
5602 top = seg->fileoff + seg->filesize - 4;
5603 *rbuf = bfd_malloc (top - bottom);
5604 *rlen = top - bottom;
5606 memcpy (*rbuf, buf + size - *rlen, *rlen);
5612 if (size == (end - start))
5626 bfd_mach_o_core_file_failing_command (bfd *abfd)
5628 unsigned char *buf = NULL;
5629 unsigned int len = 0;
5632 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5636 return (char *) buf;
5640 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
5645 static bfd_mach_o_uuid_command *
5646 bfd_mach_o_lookup_uuid_command (bfd *abfd)
5648 bfd_mach_o_load_command *uuid_cmd = NULL;
5649 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5650 if (ncmd != 1 || uuid_cmd == NULL)
5652 return &uuid_cmd->command.uuid;
5655 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5658 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5660 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5663 BFD_ASSERT (uuid_cmd);
5665 if (!bfd_check_format (abfd, bfd_object))
5668 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5669 || bfd_mach_o_get_data (abfd) == NULL
5670 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5673 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5674 if (dsym_uuid_cmd == NULL)
5677 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5678 sizeof (uuid_cmd->uuid)) != 0)
5684 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5685 The caller is responsible for closing the returned BFD object and
5686 its my_archive if the returned BFD is in a fat dSYM. */
5689 bfd_mach_o_find_dsym (const char *dsym_filename,
5690 const bfd_mach_o_uuid_command *uuid_cmd,
5691 const bfd_arch_info_type *arch)
5693 bfd *base_dsym_bfd, *dsym_bfd;
5695 BFD_ASSERT (uuid_cmd);
5697 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5698 if (base_dsym_bfd == NULL)
5701 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5702 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5705 bfd_close (dsym_bfd);
5706 if (base_dsym_bfd != dsym_bfd)
5707 bfd_close (base_dsym_bfd);
5712 /* Return a BFD created from a dSYM file for ABFD.
5713 The caller is responsible for closing the returned BFD object, its
5714 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5717 bfd_mach_o_follow_dsym (bfd *abfd)
5719 char *dsym_filename;
5720 bfd_mach_o_uuid_command *uuid_cmd;
5721 bfd *dsym_bfd, *base_bfd = abfd;
5722 const char *base_basename;
5724 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5727 if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive))
5728 base_bfd = abfd->my_archive;
5729 /* BFD may have been opened from a stream. */
5730 if (base_bfd->filename == NULL)
5732 bfd_set_error (bfd_error_invalid_operation);
5735 base_basename = lbasename (base_bfd->filename);
5737 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5738 if (uuid_cmd == NULL)
5741 /* TODO: We assume the DWARF file has the same as the binary's.
5742 It seems apple's GDB checks all files in the dSYM bundle directory.
5743 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5745 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5746 + strlen (dsym_subdir) + 1
5747 + strlen (base_basename) + 1);
5748 sprintf (dsym_filename, "%s%s/%s",
5749 base_bfd->filename, dsym_subdir, base_basename);
5751 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5752 bfd_get_arch_info (abfd));
5753 if (dsym_bfd == NULL)
5754 free (dsym_filename);
5760 bfd_mach_o_find_nearest_line (bfd *abfd,
5764 const char **filename_ptr,
5765 const char **functionname_ptr,
5766 unsigned int *line_ptr,
5767 unsigned int *discriminator_ptr)
5769 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5772 switch (mdata->header.filetype)
5774 case BFD_MACH_O_MH_OBJECT:
5776 case BFD_MACH_O_MH_EXECUTE:
5777 case BFD_MACH_O_MH_DYLIB:
5778 case BFD_MACH_O_MH_BUNDLE:
5779 case BFD_MACH_O_MH_KEXT_BUNDLE:
5780 if (mdata->dwarf2_find_line_info == NULL)
5782 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5783 /* When we couldn't find dSYM for this binary, we look for
5784 the debug information in the binary itself. In this way,
5785 we won't try finding separated dSYM again because
5786 mdata->dwarf2_find_line_info will be filled. */
5787 if (! mdata->dsym_bfd)
5789 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5790 dwarf_debug_sections, symbols,
5791 &mdata->dwarf2_find_line_info,
5799 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5800 filename_ptr, functionname_ptr,
5801 line_ptr, discriminator_ptr,
5802 dwarf_debug_sections, 0,
5803 &mdata->dwarf2_find_line_info);
5807 bfd_mach_o_close_and_cleanup (bfd *abfd)
5809 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5810 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
5812 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5813 bfd_mach_o_free_cached_info (abfd);
5814 if (mdata->dsym_bfd != NULL)
5816 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5818 /* FIXME: PR 19435: This calculation to find the memory allocated by
5819 bfd_mach_o_follow_dsym for the filename does not always end up
5820 selecting the correct pointer. Unfortunately this problem is
5821 very hard to reproduce on a non Mach-O native system, so until it
5822 can be traced and fixed on such a system, this code will remain
5823 commented out. This does mean that there will be a memory leak,
5824 but it is small, and happens when we are closing down, so it
5825 should not matter too much. */
5826 char *dsym_filename = (char *)(fat_bfd
5828 : mdata->dsym_bfd->filename);
5830 bfd_close (mdata->dsym_bfd);
5831 mdata->dsym_bfd = NULL;
5833 bfd_close (fat_bfd);
5835 free (dsym_filename);
5840 return _bfd_generic_close_and_cleanup (abfd);
5843 bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
5845 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5847 free (mdata->dyn_reloc_cache);
5848 mdata->dyn_reloc_cache = NULL;
5849 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5851 free (asect->relocation);
5852 asect->relocation = NULL;
5858 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5859 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5861 #define bfd_mach_o_canonicalize_one_reloc NULL
5862 #define bfd_mach_o_swap_reloc_out NULL
5863 #define bfd_mach_o_print_thread NULL
5864 #define bfd_mach_o_tgt_seg_table NULL
5865 #define bfd_mach_o_section_type_valid_for_tgt NULL
5867 #define TARGET_NAME mach_o_be_vec
5868 #define TARGET_STRING "mach-o-be"
5869 #define TARGET_ARCHITECTURE bfd_arch_unknown
5870 #define TARGET_PAGESIZE 1
5871 #define TARGET_BIG_ENDIAN 1
5872 #define TARGET_ARCHIVE 0
5873 #define TARGET_PRIORITY 1
5874 #include "mach-o-target.c"
5877 #undef TARGET_STRING
5878 #undef TARGET_ARCHITECTURE
5879 #undef TARGET_PAGESIZE
5880 #undef TARGET_BIG_ENDIAN
5881 #undef TARGET_ARCHIVE
5882 #undef TARGET_PRIORITY
5884 #define TARGET_NAME mach_o_le_vec
5885 #define TARGET_STRING "mach-o-le"
5886 #define TARGET_ARCHITECTURE bfd_arch_unknown
5887 #define TARGET_PAGESIZE 1
5888 #define TARGET_BIG_ENDIAN 0
5889 #define TARGET_ARCHIVE 0
5890 #define TARGET_PRIORITY 1
5892 #include "mach-o-target.c"
5895 #undef TARGET_STRING
5896 #undef TARGET_ARCHITECTURE
5897 #undef TARGET_PAGESIZE
5898 #undef TARGET_BIG_ENDIAN
5899 #undef TARGET_ARCHIVE
5900 #undef TARGET_PRIORITY
5902 /* Not yet handled: creating an archive. */
5903 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
5905 #define bfd_mach_o_close_and_cleanup _bfd_bool_bfd_true
5908 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
5909 #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file
5910 #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p
5912 #define TARGET_NAME mach_o_fat_vec
5913 #define TARGET_STRING "mach-o-fat"
5914 #define TARGET_ARCHITECTURE bfd_arch_unknown
5915 #define TARGET_PAGESIZE 1
5916 #define TARGET_BIG_ENDIAN 1
5917 #define TARGET_ARCHIVE 1
5918 #define TARGET_PRIORITY 0
5920 #include "mach-o-target.c"
5923 #undef TARGET_STRING
5924 #undef TARGET_ARCHITECTURE
5925 #undef TARGET_PAGESIZE
5926 #undef TARGET_BIG_ENDIAN
5927 #undef TARGET_ARCHIVE
5928 #undef TARGET_PRIORITY