1 /* Mach-O support for BFD.
2 Copyright (C) 1999-2017 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],
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 (%#Lx) below start of segment (%#Lx)"),
2825 vma = s->addr + s->size;
2828 /* Set segment file offset: make it page aligned. */
2829 vma = seg->sect_head->addr;
2830 seg->vmaddr = vma & ~pagemask;
2831 if ((mdata->filelen & pagemask) > (vma & pagemask))
2832 mdata->filelen += pagemask + 1;
2833 seg->fileoff = mdata->filelen & ~pagemask;
2834 mdata->filelen = seg->fileoff + (vma & pagemask);
2836 /* Set section file offset. */
2837 for (s = seg->sect_head; s != NULL; s = s->next)
2839 asection *sec = s->bfdsection;
2840 flagword flags = bfd_get_section_flags (abfd, sec);
2842 /* Adjust segment size. */
2843 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2844 seg->vmsize += s->size;
2846 /* File offset and length. */
2847 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2849 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2850 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2851 != BFD_MACH_O_S_GB_ZEROFILL))
2853 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2855 s->offset = mdata->filelen;
2856 s->bfdsection->filepos = s->offset;
2858 seg->filesize += s->size;
2859 mdata->filelen += s->size;
2864 s->bfdsection->filepos = 0;
2867 /* Set protection. */
2868 if (flags & SEC_LOAD)
2870 if (flags & SEC_CODE)
2871 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
2872 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
2873 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
2876 /* Relocs shouldn't appear in non-object files. */
2877 if (s->bfdsection->reloc_count != 0)
2882 if (seg->initprot != 0)
2883 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2884 | BFD_MACH_O_PROT_EXECUTE;
2888 /* Round segment size (and file size). */
2889 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
2890 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
2891 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
2896 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
2897 fields in header. */
2900 bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
2902 unsigned wide = mach_o_wide_p (&mdata->header);
2903 unsigned int hdrlen;
2905 bfd_mach_o_load_command *cmd;
2907 bfd_boolean ret = TRUE;
2909 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
2910 align = wide ? 8 - 1 : 4 - 1;
2912 mdata->header.ncmds = 0;
2914 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
2916 mdata->header.ncmds++;
2917 cmd->offset = offset;
2921 case BFD_MACH_O_LC_SEGMENT_64:
2922 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
2923 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
2925 case BFD_MACH_O_LC_SEGMENT:
2926 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
2927 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
2929 case BFD_MACH_O_LC_SYMTAB:
2930 cmd->len = sizeof (struct mach_o_symtab_command_external)
2931 + BFD_MACH_O_LC_SIZE;
2933 case BFD_MACH_O_LC_DYSYMTAB:
2934 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
2935 + BFD_MACH_O_LC_SIZE;
2937 case BFD_MACH_O_LC_LOAD_DYLIB:
2938 cmd->len = sizeof (struct mach_o_dylib_command_external)
2939 + BFD_MACH_O_LC_SIZE;
2940 cmd->command.dylib.name_offset = cmd->len;
2941 cmd->len += strlen (cmd->command.dylib.name_str);
2942 cmd->len = (cmd->len + align) & ~align;
2944 case BFD_MACH_O_LC_LOAD_DYLINKER:
2945 cmd->len = sizeof (struct mach_o_str_command_external)
2946 + BFD_MACH_O_LC_SIZE;
2947 cmd->command.dylinker.name_offset = cmd->len;
2948 cmd->len += strlen (cmd->command.dylinker.name_str);
2949 cmd->len = (cmd->len + align) & ~align;
2951 case BFD_MACH_O_LC_MAIN:
2952 cmd->len = sizeof (struct mach_o_entry_point_command_external)
2953 + BFD_MACH_O_LC_SIZE;
2955 case BFD_MACH_O_LC_DYLD_INFO:
2956 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
2957 + BFD_MACH_O_LC_SIZE;
2961 (_("unable to layout unknown load command %#x"),
2967 BFD_ASSERT (cmd->len % (align + 1) == 0);
2970 mdata->header.sizeofcmds = offset - hdrlen;
2971 mdata->filelen = offset;
2976 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
2980 bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
2981 bfd_mach_o_load_command *cmd,
2982 const char *segname, unsigned int nbr_sect)
2984 bfd_mach_o_segment_command *seg = &cmd->command.segment;
2985 unsigned wide = mach_o_wide_p (&mdata->header);
2987 /* Init segment command. */
2988 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
2989 cmd->type_required = FALSE;
2991 strcpy (seg->segname, segname);
2992 seg->nsects = nbr_sect;
3002 seg->sect_head = NULL;
3003 seg->sect_tail = NULL;
3006 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
3007 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
3008 and copy functionality. */
3011 bfd_mach_o_build_commands (bfd *abfd)
3013 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3014 unsigned wide = mach_o_wide_p (&mdata->header);
3015 unsigned int nbr_segcmd = 0;
3016 bfd_mach_o_load_command *commands;
3017 unsigned int nbr_commands;
3018 int symtab_idx = -1;
3019 int dysymtab_idx = -1;
3023 /* Return now if already built. */
3024 if (mdata->header.ncmds != 0)
3027 /* Fill in the file type, if not already set. */
3028 if (mdata->header.filetype == 0)
3030 if (abfd->flags & EXEC_P)
3031 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
3032 else if (abfd->flags & DYNAMIC)
3033 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
3035 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
3038 /* If hasn't already been done, flatten sections list, and sort
3039 if/when required. Must be done before the symbol table is adjusted,
3040 since that depends on properly numbered sections. */
3041 if (mdata->nsects == 0 || mdata->sections == NULL)
3042 if (! bfd_mach_o_mangle_sections (abfd, mdata))
3045 /* Order the symbol table, fill-in/check mach-o specific fields and
3046 partition out any indirect symbols. */
3047 if (!bfd_mach_o_mangle_symbols (abfd))
3050 /* Segment commands. */
3051 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3053 /* Only one segment for all the sections. But the segment is
3054 optional if there is no sections. */
3055 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
3059 bfd_mach_o_section *prev_sect = NULL;
3061 /* One pagezero segment and one linkedit segment. */
3064 /* Create one segment for associated segment name in sections.
3065 Assume that sections with the same segment name are consecutive. */
3066 for (i = 0; i < mdata->nsects; i++)
3068 bfd_mach_o_section *this_sect = mdata->sections[i];
3070 if (prev_sect == NULL
3071 || strcmp (prev_sect->segname, this_sect->segname) != 0)
3074 prev_sect = this_sect;
3079 nbr_commands = nbr_segcmd;
3081 /* One command for the symbol table (only if there are symbols. */
3082 if (bfd_get_symcount (abfd) > 0)
3083 symtab_idx = nbr_commands++;
3086 This is a rather crude test for whether we should build a dysymtab. */
3087 if (bfd_mach_o_should_emit_dysymtab ()
3088 && bfd_get_symcount (abfd))
3090 /* If there should be a case where a dysymtab could be emitted without
3091 a symtab (seems improbable), this would need amending. */
3092 dysymtab_idx = nbr_commands++;
3095 /* Add an entry point command. */
3096 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3097 && bfd_get_start_address (abfd) != 0)
3098 main_idx = nbr_commands++;
3100 /* Well, we must have a header, at least. */
3101 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3103 /* A bit unusual, but no content is valid;
3104 as -n empty.s -o empty.o */
3105 if (nbr_commands == 0)
3107 /* Layout commands (well none...) and set headers command fields. */
3108 return bfd_mach_o_layout_commands (mdata);
3111 /* Create commands for segments (and symtabs), prepend them. */
3112 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3113 if (commands == NULL)
3115 for (i = 0; i < nbr_commands - 1; i++)
3116 commands[i].next = &commands[i + 1];
3117 commands[nbr_commands - 1].next = mdata->first_command;
3118 if (mdata->first_command == NULL)
3119 mdata->last_command = &commands[nbr_commands - 1];
3120 mdata->first_command = &commands[0];
3122 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3124 /* For object file, there is only one segment. */
3125 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3127 else if (nbr_segcmd != 0)
3129 bfd_mach_o_load_command *cmd;
3131 BFD_ASSERT (nbr_segcmd >= 2);
3135 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3137 /* Segments from sections. */
3139 for (i = 0; i < mdata->nsects;)
3141 const char *segname = mdata->sections[i]->segname;
3142 unsigned int nbr_sect = 1;
3144 /* Count number of sections for this segment. */
3145 for (i++; i < mdata->nsects; i++)
3146 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3151 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3156 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
3159 if (symtab_idx >= 0)
3161 /* Init symtab command. */
3162 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
3164 cmd->type = BFD_MACH_O_LC_SYMTAB;
3165 cmd->type_required = FALSE;
3168 /* If required, setup symtab command, see comment above about the quality
3170 if (dysymtab_idx >= 0)
3172 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
3174 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
3175 cmd->type_required = FALSE;
3178 /* Create the main command. */
3181 bfd_mach_o_load_command *cmd = &commands[main_idx];
3183 cmd->type = BFD_MACH_O_LC_MAIN;
3184 cmd->type_required = TRUE;
3186 cmd->command.main.entryoff = 0;
3187 cmd->command.main.stacksize = 0;
3190 /* Layout commands. */
3191 if (! bfd_mach_o_layout_commands (mdata))
3194 /* So, now we have sized the commands and the filelen set to that.
3195 Now we can build the segment command and set the section file offsets. */
3196 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3198 for (i = 0; i < nbr_segcmd; i++)
3199 if (!bfd_mach_o_build_obj_seg_command
3200 (abfd, &commands[i].command.segment))
3207 /* Skip pagezero and linkedit segments. */
3208 for (i = 1; i < nbr_segcmd - 1; i++)
3210 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3212 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3215 if (seg->vmaddr + seg->vmsize > maxvma)
3216 maxvma = seg->vmaddr + seg->vmsize;
3219 /* Set the size of __PAGEZERO. */
3220 commands[0].command.segment.vmsize =
3221 commands[1].command.segment.vmaddr;
3223 /* Set the vma and fileoff of __LINKEDIT. */
3224 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3225 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3227 /* Set entry point (once segments have been laid out). */
3229 commands[main_idx].command.main.entryoff =
3230 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3236 /* Set the contents of a section. */
3239 bfd_mach_o_set_section_contents (bfd *abfd,
3241 const void * location,
3243 bfd_size_type count)
3247 /* Trying to write the first section contents will trigger the creation of
3248 the load commands if they are not already present. */
3249 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
3255 pos = section->filepos + offset;
3256 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3257 || bfd_bwrite (location, count, abfd) != count)
3264 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
3265 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3270 /* Make an empty symbol. This is required only because
3271 bfd_make_section_anyway wants to create a symbol for the section. */
3274 bfd_mach_o_make_empty_symbol (bfd *abfd)
3276 asymbol *new_symbol;
3278 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3279 if (new_symbol == NULL)
3281 new_symbol->the_bfd = abfd;
3282 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
3287 bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header)
3289 struct mach_o_header_external raw;
3291 bfd_vma (*get32) (const void *) = NULL;
3293 /* Just read the magic number. */
3294 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
3295 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
3298 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3300 header->byteorder = BFD_ENDIAN_BIG;
3301 header->magic = BFD_MACH_O_MH_MAGIC;
3302 header->version = 1;
3305 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3307 header->byteorder = BFD_ENDIAN_LITTLE;
3308 header->magic = BFD_MACH_O_MH_MAGIC;
3309 header->version = 1;
3312 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3314 header->byteorder = BFD_ENDIAN_BIG;
3315 header->magic = BFD_MACH_O_MH_MAGIC_64;
3316 header->version = 2;
3319 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3321 header->byteorder = BFD_ENDIAN_LITTLE;
3322 header->magic = BFD_MACH_O_MH_MAGIC_64;
3323 header->version = 2;
3328 header->byteorder = BFD_ENDIAN_UNKNOWN;
3332 /* Once the size of the header is known, read the full header. */
3333 size = mach_o_wide_p (header) ?
3334 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3336 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
3337 || bfd_bread (&raw, size, abfd) != size)
3340 header->cputype = (*get32) (raw.cputype);
3341 header->cpusubtype = (*get32) (raw.cpusubtype);
3342 header->filetype = (*get32) (raw.filetype);
3343 header->ncmds = (*get32) (raw.ncmds);
3344 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3345 header->flags = (*get32) (raw.flags);
3347 if (mach_o_wide_p (header))
3348 header->reserved = (*get32) (raw.reserved);
3350 header->reserved = 0;
3356 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3358 bfd_mach_o_section *s;
3359 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
3361 s = bfd_mach_o_get_mach_o_section (sec);
3365 static const mach_o_section_name_xlat * xlat;
3367 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3370 sec->used_by_bfd = s;
3371 s->bfdsection = sec;
3373 /* Create the Darwin seg/sect name pair from the bfd name.
3374 If this is a canonical name for which a specific paiting exists
3375 there will also be defined flags, type, attribute and alignment
3377 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3380 s->flags = xlat->macho_sectype | xlat->macho_secattr;
3381 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
3383 (void) bfd_set_section_alignment (abfd, sec, s->align);
3384 bfd_flags = bfd_get_section_flags (abfd, sec);
3385 if (bfd_flags == SEC_NO_FLAGS)
3386 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3389 /* Create default flags. */
3390 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
3393 return _bfd_generic_new_section_hook (abfd, sec);
3397 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3401 bfd_mach_o_section *section;
3403 flags = bfd_get_section_flags (abfd, sec);
3404 section = bfd_mach_o_get_mach_o_section (sec);
3406 /* TODO: see if we should use the xlat system for doing this by
3407 preference and fall back to this for unknown sections. */
3409 if (flags == SEC_NO_FLAGS)
3411 /* Try to guess flags. */
3412 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3413 flags = SEC_DEBUGGING;
3417 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3418 != BFD_MACH_O_S_ZEROFILL)
3421 if (prot & BFD_MACH_O_PROT_EXECUTE)
3423 if (prot & BFD_MACH_O_PROT_WRITE)
3425 else if (prot & BFD_MACH_O_PROT_READ)
3426 flags |= SEC_READONLY;
3432 if ((flags & SEC_DEBUGGING) == 0)
3436 if (section->offset != 0)
3437 flags |= SEC_HAS_CONTENTS;
3438 if (section->nreloc != 0)
3441 bfd_set_section_flags (abfd, sec, flags);
3443 sec->vma = section->addr;
3444 sec->lma = section->addr;
3445 sec->size = section->size;
3446 sec->filepos = section->offset;
3447 sec->alignment_power = section->align;
3448 sec->segment_mark = 0;
3449 sec->reloc_count = section->nreloc;
3450 sec->rel_filepos = section->reloff;
3454 bfd_mach_o_make_bfd_section (bfd *abfd,
3455 const unsigned char *segname,
3456 const unsigned char *sectname)
3461 bfd_mach_o_convert_section_name_to_bfd
3462 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3466 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3470 bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot)
3472 struct mach_o_section_32_external raw;
3474 bfd_mach_o_section *section;
3476 if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3477 != BFD_MACH_O_SECTION_SIZE)
3480 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3484 section = bfd_mach_o_get_mach_o_section (sec);
3485 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3486 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3487 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3488 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3489 section->addr = bfd_h_get_32 (abfd, raw.addr);
3490 section->size = bfd_h_get_32 (abfd, raw.size);
3491 section->offset = bfd_h_get_32 (abfd, raw.offset);
3492 section->align = bfd_h_get_32 (abfd, raw.align);
3493 /* PR 17512: file: 0017eb76. */
3494 if (section->align > 64)
3497 (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, "
3498 "using 32 instead"), section->align);
3499 section->align = 32;
3501 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3502 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3503 section->flags = bfd_h_get_32 (abfd, raw.flags);
3504 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3505 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3506 section->reserved3 = 0;
3508 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3514 bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot)
3516 struct mach_o_section_64_external raw;
3518 bfd_mach_o_section *section;
3520 if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3521 != BFD_MACH_O_SECTION_64_SIZE)
3524 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3528 section = bfd_mach_o_get_mach_o_section (sec);
3529 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3530 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3531 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3532 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3533 section->addr = bfd_h_get_64 (abfd, raw.addr);
3534 section->size = bfd_h_get_64 (abfd, raw.size);
3535 section->offset = bfd_h_get_32 (abfd, raw.offset);
3536 section->align = bfd_h_get_32 (abfd, raw.align);
3537 if (section->align > 64)
3540 (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, "
3541 "using 32 instead"), section->align);
3542 section->align = 32;
3544 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3545 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3546 section->flags = bfd_h_get_32 (abfd, raw.flags);
3547 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3548 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3549 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3551 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3557 bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide)
3560 return bfd_mach_o_read_section_64 (abfd, prot);
3562 return bfd_mach_o_read_section_32 (abfd, prot);
3566 bfd_mach_o_read_symtab_symbol (bfd *abfd,
3567 bfd_mach_o_symtab_command *sym,
3568 bfd_mach_o_asymbol *s,
3571 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3572 unsigned int wide = mach_o_wide_p (&mdata->header);
3573 unsigned int symwidth =
3574 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
3575 unsigned int symoff = sym->symoff + (i * symwidth);
3576 struct mach_o_nlist_64_external raw;
3577 unsigned char type = -1;
3578 unsigned char section = -1;
3580 symvalue value = -1;
3581 unsigned long stroff = -1;
3582 unsigned int symtype = -1;
3584 BFD_ASSERT (sym->strtab != NULL);
3586 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
3587 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3590 /* xgettext:c-format */
3591 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"),
3596 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3597 type = bfd_h_get_8 (abfd, raw.n_type);
3598 symtype = type & BFD_MACH_O_N_TYPE;
3599 section = bfd_h_get_8 (abfd, raw.n_sect);
3600 desc = bfd_h_get_16 (abfd, raw.n_desc);
3602 value = bfd_h_get_64 (abfd, raw.n_value);
3604 value = bfd_h_get_32 (abfd, raw.n_value);
3606 if (stroff >= sym->strsize)
3609 /* xgettext:c-format */
3610 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"),
3616 s->symbol.the_bfd = abfd;
3617 s->symbol.name = sym->strtab + stroff;
3618 s->symbol.value = value;
3619 s->symbol.flags = 0x0;
3620 s->symbol.udata.i = i;
3622 s->n_sect = section;
3625 if (type & BFD_MACH_O_N_STAB)
3627 s->symbol.flags |= BSF_DEBUGGING;
3628 s->symbol.section = bfd_und_section_ptr;
3640 if ((section > 0) && (section <= mdata->nsects))
3642 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3644 s->symbol.value - mdata->sections[section - 1]->addr;
3651 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
3652 s->symbol.flags |= BSF_GLOBAL;
3654 s->symbol.flags |= BSF_LOCAL;
3658 case BFD_MACH_O_N_UNDF:
3659 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3660 && s->symbol.value != 0)
3662 /* A common symbol. */
3663 s->symbol.section = bfd_com_section_ptr;
3664 s->symbol.flags = BSF_NO_FLAGS;
3668 s->symbol.section = bfd_und_section_ptr;
3669 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3670 s->symbol.flags |= BSF_WEAK;
3673 case BFD_MACH_O_N_PBUD:
3674 s->symbol.section = bfd_und_section_ptr;
3676 case BFD_MACH_O_N_ABS:
3677 s->symbol.section = bfd_abs_section_ptr;
3679 case BFD_MACH_O_N_SECT:
3680 if ((section > 0) && (section <= mdata->nsects))
3682 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3684 s->symbol.value - mdata->sections[section - 1]->addr;
3688 /* Mach-O uses 0 to mean "no section"; not an error. */
3692 /* xgettext:c-format */
3693 (_("bfd_mach_o_read_symtab_symbol: "
3694 "symbol \"%s\" specified invalid section %d (max %lu): "
3695 "setting to undefined"),
3696 s->symbol.name, section, mdata->nsects);
3698 s->symbol.section = bfd_und_section_ptr;
3701 case BFD_MACH_O_N_INDR:
3702 /* FIXME: we don't follow the BFD convention as this indirect symbol
3703 won't be followed by the referenced one. This looks harmless
3704 unless we start using the linker. */
3705 s->symbol.flags |= BSF_INDIRECT;
3706 s->symbol.section = bfd_ind_section_ptr;
3707 s->symbol.value = 0;
3711 /* xgettext:c-format */
3712 (_("bfd_mach_o_read_symtab_symbol: "
3713 "symbol \"%s\" specified invalid type field 0x%x: "
3714 "setting to undefined"), s->symbol.name, symtype);
3715 s->symbol.section = bfd_und_section_ptr;
3724 bfd_mach_o_read_symtab_strtab (bfd *abfd)
3726 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3727 bfd_mach_o_symtab_command *sym = mdata->symtab;
3729 /* Fail if there is no symtab. */
3733 /* Success if already loaded. */
3737 if (abfd->flags & BFD_IN_MEMORY)
3739 struct bfd_in_memory *b;
3741 b = (struct bfd_in_memory *) abfd->iostream;
3743 if ((sym->stroff + sym->strsize) > b->size)
3745 bfd_set_error (bfd_error_file_truncated);
3748 sym->strtab = (char *) b->buffer + sym->stroff;
3752 sym->strtab = bfd_alloc (abfd, sym->strsize + 1);
3753 if (sym->strtab == NULL)
3756 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
3757 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3759 /* PR 17512: file: 10888-1609-0.004. */
3760 bfd_release (abfd, sym->strtab);
3762 bfd_set_error (bfd_error_file_truncated);
3765 /* Zero terminate the string table. */
3766 sym->strtab[sym->strsize] = 0;
3773 bfd_mach_o_read_symtab_symbols (bfd *abfd)
3775 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3776 bfd_mach_o_symtab_command *sym = mdata->symtab;
3779 if (sym == NULL || sym->symbols)
3780 /* Return now if there are no symbols or if already loaded. */
3783 sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol));
3784 if (sym->symbols == NULL)
3786 _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: "
3787 "unable to allocate memory for symbols"));
3792 if (!bfd_mach_o_read_symtab_strtab (abfd))
3795 for (i = 0; i < sym->nsyms; i++)
3796 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3802 bfd_release (abfd, sym->symbols);
3803 sym->symbols = NULL;
3809 bfd_mach_o_i386_flavour_string (unsigned int flavour)
3811 switch ((int) flavour)
3813 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3814 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3815 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3816 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3817 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3818 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3819 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3820 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3821 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3822 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3823 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3824 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
3825 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3826 default: return "UNKNOWN";
3831 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3833 switch ((int) flavour)
3835 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3836 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3837 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3838 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3839 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3840 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3841 default: return "UNKNOWN";
3846 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3848 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
3849 struct mach_o_str_command_external raw;
3850 unsigned int nameoff;
3851 unsigned int namelen;
3853 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3856 nameoff = bfd_h_get_32 (abfd, raw.str);
3858 cmd->name_offset = nameoff;
3859 namelen = command->len - nameoff;
3860 nameoff += command->offset;
3861 cmd->name_str = bfd_alloc (abfd, namelen);
3862 if (cmd->name_str == NULL)
3864 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3865 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3871 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
3873 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3874 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
3875 struct mach_o_dylib_command_external raw;
3876 unsigned int nameoff;
3877 unsigned int namelen;
3879 switch (command->type)
3881 case BFD_MACH_O_LC_LOAD_DYLIB:
3882 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
3883 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
3884 case BFD_MACH_O_LC_ID_DYLIB:
3885 case BFD_MACH_O_LC_REEXPORT_DYLIB:
3886 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
3893 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3896 nameoff = bfd_h_get_32 (abfd, raw.name);
3897 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
3898 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
3899 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
3901 cmd->name_offset = command->offset + nameoff;
3902 namelen = command->len - nameoff;
3903 cmd->name_str = bfd_alloc (abfd, namelen);
3904 if (cmd->name_str == NULL)
3906 if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0
3907 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
3913 bfd_mach_o_read_prebound_dylib (bfd *abfd,
3914 bfd_mach_o_load_command *command)
3916 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
3917 struct mach_o_prebound_dylib_command_external raw;
3918 unsigned int nameoff;
3919 unsigned int modoff;
3920 unsigned int str_len;
3923 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3926 nameoff = bfd_h_get_32 (abfd, raw.name);
3927 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
3928 if (nameoff > command->len || modoff > command->len)
3931 str_len = command->len - sizeof (raw);
3932 str = bfd_alloc (abfd, str_len);
3935 if (bfd_bread (str, str_len, abfd) != str_len)
3938 cmd->name_offset = command->offset + nameoff;
3939 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
3940 cmd->linked_modules_offset = command->offset + modoff;
3942 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3943 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
3948 bfd_mach_o_read_prebind_cksum (bfd *abfd,
3949 bfd_mach_o_load_command *command)
3951 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
3952 struct mach_o_prebind_cksum_command_external raw;
3954 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3957 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
3962 bfd_mach_o_read_twolevel_hints (bfd *abfd,
3963 bfd_mach_o_load_command *command)
3965 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
3966 struct mach_o_twolevel_hints_command_external raw;
3968 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3971 cmd->offset = bfd_get_32 (abfd, raw.offset);
3972 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
3977 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
3979 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
3980 struct mach_o_fvmlib_command_external raw;
3981 unsigned int nameoff;
3982 unsigned int namelen;
3984 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3987 nameoff = bfd_h_get_32 (abfd, raw.name);
3988 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
3989 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
3991 fvm->name_offset = command->offset + nameoff;
3992 namelen = command->len - nameoff;
3993 fvm->name_str = bfd_alloc (abfd, namelen);
3994 if (fvm->name_str == NULL)
3996 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
3997 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
4003 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
4005 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4006 bfd_mach_o_thread_command *cmd = &command->command.thread;
4007 unsigned int offset;
4008 unsigned int nflavours;
4011 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
4012 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
4014 /* Count the number of threads. */
4017 while (offset != command->len)
4019 struct mach_o_thread_command_external raw;
4021 if (offset >= command->len)
4024 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
4025 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4028 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
4032 /* Allocate threads. */
4033 cmd->flavours = bfd_alloc2
4034 (abfd, nflavours, sizeof (bfd_mach_o_thread_flavour));
4035 if (cmd->flavours == NULL)
4037 cmd->nflavours = nflavours;
4041 while (offset != command->len)
4043 struct mach_o_thread_command_external raw;
4045 if (offset >= command->len)
4048 if (nflavours >= cmd->nflavours)
4051 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
4052 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4055 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
4056 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
4057 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
4058 offset += cmd->flavours[nflavours].size + sizeof (raw);
4062 for (i = 0; i < nflavours; i++)
4065 unsigned int snamelen;
4067 const char *flavourstr;
4068 const char *prefix = "LC_THREAD";
4071 switch (mdata->header.cputype)
4073 case BFD_MACH_O_CPU_TYPE_POWERPC:
4074 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
4076 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
4078 case BFD_MACH_O_CPU_TYPE_I386:
4079 case BFD_MACH_O_CPU_TYPE_X86_64:
4081 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
4084 flavourstr = "UNKNOWN_ARCHITECTURE";
4088 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
4089 sname = bfd_alloc (abfd, snamelen);
4095 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4096 if (bfd_get_section_by_name (abfd, sname) == NULL)
4101 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
4105 bfdsec->size = cmd->flavours[i].size;
4106 bfdsec->filepos = cmd->flavours[i].offset;
4107 bfdsec->alignment_power = 0x0;
4109 cmd->section = bfdsec;
4116 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
4118 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
4119 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4121 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4124 struct mach_o_dysymtab_command_external raw;
4126 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4129 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4130 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4131 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4132 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4133 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4134 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4135 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4136 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4137 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4138 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4139 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4140 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4141 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4142 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4143 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4144 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4145 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4146 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4149 if (cmd->nmodtab != 0)
4152 int wide = bfd_mach_o_wide_p (abfd);
4153 unsigned int module_len = wide ? 56 : 52;
4156 bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module));
4157 if (cmd->dylib_module == NULL)
4160 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
4163 for (i = 0; i < cmd->nmodtab; i++)
4165 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4167 unsigned char buf[56];
4169 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4172 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4173 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4174 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4175 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4176 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4177 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4178 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4179 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4180 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4181 v = bfd_h_get_32 (abfd, buf +36);
4182 module->iinit = v & 0xffff;
4183 module->iterm = (v >> 16) & 0xffff;
4184 v = bfd_h_get_32 (abfd, buf + 40);
4185 module->ninit = v & 0xffff;
4186 module->nterm = (v >> 16) & 0xffff;
4189 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4190 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4194 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4195 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4204 cmd->dylib_toc = bfd_alloc2
4205 (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content));
4206 if (cmd->dylib_toc == NULL)
4209 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
4212 for (i = 0; i < cmd->ntoc; i++)
4214 struct mach_o_dylib_table_of_contents_external raw;
4215 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4217 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4220 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4221 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4225 if (cmd->nindirectsyms != 0)
4229 cmd->indirect_syms = bfd_alloc2
4230 (abfd, cmd->nindirectsyms, sizeof (unsigned int));
4231 if (cmd->indirect_syms == NULL)
4234 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
4237 for (i = 0; i < cmd->nindirectsyms; i++)
4239 unsigned char raw[4];
4240 unsigned int *is = &cmd->indirect_syms[i];
4242 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4245 *is = bfd_h_get_32 (abfd, raw);
4249 if (cmd->nextrefsyms != 0)
4254 cmd->ext_refs = bfd_alloc2
4255 (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference));
4256 if (cmd->ext_refs == NULL)
4259 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
4262 for (i = 0; i < cmd->nextrefsyms; i++)
4264 unsigned char raw[4];
4265 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4267 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4270 /* Fields isym and flags are written as bit-fields, thus we need
4271 a specific processing for endianness. */
4272 v = bfd_h_get_32 (abfd, raw);
4273 if (bfd_big_endian (abfd))
4275 ref->isym = (v >> 8) & 0xffffff;
4276 ref->flags = v & 0xff;
4280 ref->isym = v & 0xffffff;
4281 ref->flags = (v >> 24) & 0xff;
4286 if (mdata->dysymtab)
4288 mdata->dysymtab = cmd;
4294 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
4296 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4297 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4298 struct mach_o_symtab_command_external raw;
4300 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4302 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4305 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4306 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4307 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4308 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
4309 symtab->symbols = NULL;
4310 symtab->strtab = NULL;
4312 if (symtab->nsyms != 0)
4313 abfd->flags |= HAS_SYMS;
4317 mdata->symtab = symtab;
4322 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
4324 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
4326 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4328 if (bfd_bread (cmd->uuid, 16, abfd) != 16)
4335 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
4337 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
4338 struct mach_o_linkedit_data_command_external raw;
4340 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4343 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4344 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
4349 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
4351 bfd_mach_o_str_command *cmd = &command->command.str;
4352 struct mach_o_str_command_external raw;
4355 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4358 off = bfd_get_32 (abfd, raw.str);
4359 cmd->stroff = command->offset + off;
4360 cmd->str_len = command->len - off;
4361 cmd->str = bfd_alloc (abfd, cmd->str_len);
4362 if (cmd->str == NULL)
4364 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
4365 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
4370 static unsigned char *
4371 bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4375 buf = bfd_alloc (abfd, size);
4378 if (bfd_seek (abfd, off, SEEK_SET) != 0
4379 || bfd_bread (buf, size, abfd) != size)
4385 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4387 /* Read rebase content. */
4388 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4390 cmd->rebase_content =
4391 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4392 if (cmd->rebase_content == NULL)
4396 /* Read bind content. */
4397 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4400 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4401 if (cmd->bind_content == NULL)
4405 /* Read weak bind content. */
4406 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4408 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4409 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4410 if (cmd->weak_bind_content == NULL)
4414 /* Read lazy bind content. */
4415 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4417 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4418 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4419 if (cmd->lazy_bind_content == NULL)
4423 /* Read export content. */
4424 if (cmd->export_content == NULL && cmd->export_size != 0)
4426 cmd->export_content = bfd_mach_o_alloc_and_read
4427 (abfd, cmd->export_off, cmd->export_size);
4428 if (cmd->export_content == NULL)
4436 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
4438 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
4439 struct mach_o_dyld_info_command_external raw;
4441 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4444 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4445 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
4446 cmd->rebase_content = NULL;
4447 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4448 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
4449 cmd->bind_content = NULL;
4450 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4451 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
4452 cmd->weak_bind_content = NULL;
4453 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4454 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
4455 cmd->lazy_bind_content = NULL;
4456 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4457 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
4458 cmd->export_content = NULL;
4463 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4465 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4466 struct mach_o_version_min_command_external raw;
4469 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4472 ver = bfd_get_32 (abfd, raw.version);
4473 cmd->rel = ver >> 16;
4474 cmd->maj = ver >> 8;
4476 cmd->reserved = bfd_get_32 (abfd, raw.reserved);
4481 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4483 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4484 struct mach_o_encryption_info_command_external raw;
4486 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4489 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4490 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4491 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4496 bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command)
4498 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4499 struct mach_o_encryption_info_64_command_external raw;
4501 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4504 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4505 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4506 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4511 bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4513 bfd_mach_o_main_command *cmd = &command->command.main;
4514 struct mach_o_entry_point_command_external raw;
4516 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4519 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4520 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4525 bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4527 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4528 struct mach_o_source_version_command_external raw;
4531 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4534 ver = bfd_get_64 (abfd, raw.version);
4535 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4536 generates warnings) in case of the host doesn't support 64 bit
4538 cmd->e = ver & 0x3ff;
4540 cmd->d = ver & 0x3ff;
4542 cmd->c = ver & 0x3ff;
4544 cmd->b = ver & 0x3ff;
4546 cmd->a = ver & 0xffffff;
4551 bfd_mach_o_read_segment (bfd *abfd,
4552 bfd_mach_o_load_command *command,
4555 bfd_mach_o_segment_command *seg = &command->command.segment;
4560 struct mach_o_segment_command_64_external raw;
4562 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
4564 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4567 memcpy (seg->segname, raw.segname, 16);
4568 seg->segname[16] = '\0';
4570 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4571 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4572 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4573 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4574 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4575 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4576 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4577 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4581 struct mach_o_segment_command_32_external raw;
4583 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4585 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4588 memcpy (seg->segname, raw.segname, 16);
4589 seg->segname[16] = '\0';
4591 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4592 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4593 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4594 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4595 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4596 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4597 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4598 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4600 seg->sect_head = NULL;
4601 seg->sect_tail = NULL;
4603 for (i = 0; i < seg->nsects; i++)
4607 sec = bfd_mach_o_read_section (abfd, seg->initprot, wide);
4611 bfd_mach_o_append_section_to_segment
4612 (seg, bfd_mach_o_get_mach_o_section (sec));
4619 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
4621 return bfd_mach_o_read_segment (abfd, command, 0);
4625 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
4627 return bfd_mach_o_read_segment (abfd, command, 1);
4631 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
4633 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4634 struct mach_o_load_command_external raw;
4637 /* Read command type and length. */
4638 if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0
4639 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
4642 cmd = bfd_h_get_32 (abfd, raw.cmd);
4643 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4644 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4645 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
4647 switch (command->type)
4649 case BFD_MACH_O_LC_SEGMENT:
4650 if (!bfd_mach_o_read_segment_32 (abfd, command))
4653 case BFD_MACH_O_LC_SEGMENT_64:
4654 if (!bfd_mach_o_read_segment_64 (abfd, command))
4657 case BFD_MACH_O_LC_SYMTAB:
4658 if (!bfd_mach_o_read_symtab (abfd, command))
4661 case BFD_MACH_O_LC_SYMSEG:
4663 case BFD_MACH_O_LC_THREAD:
4664 case BFD_MACH_O_LC_UNIXTHREAD:
4665 if (!bfd_mach_o_read_thread (abfd, command))
4668 case BFD_MACH_O_LC_LOAD_DYLINKER:
4669 case BFD_MACH_O_LC_ID_DYLINKER:
4670 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
4671 if (!bfd_mach_o_read_dylinker (abfd, command))
4674 case BFD_MACH_O_LC_LOAD_DYLIB:
4675 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
4676 case BFD_MACH_O_LC_ID_DYLIB:
4677 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
4678 case BFD_MACH_O_LC_REEXPORT_DYLIB:
4679 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
4680 if (!bfd_mach_o_read_dylib (abfd, command))
4683 case BFD_MACH_O_LC_PREBOUND_DYLIB:
4684 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4687 case BFD_MACH_O_LC_LOADFVMLIB:
4688 case BFD_MACH_O_LC_IDFVMLIB:
4689 if (!bfd_mach_o_read_fvmlib (abfd, command))
4692 case BFD_MACH_O_LC_IDENT:
4693 case BFD_MACH_O_LC_FVMFILE:
4694 case BFD_MACH_O_LC_PREPAGE:
4695 case BFD_MACH_O_LC_ROUTINES:
4696 case BFD_MACH_O_LC_ROUTINES_64:
4698 case BFD_MACH_O_LC_SUB_FRAMEWORK:
4699 case BFD_MACH_O_LC_SUB_UMBRELLA:
4700 case BFD_MACH_O_LC_SUB_LIBRARY:
4701 case BFD_MACH_O_LC_SUB_CLIENT:
4702 case BFD_MACH_O_LC_RPATH:
4703 if (!bfd_mach_o_read_str (abfd, command))
4706 case BFD_MACH_O_LC_DYSYMTAB:
4707 if (!bfd_mach_o_read_dysymtab (abfd, command))
4710 case BFD_MACH_O_LC_PREBIND_CKSUM:
4711 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4714 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
4715 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4718 case BFD_MACH_O_LC_UUID:
4719 if (!bfd_mach_o_read_uuid (abfd, command))
4722 case BFD_MACH_O_LC_CODE_SIGNATURE:
4723 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
4724 case BFD_MACH_O_LC_FUNCTION_STARTS:
4725 case BFD_MACH_O_LC_DATA_IN_CODE:
4726 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
4727 case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT:
4728 if (!bfd_mach_o_read_linkedit (abfd, command))
4731 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4732 if (!bfd_mach_o_read_encryption_info (abfd, command))
4735 case BFD_MACH_O_LC_ENCRYPTION_INFO_64:
4736 if (!bfd_mach_o_read_encryption_info_64 (abfd, command))
4739 case BFD_MACH_O_LC_DYLD_INFO:
4740 if (!bfd_mach_o_read_dyld_info (abfd, command))
4743 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4744 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4745 case BFD_MACH_O_LC_VERSION_MIN_WATCHOS:
4746 if (!bfd_mach_o_read_version_min (abfd, command))
4749 case BFD_MACH_O_LC_MAIN:
4750 if (!bfd_mach_o_read_main (abfd, command))
4753 case BFD_MACH_O_LC_SOURCE_VERSION:
4754 if (!bfd_mach_o_read_source_version (abfd, command))
4759 _bfd_error_handler (_("%B: unknown load command %#x"),
4760 abfd, command->type);
4768 bfd_mach_o_flatten_sections (bfd *abfd)
4770 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4771 bfd_mach_o_load_command *cmd;
4774 /* Count total number of sections. */
4777 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4779 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4780 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4782 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4784 mdata->nsects += seg->nsects;
4788 /* Allocate sections array. */
4789 mdata->sections = bfd_alloc2 (abfd,
4790 mdata->nsects, sizeof (bfd_mach_o_section *));
4792 /* Fill the array. */
4795 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4797 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4798 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4800 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4801 bfd_mach_o_section *sec;
4803 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4805 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4806 mdata->sections[csect++] = sec;
4812 bfd_mach_o_scan_start_address (bfd *abfd)
4814 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4815 bfd_mach_o_thread_command *thr = NULL;
4816 bfd_mach_o_load_command *cmd;
4819 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4820 if (cmd->type == BFD_MACH_O_LC_THREAD
4821 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
4823 thr = &cmd->command.thread;
4826 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
4828 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
4829 bfd_mach_o_section *text_sect = mdata->sections[0];
4833 abfd->start_address = main_cmd->entryoff
4834 + (text_sect->addr - text_sect->offset);
4839 /* An object file has no start address, so do not fail if not found. */
4843 /* FIXME: create a subtarget hook ? */
4844 for (i = 0; i < thr->nflavours; i++)
4846 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
4847 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
4849 unsigned char buf[4];
4851 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
4852 || bfd_bread (buf, 4, abfd) != 4)
4855 abfd->start_address = bfd_h_get_32 (abfd, buf);
4857 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
4858 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
4860 unsigned char buf[4];
4862 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4863 || bfd_bread (buf, 4, abfd) != 4)
4866 abfd->start_address = bfd_h_get_32 (abfd, buf);
4868 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
4869 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
4871 unsigned char buf[8];
4873 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
4874 || bfd_bread (buf, 8, abfd) != 8)
4877 abfd->start_address = bfd_h_get_64 (abfd, buf);
4879 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
4880 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
4882 unsigned char buf[8];
4884 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
4885 || bfd_bread (buf, 8, abfd) != 8)
4888 abfd->start_address = bfd_h_get_64 (abfd, buf);
4896 bfd_mach_o_set_arch_mach (bfd *abfd,
4897 enum bfd_architecture arch,
4898 unsigned long machine)
4900 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
4902 /* If this isn't the right architecture for this backend, and this
4903 isn't the generic backend, fail. */
4904 if (arch != bed->arch
4905 && arch != bfd_arch_unknown
4906 && bed->arch != bfd_arch_unknown)
4909 return bfd_default_set_arch_mach (abfd, arch, machine);
4913 bfd_mach_o_scan (bfd *abfd,
4914 bfd_mach_o_header *header,
4915 bfd_mach_o_data_struct *mdata)
4918 enum bfd_architecture cputype;
4919 unsigned long cpusubtype;
4920 unsigned int hdrsize;
4922 hdrsize = mach_o_wide_p (header) ?
4923 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
4925 mdata->header = *header;
4927 abfd->flags = abfd->flags & BFD_IN_MEMORY;
4928 switch (header->filetype)
4930 case BFD_MACH_O_MH_OBJECT:
4931 abfd->flags |= HAS_RELOC;
4933 case BFD_MACH_O_MH_EXECUTE:
4934 abfd->flags |= EXEC_P;
4936 case BFD_MACH_O_MH_DYLIB:
4937 case BFD_MACH_O_MH_BUNDLE:
4938 abfd->flags |= DYNAMIC;
4942 abfd->tdata.mach_o_data = mdata;
4944 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
4945 &cputype, &cpusubtype);
4946 if (cputype == bfd_arch_unknown)
4949 /* xgettext:c-format */
4950 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
4951 header->cputype, header->cpusubtype);
4955 bfd_set_arch_mach (abfd, cputype, cpusubtype);
4957 if (header->ncmds != 0)
4959 bfd_mach_o_load_command *cmd;
4961 mdata->first_command = NULL;
4962 mdata->last_command = NULL;
4964 cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command));
4968 for (i = 0; i < header->ncmds; i++)
4970 bfd_mach_o_load_command *cur = &cmd[i];
4972 bfd_mach_o_append_command (abfd, cur);
4975 cur->offset = hdrsize;
4978 bfd_mach_o_load_command *prev = &cmd[i - 1];
4979 cur->offset = prev->offset + prev->len;
4982 if (!bfd_mach_o_read_command (abfd, cur))
4987 /* Sections should be flatten before scanning start address. */
4988 bfd_mach_o_flatten_sections (abfd);
4989 if (!bfd_mach_o_scan_start_address (abfd))
4996 bfd_mach_o_mkobject_init (bfd *abfd)
4998 bfd_mach_o_data_struct *mdata = NULL;
5000 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
5003 abfd->tdata.mach_o_data = mdata;
5005 mdata->header.magic = 0;
5006 mdata->header.cputype = 0;
5007 mdata->header.cpusubtype = 0;
5008 mdata->header.filetype = 0;
5009 mdata->header.ncmds = 0;
5010 mdata->header.sizeofcmds = 0;
5011 mdata->header.flags = 0;
5012 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
5013 mdata->first_command = NULL;
5014 mdata->last_command = NULL;
5016 mdata->sections = NULL;
5017 mdata->dyn_reloc_cache = NULL;
5023 bfd_mach_o_gen_mkobject (bfd *abfd)
5025 bfd_mach_o_data_struct *mdata;
5027 if (!bfd_mach_o_mkobject_init (abfd))
5030 mdata = bfd_mach_o_get_data (abfd);
5031 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
5032 mdata->header.cputype = 0;
5033 mdata->header.cpusubtype = 0;
5034 mdata->header.byteorder = abfd->xvec->byteorder;
5035 mdata->header.version = 1;
5041 bfd_mach_o_header_p (bfd *abfd,
5043 bfd_mach_o_filetype filetype,
5044 bfd_mach_o_cpu_type cputype)
5046 bfd_mach_o_header header;
5047 bfd_mach_o_data_struct *mdata;
5049 if (!bfd_mach_o_read_header (abfd, hdr_off, &header))
5052 if (! (header.byteorder == BFD_ENDIAN_BIG
5053 || header.byteorder == BFD_ENDIAN_LITTLE))
5055 _bfd_error_handler (_("unknown header byte-order value %#x"),
5060 if (! ((header.byteorder == BFD_ENDIAN_BIG
5061 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
5062 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
5063 || (header.byteorder == BFD_ENDIAN_LITTLE
5064 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
5065 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
5068 /* Check cputype and filetype.
5069 In case of wildcard, do not accept magics that are handled by existing
5073 if (header.cputype != cputype)
5079 /* Do not recognize 64 architectures if not configured for 64bit targets.
5080 This could happen only for generic targets. */
5081 if (mach_o_wide_p (&header))
5088 if (header.filetype != filetype)
5093 switch (header.filetype)
5095 case BFD_MACH_O_MH_CORE:
5096 /* Handled by core_p */
5103 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5106 mdata->hdr_offset = hdr_off;
5108 if (!bfd_mach_o_scan (abfd, &header, mdata))
5114 bfd_set_error (bfd_error_wrong_format);
5120 static const bfd_target *
5121 bfd_mach_o_gen_object_p (bfd *abfd)
5123 return bfd_mach_o_header_p (abfd, 0, 0, 0);
5126 static const bfd_target *
5127 bfd_mach_o_gen_core_p (bfd *abfd)
5129 return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0);
5132 /* Return the base address of ABFD, ie the address at which the image is
5133 mapped. The possible initial pagezero is ignored. */
5136 bfd_mach_o_get_base_address (bfd *abfd)
5138 bfd_mach_o_data_struct *mdata;
5139 bfd_mach_o_load_command *cmd;
5141 /* Check for Mach-O. */
5142 if (!bfd_mach_o_valid (abfd))
5144 mdata = bfd_mach_o_get_data (abfd);
5146 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5148 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5149 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5151 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5153 if (segcmd->initprot != 0)
5154 return segcmd->vmaddr;
5160 typedef struct mach_o_fat_archentry
5162 unsigned long cputype;
5163 unsigned long cpusubtype;
5164 unsigned long offset;
5166 unsigned long align;
5167 } mach_o_fat_archentry;
5169 typedef struct mach_o_fat_data_struct
5171 unsigned long magic;
5172 unsigned long nfat_arch;
5173 mach_o_fat_archentry *archentries;
5174 } mach_o_fat_data_struct;
5177 bfd_mach_o_fat_archive_p (bfd *abfd)
5179 mach_o_fat_data_struct *adata = NULL;
5180 struct mach_o_fat_header_external hdr;
5183 if (bfd_seek (abfd, 0, SEEK_SET) != 0
5184 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
5187 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
5191 adata->magic = bfd_getb32 (hdr.magic);
5192 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
5193 if (adata->magic != 0xcafebabe)
5195 /* Avoid matching Java bytecode files, which have the same magic number.
5196 In the Java bytecode file format this field contains the JVM version,
5197 which starts at 43.0. */
5198 if (adata->nfat_arch > 30)
5201 adata->archentries =
5202 bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry));
5203 if (adata->archentries == NULL)
5206 for (i = 0; i < adata->nfat_arch; i++)
5208 struct mach_o_fat_arch_external arch;
5209 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
5211 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5212 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5213 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5214 adata->archentries[i].size = bfd_getb32 (arch.size);
5215 adata->archentries[i].align = bfd_getb32 (arch.align);
5218 abfd->tdata.mach_o_fat_data = adata;
5224 bfd_release (abfd, adata);
5225 bfd_set_error (bfd_error_wrong_format);
5229 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5230 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5231 Set arelt_data and origin fields too. */
5234 bfd_mach_o_fat_member_init (bfd *abfd,
5235 enum bfd_architecture arch_type,
5236 unsigned long arch_subtype,
5237 mach_o_fat_archentry *entry)
5239 struct areltdata *areltdata;
5240 /* Create the member filename. Use ARCH_NAME. */
5241 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5245 /* Use the architecture name if known. */
5246 abfd->filename = xstrdup (ap->printable_name);
5250 /* Forge a uniq id. */
5251 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
5252 char *name = xmalloc (namelen);
5253 snprintf (name, namelen, "0x%lx-0x%lx",
5254 entry->cputype, entry->cpusubtype);
5255 abfd->filename = name;
5258 areltdata = bfd_zmalloc (sizeof (struct areltdata));
5259 areltdata->parsed_size = entry->size;
5260 abfd->arelt_data = areltdata;
5261 abfd->iostream = NULL;
5262 abfd->origin = entry->offset;
5266 bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev)
5268 mach_o_fat_data_struct *adata;
5269 mach_o_fat_archentry *entry = NULL;
5272 enum bfd_architecture arch_type;
5273 unsigned long arch_subtype;
5275 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
5276 BFD_ASSERT (adata != NULL);
5278 /* Find index of previous entry. */
5281 /* Start at first one. */
5286 /* Find index of PREV. */
5287 for (i = 0; i < adata->nfat_arch; i++)
5289 if (adata->archentries[i].offset == prev->origin)
5293 if (i == adata->nfat_arch)
5296 bfd_set_error (bfd_error_bad_value);
5300 /* Get next entry. */
5304 if (i >= adata->nfat_arch)
5306 bfd_set_error (bfd_error_no_more_archived_files);
5310 entry = &adata->archentries[i];
5311 nbfd = _bfd_new_bfd_contained_in (archive);
5315 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5316 &arch_type, &arch_subtype);
5318 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5320 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
5325 /* Analogous to stat call. */
5328 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5330 if (abfd->arelt_data == NULL)
5332 bfd_set_error (bfd_error_invalid_operation);
5339 buf->st_mode = 0644;
5340 buf->st_size = arelt_size (abfd);
5345 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5346 If ABFD is a fat image containing a member that corresponds to FORMAT
5347 and ARCH, returns it.
5348 In other case, returns NULL.
5349 This function allows transparent uses of fat images. */
5352 bfd_mach_o_fat_extract (bfd *abfd,
5354 const bfd_arch_info_type *arch)
5357 mach_o_fat_data_struct *adata;
5360 if (bfd_check_format (abfd, format))
5362 if (bfd_get_arch_info (abfd) == arch)
5366 if (!bfd_check_format (abfd, bfd_archive)
5367 || abfd->xvec != &mach_o_fat_vec)
5370 /* This is a Mach-O fat image. */
5371 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5372 BFD_ASSERT (adata != NULL);
5374 for (i = 0; i < adata->nfat_arch; i++)
5376 struct mach_o_fat_archentry *e = &adata->archentries[i];
5377 enum bfd_architecture cpu_type;
5378 unsigned long cpu_subtype;
5380 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5381 &cpu_type, &cpu_subtype);
5382 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5385 /* The architecture is found. */
5386 res = _bfd_new_bfd_contained_in (abfd);
5390 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
5392 if (bfd_check_format (res, format))
5394 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5405 bfd_mach_o_lookup_command (bfd *abfd,
5406 bfd_mach_o_load_command_type type,
5407 bfd_mach_o_load_command **mcommand)
5409 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5410 struct bfd_mach_o_load_command *cmd;
5413 BFD_ASSERT (mdata != NULL);
5414 BFD_ASSERT (mcommand != NULL);
5417 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5419 if (cmd->type != type)
5431 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
5435 case BFD_MACH_O_CPU_TYPE_MC680x0:
5437 case BFD_MACH_O_CPU_TYPE_MC88000:
5439 case BFD_MACH_O_CPU_TYPE_POWERPC:
5441 case BFD_MACH_O_CPU_TYPE_I386:
5443 case BFD_MACH_O_CPU_TYPE_SPARC:
5445 case BFD_MACH_O_CPU_TYPE_I860:
5447 case BFD_MACH_O_CPU_TYPE_HPPA:
5448 return 0xc0000000 - 0x04000000;
5454 /* The following two tables should be kept, as far as possible, in order of
5455 most frequently used entries to optimize their use from gas. */
5457 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
5459 { "regular", BFD_MACH_O_S_REGULAR},
5460 { "coalesced", BFD_MACH_O_S_COALESCED},
5461 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5462 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5463 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5464 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
5465 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
5466 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
5467 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5468 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
5469 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5470 { "interposing", BFD_MACH_O_S_INTERPOSING},
5471 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
5472 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5473 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
5474 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
5475 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5479 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
5481 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5482 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
5483 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5484 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
5485 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
5486 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5487 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5488 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5489 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
5490 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5491 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5495 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5498 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
5500 const bfd_mach_o_xlat_name *x;
5501 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5503 for (x = bfd_mach_o_section_type_name; x->name; x++)
5504 if (strcmp (x->name, name) == 0)
5506 /* We found it... does the target support it? */
5507 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5508 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5509 return x->val; /* OK. */
5511 break; /* Not supported. */
5513 /* Maximum section ID = 0xff. */
5517 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5520 bfd_mach_o_get_section_attribute_from_name (const char *name)
5522 const bfd_mach_o_xlat_name *x;
5524 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5525 if (strcmp (x->name, name) == 0)
5527 return (unsigned int)-1;
5531 bfd_mach_o_core_fetch_environment (bfd *abfd,
5532 unsigned char **rbuf,
5535 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5536 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
5537 bfd_mach_o_load_command *cmd;
5539 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5541 bfd_mach_o_segment_command *seg;
5543 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
5546 seg = &cmd->command.segment;
5548 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5550 unsigned long start = seg->fileoff;
5551 unsigned long end = seg->fileoff + seg->filesize;
5552 unsigned char *buf = bfd_malloc (1024);
5553 unsigned long size = 1024;
5557 bfd_size_type nread = 0;
5558 unsigned long offset;
5559 int found_nonnull = 0;
5561 if (size > (end - start))
5562 size = (end - start);
5564 buf = bfd_realloc_or_free (buf, size);
5568 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5574 nread = bfd_bread (buf, size, abfd);
5582 for (offset = 4; offset <= size; offset += 4)
5586 val = *((unsigned long *) (buf + size - offset));
5587 if (! found_nonnull)
5592 else if (val == 0x0)
5594 unsigned long bottom;
5597 bottom = seg->fileoff + seg->filesize - offset;
5598 top = seg->fileoff + seg->filesize - 4;
5599 *rbuf = bfd_malloc (top - bottom);
5600 *rlen = top - bottom;
5602 memcpy (*rbuf, buf + size - *rlen, *rlen);
5608 if (size == (end - start))
5622 bfd_mach_o_core_file_failing_command (bfd *abfd)
5624 unsigned char *buf = NULL;
5625 unsigned int len = 0;
5628 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5632 return (char *) buf;
5636 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
5641 static bfd_mach_o_uuid_command *
5642 bfd_mach_o_lookup_uuid_command (bfd *abfd)
5644 bfd_mach_o_load_command *uuid_cmd = NULL;
5645 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5646 if (ncmd != 1 || uuid_cmd == NULL)
5648 return &uuid_cmd->command.uuid;
5651 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5654 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5656 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5659 BFD_ASSERT (uuid_cmd);
5661 if (!bfd_check_format (abfd, bfd_object))
5664 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5665 || bfd_mach_o_get_data (abfd) == NULL
5666 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5669 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5670 if (dsym_uuid_cmd == NULL)
5673 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5674 sizeof (uuid_cmd->uuid)) != 0)
5680 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5681 The caller is responsible for closing the returned BFD object and
5682 its my_archive if the returned BFD is in a fat dSYM. */
5685 bfd_mach_o_find_dsym (const char *dsym_filename,
5686 const bfd_mach_o_uuid_command *uuid_cmd,
5687 const bfd_arch_info_type *arch)
5689 bfd *base_dsym_bfd, *dsym_bfd;
5691 BFD_ASSERT (uuid_cmd);
5693 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5694 if (base_dsym_bfd == NULL)
5697 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5698 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5701 bfd_close (dsym_bfd);
5702 if (base_dsym_bfd != dsym_bfd)
5703 bfd_close (base_dsym_bfd);
5708 /* Return a BFD created from a dSYM file for ABFD.
5709 The caller is responsible for closing the returned BFD object, its
5710 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5713 bfd_mach_o_follow_dsym (bfd *abfd)
5715 char *dsym_filename;
5716 bfd_mach_o_uuid_command *uuid_cmd;
5717 bfd *dsym_bfd, *base_bfd = abfd;
5718 const char *base_basename;
5720 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5723 if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive))
5724 base_bfd = abfd->my_archive;
5725 /* BFD may have been opened from a stream. */
5726 if (base_bfd->filename == NULL)
5728 bfd_set_error (bfd_error_invalid_operation);
5731 base_basename = lbasename (base_bfd->filename);
5733 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5734 if (uuid_cmd == NULL)
5737 /* TODO: We assume the DWARF file has the same as the binary's.
5738 It seems apple's GDB checks all files in the dSYM bundle directory.
5739 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5741 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5742 + strlen (dsym_subdir) + 1
5743 + strlen (base_basename) + 1);
5744 sprintf (dsym_filename, "%s%s/%s",
5745 base_bfd->filename, dsym_subdir, base_basename);
5747 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5748 bfd_get_arch_info (abfd));
5749 if (dsym_bfd == NULL)
5750 free (dsym_filename);
5756 bfd_mach_o_find_nearest_line (bfd *abfd,
5760 const char **filename_ptr,
5761 const char **functionname_ptr,
5762 unsigned int *line_ptr,
5763 unsigned int *discriminator_ptr)
5765 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5768 switch (mdata->header.filetype)
5770 case BFD_MACH_O_MH_OBJECT:
5772 case BFD_MACH_O_MH_EXECUTE:
5773 case BFD_MACH_O_MH_DYLIB:
5774 case BFD_MACH_O_MH_BUNDLE:
5775 case BFD_MACH_O_MH_KEXT_BUNDLE:
5776 if (mdata->dwarf2_find_line_info == NULL)
5778 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5779 /* When we couldn't find dSYM for this binary, we look for
5780 the debug information in the binary itself. In this way,
5781 we won't try finding separated dSYM again because
5782 mdata->dwarf2_find_line_info will be filled. */
5783 if (! mdata->dsym_bfd)
5785 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5786 dwarf_debug_sections, symbols,
5787 &mdata->dwarf2_find_line_info,
5795 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5796 filename_ptr, functionname_ptr,
5797 line_ptr, discriminator_ptr,
5798 dwarf_debug_sections, 0,
5799 &mdata->dwarf2_find_line_info);
5803 bfd_mach_o_close_and_cleanup (bfd *abfd)
5805 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5806 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
5808 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5809 bfd_mach_o_free_cached_info (abfd);
5810 if (mdata->dsym_bfd != NULL)
5812 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5814 /* FIXME: PR 19435: This calculation to find the memory allocated by
5815 bfd_mach_o_follow_dsym for the filename does not always end up
5816 selecting the correct pointer. Unfortunately this problem is
5817 very hard to reproduce on a non Mach-O native system, so until it
5818 can be traced and fixed on such a system, this code will remain
5819 commented out. This does mean that there will be a memory leak,
5820 but it is small, and happens when we are closing down, so it
5821 should not matter too much. */
5822 char *dsym_filename = (char *)(fat_bfd
5824 : mdata->dsym_bfd->filename);
5826 bfd_close (mdata->dsym_bfd);
5827 mdata->dsym_bfd = NULL;
5829 bfd_close (fat_bfd);
5831 free (dsym_filename);
5836 return _bfd_generic_close_and_cleanup (abfd);
5839 bfd_boolean bfd_mach_o_free_cached_info (bfd *abfd)
5841 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5843 free (mdata->dyn_reloc_cache);
5844 mdata->dyn_reloc_cache = NULL;
5845 for (asect = abfd->sections; asect != NULL; asect = asect->next)
5847 free (asect->relocation);
5848 asect->relocation = NULL;
5854 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
5855 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
5857 #define bfd_mach_o_canonicalize_one_reloc NULL
5858 #define bfd_mach_o_swap_reloc_out NULL
5859 #define bfd_mach_o_print_thread NULL
5860 #define bfd_mach_o_tgt_seg_table NULL
5861 #define bfd_mach_o_section_type_valid_for_tgt NULL
5863 #define TARGET_NAME mach_o_be_vec
5864 #define TARGET_STRING "mach-o-be"
5865 #define TARGET_ARCHITECTURE bfd_arch_unknown
5866 #define TARGET_PAGESIZE 1
5867 #define TARGET_BIG_ENDIAN 1
5868 #define TARGET_ARCHIVE 0
5869 #define TARGET_PRIORITY 1
5870 #include "mach-o-target.c"
5873 #undef TARGET_STRING
5874 #undef TARGET_ARCHITECTURE
5875 #undef TARGET_PAGESIZE
5876 #undef TARGET_BIG_ENDIAN
5877 #undef TARGET_ARCHIVE
5878 #undef TARGET_PRIORITY
5880 #define TARGET_NAME mach_o_le_vec
5881 #define TARGET_STRING "mach-o-le"
5882 #define TARGET_ARCHITECTURE bfd_arch_unknown
5883 #define TARGET_PAGESIZE 1
5884 #define TARGET_BIG_ENDIAN 0
5885 #define TARGET_ARCHIVE 0
5886 #define TARGET_PRIORITY 1
5888 #include "mach-o-target.c"
5891 #undef TARGET_STRING
5892 #undef TARGET_ARCHITECTURE
5893 #undef TARGET_PAGESIZE
5894 #undef TARGET_BIG_ENDIAN
5895 #undef TARGET_ARCHIVE
5896 #undef TARGET_PRIORITY
5898 /* Not yet handled: creating an archive. */
5899 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
5901 #define bfd_mach_o_close_and_cleanup bfd_true
5904 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
5905 #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file
5906 #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p
5908 #define TARGET_NAME mach_o_fat_vec
5909 #define TARGET_STRING "mach-o-fat"
5910 #define TARGET_ARCHITECTURE bfd_arch_unknown
5911 #define TARGET_PAGESIZE 1
5912 #define TARGET_BIG_ENDIAN 1
5913 #define TARGET_ARCHIVE 1
5914 #define TARGET_PRIORITY 0
5916 #include "mach-o-target.c"
5919 #undef TARGET_STRING
5920 #undef TARGET_ARCHITECTURE
5921 #undef TARGET_PAGESIZE
5922 #undef TARGET_BIG_ENDIAN
5923 #undef TARGET_ARCHIVE
5924 #undef TARGET_PRIORITY