1 /* Mach-O support for BFD.
2 Copyright (C) 1999-2018 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
25 #include "libiberty.h"
26 #include "aout/stab_gnu.h"
27 #include "mach-o/reloc.h"
28 #include "mach-o/external.h"
33 #define bfd_mach_o_object_p bfd_mach_o_gen_object_p
34 #define bfd_mach_o_core_p bfd_mach_o_gen_core_p
35 #define bfd_mach_o_mkobject bfd_mach_o_gen_mkobject
37 #define FILE_ALIGN(off, algn) \
38 (((off) + ((file_ptr) 1 << (algn)) - 1) & ((file_ptr) -1U << (algn)))
41 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd);
44 bfd_mach_o_version (bfd *abfd)
46 bfd_mach_o_data_struct *mdata = NULL;
48 BFD_ASSERT (bfd_mach_o_valid (abfd));
49 mdata = bfd_mach_o_get_data (abfd);
51 return mdata->header.version;
55 bfd_mach_o_valid (bfd *abfd)
57 if (abfd == NULL || abfd->xvec == NULL)
60 if (abfd->xvec->flavour != bfd_target_mach_o_flavour)
63 if (bfd_mach_o_get_data (abfd) == NULL)
68 static INLINE bfd_boolean
69 mach_o_wide_p (bfd_mach_o_header *header)
71 switch (header->version)
83 static INLINE bfd_boolean
84 bfd_mach_o_wide_p (bfd *abfd)
86 return mach_o_wide_p (&bfd_mach_o_get_data (abfd)->header);
89 /* Tables to translate well known Mach-O segment/section names to bfd
90 names. Use of canonical names (such as .text or .debug_frame) is required
94 static const mach_o_section_name_xlat text_section_names_xlat[] =
97 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
98 BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS, 0},
99 { ".const", "__const",
100 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
101 BFD_MACH_O_S_ATTR_NONE, 0},
102 { ".static_const", "__static_const",
103 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
104 BFD_MACH_O_S_ATTR_NONE, 0},
105 { ".cstring", "__cstring",
106 SEC_READONLY | SEC_DATA | SEC_LOAD | SEC_MERGE | SEC_STRINGS,
107 BFD_MACH_O_S_CSTRING_LITERALS,
108 BFD_MACH_O_S_ATTR_NONE, 0},
109 { ".literal4", "__literal4",
110 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_4BYTE_LITERALS,
111 BFD_MACH_O_S_ATTR_NONE, 2},
112 { ".literal8", "__literal8",
113 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_8BYTE_LITERALS,
114 BFD_MACH_O_S_ATTR_NONE, 3},
115 { ".literal16", "__literal16",
116 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_16BYTE_LITERALS,
117 BFD_MACH_O_S_ATTR_NONE, 4},
118 { ".constructor", "__constructor",
119 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
120 BFD_MACH_O_S_ATTR_NONE, 0},
121 { ".destructor", "__destructor",
122 SEC_CODE | SEC_LOAD, BFD_MACH_O_S_REGULAR,
123 BFD_MACH_O_S_ATTR_NONE, 0},
124 { ".eh_frame", "__eh_frame",
125 SEC_READONLY | SEC_DATA | SEC_LOAD, BFD_MACH_O_S_COALESCED,
126 BFD_MACH_O_S_ATTR_LIVE_SUPPORT
127 | BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS
128 | BFD_MACH_O_S_ATTR_NO_TOC, 2},
129 { NULL, NULL, 0, 0, 0, 0}
132 /* __DATA Segment. */
133 static const mach_o_section_name_xlat data_section_names_xlat[] =
136 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
137 BFD_MACH_O_S_ATTR_NONE, 0},
139 SEC_NO_FLAGS, BFD_MACH_O_S_ZEROFILL,
140 BFD_MACH_O_S_ATTR_NONE, 0},
141 { ".const_data", "__const",
142 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
143 BFD_MACH_O_S_ATTR_NONE, 0},
144 { ".static_data", "__static_data",
145 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
146 BFD_MACH_O_S_ATTR_NONE, 0},
147 { ".mod_init_func", "__mod_init_func",
148 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS,
149 BFD_MACH_O_S_ATTR_NONE, 2},
150 { ".mod_term_func", "__mod_term_func",
151 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS,
152 BFD_MACH_O_S_ATTR_NONE, 2},
154 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
155 BFD_MACH_O_S_ATTR_NONE, 0},
156 { ".cfstring", "__cfstring",
157 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
158 BFD_MACH_O_S_ATTR_NONE, 2},
159 { NULL, NULL, 0, 0, 0, 0}
162 /* __DWARF Segment. */
163 static const mach_o_section_name_xlat dwarf_section_names_xlat[] =
165 { ".debug_frame", "__debug_frame",
166 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
167 BFD_MACH_O_S_ATTR_DEBUG, 0},
168 { ".debug_info", "__debug_info",
169 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
170 BFD_MACH_O_S_ATTR_DEBUG, 0},
171 { ".debug_abbrev", "__debug_abbrev",
172 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
173 BFD_MACH_O_S_ATTR_DEBUG, 0},
174 { ".debug_aranges", "__debug_aranges",
175 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
176 BFD_MACH_O_S_ATTR_DEBUG, 0},
177 { ".debug_macinfo", "__debug_macinfo",
178 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
179 BFD_MACH_O_S_ATTR_DEBUG, 0},
180 { ".debug_line", "__debug_line",
181 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
182 BFD_MACH_O_S_ATTR_DEBUG, 0},
183 { ".debug_loc", "__debug_loc",
184 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
185 BFD_MACH_O_S_ATTR_DEBUG, 0},
186 { ".debug_pubnames", "__debug_pubnames",
187 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
188 BFD_MACH_O_S_ATTR_DEBUG, 0},
189 { ".debug_pubtypes", "__debug_pubtypes",
190 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
191 BFD_MACH_O_S_ATTR_DEBUG, 0},
192 { ".debug_str", "__debug_str",
193 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
194 BFD_MACH_O_S_ATTR_DEBUG, 0},
195 { ".debug_ranges", "__debug_ranges",
196 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
197 BFD_MACH_O_S_ATTR_DEBUG, 0},
198 { ".debug_macro", "__debug_macro",
199 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
200 BFD_MACH_O_S_ATTR_DEBUG, 0},
201 { ".debug_gdb_scripts", "__debug_gdb_scri",
202 SEC_DEBUGGING, BFD_MACH_O_S_REGULAR,
203 BFD_MACH_O_S_ATTR_DEBUG, 0},
204 { NULL, NULL, 0, 0, 0, 0}
207 /* __OBJC Segment. */
208 static const mach_o_section_name_xlat objc_section_names_xlat[] =
210 { ".objc_class", "__class",
211 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
212 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
213 { ".objc_meta_class", "__meta_class",
214 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
215 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
216 { ".objc_cat_cls_meth", "__cat_cls_meth",
217 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
218 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
219 { ".objc_cat_inst_meth", "__cat_inst_meth",
220 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
221 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
222 { ".objc_protocol", "__protocol",
223 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
224 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
225 { ".objc_string_object", "__string_object",
226 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
227 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
228 { ".objc_cls_meth", "__cls_meth",
229 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
230 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
231 { ".objc_inst_meth", "__inst_meth",
232 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
233 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
234 { ".objc_cls_refs", "__cls_refs",
235 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
236 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
237 { ".objc_message_refs", "__message_refs",
238 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_LITERAL_POINTERS,
239 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
240 { ".objc_symbols", "__symbols",
241 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
242 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
243 { ".objc_category", "__category",
244 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
245 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
246 { ".objc_class_vars", "__class_vars",
247 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
248 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
249 { ".objc_instance_vars", "__instance_vars",
250 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
251 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
252 { ".objc_module_info", "__module_info",
253 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
254 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
255 { ".objc_selector_strs", "__selector_strs",
256 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_CSTRING_LITERALS,
257 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
258 { ".objc_image_info", "__image_info",
259 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
260 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
261 { ".objc_selector_fixup", "__sel_fixup",
262 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
263 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
265 { ".objc1_class_ext", "__class_ext",
266 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
267 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
268 { ".objc1_property_list", "__property",
269 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
270 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
271 { ".objc1_protocol_ext", "__protocol_ext",
272 SEC_DATA | SEC_LOAD, BFD_MACH_O_S_REGULAR,
273 BFD_MACH_O_S_ATTR_NO_DEAD_STRIP, 0},
274 { NULL, NULL, 0, 0, 0, 0}
277 static const mach_o_segment_name_xlat segsec_names_xlat[] =
279 { "__TEXT", text_section_names_xlat },
280 { "__DATA", data_section_names_xlat },
281 { "__DWARF", dwarf_section_names_xlat },
282 { "__OBJC", objc_section_names_xlat },
286 static const char dsym_subdir[] = ".dSYM/Contents/Resources/DWARF";
288 /* For both cases bfd-name => mach-o name and vice versa, the specific target
289 is checked before the generic. This allows a target (e.g. ppc for cstring)
290 to override the generic definition with a more specific one. */
292 /* Fetch the translation from a Mach-O section designation (segment, section)
293 as a bfd short name, if one exists. Otherwise return NULL.
295 Allow the segment and section names to be unterminated 16 byte arrays. */
297 const mach_o_section_name_xlat *
298 bfd_mach_o_section_data_for_mach_sect (bfd *abfd, const char *segname,
299 const char *sectname)
301 const struct mach_o_segment_name_xlat *seg;
302 const mach_o_section_name_xlat *sec;
303 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
305 /* First try any target-specific translations defined... */
306 if (bed->segsec_names_xlat)
307 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
308 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
309 for (sec = seg->sections; sec->mach_o_name; sec++)
310 if (strncmp (sec->mach_o_name, sectname,
311 BFD_MACH_O_SECTNAME_SIZE) == 0)
314 /* ... and then the Mach-O generic ones. */
315 for (seg = segsec_names_xlat; seg->segname; seg++)
316 if (strncmp (seg->segname, segname, BFD_MACH_O_SEGNAME_SIZE) == 0)
317 for (sec = seg->sections; sec->mach_o_name; sec++)
318 if (strncmp (sec->mach_o_name, sectname,
319 BFD_MACH_O_SECTNAME_SIZE) == 0)
325 /* If the bfd_name for this section is a 'canonical' form for which we
326 know the Mach-O data, return the segment name and the data for the
327 Mach-O equivalent. Otherwise return NULL. */
329 const mach_o_section_name_xlat *
330 bfd_mach_o_section_data_for_bfd_name (bfd *abfd, const char *bfd_name,
331 const char **segname)
333 const struct mach_o_segment_name_xlat *seg;
334 const mach_o_section_name_xlat *sec;
335 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
338 if (bfd_name[0] != '.')
341 /* First try any target-specific translations defined... */
342 if (bed->segsec_names_xlat)
343 for (seg = bed->segsec_names_xlat; seg->segname; seg++)
344 for (sec = seg->sections; sec->bfd_name; sec++)
345 if (strcmp (bfd_name, sec->bfd_name) == 0)
347 *segname = seg->segname;
351 /* ... and then the Mach-O generic ones. */
352 for (seg = segsec_names_xlat; seg->segname; seg++)
353 for (sec = seg->sections; sec->bfd_name; sec++)
354 if (strcmp (bfd_name, sec->bfd_name) == 0)
356 *segname = seg->segname;
363 /* Convert Mach-O section name to BFD.
365 Try to use standard/canonical names, for which we have tables including
366 default flag settings - which are returned. Otherwise forge a new name
367 in the form "<segmentname>.<sectionname>" this will be prefixed with
368 LC_SEGMENT. if the segment name does not begin with an underscore.
370 SEGNAME and SECTNAME are 16 byte arrays (they do not need to be NUL-
371 terminated if the name length is exactly 16 bytes - but must be if the name
372 length is less than 16 characters). */
375 bfd_mach_o_convert_section_name_to_bfd (bfd *abfd, const char *segname,
376 const char *secname, const char **name,
379 const mach_o_section_name_xlat *xlat;
382 const char *pfx = "";
385 *flags = SEC_NO_FLAGS;
387 /* First search for a canonical name...
388 xlat will be non-null if there is an entry for segname, secname. */
389 xlat = bfd_mach_o_section_data_for_mach_sect (abfd, segname, secname);
392 len = strlen (xlat->bfd_name);
393 res = bfd_alloc (abfd, len + 1);
396 memcpy (res, xlat->bfd_name, len+1);
398 *flags = xlat->bfd_flags;
402 /* ... else we make up a bfd name from the segment concatenated with the
405 len = 16 + 1 + 16 + 1;
407 /* Put "LC_SEGMENT." prefix if the segment name is weird (ie doesn't start
408 with an underscore. */
409 if (segname[0] != '_')
411 static const char seg_pfx[] = "LC_SEGMENT.";
414 len += sizeof (seg_pfx) - 1;
417 res = bfd_alloc (abfd, len);
420 snprintf (res, len, "%s%.16s.%.16s", pfx, segname, secname);
424 /* Convert a bfd section name to a Mach-O segment + section name.
426 If the name is a canonical one for which we have a Darwin match
427 return the translation table - which contains defaults for flags,
428 type, attribute and default alignment data.
430 Otherwise, expand the bfd_name (assumed to be in the form
431 "[LC_SEGMENT.]<segmentname>.<sectionname>") and return NULL. */
433 static const mach_o_section_name_xlat *
434 bfd_mach_o_convert_section_name_to_mach_o (bfd *abfd ATTRIBUTE_UNUSED,
436 bfd_mach_o_section *section)
438 const mach_o_section_name_xlat *xlat;
439 const char *name = bfd_get_section_name (abfd, sect);
446 memset (section->segname, 0, BFD_MACH_O_SEGNAME_SIZE + 1);
447 memset (section->sectname, 0, BFD_MACH_O_SECTNAME_SIZE + 1);
449 /* See if is a canonical name ... */
450 xlat = bfd_mach_o_section_data_for_bfd_name (abfd, name, &segname);
453 strcpy (section->segname, segname);
454 strcpy (section->sectname, xlat->mach_o_name);
458 /* .. else we convert our constructed one back to Mach-O.
459 Strip LC_SEGMENT. prefix, if present. */
460 if (strncmp (name, "LC_SEGMENT.", 11) == 0)
464 dot = strchr (name, '.');
467 /* Try to split name into segment and section names. */
468 if (dot && dot != name)
471 seclen = len - (dot + 1 - name);
473 if (seglen <= BFD_MACH_O_SEGNAME_SIZE
474 && seclen <= BFD_MACH_O_SECTNAME_SIZE)
476 memcpy (section->segname, name, seglen);
477 section->segname[seglen] = 0;
478 memcpy (section->sectname, dot + 1, seclen);
479 section->sectname[seclen] = 0;
484 /* The segment and section names are both missing - don't make them
486 if (dot && dot == name)
489 /* Just duplicate the name into both segment and section. */
492 memcpy (section->segname, name, len);
493 section->segname[len] = 0;
494 memcpy (section->sectname, name, len);
495 section->sectname[len] = 0;
499 /* Return the size of an entry for section SEC.
500 Must be called only for symbol pointer section and symbol stubs
504 bfd_mach_o_section_get_entry_size (bfd *abfd, bfd_mach_o_section *sec)
506 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
508 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
509 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
510 return bfd_mach_o_wide_p (abfd) ? 8 : 4;
511 case BFD_MACH_O_S_SYMBOL_STUBS:
512 return sec->reserved2;
519 /* Return the number of indirect symbols for a section.
520 Must be called only for symbol pointer section and symbol stubs
524 bfd_mach_o_section_get_nbr_indirect (bfd *abfd, bfd_mach_o_section *sec)
528 elsz = bfd_mach_o_section_get_entry_size (abfd, sec);
532 return sec->size / elsz;
535 /* Append command CMD to ABFD. Note that header.ncmds is not updated. */
538 bfd_mach_o_append_command (bfd *abfd, bfd_mach_o_load_command *cmd)
540 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
542 if (mdata->last_command != NULL)
543 mdata->last_command->next = cmd;
545 mdata->first_command = cmd;
546 mdata->last_command = cmd;
550 /* Copy any private info we understand from the input symbol
551 to the output symbol. */
554 bfd_mach_o_bfd_copy_private_symbol_data (bfd *ibfd ATTRIBUTE_UNUSED,
556 bfd *obfd ATTRIBUTE_UNUSED,
559 bfd_mach_o_asymbol *os, *is;
561 os = (bfd_mach_o_asymbol *)osymbol;
562 is = (bfd_mach_o_asymbol *)isymbol;
563 os->n_type = is->n_type;
564 os->n_sect = is->n_sect;
565 os->n_desc = is->n_desc;
566 os->symbol.udata.i = is->symbol.udata.i;
571 /* Copy any private info we understand from the input section
572 to the output section. */
575 bfd_mach_o_bfd_copy_private_section_data (bfd *ibfd, asection *isection,
576 bfd *obfd, asection *osection)
578 bfd_mach_o_section *os = bfd_mach_o_get_mach_o_section (osection);
579 bfd_mach_o_section *is = bfd_mach_o_get_mach_o_section (isection);
581 if (ibfd->xvec->flavour != bfd_target_mach_o_flavour
582 || obfd->xvec->flavour != bfd_target_mach_o_flavour)
585 BFD_ASSERT (is != NULL && os != NULL);
587 os->flags = is->flags;
588 os->reserved1 = is->reserved1;
589 os->reserved2 = is->reserved2;
590 os->reserved3 = is->reserved3;
596 cputype (unsigned long value)
600 case BFD_MACH_O_CPU_TYPE_VAX: return "VAX";
601 case BFD_MACH_O_CPU_TYPE_MC680x0: return "MC68k";
602 case BFD_MACH_O_CPU_TYPE_I386: return "I386";
603 case BFD_MACH_O_CPU_TYPE_MIPS: return "MIPS";
604 case BFD_MACH_O_CPU_TYPE_MC98000: return "MC98k";
605 case BFD_MACH_O_CPU_TYPE_HPPA: return "HPPA";
606 case BFD_MACH_O_CPU_TYPE_ARM: return "ARM";
607 case BFD_MACH_O_CPU_TYPE_MC88000: return "MC88K";
608 case BFD_MACH_O_CPU_TYPE_SPARC: return "SPARC";
609 case BFD_MACH_O_CPU_TYPE_I860: return "I860";
610 case BFD_MACH_O_CPU_TYPE_ALPHA: return "ALPHA";
611 case BFD_MACH_O_CPU_TYPE_POWERPC: return "PPC";
612 case BFD_MACH_O_CPU_TYPE_POWERPC_64: return "PPC64";
613 case BFD_MACH_O_CPU_TYPE_X86_64: return "X86_64";
614 case BFD_MACH_O_CPU_TYPE_ARM64: return "ARM64";
615 default: return _("<unknown>");
620 cpusubtype (unsigned long cputype, unsigned long cpusubtype)
622 static char buffer[128];
625 switch (cpusubtype & BFD_MACH_O_CPU_SUBTYPE_MASK)
629 case BFD_MACH_O_CPU_SUBTYPE_LIB64:
630 sprintf (buffer, " (LIB64)"); break;
632 sprintf (buffer, _("<unknown mask flags>")); break;
635 cpusubtype &= ~ BFD_MACH_O_CPU_SUBTYPE_MASK;
639 case BFD_MACH_O_CPU_TYPE_X86_64:
640 case BFD_MACH_O_CPU_TYPE_I386:
643 case BFD_MACH_O_CPU_SUBTYPE_X86_ALL:
644 return strcat (buffer, " (X86_ALL)");
650 case BFD_MACH_O_CPU_TYPE_ARM:
653 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
654 return strcat (buffer, " (ARM_ALL)");
655 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
656 return strcat (buffer, " (ARM_V4T)");
657 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
658 return strcat (buffer, " (ARM_V6)");
659 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
660 return strcat (buffer, " (ARM_V5TEJ)");
661 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
662 return strcat (buffer, " (ARM_XSCALE)");
663 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
664 return strcat (buffer, " (ARM_V7)");
670 case BFD_MACH_O_CPU_TYPE_ARM64:
673 case BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL:
674 return strcat (buffer, " (ARM64_ALL)");
675 case BFD_MACH_O_CPU_SUBTYPE_ARM64_V8:
676 return strcat (buffer, " (ARM64_V8)");
687 return strcat (buffer, _(" (<unknown>)"));
693 bfd_mach_o_bfd_print_private_bfd_data (bfd *abfd, void *ptr)
695 FILE * file = (FILE *) ptr;
696 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
698 fprintf (file, _(" MACH-O header:\n"));
699 fprintf (file, _(" magic: %#lx\n"), (long) mdata->header.magic);
700 fprintf (file, _(" cputype: %#lx (%s)\n"), (long) mdata->header.cputype,
701 cputype (mdata->header.cputype));
702 fprintf (file, _(" cpusubtype: %#lx%s\n"), (long) mdata->header.cpusubtype,
703 cpusubtype (mdata->header.cputype, mdata->header.cpusubtype));
704 fprintf (file, _(" filetype: %#lx\n"), (long) mdata->header.filetype);
705 fprintf (file, _(" ncmds: %#lx\n"), (long) mdata->header.ncmds);
706 fprintf (file, _(" sizeocmds: %#lx\n"), (long) mdata->header.sizeofcmds);
707 fprintf (file, _(" flags: %#lx\n"), (long) mdata->header.flags);
708 fprintf (file, _(" version: %x\n"), mdata->header.version);
713 /* Copy any private info we understand from the input bfd
714 to the output bfd. */
717 bfd_mach_o_bfd_copy_private_header_data (bfd *ibfd, bfd *obfd)
719 bfd_mach_o_data_struct *imdata;
720 bfd_mach_o_data_struct *omdata;
721 bfd_mach_o_load_command *icmd;
723 if (bfd_get_flavour (ibfd) != bfd_target_mach_o_flavour
724 || bfd_get_flavour (obfd) != bfd_target_mach_o_flavour)
727 BFD_ASSERT (bfd_mach_o_valid (ibfd));
728 BFD_ASSERT (bfd_mach_o_valid (obfd));
730 imdata = bfd_mach_o_get_data (ibfd);
731 omdata = bfd_mach_o_get_data (obfd);
733 /* Copy header flags. */
734 omdata->header.flags = imdata->header.flags;
736 /* PR 23299. Copy the cputype. */
737 if (imdata->header.cputype != omdata->header.cputype)
739 if (omdata->header.cputype == 0)
740 omdata->header.cputype = imdata->header.cputype;
741 else if (imdata->header.cputype != 0)
742 /* Urg - what has happened ? */
743 _bfd_error_handler (_("incompatible cputypes in mach-o files: %ld vs %ld"),
744 (long) imdata->header.cputype,
745 (long) omdata->header.cputype);
748 /* Copy the cpusubtype. */
749 omdata->header.cpusubtype = imdata->header.cpusubtype;
752 for (icmd = imdata->first_command; icmd != NULL; icmd = icmd->next)
754 bfd_mach_o_load_command *ocmd;
758 case BFD_MACH_O_LC_LOAD_DYLIB:
759 case BFD_MACH_O_LC_LOAD_DYLINKER:
760 case BFD_MACH_O_LC_DYLD_INFO:
761 /* Command is copied. */
762 ocmd = bfd_alloc (obfd, sizeof (bfd_mach_o_load_command));
766 /* Copy common fields. */
767 ocmd->type = icmd->type;
768 ocmd->type_required = icmd->type_required;
770 ocmd->len = icmd->len;
774 /* Command is not copied. */
781 case BFD_MACH_O_LC_LOAD_DYLIB:
783 bfd_mach_o_dylib_command *idy = &icmd->command.dylib;
784 bfd_mach_o_dylib_command *ody = &ocmd->command.dylib;
786 ody->name_offset = idy->name_offset;
787 ody->timestamp = idy->timestamp;
788 ody->current_version = idy->current_version;
789 ody->compatibility_version = idy->compatibility_version;
790 ody->name_str = idy->name_str;
794 case BFD_MACH_O_LC_LOAD_DYLINKER:
796 bfd_mach_o_dylinker_command *idy = &icmd->command.dylinker;
797 bfd_mach_o_dylinker_command *ody = &ocmd->command.dylinker;
799 ody->name_offset = idy->name_offset;
800 ody->name_str = idy->name_str;
804 case BFD_MACH_O_LC_DYLD_INFO:
806 bfd_mach_o_dyld_info_command *idy = &icmd->command.dyld_info;
807 bfd_mach_o_dyld_info_command *ody = &ocmd->command.dyld_info;
809 if (bfd_mach_o_read_dyld_content (ibfd, idy))
811 ody->rebase_size = idy->rebase_size;
812 ody->rebase_content = idy->rebase_content;
814 ody->bind_size = idy->bind_size;
815 ody->bind_content = idy->bind_content;
817 ody->weak_bind_size = idy->weak_bind_size;
818 ody->weak_bind_content = idy->weak_bind_content;
820 ody->lazy_bind_size = idy->lazy_bind_size;
821 ody->lazy_bind_content = idy->lazy_bind_content;
823 ody->export_size = idy->export_size;
824 ody->export_content = idy->export_content;
826 /* PR 17512L: file: 730e492d. */
831 ody->weak_bind_size =
832 ody->lazy_bind_size =
833 ody->export_size = 0;
834 ody->rebase_content =
836 ody->weak_bind_content =
837 ody->lazy_bind_content =
838 ody->export_content = NULL;
844 /* That command should be handled. */
848 /* Insert command. */
849 bfd_mach_o_append_command (obfd, ocmd);
855 /* This allows us to set up to 32 bits of flags (unless we invent some
856 fiendish scheme to subdivide). For now, we'll just set the file flags
857 without error checking - just overwrite. */
860 bfd_mach_o_bfd_set_private_flags (bfd *abfd, flagword flags)
862 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
867 mdata->header.flags = flags;
871 /* Count the total number of symbols. */
874 bfd_mach_o_count_symbols (bfd *abfd)
876 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
878 if (mdata->symtab == NULL)
880 return mdata->symtab->nsyms;
884 bfd_mach_o_get_symtab_upper_bound (bfd *abfd)
886 long nsyms = bfd_mach_o_count_symbols (abfd);
888 return ((nsyms + 1) * sizeof (asymbol *));
892 bfd_mach_o_canonicalize_symtab (bfd *abfd, asymbol **alocation)
894 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
895 long nsyms = bfd_mach_o_count_symbols (abfd);
896 bfd_mach_o_symtab_command *sym = mdata->symtab;
904 /* Do not try to read symbols if there are none. */
909 if (!bfd_mach_o_read_symtab_symbols (abfd))
912 (_("bfd_mach_o_canonicalize_symtab: unable to load symbols"));
916 BFD_ASSERT (sym->symbols != NULL);
918 for (j = 0; j < sym->nsyms; j++)
919 alocation[j] = &sym->symbols[j].symbol;
926 /* Create synthetic symbols for indirect symbols. */
929 bfd_mach_o_get_synthetic_symtab (bfd *abfd,
930 long symcount ATTRIBUTE_UNUSED,
931 asymbol **syms ATTRIBUTE_UNUSED,
932 long dynsymcount ATTRIBUTE_UNUSED,
933 asymbol **dynsyms ATTRIBUTE_UNUSED,
936 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
937 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
938 bfd_mach_o_symtab_command *symtab = mdata->symtab;
942 unsigned long count, i, j, n;
946 const char stub [] = "$stub";
950 /* Stop now if no symbols or no indirect symbols. */
951 if (dysymtab == NULL || dysymtab->nindirectsyms == 0
952 || symtab == NULL || symtab->symbols == NULL)
955 /* We need to allocate a bfd symbol for every indirect symbol and to
956 allocate the memory for its name. */
957 count = dysymtab->nindirectsyms;
958 size = count * sizeof (asymbol) + 1;
960 for (j = 0; j < count; j++)
963 unsigned int isym = dysymtab->indirect_syms[j];
965 /* Some indirect symbols are anonymous. */
966 if (isym < symtab->nsyms && (strng = symtab->symbols[isym].symbol.name))
967 /* PR 17512: file: f5b8eeba. */
968 size += strnlen (strng, symtab->strsize - (strng - symtab->strtab)) + sizeof (stub);
971 s_start = bfd_malloc (size);
972 s = *ret = (asymbol *) s_start;
975 names = (char *) (s + count);
978 s_end = s_start + size;
981 for (i = 0; i < mdata->nsects; i++)
983 bfd_mach_o_section *sec = mdata->sections[i];
984 unsigned int first, last;
988 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
990 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
991 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
992 case BFD_MACH_O_S_SYMBOL_STUBS:
993 /* Only these sections have indirect symbols. */
994 first = sec->reserved1;
995 last = first + bfd_mach_o_section_get_nbr_indirect (abfd, sec);
997 entry_size = bfd_mach_o_section_get_entry_size (abfd, sec);
999 /* PR 17512: file: 08e15eec. */
1000 if (first >= count || last >= count || first > last)
1003 for (j = first; j < last; j++)
1005 unsigned int isym = dysymtab->indirect_syms[j];
1007 /* PR 17512: file: 04d64d9b. */
1008 if (((char *) s) + sizeof (* s) > s_end)
1011 s->flags = BSF_GLOBAL | BSF_SYNTHETIC;
1012 s->section = sec->bfdsection;
1013 s->value = addr - sec->addr;
1016 if (isym < symtab->nsyms
1017 && symtab->symbols[isym].symbol.name)
1019 const char *sym = symtab->symbols[isym].symbol.name;
1024 /* PR 17512: file: 47dfd4d2. */
1025 if (names + len >= s_end)
1027 memcpy (names, sym, len);
1029 /* PR 17512: file: 18f340a4. */
1030 if (names + sizeof (stub) >= s_end)
1032 memcpy (names, stub, sizeof (stub));
1033 names += sizeof (stub);
1057 bfd_mach_o_get_symbol_info (bfd *abfd ATTRIBUTE_UNUSED,
1061 bfd_symbol_info (symbol, ret);
1065 bfd_mach_o_print_symbol (bfd *abfd,
1068 bfd_print_symbol_type how)
1070 FILE *file = (FILE *) afile;
1072 bfd_mach_o_asymbol *asym = (bfd_mach_o_asymbol *)symbol;
1076 case bfd_print_symbol_name:
1077 fprintf (file, "%s", symbol->name);
1080 bfd_print_symbol_vandf (abfd, (void *) file, symbol);
1081 if (asym->n_type & BFD_MACH_O_N_STAB)
1082 name = bfd_get_stab_name (asym->n_type);
1084 switch (asym->n_type & BFD_MACH_O_N_TYPE)
1086 case BFD_MACH_O_N_UNDF:
1087 if (symbol->value == 0)
1092 case BFD_MACH_O_N_ABS:
1095 case BFD_MACH_O_N_INDR:
1098 case BFD_MACH_O_N_PBUD:
1101 case BFD_MACH_O_N_SECT:
1110 fprintf (file, " %02x %-6s %02x %04x",
1111 asym->n_type, name, asym->n_sect, asym->n_desc);
1112 if ((asym->n_type & BFD_MACH_O_N_STAB) == 0
1113 && (asym->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_SECT)
1114 fprintf (file, " [%s]", symbol->section->name);
1115 fprintf (file, " %s", symbol->name);
1120 bfd_mach_o_convert_architecture (bfd_mach_o_cpu_type mtype,
1121 bfd_mach_o_cpu_subtype msubtype,
1122 enum bfd_architecture *type,
1123 unsigned long *subtype)
1125 *subtype = bfd_arch_unknown;
1129 case BFD_MACH_O_CPU_TYPE_VAX:
1130 *type = bfd_arch_vax;
1132 case BFD_MACH_O_CPU_TYPE_MC680x0:
1133 *type = bfd_arch_m68k;
1135 case BFD_MACH_O_CPU_TYPE_I386:
1136 *type = bfd_arch_i386;
1137 *subtype = bfd_mach_i386_i386;
1139 case BFD_MACH_O_CPU_TYPE_X86_64:
1140 *type = bfd_arch_i386;
1141 *subtype = bfd_mach_x86_64;
1143 case BFD_MACH_O_CPU_TYPE_MIPS:
1144 *type = bfd_arch_mips;
1146 case BFD_MACH_O_CPU_TYPE_MC98000:
1147 *type = bfd_arch_m98k;
1149 case BFD_MACH_O_CPU_TYPE_HPPA:
1150 *type = bfd_arch_hppa;
1152 case BFD_MACH_O_CPU_TYPE_ARM:
1153 *type = bfd_arch_arm;
1156 case BFD_MACH_O_CPU_SUBTYPE_ARM_V4T:
1157 *subtype = bfd_mach_arm_4T;
1159 case BFD_MACH_O_CPU_SUBTYPE_ARM_V6:
1160 *subtype = bfd_mach_arm_4T; /* Best fit ? */
1162 case BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ:
1163 *subtype = bfd_mach_arm_5TE;
1165 case BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE:
1166 *subtype = bfd_mach_arm_XScale;
1168 case BFD_MACH_O_CPU_SUBTYPE_ARM_V7:
1169 *subtype = bfd_mach_arm_5TE; /* Best fit ? */
1171 case BFD_MACH_O_CPU_SUBTYPE_ARM_ALL:
1176 case BFD_MACH_O_CPU_TYPE_SPARC:
1177 *type = bfd_arch_sparc;
1178 *subtype = bfd_mach_sparc;
1180 case BFD_MACH_O_CPU_TYPE_ALPHA:
1181 *type = bfd_arch_alpha;
1183 case BFD_MACH_O_CPU_TYPE_POWERPC:
1184 *type = bfd_arch_powerpc;
1185 *subtype = bfd_mach_ppc;
1187 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
1188 *type = bfd_arch_powerpc;
1189 *subtype = bfd_mach_ppc64;
1191 case BFD_MACH_O_CPU_TYPE_ARM64:
1192 *type = bfd_arch_aarch64;
1193 *subtype = bfd_mach_aarch64;
1196 *type = bfd_arch_unknown;
1201 /* Write n NUL bytes to ABFD so that LEN + n is a multiple of 4. Return the
1202 number of bytes written or -1 in case of error. */
1205 bfd_mach_o_pad4 (bfd *abfd, unsigned int len)
1209 char pad[4] = {0,0,0,0};
1210 unsigned int padlen = 4 - (len % 4);
1212 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1221 /* Likewise, but for a command. */
1224 bfd_mach_o_pad_command (bfd *abfd, unsigned int len)
1226 unsigned int align = bfd_mach_o_wide_p (abfd) ? 8 : 4;
1228 if (len % align != 0)
1231 unsigned int padlen = align - (len % align);
1233 if (bfd_bwrite (pad, padlen, abfd) != padlen)
1243 bfd_mach_o_write_header (bfd *abfd, bfd_mach_o_header *header)
1245 struct mach_o_header_external raw;
1248 size = mach_o_wide_p (header) ?
1249 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
1251 bfd_h_put_32 (abfd, header->magic, raw.magic);
1252 bfd_h_put_32 (abfd, header->cputype, raw.cputype);
1253 bfd_h_put_32 (abfd, header->cpusubtype, raw.cpusubtype);
1254 bfd_h_put_32 (abfd, header->filetype, raw.filetype);
1255 bfd_h_put_32 (abfd, header->ncmds, raw.ncmds);
1256 bfd_h_put_32 (abfd, header->sizeofcmds, raw.sizeofcmds);
1257 bfd_h_put_32 (abfd, header->flags, raw.flags);
1259 if (mach_o_wide_p (header))
1260 bfd_h_put_32 (abfd, header->reserved, raw.reserved);
1262 if (bfd_seek (abfd, 0, SEEK_SET) != 0
1263 || bfd_bwrite (&raw, size, abfd) != size)
1270 bfd_mach_o_write_thread (bfd *abfd, bfd_mach_o_load_command *command)
1272 bfd_mach_o_thread_command *cmd = &command->command.thread;
1274 struct mach_o_thread_command_external raw;
1275 unsigned int offset;
1277 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
1278 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
1280 offset = BFD_MACH_O_LC_SIZE;
1281 for (i = 0; i < cmd->nflavours; i++)
1283 BFD_ASSERT ((cmd->flavours[i].size % 4) == 0);
1284 BFD_ASSERT (cmd->flavours[i].offset ==
1285 (command->offset + offset + BFD_MACH_O_LC_SIZE));
1287 bfd_h_put_32 (abfd, cmd->flavours[i].flavour, raw.flavour);
1288 bfd_h_put_32 (abfd, (cmd->flavours[i].size / 4), raw.count);
1290 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
1291 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1294 offset += cmd->flavours[i].size + sizeof (raw);
1301 bfd_mach_o_write_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
1303 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
1304 struct mach_o_str_command_external raw;
1305 unsigned int namelen;
1307 bfd_h_put_32 (abfd, cmd->name_offset, raw.str);
1309 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1310 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1313 namelen = strlen (cmd->name_str) + 1;
1314 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1317 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1324 bfd_mach_o_write_dylib (bfd *abfd, bfd_mach_o_load_command *command)
1326 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
1327 struct mach_o_dylib_command_external raw;
1328 unsigned int namelen;
1330 bfd_h_put_32 (abfd, cmd->name_offset, raw.name);
1331 bfd_h_put_32 (abfd, cmd->timestamp, raw.timestamp);
1332 bfd_h_put_32 (abfd, cmd->current_version, raw.current_version);
1333 bfd_h_put_32 (abfd, cmd->compatibility_version, raw.compatibility_version);
1335 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1336 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1339 namelen = strlen (cmd->name_str) + 1;
1340 if (bfd_bwrite (cmd->name_str, namelen, abfd) != namelen)
1343 if (bfd_mach_o_pad_command (abfd, namelen) < 0)
1350 bfd_mach_o_write_main (bfd *abfd, bfd_mach_o_load_command *command)
1352 bfd_mach_o_main_command *cmd = &command->command.main;
1353 struct mach_o_entry_point_command_external raw;
1355 bfd_h_put_64 (abfd, cmd->entryoff, raw.entryoff);
1356 bfd_h_put_64 (abfd, cmd->stacksize, raw.stacksize);
1358 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1359 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1366 bfd_mach_o_write_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
1368 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
1369 struct mach_o_dyld_info_command_external raw;
1371 bfd_h_put_32 (abfd, cmd->rebase_off, raw.rebase_off);
1372 bfd_h_put_32 (abfd, cmd->rebase_size, raw.rebase_size);
1373 bfd_h_put_32 (abfd, cmd->bind_off, raw.bind_off);
1374 bfd_h_put_32 (abfd, cmd->bind_size, raw.bind_size);
1375 bfd_h_put_32 (abfd, cmd->weak_bind_off, raw.weak_bind_off);
1376 bfd_h_put_32 (abfd, cmd->weak_bind_size, raw.weak_bind_size);
1377 bfd_h_put_32 (abfd, cmd->lazy_bind_off, raw.lazy_bind_off);
1378 bfd_h_put_32 (abfd, cmd->lazy_bind_size, raw.lazy_bind_size);
1379 bfd_h_put_32 (abfd, cmd->export_off, raw.export_off);
1380 bfd_h_put_32 (abfd, cmd->export_size, raw.export_size);
1382 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1383 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1386 if (cmd->rebase_size != 0)
1387 if (bfd_seek (abfd, cmd->rebase_off, SEEK_SET) != 0
1388 || (bfd_bwrite (cmd->rebase_content, cmd->rebase_size, abfd) !=
1392 if (cmd->bind_size != 0)
1393 if (bfd_seek (abfd, cmd->bind_off, SEEK_SET) != 0
1394 || (bfd_bwrite (cmd->bind_content, cmd->bind_size, abfd) !=
1398 if (cmd->weak_bind_size != 0)
1399 if (bfd_seek (abfd, cmd->weak_bind_off, SEEK_SET) != 0
1400 || (bfd_bwrite (cmd->weak_bind_content, cmd->weak_bind_size, abfd) !=
1401 cmd->weak_bind_size))
1404 if (cmd->lazy_bind_size != 0)
1405 if (bfd_seek (abfd, cmd->lazy_bind_off, SEEK_SET) != 0
1406 || (bfd_bwrite (cmd->lazy_bind_content, cmd->lazy_bind_size, abfd) !=
1407 cmd->lazy_bind_size))
1410 if (cmd->export_size != 0)
1411 if (bfd_seek (abfd, cmd->export_off, SEEK_SET) != 0
1412 || (bfd_bwrite (cmd->export_content, cmd->export_size, abfd) !=
1420 bfd_mach_o_get_reloc_upper_bound (bfd *abfd ATTRIBUTE_UNUSED,
1423 return (asect->reloc_count + 1) * sizeof (arelent *);
1426 /* In addition to the need to byte-swap the symbol number, the bit positions
1427 of the fields in the relocation information vary per target endian-ness. */
1430 bfd_mach_o_swap_in_non_scattered_reloc (bfd *abfd, bfd_mach_o_reloc_info *rel,
1431 unsigned char *fields)
1433 unsigned char info = fields[3];
1435 if (bfd_big_endian (abfd))
1437 rel->r_value = (fields[0] << 16) | (fields[1] << 8) | fields[2];
1438 rel->r_type = (info >> BFD_MACH_O_BE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1439 rel->r_pcrel = (info & BFD_MACH_O_BE_PCREL) ? 1 : 0;
1440 rel->r_length = (info >> BFD_MACH_O_BE_LENGTH_SHIFT)
1441 & BFD_MACH_O_LENGTH_MASK;
1442 rel->r_extern = (info & BFD_MACH_O_BE_EXTERN) ? 1 : 0;
1446 rel->r_value = (fields[2] << 16) | (fields[1] << 8) | fields[0];
1447 rel->r_type = (info >> BFD_MACH_O_LE_TYPE_SHIFT) & BFD_MACH_O_TYPE_MASK;
1448 rel->r_pcrel = (info & BFD_MACH_O_LE_PCREL) ? 1 : 0;
1449 rel->r_length = (info >> BFD_MACH_O_LE_LENGTH_SHIFT)
1450 & BFD_MACH_O_LENGTH_MASK;
1451 rel->r_extern = (info & BFD_MACH_O_LE_EXTERN) ? 1 : 0;
1455 /* Set syms_ptr_ptr and addend of RES. */
1458 bfd_mach_o_canonicalize_non_scattered_reloc (bfd *abfd,
1459 bfd_mach_o_reloc_info *reloc,
1460 arelent *res, asymbol **syms)
1462 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1466 /* Non-scattered relocation. */
1467 reloc->r_scattered = 0;
1470 num = reloc->r_value;
1472 if (reloc->r_extern)
1474 /* PR 17512: file: 8396-1185-0.004. */
1475 if (num >= (unsigned) bfd_mach_o_count_symbols (abfd))
1476 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1477 else if (syms == NULL)
1478 sym = bfd_und_section_ptr->symbol_ptr_ptr;
1480 /* An external symbol number. */
1483 else if (num == 0x00ffffff || num == 0)
1485 /* The 'symnum' in a non-scattered PAIR is 0x00ffffff. But as this
1486 is generic code, we don't know wether this is really a PAIR.
1487 This value is almost certainly not a valid section number, hence
1488 this specific case to avoid an assertion failure.
1489 Target specific swap_reloc_in routine should adjust that. */
1490 sym = bfd_abs_section_ptr->symbol_ptr_ptr;
1494 /* PR 17512: file: 006-2964-0.004. */
1495 if (num > mdata->nsects)
1498 /* A section number. */
1499 sym = mdata->sections[num - 1]->bfdsection->symbol_ptr_ptr;
1500 /* For a symbol defined in section S, the addend (stored in the
1501 binary) contains the address of the section. To comply with
1502 bfd convention, subtract the section address.
1503 Use the address from the header, so that the user can modify
1504 the vma of the section. */
1505 res->addend = -mdata->sections[num - 1]->addr;
1508 /* Note: Pairs for PPC LO/HI/HA are not scattered, but contain the offset
1509 in the lower 16bits of the address value. So we have to find the
1510 'symbol' from the preceding reloc. We do this even though the
1511 section symbol is probably not needed here, because NULL symbol
1512 values cause an assert in generic BFD code. This must be done in
1513 the PPC swap_reloc_in routine. */
1514 res->sym_ptr_ptr = sym;
1519 /* Do most of the work for canonicalize_relocs on RAW: create internal
1520 representation RELOC and set most fields of RES using symbol table SYMS.
1521 Each target still has to set the howto of RES and possibly adjust other
1523 Previously the Mach-O hook point was simply swap_in, but some targets
1524 (like arm64) don't follow the generic rules (symnum is a value for the
1525 non-scattered relocation ADDEND). */
1528 bfd_mach_o_pre_canonicalize_one_reloc (bfd *abfd,
1529 struct mach_o_reloc_info_external *raw,
1530 bfd_mach_o_reloc_info *reloc,
1531 arelent *res, asymbol **syms)
1533 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1536 addr = bfd_get_32 (abfd, raw->r_address);
1537 res->sym_ptr_ptr = NULL;
1540 if (addr & BFD_MACH_O_SR_SCATTERED)
1543 bfd_vma symnum = bfd_get_32 (abfd, raw->r_symbolnum);
1545 /* Scattered relocation, can't be extern. */
1546 reloc->r_scattered = 1;
1547 reloc->r_extern = 0;
1549 /* Extract section and offset from r_value (symnum). */
1550 reloc->r_value = symnum;
1551 /* FIXME: This breaks when a symbol in a reloc exactly follows the
1552 end of the data for the section (e.g. in a calculation of section
1553 data length). At present, the symbol will end up associated with
1554 the following section or, if it falls within alignment padding, as
1555 null - which will assert later. */
1556 for (j = 0; j < mdata->nsects; j++)
1558 bfd_mach_o_section *sect = mdata->sections[j];
1559 if (symnum >= sect->addr && symnum < sect->addr + sect->size)
1561 res->sym_ptr_ptr = sect->bfdsection->symbol_ptr_ptr;
1562 res->addend = symnum - sect->addr;
1567 /* Extract the info and address fields from r_address. */
1568 reloc->r_type = BFD_MACH_O_GET_SR_TYPE (addr);
1569 reloc->r_length = BFD_MACH_O_GET_SR_LENGTH (addr);
1570 reloc->r_pcrel = addr & BFD_MACH_O_SR_PCREL;
1571 reloc->r_address = BFD_MACH_O_GET_SR_TYPE (addr);
1572 res->address = BFD_MACH_O_GET_SR_ADDRESS (addr);
1576 /* Non-scattered relocation. */
1577 reloc->r_scattered = 0;
1578 reloc->r_address = addr;
1579 res->address = addr;
1581 /* The value and info fields have to be extracted dependent on target
1583 bfd_mach_o_swap_in_non_scattered_reloc (abfd, reloc, raw->r_symbolnum);
1585 if (!bfd_mach_o_canonicalize_non_scattered_reloc (abfd, reloc,
1590 /* We have set up a reloc with all the information present, so the swapper
1591 can modify address, value and addend fields, if necessary, to convey
1592 information in the generic BFD reloc that is mach-o specific. */
1598 bfd_mach_o_canonicalize_relocs (bfd *abfd, unsigned long filepos,
1599 unsigned long count,
1600 arelent *res, asymbol **syms)
1602 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1604 struct mach_o_reloc_info_external *native_relocs;
1605 bfd_size_type native_size;
1607 /* Allocate and read relocs. */
1608 native_size = count * BFD_MACH_O_RELENT_SIZE;
1610 /* PR 17512: file: 09477b57. */
1611 if (native_size < count)
1615 (struct mach_o_reloc_info_external *) bfd_malloc (native_size);
1616 if (native_relocs == NULL)
1619 if (bfd_seek (abfd, filepos, SEEK_SET) != 0
1620 || bfd_bread (native_relocs, native_size, abfd) != native_size)
1623 for (i = 0; i < count; i++)
1625 if (!(*bed->_bfd_mach_o_canonicalize_one_reloc)(abfd, &native_relocs[i],
1626 &res[i], syms, res))
1629 free (native_relocs);
1632 free (native_relocs);
1637 bfd_mach_o_canonicalize_reloc (bfd *abfd, asection *asect,
1638 arelent **rels, asymbol **syms)
1640 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1644 if (asect->reloc_count == 0)
1647 /* No need to go further if we don't know how to read relocs. */
1648 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
1651 if (asect->relocation == NULL)
1653 if (asect->reloc_count * sizeof (arelent) < asect->reloc_count)
1655 res = bfd_malloc (asect->reloc_count * sizeof (arelent));
1659 if (bfd_mach_o_canonicalize_relocs (abfd, asect->rel_filepos,
1660 asect->reloc_count, res, syms) < 0)
1665 asect->relocation = res;
1668 res = asect->relocation;
1669 for (i = 0; i < asect->reloc_count; i++)
1677 bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *abfd)
1679 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1681 if (mdata->dysymtab == NULL)
1683 return (mdata->dysymtab->nextrel + mdata->dysymtab->nlocrel + 1)
1684 * sizeof (arelent *);
1688 bfd_mach_o_canonicalize_dynamic_reloc (bfd *abfd, arelent **rels,
1689 struct bfd_symbol **syms)
1691 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1692 bfd_mach_o_dysymtab_command *dysymtab = mdata->dysymtab;
1693 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1697 if (dysymtab == NULL)
1699 if (dysymtab->nextrel == 0 && dysymtab->nlocrel == 0)
1702 /* No need to go further if we don't know how to read relocs. */
1703 if (bed->_bfd_mach_o_canonicalize_one_reloc == NULL)
1706 if (mdata->dyn_reloc_cache == NULL)
1708 if ((dysymtab->nextrel + dysymtab->nlocrel) * sizeof (arelent)
1709 < (dysymtab->nextrel + dysymtab->nlocrel))
1712 res = bfd_malloc ((dysymtab->nextrel + dysymtab->nlocrel)
1713 * sizeof (arelent));
1717 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->extreloff,
1718 dysymtab->nextrel, res, syms) < 0)
1724 if (bfd_mach_o_canonicalize_relocs (abfd, dysymtab->locreloff,
1726 res + dysymtab->nextrel, syms) < 0)
1732 mdata->dyn_reloc_cache = res;
1735 res = mdata->dyn_reloc_cache;
1736 for (i = 0; i < dysymtab->nextrel + dysymtab->nlocrel; i++)
1742 /* In addition to the need to byte-swap the symbol number, the bit positions
1743 of the fields in the relocation information vary per target endian-ness. */
1746 bfd_mach_o_swap_out_non_scattered_reloc (bfd *abfd, unsigned char *fields,
1747 bfd_mach_o_reloc_info *rel)
1749 unsigned char info = 0;
1751 BFD_ASSERT (rel->r_type <= 15);
1752 BFD_ASSERT (rel->r_length <= 3);
1754 if (bfd_big_endian (abfd))
1756 fields[0] = (rel->r_value >> 16) & 0xff;
1757 fields[1] = (rel->r_value >> 8) & 0xff;
1758 fields[2] = rel->r_value & 0xff;
1759 info |= rel->r_type << BFD_MACH_O_BE_TYPE_SHIFT;
1760 info |= rel->r_pcrel ? BFD_MACH_O_BE_PCREL : 0;
1761 info |= rel->r_length << BFD_MACH_O_BE_LENGTH_SHIFT;
1762 info |= rel->r_extern ? BFD_MACH_O_BE_EXTERN : 0;
1766 fields[2] = (rel->r_value >> 16) & 0xff;
1767 fields[1] = (rel->r_value >> 8) & 0xff;
1768 fields[0] = rel->r_value & 0xff;
1769 info |= rel->r_type << BFD_MACH_O_LE_TYPE_SHIFT;
1770 info |= rel->r_pcrel ? BFD_MACH_O_LE_PCREL : 0;
1771 info |= rel->r_length << BFD_MACH_O_LE_LENGTH_SHIFT;
1772 info |= rel->r_extern ? BFD_MACH_O_LE_EXTERN : 0;
1778 bfd_mach_o_write_relocs (bfd *abfd, bfd_mach_o_section *section)
1783 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
1785 sec = section->bfdsection;
1786 if (sec->reloc_count == 0)
1789 if (bed->_bfd_mach_o_swap_reloc_out == NULL)
1792 if (bfd_seek (abfd, section->reloff, SEEK_SET) != 0)
1795 /* Convert and write. */
1796 entries = section->bfdsection->orelocation;
1797 for (i = 0; i < section->nreloc; i++)
1799 arelent *rel = entries[i];
1800 struct mach_o_reloc_info_external raw;
1801 bfd_mach_o_reloc_info info, *pinfo = &info;
1803 /* Convert relocation to an intermediate representation. */
1804 if (!(*bed->_bfd_mach_o_swap_reloc_out) (rel, pinfo))
1807 /* Lower the relocation info. */
1808 if (pinfo->r_scattered)
1812 v = BFD_MACH_O_SR_SCATTERED
1813 | (pinfo->r_pcrel ? BFD_MACH_O_SR_PCREL : 0)
1814 | BFD_MACH_O_SET_SR_LENGTH (pinfo->r_length)
1815 | BFD_MACH_O_SET_SR_TYPE (pinfo->r_type)
1816 | BFD_MACH_O_SET_SR_ADDRESS (pinfo->r_address);
1817 /* Note: scattered relocs have field in reverse order... */
1818 bfd_put_32 (abfd, v, raw.r_address);
1819 bfd_put_32 (abfd, pinfo->r_value, raw.r_symbolnum);
1823 bfd_put_32 (abfd, pinfo->r_address, raw.r_address);
1824 bfd_mach_o_swap_out_non_scattered_reloc (abfd, raw.r_symbolnum,
1828 if (bfd_bwrite (&raw, BFD_MACH_O_RELENT_SIZE, abfd)
1829 != BFD_MACH_O_RELENT_SIZE)
1836 bfd_mach_o_write_section_32 (bfd *abfd, bfd_mach_o_section *section)
1838 struct mach_o_section_32_external raw;
1840 memcpy (raw.sectname, section->sectname, 16);
1841 memcpy (raw.segname, section->segname, 16);
1842 bfd_h_put_32 (abfd, section->addr, raw.addr);
1843 bfd_h_put_32 (abfd, section->size, raw.size);
1844 bfd_h_put_32 (abfd, section->offset, raw.offset);
1845 bfd_h_put_32 (abfd, section->align, raw.align);
1846 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1847 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1848 bfd_h_put_32 (abfd, section->flags, raw.flags);
1849 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1850 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1852 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
1853 != BFD_MACH_O_SECTION_SIZE)
1860 bfd_mach_o_write_section_64 (bfd *abfd, bfd_mach_o_section *section)
1862 struct mach_o_section_64_external raw;
1864 memcpy (raw.sectname, section->sectname, 16);
1865 memcpy (raw.segname, section->segname, 16);
1866 bfd_h_put_64 (abfd, section->addr, raw.addr);
1867 bfd_h_put_64 (abfd, section->size, raw.size);
1868 bfd_h_put_32 (abfd, section->offset, raw.offset);
1869 bfd_h_put_32 (abfd, section->align, raw.align);
1870 bfd_h_put_32 (abfd, section->reloff, raw.reloff);
1871 bfd_h_put_32 (abfd, section->nreloc, raw.nreloc);
1872 bfd_h_put_32 (abfd, section->flags, raw.flags);
1873 bfd_h_put_32 (abfd, section->reserved1, raw.reserved1);
1874 bfd_h_put_32 (abfd, section->reserved2, raw.reserved2);
1875 bfd_h_put_32 (abfd, section->reserved3, raw.reserved3);
1877 if (bfd_bwrite (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
1878 != BFD_MACH_O_SECTION_64_SIZE)
1885 bfd_mach_o_write_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
1887 struct mach_o_segment_command_32_external raw;
1888 bfd_mach_o_segment_command *seg = &command->command.segment;
1889 bfd_mach_o_section *sec;
1891 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
1893 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1894 if (!bfd_mach_o_write_relocs (abfd, sec))
1897 memcpy (raw.segname, seg->segname, 16);
1898 bfd_h_put_32 (abfd, seg->vmaddr, raw.vmaddr);
1899 bfd_h_put_32 (abfd, seg->vmsize, raw.vmsize);
1900 bfd_h_put_32 (abfd, seg->fileoff, raw.fileoff);
1901 bfd_h_put_32 (abfd, seg->filesize, raw.filesize);
1902 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1903 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1904 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1905 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1907 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1908 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1911 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1912 if (!bfd_mach_o_write_section_32 (abfd, sec))
1919 bfd_mach_o_write_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
1921 struct mach_o_segment_command_64_external raw;
1922 bfd_mach_o_segment_command *seg = &command->command.segment;
1923 bfd_mach_o_section *sec;
1925 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
1927 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1928 if (!bfd_mach_o_write_relocs (abfd, sec))
1931 memcpy (raw.segname, seg->segname, 16);
1932 bfd_h_put_64 (abfd, seg->vmaddr, raw.vmaddr);
1933 bfd_h_put_64 (abfd, seg->vmsize, raw.vmsize);
1934 bfd_h_put_64 (abfd, seg->fileoff, raw.fileoff);
1935 bfd_h_put_64 (abfd, seg->filesize, raw.filesize);
1936 bfd_h_put_32 (abfd, seg->maxprot, raw.maxprot);
1937 bfd_h_put_32 (abfd, seg->initprot, raw.initprot);
1938 bfd_h_put_32 (abfd, seg->nsects, raw.nsects);
1939 bfd_h_put_32 (abfd, seg->flags, raw.flags);
1941 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
1942 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
1945 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
1946 if (!bfd_mach_o_write_section_64 (abfd, sec))
1953 bfd_mach_o_write_symtab_content (bfd *abfd, bfd_mach_o_symtab_command *sym)
1955 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
1957 unsigned int wide = bfd_mach_o_wide_p (abfd);
1958 struct bfd_strtab_hash *strtab;
1959 asymbol **symbols = bfd_get_outsymbols (abfd);
1962 /* Write the symbols first. */
1963 if (bfd_seek (abfd, sym->symoff, SEEK_SET) != 0)
1966 strtab = _bfd_stringtab_init ();
1971 /* Although we don't strictly need to do this, for compatibility with
1972 Darwin system tools, actually output an empty string for the index
1974 _bfd_stringtab_add (strtab, "", TRUE, FALSE);
1976 for (i = 0; i < sym->nsyms; i++)
1978 bfd_size_type str_index;
1979 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
1981 if (s->symbol.name == 0 || s->symbol.name[0] == '\0')
1982 /* An index of 0 always means the empty string. */
1986 str_index = _bfd_stringtab_add (strtab, s->symbol.name, TRUE, FALSE);
1988 if (str_index == (bfd_size_type) -1)
1994 struct mach_o_nlist_64_external raw;
1996 bfd_h_put_32 (abfd, str_index, raw.n_strx);
1997 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
1998 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
1999 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
2000 bfd_h_put_64 (abfd, s->symbol.section->vma + s->symbol.value,
2003 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2008 struct mach_o_nlist_external raw;
2010 bfd_h_put_32 (abfd, str_index, raw.n_strx);
2011 bfd_h_put_8 (abfd, s->n_type, raw.n_type);
2012 bfd_h_put_8 (abfd, s->n_sect, raw.n_sect);
2013 bfd_h_put_16 (abfd, s->n_desc, raw.n_desc);
2014 bfd_h_put_32 (abfd, s->symbol.section->vma + s->symbol.value,
2017 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2021 sym->strsize = _bfd_stringtab_size (strtab);
2022 sym->stroff = mdata->filelen;
2023 mdata->filelen += sym->strsize;
2025 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0)
2028 if (!_bfd_stringtab_emit (abfd, strtab))
2031 /* Pad string table. */
2032 padlen = bfd_mach_o_pad4 (abfd, sym->strsize);
2035 mdata->filelen += padlen;
2036 sym->strsize += padlen;
2041 _bfd_stringtab_free (strtab);
2047 bfd_mach_o_write_symtab (bfd *abfd, bfd_mach_o_load_command *command)
2049 bfd_mach_o_symtab_command *sym = &command->command.symtab;
2050 struct mach_o_symtab_command_external raw;
2052 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
2055 bfd_h_put_32 (abfd, sym->symoff, raw.symoff);
2056 bfd_h_put_32 (abfd, sym->nsyms, raw.nsyms);
2057 bfd_h_put_32 (abfd, sym->stroff, raw.stroff);
2058 bfd_h_put_32 (abfd, sym->strsize, raw.strsize);
2060 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0
2061 || bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2067 /* Count the number of indirect symbols in the image.
2068 Requires that the sections are in their final order. */
2071 bfd_mach_o_count_indirect_symbols (bfd *abfd, bfd_mach_o_data_struct *mdata)
2074 unsigned int nisyms = 0;
2076 for (i = 0; i < mdata->nsects; ++i)
2078 bfd_mach_o_section *sec = mdata->sections[i];
2080 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2082 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2083 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2084 case BFD_MACH_O_S_SYMBOL_STUBS:
2085 nisyms += bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2094 /* Create the dysymtab. */
2097 bfd_mach_o_build_dysymtab (bfd *abfd, bfd_mach_o_dysymtab_command *cmd)
2099 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2102 We are not going to try and fill these in yet and, moreover, we are
2103 going to bail if they are already set. */
2104 if (cmd->nmodtab != 0
2106 || cmd->nextrefsyms != 0)
2108 _bfd_error_handler (_("sorry: modtab, toc and extrefsyms are not yet"
2109 " implemented for dysymtab commands."));
2115 if (bfd_get_symcount (abfd) > 0)
2117 asymbol **symbols = bfd_get_outsymbols (abfd);
2120 /* Count the number of each kind of symbol. */
2121 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2123 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2124 if (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT))
2128 cmd->iextdefsym = i;
2129 for (; i < bfd_get_symcount (abfd); ++i)
2131 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2132 if ((s->n_type & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_UNDF)
2135 cmd->nextdefsym = i - cmd->nlocalsym;
2136 cmd->iundefsym = cmd->nextdefsym + cmd->iextdefsym;
2137 cmd->nundefsym = bfd_get_symcount (abfd)
2144 cmd->iextdefsym = 0;
2145 cmd->nextdefsym = 0;
2150 cmd->nindirectsyms = bfd_mach_o_count_indirect_symbols (abfd, mdata);
2151 if (cmd->nindirectsyms > 0)
2156 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2157 cmd->indirectsymoff = mdata->filelen;
2158 mdata->filelen += cmd->nindirectsyms * 4;
2160 if (cmd->nindirectsyms * 4 < cmd->nindirectsyms)
2162 cmd->indirect_syms = bfd_zalloc (abfd, cmd->nindirectsyms * 4);
2163 if (cmd->indirect_syms == NULL)
2167 for (i = 0; i < mdata->nsects; ++i)
2169 bfd_mach_o_section *sec = mdata->sections[i];
2171 switch (sec->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2173 case BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS:
2174 case BFD_MACH_O_S_LAZY_SYMBOL_POINTERS:
2175 case BFD_MACH_O_S_SYMBOL_STUBS:
2178 bfd_mach_o_asymbol **isyms = sec->indirect_syms;
2180 num = bfd_mach_o_section_get_nbr_indirect (abfd, sec);
2181 if (isyms == NULL || num == 0)
2183 /* Record the starting index in the reserved1 field. */
2185 for (j = 0; j < num; j++, n++)
2187 if (isyms[j] == NULL)
2188 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL;
2189 else if (isyms[j]->symbol.section == bfd_abs_section_ptr
2190 && ! (isyms[j]->n_type & BFD_MACH_O_N_EXT))
2191 cmd->indirect_syms[n] = BFD_MACH_O_INDIRECT_SYM_LOCAL
2192 | BFD_MACH_O_INDIRECT_SYM_ABS;
2194 cmd->indirect_syms[n] = isyms[j]->symbol.udata.i;
2207 /* Write a dysymtab command.
2208 TODO: Possibly coalesce writes of smaller objects. */
2211 bfd_mach_o_write_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
2213 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
2215 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
2217 if (cmd->nmodtab != 0)
2221 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
2224 for (i = 0; i < cmd->nmodtab; i++)
2226 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
2230 iinit = module->iinit & 0xffff;
2231 iinit |= ((module->iterm & 0xffff) << 16);
2233 ninit = module->ninit & 0xffff;
2234 ninit |= ((module->nterm & 0xffff) << 16);
2236 if (bfd_mach_o_wide_p (abfd))
2238 struct mach_o_dylib_module_64_external w;
2240 bfd_h_put_32 (abfd, module->module_name_idx, &w.module_name);
2241 bfd_h_put_32 (abfd, module->iextdefsym, &w.iextdefsym);
2242 bfd_h_put_32 (abfd, module->nextdefsym, &w.nextdefsym);
2243 bfd_h_put_32 (abfd, module->irefsym, &w.irefsym);
2244 bfd_h_put_32 (abfd, module->nrefsym, &w.nrefsym);
2245 bfd_h_put_32 (abfd, module->ilocalsym, &w.ilocalsym);
2246 bfd_h_put_32 (abfd, module->nlocalsym, &w.nlocalsym);
2247 bfd_h_put_32 (abfd, module->iextrel, &w.iextrel);
2248 bfd_h_put_32 (abfd, module->nextrel, &w.nextrel);
2249 bfd_h_put_32 (abfd, iinit, &w.iinit_iterm);
2250 bfd_h_put_32 (abfd, ninit, &w.ninit_nterm);
2251 bfd_h_put_64 (abfd, module->objc_module_info_addr,
2252 &w.objc_module_info_addr);
2253 bfd_h_put_32 (abfd, module->objc_module_info_size,
2254 &w.objc_module_info_size);
2256 if (bfd_bwrite ((void *) &w, sizeof (w), abfd) != sizeof (w))
2261 struct mach_o_dylib_module_external n;
2263 bfd_h_put_32 (abfd, module->module_name_idx, &n.module_name);
2264 bfd_h_put_32 (abfd, module->iextdefsym, &n.iextdefsym);
2265 bfd_h_put_32 (abfd, module->nextdefsym, &n.nextdefsym);
2266 bfd_h_put_32 (abfd, module->irefsym, &n.irefsym);
2267 bfd_h_put_32 (abfd, module->nrefsym, &n.nrefsym);
2268 bfd_h_put_32 (abfd, module->ilocalsym, &n.ilocalsym);
2269 bfd_h_put_32 (abfd, module->nlocalsym, &n.nlocalsym);
2270 bfd_h_put_32 (abfd, module->iextrel, &n.iextrel);
2271 bfd_h_put_32 (abfd, module->nextrel, &n.nextrel);
2272 bfd_h_put_32 (abfd, iinit, &n.iinit_iterm);
2273 bfd_h_put_32 (abfd, ninit, &n.ninit_nterm);
2274 bfd_h_put_32 (abfd, module->objc_module_info_addr,
2275 &n.objc_module_info_addr);
2276 bfd_h_put_32 (abfd, module->objc_module_info_size,
2277 &n.objc_module_info_size);
2279 if (bfd_bwrite ((void *) &n, sizeof (n), abfd) != sizeof (n))
2289 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
2292 for (i = 0; i < cmd->ntoc; i++)
2294 struct mach_o_dylib_table_of_contents_external raw;
2295 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
2297 bfd_h_put_32 (abfd, toc->symbol_index, &raw.symbol_index);
2298 bfd_h_put_32 (abfd, toc->module_index, &raw.module_index);
2300 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2305 if (cmd->nindirectsyms > 0)
2309 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
2312 for (i = 0; i < cmd->nindirectsyms; ++i)
2314 unsigned char raw[4];
2316 bfd_h_put_32 (abfd, cmd->indirect_syms[i], &raw);
2317 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2322 if (cmd->nextrefsyms != 0)
2326 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
2329 for (i = 0; i < cmd->nextrefsyms; i++)
2332 unsigned char raw[4];
2333 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
2335 /* Fields isym and flags are written as bit-fields, thus we need
2336 a specific processing for endianness. */
2338 if (bfd_big_endian (abfd))
2340 v = ((ref->isym & 0xffffff) << 8);
2341 v |= ref->flags & 0xff;
2345 v = ref->isym & 0xffffff;
2346 v |= ((ref->flags & 0xff) << 24);
2349 bfd_h_put_32 (abfd, v, raw);
2350 if (bfd_bwrite (raw, sizeof (raw), abfd) != sizeof (raw))
2356 if (bfd_seek (abfd, command->offset + BFD_MACH_O_LC_SIZE, SEEK_SET) != 0)
2360 struct mach_o_dysymtab_command_external raw;
2362 bfd_h_put_32 (abfd, cmd->ilocalsym, &raw.ilocalsym);
2363 bfd_h_put_32 (abfd, cmd->nlocalsym, &raw.nlocalsym);
2364 bfd_h_put_32 (abfd, cmd->iextdefsym, &raw.iextdefsym);
2365 bfd_h_put_32 (abfd, cmd->nextdefsym, &raw.nextdefsym);
2366 bfd_h_put_32 (abfd, cmd->iundefsym, &raw.iundefsym);
2367 bfd_h_put_32 (abfd, cmd->nundefsym, &raw.nundefsym);
2368 bfd_h_put_32 (abfd, cmd->tocoff, &raw.tocoff);
2369 bfd_h_put_32 (abfd, cmd->ntoc, &raw.ntoc);
2370 bfd_h_put_32 (abfd, cmd->modtaboff, &raw.modtaboff);
2371 bfd_h_put_32 (abfd, cmd->nmodtab, &raw.nmodtab);
2372 bfd_h_put_32 (abfd, cmd->extrefsymoff, &raw.extrefsymoff);
2373 bfd_h_put_32 (abfd, cmd->nextrefsyms, &raw.nextrefsyms);
2374 bfd_h_put_32 (abfd, cmd->indirectsymoff, &raw.indirectsymoff);
2375 bfd_h_put_32 (abfd, cmd->nindirectsyms, &raw.nindirectsyms);
2376 bfd_h_put_32 (abfd, cmd->extreloff, &raw.extreloff);
2377 bfd_h_put_32 (abfd, cmd->nextrel, &raw.nextrel);
2378 bfd_h_put_32 (abfd, cmd->locreloff, &raw.locreloff);
2379 bfd_h_put_32 (abfd, cmd->nlocrel, &raw.nlocrel);
2381 if (bfd_bwrite (&raw, sizeof (raw), abfd) != sizeof (raw))
2389 bfd_mach_o_primary_symbol_sort_key (bfd_mach_o_asymbol *s)
2391 unsigned mtyp = s->n_type & BFD_MACH_O_N_TYPE;
2393 /* Just leave debug symbols where they are (pretend they are local, and
2394 then they will just be sorted on position). */
2395 if (s->n_type & BFD_MACH_O_N_STAB)
2398 /* Local (we should never see an undefined local AFAICT). */
2399 if (! (s->n_type & (BFD_MACH_O_N_EXT | BFD_MACH_O_N_PEXT)))
2402 /* Common symbols look like undefined externs. */
2403 if (mtyp == BFD_MACH_O_N_UNDF)
2406 /* A defined non-local, non-debug symbol. */
2411 bfd_mach_o_cf_symbols (const void *a, const void *b)
2413 bfd_mach_o_asymbol *sa = *(bfd_mach_o_asymbol **) a;
2414 bfd_mach_o_asymbol *sb = *(bfd_mach_o_asymbol **) b;
2415 unsigned int soa, sob;
2417 soa = bfd_mach_o_primary_symbol_sort_key (sa);
2418 sob = bfd_mach_o_primary_symbol_sort_key (sb);
2425 /* If it's local or stab, just preserve the input order. */
2428 if (sa->symbol.udata.i < sb->symbol.udata.i)
2430 if (sa->symbol.udata.i > sb->symbol.udata.i)
2433 /* This is probably an error. */
2437 /* The second sort key is name. */
2438 return strcmp (sa->symbol.name, sb->symbol.name);
2441 /* Process the symbols.
2443 This should be OK for single-module files - but it is not likely to work
2444 for multi-module shared libraries.
2446 (a) If the application has not filled in the relevant mach-o fields, make
2449 (b) Order them, like this:
2452 ( ii) external defined
2454 (iii) external undefined/common
2461 bfd_mach_o_mangle_symbols (bfd *abfd)
2464 asymbol **symbols = bfd_get_outsymbols (abfd);
2466 if (symbols == NULL || bfd_get_symcount (abfd) == 0)
2469 for (i = 0; i < bfd_get_symcount (abfd); i++)
2471 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2473 /* We use this value, which is out-of-range as a symbol index, to signal
2474 that the mach-o-specific data are not filled in and need to be created
2475 from the bfd values. It is much preferable for the application to do
2476 this, since more meaningful diagnostics can be made that way. */
2478 if (s->symbol.udata.i == SYM_MACHO_FIELDS_UNSET)
2480 /* No symbol information has been set - therefore determine
2481 it from the bfd symbol flags/info. */
2482 if (s->symbol.section == bfd_abs_section_ptr)
2483 s->n_type = BFD_MACH_O_N_ABS;
2484 else if (s->symbol.section == bfd_und_section_ptr)
2486 s->n_type = BFD_MACH_O_N_UNDF;
2487 if (s->symbol.flags & BSF_WEAK)
2488 s->n_desc |= BFD_MACH_O_N_WEAK_REF;
2489 /* mach-o automatically makes undefined symbols extern. */
2490 s->n_type |= BFD_MACH_O_N_EXT;
2491 s->symbol.flags |= BSF_GLOBAL;
2493 else if (s->symbol.section == bfd_com_section_ptr)
2495 s->n_type = BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT;
2496 s->symbol.flags |= BSF_GLOBAL;
2499 s->n_type = BFD_MACH_O_N_SECT;
2502 /* Update external symbol bit in case objcopy changed it. */
2503 if (s->symbol.flags & BSF_GLOBAL)
2504 s->n_type |= BFD_MACH_O_N_EXT;
2506 s->n_type &= ~BFD_MACH_O_N_EXT;
2508 /* Put the section index in, where required. */
2509 if ((s->symbol.section != bfd_abs_section_ptr
2510 && s->symbol.section != bfd_und_section_ptr
2511 && s->symbol.section != bfd_com_section_ptr)
2512 || ((s->n_type & BFD_MACH_O_N_STAB) != 0
2513 && s->symbol.name == NULL))
2514 s->n_sect = s->symbol.section->output_section->target_index;
2516 /* Number to preserve order for local and debug syms. */
2517 s->symbol.udata.i = i;
2520 /* Sort the symbols. */
2521 qsort ((void *) symbols, (size_t) bfd_get_symcount (abfd),
2522 sizeof (asymbol *), bfd_mach_o_cf_symbols);
2524 for (i = 0; i < bfd_get_symcount (abfd); ++i)
2526 bfd_mach_o_asymbol *s = (bfd_mach_o_asymbol *)symbols[i];
2527 s->symbol.udata.i = i; /* renumber. */
2533 /* We build a flat table of sections, which can be re-ordered if necessary.
2534 Fill in the section number and other mach-o-specific data. */
2537 bfd_mach_o_mangle_sections (bfd *abfd, bfd_mach_o_data_struct *mdata)
2540 unsigned target_index;
2543 nsect = bfd_count_sections (abfd);
2545 /* Don't do it if it's already set - assume the application knows what it's
2547 if (mdata->nsects == nsect
2548 && (mdata->nsects == 0 || mdata->sections != NULL))
2551 /* We need to check that this can be done... */
2554 _bfd_error_handler (_("mach-o: there are too many sections (%u)"
2555 " maximum is 255,\n"), nsect);
2559 mdata->nsects = nsect;
2560 mdata->sections = bfd_alloc2 (abfd,
2561 mdata->nsects, sizeof (bfd_mach_o_section *));
2562 if (mdata->sections == NULL)
2565 /* Create Mach-O sections.
2566 Section type, attribute and align should have been set when the
2567 section was created - either read in or specified. */
2569 for (sec = abfd->sections; sec; sec = sec->next)
2571 unsigned bfd_align = bfd_get_section_alignment (abfd, sec);
2572 bfd_mach_o_section *msect = bfd_mach_o_get_mach_o_section (sec);
2574 mdata->sections[target_index] = msect;
2576 msect->addr = bfd_get_section_vma (abfd, sec);
2577 msect->size = bfd_get_section_size (sec);
2579 /* Use the largest alignment set, in case it was bumped after the
2580 section was created. */
2581 msect->align = msect->align > bfd_align ? msect->align : bfd_align;
2584 sec->target_index = ++target_index;
2591 bfd_mach_o_write_contents (bfd *abfd)
2593 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2594 bfd_mach_o_load_command *cmd;
2595 bfd_mach_o_symtab_command *symtab = NULL;
2596 bfd_mach_o_dysymtab_command *dysymtab = NULL;
2597 bfd_mach_o_segment_command *linkedit = NULL;
2599 /* Make the commands, if not already present. */
2600 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
2602 abfd->output_has_begun = TRUE;
2604 /* Write the header. */
2605 if (!bfd_mach_o_write_header (abfd, &mdata->header))
2608 /* First pass: allocate the linkedit segment. */
2609 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2612 case BFD_MACH_O_LC_SEGMENT_64:
2613 case BFD_MACH_O_LC_SEGMENT:
2614 if (strcmp (cmd->command.segment.segname, "__LINKEDIT") == 0)
2615 linkedit = &cmd->command.segment;
2617 case BFD_MACH_O_LC_SYMTAB:
2618 symtab = &cmd->command.symtab;
2620 case BFD_MACH_O_LC_DYSYMTAB:
2621 dysymtab = &cmd->command.dysymtab;
2623 case BFD_MACH_O_LC_DYLD_INFO:
2625 bfd_mach_o_dyld_info_command *di = &cmd->command.dyld_info;
2627 if (di->rebase_size != 0)
2629 di->rebase_off = mdata->filelen;
2630 mdata->filelen += di->rebase_size;
2632 if (di->bind_size != 0)
2634 di->bind_off = mdata->filelen;
2635 mdata->filelen += di->bind_size;
2637 if (di->weak_bind_size != 0)
2639 di->weak_bind_off = mdata->filelen;
2640 mdata->filelen += di->weak_bind_size;
2642 if (di->lazy_bind_size != 0)
2644 di->lazy_bind_off = mdata->filelen;
2645 mdata->filelen += di->lazy_bind_size;
2647 if (di->export_size != 0)
2649 di->export_off = mdata->filelen;
2650 mdata->filelen += di->export_size;
2654 case BFD_MACH_O_LC_LOAD_DYLIB:
2655 case BFD_MACH_O_LC_LOAD_DYLINKER:
2656 case BFD_MACH_O_LC_MAIN:
2657 /* Nothing to do. */
2661 (_("unable to allocate data for load command %#x"),
2666 /* Specially handle symtab and dysymtab. */
2668 /* Pre-allocate the symbol table (but not the string table). The reason
2669 is that the dysymtab is after the symbol table but before the string
2670 table (required by the native strip tool). */
2673 unsigned int symlen;
2674 unsigned int wide = bfd_mach_o_wide_p (abfd);
2676 symlen = wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
2678 /* Align for symbols. */
2679 mdata->filelen = FILE_ALIGN (mdata->filelen, wide ? 3 : 2);
2680 symtab->symoff = mdata->filelen;
2682 symtab->nsyms = bfd_get_symcount (abfd);
2683 mdata->filelen += symtab->nsyms * symlen;
2686 /* Build the dysymtab. */
2687 if (dysymtab != NULL)
2688 if (!bfd_mach_o_build_dysymtab (abfd, dysymtab))
2691 /* Write symtab and strtab. */
2693 if (!bfd_mach_o_write_symtab_content (abfd, symtab))
2696 /* Adjust linkedit size. */
2697 if (linkedit != NULL)
2699 /* bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1; */
2701 linkedit->vmsize = mdata->filelen - linkedit->fileoff;
2702 /* linkedit->vmsize = (linkedit->vmsize + pagemask) & ~pagemask; */
2703 linkedit->filesize = mdata->filelen - linkedit->fileoff;
2705 linkedit->initprot = BFD_MACH_O_PROT_READ;
2706 linkedit->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2707 | BFD_MACH_O_PROT_EXECUTE;
2710 /* Second pass: write commands. */
2711 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
2713 struct mach_o_load_command_external raw;
2714 unsigned long typeflag;
2716 typeflag = cmd->type | (cmd->type_required ? BFD_MACH_O_LC_REQ_DYLD : 0);
2718 bfd_h_put_32 (abfd, typeflag, raw.cmd);
2719 bfd_h_put_32 (abfd, cmd->len, raw.cmdsize);
2721 if (bfd_seek (abfd, cmd->offset, SEEK_SET) != 0
2722 || bfd_bwrite (&raw, BFD_MACH_O_LC_SIZE, abfd) != 8)
2727 case BFD_MACH_O_LC_SEGMENT:
2728 if (!bfd_mach_o_write_segment_32 (abfd, cmd))
2731 case BFD_MACH_O_LC_SEGMENT_64:
2732 if (!bfd_mach_o_write_segment_64 (abfd, cmd))
2735 case BFD_MACH_O_LC_SYMTAB:
2736 if (!bfd_mach_o_write_symtab (abfd, cmd))
2739 case BFD_MACH_O_LC_DYSYMTAB:
2740 if (!bfd_mach_o_write_dysymtab (abfd, cmd))
2743 case BFD_MACH_O_LC_THREAD:
2744 case BFD_MACH_O_LC_UNIXTHREAD:
2745 if (!bfd_mach_o_write_thread (abfd, cmd))
2748 case BFD_MACH_O_LC_LOAD_DYLIB:
2749 if (!bfd_mach_o_write_dylib (abfd, cmd))
2752 case BFD_MACH_O_LC_LOAD_DYLINKER:
2753 if (!bfd_mach_o_write_dylinker (abfd, cmd))
2756 case BFD_MACH_O_LC_MAIN:
2757 if (!bfd_mach_o_write_main (abfd, cmd))
2760 case BFD_MACH_O_LC_DYLD_INFO:
2761 if (!bfd_mach_o_write_dyld_info (abfd, cmd))
2766 (_("unable to write unknown load command %#x"),
2776 bfd_mach_o_append_section_to_segment (bfd_mach_o_segment_command *seg,
2777 bfd_mach_o_section *s)
2779 if (seg->sect_head == NULL)
2782 seg->sect_tail->next = s;
2786 /* Create section Mach-O flags from BFD flags. */
2789 bfd_mach_o_set_section_flags_from_bfd (bfd *abfd ATTRIBUTE_UNUSED,
2793 bfd_mach_o_section *s = bfd_mach_o_get_mach_o_section (sec);
2795 /* Create default flags. */
2796 bfd_flags = bfd_get_section_flags (abfd, sec);
2797 if ((bfd_flags & SEC_CODE) == SEC_CODE)
2798 s->flags = BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS
2799 | BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS
2800 | BFD_MACH_O_S_REGULAR;
2801 else if ((bfd_flags & (SEC_ALLOC | SEC_LOAD)) == SEC_ALLOC)
2802 s->flags = BFD_MACH_O_S_ZEROFILL;
2803 else if (bfd_flags & SEC_DEBUGGING)
2804 s->flags = BFD_MACH_O_S_REGULAR | BFD_MACH_O_S_ATTR_DEBUG;
2806 s->flags = BFD_MACH_O_S_REGULAR;
2810 bfd_mach_o_build_obj_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2812 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2816 seg->fileoff = mdata->filelen;
2817 seg->initprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
2818 | BFD_MACH_O_PROT_EXECUTE;
2819 seg->maxprot = seg->initprot;
2821 /* Append sections to the segment.
2823 This is a little tedious, we have to honor the need to account zerofill
2824 sections after all the rest. This forces us to do the calculation of
2825 total vmsize in three passes so that any alignment increments are
2826 properly accounted. */
2827 for (i = 0; i < mdata->nsects; ++i)
2829 bfd_mach_o_section *s = mdata->sections[i];
2830 asection *sec = s->bfdsection;
2832 /* Although we account for zerofill section sizes in vm order, they are
2833 placed in the file in source sequence. */
2834 bfd_mach_o_append_section_to_segment (seg, s);
2837 /* Zerofill sections have zero file size & offset, the only content
2838 written to the file is the symbols. */
2839 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) == BFD_MACH_O_S_ZEROFILL
2840 || ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2841 == BFD_MACH_O_S_GB_ZEROFILL))
2844 /* The Darwin system tools (in MH_OBJECT files, at least) always account
2845 sections, even those with zero size. */
2848 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2849 seg->vmsize += s->size;
2851 /* MH_OBJECT files have unaligned content. */
2854 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2855 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2857 seg->filesize += s->size;
2859 /* The system tools write even zero-sized sections with an offset
2860 field set to the current file position. */
2861 s->offset = mdata->filelen;
2864 sec->filepos = s->offset;
2865 mdata->filelen += s->size;
2868 /* Now pass through again, for zerofill, only now we just update the
2869 vmsize, and then for zerofill_GB. */
2870 for (j = 0; j < 2; j++)
2875 stype = BFD_MACH_O_S_ZEROFILL;
2877 stype = BFD_MACH_O_S_GB_ZEROFILL;
2879 for (i = 0; i < mdata->nsects; ++i)
2881 bfd_mach_o_section *s = mdata->sections[i];
2883 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != stype)
2888 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2889 seg->vmsize += s->size;
2894 /* Allocate space for the relocations. */
2895 mdata->filelen = FILE_ALIGN (mdata->filelen, 2);
2897 for (i = 0; i < mdata->nsects; ++i)
2899 bfd_mach_o_section *ms = mdata->sections[i];
2900 asection *sec = ms->bfdsection;
2902 ms->nreloc = sec->reloc_count;
2903 if (ms->nreloc == 0)
2905 /* Clear nreloc and reloff if there is no relocs. */
2909 sec->rel_filepos = mdata->filelen;
2910 ms->reloff = sec->rel_filepos;
2911 mdata->filelen += sec->reloc_count * BFD_MACH_O_RELENT_SIZE;
2918 bfd_mach_o_build_exec_seg_command (bfd *abfd, bfd_mach_o_segment_command *seg)
2920 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
2922 bfd_vma pagemask = bfd_mach_o_get_backend_data (abfd)->page_size - 1;
2924 bfd_mach_o_section *s;
2928 seg->fileoff = mdata->filelen;
2933 /* Append sections to the segment. We assume they are properly ordered
2934 by vma (but we check that). */
2936 for (i = 0; i < mdata->nsects; ++i)
2938 s = mdata->sections[i];
2940 /* Consider only sections for this segment. */
2941 if (strcmp (seg->segname, s->segname) != 0)
2944 bfd_mach_o_append_section_to_segment (seg, s);
2949 /* xgettext:c-format */
2950 (_("section address (%#" PRIx64 ") "
2951 "below start of segment (%#" PRIx64 ")"),
2952 (uint64_t) s->addr, (uint64_t) vma);
2956 vma = s->addr + s->size;
2959 /* Set segment file offset: make it page aligned. */
2960 vma = seg->sect_head->addr;
2961 seg->vmaddr = vma & ~pagemask;
2962 if ((mdata->filelen & pagemask) > (vma & pagemask))
2963 mdata->filelen += pagemask + 1;
2964 seg->fileoff = mdata->filelen & ~pagemask;
2965 mdata->filelen = seg->fileoff + (vma & pagemask);
2967 /* Set section file offset. */
2968 for (s = seg->sect_head; s != NULL; s = s->next)
2970 asection *sec = s->bfdsection;
2971 flagword flags = bfd_get_section_flags (abfd, sec);
2973 /* Adjust segment size. */
2974 seg->vmsize = FILE_ALIGN (seg->vmsize, s->align);
2975 seg->vmsize += s->size;
2977 /* File offset and length. */
2978 seg->filesize = FILE_ALIGN (seg->filesize, s->align);
2980 if ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK) != BFD_MACH_O_S_ZEROFILL
2981 && ((s->flags & BFD_MACH_O_SECTION_TYPE_MASK)
2982 != BFD_MACH_O_S_GB_ZEROFILL))
2984 mdata->filelen = FILE_ALIGN (mdata->filelen, s->align);
2986 s->offset = mdata->filelen;
2987 s->bfdsection->filepos = s->offset;
2989 seg->filesize += s->size;
2990 mdata->filelen += s->size;
2995 s->bfdsection->filepos = 0;
2998 /* Set protection. */
2999 if (flags & SEC_LOAD)
3001 if (flags & SEC_CODE)
3002 seg->initprot |= BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_EXECUTE;
3003 if ((flags & (SEC_DATA | SEC_READONLY)) == SEC_DATA)
3004 seg->initprot |= BFD_MACH_O_PROT_WRITE | BFD_MACH_O_PROT_READ;
3007 /* Relocs shouldn't appear in non-object files. */
3008 if (s->bfdsection->reloc_count != 0)
3013 if (seg->initprot != 0)
3014 seg->maxprot = BFD_MACH_O_PROT_READ | BFD_MACH_O_PROT_WRITE
3015 | BFD_MACH_O_PROT_EXECUTE;
3019 /* Round segment size (and file size). */
3020 seg->vmsize = (seg->vmsize + pagemask) & ~pagemask;
3021 seg->filesize = (seg->filesize + pagemask) & ~pagemask;
3022 mdata->filelen = (mdata->filelen + pagemask) & ~pagemask;
3027 /* Layout the commands: set commands size and offset, set ncmds and sizeofcmds
3028 fields in header. */
3031 bfd_mach_o_layout_commands (bfd_mach_o_data_struct *mdata)
3033 unsigned wide = mach_o_wide_p (&mdata->header);
3034 unsigned int hdrlen;
3036 bfd_mach_o_load_command *cmd;
3038 bfd_boolean ret = TRUE;
3040 hdrlen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3041 align = wide ? 8 - 1 : 4 - 1;
3043 mdata->header.ncmds = 0;
3045 for (cmd = mdata->first_command; cmd; cmd = cmd->next)
3047 mdata->header.ncmds++;
3048 cmd->offset = offset;
3052 case BFD_MACH_O_LC_SEGMENT_64:
3053 cmd->len = BFD_MACH_O_LC_SEGMENT_64_SIZE
3054 + BFD_MACH_O_SECTION_64_SIZE * cmd->command.segment.nsects;
3056 case BFD_MACH_O_LC_SEGMENT:
3057 cmd->len = BFD_MACH_O_LC_SEGMENT_SIZE
3058 + BFD_MACH_O_SECTION_SIZE * cmd->command.segment.nsects;
3060 case BFD_MACH_O_LC_SYMTAB:
3061 cmd->len = sizeof (struct mach_o_symtab_command_external)
3062 + BFD_MACH_O_LC_SIZE;
3064 case BFD_MACH_O_LC_DYSYMTAB:
3065 cmd->len = sizeof (struct mach_o_dysymtab_command_external)
3066 + BFD_MACH_O_LC_SIZE;
3068 case BFD_MACH_O_LC_LOAD_DYLIB:
3069 cmd->len = sizeof (struct mach_o_dylib_command_external)
3070 + BFD_MACH_O_LC_SIZE;
3071 cmd->command.dylib.name_offset = cmd->len;
3072 cmd->len += strlen (cmd->command.dylib.name_str);
3073 cmd->len = (cmd->len + align) & ~align;
3075 case BFD_MACH_O_LC_LOAD_DYLINKER:
3076 cmd->len = sizeof (struct mach_o_str_command_external)
3077 + BFD_MACH_O_LC_SIZE;
3078 cmd->command.dylinker.name_offset = cmd->len;
3079 cmd->len += strlen (cmd->command.dylinker.name_str);
3080 cmd->len = (cmd->len + align) & ~align;
3082 case BFD_MACH_O_LC_MAIN:
3083 cmd->len = sizeof (struct mach_o_entry_point_command_external)
3084 + BFD_MACH_O_LC_SIZE;
3086 case BFD_MACH_O_LC_DYLD_INFO:
3087 cmd->len = sizeof (struct mach_o_dyld_info_command_external)
3088 + BFD_MACH_O_LC_SIZE;
3092 (_("unable to layout unknown load command %#x"),
3098 BFD_ASSERT (cmd->len % (align + 1) == 0);
3101 mdata->header.sizeofcmds = offset - hdrlen;
3102 mdata->filelen = offset;
3107 /* Subroutine of bfd_mach_o_build_commands: set type, name and nsects of a
3111 bfd_mach_o_init_segment (bfd_mach_o_data_struct *mdata,
3112 bfd_mach_o_load_command *cmd,
3113 const char *segname, unsigned int nbr_sect)
3115 bfd_mach_o_segment_command *seg = &cmd->command.segment;
3116 unsigned wide = mach_o_wide_p (&mdata->header);
3118 /* Init segment command. */
3119 cmd->type = wide ? BFD_MACH_O_LC_SEGMENT_64 : BFD_MACH_O_LC_SEGMENT;
3120 cmd->type_required = FALSE;
3122 strcpy (seg->segname, segname);
3123 seg->nsects = nbr_sect;
3133 seg->sect_head = NULL;
3134 seg->sect_tail = NULL;
3137 /* Build Mach-O load commands (currently assuming an MH_OBJECT file).
3138 TODO: Other file formats, rebuilding symtab/dysymtab commands for strip
3139 and copy functionality. */
3142 bfd_mach_o_build_commands (bfd *abfd)
3144 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3145 unsigned wide = mach_o_wide_p (&mdata->header);
3146 unsigned int nbr_segcmd = 0;
3147 bfd_mach_o_load_command *commands;
3148 unsigned int nbr_commands;
3149 int symtab_idx = -1;
3150 int dysymtab_idx = -1;
3154 /* Return now if already built. */
3155 if (mdata->header.ncmds != 0)
3158 /* Fill in the file type, if not already set. */
3159 if (mdata->header.filetype == 0)
3161 if (abfd->flags & EXEC_P)
3162 mdata->header.filetype = BFD_MACH_O_MH_EXECUTE;
3163 else if (abfd->flags & DYNAMIC)
3164 mdata->header.filetype = BFD_MACH_O_MH_DYLIB;
3166 mdata->header.filetype = BFD_MACH_O_MH_OBJECT;
3169 /* If hasn't already been done, flatten sections list, and sort
3170 if/when required. Must be done before the symbol table is adjusted,
3171 since that depends on properly numbered sections. */
3172 if (mdata->nsects == 0 || mdata->sections == NULL)
3173 if (! bfd_mach_o_mangle_sections (abfd, mdata))
3176 /* Order the symbol table, fill-in/check mach-o specific fields and
3177 partition out any indirect symbols. */
3178 if (!bfd_mach_o_mangle_symbols (abfd))
3181 /* Segment commands. */
3182 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3184 /* Only one segment for all the sections. But the segment is
3185 optional if there is no sections. */
3186 nbr_segcmd = (mdata->nsects > 0) ? 1 : 0;
3190 bfd_mach_o_section *prev_sect = NULL;
3192 /* One pagezero segment and one linkedit segment. */
3195 /* Create one segment for associated segment name in sections.
3196 Assume that sections with the same segment name are consecutive. */
3197 for (i = 0; i < mdata->nsects; i++)
3199 bfd_mach_o_section *this_sect = mdata->sections[i];
3201 if (prev_sect == NULL
3202 || strcmp (prev_sect->segname, this_sect->segname) != 0)
3205 prev_sect = this_sect;
3210 nbr_commands = nbr_segcmd;
3212 /* One command for the symbol table (only if there are symbols. */
3213 if (bfd_get_symcount (abfd) > 0)
3214 symtab_idx = nbr_commands++;
3217 This is a rather crude test for whether we should build a dysymtab. */
3218 if (bfd_mach_o_should_emit_dysymtab ()
3219 && bfd_get_symcount (abfd))
3221 /* If there should be a case where a dysymtab could be emitted without
3222 a symtab (seems improbable), this would need amending. */
3223 dysymtab_idx = nbr_commands++;
3226 /* Add an entry point command. */
3227 if (mdata->header.filetype == BFD_MACH_O_MH_EXECUTE
3228 && bfd_get_start_address (abfd) != 0)
3229 main_idx = nbr_commands++;
3231 /* Well, we must have a header, at least. */
3232 mdata->filelen = wide ? BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3234 /* A bit unusual, but no content is valid;
3235 as -n empty.s -o empty.o */
3236 if (nbr_commands == 0)
3238 /* Layout commands (well none...) and set headers command fields. */
3239 return bfd_mach_o_layout_commands (mdata);
3242 /* Create commands for segments (and symtabs), prepend them. */
3243 commands = bfd_zalloc (abfd, nbr_commands * sizeof (bfd_mach_o_load_command));
3244 if (commands == NULL)
3246 for (i = 0; i < nbr_commands - 1; i++)
3247 commands[i].next = &commands[i + 1];
3248 commands[nbr_commands - 1].next = mdata->first_command;
3249 if (mdata->first_command == NULL)
3250 mdata->last_command = &commands[nbr_commands - 1];
3251 mdata->first_command = &commands[0];
3253 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT && nbr_segcmd != 0)
3255 /* For object file, there is only one segment. */
3256 bfd_mach_o_init_segment (mdata, &commands[0], "", mdata->nsects);
3258 else if (nbr_segcmd != 0)
3260 bfd_mach_o_load_command *cmd;
3262 BFD_ASSERT (nbr_segcmd >= 2);
3266 bfd_mach_o_init_segment (mdata, cmd, "__PAGEZERO", 0);
3268 /* Segments from sections. */
3270 for (i = 0; i < mdata->nsects;)
3272 const char *segname = mdata->sections[i]->segname;
3273 unsigned int nbr_sect = 1;
3275 /* Count number of sections for this segment. */
3276 for (i++; i < mdata->nsects; i++)
3277 if (strcmp (mdata->sections[i]->segname, segname) == 0)
3282 bfd_mach_o_init_segment (mdata, cmd, segname, nbr_sect);
3287 bfd_mach_o_init_segment (mdata, cmd, "__LINKEDIT", 0);
3290 if (symtab_idx >= 0)
3292 /* Init symtab command. */
3293 bfd_mach_o_load_command *cmd = &commands[symtab_idx];
3295 cmd->type = BFD_MACH_O_LC_SYMTAB;
3296 cmd->type_required = FALSE;
3299 /* If required, setup symtab command, see comment above about the quality
3301 if (dysymtab_idx >= 0)
3303 bfd_mach_o_load_command *cmd = &commands[dysymtab_idx];
3305 cmd->type = BFD_MACH_O_LC_DYSYMTAB;
3306 cmd->type_required = FALSE;
3309 /* Create the main command. */
3312 bfd_mach_o_load_command *cmd = &commands[main_idx];
3314 cmd->type = BFD_MACH_O_LC_MAIN;
3315 cmd->type_required = TRUE;
3317 cmd->command.main.entryoff = 0;
3318 cmd->command.main.stacksize = 0;
3321 /* Layout commands. */
3322 if (! bfd_mach_o_layout_commands (mdata))
3325 /* So, now we have sized the commands and the filelen set to that.
3326 Now we can build the segment command and set the section file offsets. */
3327 if (mdata->header.filetype == BFD_MACH_O_MH_OBJECT)
3329 for (i = 0; i < nbr_segcmd; i++)
3330 if (!bfd_mach_o_build_obj_seg_command
3331 (abfd, &commands[i].command.segment))
3338 /* Skip pagezero and linkedit segments. */
3339 for (i = 1; i < nbr_segcmd - 1; i++)
3341 bfd_mach_o_segment_command *seg = &commands[i].command.segment;
3343 if (!bfd_mach_o_build_exec_seg_command (abfd, seg))
3346 if (seg->vmaddr + seg->vmsize > maxvma)
3347 maxvma = seg->vmaddr + seg->vmsize;
3350 /* Set the size of __PAGEZERO. */
3351 commands[0].command.segment.vmsize =
3352 commands[1].command.segment.vmaddr;
3354 /* Set the vma and fileoff of __LINKEDIT. */
3355 commands[nbr_segcmd - 1].command.segment.vmaddr = maxvma;
3356 commands[nbr_segcmd - 1].command.segment.fileoff = mdata->filelen;
3358 /* Set entry point (once segments have been laid out). */
3360 commands[main_idx].command.main.entryoff =
3361 bfd_get_start_address (abfd) - commands[1].command.segment.vmaddr;
3367 /* Set the contents of a section. */
3370 bfd_mach_o_set_section_contents (bfd *abfd,
3372 const void * location,
3374 bfd_size_type count)
3378 /* Trying to write the first section contents will trigger the creation of
3379 the load commands if they are not already present. */
3380 if (!abfd->output_has_begun && !bfd_mach_o_build_commands (abfd))
3386 pos = section->filepos + offset;
3387 if (bfd_seek (abfd, pos, SEEK_SET) != 0
3388 || bfd_bwrite (location, count, abfd) != count)
3395 bfd_mach_o_sizeof_headers (bfd *a ATTRIBUTE_UNUSED,
3396 struct bfd_link_info *info ATTRIBUTE_UNUSED)
3401 /* Make an empty symbol. This is required only because
3402 bfd_make_section_anyway wants to create a symbol for the section. */
3405 bfd_mach_o_make_empty_symbol (bfd *abfd)
3407 asymbol *new_symbol;
3409 new_symbol = bfd_zalloc (abfd, sizeof (bfd_mach_o_asymbol));
3410 if (new_symbol == NULL)
3412 new_symbol->the_bfd = abfd;
3413 new_symbol->udata.i = SYM_MACHO_FIELDS_UNSET;
3418 bfd_mach_o_read_header (bfd *abfd, file_ptr hdr_off, bfd_mach_o_header *header)
3420 struct mach_o_header_external raw;
3422 bfd_vma (*get32) (const void *) = NULL;
3424 /* Just read the magic number. */
3425 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
3426 || bfd_bread (raw.magic, sizeof (raw.magic), abfd) != 4)
3429 if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3431 header->byteorder = BFD_ENDIAN_BIG;
3432 header->magic = BFD_MACH_O_MH_MAGIC;
3433 header->version = 1;
3436 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC)
3438 header->byteorder = BFD_ENDIAN_LITTLE;
3439 header->magic = BFD_MACH_O_MH_MAGIC;
3440 header->version = 1;
3443 else if (bfd_getb32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3445 header->byteorder = BFD_ENDIAN_BIG;
3446 header->magic = BFD_MACH_O_MH_MAGIC_64;
3447 header->version = 2;
3450 else if (bfd_getl32 (raw.magic) == BFD_MACH_O_MH_MAGIC_64)
3452 header->byteorder = BFD_ENDIAN_LITTLE;
3453 header->magic = BFD_MACH_O_MH_MAGIC_64;
3454 header->version = 2;
3459 header->byteorder = BFD_ENDIAN_UNKNOWN;
3463 /* Once the size of the header is known, read the full header. */
3464 size = mach_o_wide_p (header) ?
3465 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
3467 if (bfd_seek (abfd, hdr_off, SEEK_SET) != 0
3468 || bfd_bread (&raw, size, abfd) != size)
3471 header->cputype = (*get32) (raw.cputype);
3472 header->cpusubtype = (*get32) (raw.cpusubtype);
3473 header->filetype = (*get32) (raw.filetype);
3474 header->ncmds = (*get32) (raw.ncmds);
3475 header->sizeofcmds = (*get32) (raw.sizeofcmds);
3476 header->flags = (*get32) (raw.flags);
3478 if (mach_o_wide_p (header))
3479 header->reserved = (*get32) (raw.reserved);
3481 header->reserved = 0;
3487 bfd_mach_o_new_section_hook (bfd *abfd, asection *sec)
3489 bfd_mach_o_section *s;
3490 unsigned bfdalign = bfd_get_section_alignment (abfd, sec);
3492 s = bfd_mach_o_get_mach_o_section (sec);
3496 static const mach_o_section_name_xlat * xlat;
3498 s = (bfd_mach_o_section *) bfd_zalloc (abfd, sizeof (*s));
3501 sec->used_by_bfd = s;
3502 s->bfdsection = sec;
3504 /* Create the Darwin seg/sect name pair from the bfd name.
3505 If this is a canonical name for which a specific paiting exists
3506 there will also be defined flags, type, attribute and alignment
3508 xlat = bfd_mach_o_convert_section_name_to_mach_o (abfd, sec, s);
3511 s->flags = xlat->macho_sectype | xlat->macho_secattr;
3512 s->align = xlat->sectalign > bfdalign ? xlat->sectalign
3514 (void) bfd_set_section_alignment (abfd, sec, s->align);
3515 bfd_flags = bfd_get_section_flags (abfd, sec);
3516 if (bfd_flags == SEC_NO_FLAGS)
3517 bfd_set_section_flags (abfd, sec, xlat->bfd_flags);
3520 /* Create default flags. */
3521 bfd_mach_o_set_section_flags_from_bfd (abfd, sec);
3524 return _bfd_generic_new_section_hook (abfd, sec);
3528 bfd_mach_o_init_section_from_mach_o (bfd *abfd, asection *sec,
3532 bfd_mach_o_section *section;
3534 flags = bfd_get_section_flags (abfd, sec);
3535 section = bfd_mach_o_get_mach_o_section (sec);
3537 /* TODO: see if we should use the xlat system for doing this by
3538 preference and fall back to this for unknown sections. */
3540 if (flags == SEC_NO_FLAGS)
3542 /* Try to guess flags. */
3543 if (section->flags & BFD_MACH_O_S_ATTR_DEBUG)
3544 flags = SEC_DEBUGGING;
3548 if ((section->flags & BFD_MACH_O_SECTION_TYPE_MASK)
3549 != BFD_MACH_O_S_ZEROFILL)
3552 if (prot & BFD_MACH_O_PROT_EXECUTE)
3554 if (prot & BFD_MACH_O_PROT_WRITE)
3556 else if (prot & BFD_MACH_O_PROT_READ)
3557 flags |= SEC_READONLY;
3563 if ((flags & SEC_DEBUGGING) == 0)
3567 if (section->offset != 0)
3568 flags |= SEC_HAS_CONTENTS;
3569 if (section->nreloc != 0)
3572 bfd_set_section_flags (abfd, sec, flags);
3574 sec->vma = section->addr;
3575 sec->lma = section->addr;
3576 sec->size = section->size;
3577 sec->filepos = section->offset;
3578 sec->alignment_power = section->align;
3579 sec->segment_mark = 0;
3580 sec->reloc_count = section->nreloc;
3581 sec->rel_filepos = section->reloff;
3585 bfd_mach_o_make_bfd_section (bfd *abfd,
3586 const unsigned char *segname,
3587 const unsigned char *sectname)
3592 bfd_mach_o_convert_section_name_to_bfd
3593 (abfd, (const char *)segname, (const char *)sectname, &sname, &flags);
3597 return bfd_make_section_anyway_with_flags (abfd, sname, flags);
3601 bfd_mach_o_read_section_32 (bfd *abfd, unsigned long prot)
3603 struct mach_o_section_32_external raw;
3605 bfd_mach_o_section *section;
3607 if (bfd_bread (&raw, BFD_MACH_O_SECTION_SIZE, abfd)
3608 != BFD_MACH_O_SECTION_SIZE)
3611 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3615 section = bfd_mach_o_get_mach_o_section (sec);
3616 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3617 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3618 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3619 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3620 section->addr = bfd_h_get_32 (abfd, raw.addr);
3621 section->size = bfd_h_get_32 (abfd, raw.size);
3622 section->offset = bfd_h_get_32 (abfd, raw.offset);
3623 section->align = bfd_h_get_32 (abfd, raw.align);
3624 /* PR 17512: file: 0017eb76. */
3625 if (section->align > 64)
3628 (_("bfd_mach_o_read_section_32: overlarge alignment value: %#lx, "
3629 "using 32 instead"), section->align);
3630 section->align = 32;
3632 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3633 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3634 section->flags = bfd_h_get_32 (abfd, raw.flags);
3635 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3636 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3637 section->reserved3 = 0;
3639 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3645 bfd_mach_o_read_section_64 (bfd *abfd, unsigned long prot)
3647 struct mach_o_section_64_external raw;
3649 bfd_mach_o_section *section;
3651 if (bfd_bread (&raw, BFD_MACH_O_SECTION_64_SIZE, abfd)
3652 != BFD_MACH_O_SECTION_64_SIZE)
3655 sec = bfd_mach_o_make_bfd_section (abfd, raw.segname, raw.sectname);
3659 section = bfd_mach_o_get_mach_o_section (sec);
3660 memcpy (section->segname, raw.segname, sizeof (raw.segname));
3661 section->segname[BFD_MACH_O_SEGNAME_SIZE] = 0;
3662 memcpy (section->sectname, raw.sectname, sizeof (raw.sectname));
3663 section->sectname[BFD_MACH_O_SECTNAME_SIZE] = 0;
3664 section->addr = bfd_h_get_64 (abfd, raw.addr);
3665 section->size = bfd_h_get_64 (abfd, raw.size);
3666 section->offset = bfd_h_get_32 (abfd, raw.offset);
3667 section->align = bfd_h_get_32 (abfd, raw.align);
3668 if (section->align > 64)
3671 (_("bfd_mach_o_read_section_64: overlarge alignment value: %#lx, "
3672 "using 32 instead"), section->align);
3673 section->align = 32;
3675 section->reloff = bfd_h_get_32 (abfd, raw.reloff);
3676 section->nreloc = bfd_h_get_32 (abfd, raw.nreloc);
3677 section->flags = bfd_h_get_32 (abfd, raw.flags);
3678 section->reserved1 = bfd_h_get_32 (abfd, raw.reserved1);
3679 section->reserved2 = bfd_h_get_32 (abfd, raw.reserved2);
3680 section->reserved3 = bfd_h_get_32 (abfd, raw.reserved3);
3682 bfd_mach_o_init_section_from_mach_o (abfd, sec, prot);
3688 bfd_mach_o_read_section (bfd *abfd, unsigned long prot, unsigned int wide)
3691 return bfd_mach_o_read_section_64 (abfd, prot);
3693 return bfd_mach_o_read_section_32 (abfd, prot);
3697 bfd_mach_o_read_symtab_symbol (bfd *abfd,
3698 bfd_mach_o_symtab_command *sym,
3699 bfd_mach_o_asymbol *s,
3702 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3703 unsigned int wide = mach_o_wide_p (&mdata->header);
3704 unsigned int symwidth =
3705 wide ? BFD_MACH_O_NLIST_64_SIZE : BFD_MACH_O_NLIST_SIZE;
3706 unsigned int symoff = sym->symoff + (i * symwidth);
3707 struct mach_o_nlist_64_external raw;
3708 unsigned char type = -1;
3709 unsigned char section = -1;
3711 symvalue value = -1;
3712 unsigned long stroff = -1;
3713 unsigned int symtype = -1;
3715 BFD_ASSERT (sym->strtab != NULL);
3717 if (bfd_seek (abfd, symoff, SEEK_SET) != 0
3718 || bfd_bread (&raw, symwidth, abfd) != symwidth)
3721 /* xgettext:c-format */
3722 (_("bfd_mach_o_read_symtab_symbol: unable to read %d bytes at %u"),
3727 stroff = bfd_h_get_32 (abfd, raw.n_strx);
3728 type = bfd_h_get_8 (abfd, raw.n_type);
3729 symtype = type & BFD_MACH_O_N_TYPE;
3730 section = bfd_h_get_8 (abfd, raw.n_sect);
3731 desc = bfd_h_get_16 (abfd, raw.n_desc);
3733 value = bfd_h_get_64 (abfd, raw.n_value);
3735 value = bfd_h_get_32 (abfd, raw.n_value);
3737 if (stroff >= sym->strsize)
3740 /* xgettext:c-format */
3741 (_("bfd_mach_o_read_symtab_symbol: name out of range (%lu >= %u)"),
3747 s->symbol.the_bfd = abfd;
3748 s->symbol.name = sym->strtab + stroff;
3749 s->symbol.value = value;
3750 s->symbol.flags = 0x0;
3751 s->symbol.udata.i = i;
3753 s->n_sect = section;
3756 if (type & BFD_MACH_O_N_STAB)
3758 s->symbol.flags |= BSF_DEBUGGING;
3759 s->symbol.section = bfd_und_section_ptr;
3771 if ((section > 0) && (section <= mdata->nsects))
3773 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3775 s->symbol.value - mdata->sections[section - 1]->addr;
3782 if (type & (BFD_MACH_O_N_PEXT | BFD_MACH_O_N_EXT))
3783 s->symbol.flags |= BSF_GLOBAL;
3785 s->symbol.flags |= BSF_LOCAL;
3789 case BFD_MACH_O_N_UNDF:
3790 if (type == (BFD_MACH_O_N_UNDF | BFD_MACH_O_N_EXT)
3791 && s->symbol.value != 0)
3793 /* A common symbol. */
3794 s->symbol.section = bfd_com_section_ptr;
3795 s->symbol.flags = BSF_NO_FLAGS;
3799 s->symbol.section = bfd_und_section_ptr;
3800 if (s->n_desc & BFD_MACH_O_N_WEAK_REF)
3801 s->symbol.flags |= BSF_WEAK;
3804 case BFD_MACH_O_N_PBUD:
3805 s->symbol.section = bfd_und_section_ptr;
3807 case BFD_MACH_O_N_ABS:
3808 s->symbol.section = bfd_abs_section_ptr;
3810 case BFD_MACH_O_N_SECT:
3811 if ((section > 0) && (section <= mdata->nsects))
3813 s->symbol.section = mdata->sections[section - 1]->bfdsection;
3815 s->symbol.value - mdata->sections[section - 1]->addr;
3819 /* Mach-O uses 0 to mean "no section"; not an error. */
3823 /* xgettext:c-format */
3824 (_("bfd_mach_o_read_symtab_symbol: "
3825 "symbol \"%s\" specified invalid section %d (max %lu): "
3826 "setting to undefined"),
3827 s->symbol.name, section, mdata->nsects);
3829 s->symbol.section = bfd_und_section_ptr;
3832 case BFD_MACH_O_N_INDR:
3833 /* FIXME: we don't follow the BFD convention as this indirect symbol
3834 won't be followed by the referenced one. This looks harmless
3835 unless we start using the linker. */
3836 s->symbol.flags |= BSF_INDIRECT;
3837 s->symbol.section = bfd_ind_section_ptr;
3838 s->symbol.value = 0;
3842 /* xgettext:c-format */
3843 (_("bfd_mach_o_read_symtab_symbol: "
3844 "symbol \"%s\" specified invalid type field 0x%x: "
3845 "setting to undefined"), s->symbol.name, symtype);
3846 s->symbol.section = bfd_und_section_ptr;
3855 bfd_mach_o_read_symtab_strtab (bfd *abfd)
3857 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3858 bfd_mach_o_symtab_command *sym = mdata->symtab;
3860 /* Fail if there is no symtab. */
3864 /* Success if already loaded. */
3868 if (abfd->flags & BFD_IN_MEMORY)
3870 struct bfd_in_memory *b;
3872 b = (struct bfd_in_memory *) abfd->iostream;
3874 if ((sym->stroff + sym->strsize) > b->size)
3876 bfd_set_error (bfd_error_file_truncated);
3879 sym->strtab = (char *) b->buffer + sym->stroff;
3883 /* See PR 21840 for a reproducer. */
3884 if ((sym->strsize + 1) == 0)
3886 sym->strtab = bfd_alloc (abfd, sym->strsize + 1);
3887 if (sym->strtab == NULL)
3890 if (bfd_seek (abfd, sym->stroff, SEEK_SET) != 0
3891 || bfd_bread (sym->strtab, sym->strsize, abfd) != sym->strsize)
3893 /* PR 17512: file: 10888-1609-0.004. */
3894 bfd_release (abfd, sym->strtab);
3896 bfd_set_error (bfd_error_file_truncated);
3899 /* Zero terminate the string table. */
3900 sym->strtab[sym->strsize] = 0;
3907 bfd_mach_o_read_symtab_symbols (bfd *abfd)
3909 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
3910 bfd_mach_o_symtab_command *sym = mdata->symtab;
3913 if (sym == NULL || sym->symbols)
3914 /* Return now if there are no symbols or if already loaded. */
3917 sym->symbols = bfd_alloc2 (abfd, sym->nsyms, sizeof (bfd_mach_o_asymbol));
3918 if (sym->symbols == NULL)
3920 _bfd_error_handler (_("bfd_mach_o_read_symtab_symbols: "
3921 "unable to allocate memory for symbols"));
3926 if (!bfd_mach_o_read_symtab_strtab (abfd))
3929 for (i = 0; i < sym->nsyms; i++)
3930 if (!bfd_mach_o_read_symtab_symbol (abfd, sym, &sym->symbols[i], i))
3936 bfd_release (abfd, sym->symbols);
3937 sym->symbols = NULL;
3943 bfd_mach_o_i386_flavour_string (unsigned int flavour)
3945 switch ((int) flavour)
3947 case BFD_MACH_O_x86_THREAD_STATE32: return "x86_THREAD_STATE32";
3948 case BFD_MACH_O_x86_FLOAT_STATE32: return "x86_FLOAT_STATE32";
3949 case BFD_MACH_O_x86_EXCEPTION_STATE32: return "x86_EXCEPTION_STATE32";
3950 case BFD_MACH_O_x86_THREAD_STATE64: return "x86_THREAD_STATE64";
3951 case BFD_MACH_O_x86_FLOAT_STATE64: return "x86_FLOAT_STATE64";
3952 case BFD_MACH_O_x86_EXCEPTION_STATE64: return "x86_EXCEPTION_STATE64";
3953 case BFD_MACH_O_x86_THREAD_STATE: return "x86_THREAD_STATE";
3954 case BFD_MACH_O_x86_FLOAT_STATE: return "x86_FLOAT_STATE";
3955 case BFD_MACH_O_x86_EXCEPTION_STATE: return "x86_EXCEPTION_STATE";
3956 case BFD_MACH_O_x86_DEBUG_STATE32: return "x86_DEBUG_STATE32";
3957 case BFD_MACH_O_x86_DEBUG_STATE64: return "x86_DEBUG_STATE64";
3958 case BFD_MACH_O_x86_DEBUG_STATE: return "x86_DEBUG_STATE";
3959 case BFD_MACH_O_x86_THREAD_STATE_NONE: return "x86_THREAD_STATE_NONE";
3960 default: return "UNKNOWN";
3965 bfd_mach_o_ppc_flavour_string (unsigned int flavour)
3967 switch ((int) flavour)
3969 case BFD_MACH_O_PPC_THREAD_STATE: return "PPC_THREAD_STATE";
3970 case BFD_MACH_O_PPC_FLOAT_STATE: return "PPC_FLOAT_STATE";
3971 case BFD_MACH_O_PPC_EXCEPTION_STATE: return "PPC_EXCEPTION_STATE";
3972 case BFD_MACH_O_PPC_VECTOR_STATE: return "PPC_VECTOR_STATE";
3973 case BFD_MACH_O_PPC_THREAD_STATE64: return "PPC_THREAD_STATE64";
3974 case BFD_MACH_O_PPC_EXCEPTION_STATE64: return "PPC_EXCEPTION_STATE64";
3975 default: return "UNKNOWN";
3980 bfd_mach_o_read_dylinker (bfd *abfd, bfd_mach_o_load_command *command)
3982 bfd_mach_o_dylinker_command *cmd = &command->command.dylinker;
3983 struct mach_o_str_command_external raw;
3984 unsigned int nameoff;
3985 unsigned int namelen;
3987 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
3990 nameoff = bfd_h_get_32 (abfd, raw.str);
3992 cmd->name_offset = nameoff;
3993 namelen = command->len - nameoff;
3994 nameoff += command->offset;
3995 cmd->name_str = bfd_alloc (abfd, namelen);
3996 if (cmd->name_str == NULL)
3998 if (bfd_seek (abfd, nameoff, SEEK_SET) != 0
3999 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
4005 bfd_mach_o_read_dylib (bfd *abfd, bfd_mach_o_load_command *command)
4007 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4008 bfd_mach_o_dylib_command *cmd = &command->command.dylib;
4009 struct mach_o_dylib_command_external raw;
4010 unsigned int nameoff;
4011 unsigned int namelen;
4013 switch (command->type)
4015 case BFD_MACH_O_LC_LOAD_DYLIB:
4016 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
4017 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
4018 case BFD_MACH_O_LC_ID_DYLIB:
4019 case BFD_MACH_O_LC_REEXPORT_DYLIB:
4020 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
4027 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4030 nameoff = bfd_h_get_32 (abfd, raw.name);
4031 cmd->timestamp = bfd_h_get_32 (abfd, raw.timestamp);
4032 cmd->current_version = bfd_h_get_32 (abfd, raw.current_version);
4033 cmd->compatibility_version = bfd_h_get_32 (abfd, raw.compatibility_version);
4035 cmd->name_offset = command->offset + nameoff;
4036 namelen = command->len - nameoff;
4037 cmd->name_str = bfd_alloc (abfd, namelen);
4038 if (cmd->name_str == NULL)
4040 if (bfd_seek (abfd, mdata->hdr_offset + cmd->name_offset, SEEK_SET) != 0
4041 || bfd_bread (cmd->name_str, namelen, abfd) != namelen)
4047 bfd_mach_o_read_prebound_dylib (bfd *abfd,
4048 bfd_mach_o_load_command *command)
4050 bfd_mach_o_prebound_dylib_command *cmd = &command->command.prebound_dylib;
4051 struct mach_o_prebound_dylib_command_external raw;
4052 unsigned int nameoff;
4053 unsigned int modoff;
4054 unsigned int str_len;
4057 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4060 nameoff = bfd_h_get_32 (abfd, raw.name);
4061 modoff = bfd_h_get_32 (abfd, raw.linked_modules);
4062 if (nameoff > command->len || modoff > command->len)
4065 str_len = command->len - sizeof (raw);
4066 str = bfd_alloc (abfd, str_len);
4069 if (bfd_bread (str, str_len, abfd) != str_len)
4072 cmd->name_offset = command->offset + nameoff;
4073 cmd->nmodules = bfd_h_get_32 (abfd, raw.nmodules);
4074 cmd->linked_modules_offset = command->offset + modoff;
4076 cmd->name_str = (char *)str + nameoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
4077 cmd->linked_modules = str + modoff - (sizeof (raw) + BFD_MACH_O_LC_SIZE);
4082 bfd_mach_o_read_prebind_cksum (bfd *abfd,
4083 bfd_mach_o_load_command *command)
4085 bfd_mach_o_prebind_cksum_command *cmd = &command->command.prebind_cksum;
4086 struct mach_o_prebind_cksum_command_external raw;
4088 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4091 cmd->cksum = bfd_get_32 (abfd, raw.cksum);
4096 bfd_mach_o_read_twolevel_hints (bfd *abfd,
4097 bfd_mach_o_load_command *command)
4099 bfd_mach_o_twolevel_hints_command *cmd = &command->command.twolevel_hints;
4100 struct mach_o_twolevel_hints_command_external raw;
4102 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4105 cmd->offset = bfd_get_32 (abfd, raw.offset);
4106 cmd->nhints = bfd_get_32 (abfd, raw.nhints);
4111 bfd_mach_o_read_fvmlib (bfd *abfd, bfd_mach_o_load_command *command)
4113 bfd_mach_o_fvmlib_command *fvm = &command->command.fvmlib;
4114 struct mach_o_fvmlib_command_external raw;
4115 unsigned int nameoff;
4116 unsigned int namelen;
4118 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4121 nameoff = bfd_h_get_32 (abfd, raw.name);
4122 fvm->minor_version = bfd_h_get_32 (abfd, raw.minor_version);
4123 fvm->header_addr = bfd_h_get_32 (abfd, raw.header_addr);
4125 fvm->name_offset = command->offset + nameoff;
4126 namelen = command->len - nameoff;
4127 fvm->name_str = bfd_alloc (abfd, namelen);
4128 if (fvm->name_str == NULL)
4130 if (bfd_seek (abfd, fvm->name_offset, SEEK_SET) != 0
4131 || bfd_bread (fvm->name_str, namelen, abfd) != namelen)
4137 bfd_mach_o_read_thread (bfd *abfd, bfd_mach_o_load_command *command)
4139 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4140 bfd_mach_o_thread_command *cmd = &command->command.thread;
4141 unsigned int offset;
4142 unsigned int nflavours;
4145 BFD_ASSERT ((command->type == BFD_MACH_O_LC_THREAD)
4146 || (command->type == BFD_MACH_O_LC_UNIXTHREAD));
4148 /* Count the number of threads. */
4151 while (offset != command->len)
4153 struct mach_o_thread_command_external raw;
4155 if (offset >= command->len)
4158 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
4159 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4162 offset += sizeof (raw) + bfd_h_get_32 (abfd, raw.count) * 4;
4166 /* Allocate threads. */
4167 cmd->flavours = bfd_alloc2
4168 (abfd, nflavours, sizeof (bfd_mach_o_thread_flavour));
4169 if (cmd->flavours == NULL)
4171 cmd->nflavours = nflavours;
4175 while (offset != command->len)
4177 struct mach_o_thread_command_external raw;
4179 if (offset >= command->len)
4182 if (nflavours >= cmd->nflavours)
4185 if (bfd_seek (abfd, command->offset + offset, SEEK_SET) != 0
4186 || bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4189 cmd->flavours[nflavours].flavour = bfd_h_get_32 (abfd, raw.flavour);
4190 cmd->flavours[nflavours].offset = command->offset + offset + sizeof (raw);
4191 cmd->flavours[nflavours].size = bfd_h_get_32 (abfd, raw.count) * 4;
4192 offset += cmd->flavours[nflavours].size + sizeof (raw);
4196 for (i = 0; i < nflavours; i++)
4199 unsigned int snamelen;
4201 const char *flavourstr;
4202 const char *prefix = "LC_THREAD";
4205 switch (mdata->header.cputype)
4207 case BFD_MACH_O_CPU_TYPE_POWERPC:
4208 case BFD_MACH_O_CPU_TYPE_POWERPC_64:
4210 bfd_mach_o_ppc_flavour_string (cmd->flavours[i].flavour);
4212 case BFD_MACH_O_CPU_TYPE_I386:
4213 case BFD_MACH_O_CPU_TYPE_X86_64:
4215 bfd_mach_o_i386_flavour_string (cmd->flavours[i].flavour);
4218 flavourstr = "UNKNOWN_ARCHITECTURE";
4222 snamelen = strlen (prefix) + 1 + 20 + 1 + strlen (flavourstr) + 1;
4223 sname = bfd_alloc (abfd, snamelen);
4229 sprintf (sname, "%s.%s.%u", prefix, flavourstr, j);
4230 if (bfd_get_section_by_name (abfd, sname) == NULL)
4235 bfdsec = bfd_make_section_with_flags (abfd, sname, SEC_HAS_CONTENTS);
4239 bfdsec->size = cmd->flavours[i].size;
4240 bfdsec->filepos = cmd->flavours[i].offset;
4241 bfdsec->alignment_power = 0x0;
4243 cmd->section = bfdsec;
4250 bfd_mach_o_read_dysymtab (bfd *abfd, bfd_mach_o_load_command *command)
4252 bfd_mach_o_dysymtab_command *cmd = &command->command.dysymtab;
4253 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4255 BFD_ASSERT (command->type == BFD_MACH_O_LC_DYSYMTAB);
4258 struct mach_o_dysymtab_command_external raw;
4260 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4263 cmd->ilocalsym = bfd_h_get_32 (abfd, raw.ilocalsym);
4264 cmd->nlocalsym = bfd_h_get_32 (abfd, raw.nlocalsym);
4265 cmd->iextdefsym = bfd_h_get_32 (abfd, raw.iextdefsym);
4266 cmd->nextdefsym = bfd_h_get_32 (abfd, raw.nextdefsym);
4267 cmd->iundefsym = bfd_h_get_32 (abfd, raw.iundefsym);
4268 cmd->nundefsym = bfd_h_get_32 (abfd, raw.nundefsym);
4269 cmd->tocoff = bfd_h_get_32 (abfd, raw.tocoff);
4270 cmd->ntoc = bfd_h_get_32 (abfd, raw.ntoc);
4271 cmd->modtaboff = bfd_h_get_32 (abfd, raw.modtaboff);
4272 cmd->nmodtab = bfd_h_get_32 (abfd, raw.nmodtab);
4273 cmd->extrefsymoff = bfd_h_get_32 (abfd, raw.extrefsymoff);
4274 cmd->nextrefsyms = bfd_h_get_32 (abfd, raw.nextrefsyms);
4275 cmd->indirectsymoff = bfd_h_get_32 (abfd, raw.indirectsymoff);
4276 cmd->nindirectsyms = bfd_h_get_32 (abfd, raw.nindirectsyms);
4277 cmd->extreloff = bfd_h_get_32 (abfd, raw.extreloff);
4278 cmd->nextrel = bfd_h_get_32 (abfd, raw.nextrel);
4279 cmd->locreloff = bfd_h_get_32 (abfd, raw.locreloff);
4280 cmd->nlocrel = bfd_h_get_32 (abfd, raw.nlocrel);
4283 if (cmd->nmodtab != 0)
4286 int wide = bfd_mach_o_wide_p (abfd);
4287 unsigned int module_len = wide ? 56 : 52;
4290 bfd_alloc2 (abfd, cmd->nmodtab, sizeof (bfd_mach_o_dylib_module));
4291 if (cmd->dylib_module == NULL)
4294 if (bfd_seek (abfd, cmd->modtaboff, SEEK_SET) != 0)
4297 for (i = 0; i < cmd->nmodtab; i++)
4299 bfd_mach_o_dylib_module *module = &cmd->dylib_module[i];
4301 unsigned char buf[56];
4303 if (bfd_bread ((void *) buf, module_len, abfd) != module_len)
4306 module->module_name_idx = bfd_h_get_32 (abfd, buf + 0);
4307 module->iextdefsym = bfd_h_get_32 (abfd, buf + 4);
4308 module->nextdefsym = bfd_h_get_32 (abfd, buf + 8);
4309 module->irefsym = bfd_h_get_32 (abfd, buf + 12);
4310 module->nrefsym = bfd_h_get_32 (abfd, buf + 16);
4311 module->ilocalsym = bfd_h_get_32 (abfd, buf + 20);
4312 module->nlocalsym = bfd_h_get_32 (abfd, buf + 24);
4313 module->iextrel = bfd_h_get_32 (abfd, buf + 28);
4314 module->nextrel = bfd_h_get_32 (abfd, buf + 32);
4315 v = bfd_h_get_32 (abfd, buf +36);
4316 module->iinit = v & 0xffff;
4317 module->iterm = (v >> 16) & 0xffff;
4318 v = bfd_h_get_32 (abfd, buf + 40);
4319 module->ninit = v & 0xffff;
4320 module->nterm = (v >> 16) & 0xffff;
4323 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 44);
4324 module->objc_module_info_addr = bfd_h_get_64 (abfd, buf + 48);
4328 module->objc_module_info_addr = bfd_h_get_32 (abfd, buf + 44);
4329 module->objc_module_info_size = bfd_h_get_32 (abfd, buf + 48);
4338 cmd->dylib_toc = bfd_alloc2
4339 (abfd, cmd->ntoc, sizeof (bfd_mach_o_dylib_table_of_content));
4340 if (cmd->dylib_toc == NULL)
4343 if (bfd_seek (abfd, cmd->tocoff, SEEK_SET) != 0)
4346 for (i = 0; i < cmd->ntoc; i++)
4348 struct mach_o_dylib_table_of_contents_external raw;
4349 bfd_mach_o_dylib_table_of_content *toc = &cmd->dylib_toc[i];
4351 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4354 toc->symbol_index = bfd_h_get_32 (abfd, raw.symbol_index);
4355 toc->module_index = bfd_h_get_32 (abfd, raw.module_index);
4359 if (cmd->nindirectsyms != 0)
4363 cmd->indirect_syms = bfd_alloc2
4364 (abfd, cmd->nindirectsyms, sizeof (unsigned int));
4365 if (cmd->indirect_syms == NULL)
4368 if (bfd_seek (abfd, cmd->indirectsymoff, SEEK_SET) != 0)
4371 for (i = 0; i < cmd->nindirectsyms; i++)
4373 unsigned char raw[4];
4374 unsigned int *is = &cmd->indirect_syms[i];
4376 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4379 *is = bfd_h_get_32 (abfd, raw);
4383 if (cmd->nextrefsyms != 0)
4388 cmd->ext_refs = bfd_alloc2
4389 (abfd, cmd->nextrefsyms, sizeof (bfd_mach_o_dylib_reference));
4390 if (cmd->ext_refs == NULL)
4393 if (bfd_seek (abfd, cmd->extrefsymoff, SEEK_SET) != 0)
4396 for (i = 0; i < cmd->nextrefsyms; i++)
4398 unsigned char raw[4];
4399 bfd_mach_o_dylib_reference *ref = &cmd->ext_refs[i];
4401 if (bfd_bread (raw, sizeof (raw), abfd) != sizeof (raw))
4404 /* Fields isym and flags are written as bit-fields, thus we need
4405 a specific processing for endianness. */
4406 v = bfd_h_get_32 (abfd, raw);
4407 if (bfd_big_endian (abfd))
4409 ref->isym = (v >> 8) & 0xffffff;
4410 ref->flags = v & 0xff;
4414 ref->isym = v & 0xffffff;
4415 ref->flags = (v >> 24) & 0xff;
4420 if (mdata->dysymtab)
4422 mdata->dysymtab = cmd;
4428 bfd_mach_o_read_symtab (bfd *abfd, bfd_mach_o_load_command *command)
4430 bfd_mach_o_symtab_command *symtab = &command->command.symtab;
4431 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4432 struct mach_o_symtab_command_external raw;
4434 BFD_ASSERT (command->type == BFD_MACH_O_LC_SYMTAB);
4436 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4439 symtab->symoff = bfd_h_get_32 (abfd, raw.symoff);
4440 symtab->nsyms = bfd_h_get_32 (abfd, raw.nsyms);
4441 symtab->stroff = bfd_h_get_32 (abfd, raw.stroff);
4442 symtab->strsize = bfd_h_get_32 (abfd, raw.strsize);
4443 symtab->symbols = NULL;
4444 symtab->strtab = NULL;
4446 if (symtab->nsyms != 0)
4447 abfd->flags |= HAS_SYMS;
4451 mdata->symtab = symtab;
4456 bfd_mach_o_read_uuid (bfd *abfd, bfd_mach_o_load_command *command)
4458 bfd_mach_o_uuid_command *cmd = &command->command.uuid;
4460 BFD_ASSERT (command->type == BFD_MACH_O_LC_UUID);
4462 if (bfd_bread (cmd->uuid, 16, abfd) != 16)
4469 bfd_mach_o_read_linkedit (bfd *abfd, bfd_mach_o_load_command *command)
4471 bfd_mach_o_linkedit_command *cmd = &command->command.linkedit;
4472 struct mach_o_linkedit_data_command_external raw;
4474 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4477 cmd->dataoff = bfd_get_32 (abfd, raw.dataoff);
4478 cmd->datasize = bfd_get_32 (abfd, raw.datasize);
4483 bfd_mach_o_read_str (bfd *abfd, bfd_mach_o_load_command *command)
4485 bfd_mach_o_str_command *cmd = &command->command.str;
4486 struct mach_o_str_command_external raw;
4489 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4492 off = bfd_get_32 (abfd, raw.str);
4493 cmd->stroff = command->offset + off;
4494 cmd->str_len = command->len - off;
4495 cmd->str = bfd_alloc (abfd, cmd->str_len);
4496 if (cmd->str == NULL)
4498 if (bfd_seek (abfd, cmd->stroff, SEEK_SET) != 0
4499 || bfd_bread ((void *) cmd->str, cmd->str_len, abfd) != cmd->str_len)
4504 static unsigned char *
4505 bfd_mach_o_alloc_and_read (bfd *abfd, unsigned int off, unsigned int size)
4509 buf = bfd_alloc (abfd, size);
4512 if (bfd_seek (abfd, off, SEEK_SET) != 0
4513 || bfd_bread (buf, size, abfd) != size)
4519 bfd_mach_o_read_dyld_content (bfd *abfd, bfd_mach_o_dyld_info_command *cmd)
4521 /* Read rebase content. */
4522 if (cmd->rebase_content == NULL && cmd->rebase_size != 0)
4524 cmd->rebase_content =
4525 bfd_mach_o_alloc_and_read (abfd, cmd->rebase_off, cmd->rebase_size);
4526 if (cmd->rebase_content == NULL)
4530 /* Read bind content. */
4531 if (cmd->bind_content == NULL && cmd->bind_size != 0)
4534 bfd_mach_o_alloc_and_read (abfd, cmd->bind_off, cmd->bind_size);
4535 if (cmd->bind_content == NULL)
4539 /* Read weak bind content. */
4540 if (cmd->weak_bind_content == NULL && cmd->weak_bind_size != 0)
4542 cmd->weak_bind_content = bfd_mach_o_alloc_and_read
4543 (abfd, cmd->weak_bind_off, cmd->weak_bind_size);
4544 if (cmd->weak_bind_content == NULL)
4548 /* Read lazy bind content. */
4549 if (cmd->lazy_bind_content == NULL && cmd->lazy_bind_size != 0)
4551 cmd->lazy_bind_content = bfd_mach_o_alloc_and_read
4552 (abfd, cmd->lazy_bind_off, cmd->lazy_bind_size);
4553 if (cmd->lazy_bind_content == NULL)
4557 /* Read export content. */
4558 if (cmd->export_content == NULL && cmd->export_size != 0)
4560 cmd->export_content = bfd_mach_o_alloc_and_read
4561 (abfd, cmd->export_off, cmd->export_size);
4562 if (cmd->export_content == NULL)
4570 bfd_mach_o_read_dyld_info (bfd *abfd, bfd_mach_o_load_command *command)
4572 bfd_mach_o_dyld_info_command *cmd = &command->command.dyld_info;
4573 struct mach_o_dyld_info_command_external raw;
4575 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4578 cmd->rebase_off = bfd_get_32 (abfd, raw.rebase_off);
4579 cmd->rebase_size = bfd_get_32 (abfd, raw.rebase_size);
4580 cmd->rebase_content = NULL;
4581 cmd->bind_off = bfd_get_32 (abfd, raw.bind_off);
4582 cmd->bind_size = bfd_get_32 (abfd, raw.bind_size);
4583 cmd->bind_content = NULL;
4584 cmd->weak_bind_off = bfd_get_32 (abfd, raw.weak_bind_off);
4585 cmd->weak_bind_size = bfd_get_32 (abfd, raw.weak_bind_size);
4586 cmd->weak_bind_content = NULL;
4587 cmd->lazy_bind_off = bfd_get_32 (abfd, raw.lazy_bind_off);
4588 cmd->lazy_bind_size = bfd_get_32 (abfd, raw.lazy_bind_size);
4589 cmd->lazy_bind_content = NULL;
4590 cmd->export_off = bfd_get_32 (abfd, raw.export_off);
4591 cmd->export_size = bfd_get_32 (abfd, raw.export_size);
4592 cmd->export_content = NULL;
4597 bfd_mach_o_read_version_min (bfd *abfd, bfd_mach_o_load_command *command)
4599 bfd_mach_o_version_min_command *cmd = &command->command.version_min;
4600 struct mach_o_version_min_command_external raw;
4602 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4605 cmd->version = bfd_get_32 (abfd, raw.version);
4606 cmd->sdk = bfd_get_32 (abfd, raw.sdk);
4611 bfd_mach_o_read_encryption_info (bfd *abfd, bfd_mach_o_load_command *command)
4613 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4614 struct mach_o_encryption_info_command_external raw;
4616 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4619 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4620 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4621 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4626 bfd_mach_o_read_encryption_info_64 (bfd *abfd, bfd_mach_o_load_command *command)
4628 bfd_mach_o_encryption_info_command *cmd = &command->command.encryption_info;
4629 struct mach_o_encryption_info_64_command_external raw;
4631 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4634 cmd->cryptoff = bfd_get_32 (abfd, raw.cryptoff);
4635 cmd->cryptsize = bfd_get_32 (abfd, raw.cryptsize);
4636 cmd->cryptid = bfd_get_32 (abfd, raw.cryptid);
4641 bfd_mach_o_read_main (bfd *abfd, bfd_mach_o_load_command *command)
4643 bfd_mach_o_main_command *cmd = &command->command.main;
4644 struct mach_o_entry_point_command_external raw;
4646 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4649 cmd->entryoff = bfd_get_64 (abfd, raw.entryoff);
4650 cmd->stacksize = bfd_get_64 (abfd, raw.stacksize);
4655 bfd_mach_o_read_source_version (bfd *abfd, bfd_mach_o_load_command *command)
4657 bfd_mach_o_source_version_command *cmd = &command->command.source_version;
4658 struct mach_o_source_version_command_external raw;
4661 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4664 ver = bfd_get_64 (abfd, raw.version);
4665 /* Note: we use a serie of shift to avoid shift > 32 (for which gcc
4666 generates warnings) in case of the host doesn't support 64 bit
4668 cmd->e = ver & 0x3ff;
4670 cmd->d = ver & 0x3ff;
4672 cmd->c = ver & 0x3ff;
4674 cmd->b = ver & 0x3ff;
4676 cmd->a = ver & 0xffffff;
4681 bfd_mach_o_read_note (bfd *abfd, bfd_mach_o_load_command *command)
4683 bfd_mach_o_note_command *cmd = &command->command.note;
4684 struct mach_o_note_command_external raw;
4686 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4689 memcpy (cmd->data_owner, raw.data_owner, 16);
4690 cmd->offset = bfd_get_64 (abfd, raw.offset);
4691 cmd->size = bfd_get_64 (abfd, raw.size);
4696 bfd_mach_o_read_build_version (bfd *abfd, bfd_mach_o_load_command *command)
4698 bfd_mach_o_build_version_command *cmd = &command->command.build_version;
4699 struct mach_o_build_version_command_external raw;
4701 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4704 cmd->platform = bfd_get_32 (abfd, raw.platform);
4705 cmd->minos = bfd_get_32 (abfd, raw.minos);
4706 cmd->sdk = bfd_get_32 (abfd, raw.sdk);
4707 cmd->ntools = bfd_get_32 (abfd, raw.ntools);
4712 bfd_mach_o_read_segment (bfd *abfd,
4713 bfd_mach_o_load_command *command,
4716 bfd_mach_o_segment_command *seg = &command->command.segment;
4721 struct mach_o_segment_command_64_external raw;
4723 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT_64);
4725 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4728 memcpy (seg->segname, raw.segname, 16);
4729 seg->segname[16] = '\0';
4731 seg->vmaddr = bfd_h_get_64 (abfd, raw.vmaddr);
4732 seg->vmsize = bfd_h_get_64 (abfd, raw.vmsize);
4733 seg->fileoff = bfd_h_get_64 (abfd, raw.fileoff);
4734 seg->filesize = bfd_h_get_64 (abfd, raw.filesize);
4735 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4736 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4737 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4738 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4742 struct mach_o_segment_command_32_external raw;
4744 BFD_ASSERT (command->type == BFD_MACH_O_LC_SEGMENT);
4746 if (bfd_bread (&raw, sizeof (raw), abfd) != sizeof (raw))
4749 memcpy (seg->segname, raw.segname, 16);
4750 seg->segname[16] = '\0';
4752 seg->vmaddr = bfd_h_get_32 (abfd, raw.vmaddr);
4753 seg->vmsize = bfd_h_get_32 (abfd, raw.vmsize);
4754 seg->fileoff = bfd_h_get_32 (abfd, raw.fileoff);
4755 seg->filesize = bfd_h_get_32 (abfd, raw.filesize);
4756 seg->maxprot = bfd_h_get_32 (abfd, raw.maxprot);
4757 seg->initprot = bfd_h_get_32 (abfd, raw.initprot);
4758 seg->nsects = bfd_h_get_32 (abfd, raw.nsects);
4759 seg->flags = bfd_h_get_32 (abfd, raw.flags);
4761 seg->sect_head = NULL;
4762 seg->sect_tail = NULL;
4764 for (i = 0; i < seg->nsects; i++)
4768 sec = bfd_mach_o_read_section (abfd, seg->initprot, wide);
4772 bfd_mach_o_append_section_to_segment
4773 (seg, bfd_mach_o_get_mach_o_section (sec));
4780 bfd_mach_o_read_segment_32 (bfd *abfd, bfd_mach_o_load_command *command)
4782 return bfd_mach_o_read_segment (abfd, command, 0);
4786 bfd_mach_o_read_segment_64 (bfd *abfd, bfd_mach_o_load_command *command)
4788 return bfd_mach_o_read_segment (abfd, command, 1);
4792 bfd_mach_o_read_command (bfd *abfd, bfd_mach_o_load_command *command)
4794 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4795 struct mach_o_load_command_external raw;
4798 /* Read command type and length. */
4799 if (bfd_seek (abfd, mdata->hdr_offset + command->offset, SEEK_SET) != 0
4800 || bfd_bread (&raw, BFD_MACH_O_LC_SIZE, abfd) != BFD_MACH_O_LC_SIZE)
4803 cmd = bfd_h_get_32 (abfd, raw.cmd);
4804 command->type = cmd & ~BFD_MACH_O_LC_REQ_DYLD;
4805 command->type_required = cmd & BFD_MACH_O_LC_REQ_DYLD ? TRUE : FALSE;
4806 command->len = bfd_h_get_32 (abfd, raw.cmdsize);
4808 switch (command->type)
4810 case BFD_MACH_O_LC_SEGMENT:
4811 if (!bfd_mach_o_read_segment_32 (abfd, command))
4814 case BFD_MACH_O_LC_SEGMENT_64:
4815 if (!bfd_mach_o_read_segment_64 (abfd, command))
4818 case BFD_MACH_O_LC_SYMTAB:
4819 if (!bfd_mach_o_read_symtab (abfd, command))
4822 case BFD_MACH_O_LC_SYMSEG:
4824 case BFD_MACH_O_LC_THREAD:
4825 case BFD_MACH_O_LC_UNIXTHREAD:
4826 if (!bfd_mach_o_read_thread (abfd, command))
4829 case BFD_MACH_O_LC_LOAD_DYLINKER:
4830 case BFD_MACH_O_LC_ID_DYLINKER:
4831 case BFD_MACH_O_LC_DYLD_ENVIRONMENT:
4832 if (!bfd_mach_o_read_dylinker (abfd, command))
4835 case BFD_MACH_O_LC_LOAD_DYLIB:
4836 case BFD_MACH_O_LC_LAZY_LOAD_DYLIB:
4837 case BFD_MACH_O_LC_ID_DYLIB:
4838 case BFD_MACH_O_LC_LOAD_WEAK_DYLIB:
4839 case BFD_MACH_O_LC_REEXPORT_DYLIB:
4840 case BFD_MACH_O_LC_LOAD_UPWARD_DYLIB:
4841 if (!bfd_mach_o_read_dylib (abfd, command))
4844 case BFD_MACH_O_LC_PREBOUND_DYLIB:
4845 if (!bfd_mach_o_read_prebound_dylib (abfd, command))
4848 case BFD_MACH_O_LC_LOADFVMLIB:
4849 case BFD_MACH_O_LC_IDFVMLIB:
4850 if (!bfd_mach_o_read_fvmlib (abfd, command))
4853 case BFD_MACH_O_LC_IDENT:
4854 case BFD_MACH_O_LC_FVMFILE:
4855 case BFD_MACH_O_LC_PREPAGE:
4856 case BFD_MACH_O_LC_ROUTINES:
4857 case BFD_MACH_O_LC_ROUTINES_64:
4859 case BFD_MACH_O_LC_SUB_FRAMEWORK:
4860 case BFD_MACH_O_LC_SUB_UMBRELLA:
4861 case BFD_MACH_O_LC_SUB_LIBRARY:
4862 case BFD_MACH_O_LC_SUB_CLIENT:
4863 case BFD_MACH_O_LC_RPATH:
4864 if (!bfd_mach_o_read_str (abfd, command))
4867 case BFD_MACH_O_LC_DYSYMTAB:
4868 if (!bfd_mach_o_read_dysymtab (abfd, command))
4871 case BFD_MACH_O_LC_PREBIND_CKSUM:
4872 if (!bfd_mach_o_read_prebind_cksum (abfd, command))
4875 case BFD_MACH_O_LC_TWOLEVEL_HINTS:
4876 if (!bfd_mach_o_read_twolevel_hints (abfd, command))
4879 case BFD_MACH_O_LC_UUID:
4880 if (!bfd_mach_o_read_uuid (abfd, command))
4883 case BFD_MACH_O_LC_CODE_SIGNATURE:
4884 case BFD_MACH_O_LC_SEGMENT_SPLIT_INFO:
4885 case BFD_MACH_O_LC_FUNCTION_STARTS:
4886 case BFD_MACH_O_LC_DATA_IN_CODE:
4887 case BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS:
4888 case BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT:
4889 if (!bfd_mach_o_read_linkedit (abfd, command))
4892 case BFD_MACH_O_LC_ENCRYPTION_INFO:
4893 if (!bfd_mach_o_read_encryption_info (abfd, command))
4896 case BFD_MACH_O_LC_ENCRYPTION_INFO_64:
4897 if (!bfd_mach_o_read_encryption_info_64 (abfd, command))
4900 case BFD_MACH_O_LC_DYLD_INFO:
4901 if (!bfd_mach_o_read_dyld_info (abfd, command))
4904 case BFD_MACH_O_LC_VERSION_MIN_MACOSX:
4905 case BFD_MACH_O_LC_VERSION_MIN_IPHONEOS:
4906 case BFD_MACH_O_LC_VERSION_MIN_WATCHOS:
4907 case BFD_MACH_O_LC_VERSION_MIN_TVOS:
4908 if (!bfd_mach_o_read_version_min (abfd, command))
4911 case BFD_MACH_O_LC_MAIN:
4912 if (!bfd_mach_o_read_main (abfd, command))
4915 case BFD_MACH_O_LC_SOURCE_VERSION:
4916 if (!bfd_mach_o_read_source_version (abfd, command))
4919 case BFD_MACH_O_LC_LINKER_OPTIONS:
4921 case BFD_MACH_O_LC_NOTE:
4922 if (!bfd_mach_o_read_note (abfd, command))
4925 case BFD_MACH_O_LC_BUILD_VERSION:
4926 if (!bfd_mach_o_read_build_version (abfd, command))
4931 _bfd_error_handler (_("%pB: unknown load command %#x"),
4932 abfd, command->type);
4940 bfd_mach_o_flatten_sections (bfd *abfd)
4942 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4943 bfd_mach_o_load_command *cmd;
4946 /* Count total number of sections. */
4949 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4951 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4952 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4954 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4956 mdata->nsects += seg->nsects;
4960 /* Allocate sections array. */
4961 mdata->sections = bfd_alloc2 (abfd,
4962 mdata->nsects, sizeof (bfd_mach_o_section *));
4964 /* Fill the array. */
4967 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4969 if (cmd->type == BFD_MACH_O_LC_SEGMENT
4970 || cmd->type == BFD_MACH_O_LC_SEGMENT_64)
4972 bfd_mach_o_segment_command *seg = &cmd->command.segment;
4973 bfd_mach_o_section *sec;
4975 BFD_ASSERT (csect + seg->nsects <= mdata->nsects);
4977 for (sec = seg->sect_head; sec != NULL; sec = sec->next)
4978 mdata->sections[csect++] = sec;
4984 bfd_mach_o_scan_start_address (bfd *abfd)
4986 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
4987 bfd_mach_o_thread_command *thr = NULL;
4988 bfd_mach_o_load_command *cmd;
4991 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
4992 if (cmd->type == BFD_MACH_O_LC_THREAD
4993 || cmd->type == BFD_MACH_O_LC_UNIXTHREAD)
4995 thr = &cmd->command.thread;
4998 else if (cmd->type == BFD_MACH_O_LC_MAIN && mdata->nsects > 1)
5000 bfd_mach_o_main_command *main_cmd = &cmd->command.main;
5001 bfd_mach_o_section *text_sect = mdata->sections[0];
5005 abfd->start_address = main_cmd->entryoff
5006 + (text_sect->addr - text_sect->offset);
5011 /* An object file has no start address, so do not fail if not found. */
5015 /* FIXME: create a subtarget hook ? */
5016 for (i = 0; i < thr->nflavours; i++)
5018 if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_I386)
5019 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE32))
5021 unsigned char buf[4];
5023 if (bfd_seek (abfd, thr->flavours[i].offset + 40, SEEK_SET) != 0
5024 || bfd_bread (buf, 4, abfd) != 4)
5027 abfd->start_address = bfd_h_get_32 (abfd, buf);
5029 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC)
5030 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE))
5032 unsigned char buf[4];
5034 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
5035 || bfd_bread (buf, 4, abfd) != 4)
5038 abfd->start_address = bfd_h_get_32 (abfd, buf);
5040 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_POWERPC_64)
5041 && (thr->flavours[i].flavour == BFD_MACH_O_PPC_THREAD_STATE64))
5043 unsigned char buf[8];
5045 if (bfd_seek (abfd, thr->flavours[i].offset + 0, SEEK_SET) != 0
5046 || bfd_bread (buf, 8, abfd) != 8)
5049 abfd->start_address = bfd_h_get_64 (abfd, buf);
5051 else if ((mdata->header.cputype == BFD_MACH_O_CPU_TYPE_X86_64)
5052 && (thr->flavours[i].flavour == BFD_MACH_O_x86_THREAD_STATE64))
5054 unsigned char buf[8];
5056 if (bfd_seek (abfd, thr->flavours[i].offset + (16 * 8), SEEK_SET) != 0
5057 || bfd_bread (buf, 8, abfd) != 8)
5060 abfd->start_address = bfd_h_get_64 (abfd, buf);
5068 bfd_mach_o_set_arch_mach (bfd *abfd,
5069 enum bfd_architecture arch,
5070 unsigned long machine)
5072 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5074 /* If this isn't the right architecture for this backend, and this
5075 isn't the generic backend, fail. */
5076 if (arch != bed->arch
5077 && arch != bfd_arch_unknown
5078 && bed->arch != bfd_arch_unknown)
5081 return bfd_default_set_arch_mach (abfd, arch, machine);
5085 bfd_mach_o_scan (bfd *abfd,
5086 bfd_mach_o_header *header,
5087 bfd_mach_o_data_struct *mdata)
5090 enum bfd_architecture cputype;
5091 unsigned long cpusubtype;
5092 unsigned int hdrsize;
5094 hdrsize = mach_o_wide_p (header) ?
5095 BFD_MACH_O_HEADER_64_SIZE : BFD_MACH_O_HEADER_SIZE;
5097 mdata->header = *header;
5099 abfd->flags = abfd->flags & BFD_IN_MEMORY;
5100 switch (header->filetype)
5102 case BFD_MACH_O_MH_OBJECT:
5103 abfd->flags |= HAS_RELOC;
5105 case BFD_MACH_O_MH_EXECUTE:
5106 abfd->flags |= EXEC_P;
5108 case BFD_MACH_O_MH_DYLIB:
5109 case BFD_MACH_O_MH_BUNDLE:
5110 abfd->flags |= DYNAMIC;
5114 abfd->tdata.mach_o_data = mdata;
5116 bfd_mach_o_convert_architecture (header->cputype, header->cpusubtype,
5117 &cputype, &cpusubtype);
5118 if (cputype == bfd_arch_unknown)
5121 /* xgettext:c-format */
5122 (_("bfd_mach_o_scan: unknown architecture 0x%lx/0x%lx"),
5123 header->cputype, header->cpusubtype);
5127 bfd_set_arch_mach (abfd, cputype, cpusubtype);
5129 if (header->ncmds != 0)
5131 bfd_mach_o_load_command *cmd;
5133 mdata->first_command = NULL;
5134 mdata->last_command = NULL;
5136 cmd = bfd_alloc2 (abfd, header->ncmds, sizeof (bfd_mach_o_load_command));
5140 for (i = 0; i < header->ncmds; i++)
5142 bfd_mach_o_load_command *cur = &cmd[i];
5144 bfd_mach_o_append_command (abfd, cur);
5147 cur->offset = hdrsize;
5150 bfd_mach_o_load_command *prev = &cmd[i - 1];
5151 cur->offset = prev->offset + prev->len;
5154 if (!bfd_mach_o_read_command (abfd, cur))
5159 /* Sections should be flatten before scanning start address. */
5160 bfd_mach_o_flatten_sections (abfd);
5161 if (!bfd_mach_o_scan_start_address (abfd))
5168 bfd_mach_o_mkobject_init (bfd *abfd)
5170 bfd_mach_o_data_struct *mdata = NULL;
5172 mdata = bfd_zalloc (abfd, sizeof (bfd_mach_o_data_struct));
5175 abfd->tdata.mach_o_data = mdata;
5177 mdata->header.magic = 0;
5178 mdata->header.cputype = 0;
5179 mdata->header.cpusubtype = 0;
5180 mdata->header.filetype = 0;
5181 mdata->header.ncmds = 0;
5182 mdata->header.sizeofcmds = 0;
5183 mdata->header.flags = 0;
5184 mdata->header.byteorder = BFD_ENDIAN_UNKNOWN;
5185 mdata->first_command = NULL;
5186 mdata->last_command = NULL;
5188 mdata->sections = NULL;
5189 mdata->dyn_reloc_cache = NULL;
5195 bfd_mach_o_gen_mkobject (bfd *abfd)
5197 bfd_mach_o_data_struct *mdata;
5199 if (!bfd_mach_o_mkobject_init (abfd))
5202 mdata = bfd_mach_o_get_data (abfd);
5203 mdata->header.magic = BFD_MACH_O_MH_MAGIC;
5204 mdata->header.cputype = 0;
5205 mdata->header.cpusubtype = 0;
5206 mdata->header.byteorder = abfd->xvec->byteorder;
5207 mdata->header.version = 1;
5213 bfd_mach_o_header_p (bfd *abfd,
5215 bfd_mach_o_filetype filetype,
5216 bfd_mach_o_cpu_type cputype)
5218 bfd_mach_o_header header;
5219 bfd_mach_o_data_struct *mdata;
5221 if (!bfd_mach_o_read_header (abfd, hdr_off, &header))
5224 if (! (header.byteorder == BFD_ENDIAN_BIG
5225 || header.byteorder == BFD_ENDIAN_LITTLE))
5227 _bfd_error_handler (_("unknown header byte-order value %#x"),
5232 if (! ((header.byteorder == BFD_ENDIAN_BIG
5233 && abfd->xvec->byteorder == BFD_ENDIAN_BIG
5234 && abfd->xvec->header_byteorder == BFD_ENDIAN_BIG)
5235 || (header.byteorder == BFD_ENDIAN_LITTLE
5236 && abfd->xvec->byteorder == BFD_ENDIAN_LITTLE
5237 && abfd->xvec->header_byteorder == BFD_ENDIAN_LITTLE)))
5240 /* Check cputype and filetype.
5241 In case of wildcard, do not accept magics that are handled by existing
5245 if (header.cputype != cputype)
5251 /* Do not recognize 64 architectures if not configured for 64bit targets.
5252 This could happen only for generic targets. */
5253 if (mach_o_wide_p (&header))
5260 if (header.filetype != filetype)
5265 switch (header.filetype)
5267 case BFD_MACH_O_MH_CORE:
5268 /* Handled by core_p */
5275 mdata = (bfd_mach_o_data_struct *) bfd_zalloc (abfd, sizeof (*mdata));
5278 mdata->hdr_offset = hdr_off;
5280 if (!bfd_mach_o_scan (abfd, &header, mdata))
5286 bfd_set_error (bfd_error_wrong_format);
5292 static const bfd_target *
5293 bfd_mach_o_gen_object_p (bfd *abfd)
5295 return bfd_mach_o_header_p (abfd, 0, 0, 0);
5298 static const bfd_target *
5299 bfd_mach_o_gen_core_p (bfd *abfd)
5301 return bfd_mach_o_header_p (abfd, 0, BFD_MACH_O_MH_CORE, 0);
5304 /* Return the base address of ABFD, ie the address at which the image is
5305 mapped. The possible initial pagezero is ignored. */
5308 bfd_mach_o_get_base_address (bfd *abfd)
5310 bfd_mach_o_data_struct *mdata;
5311 bfd_mach_o_load_command *cmd;
5313 /* Check for Mach-O. */
5314 if (!bfd_mach_o_valid (abfd))
5316 mdata = bfd_mach_o_get_data (abfd);
5318 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5320 if ((cmd->type == BFD_MACH_O_LC_SEGMENT
5321 || cmd->type == BFD_MACH_O_LC_SEGMENT_64))
5323 struct bfd_mach_o_segment_command *segcmd = &cmd->command.segment;
5325 if (segcmd->initprot != 0)
5326 return segcmd->vmaddr;
5332 typedef struct mach_o_fat_archentry
5334 unsigned long cputype;
5335 unsigned long cpusubtype;
5336 unsigned long offset;
5338 unsigned long align;
5339 } mach_o_fat_archentry;
5341 typedef struct mach_o_fat_data_struct
5343 unsigned long magic;
5344 unsigned long nfat_arch;
5345 mach_o_fat_archentry *archentries;
5346 } mach_o_fat_data_struct;
5349 bfd_mach_o_fat_archive_p (bfd *abfd)
5351 mach_o_fat_data_struct *adata = NULL;
5352 struct mach_o_fat_header_external hdr;
5355 if (bfd_seek (abfd, 0, SEEK_SET) != 0
5356 || bfd_bread (&hdr, sizeof (hdr), abfd) != sizeof (hdr))
5359 adata = bfd_alloc (abfd, sizeof (mach_o_fat_data_struct));
5363 adata->magic = bfd_getb32 (hdr.magic);
5364 adata->nfat_arch = bfd_getb32 (hdr.nfat_arch);
5365 if (adata->magic != 0xcafebabe)
5367 /* Avoid matching Java bytecode files, which have the same magic number.
5368 In the Java bytecode file format this field contains the JVM version,
5369 which starts at 43.0. */
5370 if (adata->nfat_arch > 30)
5373 adata->archentries =
5374 bfd_alloc2 (abfd, adata->nfat_arch, sizeof (mach_o_fat_archentry));
5375 if (adata->archentries == NULL)
5378 for (i = 0; i < adata->nfat_arch; i++)
5380 struct mach_o_fat_arch_external arch;
5381 if (bfd_bread (&arch, sizeof (arch), abfd) != sizeof (arch))
5383 adata->archentries[i].cputype = bfd_getb32 (arch.cputype);
5384 adata->archentries[i].cpusubtype = bfd_getb32 (arch.cpusubtype);
5385 adata->archentries[i].offset = bfd_getb32 (arch.offset);
5386 adata->archentries[i].size = bfd_getb32 (arch.size);
5387 adata->archentries[i].align = bfd_getb32 (arch.align);
5390 abfd->tdata.mach_o_fat_data = adata;
5396 bfd_release (abfd, adata);
5397 bfd_set_error (bfd_error_wrong_format);
5401 /* Set the filename for a fat binary member ABFD, whose bfd architecture is
5402 ARCH_TYPE/ARCH_SUBTYPE and corresponding entry in header is ENTRY.
5403 Set arelt_data and origin fields too. */
5406 bfd_mach_o_fat_member_init (bfd *abfd,
5407 enum bfd_architecture arch_type,
5408 unsigned long arch_subtype,
5409 mach_o_fat_archentry *entry)
5411 struct areltdata *areltdata;
5412 /* Create the member filename. Use ARCH_NAME. */
5413 const bfd_arch_info_type *ap = bfd_lookup_arch (arch_type, arch_subtype);
5417 /* Use the architecture name if known. */
5418 abfd->filename = xstrdup (ap->printable_name);
5422 /* Forge a uniq id. */
5423 const size_t namelen = 2 + 8 + 1 + 2 + 8 + 1;
5424 char *name = xmalloc (namelen);
5425 snprintf (name, namelen, "0x%lx-0x%lx",
5426 entry->cputype, entry->cpusubtype);
5427 abfd->filename = name;
5430 areltdata = bfd_zmalloc (sizeof (struct areltdata));
5431 areltdata->parsed_size = entry->size;
5432 abfd->arelt_data = areltdata;
5433 abfd->iostream = NULL;
5434 abfd->origin = entry->offset;
5438 bfd_mach_o_fat_openr_next_archived_file (bfd *archive, bfd *prev)
5440 mach_o_fat_data_struct *adata;
5441 mach_o_fat_archentry *entry = NULL;
5444 enum bfd_architecture arch_type;
5445 unsigned long arch_subtype;
5447 adata = (mach_o_fat_data_struct *) archive->tdata.mach_o_fat_data;
5448 BFD_ASSERT (adata != NULL);
5450 /* Find index of previous entry. */
5453 /* Start at first one. */
5458 /* Find index of PREV. */
5459 for (i = 0; i < adata->nfat_arch; i++)
5461 if (adata->archentries[i].offset == prev->origin)
5465 if (i == adata->nfat_arch)
5468 bfd_set_error (bfd_error_bad_value);
5472 /* Get next entry. */
5476 if (i >= adata->nfat_arch)
5478 bfd_set_error (bfd_error_no_more_archived_files);
5482 entry = &adata->archentries[i];
5483 nbfd = _bfd_new_bfd_contained_in (archive);
5487 bfd_mach_o_convert_architecture (entry->cputype, entry->cpusubtype,
5488 &arch_type, &arch_subtype);
5490 bfd_mach_o_fat_member_init (nbfd, arch_type, arch_subtype, entry);
5492 bfd_set_arch_mach (nbfd, arch_type, arch_subtype);
5497 /* Analogous to stat call. */
5500 bfd_mach_o_fat_stat_arch_elt (bfd *abfd, struct stat *buf)
5502 if (abfd->arelt_data == NULL)
5504 bfd_set_error (bfd_error_invalid_operation);
5511 buf->st_mode = 0644;
5512 buf->st_size = arelt_size (abfd);
5517 /* If ABFD format is FORMAT and architecture is ARCH, return it.
5518 If ABFD is a fat image containing a member that corresponds to FORMAT
5519 and ARCH, returns it.
5520 In other case, returns NULL.
5521 This function allows transparent uses of fat images. */
5524 bfd_mach_o_fat_extract (bfd *abfd,
5526 const bfd_arch_info_type *arch)
5529 mach_o_fat_data_struct *adata;
5532 if (bfd_check_format (abfd, format))
5534 if (bfd_get_arch_info (abfd) == arch)
5538 if (!bfd_check_format (abfd, bfd_archive)
5539 || abfd->xvec != &mach_o_fat_vec)
5542 /* This is a Mach-O fat image. */
5543 adata = (mach_o_fat_data_struct *) abfd->tdata.mach_o_fat_data;
5544 BFD_ASSERT (adata != NULL);
5546 for (i = 0; i < adata->nfat_arch; i++)
5548 struct mach_o_fat_archentry *e = &adata->archentries[i];
5549 enum bfd_architecture cpu_type;
5550 unsigned long cpu_subtype;
5552 bfd_mach_o_convert_architecture (e->cputype, e->cpusubtype,
5553 &cpu_type, &cpu_subtype);
5554 if (cpu_type != arch->arch || cpu_subtype != arch->mach)
5557 /* The architecture is found. */
5558 res = _bfd_new_bfd_contained_in (abfd);
5562 bfd_mach_o_fat_member_init (res, cpu_type, cpu_subtype, e);
5564 if (bfd_check_format (res, format))
5566 BFD_ASSERT (bfd_get_arch_info (res) == arch);
5577 bfd_mach_o_fat_close_and_cleanup (bfd *abfd)
5579 _bfd_unlink_from_archive_parent (abfd);
5584 bfd_mach_o_lookup_command (bfd *abfd,
5585 bfd_mach_o_load_command_type type,
5586 bfd_mach_o_load_command **mcommand)
5588 struct mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5589 struct bfd_mach_o_load_command *cmd;
5592 BFD_ASSERT (mdata != NULL);
5593 BFD_ASSERT (mcommand != NULL);
5596 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5598 if (cmd->type != type)
5610 bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type type)
5614 case BFD_MACH_O_CPU_TYPE_MC680x0:
5616 case BFD_MACH_O_CPU_TYPE_POWERPC:
5618 case BFD_MACH_O_CPU_TYPE_I386:
5620 case BFD_MACH_O_CPU_TYPE_SPARC:
5622 case BFD_MACH_O_CPU_TYPE_HPPA:
5623 return 0xc0000000 - 0x04000000;
5629 /* The following two tables should be kept, as far as possible, in order of
5630 most frequently used entries to optimize their use from gas. */
5632 const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[] =
5634 { "regular", BFD_MACH_O_S_REGULAR},
5635 { "coalesced", BFD_MACH_O_S_COALESCED},
5636 { "zerofill", BFD_MACH_O_S_ZEROFILL},
5637 { "cstring_literals", BFD_MACH_O_S_CSTRING_LITERALS},
5638 { "4byte_literals", BFD_MACH_O_S_4BYTE_LITERALS},
5639 { "8byte_literals", BFD_MACH_O_S_8BYTE_LITERALS},
5640 { "16byte_literals", BFD_MACH_O_S_16BYTE_LITERALS},
5641 { "literal_pointers", BFD_MACH_O_S_LITERAL_POINTERS},
5642 { "mod_init_func_pointers", BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS},
5643 { "mod_fini_func_pointers", BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS},
5644 { "gb_zerofill", BFD_MACH_O_S_GB_ZEROFILL},
5645 { "interposing", BFD_MACH_O_S_INTERPOSING},
5646 { "dtrace_dof", BFD_MACH_O_S_DTRACE_DOF},
5647 { "non_lazy_symbol_pointers", BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS},
5648 { "lazy_symbol_pointers", BFD_MACH_O_S_LAZY_SYMBOL_POINTERS},
5649 { "symbol_stubs", BFD_MACH_O_S_SYMBOL_STUBS},
5650 { "lazy_dylib_symbol_pointers", BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS},
5654 const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[] =
5656 { "pure_instructions", BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS },
5657 { "some_instructions", BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS },
5658 { "loc_reloc", BFD_MACH_O_S_ATTR_LOC_RELOC },
5659 { "ext_reloc", BFD_MACH_O_S_ATTR_EXT_RELOC },
5660 { "debug", BFD_MACH_O_S_ATTR_DEBUG },
5661 { "live_support", BFD_MACH_O_S_ATTR_LIVE_SUPPORT },
5662 { "no_dead_strip", BFD_MACH_O_S_ATTR_NO_DEAD_STRIP },
5663 { "strip_static_syms", BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS },
5664 { "no_toc", BFD_MACH_O_S_ATTR_NO_TOC },
5665 { "self_modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5666 { "modifying_code", BFD_MACH_O_S_SELF_MODIFYING_CODE },
5670 /* Get the section type from NAME. Return 256 if NAME is unknown. */
5673 bfd_mach_o_get_section_type_from_name (bfd *abfd, const char *name)
5675 const bfd_mach_o_xlat_name *x;
5676 bfd_mach_o_backend_data *bed = bfd_mach_o_get_backend_data (abfd);
5678 for (x = bfd_mach_o_section_type_name; x->name; x++)
5679 if (strcmp (x->name, name) == 0)
5681 /* We found it... does the target support it? */
5682 if (bed->bfd_mach_o_section_type_valid_for_target == NULL
5683 || bed->bfd_mach_o_section_type_valid_for_target (x->val))
5684 return x->val; /* OK. */
5686 break; /* Not supported. */
5688 /* Maximum section ID = 0xff. */
5692 /* Get the section attribute from NAME. Return -1 if NAME is unknown. */
5695 bfd_mach_o_get_section_attribute_from_name (const char *name)
5697 const bfd_mach_o_xlat_name *x;
5699 for (x = bfd_mach_o_section_attribute_name; x->name; x++)
5700 if (strcmp (x->name, name) == 0)
5702 return (unsigned int)-1;
5706 bfd_mach_o_core_fetch_environment (bfd *abfd,
5707 unsigned char **rbuf,
5710 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5711 unsigned long stackaddr = bfd_mach_o_stack_addr (mdata->header.cputype);
5712 bfd_mach_o_load_command *cmd;
5714 for (cmd = mdata->first_command; cmd != NULL; cmd = cmd->next)
5716 bfd_mach_o_segment_command *seg;
5718 if (cmd->type != BFD_MACH_O_LC_SEGMENT)
5721 seg = &cmd->command.segment;
5723 if ((seg->vmaddr + seg->vmsize) == stackaddr)
5725 unsigned long start = seg->fileoff;
5726 unsigned long end = seg->fileoff + seg->filesize;
5727 unsigned char *buf = bfd_malloc (1024);
5728 unsigned long size = 1024;
5732 bfd_size_type nread = 0;
5733 unsigned long offset;
5734 int found_nonnull = 0;
5736 if (size > (end - start))
5737 size = (end - start);
5739 buf = bfd_realloc_or_free (buf, size);
5743 if (bfd_seek (abfd, end - size, SEEK_SET) != 0)
5749 nread = bfd_bread (buf, size, abfd);
5757 for (offset = 4; offset <= size; offset += 4)
5761 val = *((unsigned long *) (buf + size - offset));
5762 if (! found_nonnull)
5767 else if (val == 0x0)
5769 unsigned long bottom;
5772 bottom = seg->fileoff + seg->filesize - offset;
5773 top = seg->fileoff + seg->filesize - 4;
5774 *rbuf = bfd_malloc (top - bottom);
5775 *rlen = top - bottom;
5777 memcpy (*rbuf, buf + size - *rlen, *rlen);
5783 if (size == (end - start))
5797 bfd_mach_o_core_file_failing_command (bfd *abfd)
5799 unsigned char *buf = NULL;
5800 unsigned int len = 0;
5803 ret = bfd_mach_o_core_fetch_environment (abfd, &buf, &len);
5807 return (char *) buf;
5811 bfd_mach_o_core_file_failing_signal (bfd *abfd ATTRIBUTE_UNUSED)
5816 static bfd_mach_o_uuid_command *
5817 bfd_mach_o_lookup_uuid_command (bfd *abfd)
5819 bfd_mach_o_load_command *uuid_cmd = NULL;
5820 int ncmd = bfd_mach_o_lookup_command (abfd, BFD_MACH_O_LC_UUID, &uuid_cmd);
5821 if (ncmd != 1 || uuid_cmd == NULL)
5823 return &uuid_cmd->command.uuid;
5826 /* Return true if ABFD is a dSYM file and its UUID matches UUID_CMD. */
5829 bfd_mach_o_dsym_for_uuid_p (bfd *abfd, const bfd_mach_o_uuid_command *uuid_cmd)
5831 bfd_mach_o_uuid_command *dsym_uuid_cmd;
5834 BFD_ASSERT (uuid_cmd);
5836 if (!bfd_check_format (abfd, bfd_object))
5839 if (bfd_get_flavour (abfd) != bfd_target_mach_o_flavour
5840 || bfd_mach_o_get_data (abfd) == NULL
5841 || bfd_mach_o_get_data (abfd)->header.filetype != BFD_MACH_O_MH_DSYM)
5844 dsym_uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5845 if (dsym_uuid_cmd == NULL)
5848 if (memcmp (uuid_cmd->uuid, dsym_uuid_cmd->uuid,
5849 sizeof (uuid_cmd->uuid)) != 0)
5855 /* Find a BFD in DSYM_FILENAME which matches ARCH and UUID_CMD.
5856 The caller is responsible for closing the returned BFD object and
5857 its my_archive if the returned BFD is in a fat dSYM. */
5860 bfd_mach_o_find_dsym (const char *dsym_filename,
5861 const bfd_mach_o_uuid_command *uuid_cmd,
5862 const bfd_arch_info_type *arch)
5864 bfd *base_dsym_bfd, *dsym_bfd;
5866 BFD_ASSERT (uuid_cmd);
5868 base_dsym_bfd = bfd_openr (dsym_filename, NULL);
5869 if (base_dsym_bfd == NULL)
5872 dsym_bfd = bfd_mach_o_fat_extract (base_dsym_bfd, bfd_object, arch);
5873 if (bfd_mach_o_dsym_for_uuid_p (dsym_bfd, uuid_cmd))
5876 bfd_close (dsym_bfd);
5877 if (base_dsym_bfd != dsym_bfd)
5878 bfd_close (base_dsym_bfd);
5883 /* Return a BFD created from a dSYM file for ABFD.
5884 The caller is responsible for closing the returned BFD object, its
5885 filename, and its my_archive if the returned BFD is in a fat dSYM. */
5888 bfd_mach_o_follow_dsym (bfd *abfd)
5890 char *dsym_filename;
5891 bfd_mach_o_uuid_command *uuid_cmd;
5892 bfd *dsym_bfd, *base_bfd = abfd;
5893 const char *base_basename;
5895 if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_mach_o_flavour)
5898 if (abfd->my_archive && !bfd_is_thin_archive (abfd->my_archive))
5899 base_bfd = abfd->my_archive;
5900 /* BFD may have been opened from a stream. */
5901 if (base_bfd->filename == NULL)
5903 bfd_set_error (bfd_error_invalid_operation);
5906 base_basename = lbasename (base_bfd->filename);
5908 uuid_cmd = bfd_mach_o_lookup_uuid_command (abfd);
5909 if (uuid_cmd == NULL)
5912 /* TODO: We assume the DWARF file has the same as the binary's.
5913 It seems apple's GDB checks all files in the dSYM bundle directory.
5914 http://opensource.apple.com/source/gdb/gdb-1708/src/gdb/macosx/macosx-tdep.c
5916 dsym_filename = (char *)bfd_malloc (strlen (base_bfd->filename)
5917 + strlen (dsym_subdir) + 1
5918 + strlen (base_basename) + 1);
5919 sprintf (dsym_filename, "%s%s/%s",
5920 base_bfd->filename, dsym_subdir, base_basename);
5922 dsym_bfd = bfd_mach_o_find_dsym (dsym_filename, uuid_cmd,
5923 bfd_get_arch_info (abfd));
5924 if (dsym_bfd == NULL)
5925 free (dsym_filename);
5931 bfd_mach_o_find_nearest_line (bfd *abfd,
5935 const char **filename_ptr,
5936 const char **functionname_ptr,
5937 unsigned int *line_ptr,
5938 unsigned int *discriminator_ptr)
5940 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5943 switch (mdata->header.filetype)
5945 case BFD_MACH_O_MH_OBJECT:
5947 case BFD_MACH_O_MH_EXECUTE:
5948 case BFD_MACH_O_MH_DYLIB:
5949 case BFD_MACH_O_MH_BUNDLE:
5950 case BFD_MACH_O_MH_KEXT_BUNDLE:
5951 if (mdata->dwarf2_find_line_info == NULL)
5953 mdata->dsym_bfd = bfd_mach_o_follow_dsym (abfd);
5954 /* When we couldn't find dSYM for this binary, we look for
5955 the debug information in the binary itself. In this way,
5956 we won't try finding separated dSYM again because
5957 mdata->dwarf2_find_line_info will be filled. */
5958 if (! mdata->dsym_bfd)
5960 if (! _bfd_dwarf2_slurp_debug_info (abfd, mdata->dsym_bfd,
5961 dwarf_debug_sections, symbols,
5962 &mdata->dwarf2_find_line_info,
5970 return _bfd_dwarf2_find_nearest_line (abfd, symbols, NULL, section, offset,
5971 filename_ptr, functionname_ptr,
5972 line_ptr, discriminator_ptr,
5973 dwarf_debug_sections, 0,
5974 &mdata->dwarf2_find_line_info);
5978 bfd_mach_o_close_and_cleanup (bfd *abfd)
5980 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
5981 if (bfd_get_format (abfd) == bfd_object && mdata != NULL)
5983 _bfd_dwarf2_cleanup_debug_info (abfd, &mdata->dwarf2_find_line_info);
5984 bfd_mach_o_free_cached_info (abfd);
5985 if (mdata->dsym_bfd != NULL)
5987 bfd *fat_bfd = mdata->dsym_bfd->my_archive;
5989 /* FIXME: PR 19435: This calculation to find the memory allocated by
5990 bfd_mach_o_follow_dsym for the filename does not always end up
5991 selecting the correct pointer. Unfortunately this problem is
5992 very hard to reproduce on a non Mach-O native system, so until it
5993 can be traced and fixed on such a system, this code will remain
5994 commented out. This does mean that there will be a memory leak,
5995 but it is small, and happens when we are closing down, so it
5996 should not matter too much. */
5997 char *dsym_filename = (char *)(fat_bfd
5999 : mdata->dsym_bfd->filename);
6001 bfd_close (mdata->dsym_bfd);
6002 mdata->dsym_bfd = NULL;
6004 bfd_close (fat_bfd);
6006 free (dsym_filename);
6011 return _bfd_generic_close_and_cleanup (abfd);
6015 bfd_mach_o_free_cached_info (bfd *abfd)
6017 bfd_mach_o_data_struct *mdata = bfd_mach_o_get_data (abfd);
6019 free (mdata->dyn_reloc_cache);
6020 mdata->dyn_reloc_cache = NULL;
6021 for (asect = abfd->sections; asect != NULL; asect = asect->next)
6023 free (asect->relocation);
6024 asect->relocation = NULL;
6030 #define bfd_mach_o_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
6031 #define bfd_mach_o_bfd_reloc_name_lookup _bfd_norelocs_bfd_reloc_name_lookup
6033 #define bfd_mach_o_canonicalize_one_reloc NULL
6034 #define bfd_mach_o_swap_reloc_out NULL
6035 #define bfd_mach_o_print_thread NULL
6036 #define bfd_mach_o_tgt_seg_table NULL
6037 #define bfd_mach_o_section_type_valid_for_tgt NULL
6039 #define TARGET_NAME mach_o_be_vec
6040 #define TARGET_STRING "mach-o-be"
6041 #define TARGET_ARCHITECTURE bfd_arch_unknown
6042 #define TARGET_PAGESIZE 1
6043 #define TARGET_BIG_ENDIAN 1
6044 #define TARGET_ARCHIVE 0
6045 #define TARGET_PRIORITY 1
6046 #include "mach-o-target.c"
6049 #undef TARGET_STRING
6050 #undef TARGET_ARCHITECTURE
6051 #undef TARGET_PAGESIZE
6052 #undef TARGET_BIG_ENDIAN
6053 #undef TARGET_ARCHIVE
6054 #undef TARGET_PRIORITY
6056 #define TARGET_NAME mach_o_le_vec
6057 #define TARGET_STRING "mach-o-le"
6058 #define TARGET_ARCHITECTURE bfd_arch_unknown
6059 #define TARGET_PAGESIZE 1
6060 #define TARGET_BIG_ENDIAN 0
6061 #define TARGET_ARCHIVE 0
6062 #define TARGET_PRIORITY 1
6064 #include "mach-o-target.c"
6067 #undef TARGET_STRING
6068 #undef TARGET_ARCHITECTURE
6069 #undef TARGET_PAGESIZE
6070 #undef TARGET_BIG_ENDIAN
6071 #undef TARGET_ARCHIVE
6072 #undef TARGET_PRIORITY
6074 /* Not yet handled: creating an archive. */
6075 #define bfd_mach_o_mkarchive _bfd_noarchive_mkarchive
6077 #define bfd_mach_o_close_and_cleanup bfd_mach_o_fat_close_and_cleanup
6080 #define bfd_mach_o_generic_stat_arch_elt bfd_mach_o_fat_stat_arch_elt
6081 #define bfd_mach_o_openr_next_archived_file bfd_mach_o_fat_openr_next_archived_file
6082 #define bfd_mach_o_archive_p bfd_mach_o_fat_archive_p
6084 #define TARGET_NAME mach_o_fat_vec
6085 #define TARGET_STRING "mach-o-fat"
6086 #define TARGET_ARCHITECTURE bfd_arch_unknown
6087 #define TARGET_PAGESIZE 1
6088 #define TARGET_BIG_ENDIAN 1
6089 #define TARGET_ARCHIVE 1
6090 #define TARGET_PRIORITY 0
6092 #include "mach-o-target.c"
6095 #undef TARGET_STRING
6096 #undef TARGET_ARCHITECTURE
6097 #undef TARGET_PAGESIZE
6098 #undef TARGET_BIG_ENDIAN
6099 #undef TARGET_ARCHIVE
6100 #undef TARGET_PRIORITY