Commit | Line | Data |
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3af9a47b | 1 | /* Mach-O support for BFD. |
7f307238 | 2 | Copyright 1999, 2000, 2001, 2002, 2003, 2005, 2007, 2008, 2009, 2011, |
fc55a902 TG |
3 | 2012 |
4 | Free Software Foundation, Inc. | |
3af9a47b NC |
5 | |
6 | This file is part of BFD, the Binary File Descriptor library. | |
7 | ||
8 | This program is free software; you can redistribute it and/or modify | |
9 | it under the terms of the GNU General Public License as published by | |
cd123cb7 | 10 | the Free Software Foundation; either version 3 of the License, or |
3af9a47b NC |
11 | (at your option) any later version. |
12 | ||
13 | This program is distributed in the hope that it will be useful, | |
14 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | GNU General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
e84d6fca | 19 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
20 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
21 | MA 02110-1301, USA. */ | |
3af9a47b NC |
22 | |
23 | #ifndef _BFD_MACH_O_H_ | |
24 | #define _BFD_MACH_O_H_ | |
25 | ||
26 | #include "bfd.h" | |
74f26653 | 27 | #include "mach-o/loader.h" |
15e1c58a | 28 | |
3af9a47b NC |
29 | typedef struct bfd_mach_o_header |
30 | { | |
31 | unsigned long magic; | |
32 | unsigned long cputype; | |
33 | unsigned long cpusubtype; | |
34 | unsigned long filetype; | |
35 | unsigned long ncmds; | |
36 | unsigned long sizeofcmds; | |
37 | unsigned long flags; | |
1e8a024a TG |
38 | unsigned int reserved; |
39 | /* Version 1: 32 bits, version 2: 64 bits. */ | |
40 | unsigned int version; | |
3af9a47b NC |
41 | enum bfd_endian byteorder; |
42 | } | |
43 | bfd_mach_o_header; | |
44 | ||
f1bde64c TG |
45 | #define BFD_MACH_O_SEGNAME_SIZE 16 |
46 | #define BFD_MACH_O_SECTNAME_SIZE 16 | |
47 | ||
3af9a47b NC |
48 | typedef struct bfd_mach_o_section |
49 | { | |
53d58d96 | 50 | /* Fields present in the file. */ |
f1bde64c TG |
51 | char sectname[BFD_MACH_O_SECTNAME_SIZE + 1]; /* Always NUL padded. */ |
52 | char segname[BFD_MACH_O_SEGNAME_SIZE + 1]; | |
3af9a47b NC |
53 | bfd_vma addr; |
54 | bfd_vma size; | |
55 | bfd_vma offset; | |
56 | unsigned long align; | |
57 | bfd_vma reloff; | |
58 | unsigned long nreloc; | |
59 | unsigned long flags; | |
60 | unsigned long reserved1; | |
61 | unsigned long reserved2; | |
1e8a024a | 62 | unsigned long reserved3; |
53d58d96 TG |
63 | |
64 | /* Corresponding bfd section. */ | |
65 | asection *bfdsection; | |
f1bde64c TG |
66 | |
67 | /* Simply linked list. */ | |
68 | struct bfd_mach_o_section *next; | |
3af9a47b NC |
69 | } |
70 | bfd_mach_o_section; | |
71 | ||
72 | typedef struct bfd_mach_o_segment_command | |
73 | { | |
a4551119 | 74 | char segname[BFD_MACH_O_SEGNAME_SIZE + 1]; |
3af9a47b NC |
75 | bfd_vma vmaddr; |
76 | bfd_vma vmsize; | |
77 | bfd_vma fileoff; | |
78 | unsigned long filesize; | |
15e1c58a TG |
79 | unsigned long maxprot; /* Maximum permitted protection. */ |
80 | unsigned long initprot; /* Initial protection. */ | |
3af9a47b NC |
81 | unsigned long nsects; |
82 | unsigned long flags; | |
f1bde64c TG |
83 | |
84 | /* Linked list of sections. */ | |
85 | bfd_mach_o_section *sect_head; | |
86 | bfd_mach_o_section *sect_tail; | |
3af9a47b NC |
87 | } |
88 | bfd_mach_o_segment_command; | |
89 | ||
15e1c58a TG |
90 | /* Protection flags. */ |
91 | #define BFD_MACH_O_PROT_READ 0x01 | |
92 | #define BFD_MACH_O_PROT_WRITE 0x02 | |
93 | #define BFD_MACH_O_PROT_EXECUTE 0x04 | |
94 | ||
92bc0e80 TG |
95 | /* Expanded internal representation of a relocation entry. */ |
96 | typedef struct bfd_mach_o_reloc_info | |
97 | { | |
98 | bfd_vma r_address; | |
99 | bfd_vma r_value; | |
100 | unsigned int r_scattered : 1; | |
101 | unsigned int r_type : 4; | |
102 | unsigned int r_pcrel : 1; | |
103 | unsigned int r_length : 2; | |
104 | unsigned int r_extern : 1; | |
105 | } | |
106 | bfd_mach_o_reloc_info; | |
107 | ||
108 | typedef struct bfd_mach_o_asymbol | |
109 | { | |
110 | /* The actual symbol which the rest of BFD works with. */ | |
111 | asymbol symbol; | |
112 | ||
7f307238 | 113 | /* Mach-O symbol fields. */ |
92bc0e80 TG |
114 | unsigned char n_type; |
115 | unsigned char n_sect; | |
116 | unsigned short n_desc; | |
117 | } | |
118 | bfd_mach_o_asymbol; | |
119 | ||
7f307238 IS |
120 | /* The symbol table is sorted like this: |
121 | (1) local. | |
122 | (otherwise in order of generation) | |
123 | (2) external defined | |
124 | (sorted by name) | |
125 | (3) external undefined | |
126 | (sorted by name) | |
127 | (4) common | |
128 | (sorted by name) | |
129 | */ | |
130 | ||
3af9a47b NC |
131 | typedef struct bfd_mach_o_symtab_command |
132 | { | |
92bc0e80 TG |
133 | unsigned int symoff; |
134 | unsigned int nsyms; | |
135 | unsigned int stroff; | |
136 | unsigned int strsize; | |
137 | bfd_mach_o_asymbol *symbols; | |
3af9a47b | 138 | char *strtab; |
3af9a47b NC |
139 | } |
140 | bfd_mach_o_symtab_command; | |
141 | ||
142 | /* This is the second set of the symbolic information which is used to support | |
7dee875e | 143 | the data structures for the dynamically link editor. |
e84d6fca | 144 | |
3af9a47b NC |
145 | The original set of symbolic information in the symtab_command which contains |
146 | the symbol and string tables must also be present when this load command is | |
147 | present. When this load command is present the symbol table is organized | |
148 | into three groups of symbols: | |
149 | local symbols (static and debugging symbols) - grouped by module | |
150 | defined external symbols - grouped by module (sorted by name if not lib) | |
151 | undefined external symbols (sorted by name) | |
152 | In this load command there are offsets and counts to each of the three groups | |
153 | of symbols. | |
e84d6fca | 154 | |
3af9a47b NC |
155 | This load command contains a the offsets and sizes of the following new |
156 | symbolic information tables: | |
157 | table of contents | |
158 | module table | |
159 | reference symbol table | |
160 | indirect symbol table | |
161 | The first three tables above (the table of contents, module table and | |
7dee875e | 162 | reference symbol table) are only present if the file is a dynamically linked |
3af9a47b NC |
163 | shared library. For executable and object modules, which are files |
164 | containing only one module, the information that would be in these three | |
165 | tables is determined as follows: | |
166 | table of contents - the defined external symbols are sorted by name | |
167 | module table - the file contains only one module so everything in the | |
168 | file is part of the module. | |
169 | reference symbol table - is the defined and undefined external symbols | |
e84d6fca | 170 | |
7dee875e | 171 | For dynamically linked shared library files this load command also contains |
3af9a47b NC |
172 | offsets and sizes to the pool of relocation entries for all sections |
173 | separated into two groups: | |
174 | external relocation entries | |
175 | local relocation entries | |
176 | For executable and object modules the relocation entries continue to hang | |
177 | off the section structures. */ | |
178 | ||
046b007d TG |
179 | typedef struct bfd_mach_o_dylib_module |
180 | { | |
181 | /* Index into the string table indicating the name of the module. */ | |
182 | unsigned long module_name_idx; | |
183 | char *module_name; | |
184 | ||
185 | /* Index into the symbol table of the first defined external symbol provided | |
186 | by the module. */ | |
187 | unsigned long iextdefsym; | |
188 | ||
189 | /* Number of external symbols provided by this module. */ | |
190 | unsigned long nextdefsym; | |
191 | ||
192 | /* Index into the external reference table of the first entry | |
193 | provided by this module. */ | |
194 | unsigned long irefsym; | |
195 | ||
196 | /* Number of external reference entries provided by this module. */ | |
197 | unsigned long nrefsym; | |
198 | ||
199 | /* Index into the symbol table of the first local symbol provided by this | |
200 | module. */ | |
201 | unsigned long ilocalsym; | |
202 | ||
203 | /* Number of local symbols provided by this module. */ | |
204 | unsigned long nlocalsym; | |
205 | ||
206 | /* Index into the external relocation table of the first entry provided | |
207 | by this module. */ | |
208 | unsigned long iextrel; | |
209 | ||
210 | /* Number of external relocation entries provided by this module. */ | |
211 | unsigned long nextrel; | |
212 | ||
213 | /* Index in the module initialization section to the pointers for this | |
214 | module. */ | |
215 | unsigned short iinit; | |
216 | ||
217 | /* Index in the module termination section to the pointers for this | |
218 | module. */ | |
219 | unsigned short iterm; | |
220 | ||
221 | /* Number of pointers in the module initialization for this module. */ | |
222 | unsigned short ninit; | |
223 | ||
224 | /* Number of pointers in the module termination for this module. */ | |
225 | unsigned short nterm; | |
226 | ||
227 | /* Number of data byte for this module that are used in the __module_info | |
228 | section of the __OBJC segment. */ | |
229 | unsigned long objc_module_info_size; | |
230 | ||
231 | /* Statically linked address of the start of the data for this module | |
232 | in the __module_info section of the __OBJC_segment. */ | |
233 | bfd_vma objc_module_info_addr; | |
234 | } | |
235 | bfd_mach_o_dylib_module; | |
046b007d TG |
236 | |
237 | typedef struct bfd_mach_o_dylib_table_of_content | |
238 | { | |
239 | /* Index into the symbol table to the defined external symbol. */ | |
240 | unsigned long symbol_index; | |
241 | ||
242 | /* Index into the module table to the module for this entry. */ | |
243 | unsigned long module_index; | |
244 | } | |
245 | bfd_mach_o_dylib_table_of_content; | |
046b007d TG |
246 | |
247 | typedef struct bfd_mach_o_dylib_reference | |
248 | { | |
249 | /* Index into the symbol table for the symbol being referenced. */ | |
250 | unsigned long isym; | |
251 | ||
252 | /* Type of the reference being made (use REFERENCE_FLAGS constants). */ | |
253 | unsigned long flags; | |
254 | } | |
255 | bfd_mach_o_dylib_reference; | |
256 | #define BFD_MACH_O_REFERENCE_SIZE 4 | |
257 | ||
3af9a47b NC |
258 | typedef struct bfd_mach_o_dysymtab_command |
259 | { | |
260 | /* The symbols indicated by symoff and nsyms of the LC_SYMTAB load command | |
261 | are grouped into the following three groups: | |
262 | local symbols (further grouped by the module they are from) | |
263 | defined external symbols (further grouped by the module they are from) | |
264 | undefined symbols | |
e84d6fca | 265 | |
3af9a47b NC |
266 | The local symbols are used only for debugging. The dynamic binding |
267 | process may have to use them to indicate to the debugger the local | |
268 | symbols for a module that is being bound. | |
e84d6fca | 269 | |
3af9a47b NC |
270 | The last two groups are used by the dynamic binding process to do the |
271 | binding (indirectly through the module table and the reference symbol | |
7dee875e | 272 | table when this is a dynamically linked shared library file). */ |
3af9a47b NC |
273 | |
274 | unsigned long ilocalsym; /* Index to local symbols. */ | |
275 | unsigned long nlocalsym; /* Number of local symbols. */ | |
276 | unsigned long iextdefsym; /* Index to externally defined symbols. */ | |
277 | unsigned long nextdefsym; /* Number of externally defined symbols. */ | |
278 | unsigned long iundefsym; /* Index to undefined symbols. */ | |
279 | unsigned long nundefsym; /* Number of undefined symbols. */ | |
280 | ||
281 | /* For the for the dynamic binding process to find which module a symbol | |
282 | is defined in the table of contents is used (analogous to the ranlib | |
283 | structure in an archive) which maps defined external symbols to modules | |
7dee875e | 284 | they are defined in. This exists only in a dynamically linked shared |
3af9a47b NC |
285 | library file. For executable and object modules the defined external |
286 | symbols are sorted by name and is use as the table of contents. */ | |
287 | ||
288 | unsigned long tocoff; /* File offset to table of contents. */ | |
289 | unsigned long ntoc; /* Number of entries in table of contents. */ | |
290 | ||
291 | /* To support dynamic binding of "modules" (whole object files) the symbol | |
292 | table must reflect the modules that the file was created from. This is | |
293 | done by having a module table that has indexes and counts into the merged | |
294 | tables for each module. The module structure that these two entries | |
7dee875e | 295 | refer to is described below. This exists only in a dynamically linked |
3af9a47b NC |
296 | shared library file. For executable and object modules the file only |
297 | contains one module so everything in the file belongs to the module. */ | |
298 | ||
299 | unsigned long modtaboff; /* File offset to module table. */ | |
300 | unsigned long nmodtab; /* Number of module table entries. */ | |
301 | ||
302 | /* To support dynamic module binding the module structure for each module | |
303 | indicates the external references (defined and undefined) each module | |
304 | makes. For each module there is an offset and a count into the | |
305 | reference symbol table for the symbols that the module references. | |
7dee875e | 306 | This exists only in a dynamically linked shared library file. For |
3af9a47b NC |
307 | executable and object modules the defined external symbols and the |
308 | undefined external symbols indicates the external references. */ | |
309 | ||
310 | unsigned long extrefsymoff; /* Offset to referenced symbol table. */ | |
311 | unsigned long nextrefsyms; /* Number of referenced symbol table entries. */ | |
312 | ||
313 | /* The sections that contain "symbol pointers" and "routine stubs" have | |
314 | indexes and (implied counts based on the size of the section and fixed | |
315 | size of the entry) into the "indirect symbol" table for each pointer | |
316 | and stub. For every section of these two types the index into the | |
317 | indirect symbol table is stored in the section header in the field | |
318 | reserved1. An indirect symbol table entry is simply a 32bit index into | |
319 | the symbol table to the symbol that the pointer or stub is referring to. | |
320 | The indirect symbol table is ordered to match the entries in the section. */ | |
321 | ||
322 | unsigned long indirectsymoff; /* File offset to the indirect symbol table. */ | |
323 | unsigned long nindirectsyms; /* Number of indirect symbol table entries. */ | |
324 | ||
325 | /* To support relocating an individual module in a library file quickly the | |
326 | external relocation entries for each module in the library need to be | |
327 | accessed efficiently. Since the relocation entries can't be accessed | |
328 | through the section headers for a library file they are separated into | |
329 | groups of local and external entries further grouped by module. In this | |
330 | case the presents of this load command who's extreloff, nextrel, | |
331 | locreloff and nlocrel fields are non-zero indicates that the relocation | |
332 | entries of non-merged sections are not referenced through the section | |
333 | structures (and the reloff and nreloc fields in the section headers are | |
334 | set to zero). | |
335 | ||
336 | Since the relocation entries are not accessed through the section headers | |
337 | this requires the r_address field to be something other than a section | |
338 | offset to identify the item to be relocated. In this case r_address is | |
339 | set to the offset from the vmaddr of the first LC_SEGMENT command. | |
340 | ||
341 | The relocation entries are grouped by module and the module table | |
342 | entries have indexes and counts into them for the group of external | |
343 | relocation entries for that the module. | |
344 | ||
345 | For sections that are merged across modules there must not be any | |
346 | remaining external relocation entries for them (for merged sections | |
347 | remaining relocation entries must be local). */ | |
348 | ||
349 | unsigned long extreloff; /* Offset to external relocation entries. */ | |
350 | unsigned long nextrel; /* Number of external relocation entries. */ | |
351 | ||
352 | /* All the local relocation entries are grouped together (they are not | |
353 | grouped by their module since they are only used if the object is moved | |
7dee875e | 354 | from it statically link edited address). */ |
3af9a47b NC |
355 | |
356 | unsigned long locreloff; /* Offset to local relocation entries. */ | |
357 | unsigned long nlocrel; /* Number of local relocation entries. */ | |
046b007d TG |
358 | |
359 | bfd_mach_o_dylib_module *dylib_module; | |
360 | bfd_mach_o_dylib_table_of_content *dylib_toc; | |
361 | unsigned int *indirect_syms; | |
362 | bfd_mach_o_dylib_reference *ext_refs; | |
3af9a47b | 363 | } |
e84d6fca | 364 | bfd_mach_o_dysymtab_command; |
3af9a47b | 365 | |
e84d6fca | 366 | /* An indirect symbol table entry is simply a 32bit index into the symbol table |
3af9a47b | 367 | to the symbol that the pointer or stub is refering to. Unless it is for a |
046b007d | 368 | non-lazy symbol pointer section for a defined symbol which strip(1) has |
3af9a47b NC |
369 | removed. In which case it has the value INDIRECT_SYMBOL_LOCAL. If the |
370 | symbol was also absolute INDIRECT_SYMBOL_ABS is or'ed with that. */ | |
371 | ||
15e1c58a TG |
372 | #define BFD_MACH_O_INDIRECT_SYMBOL_LOCAL 0x80000000 |
373 | #define BFD_MACH_O_INDIRECT_SYMBOL_ABS 0x40000000 | |
046b007d | 374 | #define BFD_MACH_O_INDIRECT_SYMBOL_SIZE 4 |
3af9a47b | 375 | |
b32e07d7 TG |
376 | /* For LC_THREAD or LC_UNIXTHREAD. */ |
377 | ||
3af9a47b NC |
378 | typedef struct bfd_mach_o_thread_flavour |
379 | { | |
380 | unsigned long flavour; | |
b32e07d7 | 381 | unsigned long offset; |
3af9a47b NC |
382 | unsigned long size; |
383 | } | |
384 | bfd_mach_o_thread_flavour; | |
385 | ||
386 | typedef struct bfd_mach_o_thread_command | |
387 | { | |
388 | unsigned long nflavours; | |
e84d6fca | 389 | bfd_mach_o_thread_flavour *flavours; |
3af9a47b NC |
390 | asection *section; |
391 | } | |
392 | bfd_mach_o_thread_command; | |
393 | ||
046b007d TG |
394 | /* For LC_LOAD_DYLINKER and LC_ID_DYLINKER. */ |
395 | ||
3af9a47b NC |
396 | typedef struct bfd_mach_o_dylinker_command |
397 | { | |
846b9259 TG |
398 | unsigned long name_offset; /* Offset to library's path name. */ |
399 | unsigned long name_len; /* Offset to library's path name. */ | |
b32e07d7 | 400 | char *name_str; |
3af9a47b NC |
401 | } |
402 | bfd_mach_o_dylinker_command; | |
403 | ||
046b007d TG |
404 | /* For LC_LOAD_DYLIB, LC_LOAD_WEAK_DYLIB, LC_ID_DYLIB |
405 | or LC_REEXPORT_DYLIB. */ | |
406 | ||
3af9a47b NC |
407 | typedef struct bfd_mach_o_dylib_command |
408 | { | |
3af9a47b NC |
409 | unsigned long name_offset; /* Offset to library's path name. */ |
410 | unsigned long name_len; /* Offset to library's path name. */ | |
411 | unsigned long timestamp; /* Library's build time stamp. */ | |
412 | unsigned long current_version; /* Library's current version number. */ | |
413 | unsigned long compatibility_version; /* Library's compatibility vers number. */ | |
b32e07d7 | 414 | char *name_str; |
3af9a47b NC |
415 | } |
416 | bfd_mach_o_dylib_command; | |
417 | ||
046b007d TG |
418 | /* For LC_PREBOUND_DYLIB. */ |
419 | ||
3af9a47b NC |
420 | typedef struct bfd_mach_o_prebound_dylib_command |
421 | { | |
3af9a47b NC |
422 | unsigned long name; /* Library's path name. */ |
423 | unsigned long nmodules; /* Number of modules in library. */ | |
424 | unsigned long linked_modules; /* Bit vector of linked modules. */ | |
3af9a47b NC |
425 | } |
426 | bfd_mach_o_prebound_dylib_command; | |
427 | ||
046b007d TG |
428 | /* For LC_UUID. */ |
429 | ||
15e1c58a TG |
430 | typedef struct bfd_mach_o_uuid_command |
431 | { | |
046b007d | 432 | unsigned char uuid[16]; |
15e1c58a TG |
433 | } |
434 | bfd_mach_o_uuid_command; | |
435 | ||
046b007d TG |
436 | /* For LC_CODE_SIGNATURE or LC_SEGMENT_SPLIT_INFO. */ |
437 | ||
438 | typedef struct bfd_mach_o_linkedit_command | |
439 | { | |
440 | unsigned long dataoff; | |
441 | unsigned long datasize; | |
442 | } | |
443 | bfd_mach_o_linkedit_command; | |
444 | ||
445 | typedef struct bfd_mach_o_str_command | |
446 | { | |
447 | unsigned long stroff; | |
448 | unsigned long str_len; | |
449 | char *str; | |
450 | } | |
451 | bfd_mach_o_str_command; | |
452 | ||
9f4a5bd1 TG |
453 | typedef struct bfd_mach_o_fvmlib_command |
454 | { | |
455 | unsigned int name_offset; | |
456 | unsigned int name_len; | |
457 | char *name_str; | |
458 | unsigned int minor_version; | |
459 | unsigned int header_addr; | |
460 | } | |
461 | bfd_mach_o_fvmlib_command; | |
462 | ||
ad86f1fb TG |
463 | typedef struct bfd_mach_o_dyld_info_command |
464 | { | |
465 | /* File offset and size to rebase info. */ | |
466 | unsigned int rebase_off; | |
467 | unsigned int rebase_size; | |
468 | ||
469 | /* File offset and size of binding info. */ | |
470 | unsigned int bind_off; | |
471 | unsigned int bind_size; | |
472 | ||
473 | /* File offset and size of weak binding info. */ | |
474 | unsigned int weak_bind_off; | |
475 | unsigned int weak_bind_size; | |
476 | ||
477 | /* File offset and size of lazy binding info. */ | |
478 | unsigned int lazy_bind_off; | |
479 | unsigned int lazy_bind_size; | |
480 | ||
481 | /* File offset and size of export info. */ | |
482 | unsigned int export_off; | |
483 | unsigned int export_size; | |
484 | } | |
485 | bfd_mach_o_dyld_info_command; | |
486 | ||
edbdea0e TG |
487 | typedef struct bfd_mach_o_version_min_command |
488 | { | |
489 | unsigned char rel; | |
490 | unsigned char maj; | |
491 | unsigned char min; | |
492 | unsigned int reserved; | |
493 | } | |
494 | bfd_mach_o_version_min_command; | |
495 | ||
fc55a902 TG |
496 | typedef struct bfd_mach_o_encryption_info_command |
497 | { | |
498 | unsigned int cryptoff; | |
499 | unsigned int cryptsize; | |
500 | unsigned int cryptid; | |
501 | } | |
502 | bfd_mach_o_encryption_info_command; | |
503 | ||
3af9a47b NC |
504 | typedef struct bfd_mach_o_load_command |
505 | { | |
506 | bfd_mach_o_load_command_type type; | |
154a1ee5 | 507 | bfd_boolean type_required; |
92bc0e80 TG |
508 | unsigned int offset; |
509 | unsigned int len; | |
3af9a47b NC |
510 | union |
511 | { | |
512 | bfd_mach_o_segment_command segment; | |
513 | bfd_mach_o_symtab_command symtab; | |
514 | bfd_mach_o_dysymtab_command dysymtab; | |
515 | bfd_mach_o_thread_command thread; | |
516 | bfd_mach_o_dylib_command dylib; | |
517 | bfd_mach_o_dylinker_command dylinker; | |
518 | bfd_mach_o_prebound_dylib_command prebound_dylib; | |
15e1c58a | 519 | bfd_mach_o_uuid_command uuid; |
046b007d TG |
520 | bfd_mach_o_linkedit_command linkedit; |
521 | bfd_mach_o_str_command str; | |
ad86f1fb | 522 | bfd_mach_o_dyld_info_command dyld_info; |
edbdea0e | 523 | bfd_mach_o_version_min_command version_min; |
fc55a902 | 524 | bfd_mach_o_encryption_info_command encryption_info; |
9f4a5bd1 | 525 | bfd_mach_o_fvmlib_command fvmlib; |
3af9a47b NC |
526 | } |
527 | command; | |
528 | } | |
529 | bfd_mach_o_load_command; | |
530 | ||
531 | typedef struct mach_o_data_struct | |
532 | { | |
92bc0e80 | 533 | /* Mach-O header. */ |
3af9a47b | 534 | bfd_mach_o_header header; |
92bc0e80 | 535 | /* Array of load commands (length is given by header.ncmds). */ |
3af9a47b | 536 | bfd_mach_o_load_command *commands; |
92bc0e80 TG |
537 | |
538 | /* Flatten array of sections. The array is 0-based. */ | |
3af9a47b NC |
539 | unsigned long nsects; |
540 | bfd_mach_o_section **sections; | |
92bc0e80 | 541 | |
7f307238 | 542 | /* Used while writing: current length of the output file. This is used |
92bc0e80 TG |
543 | to allocate space in the file. */ |
544 | ufile_ptr filelen; | |
046b007d TG |
545 | |
546 | /* As symtab is referenced by other load command, it is handy to have | |
edbdea0e | 547 | a direct access to it. Although it is not clearly stated, only one symtab |
046b007d TG |
548 | is expected. */ |
549 | bfd_mach_o_symtab_command *symtab; | |
b32e07d7 | 550 | bfd_mach_o_dysymtab_command *dysymtab; |
d9071b0c | 551 | |
7f307238 IS |
552 | /* Base values used for building the dysymtab for a single-module object. */ |
553 | unsigned long nlocal; | |
554 | unsigned long ndefext; | |
555 | unsigned long nundefext; | |
556 | ||
557 | /* If this is non-zero, then the pointer below is populated. */ | |
558 | unsigned long nindirect; | |
559 | /* A set of synthetic symbols representing the 'indirect' ones in the file. | |
560 | These should be sorted (a) by the section they represent and (b) by the | |
561 | order that they appear within each section. */ | |
562 | asymbol **indirect_syms; | |
563 | ||
d9071b0c TG |
564 | /* A place to stash dwarf2 info for this bfd. */ |
565 | void *dwarf2_find_line_info; | |
dff55db0 | 566 | |
2ca7691a TG |
567 | /* BFD of .dSYM file. */ |
568 | bfd *dsym_bfd; | |
569 | ||
dff55db0 TG |
570 | /* Cache of dynamic relocs. */ |
571 | arelent *dyn_reloc_cache; | |
3af9a47b | 572 | } |
046b007d | 573 | bfd_mach_o_data_struct; |
3af9a47b | 574 | |
c5012cd8 TG |
575 | typedef struct bfd_mach_o_xlat_name |
576 | { | |
577 | const char *name; | |
578 | unsigned long val; | |
579 | } | |
580 | bfd_mach_o_xlat_name; | |
581 | ||
92bc0e80 | 582 | /* Target specific routines. */ |
15e1c58a | 583 | |
046b007d | 584 | #define bfd_mach_o_get_data(abfd) ((abfd)->tdata.mach_o_data) |
92bc0e80 TG |
585 | #define bfd_mach_o_get_backend_data(abfd) \ |
586 | ((bfd_mach_o_backend_data*)(abfd)->xvec->backend_data) | |
3af9a47b | 587 | |
f1bde64c TG |
588 | /* Get the Mach-O header for section SEC. */ |
589 | #define bfd_mach_o_get_mach_o_section(sec) \ | |
590 | ((bfd_mach_o_section *)(sec)->used_by_bfd) | |
591 | ||
154a1ee5 | 592 | bfd_boolean bfd_mach_o_valid (bfd *); |
154a1ee5 TG |
593 | bfd_boolean bfd_mach_o_mkobject_init (bfd *); |
594 | const bfd_target *bfd_mach_o_object_p (bfd *); | |
595 | const bfd_target *bfd_mach_o_core_p (bfd *); | |
596 | const bfd_target *bfd_mach_o_archive_p (bfd *); | |
597 | bfd *bfd_mach_o_openr_next_archived_file (bfd *, bfd *); | |
42fa0891 TG |
598 | bfd_boolean bfd_mach_o_set_arch_mach (bfd *, enum bfd_architecture, |
599 | unsigned long); | |
154a1ee5 | 600 | int bfd_mach_o_lookup_command (bfd *, bfd_mach_o_load_command_type, bfd_mach_o_load_command **); |
f1bde64c | 601 | bfd_boolean bfd_mach_o_new_section_hook (bfd *, asection *); |
154a1ee5 TG |
602 | bfd_boolean bfd_mach_o_write_contents (bfd *); |
603 | bfd_boolean bfd_mach_o_bfd_copy_private_symbol_data (bfd *, asymbol *, | |
604 | bfd *, asymbol *); | |
605 | bfd_boolean bfd_mach_o_bfd_copy_private_section_data (bfd *, asection *, | |
606 | bfd *, asection *); | |
607 | bfd_boolean bfd_mach_o_bfd_copy_private_bfd_data (bfd *, bfd *); | |
0c9ef0f0 | 608 | bfd_boolean bfd_mach_o_bfd_set_private_flags (bfd *, flagword); |
154a1ee5 TG |
609 | long bfd_mach_o_get_symtab_upper_bound (bfd *); |
610 | long bfd_mach_o_canonicalize_symtab (bfd *, asymbol **); | |
b2b62060 TG |
611 | long bfd_mach_o_get_synthetic_symtab (bfd *, long, asymbol **, long, |
612 | asymbol **, asymbol **ret); | |
b32e07d7 TG |
613 | long bfd_mach_o_get_reloc_upper_bound (bfd *, asection *); |
614 | long bfd_mach_o_canonicalize_reloc (bfd *, asection *, arelent **, asymbol **); | |
615 | long bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *); | |
616 | long bfd_mach_o_canonicalize_dynamic_reloc (bfd *, arelent **, asymbol **); | |
154a1ee5 TG |
617 | asymbol *bfd_mach_o_make_empty_symbol (bfd *); |
618 | void bfd_mach_o_get_symbol_info (bfd *, asymbol *, symbol_info *); | |
619 | void bfd_mach_o_print_symbol (bfd *, PTR, asymbol *, bfd_print_symbol_type); | |
154a1ee5 TG |
620 | int bfd_mach_o_sizeof_headers (bfd *, struct bfd_link_info *); |
621 | unsigned long bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type); | |
622 | int bfd_mach_o_core_fetch_environment (bfd *, unsigned char **, unsigned int *); | |
623 | char *bfd_mach_o_core_file_failing_command (bfd *); | |
624 | int bfd_mach_o_core_file_failing_signal (bfd *); | |
625 | bfd_boolean bfd_mach_o_core_file_matches_executable_p (bfd *, bfd *); | |
846b9259 | 626 | bfd *bfd_mach_o_fat_extract (bfd *, bfd_format , const bfd_arch_info_type *); |
154a1ee5 TG |
627 | const bfd_target *bfd_mach_o_header_p (bfd *, bfd_mach_o_filetype, |
628 | bfd_mach_o_cpu_type); | |
b32e07d7 | 629 | bfd_boolean bfd_mach_o_build_commands (bfd *); |
154a1ee5 TG |
630 | bfd_boolean bfd_mach_o_set_section_contents (bfd *, asection *, const void *, |
631 | file_ptr, bfd_size_type); | |
c2f09c75 | 632 | unsigned int bfd_mach_o_version (bfd *); |
3af9a47b | 633 | |
ab76eeaf | 634 | unsigned int bfd_mach_o_get_section_type_from_name (bfd *, const char *); |
53d58d96 | 635 | unsigned int bfd_mach_o_get_section_attribute_from_name (const char *); |
a4551119 TG |
636 | |
637 | void bfd_mach_o_convert_section_name_to_bfd (bfd *, const char *, const char *, | |
638 | const char **, flagword *); | |
d9071b0c TG |
639 | bfd_boolean bfd_mach_o_find_nearest_line (bfd *, asection *, asymbol **, |
640 | bfd_vma, const char **, | |
641 | const char **, unsigned int *); | |
642 | bfd_boolean bfd_mach_o_close_and_cleanup (bfd *); | |
dff55db0 | 643 | bfd_boolean bfd_mach_o_free_cached_info (bfd *); |
53d58d96 | 644 | |
c5012cd8 TG |
645 | unsigned int bfd_mach_o_section_get_nbr_indirect (bfd *, bfd_mach_o_section *); |
646 | unsigned int bfd_mach_o_section_get_entry_size (bfd *, bfd_mach_o_section *); | |
647 | bfd_boolean bfd_mach_o_read_symtab_symbols (bfd *); | |
648 | bfd_boolean bfd_mach_o_read_symtab_strtab (bfd *abfd); | |
649 | ||
7f307238 IS |
650 | /* A placeholder in case we need to suppress emitting the dysymtab for some |
651 | reason (e.g. compatibility with older system versions). */ | |
652 | #define bfd_mach_o_should_emit_dysymtab(x) TRUE | |
653 | ||
c5012cd8 TG |
654 | extern const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[]; |
655 | extern const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[]; | |
656 | ||
3af9a47b NC |
657 | extern const bfd_target mach_o_fat_vec; |
658 | ||
a4551119 TG |
659 | /* Interfaces between BFD names and Mach-O names. */ |
660 | ||
661 | typedef struct mach_o_section_name_xlat | |
662 | { | |
663 | const char *bfd_name; | |
664 | const char *mach_o_name; | |
665 | flagword bfd_flags; | |
666 | unsigned int macho_sectype; | |
667 | unsigned int macho_secattr; | |
668 | unsigned int sectalign; | |
669 | } mach_o_section_name_xlat; | |
670 | ||
671 | typedef struct mach_o_segment_name_xlat | |
672 | { | |
673 | const char *segname; | |
674 | const mach_o_section_name_xlat *sections; | |
675 | } mach_o_segment_name_xlat; | |
676 | ||
677 | const mach_o_section_name_xlat * | |
678 | bfd_mach_o_section_data_for_mach_sect (bfd *, const char *, const char *); | |
679 | const mach_o_section_name_xlat * | |
680 | bfd_mach_o_section_data_for_bfd_name (bfd *, const char *, const char **); | |
681 | ||
682 | typedef struct bfd_mach_o_backend_data | |
683 | { | |
684 | enum bfd_architecture arch; | |
685 | bfd_boolean (*_bfd_mach_o_swap_reloc_in)(arelent *, bfd_mach_o_reloc_info *); | |
686 | bfd_boolean (*_bfd_mach_o_swap_reloc_out)(arelent *, bfd_mach_o_reloc_info *); | |
687 | bfd_boolean (*_bfd_mach_o_print_thread)(bfd *, bfd_mach_o_thread_flavour *, | |
688 | void *, char *); | |
689 | const mach_o_segment_name_xlat *segsec_names_xlat; | |
ab76eeaf | 690 | bfd_boolean (*bfd_mach_o_section_type_valid_for_target) (unsigned long); |
a4551119 TG |
691 | } |
692 | bfd_mach_o_backend_data; | |
693 | ||
7f307238 IS |
694 | /* Symbol type tests. */ |
695 | ||
696 | #define IS_MACHO_INDIRECT(x) (((x) & BFD_MACH_O_N_TYPE) == BFD_MACH_O_N_INDR) | |
697 | ||
3af9a47b | 698 | #endif /* _BFD_MACH_O_H_ */ |