Commit | Line | Data |
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3af9a47b | 1 | /* Mach-O support for BFD. |
2571583a | 2 | Copyright (C) 1999-2017 Free Software Foundation, Inc. |
3af9a47b NC |
3 | |
4 | This file is part of BFD, the Binary File Descriptor library. | |
5 | ||
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 | |
cd123cb7 | 8 | the Free Software Foundation; either version 3 of the License, or |
3af9a47b NC |
9 | (at your option) any later version. |
10 | ||
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. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
e84d6fca | 17 | along with this program; if not, write to the Free Software |
cd123cb7 NC |
18 | Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, |
19 | MA 02110-1301, USA. */ | |
3af9a47b NC |
20 | |
21 | #ifndef _BFD_MACH_O_H_ | |
22 | #define _BFD_MACH_O_H_ | |
23 | ||
24 | #include "bfd.h" | |
74f26653 | 25 | #include "mach-o/loader.h" |
47daa70f | 26 | #include "mach-o/external.h" |
15e1c58a | 27 | |
55172d69 PA |
28 | #ifdef __cplusplus |
29 | extern "C" { | |
30 | #endif | |
31 | ||
3af9a47b NC |
32 | typedef struct bfd_mach_o_header |
33 | { | |
34 | unsigned long magic; | |
35 | unsigned long cputype; | |
36 | unsigned long cpusubtype; | |
37 | unsigned long filetype; | |
38 | unsigned long ncmds; | |
39 | unsigned long sizeofcmds; | |
40 | unsigned long flags; | |
1e8a024a TG |
41 | unsigned int reserved; |
42 | /* Version 1: 32 bits, version 2: 64 bits. */ | |
43 | unsigned int version; | |
3af9a47b NC |
44 | enum bfd_endian byteorder; |
45 | } | |
46 | bfd_mach_o_header; | |
47 | ||
50d10658 IS |
48 | typedef struct bfd_mach_o_asymbol |
49 | { | |
50 | /* The actual symbol which the rest of BFD works with. */ | |
51 | asymbol symbol; | |
52 | ||
53 | /* Mach-O symbol fields. */ | |
54 | unsigned char n_type; | |
55 | unsigned char n_sect; | |
56 | unsigned short n_desc; | |
57 | } | |
58 | bfd_mach_o_asymbol; | |
59 | ||
f1bde64c TG |
60 | #define BFD_MACH_O_SEGNAME_SIZE 16 |
61 | #define BFD_MACH_O_SECTNAME_SIZE 16 | |
62 | ||
3af9a47b NC |
63 | typedef struct bfd_mach_o_section |
64 | { | |
53d58d96 | 65 | /* Fields present in the file. */ |
f1bde64c TG |
66 | char sectname[BFD_MACH_O_SECTNAME_SIZE + 1]; /* Always NUL padded. */ |
67 | char segname[BFD_MACH_O_SEGNAME_SIZE + 1]; | |
3af9a47b NC |
68 | bfd_vma addr; |
69 | bfd_vma size; | |
70 | bfd_vma offset; | |
71 | unsigned long align; | |
72 | bfd_vma reloff; | |
73 | unsigned long nreloc; | |
74 | unsigned long flags; | |
75 | unsigned long reserved1; | |
76 | unsigned long reserved2; | |
1e8a024a | 77 | unsigned long reserved3; |
53d58d96 TG |
78 | |
79 | /* Corresponding bfd section. */ | |
80 | asection *bfdsection; | |
f1bde64c | 81 | |
50d10658 IS |
82 | /* An array holding the indirect symbols for this section. |
83 | NULL values indicate local symbols. | |
84 | The number of symbols is determined from the section size and type. */ | |
85 | ||
86 | bfd_mach_o_asymbol **indirect_syms; | |
87 | ||
f1bde64c TG |
88 | /* Simply linked list. */ |
89 | struct bfd_mach_o_section *next; | |
3af9a47b NC |
90 | } |
91 | bfd_mach_o_section; | |
92 | ||
93 | typedef struct bfd_mach_o_segment_command | |
94 | { | |
a4551119 | 95 | char segname[BFD_MACH_O_SEGNAME_SIZE + 1]; |
3af9a47b NC |
96 | bfd_vma vmaddr; |
97 | bfd_vma vmsize; | |
98 | bfd_vma fileoff; | |
99 | unsigned long filesize; | |
15e1c58a TG |
100 | unsigned long maxprot; /* Maximum permitted protection. */ |
101 | unsigned long initprot; /* Initial protection. */ | |
3af9a47b NC |
102 | unsigned long nsects; |
103 | unsigned long flags; | |
f1bde64c TG |
104 | |
105 | /* Linked list of sections. */ | |
106 | bfd_mach_o_section *sect_head; | |
107 | bfd_mach_o_section *sect_tail; | |
3af9a47b NC |
108 | } |
109 | bfd_mach_o_segment_command; | |
110 | ||
15e1c58a TG |
111 | /* Protection flags. */ |
112 | #define BFD_MACH_O_PROT_READ 0x01 | |
113 | #define BFD_MACH_O_PROT_WRITE 0x02 | |
114 | #define BFD_MACH_O_PROT_EXECUTE 0x04 | |
115 | ||
92bc0e80 TG |
116 | /* Expanded internal representation of a relocation entry. */ |
117 | typedef struct bfd_mach_o_reloc_info | |
118 | { | |
119 | bfd_vma r_address; | |
120 | bfd_vma r_value; | |
121 | unsigned int r_scattered : 1; | |
122 | unsigned int r_type : 4; | |
123 | unsigned int r_pcrel : 1; | |
124 | unsigned int r_length : 2; | |
125 | unsigned int r_extern : 1; | |
126 | } | |
127 | bfd_mach_o_reloc_info; | |
128 | ||
7f307238 IS |
129 | /* The symbol table is sorted like this: |
130 | (1) local. | |
131 | (otherwise in order of generation) | |
132 | (2) external defined | |
133 | (sorted by name) | |
50d10658 | 134 | (3) external undefined / common |
7f307238 IS |
135 | (sorted by name) |
136 | */ | |
137 | ||
3af9a47b NC |
138 | typedef struct bfd_mach_o_symtab_command |
139 | { | |
92bc0e80 TG |
140 | unsigned int symoff; |
141 | unsigned int nsyms; | |
142 | unsigned int stroff; | |
143 | unsigned int strsize; | |
144 | bfd_mach_o_asymbol *symbols; | |
3af9a47b | 145 | char *strtab; |
3af9a47b NC |
146 | } |
147 | bfd_mach_o_symtab_command; | |
148 | ||
149 | /* This is the second set of the symbolic information which is used to support | |
7dee875e | 150 | the data structures for the dynamically link editor. |
e84d6fca | 151 | |
3af9a47b NC |
152 | The original set of symbolic information in the symtab_command which contains |
153 | the symbol and string tables must also be present when this load command is | |
154 | present. When this load command is present the symbol table is organized | |
155 | into three groups of symbols: | |
156 | local symbols (static and debugging symbols) - grouped by module | |
157 | defined external symbols - grouped by module (sorted by name if not lib) | |
158 | undefined external symbols (sorted by name) | |
159 | In this load command there are offsets and counts to each of the three groups | |
160 | of symbols. | |
e84d6fca | 161 | |
3af9a47b NC |
162 | This load command contains a the offsets and sizes of the following new |
163 | symbolic information tables: | |
164 | table of contents | |
165 | module table | |
166 | reference symbol table | |
167 | indirect symbol table | |
168 | The first three tables above (the table of contents, module table and | |
7dee875e | 169 | reference symbol table) are only present if the file is a dynamically linked |
3af9a47b NC |
170 | shared library. For executable and object modules, which are files |
171 | containing only one module, the information that would be in these three | |
172 | tables is determined as follows: | |
173 | table of contents - the defined external symbols are sorted by name | |
174 | module table - the file contains only one module so everything in the | |
07d6d2b8 | 175 | file is part of the module. |
3af9a47b | 176 | reference symbol table - is the defined and undefined external symbols |
e84d6fca | 177 | |
7dee875e | 178 | For dynamically linked shared library files this load command also contains |
3af9a47b NC |
179 | offsets and sizes to the pool of relocation entries for all sections |
180 | separated into two groups: | |
181 | external relocation entries | |
182 | local relocation entries | |
183 | For executable and object modules the relocation entries continue to hang | |
184 | off the section structures. */ | |
185 | ||
046b007d TG |
186 | typedef struct bfd_mach_o_dylib_module |
187 | { | |
188 | /* Index into the string table indicating the name of the module. */ | |
189 | unsigned long module_name_idx; | |
190 | char *module_name; | |
191 | ||
192 | /* Index into the symbol table of the first defined external symbol provided | |
193 | by the module. */ | |
194 | unsigned long iextdefsym; | |
195 | ||
196 | /* Number of external symbols provided by this module. */ | |
197 | unsigned long nextdefsym; | |
198 | ||
199 | /* Index into the external reference table of the first entry | |
200 | provided by this module. */ | |
201 | unsigned long irefsym; | |
202 | ||
203 | /* Number of external reference entries provided by this module. */ | |
204 | unsigned long nrefsym; | |
205 | ||
206 | /* Index into the symbol table of the first local symbol provided by this | |
207 | module. */ | |
208 | unsigned long ilocalsym; | |
209 | ||
210 | /* Number of local symbols provided by this module. */ | |
211 | unsigned long nlocalsym; | |
212 | ||
213 | /* Index into the external relocation table of the first entry provided | |
214 | by this module. */ | |
215 | unsigned long iextrel; | |
216 | ||
217 | /* Number of external relocation entries provided by this module. */ | |
218 | unsigned long nextrel; | |
219 | ||
220 | /* Index in the module initialization section to the pointers for this | |
221 | module. */ | |
222 | unsigned short iinit; | |
223 | ||
224 | /* Index in the module termination section to the pointers for this | |
225 | module. */ | |
226 | unsigned short iterm; | |
227 | ||
228 | /* Number of pointers in the module initialization for this module. */ | |
229 | unsigned short ninit; | |
230 | ||
231 | /* Number of pointers in the module termination for this module. */ | |
232 | unsigned short nterm; | |
233 | ||
234 | /* Number of data byte for this module that are used in the __module_info | |
235 | section of the __OBJC segment. */ | |
236 | unsigned long objc_module_info_size; | |
237 | ||
238 | /* Statically linked address of the start of the data for this module | |
239 | in the __module_info section of the __OBJC_segment. */ | |
240 | bfd_vma objc_module_info_addr; | |
241 | } | |
242 | bfd_mach_o_dylib_module; | |
046b007d TG |
243 | |
244 | typedef struct bfd_mach_o_dylib_table_of_content | |
245 | { | |
246 | /* Index into the symbol table to the defined external symbol. */ | |
247 | unsigned long symbol_index; | |
248 | ||
249 | /* Index into the module table to the module for this entry. */ | |
250 | unsigned long module_index; | |
251 | } | |
252 | bfd_mach_o_dylib_table_of_content; | |
046b007d TG |
253 | |
254 | typedef struct bfd_mach_o_dylib_reference | |
255 | { | |
256 | /* Index into the symbol table for the symbol being referenced. */ | |
257 | unsigned long isym; | |
258 | ||
259 | /* Type of the reference being made (use REFERENCE_FLAGS constants). */ | |
260 | unsigned long flags; | |
261 | } | |
262 | bfd_mach_o_dylib_reference; | |
263 | #define BFD_MACH_O_REFERENCE_SIZE 4 | |
264 | ||
3af9a47b NC |
265 | typedef struct bfd_mach_o_dysymtab_command |
266 | { | |
267 | /* The symbols indicated by symoff and nsyms of the LC_SYMTAB load command | |
268 | are grouped into the following three groups: | |
269 | local symbols (further grouped by the module they are from) | |
270 | defined external symbols (further grouped by the module they are from) | |
271 | undefined symbols | |
e84d6fca | 272 | |
3af9a47b NC |
273 | The local symbols are used only for debugging. The dynamic binding |
274 | process may have to use them to indicate to the debugger the local | |
275 | symbols for a module that is being bound. | |
e84d6fca | 276 | |
3af9a47b NC |
277 | The last two groups are used by the dynamic binding process to do the |
278 | binding (indirectly through the module table and the reference symbol | |
7dee875e | 279 | table when this is a dynamically linked shared library file). */ |
3af9a47b NC |
280 | |
281 | unsigned long ilocalsym; /* Index to local symbols. */ | |
282 | unsigned long nlocalsym; /* Number of local symbols. */ | |
283 | unsigned long iextdefsym; /* Index to externally defined symbols. */ | |
284 | unsigned long nextdefsym; /* Number of externally defined symbols. */ | |
285 | unsigned long iundefsym; /* Index to undefined symbols. */ | |
286 | unsigned long nundefsym; /* Number of undefined symbols. */ | |
287 | ||
288 | /* For the for the dynamic binding process to find which module a symbol | |
289 | is defined in the table of contents is used (analogous to the ranlib | |
290 | structure in an archive) which maps defined external symbols to modules | |
7dee875e | 291 | they are defined in. This exists only in a dynamically linked shared |
3af9a47b NC |
292 | library file. For executable and object modules the defined external |
293 | symbols are sorted by name and is use as the table of contents. */ | |
294 | ||
295 | unsigned long tocoff; /* File offset to table of contents. */ | |
07d6d2b8 | 296 | unsigned long ntoc; /* Number of entries in table of contents. */ |
3af9a47b NC |
297 | |
298 | /* To support dynamic binding of "modules" (whole object files) the symbol | |
299 | table must reflect the modules that the file was created from. This is | |
300 | done by having a module table that has indexes and counts into the merged | |
301 | tables for each module. The module structure that these two entries | |
7dee875e | 302 | refer to is described below. This exists only in a dynamically linked |
3af9a47b NC |
303 | shared library file. For executable and object modules the file only |
304 | contains one module so everything in the file belongs to the module. */ | |
305 | ||
306 | unsigned long modtaboff; /* File offset to module table. */ | |
307 | unsigned long nmodtab; /* Number of module table entries. */ | |
308 | ||
309 | /* To support dynamic module binding the module structure for each module | |
310 | indicates the external references (defined and undefined) each module | |
311 | makes. For each module there is an offset and a count into the | |
312 | reference symbol table for the symbols that the module references. | |
7dee875e | 313 | This exists only in a dynamically linked shared library file. For |
3af9a47b NC |
314 | executable and object modules the defined external symbols and the |
315 | undefined external symbols indicates the external references. */ | |
316 | ||
317 | unsigned long extrefsymoff; /* Offset to referenced symbol table. */ | |
318 | unsigned long nextrefsyms; /* Number of referenced symbol table entries. */ | |
319 | ||
320 | /* The sections that contain "symbol pointers" and "routine stubs" have | |
321 | indexes and (implied counts based on the size of the section and fixed | |
322 | size of the entry) into the "indirect symbol" table for each pointer | |
323 | and stub. For every section of these two types the index into the | |
324 | indirect symbol table is stored in the section header in the field | |
325 | reserved1. An indirect symbol table entry is simply a 32bit index into | |
326 | the symbol table to the symbol that the pointer or stub is referring to. | |
327 | The indirect symbol table is ordered to match the entries in the section. */ | |
328 | ||
329 | unsigned long indirectsymoff; /* File offset to the indirect symbol table. */ | |
330 | unsigned long nindirectsyms; /* Number of indirect symbol table entries. */ | |
331 | ||
332 | /* To support relocating an individual module in a library file quickly the | |
333 | external relocation entries for each module in the library need to be | |
334 | accessed efficiently. Since the relocation entries can't be accessed | |
335 | through the section headers for a library file they are separated into | |
336 | groups of local and external entries further grouped by module. In this | |
337 | case the presents of this load command who's extreloff, nextrel, | |
338 | locreloff and nlocrel fields are non-zero indicates that the relocation | |
339 | entries of non-merged sections are not referenced through the section | |
340 | structures (and the reloff and nreloc fields in the section headers are | |
341 | set to zero). | |
342 | ||
343 | Since the relocation entries are not accessed through the section headers | |
344 | this requires the r_address field to be something other than a section | |
345 | offset to identify the item to be relocated. In this case r_address is | |
346 | set to the offset from the vmaddr of the first LC_SEGMENT command. | |
347 | ||
348 | The relocation entries are grouped by module and the module table | |
349 | entries have indexes and counts into them for the group of external | |
350 | relocation entries for that the module. | |
351 | ||
352 | For sections that are merged across modules there must not be any | |
353 | remaining external relocation entries for them (for merged sections | |
354 | remaining relocation entries must be local). */ | |
355 | ||
356 | unsigned long extreloff; /* Offset to external relocation entries. */ | |
357 | unsigned long nextrel; /* Number of external relocation entries. */ | |
358 | ||
359 | /* All the local relocation entries are grouped together (they are not | |
360 | grouped by their module since they are only used if the object is moved | |
7dee875e | 361 | from it statically link edited address). */ |
3af9a47b NC |
362 | |
363 | unsigned long locreloff; /* Offset to local relocation entries. */ | |
364 | unsigned long nlocrel; /* Number of local relocation entries. */ | |
046b007d TG |
365 | |
366 | bfd_mach_o_dylib_module *dylib_module; | |
367 | bfd_mach_o_dylib_table_of_content *dylib_toc; | |
368 | unsigned int *indirect_syms; | |
369 | bfd_mach_o_dylib_reference *ext_refs; | |
3af9a47b | 370 | } |
e84d6fca | 371 | bfd_mach_o_dysymtab_command; |
3af9a47b | 372 | |
e84d6fca | 373 | /* An indirect symbol table entry is simply a 32bit index into the symbol table |
3af9a47b | 374 | to the symbol that the pointer or stub is refering to. Unless it is for a |
046b007d | 375 | non-lazy symbol pointer section for a defined symbol which strip(1) has |
3af9a47b NC |
376 | removed. In which case it has the value INDIRECT_SYMBOL_LOCAL. If the |
377 | symbol was also absolute INDIRECT_SYMBOL_ABS is or'ed with that. */ | |
378 | ||
15e1c58a TG |
379 | #define BFD_MACH_O_INDIRECT_SYMBOL_LOCAL 0x80000000 |
380 | #define BFD_MACH_O_INDIRECT_SYMBOL_ABS 0x40000000 | |
046b007d | 381 | #define BFD_MACH_O_INDIRECT_SYMBOL_SIZE 4 |
3af9a47b | 382 | |
7a79c514 TG |
383 | /* For LC_TWOLEVEL_HINTS. */ |
384 | ||
385 | typedef struct bfd_mach_o_twolevel_hints_command | |
386 | { | |
387 | /* Offset to the hint table. */ | |
388 | unsigned int offset; | |
389 | ||
390 | /* Number of entries in the table. */ | |
391 | unsigned int nhints; | |
392 | } | |
393 | bfd_mach_o_twolevel_hints_command; | |
394 | ||
395 | /* For LC_PREBIND_CKSUM. */ | |
396 | ||
397 | typedef struct bfd_mach_o_prebind_cksum_command | |
398 | { | |
399 | /* Checksum or zero. */ | |
400 | unsigned int cksum; | |
401 | } | |
402 | bfd_mach_o_prebind_cksum_command; | |
403 | ||
b32e07d7 TG |
404 | /* For LC_THREAD or LC_UNIXTHREAD. */ |
405 | ||
3af9a47b NC |
406 | typedef struct bfd_mach_o_thread_flavour |
407 | { | |
408 | unsigned long flavour; | |
b32e07d7 | 409 | unsigned long offset; |
3af9a47b NC |
410 | unsigned long size; |
411 | } | |
412 | bfd_mach_o_thread_flavour; | |
413 | ||
414 | typedef struct bfd_mach_o_thread_command | |
415 | { | |
416 | unsigned long nflavours; | |
e84d6fca | 417 | bfd_mach_o_thread_flavour *flavours; |
3af9a47b NC |
418 | asection *section; |
419 | } | |
420 | bfd_mach_o_thread_command; | |
421 | ||
046b007d TG |
422 | /* For LC_LOAD_DYLINKER and LC_ID_DYLINKER. */ |
423 | ||
3af9a47b NC |
424 | typedef struct bfd_mach_o_dylinker_command |
425 | { | |
07d6d2b8 | 426 | unsigned int name_offset; /* Offset to library's path name. */ |
b32e07d7 | 427 | char *name_str; |
3af9a47b NC |
428 | } |
429 | bfd_mach_o_dylinker_command; | |
430 | ||
046b007d TG |
431 | /* For LC_LOAD_DYLIB, LC_LOAD_WEAK_DYLIB, LC_ID_DYLIB |
432 | or LC_REEXPORT_DYLIB. */ | |
433 | ||
3af9a47b NC |
434 | typedef struct bfd_mach_o_dylib_command |
435 | { | |
07d6d2b8 | 436 | unsigned int name_offset; /* Offset to library's path name. */ |
3af9a47b NC |
437 | unsigned long timestamp; /* Library's build time stamp. */ |
438 | unsigned long current_version; /* Library's current version number. */ | |
439 | unsigned long compatibility_version; /* Library's compatibility vers number. */ | |
b32e07d7 | 440 | char *name_str; |
3af9a47b NC |
441 | } |
442 | bfd_mach_o_dylib_command; | |
443 | ||
046b007d TG |
444 | /* For LC_PREBOUND_DYLIB. */ |
445 | ||
3af9a47b NC |
446 | typedef struct bfd_mach_o_prebound_dylib_command |
447 | { | |
07d6d2b8 AM |
448 | unsigned int name_offset; /* Library's path name. */ |
449 | unsigned int nmodules; /* Number of modules in library. */ | |
7a79c514 TG |
450 | unsigned int linked_modules_offset; /* Bit vector of linked modules. */ |
451 | ||
452 | char *name_str; | |
453 | unsigned char *linked_modules; | |
3af9a47b NC |
454 | } |
455 | bfd_mach_o_prebound_dylib_command; | |
456 | ||
046b007d TG |
457 | /* For LC_UUID. */ |
458 | ||
15e1c58a TG |
459 | typedef struct bfd_mach_o_uuid_command |
460 | { | |
046b007d | 461 | unsigned char uuid[16]; |
15e1c58a TG |
462 | } |
463 | bfd_mach_o_uuid_command; | |
464 | ||
046b007d TG |
465 | /* For LC_CODE_SIGNATURE or LC_SEGMENT_SPLIT_INFO. */ |
466 | ||
467 | typedef struct bfd_mach_o_linkedit_command | |
468 | { | |
469 | unsigned long dataoff; | |
470 | unsigned long datasize; | |
471 | } | |
472 | bfd_mach_o_linkedit_command; | |
473 | ||
474 | typedef struct bfd_mach_o_str_command | |
475 | { | |
476 | unsigned long stroff; | |
477 | unsigned long str_len; | |
478 | char *str; | |
479 | } | |
480 | bfd_mach_o_str_command; | |
481 | ||
9f4a5bd1 TG |
482 | typedef struct bfd_mach_o_fvmlib_command |
483 | { | |
484 | unsigned int name_offset; | |
9f4a5bd1 TG |
485 | char *name_str; |
486 | unsigned int minor_version; | |
487 | unsigned int header_addr; | |
488 | } | |
489 | bfd_mach_o_fvmlib_command; | |
490 | ||
ad86f1fb TG |
491 | typedef struct bfd_mach_o_dyld_info_command |
492 | { | |
493 | /* File offset and size to rebase info. */ | |
1778ad74 | 494 | unsigned int rebase_off; |
ad86f1fb | 495 | unsigned int rebase_size; |
c9ffd2ea | 496 | unsigned char *rebase_content; |
ad86f1fb TG |
497 | |
498 | /* File offset and size of binding info. */ | |
499 | unsigned int bind_off; | |
500 | unsigned int bind_size; | |
c9ffd2ea | 501 | unsigned char *bind_content; |
ad86f1fb TG |
502 | |
503 | /* File offset and size of weak binding info. */ | |
504 | unsigned int weak_bind_off; | |
505 | unsigned int weak_bind_size; | |
c9ffd2ea | 506 | unsigned char *weak_bind_content; |
ad86f1fb TG |
507 | |
508 | /* File offset and size of lazy binding info. */ | |
509 | unsigned int lazy_bind_off; | |
510 | unsigned int lazy_bind_size; | |
c9ffd2ea | 511 | unsigned char *lazy_bind_content; |
ad86f1fb TG |
512 | |
513 | /* File offset and size of export info. */ | |
514 | unsigned int export_off; | |
515 | unsigned int export_size; | |
c9ffd2ea | 516 | unsigned char *export_content; |
ad86f1fb TG |
517 | } |
518 | bfd_mach_o_dyld_info_command; | |
519 | ||
edbdea0e TG |
520 | typedef struct bfd_mach_o_version_min_command |
521 | { | |
522 | unsigned char rel; | |
523 | unsigned char maj; | |
524 | unsigned char min; | |
525 | unsigned int reserved; | |
526 | } | |
527 | bfd_mach_o_version_min_command; | |
528 | ||
fc55a902 TG |
529 | typedef struct bfd_mach_o_encryption_info_command |
530 | { | |
531 | unsigned int cryptoff; | |
532 | unsigned int cryptsize; | |
533 | unsigned int cryptid; | |
534 | } | |
535 | bfd_mach_o_encryption_info_command; | |
536 | ||
1778ad74 TG |
537 | typedef struct bfd_mach_o_main_command |
538 | { | |
539 | bfd_uint64_t entryoff; | |
540 | bfd_uint64_t stacksize; | |
541 | } | |
542 | bfd_mach_o_main_command; | |
543 | ||
544 | typedef struct bfd_mach_o_source_version_command | |
545 | { | |
546 | unsigned int a; | |
547 | unsigned short b; | |
548 | unsigned short c; | |
549 | unsigned short d; | |
550 | unsigned short e; | |
551 | } | |
552 | bfd_mach_o_source_version_command; | |
553 | ||
3af9a47b NC |
554 | typedef struct bfd_mach_o_load_command |
555 | { | |
c9ffd2ea TG |
556 | /* Next command in the single linked list. */ |
557 | struct bfd_mach_o_load_command *next; | |
558 | ||
559 | /* Type and required flag. */ | |
3af9a47b | 560 | bfd_mach_o_load_command_type type; |
154a1ee5 | 561 | bfd_boolean type_required; |
c9ffd2ea TG |
562 | |
563 | /* Offset and length in the file. */ | |
92bc0e80 TG |
564 | unsigned int offset; |
565 | unsigned int len; | |
c9ffd2ea | 566 | |
3af9a47b NC |
567 | union |
568 | { | |
569 | bfd_mach_o_segment_command segment; | |
570 | bfd_mach_o_symtab_command symtab; | |
571 | bfd_mach_o_dysymtab_command dysymtab; | |
572 | bfd_mach_o_thread_command thread; | |
573 | bfd_mach_o_dylib_command dylib; | |
574 | bfd_mach_o_dylinker_command dylinker; | |
575 | bfd_mach_o_prebound_dylib_command prebound_dylib; | |
7a79c514 TG |
576 | bfd_mach_o_prebind_cksum_command prebind_cksum; |
577 | bfd_mach_o_twolevel_hints_command twolevel_hints; | |
15e1c58a | 578 | bfd_mach_o_uuid_command uuid; |
046b007d TG |
579 | bfd_mach_o_linkedit_command linkedit; |
580 | bfd_mach_o_str_command str; | |
ad86f1fb | 581 | bfd_mach_o_dyld_info_command dyld_info; |
edbdea0e | 582 | bfd_mach_o_version_min_command version_min; |
fc55a902 | 583 | bfd_mach_o_encryption_info_command encryption_info; |
9f4a5bd1 | 584 | bfd_mach_o_fvmlib_command fvmlib; |
1778ad74 TG |
585 | bfd_mach_o_main_command main; |
586 | bfd_mach_o_source_version_command source_version; | |
c9ffd2ea | 587 | } command; |
3af9a47b NC |
588 | } |
589 | bfd_mach_o_load_command; | |
590 | ||
591 | typedef struct mach_o_data_struct | |
592 | { | |
92bc0e80 | 593 | /* Mach-O header. */ |
3af9a47b | 594 | bfd_mach_o_header header; |
47daa70f TG |
595 | |
596 | /* File offset of the header. Usually this is 0. */ | |
597 | file_ptr hdr_offset; | |
598 | ||
92bc0e80 | 599 | /* Array of load commands (length is given by header.ncmds). */ |
c9ffd2ea TG |
600 | bfd_mach_o_load_command *first_command; |
601 | bfd_mach_o_load_command *last_command; | |
92bc0e80 TG |
602 | |
603 | /* Flatten array of sections. The array is 0-based. */ | |
3af9a47b NC |
604 | unsigned long nsects; |
605 | bfd_mach_o_section **sections; | |
92bc0e80 | 606 | |
7f307238 | 607 | /* Used while writing: current length of the output file. This is used |
92bc0e80 TG |
608 | to allocate space in the file. */ |
609 | ufile_ptr filelen; | |
046b007d TG |
610 | |
611 | /* As symtab is referenced by other load command, it is handy to have | |
edbdea0e | 612 | a direct access to it. Although it is not clearly stated, only one symtab |
046b007d TG |
613 | is expected. */ |
614 | bfd_mach_o_symtab_command *symtab; | |
b32e07d7 | 615 | bfd_mach_o_dysymtab_command *dysymtab; |
d9071b0c TG |
616 | |
617 | /* A place to stash dwarf2 info for this bfd. */ | |
618 | void *dwarf2_find_line_info; | |
dff55db0 | 619 | |
2ca7691a TG |
620 | /* BFD of .dSYM file. */ |
621 | bfd *dsym_bfd; | |
622 | ||
dff55db0 TG |
623 | /* Cache of dynamic relocs. */ |
624 | arelent *dyn_reloc_cache; | |
3af9a47b | 625 | } |
046b007d | 626 | bfd_mach_o_data_struct; |
3af9a47b | 627 | |
c5012cd8 TG |
628 | typedef struct bfd_mach_o_xlat_name |
629 | { | |
630 | const char *name; | |
631 | unsigned long val; | |
632 | } | |
633 | bfd_mach_o_xlat_name; | |
634 | ||
92bc0e80 | 635 | /* Target specific routines. */ |
15e1c58a | 636 | |
046b007d | 637 | #define bfd_mach_o_get_data(abfd) ((abfd)->tdata.mach_o_data) |
92bc0e80 TG |
638 | #define bfd_mach_o_get_backend_data(abfd) \ |
639 | ((bfd_mach_o_backend_data*)(abfd)->xvec->backend_data) | |
3af9a47b | 640 | |
f1bde64c TG |
641 | /* Get the Mach-O header for section SEC. */ |
642 | #define bfd_mach_o_get_mach_o_section(sec) \ | |
643 | ((bfd_mach_o_section *)(sec)->used_by_bfd) | |
644 | ||
154a1ee5 | 645 | bfd_boolean bfd_mach_o_valid (bfd *); |
154a1ee5 TG |
646 | bfd_boolean bfd_mach_o_mkobject_init (bfd *); |
647 | const bfd_target *bfd_mach_o_object_p (bfd *); | |
648 | const bfd_target *bfd_mach_o_core_p (bfd *); | |
47daa70f TG |
649 | const bfd_target *bfd_mach_o_fat_archive_p (bfd *); |
650 | bfd *bfd_mach_o_fat_openr_next_archived_file (bfd *, bfd *); | |
42fa0891 | 651 | bfd_boolean bfd_mach_o_set_arch_mach (bfd *, enum bfd_architecture, |
07d6d2b8 | 652 | unsigned long); |
154a1ee5 | 653 | int bfd_mach_o_lookup_command (bfd *, bfd_mach_o_load_command_type, bfd_mach_o_load_command **); |
f1bde64c | 654 | bfd_boolean bfd_mach_o_new_section_hook (bfd *, asection *); |
154a1ee5 TG |
655 | bfd_boolean bfd_mach_o_write_contents (bfd *); |
656 | bfd_boolean bfd_mach_o_bfd_copy_private_symbol_data (bfd *, asymbol *, | |
07d6d2b8 | 657 | bfd *, asymbol *); |
154a1ee5 | 658 | bfd_boolean bfd_mach_o_bfd_copy_private_section_data (bfd *, asection *, |
07d6d2b8 | 659 | bfd *, asection *); |
967b2c53 | 660 | bfd_boolean bfd_mach_o_bfd_copy_private_header_data (bfd *, bfd *); |
0c9ef0f0 | 661 | bfd_boolean bfd_mach_o_bfd_set_private_flags (bfd *, flagword); |
154a1ee5 TG |
662 | long bfd_mach_o_get_symtab_upper_bound (bfd *); |
663 | long bfd_mach_o_canonicalize_symtab (bfd *, asymbol **); | |
68ffbac6 | 664 | long bfd_mach_o_get_synthetic_symtab (bfd *, long, asymbol **, long, |
07d6d2b8 | 665 | asymbol **, asymbol **ret); |
b32e07d7 TG |
666 | long bfd_mach_o_get_reloc_upper_bound (bfd *, asection *); |
667 | long bfd_mach_o_canonicalize_reloc (bfd *, asection *, arelent **, asymbol **); | |
668 | long bfd_mach_o_get_dynamic_reloc_upper_bound (bfd *); | |
669 | long bfd_mach_o_canonicalize_dynamic_reloc (bfd *, arelent **, asymbol **); | |
154a1ee5 TG |
670 | asymbol *bfd_mach_o_make_empty_symbol (bfd *); |
671 | void bfd_mach_o_get_symbol_info (bfd *, asymbol *, symbol_info *); | |
2c3fc389 | 672 | void bfd_mach_o_print_symbol (bfd *, void *, asymbol *, bfd_print_symbol_type); |
154a1ee5 TG |
673 | int bfd_mach_o_sizeof_headers (bfd *, struct bfd_link_info *); |
674 | unsigned long bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type); | |
675 | int bfd_mach_o_core_fetch_environment (bfd *, unsigned char **, unsigned int *); | |
676 | char *bfd_mach_o_core_file_failing_command (bfd *); | |
677 | int bfd_mach_o_core_file_failing_signal (bfd *); | |
678 | bfd_boolean bfd_mach_o_core_file_matches_executable_p (bfd *, bfd *); | |
846b9259 | 679 | bfd *bfd_mach_o_fat_extract (bfd *, bfd_format , const bfd_arch_info_type *); |
47daa70f | 680 | const bfd_target *bfd_mach_o_header_p (bfd *, file_ptr, bfd_mach_o_filetype, |
07d6d2b8 | 681 | bfd_mach_o_cpu_type); |
b32e07d7 | 682 | bfd_boolean bfd_mach_o_build_commands (bfd *); |
154a1ee5 | 683 | bfd_boolean bfd_mach_o_set_section_contents (bfd *, asection *, const void *, |
07d6d2b8 | 684 | file_ptr, bfd_size_type); |
c2f09c75 | 685 | unsigned int bfd_mach_o_version (bfd *); |
3af9a47b | 686 | |
ab76eeaf | 687 | unsigned int bfd_mach_o_get_section_type_from_name (bfd *, const char *); |
53d58d96 | 688 | unsigned int bfd_mach_o_get_section_attribute_from_name (const char *); |
a4551119 TG |
689 | |
690 | void bfd_mach_o_convert_section_name_to_bfd (bfd *, const char *, const char *, | |
691 | const char **, flagword *); | |
fb167eb2 AM |
692 | bfd_boolean bfd_mach_o_find_nearest_line (bfd *, asymbol **, |
693 | asection *, bfd_vma, | |
694 | const char **, const char **, | |
695 | unsigned int *, unsigned int *); | |
9c461f7d | 696 | #define bfd_mach_o_find_line _bfd_nosymbols_find_line |
d9071b0c | 697 | bfd_boolean bfd_mach_o_close_and_cleanup (bfd *); |
dff55db0 | 698 | bfd_boolean bfd_mach_o_free_cached_info (bfd *); |
53d58d96 | 699 | |
c5012cd8 TG |
700 | unsigned int bfd_mach_o_section_get_nbr_indirect (bfd *, bfd_mach_o_section *); |
701 | unsigned int bfd_mach_o_section_get_entry_size (bfd *, bfd_mach_o_section *); | |
702 | bfd_boolean bfd_mach_o_read_symtab_symbols (bfd *); | |
703 | bfd_boolean bfd_mach_o_read_symtab_strtab (bfd *abfd); | |
704 | ||
3cc27770 TG |
705 | bfd_vma bfd_mach_o_get_base_address (bfd *); |
706 | ||
bcb51645 TG |
707 | void bfd_mach_o_swap_in_non_scattered_reloc (bfd *, bfd_mach_o_reloc_info *, |
708 | unsigned char *); | |
709 | bfd_boolean bfd_mach_o_canonicalize_non_scattered_reloc (bfd *, bfd_mach_o_reloc_info *, arelent *, asymbol **); | |
710 | bfd_boolean bfd_mach_o_pre_canonicalize_one_reloc (bfd *, struct mach_o_reloc_info_external *, bfd_mach_o_reloc_info *, arelent *, asymbol **); | |
711 | ||
7f307238 IS |
712 | /* A placeholder in case we need to suppress emitting the dysymtab for some |
713 | reason (e.g. compatibility with older system versions). */ | |
714 | #define bfd_mach_o_should_emit_dysymtab(x) TRUE | |
715 | ||
c5012cd8 TG |
716 | extern const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name[]; |
717 | extern const bfd_mach_o_xlat_name bfd_mach_o_section_type_name[]; | |
718 | ||
3af9a47b NC |
719 | extern const bfd_target mach_o_fat_vec; |
720 | ||
a4551119 TG |
721 | /* Interfaces between BFD names and Mach-O names. */ |
722 | ||
723 | typedef struct mach_o_section_name_xlat | |
724 | { | |
725 | const char *bfd_name; | |
726 | const char *mach_o_name; | |
727 | flagword bfd_flags; | |
728 | unsigned int macho_sectype; | |
729 | unsigned int macho_secattr; | |
730 | unsigned int sectalign; | |
731 | } mach_o_section_name_xlat; | |
732 | ||
733 | typedef struct mach_o_segment_name_xlat | |
734 | { | |
735 | const char *segname; | |
736 | const mach_o_section_name_xlat *sections; | |
737 | } mach_o_segment_name_xlat; | |
738 | ||
739 | const mach_o_section_name_xlat * | |
740 | bfd_mach_o_section_data_for_mach_sect (bfd *, const char *, const char *); | |
741 | const mach_o_section_name_xlat * | |
742 | bfd_mach_o_section_data_for_bfd_name (bfd *, const char *, const char **); | |
743 | ||
744 | typedef struct bfd_mach_o_backend_data | |
745 | { | |
746 | enum bfd_architecture arch; | |
4384b284 | 747 | bfd_vma page_size; |
bcb51645 | 748 | bfd_boolean (*_bfd_mach_o_canonicalize_one_reloc) |
ca4cf9b9 | 749 | (bfd *, struct mach_o_reloc_info_external *, arelent *, asymbol **, arelent *); |
a4551119 TG |
750 | bfd_boolean (*_bfd_mach_o_swap_reloc_out)(arelent *, bfd_mach_o_reloc_info *); |
751 | bfd_boolean (*_bfd_mach_o_print_thread)(bfd *, bfd_mach_o_thread_flavour *, | |
07d6d2b8 | 752 | void *, char *); |
a4551119 | 753 | const mach_o_segment_name_xlat *segsec_names_xlat; |
ab76eeaf | 754 | bfd_boolean (*bfd_mach_o_section_type_valid_for_target) (unsigned long); |
a4551119 TG |
755 | } |
756 | bfd_mach_o_backend_data; | |
757 | ||
b22161d6 IS |
758 | /* Values used in symbol.udata.i, to signal that the mach-o-specific data in the |
759 | symbol are not yet set, or need validation (where this is possible). */ | |
7f307238 | 760 | |
b22161d6 IS |
761 | #define SYM_MACHO_FIELDS_UNSET ((bfd_vma) -1) |
762 | #define SYM_MACHO_FIELDS_NOT_VALIDATED ((bfd_vma) -2) | |
7f307238 | 763 | |
55172d69 PA |
764 | #ifdef __cplusplus |
765 | } | |
766 | #endif | |
767 | ||
3af9a47b | 768 | #endif /* _BFD_MACH_O_H_ */ |