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