1 /* Mach-O support for BFD.
2 Copyright (C) 1999-2018 Free Software Foundation, Inc.
4 This file is part of BFD, the Binary File Descriptor library.
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program; if not, write to the Free Software
18 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
19 MA 02110-1301, USA. */
21 #ifndef _BFD_MACH_O_H_
22 #define _BFD_MACH_O_H_
25 #include "mach-o/loader.h"
26 #include "mach-o/external.h"
32 typedef struct bfd_mach_o_header
35 unsigned long cputype
;
36 unsigned long cpusubtype
;
37 unsigned long filetype
;
39 unsigned long sizeofcmds
;
41 unsigned int reserved
;
42 /* Version 1: 32 bits, version 2: 64 bits. */
44 enum bfd_endian byteorder
;
48 typedef struct bfd_mach_o_asymbol
50 /* The actual symbol which the rest of BFD works with. */
53 /* Mach-O symbol fields. */
56 unsigned short n_desc
;
60 #define BFD_MACH_O_SEGNAME_SIZE 16
61 #define BFD_MACH_O_SECTNAME_SIZE 16
63 typedef struct bfd_mach_o_section
65 /* Fields present in the file. */
66 char sectname
[BFD_MACH_O_SECTNAME_SIZE
+ 1]; /* Always NUL padded. */
67 char segname
[BFD_MACH_O_SEGNAME_SIZE
+ 1];
75 unsigned long reserved1
;
76 unsigned long reserved2
;
77 unsigned long reserved3
;
79 /* Corresponding bfd section. */
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. */
86 bfd_mach_o_asymbol
**indirect_syms
;
88 /* Simply linked list. */
89 struct bfd_mach_o_section
*next
;
93 typedef struct bfd_mach_o_segment_command
95 char segname
[BFD_MACH_O_SEGNAME_SIZE
+ 1];
99 unsigned long filesize
;
100 unsigned long maxprot
; /* Maximum permitted protection. */
101 unsigned long initprot
; /* Initial protection. */
102 unsigned long nsects
;
105 /* Linked list of sections. */
106 bfd_mach_o_section
*sect_head
;
107 bfd_mach_o_section
*sect_tail
;
109 bfd_mach_o_segment_command
;
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
116 /* Target platforms. */
117 #define BFD_MACH_O_PLATFORM_MACOS 1
118 #define BFD_MACH_O_PLATFORM_IOS 2
119 #define BFD_MACH_O_PLATFORM_TVOS 3
120 #define BFD_MACH_O_PLATFORM_WATCHOS 4
121 #define BFD_MACH_O_PLATFORM_BRIDGEOS 5
124 #define BFD_MACH_O_TOOL_CLANG 1
125 #define BFD_MACH_O_TOOL_SWIFT 2
126 #define BFD_MACH_O_TOOL_LD 3
128 /* Expanded internal representation of a relocation entry. */
129 typedef struct bfd_mach_o_reloc_info
133 unsigned int r_scattered
: 1;
134 unsigned int r_type
: 4;
135 unsigned int r_pcrel
: 1;
136 unsigned int r_length
: 2;
137 unsigned int r_extern
: 1;
139 bfd_mach_o_reloc_info
;
141 /* The symbol table is sorted like this:
143 (otherwise in order of generation)
146 (3) external undefined / common
150 typedef struct bfd_mach_o_symtab_command
155 unsigned int strsize
;
156 bfd_mach_o_asymbol
*symbols
;
159 bfd_mach_o_symtab_command
;
161 /* This is the second set of the symbolic information which is used to support
162 the data structures for the dynamically link editor.
164 The original set of symbolic information in the symtab_command which contains
165 the symbol and string tables must also be present when this load command is
166 present. When this load command is present the symbol table is organized
167 into three groups of symbols:
168 local symbols (static and debugging symbols) - grouped by module
169 defined external symbols - grouped by module (sorted by name if not lib)
170 undefined external symbols (sorted by name)
171 In this load command there are offsets and counts to each of the three groups
174 This load command contains a the offsets and sizes of the following new
175 symbolic information tables:
178 reference symbol table
179 indirect symbol table
180 The first three tables above (the table of contents, module table and
181 reference symbol table) are only present if the file is a dynamically linked
182 shared library. For executable and object modules, which are files
183 containing only one module, the information that would be in these three
184 tables is determined as follows:
185 table of contents - the defined external symbols are sorted by name
186 module table - the file contains only one module so everything in the
187 file is part of the module.
188 reference symbol table - is the defined and undefined external symbols
190 For dynamically linked shared library files this load command also contains
191 offsets and sizes to the pool of relocation entries for all sections
192 separated into two groups:
193 external relocation entries
194 local relocation entries
195 For executable and object modules the relocation entries continue to hang
196 off the section structures. */
198 typedef struct bfd_mach_o_dylib_module
200 /* Index into the string table indicating the name of the module. */
201 unsigned long module_name_idx
;
204 /* Index into the symbol table of the first defined external symbol provided
206 unsigned long iextdefsym
;
208 /* Number of external symbols provided by this module. */
209 unsigned long nextdefsym
;
211 /* Index into the external reference table of the first entry
212 provided by this module. */
213 unsigned long irefsym
;
215 /* Number of external reference entries provided by this module. */
216 unsigned long nrefsym
;
218 /* Index into the symbol table of the first local symbol provided by this
220 unsigned long ilocalsym
;
222 /* Number of local symbols provided by this module. */
223 unsigned long nlocalsym
;
225 /* Index into the external relocation table of the first entry provided
227 unsigned long iextrel
;
229 /* Number of external relocation entries provided by this module. */
230 unsigned long nextrel
;
232 /* Index in the module initialization section to the pointers for this
234 unsigned short iinit
;
236 /* Index in the module termination section to the pointers for this
238 unsigned short iterm
;
240 /* Number of pointers in the module initialization for this module. */
241 unsigned short ninit
;
243 /* Number of pointers in the module termination for this module. */
244 unsigned short nterm
;
246 /* Number of data byte for this module that are used in the __module_info
247 section of the __OBJC segment. */
248 unsigned long objc_module_info_size
;
250 /* Statically linked address of the start of the data for this module
251 in the __module_info section of the __OBJC_segment. */
252 bfd_vma objc_module_info_addr
;
254 bfd_mach_o_dylib_module
;
256 typedef struct bfd_mach_o_dylib_table_of_content
258 /* Index into the symbol table to the defined external symbol. */
259 unsigned long symbol_index
;
261 /* Index into the module table to the module for this entry. */
262 unsigned long module_index
;
264 bfd_mach_o_dylib_table_of_content
;
266 typedef struct bfd_mach_o_dylib_reference
268 /* Index into the symbol table for the symbol being referenced. */
271 /* Type of the reference being made (use REFERENCE_FLAGS constants). */
274 bfd_mach_o_dylib_reference
;
275 #define BFD_MACH_O_REFERENCE_SIZE 4
277 typedef struct bfd_mach_o_dysymtab_command
279 /* The symbols indicated by symoff and nsyms of the LC_SYMTAB load command
280 are grouped into the following three groups:
281 local symbols (further grouped by the module they are from)
282 defined external symbols (further grouped by the module they are from)
285 The local symbols are used only for debugging. The dynamic binding
286 process may have to use them to indicate to the debugger the local
287 symbols for a module that is being bound.
289 The last two groups are used by the dynamic binding process to do the
290 binding (indirectly through the module table and the reference symbol
291 table when this is a dynamically linked shared library file). */
293 unsigned long ilocalsym
; /* Index to local symbols. */
294 unsigned long nlocalsym
; /* Number of local symbols. */
295 unsigned long iextdefsym
; /* Index to externally defined symbols. */
296 unsigned long nextdefsym
; /* Number of externally defined symbols. */
297 unsigned long iundefsym
; /* Index to undefined symbols. */
298 unsigned long nundefsym
; /* Number of undefined symbols. */
300 /* For the for the dynamic binding process to find which module a symbol
301 is defined in the table of contents is used (analogous to the ranlib
302 structure in an archive) which maps defined external symbols to modules
303 they are defined in. This exists only in a dynamically linked shared
304 library file. For executable and object modules the defined external
305 symbols are sorted by name and is use as the table of contents. */
307 unsigned long tocoff
; /* File offset to table of contents. */
308 unsigned long ntoc
; /* Number of entries in table of contents. */
310 /* To support dynamic binding of "modules" (whole object files) the symbol
311 table must reflect the modules that the file was created from. This is
312 done by having a module table that has indexes and counts into the merged
313 tables for each module. The module structure that these two entries
314 refer to is described below. This exists only in a dynamically linked
315 shared library file. For executable and object modules the file only
316 contains one module so everything in the file belongs to the module. */
318 unsigned long modtaboff
; /* File offset to module table. */
319 unsigned long nmodtab
; /* Number of module table entries. */
321 /* To support dynamic module binding the module structure for each module
322 indicates the external references (defined and undefined) each module
323 makes. For each module there is an offset and a count into the
324 reference symbol table for the symbols that the module references.
325 This exists only in a dynamically linked shared library file. For
326 executable and object modules the defined external symbols and the
327 undefined external symbols indicates the external references. */
329 unsigned long extrefsymoff
; /* Offset to referenced symbol table. */
330 unsigned long nextrefsyms
; /* Number of referenced symbol table entries. */
332 /* The sections that contain "symbol pointers" and "routine stubs" have
333 indexes and (implied counts based on the size of the section and fixed
334 size of the entry) into the "indirect symbol" table for each pointer
335 and stub. For every section of these two types the index into the
336 indirect symbol table is stored in the section header in the field
337 reserved1. An indirect symbol table entry is simply a 32bit index into
338 the symbol table to the symbol that the pointer or stub is referring to.
339 The indirect symbol table is ordered to match the entries in the section. */
341 unsigned long indirectsymoff
; /* File offset to the indirect symbol table. */
342 unsigned long nindirectsyms
; /* Number of indirect symbol table entries. */
344 /* To support relocating an individual module in a library file quickly the
345 external relocation entries for each module in the library need to be
346 accessed efficiently. Since the relocation entries can't be accessed
347 through the section headers for a library file they are separated into
348 groups of local and external entries further grouped by module. In this
349 case the presents of this load command who's extreloff, nextrel,
350 locreloff and nlocrel fields are non-zero indicates that the relocation
351 entries of non-merged sections are not referenced through the section
352 structures (and the reloff and nreloc fields in the section headers are
355 Since the relocation entries are not accessed through the section headers
356 this requires the r_address field to be something other than a section
357 offset to identify the item to be relocated. In this case r_address is
358 set to the offset from the vmaddr of the first LC_SEGMENT command.
360 The relocation entries are grouped by module and the module table
361 entries have indexes and counts into them for the group of external
362 relocation entries for that the module.
364 For sections that are merged across modules there must not be any
365 remaining external relocation entries for them (for merged sections
366 remaining relocation entries must be local). */
368 unsigned long extreloff
; /* Offset to external relocation entries. */
369 unsigned long nextrel
; /* Number of external relocation entries. */
371 /* All the local relocation entries are grouped together (they are not
372 grouped by their module since they are only used if the object is moved
373 from it statically link edited address). */
375 unsigned long locreloff
; /* Offset to local relocation entries. */
376 unsigned long nlocrel
; /* Number of local relocation entries. */
378 bfd_mach_o_dylib_module
*dylib_module
;
379 bfd_mach_o_dylib_table_of_content
*dylib_toc
;
380 unsigned int *indirect_syms
;
381 bfd_mach_o_dylib_reference
*ext_refs
;
383 bfd_mach_o_dysymtab_command
;
385 /* An indirect symbol table entry is simply a 32bit index into the symbol table
386 to the symbol that the pointer or stub is refering to. Unless it is for a
387 non-lazy symbol pointer section for a defined symbol which strip(1) has
388 removed. In which case it has the value INDIRECT_SYMBOL_LOCAL. If the
389 symbol was also absolute INDIRECT_SYMBOL_ABS is or'ed with that. */
391 #define BFD_MACH_O_INDIRECT_SYMBOL_LOCAL 0x80000000
392 #define BFD_MACH_O_INDIRECT_SYMBOL_ABS 0x40000000
393 #define BFD_MACH_O_INDIRECT_SYMBOL_SIZE 4
395 /* For LC_TWOLEVEL_HINTS. */
397 typedef struct bfd_mach_o_twolevel_hints_command
399 /* Offset to the hint table. */
402 /* Number of entries in the table. */
405 bfd_mach_o_twolevel_hints_command
;
407 /* For LC_PREBIND_CKSUM. */
409 typedef struct bfd_mach_o_prebind_cksum_command
411 /* Checksum or zero. */
414 bfd_mach_o_prebind_cksum_command
;
416 /* For LC_THREAD or LC_UNIXTHREAD. */
418 typedef struct bfd_mach_o_thread_flavour
420 unsigned long flavour
;
421 unsigned long offset
;
424 bfd_mach_o_thread_flavour
;
426 typedef struct bfd_mach_o_thread_command
428 unsigned long nflavours
;
429 bfd_mach_o_thread_flavour
*flavours
;
432 bfd_mach_o_thread_command
;
434 /* For LC_LOAD_DYLINKER and LC_ID_DYLINKER. */
436 typedef struct bfd_mach_o_dylinker_command
438 unsigned int name_offset
; /* Offset to library's path name. */
441 bfd_mach_o_dylinker_command
;
443 /* For LC_LOAD_DYLIB, LC_LOAD_WEAK_DYLIB, LC_ID_DYLIB
444 or LC_REEXPORT_DYLIB. */
446 typedef struct bfd_mach_o_dylib_command
448 unsigned int name_offset
; /* Offset to library's path name. */
449 unsigned long timestamp
; /* Library's build time stamp. */
450 unsigned long current_version
; /* Library's current version number. */
451 unsigned long compatibility_version
; /* Library's compatibility vers number. */
454 bfd_mach_o_dylib_command
;
456 /* For LC_PREBOUND_DYLIB. */
458 typedef struct bfd_mach_o_prebound_dylib_command
460 unsigned int name_offset
; /* Library's path name. */
461 unsigned int nmodules
; /* Number of modules in library. */
462 unsigned int linked_modules_offset
; /* Bit vector of linked modules. */
465 unsigned char *linked_modules
;
467 bfd_mach_o_prebound_dylib_command
;
471 typedef struct bfd_mach_o_uuid_command
473 unsigned char uuid
[16];
475 bfd_mach_o_uuid_command
;
477 /* For LC_CODE_SIGNATURE or LC_SEGMENT_SPLIT_INFO. */
479 typedef struct bfd_mach_o_linkedit_command
481 unsigned long dataoff
;
482 unsigned long datasize
;
484 bfd_mach_o_linkedit_command
;
486 typedef struct bfd_mach_o_str_command
488 unsigned long stroff
;
489 unsigned long str_len
;
492 bfd_mach_o_str_command
;
494 typedef struct bfd_mach_o_fvmlib_command
496 unsigned int name_offset
;
498 unsigned int minor_version
;
499 unsigned int header_addr
;
501 bfd_mach_o_fvmlib_command
;
503 typedef struct bfd_mach_o_dyld_info_command
505 /* File offset and size to rebase info. */
506 unsigned int rebase_off
;
507 unsigned int rebase_size
;
508 unsigned char *rebase_content
;
510 /* File offset and size of binding info. */
511 unsigned int bind_off
;
512 unsigned int bind_size
;
513 unsigned char *bind_content
;
515 /* File offset and size of weak binding info. */
516 unsigned int weak_bind_off
;
517 unsigned int weak_bind_size
;
518 unsigned char *weak_bind_content
;
520 /* File offset and size of lazy binding info. */
521 unsigned int lazy_bind_off
;
522 unsigned int lazy_bind_size
;
523 unsigned char *lazy_bind_content
;
525 /* File offset and size of export info. */
526 unsigned int export_off
;
527 unsigned int export_size
;
528 unsigned char *export_content
;
530 bfd_mach_o_dyld_info_command
;
532 typedef struct bfd_mach_o_version_min_command
537 bfd_mach_o_version_min_command
;
539 typedef struct bfd_mach_o_encryption_info_command
541 unsigned int cryptoff
;
542 unsigned int cryptsize
;
543 unsigned int cryptid
;
545 bfd_mach_o_encryption_info_command
;
547 typedef struct bfd_mach_o_main_command
549 bfd_uint64_t entryoff
;
550 bfd_uint64_t stacksize
;
552 bfd_mach_o_main_command
;
554 typedef struct bfd_mach_o_source_version_command
562 bfd_mach_o_source_version_command
;
564 typedef struct bfd_mach_o_note_command
570 bfd_mach_o_note_command
;
572 typedef struct bfd_mach_o_build_version_tool
577 bfd_mach_o_build_version_tool
;
579 typedef struct bfd_mach_o_build_version_command
586 bfd_mach_o_build_version_command
;
588 typedef struct bfd_mach_o_load_command
590 /* Next command in the single linked list. */
591 struct bfd_mach_o_load_command
*next
;
593 /* Type and required flag. */
594 bfd_mach_o_load_command_type type
;
595 bfd_boolean type_required
;
597 /* Offset and length in the file. */
603 bfd_mach_o_segment_command segment
;
604 bfd_mach_o_symtab_command symtab
;
605 bfd_mach_o_dysymtab_command dysymtab
;
606 bfd_mach_o_thread_command thread
;
607 bfd_mach_o_dylib_command dylib
;
608 bfd_mach_o_dylinker_command dylinker
;
609 bfd_mach_o_prebound_dylib_command prebound_dylib
;
610 bfd_mach_o_prebind_cksum_command prebind_cksum
;
611 bfd_mach_o_twolevel_hints_command twolevel_hints
;
612 bfd_mach_o_uuid_command uuid
;
613 bfd_mach_o_linkedit_command linkedit
;
614 bfd_mach_o_str_command str
;
615 bfd_mach_o_dyld_info_command dyld_info
;
616 bfd_mach_o_version_min_command version_min
;
617 bfd_mach_o_encryption_info_command encryption_info
;
618 bfd_mach_o_fvmlib_command fvmlib
;
619 bfd_mach_o_main_command main
;
620 bfd_mach_o_source_version_command source_version
;
621 bfd_mach_o_note_command note
;
622 bfd_mach_o_build_version_command build_version
;
625 bfd_mach_o_load_command
;
627 typedef struct mach_o_data_struct
630 bfd_mach_o_header header
;
632 /* File offset of the header. Usually this is 0. */
635 /* Array of load commands (length is given by header.ncmds). */
636 bfd_mach_o_load_command
*first_command
;
637 bfd_mach_o_load_command
*last_command
;
639 /* Flatten array of sections. The array is 0-based. */
640 unsigned long nsects
;
641 bfd_mach_o_section
**sections
;
643 /* Used while writing: current length of the output file. This is used
644 to allocate space in the file. */
647 /* As symtab is referenced by other load command, it is handy to have
648 a direct access to it. Although it is not clearly stated, only one symtab
650 bfd_mach_o_symtab_command
*symtab
;
651 bfd_mach_o_dysymtab_command
*dysymtab
;
653 /* A place to stash dwarf2 info for this bfd. */
654 void *dwarf2_find_line_info
;
656 /* BFD of .dSYM file. */
659 /* Cache of dynamic relocs. */
660 arelent
*dyn_reloc_cache
;
662 bfd_mach_o_data_struct
;
664 typedef struct bfd_mach_o_xlat_name
669 bfd_mach_o_xlat_name
;
671 /* Target specific routines. */
673 #define bfd_mach_o_get_data(abfd) ((abfd)->tdata.mach_o_data)
674 #define bfd_mach_o_get_backend_data(abfd) \
675 ((bfd_mach_o_backend_data*)(abfd)->xvec->backend_data)
677 /* Get the Mach-O header for section SEC. */
678 #define bfd_mach_o_get_mach_o_section(sec) \
679 ((bfd_mach_o_section *)(sec)->used_by_bfd)
681 bfd_boolean
bfd_mach_o_valid (bfd
*);
682 bfd_boolean
bfd_mach_o_mkobject_init (bfd
*);
683 const bfd_target
*bfd_mach_o_object_p (bfd
*);
684 const bfd_target
*bfd_mach_o_core_p (bfd
*);
685 const bfd_target
*bfd_mach_o_fat_archive_p (bfd
*);
686 bfd
*bfd_mach_o_fat_openr_next_archived_file (bfd
*, bfd
*);
687 bfd_boolean
bfd_mach_o_set_arch_mach (bfd
*, enum bfd_architecture
,
689 int bfd_mach_o_lookup_command (bfd
*, bfd_mach_o_load_command_type
, bfd_mach_o_load_command
**);
690 bfd_boolean
bfd_mach_o_new_section_hook (bfd
*, asection
*);
691 bfd_boolean
bfd_mach_o_write_contents (bfd
*);
692 bfd_boolean
bfd_mach_o_bfd_copy_private_symbol_data (bfd
*, asymbol
*,
694 bfd_boolean
bfd_mach_o_bfd_copy_private_section_data (bfd
*, asection
*,
696 bfd_boolean
bfd_mach_o_bfd_copy_private_header_data (bfd
*, bfd
*);
697 bfd_boolean
bfd_mach_o_bfd_set_private_flags (bfd
*, flagword
);
698 bfd_boolean
bfd_mach_o_bfd_print_private_bfd_data (bfd
*, void *);
699 long bfd_mach_o_get_symtab_upper_bound (bfd
*);
700 long bfd_mach_o_canonicalize_symtab (bfd
*, asymbol
**);
701 long bfd_mach_o_get_synthetic_symtab (bfd
*, long, asymbol
**, long,
702 asymbol
**, asymbol
**ret
);
703 long bfd_mach_o_get_reloc_upper_bound (bfd
*, asection
*);
704 long bfd_mach_o_canonicalize_reloc (bfd
*, asection
*, arelent
**, asymbol
**);
705 long bfd_mach_o_get_dynamic_reloc_upper_bound (bfd
*);
706 long bfd_mach_o_canonicalize_dynamic_reloc (bfd
*, arelent
**, asymbol
**);
707 asymbol
*bfd_mach_o_make_empty_symbol (bfd
*);
708 void bfd_mach_o_get_symbol_info (bfd
*, asymbol
*, symbol_info
*);
709 void bfd_mach_o_print_symbol (bfd
*, void *, asymbol
*, bfd_print_symbol_type
);
710 int bfd_mach_o_sizeof_headers (bfd
*, struct bfd_link_info
*);
711 unsigned long bfd_mach_o_stack_addr (enum bfd_mach_o_cpu_type
);
712 int bfd_mach_o_core_fetch_environment (bfd
*, unsigned char **, unsigned int *);
713 char *bfd_mach_o_core_file_failing_command (bfd
*);
714 int bfd_mach_o_core_file_failing_signal (bfd
*);
715 bfd_boolean
bfd_mach_o_core_file_matches_executable_p (bfd
*, bfd
*);
716 bfd
*bfd_mach_o_fat_extract (bfd
*, bfd_format
, const bfd_arch_info_type
*);
717 const bfd_target
*bfd_mach_o_header_p (bfd
*, file_ptr
, bfd_mach_o_filetype
,
718 bfd_mach_o_cpu_type
);
719 bfd_boolean
bfd_mach_o_build_commands (bfd
*);
720 bfd_boolean
bfd_mach_o_set_section_contents (bfd
*, asection
*, const void *,
721 file_ptr
, bfd_size_type
);
722 unsigned int bfd_mach_o_version (bfd
*);
724 unsigned int bfd_mach_o_get_section_type_from_name (bfd
*, const char *);
725 unsigned int bfd_mach_o_get_section_attribute_from_name (const char *);
727 void bfd_mach_o_convert_section_name_to_bfd (bfd
*, const char *, const char *,
728 const char **, flagword
*);
729 bfd_boolean
bfd_mach_o_find_nearest_line (bfd
*, asymbol
**,
731 const char **, const char **,
732 unsigned int *, unsigned int *);
733 #define bfd_mach_o_find_line _bfd_nosymbols_find_line
734 bfd_boolean
bfd_mach_o_close_and_cleanup (bfd
*);
735 bfd_boolean
bfd_mach_o_free_cached_info (bfd
*);
737 unsigned int bfd_mach_o_section_get_nbr_indirect (bfd
*, bfd_mach_o_section
*);
738 unsigned int bfd_mach_o_section_get_entry_size (bfd
*, bfd_mach_o_section
*);
739 bfd_boolean
bfd_mach_o_read_symtab_symbols (bfd
*);
740 bfd_boolean
bfd_mach_o_read_symtab_strtab (bfd
*abfd
);
742 bfd_vma
bfd_mach_o_get_base_address (bfd
*);
744 void bfd_mach_o_swap_in_non_scattered_reloc (bfd
*, bfd_mach_o_reloc_info
*,
746 bfd_boolean
bfd_mach_o_canonicalize_non_scattered_reloc (bfd
*, bfd_mach_o_reloc_info
*, arelent
*, asymbol
**);
747 bfd_boolean
bfd_mach_o_pre_canonicalize_one_reloc (bfd
*, struct mach_o_reloc_info_external
*, bfd_mach_o_reloc_info
*, arelent
*, asymbol
**);
749 /* A placeholder in case we need to suppress emitting the dysymtab for some
750 reason (e.g. compatibility with older system versions). */
751 #define bfd_mach_o_should_emit_dysymtab(x) TRUE
753 extern const bfd_mach_o_xlat_name bfd_mach_o_section_attribute_name
[];
754 extern const bfd_mach_o_xlat_name bfd_mach_o_section_type_name
[];
756 extern const bfd_target mach_o_fat_vec
;
758 /* Interfaces between BFD names and Mach-O names. */
760 typedef struct mach_o_section_name_xlat
762 const char *bfd_name
;
763 const char *mach_o_name
;
765 unsigned int macho_sectype
;
766 unsigned int macho_secattr
;
767 unsigned int sectalign
;
768 } mach_o_section_name_xlat
;
770 typedef struct mach_o_segment_name_xlat
773 const mach_o_section_name_xlat
*sections
;
774 } mach_o_segment_name_xlat
;
776 const mach_o_section_name_xlat
*
777 bfd_mach_o_section_data_for_mach_sect (bfd
*, const char *, const char *);
778 const mach_o_section_name_xlat
*
779 bfd_mach_o_section_data_for_bfd_name (bfd
*, const char *, const char **);
781 typedef struct bfd_mach_o_backend_data
783 enum bfd_architecture arch
;
785 bfd_boolean (*_bfd_mach_o_canonicalize_one_reloc
)
786 (bfd
*, struct mach_o_reloc_info_external
*, arelent
*, asymbol
**, arelent
*);
787 bfd_boolean (*_bfd_mach_o_swap_reloc_out
)(arelent
*, bfd_mach_o_reloc_info
*);
788 bfd_boolean (*_bfd_mach_o_print_thread
)(bfd
*, bfd_mach_o_thread_flavour
*,
790 const mach_o_segment_name_xlat
*segsec_names_xlat
;
791 bfd_boolean (*bfd_mach_o_section_type_valid_for_target
) (unsigned long);
793 bfd_mach_o_backend_data
;
795 /* Values used in symbol.udata.i, to signal that the mach-o-specific data in the
796 symbol are not yet set, or need validation (where this is possible). */
798 #define SYM_MACHO_FIELDS_UNSET ((bfd_vma) -1)
799 #define SYM_MACHO_FIELDS_NOT_VALIDATED ((bfd_vma) -2)
805 #endif /* _BFD_MACH_O_H_ */