1 //===-- llvm/Support/MachO.h - The MachO file format ------------*- C++ -*-===//
3 // The LLVM Compiler Infrastructure
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
10 // This file defines manifest constants for the MachO object file format.
12 //===----------------------------------------------------------------------===//
14 #ifndef LLVM_SUPPORT_MACHO_H
15 #define LLVM_SUPPORT_MACHO_H
17 #include "llvm/Support/Compiler.h"
18 #include "llvm/Support/DataTypes.h"
19 #include "llvm/Support/Host.h"
23 // Enums from <mach-o/loader.h>
25 // Constants for the "magic" field in llvm::MachO::mach_header and
26 // llvm::MachO::mach_header_64
27 MH_MAGIC = 0xFEEDFACEu,
28 MH_CIGAM = 0xCEFAEDFEu,
29 MH_MAGIC_64 = 0xFEEDFACFu,
30 MH_CIGAM_64 = 0xCFFAEDFEu,
31 FAT_MAGIC = 0xCAFEBABEu,
32 FAT_CIGAM = 0xBEBAFECAu
36 // Constants for the "filetype" field in llvm::MachO::mach_header and
37 // llvm::MachO::mach_header_64
52 // Constant bits for the "flags" field in llvm::MachO::mach_header and
53 // llvm::MachO::mach_header_64
54 MH_NOUNDEFS = 0x00000001u,
55 MH_INCRLINK = 0x00000002u,
56 MH_DYLDLINK = 0x00000004u,
57 MH_BINDATLOAD = 0x00000008u,
58 MH_PREBOUND = 0x00000010u,
59 MH_SPLIT_SEGS = 0x00000020u,
60 MH_LAZY_INIT = 0x00000040u,
61 MH_TWOLEVEL = 0x00000080u,
62 MH_FORCE_FLAT = 0x00000100u,
63 MH_NOMULTIDEFS = 0x00000200u,
64 MH_NOFIXPREBINDING = 0x00000400u,
65 MH_PREBINDABLE = 0x00000800u,
66 MH_ALLMODSBOUND = 0x00001000u,
67 MH_SUBSECTIONS_VIA_SYMBOLS = 0x00002000u,
68 MH_CANONICAL = 0x00004000u,
69 MH_WEAK_DEFINES = 0x00008000u,
70 MH_BINDS_TO_WEAK = 0x00010000u,
71 MH_ALLOW_STACK_EXECUTION = 0x00020000u,
72 MH_ROOT_SAFE = 0x00040000u,
73 MH_SETUID_SAFE = 0x00080000u,
74 MH_NO_REEXPORTED_DYLIBS = 0x00100000u,
76 MH_DEAD_STRIPPABLE_DYLIB = 0x00400000u,
77 MH_HAS_TLV_DESCRIPTORS = 0x00800000u,
78 MH_NO_HEAP_EXECUTION = 0x01000000u,
79 MH_APP_EXTENSION_SAFE = 0x02000000u
83 // Flags for the "cmd" field in llvm::MachO::load_command
84 LC_REQ_DYLD = 0x80000000u
87 enum LoadCommandType : uint32_t {
88 // Constants for the "cmd" field in llvm::MachO::load_command
89 LC_SEGMENT = 0x00000001u,
90 LC_SYMTAB = 0x00000002u,
91 LC_SYMSEG = 0x00000003u,
92 LC_THREAD = 0x00000004u,
93 LC_UNIXTHREAD = 0x00000005u,
94 LC_LOADFVMLIB = 0x00000006u,
95 LC_IDFVMLIB = 0x00000007u,
96 LC_IDENT = 0x00000008u,
97 LC_FVMFILE = 0x00000009u,
98 LC_PREPAGE = 0x0000000Au,
99 LC_DYSYMTAB = 0x0000000Bu,
100 LC_LOAD_DYLIB = 0x0000000Cu,
101 LC_ID_DYLIB = 0x0000000Du,
102 LC_LOAD_DYLINKER = 0x0000000Eu,
103 LC_ID_DYLINKER = 0x0000000Fu,
104 LC_PREBOUND_DYLIB = 0x00000010u,
105 LC_ROUTINES = 0x00000011u,
106 LC_SUB_FRAMEWORK = 0x00000012u,
107 LC_SUB_UMBRELLA = 0x00000013u,
108 LC_SUB_CLIENT = 0x00000014u,
109 LC_SUB_LIBRARY = 0x00000015u,
110 LC_TWOLEVEL_HINTS = 0x00000016u,
111 LC_PREBIND_CKSUM = 0x00000017u,
112 LC_LOAD_WEAK_DYLIB = 0x80000018u,
113 LC_SEGMENT_64 = 0x00000019u,
114 LC_ROUTINES_64 = 0x0000001Au,
115 LC_UUID = 0x0000001Bu,
116 LC_RPATH = 0x8000001Cu,
117 LC_CODE_SIGNATURE = 0x0000001Du,
118 LC_SEGMENT_SPLIT_INFO = 0x0000001Eu,
119 LC_REEXPORT_DYLIB = 0x8000001Fu,
120 LC_LAZY_LOAD_DYLIB = 0x00000020u,
121 LC_ENCRYPTION_INFO = 0x00000021u,
122 LC_DYLD_INFO = 0x00000022u,
123 LC_DYLD_INFO_ONLY = 0x80000022u,
124 LC_LOAD_UPWARD_DYLIB = 0x80000023u,
125 LC_VERSION_MIN_MACOSX = 0x00000024u,
126 LC_VERSION_MIN_IPHONEOS = 0x00000025u,
127 LC_FUNCTION_STARTS = 0x00000026u,
128 LC_DYLD_ENVIRONMENT = 0x00000027u,
129 LC_MAIN = 0x80000028u,
130 LC_DATA_IN_CODE = 0x00000029u,
131 LC_SOURCE_VERSION = 0x0000002Au,
132 LC_DYLIB_CODE_SIGN_DRS = 0x0000002Bu,
134 LC_LINKER_OPTIONS = 0x0000002Du,
135 LC_LINKER_OPTIMIZATION_HINT = 0x0000002Eu
139 // Constant bits for the "flags" field in llvm::MachO::segment_command
143 SG_PROTECTED_VERSION_1 = 0x8u,
146 // Constant masks for the "flags" field in llvm::MachO::section and
147 // llvm::MachO::section_64
148 SECTION_TYPE = 0x000000ffu, // SECTION_TYPE
149 SECTION_ATTRIBUTES = 0xffffff00u, // SECTION_ATTRIBUTES
150 SECTION_ATTRIBUTES_USR = 0xff000000u, // SECTION_ATTRIBUTES_USR
151 SECTION_ATTRIBUTES_SYS = 0x00ffff00u // SECTION_ATTRIBUTES_SYS
154 /// These are the section type and attributes fields. A MachO section can
155 /// have only one Type, but can have any of the attributes specified.
156 enum SectionType : uint32_t {
157 // Constant masks for the "flags[7:0]" field in llvm::MachO::section and
158 // llvm::MachO::section_64 (mask "flags" with SECTION_TYPE)
160 /// S_REGULAR - Regular section.
162 /// S_ZEROFILL - Zero fill on demand section.
164 /// S_CSTRING_LITERALS - Section with literal C strings.
165 S_CSTRING_LITERALS = 0x02u,
166 /// S_4BYTE_LITERALS - Section with 4 byte literals.
167 S_4BYTE_LITERALS = 0x03u,
168 /// S_8BYTE_LITERALS - Section with 8 byte literals.
169 S_8BYTE_LITERALS = 0x04u,
170 /// S_LITERAL_POINTERS - Section with pointers to literals.
171 S_LITERAL_POINTERS = 0x05u,
172 /// S_NON_LAZY_SYMBOL_POINTERS - Section with non-lazy symbol pointers.
173 S_NON_LAZY_SYMBOL_POINTERS = 0x06u,
174 /// S_LAZY_SYMBOL_POINTERS - Section with lazy symbol pointers.
175 S_LAZY_SYMBOL_POINTERS = 0x07u,
176 /// S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in
177 /// the Reserved2 field.
178 S_SYMBOL_STUBS = 0x08u,
179 /// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for
181 S_MOD_INIT_FUNC_POINTERS = 0x09u,
182 /// S_MOD_TERM_FUNC_POINTERS - Section with only function pointers for
184 S_MOD_TERM_FUNC_POINTERS = 0x0au,
185 /// S_COALESCED - Section contains symbols that are to be coalesced.
187 /// S_GB_ZEROFILL - Zero fill on demand section (that can be larger than 4
189 S_GB_ZEROFILL = 0x0cu,
190 /// S_INTERPOSING - Section with only pairs of function pointers for
192 S_INTERPOSING = 0x0du,
193 /// S_16BYTE_LITERALS - Section with only 16 byte literals.
194 S_16BYTE_LITERALS = 0x0eu,
195 /// S_DTRACE_DOF - Section contains DTrace Object Format.
196 S_DTRACE_DOF = 0x0fu,
197 /// S_LAZY_DYLIB_SYMBOL_POINTERS - Section with lazy symbol pointers to
198 /// lazy loaded dylibs.
199 S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10u,
200 /// S_THREAD_LOCAL_REGULAR - Thread local data section.
201 S_THREAD_LOCAL_REGULAR = 0x11u,
202 /// S_THREAD_LOCAL_ZEROFILL - Thread local zerofill section.
203 S_THREAD_LOCAL_ZEROFILL = 0x12u,
204 /// S_THREAD_LOCAL_VARIABLES - Section with thread local variable
206 S_THREAD_LOCAL_VARIABLES = 0x13u,
207 /// S_THREAD_LOCAL_VARIABLE_POINTERS - Section with pointers to thread
208 /// local structures.
209 S_THREAD_LOCAL_VARIABLE_POINTERS = 0x14u,
210 /// S_THREAD_LOCAL_INIT_FUNCTION_POINTERS - Section with thread local
211 /// variable initialization pointers to functions.
212 S_THREAD_LOCAL_INIT_FUNCTION_POINTERS = 0x15u,
214 LAST_KNOWN_SECTION_TYPE = S_THREAD_LOCAL_INIT_FUNCTION_POINTERS
218 // Constant masks for the "flags[31:24]" field in llvm::MachO::section and
219 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_USR)
221 /// S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine
223 S_ATTR_PURE_INSTRUCTIONS = 0x80000000u,
224 /// S_ATTR_NO_TOC - Section contains coalesced symbols that are not to be
225 /// in a ranlib table of contents.
226 S_ATTR_NO_TOC = 0x40000000u,
227 /// S_ATTR_STRIP_STATIC_SYMS - Ok to strip static symbols in this section
228 /// in files with the MY_DYLDLINK flag.
229 S_ATTR_STRIP_STATIC_SYMS = 0x20000000u,
230 /// S_ATTR_NO_DEAD_STRIP - No dead stripping.
231 S_ATTR_NO_DEAD_STRIP = 0x10000000u,
232 /// S_ATTR_LIVE_SUPPORT - Blocks are live if they reference live blocks.
233 S_ATTR_LIVE_SUPPORT = 0x08000000u,
234 /// S_ATTR_SELF_MODIFYING_CODE - Used with i386 code stubs written on by
236 S_ATTR_SELF_MODIFYING_CODE = 0x04000000u,
237 /// S_ATTR_DEBUG - A debug section.
238 S_ATTR_DEBUG = 0x02000000u,
240 // Constant masks for the "flags[23:8]" field in llvm::MachO::section and
241 // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_SYS)
243 /// S_ATTR_SOME_INSTRUCTIONS - Section contains some machine instructions.
244 S_ATTR_SOME_INSTRUCTIONS = 0x00000400u,
245 /// S_ATTR_EXT_RELOC - Section has external relocation entries.
246 S_ATTR_EXT_RELOC = 0x00000200u,
247 /// S_ATTR_LOC_RELOC - Section has local relocation entries.
248 S_ATTR_LOC_RELOC = 0x00000100u,
250 // Constant masks for the value of an indirect symbol in an indirect
252 INDIRECT_SYMBOL_LOCAL = 0x80000000u,
253 INDIRECT_SYMBOL_ABS = 0x40000000u
256 enum DataRegionType {
257 // Constants for the "kind" field in a data_in_code_entry structure
259 DICE_KIND_JUMP_TABLE8 = 2u,
260 DICE_KIND_JUMP_TABLE16 = 3u,
261 DICE_KIND_JUMP_TABLE32 = 4u,
262 DICE_KIND_ABS_JUMP_TABLE32 = 5u
266 REBASE_TYPE_POINTER = 1u,
267 REBASE_TYPE_TEXT_ABSOLUTE32 = 2u,
268 REBASE_TYPE_TEXT_PCREL32 = 3u
272 REBASE_OPCODE_MASK = 0xF0u,
273 REBASE_IMMEDIATE_MASK = 0x0Fu
277 REBASE_OPCODE_DONE = 0x00u,
278 REBASE_OPCODE_SET_TYPE_IMM = 0x10u,
279 REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x20u,
280 REBASE_OPCODE_ADD_ADDR_ULEB = 0x30u,
281 REBASE_OPCODE_ADD_ADDR_IMM_SCALED = 0x40u,
282 REBASE_OPCODE_DO_REBASE_IMM_TIMES = 0x50u,
283 REBASE_OPCODE_DO_REBASE_ULEB_TIMES = 0x60u,
284 REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB = 0x70u,
285 REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB = 0x80u
289 BIND_TYPE_POINTER = 1u,
290 BIND_TYPE_TEXT_ABSOLUTE32 = 2u,
291 BIND_TYPE_TEXT_PCREL32 = 3u
294 enum BindSpecialDylib {
295 BIND_SPECIAL_DYLIB_SELF = 0,
296 BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE = -1,
297 BIND_SPECIAL_DYLIB_FLAT_LOOKUP = -2
301 BIND_SYMBOL_FLAGS_WEAK_IMPORT = 0x1u,
302 BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION = 0x8u,
304 BIND_OPCODE_MASK = 0xF0u,
305 BIND_IMMEDIATE_MASK = 0x0Fu
309 BIND_OPCODE_DONE = 0x00u,
310 BIND_OPCODE_SET_DYLIB_ORDINAL_IMM = 0x10u,
311 BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB = 0x20u,
312 BIND_OPCODE_SET_DYLIB_SPECIAL_IMM = 0x30u,
313 BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM = 0x40u,
314 BIND_OPCODE_SET_TYPE_IMM = 0x50u,
315 BIND_OPCODE_SET_ADDEND_SLEB = 0x60u,
316 BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x70u,
317 BIND_OPCODE_ADD_ADDR_ULEB = 0x80u,
318 BIND_OPCODE_DO_BIND = 0x90u,
319 BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB = 0xA0u,
320 BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED = 0xB0u,
321 BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB = 0xC0u
325 EXPORT_SYMBOL_FLAGS_KIND_MASK = 0x03u,
326 EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION = 0x04u,
327 EXPORT_SYMBOL_FLAGS_REEXPORT = 0x08u,
328 EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER = 0x10u
331 enum ExportSymbolKind {
332 EXPORT_SYMBOL_FLAGS_KIND_REGULAR = 0x00u,
333 EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL = 0x01u
338 // Constant masks for the "n_type" field in llvm::MachO::nlist and
339 // llvm::MachO::nlist_64
347 // Constants for the "n_type & N_TYPE" llvm::MachO::nlist and
348 // llvm::MachO::nlist_64
356 enum SectionOrdinal {
357 // Constants for the "n_sect" field in llvm::MachO::nlist and
358 // llvm::MachO::nlist_64
364 // Constant masks for the "n_desc" field in llvm::MachO::nlist and
365 // llvm::MachO::nlist_64
366 // The low 3 bits are the for the REFERENCE_TYPE.
367 REFERENCE_TYPE = 0x7,
368 REFERENCE_FLAG_UNDEFINED_NON_LAZY = 0,
369 REFERENCE_FLAG_UNDEFINED_LAZY = 1,
370 REFERENCE_FLAG_DEFINED = 2,
371 REFERENCE_FLAG_PRIVATE_DEFINED = 3,
372 REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY = 4,
373 REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY = 5,
374 // Flag bits (some overlap with the library ordinal bits).
375 N_ARM_THUMB_DEF = 0x0008u,
376 REFERENCED_DYNAMICALLY = 0x0010u,
377 N_NO_DEAD_STRIP = 0x0020u,
378 N_WEAK_REF = 0x0040u,
379 N_WEAK_DEF = 0x0080u,
380 N_SYMBOL_RESOLVER = 0x0100u,
381 N_ALT_ENTRY = 0x0200u,
382 // For undefined symbols coming from libraries, see GET_LIBRARY_ORDINAL()
383 // as these are in the top 8 bits.
384 SELF_LIBRARY_ORDINAL = 0x0,
385 MAX_LIBRARY_ORDINAL = 0xfd,
386 DYNAMIC_LOOKUP_ORDINAL = 0xfe,
387 EXECUTABLE_ORDINAL = 0xff
391 // Constant values for the "n_type" field in llvm::MachO::nlist and
392 // llvm::MachO::nlist_64 when "(n_type & N_STAB) != 0"
427 // Constant values for the r_symbolnum field in an
428 // llvm::MachO::relocation_info structure when r_extern is 0.
431 // Constant bits for the r_address field in an
432 // llvm::MachO::relocation_info structure.
433 R_SCATTERED = 0x80000000
436 enum RelocationInfoType {
437 // Constant values for the r_type field in an
438 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
440 GENERIC_RELOC_VANILLA = 0,
441 GENERIC_RELOC_PAIR = 1,
442 GENERIC_RELOC_SECTDIFF = 2,
443 GENERIC_RELOC_PB_LA_PTR = 3,
444 GENERIC_RELOC_LOCAL_SECTDIFF = 4,
445 GENERIC_RELOC_TLV = 5,
447 // Constant values for the r_type field in a PowerPC architecture
448 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
450 PPC_RELOC_VANILLA = GENERIC_RELOC_VANILLA,
451 PPC_RELOC_PAIR = GENERIC_RELOC_PAIR,
458 PPC_RELOC_SECTDIFF = 8,
459 PPC_RELOC_PB_LA_PTR = 9,
460 PPC_RELOC_HI16_SECTDIFF = 10,
461 PPC_RELOC_LO16_SECTDIFF = 11,
462 PPC_RELOC_HA16_SECTDIFF = 12,
464 PPC_RELOC_LO14_SECTDIFF = 14,
465 PPC_RELOC_LOCAL_SECTDIFF = 15,
467 // Constant values for the r_type field in an ARM architecture
468 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
470 ARM_RELOC_VANILLA = GENERIC_RELOC_VANILLA,
471 ARM_RELOC_PAIR = GENERIC_RELOC_PAIR,
472 ARM_RELOC_SECTDIFF = GENERIC_RELOC_SECTDIFF,
473 ARM_RELOC_LOCAL_SECTDIFF = 3,
474 ARM_RELOC_PB_LA_PTR = 4,
476 ARM_THUMB_RELOC_BR22 = 6,
477 ARM_THUMB_32BIT_BRANCH = 7, // obsolete
479 ARM_RELOC_HALF_SECTDIFF = 9,
481 // Constant values for the r_type field in an ARM64 architecture
482 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
486 ARM64_RELOC_UNSIGNED = 0,
487 // Must be followed by an ARM64_RELOC_UNSIGNED
488 ARM64_RELOC_SUBTRACTOR = 1,
489 // A B/BL instruction with 26-bit displacement.
490 ARM64_RELOC_BRANCH26 = 2,
491 // PC-rel distance to page of target.
492 ARM64_RELOC_PAGE21 = 3,
493 // Offset within page, scaled by r_length.
494 ARM64_RELOC_PAGEOFF12 = 4,
495 // PC-rel distance to page of GOT slot.
496 ARM64_RELOC_GOT_LOAD_PAGE21 = 5,
497 // Offset within page of GOT slot, scaled by r_length.
498 ARM64_RELOC_GOT_LOAD_PAGEOFF12 = 6,
499 // For pointers to GOT slots.
500 ARM64_RELOC_POINTER_TO_GOT = 7,
501 // PC-rel distance to page of TLVP slot.
502 ARM64_RELOC_TLVP_LOAD_PAGE21 = 8,
503 // Offset within page of TLVP slot, scaled by r_length.
504 ARM64_RELOC_TLVP_LOAD_PAGEOFF12 = 9,
505 // Must be followed by ARM64_RELOC_PAGE21 or ARM64_RELOC_PAGEOFF12.
506 ARM64_RELOC_ADDEND = 10,
509 // Constant values for the r_type field in an x86_64 architecture
510 // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
512 X86_64_RELOC_UNSIGNED = 0,
513 X86_64_RELOC_SIGNED = 1,
514 X86_64_RELOC_BRANCH = 2,
515 X86_64_RELOC_GOT_LOAD = 3,
516 X86_64_RELOC_GOT = 4,
517 X86_64_RELOC_SUBTRACTOR = 5,
518 X86_64_RELOC_SIGNED_1 = 6,
519 X86_64_RELOC_SIGNED_2 = 7,
520 X86_64_RELOC_SIGNED_4 = 8,
524 // Values for segment_command.initprot.
525 // From <mach/vm_prot.h>
529 VM_PROT_EXECUTE = 0x4
533 // Structs from <mach-o/loader.h>
545 struct mach_header_64 {
556 struct load_command {
561 struct segment_command {
575 struct segment_command_64 {
620 uint32_t minor_version;
621 uint32_t header_addr;
624 struct fvmlib_command {
627 struct fvmlib fvmlib;
633 uint32_t current_version;
634 uint32_t compatibility_version;
637 struct dylib_command {
643 struct sub_framework_command {
649 struct sub_client_command {
655 struct sub_umbrella_command {
658 uint32_t sub_umbrella;
661 struct sub_library_command {
664 uint32_t sub_library;
667 struct prebound_dylib_command {
672 uint32_t linked_modules;
675 struct dylinker_command {
681 struct thread_command {
686 struct routines_command {
689 uint32_t init_address;
690 uint32_t init_module;
699 struct routines_command_64 {
702 uint64_t init_address;
703 uint64_t init_module;
712 struct symtab_command {
721 struct dysymtab_command {
734 uint32_t extrefsymoff;
735 uint32_t nextrefsyms;
736 uint32_t indirectsymoff;
737 uint32_t nindirectsyms;
744 struct dylib_table_of_contents {
745 uint32_t symbol_index;
746 uint32_t module_index;
749 struct dylib_module {
750 uint32_t module_name;
759 uint32_t iinit_iterm;
760 uint32_t ninit_nterm;
761 uint32_t objc_module_info_addr;
762 uint32_t objc_module_info_size;
765 struct dylib_module_64 {
766 uint32_t module_name;
775 uint32_t iinit_iterm;
776 uint32_t ninit_nterm;
777 uint32_t objc_module_info_size;
778 uint64_t objc_module_info_addr;
781 struct dylib_reference {
787 struct twolevel_hints_command {
794 struct twolevel_hint {
795 uint32_t isub_image:8,
799 struct prebind_cksum_command {
805 struct uuid_command {
811 struct rpath_command {
817 struct linkedit_data_command {
824 struct data_in_code_entry {
830 struct source_version_command {
836 struct encryption_info_command {
844 struct version_min_command {
845 uint32_t cmd; // LC_VERSION_MIN_MACOSX or
846 // LC_VERSION_MIN_IPHONEOS
847 uint32_t cmdsize; // sizeof(struct version_min_command)
848 uint32_t version; // X.Y.Z is encoded in nibbles xxxx.yy.zz
852 struct dyld_info_command {
856 uint32_t rebase_size;
859 uint32_t weak_bind_off;
860 uint32_t weak_bind_size;
861 uint32_t lazy_bind_off;
862 uint32_t lazy_bind_size;
864 uint32_t export_size;
867 struct linker_options_command {
873 struct symseg_command {
880 struct ident_command {
885 struct fvmfile_command {
889 uint32_t header_addr;
892 struct tlv_descriptor_32 {
898 struct tlv_descriptor_64 {
904 struct tlv_descriptor {
910 struct entry_point_command {
918 // Structs from <mach-o/fat.h>
932 // Structs from <mach-o/reloc.h>
933 struct relocation_info {
935 uint32_t r_symbolnum:24,
942 struct scattered_relocation_info {
943 #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && (BYTE_ORDER == BIG_ENDIAN)
944 uint32_t r_scattered:1,
950 uint32_t r_address:24,
959 // Structs NOT from <mach-o/reloc.h>, but that make LLVM's life easier
960 struct any_relocation_info {
961 uint32_t r_word0, r_word1;
964 // Structs from <mach-o/nlist.h>
989 // Byte order swapping functions for MachO structs
991 inline void swapStruct(mach_header &mh) {
992 sys::swapByteOrder(mh.magic);
993 sys::swapByteOrder(mh.cputype);
994 sys::swapByteOrder(mh.cpusubtype);
995 sys::swapByteOrder(mh.filetype);
996 sys::swapByteOrder(mh.ncmds);
997 sys::swapByteOrder(mh.sizeofcmds);
998 sys::swapByteOrder(mh.flags);
1001 inline void swapStruct(mach_header_64 &H) {
1002 sys::swapByteOrder(H.magic);
1003 sys::swapByteOrder(H.cputype);
1004 sys::swapByteOrder(H.cpusubtype);
1005 sys::swapByteOrder(H.filetype);
1006 sys::swapByteOrder(H.ncmds);
1007 sys::swapByteOrder(H.sizeofcmds);
1008 sys::swapByteOrder(H.flags);
1009 sys::swapByteOrder(H.reserved);
1012 inline void swapStruct(load_command &lc) {
1013 sys::swapByteOrder(lc.cmd);
1014 sys::swapByteOrder(lc.cmdsize);
1017 inline void swapStruct(symtab_command &lc) {
1018 sys::swapByteOrder(lc.cmd);
1019 sys::swapByteOrder(lc.cmdsize);
1020 sys::swapByteOrder(lc.symoff);
1021 sys::swapByteOrder(lc.nsyms);
1022 sys::swapByteOrder(lc.stroff);
1023 sys::swapByteOrder(lc.strsize);
1026 inline void swapStruct(segment_command_64 &seg) {
1027 sys::swapByteOrder(seg.cmd);
1028 sys::swapByteOrder(seg.cmdsize);
1029 sys::swapByteOrder(seg.vmaddr);
1030 sys::swapByteOrder(seg.vmsize);
1031 sys::swapByteOrder(seg.fileoff);
1032 sys::swapByteOrder(seg.filesize);
1033 sys::swapByteOrder(seg.maxprot);
1034 sys::swapByteOrder(seg.initprot);
1035 sys::swapByteOrder(seg.nsects);
1036 sys::swapByteOrder(seg.flags);
1039 inline void swapStruct(segment_command &seg) {
1040 sys::swapByteOrder(seg.cmd);
1041 sys::swapByteOrder(seg.cmdsize);
1042 sys::swapByteOrder(seg.vmaddr);
1043 sys::swapByteOrder(seg.vmsize);
1044 sys::swapByteOrder(seg.fileoff);
1045 sys::swapByteOrder(seg.filesize);
1046 sys::swapByteOrder(seg.maxprot);
1047 sys::swapByteOrder(seg.initprot);
1048 sys::swapByteOrder(seg.nsects);
1049 sys::swapByteOrder(seg.flags);
1052 inline void swapStruct(section_64 §) {
1053 sys::swapByteOrder(sect.addr);
1054 sys::swapByteOrder(sect.size);
1055 sys::swapByteOrder(sect.offset);
1056 sys::swapByteOrder(sect.align);
1057 sys::swapByteOrder(sect.reloff);
1058 sys::swapByteOrder(sect.nreloc);
1059 sys::swapByteOrder(sect.flags);
1060 sys::swapByteOrder(sect.reserved1);
1061 sys::swapByteOrder(sect.reserved2);
1064 inline void swapStruct(section §) {
1065 sys::swapByteOrder(sect.addr);
1066 sys::swapByteOrder(sect.size);
1067 sys::swapByteOrder(sect.offset);
1068 sys::swapByteOrder(sect.align);
1069 sys::swapByteOrder(sect.reloff);
1070 sys::swapByteOrder(sect.nreloc);
1071 sys::swapByteOrder(sect.flags);
1072 sys::swapByteOrder(sect.reserved1);
1073 sys::swapByteOrder(sect.reserved2);
1076 inline void swapStruct(dyld_info_command &info) {
1077 sys::swapByteOrder(info.cmd);
1078 sys::swapByteOrder(info.cmdsize);
1079 sys::swapByteOrder(info.rebase_off);
1080 sys::swapByteOrder(info.rebase_size);
1081 sys::swapByteOrder(info.bind_off);
1082 sys::swapByteOrder(info.bind_size);
1083 sys::swapByteOrder(info.weak_bind_off);
1084 sys::swapByteOrder(info.weak_bind_size);
1085 sys::swapByteOrder(info.lazy_bind_off);
1086 sys::swapByteOrder(info.lazy_bind_size);
1087 sys::swapByteOrder(info.export_off);
1088 sys::swapByteOrder(info.export_size);
1091 inline void swapStruct(dylib_command &d) {
1092 sys::swapByteOrder(d.cmd);
1093 sys::swapByteOrder(d.cmdsize);
1094 sys::swapByteOrder(d.dylib.name);
1095 sys::swapByteOrder(d.dylib.timestamp);
1096 sys::swapByteOrder(d.dylib.current_version);
1097 sys::swapByteOrder(d.dylib.compatibility_version);
1100 inline void swapStruct(dylinker_command &d) {
1101 sys::swapByteOrder(d.cmd);
1102 sys::swapByteOrder(d.cmdsize);
1103 sys::swapByteOrder(d.name);
1106 inline void swapStruct(entry_point_command &e) {
1107 sys::swapByteOrder(e.cmd);
1108 sys::swapByteOrder(e.cmdsize);
1109 sys::swapByteOrder(e.entryoff);
1110 sys::swapByteOrder(e.stacksize);
1113 inline void swapStruct(dysymtab_command &dst) {
1114 sys::swapByteOrder(dst.cmd);
1115 sys::swapByteOrder(dst.cmdsize);
1116 sys::swapByteOrder(dst.ilocalsym);
1117 sys::swapByteOrder(dst.nlocalsym);
1118 sys::swapByteOrder(dst.iextdefsym);
1119 sys::swapByteOrder(dst.nextdefsym);
1120 sys::swapByteOrder(dst.iundefsym);
1121 sys::swapByteOrder(dst.nundefsym);
1122 sys::swapByteOrder(dst.tocoff);
1123 sys::swapByteOrder(dst.ntoc);
1124 sys::swapByteOrder(dst.modtaboff);
1125 sys::swapByteOrder(dst.nmodtab);
1126 sys::swapByteOrder(dst.extrefsymoff);
1127 sys::swapByteOrder(dst.nextrefsyms);
1128 sys::swapByteOrder(dst.indirectsymoff);
1129 sys::swapByteOrder(dst.nindirectsyms);
1130 sys::swapByteOrder(dst.extreloff);
1131 sys::swapByteOrder(dst.nextrel);
1132 sys::swapByteOrder(dst.locreloff);
1133 sys::swapByteOrder(dst.nlocrel);
1136 inline void swapStruct(any_relocation_info &reloc) {
1137 sys::swapByteOrder(reloc.r_word0);
1138 sys::swapByteOrder(reloc.r_word1);
1141 inline void swapStruct(nlist_base &S) {
1142 sys::swapByteOrder(S.n_strx);
1143 sys::swapByteOrder(S.n_desc);
1146 inline void swapStruct(nlist &sym) {
1147 sys::swapByteOrder(sym.n_strx);
1148 sys::swapByteOrder(sym.n_desc);
1149 sys::swapByteOrder(sym.n_value);
1152 inline void swapStruct(nlist_64 &sym) {
1153 sys::swapByteOrder(sym.n_strx);
1154 sys::swapByteOrder(sym.n_desc);
1155 sys::swapByteOrder(sym.n_value);
1158 inline void swapStruct(linkedit_data_command &C) {
1159 sys::swapByteOrder(C.cmd);
1160 sys::swapByteOrder(C.cmdsize);
1161 sys::swapByteOrder(C.dataoff);
1162 sys::swapByteOrder(C.datasize);
1165 inline void swapStruct(linker_options_command &C) {
1166 sys::swapByteOrder(C.cmd);
1167 sys::swapByteOrder(C.cmdsize);
1168 sys::swapByteOrder(C.count);
1171 inline void swapStruct(version_min_command&C) {
1172 sys::swapByteOrder(C.cmd);
1173 sys::swapByteOrder(C.cmdsize);
1174 sys::swapByteOrder(C.version);
1175 sys::swapByteOrder(C.reserved);
1178 inline void swapStruct(data_in_code_entry &C) {
1179 sys::swapByteOrder(C.offset);
1180 sys::swapByteOrder(C.length);
1181 sys::swapByteOrder(C.kind);
1184 inline void swapStruct(uint32_t &C) {
1185 sys::swapByteOrder(C);
1188 // Get/Set functions from <mach-o/nlist.h>
1190 static inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) {
1191 return (((n_desc) >> 8u) & 0xffu);
1194 static inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) {
1195 n_desc = (((n_desc) & 0x00ff) | (((ordinal) & 0xff) << 8));
1198 static inline uint8_t GET_COMM_ALIGN (uint16_t n_desc) {
1199 return (n_desc >> 8u) & 0x0fu;
1202 static inline void SET_COMM_ALIGN (uint16_t &n_desc, uint8_t align) {
1203 n_desc = ((n_desc & 0xf0ffu) | ((align & 0x0fu) << 8u));
1206 // Enums from <mach/machine.h>
1208 // Capability bits used in the definition of cpu_type.
1209 CPU_ARCH_MASK = 0xff000000, // Mask for architecture bits
1210 CPU_ARCH_ABI64 = 0x01000000 // 64 bit ABI
1213 // Constants for the cputype field.
1217 CPU_TYPE_I386 = CPU_TYPE_X86,
1218 CPU_TYPE_X86_64 = CPU_TYPE_X86 | CPU_ARCH_ABI64,
1219 /* CPU_TYPE_MIPS = 8, */
1220 CPU_TYPE_MC98000 = 10, // Old Motorola PowerPC
1222 CPU_TYPE_ARM64 = CPU_TYPE_ARM | CPU_ARCH_ABI64,
1223 CPU_TYPE_SPARC = 14,
1224 CPU_TYPE_POWERPC = 18,
1225 CPU_TYPE_POWERPC64 = CPU_TYPE_POWERPC | CPU_ARCH_ABI64
1229 // Capability bits used in the definition of cpusubtype.
1230 CPU_SUBTYPE_MASK = 0xff000000, // Mask for architecture bits
1231 CPU_SUBTYPE_LIB64 = 0x80000000, // 64 bit libraries
1233 // Special CPU subtype constants.
1234 CPU_SUBTYPE_MULTIPLE = ~0u
1237 // Constants for the cpusubtype field.
1238 enum CPUSubTypeX86 {
1239 CPU_SUBTYPE_I386_ALL = 3,
1240 CPU_SUBTYPE_386 = 3,
1241 CPU_SUBTYPE_486 = 4,
1242 CPU_SUBTYPE_486SX = 0x84,
1243 CPU_SUBTYPE_586 = 5,
1244 CPU_SUBTYPE_PENT = CPU_SUBTYPE_586,
1245 CPU_SUBTYPE_PENTPRO = 0x16,
1246 CPU_SUBTYPE_PENTII_M3 = 0x36,
1247 CPU_SUBTYPE_PENTII_M5 = 0x56,
1248 CPU_SUBTYPE_CELERON = 0x67,
1249 CPU_SUBTYPE_CELERON_MOBILE = 0x77,
1250 CPU_SUBTYPE_PENTIUM_3 = 0x08,
1251 CPU_SUBTYPE_PENTIUM_3_M = 0x18,
1252 CPU_SUBTYPE_PENTIUM_3_XEON = 0x28,
1253 CPU_SUBTYPE_PENTIUM_M = 0x09,
1254 CPU_SUBTYPE_PENTIUM_4 = 0x0a,
1255 CPU_SUBTYPE_PENTIUM_4_M = 0x1a,
1256 CPU_SUBTYPE_ITANIUM = 0x0b,
1257 CPU_SUBTYPE_ITANIUM_2 = 0x1b,
1258 CPU_SUBTYPE_XEON = 0x0c,
1259 CPU_SUBTYPE_XEON_MP = 0x1c,
1261 CPU_SUBTYPE_X86_ALL = 3,
1262 CPU_SUBTYPE_X86_64_ALL = 3,
1263 CPU_SUBTYPE_X86_ARCH1 = 4,
1264 CPU_SUBTYPE_X86_64_H = 8
1266 static inline int CPU_SUBTYPE_INTEL(int Family, int Model) {
1267 return Family | (Model << 4);
1269 static inline int CPU_SUBTYPE_INTEL_FAMILY(CPUSubTypeX86 ST) {
1270 return ((int)ST) & 0x0f;
1272 static inline int CPU_SUBTYPE_INTEL_MODEL(CPUSubTypeX86 ST) {
1273 return ((int)ST) >> 4;
1276 CPU_SUBTYPE_INTEL_FAMILY_MAX = 15,
1277 CPU_SUBTYPE_INTEL_MODEL_ALL = 0
1280 enum CPUSubTypeARM {
1281 CPU_SUBTYPE_ARM_ALL = 0,
1282 CPU_SUBTYPE_ARM_V4T = 5,
1283 CPU_SUBTYPE_ARM_V6 = 6,
1284 CPU_SUBTYPE_ARM_V5 = 7,
1285 CPU_SUBTYPE_ARM_V5TEJ = 7,
1286 CPU_SUBTYPE_ARM_XSCALE = 8,
1287 CPU_SUBTYPE_ARM_V7 = 9,
1288 // unused ARM_V7F = 10,
1289 CPU_SUBTYPE_ARM_V7S = 11,
1290 CPU_SUBTYPE_ARM_V7K = 12,
1291 CPU_SUBTYPE_ARM_V6M = 14,
1292 CPU_SUBTYPE_ARM_V7M = 15,
1293 CPU_SUBTYPE_ARM_V7EM = 16
1296 enum CPUSubTypeARM64 {
1297 CPU_SUBTYPE_ARM64_ALL = 0
1300 enum CPUSubTypeSPARC {
1301 CPU_SUBTYPE_SPARC_ALL = 0
1304 enum CPUSubTypePowerPC {
1305 CPU_SUBTYPE_POWERPC_ALL = 0,
1306 CPU_SUBTYPE_POWERPC_601 = 1,
1307 CPU_SUBTYPE_POWERPC_602 = 2,
1308 CPU_SUBTYPE_POWERPC_603 = 3,
1309 CPU_SUBTYPE_POWERPC_603e = 4,
1310 CPU_SUBTYPE_POWERPC_603ev = 5,
1311 CPU_SUBTYPE_POWERPC_604 = 6,
1312 CPU_SUBTYPE_POWERPC_604e = 7,
1313 CPU_SUBTYPE_POWERPC_620 = 8,
1314 CPU_SUBTYPE_POWERPC_750 = 9,
1315 CPU_SUBTYPE_POWERPC_7400 = 10,
1316 CPU_SUBTYPE_POWERPC_7450 = 11,
1317 CPU_SUBTYPE_POWERPC_970 = 100,
1319 CPU_SUBTYPE_MC980000_ALL = CPU_SUBTYPE_POWERPC_ALL,
1320 CPU_SUBTYPE_MC98601 = CPU_SUBTYPE_POWERPC_601
1322 } // end namespace MachO
1323 } // end namespace llvm