1 /* Mach-O support for BFD.
2    Copyright (C) 2011-2016 Free Software Foundation, Inc.
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
8    the Free Software Foundation; either version 3 of the License, or
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
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.  */
20 
21 #ifndef _MACH_O_LOADER_H
22 #define _MACH_O_LOADER_H
23 
24 /* Constants for header. */
25 
26 typedef enum bfd_mach_o_mach_header_magic
27 {
28   BFD_MACH_O_MH_MAGIC    = 0xfeedface,
29   BFD_MACH_O_MH_CIGAM    = 0xcefaedfe,
30   BFD_MACH_O_MH_MAGIC_64 = 0xfeedfacf,
31   BFD_MACH_O_MH_CIGAM_64 = 0xcffaedfe
32 }
33 bfd_mach_o_mach_header_magic;
34 
35 /* Capability bits in cpu type.  */
36 #define BFD_MACH_O_CPU_ARCH_MASK  0xff000000
37 #define BFD_MACH_O_CPU_ARCH_ABI64 0x01000000
38 #define BFD_MACH_O_CPU_IS64BIT    0x01000000
39 
40 typedef enum bfd_mach_o_cpu_type
41 {
42   BFD_MACH_O_CPU_TYPE_VAX = 1,
43   BFD_MACH_O_CPU_TYPE_MC680x0 = 6,
44   BFD_MACH_O_CPU_TYPE_I386 = 7,
45   BFD_MACH_O_CPU_TYPE_MIPS = 8,
46   BFD_MACH_O_CPU_TYPE_MC98000 = 10,
47   BFD_MACH_O_CPU_TYPE_HPPA = 11,
48   BFD_MACH_O_CPU_TYPE_ARM = 12,
49   BFD_MACH_O_CPU_TYPE_MC88000 = 13,
50   BFD_MACH_O_CPU_TYPE_SPARC = 14,
51   BFD_MACH_O_CPU_TYPE_I860 = 15,
52   BFD_MACH_O_CPU_TYPE_ALPHA = 16,
53   BFD_MACH_O_CPU_TYPE_POWERPC = 18,
54   BFD_MACH_O_CPU_TYPE_POWERPC_64 =
55     (BFD_MACH_O_CPU_TYPE_POWERPC | BFD_MACH_O_CPU_IS64BIT),
56   BFD_MACH_O_CPU_TYPE_X86_64 =
57     (BFD_MACH_O_CPU_TYPE_I386 | BFD_MACH_O_CPU_IS64BIT),
58   BFD_MACH_O_CPU_TYPE_ARM64 =
59     (BFD_MACH_O_CPU_TYPE_ARM | BFD_MACH_O_CPU_IS64BIT)
60 }
61 bfd_mach_o_cpu_type;
62 
63 /* Capability bits in cpu subtype.  */
64 #define BFD_MACH_O_CPU_SUBTYPE_MASK  0xff000000
65 #define BFD_MACH_O_CPU_SUBTYPE_LIB64 0x80000000
66 
67 typedef enum bfd_mach_o_cpu_subtype
68 {
69   /* i386.  */
70   BFD_MACH_O_CPU_SUBTYPE_X86_ALL = 3,
71 
72   /* arm.  */
73   BFD_MACH_O_CPU_SUBTYPE_ARM_ALL = 0,
74   BFD_MACH_O_CPU_SUBTYPE_ARM_V4T = 5,
75   BFD_MACH_O_CPU_SUBTYPE_ARM_V6 = 6,
76   BFD_MACH_O_CPU_SUBTYPE_ARM_V5TEJ = 7,
77   BFD_MACH_O_CPU_SUBTYPE_ARM_XSCALE = 8,
78   BFD_MACH_O_CPU_SUBTYPE_ARM_V7 = 9,
79 
80   /* arm64.  */
81   BFD_MACH_O_CPU_SUBTYPE_ARM64_ALL = 0,
82   BFD_MACH_O_CPU_SUBTYPE_ARM64_V8 = 1
83 }
84 bfd_mach_o_cpu_subtype;
85 
86 typedef enum bfd_mach_o_filetype
87 {
88   BFD_MACH_O_MH_OBJECT      = 0x01,
89   BFD_MACH_O_MH_EXECUTE     = 0x02,
90   BFD_MACH_O_MH_FVMLIB      = 0x03,
91   BFD_MACH_O_MH_CORE        = 0x04,
92   BFD_MACH_O_MH_PRELOAD     = 0x05,
93   BFD_MACH_O_MH_DYLIB       = 0x06,
94   BFD_MACH_O_MH_DYLINKER    = 0x07,
95   BFD_MACH_O_MH_BUNDLE      = 0x08,
96   BFD_MACH_O_MH_DYLIB_STUB  = 0x09,
97   BFD_MACH_O_MH_DSYM        = 0x0a,
98   BFD_MACH_O_MH_KEXT_BUNDLE = 0x0b
99 }
100 bfd_mach_o_filetype;
101 
102 typedef enum bfd_mach_o_header_flags
103 {
104   BFD_MACH_O_MH_NOUNDEFS		= 0x0000001,
105   BFD_MACH_O_MH_INCRLINK		= 0x0000002,
106   BFD_MACH_O_MH_DYLDLINK		= 0x0000004,
107   BFD_MACH_O_MH_BINDATLOAD		= 0x0000008,
108   BFD_MACH_O_MH_PREBOUND		= 0x0000010,
109   BFD_MACH_O_MH_SPLIT_SEGS		= 0x0000020,
110   BFD_MACH_O_MH_LAZY_INIT		= 0x0000040,
111   BFD_MACH_O_MH_TWOLEVEL		= 0x0000080,
112   BFD_MACH_O_MH_FORCE_FLAT		= 0x0000100,
113   BFD_MACH_O_MH_NOMULTIDEFS		= 0x0000200,
114   BFD_MACH_O_MH_NOFIXPREBINDING		= 0x0000400,
115   BFD_MACH_O_MH_PREBINDABLE		= 0x0000800,
116   BFD_MACH_O_MH_ALLMODSBOUND		= 0x0001000,
117   BFD_MACH_O_MH_SUBSECTIONS_VIA_SYMBOLS = 0x0002000,
118   BFD_MACH_O_MH_CANONICAL		= 0x0004000,
119   BFD_MACH_O_MH_WEAK_DEFINES		= 0x0008000,
120   BFD_MACH_O_MH_BINDS_TO_WEAK		= 0x0010000,
121   BFD_MACH_O_MH_ALLOW_STACK_EXECUTION	= 0x0020000,
122   BFD_MACH_O_MH_ROOT_SAFE		= 0x0040000,
123   BFD_MACH_O_MH_SETUID_SAFE		= 0x0080000,
124   BFD_MACH_O_MH_NO_REEXPORTED_DYLIBS	= 0x0100000,
125   BFD_MACH_O_MH_PIE			= 0x0200000,
126   BFD_MACH_O_MH_DEAD_STRIPPABLE_DYLIB   = 0x0400000,
127   BFD_MACH_O_MH_HAS_TLV_DESCRIPTORS     = 0x0800000,
128   BFD_MACH_O_MH_NO_HEAP_EXECUTION       = 0x1000000,
129   BFD_MACH_O_MH_APP_EXTENSION_SAFE      = 0x2000000
130 }
131 bfd_mach_o_header_flags;
132 
133 /* Load command constants.  */
134 #define BFD_MACH_O_LC_REQ_DYLD 0x80000000
135 
136 typedef enum bfd_mach_o_load_command_type
137 {
138   BFD_MACH_O_LC_SEGMENT = 0x1,		/* File segment to be mapped.  */
139   BFD_MACH_O_LC_SYMTAB = 0x2,		/* Link-edit stab symbol table info (obsolete).  */
140   BFD_MACH_O_LC_SYMSEG = 0x3,		/* Link-edit gdb symbol table info.  */
141   BFD_MACH_O_LC_THREAD = 0x4,		/* Thread.  */
142   BFD_MACH_O_LC_UNIXTHREAD = 0x5,	/* UNIX thread (includes a stack).  */
143   BFD_MACH_O_LC_LOADFVMLIB = 0x6,	/* Load a fixed VM shared library.  */
144   BFD_MACH_O_LC_IDFVMLIB = 0x7,		/* Fixed VM shared library id.  */
145   BFD_MACH_O_LC_IDENT = 0x8,		/* Object identification information (obsolete).  */
146   BFD_MACH_O_LC_FVMFILE = 0x9,		/* Fixed VM file inclusion.  */
147   BFD_MACH_O_LC_PREPAGE = 0xa,		/* Prepage command (internal use).  */
148   BFD_MACH_O_LC_DYSYMTAB = 0xb,		/* Dynamic link-edit symbol table info.  */
149   BFD_MACH_O_LC_LOAD_DYLIB = 0xc,	/* Load a dynamically linked shared library.  */
150   BFD_MACH_O_LC_ID_DYLIB = 0xd,		/* Dynamically linked shared lib identification.  */
151   BFD_MACH_O_LC_LOAD_DYLINKER = 0xe,	/* Load a dynamic linker.  */
152   BFD_MACH_O_LC_ID_DYLINKER = 0xf,	/* Dynamic linker identification.  */
153   BFD_MACH_O_LC_PREBOUND_DYLIB = 0x10,	/* Modules prebound for a dynamically.  */
154   BFD_MACH_O_LC_ROUTINES = 0x11,	/* Image routines.  */
155   BFD_MACH_O_LC_SUB_FRAMEWORK = 0x12,	/* Sub framework.  */
156   BFD_MACH_O_LC_SUB_UMBRELLA = 0x13,	/* Sub umbrella.  */
157   BFD_MACH_O_LC_SUB_CLIENT = 0x14,	/* Sub client.  */
158   BFD_MACH_O_LC_SUB_LIBRARY = 0x15,   	/* Sub library.  */
159   BFD_MACH_O_LC_TWOLEVEL_HINTS = 0x16,	/* Two-level namespace lookup hints.  */
160   BFD_MACH_O_LC_PREBIND_CKSUM = 0x17, 	/* Prebind checksum.  */
161   /* Load a dynamically linked shared library that is allowed to be
162        missing (weak).  */
163   BFD_MACH_O_LC_LOAD_WEAK_DYLIB = 0x18,
164   BFD_MACH_O_LC_SEGMENT_64 = 0x19,	/* 64-bit segment of this file to be
165                                            mapped.  */
166   BFD_MACH_O_LC_ROUTINES_64 = 0x1a,     /* Address of the dyld init routine
167                                            in a dylib.  */
168   BFD_MACH_O_LC_UUID = 0x1b,            /* 128-bit UUID of the executable.  */
169   BFD_MACH_O_LC_RPATH = 0x1c,		/* Run path addiions.  */
170   BFD_MACH_O_LC_CODE_SIGNATURE = 0x1d,	/* Local of code signature.  */
171   BFD_MACH_O_LC_SEGMENT_SPLIT_INFO = 0x1e, /* Local of info to split seg.  */
172   BFD_MACH_O_LC_REEXPORT_DYLIB = 0x1f,  /* Load and re-export lib.  */
173   BFD_MACH_O_LC_LAZY_LOAD_DYLIB = 0x20, /* Delay load of lib until use.  */
174   BFD_MACH_O_LC_ENCRYPTION_INFO = 0x21, /* Encrypted segment info.  */
175   BFD_MACH_O_LC_DYLD_INFO = 0x22,	/* Compressed dyld information.  */
176   BFD_MACH_O_LC_LOAD_UPWARD_DYLIB = 0x23, /* Load upward dylib.  */
177   BFD_MACH_O_LC_VERSION_MIN_MACOSX = 0x24,   /* Minimal MacOSX version.  */
178   BFD_MACH_O_LC_VERSION_MIN_IPHONEOS = 0x25, /* Minimal IOS version.  */
179   BFD_MACH_O_LC_FUNCTION_STARTS = 0x26,  /* Compressed table of func start.  */
180   BFD_MACH_O_LC_DYLD_ENVIRONMENT = 0x27, /* Env variable string for dyld.  */
181   BFD_MACH_O_LC_MAIN = 0x28,             /* Entry point.  */
182   BFD_MACH_O_LC_DATA_IN_CODE = 0x29,     /* Table of non-instructions.  */
183   BFD_MACH_O_LC_SOURCE_VERSION = 0x2a,   /* Source version.  */
184   BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS = 0x2b, /* DRs from dylibs.  */
185   BFD_MACH_O_LC_ENCRYPTION_INFO_64 = 0x2c, /* Encrypted 64 bit seg info.  */
186   BFD_MACH_O_LC_LINKER_OPTIONS = 0x2d,	/* Linker options.  */
187   BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT = 0x2e, /* Optimization hints.  */
188   BFD_MACH_O_LC_VERSION_MIN_WATCHOS = 0x30 /* Minimal WatchOS version.  */
189 }
190 bfd_mach_o_load_command_type;
191 
192 /* Section constants.  */
193 /* Constants for the type of a section.  */
194 
195 typedef enum bfd_mach_o_section_type
196 {
197   /* Regular section.  */
198   BFD_MACH_O_S_REGULAR = 0x0,
199 
200   /* Zero fill on demand section.  */
201   BFD_MACH_O_S_ZEROFILL = 0x1,
202 
203   /* Section with only literal C strings.  */
204   BFD_MACH_O_S_CSTRING_LITERALS = 0x2,
205 
206   /* Section with only 4 byte literals.  */
207   BFD_MACH_O_S_4BYTE_LITERALS = 0x3,
208 
209   /* Section with only 8 byte literals.  */
210   BFD_MACH_O_S_8BYTE_LITERALS = 0x4,
211 
212   /* Section with only pointers to literals.  */
213   BFD_MACH_O_S_LITERAL_POINTERS = 0x5,
214 
215   /* For the two types of symbol pointers sections and the symbol stubs
216      section they have indirect symbol table entries.  For each of the
217      entries in the section the indirect symbol table entries, in
218      corresponding order in the indirect symbol table, start at the index
219      stored in the reserved1 field of the section structure.  Since the
220      indirect symbol table entries correspond to the entries in the
221      section the number of indirect symbol table entries is inferred from
222      the size of the section divided by the size of the entries in the
223      section.  For symbol pointers sections the size of the entries in
224      the section is 4 bytes and for symbol stubs sections the byte size
225      of the stubs is stored in the reserved2 field of the section
226      structure.  */
227 
228   /* Section with only non-lazy symbol pointers.  */
229   BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS = 0x6,
230 
231   /* Section with only lazy symbol pointers.  */
232   BFD_MACH_O_S_LAZY_SYMBOL_POINTERS = 0x7,
233 
234   /* Section with only symbol stubs, byte size of stub in the reserved2
235      field.  */
236   BFD_MACH_O_S_SYMBOL_STUBS = 0x8,
237 
238   /* Section with only function pointers for initialization.  */
239   BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS = 0x9,
240 
241   /* Section with only function pointers for termination.  */
242   BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS = 0xa,
243 
244   /* Section contains symbols that are coalesced by the linkers.  */
245   BFD_MACH_O_S_COALESCED = 0xb,
246 
247   /* Zero fill on demand section (possibly larger than 4 GB).  */
248   BFD_MACH_O_S_GB_ZEROFILL = 0xc,
249 
250   /* Section with only pairs of function pointers for interposing.  */
251   BFD_MACH_O_S_INTERPOSING = 0xd,
252 
253   /* Section with only 16 byte literals.  */
254   BFD_MACH_O_S_16BYTE_LITERALS = 0xe,
255 
256   /* Section contains DTrace Object Format.  */
257   BFD_MACH_O_S_DTRACE_DOF = 0xf,
258 
259   /* Section with only lazy symbol pointers to lazy loaded dylibs.  */
260   BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10
261 }
262 bfd_mach_o_section_type;
263 
264 /* The flags field of a section structure is separated into two parts a section
265    type and section attributes.  The section types are mutually exclusive (it
266    can only have one type) but the section attributes are not (it may have more
267    than one attribute).  */
268 
269 #define BFD_MACH_O_SECTION_TYPE_MASK        0x000000ff
270 
271 /* Constants for the section attributes part of the flags field of a section
272    structure.  */
273 #define BFD_MACH_O_SECTION_ATTRIBUTES_MASK  0xffffff00
274 /* System setable attributes.  */
275 #define BFD_MACH_O_SECTION_ATTRIBUTES_SYS   0x00ffff00
276 /* User attributes.  */
277 #define BFD_MACH_O_SECTION_ATTRIBUTES_USR   0xff000000
278 
279 typedef enum bfd_mach_o_section_attribute
280 {
281   /* Section has no specified attibutes.  */
282   BFD_MACH_O_S_ATTR_NONE              = 0,
283 
284   /* Section has local relocation entries.  */
285   BFD_MACH_O_S_ATTR_LOC_RELOC         = 0x00000100,
286 
287   /* Section has external relocation entries.  */
288   BFD_MACH_O_S_ATTR_EXT_RELOC         = 0x00000200,
289 
290   /* Section contains some machine instructions.  */
291   BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS = 0x00000400,
292 
293   /* A debug section.  */
294   BFD_MACH_O_S_ATTR_DEBUG             = 0x02000000,
295 
296   /* Used with i386 stubs.  */
297   BFD_MACH_O_S_SELF_MODIFYING_CODE    = 0x04000000,
298 
299   /* Blocks are live if they reference live blocks.  */
300   BFD_MACH_O_S_ATTR_LIVE_SUPPORT      = 0x08000000,
301 
302   /* No dead stripping.  */
303   BFD_MACH_O_S_ATTR_NO_DEAD_STRIP     = 0x10000000,
304 
305   /* Section symbols can be stripped in files with MH_DYLDLINK flag.  */
306   BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS = 0x20000000,
307 
308   /* Section contains coalesced symbols that are not to be in the TOC of an
309      archive.  */
310   BFD_MACH_O_S_ATTR_NO_TOC            = 0x40000000,
311 
312   /* Section contains only true machine instructions.  */
313   BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS = 0x80000000
314 }
315 bfd_mach_o_section_attribute;
316 
317 /* Symbol constants.  */
318 
319 /* Symbol n_type values.  */
320 #define BFD_MACH_O_N_STAB  0xe0	/* If any of these bits set, a symbolic debugging entry.  */
321 #define BFD_MACH_O_N_PEXT  0x10	/* Private external symbol bit.  */
322 #define BFD_MACH_O_N_TYPE  0x0e	/* Mask for the type bits.  */
323 #define BFD_MACH_O_N_EXT   0x01	/* External symbol bit, set for external symbols.  */
324 #define BFD_MACH_O_N_UNDF  0x00	/* Undefined, n_sect == NO_SECT.  */
325 #define BFD_MACH_O_N_ABS   0x02	/* Absolute, n_sect == NO_SECT.  */
326 #define BFD_MACH_O_N_INDR  0x0a	/* Indirect.  */
327 #define BFD_MACH_O_N_PBUD  0x0c /* Prebound undefined (defined in a dylib).  */
328 #define BFD_MACH_O_N_SECT  0x0e	/* Defined in section number n_sect.  */
329 
330 #define BFD_MACH_O_NO_SECT 0	/* Symbol not in any section of the image.  */
331 
332 /* Symbol n_desc reference flags.  */
333 #define BFD_MACH_O_REFERENCE_MASK 				0x07
334 #define BFD_MACH_O_REFERENCE_FLAG_UNDEFINED_NON_LAZY		0x00
335 #define BFD_MACH_O_REFERENCE_FLAG_UNDEFINED_LAZY		0x01
336 #define BFD_MACH_O_REFERENCE_FLAG_DEFINED			0x02
337 #define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_DEFINED		0x03
338 #define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY	0x04
339 #define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY	0x05
340 
341 #define BFD_MACH_O_REFERENCED_DYNAMICALLY			0x10
342 #define BFD_MACH_O_N_DESC_DISCARDED				0x20
343 #define BFD_MACH_O_N_NO_DEAD_STRIP				0x20
344 #define BFD_MACH_O_N_WEAK_REF					0x40
345 #define BFD_MACH_O_N_WEAK_DEF					0x80
346 #define BFD_MACH_O_N_REF_TO_WEAK				0x80
347 
348 #define BFD_MACH_O_N_ARM_THUMB_DEF				0x08
349 #define BFD_MACH_O_N_SYMBOL_RESOLVER				0x100
350 
351 #define BFD_MACH_O_INDIRECT_SYM_LOCAL			0x80000000
352 #define BFD_MACH_O_INDIRECT_SYM_ABS			0x40000000
353 
354 /* Constants for dyld info rebase.  */
355 #define BFD_MACH_O_REBASE_OPCODE_MASK     0xf0
356 #define BFD_MACH_O_REBASE_IMMEDIATE_MASK  0x0f
357 
358 /* The rebase opcodes.  */
359 #define BFD_MACH_O_REBASE_OPCODE_DONE                               0x00
360 #define BFD_MACH_O_REBASE_OPCODE_SET_TYPE_IMM                       0x10
361 #define BFD_MACH_O_REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB        0x20
362 #define BFD_MACH_O_REBASE_OPCODE_ADD_ADDR_ULEB                      0x30
363 #define BFD_MACH_O_REBASE_OPCODE_ADD_ADDR_IMM_SCALED                0x40
364 #define BFD_MACH_O_REBASE_OPCODE_DO_REBASE_IMM_TIMES                0x50
365 #define BFD_MACH_O_REBASE_OPCODE_DO_REBASE_ULEB_TIMES               0x60
366 #define BFD_MACH_O_REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB            0x70
367 #define BFD_MACH_O_REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB 0x80
368 
369 /* The rebase type.  */
370 #define BFD_MACH_O_REBASE_TYPE_POINTER            1
371 #define BFD_MACH_O_REBASE_TYPE_TEXT_ABSOLUTE32    2
372 #define BFD_MACH_O_REBASE_TYPE_TEXT_PCREL32       3
373 
374 /* Constants for dyld info bind.  */
375 #define BFD_MACH_O_BIND_OPCODE_MASK    0xf0
376 #define BFD_MACH_O_BIND_IMMEDIATE_MASK 0x0f
377 
378 /* The bind opcodes.  */
379 #define BFD_MACH_O_BIND_OPCODE_DONE                   	      	 0x00
380 #define BFD_MACH_O_BIND_OPCODE_SET_DYLIB_ORDINAL_IMM  	      	 0x10
381 #define BFD_MACH_O_BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB 	      	 0x20
382 #define BFD_MACH_O_BIND_OPCODE_SET_DYLIB_SPECIAL_IMM  	      	 0x30
383 #define BFD_MACH_O_BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM 	 0x40
384 #define BFD_MACH_O_BIND_OPCODE_SET_TYPE_IMM                  	 0x50
385 #define BFD_MACH_O_BIND_OPCODE_SET_ADDEND_SLEB               	 0x60
386 #define BFD_MACH_O_BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB   	 0x70
387 #define BFD_MACH_O_BIND_OPCODE_ADD_ADDR_ULEB                 	 0x80
388 #define BFD_MACH_O_BIND_OPCODE_DO_BIND                       	 0x90
389 #define BFD_MACH_O_BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB         	 0xa0
390 #define BFD_MACH_O_BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED   	 0xb0
391 #define BFD_MACH_O_BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB 0xc0
392 
393 /* The bind types.  */
394 #define BFD_MACH_O_BIND_TYPE_POINTER            1
395 #define BFD_MACH_O_BIND_TYPE_TEXT_ABSOLUTE32    2
396 #define BFD_MACH_O_BIND_TYPE_TEXT_PCREL32       3
397 
398 /* The special dylib.  */
399 #define BFD_MACH_O_BIND_SPECIAL_DYLIB_SELF             0
400 #define BFD_MACH_O_BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE -1
401 #define BFD_MACH_O_BIND_SPECIAL_DYLIB_FLAT_LOOKUP     -2
402 
403 /* Constants for dyld info export.  */
404 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_KIND_MASK            0x03
405 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_KIND_REGULAR         0x00
406 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL    0x01
407 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION      0x04
408 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_REEXPORT             0x08
409 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER    0x10
410 
411 /* Constants for DATA_IN_CODE entries.  */
412 typedef enum bfd_mach_o_data_in_code_entry_kind
413 {
414   BFD_MACH_O_DICE_KIND_DATA         = 0x0001, /* Data */
415   BFD_MACH_O_DICE_JUMP_TABLES8      = 0x0002, /* 1 byte jump tables.  */
416   BFD_MACH_O_DICE_JUMP_TABLES16     = 0x0003, /* 2 bytes.  */
417   BFD_MACH_O_DICE_JUMP_TABLES32     = 0x0004, /* 4 bytes.  */
418   BFD_MACH_O_DICE_ABS_JUMP_TABLES32 = 0x0005  /* Absolute jump table.  */
419 } bfd_mach_o_data_in_code_entry_kind;
420 
421 /* Thread constants.  */
422 
423 typedef enum bfd_mach_o_ppc_thread_flavour
424 {
425   BFD_MACH_O_PPC_THREAD_STATE      = 1,
426   BFD_MACH_O_PPC_FLOAT_STATE       = 2,
427   BFD_MACH_O_PPC_EXCEPTION_STATE   = 3,
428   BFD_MACH_O_PPC_VECTOR_STATE      = 4,
429   BFD_MACH_O_PPC_THREAD_STATE64    = 5,
430   BFD_MACH_O_PPC_EXCEPTION_STATE64 = 6,
431   BFD_MACH_O_PPC_THREAD_STATE_NONE = 7
432 }
433 bfd_mach_o_ppc_thread_flavour;
434 
435 /* Defined in <mach/i386/thread_status.h> */
436 typedef enum bfd_mach_o_i386_thread_flavour
437 {
438   BFD_MACH_O_x86_THREAD_STATE32    = 1,
439   BFD_MACH_O_x86_FLOAT_STATE32     = 2,
440   BFD_MACH_O_x86_EXCEPTION_STATE32 = 3,
441   BFD_MACH_O_x86_THREAD_STATE64    = 4,
442   BFD_MACH_O_x86_FLOAT_STATE64     = 5,
443   BFD_MACH_O_x86_EXCEPTION_STATE64 = 6,
444   BFD_MACH_O_x86_THREAD_STATE      = 7,
445   BFD_MACH_O_x86_FLOAT_STATE       = 8,
446   BFD_MACH_O_x86_EXCEPTION_STATE   = 9,
447   BFD_MACH_O_x86_DEBUG_STATE32     = 10,
448   BFD_MACH_O_x86_DEBUG_STATE64     = 11,
449   BFD_MACH_O_x86_DEBUG_STATE       = 12,
450   BFD_MACH_O_x86_THREAD_STATE_NONE = 13
451 }
452 bfd_mach_o_i386_thread_flavour;
453 
454 #endif /* _MACH_O_LOADER_H */
455