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      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.  */
    135 #define BFD_MACH_O_LC_REQ_DYLD 0x80000000
    136 
    137 typedef enum bfd_mach_o_load_command_type
    138 {
    139   BFD_MACH_O_LC_SEGMENT = 0x1,		/* File segment to be mapped.  */
    140   BFD_MACH_O_LC_SYMTAB = 0x2,		/* Link-edit stab symbol table info (obsolete).  */
    141   BFD_MACH_O_LC_SYMSEG = 0x3,		/* Link-edit gdb symbol table info.  */
    142   BFD_MACH_O_LC_THREAD = 0x4,		/* Thread.  */
    143   BFD_MACH_O_LC_UNIXTHREAD = 0x5,	/* UNIX thread (includes a stack).  */
    144   BFD_MACH_O_LC_LOADFVMLIB = 0x6,	/* Load a fixed VM shared library.  */
    145   BFD_MACH_O_LC_IDFVMLIB = 0x7,		/* Fixed VM shared library id.  */
    146   BFD_MACH_O_LC_IDENT = 0x8,		/* Object identification information (obsolete).  */
    147   BFD_MACH_O_LC_FVMFILE = 0x9,		/* Fixed VM file inclusion.  */
    148   BFD_MACH_O_LC_PREPAGE = 0xa,		/* Prepage command (internal use).  */
    149   BFD_MACH_O_LC_DYSYMTAB = 0xb,		/* Dynamic link-edit symbol table info.  */
    150   BFD_MACH_O_LC_LOAD_DYLIB = 0xc,	/* Load a dynamically linked shared library.  */
    151   BFD_MACH_O_LC_ID_DYLIB = 0xd,		/* Dynamically linked shared lib identification.  */
    152   BFD_MACH_O_LC_LOAD_DYLINKER = 0xe,	/* Load a dynamic linker.  */
    153   BFD_MACH_O_LC_ID_DYLINKER = 0xf,	/* Dynamic linker identification.  */
    154   BFD_MACH_O_LC_PREBOUND_DYLIB = 0x10,	/* Modules prebound for a dynamically.  */
    155   BFD_MACH_O_LC_ROUTINES = 0x11,	/* Image routines.  */
    156   BFD_MACH_O_LC_SUB_FRAMEWORK = 0x12,	/* Sub framework.  */
    157   BFD_MACH_O_LC_SUB_UMBRELLA = 0x13,	/* Sub umbrella.  */
    158   BFD_MACH_O_LC_SUB_CLIENT = 0x14,	/* Sub client.  */
    159   BFD_MACH_O_LC_SUB_LIBRARY = 0x15,   	/* Sub library.  */
    160   BFD_MACH_O_LC_TWOLEVEL_HINTS = 0x16,	/* Two-level namespace lookup hints.  */
    161   BFD_MACH_O_LC_PREBIND_CKSUM = 0x17, 	/* Prebind checksum.  */
    162   /* Load a dynamically linked shared library that is allowed to be
    163        missing (weak).  */
    164   BFD_MACH_O_LC_LOAD_WEAK_DYLIB = 0x18,
    165   BFD_MACH_O_LC_SEGMENT_64 = 0x19,	/* 64-bit segment of this file to be
    166                                            mapped.  */
    167   BFD_MACH_O_LC_ROUTINES_64 = 0x1a,     /* Address of the dyld init routine
    168                                            in a dylib.  */
    169   BFD_MACH_O_LC_UUID = 0x1b,            /* 128-bit UUID of the executable.  */
    170   BFD_MACH_O_LC_RPATH = 0x1c,		/* Run path addiions.  */
    171   BFD_MACH_O_LC_CODE_SIGNATURE = 0x1d,	/* Local of code signature.  */
    172   BFD_MACH_O_LC_SEGMENT_SPLIT_INFO = 0x1e, /* Local of info to split seg.  */
    173   BFD_MACH_O_LC_REEXPORT_DYLIB = 0x1f,  /* Load and re-export lib.  */
    174   BFD_MACH_O_LC_LAZY_LOAD_DYLIB = 0x20, /* Delay load of lib until use.  */
    175   BFD_MACH_O_LC_ENCRYPTION_INFO = 0x21, /* Encrypted segment info.  */
    176   BFD_MACH_O_LC_DYLD_INFO = 0x22,	/* Compressed dyld information.  */
    177   BFD_MACH_O_LC_LOAD_UPWARD_DYLIB = 0x23, /* Load upward dylib.  */
    178   BFD_MACH_O_LC_VERSION_MIN_MACOSX = 0x24,   /* Minimal MacOSX version.  */
    179   BFD_MACH_O_LC_VERSION_MIN_IPHONEOS = 0x25, /* Minimal IOS version.  */
    180   BFD_MACH_O_LC_FUNCTION_STARTS = 0x26,  /* Compressed table of func start.  */
    181   BFD_MACH_O_LC_DYLD_ENVIRONMENT = 0x27, /* Env variable string for dyld.  */
    182   BFD_MACH_O_LC_MAIN = 0x28,             /* Entry point.  */
    183   BFD_MACH_O_LC_DATA_IN_CODE = 0x29,     /* Table of non-instructions.  */
    184   BFD_MACH_O_LC_SOURCE_VERSION = 0x2a,   /* Source version.  */
    185   BFD_MACH_O_LC_DYLIB_CODE_SIGN_DRS = 0x2b, /* DRs from dylibs.  */
    186   BFD_MACH_O_LC_ENCRYPTION_INFO_64 = 0x2c, /* Encrypted 64 bit seg info.  */
    187   BFD_MACH_O_LC_LINKER_OPTIONS = 0x2d,	/* Linker options.  */
    188   BFD_MACH_O_LC_LINKER_OPTIMIZATION_HINT = 0x2e, /* Optimization hints.  */
    189   BFD_MACH_O_LC_VERSION_MIN_WATCHOS = 0x30 /* Minimal WatchOS version.  */
    190 }
    191 bfd_mach_o_load_command_type;
    192 
    193 /* Section constants.  */
    195 /* Constants for the type of a section.  */
    196 
    197 typedef enum bfd_mach_o_section_type
    198 {
    199   /* Regular section.  */
    200   BFD_MACH_O_S_REGULAR = 0x0,
    201 
    202   /* Zero fill on demand section.  */
    203   BFD_MACH_O_S_ZEROFILL = 0x1,
    204 
    205   /* Section with only literal C strings.  */
    206   BFD_MACH_O_S_CSTRING_LITERALS = 0x2,
    207 
    208   /* Section with only 4 byte literals.  */
    209   BFD_MACH_O_S_4BYTE_LITERALS = 0x3,
    210 
    211   /* Section with only 8 byte literals.  */
    212   BFD_MACH_O_S_8BYTE_LITERALS = 0x4,
    213 
    214   /* Section with only pointers to literals.  */
    215   BFD_MACH_O_S_LITERAL_POINTERS = 0x5,
    216 
    217   /* For the two types of symbol pointers sections and the symbol stubs
    218      section they have indirect symbol table entries.  For each of the
    219      entries in the section the indirect symbol table entries, in
    220      corresponding order in the indirect symbol table, start at the index
    221      stored in the reserved1 field of the section structure.  Since the
    222      indirect symbol table entries correspond to the entries in the
    223      section the number of indirect symbol table entries is inferred from
    224      the size of the section divided by the size of the entries in the
    225      section.  For symbol pointers sections the size of the entries in
    226      the section is 4 bytes and for symbol stubs sections the byte size
    227      of the stubs is stored in the reserved2 field of the section
    228      structure.  */
    229 
    230   /* Section with only non-lazy symbol pointers.  */
    231   BFD_MACH_O_S_NON_LAZY_SYMBOL_POINTERS = 0x6,
    232 
    233   /* Section with only lazy symbol pointers.  */
    234   BFD_MACH_O_S_LAZY_SYMBOL_POINTERS = 0x7,
    235 
    236   /* Section with only symbol stubs, byte size of stub in the reserved2
    237      field.  */
    238   BFD_MACH_O_S_SYMBOL_STUBS = 0x8,
    239 
    240   /* Section with only function pointers for initialization.  */
    241   BFD_MACH_O_S_MOD_INIT_FUNC_POINTERS = 0x9,
    242 
    243   /* Section with only function pointers for termination.  */
    244   BFD_MACH_O_S_MOD_FINI_FUNC_POINTERS = 0xa,
    245 
    246   /* Section contains symbols that are coalesced by the linkers.  */
    247   BFD_MACH_O_S_COALESCED = 0xb,
    248 
    249   /* Zero fill on demand section (possibly larger than 4 GB).  */
    250   BFD_MACH_O_S_GB_ZEROFILL = 0xc,
    251 
    252   /* Section with only pairs of function pointers for interposing.  */
    253   BFD_MACH_O_S_INTERPOSING = 0xd,
    254 
    255   /* Section with only 16 byte literals.  */
    256   BFD_MACH_O_S_16BYTE_LITERALS = 0xe,
    257 
    258   /* Section contains DTrace Object Format.  */
    259   BFD_MACH_O_S_DTRACE_DOF = 0xf,
    260 
    261   /* Section with only lazy symbol pointers to lazy loaded dylibs.  */
    262   BFD_MACH_O_S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10
    263 }
    264 bfd_mach_o_section_type;
    265 
    266 /* The flags field of a section structure is separated into two parts a section
    267    type and section attributes.  The section types are mutually exclusive (it
    268    can only have one type) but the section attributes are not (it may have more
    269    than one attribute).  */
    270 
    271 #define BFD_MACH_O_SECTION_TYPE_MASK        0x000000ff
    272 
    273 /* Constants for the section attributes part of the flags field of a section
    274    structure.  */
    275 #define BFD_MACH_O_SECTION_ATTRIBUTES_MASK  0xffffff00
    276 /* System setable attributes.  */
    277 #define BFD_MACH_O_SECTION_ATTRIBUTES_SYS   0x00ffff00
    278 /* User attributes.  */
    279 #define BFD_MACH_O_SECTION_ATTRIBUTES_USR   0xff000000
    280 
    281 typedef enum bfd_mach_o_section_attribute
    282 {
    283   /* Section has no specified attibutes.  */
    284   BFD_MACH_O_S_ATTR_NONE              = 0,
    285 
    286   /* Section has local relocation entries.  */
    287   BFD_MACH_O_S_ATTR_LOC_RELOC         = 0x00000100,
    288 
    289   /* Section has external relocation entries.  */
    290   BFD_MACH_O_S_ATTR_EXT_RELOC         = 0x00000200,
    291 
    292   /* Section contains some machine instructions.  */
    293   BFD_MACH_O_S_ATTR_SOME_INSTRUCTIONS = 0x00000400,
    294 
    295   /* A debug section.  */
    296   BFD_MACH_O_S_ATTR_DEBUG             = 0x02000000,
    297 
    298   /* Used with i386 stubs.  */
    299   BFD_MACH_O_S_SELF_MODIFYING_CODE    = 0x04000000,
    300 
    301   /* Blocks are live if they reference live blocks.  */
    302   BFD_MACH_O_S_ATTR_LIVE_SUPPORT      = 0x08000000,
    303 
    304   /* No dead stripping.  */
    305   BFD_MACH_O_S_ATTR_NO_DEAD_STRIP     = 0x10000000,
    306 
    307   /* Section symbols can be stripped in files with MH_DYLDLINK flag.  */
    308   BFD_MACH_O_S_ATTR_STRIP_STATIC_SYMS = 0x20000000,
    309 
    310   /* Section contains coalesced symbols that are not to be in the TOC of an
    311      archive.  */
    312   BFD_MACH_O_S_ATTR_NO_TOC            = 0x40000000,
    313 
    314   /* Section contains only true machine instructions.  */
    315   BFD_MACH_O_S_ATTR_PURE_INSTRUCTIONS = 0x80000000
    316 }
    317 bfd_mach_o_section_attribute;
    318 
    319 /* Symbol constants.  */
    321 
    322 /* Symbol n_type values.  */
    323 #define BFD_MACH_O_N_STAB  0xe0	/* If any of these bits set, a symbolic debugging entry.  */
    324 #define BFD_MACH_O_N_PEXT  0x10	/* Private external symbol bit.  */
    325 #define BFD_MACH_O_N_TYPE  0x0e	/* Mask for the type bits.  */
    326 #define BFD_MACH_O_N_EXT   0x01	/* External symbol bit, set for external symbols.  */
    327 #define BFD_MACH_O_N_UNDF  0x00	/* Undefined, n_sect == NO_SECT.  */
    328 #define BFD_MACH_O_N_ABS   0x02	/* Absolute, n_sect == NO_SECT.  */
    329 #define BFD_MACH_O_N_INDR  0x0a	/* Indirect.  */
    330 #define BFD_MACH_O_N_PBUD  0x0c /* Prebound undefined (defined in a dylib).  */
    331 #define BFD_MACH_O_N_SECT  0x0e	/* Defined in section number n_sect.  */
    332 
    333 #define BFD_MACH_O_NO_SECT 0	/* Symbol not in any section of the image.  */
    334 
    335 /* Symbol n_desc reference flags.  */
    336 #define BFD_MACH_O_REFERENCE_MASK 				0x07
    337 #define BFD_MACH_O_REFERENCE_FLAG_UNDEFINED_NON_LAZY		0x00
    338 #define BFD_MACH_O_REFERENCE_FLAG_UNDEFINED_LAZY		0x01
    339 #define BFD_MACH_O_REFERENCE_FLAG_DEFINED			0x02
    340 #define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_DEFINED		0x03
    341 #define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY	0x04
    342 #define BFD_MACH_O_REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY	0x05
    343 
    344 #define BFD_MACH_O_REFERENCED_DYNAMICALLY			0x10
    345 #define BFD_MACH_O_N_DESC_DISCARDED				0x20
    346 #define BFD_MACH_O_N_NO_DEAD_STRIP				0x20
    347 #define BFD_MACH_O_N_WEAK_REF					0x40
    348 #define BFD_MACH_O_N_WEAK_DEF					0x80
    349 #define BFD_MACH_O_N_REF_TO_WEAK				0x80
    350 
    351 #define BFD_MACH_O_N_ARM_THUMB_DEF				0x08
    352 #define BFD_MACH_O_N_SYMBOL_RESOLVER				0x100
    353 
    354 #define BFD_MACH_O_INDIRECT_SYM_LOCAL			0x80000000
    355 #define BFD_MACH_O_INDIRECT_SYM_ABS			0x40000000
    356 
    357 /* Constants for dyld info rebase.  */
    359 #define BFD_MACH_O_REBASE_OPCODE_MASK     0xf0
    360 #define BFD_MACH_O_REBASE_IMMEDIATE_MASK  0x0f
    361 
    362 /* The rebase opcodes.  */
    363 #define BFD_MACH_O_REBASE_OPCODE_DONE                               0x00
    364 #define BFD_MACH_O_REBASE_OPCODE_SET_TYPE_IMM                       0x10
    365 #define BFD_MACH_O_REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB        0x20
    366 #define BFD_MACH_O_REBASE_OPCODE_ADD_ADDR_ULEB                      0x30
    367 #define BFD_MACH_O_REBASE_OPCODE_ADD_ADDR_IMM_SCALED                0x40
    368 #define BFD_MACH_O_REBASE_OPCODE_DO_REBASE_IMM_TIMES                0x50
    369 #define BFD_MACH_O_REBASE_OPCODE_DO_REBASE_ULEB_TIMES               0x60
    370 #define BFD_MACH_O_REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB            0x70
    371 #define BFD_MACH_O_REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB 0x80
    372 
    373 /* The rebase type.  */
    374 #define BFD_MACH_O_REBASE_TYPE_POINTER            1
    375 #define BFD_MACH_O_REBASE_TYPE_TEXT_ABSOLUTE32    2
    376 #define BFD_MACH_O_REBASE_TYPE_TEXT_PCREL32       3
    377 
    378 /* Constants for dyld info bind.  */
    379 #define BFD_MACH_O_BIND_OPCODE_MASK    0xf0
    380 #define BFD_MACH_O_BIND_IMMEDIATE_MASK 0x0f
    381 
    382 /* The bind opcodes.  */
    383 #define BFD_MACH_O_BIND_OPCODE_DONE                   	      	 0x00
    384 #define BFD_MACH_O_BIND_OPCODE_SET_DYLIB_ORDINAL_IMM  	      	 0x10
    385 #define BFD_MACH_O_BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB 	      	 0x20
    386 #define BFD_MACH_O_BIND_OPCODE_SET_DYLIB_SPECIAL_IMM  	      	 0x30
    387 #define BFD_MACH_O_BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM 	 0x40
    388 #define BFD_MACH_O_BIND_OPCODE_SET_TYPE_IMM                  	 0x50
    389 #define BFD_MACH_O_BIND_OPCODE_SET_ADDEND_SLEB               	 0x60
    390 #define BFD_MACH_O_BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB   	 0x70
    391 #define BFD_MACH_O_BIND_OPCODE_ADD_ADDR_ULEB                 	 0x80
    392 #define BFD_MACH_O_BIND_OPCODE_DO_BIND                       	 0x90
    393 #define BFD_MACH_O_BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB         	 0xa0
    394 #define BFD_MACH_O_BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED   	 0xb0
    395 #define BFD_MACH_O_BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB 0xc0
    396 
    397 /* The bind types.  */
    398 #define BFD_MACH_O_BIND_TYPE_POINTER            1
    399 #define BFD_MACH_O_BIND_TYPE_TEXT_ABSOLUTE32    2
    400 #define BFD_MACH_O_BIND_TYPE_TEXT_PCREL32       3
    401 
    402 /* The special dylib.  */
    403 #define BFD_MACH_O_BIND_SPECIAL_DYLIB_SELF             0
    404 #define BFD_MACH_O_BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE -1
    405 #define BFD_MACH_O_BIND_SPECIAL_DYLIB_FLAT_LOOKUP     -2
    406 
    407 /* Constants for dyld info export.  */
    408 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_KIND_MASK            0x03
    409 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_KIND_REGULAR         0x00
    410 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL    0x01
    411 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION      0x04
    412 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_REEXPORT             0x08
    413 #define BFD_MACH_O_EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER    0x10
    414 
    415 /* Constants for DATA_IN_CODE entries.  */
    416 typedef enum bfd_mach_o_data_in_code_entry_kind
    417 {
    418   BFD_MACH_O_DICE_KIND_DATA         = 0x0001, /* Data */
    419   BFD_MACH_O_DICE_JUMP_TABLES8      = 0x0002, /* 1 byte jump tables.  */
    420   BFD_MACH_O_DICE_JUMP_TABLES16     = 0x0003, /* 2 bytes.  */
    421   BFD_MACH_O_DICE_JUMP_TABLES32     = 0x0004, /* 4 bytes.  */
    422   BFD_MACH_O_DICE_ABS_JUMP_TABLES32 = 0x0005  /* Absolute jump table.  */
    423 } bfd_mach_o_data_in_code_entry_kind;
    424 
    425 /* Thread constants.  */
    426 
    427 typedef enum bfd_mach_o_ppc_thread_flavour
    428 {
    429   BFD_MACH_O_PPC_THREAD_STATE      = 1,
    430   BFD_MACH_O_PPC_FLOAT_STATE       = 2,
    431   BFD_MACH_O_PPC_EXCEPTION_STATE   = 3,
    432   BFD_MACH_O_PPC_VECTOR_STATE      = 4,
    433   BFD_MACH_O_PPC_THREAD_STATE64    = 5,
    434   BFD_MACH_O_PPC_EXCEPTION_STATE64 = 6,
    435   BFD_MACH_O_PPC_THREAD_STATE_NONE = 7
    436 }
    437 bfd_mach_o_ppc_thread_flavour;
    438 
    439 /* Defined in <mach/i386/thread_status.h> */
    440 typedef enum bfd_mach_o_i386_thread_flavour
    441 {
    442   BFD_MACH_O_x86_THREAD_STATE32    = 1,
    443   BFD_MACH_O_x86_FLOAT_STATE32     = 2,
    444   BFD_MACH_O_x86_EXCEPTION_STATE32 = 3,
    445   BFD_MACH_O_x86_THREAD_STATE64    = 4,
    446   BFD_MACH_O_x86_FLOAT_STATE64     = 5,
    447   BFD_MACH_O_x86_EXCEPTION_STATE64 = 6,
    448   BFD_MACH_O_x86_THREAD_STATE      = 7,
    449   BFD_MACH_O_x86_FLOAT_STATE       = 8,
    450   BFD_MACH_O_x86_EXCEPTION_STATE   = 9,
    451   BFD_MACH_O_x86_DEBUG_STATE32     = 10,
    452   BFD_MACH_O_x86_DEBUG_STATE64     = 11,
    453   BFD_MACH_O_x86_DEBUG_STATE       = 12,
    454   BFD_MACH_O_x86_THREAD_STATE_NONE = 13
    455 }
    456 bfd_mach_o_i386_thread_flavour;
    457 
    458 #endif /* _MACH_O_LOADER_H */
    459