text: //===-- llvm/BinaryFormat/MachO.h - The MachO file format -------*- C++/-*-===//
  //
  //                     The LLVM Compiler Infrastructure
  //
  // This file is distributed under the University of Illinois Open Source
  // License. See LICENSE.TXT for details.
  //
  //===----------------------------------------------------------------------===//
  //
  // This file defines manifest constants for the MachO object file format.
  //
  //===----------------------------------------------------------------------===//
  
  #ifndef LLVM_BINARYFORMAT_MACHO_H
  #define LLVM_BINARYFORMAT_MACHO_H
  
  #include "llvm/Support/Compiler.h"
  #include "llvm/Support/DataTypes.h"
  #include "llvm/Support/Host.h"
  
  namespace llvm {
  namespace MachO {
  // Enums from <mach-o/loader.h>
  enum : uint32_t {
    // Constants for the "magic" field in llvm::MachO::mach_header and
    // llvm::MachO::mach_header_64
    MH_MAGIC = 0xFEEDFACEu,
    MH_CIGAM = 0xCEFAEDFEu,
    MH_MAGIC_64 = 0xFEEDFACFu,
    MH_CIGAM_64 = 0xCFFAEDFEu,
    FAT_MAGIC = 0xCAFEBABEu,
    FAT_CIGAM = 0xBEBAFECAu,
    FAT_MAGIC_64 = 0xCAFEBABFu,
    FAT_CIGAM_64 = 0xBFBAFECAu
  };
  
  enum HeaderFileType {
    // Constants for the "filetype" field in llvm::MachO::mach_header and
    // llvm::MachO::mach_header_64
    MH_OBJECT = 0x1u,
    MH_EXECUTE = 0x2u,
    MH_FVMLIB = 0x3u,
    MH_CORE = 0x4u,
    MH_PRELOAD = 0x5u,
    MH_DYLIB = 0x6u,
    MH_DYLINKER = 0x7u,
    MH_BUNDLE = 0x8u,
    MH_DYLIB_STUB = 0x9u,
    MH_DSYM = 0xAu,
    MH_KEXT_BUNDLE = 0xBu
  };
  
  enum {
    // Constant bits for the "flags" field in llvm::MachO::mach_header and
    // llvm::MachO::mach_header_64
    MH_NOUNDEFS = 0x00000001u,
    MH_INCRLINK = 0x00000002u,
    MH_DYLDLINK = 0x00000004u,
    MH_BINDATLOAD = 0x00000008u,
    MH_PREBOUND = 0x00000010u,
    MH_SPLIT_SEGS = 0x00000020u,
    MH_LAZY_INIT = 0x00000040u,
    MH_TWOLEVEL = 0x00000080u,
    MH_FORCE_FLAT = 0x00000100u,
    MH_NOMULTIDEFS = 0x00000200u,
    MH_NOFIXPREBINDING = 0x00000400u,
    MH_PREBINDABLE = 0x00000800u,
    MH_ALLMODSBOUND = 0x00001000u,
    MH_SUBSECTIONS_VIA_SYMBOLS = 0x00002000u,
    MH_CANONICAL = 0x00004000u,
    MH_WEAK_DEFINES = 0x00008000u,
    MH_BINDS_TO_WEAK = 0x00010000u,
    MH_ALLOW_STACK_EXECUTION = 0x00020000u,
    MH_ROOT_SAFE = 0x00040000u,
    MH_SETUID_SAFE = 0x00080000u,
    MH_NO_REEXPORTED_DYLIBS = 0x00100000u,
    MH_PIE = 0x00200000u,
    MH_DEAD_STRIPPABLE_DYLIB = 0x00400000u,
    MH_HAS_TLV_DESCRIPTORS = 0x00800000u,
    MH_NO_HEAP_EXECUTION = 0x01000000u,
    MH_APP_EXTENSION_SAFE = 0x02000000u,
    MH_NLIST_OUTOFSYNC_WITH_DYLDINFO = 0x04000000u
  };
  
  enum : uint32_t {
    // Flags for the "cmd" field in llvm::MachO::load_command
    LC_REQ_DYLD = 0x80000000u
  };
  
  #define HANDLE_LOAD_COMMAND(LCName, LCValue, LCStruct) LCName = LCValue,
  
  enum LoadCommandType : uint32_t {
  #include "llvm/BinaryFormat/MachO.def"
  };
  
  #undef HANDLE_LOAD_COMMAND
  
  enum : uint32_t {
    // Constant bits for the "flags" field in llvm::MachO::segment_command
    SG_HIGHVM = 0x1u,
    SG_FVMLIB = 0x2u,
    SG_NORELOC = 0x4u,
    SG_PROTECTED_VERSION_1 = 0x8u,
  
    // Constant masks for the "flags" field in llvm::MachO::section and
    // llvm::MachO::section_64
    SECTION_TYPE = 0x000000ffu,           // SECTION_TYPE
    SECTION_ATTRIBUTES = 0xffffff00u,     // SECTION_ATTRIBUTES
    SECTION_ATTRIBUTES_USR = 0xff000000u, // SECTION_ATTRIBUTES_USR
    SECTION_ATTRIBUTES_SYS = 0x00ffff00u  // SECTION_ATTRIBUTES_SYS
  };
  
  /// These are the section type and attributes fields.  A MachO section can
  /// have only one Type, but can have any of the attributes specified.
  enum SectionType : uint32_t {
    // Constant masks for the "flags[7:0]" field in llvm::MachO::section and
    // llvm::MachO::section_64 (mask "flags" with SECTION_TYPE)
  
    /// S_REGULAR - Regular section.
    S_REGULAR = 0x00u,
    /// S_ZEROFILL - Zero fill on demand section.
    S_ZEROFILL = 0x01u,
    /// S_CSTRING_LITERALS - Section with literal C strings.
    S_CSTRING_LITERALS = 0x02u,
    /// S_4BYTE_LITERALS - Section with 4 byte literals.
    S_4BYTE_LITERALS = 0x03u,
    /// S_8BYTE_LITERALS - Section with 8 byte literals.
    S_8BYTE_LITERALS = 0x04u,
    /// S_LITERAL_POINTERS - Section with pointers to literals.
    S_LITERAL_POINTERS = 0x05u,
    /// S_NON_LAZY_SYMBOL_POINTERS - Section with non-lazy symbol pointers.
    S_NON_LAZY_SYMBOL_POINTERS = 0x06u,
    /// S_LAZY_SYMBOL_POINTERS - Section with lazy symbol pointers.
    S_LAZY_SYMBOL_POINTERS = 0x07u,
    /// S_SYMBOL_STUBS - Section with symbol stubs, byte size of stub in
    /// the Reserved2 field.
    S_SYMBOL_STUBS = 0x08u,
    /// S_MOD_INIT_FUNC_POINTERS - Section with only function pointers for
    /// initialization.
    S_MOD_INIT_FUNC_POINTERS = 0x09u,
    /// S_MOD_TERM_FUNC_POINTERS - Section with only function pointers for
    /// termination.
    S_MOD_TERM_FUNC_POINTERS = 0x0au,
    /// S_COALESCED - Section contains symbols that are to be coalesced.
    S_COALESCED = 0x0bu,
    /// S_GB_ZEROFILL - Zero fill on demand section (that can be larger than 4
    /// gigabytes).
    S_GB_ZEROFILL = 0x0cu,
    /// S_INTERPOSING - Section with only pairs of function pointers for
    /// interposing.
    S_INTERPOSING = 0x0du,
    /// S_16BYTE_LITERALS - Section with only 16 byte literals.
    S_16BYTE_LITERALS = 0x0eu,
    /// S_DTRACE_DOF - Section contains DTrace Object Format.
    S_DTRACE_DOF = 0x0fu,
    /// S_LAZY_DYLIB_SYMBOL_POINTERS - Section with lazy symbol pointers to
    /// lazy loaded dylibs.
    S_LAZY_DYLIB_SYMBOL_POINTERS = 0x10u,
    /// S_THREAD_LOCAL_REGULAR - Thread local data section.
    S_THREAD_LOCAL_REGULAR = 0x11u,
    /// S_THREAD_LOCAL_ZEROFILL - Thread local zerofill section.
    S_THREAD_LOCAL_ZEROFILL = 0x12u,
    /// S_THREAD_LOCAL_VARIABLES - Section with thread local variable
    /// structure data.
    S_THREAD_LOCAL_VARIABLES = 0x13u,
    /// S_THREAD_LOCAL_VARIABLE_POINTERS - Section with pointers to thread
    /// local structures.
    S_THREAD_LOCAL_VARIABLE_POINTERS = 0x14u,
    /// S_THREAD_LOCAL_INIT_FUNCTION_POINTERS - Section with thread local
    /// variable initialization pointers to functions.
    S_THREAD_LOCAL_INIT_FUNCTION_POINTERS = 0x15u,
  
    LAST_KNOWN_SECTION_TYPE = S_THREAD_LOCAL_INIT_FUNCTION_POINTERS
  };
  
  enum : uint32_t {
    // Constant masks for the "flags[31:24]" field in llvm::MachO::section and
    // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_USR)
  
    /// S_ATTR_PURE_INSTRUCTIONS - Section contains only true machine
    /// instructions.
    S_ATTR_PURE_INSTRUCTIONS = 0x80000000u,
    /// S_ATTR_NO_TOC - Section contains coalesced symbols that are not to be
    /// in a ranlib table of contents.
    S_ATTR_NO_TOC = 0x40000000u,
    /// S_ATTR_STRIP_STATIC_SYMS - Ok to strip static symbols in this section
    /// in files with the MY_DYLDLINK flag.
    S_ATTR_STRIP_STATIC_SYMS = 0x20000000u,
    /// S_ATTR_NO_DEAD_STRIP - No dead stripping.
    S_ATTR_NO_DEAD_STRIP = 0x10000000u,
    /// S_ATTR_LIVE_SUPPORT - Blocks are live if they reference live blocks.
    S_ATTR_LIVE_SUPPORT = 0x08000000u,
    /// S_ATTR_SELF_MODIFYING_CODE - Used with i386 code stubs written on by
    /// dyld.
    S_ATTR_SELF_MODIFYING_CODE = 0x04000000u,
    /// S_ATTR_DEBUG - A debug section.
    S_ATTR_DEBUG = 0x02000000u,
  
    // Constant masks for the "flags[23:8]" field in llvm::MachO::section and
    // llvm::MachO::section_64 (mask "flags" with SECTION_ATTRIBUTES_SYS)
  
    /// S_ATTR_SOME_INSTRUCTIONS - Section contains some machine instructions.
    S_ATTR_SOME_INSTRUCTIONS = 0x00000400u,
    /// S_ATTR_EXT_RELOC - Section has external relocation entries.
    S_ATTR_EXT_RELOC = 0x00000200u,
    /// S_ATTR_LOC_RELOC - Section has local relocation entries.
    S_ATTR_LOC_RELOC = 0x00000100u,
  
    // Constant masks for the value of an indirect symbol in an indirect
    // symbol table
    INDIRECT_SYMBOL_LOCAL = 0x80000000u,
    INDIRECT_SYMBOL_ABS = 0x40000000u
  };
  
  enum DataRegionType {
    // Constants for the "kind" field in a data_in_code_entry structure
    DICE_KIND_DATA = 1u,
    DICE_KIND_JUMP_TABLE8 = 2u,
    DICE_KIND_JUMP_TABLE16 = 3u,
    DICE_KIND_JUMP_TABLE32 = 4u,
    DICE_KIND_ABS_JUMP_TABLE32 = 5u
  };
  
  enum RebaseType {
    REBASE_TYPE_POINTER = 1u,
    REBASE_TYPE_TEXT_ABSOLUTE32 = 2u,
    REBASE_TYPE_TEXT_PCREL32 = 3u
  };
  
  enum { REBASE_OPCODE_MASK = 0xF0u, REBASE_IMMEDIATE_MASK = 0x0Fu };
  
  enum RebaseOpcode {
    REBASE_OPCODE_DONE = 0x00u,
    REBASE_OPCODE_SET_TYPE_IMM = 0x10u,
    REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x20u,
    REBASE_OPCODE_ADD_ADDR_ULEB = 0x30u,
    REBASE_OPCODE_ADD_ADDR_IMM_SCALED = 0x40u,
    REBASE_OPCODE_DO_REBASE_IMM_TIMES = 0x50u,
    REBASE_OPCODE_DO_REBASE_ULEB_TIMES = 0x60u,
    REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB = 0x70u,
    REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB = 0x80u
  };
  
  enum BindType {
    BIND_TYPE_POINTER = 1u,
    BIND_TYPE_TEXT_ABSOLUTE32 = 2u,
    BIND_TYPE_TEXT_PCREL32 = 3u
  };
  
  enum BindSpecialDylib {
    BIND_SPECIAL_DYLIB_SELF = 0,
    BIND_SPECIAL_DYLIB_MAIN_EXECUTABLE = -1,
    BIND_SPECIAL_DYLIB_FLAT_LOOKUP = -2
  };
  
  enum {
    BIND_SYMBOL_FLAGS_WEAK_IMPORT = 0x1u,
    BIND_SYMBOL_FLAGS_NON_WEAK_DEFINITION = 0x8u,
  
    BIND_OPCODE_MASK = 0xF0u,
    BIND_IMMEDIATE_MASK = 0x0Fu
  };
  
  enum BindOpcode {
    BIND_OPCODE_DONE = 0x00u,
    BIND_OPCODE_SET_DYLIB_ORDINAL_IMM = 0x10u,
    BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB = 0x20u,
    BIND_OPCODE_SET_DYLIB_SPECIAL_IMM = 0x30u,
    BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM = 0x40u,
    BIND_OPCODE_SET_TYPE_IMM = 0x50u,
    BIND_OPCODE_SET_ADDEND_SLEB = 0x60u,
    BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB = 0x70u,
    BIND_OPCODE_ADD_ADDR_ULEB = 0x80u,
    BIND_OPCODE_DO_BIND = 0x90u,
    BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB = 0xA0u,
    BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED = 0xB0u,
    BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB = 0xC0u
  };
  
  enum {
    EXPORT_SYMBOL_FLAGS_KIND_MASK = 0x03u,
    EXPORT_SYMBOL_FLAGS_WEAK_DEFINITION = 0x04u,
    EXPORT_SYMBOL_FLAGS_REEXPORT = 0x08u,
    EXPORT_SYMBOL_FLAGS_STUB_AND_RESOLVER = 0x10u
  };
  
  enum ExportSymbolKind {
    EXPORT_SYMBOL_FLAGS_KIND_REGULAR = 0x00u,
    EXPORT_SYMBOL_FLAGS_KIND_THREAD_LOCAL = 0x01u,
    EXPORT_SYMBOL_FLAGS_KIND_ABSOLUTE = 0x02u
  };
  
  enum {
    // Constant masks for the "n_type" field in llvm::MachO::nlist and
    // llvm::MachO::nlist_64
    N_STAB = 0xe0,
    N_PEXT = 0x10,
    N_TYPE = 0x0e,
    N_EXT = 0x01
  };
  
  enum NListType : uint8_t {
    // Constants for the "n_type & N_TYPE" llvm::MachO::nlist and
    // llvm::MachO::nlist_64
    N_UNDF = 0x0u,
    N_ABS = 0x2u,
    N_SECT = 0xeu,
    N_PBUD = 0xcu,
    N_INDR = 0xau
  };
  
  enum SectionOrdinal {
    // Constants for the "n_sect" field in llvm::MachO::nlist and
    // llvm::MachO::nlist_64
    NO_SECT = 0u,
    MAX_SECT = 0xffu
  };
  
  enum {
    // Constant masks for the "n_desc" field in llvm::MachO::nlist and
    // llvm::MachO::nlist_64
    // The low 3 bits are the for the REFERENCE_TYPE.
    REFERENCE_TYPE = 0x7,
    REFERENCE_FLAG_UNDEFINED_NON_LAZY = 0,
    REFERENCE_FLAG_UNDEFINED_LAZY = 1,
    REFERENCE_FLAG_DEFINED = 2,
    REFERENCE_FLAG_PRIVATE_DEFINED = 3,
    REFERENCE_FLAG_PRIVATE_UNDEFINED_NON_LAZY = 4,
    REFERENCE_FLAG_PRIVATE_UNDEFINED_LAZY = 5,
    // Flag bits (some overlap with the library ordinal bits).
    N_ARM_THUMB_DEF = 0x0008u,
    REFERENCED_DYNAMICALLY = 0x0010u,
    N_NO_DEAD_STRIP = 0x0020u,
    N_WEAK_REF = 0x0040u,
    N_WEAK_DEF = 0x0080u,
    N_SYMBOL_RESOLVER = 0x0100u,
    N_ALT_ENTRY = 0x0200u,
    // For undefined symbols coming from libraries, see GET_LIBRARY_ORDINAL()
    // as these are in the top 8 bits.
    SELF_LIBRARY_ORDINAL = 0x0,
    MAX_LIBRARY_ORDINAL = 0xfd,
    DYNAMIC_LOOKUP_ORDINAL = 0xfe,
    EXECUTABLE_ORDINAL = 0xff
  };
  
  enum StabType {
    // Constant values for the "n_type" field in llvm::MachO::nlist and
    // llvm::MachO::nlist_64 when "(n_type & N_STAB) != 0"
    N_GSYM = 0x20u,
    N_FNAME = 0x22u,
    N_FUN = 0x24u,
    N_STSYM = 0x26u,
    N_LCSYM = 0x28u,
    N_BNSYM = 0x2Eu,
    N_PC = 0x30u,
    N_AST = 0x32u,
    N_OPT = 0x3Cu,
    N_RSYM = 0x40u,
    N_SLINE = 0x44u,
    N_ENSYM = 0x4Eu,
    N_SSYM = 0x60u,
    N_SO = 0x64u,
    N_OSO = 0x66u,
    N_LSYM = 0x80u,
    N_BINCL = 0x82u,
    N_SOL = 0x84u,
    N_PARAMS = 0x86u,
    N_VERSION = 0x88u,
    N_OLEVEL = 0x8Au,
    N_PSYM = 0xA0u,
    N_EINCL = 0xA2u,
    N_ENTRY = 0xA4u,
    N_LBRAC = 0xC0u,
    N_EXCL = 0xC2u,
    N_RBRAC = 0xE0u,
    N_BCOMM = 0xE2u,
    N_ECOMM = 0xE4u,
    N_ECOML = 0xE8u,
    N_LENG = 0xFEu
  };
  
  enum : uint32_t {
    // Constant values for the r_symbolnum field in an
    // llvm::MachO::relocation_info structure when r_extern is 0.
    R_ABS = 0,
  
    // Constant bits for the r_address field in an
    // llvm::MachO::relocation_info structure.
    R_SCATTERED = 0x80000000
  };
  
  enum RelocationInfoType {
    // Constant values for the r_type field in an
    // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
    // structure.
    GENERIC_RELOC_VANILLA = 0,
    GENERIC_RELOC_PAIR = 1,
    GENERIC_RELOC_SECTDIFF = 2,
    GENERIC_RELOC_PB_LA_PTR = 3,
    GENERIC_RELOC_LOCAL_SECTDIFF = 4,
    GENERIC_RELOC_TLV = 5,
  
    // Constant values for the r_type field in a PowerPC architecture
    // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
    // structure.
    PPC_RELOC_VANILLA = GENERIC_RELOC_VANILLA,
    PPC_RELOC_PAIR = GENERIC_RELOC_PAIR,
    PPC_RELOC_BR14 = 2,
    PPC_RELOC_BR24 = 3,
    PPC_RELOC_HI16 = 4,
    PPC_RELOC_LO16 = 5,
    PPC_RELOC_HA16 = 6,
    PPC_RELOC_LO14 = 7,
    PPC_RELOC_SECTDIFF = 8,
    PPC_RELOC_PB_LA_PTR = 9,
    PPC_RELOC_HI16_SECTDIFF = 10,
    PPC_RELOC_LO16_SECTDIFF = 11,
    PPC_RELOC_HA16_SECTDIFF = 12,
    PPC_RELOC_JBSR = 13,
    PPC_RELOC_LO14_SECTDIFF = 14,
    PPC_RELOC_LOCAL_SECTDIFF = 15,
  
    // Constant values for the r_type field in an ARM architecture
    // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
    // structure.
    ARM_RELOC_VANILLA = GENERIC_RELOC_VANILLA,
    ARM_RELOC_PAIR = GENERIC_RELOC_PAIR,
    ARM_RELOC_SECTDIFF = GENERIC_RELOC_SECTDIFF,
    ARM_RELOC_LOCAL_SECTDIFF = 3,
    ARM_RELOC_PB_LA_PTR = 4,
    ARM_RELOC_BR24 = 5,
    ARM_THUMB_RELOC_BR22 = 6,
    ARM_THUMB_32BIT_BRANCH = 7, // obsolete
    ARM_RELOC_HALF = 8,
    ARM_RELOC_HALF_SECTDIFF = 9,
  
    // Constant values for the r_type field in an ARM64 architecture
    // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
    // structure.
  
    // For pointers.
    ARM64_RELOC_UNSIGNED = 0,
    // Must be followed by an ARM64_RELOC_UNSIGNED
    ARM64_RELOC_SUBTRACTOR = 1,
    // A B/BL instruction with 26-bit displacement.
    ARM64_RELOC_BRANCH26 = 2,
    // PC-rel distance to page of target.
    ARM64_RELOC_PAGE21 = 3,
    // Offset within page, scaled by r_length.
    ARM64_RELOC_PAGEOFF12 = 4,
    // PC-rel distance to page of GOT slot.
    ARM64_RELOC_GOT_LOAD_PAGE21 = 5,
    // Offset within page of GOT slot, scaled by r_length.
    ARM64_RELOC_GOT_LOAD_PAGEOFF12 = 6,
    // For pointers to GOT slots.
    ARM64_RELOC_POINTER_TO_GOT = 7,
    // PC-rel distance to page of TLVP slot.
    ARM64_RELOC_TLVP_LOAD_PAGE21 = 8,
    // Offset within page of TLVP slot, scaled by r_length.
    ARM64_RELOC_TLVP_LOAD_PAGEOFF12 = 9,
    // Must be followed by ARM64_RELOC_PAGE21 or ARM64_RELOC_PAGEOFF12.
    ARM64_RELOC_ADDEND = 10,
  
    // Constant values for the r_type field in an x86_64 architecture
    // llvm::MachO::relocation_info or llvm::MachO::scattered_relocation_info
    // structure
    X86_64_RELOC_UNSIGNED = 0,
    X86_64_RELOC_SIGNED = 1,
    X86_64_RELOC_BRANCH = 2,
    X86_64_RELOC_GOT_LOAD = 3,
    X86_64_RELOC_GOT = 4,
    X86_64_RELOC_SUBTRACTOR = 5,
    X86_64_RELOC_SIGNED_1 = 6,
    X86_64_RELOC_SIGNED_2 = 7,
    X86_64_RELOC_SIGNED_4 = 8,
    X86_64_RELOC_TLV = 9
  };
  
  // Values for segment_command.initprot.
  // From <mach/vm_prot.h>
  enum { VM_PROT_READ = 0x1, VM_PROT_WRITE = 0x2, VM_PROT_EXECUTE = 0x4 };
  
  // Values for platform field in build_version_command.
  enum PlatformType {
    PLATFORM_MACOS = 1,
    PLATFORM_IOS = 2,
    PLATFORM_TVOS = 3,
    PLATFORM_WATCHOS = 4,
    PLATFORM_BRIDGEOS = 5
  };
  
  // Values for tools enum in build_tool_version.
  enum { TOOL_CLANG = 1, TOOL_SWIFT = 2, TOOL_LD = 3 };
  
  // Structs from <mach-o/loader.h>
  
  struct mach_header {
    uint32_t magic;
    uint32_t cputype;
    uint32_t cpusubtype;
    uint32_t filetype;
    uint32_t ncmds;
    uint32_t sizeofcmds;
    uint32_t flags;
  };
  
  struct mach_header_64 {
    uint32_t magic;
    uint32_t cputype;
    uint32_t cpusubtype;
    uint32_t filetype;
    uint32_t ncmds;
    uint32_t sizeofcmds;
    uint32_t flags;
    uint32_t reserved;
  };
  
  struct load_command {
    uint32_t cmd;
    uint32_t cmdsize;
  };
  
  struct segment_command {
    uint32_t cmd;
    uint32_t cmdsize;
    char segname[16];
    uint32_t vmaddr;
    uint32_t vmsize;
    uint32_t fileoff;
    uint32_t filesize;
    uint32_t maxprot;
    uint32_t initprot;
    uint32_t nsects;
    uint32_t flags;
  };
  
  struct segment_command_64 {
    uint32_t cmd;
    uint32_t cmdsize;
    char segname[16];
    uint64_t vmaddr;
    uint64_t vmsize;
    uint64_t fileoff;
    uint64_t filesize;
    uint32_t maxprot;
    uint32_t initprot;
    uint32_t nsects;
    uint32_t flags;
  };
  
  struct section {
    char sectname[16];
    char segname[16];
    uint32_t addr;
    uint32_t size;
    uint32_t offset;
    uint32_t align;
    uint32_t reloff;
    uint32_t nreloc;
    uint32_t flags;
    uint32_t reserved1;
    uint32_t reserved2;
  };
  
  struct section_64 {
    char sectname[16];
    char segname[16];
    uint64_t addr;
    uint64_t size;
    uint32_t offset;
    uint32_t align;
    uint32_t reloff;
    uint32_t nreloc;
    uint32_t flags;
    uint32_t reserved1;
    uint32_t reserved2;
    uint32_t reserved3;
  };
  
  struct fvmlib {
    uint32_t name;
    uint32_t minor_version;
    uint32_t header_addr;
  };
  
  // The fvmlib_command is obsolete and no longer supported.
  struct fvmlib_command {
    uint32_t cmd;
    uint32_t cmdsize;
    struct fvmlib fvmlib;
  };
  
  struct dylib {
    uint32_t name;
    uint32_t timestamp;
    uint32_t current_version;
    uint32_t compatibility_version;
  };
  
  struct dylib_command {
    uint32_t cmd;
    uint32_t cmdsize;
    struct dylib dylib;
  };
  
  struct sub_framework_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t umbrella;
  };
  
  struct sub_client_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t client;
  };
  
  struct sub_umbrella_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t sub_umbrella;
  };
  
  struct sub_library_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t sub_library;
  };
  
  // The prebound_dylib_command is obsolete and no longer supported.
  struct prebound_dylib_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t name;
    uint32_t nmodules;
    uint32_t linked_modules;
  };
  
  struct dylinker_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t name;
  };
  
  struct thread_command {
    uint32_t cmd;
    uint32_t cmdsize;
  };
  
  struct routines_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t init_address;
    uint32_t init_module;
    uint32_t reserved1;
    uint32_t reserved2;
    uint32_t reserved3;
    uint32_t reserved4;
    uint32_t reserved5;
    uint32_t reserved6;
  };
  
  struct routines_command_64 {
    uint32_t cmd;
    uint32_t cmdsize;
    uint64_t init_address;
    uint64_t init_module;
    uint64_t reserved1;
    uint64_t reserved2;
    uint64_t reserved3;
    uint64_t reserved4;
    uint64_t reserved5;
    uint64_t reserved6;
  };
  
  struct symtab_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t symoff;
    uint32_t nsyms;
    uint32_t stroff;
    uint32_t strsize;
  };
  
  struct dysymtab_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t ilocalsym;
    uint32_t nlocalsym;
    uint32_t iextdefsym;
    uint32_t nextdefsym;
    uint32_t iundefsym;
    uint32_t nundefsym;
    uint32_t tocoff;
    uint32_t ntoc;
    uint32_t modtaboff;
    uint32_t nmodtab;
    uint32_t extrefsymoff;
    uint32_t nextrefsyms;
    uint32_t indirectsymoff;
    uint32_t nindirectsyms;
    uint32_t extreloff;
    uint32_t nextrel;
    uint32_t locreloff;
    uint32_t nlocrel;
  };
  
  struct dylib_table_of_contents {
    uint32_t symbol_index;
    uint32_t module_index;
  };
  
  struct dylib_module {
    uint32_t module_name;
    uint32_t iextdefsym;
    uint32_t nextdefsym;
    uint32_t irefsym;
    uint32_t nrefsym;
    uint32_t ilocalsym;
    uint32_t nlocalsym;
    uint32_t iextrel;
    uint32_t nextrel;
    uint32_t iinit_iterm;
    uint32_t ninit_nterm;
    uint32_t objc_module_info_addr;
    uint32_t objc_module_info_size;
  };
  
  struct dylib_module_64 {
    uint32_t module_name;
    uint32_t iextdefsym;
    uint32_t nextdefsym;
    uint32_t irefsym;
    uint32_t nrefsym;
    uint32_t ilocalsym;
    uint32_t nlocalsym;
    uint32_t iextrel;
    uint32_t nextrel;
    uint32_t iinit_iterm;
    uint32_t ninit_nterm;
    uint32_t objc_module_info_size;
    uint64_t objc_module_info_addr;
  };
  
  struct dylib_reference {
    uint32_t isym : 24, flags : 8;
  };
  
  // The twolevel_hints_command is obsolete and no longer supported.
  struct twolevel_hints_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t offset;
    uint32_t nhints;
  };
  
  // The twolevel_hints_command is obsolete and no longer supported.
  struct twolevel_hint {
    uint32_t isub_image : 8, itoc : 24;
  };
  
  // The prebind_cksum_command is obsolete and no longer supported.
  struct prebind_cksum_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t cksum;
  };
  
  struct uuid_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint8_t uuid[16];
  };
  
  struct rpath_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t path;
  };
  
  struct linkedit_data_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t dataoff;
    uint32_t datasize;
  };
  
  struct data_in_code_entry {
    uint32_t offset;
    uint16_t length;
    uint16_t kind;
  };
  
  struct source_version_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint64_t version;
  };
  
  struct encryption_info_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t cryptoff;
    uint32_t cryptsize;
    uint32_t cryptid;
  };
  
  struct encryption_info_command_64 {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t cryptoff;
    uint32_t cryptsize;
    uint32_t cryptid;
    uint32_t pad;
  };
  
  struct version_min_command {
    uint32_t cmd;     // LC_VERSION_MIN_MACOSX or
                      // LC_VERSION_MIN_IPHONEOS
    uint32_t cmdsize; // sizeof(struct version_min_command)
    uint32_t version; // X.Y.Z is encoded in nibbles xxxx.yy.zz
    uint32_t sdk;     // X.Y.Z is encoded in nibbles xxxx.yy.zz
  };
  
  struct note_command {
    uint32_t cmd;        // LC_NOTE
    uint32_t cmdsize;    // sizeof(struct note_command)
    char data_owner[16]; // owner name for this LC_NOTE
    uint64_t offset;     // file offset of this data
    uint64_t size;       // length of data region
  };
  
  struct build_tool_version {
    uint32_t tool;    // enum for the tool
    uint32_t version; // version of the tool
  };
  
  struct build_version_command {
    uint32_t cmd;      // LC_BUILD_VERSION
    uint32_t cmdsize;  // sizeof(struct build_version_command) +
                       // ntools * sizeof(struct build_tool_version)
    uint32_t platform; // platform
    uint32_t minos;    // X.Y.Z is encoded in nibbles xxxx.yy.zz
    uint32_t sdk;      // X.Y.Z is encoded in nibbles xxxx.yy.zz
    uint32_t ntools;   // number of tool entries following this
  };
  
  struct dyld_info_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t rebase_off;
    uint32_t rebase_size;
    uint32_t bind_off;
    uint32_t bind_size;
    uint32_t weak_bind_off;
    uint32_t weak_bind_size;
    uint32_t lazy_bind_off;
    uint32_t lazy_bind_size;
    uint32_t export_off;
    uint32_t export_size;
  };
  
  struct linker_option_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t count;
  };
  
  // The symseg_command is obsolete and no longer supported.
  struct symseg_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t offset;
    uint32_t size;
  };
  
  // The ident_command is obsolete and no longer supported.
  struct ident_command {
    uint32_t cmd;
    uint32_t cmdsize;
  };
  
  // The fvmfile_command is obsolete and no longer supported.
  struct fvmfile_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint32_t name;
    uint32_t header_addr;
  };
  
  struct tlv_descriptor_32 {
    uint32_t thunk;
    uint32_t key;
    uint32_t offset;
  };
  
  struct tlv_descriptor_64 {
    uint64_t thunk;
    uint64_t key;
    uint64_t offset;
  };
  
  struct tlv_descriptor {
    uintptr_t thunk;
    uintptr_t key;
    uintptr_t offset;
  };
  
  struct entry_point_command {
    uint32_t cmd;
    uint32_t cmdsize;
    uint64_t entryoff;
    uint64_t stacksize;
  };
  
  // Structs from <mach-o/fat.h>
  struct fat_header {
    uint32_t magic;
    uint32_t nfat_arch;
  };
  
  struct fat_arch {
    uint32_t cputype;
    uint32_t cpusubtype;
    uint32_t offset;
    uint32_t size;
    uint32_t align;
  };
  
  struct fat_arch_64 {
    uint32_t cputype;
    uint32_t cpusubtype;
    uint64_t offset;
    uint64_t size;
    uint32_t align;
    uint32_t reserved;
  };
  
  // Structs from <mach-o/reloc.h>
  struct relocation_info {
    int32_t r_address;
    uint32_t r_symbolnum : 24, r_pcrel : 1, r_length : 2, r_extern : 1,
        r_type : 4;
  };
  
  struct scattered_relocation_info {
  #if defined(BYTE_ORDER) && defined(BIG_ENDIAN) && (BYTE_ORDER == BIG_ENDIAN)
    uint32_t r_scattered : 1, r_pcrel : 1, r_length : 2, r_type : 4,
        r_address : 24;
  #else
    uint32_t r_address : 24, r_type : 4, r_length : 2, r_pcrel : 1,
        r_scattered : 1;
  #endif
    int32_t r_value;
  };
  
  // Structs NOT from <mach-o/reloc.h>, but that make LLVM's life easier
  struct any_relocation_info {
    uint32_t r_word0, r_word1;
  };
  
  // Structs from <mach-o/nlist.h>
  struct nlist_base {
    uint32_t n_strx;
    uint8_t n_type;
    uint8_t n_sect;
    uint16_t n_desc;
  };
  
  struct nlist {
    uint32_t n_strx;
    uint8_t n_type;
    uint8_t n_sect;
    int16_t n_desc;
    uint32_t n_value;
  };
  
  struct nlist_64 {
    uint32_t n_strx;
    uint8_t n_type;
    uint8_t n_sect;
    uint16_t n_desc;
    uint64_t n_value;
  };
  
  // Byte order swapping functions for MachO structs
  
  inline void swapStruct(fat_header &mh) {
    sys::swapByteOrder(mh.magic);
    sys::swapByteOrder(mh.nfat_arch);
  }
  
  inline void swapStruct(fat_arch &mh) {
    sys::swapByteOrder(mh.cputype);
    sys::swapByteOrder(mh.cpusubtype);
    sys::swapByteOrder(mh.offset);
    sys::swapByteOrder(mh.size);
    sys::swapByteOrder(mh.align);
  }
  
  inline void swapStruct(fat_arch_64 &mh) {
    sys::swapByteOrder(mh.cputype);
    sys::swapByteOrder(mh.cpusubtype);
    sys::swapByteOrder(mh.offset);
    sys::swapByteOrder(mh.size);
    sys::swapByteOrder(mh.align);
    sys::swapByteOrder(mh.reserved);
  }
  
  inline void swapStruct(mach_header &mh) {
    sys::swapByteOrder(mh.magic);
    sys::swapByteOrder(mh.cputype);
    sys::swapByteOrder(mh.cpusubtype);
    sys::swapByteOrder(mh.filetype);
    sys::swapByteOrder(mh.ncmds);
    sys::swapByteOrder(mh.sizeofcmds);
    sys::swapByteOrder(mh.flags);
  }
  
  inline void swapStruct(mach_header_64 &H) {
    sys::swapByteOrder(H.magic);
    sys::swapByteOrder(H.cputype);
    sys::swapByteOrder(H.cpusubtype);
    sys::swapByteOrder(H.filetype);
    sys::swapByteOrder(H.ncmds);
    sys::swapByteOrder(H.sizeofcmds);
    sys::swapByteOrder(H.flags);
    sys::swapByteOrder(H.reserved);
  }
  
  inline void swapStruct(load_command &lc) {
    sys::swapByteOrder(lc.cmd);
    sys::swapByteOrder(lc.cmdsize);
  }
  
  inline void swapStruct(symtab_command &lc) {
    sys::swapByteOrder(lc.cmd);
    sys::swapByteOrder(lc.cmdsize);
    sys::swapByteOrder(lc.symoff);
    sys::swapByteOrder(lc.nsyms);
    sys::swapByteOrder(lc.stroff);
    sys::swapByteOrder(lc.strsize);
  }
  
  inline void swapStruct(segment_command_64 &seg) {
    sys::swapByteOrder(seg.cmd);
    sys::swapByteOrder(seg.cmdsize);
    sys::swapByteOrder(seg.vmaddr);
    sys::swapByteOrder(seg.vmsize);
    sys::swapByteOrder(seg.fileoff);
    sys::swapByteOrder(seg.filesize);
    sys::swapByteOrder(seg.maxprot);
    sys::swapByteOrder(seg.initprot);
    sys::swapByteOrder(seg.nsects);
    sys::swapByteOrder(seg.flags);
  }
  
  inline void swapStruct(segment_command &seg) {
    sys::swapByteOrder(seg.cmd);
    sys::swapByteOrder(seg.cmdsize);
    sys::swapByteOrder(seg.vmaddr);
    sys::swapByteOrder(seg.vmsize);
    sys::swapByteOrder(seg.fileoff);
    sys::swapByteOrder(seg.filesize);
    sys::swapByteOrder(seg.maxprot);
    sys::swapByteOrder(seg.initprot);
    sys::swapByteOrder(seg.nsects);
    sys::swapByteOrder(seg.flags);
  }
  
  inline void swapStruct(section_64 &sect) {
    sys::swapByteOrder(sect.addr);
    sys::swapByteOrder(sect.size);
    sys::swapByteOrder(sect.offset);
    sys::swapByteOrder(sect.align);
    sys::swapByteOrder(sect.reloff);
    sys::swapByteOrder(sect.nreloc);
    sys::swapByteOrder(sect.flags);
    sys::swapByteOrder(sect.reserved1);
    sys::swapByteOrder(sect.reserved2);
  }
  
  inline void swapStruct(section &sect) {
    sys::swapByteOrder(sect.addr);
    sys::swapByteOrder(sect.size);
    sys::swapByteOrder(sect.offset);
    sys::swapByteOrder(sect.align);
    sys::swapByteOrder(sect.reloff);
    sys::swapByteOrder(sect.nreloc);
    sys::swapByteOrder(sect.flags);
    sys::swapByteOrder(sect.reserved1);
    sys::swapByteOrder(sect.reserved2);
  }
  
  inline void swapStruct(dyld_info_command &info) {
    sys::swapByteOrder(info.cmd);
    sys::swapByteOrder(info.cmdsize);
    sys::swapByteOrder(info.rebase_off);
    sys::swapByteOrder(info.rebase_size);
    sys::swapByteOrder(info.bind_off);
    sys::swapByteOrder(info.bind_size);
    sys::swapByteOrder(info.weak_bind_off);
    sys::swapByteOrder(info.weak_bind_size);
    sys::swapByteOrder(info.lazy_bind_off);
    sys::swapByteOrder(info.lazy_bind_size);
    sys::swapByteOrder(info.export_off);
    sys::swapByteOrder(info.export_size);
  }
  
  inline void swapStruct(dylib_command &d) {
    sys::swapByteOrder(d.cmd);
    sys::swapByteOrder(d.cmdsize);
    sys::swapByteOrder(d.dylib.name);
    sys::swapByteOrder(d.dylib.timestamp);
    sys::swapByteOrder(d.dylib.current_version);
    sys::swapByteOrder(d.dylib.compatibility_version);
  }
  
  inline void swapStruct(sub_framework_command &s) {
    sys::swapByteOrder(s.cmd);
    sys::swapByteOrder(s.cmdsize);
    sys::swapByteOrder(s.umbrella);
  }
  
  inline void swapStruct(sub_umbrella_command &s) {
    sys::swapByteOrder(s.cmd);
    sys::swapByteOrder(s.cmdsize);
    sys::swapByteOrder(s.sub_umbrella);
  }
  
  inline void swapStruct(sub_library_command &s) {
    sys::swapByteOrder(s.cmd);
    sys::swapByteOrder(s.cmdsize);
    sys::swapByteOrder(s.sub_library);
  }
  
  inline void swapStruct(sub_client_command &s) {
    sys::swapByteOrder(s.cmd);
    sys::swapByteOrder(s.cmdsize);
    sys::swapByteOrder(s.client);
  }
  
  inline void swapStruct(routines_command &r) {
    sys::swapByteOrder(r.cmd);
    sys::swapByteOrder(r.cmdsize);
    sys::swapByteOrder(r.init_address);
    sys::swapByteOrder(r.init_module);
    sys::swapByteOrder(r.reserved1);
    sys::swapByteOrder(r.reserved2);
    sys::swapByteOrder(r.reserved3);
    sys::swapByteOrder(r.reserved4);
    sys::swapByteOrder(r.reserved5);
    sys::swapByteOrder(r.reserved6);
  }
  
  inline void swapStruct(routines_command_64 &r) {
    sys::swapByteOrder(r.cmd);
    sys::swapByteOrder(r.cmdsize);
    sys::swapByteOrder(r.init_address);
    sys::swapByteOrder(r.init_module);
    sys::swapByteOrder(r.reserved1);
    sys::swapByteOrder(r.reserved2);
    sys::swapByteOrder(r.reserved3);
    sys::swapByteOrder(r.reserved4);
    sys::swapByteOrder(r.reserved5);
    sys::swapByteOrder(r.reserved6);
  }
  
  inline void swapStruct(thread_command &t) {
    sys::swapByteOrder(t.cmd);
    sys::swapByteOrder(t.cmdsize);
  }
  
  inline void swapStruct(dylinker_command &d) {
    sys::swapByteOrder(d.cmd);
    sys::swapByteOrder(d.cmdsize);
    sys::swapByteOrder(d.name);
  }
  
  inline void swapStruct(uuid_command &u) {
    sys::swapByteOrder(u.cmd);
    sys::swapByteOrder(u.cmdsize);
  }
  
  inline void swapStruct(rpath_command &r) {
    sys::swapByteOrder(r.cmd);
    sys::swapByteOrder(r.cmdsize);
    sys::swapByteOrder(r.path);
  }
  
  inline void swapStruct(source_version_command &s) {
    sys::swapByteOrder(s.cmd);
    sys::swapByteOrder(s.cmdsize);
    sys::swapByteOrder(s.version);
  }
  
  inline void swapStruct(entry_point_command &e) {
    sys::swapByteOrder(e.cmd);
    sys::swapByteOrder(e.cmdsize);
    sys::swapByteOrder(e.entryoff);
    sys::swapByteOrder(e.stacksize);
  }
  
  inline void swapStruct(encryption_info_command &e) {
    sys::swapByteOrder(e.cmd);
    sys::swapByteOrder(e.cmdsize);
    sys::swapByteOrder(e.cryptoff);
    sys::swapByteOrder(e.cryptsize);
    sys::swapByteOrder(e.cryptid);
  }
  
  inline void swapStruct(encryption_info_command_64 &e) {
    sys::swapByteOrder(e.cmd);
    sys::swapByteOrder(e.cmdsize);
    sys::swapByteOrder(e.cryptoff);
    sys::swapByteOrder(e.cryptsize);
    sys::swapByteOrder(e.cryptid);
    sys::swapByteOrder(e.pad);
  }
  
  inline void swapStruct(dysymtab_command &dst) {
    sys::swapByteOrder(dst.cmd);
    sys::swapByteOrder(dst.cmdsize);
    sys::swapByteOrder(dst.ilocalsym);
    sys::swapByteOrder(dst.nlocalsym);
    sys::swapByteOrder(dst.iextdefsym);
    sys::swapByteOrder(dst.nextdefsym);
    sys::swapByteOrder(dst.iundefsym);
    sys::swapByteOrder(dst.nundefsym);
    sys::swapByteOrder(dst.tocoff);
    sys::swapByteOrder(dst.ntoc);
    sys::swapByteOrder(dst.modtaboff);
    sys::swapByteOrder(dst.nmodtab);
    sys::swapByteOrder(dst.extrefsymoff);
    sys::swapByteOrder(dst.nextrefsyms);
    sys::swapByteOrder(dst.indirectsymoff);
    sys::swapByteOrder(dst.nindirectsyms);
    sys::swapByteOrder(dst.extreloff);
    sys::swapByteOrder(dst.nextrel);
    sys::swapByteOrder(dst.locreloff);
    sys::swapByteOrder(dst.nlocrel);
  }
  
  inline void swapStruct(any_relocation_info &reloc) {
    sys::swapByteOrder(reloc.r_word0);
    sys::swapByteOrder(reloc.r_word1);
  }
  
  inline void swapStruct(nlist_base &S) {
    sys::swapByteOrder(S.n_strx);
    sys::swapByteOrder(S.n_desc);
  }
  
  inline void swapStruct(nlist &sym) {
    sys::swapByteOrder(sym.n_strx);
    sys::swapByteOrder(sym.n_desc);
    sys::swapByteOrder(sym.n_value);
  }
  
  inline void swapStruct(nlist_64 &sym) {
    sys::swapByteOrder(sym.n_strx);
    sys::swapByteOrder(sym.n_desc);
    sys::swapByteOrder(sym.n_value);
  }
  
  inline void swapStruct(linkedit_data_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.dataoff);
    sys::swapByteOrder(C.datasize);
  }
  
  inline void swapStruct(linker_option_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.count);
  }
  
  inline void swapStruct(version_min_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.version);
    sys::swapByteOrder(C.sdk);
  }
  
  inline void swapStruct(note_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.offset);
    sys::swapByteOrder(C.size);
  }
  
  inline void swapStruct(build_version_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.platform);
    sys::swapByteOrder(C.minos);
    sys::swapByteOrder(C.sdk);
    sys::swapByteOrder(C.ntools);
  }
  
  inline void swapStruct(build_tool_version &C) {
    sys::swapByteOrder(C.tool);
    sys::swapByteOrder(C.version);
  }
  
  inline void swapStruct(data_in_code_entry &C) {
    sys::swapByteOrder(C.offset);
    sys::swapByteOrder(C.length);
    sys::swapByteOrder(C.kind);
  }
  
  inline void swapStruct(uint32_t &C) { sys::swapByteOrder(C); }
  
  // The prebind_cksum_command is obsolete and no longer supported.
  inline void swapStruct(prebind_cksum_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.cksum);
  }
  
  // The twolevel_hints_command is obsolete and no longer supported.
  inline void swapStruct(twolevel_hints_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.offset);
    sys::swapByteOrder(C.nhints);
  }
  
  // The prebound_dylib_command is obsolete and no longer supported.
  inline void swapStruct(prebound_dylib_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.name);
    sys::swapByteOrder(C.nmodules);
    sys::swapByteOrder(C.linked_modules);
  }
  
  // The fvmfile_command is obsolete and no longer supported.
  inline void swapStruct(fvmfile_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.name);
    sys::swapByteOrder(C.header_addr);
  }
  
  // The symseg_command is obsolete and no longer supported.
  inline void swapStruct(symseg_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    sys::swapByteOrder(C.offset);
    sys::swapByteOrder(C.size);
  }
  
  // The ident_command is obsolete and no longer supported.
  inline void swapStruct(ident_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
  }
  
  inline void swapStruct(fvmlib &C) {
    sys::swapByteOrder(C.name);
    sys::swapByteOrder(C.minor_version);
    sys::swapByteOrder(C.header_addr);
  }
  
  // The fvmlib_command is obsolete and no longer supported.
  inline void swapStruct(fvmlib_command &C) {
    sys::swapByteOrder(C.cmd);
    sys::swapByteOrder(C.cmdsize);
    swapStruct(C.fvmlib);
  }
  
  // Get/Set functions from <mach-o/nlist.h>
  
  inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) {
    return (((n_desc) >> 8u) & 0xffu);
  }
  
  inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) {
    n_desc = (((n_desc)&0x00ff) | (((ordinal)&0xff) << 8));
  }
  
  inline uint8_t GET_COMM_ALIGN(uint16_t n_desc) {
    return (n_desc >> 8u) & 0x0fu;
  }
  
  inline void SET_COMM_ALIGN(uint16_t &n_desc, uint8_t align) {
    n_desc = ((n_desc & 0xf0ffu) | ((align & 0x0fu) << 8u));
  }
  
  // Enums from <mach/machine.h>
  enum : uint32_t {
    // Capability bits used in the definition of cpu_type.
    CPU_ARCH_MASK = 0xff000000, // Mask for architecture bits
    CPU_ARCH_ABI64 = 0x01000000 // 64 bit ABI
  };
  
  // Constants for the cputype field.
  enum CPUType {
    CPU_TYPE_ANY = -1,
    CPU_TYPE_X86 = 7,
    CPU_TYPE_I386 = CPU_TYPE_X86,
    CPU_TYPE_X86_64 = CPU_TYPE_X86 | CPU_ARCH_ABI64,
    /* CPU_TYPE_MIPS      = 8, */
    CPU_TYPE_MC98000 = 10, // Old Motorola PowerPC
    CPU_TYPE_ARM = 12,
    CPU_TYPE_ARM64 = CPU_TYPE_ARM | CPU_ARCH_ABI64,
    CPU_TYPE_SPARC = 14,
    CPU_TYPE_POWERPC = 18,
    CPU_TYPE_POWERPC64 = CPU_TYPE_POWERPC | CPU_ARCH_ABI64
  };
  
  enum : uint32_t {
    // Capability bits used in the definition of cpusubtype.
    CPU_SUBTYPE_MASK = 0xff000000,  // Mask for architecture bits
    CPU_SUBTYPE_LIB64 = 0x80000000, // 64 bit libraries
  
    // Special CPU subtype constants.
    CPU_SUBTYPE_MULTIPLE = ~0u
  };
  
  // Constants for the cpusubtype field.
  enum CPUSubTypeX86 {
    CPU_SUBTYPE_I386_ALL = 3,
    CPU_SUBTYPE_386 = 3,
    CPU_SUBTYPE_486 = 4,
    CPU_SUBTYPE_486SX = 0x84,
    CPU_SUBTYPE_586 = 5,
    CPU_SUBTYPE_PENT = CPU_SUBTYPE_586,
    CPU_SUBTYPE_PENTPRO = 0x16,
    CPU_SUBTYPE_PENTII_M3 = 0x36,
    CPU_SUBTYPE_PENTII_M5 = 0x56,
    CPU_SUBTYPE_CELERON = 0x67,
    CPU_SUBTYPE_CELERON_MOBILE = 0x77,
    CPU_SUBTYPE_PENTIUM_3 = 0x08,
    CPU_SUBTYPE_PENTIUM_3_M = 0x18,
    CPU_SUBTYPE_PENTIUM_3_XEON = 0x28,
    CPU_SUBTYPE_PENTIUM_M = 0x09,
    CPU_SUBTYPE_PENTIUM_4 = 0x0a,
    CPU_SUBTYPE_PENTIUM_4_M = 0x1a,
    CPU_SUBTYPE_ITANIUM = 0x0b,
    CPU_SUBTYPE_ITANIUM_2 = 0x1b,
    CPU_SUBTYPE_XEON = 0x0c,
    CPU_SUBTYPE_XEON_MP = 0x1c,
  
    CPU_SUBTYPE_X86_ALL = 3,
    CPU_SUBTYPE_X86_64_ALL = 3,
    CPU_SUBTYPE_X86_ARCH1 = 4,
    CPU_SUBTYPE_X86_64_H = 8
  };
  inline int CPU_SUBTYPE_INTEL(int Family, int Model) {
    return Family | (Model << 4);
  }
  inline int CPU_SUBTYPE_INTEL_FAMILY(CPUSubTypeX86 ST) {
    return ((int)ST) & 0x0f;
  }
  inline int CPU_SUBTYPE_INTEL_MODEL(CPUSubTypeX86 ST) { return ((int)ST) >> 4; }
  enum { CPU_SUBTYPE_INTEL_FAMILY_MAX = 15, CPU_SUBTYPE_INTEL_MODEL_ALL = 0 };
  
  enum CPUSubTypeARM {
    CPU_SUBTYPE_ARM_ALL = 0,
    CPU_SUBTYPE_ARM_V4T = 5,
    CPU_SUBTYPE_ARM_V6 = 6,
    CPU_SUBTYPE_ARM_V5 = 7,
    CPU_SUBTYPE_ARM_V5TEJ = 7,
    CPU_SUBTYPE_ARM_XSCALE = 8,
    CPU_SUBTYPE_ARM_V7 = 9,
    //  unused  ARM_V7F     = 10,
    CPU_SUBTYPE_ARM_V7S = 11,
    CPU_SUBTYPE_ARM_V7K = 12,
    CPU_SUBTYPE_ARM_V6M = 14,
    CPU_SUBTYPE_ARM_V7M = 15,
    CPU_SUBTYPE_ARM_V7EM = 16
  };
  
  enum CPUSubTypeARM64 { CPU_SUBTYPE_ARM64_ALL = 0 };
  
  enum CPUSubTypeSPARC { CPU_SUBTYPE_SPARC_ALL = 0 };
  
  enum CPUSubTypePowerPC {
    CPU_SUBTYPE_POWERPC_ALL = 0,
    CPU_SUBTYPE_POWERPC_601 = 1,
    CPU_SUBTYPE_POWERPC_602 = 2,
    CPU_SUBTYPE_POWERPC_603 = 3,
    CPU_SUBTYPE_POWERPC_603e = 4,
    CPU_SUBTYPE_POWERPC_603ev = 5,
    CPU_SUBTYPE_POWERPC_604 = 6,
    CPU_SUBTYPE_POWERPC_604e = 7,
    CPU_SUBTYPE_POWERPC_620 = 8,
    CPU_SUBTYPE_POWERPC_750 = 9,
    CPU_SUBTYPE_POWERPC_7400 = 10,
    CPU_SUBTYPE_POWERPC_7450 = 11,
    CPU_SUBTYPE_POWERPC_970 = 100,
  
    CPU_SUBTYPE_MC980000_ALL = CPU_SUBTYPE_POWERPC_ALL,
    CPU_SUBTYPE_MC98601 = CPU_SUBTYPE_POWERPC_601
  };
  
  struct x86_thread_state32_t {
    uint32_t eax;
    uint32_t ebx;
    uint32_t ecx;
    uint32_t edx;
    uint32_t edi;
    uint32_t esi;
    uint32_t ebp;
    uint32_t esp;
    uint32_t ss;
    uint32_t eflags;
    uint32_t eip;
    uint32_t cs;
    uint32_t ds;
    uint32_t es;
    uint32_t fs;
    uint32_t gs;
  };
  
  struct x86_thread_state64_t {
    uint64_t rax;
    uint64_t rbx;
    uint64_t rcx;
    uint64_t rdx;
    uint64_t rdi;
    uint64_t rsi;
    uint64_t rbp;
    uint64_t rsp;
    uint64_t r8;
    uint64_t r9;
    uint64_t r10;
    uint64_t r11;
    uint64_t r12;
    uint64_t r13;
    uint64_t r14;
    uint64_t r15;
    uint64_t rip;
    uint64_t rflags;
    uint64_t cs;
    uint64_t fs;
    uint64_t gs;
  };
  
  enum x86_fp_control_precis {
    x86_FP_PREC_24B = 0,
    x86_FP_PREC_53B = 2,
    x86_FP_PREC_64B = 3
  };
  
  enum x86_fp_control_rc {
    x86_FP_RND_NEAR = 0,
    x86_FP_RND_DOWN = 1,
    x86_FP_RND_UP = 2,
    x86_FP_CHOP = 3
  };
  
  struct fp_control_t {
    unsigned short invalid : 1, denorm : 1, zdiv : 1, ovrfl : 1, undfl : 1,
        precis : 1, : 2, pc : 2, rc : 2, : 1, : 3;
  };
  
  struct fp_status_t {
    unsigned short invalid : 1, denorm : 1, zdiv : 1, ovrfl : 1, undfl : 1,
        precis : 1, stkflt : 1, errsumm : 1, c0 : 1, c1 : 1, c2 : 1, tos : 3,
        c3 : 1, busy : 1;
  };
  
  struct mmst_reg_t {
    char mmst_reg[10];
    char mmst_rsrv[6];
  };
  
  struct xmm_reg_t {
    char xmm_reg[16];
  };
  
  struct x86_float_state64_t {
    int32_t fpu_reserved[2];
    fp_control_t fpu_fcw;
    fp_status_t fpu_fsw;
    uint8_t fpu_ftw;
    uint8_t fpu_rsrv1;
    uint16_t fpu_fop;
    uint32_t fpu_ip;
    uint16_t fpu_cs;
    uint16_t fpu_rsrv2;
    uint32_t fpu_dp;
    uint16_t fpu_ds;
    uint16_t fpu_rsrv3;
    uint32_t fpu_mxcsr;
    uint32_t fpu_mxcsrmask;
    mmst_reg_t fpu_stmm0;
    mmst_reg_t fpu_stmm1;
    mmst_reg_t fpu_stmm2;
    mmst_reg_t fpu_stmm3;
    mmst_reg_t fpu_stmm4;
    mmst_reg_t fpu_stmm5;
    mmst_reg_t fpu_stmm6;
    mmst_reg_t fpu_stmm7;
    xmm_reg_t fpu_xmm0;
    xmm_reg_t fpu_xmm1;
    xmm_reg_t fpu_xmm2;
    xmm_reg_t fpu_xmm3;
    xmm_reg_t fpu_xmm4;
    xmm_reg_t fpu_xmm5;
    xmm_reg_t fpu_xmm6;
    xmm_reg_t fpu_xmm7;
    xmm_reg_t fpu_xmm8;
    xmm_reg_t fpu_xmm9;
    xmm_reg_t fpu_xmm10;
    xmm_reg_t fpu_xmm11;
    xmm_reg_t fpu_xmm12;
    xmm_reg_t fpu_xmm13;
    xmm_reg_t fpu_xmm14;
    xmm_reg_t fpu_xmm15;
    char fpu_rsrv4[6 * 16];
    uint32_t fpu_reserved1;
  };
  
  struct x86_exception_state64_t {
    uint16_t trapno;
    uint16_t cpu;
    uint32_t err;
    uint64_t faultvaddr;
  };
  
  inline void swapStruct(x86_thread_state32_t &x) {
    sys::swapByteOrder(x.eax);
    sys::swapByteOrder(x.ebx);
    sys::swapByteOrder(x.ecx);
    sys::swapByteOrder(x.edx);
    sys::swapByteOrder(x.edi);
    sys::swapByteOrder(x.esi);
    sys::swapByteOrder(x.ebp);
    sys::swapByteOrder(x.esp);
    sys::swapByteOrder(x.ss);
    sys::swapByteOrder(x.eflags);
    sys::swapByteOrder(x.eip);
    sys::swapByteOrder(x.cs);
    sys::swapByteOrder(x.ds);
    sys::swapByteOrder(x.es);
    sys::swapByteOrder(x.fs);
    sys::swapByteOrder(x.gs);
  }
  
  inline void swapStruct(x86_thread_state64_t &x) {
    sys::swapByteOrder(x.rax);
    sys::swapByteOrder(x.rbx);
    sys::swapByteOrder(x.rcx);
    sys::swapByteOrder(x.rdx);
    sys::swapByteOrder(x.rdi);
    sys::swapByteOrder(x.rsi);
    sys::swapByteOrder(x.rbp);
    sys::swapByteOrder(x.rsp);
    sys::swapByteOrder(x.r8);
    sys::swapByteOrder(x.r9);
    sys::swapByteOrder(x.r10);
    sys::swapByteOrder(x.r11);
    sys::swapByteOrder(x.r12);
    sys::swapByteOrder(x.r13);
    sys::swapByteOrder(x.r14);
    sys::swapByteOrder(x.r15);
    sys::swapByteOrder(x.rip);
    sys::swapByteOrder(x.rflags);
    sys::swapByteOrder(x.cs);
    sys::swapByteOrder(x.fs);
    sys::swapByteOrder(x.gs);
  }
  
  inline void swapStruct(x86_float_state64_t &x) {
    sys::swapByteOrder(x.fpu_reserved[0]);
    sys::swapByteOrder(x.fpu_reserved[1]);
    // TODO swap: fp_control_t fpu_fcw;
    // TODO swap: fp_status_t fpu_fsw;
    sys::swapByteOrder(x.fpu_fop);
    sys::swapByteOrder(x.fpu_ip);
    sys::swapByteOrder(x.fpu_cs);
    sys::swapByteOrder(x.fpu_rsrv2);
    sys::swapByteOrder(x.fpu_dp);
    sys::swapByteOrder(x.fpu_ds);
    sys::swapByteOrder(x.fpu_rsrv3);
    sys::swapByteOrder(x.fpu_mxcsr);
    sys::swapByteOrder(x.fpu_mxcsrmask);
    sys::swapByteOrder(x.fpu_reserved1);
  }
  
  inline void swapStruct(x86_exception_state64_t &x) {
    sys::swapByteOrder(x.trapno);
    sys::swapByteOrder(x.cpu);
    sys::swapByteOrder(x.err);
    sys::swapByteOrder(x.faultvaddr);
  }
  
  struct x86_state_hdr_t {
    uint32_t flavor;
    uint32_t count;
  };
  
  struct x86_thread_state_t {
    x86_state_hdr_t tsh;
    union {
      x86_thread_state64_t ts64;
      x86_thread_state32_t ts32;
    } uts;
  };
  
  struct x86_float_state_t {
    x86_state_hdr_t fsh;
    union {
      x86_float_state64_t fs64;
    } ufs;
  };
  
  struct x86_exception_state_t {
    x86_state_hdr_t esh;
    union {
      x86_exception_state64_t es64;
    } ues;
  };
  
  inline void swapStruct(x86_state_hdr_t &x) {
    sys::swapByteOrder(x.flavor);
    sys::swapByteOrder(x.count);
  }
  
  enum X86ThreadFlavors {
    x86_THREAD_STATE32 = 1,
    x86_FLOAT_STATE32 = 2,
    x86_EXCEPTION_STATE32 = 3,
    x86_THREAD_STATE64 = 4,
    x86_FLOAT_STATE64 = 5,
    x86_EXCEPTION_STATE64 = 6,
    x86_THREAD_STATE = 7,
    x86_FLOAT_STATE = 8,
    x86_EXCEPTION_STATE = 9,
    x86_DEBUG_STATE32 = 10,
    x86_DEBUG_STATE64 = 11,
    x86_DEBUG_STATE = 12
  };
  
  inline void swapStruct(x86_thread_state_t &x) {
    swapStruct(x.tsh);
    if (x.tsh.flavor == x86_THREAD_STATE64)
      swapStruct(x.uts.ts64);
  }
  
  inline void swapStruct(x86_float_state_t &x) {
    swapStruct(x.fsh);
    if (x.fsh.flavor == x86_FLOAT_STATE64)
      swapStruct(x.ufs.fs64);
  }
  
  inline void swapStruct(x86_exception_state_t &x) {
    swapStruct(x.esh);
    if (x.esh.flavor == x86_EXCEPTION_STATE64)
      swapStruct(x.ues.es64);
  }
  
  const uint32_t x86_THREAD_STATE32_COUNT =
      sizeof(x86_thread_state32_t) / sizeof(uint32_t);
  
  const uint32_t x86_THREAD_STATE64_COUNT =
      sizeof(x86_thread_state64_t) / sizeof(uint32_t);
  const uint32_t x86_FLOAT_STATE64_COUNT =
      sizeof(x86_float_state64_t) / sizeof(uint32_t);
  const uint32_t x86_EXCEPTION_STATE64_COUNT =
      sizeof(x86_exception_state64_t) / sizeof(uint32_t);
  
  const uint32_t x86_THREAD_STATE_COUNT =
      sizeof(x86_thread_state_t) / sizeof(uint32_t);
  const uint32_t x86_FLOAT_STATE_COUNT =
      sizeof(x86_float_state_t) / sizeof(uint32_t);
  const uint32_t x86_EXCEPTION_STATE_COUNT =
      sizeof(x86_exception_state_t) / sizeof(uint32_t);
  
  struct arm_thread_state32_t {
    uint32_t r[13];
    uint32_t sp;
    uint32_t lr;
    uint32_t pc;
    uint32_t cpsr;
  };
  
  inline void swapStruct(arm_thread_state32_t &x) {
    for (int i = 0; i < 13; i++)
      sys::swapByteOrder(x.r[i]);
    sys::swapByteOrder(x.sp);
    sys::swapByteOrder(x.lr);
    sys::swapByteOrder(x.pc);
    sys::swapByteOrder(x.cpsr);
  }
  
  struct arm_thread_state64_t {
    uint64_t x[29];
    uint64_t fp;
    uint64_t lr;
    uint64_t sp;
    uint64_t pc;
    uint32_t cpsr;
    uint32_t pad;
  };
  
  inline void swapStruct(arm_thread_state64_t &x) {
    for (int i = 0; i < 29; i++)
      sys::swapByteOrder(x.x[i]);
    sys::swapByteOrder(x.fp);
    sys::swapByteOrder(x.lr);
    sys::swapByteOrder(x.sp);
    sys::swapByteOrder(x.pc);
    sys::swapByteOrder(x.cpsr);
  }
  
  struct arm_state_hdr_t {
    uint32_t flavor;
    uint32_t count;
  };
  
  struct arm_thread_state_t {
    arm_state_hdr_t tsh;
    union {
      arm_thread_state32_t ts32;
    } uts;
  };
  
  inline void swapStruct(arm_state_hdr_t &x) {
    sys::swapByteOrder(x.flavor);
    sys::swapByteOrder(x.count);
  }
  
  enum ARMThreadFlavors {
    ARM_THREAD_STATE = 1,
    ARM_VFP_STATE = 2,
    ARM_EXCEPTION_STATE = 3,
    ARM_DEBUG_STATE = 4,
    ARN_THREAD_STATE_NONE = 5,
    ARM_THREAD_STATE64 = 6,
    ARM_EXCEPTION_STATE64 = 7
  };
  
  inline void swapStruct(arm_thread_state_t &x) {
    swapStruct(x.tsh);
    if (x.tsh.flavor == ARM_THREAD_STATE)
      swapStruct(x.uts.ts32);
  }
  
  const uint32_t ARM_THREAD_STATE_COUNT =
      sizeof(arm_thread_state32_t) / sizeof(uint32_t);
  
  const uint32_t ARM_THREAD_STATE64_COUNT =
      sizeof(arm_thread_state64_t) / sizeof(uint32_t);
  
  struct ppc_thread_state32_t {
    uint32_t srr0;
    uint32_t srr1;
    uint32_t r0;
    uint32_t r1;
    uint32_t r2;
    uint32_t r3;
    uint32_t r4;
    uint32_t r5;
    uint32_t r6;
    uint32_t r7;
    uint32_t r8;
    uint32_t r9;
    uint32_t r10;
    uint32_t r11;
    uint32_t r12;
    uint32_t r13;
    uint32_t r14;
    uint32_t r15;
    uint32_t r16;
    uint32_t r17;
    uint32_t r18;
    uint32_t r19;
    uint32_t r20;
    uint32_t r21;
    uint32_t r22;
    uint32_t r23;
    uint32_t r24;
    uint32_t r25;
    uint32_t r26;
    uint32_t r27;
    uint32_t r28;
    uint32_t r29;
    uint32_t r30;
    uint32_t r31;
    uint32_t ct;
    uint32_t xer;
    uint32_t lr;
    uint32_t ctr;
    uint32_t mq;
    uint32_t vrsave;
  };
  
  inline void swapStruct(ppc_thread_state32_t &x) {
    sys::swapByteOrder(x.srr0);
    sys::swapByteOrder(x.srr1);
    sys::swapByteOrder(x.r0);
    sys::swapByteOrder(x.r1);
    sys::swapByteOrder(x.r2);
    sys::swapByteOrder(x.r3);
    sys::swapByteOrder(x.r4);
    sys::swapByteOrder(x.r5);
    sys::swapByteOrder(x.r6);
    sys::swapByteOrder(x.r7);
    sys::swapByteOrder(x.r8);
    sys::swapByteOrder(x.r9);
    sys::swapByteOrder(x.r10);
    sys::swapByteOrder(x.r11);
    sys::swapByteOrder(x.r12);
    sys::swapByteOrder(x.r13);
    sys::swapByteOrder(x.r14);
    sys::swapByteOrder(x.r15);
    sys::swapByteOrder(x.r16);
    sys::swapByteOrder(x.r17);
    sys::swapByteOrder(x.r18);
    sys::swapByteOrder(x.r19);
    sys::swapByteOrder(x.r20);
    sys::swapByteOrder(x.r21);
    sys::swapByteOrder(x.r22);
    sys::swapByteOrder(x.r23);
    sys::swapByteOrder(x.r24);
    sys::swapByteOrder(x.r25);
    sys::swapByteOrder(x.r26);
    sys::swapByteOrder(x.r27);
    sys::swapByteOrder(x.r28);
    sys::swapByteOrder(x.r29);
    sys::swapByteOrder(x.r30);
    sys::swapByteOrder(x.r31);
    sys::swapByteOrder(x.ct);
    sys::swapByteOrder(x.xer);
    sys::swapByteOrder(x.lr);
    sys::swapByteOrder(x.ctr);
    sys::swapByteOrder(x.mq);
    sys::swapByteOrder(x.vrsave);
  }
  
  struct ppc_state_hdr_t {
    uint32_t flavor;
    uint32_t count;
  };
  
  struct ppc_thread_state_t {
    ppc_state_hdr_t tsh;
    union {
      ppc_thread_state32_t ts32;
    } uts;
  };
  
  inline void swapStruct(ppc_state_hdr_t &x) {
    sys::swapByteOrder(x.flavor);
    sys::swapByteOrder(x.count);
  }
  
  enum PPCThreadFlavors {
    PPC_THREAD_STATE = 1,
    PPC_FLOAT_STATE = 2,
    PPC_EXCEPTION_STATE = 3,
    PPC_VECTOR_STATE = 4,
    PPC_THREAD_STATE64 = 5,
    PPC_EXCEPTION_STATE64 = 6,
    PPC_THREAD_STATE_NONE = 7
  };
  
  inline void swapStruct(ppc_thread_state_t &x) {
    swapStruct(x.tsh);
    if (x.tsh.flavor == PPC_THREAD_STATE)
      swapStruct(x.uts.ts32);
  }
  
  const uint32_t PPC_THREAD_STATE_COUNT =
      sizeof(ppc_thread_state32_t) / sizeof(uint32_t);
  
  // Define a union of all load command structs
  #define LOAD_COMMAND_STRUCT(LCStruct) LCStruct LCStruct##_data;
  
  union macho_load_command {
  #include "llvm/BinaryFormat/MachO.def"
  };
  
  } // end namespace MachO
  } // end namespace llvm
  
  #endif
  