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llvm-mirror/include/llvm/Support/MachO.h
Kevin Enderby f831fe0c12 Add "-format darwin" to llvm-nm to be like darwin's nm(1) -m output. 
This is a first step in seeing if it is possible to make llvm-nm produce
the same output as darwin's nm(1).  Darwin's default format is bsd but its
-m output prints the longer Mach-O specific details.  For now I added the
"-format darwin" to do this (whos name may need to change in the future).
As there are other Mach-O specific flags to nm(1) which I'm hoping to add some
how in the future.  But I wanted to see if I could get the correct output for
-m flag using llvm-nm and the libObject interfaces.

I got this working but would love to hear what others think about this approach
to getting object/format specific details printed with llvm-nm.

llvm-svn: 210285
2014-06-05 21:21:57 +00:00

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//===-- llvm/Support/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_SUPPORT_MACHO_H
#define LLVM_SUPPORT_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
};
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
};
enum : uint32_t {
// Flags for the "cmd" field in llvm::MachO::load_command
LC_REQ_DYLD = 0x80000000u
};
enum LoadCommandType : uint32_t {
// Constants for the "cmd" field in llvm::MachO::load_command
LC_SEGMENT = 0x00000001u,
LC_SYMTAB = 0x00000002u,
LC_SYMSEG = 0x00000003u,
LC_THREAD = 0x00000004u,
LC_UNIXTHREAD = 0x00000005u,
LC_LOADFVMLIB = 0x00000006u,
LC_IDFVMLIB = 0x00000007u,
LC_IDENT = 0x00000008u,
LC_FVMFILE = 0x00000009u,
LC_PREPAGE = 0x0000000Au,
LC_DYSYMTAB = 0x0000000Bu,
LC_LOAD_DYLIB = 0x0000000Cu,
LC_ID_DYLIB = 0x0000000Du,
LC_LOAD_DYLINKER = 0x0000000Eu,
LC_ID_DYLINKER = 0x0000000Fu,
LC_PREBOUND_DYLIB = 0x00000010u,
LC_ROUTINES = 0x00000011u,
LC_SUB_FRAMEWORK = 0x00000012u,
LC_SUB_UMBRELLA = 0x00000013u,
LC_SUB_CLIENT = 0x00000014u,
LC_SUB_LIBRARY = 0x00000015u,
LC_TWOLEVEL_HINTS = 0x00000016u,
LC_PREBIND_CKSUM = 0x00000017u,
LC_LOAD_WEAK_DYLIB = 0x80000018u,
LC_SEGMENT_64 = 0x00000019u,
LC_ROUTINES_64 = 0x0000001Au,
LC_UUID = 0x0000001Bu,
LC_RPATH = 0x8000001Cu,
LC_CODE_SIGNATURE = 0x0000001Du,
LC_SEGMENT_SPLIT_INFO = 0x0000001Eu,
LC_REEXPORT_DYLIB = 0x8000001Fu,
LC_LAZY_LOAD_DYLIB = 0x00000020u,
LC_ENCRYPTION_INFO = 0x00000021u,
LC_DYLD_INFO = 0x00000022u,
LC_DYLD_INFO_ONLY = 0x80000022u,
LC_LOAD_UPWARD_DYLIB = 0x80000023u,
LC_VERSION_MIN_MACOSX = 0x00000024u,
LC_VERSION_MIN_IPHONEOS = 0x00000025u,
LC_FUNCTION_STARTS = 0x00000026u,
LC_DYLD_ENVIRONMENT = 0x00000027u,
LC_MAIN = 0x80000028u,
LC_DATA_IN_CODE = 0x00000029u,
LC_SOURCE_VERSION = 0x0000002Au,
LC_DYLIB_CODE_SIGN_DRS = 0x0000002Bu,
// 0x0000002Cu,
LC_LINKER_OPTIONS = 0x0000002Du,
LC_LINKER_OPTIMIZATION_HINT = 0x0000002Eu
};
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
};
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 {
// 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 & NlistMaskStab) != 0"
N_GSYM = 0x20u,
N_FNAME = 0x22u,
N_FUN = 0x24u,
N_STSYM = 0x26u,
N_LCSYM = 0x28u,
N_BNSYM = 0x2Eu,
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
};
// 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;
};
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;
};
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;
};
struct twolevel_hints_command {
uint32_t cmd;
uint32_t cmdsize;
uint32_t offset;
uint32_t nhints;
};
struct twolevel_hint {
uint32_t isub_image:8,
itoc:24;
};
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 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 reserved;
};
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_options_command {
uint32_t cmd;
uint32_t cmdsize;
uint32_t count;
};
struct symseg_command {
uint32_t cmd;
uint32_t cmdsize;
uint32_t offset;
uint32_t size;
};
struct ident_command {
uint32_t cmd;
uint32_t cmdsize;
};
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;
};
// 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 {
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;
};
// Get/Set functions from <mach-o/nlist.h>
static inline uint16_t GET_LIBRARY_ORDINAL(uint16_t n_desc) {
return (((n_desc) >> 8u) & 0xffu);
}
static inline void SET_LIBRARY_ORDINAL(uint16_t &n_desc, uint8_t ordinal) {
n_desc = (((n_desc) & 0x00ff) | (((ordinal) & 0xff) << 8));
}
static inline uint8_t GET_COMM_ALIGN (uint16_t n_desc) {
return (n_desc >> 8u) & 0x0fu;
}
static 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_SUB_TYPE_MASK = 0xff000000, // Mask for architecture bits
CPU_SUB_TYPE_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
};
static inline int CPU_SUBTYPE_INTEL(int Family, int Model) {
return Family | (Model << 4);
}
static inline int CPU_SUBTYPE_INTEL_FAMILY(CPUSubTypeX86 ST) {
return ((int)ST) & 0x0f;
}
static 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
};
} // end namespace MachO
} // end namespace llvm
#endif
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