/* SPDX-License-Identifier: BSD-2-Clause */ /* Copyright 1996-2018 The NASM Authors - All Rights Reserved */ #ifndef OUTPUT_MACHO_H #define OUTPUT_MACHO_H #include "compiler.h" /* Magics */ #define MH_MAGIC 0xfeedface #define MH_MAGIC_64 0xfeedfacf /* File types */ #define MH_OBJECT 0x1 /* CPUs */ #define CPU_ARCH_MASK 0xff000000 #define CPU_ARCH_ABI64 0x01000000 #define CPU_TYPE_X86 7 #define CPU_TYPE_I386 CPU_TYPE_X86 #define CPU_TYPE_X86_64 (CPU_TYPE_X86 | CPU_ARCH_ABI64) #define CPU_SUBTYPE_MASK 0xff000000 #define CPU_SUBTYPE_I386_ALL 3 /* Header flags */ #define MH_SUBSECTIONS_VIA_SYMBOLS 0x00002000 /* Load commands */ #define LC_SEGMENT 0x1 #define LC_SEGMENT_64 0x19 #define LC_SYMTAB 0x2 #define LC_BUILD_VERSION 0x32 /* Symbol type bits */ #define N_STAB 0xe0 #define N_PEXT 0x10 #define N_TYPE 0x0e #define N_EXT 0x01 /* To mask with N_TYPE */ #define N_UNDF 0x00 #define N_ABS 0x02 #define N_INDR 0x0a #define N_PBUD 0x0c #define N_SECT 0x0e /* Section ordinals */ #define NO_SECT 0x00 #define MAX_SECT 0xff /* Section bits */ #define SECTION_TYPE 0x000000ff #define SECTION_ATTRIBUTES 0xffffff00 #define SECTION_ATTRIBUTES_USR 0xff000000 #define SECTION_ATTRIBUTES_SYS 0x00ffff00 #define S_REGULAR 0x00 #define S_ZEROFILL 0x01 #define S_CSTRING_LITERALS 0x02 #define S_4BYTE_LITERALS 0x03 #define S_8BYTE_LITERALS 0x04 #define S_LITERAL_POINTERS 0x05 #define S_NON_LAZY_SYMBOL_POINTERS 0x06 #define S_LAZY_SYMBOL_POINTERS 0x07 #define S_SYMBOL_STUBS 0x08 #define S_MOD_INIT_FUNC_POINTERS 0x09 #define S_MOD_TERM_FUNC_POINTERS 0x0a #define S_COALESCED 0x0b #define S_GB_ZEROFILL 0x0c #define S_INTERPOSING 0x0d #define S_16BYTE_LITERALS 0x0e #define S_DTRACE_DOF 0x0f #define S_LAZY_DYLIB_SYMBOL_POINTERS 0x10 #define S_THREAD_LOCAL_REGULAR 0x11 #define S_THREAD_LOCAL_ZEROFILL 0x12 #define S_THREAD_LOCAL_VARIABLES 0x13 #define S_THREAD_LOCAL_VARIABLE_POINTERS 0x14 #define S_THREAD_LOCAL_INIT_FUNCTION_POINTERS 0x15 #define S_ATTR_PURE_INSTRUCTIONS 0x80000000 #define S_ATTR_NO_TOC 0x40000000 #define S_ATTR_STRIP_STATIC_SYMS 0x20000000 #define S_ATTR_NO_DEAD_STRIP 0x10000000 #define S_ATTR_LIVE_SUPPORT 0x08000000 #define S_ATTR_SELF_MODIFYING_CODE 0x04000000 #define S_ATTR_DEBUG 0x02000000 #define S_ATTR_SOME_INSTRUCTIONS 0x00000400 #define S_ATTR_EXT_RELOC 0x00000200 #define S_ATTR_LOC_RELOC 0x00000100 #define INDIRECT_SYMBOL_LOCAL 0x80000000 #define INDIRECT_SYMBOL_ABS 0x40000000 /* Relocation info type */ #define GENERIC_RELOC_VANILLA 0 #define GENERIC_RELOC_PAIR 1 #define GENERIC_RELOC_SECTDIFF 2 #define GENERIC_RELOC_PB_LA_PTR 3 #define GENERIC_RELOC_LOCAL_SECTDIFF 4 #define GENERIC_RELOC_TLV 5 #define X86_64_RELOC_UNSIGNED 0 #define X86_64_RELOC_SIGNED 1 #define X86_64_RELOC_BRANCH 2 #define X86_64_RELOC_GOT_LOAD 3 #define X86_64_RELOC_GOT 4 #define X86_64_RELOC_SUBTRACTOR 5 #define X86_64_RELOC_SIGNED_1 6 #define X86_64_RELOC_SIGNED_2 7 #define X86_64_RELOC_SIGNED_4 8 #define X86_64_RELOC_TLV 9 /* Relocation info */ #define R_ABS 0 #define R_SCATTERED 0x80000000 /* Known values for the platform field in LC_BUILD_VERSION */ /* VM permission constants */ #define VM_PROT_NONE 0x00 #define VM_PROT_READ 0x01 #define VM_PROT_WRITE 0x02 #define VM_PROT_EXECUTE 0x04 /* Platforms */ /* X-macro X(_platform, _id, _name) */ #define MACHO_ALL_PLATFORMS \ X(PLATFORM_UNKNOWN, 0, "unknown") \ X(PLATFORM_MACOS, 1, "macos") \ X(PLATFORM_IOS, 2, "ios") \ X(PLATFORM_TVOS, 3, "tvos") \ X(PLATFORM_WATCHOS, 4, "watchos") \ X(PLATFORM_BRIDGEOS, 5, "bridgeos") \ X(PLATFORM_MACCATALYST, 6, "macCatalyst") \ X(PLATFORM_IOSSIMULATOR, 7, "iossimulator") \ X(PLATFORM_TVOSSIMULATOR, 8, "tvossimulator") \ X(PLATFORM_WATCHOSSIMULATOR, 9, "watchossimulator") \ X(PLATFORM_DRIVERKIT, 10, "driverkit") \ X(PLATFORM_XROS, 11, "xros") \ X(PLATFORM_XROS_SIMULATOR, 12, "xrsimulator") \ /* end */ typedef struct { uint32_t magic; uint32_t cputype; uint32_t cpusubtype; uint32_t filetype; uint32_t ncmds; uint32_t sizeofcmds; uint32_t flags; } macho_header_t; typedef struct { uint32_t magic; uint32_t cputype; uint32_t cpusubtype; uint32_t filetype; uint32_t ncmds; uint32_t sizeofcmds; uint32_t flags; uint32_t reserved; } macho_header_64_t; typedef struct { uint32_t cmd; uint32_t cmdsize; } macho_load_command_t; typedef struct { 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; } macho_segment_command_t; typedef struct { 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; } macho_segment_command_64_t; typedef struct { 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; } macho_section_t; typedef struct { 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; } macho_section_64_t; typedef struct { uint32_t cmd; uint32_t cmdsize; uint32_t symoff; uint32_t nsyms; uint32_t stroff; uint32_t strsize; } macho_symtab_command_t; typedef struct { int32_t r_address; union { struct { uint32_t r_symbolnum: 24, r_pcrel: 1, r_length: 2, r_extern: 1, r_type: 4; } s; uint32_t r_raw; } u; } macho_relocation_info_t; typedef struct nlist_base { uint32_t n_strx; uint8_t n_type; uint8_t n_sect; uint16_t n_desc; } macho_nlist_base_t; typedef struct nlist { uint32_t n_strx; uint8_t n_type; uint8_t n_sect; int16_t n_desc; uint32_t n_value; } macho_nlist_t; typedef struct { uint32_t n_strx; uint8_t n_type; uint8_t n_sect; uint16_t n_desc; uint64_t n_value; } macho_nlist_64_t; /* Adapted from LLVM include/llvm/BinaryFormat/MachO.h */ typedef struct { uint32_t tool; uint32_t version; } macho_build_tool_version_t; typedef struct { uint32_t cmd; uint32_t cmdsize; uint32_t platform; uint32_t minos; /* x.y.z is 0xXXXXYYZZ */ uint32_t sdk; /* x.y.z is 0xXXXXYYZZ */ uint32_t ntools; /* ntools macho_build_tool_version_t follow this */ } macho_build_version_command_t; #endif /* OUTPUT_MACHO_H */