/* ----------------------------------------------------------------------- *
*
* Copyright 1996-2018 The NASM Authors - All Rights Reserved
* See the file AUTHORS included with the NASM distribution for
* the specific copyright holders.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following
* conditions are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* ----------------------------------------------------------------------- */
#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
/* 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
/* VM permission constants */
#define VM_PROT_NONE 0x00
#define VM_PROT_READ 0x01
#define VM_PROT_WRITE 0x02
#define VM_PROT_EXECUTE 0x04
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;
#endif /* OUTPUT_MACHO_H */