mirror of
https://github.com/netwide-assembler/nasm.git
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283 lines
6.9 KiB
C
283 lines
6.9 KiB
C
/* ----------------------------------------------------------------------- *
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*
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* Copyright 1996-2018 The NASM Authors - All Rights Reserved
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* See the file AUTHORS included with the NASM distribution for
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* the specific copyright holders.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following
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* conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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* CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* ----------------------------------------------------------------------- */
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#ifndef OUTPUT_MACHO_H
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#define OUTPUT_MACHO_H
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#include "compiler.h"
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/* Magics */
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#define MH_MAGIC 0xfeedface
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#define MH_MAGIC_64 0xfeedfacf
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/* File types */
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#define MH_OBJECT 0x1
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/* CPUs */
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#define CPU_ARCH_MASK 0xff000000
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#define CPU_ARCH_ABI64 0x01000000
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#define CPU_TYPE_X86 7
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#define CPU_TYPE_I386 CPU_TYPE_X86
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#define CPU_TYPE_X86_64 (CPU_TYPE_X86 | CPU_ARCH_ABI64)
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#define CPU_SUBTYPE_MASK 0xff000000
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#define CPU_SUBTYPE_I386_ALL 3
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/* Header flags */
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#define MH_SUBSECTIONS_VIA_SYMBOLS 0x00002000
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/* Load commands */
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#define LC_SEGMENT 0x1
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#define LC_SEGMENT_64 0x19
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#define LC_SYMTAB 0x2
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/* Symbol type bits */
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#define N_STAB 0xe0
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#define N_PEXT 0x10
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#define N_TYPE 0x0e
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#define N_EXT 0x01
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/* To mask with N_TYPE */
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#define N_UNDF 0x00
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#define N_ABS 0x02
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#define N_INDR 0x0a
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#define N_PBUD 0x0c
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#define N_SECT 0x0e
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/* Section ordinals */
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#define NO_SECT 0x00
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#define MAX_SECT 0xff
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/* Section bits */
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#define SECTION_TYPE 0x000000ff
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#define SECTION_ATTRIBUTES 0xffffff00
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#define SECTION_ATTRIBUTES_USR 0xff000000
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#define SECTION_ATTRIBUTES_SYS 0x00ffff00
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#define S_REGULAR 0x00
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#define S_ZEROFILL 0x01
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#define S_CSTRING_LITERALS 0x02
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#define S_4BYTE_LITERALS 0x03
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#define S_8BYTE_LITERALS 0x04
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#define S_LITERAL_POINTERS 0x05
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#define S_NON_LAZY_SYMBOL_POINTERS 0x06
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#define S_LAZY_SYMBOL_POINTERS 0x07
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#define S_SYMBOL_STUBS 0x08
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#define S_MOD_INIT_FUNC_POINTERS 0x09
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#define S_MOD_TERM_FUNC_POINTERS 0x0a
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#define S_COALESCED 0x0b
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#define S_GB_ZEROFILL 0x0c
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#define S_INTERPOSING 0x0d
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#define S_16BYTE_LITERALS 0x0e
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#define S_DTRACE_DOF 0x0f
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#define S_LAZY_DYLIB_SYMBOL_POINTERS 0x10
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#define S_THREAD_LOCAL_REGULAR 0x11
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#define S_THREAD_LOCAL_ZEROFILL 0x12
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#define S_THREAD_LOCAL_VARIABLES 0x13
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#define S_THREAD_LOCAL_VARIABLE_POINTERS 0x14
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#define S_THREAD_LOCAL_INIT_FUNCTION_POINTERS 0x15
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#define S_ATTR_PURE_INSTRUCTIONS 0x80000000
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#define S_ATTR_NO_TOC 0x40000000
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#define S_ATTR_STRIP_STATIC_SYMS 0x20000000
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#define S_ATTR_NO_DEAD_STRIP 0x10000000
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#define S_ATTR_LIVE_SUPPORT 0x08000000
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#define S_ATTR_SELF_MODIFYING_CODE 0x04000000
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#define S_ATTR_DEBUG 0x02000000
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#define S_ATTR_SOME_INSTRUCTIONS 0x00000400
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#define S_ATTR_EXT_RELOC 0x00000200
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#define S_ATTR_LOC_RELOC 0x00000100
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#define INDIRECT_SYMBOL_LOCAL 0x80000000
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#define INDIRECT_SYMBOL_ABS 0x40000000
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/* Relocation info type */
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#define GENERIC_RELOC_VANILLA 0
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#define GENERIC_RELOC_PAIR 1
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#define GENERIC_RELOC_SECTDIFF 2
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#define GENERIC_RELOC_PB_LA_PTR 3
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#define GENERIC_RELOC_LOCAL_SECTDIFF 4
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#define GENERIC_RELOC_TLV 5
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#define X86_64_RELOC_UNSIGNED 0
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#define X86_64_RELOC_SIGNED 1
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#define X86_64_RELOC_BRANCH 2
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#define X86_64_RELOC_GOT_LOAD 3
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#define X86_64_RELOC_GOT 4
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#define X86_64_RELOC_SUBTRACTOR 5
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#define X86_64_RELOC_SIGNED_1 6
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#define X86_64_RELOC_SIGNED_2 7
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#define X86_64_RELOC_SIGNED_4 8
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#define X86_64_RELOC_TLV 9
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/* Relocation info */
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#define R_ABS 0
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#define R_SCATTERED 0x80000000
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/* VM permission constants */
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#define VM_PROT_NONE 0x00
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#define VM_PROT_READ 0x01
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#define VM_PROT_WRITE 0x02
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#define VM_PROT_EXECUTE 0x04
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typedef struct {
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uint32_t magic;
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uint32_t cputype;
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uint32_t cpusubtype;
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uint32_t filetype;
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uint32_t ncmds;
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uint32_t sizeofcmds;
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uint32_t flags;
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} macho_header_t;
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typedef struct {
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uint32_t magic;
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uint32_t cputype;
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uint32_t cpusubtype;
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uint32_t filetype;
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uint32_t ncmds;
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uint32_t sizeofcmds;
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uint32_t flags;
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uint32_t reserved;
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} macho_header_64_t;
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typedef struct {
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uint32_t cmd;
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uint32_t cmdsize;
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} macho_load_command_t;
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typedef struct {
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uint32_t cmd;
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uint32_t cmdsize;
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char segname[16];
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uint32_t vmaddr;
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uint32_t vmsize;
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uint32_t fileoff;
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uint32_t filesize;
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uint32_t maxprot;
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uint32_t initprot;
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uint32_t nsects;
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uint32_t flags;
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} macho_segment_command_t;
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typedef struct {
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uint32_t cmd;
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uint32_t cmdsize;
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char segname[16];
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uint64_t vmaddr;
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uint64_t vmsize;
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uint64_t fileoff;
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uint64_t filesize;
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uint32_t maxprot;
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uint32_t initprot;
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uint32_t nsects;
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uint32_t flags;
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} macho_segment_command_64_t;
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typedef struct {
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char sectname[16];
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char segname[16];
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uint32_t addr;
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uint32_t size;
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uint32_t offset;
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uint32_t align;
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uint32_t reloff;
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uint32_t nreloc;
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uint32_t flags;
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uint32_t reserved1;
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uint32_t reserved2;
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} macho_section_t;
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typedef struct {
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char sectname[16];
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char segname[16];
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uint64_t addr;
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uint64_t size;
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uint32_t offset;
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uint32_t align;
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uint32_t reloff;
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uint32_t nreloc;
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uint32_t flags;
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uint32_t reserved1;
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uint32_t reserved2;
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uint32_t reserved3;
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} macho_section_64_t;
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typedef struct {
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uint32_t cmd;
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uint32_t cmdsize;
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uint32_t symoff;
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uint32_t nsyms;
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uint32_t stroff;
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uint32_t strsize;
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} macho_symtab_command_t;
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typedef struct {
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int32_t r_address;
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union {
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struct {
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uint32_t r_symbolnum: 24,
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r_pcrel: 1,
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r_length: 2,
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r_extern: 1,
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r_type: 4;
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} s;
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uint32_t r_raw;
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} u;
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} macho_relocation_info_t;
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typedef struct nlist_base {
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uint32_t n_strx;
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uint8_t n_type;
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uint8_t n_sect;
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uint16_t n_desc;
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} macho_nlist_base_t;
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typedef struct nlist {
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uint32_t n_strx;
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uint8_t n_type;
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uint8_t n_sect;
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int16_t n_desc;
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uint32_t n_value;
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} macho_nlist_t;
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typedef struct {
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uint32_t n_strx;
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uint8_t n_type;
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uint8_t n_sect;
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uint16_t n_desc;
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uint64_t n_value;
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} macho_nlist_64_t;
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#endif /* OUTPUT_MACHO_H */
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