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#include "common.h"
#define ELFMAG "\177ELF"
enum {
ELFCLASS32 = 1,
ELFCLASS64 = 2,
ELFDATA2LSB = 1,
ELFDATA2MSB = 2,
ELFVERSION = 1,
ELFOSABI_SYSV = 0,
ELFOSABI_ARM = 97,
ELFOSABI_STANDALONE = 255,
ET_NONE = 0,
ET_REL, ET_EXEC, ET_DYN, ET_CORE,
EM_NONE = 0,
EM_386 = 3,
EM_486 = 6,
EM_MIPS = 8,
EM_MIPS_RS4_BE = 0xA,
EM_ARM = 0x28,
EM_X86_64 = 0x3E,
EM_ARM64 = 0xB7,
};
#define ELF_HDRIDENT \
union { \
uchar ident[16]; \
struct { \
uchar i_mag[4], \
i_class, \
i_data, \
i_version, \
i_osabi, \
i_abiversion, \
i_pad[7]; \
}; \
}
struct elf64hdr {
ELF_HDRIDENT;
ushort type,
machine;
uint version;
uvlong entry,
phoff,
shoff;
uint flags;
ushort ehsize,
phentsize,
phnum,
shentsize,
shnum,
shstrndx;
};
static_assert(sizeof(struct elf64hdr) == 64);
struct elf32hdr {
ELF_HDRIDENT;
ushort type,
machine;
uint version;
uint entry,
phoff,
shoff;
uint flags;
ushort ehsize,
phentsize,
phnum,
shentsize,
shnum,
shstrndx;
};
static_assert(sizeof(struct elf32hdr) == 52);
enum {
SHT_NULL = 0x0,
SHT_PROGBITS = 0x1,
SHT_SYMTAB = 0x2,
SHT_STRTAB = 0x3,
SHT_RELA = 0x4,
SHT_HASH = 0x5,
SHT_DYNAMIC = 0x6,
SHT_NOTE = 0x7,
SHT_NOBITS = 0x8,
SHT_REL = 0x9,
SHT_SHLIB = 0xA,
SHT_DYNSYM = 0xB,
SHT_INIT_ARRAY = 0xE,
SHT_FINI_ARRAY = 0xF,
SHT_PREINIT_ARRAY = 0x10,
SHT_GROUP = 0x12,
SHT_SYMTAB_SHNDX = 0x13,
};
enum {
SHF_WRITE = 0x1,
SHF_ALLOC = 0x2,
SHF_EXECINSTR = 0x4,
SHF_MERGE = 0x10,
SHF_STRINGS = 0x20,
SHF_INFO_LINK = 0x40,
SHF_LINK_ORDER = 0x80,
SHF_OS_NONCONFORMING = 0x100,
SHF_GROUP = 0x200,
SHF_TLS = 0x400,
};
struct elf64shdr {
uint name,
type;
uvlong flags,
addr,
offset,
size;
uint link,
info;
uvlong addralign,
entsize;
};
static_assert(sizeof(struct elf64shdr) == 64);
struct elf32shdr {
uint name,
type,
flags,
addr,
offset,
size,
link,
info,
addralign,
entsize;
};
static_assert(sizeof(struct elf32shdr) == 40);
enum {
STB_LOCAL,
STB_GLOBAL,
STB_WEAK
};
enum {
STT_NOTYPE,
STT_OBJECT,
STT_FUNC,
STT_SECTION,
STT_FILE,
};
enum {
SHN_UND = 0,
SHN_ABS = 0xFFF1,
};
#define ELF_S_INFO(b,t) ((b) << 4 | (t))
struct elf64sym {
uint name;
uchar info,
other;
ushort shndx;
uvlong value,
size;
};
static_assert(sizeof(struct elf64sym) == 24);
struct elf32sym {
uint name,
value,
size;
uchar info,
other;
ushort shndx;
};
static_assert(sizeof(struct elf32sym) == 16);
#define ELF64_R_INFO(s,t) ((uvlong) (s) << 32 | (uint)(t))
struct elf64rel {
uvlong offset, info;
};
static_assert(sizeof(struct elf64rel) == 16);
#define ELF32_R_INFO(s,t) ((s) << 8 | (uchar)(t))
struct elf32rel {
uint offset, info;
};
static_assert(sizeof(struct elf32rel) == 8);
struct elf64rela {
uvlong offset, info;
vlong addend;
};
static_assert(sizeof(struct elf64rela) == 24);
struct elf32rela {
uint offset, info;
int addend;
};
static_assert(sizeof(struct elf32rela) == 12);
/* vim:set ts=3 sw=3 expandtab: */
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