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pub const Elf32 = struct {
pub const Addr = u32;
pub const Off = u32;
pub const Ehdr = extern struct {
ident: Ident,
type: ET,
machine: EM,
version: Word,
entry: Elf32.Addr,
phoff: Elf32.Off,
shoff: Elf32.Off,
flags: EhdrFlags,
ehsize: Half,
phentsize: Half,
phnum: Half,
shentsize: Half,
shnum: Half,
shstrndx: Half,
};
pub const Phdr = extern struct {
type: PT,
offset: Elf32.Off,
vaddr: Elf32.Addr,
paddr: Elf32.Addr,
filesz: Word,
memsz: Word,
flags: PF,
@"align": Word,
};
pub const Shdr = extern struct {
name: Word,
type: SHT,
flags: packed struct(Word) { shf: SHF },
addr: Elf32.Addr,
offset: Elf32.Off,
size: Word,
link: Word,
info: Word,
addralign: Word,
entsize: Word,
};
pub const Chdr = extern struct {
type: COMPRESS,
size: Word,
addralign: Word,
};
pub const Sym = extern struct {
name: Word,
value: Elf32.Addr,
size: Word,
info: Info,
other: Other,
shndx: Section,
pub const Info = packed struct(u8) {
type: STT,
bind: STB,
};
pub const Other = packed struct(u8) {
visibility: STV,
unused: u5 = 0,
};
};
pub const Rel = extern struct {
offset: Elf32.Addr,
info: Info,
addend: u0 = 0,
pub const Info = packed struct(u32) {
type: u8,
sym: u24,
};
};
pub const Rela = extern struct {
offset: Elf32.Addr,
info: Info,
addend: i32,
pub const Info = Elf32.Rel.Info;
};
comptime {
assert(@sizeOf(Elf32.Ehdr) == 52);
assert(@sizeOf(Elf32.Phdr) == 32);
assert(@sizeOf(Elf32.Shdr) == 40);
assert(@sizeOf(Elf32.Sym) == 16);
assert(@sizeOf(Elf32.Rel) == 8);
assert(@sizeOf(Elf32.Rela) == 12);
}
}
