Files
jsix/src/boot/elf.h
Justin C. Miller 10c8f6e4b5 Clean and document header files.
- Add missing doc comments to header files
- Move allocate_kernel_args to main.cpp
- Split functions out into pointer_manipulation.h
2020-05-10 01:42:22 -07:00

84 lines
1.3 KiB
C++

/// \file elf.h
/// Definitions and related constants for ELF64 structures
#pragma once
#include <stdint.h>
namespace boot {
namespace elf {
constexpr uint8_t version = 1;
constexpr uint8_t word_size = 2;
constexpr uint8_t endianness = 1;
constexpr uint8_t os_abi = 0;
constexpr uint16_t machine = 0x3e;
const unsigned PT_LOAD = 1;
const unsigned ST_PROGBITS = 1;
const unsigned ST_NOBITS = 8;
const unsigned long SHF_ALLOC = 0x2;
struct header
{
char magic[4];
uint8_t word_size;
uint8_t endianness;
uint8_t header_version;
uint8_t os_abi;
uint64_t reserved;
uint16_t type;
uint16_t machine;
uint32_t version;
uint64_t entrypoint;
uint64_t ph_offset;
uint64_t sh_offset;
uint32_t flags;
uint16_t eh_size;
uint16_t ph_entsize;
uint16_t ph_num;
uint16_t sh_entsize;
uint16_t sh_num;
uint16_t sh_str_idx;
} __attribute__ ((packed));
struct program_header
{
uint32_t type;
uint32_t flags;
uint64_t offset;
uint64_t vaddr;
uint64_t paddr;
uint64_t file_size;
uint64_t mem_size;
uint64_t align;
} __attribute__ ((packed));
struct section_header
{
uint32_t name;
uint32_t type;
uint64_t flags;
uint64_t addr;
uint64_t offset;
uint64_t size;
uint32_t link;
uint32_t info;
uint64_t align;
uint64_t entry_size;
} __attribute__ ((packed));
} // namespace elf
} // namespace boot