#define ELF_MAGIC 0x464C457FU	/* "\x7FELF" in little endian */

struct elfhdr {
	uint32_t magic;	// must equal ELF_MAGIC
	uint8_t elf[12];
	uint16_t type;
	uint16_t machine;
	uint32_t version;
	uint32_t entry;
	uint32_t phoff;
	uint32_t shoff;
	uint32_t flags;
	uint16_t ehsize;
	uint16_t phentsize;
	uint16_t phnum;
	uint16_t shentsize;
	uint16_t shnum;
	uint16_t shstrndx;
};

struct proghdr {
	uint32_t type;
	uint32_t offset;
	uint32_t va;
	uint32_t pa;
	uint32_t filesz;
	uint32_t memsz;
	uint32_t flags;
	uint32_t align;
};

// Values for Proghdr type
#define ELF_PROG_LOAD		1

// Flag bits for Proghdr flags
#define ELF_PROG_FLAG_EXEC	1
#define ELF_PROG_FLAG_WRITE	2
#define ELF_PROG_FLAG_READ	4