/*
 * This file is part of the UCB release of Plan 9. It is subject to the license
 * terms in the LICENSE file found in the top-level directory of this
 * distribution and at http://akaros.cs.berkeley.edu/files/Plan9License. No
 * part of the UCB release of Plan 9, including this file, may be copied,
 * modified, propagated, or distributed except according to the terms contained
 * in the LICENSE file.
 */

enum {
	Ehdr32sz	= 52,
	Phdr32sz	= 32,
	Shdr32sz	= 40,

	Ehdr64sz	= 64,
	Phdr64sz	= 56,
	Shdr64sz	= 64,
};

/* from /sys/src/libmach/elf.h */
enum {
	/* Ehdr codes */
	MAG0 = 0,		/* ident[] indexes */
	MAG1 = 1,
	MAG2 = 2,
	MAG3 = 3,
	CLASS = 4,
	DATA = 5,
	VERSION = 6,

	ELFCLASSNONE = 0,	/* ident[CLASS] */
	ELFCLASS32 = 1,
	ELFCLASS64 = 2,
	ELFCLASSNUM = 3,

	ELFDATANONE = 0,	/* ident[DATA] */
	ELFDATA2LSB = 1,
	ELFDATA2MSB = 2,
	ELFDATANUM = 3,

	NOETYPE = 0,		/* type */
	REL = 1,
	EXEC = 2,
	DYN = 3,
	CORE = 4,

	NONE = 0,		/* machine */
	M32 = 1,		/* AT&T WE 32100 */
	SPARC = 2,		/* Sun SPARC */
	I386 = 3,		/* Intel 80386 */
	M68K = 4,		/* Motorola 68000 */
	M88K = 5,		/* Motorola 88000 */
	I486 = 6,		/* Intel 80486 */
	I860 = 7,		/* Intel i860 */
	MIPS = 8,		/* Mips R2000 */
	S370 = 9,		/* Amdhal	*/
	MIPSR4K = 10,		/* Mips R4000 */
	SPARC64 = 18,		/* Sun SPARC v9 */
	POWER = 20,		/* PowerPC */
	POWER64 = 21,		/* PowerPC64 */
	ARM = 40,		/* ARM */
	AMD64 = 62,		/* Amd64 */
	ARM64 = 183,		/* ARM64 */

	NO_VERSION = 0,		/* version, ident[VERSION] */
	CURRENT = 1,

	/* Phdr Codes */
	NOPTYPE = 0,		/* type */
	PT_LOAD = 1,
	DYNAMIC = 2,
	INTERP = 3,
	NOTE = 4,
	SHLIB = 5,
	PHDR = 6,

	R = 0x4,		/* flags */
	W = 0x2,
	X = 0x1,

	/* Shdr Codes */
	Progbits = 1,	/* section types */
	Strtab = 3,
	Nobits = 8,

	Swrite = 1,	/* section attributes (flags) */
	Salloc = 2,
	Sexec = 4,
};

typedef void (*Putl)(long);

void	elf32(int mach, int bo, int addpsects, void (*putpsects)(Putl));
void	elf32phdr(void (*putl)(long), uint32_t type, uint32_t off,
		      uint32_t vaddr,
	uint32_t paddr, uint32_t filesz, uint32_t memsz, uint32_t prots,
		      uint32_t align);
void	elf32shdr(void (*putl)(long), uint32_t name, uint32_t type,
		      uint32_t flags,
	uint32_t vaddr, uint32_t off, uint32_t sectsz, uint32_t link,
		      uint32_t addnl,
	uint32_t align, uint32_t entsz);

void	elf64(int mach, int bo, int addpsects, void (*putpsects)(Putl));
void	elf64phdr(void (*putl)(long), void (*putll)(vlong), uint32_t type,
	uvlong off, uvlong vaddr, uvlong paddr, uvlong filesz, uvlong memsz,
	uint32_t prots, uvlong align);
void	elf64shdr(void (*putl)(long), void (*putll)(vlong), uint32_t name,
	uint32_t type, uvlong flags, uvlong vaddr, uvlong off,
		      uvlong sectsz,
	uint32_t link, uint32_t addnl, uvlong align, uvlong entsz);