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/*	$OpenBSD: exec_elf.h,v 1.41 2006/01/06 18:53:05 millert Exp $	*/
/*
 * Copyright (c) 1995, 1996 Erik Theisen.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/*
 * This is the ELF ABI header file
 * formerly known as "elf_abi.h".
 */

#ifndef _SYS_EXEC_ELF_H_
#define _SYS_EXEC_ELF_H_

#include <machine/_types.h>
#include <machine/exec.h>
#include <linux/elf.h>

/* e_ident[] Operating System/ABI */
#define ELFOSABI_SYSV		0	/* UNIX System V ABI */
#define ELFOSABI_HPUX		1	/* HP-UX operating system */
#define ELFOSABI_NETBSD		2	/* NetBSD */
#define ELFOSABI_LINUX		3	/* GNU/Linux */
#define ELFOSABI_HURD		4	/* GNU/Hurd */
#define ELFOSABI_86OPEN		5	/* 86Open common IA32 ABI */
#define ELFOSABI_SOLARIS	6	/* Solaris */
#define ELFOSABI_MONTEREY	7	/* Monterey */
#define ELFOSABI_IRIX		8	/* IRIX */
#define ELFOSABI_FREEBSD	9	/* FreeBSD */
#define ELFOSABI_TRU64		10	/* TRU64 UNIX */
#define ELFOSABI_MODESTO	11	/* Novell Modesto */
#define ELFOSABI_OPENBSD	12	/* OpenBSD */
#define ELFOSABI_ARM		97	/* ARM */
#define ELFOSABI_STANDALONE	255	/* Standalone (embedded) application */

/* e_ident */
#define IS_ELF(ehdr) ((ehdr).e_ident[EI_MAG0] == ELFMAG0 && \
                      (ehdr).e_ident[EI_MAG1] == ELFMAG1 && \
                      (ehdr).e_ident[EI_MAG2] == ELFMAG2 && \
                      (ehdr).e_ident[EI_MAG3] == ELFMAG3)

/* e_machine */
#define EM_NONE		0		/* No Machine */
#define EM_M32		1		/* AT&T WE 32100 */
#define EM_SPARC	2		/* SPARC */
#define EM_386		3		/* Intel 80386 */
#define EM_68K		4		/* Motorola 68000 */
#define EM_88K		5		/* Motorola 88000 */
#define EM_486		6		/* Intel 80486 - unused? */
#define EM_860		7		/* Intel 80860 */
#define EM_MIPS		8		/* MIPS R3000 Big-Endian only */
/* 
 * Don't know if EM_MIPS_RS4_BE,
 * EM_SPARC64, EM_PARISC,
 * or EM_PPC are ABI compliant
 */
#define EM_MIPS_RS4_BE	10		/* MIPS R4000 Big-Endian */
#define EM_SPARC64	11		/* SPARC v9 64-bit unoffical */
#define EM_PARISC	15		/* HPPA */
#define EM_SPARC32PLUS	18		/* Enhanced instruction set SPARC */
#define EM_PPC		20		/* PowerPC */
#define EM_ARM		40		/* Advanced RISC Machines ARM */
#define EM_ALPHA	41		/* DEC ALPHA */
#define EM_SPARCV9	43		/* SPARC version 9 */
#define EM_ALPHA_EXP	0x9026		/* DEC ALPHA */
#define EM_AMD64	62		/* AMD64 architecture */
#define EM_VAX		75		/* DEC VAX */
#define EM_NUM		15		/* number of machine types */


/* Section names */
#define ELF_BSS         ".bss"		/* uninitialized data */
#define ELF_DATA        ".data"		/* initialized data */
#define ELF_DEBUG       ".debug"	/* debug */
#define ELF_DYNAMIC     ".dynamic"	/* dynamic linking information */
#define ELF_DYNSTR      ".dynstr"	/* dynamic string table */
#define ELF_DYNSYM      ".dynsym"	/* dynamic symbol table */
#define ELF_FINI        ".fini"		/* termination code */
#define ELF_GOT         ".got"		/* global offset table */
#define ELF_HASH        ".hash"		/* symbol hash table */
#define ELF_INIT        ".init"		/* initialization code */
#define ELF_REL_DATA    ".rel.data"	/* relocation data */
#define ELF_REL_FINI    ".rel.fini"	/* relocation termination code */
#define ELF_REL_INIT    ".rel.init"	/* relocation initialization code */
#define ELF_REL_DYN     ".rel.dyn"	/* relocaltion dynamic link info */
#define ELF_REL_RODATA  ".rel.rodata"	/* relocation read-only data */
#define ELF_REL_TEXT    ".rel.text"	/* relocation code */
#define ELF_RODATA      ".rodata"	/* read-only data */
#define ELF_SHSTRTAB    ".shstrtab"	/* section header string table */
#define ELF_STRTAB      ".strtab"	/* string table */
#define ELF_SYMTAB      ".symtab"	/* symbol table */
#define ELF_TEXT        ".text"		/* code */

/* Symbol Binding - ELF32_ST_BIND - st_info */
#define STB_LOCAL	0		/* Local symbol */
#define STB_GLOBAL	1		/* Global symbol */
#define STB_WEAK	2		/* like global - lower precedence */
#define STB_NUM		3		/* number of symbol bindings */
#define STB_LOPROC	13		/* reserved range for processor */
#define STB_HIPROC	15		/*  specific symbol bindings */

/* Symbol type - ELF32_ST_TYPE - st_info */
#define STT_NOTYPE	0		/* not specified */
#define STT_OBJECT	1		/* data object */
#define STT_FUNC	2		/* function */
#define STT_SECTION	3		/* section */
#define STT_FILE	4		/* file */
#define STT_NUM		5		/* number of symbol types */
#define STT_LOPROC	13		/* reserved range for processor */
#define STT_HIPROC	15		/*  specific symbol types */

#define PT_GNU_RELRO    0x6474e552      /* Read-only post relocation */

#endif /* _SYS_EXEC_ELF_H_ */