elf.h revision 186212
1186681Sed/*- 2186681Sed * Copyright (c) 1996-1997 John D. Polstra. 3186681Sed * All rights reserved. 4186681Sed * 5186681Sed * Redistribution and use in source and binary forms, with or without 6186681Sed * modification, are permitted provided that the following conditions 7186681Sed * are met: 8186681Sed * 1. Redistributions of source code must retain the above copyright 9186681Sed * notice, this list of conditions and the following disclaimer. 10186681Sed * 2. Redistributions in binary form must reproduce the above copyright 11186681Sed * notice, this list of conditions and the following disclaimer in the 12186681Sed * documentation and/or other materials provided with the distribution. 13186681Sed * 14186681Sed * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15186681Sed * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16186681Sed * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17186681Sed * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18186681Sed * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19186681Sed * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20186681Sed * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21186681Sed * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22186681Sed * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23186681Sed * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24186681Sed * SUCH DAMAGE. 25186681Sed * 26186681Sed * $FreeBSD: head/sys/i386/include/elf.h 186212 2008-12-17 06:56:58Z imp $ 27186681Sed */ 28186681Sed 29186681Sed#ifndef _MACHINE_ELF_H_ 30186681Sed#define _MACHINE_ELF_H_ 1 31186681Sed 32186681Sed/* 33186681Sed * ELF definitions for the i386 architecture. 34186681Sed */ 35186681Sed 36186681Sed#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 37186681Sed#if defined(__ELF_WORD_SIZE) && __ELF_WORD_SIZE == 64 38206141Sed#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 39186681Sed#endif 40186681Sed 41186681Sed#ifndef __ELF_WORD_SIZE 42186681Sed#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */ 43186681Sed#endif 44221698Sed 45221698Sed#include <sys/elf_generic.h> 46221698Sed 47186681Sed#define ELF_ARCH EM_386 48199171Sed 49199171Sed#define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486) 50199171Sed 51199171Sed/* 52199171Sed * Auxiliary vector entries for passing information to the interpreter. 53199171Sed * 54199171Sed * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 55199171Sed * but POSIX lays claim to all symbols ending with "_t". 56199171Sed */ 57186681Sed 58186681Sedtypedef struct { /* Auxiliary vector entry on initial stack */ 59186681Sed int a_type; /* Entry type. */ 60186681Sed union { 61197470Sed long a_val; /* Integer value. */ 62197470Sed void *a_ptr; /* Address. */ 63197470Sed void (*a_fcn)(void); /* Function pointer (not used). */ 64197470Sed } a_un; 65186681Sed} Elf32_Auxinfo; 66186681Sed 67186681Sed#if __ELF_WORD_SIZE == 64 68186681Sed/* Fake for amd64 loader support */ 69186681Sedtypedef struct { 70186681Sed int fake; 71186681Sed} Elf64_Auxinfo; 72186681Sed#endif 73186681Sed 74186681Sed__ElfType(Auxinfo); 75186681Sed 76186681Sed/* Values for a_type. */ 77186681Sed#define AT_NULL 0 /* Terminates the vector. */ 78186681Sed#define AT_IGNORE 1 /* Ignored entry. */ 79186681Sed#define AT_EXECFD 2 /* File descriptor of program to load. */ 80186681Sed#define AT_PHDR 3 /* Program header of program already loaded. */ 81186681Sed#define AT_PHENT 4 /* Size of each program header entry. */ 82186681Sed#define AT_PHNUM 5 /* Number of program header entries. */ 83186681Sed#define AT_PAGESZ 6 /* Page size in bytes. */ 84186681Sed#define AT_BASE 7 /* Interpreter's base address. */ 85186681Sed#define AT_FLAGS 8 /* Flags (unused for i386). */ 86186681Sed#define AT_ENTRY 9 /* Where interpreter should transfer control. */ 87186681Sed/* 88186681Sed * The following non-standard values are used in Linux ELF binaries. 89186681Sed */ 90186681Sed#define AT_NOTELF 10 /* Program is not ELF ?? */ 91186681Sed#define AT_UID 11 /* Real uid. */ 92186681Sed#define AT_EUID 12 /* Effective uid. */ 93186681Sed#define AT_GID 13 /* Real gid. */ 94186681Sed#define AT_EGID 14 /* Effective gid. */ 95186681Sed 96186681Sed#define AT_COUNT 15 /* Count of defined aux entry types. */ 97186681Sed 98186681Sed/* 99186681Sed * Relocation types. 100186681Sed */ 101186681Sed 102186681Sed#define R_386_COUNT 38 /* Count of defined relocation types. */ 103186681Sed 104186681Sed/* Define "machine" characteristics */ 105186681Sed#define ELF_TARG_CLASS ELFCLASS32 106186681Sed#define ELF_TARG_DATA ELFDATA2LSB 107186681Sed#define ELF_TARG_MACH EM_386 108186681Sed#define ELF_TARG_VER 1 109186681Sed 110186681Sed#endif /* !_MACHINE_ELF_H_ */ 111186681Sed