1/*- 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (c) 1996-1997 John D. Polstra. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 */ 28 29#ifndef _MACHINE_ELF_H_ 30#define _MACHINE_ELF_H_ 1 31 32#if defined(__i386__) || defined(_MACHINE_ELF_WANT_32BIT) 33/* ELF definitions for the i386 architecture. */ 34#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 35#if defined(__ELF_WORD_SIZE) && __ELF_WORD_SIZE == 64 36/* Definitions common to all 64 bit architectures. */ 37#include <sys/elf64.h> 38#endif 39 40#ifndef __ELF_WORD_SIZE 41#define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */ 42#endif 43 44#include <sys/elf_generic.h> 45 46#define ELF_ARCH EM_386 47 48#define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486) 49 50/* 51 * Auxiliary vector entries for passing information to the interpreter. 52 * 53 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 54 * but POSIX lays claim to all symbols ending with "_t". 55 */ 56 57typedef struct { /* Auxiliary vector entry on initial stack */ 58 int a_type; /* Entry type. */ 59 union { 60 long a_val; /* Integer value. */ 61 void *a_ptr; /* Address. */ 62 void (*a_fcn)(void); /* Function pointer (not used). */ 63 } a_un; 64} Elf32_Auxinfo; 65 66#if __ELF_WORD_SIZE == 64 67/* Fake for amd64 loader support */ 68typedef struct { 69 int fake; 70} Elf64_Auxinfo; 71#endif 72 73__ElfType(Auxinfo); 74 75/* 76 * Relocation types. 77 */ 78 79#define R_386_COUNT 38 /* Count of defined relocation types. */ 80 81/* Define "machine" characteristics */ 82#define ELF_TARG_CLASS ELFCLASS32 83#define ELF_TARG_DATA ELFDATA2LSB 84#define ELF_TARG_MACH EM_386 85#define ELF_TARG_VER 1 86 87#define ET_DYN_LOAD_ADDR 0x00002000 88 89#elif defined(__amd64__) 90 91/* 92 * ELF definitions for the AMD64 architecture. 93 */ 94 95#ifndef __ELF_WORD_SIZE 96#define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */ 97#endif 98#include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 99#include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 100#include <sys/elf_generic.h> 101 102#define ELF_ARCH EM_X86_64 103#define ELF_ARCH32 EM_386 104 105#define ELF_MACHINE_OK(x) ((x) == EM_X86_64) 106 107/* 108 * Auxiliary vector entries for passing information to the interpreter. 109 * 110 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 111 * but POSIX lays claim to all symbols ending with "_t". 112 */ 113typedef struct { /* Auxiliary vector entry on initial stack */ 114 int a_type; /* Entry type. */ 115 union { 116 int a_val; /* Integer value. */ 117 } a_un; 118} Elf32_Auxinfo; 119 120typedef struct { /* Auxiliary vector entry on initial stack */ 121 long a_type; /* Entry type. */ 122 union { 123 long a_val; /* Integer value. */ 124 void *a_ptr; /* Address. */ 125 void (*a_fcn)(void); /* Function pointer (not used). */ 126 } a_un; 127} Elf64_Auxinfo; 128 129__ElfType(Auxinfo); 130 131/* 132 * Relocation types. 133 */ 134 135#define R_X86_64_COUNT 24 /* Count of defined relocation types. */ 136 137/* Define "machine" characteristics */ 138#if __ELF_WORD_SIZE == 32 139#define ELF_TARG_CLASS ELFCLASS32 140#else 141#define ELF_TARG_CLASS ELFCLASS64 142#endif 143#define ELF_TARG_DATA ELFDATA2LSB 144#define ELF_TARG_MACH EM_X86_64 145#define ELF_TARG_VER 1 146 147#if __ELF_WORD_SIZE == 32 148#define ET_DYN_LOAD_ADDR 0x00002000 149#else 150#define ET_DYN_LOAD_ADDR 0x01021000 151#endif 152 153#endif /* __i386__, __amd64__ */ 154 155#endif /* !_MACHINE_ELF_H_ */ 156