1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 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 * $FreeBSD$ 29 */ 30 31 #ifndef _MACHINE_ELF_H_ 32 #define _MACHINE_ELF_H_ 1 33 34 #if defined(__i386__) || defined(_MACHINE_ELF_WANT_32BIT) 35 36 /* 37 * ELF definitions for the i386 architecture. 38 */ 39 40 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 41 #if defined(__ELF_WORD_SIZE) && __ELF_WORD_SIZE == 64 42 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 43 #endif 44 45 #ifndef __ELF_WORD_SIZE 46 #define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */ 47 #endif 48 49 #include <sys/elf_generic.h> 50 51 #define ELF_ARCH EM_386 52 53 #define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486) 54 55 /* 56 * Auxiliary vector entries for passing information to the interpreter. 57 * 58 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 59 * but POSIX lays claim to all symbols ending with "_t". 60 */ 61 62 typedef struct { /* Auxiliary vector entry on initial stack */ 63 int a_type; /* Entry type. */ 64 union { 65 long a_val; /* Integer value. */ 66 void *a_ptr; /* Address. */ 67 void (*a_fcn)(void); /* Function pointer (not used). */ 68 } a_un; 69 } Elf32_Auxinfo; 70 71 #if __ELF_WORD_SIZE == 64 72 /* Fake for amd64 loader support */ 73 typedef struct { 74 int fake; 75 } Elf64_Auxinfo; 76 #endif 77 78 __ElfType(Auxinfo); 79 80 /* 81 * Relocation types. 82 */ 83 84 #define R_386_COUNT 38 /* Count of defined relocation types. */ 85 86 /* Define "machine" characteristics */ 87 #define ELF_TARG_CLASS ELFCLASS32 88 #define ELF_TARG_DATA ELFDATA2LSB 89 #define ELF_TARG_MACH EM_386 90 #define ELF_TARG_VER 1 91 92 #define ET_DYN_LOAD_ADDR 0x01001000 93 94 #elif defined(__amd64__) 95 96 /* 97 * ELF definitions for the AMD64 architecture. 98 */ 99 100 #ifndef __ELF_WORD_SIZE 101 #define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */ 102 #endif 103 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 104 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 105 #include <sys/elf_generic.h> 106 107 #define ELF_ARCH EM_X86_64 108 #define ELF_ARCH32 EM_386 109 110 #define ELF_MACHINE_OK(x) ((x) == EM_X86_64) 111 112 /* 113 * Auxiliary vector entries for passing information to the interpreter. 114 * 115 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 116 * but POSIX lays claim to all symbols ending with "_t". 117 */ 118 typedef struct { /* Auxiliary vector entry on initial stack */ 119 int a_type; /* Entry type. */ 120 union { 121 int a_val; /* Integer value. */ 122 } a_un; 123 } Elf32_Auxinfo; 124 125 typedef struct { /* Auxiliary vector entry on initial stack */ 126 long a_type; /* Entry type. */ 127 union { 128 long a_val; /* Integer value. */ 129 void *a_ptr; /* Address. */ 130 void (*a_fcn)(void); /* Function pointer (not used). */ 131 } a_un; 132 } Elf64_Auxinfo; 133 134 __ElfType(Auxinfo); 135 136 /* 137 * Relocation types. 138 */ 139 140 #define R_X86_64_COUNT 24 /* Count of defined relocation types. */ 141 142 /* Define "machine" characteristics */ 143 #if __ELF_WORD_SIZE == 32 144 #define ELF_TARG_CLASS ELFCLASS32 145 #else 146 #define ELF_TARG_CLASS ELFCLASS64 147 #endif 148 #define ELF_TARG_DATA ELFDATA2LSB 149 #define ELF_TARG_MACH EM_X86_64 150 #define ELF_TARG_VER 1 151 152 #if __ELF_WORD_SIZE == 32 153 #define ET_DYN_LOAD_ADDR 0x01001000 154 #else 155 #define ET_DYN_LOAD_ADDR 0x01021000 156 #endif 157 158 #endif /* __i386__, __amd64__ */ 159 160 #endif /* !_MACHINE_ELF_H_ */ 161