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 * $FreeBSD$ 29 */ 30 31 #ifndef _MACHINE_ELF_H_ 32 #define _MACHINE_ELF_H_ 1 33 34 #if defined(__i386__) || defined(_MACHINE_ELF_WANT_32BIT) 35 /* ELF definitions for the i386 architecture. */ 36 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 37 #if defined(__ELF_WORD_SIZE) && __ELF_WORD_SIZE == 64 38 /* Definitions common to all 64 bit architectures. */ 39 #include <sys/elf64.h> 40 #endif 41 42 #ifndef __ELF_WORD_SIZE 43 #define __ELF_WORD_SIZE 32 /* Used by <sys/elf_generic.h> */ 44 #endif 45 46 #include <sys/elf_generic.h> 47 48 #define ELF_ARCH EM_386 49 50 #define ELF_MACHINE_OK(x) ((x) == EM_386 || (x) == EM_486) 51 52 /* 53 * Auxiliary vector entries for passing information to the interpreter. 54 * 55 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 56 * but POSIX lays claim to all symbols ending with "_t". 57 */ 58 59 typedef struct { /* Auxiliary vector entry on initial stack */ 60 int a_type; /* Entry type. */ 61 union { 62 long a_val; /* Integer value. */ 63 void *a_ptr; /* Address. */ 64 void (*a_fcn)(void); /* Function pointer (not used). */ 65 } a_un; 66 } Elf32_Auxinfo; 67 68 #if __ELF_WORD_SIZE == 64 69 /* Fake for amd64 loader support */ 70 typedef struct { 71 int fake; 72 } Elf64_Auxinfo; 73 #endif 74 75 __ElfType(Auxinfo); 76 77 /* 78 * Relocation types. 79 */ 80 81 #define R_386_COUNT 38 /* Count of defined relocation types. */ 82 83 /* Define "machine" characteristics */ 84 #define ELF_TARG_CLASS ELFCLASS32 85 #define ELF_TARG_DATA ELFDATA2LSB 86 #define ELF_TARG_MACH EM_386 87 #define ELF_TARG_VER 1 88 89 #define ET_DYN_LOAD_ADDR 0x00002000 90 91 #elif defined(__amd64__) 92 93 /* 94 * ELF definitions for the AMD64 architecture. 95 */ 96 97 #ifndef __ELF_WORD_SIZE 98 #define __ELF_WORD_SIZE 64 /* Used by <sys/elf_generic.h> */ 99 #endif 100 #include <sys/elf32.h> /* Definitions common to all 32 bit architectures. */ 101 #include <sys/elf64.h> /* Definitions common to all 64 bit architectures. */ 102 #include <sys/elf_generic.h> 103 104 #define ELF_ARCH EM_X86_64 105 #define ELF_ARCH32 EM_386 106 107 #define ELF_MACHINE_OK(x) ((x) == EM_X86_64) 108 109 /* 110 * Auxiliary vector entries for passing information to the interpreter. 111 * 112 * The i386 supplement to the SVR4 ABI specification names this "auxv_t", 113 * but POSIX lays claim to all symbols ending with "_t". 114 */ 115 typedef struct { /* Auxiliary vector entry on initial stack */ 116 int a_type; /* Entry type. */ 117 union { 118 int a_val; /* Integer value. */ 119 } a_un; 120 } Elf32_Auxinfo; 121 122 typedef struct { /* Auxiliary vector entry on initial stack */ 123 long a_type; /* Entry type. */ 124 union { 125 long a_val; /* Integer value. */ 126 void *a_ptr; /* Address. */ 127 void (*a_fcn)(void); /* Function pointer (not used). */ 128 } a_un; 129 } Elf64_Auxinfo; 130 131 __ElfType(Auxinfo); 132 133 /* 134 * Relocation types. 135 */ 136 137 #define R_X86_64_COUNT 24 /* Count of defined relocation types. */ 138 139 /* Define "machine" characteristics */ 140 #if __ELF_WORD_SIZE == 32 141 #define ELF_TARG_CLASS ELFCLASS32 142 #else 143 #define ELF_TARG_CLASS ELFCLASS64 144 #endif 145 #define ELF_TARG_DATA ELFDATA2LSB 146 #define ELF_TARG_MACH EM_X86_64 147 #define ELF_TARG_VER 1 148 149 #if __ELF_WORD_SIZE == 32 150 #define ET_DYN_LOAD_ADDR 0x00002000 151 #else 152 #define ET_DYN_LOAD_ADDR 0x01021000 153 #endif 154 155 #endif /* __i386__, __amd64__ */ 156 157 #endif /* !_MACHINE_ELF_H_ */ 158