1 /*- 2 * Copyright (c) 2008-2011 Joseph Koshy 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $Id: _libelf_config.h 3764 2019-06-28 21:44:46Z emaste $ 27 */ 28 29 #if defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__) 30 31 /* 32 * Define LIBELF_{ARCH,BYTEORDER,CLASS} based on the machine architecture. 33 * See also: <machine/elf.h> on FreeBSD. 34 */ 35 36 #if defined(__amd64__) 37 38 #define LIBELF_ARCH EM_X86_64 39 #define LIBELF_BYTEORDER ELFDATA2LSB 40 #define LIBELF_CLASS ELFCLASS64 41 42 #elif defined(__aarch64__) 43 44 #define LIBELF_ARCH EM_AARCH64 45 #define LIBELF_BYTEORDER ELFDATA2LSB 46 #define LIBELF_CLASS ELFCLASS64 47 48 #elif defined(__arm__) 49 50 #define LIBELF_ARCH EM_ARM 51 #if defined(__ARMEB__) /* Big-endian ARM. */ 52 #define LIBELF_BYTEORDER ELFDATA2MSB 53 #else 54 #define LIBELF_BYTEORDER ELFDATA2LSB 55 #endif 56 #define LIBELF_CLASS ELFCLASS32 57 58 #elif defined(__i386__) 59 60 #define LIBELF_ARCH EM_386 61 #define LIBELF_BYTEORDER ELFDATA2LSB 62 #define LIBELF_CLASS ELFCLASS32 63 64 #elif defined(__ia64__) 65 66 #define LIBELF_ARCH EM_IA_64 67 #define LIBELF_BYTEORDER ELFDATA2LSB 68 #define LIBELF_CLASS ELFCLASS64 69 70 #elif defined(__mips__) 71 72 #define LIBELF_ARCH EM_MIPS 73 #if defined(__MIPSEB__) 74 #define LIBELF_BYTEORDER ELFDATA2MSB 75 #else 76 #define LIBELF_BYTEORDER ELFDATA2LSB 77 #endif 78 #define LIBELF_CLASS ELFCLASS32 79 80 #elif defined(__powerpc64__) 81 82 #define LIBELF_ARCH EM_PPC64 83 #if __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__ 84 #define LIBELF_BYTEORDER ELFDATA2LSB 85 #else 86 #define LIBELF_BYTEORDER ELFDATA2MSB 87 #endif 88 #define LIBELF_CLASS ELFCLASS64 89 90 #elif defined(__powerpc__) 91 92 #define LIBELF_ARCH EM_PPC 93 #define LIBELF_BYTEORDER ELFDATA2MSB 94 #define LIBELF_CLASS ELFCLASS32 95 96 #elif defined(__riscv) && (__riscv_xlen == 64) 97 98 #define LIBELF_ARCH EM_RISCV 99 #define LIBELF_BYTEORDER ELFDATA2LSB 100 #define LIBELF_CLASS ELFCLASS64 101 102 #elif defined(__riscv64) 103 104 #define LIBELF_ARCH EM_RISCV 105 #define LIBELF_BYTEORDER ELFDATA2LSB 106 #define LIBELF_CLASS ELFCLASS64 107 108 #elif defined(__sparc__) 109 110 #define LIBELF_ARCH EM_SPARCV9 111 #define LIBELF_BYTEORDER ELFDATA2MSB 112 #define LIBELF_CLASS ELFCLASS64 113 114 #else 115 #error Unknown architecture. 116 #endif 117 #endif /* defined(__APPLE__) || defined(__DragonFly__) || defined(__FreeBSD__) */ 118 119 /* 120 * Definitions for Minix3. 121 */ 122 #ifdef __minix 123 124 #define LIBELF_ARCH EM_386 125 #define LIBELF_BYTEORDER ELFDATA2LSB 126 #define LIBELF_CLASS ELFCLASS32 127 128 #endif /* __minix */ 129 130 #ifdef __NetBSD__ 131 132 #include <machine/elf_machdep.h> 133 134 #if !defined(ARCH_ELFSIZE) 135 #error ARCH_ELFSIZE is not defined. 136 #endif 137 138 #if ARCH_ELFSIZE == 32 139 #define LIBELF_ARCH ELF32_MACHDEP_ID 140 #define LIBELF_BYTEORDER ELF32_MACHDEP_ENDIANNESS 141 #define LIBELF_CLASS ELFCLASS32 142 #define Elf_Note Elf32_Nhdr 143 #else 144 #define LIBELF_ARCH ELF64_MACHDEP_ID 145 #define LIBELF_BYTEORDER ELF64_MACHDEP_ENDIANNESS 146 #define LIBELF_CLASS ELFCLASS64 147 #define Elf_Note Elf64_Nhdr 148 #endif 149 150 #endif /* __NetBSD__ */ 151 152 #if defined(__OpenBSD__) 153 154 #include <machine/exec.h> 155 156 #define LIBELF_ARCH ELF_TARG_MACH 157 #define LIBELF_BYTEORDER ELF_TARG_DATA 158 #define LIBELF_CLASS ELF_TARG_CLASS 159 160 #endif 161 162 /* 163 * GNU & Linux compatibility. 164 * 165 * `__linux__' is defined in an environment runs the Linux kernel and glibc. 166 * `__GNU__' is defined in an environment runs a GNU kernel (Hurd) and glibc. 167 * `__GLIBC__' is defined for an environment that runs glibc over a non-GNU 168 * kernel such as GNU/kFreeBSD. 169 */ 170 171 #if defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) 172 173 #if defined(__linux__) 174 175 #include "native-elf-format.h" 176 177 #define LIBELF_CLASS ELFTC_CLASS 178 #define LIBELF_ARCH ELFTC_ARCH 179 #define LIBELF_BYTEORDER ELFTC_BYTEORDER 180 181 #endif /* defined(__linux__) */ 182 183 #if LIBELF_CLASS == ELFCLASS32 184 #define Elf_Note Elf32_Nhdr 185 #elif LIBELF_CLASS == ELFCLASS64 186 #define Elf_Note Elf64_Nhdr 187 #else 188 #error LIBELF_CLASS needs to be one of ELFCLASS32 or ELFCLASS64 189 #endif 190 191 #endif /* defined(__linux__) || defined(__GNU__) || defined(__GLIBC__) */ 192