/* * This file is part of the flashrom project. * * Copyright (C) 2011 Carl-Daniel Hailfinger * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ /* * Header file to determine target OS and CPU architecture. */ #ifndef __PLATFORM_H__ #define __PLATFORM_H__ 1 // Helper defines for operating systems #if defined(__gnu_linux__) || defined(__linux__) #define IS_LINUX 1 #else #define IS_LINUX 0 #endif #if defined(__APPLE__) && defined(__MACH__) /* yes, both. */ #define IS_MACOSX 1 #else #define IS_MACOSX 0 #endif #if defined(_WIN32) || defined(_WIN64) || defined(__WIN32__) || defined(__WINDOWS__) #define IS_WINDOWS 1 #else #define IS_WINDOWS 0 #endif // Likewise for target architectures #if defined (__i386__) || defined (__x86_64__) || defined(__amd64__) #define __FLASHROM_ARCH__ "x86" #define IS_X86 1 #elif defined (__mips) || defined (__mips__) || defined (__MIPS__) || defined (mips) #define __FLASHROM_ARCH__ "mips" #define IS_MIPS 1 #elif defined(__powerpc) || defined(__powerpc__) || defined(__powerpc64__) || defined(__POWERPC__) || \ defined(__ppc__) || defined(__ppc64__) || defined(_M_PPC) || defined(_ARCH_PPC) || \ defined(_ARCH_PPC64) || defined(__ppc) #define __FLASHROM_ARCH__ "ppc" #define IS_PPC 1 #elif defined(__arm__) || defined(__TARGET_ARCH_ARM) || defined(_ARM) || defined(_M_ARM) || defined(__arm) || \ defined(__aarch64__) #define __FLASHROM_ARCH__ "arm" #define IS_ARM 1 #elif defined (__sparc__) || defined (__sparc) #define __FLASHROM_ARCH__ "sparc" #define IS_SPARC 1 #elif defined (__alpha__) #define __FLASHROM_ARCH__ "alpha" #define IS_ALPHA 1 #elif defined (__hppa__) || defined (__hppa) #define __FLASHROM_ARCH__ "hppa" #define IS_HPPA 1 #elif defined (__m68k__) #define __FLASHROM_ARCH__ "m68k" #define IS_M68K 1 #elif defined (__riscv) #define __FLASHROM_ARCH__ "riscv" #define IS_RISCV 1 #elif defined (__sh__) #define __FLASHROM_ARCH__ "sh" #define IS_SH 1 #elif defined(__s390__) || defined(__s390x__) || defined(__zarch__) #define __FLASHROM_ARCH__ "s390" #define IS_S390 1 #elif defined(__arc__) #define __FLASHROM_ARCH__ "arc" #define IS_ARC 1 #endif #if !(IS_X86 || IS_MIPS || IS_PPC || IS_ARM || IS_SPARC || IS_ALPHA || IS_HPPA || IS_M68K || IS_RISCV || IS_SH || IS_S390 || IS_ARC) #error Unknown architecture #endif /* The next big hunk tries to guess endianness from various preprocessor macros */ /* First some error checking in case some weird header has defined both. * NB: OpenBSD always defines _BIG_ENDIAN and _LITTLE_ENDIAN. */ #if defined (__LITTLE_ENDIAN__) && defined (__BIG_ENDIAN__) #error Conflicting endianness #define #endif #if IS_X86 /* All x86 is little-endian. */ #define __FLASHROM_LITTLE_ENDIAN__ 1 #elif IS_MIPS /* MIPS can be either endian. */ #if defined (__MIPSEL) || defined (__MIPSEL__) || defined (_MIPSEL) || defined (MIPSEL) #define __FLASHROM_LITTLE_ENDIAN__ 1 #elif defined (__MIPSEB) || defined (__MIPSEB__) || defined (_MIPSEB) || defined (MIPSEB) #define __FLASHROM_BIG_ENDIAN__ 1 #endif #elif IS_PPC /* PowerPC can be either endian. */ #if defined (_BIG_ENDIAN) || defined (__BIG_ENDIAN__) #define __FLASHROM_BIG_ENDIAN__ 1 #elif defined (_LITTLE_ENDIAN) || defined (__LITTLE_ENDIAN__) #define __FLASHROM_LITTLE_ENDIAN__ 1 #endif #elif IS_ARM /* ARM can be either endian. */ #if defined (__ARMEB__) #define __FLASHROM_BIG_ENDIAN__ 1 #elif defined (__ARMEL__) #define __FLASHROM_LITTLE_ENDIAN__ 1 #endif #elif IS_SPARC /* SPARC is big endian in general (but allows to access data in little endian too). */ #define __FLASHROM_BIG_ENDIAN__ 1 #elif IS_ARC #if defined(__BIG_ENDIAN__) #define __FLASHROM_BIG_ENDIAN__ 1 #else #define __FLASHROM_LITTLE_ENDIAN__ 1 #endif #endif /* IS_? */ #if !defined (__FLASHROM_BIG_ENDIAN__) && !defined (__FLASHROM_LITTLE_ENDIAN__) /* If architecture-specific approaches fail try generic variants. First: BSD (works about everywhere). */ #if !IS_WINDOWS #include #if defined (__BYTE_ORDER) #if __BYTE_ORDER == __LITTLE_ENDIAN #define __FLASHROM_LITTLE_ENDIAN__ #elif __BYTE_ORDER == __BIG_ENDIAN #define __FLASHROM_BIG_ENDIAN__ #else #error Unknown byte order! #endif #endif /* defined __BYTE_ORDER */ #endif /* !IS_WINDOWS */ #if !defined (__FLASHROM_BIG_ENDIAN__) && !defined (__FLASHROM_LITTLE_ENDIAN__) /* Nonstandard libc-specific macros for determining endianness. */ /* musl provides an endian.h as well... but it can not be detected from within C. */ #if defined(__GLIBC__) #include #if BYTE_ORDER == LITTLE_ENDIAN #define __FLASHROM_LITTLE_ENDIAN__ 1 #elif BYTE_ORDER == BIG_ENDIAN #define __FLASHROM_BIG_ENDIAN__ 1 #endif #endif #endif #endif #if !defined (__FLASHROM_BIG_ENDIAN__) && !defined (__FLASHROM_LITTLE_ENDIAN__) #error Unable to determine endianness. #endif #endif /* !__PLATFORM_H__ */ id='n68' href='#n68'>68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200