1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // This file adds defines about the platform we're currently building on. 6 // Operating System: 7 // OS_WIN / OS_MACOSX / OS_LINUX / OS_POSIX (MACOSX or LINUX) / 8 // OS_CHROMEOS is set by the build system 9 // Compiler: 10 // COMPILER_MSVC / COMPILER_GCC 11 // Processor: 12 // ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_X86_FAMILY (X86 or X86_64) 13 // ARCH_CPU_32_BITS / ARCH_CPU_64_BITS 14 15 #ifndef BUILD_BUILD_CONFIG_H_ 16 #define BUILD_BUILD_CONFIG_H_ 17 18 #if defined(ANDROID) 19 #define OS_ANDROID 1 20 #elif defined(__APPLE__) 21 // only include TargetConditions after testing ANDROID as some android builds 22 // on mac don't have this header available and it's not needed unless the target 23 // is really mac/ios. 24 #include <TargetConditionals.h> 25 #define OS_MACOSX 1 26 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE 27 #define OS_IOS 1 28 #endif // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE 29 #elif defined(__linux__) 30 #define OS_LINUX 1 31 // include a system header to pull in features.h for glibc/uclibc macros. 32 #include <unistd.h> 33 #if defined(__GLIBC__) && !defined(__UCLIBC__) 34 // we really are using glibc, not uClibc pretending to be glibc 35 #define LIBC_GLIBC 1 36 #endif 37 #elif defined(__MSYS__) 38 #define OS_MSYS 1 39 #elif defined(_WIN32) 40 #define OS_WIN 1 41 #elif defined(__Fuchsia__) 42 #define OS_FUCHSIA 1 43 #elif defined(__FreeBSD__) 44 #define OS_FREEBSD 1 45 #elif defined(__NetBSD__) 46 #define OS_NETBSD 1 47 #elif defined(__OpenBSD__) 48 #define OS_OPENBSD 1 49 #elif defined(__sun) 50 #define OS_SOLARIS 1 51 #elif defined(__QNXNTO__) 52 #define OS_QNX 1 53 #elif defined(_AIX) 54 #define OS_AIX 1 55 #elif defined(__asmjs__) 56 #define OS_ASMJS 1 57 #elif defined(__HAIKU__) 58 #define OS_HAIKU 1 59 #elif defined(__MVS__) 60 #include "zos-base.h" 61 #define OS_ZOS 1 62 #else 63 #error Please add support for your platform in build_config.h 64 #endif 65 // NOTE: Adding a new port? Please follow 66 // https://chromium.googlesource.com/chromium/src/+/master/docs/new_port_policy.md 67 68 // For access to standard BSD features, use OS_BSD instead of a 69 // more specific macro. 70 #if defined(OS_FREEBSD) || defined(OS_NETBSD) || defined(OS_OPENBSD) 71 #define OS_BSD 1 72 #endif 73 74 // For access to standard POSIXish features, use OS_POSIX instead of a 75 // more specific macro. 76 #if defined(OS_AIX) || defined(OS_ANDROID) || defined(OS_ASMJS) || \ 77 defined(OS_FREEBSD) || defined(OS_LINUX) || defined(OS_MACOSX) || \ 78 defined(OS_NACL) || defined(OS_NETBSD) || defined(OS_OPENBSD) || \ 79 defined(OS_QNX) || defined(OS_SOLARIS) || defined(OS_HAIKU) || \ 80 defined(OS_MSYS) || defined(OS_ZOS) 81 #define OS_POSIX 1 82 #endif 83 84 // Use tcmalloc 85 #if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ 86 !defined(NO_TCMALLOC) 87 #define USE_TCMALLOC 1 88 #endif 89 90 // Compiler detection. 91 #if defined(__GNUC__) 92 #define COMPILER_GCC 1 93 #elif defined(_MSC_VER) 94 #define COMPILER_MSVC 1 95 #else 96 #error Please add support for your compiler in build_config.h 97 #endif 98 99 // Processor architecture detection. For more info on what's defined, see: 100 // http://msdn.microsoft.com/en-us/library/b0084kay.aspx 101 // http://www.agner.org/optimize/calling_conventions.pdf 102 // or with gcc, run: "echo | gcc -E -dM -" 103 #if defined(_M_X64) || defined(__x86_64__) 104 #define ARCH_CPU_X86_FAMILY 1 105 #define ARCH_CPU_X86_64 1 106 #define ARCH_CPU_64_BITS 1 107 #define ARCH_CPU_LITTLE_ENDIAN 1 108 #elif defined(_M_IX86) || defined(__i386__) 109 #define ARCH_CPU_X86_FAMILY 1 110 #define ARCH_CPU_X86 1 111 #define ARCH_CPU_32_BITS 1 112 #define ARCH_CPU_LITTLE_ENDIAN 1 113 #elif defined(__s390x__) 114 #define ARCH_CPU_S390_FAMILY 1 115 #define ARCH_CPU_S390X 1 116 #define ARCH_CPU_64_BITS 1 117 #define ARCH_CPU_BIG_ENDIAN 1 118 #elif defined(__s390__) 119 #define ARCH_CPU_S390_FAMILY 1 120 #define ARCH_CPU_S390 1 121 #define ARCH_CPU_31_BITS 1 122 #define ARCH_CPU_BIG_ENDIAN 1 123 #elif (defined(__PPC64__) || defined(__PPC__)) && defined(__BIG_ENDIAN__) 124 #define ARCH_CPU_PPC64_FAMILY 1 125 #define ARCH_CPU_PPC64 1 126 #define ARCH_CPU_64_BITS 1 127 #define ARCH_CPU_BIG_ENDIAN 1 128 #elif defined(__PPC64__) 129 #define ARCH_CPU_PPC64_FAMILY 1 130 #define ARCH_CPU_PPC64 1 131 #define ARCH_CPU_64_BITS 1 132 #define ARCH_CPU_LITTLE_ENDIAN 1 133 #elif defined(__ARMEL__) 134 #define ARCH_CPU_ARM_FAMILY 1 135 #define ARCH_CPU_ARMEL 1 136 #define ARCH_CPU_32_BITS 1 137 #define ARCH_CPU_LITTLE_ENDIAN 1 138 #elif defined(__aarch64__) 139 #define ARCH_CPU_ARM_FAMILY 1 140 #define ARCH_CPU_ARM64 1 141 #define ARCH_CPU_64_BITS 1 142 #define ARCH_CPU_LITTLE_ENDIAN 1 143 #elif defined(__pnacl__) || defined(__asmjs__) 144 #define ARCH_CPU_32_BITS 1 145 #define ARCH_CPU_LITTLE_ENDIAN 1 146 #elif defined(__MIPSEL__) 147 #if defined(__LP64__) 148 #define ARCH_CPU_MIPS_FAMILY 1 149 #define ARCH_CPU_MIPS64EL 1 150 #define ARCH_CPU_64_BITS 1 151 #define ARCH_CPU_LITTLE_ENDIAN 1 152 #else 153 #define ARCH_CPU_MIPS_FAMILY 1 154 #define ARCH_CPU_MIPSEL 1 155 #define ARCH_CPU_32_BITS 1 156 #define ARCH_CPU_LITTLE_ENDIAN 1 157 #endif 158 #elif defined(__MIPSEB__) 159 #if defined(__LP64__) 160 #define ARCH_CPU_MIPS_FAMILY 1 161 #define ARCH_CPU_MIPS64 1 162 #define ARCH_CPU_64_BITS 1 163 #define ARCH_CPU_BIG_ENDIAN 1 164 #else 165 #define ARCH_CPU_MIPS_FAMILY 1 166 #define ARCH_CPU_MIPS 1 167 #define ARCH_CPU_32_BITS 1 168 #define ARCH_CPU_BIG_ENDIAN 1 169 #endif 170 #elif defined(__e2k__) 171 #define ARCH_CPU_64_BITS 1 172 #define ARCH_CPU_LITTLE_ENDIAN 1 173 #elif defined(__riscv) && (__riscv_xlen == 64) 174 #define ARCH_CPU_64_BITS 1 175 #define ARCH_CPU_LITTLE_ENDIAN 1 176 #elif defined(__loongarch__) 177 #if defined(__LP64__) 178 #define ARCH_CPU_LOONG_FAMILY 1 179 #define ARCH_CPU_LOONG64 1 180 #define ARCH_CPU_64_BITS 1 181 #define ARCH_CPU_LITTLE_ENDIAN 1 182 #else 183 #define ARCH_CPU_LOONG_FAMILY 1 184 #define ARCH_CPU_LOONG32 1 185 #define ARCH_CPU_32_BITS 1 186 #define ARCH_CPU_LITTLE_ENDIAN 1 187 #endif 188 #else 189 #error Please add support for your architecture in build_config.h 190 #endif 191 192 #endif // BUILD_BUILD_CONFIG_H_ 193