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(_WIN32) 38 #define OS_WIN 1 39 #elif defined(__Fuchsia__) 40 #define OS_FUCHSIA 1 41 #elif defined(__FreeBSD__) 42 #define OS_FREEBSD 1 43 #elif defined(__NetBSD__) 44 #define OS_NETBSD 1 45 #elif defined(__OpenBSD__) 46 #define OS_OPENBSD 1 47 #elif defined(__sun) 48 #define OS_SOLARIS 1 49 #elif defined(__QNXNTO__) 50 #define OS_QNX 1 51 #elif defined(_AIX) 52 #define OS_AIX 1 53 #elif defined(__asmjs__) 54 #define OS_ASMJS 1 55 #elif defined(__HAIKU__) 56 #define OS_HAIKU 1 57 #else 58 #error Please add support for your platform in build_config.h 59 #endif 60 // NOTE: Adding a new port? Please follow 61 // https://chromium.googlesource.com/chromium/src/+/master/docs/new_port_policy.md 62 63 // For access to standard BSD features, use OS_BSD instead of a 64 // more specific macro. 65 #if defined(OS_FREEBSD) || defined(OS_NETBSD) || defined(OS_OPENBSD) 66 #define OS_BSD 1 67 #endif 68 69 // For access to standard POSIXish features, use OS_POSIX instead of a 70 // more specific macro. 71 #if defined(OS_AIX) || defined(OS_ANDROID) || defined(OS_ASMJS) || \ 72 defined(OS_FREEBSD) || defined(OS_LINUX) || defined(OS_MACOSX) || \ 73 defined(OS_NACL) || defined(OS_NETBSD) || defined(OS_OPENBSD) || \ 74 defined(OS_QNX) || defined(OS_SOLARIS) || defined(OS_HAIKU) 75 #define OS_POSIX 1 76 #endif 77 78 // Use tcmalloc 79 #if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ 80 !defined(NO_TCMALLOC) 81 #define USE_TCMALLOC 1 82 #endif 83 84 // Compiler detection. 85 #if defined(__GNUC__) 86 #define COMPILER_GCC 1 87 #elif defined(_MSC_VER) 88 #define COMPILER_MSVC 1 89 #else 90 #error Please add support for your compiler in build_config.h 91 #endif 92 93 // Processor architecture detection. For more info on what's defined, see: 94 // http://msdn.microsoft.com/en-us/library/b0084kay.aspx 95 // http://www.agner.org/optimize/calling_conventions.pdf 96 // or with gcc, run: "echo | gcc -E -dM -" 97 #if defined(_M_X64) || defined(__x86_64__) 98 #define ARCH_CPU_X86_FAMILY 1 99 #define ARCH_CPU_X86_64 1 100 #define ARCH_CPU_64_BITS 1 101 #define ARCH_CPU_LITTLE_ENDIAN 1 102 #elif defined(_M_IX86) || defined(__i386__) 103 #define ARCH_CPU_X86_FAMILY 1 104 #define ARCH_CPU_X86 1 105 #define ARCH_CPU_32_BITS 1 106 #define ARCH_CPU_LITTLE_ENDIAN 1 107 #elif defined(__s390x__) 108 #define ARCH_CPU_S390_FAMILY 1 109 #define ARCH_CPU_S390X 1 110 #define ARCH_CPU_64_BITS 1 111 #define ARCH_CPU_BIG_ENDIAN 1 112 #elif defined(__s390__) 113 #define ARCH_CPU_S390_FAMILY 1 114 #define ARCH_CPU_S390 1 115 #define ARCH_CPU_31_BITS 1 116 #define ARCH_CPU_BIG_ENDIAN 1 117 #elif (defined(__PPC64__) || defined(__PPC__)) && defined(__BIG_ENDIAN__) 118 #define ARCH_CPU_PPC64_FAMILY 1 119 #define ARCH_CPU_PPC64 1 120 #define ARCH_CPU_64_BITS 1 121 #define ARCH_CPU_BIG_ENDIAN 1 122 #elif defined(__PPC64__) 123 #define ARCH_CPU_PPC64_FAMILY 1 124 #define ARCH_CPU_PPC64 1 125 #define ARCH_CPU_64_BITS 1 126 #define ARCH_CPU_LITTLE_ENDIAN 1 127 #elif defined(__ARMEL__) 128 #define ARCH_CPU_ARM_FAMILY 1 129 #define ARCH_CPU_ARMEL 1 130 #define ARCH_CPU_32_BITS 1 131 #define ARCH_CPU_LITTLE_ENDIAN 1 132 #elif defined(__aarch64__) 133 #define ARCH_CPU_ARM_FAMILY 1 134 #define ARCH_CPU_ARM64 1 135 #define ARCH_CPU_64_BITS 1 136 #define ARCH_CPU_LITTLE_ENDIAN 1 137 #elif defined(__pnacl__) || defined(__asmjs__) 138 #define ARCH_CPU_32_BITS 1 139 #define ARCH_CPU_LITTLE_ENDIAN 1 140 #elif defined(__MIPSEL__) 141 #if defined(__LP64__) 142 #define ARCH_CPU_MIPS_FAMILY 1 143 #define ARCH_CPU_MIPS64EL 1 144 #define ARCH_CPU_64_BITS 1 145 #define ARCH_CPU_LITTLE_ENDIAN 1 146 #else 147 #define ARCH_CPU_MIPS_FAMILY 1 148 #define ARCH_CPU_MIPSEL 1 149 #define ARCH_CPU_32_BITS 1 150 #define ARCH_CPU_LITTLE_ENDIAN 1 151 #endif 152 #elif defined(__MIPSEB__) 153 #if defined(__LP64__) 154 #define ARCH_CPU_MIPS_FAMILY 1 155 #define ARCH_CPU_MIPS64 1 156 #define ARCH_CPU_64_BITS 1 157 #define ARCH_CPU_BIG_ENDIAN 1 158 #else 159 #define ARCH_CPU_MIPS_FAMILY 1 160 #define ARCH_CPU_MIPS 1 161 #define ARCH_CPU_32_BITS 1 162 #define ARCH_CPU_BIG_ENDIAN 1 163 #endif 164 #else 165 #error Please add support for your architecture in build_config.h 166 #endif 167 168 #endif // BUILD_BUILD_CONFIG_H_ 169