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_NACL (NACL_SFI or NACL_NONSFI) / OS_NACL_SFI / OS_NACL_NONSFI 9 // OS_CHROMEOS is set by the build system 10 // Compiler: 11 // COMPILER_MSVC / COMPILER_GCC 12 // Processor: 13 // ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_X86_FAMILY (X86 or X86_64) 14 // ARCH_CPU_32_BITS / ARCH_CPU_64_BITS 15 16 #ifndef BUILD_BUILD_CONFIG_H_ 17 #define BUILD_BUILD_CONFIG_H_ 18 19 // A set of macros to use for platform detection. 20 #if defined(__native_client__) 21 // __native_client__ must be first, so that other OS_ defines are not set. 22 #define OS_NACL 1 23 // OS_NACL comes in two sandboxing technology flavors, SFI or Non-SFI. 24 // PNaCl toolchain defines __native_client_nonsfi__ macro in Non-SFI build 25 // mode, while it does not in SFI build mode. 26 #if defined(__native_client_nonsfi__) 27 #define OS_NACL_NONSFI 28 #else 29 #define OS_NACL_SFI 30 #endif 31 #elif defined(ANDROID) 32 #define OS_ANDROID 1 33 #elif defined(__APPLE__) 34 // only include TargetConditions after testing ANDROID as some android builds 35 // on mac don't have this header available and it's not needed unless the target 36 // is really mac/ios. 37 #include <TargetConditionals.h> 38 #define OS_MACOSX 1 39 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE 40 #define OS_IOS 1 41 #endif // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE 42 #elif defined(__linux__) 43 #define OS_LINUX 1 44 // include a system header to pull in features.h for glibc/uclibc macros. 45 #include <unistd.h> 46 #if defined(__GLIBC__) && !defined(__UCLIBC__) 47 // we really are using glibc, not uClibc pretending to be glibc 48 #define LIBC_GLIBC 1 49 #endif 50 #elif defined(_WIN32) 51 #define OS_WIN 1 52 #elif defined(__FreeBSD__) 53 #define OS_FREEBSD 1 54 #elif defined(__NetBSD__) 55 #define OS_NETBSD 1 56 #elif defined(__OpenBSD__) 57 #define OS_OPENBSD 1 58 #elif defined(__sun) 59 #define OS_SOLARIS 1 60 #elif defined(__QNXNTO__) 61 #define OS_QNX 1 62 #else 63 #error Please add support for your platform in build/build_config.h 64 #endif 65 66 #if defined(USE_OPENSSL_CERTS) && defined(USE_NSS_CERTS) 67 #error Cannot use both OpenSSL and NSS for certificates 68 #endif 69 70 // For access to standard BSD features, use OS_BSD instead of a 71 // more specific macro. 72 #if defined(OS_FREEBSD) || defined(OS_NETBSD) || defined(OS_OPENBSD) 73 #define OS_BSD 1 74 #endif 75 76 // For access to standard POSIXish features, use OS_POSIX instead of a 77 // more specific macro. 78 #if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) || \ 79 defined(OS_NETBSD) || defined(OS_OPENBSD) || defined(OS_SOLARIS) || \ 80 defined(OS_ANDROID) || defined(OS_OPENBSD) || defined(OS_SOLARIS) || \ 81 defined(OS_ANDROID) || defined(OS_NACL) || defined(OS_QNX) 82 #define OS_POSIX 1 83 #endif 84 85 // Use tcmalloc 86 #if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ 87 !defined(NO_TCMALLOC) 88 #define USE_TCMALLOC 1 89 #endif 90 91 // Compiler detection. 92 #if defined(__GNUC__) 93 #define COMPILER_GCC 1 94 #elif defined(_MSC_VER) 95 #define COMPILER_MSVC 1 96 #else 97 #error Please add support for your compiler in build/build_config.h 98 #endif 99 100 // Processor architecture detection. For more info on what's defined, see: 101 // http://msdn.microsoft.com/en-us/library/b0084kay.aspx 102 // http://www.agner.org/optimize/calling_conventions.pdf 103 // or with gcc, run: "echo | gcc -E -dM -" 104 #if defined(_M_X64) || defined(__x86_64__) 105 #define ARCH_CPU_X86_FAMILY 1 106 #define ARCH_CPU_X86_64 1 107 #define ARCH_CPU_64_BITS 1 108 #define ARCH_CPU_LITTLE_ENDIAN 1 109 #elif defined(_M_IX86) || defined(__i386__) 110 #define ARCH_CPU_X86_FAMILY 1 111 #define ARCH_CPU_X86 1 112 #define ARCH_CPU_32_BITS 1 113 #define ARCH_CPU_LITTLE_ENDIAN 1 114 #elif defined(__s390x__) 115 #define ARCH_CPU_S390_FAMILY 1 116 #define ARCH_CPU_S390X 1 117 #define ARCH_CPU_64_BITS 1 118 #define ARCH_CPU_BIG_ENDIAN 1 119 #elif defined(__s390__) 120 #define ARCH_CPU_S390_FAMILY 1 121 #define ARCH_CPU_S390 1 122 #define ARCH_CPU_31_BITS 1 123 #define ARCH_CPU_BIG_ENDIAN 1 124 #elif defined(__PPC64__) && defined(__BIG_ENDIAN__) 125 #define ARCH_CPU_PPC64_FAMILY 1 126 #define ARCH_CPU_PPC64 1 127 #define ARCH_CPU_64_BITS 1 128 #define ARCH_CPU_BIG_ENDIAN 1 129 #elif defined(__PPC64__) && defined(__LITTLE_ENDIAN__) 130 #define ARCH_CPU_PPC64_FAMILY 1 131 #define ARCH_CPU_PPC64 1 132 #define ARCH_CPU_64_BITS 1 133 #define ARCH_CPU_LITTLE_ENDIAN 1 134 #elif defined(__PPC__) 135 #define ARCH_CPU_PPC_FAMILY 1 136 #define ARCH_CPU_PPC 1 137 #define ARCH_CPU_32_BITS 1 138 #define ARCH_CPU_BIG_ENDIAN 1 139 #elif defined(__ARMEL__) 140 #define ARCH_CPU_ARM_FAMILY 1 141 #define ARCH_CPU_ARMEL 1 142 #define ARCH_CPU_32_BITS 1 143 #define ARCH_CPU_LITTLE_ENDIAN 1 144 #elif defined(__aarch64__) 145 #define ARCH_CPU_ARM_FAMILY 1 146 #define ARCH_CPU_ARM64 1 147 #define ARCH_CPU_64_BITS 1 148 #define ARCH_CPU_LITTLE_ENDIAN 1 149 #elif defined(__pnacl__) 150 #define ARCH_CPU_32_BITS 1 151 #define ARCH_CPU_LITTLE_ENDIAN 1 152 #elif defined(__MIPSEL__) 153 #if defined(__LP64__) 154 #define ARCH_CPU_MIPS_FAMILY 1 155 #define ARCH_CPU_MIPS64EL 1 156 #define ARCH_CPU_64_BITS 1 157 #define ARCH_CPU_LITTLE_ENDIAN 1 158 #else 159 #define ARCH_CPU_MIPS_FAMILY 1 160 #define ARCH_CPU_MIPSEL 1 161 #define ARCH_CPU_32_BITS 1 162 #define ARCH_CPU_LITTLE_ENDIAN 1 163 #endif 164 #else 165 #error Please add support for your architecture in build/build_config.h 166 #endif 167 168 // Type detection for wchar_t. 169 #if defined(OS_WIN) 170 #define WCHAR_T_IS_UTF16 171 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \ 172 (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) 173 #define WCHAR_T_IS_UTF32 174 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \ 175 (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff) 176 // On Posix, we'll detect short wchar_t, but projects aren't guaranteed to 177 // compile in this mode (in particular, Chrome doesn't). This is intended for 178 // other projects using base who manage their own dependencies and make sure 179 // short wchar works for them. 180 #define WCHAR_T_IS_UTF16 181 #else 182 #error Please add support for your compiler in build/build_config.h 183 #endif 184 185 #if defined(OS_ANDROID) 186 // The compiler thinks std::string::const_iterator and "const char*" are 187 // equivalent types. 188 #define STD_STRING_ITERATOR_IS_CHAR_POINTER 189 // The compiler thinks base::string16::const_iterator and "char16*" are 190 // equivalent types. 191 #define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER 192 #endif 193 194 #endif // BUILD_BUILD_CONFIG_H_ 195
