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 // 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 // A set of macros to use for platform detection. 19 #if defined(__native_client__) 20 // __native_client__ must be first, so that other OS_ defines are not set. 21 #define OS_NACL 1 22 // OS_NACL comes in two sandboxing technology flavors, SFI or Non-SFI. 23 // PNaCl toolchain defines __native_client_nonsfi__ macro in Non-SFI build 24 // mode, while it does not in SFI build mode. 25 #if defined(__native_client_nonsfi__) 26 #define OS_NACL_NONSFI 27 #else 28 #define OS_NACL_SFI 29 #endif 30 #elif defined(ANDROID) 31 #define OS_ANDROID 1 32 #elif defined(__APPLE__) 33 // only include TargetConditions after testing ANDROID as some android builds 34 // on mac don't have this header available and it's not needed unless the target 35 // is really mac/ios. 36 #include <TargetConditionals.h> 37 #define OS_MACOSX 1 38 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE 39 #define OS_IOS 1 40 #endif // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE 41 #elif defined(__linux__) 42 #define OS_LINUX 1 43 // include a system header to pull in features.h for glibc/uclibc macros. 44 #include <unistd.h> 45 #if defined(__GLIBC__) && !defined(__UCLIBC__) 46 // we really are using glibc, not uClibc pretending to be glibc 47 #define LIBC_GLIBC 1 48 #endif 49 #elif defined(_WIN32) 50 #define OS_WIN 1 51 #define TOOLKIT_VIEWS 1 52 #elif defined(__FreeBSD__) || defined(__DragonFly__) 53 #define OS_FREEBSD 1 54 #elif defined(__OpenBSD__) 55 #define OS_OPENBSD 1 56 #elif defined(__sun) 57 #define OS_SOLARIS 1 58 #elif defined(__QNXNTO__) 59 #define OS_QNX 1 60 #else 61 #error Please add support for your platform in build/build_config.h 62 #endif 63 64 #if defined(USE_OPENSSL_CERTS) && defined(USE_NSS_CERTS) 65 #error Cannot use both OpenSSL and NSS for certificates 66 #endif 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_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_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) || \ 77 defined(OS_OPENBSD) || defined(OS_SOLARIS) || defined(OS_ANDROID) || \ 78 defined(OS_NACL) || defined(OS_QNX) 79 #define OS_POSIX 1 80 #endif 81 82 // Use tcmalloc 83 #if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ 84 !defined(NO_TCMALLOC) 85 #define USE_TCMALLOC 1 86 #endif 87 88 // Compiler detection. 89 #if defined(__GNUC__) 90 #define COMPILER_GCC 1 91 #elif defined(_MSC_VER) 92 #define COMPILER_MSVC 1 93 #else 94 #error Please add support for your compiler in build/build_config.h 95 #endif 96 97 // Processor architecture detection. For more info on what's defined, see: 98 // http://msdn.microsoft.com/en-us/library/b0084kay.aspx 99 // http://www.agner.org/optimize/calling_conventions.pdf 100 // or with gcc, run: "echo | gcc -E -dM -" 101 #if defined(_M_ARM) 102 #define ARCH_CPU_ARM_FAMILY 1 103 #define ARCH_CPU_ARMEL 1 104 #define ARCH_CPU_32_BITS 1 105 #define ARCH_CPU_LITTLE_ENDIAN 1 106 #elif defined(_M_X64) || defined(__x86_64__) 107 #define ARCH_CPU_X86_FAMILY 1 108 #define ARCH_CPU_X86_64 1 109 #define ARCH_CPU_64_BITS 1 110 #define ARCH_CPU_LITTLE_ENDIAN 1 111 #elif defined(_M_IX86) || defined(__i386__) 112 #define ARCH_CPU_X86_FAMILY 1 113 #define ARCH_CPU_X86 1 114 #define ARCH_CPU_32_BITS 1 115 #define ARCH_CPU_LITTLE_ENDIAN 1 116 #elif defined(__ARMEL__) 117 #define ARCH_CPU_ARM_FAMILY 1 118 #define ARCH_CPU_ARMEL 1 119 #define ARCH_CPU_32_BITS 1 120 #define ARCH_CPU_LITTLE_ENDIAN 1 121 #elif defined(__aarch64__) 122 #define ARCH_CPU_ARM_FAMILY 1 123 #define ARCH_CPU_ARM64 1 124 #define ARCH_CPU_64_BITS 1 125 #define ARCH_CPU_LITTLE_ENDIAN 1 126 #elif defined(__pnacl__) 127 #define ARCH_CPU_32_BITS 1 128 #define ARCH_CPU_LITTLE_ENDIAN 1 129 #elif defined(__MIPSEL__) 130 #if defined(__LP64__) 131 #define ARCH_CPU_MIPS64_FAMILY 1 132 #define ARCH_CPU_MIPS64EL 1 133 #define ARCH_CPU_64_BITS 1 134 #define ARCH_CPU_LITTLE_ENDIAN 1 135 #else 136 #define ARCH_CPU_MIPS_FAMILY 1 137 #define ARCH_CPU_MIPSEL 1 138 #define ARCH_CPU_32_BITS 1 139 #define ARCH_CPU_LITTLE_ENDIAN 1 140 #endif 141 #elif (defined(__PPC64__) || defined(__PPC__)) && defined(__BIG_ENDIAN__) 142 #define ARCH_CPU_PPC64_FAMILY 1 143 #define ARCH_CPU_PPC64 1 144 #define ARCH_CPU_64_BITS 1 145 #define ARCH_CPU_BIG_ENDIAN 1 146 #elif defined(__PPC64__) 147 #define ARCH_CPU_PPC64_FAMILY 1 148 #define ARCH_CPU_PPC64 1 149 #define ARCH_CPU_64_BITS 1 150 #define ARCH_CPU_LITTLE_ENDIAN 1 151 #elif defined(__riscv) || defined(__riscv__) 152 #define ARCH_CPU_RISCV_FAMILY 1 153 #define ARCH_CPU_RISCV 1 154 #define ARCH_CPU_LITTLE_ENDIAN 1 155 #if defined(__riscv_xlen) 156 # if (__riscv_xlen == 64) 157 # define ARCH_CPU_64_BITS 1 158 # else 159 # define ARCH_CPU_32_BITS 1 160 # endif 161 #endif 162 # else 163 #error Please add support for your architecture in build/build_config. 164 #endif 165 166 // Type detection for wchar_t. 167 #if defined(OS_WIN) 168 #define WCHAR_T_IS_UTF16 169 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 170 defined(__WCHAR_MAX__) && \ 171 (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) 172 #define WCHAR_T_IS_UTF32 173 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 174 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