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 // Compiler: 9 // COMPILER_MSVC / COMPILER_GCC 10 // Processor: 11 // ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_X86_FAMILY (X86 or X86_64) 12 // ARCH_CPU_32_BITS / ARCH_CPU_64_BITS 13 14 #ifndef BUILD_BUILD_CONFIG_H_ 15 #define BUILD_BUILD_CONFIG_H_ 16 17 #if defined(__APPLE__) 18 #include <TargetConditionals.h> 19 #endif 20 21 // A set of macros to use for platform detection. 22 #if defined(ANDROID) 23 #define OS_ANDROID 1 24 #elif defined(__APPLE__) 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(__native_client__) 30 #define OS_NACL 1 31 #elif defined(__linux__) 32 #define OS_LINUX 1 33 // Use TOOLKIT_GTK on linux if TOOLKIT_VIEWS isn't defined. 34 #if !defined(TOOLKIT_VIEWS) && defined(USE_X11) 35 #define TOOLKIT_GTK 36 #endif 37 #if defined(__GLIBC__) && !defined(__UCLIBC__) 38 // we really are using glibc, not uClibc pretending to be glibc 39 #define LIBC_GLIBC 40 #endif 41 #elif defined(_WIN32) 42 #define OS_WIN 1 43 #define TOOLKIT_VIEWS 1 44 #elif defined(__FreeBSD__) 45 #define OS_FREEBSD 1 46 #define TOOLKIT_GTK 47 #elif defined(__OpenBSD__) 48 #define OS_OPENBSD 1 49 #define TOOLKIT_GTK 50 #elif defined(__sun) 51 #define OS_SOLARIS 1 52 #define TOOLKIT_GTK 53 #else 54 #error Please add support for your platform in build/build_config.h 55 #endif 56 57 #if defined(USE_OPENSSL) && defined(USE_NSS) 58 #error Cannot use both OpenSSL and NSS 59 #endif 60 61 // For access to standard BSD features, use OS_BSD instead of a 62 // more specific macro. 63 #if defined(OS_FREEBSD) || defined(OS_OPENBSD) 64 #define OS_BSD 1 65 #endif 66 67 // For access to standard POSIXish features, use OS_POSIX instead of a 68 // more specific macro. 69 #if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) || \ 70 defined(OS_OPENBSD) || defined(OS_SOLARIS) || defined(OS_ANDROID) || \ 71 defined(OS_NACL) 72 #define OS_POSIX 1 73 #endif 74 75 // Use tcmalloc 76 #if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ 77 !defined(NO_TCMALLOC) 78 #define USE_TCMALLOC 1 79 #endif 80 81 // Compiler detection. 82 #if defined(__GNUC__) 83 #define COMPILER_GCC 1 84 #elif defined(_MSC_VER) 85 #define COMPILER_MSVC 1 86 #else 87 #error Please add support for your compiler in build/build_config.h 88 #endif 89 90 // Processor architecture detection. For more info on what's defined, see: 91 // http://msdn.microsoft.com/en-us/library/b0084kay.aspx 92 // http://www.agner.org/optimize/calling_conventions.pdf 93 // or with gcc, run: "echo | gcc -E -dM -" 94 #if defined(_M_X64) || defined(__x86_64__) 95 #define ARCH_CPU_X86_FAMILY 1 96 #define ARCH_CPU_X86_64 1 97 #define ARCH_CPU_64_BITS 1 98 #define ARCH_CPU_LITTLE_ENDIAN 1 99 #elif defined(_M_IX86) || defined(__i386__) 100 #define ARCH_CPU_X86_FAMILY 1 101 #define ARCH_CPU_X86 1 102 #define ARCH_CPU_32_BITS 1 103 #define ARCH_CPU_LITTLE_ENDIAN 1 104 #elif defined(__ARMEL__) 105 #define ARCH_CPU_ARM_FAMILY 1 106 #define ARCH_CPU_ARMEL 1 107 #define ARCH_CPU_32_BITS 1 108 #define ARCH_CPU_LITTLE_ENDIAN 1 109 #elif defined(__pnacl__) 110 #define ARCH_CPU_32_BITS 1 111 #elif defined(__MIPSEL__) 112 #define ARCH_CPU_MIPS_FAMILY 1 113 #define ARCH_CPU_MIPSEL 1 114 #define ARCH_CPU_32_BITS 1 115 #define ARCH_CPU_LITTLE_ENDIAN 1 116 #else 117 #error Please add support for your architecture in build/build_config.h 118 #endif 119 120 // Type detection for wchar_t. 121 #if defined(OS_WIN) 122 #define WCHAR_T_IS_UTF16 123 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 124 defined(__WCHAR_MAX__) && \ 125 (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) 126 #define WCHAR_T_IS_UTF32 127 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 128 defined(__WCHAR_MAX__) && \ 129 (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff) 130 // On Posix, we'll detect short wchar_t, but projects aren't guaranteed to 131 // compile in this mode (in particular, Chrome doesn't). This is intended for 132 // other projects using base who manage their own dependencies and make sure 133 // short wchar works for them. 134 #define WCHAR_T_IS_UTF16 135 #else 136 #error Please add support for your compiler in build/build_config.h 137 #endif 138 139 #if defined(__ARMEL__) && !defined(OS_IOS) 140 #define WCHAR_T_IS_UNSIGNED 1 141 #elif defined(__MIPSEL__) 142 #define WCHAR_T_IS_UNSIGNED 0 143 #endif 144 145 #if defined(OS_ANDROID) 146 // The compiler thinks std::string::const_iterator and "const char*" are 147 // equivalent types. 148 #define STD_STRING_ITERATOR_IS_CHAR_POINTER 149 // The compiler thinks base::string16::const_iterator and "char16*" are 150 // equivalent types. 151 #define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER 152 #endif 153 154 #endif // BUILD_BUILD_CONFIG_H_ 155
