build_config.h revision 5d1f7b1de12d16ceb2c938c56701a3e8bfa558f7
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) && !defined(USE_AURA) 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#elif defined(__QNXNTO__) 54#define OS_QNX 1 55#else 56#error Please add support for your platform in build/build_config.h 57#endif 58 59#if defined(USE_OPENSSL) && defined(USE_NSS) 60#error Cannot use both OpenSSL and NSS 61#endif 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_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_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) || \ 72 defined(OS_OPENBSD) || defined(OS_SOLARIS) || defined(OS_ANDROID) || \ 73 defined(OS_NACL) || defined(OS_QNX) 74#define OS_POSIX 1 75#endif 76 77// Use tcmalloc 78#if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ 79 !defined(NO_TCMALLOC) 80#define USE_TCMALLOC 1 81#endif 82 83// Compiler detection. 84#if defined(__GNUC__) 85#define COMPILER_GCC 1 86#elif defined(_MSC_VER) 87#define COMPILER_MSVC 1 88#else 89#error Please add support for your compiler in build/build_config.h 90#endif 91 92// Processor architecture detection. For more info on what's defined, see: 93// http://msdn.microsoft.com/en-us/library/b0084kay.aspx 94// http://www.agner.org/optimize/calling_conventions.pdf 95// or with gcc, run: "echo | gcc -E -dM -" 96#if defined(_M_X64) || defined(__x86_64__) 97#define ARCH_CPU_X86_FAMILY 1 98#define ARCH_CPU_X86_64 1 99#define ARCH_CPU_64_BITS 1 100#define ARCH_CPU_LITTLE_ENDIAN 1 101#elif defined(_M_IX86) || defined(__i386__) 102#define ARCH_CPU_X86_FAMILY 1 103#define ARCH_CPU_X86 1 104#define ARCH_CPU_32_BITS 1 105#define ARCH_CPU_LITTLE_ENDIAN 1 106#elif defined(__ARMEL__) 107#define ARCH_CPU_ARM_FAMILY 1 108#define ARCH_CPU_ARMEL 1 109#define ARCH_CPU_32_BITS 1 110#define ARCH_CPU_LITTLE_ENDIAN 1 111#elif defined(__arm64__) 112#define ARCH_CPU_ARM_FAMILY 1 113#define ARCH_CPU_ARM64 1 114#define ARCH_CPU_64_BITS 1 115#define ARCH_CPU_LITTLE_ENDIAN 1 116#elif defined(__pnacl__) 117#define ARCH_CPU_32_BITS 1 118#define ARCH_CPU_LITTLE_ENDIAN 1 119#elif defined(__MIPSEL__) 120#define ARCH_CPU_MIPS_FAMILY 1 121#define ARCH_CPU_MIPSEL 1 122#define ARCH_CPU_32_BITS 1 123#define ARCH_CPU_LITTLE_ENDIAN 1 124#else 125#error Please add support for your architecture in build/build_config.h 126#endif 127 128// Type detection for wchar_t. 129#if defined(OS_WIN) 130#define WCHAR_T_IS_UTF16 131#elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 132 defined(__WCHAR_MAX__) && \ 133 (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) 134#define WCHAR_T_IS_UTF32 135#elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 136 defined(__WCHAR_MAX__) && \ 137 (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff) 138// On Posix, we'll detect short wchar_t, but projects aren't guaranteed to 139// compile in this mode (in particular, Chrome doesn't). This is intended for 140// other projects using base who manage their own dependencies and make sure 141// short wchar works for them. 142#define WCHAR_T_IS_UTF16 143#else 144#error Please add support for your compiler in build/build_config.h 145#endif 146 147#if defined(__ARMEL__) && !defined(OS_IOS) 148#define WCHAR_T_IS_UNSIGNED 1 149#elif defined(__MIPSEL__) 150#define WCHAR_T_IS_UNSIGNED 0 151#endif 152 153#if defined(OS_ANDROID) 154// The compiler thinks std::string::const_iterator and "const char*" are 155// equivalent types. 156#define STD_STRING_ITERATOR_IS_CHAR_POINTER 157// The compiler thinks base::string16::const_iterator and "char16*" are 158// equivalent types. 159#define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER 160#endif 161 162#endif // BUILD_BUILD_CONFIG_H_ 163