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// A set of macros to use for platform detection. 18#if defined(__APPLE__) 19#define OS_MACOSX 1 20#elif defined(ANDROID) 21#define OS_ANDROID 1 22#elif defined(__linux__) 23#define OS_LINUX 1 24// Use TOOLKIT_GTK on linux if TOOLKIT_VIEWS isn't defined. 25#if !defined(TOOLKIT_VIEWS) 26#define TOOLKIT_GTK 27#endif 28#elif defined(_WIN32) 29#define OS_WIN 1 30#define TOOLKIT_VIEWS 1 31#elif defined(__FreeBSD__) 32#define OS_FREEBSD 1 33#define TOOLKIT_GTK 34#elif defined(__OpenBSD__) 35#define OS_OPENBSD 1 36#define TOOLKIT_GTK 37#elif defined(__sun) 38#define OS_SOLARIS 1 39#define TOOLKIT_GTK 40#else 41#error Please add support for your platform in build/build_config.h 42#endif 43 44#if defined(OS_LINUX) || defined(OS_FREEBSD) || defined(OS_OPENBSD) || \ 45 defined(OS_ANDROID) 46#define USE_NSS 1 // Use NSS for crypto. 47#ifndef OS_ANDROID 48#define USE_X11 1 // Use X for graphics. 49#endif 50#endif 51 52// For access to standard POSIXish features, use OS_POSIX instead of a 53// more specific macro. 54#if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) || \ 55 defined(OS_OPENBSD) || defined(OS_SOLARIS) || defined(OS_ANDROID) 56#define OS_POSIX 1 57// Use base::DataPack for name/value pairs. 58#define USE_BASE_DATA_PACK 1 59#endif 60 61// Use tcmalloc 62#if defined(OS_WIN) && ! defined(NO_TCMALLOC) 63#define USE_TCMALLOC 1 64#endif 65 66// Compiler detection. 67#if defined(__GNUC__) 68#define COMPILER_GCC 1 69#elif defined(_MSC_VER) 70#define COMPILER_MSVC 1 71#else 72#error Please add support for your compiler in build/build_config.h 73#endif 74 75// Processor architecture detection. For more info on what's defined, see: 76// http://msdn.microsoft.com/en-us/library/b0084kay.aspx 77// http://www.agner.org/optimize/calling_conventions.pdf 78// or with gcc, run: "echo | gcc -E -dM -" 79#if defined(_M_X64) || defined(__x86_64__) 80#define ARCH_CPU_X86_FAMILY 1 81#define ARCH_CPU_X86_64 1 82#define ARCH_CPU_64_BITS 1 83#elif defined(_M_IX86) || defined(__i386__) 84#define ARCH_CPU_X86_FAMILY 1 85#define ARCH_CPU_X86 1 86#define ARCH_CPU_32_BITS 1 87#elif defined(__ARMEL__) 88#define ARCH_CPU_ARM_FAMILY 1 89#define ARCH_CPU_ARMEL 1 90#define ARCH_CPU_32_BITS 1 91#define WCHAR_T_IS_UNSIGNED 1 92#elif defined(__aarch64__) 93#define ARCH_CPU_ARM_FAMILY 1 94#define ARCH_CPU_ARM64 1 95#define ARCH_CPU_64_BITS 1 96#define WCHAR_T_IS_UNSIGNED 1 97#elif defined(__MIPSEL__) 98#define ARCH_CPU_MIPS_FAMILY 1 99#define ARCH_CPU_MIPSEL 1 100#define ARCH_CPU_32_BITS 1 101#define WCHAR_T_IS_UNSIGNED 0 102#else 103#error Please add support for your architecture in build/build_config.h 104#endif 105 106// Type detection for wchar_t. 107#if defined(OS_WIN) 108#define WCHAR_T_IS_UTF16 109#elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 110 defined(__WCHAR_MAX__) && \ 111 (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) 112#define WCHAR_T_IS_UTF32 113#elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 114 defined(__WCHAR_MAX__) && \ 115 (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff) 116// On Posix, we'll detect short wchar_t, but projects aren't guaranteed to 117// compile in this mode (in particular, Chrome doesn't). This is intended for 118// other projects using base who manage their own dependencies and make sure 119// short wchar works for them. 120#define WCHAR_T_IS_UTF16 121#else 122#error Please add support for your compiler in build/build_config.h 123#endif 124 125#endif // BUILD_BUILD_CONFIG_H_ 126