build_config.h revision 0529e5d033099cbfc42635f6f6183833b09dff6e
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// include a system header to pull in features.h for glibc/uclibc macros. 34#include <unistd.h> 35#if defined(__GLIBC__) && !defined(__UCLIBC__) 36// we really are using glibc, not uClibc pretending to be glibc 37#define LIBC_GLIBC 1 38#endif 39#elif defined(_WIN32) 40#define OS_WIN 1 41#define TOOLKIT_VIEWS 1 42#elif defined(__FreeBSD__) 43#define OS_FREEBSD 1 44#elif defined(__OpenBSD__) 45#define OS_OPENBSD 1 46#elif defined(__sun) 47#define OS_SOLARIS 1 48#elif defined(__QNXNTO__) 49#define OS_QNX 1 50#else 51#error Please add support for your platform in build/build_config.h 52#endif 53 54#if defined(USE_OPENSSL) && defined(USE_NSS) 55#error Cannot use both OpenSSL and NSS 56#endif 57 58// For access to standard BSD features, use OS_BSD instead of a 59// more specific macro. 60#if defined(OS_FREEBSD) || defined(OS_OPENBSD) 61#define OS_BSD 1 62#endif 63 64// For access to standard POSIXish features, use OS_POSIX instead of a 65// more specific macro. 66#if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) || \ 67 defined(OS_OPENBSD) || defined(OS_SOLARIS) || defined(OS_ANDROID) || \ 68 defined(OS_NACL) || defined(OS_QNX) 69#define OS_POSIX 1 70#endif 71 72// Use tcmalloc 73#if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ 74 !defined(NO_TCMALLOC) 75#define USE_TCMALLOC 1 76#endif 77 78// Compiler detection. 79#if defined(__GNUC__) 80#define COMPILER_GCC 1 81#elif defined(_MSC_VER) 82#define COMPILER_MSVC 1 83#else 84#error Please add support for your compiler in build/build_config.h 85#endif 86 87// Processor architecture detection. For more info on what's defined, see: 88// http://msdn.microsoft.com/en-us/library/b0084kay.aspx 89// http://www.agner.org/optimize/calling_conventions.pdf 90// or with gcc, run: "echo | gcc -E -dM -" 91#if defined(_M_X64) || defined(__x86_64__) 92#define ARCH_CPU_X86_FAMILY 1 93#define ARCH_CPU_X86_64 1 94#define ARCH_CPU_64_BITS 1 95#define ARCH_CPU_LITTLE_ENDIAN 1 96#elif defined(_M_IX86) || defined(__i386__) 97#define ARCH_CPU_X86_FAMILY 1 98#define ARCH_CPU_X86 1 99#define ARCH_CPU_32_BITS 1 100#define ARCH_CPU_LITTLE_ENDIAN 1 101#elif defined(__ARMEL__) 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(__aarch64__) 107#define ARCH_CPU_ARM_FAMILY 1 108#define ARCH_CPU_ARM64 1 109#define ARCH_CPU_64_BITS 1 110#define ARCH_CPU_LITTLE_ENDIAN 1 111#elif defined(__pnacl__) 112#define ARCH_CPU_32_BITS 1 113#define ARCH_CPU_LITTLE_ENDIAN 1 114#elif defined(__MIPSEL__) 115#define ARCH_CPU_MIPS_FAMILY 1 116#define ARCH_CPU_MIPSEL 1 117#define ARCH_CPU_32_BITS 1 118#define ARCH_CPU_LITTLE_ENDIAN 1 119#else 120#error Please add support for your architecture in build/build_config.h 121#endif 122 123// Type detection for wchar_t. 124#if defined(OS_WIN) 125#define WCHAR_T_IS_UTF16 126#elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 127 defined(__WCHAR_MAX__) && \ 128 (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) 129#define WCHAR_T_IS_UTF32 130#elif defined(OS_POSIX) && defined(COMPILER_GCC) && \ 131 defined(__WCHAR_MAX__) && \ 132 (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff) 133// On Posix, we'll detect short wchar_t, but projects aren't guaranteed to 134// compile in this mode (in particular, Chrome doesn't). This is intended for 135// other projects using base who manage their own dependencies and make sure 136// short wchar works for them. 137#define WCHAR_T_IS_UTF16 138#else 139#error Please add support for your compiler in build/build_config.h 140#endif 141 142#if defined(__ARMEL__) && !defined(OS_IOS) 143#define WCHAR_T_IS_UNSIGNED 1 144#elif defined(__MIPSEL__) 145#define WCHAR_T_IS_UNSIGNED 0 146#endif 147 148#if defined(OS_ANDROID) 149// The compiler thinks std::string::const_iterator and "const char*" are 150// equivalent types. 151#define STD_STRING_ITERATOR_IS_CHAR_POINTER 152// The compiler thinks base::string16::const_iterator and "char16*" are 153// equivalent types. 154#define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER 155#endif 156 157#endif // BUILD_BUILD_CONFIG_H_ 158