// Copyright (c) 2012 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. // This file adds defines about the platform we're currently building on. // Operating System: // OS_WIN / OS_MACOSX / OS_LINUX / OS_POSIX (MACOSX or LINUX) / // OS_NACL (NACL_SFI or NACL_NONSFI) / OS_NACL_SFI / OS_NACL_NONSFI // OS_CHROMEOS is set by the build system // Compiler: // COMPILER_MSVC / COMPILER_GCC // Processor: // ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_X86_FAMILY (X86 or X86_64) // ARCH_CPU_32_BITS / ARCH_CPU_64_BITS #ifndef BUILD_BUILD_CONFIG_H_ #define BUILD_BUILD_CONFIG_H_ // A set of macros to use for platform detection. #if defined(__native_client__) // __native_client__ must be first, so that other OS_ defines are not set. #define OS_NACL 1 // OS_NACL comes in two sandboxing technology flavors, SFI or Non-SFI. // PNaCl toolchain defines __native_client_nonsfi__ macro in Non-SFI build // mode, while it does not in SFI build mode. #if defined(__native_client_nonsfi__) #define OS_NACL_NONSFI #else #define OS_NACL_SFI #endif #elif defined(ANDROID) #define OS_ANDROID 1 #elif defined(__APPLE__) // only include TargetConditions after testing ANDROID as some android builds // on mac don't have this header available and it's not needed unless the target // is really mac/ios. #include #define OS_MACOSX 1 #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE #define OS_IOS 1 #endif // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE #elif defined(__linux__) #define OS_LINUX 1 // include a system header to pull in features.h for glibc/uclibc macros. #include #if defined(__GLIBC__) && !defined(__UCLIBC__) // we really are using glibc, not uClibc pretending to be glibc #define LIBC_GLIBC 1 #endif #elif defined(_WIN32) #define OS_WIN 1 #elif defined(__Fuchsia__) #define OS_FUCHSIA 1 #elif defined(__FreeBSD__) #define OS_FREEBSD 1 #elif defined(__NetBSD__) #define OS_NETBSD 1 #elif defined(__OpenBSD__) #define OS_OPENBSD 1 #elif defined(__sun) #define OS_SOLARIS 1 #elif defined(__QNXNTO__) #define OS_QNX 1 #elif defined(_AIX) #define OS_AIX 1 #else #error Please add support for your platform in build/build_config.h #endif // NOTE: Adding a new port? Please follow // https://chromium.googlesource.com/chromium/src/+/master/docs/new_port_policy.md // For access to standard BSD features, use OS_BSD instead of a // more specific macro. #if defined(OS_FREEBSD) || defined(OS_NETBSD) || defined(OS_OPENBSD) #define OS_BSD 1 #endif // For access to standard POSIXish features, use OS_POSIX instead of a // more specific macro. #if defined(OS_AIX) || defined(OS_ANDROID) || defined(OS_FREEBSD) || \ defined(OS_FUCHSIA) || defined(OS_LINUX) || defined(OS_MACOSX) || \ defined(OS_NACL) || defined(OS_NETBSD) || defined(OS_OPENBSD) || \ defined(OS_QNX) || defined(OS_SOLARIS) #define OS_POSIX 1 #endif // Use tcmalloc #if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \ !defined(NO_TCMALLOC) #define USE_TCMALLOC 1 #endif // Compiler detection. #if defined(__GNUC__) #define COMPILER_GCC 1 #elif defined(_MSC_VER) #define COMPILER_MSVC 1 #else #error Please add support for your compiler in build/build_config.h #endif // Processor architecture detection. For more info on what's defined, see: // http://msdn.microsoft.com/en-us/library/b0084kay.aspx // http://www.agner.org/optimize/calling_conventions.pdf // or with gcc, run: "echo | gcc -E -dM -" #if defined(_M_X64) || defined(__x86_64__) #define ARCH_CPU_X86_FAMILY 1 #define ARCH_CPU_X86_64 1 #define ARCH_CPU_64_BITS 1 #define ARCH_CPU_LITTLE_ENDIAN 1 #elif defined(_M_IX86) || defined(__i386__) #define ARCH_CPU_X86_FAMILY 1 #define ARCH_CPU_X86 1 #define ARCH_CPU_32_BITS 1 #define ARCH_CPU_LITTLE_ENDIAN 1 #elif defined(__s390x__) #define ARCH_CPU_S390_FAMILY 1 #define ARCH_CPU_S390X 1 #define ARCH_CPU_64_BITS 1 #define ARCH_CPU_BIG_ENDIAN 1 #elif defined(__s390__) #define ARCH_CPU_S390_FAMILY 1 #define ARCH_CPU_S390 1 #define ARCH_CPU_31_BITS 1 #define ARCH_CPU_BIG_ENDIAN 1 #elif (defined(__PPC64__) || defined(__PPC__)) && defined(__BIG_ENDIAN__) #define ARCH_CPU_PPC64_FAMILY 1 #define ARCH_CPU_PPC64 1 #define ARCH_CPU_64_BITS 1 #define ARCH_CPU_BIG_ENDIAN 1 #elif defined(__PPC64__) #define ARCH_CPU_PPC64_FAMILY 1 #define ARCH_CPU_PPC64 1 #define ARCH_CPU_64_BITS 1 #define ARCH_CPU_LITTLE_ENDIAN 1 #elif defined(__ARMEL__) #define ARCH_CPU_ARM_FAMILY 1 #define ARCH_CPU_ARMEL 1 #define ARCH_CPU_32_BITS 1 #define ARCH_CPU_LITTLE_ENDIAN 1 #elif defined(__aarch64__) #define ARCH_CPU_ARM_FAMILY 1 #define ARCH_CPU_ARM64 1 #define ARCH_CPU_64_BITS 1 #define ARCH_CPU_LITTLE_ENDIAN 1 #elif defined(__pnacl__) #define ARCH_CPU_32_BITS 1 #define ARCH_CPU_LITTLE_ENDIAN 1 #elif defined(__MIPSEL__) #if defined(__LP64__) #define ARCH_CPU_MIPS_FAMILY 1 #define ARCH_CPU_MIPS64EL 1 #define ARCH_CPU_64_BITS 1 #define ARCH_CPU_LITTLE_ENDIAN 1 #else #define ARCH_CPU_MIPS_FAMILY 1 #define ARCH_CPU_MIPSEL 1 #define ARCH_CPU_32_BITS 1 #define ARCH_CPU_LITTLE_ENDIAN 1 #endif #elif defined(__MIPSEB__) #if defined(__LP64__) #define ARCH_CPU_MIPS_FAMILY 1 #define ARCH_CPU_MIPS64 1 #define ARCH_CPU_64_BITS 1 #define ARCH_CPU_BIG_ENDIAN 1 #else #define ARCH_CPU_MIPS_FAMILY 1 #define ARCH_CPU_MIPS 1 #define ARCH_CPU_32_BITS 1 #define ARCH_CPU_BIG_ENDIAN 1 #endif #else #error Please add support for your architecture in build/build_config.h #endif // Type detection for wchar_t. #if defined(OS_WIN) #define WCHAR_T_IS_UTF16 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \ (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff) #define WCHAR_T_IS_UTF32 #elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \ (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff) // On Posix, we'll detect short wchar_t, but projects aren't guaranteed to // compile in this mode (in particular, Chrome doesn't). This is intended for // other projects using base who manage their own dependencies and make sure // short wchar works for them. #define WCHAR_T_IS_UTF16 #else #error Please add support for your compiler in build/build_config.h #endif #if defined(OS_ANDROID) // The compiler thinks std::string::const_iterator and "const char*" are // equivalent types. #define STD_STRING_ITERATOR_IS_CHAR_POINTER // The compiler thinks base::string16::const_iterator and "char16*" are // equivalent types. #define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER #endif #endif // BUILD_BUILD_CONFIG_H_