208 строки
6.6 KiB
C++
208 строки
6.6 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// This file adds defines about the platform we're currently building on.
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// Operating System:
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// OS_WIN / OS_MACOSX / OS_LINUX / OS_POSIX (MACOSX or LINUX) /
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// OS_NACL (NACL_SFI or NACL_NONSFI) / OS_NACL_SFI / OS_NACL_NONSFI
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// OS_CHROMEOS is set by the build system
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// Compiler:
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// COMPILER_MSVC / COMPILER_GCC
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// Processor:
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// ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_X86_FAMILY (X86 or X86_64)
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// ARCH_CPU_32_BITS / ARCH_CPU_64_BITS
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#ifndef BUILD_BUILD_CONFIG_H_
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#define BUILD_BUILD_CONFIG_H_
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// A set of macros to use for platform detection.
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#if defined(__native_client__)
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// __native_client__ must be first, so that other OS_ defines are not set.
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#define OS_NACL 1
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// OS_NACL comes in two sandboxing technology flavors, SFI or Non-SFI.
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// PNaCl toolchain defines __native_client_nonsfi__ macro in Non-SFI build
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// mode, while it does not in SFI build mode.
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#if defined(__native_client_nonsfi__)
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#define OS_NACL_NONSFI
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#else
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#define OS_NACL_SFI
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#endif
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#elif defined(ANDROID)
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#define OS_ANDROID 1
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#elif defined(__APPLE__)
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// only include TargetConditions after testing ANDROID as some android builds
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// on mac don't have this header available and it's not needed unless the target
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// is really mac/ios.
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#include <TargetConditionals.h>
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#define OS_MACOSX 1
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#if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
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#define OS_IOS 1
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#endif // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
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#elif defined(__linux__)
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#define OS_LINUX 1
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// include a system header to pull in features.h for glibc/uclibc macros.
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#include <unistd.h>
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#if defined(__GLIBC__) && !defined(__UCLIBC__)
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// we really are using glibc, not uClibc pretending to be glibc
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#define LIBC_GLIBC 1
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#endif
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#elif defined(_WIN32)
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#define OS_WIN 1
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#elif defined(__Fuchsia__)
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#define OS_FUCHSIA 1
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#elif defined(__FreeBSD__)
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#define OS_FREEBSD 1
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#elif defined(__NetBSD__)
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#define OS_NETBSD 1
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#elif defined(__OpenBSD__)
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#define OS_OPENBSD 1
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#elif defined(__sun)
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#define OS_SOLARIS 1
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#elif defined(__QNXNTO__)
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#define OS_QNX 1
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#elif defined(_AIX)
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#define OS_AIX 1
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#elif defined(__asmjs__)
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#define OS_ASMJS
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#else
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#error Please add support for your platform in build/build_config.h
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#endif
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// NOTE: Adding a new port? Please follow
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// https://chromium.googlesource.com/chromium/src/+/master/docs/new_port_policy.md
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// For access to standard BSD features, use OS_BSD instead of a
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// more specific macro.
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#if defined(OS_FREEBSD) || defined(OS_NETBSD) || defined(OS_OPENBSD)
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#define OS_BSD 1
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#endif
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// For access to standard POSIXish features, use OS_POSIX instead of a
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// more specific macro.
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#if defined(OS_AIX) || defined(OS_ANDROID) || defined(OS_ASMJS) || \
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defined(OS_FREEBSD) || defined(OS_LINUX) || defined(OS_MACOSX) || \
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defined(OS_NACL) || defined(OS_NETBSD) || defined(OS_OPENBSD) || \
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defined(OS_QNX) || defined(OS_SOLARIS)
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#define OS_POSIX 1
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#endif
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// Use tcmalloc
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#if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \
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!defined(NO_TCMALLOC)
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#define USE_TCMALLOC 1
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#endif
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// Compiler detection.
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#if defined(__GNUC__)
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#define COMPILER_GCC 1
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#elif defined(_MSC_VER)
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#define COMPILER_MSVC 1
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#else
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#error Please add support for your compiler in build/build_config.h
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#endif
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// Processor architecture detection. For more info on what's defined, see:
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// http://msdn.microsoft.com/en-us/library/b0084kay.aspx
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// http://www.agner.org/optimize/calling_conventions.pdf
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// or with gcc, run: "echo | gcc -E -dM -"
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#if defined(_M_X64) || defined(__x86_64__)
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#define ARCH_CPU_X86_FAMILY 1
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#define ARCH_CPU_X86_64 1
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#define ARCH_CPU_64_BITS 1
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#define ARCH_CPU_LITTLE_ENDIAN 1
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#elif defined(_M_IX86) || defined(__i386__)
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#define ARCH_CPU_X86_FAMILY 1
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#define ARCH_CPU_X86 1
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#define ARCH_CPU_32_BITS 1
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#define ARCH_CPU_LITTLE_ENDIAN 1
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#elif defined(__s390x__)
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#define ARCH_CPU_S390_FAMILY 1
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#define ARCH_CPU_S390X 1
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#define ARCH_CPU_64_BITS 1
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#define ARCH_CPU_BIG_ENDIAN 1
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#elif defined(__s390__)
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#define ARCH_CPU_S390_FAMILY 1
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#define ARCH_CPU_S390 1
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#define ARCH_CPU_31_BITS 1
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#define ARCH_CPU_BIG_ENDIAN 1
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#elif (defined(__PPC64__) || defined(__PPC__)) && defined(__BIG_ENDIAN__)
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#define ARCH_CPU_PPC64_FAMILY 1
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#define ARCH_CPU_PPC64 1
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#define ARCH_CPU_64_BITS 1
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#define ARCH_CPU_BIG_ENDIAN 1
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#elif defined(__PPC64__)
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#define ARCH_CPU_PPC64_FAMILY 1
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#define ARCH_CPU_PPC64 1
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#define ARCH_CPU_64_BITS 1
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#define ARCH_CPU_LITTLE_ENDIAN 1
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#elif defined(__ARMEL__)
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#define ARCH_CPU_ARM_FAMILY 1
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#define ARCH_CPU_ARMEL 1
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#define ARCH_CPU_32_BITS 1
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#define ARCH_CPU_LITTLE_ENDIAN 1
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#elif defined(__aarch64__) || defined(_M_ARM64)
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#define ARCH_CPU_ARM_FAMILY 1
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#define ARCH_CPU_ARM64 1
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#define ARCH_CPU_64_BITS 1
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#define ARCH_CPU_LITTLE_ENDIAN 1
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#elif defined(__pnacl__) || defined(__asmjs__)
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#define ARCH_CPU_32_BITS 1
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#define ARCH_CPU_LITTLE_ENDIAN 1
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#elif defined(__MIPSEL__)
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#if defined(__LP64__)
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#define ARCH_CPU_MIPS_FAMILY 1
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#define ARCH_CPU_MIPS64EL 1
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#define ARCH_CPU_64_BITS 1
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#define ARCH_CPU_LITTLE_ENDIAN 1
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#else
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#define ARCH_CPU_MIPS_FAMILY 1
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#define ARCH_CPU_MIPSEL 1
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#define ARCH_CPU_32_BITS 1
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#define ARCH_CPU_LITTLE_ENDIAN 1
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#endif
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#elif defined(__MIPSEB__)
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#if defined(__LP64__)
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#define ARCH_CPU_MIPS_FAMILY 1
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#define ARCH_CPU_MIPS64 1
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#define ARCH_CPU_64_BITS 1
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#define ARCH_CPU_BIG_ENDIAN 1
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#else
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#define ARCH_CPU_MIPS_FAMILY 1
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#define ARCH_CPU_MIPS 1
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#define ARCH_CPU_32_BITS 1
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#define ARCH_CPU_BIG_ENDIAN 1
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#endif
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#else
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#error Please add support for your architecture in build/build_config.h
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#endif
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// Type detection for wchar_t.
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#if defined(OS_WIN)
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#define WCHAR_T_IS_UTF16
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#elif defined(OS_FUCHSIA)
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#define WCHAR_T_IS_UTF32
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#elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \
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(__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff)
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#define WCHAR_T_IS_UTF32
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#elif defined(OS_POSIX) && defined(COMPILER_GCC) && defined(__WCHAR_MAX__) && \
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(__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff)
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// On Posix, we'll detect short wchar_t, but projects aren't guaranteed to
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// compile in this mode (in particular, Chrome doesn't). This is intended for
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// other projects using base who manage their own dependencies and make sure
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// short wchar works for them.
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#define WCHAR_T_IS_UTF16
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#else
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#error Please add support for your compiler in build/build_config.h
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#endif
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#if defined(OS_ANDROID)
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// The compiler thinks std::string::const_iterator and "const char*" are
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// equivalent types.
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#define STD_STRING_ITERATOR_IS_CHAR_POINTER
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// The compiler thinks base::string16::const_iterator and "char16*" are
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// equivalent types.
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#define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER
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#endif
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#endif // BUILD_BUILD_CONFIG_H_
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