155 lines
4.6 KiB
C++
155 lines
4.6 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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// 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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#if defined(__APPLE__)
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#include <TargetConditionals.h>
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#endif
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// A set of macros to use for platform detection.
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#if defined(ANDROID)
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#define OS_ANDROID 1
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#elif defined(__APPLE__)
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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(__native_client__)
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#define OS_NACL 1
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#elif defined(__linux__)
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#define OS_LINUX 1
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// Use TOOLKIT_GTK on linux if TOOLKIT_VIEWS isn't defined.
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#if !defined(TOOLKIT_VIEWS) && defined(USE_X11)
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#define TOOLKIT_GTK
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#endif
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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
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#endif
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#elif defined(_WIN32)
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#define OS_WIN 1
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#define TOOLKIT_VIEWS 1
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#elif defined(__FreeBSD__)
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#define OS_FREEBSD 1
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#define TOOLKIT_GTK
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#elif defined(__OpenBSD__)
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#define OS_OPENBSD 1
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#define TOOLKIT_GTK
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#elif defined(__sun)
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#define OS_SOLARIS 1
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#define TOOLKIT_GTK
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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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#if defined(USE_OPENSSL) && defined(USE_NSS)
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#error Cannot use both OpenSSL and NSS
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#endif
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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_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_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) || \
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defined(OS_OPENBSD) || defined(OS_SOLARIS) || defined(OS_ANDROID) || \
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defined(OS_NACL)
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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(__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(__pnacl__)
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#define ARCH_CPU_32_BITS 1
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#elif defined(__MIPSEL__)
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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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#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_POSIX) && defined(COMPILER_GCC) && \
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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) && \
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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(__ARMEL__) && !defined(OS_IOS)
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#define WCHAR_T_IS_UNSIGNED 1
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#elif defined(__MIPSEL__)
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#define WCHAR_T_IS_UNSIGNED 0
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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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