michael@0: // Copyright (c) 2012 The Chromium Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: 
michael@0: // This file adds defines about the platform we're currently building on.
michael@0: //  Operating System:
michael@0: //    OS_WIN / OS_MACOSX / OS_LINUX / OS_POSIX (MACOSX or LINUX)
michael@0: //  Compiler:
michael@0: //    COMPILER_MSVC / COMPILER_GCC
michael@0: //  Processor:
michael@0: //    ARCH_CPU_X86 / ARCH_CPU_X86_64 / ARCH_CPU_X86_FAMILY (X86 or X86_64)
michael@0: //    ARCH_CPU_32_BITS / ARCH_CPU_64_BITS
michael@0: 
michael@0: #ifndef BUILD_BUILD_CONFIG_H_
michael@0: #define BUILD_BUILD_CONFIG_H_
michael@0: 
michael@0: #if defined(__APPLE__)
michael@0: #include <TargetConditionals.h>
michael@0: #endif
michael@0: 
michael@0: // A set of macros to use for platform detection.
michael@0: #if defined(ANDROID)
michael@0: #define OS_ANDROID 1
michael@0: #elif defined(__APPLE__)
michael@0: #define OS_MACOSX 1
michael@0: #if defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
michael@0: #define OS_IOS 1
michael@0: #endif  // defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE
michael@0: #elif defined(__native_client__)
michael@0: #define OS_NACL 1
michael@0: #elif defined(__linux__)
michael@0: #define OS_LINUX 1
michael@0: // Use TOOLKIT_GTK on linux if TOOLKIT_VIEWS isn't defined.
michael@0: #if !defined(TOOLKIT_VIEWS) && defined(USE_X11)
michael@0: #define TOOLKIT_GTK
michael@0: #endif
michael@0: #if defined(__GLIBC__) && !defined(__UCLIBC__)
michael@0: // we really are using glibc, not uClibc pretending to be glibc
michael@0: #define LIBC_GLIBC
michael@0: #endif
michael@0: #elif defined(_WIN32)
michael@0: #define OS_WIN 1
michael@0: #define TOOLKIT_VIEWS 1
michael@0: #elif defined(__FreeBSD__)
michael@0: #define OS_FREEBSD 1
michael@0: #define TOOLKIT_GTK
michael@0: #elif defined(__OpenBSD__)
michael@0: #define OS_OPENBSD 1
michael@0: #define TOOLKIT_GTK
michael@0: #elif defined(__sun)
michael@0: #define OS_SOLARIS 1
michael@0: #define TOOLKIT_GTK
michael@0: #else
michael@0: #error Please add support for your platform in build/build_config.h
michael@0: #endif
michael@0: 
michael@0: #if defined(USE_OPENSSL) && defined(USE_NSS)
michael@0: #error Cannot use both OpenSSL and NSS
michael@0: #endif
michael@0: 
michael@0: // For access to standard BSD features, use OS_BSD instead of a
michael@0: // more specific macro.
michael@0: #if defined(OS_FREEBSD) || defined(OS_OPENBSD)
michael@0: #define OS_BSD 1
michael@0: #endif
michael@0: 
michael@0: // For access to standard POSIXish features, use OS_POSIX instead of a
michael@0: // more specific macro.
michael@0: #if defined(OS_MACOSX) || defined(OS_LINUX) || defined(OS_FREEBSD) ||     \
michael@0:     defined(OS_OPENBSD) || defined(OS_SOLARIS) || defined(OS_ANDROID) ||  \
michael@0:     defined(OS_NACL)
michael@0: #define OS_POSIX 1
michael@0: #endif
michael@0: 
michael@0: // Use tcmalloc
michael@0: #if (defined(OS_WIN) || defined(OS_LINUX) || defined(OS_ANDROID)) && \
michael@0:     !defined(NO_TCMALLOC)
michael@0: #define USE_TCMALLOC 1
michael@0: #endif
michael@0: 
michael@0: // Compiler detection.
michael@0: #if defined(__GNUC__)
michael@0: #define COMPILER_GCC 1
michael@0: #elif defined(_MSC_VER)
michael@0: #define COMPILER_MSVC 1
michael@0: #else
michael@0: #error Please add support for your compiler in build/build_config.h
michael@0: #endif
michael@0: 
michael@0: // Processor architecture detection.  For more info on what's defined, see:
michael@0: //   http://msdn.microsoft.com/en-us/library/b0084kay.aspx
michael@0: //   http://www.agner.org/optimize/calling_conventions.pdf
michael@0: //   or with gcc, run: "echo | gcc -E -dM -"
michael@0: #if defined(_M_X64) || defined(__x86_64__)
michael@0: #define ARCH_CPU_X86_FAMILY 1
michael@0: #define ARCH_CPU_X86_64 1
michael@0: #define ARCH_CPU_64_BITS 1
michael@0: #define ARCH_CPU_LITTLE_ENDIAN 1
michael@0: #elif defined(_M_IX86) || defined(__i386__)
michael@0: #define ARCH_CPU_X86_FAMILY 1
michael@0: #define ARCH_CPU_X86 1
michael@0: #define ARCH_CPU_32_BITS 1
michael@0: #define ARCH_CPU_LITTLE_ENDIAN 1
michael@0: #elif defined(__ARMEL__)
michael@0: #define ARCH_CPU_ARM_FAMILY 1
michael@0: #define ARCH_CPU_ARMEL 1
michael@0: #define ARCH_CPU_32_BITS 1
michael@0: #define ARCH_CPU_LITTLE_ENDIAN 1
michael@0: #elif defined(__pnacl__)
michael@0: #define ARCH_CPU_32_BITS 1
michael@0: #elif defined(__MIPSEL__)
michael@0: #define ARCH_CPU_MIPS_FAMILY 1
michael@0: #define ARCH_CPU_MIPSEL 1
michael@0: #define ARCH_CPU_32_BITS 1
michael@0: #define ARCH_CPU_LITTLE_ENDIAN 1
michael@0: #else
michael@0: #error Please add support for your architecture in build/build_config.h
michael@0: #endif
michael@0: 
michael@0: // Type detection for wchar_t.
michael@0: #if defined(OS_WIN)
michael@0: #define WCHAR_T_IS_UTF16
michael@0: #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \
michael@0:     defined(__WCHAR_MAX__) && \
michael@0:     (__WCHAR_MAX__ == 0x7fffffff || __WCHAR_MAX__ == 0xffffffff)
michael@0: #define WCHAR_T_IS_UTF32
michael@0: #elif defined(OS_POSIX) && defined(COMPILER_GCC) && \
michael@0:     defined(__WCHAR_MAX__) && \
michael@0:     (__WCHAR_MAX__ == 0x7fff || __WCHAR_MAX__ == 0xffff)
michael@0: // On Posix, we'll detect short wchar_t, but projects aren't guaranteed to
michael@0: // compile in this mode (in particular, Chrome doesn't). This is intended for
michael@0: // other projects using base who manage their own dependencies and make sure
michael@0: // short wchar works for them.
michael@0: #define WCHAR_T_IS_UTF16
michael@0: #else
michael@0: #error Please add support for your compiler in build/build_config.h
michael@0: #endif
michael@0: 
michael@0: #if defined(__ARMEL__) && !defined(OS_IOS)
michael@0: #define WCHAR_T_IS_UNSIGNED 1
michael@0: #elif defined(__MIPSEL__)
michael@0: #define WCHAR_T_IS_UNSIGNED 0
michael@0: #endif
michael@0: 
michael@0: #if defined(OS_ANDROID)
michael@0: // The compiler thinks std::string::const_iterator and "const char*" are
michael@0: // equivalent types.
michael@0: #define STD_STRING_ITERATOR_IS_CHAR_POINTER
michael@0: // The compiler thinks base::string16::const_iterator and "char16*" are
michael@0: // equivalent types.
michael@0: #define BASE_STRING16_ITERATOR_IS_CHAR16_POINTER
michael@0: #endif
michael@0: 
michael@0: #endif  // BUILD_BUILD_CONFIG_H_