122 lines
3.8 KiB
Plaintext
122 lines
3.8 KiB
Plaintext
/*
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*
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* Copyright (c) 2009 Helge Bahmann
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* Copyright (c) 2014 Andrey Semashev
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*/
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/*!
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* \file atomic/detail/platform.hpp
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*
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* This header defines macros for the target platform detection
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*/
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#ifndef BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_
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#define BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_
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#include <boost/atomic/detail/config.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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#if !defined(BOOST_ATOMIC_FORCE_FALLBACK)
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// Compiler-based backends
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#if (defined(__ibmxl__) || defined(__IBMCPP__)) && defined(__PPC__)
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// IBM XL C++ Compiler has to be checked before GCC/Clang as it pretends to be one but does not support __atomic* intrinsics.
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// It does support GCC inline assembler though.
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#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_ppc
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#elif ((defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 407)) ||\
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(defined(BOOST_CLANG) && ((__clang_major__ * 100 + __clang_minor__) >= 302))) &&\
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(\
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(__GCC_ATOMIC_BOOL_LOCK_FREE + 0) == 2 ||\
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(__GCC_ATOMIC_CHAR_LOCK_FREE + 0) == 2 ||\
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(__GCC_ATOMIC_SHORT_LOCK_FREE + 0) == 2 ||\
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(__GCC_ATOMIC_INT_LOCK_FREE + 0) == 2 ||\
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(__GCC_ATOMIC_LONG_LOCK_FREE + 0) == 2 ||\
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(__GCC_ATOMIC_LLONG_LOCK_FREE + 0) == 2\
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)
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#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_atomic
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#elif (defined(__GNUC__) || defined(__SUNPRO_CC)) && (defined(__i386__) || defined(__x86_64__))
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#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_x86
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#elif defined(__GNUC__) && (defined(__POWERPC__) || defined(__PPC__))
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#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_ppc
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// This list of ARM architecture versions comes from Apple's arm/arch.h header.
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// I don't know how complete it is.
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#elif defined(__GNUC__) &&\
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(\
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defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) ||\
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defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) ||\
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defined(__ARM_ARCH_6ZK__) ||\
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defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) ||\
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defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) ||\
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defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7S__)\
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)
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#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_arm
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#elif (defined(__GNUC__) || defined(__SUNPRO_CC)) && (defined(__sparcv8plus) || defined(__sparc_v9__))
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#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_sparc
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#elif defined(__GNUC__) && defined(__alpha__)
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#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_alpha
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#elif defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 401) &&\
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(\
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defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1) ||\
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defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2) ||\
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defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) ||\
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defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) ||\
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defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16)\
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)
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#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_sync
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#elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))
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#define BOOST_ATOMIC_DETAIL_PLATFORM msvc_x86
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#elif defined(_MSC_VER) && _MSC_VER >= 1700 && defined(_M_ARM)
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#define BOOST_ATOMIC_DETAIL_PLATFORM msvc_arm
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#endif
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// OS-based backends
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#if !defined(BOOST_ATOMIC_DETAIL_PLATFORM)
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#if defined(__linux__) && defined(__arm__)
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#define BOOST_ATOMIC_DETAIL_PLATFORM linux_arm
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#elif defined(BOOST_WINDOWS) || defined(_WIN32_CE)
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#define BOOST_ATOMIC_DETAIL_PLATFORM windows
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#endif
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#endif // !defined(BOOST_ATOMIC_DETAIL_PLATFORM)
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#endif // !defined(BOOST_ATOMIC_FORCE_FALLBACK)
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#if !defined(BOOST_ATOMIC_DETAIL_PLATFORM)
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#define BOOST_ATOMIC_DETAIL_PLATFORM emulated
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#define BOOST_ATOMIC_EMULATED
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#endif
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#define BOOST_ATOMIC_DETAIL_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_PLATFORM).hpp>
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#endif // BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_
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