third_party/boost/atomic/include/boost/atomic/detail/platform.hpp - platform/external/sdv/vsomeip - Git at Google

 /*
  * Distributed under the Boost Software License, Version 1.0.
  * (See accompanying file LICENSE_1_0.txt or copy at
  * http://www.boost.org/LICENSE_1_0.txt)
  *
  * Copyright (c) 2009 Helge Bahmann
  * Copyright (c) 2014-2018, 2020 Andrey Semashev
  */
 /*!
  * \file   atomic/detail/platform.hpp
  *
  * This header defines macros for the target platform detection
  */

 #ifndef BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_
 #define BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_

 #include <boost/atomic/detail/config.hpp>

 #ifdef BOOST_HAS_PRAGMA_ONCE
 #pragma once
 #endif

 #if defined(__GNUC__) && defined(__arm__)

 // Newer gcc versions define __ARM_ARCH. Older ones don't, so we have to deduce ARM arch version from a bunch of version-specific macros.
 #if defined(__ARM_ARCH)
 #define BOOST_ATOMIC_DETAIL_ARM_ARCH __ARM_ARCH
 #elif defined(__ARM_ARCH_8A__)
 #define BOOST_ATOMIC_DETAIL_ARM_ARCH 8
 #elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) ||\
     defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) ||\
     defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7S__)
 #define BOOST_ATOMIC_DETAIL_ARM_ARCH 7
 #elif defined(__ARM_ARCH_6__)  || defined(__ARM_ARCH_6J__) ||\
     defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) ||\
     defined(__ARM_ARCH_6ZK__)
 #define BOOST_ATOMIC_DETAIL_ARM_ARCH 6
 #else
 // We are not interested in older versions - they don't support atomic ops
 #define BOOST_ATOMIC_DETAIL_ARM_ARCH 0
 #endif

 #endif // defined(__GNUC__) && defined(__arm__)

 #if !defined(BOOST_ATOMIC_FORCE_FALLBACK)

 // Determine the target platform.
 // The target platform describes the compiler and target architecture. It can be used by more generic backends, such as the ones
 // based on compiler intrinsics, to implement specialized operations in a non-generic way.

 #if defined(__GNUC__) && (defined(__i386__) || defined(__x86_64__))

 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_x86
 #define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_x86

 #elif defined(__GNUC__) && defined(__aarch64__)

 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_aarch64
 #define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_aarch64

 #elif defined(__GNUC__) && defined(__arm__) && (BOOST_ATOMIC_DETAIL_ARM_ARCH >= 6)

 #if (BOOST_ATOMIC_DETAIL_ARM_ARCH >= 8)
 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_aarch32
 #define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_aarch32
 #else
 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_arm
 #define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_arm
 #endif

 #elif defined(__GNUC__) && (defined(__POWERPC__) || defined(__PPC__))

 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_ppc
 #define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_ppc

 #elif (defined(__GNUC__) || defined(__SUNPRO_CC)) && (defined(__sparcv8plus) || defined(__sparc_v9__))

 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_sparc

 #elif defined(__GNUC__) && defined(__alpha__)

 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_alpha

 #elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))

 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND msvc_x86

 #elif defined(_MSC_VER) && _MSC_VER >= 1700 && (defined(_M_ARM) || defined(_M_ARM64))

 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND msvc_arm

 #endif

 // Compiler-based backends

 // IBM XL C++ Compiler has to be checked before GCC/Clang as it pretends to be one but does not support __atomic* intrinsics.
 // It does support GCC inline assembler though.
 #if !(defined(__ibmxl__) || defined(__IBMCPP__)) &&\
     ((defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 407)) ||\
         (defined(BOOST_CLANG) && ((__clang_major__ * 100 + __clang_minor__) >= 302))) &&\
     (\
         (__GCC_ATOMIC_BOOL_LOCK_FREE + 0) == 2 ||\
         (__GCC_ATOMIC_CHAR_LOCK_FREE + 0) == 2 ||\
         (__GCC_ATOMIC_SHORT_LOCK_FREE + 0) == 2 ||\
         (__GCC_ATOMIC_INT_LOCK_FREE + 0) == 2 ||\
         (__GCC_ATOMIC_LONG_LOCK_FREE + 0) == 2 ||\
         (__GCC_ATOMIC_LLONG_LOCK_FREE + 0) == 2\
     )

 #define BOOST_ATOMIC_DETAIL_CORE_BACKEND gcc_atomic

 // GCC __sync* instrinsics backend is less efficient than asm-based backends, so use it only when nothing better is available.
 #elif !defined(BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND) &&\
     defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 401) &&\
     (\
         defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1) ||\
         defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2) ||\
         defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) ||\
         defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) ||\
         defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16)\
     )

 #define BOOST_ATOMIC_DETAIL_CORE_BACKEND gcc_sync

 #endif

 // OS-based backends

 #if !defined(BOOST_ATOMIC_DETAIL_CORE_BACKEND) && !defined(BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND)

 #if defined(__linux__) && defined(__arm__)

 #define BOOST_ATOMIC_DETAIL_CORE_BACKEND linux_arm

 #elif defined(BOOST_WINDOWS) || defined(_WIN32_CE)

 #define BOOST_ATOMIC_DETAIL_CORE_BACKEND windows

 #endif

 #endif // !defined(BOOST_ATOMIC_DETAIL_CORE_BACKEND)

 // Waiting and notifying operations backends
 #if defined(BOOST_WINDOWS)

 #define BOOST_ATOMIC_DETAIL_WAIT_BACKEND windows

 #else // defined(BOOST_WINDOWS)

 #include <boost/atomic/detail/futex.hpp>

 #if defined(BOOST_ATOMIC_DETAIL_HAS_FUTEX)
 #define BOOST_ATOMIC_DETAIL_WAIT_BACKEND futex
 #elif defined(__FreeBSD__)
 #include <sys/param.h>
 // FreeBSD prior to 7.0 had _umtx_op with a different signature
 #if defined(__FreeBSD_version) && __FreeBSD_version >= 700000
 #define BOOST_ATOMIC_DETAIL_WAIT_BACKEND freebsd_umtx
 #endif // defined(__FreeBSD_version) && __FreeBSD_version >= 700000
 #elif defined(__DragonFly__)
 #define BOOST_ATOMIC_DETAIL_WAIT_BACKEND dragonfly_umtx
 #endif

 #endif // defined(BOOST_WINDOWS)

 #endif // !defined(BOOST_ATOMIC_FORCE_FALLBACK)

 #if !defined(BOOST_ATOMIC_DETAIL_FP_BACKEND)
 #define BOOST_ATOMIC_DETAIL_FP_BACKEND generic
 #define BOOST_ATOMIC_DETAIL_FP_BACKEND_GENERIC
 #endif

 #if !defined(BOOST_ATOMIC_DETAIL_EXTRA_BACKEND)
 #define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND generic
 #define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND_GENERIC
 #endif

 #if !defined(BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND)
 #define BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND generic
 #define BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND_GENERIC
 #endif

 #if !defined(BOOST_ATOMIC_DETAIL_WAIT_BACKEND)
 #define BOOST_ATOMIC_DETAIL_WAIT_BACKEND generic
 #define BOOST_ATOMIC_DETAIL_WAIT_BACKEND_GENERIC
 #endif

 #if defined(BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND)
 #define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND).hpp>
 #endif
 #if defined(BOOST_ATOMIC_DETAIL_CORE_BACKEND)
 #define BOOST_ATOMIC_DETAIL_CORE_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_CORE_BACKEND).hpp>
 #endif
 #define BOOST_ATOMIC_DETAIL_FP_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_FP_BACKEND).hpp>
 #define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_EXTRA_BACKEND).hpp>
 #define BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND).hpp>
 #define BOOST_ATOMIC_DETAIL_WAIT_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_WAIT_BACKEND).hpp>

 #endif // BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_
	/*
	* Distributed under the Boost Software License, Version 1.0.
	* (See accompanying file LICENSE_1_0.txt or copy at
	* http://www.boost.org/LICENSE_1_0.txt)
	*
	* Copyright (c) 2009 Helge Bahmann
	* Copyright (c) 2014-2018, 2020 Andrey Semashev
	*/
	/*!
	* \file atomic/detail/platform.hpp
	*
	* This header defines macros for the target platform detection
	*/

	#ifndef BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_
	#define BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_

	#include <boost/atomic/detail/config.hpp>

	#ifdef BOOST_HAS_PRAGMA_ONCE
	#pragma once
	#endif

	#if defined(__GNUC__) && defined(__arm__)

	// Newer gcc versions define __ARM_ARCH. Older ones don't, so we have to deduce ARM arch version from a bunch of version-specific macros.
	#if defined(__ARM_ARCH)
	#define BOOST_ATOMIC_DETAIL_ARM_ARCH __ARM_ARCH
	#elif defined(__ARM_ARCH_8A__)
	#define BOOST_ATOMIC_DETAIL_ARM_ARCH 8
	#elif defined(__ARM_ARCH_7__) \|\| defined(__ARM_ARCH_7A__) \|\|\
	defined(__ARM_ARCH_7R__) \|\| defined(__ARM_ARCH_7M__) \|\|\
	defined(__ARM_ARCH_7EM__) \|\| defined(__ARM_ARCH_7S__)
	#define BOOST_ATOMIC_DETAIL_ARM_ARCH 7
	#elif defined(__ARM_ARCH_6__) \|\| defined(__ARM_ARCH_6J__) \|\|\
	defined(__ARM_ARCH_6K__) \|\| defined(__ARM_ARCH_6Z__) \|\|\
	defined(__ARM_ARCH_6ZK__)
	#define BOOST_ATOMIC_DETAIL_ARM_ARCH 6
	#else
	// We are not interested in older versions - they don't support atomic ops
	#define BOOST_ATOMIC_DETAIL_ARM_ARCH 0
	#endif

	#endif // defined(__GNUC__) && defined(__arm__)

	#if !defined(BOOST_ATOMIC_FORCE_FALLBACK)

	// Determine the target platform.
	// The target platform describes the compiler and target architecture. It can be used by more generic backends, such as the ones
	// based on compiler intrinsics, to implement specialized operations in a non-generic way.

	#if defined(__GNUC__) && (defined(__i386__) \|\| defined(__x86_64__))

	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_x86
	#define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_x86

	#elif defined(__GNUC__) && defined(__aarch64__)

	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_aarch64
	#define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_aarch64

	#elif defined(__GNUC__) && defined(__arm__) && (BOOST_ATOMIC_DETAIL_ARM_ARCH >= 6)

	#if (BOOST_ATOMIC_DETAIL_ARM_ARCH >= 8)
	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_aarch32
	#define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_aarch32
	#else
	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_arm
	#define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_arm
	#endif

	#elif defined(__GNUC__) && (defined(__POWERPC__) \|\| defined(__PPC__))

	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_ppc
	#define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND gcc_ppc

	#elif (defined(__GNUC__) \|\| defined(__SUNPRO_CC)) && (defined(__sparcv8plus) \|\| defined(__sparc_v9__))

	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_sparc

	#elif defined(__GNUC__) && defined(__alpha__)

	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND gcc_alpha

	#elif defined(_MSC_VER) && (defined(_M_IX86) \|\| defined(_M_X64))

	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND msvc_x86

	#elif defined(_MSC_VER) && _MSC_VER >= 1700 && (defined(_M_ARM) \|\| defined(_M_ARM64))

	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND msvc_arm

	#endif

	// Compiler-based backends

	// IBM XL C++ Compiler has to be checked before GCC/Clang as it pretends to be one but does not support __atomic* intrinsics.
	// It does support GCC inline assembler though.
	#if !(defined(__ibmxl__) \|\| defined(__IBMCPP__)) &&\
	((defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 407)) \|\|\
	(defined(BOOST_CLANG) && ((__clang_major__ * 100 + __clang_minor__) >= 302))) &&\
	(\
	(__GCC_ATOMIC_BOOL_LOCK_FREE + 0) == 2 \|\|\
	(__GCC_ATOMIC_CHAR_LOCK_FREE + 0) == 2 \|\|\
	(__GCC_ATOMIC_SHORT_LOCK_FREE + 0) == 2 \|\|\
	(__GCC_ATOMIC_INT_LOCK_FREE + 0) == 2 \|\|\
	(__GCC_ATOMIC_LONG_LOCK_FREE + 0) == 2 \|\|\
	(__GCC_ATOMIC_LLONG_LOCK_FREE + 0) == 2\
	)

	#define BOOST_ATOMIC_DETAIL_CORE_BACKEND gcc_atomic

	// GCC __sync* instrinsics backend is less efficient than asm-based backends, so use it only when nothing better is available.
	#elif !defined(BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND) &&\
	defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 401) &&\
	(\
	defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1) \|\|\
	defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2) \|\|\
	defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) \|\|\
	defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) \|\|\
	defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16)\
	)

	#define BOOST_ATOMIC_DETAIL_CORE_BACKEND gcc_sync

	#endif

	// OS-based backends

	#if !defined(BOOST_ATOMIC_DETAIL_CORE_BACKEND) && !defined(BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND)

	#if defined(__linux__) && defined(__arm__)

	#define BOOST_ATOMIC_DETAIL_CORE_BACKEND linux_arm

	#elif defined(BOOST_WINDOWS) \|\| defined(_WIN32_CE)

	#define BOOST_ATOMIC_DETAIL_CORE_BACKEND windows

	#endif

	#endif // !defined(BOOST_ATOMIC_DETAIL_CORE_BACKEND)

	// Waiting and notifying operations backends
	#if defined(BOOST_WINDOWS)

	#define BOOST_ATOMIC_DETAIL_WAIT_BACKEND windows

	#else // defined(BOOST_WINDOWS)

	#include <boost/atomic/detail/futex.hpp>

	#if defined(BOOST_ATOMIC_DETAIL_HAS_FUTEX)
	#define BOOST_ATOMIC_DETAIL_WAIT_BACKEND futex
	#elif defined(__FreeBSD__)
	#include <sys/param.h>
	// FreeBSD prior to 7.0 had _umtx_op with a different signature
	#if defined(__FreeBSD_version) && __FreeBSD_version >= 700000
	#define BOOST_ATOMIC_DETAIL_WAIT_BACKEND freebsd_umtx
	#endif // defined(__FreeBSD_version) && __FreeBSD_version >= 700000
	#elif defined(__DragonFly__)
	#define BOOST_ATOMIC_DETAIL_WAIT_BACKEND dragonfly_umtx
	#endif

	#endif // defined(BOOST_WINDOWS)

	#endif // !defined(BOOST_ATOMIC_FORCE_FALLBACK)

	#if !defined(BOOST_ATOMIC_DETAIL_FP_BACKEND)
	#define BOOST_ATOMIC_DETAIL_FP_BACKEND generic
	#define BOOST_ATOMIC_DETAIL_FP_BACKEND_GENERIC
	#endif

	#if !defined(BOOST_ATOMIC_DETAIL_EXTRA_BACKEND)
	#define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND generic
	#define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND_GENERIC
	#endif

	#if !defined(BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND)
	#define BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND generic
	#define BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND_GENERIC
	#endif

	#if !defined(BOOST_ATOMIC_DETAIL_WAIT_BACKEND)
	#define BOOST_ATOMIC_DETAIL_WAIT_BACKEND generic
	#define BOOST_ATOMIC_DETAIL_WAIT_BACKEND_GENERIC
	#endif

	#if defined(BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND)
	#define BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_CORE_ARCH_BACKEND).hpp>
	#endif
	#if defined(BOOST_ATOMIC_DETAIL_CORE_BACKEND)
	#define BOOST_ATOMIC_DETAIL_CORE_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_CORE_BACKEND).hpp>
	#endif
	#define BOOST_ATOMIC_DETAIL_FP_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_FP_BACKEND).hpp>
	#define BOOST_ATOMIC_DETAIL_EXTRA_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_EXTRA_BACKEND).hpp>
	#define BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_EXTRA_FP_BACKEND).hpp>
	#define BOOST_ATOMIC_DETAIL_WAIT_BACKEND_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_WAIT_BACKEND).hpp>

	#endif // BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_