1 /* 2 * Distributed under the Boost Software License, Version 1.0. 3 * (See accompanying file LICENSE_1_0.txt or copy at 4 * http://www.boost.org/LICENSE_1_0.txt) 5 * 6 * Copyright (c) 2011 Helge Bahmann 7 * Copyright (c) 2013 Tim Blechmann 8 * Copyright (c) 2014 Andrey Semashev 9 */ 10 /*! 11 * \file atomic/detail/caps_gcc_sync.hpp 12 * 13 * This header defines feature capabilities macros 14 */ 15 16 #ifndef BOOST_ATOMIC_DETAIL_CAPS_GCC_SYNC_HPP_INCLUDED_ 17 #define BOOST_ATOMIC_DETAIL_CAPS_GCC_SYNC_HPP_INCLUDED_ 18 19 #include <boost/atomic/detail/config.hpp> 20 21 #ifdef BOOST_HAS_PRAGMA_ONCE 22 #pragma once 23 #endif 24 25 #if defined(__i386__) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) 26 #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B 1 27 #endif 28 29 #if defined(__x86_64__) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) 30 #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B 1 31 #endif 32 33 #if defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1)\ 34 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2)\ 35 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)\ 36 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8)\ 37 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) 38 #define BOOST_ATOMIC_INT8_LOCK_FREE 2 39 #endif 40 #if defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2)\ 41 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)\ 42 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8)\ 43 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) 44 #define BOOST_ATOMIC_INT16_LOCK_FREE 2 45 #endif 46 #if defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4)\ 47 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8)\ 48 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) 49 #define BOOST_ATOMIC_INT32_LOCK_FREE 2 50 #endif 51 #if defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8)\ 52 || defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) 53 #define BOOST_ATOMIC_INT64_LOCK_FREE 2 54 #endif 55 #if defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16) 56 #define BOOST_ATOMIC_INT128_LOCK_FREE 2 57 #endif 58 59 #define BOOST_ATOMIC_THREAD_FENCE 2 60 #define BOOST_ATOMIC_SIGNAL_FENCE 2 61 62 #endif // BOOST_ATOMIC_DETAIL_CAPS_GCC_SYNC_HPP_INCLUDED_ 63