ceph/src/boost/libs/atomic/include/boost/atomic/detail/caps_gcc_atomic.hpp

   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) 2014 Andrey Semashev
   7  */
   8 /*!
   9  * \file   atomic/detail/caps_gcc_atomic.hpp
  10  *
  11  * This header defines feature capabilities macros
  12  */
  13
  14 #ifndef BOOST_ATOMIC_DETAIL_CAPS_GCC_ATOMIC_HPP_INCLUDED_
  15 #define BOOST_ATOMIC_DETAIL_CAPS_GCC_ATOMIC_HPP_INCLUDED_
  16
  17 #include <boost/atomic/detail/config.hpp>
  18 #include <boost/atomic/detail/int_sizes.hpp>
  19
  20 #ifdef BOOST_HAS_PRAGMA_ONCE
  21 #pragma once
  22 #endif
  23
  24 #if defined(__i386__) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8)
  25 #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG8B 1
  26 #endif
  27
  28 #if defined(__x86_64__) && defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16)
  29 #define BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B 1
  30 #endif
  31
  32 #if defined(BOOST_ATOMIC_DETAIL_X86_HAS_CMPXCHG16B) && (defined(BOOST_HAS_INT128) || !defined(BOOST_NO_ALIGNMENT))
  33 #define BOOST_ATOMIC_INT128_LOCK_FREE 2
  34 #else
  35 #define BOOST_ATOMIC_INT128_LOCK_FREE 0
  36 #endif
  37
  38 #if __GCC_ATOMIC_LLONG_LOCK_FREE == 2
  39 #define BOOST_ATOMIC_LLONG_LOCK_FREE 2
  40 #else
  41 #define BOOST_ATOMIC_LLONG_LOCK_FREE BOOST_ATOMIC_INT128_LOCK_FREE
  42 #endif
  43
  44 #if __GCC_ATOMIC_LONG_LOCK_FREE == 2
  45 #define BOOST_ATOMIC_LONG_LOCK_FREE 2
  46 #else
  47 #define BOOST_ATOMIC_LONG_LOCK_FREE BOOST_ATOMIC_LLONG_LOCK_FREE
  48 #endif
  49
  50 #if __GCC_ATOMIC_INT_LOCK_FREE == 2
  51 #define BOOST_ATOMIC_INT_LOCK_FREE 2
  52 #else
  53 #define BOOST_ATOMIC_INT_LOCK_FREE BOOST_ATOMIC_LONG_LOCK_FREE
  54 #endif
  55
  56 #if __GCC_ATOMIC_SHORT_LOCK_FREE == 2
  57 #define BOOST_ATOMIC_SHORT_LOCK_FREE 2
  58 #else
  59 #define BOOST_ATOMIC_SHORT_LOCK_FREE BOOST_ATOMIC_INT_LOCK_FREE
  60 #endif
  61
  62 #if __GCC_ATOMIC_CHAR_LOCK_FREE == 2
  63 #define BOOST_ATOMIC_CHAR_LOCK_FREE 2
  64 #else
  65 #define BOOST_ATOMIC_CHAR_LOCK_FREE BOOST_ATOMIC_SHORT_LOCK_FREE
  66 #endif
  67
  68 #if __GCC_ATOMIC_POINTER_LOCK_FREE == 2
  69 #define BOOST_ATOMIC_POINTER_LOCK_FREE 2
  70 #else
  71 #define BOOST_ATOMIC_POINTER_LOCK_FREE 0
  72 #endif
  73
  74
  75 #define BOOST_ATOMIC_INT8_LOCK_FREE BOOST_ATOMIC_CHAR_LOCK_FREE
  76
  77 #if BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 2
  78 #define BOOST_ATOMIC_INT16_LOCK_FREE BOOST_ATOMIC_SHORT_LOCK_FREE
  79 #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 2
  80 #define BOOST_ATOMIC_INT16_LOCK_FREE BOOST_ATOMIC_INT_LOCK_FREE
  81 #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 2
  82 #define BOOST_ATOMIC_INT16_LOCK_FREE BOOST_ATOMIC_LONG_LOCK_FREE
  83 #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 2
  84 #define BOOST_ATOMIC_INT16_LOCK_FREE BOOST_ATOMIC_LLONG_LOCK_FREE
  85 #else
  86 #define BOOST_ATOMIC_INT16_LOCK_FREE 0
  87 #endif
  88
  89 #if BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 4
  90 #define BOOST_ATOMIC_INT32_LOCK_FREE BOOST_ATOMIC_SHORT_LOCK_FREE
  91 #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 4
  92 #define BOOST_ATOMIC_INT32_LOCK_FREE BOOST_ATOMIC_INT_LOCK_FREE
  93 #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 4
  94 #define BOOST_ATOMIC_INT32_LOCK_FREE BOOST_ATOMIC_LONG_LOCK_FREE
  95 #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 4
  96 #define BOOST_ATOMIC_INT32_LOCK_FREE BOOST_ATOMIC_LLONG_LOCK_FREE
  97 #else
  98 #define BOOST_ATOMIC_INT32_LOCK_FREE 0
  99 #endif
 100
 101 #if BOOST_ATOMIC_DETAIL_SIZEOF_SHORT == 8
 102 #define BOOST_ATOMIC_INT64_LOCK_FREE BOOST_ATOMIC_SHORT_LOCK_FREE
 103 #elif BOOST_ATOMIC_DETAIL_SIZEOF_INT == 8
 104 #define BOOST_ATOMIC_INT64_LOCK_FREE BOOST_ATOMIC_INT_LOCK_FREE
 105 #elif BOOST_ATOMIC_DETAIL_SIZEOF_LONG == 8
 106 #define BOOST_ATOMIC_INT64_LOCK_FREE BOOST_ATOMIC_LONG_LOCK_FREE
 107 #elif BOOST_ATOMIC_DETAIL_SIZEOF_LLONG == 8
 108 #define BOOST_ATOMIC_INT64_LOCK_FREE BOOST_ATOMIC_LLONG_LOCK_FREE
 109 #else
 110 #define BOOST_ATOMIC_INT64_LOCK_FREE 0
 111 #endif
 112
 113
 114 #if __GCC_ATOMIC_WCHAR_T_LOCK_FREE == 2
 115 #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE 2
 116 #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 8
 117 #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT64_LOCK_FREE
 118 #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 4
 119 #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
 120 #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 2
 121 #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
 122 #elif BOOST_ATOMIC_DETAIL_SIZEOF_WCHAR_T == 1
 123 #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE BOOST_ATOMIC_INT8_LOCK_FREE
 124 #else
 125 #define BOOST_ATOMIC_WCHAR_T_LOCK_FREE 0
 126 #endif
 127
 128 #define BOOST_ATOMIC_CHAR32_T_LOCK_FREE BOOST_ATOMIC_INT32_LOCK_FREE
 129 #define BOOST_ATOMIC_CHAR16_T_LOCK_FREE BOOST_ATOMIC_INT16_LOCK_FREE
 130
 131 #define BOOST_ATOMIC_THREAD_FENCE 2
 132 #define BOOST_ATOMIC_SIGNAL_FENCE 2
 133
 134 #endif // BOOST_ATOMIC_DETAIL_CAPS_GCC_ATOMIC_HPP_INCLUDED_