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) 2009 Helge Bahmann
7 * Copyright (c) 2014 Andrey Semashev
8 */
9/*!
10 * \file atomic/detail/platform.hpp
11 *
12 * This header defines macros for the target platform detection
13 */
14
15#ifndef BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_
16#define BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_
17
18#include <boost/atomic/detail/config.hpp>
19
20#ifdef BOOST_HAS_PRAGMA_ONCE
21#pragma once
22#endif
23
24#if !defined(BOOST_ATOMIC_FORCE_FALLBACK)
25
26// Compiler-based backends
27#if (defined(__ibmxl__) || defined(__IBMCPP__)) && defined(__PPC__)
28
29// IBM XL C++ Compiler has to be checked before GCC/Clang as it pretends to be one but does not support __atomic* intrinsics.
30// It does support GCC inline assembler though.
31#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_ppc
32
33#elif ((defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 407)) ||\
34 (defined(BOOST_CLANG) && ((__clang_major__ * 100 + __clang_minor__) >= 302))) &&\
35 (\
36 (__GCC_ATOMIC_BOOL_LOCK_FREE + 0) == 2 ||\
37 (__GCC_ATOMIC_CHAR_LOCK_FREE + 0) == 2 ||\
38 (__GCC_ATOMIC_SHORT_LOCK_FREE + 0) == 2 ||\
39 (__GCC_ATOMIC_INT_LOCK_FREE + 0) == 2 ||\
40 (__GCC_ATOMIC_LONG_LOCK_FREE + 0) == 2 ||\
41 (__GCC_ATOMIC_LLONG_LOCK_FREE + 0) == 2\
42 )
43
44#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_atomic
45
46#elif (defined(__GNUC__) || defined(__SUNPRO_CC)) && (defined(__i386__) || defined(__x86_64__))
47
48#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_x86
49
50#elif defined(__GNUC__) && (defined(__POWERPC__) || defined(__PPC__))
51
52#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_ppc
53
54// This list of ARM architecture versions comes from Apple's arm/arch.h header.
55// I don't know how complete it is.
56#elif defined(__GNUC__) &&\
57 (\
58 defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) ||\
59 defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) ||\
60 defined(__ARM_ARCH_6ZK__) ||\
61 defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) ||\
62 defined(__ARM_ARCH_7R__) || defined(__ARM_ARCH_7M__) ||\
63 defined(__ARM_ARCH_7EM__) || defined(__ARM_ARCH_7S__) ||\
64 defined(__ARM_ARCH_8A__)\
65 )
66
67#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_arm
68
69#elif (defined(__GNUC__) || defined(__SUNPRO_CC)) && (defined(__sparcv8plus) || defined(__sparc_v9__))
70
71#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_sparc
72
73#elif defined(__GNUC__) && defined(__alpha__)
74
75#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_alpha
76
77#elif defined(__GNUC__) && ((__GNUC__ * 100 + __GNUC_MINOR__) >= 401) &&\
78 (\
79 defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_1) ||\
80 defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_2) ||\
81 defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_4) ||\
82 defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_8) ||\
83 defined(__GCC_HAVE_SYNC_COMPARE_AND_SWAP_16)\
84 )
85
86#define BOOST_ATOMIC_DETAIL_PLATFORM gcc_sync
87
88#elif defined(_MSC_VER) && (defined(_M_IX86) || defined(_M_X64))
89
90#define BOOST_ATOMIC_DETAIL_PLATFORM msvc_x86
91
92#elif defined(_MSC_VER) && _MSC_VER >= 1700 && (defined(_M_ARM) || defined(_M_ARM64))
93
94#define BOOST_ATOMIC_DETAIL_PLATFORM msvc_arm
95
96#endif
97
98// OS-based backends
99#if !defined(BOOST_ATOMIC_DETAIL_PLATFORM)
100
101#if defined(__linux__) && defined(__arm__)
102
103#define BOOST_ATOMIC_DETAIL_PLATFORM linux_arm
104
105#elif defined(BOOST_WINDOWS) || defined(_WIN32_CE)
106
107#define BOOST_ATOMIC_DETAIL_PLATFORM windows
108
109#endif
110
111#endif // !defined(BOOST_ATOMIC_DETAIL_PLATFORM)
112
113#endif // !defined(BOOST_ATOMIC_FORCE_FALLBACK)
114
115#if !defined(BOOST_ATOMIC_DETAIL_PLATFORM)
116#define BOOST_ATOMIC_DETAIL_PLATFORM emulated
117#define BOOST_ATOMIC_EMULATED
118#endif
119
120#define BOOST_ATOMIC_DETAIL_HEADER(prefix) <BOOST_JOIN(prefix, BOOST_ATOMIC_DETAIL_PLATFORM).hpp>
121
122#endif // BOOST_ATOMIC_DETAIL_PLATFORM_HPP_INCLUDED_
123