LLVM OpenMP* Runtime Library
kmp_platform.h
1 /*
2  * kmp_platform.h -- header for determining operating system and architecture
3  */
4 
5 //===----------------------------------------------------------------------===//
6 //
7 // The LLVM Compiler Infrastructure
8 //
9 // This file is dual licensed under the MIT and the University of Illinois Open
10 // Source Licenses. See LICENSE.txt for details.
11 //
12 //===----------------------------------------------------------------------===//
13 
14 #ifndef KMP_PLATFORM_H
15 #define KMP_PLATFORM_H
16 
17 /* ---------------------- Operating system recognition ------------------- */
18 
19 #define KMP_OS_LINUX 0
20 #define KMP_OS_FREEBSD 0
21 #define KMP_OS_DARWIN 0
22 #define KMP_OS_WINDOWS 0
23 #define KMP_OS_CNK 0
24 #define KMP_OS_UNIX 0 /* disjunction of KMP_OS_LINUX, KMP_OS_DARWIN etc. */
25 
26 
27 #ifdef _WIN32
28 # undef KMP_OS_WINDOWS
29 # define KMP_OS_WINDOWS 1
30 #endif
31 
32 #if ( defined __APPLE__ && defined __MACH__ )
33 # undef KMP_OS_DARWIN
34 # define KMP_OS_DARWIN 1
35 #endif
36 
37 // in some ppc64 linux installations, only the second condition is met
38 #if ( defined __linux )
39 # undef KMP_OS_LINUX
40 # define KMP_OS_LINUX 1
41 #elif ( defined __linux__)
42 # undef KMP_OS_LINUX
43 # define KMP_OS_LINUX 1
44 #else
45 #endif
46 
47 #if ( defined __FreeBSD__ )
48 # undef KMP_OS_FREEBSD
49 # define KMP_OS_FREEBSD 1
50 #endif
51 
52 #if ( defined __bgq__ )
53 # undef KMP_OS_CNK
54 # define KMP_OS_CNK 1
55 #endif
56 
57 #if (1 != KMP_OS_LINUX + KMP_OS_FREEBSD + KMP_OS_DARWIN + KMP_OS_WINDOWS)
58 # error Unknown OS
59 #endif
60 
61 #if KMP_OS_LINUX || KMP_OS_FREEBSD || KMP_OS_DARWIN
62 # undef KMP_OS_UNIX
63 # define KMP_OS_UNIX 1
64 #endif
65 
66 /* ---------------------- Architecture recognition ------------------- */
67 
68 #define KMP_ARCH_X86 0
69 #define KMP_ARCH_X86_64 0
70 #define KMP_ARCH_AARCH64 0
71 #define KMP_ARCH_PPC64_BE 0
72 #define KMP_ARCH_PPC64_LE 0
73 #define KMP_ARCH_PPC64 (KMP_ARCH_PPC64_LE || KMP_ARCH_PPC64_BE)
74 #define KMP_ARCH_MIPS 0
75 #define KMP_ARCH_MIPS64 0
76 
77 #if KMP_OS_WINDOWS
78 # if defined _M_AMD64
79 # undef KMP_ARCH_X86_64
80 # define KMP_ARCH_X86_64 1
81 # else
82 # undef KMP_ARCH_X86
83 # define KMP_ARCH_X86 1
84 # endif
85 #endif
86 
87 #if KMP_OS_UNIX
88 # if defined __x86_64
89 # undef KMP_ARCH_X86_64
90 # define KMP_ARCH_X86_64 1
91 # elif defined __i386
92 # undef KMP_ARCH_X86
93 # define KMP_ARCH_X86 1
94 # elif defined __powerpc64__
95 # if defined __LITTLE_ENDIAN__
96 # undef KMP_ARCH_PPC64_LE
97 # define KMP_ARCH_PPC64_LE 1
98 # else
99 # undef KMP_ARCH_PPC64_BE
100 # define KMP_ARCH_PPC64_BE 1
101 # endif
102 # elif defined __aarch64__
103 # undef KMP_ARCH_AARCH64
104 # define KMP_ARCH_AARCH64 1
105 # elif defined __mips__
106 # if defined __mips64
107 # undef KMP_ARCH_MIPS64
108 # define KMP_ARCH_MIPS64 1
109 # else
110 # undef KMP_ARCH_MIPS
111 # define KMP_ARCH_MIPS 1
112 # endif
113 # endif
114 #endif
115 
116 #if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7R__) || \
117  defined(__ARM_ARCH_7A__)
118 # define KMP_ARCH_ARMV7 1
119 #endif
120 
121 #if defined(KMP_ARCH_ARMV7) || defined(__ARM_ARCH_6__) || \
122  defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || \
123  defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6T2__) || \
124  defined(__ARM_ARCH_6ZK__)
125 # define KMP_ARCH_ARMV6 1
126 #endif
127 
128 #if defined(KMP_ARCH_ARMV6) || defined(__ARM_ARCH_5T__) || \
129  defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \
130  defined(__ARM_ARCH_5TEJ__)
131 # define KMP_ARCH_ARMV5 1
132 #endif
133 
134 #if defined(KMP_ARCH_ARMV5) || defined(__ARM_ARCH_4__) || \
135  defined(__ARM_ARCH_4T__)
136 # define KMP_ARCH_ARMV4 1
137 #endif
138 
139 #if defined(KMP_ARCH_ARMV4) || defined(__ARM_ARCH_3__) || \
140  defined(__ARM_ARCH_3M__)
141 # define KMP_ARCH_ARMV3 1
142 #endif
143 
144 #if defined(KMP_ARCH_ARMV3) || defined(__ARM_ARCH_2__)
145 # define KMP_ARCH_ARMV2 1
146 #endif
147 
148 #if defined(KMP_ARCH_ARMV2)
149 # define KMP_ARCH_ARM 1
150 #endif
151 
152 // TODO: Fixme - This is clever, but really fugly
153 #if (1 != KMP_ARCH_X86 + KMP_ARCH_X86_64 + KMP_ARCH_ARM + KMP_ARCH_PPC64 + KMP_ARCH_AARCH64 + KMP_ARCH_MIPS + KMP_ARCH_MIPS64)
154 # error Unknown or unsupported architecture
155 #endif
156 
157 #endif // KMP_PLATFORM_H