kmp_platform.h revision 355940 
1/*
2 * kmp_platform.h -- header for determining operating system and architecture
3 */
4
5//===----------------------------------------------------------------------===//
6//
7// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
8// See https://llvm.org/LICENSE.txt for license information.
9// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
10//
11//===----------------------------------------------------------------------===//
12
13#ifndef KMP_PLATFORM_H
14#define KMP_PLATFORM_H
15
16/* ---------------------- Operating system recognition ------------------- */
17
18#define KMP_OS_LINUX 0
19#define KMP_OS_DRAGONFLY 0
20#define KMP_OS_FREEBSD 0
21#define KMP_OS_NETBSD 0
22#define KMP_OS_OPENBSD 0
23#define KMP_OS_DARWIN 0
24#define KMP_OS_WINDOWS 0
25#define KMP_OS_CNK 0
26#define KMP_OS_HURD 0
27#define KMP_OS_UNIX 0 /* disjunction of KMP_OS_LINUX, KMP_OS_DARWIN etc. */
28
29#ifdef _WIN32
30#undef KMP_OS_WINDOWS
31#define KMP_OS_WINDOWS 1
32#endif
33
34#if (defined __APPLE__ && defined __MACH__)
35#undef KMP_OS_DARWIN
36#define KMP_OS_DARWIN 1
37#endif
38
39// in some ppc64 linux installations, only the second condition is met
40#if (defined __linux)
41#undef KMP_OS_LINUX
42#define KMP_OS_LINUX 1
43#elif (defined __linux__)
44#undef KMP_OS_LINUX
45#define KMP_OS_LINUX 1
46#else
47#endif
48
49#if (defined __DragonFly__)
50#undef KMP_OS_DRAGONFLY
51#define KMP_OS_DRAGONFLY 1
52#endif
53
54#if (defined __FreeBSD__)
55#undef KMP_OS_FREEBSD
56#define KMP_OS_FREEBSD 1
57#endif
58
59#if (defined __NetBSD__)
60#undef KMP_OS_NETBSD
61#define KMP_OS_NETBSD 1
62#endif
63
64#if (defined __OpenBSD__)
65#undef KMP_OS_OPENBSD
66#define KMP_OS_OPENBSD 1
67#endif
68
69#if (defined __bgq__)
70#undef KMP_OS_CNK
71#define KMP_OS_CNK 1
72#endif
73
74#if (defined __GNU__)
75#undef KMP_OS_HURD
76#define KMP_OS_HURD 1
77#endif
78
79#if (1 !=                                                                      \
80     KMP_OS_LINUX + KMP_OS_DRAGONFLY + KMP_OS_FREEBSD + KMP_OS_NETBSD +        \
81         KMP_OS_OPENBSD + KMP_OS_DARWIN + KMP_OS_WINDOWS + KMP_OS_HURD)
82#error Unknown OS
83#endif
84
85#if KMP_OS_LINUX || KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD ||     \
86        KMP_OS_OPENBSD || KMP_OS_DARWIN || KMP_OS_HURD
87#undef KMP_OS_UNIX
88#define KMP_OS_UNIX 1
89#endif
90
91/* ---------------------- Architecture recognition ------------------- */
92
93#define KMP_ARCH_X86 0
94#define KMP_ARCH_X86_64 0
95#define KMP_ARCH_AARCH64 0
96#define KMP_ARCH_PPC64_ELFv1 0
97#define KMP_ARCH_PPC64_ELFv2 0
98#define KMP_ARCH_PPC64 (KMP_ARCH_PPC64_ELFv2 || KMP_ARCH_PPC64_ELFv1)
99#define KMP_ARCH_MIPS 0
100#define KMP_ARCH_MIPS64 0
101
102#if KMP_OS_WINDOWS
103#if defined(_M_AMD64) || defined(__x86_64)
104#undef KMP_ARCH_X86_64
105#define KMP_ARCH_X86_64 1
106#else
107#undef KMP_ARCH_X86
108#define KMP_ARCH_X86 1
109#endif
110#endif
111
112#if KMP_OS_UNIX
113#if defined __x86_64
114#undef KMP_ARCH_X86_64
115#define KMP_ARCH_X86_64 1
116#elif defined __i386
117#undef KMP_ARCH_X86
118#define KMP_ARCH_X86 1
119#elif defined __powerpc64__
120#if defined(_CALL_ELF) && _CALL_ELF == 2
121#undef KMP_ARCH_PPC64_ELFv2
122#define KMP_ARCH_PPC64_ELFv2 1
123#else
124#undef KMP_ARCH_PPC64_ELFv1
125#define KMP_ARCH_PPC64_ELFv1 1
126#endif
127#elif defined __aarch64__
128#undef KMP_ARCH_AARCH64
129#define KMP_ARCH_AARCH64 1
130#elif defined __mips__
131#if defined __mips64
132#undef KMP_ARCH_MIPS64
133#define KMP_ARCH_MIPS64 1
134#else
135#undef KMP_ARCH_MIPS
136#define KMP_ARCH_MIPS 1
137#endif
138#endif
139#endif
140
141#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7R__) ||                     \
142    defined(__ARM_ARCH_7A__)
143#define KMP_ARCH_ARMV7 1
144#endif
145
146#if defined(KMP_ARCH_ARMV7) || defined(__ARM_ARCH_6__) ||                      \
147    defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) ||                    \
148    defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6T2__) ||                   \
149    defined(__ARM_ARCH_6ZK__)
150#define KMP_ARCH_ARMV6 1
151#endif
152
153#if defined(KMP_ARCH_ARMV6) || defined(__ARM_ARCH_5T__) ||                     \
154    defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) ||                   \
155    defined(__ARM_ARCH_5TEJ__)
156#define KMP_ARCH_ARMV5 1
157#endif
158
159#if defined(KMP_ARCH_ARMV5) || defined(__ARM_ARCH_4__) ||                      \
160    defined(__ARM_ARCH_4T__)
161#define KMP_ARCH_ARMV4 1
162#endif
163
164#if defined(KMP_ARCH_ARMV4) || defined(__ARM_ARCH_3__) ||                      \
165    defined(__ARM_ARCH_3M__)
166#define KMP_ARCH_ARMV3 1
167#endif
168
169#if defined(KMP_ARCH_ARMV3) || defined(__ARM_ARCH_2__)
170#define KMP_ARCH_ARMV2 1
171#endif
172
173#if defined(KMP_ARCH_ARMV2)
174#define KMP_ARCH_ARM 1
175#endif
176
177#if defined(__MIC__) || defined(__MIC2__)
178#define KMP_MIC 1
179#if __MIC2__ || __KNC__
180#define KMP_MIC1 0
181#define KMP_MIC2 1
182#else
183#define KMP_MIC1 1
184#define KMP_MIC2 0
185#endif
186#else
187#define KMP_MIC 0
188#define KMP_MIC1 0
189#define KMP_MIC2 0
190#endif
191
192/* Specify 32 bit architectures here */
193#define KMP_32_BIT_ARCH (KMP_ARCH_X86 || KMP_ARCH_ARM || KMP_ARCH_MIPS)
194
195// Platforms which support Intel(R) Many Integrated Core Architecture
196#define KMP_MIC_SUPPORTED                                                      \
197  ((KMP_ARCH_X86 || KMP_ARCH_X86_64) && (KMP_OS_LINUX || KMP_OS_WINDOWS))
198
199// TODO: Fixme - This is clever, but really fugly
200#if (1 !=                                                                      \
201     KMP_ARCH_X86 + KMP_ARCH_X86_64 + KMP_ARCH_ARM + KMP_ARCH_PPC64 +          \
202         KMP_ARCH_AARCH64 + KMP_ARCH_MIPS + KMP_ARCH_MIPS64)
203#error Unknown or unsupported architecture
204#endif
205
206#endif // KMP_PLATFORM_H
207