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_HURD 0
26#define KMP_OS_SOLARIS 0
27#define KMP_OS_WASI 0
28#define KMP_OS_UNIX 0 /* disjunction of KMP_OS_LINUX, KMP_OS_DARWIN etc. */
29
30#ifdef _WIN32
31#undef KMP_OS_WINDOWS
32#define KMP_OS_WINDOWS 1
33#endif
34
35#if (defined __APPLE__ && defined __MACH__)
36#undef KMP_OS_DARWIN
37#define KMP_OS_DARWIN 1
38#endif
39
40// in some ppc64 linux installations, only the second condition is met
41#if (defined __linux)
42#undef KMP_OS_LINUX
43#define KMP_OS_LINUX 1
44#elif (defined __linux__)
45#undef KMP_OS_LINUX
46#define KMP_OS_LINUX 1
47#else
48#endif
49
50#if (defined __DragonFly__)
51#undef KMP_OS_DRAGONFLY
52#define KMP_OS_DRAGONFLY 1
53#endif
54
55#if (defined __FreeBSD__)
56#undef KMP_OS_FREEBSD
57#define KMP_OS_FREEBSD 1
58#endif
59
60#if (defined __NetBSD__)
61#undef KMP_OS_NETBSD
62#define KMP_OS_NETBSD 1
63#endif
64
65#if (defined __OpenBSD__)
66#undef KMP_OS_OPENBSD
67#define KMP_OS_OPENBSD 1
68#endif
69
70#if (defined __GNU__)
71#undef KMP_OS_HURD
72#define KMP_OS_HURD 1
73#endif
74
75#if (defined __sun__ && defined __svr4__)
76#undef KMP_OS_SOLARIS
77#define KMP_OS_SOLARIS 1
78#endif
79
80#if (defined __wasi__) || (defined __EMSCRIPTEN__)
81#undef KMP_OS_WASI
82#define KMP_OS_WASI 1
83#endif
84
85#if (defined _AIX)
86#undef KMP_OS_AIX
87#define KMP_OS_AIX 1
88#endif
89
90#if (1 != KMP_OS_LINUX + KMP_OS_DRAGONFLY + KMP_OS_FREEBSD + KMP_OS_NETBSD + \
91 KMP_OS_OPENBSD + KMP_OS_DARWIN + KMP_OS_WINDOWS + KMP_OS_HURD + \
92 KMP_OS_SOLARIS + KMP_OS_WASI + KMP_OS_AIX)
93#error Unknown OS
94#endif
95
96#if KMP_OS_LINUX || KMP_OS_DRAGONFLY || KMP_OS_FREEBSD || KMP_OS_NETBSD || \
97 KMP_OS_OPENBSD || KMP_OS_DARWIN || KMP_OS_HURD || KMP_OS_SOLARIS || \
98 KMP_OS_WASI || KMP_OS_AIX
99#undef KMP_OS_UNIX
100#define KMP_OS_UNIX 1
101#endif
102
103/* ---------------------- Architecture recognition ------------------- */
104
105#define KMP_ARCH_X86 0
106#define KMP_ARCH_X86_64 0
107#define KMP_ARCH_AARCH64 0
108#define KMP_ARCH_AARCH64_32 0
109#define KMP_ARCH_PPC64_ELFv1 0
110#define KMP_ARCH_PPC64_ELFv2 0
111#define KMP_ARCH_PPC64_XCOFF 0
112#define KMP_ARCH_PPC_XCOFF 0
113#define KMP_ARCH_MIPS 0
114#define KMP_ARCH_MIPS64 0
115#define KMP_ARCH_RISCV64 0
116#define KMP_ARCH_LOONGARCH64 0
117#define KMP_ARCH_VE 0
118#define KMP_ARCH_S390X 0
119
120#if KMP_OS_WINDOWS
121#if defined(_M_AMD64) || defined(__x86_64)
122#undef KMP_ARCH_X86_64
123#define KMP_ARCH_X86_64 1
124#elif defined(__aarch64__) || defined(_M_ARM64)
125#undef KMP_ARCH_AARCH64
126#define KMP_ARCH_AARCH64 1
127#elif defined(__arm__) || defined(_M_ARM)
128#undef KMP_ARCH_ARMV7
129#define KMP_ARCH_ARMV7 1
130#else
131#undef KMP_ARCH_X86
132#define KMP_ARCH_X86 1
133#endif
134#endif
135
136#if KMP_OS_UNIX
137#if defined __x86_64
138#undef KMP_ARCH_X86_64
139#define KMP_ARCH_X86_64 1
140#elif defined __i386
141#undef KMP_ARCH_X86
142#define KMP_ARCH_X86 1
143#elif defined __powerpc64__
144#if defined(_CALL_ELF)
145#if _CALL_ELF == 2
146#undef KMP_ARCH_PPC64_ELFv2
147#define KMP_ARCH_PPC64_ELFv2 1
148#else
149#undef KMP_ARCH_PPC64_ELFv1
150#define KMP_ARCH_PPC64_ELFv1 1
151#endif
152#elif defined KMP_OS_AIX
153#undef KMP_ARCH_PPC64_XCOFF
154#define KMP_ARCH_PPC64_XCOFF 1
155#endif
156#elif defined(__powerpc__) && defined(KMP_OS_AIX)
157#undef KMP_ARCH_PPC_XCOFF
158#define KMP_ARCH_PPC_XCOFF 1
159#undef KMP_ARCH_PPC
160#define KMP_ARCH_PPC 1
161#elif defined __ARM64_ARCH_8_32__
162#undef KMP_ARCH_AARCH64_32
163#define KMP_ARCH_AARCH64_32 1
164#elif defined __aarch64__
165#undef KMP_ARCH_AARCH64
166#define KMP_ARCH_AARCH64 1
167#elif defined __mips__
168#if defined __mips64
169#undef KMP_ARCH_MIPS64
170#define KMP_ARCH_MIPS64 1
171#else
172#undef KMP_ARCH_MIPS
173#define KMP_ARCH_MIPS 1
174#endif
175#elif defined __riscv && __riscv_xlen == 64
176#undef KMP_ARCH_RISCV64
177#define KMP_ARCH_RISCV64 1
178#elif defined __loongarch__ && __loongarch_grlen == 64
179#undef KMP_ARCH_LOONGARCH64
180#define KMP_ARCH_LOONGARCH64 1
181#elif defined __ve__
182#undef KMP_ARCH_VE
183#define KMP_ARCH_VE 1
184#elif defined __s390x__
185#undef KMP_ARCH_S390X
186#define KMP_ARCH_S390X 1
187#endif
188#endif
189
190#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7R__) || \
191 defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7VE__)
192#define KMP_ARCH_ARMV7 1
193#endif
194
195#if defined(KMP_ARCH_ARMV7) || defined(__ARM_ARCH_6__) || \
196 defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) || \
197 defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6T2__) || \
198 defined(__ARM_ARCH_6ZK__)
199#define KMP_ARCH_ARMV6 1
200#endif
201
202#if defined(KMP_ARCH_ARMV6) || defined(__ARM_ARCH_5T__) || \
203 defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) || \
204 defined(__ARM_ARCH_5TEJ__)
205#define KMP_ARCH_ARMV5 1
206#endif
207
208#if defined(KMP_ARCH_ARMV5) || defined(__ARM_ARCH_4__) || \
209 defined(__ARM_ARCH_4T__)
210#define KMP_ARCH_ARMV4 1
211#endif
212
213#if defined(KMP_ARCH_ARMV4) || defined(__ARM_ARCH_3__) || \
214 defined(__ARM_ARCH_3M__)
215#define KMP_ARCH_ARMV3 1
216#endif
217
218#if defined(KMP_ARCH_ARMV3) || defined(__ARM_ARCH_2__)
219#define KMP_ARCH_ARMV2 1
220#endif
221
222#if defined(KMP_ARCH_ARMV2)
223#define KMP_ARCH_ARM 1
224#endif
225
226#if defined(__wasm32__)
227#define KMP_ARCH_WASM 1
228#endif
229
230#define KMP_ARCH_PPC64 \
231 (KMP_ARCH_PPC64_ELFv2 || KMP_ARCH_PPC64_ELFv1 || KMP_ARCH_PPC64_XCOFF)
232
233#if defined(__MIC__) || defined(__MIC2__)
234#define KMP_MIC 1
235#if __MIC2__ || __KNC__
236#define KMP_MIC1 0
237#define KMP_MIC2 1
238#else
239#define KMP_MIC1 1
240#define KMP_MIC2 0
241#endif
242#else
243#define KMP_MIC 0
244#define KMP_MIC1 0
245#define KMP_MIC2 0
246#endif
247
248/* Specify 32 bit architectures here */
249#define KMP_32_BIT_ARCH \
250 (KMP_ARCH_X86 || KMP_ARCH_ARM || KMP_ARCH_MIPS || KMP_ARCH_WASM || \
251 KMP_ARCH_PPC || KMP_ARCH_AARCH64_32)
252
253// Platforms which support Intel(R) Many Integrated Core Architecture
254#define KMP_MIC_SUPPORTED \
255 ((KMP_ARCH_X86 || KMP_ARCH_X86_64) && (KMP_OS_LINUX || KMP_OS_WINDOWS))
256
257// TODO: Fixme - This is clever, but really fugly
258#if (1 != KMP_ARCH_X86 + KMP_ARCH_X86_64 + KMP_ARCH_ARM + KMP_ARCH_PPC64 + \
259 KMP_ARCH_AARCH64 + KMP_ARCH_MIPS + KMP_ARCH_MIPS64 + \
260 KMP_ARCH_RISCV64 + KMP_ARCH_LOONGARCH64 + KMP_ARCH_VE + \
261 KMP_ARCH_S390X + KMP_ARCH_WASM + KMP_ARCH_PPC + \
262 KMP_ARCH_AARCH64_32)
263#error Unknown or unsupported architecture
264#endif
265
266#endif // KMP_PLATFORM_H
267

source code of openmp/runtime/src/kmp_platform.h