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_PPC64_ELFv1 0
109#define KMP_ARCH_PPC64_ELFv2 0
110#define KMP_ARCH_PPC64_XCOFF 0
111#define KMP_ARCH_PPC_XCOFF 0
112#define KMP_ARCH_MIPS 0
113#define KMP_ARCH_MIPS64 0
114#define KMP_ARCH_RISCV64 0
115#define KMP_ARCH_LOONGARCH64 0
116#define KMP_ARCH_VE 0
117#define KMP_ARCH_S390X 0
118
119#if KMP_OS_WINDOWS
120#if defined(_M_AMD64) || defined(__x86_64)
121#undef KMP_ARCH_X86_64
122#define KMP_ARCH_X86_64 1
123#elif defined(__aarch64__) || defined(_M_ARM64)
124#undef KMP_ARCH_AARCH64
125#define KMP_ARCH_AARCH64 1
126#elif defined(__arm__) || defined(_M_ARM)
127#undef KMP_ARCH_ARMV7
128#define KMP_ARCH_ARMV7 1
129#else
130#undef KMP_ARCH_X86
131#define KMP_ARCH_X86 1
132#endif
133#endif
134
135#if KMP_OS_UNIX
136#if defined __x86_64
137#undef KMP_ARCH_X86_64
138#define KMP_ARCH_X86_64 1
139#elif defined __i386
140#undef KMP_ARCH_X86
141#define KMP_ARCH_X86 1
142#elif defined __powerpc64__
143#if defined(_CALL_ELF)
144#if _CALL_ELF == 2
145#undef KMP_ARCH_PPC64_ELFv2
146#define KMP_ARCH_PPC64_ELFv2 1
147#else
148#undef KMP_ARCH_PPC64_ELFv1
149#define KMP_ARCH_PPC64_ELFv1 1
150#endif
151#elif defined KMP_OS_AIX
152#undef KMP_ARCH_PPC64_XCOFF
153#define KMP_ARCH_PPC64_XCOFF 1
154#endif
155#elif defined(__powerpc__) && defined(KMP_OS_AIX)
156#undef KMP_ARCH_PPC_XCOFF
157#define KMP_ARCH_PPC_XCOFF 1
158#undef KMP_ARCH_PPC
159#define KMP_ARCH_PPC 1
160#elif defined __aarch64__
161#undef KMP_ARCH_AARCH64
162#define KMP_ARCH_AARCH64 1
163#elif defined __mips__
164#if defined __mips64
165#undef KMP_ARCH_MIPS64
166#define KMP_ARCH_MIPS64 1
167#else
168#undef KMP_ARCH_MIPS
169#define KMP_ARCH_MIPS 1
170#endif
171#elif defined __riscv && __riscv_xlen == 64
172#undef KMP_ARCH_RISCV64
173#define KMP_ARCH_RISCV64 1
174#elif defined __loongarch__ && __loongarch_grlen == 64
175#undef KMP_ARCH_LOONGARCH64
176#define KMP_ARCH_LOONGARCH64 1
177#elif defined __ve__
178#undef KMP_ARCH_VE
179#define KMP_ARCH_VE 1
180#elif defined __s390x__
181#undef KMP_ARCH_S390X
182#define KMP_ARCH_S390X 1
183#endif
184#endif
185
186#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7R__) ||                     \
187    defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7VE__)
188#define KMP_ARCH_ARMV7 1
189#endif
190
191#if defined(KMP_ARCH_ARMV7) || defined(__ARM_ARCH_6__) ||                      \
192    defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) ||                    \
193    defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6T2__) ||                   \
194    defined(__ARM_ARCH_6ZK__)
195#define KMP_ARCH_ARMV6 1
196#endif
197
198#if defined(KMP_ARCH_ARMV6) || defined(__ARM_ARCH_5T__) ||                     \
199    defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) ||                   \
200    defined(__ARM_ARCH_5TEJ__)
201#define KMP_ARCH_ARMV5 1
202#endif
203
204#if defined(KMP_ARCH_ARMV5) || defined(__ARM_ARCH_4__) ||                      \
205    defined(__ARM_ARCH_4T__)
206#define KMP_ARCH_ARMV4 1
207#endif
208
209#if defined(KMP_ARCH_ARMV4) || defined(__ARM_ARCH_3__) ||                      \
210    defined(__ARM_ARCH_3M__)
211#define KMP_ARCH_ARMV3 1
212#endif
213
214#if defined(KMP_ARCH_ARMV3) || defined(__ARM_ARCH_2__)
215#define KMP_ARCH_ARMV2 1
216#endif
217
218#if defined(KMP_ARCH_ARMV2)
219#define KMP_ARCH_ARM 1
220#endif
221
222#if defined(__wasm32__)
223#define KMP_ARCH_WASM 1
224#endif
225
226#define KMP_ARCH_PPC64                                                         \
227  (KMP_ARCH_PPC64_ELFv2 || KMP_ARCH_PPC64_ELFv1 || KMP_ARCH_PPC64_XCOFF)
228
229#if defined(__MIC__) || defined(__MIC2__)
230#define KMP_MIC 1
231#if __MIC2__ || __KNC__
232#define KMP_MIC1 0
233#define KMP_MIC2 1
234#else
235#define KMP_MIC1 1
236#define KMP_MIC2 0
237#endif
238#else
239#define KMP_MIC 0
240#define KMP_MIC1 0
241#define KMP_MIC2 0
242#endif
243
244/* Specify 32 bit architectures here */
245#define KMP_32_BIT_ARCH                                                        \
246  (KMP_ARCH_X86 || KMP_ARCH_ARM || KMP_ARCH_MIPS || KMP_ARCH_WASM ||           \
247   KMP_ARCH_PPC)
248
249// Platforms which support Intel(R) Many Integrated Core Architecture
250#define KMP_MIC_SUPPORTED                                                      \
251  ((KMP_ARCH_X86 || KMP_ARCH_X86_64) && (KMP_OS_LINUX || KMP_OS_WINDOWS))
252
253// TODO: Fixme - This is clever, but really fugly
254#if (1 != KMP_ARCH_X86 + KMP_ARCH_X86_64 + KMP_ARCH_ARM + KMP_ARCH_PPC64 +     \
255              KMP_ARCH_AARCH64 + KMP_ARCH_MIPS + KMP_ARCH_MIPS64 +             \
256              KMP_ARCH_RISCV64 + KMP_ARCH_LOONGARCH64 + KMP_ARCH_VE +          \
257              KMP_ARCH_S390X + KMP_ARCH_WASM + KMP_ARCH_PPC)
258#error Unknown or unsupported architecture
259#endif
260
261#endif // KMP_PLATFORM_H
262