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#define KMP_ARCH_RISCV64 0
102
103#if KMP_OS_WINDOWS
104#if defined(_M_AMD64) || defined(__x86_64)
105#undef KMP_ARCH_X86_64
106#define KMP_ARCH_X86_64 1
107#else
108#undef KMP_ARCH_X86
109#define KMP_ARCH_X86 1
110#endif
111#endif
112
113#if KMP_OS_UNIX
114#if defined __x86_64
115#undef KMP_ARCH_X86_64
116#define KMP_ARCH_X86_64 1
117#elif defined __i386
118#undef KMP_ARCH_X86
119#define KMP_ARCH_X86 1
120#elif defined __powerpc64__
121#if defined(_CALL_ELF) && _CALL_ELF == 2
122#undef KMP_ARCH_PPC64_ELFv2
123#define KMP_ARCH_PPC64_ELFv2 1
124#else
125#undef KMP_ARCH_PPC64_ELFv1
126#define KMP_ARCH_PPC64_ELFv1 1
127#endif
128#elif defined __aarch64__
129#undef KMP_ARCH_AARCH64
130#define KMP_ARCH_AARCH64 1
131#elif defined __mips__
132#if defined __mips64
133#undef KMP_ARCH_MIPS64
134#define KMP_ARCH_MIPS64 1
135#else
136#undef KMP_ARCH_MIPS
137#define KMP_ARCH_MIPS 1
138#endif
139#elif defined __riscv && __riscv_xlen == 64
140#undef KMP_ARCH_RISCV64
141#define KMP_ARCH_RISCV64 1
142#endif
143#endif
144
145#if defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7R__) ||                     \
146    defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7VE__)
147#define KMP_ARCH_ARMV7 1
148#endif
149
150#if defined(KMP_ARCH_ARMV7) || defined(__ARM_ARCH_6__) ||                      \
151    defined(__ARM_ARCH_6J__) || defined(__ARM_ARCH_6K__) ||                    \
152    defined(__ARM_ARCH_6Z__) || defined(__ARM_ARCH_6T2__) ||                   \
153    defined(__ARM_ARCH_6ZK__)
154#define KMP_ARCH_ARMV6 1
155#endif
156
157#if defined(KMP_ARCH_ARMV6) || defined(__ARM_ARCH_5T__) ||                     \
158    defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) ||                   \
159    defined(__ARM_ARCH_5TEJ__)
160#define KMP_ARCH_ARMV5 1
161#endif
162
163#if defined(KMP_ARCH_ARMV5) || defined(__ARM_ARCH_4__) ||                      \
164    defined(__ARM_ARCH_4T__)
165#define KMP_ARCH_ARMV4 1
166#endif
167
168#if defined(KMP_ARCH_ARMV4) || defined(__ARM_ARCH_3__) ||                      \
169    defined(__ARM_ARCH_3M__)
170#define KMP_ARCH_ARMV3 1
171#endif
172
173#if defined(KMP_ARCH_ARMV3) || defined(__ARM_ARCH_2__)
174#define KMP_ARCH_ARMV2 1
175#endif
176
177#if defined(KMP_ARCH_ARMV2)
178#define KMP_ARCH_ARM 1
179#endif
180
181#if defined(__MIC__) || defined(__MIC2__)
182#define KMP_MIC 1
183#if __MIC2__ || __KNC__
184#define KMP_MIC1 0
185#define KMP_MIC2 1
186#else
187#define KMP_MIC1 1
188#define KMP_MIC2 0
189#endif
190#else
191#define KMP_MIC 0
192#define KMP_MIC1 0
193#define KMP_MIC2 0
194#endif
195
196/* Specify 32 bit architectures here */
197#define KMP_32_BIT_ARCH (KMP_ARCH_X86 || KMP_ARCH_ARM || KMP_ARCH_MIPS)
198
199// Platforms which support Intel(R) Many Integrated Core Architecture
200#define KMP_MIC_SUPPORTED                                                      \
201  ((KMP_ARCH_X86 || KMP_ARCH_X86_64) && (KMP_OS_LINUX || KMP_OS_WINDOWS))
202
203// TODO: Fixme - This is clever, but really fugly
204#if (1 !=                                                                      \
205     KMP_ARCH_X86 + KMP_ARCH_X86_64 + KMP_ARCH_ARM + KMP_ARCH_PPC64 +          \
206     KMP_ARCH_AARCH64 + KMP_ARCH_MIPS + KMP_ARCH_MIPS64 + KMP_ARCH_RISCV64)
207#error Unknown or unsupported architecture
208#endif
209
210#endif // KMP_PLATFORM_H
211