openmp/runtime/src/kmp_platform.h

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