include/urcu/arch.h

   1 /*
   2  * urcu/arch.h
   3  *
   4  * Copyright (c) 2020 Michael Jeanson <michael.jeanson@efficios.com>
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  19  */
  20
  21 #ifndef _URCU_ARCH_H
  22 #define _URCU_ARCH_H
  23
  24 /*
  25  * Architecture detection using compiler defines.
  26  *
  27  * The following defines are used internally for architecture specific code.
  28  *
  29  * URCU_ARCH_X86 : All x86 variants 32 and 64 bits
  30  *   URCU_ARCH_I386 : Specific to the i386
  31  *   URCU_ARCH_AMD64 : All 64 bits x86 variants
  32  *   URCU_ARCH_K1OM : Specific to the Xeon Phi / MIC
  33  *
  34  * URCU_ARCH_PPC : All PowerPC variants 32 and 64 bits
  35  *   URCU_ARCH_PPC64 : Specific to 64 bits variants
  36  *
  37  * URCU_ARCH_S390 : All IBM s390 / s390x variants
  38  *
  39  * URCU_ARCH_SPARC64 : All Sun SPARC variants
  40  *
  41  * URCU_ARCH_ALPHA : All DEC Alpha variants
  42  * URCU_ARCH_IA64 : All Intel Itanium variants
  43  * URCU_ARCH_ARM : All ARM 32 bits variants
  44  *   URCU_ARCH_ARMV7 : All ARMv7 ISA variants
  45  * URCU_ARCH_AARCH64 : All ARM 64 bits variants
  46  * URCU_ARCH_MIPS : All MIPS variants
  47  * URCU_ARCH_NIOS2 : All Intel / Altera NIOS II variants
  48  * URCU_ARCH_TILE : All Tilera TILE variants
  49  * URCU_ARCH_HPPA : All HP PA-RISC variants
  50  * URCU_ARCH_M68K : All Motorola 68000 variants
  51  * URCU_ARCH_RISCV : All RISC-V variants
  52  */
  53
  54 #if (defined(__INTEL_OFFLOAD) || defined(__TARGET_ARCH_MIC) || defined(__MIC__))
  55
  56 #define URCU_ARCH_X86 1
  57 #define URCU_ARCH_AMD64 1
  58 #define URCU_ARCH_K1OM 1
  59 #include <urcu/arch/x86.h>
  60
  61 #elif (defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64))
  62
  63 #define URCU_ARCH_X86 1
  64 #define URCU_ARCH_AMD64 1
  65 #include <urcu/arch/x86.h>
  66
  67 #elif (defined(__i386__) || defined(__i386))
  68
  69 #define URCU_ARCH_X86 1
  70
  71 /*
  72  * URCU_ARCH_X86_NO_CAS enables a compat layer that will detect the presence of
  73  * the cmpxchg instructions at runtime and provide a compat mode based on a
  74  * pthread mutex when it isn't.
  75  *
  76  * __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4 was introduced in GCC 4.3 and Clang 3.3,
  77  * building with older compilers will result in the compat layer always being
  78  * used on x86-32.
  79  */
  80 #ifndef __GCC_HAVE_SYNC_COMPARE_AND_SWAP_4
  81 #define URCU_ARCH_X86_NO_CAS 1
  82 /* For backwards compat */
  83 #define URCU_ARCH_I386 1
  84 #endif
  85
  86 #include <urcu/arch/x86.h>
  87
  88 #elif (defined(__powerpc64__) || defined(__ppc64__))
  89
  90 #define URCU_ARCH_PPC 1
  91 #define URCU_ARCH_PPC64 1
  92 #include <urcu/arch/ppc.h>
  93
  94 #elif (defined(__powerpc__) || defined(__powerpc) || defined(__ppc__))
  95
  96 #define URCU_ARCH_PPC 1
  97 #include <urcu/arch/ppc.h>
  98
  99 #elif (defined(__s390__) || defined(__s390x__) || defined(__zarch__))
 100
 101 #define URCU_ARCH_S390 1
 102 #include <urcu/arch/s390.h>
 103
 104 #elif (defined(__sparc__) || defined(__sparc) || defined(__sparc64__))
 105
 106 #define URCU_ARCH_SPARC64 1
 107 #include <urcu/arch/sparc64.h>
 108
 109 #elif (defined(__alpha__) || defined(__alpha))
 110
 111 #define URCU_ARCH_ALPHA 1
 112 #include <urcu/arch/alpha.h>
 113
 114 #elif (defined(__ia64__) || defined(__ia64))
 115
 116 #define URCU_ARCH_IA64 1
 117 #include <urcu/arch/ia64.h>
 118
 119 #elif (defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7__))
 120
 121 #define URCU_ARCH_ARMV7 1
 122 #define URCU_ARCH_ARM 1
 123 #include <urcu/arch/arm.h>
 124
 125 #elif (defined(__arm__) || defined(__arm))
 126
 127 #define URCU_ARCH_ARM 1
 128 #include <urcu/arch/arm.h>
 129
 130 #elif defined(__aarch64__)
 131
 132 #define URCU_ARCH_AARCH64 1
 133 #include <urcu/arch/aarch64.h>
 134
 135 #elif (defined(__mips__) || defined(__mips))
 136
 137 #define URCU_ARCH_MIPS 1
 138 #include <urcu/arch/mips.h>
 139
 140 #elif (defined(__nios2__) || defined(__nios2))
 141
 142 #define URCU_ARCH_NIOS2 1
 143 #include <urcu/arch/nios2.h>
 144
 145 #elif defined(__tilegx__)
 146 /*
 147  * URCU has only been tested on the TileGx architecture. For other Tile*
 148  * architectures, please run the tests first and report the results to the
 149  * maintainer so that proper support can be added.
 150  */
 151
 152 #define URCU_ARCH_TILE 1
 153 #include <urcu/arch/tile.h>
 154
 155 #elif (defined(__hppa__) || defined(__HPPA__) || defined(__hppa))
 156
 157 #define URCU_ARCH_HPPA 1
 158 #include <urcu/arch/hppa.h>
 159
 160 #elif defined(__m68k__)
 161
 162 #define URCU_ARCH_M68K 1
 163 #include <urcu/arch/m68k.h>
 164
 165 #elif defined(__riscv)
 166
 167 #define URCU_ARCH_RISCV 1
 168 #include <urcu/arch/riscv.h>
 169
 170 #else
 171 #error "Cannot build: unrecognized architecture, see <urcu/arch.h>."
 172 #endif
 173
 174
 175 #endif /* _URCU_ARCH_H */