src/basic/architecture.h

   1 #pragma once
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2014 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <endian.h>
  23
  24 #include "macro.h"
  25 #include "util.h"
  26
  27 /* A cleaned up architecture definition. We don't want to get lost in
  28  * processor features, models, generations or even ABIs. Hence we
  29  * focus on general family, and distinguish word width and
  30  * endianness. */
  31
  32 enum {
  33         ARCHITECTURE_X86 = 0,
  34         ARCHITECTURE_X86_64,
  35         ARCHITECTURE_PPC,
  36         ARCHITECTURE_PPC_LE,
  37         ARCHITECTURE_PPC64,
  38         ARCHITECTURE_PPC64_LE,
  39         ARCHITECTURE_IA64,
  40         ARCHITECTURE_PARISC,
  41         ARCHITECTURE_PARISC64,
  42         ARCHITECTURE_S390,
  43         ARCHITECTURE_S390X,
  44         ARCHITECTURE_SPARC,
  45         ARCHITECTURE_SPARC64,
  46         ARCHITECTURE_MIPS,
  47         ARCHITECTURE_MIPS_LE,
  48         ARCHITECTURE_MIPS64,
  49         ARCHITECTURE_MIPS64_LE,
  50         ARCHITECTURE_ALPHA,
  51         ARCHITECTURE_ARM,
  52         ARCHITECTURE_ARM_BE,
  53         ARCHITECTURE_ARM64,
  54         ARCHITECTURE_ARM64_BE,
  55         ARCHITECTURE_SH,
  56         ARCHITECTURE_SH64,
  57         ARCHITECTURE_M68K,
  58         ARCHITECTURE_TILEGX,
  59         ARCHITECTURE_CRIS,
  60         ARCHITECTURE_NIOS2,
  61         ARCHITECTURE_RISCV32,
  62         ARCHITECTURE_RISCV64,
  63         _ARCHITECTURE_MAX,
  64         _ARCHITECTURE_INVALID = -1
  65 };
  66
  67 int uname_architecture(void);
  68
  69 /*
  70  * LIB_ARCH_TUPLE should resolve to the local library path
  71  * architecture tuple systemd is built for, according to the Debian
  72  * tuple list:
  73  *
  74  * https://wiki.debian.org/Multiarch/Tuples
  75  *
  76  * This is used in library search paths that should understand
  77  * Debian's paths on all distributions.
  78  */
  79
  80 #if defined(__x86_64__)
  81 #  define native_architecture() ARCHITECTURE_X86_64
  82 #  if defined(__ILP32__)
  83 #    define LIB_ARCH_TUPLE "x86_64-linux-gnux32"
  84 #  else
  85 #    define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  86 #  endif
  87 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_X86
  88 #elif defined(__i386__)
  89 #  define native_architecture() ARCHITECTURE_X86
  90 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  91 #elif defined(__powerpc64__)
  92 #  if __BYTE_ORDER == __BIG_ENDIAN
  93 #    define native_architecture() ARCHITECTURE_PPC64
  94 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  95 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC
  96 #  else
  97 #    define native_architecture() ARCHITECTURE_PPC64_LE
  98 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
  99 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC_LE
 100 #  endif
 101 #elif defined(__powerpc__)
 102 #  if __BYTE_ORDER == __BIG_ENDIAN
 103 #    define native_architecture() ARCHITECTURE_PPC
 104 #    define LIB_ARCH_TUPLE "powerpc-linux-gnu"
 105 #  else
 106 #    define native_architecture() ARCHITECTURE_PPC_LE
 107 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
 108 #  endif
 109 #elif defined(__ia64__)
 110 #  define native_architecture() ARCHITECTURE_IA64
 111 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
 112 #elif defined(__hppa64__)
 113 #  define native_architecture() ARCHITECTURE_PARISC64
 114 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 115 #elif defined(__hppa__)
 116 #  define native_architecture() ARCHITECTURE_PARISC
 117 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 118 #elif defined(__s390x__)
 119 #  define native_architecture() ARCHITECTURE_S390X
 120 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 121 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_S390
 122 #elif defined(__s390__)
 123 #  define native_architecture() ARCHITECTURE_S390
 124 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 125 #elif defined(__sparc__) && defined (__arch64__)
 126 #  define native_architecture() ARCHITECTURE_SPARC64
 127 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 128 #elif defined(__sparc__)
 129 #  define native_architecture() ARCHITECTURE_SPARC
 130 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 131 #elif defined(__mips64) && defined(__LP64__)
 132 #  if __BYTE_ORDER == __BIG_ENDIAN
 133 #    define native_architecture() ARCHITECTURE_MIPS64
 134 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabi64"
 135 #  else
 136 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 137 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabi64"
 138 #  endif
 139 #elif defined(__mips64)
 140 #  if __BYTE_ORDER == __BIG_ENDIAN
 141 #    define native_architecture() ARCHITECTURE_MIPS64
 142 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabin32"
 143 #  else
 144 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 145 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabin32"
 146 #  endif
 147 #elif defined(__mips__)
 148 #  if __BYTE_ORDER == __BIG_ENDIAN
 149 #    define native_architecture() ARCHITECTURE_MIPS
 150 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 151 #  else
 152 #    define native_architecture() ARCHITECTURE_MIPS_LE
 153 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 154 #  endif
 155 #elif defined(__alpha__)
 156 #  define native_architecture() ARCHITECTURE_ALPHA
 157 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 158 #elif defined(__aarch64__)
 159 #  if __BYTE_ORDER == __BIG_ENDIAN
 160 #    define native_architecture() ARCHITECTURE_ARM64_BE
 161 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 162 #  else
 163 #    define native_architecture() ARCHITECTURE_ARM64
 164 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 165 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_ARM
 166 #  endif
 167 #elif defined(__arm__)
 168 #  if __BYTE_ORDER == __BIG_ENDIAN
 169 #    define native_architecture() ARCHITECTURE_ARM_BE
 170 #    if defined(__ARM_EABI__)
 171 #      if defined(__ARM_PCS_VFP)
 172 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 173 #      else
 174 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 175 #      endif
 176 #    else
 177 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 178 #    endif
 179 #  else
 180 #    define native_architecture() ARCHITECTURE_ARM
 181 #    if defined(__ARM_EABI__)
 182 #      if defined(__ARM_PCS_VFP)
 183 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 184 #      else
 185 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 186 #      endif
 187 #    else
 188 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 189 #    endif
 190 #  endif
 191 #elif defined(__sh64__)
 192 #  define native_architecture() ARCHITECTURE_SH64
 193 #  error "Missing LIB_ARCH_TUPLE for SH64"
 194 #elif defined(__sh__)
 195 #  define native_architecture() ARCHITECTURE_SH
 196 #  define LIB_ARCH_TUPLE "sh4-linux-gnu"
 197 #elif defined(__m68k__)
 198 #  define native_architecture() ARCHITECTURE_M68K
 199 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 200 #elif defined(__tilegx__)
 201 #  define native_architecture() ARCHITECTURE_TILEGX
 202 #  define LIB_ARCH_TUPLE "tilegx-linux-gnu"
 203 #elif defined(__cris__)
 204 #  define native_architecture() ARCHITECTURE_CRIS
 205 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 206 #elif defined(__nios2__)
 207 #  define native_architecture() ARCHITECTURE_NIOS2
 208 #  define LIB_ARCH_TUPLE "nios2-linux-gnu"
 209 #elif defined(__riscv__) || defined(__riscv)
 210         /* __riscv__ is obsolete, remove in 2018 */
 211 #  if __SIZEOF_POINTER__ == 4
 212 #    define native_architecture() ARCHITECTURE_RISCV32
 213 #    define LIB_ARCH_TUPLE "riscv32-linux-gnu"
 214 #  elif __SIZEOF_POINTER__ == 8
 215 #    define native_architecture() ARCHITECTURE_RISCV64
 216 #    define LIB_ARCH_TUPLE "riscv64-linux-gnu"
 217 #  else
 218 #    error "Unrecognized riscv architecture variant"
 219 #  endif
 220 #else
 221 #  error "Please register your architecture here!"
 222 #endif
 223
 224 const char *architecture_to_string(int a) _const_;
 225 int architecture_from_string(const char *s) _pure_;