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_ARC,
  64         ARCHITECTURE_ARC_BE,
  65         _ARCHITECTURE_MAX,
  66         _ARCHITECTURE_INVALID = -1
  67 };
  68
  69 int uname_architecture(void);
  70
  71 /*
  72  * LIB_ARCH_TUPLE should resolve to the local library path
  73  * architecture tuple systemd is built for, according to the Debian
  74  * tuple list:
  75  *
  76  * https://wiki.debian.org/Multiarch/Tuples
  77  *
  78  * This is used in library search paths that should understand
  79  * Debian's paths on all distributions.
  80  */
  81
  82 #if defined(__x86_64__)
  83 #  define native_architecture() ARCHITECTURE_X86_64
  84 #  if defined(__ILP32__)
  85 #    define LIB_ARCH_TUPLE "x86_64-linux-gnux32"
  86 #  else
  87 #    define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  88 #  endif
  89 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_X86
  90 #elif defined(__i386__)
  91 #  define native_architecture() ARCHITECTURE_X86
  92 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  93 #elif defined(__powerpc64__)
  94 #  if __BYTE_ORDER == __BIG_ENDIAN
  95 #    define native_architecture() ARCHITECTURE_PPC64
  96 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  97 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC
  98 #  else
  99 #    define native_architecture() ARCHITECTURE_PPC64_LE
 100 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
 101 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC_LE
 102 #  endif
 103 #elif defined(__powerpc__)
 104 #  if __BYTE_ORDER == __BIG_ENDIAN
 105 #    define native_architecture() ARCHITECTURE_PPC
 106 #    if defined(__NO_FPRS__)
 107 #      define LIB_ARCH_TUPLE "powerpc-linux-gnuspe"
 108 #    else
 109 #      define LIB_ARCH_TUPLE "powerpc-linux-gnu"
 110 #    endif
 111 #  else
 112 #    define native_architecture() ARCHITECTURE_PPC_LE
 113 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
 114 #  endif
 115 #elif defined(__ia64__)
 116 #  define native_architecture() ARCHITECTURE_IA64
 117 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
 118 #elif defined(__hppa64__)
 119 #  define native_architecture() ARCHITECTURE_PARISC64
 120 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 121 #elif defined(__hppa__)
 122 #  define native_architecture() ARCHITECTURE_PARISC
 123 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 124 #elif defined(__s390x__)
 125 #  define native_architecture() ARCHITECTURE_S390X
 126 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 127 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_S390
 128 #elif defined(__s390__)
 129 #  define native_architecture() ARCHITECTURE_S390
 130 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 131 #elif defined(__sparc__) && defined (__arch64__)
 132 #  define native_architecture() ARCHITECTURE_SPARC64
 133 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 134 #elif defined(__sparc__)
 135 #  define native_architecture() ARCHITECTURE_SPARC
 136 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 137 #elif defined(__mips64) && defined(__LP64__)
 138 #  if __BYTE_ORDER == __BIG_ENDIAN
 139 #    define native_architecture() ARCHITECTURE_MIPS64
 140 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabi64"
 141 #  else
 142 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 143 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabi64"
 144 #  endif
 145 #elif defined(__mips64)
 146 #  if __BYTE_ORDER == __BIG_ENDIAN
 147 #    define native_architecture() ARCHITECTURE_MIPS64
 148 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabin32"
 149 #  else
 150 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 151 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabin32"
 152 #  endif
 153 #elif defined(__mips__)
 154 #  if __BYTE_ORDER == __BIG_ENDIAN
 155 #    define native_architecture() ARCHITECTURE_MIPS
 156 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 157 #  else
 158 #    define native_architecture() ARCHITECTURE_MIPS_LE
 159 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 160 #  endif
 161 #elif defined(__alpha__)
 162 #  define native_architecture() ARCHITECTURE_ALPHA
 163 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 164 #elif defined(__aarch64__)
 165 #  if __BYTE_ORDER == __BIG_ENDIAN
 166 #    define native_architecture() ARCHITECTURE_ARM64_BE
 167 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 168 #  else
 169 #    define native_architecture() ARCHITECTURE_ARM64
 170 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 171 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_ARM
 172 #  endif
 173 #elif defined(__arm__)
 174 #  if __BYTE_ORDER == __BIG_ENDIAN
 175 #    define native_architecture() ARCHITECTURE_ARM_BE
 176 #    if defined(__ARM_EABI__)
 177 #      if defined(__ARM_PCS_VFP)
 178 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 179 #      else
 180 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 181 #      endif
 182 #    else
 183 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 184 #    endif
 185 #  else
 186 #    define native_architecture() ARCHITECTURE_ARM
 187 #    if defined(__ARM_EABI__)
 188 #      if defined(__ARM_PCS_VFP)
 189 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 190 #      else
 191 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 192 #      endif
 193 #    else
 194 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 195 #    endif
 196 #  endif
 197 #elif defined(__sh64__)
 198 #  define native_architecture() ARCHITECTURE_SH64
 199 #  error "Missing LIB_ARCH_TUPLE for SH64"
 200 #elif defined(__sh__)
 201 #  define native_architecture() ARCHITECTURE_SH
 202 #  if defined(__SH1__)
 203 #    define LIB_ARCH_TUPLE "sh1-linux-gnu"
 204 #  elif defined(__SH2__)
 205 #    define LIB_ARCH_TUPLE "sh2-linux-gnu"
 206 #  elif defined(__SH2A__)
 207 #    define LIB_ARCH_TUPLE "sh2a-linux-gnu"
 208 #  elif defined(__SH2E__)
 209 #    define LIB_ARCH_TUPLE "sh2e-linux-gnu"
 210 #  elif defined(__SH3__)
 211 #    define LIB_ARCH_TUPLE "sh3-linux-gnu"
 212 #  elif defined(__SH3E__)
 213 #    define LIB_ARCH_TUPLE "sh3e-linux-gnu"
 214 #  elif defined(__SH4__) && !defined(__SH4A__)
 215 #    define LIB_ARCH_TUPLE "sh4-linux-gnu"
 216 #  elif defined(__SH4A__)
 217 #    define LIB_ARCH_TUPLE "sh4a-linux-gnu"
 218 #  endif
 219 #elif defined(__m68k__)
 220 #  define native_architecture() ARCHITECTURE_M68K
 221 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 222 #elif defined(__tilegx__)
 223 #  define native_architecture() ARCHITECTURE_TILEGX
 224 #  define LIB_ARCH_TUPLE "tilegx-linux-gnu"
 225 #elif defined(__cris__)
 226 #  define native_architecture() ARCHITECTURE_CRIS
 227 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 228 #elif defined(__nios2__)
 229 #  define native_architecture() ARCHITECTURE_NIOS2
 230 #  define LIB_ARCH_TUPLE "nios2-linux-gnu"
 231 #elif defined(__riscv__) || defined(__riscv)
 232         /* __riscv__ is obsolete, remove in 2018 */
 233 #  if __SIZEOF_POINTER__ == 4
 234 #    define native_architecture() ARCHITECTURE_RISCV32
 235 #    define LIB_ARCH_TUPLE "riscv32-linux-gnu"
 236 #  elif __SIZEOF_POINTER__ == 8
 237 #    define native_architecture() ARCHITECTURE_RISCV64
 238 #    define LIB_ARCH_TUPLE "riscv64-linux-gnu"
 239 #  else
 240 #    error "Unrecognized riscv architecture variant"
 241 #  endif
 242 #elif defined(__arc__)
 243 #  if __BYTE_ORDER == __BIG_ENDIAN
 244 #    define native_architecture() ARCHITECTURE_ARC_BE
 245 #    define LIB_ARCH_TUPLE "arceb-linux"
 246 #  else
 247 #    define native_architecture() ARCHITECTURE_ARC
 248 #    define LIB_ARCH_TUPLE "arc-linux"
 249 #  endif
 250 #else
 251 #  error "Please register your architecture here!"
 252 #endif
 253
 254 const char *architecture_to_string(int a) _const_;
 255 int architecture_from_string(const char *s) _pure_;