src/basic/architecture.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2014 Lennart Poettering
   8
   9   systemd is free software; you can redistribute it and/or modify it
  10   under the terms of the GNU Lesser General Public License as published by
  11   the Free Software Foundation; either version 2.1 of the License, or
  12   (at your option) any later version.
  13
  14   systemd is distributed in the hope that it will be useful, but
  15   WITHOUT ANY WARRANTY; without even the implied warranty of
  16   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  17   Lesser General Public License for more details.
  18
  19   You should have received a copy of the GNU Lesser General Public License
  20   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  21 ***/
  22
  23 #include <endian.h>
  24
  25 #include "macro.h"
  26 #include "util.h"
  27
  28 /* A cleaned up architecture definition. We don't want to get lost in
  29  * processor features, models, generations or even ABIs. Hence we
  30  * focus on general family, and distinguish word width and
  31  * endianness. */
  32
  33 enum {
  34         ARCHITECTURE_X86 = 0,
  35         ARCHITECTURE_X86_64,
  36         ARCHITECTURE_PPC,
  37         ARCHITECTURE_PPC_LE,
  38         ARCHITECTURE_PPC64,
  39         ARCHITECTURE_PPC64_LE,
  40         ARCHITECTURE_IA64,
  41         ARCHITECTURE_PARISC,
  42         ARCHITECTURE_PARISC64,
  43         ARCHITECTURE_S390,
  44         ARCHITECTURE_S390X,
  45         ARCHITECTURE_SPARC,
  46         ARCHITECTURE_SPARC64,
  47         ARCHITECTURE_MIPS,
  48         ARCHITECTURE_MIPS_LE,
  49         ARCHITECTURE_MIPS64,
  50         ARCHITECTURE_MIPS64_LE,
  51         ARCHITECTURE_ALPHA,
  52         ARCHITECTURE_ARM,
  53         ARCHITECTURE_ARM_BE,
  54         ARCHITECTURE_ARM64,
  55         ARCHITECTURE_ARM64_BE,
  56         ARCHITECTURE_SH,
  57         ARCHITECTURE_SH64,
  58         ARCHITECTURE_M68K,
  59         ARCHITECTURE_TILEGX,
  60         ARCHITECTURE_CRIS,
  61         ARCHITECTURE_NIOS2,
  62         ARCHITECTURE_RISCV32,
  63         ARCHITECTURE_RISCV64,
  64         ARCHITECTURE_ARC,
  65         ARCHITECTURE_ARC_BE,
  66         _ARCHITECTURE_MAX,
  67         _ARCHITECTURE_INVALID = -1
  68 };
  69
  70 int uname_architecture(void);
  71
  72 /*
  73  * LIB_ARCH_TUPLE should resolve to the local library path
  74  * architecture tuple systemd is built for, according to the Debian
  75  * tuple list:
  76  *
  77  * https://wiki.debian.org/Multiarch/Tuples
  78  *
  79  * This is used in library search paths that should understand
  80  * Debian's paths on all distributions.
  81  */
  82
  83 #if defined(__x86_64__)
  84 #  define native_architecture() ARCHITECTURE_X86_64
  85 #  if defined(__ILP32__)
  86 #    define LIB_ARCH_TUPLE "x86_64-linux-gnux32"
  87 #  else
  88 #    define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  89 #  endif
  90 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_X86
  91 #elif defined(__i386__)
  92 #  define native_architecture() ARCHITECTURE_X86
  93 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  94 #elif defined(__powerpc64__)
  95 #  if __BYTE_ORDER == __BIG_ENDIAN
  96 #    define native_architecture() ARCHITECTURE_PPC64
  97 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  98 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC
  99 #  else
 100 #    define native_architecture() ARCHITECTURE_PPC64_LE
 101 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
 102 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC_LE
 103 #  endif
 104 #elif defined(__powerpc__)
 105 #  if __BYTE_ORDER == __BIG_ENDIAN
 106 #    define native_architecture() ARCHITECTURE_PPC
 107 #    if defined(__NO_FPRS__)
 108 #      define LIB_ARCH_TUPLE "powerpc-linux-gnuspe"
 109 #    else
 110 #      define LIB_ARCH_TUPLE "powerpc-linux-gnu"
 111 #    endif
 112 #  else
 113 #    define native_architecture() ARCHITECTURE_PPC_LE
 114 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
 115 #  endif
 116 #elif defined(__ia64__)
 117 #  define native_architecture() ARCHITECTURE_IA64
 118 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
 119 #elif defined(__hppa64__)
 120 #  define native_architecture() ARCHITECTURE_PARISC64
 121 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 122 #elif defined(__hppa__)
 123 #  define native_architecture() ARCHITECTURE_PARISC
 124 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 125 #elif defined(__s390x__)
 126 #  define native_architecture() ARCHITECTURE_S390X
 127 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 128 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_S390
 129 #elif defined(__s390__)
 130 #  define native_architecture() ARCHITECTURE_S390
 131 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 132 #elif defined(__sparc__) && defined (__arch64__)
 133 #  define native_architecture() ARCHITECTURE_SPARC64
 134 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 135 #elif defined(__sparc__)
 136 #  define native_architecture() ARCHITECTURE_SPARC
 137 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 138 #elif defined(__mips64) && defined(__LP64__)
 139 #  if __BYTE_ORDER == __BIG_ENDIAN
 140 #    define native_architecture() ARCHITECTURE_MIPS64
 141 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabi64"
 142 #  else
 143 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 144 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabi64"
 145 #  endif
 146 #elif defined(__mips64)
 147 #  if __BYTE_ORDER == __BIG_ENDIAN
 148 #    define native_architecture() ARCHITECTURE_MIPS64
 149 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabin32"
 150 #  else
 151 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 152 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabin32"
 153 #  endif
 154 #elif defined(__mips__)
 155 #  if __BYTE_ORDER == __BIG_ENDIAN
 156 #    define native_architecture() ARCHITECTURE_MIPS
 157 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 158 #  else
 159 #    define native_architecture() ARCHITECTURE_MIPS_LE
 160 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 161 #  endif
 162 #elif defined(__alpha__)
 163 #  define native_architecture() ARCHITECTURE_ALPHA
 164 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 165 #elif defined(__aarch64__)
 166 #  if __BYTE_ORDER == __BIG_ENDIAN
 167 #    define native_architecture() ARCHITECTURE_ARM64_BE
 168 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 169 #  else
 170 #    define native_architecture() ARCHITECTURE_ARM64
 171 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 172 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_ARM
 173 #  endif
 174 #elif defined(__arm__)
 175 #  if __BYTE_ORDER == __BIG_ENDIAN
 176 #    define native_architecture() ARCHITECTURE_ARM_BE
 177 #    if defined(__ARM_EABI__)
 178 #      if defined(__ARM_PCS_VFP)
 179 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 180 #      else
 181 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 182 #      endif
 183 #    else
 184 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 185 #    endif
 186 #  else
 187 #    define native_architecture() ARCHITECTURE_ARM
 188 #    if defined(__ARM_EABI__)
 189 #      if defined(__ARM_PCS_VFP)
 190 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 191 #      else
 192 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 193 #      endif
 194 #    else
 195 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 196 #    endif
 197 #  endif
 198 #elif defined(__sh64__)
 199 #  define native_architecture() ARCHITECTURE_SH64
 200 #  error "Missing LIB_ARCH_TUPLE for SH64"
 201 #elif defined(__sh__)
 202 #  define native_architecture() ARCHITECTURE_SH
 203 #  if defined(__SH1__)
 204 #    define LIB_ARCH_TUPLE "sh1-linux-gnu"
 205 #  elif defined(__SH2__)
 206 #    define LIB_ARCH_TUPLE "sh2-linux-gnu"
 207 #  elif defined(__SH2A__)
 208 #    define LIB_ARCH_TUPLE "sh2a-linux-gnu"
 209 #  elif defined(__SH2E__)
 210 #    define LIB_ARCH_TUPLE "sh2e-linux-gnu"
 211 #  elif defined(__SH3__)
 212 #    define LIB_ARCH_TUPLE "sh3-linux-gnu"
 213 #  elif defined(__SH3E__)
 214 #    define LIB_ARCH_TUPLE "sh3e-linux-gnu"
 215 #  elif defined(__SH4__) && !defined(__SH4A__)
 216 #    define LIB_ARCH_TUPLE "sh4-linux-gnu"
 217 #  elif defined(__SH4A__)
 218 #    define LIB_ARCH_TUPLE "sh4a-linux-gnu"
 219 #  endif
 220 #elif defined(__m68k__)
 221 #  define native_architecture() ARCHITECTURE_M68K
 222 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 223 #elif defined(__tilegx__)
 224 #  define native_architecture() ARCHITECTURE_TILEGX
 225 #  define LIB_ARCH_TUPLE "tilegx-linux-gnu"
 226 #elif defined(__cris__)
 227 #  define native_architecture() ARCHITECTURE_CRIS
 228 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 229 #elif defined(__nios2__)
 230 #  define native_architecture() ARCHITECTURE_NIOS2
 231 #  define LIB_ARCH_TUPLE "nios2-linux-gnu"
 232 #elif defined(__riscv__) || defined(__riscv)
 233         /* __riscv__ is obsolete, remove in 2018 */
 234 #  if __SIZEOF_POINTER__ == 4
 235 #    define native_architecture() ARCHITECTURE_RISCV32
 236 #    define LIB_ARCH_TUPLE "riscv32-linux-gnu"
 237 #  elif __SIZEOF_POINTER__ == 8
 238 #    define native_architecture() ARCHITECTURE_RISCV64
 239 #    define LIB_ARCH_TUPLE "riscv64-linux-gnu"
 240 #  else
 241 #    error "Unrecognized riscv architecture variant"
 242 #  endif
 243 #elif defined(__arc__)
 244 #  if __BYTE_ORDER == __BIG_ENDIAN
 245 #    define native_architecture() ARCHITECTURE_ARC_BE
 246 #    define LIB_ARCH_TUPLE "arceb-linux"
 247 #  else
 248 #    define native_architecture() ARCHITECTURE_ARC
 249 #    define LIB_ARCH_TUPLE "arc-linux"
 250 #  endif
 251 #else
 252 #  error "Please register your architecture here!"
 253 #endif
 254
 255 const char *architecture_to_string(int a) _const_;
 256 int architecture_from_string(const char *s) _pure_;