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 #    if defined(__NO_FPRS__)
 105 #      define LIB_ARCH_TUPLE "powerpc-linux-gnuspe"
 106 #    else
 107 #      define LIB_ARCH_TUPLE "powerpc-linux-gnu"
 108 #    endif
 109 #  else
 110 #    define native_architecture() ARCHITECTURE_PPC_LE
 111 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
 112 #  endif
 113 #elif defined(__ia64__)
 114 #  define native_architecture() ARCHITECTURE_IA64
 115 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
 116 #elif defined(__hppa64__)
 117 #  define native_architecture() ARCHITECTURE_PARISC64
 118 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 119 #elif defined(__hppa__)
 120 #  define native_architecture() ARCHITECTURE_PARISC
 121 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 122 #elif defined(__s390x__)
 123 #  define native_architecture() ARCHITECTURE_S390X
 124 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 125 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_S390
 126 #elif defined(__s390__)
 127 #  define native_architecture() ARCHITECTURE_S390
 128 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 129 #elif defined(__sparc__) && defined (__arch64__)
 130 #  define native_architecture() ARCHITECTURE_SPARC64
 131 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 132 #elif defined(__sparc__)
 133 #  define native_architecture() ARCHITECTURE_SPARC
 134 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 135 #elif defined(__mips64) && defined(__LP64__)
 136 #  if __BYTE_ORDER == __BIG_ENDIAN
 137 #    define native_architecture() ARCHITECTURE_MIPS64
 138 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabi64"
 139 #  else
 140 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 141 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabi64"
 142 #  endif
 143 #elif defined(__mips64)
 144 #  if __BYTE_ORDER == __BIG_ENDIAN
 145 #    define native_architecture() ARCHITECTURE_MIPS64
 146 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabin32"
 147 #  else
 148 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 149 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabin32"
 150 #  endif
 151 #elif defined(__mips__)
 152 #  if __BYTE_ORDER == __BIG_ENDIAN
 153 #    define native_architecture() ARCHITECTURE_MIPS
 154 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 155 #  else
 156 #    define native_architecture() ARCHITECTURE_MIPS_LE
 157 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 158 #  endif
 159 #elif defined(__alpha__)
 160 #  define native_architecture() ARCHITECTURE_ALPHA
 161 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 162 #elif defined(__aarch64__)
 163 #  if __BYTE_ORDER == __BIG_ENDIAN
 164 #    define native_architecture() ARCHITECTURE_ARM64_BE
 165 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 166 #  else
 167 #    define native_architecture() ARCHITECTURE_ARM64
 168 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 169 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_ARM
 170 #  endif
 171 #elif defined(__arm__)
 172 #  if __BYTE_ORDER == __BIG_ENDIAN
 173 #    define native_architecture() ARCHITECTURE_ARM_BE
 174 #    if defined(__ARM_EABI__)
 175 #      if defined(__ARM_PCS_VFP)
 176 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 177 #      else
 178 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 179 #      endif
 180 #    else
 181 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 182 #    endif
 183 #  else
 184 #    define native_architecture() ARCHITECTURE_ARM
 185 #    if defined(__ARM_EABI__)
 186 #      if defined(__ARM_PCS_VFP)
 187 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 188 #      else
 189 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 190 #      endif
 191 #    else
 192 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 193 #    endif
 194 #  endif
 195 #elif defined(__sh64__)
 196 #  define native_architecture() ARCHITECTURE_SH64
 197 #  error "Missing LIB_ARCH_TUPLE for SH64"
 198 #elif defined(__sh__)
 199 #  define native_architecture() ARCHITECTURE_SH
 200 #  define LIB_ARCH_TUPLE "sh4-linux-gnu"
 201 #elif defined(__m68k__)
 202 #  define native_architecture() ARCHITECTURE_M68K
 203 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 204 #elif defined(__tilegx__)
 205 #  define native_architecture() ARCHITECTURE_TILEGX
 206 #  define LIB_ARCH_TUPLE "tilegx-linux-gnu"
 207 #elif defined(__cris__)
 208 #  define native_architecture() ARCHITECTURE_CRIS
 209 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 210 #elif defined(__nios2__)
 211 #  define native_architecture() ARCHITECTURE_NIOS2
 212 #  define LIB_ARCH_TUPLE "nios2-linux-gnu"
 213 #elif defined(__riscv__) || defined(__riscv)
 214         /* __riscv__ is obsolete, remove in 2018 */
 215 #  if __SIZEOF_POINTER__ == 4
 216 #    define native_architecture() ARCHITECTURE_RISCV32
 217 #    define LIB_ARCH_TUPLE "riscv32-linux-gnu"
 218 #  elif __SIZEOF_POINTER__ == 8
 219 #    define native_architecture() ARCHITECTURE_RISCV64
 220 #    define LIB_ARCH_TUPLE "riscv64-linux-gnu"
 221 #  else
 222 #    error "Unrecognized riscv architecture variant"
 223 #  endif
 224 #else
 225 #  error "Please register your architecture here!"
 226 #endif
 227
 228 const char *architecture_to_string(int a) _const_;
 229 int architecture_from_string(const char *s) _pure_;