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 #  define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  83 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_X86
  84 #elif defined(__i386__)
  85 #  define native_architecture() ARCHITECTURE_X86
  86 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  87 #elif defined(__powerpc64__)
  88 #  if __BYTE_ORDER == __BIG_ENDIAN
  89 #    define native_architecture() ARCHITECTURE_PPC64
  90 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  91 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC
  92 #  else
  93 #    define native_architecture() ARCHITECTURE_PPC64_LE
  94 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
  95 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC_LE
  96 #  endif
  97 #elif defined(__powerpc__)
  98 #  if __BYTE_ORDER == __BIG_ENDIAN
  99 #    define native_architecture() ARCHITECTURE_PPC
 100 #    define LIB_ARCH_TUPLE "powerpc-linux-gnu"
 101 #  else
 102 #    define native_architecture() ARCHITECTURE_PPC_LE
 103 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
 104 #  endif
 105 #elif defined(__ia64__)
 106 #  define native_architecture() ARCHITECTURE_IA64
 107 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
 108 #elif defined(__hppa64__)
 109 #  define native_architecture() ARCHITECTURE_PARISC64
 110 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 111 #elif defined(__hppa__)
 112 #  define native_architecture() ARCHITECTURE_PARISC
 113 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 114 #elif defined(__s390x__)
 115 #  define native_architecture() ARCHITECTURE_S390X
 116 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 117 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_S390
 118 #elif defined(__s390__)
 119 #  define native_architecture() ARCHITECTURE_S390
 120 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 121 #elif defined(__sparc__) && defined (__arch64__)
 122 #  define native_architecture() ARCHITECTURE_SPARC64
 123 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 124 #elif defined(__sparc__)
 125 #  define native_architecture() ARCHITECTURE_SPARC
 126 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 127 #elif defined(__mips64__)
 128 #  if __BYTE_ORDER == __BIG_ENDIAN
 129 #    define native_architecture() ARCHITECTURE_MIPS64
 130 #    error "Missing LIB_ARCH_TUPLE for MIPS64"
 131 #  else
 132 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 133 #    error "Missing LIB_ARCH_TUPLE for MIPS64_LE"
 134 #  endif
 135 #elif defined(__mips__)
 136 #  if __BYTE_ORDER == __BIG_ENDIAN
 137 #    define native_architecture() ARCHITECTURE_MIPS
 138 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 139 #  else
 140 #    define native_architecture() ARCHITECTURE_MIPS_LE
 141 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 142 #  endif
 143 #elif defined(__alpha__)
 144 #  define native_architecture() ARCHITECTURE_ALPHA
 145 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 146 #elif defined(__aarch64__)
 147 #  if __BYTE_ORDER == __BIG_ENDIAN
 148 #    define native_architecture() ARCHITECTURE_ARM64_BE
 149 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 150 #  else
 151 #    define native_architecture() ARCHITECTURE_ARM64
 152 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 153 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_ARM
 154 #  endif
 155 #elif defined(__arm__)
 156 #  if __BYTE_ORDER == __BIG_ENDIAN
 157 #    define native_architecture() ARCHITECTURE_ARM_BE
 158 #    if defined(__ARM_EABI__)
 159 #      if defined(__ARM_PCS_VFP)
 160 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 161 #      else
 162 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 163 #      endif
 164 #    else
 165 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 166 #    endif
 167 #  else
 168 #    define native_architecture() ARCHITECTURE_ARM
 169 #    if defined(__ARM_EABI__)
 170 #      if defined(__ARM_PCS_VFP)
 171 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 172 #      else
 173 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 174 #      endif
 175 #    else
 176 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 177 #    endif
 178 #  endif
 179 #elif defined(__sh64__)
 180 #  define native_architecture() ARCHITECTURE_SH64
 181 #  error "Missing LIB_ARCH_TUPLE for SH64"
 182 #elif defined(__sh__)
 183 #  define native_architecture() ARCHITECTURE_SH
 184 #  define LIB_ARCH_TUPLE "sh4-linux-gnu"
 185 #elif defined(__m68k__)
 186 #  define native_architecture() ARCHITECTURE_M68K
 187 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 188 #elif defined(__tilegx__)
 189 #  define native_architecture() ARCHITECTURE_TILEGX
 190 #  error "Missing LIB_ARCH_TUPLE for TILEGX"
 191 #elif defined(__cris__)
 192 #  define native_architecture() ARCHITECTURE_CRIS
 193 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 194 #elif defined(__nios2__)
 195 #  define native_architecture() ARCHITECTURE_NIOS2
 196 #  define LIB_ARCH_TUPLE "nios2-linux-gnu"
 197 #elif defined(__riscv__)
 198 #  if __SIZEOF_POINTER__ == 4
 199 #    define native_architecture() ARCHITECTURE_RISCV32
 200 #    define LIB_ARCH_TUPLE "riscv32-linux-gnu"
 201 #  elif __SIZEOF_POINTER__ == 8
 202 #    define native_architecture() ARCHITECTURE_RISCV64
 203 #    define LIB_ARCH_TUPLE "riscv64-linux-gnu"
 204 #  else
 205 #    error "Unrecognized riscv architecture variant"
 206 #  endif
 207 #else
 208 #  error "Please register your architecture here!"
 209 #endif
 210
 211 const char *architecture_to_string(int a) _const_;
 212 int architecture_from_string(const char *s) _pure_;