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_MAX,
  62         _ARCHITECTURE_INVALID = -1
  63 };
  64
  65 int uname_architecture(void);
  66
  67 /*
  68  * LIB_ARCH_TUPLE should resolve to the local library path
  69  * architecture tuple systemd is built for, according to the Debian
  70  * tuple list:
  71  *
  72  * https://wiki.debian.org/Multiarch/Tuples
  73  *
  74  * This is used in library search paths that should understand
  75  * Debian's paths on all distributions.
  76  */
  77
  78 #if defined(__x86_64__)
  79 #  define native_architecture() ARCHITECTURE_X86_64
  80 #  define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  81 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_X86
  82 #elif defined(__i386__)
  83 #  define native_architecture() ARCHITECTURE_X86
  84 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  85 #elif defined(__powerpc64__)
  86 #  if __BYTE_ORDER == __BIG_ENDIAN
  87 #    define native_architecture() ARCHITECTURE_PPC64
  88 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  89 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC
  90 #  else
  91 #    define native_architecture() ARCHITECTURE_PPC64_LE
  92 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
  93 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC_LE
  94 #  endif
  95 #elif defined(__powerpc__)
  96 #  if __BYTE_ORDER == __BIG_ENDIAN
  97 #    define native_architecture() ARCHITECTURE_PPC
  98 #    define LIB_ARCH_TUPLE "powerpc-linux-gnu"
  99 #  else
 100 #    define native_architecture() ARCHITECTURE_PPC_LE
 101 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
 102 #  endif
 103 #elif defined(__ia64__)
 104 #  define native_architecture() ARCHITECTURE_IA64
 105 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
 106 #elif defined(__hppa64__)
 107 #  define native_architecture() ARCHITECTURE_PARISC64
 108 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 109 #elif defined(__hppa__)
 110 #  define native_architecture() ARCHITECTURE_PARISC
 111 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 112 #elif defined(__s390x__)
 113 #  define native_architecture() ARCHITECTURE_S390X
 114 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 115 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_S390
 116 #elif defined(__s390__)
 117 #  define native_architecture() ARCHITECTURE_S390
 118 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 119 #elif defined(__sparc__) && defined (__arch64__)
 120 #  define native_architecture() ARCHITECTURE_SPARC64
 121 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 122 #elif defined(__sparc__)
 123 #  define native_architecture() ARCHITECTURE_SPARC
 124 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 125 #elif defined(__mips64__)
 126 #  if __BYTE_ORDER == __BIG_ENDIAN
 127 #    define native_architecture() ARCHITECTURE_MIPS64
 128 #    error "Missing LIB_ARCH_TUPLE for MIPS64"
 129 #  else
 130 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 131 #    error "Missing LIB_ARCH_TUPLE for MIPS64_LE"
 132 #  endif
 133 #elif defined(__mips__)
 134 #  if __BYTE_ORDER == __BIG_ENDIAN
 135 #    define native_architecture() ARCHITECTURE_MIPS
 136 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 137 #  else
 138 #    define native_architecture() ARCHITECTURE_MIPS_LE
 139 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 140 #  endif
 141 #elif defined(__alpha__)
 142 #  define native_architecture() ARCHITECTURE_ALPHA
 143 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 144 #elif defined(__aarch64__)
 145 #  if __BYTE_ORDER == __BIG_ENDIAN
 146 #    define native_architecture() ARCHITECTURE_ARM64_BE
 147 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 148 #  else
 149 #    define native_architecture() ARCHITECTURE_ARM64
 150 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 151 #  endif
 152 #elif defined(__arm__)
 153 #  if __BYTE_ORDER == __BIG_ENDIAN
 154 #    define native_architecture() ARCHITECTURE_ARM_BE
 155 #    if defined(__ARM_EABI__)
 156 #      if defined(__ARM_PCS_VFP)
 157 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 158 #      else
 159 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 160 #      endif
 161 #    else
 162 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 163 #    endif
 164 #  else
 165 #    define native_architecture() ARCHITECTURE_ARM
 166 #    if defined(__ARM_EABI__)
 167 #      if defined(__ARM_PCS_VFP)
 168 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 169 #      else
 170 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 171 #      endif
 172 #    else
 173 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 174 #    endif
 175 #  endif
 176 #elif defined(__sh64__)
 177 #  define native_architecture() ARCHITECTURE_SH64
 178 #  error "Missing LIB_ARCH_TUPLE for SH64"
 179 #elif defined(__sh__)
 180 #  define native_architecture() ARCHITECTURE_SH
 181 #  define LIB_ARCH_TUPLE "sh4-linux-gnu"
 182 #elif defined(__m68k__)
 183 #  define native_architecture() ARCHITECTURE_M68K
 184 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 185 #elif defined(__tilegx__)
 186 #  define native_architecture() ARCHITECTURE_TILEGX
 187 #  error "Missing LIB_ARCH_TUPLE for TILEGX"
 188 #elif defined(__cris__)
 189 #  define native_architecture() ARCHITECTURE_CRIS
 190 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 191 #elif defined(__nios2__)
 192 #  define native_architecture() ARCHITECTURE_NIOS2
 193 #  define LIB_ARCH_TUPLE "nios2-linux-gnu"
 194 #else
 195 #  error "Please register your architecture here!"
 196 #endif
 197
 198 const char *architecture_to_string(int a) _const_;
 199 int architecture_from_string(const char *s) _pure_;