src/shared/architecture.h

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 #pragma once
   4
   5 /***
   6   This file is part of systemd.
   7
   8   Copyright 2014 Lennart Poettering
   9
  10   systemd is free software; you can redistribute it and/or modify it
  11   under the terms of the GNU Lesser General Public License as published by
  12   the Free Software Foundation; either version 2.1 of the License, or
  13   (at your option) any later version.
  14
  15   systemd is distributed in the hope that it will be useful, but
  16   WITHOUT ANY WARRANTY; without even the implied warranty of
  17   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  18   Lesser General Public License for more details.
  19
  20   You should have received a copy of the GNU Lesser General Public License
  21   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  22 ***/
  23
  24 #include <endian.h>
  25
  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 distuignish 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_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 #elif defined(__i386__)
  82 #  define native_architecture() ARCHITECTURE_X86
  83 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  84 #elif defined(__powerpc64__)
  85 #  if __BYTE_ORDER == __BIG_ENDIAN
  86 #    define native_architecture() ARCHITECTURE_PPC64
  87 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  88 #  else
  89 #    define native_architecture() ARCHITECTURE_PPC64_LE
  90 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
  91 #  endif
  92 #elif defined(__powerpc__)
  93 #  if __BYTE_ORDER == __BIG_ENDIAN
  94 #    define native_architecture() ARCHITECTURE_PPC
  95 #    define LIB_ARCH_TUPLE "powerpc-linux-gnu"
  96 #  else
  97 #    define native_architecture() ARCHITECTURE_PPC_LE
  98 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
  99 #  endif
 100 #elif defined(__ia64__)
 101 #  define native_architecture() ARCHITECTURE_IA64
 102 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
 103 #elif defined(__hppa64__)
 104 #  define native_architecture() ARCHITECTURE_PARISC64
 105 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 106 #elif defined(__hppa__)
 107 #  define native_architecture() ARCHITECTURE_PARISC
 108 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 109 #elif defined(__s390x__)
 110 #  define native_architecture() ARCHITECTURE_S390X
 111 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 112 #elif defined(__s390__)
 113 #  define native_architecture() ARCHITECTURE_S390
 114 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 115 #elif defined(__sparc64__)
 116 #  define native_architecture() ARCHITECTURE_SPARC64
 117 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 118 #elif defined(__sparc__)
 119 #  define native_architecture() ARCHITECTURE_SPARC
 120 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 121 #elif defined(__mips64__)
 122 #  if __BYTE_ORDER == __BIG_ENDIAN
 123 #    define native_architecture() ARCHITECTURE_MIPS64
 124 #    error "Missing LIB_ARCH_TUPLE for MIPS64"
 125 #  else
 126 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 127 #    error "Missing LIB_ARCH_TUPLE for MIPS64_LE"
 128 #  endif
 129 #elif defined(__mips__)
 130 #  if __BYTE_ORDER == __BIG_ENDIAN
 131 #    define native_architecture() ARCHITECTURE_MIPS
 132 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 133 #  else
 134 #    define native_architecture() ARCHITECTURE_MIPS_LE
 135 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 136 #  endif
 137 #elif defined(__alpha__)
 138 #  define native_architecture() ARCHITECTURE_ALPHA
 139 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 140 #elif defined(__aarch64__)
 141 #  if __BYTE_ORDER == __BIG_ENDIAN
 142 #    define native_architecture() ARCHITECTURE_ARM64_BE
 143 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 144 #  else
 145 #    define native_architecture() ARCHITECTURE_ARM64
 146 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 147 #  endif
 148 #elif defined(__arm__)
 149 #  if __BYTE_ORDER == __BIG_ENDIAN
 150 #    define native_architecture() ARCHITECTURE_ARM_BE
 151 #    if defined(__ARM_EABI__)
 152 #      if defined(__ARM_PCS_VFP)
 153 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 154 #      else
 155 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 156 #      endif
 157 #    else
 158 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 159 #    endif
 160 #  else
 161 #    define native_architecture() ARCHITECTURE_ARM
 162 #    if defined(__ARM_EABI__)
 163 #      if defined(__ARM_PCS_VFP)
 164 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 165 #      else
 166 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 167 #      endif
 168 #    else
 169 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 170 #    endif
 171 #  endif
 172 #elif defined(__sh64__)
 173 #  define native_architecture() ARCHITECTURE_SH64
 174 #  error "Missing LIB_ARCH_TUPLE for SH64"
 175 #elif defined(__sh__)
 176 #  define native_architecture() ARCHITECTURE_SH
 177 #  define LIB_ARCH_TUPLE "sh4-linux-gnu"
 178 #elif defined(__m68k__)
 179 #  define native_architecture() ARCHITECTURE_M68K
 180 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 181 #elif defined(__tilegx__)
 182 #  define native_architecture() ARCHITECTURE_TILEGX
 183 #  error "Missing LIB_ARCH_TUPLE for TILEGX"
 184 #elif defined(__cris__)
 185 #  define native_architecture() ARCHITECTURE_CRIS
 186 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 187 #else
 188 #  error "Please register your architecture here!"
 189 #endif
 190
 191 const char *architecture_to_string(int a) _const_;
 192 int architecture_from_string(const char *s) _pure_;