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_MAX,
  61         _ARCHITECTURE_INVALID = -1
  62 };
  63
  64 int uname_architecture(void);
  65
  66 /*
  67  * LIB_ARCH_TUPLE should resolve to the local library path
  68  * architecture tuple systemd is built for, according to the Debian
  69  * tuple list:
  70  *
  71  * https://wiki.debian.org/Multiarch/Tuples
  72  *
  73  * This is used in library search paths that should understand
  74  * Debian's paths on all distributions.
  75  */
  76
  77 #if defined(__x86_64__)
  78 #  define native_architecture() ARCHITECTURE_X86_64
  79 #  define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  80 #  define PROC_CPUINFO_MODEL "model name"
  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 #  define PROC_CPUINFO_MODEL "model name"
  86 #elif defined(__powerpc64__)
  87 #  if __BYTE_ORDER == __BIG_ENDIAN
  88 #    define native_architecture() ARCHITECTURE_PPC64
  89 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  90 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC
  91 #  else
  92 #    define native_architecture() ARCHITECTURE_PPC64_LE
  93 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
  94 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC_LE
  95 #  endif
  96 #  define PROC_CPUINFO_MODEL "cpu"
  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 #  define PROC_CPUINFO_MODEL "cpu"
 106 #elif defined(__ia64__)
 107 #  define native_architecture() ARCHITECTURE_IA64
 108 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
 109 #elif defined(__hppa64__)
 110 #  define native_architecture() ARCHITECTURE_PARISC64
 111 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 112 #  define PROC_CPUINFO_MODEL "cpu"
 113 #elif defined(__hppa__)
 114 #  define native_architecture() ARCHITECTURE_PARISC
 115 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 116 #  define PROC_CPUINFO_MODEL "cpu"
 117 #elif defined(__s390x__)
 118 #  define native_architecture() ARCHITECTURE_S390X
 119 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 120 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_S390
 121 #elif defined(__s390__)
 122 #  define native_architecture() ARCHITECTURE_S390
 123 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 124 #elif defined(__sparc64__)
 125 #  define native_architecture() ARCHITECTURE_SPARC64
 126 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 127 #  define PROC_CPUINFO_MODEL "cpu"
 128 #elif defined(__sparc__)
 129 #  define native_architecture() ARCHITECTURE_SPARC
 130 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 131 #  define PROC_CPUINFO_MODEL "cpu"
 132 #elif defined(__mips64__)
 133 #  if __BYTE_ORDER == __BIG_ENDIAN
 134 #    define native_architecture() ARCHITECTURE_MIPS64
 135 #    error "Missing LIB_ARCH_TUPLE for MIPS64"
 136 #  else
 137 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 138 #    error "Missing LIB_ARCH_TUPLE for MIPS64_LE"
 139 #  endif
 140 #  define PROC_CPUINFO_MODEL "cpu model"
 141 #elif defined(__mips__)
 142 #  if __BYTE_ORDER == __BIG_ENDIAN
 143 #    define native_architecture() ARCHITECTURE_MIPS
 144 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 145 #  else
 146 #    define native_architecture() ARCHITECTURE_MIPS_LE
 147 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 148 #  endif
 149 #  define PROC_CPUINFO_MODEL "cpu model"
 150 #elif defined(__alpha__)
 151 #  define native_architecture() ARCHITECTURE_ALPHA
 152 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 153 #elif defined(__aarch64__)
 154 #  if __BYTE_ORDER == __BIG_ENDIAN
 155 #    define native_architecture() ARCHITECTURE_ARM64_BE
 156 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 157 #  else
 158 #    define native_architecture() ARCHITECTURE_ARM64
 159 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 160 #  endif
 161 #elif defined(__arm__)
 162 #  if __BYTE_ORDER == __BIG_ENDIAN
 163 #    define native_architecture() ARCHITECTURE_ARM_BE
 164 #    if defined(__ARM_EABI__)
 165 #      if defined(__ARM_PCS_VFP)
 166 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 167 #      else
 168 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 169 #      endif
 170 #    else
 171 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 172 #    endif
 173 #  else
 174 #    define native_architecture() ARCHITECTURE_ARM
 175 #    if defined(__ARM_EABI__)
 176 #      if defined(__ARM_PCS_VFP)
 177 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 178 #      else
 179 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 180 #      endif
 181 #    else
 182 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 183 #    endif
 184 #  endif
 185 #  define PROC_CPUINFO_MODEL "model name"
 186 #elif defined(__sh64__)
 187 #  define native_architecture() ARCHITECTURE_SH64
 188 #  error "Missing LIB_ARCH_TUPLE for SH64"
 189 #elif defined(__sh__)
 190 #  define native_architecture() ARCHITECTURE_SH
 191 #  define LIB_ARCH_TUPLE "sh4-linux-gnu"
 192 #elif defined(__m68k__)
 193 #  define native_architecture() ARCHITECTURE_M68K
 194 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 195 #elif defined(__tilegx__)
 196 #  define native_architecture() ARCHITECTURE_TILEGX
 197 #  error "Missing LIB_ARCH_TUPLE for TILEGX"
 198 #elif defined(__cris__)
 199 #  define native_architecture() ARCHITECTURE_CRIS
 200 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 201 #else
 202 #  error "Please register your architecture here!"
 203 #endif
 204
 205 #ifndef PROC_CPUINFO_MODEL
 206 #warning "PROC_CPUINFO_MODEL not defined for your architecture"
 207 #define PROC_CPUINFO_MODEL "model name"
 208 #endif
 209
 210 const char *architecture_to_string(int a) _const_;
 211 int architecture_from_string(const char *s) _pure_;