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 "macro.h"
  27 #include "util.h"
  28
  29 /* A cleaned up architecture definition. We don't want to get lost in
  30  * processor features, models, generations or even ABIs. Hence we
  31  * focus on general family, and distinguish word width and
  32  * endianness. */
  33
  34 enum {
  35         ARCHITECTURE_X86 = 0,
  36         ARCHITECTURE_X86_64,
  37         ARCHITECTURE_PPC,
  38         ARCHITECTURE_PPC_LE,
  39         ARCHITECTURE_PPC64,
  40         ARCHITECTURE_PPC64_LE,
  41         ARCHITECTURE_IA64,
  42         ARCHITECTURE_PARISC,
  43         ARCHITECTURE_PARISC64,
  44         ARCHITECTURE_S390,
  45         ARCHITECTURE_S390X,
  46         ARCHITECTURE_SPARC,
  47         ARCHITECTURE_SPARC64,
  48         ARCHITECTURE_MIPS,
  49         ARCHITECTURE_MIPS_LE,
  50         ARCHITECTURE_MIPS64,
  51         ARCHITECTURE_MIPS64_LE,
  52         ARCHITECTURE_ALPHA,
  53         ARCHITECTURE_ARM,
  54         ARCHITECTURE_ARM_BE,
  55         ARCHITECTURE_ARM64,
  56         ARCHITECTURE_ARM64_BE,
  57         ARCHITECTURE_SH,
  58         ARCHITECTURE_SH64,
  59         ARCHITECTURE_M68K,
  60         ARCHITECTURE_TILEGX,
  61         ARCHITECTURE_CRIS,
  62         _ARCHITECTURE_MAX,
  63         _ARCHITECTURE_INVALID = -1
  64 };
  65
  66 int uname_architecture(void);
  67
  68 /*
  69  * LIB_ARCH_TUPLE should resolve to the local library path
  70  * architecture tuple systemd is built for, according to the Debian
  71  * tuple list:
  72  *
  73  * https://wiki.debian.org/Multiarch/Tuples
  74  *
  75  * This is used in library search paths that should understand
  76  * Debian's paths on all distributions.
  77  */
  78
  79 #if defined(__x86_64__)
  80 #  define native_architecture() ARCHITECTURE_X86_64
  81 #  define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  82 #  define PROC_CPUINFO_MODEL "model name"
  83 #elif defined(__i386__)
  84 #  define native_architecture() ARCHITECTURE_X86
  85 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  86 #  define PROC_CPUINFO_MODEL "model name"
  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 #  else
  92 #    define native_architecture() ARCHITECTURE_PPC64_LE
  93 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
  94 #  endif
  95 #  define PROC_CPUINFO_MODEL "cpu"
  96 #elif defined(__powerpc__)
  97 #  if __BYTE_ORDER == __BIG_ENDIAN
  98 #    define native_architecture() ARCHITECTURE_PPC
  99 #    define LIB_ARCH_TUPLE "powerpc-linux-gnu"
 100 #  else
 101 #    define native_architecture() ARCHITECTURE_PPC_LE
 102 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
 103 #  endif
 104 #  define PROC_CPUINFO_MODEL "cpu"
 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 #  define PROC_CPUINFO_MODEL "cpu"
 112 #elif defined(__hppa__)
 113 #  define native_architecture() ARCHITECTURE_PARISC
 114 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 115 #  define PROC_CPUINFO_MODEL "cpu"
 116 #elif defined(__s390x__)
 117 #  define native_architecture() ARCHITECTURE_S390X
 118 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 119 #elif defined(__s390__)
 120 #  define native_architecture() ARCHITECTURE_S390
 121 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 122 #elif defined(__sparc64__)
 123 #  define native_architecture() ARCHITECTURE_SPARC64
 124 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 125 #  define PROC_CPUINFO_MODEL "cpu"
 126 #elif defined(__sparc__)
 127 #  define native_architecture() ARCHITECTURE_SPARC
 128 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 129 #  define PROC_CPUINFO_MODEL "cpu"
 130 #elif defined(__mips64__)
 131 #  if __BYTE_ORDER == __BIG_ENDIAN
 132 #    define native_architecture() ARCHITECTURE_MIPS64
 133 #    error "Missing LIB_ARCH_TUPLE for MIPS64"
 134 #  else
 135 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 136 #    error "Missing LIB_ARCH_TUPLE for MIPS64_LE"
 137 #  endif
 138 #  define PROC_CPUINFO_MODEL "cpu model"
 139 #elif defined(__mips__)
 140 #  if __BYTE_ORDER == __BIG_ENDIAN
 141 #    define native_architecture() ARCHITECTURE_MIPS
 142 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 143 #  else
 144 #    define native_architecture() ARCHITECTURE_MIPS_LE
 145 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 146 #  endif
 147 #  define PROC_CPUINFO_MODEL "cpu model"
 148 #elif defined(__alpha__)
 149 #  define native_architecture() ARCHITECTURE_ALPHA
 150 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 151 #elif defined(__aarch64__)
 152 #  if __BYTE_ORDER == __BIG_ENDIAN
 153 #    define native_architecture() ARCHITECTURE_ARM64_BE
 154 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 155 #  else
 156 #    define native_architecture() ARCHITECTURE_ARM64
 157 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 158 #  endif
 159 #elif defined(__arm__)
 160 #  if __BYTE_ORDER == __BIG_ENDIAN
 161 #    define native_architecture() ARCHITECTURE_ARM_BE
 162 #    if defined(__ARM_EABI__)
 163 #      if defined(__ARM_PCS_VFP)
 164 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 165 #      else
 166 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 167 #      endif
 168 #    else
 169 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 170 #    endif
 171 #  else
 172 #    define native_architecture() ARCHITECTURE_ARM
 173 #    if defined(__ARM_EABI__)
 174 #      if defined(__ARM_PCS_VFP)
 175 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 176 #      else
 177 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 178 #      endif
 179 #    else
 180 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 181 #    endif
 182 #  endif
 183 #  define PROC_CPUINFO_MODEL "model name"
 184 #elif defined(__sh64__)
 185 #  define native_architecture() ARCHITECTURE_SH64
 186 #  error "Missing LIB_ARCH_TUPLE for SH64"
 187 #elif defined(__sh__)
 188 #  define native_architecture() ARCHITECTURE_SH
 189 #  define LIB_ARCH_TUPLE "sh4-linux-gnu"
 190 #elif defined(__m68k__)
 191 #  define native_architecture() ARCHITECTURE_M68K
 192 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 193 #elif defined(__tilegx__)
 194 #  define native_architecture() ARCHITECTURE_TILEGX
 195 #  error "Missing LIB_ARCH_TUPLE for TILEGX"
 196 #elif defined(__cris__)
 197 #  define native_architecture() ARCHITECTURE_CRIS
 198 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 199 #else
 200 #  error "Please register your architecture here!"
 201 #endif
 202
 203 #ifndef PROC_CPUINFO_MODEL
 204 #warning "PROC_CPUINFO_MODEL not defined for your architecture"
 205 #define PROC_CPUINFO_MODEL "model name"
 206 #endif
 207
 208 const char *architecture_to_string(int a) _const_;
 209 int architecture_from_string(const char *s) _pure_;