src/basic/architecture.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 /***
   5   This file is part of systemd.
   6
   7   Copyright 2014 Lennart Poettering
   8 ***/
   9
  10 #include <endian.h>
  11
  12 #include "macro.h"
  13 #include "util.h"
  14
  15 /* A cleaned up architecture definition. We don't want to get lost in
  16  * processor features, models, generations or even ABIs. Hence we
  17  * focus on general family, and distinguish word width and
  18  * endianness. */
  19
  20 enum {
  21         ARCHITECTURE_X86 = 0,
  22         ARCHITECTURE_X86_64,
  23         ARCHITECTURE_PPC,
  24         ARCHITECTURE_PPC_LE,
  25         ARCHITECTURE_PPC64,
  26         ARCHITECTURE_PPC64_LE,
  27         ARCHITECTURE_IA64,
  28         ARCHITECTURE_PARISC,
  29         ARCHITECTURE_PARISC64,
  30         ARCHITECTURE_S390,
  31         ARCHITECTURE_S390X,
  32         ARCHITECTURE_SPARC,
  33         ARCHITECTURE_SPARC64,
  34         ARCHITECTURE_MIPS,
  35         ARCHITECTURE_MIPS_LE,
  36         ARCHITECTURE_MIPS64,
  37         ARCHITECTURE_MIPS64_LE,
  38         ARCHITECTURE_ALPHA,
  39         ARCHITECTURE_ARM,
  40         ARCHITECTURE_ARM_BE,
  41         ARCHITECTURE_ARM64,
  42         ARCHITECTURE_ARM64_BE,
  43         ARCHITECTURE_SH,
  44         ARCHITECTURE_SH64,
  45         ARCHITECTURE_M68K,
  46         ARCHITECTURE_TILEGX,
  47         ARCHITECTURE_CRIS,
  48         ARCHITECTURE_NIOS2,
  49         ARCHITECTURE_RISCV32,
  50         ARCHITECTURE_RISCV64,
  51         ARCHITECTURE_ARC,
  52         ARCHITECTURE_ARC_BE,
  53         _ARCHITECTURE_MAX,
  54         _ARCHITECTURE_INVALID = -1
  55 };
  56
  57 int uname_architecture(void);
  58
  59 /*
  60  * LIB_ARCH_TUPLE should resolve to the local library path
  61  * architecture tuple systemd is built for, according to the Debian
  62  * tuple list:
  63  *
  64  * https://wiki.debian.org/Multiarch/Tuples
  65  *
  66  * This is used in library search paths that should understand
  67  * Debian's paths on all distributions.
  68  */
  69
  70 #if defined(__x86_64__)
  71 #  define native_architecture() ARCHITECTURE_X86_64
  72 #  if defined(__ILP32__)
  73 #    define LIB_ARCH_TUPLE "x86_64-linux-gnux32"
  74 #  else
  75 #    define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  76 #  endif
  77 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_X86
  78 #elif defined(__i386__)
  79 #  define native_architecture() ARCHITECTURE_X86
  80 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  81 #elif defined(__powerpc64__)
  82 #  if __BYTE_ORDER == __BIG_ENDIAN
  83 #    define native_architecture() ARCHITECTURE_PPC64
  84 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  85 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC
  86 #  else
  87 #    define native_architecture() ARCHITECTURE_PPC64_LE
  88 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
  89 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC_LE
  90 #  endif
  91 #elif defined(__powerpc__)
  92 #  if __BYTE_ORDER == __BIG_ENDIAN
  93 #    define native_architecture() ARCHITECTURE_PPC
  94 #    if defined(__NO_FPRS__)
  95 #      define LIB_ARCH_TUPLE "powerpc-linux-gnuspe"
  96 #    else
  97 #      define LIB_ARCH_TUPLE "powerpc-linux-gnu"
  98 #    endif
  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) && defined(__LP64__)
 126 #  if __BYTE_ORDER == __BIG_ENDIAN
 127 #    define native_architecture() ARCHITECTURE_MIPS64
 128 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabi64"
 129 #  else
 130 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 131 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabi64"
 132 #  endif
 133 #elif defined(__mips64)
 134 #  if __BYTE_ORDER == __BIG_ENDIAN
 135 #    define native_architecture() ARCHITECTURE_MIPS64
 136 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabin32"
 137 #  else
 138 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 139 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabin32"
 140 #  endif
 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 #elif defined(__alpha__)
 150 #  define native_architecture() ARCHITECTURE_ALPHA
 151 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 152 #elif defined(__aarch64__)
 153 #  if __BYTE_ORDER == __BIG_ENDIAN
 154 #    define native_architecture() ARCHITECTURE_ARM64_BE
 155 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 156 #  else
 157 #    define native_architecture() ARCHITECTURE_ARM64
 158 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 159 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_ARM
 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 #elif defined(__sh64__)
 186 #  define native_architecture() ARCHITECTURE_SH64
 187 #  error "Missing LIB_ARCH_TUPLE for SH64"
 188 #elif defined(__sh__)
 189 #  define native_architecture() ARCHITECTURE_SH
 190 #  if defined(__SH1__)
 191 #    define LIB_ARCH_TUPLE "sh1-linux-gnu"
 192 #  elif defined(__SH2__)
 193 #    define LIB_ARCH_TUPLE "sh2-linux-gnu"
 194 #  elif defined(__SH2A__)
 195 #    define LIB_ARCH_TUPLE "sh2a-linux-gnu"
 196 #  elif defined(__SH2E__)
 197 #    define LIB_ARCH_TUPLE "sh2e-linux-gnu"
 198 #  elif defined(__SH3__)
 199 #    define LIB_ARCH_TUPLE "sh3-linux-gnu"
 200 #  elif defined(__SH3E__)
 201 #    define LIB_ARCH_TUPLE "sh3e-linux-gnu"
 202 #  elif defined(__SH4__) && !defined(__SH4A__)
 203 #    define LIB_ARCH_TUPLE "sh4-linux-gnu"
 204 #  elif defined(__SH4A__)
 205 #    define LIB_ARCH_TUPLE "sh4a-linux-gnu"
 206 #  endif
 207 #elif defined(__m68k__)
 208 #  define native_architecture() ARCHITECTURE_M68K
 209 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 210 #elif defined(__tilegx__)
 211 #  define native_architecture() ARCHITECTURE_TILEGX
 212 #  define LIB_ARCH_TUPLE "tilegx-linux-gnu"
 213 #elif defined(__cris__)
 214 #  define native_architecture() ARCHITECTURE_CRIS
 215 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 216 #elif defined(__nios2__)
 217 #  define native_architecture() ARCHITECTURE_NIOS2
 218 #  define LIB_ARCH_TUPLE "nios2-linux-gnu"
 219 #elif defined(__riscv__) || defined(__riscv)
 220         /* __riscv__ is obsolete, remove in 2018 */
 221 #  if __SIZEOF_POINTER__ == 4
 222 #    define native_architecture() ARCHITECTURE_RISCV32
 223 #    define LIB_ARCH_TUPLE "riscv32-linux-gnu"
 224 #  elif __SIZEOF_POINTER__ == 8
 225 #    define native_architecture() ARCHITECTURE_RISCV64
 226 #    define LIB_ARCH_TUPLE "riscv64-linux-gnu"
 227 #  else
 228 #    error "Unrecognized riscv architecture variant"
 229 #  endif
 230 #elif defined(__arc__)
 231 #  if __BYTE_ORDER == __BIG_ENDIAN
 232 #    define native_architecture() ARCHITECTURE_ARC_BE
 233 #    define LIB_ARCH_TUPLE "arceb-linux"
 234 #  else
 235 #    define native_architecture() ARCHITECTURE_ARC
 236 #    define LIB_ARCH_TUPLE "arc-linux"
 237 #  endif
 238 #else
 239 #  error "Please register your architecture here!"
 240 #endif
 241
 242 const char *architecture_to_string(int a) _const_;
 243 int architecture_from_string(const char *s) _pure_;