src/basic/architecture.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include <endian.h>
   5
   6 #include "macro.h"
   7 #include "util.h"
   8
   9 /* A cleaned up architecture definition. We don't want to get lost in
  10  * processor features, models, generations or even ABIs. Hence we
  11  * focus on general family, and distinguish word width and
  12  * endianness. */
  13
  14 enum {
  15         ARCHITECTURE_X86 = 0,
  16         ARCHITECTURE_X86_64,
  17         ARCHITECTURE_PPC,
  18         ARCHITECTURE_PPC_LE,
  19         ARCHITECTURE_PPC64,
  20         ARCHITECTURE_PPC64_LE,
  21         ARCHITECTURE_IA64,
  22         ARCHITECTURE_PARISC,
  23         ARCHITECTURE_PARISC64,
  24         ARCHITECTURE_S390,
  25         ARCHITECTURE_S390X,
  26         ARCHITECTURE_SPARC,
  27         ARCHITECTURE_SPARC64,
  28         ARCHITECTURE_MIPS,
  29         ARCHITECTURE_MIPS_LE,
  30         ARCHITECTURE_MIPS64,
  31         ARCHITECTURE_MIPS64_LE,
  32         ARCHITECTURE_ALPHA,
  33         ARCHITECTURE_ARM,
  34         ARCHITECTURE_ARM_BE,
  35         ARCHITECTURE_ARM64,
  36         ARCHITECTURE_ARM64_BE,
  37         ARCHITECTURE_SH,
  38         ARCHITECTURE_SH64,
  39         ARCHITECTURE_M68K,
  40         ARCHITECTURE_TILEGX,
  41         ARCHITECTURE_CRIS,
  42         ARCHITECTURE_NIOS2,
  43         ARCHITECTURE_RISCV32,
  44         ARCHITECTURE_RISCV64,
  45         ARCHITECTURE_ARC,
  46         ARCHITECTURE_ARC_BE,
  47         _ARCHITECTURE_MAX,
  48         _ARCHITECTURE_INVALID = -1
  49 };
  50
  51 int uname_architecture(void);
  52
  53 /*
  54  * LIB_ARCH_TUPLE should resolve to the local library path
  55  * architecture tuple systemd is built for, according to the Debian
  56  * tuple list:
  57  *
  58  * https://wiki.debian.org/Multiarch/Tuples
  59  *
  60  * This is used in library search paths that should understand
  61  * Debian's paths on all distributions.
  62  */
  63
  64 #if defined(__x86_64__)
  65 #  define native_architecture() ARCHITECTURE_X86_64
  66 #  if defined(__ILP32__)
  67 #    define LIB_ARCH_TUPLE "x86_64-linux-gnux32"
  68 #  else
  69 #    define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  70 #  endif
  71 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_X86
  72 #elif defined(__i386__)
  73 #  define native_architecture() ARCHITECTURE_X86
  74 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  75 #elif defined(__powerpc64__)
  76 #  if __BYTE_ORDER == __BIG_ENDIAN
  77 #    define native_architecture() ARCHITECTURE_PPC64
  78 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  79 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC
  80 #  else
  81 #    define native_architecture() ARCHITECTURE_PPC64_LE
  82 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
  83 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_PPC_LE
  84 #  endif
  85 #elif defined(__powerpc__)
  86 #  if __BYTE_ORDER == __BIG_ENDIAN
  87 #    define native_architecture() ARCHITECTURE_PPC
  88 #    if defined(__NO_FPRS__)
  89 #      define LIB_ARCH_TUPLE "powerpc-linux-gnuspe"
  90 #    else
  91 #      define LIB_ARCH_TUPLE "powerpc-linux-gnu"
  92 #    endif
  93 #  else
  94 #    define native_architecture() ARCHITECTURE_PPC_LE
  95 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
  96 #  endif
  97 #elif defined(__ia64__)
  98 #  define native_architecture() ARCHITECTURE_IA64
  99 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
 100 #elif defined(__hppa64__)
 101 #  define native_architecture() ARCHITECTURE_PARISC64
 102 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 103 #elif defined(__hppa__)
 104 #  define native_architecture() ARCHITECTURE_PARISC
 105 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 106 #elif defined(__s390x__)
 107 #  define native_architecture() ARCHITECTURE_S390X
 108 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 109 #  define SECONDARY_ARCHITECTURE ARCHITECTURE_S390
 110 #elif defined(__s390__)
 111 #  define native_architecture() ARCHITECTURE_S390
 112 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 113 #elif defined(__sparc__) && defined (__arch64__)
 114 #  define native_architecture() ARCHITECTURE_SPARC64
 115 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 116 #elif defined(__sparc__)
 117 #  define native_architecture() ARCHITECTURE_SPARC
 118 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 119 #elif defined(__mips64) && defined(__LP64__)
 120 #  if __BYTE_ORDER == __BIG_ENDIAN
 121 #    define native_architecture() ARCHITECTURE_MIPS64
 122 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabi64"
 123 #  else
 124 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 125 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabi64"
 126 #  endif
 127 #elif defined(__mips64)
 128 #  if __BYTE_ORDER == __BIG_ENDIAN
 129 #    define native_architecture() ARCHITECTURE_MIPS64
 130 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabin32"
 131 #  else
 132 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 133 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabin32"
 134 #  endif
 135 #elif defined(__mips__)
 136 #  if __BYTE_ORDER == __BIG_ENDIAN
 137 #    define native_architecture() ARCHITECTURE_MIPS
 138 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 139 #  else
 140 #    define native_architecture() ARCHITECTURE_MIPS_LE
 141 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 142 #  endif
 143 #elif defined(__alpha__)
 144 #  define native_architecture() ARCHITECTURE_ALPHA
 145 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 146 #elif defined(__aarch64__)
 147 #  if __BYTE_ORDER == __BIG_ENDIAN
 148 #    define native_architecture() ARCHITECTURE_ARM64_BE
 149 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 150 #  else
 151 #    define native_architecture() ARCHITECTURE_ARM64
 152 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 153 #    define SECONDARY_ARCHITECTURE ARCHITECTURE_ARM
 154 #  endif
 155 #elif defined(__arm__)
 156 #  if __BYTE_ORDER == __BIG_ENDIAN
 157 #    define native_architecture() ARCHITECTURE_ARM_BE
 158 #    if defined(__ARM_EABI__)
 159 #      if defined(__ARM_PCS_VFP)
 160 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 161 #      else
 162 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 163 #      endif
 164 #    else
 165 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 166 #    endif
 167 #  else
 168 #    define native_architecture() ARCHITECTURE_ARM
 169 #    if defined(__ARM_EABI__)
 170 #      if defined(__ARM_PCS_VFP)
 171 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 172 #      else
 173 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 174 #      endif
 175 #    else
 176 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 177 #    endif
 178 #  endif
 179 #elif defined(__sh64__)
 180 #  define native_architecture() ARCHITECTURE_SH64
 181 #  error "Missing LIB_ARCH_TUPLE for SH64"
 182 #elif defined(__sh__)
 183 #  define native_architecture() ARCHITECTURE_SH
 184 #  if defined(__SH1__)
 185 #    define LIB_ARCH_TUPLE "sh1-linux-gnu"
 186 #  elif defined(__SH2__)
 187 #    define LIB_ARCH_TUPLE "sh2-linux-gnu"
 188 #  elif defined(__SH2A__)
 189 #    define LIB_ARCH_TUPLE "sh2a-linux-gnu"
 190 #  elif defined(__SH2E__)
 191 #    define LIB_ARCH_TUPLE "sh2e-linux-gnu"
 192 #  elif defined(__SH3__)
 193 #    define LIB_ARCH_TUPLE "sh3-linux-gnu"
 194 #  elif defined(__SH3E__)
 195 #    define LIB_ARCH_TUPLE "sh3e-linux-gnu"
 196 #  elif defined(__SH4__) && !defined(__SH4A__)
 197 #    define LIB_ARCH_TUPLE "sh4-linux-gnu"
 198 #  elif defined(__SH4A__)
 199 #    define LIB_ARCH_TUPLE "sh4a-linux-gnu"
 200 #  endif
 201 #elif defined(__m68k__)
 202 #  define native_architecture() ARCHITECTURE_M68K
 203 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 204 #elif defined(__tilegx__)
 205 #  define native_architecture() ARCHITECTURE_TILEGX
 206 #  define LIB_ARCH_TUPLE "tilegx-linux-gnu"
 207 #elif defined(__cris__)
 208 #  define native_architecture() ARCHITECTURE_CRIS
 209 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 210 #elif defined(__nios2__)
 211 #  define native_architecture() ARCHITECTURE_NIOS2
 212 #  define LIB_ARCH_TUPLE "nios2-linux-gnu"
 213 #elif defined(__riscv__) || defined(__riscv)
 214         /* __riscv__ is obsolete, remove in 2018 */
 215 #  if __SIZEOF_POINTER__ == 4
 216 #    define native_architecture() ARCHITECTURE_RISCV32
 217 #    define LIB_ARCH_TUPLE "riscv32-linux-gnu"
 218 #  elif __SIZEOF_POINTER__ == 8
 219 #    define native_architecture() ARCHITECTURE_RISCV64
 220 #    define LIB_ARCH_TUPLE "riscv64-linux-gnu"
 221 #  else
 222 #    error "Unrecognized riscv architecture variant"
 223 #  endif
 224 #elif defined(__arc__)
 225 #  if __BYTE_ORDER == __BIG_ENDIAN
 226 #    define native_architecture() ARCHITECTURE_ARC_BE
 227 #    define LIB_ARCH_TUPLE "arceb-linux"
 228 #  else
 229 #    define native_architecture() ARCHITECTURE_ARC
 230 #    define LIB_ARCH_TUPLE "arc-linux"
 231 #  endif
 232 #else
 233 #  error "Please register your architecture here!"
 234 #endif
 235
 236 const char *architecture_to_string(int a) _const_;
 237 int architecture_from_string(const char *s) _pure_;