src/basic/architecture.h

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2 #pragma once
   3
   4 #include <endian.h>     /* IWYU pragma: keep */
   5
   6 #include "forward.h"
   7
   8 /* A cleaned up architecture definition. We don't want to get lost in
   9  * processor features, models, generations or even ABIs. Hence we
  10  * focus on general family, and distinguish word width and endianness. */
  11
  12 typedef enum {
  13         ARCHITECTURE_ALPHA,
  14         ARCHITECTURE_ARC,
  15         ARCHITECTURE_ARC_BE,
  16         ARCHITECTURE_ARM,
  17         ARCHITECTURE_ARM64,
  18         ARCHITECTURE_ARM64_BE,
  19         ARCHITECTURE_ARM_BE,
  20         ARCHITECTURE_CRIS,
  21         ARCHITECTURE_IA64,
  22         ARCHITECTURE_LOONGARCH64,
  23         ARCHITECTURE_M68K,
  24         ARCHITECTURE_MIPS,
  25         ARCHITECTURE_MIPS64,
  26         ARCHITECTURE_MIPS64_LE,
  27         ARCHITECTURE_MIPS_LE,
  28         ARCHITECTURE_NIOS2,
  29         ARCHITECTURE_PARISC,
  30         ARCHITECTURE_PARISC64,
  31         ARCHITECTURE_PPC,
  32         ARCHITECTURE_PPC64,
  33         ARCHITECTURE_PPC64_LE,
  34         ARCHITECTURE_PPC_LE,
  35         ARCHITECTURE_RISCV32,
  36         ARCHITECTURE_RISCV64,
  37         ARCHITECTURE_S390,
  38         ARCHITECTURE_S390X,
  39         ARCHITECTURE_SH,
  40         ARCHITECTURE_SH64,
  41         ARCHITECTURE_SPARC,
  42         ARCHITECTURE_SPARC64,
  43         ARCHITECTURE_TILEGX,
  44         ARCHITECTURE_X86,
  45         ARCHITECTURE_X86_64,
  46         _ARCHITECTURE_MAX,
  47         _ARCHITECTURE_INVALID = -EINVAL,
  48 } Architecture;
  49
  50 Architecture uname_architecture(void);
  51
  52 /*
  53  * LIB_ARCH_TUPLE should resolve to the local library path
  54  * architecture tuple systemd is built for, according to the Debian
  55  * tuple list:
  56  *
  57  * https://wiki.debian.org/Multiarch/Tuples
  58  *
  59  * This is used in library search paths that should understand
  60  * Debian's paths on all distributions.
  61  */
  62
  63 #if defined(__x86_64__)
  64 #  define native_architecture() ARCHITECTURE_X86_64
  65 #  if defined(__ILP32__)
  66 #    define LIB_ARCH_TUPLE "x86_64-linux-gnux32"
  67 #  else
  68 #    define LIB_ARCH_TUPLE "x86_64-linux-gnu"
  69 #  endif
  70 #  define ARCHITECTURE_SECONDARY ARCHITECTURE_X86
  71 #elif defined(__i386__)
  72 #  define native_architecture() ARCHITECTURE_X86
  73 #  define LIB_ARCH_TUPLE "i386-linux-gnu"
  74 #elif defined(__powerpc64__)
  75 #  if __BYTE_ORDER == __BIG_ENDIAN
  76 #    define native_architecture() ARCHITECTURE_PPC64
  77 #    define LIB_ARCH_TUPLE "ppc64-linux-gnu"
  78 #    define ARCHITECTURE_SECONDARY ARCHITECTURE_PPC
  79 #  else
  80 #    define native_architecture() ARCHITECTURE_PPC64_LE
  81 #    define LIB_ARCH_TUPLE  "powerpc64le-linux-gnu"
  82 #    define ARCHITECTURE_SECONDARY ARCHITECTURE_PPC_LE
  83 #  endif
  84 #elif defined(__powerpc__)
  85 #  if __BYTE_ORDER == __BIG_ENDIAN
  86 #    define native_architecture() ARCHITECTURE_PPC
  87 #    if defined(__NO_FPRS__)
  88 #      define LIB_ARCH_TUPLE "powerpc-linux-gnuspe"
  89 #    else
  90 #      define LIB_ARCH_TUPLE "powerpc-linux-gnu"
  91 #    endif
  92 #  else
  93 #    define native_architecture() ARCHITECTURE_PPC_LE
  94 #    error "Missing LIB_ARCH_TUPLE for PPCLE"
  95 #  endif
  96 #elif defined(__ia64__)
  97 #  define native_architecture() ARCHITECTURE_IA64
  98 #  define LIB_ARCH_TUPLE "ia64-linux-gnu"
  99 #elif defined(__hppa64__)
 100 #  define native_architecture() ARCHITECTURE_PARISC64
 101 #  error "Missing LIB_ARCH_TUPLE for HPPA64"
 102 #elif defined(__hppa__)
 103 #  define native_architecture() ARCHITECTURE_PARISC
 104 #  define LIB_ARCH_TUPLE "hppa‑linux‑gnu"
 105 #elif defined(__s390x__)
 106 #  define native_architecture() ARCHITECTURE_S390X
 107 #  define LIB_ARCH_TUPLE "s390x-linux-gnu"
 108 #  define ARCHITECTURE_SECONDARY ARCHITECTURE_S390
 109 #elif defined(__s390__)
 110 #  define native_architecture() ARCHITECTURE_S390
 111 #  define LIB_ARCH_TUPLE "s390-linux-gnu"
 112 #elif defined(__sparc__) && defined (__arch64__)
 113 #  define native_architecture() ARCHITECTURE_SPARC64
 114 #  define LIB_ARCH_TUPLE "sparc64-linux-gnu"
 115 #elif defined(__sparc__)
 116 #  define native_architecture() ARCHITECTURE_SPARC
 117 #  define LIB_ARCH_TUPLE "sparc-linux-gnu"
 118 #elif defined(__mips64) && defined(__LP64__)
 119 #  if __BYTE_ORDER == __BIG_ENDIAN
 120 #    define native_architecture() ARCHITECTURE_MIPS64
 121 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabi64"
 122 #  else
 123 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 124 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabi64"
 125 #  endif
 126 #elif defined(__mips64)
 127 #  if __BYTE_ORDER == __BIG_ENDIAN
 128 #    define native_architecture() ARCHITECTURE_MIPS64
 129 #    define LIB_ARCH_TUPLE "mips64-linux-gnuabin32"
 130 #  else
 131 #    define native_architecture() ARCHITECTURE_MIPS64_LE
 132 #    define LIB_ARCH_TUPLE "mips64el-linux-gnuabin32"
 133 #  endif
 134 #elif defined(__mips__)
 135 #  if __BYTE_ORDER == __BIG_ENDIAN
 136 #    define native_architecture() ARCHITECTURE_MIPS
 137 #    define LIB_ARCH_TUPLE "mips-linux-gnu"
 138 #  else
 139 #    define native_architecture() ARCHITECTURE_MIPS_LE
 140 #    define LIB_ARCH_TUPLE "mipsel-linux-gnu"
 141 #  endif
 142 #elif defined(__alpha__)
 143 #  define native_architecture() ARCHITECTURE_ALPHA
 144 #  define LIB_ARCH_TUPLE "alpha-linux-gnu"
 145 #elif defined(__aarch64__)
 146 #  if __BYTE_ORDER == __BIG_ENDIAN
 147 #    define native_architecture() ARCHITECTURE_ARM64_BE
 148 #    define LIB_ARCH_TUPLE "aarch64_be-linux-gnu"
 149 #  else
 150 #    define native_architecture() ARCHITECTURE_ARM64
 151 #    define LIB_ARCH_TUPLE "aarch64-linux-gnu"
 152 #    define ARCHITECTURE_SECONDARY ARCHITECTURE_ARM
 153 #  endif
 154 #elif defined(__arm__)
 155 #  if __BYTE_ORDER == __BIG_ENDIAN
 156 #    define native_architecture() ARCHITECTURE_ARM_BE
 157 #    if defined(__ARM_EABI__)
 158 #      if defined(__ARM_PCS_VFP)
 159 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabihf"
 160 #      else
 161 #        define LIB_ARCH_TUPLE "armeb-linux-gnueabi"
 162 #      endif
 163 #    else
 164 #      define LIB_ARCH_TUPLE "armeb-linux-gnu"
 165 #    endif
 166 #  else
 167 #    define native_architecture() ARCHITECTURE_ARM
 168 #    if defined(__ARM_EABI__)
 169 #      if defined(__ARM_PCS_VFP)
 170 #        define LIB_ARCH_TUPLE "arm-linux-gnueabihf"
 171 #      else
 172 #        define LIB_ARCH_TUPLE "arm-linux-gnueabi"
 173 #      endif
 174 #    else
 175 #      define LIB_ARCH_TUPLE "arm-linux-gnu"
 176 #    endif
 177 #  endif
 178 #elif defined(__sh64__)
 179 #  define native_architecture() ARCHITECTURE_SH64
 180 #  error "Missing LIB_ARCH_TUPLE for SH64"
 181 #elif defined(__sh__)
 182 #  define native_architecture() ARCHITECTURE_SH
 183 #  if defined(__SH1__)
 184 #    define LIB_ARCH_TUPLE "sh1-linux-gnu"
 185 #  elif defined(__SH2__)
 186 #    define LIB_ARCH_TUPLE "sh2-linux-gnu"
 187 #  elif defined(__SH2A__)
 188 #    define LIB_ARCH_TUPLE "sh2a-linux-gnu"
 189 #  elif defined(__SH2E__)
 190 #    define LIB_ARCH_TUPLE "sh2e-linux-gnu"
 191 #  elif defined(__SH3__)
 192 #    define LIB_ARCH_TUPLE "sh3-linux-gnu"
 193 #  elif defined(__SH3E__)
 194 #    define LIB_ARCH_TUPLE "sh3e-linux-gnu"
 195 #  elif defined(__SH4__) && !defined(__SH4A__)
 196 #    define LIB_ARCH_TUPLE "sh4-linux-gnu"
 197 #  elif defined(__SH4A__)
 198 #    define LIB_ARCH_TUPLE "sh4a-linux-gnu"
 199 #  endif
 200 #elif defined(__loongarch_lp64)
 201 #  define native_architecture() ARCHITECTURE_LOONGARCH64
 202 #  if defined(__loongarch_double_float)
 203 #    define LIB_ARCH_TUPLE "loongarch64-linux-gnu"
 204 #  elif defined(__loongarch_single_float)
 205 #    define LIB_ARCH_TUPLE "loongarch64-linux-gnuf32"
 206 #  elif defined(__loongarch_soft_float)
 207 #    define LIB_ARCH_TUPLE "loongarch64-linux-gnusf"
 208 #  else
 209 #    error "Unrecognized loongarch architecture variant"
 210 #  endif
 211 #elif defined(__m68k__)
 212 #  define native_architecture() ARCHITECTURE_M68K
 213 #  define LIB_ARCH_TUPLE "m68k-linux-gnu"
 214 #elif defined(__tilegx__)
 215 #  define native_architecture() ARCHITECTURE_TILEGX
 216 #  define LIB_ARCH_TUPLE "tilegx-linux-gnu"
 217 #elif defined(__cris__)
 218 #  define native_architecture() ARCHITECTURE_CRIS
 219 #  error "Missing LIB_ARCH_TUPLE for CRIS"
 220 #elif defined(__nios2__)
 221 #  define native_architecture() ARCHITECTURE_NIOS2
 222 #  define LIB_ARCH_TUPLE "nios2-linux-gnu"
 223 #elif defined(__riscv)
 224 #  if __SIZEOF_POINTER__ == 4
 225 #    define native_architecture() ARCHITECTURE_RISCV32
 226 #    define LIB_ARCH_TUPLE "riscv32-linux-gnu"
 227 #  elif __SIZEOF_POINTER__ == 8
 228 #    define native_architecture() ARCHITECTURE_RISCV64
 229 #    define LIB_ARCH_TUPLE "riscv64-linux-gnu"
 230 #  else
 231 #    error "Unrecognized riscv architecture variant"
 232 #  endif
 233 #elif defined(__arc__)
 234 #  if __BYTE_ORDER == __BIG_ENDIAN
 235 #    define native_architecture() ARCHITECTURE_ARC_BE
 236 #    define LIB_ARCH_TUPLE "arceb-linux"
 237 #  else
 238 #    define native_architecture() ARCHITECTURE_ARC
 239 #    define LIB_ARCH_TUPLE "arc-linux"
 240 #  endif
 241 #else
 242 #  error "Please register your architecture here!"
 243 #endif
 244
 245 const char* architecture_to_string(Architecture a) _const_;
 246 Architecture architecture_from_string(const char *s) _pure_;