src/lj_arch.h

   1 /*
   2 ** Target architecture selection.
   3 ** Copyright (C) 2005-2012 Mike Pall. See Copyright Notice in luajit.h
   4 */
   5
   6 #ifndef _LJ_ARCH_H
   7 #define _LJ_ARCH_H
   8
   9 #include "lua.h"
  10
  11 /* Target endianess. */
  12 #define LUAJIT_LE       0
  13 #define LUAJIT_BE       1
  14
  15 /* Target architectures. */
  16 #define LUAJIT_ARCH_X86         1
  17 #define LUAJIT_ARCH_x86         1
  18 #define LUAJIT_ARCH_X64         2
  19 #define LUAJIT_ARCH_x64         2
  20 #define LUAJIT_ARCH_ARM         3
  21 #define LUAJIT_ARCH_arm         3
  22 #define LUAJIT_ARCH_PPC         4
  23 #define LUAJIT_ARCH_ppc         4
  24 #define LUAJIT_ARCH_PPCSPE      5
  25 #define LUAJIT_ARCH_ppcspe      5
  26 #define LUAJIT_ARCH_MIPS        6
  27 #define LUAJIT_ARCH_mips        6
  28
  29 /* Target OS. */
  30 #define LUAJIT_OS_OTHER         0
  31 #define LUAJIT_OS_WINDOWS       1
  32 #define LUAJIT_OS_LINUX         2
  33 #define LUAJIT_OS_OSX           3
  34 #define LUAJIT_OS_BSD           4
  35 #define LUAJIT_OS_POSIX         5
  36
  37 /* Select native target if no target defined. */
  38 #ifndef LUAJIT_TARGET
  39
  40 #if defined(__i386) || defined(__i386__) || defined(_M_IX86)
  41 #define LUAJIT_TARGET   LUAJIT_ARCH_X86
  42 #elif defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
  43 #define LUAJIT_TARGET   LUAJIT_ARCH_X64
  44 #elif defined(__arm__) || defined(__arm) || defined(__ARM__) || defined(__ARM)
  45 #define LUAJIT_TARGET   LUAJIT_ARCH_ARM
  46 #elif defined(__ppc__) || defined(__ppc) || defined(__PPC__) || defined(__PPC) || defined(__powerpc__) || defined(__powerpc) || defined(__POWERPC__) || defined(__POWERPC) || defined(_M_PPC)
  47 #ifdef __NO_FPRS__
  48 #define LUAJIT_TARGET   LUAJIT_ARCH_PPCSPE
  49 #else
  50 #define LUAJIT_TARGET   LUAJIT_ARCH_PPC
  51 #endif
  52 #elif defined(__mips__) || defined(__mips) || defined(__MIPS__) || defined(__MIPS)
  53 #define LUAJIT_TARGET   LUAJIT_ARCH_MIPS
  54 #else
  55 #error "No support for this architecture (yet)"
  56 #endif
  57
  58 #endif
  59
  60 /* Select native OS if no target OS defined. */
  61 #ifndef LUAJIT_OS
  62
  63 #if defined(_WIN32)
  64 #define LUAJIT_OS       LUAJIT_OS_WINDOWS
  65 #elif defined(__linux__)
  66 #define LUAJIT_OS       LUAJIT_OS_LINUX
  67 #elif defined(__MACH__) && defined(__APPLE__)
  68 #define LUAJIT_OS       LUAJIT_OS_OSX
  69 #elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || \
  70       defined(__NetBSD__) || defined(__OpenBSD__)
  71 #define LUAJIT_OS       LUAJIT_OS_BSD
  72 #elif (defined(__sun__) && defined(__svr4__)) || defined(__solaris__) || \
  73       defined(__CYGWIN__)
  74 #define LUAJIT_OS       LUAJIT_OS_POSIX
  75 #else
  76 #define LUAJIT_OS       LUAJIT_OS_OTHER
  77 #endif
  78
  79 #endif
  80
  81 /* Set target OS properties. */
  82 #if LUAJIT_OS == LUAJIT_OS_WINDOWS
  83 #define LJ_OS_NAME      "Windows"
  84 #elif LUAJIT_OS == LUAJIT_OS_LINUX
  85 #define LJ_OS_NAME      "Linux"
  86 #elif LUAJIT_OS == LUAJIT_OS_OSX
  87 #define LJ_OS_NAME      "OSX"
  88 #elif LUAJIT_OS == LUAJIT_OS_BSD
  89 #define LJ_OS_NAME      "BSD"
  90 #elif LUAJIT_OS == LUAJIT_OS_POSIX
  91 #define LJ_OS_NAME      "POSIX"
  92 #else
  93 #define LJ_OS_NAME      "Other"
  94 #endif
  95
  96 #define LJ_TARGET_WINDOWS       (LUAJIT_OS == LUAJIT_OS_WINDOWS)
  97 #define LJ_TARGET_LINUX         (LUAJIT_OS == LUAJIT_OS_LINUX)
  98 #define LJ_TARGET_OSX           (LUAJIT_OS == LUAJIT_OS_OSX)
  99 #define LJ_TARGET_POSIX         (LUAJIT_OS > LUAJIT_OS_WINDOWS)
 100 #define LJ_TARGET_DLOPEN        LJ_TARGET_POSIX
 101
 102 #define LJ_NUMMODE_SINGLE       0       /* Single-number mode only. */
 103 #define LJ_NUMMODE_SINGLE_DUAL  1       /* Default to single-number mode. */
 104 #define LJ_NUMMODE_DUAL         2       /* Dual-number mode only. */
 105 #define LJ_NUMMODE_DUAL_SINGLE  3       /* Default to dual-number mode. */
 106
 107 /* Set target architecture properties. */
 108 #if LUAJIT_TARGET == LUAJIT_ARCH_X86
 109
 110 #define LJ_ARCH_NAME            "x86"
 111 #define LJ_ARCH_BITS            32
 112 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 113 #define LJ_ARCH_HASFPU          1
 114 #define LJ_ABI_WIN              LJ_TARGET_WINDOWS
 115 #define LJ_TARGET_X86           1
 116 #define LJ_TARGET_X86ORX64      1
 117 #define LJ_TARGET_EHRETREG      0
 118 #define LJ_TARGET_MASKSHIFT     1
 119 #define LJ_TARGET_MASKROT       1
 120 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE_DUAL
 121
 122 #elif LUAJIT_TARGET == LUAJIT_ARCH_X64
 123
 124 #define LJ_ARCH_NAME            "x64"
 125 #define LJ_ARCH_BITS            64
 126 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 127 #define LJ_ARCH_HASFPU          1
 128 #define LJ_ABI_WIN              LJ_TARGET_WINDOWS
 129 #define LJ_TARGET_X64           1
 130 #define LJ_TARGET_X86ORX64      1
 131 #define LJ_TARGET_EHRETREG      0
 132 #define LJ_TARGET_JUMPRANGE     31      /* +-2^31 = +-2GB */
 133 #define LJ_TARGET_MASKSHIFT     1
 134 #define LJ_TARGET_MASKROT       1
 135 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE_DUAL
 136
 137 #elif LUAJIT_TARGET == LUAJIT_ARCH_ARM
 138
 139 #define LJ_ARCH_NAME            "arm"
 140 #define LJ_ARCH_BITS            32
 141 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 142 #define LJ_ARCH_HASFPU          0
 143 #define LJ_ABI_SOFTFP           1
 144 #define LJ_ABI_EABI             1
 145 #define LJ_TARGET_ARM           1
 146 #define LJ_TARGET_EHRETREG      0
 147 #define LJ_TARGET_JUMPRANGE     25      /* +-2^25 = +-32MB */
 148 #define LJ_TARGET_MASKSHIFT     0
 149 #define LJ_TARGET_MASKROT       1
 150 #define LJ_TARGET_UNIFYROT      2       /* Want only IR_BROR. */
 151 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_DUAL
 152 #if LJ_TARGET_OSX
 153 /* Runtime code generation is restricted on iOS. Complain to Apple, not me. */
 154 #define LJ_ARCH_NOJIT           1
 155 #endif
 156
 157 #elif LUAJIT_TARGET == LUAJIT_ARCH_PPC
 158
 159 #define LJ_ARCH_NAME            "ppc"
 160 #define LJ_ARCH_BITS            32
 161 #define LJ_ARCH_ENDIAN          LUAJIT_BE
 162 #define LJ_ARCH_HASFPU          1
 163 #define LJ_TARGET_PPC           1
 164 #define LJ_TARGET_EHRETREG      3
 165 #define LJ_TARGET_JUMPRANGE     25      /* +-2^25 = +-32MB */
 166 #define LJ_TARGET_MASKSHIFT     0
 167 #define LJ_TARGET_MASKROT       1
 168 #define LJ_TARGET_UNIFYROT      1       /* Want only IR_BROL. */
 169 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_DUAL_SINGLE
 170
 171 #elif LUAJIT_TARGET == LUAJIT_ARCH_PPCSPE
 172
 173 #define LJ_ARCH_NAME            "ppcspe"
 174 #define LJ_ARCH_BITS            32
 175 #define LJ_ARCH_ENDIAN          LUAJIT_BE
 176 #define LJ_ARCH_HASFPU          1
 177 #define LJ_ABI_SOFTFP           1
 178 #define LJ_ABI_EABI             1
 179 #define LJ_TARGET_PPCSPE        1
 180 #define LJ_TARGET_EHRETREG      3
 181 #define LJ_TARGET_JUMPRANGE     25      /* +-2^25 = +-32MB */
 182 #define LJ_TARGET_MASKSHIFT     0
 183 #define LJ_TARGET_MASKROT       1
 184 #define LJ_TARGET_UNIFYROT      1       /* Want only IR_BROL. */
 185 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE
 186 #define LJ_ARCH_NOFFI           1       /* NYI: comparisons, calls. */
 187 #define LJ_ARCH_NOJIT           1
 188
 189 #elif LUAJIT_TARGET == LUAJIT_ARCH_MIPS
 190
 191 #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL)
 192 #define LJ_ARCH_NAME            "mipsel"
 193 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 194 #else
 195 #define LJ_ARCH_NAME            "mips"
 196 #define LJ_ARCH_ENDIAN          LUAJIT_BE
 197 #endif
 198 #define LJ_ARCH_BITS            32
 199 #define LJ_ARCH_HASFPU          1
 200 #define LJ_TARGET_MIPS          1
 201 #define LJ_TARGET_EHRETREG      4
 202 #define LJ_TARGET_JUMPRANGE     27      /* 2*2^27 = 256MB-aligned region */
 203 #define LJ_TARGET_MASKSHIFT     1
 204 #define LJ_TARGET_MASKROT       1
 205 #define LJ_TARGET_UNIFYROT      2       /* Want only IR_BROR. */
 206 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE
 207
 208 #else
 209 #error "No target architecture defined"
 210 #endif
 211
 212 #ifndef LJ_PAGESIZE
 213 #define LJ_PAGESIZE             4096
 214 #endif
 215
 216 /* Check for minimum required compiler versions. */
 217 #if defined(__GNUC__)
 218 #if LJ_TARGET_X64
 219 #if __GNUC__ < 4
 220 #error "Need at least GCC 4.0 or newer"
 221 #endif
 222 #elif LJ_TARGET_ARM
 223 #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 2)
 224 #error "Need at least GCC 4.2 or newer"
 225 #endif
 226 #elif LJ_TARGET_PPC
 227 #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 3)
 228 #error "Need at least GCC 4.3 or newer"
 229 #endif
 230 #else
 231 #if (__GNUC__ < 3) || ((__GNUC__ == 3) && __GNUC_MINOR__ < 4)
 232 #error "Need at least GCC 3.4 or newer"
 233 #endif
 234 #endif
 235 #endif
 236
 237 /* Check target-specific constraints. */
 238 #ifndef _BUILDVM_H
 239 #if LJ_TARGET_ARM
 240 #if defined(__ARMEB__)
 241 #error "No support for big-endian ARM"
 242 #endif
 243 #if defined(__ARM_PCS_VFP)
 244 #error "No support for ARM hard-float ABI (yet)"
 245 #endif
 246 #if !(__ARM_EABI__ || LJ_TARGET_OSX)
 247 #error "Only ARM EABI or iOS 3.0+ ABI is supported"
 248 #endif
 249 #elif LJ_TARGET_PPC || LJ_TARGET_PPCSPE
 250 #if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
 251 #error "No support for PowerPC CPUs without double-precision FPU"
 252 #endif
 253 #if defined(_LITTLE_ENDIAN)
 254 #error "No support for little-endian PowerPC"
 255 #endif
 256 #if defined(_LP64)
 257 #error "No support for PowerPC 64 bit mode"
 258 #endif
 259 #endif
 260 #endif
 261
 262 /* Enable or disable the dual-number mode for the VM. */
 263 #if (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE && LUAJIT_NUMMODE == 2) || \
 264     (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL && LUAJIT_NUMMODE == 1)
 265 #error "No support for this number mode on this architecture"
 266 #endif
 267 #if LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL || \
 268     (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL_SINGLE && LUAJIT_NUMMODE != 1) || \
 269     (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE_DUAL && LUAJIT_NUMMODE == 2)
 270 #define LJ_DUALNUM              1
 271 #else
 272 #define LJ_DUALNUM              0
 273 #endif
 274
 275 /* Disable or enable the JIT compiler. */
 276 #if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT)
 277 #define LJ_HASJIT               0
 278 #else
 279 #define LJ_HASJIT               1
 280 #endif
 281
 282 /* Disable or enable the FFI extension. */
 283 #if defined(LUAJIT_DISABLE_FFI) || defined(LJ_ARCH_NOFFI)
 284 #define LJ_HASFFI               0
 285 #else
 286 #define LJ_HASFFI               1
 287 #endif
 288
 289 #define LJ_SOFTFP               (!LJ_ARCH_HASFPU)
 290
 291 #if LJ_ARCH_ENDIAN == LUAJIT_BE
 292 #define LJ_LE                   0
 293 #define LJ_BE                   1
 294 #define LJ_ENDIAN_SELECT(le, be)        be
 295 #define LJ_ENDIAN_LOHI(lo, hi)          hi lo
 296 #else
 297 #define LJ_LE                   1
 298 #define LJ_BE                   0
 299 #define LJ_ENDIAN_SELECT(le, be)        le
 300 #define LJ_ENDIAN_LOHI(lo, hi)          lo hi
 301 #endif
 302
 303 #if LJ_ARCH_BITS == 32
 304 #define LJ_32                   1
 305 #define LJ_64                   0
 306 #else
 307 #define LJ_32                   0
 308 #define LJ_64                   1
 309 #endif
 310
 311 /* Various workarounds for embedded operating systems. */
 312 #if defined(__ANDROID__) || defined(__symbian__)
 313 #define LUAJIT_NO_LOG2
 314 #endif
 315 #if defined(__symbian__)
 316 #define LUAJIT_NO_EXP2
 317 #endif
 318
 319 #if defined(__symbian__) || (LJ_TARGET_ARM && LJ_TARGET_OSX)
 320 #define LUAJIT_NO_UNWIND
 321 #endif
 322
 323 #endif