src/lj_arch.h

   1 /*
   2 ** Target architecture selection.
   3 ** Copyright (C) 2005-2013 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) && !defined(_XBOX_VER)
  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(__CYGWIN__)
  73 #define LUAJIT_OS       LUAJIT_OS_POSIX
  74 #else
  75 #define LUAJIT_OS       LUAJIT_OS_OTHER
  76 #endif
  77
  78 #endif
  79
  80 /* Set target OS properties. */
  81 #if LUAJIT_OS == LUAJIT_OS_WINDOWS
  82 #define LJ_OS_NAME      "Windows"
  83 #elif LUAJIT_OS == LUAJIT_OS_LINUX
  84 #define LJ_OS_NAME      "Linux"
  85 #elif LUAJIT_OS == LUAJIT_OS_OSX
  86 #define LJ_OS_NAME      "OSX"
  87 #elif LUAJIT_OS == LUAJIT_OS_BSD
  88 #define LJ_OS_NAME      "BSD"
  89 #elif LUAJIT_OS == LUAJIT_OS_POSIX
  90 #define LJ_OS_NAME      "POSIX"
  91 #else
  92 #define LJ_OS_NAME      "Other"
  93 #endif
  94
  95 #define LJ_TARGET_WINDOWS       (LUAJIT_OS == LUAJIT_OS_WINDOWS)
  96 #define LJ_TARGET_LINUX         (LUAJIT_OS == LUAJIT_OS_LINUX)
  97 #define LJ_TARGET_OSX           (LUAJIT_OS == LUAJIT_OS_OSX)
  98 #define LJ_TARGET_IOS           (LJ_TARGET_OSX && LUAJIT_TARGET == LUAJIT_ARCH_ARM)
  99 #define LJ_TARGET_POSIX         (LUAJIT_OS > LUAJIT_OS_WINDOWS)
 100 #define LJ_TARGET_DLOPEN        LJ_TARGET_POSIX
 101
 102 #ifdef __CELLOS_LV2__
 103 #define LJ_TARGET_PS3           1
 104 #define LJ_TARGET_CONSOLE       1
 105 #endif
 106
 107 #if _XBOX_VER >= 200
 108 #define LJ_TARGET_XBOX360       1
 109 #define LJ_TARGET_CONSOLE       1
 110 #endif
 111
 112 #define LJ_NUMMODE_SINGLE       0       /* Single-number mode only. */
 113 #define LJ_NUMMODE_SINGLE_DUAL  1       /* Default to single-number mode. */
 114 #define LJ_NUMMODE_DUAL         2       /* Dual-number mode only. */
 115 #define LJ_NUMMODE_DUAL_SINGLE  3       /* Default to dual-number mode. */
 116
 117 /* Set target architecture properties. */
 118 #if LUAJIT_TARGET == LUAJIT_ARCH_X86
 119
 120 #define LJ_ARCH_NAME            "x86"
 121 #define LJ_ARCH_BITS            32
 122 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 123 #if LJ_TARGET_WINDOWS || __CYGWIN__
 124 #define LJ_ABI_WIN              1
 125 #else
 126 #define LJ_ABI_WIN              0
 127 #endif
 128 #define LJ_TARGET_X86           1
 129 #define LJ_TARGET_X86ORX64      1
 130 #define LJ_TARGET_EHRETREG      0
 131 #define LJ_TARGET_MASKSHIFT     1
 132 #define LJ_TARGET_MASKROT       1
 133 #define LJ_TARGET_UNALIGNED     1
 134 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE_DUAL
 135
 136 #elif LUAJIT_TARGET == LUAJIT_ARCH_X64
 137
 138 #define LJ_ARCH_NAME            "x64"
 139 #define LJ_ARCH_BITS            64
 140 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 141 #define LJ_ABI_WIN              LJ_TARGET_WINDOWS
 142 #define LJ_TARGET_X64           1
 143 #define LJ_TARGET_X86ORX64      1
 144 #define LJ_TARGET_EHRETREG      0
 145 #define LJ_TARGET_JUMPRANGE     31      /* +-2^31 = +-2GB */
 146 #define LJ_TARGET_MASKSHIFT     1
 147 #define LJ_TARGET_MASKROT       1
 148 #define LJ_TARGET_UNALIGNED     1
 149 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE_DUAL
 150
 151 #elif LUAJIT_TARGET == LUAJIT_ARCH_ARM
 152
 153 #define LJ_ARCH_NAME            "arm"
 154 #define LJ_ARCH_BITS            32
 155 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 156 #if !defined(LJ_ARCH_HASFPU) && __SOFTFP__
 157 #define LJ_ARCH_HASFPU          0
 158 #endif
 159 #if !defined(LJ_ABI_SOFTFP) && !__ARM_PCS_VFP
 160 #define LJ_ABI_SOFTFP           1
 161 #endif
 162 #define LJ_ABI_EABI             1
 163 #define LJ_TARGET_ARM           1
 164 #define LJ_TARGET_EHRETREG      0
 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      2       /* Want only IR_BROR. */
 169 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_DUAL
 170
 171 #if __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH_7S__
 172 #define LJ_ARCH_VERSION         70
 173 #elif __ARM_ARCH_6T2__
 174 #define LJ_ARCH_VERSION         61
 175 #elif __ARM_ARCH_6__ || __ARM_ARCH_6J__ || __ARM_ARCH_6K__ || __ARM_ARCH_6Z__ || __ARM_ARCH_6ZK__
 176 #define LJ_ARCH_VERSION         60
 177 #else
 178 #define LJ_ARCH_VERSION         50
 179 #endif
 180
 181 #elif LUAJIT_TARGET == LUAJIT_ARCH_PPC
 182
 183 #define LJ_ARCH_NAME            "ppc"
 184 #if _LP64
 185 #define LJ_ARCH_BITS            64
 186 #else
 187 #define LJ_ARCH_BITS            32
 188 #endif
 189 #define LJ_ARCH_ENDIAN          LUAJIT_BE
 190 #define LJ_TARGET_PPC           1
 191 #define LJ_TARGET_EHRETREG      3
 192 #define LJ_TARGET_JUMPRANGE     25      /* +-2^25 = +-32MB */
 193 #define LJ_TARGET_MASKSHIFT     0
 194 #define LJ_TARGET_MASKROT       1
 195 #define LJ_TARGET_UNIFYROT      1       /* Want only IR_BROL. */
 196 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_DUAL_SINGLE
 197
 198 #if _ARCH_PWR7
 199 #define LJ_ARCH_VERSION         70
 200 #elif _ARCH_PWR6
 201 #define LJ_ARCH_VERSION         60
 202 #elif _ARCH_PWR5X
 203 #define LJ_ARCH_VERSION         51
 204 #elif _ARCH_PWR5
 205 #define LJ_ARCH_VERSION         50
 206 #elif _ARCH_PWR4
 207 #define LJ_ARCH_VERSION         40
 208 #else
 209 #define LJ_ARCH_VERSION         0
 210 #endif
 211 #if __PPC64__ || __powerpc64__ || LJ_TARGET_CONSOLE
 212 #define LJ_ARCH_PPC64           1
 213 #define LJ_ARCH_NOFFI           1
 214 #endif
 215 #if _ARCH_PPCSQ
 216 #define LJ_ARCH_SQRT            1
 217 #endif
 218 #if _ARCH_PWR5X
 219 #define LJ_ARCH_ROUND           1
 220 #endif
 221 #if __PPU__
 222 #define LJ_ARCH_CELL            1
 223 #endif
 224 #if LJ_TARGET_XBOX360
 225 #define LJ_ARCH_XENON           1
 226 #endif
 227
 228 #elif LUAJIT_TARGET == LUAJIT_ARCH_PPCSPE
 229
 230 #define LJ_ARCH_NAME            "ppcspe"
 231 #define LJ_ARCH_BITS            32
 232 #define LJ_ARCH_ENDIAN          LUAJIT_BE
 233 #ifndef LJ_ABI_SOFTFP
 234 #define LJ_ABI_SOFTFP           1
 235 #endif
 236 #define LJ_ABI_EABI             1
 237 #define LJ_TARGET_PPCSPE        1
 238 #define LJ_TARGET_EHRETREG      3
 239 #define LJ_TARGET_JUMPRANGE     25      /* +-2^25 = +-32MB */
 240 #define LJ_TARGET_MASKSHIFT     0
 241 #define LJ_TARGET_MASKROT       1
 242 #define LJ_TARGET_UNIFYROT      1       /* Want only IR_BROL. */
 243 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE
 244 #define LJ_ARCH_NOFFI           1       /* NYI: comparisons, calls. */
 245 #define LJ_ARCH_NOJIT           1
 246
 247 #elif LUAJIT_TARGET == LUAJIT_ARCH_MIPS
 248
 249 #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL)
 250 #define LJ_ARCH_NAME            "mipsel"
 251 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 252 #else
 253 #define LJ_ARCH_NAME            "mips"
 254 #define LJ_ARCH_ENDIAN          LUAJIT_BE
 255 #endif
 256 #define LJ_ARCH_BITS            32
 257 #define LJ_TARGET_MIPS          1
 258 #define LJ_TARGET_EHRETREG      4
 259 #define LJ_TARGET_JUMPRANGE     27      /* 2*2^27 = 256MB-aligned region */
 260 #define LJ_TARGET_MASKSHIFT     1
 261 #define LJ_TARGET_MASKROT       1
 262 #define LJ_TARGET_UNIFYROT      2       /* Want only IR_BROR. */
 263 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE
 264
 265 #if _MIPS_ARCH_MIPS32R2
 266 #define LJ_ARCH_VERSION         20
 267 #else
 268 #define LJ_ARCH_VERSION         10
 269 #endif
 270
 271 #else
 272 #error "No target architecture defined"
 273 #endif
 274
 275 #ifndef LJ_PAGESIZE
 276 #define LJ_PAGESIZE             4096
 277 #endif
 278
 279 /* Check for minimum required compiler versions. */
 280 #if defined(__GNUC__)
 281 #if LJ_TARGET_X86
 282 #if (__GNUC__ < 3) || ((__GNUC__ == 3) && __GNUC_MINOR__ < 4)
 283 #error "Need at least GCC 3.4 or newer"
 284 #endif
 285 #elif LJ_TARGET_X64
 286 #if __GNUC__ < 4
 287 #error "Need at least GCC 4.0 or newer"
 288 #endif
 289 #elif LJ_TARGET_ARM
 290 #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 2)
 291 #error "Need at least GCC 4.2 or newer"
 292 #endif
 293 #elif !LJ_TARGET_PS3
 294 #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 3)
 295 #error "Need at least GCC 4.3 or newer"
 296 #endif
 297 #endif
 298 #endif
 299
 300 /* Check target-specific constraints. */
 301 #ifndef _BUILDVM_H
 302 #if LJ_TARGET_X64
 303 #if __USING_SJLJ_EXCEPTIONS__
 304 #error "Need a C compiler with native exception handling on x64"
 305 #endif
 306 #elif LJ_TARGET_ARM
 307 #if defined(__ARMEB__)
 308 #error "No support for big-endian ARM"
 309 #endif
 310 #if __ARM_ARCH_6M__ || __ARM_ARCH_7M__ || __ARM_ARCH_7EM__
 311 #error "No support for Cortex-M CPUs"
 312 #endif
 313 #if !(__ARM_EABI__ || LJ_TARGET_IOS)
 314 #error "Only ARM EABI or iOS 3.0+ ABI is supported"
 315 #endif
 316 #elif LJ_TARGET_PPC || LJ_TARGET_PPCSPE
 317 #if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
 318 #error "No support for PowerPC CPUs without double-precision FPU"
 319 #endif
 320 #if defined(_LITTLE_ENDIAN)
 321 #error "No support for little-endian PowerPC"
 322 #endif
 323 #if defined(_LP64)
 324 #error "No support for PowerPC 64 bit mode"
 325 #endif
 326 #elif LJ_TARGET_MIPS
 327 #if defined(__mips_soft_float)
 328 #error "No support for MIPS CPUs without FPU"
 329 #endif
 330 #endif
 331 #endif
 332
 333 /* Enable or disable the dual-number mode for the VM. */
 334 #if (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE && LUAJIT_NUMMODE == 2) || \
 335     (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL && LUAJIT_NUMMODE == 1)
 336 #error "No support for this number mode on this architecture"
 337 #endif
 338 #if LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL || \
 339     (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL_SINGLE && LUAJIT_NUMMODE != 1) || \
 340     (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE_DUAL && LUAJIT_NUMMODE == 2)
 341 #define LJ_DUALNUM              1
 342 #else
 343 #define LJ_DUALNUM              0
 344 #endif
 345
 346 #if LJ_TARGET_IOS || LJ_TARGET_CONSOLE
 347 /* Runtime code generation is restricted on iOS. Complain to Apple, not me. */
 348 /* Ditto for the consoles. Complain to Sony or MS, not me. */
 349 #ifndef LUAJIT_ENABLE_JIT
 350 #define LJ_OS_NOJIT             1
 351 #endif
 352 #endif
 353
 354 /* Disable or enable the JIT compiler. */
 355 #if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT) || defined(LJ_OS_NOJIT)
 356 #define LJ_HASJIT               0
 357 #else
 358 #define LJ_HASJIT               1
 359 #endif
 360
 361 /* Disable or enable the FFI extension. */
 362 #if defined(LUAJIT_DISABLE_FFI) || defined(LJ_ARCH_NOFFI)
 363 #define LJ_HASFFI               0
 364 #else
 365 #define LJ_HASFFI               1
 366 #endif
 367
 368 #ifndef LJ_ARCH_HASFPU
 369 #define LJ_ARCH_HASFPU          1
 370 #endif
 371 #ifndef LJ_ABI_SOFTFP
 372 #define LJ_ABI_SOFTFP           0
 373 #endif
 374 #define LJ_SOFTFP               (!LJ_ARCH_HASFPU)
 375
 376 #if LJ_ARCH_ENDIAN == LUAJIT_BE
 377 #define LJ_LE                   0
 378 #define LJ_BE                   1
 379 #define LJ_ENDIAN_SELECT(le, be)        be
 380 #define LJ_ENDIAN_LOHI(lo, hi)          hi lo
 381 #else
 382 #define LJ_LE                   1
 383 #define LJ_BE                   0
 384 #define LJ_ENDIAN_SELECT(le, be)        le
 385 #define LJ_ENDIAN_LOHI(lo, hi)          lo hi
 386 #endif
 387
 388 #if LJ_ARCH_BITS == 32
 389 #define LJ_32                   1
 390 #define LJ_64                   0
 391 #else
 392 #define LJ_32                   0
 393 #define LJ_64                   1
 394 #endif
 395
 396 #ifndef LJ_TARGET_UNALIGNED
 397 #define LJ_TARGET_UNALIGNED     0
 398 #endif
 399
 400 /* Various workarounds for embedded operating systems. */
 401 #if (defined(__ANDROID__) && !defined(LJ_TARGET_X86ORX64)) || defined(__symbian__) || LJ_TARGET_XBOX360
 402 #define LUAJIT_NO_LOG2
 403 #endif
 404 #if defined(__symbian__)
 405 #define LUAJIT_NO_EXP2
 406 #endif
 407
 408 #if defined(LUAJIT_NO_UNWIND) || defined(__symbian__) || LJ_TARGET_IOS || LJ_TARGET_PS3
 409 #define LJ_NO_UNWIND            1
 410 #endif
 411
 412 /* Compatibility with Lua 5.1 vs. 5.2. */
 413 #ifdef LUAJIT_ENABLE_LUA52COMPAT
 414 #define LJ_52                   1
 415 #else
 416 #define LJ_52                   0
 417 #endif
 418
 419 #endif