src/lj_arch.h

   1 /*
   2 ** Target architecture selection.
   3 ** Copyright (C) 2005-2015 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        defined(__DragonFly__)) && !defined(__ORBIS__)
  72 #define LUAJIT_OS       LUAJIT_OS_BSD
  73 #elif (defined(__sun__) && defined(__svr4__)) || 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_IOS           (LJ_TARGET_OSX && LUAJIT_TARGET == LUAJIT_ARCH_ARM)
 100 #define LJ_TARGET_POSIX         (LUAJIT_OS > LUAJIT_OS_WINDOWS)
 101 #define LJ_TARGET_DLOPEN        LJ_TARGET_POSIX
 102
 103 #ifdef __CELLOS_LV2__
 104 #define LJ_TARGET_PS3           1
 105 #define LJ_TARGET_CONSOLE       1
 106 #endif
 107
 108 #ifdef __ORBIS__
 109 #define LJ_TARGET_PS4           1
 110 #define LJ_TARGET_CONSOLE       1
 111 #undef NULL
 112 #define NULL ((void*)0)
 113 #endif
 114
 115 #ifdef __psp2__
 116 #define LJ_TARGET_PSVITA        1
 117 #define LJ_TARGET_CONSOLE       1
 118 #endif
 119
 120 #if _XBOX_VER >= 200
 121 #define LJ_TARGET_XBOX360       1
 122 #define LJ_TARGET_CONSOLE       1
 123 #endif
 124
 125 #define LJ_NUMMODE_SINGLE       0       /* Single-number mode only. */
 126 #define LJ_NUMMODE_SINGLE_DUAL  1       /* Default to single-number mode. */
 127 #define LJ_NUMMODE_DUAL         2       /* Dual-number mode only. */
 128 #define LJ_NUMMODE_DUAL_SINGLE  3       /* Default to dual-number mode. */
 129
 130 /* Set target architecture properties. */
 131 #if LUAJIT_TARGET == LUAJIT_ARCH_X86
 132
 133 #define LJ_ARCH_NAME            "x86"
 134 #define LJ_ARCH_BITS            32
 135 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 136 #if LJ_TARGET_WINDOWS || __CYGWIN__
 137 #define LJ_ABI_WIN              1
 138 #else
 139 #define LJ_ABI_WIN              0
 140 #endif
 141 #define LJ_TARGET_X86           1
 142 #define LJ_TARGET_X86ORX64      1
 143 #define LJ_TARGET_EHRETREG      0
 144 #define LJ_TARGET_MASKSHIFT     1
 145 #define LJ_TARGET_MASKROT       1
 146 #define LJ_TARGET_UNALIGNED     1
 147 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE_DUAL
 148
 149 #elif LUAJIT_TARGET == LUAJIT_ARCH_X64
 150
 151 #define LJ_ARCH_NAME            "x64"
 152 #define LJ_ARCH_BITS            64
 153 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 154 #define LJ_ABI_WIN              LJ_TARGET_WINDOWS
 155 #define LJ_TARGET_X64           1
 156 #define LJ_TARGET_X86ORX64      1
 157 #define LJ_TARGET_EHRETREG      0
 158 #define LJ_TARGET_JUMPRANGE     31      /* +-2^31 = +-2GB */
 159 #define LJ_TARGET_MASKSHIFT     1
 160 #define LJ_TARGET_MASKROT       1
 161 #define LJ_TARGET_UNALIGNED     1
 162 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE_DUAL
 163
 164 #elif LUAJIT_TARGET == LUAJIT_ARCH_ARM
 165
 166 #define LJ_ARCH_NAME            "arm"
 167 #define LJ_ARCH_BITS            32
 168 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 169 #if !defined(LJ_ARCH_HASFPU) && __SOFTFP__
 170 #define LJ_ARCH_HASFPU          0
 171 #endif
 172 #if !defined(LJ_ABI_SOFTFP) && !__ARM_PCS_VFP
 173 #define LJ_ABI_SOFTFP           1
 174 #endif
 175 #define LJ_ABI_EABI             1
 176 #define LJ_TARGET_ARM           1
 177 #define LJ_TARGET_EHRETREG      0
 178 #define LJ_TARGET_JUMPRANGE     25      /* +-2^25 = +-32MB */
 179 #define LJ_TARGET_MASKSHIFT     0
 180 #define LJ_TARGET_MASKROT       1
 181 #define LJ_TARGET_UNIFYROT      2       /* Want only IR_BROR. */
 182 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_DUAL
 183
 184 #if __ARM_ARCH____ARM_ARCH_8__ || __ARM_ARCH_8A__
 185 #define LJ_ARCH_VERSION         80
 186 #elif __ARM_ARCH_7__ || __ARM_ARCH_7A__ || __ARM_ARCH_7R__ || __ARM_ARCH_7S__ || __ARM_ARCH_7VE__
 187 #define LJ_ARCH_VERSION         70
 188 #elif __ARM_ARCH_6T2__
 189 #define LJ_ARCH_VERSION         61
 190 #elif __ARM_ARCH_6__ || __ARM_ARCH_6J__ || __ARM_ARCH_6K__ || __ARM_ARCH_6Z__ || __ARM_ARCH_6ZK__
 191 #define LJ_ARCH_VERSION         60
 192 #else
 193 #define LJ_ARCH_VERSION         50
 194 #endif
 195
 196 #elif LUAJIT_TARGET == LUAJIT_ARCH_PPC
 197
 198 #define LJ_ARCH_NAME            "ppc"
 199 #if _LP64
 200 #define LJ_ARCH_BITS            64
 201 #else
 202 #define LJ_ARCH_BITS            32
 203 #endif
 204 #define LJ_ARCH_ENDIAN          LUAJIT_BE
 205 #define LJ_TARGET_PPC           1
 206 #define LJ_TARGET_EHRETREG      3
 207 #define LJ_TARGET_JUMPRANGE     25      /* +-2^25 = +-32MB */
 208 #define LJ_TARGET_MASKSHIFT     0
 209 #define LJ_TARGET_MASKROT       1
 210 #define LJ_TARGET_UNIFYROT      1       /* Want only IR_BROL. */
 211 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_DUAL_SINGLE
 212
 213 #if _ARCH_PWR7
 214 #define LJ_ARCH_VERSION         70
 215 #elif _ARCH_PWR6
 216 #define LJ_ARCH_VERSION         60
 217 #elif _ARCH_PWR5X
 218 #define LJ_ARCH_VERSION         51
 219 #elif _ARCH_PWR5
 220 #define LJ_ARCH_VERSION         50
 221 #elif _ARCH_PWR4
 222 #define LJ_ARCH_VERSION         40
 223 #else
 224 #define LJ_ARCH_VERSION         0
 225 #endif
 226 #if __PPC64__ || __powerpc64__ || LJ_TARGET_CONSOLE
 227 #define LJ_ARCH_PPC64           1
 228 #define LJ_ARCH_NOFFI           1
 229 #endif
 230 #if _ARCH_PPCSQ
 231 #define LJ_ARCH_SQRT            1
 232 #endif
 233 #if _ARCH_PWR5X
 234 #define LJ_ARCH_ROUND           1
 235 #endif
 236 #if __PPU__
 237 #define LJ_ARCH_CELL            1
 238 #endif
 239 #if LJ_TARGET_XBOX360
 240 #define LJ_ARCH_XENON           1
 241 #endif
 242
 243 #elif LUAJIT_TARGET == LUAJIT_ARCH_PPCSPE
 244
 245 #define LJ_ARCH_NAME            "ppcspe"
 246 #define LJ_ARCH_BITS            32
 247 #define LJ_ARCH_ENDIAN          LUAJIT_BE
 248 #ifndef LJ_ABI_SOFTFP
 249 #define LJ_ABI_SOFTFP           1
 250 #endif
 251 #define LJ_ABI_EABI             1
 252 #define LJ_TARGET_PPCSPE        1
 253 #define LJ_TARGET_EHRETREG      3
 254 #define LJ_TARGET_JUMPRANGE     25      /* +-2^25 = +-32MB */
 255 #define LJ_TARGET_MASKSHIFT     0
 256 #define LJ_TARGET_MASKROT       1
 257 #define LJ_TARGET_UNIFYROT      1       /* Want only IR_BROL. */
 258 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE
 259 #define LJ_ARCH_NOFFI           1       /* NYI: comparisons, calls. */
 260 #define LJ_ARCH_NOJIT           1
 261
 262 #elif LUAJIT_TARGET == LUAJIT_ARCH_MIPS
 263
 264 #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL)
 265 #define LJ_ARCH_NAME            "mipsel"
 266 #define LJ_ARCH_ENDIAN          LUAJIT_LE
 267 #else
 268 #define LJ_ARCH_NAME            "mips"
 269 #define LJ_ARCH_ENDIAN          LUAJIT_BE
 270 #endif
 271 #define LJ_ARCH_BITS            32
 272 #define LJ_TARGET_MIPS          1
 273 #define LJ_TARGET_EHRETREG      4
 274 #define LJ_TARGET_JUMPRANGE     27      /* 2*2^27 = 256MB-aligned region */
 275 #define LJ_TARGET_MASKSHIFT     1
 276 #define LJ_TARGET_MASKROT       1
 277 #define LJ_TARGET_UNIFYROT      2       /* Want only IR_BROR. */
 278 #define LJ_ARCH_NUMMODE         LJ_NUMMODE_SINGLE
 279
 280 #if _MIPS_ARCH_MIPS32R2
 281 #define LJ_ARCH_VERSION         20
 282 #else
 283 #define LJ_ARCH_VERSION         10
 284 #endif
 285
 286 #else
 287 #error "No target architecture defined"
 288 #endif
 289
 290 #ifndef LJ_PAGESIZE
 291 #define LJ_PAGESIZE             4096
 292 #endif
 293
 294 /* Check for minimum required compiler versions. */
 295 #if defined(__GNUC__)
 296 #if LJ_TARGET_X86
 297 #if (__GNUC__ < 3) || ((__GNUC__ == 3) && __GNUC_MINOR__ < 4)
 298 #error "Need at least GCC 3.4 or newer"
 299 #endif
 300 #elif LJ_TARGET_X64
 301 #if __GNUC__ < 4
 302 #error "Need at least GCC 4.0 or newer"
 303 #endif
 304 #elif LJ_TARGET_ARM
 305 #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 2)
 306 #error "Need at least GCC 4.2 or newer"
 307 #endif
 308 #elif !LJ_TARGET_PS3
 309 #if (__GNUC__ < 4) || ((__GNUC__ == 4) && __GNUC_MINOR__ < 3)
 310 #error "Need at least GCC 4.3 or newer"
 311 #endif
 312 #endif
 313 #endif
 314
 315 /* Check target-specific constraints. */
 316 #ifndef _BUILDVM_H
 317 #if LJ_TARGET_X64
 318 #if __USING_SJLJ_EXCEPTIONS__
 319 #error "Need a C compiler with native exception handling on x64"
 320 #endif
 321 #elif LJ_TARGET_ARM
 322 #if defined(__ARMEB__)
 323 #error "No support for big-endian ARM"
 324 #endif
 325 #if __ARM_ARCH_6M__ || __ARM_ARCH_7M__ || __ARM_ARCH_7EM__
 326 #error "No support for Cortex-M CPUs"
 327 #endif
 328 #if !(__ARM_EABI__ || LJ_TARGET_IOS)
 329 #error "Only ARM EABI or iOS 3.0+ ABI is supported"
 330 #endif
 331 #elif LJ_TARGET_PPC || LJ_TARGET_PPCSPE
 332 #if defined(_SOFT_FLOAT) || defined(_SOFT_DOUBLE)
 333 #error "No support for PowerPC CPUs without double-precision FPU"
 334 #endif
 335 #if defined(_LITTLE_ENDIAN)
 336 #error "No support for little-endian PowerPC"
 337 #endif
 338 #if defined(_LP64)
 339 #error "No support for PowerPC 64 bit mode"
 340 #endif
 341 #elif LJ_TARGET_MIPS
 342 #if defined(__mips_soft_float)
 343 #error "No support for MIPS CPUs without FPU"
 344 #endif
 345 #if defined(_LP64)
 346 #error "No support for MIPS64"
 347 #endif
 348 #endif
 349 #endif
 350
 351 /* Enable or disable the dual-number mode for the VM. */
 352 #if (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE && LUAJIT_NUMMODE == 2) || \
 353     (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL && LUAJIT_NUMMODE == 1)
 354 #error "No support for this number mode on this architecture"
 355 #endif
 356 #if LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL || \
 357     (LJ_ARCH_NUMMODE == LJ_NUMMODE_DUAL_SINGLE && LUAJIT_NUMMODE != 1) || \
 358     (LJ_ARCH_NUMMODE == LJ_NUMMODE_SINGLE_DUAL && LUAJIT_NUMMODE == 2)
 359 #define LJ_DUALNUM              1
 360 #else
 361 #define LJ_DUALNUM              0
 362 #endif
 363
 364 #if LJ_TARGET_IOS || LJ_TARGET_CONSOLE
 365 /* Runtime code generation is restricted on iOS. Complain to Apple, not me. */
 366 /* Ditto for the consoles. Complain to Sony or MS, not me. */
 367 #ifndef LUAJIT_ENABLE_JIT
 368 #define LJ_OS_NOJIT             1
 369 #endif
 370 #endif
 371
 372 /* Disable or enable the JIT compiler. */
 373 #if defined(LUAJIT_DISABLE_JIT) || defined(LJ_ARCH_NOJIT) || defined(LJ_OS_NOJIT)
 374 #define LJ_HASJIT               0
 375 #else
 376 #define LJ_HASJIT               1
 377 #endif
 378
 379 /* Disable or enable the FFI extension. */
 380 #if defined(LUAJIT_DISABLE_FFI) || defined(LJ_ARCH_NOFFI)
 381 #define LJ_HASFFI               0
 382 #else
 383 #define LJ_HASFFI               1
 384 #endif
 385
 386 #ifndef LJ_ARCH_HASFPU
 387 #define LJ_ARCH_HASFPU          1
 388 #endif
 389 #ifndef LJ_ABI_SOFTFP
 390 #define LJ_ABI_SOFTFP           0
 391 #endif
 392 #define LJ_SOFTFP               (!LJ_ARCH_HASFPU)
 393
 394 #if LJ_ARCH_ENDIAN == LUAJIT_BE
 395 #define LJ_LE                   0
 396 #define LJ_BE                   1
 397 #define LJ_ENDIAN_SELECT(le, be)        be
 398 #define LJ_ENDIAN_LOHI(lo, hi)          hi lo
 399 #else
 400 #define LJ_LE                   1
 401 #define LJ_BE                   0
 402 #define LJ_ENDIAN_SELECT(le, be)        le
 403 #define LJ_ENDIAN_LOHI(lo, hi)          lo hi
 404 #endif
 405
 406 #if LJ_ARCH_BITS == 32
 407 #define LJ_32                   1
 408 #define LJ_64                   0
 409 #else
 410 #define LJ_32                   0
 411 #define LJ_64                   1
 412 #endif
 413
 414 #ifndef LJ_TARGET_UNALIGNED
 415 #define LJ_TARGET_UNALIGNED     0
 416 #endif
 417
 418 /* Various workarounds for embedded operating systems. */
 419 #if (defined(__ANDROID__) && !defined(LJ_TARGET_X86ORX64)) || defined(__symbian__) || LJ_TARGET_XBOX360
 420 #define LUAJIT_NO_LOG2
 421 #endif
 422 #if defined(__symbian__)
 423 #define LUAJIT_NO_EXP2
 424 #endif
 425
 426 #if defined(LUAJIT_NO_UNWIND) || defined(__symbian__) || LJ_TARGET_IOS || LJ_TARGET_PS3 || LJ_TARGET_PS4
 427 #define LJ_NO_UNWIND            1
 428 #endif
 429
 430 /* Compatibility with Lua 5.1 vs. 5.2. */
 431 #ifdef LUAJIT_ENABLE_LUA52COMPAT
 432 #define LJ_52                   1
 433 #else
 434 #define LJ_52                   0
 435 #endif
 436
 437 #endif