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