ext/pcre/pcrelib/sljit/sljitConfigInternal.h

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   1 /*
   2  *    Stack-less Just-In-Time compiler
   3  *
   4  *    Copyright 2009-2012 Zoltan Herczeg (hzmester@freemail.hu). All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without modification, are
   7  * permitted provided that the following conditions are met:
   8  *
   9  *   1. Redistributions of source code must retain the above copyright notice, this list of
  10  *      conditions and the following disclaimer.
  11  *
  12  *   2. Redistributions in binary form must reproduce the above copyright notice, this list
  13  *      of conditions and the following disclaimer in the documentation and/or other materials
  14  *      provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER(S) AND CONTRIBUTORS ``AS IS'' AND ANY
  17  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
  19  * SHALL THE COPYRIGHT HOLDER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
  20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
  21  * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
  22  * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
  24  * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  25  */
  26 
  27 #ifndef _SLJIT_CONFIG_INTERNAL_H_
  28 #define _SLJIT_CONFIG_INTERNAL_H_
  29 
  30 /*
  31    SLJIT defines the following architecture dependent types and macros:
  32 
  33    Types:
  34      sljit_sb, sljit_ub : signed and unsigned 8 bit byte
  35      sljit_sh, sljit_uh : signed and unsigned 16 bit half-word (short) type
  36      sljit_si, sljit_ui : signed and unsigned 32 bit integer type
  37      sljit_sw, sljit_uw : signed and unsigned machine word, enough to store a pointer
  38      sljit_p : unsgined pointer value (usually the same as sljit_uw, but
  39                some 64 bit ABIs may use 32 bit pointers)
  40      sljit_s : single precision floating point value
  41      sljit_d : double precision floating point value
  42 
  43    Macros for feature detection (boolean):
  44      SLJIT_32BIT_ARCHITECTURE : 32 bit architecture
  45      SLJIT_64BIT_ARCHITECTURE : 64 bit architecture
  46      SLJIT_LITTLE_ENDIAN : little endian architecture
  47      SLJIT_BIG_ENDIAN : big endian architecture
  48      SLJIT_UNALIGNED : allows unaligned memory accesses for non-fpu operations (only!)
  49      SLJIT_INDIRECT_CALL : see SLJIT_FUNC_OFFSET() for more information
  50 
  51    Constants:
  52      SLJIT_NUMBER_OF_REGISTERS : number of available registers
  53      SLJIT_NUMBER_OF_SCRATCH_REGISTERS : number of available scratch registers
  54      SLJIT_NUMBER_OF_SAVED_REGISTERS : number of available saved registers
  55      SLJIT_NUMBER_OF_FLOAT_REGISTERS : number of available floating point registers
  56      SLJIT_NUMBER_OF_SCRATCH_FLOAT_REGISTERS : number of available floating point scratch registers
  57      SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS : number of available floating point saved registers
  58      SLJIT_WORD_SHIFT : the shift required to apply when accessing a sljit_sw/sljit_uw array by index
  59      SLJIT_DOUBLE_SHIFT : the shift required to apply when accessing
  60                           a double precision floating point array by index
  61      SLJIT_SINGLE_SHIFT : the shift required to apply when accessing
  62                           a single precision floating point array by index
  63      SLJIT_LOCALS_OFFSET : local space starting offset (SLJIT_SP + SLJIT_LOCALS_OFFSET)
  64      SLJIT_RETURN_ADDRESS_OFFSET : a return instruction always adds this offset to the return address
  65 
  66    Other macros:
  67      SLJIT_CALL : C calling convention define for both calling JIT form C and C callbacks for JIT
  68      SLJIT_W(number) : defining 64 bit constants on 64 bit architectures (compiler independent helper)
  69 */
  70 
  71 /*****************/
  72 /* Sanity check. */
  73 /*****************/
  74 
  75 #if !((defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
  76         || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
  77         || (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
  78         || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
  79         || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
  80         || (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \
  81         || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
  82         || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
  83         || (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
  84         || (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) \
  85         || (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) \
  86         || (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX) \
  87         || (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
  88         || (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED))
  89 #error "An architecture must be selected"
  90 #endif
  91 
  92 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
  93         + (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
  94         + (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) \
  95         + (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
  96         + (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
  97         + (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \
  98         + (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
  99         + (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
 100         + (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX) \
 101         + (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
 102         + (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) \
 103         + (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) \
 104         + (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO) \
 105         + (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED) >= 2
 106 #error "Multiple architectures are selected"
 107 #endif
 108 
 109 /********************************************************/
 110 /* Automatic CPU detection (requires compiler support). */
 111 /********************************************************/
 112 
 113 #if (defined SLJIT_CONFIG_AUTO && SLJIT_CONFIG_AUTO)
 114 
 115 #ifndef _WIN32
 116 
 117 #if defined(__i386__) || defined(__i386)
 118 #define SLJIT_CONFIG_X86_32 1
 119 #elif defined(__x86_64__)
 120 #define SLJIT_CONFIG_X86_64 1
 121 #elif defined(__arm__) || defined(__ARM__)
 122 #ifdef __thumb2__
 123 #define SLJIT_CONFIG_ARM_THUMB2 1
 124 #elif defined(__ARM_ARCH_7__) || defined(__ARM_ARCH_7A__) || defined(__ARM_ARCH_7R__)
 125 #define SLJIT_CONFIG_ARM_V7 1
 126 #else
 127 #define SLJIT_CONFIG_ARM_V5 1
 128 #endif
 129 #elif defined (__aarch64__)
 130 #define SLJIT_CONFIG_ARM_64 1
 131 #elif defined(__ppc64__) || defined(__powerpc64__) || defined(_ARCH_PPC64) || (defined(_POWER) && defined(__64BIT__))
 132 #define SLJIT_CONFIG_PPC_64 1
 133 #elif defined(__ppc__) || defined(__powerpc__) || defined(_ARCH_PPC) || defined(_ARCH_PWR) || defined(_ARCH_PWR2) || defined(_POWER)
 134 #define SLJIT_CONFIG_PPC_32 1
 135 #elif defined(__mips__) && !defined(_LP64)
 136 #define SLJIT_CONFIG_MIPS_32 1
 137 #elif defined(__mips64)
 138 #define SLJIT_CONFIG_MIPS_64 1
 139 #elif defined(__sparc__) || defined(__sparc)
 140 #define SLJIT_CONFIG_SPARC_32 1
 141 #elif defined(__tilegx__)
 142 #define SLJIT_CONFIG_TILEGX 1
 143 #else
 144 /* Unsupported architecture */
 145 #define SLJIT_CONFIG_UNSUPPORTED 1
 146 #endif
 147 
 148 #else /* !_WIN32 */
 149 
 150 #if defined(_M_X64) || defined(__x86_64__)
 151 #define SLJIT_CONFIG_X86_64 1
 152 #elif defined(_ARM_)
 153 #define SLJIT_CONFIG_ARM_V5 1
 154 #else
 155 #define SLJIT_CONFIG_X86_32 1
 156 #endif
 157 
 158 #endif /* !WIN32 */
 159 #endif /* SLJIT_CONFIG_AUTO */
 160 
 161 #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
 162 #undef SLJIT_EXECUTABLE_ALLOCATOR
 163 #endif
 164 
 165 /******************************/
 166 /* CPU family type detection. */
 167 /******************************/
 168 
 169 #if (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
 170         || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
 171 #define SLJIT_CONFIG_ARM_32 1
 172 #endif
 173 
 174 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
 175 #define SLJIT_CONFIG_X86 1
 176 #elif (defined SLJIT_CONFIG_ARM_32 && SLJIT_CONFIG_ARM_32) || (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64)
 177 #define SLJIT_CONFIG_ARM 1
 178 #elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
 179 #define SLJIT_CONFIG_PPC 1
 180 #elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) || (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
 181 #define SLJIT_CONFIG_MIPS 1
 182 #elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32) || (defined SLJIT_CONFIG_SPARC_64 && SLJIT_CONFIG_SPARC_64)
 183 #define SLJIT_CONFIG_SPARC 1
 184 #endif
 185 
 186 /**********************************/
 187 /* External function definitions. */
 188 /**********************************/
 189 
 190 #if !(defined SLJIT_STD_MACROS_DEFINED && SLJIT_STD_MACROS_DEFINED)
 191 
 192 /* These libraries are needed for the macros below. */
 193 #include <stdlib.h>
 194 #include <string.h>
 195 
 196 #endif /* SLJIT_STD_MACROS_DEFINED */
 197 
 198 /* General macros:
 199    Note: SLJIT is designed to be independent from them as possible.
 200 
 201    In release mode (SLJIT_DEBUG is not defined) only the following
 202    external functions are needed:
 203 */
 204 
 205 #ifndef SLJIT_MALLOC
 206 #define SLJIT_MALLOC(size, allocator_data) malloc(size)
 207 #endif
 208 
 209 #ifndef SLJIT_FREE
 210 #define SLJIT_FREE(ptr, allocator_data) free(ptr)
 211 #endif
 212 
 213 #ifndef SLJIT_MEMMOVE
 214 #define SLJIT_MEMMOVE(dest, src, len) memmove(dest, src, len)
 215 #endif
 216 
 217 #ifndef SLJIT_ZEROMEM
 218 #define SLJIT_ZEROMEM(dest, len) memset(dest, 0, len)
 219 #endif
 220 
 221 /***************************/
 222 /* Compiler helper macros. */
 223 /***************************/
 224 
 225 #if !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY)
 226 
 227 #if defined(__GNUC__) && (__GNUC__ >= 3)
 228 #define SLJIT_LIKELY(x)         __builtin_expect((x), 1)
 229 #define SLJIT_UNLIKELY(x)       __builtin_expect((x), 0)
 230 #else
 231 #define SLJIT_LIKELY(x)         (x)
 232 #define SLJIT_UNLIKELY(x)       (x)
 233 #endif
 234 
 235 #endif /* !defined(SLJIT_LIKELY) && !defined(SLJIT_UNLIKELY) */
 236 
 237 #ifndef SLJIT_INLINE
 238 /* Inline functions. Some old compilers do not support them. */
 239 #if defined(__SUNPRO_C) && __SUNPRO_C <= 0x510
 240 #define SLJIT_INLINE
 241 #else
 242 #define SLJIT_INLINE __inline
 243 #endif
 244 #endif /* !SLJIT_INLINE */
 245 
 246 #ifndef SLJIT_NOINLINE
 247 /* Not inline functions. */
 248 #if defined(__GNUC__)
 249 #define SLJIT_NOINLINE __attribute__ ((noinline))
 250 #else
 251 #define SLJIT_NOINLINE
 252 #endif
 253 #endif /* !SLJIT_INLINE */
 254 
 255 #ifndef SLJIT_CONST
 256 /* Const variables. */
 257 #define SLJIT_CONST const
 258 #endif
 259 
 260 #ifndef SLJIT_UNUSED_ARG
 261 /* Unused arguments. */
 262 #define SLJIT_UNUSED_ARG(arg) (void)arg
 263 #endif
 264 
 265 /*********************************/
 266 /* Type of public API functions. */
 267 /*********************************/
 268 
 269 #if (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC)
 270 /* Static ABI functions. For all-in-one programs. */
 271 
 272 #if defined(__GNUC__)
 273 /* Disable unused warnings in gcc. */
 274 #define SLJIT_API_FUNC_ATTRIBUTE static __attribute__((unused))
 275 #else
 276 #define SLJIT_API_FUNC_ATTRIBUTE static
 277 #endif
 278 
 279 #else
 280 #define SLJIT_API_FUNC_ATTRIBUTE
 281 #endif /* (defined SLJIT_CONFIG_STATIC && SLJIT_CONFIG_STATIC) */
 282 
 283 /****************************/
 284 /* Instruction cache flush. */
 285 /****************************/
 286 
 287 #ifndef SLJIT_CACHE_FLUSH
 288 
 289 #if (defined SLJIT_CONFIG_X86 && SLJIT_CONFIG_X86)
 290 
 291 /* Not required to implement on archs with unified caches. */
 292 #define SLJIT_CACHE_FLUSH(from, to)
 293 
 294 #elif defined __APPLE__
 295 
 296 /* Supported by all macs since Mac OS 10.5.
 297    However, it does not work on non-jailbroken iOS devices,
 298    although the compilation is successful. */
 299 
 300 #define SLJIT_CACHE_FLUSH(from, to) \
 301         sys_icache_invalidate((char*)(from), (char*)(to) - (char*)(from))
 302 
 303 #elif defined __ANDROID__
 304 
 305 /* Android lacks __clear_cache; instead, cacheflush should be used. */
 306 
 307 #define SLJIT_CACHE_FLUSH(from, to) \
 308     cacheflush((long)(from), (long)(to), 0)
 309 
 310 #elif (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC)
 311 
 312 /* The __clear_cache() implementation of GCC is a dummy function on PowerPC. */
 313 #define SLJIT_CACHE_FLUSH(from, to) \
 314         ppc_cache_flush((from), (to))
 315 
 316 #elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
 317 
 318 /* The __clear_cache() implementation of GCC is a dummy function on Sparc. */
 319 #define SLJIT_CACHE_FLUSH(from, to) \
 320         sparc_cache_flush((from), (to))
 321 
 322 #else
 323 
 324 /* Calls __ARM_NR_cacheflush on ARM-Linux. */
 325 #define SLJIT_CACHE_FLUSH(from, to) \
 326         __clear_cache((char*)(from), (char*)(to))
 327 
 328 #endif
 329 
 330 #endif /* !SLJIT_CACHE_FLUSH */
 331 
 332 /******************************************************/
 333 /* Byte/half/int/word/single/double type definitions. */
 334 /******************************************************/
 335 
 336 /* 8 bit byte type. */
 337 typedef unsigned char sljit_ub;
 338 typedef signed char sljit_sb;
 339 
 340 /* 16 bit half-word type. */
 341 typedef unsigned short int sljit_uh;
 342 typedef signed short int sljit_sh;
 343 
 344 /* 32 bit integer type. */
 345 typedef unsigned int sljit_ui;
 346 typedef signed int sljit_si;
 347 
 348 /* Machine word type. Enough for storing a pointer.
 349      32 bit for 32 bit machines.
 350      64 bit for 64 bit machines. */
 351 #if (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
 352 /* Just to have something. */
 353 #define SLJIT_WORD_SHIFT 0
 354 typedef unsigned long int sljit_uw;
 355 typedef long int sljit_sw;
 356 #elif !(defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
 357         && !(defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \
 358         && !(defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) \
 359         && !(defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64) \
 360         && !(defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX)
 361 #define SLJIT_32BIT_ARCHITECTURE 1
 362 #define SLJIT_WORD_SHIFT 2
 363 typedef unsigned int sljit_uw;
 364 typedef int sljit_sw;
 365 #else
 366 #define SLJIT_64BIT_ARCHITECTURE 1
 367 #define SLJIT_WORD_SHIFT 3
 368 #ifdef _WIN32
 369 typedef unsigned __int64 sljit_uw;
 370 typedef __int64 sljit_sw;
 371 #else
 372 typedef unsigned long int sljit_uw;
 373 typedef long int sljit_sw;
 374 #endif
 375 #endif
 376 
 377 typedef sljit_uw sljit_p;
 378 
 379 /* Floating point types. */
 380 typedef float sljit_s;
 381 typedef double sljit_d;
 382 
 383 /* Shift for pointer sized data. */
 384 #define SLJIT_POINTER_SHIFT SLJIT_WORD_SHIFT
 385 
 386 /* Shift for double precision sized data. */
 387 #define SLJIT_DOUBLE_SHIFT 3
 388 #define SLJIT_SINGLE_SHIFT 2
 389 
 390 #ifndef SLJIT_W
 391 
 392 /* Defining long constants. */
 393 #if (defined SLJIT_64BIT_ARCHITECTURE && SLJIT_64BIT_ARCHITECTURE)
 394 #define SLJIT_W(w)      (w##ll)
 395 #else
 396 #define SLJIT_W(w)      (w)
 397 #endif
 398 
 399 #endif /* !SLJIT_W */
 400 
 401 /*************************/
 402 /* Endianness detection. */
 403 /*************************/
 404 
 405 #if !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN)
 406 
 407 /* These macros are mostly useful for the applications. */
 408 #if (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
 409         || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
 410 
 411 #ifdef __LITTLE_ENDIAN__
 412 #define SLJIT_LITTLE_ENDIAN 1
 413 #else
 414 #define SLJIT_BIG_ENDIAN 1
 415 #endif
 416 
 417 #elif (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32) \
 418         || (defined SLJIT_CONFIG_MIPS_64 && SLJIT_CONFIG_MIPS_64)
 419 
 420 #ifdef __MIPSEL__
 421 #define SLJIT_LITTLE_ENDIAN 1
 422 #else
 423 #define SLJIT_BIG_ENDIAN 1
 424 #endif
 425 
 426 #elif (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
 427 
 428 #define SLJIT_BIG_ENDIAN 1
 429 
 430 #else
 431 #define SLJIT_LITTLE_ENDIAN 1
 432 #endif
 433 
 434 #endif /* !defined(SLJIT_BIG_ENDIAN) && !defined(SLJIT_LITTLE_ENDIAN) */
 435 
 436 /* Sanity check. */
 437 #if (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && (defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
 438 #error "Exactly one endianness must be selected"
 439 #endif
 440 
 441 #if !(defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN) && !(defined SLJIT_LITTLE_ENDIAN && SLJIT_LITTLE_ENDIAN)
 442 #error "Exactly one endianness must be selected"
 443 #endif
 444 
 445 #ifndef SLJIT_UNALIGNED
 446 
 447 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32) \
 448         || (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) \
 449         || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7) \
 450         || (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2) \
 451         || (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64) \
 452         || (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) \
 453         || (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64)
 454 #define SLJIT_UNALIGNED 1
 455 #endif
 456 
 457 #endif /* !SLJIT_UNALIGNED */
 458 
 459 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
 460 /* Auto detect SSE2 support using CPUID.
 461    On 64 bit x86 cpus, sse2 must be present. */
 462 #define SLJIT_DETECT_SSE2 1
 463 #endif
 464 
 465 /*****************************************************************************************/
 466 /* Calling convention of functions generated by SLJIT or called from the generated code. */
 467 /*****************************************************************************************/
 468 
 469 #ifndef SLJIT_CALL
 470 
 471 #if (defined SLJIT_USE_CDECL_CALLING_CONVENTION && SLJIT_USE_CDECL_CALLING_CONVENTION)
 472 
 473 /* Force cdecl. */
 474 #define SLJIT_CALL
 475 
 476 #elif (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
 477 
 478 #if defined(__GNUC__) && !defined(__APPLE__)
 479 
 480 #define SLJIT_CALL __attribute__ ((fastcall))
 481 #define SLJIT_X86_32_FASTCALL 1
 482 
 483 #elif defined(_MSC_VER)
 484 
 485 #define SLJIT_CALL __fastcall
 486 #define SLJIT_X86_32_FASTCALL 1
 487 
 488 #elif defined(__BORLANDC__)
 489 
 490 #define SLJIT_CALL __msfastcall
 491 #define SLJIT_X86_32_FASTCALL 1
 492 
 493 #else /* Unknown compiler. */
 494 
 495 /* The cdecl attribute is the default. */
 496 #define SLJIT_CALL
 497 
 498 #endif
 499 
 500 #else /* Non x86-32 architectures. */
 501 
 502 #define SLJIT_CALL
 503 
 504 #endif /* SLJIT_CONFIG_X86_32 */
 505 
 506 #endif /* !SLJIT_CALL */
 507 
 508 #ifndef SLJIT_INDIRECT_CALL
 509 #if ((defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) && (defined SLJIT_BIG_ENDIAN && SLJIT_BIG_ENDIAN)) \
 510         || ((defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32) && defined _AIX)
 511 /* It seems certain ppc compilers use an indirect addressing for functions
 512    which makes things complicated. */
 513 #define SLJIT_INDIRECT_CALL 1
 514 #endif
 515 #endif /* SLJIT_INDIRECT_CALL */
 516 
 517 /* The offset which needs to be substracted from the return address to
 518 determine the next executed instruction after return. */
 519 #ifndef SLJIT_RETURN_ADDRESS_OFFSET
 520 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
 521 #define SLJIT_RETURN_ADDRESS_OFFSET 8
 522 #else
 523 #define SLJIT_RETURN_ADDRESS_OFFSET 0
 524 #endif
 525 #endif /* SLJIT_RETURN_ADDRESS_OFFSET */
 526 
 527 /***************************************************/
 528 /* Functions of the built-in executable allocator. */
 529 /***************************************************/
 530 
 531 #if (defined SLJIT_EXECUTABLE_ALLOCATOR && SLJIT_EXECUTABLE_ALLOCATOR)
 532 SLJIT_API_FUNC_ATTRIBUTE void* sljit_malloc_exec(sljit_uw size);
 533 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_exec(void* ptr);
 534 SLJIT_API_FUNC_ATTRIBUTE void sljit_free_unused_memory_exec(void);
 535 #define SLJIT_MALLOC_EXEC(size) sljit_malloc_exec(size)
 536 #define SLJIT_FREE_EXEC(ptr) sljit_free_exec(ptr)
 537 #endif
 538 
 539 /**********************************************/
 540 /* Registers and locals offset determination. */
 541 /**********************************************/
 542 
 543 #if (defined SLJIT_CONFIG_X86_32 && SLJIT_CONFIG_X86_32)
 544 
 545 #define SLJIT_NUMBER_OF_REGISTERS 10
 546 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 7
 547 #if (defined SLJIT_X86_32_FASTCALL && SLJIT_X86_32_FASTCALL)
 548 #define SLJIT_LOCALS_OFFSET_BASE ((2 + 4) * sizeof(sljit_sw))
 549 #else
 550 /* Maximum 3 arguments are passed on the stack, +1 for double alignment. */
 551 #define SLJIT_LOCALS_OFFSET_BASE ((3 + 1 + 4) * sizeof(sljit_sw))
 552 #endif /* SLJIT_X86_32_FASTCALL */
 553 
 554 #elif (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64)
 555 
 556 #ifndef _WIN64
 557 #define SLJIT_NUMBER_OF_REGISTERS 12
 558 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 6
 559 #define SLJIT_LOCALS_OFFSET_BASE (sizeof(sljit_sw))
 560 #else
 561 #define SLJIT_NUMBER_OF_REGISTERS 12
 562 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8
 563 #define SLJIT_LOCALS_OFFSET_BASE ((4 + 2) * sizeof(sljit_sw))
 564 #endif /* _WIN64 */
 565 
 566 #elif (defined SLJIT_CONFIG_ARM_V5 && SLJIT_CONFIG_ARM_V5) || (defined SLJIT_CONFIG_ARM_V7 && SLJIT_CONFIG_ARM_V7)
 567 
 568 #define SLJIT_NUMBER_OF_REGISTERS 11
 569 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8
 570 #define SLJIT_LOCALS_OFFSET_BASE 0
 571 
 572 #elif (defined SLJIT_CONFIG_ARM_THUMB2 && SLJIT_CONFIG_ARM_THUMB2)
 573 
 574 #define SLJIT_NUMBER_OF_REGISTERS 11
 575 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 7
 576 #define SLJIT_LOCALS_OFFSET_BASE 0
 577 
 578 #elif (defined SLJIT_CONFIG_ARM_64 && SLJIT_CONFIG_ARM_64)
 579 
 580 #define SLJIT_NUMBER_OF_REGISTERS 25
 581 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 10
 582 #define SLJIT_LOCALS_OFFSET_BASE (2 * sizeof(sljit_sw))
 583 
 584 #elif (defined SLJIT_CONFIG_PPC && SLJIT_CONFIG_PPC)
 585 
 586 #define SLJIT_NUMBER_OF_REGISTERS 22
 587 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 17
 588 #if (defined SLJIT_CONFIG_PPC_64 && SLJIT_CONFIG_PPC_64) || (defined _AIX)
 589 #define SLJIT_LOCALS_OFFSET_BASE ((6 + 8) * sizeof(sljit_sw))
 590 #elif (defined SLJIT_CONFIG_PPC_32 && SLJIT_CONFIG_PPC_32)
 591 /* Add +1 for double alignment. */
 592 #define SLJIT_LOCALS_OFFSET_BASE ((3 + 1) * sizeof(sljit_sw))
 593 #else
 594 #define SLJIT_LOCALS_OFFSET_BASE (3 * sizeof(sljit_sw))
 595 #endif /* SLJIT_CONFIG_PPC_64 || _AIX */
 596 
 597 #elif (defined SLJIT_CONFIG_MIPS && SLJIT_CONFIG_MIPS)
 598 
 599 #define SLJIT_NUMBER_OF_REGISTERS 17
 600 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 8
 601 #if (defined SLJIT_CONFIG_MIPS_32 && SLJIT_CONFIG_MIPS_32)
 602 #define SLJIT_LOCALS_OFFSET_BASE (4 * sizeof(sljit_sw))
 603 #else
 604 #define SLJIT_LOCALS_OFFSET_BASE 0
 605 #endif
 606 
 607 #elif (defined SLJIT_CONFIG_SPARC && SLJIT_CONFIG_SPARC)
 608 
 609 #define SLJIT_NUMBER_OF_REGISTERS 18
 610 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 14
 611 #if (defined SLJIT_CONFIG_SPARC_32 && SLJIT_CONFIG_SPARC_32)
 612 /* Add +1 for double alignment. */
 613 #define SLJIT_LOCALS_OFFSET_BASE ((23 + 1) * sizeof(sljit_sw))
 614 #endif
 615 
 616 #elif (defined SLJIT_CONFIG_TILEGX && SLJIT_CONFIG_TILEGX)
 617 
 618 #define SLJIT_NUMBER_OF_REGISTERS 10
 619 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 5
 620 #define SLJIT_LOCALS_OFFSET_BASE 0
 621 
 622 #elif (defined SLJIT_CONFIG_UNSUPPORTED && SLJIT_CONFIG_UNSUPPORTED)
 623 
 624 #define SLJIT_NUMBER_OF_REGISTERS 0
 625 #define SLJIT_NUMBER_OF_SAVED_REGISTERS 0
 626 #define SLJIT_LOCALS_OFFSET_BASE 0
 627 
 628 #endif
 629 
 630 #define SLJIT_LOCALS_OFFSET (SLJIT_LOCALS_OFFSET_BASE)
 631 
 632 #define SLJIT_NUMBER_OF_SCRATCH_REGISTERS \
 633         (SLJIT_NUMBER_OF_REGISTERS - SLJIT_NUMBER_OF_SAVED_REGISTERS)
 634 
 635 #define SLJIT_NUMBER_OF_FLOAT_REGISTERS 6
 636 #if (defined SLJIT_CONFIG_X86_64 && SLJIT_CONFIG_X86_64) && (defined _WIN64)
 637 #define SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS 1
 638 #else
 639 #define SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS 0
 640 #endif
 641 
 642 #define SLJIT_NUMBER_OF_SCRATCH_FLOAT_REGISTERS \
 643         (SLJIT_NUMBER_OF_FLOAT_REGISTERS - SLJIT_NUMBER_OF_SAVED_FLOAT_REGISTERS)
 644 
 645 /*************************************/
 646 /* Debug and verbose related macros. */
 647 /*************************************/
 648 
 649 #if (defined SLJIT_VERBOSE && SLJIT_VERBOSE)
 650 #include <stdio.h>
 651 #endif
 652 
 653 #if (defined SLJIT_DEBUG && SLJIT_DEBUG)
 654 
 655 #if !defined(SLJIT_ASSERT) || !defined(SLJIT_ASSERT_STOP)
 656 
 657 /* SLJIT_HALT_PROCESS must halt the process. */
 658 #ifndef SLJIT_HALT_PROCESS
 659 #include <stdlib.h>
 660 
 661 #define SLJIT_HALT_PROCESS() \
 662         abort();
 663 #endif /* !SLJIT_HALT_PROCESS */
 664 
 665 #include <stdio.h>
 666 
 667 #endif /* !SLJIT_ASSERT || !SLJIT_ASSERT_STOP */
 668 
 669 /* Feel free to redefine these two macros. */
 670 #ifndef SLJIT_ASSERT
 671 
 672 #define SLJIT_ASSERT(x) \
 673         do { \
 674                 if (SLJIT_UNLIKELY(!(x))) { \
 675                         printf("Assertion failed at " __FILE__ ":%d\n", __LINE__); \
 676                         SLJIT_HALT_PROCESS(); \
 677                 } \
 678         } while (0)
 679 
 680 #endif /* !SLJIT_ASSERT */
 681 
 682 #ifndef SLJIT_ASSERT_STOP
 683 
 684 #define SLJIT_ASSERT_STOP() \
 685         do { \
 686                 printf("Should never been reached " __FILE__ ":%d\n", __LINE__); \
 687                 SLJIT_HALT_PROCESS(); \
 688         } while (0)
 689 
 690 #endif /* !SLJIT_ASSERT_STOP */
 691 
 692 #else /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
 693 
 694 /* Forcing empty, but valid statements. */
 695 #undef SLJIT_ASSERT
 696 #undef SLJIT_ASSERT_STOP
 697 
 698 #define SLJIT_ASSERT(x) \
 699         do { } while (0)
 700 #define SLJIT_ASSERT_STOP() \
 701         do { } while (0)
 702 
 703 #endif /* (defined SLJIT_DEBUG && SLJIT_DEBUG) */
 704 
 705 #ifndef SLJIT_COMPILE_ASSERT
 706 
 707 /* Should be improved eventually. */
 708 #define SLJIT_COMPILE_ASSERT(x, description) \
 709         SLJIT_ASSERT(x)
 710 
 711 #endif /* !SLJIT_COMPILE_ASSERT */
 712 
 713 #endif
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root/ext/pcre/pcrelib/sljit/sljitConfigInternal.h

INCLUDED FROM
