wtf/Platform.h

   1 /*
   2  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc.  All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions
   6  * are met:
   7  * 1. Redistributions of source code must retain the above copyright
   8  *    notice, this list of conditions and the following disclaimer.
   9  * 2. Redistributions in binary form must reproduce the above copyright
  10  *    notice, this list of conditions and the following disclaimer in the
  11  *    documentation and/or other materials provided with the distribution.
  12  *
  13  * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
  14  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  15  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  16  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
  17  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  18  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  19  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  20  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  21  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  24  */
  25
  26 #ifndef WTF_Platform_h
  27 #define WTF_Platform_h
  28
  29 /* PLATFORM handles OS, operating environment, graphics API, and CPU */
  30 #define PLATFORM(WTF_FEATURE) (defined( WTF_PLATFORM_##WTF_FEATURE ) && WTF_PLATFORM_##WTF_FEATURE)
  31 #define COMPILER(WTF_FEATURE) (defined( WTF_COMPILER_##WTF_FEATURE ) && WTF_COMPILER_##WTF_FEATURE)
  32 #define HAVE(WTF_FEATURE) (defined( HAVE_##WTF_FEATURE ) && HAVE_##WTF_FEATURE)
  33 #define USE(WTF_FEATURE) (defined( WTF_USE_##WTF_FEATURE ) && WTF_USE_##WTF_FEATURE)
  34 #define ENABLE(WTF_FEATURE) (defined( ENABLE_##WTF_FEATURE ) && ENABLE_##WTF_FEATURE)
  35
  36 /* Operating systems - low-level dependencies */
  37
  38 /* PLATFORM(DARWIN) */
  39 /* Operating system level dependencies for Mac OS X / Darwin that should */
  40 /* be used regardless of operating environment */
  41 #ifdef __APPLE__
  42 #define WTF_PLATFORM_DARWIN 1
  43 #include <AvailabilityMacros.h>
  44 #if !defined(MAC_OS_X_VERSION_10_5) || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5
  45 #define BUILDING_ON_TIGER 1
  46 #elif !defined(MAC_OS_X_VERSION_10_6) || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_6
  47 #define BUILDING_ON_LEOPARD 1
  48 #endif
  49 #include <Availability.h>
  50 #include <TargetConditionals.h>
  51 #endif
  52
  53 /* PLATFORM(WIN_OS) */
  54 /* Operating system level dependencies for Windows that should be used */
  55 /* regardless of operating environment */
  56 #if defined(WIN32) || defined(_WIN32)
  57 #define WTF_PLATFORM_WIN_OS 1
  58 #endif
  59
  60 /* PLATFORM(WINCE) */
  61 /* Operating system level dependencies for Windows CE that should be used */
  62 /* regardless of operating environment */
  63 /* Note that for this platform PLATFORM(WIN_OS) is also defined. */
  64 #if defined(_WIN32_WCE)
  65 #define WTF_PLATFORM_WINCE 1
  66 #endif
  67
  68 /* PLATFORM(LINUX) */
  69 /* Operating system level dependencies for Linux-like systems that */
  70 /* should be used regardless of operating environment */
  71 #ifdef __linux__
  72 #define WTF_PLATFORM_LINUX 1
  73 #endif
  74
  75 /* PLATFORM(FREEBSD) */
  76 /* Operating system level dependencies for FreeBSD-like systems that */
  77 /* should be used regardless of operating environment */
  78 #ifdef __FreeBSD__
  79 #define WTF_PLATFORM_FREEBSD 1
  80 #endif
  81
  82 /* PLATFORM(OPENBSD) */
  83 /* Operating system level dependencies for OpenBSD systems that */
  84 /* should be used regardless of operating environment */
  85 #ifdef __OpenBSD__
  86 #define WTF_PLATFORM_OPENBSD 1
  87 #endif
  88
  89 /* PLATFORM(SOLARIS) */
  90 /* Operating system level dependencies for Solaris that should be used */
  91 /* regardless of operating environment */
  92 #if defined(sun) || defined(__sun)
  93 #define WTF_PLATFORM_SOLARIS 1
  94 #endif
  95
  96 #if defined (__S60__) || defined (__SYMBIAN32__)
  97 /* we are cross-compiling, it is not really windows */
  98 #undef WTF_PLATFORM_WIN_OS
  99 #undef WTF_PLATFORM_WIN
 100 #undef WTF_PLATFORM_CAIRO
 101 #define WTF_PLATFORM_S60 1
 102 #define WTF_PLATFORM_SYMBIAN 1
 103 #endif
 104
 105
 106 /* PLATFORM(NETBSD) */
 107 /* Operating system level dependencies for NetBSD that should be used */
 108 /* regardless of operating environment */
 109 #if defined(__NetBSD__)
 110 #define WTF_PLATFORM_NETBSD 1
 111 #endif
 112
 113 /* PLATFORM(UNIX) */
 114 /* Operating system level dependencies for Unix-like systems that */
 115 /* should be used regardless of operating environment */
 116 #if   PLATFORM(DARWIN)     \
 117    || PLATFORM(FREEBSD)    \
 118    || PLATFORM(S60)        \
 119    || PLATFORM(NETBSD)     \
 120    || defined(unix)        \
 121    || defined(__unix)      \
 122    || defined(__unix__)    \
 123    || defined(_AIX)
 124 #define WTF_PLATFORM_UNIX 1
 125 #endif
 126
 127 /* Operating environments */
 128
 129 /* PLATFORM(CHROMIUM) */
 130 /* PLATFORM(QT) */
 131 /* PLATFORM(GTK) */
 132 /* PLATFORM(MAC) */
 133 /* PLATFORM(WIN) */
 134 #if defined(BUILDING_CHROMIUM__)
 135 #define WTF_PLATFORM_CHROMIUM 1
 136 #elif defined(BUILDING_QT__)
 137 #define WTF_PLATFORM_QT 1
 138
 139 /* PLATFORM(KDE) */
 140 #if defined(BUILDING_KDE__)
 141 #define WTF_PLATFORM_KDE 1
 142 #endif
 143
 144 #elif defined(BUILDING_WX__)
 145 #define WTF_PLATFORM_WX 1
 146 #elif defined(BUILDING_GTK__)
 147 #define WTF_PLATFORM_GTK 1
 148 #elif PLATFORM(DARWIN)
 149 #define WTF_PLATFORM_MAC 1
 150 #elif PLATFORM(WIN_OS)
 151 #define WTF_PLATFORM_WIN 1
 152 #endif
 153
 154 /* PLATFORM(IPHONE) */
 155 #if (defined(TARGET_OS_EMBEDDED) && TARGET_OS_EMBEDDED) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
 156 #define WTF_PLATFORM_IPHONE 1
 157 #endif
 158
 159 /* PLATFORM(IPHONE_SIMULATOR) */
 160 #if defined(TARGET_IPHONE_SIMULATOR) && TARGET_IPHONE_SIMULATOR
 161 #define WTF_PLATFORM_IPHONE 1
 162 #define WTF_PLATFORM_IPHONE_SIMULATOR 1
 163 #else
 164 #define WTF_PLATFORM_IPHONE_SIMULATOR 0
 165 #endif
 166
 167 #if !defined(WTF_PLATFORM_IPHONE)
 168 #define WTF_PLATFORM_IPHONE 0
 169 #endif
 170
 171 /* Graphics engines */
 172
 173 /* PLATFORM(CG) and PLATFORM(CI) */
 174 #define WTF_PLATFORM_CG 1
 175
 176 /* PLATFORM(SKIA) for Win/Linux, CG/CI for Mac */
 177 #if PLATFORM(CHROMIUM)
 178 #if PLATFORM(DARWIN)
 179 #define WTF_PLATFORM_CG 1
 180 #define WTF_PLATFORM_CI 1
 181 #define WTF_USE_ATSUI 1
 182 #else
 183 #define WTF_PLATFORM_SKIA 1
 184 #endif
 185 #endif
 186
 187 /* Makes PLATFORM(WIN) default to PLATFORM(CAIRO) */
 188 /* FIXME: This should be changed from a blacklist to a whitelist */
 189 #if !PLATFORM(MAC) && !PLATFORM(QT) && !PLATFORM(WX) && !PLATFORM(CHROMIUM)
 190 #define WTF_PLATFORM_CAIRO 1
 191 #endif
 192
 193 /* CPU */
 194
 195 /* PLATFORM(PPC) */
 196 #if   defined(__ppc__)     \
 197    || defined(__PPC__)     \
 198    || defined(__powerpc__) \
 199    || defined(__powerpc)   \
 200    || defined(__POWERPC__) \
 201    || defined(_M_PPC)      \
 202    || defined(__PPC)
 203 #define WTF_PLATFORM_PPC 1
 204 #define WTF_PLATFORM_BIG_ENDIAN 1
 205 #endif
 206
 207 /* PLATFORM(PPC64) */
 208 #if   defined(__ppc64__) \
 209    || defined(__PPC64__)
 210 #define WTF_PLATFORM_PPC64 1
 211 #define WTF_PLATFORM_BIG_ENDIAN 1
 212 #endif
 213
 214 /* PLATFORM(ARM) */
 215 #if   defined(arm) \
 216    || defined(__arm__)
 217 #define WTF_PLATFORM_ARM 1
 218 #if defined(__ARMEB__)
 219 #define WTF_PLATFORM_BIG_ENDIAN 1
 220 #elif !defined(__ARM_EABI__) && !defined(__ARMEB__) && !defined(__VFP_FP__)
 221 #define WTF_PLATFORM_MIDDLE_ENDIAN 1
 222 #endif
 223 #if !defined(__ARM_EABI__)
 224 #define WTF_PLATFORM_FORCE_PACK 1
 225 #endif
 226 #define ARM_ARCH_VERSION 3
 227 #if defined(__ARM_ARCH_4__) || defined(__ARM_ARCH_4T__)
 228 #undef ARM_ARCH_VERSION
 229 #define ARM_ARCH_VERSION 4
 230 #endif
 231 #if defined(__ARM_ARCH_5__) || defined(__ARM_ARCH_5T__) \
 232         || defined(__ARM_ARCH_5E__) || defined(__ARM_ARCH_5TE__) \
 233         || defined(__ARM_ARCH_5TEJ__)
 234 #undef ARM_ARCH_VERSION
 235 #define ARM_ARCH_VERSION 5
 236 #endif
 237 #if defined(__ARM_ARCH_6__) || defined(__ARM_ARCH_6J__) \
 238      || defined(__ARM_ARCH_6K__) || defined(__ARM_ARCH_6Z__) \
 239      || defined(__ARM_ARCH_6ZK__)
 240 #undef ARM_ARCH_VERSION
 241 #define ARM_ARCH_VERSION 6
 242 #endif
 243 #if defined(__ARM_ARCH_7A__)
 244 #undef ARM_ARCH_VERSION
 245 #define ARM_ARCH_VERSION 7
 246 #endif
 247 #endif /* ARM */
 248 #define PLATFORM_ARM_ARCH(N) (PLATFORM(ARM) && ARM_ARCH_VERSION >= N)
 249
 250 /* PLATFORM(X86) */
 251 #if   defined(__i386__) \
 252    || defined(i386)     \
 253    || defined(_M_IX86)  \
 254    || defined(_X86_)    \
 255    || defined(__THW_INTEL)
 256 #define WTF_PLATFORM_X86 1
 257 #endif
 258
 259 /* PLATFORM(X86_64) */
 260 #if   defined(__x86_64__) \
 261    || defined(_M_X64)
 262 #define WTF_PLATFORM_X86_64 1
 263 #endif
 264
 265 /* PLATFORM(SH4) */
 266 #if defined(__SH4__)
 267 #define WTF_PLATFORM_SH4 1
 268 #endif
 269
 270 /* PLATFORM(SPARC64) */
 271 #if defined(__sparc64__)
 272 #define WTF_PLATFORM_SPARC64 1
 273 #define WTF_PLATFORM_BIG_ENDIAN 1
 274 #endif
 275
 276 /* PLATFORM(WINCE) && PLATFORM(QT)
 277    We can not determine the endianess at compile time. For
 278    Qt for Windows CE the endianess is specified in the
 279    device specific makespec
 280 */
 281 #if PLATFORM(WINCE) && PLATFORM(QT)
 282 #   include <QtGlobal>
 283 #   undef WTF_PLATFORM_BIG_ENDIAN
 284 #   undef WTF_PLATFORM_MIDDLE_ENDIAN
 285 #   if Q_BYTE_ORDER == Q_BIG_EDIAN
 286 #       define WTF_PLATFORM_BIG_ENDIAN 1
 287 #   endif
 288 #endif
 289
 290 /* Compiler */
 291
 292 /* COMPILER(MSVC) */
 293 #if defined(_MSC_VER)
 294 #define WTF_COMPILER_MSVC 1
 295 #if _MSC_VER < 1400
 296 #define WTF_COMPILER_MSVC7 1
 297 #endif
 298 #endif
 299
 300 /* COMPILER(RVCT) */
 301 #if defined(__CC_ARM) || defined(__ARMCC__)
 302 #define WTF_COMPILER_RVCT 1
 303 #endif
 304
 305 /* COMPILER(GCC) */
 306 /* --gnu option of the RVCT compiler also defines __GNUC__ */
 307 #if defined(__GNUC__) && !COMPILER(RVCT)
 308 #define WTF_COMPILER_GCC 1
 309 #endif
 310
 311 /* COMPILER(MINGW) */
 312 #if defined(MINGW) || defined(__MINGW32__)
 313 #define WTF_COMPILER_MINGW 1
 314 #endif
 315
 316 /* COMPILER(BORLAND) */
 317 /* not really fully supported - is this relevant any more? */
 318 #if defined(__BORLANDC__)
 319 #define WTF_COMPILER_BORLAND 1
 320 #endif
 321
 322 /* COMPILER(CYGWIN) */
 323 /* not really fully supported - is this relevant any more? */
 324 #if defined(__CYGWIN__)
 325 #define WTF_COMPILER_CYGWIN 1
 326 #endif
 327
 328 /* COMPILER(WINSCW) */
 329 #if defined(__WINSCW__)
 330 #define WTF_COMPILER_WINSCW 1
 331 #endif
 332
 333 #if (PLATFORM(IPHONE) || PLATFORM(MAC) || PLATFORM(WIN)) && !defined(ENABLE_JSC_MULTIPLE_THREADS)
 334 #define ENABLE_JSC_MULTIPLE_THREADS 1
 335 #endif
 336
 337 /* for Unicode, KDE uses Qt */
 338 #if PLATFORM(KDE) || PLATFORM(QT)
 339 #define WTF_USE_QT4_UNICODE 1
 340 #elif PLATFORM(SYMBIAN)
 341 #define WTF_USE_SYMBIAN_UNICODE 1
 342 #elif PLATFORM(GTK)
 343 /* The GTK+ Unicode backend is configurable */
 344 #else
 345 #define WTF_USE_ICU_UNICODE 1
 346 #endif
 347
 348
 349 #if PLATFORM(CHROMIUM) && PLATFORM(DARWIN)
 350 #define WTF_PLATFORM_CF 1
 351 #define WTF_USE_PTHREADS 1
 352 #endif
 353
 354 #define DONT_FINALIZE_ON_MAIN_THREAD 1
 355 #define ENABLE_CONTEXT_MENUS 0
 356 #define ENABLE_DRAG_SUPPORT 0
 357 #define ENABLE_FTPDIR 1
 358 #define ENABLE_GEOLOCATION 1
 359 #define ENABLE_ICONDATABASE 0
 360 #define ENABLE_INSPECTOR 0
 361 #define ENABLE_JIT 0
 362 #define ENABLE_MAC_JAVA_BRIDGE 0
 363 #define ENABLE_NETSCAPE_PLUGIN_API 0
 364 #define ENABLE_ORIENTATION_EVENTS 1
 365 #define ENABLE_REPAINT_THROTTLING 1
 366 #define ENABLE_RESPECT_EXIF_ORIENTATION 1
 367 #define HAVE_READLINE 1
 368 #define HAVE_RUNLOOP_TIMER 0
 369 #define WTF_PLATFORM_CF 1
 370 #define WTF_USE_PTHREADS 1
 371
 372 #if PLATFORM(WIN)
 373 #define WTF_USE_WININET 1
 374 #endif
 375
 376 #if PLATFORM(WX)
 377 #define ENABLE_ASSEMBLER 1
 378 #define WTF_USE_CURL 1
 379 #define WTF_USE_PTHREADS 1
 380 #endif
 381
 382 #if PLATFORM(GTK)
 383 #if HAVE(PTHREAD_H)
 384 #define WTF_USE_PTHREADS 1
 385 #endif
 386 #endif
 387
 388 #if !defined(HAVE_ACCESSIBILITY)
 389 #define HAVE_ACCESSIBILITY 1
 390 #endif /* !defined(HAVE_ACCESSIBILITY) */
 391
 392 #if PLATFORM(UNIX) && !PLATFORM(SYMBIAN)
 393 #define HAVE_SIGNAL_H 1
 394 #endif
 395
 396 #if PLATFORM(DARWIN)
 397
 398 #define HAVE_ERRNO_H 1
 399 #define HAVE_LANGINFO_H 1
 400 #define HAVE_MMAP 1
 401 #define HAVE_MERGESORT 1
 402 #define HAVE_SBRK 1
 403 #define HAVE_STRINGS_H 1
 404 #define HAVE_SYS_PARAM_H 1
 405 #define HAVE_SYS_TIME_H 1
 406 #define HAVE_SYS_TIMEB_H 1
 407
 408
 409 #define HAVE_MADV_FREE 1
 410
 411 #elif PLATFORM(WIN_OS)
 412
 413 #define HAVE_FLOAT_H 1
 414 #if PLATFORM(WINCE)
 415 #define HAVE_ERRNO_H 0
 416 #else
 417 #define HAVE_SYS_TIMEB_H 1
 418 #endif
 419 #define HAVE_VIRTUALALLOC 1
 420
 421 #elif PLATFORM(SYMBIAN)
 422
 423 #define HAVE_ERRNO_H 1
 424 #define HAVE_MMAP 0
 425 #define HAVE_SBRK 1
 426
 427 #define HAVE_SYS_TIME_H 1
 428 #define HAVE_STRINGS_H 1
 429
 430 #if !COMPILER(RVCT)
 431 #define HAVE_SYS_PARAM_H 1
 432 #endif
 433
 434 #else
 435
 436 /* FIXME: is this actually used or do other platforms generate their own config.h? */
 437
 438 #define HAVE_ERRNO_H 1
 439 #define HAVE_LANGINFO_H 1
 440 #define HAVE_MMAP 1
 441 #define HAVE_SBRK 1
 442 #define HAVE_STRINGS_H 1
 443 #define HAVE_SYS_PARAM_H 1
 444 #define HAVE_SYS_TIME_H 1
 445
 446 #endif
 447
 448 /* ENABLE macro defaults */
 449
 450 /* fastMalloc match validation allows for runtime verification that
 451    new is matched by delete, fastMalloc is matched by fastFree, etc. */
 452 #if !defined(ENABLE_FAST_MALLOC_MATCH_VALIDATION)
 453 #define ENABLE_FAST_MALLOC_MATCH_VALIDATION 0
 454 #endif
 455
 456 #if !defined(ENABLE_ICONDATABASE)
 457 #define ENABLE_ICONDATABASE 1
 458 #endif
 459
 460 #if !defined(ENABLE_DATABASE)
 461 #define ENABLE_DATABASE 1
 462 #endif
 463
 464 #if !defined(ENABLE_JAVASCRIPT_DEBUGGER)
 465 #define ENABLE_JAVASCRIPT_DEBUGGER 1
 466 #endif
 467
 468 #if !defined(ENABLE_FTPDIR)
 469 #define ENABLE_FTPDIR 1
 470 #endif
 471
 472 #if !defined(ENABLE_DASHBOARD_SUPPORT)
 473 #define ENABLE_DASHBOARD_SUPPORT 0
 474 #endif
 475
 476 #if !defined(ENABLE_CONTEXT_MENUS)
 477 #define ENABLE_CONTEXT_MENUS 1
 478 #endif
 479
 480 #if !defined(ENABLE_DRAG_SUPPORT)
 481 #define ENABLE_DRAG_SUPPORT 1
 482 #endif
 483
 484 #if !defined(ENABLE_INSPECTOR)
 485 #define ENABLE_INSPECTOR 1
 486 #endif
 487
 488 #if !defined(ENABLE_MAC_JAVA_BRIDGE)
 489 #define ENABLE_MAC_JAVA_BRIDGE 0
 490 #endif
 491
 492 #if !defined(ENABLE_NETSCAPE_PLUGIN_API)
 493 #define ENABLE_NETSCAPE_PLUGIN_API 1
 494 #endif
 495
 496 #if !defined(WTF_USE_PLUGIN_HOST_PROCESS)
 497 #define WTF_USE_PLUGIN_HOST_PROCESS 0
 498 #endif
 499
 500 #if !defined(ENABLE_ORIENTATION_EVENTS)
 501 #define ENABLE_ORIENTATION_EVENTS 0
 502 #endif
 503
 504 #if !defined(ENABLE_RESPECT_EXIF_ORIENTATION)
 505 #define ENABLE_RESPECT_EXIF_ORIENTATION 0
 506 #endif
 507
 508 #if !defined(ENABLE_OPCODE_STATS)
 509 #define ENABLE_OPCODE_STATS 0
 510 #endif
 511
 512 #define ENABLE_SAMPLING_COUNTERS 0
 513 #define ENABLE_SAMPLING_FLAGS 0
 514 #define ENABLE_OPCODE_SAMPLING 0
 515 #define ENABLE_CODEBLOCK_SAMPLING 0
 516 #if ENABLE(CODEBLOCK_SAMPLING) && !ENABLE(OPCODE_SAMPLING)
 517 #error "CODEBLOCK_SAMPLING requires OPCODE_SAMPLING"
 518 #endif
 519 #if ENABLE(OPCODE_SAMPLING) || ENABLE(SAMPLING_FLAGS)
 520 #define ENABLE_SAMPLING_THREAD 1
 521 #endif
 522
 523 #if !defined(ENABLE_GEOLOCATION)
 524 #define ENABLE_GEOLOCATION 0
 525 #endif
 526
 527 #if !defined(ENABLE_TEXT_CARET)
 528 #define ENABLE_TEXT_CARET 1
 529 #endif
 530
 531 #if !defined(ENABLE_ON_FIRST_TEXTAREA_FOCUS_SELECT_ALL)
 532 #define ENABLE_ON_FIRST_TEXTAREA_FOCUS_SELECT_ALL 0
 533 #endif
 534
 535 #if !defined(WTF_USE_JSVALUE64) && !defined(WTF_USE_JSVALUE32) && !defined(WTF_USE_JSVALUE32_64)
 536 #if PLATFORM(X86_64) && PLATFORM(MAC)
 537 #define WTF_USE_JSVALUE64 1
 538 #elif PLATFORM(PPC64) || PLATFORM(QT) || (PLATFORM(IPHONE) && PLATFORM_ARM_ARCH(6) && !defined(__llvm__))
 539 // FIXME: <rdar://problem/7478149> gcc-4.2 compiler bug with USE(JSVALUE32_64) and armv6 target
 540 #define WTF_USE_JSVALUE32 1
 541 #else
 542 #define WTF_USE_JSVALUE32_64 1
 543 #endif
 544 #endif // !defined(WTF_USE_JSVALUE64) && !defined(WTF_USE_JSVALUE32) && !defined(WTF_USE_JSVALUE32_64)
 545
 546 #if !defined(ENABLE_REPAINT_THROTTLING)
 547 #define ENABLE_REPAINT_THROTTLING 0
 548 #endif
 549
 550 #if !defined(ENABLE_JIT)
 551 /* The JIT is tested & working on x86_64 Mac */
 552 #if PLATFORM(X86_64) && PLATFORM(MAC)
 553     #define ENABLE_JIT 1
 554 /* The JIT is tested & working on x86 Mac */
 555 #elif PLATFORM(X86) && PLATFORM(MAC)
 556     #define ENABLE_JIT 1
 557     #define WTF_USE_JIT_STUB_ARGUMENT_VA_LIST 1
 558 #elif PLATFORM_ARM_ARCH(7) && PLATFORM(IPHONE)
 559     /* Under development, temporarily disabled until 16Mb link range limit in assembler is fixed. */
 560     #define ENABLE_JIT 0
 561     #define ENABLE_JIT_OPTIMIZE_NATIVE_CALL 0
 562 /* The JIT is tested & working on x86 Windows */
 563 #elif PLATFORM(X86) && PLATFORM(WIN)
 564     #define ENABLE_JIT 1
 565 #endif
 566 #endif
 567
 568 #if ENABLE(JIT)
 569 #ifndef ENABLE_JIT_OPTIMIZE_CALL
 570 #define ENABLE_JIT_OPTIMIZE_CALL 1
 571 #endif
 572 #ifndef ENABLE_JIT_OPTIMIZE_NATIVE_CALL
 573 #define ENABLE_JIT_OPTIMIZE_NATIVE_CALL 1
 574 #endif
 575 #ifndef ENABLE_JIT_OPTIMIZE_PROPERTY_ACCESS
 576 #define ENABLE_JIT_OPTIMIZE_PROPERTY_ACCESS 1
 577 #endif
 578 #ifndef ENABLE_JIT_OPTIMIZE_METHOD_CALLS
 579 #define ENABLE_JIT_OPTIMIZE_METHOD_CALLS 1
 580 #endif
 581 #endif
 582
 583 #if PLATFORM(X86) && COMPILER(MSVC)
 584 #define JSC_HOST_CALL __fastcall
 585 #elif PLATFORM(X86) && COMPILER(GCC)
 586 #define JSC_HOST_CALL __attribute__ ((fastcall))
 587 #else
 588 #define JSC_HOST_CALL
 589 #endif
 590
 591 #if COMPILER(GCC) && !ENABLE(JIT)
 592 #define HAVE_COMPUTED_GOTO 1
 593 #endif
 594
 595 #if ENABLE(JIT) && defined(COVERAGE)
 596     #define WTF_USE_INTERPRETER 0
 597 #else
 598     #define WTF_USE_INTERPRETER 1
 599 #endif
 600
 601 /* Yet Another Regex Runtime. */
 602 /* YARR supports x86 & x86-64, and has been tested on Mac and Windows. */
 603 #if (!defined(ENABLE_YARR_JIT) && PLATFORM(X86) && PLATFORM(MAC)) \
 604  || (!defined(ENABLE_YARR_JIT) && PLATFORM(X86_64) && PLATFORM(MAC)) \
 605  /* Under development, temporarily disabled until 16Mb link range limit in assembler is fixed. */ \
 606  || (!defined(ENABLE_YARR_JIT) && PLATFORM_ARM_ARCH(7) && PLATFORM(IPHONE) && 0) \
 607  || (!defined(ENABLE_YARR_JIT) && PLATFORM(X86) && PLATFORM(WIN))
 608 #define ENABLE_YARR 1
 609 #define ENABLE_YARR_JIT 1
 610 #endif
 611 /* Sanity Check */
 612 #if ENABLE(YARR_JIT) && !ENABLE(YARR)
 613 #error "YARR_JIT requires YARR"
 614 #endif
 615
 616 #if ENABLE(JIT) || ENABLE(YARR_JIT)
 617 #define ENABLE_ASSEMBLER 1
 618 #endif
 619 /* Setting this flag prevents the assembler from using RWX memory; this may improve
 620    security but currectly comes at a significant performance cost. */
 621 #if PLATFORM_ARM_ARCH(7) && PLATFORM(IPHONE)
 622 #define ENABLE_ASSEMBLER_WX_EXCLUSIVE 1
 623 #else
 624 #define ENABLE_ASSEMBLER_WX_EXCLUSIVE 0
 625 #endif
 626
 627 #if !defined(ENABLE_PAN_SCROLLING) && PLATFORM(WIN_OS)
 628 #define ENABLE_PAN_SCROLLING 1
 629 #endif
 630
 631 #if !defined(ENABLE_ACTIVEX_TYPE_CONVERSION_WMPLAYER)
 632 #define ENABLE_ACTIVEX_TYPE_CONVERSION_WMPLAYER 1
 633 #endif
 634
 635 /* Use the QtXmlStreamReader implementation for XMLTokenizer */
 636 #if PLATFORM(QT)
 637 #if !ENABLE(XSLT)
 638 #define WTF_USE_QXMLSTREAM 1
 639 #endif
 640 #endif
 641
 642 #if !PLATFORM(QT)
 643 #define WTF_USE_FONT_FAST_PATH 1
 644 #endif
 645
 646 /* Accelerated compositing */
 647 #if PLATFORM(MAC)
 648 #if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
 649 #define WTF_USE_ACCELERATED_COMPOSITING 1
 650 #endif
 651 #endif
 652
 653 #define WTF_USE_ACCELERATED_COMPOSITING 1
 654
 655 #endif /* WTF_Platform_h */