1 /*
   2  * Copyright (C) 2006-2017 Apple Inc. All rights reserved.
   3  * Copyright (C) 2007-2009 Torch Mobile, Inc.
   4  * Copyright (C) 2010, 2011 Research In Motion Limited. All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  *
  15  * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
  16  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  18  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
  19  * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
  21  * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
  22  * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
  23  * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  25  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  26  */
  27 
  28 #ifndef WTF_Platform_h
  29 #define WTF_Platform_h
  30 
  31 /* Include compiler specific macros */
  32 #include <wtf/Compiler.h>
  33 
  34 /* ==== PLATFORM handles OS, operating environment, graphics API, and
  35    CPU. This macro will be phased out in favor of platform adaptation
  36    macros, policy decision macros, and top-level port definitions. ==== */
  37 #define PLATFORM(WTF_FEATURE) (defined WTF_PLATFORM_##WTF_FEATURE  && WTF_PLATFORM_##WTF_FEATURE)
  38 
  39 
  40 /* ==== Platform adaptation macros: these describe properties of the target environment. ==== */
  41 
  42 /* CPU() - the target CPU architecture */
  43 #define CPU(WTF_FEATURE) (defined WTF_CPU_##WTF_FEATURE  && WTF_CPU_##WTF_FEATURE)
  44 /* HAVE() - specific system features (headers, functions or similar) that are present or not */
  45 #define HAVE(WTF_FEATURE) (defined HAVE_##WTF_FEATURE  && HAVE_##WTF_FEATURE)
  46 /* OS() - underlying operating system; only to be used for mandated low-level services like
  47    virtual memory, not to choose a GUI toolkit */
  48 #define OS(WTF_FEATURE) (defined WTF_OS_##WTF_FEATURE  && WTF_OS_##WTF_FEATURE)
  49 
  50 
  51 /* ==== Policy decision macros: these define policy choices for a particular port. ==== */
  52 
  53 /* USE() - use a particular third-party library or optional OS service */
  54 #define USE(WTF_FEATURE) (defined USE_##WTF_FEATURE  && USE_##WTF_FEATURE)
  55 /* ENABLE() - turn on a specific feature of WebKit */
  56 #define ENABLE(WTF_FEATURE) (defined ENABLE_##WTF_FEATURE  && ENABLE_##WTF_FEATURE)
  57 
  58 #if PLATFORM(JAVA) // tav todo temp
  59 #define JS_EXPORT_PRIVATE
  60 #endif
  61 
  62 /* COMPILER(SUNCC) */
  63 #if defined(__SUNPRO_CC) || defined(__SUNPRO_C)
  64 #define WTF_COMPILER_SUNCC 1
  65 #endif
  66 
  67 /* ==== CPU() - the target CPU architecture ==== */
  68 
  69 /* This also defines CPU(BIG_ENDIAN) or CPU(MIDDLE_ENDIAN) or neither, as appropriate. */
  70 
  71 /* CPU(ALPHA) - DEC Alpha */
  72 #if defined(__alpha__)
  73 #define WTF_CPU_ALPHA 1
  74 #endif
  75 
  76 /* CPU(HPPA) - HP PA-RISC */
  77 #if defined(__hppa__) || defined(__hppa64__)
  78 #define WTF_CPU_HPPA 1
  79 #define WTF_CPU_BIG_ENDIAN 1
  80 #endif
  81 
  82 /* CPU(IA64) - Itanium / IA-64 */
  83 #if defined(__ia64__)
  84 #define WTF_CPU_IA64 1
  85 /* 32-bit mode on Itanium */
  86 #if !defined(__LP64__)
  87 #define WTF_CPU_IA64_32 1
  88 #endif
  89 #endif
  90 
  91 /* CPU(MIPS) - MIPS 32-bit and 64-bit */
  92 #if (defined(mips) || defined(__mips__) || defined(MIPS) || defined(_MIPS_) || defined(__mips64))
  93 #if defined(_ABI64) && (_MIPS_SIM == _ABI64)
  94 #define WTF_CPU_MIPS64 1
  95 #define WTF_MIPS_ARCH __mips64
  96 #else
  97 #define WTF_CPU_MIPS 1
  98 #define WTF_MIPS_ARCH __mips
  99 #endif
 100 #if defined(__MIPSEB__)
 101 #define WTF_CPU_BIG_ENDIAN 1
 102 #endif
 103 #define WTF_MIPS_PIC (defined __PIC__)
 104 #define WTF_MIPS_ISA(v) (defined WTF_MIPS_ARCH && WTF_MIPS_ARCH == v)
 105 #define WTF_MIPS_ISA_AT_LEAST(v) (defined WTF_MIPS_ARCH && WTF_MIPS_ARCH >= v)
 106 #define WTF_MIPS_ARCH_REV __mips_isa_rev
 107 #define WTF_MIPS_ISA_REV(v) (defined WTF_MIPS_ARCH_REV && WTF_MIPS_ARCH_REV == v)
 108 #define WTF_MIPS_DOUBLE_FLOAT (defined __mips_hard_float && !defined __mips_single_float)
 109 #define WTF_MIPS_FP64 (defined __mips_fpr && __mips_fpr == 64)
 110 /* MIPS requires allocators to use aligned memory */
 111 #define USE_ARENA_ALLOC_ALIGNMENT_INTEGER 1
 112 #endif /* MIPS */
 113 
 114 /* CPU(PPC64) - PowerPC 64-bit Big Endian */
 115 #if (  defined(__ppc64__)      \
 116     || defined(__PPC64__))     \
 117     && defined(__BYTE_ORDER__) \
 118     && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
 119 #define WTF_CPU_PPC64 1
 120 #define WTF_CPU_BIG_ENDIAN 1
 121 #endif
 122 
 123 /* CPU(PPC64) - PowerPC 64-bit Little Endian */
 124 #if (   defined(__ppc64__)     \
 125     || defined(__PPC64__)      \
 126     || defined(__ppc64le__)    \
 127     || defined(__PPC64LE__))   \
 128     && defined(__BYTE_ORDER__) \
 129     && (__BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
 130 #define WTF_CPU_PPC64LE 1
 131 #endif
 132 
 133 /* CPU(PPC) - PowerPC 32-bit */
 134 #if (  defined(__ppc__)        \
 135     || defined(__PPC__)        \
 136     || defined(__powerpc__)    \
 137     || defined(__powerpc)      \
 138     || defined(__POWERPC__)    \
 139     || defined(_M_PPC)         \
 140     || defined(__PPC))         \
 141     && !CPU(PPC64)             \
 142     && defined(__BYTE_ORDER__) \
 143     && (__BYTE_ORDER__ == __ORDER_BIG_ENDIAN__)
 144 #define WTF_CPU_PPC 1
 145 #define WTF_CPU_BIG_ENDIAN 1
 146 #endif
 147 
 148 /* CPU(SH4) - SuperH SH-4 */
 149 #if defined(__SH4__)
 150 #define WTF_CPU_SH4 1
 151 #endif
 152 
 153 /* CPU(S390X) - S390 64-bit */
 154 #if defined(__s390x__)
 155 #define WTF_CPU_S390X 1
 156 #define WTF_CPU_BIG_ENDIAN 1
 157 #endif
 158 
 159 /* CPU(S390) - S390 32-bit */
 160 #if (  defined(__s390__)        \
 161     && !CPU(S390X))
 162 #define WTF_CPU_S390 1
 163 #define WTF_CPU_BIG_ENDIAN 1
 164 #endif
 165 
 166 /* CPU(X86) - i386 / x86 32-bit */
 167 #if   defined(__i386__) \
 168     || defined(i386)     \
 169     || defined(_M_IX86)  \
 170     || defined(_X86_)    \
 171     || defined(__THW_INTEL)
 172 #define WTF_CPU_X86 1
 173 
 174 #if defined(__SSE2__) || (defined(_M_IX86_FP) && _M_IX86_FP >= 2)
 175 #define WTF_CPU_X86_SSE2 1
 176 #endif
 177 
 178 #endif
 179 
 180 /* CPU(X86_64) - AMD64 / Intel64 / x86_64 64-bit */
 181 #if   defined(__x86_64__) \
 182     || defined(_M_X64)
 183 #define WTF_CPU_X86_64 1
 184 #define WTF_CPU_X86_SSE2 1
 185 #endif
 186 
 187 /* CPU(ARM64) - Apple */
 188 #if (defined(__arm64__) && defined(__APPLE__)) || defined(__aarch64__)
 189 #define WTF_CPU_ARM64 1
 190 
 191 #if defined(__arm64e__)
 192 #define WTF_CPU_ARM64E 1
 193 #endif
 194 #endif
 195 
 196 /* CPU(ARM) - ARM, any version*/
 197 #define WTF_ARM_ARCH_AT_LEAST(N) (CPU(ARM) && WTF_ARM_ARCH_VERSION >= N)
 198 
 199 #if   defined(arm) \
 200     || defined(__arm__) \
 201     || defined(ARM) \
 202     || defined(_ARM_)
 203 #define WTF_CPU_ARM 1
 204 
 205 #if defined(__ARM_PCS_VFP)
 206 #define WTF_CPU_ARM_HARDFP 1
 207 #endif
 208 
 209 #if defined(__ARMEB__)
 210 #define WTF_CPU_BIG_ENDIAN 1
 211 
 212 #elif !defined(__ARM_EABI__) \
 213     && !defined(__EABI__) \
 214     && !defined(__VFP_FP__) \
 215     && !defined(_WIN32_WCE)
 216 #define WTF_CPU_MIDDLE_ENDIAN 1
 217 
 218 #endif
 219 
 220 /* Set WTF_ARM_ARCH_VERSION */
 221 #if   defined(__ARM_ARCH_4__) \
 222     || defined(__ARM_ARCH_4T__) \
 223     || defined(__MARM_ARMV4__)
 224 #define WTF_ARM_ARCH_VERSION 4
 225 
 226 #elif defined(__ARM_ARCH_5__) \
 227     || defined(__ARM_ARCH_5T__) \
 228     || defined(__MARM_ARMV5__)
 229 #define WTF_ARM_ARCH_VERSION 5
 230 
 231 #elif defined(__ARM_ARCH_5E__) \
 232     || defined(__ARM_ARCH_5TE__) \
 233     || defined(__ARM_ARCH_5TEJ__)
 234 #define WTF_ARM_ARCH_VERSION 5
 235 /*ARMv5TE requires allocators to use aligned memory*/
 236 #define USE_ARENA_ALLOC_ALIGNMENT_INTEGER 1
 237 
 238 #elif defined(__ARM_ARCH_6__) \
 239     || defined(__ARM_ARCH_6J__) \
 240     || defined(__ARM_ARCH_6K__) \
 241     || defined(__ARM_ARCH_6Z__) \
 242     || defined(__ARM_ARCH_6ZK__) \
 243     || defined(__ARM_ARCH_6T2__) \
 244     || defined(__ARMV6__)
 245 #define WTF_ARM_ARCH_VERSION 6
 246 
 247 #elif defined(__ARM_ARCH_7A__) \
 248     || defined(__ARM_ARCH_7K__) \
 249     || defined(__ARM_ARCH_7R__) \
 250     || defined(__ARM_ARCH_7S__)
 251 #define WTF_ARM_ARCH_VERSION 7
 252 
 253 #elif defined(__ARM_ARCH_8__) \
 254     || defined(__ARM_ARCH_8A__)
 255 #define WTF_ARM_ARCH_VERSION 8
 256 
 257 /* MSVC sets _M_ARM */
 258 #elif defined(_M_ARM)
 259 #define WTF_ARM_ARCH_VERSION _M_ARM
 260 
 261 /* RVCT sets _TARGET_ARCH_ARM */
 262 #elif defined(__TARGET_ARCH_ARM)
 263 #define WTF_ARM_ARCH_VERSION __TARGET_ARCH_ARM
 264 
 265 #if defined(__TARGET_ARCH_5E) \
 266     || defined(__TARGET_ARCH_5TE) \
 267     || defined(__TARGET_ARCH_5TEJ)
 268 /*ARMv5TE requires allocators to use aligned memory*/
 269 #define USE_ARENA_ALLOC_ALIGNMENT_INTEGER 1
 270 #endif
 271 
 272 #else
 273 #define WTF_ARM_ARCH_VERSION 0
 274 
 275 #endif
 276 
 277 /* Set WTF_THUMB_ARCH_VERSION */
 278 #if   defined(__ARM_ARCH_4T__)
 279 #define WTF_THUMB_ARCH_VERSION 1
 280 
 281 #elif defined(__ARM_ARCH_5T__) \
 282     || defined(__ARM_ARCH_5TE__) \
 283     || defined(__ARM_ARCH_5TEJ__)
 284 #define WTF_THUMB_ARCH_VERSION 2
 285 
 286 #elif defined(__ARM_ARCH_6J__) \
 287     || defined(__ARM_ARCH_6K__) \
 288     || defined(__ARM_ARCH_6Z__) \
 289     || defined(__ARM_ARCH_6ZK__) \
 290     || defined(__ARM_ARCH_6M__)
 291 #define WTF_THUMB_ARCH_VERSION 3
 292 
 293 #elif defined(__ARM_ARCH_6T2__) \
 294     || defined(__ARM_ARCH_7__) \
 295     || defined(__ARM_ARCH_7A__) \
 296     || defined(__ARM_ARCH_7K__) \
 297     || defined(__ARM_ARCH_7M__) \
 298     || defined(__ARM_ARCH_7R__) \
 299     || defined(__ARM_ARCH_7S__)
 300 #define WTF_THUMB_ARCH_VERSION 4
 301 
 302 /* RVCT sets __TARGET_ARCH_THUMB */
 303 #elif defined(__TARGET_ARCH_THUMB)
 304 #define WTF_THUMB_ARCH_VERSION __TARGET_ARCH_THUMB
 305 
 306 #else
 307 #define WTF_THUMB_ARCH_VERSION 0
 308 #endif
 309 
 310 
 311 /* CPU(ARMV5_OR_LOWER) - ARM instruction set v5 or earlier */
 312 /* On ARMv5 and below the natural alignment is required.
 313    And there are some other differences for v5 or earlier. */
 314 #if !defined(ARMV5_OR_LOWER) && !WTF_ARM_ARCH_AT_LEAST(6)
 315 #define WTF_CPU_ARMV5_OR_LOWER 1
 316 #endif
 317 
 318 
 319 /* CPU(ARM_TRADITIONAL) - Thumb2 is not available, only traditional ARM (v4 or greater) */
 320 /* CPU(ARM_THUMB2) - Thumb2 instruction set is available */
 321 /* Only one of these will be defined. */
 322 #if !defined(WTF_CPU_ARM_TRADITIONAL) && !defined(WTF_CPU_ARM_THUMB2)
 323 #  if defined(thumb2) || defined(__thumb2__) \
 324     || ((defined(__thumb) || defined(__thumb__)) && WTF_THUMB_ARCH_VERSION == 4)
 325 #    define WTF_CPU_ARM_TRADITIONAL 0
 326 #    define WTF_CPU_ARM_THUMB2 1
 327 #  elif WTF_ARM_ARCH_AT_LEAST(4)
 328 #    define WTF_CPU_ARM_TRADITIONAL 1
 329 #    define WTF_CPU_ARM_THUMB2 0
 330 #  else
 331 #    error "Not supported ARM architecture"
 332 #  endif
 333 #elif CPU(ARM_TRADITIONAL) && CPU(ARM_THUMB2) /* Sanity Check */
 334 #  error "Cannot use both of WTF_CPU_ARM_TRADITIONAL and WTF_CPU_ARM_THUMB2 platforms"
 335 #endif /* !defined(WTF_CPU_ARM_TRADITIONAL) && !defined(WTF_CPU_ARM_THUMB2) */
 336 
 337 #if defined(__ARM_NEON__) && !defined(WTF_CPU_ARM_NEON)
 338 #define WTF_CPU_ARM_NEON 1
 339 #endif
 340 
 341 #if CPU(ARM_NEON)
 342 /* All NEON intrinsics usage can be disabled by this macro. */
 343 #define HAVE_ARM_NEON_INTRINSICS 1
 344 #endif
 345 
 346 #if (defined(__VFP_FP__) && !defined(__SOFTFP__))
 347 #define WTF_CPU_ARM_VFP 1
 348 #endif
 349 
 350 #if defined(__ARM_ARCH_7K__)
 351 #define WTF_CPU_APPLE_ARMV7K 1
 352 #endif
 353 
 354 #if defined(__ARM_ARCH_7S__)
 355 #define WTF_CPU_APPLE_ARMV7S 1
 356 #endif
 357 
 358 #if defined(__ARM_ARCH_EXT_IDIV__) || CPU(APPLE_ARMV7S)
 359 #define HAVE_ARM_IDIV_INSTRUCTIONS 1
 360 #endif
 361 
 362 #endif /* ARM */
 363 
 364 #if CPU(ARM) || CPU(MIPS) || CPU(SH4) || CPU(ALPHA) || CPU(HPPA)
 365 #define WTF_CPU_NEEDS_ALIGNED_ACCESS 1
 366 #endif
 367 
 368 /* ==== OS() - underlying operating system; only to be used for mandated low-level services like
 369    virtual memory, not to choose a GUI toolkit ==== */
 370 
 371 /* OS(AIX) - AIX */
 372 #ifdef _AIX
 373 #define WTF_OS_AIX 1
 374 #endif
 375 
 376 /* OS(DARWIN) - Any Darwin-based OS, including Mac OS X and iPhone OS */
 377 #ifdef __APPLE__
 378 #define WTF_OS_DARWIN 1
 379 
 380 #include <Availability.h>
 381 #include <AvailabilityMacros.h>
 382 #include <TargetConditionals.h>
 383 #endif
 384 
 385 /* OS(IOS) - iOS */
 386 /* OS(MAC_OS_X) - Mac OS X (not including iOS) */
 387 #if OS(DARWIN) && ((defined(TARGET_OS_EMBEDDED) && TARGET_OS_EMBEDDED) \
 388     || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)                 \
 389     || (defined(TARGET_IPHONE_SIMULATOR) && TARGET_IPHONE_SIMULATOR))
 390 #define WTF_OS_IOS 1
 391 #elif OS(DARWIN) && defined(TARGET_OS_MAC) && TARGET_OS_MAC
 392 #define WTF_OS_MAC_OS_X 1
 393 #endif
 394 
 395 /* OS(FREEBSD) - FreeBSD */
 396 #if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
 397 #define WTF_OS_FREEBSD 1
 398 #endif
 399 
 400 /* OS(HURD) - GNU/Hurd */
 401 #ifdef __GNU__
 402 #define WTF_OS_HURD 1
 403 #endif
 404 
 405 /* OS(LINUX) - Linux */
 406 #ifdef __linux__
 407 #define WTF_OS_LINUX 1
 408 #endif
 409 
 410 /* OS(NETBSD) - NetBSD */
 411 #if defined(__NetBSD__)
 412 #define WTF_OS_NETBSD 1
 413 #endif
 414 
 415 /* OS(OPENBSD) - OpenBSD */
 416 #ifdef __OpenBSD__
 417 #define WTF_OS_OPENBSD 1
 418 #endif
 419 
 420 /* OS(SOLARIS) - Solaris */
 421 #if defined(sun) || defined(__sun)
 422 #define WTF_OS_SOLARIS 1
 423 #endif
 424 
 425 /* OS(WINDOWS) - Any version of Windows */
 426 #if defined(WIN32) || defined(_WIN32)
 427 #define WTF_OS_WINDOWS 1
 428 #endif
 429 
 430 #define WTF_OS_WIN ERROR "USE WINDOWS WITH OS NOT WIN"
 431 #define WTF_OS_MAC ERROR "USE MAC_OS_X WITH OS NOT MAC"
 432 
 433 /* OS(UNIX) - Any Unix-like system */
 434 #if    OS(AIX)              \
 435     || OS(DARWIN)           \
 436     || OS(FREEBSD)          \
 437     || OS(HURD)             \
 438     || OS(LINUX)            \
 439     || OS(NETBSD)           \
 440     || OS(OPENBSD)          \
 441     || OS(SOLARIS)          \
 442     || defined(unix)        \
 443     || defined(__unix)      \
 444     || defined(__unix__)
 445 #define WTF_OS_UNIX 1
 446 #endif
 447 
 448 /* Operating environments */
 449 
 450 /* Export macro support. Detects the attributes available for shared library symbol export
 451    decorations. */
 452 #if OS(WINDOWS) || (COMPILER_HAS_CLANG_DECLSPEC(dllimport) && COMPILER_HAS_CLANG_DECLSPEC(dllexport))
 453 #define USE_DECLSPEC_ATTRIBUTE 1
 454 #define USE_VISIBILITY_ATTRIBUTE 0
 455 #elif defined(__GNUC__)
 456 #define USE_DECLSPEC_ATTRIBUTE 0
 457 #define USE_VISIBILITY_ATTRIBUTE 1
 458 #else
 459 #define USE_DECLSPEC_ATTRIBUTE 0
 460 #define USE_VISIBILITY_ATTRIBUTE 0
 461 #endif
 462 
 463 /* Standard libraries */
 464 #if defined(HAVE_FEATURES_H) && HAVE_FEATURES_H
 465 /* If the included features.h is glibc's one, __GLIBC__ is defined. */
 466 #include <features.h>
 467 #endif
 468 
 469 /* FIXME: these are all mixes of OS, operating environment and policy choices. */
 470 /* PLATFORM(GTK) */
 471 /* PLATFORM(MAC) */
 472 /* PLATFORM(IOS) */
 473 /* PLATFORM(IOS_SIMULATOR) */
 474 /* PLATFORM(WIN) */
 475 #if defined(BUILDING_GTK__)
 476 #define WTF_PLATFORM_GTK 1
 477 #elif defined(BUILDING_JAVA__)
 478 #define WTF_PLATFORM_JAVA 1
 479 #elif defined(BUILDING_WPE__)
 480 #define WTF_PLATFORM_WPE 1
 481 #elif defined(BUILDING_JSCONLY__)
 482 /* JSCOnly does not provide PLATFORM() macro */
 483 #elif OS(MAC_OS_X)
 484 #define WTF_PLATFORM_MAC 1
 485 #elif OS(IOS)
 486 #define WTF_PLATFORM_IOS 1
 487 #if defined(TARGET_IPHONE_SIMULATOR) && TARGET_IPHONE_SIMULATOR
 488 #define WTF_PLATFORM_IOS_SIMULATOR 1
 489 #endif
 490 #elif OS(WINDOWS)
 491 #define WTF_PLATFORM_WIN 1
 492 #endif
 493 
 494 /* PLATFORM(COCOA) */
 495 #if PLATFORM(MAC) || PLATFORM(IOS)
 496 #define WTF_PLATFORM_COCOA 1
 497 #endif
 498 
 499 #if PLATFORM(COCOA)
 500 #if defined __has_include && __has_include(<CoreFoundation/CFPriv.h>)
 501 #define USE_APPLE_INTERNAL_SDK 1
 502 #endif
 503 #endif
 504 
 505 /* PLATFORM(APPLETV) */
 506 #if defined(TARGET_OS_TV) && TARGET_OS_TV
 507 #define WTF_PLATFORM_APPLETV 1
 508 #endif
 509 
 510 /* PLATFORM(WATCHOS) */
 511 #if defined(TARGET_OS_WATCH) && TARGET_OS_WATCH
 512 #define WTF_PLATFORM_WATCHOS 1
 513 #endif
 514 
 515 /* Graphics engines */
 516 
 517 /* USE(CG) and PLATFORM(CI) */
 518 #if PLATFORM(COCOA) || (PLATFORM(WIN) && !USE(WINGDI) && !PLATFORM(WIN_CAIRO) && !USE(DIRECT2D))
 519 #define USE_CG 1
 520 #endif
 521 #if PLATFORM(COCOA) || (PLATFORM(WIN) && USE(CG) && !USE(DIRECT2D))
 522 #define USE_CA 1
 523 #endif
 524 
 525 #if PLATFORM(GTK) || PLATFORM(WPE)
 526 #define USE_CAIRO 1
 527 #define USE_GLIB 1
 528 #define USE_FREETYPE 1
 529 #define USE_HARFBUZZ 1
 530 #define USE_SOUP 1
 531 #define USE_WEBP 1
 532 #define USE_FILE_LOCK 1
 533 #endif
 534 
 535 #if PLATFORM(GTK)
 536 #define GLIB_VERSION_MIN_REQUIRED GLIB_VERSION_2_36
 537 #endif
 538 
 539 #if PLATFORM(GTK) && !defined(GTK_API_VERSION_2)
 540 #define GDK_VERSION_MIN_REQUIRED GDK_VERSION_3_6
 541 #endif
 542 
 543 #if USE(SOUP)
 544 #define SOUP_VERSION_MIN_REQUIRED SOUP_VERSION_2_42
 545 #endif
 546 
 547 /* On Windows, use QueryPerformanceCounter by default */
 548 #if OS(WINDOWS)
 549 #define USE_QUERY_PERFORMANCE_COUNTER  1
 550 #endif
 551 
 552 #if PLATFORM(COCOA)
 553 
 554 #define USE_CF 1
 555 #define USE_FOUNDATION 1
 556 #define USE_NETWORK_CFDATA_ARRAY_CALLBACK 1
 557 #define ENABLE_USER_MESSAGE_HANDLERS 1
 558 #define HAVE_OUT_OF_PROCESS_LAYER_HOSTING 1
 559 #define HAVE_DTRACE 0
 560 #define USE_FILE_LOCK 1
 561 
 562 #if !PLATFORM(WATCHOS) && !PLATFORM(APPLETV)
 563 #define ENABLE_DATA_DETECTION 1
 564 #define HAVE_AVKIT 1
 565 #define HAVE_PARENTAL_CONTROLS 1
 566 #endif
 567 
 568 #endif
 569 
 570 #if PLATFORM(MAC)
 571 
 572 #if __MAC_OS_X_VERSION_MIN_REQUIRED < 101200
 573 #define USE_QTKIT 1
 574 #else
 575 #define USE_QTKIT 0
 576 #endif
 577 
 578 #define USE_APPKIT 1
 579 #define HAVE_RUNLOOP_TIMER 1
 580 #define HAVE_SEC_IDENTITY 1
 581 #define HAVE_SEC_KEYCHAIN 1
 582 
 583 #if CPU(X86_64)
 584 #define HAVE_NETWORK_EXTENSION 1
 585 #define USE_PLUGIN_HOST_PROCESS 1
 586 #endif
 587 
 588 /* OS X defines a series of platform macros for debugging. */
 589 /* Some of them are really annoying because they use common names (e.g. check()). */
 590 /* Disable those macros so that we are not limited in how we name methods and functions. */
 591 #undef __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES
 592 #define __ASSERT_MACROS_DEFINE_VERSIONS_WITHOUT_UNDERSCORES 0
 593 
 594 #endif /* PLATFORM(MAC) */
 595 
 596 #if PLATFORM(IOS)
 597 
 598 #define HAVE_NETWORK_EXTENSION 1
 599 #define HAVE_READLINE 1
 600 #define USE_UIKIT_EDITING 1
 601 #define USE_WEB_THREAD 1
 602 
 603 #if !PLATFORM(WATCHOS) && !PLATFORM(APPLETV)
 604 #define USE_QUICK_LOOK 1
 605 #endif
 606 
 607 #if TARGET_OS_IOS
 608 #define HAVE_APP_LINKS 1
 609 #endif
 610 
 611 #if CPU(ARM64)
 612 #define ENABLE_JIT_CONSTANT_BLINDING 0
 613 #endif
 614 
 615 #if CPU(ARM_NEON)
 616 #undef HAVE_ARM_NEON_INTRINSICS
 617 #define HAVE_ARM_NEON_INTRINSICS 0
 618 #endif
 619 
 620 #endif /* PLATFORM(IOS) */
 621 
 622 #if PLATFORM(JAVA)
 623 #define USE_NPOBJECT 0
 624 #define ENABLE_JAVA_BRIDGE 1
 625 #define ENABLE_JAVA_JSC 1
 626 #if !OS(WINDOWS)
 627 #define USE_PTHREADS 1
 628 #define HAVE_PTHREAD_RWLOCK 1
 629 #endif /* !OS(WINDOWS) */
 630 #if defined(__TARGET_ARCH_ARM)
 631 #define WTF_ARM_ARCH_VERSION __TARGET_ARCH_ARM
 632 #endif /* __TARGET_ARCH_ARM */
 633 #if defined(__TARGET_ARCH_THUMB)
 634 #define WTF_THUMB_ARCH_VERSION __TARGET_ARCH_THUMB
 635 #endif /* __TARGET_ARCH_THUMB */
 636 #if defined(__TARGET_ARCH_ARM) && defined(__TARGET_ARCH_THUMB) && WTF_THUMB_ARCH_VERSION >= 4
 637 #define WTF_CPU_ARM_TRADITIONAL 0
 638 #define WTF_CPU_ARM_THUMB2 1
 639 #endif /* THUMB2 */
 640 #if COMPILER(MSVC) && _MSC_VER <= 1800
 641 #error "Compiler is not supported, use MSVC 2015 or higher"
 642 #endif
 643 #endif /* PLATFORM(JAVA) */
 644 
 645 #if (PLATFORM(WIN) && !USE(WINGDI) && !PLATFORM(JAVA)) || (PLATFORM(JAVA) && OS(DARWIN))
 646 #define USE_CF 1
 647 #endif
 648 
 649 #if PLATFORM(WIN) && !USE(WINGDI) && !PLATFORM(WIN_CAIRO)
 650 #define USE_CFURLCONNECTION 1
 651 #endif
 652 
 653 #if !defined(HAVE_ACCESSIBILITY)
 654 #if PLATFORM(COCOA) || PLATFORM(WIN) || PLATFORM(GTK) || PLATFORM(WPE)
 655 #define HAVE_ACCESSIBILITY 1
 656 #endif
 657 #endif /* !defined(HAVE_ACCESSIBILITY) */
 658 
 659 /* FIXME: Remove after CMake build enabled on Darwin */
 660 #if OS(DARWIN)
 661 #define HAVE_ERRNO_H 1
 662 #define HAVE_LANGINFO_H 1
 663 #define HAVE_LOCALTIME_R 1
 664 #define HAVE_MMAP 1
 665 #define HAVE_REGEX_H 1
 666 #define HAVE_SIGNAL_H 1
 667 #define HAVE_STAT_BIRTHTIME 1
 668 #define HAVE_STRINGS_H 1
 669 #define HAVE_STRNSTR 1
 670 #define HAVE_SYS_PARAM_H 1
 671 #define HAVE_SYS_TIME_H 1
 672 #define HAVE_TM_GMTOFF 1
 673 #define HAVE_TM_ZONE 1
 674 #define HAVE_TIMEGM 1
 675 
 676 #if CPU(X86_64) || CPU(ARM64)
 677 #define HAVE_INT128_T 1
 678 #endif
 679 #endif /* OS(DARWIN) */
 680 
 681 #if OS(UNIX)
 682 #define USE_PTHREADS 1
 683 #endif /* OS(UNIX) */
 684 
 685 #if OS(DARWIN)
 686 #if !PLATFORM(JAVA)
 687 #define HAVE_DISPATCH_H 1 // todo tav enable when building w/ clang
 688 #endif
 689 #define HAVE_MADV_FREE 1
 690 #define HAVE_MADV_FREE_REUSE 1
 691 #define HAVE_MADV_DONTNEED 1
 692 #define HAVE_MERGESORT 1
 693 #define HAVE_PTHREAD_SETNAME_NP 1
 694 #define HAVE_READLINE 1
 695 #define HAVE_SYS_TIMEB_H 1
 696 
 697 #if __has_include(<mach/mach_exc.defs>) && !(PLATFORM(WATCHOS) || PLATFORM(APPLETV))
 698 #define HAVE_MACH_EXCEPTIONS 1
 699 #endif
 700 
 701 #if !PLATFORM(GTK)
 702 #define USE_ACCELERATE 1
 703 #endif
 704 #if !PLATFORM(IOS)
 705 #define HAVE_HOSTED_CORE_ANIMATION 1
 706 #endif
 707 
 708 #endif /* OS(DARWIN) */
 709 
 710 #if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200) || PLATFORM(IOS)
 711 #define HAVE_CFNETWORK_STORAGE_PARTITIONING 1
 712 #endif
 713 
 714 #if OS(DARWIN) || ((OS(FREEBSD) || defined(__GLIBC__)) && (CPU(X86) || CPU(X86_64) || CPU(ARM) || CPU(ARM64) || CPU(MIPS)))
 715 #define HAVE_MACHINE_CONTEXT 1
 716 #endif
 717 
 718 #if OS(DARWIN) || (OS(LINUX) && defined(__GLIBC__) && !defined(__UCLIBC__))
 719 #define HAVE_BACKTRACE 1
 720 #endif
 721 
 722 #if OS(DARWIN) || OS(LINUX)
 723 #if PLATFORM(GTK)
 724 #if defined(__GLIBC__) && !defined(__UCLIBC__)
 725 #define HAVE_BACKTRACE_SYMBOLS 1
 726 #endif
 727 #endif /* PLATFORM(GTK) */
 728 #define HAVE_DLADDR 1
 729 #endif /* OS(DARWIN) || OS(LINUX) */
 730 
 731 
 732 /* ENABLE macro defaults */
 733 
 734 /* FIXME: move out all ENABLE() defines from here to FeatureDefines.h */
 735 
 736 /* Include feature macros */
 737 #include <wtf/FeatureDefines.h>
 738 
 739 #if OS(WINDOWS)
 740 #define USE_SYSTEM_MALLOC 1
 741 #endif
 742 
 743 #if !defined(USE_JSVALUE64) && !defined(USE_JSVALUE32_64)
 744 #if (CPU(X86_64) && !defined(__ILP32__) && (OS(UNIX) || OS(WINDOWS))) \
 745     || (CPU(IA64) && !CPU(IA64_32)) \
 746     || CPU(ALPHA) \
 747     || CPU(ARM64) \
 748     || CPU(S390X) \
 749     || CPU(MIPS64) \
 750     || CPU(PPC64) \
 751     || CPU(PPC64LE)
 752 #define USE_JSVALUE64 1
 753 #else
 754 #define USE_JSVALUE32_64 1
 755 #endif
 756 #endif /* !defined(USE_JSVALUE64) && !defined(USE_JSVALUE32_64) */
 757 
 758 /* The JIT is enabled by default on all x86, x86-64, ARM & MIPS platforms except ARMv7k. */
 759 #if !defined(ENABLE_JIT) \
 760     && (CPU(X86) || CPU(X86_64) || CPU(ARM) || CPU(ARM64) || CPU(MIPS)) \
 761     && !CPU(APPLE_ARMV7K) \
 762     && !CPU(ARM64E)
 763 #define ENABLE_JIT 1
 764 #endif
 765 
 766 /* The FTL *does not* work on 32-bit platforms. Disable it even if someone asked us to enable it. */
 767 #if USE(JSVALUE32_64)
 768 #undef ENABLE_FTL_JIT
 769 #define ENABLE_FTL_JIT 0
 770 #endif
 771 
 772 /* The FTL is disabled on the iOS simulator, mostly for simplicity. */
 773 #if PLATFORM(IOS_SIMULATOR)
 774 #undef ENABLE_FTL_JIT
 775 #define ENABLE_FTL_JIT 0
 776 #endif
 777 
 778 /* If possible, try to enable a disassembler. This is optional. We proceed in two
 779    steps: first we try to find some disassembler that we can use, and then we
 780    decide if the high-level disassembler API can be enabled. */
 781 // FIXME-java: Should we enable UDIS86 on linux?
 782 #if !defined(USE_UDIS86) && !PLATFORM(JAVA) && ENABLE(JIT) && ((OS(DARWIN) && !PLATFORM(GTK)) || (OS(LINUX) && PLATFORM(GTK))) \
 783     && (CPU(X86) || CPU(X86_64))
 784 #define USE_UDIS86 1
 785 #endif
 786 
 787 #if !defined(ENABLE_DISASSEMBLER) && USE(UDIS86)
 788 #define ENABLE_DISASSEMBLER 1
 789 #endif
 790 
 791 #if !defined(USE_ARM64_DISASSEMBLER) && ENABLE(JIT) && CPU(ARM64)
 792 #define USE_ARM64_DISASSEMBLER 1
 793 #endif
 794 
 795 #if !defined(USE_ARMV7_DISASSEMBLER) && ENABLE(JIT) && CPU(ARM_THUMB2)
 796 #define USE_ARMV7_DISASSEMBLER 1
 797 #endif
 798 
 799 #if !defined(USE_ARM_LLVM_DISASSEMBLER) && ENABLE(JIT) && CPU(ARM_TRADITIONAL) && HAVE(LLVM)
 800 #define USE_ARM_LLVM_DISASSEMBLER 1
 801 #endif
 802 
 803 #if !defined(ENABLE_DISASSEMBLER) && (USE(UDIS86) || USE(ARMV7_DISASSEMBLER) || USE(ARM64_DISASSEMBLER) || USE(ARM_LLVM_DISASSEMBLER))
 804 #define ENABLE_DISASSEMBLER 1
 805 #endif
 806 
 807 #if !defined(ENABLE_DFG_JIT) && ENABLE(JIT)
 808 /* Enable the DFG JIT on X86 and X86_64. */
 809 #if (CPU(X86) || CPU(X86_64)) && (OS(DARWIN) || OS(LINUX) || OS(FREEBSD) || OS(WINDOWS) || OS(HURD))
 810 #define ENABLE_DFG_JIT 1
 811 #endif
 812 /* Enable the DFG JIT on ARMv7.  Only tested on iOS and Qt/GTK+ Linux. */
 813 #if (CPU(ARM_THUMB2) || CPU(ARM64)) && (PLATFORM(IOS) || PLATFORM(GTK) || PLATFORM(WPE))
 814 #define ENABLE_DFG_JIT 1
 815 #endif
 816 /* Enable the DFG JIT on ARM and MIPS. */
 817 #if CPU(ARM_TRADITIONAL) || CPU(MIPS)
 818 #define ENABLE_DFG_JIT 1
 819 #endif
 820 #endif
 821 
 822 /* Concurrent JS only works on 64-bit platforms because it requires that
 823    values get stored to atomically. This is trivially true on 64-bit platforms,
 824    but not true at all on 32-bit platforms where values are composed of two
 825    separate sub-values. */
 826 #if ENABLE(DFG_JIT) && USE(JSVALUE64)
 827 #define ENABLE_CONCURRENT_JS 1
 828 #endif
 829 
 830 #if __has_include(<System/pthread_machdep.h>)
 831 #define HAVE_FAST_TLS 1
 832 #endif
 833 
 834 #if (CPU(X86_64) || CPU(ARM64)) && HAVE(FAST_TLS)
 835 #define ENABLE_FAST_TLS_JIT 1
 836 #endif
 837 
 838 /* This controls whether B3 is built. B3 is needed for FTL JIT and WebAssembly */
 839 #if ENABLE(FTL_JIT) || ENABLE(WEBASSEMBLY)
 840 #define ENABLE_B3_JIT 1
 841 #endif
 842 
 843 /* If the baseline jit is not available, then disable upper tiers as well: */
 844 #if !ENABLE(JIT)
 845 #undef ENABLE_DFG_JIT
 846 #undef ENABLE_FTL_JIT
 847 #undef ENABLE_B3_JIT
 848 #define ENABLE_DFG_JIT 0
 849 #define ENABLE_FTL_JIT 0
 850 #define ENABLE_B3_JIT 0
 851 #endif
 852 
 853 /* The SamplingProfiler is the probabilistic and low-overhead profiler used by
 854  * JSC to measure where time is spent inside a JavaScript program.
 855  * In configurations other than Windows and Darwin, because layout of mcontext_t depends on standard libraries (like glibc),
 856  * sampling profiler is enabled if WebKit uses pthreads and glibc. */
 857 #if !defined(ENABLE_SAMPLING_PROFILER)
 858 #if ENABLE(JIT) && (OS(WINDOWS) || HAVE(MACHINE_CONTEXT))
 859 #define ENABLE_SAMPLING_PROFILER 1
 860 #else
 861 #define ENABLE_SAMPLING_PROFILER 0
 862 #endif
 863 #endif
 864 
 865 #if ENABLE(WEBASSEMBLY) && HAVE(MACHINE_CONTEXT)
 866 #define ENABLE_WEBASSEMBLY_FAST_MEMORY 1
 867 #endif
 868 
 869 /* Counts uses of write barriers using sampling counters. Be sure to also
 870    set ENABLE_SAMPLING_COUNTERS to 1. */
 871 #if !defined(ENABLE_WRITE_BARRIER_PROFILING)
 872 #define ENABLE_WRITE_BARRIER_PROFILING 0
 873 #endif
 874 
 875 /* Logs all allocation-related activity that goes through fastMalloc or the
 876    JSC GC (both cells and butterflies). Also logs marking. Note that this
 877    isn't a completely accurate view of the heap since it doesn't include all
 878    butterfly resize operations, doesn't tell you what is going on with weak
 879    references (other than to tell you when they're marked), and doesn't
 880    track direct mmap() allocations or things like JIT allocation. */
 881 #if !defined(ENABLE_ALLOCATION_LOGGING)
 882 #define ENABLE_ALLOCATION_LOGGING 0
 883 #endif
 884 
 885 /* Enable verification that that register allocations are not made within generated control flow.
 886    Turned on for debug builds. */
 887 #if !defined(ENABLE_DFG_REGISTER_ALLOCATION_VALIDATION) && ENABLE(DFG_JIT)
 888 #if !defined(NDEBUG)
 889 #define ENABLE_DFG_REGISTER_ALLOCATION_VALIDATION 1
 890 #else
 891 #define ENABLE_DFG_REGISTER_ALLOCATION_VALIDATION 0
 892 #endif
 893 #endif
 894 
 895 /* Configure the JIT */
 896 #if CPU(X86) && COMPILER(MSVC)
 897 #define JSC_HOST_CALL __fastcall
 898 #elif CPU(X86) && COMPILER(GCC_OR_CLANG)
 899 #define JSC_HOST_CALL __attribute__ ((fastcall))
 900 #else
 901 #define JSC_HOST_CALL
 902 #endif
 903 
 904 #if CPU(X86) && OS(WINDOWS)
 905 #define CALLING_CONVENTION_IS_STDCALL 1
 906 #ifndef CDECL
 907 #if COMPILER(MSVC)
 908 #define CDECL __cdecl
 909 #else
 910 #define CDECL __attribute__ ((__cdecl))
 911 #endif
 912 #endif
 913 #else
 914 #define CALLING_CONVENTION_IS_STDCALL 0
 915 #endif
 916 
 917 #if CPU(X86)
 918 #define WTF_COMPILER_SUPPORTS_FASTCALL_CALLING_CONVENTION 1
 919 #ifndef FASTCALL
 920 #if COMPILER(MSVC)
 921 #define FASTCALL __fastcall
 922 #else
 923 #define FASTCALL  __attribute__ ((fastcall))
 924 #endif
 925 #endif
 926 #else
 927 #define WTF_COMPILER_SUPPORTS_FASTCALL_CALLING_CONVENTION 0
 928 #endif
 929 
 930 #if ENABLE(JIT) && CALLING_CONVENTION_IS_STDCALL
 931 #define JIT_OPERATION CDECL
 932 #else
 933 #define JIT_OPERATION
 934 #endif
 935 
 936 /* Configure the interpreter */
 937 #if COMPILER(GCC_OR_CLANG)
 938 #define HAVE_COMPUTED_GOTO 1
 939 #endif
 940 
 941 /* Determine if we need to enable Computed Goto Opcodes or not: */
 942 #if HAVE(COMPUTED_GOTO) || ENABLE(JIT)
 943 #define ENABLE_COMPUTED_GOTO_OPCODES 1
 944 #endif
 945 
 946 #if ENABLE(JIT) && !COMPILER(MSVC) && \
 947     (CPU(X86) || CPU(X86_64) || CPU(ARM64) || (CPU(ARM_THUMB2) && OS(DARWIN)))
 948 /* This feature works by embedding the OpcodeID in the 32 bit just before the generated LLint code
 949    that executes each opcode. It cannot be supported by the CLoop since there's no way to embed the
 950    OpcodeID word in the CLoop's switch statement cases. It is also currently not implemented for MSVC.
 951 */
 952 #define USE_LLINT_EMBEDDED_OPCODE_ID 1
 953 #endif
 954 
 955 /* Regular Expression Tracing - Set to 1 to trace RegExp's in jsc.  Results dumped at exit */
 956 #define ENABLE_REGEXP_TRACING 0
 957 
 958 /* Yet Another Regex Runtime - turned on by default for JIT enabled ports. */
 959 #if !defined(ENABLE_YARR_JIT) && ENABLE(JIT)
 960 #define ENABLE_YARR_JIT 1
 961 
 962 /* Setting this flag compares JIT results with interpreter results. */
 963 #define ENABLE_YARR_JIT_DEBUG 0
 964 #endif
 965 
 966 /* If either the JIT or the RegExp JIT is enabled, then the Assembler must be
 967    enabled as well: */
 968 #if ENABLE(JIT) || ENABLE(YARR_JIT)
 969 #if defined(ENABLE_ASSEMBLER) && !ENABLE_ASSEMBLER
 970 #error "Cannot enable the JIT or RegExp JIT without enabling the Assembler"
 971 #else
 972 #undef ENABLE_ASSEMBLER
 973 #define ENABLE_ASSEMBLER 1
 974 #endif
 975 #endif
 976 
 977 /* If the Disassembler is enabled, then the Assembler must be enabled as well: */
 978 #if ENABLE(DISASSEMBLER)
 979 #if defined(ENABLE_ASSEMBLER) && !ENABLE_ASSEMBLER
 980 #error "Cannot enable the Disassembler without enabling the Assembler"
 981 #else
 982 #undef ENABLE_ASSEMBLER
 983 #define ENABLE_ASSEMBLER 1
 984 #endif
 985 #endif
 986 
 987 /* Enable the following if you want to use the MacroAssembler::probe() facility
 988    to do JIT debugging. */
 989 #if (CPU(X86) || CPU(X86_64) || CPU(ARM64) || (CPU(ARM_THUMB2) && PLATFORM(IOS))) && ENABLE(JIT) && OS(DARWIN)
 990 #define ENABLE_MASM_PROBE 1
 991 #else
 992 #define ENABLE_MASM_PROBE 0
 993 #endif
 994 
 995 #ifndef ENABLE_EXCEPTION_SCOPE_VERIFICATION
 996 #ifdef NDEBUG
 997 #define ENABLE_EXCEPTION_SCOPE_VERIFICATION 0
 998 #else
 999 #define ENABLE_EXCEPTION_SCOPE_VERIFICATION 1
1000 #endif
1001 #endif
1002 
1003 #if ENABLE(JIT) && HAVE(MACHINE_CONTEXT) && (CPU(X86) || CPU(X86_64) || CPU(ARM64))
1004 #define ENABLE_SIGNAL_BASED_VM_TRAPS 1
1005 #endif
1006 
1007 /* CSS Selector JIT Compiler */
1008 #if !defined(ENABLE_CSS_SELECTOR_JIT)
1009 #if (CPU(X86_64) || CPU(ARM64) || (CPU(ARM_THUMB2) && PLATFORM(IOS))) && ENABLE(JIT) && (OS(DARWIN) || PLATFORM(GTK) || PLATFORM(WPE))
1010 #define ENABLE_CSS_SELECTOR_JIT 1
1011 #else
1012 #define ENABLE_CSS_SELECTOR_JIT 0
1013 #endif
1014 #endif
1015 
1016 #if ENABLE(WEBGL) && PLATFORM(WIN)
1017 #define USE_OPENGL 1
1018 #define USE_OPENGL_ES_2 1
1019 #define USE_EGL 1
1020 #endif
1021 
1022 #if ENABLE(VIDEO) && PLATFORM(WIN_CAIRO)
1023 #if ENABLE(GSTREAMER_WINCAIRO)
1024 #define USE_MEDIA_FOUNDATION 0
1025 #define USE_GLIB 1
1026 #define USE_GSTREAMER 1
1027 #else
1028 #define USE_MEDIA_FOUNDATION 1
1029 #endif
1030 #endif
1031 
1032 #if PLATFORM(WIN_CAIRO)
1033 #define USE_TEXTURE_MAPPER 1
1034 #elif PLATFORM(JAVA)
1035 #define USE_TEXTURE_MAPPER 1
1036 #endif
1037 
1038 #if USE(TEXTURE_MAPPER) && ENABLE(GRAPHICS_CONTEXT_3D) && !defined(USE_TEXTURE_MAPPER_GL)
1039 #define USE_TEXTURE_MAPPER_GL 1
1040 #endif
1041 
1042 #if PLATFORM(COCOA)
1043 #define USE_PROTECTION_SPACE_AUTH_CALLBACK 1
1044 #endif
1045 
1046 #if PLATFORM(COCOA) && HAVE(ACCESSIBILITY)
1047 #define USE_ACCESSIBILITY_CONTEXT_MENUS 1
1048 #endif
1049 
1050 #if CPU(ARM_THUMB2) || CPU(ARM64)
1051 #define ENABLE_BRANCH_COMPACTION 1
1052 #endif
1053 
1054 #if !defined(ENABLE_THREADING_LIBDISPATCH) && HAVE(DISPATCH_H)
1055 #define ENABLE_THREADING_LIBDISPATCH 1
1056 #elif !defined(ENABLE_THREADING_OPENMP) && defined(_OPENMP)
1057 #define ENABLE_THREADING_OPENMP 1
1058 #elif !defined(THREADING_GENERIC)
1059 #define ENABLE_THREADING_GENERIC 1
1060 #endif
1061 
1062 #if USE(GLIB)
1063 #include <wtf/glib/GTypedefs.h>
1064 #endif
1065 
1066 /* FIXME: This define won't be needed once #27551 is fully landed. However,
1067    since most ports try to support sub-project independence, adding new headers
1068    to WTF causes many ports to break, and so this way we can address the build
1069    breakages one port at a time. */
1070 #if !defined(USE_EXPORT_MACROS) && (PLATFORM(COCOA) || OS(WINDOWS))
1071 #define USE_EXPORT_MACROS 1
1072 #endif
1073 
1074 #if !defined(USE_EXPORT_MACROS_FOR_TESTING) && (PLATFORM(GTK) || OS(WINDOWS))
1075 #define USE_EXPORT_MACROS_FOR_TESTING 1
1076 #endif
1077 
1078 #if PLATFORM(GTK) || PLATFORM(WPE)
1079 #define USE_UNIX_DOMAIN_SOCKETS 1
1080 #endif
1081 
1082 #if !defined(USE_IMLANG_FONT_LINK2)
1083 #define USE_IMLANG_FONT_LINK2 1
1084 #endif
1085 
1086 #if !defined(ENABLE_GC_VALIDATION) && !defined(NDEBUG)
1087 #define ENABLE_GC_VALIDATION 1
1088 #endif
1089 
1090 #if !defined(ENABLE_BINDING_INTEGRITY) && !OS(WINDOWS)
1091 #define ENABLE_BINDING_INTEGRITY 1
1092 #endif
1093 
1094 #if PLATFORM(COCOA)
1095 #define USE_AVFOUNDATION 1
1096 #endif
1097 
1098 #if PLATFORM(WIN) && !USE(WINGDI)
1099 #include <wtf/AVFoundationHeaderDetection.h>
1100 #endif
1101 
1102 #if PLATFORM(WIN) && USE(CG) && HAVE(AVCF)
1103 #define USE_AVFOUNDATION 1
1104 
1105 #if HAVE(AVCF_LEGIBLE_OUTPUT)
1106 #define HAVE_AVFOUNDATION_MEDIA_SELECTION_GROUP 1
1107 #define HAVE_AVFOUNDATION_LEGIBLE_OUTPUT_SUPPORT 1
1108 #define HAVE_MEDIA_ACCESSIBILITY_FRAMEWORK 1
1109 #endif
1110 
1111 #endif
1112 
1113 #if !defined(ENABLE_TREE_DEBUGGING)
1114 #if !defined(NDEBUG)
1115 #define ENABLE_TREE_DEBUGGING 1
1116 #else
1117 #define ENABLE_TREE_DEBUGGING 0
1118 #endif
1119 #endif
1120 
1121 #if PLATFORM(IOS) || PLATFORM(MAC)
1122 #define USE_COREMEDIA 1
1123 #define HAVE_AVFOUNDATION_VIDEO_OUTPUT 1
1124 #endif
1125 
1126 #if PLATFORM(IOS) || PLATFORM(MAC) || (OS(WINDOWS) && USE(CG))
1127 #define HAVE_AVFOUNDATION_MEDIA_SELECTION_GROUP 1
1128 #endif
1129 
1130 #if PLATFORM(IOS) || PLATFORM(MAC) || (OS(WINDOWS) && USE(CG))
1131 #define HAVE_AVFOUNDATION_LEGIBLE_OUTPUT_SUPPORT 1
1132 #define HAVE_MEDIA_ACCESSIBILITY_FRAMEWORK 1
1133 #endif
1134 
1135 #if PLATFORM(IOS) || PLATFORM(MAC)
1136 #define HAVE_AVFOUNDATION_LOADER_DELEGATE 1
1137 #endif
1138 
1139 #if PLATFORM(MAC) || (PLATFORM(IOS) && ENABLE(WEB_RTC))
1140 #define USE_VIDEOTOOLBOX 1
1141 #endif
1142 
1143 #if PLATFORM(COCOA) || PLATFORM(GTK) || PLATFORM(WPE)
1144 #define USE_REQUEST_ANIMATION_FRAME_DISPLAY_MONITOR 1
1145 #endif
1146 
1147 #if PLATFORM(MAC)
1148 #define USE_COREAUDIO 1
1149 #endif
1150 
1151 #if !defined(USE_ZLIB) && !PLATFORM(JAVA)
1152 #define USE_ZLIB 1
1153 #endif
1154 
1155 #ifndef HAVE_QOS_CLASSES
1156 #if PLATFORM(COCOA)
1157 #define HAVE_QOS_CLASSES 1
1158 #endif
1159 #endif
1160 
1161 #ifndef HAVE_VOUCHERS
1162 #if PLATFORM(COCOA)
1163 #define HAVE_VOUCHERS 1
1164 #endif
1165 #endif
1166 
1167 #define USE_GRAMMAR_CHECKING 1
1168 
1169 #if PLATFORM(COCOA) || PLATFORM(GTK)
1170 #define USE_UNIFIED_TEXT_CHECKING 1
1171 #endif
1172 #if PLATFORM(MAC)
1173 #define USE_AUTOMATIC_TEXT_REPLACEMENT 1
1174 #endif
1175 
1176 #if PLATFORM(MAC)
1177 /* Some platforms provide UI for suggesting autocorrection. */
1178 #define USE_AUTOCORRECTION_PANEL 1
1179 #endif
1180 
1181 #if PLATFORM(COCOA)
1182 /* Some platforms use spelling and autocorrection markers to provide visual cue. On such platform, if word with marker is edited, we need to remove the marker. */
1183 #define USE_MARKER_REMOVAL_UPON_EDITING 1
1184 #endif
1185 
1186 #if PLATFORM(MAC)
1187 #define USE_INSERTION_UNDO_GROUPING 1
1188 #endif
1189 
1190 #if PLATFORM(COCOA)
1191 #define HAVE_TIMINGDATAOPTIONS 1
1192 #endif
1193 
1194 #if PLATFORM(COCOA)
1195 #define USE_AUDIO_SESSION 1
1196 #endif
1197 
1198 #if PLATFORM(COCOA) && !PLATFORM(IOS_SIMULATOR)
1199 #define USE_IOSURFACE 1
1200 #endif
1201 
1202 #if PLATFORM(COCOA)
1203 #define ENABLE_RESOURCE_USAGE 1
1204 #endif
1205 
1206 #if PLATFORM(GTK) || PLATFORM(WPE)
1207 #undef ENABLE_OPENTYPE_VERTICAL
1208 #define ENABLE_OPENTYPE_VERTICAL 1
1209 #define ENABLE_CSS3_TEXT_DECORATION_SKIP_INK 1
1210 #endif
1211 
1212 #if PLATFORM(GTK)
1213 #define USE_WOFF2 1
1214 #endif
1215 
1216 #if PLATFORM(COCOA)
1217 #define ENABLE_CSS3_TEXT_DECORATION_SKIP_INK 1
1218 #endif
1219 
1220 #if COMPILER(MSVC)
1221 #undef __STDC_FORMAT_MACROS
1222 #define __STDC_FORMAT_MACROS
1223 #undef __STDC_LIMIT_MACROS
1224 #define __STDC_LIMIT_MACROS
1225 #endif
1226 
1227 #if PLATFORM(MAC)
1228 #define HAVE_NS_ACTIVITY 1
1229 #endif
1230 
1231 #if (OS(DARWIN) && USE(CG)) || (USE(FREETYPE) && !PLATFORM(GTK)) || (PLATFORM(WIN) && (USE(CG) || USE(CAIRO)))
1232 #undef ENABLE_OPENTYPE_MATH
1233 #define ENABLE_OPENTYPE_MATH 1
1234 #endif
1235 
1236 /* Set TARGET_OS_IPHONE to 0 by default to allow using it as a guard
1237  * in cross-platform the same way as it is used in OS(DARWIN) code. */
1238 #if !defined(TARGET_OS_IPHONE) && !OS(DARWIN)
1239 #define TARGET_OS_IPHONE 0
1240 #endif
1241 
1242 #if PLATFORM(COCOA)
1243 #define USE_MEDIATOOLBOX 1
1244 #endif
1245 
1246 /* FIXME: Enable USE_OS_LOG when building with the public iOS 10 SDK once we fix <rdar://problem/27758343>. */
1247 #if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200) || (PLATFORM(IOS) && USE(APPLE_INTERNAL_SDK))
1248 #define USE_OS_LOG 1
1249 #if USE(APPLE_INTERNAL_SDK)
1250 #define USE_OS_STATE 1
1251 #endif
1252 #endif
1253 
1254 #if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200) || PLATFORM(IOS)
1255 #define HAVE_SEC_TRUST_SERIALIZATION 1
1256 #endif
1257 
1258 #if !defined(WTF_DEFAULT_EVENT_LOOP)
1259 #define WTF_DEFAULT_EVENT_LOOP 1
1260 #endif
1261 
1262 #if WTF_DEFAULT_EVENT_LOOP
1263 #if USE(GLIB)
1264 /* Use GLib's event loop abstraction. Primarily GTK port uses it. */
1265 #define USE_GLIB_EVENT_LOOP 1
1266 #elif OS(WINDOWS)
1267 /* Use Windows message pump abstraction.
1268  * Even if the port is AppleWin, we use the Windows message pump system for the event loop,
1269  * so that USE(WINDOWS_EVENT_LOOP) && USE(CF) can be true.
1270  * And PLATFORM(WIN) and PLATFORM(GTK) are exclusive. If the port is GTK,
1271  * PLATFORM(WIN) should be false. And in that case, GLib's event loop is used.
1272  */
1273 #define USE_WINDOWS_EVENT_LOOP 1
1274 #elif PLATFORM(COCOA)
1275 /* OS X and IOS. Use CoreFoundation & GCD abstraction. */
1276 #define USE_COCOA_EVENT_LOOP 1
1277 #else
1278 #define USE_GENERIC_EVENT_LOOP 1
1279 #endif
1280 #endif
1281 
1282 #if PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200
1283 #define USE_MEDIAREMOTE 1
1284 #endif
1285 
1286 #if COMPILER(MSVC)
1287 /* Enable strict runtime stack buffer checks. */
1288 #pragma strict_gs_check(on)
1289 #endif
1290 
1291 #if PLATFORM(MAC) && __MAC_OS_X_VERSION_MAX_ALLOWED >= 101201 && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200
1292 #define HAVE_TOUCH_BAR 1
1293 #define HAVE_ADVANCED_SPELL_CHECKING 1
1294 
1295 #if defined(__LP64__)
1296 #define ENABLE_WEB_PLAYBACK_CONTROLS_MANAGER 1
1297 #endif
1298 #endif /* PLATFORM(MAC) && __MAC_OS_X_VERSION_MAX_ALLOWED >= 101201 && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101200 */
1299 
1300 #if PLATFORM(COCOA) && ENABLE(WEB_RTC)
1301 #define USE_LIBWEBRTC 1
1302 #endif
1303 
1304 #if (PLATFORM(MAC) && __MAC_OS_X_VERSION_MIN_REQUIRED >= 101300) || (PLATFORM(IOS) && __IPHONE_OS_VERSION_MIN_REQUIRED >= 110000) || USE(GCRYPT)
1305 #define HAVE_RSA_PSS 1
1306 #endif
1307 
1308 #if !OS(WINDOWS) && !OS(SOLARIS)
1309 #define HAVE_STACK_BOUNDS_FOR_NEW_THREAD 1
1310 #endif
1311 
1312 #endif /* WTF_Platform_h */