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1 /*
2  * Copyright (C) 2006, 2007, 2008, 2009 Apple Inc.  All rights reserved.
3  * Copyright (C) 2007-2009 Torch Mobile, Inc.
4  * Copyright (C) Research In Motion Limited 2010. 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 COMPUTER, 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 COMPUTER, 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 /* ==== PLATFORM handles OS, operating environment, graphics API, and
32    CPU. This macro will be phased out in favor of platform adaptation
33    macros, policy decision macros, and top-level port definitions. ==== */
34 #define PLATFORM(WTF_FEATURE) (defined WTF_PLATFORM_##WTF_FEATURE  && WTF_PLATFORM_##WTF_FEATURE)
35 
36 
37 /* ==== Platform adaptation macros: these describe properties of the target environment. ==== */
38 
39 /* COMPILER() - the compiler being used to build the project */
40 #define COMPILER(WTF_FEATURE) (defined WTF_COMPILER_##WTF_FEATURE  && WTF_COMPILER_##WTF_FEATURE)
41 /* CPU() - the target CPU architecture */
42 #define CPU(WTF_FEATURE) (defined WTF_CPU_##WTF_FEATURE  && WTF_CPU_##WTF_FEATURE)
43 /* HAVE() - specific system features (headers, functions or similar) that are present or not */
44 #define HAVE(WTF_FEATURE) (defined HAVE_##WTF_FEATURE  && HAVE_##WTF_FEATURE)
45 /* OS() - underlying operating system; only to be used for mandated low-level services like
46    virtual memory, not to choose a GUI toolkit */
47 #define OS(WTF_FEATURE) (defined WTF_OS_##WTF_FEATURE  && WTF_OS_##WTF_FEATURE)
48 
49 
50 /* ==== Policy decision macros: these define policy choices for a particular port. ==== */
51 
52 /* USE() - use a particular third-party library or optional OS service */
53 #define USE(WTF_FEATURE) (defined WTF_USE_##WTF_FEATURE  && WTF_USE_##WTF_FEATURE)
54 /* ENABLE() - turn on a specific feature of WebKit */
55 #define ENABLE(WTF_FEATURE) (defined ENABLE_##WTF_FEATURE  && ENABLE_##WTF_FEATURE)
56 
57 
58 
59 /* ==== COMPILER() - the compiler being used to build the project ==== */
60 
61 /* COMPILER(MSVC) Microsoft Visual C++ */
62 /* COMPILER(MSVC7_OR_LOWER) Microsoft Visual C++ 2003 or lower*/
63 /* COMPILER(MSVC9_OR_LOWER) Microsoft Visual C++ 2008 or lower*/
64 #if defined(_MSC_VER)
65 #define WTF_COMPILER_MSVC 1
66 #if _MSC_VER < 1400
67 #define WTF_COMPILER_MSVC7_OR_LOWER 1
68 #elif _MSC_VER < 1600
69 #define WTF_COMPILER_MSVC9_OR_LOWER 1
70 #endif
71 #endif
72 
73 /* COMPILER(RVCT)  - ARM RealView Compilation Tools */
74 /* COMPILER(RVCT4_OR_GREATER) - ARM RealView Compilation Tools 4.0 or greater */
75 #if defined(__CC_ARM) || defined(__ARMCC__)
76 #define WTF_COMPILER_RVCT 1
77 #define RVCT_VERSION_AT_LEAST(major, minor, patch, build) (__ARMCC_VERSION >= (major * 100000 + minor * 10000 + patch * 1000 + build))
78 #else
79 /* Define this for !RVCT compilers, just so we can write things like RVCT_VERSION_AT_LEAST(3, 0, 0, 0). */
80 #define RVCT_VERSION_AT_LEAST(major, minor, patch, build) 0
81 #endif
82 
83 /* COMPILER(GCC) - GNU Compiler Collection */
84 /* --gnu option of the RVCT compiler also defines __GNUC__ */
85 #if defined(__GNUC__) && !COMPILER(RVCT)
86 #define WTF_COMPILER_GCC 1
87 #define GCC_VERSION (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
88 #define GCC_VERSION_AT_LEAST(major, minor, patch) (GCC_VERSION >= (major * 10000 + minor * 100 + patch))
89 #else
90 /* Define this for !GCC compilers, just so we can write things like GCC_VERSION_AT_LEAST(4, 1, 0). */
91 #define GCC_VERSION_AT_LEAST(major, minor, patch) 0
92 #endif
93 
94 /* COMPILER(MINGW) - MinGW GCC */
95 /* COMPILER(MINGW64) - mingw-w64 GCC - only used as additional check to exclude mingw.org specific functions */
96 #if defined(__MINGW32__)
97 #define WTF_COMPILER_MINGW 1
98 #include <_mingw.h> /* private MinGW header */
99     #if defined(__MINGW64_VERSION_MAJOR) /* best way to check for mingw-w64 vs mingw.org */
100         #define WTF_COMPILER_MINGW64 1
101     #endif /* __MINGW64_VERSION_MAJOR */
102 #endif /* __MINGW32__ */
103 
104 /* COMPILER(WINSCW) - CodeWarrior for Symbian emulator */
105 #if defined(__WINSCW__)
106 #define WTF_COMPILER_WINSCW 1
107 /* cross-compiling, it is not really windows */
108 #undef WIN32
109 #undef _WIN32
110 #endif
111 
112 /* COMPILER(INTEL) - Intel C++ Compiler */
113 #if defined(__INTEL_COMPILER)
114 #define WTF_COMPILER_INTEL 1
115 #endif
116 
117 /* COMPILER(SUNCC) */
118 #if defined(__SUNPRO_CC) || defined(__SUNPRO_C)
119 #define WTF_COMPILER_SUNCC 1
120 #endif
121 
122 /* ==== CPU() - the target CPU architecture ==== */
123 
124 /* This also defines CPU(BIG_ENDIAN) or CPU(MIDDLE_ENDIAN) or neither, as appropriate. */
125 
126 /* CPU(ALPHA) - DEC Alpha */
127 #if defined(__alpha__)
128 #define WTF_CPU_ALPHA 1
129 #endif
130 
131 /* CPU(IA64) - Itanium / IA-64 */
132 #if defined(__ia64__)
133 #define WTF_CPU_IA64 1
134 /* 32-bit mode on Itanium */
135 #if !defined(__LP64__)
136 #define WTF_CPU_IA64_32 1
137 #endif
138 #endif
139 
140 /* CPU(MIPS) - MIPS 32-bit */
141 /* Note: Only O32 ABI is tested, so we enable it for O32 ABI for now.  */
142 #if (defined(mips) || defined(__mips__) || defined(MIPS) || defined(_MIPS_)) \
143     && defined(_ABIO32)
144 #define WTF_CPU_MIPS 1
145 #if defined(__MIPSEB__)
146 #define WTF_CPU_BIG_ENDIAN 1
147 #endif
148 #define WTF_MIPS_PIC (defined __PIC__)
149 #define WTF_MIPS_ARCH __mips
150 #define WTF_MIPS_ISA(v) (defined WTF_MIPS_ARCH && WTF_MIPS_ARCH == v)
151 #define WTF_MIPS_ISA_AT_LEAST(v) (defined WTF_MIPS_ARCH && WTF_MIPS_ARCH >= v)
152 #define WTF_MIPS_ARCH_REV __mips_isa_rev
153 #define WTF_MIPS_ISA_REV(v) (defined WTF_MIPS_ARCH_REV && WTF_MIPS_ARCH_REV == v)
154 #define WTF_MIPS_DOUBLE_FLOAT (defined __mips_hard_float && !defined __mips_single_float)
155 #define WTF_MIPS_FP64 (defined __mips_fpr && __mips_fpr == 64)
156 /* MIPS requires allocators to use aligned memory */
157 #define WTF_USE_ARENA_ALLOC_ALIGNMENT_INTEGER 1
158 #endif /* MIPS */
159 
160 /* CPU(PPC) - PowerPC 32-bit */
161 #if   defined(__ppc__)     \
162     || defined(__PPC__)     \
163     || defined(__powerpc__) \
164     || defined(__powerpc)   \
165     || defined(__POWERPC__) \
166     || defined(_M_PPC)      \
167     || defined(__PPC)
168 #define WTF_CPU_PPC 1
169 #define WTF_CPU_BIG_ENDIAN 1
170 #endif
171 
172 /* CPU(PPC64) - PowerPC 64-bit */
173 #if   defined(__ppc64__) \
174     || defined(__PPC64__)
175 #define WTF_CPU_PPC64 1
176 #define WTF_CPU_BIG_ENDIAN 1
177 #endif
178 
179 /* CPU(SH4) - SuperH SH-4 */
180 #if defined(__SH4__)
181 #define WTF_CPU_SH4 1
182 #endif
183 
184 /* CPU(SPARC32) - SPARC 32-bit */
185 #if defined(__sparc) && !defined(__arch64__) || defined(__sparcv8)
186 #define WTF_CPU_SPARC32 1
187 #define WTF_CPU_BIG_ENDIAN 1
188 #endif
189 
190 /* CPU(SPARC64) - SPARC 64-bit */
191 #if defined(__sparc__) && defined(__arch64__) || defined (__sparcv9)
192 #define WTF_CPU_SPARC64 1
193 #define WTF_CPU_BIG_ENDIAN 1
194 #endif
195 
196 /* CPU(SPARC) - any SPARC, true for CPU(SPARC32) and CPU(SPARC64) */
197 #if CPU(SPARC32) || CPU(SPARC64)
198 #define WTF_CPU_SPARC 1
199 #endif
200 
201 /* CPU(S390X) - S390 64-bit */
202 #if defined(__s390x__)
203 #define WTF_CPU_S390X 1
204 #define WTF_CPU_BIG_ENDIAN 1
205 #endif
206 
207 /* CPU(S390) - S390 32-bit */
208 #if defined(__s390__)
209 #define WTF_CPU_S390 1
210 #define WTF_CPU_BIG_ENDIAN 1
211 #endif
212 
213 /* CPU(X86) - i386 / x86 32-bit */
214 #if   defined(__i386__) \
215     || defined(i386)     \
216     || defined(_M_IX86)  \
217     || defined(_X86_)    \
218     || defined(__THW_INTEL)
219 #define WTF_CPU_X86 1
220 #endif
221 
222 /* CPU(X86_64) - AMD64 / Intel64 / x86_64 64-bit */
223 #if   defined(__x86_64__) \
224     || defined(_M_X64)
225 #define WTF_CPU_X86_64 1
226 #endif
227 
228 /* CPU(ARM) - ARM, any version*/
229 #if   defined(arm) \
230     || defined(__arm__) \
231     || defined(ARM) \
232     || defined(_ARM_)
233 #define WTF_CPU_ARM 1
234 
235 #if defined(__ARMEB__) || (COMPILER(RVCT) && defined(__BIG_ENDIAN))
236 #define WTF_CPU_BIG_ENDIAN 1
237 
238 #elif !defined(__ARM_EABI__) \
239     && !defined(__EABI__) \
240     && !defined(__VFP_FP__) \
241     && !defined(_WIN32_WCE) \
242     && !defined(ANDROID)
243 #define WTF_CPU_MIDDLE_ENDIAN 1
244 
245 #endif
246 
247 #define WTF_ARM_ARCH_AT_LEAST(N) (CPU(ARM) && WTF_ARM_ARCH_VERSION >= N)
248 
249 /* Set WTF_ARM_ARCH_VERSION */
250 #if   defined(__ARM_ARCH_4__) \
251     || defined(__ARM_ARCH_4T__) \
252     || defined(__MARM_ARMV4__) \
253     || defined(_ARMV4I_)
254 #define WTF_ARM_ARCH_VERSION 4
255 
256 #elif defined(__ARM_ARCH_5__) \
257     || defined(__ARM_ARCH_5T__) \
258     || defined(__MARM_ARMV5__)
259 #define WTF_ARM_ARCH_VERSION 5
260 
261 #elif defined(__ARM_ARCH_5E__) \
262     || defined(__ARM_ARCH_5TE__) \
263     || defined(__ARM_ARCH_5TEJ__)
264 #define WTF_ARM_ARCH_VERSION 5
265 /*ARMv5TE requires allocators to use aligned memory*/
266 #define WTF_USE_ARENA_ALLOC_ALIGNMENT_INTEGER 1
267 
268 #elif defined(__ARM_ARCH_6__) \
269     || defined(__ARM_ARCH_6J__) \
270     || defined(__ARM_ARCH_6K__) \
271     || defined(__ARM_ARCH_6Z__) \
272     || defined(__ARM_ARCH_6ZK__) \
273     || defined(__ARM_ARCH_6T2__) \
274     || defined(__ARMV6__)
275 #define WTF_ARM_ARCH_VERSION 6
276 
277 #elif defined(__ARM_ARCH_7A__) \
278     || defined(__ARM_ARCH_7R__)
279 #define WTF_ARM_ARCH_VERSION 7
280 
281 /* RVCT sets _TARGET_ARCH_ARM */
282 #elif defined(__TARGET_ARCH_ARM)
283 #define WTF_ARM_ARCH_VERSION __TARGET_ARCH_ARM
284 
285 #if defined(__TARGET_ARCH_5E) \
286     || defined(__TARGET_ARCH_5TE) \
287     || defined(__TARGET_ARCH_5TEJ)
288 /*ARMv5TE requires allocators to use aligned memory*/
289 #define WTF_USE_ARENA_ALLOC_ALIGNMENT_INTEGER 1
290 #endif
291 
292 #else
293 #define WTF_ARM_ARCH_VERSION 0
294 
295 #endif
296 
297 /* Set WTF_THUMB_ARCH_VERSION */
298 #if   defined(__ARM_ARCH_4T__)
299 #define WTF_THUMB_ARCH_VERSION 1
300 
301 #elif defined(__ARM_ARCH_5T__) \
302     || defined(__ARM_ARCH_5TE__) \
303     || defined(__ARM_ARCH_5TEJ__)
304 #define WTF_THUMB_ARCH_VERSION 2
305 
306 #elif defined(__ARM_ARCH_6J__) \
307     || defined(__ARM_ARCH_6K__) \
308     || defined(__ARM_ARCH_6Z__) \
309     || defined(__ARM_ARCH_6ZK__) \
310     || defined(__ARM_ARCH_6M__)
311 #define WTF_THUMB_ARCH_VERSION 3
312 
313 #elif defined(__ARM_ARCH_6T2__) \
314     || defined(__ARM_ARCH_7__) \
315     || defined(__ARM_ARCH_7A__) \
316     || defined(__ARM_ARCH_7R__) \
317     || defined(__ARM_ARCH_7M__)
318 #define WTF_THUMB_ARCH_VERSION 4
319 
320 /* RVCT sets __TARGET_ARCH_THUMB */
321 #elif defined(__TARGET_ARCH_THUMB)
322 #define WTF_THUMB_ARCH_VERSION __TARGET_ARCH_THUMB
323 
324 #else
325 #define WTF_THUMB_ARCH_VERSION 0
326 #endif
327 
328 
329 /* CPU(ARMV5_OR_LOWER) - ARM instruction set v5 or earlier */
330 /* On ARMv5 and below the natural alignment is required.
331    And there are some other differences for v5 or earlier. */
332 #if !defined(ARMV5_OR_LOWER) && !WTF_ARM_ARCH_AT_LEAST(6)
333 #define WTF_CPU_ARMV5_OR_LOWER 1
334 #endif
335 
336 
337 /* CPU(ARM_TRADITIONAL) - Thumb2 is not available, only traditional ARM (v4 or greater) */
338 /* CPU(ARM_THUMB2) - Thumb2 instruction set is available */
339 /* Only one of these will be defined. */
340 #if !defined(WTF_CPU_ARM_TRADITIONAL) && !defined(WTF_CPU_ARM_THUMB2)
341 #  if defined(thumb2) || defined(__thumb2__) \
342     || ((defined(__thumb) || defined(__thumb__)) && WTF_THUMB_ARCH_VERSION == 4)
343 #    define WTF_CPU_ARM_TRADITIONAL 0
344 #    define WTF_CPU_ARM_THUMB2 1
345 #  elif WTF_ARM_ARCH_AT_LEAST(4)
346 #    define WTF_CPU_ARM_TRADITIONAL 1
347 #    define WTF_CPU_ARM_THUMB2 0
348 #  else
349 #    error "Not supported ARM architecture"
350 #  endif
351 #elif CPU(ARM_TRADITIONAL) && CPU(ARM_THUMB2) /* Sanity Check */
352 #  error "Cannot use both of WTF_CPU_ARM_TRADITIONAL and WTF_CPU_ARM_THUMB2 platforms"
353 #endif /* !defined(WTF_CPU_ARM_TRADITIONAL) && !defined(WTF_CPU_ARM_THUMB2) */
354 
355 #if defined(__ARM_NEON__) && !defined(WTF_CPU_ARM_NEON)
356 #define WTF_CPU_ARM_NEON 1
357 #endif
358 
359 #endif /* ARM */
360 
361 #if CPU(ARM) || CPU(MIPS)
362 #define WTF_CPU_NEEDS_ALIGNED_ACCESS 1
363 #endif
364 
365 /* ==== OS() - underlying operating system; only to be used for mandated low-level services like
366    virtual memory, not to choose a GUI toolkit ==== */
367 
368 /* OS(ANDROID) - Android */
369 #ifdef ANDROID
370 #define WTF_OS_ANDROID 1
371 #endif
372 
373 /* OS(AIX) - AIX */
374 #ifdef _AIX
375 #define WTF_OS_AIX 1
376 #endif
377 
378 /* OS(DARWIN) - Any Darwin-based OS, including Mac OS X and iPhone OS */
379 #ifdef __APPLE__
380 #define WTF_OS_DARWIN 1
381 
382 /* FIXME: BUILDING_ON_.., and TARGETING... macros should be folded into the OS() system */
383 #include <AvailabilityMacros.h>
384 #if !defined(MAC_OS_X_VERSION_10_5) || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_5
385 #define BUILDING_ON_TIGER 1
386 #elif !defined(MAC_OS_X_VERSION_10_6) || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_6
387 #define BUILDING_ON_LEOPARD 1
388 #elif !defined(MAC_OS_X_VERSION_10_7) || MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_7
389 #define BUILDING_ON_SNOW_LEOPARD 1
390 #endif
391 #if !defined(MAC_OS_X_VERSION_10_5) || MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
392 #define TARGETING_TIGER 1
393 #elif !defined(MAC_OS_X_VERSION_10_6) || MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_6
394 #define TARGETING_LEOPARD 1
395 #elif !defined(MAC_OS_X_VERSION_10_7) || MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_7
396 #define TARGETING_SNOW_LEOPARD 1
397 #endif
398 #include <TargetConditionals.h>
399 
400 #endif
401 
402 /* OS(IOS) - iOS */
403 /* OS(MAC_OS_X) - Mac OS X (not including iOS) */
404 #if OS(DARWIN) && ((defined(TARGET_OS_EMBEDDED) && TARGET_OS_EMBEDDED)  \
405     || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)                   \
406     || (defined(TARGET_IPHONE_SIMULATOR) && TARGET_IPHONE_SIMULATOR))
407 #define WTF_OS_IOS 1
408 #elif OS(DARWIN) && defined(TARGET_OS_MAC) && TARGET_OS_MAC
409 #define WTF_OS_MAC_OS_X 1
410 #endif
411 
412 /* OS(FREEBSD) - FreeBSD */
413 #if defined(__FreeBSD__) || defined(__DragonFly__)
414 #define WTF_OS_FREEBSD 1
415 #endif
416 
417 /* OS(HAIKU) - Haiku */
418 #ifdef __HAIKU__
419 #define WTF_OS_HAIKU 1
420 #endif
421 
422 /* OS(LINUX) - Linux */
423 #ifdef __linux__
424 #define WTF_OS_LINUX 1
425 #endif
426 
427 /* OS(NETBSD) - NetBSD */
428 #if defined(__NetBSD__)
429 #define WTF_OS_NETBSD 1
430 #endif
431 
432 /* OS(OPENBSD) - OpenBSD */
433 #ifdef __OpenBSD__
434 #define WTF_OS_OPENBSD 1
435 #endif
436 
437 /* OS(QNX) - QNX */
438 #if defined(__QNXNTO__)
439 #define WTF_OS_QNX 1
440 #endif
441 
442 /* OS(SOLARIS) - Solaris */
443 #if defined(sun) || defined(__sun)
444 #define WTF_OS_SOLARIS 1
445 #endif
446 
447 /* OS(WINCE) - Windows CE; note that for this platform OS(WINDOWS) is also defined */
448 #if defined(_WIN32_WCE)
449 #define WTF_OS_WINCE 1
450 #endif
451 
452 /* OS(WINDOWS) - Any version of Windows */
453 #if defined(WIN32) || defined(_WIN32)
454 #define WTF_OS_WINDOWS 1
455 #endif
456 
457 /* OS(SYMBIAN) - Symbian */
458 #if defined (__SYMBIAN32__)
459 #define WTF_OS_SYMBIAN 1
460 #endif
461 
462 /* OS(UNIX) - Any Unix-like system */
463 #if   OS(AIX)              \
464     || OS(ANDROID)          \
465     || OS(DARWIN)           \
466     || OS(FREEBSD)          \
467     || OS(HAIKU)            \
468     || OS(LINUX)            \
469     || OS(NETBSD)           \
470     || OS(OPENBSD)          \
471     || OS(QNX)              \
472     || OS(SOLARIS)          \
473     || OS(SYMBIAN)          \
474     || defined(unix)        \
475     || defined(__unix)      \
476     || defined(__unix__)
477 #define WTF_OS_UNIX 1
478 #endif
479 
480 /* Operating environments */
481 
482 /* FIXME: these are all mixes of OS, operating environment and policy choices. */
483 /* PLATFORM(CHROMIUM) */
484 /* PLATFORM(QT) */
485 /* PLATFORM(WX) */
486 /* PLATFORM(GTK) */
487 /* PLATFORM(HAIKU) */
488 /* PLATFORM(MAC) */
489 /* PLATFORM(WIN) */
490 #if defined(BUILDING_CHROMIUM__)
491 #define WTF_PLATFORM_CHROMIUM 1
492 #elif defined(BUILDING_QT__)
493 #define WTF_PLATFORM_QT 1
494 #elif defined(BUILDING_WX__)
495 #define WTF_PLATFORM_WX 1
496 #elif defined(BUILDING_GTK__)
497 #define WTF_PLATFORM_GTK 1
498 #elif defined(BUILDING_HAIKU__)
499 #define WTF_PLATFORM_HAIKU 1
500 #elif defined(BUILDING_BREWMP__)
501 #define WTF_PLATFORM_BREWMP 1
502 #if defined(AEE_SIMULATOR)
503 #define WTF_PLATFORM_BREWMP_SIMULATOR 1
504 #else
505 #define WTF_PLATFORM_BREWMP_SIMULATOR 0
506 #endif
507 #undef WTF_OS_WINDOWS
508 #undef WTF_PLATFORM_WIN
509 #elif OS(DARWIN)
510 #define WTF_PLATFORM_MAC 1
511 #elif OS(WINDOWS)
512 #define WTF_PLATFORM_WIN 1
513 #endif
514 
515 /* PLATFORM(IOS) */
516 /* FIXME: this is sometimes used as an OS switch and sometimes for higher-level things */
517 #if (defined(TARGET_OS_EMBEDDED) && TARGET_OS_EMBEDDED) || (defined(TARGET_OS_IPHONE) && TARGET_OS_IPHONE)
518 #define WTF_PLATFORM_IOS 1
519 #endif
520 
521 /* PLATFORM(IOS_SIMULATOR) */
522 #if defined(TARGET_IPHONE_SIMULATOR) && TARGET_IPHONE_SIMULATOR
523 #define WTF_PLATFORM_IOS 1
524 #define WTF_PLATFORM_IOS_SIMULATOR 1
525 #else
526 #define WTF_PLATFORM_IOS_SIMULATOR 0
527 #endif
528 
529 #if !defined(WTF_PLATFORM_IOS)
530 #define WTF_PLATFORM_IOS 0
531 #endif
532 
533 /* PLATFORM(ANDROID) */
534 /* FIXME: this is sometimes used as an OS() switch, and other times to drive
535    policy choices */
536 #if defined(ANDROID)
537 #define WTF_PLATFORM_ANDROID 1
538 #endif
539 
540 /* Graphics engines */
541 
542 /* USE(CG) and PLATFORM(CI) */
543 #if PLATFORM(MAC) || PLATFORM(IOS)
544 #define WTF_USE_CG 1
545 #endif
546 #if PLATFORM(MAC) || PLATFORM(IOS) || (PLATFORM(WIN) && USE(CG))
547 #define WTF_USE_CA 1
548 #endif
549 
550 /* USE(SKIA) for Win/Linux, CG for Mac */
551 #if PLATFORM(CHROMIUM)
552 #if OS(DARWIN)
553 #define WTF_USE_CG 1
554 #define WTF_USE_ATSUI 1
555 #define WTF_USE_CORE_TEXT 1
556 #define WTF_USE_ICCJPEG 1
557 #else
558 #define WTF_USE_SKIA 1
559 #define WTF_USE_CHROMIUM_NET 1
560 #endif
561 #endif
562 
563 #if PLATFORM(BREWMP)
564 #define WTF_USE_SKIA 1
565 #endif
566 
567 #if PLATFORM(GTK)
568 #define WTF_USE_CAIRO 1
569 #endif
570 
571 
572 #if OS(WINCE)
573 #include <ce_time.h>
574 #define WTF_USE_MERSENNE_TWISTER_19937 1
575 #endif
576 
577 #if PLATFORM(QT) && OS(UNIX) && !OS(SYMBIAN) && !OS(DARWIN)
578 #define WTF_USE_PTHREAD_BASED_QT 1
579 #endif
580 
581 #if (PLATFORM(GTK) || PLATFORM(IOS) || PLATFORM(MAC) || PLATFORM(WIN) || (PLATFORM(QT) && (OS(DARWIN) || USE(PTHREAD_BASED_QT)) && !ENABLE(SINGLE_THREADED))) && !defined(ENABLE_JSC_MULTIPLE_THREADS)
582 #define ENABLE_JSC_MULTIPLE_THREADS 1
583 #endif
584 
585 /* On Windows, use QueryPerformanceCounter by default */
586 #if OS(WINDOWS)
587 #define WTF_USE_QUERY_PERFORMANCE_COUNTER  1
588 #endif
589 
590 #if OS(WINCE) && !PLATFORM(QT)
591 #define NOMINMAX       /* Windows min and max conflict with standard macros */
592 #define NOSHLWAPI      /* shlwapi.h not available on WinCe */
593 
594 /* MSDN documentation says these functions are provided with uspce.lib.  But we cannot find this file. */
595 #define __usp10__      /* disable "usp10.h" */
596 
597 #define _INC_ASSERT    /* disable "assert.h" */
598 #define assert(x)
599 
600 #endif  /* OS(WINCE) && !PLATFORM(QT) */
601 
602 #if PLATFORM(QT)
603 #define WTF_USE_QT4_UNICODE 1
604 #elif OS(WINCE)
605 #define WTF_USE_WINCE_UNICODE 1
606 #elif PLATFORM(BREWMP)
607 #define WTF_USE_BREWMP_UNICODE 1
608 #elif PLATFORM(GTK)
609 /* The GTK+ Unicode backend is configurable */
610 #else
611 #define WTF_USE_ICU_UNICODE 1
612 #endif
613 
614 #if PLATFORM(MAC) && !PLATFORM(IOS)
615 #if !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_TIGER) && CPU(X86_64)
616 #define WTF_USE_PLUGIN_HOST_PROCESS 1
617 #endif
618 #if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD)
619 #define ENABLE_GESTURE_EVENTS 1
620 #define ENABLE_RUBBER_BANDING 1
621 #define WTF_USE_WK_SCROLLBAR_PAINTER 1
622 #endif
623 #if !defined(ENABLE_JAVA_BRIDGE)
624 #define ENABLE_JAVA_BRIDGE 1
625 #endif
626 #if !defined(ENABLE_DASHBOARD_SUPPORT)
627 #define ENABLE_DASHBOARD_SUPPORT 1
628 #endif
629 #define WTF_USE_CF 1
630 #define WTF_USE_PTHREADS 1
631 #define HAVE_PTHREAD_RWLOCK 1
632 #define HAVE_READLINE 1
633 #define HAVE_RUNLOOP_TIMER 1
634 #define ENABLE_FULLSCREEN_API 1
635 #define ENABLE_SMOOTH_SCROLLING 1
636 #define ENABLE_WEB_ARCHIVE 1
637 #endif /* PLATFORM(MAC) && !PLATFORM(IOS) */
638 
639 #if PLATFORM(CHROMIUM) && OS(DARWIN)
640 #define WTF_USE_CF 1
641 #define WTF_USE_PTHREADS 1
642 #define HAVE_PTHREAD_RWLOCK 1
643 #endif
644 
645 #if PLATFORM(BREWMP)
646 #define ENABLE_SINGLE_THREADED 1
647 #endif
648 
649 #if PLATFORM(QT) && OS(DARWIN)
650 #define WTF_USE_CF 1
651 #endif
652 
653 #if OS(DARWIN) && !defined(BUILDING_ON_TIGER) && !PLATFORM(GTK) && !PLATFORM(QT)
654 #define ENABLE_PURGEABLE_MEMORY 1
655 #endif
656 
657 #if PLATFORM(IOS)
658 #define ENABLE_CONTEXT_MENUS 0
659 #define ENABLE_DRAG_SUPPORT 0
660 #define ENABLE_DATA_TRANSFER_ITEMS 0
661 #define ENABLE_FTPDIR 1
662 #define ENABLE_GEOLOCATION 1
663 #define ENABLE_ICONDATABASE 0
664 #define ENABLE_INSPECTOR 0
665 #define ENABLE_JAVA_BRIDGE 0
666 #define ENABLE_NETSCAPE_PLUGIN_API 0
667 #define ENABLE_ORIENTATION_EVENTS 1
668 #define ENABLE_REPAINT_THROTTLING 1
669 #define HAVE_READLINE 1
670 #define WTF_USE_CF 1
671 #define WTF_USE_PTHREADS 1
672 #define HAVE_PTHREAD_RWLOCK 1
673 #define ENABLE_WEB_ARCHIVE 1
674 #endif
675 
676 #if PLATFORM(ANDROID)
677 #define WEBCORE_NAVIGATOR_VENDOR "Google Inc."
678 
679 // Force LOG_ERROR() to be enabled in all builds. All other logging and
680 // assertions are enabled in debug builds only.
681 #define ERROR_DISABLED 0
682 
683 // This must be defined before we include FastMalloc.h in config.h.
684 #define USE_SYSTEM_MALLOC 1
685 
686 // USE defines
687 #define WTF_USE_PTHREADS 1
688 #define WTF_USE_SKIA 1
689 #if !defined WTF_USE_ACCELERATED_COMPOSITING
690 #define WTF_USE_ACCELERATED_COMPOSITING 1
691 #define ENABLE_3D_RENDERING 1
692 #endif
693 
694 // ENABLE guards
695 #define ENABLE_JAVA_BRIDGE 1
696 // Prevents Webkit from drawing the caret in textfields and textareas
697 // This prevents unnecessary invals.
698 #define ENABLE_TEXT_CARET 1
699 #define ENABLE_JAVASCRIPT_DEBUGGER 0
700 #define ENABLE_ORIENTATION_EVENTS 1
701 #if !defined(ENABLE_JIT) && !ENABLE(ANDROID_JSC_JIT)
702 #define ENABLE_JIT 0
703 #endif
704 #define ENABLE_WEB_ARCHIVE 1
705 #define ENABLE_FULLSCREEN_API 1
706 #define ENABLE_DOM_STORAGE 1
707 #define ENABLE_FTPDIR 0
708 #ifndef ENABLE_SVG
709 #define ENABLE_SVG 0
710 #endif
711 #define ENABLE_VIDEO 1
712 #if ENABLE_SVG
713 #if !defined(ENABLE_SVG_ANIMATION)
714 #define ENABLE_SVG_ANIMATION 0
715 #endif
716 #define ENABLE_SVG_AS_IMAGE 1
717 #define ENABLE_SVG_FILTERS 1
718 #define ENABLE_SVG_FONTS 1
719 #define ENABLE_SVG_FOREIGN_OBJECT 1
720 #define ENABLE_SVG_USE 1
721 #endif
722 #define ENABLE_XBL 0
723 #define ENABLE_XHTMLMP 0
724 #define ENABLE_XPATH 1
725 #define ENABLE_XSLT 1
726 #define ENABLE_OFFLINE_WEB_APPLICATIONS 1
727 #define ENABLE_TOUCH_EVENTS 1
728 #define ENABLE_GEOLOCATION 1
729 #define ENABLE_CLIENT_BASED_GEOLOCATION 1
730 #define ENABLE_INSPECTOR 0
731 #define ENABLE_EVENT_SOURCE 0
732 #define ENABLE_DEVICE_ORIENTATION 1
733 #define ENABLE_FILE_READER 1
734 #define ENABLE_BLOB 1
735 // Converts ListBoxes to dropdown popup lists.
736 #define ENABLE_NO_LISTBOX_RENDERING 1
737 #define ENABLE_LINK_PREFETCH 1
738 #define ENABLE_WEB_TIMING 1
739 #define ENABLE_MEDIA_CAPTURE 1
740 
741 // Android ENABLE guards not present upstream
742 #define ENABLE_COMPOSITED_FIXED_ELEMENTS 1 // FIXME: Rename to ENABLE_ANDROID_COMPOSITED_FIXED_ELEMENTS
743 #define ENABLE_APPLICATION_INSTALLED 1 // FIXME: Rename to ENABLE_ANDROID_APPLICATION_INSTALLED
744 #define ENABLE_ANDROID_INSTALLABLE_WEB_APPS 1
745 // Enable scrollable divs in separate layers.  This might be upstreamed to
746 // webkit.org but for now, it is just an Android feature.
747 #define ENABLE_ANDROID_OVERFLOW_SCROLL 1
748 
749 // Other Android guards not present upstream
750 #define ANDROID_FLATTEN_FRAMESET
751 #define ANDROID_LAYOUT
752 #define ANDROID_FIX
753 // Ensure that the fixed elements are always relative to the top document.
754 #define ANDROID_FIXED_ELEMENTS
755 // Passes the webkit-originated changes of a focused textfield to our UI
756 // thread
757 #define ANDROID_ACCEPT_CHANGES_TO_FOCUSED_TEXTFIELDS
758 #define ANDROID_META_SUPPORT
759 #define ANDROID_MULTIPLE_WINDOWS
760 #define ANDROID_CSS_TAP_HIGHLIGHT_COLOR
761 #define ANDROID_BLOCK_NETWORK_IMAGE
762 // Changes needed to support native plugins (npapi.h). If the change is generic,
763 // it may be under a different #define (see: PLUGIN_PLATFORM_SETVALUE,
764 // PLUGIN_SCHEDULE_TIMER)
765 #define ANDROID_PLUGINS
766 // This enables a portable implementation of NPN_[Un]ScheduleTimer
767 // Will submit this as a patch to apple
768 #define PLUGIN_SCHEDULE_TIMER // FIXME: Rename to ANDROID_PLUGIN_SCHEDULE_TIMER
769 // This adds platformInit() and platformSetValue() to pluginview
770 // Will submit this as a patch to apple
771 #define PLUGIN_PLATFORM_SETVALUE // FIXME: Rename to ANDROID_PLUGIN_PLATFORM_SETVALUE
772 // This enables logging the DOM tree, Render tree even for the release build
773 #define ANDROID_DOM_LOGGING
774 // Notify WebViewCore when a clipped out rectangle is drawn,
775 // so that all invals are captured by the display tree.
776 #define ANDROID_CAPTURE_OFFSCREEN_PAINTS
777 // Enable dumping the display tree to a file (triggered in WebView.java)
778 #define ANDROID_DUMP_DISPLAY_TREE
779 // Animated GIF support.
780 #define ANDROID_ANIMATED_GIF
781 // apple-touch-icon support in <link> tags
782 #define ANDROID_APPLE_TOUCH_ICON
783 
784 // This is present in JavaScriptCore/config.h, which Android does not use.
785 #define WTF_CHANGES 1
786 #endif /* PLATFORM(ANDROID) */
787 
788 #if PLATFORM(WIN) && !OS(WINCE)
789 #define WTF_USE_CF 1
790 #define WTF_USE_PTHREADS 0
791 #endif
792 
793 #if PLATFORM(WIN) && !OS(WINCE) && !PLATFORM(CHROMIUM) && !defined(WIN_CAIRO)
794 #define WTF_USE_CFNETWORK 1
795 #endif
796 
797 #if USE(CFNETWORK) || PLATFORM(MAC)
798 #define WTF_USE_CFURLCACHE 1
799 #define WTF_USE_CFURLSTORAGESESSIONS 1
800 #endif
801 
802 #if PLATFORM(WIN) && !OS(WINCE) && !PLATFORM(CHROMIUM) && !PLATFORM(QT)
803 #define ENABLE_WEB_ARCHIVE 1
804 #endif
805 
806 #if PLATFORM(WX)
807 #define ENABLE_ASSEMBLER 1
808 #define ENABLE_GLOBAL_FASTMALLOC_NEW 0
809 #if OS(DARWIN)
810 #define WTF_USE_CF 1
811 #ifndef BUILDING_ON_TIGER
812 #define WTF_USE_CORE_TEXT 1
813 #define ENABLE_WEB_ARCHIVE 1
814 #else
815 #define WTF_USE_ATSUI 1
816 #endif
817 #endif
818 #endif
819 
820 #if PLATFORM(GTK)
821 #if HAVE(PTHREAD_H)
822 #define WTF_USE_PTHREADS 1
823 #define HAVE_PTHREAD_RWLOCK 1
824 #endif
825 #endif
826 
827 #if PLATFORM(HAIKU)
828 #define HAVE_POSIX_MEMALIGN 1
829 #define WTF_USE_CURL 1
830 #define WTF_USE_PTHREADS 1
831 #define HAVE_PTHREAD_RWLOCK 1
832 #define USE_SYSTEM_MALLOC 1
833 #define ENABLE_NETSCAPE_PLUGIN_API 0
834 #endif
835 
836 #if PLATFORM(BREWMP)
837 #define USE_SYSTEM_MALLOC 1
838 #endif
839 
840 #if PLATFORM(BREWMP_SIMULATOR)
841 #define ENABLE_JIT 0
842 #endif
843 
844 #if !defined(HAVE_ACCESSIBILITY)
845 #if PLATFORM(IOS) || PLATFORM(MAC) || PLATFORM(WIN) || PLATFORM(GTK) || PLATFORM(CHROMIUM)
846 #define HAVE_ACCESSIBILITY 1
847 #endif
848 #endif /* !defined(HAVE_ACCESSIBILITY) */
849 
850 #if OS(UNIX) && !OS(SYMBIAN)
851 #define HAVE_SIGNAL_H 1
852 #endif
853 
854 #if !defined(HAVE_STRNSTR)
855 #if OS(DARWIN) || OS(FREEBSD)
856 #define HAVE_STRNSTR 1
857 #endif
858 #endif
859 
860 #if !OS(WINDOWS) && !OS(SOLARIS) && !OS(QNX) \
861     && !OS(SYMBIAN) && !OS(HAIKU) && !OS(RVCT) \
862     && !OS(ANDROID) && !PLATFORM(BREWMP)
863 #define HAVE_TM_GMTOFF 1
864 #define HAVE_TM_ZONE 1
865 #define HAVE_TIMEGM 1
866 #endif
867 
868 #if OS(DARWIN)
869 
870 #define HAVE_ERRNO_H 1
871 #define HAVE_LANGINFO_H 1
872 #define HAVE_MMAP 1
873 #define HAVE_MERGESORT 1
874 #define HAVE_SBRK 1
875 #define HAVE_STRINGS_H 1
876 #define HAVE_SYS_PARAM_H 1
877 #define HAVE_SYS_TIME_H 1
878 #define HAVE_SYS_TIMEB_H 1
879 #define WTF_USE_ACCELERATE 1
880 
881 #if !defined(TARGETING_TIGER) && !defined(TARGETING_LEOPARD)
882 
883 #define HAVE_DISPATCH_H 1
884 #define HAVE_HOSTED_CORE_ANIMATION 1
885 
886 #if !PLATFORM(IOS)
887 #define HAVE_MADV_FREE_REUSE 1
888 #define HAVE_MADV_FREE 1
889 #define HAVE_PTHREAD_SETNAME_NP 1
890 #endif
891 
892 #endif
893 
894 #if PLATFORM(IOS)
895 #define HAVE_MADV_FREE 1
896 #endif
897 
898 #elif OS(WINDOWS)
899 
900 #if OS(WINCE)
901 #define HAVE_ERRNO_H 0
902 #else
903 #define HAVE_SYS_TIMEB_H 1
904 #define HAVE_ALIGNED_MALLOC 1
905 #define HAVE_ISDEBUGGERPRESENT 1
906 #endif
907 #define HAVE_VIRTUALALLOC 1
908 
909 #elif OS(SYMBIAN)
910 
911 #define HAVE_ERRNO_H 1
912 #define HAVE_MMAP 0
913 #define HAVE_SBRK 1
914 
915 #define HAVE_SYS_TIME_H 1
916 #define HAVE_STRINGS_H 1
917 
918 #if !COMPILER(RVCT)
919 #define HAVE_SYS_PARAM_H 1
920 #endif
921 
922 #elif PLATFORM(BREWMP)
923 
924 #define HAVE_ERRNO_H 1
925 
926 #elif OS(QNX)
927 
928 #define HAVE_ERRNO_H 1
929 #define HAVE_MMAP 1
930 #define HAVE_SBRK 1
931 #define HAVE_STRINGS_H 1
932 #define HAVE_SYS_PARAM_H 1
933 #define HAVE_SYS_TIME_H 1
934 
935 #elif OS(ANDROID)
936 
937 #define HAVE_ERRNO_H 1
938 #define HAVE_LANGINFO_H 0
939 #define HAVE_MMAP 1
940 #define HAVE_SBRK 1
941 #define HAVE_STRINGS_H 1
942 #define HAVE_SYS_PARAM_H 1
943 #define HAVE_SYS_TIME_H 1
944 
945 #else
946 
947 /* FIXME: is this actually used or do other platforms generate their own config.h? */
948 
949 #define HAVE_ERRNO_H 1
950 /* As long as Haiku doesn't have a complete support of locale this will be disabled. */
951 #if !OS(HAIKU)
952 #define HAVE_LANGINFO_H 1
953 #endif
954 #define HAVE_MMAP 1
955 #define HAVE_SBRK 1
956 #define HAVE_STRINGS_H 1
957 #define HAVE_SYS_PARAM_H 1
958 #define HAVE_SYS_TIME_H 1
959 
960 #endif
961 
962 /* ENABLE macro defaults */
963 
964 #if PLATFORM(QT)
965 /* We must not customize the global operator new and delete for the Qt port. */
966 #define ENABLE_GLOBAL_FASTMALLOC_NEW 0
967 #if !OS(UNIX) || OS(SYMBIAN)
968 #define USE_SYSTEM_MALLOC 1
969 #endif
970 #endif
971 
972 /* fastMalloc match validation allows for runtime verification that
973    new is matched by delete, fastMalloc is matched by fastFree, etc. */
974 #if !defined(ENABLE_FAST_MALLOC_MATCH_VALIDATION)
975 #define ENABLE_FAST_MALLOC_MATCH_VALIDATION 0
976 #endif
977 
978 #if !defined(ENABLE_ICONDATABASE)
979 #define ENABLE_ICONDATABASE 1
980 #endif
981 
982 #if !defined(ENABLE_DATABASE)
983 #define ENABLE_DATABASE 1
984 #endif
985 
986 #if !defined(ENABLE_JAVASCRIPT_DEBUGGER)
987 #define ENABLE_JAVASCRIPT_DEBUGGER 1
988 #endif
989 
990 #if !defined(ENABLE_FTPDIR)
991 #define ENABLE_FTPDIR 1
992 #endif
993 
994 #if !defined(ENABLE_CONTEXT_MENUS)
995 #define ENABLE_CONTEXT_MENUS 1
996 #endif
997 
998 #if !defined(ENABLE_DRAG_SUPPORT)
999 #define ENABLE_DRAG_SUPPORT 1
1000 #endif
1001 
1002 #if !defined(ENABLE_DATA_TRANSFER_ITEMS)
1003 #define ENABLE_DATA_TRANSFER_ITEMS 0
1004 #endif
1005 
1006 #if !defined(ENABLE_DASHBOARD_SUPPORT)
1007 #define ENABLE_DASHBOARD_SUPPORT 0
1008 #endif
1009 
1010 #if !defined(ENABLE_INSPECTOR)
1011 #define ENABLE_INSPECTOR 1
1012 #endif
1013 
1014 #if !defined(ENABLE_JAVA_BRIDGE)
1015 #define ENABLE_JAVA_BRIDGE 0
1016 #endif
1017 
1018 #if !defined(ENABLE_NETSCAPE_PLUGIN_API)
1019 #define ENABLE_NETSCAPE_PLUGIN_API 1
1020 #endif
1021 
1022 #if !defined(ENABLE_NETSCAPE_PLUGIN_METADATA_CACHE)
1023 #define ENABLE_NETSCAPE_PLUGIN_METADATA_CACHE 0
1024 #endif
1025 
1026 #if !defined(ENABLE_PURGEABLE_MEMORY)
1027 #define ENABLE_PURGEABLE_MEMORY 0
1028 #endif
1029 
1030 #if !defined(WTF_USE_PLUGIN_HOST_PROCESS)
1031 #define WTF_USE_PLUGIN_HOST_PROCESS 0
1032 #endif
1033 
1034 #if !defined(ENABLE_ORIENTATION_EVENTS)
1035 #define ENABLE_ORIENTATION_EVENTS 0
1036 #endif
1037 
1038 #if !defined(ENABLE_OPCODE_STATS)
1039 #define ENABLE_OPCODE_STATS 0
1040 #endif
1041 
1042 #if !defined(ENABLE_GLOBAL_FASTMALLOC_NEW)
1043 #define ENABLE_GLOBAL_FASTMALLOC_NEW 1
1044 #endif
1045 
1046 #define ENABLE_DEBUG_WITH_BREAKPOINT 0
1047 #define ENABLE_SAMPLING_COUNTERS 0
1048 #define ENABLE_SAMPLING_FLAGS 0
1049 #define ENABLE_OPCODE_SAMPLING 0
1050 #define ENABLE_CODEBLOCK_SAMPLING 0
1051 #if ENABLE(CODEBLOCK_SAMPLING) && !ENABLE(OPCODE_SAMPLING)
1052 #error "CODEBLOCK_SAMPLING requires OPCODE_SAMPLING"
1053 #endif
1054 #if ENABLE(OPCODE_SAMPLING) || ENABLE(SAMPLING_FLAGS)
1055 #define ENABLE_SAMPLING_THREAD 1
1056 #endif
1057 
1058 #if !defined(ENABLE_GEOLOCATION)
1059 #define ENABLE_GEOLOCATION 0
1060 #endif
1061 
1062 #if !defined(ENABLE_GESTURE_RECOGNIZER)
1063 #define ENABLE_GESTURE_RECOGNIZER 0
1064 #endif
1065 
1066 #if !defined(ENABLE_NOTIFICATIONS)
1067 #define ENABLE_NOTIFICATIONS 0
1068 #endif
1069 
1070 #if PLATFORM(IOS)
1071 #define ENABLE_TEXT_CARET 0
1072 #endif
1073 
1074 #if !defined(ENABLE_TEXT_CARET)
1075 #define ENABLE_TEXT_CARET 1
1076 #endif
1077 
1078 #if !defined(ENABLE_ON_FIRST_TEXTAREA_FOCUS_SELECT_ALL)
1079 #define ENABLE_ON_FIRST_TEXTAREA_FOCUS_SELECT_ALL 0
1080 #endif
1081 
1082 #if !defined(ENABLE_FULLSCREEN_API)
1083 #define ENABLE_FULLSCREEN_API 0
1084 #endif
1085 
1086 #if !defined(WTF_USE_JSVALUE64) && !defined(WTF_USE_JSVALUE32_64)
1087 #if (CPU(X86_64) && (OS(UNIX) || OS(WINDOWS))) \
1088     || (CPU(IA64) && !CPU(IA64_32)) \
1089     || CPU(ALPHA) \
1090     || CPU(SPARC64) \
1091     || CPU(S390X) \
1092     || CPU(PPC64)
1093 #define WTF_USE_JSVALUE64 1
1094 #else
1095 #define WTF_USE_JSVALUE32_64 1
1096 #endif
1097 #endif /* !defined(WTF_USE_JSVALUE64) && !defined(WTF_USE_JSVALUE32_64) */
1098 
1099 #if !defined(ENABLE_REPAINT_THROTTLING)
1100 #define ENABLE_REPAINT_THROTTLING 0
1101 #endif
1102 
1103 /* Disable the JIT on versions of GCC prior to 4.1 */
1104 #if !defined(ENABLE_JIT) && COMPILER(GCC) && !GCC_VERSION_AT_LEAST(4, 1, 0)
1105 #define ENABLE_JIT 0
1106 #endif
1107 
1108 /* JIT is not implemented for 64 bit on MSVC */
1109 #if !defined(ENABLE_JIT) && COMPILER(MSVC) && CPU(X86_64)
1110 #define ENABLE_JIT 0
1111 #endif
1112 
1113 /* The JIT is enabled by default on all x86, x64-64, ARM & MIPS platforms. */
1114 #if !defined(ENABLE_JIT) \
1115     && (CPU(X86) || CPU(X86_64) || CPU(ARM) || CPU(MIPS)) \
1116     && (OS(DARWIN) || !COMPILER(GCC) || GCC_VERSION_AT_LEAST(4, 1, 0)) \
1117     && !OS(WINCE)
1118 #define ENABLE_JIT 1
1119 #endif
1120 
1121 /* Currently only implemented for JSVALUE64, only tested on PLATFORM(MAC) */
1122 #if ENABLE(JIT) && USE(JSVALUE64) && PLATFORM(MAC)
1123 #define ENABLE_DFG_JIT 1
1124 /* Enabled with restrictions to circumvent known performance regressions. */
1125 #define ENABLE_DFG_JIT_RESTRICTIONS 1
1126 #endif
1127 
1128 /* Ensure that either the JIT or the interpreter has been enabled. */
1129 #if !defined(ENABLE_INTERPRETER) && !ENABLE(JIT)
1130 #define ENABLE_INTERPRETER 1
1131 #endif
1132 #if !(ENABLE(JIT) || ENABLE(INTERPRETER))
1133 #error You have to have at least one execution model enabled to build JSC
1134 #endif
1135 
1136 #if CPU(SH4) && PLATFORM(QT)
1137 #define ENABLE_JIT 1
1138 #define ENABLE_YARR 1
1139 #define ENABLE_YARR_JIT 1
1140 #define WTF_USE_JIT_STUB_ARGUMENT_REGISTER 1
1141 #define ENABLE_ASSEMBLER 1
1142 #endif
1143 
1144 /* Configure the JIT */
1145 #if ENABLE(JIT)
1146     #if CPU(ARM)
1147     #if !defined(ENABLE_JIT_USE_SOFT_MODULO) && WTF_ARM_ARCH_AT_LEAST(5)
1148     #define ENABLE_JIT_USE_SOFT_MODULO 1
1149     #endif
1150     #endif
1151 
1152     #ifndef ENABLE_JIT_OPTIMIZE_CALL
1153     #define ENABLE_JIT_OPTIMIZE_CALL 1
1154     #endif
1155     #ifndef ENABLE_JIT_OPTIMIZE_NATIVE_CALL
1156     #define ENABLE_JIT_OPTIMIZE_NATIVE_CALL 1
1157     #endif
1158     #ifndef ENABLE_JIT_OPTIMIZE_PROPERTY_ACCESS
1159     #define ENABLE_JIT_OPTIMIZE_PROPERTY_ACCESS 1
1160     #endif
1161     #ifndef ENABLE_JIT_OPTIMIZE_METHOD_CALLS
1162     #define ENABLE_JIT_OPTIMIZE_METHOD_CALLS 1
1163     #endif
1164 #endif
1165 
1166 #if CPU(X86) && COMPILER(MSVC)
1167 #define JSC_HOST_CALL __fastcall
1168 #elif CPU(X86) && COMPILER(GCC)
1169 #define JSC_HOST_CALL __attribute__ ((fastcall))
1170 #else
1171 #define JSC_HOST_CALL
1172 #endif
1173 
1174 /* Configure the interpreter */
1175 #if COMPILER(GCC) || (RVCT_VERSION_AT_LEAST(4, 0, 0, 0) && defined(__GNUC__))
1176 #define HAVE_COMPUTED_GOTO 1
1177 #endif
1178 #if HAVE(COMPUTED_GOTO) && ENABLE(INTERPRETER)
1179 #define ENABLE_COMPUTED_GOTO_INTERPRETER 1
1180 #endif
1181 
1182 /* Regular Expression Tracing - Set to 1 to trace RegExp's in jsc.  Results dumped at exit */
1183 #define ENABLE_REGEXP_TRACING 0
1184 
1185 /* Yet Another Regex Runtime - turned on by default for JIT enabled ports. */
1186 #if PLATFORM(CHROMIUM)
1187 #define ENABLE_YARR_JIT 0
1188 
1189 #elif ENABLE(JIT) && !defined(ENABLE_YARR_JIT)
1190 #define ENABLE_YARR_JIT 1
1191 
1192 /* Setting this flag compares JIT results with interpreter results. */
1193 #define ENABLE_YARR_JIT_DEBUG 0
1194 #endif
1195 
1196 #if ENABLE(JIT) || ENABLE(YARR_JIT)
1197 #define ENABLE_ASSEMBLER 1
1198 #endif
1199 /* Setting this flag prevents the assembler from using RWX memory; this may improve
1200    security but currectly comes at a significant performance cost. */
1201 #if PLATFORM(IOS)
1202 #define ENABLE_ASSEMBLER_WX_EXCLUSIVE 1
1203 #endif
1204 
1205 /* Pick which allocator to use; we only need an executable allocator if the assembler is compiled in.
1206    On x86-64 we use a single fixed mmap, on other platforms we mmap on demand. */
1207 #if ENABLE(ASSEMBLER)
1208 #if CPU(X86_64)
1209 #define ENABLE_EXECUTABLE_ALLOCATOR_FIXED 1
1210 #else
1211 #define ENABLE_EXECUTABLE_ALLOCATOR_DEMAND 1
1212 #endif
1213 #endif
1214 
1215 #if !defined(ENABLE_PAN_SCROLLING) && OS(WINDOWS)
1216 #define ENABLE_PAN_SCROLLING 1
1217 #endif
1218 
1219 #if !defined(ENABLE_SMOOTH_SCROLLING)
1220 #define ENABLE_SMOOTH_SCROLLING 0
1221 #endif
1222 
1223 #if !defined(ENABLE_WEB_ARCHIVE)
1224 #define ENABLE_WEB_ARCHIVE 0
1225 #endif
1226 
1227 /* Use the QXmlStreamReader implementation for XMLDocumentParser */
1228 /* Use the QXmlQuery implementation for XSLTProcessor */
1229 #if PLATFORM(QT)
1230 #define WTF_USE_QXMLSTREAM 1
1231 #define WTF_USE_QXMLQUERY 1
1232 #endif
1233 
1234 #if PLATFORM(MAC)
1235 /* Complex text framework */
1236 #if !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)
1237 #define WTF_USE_ATSUI 0
1238 #define WTF_USE_CORE_TEXT 1
1239 #else
1240 #define WTF_USE_ATSUI 1
1241 #define WTF_USE_CORE_TEXT 0
1242 #endif
1243 #endif
1244 
1245 /* Accelerated compositing */
1246 #if (PLATFORM(MAC) && !defined(BUILDING_ON_TIGER)) || PLATFORM(IOS) || PLATFORM(QT) || (PLATFORM(WIN) && !OS(WINCE) &&!defined(WIN_CAIRO))
1247 #define WTF_USE_ACCELERATED_COMPOSITING 1
1248 #endif
1249 
1250 #if (PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD)) || PLATFORM(IOS)
1251 #define WTF_USE_PROTECTION_SPACE_AUTH_CALLBACK 1
1252 #endif
1253 
1254 #if PLATFORM(MAC) && !defined(BUILDING_ON_TIGER) && !defined(BUILDING_ON_LEOPARD) && !defined(BUILDING_ON_SNOW_LEOPARD)
1255 #define WTF_USE_AVFOUNDATION 1
1256 #endif
1257 
1258 #if COMPILER(GCC)
1259 #define WARN_UNUSED_RETURN __attribute__ ((warn_unused_result))
1260 #else
1261 #define WARN_UNUSED_RETURN
1262 #endif
1263 
1264 #if !ENABLE(NETSCAPE_PLUGIN_API) || (ENABLE(NETSCAPE_PLUGIN_API) && ((OS(UNIX) && (PLATFORM(QT) || PLATFORM(WX))) || PLATFORM(GTK)))
1265 #define ENABLE_PLUGIN_PACKAGE_SIMPLE_HASH 1
1266 #endif
1267 
1268 /* Set up a define for a common error that is intended to cause a build error -- thus the space after Error. */
1269 #define WTF_PLATFORM_CFNETWORK Error USE_macro_should_be_used_with_CFNETWORK
1270 
1271 #define ENABLE_JSC_ZOMBIES 0
1272 
1273 /* FIXME: Eventually we should enable this for all platforms and get rid of the define. */
1274 #if PLATFORM(MAC) || PLATFORM(WIN) || PLATFORM(QT)
1275 #define WTF_USE_PLATFORM_STRATEGIES 1
1276 #endif
1277 
1278 #if PLATFORM(WIN)
1279 #define WTF_USE_CROSS_PLATFORM_CONTEXT_MENUS 1
1280 #endif
1281 
1282 /* Geolocation request policy. pre-emptive policy is to acquire user permission before acquiring location.
1283    Client based implementations will have option to choose between pre-emptive and nonpre-emptive permission policy.
1284    pre-emptive permission policy is enabled by default for all client-based implementations. */
1285 #if ENABLE(CLIENT_BASED_GEOLOCATION)
1286 #define WTF_USE_PREEMPT_GEOLOCATION_PERMISSION 1
1287 #endif
1288 
1289 #if CPU(ARM_THUMB2)
1290 #define ENABLE_BRANCH_COMPACTION 1
1291 #endif
1292 
1293 #if ENABLE(GLIB_SUPPORT)
1294 #include "GTypedefs.h"
1295 #endif
1296 
1297 /* FIXME: This define won't be needed once #27551 is fully landed. However,
1298    since most ports try to support sub-project independence, adding new headers
1299    to WTF causes many ports to break, and so this way we can address the build
1300    breakages one port at a time. */
1301 #define WTF_USE_EXPORT_MACROS 0
1302 
1303 #if PLATFORM(QT) || PLATFORM(GTK)
1304 #define WTF_USE_UNIX_DOMAIN_SOCKETS 1
1305 #endif
1306 
1307 #endif /* WTF_Platform_h */
1308