11 #if defined(__ANDROID__)
12 # include <sys/cdefs.h>
13 #elif defined(__APPLE__)
14 # include <TargetConditionals.h>
15 #elif defined(__linux__
)
16 # include <features.h>
27 #if defined(__GLIBC__
) && defined(__GLIBC_MINOR__
)
28 # define V8_GLIBC_PREREQ(major, minor)
29 ((__GLIBC__
* 100
+ __GLIBC_MINOR__
) >= ((major) * 100
+ (minor)))
31 # define V8_GLIBC_PREREQ(major, minor) 0
42 #if defined(__GNUC__
) && defined(__GNUC_MINOR__
) && defined(__GNUC_PATCHLEVEL__
)
43 # define V8_GNUC_PREREQ(major, minor, patchlevel)
44 ((__GNUC__
* 10000
+ __GNUC_MINOR__
* 100
+ __GNUC_PATCHLEVEL__
) >=
45 ((major) * 10000
+ (minor) * 100
+ (patchlevel)))
46 #elif defined(__GNUC__) && defined(__GNUC_MINOR__)
47 # define V8_GNUC_PREREQ(major, minor, patchlevel)
48 ((__GNUC__ * 10000
+ __GNUC_MINOR__ * 100
) >=
49 ((major) * 10000
+ (minor) * 100
+ (patchlevel)))
51 # define V8_GNUC_PREREQ(major, minor, patchlevel) 0
75 #if defined(__ANDROID__)
76 # define V8_OS_ANDROID 1
77 # define V8_OS_LINUX 1
78 # define V8_OS_POSIX 1
79 #elif defined(__APPLE__)
81 # define V8_OS_MACOSX 1
82 # define V8_OS_POSIX 1
83 #elif defined(__native_client__)
85 # define V8_OS_POSIX 1
86 #elif defined(__CYGWIN__)
87 # define V8_OS_CYGWIN 1
88 # define V8_OS_POSIX 1
89 #elif defined(__linux__
)
90 # define V8_OS_LINUX 1
91 # define V8_OS_POSIX 1
93 # define V8_OS_POSIX 1
94 # define V8_OS_SOLARIS 1
98 #elif defined(__FreeBSD__)
100 # define V8_OS_FREEBSD 1
101 # define V8_OS_POSIX 1
102 #elif defined(__DragonFly__)
104 # define V8_OS_DRAGONFLYBSD 1
105 # define V8_OS_POSIX 1
106 #elif defined(__NetBSD__)
108 # define V8_OS_NETBSD 1
109 # define V8_OS_POSIX 1
110 #elif defined(__OpenBSD__)
112 # define V8_OS_OPENBSD 1
113 # define V8_OS_POSIX 1
114 #elif defined(__QNXNTO__)
115 # define V8_OS_POSIX 1
117 #elif defined(_WIN32)
137 #if defined (_MSC_VER)
138 # define V8_LIBC_MSVCRT 1
139 #elif defined(__BIONIC__)
140 # define V8_LIBC_BIONIC 1
141 # define V8_LIBC_BSD 1
142 #elif defined(__UCLIBC__)
144 # define V8_LIBC_UCLIBC 1
145 #elif defined(__GLIBC__
) || defined(__GNU_LIBRARY__
)
146 # define V8_LIBC_GLIBC 1
148 # define V8_LIBC_BSD V8_OS_BSD
201 #if defined(__clang__
)
203 #if defined(__GNUC__
)
208 # define V8_HAS___ALIGNOF 1
209 # define V8_HAS___ALIGNOF__ V8_HAS___ALIGNOF
211 # define V8_HAS_ATTRIBUTE_ALIGNED (__has_attribute(aligned))
212 # define V8_HAS_ATTRIBUTE_ALWAYS_INLINE (__has_attribute(always_inline))
213 # define V8_HAS_ATTRIBUTE_DEPRECATED (__has_attribute(deprecated))
214 # define V8_HAS_ATTRIBUTE_NOINLINE (__has_attribute(noinline))
215 # define V8_HAS_ATTRIBUTE_UNUSED (__has_attribute(unused))
216 # define V8_HAS_ATTRIBUTE_VISIBILITY (__has_attribute(visibility))
217 # define V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT
218 (__has_attribute(warn_unused_result))
220 # define V8_HAS_BUILTIN_CLZ (__has_builtin(__builtin_clz))
221 # define V8_HAS_BUILTIN_CTZ (__has_builtin(__builtin_ctz))
222 # define V8_HAS_BUILTIN_EXPECT (__has_builtin(__builtin_expect))
223 # define V8_HAS_BUILTIN_FRAME_ADDRESS (__has_builtin(__builtin_frame_address))
224 # define V8_HAS_BUILTIN_POPCOUNT (__has_builtin(__builtin_popcount))
225 # define V8_HAS_BUILTIN_SADD_OVERFLOW (__has_builtin(__builtin_sadd_overflow))
226 # define V8_HAS_BUILTIN_SSUB_OVERFLOW (__has_builtin(__builtin_ssub_overflow))
227 # define V8_HAS_BUILTIN_UADD_OVERFLOW (__has_builtin(__builtin_uadd_overflow))
229 # define V8_HAS_CXX11_ALIGNAS (__has_feature(cxx_alignas))
230 # define V8_HAS_CXX11_STATIC_ASSERT (__has_feature(cxx_static_assert))
232 #elif defined(__GNUC__)
235 # if defined(__INTEL_COMPILER)
236 # define V8_CC_INTEL 1
238 # if defined(__MINGW32__)
239 # define V8_CC_MINGW32 1
241 # if defined(__MINGW64__)
242 # define V8_CC_MINGW64 1
244 # define V8_CC_MINGW (V8_CC_MINGW32 || V8_CC_MINGW64)
246 # define V8_HAS___ALIGNOF__ (V8_GNUC_PREREQ(4
, 3
, 0
))
248 # define V8_HAS_ATTRIBUTE_ALIGNED (V8_GNUC_PREREQ(2
, 95
, 0
))
252 # define V8_HAS_ATTRIBUTE_ALWAYS_INLINE (V8_GNUC_PREREQ(4
, 4
, 0
))
253 # define V8_HAS_ATTRIBUTE_DEPRECATED (V8_GNUC_PREREQ(3
, 4
, 0
))
254 # define V8_HAS_ATTRIBUTE_DEPRECATED_MESSAGE (V8_GNUC_PREREQ(4
, 5
, 0
))
255 # define V8_HAS_ATTRIBUTE_NOINLINE (V8_GNUC_PREREQ(3
, 4
, 0
))
256 # define V8_HAS_ATTRIBUTE_UNUSED (V8_GNUC_PREREQ(2
, 95
, 0
))
257 # define V8_HAS_ATTRIBUTE_VISIBILITY (V8_GNUC_PREREQ(4
, 3
, 0
))
258 # define V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT
259 (!V8_CC_INTEL && V8_GNUC_PREREQ(4
, 1
, 0
))
261 # define V8_HAS_BUILTIN_CLZ (V8_GNUC_PREREQ(3
, 4
, 0
))
262 # define V8_HAS_BUILTIN_CTZ (V8_GNUC_PREREQ(3
, 4
, 0
))
263 # define V8_HAS_BUILTIN_EXPECT (V8_GNUC_PREREQ(2
, 96
, 0
))
264 # define V8_HAS_BUILTIN_FRAME_ADDRESS (V8_GNUC_PREREQ(2
, 96
, 0
))
265 # define V8_HAS_BUILTIN_POPCOUNT (V8_GNUC_PREREQ(3
, 4
, 0
))
273 # if defined(__GXX_EXPERIMENTAL_CXX0X__) || __cplusplus >= 201103L
274 # define V8_HAS_CXX11_ALIGNAS (V8_GNUC_PREREQ(4
, 8
, 0
))
275 # define V8_HAS_CXX11_ALIGNOF (V8_GNUC_PREREQ(4
, 8
, 0
))
276 # define V8_HAS_CXX11_STATIC_ASSERT (V8_GNUC_PREREQ(4
, 3
, 0
))
280 #if defined(_MSC_VER)
281 # define V8_CC_MSVC 1
282 # define V8_HAS___ALIGNOF 1
284 # define V8_HAS_DECLSPEC_ALIGN 1
285 # define V8_HAS_DECLSPEC_DEPRECATED 1
286 # define V8_HAS_DECLSPEC_NOINLINE 1
287 # define V8_HAS_DECLSPEC_SELECTANY 1
289 # define V8_HAS___FORCEINLINE 1
300 #if !defined(DEBUG) && V8_HAS_ATTRIBUTE_ALWAYS_INLINE
301 # define V8_INLINE inline __attribute__((always_inline))
302 #elif !defined(DEBUG) && V8_HAS___FORCEINLINE
303 # define V8_INLINE __forceinline
305 # define V8_INLINE inline
313 #if !defined(DEBUG) && V8_HAS_ATTRIBUTE_NOINLINE
314 # define V8_NOINLINE __attribute__((noinline))
315 #elif !defined(DEBUG) && V8_HAS_DECLSPEC_NOINLINE
316 # define V8_NOINLINE __declspec(noinline)
323 #if defined(V8_DEPRECATION_WARNINGS) && V8_HAS_ATTRIBUTE_DEPRECATED_MESSAGE
324 #define V8_DEPRECATED(message, declarator)
325 declarator __attribute__((deprecated(message)))
326 #elif defined(V8_DEPRECATION_WARNINGS) && V8_HAS_ATTRIBUTE_DEPRECATED
327 #define V8_DEPRECATED(message, declarator)
328 declarator __attribute__((deprecated))
329 #elif defined(V8_DEPRECATION_WARNINGS) && V8_HAS_DECLSPEC_DEPRECATED
330 #define V8_DEPRECATED(message, declarator) __declspec(deprecated) declarator
332 #define V8_DEPRECATED(message, declarator) declarator
337 #if defined(V8_IMMINENT_DEPRECATION_WARNINGS) &&
338 V8_HAS_ATTRIBUTE_DEPRECATED_MESSAGE
339 #define V8_DEPRECATE_SOON(message, declarator)
340 declarator __attribute__((deprecated(message)))
341 #elif defined(V8_IMMINENT_DEPRECATION_WARNINGS) && V8_HAS_ATTRIBUTE_DEPRECATED
342 #define V8_DEPRECATE_SOON(message, declarator)
343 declarator __attribute__((deprecated))
344 #elif defined(V8_IMMINENT_DEPRECATION_WARNINGS) && V8_HAS_DECLSPEC_DEPRECATED
345 #define V8_DEPRECATE_SOON(message, declarator) __declspec(deprecated) declarator
347 #define V8_DEPRECATE_SOON(message, declarator) declarator
352 #if V8_HAS_BUILTIN_EXPECT
353 # define V8_UNLIKELY(condition) (__builtin_expect(!!(condition), 0
))
354 # define V8_LIKELY(condition) (__builtin_expect(!!(condition), 1
))
356 # define V8_UNLIKELY(condition) (condition)
357 # define V8_LIKELY(condition) (condition)
365 #if V8_HAS_CXX11_ALIGNAS
366 # define V8_ALIGNED(n) alignas(n)
367 #elif V8_HAS_ATTRIBUTE_ALIGNED
368 # define V8_ALIGNED(n) __attribute__((aligned(n)))
369 #elif V8_HAS_DECLSPEC_ALIGN
370 # define V8_ALIGNED(n) __declspec(align(n))
372 # define V8_ALIGNED(n)
385 #if V8_HAS_CXX11_ALIGNAS
386 # define V8_ALIGNAS(type, alignment) alignas(type)
387 #elif V8_HAS___ALIGNOF__ && V8_HAS_ATTRIBUTE_ALIGNED
388 # define V8_ALIGNAS(type, alignment) __attribute__((aligned(__alignof__(type))))
390 # define V8_ALIGNAS(type, alignment) V8_ALIGNED(alignment)
399 #if V8_HAS_CXX11_ALIGNOF
400 # define V8_ALIGNOF(type) alignof(type)
401 #elif V8_HAS___ALIGNOF
402 # define V8_ALIGNOF(type) __alignof(type)
403 #elif V8_HAS___ALIGNOF__
404 # define V8_ALIGNOF(type) __alignof__(type)
409 namespace v8 {
template <
typename T>
class AlignOfHelper {
char c; T t; }; }
410 # define V8_ALIGNOF(type) (sizeof(::v8::AlignOfHelper<type>) - sizeof(type))
416 #if V8_HAS_ATTRIBUTE_WARN_UNUSED_RESULT
417 #define V8_WARN_UNUSED_RESULT __attribute__((warn_unused_result))
419 #define V8_WARN_UNUSED_RESULT