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platform-tls-mac.h
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27 
28 #ifndef V8_PLATFORM_TLS_MAC_H_
29 #define V8_PLATFORM_TLS_MAC_H_
30 
31 #include "globals.h"
32 
33 namespace v8 {
34 namespace internal {
35 
36 #if defined(V8_HOST_ARCH_IA32) || defined(V8_HOST_ARCH_X64)
37 
38 #define V8_FAST_TLS_SUPPORTED 1
39 
40 extern intptr_t kMacTlsBaseOffset;
41 
42 INLINE(intptr_t InternalGetExistingThreadLocal(intptr_t index));
43 
44 inline intptr_t InternalGetExistingThreadLocal(intptr_t index) {
45  intptr_t result;
46 #if defined(V8_HOST_ARCH_IA32)
47  asm("movl %%gs:(%1,%2,4), %0;"
48  :"=r"(result) // Output must be a writable register.
49  :"r"(kMacTlsBaseOffset), "r"(index));
50 #else
51  asm("movq %%gs:(%1,%2,8), %0;"
52  :"=r"(result)
53  :"r"(kMacTlsBaseOffset), "r"(index));
54 #endif
55  return result;
56 }
57 
58 #endif
59 
60 } } // namespace v8::internal
61 
62 #endif // V8_PLATFORM_TLS_MAC_H_
INLINE(static HeapObject *EnsureDoubleAligned(Heap *heap, HeapObject *object, int size))