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1 // Copyright 2012 the V8 project authors. All rights reserved. | 1 // Copyright 2012 the V8 project authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 // This module contains the platform-specific code. This make the rest of the | 5 // This module contains the platform-specific code. This make the rest of the |
6 // code less dependent on operating system, compilers and runtime libraries. | 6 // code less dependent on operating system, compilers and runtime libraries. |
7 // This module does specifically not deal with differences between different | 7 // This module does specifically not deal with differences between different |
8 // processor architecture. | 8 // processor architecture. |
9 // The platform classes have the same definition for all platforms. The | 9 // The platform classes have the same definition for all platforms. The |
10 // implementation for a particular platform is put in platform_<os>.cc. | 10 // implementation for a particular platform is put in platform_<os>.cc. |
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66 #endif | 66 #endif |
67 return intgr; | 67 return intgr; |
68 } | 68 } |
69 #endif // _MSC_VER < 1800 | 69 #endif // _MSC_VER < 1800 |
70 | 70 |
71 #endif // V8_LIBC_MSVCRT | 71 #endif // V8_LIBC_MSVCRT |
72 | 72 |
73 namespace v8 { | 73 namespace v8 { |
74 namespace internal { | 74 namespace internal { |
75 | 75 |
76 double modulo(double x, double y); | |
77 | |
78 // Custom implementation of math functions. | |
79 double fast_exp(double input); | |
80 double fast_sqrt(double input); | |
81 // The custom exp implementation needs 16KB of lookup data; initialize it | |
82 // on demand. | |
83 void lazily_initialize_fast_exp(); | |
84 | |
85 | |
86 // ---------------------------------------------------------------------------- | 76 // ---------------------------------------------------------------------------- |
87 // Fast TLS support | 77 // Fast TLS support |
88 | 78 |
89 #ifndef V8_NO_FAST_TLS | 79 #ifndef V8_NO_FAST_TLS |
90 | 80 |
91 #if defined(_MSC_VER) && V8_HOST_ARCH_IA32 | 81 #if defined(_MSC_VER) && V8_HOST_ARCH_IA32 |
92 | 82 |
93 #define V8_FAST_TLS_SUPPORTED 1 | 83 #define V8_FAST_TLS_SUPPORTED 1 |
94 | 84 |
95 INLINE(intptr_t InternalGetExistingThreadLocal(intptr_t index)); | 85 INLINE(intptr_t InternalGetExistingThreadLocal(intptr_t index)); |
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595 char name_[kMaxThreadNameLength]; | 585 char name_[kMaxThreadNameLength]; |
596 int stack_size_; | 586 int stack_size_; |
597 Semaphore* start_semaphore_; | 587 Semaphore* start_semaphore_; |
598 | 588 |
599 DISALLOW_COPY_AND_ASSIGN(Thread); | 589 DISALLOW_COPY_AND_ASSIGN(Thread); |
600 }; | 590 }; |
601 | 591 |
602 } } // namespace v8::internal | 592 } } // namespace v8::internal |
603 | 593 |
604 #endif // V8_PLATFORM_H_ | 594 #endif // V8_PLATFORM_H_ |
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