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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. |
| 11 // The build system then uses the implementation for the target platform. | 11 // The build system then uses the implementation for the target platform. |
| 12 // | 12 // |
| 13 // This design has been chosen because it is simple and fast. Alternatively, | 13 // This design has been chosen because it is simple and fast. Alternatively, |
| 14 // the platform dependent classes could have been implemented using abstract | 14 // the platform dependent classes could have been implemented using abstract |
| 15 // superclasses with virtual methods and having specializations for each | 15 // superclasses with virtual methods and having specializations for each |
| 16 // platform. This design was rejected because it was more complicated and | 16 // platform. This design was rejected because it was more complicated and |
| 17 // slower. It would require factory methods for selecting the right | 17 // slower. It would require factory methods for selecting the right |
| 18 // implementation and the overhead of virtual methods for performance | 18 // implementation and the overhead of virtual methods for performance |
| 19 // sensitive like mutex locking/unlocking. | 19 // sensitive like mutex locking/unlocking. |
| 20 | 20 |
| 21 #ifndef V8_PLATFORM_H_ | 21 #ifndef V8_PLATFORM_H_ |
| 22 #define V8_PLATFORM_H_ | 22 #define V8_PLATFORM_H_ |
| 23 | 23 |
| 24 #include <stdarg.h> | 24 #include <stdarg.h> |
| 25 | 25 |
| 26 #include "platform/mutex.h" | 26 #include "src/platform/mutex.h" |
| 27 #include "platform/semaphore.h" | 27 #include "src/platform/semaphore.h" |
| 28 #include "globals.h" | 28 #include "src/globals.h" |
| 29 #include "vector.h" | 29 #include "src/vector.h" |
| 30 | 30 |
| 31 #ifdef __sun | 31 #ifdef __sun |
| 32 # ifndef signbit | 32 # ifndef signbit |
| 33 namespace std { | 33 namespace std { |
| 34 int signbit(double x); | 34 int signbit(double x); |
| 35 } | 35 } |
| 36 # endif | 36 # endif |
| 37 #endif | 37 #endif |
| 38 | 38 |
| 39 #if V8_OS_QNX | 39 #if V8_OS_QNX |
| 40 #include "qnx-math.h" | 40 #include "src/qnx-math.h" |
| 41 #endif | 41 #endif |
| 42 | 42 |
| 43 // Microsoft Visual C++ specific stuff. | 43 // Microsoft Visual C++ specific stuff. |
| 44 #if V8_LIBC_MSVCRT | 44 #if V8_LIBC_MSVCRT |
| 45 | 45 |
| 46 #include "win32-headers.h" | 46 #include "src/win32-headers.h" |
| 47 #include "win32-math.h" | 47 #include "src/win32-math.h" |
| 48 | 48 |
| 49 int strncasecmp(const char* s1, const char* s2, int n); | 49 int strncasecmp(const char* s1, const char* s2, int n); |
| 50 | 50 |
| 51 // Visual C++ 2013 and higher implement this function. | 51 // Visual C++ 2013 and higher implement this function. |
| 52 #if (_MSC_VER < 1800) | 52 #if (_MSC_VER < 1800) |
| 53 inline int lrint(double flt) { | 53 inline int lrint(double flt) { |
| 54 int intgr; | 54 int intgr; |
| 55 #if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87 | 55 #if V8_TARGET_ARCH_IA32 || V8_TARGET_ARCH_X87 |
| 56 __asm { | 56 __asm { |
| 57 fld flt | 57 fld flt |
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| 503 char name_[kMaxThreadNameLength]; | 503 char name_[kMaxThreadNameLength]; |
| 504 int stack_size_; | 504 int stack_size_; |
| 505 Semaphore* start_semaphore_; | 505 Semaphore* start_semaphore_; |
| 506 | 506 |
| 507 DISALLOW_COPY_AND_ASSIGN(Thread); | 507 DISALLOW_COPY_AND_ASSIGN(Thread); |
| 508 }; | 508 }; |
| 509 | 509 |
| 510 } } // namespace v8::internal | 510 } } // namespace v8::internal |
| 511 | 511 |
| 512 #endif // V8_PLATFORM_H_ | 512 #endif // V8_PLATFORM_H_ |
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