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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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261 // occuring in shared libraries will not be properly accounted for. | 261 // occuring in shared libraries will not be properly accounted for. |
262 static void LogSharedLibraryAddresses(Isolate* isolate); | 262 static void LogSharedLibraryAddresses(Isolate* isolate); |
263 | 263 |
264 // Support for the profiler. Notifies the external profiling | 264 // Support for the profiler. Notifies the external profiling |
265 // process that a code moving garbage collection starts. Can do | 265 // process that a code moving garbage collection starts. Can do |
266 // nothing, in which case the code objects must not move (e.g., by | 266 // nothing, in which case the code objects must not move (e.g., by |
267 // using --never-compact) if accurate profiling is desired. | 267 // using --never-compact) if accurate profiling is desired. |
268 static void SignalCodeMovingGC(); | 268 static void SignalCodeMovingGC(); |
269 | 269 |
270 // The return value indicates the CPU features we are sure of because of the | 270 // The return value indicates the CPU features we are sure of because of the |
271 // OS. For example MacOSX doesn't run on any x86 CPUs that don't have SSE2 | 271 // OS. For example MacOSX doesn't run on any x86 CPUs that don't have CMOV |
272 // instructions. | 272 // instructions. |
273 // This is a little messy because the interpretation is subject to the cross | 273 // This is a little messy because the interpretation is subject to the cross |
274 // of the CPU and the OS. The bits in the answer correspond to the bit | 274 // of the CPU and the OS. The bits in the answer correspond to the bit |
275 // positions indicated by the members of the CpuFeature enum from globals.h | 275 // positions indicated by the members of the CpuFeature enum from globals.h |
276 static uint64_t CpuFeaturesImpliedByPlatform(); | 276 static uint64_t CpuFeaturesImpliedByPlatform(); |
277 | 277 |
278 // The total amount of physical memory available on the current system. | 278 // The total amount of physical memory available on the current system. |
279 static uint64_t TotalPhysicalMemory(); | 279 static uint64_t TotalPhysicalMemory(); |
280 | 280 |
281 // Maximum size of the virtual memory. 0 means there is no artificial | 281 // Maximum size of the virtual memory. 0 means there is no artificial |
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585 char name_[kMaxThreadNameLength]; | 585 char name_[kMaxThreadNameLength]; |
586 int stack_size_; | 586 int stack_size_; |
587 Semaphore* start_semaphore_; | 587 Semaphore* start_semaphore_; |
588 | 588 |
589 DISALLOW_COPY_AND_ASSIGN(Thread); | 589 DISALLOW_COPY_AND_ASSIGN(Thread); |
590 }; | 590 }; |
591 | 591 |
592 } } // namespace v8::internal | 592 } } // namespace v8::internal |
593 | 593 |
594 #endif // V8_PLATFORM_H_ | 594 #endif // V8_PLATFORM_H_ |
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