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1 // Copyright 2006-2008 the V8 project authors. All rights reserved. | 1 // Copyright 2006-2008 the V8 project authors. All rights reserved. |
2 // Redistribution and use in source and binary forms, with or without | 2 // Redistribution and use in source and binary forms, with or without |
3 // modification, are permitted provided that the following conditions are | 3 // modification, are permitted provided that the following conditions are |
4 // met: | 4 // met: |
5 // | 5 // |
6 // * Redistributions of source code must retain the above copyright | 6 // * Redistributions of source code must retain the above copyright |
7 // notice, this list of conditions and the following disclaimer. | 7 // notice, this list of conditions and the following disclaimer. |
8 // * Redistributions in binary form must reproduce the above | 8 // * Redistributions in binary form must reproduce the above |
9 // copyright notice, this list of conditions and the following | 9 // copyright notice, this list of conditions and the following |
10 // disclaimer in the documentation and/or other materials provided | 10 // disclaimer in the documentation and/or other materials provided |
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227 } | 227 } |
228 | 228 |
229 | 229 |
230 PosixMemoryMappedFile::~PosixMemoryMappedFile() { | 230 PosixMemoryMappedFile::~PosixMemoryMappedFile() { |
231 if (memory_) munmap(memory_, size_); | 231 if (memory_) munmap(memory_, size_); |
232 fclose(file_); | 232 fclose(file_); |
233 } | 233 } |
234 | 234 |
235 | 235 |
236 void OS::LogSharedLibraryAddresses() { | 236 void OS::LogSharedLibraryAddresses() { |
237 #ifdef ENABLE_LOGGING_AND_PROFILING | |
238 unsigned int images_count = _dyld_image_count(); | 237 unsigned int images_count = _dyld_image_count(); |
239 for (unsigned int i = 0; i < images_count; ++i) { | 238 for (unsigned int i = 0; i < images_count; ++i) { |
240 const mach_header* header = _dyld_get_image_header(i); | 239 const mach_header* header = _dyld_get_image_header(i); |
241 if (header == NULL) continue; | 240 if (header == NULL) continue; |
242 #if V8_HOST_ARCH_X64 | 241 #if V8_HOST_ARCH_X64 |
243 uint64_t size; | 242 uint64_t size; |
244 char* code_ptr = getsectdatafromheader_64( | 243 char* code_ptr = getsectdatafromheader_64( |
245 reinterpret_cast<const mach_header_64*>(header), | 244 reinterpret_cast<const mach_header_64*>(header), |
246 SEG_TEXT, | 245 SEG_TEXT, |
247 SECT_TEXT, | 246 SECT_TEXT, |
248 &size); | 247 &size); |
249 #else | 248 #else |
250 unsigned int size; | 249 unsigned int size; |
251 char* code_ptr = getsectdatafromheader(header, SEG_TEXT, SECT_TEXT, &size); | 250 char* code_ptr = getsectdatafromheader(header, SEG_TEXT, SECT_TEXT, &size); |
252 #endif | 251 #endif |
253 if (code_ptr == NULL) continue; | 252 if (code_ptr == NULL) continue; |
254 const uintptr_t slide = _dyld_get_image_vmaddr_slide(i); | 253 const uintptr_t slide = _dyld_get_image_vmaddr_slide(i); |
255 const uintptr_t start = reinterpret_cast<uintptr_t>(code_ptr) + slide; | 254 const uintptr_t start = reinterpret_cast<uintptr_t>(code_ptr) + slide; |
256 LOG(Isolate::Current(), | 255 LOG(Isolate::Current(), |
257 SharedLibraryEvent(_dyld_get_image_name(i), start, start + size)); | 256 SharedLibraryEvent(_dyld_get_image_name(i), start, start + size)); |
258 } | 257 } |
259 #endif // ENABLE_LOGGING_AND_PROFILING | |
260 } | 258 } |
261 | 259 |
262 | 260 |
263 void OS::SignalCodeMovingGC() { | 261 void OS::SignalCodeMovingGC() { |
264 } | 262 } |
265 | 263 |
266 | 264 |
267 uint64_t OS::CpuFeaturesImpliedByPlatform() { | 265 uint64_t OS::CpuFeaturesImpliedByPlatform() { |
268 // MacOSX requires all these to install so we can assume they are present. | 266 // MacOSX requires all these to install so we can assume they are present. |
269 // These constants are defined by the CPUid instructions. | 267 // These constants are defined by the CPUid instructions. |
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623 ts.tv_nsec = (timeout % 1000000) * 1000; | 621 ts.tv_nsec = (timeout % 1000000) * 1000; |
624 return semaphore_timedwait(semaphore_, ts) != KERN_OPERATION_TIMED_OUT; | 622 return semaphore_timedwait(semaphore_, ts) != KERN_OPERATION_TIMED_OUT; |
625 } | 623 } |
626 | 624 |
627 | 625 |
628 Semaphore* OS::CreateSemaphore(int count) { | 626 Semaphore* OS::CreateSemaphore(int count) { |
629 return new MacOSSemaphore(count); | 627 return new MacOSSemaphore(count); |
630 } | 628 } |
631 | 629 |
632 | 630 |
633 #ifdef ENABLE_LOGGING_AND_PROFILING | |
634 | |
635 class Sampler::PlatformData : public Malloced { | 631 class Sampler::PlatformData : public Malloced { |
636 public: | 632 public: |
637 PlatformData() : profiled_thread_(mach_thread_self()) {} | 633 PlatformData() : profiled_thread_(mach_thread_self()) {} |
638 | 634 |
639 ~PlatformData() { | 635 ~PlatformData() { |
640 // Deallocate Mach port for thread. | 636 // Deallocate Mach port for thread. |
641 mach_port_deallocate(mach_task_self(), profiled_thread_); | 637 mach_port_deallocate(mach_task_self(), profiled_thread_); |
642 } | 638 } |
643 | 639 |
644 thread_act_t profiled_thread() { return profiled_thread_; } | 640 thread_act_t profiled_thread() { return profiled_thread_; } |
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800 SamplerThread::AddActiveSampler(this); | 796 SamplerThread::AddActiveSampler(this); |
801 } | 797 } |
802 | 798 |
803 | 799 |
804 void Sampler::Stop() { | 800 void Sampler::Stop() { |
805 ASSERT(IsActive()); | 801 ASSERT(IsActive()); |
806 SamplerThread::RemoveActiveSampler(this); | 802 SamplerThread::RemoveActiveSampler(this); |
807 SetActive(false); | 803 SetActive(false); |
808 } | 804 } |
809 | 805 |
810 #endif // ENABLE_LOGGING_AND_PROFILING | |
811 | 806 |
812 } } // namespace v8::internal | 807 } } // namespace v8::internal |
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