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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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