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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 // 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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94 static bool WaitForSomeIsolateToEnterJS(); | 94 static bool WaitForSomeIsolateToEnterJS(); |
95 | 95 |
96 // Stops the runtime profiler thread when profiling support is being | 96 // Stops the runtime profiler thread when profiling support is being |
97 // turned off. | 97 // turned off. |
98 static void StopRuntimeProfilerThreadBeforeShutdown(Thread* thread); | 98 static void StopRuntimeProfilerThreadBeforeShutdown(Thread* thread); |
99 | 99 |
100 void UpdateSamplesAfterScavenge(); | 100 void UpdateSamplesAfterScavenge(); |
101 void RemoveDeadSamples(); | 101 void RemoveDeadSamples(); |
102 void UpdateSamplesAfterCompact(ObjectVisitor* visitor); | 102 void UpdateSamplesAfterCompact(ObjectVisitor* visitor); |
103 | 103 |
| 104 void AttemptOnStackReplacement(JSFunction* function); |
| 105 |
104 private: | 106 private: |
105 static const int kSamplerWindowSize = 16; | 107 static const int kSamplerWindowSize = 16; |
106 | 108 |
107 static void HandleWakeUp(Isolate* isolate); | 109 static void HandleWakeUp(Isolate* isolate); |
108 | 110 |
109 void Optimize(JSFunction* function, const char* reason); | 111 void Optimize(JSFunction* function, const char* reason); |
110 | 112 |
111 void AttemptOnStackReplacement(JSFunction* function); | |
112 | |
113 void ClearSampleBuffer(); | 113 void ClearSampleBuffer(); |
114 | 114 |
115 void ClearSampleBufferNewSpaceEntries(); | 115 void ClearSampleBufferNewSpaceEntries(); |
116 | 116 |
117 int LookupSample(JSFunction* function); | 117 int LookupSample(JSFunction* function); |
118 | 118 |
119 void AddSample(JSFunction* function, int weight); | 119 void AddSample(JSFunction* function, int weight); |
120 | 120 |
121 Isolate* isolate_; | 121 Isolate* isolate_; |
122 | 122 |
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179 | 179 |
180 void RuntimeProfiler::IsolateExitedJS(Isolate* isolate) { | 180 void RuntimeProfiler::IsolateExitedJS(Isolate* isolate) { |
181 Atomic32 new_state = NoBarrier_AtomicIncrement(&state_, -1); | 181 Atomic32 new_state = NoBarrier_AtomicIncrement(&state_, -1); |
182 ASSERT(new_state >= 0); | 182 ASSERT(new_state >= 0); |
183 USE(new_state); | 183 USE(new_state); |
184 } | 184 } |
185 | 185 |
186 } } // namespace v8::internal | 186 } } // namespace v8::internal |
187 | 187 |
188 #endif // V8_RUNTIME_PROFILER_H_ | 188 #endif // V8_RUNTIME_PROFILER_H_ |
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