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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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272 }; | 272 }; |
273 | 273 |
274 | 274 |
275 // Class that extracts stack trace, used for profiling | 275 // Class that extracts stack trace, used for profiling |
276 class StackTracer BASE_EMBEDDED { | 276 class StackTracer BASE_EMBEDDED { |
277 public: | 277 public: |
278 explicit StackTracer(unsigned int low_stack_bound) | 278 explicit StackTracer(unsigned int low_stack_bound) |
279 : low_stack_bound_(low_stack_bound) { } | 279 : low_stack_bound_(low_stack_bound) { } |
280 void Trace(TickSample* sample); | 280 void Trace(TickSample* sample); |
281 private: | 281 private: |
| 282 // Maximum number of stack frames to capture |
| 283 static const int kMaxStackFrames = 5; |
| 284 |
282 unsigned int low_stack_bound_; | 285 unsigned int low_stack_bound_; |
283 }; | 286 }; |
284 | 287 |
285 | 288 |
286 } } // namespace v8::internal | 289 } } // namespace v8::internal |
287 | 290 |
288 #endif // V8_LOG_H_ | 291 #endif // V8_LOG_H_ |
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