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1 // Copyright 2013 the V8 project authors. All rights reserved. | 1 // Copyright 2013 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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45 | 45 |
46 // TickSample captures the information collected for each sample. | 46 // TickSample captures the information collected for each sample. |
47 struct TickSample { | 47 struct TickSample { |
48 TickSample() | 48 TickSample() |
49 : state(OTHER), | 49 : state(OTHER), |
50 pc(NULL), | 50 pc(NULL), |
51 sp(NULL), | 51 sp(NULL), |
52 fp(NULL), | 52 fp(NULL), |
53 external_callback(NULL), | 53 external_callback(NULL), |
54 frames_count(0) {} | 54 frames_count(0) {} |
| 55 void Trace(Isolate* isolate); |
55 StateTag state; // The state of the VM. | 56 StateTag state; // The state of the VM. |
56 Address pc; // Instruction pointer. | 57 Address pc; // Instruction pointer. |
57 Address sp; // Stack pointer. | 58 Address sp; // Stack pointer. |
58 Address fp; // Frame pointer. | 59 Address fp; // Frame pointer. |
59 Address external_callback; | 60 Address external_callback; |
60 static const int kMaxFramesCount = 64; | 61 static const int kMaxFramesCount = 64; |
61 Address stack[kMaxFramesCount]; // Call stack. | 62 Address stack[kMaxFramesCount]; // Call stack. |
62 int frames_count : 8; // Number of captured frames. | 63 int frames_count : 8; // Number of captured frames. |
63 }; | 64 }; |
64 | 65 |
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110 Atomic32 active_; | 111 Atomic32 active_; |
111 PlatformData* data_; // Platform specific data. | 112 PlatformData* data_; // Platform specific data. |
112 int samples_taken_; // Counts stack samples taken. | 113 int samples_taken_; // Counts stack samples taken. |
113 DISALLOW_IMPLICIT_CONSTRUCTORS(Sampler); | 114 DISALLOW_IMPLICIT_CONSTRUCTORS(Sampler); |
114 }; | 115 }; |
115 | 116 |
116 | 117 |
117 } } // namespace v8::internal | 118 } } // namespace v8::internal |
118 | 119 |
119 #endif // V8_SAMPLER_H_ | 120 #endif // V8_SAMPLER_H_ |
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