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1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file | 1 // Copyright (c) 2013, the Dart project authors. Please see the AUTHORS file |
2 // for details. All rights reserved. Use of this source code is governed by a | 2 // for details. All rights reserved. Use of this source code is governed by a |
3 // BSD-style license that can be found in the LICENSE file. | 3 // BSD-style license that can be found in the LICENSE file. |
4 | 4 |
5 #ifndef RUNTIME_VM_PROFILER_H_ | 5 #ifndef RUNTIME_VM_PROFILER_H_ |
6 #define RUNTIME_VM_PROFILER_H_ | 6 #define RUNTIME_VM_PROFILER_H_ |
7 | 7 |
8 #include "vm/allocation.h" | 8 #include "vm/allocation.h" |
9 #include "vm/bitfield.h" | 9 #include "vm/bitfield.h" |
10 #include "vm/code_observers.h" | 10 #include "vm/code_observers.h" |
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45 | 45 |
46 | 46 |
47 class Profiler : public AllStatic { | 47 class Profiler : public AllStatic { |
48 public: | 48 public: |
49 static void InitOnce(); | 49 static void InitOnce(); |
50 static void Shutdown(); | 50 static void Shutdown(); |
51 | 51 |
52 static void SetSampleDepth(intptr_t depth); | 52 static void SetSampleDepth(intptr_t depth); |
53 static void SetSamplePeriod(intptr_t period); | 53 static void SetSamplePeriod(intptr_t period); |
54 | 54 |
55 static SampleBuffer* sample_buffer() { | 55 static SampleBuffer* sample_buffer() { return sample_buffer_; } |
56 return sample_buffer_; | |
57 } | |
58 | 56 |
59 static void DumpStackTrace(bool native_stack_trace = true); | 57 static void DumpStackTrace(bool native_stack_trace = true); |
60 | 58 |
61 static void SampleAllocation(Thread* thread, intptr_t cid); | 59 static void SampleAllocation(Thread* thread, intptr_t cid); |
62 | 60 |
63 // SampleThread is called from inside the signal handler and hence it is very | 61 // SampleThread is called from inside the signal handler and hence it is very |
64 // critical that the implementation of SampleThread does not do any of the | 62 // critical that the implementation of SampleThread does not do any of the |
65 // following: | 63 // following: |
66 // * Accessing TLS -- Because on Windows the callback will be running in a | 64 // * Accessing TLS -- Because on Windows the callback will be running in a |
67 // different thread. | 65 // different thread. |
68 // * Allocating memory -- Because this takes locks which may already be | 66 // * Allocating memory -- Because this takes locks which may already be |
69 // held, resulting in a dead lock. | 67 // held, resulting in a dead lock. |
70 // * Taking a lock -- See above. | 68 // * Taking a lock -- See above. |
71 static void SampleThread(Thread* thread, | 69 static void SampleThread(Thread* thread, const InterruptedThreadState& state); |
72 const InterruptedThreadState& state); | |
73 | 70 |
74 static ProfilerCounters counters() { | 71 static ProfilerCounters counters() { |
75 // Copies the counter values. | 72 // Copies the counter values. |
76 return counters_; | 73 return counters_; |
77 } | 74 } |
78 | 75 |
79 private: | 76 private: |
80 // Does not walk the thread's stack. | 77 // Does not walk the thread's stack. |
81 static void SampleThreadSingleFrame(Thread* thread, uintptr_t pc); | 78 static void SampleThreadSingleFrame(Thread* thread, uintptr_t pc); |
82 static bool initialized_; | 79 static bool initialized_; |
83 | 80 |
84 static SampleBuffer* sample_buffer_; | 81 static SampleBuffer* sample_buffer_; |
85 | 82 |
86 static ProfilerCounters counters_; | 83 static ProfilerCounters counters_; |
87 | 84 |
88 friend class Thread; | 85 friend class Thread; |
89 }; | 86 }; |
90 | 87 |
91 | 88 |
92 class SampleVisitor : public ValueObject { | 89 class SampleVisitor : public ValueObject { |
93 public: | 90 public: |
94 explicit SampleVisitor(Isolate* isolate) : isolate_(isolate), visited_(0) { } | 91 explicit SampleVisitor(Isolate* isolate) : isolate_(isolate), visited_(0) {} |
95 virtual ~SampleVisitor() {} | 92 virtual ~SampleVisitor() {} |
96 | 93 |
97 virtual void VisitSample(Sample* sample) = 0; | 94 virtual void VisitSample(Sample* sample) = 0; |
98 | 95 |
99 intptr_t visited() const { | 96 intptr_t visited() const { return visited_; } |
100 return visited_; | |
101 } | |
102 | 97 |
103 void IncrementVisited() { | 98 void IncrementVisited() { visited_++; } |
104 visited_++; | |
105 } | |
106 | 99 |
107 Isolate* isolate() const { | 100 Isolate* isolate() const { return isolate_; } |
108 return isolate_; | |
109 } | |
110 | 101 |
111 private: | 102 private: |
112 Isolate* isolate_; | 103 Isolate* isolate_; |
113 intptr_t visited_; | 104 intptr_t visited_; |
114 | 105 |
115 DISALLOW_IMPLICIT_CONSTRUCTORS(SampleVisitor); | 106 DISALLOW_IMPLICIT_CONSTRUCTORS(SampleVisitor); |
116 }; | 107 }; |
117 | 108 |
118 | 109 |
119 class SampleFilter : public ValueObject { | 110 class SampleFilter : public ValueObject { |
120 public: | 111 public: |
121 SampleFilter(Isolate* isolate, | 112 SampleFilter(Isolate* isolate, |
122 intptr_t thread_task_mask, | 113 intptr_t thread_task_mask, |
123 int64_t time_origin_micros, | 114 int64_t time_origin_micros, |
124 int64_t time_extent_micros) | 115 int64_t time_extent_micros) |
125 : isolate_(isolate), | 116 : isolate_(isolate), |
126 thread_task_mask_(thread_task_mask), | 117 thread_task_mask_(thread_task_mask), |
127 time_origin_micros_(time_origin_micros), | 118 time_origin_micros_(time_origin_micros), |
128 time_extent_micros_(time_extent_micros) { | 119 time_extent_micros_(time_extent_micros) { |
129 ASSERT(thread_task_mask != 0); | 120 ASSERT(thread_task_mask != 0); |
130 ASSERT(time_origin_micros_ >= -1); | 121 ASSERT(time_origin_micros_ >= -1); |
131 ASSERT(time_extent_micros_ >= -1); | 122 ASSERT(time_extent_micros_ >= -1); |
132 } | 123 } |
133 virtual ~SampleFilter() { } | 124 virtual ~SampleFilter() {} |
134 | 125 |
135 // Override this function. | 126 // Override this function. |
136 // Return |true| if |sample| passes the filter. | 127 // Return |true| if |sample| passes the filter. |
137 virtual bool FilterSample(Sample* sample) { | 128 virtual bool FilterSample(Sample* sample) { return true; } |
138 return true; | |
139 } | |
140 | 129 |
141 Isolate* isolate() const { | 130 Isolate* isolate() const { return isolate_; } |
142 return isolate_; | |
143 } | |
144 | 131 |
145 // Returns |true| if |sample| passes the time filter. | 132 // Returns |true| if |sample| passes the time filter. |
146 bool TimeFilterSample(Sample* sample); | 133 bool TimeFilterSample(Sample* sample); |
147 | 134 |
148 // Returns |true| if |sample| passes the thread task filter. | 135 // Returns |true| if |sample| passes the thread task filter. |
149 bool TaskFilterSample(Sample* sample); | 136 bool TaskFilterSample(Sample* sample); |
150 | 137 |
151 private: | 138 private: |
152 Isolate* isolate_; | 139 Isolate* isolate_; |
153 intptr_t thread_task_mask_; | 140 intptr_t thread_task_mask_; |
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168 class Sample { | 155 class Sample { |
169 public: | 156 public: |
170 void Init(Isolate* isolate, int64_t timestamp, ThreadId tid) { | 157 void Init(Isolate* isolate, int64_t timestamp, ThreadId tid) { |
171 Clear(); | 158 Clear(); |
172 timestamp_ = timestamp; | 159 timestamp_ = timestamp; |
173 tid_ = tid; | 160 tid_ = tid; |
174 isolate_ = isolate; | 161 isolate_ = isolate; |
175 } | 162 } |
176 | 163 |
177 // Isolate sample was taken from. | 164 // Isolate sample was taken from. |
178 Isolate* isolate() const { | 165 Isolate* isolate() const { return isolate_; } |
179 return isolate_; | |
180 } | |
181 | 166 |
182 // Thread sample was taken on. | 167 // Thread sample was taken on. |
183 ThreadId tid() const { | 168 ThreadId tid() const { return tid_; } |
184 return tid_; | |
185 } | |
186 | 169 |
187 void Clear() { | 170 void Clear() { |
188 isolate_ = NULL; | 171 isolate_ = NULL; |
189 pc_marker_ = 0; | 172 pc_marker_ = 0; |
190 for (intptr_t i = 0; i < kStackBufferSizeInWords; i++) { | 173 for (intptr_t i = 0; i < kStackBufferSizeInWords; i++) { |
191 stack_buffer_[i] = 0; | 174 stack_buffer_[i] = 0; |
192 } | 175 } |
193 vm_tag_ = VMTag::kInvalidTagId; | 176 vm_tag_ = VMTag::kInvalidTagId; |
194 user_tag_ = UserTags::kDefaultUserTag; | 177 user_tag_ = UserTags::kDefaultUserTag; |
195 lr_ = 0; | 178 lr_ = 0; |
196 metadata_ = 0; | 179 metadata_ = 0; |
197 state_ = 0; | 180 state_ = 0; |
198 continuation_index_ = -1; | 181 continuation_index_ = -1; |
199 uword* pcs = GetPCArray(); | 182 uword* pcs = GetPCArray(); |
200 for (intptr_t i = 0; i < pcs_length_; i++) { | 183 for (intptr_t i = 0; i < pcs_length_; i++) { |
201 pcs[i] = 0; | 184 pcs[i] = 0; |
202 } | 185 } |
203 set_head_sample(true); | 186 set_head_sample(true); |
204 } | 187 } |
205 | 188 |
206 // Timestamp sample was taken at. | 189 // Timestamp sample was taken at. |
207 int64_t timestamp() const { | 190 int64_t timestamp() const { return timestamp_; } |
208 return timestamp_; | |
209 } | |
210 | 191 |
211 // Top most pc. | 192 // Top most pc. |
212 uword pc() const { | 193 uword pc() const { return At(0); } |
213 return At(0); | |
214 } | |
215 | 194 |
216 // Get stack trace entry. | 195 // Get stack trace entry. |
217 uword At(intptr_t i) const { | 196 uword At(intptr_t i) const { |
218 ASSERT(i >= 0); | 197 ASSERT(i >= 0); |
219 ASSERT(i < pcs_length_); | 198 ASSERT(i < pcs_length_); |
220 uword* pcs = GetPCArray(); | 199 uword* pcs = GetPCArray(); |
221 return pcs[i]; | 200 return pcs[i]; |
222 } | 201 } |
223 | 202 |
224 // Set stack trace entry. | 203 // Set stack trace entry. |
225 void SetAt(intptr_t i, uword pc) { | 204 void SetAt(intptr_t i, uword pc) { |
226 ASSERT(i >= 0); | 205 ASSERT(i >= 0); |
227 ASSERT(i < pcs_length_); | 206 ASSERT(i < pcs_length_); |
228 uword* pcs = GetPCArray(); | 207 uword* pcs = GetPCArray(); |
229 pcs[i] = pc; | 208 pcs[i] = pc; |
230 } | 209 } |
231 | 210 |
232 uword vm_tag() const { | 211 uword vm_tag() const { return vm_tag_; } |
233 return vm_tag_; | |
234 } | |
235 void set_vm_tag(uword tag) { | 212 void set_vm_tag(uword tag) { |
236 ASSERT(tag != VMTag::kInvalidTagId); | 213 ASSERT(tag != VMTag::kInvalidTagId); |
237 vm_tag_ = tag; | 214 vm_tag_ = tag; |
238 } | 215 } |
239 | 216 |
240 uword user_tag() const { | 217 uword user_tag() const { return user_tag_; } |
241 return user_tag_; | 218 void set_user_tag(uword tag) { user_tag_ = tag; } |
242 } | |
243 void set_user_tag(uword tag) { | |
244 user_tag_ = tag; | |
245 } | |
246 | 219 |
247 uword pc_marker() const { | 220 uword pc_marker() const { return pc_marker_; } |
248 return pc_marker_; | |
249 } | |
250 | 221 |
251 void set_pc_marker(uword pc_marker) { | 222 void set_pc_marker(uword pc_marker) { pc_marker_ = pc_marker; } |
252 pc_marker_ = pc_marker; | |
253 } | |
254 | 223 |
255 uword lr() const { | 224 uword lr() const { return lr_; } |
256 return lr_; | |
257 } | |
258 | 225 |
259 void set_lr(uword link_register) { | 226 void set_lr(uword link_register) { lr_ = link_register; } |
260 lr_ = link_register; | |
261 } | |
262 | 227 |
263 bool leaf_frame_is_dart() const { | 228 bool leaf_frame_is_dart() const { return LeafFrameIsDart::decode(state_); } |
264 return LeafFrameIsDart::decode(state_); | |
265 } | |
266 | 229 |
267 void set_leaf_frame_is_dart(bool leaf_frame_is_dart) { | 230 void set_leaf_frame_is_dart(bool leaf_frame_is_dart) { |
268 state_ = LeafFrameIsDart::update(leaf_frame_is_dart, state_); | 231 state_ = LeafFrameIsDart::update(leaf_frame_is_dart, state_); |
269 } | 232 } |
270 | 233 |
271 bool ignore_sample() const { | 234 bool ignore_sample() const { return IgnoreBit::decode(state_); } |
272 return IgnoreBit::decode(state_); | |
273 } | |
274 | 235 |
275 void set_ignore_sample(bool ignore_sample) { | 236 void set_ignore_sample(bool ignore_sample) { |
276 state_ = IgnoreBit::update(ignore_sample, state_); | 237 state_ = IgnoreBit::update(ignore_sample, state_); |
277 } | 238 } |
278 | 239 |
279 bool exit_frame_sample() const { | 240 bool exit_frame_sample() const { return ExitFrameBit::decode(state_); } |
280 return ExitFrameBit::decode(state_); | |
281 } | |
282 | 241 |
283 void set_exit_frame_sample(bool exit_frame_sample) { | 242 void set_exit_frame_sample(bool exit_frame_sample) { |
284 state_ = ExitFrameBit::update(exit_frame_sample, state_); | 243 state_ = ExitFrameBit::update(exit_frame_sample, state_); |
285 } | 244 } |
286 | 245 |
287 bool missing_frame_inserted() const { | 246 bool missing_frame_inserted() const { |
288 return MissingFrameInsertedBit::decode(state_); | 247 return MissingFrameInsertedBit::decode(state_); |
289 } | 248 } |
290 | 249 |
291 void set_missing_frame_inserted(bool missing_frame_inserted) { | 250 void set_missing_frame_inserted(bool missing_frame_inserted) { |
292 state_ = MissingFrameInsertedBit::update(missing_frame_inserted, state_); | 251 state_ = MissingFrameInsertedBit::update(missing_frame_inserted, state_); |
293 } | 252 } |
294 | 253 |
295 bool truncated_trace() const { | 254 bool truncated_trace() const { return TruncatedTraceBit::decode(state_); } |
296 return TruncatedTraceBit::decode(state_); | |
297 } | |
298 | 255 |
299 void set_truncated_trace(bool truncated_trace) { | 256 void set_truncated_trace(bool truncated_trace) { |
300 state_ = TruncatedTraceBit::update(truncated_trace, state_); | 257 state_ = TruncatedTraceBit::update(truncated_trace, state_); |
301 } | 258 } |
302 | 259 |
303 bool is_allocation_sample() const { | 260 bool is_allocation_sample() const { |
304 return ClassAllocationSampleBit::decode(state_); | 261 return ClassAllocationSampleBit::decode(state_); |
305 } | 262 } |
306 | 263 |
307 void set_is_allocation_sample(bool allocation_sample) { | 264 void set_is_allocation_sample(bool allocation_sample) { |
308 state_ = ClassAllocationSampleBit::update(allocation_sample, state_); | 265 state_ = ClassAllocationSampleBit::update(allocation_sample, state_); |
309 } | 266 } |
310 | 267 |
311 Thread::TaskKind thread_task() const { | 268 Thread::TaskKind thread_task() const { return ThreadTaskBit::decode(state_); } |
312 return ThreadTaskBit::decode(state_); | |
313 } | |
314 | 269 |
315 void set_thread_task(Thread::TaskKind task) { | 270 void set_thread_task(Thread::TaskKind task) { |
316 state_ = ThreadTaskBit::update(task, state_); | 271 state_ = ThreadTaskBit::update(task, state_); |
317 } | 272 } |
318 | 273 |
319 bool is_continuation_sample() const { | 274 bool is_continuation_sample() const { |
320 return ContinuationSampleBit::decode(state_); | 275 return ContinuationSampleBit::decode(state_); |
321 } | 276 } |
322 | 277 |
323 void SetContinuationIndex(intptr_t index) { | 278 void SetContinuationIndex(intptr_t index) { |
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335 | 290 |
336 intptr_t allocation_cid() const { | 291 intptr_t allocation_cid() const { |
337 ASSERT(is_allocation_sample()); | 292 ASSERT(is_allocation_sample()); |
338 return metadata_; | 293 return metadata_; |
339 } | 294 } |
340 | 295 |
341 void set_head_sample(bool head_sample) { | 296 void set_head_sample(bool head_sample) { |
342 state_ = HeadSampleBit::update(head_sample, state_); | 297 state_ = HeadSampleBit::update(head_sample, state_); |
343 } | 298 } |
344 | 299 |
345 bool head_sample() const { | 300 bool head_sample() const { return HeadSampleBit::decode(state_); } |
346 return HeadSampleBit::decode(state_); | |
347 } | |
348 | 301 |
349 void set_metadata(intptr_t metadata) { | 302 void set_metadata(intptr_t metadata) { metadata_ = metadata; } |
350 metadata_ = metadata; | |
351 } | |
352 | 303 |
353 void SetAllocationCid(intptr_t cid) { | 304 void SetAllocationCid(intptr_t cid) { |
354 set_is_allocation_sample(true); | 305 set_is_allocation_sample(true); |
355 set_metadata(cid); | 306 set_metadata(cid); |
356 } | 307 } |
357 | 308 |
358 static void InitOnce(); | 309 static void InitOnce(); |
359 | 310 |
360 static intptr_t instance_size() { | 311 static intptr_t instance_size() { return instance_size_; } |
361 return instance_size_; | |
362 } | |
363 | 312 |
364 uword* GetPCArray() const; | 313 uword* GetPCArray() const; |
365 | 314 |
366 static const int kStackBufferSizeInWords = 2; | 315 static const int kStackBufferSizeInWords = 2; |
367 uword* GetStackBuffer() { | 316 uword* GetStackBuffer() { return &stack_buffer_[0]; } |
368 return &stack_buffer_[0]; | |
369 } | |
370 | 317 |
371 private: | 318 private: |
372 static intptr_t instance_size_; | 319 static intptr_t instance_size_; |
373 static intptr_t pcs_length_; | 320 static intptr_t pcs_length_; |
374 enum StateBits { | 321 enum StateBits { |
375 kHeadSampleBit = 0, | 322 kHeadSampleBit = 0, |
376 kLeafFrameIsDartBit = 1, | 323 kLeafFrameIsDartBit = 1, |
377 kIgnoreBit = 2, | 324 kIgnoreBit = 2, |
378 kExitFrameBit = 3, | 325 kExitFrameBit = 3, |
379 kMissingFrameInsertedBit = 4, | 326 kMissingFrameInsertedBit = 4, |
380 kTruncatedTraceBit = 5, | 327 kTruncatedTraceBit = 5, |
381 kClassAllocationSampleBit = 6, | 328 kClassAllocationSampleBit = 6, |
382 kContinuationSampleBit = 7, | 329 kContinuationSampleBit = 7, |
383 kThreadTaskBit = 8, // 5 bits. | 330 kThreadTaskBit = 8, // 5 bits. |
384 kNextFreeBit = 13, | 331 kNextFreeBit = 13, |
385 }; | 332 }; |
386 class HeadSampleBit : public BitField<uword, bool, kHeadSampleBit, 1> {}; | 333 class HeadSampleBit : public BitField<uword, bool, kHeadSampleBit, 1> {}; |
387 class LeafFrameIsDart : | 334 class LeafFrameIsDart : public BitField<uword, bool, kLeafFrameIsDartBit, 1> { |
388 public BitField<uword, bool, kLeafFrameIsDartBit, 1> {}; | 335 }; |
389 class IgnoreBit : public BitField<uword, bool, kIgnoreBit, 1> {}; | 336 class IgnoreBit : public BitField<uword, bool, kIgnoreBit, 1> {}; |
390 class ExitFrameBit : public BitField<uword, bool, kExitFrameBit, 1> {}; | 337 class ExitFrameBit : public BitField<uword, bool, kExitFrameBit, 1> {}; |
391 class MissingFrameInsertedBit | 338 class MissingFrameInsertedBit |
392 : public BitField<uword, bool, kMissingFrameInsertedBit, 1> {}; | 339 : public BitField<uword, bool, kMissingFrameInsertedBit, 1> {}; |
393 class TruncatedTraceBit : | 340 class TruncatedTraceBit |
394 public BitField<uword, bool, kTruncatedTraceBit, 1> {}; | 341 : public BitField<uword, bool, kTruncatedTraceBit, 1> {}; |
395 class ClassAllocationSampleBit | 342 class ClassAllocationSampleBit |
396 : public BitField<uword, bool, kClassAllocationSampleBit, 1> {}; | 343 : public BitField<uword, bool, kClassAllocationSampleBit, 1> {}; |
397 class ContinuationSampleBit | 344 class ContinuationSampleBit |
398 : public BitField<uword, bool, kContinuationSampleBit, 1> {}; | 345 : public BitField<uword, bool, kContinuationSampleBit, 1> {}; |
399 class ThreadTaskBit | 346 class ThreadTaskBit |
400 : public BitField<uword, Thread::TaskKind, kThreadTaskBit, 5> {}; | 347 : public BitField<uword, Thread::TaskKind, kThreadTaskBit, 5> {}; |
401 | 348 |
402 int64_t timestamp_; | 349 int64_t timestamp_; |
403 ThreadId tid_; | 350 ThreadId tid_; |
404 Isolate* isolate_; | 351 Isolate* isolate_; |
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422 class CodeDescriptor : public ZoneAllocated { | 369 class CodeDescriptor : public ZoneAllocated { |
423 public: | 370 public: |
424 explicit CodeDescriptor(const Code& code); | 371 explicit CodeDescriptor(const Code& code); |
425 | 372 |
426 uword Start() const; | 373 uword Start() const; |
427 | 374 |
428 uword Size() const; | 375 uword Size() const; |
429 | 376 |
430 int64_t CompileTimestamp() const; | 377 int64_t CompileTimestamp() const; |
431 | 378 |
432 RawCode* code() const { | 379 RawCode* code() const { return code_.raw(); } |
433 return code_.raw(); | |
434 } | |
435 | 380 |
436 const char* Name() const { | 381 const char* Name() const { return code_.Name(); } |
437 return code_.Name(); | |
438 } | |
439 | 382 |
440 bool Contains(uword pc) const { | 383 bool Contains(uword pc) const { |
441 uword end = Start() + Size(); | 384 uword end = Start() + Size(); |
442 return (pc >= Start()) && (pc < end); | 385 return (pc >= Start()) && (pc < end); |
443 } | 386 } |
444 | 387 |
445 static int Compare(CodeDescriptor* const* a, | 388 static int Compare(CodeDescriptor* const* a, CodeDescriptor* const* b) { |
446 CodeDescriptor* const* b) { | |
447 ASSERT(a != NULL); | 389 ASSERT(a != NULL); |
448 ASSERT(b != NULL); | 390 ASSERT(b != NULL); |
449 | 391 |
450 uword a_start = (*a)->Start(); | 392 uword a_start = (*a)->Start(); |
451 uword b_start = (*b)->Start(); | 393 uword b_start = (*b)->Start(); |
452 | 394 |
453 if (a_start < b_start) { | 395 if (a_start < b_start) { |
454 return -1; | 396 return -1; |
455 } else if (a_start > b_start) { | 397 } else if (a_start > b_start) { |
456 return 1; | 398 return 1; |
457 } else { | 399 } else { |
458 return 0; | 400 return 0; |
459 } | 401 } |
460 } | 402 } |
461 | 403 |
462 private: | 404 private: |
463 const Code& code_; | 405 const Code& code_; |
464 | 406 |
465 DISALLOW_COPY_AND_ASSIGN(CodeDescriptor); | 407 DISALLOW_COPY_AND_ASSIGN(CodeDescriptor); |
466 }; | 408 }; |
467 | 409 |
468 | 410 |
469 // Fast lookup of Dart code objects. | 411 // Fast lookup of Dart code objects. |
470 class CodeLookupTable : public ZoneAllocated { | 412 class CodeLookupTable : public ZoneAllocated { |
471 public: | 413 public: |
472 explicit CodeLookupTable(Thread* thread); | 414 explicit CodeLookupTable(Thread* thread); |
473 | 415 |
474 intptr_t length() const { | 416 intptr_t length() const { return code_objects_.length(); } |
475 return code_objects_.length(); | |
476 } | |
477 | 417 |
478 const CodeDescriptor* At(intptr_t index) const { | 418 const CodeDescriptor* At(intptr_t index) const { |
479 return code_objects_.At(index); | 419 return code_objects_.At(index); |
480 } | 420 } |
481 | 421 |
482 const CodeDescriptor* FindCode(uword pc) const; | 422 const CodeDescriptor* FindCode(uword pc) const; |
483 | 423 |
484 private: | 424 private: |
485 void Build(Thread* thread); | 425 void Build(Thread* thread); |
486 | 426 |
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564 | 504 |
565 | 505 |
566 // A |ProcessedSample| is a combination of 1 (or more) |Sample|(s) that have | 506 // A |ProcessedSample| is a combination of 1 (or more) |Sample|(s) that have |
567 // been merged into a logical sample. The raw data may have been processed to | 507 // been merged into a logical sample. The raw data may have been processed to |
568 // improve the quality of the stack trace. | 508 // improve the quality of the stack trace. |
569 class ProcessedSample : public ZoneAllocated { | 509 class ProcessedSample : public ZoneAllocated { |
570 public: | 510 public: |
571 ProcessedSample(); | 511 ProcessedSample(); |
572 | 512 |
573 // Add |pc| to stack trace. | 513 // Add |pc| to stack trace. |
574 void Add(uword pc) { | 514 void Add(uword pc) { pcs_.Add(pc); } |
575 pcs_.Add(pc); | |
576 } | |
577 | 515 |
578 // Insert |pc| at |index|. | 516 // Insert |pc| at |index|. |
579 void InsertAt(intptr_t index, uword pc) { | 517 void InsertAt(intptr_t index, uword pc) { pcs_.InsertAt(index, pc); } |
580 pcs_.InsertAt(index, pc); | |
581 } | |
582 | 518 |
583 // Number of pcs in stack trace. | 519 // Number of pcs in stack trace. |
584 intptr_t length() const { return pcs_.length(); } | 520 intptr_t length() const { return pcs_.length(); } |
585 | 521 |
586 // Get |pc| at |index|. | 522 // Get |pc| at |index|. |
587 uword At(intptr_t index) const { | 523 uword At(intptr_t index) const { |
588 ASSERT(index >= 0); | 524 ASSERT(index >= 0); |
589 ASSERT(index < length()); | 525 ASSERT(index < length()); |
590 return pcs_[index]; | 526 return pcs_[index]; |
591 } | 527 } |
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602 void set_vm_tag(uword tag) { vm_tag_ = tag; } | 538 void set_vm_tag(uword tag) { vm_tag_ = tag; } |
603 | 539 |
604 // The user tag. | 540 // The user tag. |
605 uword user_tag() const { return user_tag_; } | 541 uword user_tag() const { return user_tag_; } |
606 void set_user_tag(uword tag) { user_tag_ = tag; } | 542 void set_user_tag(uword tag) { user_tag_ = tag; } |
607 | 543 |
608 // The class id if this is an allocation profile sample. -1 otherwise. | 544 // The class id if this is an allocation profile sample. -1 otherwise. |
609 intptr_t allocation_cid() const { return allocation_cid_; } | 545 intptr_t allocation_cid() const { return allocation_cid_; } |
610 void set_allocation_cid(intptr_t cid) { allocation_cid_ = cid; } | 546 void set_allocation_cid(intptr_t cid) { allocation_cid_ = cid; } |
611 | 547 |
612 bool IsAllocationSample() const { | 548 bool IsAllocationSample() const { return allocation_cid_ > 0; } |
613 return allocation_cid_ > 0; | |
614 } | |
615 | 549 |
616 // Was the stack trace truncated? | 550 // Was the stack trace truncated? |
617 bool truncated() const { return truncated_; } | 551 bool truncated() const { return truncated_; } |
618 void set_truncated(bool truncated) { truncated_ = truncated; } | 552 void set_truncated(bool truncated) { truncated_ = truncated; } |
619 | 553 |
620 // Was the first frame in the stack trace executing? | 554 // Was the first frame in the stack trace executing? |
621 bool first_frame_executing() const { return first_frame_executing_; } | 555 bool first_frame_executing() const { return first_frame_executing_; } |
622 void set_first_frame_executing(bool first_frame_executing) { | 556 void set_first_frame_executing(bool first_frame_executing) { |
623 first_frame_executing_ = first_frame_executing; | 557 first_frame_executing_ = first_frame_executing; |
624 } | 558 } |
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652 friend class SampleBuffer; | 586 friend class SampleBuffer; |
653 DISALLOW_COPY_AND_ASSIGN(ProcessedSample); | 587 DISALLOW_COPY_AND_ASSIGN(ProcessedSample); |
654 }; | 588 }; |
655 | 589 |
656 | 590 |
657 // A collection of |ProcessedSample|s. | 591 // A collection of |ProcessedSample|s. |
658 class ProcessedSampleBuffer : public ZoneAllocated { | 592 class ProcessedSampleBuffer : public ZoneAllocated { |
659 public: | 593 public: |
660 ProcessedSampleBuffer(); | 594 ProcessedSampleBuffer(); |
661 | 595 |
662 void Add(ProcessedSample* sample) { | 596 void Add(ProcessedSample* sample) { samples_.Add(sample); } |
663 samples_.Add(sample); | |
664 } | |
665 | 597 |
666 intptr_t length() const { | 598 intptr_t length() const { return samples_.length(); } |
667 return samples_.length(); | |
668 } | |
669 | 599 |
670 ProcessedSample* At(intptr_t index) { | 600 ProcessedSample* At(intptr_t index) { return samples_.At(index); } |
671 return samples_.At(index); | |
672 } | |
673 | 601 |
674 const CodeLookupTable& code_lookup_table() const { | 602 const CodeLookupTable& code_lookup_table() const { |
675 return *code_lookup_table_; | 603 return *code_lookup_table_; |
676 } | 604 } |
677 | 605 |
678 private: | 606 private: |
679 ZoneGrowableArray<ProcessedSample*> samples_; | 607 ZoneGrowableArray<ProcessedSample*> samples_; |
680 CodeLookupTable* code_lookup_table_; | 608 CodeLookupTable* code_lookup_table_; |
681 | 609 |
682 DISALLOW_COPY_AND_ASSIGN(ProcessedSampleBuffer); | 610 DISALLOW_COPY_AND_ASSIGN(ProcessedSampleBuffer); |
683 }; | 611 }; |
684 | 612 |
685 } // namespace dart | 613 } // namespace dart |
686 | 614 |
687 #endif // RUNTIME_VM_PROFILER_H_ | 615 #endif // RUNTIME_VM_PROFILER_H_ |
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