allocation_record.h revision bdf7f1c3ab65ccb70f62db5ab31dba060632d458
18c2ff641294715864013737fdec57cdfd410270cMan Cao/* 28c2ff641294715864013737fdec57cdfd410270cMan Cao * Copyright (C) 2015 The Android Open Source Project 38c2ff641294715864013737fdec57cdfd410270cMan Cao * 48c2ff641294715864013737fdec57cdfd410270cMan Cao * Licensed under the Apache License, Version 2.0 (the "License"); 58c2ff641294715864013737fdec57cdfd410270cMan Cao * you may not use this file except in compliance with the License. 68c2ff641294715864013737fdec57cdfd410270cMan Cao * You may obtain a copy of the License at 78c2ff641294715864013737fdec57cdfd410270cMan Cao * 88c2ff641294715864013737fdec57cdfd410270cMan Cao * http://www.apache.org/licenses/LICENSE-2.0 98c2ff641294715864013737fdec57cdfd410270cMan Cao * 108c2ff641294715864013737fdec57cdfd410270cMan Cao * Unless required by applicable law or agreed to in writing, software 118c2ff641294715864013737fdec57cdfd410270cMan Cao * distributed under the License is distributed on an "AS IS" BASIS, 128c2ff641294715864013737fdec57cdfd410270cMan Cao * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 138c2ff641294715864013737fdec57cdfd410270cMan Cao * See the License for the specific language governing permissions and 148c2ff641294715864013737fdec57cdfd410270cMan Cao * limitations under the License. 158c2ff641294715864013737fdec57cdfd410270cMan Cao */ 168c2ff641294715864013737fdec57cdfd410270cMan Cao 178c2ff641294715864013737fdec57cdfd410270cMan Cao#ifndef ART_RUNTIME_GC_ALLOCATION_RECORD_H_ 188c2ff641294715864013737fdec57cdfd410270cMan Cao#define ART_RUNTIME_GC_ALLOCATION_RECORD_H_ 198c2ff641294715864013737fdec57cdfd410270cMan Cao 208c2ff641294715864013737fdec57cdfd410270cMan Cao#include <list> 2123428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier#include <memory> 228c2ff641294715864013737fdec57cdfd410270cMan Cao 238c2ff641294715864013737fdec57cdfd410270cMan Cao#include "base/mutex.h" 248c2ff641294715864013737fdec57cdfd410270cMan Cao#include "object_callbacks.h" 258c2ff641294715864013737fdec57cdfd410270cMan Cao#include "gc_root.h" 268c2ff641294715864013737fdec57cdfd410270cMan Cao 278c2ff641294715864013737fdec57cdfd410270cMan Caonamespace art { 288c2ff641294715864013737fdec57cdfd410270cMan Cao 298c2ff641294715864013737fdec57cdfd410270cMan Caoclass ArtMethod; 308c2ff641294715864013737fdec57cdfd410270cMan Caoclass Thread; 318c2ff641294715864013737fdec57cdfd410270cMan Cao 328c2ff641294715864013737fdec57cdfd410270cMan Caonamespace mirror { 338c2ff641294715864013737fdec57cdfd410270cMan Cao class Class; 348c2ff641294715864013737fdec57cdfd410270cMan Cao class Object; 358c2ff641294715864013737fdec57cdfd410270cMan Cao} 368c2ff641294715864013737fdec57cdfd410270cMan Cao 378c2ff641294715864013737fdec57cdfd410270cMan Caonamespace gc { 388c2ff641294715864013737fdec57cdfd410270cMan Cao 398c2ff641294715864013737fdec57cdfd410270cMan Caoclass AllocRecordStackTraceElement { 408c2ff641294715864013737fdec57cdfd410270cMan Cao public: 41bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe int32_t ComputeLineNumber() const REQUIRES_SHARED(Locks::mutator_lock_); 428c2ff641294715864013737fdec57cdfd410270cMan Cao 4323428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier AllocRecordStackTraceElement() = default; 4423428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier AllocRecordStackTraceElement(ArtMethod* method, uint32_t dex_pc) 4523428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier : method_(method), 4623428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier dex_pc_(dex_pc) {} 4723428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier 488c2ff641294715864013737fdec57cdfd410270cMan Cao ArtMethod* GetMethod() const { 498c2ff641294715864013737fdec57cdfd410270cMan Cao return method_; 508c2ff641294715864013737fdec57cdfd410270cMan Cao } 518c2ff641294715864013737fdec57cdfd410270cMan Cao 528c2ff641294715864013737fdec57cdfd410270cMan Cao void SetMethod(ArtMethod* m) { 538c2ff641294715864013737fdec57cdfd410270cMan Cao method_ = m; 548c2ff641294715864013737fdec57cdfd410270cMan Cao } 558c2ff641294715864013737fdec57cdfd410270cMan Cao 568c2ff641294715864013737fdec57cdfd410270cMan Cao uint32_t GetDexPc() const { 578c2ff641294715864013737fdec57cdfd410270cMan Cao return dex_pc_; 588c2ff641294715864013737fdec57cdfd410270cMan Cao } 598c2ff641294715864013737fdec57cdfd410270cMan Cao 608c2ff641294715864013737fdec57cdfd410270cMan Cao void SetDexPc(uint32_t pc) { 618c2ff641294715864013737fdec57cdfd410270cMan Cao dex_pc_ = pc; 628c2ff641294715864013737fdec57cdfd410270cMan Cao } 638c2ff641294715864013737fdec57cdfd410270cMan Cao 648c2ff641294715864013737fdec57cdfd410270cMan Cao bool operator==(const AllocRecordStackTraceElement& other) const { 658c2ff641294715864013737fdec57cdfd410270cMan Cao return method_ == other.method_ && dex_pc_ == other.dex_pc_; 668c2ff641294715864013737fdec57cdfd410270cMan Cao } 678c2ff641294715864013737fdec57cdfd410270cMan Cao 688c2ff641294715864013737fdec57cdfd410270cMan Cao private: 6923428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier ArtMethod* method_ = nullptr; 7023428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier uint32_t dex_pc_ = 0; 718c2ff641294715864013737fdec57cdfd410270cMan Cao}; 728c2ff641294715864013737fdec57cdfd410270cMan Cao 738c2ff641294715864013737fdec57cdfd410270cMan Caoclass AllocRecordStackTrace { 748c2ff641294715864013737fdec57cdfd410270cMan Cao public: 758c2ff641294715864013737fdec57cdfd410270cMan Cao static constexpr size_t kHashMultiplier = 17; 768c2ff641294715864013737fdec57cdfd410270cMan Cao 7723428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier AllocRecordStackTrace() = default; 781ed11b9ad5512cf464cb1686640df53201fa5297Man Cao 7923428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier AllocRecordStackTrace(AllocRecordStackTrace&& r) 8023428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier : tid_(r.tid_), 8123428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier stack_(std::move(r.stack_)) {} 828c2ff641294715864013737fdec57cdfd410270cMan Cao 8323428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier AllocRecordStackTrace(const AllocRecordStackTrace& r) 8423428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier : tid_(r.tid_), 8523428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier stack_(r.stack_) {} 868c2ff641294715864013737fdec57cdfd410270cMan Cao 878c2ff641294715864013737fdec57cdfd410270cMan Cao pid_t GetTid() const { 888c2ff641294715864013737fdec57cdfd410270cMan Cao return tid_; 898c2ff641294715864013737fdec57cdfd410270cMan Cao } 908c2ff641294715864013737fdec57cdfd410270cMan Cao 911ed11b9ad5512cf464cb1686640df53201fa5297Man Cao void SetTid(pid_t t) { 921ed11b9ad5512cf464cb1686640df53201fa5297Man Cao tid_ = t; 931ed11b9ad5512cf464cb1686640df53201fa5297Man Cao } 941ed11b9ad5512cf464cb1686640df53201fa5297Man Cao 958c2ff641294715864013737fdec57cdfd410270cMan Cao size_t GetDepth() const { 9623428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier return stack_.size(); 978c2ff641294715864013737fdec57cdfd410270cMan Cao } 988c2ff641294715864013737fdec57cdfd410270cMan Cao 998c2ff641294715864013737fdec57cdfd410270cMan Cao const AllocRecordStackTraceElement& GetStackElement(size_t index) const { 10023428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier DCHECK_LT(index, GetDepth()); 1018c2ff641294715864013737fdec57cdfd410270cMan Cao return stack_[index]; 1028c2ff641294715864013737fdec57cdfd410270cMan Cao } 1038c2ff641294715864013737fdec57cdfd410270cMan Cao 10423428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier void AddStackElement(const AllocRecordStackTraceElement& element) { 10523428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier stack_.push_back(element); 10623428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier } 10723428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier 1088c2ff641294715864013737fdec57cdfd410270cMan Cao void SetStackElementAt(size_t index, ArtMethod* m, uint32_t dex_pc) { 10923428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier DCHECK_LT(index, stack_.size()); 1108c2ff641294715864013737fdec57cdfd410270cMan Cao stack_[index].SetMethod(m); 1118c2ff641294715864013737fdec57cdfd410270cMan Cao stack_[index].SetDexPc(dex_pc); 1128c2ff641294715864013737fdec57cdfd410270cMan Cao } 1138c2ff641294715864013737fdec57cdfd410270cMan Cao 1148c2ff641294715864013737fdec57cdfd410270cMan Cao bool operator==(const AllocRecordStackTrace& other) const { 1158c2ff641294715864013737fdec57cdfd410270cMan Cao if (this == &other) return true; 11623428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier return tid_ == other.tid_ && stack_ == other.stack_; 1178c2ff641294715864013737fdec57cdfd410270cMan Cao } 1188c2ff641294715864013737fdec57cdfd410270cMan Cao 1198c2ff641294715864013737fdec57cdfd410270cMan Cao private: 12023428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier pid_t tid_ = 0; 12123428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier std::vector<AllocRecordStackTraceElement> stack_; 1228c2ff641294715864013737fdec57cdfd410270cMan Cao}; 1238c2ff641294715864013737fdec57cdfd410270cMan Cao 1248c2ff641294715864013737fdec57cdfd410270cMan Caostruct HashAllocRecordTypes { 1258c2ff641294715864013737fdec57cdfd410270cMan Cao size_t operator()(const AllocRecordStackTraceElement& r) const { 1268c2ff641294715864013737fdec57cdfd410270cMan Cao return std::hash<void*>()(reinterpret_cast<void*>(r.GetMethod())) * 1278c2ff641294715864013737fdec57cdfd410270cMan Cao AllocRecordStackTrace::kHashMultiplier + std::hash<uint32_t>()(r.GetDexPc()); 1288c2ff641294715864013737fdec57cdfd410270cMan Cao } 1298c2ff641294715864013737fdec57cdfd410270cMan Cao 1308c2ff641294715864013737fdec57cdfd410270cMan Cao size_t operator()(const AllocRecordStackTrace& r) const { 1318c2ff641294715864013737fdec57cdfd410270cMan Cao size_t depth = r.GetDepth(); 1328c2ff641294715864013737fdec57cdfd410270cMan Cao size_t result = r.GetTid() * AllocRecordStackTrace::kHashMultiplier + depth; 1338c2ff641294715864013737fdec57cdfd410270cMan Cao for (size_t i = 0; i < depth; ++i) { 1348c2ff641294715864013737fdec57cdfd410270cMan Cao result = result * AllocRecordStackTrace::kHashMultiplier + (*this)(r.GetStackElement(i)); 1358c2ff641294715864013737fdec57cdfd410270cMan Cao } 1368c2ff641294715864013737fdec57cdfd410270cMan Cao return result; 1378c2ff641294715864013737fdec57cdfd410270cMan Cao } 1388c2ff641294715864013737fdec57cdfd410270cMan Cao}; 1398c2ff641294715864013737fdec57cdfd410270cMan Cao 1408c2ff641294715864013737fdec57cdfd410270cMan Caotemplate <typename T> struct HashAllocRecordTypesPtr { 1418c2ff641294715864013737fdec57cdfd410270cMan Cao size_t operator()(const T* r) const { 1428c2ff641294715864013737fdec57cdfd410270cMan Cao if (r == nullptr) return 0; 1438c2ff641294715864013737fdec57cdfd410270cMan Cao return HashAllocRecordTypes()(*r); 1448c2ff641294715864013737fdec57cdfd410270cMan Cao } 1458c2ff641294715864013737fdec57cdfd410270cMan Cao}; 1468c2ff641294715864013737fdec57cdfd410270cMan Cao 1478c2ff641294715864013737fdec57cdfd410270cMan Caotemplate <typename T> struct EqAllocRecordTypesPtr { 1488c2ff641294715864013737fdec57cdfd410270cMan Cao bool operator()(const T* r1, const T* r2) const { 1498c2ff641294715864013737fdec57cdfd410270cMan Cao if (r1 == r2) return true; 1508c2ff641294715864013737fdec57cdfd410270cMan Cao if (r1 == nullptr || r2 == nullptr) return false; 1518c2ff641294715864013737fdec57cdfd410270cMan Cao return *r1 == *r2; 1528c2ff641294715864013737fdec57cdfd410270cMan Cao } 1538c2ff641294715864013737fdec57cdfd410270cMan Cao}; 1548c2ff641294715864013737fdec57cdfd410270cMan Cao 1558c2ff641294715864013737fdec57cdfd410270cMan Caoclass AllocRecord { 1568c2ff641294715864013737fdec57cdfd410270cMan Cao public: 1578c2ff641294715864013737fdec57cdfd410270cMan Cao // All instances of AllocRecord should be managed by an instance of AllocRecordObjectMap. 15823428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier AllocRecord(size_t count, mirror::Class* klass, AllocRecordStackTrace&& trace) 15923428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier : byte_count_(count), klass_(klass), trace_(std::move(trace)) {} 1608c2ff641294715864013737fdec57cdfd410270cMan Cao 1618c2ff641294715864013737fdec57cdfd410270cMan Cao size_t GetDepth() const { 16223428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier return trace_.GetDepth(); 1638c2ff641294715864013737fdec57cdfd410270cMan Cao } 1648c2ff641294715864013737fdec57cdfd410270cMan Cao 1658c2ff641294715864013737fdec57cdfd410270cMan Cao const AllocRecordStackTrace* GetStackTrace() const { 16623428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier return &trace_; 1678c2ff641294715864013737fdec57cdfd410270cMan Cao } 1688c2ff641294715864013737fdec57cdfd410270cMan Cao 1698c2ff641294715864013737fdec57cdfd410270cMan Cao size_t ByteCount() const { 1708c2ff641294715864013737fdec57cdfd410270cMan Cao return byte_count_; 1718c2ff641294715864013737fdec57cdfd410270cMan Cao } 1728c2ff641294715864013737fdec57cdfd410270cMan Cao 1738c2ff641294715864013737fdec57cdfd410270cMan Cao pid_t GetTid() const { 17423428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier return trace_.GetTid(); 1758c2ff641294715864013737fdec57cdfd410270cMan Cao } 1768c2ff641294715864013737fdec57cdfd410270cMan Cao 177bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe mirror::Class* GetClass() const REQUIRES_SHARED(Locks::mutator_lock_) { 17842c3c33df8b6eefc4ba532f1981282510f109928Man Cao return klass_.Read(); 17942c3c33df8b6eefc4ba532f1981282510f109928Man Cao } 18042c3c33df8b6eefc4ba532f1981282510f109928Man Cao 18141656de4b6440bcd1bea5fb785f0710153b2bc68Man Cao const char* GetClassDescriptor(std::string* storage) const 182bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_); 18341656de4b6440bcd1bea5fb785f0710153b2bc68Man Cao 184bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe GcRoot<mirror::Class>& GetClassGcRoot() REQUIRES_SHARED(Locks::mutator_lock_) { 18542c3c33df8b6eefc4ba532f1981282510f109928Man Cao return klass_; 18642c3c33df8b6eefc4ba532f1981282510f109928Man Cao } 18742c3c33df8b6eefc4ba532f1981282510f109928Man Cao 1888c2ff641294715864013737fdec57cdfd410270cMan Cao const AllocRecordStackTraceElement& StackElement(size_t index) const { 18923428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier return trace_.GetStackElement(index); 1908c2ff641294715864013737fdec57cdfd410270cMan Cao } 1918c2ff641294715864013737fdec57cdfd410270cMan Cao 1928c2ff641294715864013737fdec57cdfd410270cMan Cao private: 1938c2ff641294715864013737fdec57cdfd410270cMan Cao const size_t byte_count_; 19442c3c33df8b6eefc4ba532f1981282510f109928Man Cao // The klass_ could be a strong or weak root for GC 19542c3c33df8b6eefc4ba532f1981282510f109928Man Cao GcRoot<mirror::Class> klass_; 19623428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier // TODO: Share between alloc records with identical stack traces. 19723428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier AllocRecordStackTrace trace_; 1988c2ff641294715864013737fdec57cdfd410270cMan Cao}; 1998c2ff641294715864013737fdec57cdfd410270cMan Cao 2008c2ff641294715864013737fdec57cdfd410270cMan Caoclass AllocRecordObjectMap { 2018c2ff641294715864013737fdec57cdfd410270cMan Cao public: 20242c3c33df8b6eefc4ba532f1981282510f109928Man Cao // GcRoot<mirror::Object> pointers in the list are weak roots, and the last recent_record_max_ 20342c3c33df8b6eefc4ba532f1981282510f109928Man Cao // number of AllocRecord::klass_ pointers are strong roots (and the rest of klass_ pointers are 20442c3c33df8b6eefc4ba532f1981282510f109928Man Cao // weak roots). The last recent_record_max_ number of pairs in the list are always kept for DDMS's 20542c3c33df8b6eefc4ba532f1981282510f109928Man Cao // recent allocation tracking, but GcRoot<mirror::Object> pointers in these pairs can become null. 20642c3c33df8b6eefc4ba532f1981282510f109928Man Cao // Both types of pointers need read barriers, do not directly access them. 20723428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier using EntryPair = std::pair<GcRoot<mirror::Object>, AllocRecord>; 20823428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier typedef std::list<EntryPair> EntryList; 20923428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier 21023428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier // Caller needs to check that it is enabled before calling since we read the stack trace before 21123428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier // checking the enabled boolean. 21223428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier void RecordAllocation(Thread* self, 21323428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier mirror::Object** obj, 21423428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier size_t byte_count) 21590443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(!Locks::alloc_tracker_lock_) 216bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_); 2178c2ff641294715864013737fdec57cdfd410270cMan Cao 21890443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier static void SetAllocTrackingEnabled(bool enabled) REQUIRES(!Locks::alloc_tracker_lock_); 2198c2ff641294715864013737fdec57cdfd410270cMan Cao 22023428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier AllocRecordObjectMap() REQUIRES(Locks::alloc_tracker_lock_); 2218c2ff641294715864013737fdec57cdfd410270cMan Cao ~AllocRecordObjectMap(); 2228c2ff641294715864013737fdec57cdfd410270cMan Cao 22323428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier void Put(mirror::Object* obj, AllocRecord&& record) 224bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 22590443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(Locks::alloc_tracker_lock_) { 2261ed11b9ad5512cf464cb1686640df53201fa5297Man Cao if (entries_.size() == alloc_record_max_) { 2271ed11b9ad5512cf464cb1686640df53201fa5297Man Cao entries_.pop_front(); 2281ed11b9ad5512cf464cb1686640df53201fa5297Man Cao } 22923428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier entries_.push_back(EntryPair(GcRoot<mirror::Object>(obj), std::move(record))); 2308c2ff641294715864013737fdec57cdfd410270cMan Cao } 2318c2ff641294715864013737fdec57cdfd410270cMan Cao 232bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe size_t Size() const REQUIRES_SHARED(Locks::alloc_tracker_lock_) { 2338c2ff641294715864013737fdec57cdfd410270cMan Cao return entries_.size(); 2348c2ff641294715864013737fdec57cdfd410270cMan Cao } 2358c2ff641294715864013737fdec57cdfd410270cMan Cao 236bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe size_t GetRecentAllocationSize() const REQUIRES_SHARED(Locks::alloc_tracker_lock_) { 2371ed11b9ad5512cf464cb1686640df53201fa5297Man Cao CHECK_LE(recent_record_max_, alloc_record_max_); 2381ed11b9ad5512cf464cb1686640df53201fa5297Man Cao size_t sz = entries_.size(); 2391ed11b9ad5512cf464cb1686640df53201fa5297Man Cao return std::min(recent_record_max_, sz); 2401ed11b9ad5512cf464cb1686640df53201fa5297Man Cao } 2411ed11b9ad5512cf464cb1686640df53201fa5297Man Cao 2421ed11b9ad5512cf464cb1686640df53201fa5297Man Cao void VisitRoots(RootVisitor* visitor) 243bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 24490443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(Locks::alloc_tracker_lock_); 2458c2ff641294715864013737fdec57cdfd410270cMan Cao 24697509954404d031594b2ecbda607314d169d512eMathieu Chartier void SweepAllocationRecords(IsMarkedVisitor* visitor) 247bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 24890443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(Locks::alloc_tracker_lock_); 2498c2ff641294715864013737fdec57cdfd410270cMan Cao 25041656de4b6440bcd1bea5fb785f0710153b2bc68Man Cao // Allocation tracking could be enabled by user in between DisallowNewAllocationRecords() and 25141656de4b6440bcd1bea5fb785f0710153b2bc68Man Cao // AllowNewAllocationRecords(), in which case new allocation records can be added although they 25241656de4b6440bcd1bea5fb785f0710153b2bc68Man Cao // should be disallowed. However, this is GC-safe because new objects are not processed in this GC 25341656de4b6440bcd1bea5fb785f0710153b2bc68Man Cao // cycle. The only downside of not handling this case is that such new allocation records can be 25441656de4b6440bcd1bea5fb785f0710153b2bc68Man Cao // swept from the list. But missing the first few records is acceptable for using the button to 25541656de4b6440bcd1bea5fb785f0710153b2bc68Man Cao // enable allocation tracking. 25642c3c33df8b6eefc4ba532f1981282510f109928Man Cao void DisallowNewAllocationRecords() 257bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 25890443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(Locks::alloc_tracker_lock_); 25942c3c33df8b6eefc4ba532f1981282510f109928Man Cao void AllowNewAllocationRecords() 260bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 26190443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(Locks::alloc_tracker_lock_); 262fdbd13c7af91a042eda753e436eeebf0e1937250Hiroshi Yamauchi void BroadcastForNewAllocationRecords() 263bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 264fdbd13c7af91a042eda753e436eeebf0e1937250Hiroshi Yamauchi REQUIRES(Locks::alloc_tracker_lock_); 26542c3c33df8b6eefc4ba532f1981282510f109928Man Cao 2668c2ff641294715864013737fdec57cdfd410270cMan Cao // TODO: Is there a better way to hide the entries_'s type? 2678c2ff641294715864013737fdec57cdfd410270cMan Cao EntryList::iterator Begin() 268bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 26990443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(Locks::alloc_tracker_lock_) { 2708c2ff641294715864013737fdec57cdfd410270cMan Cao return entries_.begin(); 2718c2ff641294715864013737fdec57cdfd410270cMan Cao } 2728c2ff641294715864013737fdec57cdfd410270cMan Cao 2738c2ff641294715864013737fdec57cdfd410270cMan Cao EntryList::iterator End() 274bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 27590443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(Locks::alloc_tracker_lock_) { 2768c2ff641294715864013737fdec57cdfd410270cMan Cao return entries_.end(); 2778c2ff641294715864013737fdec57cdfd410270cMan Cao } 2788c2ff641294715864013737fdec57cdfd410270cMan Cao 2798c2ff641294715864013737fdec57cdfd410270cMan Cao EntryList::reverse_iterator RBegin() 280bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 28190443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(Locks::alloc_tracker_lock_) { 2828c2ff641294715864013737fdec57cdfd410270cMan Cao return entries_.rbegin(); 2838c2ff641294715864013737fdec57cdfd410270cMan Cao } 2848c2ff641294715864013737fdec57cdfd410270cMan Cao 2858c2ff641294715864013737fdec57cdfd410270cMan Cao EntryList::reverse_iterator REnd() 286bdf7f1c3ab65ccb70f62db5ab31dba060632d458Andreas Gampe REQUIRES_SHARED(Locks::mutator_lock_) 28790443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier REQUIRES(Locks::alloc_tracker_lock_) { 2888c2ff641294715864013737fdec57cdfd410270cMan Cao return entries_.rend(); 2898c2ff641294715864013737fdec57cdfd410270cMan Cao } 2908c2ff641294715864013737fdec57cdfd410270cMan Cao 2910f394021d6abfdf9ebea6c7f405ec936a812ea62Mathieu Chartier void Clear() REQUIRES(Locks::alloc_tracker_lock_); 2920f394021d6abfdf9ebea6c7f405ec936a812ea62Mathieu Chartier 2938c2ff641294715864013737fdec57cdfd410270cMan Cao private: 2948c2ff641294715864013737fdec57cdfd410270cMan Cao static constexpr size_t kDefaultNumAllocRecords = 512 * 1024; 2951ed11b9ad5512cf464cb1686640df53201fa5297Man Cao static constexpr size_t kDefaultNumRecentRecords = 64 * 1024 - 1; 2961ed11b9ad5512cf464cb1686640df53201fa5297Man Cao static constexpr size_t kDefaultAllocStackDepth = 16; 2971ed11b9ad5512cf464cb1686640df53201fa5297Man Cao static constexpr size_t kMaxSupportedStackDepth = 128; 29823428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier size_t alloc_record_max_ GUARDED_BY(Locks::alloc_tracker_lock_) = kDefaultNumAllocRecords; 29923428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier size_t recent_record_max_ GUARDED_BY(Locks::alloc_tracker_lock_) = kDefaultNumRecentRecords; 30023428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier size_t max_stack_depth_ = kDefaultAllocStackDepth; 30123428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier pid_t alloc_ddm_thread_id_ GUARDED_BY(Locks::alloc_tracker_lock_) = 0; 30223428587d32361736d4c5e0ba7270c7602695a43Mathieu Chartier bool allow_new_record_ GUARDED_BY(Locks::alloc_tracker_lock_) = true; 30342c3c33df8b6eefc4ba532f1981282510f109928Man Cao ConditionVariable new_record_condition_ GUARDED_BY(Locks::alloc_tracker_lock_); 30442c3c33df8b6eefc4ba532f1981282510f109928Man Cao // see the comment in typedef of EntryList 3058c2ff641294715864013737fdec57cdfd410270cMan Cao EntryList entries_ GUARDED_BY(Locks::alloc_tracker_lock_); 3068c2ff641294715864013737fdec57cdfd410270cMan Cao 30790443477f9a0061581c420775ce3b7eeae7468bcMathieu Chartier void SetProperties() REQUIRES(Locks::alloc_tracker_lock_); 3088c2ff641294715864013737fdec57cdfd410270cMan Cao}; 3098c2ff641294715864013737fdec57cdfd410270cMan Cao 3108c2ff641294715864013737fdec57cdfd410270cMan Cao} // namespace gc 3118c2ff641294715864013737fdec57cdfd410270cMan Cao} // namespace art 3128c2ff641294715864013737fdec57cdfd410270cMan Cao#endif // ART_RUNTIME_GC_ALLOCATION_RECORD_H_ 313