| /* |
| * Copyright (C) 2008 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| /* |
| * Dalvik-specific side of debugger support. (The JDWP code is intended to |
| * be relatively generic.) |
| */ |
| #ifndef ART_DEBUGGER_H_ |
| #define ART_DEBUGGER_H_ |
| |
| #include <pthread.h> |
| |
| #include <string> |
| |
| #include "jdwp/jdwp.h" |
| #include "object.h" |
| |
| namespace art { |
| |
| struct AllocRecord; |
| class Thread; |
| |
| /* |
| * Invoke-during-breakpoint support. |
| */ |
| struct DebugInvokeReq { |
| DebugInvokeReq() |
| : ready(false), invoke_needed_(false), |
| receiver_(NULL), thread_(NULL), class_(NULL), method_(NULL), |
| arg_count_(0), arg_values_(NULL), options_(0), error(JDWP::ERR_NONE), |
| result_tag(JDWP::JT_VOID), exception(0), |
| lock_("a DebugInvokeReq lock"), |
| cond_("a DebugInvokeReq condition variable") { |
| } |
| |
| /* boolean; only set when we're in the tail end of an event handler */ |
| bool ready; |
| |
| /* boolean; set if the JDWP thread wants this thread to do work */ |
| bool invoke_needed_; |
| |
| /* request */ |
| Object* receiver_; /* not used for ClassType.InvokeMethod */ |
| Object* thread_; |
| Class* class_; |
| AbstractMethod* method_; |
| uint32_t arg_count_; |
| uint64_t* arg_values_; /* will be NULL if arg_count_ == 0 */ |
| uint32_t options_; |
| |
| /* result */ |
| JDWP::JdwpError error; |
| JDWP::JdwpTag result_tag; |
| JValue result_value; |
| JDWP::ObjectId exception; |
| |
| /* condition variable to wait on while the method executes */ |
| Mutex lock_; |
| ConditionVariable cond_; |
| }; |
| |
| class Dbg { |
| public: |
| static bool ParseJdwpOptions(const std::string& options); |
| static void SetJdwpAllowed(bool allowed); |
| |
| static void StartJdwp(); |
| static void StopJdwp(); |
| |
| // Invoked by the GC in case we need to keep DDMS informed. |
| static void GcDidFinish() LOCKS_EXCLUDED(Locks::mutator_lock_); |
| |
| // Return the DebugInvokeReq for the current thread. |
| static DebugInvokeReq* GetInvokeReq(); |
| |
| static Thread* GetDebugThread(); |
| static void ClearWaitForEventThread(); |
| |
| /* |
| * Enable/disable breakpoints and step modes. Used to provide a heads-up |
| * when the debugger attaches. |
| */ |
| static void Connected(); |
| static void GoActive(); |
| static void Disconnected(); |
| static void Disposed(); |
| |
| // Returns true if we're actually debugging with a real debugger, false if it's |
| // just DDMS (or nothing at all). |
| static bool IsDebuggerActive(); |
| |
| // Returns true if we had -Xrunjdwp or -agentlib:jdwp= on the command line. |
| static bool IsJdwpConfigured(); |
| |
| static bool IsDisposed(); |
| |
| /* |
| * Time, in milliseconds, since the last debugger activity. Does not |
| * include DDMS activity. Returns -1 if there has been no activity. |
| * Returns 0 if we're in the middle of handling a debugger request. |
| */ |
| static int64_t LastDebuggerActivity(); |
| |
| static void UndoDebuggerSuspensions(); |
| |
| static void Exit(int status); |
| |
| static void VisitRoots(Heap::RootVisitor* visitor, void* arg); |
| |
| /* |
| * Class, Object, Array |
| */ |
| static std::string GetClassName(JDWP::RefTypeId id) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetClassObject(JDWP::RefTypeId id, JDWP::ObjectId& classObjectId) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetSuperclass(JDWP::RefTypeId id, JDWP::RefTypeId& superclassId) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetClassLoader(JDWP::RefTypeId id, JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetModifiers(JDWP::RefTypeId id, JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetReflectedType(JDWP::RefTypeId classId, JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void GetClassList(std::vector<JDWP::RefTypeId>& classes) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetClassInfo(JDWP::RefTypeId classId, JDWP::JdwpTypeTag* pTypeTag, |
| uint32_t* pStatus, std::string* pDescriptor) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void FindLoadedClassBySignature(const char* descriptor, std::vector<JDWP::RefTypeId>& ids) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetReferenceType(JDWP::ObjectId objectId, JDWP::ExpandBuf* pReply); |
| static JDWP::JdwpError GetSignature(JDWP::RefTypeId refTypeId, std::string& signature) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetSourceFile(JDWP::RefTypeId refTypeId, std::string& source_file) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetObjectTag(JDWP::ObjectId objectId, uint8_t& tag) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static size_t GetTagWidth(JDWP::JdwpTag tag); |
| |
| static JDWP::JdwpError GetArrayLength(JDWP::ObjectId arrayId, int& length) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError OutputArray(JDWP::ObjectId arrayId, int firstIndex, int count, |
| JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError SetArrayElements(JDWP::ObjectId arrayId, int firstIndex, int count, |
| const uint8_t* buf) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| static JDWP::ObjectId CreateString(const std::string& str) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError CreateObject(JDWP::RefTypeId classId, JDWP::ObjectId& new_object) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError CreateArrayObject(JDWP::RefTypeId arrayTypeId, uint32_t length, |
| JDWP::ObjectId& new_array) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| static bool MatchType(JDWP::RefTypeId instClassId, JDWP::RefTypeId classId) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| /* |
| * Method and Field |
| */ |
| static std::string GetMethodName(JDWP::RefTypeId refTypeId, JDWP::MethodId id) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError OutputDeclaredFields(JDWP::RefTypeId refTypeId, bool withGeneric, |
| JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError OutputDeclaredMethods(JDWP::RefTypeId refTypeId, bool withGeneric, |
| JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError OutputDeclaredInterfaces(JDWP::RefTypeId refTypeId, |
| JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void OutputLineTable(JDWP::RefTypeId refTypeId, JDWP::MethodId methodId, |
| JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void OutputVariableTable(JDWP::RefTypeId refTypeId, JDWP::MethodId id, bool withGeneric, |
| JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| static JDWP::JdwpTag GetFieldBasicTag(JDWP::FieldId fieldId) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpTag GetStaticFieldBasicTag(JDWP::FieldId fieldId) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_);; |
| static JDWP::JdwpError GetFieldValue(JDWP::ObjectId objectId, JDWP::FieldId fieldId, |
| JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError SetFieldValue(JDWP::ObjectId objectId, JDWP::FieldId fieldId, |
| uint64_t value, int width) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError GetStaticFieldValue(JDWP::RefTypeId refTypeId, JDWP::FieldId fieldId, |
| JDWP::ExpandBuf* pReply) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError SetStaticFieldValue(JDWP::FieldId fieldId, uint64_t value, int width) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| static std::string StringToUtf8(JDWP::ObjectId strId) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| /* |
| * Thread, ThreadGroup, Frame |
| */ |
| static bool GetThreadName(JDWP::ObjectId threadId, std::string& name) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_) |
| LOCKS_EXCLUDED(Locks::thread_list_lock_); |
| static JDWP::JdwpError GetThreadGroup(JDWP::ObjectId threadId, JDWP::ExpandBuf* pReply); |
| static std::string GetThreadGroupName(JDWP::ObjectId threadGroupId); |
| static JDWP::ObjectId GetThreadGroupParent(JDWP::ObjectId threadGroupId) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::ObjectId GetSystemThreadGroupId() |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::ObjectId GetMainThreadGroupId(); |
| |
| static bool GetThreadStatus(JDWP::ObjectId threadId, JDWP::JdwpThreadStatus* pThreadStatus, JDWP::JdwpSuspendStatus* pSuspendStatus); |
| static JDWP::JdwpError GetThreadDebugSuspendCount(JDWP::ObjectId threadId, JDWP::ExpandBuf* pReply); |
| static bool ThreadExists(JDWP::ObjectId threadId); |
| static bool IsSuspended(JDWP::ObjectId threadId); |
| //static void WaitForSuspend(JDWP::ObjectId threadId); |
| |
| // Fills 'thread_ids' with the threads in the given thread group. If thread_group_id == 0, |
| // returns all threads. |
| static void GetThreads(JDWP::ObjectId thread_group_id, std::vector<JDWP::ObjectId>& thread_ids) |
| LOCKS_EXCLUDED(Locks::thread_list_lock_) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void GetChildThreadGroups(JDWP::ObjectId thread_group_id, std::vector<JDWP::ObjectId>& child_thread_group_ids); |
| |
| static int GetThreadFrameCount(JDWP::ObjectId threadId); |
| static JDWP::JdwpError GetThreadFrames(JDWP::ObjectId thread_id, size_t start_frame, |
| size_t frame_count, JDWP::ExpandBuf* buf) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| static JDWP::ObjectId GetThreadSelfId() |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void SuspendVM() |
| LOCKS_EXCLUDED(Locks::thread_list_lock_, |
| Locks::thread_suspend_count_lock_); |
| static void ResumeVM(); |
| static JDWP::JdwpError SuspendThread(JDWP::ObjectId threadId, bool request_suspension = true) |
| LOCKS_EXCLUDED(Locks::mutator_lock_, |
| Locks::thread_list_lock_, |
| Locks::thread_suspend_count_lock_); |
| |
| static void ResumeThread(JDWP::ObjectId threadId) |
| LOCKS_EXCLUDED(Locks::thread_list_lock_, |
| Locks::thread_suspend_count_lock_) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void SuspendSelf(); |
| |
| static JDWP::JdwpError GetThisObject(JDWP::ObjectId thread_id, JDWP::FrameId frame_id, |
| JDWP::ObjectId* result) |
| LOCKS_EXCLUDED(Locks::thread_list_lock_, |
| Locks::thread_suspend_count_lock_) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void GetLocalValue(JDWP::ObjectId threadId, JDWP::FrameId frameId, int slot, |
| JDWP::JdwpTag tag, uint8_t* buf, size_t expectedLen) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void SetLocalValue(JDWP::ObjectId threadId, JDWP::FrameId frameId, int slot, |
| JDWP::JdwpTag tag, uint64_t value, size_t width) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| /* |
| * Debugger notification |
| */ |
| enum { |
| kBreakpoint = 0x01, |
| kSingleStep = 0x02, |
| kMethodEntry = 0x04, |
| kMethodExit = 0x08, |
| }; |
| static void PostLocationEvent(const AbstractMethod* method, int pcOffset, Object* thisPtr, int eventFlags) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void PostException(Thread* thread, JDWP::FrameId throw_frame_id, AbstractMethod* throw_method, |
| uint32_t throw_dex_pc, AbstractMethod* catch_method, uint32_t catch_dex_pc, |
| Throwable* exception) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void PostThreadStart(Thread* t) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void PostThreadDeath(Thread* t) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void PostClassPrepare(Class* c) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| static void UpdateDebugger(int32_t dex_pc, Thread* self) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| static void WatchLocation(const JDWP::JdwpLocation* pLoc) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void UnwatchLocation(const JDWP::JdwpLocation* pLoc) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static JDWP::JdwpError ConfigureStep(JDWP::ObjectId threadId, JDWP::JdwpStepSize size, |
| JDWP::JdwpStepDepth depth) |
| LOCKS_EXCLUDED(gBreakpointsLock) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void UnconfigureStep(JDWP::ObjectId threadId); |
| |
| static JDWP::JdwpError InvokeMethod(JDWP::ObjectId threadId, JDWP::ObjectId objectId, |
| JDWP::RefTypeId classId, JDWP::MethodId methodId, |
| uint32_t arg_count, uint64_t* arg_values, |
| JDWP::JdwpTag* arg_types, uint32_t options, |
| JDWP::JdwpTag* pResultTag, uint64_t* pResultValue, |
| JDWP::ObjectId* pExceptObj) |
| LOCKS_EXCLUDED(Locks::thread_list_lock_, |
| Locks::thread_suspend_count_lock_) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void ExecuteMethod(DebugInvokeReq* pReq); |
| |
| /* perform "late registration" of an object ID */ |
| static void RegisterObjectId(JDWP::ObjectId id); |
| |
| /* |
| * DDM support. |
| */ |
| static void DdmSendThreadNotification(Thread* t, uint32_t type) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void DdmSetThreadNotification(bool enable); |
| static bool DdmHandlePacket(const uint8_t* buf, int dataLen, uint8_t** pReplyBuf, int* pReplyLen); |
| static void DdmConnected() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void DdmDisconnected() SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void DdmSendChunk(uint32_t type, const std::vector<uint8_t>& bytes) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void DdmSendChunk(uint32_t type, size_t len, const uint8_t* buf) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void DdmSendChunkV(uint32_t type, const iovec* iov, int iov_count) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| /* |
| * Recent allocation tracking support. |
| */ |
| static void RecordAllocation(Class* type, size_t byte_count) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void SetAllocTrackingEnabled(bool enabled); |
| static inline bool IsAllocTrackingEnabled() { return recent_allocation_records_ != NULL; } |
| static jbyteArray GetRecentAllocations() |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void DumpRecentAllocations(); |
| |
| enum HpifWhen { |
| HPIF_WHEN_NEVER = 0, |
| HPIF_WHEN_NOW = 1, |
| HPIF_WHEN_NEXT_GC = 2, |
| HPIF_WHEN_EVERY_GC = 3 |
| }; |
| static int DdmHandleHpifChunk(HpifWhen when) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| enum HpsgWhen { |
| HPSG_WHEN_NEVER = 0, |
| HPSG_WHEN_EVERY_GC = 1, |
| }; |
| enum HpsgWhat { |
| HPSG_WHAT_MERGED_OBJECTS = 0, |
| HPSG_WHAT_DISTINCT_OBJECTS = 1, |
| }; |
| static bool DdmHandleHpsgNhsgChunk(HpsgWhen when, HpsgWhat what, bool native); |
| |
| static void DdmSendHeapInfo(HpifWhen reason) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void DdmSendHeapSegments(bool native) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| private: |
| static void DdmBroadcast(bool) SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| static void PostThreadStartOrStop(Thread*, uint32_t) |
| SHARED_LOCKS_REQUIRED(Locks::mutator_lock_); |
| |
| static AllocRecord* recent_allocation_records_; |
| }; |
| |
| #define CHUNK_TYPE(_name) \ |
| static_cast<uint32_t>((_name)[0] << 24 | (_name)[1] << 16 | (_name)[2] << 8 | (_name)[3]) |
| |
| } // namespace art |
| |
| #endif // ART_DEBUGGER_H_ |