private void HandleSingleStep(jvmtiEnvHandle env, JNIEnvHandle jniEnv, jthread threadHandle, jmethodID methodId, jlocation jlocation)
{
JvmtiEnvironment environment = JvmtiEnvironment.GetOrCreateInstance(_service.VirtualMachine, env);
JniEnvironment nativeEnvironment = JniEnvironment.GetOrCreateInstance(jniEnv);
ThreadId threadId = VirtualMachine.TrackLocalThreadReference(threadHandle, environment, nativeEnvironment, false);
TaggedReferenceTypeId declaringClass;
MethodId method = new MethodId(methodId.Handle);
ulong index = (ulong)jlocation.Value;
JvmtiErrorHandler.ThrowOnFailure(environment.GetMethodDeclaringClass(nativeEnvironment, method, out declaringClass));
Location location = new Location(declaringClass, method, index);
EventFilter[] filters = GetEventFilters(EventKind.SingleStep);
foreach (var filter in filters)
{
if (filter.ProcessEvent(environment, nativeEnvironment, this, threadId, default(TaggedReferenceTypeId), location))
{
SendSingleStepEvent(environment, filter, threadId, location);
}
}
}
public JvmRemoteLocation(JvmMethodRemoteHandle method, jlocation location)
{
Method = method;
Location = location;
}
private void HandleException(jvmtiEnvHandle env, JNIEnvHandle jniEnv, jthread threadHandle, jmethodID methodId, jlocation jlocation, jobject exceptionHandle, jmethodID catchMethodId, jlocation catchjLocation)
{
// don't send exception events from an agent thread
if (VirtualMachine.IsAgentThread.Value)
return;
JvmtiEnvironment environment = JvmtiEnvironment.GetOrCreateInstance(_service.VirtualMachine, env);
JniEnvironment nativeEnvironment = JniEnvironment.GetOrCreateInstance(jniEnv);
TaggedReferenceTypeId declaringClass;
MethodId method = new MethodId(methodId.Handle);
ulong index = (ulong)jlocation.Value;
JvmtiErrorHandler.ThrowOnFailure(environment.GetMethodDeclaringClass(nativeEnvironment, method, out declaringClass));
Location location = new Location(declaringClass, method, index);
Location catchLocation;
method = new MethodId(catchMethodId.Handle);
index = (ulong)catchjLocation.Value;
if (catchMethodId.Handle != IntPtr.Zero)
{
JvmtiErrorHandler.ThrowOnFailure(environment.GetMethodDeclaringClass(nativeEnvironment, method, out declaringClass));
catchLocation = new Location(declaringClass, method, index);
}
else
{
catchLocation = default(Location);
}
TaggedObjectId exceptionId = VirtualMachine.TrackLocalObjectReference(exceptionHandle, environment, nativeEnvironment, false);
ThreadId threadId = VirtualMachine.TrackLocalThreadReference(threadHandle, environment, nativeEnvironment, false);
EventFilter[] filters = GetEventFilters(EventKind.Exception);
foreach (var filter in filters)
{
if (filter.ProcessEvent(environment, nativeEnvironment, this, threadId, default(TaggedReferenceTypeId), location))
{
SendExceptionEvent(environment, filter, threadId, location, exceptionId, catchLocation);
}
}
////Location location = new Location();
////Location catchLocation = new Location();
//throw new NotImplementedException();
#if false
ThreadId threadId = GetObjectId(ref threadHandle);
TaggedObjectId exception = GetObjectId(ref exceptionHandle);
EventFilter[] filters = GetEventFilters(EventKind.Exception);
foreach (var filter in filters)
{
if (filter.ProcessEvent(threadId, default(TaggedReferenceTypeId)))
{
ApplySuspendPolicy(environment, filter.SuspendPolicy, threadId);
Callback.HandleException(filter.SuspendPolicy, filter.RequestId, threadId, location, exception, catchLocation);
}
}
#endif
//JvmEnvironment environment = JvmEnvironment.GetEnvironment(env);
//JvmThreadReference thread = JvmThreadReference.FromHandle(environment, jniEnv, threadHandle, true);
//JvmLocation location = new JvmLocation(environment, method, jlocation);
//JvmObjectReference exception = JvmObjectReference.FromHandle(environment, jniEnv, exceptionHandle, true);
//JvmLocation catchLocation = new JvmLocation(environment, catchMethod, catchjLocation);
//foreach (var processor in _processors)
//{
// processor.HandleException(environment, thread, location, exception, catchLocation);
//}
}
private void HandleExceptionCatch(jvmtiEnvHandle env, JNIEnvHandle jniEnv, jthread threadHandle, jmethodID methodId, jlocation jlocation, jobject exceptionHandle)
{
if (!VirtualMachine.IsAgentThread.Value)
{
// ignore events before VMInit
if (AgentEventDispatcher == null)
return;
// dispatch this call to an agent thread
Action<jvmtiEnvHandle, JNIEnvHandle, jthread, jmethodID, jlocation, jobject> method = HandleExceptionCatch;
AgentEventDispatcher.Invoke(method, env, jniEnv, threadHandle, methodId, jlocation, exceptionHandle);
return;
}
//JvmEnvironment environment = JvmEnvironment.GetEnvironment(env);
//JvmThreadReference thread = JvmThreadReference.FromHandle(environment, jniEnv, threadHandle, true);
//JvmLocation location = new JvmLocation(environment, method, jlocation);
//JvmObjectReference exception = JvmObjectReference.FromHandle(environment, jniEnv, exceptionHandle, true);
//foreach (var processor in _processors)
//{
// processor.HandleExceptionCatch(environment, thread, location, exception);
//}
}
public Error SetEventInternal(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventKind eventKind, EventFilter filter)
{
EventRequestModifier locationModifier = default(EventRequestModifier);
EventRequestModifier stepModifier = default(EventRequestModifier);
switch (eventKind)
{
case EventKind.Breakpoint:
// we're going to need the location modifier to set the breakpoint
if (filter.Modifiers.Count == 0 || filter.Modifiers[0].Kind != ModifierKind.LocationFilter)
return Error.IllegalArgument;
locationModifier = filter.Modifiers[0];
break;
case EventKind.SingleStep:
// the first modifier contains the step properties
if (filter.Modifiers.Count == 0 || filter.Modifiers[0].Kind != ModifierKind.Step)
return Error.IllegalArgument;
stepModifier = filter.Modifiers[0];
break;
case EventKind.FramePop:
if (filter.InternalEventKind == EventKind.SingleStep)
goto case EventKind.SingleStep;
break;
default:
break;
}
lock (_eventRequests)
{
Dictionary<RequestId, EventFilter> requests;
if (!_eventRequests.TryGetValue(eventKind, out requests))
{
requests = new Dictionary<RequestId, EventFilter>();
_eventRequests.Add(eventKind, requests);
}
requests.Add(filter.RequestId, filter);
if (requests.Count == 1)
{
JvmEventType? eventToEnable = GetJvmEventType(eventKind);
if (eventToEnable != null)
{
jvmtiError error = Environment.SetEventNotificationMode(JvmEventMode.Enable, eventToEnable.Value);
if (error != jvmtiError.None)
return GetStandardError(error);
}
}
}
switch (eventKind)
{
case EventKind.Breakpoint:
{
Contract.Assert(locationModifier.Kind == ModifierKind.LocationFilter);
jmethodID methodId = locationModifier.Location.Method;
jlocation location = new jlocation((long)locationModifier.Location.Index);
jvmtiError error = Environment.SetBreakpoint(methodId, location);
if (error != jvmtiError.None)
return GetStandardError(error);
break;
}
case EventKind.FramePop:
if (filter.InternalEventKind == EventKind.SingleStep)
{
using (var thread = VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, stepModifier.Thread))
{
if (!thread.IsAlive)
return Error.InvalidThread;
jvmtiError error = environment.RawInterface.NotifyFramePop(environment, thread.Value, 0);
if (error != jvmtiError.None)
return GetStandardError(error);
}
}
break;
default:
break;
}
return Error.None;
}
public Error ClearEventInternal(EventKind eventKind, RequestId requestId)
{
lock (_eventRequests)
{
Dictionary<RequestId, EventFilter> requests;
if (!_eventRequests.TryGetValue(eventKind, out requests))
return Error.None;
EventFilter eventFilter;
if (!requests.TryGetValue(requestId, out eventFilter))
return Error.None;
requests.Remove(requestId);
if (requests.Count == 0)
{
JvmEventType? eventToDisable = GetJvmEventType(eventKind);
if (eventToDisable != null)
{
jvmtiError error = Environment.SetEventNotificationMode(JvmEventMode.Disable, eventToDisable.Value);
if (error != jvmtiError.None)
return GetStandardError(error);
}
}
if (eventKind == EventKind.Breakpoint)
{
LocationEventFilter locationFilter = eventFilter as LocationEventFilter;
if (locationFilter == null)
{
AggregateEventFilter aggregateFilter = eventFilter as AggregateEventFilter;
Contract.Assert(aggregateFilter != null);
locationFilter = aggregateFilter.Filters.OfType<LocationEventFilter>().FirstOrDefault();
}
Contract.Assert(locationFilter != null);
jmethodID methodId = locationFilter.Location.Method;
jlocation location = new jlocation((long)locationFilter.Location.Index);
jvmtiError error = Environment.ClearBreakpoint(methodId, location);
if (error != jvmtiError.None)
return GetStandardError(error);
}
return Error.None;
}
}
private void HandleBreakpoint(jvmtiEnvHandle env, JNIEnvHandle jniEnv, jthread threadHandle, jmethodID methodId, jlocation jlocation)
{
if (!VirtualMachine.IsAgentThread.Value)
{
// ignore events before VMInit
if (AgentEventDispatcher == null)
return;
// dispatch this call to an agent thread
Action<jvmtiEnvHandle, JNIEnvHandle, jthread, jmethodID, jlocation> invokeMethod = HandleBreakpoint;
AgentEventDispatcher.Invoke(invokeMethod, env, jniEnv, threadHandle, methodId, jlocation);
return;
}
JvmtiEnvironment environment = JvmtiEnvironment.GetOrCreateInstance(_service.VirtualMachine, env);
JniEnvironment nativeEnvironment;
JniErrorHandler.ThrowOnFailure(VirtualMachine.AttachCurrentThreadAsDaemon(environment, out nativeEnvironment, false));
ThreadId threadId = VirtualMachine.TrackLocalThreadReference(threadHandle, environment, nativeEnvironment, false);
TaggedReferenceTypeId declaringClass;
MethodId method = new MethodId(methodId.Handle);
ulong index = (ulong)jlocation.Value;
JvmtiErrorHandler.ThrowOnFailure(environment.GetMethodDeclaringClass(nativeEnvironment, method, out declaringClass));
Location location = new Location(declaringClass, method, index);
EventFilter[] filters = GetEventFilters(EventKind.Breakpoint);
foreach (var filter in filters)
{
if (filter.ProcessEvent(environment, nativeEnvironment, this, threadId, default(TaggedReferenceTypeId), location))
{
ApplySuspendPolicy(environment, nativeEnvironment, filter.SuspendPolicy, threadId);
Callback.Breakpoint(filter.SuspendPolicy, filter.RequestId, threadId, location);
}
}
}
private void HandleFieldModification(jvmtiEnvHandle env, JNIEnvHandle jniEnv, jthread threadHandle, jmethodID methodId, jlocation jlocation, jclass fieldClassHandle, jobject objectHandle, jfieldID fieldId, byte signatureType, jvalue newValue)
{
if (!VirtualMachine.IsAgentThread.Value)
{
// ignore events before VMInit
if (AgentEventDispatcher == null)
return;
// dispatch this call to an agent thread
Action<jvmtiEnvHandle, JNIEnvHandle, jthread, jmethodID, jlocation, jclass, jobject, jfieldID, byte, jvalue> method = HandleFieldModification;
AgentEventDispatcher.Invoke(method, env, jniEnv, threadHandle, methodId, jlocation, fieldClassHandle, objectHandle, fieldId, signatureType, newValue);
return;
}
//JvmEnvironment environment = JvmEnvironment.GetEnvironment(env);
//JvmThreadReference thread = JvmThreadReference.FromHandle(environment, jniEnv, threadHandle, true);
//JvmLocation location = new JvmLocation(environment, method, jlocation);
//JvmClassReference fieldClass = JvmClassReference.FromHandle(environment, jniEnv, fieldClassHandle, true);
//JvmObjectReference @object = JvmObjectReference.FromHandle(environment, jniEnv, objectHandle, true);
//JvmField field = new JvmField(environment, fieldId);
//foreach (var processor in _processors)
//{
// processor.HandleFieldModification(environment, thread, location, fieldClass, @object, field, signatureType, newValue);
//}
}
internal jvmtiError ClearBreakpoint(jmethodID methodId, jlocation location)
{
return(RawInterface.ClearBreakpoint(this, methodId, location));
}
public jvmtiError GetMethodLocation(MethodId methodId, out jlocation startLocation, out jlocation endLocation)
{
return(RawInterface.GetMethodLocation(this, (jmethodID)methodId, out startLocation, out endLocation));
}
public jvmtiError GetFrameLocation(jthread thread, int depth, out jmethodID method, out jlocation location)
{
return(RawInterface.GetFrameLocation(this, thread, depth, out method, out location));
}
public override bool ProcessEvent(JvmtiEnvironment environment, JniEnvironment nativeEnvironment, EventProcessor processor, ThreadId thread, TaggedReferenceTypeId @class, Location? location)
{
if (!base.ProcessEvent(environment, nativeEnvironment, processor, thread, @class, location))
return false;
// Step Out is implemented with Frame Pop events set at the correct depth
if (_depth == StepDepth.Out)
{
if (location.HasValue && !location.Value.Method.Equals(_lastMethod))
{
_lastLocation = new jlocation((long)location.Value.Index);
_lastMethod = location.Value.Method;
UpdateLastLine(environment);
}
return true;
}
using (var threadHandle = environment.VirtualMachine.GetLocalReferenceForThread(nativeEnvironment, thread))
{
int stackDepth;
JvmtiErrorHandler.ThrowOnFailure(environment.GetFrameCount(threadHandle.Value, out stackDepth));
if (_hasMethodInfo && stackDepth > _stackDepth)
{
bool convertToFramePop;
if (location.HasValue && (!_convertedToFramePop || !_framePopMethod.Equals(location.Value.Method)) && ShouldSkipCurrentMethod(processor.VirtualMachine, environment, nativeEnvironment, threadHandle.Value, stackDepth, location.Value, out convertToFramePop))
{
if (convertToFramePop)
{
// remove the single step event
JvmtiErrorHandler.ThrowOnFailure((jvmtiError)processor.ClearEventInternal(EventKind.FramePop, this.RequestId));
JvmtiErrorHandler.ThrowOnFailure((jvmtiError)processor.ClearEventInternal(EventKind.SingleStep, this.RequestId));
// set an actual step filter to respond when the thread arrives back in this frame
JvmtiErrorHandler.ThrowOnFailure((jvmtiError)processor.SetEventInternal(environment, nativeEnvironment, EventKind.FramePop, this));
_convertedToFramePop = true;
_framePopMethod = location.Value.Method;
}
return false;
}
else
{
_convertedToFramePop = false;
return true;
}
}
else if (stackDepth == _stackDepth)
{
if (_size == StepSize.Statement && _disassembledMethod != null)
{
int instructionIndex = _disassembledMethod.Instructions.FindIndex(i => (uint)i.Offset == location.Value.Index);
if (instructionIndex >= 0 && _evaluationStackDepths != null && (_evaluationStackDepths[instructionIndex] ?? 0) != 0)
{
return false;
}
else if (instructionIndex >= 0 && _disassembledMethod.Instructions[instructionIndex].OpCode.FlowControl == JavaFlowControl.Branch)
{
// follow branch instructions before stopping
return false;
}
}
else if (_lastLine != null)
{
// see if we're on the same line
LineNumberData[] lines;
jvmtiError error = environment.GetLineNumberTable(location.Value.Method, out lines);
if (error == jvmtiError.None)
{
LineNumberData entry = lines.LastOrDefault(i => i.LineCodeIndex <= (long)location.Value.Index);
if (entry.LineNumber == _lastLine)
return false;
}
}
}
if (location.HasValue)
{
_lastLocation = new jlocation((long)location.Value.Index);
_lastMethod = location.Value.Method;
UpdateLastLine(environment);
}
_stackDepth = stackDepth;
return true;
}
}
internal jvmtiError ClearBreakpoint(jmethodID methodId, jlocation location)
{
return RawInterface.ClearBreakpoint(this, methodId, location);
}
public jvmtiError GetFrameLocation(jthread thread, int depth, out jmethodID method, out jlocation location)
{
return RawInterface.GetFrameLocation(this, thread, depth, out method, out location);
}
public jvmtiError GetMethodLocation(MethodId methodId, out jlocation startLocation, out jlocation endLocation)
{
return RawInterface.GetMethodLocation(this, (jmethodID)methodId, out startLocation, out endLocation);
}