/// <summary>
/// Creates a default 'source level step' on process with current active frame and active thread.
/// </summary>
/// <param name="process">non-null process </param>
/// <param name="type">type of step (in, out, over)</param>
/// <param name="singleStepInstructions">false to step source level, true to step single instructions</param>
/// <returns></returns>
public static StepperDescriptor CreateSourceLevelStep(MDbgProcess process, StepperType type, bool singleStepInstructions)
{
StepperDescriptor s = new StepperDescriptor(process);
s.StepperType = type;
//
// Handle Step-out case.
//
if (type == StepperType.Out)
{
return(s);
}
//
// Handle step-over / step-in case
//
bool stepInto = (type == StepperType.In);
// Cache current
s.Thread = process.Threads.Active.CorThread;
s.Frame = s.Thread.ActiveFrame;
CorDebugMappingResult mappingResult;
uint ip;
if (!singleStepInstructions)
{
// For source-level stepping, skip some interceptors. These are random, and cause
// random differences in stepping across different runtimes; and user generally don't care
// about interceptors.
// It's actually a debatable policy about which interceptors to skip and stop on.
s.InterceptMask = CorDebugIntercept.INTERCEPT_ALL &
~(CorDebugIntercept.INTERCEPT_SECURITY | CorDebugIntercept.INTERCEPT_CLASS_INIT);
}
s.Frame.GetIP(out ip, out mappingResult);
if (singleStepInstructions ||
(mappingResult != CorDebugMappingResult.MAPPING_EXACT &&
mappingResult != CorDebugMappingResult.MAPPING_APPROXIMATE))
{
// Leave step ranges null
}
else
{
// Getting the step ranges is what really makes this a source-level step.
MDbgFunction f = process.Modules.LookupFunction(s.Frame.Function);
COR_DEBUG_STEP_RANGE[] sr = f.GetStepRangesFromIP((int)ip);
if (sr != null)
{
s.SetStepRanges(sr, true);
}
else
{
// Leave step ranges null.
}
}
return(s);
}
public Stepper(
List <Step> steps,
Key key = null,
StepperType type = StepperType.vertical,
int currentStep = 0,
ValueChanged <int> onStepTapped = null,
VoidCallback onStepContinue = null,
VoidCallback onStepCancel = null,
ControlsWidgetBuilder controlsBuilder = null
) : base(key)
{
this.steps = steps;
this.type = type;
this.currentStep = currentStep;
this.onStepTapped = onStepTapped;
this.onStepContinue = onStepContinue;
this.onStepCancel = onStepCancel;
this.controlsBuilder = controlsBuilder;
}
/// <summary>
/// Creates a default 'source level step' on process with current active frame and active thread.
/// </summary>
/// <param name="process">non-null process </param>
/// <param name="type">type of step (in, out, over)</param>
/// <param name="singleStepInstructions">false to step source level, true to step single instructions</param>
/// <returns></returns>
public static StepperDescriptor CreateSourceLevelStep(MDbgProcess process, StepperType type, bool singleStepInstructions)
{
StepperDescriptor s = new StepperDescriptor(process);
s.StepperType = type;
//
// Handle Step-out case.
//
if (type == StepperType.Out)
{
return s;
}
//
// Handle step-over / step-in case
//
bool stepInto = (type == StepperType.In);
// Cache current
s.Thread = process.Threads.Active.CorThread;
s.Frame = s.Thread.ActiveFrame;
CorDebugMappingResult mappingResult;
uint ip;
if (!singleStepInstructions)
{
// For source-level stepping, skip some interceptors. These are random, and cause
// random differences in stepping across different runtimes; and user generally don't care
// about interceptors.
// It's actually a debatable policy about which interceptors to skip and stop on.
s.InterceptMask = CorDebugIntercept.INTERCEPT_ALL &
~(CorDebugIntercept.INTERCEPT_SECURITY | CorDebugIntercept.INTERCEPT_CLASS_INIT);
}
s.Frame.GetIP(out ip, out mappingResult);
if (singleStepInstructions ||
(mappingResult != CorDebugMappingResult.MAPPING_EXACT &&
mappingResult != CorDebugMappingResult.MAPPING_APPROXIMATE))
{
// Leave step ranges null
}
else
{
// Getting the step ranges is what really makes this a source-level step.
MDbgFunction f = process.Modules.LookupFunction(s.Frame.Function);
COR_DEBUG_STEP_RANGE[] sr = f.GetStepRangesFromIP((int)ip);
if (sr != null)
{
s.SetStepRanges(sr, true);
}
else
{
// Leave step ranges null.
}
}
return s;
}
/// <summary>
/// Creates a source level stepper
/// </summary>
/// <param name="process"></param>
/// <param name="type"></param>
/// <returns></returns>
public static StepperDescriptor CreateSourceLevelStep(MDbgProcess process, StepperType type)
{
bool stepNativeCode = false;
return CreateSourceLevelStep(process, type, stepNativeCode);
}
/// <summary>
/// Creates a source level stepper
/// </summary>
/// <param name="process"></param>
/// <param name="type"></param>
/// <returns></returns>
public static StepperDescriptor CreateSourceLevelStep(MDbgProcess process, StepperType type)
{
bool stepNativeCode = false;
return(CreateSourceLevelStep(process, type, stepNativeCode));
}
//////////////////////////////////////////////////////////////////////////////////
//
// Private functions
//
//////////////////////////////////////////////////////////////////////////////////
private void StepImpl(bool stepNativeCode, StepperType type)
{
EnsureCanExecute("stepping");
StepperDescriptor s = StepperDescriptor.CreateSourceLevelStep(this, type, stepNativeCode);
CorStepper stepper = s.Step();
SetActiveStepper(stepper);
ReallyContinueProcess();
}
