// Sets the next statement to the given stack frame and code context.
int IDebugThread2.SetNextStatement(IDebugStackFrame2 stackFrame, IDebugCodeContext2 codeContext)
{
// CLRDBG TODO: This implementation should be changed to call an MI command
ulong addr = ((AD7MemoryAddress)codeContext).Address;
AD7StackFrame frame = ((AD7StackFrame)stackFrame);
if (frame.ThreadContext.Level != 0 || frame.Thread != this || !frame.ThreadContext.pc.HasValue || _engine.DebuggedProcess.MICommandFactory.Mode == MIMode.Clrdbg)
{
return(Constants.S_FALSE);
}
string toFunc = EngineUtils.GetAddressDescription(_engine.DebuggedProcess, addr);
string fromFunc = EngineUtils.GetAddressDescription(_engine.DebuggedProcess, frame.ThreadContext.pc.Value);
if (toFunc != fromFunc)
{
return(Constants.S_FALSE);
}
string result = frame.EvaluateExpression("$pc=" + EngineUtils.AsAddr(addr));
if (result != null)
{
_engine.DebuggedProcess.ThreadCache.MarkDirty();
return(Constants.S_OK);
}
return(Constants.S_FALSE);
}
// Sets the next statement to the given stack frame and code context.
int IDebugThread2.SetNextStatement(IDebugStackFrame2 stackFrame, IDebugCodeContext2 codeContext)
{
ulong addr = ((AD7MemoryAddress)codeContext).Address;
AD7StackFrame frame = ((AD7StackFrame)stackFrame);
if (frame.ThreadContext.Level != 0 || frame.Thread != this || !frame.ThreadContext.pc.HasValue)
{
return(Constants.S_FALSE);
}
string toFunc = EngineUtils.GetAddressDescription(_engine.DebuggedProcess, addr);
string fromFunc = EngineUtils.GetAddressDescription(_engine.DebuggedProcess, frame.ThreadContext.pc.Value);
if (toFunc != fromFunc)
{
return(Constants.S_FALSE);
}
string result = frame.EvaluateExpression("$pc=" + EngineUtils.AsAddr(addr, _engine.DebuggedProcess.Is64BitArch));
if (result != null)
{
_engine.DebuggedProcess.ThreadCache.MarkDirty();
return(Constants.S_OK);
}
return(Constants.S_FALSE);
}
// Retrieves a list of the stack frames for this thread.
// For the sample engine, enumerating the stack frames requires walking the callstack in the debuggee for this thread
// and coverting that to an implementation of IEnumDebugFrameInfo2.
// Real engines will most likely want to cache this information to avoid recomputing it each time it is asked for,
// and or construct it on demand instead of walking the entire stack.
int IDebugThread2.EnumFrameInfo(enum_FRAMEINFO_FLAGS dwFieldSpec, uint nRadix, out IEnumDebugFrameInfo2 enumObject)
{
enumObject = null;
try
{
// get the thread's stack frames
System.Collections.Generic.List <ThreadContext> stackFrames = null;
_engine.DebuggedProcess.WorkerThread.RunOperation(async() => stackFrames = await _engine.DebuggedProcess.ThreadCache.StackFrames(_debuggedThread));
int numStackFrames = stackFrames != null ? stackFrames.Count : 0;
FRAMEINFO[] frameInfoArray;
if (numStackFrames == 0)
{
// failed to walk any frames. Return an empty stack.
frameInfoArray = new FRAMEINFO[0];
}
else
{
uint low = stackFrames[0].Level;
uint high = stackFrames[stackFrames.Count - 1].Level;
FilterUnknownFrames(stackFrames);
numStackFrames = stackFrames.Count;
frameInfoArray = new FRAMEINFO[numStackFrames];
List <ArgumentList> parameters = null;
if ((dwFieldSpec & enum_FRAMEINFO_FLAGS.FIF_FUNCNAME_ARGS) != 0)
{
_engine.DebuggedProcess.WorkerThread.RunOperation(async() => parameters = await _engine.DebuggedProcess.GetParameterInfoOnly(this, (dwFieldSpec & enum_FRAMEINFO_FLAGS.FIF_FUNCNAME_ARGS_VALUES) != 0,
(dwFieldSpec & enum_FRAMEINFO_FLAGS.FIF_FUNCNAME_ARGS_TYPES) != 0, low, high));
}
for (int i = 0; i < numStackFrames; i++)
{
var p = parameters != null?parameters.Find((ArgumentList t) => t.Item1 == stackFrames[i].Level) : null;
AD7StackFrame frame = new AD7StackFrame(_engine, this, stackFrames[i]);
frame.SetFrameInfo(dwFieldSpec, out frameInfoArray[i], p != null ? p.Item2 : null);
}
}
enumObject = new AD7FrameInfoEnum(frameInfoArray);
return(Constants.S_OK);
}
catch (MIException e)
{
return(e.HResult);
}
catch (Exception e)
{
return(EngineUtils.UnexpectedException(e));
}
}
// Determines whether the next statement can be set to the given stack frame and code context.
int IDebugThread2.CanSetNextStatement(IDebugStackFrame2 stackFrame, IDebugCodeContext2 codeContext)
{
ulong addr = ((AD7MemoryAddress)codeContext).Address;
AD7StackFrame frame = ((AD7StackFrame)stackFrame);
if (frame.ThreadContext.Level != 0 || frame.Thread != this || !frame.ThreadContext.pc.HasValue)
{
return(Constants.S_FALSE);
}
if (addr == frame.ThreadContext.pc)
{
return(Constants.S_OK);
}
string toFunc = EngineUtils.GetAddressDescription(_engine.DebuggedProcess, addr);
string fromFunc = EngineUtils.GetAddressDescription(_engine.DebuggedProcess, frame.ThreadContext.pc.Value);
if (toFunc != fromFunc)
{
return(Constants.S_FALSE);
}
return(Constants.S_OK);
}
// Determines whether the next statement can be set to the given stack frame and code context.
int IDebugThread2.CanSetNextStatement(IDebugStackFrame2 stackFrame, IDebugCodeContext2 codeContext)
{
// CLRDBG TODO: This implementation should be changed to compare the method token
ulong addr = ((AD7MemoryAddress)codeContext).Address;
AD7StackFrame frame = ((AD7StackFrame)stackFrame);
if (frame.ThreadContext.Level != 0 || frame.Thread != this || !frame.ThreadContext.pc.HasValue || _engine.DebuggedProcess.MICommandFactory.Mode == MIMode.Clrdbg)
{
return(Constants.S_FALSE);
}
if (addr == frame.ThreadContext.pc)
{
return(Constants.S_OK);
}
string toFunc = EngineUtils.GetAddressDescription(_engine.DebuggedProcess, addr);
string fromFunc = EngineUtils.GetAddressDescription(_engine.DebuggedProcess, frame.ThreadContext.pc.Value);
if (toFunc != fromFunc)
{
return(Constants.S_FALSE);
}
return(Constants.S_OK);
}
// Retrieves a list of the stack frames for this thread.
// For the sample engine, enumerating the stack frames requires walking the callstack in the debuggee for this thread
// and coverting that to an implementation of IEnumDebugFrameInfo2.
// Real engines will most likely want to cache this information to avoid recomputing it each time it is asked for,
// and or construct it on demand instead of walking the entire stack.
int IDebugThread2.EnumFrameInfo(enum_FRAMEINFO_FLAGS dwFieldSpec, uint nRadix, out IEnumDebugFrameInfo2 enumObject)
{
enumObject = null;
try
{
// get the thread's stack frames
System.Collections.Generic.List<ThreadContext> stackFrames = null;
_engine.DebuggedProcess.WorkerThread.RunOperation(async () => stackFrames = await _engine.DebuggedProcess.ThreadCache.StackFrames(_debuggedThread));
int numStackFrames = stackFrames != null ? stackFrames.Count : 0;
FRAMEINFO[] frameInfoArray;
if (numStackFrames == 0)
{
// failed to walk any frames. Return an empty stack.
frameInfoArray = new FRAMEINFO[0];
}
else
{
uint low = stackFrames[0].Level;
uint high = stackFrames[stackFrames.Count - 1].Level;
FilterUnknownFrames(stackFrames);
numStackFrames = stackFrames.Count;
frameInfoArray = new FRAMEINFO[numStackFrames];
List<ArgumentList> parameters = null;
if ((dwFieldSpec & enum_FRAMEINFO_FLAGS.FIF_FUNCNAME_ARGS) != 0)
{
_engine.DebuggedProcess.WorkerThread.RunOperation(async () => parameters = await _engine.DebuggedProcess.GetParameterInfoOnly(this, (dwFieldSpec & enum_FRAMEINFO_FLAGS.FIF_FUNCNAME_ARGS_VALUES) != 0,
(dwFieldSpec & enum_FRAMEINFO_FLAGS.FIF_FUNCNAME_ARGS_TYPES) != 0, low, high));
}
for (int i = 0; i < numStackFrames; i++)
{
var p = parameters != null ? parameters.Find((ArgumentList t) => t.Item1 == stackFrames[i].Level) : null;
AD7StackFrame frame = new AD7StackFrame(_engine, this, stackFrames[i]);
frame.SetFrameInfo(dwFieldSpec, out frameInfoArray[i], p != null ? p.Item2 : null);
}
}
enumObject = new AD7FrameInfoEnum(frameInfoArray);
return Constants.S_OK;
}
catch (MIException e)
{
return e.HResult;
}
catch (Exception e)
{
return EngineUtils.UnexpectedException(e);
}
}