// Does the real work for an IL step.
// fStepIn - true if step in; else false for step-over.
// fVerbose - true if we should print out verbose diagnostic information.
public static void ILStepWorker(bool stepIn, bool isVerbose, string args)
{
if ((args != null) && (args.Trim().Length > 0))
{
throw new MDbgShellException("no arguments expected.");
}
// Do an IL-level step by single-stepping native code until our IL IP changes.
MDbgProcess proc = GuiExtension.Shell.Debugger.Processes.Active;
CorFrame curFrame = proc.Threads.Active.CurrentFrame.CorFrame;
uint ipNative;
uint offsetStart;
uint offsetNew;
ulong oldStackStart;
ulong oldStackEnd;
ulong newStackStart;
ulong newStackEnd;
CorDebugMappingResult result;
curFrame.GetIP(out offsetStart, out result);
curFrame.GetStackRange(out oldStackStart, out oldStackEnd);
curFrame.GetNativeIP(out ipNative);
if (isVerbose)
{
WriteOutput(String.Format(" IL step starting at offset IL_{0:x}, N=0x{1:x}, frame=({2:x},{3:x})",
offsetStart, ipNative, oldStackStart, oldStackEnd));
}
// We'll just do native single-steps until our IL ip changes.
while (true)
{
// Single step native code.
if (stepIn)
{
proc.StepInto(true).WaitOne();
}
else
{
proc.StepOver(true).WaitOne();
}
// Since we continued the process, our old frame becomes invalid and we need to get a new one.
curFrame = proc.Threads.Active.CurrentFrame.CorFrame;
curFrame.GetStackRange(out newStackStart, out newStackEnd);
if ((newStackStart != oldStackStart) || (newStackEnd != oldStackEnd))
{
// We're in a new frame. Maybe from step-in or step-out.
if (isVerbose)
{
WriteOutput(String.Format(" IL step stopping at new frame =({0:x},{1:x})", newStackStart, newStackEnd));
}
break;
}
curFrame.GetIP(out offsetNew, out result);
curFrame.GetNativeIP(out ipNative);
if ((offsetNew == offsetStart) && (proc.StopReason.GetType() == typeof(StepCompleteStopReason)))
{
if (isVerbose)
{
WriteOutput(String.Format(" IL step continuing. N=0x{0:x}", ipNative));
}
continue;
}
if (isVerbose)
{
WriteOutput(String.Format(" IL step complete at IL_{0:x}", offsetNew));
}
break;
}
}
internal static StackFrame CreateFrame(CorDebuggerSession session, CorFrame frame)
{
// TODO: Fix remaining.
uint address = 0;
//string typeFQN;
//string typeFullName;
string addressSpace = "";
string file = "";
int line = 0;
int column = 0;
string method = "";
string lang = "";
string module = "";
string type = "";
bool hasDebugInfo = false;
bool hidden = false;
bool external = true;
if (frame.FrameType == CorFrameType.ILFrame)
{
if (frame.Function != null)
{
module = frame.Function.Module.Name;
CorMetadataImport importer = new CorMetadataImport(frame.Function.Module);
MethodInfo mi = importer.GetMethodInfo(frame.Function.Token);
method = mi.DeclaringType.FullName + "." + mi.Name;
type = mi.DeclaringType.FullName;
addressSpace = mi.Name;
ISymbolReader reader = session.GetReaderForModule(frame.Function.Module.Name);
if (reader != null)
{
ISymbolMethod met = reader.GetMethod(new SymbolToken(frame.Function.Token));
if (met != null)
{
CorDebugMappingResult mappingResult;
frame.GetIP(out address, out mappingResult);
SequencePoint prevSp = null;
foreach (SequencePoint sp in met.GetSequencePoints())
{
if (sp.Offset > address)
{
break;
}
prevSp = sp;
}
if (prevSp != null)
{
line = prevSp.Line;
column = prevSp.Offset;
file = prevSp.Document.URL;
address = (uint)prevSp.Offset;
}
}
}
// FIXME: Still steps into.
//hidden = mi.GetCustomAttributes (true).Any (v => v is System.Diagnostics.DebuggerHiddenAttribute);
}
lang = "Managed";
hasDebugInfo = true;
}
else if (frame.FrameType == CorFrameType.NativeFrame)
{
frame.GetNativeIP(out address);
method = "<Unknown>";
lang = "Native";
}
else if (frame.FrameType == CorFrameType.InternalFrame)
{
switch (frame.InternalFrameType)
{
case CorDebugInternalFrameType.STUBFRAME_M2U: method = "[Managed to Native Transition]"; break;
case CorDebugInternalFrameType.STUBFRAME_U2M: method = "[Native to Managed Transition]"; break;
case CorDebugInternalFrameType.STUBFRAME_LIGHTWEIGHT_FUNCTION: method = "[Lightweight Method Call]"; break;
case CorDebugInternalFrameType.STUBFRAME_APPDOMAIN_TRANSITION: method = "[Application Domain Transition]"; break;
case CorDebugInternalFrameType.STUBFRAME_FUNC_EVAL: method = "[Function Evaluation]"; break;
}
}
if (method == null)
{
method = "<Unknown>";
}
var loc = new SourceLocation(method, file, line, column);
return(new StackFrame((long)address, addressSpace, loc, lang, external, hasDebugInfo, hidden, null, null));
}
internal static StackFrame CreateFrame(CorDebuggerSession session, CorFrame frame)
{
uint address = 0;
string addressSpace = "";
string file = "";
int line = 0;
int endLine = 0;
int column = 0;
int endColumn = 0;
string method = "[Unknown]";
string lang = "";
string module = "";
string type = "";
bool hasDebugInfo = false;
bool hidden = false;
bool external = true;
if (frame.FrameType == CorFrameType.ILFrame)
{
if (frame.Function != null)
{
module = frame.Function.Module.Name;
CorMetadataImport importer = new CorMetadataImport(frame.Function.Module);
MethodInfo mi = importer.GetMethodInfo(frame.Function.Token);
var declaringType = mi.DeclaringType;
if (declaringType != null)
{
method = declaringType.FullName + "." + mi.Name;
type = declaringType.FullName;
}
else
{
method = mi.Name;
}
addressSpace = mi.Name;
var sp = GetSequencePoint(session, frame);
if (sp != null)
{
line = sp.StartLine;
column = sp.StartColumn;
endLine = sp.EndLine;
endColumn = sp.EndColumn;
file = sp.Document.URL;
address = (uint)sp.Offset;
}
if (session.IsExternalCode(file))
{
external = true;
}
else
{
if (session.Options.ProjectAssembliesOnly)
{
external = mi.GetCustomAttributes(true).Any(v =>
v is System.Diagnostics.DebuggerHiddenAttribute ||
v is System.Diagnostics.DebuggerNonUserCodeAttribute);
}
else
{
external = mi.GetCustomAttributes(true).Any(v =>
v is System.Diagnostics.DebuggerHiddenAttribute);
}
}
hidden = mi.GetCustomAttributes(true).Any(v => v is System.Diagnostics.DebuggerHiddenAttribute);
}
lang = "Managed";
hasDebugInfo = true;
}
else if (frame.FrameType == CorFrameType.NativeFrame)
{
frame.GetNativeIP(out address);
method = "[Native frame]";
lang = "Native";
}
else if (frame.FrameType == CorFrameType.InternalFrame)
{
switch (frame.InternalFrameType)
{
case CorDebugInternalFrameType.STUBFRAME_M2U:
method = "[Managed to Native Transition]";
break;
case CorDebugInternalFrameType.STUBFRAME_U2M:
method = "[Native to Managed Transition]";
break;
case CorDebugInternalFrameType.STUBFRAME_LIGHTWEIGHT_FUNCTION:
method = "[Lightweight Method Call]";
break;
case CorDebugInternalFrameType.STUBFRAME_APPDOMAIN_TRANSITION:
method = "[Application Domain Transition]";
break;
case CorDebugInternalFrameType.STUBFRAME_FUNC_EVAL:
method = "[Function Evaluation]";
break;
}
}
var loc = new SourceLocation(method, file, line, column, endLine, endColumn);
return(new StackFrame(address, addressSpace, loc, lang, external, hasDebugInfo, hidden, module, type));
}
internal static StackFrame CreateFrame(CorDebuggerSession session, CorFrame frame)
{
uint address = 0;
string file = "";
int line = 0;
string method = "";
string lang = "";
string module = "";
if (frame.FrameType == CorFrameType.ILFrame)
{
if (frame.Function != null)
{
module = frame.Function.Module.Name;
CorMetadataImport importer = new CorMetadataImport(frame.Function.Module);
MethodInfo mi = importer.GetMethodInfo(frame.Function.Token);
method = mi.DeclaringType.FullName + "." + mi.Name;
ISymbolReader reader = session.GetReaderForModule(frame.Function.Module.Name);
if (reader != null)
{
ISymbolMethod met = reader.GetMethod(new SymbolToken(frame.Function.Token));
if (met != null)
{
uint offset;
CorDebugMappingResult mappingResult;
frame.GetIP(out offset, out mappingResult);
SequencePoint prevSp = null;
foreach (SequencePoint sp in met.GetSequencePoints())
{
if (sp.Offset > offset)
{
break;
}
prevSp = sp;
}
if (prevSp != null)
{
line = prevSp.Line;
file = prevSp.Document.URL;
}
}
}
}
lang = "Managed";
}
else if (frame.FrameType == CorFrameType.NativeFrame)
{
frame.GetNativeIP(out address);
method = "<Unknown>";
lang = "Native";
}
else if (frame.FrameType == CorFrameType.InternalFrame)
{
switch (frame.InternalFrameType)
{
case CorDebugInternalFrameType.STUBFRAME_M2U: method = "[Managed to Native Transition]"; break;
case CorDebugInternalFrameType.STUBFRAME_U2M: method = "[Native to Managed Transition]"; break;
case CorDebugInternalFrameType.STUBFRAME_LIGHTWEIGHT_FUNCTION: method = "[Lightweight Method Call]"; break;
case CorDebugInternalFrameType.STUBFRAME_APPDOMAIN_TRANSITION: method = "[Application Domain Transition]"; break;
case CorDebugInternalFrameType.STUBFRAME_FUNC_EVAL: method = "[Function Evaluation]"; break;
}
}
if (method == null)
{
method = "<Unknown>";
}
return(new StackFrame((long)address, module, method, file, line, lang));
}