private SourcecodeSegment SetIP(bool simulate, string filename, int line, int column)
{
process.AssertPaused();
SourcecodeSegment segment = SourcecodeSegment.Resolve(this.MethodInfo.DebugModule, filename, null, line, column);
if (segment != null && segment.CorFunction.GetToken() == this.MethodInfo.MetadataToken)
{
try
{
if (simulate)
{
CorILFrame.CanSetIP((uint)segment.ILStart);
}
else
{
// Invalidates all frames and chains for the current thread
CorILFrame.SetIP((uint)segment.ILStart);
process.NotifyResumed(DebuggeeStateAction.Keep);
process.NotifyPaused(PausedReason.SetIP);
process.RaisePausedEvents();
}
}
catch
{
return(null);
}
return(segment);
}
return(null);
}
private void AsyncStep(bool stepIn)
{
if (this.MethodInfo.DebugModule.HasSymbols == false)
{
throw new DebuggerException("Unable to step. No symbols loaded.");
}
SourcecodeSegment nextSt = NextStatement;
if (nextSt == null)
{
throw new DebuggerException("Unable to step. Next statement not aviable");
}
if (stepIn)
{
Stepper stepInStepper = Stepper.StepIn(this, nextSt.StepRanges, "normal");
this.Thread.CurrentStepIn = stepInStepper;
Stepper clearCurrentStepIn = Stepper.StepOut(this, "clear current step in");
clearCurrentStepIn.StepComplete += delegate
{
if (this.Thread.CurrentStepIn == stepInStepper)
{
this.Thread.CurrentStepIn = null;
}
};
clearCurrentStepIn.Ignore = true;
}
else
{
Stepper.StepOver(this, nextSt.StepRanges, "normal");
}
AsyncContinue();
}
public string GetStackTrace(string formatSymbols, string formatNoSymbols)
{
StringBuilder stackTrace = new StringBuilder();
foreach (StackFrame stackFrame in this.GetCallstack(100))
{
SourcecodeSegment loc = stackFrame.NextStatement;
stackTrace.Append(" ");
if (loc != null)
{
stackTrace.AppendFormat(formatSymbols, stackFrame.MethodInfo.FullName, loc.Filename, loc.StartLine);
}
else
{
stackTrace.AppendFormat(formatNoSymbols, stackFrame.MethodInfo.FullName);
}
stackTrace.AppendLine();
}
return(stackTrace.ToString());
}
internal bool SetBreakpoint(Module module)
{
SourcecodeSegment segment = SourcecodeSegment.Resolve(module, FileName, CheckSum, Line, Column);
if (segment == null)
{
return(false);
}
originalLocation = segment;
ICorDebugFunctionBreakpoint corBreakpoint = segment.CorFunction.GetILCode().CreateBreakpoint((uint)segment.ILStart);
corBreakpoint.Activate(_enabled ? 1 : 0);
corBreakpoints.Add(corBreakpoint);
OnSet(new BreakpointEventArgs(this));
return(true);
}
/// <summary>
/// 'ILStart <= ILOffset <= ILEnd' and this range includes at least
/// the returned area of source code. (May incude some extra compiler generated IL too)
/// </summary>
internal static SourcecodeSegment Resolve(Module module, ICorDebugFunction corFunction, int offset)
{
ISymUnmanagedReader symReader = module.SymReader;
if (symReader == null)
{
return(null); // No symbols
}
ISymUnmanagedMethod symMethod;
try
{
symMethod = symReader.GetMethod(corFunction.GetToken());
}
catch (COMException)
{
// Can not find the method
// eg. Compiler generated constructors are not in symbol store
return(null);
}
if (symMethod == null)
{
return(null);
}
uint sequencePointCount = symMethod.GetSequencePointCount();
SequencePoint[] sequencePoints = symMethod.GetSequencePoints();
// Get i for which: offsets[i] <= offset < offsets[i + 1]
// or fallback to first element if offset < offsets[0]
for (int i = (int)sequencePointCount - 1; i >= 0; i--)
{ // backwards
if ((int)sequencePoints[i].Offset <= offset || i == 0)
{
// Set inforamtion about current IL range
int codeSize = (int)corFunction.GetILCode().GetSize();
int ilStart = (int)sequencePoints[i].Offset;
int ilEnd = (i + 1 < sequencePointCount) ? (int)sequencePoints[i + 1].Offset : codeSize;
// 0xFeeFee means "code generated by compiler"
// If we are in generated sequence use to closest real one instead,
// extend the ILStart and ILEnd to include the 'real' sequence
// Look ahead for 'real' sequence
while (i + 1 < sequencePointCount && sequencePoints[i].Line == 0xFeeFee)
{
i++;
ilEnd = (i + 1 < sequencePointCount) ? (int)sequencePoints[i + 1].Offset : codeSize;
}
// Look back for 'real' sequence
while (i - 1 >= 0 && sequencePoints[i].Line == 0xFeeFee)
{
i--;
ilStart = (int)sequencePoints[i].Offset;
}
// Wow, there are no 'real' sequences
if (sequencePoints[i].Line == 0xFeeFee)
{
return(null);
}
List <int> stepRanges = new List <int>();
for (int j = 0; j < sequencePointCount; j++)
{
// Step over compiler generated sequences and current statement
// 0xFeeFee means "code generated by compiler"
if (sequencePoints[j].Line == 0xFeeFee || j == i)
{
// Add start offset or remove last end (to connect two ranges into one)
if (stepRanges.Count > 0 && stepRanges[stepRanges.Count - 1] == sequencePoints[j].Offset)
{
stepRanges.RemoveAt(stepRanges.Count - 1);
}
else
{
stepRanges.Add((int)sequencePoints[j].Offset);
}
// Add end offset | handle last sequence point
if (j + 1 < sequencePointCount)
{
stepRanges.Add((int)sequencePoints[j + 1].Offset);
}
else
{
stepRanges.Add(codeSize);
}
}
}
SourcecodeSegment segment = new SourcecodeSegment();
segment.module = module;
segment.filename = GetFilenameFromSymDocument(module, sequencePoints[i].Document);
segment.checkSum = sequencePoints[i].Document.GetCheckSum();
segment.startLine = (int)sequencePoints[i].Line;
segment.startColumn = (int)sequencePoints[i].Column;
segment.endLine = (int)sequencePoints[i].EndLine;
segment.endColumn = (int)sequencePoints[i].EndColumn;
segment.corFunction = corFunction;
segment.ilStart = ilStart;
segment.ilEnd = ilEnd;
segment.stepRanges = stepRanges.ToArray();
// VB.NET sometimes produces temporary files which it then deletes
// (eg 17d14f5c-a337-4978-8281-53493378c1071.vb)
string filename = Path.GetFileName(segment.filename);
if (filename.Length == 40 && filename.EndsWith(".vb"))
{
bool guidName = true;
foreach (char c in filename.Substring(0, filename.Length - 3))
{
if (('0' <= c && c <= '9') ||
('a' <= c && c <= 'f') ||
('A' <= c && c <= 'F') ||
(c == '-'))
{
guidName = true;
}
else
{
guidName = false;
break;
}
}
if (guidName)
{
return(null);
}
}
return(segment);
}
}
return(null);
}
public static SourcecodeSegment Resolve(Module module, string fileName, byte[] checkSum, int line, int column)
{
// Do not use ISymUnmanagedReader.GetDocument! It is broken if two files have the same name
// Do not use ISymUnmanagedMethod.GetOffset! It sometimes returns negative offset
ISymUnmanagedReader symReader = module.SymReader;
if (symReader == null)
{
return(null); // No symbols
}
ISymUnmanagedDocument symDoc = GetSymDocumentFromFilename(module, fileName, checkSum);
if (symDoc == null)
{
return(null); // Document not found
}
ISymUnmanagedMethod symMethod;
try
{
uint validLine = symDoc.FindClosestLine((uint)line);
symMethod = symReader.GetMethodFromDocumentPosition(symDoc, (uint)validLine, (uint)column);
}
catch
{
return(null); //Not found
}
SequencePoint[] seqPoints = symMethod.GetSequencePoints();
Array.Sort(seqPoints);
if (seqPoints.Length == 0)
{
return(null);
}
if (line < seqPoints[0].Line)
{
return(null);
}
foreach (SequencePoint sqPoint in seqPoints)
{
if (sqPoint.Line == 0xFEEFEE)
{
continue;
}
// If the desired breakpoint position is before the end of the sequence point
if (line < sqPoint.EndLine || (line == sqPoint.EndLine && column < sqPoint.EndColumn))
{
SourcecodeSegment segment = new SourcecodeSegment();
segment.module = module;
segment.filename = symDoc.GetURL();
segment.checkSum = symDoc.GetCheckSum();
segment.startLine = (int)sqPoint.Line;
segment.startColumn = (int)sqPoint.Column;
segment.endLine = (int)sqPoint.EndLine;
segment.endColumn = (int)sqPoint.EndColumn;
segment.corFunction = module.CorModule.GetFunctionFromToken(symMethod.GetToken());
segment.ilStart = (int)sqPoint.Offset;
segment.ilEnd = (int)sqPoint.Offset;
segment.stepRanges = null;
return(segment);
}
}
return(null);
}
private SourcecodeSegment GetSegmentForOffet(int offset)
{
return(SourcecodeSegment.Resolve(this.MethodInfo.DebugModule, corFunction, offset));
}