public O2MDbgVariable(MDbgValue mdbgValue, string _parentType, string _assemblyName)
{
IsProperty = false;
parentType = _parentType;
assemblyName = _assemblyName;
name = mdbgValue.Name;
try
{
value = mdbgValue.GetStringValue(false);
}
catch (Exception ex)
{
DI.log.ex(ex, "in O2MDbgVariable(MDbgValue mdbgValue), while trying to get value for: " + mdbgValue.Name);
}
type = mdbgValue.TypeName;
complexType = mdbgValue.IsComplexType;
}
/// <summary>
/// Gets the specified Field.
/// </summary>
/// <param name="name">The Name of the Field to get.</param>
/// <returns>The Value of the specified Field.</returns>
public MDbgValue GetField(string name)
{
MDbgValue ret = null;
foreach (MDbgValue v in GetFields())
{
if (v.Name.Equals(name))
{
ret = v;
break;
}
}
if (ret == null)
{
DI.log.error("from MDbgEngine: Field '" + name + "' not found.");
}
return(ret);
}
/// <summary>
/// Gets Array Items. This function can be called only on one dimensional arrays.
/// </summary>
/// <returns>An array of the values for the Array Items.</returns>
public MDbgValue[] GetArrayItems()
{
if (!IsArrayType)
{
throw new MDbgValueException("Type is not array type");
}
CorDebug.CorValue value = Dereference(CorValue);
CorDebug.CorArrayValue av = value.CastToArrayValue();
int[] dims = av.GetDimensions();
Debug.Assert(dims != null);
var al = new ArrayList();
Debug.Assert(av.Rank == 1);
for (int i = 0; i < dims[0]; i++)
{
var v = new MDbgValue(Process, "[" + i + "]", av.GetElementAtPosition(i));
al.Add(v);
}
return((MDbgValue[])al.ToArray(typeof(MDbgValue)));
}
/// <summary>
/// Gets the Array Item for the specified indexes
/// </summary>
/// <param name="indexes">Which indexes to get the Array Item for.</param>
/// <returns>The Value for the given indexes.</returns>
public MDbgValue GetArrayItem(params int[] indexes)
{
if (!IsArrayType)
throw new MDbgValueException("Type is not array type");
CorDebug.CorValue value = Dereference(CorValue);
CorDebug.CorArrayValue av = value.CastToArrayValue();
Debug.Assert(av != null);
if (av.Rank != indexes.Length)
throw new MDbgValueException("Invalid number of dimensions.");
var sb = new StringBuilder("[");
for (int i = 0; i < indexes.Length; ++i)
{
if (i != 0)
sb.Append(",");
sb.Append(indexes[i]);
}
sb.Append("]");
var v = new MDbgValue(Process, sb.ToString(), av.GetElement(indexes));
return v;
}
/// <summary>
/// Gets Array Items. This function can be called only on one dimensional arrays.
/// </summary>
/// <returns>An array of the values for the Array Items.</returns>
public MDbgValue[] GetArrayItems()
{
if (!IsArrayType)
throw new MDbgValueException("Type is not array type");
CorDebug.CorValue value = Dereference(CorValue);
CorDebug.CorArrayValue av = value.CastToArrayValue();
int[] dims = av.GetDimensions();
Debug.Assert(dims != null);
var al = new ArrayList();
Debug.Assert(av.Rank == 1);
for (int i = 0; i < dims[0]; i++)
{
var v = new MDbgValue(Process, "[" + i + "]", av.GetElementAtPosition(i));
al.Add(v);
}
return (MDbgValue[]) al.ToArray(typeof (MDbgValue));
}
//////////////////////////////////////////////////////////////////////////////////
//
// Support for printing local printing variables
//
//////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Gets an Array of MDbgValues for the Active Local Vars in the given frame.
/// </summary>
/// <param name="managedFrame">The Frame to look in.</param>
/// <returns>The MDbgValue[] Active Local Valiables.</returns>
public MDbgValue[] GetActiveLocalVars(MDbgFrame managedFrame)
{
Debug.Assert(managedFrame != null);
if (managedFrame == null)
throw new ArgumentException();
CorFrame frame = managedFrame.CorFrame;
// we only support this, when the frame is our function
Debug.Assert(frame.FunctionToken == m_function.Token);
if (! (frame.FunctionToken == m_function.Token))
throw new ArgumentException();
EnsureIsUpToDate();
if (!m_haveSymbols)
{
// if we don't have symbols -- we'll print local variables as (loca1_0,local_1,local_2,...)
// to give them names consistent with ILasm.
int c = frame.GetLocalVariablesCount();
if (c < 0)
c = 0; // in case we cannot get locals,
// we'll hide them.
var locals = new MDbgValue[c];
for (int i = 0; i < c; ++i)
{
CorValue arg = null;
try
{
arg = frame.GetLocalVariable(i);
}
catch (COMException e)
{
if (e.ErrorCode != (int) HResult.CORDBG_E_IL_VAR_NOT_AVAILABLE)
throw;
}
locals[i] = new MDbgValue(m_module.Process, "local_" + (i), arg);
}
return locals;
}
uint ip;
CorDebugMappingResult mappingResult;
frame.GetIP(out ip, out mappingResult);
var al = new ArrayList();
ISymbolScope scope = SymMethod.RootScope;
AddLocalVariablesToList(frame, (int) ip, al, scope);
return (MDbgValue[]) al.ToArray(typeof (MDbgValue));
}
private string PrintObject(int indentLevel, CorDebug.CorObjectValue ov, int expandDepth, bool canDoFunceval)
{
Debug.Assert(expandDepth >= 0);
// Print generics-aware type.
string name = InternalUtil.PrintCorType(m_process, ov.ExactType);
var txt = new StringBuilder();
txt.Append(name);
if (expandDepth > 0)
{
// we gather the field info of the class before we do
// funceval since funceval requires running the debugger process
// and this in turn can cause GC and invalidate our references.
var expandedDescription = new StringBuilder();
if (IsComplexType)
{
foreach (MDbgValue v in GetFields())
{
expandedDescription.Append("\n").Append(IndentedString(indentLevel + 1, v.Name)).
Append("=").Append(IndentedBlock(indentLevel + 2,
v.GetStringValue(expandDepth - 1, false)));
}
}
if (ov.IsValueClass && canDoFunceval)
// we could display even values for real Objects, but we will just show
// "description" for valueclasses.
{
CorDebug.CorClass cls = ov.ExactType.Class;
CorMetadataImport importer = m_process.Modules.Lookup(cls.Module).Importer;
var mdType = importer.GetType(cls.Token) as MetadataType;
if (mdType.ReallyIsEnum)
{
txt.AppendFormat(" <{0}>", InternalGetEnumString(ov, mdType));
}
else if (m_process.IsRunning)
{
txt.Append(" <N/A during run>");
}
else
{
MDbgThread activeThread = m_process.Threads.Active;
CorDebug.CorValue thisValue;
CorDebug.CorHeapValue hv = ov.CastToHeapValue();
if (hv != null)
{
// we need to pass reference value.
CorDebug.CorHandleValue handle = hv.CreateHandle(CorDebugHandleType.HANDLE_WEAK_TRACK_RESURRECTION);
thisValue = handle;
}
else
{
thisValue = ov;
}
try
{
CorDebug.CorEval eval = m_process.Threads.Active.CorThread.CreateEval();
m_process.CorProcess.SetAllThreadsDebugState(CorDebugThreadState.THREAD_SUSPEND,
activeThread.CorThread);
MDbgFunction toStringFunc =
m_process.ResolveFunctionName(null, "System.Object", "ToString"
, thisValue.ExactType.Class.Module.Assembly.AppDomain);
Debug.Assert(toStringFunc != null);
// we should be always able to resolve ToString function.
eval.CallFunction(toStringFunc.CorFunction, new[] { thisValue });
m_process.Go();
do
{
m_process.StopEvent.WaitOne();
if (m_process.StopReason is EvalCompleteStopReason)
{
CorDebug.CorValue cv = eval.Result;
Debug.Assert(cv != null);
var mv = new MDbgValue(m_process, cv);
string valName = mv.GetStringValue(0);
// just purely for esthetical reasons we 'discard' "
if (valName.StartsWith("\"") && valName.EndsWith("\""))
{
valName = valName.Substring(1, valName.Length - 2);
}
txt.Append(" <").Append(valName).Append(">");
break;
}
if ((m_process.StopReason is ProcessExitedStopReason) ||
(m_process.StopReason is EvalExceptionStopReason))
{
txt.Append(" <N/A cannot evaluate>");
break;
}
// hitting bp or whatever should not matter -- we need to ignore it
m_process.Go();
} while (true);
}
catch (COMException e)
{
// Ignore canot copy a VC class error - Can't copy a VC with object refs in it.
if (e.ErrorCode != (int)CorDebug.HResult.CORDBG_E_OBJECT_IS_NOT_COPYABLE_VALUE_CLASS)
{
throw;
}
}
finally
{
// we need to resume all the threads that we have suspended no matter what.
m_process.CorProcess.SetAllThreadsDebugState(CorDebugThreadState.THREAD_RUN,
activeThread.CorThread);
}
}
}
txt.Append(expandedDescription.ToString());
}
return(txt.ToString());
}
public static void UnwrapGCHandleCmd(string arguments)
{
var ap = new ArgParser(arguments);
if (ap.Count != 1)
{
WriteError(
"Wrong arguments, should be name or address of a \"System.Runtime.InteropServices.GCHandle\" object.");
return;
}
long handleAdd = 0;
// First try to resolve the argument as a variable in the current frame
MDbgValue var = Debugger.Processes.Active.ResolveVariable(
ap.AsString(0),
Debugger.Processes.Active.Threads.Active.CurrentFrame);
if (var != null)
{
if (var.TypeName != "System.Runtime.InteropServices.GCHandle")
{
WriteError("Variable is not of type \"System.Runtime.InteropServices.GCHandle\".");
return;
}
foreach (MDbgValue field in var.GetFields())
{
if (field.Name == "m_handle")
{
handleAdd = Int64.Parse(field.GetStringValue(0));
break;
}
}
}
else
{
// Trying to resolve as a raw address now
try
{
handleAdd = ap.GetArgument(0).AsAddress;
}
catch (FormatException)
{
WriteError("Couldn't recognize the argument as a variable name or address");
return;
}
}
var add = new IntPtr(handleAdd);
CorReferenceValue result;
try
{
result = Debugger.Processes.Active.CorProcess.GetReferenceValueFromGCHandle(add);
}
catch (COMException e)
{
if (e.ErrorCode == (int) HResult.CORDBG_E_BAD_REFERENCE_VALUE)
{
WriteError("Invalid handle address.");
return;
}
else
{
throw;
}
}
CorValue v = result.Dereference();
var mv = new MDbgValue(Debugger.Processes.Active, v);
if (mv.IsComplexType)
{
WriteOutput(string.Format("GCHandle to <{0}>",
InternalUtil.PrintCorType(Debugger.Processes.Active, v.ExactType)));
// now print fields as well
foreach (MDbgValue f in mv.GetFields())
WriteOutput(" " + f.Name + "=" + f.GetStringValue(0));
}
else
{
WriteOutput(string.Format("GCHandle to {0}", mv.GetStringValue(0)));
}
}
// Helper to parse args to get a value for a GC handle.
//
// Syntax for gchandle. Ultimately need to compute an address.
// gchandle(var) where var is System.Runtime.InteropServices.GCHandle, address=var.m_handle
// gchandle(integer) where address =integer
// gchandle(var, offset) where var is a valuetype, then we do address= (IntPtr*) (&var + offset*sizeof(IntPtr))
internal MDbgValue ParseGCHandleArgs(string stName, string[] args, MDbgFrame scope)
{
if (args.Length != 1 && args.Length != 2)
{
throw new MDbgException("Wrong number of args to gchandle function.");
}
string stVarBase = args[0];
MDbgValue varBase = ResolveVariable(stVarBase, scope);
//MDbgValue varBase = Shell.ExpressionParser.ParseExpression(stVarBase,this, scope);
IntPtr add;
if (args.Length == 2)
{
if (varBase == null)
{
throw new MDbgException("Can't resolve var '" + stVarBase + "'");
}
// Form: gchandle(var, offset)
CorGenericValue gv = varBase.CorValue.CastToGenericValue();
IntPtr[] ar = null;
if (gv != null)
{
ar = gv.GetValueAsIntPtrArray();
}
if (ar == null)
{
throw new MDbgException("Variable '" + stVarBase + "' is not a value type.");
}
int offset = Int32.Parse(args[1], CultureInfo.InvariantCulture);
add = ar[offset];
}
else
{
if (varBase != null)
{
add = IntPtr.Zero;
// Form: gchandle(var)
if (varBase.TypeName != "System.Runtime.InteropServices.GCHandle")
{
throw new MDbgException("Variable is not of type \"System.Runtime.InteropServices.GCHandle\".");
}
foreach (MDbgValue field in varBase.GetFields())
{
if (field.Name == "m_handle")
{
int handleAddress = Int32.Parse(field.GetStringValue(0));
add = new IntPtr(handleAddress);
break;
}
}
}
else
{
// Trying to resolve as a raw address now
// form: gchandle(integer)
int handleAddress;
if (!Int32.TryParse(stVarBase, out handleAddress))
{
throw new MDbgException("Couldn't recognize the argument as a variable name or address");
}
add = new IntPtr(handleAddress);
}
}
CorReferenceValue result;
try
{
result = CorProcess.GetReferenceValueFromGCHandle(add);
}
catch (COMException e)
{
if (e.ErrorCode == (int) HResult.CORDBG_E_BAD_REFERENCE_VALUE)
{
throw new MDbgException("Invalid handle address.");
}
else
{
throw;
}
}
var var = new MDbgValue(this, stName, result);
return var;
}
public O2MDbgVariable(MDbgValue mdbgValue, O2MDbgVariable _parentVariable)
: this(mdbgValue, _parentVariable.parentType, _parentVariable.assemblyName)
{
parentVariable = _parentVariable;
}
public static void PrintCmd(string arguments, O2Thread.FuncVoidT1<string> o2Callback)
{
const string debuggerVarsOpt = "d";
const string noFuncevalOpt = "nf";
const string expandDepthOpt = "r";
var ap = new ArgParser(arguments, debuggerVarsOpt + ";" + noFuncevalOpt + ";" + expandDepthOpt + ":1");
bool canDoFunceval = ! ap.OptionPassed(noFuncevalOpt);
int? expandDepth = null; // we use optional here because
// different codes bellow has different
// default values.
if (ap.OptionPassed(expandDepthOpt))
{
expandDepth = ap.GetOption(expandDepthOpt).AsInt;
if (expandDepth < 0)
throw new MDbgShellException("Depth cannot be negative.");
}
MDbgFrame frame = CommandBase.Debugger.Processes.Active.Threads.Active.CurrentFrame;
if (ap.OptionPassed(debuggerVarsOpt))
{
// let's print all debugger variables
MDbgProcess p = CommandBase.Debugger.Processes.Active;
foreach (MDbgDebuggerVar dv in p.DebuggerVars)
{
var v = new MDbgValue(p, dv.CorValue);
CommandBase.WriteOutput(dv.Name + "=" + v.GetStringValue(expandDepth == null ? 0 : (int) expandDepth,
canDoFunceval));
}
}
else
{
if (ap.Count == 0)
{
// get all active variables
MDbgFunction f = frame.Function;
var vars = new ArrayList();
MDbgValue[] vals = f.GetActiveLocalVars(frame);
if (vals != null)
{
vars.AddRange(vals);
}
vals = f.GetArguments(frame);
if (vals != null)
{
vars.AddRange(vals);
}
foreach (MDbgValue v in vars)
{
CommandBase.WriteOutput(v.Name + "=" + v.GetStringValue(expandDepth == null ? 0 : (int) expandDepth,
canDoFunceval));
}
}
else
{
// user requested printing of specific variables
for (int j = 0; j < ap.Count; ++j)
{
MDbgValue var = CommandBase.Debugger.Processes.Active.ResolveVariable(ap.AsString(j), frame);
if (var != null)
{
CommandBase.WriteOutput(ap.AsString(j) + "=" + var.GetStringValue(expandDepth == null
? 1
: (int) expandDepth, canDoFunceval));
}
else
{
throw new MDbgShellException("Variable not found");
}
}
}
}
}
public static void FuncEvalCmd(string arguments, IMDbgShell Shell, O2Thread.FuncVoidT1<string> execOnEval)
{
try
{
var activeProcess = DI.o2MDbg.ActiveProcess; //Debugger.Processes.Active
const string appDomainOption = "ad";
var ap = new ArgParser(arguments, appDomainOption + ":1");
if (!(ap.Count >= 1))
{
throw new MDbgShellException("Not Enough arguments");
}
// Currently debugger picks first function -- we have not implementing resolving overloaded functions.
// Good example is Console.WriteLine -- there is 18 different types:
// 1) [06000575] Void WriteLine()
// 2) [06000576] Void WriteLine(Boolean)
// 3) [06000577] Void WriteLine(Char)
// 4) [06000578] Void WriteLine(Char[])
// 5) [06000579] Void WriteLine(Char[], Int32, Int32)
// 6) [0600057a] Void WriteLine(Decimal)
// 7) [0600057b] Void WriteLine(Double)
// 8) [0600057c] Void WriteLine(Single)
// 9) [0600057d] Void WriteLine(Int32)
// 10) [0600057e] Void WriteLine(UInt32)
// 11) [0600057f] Void WriteLine(Int64)
// 12) [06000580] Void WriteLine(UInt64)
// 13) [06000581] Void WriteLine(Object)
// 14) [06000582] Void WriteLine(String)
// 15) [06000583] Void WriteLine(String, Object)
// 16) [06000584] Void WriteLine(String, Object, Object)
// 17) [06000585] Void WriteLine(String, Object, Object, Object)
// 18) [06000586] Void WriteLine(String, Object, Object, Object, Object, ...)
// 19) [06000587] Void WriteLine(String, Object[])
//
CorAppDomain appDomain;
if (ap.OptionPassed(appDomainOption))
{
MDbgAppDomain ad = activeProcess.AppDomains[ap.GetOption(appDomainOption).AsInt];
if (ad == null)
{
throw new ArgumentException("Invalid Appdomain Number");
}
appDomain = ad.CorAppDomain;
}
else
{
appDomain = activeProcess.Threads.Active.CorThread.AppDomain;
}
MDbgFunction func = activeProcess.ResolveFunctionNameFromScope(ap.AsString(0), appDomain);
if (null == func)
{
throw new MDbgShellException(String.Format(CultureInfo.InvariantCulture, "Could not resolve {0}",
new Object[] {ap.AsString(0)}));
}
CorEval eval = activeProcess.Threads.Active.CorThread.CreateEval();
// Get Variables
var vars = new ArrayList();
String arg;
for (int i = 1; i < ap.Count; i++)
{
arg = ap.AsString(i);
CorValue v = Shell.ExpressionParser.ParseExpression2(arg, activeProcess,
activeProcess.Threads.Active.
CurrentFrame);
if (v == null)
{
throw new MDbgShellException("Cannot resolve expression or variable " + ap.AsString(i));
}
if (v is CorGenericValue)
{
vars.Add(v);
}
else
{
CorHeapValue hv = v.CastToHeapValue();
if (hv != null)
{
// we cannot pass directly heap values, we need to pass reference to heap valus
CorReferenceValue myref =
eval.CreateValue(CorElementType.ELEMENT_TYPE_CLASS, null).CastToReferenceValue();
myref.Value = hv.Address;
vars.Add(myref);
}
else
{
vars.Add(v);
}
}
}
eval.CallFunction(func.CorFunction, (CorValue[]) vars.ToArray(typeof (CorValue)));
activeProcess.Go().WaitOne();
// now display result of the funceval
if (!(activeProcess.StopReason is EvalCompleteStopReason))
{
// we could have received also EvalExceptionStopReason but it's derived from EvalCompleteStopReason
Shell.IO.WriteOutput(MDbgOutputConstants.StdOutput,
"Func-eval not fully completed and debuggee has stopped");
Shell.IO.WriteOutput(MDbgOutputConstants.StdOutput,
"Result of funceval won't be printed when finished.");
}
else
{
eval = (activeProcess.StopReason as EvalCompleteStopReason).Eval;
Debug.Assert(eval != null);
CorValue cv = eval.Result;
if (cv != null)
{
var mv = new MDbgValue(activeProcess, cv);
if (execOnEval != null) // if this callback is set then execute
{
execOnEval(mv.GetStringValue(1));
return;
}
Shell.IO.WriteOutput(MDbgOutputConstants.StdOutput, "result = " + mv.GetStringValue(1));
if (cv.CastToReferenceValue() != null)
if (activeProcess.DebuggerVars.SetEvalResult(cv))
Shell.IO.WriteOutput(MDbgOutputConstants.StdOutput, "results saved to $result");
}
}
}
catch (Exception ex)
{
DI.log.ex(ex, "in FuncEvalCmd");
}
if (execOnEval != null) // need to call this here so that the sync AutoResetEvent is set
execOnEval(null);
}
//////////////////////////////////////////////////////////////////////////////////
//
// Support for printing local printing variables
//
//////////////////////////////////////////////////////////////////////////////////
/// <summary>
/// Gets an Array of MDbgValues for the Active Local Vars in the given frame.
/// </summary>
/// <param name="managedFrame">The Frame to look in.</param>
/// <returns>The MDbgValue[] Active Local Valiables.</returns>
public MDbgValue[] GetActiveLocalVars(MDbgFrame managedFrame)
{
Debug.Assert(managedFrame != null);
if (managedFrame == null)
{
throw new ArgumentException();
}
CorFrame frame = managedFrame.CorFrame;
// we only support this, when the frame is our function
Debug.Assert(frame.FunctionToken == m_function.Token);
if (!(frame.FunctionToken == m_function.Token))
{
throw new ArgumentException();
}
EnsureIsUpToDate();
if (!m_haveSymbols)
{
// if we don't have symbols -- we'll print local variables as (loca1_0,local_1,local_2,...)
// to give them names consistent with ILasm.
int c = frame.GetLocalVariablesCount();
if (c < 0)
{
c = 0; // in case we cannot get locals,
}
// we'll hide them.
var locals = new MDbgValue[c];
for (int i = 0; i < c; ++i)
{
CorValue arg = null;
try
{
arg = frame.GetLocalVariable(i);
}
catch (COMException e)
{
if (e.ErrorCode != (int)HResult.CORDBG_E_IL_VAR_NOT_AVAILABLE)
{
throw;
}
}
locals[i] = new MDbgValue(m_module.Process, "local_" + (i), arg);
}
return(locals);
}
uint ip;
CorDebugMappingResult mappingResult;
frame.GetIP(out ip, out mappingResult);
var al = new ArrayList();
ISymbolScope scope = SymMethod.RootScope;
AddLocalVariablesToList(frame, (int)ip, al, scope);
return((MDbgValue[])al.ToArray(typeof(MDbgValue)));
}
private string PrintObject(int indentLevel, CorDebug.CorObjectValue ov, int expandDepth, bool canDoFunceval)
{
Debug.Assert(expandDepth >= 0);
// Print generics-aware type.
string name = InternalUtil.PrintCorType(m_process, ov.ExactType);
var txt = new StringBuilder();
txt.Append(name);
if (expandDepth > 0)
{
// we gather the field info of the class before we do
// funceval since funceval requires running the debugger process
// and this in turn can cause GC and invalidate our references.
var expandedDescription = new StringBuilder();
if (IsComplexType)
{
foreach (MDbgValue v in GetFields())
{
expandedDescription.Append("\n").Append(IndentedString(indentLevel + 1, v.Name)).
Append("=").Append(IndentedBlock(indentLevel + 2,
v.GetStringValue(expandDepth - 1, false)));
}
}
if (ov.IsValueClass && canDoFunceval)
// we could display even values for real Objects, but we will just show
// "description" for valueclasses.
{
CorDebug.CorClass cls = ov.ExactType.Class;
CorMetadataImport importer = m_process.Modules.Lookup(cls.Module).Importer;
var mdType = importer.GetType(cls.Token) as MetadataType;
if (mdType.ReallyIsEnum)
{
txt.AppendFormat(" <{0}>", InternalGetEnumString(ov, mdType));
}
else if (m_process.IsRunning)
txt.Append(" <N/A during run>");
else
{
MDbgThread activeThread = m_process.Threads.Active;
CorDebug.CorValue thisValue;
CorDebug.CorHeapValue hv = ov.CastToHeapValue();
if (hv != null)
{
// we need to pass reference value.
CorDebug.CorHandleValue handle = hv.CreateHandle(CorDebugHandleType.HANDLE_WEAK_TRACK_RESURRECTION);
thisValue = handle;
}
else
thisValue = ov;
try
{
CorDebug.CorEval eval = m_process.Threads.Active.CorThread.CreateEval();
m_process.CorProcess.SetAllThreadsDebugState(CorDebugThreadState.THREAD_SUSPEND,
activeThread.CorThread);
MDbgFunction toStringFunc =
m_process.ResolveFunctionName(null, "System.Object", "ToString"
, thisValue.ExactType.Class.Module.Assembly.AppDomain);
Debug.Assert(toStringFunc != null);
// we should be always able to resolve ToString function.
eval.CallFunction(toStringFunc.CorFunction, new[] {thisValue});
m_process.Go();
do
{
m_process.StopEvent.WaitOne();
if (m_process.StopReason is EvalCompleteStopReason)
{
CorDebug.CorValue cv = eval.Result;
Debug.Assert(cv != null);
var mv = new MDbgValue(m_process, cv);
string valName = mv.GetStringValue(0);
// just purely for esthetical reasons we 'discard' "
if (valName.StartsWith("\"") && valName.EndsWith("\""))
valName = valName.Substring(1, valName.Length - 2);
txt.Append(" <").Append(valName).Append(">");
break;
}
if ((m_process.StopReason is ProcessExitedStopReason) ||
(m_process.StopReason is EvalExceptionStopReason))
{
txt.Append(" <N/A cannot evaluate>");
break;
}
// hitting bp or whatever should not matter -- we need to ignore it
m_process.Go();
} while (true);
}
catch (COMException e)
{
// Ignore canot copy a VC class error - Can't copy a VC with object refs in it.
if (e.ErrorCode != (int) CorDebug.HResult.CORDBG_E_OBJECT_IS_NOT_COPYABLE_VALUE_CLASS)
throw;
}
finally
{
// we need to resume all the threads that we have suspended no matter what.
m_process.CorProcess.SetAllThreadsDebugState(CorDebugThreadState.THREAD_RUN,
activeThread.CorThread);
}
}
}
txt.Append(expandedDescription.ToString());
}
return txt.ToString();
}
/// <summary>
/// Resolves a Variable name in a given scope.
/// </summary>
/// <param name="variableName">The name of the variable to resolve.</param>
/// <param name="scope">The MDbgFrame to look in for that variable.</param>
/// <returns>The MDbgValue that the given variable has in the given scope.</returns>
public MDbgValue ResolveVariable(string variableName, MDbgFrame scope)
{
Debug.Assert(variableName != null);
Debug.Assert(scope != null);
// variableName should have this form:
// [[module][#<appdomain>]!][(([namespace.]+)<type.>)|.]variable([.field]*)
// Syntax in BNF form:
//
// Expr --> module_scope '!' var_expr
// | var_expr
// module_scope --> <module name> // as determined by Modules.Lookup
// var_expr --> var_root
// | var_expr '.' <id:field>
// | var_expr '[' <integer> ']'
// var_root --> psuedo_var | local_var | parameter_var | global_var | static_class_var\
// | 'gchandle(' ... ')' // see ParseGCHandleArgs
// psuedo_var --> '$' <id> // as determined by DebuggerVars.HaveVariable
// local_var --> <id> // as determined by f.GetActiveLocalVars
// parameter_var --> <id> // as determined by f.GetArguments
// global_var --> <id> // as determined by fields on global token in each module
// static_class_var --> (<id:namespace> '.')* <id:class> '.' <id:static field>
MDbgModule variableModule; // name of the module we should look into for variable resolution
// will contain null, if no module was specified
{
// limit scope of moduleVar
string[] moduleVar = variableName.Split(new[] {'!'}, 2);
Debug.Assert(moduleVar != null);
if (moduleVar.Length > 2)
{
throw new MDbgException("Illegal variable syntax.");
}
else if (moduleVar.Length == 2)
{
variableModule = Modules.Lookup(moduleVar[0]);
variableName = moduleVar[1];
if (variableModule == null)
throw new MDbgException("Module not found");
}
else
variableModule = null;
}
// lookup 1st part
MDbgValue var = null;
int nextPart = 0;
// Check for predicates
if (variableName.StartsWith("gchandle("))
{
string stName;
string[] args;
GetExpressionFunctionArgs(ref variableName, out stName, out args);
nextPart = 1;
var = ParseGCHandleArgs(stName, args, scope);
} // end gchandle
string[] nameParts = variableName.Split(new[] {'.', '['});
Debug.Assert(nameParts.Length >= 1); // there must be at least one part.
if (var != null)
{
// already resolved, no extra work to do.
}
// Let's check if we are asking for debugger var. Those vars are prefixed with $.
// if yes, return the var.
else if (variableName.StartsWith("$")
&& variableModule == null // debugger vars cannot have module specifier
)
{
string varName = nameParts[nextPart];
Debug.Assert(varName.StartsWith("$"));
if (DebuggerVars.HaveVariable(nameParts[nextPart]))
{
MDbgDebuggerVar dv = DebuggerVars[nameParts[0]];
var = new MDbgValue(this, dv.Name, dv.CorValue);
}
else
var = null;
nextPart++;
}
else
{
var vars = new ArrayList();
{
// fill up vars with locals+arguments
MDbgFunction f = scope.Function;
MDbgValue[] vals = f.GetActiveLocalVars(scope);
if (vals != null)
vars.AddRange(vals);
vals = f.GetArguments(scope);
if (vals != null)
vars.AddRange(vals);
}
// try to find a match in locals and arguments first
foreach (MDbgValue v in vars)
if (v.Name == nameParts[nextPart])
{
var = v;
nextPart++;
break;
}
// if no match for locals and arguments, look for globals and static class members
if (var == null)
{
// now let's try to resolve static var of form Namespace.namespace.typeName.var
bool bGlobal = (nameParts[nextPart].Length == 0);
if (bGlobal)
nextPart++;
foreach (MDbgModule m in Modules)
{
if (variableModule != null
&& variableModule != m)
continue; // we're interested only in certain module
if (bGlobal) // global variables
{
// nil type token is used to enum global static data members
var gType = (MetadataType) m.Importer.GetType(0);
FieldInfo[] gField = gType.GetFields(0);
for (int i = 0; i < gField.Length; i++)
{
if (nameParts[nextPart] == gField[i].Name)
{
var = new MDbgValue(this, "." + gField[i].Name,
scope.Function.Module.CorModule.GetGlobalVariableValue(
gField[i].MetadataToken));
nextPart++;
break;
}
}
if (var != null) // done if we find the first match in any module
break;
}
else // static class members
{
var sb = new StringBuilder();
sb.Append(nameParts[nextPart]);
for (int i = nextPart + 1; i < nameParts.Length; i++)
{
int typeToken = m.Importer.GetTypeTokenFromName(sb.ToString());
if (typeToken != CorMetadataImport.TokenNotFound)
{
// we resolved type, let's try to get statics
CorClass cl = m.CorModule.GetClassFromToken(typeToken);
Type classType = m.Importer.GetType(cl.Token);
foreach (MetadataFieldInfo fi in classType.GetFields())
{
if (fi.Name != nameParts[i])
continue;
if (fi.IsStatic)
{
sb.Append(".").Append(nameParts[i]);
CorValue fieldValue = cl.GetStaticFieldValue(fi.MetadataToken,
scope.CorFrame);
var = new MDbgValue(this, sb.ToString(), fieldValue);
nextPart = i + 1;
goto FieldValueFound; // done if we find the first match in any module
}
}
}
sb.Append(".").Append(nameParts[i]);
}
}
}
FieldValueFound:
;
}
}
;
if (var != null)
{
// now try to resolve remaining parts.
for (int i = nextPart; i < nameParts.Length; i++)
{
string part = nameParts[i];
if (part.EndsWith("]"))
{
// it is probably array index
string[] indexStrings = part.Substring(0, part.Length - 1).Split(',');
Debug.Assert(indexStrings != null && indexStrings.Length > 0);
var indexes = new int[indexStrings.Length];
for (int j = 0; j < indexStrings.Length; ++j)
indexes[j] = Int32.Parse(indexStrings[j], CultureInfo.InvariantCulture);
var = var.GetArrayItem(indexes);
}
else
{
// we'll treat it as field name
var = var.GetField(part);
}
}
}
return var;
}
private string PrintArray(int indentLevel, CorDebug.CorArrayValue av, int expandDepth, bool canDoFunceval)
{
Debug.Assert(expandDepth >= 0);
var txt = new StringBuilder();
txt.Append("array [");
int[] dims = av.GetDimensions();
Debug.Assert(dims != null);
for (int i = 0; i < dims.Length; ++i)
{
if (i != 0)
txt.Append(",");
txt.Append(dims[i]);
}
txt.Append("]");
if (expandDepth > 0 && av.Rank == 1 && av.ElementType != CorElementType.ELEMENT_TYPE_VOID)
{
for (int i = 0; i < dims[0]; i++)
{
// Arrays not starting with 0 are not implemented
var v = new MDbgValue(Process, av.GetElementAtPosition(i));
txt.Append("\n").Append(IndentedString(indentLevel + 1, "[" + i + "] = ")).
Append(IndentedBlock(indentLevel + 2,
v.GetStringValue(expandDepth - 1, canDoFunceval)));
}
}
return txt.ToString();
}
public static void NewObjCmd(string arguments)
{
var ap = new ArgParser(arguments);
string className = ap.AsString(0);
MDbgFunction func = Debugger.Processes.Active.ResolveFunctionName(null, className, ".ctor",
Debugger.Processes.Active.Threads.Active.
CorThread.AppDomain);
if (null == func)
throw new MDbgShellException(String.Format(CultureInfo.InvariantCulture, "Could not resolve {0}",
ap.AsString(0)));
CorEval eval = Debugger.Processes.Active.Threads.Active.CorThread.CreateEval();
var callArguments = new ArrayList();
// parse the arguments to newobj
int i = 1;
while (ap.Exists(i))
{
string arg = ap.AsString(i);
// this is a normal argument
MDbgValue rsMVar = Debugger.Processes.Active.ResolveVariable(arg,
Debugger.Processes.Active.Threads.Active.
CurrentFrame);
if (rsMVar == null)
{
// cordbg supports also limited literals -- currently only NULL & I4.
if (string.Compare(arg, "null", true) == 0)
{
callArguments.Add(eval.CreateValue(CorElementType.ELEMENT_TYPE_CLASS, null));
}
else
{
int v;
if (!Int32.TryParse(arg, out v))
throw new MDbgShellException(string.Format(CultureInfo.InvariantCulture,
"Argument '{0}' could not be resolved to variable or number",
arg));
CorGenericValue gv = eval.CreateValue(CorElementType.ELEMENT_TYPE_I4, null).CastToGenericValue();
Debug.Assert(gv != null);
gv.SetValue(v);
callArguments.Add(gv);
}
}
else
{
callArguments.Add(rsMVar.CorValue);
}
++i;
}
eval.NewParameterizedObject(func.CorFunction, null, (CorValue[]) callArguments.ToArray(typeof (CorValue)));
Debugger.Processes.Active.Go().WaitOne();
// now display result of the funceval
if (! (Debugger.Processes.Active.StopReason is EvalCompleteStopReason))
{
// we could have received also EvalExceptionStopReason but it's derived from EvalCompleteStopReason
WriteOutput(MDbgOutputConstants.StdOutput,"Newobj command not fully completed and debuggee has stopped");
WriteOutput(MDbgOutputConstants.StdOutput,"Result of Newobj won't be printed when finished.");
}
else
{
eval = (Debugger.Processes.Active.StopReason as EvalCompleteStopReason).Eval;
Debug.Assert(eval != null);
CorValue cv = eval.Result;
if (cv != null)
{
var mv = new MDbgValue(Debugger.Processes.Active, cv);
WriteOutput("result = " + mv.GetStringValue(1));
if (Debugger.Processes.Active.DebuggerVars.SetEvalResult(cv))
WriteOutput(MDbgOutputConstants.StdOutput,"results saved to $result");
}
}
Shell.DisplayCurrentLocation();
}
