public DebugException(EXCEPTION_RECORD32 ex, bool firstChance)
{
this.IsFirstChance = firstChance;
Message = GetCodeMessage(Code = ex.Code, out Title);
this.Address = ex.ExceptionAddress;
this.IsContinuable = ex.ExceptionFlags == 0;
if (ex.ExceptionRecord != IntPtr.Zero)
{
var innerExt = new EXCEPTION_RECORD32();
Marshal.PtrToStructure(ex.ExceptionRecord, innerExt);
InnerException = new DebugException(innerExt, firstChance);
}
}
public DebugException(EXCEPTION_RECORD32 ex, bool firstChance)
{
this.IsFirstChance = firstChance;
Message = GetCodeMessage(Code = ex.Code, out Title);
this.Address = ex.ExceptionAddress;
this.IsContinuable = ex.ExceptionFlags == 0;
if (ex.ExceptionRecord != IntPtr.Zero)
{
var innerExt = new EXCEPTION_RECORD32();
Marshal.PtrToStructure(ex.ExceptionRecord, innerExt);
InnerException = new DebugException(innerExt, firstChance);
}
}
void HandleException(DebugThread th, EXCEPTION_DEBUG_INFO e)
{
th.Context.Update();
var code = e.ExceptionRecord.Code;
// The instruction
var targetSiteAddress = e.ExceptionRecord.ExceptionAddress;
if (code == ExceptionCode.Breakpoint)
{
if (CodeStepping.lastUnhandledBreakpoint != null)
{
CodeStepping.postBreakpointResetStepCompleted = true;
}
var bp = Breakpoints.ByAddress(targetSiteAddress);
if (bp == null)
{
return;
}
//APIIntermediate.GetCallStack_x86(th.OwnerProcess.Handle, (uint)th.StartAddress.ToInt32(), th.Context["ebp"], th.Context["eip"]);
/*
* var sf = new STACKFRAME64();
* sf.AddrPC.Offset = th.Context["eip"];
* sf.AddrFrame.Offset = th.Context["ebp"];
* sf.AddrStack.Offset = th.Context["esp"];
* sf.AddrReturn.Mode = sf.AddrStack.Mode = sf.AddrPC.Mode = sf.AddrFrame.Mode = ADDRESS_MODE.AddrModeFlat;
*
* if(!API.StackWalk64(MachineType.i386, th.OwnerProcess.Handle, th.Handle, ref sf, ref th.Context.lastReadCtxt))
* throw new Win32Exception(Marshal.GetLastWin32Error());
*/
th.CurrentInstruction = targetSiteAddress;
bp.Disable();
bp.temporarilyDisabled = true;
CodeStepping.lastUnhandledBreakpoint = bp;
CodeStepping.lastUnhandledBreakpointThread = th;
bp.WasHit();
foreach (var l in DDebugger.EventListeners)
{
l.OnBreakpoint(th, bp);
}
}
else if (code == ExceptionCode.SingleStep)
{
if (CodeStepping.lastUnhandledBreakpoint != null)
{
CodeStepping.postBreakpointResetStepCompleted = true;
}
else
{
foreach (var l in DDebugger.EventListeners)
{
l.OnStepComplete(th);
}
}
}
else
{
var ex = new DebugException(e.ExceptionRecord, e.dwFirstChance != 0);
foreach (var l in DDebugger.EventListeners)
{
l.OnException(th, ex);
}
LastException = ex;
}
}
public override void OnException(DebugThread thread, DebugException exception)
{
form.HighlightCurrentInstruction(thread);
}
void HandleException(DebugThread th, EXCEPTION_DEBUG_INFO e)
{
th.Context.Update();
var code = e.ExceptionRecord.Code;
// The instruction
var targetSiteAddress = e.ExceptionRecord.ExceptionAddress;
if (code == ExceptionCode.Breakpoint)
{
if (CodeStepping.lastUnhandledBreakpoint != null)
CodeStepping.postBreakpointResetStepCompleted = true;
var bp = Breakpoints.ByAddress(targetSiteAddress);
if (bp == null)
return;
//APIIntermediate.GetCallStack_x86(th.OwnerProcess.Handle, (uint)th.StartAddress.ToInt32(), th.Context["ebp"], th.Context["eip"]);
/*
var sf = new STACKFRAME64();
sf.AddrPC.Offset = th.Context["eip"];
sf.AddrFrame.Offset = th.Context["ebp"];
sf.AddrStack.Offset = th.Context["esp"];
sf.AddrReturn.Mode = sf.AddrStack.Mode = sf.AddrPC.Mode = sf.AddrFrame.Mode = ADDRESS_MODE.AddrModeFlat;
if(!API.StackWalk64(MachineType.i386, th.OwnerProcess.Handle, th.Handle, ref sf, ref th.Context.lastReadCtxt))
throw new Win32Exception(Marshal.GetLastWin32Error());
*/
th.CurrentInstruction = targetSiteAddress;
bp.Disable();
bp.temporarilyDisabled = true;
CodeStepping.lastUnhandledBreakpoint = bp;
CodeStepping.lastUnhandledBreakpointThread = th;
bp.WasHit();
foreach (var l in DDebugger.EventListeners)
l.OnBreakpoint(th, bp);
}
else if (code == ExceptionCode.SingleStep)
{
if (CodeStepping.lastUnhandledBreakpoint != null)
CodeStepping.postBreakpointResetStepCompleted = true;
else
foreach (var l in DDebugger.EventListeners)
l.OnStepComplete(th);
}
else
{
var ex = new DebugException(e.ExceptionRecord, e.dwFirstChance != 0);
foreach (var l in DDebugger.EventListeners)
l.OnException(th, ex);
LastException = ex;
}
}
public virtual void OnException(DebugThread thread, DebugException exception)
{
}
public virtual void OnException(DebugThread thread, DebugException exception)
{
}
