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Work on thread-awareness in gdbstub

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svn path=/trunk/; revision=8103
This commit is contained in:
Gé van Geldorp 2004-02-08 22:12:53 +00:00
parent 30ada1654d
commit d8e8ec2a96
1 changed files with 42 additions and 12 deletions
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54
reactos/ntoskrnl/kd/gdbstub.c
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@ -699,6 +699,7 @@ GspSetThread(PCHAR Request)
if(GspRunThread) ObDereferenceObject(GspRunThread);
GspRunThread = ThreadInfo;
if (GspRunThread) ObReferenceObject(GspRunThread);
}
else
{
@ -1057,6 +1058,7 @@ KdEnterDebuggerException(PEXCEPTION_RECORD ExceptionRecord,
LONG NewPC;
PCHAR ptr;
LONG Esp;
KIRQL OldIrql;
/* FIXME: Stop on other CPUs too */
/* Disable hardware debugging while we are inside the stub */
@ -1079,6 +1081,20 @@ KdEnterDebuggerException(PEXCEPTION_RECORD ExceptionRecord,
}
else
{
/* Don't switch threads */
OldIrql = KeGetCurrentIrql();
if (OldIrql < DISPATCH_LEVEL)
{
KeRaiseIrql(DISPATCH_LEVEL, &OldIrql);
}
/* Always use the current thread when entering the exception handler */
if (NULL != GspDbgThread)
{
ObDereferenceObject(GspDbgThread);
GspDbgThread = NULL;
}
/* reply to host that an exception has occurred */
SigVal = GspComputeSignal (ExceptionRecord->ExceptionCode);
@ -1129,17 +1145,24 @@ KdEnterDebuggerException(PEXCEPTION_RECORD ExceptionRecord,
GspRemoteDebug = !GspRemoteDebug; /* toggle debug flag */
break;
case 'g': /* return the value of the CPU Registers */
if (GspDbgThread)
GspGetRegistersFromTrapFrame (&GspOutBuffer[0], Context, GspDbgThread->Tcb.TrapFrame);
if (NULL != GspDbgThread)
{
GspGetRegistersFromTrapFrame (&GspOutBuffer[0], Context, GspDbgThread->Tcb.TrapFrame);
}
else
GspGetRegistersFromTrapFrame (&GspOutBuffer[0], Context, TrapFrame);
{
GspGetRegistersFromTrapFrame (&GspOutBuffer[0], Context, TrapFrame);
}
break;
case 'G': /* set the value of the CPU Registers - return OK */
if (GspDbgThread)
/* GspSetRegistersInTrapFrame (ptr, Context, GspDbgThread->Tcb.TrapFrame);*/
GspSetRegistersInTrapFrame (ptr, Context, TrapFrame);
if (NULL != GspDbgThread)
{
GspSetRegistersInTrapFrame (ptr, Context, GspDbgThread->Tcb.TrapFrame);
}
else
GspSetRegistersInTrapFrame (ptr, Context, TrapFrame);
{
GspSetRegistersInTrapFrame (ptr, Context, TrapFrame);
}
strcpy (GspOutBuffer, "OK");
break;
case 'P': /* set the value of a single CPU register - return OK */
@ -1150,11 +1173,14 @@ GspSetRegistersInTrapFrame (ptr, Context, TrapFrame);
if ((Register >= 0) && (Register < NUMREGS))
{
if (GspDbgThread)
/* GspSetSingleRegisterInTrapFrame (ptr, Register,
Context, GspDbgThread->Tcb.TrapFrame);*/
GspSetSingleRegisterInTrapFrame (ptr, Register, Context, TrapFrame);
{
GspSetSingleRegisterInTrapFrame(ptr, Register,
Context, GspDbgThread->Tcb.TrapFrame);
}
else
GspSetSingleRegisterInTrapFrame (ptr, Register, Context, TrapFrame);
{
GspSetSingleRegisterInTrapFrame (ptr, Register, Context, TrapFrame);
}
strcpy (GspOutBuffer, "OK");
break;
}
@ -1222,7 +1248,7 @@ GspSetSingleRegisterInTrapFrame (ptr, Register, Context, TrapFrame);
/* try to read optional parameter, pc unchanged if no parm */
if (GspHex2Long (&ptr, &Address))
Context->Eip = Address;
Context->Eip = Address;
NewPC = Context->Eip;
@ -1263,6 +1289,10 @@ GspSetSingleRegisterInTrapFrame (ptr, Register, Context, TrapFrame);
#else
#error Unknown compiler for inline assembler
#endif
if (OldIrql < DISPATCH_LEVEL)
{
KeLowerIrql(OldIrql);
}
return kdHandleException;
break;