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- Implement KeTrapFrameToContext.

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- We now get to the point where we call KiDebugRoutine, which is registered as KdpEnterDebuggerException.
- KdpEnterDebuggerException reads our exception record and understands this is a BREAKPOINT_PRINT.
- It then calls the KdpServiceDispatcher.
- This, in turn, calls KdpPrintString.
- Which in turn loops the "debug providers" and calls KdpSerialPrintString.
- Which calls into KDCOM.
- And we see this on the debug log: (ntoskrnl/kd/kdio.c:191) .
- Epic Win. Need to implement KeContextToTrapFrame now.


svn path=/trunk/; revision=34482
This commit is contained in:
ReactOS Portable Systems Group 2008-07-13 23:58:47 +00:00
parent 673e2fd5fd
commit ed3125b4e0
1 changed files with 71 additions and 2 deletions
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73
reactos/ntoskrnl/ke/arm/exp.c
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@ -14,6 +14,10 @@
/* GLOBALS ********************************************************************/
#include <internal/arm/ksarm.h>
#define KiGetPreviousMode(tf) \
((tf->Spsr & CPSR_MODES) == CPSR_USER_MODE) ? UserMode: KernelMode
/* FUNCTIONS ******************************************************************/
@ -35,8 +39,73 @@ KeTrapFrameToContext(IN PKTRAP_FRAME TrapFrame,
IN PKEXCEPTION_FRAME ExceptionFrame,
IN OUT PCONTEXT Context)
{
while (TRUE);
return;
KIRQL OldIrql;
//
// Do this at APC_LEVEL
//
OldIrql = KeGetCurrentIrql();
if (OldIrql < APC_LEVEL) KeRaiseIrql(APC_LEVEL, &OldIrql);
//
// Start with the Control flags
//
if ((Context->ContextFlags & CONTEXT_CONTROL) == CONTEXT_CONTROL)
{
//
// So this basically means all the special stuff
//
if (KiGetPreviousMode(TrapFrame))
{
//
// ARM has register banks
//
Context->Sp = TrapFrame->UserSp;
Context->Lr = TrapFrame->UserLr;
}
else
{
//
// ARM has register banks
//
Context->Sp = TrapFrame->SvcSp;
Context->Lr = TrapFrame->SvcLr;
}
//
// The rest is already in the right mode
//
Context->Pc = TrapFrame->Pc;
Context->Psr = TrapFrame->Spsr;
}
//
// Now do the integers
//
if ((Context->ContextFlags & CONTEXT_INTEGER) == CONTEXT_INTEGER)
{
//
// Basically everything else but FPU
//
Context->R0 = TrapFrame->R0;
Context->R1 = TrapFrame->R1;
Context->R2 = TrapFrame->R2;
Context->R3 = TrapFrame->R3;
Context->R4 = TrapFrame->R4;
Context->R5 = TrapFrame->R5;
Context->R6 = TrapFrame->R6;
Context->R7 = TrapFrame->R7;
Context->R8 = TrapFrame->R8;
Context->R0 = TrapFrame->R9;
Context->R10 = TrapFrame->R10;
Context->R11 = TrapFrame->R11;
Context->R12 = TrapFrame->R12;
}
//
// Restore IRQL
//
if (OldIrql < APC_LEVEL) KeLowerIrql(OldIrql);
}
VOID