VOID
KdpSetStateChange (
IN PDBGKD_WAIT_STATE_CHANGE WaitStateChange,
IN PEXCEPTION_RECORD ExceptionRecord,
IN PCONTEXT ContextRecord,
IN BOOLEAN SecondChance
)
/*++
Routine Description:
Fill in the Wait_State_Change message record.
Arguments:
WaitStateChange - Supplies pointer to record to fill in
ExceptionRecord - Supplies a pointer to an exception record.
ContextRecord - Supplies a pointer to a context record.
SecondChance - Supplies a boolean value that determines whether this is
the first or second chance for the exception.
Return Value:
None.
--*/
{
BOOLEAN status;
//
// Set up description of event, including exception record
//
WaitStateChange->NewState = DbgKdExceptionStateChange;
WaitStateChange->ProcessorLevel = KeProcessorLevel;
WaitStateChange->Processor = (USHORT)KeGetCurrentPrcb()->Number;
WaitStateChange->NumberProcessors = (ULONG)KeNumberProcessors;
WaitStateChange->Thread = (PVOID)KeGetCurrentThread();
WaitStateChange->ProgramCounter = (PVOID)CONTEXT_TO_PROGRAM_COUNTER(ContextRecord);
KdpQuickMoveMemory(
(PCHAR)&WaitStateChange->u.Exception.ExceptionRecord,
(PCHAR)ExceptionRecord,
sizeof(EXCEPTION_RECORD)
);
WaitStateChange->u.Exception.FirstChance = !SecondChance;
//
// Copy instruction stream immediately following location of event
//
WaitStateChange->ControlReport.InstructionCount =
KdpMoveMemory(
&(WaitStateChange->ControlReport.InstructionStream[0]),
WaitStateChange->ProgramCounter,
DBGKD_MAXSTREAM
);
//
// Copy context record immediately following instruction stream
//
if (KdpSendContext) {
KdpMoveMemory((PCHAR)&WaitStateChange->Context,
(PCHAR)ContextRecord,
sizeof(*ContextRecord));
}
//
// Clear breakpoints in copied area
//
status = KdpDeleteBreakpointRange(
WaitStateChange->ProgramCounter,
(PVOID)((PUCHAR)WaitStateChange->ProgramCounter +
WaitStateChange->ControlReport.InstructionCount - 1)
);
//
// If there were any breakpoints cleared, recopy the area without them
//
if (status == TRUE) {
KdpMoveMemory(
&(WaitStateChange->ControlReport.InstructionStream[0]),
WaitStateChange->ProgramCounter,
WaitStateChange->ControlReport.InstructionCount
);
}
}
VOID
KdpSetStateChange (
IN PDBGKD_WAIT_STATE_CHANGE64 WaitStateChange,
IN PEXCEPTION_RECORD ExceptionRecord,
IN PCONTEXT ContextRecord,
IN BOOLEAN SecondChance
)
/*++
Routine Description:
Fill in the Wait_State_Change message record.
Arguments:
WaitStateChange - Supplies pointer to record to fill in
ExceptionRecord - Supplies a pointer to an exception record.
ContextRecord - Supplies a pointer to a context record.
SecondChance - Supplies a boolean value that determines whether this is
the first or second chance for the exception.
Return Value:
None.
--*/
{
ULONG Count;
PVOID End;
//
// Set up description of event, including exception record
//
WaitStateChange->NewState = DbgKdExceptionStateChange;
WaitStateChange->ProcessorLevel = KeProcessorLevel;
WaitStateChange->Processor = (USHORT)KdpGetCurrentPrcb()->Number;
WaitStateChange->NumberProcessors = (ULONG)KeNumberProcessors;
WaitStateChange->Thread = (ULONG_PTR)KdpGetCurrentThread();
WaitStateChange->ProgramCounter = (ULONG_PTR)CONTEXT_TO_PROGRAM_COUNTER(ContextRecord);
if (sizeof(EXCEPTION_RECORD) == sizeof(WaitStateChange->u.Exception.ExceptionRecord)) {
KdpQuickMoveMemory((PCHAR)&WaitStateChange->u.Exception.ExceptionRecord,
(PCHAR)ExceptionRecord,
sizeof(EXCEPTION_RECORD));
} else {
ExceptionRecord32To64((PEXCEPTION_RECORD32)ExceptionRecord,
&WaitStateChange->u.Exception.ExceptionRecord
);
}
WaitStateChange->u.Exception.FirstChance = !SecondChance;
//
// Copy the immediate instruction stream into the control report structure.
//
Count = KdpMoveMemory(&WaitStateChange->ControlReport.InstructionStream[0],
(PVOID)WaitStateChange->ProgramCounter,
DBGKD_MAXSTREAM);
WaitStateChange->ControlReport.InstructionCount = (USHORT)Count;
//
// Clear breakpoints in the copied instruction stream. If any breakpoints
// are clear, then recopy the instruction strasm.
//
End = (PVOID)((PUCHAR)(WaitStateChange->ProgramCounter) + Count - 1);
if (KdpDeleteBreakpointRange((PVOID)WaitStateChange->ProgramCounter, End) != FALSE) {
KdpMoveMemory(&WaitStateChange->ControlReport.InstructionStream[0],
(PVOID)WaitStateChange->ProgramCounter,
Count);
}
//
// Copy the context record into the wait state structure.
//
KdpMoveMemory((PCHAR)&WaitStateChange->Context,
(PCHAR)ContextRecord,
sizeof(*ContextRecord));
return;
}