FreezeProcessor(ref SpillContext threadContext)
{
ProcessorContext *context = Processor.GetCurrentProcessorContext();
if (context->ipiFreeze == Uninitialized)
{
// Processor was still being initialized when IPI issued
while (FreezeRequested == true)
{
; // just spin until thaw occurs
}
return;
}
context->ipiFreeze = TargetFrozen;
while (context->ipiFreeze != TargetThaw && FreezeRequested)
{
if ((context->ipiFreeze & FreezeActive) == FreezeActive)
{
//
// This processor has been made the active processor
//
activeCpuContext = context;
// Pass state over to debugger stub
if (DebugStub.TrapForProcessorSwitch(ref threadContext))
{
// We're returning to Freeze owner, make it active
context->ipiFreeze &= ~FreezeActive;
ownerCpuContext->ipiFreeze |= FreezeActive;
}
}
}
context->ipiFreeze = Running;
}
internal static extern bool TrapForProcessorSwitch(ref SpillContext context);
internal static extern bool Trap(ref SpillContext context, int it);
