Module Name:	src
Committed By:	thorpej
Date:		Tue Apr 20 21:12:00 UTC 1999

Modified Files:
	src/sys/arch/alpha/alpha: locore.s
Log Message:
- Revert previous change to XentIF(), now that we're going to enter the
debugger differently.
- Pull in debugger glue if DDB is configured.

And one unrelated change, while I was here: Don't create a fake trapframe
for main(); it hasn't been used by main() for quite some time, and panic
if main() returns, because that's not supposed to happen now.