NetBSD master CVS tree commits

[source%NetBSD.ORG@localhost]

thorpej
Sat Oct  5 00:24:11 PDT 1996
Update of /cvsroot/src/sys/arch/hp300/hp300
In directory netbsd1:/var/slash-tmp/cvs-serv21417

Modified Files:
        trap.c 
Log Message:
Handle kernel trace traps and breakpoints like the Sun3 port:
        - Only pass user trace traps and breakpoints on to trap().
          Gets rid of some hair in the trace/breakpoint trap cases.
        - Before entering the debugger, switch to a temporary
          stack so that the debugger can alter the stack pointer.
        - Add glue for KGDB (still not complete).
Some other minor cleanup:
        - Protect against some bad pointer derefs.
        - Be more a little more verbose when a fatal trap
          occurs to aid debugging.