CVS commit: syssrc/sys/arch/sh5

[Steve Woodford <scw%netbsd.org@localhost>]

Module Name:    syssrc
Committed By:   scw
Date:           Mon Sep  2 14:00:26 UTC 2002

Modified Files:
        syssrc/sys/arch/sh5/include: frame.h
        syssrc/sys/arch/sh5/sh5: exception.S genassym.cf

Log Message:
Catch the case where a synchronous exception occurs during the critical
section of another exception. This is likely to happen if the kernel
stack is misaligned, has dropped off the bottom of the PCB, or has
otherwise gone into orbit.

In this case, switch to a safe stack, save as much of the machine
state as possible and dump it to the console.


To generate a diff of this commit:
cvs rdiff -r1.4 -r1.5 syssrc/sys/arch/sh5/include/frame.h
cvs rdiff -r1.10 -r1.11 syssrc/sys/arch/sh5/sh5/exception.S
cvs rdiff -r1.6 -r1.7 syssrc/sys/arch/sh5/sh5/genassym.cf

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.