CVS: cvs.openbsd.org: src

[Miod Vallat <miod_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org>]

CVSROOT:	/cvs
Module name:	src
Changes by:	miod_(_at_)_cvs_(_dot_)_openbsd_(_dot_)_org	2003/09/17 16:22:32

Modified files:
	sys/arch/mvme88k/include: trap.h 
	sys/arch/mvme88k/mvme88k: eh.S trap.c 

Log message:
More cleaning of the exception handling code, and collateral damage:
- always give C routines invoked by the assembly code some breathing room on
the stack
- merge error and reset exception handlers -- gets us rid of error_fault()
and error_reset().
- remove all references to SR0 and "threads" inherited from Mach. In fact,
we do not use SR0 at all now.
- only use double load and stores instructions when we are 200% sure we are
accessing a correctly aligned area. I am not fond of unaligned kernel
accesses, and forcing every pgb to be aligned on an 8 byte boundary is
gross.