2004-10-21 msnyder <msnyder@redhat.com>

2004-10-21  msnyder  <msnyder@redhat.com>

	* mn10300-tdep.c: Replace struct mn10300_unwind_cache with
	struct trad_frame_cache.  Don't seem to need any more.
	(mn10300_frame_unwind_cache): Use trad_frame_cache.
	Tentatively try using SP or A3 reg as frame base.
	(mn10300_frame_dummy_this_id): Rename to mn10300_frame_this_id.
	Call trad_frame_get_id.
	(mn10300_frame_prev_reg): Call trad_frame_get_reg.
	(mn10300_frame_base_address): Call trad_frame_get_this_base.
	(mn10300_frame_args_address, mn10300_frame_locals_address):
	Delete.  Substitute mn10300_frame_base_address.
	(mn10300_frame_unwind_init): Call dwarf2_frame_sniffer (even
	though it doesn't seem to work yet).