K 10
svn:author
V 3
jhb
K 8
svn:date
V 27
2020-02-06T18:02:38.141474Z
K 7
svn:log
V 319
Fix DDB to unwind across exception frames.

While here, add an extra line of information for exceptions and
interrupts and compress the per-frame line down to one line to match
other architectures.

Reviewed by:	mhorne, br
MFC after:	1 week
Sponsored by:	DARPA
Differential Revision:	https://reviews.freebsd.org/D23508

END