Justin Hibbits 8d2f50dba6 Avoid using non-zero argument for __builtin_frame_address().
Building kernel with devel/powerpc64-gcc (6.2.0) yields the following error:
/usr/src/sys/powerpc/powerpc/db_trace.c:299:20: error: calling
'__builtin_frame_address' with a nonzero argument is unsafe
[-Werror=frame-address]

Work around this by dereferencing the frame address manually instead.

PR:		215600
Reported by:	Mark Millard <markmi AT dsl-only DOT net>
MFC after:	2 weeks
2017-01-23 04:03:12 +00:00
..
2017-01-22 06:17:31 +00:00
2016-09-21 22:09:17 +00:00