K 10
svn:author
V 5
mmacy
K 8
svn:date
V 27
2019-02-23T21:14:00.129712Z
K 7
svn:log
V 190
gcov support

add gcov support and export results as files in debugfs

Reviewed by:	hps@
MFC after:	1 week
Sponsored by:	iX Systems
Differential Revision:	https://reviews.freebsd.org/D19260

END