lockstat(1) on FreeBSD
The text dccb0bfa4ac1, as FreeBSD 12.0-RELEASE shipped it.
report kernel lock and profiling statistics
Flags it lists
-
-A -
-C -
-D -
-E -
-H -
-I -
-P -
-R -
-T -
-V -
-W -
-b -
-d -
-e -
-f -
-g -
-h -
-i -
-k -
-l -
-n -
-o -
-p -
-s -
-t -
-w