ktrace(1) on OpenBSD
The text a59412c3055b, as OpenBSD 7.1, OpenBSD 7.0, OpenBSD 6.9, OpenBSD 6.8 shipped it.
enable kernel process tracing
Flags it lists
-
-B -
-C -
-T -
-a -
-c -
-d -
-f -
-g -
-i -
-p -
-t