ktrace(1) on FreeBSD
The text d417bcea54a1, as FreeBSD 5.5-RELEASE, FreeBSD 5.4-RELEASE, FreeBSD 5.3-RELEASE, FreeBSD 5.2.1-RELEASE, FreeBSD 5.2-RELEASE, FreeBSD 5.1-RELEASE, FreeBSD 5.0-RELEASE shipped it.
enable kernel process tracing
Flags it lists
-
-C -
-a -
-c -
-d -
-f -
-g -
-i -
-p -
-t