gprof(1) on FreeBSD
The text eb8910e1cd0a, as FreeBSD 5.0-RELEASE shipped it.
display call graph profile data
Flags it lists
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-C -
-E -
-F -
-K -
-L -
-a -
-b -
-c -
-e -
-f -
-l -
-s -
-u -
-z