gprof(1) on Linux
The text e133e5741a7e, as Debian 1.3 (Bo), Debian 1.2 (Rex), Debian 1.1 (Buzz) shipped it.
display call graph profile data
Flags it lists
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-E -
-F -
-a -
-b -
-c -
-e -
-f -
-s -
-v -
-z