For instance, at present we see:

$ ./frysk/bindir/fhpd -- ./frysk/pkglibdir/funit-fib-exec 3
Loaded executable file:
/home/scratch/frysk/git/native/frysk-core/./frysk/pkglibdir/funit-fib-exec
(fhpd) b main
breakpoint 0 deferred
(fhpd) run
Attached to process 11087
starting/running with this command: ./frysk/pkglibdir/funit-fib-exec 3
Running process 11087
(fhpd) Breakpoint 0 main 0x80485d3
go
Running process 11087
(fhpd) ./frysk/pkglibdir/funit-fib-exec 3
./frysk/pkglibdir/funit-fib-exec 3 0 3
./frysk/pkglibdir/funit-fib-exec 3 0 2 1
./frysk/pkglibdir/funit-fib-exec 3 0 1 0 1
./frysk/pkglibdir/funit-fib-exec 3 1 0 1
./frysk/pkglibdir/funit-fib-exec 3 1 1
./frysk/pkglibdir/funit-fib-exec 3 2
fib (3) = 2
Task 11087 is exiting with status 0