gprof under UNIX V R.3 or R.4?

[John R. Brinkema]

Is there a port of gprof (the BSD profiler) that runs under Unix V relese
3 or 4?  Of course the compiler must support it too.

If not, is there some Unix V tool that gives the same kind of information
that gprof gives.

We are maintaining a BSD system *just for gprof* ... and it is getting
expensive and difficult to justify; but it is such a useful tool! tnx.
jb.