Profiling forked processes

[Steve Gonczi]

Greetings,
 
This is really a 
gprof question, but it needs a bit of a preamble:
 
I am attempting to 
profile smbd 2.0.7. This app forks a bunch of worker 
processes.
My gmon.out looks 
out of sorts.. e.g.: a huge amount of time is charged to 
_syscall_sys_fork , and the 
self/total time of _syscall_sys_fork is exactly the 
same.
My OS is BSDI 
4.1.
 
Based on the above, I jump to the 
conclusion that the main process is getting 
profiled,
but the workers do not. 
A m I right?
 
I see support for the PROFDIR (GPROFDIR?) 
environmental variable to afford a way of
dealing with this in some versions of 
gprof, at least on some OS -es.
 
-How can I determine 
if the current, mainline gprof in binutils 2.10.1 has support for 
this?
(Perhaps this 
feature is proprietary to some UNIX-es such as HP-UX, Compaq true64, 
and
NetBSD...)
 
-Is there some other 
way of profiling a forked process?
 
TIA 

 
/sG