Workarounds for very useful developer userspace tracing scripts

[argetek senvx]

Hi guys,

I know that the userspace tracing is in works, and I keep checking the
lists to see if any progress has been made.  But I am tired of going
over to my Solaris VM all the time to execute the these three DTrace
scripts or variations thereof:

        -  Which system calls a particular userspace function in a
           process invokes

        -  Aggregate user stacks calling a particular function in
           userspace

        -  Good ol' userspace function trace with call flow
           indentation.

I was wondering if there's any guess as to when the userspace tracing
will become available.  But in the meantime, are there any workarounds
for these scripts that I could use on Linux?

Regards,

      ~ argetek