user mode backtrace

[David Boreham]

>pid = fork_ptraceme_exec("myapp"); // start the app paused
>stappid = fork_exec("stap myscript.stp -x " + pid); // start systemtap
>ptrace(DETACH, pid, ...); // let the app run
>  
>
Actually I don't think this will help me because it looks like
it assumes a specific target process. That's the specific problem that
I have : I don't know which processes are going to be interesting
in advance.