Re: libc/1427: gprof does not profile threads <synopsis of the problem

[Alan Cox]

> Here are a few alternate ideas off the top of my head:
> 
> * Rip out Linuxthreads, replace it with NGPT, and
> start fixing from there?  (Or does NGPT already fix this?)
> 
> * Rewrite Linux's setitimer(ITIMER_PROF,...) to set up an 
> interval timer for all threads of the thread group.
> 
> * Implement the profil() system call from Solaris
> ( http://ua1vm.ua.edu/cgi-bin/man-cgi?profil+2 )
> 
> What's your favorite idea for getting profiling of
> multithreaded programs working on Linux?

Kernel support is not needed  for this, do it in user space. Or prove it
has to be in kernel space