Re: preempt_schedule_irq missing from mfinfo[]?

[Ralf Baechle <ralf@linux-mips.org>]

On Wed, Jul 06, 2005 at 09:58:50AM +0100, Maciej W. Rozycki wrote:

> > Yes, but many sleeping/scheduling (such as schedule_timeout(),
> > __down(), etc.)  are compiled without -fno-omit-frame-pointer, so
> > you can not find the caller of such functions anyway.
> 
>  Of course you can -- __builtin_return_address().  It should be enough for 
> `ps' to fetch useful data from "System.map", shouldn't it?

__builtin_return_address() is what those function could use themselves.
In this case it's about another piece of code unwinding the stackframe
until we hit a caller address that is not a scheduling function.

  Ralf