Re: Generating a function call trace

[Davide Libenzi]

On Fri, 30 Nov 2001, Brian Gerst wrote:

> Davide Libenzi wrote:
> >
> > On Fri, 30 Nov 2001, Simon Turvey wrote:
> >
> > > Is it possible to arbitrarily generate (in a module say) a function call
> > > trace?
> >
> > gcc has builtin macros to trace back or ( on x86 ) you can simply chain
> > through %esp/%ebp
>
> That only works if you compile with frame pointers, which the kernel
> turns off for performance reasons (due to register pressure on the x86).

I thought it was a general question not a kernel code one.
Sure -fomit-frame-pointer is on inside the kernel.

- Davide