Re: Generating a function call trace

Brian Gerst (bgerst@didntduck.org)
Fri, 30 Nov 2001 13:20:41 -0500

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).

--


				Brian Gerst
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/