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
-
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This archive was generated by hypermail 2b29 : Fri Nov 30 2001 - 21:00:40 EST