Re: [discuss] [PATCH] allow CONFIG_FRAME_POINTER for x86-64

[Andi Kleen]

On Fri, Sep 09, 2005 at 01:07:02PM +0200, Philippe Elie wrote:
> On Fri, 09 Sep 2005 at 11:23 +0000, Andi Kleen wrote:
> 
>  
> > Indeed. Someone must have fixed it.  But why would anyone want frame pointers
> > on x86-64?
> 
> Oprofile can use it, I though it was already used but apparently only
> to backtrace userspace actually.

You should be using dwarf2 unwind information instead. Near all
user space on x86-64 has it, and kernels sometimes too.

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