On Thursday 18 May 2006 14:27, Lubomir Kundrak wrote:
> On Sat, May 13, 2006 at 06:38:26AM +0200, Yoshinori K. Okuji wrote:
> > Message-Id: <[EMAIL PROTECTED]>
> >
> > Great!
> >
> > I guess it is necessary to compile the binary with -O0 or -O1 to get a
> > reasonable backtrace... I'd appreciate if you can write a HOWTO. :)
>
> On i386 GCC generates full stack frames even with -O optizations.
> It only omits frame pointer on architectures on which it doesn't
> interfere with debugging.

The problem is not the frame pointers. With -Os, gcc inlines functions used 
only once. For example, grub_dl_add is eliminated in gcc 4.x.

Okuji


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