[OE-core] [PATCH 1/3] bitbake.conf: Prune global OPTIMIZATION flags

[Khem Raj]

On (29/03/11 14:34), Richard Purdie wrote:
> On Mon, 2011-03-21 at 11:11 -0700, Khem Raj wrote:
> > -fexpensive-optimizations is enabled by default at -O2
> > 
> > -fomit-frame-pointer is enabled at -O2 selectively by gcc depending upon
> >   architecture if debug info is not hurt
> > 
> > -frename-registers - This might have some performance advantage on top
> >  of O2 on architectures which have more registers and registers are left
> >  after scheduling but it affects debuggability quite a bit so as a i
> >  tradeoff we do not use it.
> > 
> > -feliminate-dwarf2-dups - We use this option to reduce the size of debug
> >  information by removing duplicates this is only valid for dwarf2+ and we
> >  use dwarf2 by default
> 
> I've disabled this flag for now as it was causing too many failures
> across the board (various apps, prelinker). We can add it back when this
> has been tested more extensively and its been confirmed to work with the
> prelinker.

It would have been better to disable one by one we would be able to
utilize current testing. Most probaly the prelink issue is due to -feliminate-dwarf2-dups did you try to remove that out ?

> 
> Cheers,
> 
> Richard
> 
> 
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-- 
-Khem