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

[Richard Purdie]

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.

Cheers,

Richard