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

[Khem Raj]

On Tue, Mar 29, 2011 at 8:00 AM, Khem Raj <raj.khem at gmail.com> wrote:
> 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 ?
>

To answer myself. I should have looked at the committed patch. :)


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