[Buildroot] Xorg crash
Peter Korsgaard
peter at korsgaard.com
Thu May 5 18:40:42 UTC 2016
>>>>> "Gustavo" == Gustavo Zacarias <gustavo at zacarias.com.ar> writes:
> On 05/05/16 14:31, Thomas Petazzoni wrote:
>> Hello,
>>
>> On Thu, 5 May 2016 11:33:13 -0300, Gustavo Zacarias wrote:
>>
>>> Try using BR2_OPTIMIZE_2=y and rebuild everything - the X server is
>>> notoriously fragile when optimizing for size with certain toolchain
>>> combinations/architectures.
>>
>> Should we:
>>
>> (1) Switch to -O2 as the default optimization level ?
>>
>> (2) Force -O2 for the X.org server ?
>>
>> Thomas
> Hi.
> From the little testing i've done it seems that switching the xorg
> server alone to -O2 is enough.
> I'm not a fan of "dark magic" scenarios, however it seems to be a
> recurring problem, at least for ARM & MIPS, doesn't seem to be the
> case for x86_64.
> I could make a couple test configs to see on which combinations it's
> failing by extending the Qemu ones, but it's probably more hassle than
> anything since there seems to be a wide spectrum of gcc versions
> affected.
> Going for -O2 might be the quickest solution, at least for xorg-server
> itself.
Yes, I agree. Simply forcing -O2 for xorg-server (with a sensible
comment explaining why) is good enough. People including Xorg are most
likely not as tight on space that -Os / -O2 matters much.
--
Venlig hilsen,
Peter Korsgaard
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