[poky] GCC 4.6.0 on ARM?

[Gary Thomas]

On 05/10/2011 09:28 PM, Kamble, Nitin A wrote:
>
>
>> -----Original Message-----
>> From: poky-bounces at yoctoproject.org [mailto:poky-
>> bounces at yoctoproject.org] On Behalf Of Gary Thomas
>> Sent: Monday, May 02, 2011 5:57 AM
>> To: Khem Raj
>> Cc: Poky Project; Patches and discussions about the oe-core layer
>> Subject: Re: [poky] GCC 4.6.0 on ARM?
>>
>> On 04/30/2011 04:10 PM, Khem Raj wrote:
>>> On Thu, Apr 28, 2011 at 11:23 AM, Khem Raj<raj.khem at gmail.com>
>> wrote:
>>>> On Thu, Apr 28, 2011 at 10:09 AM, Gary Thomas<gary at mlbassoc.com>
>> wrote:
>>>>> I got my OMAP target to build with GCC-4.6.0 using the latest
>>>>> Poky tree after a fresh rebuild.  Sadly, the Linux kernel
>> (2.6.37.3)
>>>>> does not run correctly when built with this compiler.  It
>>>>> fails when enumerating the USB bus :-(
>>>>>
>>>>> Are there known issues with the Linux kernel on ARM and GCC-4.6?
>>>>>
>>>>
>>>> There has been fixes on top of 4.6.0 the one we have right now is
>> vanilla
>>>> 4.6.0 release. I plan to add second set of patches but you have to
>> dig a bit
>>>> more to identify the problem
>>>>
>>>
>>> I have some updates for gcc 4.6.0
>>> they are staged in
>>>
>>> http://git.openembedded.org/cgit.cgi/openembedded-core-
>> contrib/log/?h=kraj/gcc-4.6
>>>
>>> (top 3 patches)
>>>
>>> Please test them out and if you are lucky
>>> your problem might be fixed too.
>>>
>>> All, please try these patches and provide any feedback
>>
>> I was able to build my kernel (ARM OMAP/3530 based) using this, but
>> the USB still doesn't work, so no improvement, sorry.
>
> Gary,
>   Is the USB breakage is due to gcc 4.6.0 ?

Yes, that's the only change.  Building the kernel from the same
source repository with 4.5.2 (using patches from you and Khem Raj)
works perfectly.

-- 
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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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