Re: gpu-viv-mx6q and libEGL.so/libEGL.so.1

[Eric Nelson <eric.nelson@boundarydevices.com>]

Hi Philip,

On 07/26/2013 03:05 AM, Philip Craig wrote:
> On Fri, Jul 26, 2013 at 7:54 PM, Philip Craig <phil@blackmoth.com.au> wrote:
>> On Fri, Jul 26, 2013 at 10:44 AM, Eric Nelson
>> <eric.nelson@boundarydevices.com> wrote:
>>> Hi all,
>>>
>>> When running the sample apps in /opt/viv_samples/vdk
>>> under strace on a frame-buffer only build, I can see that
>>> something is trying to load libEGL.so (no trailing 1).
>>>
>>> Looking at the recipe, I'm not quite grokking how this is
>>> placed into the image though.
>>>
>>> I can see a symlink being created pointing libEGL.so at
>>> libEGL.so.1 here:
>>>
>>>
>>> https://github.com/Freescale/meta-fsl-arm/blob/master/recipes-graphics/gpu-viv-bin-mx6q/gpu-viv-bin-mx6q.inc#L130
>>>
>>> Somehow or another, the symlink is ending up in the -dev package
>>> though:
>>>
>>> $ find gpu-viv-bin-mx6q/1_3.0.35-4.0.0-r5.0/packages-split/ \
>>>          -name libEGL\*
>>> gpu-viv-bin-mx6q/1_3.0.35-4.0.0-r5.0/packages-split/libegl-mx6-dev/usr/lib/libEGL.so
>>> gpu-viv-bin-mx6q/1_3.0.35-4.0.0-r5.0/packages-split/libegl-mx6/usr/lib/libEGL.so.1
>>>
>>> Can anybody give some guidance on where and how that's happening?
>>
>> See lines 152 and 153 of gpu-viv-bin-mx6q.inc. If something needs
>> libEGL.so then this probably needs to be changed to how libgles and
>> libgles2 are done. It would be nice to document exactly where the
>> dependency is though so that we know when we can remove the hack once
>> it is fixed.
>>
>>> Does anybody know where the missing reference to libEGL.so
>>> might be coming from? This doesn't appear to be a hard-coded
>>> linker dependency from any of the sample apps or from the
>>> other shared libraries.
>>
>> I can't see the dependency from inspection. What's the exact error message?
>
> I see now. The samples uses libGAL.so, and it contains the string
> libEGL.so, as well as a gcoOS_LoadEGLLibrary function.
>

Thanks for finding this.

Since these are binaries, we'll need to defer to Freescale/Vivante
for a proper fix.