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Old 13-01-2015, 20:58   #571
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Re: OpenCPN Runs on Embedded ARM

Freddie, you need to install libgles2-mesa-dev package
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Old 14-01-2015, 08:19   #572
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Re: OpenCPN Runs on Embedded ARM

Could make that part of the script? If missing install...
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Old 14-01-2015, 10:29   #573
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Re: OpenCPN Runs on Embedded ARM

Simple Question ? In your log shows as a prompt bananapi/lemaker ? Are you running the Cubie with the Bananapi software ? Or are you compiling the Cubie software on a BananaPi ?

Regards,


Bram
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Old 14-01-2015, 16:29   #574
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Re: OpenCPN Runs on Embedded ARM

Quote:
Originally Posted by LeoA View Post
Freddie, you need to install libgles2-mesa-dev package
LeoA:
I tried installing libgles2-mesa-dev, but that did not fix the problem.
The problem remains, cannot find libEGL.

Thanks,
Freddie
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Old 14-01-2015, 16:35   #575
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Re: OpenCPN Runs on Embedded ARM

Freddie...
Code:
sudo find / -name libEGL*
returns something?

Pavel
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Old 14-01-2015, 16:36   #576
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Re: OpenCPN Runs on Embedded ARM

Quote:
Originally Posted by verkerkbr View Post
Simple Question ? In your log shows as a prompt bananapi/lemaker ? Are you running the Cubie with the Bananapi software ? Or are you compiling the Cubie software on a BananaPi ?

Regards,


Bram
Bram:
I can understand how you or anyone else might be confused about what I am doing.
I now have a Bananapi-Pro and am trying to adapt my script (that was originally created for Qbee-X and Aruntu on the CubieTruck) to get OpenGL-ES2, OpenCPN, and OpenCPN plugins to work on the Bananapi-Pro (Lubuntu) the same way they do on the Cubie boards.

So far everything works except the OpenGL-ES2 install which is currently broke. But I think I may have an answer in a couple of days. Stand By!

Thanks,
Freddie
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Old 14-01-2015, 16:58   #577
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Re: OpenCPN Runs on Embedded ARM

Quote:
Originally Posted by nohal View Post
Freddie...
Code:
sudo find / -name libEGL*
returns something?

Pavel
Pavel:
Here is what the terminal says:
Code:
bananapi@lemaker:~$ sudo find  / -name libEGL
bananapi@lemaker:~$ 
bananapi@lemaker:~$ locate libEGL
/home/bananapi/Old_Mesa_Stuff/From_usr-lib-arm-linux-gnueabihf/mesa-egl/libEGL.so.1
/home/bananapi/Old_Mesa_Stuff/From_usr-lib-arm-linux-gnueabihf/mesa-egl/libEGL.so.1.0.0
/usr/lib/arm-linux-gnueabihf/libEGL.so
/usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so
bananapi@lemaker:~$
As you can see find did not find anything, but locate found libEGL.so in /usr/lib/arm-linux-gnueabihf/, and in /usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so.
However these are symbolic links that point to the mesa folder, which is the software emulated code for libEGL.
I think that the person that created this distribution did not build the user-land files for the Mali kernel modules.

I'm still digging!:bang head:

Thanks,
Freddie
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Old 14-01-2015, 17:20   #578
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Re: OpenCPN Runs on Embedded ARM

Freddie...
Next time please run the command exactly as I posted it, it will actually return something...

Are you absolutely sure that the symlinks are correct?
If they are, I would also do
Code:
sudo ln -s /usr/lib/arm-linux-gnueabihf/libEGL.so /usr/lib/arm-linux-gnueabihf/libEGL.so.1
sudo ldconfig
And I suppose you are absolutely sure that /usr/lib/arm-linux-gnueabihf is in your /etc/ld.so.conf...

Pavel
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Old 14-01-2015, 18:44   #579
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Re: OpenCPN Runs on Embedded ARM

Quote:
Originally Posted by nohal View Post
Freddie...
Next time please run the command exactly as I posted it, it will actually return something...

Are you absolutely sure that the symlinks are correct?
If they are, I would also do
Code:
sudo ln -s /usr/lib/arm-linux-gnueabihf/libEGL.so /usr/lib/arm-linux-gnueabihf/libEGL.so.1
sudo ldconfig
And I suppose you are absolutely sure that /usr/lib/arm-linux-gnueabihf is in your /etc/ld.so.conf...

Pavel
Pavel:
Oops, Senior moment, I forgot the *. I guess I was in such a hurry, and I have five computers going all at once, please forgive this old fool.

I have decided to start with a fresh built, and back off on the over zealous removal of libs and Stuff.

Start from scratch.

Thanks,
Freddie
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Old 14-01-2015, 19:05   #580
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Re: OpenCPN Runs on Embedded ARM

Nohal:
OK, Starting with a freshly created Lubuntu (Ubuntu 14.04), I changed my script to not remove anything from the guts of this system, and then tried to build glshim from Sean's Github repository, and here is the results:

Code:
Now lets do cmake of glshim.....
Now lets build glshim.....
/home/bananapi/glshim/src/glx/glx.c: In function ‘xrefresh’:
/home/bananapi/glshim/src/glx/glx.c:158:11: warning: ignoring return value of ‘system’, declared with attribute warn_unused_result [-Wunused-result]
     system("xrefresh");
           ^
/usr/bin/ld: cannot find -lEGL
collect2: error: ld returned 1 exit status
make[3]: *** [lib/libGL.so.1] Error 1
make[2]: *** [src/CMakeFiles/GL.dir/all] Error 2
make[1]: *** [src/CMakeFiles/GL.dir/rule] Error 2
make: *** [GL] Error 2
Building of glshim failed.....
 more information on errors refer to the log file in the build directory.
So I tried to find libEGL with your command:

bananapi@lemaker:~$ sudo find / -name libEGL*
/usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so.1.0.0
/usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so.1

I also checked to see if /arm-linux-gnueabihf/ was in the /etc/ld.so.conf folder and here it is, its called arm-linux-gnueabihf.conf and this is what's inside:

# Multiarch support
/lib/arm-linux-gnueabihf
/usr/lib/arm-linux-gnueabihf

Do you still recommend I put a symlink somewhere like this:
sudo ln -s /usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so.1 /usr/lib/arm-linux-gnueabihf/libEGL.so.1
to let glshim find it easier?

Thanks,
Freddie
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Old 14-01-2015, 19:13   #581
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Re: OpenCPN Runs on Embedded ARM

I would just add /usr/lib/arm-linux-gnueabihf/mesa-egl into ld.so.conf and rerun ldconfig


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Old 14-01-2015, 19:34   #582
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Re: OpenCPN Runs on Embedded ARM

Nohal:
I tried to install a symlink in /usr/lib/arm-linux-gnueabihf/ with this command:

ln -s /usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so.1 /usr/lib/arm-linux-gnueabihf/libEGL.so.1.

This resulted in the same error, glshim linker still cannot find lEGL.

Any other suggestions?

Thanks,
Freddie
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Old 14-01-2015, 19:47   #583
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Re: OpenCPN Runs on Embedded ARM

Quote:
Originally Posted by nohal View Post
I would just add /usr/lib/arm-linux-gnueabihf/mesa-egl into ld.so.conf and rerun ldconfig


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Nohal:

Tried your suggestion and still get the same results:

Code:
Now lets do cmake of glshim.....
Now lets build glshim.....
/home/bananapi/glshim/src/glx/glx.c: In function ‘xrefresh’:
/home/bananapi/glshim/src/glx/glx.c:158:11: warning: ignoring return value of ‘system’, declared with attribute warn_unused_result [-Wunused-result]
     system("xrefresh");
           ^
/usr/bin/ld: cannot find -lEGL
collect2: error: ld returned 1 exit status
make[3]: *** [lib/libGL.so.1] Error 1
make[2]: *** [src/CMakeFiles/GL.dir/all] Error 2
make[1]: *** [src/CMakeFiles/GL.dir/rule] Error 2
make: *** [GL] Error 2
Building of glshim failed.....
 more information on errors refer to the log file in the build directory.
I'm going over to Cubie to find what is located where on my CubieTruck.

Any other suggestion?

Thanks,
Freddie
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Old 14-01-2015, 20:51   #584
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Re: OpenCPN Runs on Embedded ARM

Yes, of course...
Code:
sudo ln -s /usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so.1 /usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so
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Old 14-01-2015, 21:09   #585
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Re: OpenCPN Runs on Embedded ARM

Quote:
Originally Posted by nohal View Post
Yes, of course...
Code:
sudo ln -s /usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so.1 /usr/lib/arm-linux-gnueabihf/mesa-egl/libEGL.so
Nohal:
Never mind I found the problem, it seems I was right in the first instance. The User Space drivers have not been installed into this distribution, that why glshim can't find what it wants.
I looked in my CubieTruck to see what I could find, and lo and behold here is what I found:
libEGL.so -> libEGL.so.1 -> libEGL.so.1.1.2 which is a symlink to libMali.
That's why glshim fails, because libEGL.so is missing because its put there during the build process of installing the user-space drivers, see this link:Mali binary driver - linux-sunxi.org

So I will get to work adding this work to my build script.

Thanks very much for all you great help!
Freddie
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