Build Qt5 for BeagleBone Black

[luca]

Here again.

I compiled without error Qt5 qtbase source.

Now the problem is that I only can start applications in BBB using:
@
./myapp -platform linuxfb
@
But it seems I can't use mouse or keyboard.

Have someone compiled Qt5 for BBB without my problems?

Now I'm also trying to build Qt5 with EGL support but I actually can't.

[jseeQt]

Which distribution do you use? Angstrom? Debian?
just check if you have the EGL, GLESv2 and OpenVG libraries installed on your BBB system, they won't be installed by default.

[luca]

[quote author="jseeQt" date="1385142188"]Which distribution do you use? Angstrom? Debian?
just check if you have the EGL, GLESv2 and OpenVG libraries installed on your BBB system, they won't be installed by default.[/quote]

I'm using Angstrom.
Have you compiled Qt5 with EGL support ?

[messi]

Hi Luca,

if you have time and enough HD space you could try yocto with meta-qt5:
Look here
http://gpupowered.org/node/20
and here
http://gpupowered.org/node/22

Cheers

[jseeQt]

Hey Luca,

I don't know any prebuild packages with the OpenGL/EGL-libraries for BB(B).
You get these libraries if you compile the Sitara Graphics SDK on your own (see http://processors.wiki.ti.com/index.php/Graphics_SDK_Quick_installation_and_user_guide).
This provide you the EGL and the GLESv2 libraries.

You find the current version of the Graphics SDK at:
http://software-dl.ti.com/dsps/dsps_public_sw/sdo_sb/targetcontent/gfxsdk/latest/index_FDS.html

I tested it with Robert Nelson's Debian Wheezy Image:

1. Download the image and copy it to SD card, mount the rootfs on it
2. Download the cross-compiler
3. Download the kernel and compile it
4. Download Graphics SDK and compile it against kernel (instructions see first link)
5. If everything worked fine, boot up BB(B), and run the script /etc/init.d/335x-demo. It will install the modules and libraries. With this libraries, you will be able to compile OpenGL/EGL-stuff (maybe you should then pass the "-opengl es2" option to the Qt configure)

Maybe this steps also works for the Angstrom image...

If some guys are interested, maybe we could create a Debian-package to install the libraries with apitude, apt-get, etc. (like on Raspberry Pi the librasberrypi-dev)

[john3909]

I would be very much interested in Debian-package to install the libraries.

Regards,
John

[vveliev]

+1
I would be interested in Debian-packages as well

Thank you

[jseeQt]

I compiled the OpenGLES and EGL libraries against the 3.8 kernel.
Currently, the "out-of-the-box" wheezy-image from Robert Nelson also includes the 3.8 kernel, so you can test them really quickly. LINK:

https://rcn-ee.net/deb/rootfs/wheezy/debian-7.3-console-armhf-2014-01-24.tar.xz

My question: Do you like a debian package or tar.* archive?
(Have to say, I have no excperience with making a debian package...)

[vveliev]

thanks a lot , for your time ,

i don't really mind any right now :)

Since i'm trying to figure out how everything works ...

[luca]

Hi jseeQt,
I think a tar archive can be enough.

Thanks!

[quote author="jseeQt" date="1391695537"]I compiled the OpenGLES and EGL libraries against the 3.8 kernel.
Currently, the "out-of-the-box" wheezy-image from Robert Nelson also includes the 3.8 kernel, so you can test them really quickly. LINK:

https://rcn-ee.net/deb/rootfs/wheezy/debian-7.3-console-armhf-2014-01-24.tar.xz

My question: Do you like a debian package or tar.* archive?
(Have to say, I have no excperience with making a debian package...)[/quote]

[luca]

jseeQt, why have you compiled a new kernel for you board ?
Is it impossible to use the kernel you already have in the BBB?

Thanks

[jseeQt]

I did not compiled the kernel again.
But the SGX driver (which give us the GLESv2 and EGL libraries) have to be build against kernel sources...so I checked-out the (current) standard 3.8 kernel and compiled the SGX driver.
So: If you compilethe SGX driver against the 3.2 or 3.12 kernel, you cannot use them with a 3.8 kernel.

[luca]

Thanks jseeQt,
I have in my BBB the 3.8.13-bone30 Kernel (i'm using ubuntu-saucy-13.10-armhf-3.8.13-bone30.img.xz from armhf.com).
Can you please tell me where to find the 3.8.13-bone30 kernel source?

Another question, in "this link":http://www.elinux.org/Beagleboard:BeagleBoneBlack#Known_Issues they tell:
@2) SGX support is not currently provided i the 3.8 kernel.@
why can you use it building with 3.8 kernel?

Thanks

[quote author="jseeQt" date="1392114832"]I did not compiled the kernel again.
But the SGX driver (which give us the GLESv2 and EGL libraries) have to be build against kernel sources...so I checked-out the (current) standard 3.8 kernel and compiled the SGX driver.
So: If you compilethe SGX driver against the 3.2 or 3.12 kernel, you cannot use them with a 3.8 kernel.[/quote]

[jseeQt]

Ok, I managed it to run with 3.2, I currently working to compile it for 3.8, but that's now wasted time...
I check it with the 3.2 kernel again...I will post updates here!

[luca]

Ok, thanks!

[quote author="jseeQt" date="1392127023"]Ok, I managed it to run with 3.2, I currently working to compile it for 3.8, but that's now wasted time...
I check it with the 3.2 kernel again...I will post updates here![/quote]

[vveliev]

[quote author="jseeQt" date="1392127023"]Ok, I managed it to run with 3.2, I currently working to compile it for 3.8, but that's now wasted time...
I check it with the 3.2 kernel again...I will post updates here![/quote]

Hey thanks for your help , I'm having a bit of difficulty to figure out correct steps for compiling SGX right now.

but talking about kernel 3.8 it seems to me that it been fixed. Based on discussions from:
1 "Here":https://groups.google.com/forum/#!topic/beagleboard/qQTC7C8g0I8
2 and here "here":http://e2e.ti.com/support/arm/sitara_arm/f/791/p/298596/1087282.aspx#1087282

and i assume that we need "this version (bone40.1) ":https://github.com/RobertCNelson/linux-dev/tree/am33x-v3.8 of kernel where patches have been applied

[XelaG]

@Luca: Did you manage to compile Qt5 for beaglebone black running angstrom distribution ?

[luca]

[quote author="XelaG" date="1392643385"]@Luca: Did you manage to compile Qt5 for beaglebone black running angstrom distribution ?[/quote]

Hi,
yes, I built Qt 5 for BBB but I didn't use angstrom, I used "this":http://www.armhf.com/index.php/boards/beaglebone-black/#saucy .

[XelaG]

[quote author="Luca" date="1392800239"]
Hi,
yes, I built Qt 5 for BBB but I didn't use angstrom, I used "this":http://www.armhf.com/index.php/boards/beaglebone-black/#saucy .
[/quote]

Hello,

I've found this tutorial "Bare metal Qt5":http://armsdr.blogspot.fr/2014/01/bare-metal-qt-52-on-beaglebone-black.html.
I guess you didn't not compile Qt5 with OpenGL ES (SGX driver) support, cause it is not yet support by the kernel for am335x but it might be supported soon. am I right ?

I do need OpenGL ES support cause I want to use QML in my app.
Coul you describe the steps you followed to (cross-)compile Qt5 with BBB ?

[srikanth.koorma]

Can anyone here confirm me that QtSerialPort works with the above configuration on beaglebone Black.