STM32 Qt cross compile

[Marius]

Hello,

I have a STM32MP157C-DK2 board and did the hello world cross compile project with GTK and that work perfectly.

Now I am trying to do cross compiling with Qt Creator. I used the same compiler as the GTK project but Qt Creator give me an error: The compiler (arm-linux-generic-elf-32bit) cannot produce code for the Qt version (x86-linux-generic-elf-64bit).

Where I get a compatible qmake file for this compiler or how to generate it?

Regards Marius

[PatrickF]

Hello,

don't know if it is similar, but have you looked at this post ?

[koan]

You should have qmake inside your toolchain.

Perhaps you forgot to setup the cross compiler environment before calling it with QtCreator?

--

Marco Cavallini | KOAN sas | Bergamo - Italia

embedded software engineering

http://KoanSoftware.com

[Marius]

Thanks for your reply @koan​ .

There is no qmake file in the SDK.

I have no cross compiler environment because I only want to use QtCreator for developing.

Which Toolchain is for this board and include a qmake file?

[koan]

Hi Marius,

as you may know, QtCreator is mainly inteded to be used for Qt development.

Setup QtCreator for GTK is very difficult and if you really med an IDE in this case I suggest to use Eclipse or Visual Studio Code.

--

Marco Cavallini | KOAN sas | Bergamo - Italia

embedded software engineering

http://KoanSoftware.com

[Marius]

After many attempts I managed to generate a qMake file with qt-everywhere 4.8. (worked with this tutorial)

There are no Qt librarys installed on the STM32MP157C-DK2 board. After running my compiled Hello World application I got an error saying that libqtgui4 is missing.

Then I started to build an image with Qt5 librarys. It took many hours but in the end it worked. (this tutorial )

I installed the image on my board and started the sample projects with Qt. It worked, the Qt5 librarys were installed. When I ran my Hello World project the same error occurred. I think it is because my Hello World application was built with Qt 4.8 and the image contains Qt 5.11 librarys.

So I have to create a Qt 5.11 project. In my virtual machine (Ubuntu 18.04) I installed qt-everywhere 5.11.2 and took the "gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf" compiler. My configuration options are these here:

./configure -opensource -confirm-license -prefix /usr/local/Qt-5.11.2-arm -xplatform linux-arm-gnueabi-g++

 My qmake.conf looks like these:

#
# qmake configuration for building with arm-linux-gnueabi-g++
#
 
MAKEFILE_GENERATOR      = UNIX
CONFIG                 += incremental
QMAKE_INCREMENTAL_STYLE = sublib
 
include(../common/linux.conf)
include(../common/gcc-base-unix.conf)
include(../common/g++-unix.conf)
 
# modifications to g++.conf
QMAKE_CC                = /home/myuser/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-gcc
QMAKE_CXX               = /home/myuser/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++
QMAKE_LINK              = /home/myuser/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++
QMAKE_LINK_SHLIB        = /home/myuser/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-g++
 
# modifications to linux.conf
QMAKE_AR                = /home/myuser/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-ar cqs
QMAKE_OBJCOPY           = /home/myuser/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-objcopy
QMAKE_NM                = /home/myuser/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-nm -P
QMAKE_STRIP             = /home/myuser/gcc-linaro-7.4.1-2019.02-x86_64_arm-linux-gnueabihf/bin/arm-linux-gnueabihf-strip
 
load(qt_config)

The paths to my compiler are correct, I already checked this.

I get the following error when running the upper ./configure command

Note: Also available for Linux: linux-clang linux-icc
 
Note: No wayland-egl support detected. Cross-toolkit compatibility disabled.
 
ERROR: The OpenGL functionality tests failed!
You might need to modify the include and library search paths by editing QMAKE_INCDIR_OPENGL[_ES2],
QMAKE_LIBDIR_OPENGL[_ES2] and QMAKE_LIBS_OPENGL[_ES2] in the mkspec for your platform.

How can i fix this error?

I'm happy about every answer.

[koan]

Hello @Marius​ 

I suggest you to follow an easier way adopting our new configuration of the Yocto Project build system

See our recent post about it : http://www.koansoftware.com/en/content/yocto-project-meta-layer-stm32mp1-koan

Let me know if it works on your side too.

--

Marco Cavallini | KOAN sas | Bergamo - Italia

embedded software engineering

http://KoanSoftware.com

[IYetk]

HI Koan,

thanks for the link but why is it broken now ?

[koan]

@IYetk​ Thank you for pointing out the problem.

We just renewed our website and some links are missing.

Now I restored the missing link above and however it now redirects to the official page.

https://koansoftware.com/yocto-project-meta-layer-for-stm32mp1-by-koan/

I hope that this may be useful for you.

Best regards

--

Marco Cavallini | KOAN sas | Bergamo - Italia

embedded software engineering

https://KoanSoftware.com