Qt-5.5.1 cross-compile for ARM

DivyaMuthyala

Hi,

I am using arm based device i.e., IMX6 device, Now my requirement is to cross compile qt-5.5.1 for device.
Can you please guide me how to configure qt-5.5.1 for my device.
Thanks in advance.

Hakan AFAT

Download the commercial version of Qt aka Boot2Qt or https://www.ics.com/blog/configuring-qt-creator-raspberry-pi https://wiki.qt.io/RaspberryPi2EGLFS this links may help you to get an idea

DivyaMuthyala

Hi Hakan AFAT,

Thank you for your support, Now I am able to configure Qt-5.5.1.

But Now I am getting issue during make, I am posting error what i am getting.
Please go through it and give me a solution.

In file included from ../../include/QtCore/qbytearray.h:1:0,
from ../../include/QtCore/../../src/corelib/tools/qstring.h:42,
from ../../include/QtCore/qstring.h:1,
from ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:38,
from ../../include/QtCore/qcoreapplication.h:1,
from kernel/qt_gui_pch.h:53:
../../include/QtCore/../../src/corelib/tools/qbytearray.h: In member function 'void QPdfEnginePrivate::xprintf(const char, ...)':
../../include/QtCore/../../src/corelib/tools/qbytearray.h:98:19: note: the mangling of 'va_list' has changed in GCC 4.4
make[3]: *** [.obj/qpdf.o] Error 1
make[3]: Leaving directory /u01/Qt_src/qt-everywhere-enterprise-src-5.5.0/qtbase/src/gui' make[2]: *** [sub-gui-make_first] Error 2 make[2]: Leaving directory /u01/Qt_src/qt-everywhere-enterprise-src-5.5.0/qtbase/src'
make[1]: *** [sub-src-make_first] Error 2
make[1]: Leaving directory `/u01/Qt_src/qt-everywhere-enterprise-src-5.5.0/qtbase'
make: *** [module-qtbase-make_first] Error 2*

SGaist

Hi,

What version of gcc are you using to build Qt ?

DivyaMuthyala

Hi,

We are using gcc-4.6.2 version.

ambershark

@DivyaMuthyala It looks like you have a dirty Qt environment. Some objects were compiled with a different gcc.

I would do a make clean and then reconfigure and remake.

DivyaMuthyala

Hi,

I have done what you have said, still I am facing same issue.

ambershark

@DivyaMuthyala Can you post the full build log or at least the part with the errors... That mangling thing is usually just a warning.

DivyaMuthyala

Hi,

Now I am facing with following error:

/u01/rootfs/usr/lib/libxcb-xkb.a: could not read symbols: File format not recognized
collect2: ld returned 1 exit status
make[6]: *** [../../../../lib/libQt5XcbQpa.so.5.5.0] Error 1
make[6]: Leaving directory /u01/Qt_src/forImx6/qt-everywhere-enterprise-src-5.5.0/qtbase/src/plugins/platforms/xcb' make[5]: *** [sub-xcb_qpa_lib-pro-make_first-ordered] Error 2 make[5]: Leaving directory /u01/Qt_src/forImx6/qt-everywhere-enterprise-src-5.5.0/qtbase/src/plugins/platforms/xcb'
make[4]: *** [sub-xcb-make_first] Error 2
make[4]: Leaving directory /u01/Qt_src/forImx6/qt-everywhere-enterprise-src-5.5.0/qtbase/src/plugins/platforms' make[3]: *** [sub-platforms-make_first] Error 2 make[3]: Leaving directory /u01/Qt_src/forImx6/qt-everywhere-enterprise-src-5.5.0/qtbase/src/plugins'
make[2]: *** [sub-plugins-make_first] Error 2
make[2]: Leaving directory /u01/Qt_src/forImx6/qt-everywhere-enterprise-src-5.5.0/qtbase/src' make[1]: *** [sub-src-make_first] Error 2 make[1]: Leaving directory /u01/Qt_src/forImx6/qt-everywhere-enterprise-src-5.5.0/qtbase'
make: *** [module-qtbase-make_first] Error 2******

I am configuring by using following:

*./configure -commercial -confirm-license -opengl es2 -device linux-imx6-g++ -device-option CROSS_COMPILE=/U02/tools/DOP/imx6/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/arm-none-linux-gnueabi- -sysroot /u01/rootfs -no-gcc-sysroot -I/u01/rootfs/usr/include --hostprefix=/usr/local/Qt-5.5.0

Andrey Shmelew

@DivyaMuthyala

what arm device do u use?

DivyaMuthyala

Hi,

We are using linux based IMx6 SoloLite board.

jsulm

@DivyaMuthyala What does "file /u01/rootfs/usr/lib/libxcb-xkb.a" say?

ambershark

@DivyaMuthyala You are definitely mixing binaries. I was suspicious before but I'm positive now with that last error.

I'll wait and see what your response with the output of the file command is.

DivyaMuthyala

Hi,

Thanks for your support.

Now I am able to configure successfully,but now I am facing issue during compilation.
When I am trying to compile sample application its throwing a following error.

"fatal error: QApplication: No such file or directory"

I am adding in .pro file QT +=widgets, but still I am facing issue.
Can you please help me.
Thanks in advance.

SGaist

Did you re-run qmake after adding that ?

DivyaMuthyala

Yes,I have run qmake and make

SGaist

Are you sure you did install your custom Qt properly ?

DivyaMuthyala

Hi,

I have missed some library soft linking .
I Configured it again and its working fine now.

Thankyou for your support.