How to Cross-compile Qt App for I.MX8MQEVK(fsl-image-qt5-validation-imx)

tkashi

Hi community.

I'm trying to cross-compile qt app in QtCreator. But QtCreator doesn't have cross-compilation settings for IMX8M.

So I'm trying to cross-compilation settings, but I can't build qmake for target board(IMX8MQEVK).
The error msg occurred as follows. Do you know the solution?
(opengles2 does not well? Include path is correct?)

ERROR: Feature 'opengles2' was enabled, but the pre-condition 'config.win32 || (!config.watchos && !features.opengl-desktop && libs.opengl_es2)' failed.

ERROR: Feature 'egl' was enabled, but the pre-condition '(features.opengl || features.openvg) && (features.angle || libs.egl)' failed.

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.

I executed "configure" as follows.

./configure -prefix /home/tkashi/Qt/github/qt5/qtbase -device linux-imx8-g++ -device-option CROSS_COMPILE=/usr/bin/arm-linux-gnueabihf- -sysroot $HOME/imx-yocto-bsp/build-xwayland/tmp/sysroots-components/aarch64-mx8m/imx-gpu-viv/usr/lib/ -opensource -confirm-license -nomake tests -nomake examples -egl -opengl es2 -v

qmake.conf is as follows. (I modified qmake.conf from linux-imx6-g++)

include(../common/linux_device_pre.conf)

QMAKE_RPATHLINKDIR_POST += $$[QT_SYSROOT]

QMAKE_LIBDIR_OPENGL_ES2 = $$[QT_SYSROOT]
QMAKE_LIBDIR_EGL        = $$QMAKE_LIBDIR_OPENGL_ES2
QMAKE_LIBDIR_OPENVG     = $$QMAKE_LIBDIR_OPENGL_ES2

QMAKE_INCDIR_EGL        = $$[QT_SYSROOT]
QMAKE_INCDIR_OPENGL_ES2 = $${QMAKE_INCDIR_EGL}
QMAKE_INCDIR_OPENVG     = $${QMAKE_INCDIR_EGL}

QMAKE_LIBS_EGL         += -lEGL
QMAKE_LIBS_OPENGL_ES2  += -lGLESv2 -lEGL -lGAL
QMAKE_LIBS_OPENVG      += -lOpenVG -lEGL -lGAL

IMX8_CFLAGS             = -march=armv8-a -mfpu=neon -DLINUX=1 -DEGL_API_FB=1
QMAKE_CFLAGS           += $$IMX8_CFLAGS
QMAKE_CXXFLAGS         += $$IMX8_CFLAGS

DISTRO_OPTS += hard-float

# Preferred eglfs backend
EGLFS_DEVICE_INTEGRATION = eglfs_viv

include(../common/linux_arm_device_post.conf)

load(qt_config)

My milestones are as follows.

Build linux for target board with Qt(fsl-image-qt5-validation-imx)
- OK. I generated the image files by bitbake.
Run the Sample Qt App on Target Board.(IMX8MQEVK)
- OK. I ran the sample application which is included by fsl-image-qt5-validation-imx.
Install QtCreator to the host PC (ubuntu 18.04 LTS).
- OK. I installed Qtcreator to host PC.
Create the Setting for cross-compile(host:ubuntu 18.04 LTS [x86_x64], target:imx-linux[aarch64]).
- NG. I can't build "qmake" for cross-compilation. I think that "arm - linux - gnueabihf - *" can be used as a compiler

I understand that Qtcreator needs gcc, g ++, gdm, qmake for cross-compilation. Is this understanding correct?

Best Regards,
T.Kashiwagi

tkashi

@tkashi said in How to Cross-compile Qt App for I.MX8MQEVK(fsl-image-qt5-validation-imx):

Hi community.

I solved it self so I will share it.

When using "fsl-image-qt5-validation-imx", you can build QtCreator cross-compilation environment using "meta-toolchain-qt5".

Create a setup of SDK using following bitbake command.

$ bitbake meta-toolchain-qt5

Install Qt5 SDK as follows.

$ ./tmp/deploy/sdk/fsl-imx-xwayland-glibc-x86_64-meta-toolchain-qt5-aarch64-toolchain-4.14-sumo.sh

Add gcc/g++/gdb/qmake Setting to QtCreator
gcc/g++/gdb/qmake is located as follows.

/opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-gcc
/opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-g++
/opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux/usr/bin/aarch64-poky-linux/aarch64-poky-linux-gdb
/opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux/usr/bin/qt5/qmake

Add Sysroot to Kits
Add Sysroot installed with SDK.

/opt/fsl-imx-xwayland/4.14-sumo/sysroots/x86_64-pokysdk-linux

In my environment, binaries for the target could be built with this.

Best Regards,
T.kashiwagi