VAR-SOM-MX6 QT Hello World: Difference between revisions

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{{PageHeader|VAR-SOM-MX6 - QT5 Hello World}} {{DocImage|category1=VAR-SOM-MX6|category2=Yocto}} __toc__
{{PageHeader|VAR-SOM-MX6 - QT5 Hello World}} {{DocImage|category1=VAR-SOM-MX6|category2=Yocto}} __toc__
 
Please follow the QT creator guide: https://variwiki.com/index.php?title=File:YoctoQtCreator.pdf<br>
= Build and install tools =
In addition:<br>
<pre>
https://wiki.qt.io/Basic_Qt_Programming_Tutorial<br>
$ cd ~/var-som-mx6-yocto-fido/
https://wiki.qt.io <br>
$ . ./setup-environment build_x11
http://doc.qt.io/qtcreator/creator-tutorials.html<br>
</pre>
http://doc.qt.io/qt-5/qtexamplesandtutorials.html<br>
edit local.conf and add to the bottom:
<pre>
#
EXTRA_IMAGE_FEATURES = "debug-tweaks tools-debug eclipse-debug"
</pre>
Build:
<pre>
$ bitbake meta-toolchain-qt5
</pre>
Install:
<pre>
$ tmp/deploy/sdk/poky-glibc-x86_64-meta-toolchain-qt5-cortexa9hf-vfp-neon-toolchain-1.8.sh
Keep the default install directory /opt/poky/1.8
</pre>
 
= sample application =
<pre>
$ cd ~/var-som-mx6-yocto-fido/
$ mkdir qtapps
$ cd qtapps
$ cp -a ../build_x11/tmp/work/cortexa9hf-vfp-neon-mx6qdl-poky-linux-gnueabi/qtbase/5.4.2+gitAUTOINC+2cb17c1fb9-r0/build/examples/opengl/hellowindow ./
$ cd hellowindow
 
$ source /opt/poky/1.8/environment-setup-cortexa9hf-vfp-neon-poky-linux-gnueabi
</pre>
 
Create new file qmake.conf:
<pre>
#
CROSS_COMPILE = arm-poky-linux-gnueabi-
ROOTFS = /opt/poky/1.8/sysroots/cortexa9hf-vfp-neon-poky-linux-gnueabi
#
QMAKE_CC = $CROSS_COMPILE-gcc
QMAKE_CXX = $CROSS_COMPILE-g++
QMAKE_LINK = $CROSS_COMPILE-g++
QMAKE_LINK_SHLIB = $CROSS_COMPILE-g++
QMAKE_AR = $CROSS_COMPILE-ar cr
QMAKE_OBJCOPY = $CROSS_COMPILE-objcopy
QMAKE_STRIP = $CROSS_COMPILE-strip
#
QMAKE_LFLAGS_RELEASE = -Wl,-O1,-rpath $ROOTFS/usr/lib
#
QMAKE_INCDIR = $ROOTFS/usr/include
QMAKE_LIBDIR = $ROOTFS/usr/lib
QMAKE_INCDIR_X11 = $ROOTFS/usr/include
QMAKE_LIBDIR_X11 = $ROOTFS/usr/lib
QMAKE_INCDIR_OPENGL = $ROOTFS/usr/include
QMAKE_LIBDIR_OPENGL = $ROOTFS/usr/lib
#
</pre>
 
 
$ qmake
edit the genreated Makefile and insert in the top
<pre>
#
CROSS_COMPILE = arm-poky-linux-gnueabi
ROOTFS = /opt/poky/1.6.1/sysroots/cortexa9hf-vfp-neon-poky-linux-gnueabi
#
OE_QMAKE_CC = $(CROSS_COMPILE)-gcc
OE_QMAKE_CXX = $(CROSS_COMPILE)-g++
OE_QMAKE_LINK = $(CROSS_COMPILE)-g++
OE_QMAKE_LINK_SHLIB = $(CROSS_COMPILE)-g++
OE_QMAKE_AR = $(CROSS_COMPILE)-ar cr
OE_QMAKE_OBJCOPY = $(CROSS_COMPILE)-objcopy
OE_QMAKE_STRIP = $(CROSS_COMPILE)-strip
#
</pre>
<pre>
$ make clean
$ make
copy the hellowindow to your target and run it
export DISPLAY=:0.0
./hellowindow --platform eglfs
</pre>

Latest revision as of 11:56, 10 June 2020