Qmake configuration for building with arm-linux-g++ with imx6 linaro

houmingc

i have install qmake, cross compiler, qt open source, buildroot
How to use qmake to link buildroot, cross compiler and qtcreator together?

i tried creating new kit in Qtcreator. It has a big red exclaimation.
I left Device, Sysroot and Qt mkspec empty because i do not know what to fill in.

SGaist

Hi,

Did you first cross-compile Qt 5 ?

houmingc

i did. below is my steps. Pls advice
How does buildroot comes into picture??

Below is the information on how I setup QT environment for building imx6 application.

My environment

lsb_release –a

• Host: Ubuntu 12.04.5 LTS
• Release: 12.04
• Codename: precise
• QT version

.qmake -version

• Qmake version 2.01a
• Using Qt version 4.8.1 in /usr/lib/i386-linux-gnu

Cross-compiler1 path(arm-linux-gnueabihf g++) for Qtcreator
/opt/gcc-linaro-arm-linux-gnueabihf-4.7.2013-20130313_linux/bin/arm-linux-gnueabihf g++
Cross-compiler2 path (arm-none-gnueabi-gcc-4.3.3 g++) for Qtcreator
/opt/codesourcery/arm-2009q1/bin/arm-none-gnueabi-gcc-4.3.3
Configuring qmake.conf to work with cross compiler

qmake configuration for building with arm-none-linux-gnueabi-g++

MAKEFILE_GENERATOR = UNIX
CONFIG += incremental gdb_dwarf_index
QMAKE_INCREMENTAL_STYLE = sublib

#INCPATH +=
/usr/arm-linux-gnueabi/include

INCPATH
#/opt/codesourcery/arm-none-linux-gnueabi/include
/opt/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/arm-linux-gnueabihf/include

include(../../common/g++.conf)
include(../../common/gcc-base-unix.conf)
include(../../common/linux.conf)
include(../../common/qws.conf)

#Compiler Flags to take advantage of the ARM architecture
QMAKE_CFLAGS_RELEASE = -O3 -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp
QMAKE_CXXFLAGS_RELEASE = -O3 -march=armv7-a -mtune=cortex-a8 -mfpu=neon -mfloat-abi=softfp

modifications to g++.conf

QMAKE_CC = /opt/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/arm-linux-gnueabihf/arm-none-linux-gnueabi-gcc
QMAKE_CXX = /opt/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/arm-linux-gnueabihf/arm-none-linux-gnueabi-g++
QMAKE_LINK = /opt/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/arm-linux-gnueabihf/arm-none-linux-gnueabi-g++
QMAKE_LINK_SHLIB = /opt/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/arm-linux-gnueabihf/arm-none-linux-gnueabi-g++

modifications to linux.conf

QMAKE_AR = /opt/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/arm-linux-gnueabihf/arm-none-linux-gnueabi-ar cqs
QMAKE_OBJCOPY = /opt/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/arm-linux-gnueabihf/arm-none-linux-gnueabi-objcopy
QMAKE_STRIP = /opt/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/arm-linux-gnueabihf/arm-none-linux-gnueabi-strip

load(qt_config)

#-----------------------------------------------------------------------------

#/home/common/Desktop/qt-opensource/qt-everywhere-opensource-src-4.7.3/mkspecs

export DISPLAY=:0
#export QT_QWS_FONTDIR=/opt/

Build and install
$ make –j 4
$ sudo make install
Configure Compiler
Build & Run ->Compilers and click Add-> GCC
Select compiler path:
opt/gcc-linaro-arm-linux-gnueabihf-4.7.2013-20130313_linux/bin/arm-linux-gnueabihf g++

Configure Kit
Kits and click add
Call new kit sabrelite
• Name: ARM g++
• Device type: Generic Linux Device
• Sysroot: opt/gcc-linaro-arm-linux-gnueabihf-4.7.2013-20130313_linux/bin/arm-linux-gnueabihf g++
• Compiler: arm-linux-gnueabihf g++
• Qt version: Qt 5.3.0 GCC 32 bit
• Qt mkspec: leave empty

Build Qt Application
Create new project (console)
Edit project (.pro) file
Target.path =/home/root
INSTALL =target

SGaist

Which qmake are you using ? The one from your system Qt or the one you cross-built ?

houmingc

qmake on pc for the system. qmake amendment as above for the target, of course??
you did not answer first question. Can you write more for me to understand your thought, thought process, to absorb some of your know-how

houmingc

It is not working on my target. Pls advice

SGaist

There's something absolutely not clear about your setup, there's Qt 5.3.0 Qt 4.8.1 and 4.7.3 mentioned in there.

Which version of Qt do you want to use on your target, which one did you install on your system ? How did you install it ?

houmingc

Hi

I will announced my steps in another day, they are proven working until i put the image into target.

I did succeed putting the image into target. But in the target, when i touch my dialog boxes. it is removed/deleted reviewing the background. What did i done wrongly. do i need Tslib to be installed to enable touchscreen.

SGaist

I can't answer that, I don't know your software or how it is supposed to run

houmingc

My video has been published at http://youtu.be/LIgq7m1fU5A. Please kindly take a look. And what information i need to discosed

houmingc

Below is my build process
Building and setting up QT environment for IMX 6

Set cross compile path

export PATH=$PATH:/opt/freescale/usr/local/gcc-4.6.2-glibc-2.13-linaro-multilib-2011.12/fsl-linaro-toolchain/bin/

arm-none-linux-gnueabi-gcc -v

You will see “gcc version 4.6.2 20110630 (prerelease) (Freescale MAD -- Linaro 2011.07 -- Built at 2011/08/10 09:20)” at last line

In your qt-everywhere-opensource-src-4.7.4
Modify mkspecs/qws/linux-arm-g++/qmake.conf
QMAKE_CC = arm-none-linux-gnueabi-gcc
QMAKE_CXX = arm-none-linux-gnueabi-g++
QMAKE_LINK = arm-none-linux-gnueabi-g++
QMAKE_LINK_SHLIB = arm-none-linux-gnueabi-g++
QMAKE_AR = arm-none-linux-gnueabi-ar cqs
QMAKE_OBJCOPY = arm-none-linux-gnueabi-objcopy
QMAKE_STRIP = arm-none-linux-gnueabi-strip
In your qt-everywhere-opensource-src-4.7.4

./configure -embedded arm -qt-zlib -qt-libpng -qt-gif -qt-libtiff -qt-libmng -qt-libjpeg -qt-freetype -no-openssl -static -prefix /media/jt_disk2/QT

“/media/jt_disk2/QT” is my QT install path

make
make install
Building your code to target board
Set environment variable

export QTDIR=/media/jt_disk2/QT/

export PATH=$QTDIR/bin:$PATH

export LD_LIBRARY_PATH=$QTDIR/lib:$LD_LIBRARY_PATH

qmake -version

You will see QT version and QT in your install path

In your code dir

qmake -project

qmake

make

Copy binary file to target board
Copy ${QT install}/lib/fonts to target board's /usr/lib/
export QT_QWS_FONTDIR=/usr/lib/fonts
Run QT binary file

./Your_QT -qws

SGaist

Before anything else, if you're not tied to that particularly old version of Qt you should first update to 4.8.6