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Type this to install the gdbserver type this in the new created terminal: # opkg update # opkg install gdbserver The DX4 has to be connected to the internet. When you want to run or debug the application for the first time you have to go to Run → Run/Debug Configurations, select the configuration you created and click the Run or Debug button. After that is is possible to run the application from the small arrow next to the run and debug buttons at the top of Eclipse. Here you click on the name of your run or debug configuration and he will automatically load the executable to the DX4 and execute it. You can see the output of the application in the Console tab of Eclipse. 6 Qt Qt is a powerful C++ library for creating graphical user interfaces and many more things. It is portable over many operation systems and platforms. There is also a embedded version of Qt called 12/20
Qt/embedded which doesn't need a X server which makes systems very lightweight and fast. In this document we will discuss how to set up Qt using the X server but compiling it for embedded use is not a big difference. 6.1 Setting up Qt/X11 You first need to set up the terminal compilation method described above. Download the Qt sources from http://qt.nokia.com/downloads. Scroll a bit down to "Qt libraries". The file should have a name like qt-everywhere-opensource-src-4.8.2.tar.gz. Extract the sources into you home directory: $ tar xzf Downloads/qteverywhereopensourcesrc4.8.2.tar.gz Change into the Qt directory: $ cd qteverywhereopensourcesrc4.8.2 Copy the modified configuration for Qt and replace the existing one. You will find the modified file in the Anders DX4 wiki: $ cp ../Downloads/qmake.conf mkspecs/qws/linuxarmgnueabig++/qmake.conf Then open the file in mkspecs/qws/linux-arm-gnueabi-g++/qmake.conf and make sure that all the paths to the ELDK are correct. Make sure all required tools like make are installed: $ sudo aptget install buildessential After that use the following command line to configure Qt. The path behind -prefix defines the folder where Qt will be installed. This is the folder for the local computer and the DX4. You should not install it in / because this will cause problems with a local x86 installation of Qt. Execute the following command to configure the Qt sources (hit return after each line): ./configure arch arm xplatform qws/linuxarmgnueabig++ \ forcepkgconfig nomake demos nomake examples noopenssl \ nosqlsqlite nophonon nophononbackend nowebkit \ prefix /usr/local/Trolltech/QtarmX11 \ D QT_RX71_MULTITOUCH confirmlicense When the script finishes without any error continue compiling Qt: $ make j X Where X is the number of cores your CPU has plus one. So type $ make j 5 on a quad core machine. This will speed up things by using parallel compilation. Note: Depending on the speed of your computer this process can take several hours. To install Qt on your local machine (which is required to cross compile) just type $ sudo make install Now you should add /usr/local/Trolltech/Qt-arm-X11/bin to your PATH variable by adding the following line to your users .profile file: export PATH=/usr/local/Trolltech/QtarmX11/bin/:$PATH To open the file type: $ gedit ~/.profile 13/20
Page 1 and 2: Setting up cross compiling environm
Page 3 and 4: Make sure that the installer script
Page 5 and 6: Set a name for the project, we will
Page 7 and 8: Compile the program by hitting the
Page 9 and 10: Right click on the connection and s
Page 11: Go the the Debugger tab. In the are
Page 15 and 16: QMAKE_CXXFLAGS += Wnopsabi 6.2.
Page 17 and 18: Enter a name for the project, I wil
Page 19 and 20: 7 Running an application After you

Setting up cross compiling environment & Qt/X11 ... - Bytemark Hosting

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