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How to add qt libraries to embedded board.

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  • compeoreeC Offline
    compeoreeC Offline
    compeoree
    wrote on last edited by
    #2

    The -prefix option tells your compiled applications where to find Qt.

    A good place to start is to "make install." This will populate the folder, that you passed in with -prefix, on your dev machine. You then take the dev folder and copy it to the embedded device, ensuring that you place it in the same full path.

    As an example, I usually pass /usr/local/qt-5.x to the -prefix option. On my x86 Ubuntu machine, when I run 'make install', I get a /usr/local/qt-5.x folder that contains binaries for the embedded target (they are not valid x86 binaries). I then tar and copy them to the embedded target (Beaglebone) and place them under the /usr/local/qt-5.x folder.

    I then make Qt Creator aware of my new Qt library and compile my app. When I deploy to the embedded target, everything works as expected.

    Running 'ldd <app_name>' might help you track down some library issues.

    Hope that helps

    1 Reply Last reply
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    • SGaistS Offline
      SGaistS Offline
      SGaist
      Lifetime Qt Champion
      wrote on last edited by
      #3

      Hi and welcome to devnet,

      Just copy the folder where your cross-compiled Qt can be found on your desktop machine in the same place on your device root filesystem e.g. something like /usr/local/Trolltech/Qt-4.8.6-Embedded

      Interested in AI ? www.idiap.ch
      Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • S Offline
        S Offline
        Sung Sean
        wrote on last edited by
        #4

        Did you try "export LD_LIBRARY_PATH=/yourQTlibpath/" ?

        1 Reply Last reply
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        • V Offline
          V Offline
          Vijaykumar Ponugoti
          wrote on last edited by
          #5

          Hi,
          Thank you for the support. I have cross compiled Qt4.8.4 and its working on my board.
          Now I am trying to cross compile Qt 5.2. I need few other options to get enabled so I am working on Qt 5.2. But Im getting the following error.
          My qmake.conf file is

          qmake configuration for building with linux-omap5-g++

          MAKEFILE_GENERATOR = UNIX
          CONFIG += incremental gdb_dwarf_index
          QMAKE_INCREMENTAL_STYLE = sublib

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

          cross compiler

          CROSS_COMPILE = arm-linux-gnueabihf-

          directory search

          QMAKE_INCDIR += $$[QT_SYSROOT]/usr/include
          QMAKE_INCDIR += $$[QT_SYSROOT]/usr/include/libxml2
          QMAKE_INCDIR += $$[QT_SYSROOT]/usr/include/freetype2
          QMAKE_INCDIR += $$[QT_SYSROOT]/usr/include/drm
          QMAKE_INCDIR += $$[QT_SYSROOT]/usr/include/gbm

          QMAKE_LIBDIR += $$[QT_SYSROOT]/lib
          QMAKE_LIBDIR += $$[QT_SYSROOT]/usr/lib

          QMAKE_INCDIR_OPENGL_ES2 = $$[QT_SYSROOT]/usr/include/GLES2
          QMAKE_INCDIR_EGL = $$[QT_SYSROOT]/usr/include/EGL
          QMAKE_LIBDIR_OPENGL_ES2 = $$[QT_SYSROOT]/usr/lib
          QMAKE_LIBDIR_EGL = $$[QT_SYSROOT]/usr/lib

          libraries

          #QMAKE_LIBS = -lxml2 -lz -lfreetype -lexpat -lrt -ldl -lfontconfig -lpng -lpthread
          QMAKE_LIBS = -lz -lfreetype -lexpat -lrt -ldl -lfontconfig -lpng -lpthread
          QMAKE_LIBS_OPENGL_ES2 = -lsrv_um -lGLESv2 -lusc
          QMAKE_LIBS_EGL = -lEGL -lIMGegl
          QMAKE_LIBS_THREAD = -lpthread

          DISTRO_OPTS += hard-float

          compiler flags

          QMAKE_CFLAGS_RELEASE = -O3 -march=armv7-a -mtune=cortex-a15 -mfpu=neon-vfpv4 -mfloat-abi=hard -fPIC -mword-relocations -fpermissive
          QMAKE_CXXFLAGS_RELEASE = $$QMAKE_CFLAGS_RELEASE

          compiler tools

          QMAKE_CC = $${CROSS_COMPILE}gcc
          QMAKE_CXX = $${CROSS_COMPILE}g++
          QMAKE_LINK = $${QMAKE_CXX}
          QMAKE_LINK_SHLIB = $${QMAKE_CXX}

          QMAKE_AR = $${CROSS_COMPILE}ar cqs
          QMAKE_OBJCOPY = $${CROSS_COMPILE}objcopy
          QMAKE_STRIP = $${CROSS_COMPILE}strip

          load(qt_config)

          And the error log is as follows.
          medha@C528:~/Qt5.2/qt-everywhere-opensource-src-5.2.0$ export ARCH=arm
          medha@C528:~/Qt5.2/qt-everywhere-opensource-src-5.2.0$ export PATH=$PATH:/home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin
          medha@C528:~/Qt5.2/qt-everywhere-opensource-src-5.2.0$ export CROSS_COMPILE=arm-linux-gnueabihf-
          medha@C528:~/Qt5.2/qt-everywhere-opensource-src-5.2.0$
          medha@C528:~/Qt5.2/qt-everywhere-opensource-src-5.2.0$ ls
          configure qtandroidextras qtmultimedia qttranslations
          configure.bat qtbase qt.pro qtwebkit
          gnuwin32 qtconnectivity qtquick1 qtwebkit-examples
          LGPL_EXCEPTION.txt qtdeclarative qtquickcontrols qtwinextras
          LICENSE.FDL qtdoc qtscript qtx11extras
          LICENSE.GPL qtgraphicaleffects qtsensors qtxmlpatterns
          LICENSE.LGPL qtimageformats qtserialport README
          LICENSE.PREVIEW.COMMERCIAL qtlocation qtsvg
          qtactiveqt qtmacextras qttools
          medha@C528:~/Qt5.2/qt-everywhere-opensource-src-5.2.0$
          medha@C528:~/Qt5.2/qt-everywhere-opensource-src-5.2.0$ ./configure -prefix /usr/qte5.2 -release -make libs -make examples -nomake tools -xplatform linux-omap5-g++ -opengl es2 -confirm-license -opensource -no-xcb -no-pch -verbose -kms -sysroot /home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -v -no-icu

          • cd qtbase
          • /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtbase/configure -top-level -prefix /usr/qte5.2 -release -make libs -make examples -nomake tools -xplatform linux-omap5-g++ -opengl es2 -confirm-license -opensource -no-xcb -no-pch -verbose -kms -sysroot /home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -v -no-icu

          This is the Qt Open Source Edition.

          You are licensed to use this software under the terms of
          the Lesser GNU General Public License (LGPL) versions 2.1.

          You have already accepted the terms of the license.

          arm-linux-gnueabihf-g++ -c -fvisibility=hidden fvisibility.c
          Symbol visibility control enabled.
          arm-linux-gnueabihf-g++ --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -o libtest.so -shared -Wl,-Bsymbolic-functions -fPIC bsymbolic_functions.c
          Symbolic function binding enabled.
          DEFAULT_INCDIRS="/home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/include/c++/4.7.3
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/include/c++/4.7.3/arm-linux-gnueabihf
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/include/c++/4.7.3/backward
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/4.7.3/include
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/4.7.3/include-fixed
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/include
          /home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include
          "
          DEFAULT_LIBDIRS="/home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/lib
          /home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/lib
          /home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/lib
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/4.7.3
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf
          "
          Creating qmake...
          make: Nothing to be done for `first'.
          Running configuration tests...
          Note: PKG_CONFIG_LIBDIR automatically set to /home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/lib/pkgconfig:/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/share/pkgconfig:/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/lib/arm-linux-gnueabihf/pkgconfig
          Note: PKG_CONFIG_SYSROOT_DIR automatically set to /home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs
          Determining architecture... ()
          arm-linux-gnueabihf-g++ -c -pipe --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -g -Wall -W -fPIE -I../../mkspecs/linux-omap5-g++ -I. -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/libxml2 -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/freetype2 -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/drm -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/gbm -o arch.o arch.cpp
          arm-linux-gnueabihf-g++ -o arch arch.o -L/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/lib -L/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/lib -lz -lfreetype -lexpat -lrt -ldl -lfontconfig -lpng -lpthread --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.7.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lpng
          collect2: error: ld returned 1 exit status
          make: *** [arch] Error 1
          Unable to determine architecture!

          Could not determine the target architecture!
          Turn on verbose messaging (-v) to see the final report.
          Determining architecture... ()
          g++ -c -pipe -g -Wall -W -fPIE -I../../mkspecs/linux-g++ -I. -o arch.o arch.cpp
          g++ -o arch arch.o
          { test -n "" && DESTDIR="" || DESTDIR=.; } && test $(gdb --version | sed -e 's,[^0-9][^0-9]([0-9]).([0-9]).,\1\2,;q') -gt 72 && gdb --nx --batch --quiet -ex 'set confirm off' -ex "save gdb-index $DESTDIR" -ex quit 'arch' && test -f arch.gdb-index && objcopy --add-section '.gdb_index=arch.gdb-index' --set-section-flags '.gdb_index=readonly' 'arch' 'arch' && rm -f arch.gdb-index || true
          Found architecture in binary
          CFG_HOST_ARCH="i386"
          CFG_HOST_CPUFEATURES=""
          System architecture: 'unknown'
          Host architecture: 'i386'
          C++11 auto-detection... ()
          arm-linux-gnueabihf-g++ -c -pipe --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -O3 -march=armv7-a -mtune=cortex-a15 -mfpu=neon-vfpv4 compilation terminated.
          make: *** [pulseaudio.o] Error 1
          PulseAudio disabled.
          OpenGL ES 2.x auto-detection... ()
          arm-linux-gnueabihf-g++ -c -pipe --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -O3 -march=armv7-a -mtune=cortex-a15 -mfpu=neon-vfpv4 -mfloat-abi=hard -fPIC -mword-relocations -fpermissive -Wall -W -fPIE -I../../../mkspecs/linux-omap5-g++ -I. -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/GLES2 -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/libxml2 -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/freetype2 -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/drm -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/gbm -o opengles2.o opengles2.cpp
          arm-linux-gnueabihf-g++ -Wl,-O1 -o opengles2 opengles2.o -L/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/lib -L/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/lib -lz -lfreetype -lexpat -lrt -ldl -lfontconfig -lpng -lpthread --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -lsrv_um -lGLESv2 -lusc
          /home/medha/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin/../lib/gcc/arm-linux-gnueabihf/4.7.3/../../../../arm-linux-gnueabihf/bin/ld: cannot find -lpng
          collect2: error: ld returned 1 exit status
          make: *** [opengles2] Error 1
          OpenGL ES 2.x disabled.
          The OpenGL ES 2.0 functionality test 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
          /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtbase/mkspecs/linux-omap5-g++.
          medha@C528:~/Qt5.2/qt-everywhere-opensource-src-5.2.0$

          Please help me in this regard.

          Regards,
          Vijay

          1 Reply Last reply
          0
          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #6

            Do you have libpng for ARM ?

            Interested in AI ? www.idiap.ch
            Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

            V 1 Reply Last reply
            0
            • SGaistS SGaist

              Do you have libpng for ARM ?

              V Offline
              V Offline
              Vijaykumar Ponugoti
              wrote on last edited by
              #7

              Hi SGaist ,
              Thanks for the reply. As you said I have installed libpng and zlib for arm (in my toolchain folder). Now I am able to do configure, make and make install on Qt5.2. But I am still facing problems.
              I have copied all the installed libraries on to my board and when I tried to run application I am facing the following problem.
              **root@dra7xx-evm:~# ./Wid1
              QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed
              QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open failed
              This application failed to start because it could not find or load the Qt platform plugin "xcb".

              Available platform plugins are: eglfs, kms, linuxfb, minimal, minimalegl, offscreen.

              Reinstalling the application may fix this problem.
              Aborted
              root@dra7xx-evm:~# ./Wid1 -platform kms
              QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed
              QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open failed
              QSocketNotifier: Can only be used with threads started with QThread
              QSocketNotifier: Can only be used with threads started with QThread
              QSocketNotifier: Can only be used with threads started with QThread
              root@dra7xx-evm:~# **

              And I observed that when I gave make install in qt5.2 the log contains some errors as followed(sample of Log).

              cd qmldbg_inspector/ && ( test -e Makefile || /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtbase/bin/qmake /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/src/plugins/qmltooling/qmldbg_inspector/qmldbg_inspector.pro -o Makefile ) && make -f Makefile install
              make[5]: Entering directory /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/src/plugins/qmltooling/qmldbg_inspector' install -m 755 -p "../../../../plugins/qml1tooling/libqmldbg_inspector.so" "/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/plugins/qml1tooling/libqmldbg_inspector.so" arm-linux-gnueabihf-strip --strip-unneeded "/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/plugins/qml1tooling/libqmldbg_inspector.so" /bin/sh: 1: arm-linux-gnueabihf-strip: not found make[5]: [install_target] Error 127 (ignored) make[5]: Leaving directory /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/src/plugins/qmltooling/qmldbg_inspector'
              cd qmldbg_tcp_qtquick1/ && ( test -e Makefile || /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtbase/bin/qmake /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/src/plugins/qmltooling/qmldbg_tcp_qtquick1/qmldbg_tcp_qtquick1.pro -o Makefile ) && make -f Makefile install
              make[5]: Entering directory /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/src/plugins/qmltooling/qmldbg_tcp_qtquick1' install -m 755 -p "../../../../plugins/qml1tooling/libqmldbg_tcp_qtdeclarative.so" "/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/plugins/qml1tooling/libqmldbg_tcp_qtdeclarative.so" arm-linux-gnueabihf-strip --strip-unneeded "/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/plugins/qml1tooling/libqmldbg_tcp_qtdeclarative.so" /bin/sh: 1: arm-linux-gnueabihf-strip: not found make[5]: [install_target] Error 127 (ignored) make[5]: Leaving directory /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/src/plugins/qmltooling/qmldbg_tcp_qtquick1'
              make[4]: Leaving directory /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/src/plugins/qmltooling' make[3]: Leaving directory /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/src/plugins'
              make[2]: Leaving directory /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/src' cd tools/ && ( test -e Makefile || /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtbase/bin/qmake /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/tools/tools.pro -o Makefile ) && make -f Makefile install make[2]: Entering directory /home/medha/Qt5.2/qt-everywhere-opensource-src-5.2.0/qtquick1/tools'
              make[2]: Nothing to be done for `install'.

              And I did not find the fonts folder in the installed path..

              Please Help me in this regard.

              Regards,
              Vijay

              1 Reply Last reply
              0
              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #8

                Missing arm-linux-gnueabihf-strip in your PATH ?

                Interested in AI ? www.idiap.ch
                Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                V 1 Reply Last reply
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                • SGaistS SGaist

                  Missing arm-linux-gnueabihf-strip in your PATH ?

                  V Offline
                  V Offline
                  Vijaykumar Ponugoti
                  wrote on last edited by
                  #9

                  Hi SGaist ,
                  No. Its not missing.
                  medha@C528:~/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin$ ls
                  arm-linux-gnueabihf-addr2line* arm-linux-gnueabihf-gfortran*
                  arm-linux-gnueabihf-ar* arm-linux-gnueabihf-gprof*
                  arm-linux-gnueabihf-as* arm-linux-gnueabihf-ld@
                  arm-linux-gnueabihf-c++@ arm-linux-gnueabihf-ld.bfd*
                  arm-linux-gnueabihf-c++filt* arm-linux-gnueabihf-ldd*
                  arm-linux-gnueabihf-cpp* arm-linux-gnueabihf-ld.gold*
                  arm-linux-gnueabihf-ct-ng.config arm-linux-gnueabihf-nm*
                  arm-linux-gnueabihf-elfedit* arm-linux-gnueabihf-objcopy*
                  arm-linux-gnueabihf-g++* arm-linux-gnueabihf-objdump*
                  arm-linux-gnueabihf-gcc@ arm-linux-gnueabihf-pkg-config*
                  arm-linux-gnueabihf-gcc-4.7.3* arm-linux-gnueabihf-pkg-config-real*
                  arm-linux-gnueabihf-gcc-ar* arm-linux-gnueabihf-ranlib*
                  arm-linux-gnueabihf-gcc-nm* arm-linux-gnueabihf-readelf*
                  arm-linux-gnueabihf-gcc-ranlib* arm-linux-gnueabihf-size*
                  arm-linux-gnueabihf-gcov* arm-linux-gnueabihf-strings*
                  arm-linux-gnueabihf-gdb* arm-linux-gnueabihf-strip*

                  Rgds,
                  Vijay

                  1 Reply Last reply
                  0
                  • SGaistS Offline
                    SGaistS Offline
                    SGaist
                    Lifetime Qt Champion
                    wrote on last edited by
                    #10

                    I didn't doubt that you had them (otherwise you wouldn't have been able to cross-compile at all) However can you confirm that "~/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin" is in your PATH environment variable ?

                    Interested in AI ? www.idiap.ch
                    Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

                    V 2 Replies Last reply
                    0
                    • SGaistS SGaist

                      I didn't doubt that you had them (otherwise you wouldn't have been able to cross-compile at all) However can you confirm that "~/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin" is in your PATH environment variable ?

                      V Offline
                      V Offline
                      Vijaykumar Ponugoti
                      wrote on last edited by Vijaykumar Ponugoti
                      #11

                      medha@C528:~$ export PATH=$PATH:/home/medha/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin
                      medha@C528:~$ echo $PATH
                      /usr/lib/lightdm/lightdm:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/home/medha/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin

                      Actually, If something went wrong how the libraries are being created.? And when I gave "file" command on any of the created library file, it informs that the library is cross compiled for arm.
                      And I tried copying the created libraries onto the filesystem and run some Qt application as follows, after setting the LD_LIBRARY_PATH variable.
                      But I am getting problem.
                      On the target

                      root@dra7xx-evm:~# ./Wid1
                      QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed
                      QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open failed
                      This application failed to start because it could not find or load the Qt platform plugin "xcb".

                      Available platform plugins are: eglfs, kms, linuxfb, minimal, minimalegl, offscreen.

                      Reinstalling the application may fix this problem.
                      Aborted
                      root@dra7xx-evm:~# ./Wid1 -platform kms
                      QIconvCodec::convertFromUnicode: using Latin-1 for conversion, iconv_open failed
                      QIconvCodec::convertToUnicode: using Latin-1 for conversion, iconv_open failed
                      QSocketNotifier: Can only be used with threads started with QThread
                      QSocketNotifier: Can only be used with threads started with QThread
                      QSocketNotifier: Can only be used with threads started with QThread
                      root@dra7xx-evm:~#

                      What could be the problem? Am I running the application properly?
                      Please help me.

                      1 Reply Last reply
                      0
                      • SGaistS SGaist

                        I didn't doubt that you had them (otherwise you wouldn't have been able to cross-compile at all) However can you confirm that "~/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/bin" is in your PATH environment variable ?

                        V Offline
                        V Offline
                        Vijaykumar Ponugoti
                        wrote on last edited by
                        #12

                        Hi Gaist,
                        Did you get any idea? what could be the probelm?
                        Plz help me.
                        Regards,
                        Vijay

                        1 Reply Last reply
                        0
                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #13

                          Are you sure that you are using the same Qt on your target than the one you cross-compiled ?

                          Interested in AI ? www.idiap.ch
                          Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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                          0
                          • SGaistS SGaist

                            Are you sure that you are using the same Qt on your target than the one you cross-compiled ?

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                            V Offline
                            Vijaykumar Ponugoti
                            wrote on last edited by Vijaykumar Ponugoti
                            #14

                            @SGaist
                            Yeah, Im sure. I created the make file for application using qmake of the qt5.2 crosscompiled.
                            medha@C528:~/Qtwokspace/Wid1$ ls
                            main.cpp mainwindow.cpp mainwindow.h mainwindow.ui Wid1.pro Wid1.pro.user
                            medha@C528:~/Qtwokspace/Wid1$ /usr/qte5.2/bin/qmake Wid1.pro
                            medha@C528:~/Qtwokspace/Wid1$ ls
                            main.cpp mainwindow.h Makefile Wid1.pro.user
                            mainwindow.cpp mainwindow.ui Wid1.pro
                            medha@C528:~/Qtwokspace/Wid1$ make
                            /usr/qte5.2/bin/uic mainwindow.ui -o ui_mainwindow.h
                            arm-linux-gnueabihf-g++ -c -pipe --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -O3 -march=armv7-a -mtune=cortex-a15 -mfpu=neon-vfpv4 -mfloat-abi=hard -fPIC -mword-relocations -marm -fpermissive -Wall -W -D_REENTRANT -fPIE -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I/usr/qte5.2/mkspecs/linux-omap5-g++ -I. -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtWidgets -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtGui -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtCore -I. -I. -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/libxml2 -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/freetype2 -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/drm -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/gbm -o main.o main.cpp
                            arm-linux-gnueabihf-g++ -c -pipe --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -O3 -march=armv7-a -mtune=cortex-a15 -mfpu=neon-vfpv4 -mfloat-abi=hard -fPIC -mword-relocations -marm -fpermissive -Wall -W -D_REENTRANT -fPIE -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I/usr/qte5.2/mkspecs/linux-omap5-g++ -I. -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtWidgets -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtGui -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtCore -I. -I. -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/libxml2 -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/freetype2 -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/drm -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/gbm -o mainwindow.o mainwindow.cpp
                            /usr/qte5.2/bin/moc -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I/usr/qte5.2/mkspecs/linux-omap5-g++ -I. -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtWidgets -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtGui -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtCore -I. -I. -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/libxml2 -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/freetype2 -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/drm -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/gbm -I/home/medha/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/include/c++/4.7.3 -I/home/medha/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/include/c++/4.7.3/arm-linux-gnueabihf -I/home/medha/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/include/c++/4.7.3/backward -I/home/medha/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/4.7.3/include -I/home/medha/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/4.7.3/include-fixed -I/home/medha/CC/gcc-linaro-arm-linux-gnueabihf-4.7-2013.03-20130313_linux/lib/gcc/arm-linux-gnueabihf/include -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include mainwindow.h -o moc_mainwindow.cpp
                            arm-linux-gnueabihf-g++ -c -pipe --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -O3 -march=armv7-a -mtune=cortex-a15 -mfpu=neon-vfpv4 -mfloat-abi=hard -fPIC -mword-relocations -marm -fpermissive -Wall -W -D_REENTRANT -fPIE -DQT_NO_DEBUG -DQT_WIDGETS_LIB -DQT_GUI_LIB -DQT_CORE_LIB -I/usr/qte5.2/mkspecs/linux-omap5-g++ -I. -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtWidgets -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtGui -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/include/QtCore -I. -I. -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include -I/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/libxml2 -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/freetype2 -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/drm -I../../ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/include/gbm -o moc_mainwindow.o moc_mainwindow.cpp
                            arm-linux-gnueabihf-g++ --sysroot=/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs -Wl,-O1 -Wl,-rpath,/usr/qte5.2/lib -o Wid1 main.o mainwindow.o moc_mainwindow.o -L/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/lib -L/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/lib -L/home/medha/ti-glsdk_dra7xx-evm_7_00_00_04/targetfs/usr/qte5.2/lib -lQt5Widgets -L/usr/qte5.2/lib -lQt5Gui -lQt5Core -lz -lfreetype -lexpat -lrt -ldl -lfontconfig -lpng -lsrv_um -lGLESv2 -lusc -lpthread
                            medha@C528:~/Qtwokspace/Wid1$ ls
                            main.cpp mainwindow.o moc_mainwindow.o Wid1.pro.user
                            main.o mainwindow.ui ui_mainwindow.h
                            mainwindow.cpp Makefile Wid1
                            mainwindow.h moc_mainwindow.cpp Wid1.pro
                            medha@C528:~/Qtwokspace/Wid1$ file Wid1
                            Wid1: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.31, BuildID[sha1]=0x00c92425a3333130034b285d1b15cbc3954c740b, not stripped
                            medha@C528:~/Qtwokspace/Wid1$

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                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #15

                              Cross-compiling is one thing, how did you install Qt on your board ?

                              Interested in AI ? www.idiap.ch
                              Please read the Qt Code of Conduct - https://forum.qt.io/topic/113070/qt-code-of-conduct

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