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Cross Compiling on BeagleBone Black

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  • SGaistS Offline
    SGaistS Offline
    SGaist
    Lifetime Qt Champion
    wrote on last edited by
    #8

    Did the configure run successfully ?

    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
      SPRB
      wrote on last edited by
      #9

      Yes, configure run successfully without any problem. make is exiting with an error.

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      • SGaistS Offline
        SGaistS Offline
        SGaist
        Lifetime Qt Champion
        wrote on last edited by
        #10

        Can you post the error content ?

        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
          SPRB
          wrote on last edited by
          #11

          Hi,
          This is the error I am getting now,

          /usr/local/angstrom/arm/arm-angstrom-linux-gnueabi/usr/lib/crt1.o: In function _start': init.c:(.text+0x30): undefined reference to main'
          collect2: ld returned 1 exit status
          make[1]: *** [../../lib/libQtCore.so.4.8.6] Error 1
          make[1]: Leaving directory `/home/raghu/Desktop/qt-everywhere-opensource-src-4.8.6/src/corelib'
          make: *** [sub-corelib-make_default-ordered] Error 2

          Please help me to get rid off this error.

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          • SGaistS Offline
            SGaistS Offline
            SGaist
            Lifetime Qt Champion
            wrote on last edited by
            #12

            You changed Qt's version in between ?

            Did you update your cross-compiler also ?

            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
              SPRB
              wrote on last edited by
              #13

              Hi,

              I successfully configured "qt-everywhere-opensource-src-4.8.6", also "make" and "make install" was successful.

              I created a Qt application and compiled it. Even it compiled successfully.
              I deployed it onto the beaglebone black.

              But the binary is not running on the board,
              I have even transferred all the libraries into board. Still the binary is not running.

              It is stating an error “bash: ./Test: No such file or directory”.

              Can you please help me with this as it's very urgent.

              Thank you.

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              • SGaistS Offline
                SGaistS Offline
                SGaist
                Lifetime Qt Champion
                wrote on last edited by
                #14

                The message is pretty self-explanatory, Test doesn't exist

                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
                  SPRB
                  wrote on last edited by
                  #15

                  Hi,

                  When I give "ls -al" it is listing the "Test", So its confirmed that Test binary is present in the path.

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                  • S Offline
                    S Offline
                    SPRB
                    wrote on last edited by
                    #16

                    Hi,
                    I some tried to link the libraries now I am getting this error when I execute the exe in the target system.
                    "./Test : error while loading shared libraries: libEGL.so.1: cannot open shares object file: No such file or directory"

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                    • SGaistS Offline
                      SGaistS Offline
                      SGaist
                      Lifetime Qt Champion
                      wrote on last edited by
                      #17

                      You are missing some dependencies on your target

                      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
                        SPRB
                        wrote on last edited by
                        #18

                        hi,

                        The all the above issues where resolved.

                        But currently I am facing a new issue. I deployed my application successfully into beaglebone black and even the application is running. But no texts are being displayed on the UI. I tried with linking the Qt directory path but i was not successful in that.

                        Can I know what changes needs to be done to get the text displayed on the UI?

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                        • SGaistS Offline
                          SGaistS Offline
                          SGaist
                          Lifetime Qt Champion
                          wrote on last edited by
                          #19

                          Did you deploy the font files ?

                          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
                            SPRB
                            wrote on last edited by
                            #20

                            Yes I have deployed the fonts and have also specified the QT_QWS_FONTDIR to that where the fonts are there.

                            When I set the width and height by giving the following environmental variable: QWS_DISPLAY = LinuxFB:mmWidth=800:mmHeight=480, I could see some of the texts but it is not properly aligned and some texts are still missing.

                            Can I know how can I resolve it?

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                            • SGaistS Offline
                              SGaistS Offline
                              SGaist
                              Lifetime Qt Champion
                              wrote on last edited by
                              #21

                              Are you getting any information on the console stating that there's a problem ?

                              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
                                SPRB
                                wrote on last edited by
                                #22

                                No I am not getting any error on the console. Everything seems to be fine.
                                I even tried by generating the fontdir file for the fonts, thinking it might be searching for that fontdir file. But I could not achieve success out of this.

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                                • S Offline
                                  S Offline
                                  SPRB
                                  wrote on last edited by
                                  #23

                                  I also tried several ways for getting the text displayed. Like setting the QT_QWS_FONTDIR to my font dir, By setting the QWS_DISPLAY, also I tried to run the application by giving the following command: "./Test -qws -font unicode" but couldn't achieve any success.

                                  Please direct me where I am going wrong.
                                  Waiting for an helpful suggestion.

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                                  • SGaistS Offline
                                    SGaistS Offline
                                    SGaist
                                    Lifetime Qt Champion
                                    wrote on last edited by
                                    #24

                                    What output do you get on your console when running your application ?

                                    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
                                      SPRB
                                      wrote on last edited by
                                      #25

                                      The UI is being displayed as a output but none of the texts are shown.

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                                      • SGaistS Offline
                                        SGaistS Offline
                                        SGaist
                                        Lifetime Qt Champion
                                        wrote on last edited by
                                        #26

                                        Are you running it directly on the target or using ssh/serial console ?

                                        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
                                          SPRB
                                          wrote on last edited by
                                          #27

                                          I am deploying the application into target using Qtcreator itself. As Qtcreator provides that options.

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