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How do I setup a kit to crosscompile for Raspbian for the Pi3?

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  • G graniteDev

    @aha_1980

    No problem:

    ./arm-linux-gnueabihf-g++: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked, interpreter /lib/ld-linux.so.2, for GNU/Linux 2.6.15, stripped
    

    ok....is it a problem that that says intel and I'm running amd?

    aha_1980A Offline
    aha_1980A Offline
    aha_1980
    Lifetime Qt Champion
    wrote on last edited by
    #18

    @graniteDev

    Ok, I think you your problem is, that this toolchain is for 32-Bit PC (i.e. x86), while you are probably running a 64 bit system (i.e. x86_64, you can check with the arch command).

    It might be possible to get this to run, but I'd rather recommend you to get a toolchain that directly runs on your system. you avoid the memory limits of 32 bit architecture with that also.

    So far...

    Qt has to stay free or it will die.

    G 2 Replies Last reply
    0
    • aha_1980A aha_1980

      @graniteDev

      Ok, I think you your problem is, that this toolchain is for 32-Bit PC (i.e. x86), while you are probably running a 64 bit system (i.e. x86_64, you can check with the arch command).

      It might be possible to get this to run, but I'd rather recommend you to get a toolchain that directly runs on your system. you avoid the memory limits of 32 bit architecture with that also.

      So far...

      G Offline
      G Offline
      graniteDev
      wrote on last edited by
      #19

      @aha_1980 Hmm...ok, maybe I missunderstood some of the instruction when it talked about 64bit. I assumed it was talking about the pi, which is 32bit, but yeah it's a brand new Ryzen machine, it's 64 bit.

      I'll have to come back to this later today, but thank you for that. I'll let you know what I find.

      1 Reply Last reply
      1
      • aha_1980A aha_1980

        @graniteDev

        Ok, I think you your problem is, that this toolchain is for 32-Bit PC (i.e. x86), while you are probably running a 64 bit system (i.e. x86_64, you can check with the arch command).

        It might be possible to get this to run, but I'd rather recommend you to get a toolchain that directly runs on your system. you avoid the memory limits of 32 bit architecture with that also.

        So far...

        G Offline
        G Offline
        graniteDev
        wrote on last edited by graniteDev
        #20

        @aha_1980

        arch command on my desktop:
        x86_64

        the pi:
        armv7l

        aha_1980A Pablo J. RoginaP 2 Replies Last reply
        0
        • G graniteDev

          @aha_1980

          arch command on my desktop:
          x86_64

          the pi:
          armv7l

          aha_1980A Offline
          aha_1980A Offline
          aha_1980
          Lifetime Qt Champion
          wrote on last edited by
          #21

          @graniteDev

          Hmm...ok, maybe I missunderstood some of the instruction when it talked about 64bit. I assumed it was talking about the pi, which is 32bit

          Don't worry, as said, cross compiling is advanced stuff ;)

          arch command on my desktop:
          x86_64

          Ok, that proves it.

          Qt has to stay free or it will die.

          1 Reply Last reply
          0
          • G graniteDev

            @aha_1980

            arch command on my desktop:
            x86_64

            the pi:
            armv7l

            Pablo J. RoginaP Offline
            Pablo J. RoginaP Offline
            Pablo J. Rogina
            wrote on last edited by
            #22

            @graniteDev

            arch command on my desktop:
            x86_64

            If you're following the suggested RaspberryPi2EGLFS guide, in step #10 please pay attention to

            If your system is 64 bit you may also edit device option to:

            Upvote the answer(s) that helped you solve the issue
            Use "Topic Tools" button to mark your post as Solved
            Add screenshots via postimage.org
            Don't ask support requests via chat/PM. Please use the forum so others can benefit from the solution in the future

            G 1 Reply Last reply
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            • Pablo J. RoginaP Pablo J. Rogina

              @graniteDev

              arch command on my desktop:
              x86_64

              If you're following the suggested RaspberryPi2EGLFS guide, in step #10 please pay attention to

              If your system is 64 bit you may also edit device option to:

              G Offline
              G Offline
              graniteDev
              wrote on last edited by
              #23

              @Pablo-J.-Rogina

              Ok so I added the options for 64 bit, and looks like it all worked and compiled. So then I went to do the next step which is a test build, but there is no ~/raspi/qt5/bin/qmake

              That directory doesn't exist, so now I really don't know what the hell to do. The previous steps created the qt5 and qt5pi folders so if there are missing directories, now what?

              1 Reply Last reply
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              • G Offline
                G Offline
                graniteDev
                wrote on last edited by
                #24

                Ok so I got a lot farther using a different set of instructions, in fact I got to actually building in Qt Creator!!

                However Qt Creator is failing to upload the file to the raspberry pi:

                mkdir: cannot create directory ‘/opt/widgettest’: Permission denied
                21:09:40: Failed to upload file "/home/brandon/development/build-widgettest-RaspPi-Release/widgettest".
                21:09:40: Deploy step failed.
                Error while building/deploying project widgettest (kit: RaspPi)
                When executing step "Upload files via SFTP"
                

                How do I give Qt permission to do this? Do I need to dissable some security on the pi? Or add "sudo" to some commands in Qt?

                1 Reply Last reply
                0
                • SGaistS Offline
                  SGaistS Offline
                  SGaist
                  Lifetime Qt Champion
                  wrote on last edited by
                  #25

                  You should either use credentials for your Pi that allows to write in that folder, or change the folder for something the user you use to connect to your RPi can write to.

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

                  A 1 Reply Last reply
                  0
                  • SGaistS SGaist

                    You should either use credentials for your Pi that allows to write in that folder, or change the folder for something the user you use to connect to your RPi can write to.

                    A Offline
                    A Offline
                    Asha
                    wrote on last edited by
                    #26

                    even i am also getting same problem,I am very new this qt creator,I am using the ubuntu ,can you say step by step please..

                    Pablo J. RoginaP 1 Reply Last reply
                    0
                    • A Asha

                      even i am also getting same problem,I am very new this qt creator,I am using the ubuntu ,can you say step by step please..

                      Pablo J. RoginaP Offline
                      Pablo J. RoginaP Offline
                      Pablo J. Rogina
                      wrote on last edited by
                      #27

                      @asha said in How do I setup a kit to crosscompile for Raspbian for the Pi3?:

                      can you say step by step please..

                      What have you done so far? Any errors you can share here?

                      Just in case, please refer to any of these guides:

                      1. Cross-compile and deploy Qt 5.12 for Raspberry Pi
                      2. RaspberryPi2EGLFS

                      Upvote the answer(s) that helped you solve the issue
                      Use "Topic Tools" button to mark your post as Solved
                      Add screenshots via postimage.org
                      Don't ask support requests via chat/PM. Please use the forum so others can benefit from the solution in the future

                      1 Reply Last reply
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