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Cannot debug shared library

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  • jsulmJ jsulm

    @kncy9876 said in Cannot debug shared library:

    and I have built those with debug using windeployqt

    windeployqt does not build anything.
    Is the shared lib you're trying to debug a debug or release build? The error clearly states that it is not a debug build.

    K Offline
    K Offline
    kncy9876
    wrote on last edited by
    #3

    @jsulm said in Cannot debug shared library:

    @kncy9876 said in Cannot debug shared library:

    and I have built those with debug using windeployqt

    windeployqt does not build anything.
    Is the shared lib you're trying to debug a debug or release build? The error clearly states that it is not a debug build.

    Its definitely debug, I have all applicable settings set for debug too (separate debug info, qml debugging and profilling, qmake build configuration)

    qmake command
    C:/Qt/5.12.11/msvc2017/bin/qmake.exe C:\Users\<path_tp_proj_file>.pro -spec win32-msvc "CONFIG+=debug" "CONFIG+=qml_debug" "CONFIG+=force_debug_info" "CONFIG+=separate_debug_info" && C:/Qt/Tools/QtCreator/bin/jom/jom.exe qmake_all

    jsulmJ 1 Reply Last reply
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    • K kncy9876

      @jsulm said in Cannot debug shared library:

      @kncy9876 said in Cannot debug shared library:

      and I have built those with debug using windeployqt

      windeployqt does not build anything.
      Is the shared lib you're trying to debug a debug or release build? The error clearly states that it is not a debug build.

      Its definitely debug, I have all applicable settings set for debug too (separate debug info, qml debugging and profilling, qmake build configuration)

      qmake command
      C:/Qt/5.12.11/msvc2017/bin/qmake.exe C:\Users\<path_tp_proj_file>.pro -spec win32-msvc "CONFIG+=debug" "CONFIG+=qml_debug" "CONFIG+=force_debug_info" "CONFIG+=separate_debug_info" && C:/Qt/Tools/QtCreator/bin/jom/jom.exe qmake_all

      jsulmJ Offline
      jsulmJ Offline
      jsulm
      Lifetime Qt Champion
      wrote on last edited by
      #4

      @kncy9876 said in Cannot debug shared library:

      qmake command

      This is to build your app, right?
      How did you build the lib?

      https://forum.qt.io/topic/113070/qt-code-of-conduct

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      • jsulmJ jsulm

        @kncy9876 said in Cannot debug shared library:

        qmake command

        This is to build your app, right?
        How did you build the lib?

        K Offline
        K Offline
        kncy9876
        wrote on last edited by
        #5

        @jsulm said in Cannot debug shared library:

        @kncy9876 said in Cannot debug shared library:

        qmake command

        This is to build your app, right?
        How did you build the lib?

        No this is to build the dll. Our app is built using a different compiler/ide totally. Our exe then loads this dll at runtime. The dll is the ui of our application which triggers callbacks to the exe when user clicks.
        So to debug our ui I try and attach to the running application but get the message about the dll not being a debug build.

        Christian EhrlicherC jsulmJ 2 Replies Last reply
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        • K kncy9876

          @jsulm said in Cannot debug shared library:

          @kncy9876 said in Cannot debug shared library:

          qmake command

          This is to build your app, right?
          How did you build the lib?

          No this is to build the dll. Our app is built using a different compiler/ide totally. Our exe then loads this dll at runtime. The dll is the ui of our application which triggers callbacks to the exe when user clicks.
          So to debug our ui I try and attach to the running application but get the message about the dll not being a debug build.

          Christian EhrlicherC Offline
          Christian EhrlicherC Offline
          Christian Ehrlicher
          Lifetime Qt Champion
          wrote on last edited by
          #6

          So is this DLL built with debug information and is the corresponding pdb file (if you use MSVC) visible to the debugger?

          Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
          Visit the Qt Academy at https://academy.qt.io/catalog

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          • K kncy9876

            @jsulm said in Cannot debug shared library:

            @kncy9876 said in Cannot debug shared library:

            qmake command

            This is to build your app, right?
            How did you build the lib?

            No this is to build the dll. Our app is built using a different compiler/ide totally. Our exe then loads this dll at runtime. The dll is the ui of our application which triggers callbacks to the exe when user clicks.
            So to debug our ui I try and attach to the running application but get the message about the dll not being a debug build.

            jsulmJ Offline
            jsulmJ Offline
            jsulm
            Lifetime Qt Champion
            wrote on last edited by
            #7

            @kncy9876 said in Cannot debug shared library:

            So to debug our ui I try and attach to the running application but get the message about the dll not being a debug build.

            Because the dll is NOT build in debug mode. Build it in debug mode if you want to debug it...

            https://forum.qt.io/topic/113070/qt-code-of-conduct

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            • jsulmJ jsulm

              @kncy9876 said in Cannot debug shared library:

              So to debug our ui I try and attach to the running application but get the message about the dll not being a debug build.

              Because the dll is NOT build in debug mode. Build it in debug mode if you want to debug it...

              K Offline
              K Offline
              kncy9876
              wrote on last edited by
              #8

              @jsulm said in Cannot debug shared library:

              @kncy9876 said in Cannot debug shared library:

              So to debug our ui I try and attach to the running application but get the message about the dll not being a debug build.

              Because the dll is NOT build in debug mode. Build it in debug mode if you want to debug it...

              I'm sorry if I didnt make it clear, but the dll is built in debug mode. It has the pdb file alongside it. It 100% is built with debug. I can see the difference between release/debug builds.
              By the way I am not debugging the application, I am debugging the dll. So using QT to attach to my exe

              Christian EhrlicherC 1 Reply Last reply
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              • K kncy9876

                @jsulm said in Cannot debug shared library:

                @kncy9876 said in Cannot debug shared library:

                So to debug our ui I try and attach to the running application but get the message about the dll not being a debug build.

                Because the dll is NOT build in debug mode. Build it in debug mode if you want to debug it...

                I'm sorry if I didnt make it clear, but the dll is built in debug mode. It has the pdb file alongside it. It 100% is built with debug. I can see the difference between release/debug builds.
                By the way I am not debugging the application, I am debugging the dll. So using QT to attach to my exe

                Christian EhrlicherC Offline
                Christian EhrlicherC Offline
                Christian Ehrlicher
                Lifetime Qt Champion
                wrote on last edited by Christian Ehrlicher
                #9

                @kncy9876 said in Cannot debug shared library:

                QT to attach to my

                Qt is a library... It can not attach to anything.

                Qt Online Installer direct download: https://download.qt.io/official_releases/online_installers/
                Visit the Qt Academy at https://academy.qt.io/catalog

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                • Christian EhrlicherC Christian Ehrlicher

                  @kncy9876 said in Cannot debug shared library:

                  QT to attach to my

                  Qt is a library... It can not attach to anything.

                  K Offline
                  K Offline
                  kncy9876
                  wrote on last edited by
                  #10

                  @Christian-Ehrlicher said in Cannot debug shared library:

                  @kncy9876 said in Cannot debug shared library:

                  QT to attach to my

                  Qt is a library... It can not attach to anything.

                  Like this
                  2022a7bd-372a-4338-8a54-a85b6e0fd5d2-image.png

                  jsulmJ 1 Reply Last reply
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                  • K kncy9876

                    @Christian-Ehrlicher said in Cannot debug shared library:

                    @kncy9876 said in Cannot debug shared library:

                    QT to attach to my

                    Qt is a library... It can not attach to anything.

                    Like this
                    2022a7bd-372a-4338-8a54-a85b6e0fd5d2-image.png

                    jsulmJ Offline
                    jsulmJ Offline
                    jsulm
                    Lifetime Qt Champion
                    wrote on last edited by
                    #11

                    @kncy9876 You're showing QtCreator, Qt is a C++ framework

                    https://forum.qt.io/topic/113070/qt-code-of-conduct

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                    • jsulmJ jsulm

                      @kncy9876 You're showing QtCreator, Qt is a C++ framework

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                      kncy9876
                      wrote on last edited by
                      #12

                      @jsulm said in Cannot debug shared library:

                      @kncy9876 You're showing QtCreator, Qt is a C++ framework

                      Apologies I should have mentioned QT Creator was the tool I was using to debug

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                      • K kncy9876

                        @jsulm said in Cannot debug shared library:

                        @kncy9876 You're showing QtCreator, Qt is a C++ framework

                        Apologies I should have mentioned QT Creator was the tool I was using to debug

                        K Offline
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                        kncy9876
                        wrote on last edited by
                        #13

                        @jsulm This seems like a similar issue??? https://forum.qt.io/post/298329

                        Serhan KarsS 1 Reply Last reply
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                        • K kncy9876

                          @jsulm This seems like a similar issue??? https://forum.qt.io/post/298329

                          Serhan KarsS Offline
                          Serhan KarsS Offline
                          Serhan Kars
                          wrote on last edited by
                          #14

                          @kncy9876 Are you sure your application (not the library) is built in debug mode?

                          K 1 Reply Last reply
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                          • S Offline
                            S Offline
                            SimonSchroeder
                            wrote on last edited by
                            #15

                            You are attaching to the exe and not the dll. If that is not a debug build it is quite plausible to see the warning message. It doesn't mean that it won't work for the dll. (Though I have not experience debugging a dll and I'm not sure if it should work.)

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                            • Serhan KarsS Serhan Kars

                              @kncy9876 Are you sure your application (not the library) is built in debug mode?

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                              kncy9876
                              wrote on last edited by
                              #16
                              This post is deleted!
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