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Unable to debug Android App (Windows + Qt Creator 12 + LLDB)

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  • C CodesInChaoss

    0fb31d8f-f5aa-4aa4-b5be-ec2c92d26c8a-image.png @CodesInChaoss

    Why all my KIts' settings get WIPED OUT after the crash?

    C Offline
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    CodesInChaoss
    wrote on last edited by
    #40

    @CodesInChaoss

    It's like I'm debugging on V8 ABI, I need 64 bit compiler and QT Creator keeps reverting settings back to 32bit compiled actually messing up with my settings.

    Now, how a regular developer is even to notice?

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    • C CodesInChaoss

      @CodesInChaoss

      It's like I'm debugging on V8 ABI, I need 64 bit compiler and QT Creator keeps reverting settings back to 32bit compiled actually messing up with my settings.

      Now, how a regular developer is even to notice?

      C Offline
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      CodesInChaoss
      wrote on last edited by
      #41

      By the time I reconfigured everything, it turns our Creator is unable to attach due to ADB being in an 'incompatible state. Thus I'm best off restarting the PC...

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      • C CodesInChaoss

        By the time I reconfigured everything, it turns our Creator is unable to attach due to ADB being in an 'incompatible state. Thus I'm best off restarting the PC...

        C Offline
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        CodesInChaoss
        wrote on last edited by
        #42

        otherwise it would just remain stuck at ```
        D libGRIDNEToken_arm64-v8a.so: QML Debugger: Waiting for connection on port 51672...

        forever
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        • C CodesInChaoss

          otherwise it would just remain stuck at ```
          D libGRIDNEToken_arm64-v8a.so: QML Debugger: Waiting for connection on port 51672...

          forever
          C Offline
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          CodesInChaoss
          wrote on last edited by CodesInChaoss
          #43

          I'm also getting segmentation faults in 'binder:X' threads on UI interactions.

          Yet again, if I ignore these the app runs FINE.

          ideas?

          It's like tapping on an UI element is almost guaranteed to result in such a SigFault.

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          • C CodesInChaoss

            I'm also getting segmentation faults in 'binder:X' threads on UI interactions.

            Yet again, if I ignore these the app runs FINE.

            ideas?

            It's like tapping on an UI element is almost guaranteed to result in such a SigFault.

            C Offline
            C Offline
            CodesInChaoss
            wrote on last edited by CodesInChaoss
            #44

            @CodesInChaoss said in Unable to debug Android App (Windows + Qt Creator 12 + LLDB):

            I'm also getting segmentation faults in 'binder:X' threads on UI interactions.

            Yet again, if I ignore these the app runs FINE.

            ideas?

            It's like tapping on an UI element is almost guaranteed to result in such a SigFault.

            The moment one pastes anything to 9e826d33-8519-41d4-98b8-7c24c76f2c26-image.png

            QT Creator crashed, Lo and Behold

            On my way to reconfigure everything anew.

            this feels like an early Alpha of some wanna-be development framework not something that has been around for many many years.

            Something I paid for.

            Ronel_qtmasterR JonBJ 2 Replies Last reply
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            • C CodesInChaoss

              @CodesInChaoss said in Unable to debug Android App (Windows + Qt Creator 12 + LLDB):

              I'm also getting segmentation faults in 'binder:X' threads on UI interactions.

              Yet again, if I ignore these the app runs FINE.

              ideas?

              It's like tapping on an UI element is almost guaranteed to result in such a SigFault.

              The moment one pastes anything to 9e826d33-8519-41d4-98b8-7c24c76f2c26-image.png

              QT Creator crashed, Lo and Behold

              On my way to reconfigure everything anew.

              this feels like an early Alpha of some wanna-be development framework not something that has been around for many many years.

              Something I paid for.

              Ronel_qtmasterR Offline
              Ronel_qtmasterR Offline
              Ronel_qtmaster
              wrote on last edited by
              #45

              @CodesInChaoss I am pretty sure that it is mostly related to the update process

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              • Ronel_qtmasterR Ronel_qtmaster

                @CodesInChaoss I am pretty sure that it is mostly related to the update process

                C Offline
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                CodesInChaoss
                wrote on last edited by CodesInChaoss
                #46

                @Ronel_qtmaster

                yeah sure but for the fact I've wiped out everything QT related.

                • QT has been wiped CLEAN the entire QT folder
                • everything in AppData QT related WIPED clean as well.
                • NDK/ SDK everything installed anew
                • same stuff on a fresh VM (like I've explaiend)
                1 Reply Last reply
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                • C CodesInChaoss

                  @CodesInChaoss said in Unable to debug Android App (Windows + Qt Creator 12 + LLDB):

                  I'm also getting segmentation faults in 'binder:X' threads on UI interactions.

                  Yet again, if I ignore these the app runs FINE.

                  ideas?

                  It's like tapping on an UI element is almost guaranteed to result in such a SigFault.

                  The moment one pastes anything to 9e826d33-8519-41d4-98b8-7c24c76f2c26-image.png

                  QT Creator crashed, Lo and Behold

                  On my way to reconfigure everything anew.

                  this feels like an early Alpha of some wanna-be development framework not something that has been around for many many years.

                  Something I paid for.

                  JonBJ Offline
                  JonBJ Offline
                  JonB
                  wrote on last edited by JonB
                  #47

                  @CodesInChaoss said in Unable to debug Android App (Windows + Qt Creator 12 + LLDB):

                  Something I paid for.

                  If you mean you have purchased a commercial licence from TQtC you can raise your issues with them for their attention.

                  If you are using the free, open source version then that is not available and here we are just other users of Qt like yourself.

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                  • JonBJ JonB

                    @CodesInChaoss said in Unable to debug Android App (Windows + Qt Creator 12 + LLDB):

                    Something I paid for.

                    If you mean you have purchased a commercial licence from TQtC you can raise your issues with them for their attention.

                    If you are using the free, open source version then that is not available and here we are just other users of Qt like yourself.

                    C Offline
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                    CodesInChaoss
                    wrote on last edited by CodesInChaoss
                    #48

                    @JonB

                    We've bought the 'cheap' startup license or I recall 600USD per year per person.

                    Now, it does not come with technical support (as it tuned out).

                    As we've learned the hard way that is.

                    Now, I've forced GDB manually to neglect any segmentation faults (!!!) and Sig33s (..) by typing the custom arguments to QT Creator by hand as copy-pasting would result it to CRASH.

                    Now I'm able to debug.. I'm not disturbed by QT's internal segmentation faults... I presume? correct me if I'm wrong

                    C JonBJ ekkescornerE 3 Replies Last reply
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                    • C CodesInChaoss

                      @JonB

                      We've bought the 'cheap' startup license or I recall 600USD per year per person.

                      Now, it does not come with technical support (as it tuned out).

                      As we've learned the hard way that is.

                      Now, I've forced GDB manually to neglect any segmentation faults (!!!) and Sig33s (..) by typing the custom arguments to QT Creator by hand as copy-pasting would result it to CRASH.

                      Now I'm able to debug.. I'm not disturbed by QT's internal segmentation faults... I presume? correct me if I'm wrong

                      C Offline
                      C Offline
                      CodesInChaoss
                      wrote on last edited by
                      #49

                      3059620d-fd45-43b9-b28b-145241b9bf98-image.png

                      Something I haven't seen for like 4 years

                      1 Reply Last reply
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                      • C CodesInChaoss

                        @JonB

                        We've bought the 'cheap' startup license or I recall 600USD per year per person.

                        Now, it does not come with technical support (as it tuned out).

                        As we've learned the hard way that is.

                        Now, I've forced GDB manually to neglect any segmentation faults (!!!) and Sig33s (..) by typing the custom arguments to QT Creator by hand as copy-pasting would result it to CRASH.

                        Now I'm able to debug.. I'm not disturbed by QT's internal segmentation faults... I presume? correct me if I'm wrong

                        JonBJ Offline
                        JonBJ Offline
                        JonB
                        wrote on last edited by
                        #50

                        @CodesInChaoss
                        Ah, I did not know about that licence's terms.

                        I'm not sure whether in "QT's internal segmentation faults" you mean Qt itself or Qt Creator. I would be worried about either, certainly if Qt code itself in your application is faulting, but I don't know what "workarounds" you need/have to live with for your situation.

                        Be aware that even without paid support you can raise bugs, against either Qt or Creator, at https://bugreports.qt.io/. People there look at them and respond/fix, regardless of OP's license state. I think Creator is regularly undergoing new releases, I don't know how robust it is for Android stuff.

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                        • JonBJ JonB

                          @CodesInChaoss
                          Ah, I did not know about that licence's terms.

                          I'm not sure whether in "QT's internal segmentation faults" you mean Qt itself or Qt Creator. I would be worried about either, certainly if Qt code itself in your application is faulting, but I don't know what "workarounds" you need/have to live with for your situation.

                          Be aware that even without paid support you can raise bugs, against either Qt or Creator, at https://bugreports.qt.io/. People there look at them and respond/fix, regardless of OP's license state. I think Creator is regularly undergoing new releases, I don't know how robust it is for Android stuff.

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                          CodesInChaoss
                          wrote on last edited by
                          #51

                          @JonB

                          yes yes yes dear friend I know... I've been raising bugs from a different account for years ... we've all been developing QT since then kicked us in the ass years ago and run away with source code.

                          I know I can.

                          Then I get to wait 1-2 years till fix-ups make their way into commercial license and another 2 years into open source.

                          I know.

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                          • C CodesInChaoss

                            @JonB

                            yes yes yes dear friend I know... I've been raising bugs from a different account for years ... we've all been developing QT since then kicked us in the ass years ago and run away with source code.

                            I know I can.

                            Then I get to wait 1-2 years till fix-ups make their way into commercial license and another 2 years into open source.

                            I know.

                            C Offline
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                            CodesInChaoss
                            wrote on last edited by
                            #52

                            As of now

                            • we are manually overriding QT's Segmentation Fault events
                            • overriding Sig33 signals (bionic hardware)

                            Under the above conditions we are able to debug through QT Creator 12 and GDB with Qt 5.15.16 BUT

                            • removal of any breakpoint causes the GDB connection to become corrupted.
                            • no further debugging would be possible

                            Anyway, we CAN live with that (hopefully).

                            The most pressing issue is - how to force the mobile app to actually wait for QT Creator to fully attach?

                            I don't know the details but it seems that QT Creator 12 attached through GDB, the app knows.. BUT... NO BREAKPOINTS WOULD FIRE FOR 2-3 minutes at all (creator would keep showing that it's still attaching during that time period).

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                            • C CodesInChaoss

                              As of now

                              • we are manually overriding QT's Segmentation Fault events
                              • overriding Sig33 signals (bionic hardware)

                              Under the above conditions we are able to debug through QT Creator 12 and GDB with Qt 5.15.16 BUT

                              • removal of any breakpoint causes the GDB connection to become corrupted.
                              • no further debugging would be possible

                              Anyway, we CAN live with that (hopefully).

                              The most pressing issue is - how to force the mobile app to actually wait for QT Creator to fully attach?

                              I don't know the details but it seems that QT Creator 12 attached through GDB, the app knows.. BUT... NO BREAKPOINTS WOULD FIRE FOR 2-3 minutes at all (creator would keep showing that it's still attaching during that time period).

                              C Offline
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                              CodesInChaoss
                              wrote on last edited by
                              #53

                              We may add a Sleep for 5 minutes.. in the initial main() loop

                              but come on folks.. that is not the way we are supposed to work... is it

                              C 1 Reply Last reply
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                              • C CodesInChaoss

                                We may add a Sleep for 5 minutes.. in the initial main() loop

                                but come on folks.. that is not the way we are supposed to work... is it

                                C Offline
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                                CodesInChaoss
                                wrote on last edited by
                                #54
                                I System.out: Debugger has connected
                                I System.out: waiting for debugger to settle...
                                I System.out: waiting for debugger to settle...
                                I System.out: debugger detached?
                                

                                that's also present when debugging with GDB.

                                C 1 Reply Last reply
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                                • C CodesInChaoss
                                  I System.out: Debugger has connected
                                  I System.out: waiting for debugger to settle...
                                  I System.out: waiting for debugger to settle...
                                  I System.out: debugger detached?
                                  

                                  that's also present when debugging with GDB.

                                  C Offline
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                                  CodesInChaoss
                                  wrote on last edited by
                                  #55
                                  Use the "info sharedlibrary" command to see the complete listing.
                                  Do you need "set solib-search-path" or "set sysroot"?The index cache directory name is empty, skipping store.
                                  The index cache directory name is empty, skipping store.
                                  The index cache directory name is empty, skipping store.
                                  Unable to find dynamic linker breakpoint function.
                                  GDB will be unable to debug shared library initializers
                                  and track explicitly loaded dynamic code.
                                  
                                  C 1 Reply Last reply
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                                  • C CodesInChaoss
                                    Use the "info sharedlibrary" command to see the complete listing.
                                    Do you need "set solib-search-path" or "set sysroot"?The index cache directory name is empty, skipping store.
                                    The index cache directory name is empty, skipping store.
                                    The index cache directory name is empty, skipping store.
                                    Unable to find dynamic linker breakpoint function.
                                    GDB will be unable to debug shared library initializers
                                    and track explicitly loaded dynamic code.
                                    
                                    C Offline
                                    C Offline
                                    CodesInChaoss
                                    wrote on last edited by CodesInChaoss
                                    #56

                                    AFTER disabling

                                    • wait for debugger in Android Developer Settings (on mobile)
                                      AND
                                    • after REMOVING the debugged application from the list of debugged applications ON ANDROID DEVICE

                                    we are able to get have breakpoints working WAY SOONER (!!!)
                                    now that i strange on the grounds of its own, is it not.....

                                    but STILL unable to have breakpoints at main() stage working at all.

                                    Yet again we are talking about QT Creator 12 + GDB + Qt 5.15.16 (LTS)

                                    so the pressing issues are

                                    • get to know how to break as soon as in main() - normal thing to be expected
                                    • what the heck are sig-faults in Qt related code?
                                    C 1 Reply Last reply
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                                    • C CodesInChaoss

                                      AFTER disabling

                                      • wait for debugger in Android Developer Settings (on mobile)
                                        AND
                                      • after REMOVING the debugged application from the list of debugged applications ON ANDROID DEVICE

                                      we are able to get have breakpoints working WAY SOONER (!!!)
                                      now that i strange on the grounds of its own, is it not.....

                                      but STILL unable to have breakpoints at main() stage working at all.

                                      Yet again we are talking about QT Creator 12 + GDB + Qt 5.15.16 (LTS)

                                      so the pressing issues are

                                      • get to know how to break as soon as in main() - normal thing to be expected
                                      • what the heck are sig-faults in Qt related code?
                                      C Offline
                                      C Offline
                                      CodesInChaoss
                                      wrote on last edited by
                                      #57

                                      so seems like nobody (as usually) can assist around here even in questions regarding basic debugging.... this community is such a shame...

                                      JoeCFDJ TomZT 2 Replies Last reply
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                                      • C CodesInChaoss

                                        so seems like nobody (as usually) can assist around here even in questions regarding basic debugging.... this community is such a shame...

                                        JoeCFDJ Offline
                                        JoeCFDJ Offline
                                        JoeCFD
                                        wrote on last edited by JoeCFD
                                        #58

                                        @CodesInChaoss Maybe try to do it on Linux and it could be easier. The executable is same.

                                        C 1 Reply Last reply
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                                        • C CodesInChaoss

                                          so seems like nobody (as usually) can assist around here even in questions regarding basic debugging.... this community is such a shame...

                                          TomZT Offline
                                          TomZT Offline
                                          TomZ
                                          wrote on last edited by TomZ
                                          #59

                                          @CodesInChaoss said in Unable to debug Android App (Windows + Qt Creator 12 + LLDB):

                                          so seems like nobody (as usually) can assist around here even in questions regarding basic debugging.... this community is such a shame

                                          A lot of lazy devs here ;-)

                                          I'm especially interested in Qt because of its cross-platform ability. I do 90% of my android development in a native compile, with a window on my desktop. Have had maybe once or twice the wish to have a debugger for my remote Android device, but never found it important enough to install the tools for that. Qt Android tools are too freaking huge.

                                          So, I'm lazy and debug on the native app on my desktop. Then do testing on the device, which rarely gives me issues I could not see on the desktop.

                                          Not saying that what you want is wrong or anything like that. If QtCreator tells you that breakpoints should work, then they should work. And a paying customer should be able to demand attention from the Qt company.

                                          I'm not a paying customer, no support for me.
                                          Plenty of problems with the new Qt company of the last years, gerrit sucks. Jira even more so. As an open source programmer I have zero incentive to report bugs for the LTS releases since I'd wait at minimum a full year for a bugfix. And the quality is just really quite sad for Android. But it still is better than most alternatives I've tried. So here we are :-)

                                          C 1 Reply Last reply
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