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Issues with clickable gdb / gdbserver

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    • T Offline
      Talkless @jonius
      last edited by 24 Oct 2022, 17:46

      @jonius said in Issues with clickable gdb / gdbserver:

      Stupid question: Did you build with --debug? And did you build clean (debug and release build cache are not separated)? And did you install the package with the debug build?

      I did forgot to use --debug, but it did not help:

      clickable build --debug --clean --arch arm64 --skip-review
      

      And I don't see --debug flag for install, so not sure how to install debug version if it's separated :confused_face: .

      Volla Phone X

      1 Reply Last reply Reply Quote 0
      • T Offline
        Talkless @jonius
        last edited by 24 Oct 2022, 17:56

        @jonius Maybe I should not use Ubuntu 22.04 VM for development, but older 20.04?

        Volla Phone X

        J 1 Reply Last reply 30 Oct 2022, 17:41 Reply Quote 0
        • J Offline
          jonius @Talkless
          last edited by 30 Oct 2022, 17:41

          @talkless the host OS doesn't play a role. You can use any Linux distro that supports docker and python and even Mac and WSL have some limited support.

          As build and release builds are not separate, clickable install will just install whatever has been built before, may it be a debug build or not.

          I just stumbled upon this line:

          bind [127.0.0.1]:3333: Address already in use
          

          Are you using that port for something already? Could you try to choose another one (on both, gdb and gdbserver)?

          T 2 Replies Last reply 31 Oct 2022, 13:21 Reply Quote 0
          • T Offline
            Talkless @jonius
            last edited by 31 Oct 2022, 13:21

            @jonius said in Issues with clickable gdb / gdbserver:

            @talkless the host OS doesn't play a role

            What I had in mind that maybe there's issues with newer gdb in newer Ubuntu. I did see some asserts of gdb itself while dealing with this debugging issues.

            Chaning port did not help.

            Maybe I have to rebuild all dependencies with --debug? But it makes no sense, you can attach debugger to any application. You might not find symbols you want because of lack of symbols, optimization, etc, but it should at least run....

            Volla Phone X

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            • T Offline
              Talkless @jonius
              last edited by 31 Oct 2022, 14:06

              @jonius said in Issues with clickable gdb / gdbserver:

              @talkless the host OS doesn't play a role.

              Oh, because clickable works from within docker image, right..?

              Volla Phone X

              1 Reply Last reply Reply Quote 0
              • T Offline
                Talkless
                last edited by 31 Oct 2022, 15:37

                I've built dependencies and app to armhf, to try debugging on my old BQ Aquaris E5. clickable gdb gives me illegal instruction:

                $ clickable gdb --arch armhf
                Starting GDB for "/home/vincas/code/puremaps/pure-maps.git/build/arm-linux-gnueabihf/app/install/lib/arm-linux-gnueabihf/bin/pure-maps".
                GNU gdb (Ubuntu 7.11.1-0ubuntu1~16.5) 7.11.1
                Copyright (C) 2016 Free Software Foundation, Inc.
                License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
                This is free software: you are free to change and redistribute it.
                There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
                and "show warranty" for details.
                This GDB was configured as "x86_64-linux-gnu".
                Type "show configuration" for configuration details.
                For bug reporting instructions, please see:
                <http://www.gnu.org/software/gdb/bugs/>.
                Find the GDB manual and other documentation resources online at:
                <http://www.gnu.org/software/gdb/documentation/>.
                For help, type "help".
                Type "apropos word" to search for commands related to "word".
                The target architecture is assumed to be arm
                Reading symbols from /home/vincas/code/puremaps/pure-maps.git/build/arm-linux-gnueabihf/app/install/lib/arm-linux-gnueabihf/bin/pure-maps...done.
                Remote debugging using localhost:3333
                warning: Unable to find dynamic linker breakpoint function.
                GDB will be unable to debug shared library initializers
                and track explicitly loaded dynamic code.
                0xb6fd79c0 in ?? ()
                (gdb) c
                Continuing.
                
                Program received signal SIGILL, Illegal instruction.
                0xb5a3ef48 in ?? ()
                

                The app launches fine if started via Ubuntu Touch app drawer.

                Volla Phone X

                J 1 Reply Last reply 8 Nov 2022, 18:25 Reply Quote 0
                • J Offline
                  jonius
                  last edited by 6 Nov 2022, 21:04

                  All I can say so far is that I can reproduce the issue with Pure Maps, but not with the CMake app template from Clickable.

                  1 Reply Last reply Reply Quote 1
                  • J Offline
                    jonius
                    last edited by 7 Nov 2022, 19:18

                    You can set a break point at main and step through it. This way you will find that it exits because the parser fails to parse command line arguments. it returns at line 112:

                    109	  // command line
                    110	  CmdLineParser *parser = CmdLineParser::instance();
                    111	  if (!parser->parse(app->arguments()))
                    112	    return 0;
                    
                    J 1 Reply Last reply 8 Nov 2022, 20:15 Reply Quote 0
                    • J Offline
                      jonius @Talkless
                      last edited by 8 Nov 2022, 18:25

                      @talkless Could you please try to add libc6-dbg to the dependencies_target before running the gdb command?

                      1 Reply Last reply Reply Quote 0
                      • J Offline
                        jonius @jonius
                        last edited by jonius 11 Aug 2022, 20:15 8 Nov 2022, 20:15

                        Commenting out the CmdLineParser lines allows you to debug Pure Maps btw.

                        1 Reply Last reply Reply Quote 0
                        • T Offline
                          Talkless
                          last edited by 12 Nov 2022, 16:54

                          @jonius Have you actually seen these source lines within gdb? Because there's no symbols for me:

                          Reading symbols from /home/vincas/code/puremaps/pure-maps.git/build/aarch64-linux-gnu/app/install/lib/aarch64-linux-gnu/bin/pure-maps...(no debugging symbols found)...done.
                          

                          Also, commenting out command line parsing did nothing, and even adding qFatal() did not make app to die in normal run. As if clickable install --arch arm64 just installs some old release build...

                          Also, clickable install takes 3 minutes to upload app into my Volla Phone X...

                          Also, clickable launch logs does not show any output, no "logs"...

                          So far, much pain...

                          Volla Phone X

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                          • T Offline
                            Talkless
                            last edited by 12 Nov 2022, 18:11

                            It seems I forgot to add --arch arm64 together with --debug, so I was building.. probably desktop version all the time.

                            Yes, removing CmdLineParser lines allows to keep debugging further.

                            Does that mean that clickable gdb launches application incorrectly, without some expected arguments that where provided via .desktop file (or whatever) for example?

                            Volla Phone X

                            J 1 Reply Last reply 13 Nov 2022, 16:50 Reply Quote 0
                            • J Offline
                              jonius @Talkless
                              last edited by jonius 13 Nov 2022, 16:50

                              @talkless You can run the gdbserver command with --verbose to see the command line parameters. I suspected the --desktop_file_hint which is necessary for the display server. Adding that one as an allowed parameter to the parser doesn't help though. So no idea, to be honest.

                              1 Reply Last reply Reply Quote 0
                              • T Offline
                                Talkless
                                last edited by 27 Nov 2022, 13:05

                                Oh boy, I've updated clickable (it suggested that there's latest version):

                                pip3 install --user --upgrade clickable-ut
                                

                                Updated images:

                                clickable update-images
                                

                                Rebuilt everything:

                                clickable script prepare-deps
                                clickable build --libs --arch arm64
                                clickable build --arch arm64 --debug
                                

                                But it fails to install picotts on final app build step:

                                Installing libraries
                                  /home/vincas/code/puremaps/pure-maps.git/build/aarch64-linux-gnu/s2geometry/install/lib/libs2.so
                                Installing binaries
                                  /home/vincas/code/puremaps/pure-maps.git/build/aarch64-linux-gnu/mimic/install/bin/mimic
                                find: '/home/vincas/code/puremaps/pure-maps.git/build/aarch64-linux-gnu/picotts/install/usr/bin/': No such file or directory
                                Command exited with non-zero exit status 1, see above for details. This is most likely not a problem with Clickable.
                                

                                Not sure why it install pico if it's full build:

                                $ file clickable.yaml 
                                clickable.yaml: symbolic link to packaging/click/full-build.yaml
                                

                                Volla Phone X

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                                • J Offline
                                  jonius
                                  last edited by 28 Nov 2022, 19:31

                                  Are you sure you have picotts built? It makes sense for it to be in the full build, because it offers more languages than mimic.

                                  I just found another bug in the latest version of Clickable related to installing QML modules. Until it is released, you find the fix here: https://gitlab.com/clickable/clickable/-/merge_requests/553

                                  T 1 Reply Last reply 11 Dec 2022, 14:29 Reply Quote 0
                                  • T Offline
                                    Talkless @jonius
                                    last edited by 11 Dec 2022, 14:29

                                    @jonius said in Issues with clickable gdb / gdbserver:

                                    Are you sure you have picotts built?

                                    Picotts seems to be cloned in prepare-deps step, and in build --libs step I see this:

                                    Building picotts
                                    Cached container is outdated
                                    Sending build context to Docker daemon  3.072kB
                                    
                                    
                                    Step 1/3 : FROM clickable/amd64-16.04-arm64:16.04.5
                                     ---> a783c3e92703
                                    Step 2/3 : RUN echo set debconf/frontend Noninteractive | debconf-communicate && echo set debconf/priority critical | debconf-communicate
                                     ---> Using cache
                                     ---> e1b83f8da45f
                                    Step 3/3 : RUN apt-get update && apt-get install -y --force-yes --no-install-recommends libtool:arm64 libpopt-dev:arm64 && apt-get clean
                                     ---> Running in b280d7a9aa37
                                    Get:1 http://ports.ubuntu.com/ubuntu-ports xenial InRelease [247 kB]
                                    Get:2 http://ppa.launchpad.net/bhdouglass/clickable/ubuntu xenial InRelease [15.4 kB]
                                    Get:3 http://archive.ubuntu.com/ubuntu xenial InRelease [247 kB]
                                    Get:4 https://deb.nodesource.com/node_16.x xenial InRelease [4584 B]
                                    Get:5 http://repo.ubports.com xenial InRelease [21.2 kB]
                                    Get:6 http://ppa.launchpad.net/mardy/qbs-on-lts/ubuntu xenial InRelease [15.4 kB]
                                    Get:7 https://deb.nodesource.com/node_16.x xenial/main amd64 Packages [774 B]
                                    Get:8 http://ports.ubuntu.com/ubuntu-ports xenial-updates InRelease [99.8 kB]
                                    Get:9 https://deb.nodesource.com/node_16.x xenial/main arm64 Packages [772 B]
                                    Get:10 http://ppa.launchpad.net/bhdouglass/clickable/ubuntu xenial/main amd64 Packages [784 B]
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                                    Get:14 http://ppa.launchpad.net/bhdouglass/clickable/ubuntu xenial/main arm64 Packages [784 B]
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                                    Get:16 http://repo.ubports.com xenial/main amd64 Packages [2111 kB]
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                                    Get:18 http://ports.ubuntu.com/ubuntu-ports xenial/main arm64 Packages [1466 kB]
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                                    Get:20 http://ports.ubuntu.com/ubuntu-ports xenial/multiverse arm64 Packages [146 kB]
                                    Get:21 http://ports.ubuntu.com/ubuntu-ports xenial/universe arm64 Packages [9493 kB]
                                    Get:22 http://archive.ubuntu.com/ubuntu xenial/restricted amd64 Packages [14.1 kB]
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                                    Get:25 http://repo.ubports.com xenial/main arm64 Packages [2106 kB]
                                    Get:26 http://ports.ubuntu.com/ubuntu-ports xenial-updates/main arm64 Packages [1556 kB]
                                    Get:27 http://ports.ubuntu.com/ubuntu-ports xenial-updates/multiverse arm64 Packages [17.2 kB]
                                    Get:28 http://ports.ubuntu.com/ubuntu-ports xenial-updates/universe arm64 Packages [1466 kB]
                                    Get:29 http://ports.ubuntu.com/ubuntu-ports xenial-security/main arm64 Packages [1118 kB]
                                    Get:30 http://ports.ubuntu.com/ubuntu-ports xenial-security/multiverse arm64 Packages [3332 B]
                                    Get:31 http://ports.ubuntu.com/ubuntu-ports xenial-security/universe arm64 Packages [943 kB]
                                    Get:32 http://archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages [2560 kB]
                                    Get:33 http://archive.ubuntu.com/ubuntu xenial-updates/restricted amd64 Packages [16.4 kB]
                                    Get:34 http://archive.ubuntu.com/ubuntu xenial-updates/multiverse amd64 Packages [26.2 kB]
                                    Get:35 http://archive.ubuntu.com/ubuntu xenial-updates/universe amd64 Packages [1544 kB]
                                    Get:36 http://archive.ubuntu.com/ubuntu xenial-security/main amd64 Packages [2051 kB]
                                    Get:37 http://archive.ubuntu.com/ubuntu xenial-security/restricted amd64 Packages [15.9 kB]
                                    Get:38 http://archive.ubuntu.com/ubuntu xenial-security/multiverse amd64 Packages [8820 B]
                                    Get:39 http://archive.ubuntu.com/ubuntu xenial-security/universe amd64 Packages [984 kB]
                                    Fetched 40.2 MB in 4s (8160 kB/s)
                                    Reading package lists...
                                    Reading package lists...
                                    Building dependency tree...
                                    Reading state information...
                                    Suggested packages:
                                      libtool-doc gfortran | fortran95-compiler gcj-jdk
                                    Recommended packages:
                                      libltdl-dev
                                    The following NEW packages will be installed:
                                      libpopt-dev:arm64 libtool
                                    0 upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
                                    Need to get 232 kB of archives.
                                    After this operation, 1079 kB of additional disk space will be used.
                                    Get:1 http://ports.ubuntu.com/ubuntu-ports xenial/main arm64 libpopt-dev arm64 1.16-10 [38.5 kB]
                                    Get:2 http://archive.ubuntu.com/ubuntu xenial/main amd64 libtool all 2.4.6-0.1 [193 kB]
                                    debconf: delaying package configuration, since apt-utils is not installed
                                    Fetched 232 kB in 0s (815 kB/s)
                                    Selecting previously unselected package libpopt-dev:arm64.
                                    (Reading database ... 
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                                    (Reading database ... 54550 files and directories currently installed.)
                                    Preparing to unpack .../libpopt-dev_1.16-10_arm64.deb ...
                                    Unpacking libpopt-dev:arm64 (1.16-10) ...
                                    Selecting previously unselected package libtool.
                                    Preparing to unpack .../libtool_2.4.6-0.1_all.deb ...
                                    Unpacking libtool (2.4.6-0.1) ...
                                    Setting up libpopt-dev:arm64 (1.16-10) ...
                                    Setting up libtool (2.4.6-0.1) ...
                                    W: --force-yes is deprecated, use one of the options starting with --allow instead.
                                    Removing intermediate container b280d7a9aa37
                                     ---> 339b027b7540
                                    Successfully built 339b027b7540
                                    Successfully tagged clickable/amd64-16.04-arm64:16.04.5-8a63b05d-ed0b-4ef1-89f6-7d72d35c4d74
                                    make: Nothing to be done for 'all'.
                                    make: 'install' is up to date.
                                    Building mimic
                                    

                                    Not sure if these final lines are actually OK:

                                    Successfully built 339b027b7540
                                    Successfully tagged clickable/amd64-16.04-arm64:16.04.5-8a63b05d-ed0b-4ef1-89f6-7d72d35c4d74
                                    make: Nothing to be done for 'all'.
                                    make: 'install' is up to date
                                    

                                    Volla Phone X

                                    J 1 Reply Last reply 11 Dec 2022, 20:13 Reply Quote 0
                                    • J Offline
                                      jonius @Talkless
                                      last edited by 11 Dec 2022, 20:13

                                      @talkless looks like it is correct. How does tree build/aarch64-linux-gnu/picotts/install look like?

                                      T 1 Reply Last reply 18 Dec 2022, 12:29 Reply Quote 0
                                      • T Offline
                                        Talkless @jonius
                                        last edited by 18 Dec 2022, 12:29

                                        @jonius It's empty:

                                        $ tree build/aarch64-linux-gnu/picotts/install
                                        build/aarch64-linux-gnu/picotts/install
                                        
                                        0 directories, 0 files
                                        

                                        Other sibling directories (like mimic) are NOT empty.

                                        Permissions of picotts are right.

                                        picotts directory of x86_64-linux-gnu and arm-linux-gnueabihf are NOT empty too.

                                        Volla Phone X

                                        J 1 Reply Last reply 18 Dec 2022, 16:12 Reply Quote 0
                                        • J Offline
                                          jonius @Talkless
                                          last edited by 18 Dec 2022, 16:12

                                          @talkless Can you try building it again with verbose output (clickable build --libs picotts --arch arm64 --verbose)?

                                          T 1 Reply Last reply 15 Jan 2023, 13:46 Reply Quote 0
                                          • T Offline
                                            Talkless @jonius
                                            last edited by 15 Jan 2023, 13:46

                                            @jonius said in Issues with clickable gdb / gdbserver:

                                            @talkless Can you try building it again with verbose output (clickable build --libs picotts --arch arm64 --verbose)?

                                            Here's verbose build output:

                                            https://paste.debian.net/1267273/

                                            Volla Phone X

                                            J 1 Reply Last reply 15 Jan 2023, 18:58 Reply Quote 0
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