[Tattoofreak]

As instructed here, I am trying to cross-compile Kodi Omega build tools and dependencies for Android ARM architecture on latest Ubuntu 22.04.4 LTS jammy x86_64. Everything goes flawlessly until step no. 5, where after 15 minutes of compiling it fails here:

https://pastebin.com/zP4PKb65

I already tried to compile on another clean Ubuntu installation, but the result is the same.
Any help on how to troubleshoot would be very appreciated.
Thank you in advance!

[Fuzzard]

Most likely need to use an older NDK, or increase the minimum sdk version.

Team Kodi's CI uses NDK 21e for Omega. https://github.com/android/ndk/wiki/Unsu...-Downloads

[Tattoofreak]

Boom, that was it:

Code:

installed-arm-linux-androideabi-21-debug
Dependencies built successfully.
make[1]: Leaving directory '/home/ubuntu/kodi/tools/depends/target'

Thanks a bunch @Fuzzard, now I can dive into compiling an add-on for Android. Hopefully it works :-)

[Tattoofreak]

@Fuzzard I ran into another issue after compiling the according add-on. Are you mayble willing to help me again?
After compiling and generating the according add-on package, I imported it into into the filesystem of my Fairphone 3 Android 13 device, started Kodi and tried to install the package, which was being quit with the following error message:

Code:

...failed due to an invalid file structure.

The following are the steps I took to compile the add-on:


Before compiling the add-on I checked by uname -m on my Android device for the system architecture, which says aarch64. So I obviously set up the building environment to aarch64 as follows:

Code:

cd $HOME/android-tools/android-sdk-linux/cmdline-tools/bin
./sdkmanager --sdk_root=$(pwd)/../.. --licenses
./sdkmanager --sdk_root=$(pwd)/../.. platform-tools
./sdkmanager --sdk_root=$(pwd)/../.. "platforms;android-33"
./sdkmanager --sdk_root=$(pwd)/../.. "build-tools;33.0.1"
./sdkmanager --sdk_root=$(pwd)/../.. "ndk;21.4.7075529"

...

Code:

./configure --with-tarballs=$HOME/android-tools/xbmc-tarballs --host=aarch64-linux-android --with-sdk-path=$HOME/android-tools/android-sdk-linux --with-ndk-path=$HOME/android-tools/android-sdk-linux/ndk/21.4.7075529 --prefix=$HOME/android-tools/xbmc-depends
make -j$(getconf _NPROCESSORS_ONLN)


Then, after the build environment was successfully built, I started to compile and generate the add-on package as follows:

Code:

make -j$(getconf _NPROCESSORS_ONLN) -C tools/depends/target/binary-addons ADDONS="pvr.teleboy"

Code:

cd $HOME/kodi/tools/depends/target/binary-addons/aarch64-linux-android-21-debug
make package-pvr.teleboy

The according add-on .ZIP-package was successfully being created here:

Code:

cd $HOME/kodi/tools/depends/target/binary-addons/aarch64-linux-android-21-debug/pvr.teleboy-prefix/src/pvr.teleboy-build

On the generated add-on .ZIP-package the file structure now looks like this:

Code:

.
├── lib
│   └── kodi
│       └── addons
│           └── pvr.teleboy
│               └── libpvr.teleboy.so
└── share
    └── kodi
        └── addons
            └── pvr.teleboy
                ├── addon.xml
                ├── fanart.jpg
                ├── icon.png
                ├── libpvr.teleboy.so
                ├── LICENSE.txt
                └── resources
                    ├── eit_categories.txt
                    ├── language
                    │   └── resource.language.en_gb
                    │       └── strings.po
                    │   └── resource.language.de_de
                    │       └── strings.po
                    └── settings.xml

Any hints why this is not working to install?
Thank you!

[Tattoofreak]

OK, as I compared the add-on .ZIP-package with the one I compiled successfully for Linux I mentioned the wrong file structure, so I changed it as follows and compressed it manually into a .ZIP-file again:

Code:

             pvr.teleboy
                ├── addon.xml
                ├── fanart.jpg
                ├── icon.png
                ├── libpvr.teleboy.so
                ├── LICENSE.txt
                └── resources
                    ├── eit_categories.txt
                    ├── language
                    │   └── resource.language.en_gb
                    │       └── strings.po
                    │   └── resource.language.de_de
                    │       └── strings.po
                    └── settings.xml

After that I was finally able to install the add-on successfully.
Even I don't know why the file structure is originally being generated completely wrong, maybe someone has an explanation for this  
Thank you again for your help!

[yavni]

Understanding the Error:
The error message you shared on Pastebin (https://pastebin.com/zP4PKb65) indicates an issue during the compilation of a specific source file (ADM/ADM_threads.cpp). It seems the compiler is encountering an undefined reference to the symbol pthread_mutexattr_settype(). This suggests a missing library or header file that provides this function.
Troubleshooting Steps:
Verify Library Installation:
Make sure you have the necessary development libraries for pthreads (POSIX Threads) installed. Run the following command in your terminal:
Bash
sudo apt install libpthread-dev
Use code with caution.
If it's already installed, try reinstalling it:
Bash
sudo apt reinstall libpthread-dev
Use code with caution.
Check Header Search Paths:
The compiler might not be searching the correct directory for the header file that defines pthread_mutexattr_settype(). You might need to adjust the build flags or environment variables.
Consult the Kodi Omega build documentation or community forums for specific instructions on setting header search paths for cross-compiling to Android ARM.
Clean and Rebuild:
Sometimes, a clean slate can help resolve build issues. Try removing any intermediate build files and starting the compilation process again:
Bash
cd <kodi-omega-source-directory> make clean ./configure --target=arm-linux-androideabi make
Use code with caution.
Review Kodi Omega Documentation:
The official Kodi Omega build documentation may have specific instructions for cross-compiling on Ubuntu with ARM targets. Refer to the documentation for any additional configuration steps or troubleshooting advice.
Seek Community Help:
If the above steps don't resolve the issue, consider seeking assistance from the Kodi community forums or developers:
Official Kodi forum: https://forum.kodi.tv/
Kodi GitHub repository: https://github.com/xbmc/xbmc
Additional Considerations:
Compiler Version: Using a compatible compiler version with Kodi Omega's requirements might be necessary.
Dependency Conflicts: Ensure no other libraries installed on your system are interfering with the compilation process.
Disclaimer:
Cross-compiling Kodi Omega is a complex process, and the solutions might vary depending on the specific Kodi version, tools, and environment. This response aims to provide a general troubleshooting framework.
I hope this comprehensive guidance helps you successfully cross-compile Kodi Omega on your Ubuntu system. Feel free to share any further details or error messages you encounter for more tailored assistance.