Android 13 build error

[JWChoi1996]

Hi, I have a problem while building tflite-vx-delegate for Android 13.

I entered the below code,
cmake .. -DCMAKE_TOOLCHAIN_FILE=$NDK_PATH/build/cmake/android.toolchain.cmake -DANDROID_PLATFORM=33 -DANDROID_ABI=arm64-v8a -DCONFIG=vim3_android -DTIM_VX_INSTALL=$WORKSPACE/wksp/tim-vx -DFETCHCONTENT_SOURCE_DIR_TENSORFLOW=$TF_PATH

then, I got error messages.
[100%] Linking CXX shared library libvx_delegate.so ld: error: undefined symbol: tim::transform::LayoutInference(std::__ndk1::shared_ptr<tim::vx::Graph> const&, std::__ndk1::shared_ptr<tim::vx::Context>&, std::__ndk1::map<std::__ndk1::shared_ptr<tim::vx::Tensor>, std::__ndk1::shared_ptr<tim::transform::IPermuteVector>, std::__ndk1::less<std::__ndk1::shared_ptr<tim::vx::Tensor> >, std::__ndk1::allocator<std::__ndk1::pair<std::__ndk1::shared_ptr<tim::vx::Tensor> const, std::__ndk1::shared_ptr<tim::transform::IPermuteVector> > > >) '>>> referenced by delegate_main.cc:640 (/home/jwchoi/Desktop/mobile_streaming/wksp/tflite-vx-delegate/delegate_main.cc:640) '>>> CMakeFiles/vx_delegate.dir/delegate_main.cc.o:(vx::delegate::Delegate::Invoke(vx::delegate::OpData const&, TfLiteContext*, TfLiteNode*)) ~~ ld: error: too many errors emitted, stopping now (use -error-limit=0 to see all errors) clang++: error: linker command failed with exit code 1 (use -v to see invocation) CMakeFiles/vx_delegate.dir/build.make:243: recipe for target 'libvx_delegate.so' failed

I built tim-vx using below code.
cmake .. -DCONFIG=A311D

Did I do something wrong?

[sunshinemyson]

@JWChoi1996 ,

For android build, it take some efforts. We do following steps:

1. Make sure you have our OpenVX driver build properly with Android environment.
2. Build tim-vx with NDK-toolchain and with the openvx driver build by step 1.
3. Build vx-delegate with NDK-toolchain.

Thanks

[JWChoi1996]

Thank you for your answer.
Oh, I didn't know i had to build an OpenVX driver with Android environment.
So, should i have to pre-build OpenVX driver for Android and move it to TARGET folder like 'arm_android9_A311D_6.4.3' for OXVDRV_LIBRARIES?

In addition, when i use -DCONFIG=vim3_android option for building tim-vx, i got below error.
ld: error: ../../arm_android9_A311D_6.4.3/lib/libCLC.so is incompatible with aarch64linux
ld: error: ../../arm_android9_A311D_6.4.3/lib/libGAL.so is incompatible with aarch64linux
ld: error: ../../arm_android9_A311D_6.4.3/lib/libOpenVX.so is incompatible with aarch64linux
ld: error: ../../arm_android9_A311D_6.4.3/lib/libOpenVXU.so is incompatible with aarch64linux
ld: error: ../../arm_android9_A311D_6.4.3/lib/libVSC.so is incompatible with aarch64linux
ld: error: ../../arm_android9_A311D_6.4.3/lib/libarchmodelSw.so is incompatible with aarch64linux
ld: error: ../../arm_android9_A311D_6.4.3/lib/libNNArchPerf.so is incompatible with aarch64linux

Your answer is that when i build OpenVX for android, these errors will be fixed, right?

Thanks.

[sunshinemyson]

@JWChoi1996 ，

Yes, you need to rebuild driver library with Android.