Porting Error (S9/Mate-10) about armnn

[MatthewARM]

Hi @zesty4 thanks for reporting this, we'll look into it.

To help us diagnose the problem, what options have you used when building ArmNN? Which modules have you built, out of Compute Library OpenCL, Compute Library NEON, ArmNN Tensorflow Parser, and ArmNN Caffe Parser?

Many thanks,
Matthew

[zesty4]

Hi Matthew ,
I used the ndk16b build version,
In version arm_compute_library_18.05, I gave the CAFFE_PARSER option.
arm_compute_library has tested neon, neon + cl, and cl versions, but has seen errors in the last posting message.
However, we have succeeded Unitests on the hikey-960 board and are conducting the yolo-> caffe model convert.

If you check the above,
Thank you.

[Surmeh]

Hi @zesty4 ,

We've built ArmNN with Caffe Parser, Tensorflow Parser, Compute Library OpenCL & NEON and Android NDK r14 and succeeded in running the Unit Tests program on Mate 10.
Could you please try using the steps mentioned https://github.com/ARM-software/armnn/blob/master/BuildGuideAndroidNDK.md and let us know if they work for you.

Thanks,
Surabhi

[zesty4]

Hi Surabhi,

Quick response Thank you.
The way you told me is similar to the builder tree I did.
However, the ACL library uses a prebuilt version, and the suspicion is the boost part, and I will inform you by testing again (S9 / MATE) with the method that I gave.

[baynaa7]

I followed the https://github.com/ARM-software/armnn/blob/master/BuildGuideAndroidNDK.md
however, compiler gives following error:

*/toolchain/aarch64-linux-android-ndk-r16b/bin/../lib/gcc/aarch64-linux-android/4.9.x/../../../../aarch64-linux-android/bin/ld: libarmnnUtils.a(Logging.cpp.o): undefined reference to symbol '__android_log_write'
*/toolchain/aarch64-linux-android-ndk-r16b/bin/../sysroot/usr/lib/liblog.so: error adding symbols: DSO missing from command line
clang50++: error: linker command failed with exit code 1 (use -v to see invocation)

these solutions (https://stackoverflow.com/questions/4455941/undefined-reference-to-android-log-print) don't work

what is the problem?

[Surmeh]

Hi @pcub,

Thanks for pointing this out, we'll fix the documentation in our future release.

As a workaround, when building ArmNN, if you replace -DCMAKE_SYSTEM_NAME=Linux with -DCMAKE_SYSTEM_NAME=Android, the error goes away.

I hope this helps,
Surabhi

[baynaa7]

It does not help

[TelmoARM]

Hi pcub,

Could you provide some more information with the error you are currently getting? Surabhi was able to get this working by changing the -DCMAKE_SYSTEM_NAME=Linux to -DCMAKE_SYSTEM_NAME=Android

Thanks,
Telmo

[Surmeh]

Hi @pcub,

Did you manage to solve the problem? Let me know if you need further help on this.

Thanks,
Surabhi

[baynaa7]

Thanks guys, currently I am not working on that, I will inform if I need to work on that part.

[MatthewARM]

Hi @pcub thank you, please reopen this ticket or create a new issue if you have any more problems.