I am trying "Cross-compiling Arm NN for the Raspberry Pi and TensorFlow"
I have followed exact steps mentioned in the below link,
But I got below error when compiling sample application on raspberry pi.
pi@raspberrypi:~/armnn-dist $ export LD_LIBRARY_PATH=/home/pi/armnn-dist/armnn/lib
pi@raspberrypi:~/armnn-dist $ g++ SimpleSample.cpp -I/home/pi/armnn-dist/armnn/include -I/home/pi/armnn-dist/boost/include -L/home/pi/armnn-dist/armnn/lib -larmnn -larmnnTfParser -lprotobuf -o SimpleSample
/home/pi/armnn-dist/armnn/lib/libarmnn.so: undefined reference to `powf@GLIBC_2.27'
/home/pi/armnn-dist/armnn/lib/libarmnn.so: undefined reference to `expf@GLIBC_2.27'
/home/pi/armnn-dist/armnn/lib/libarmnn.so: undefined reference to `logf@GLIBC_2.27'
collect2: error: ld returned 1 exit status
g++ should be changed to use the cross-compiler g++-arm-linux-gnueabihf you used before for crossing compiling the ArmNN and ComputeLibrary, please try again. Let us know if you have further problems with this.
Should be arm-linux-gnueabihf-g++, sorry for the typo.
Please refer https://github.com/ARM-software/armnn/blob/branches/armnn_19_02/BuildGuideCrossCompilation.md.
In raspberry PI, g++ is cross compiler . g++ is a symbolic link to /usr/bin/arm-linux-gnueabihf-g++-6
Instead I suspect on the cross compiler version used in HOST and Pi Target, and they are built with different glibc version.On Host(Ubuntu 18.04)
gcc version 7.3.0 (Ubuntu/Linaro 7.3.0-27ubuntu1~18.04)
gcc version 6.3.0 20170516 (Raspbian 6.3.0-18+rpi1+deb9u1)
OK. I have resolved it.
It was due to the mismatch in the cross compiler version in the host and the target.
I built a new cross-compiler targeting arm-linux-gnueabihf- for host ubuntu18.04/x86_64 with gcc - 6.3 and glibc - 2.4.
Now it works fine.
Hey any chance you can outline exactly how you did that? Because my virtual machine is not allowing me to install gcc 6.3, only 6.5. And how did you change your gblic? Many thanks.
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