System information

OS Platform: ubuntu 16.04
Mobile device (e.g. iPhone 8, Pixel 2, Samsung Galaxy) if the issue happens on mobile device: MI 9(mobile phone）
TensorFlow installed from: Source
TensorFlow version: 2.5.0
Bazel version (if compiling from source): 3.7.2
GCC/Compiler version (if compiling from source): 7.3.0
CUDA/cuDNN version: 10.0
GPU model and memory: Tesla K40m

Describe the problem
I use bazel to build libnnappi_delegate.so.
like this:
bazel build -c opt  --config=android_arm64  --cxxopt="-std=c++11"  --crosstool_top=//external:android/crosstool --host_crosstool_top=@bazel_tools//tools/cpp:toolchain     //tensorflow/lite/delegates/nnapi:nnapi_delegate 
get libnnappi_delegate.so .

How can I know the shared library is “Debug” or “Release” version?
How to “Debug” builds of libnnappi_delegate?
TF issue refuse to answer my question and push me here  .