Sign using signer.py located in {HEXAGON_SDK_ROOT}/utils/scripts.
If you encounter the error SDK Environment not set up -> Please run setup_sdk_env script from SDK’s root directory, manually set the HEXAGON_SDK_ROOT environment variable. export HEXAGON_SDK_ROOT='Your DSP tool chain root directory'
Two signature methods
Sign your phone
After signing, all unsigned dsp libraries can run on this phone.
./signer.py sign
Automatically retrieve the device serial number, use it to generate a test signature, and push the test signature to the device.
./signer.py sign -t 0x12345
Same as above, but generate a test signature using the provided serial number.
Sign DSP dynamic library
After signing, the library can run on all unsigned phones.
./signer.py sign -i libdsp_skel.so -o out_dir
Sign the DSP library (libdsp_skel.so) and place the signed library in the out_dir folder.