how to debug with source file

addr2line -e source_file address_where_we_got_error

ex:

addr2line -e out/target/product/gordon_peak/symbols/vendor/lib64/egl/libGLES_intel9.so 00000000002fb631

git format patch

git format patch to take git patch set

git format-patch HEAD~#number of patches you want to create patch files

git format-patch -1 #specific commit id