To run ffi for lua 5.3 in Android, I add arm64 support for the luaffi library, and fix its arm support. Anyone interested in it can open my project page:https://github.com/qtiuto/lua-for-android/tree/master/luaffi. The project is cloned from the ravi ffi library https://github.com/dibyendumajumdar/ravi-ffi. I add lua5.3 integer support for it also. The dynasm tool is changed to add data storage for arm and arm64. The project is build by Android NDK, but I think it's easily built by other build system referring to the raviffi library. Some Android features are added to it when built by NDK. For more information, see https://github.com/qtiuto/lua-for-android/wiki/LUA-FFI.