https://developer.android.com/ndk/guides/stable_apis.html
Here are the documentation entries related to clamping down unauthorized use of other on-device libraries or Linux Syscalls.
https://android-developers.googleblog.com/2016/06/android-ch...
https://android-developers.googleblog.com/2016/06/improving-...
https://android-developers.googleblog.com/2017/07/seccomp-fi...
https://developer.android.com/about/versions/nougat/android-...
https://developer.android.com/about/versions/oreo/android-8....
Small correction, it is actually Android 7.0, not 6.0