/usr/share/ada/adainclude/rts-sjlj is in gnat-4.8-sjlj 4.8.2-8ubuntu3.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/share/ada/adainclude/../../../lib/gcc/x86_64-linux-gnu/4.8/rts-sjlj
/usr/share/ada/adainclude/../../../lib/gcc/x86_64-linux-gnu/4.8/rts-sjlj