Re: https://firmwaresecurity.com/2018/06/07/openbsd-gets-redguard-anti-rop-for-clang-x64/
OpenBSD is now getting RETGUARD for ARM platforms, not just Intel/AMD64.
https://undeadly.org/cgi?action=article;sid=20170819230157
Click to access eurobsdcon2018-rop.pdf
https://marc.info/?l=openbsd-cvs&m=152824407931917&w=2