[Development report #9] Improve the kinst DTrace provider

From: Christos Margiolis <christos_at_freebsd.org>
Date: Tue, 30 May 2023 17:35:00 UTC
The RISC-V [1] and ARM64 [2] ports have been submitted to Phabricator
for review. I've also committed various changes and fixes to DTrace in
the meantime, such as adding register bindings for ARM64 [3].


[1] https://reviews.freebsd.org/D39884
[2] https://reviews.freebsd.org/D40337
[3] https://cgit.freebsd.org/src/commit/?id=21a16d55cc15b12809b982c2026a26bcf97fe79b