[GSOC Weekly Update #7-8] Instruction-level dynamic tracing

From: Christos Margiolis <christos_at_freebsd.org>
Date: Thu, 11 Aug 2022 15:01:35 UTC
On week 7, I started diving deeper into DTrace's assembly code in order
to get some architecture-dependent functionality working. On week 8, I
was on vacation so I didn't do anything.

Christos