[GSOC22 Weekly Update #4] Instruction-level dynamic tracing

From: Christos Margiolis <christos_at_freebsd.org>
Date: Mon, 11 Jul 2022 10:12:50 UTC
This week I made a few fixes on the trampoline mechanism and also
started working on on-demand implementing lazy allocation for probes
instead of creating them all at load time.

Christos