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Handle functions that use a nop in the arm64 fbt

Description

Handle functions that use a nop in the arm64 fbt

To trace leaf asm functions we can insert a single nop instruction as
the first instruction in a function and trigger off this.

Reviewed by: gnn
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D28132

(cherry picked from commit 28d945204ea1014d7de6906af8470ed8b3311335)

Details

Provenance
andrewAuthored on Jan 13 2021, 11:08 AM
Reviewer
gnn
Differential Revision
D28132: Handle functions that use a nop in the arm64 fbt
Parents
rG24a205e32805: Fix undefined behaviour in the USB controllers
Branches
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