CVS commit: src/sys/arch/m68k/m68k

["Nathanial Sloss" <nat%netbsd.org@localhost>]

Module Name:    src
Committed By:   nat
Date:           Sun Mar 30 04:44:26 UTC 2025

Modified Files:
        src/sys/arch/m68k/m68k: switch_subr.s

Log Message:
Sprinkle nop.

This is the kernel part of addressing the issue with fpu emulation on lc040
cpus.

The idea is that we might be switch from or to an f-line (MMU/FPU Trap)
instruction so prepend a nop to flush the caches.

Addresses part of PR/13078.

The second part to this (patch to binutils/gas) has been submitted upstream
and will be fixed when this part is reviewed and included in our local copy
of binutils or (hopefully) in a later version of binutils from upstream.

See:
https://sourceware.org/pipermail/binutils/2025-March/140270.html


To generate a diff of this commit:
cvs rdiff -u -r1.38 -r1.39 src/sys/arch/m68k/m68k/switch_subr.s

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.