From d0a1005038916a8061ca63e589ff6f27d5aeb8ec Mon Sep 17 00:00:00 2001
From: Jonathan Gray <jsg@cvs.openbsd.org>
Date: Fri, 26 Jul 2024 00:23:58 +0000
Subject: use the fp target attribute with fpu_save()/fpu_load()

otherwise clang 18 errors when inline assembly uses floating point
registers with nofp in -march

ok kettenis@
---
 sys/arch/arm64/arm64/fpu.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

(limited to 'sys')

diff --git a/sys/arch/arm64/arm64/fpu.c b/sys/arch/arm64/arm64/fpu.c
index 0285ef78558..a50cf631968 100644
--- a/sys/arch/arm64/arm64/fpu.c
+++ b/sys/arch/arm64/arm64/fpu.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: fpu.c,v 1.1 2022/01/01 18:52:36 kettenis Exp $	*/
+/*	$OpenBSD: fpu.c,v 1.2 2024/07/26 00:23:57 jsg Exp $	*/
 /*
  * Copyright (c) 2022 Mark Kettenis <kettenis@openbsd.org>
  *
@@ -22,6 +22,7 @@
 
 #include <machine/armreg.h>
 
+__attribute__((target("+fp")))
 void
 fpu_save(struct proc *p)
 {
@@ -74,6 +75,7 @@ fpu_save(struct proc *p)
 	fp->fp_cr = READ_SPECIALREG(fpcr);
 }
 
+__attribute__((target("+fp")))
 void
 fpu_load(struct proc *p)
 {
-- 
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