From: miod <miod@openbsd.org>
Date: Fri, 2 Sep 2022 10:12:46 +0000 (+0000)
Subject: Remove non-_KERNEL code path for division by zero. This will allow the
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=d18bfbf375cb673955eee4782936f9837abf9793;p=openbsd

Remove non-_KERNEL code path for division by zero. This will allow the
bootblocks to shrink a little.
---

diff --git a/sys/lib/libkern/arch/sh/sdivsi3.S b/sys/lib/libkern/arch/sh/sdivsi3.S
index 23153632033..696dd047d36 100644
--- a/sys/lib/libkern/arch/sh/sdivsi3.S
+++ b/sys/lib/libkern/arch/sh/sdivsi3.S
@@ -62,32 +62,5 @@ NENTRY(__sdivsi3)
 	 addc	r2, r0
 
 div_by_zero:
-#ifdef _KERNEL
 	rts
 	 mov	#0, r0
-#else
-	mov.l	r14, @-r15
-	sts.l	pr, @-r15
-	mov	r15, r14
-
-	mov.l	L_raise, r1
-#ifdef PIC
-1:	bsrf	r1
-#else
-	jsr	@r1
-#endif
-	 mov	#8, r4		/* delay slot.  8 <- SIGFPE. */
-	mov	#0, r0
-
-	lds.l	@r15+, pr
-	rts
-	 mov.l	@r15+, r14
-
-	.align	2
-L_raise:
-#ifdef PIC
-	.long	_C_LABEL(raise)-(1b+4)
-#else
-	.long	_C_LABEL(raise)
-#endif
-#endif
diff --git a/sys/lib/libkern/arch/sh/udivsi3.S b/sys/lib/libkern/arch/sh/udivsi3.S
index a35be6d6a4d..d6ab60843b0 100644
--- a/sys/lib/libkern/arch/sh/udivsi3.S
+++ b/sys/lib/libkern/arch/sh/udivsi3.S
@@ -76,32 +76,5 @@ NENTRY(__udivsi3)
 	 mov	r4, r0
 
 div_by_zero:
-#ifdef _KERNEL
 	rts
 	 mov	#0, r0
-#else
-	mov.l	r14, @-r15
-	sts.l	pr, @-r15
-	mov	r15, r14
-
-	mov.l	L_raise, r1
-#ifdef PIC
-1:	bsrf	r1
-#else
-	jsr	@r1
-#endif
-	 mov	#8, r4		/* delay slot.  8 <- SIGFPE. */
-	mov	#0, r0
-
-	lds.l	@r15+, pr
-	rts
-	 mov.l	@r15+, r14
-
-	.align	2
-L_raise:
-#ifdef PIC
-	.long	_C_LABEL(raise)-(1b+4)
-#else
-	.long	_C_LABEL(raise)
-#endif
-#endif