Module Name: src
Committed By: rin
Date: Mon Sep 12 08:06:36 UTC 2022
Modified Files:
src/sys/arch/powerpc/ibm4xx: trap.c
Log Message:
Work around clang 13.0.0 bug; copy{in,out}() are miscompiled with -O[12],
by which /sbin/init cannot be executed.
To generate a diff of this commit:
cvs rdiff -u -r1.98 -r1.99 src/sys/arch/powerpc/ibm4xx/trap.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/powerpc/ibm4xx/trap.c
diff -u src/sys/arch/powerpc/ibm4xx/trap.c:1.98 src/sys/arch/powerpc/ibm4xx/trap.c:1.99
--- src/sys/arch/powerpc/ibm4xx/trap.c:1.98 Mon Sep 12 08:02:44 2022
+++ src/sys/arch/powerpc/ibm4xx/trap.c Mon Sep 12 08:06:36 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: trap.c,v 1.98 2022/09/12 08:02:44 rin Exp $ */
+/* $NetBSD: trap.c,v 1.99 2022/09/12 08:06:36 rin Exp $ */
/*
* Copyright 2001 Wasabi Systems, Inc.
@@ -69,7 +69,7 @@
#define __UFETCHSTORE_PRIVATE
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.98 2022/09/12 08:02:44 rin Exp $");
+__KERNEL_RCSID(0, "$NetBSD: trap.c,v 1.99 2022/09/12 08:06:36 rin Exp $");
#ifdef _KERNEL_OPT
#include "opt_ddb.h"
@@ -427,6 +427,9 @@ extern void vunmaprange(vaddr_t, vsize_t
static int bigcopyin(const void *, void *, size_t );
static int bigcopyout(const void *, void *, size_t );
+#ifdef __clang__
+#pragma clang optimize off
+#endif
int
copyin(const void *uaddr, void *kaddr, size_t len)
{
@@ -509,6 +512,9 @@ copyin(const void *uaddr, void *kaddr, s
curpcb->pcb_onfault = NULL;
return 0;
}
+#ifdef __clang__
+#pragma clang optimize on
+#endif
static int
bigcopyin(const void *uaddr, void *kaddr, size_t len)
@@ -542,6 +548,9 @@ bigcopyin(const void *uaddr, void *kaddr
return error;
}
+#ifdef __clang__
+#pragma clang optimize off
+#endif
int
copyout(const void *kaddr, void *uaddr, size_t len)
{
@@ -625,6 +634,9 @@ copyout(const void *kaddr, void *uaddr,
curpcb->pcb_onfault = NULL;
return 0;
}
+#ifdef __clang__
+#pragma clang optimize on
+#endif
static int
bigcopyout(const void *kaddr, void *uaddr, size_t len)
