From: millert <millert@openbsd.org>
Date: Thu, 10 Apr 1997 17:23:14 +0000 (+0000)
Subject: Don't use gcc builtin __builtin_return_address(frameno) on
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=da436303e50e42de7341c7b9f627c51d47ec7c55;p=openbsd

Don't use gcc builtin __builtin_return_address(frameno) on
alpha, it crashes the kernel.  This is a work around until
gcc is fixed.  NetBSD PR#3471 fix from Ross Harvey <ross@teraflop.com>
---

diff --git a/sys/miscfs/nullfs/null.h b/sys/miscfs/nullfs/null.h
index 2ba6eef6d19..75e8281a06b 100644
--- a/sys/miscfs/nullfs/null.h
+++ b/sys/miscfs/nullfs/null.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: null.h,v 1.3 1996/05/22 12:04:35 deraadt Exp $	*/
+/*	$OpenBSD: null.h,v 1.4 1997/04/10 17:23:14 millert Exp $	*/
 /*	$NetBSD: null.h,v 1.7 1996/05/17 20:53:11 gwr Exp $	*/
 
 /*
@@ -65,7 +65,8 @@ struct null_node {
 #endif
 };
 
-#if !defined(__GNUC__) || __GNUC__ < 2 || \
+/* XXX - __builtin_return_address() broken on alpha due to gcc bug */
+#if defined(__alpha__) || !defined(__GNUC__) || __GNUC__ < 2 || \
 	(__GNUC__ == 2 && __GNUC_MINOR__ < 5)
 #define RETURN_PC(frameno) (void *)0
 #else