A simple regression test for cpu locks.

regress/sys/kern/Makefile

@@ -1,6 +1,18 @@
-#	$NetBSD: Makefile,v 1.13 2002/05/13 06:34:13 martti Exp $
+#	$NetBSD: Makefile,v 1.14 2002/08/28 07:41:02 gmcgarry Exp $
 
 SUBDIR+= execve extent getcwd ipf lockf pipe sigtramp sysvmsg sysvsem sysvshm \
 	unfdpass writev
 
+.if ${MACHINE_CPU} == "alpha" ||		\
+    ${MACHINE_CPU} == "i386" ||			\
+    ${MACHINE_CPU} == "m68k" ||			\
+    ${MACHINE_CPU} == "powerpc" ||		\
+    ${MACHINE_CPU} == "hppa" ||			\ 
+    ${MACHINE_CPU} == "sparc" ||		\
+    ${MACHINE_CPU} == "sparc64" ||		\
+    ${MACHINE_CPU} == "vax")
+SUBDIR+=lock
+.endif
+
+
 .include <bsd.subdir.mk>

regress/sys/kern/lock/Makefile

@@ -0,0 +1,14 @@
+#	$NetBSD: Makefile,v 1.1 2002/08/28 07:41:05 gmcgarry Exp $
+
+PROG=		lock
+NOMAN=		# defined
+WARNS=		2
+
+regress:
+	@if ./lock ; then		\
+		echo "PASSED";		\
+	else				\
+		echo "FAILED";		\
+	fi
+
+.include <bsd.prog.mk>

regress/sys/kern/lock/lock.c

@@ -0,0 +1,82 @@
+/* $NetBSD: lock.c,v 1.1 2002/08/28 07:41:04 gmcgarry Exp $ */
+
+/*-
+ * Copyright (c) 2002 The NetBSD Foundation, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *      This product includes software developed by the NetBSD
+ *      Foundation, Inc. and its contributors.
+ * 4. Neither the name of The NetBSD Foundation nor the names of its
+ *    contributors may be used to endorse or promote products derived
+ *    from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * __cpu_simple_lock/__cpu_simple_unlock regression test:
+ *
+ */
+
+#include <stdio.h>
+#include <signal.h>
+#include <sys/time.h>
+
+#include <machine/lock.h>
+
+__cpu_simple_lock_t lk;
+__volatile int handled = 0;
+
+void handler(int);
+
+void
+handler(int sig)
+{
+
+	handled = 1;
+	__cpu_simple_unlock(&lk);
+}
+
+int
+main(void)
+{
+	struct itimerval itv;
+
+	__cpu_simple_lock_init(&lk);
+
+	signal(SIGVTALRM, handler);
+
+	itv.it_interval.tv_sec = 0;
+	itv.it_interval.tv_usec = 0;
+	itv.it_value.tv_sec = 1;
+	itv.it_value.tv_usec = 0;
+	setitimer(ITIMER_VIRTUAL, &itv, NULL);
+
+	__cpu_simple_lock(&lk);
+	__cpu_simple_lock(&lk);
+	if (!handled) 
+		return (1);
+	__cpu_simple_unlock(&lk);
+
+	return (0);
+}