/*

 * CDDL HEADER START

 *

 * The contents of this file are subject to the terms of the

 *

 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE

 * or http://www.opensolaris.org/os/licensing.

 * See the License for the specific language governing permissions

 * and limitations under the License.

 *

 * When distributing Covered Code, include this CDDL HEADER in each

 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.

 * If applicable, add the following below this CDDL HEADER, with the

 * fields enclosed by brackets "[]" replaced with your own identifying

 * information: Portions Copyright [yyyy] [name of copyright owner]

 *

 * CDDL HEADER END

 */

/*

 * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.

 * Use is subject to license terms.

 */

#include "SYS.h"

/

/ _lock_try(lp)

/	- returns non-zero on success.

/

	ENTRY(_lock_try)

	movl	$1,%eax

	xchgb	%al, (%rdi)

	xorb	$1, %al

	ret

	SET_SIZE(_lock_try)

/

/ _lock_clear(lp)

/	- clear lock and force it to appear unlocked in memory.

/

	ENTRY(_lock_clear)

	movb	$0, (%rdi)

	ret

	SET_SIZE(_lock_clear)