1/*	$NetBSD: compat_sigprocmask.S,v 1.4 2013/07/25 22:08:15 matt Exp $	*/
2
3/*-
4 * Copyright (c) 1990 The Regents of the University of California.
5 * All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * the Systems Programming Group of the University of Utah Computer
9 * Science Department.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 *    notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 *    notice, this list of conditions and the following disclaimer in the
18 *    documentation and/or other materials provided with the distribution.
19 * 3. Neither the name of the University nor the names of its contributors
20 *    may be used to endorse or promote products derived from this software
21 *    without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36#include "SYS.h"
37
38#if defined(LIBC_SCCS) && !defined(lint)
39#if 0
40	RCSID("from: @(#)sigprocmask.s	5.2 (Berkeley) 6/6/90")
41#else
42	RCSID("$NetBSD: compat_sigprocmask.S,v 1.4 2013/07/25 22:08:15 matt Exp $")
43#endif
44#endif /* LIBC_SCCS and not lint */
45
46WARN_REFERENCES(sigprocmask, \
47    "warning: reference to compatibility sigprocmask(); include <signal.h> for correct reference")
48
49ENTRY(sigprocmask)
50	tstl	8(%sp)			/* check new sigset pointer */
51	jne	gotptr			/* if not null, indirect */
52/*	movl	#0,8(%sp)		/* null mask pointer: block empty set */
53	movql	#1,%d0			/* SIG_BLOCK */
54	movl	%d0,4(%sp)
55	jra	doit
56gotptr:
57	movl	8(%sp),%a0
58	movl	(%a0),8(%sp)		/* indirect to new mask arg */
59doit:
60	SYSTRAP(compat_13_sigprocmask13)
61	jcs	CERROR
62	tstl	12(%sp)		/* test if old mask requested */
63	jeq	out
64	movl	12(%sp),%a0
65	movl	%d0,(%a0)		/* store old mask */
66out:
67	clrl	%d0
68	rts
69END(sigprocmask)
70