1 /* $NetBSD: sigprocmask.S,v 1.5 2003/08/07 16:42:26 agc Exp $ */
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
7 * This software was developed by the Computer Systems Engineering group
8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
9 * contributed to Berkeley.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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.
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
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35 * from: Header: sigprocmask.s,v 1.1 91/07/06 13:06:01 torek Exp
38 #include <machine/asm.h>
39 #if defined(SYSLIBC_SCCS) && !defined(lint)
41 .asciz "@(#)sigprocmask.s 8.1 (Berkeley) 6/4/93"
43 RCSID("$NetBSD: sigprocmask.S,v 1.5 2003/08/07 16:42:26 agc Exp $")
45 #endif /* SYSLIBC_SCCS and not lint */
49 WARN_REFERENCES(sigprocmask, \
50 "warning: reference to compatibility sigprocmask(); include <signal.h> for correct reference")
53 * sigprocmask(int how, sigset_t *set, sigset_t *oset)
56 tst %o1 ! set == NULL?
58 ld [%o1], %o1 ! replace it in %o1 with *set
59 ! clr %o1 ! else block no signals ...
60 mov 1, %o0 ! ... using sigprocmask(SIG_BLOCK)
62 mov SYS_compat_13_sigprocmask13, %g1
65 tst %o2 ! check to see if oset requested
68 bne,a 3f ! if oset != NULL,
69 st %o0, [%o2] ! *oset = oldmask
71 retl ! in any case, return 0