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/* $OpenBSD: sigprocmask.S,v 1.1.1.1 2006/10/10 22:07:10 miod Exp $ */
/* $NetBSD: sigprocmask.S,v 1.6 2003/08/07 16:42:21 agc Exp $ */
/*-
* Copyright (c) 1990 The Regents of the University of California.
* All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* William Jolitz.
*
* 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. Neither the name of the University 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 REGENTS 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 REGENTS 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.
*
* from: @(#)sigprocmask.s 5.2 (Berkeley) 12/17/90
*/
#include "SYS.h"
SYSENTRY(sigprocmask)
mov r5, r2 /* fetch new sigset pointer */
tst r2, r2 /* check new sigset pointer */
bf 1f /* if not null, indirect */
mov #1, r4 /* SIG_BLOCK */
bra 2f
nop
1: mov.l @r2, r2 /* fetch indirect ... */
mov r2, r5 /* to new mask arg */
2: mov.l LSYS_sigprocmask, r0
trapa #0x80
bf err
mov r6, r2 /* fetch old mask requested */
tst r2, r2 /* test if old mask requested */
bt out
mov.l r0, @r2 /* store old mask */
out:
xor r0, r0
rts
nop
err:
JUMP_CERROR
.align 2
LSYS_sigprocmask:
.long SYS_sigprocmask
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