45 lines
1.5 KiB
ArmAsm
45 lines
1.5 KiB
ArmAsm
/* $NetBSD: sigprocmask.S,v 1.2 1996/10/17 03:08:21 cgd Exp $ */
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/*
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* Copyright (c) 1994, 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include "SYS.h"
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PLEAF(sigprocmask, 3)
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mov a2, a5 /* safe */
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cmoveq a1, 1, a0 /* if set == NULL, how = SIG_BLOCK */
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beq a1, Ldoit /* and set = 0, and do it. */
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ldl a1, 0(a1) /* load the set from *set */
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Ldoit: CALLSYS_ERROR(sigprocmask)
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beq a5, Lret /* if they don't want old mask, done */
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stl v0, 0(a5) /* otherwise, give it to them. */
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Lret: mov zero, v0
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RET
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PEND(sigprocmask)
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