49 lines
1.6 KiB
ArmAsm
49 lines
1.6 KiB
ArmAsm
/* $NetBSD: sigprocmask.S,v 1.5 1998/12/02 01:01:04 thorpej Exp $ */
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/*
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* Copyright (c) 1992 Helsinki University of Technology
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* 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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* HELSINKI UNIVERSITY OF TECHNOLOGY ALLOWS FREE USE OF THIS SOFTWARE IN
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* ITS "AS IS" CONDITION. HELSINKI UNIVERSITY OF TECHNOLOGY DISCLAIMS ANY
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* LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE
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* USE OF THIS SOFTWARE.
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*/
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/*
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* HISTORY
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* 29-Apr-92 Johannes Helander (jvh) at Helsinki University of Technology
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* Created.
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*/
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#include "SYS.h"
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#if defined(LIBC_SCCS)
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RCSID("$NetBSD: sigprocmask.S,v 1.5 1998/12/02 01:01:04 thorpej Exp $")
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#endif
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WARN_REFERENCES(sigprocmask, \
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"warning: reference to compatibility sigprocmask(); include <signal.h> for correct reference")
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ENTRY(sigprocmask)
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movd S_ARG1,r1 /* fetch new sigset pointer */
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cmpqd 0,r1 /* check new sigset pointer */
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bne 0f /* if not null, indirect */
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/* movqd 0,S_ARG1 /* null mask pointer: block empty set */
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movqd 1,S_ARG0 /* SIG_BLOCK */
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br 1f
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0: movd 0(r1),S_ARG1 /* fetch indirect to new mask arg */
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1: SYSTRAP(compat_13_sigprocmask13)
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bcs _ASM_LABEL(cerror)
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movd S_ARG2,r1 /* fetch old mask requested */
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cmpqd 0,r1 /* test if old mask requested */
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beq 2f
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movd r0,0(r1) /* store old mask */
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2: movqd 0,r0
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ret 0
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