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