1/* $NetBSD: compat_sigprocmask.S,v 1.1 2005/09/16 18:21:20 drochner Exp $ */ 2 3/* 4 * Copyright (c) 1994, 1995 Carnegie-Mellon University. 5 * All rights reserved. 6 * 7 * Author: Chris G. Demetriou 8 * 9 * Permission to use, copy, modify and distribute this software and 10 * its documentation is hereby granted, provided that both the copyright 11 * notice and this permission notice appear in all copies of the 12 * software, derivative works or modified versions, and any portions 13 * thereof, and that both notices appear in supporting documentation. 14 * 15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND 17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 18 * 19 * Carnegie Mellon requests users of this software to return to 20 * 21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 22 * School of Computer Science 23 * Carnegie Mellon University 24 * Pittsburgh PA 15213-3890 25 * 26 * any improvements or extensions that they make and grant Carnegie the 27 * rights to redistribute these changes. 28 */ 29 30#include "SYS.h" 31 32WARN_REFERENCES(sigprocmask, \ 33 "warning: reference to compatibility sigprocmask(); include <signal.h> for correct reference") 34 35LEAF(sigprocmask, 3) 36 mov a2, a5 /* safe */ 37 cmoveq a1, 1, a0 /* if set == NULL, how = SIG_BLOCK */ 38 beq a1, Ldoit /* and set = 0, and do it. */ 39 ldl a1, 0(a1) /* load the set from *set */ 40Ldoit: CALLSYS_ERROR(compat_13_sigprocmask13) 41 beq a5, Lret /* if they don't want old mask, done */ 42 stl v0, 0(a5) /* otherwise, give it to them. */ 43Lret: mov zero, v0 44 RET 45 46 END(sigprocmask) 47 48