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userret.h revision 1.2.2.2
      1  1.2.2.2  bouyer /*	$NetBSD: userret.h,v 1.2.2.2 2000/12/13 15:49:31 bouyer Exp $	*/
      2  1.2.2.2  bouyer 
      3  1.2.2.2  bouyer /*-
      4  1.2.2.2  bouyer  * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
      5  1.2.2.2  bouyer  * All rights reserved.
      6  1.2.2.2  bouyer  *
      7  1.2.2.2  bouyer  * This code is derived from software contributed to The NetBSD Foundation
      8  1.2.2.2  bouyer  * by Charles M. Hannum.
      9  1.2.2.2  bouyer  *
     10  1.2.2.2  bouyer  * Redistribution and use in source and binary forms, with or without
     11  1.2.2.2  bouyer  * modification, are permitted provided that the following conditions
     12  1.2.2.2  bouyer  * are met:
     13  1.2.2.2  bouyer  * 1. Redistributions of source code must retain the above copyright
     14  1.2.2.2  bouyer  *    notice, this list of conditions and the following disclaimer.
     15  1.2.2.2  bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     16  1.2.2.2  bouyer  *    notice, this list of conditions and the following disclaimer in the
     17  1.2.2.2  bouyer  *    documentation and/or other materials provided with the distribution.
     18  1.2.2.2  bouyer  * 3. All advertising materials mentioning features or use of this software
     19  1.2.2.2  bouyer  *    must display the following acknowledgement:
     20  1.2.2.2  bouyer  *        This product includes software developed by the NetBSD
     21  1.2.2.2  bouyer  *        Foundation, Inc. and its contributors.
     22  1.2.2.2  bouyer  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  1.2.2.2  bouyer  *    contributors may be used to endorse or promote products derived
     24  1.2.2.2  bouyer  *    from this software without specific prior written permission.
     25  1.2.2.2  bouyer  *
     26  1.2.2.2  bouyer  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  1.2.2.2  bouyer  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  1.2.2.2  bouyer  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  1.2.2.2  bouyer  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  1.2.2.2  bouyer  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  1.2.2.2  bouyer  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  1.2.2.2  bouyer  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  1.2.2.2  bouyer  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  1.2.2.2  bouyer  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  1.2.2.2  bouyer  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  1.2.2.2  bouyer  * POSSIBILITY OF SUCH DAMAGE.
     37  1.2.2.2  bouyer  */
     38  1.2.2.2  bouyer 
     39  1.2.2.2  bouyer /*-
     40  1.2.2.2  bouyer  * Copyright (c) 1990 The Regents of the University of California.
     41  1.2.2.2  bouyer  * All rights reserved.
     42  1.2.2.2  bouyer  *
     43  1.2.2.2  bouyer  * This code is derived from software contributed to Berkeley by
     44  1.2.2.2  bouyer  * William Jolitz.
     45  1.2.2.2  bouyer  *
     46  1.2.2.2  bouyer  * Redistribution and use in source and binary forms, with or without
     47  1.2.2.2  bouyer  * modification, are permitted provided that the following conditions
     48  1.2.2.2  bouyer  * are met:
     49  1.2.2.2  bouyer  * 1. Redistributions of source code must retain the above copyright
     50  1.2.2.2  bouyer  *    notice, this list of conditions and the following disclaimer.
     51  1.2.2.2  bouyer  * 2. Redistributions in binary form must reproduce the above copyright
     52  1.2.2.2  bouyer  *    notice, this list of conditions and the following disclaimer in the
     53  1.2.2.2  bouyer  *    documentation and/or other materials provided with the distribution.
     54  1.2.2.2  bouyer  * 3. All advertising materials mentioning features or use of this software
     55  1.2.2.2  bouyer  *    must display the following acknowledgement:
     56  1.2.2.2  bouyer  *	This product includes software developed by the University of
     57  1.2.2.2  bouyer  *	California, Berkeley and its contributors.
     58  1.2.2.2  bouyer  * 4. Neither the name of the University nor the names of its contributors
     59  1.2.2.2  bouyer  *    may be used to endorse or promote products derived from this software
     60  1.2.2.2  bouyer  *    without specific prior written permission.
     61  1.2.2.2  bouyer  *
     62  1.2.2.2  bouyer  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     63  1.2.2.2  bouyer  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     64  1.2.2.2  bouyer  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     65  1.2.2.2  bouyer  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     66  1.2.2.2  bouyer  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     67  1.2.2.2  bouyer  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     68  1.2.2.2  bouyer  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     69  1.2.2.2  bouyer  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     70  1.2.2.2  bouyer  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     71  1.2.2.2  bouyer  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     72  1.2.2.2  bouyer  * SUCH DAMAGE.
     73  1.2.2.2  bouyer  *
     74  1.2.2.2  bouyer  */
     75  1.2.2.2  bouyer 
     76  1.2.2.2  bouyer static __inline void userret __P((register struct proc *));
     77  1.2.2.2  bouyer 
     78  1.2.2.2  bouyer /*
     79  1.2.2.2  bouyer  * Define the code needed before returning to user mode, for
     80  1.2.2.2  bouyer  * trap and syscall.
     81  1.2.2.2  bouyer  */
     82  1.2.2.2  bouyer static __inline void
     83  1.2.2.2  bouyer userret(p)
     84  1.2.2.2  bouyer 	register struct proc *p;
     85  1.2.2.2  bouyer {
     86  1.2.2.2  bouyer 	int sig;
     87  1.2.2.2  bouyer 
     88  1.2.2.2  bouyer 	/* Take pending signals. */
     89  1.2.2.2  bouyer 	while ((sig = CURSIG(p)) != 0)
     90  1.2.2.2  bouyer 		postsig(sig);
     91  1.2.2.2  bouyer 
     92  1.2.2.2  bouyer 	curcpu()->ci_schedstate.spc_curpriority = p->p_priority = p->p_usrpri;
     93  1.2.2.2  bouyer }
     94