1 /* $NetBSD: userret.h,v 1.6 2003/01/17 23:36:09 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 1988 University of Utah. 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 7 * 8 * This code is derived from software contributed to Berkeley by 9 * the Systems Programming Group of the University of Utah Computer 10 * Science Department and Ralph Campbell. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * from: Utah Hdr: trap.c 1.32 91/04/06 41 * 42 * @(#)trap.c 8.5 (Berkeley) 1/11/94 43 */ 44 45 #ifndef _MIPS_USERRET_H_ 46 #define _MIPS_USERRET_H_ 47 48 static __inline void 49 userret(struct lwp *l) 50 { 51 int sig; 52 struct proc *p = l->l_proc; 53 54 /* Take pending signals. */ 55 while ((sig = CURSIG(l)) != 0) 56 postsig(sig); 57 58 /* Invoke per-process kernel-exit handling, if any */ 59 if (p->p_userret) 60 (p->p_userret)(l, p->p_userret_arg); 61 62 /* Invoke any pending upcalls. */ 63 while (l->l_flag & L_SA_UPCALL) 64 sa_upcall_userret(l); 65 66 curcpu()->ci_schedstate.spc_curpriority = l->l_priority = l->l_usrpri; 67 } 68 69 #endif /* _MIPS_USERRET_H_ */ 70