Annotation of sys/arch/amd64/include/userret.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: userret.h,v 1.3 2005/12/13 00:18:19 jsg Exp $ */
! 2: /* $NetBSD: userret.h,v 1.1 2003/04/26 18:39:49 fvdl Exp $ */
! 3:
! 4: /*
! 5: * XXXfvdl same as i386 counterpart, but should probably be independent.
! 6: */
! 7:
! 8: /*-
! 9: * Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
! 10: * All rights reserved.
! 11: *
! 12: * This code is derived from software contributed to The NetBSD Foundation
! 13: * by Charles M. Hannum.
! 14: *
! 15: * Redistribution and use in source and binary forms, with or without
! 16: * modification, are permitted provided that the following conditions
! 17: * are met:
! 18: * 1. Redistributions of source code must retain the above copyright
! 19: * notice, this list of conditions and the following disclaimer.
! 20: * 2. Redistributions in binary form must reproduce the above copyright
! 21: * notice, this list of conditions and the following disclaimer in the
! 22: * documentation and/or other materials provided with the distribution.
! 23: * 3. All advertising materials mentioning features or use of this software
! 24: * must display the following acknowledgement:
! 25: * This product includes software developed by the NetBSD
! 26: * Foundation, Inc. and its contributors.
! 27: * 4. Neither the name of The NetBSD Foundation nor the names of its
! 28: * contributors may be used to endorse or promote products derived
! 29: * from this software without specific prior written permission.
! 30: *
! 31: * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
! 32: * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
! 33: * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
! 34: * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
! 35: * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
! 36: * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
! 37: * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
! 38: * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
! 39: * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
! 40: * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
! 41: * POSSIBILITY OF SUCH DAMAGE.
! 42: */
! 43:
! 44: /*-
! 45: * Copyright (c) 1990 The Regents of the University of California.
! 46: * All rights reserved.
! 47: *
! 48: * This code is derived from software contributed to Berkeley by
! 49: * William Jolitz.
! 50: *
! 51: * Redistribution and use in source and binary forms, with or without
! 52: * modification, are permitted provided that the following conditions
! 53: * are met:
! 54: * 1. Redistributions of source code must retain the above copyright
! 55: * notice, this list of conditions and the following disclaimer.
! 56: * 2. Redistributions in binary form must reproduce the above copyright
! 57: * notice, this list of conditions and the following disclaimer in the
! 58: * documentation and/or other materials provided with the distribution.
! 59: * 3. Neither the name of the University nor the names of its contributors
! 60: * may be used to endorse or promote products derived from this software
! 61: * without specific prior written permission.
! 62: *
! 63: * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
! 64: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
! 65: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
! 66: * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
! 67: * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
! 68: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
! 69: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
! 70: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
! 71: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
! 72: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
! 73: * SUCH DAMAGE.
! 74: *
! 75: */
! 76:
! 77: #include <sys/signalvar.h>
! 78: #include <machine/cpu.h>
! 79:
! 80: static __inline void userret(struct proc *);
! 81:
! 82: /*
! 83: * Define the code needed before returning to user mode, for
! 84: * trap and syscall.
! 85: */
! 86: static __inline void
! 87: userret(struct proc *p)
! 88: {
! 89: int sig;
! 90:
! 91: while ((sig = CURSIG(p)) != 0)
! 92: postsig(sig);
! 93:
! 94: curcpu()->ci_schedstate.spc_curpriority = p->p_priority = p->p_usrpri;
! 95: }
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