1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 #include <sys/types.h> 30 #include <sys/systm.h> 31 #include <sys/door.h> 32 #include <sys/proc.h> 33 #include <sys/thread.h> 34 #include <sys/stack.h> 35 #include <sys/privregs.h> 36 37 int 38 door_finish_dispatch(caddr_t newsp) 39 { 40 void lwp_setsp(klwp_t *, caddr_t); 41 42 /* 43 * If being traced, need to copy in syscall arguments for /proc 44 * before changing the sp. In most cases, this will have no 45 * effect, since we'll have already done this in door_return(). 46 */ 47 if (curthread->t_post_sys && PTOU(ttoproc(curthread))->u_systrap) 48 (void) save_syscall_args(); 49 lwp_setsp(ttolwp(curthread), newsp); 50 lwptoregs(ttolwp(curthread))->r_fp = 0; /* stack ends here */ 51 52 return (0); 53 } 54 55 /*ARGSUSED*/ 56 uintptr_t 57 door_final_sp(uintptr_t resultsp, size_t align, int datamodel) 58 { 59 return (resultsp); 60 } 61