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