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 /* Copyright (c) 1988 AT&T */
23*0Sstevel@tonic-gate /* All Rights Reserved */
24*0Sstevel@tonic-gate
25*0Sstevel@tonic-gate
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
28*0Sstevel@tonic-gate * Use is subject to license terms.
29*0Sstevel@tonic-gate */
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
32*0Sstevel@tonic-gate
33*0Sstevel@tonic-gate
34*0Sstevel@tonic-gate #include <sys/setjmp.h>
35*0Sstevel@tonic-gate #include "../common/ucontext.h"
36*0Sstevel@tonic-gate
37*0Sstevel@tonic-gate int _getsp();
38*0Sstevel@tonic-gate
39*0Sstevel@tonic-gate int
setjmp(env)40*0Sstevel@tonic-gate setjmp(env)
41*0Sstevel@tonic-gate jmp_buf env;
42*0Sstevel@tonic-gate {
43*0Sstevel@tonic-gate register o_setjmp_struct_t *bp = (o_setjmp_struct_t *)env;
44*0Sstevel@tonic-gate register int sp = _getsp();
45*0Sstevel@tonic-gate ucontext_t uc;
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate /*
48*0Sstevel@tonic-gate * Get the current machine context.
49*0Sstevel@tonic-gate */
50*0Sstevel@tonic-gate uc.uc_flags = UC_STACK | UC_SIGMASK;
51*0Sstevel@tonic-gate __getcontext(&uc);
52*0Sstevel@tonic-gate
53*0Sstevel@tonic-gate /*
54*0Sstevel@tonic-gate * Note that the pc and former sp (fp) from the stack are valid
55*0Sstevel@tonic-gate * because the call to __getcontext must flush the user windows
56*0Sstevel@tonic-gate * to the stack.
57*0Sstevel@tonic-gate */
58*0Sstevel@tonic-gate bp->sjs_flags = 0;
59*0Sstevel@tonic-gate bp->sjs_sp = *((int *)sp+14);
60*0Sstevel@tonic-gate bp->sjs_pc = *((int *)sp+15) + 0x8;
61*0Sstevel@tonic-gate bp->sjs_stack = uc.uc_stack;
62*0Sstevel@tonic-gate
63*0Sstevel@tonic-gate /* save the mask */
64*0Sstevel@tonic-gate bp->sjs_flags |= JB_SAVEMASK;
65*0Sstevel@tonic-gate memcpy(bp->sjs_sigmask, &(uc.uc_sigmask), 3 * sizeof (int));
66*0Sstevel@tonic-gate
67*0Sstevel@tonic-gate return (0);
68*0Sstevel@tonic-gate }
69*0Sstevel@tonic-gate
70*0Sstevel@tonic-gate
71*0Sstevel@tonic-gate
72*0Sstevel@tonic-gate void
longjmp(env,val)73*0Sstevel@tonic-gate longjmp(env, val)
74*0Sstevel@tonic-gate jmp_buf env;
75*0Sstevel@tonic-gate int val;
76*0Sstevel@tonic-gate {
77*0Sstevel@tonic-gate o_setjmp_struct_t *bp = (o_setjmp_struct_t *)env;
78*0Sstevel@tonic-gate setjmp_struct_t sjmp, *sp;
79*0Sstevel@tonic-gate
80*0Sstevel@tonic-gate sp = &sjmp;
81*0Sstevel@tonic-gate sp->sjs_flags = bp->sjs_flags;
82*0Sstevel@tonic-gate sp->sjs_sp = bp->sjs_sp;
83*0Sstevel@tonic-gate sp->sjs_pc = bp->sjs_pc;
84*0Sstevel@tonic-gate sp->sjs_fp = 0;
85*0Sstevel@tonic-gate sp->sjs_i7 = 0;
86*0Sstevel@tonic-gate sp->sjs_uclink = 0;
87*0Sstevel@tonic-gate sp->sjs_sigmask[0] = bp->sjs_sigmask[0];
88*0Sstevel@tonic-gate sp->sjs_sigmask[1] = bp->sjs_sigmask[1];
89*0Sstevel@tonic-gate sp->sjs_sigmask[2] = bp->sjs_sigmask[2];
90*0Sstevel@tonic-gate sp->sjs_sigmask[3] = 0;
91*0Sstevel@tonic-gate sp->sjs_stack = bp->sjs_stack;
92*0Sstevel@tonic-gate _siglongjmp(sjmp, val);
93*0Sstevel@tonic-gate }
94