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 1997-2003 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 <stdlib.h>
30*0Sstevel@tonic-gate #include <unistd.h>
31*0Sstevel@tonic-gate #include <errno.h>
32*0Sstevel@tonic-gate #include <sys/lwp.h>
33*0Sstevel@tonic-gate #include "libproc.h"
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate * exit() system call -- executed by subject process.
37*0Sstevel@tonic-gate */
38*0Sstevel@tonic-gate int
pr_exit(struct ps_prochandle * Pr,int status)39*0Sstevel@tonic-gate pr_exit(struct ps_prochandle *Pr, int status)
40*0Sstevel@tonic-gate {
41*0Sstevel@tonic-gate sysret_t rval; /* return value from exit() */
42*0Sstevel@tonic-gate argdes_t argd[1]; /* arg descriptors for exit() */
43*0Sstevel@tonic-gate argdes_t *adp;
44*0Sstevel@tonic-gate int error;
45*0Sstevel@tonic-gate
46*0Sstevel@tonic-gate if (Pr == NULL) { /* no subject process */
47*0Sstevel@tonic-gate exit(status);
48*0Sstevel@tonic-gate return (0); /* not reached */
49*0Sstevel@tonic-gate }
50*0Sstevel@tonic-gate
51*0Sstevel@tonic-gate adp = &argd[0]; /* status argument */
52*0Sstevel@tonic-gate adp->arg_value = status;
53*0Sstevel@tonic-gate adp->arg_object = NULL;
54*0Sstevel@tonic-gate adp->arg_type = AT_BYVAL;
55*0Sstevel@tonic-gate adp->arg_inout = AI_INPUT;
56*0Sstevel@tonic-gate adp->arg_size = 0;
57*0Sstevel@tonic-gate
58*0Sstevel@tonic-gate error = Psyscall(Pr, &rval, SYS_exit, 1, &argd[0]);
59*0Sstevel@tonic-gate /* actually -- never returns. Expect ENOENT */
60*0Sstevel@tonic-gate
61*0Sstevel@tonic-gate if (error < 0) {
62*0Sstevel@tonic-gate if (errno == ENOENT) /* expected case */
63*0Sstevel@tonic-gate error = ENOENT;
64*0Sstevel@tonic-gate else
65*0Sstevel@tonic-gate error = ENOSYS;
66*0Sstevel@tonic-gate }
67*0Sstevel@tonic-gate
68*0Sstevel@tonic-gate if (error == 0) /* can't happen? */
69*0Sstevel@tonic-gate return (rval.sys_rval1);
70*0Sstevel@tonic-gate
71*0Sstevel@tonic-gate if (error == ENOENT) /* expected case */
72*0Sstevel@tonic-gate return (0);
73*0Sstevel@tonic-gate
74*0Sstevel@tonic-gate errno = error;
75*0Sstevel@tonic-gate return (-1);
76*0Sstevel@tonic-gate }
77*0Sstevel@tonic-gate
78*0Sstevel@tonic-gate /*
79*0Sstevel@tonic-gate * lwp_exit() system call -- executed by subject lwp.
80*0Sstevel@tonic-gate */
81*0Sstevel@tonic-gate int
pr_lwp_exit(struct ps_prochandle * Pr)82*0Sstevel@tonic-gate pr_lwp_exit(struct ps_prochandle *Pr)
83*0Sstevel@tonic-gate {
84*0Sstevel@tonic-gate sysret_t rval; /* return value from lwp_exit() */
85*0Sstevel@tonic-gate int error;
86*0Sstevel@tonic-gate
87*0Sstevel@tonic-gate if (Pr == NULL) { /* no subject process */
88*0Sstevel@tonic-gate (void) syscall(SYS_lwp_exit);
89*0Sstevel@tonic-gate return (0); /* not reached */
90*0Sstevel@tonic-gate }
91*0Sstevel@tonic-gate
92*0Sstevel@tonic-gate error = Psyscall(Pr, &rval, SYS_lwp_exit, 0, NULL);
93*0Sstevel@tonic-gate /* actually -- never returns. Expect ENOENT */
94*0Sstevel@tonic-gate
95*0Sstevel@tonic-gate if (error < 0) {
96*0Sstevel@tonic-gate if (errno == ENOENT) /* expected case */
97*0Sstevel@tonic-gate error = ENOENT;
98*0Sstevel@tonic-gate else
99*0Sstevel@tonic-gate error = ENOSYS;
100*0Sstevel@tonic-gate }
101*0Sstevel@tonic-gate
102*0Sstevel@tonic-gate if (error == 0) /* can't happen? */
103*0Sstevel@tonic-gate return (rval.sys_rval1);
104*0Sstevel@tonic-gate
105*0Sstevel@tonic-gate if (error == ENOENT) /* expected case */
106*0Sstevel@tonic-gate return (0);
107*0Sstevel@tonic-gate
108*0Sstevel@tonic-gate errno = error;
109*0Sstevel@tonic-gate return (-1);
110*0Sstevel@tonic-gate }
111