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 (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21
22/*
23 * Copyright 2008 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/isa_defs.h>
30
31#include <stdlib.h>
32#include <unistd.h>
33#include <string.h>
34#include <errno.h>
35#include <sys/types.h>
36#include <sys/wait.h>
37
38#include "P32ton.h"
39#include "libproc.h"
40
41/*
42 * waitid() system call -- executed by subject process
43 */
44int
45pr_waitid(struct ps_prochandle *Pr,
46    idtype_t idtype, id_t id, siginfo_t *infop, int options)
47{
48	sysret_t rval;			/* return value from waitid() */
49	argdes_t argd[4];		/* arg descriptors for waitid() */
50	argdes_t *adp;
51	int error;
52#ifdef _LP64
53	siginfo32_t siginfo32;
54#endif	/* _LP64 */
55
56	if (Pr == NULL)		/* no subject process */
57		return (waitid(idtype, id, infop, options));
58
59	adp = &argd[0];		/* idtype argument */
60	adp->arg_value = idtype;
61	adp->arg_object = NULL;
62	adp->arg_type = AT_BYVAL;
63	adp->arg_inout = AI_INPUT;
64	adp->arg_size = 0;
65
66	adp++;			/* id argument */
67	adp->arg_value = id;
68	adp->arg_object = NULL;
69	adp->arg_type = AT_BYVAL;
70	adp->arg_inout = AI_INPUT;
71	adp->arg_size = 0;
72
73	adp++;			/* infop argument */
74	adp->arg_value = 0;
75	adp->arg_type = AT_BYREF;
76	adp->arg_inout = AI_OUTPUT;
77#ifdef _LP64
78	if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
79		adp->arg_object = &siginfo32;
80		adp->arg_size = sizeof (siginfo32);
81	} else {
82		adp->arg_object = infop;
83		adp->arg_size = sizeof (*infop);
84	}
85#else	/* _LP64 */
86	adp->arg_object = infop;
87	adp->arg_size = sizeof (*infop);
88#endif	/* _LP64 */
89
90	adp++;			/* options argument */
91	adp->arg_value = options;
92	adp->arg_object = NULL;
93	adp->arg_type = AT_BYVAL;
94	adp->arg_inout = AI_INPUT;
95	adp->arg_size = 0;
96
97	error = Psyscall(Pr, &rval, SYS_waitid, 4, &argd[0]);
98
99	if (error) {
100		errno = (error > 0)? error : ENOSYS;
101		return (-1);
102	}
103#ifdef _LP64
104	if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
105		siginfo_32_to_n(&siginfo32, infop);
106#endif	/* _LP64 */
107	return (0);
108}
109