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 */
44 int
pr_waitid(struct ps_prochandle * Pr,idtype_t idtype,id_t id,siginfo_t * infop,int options)45 pr_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