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 #include <sys/isa_defs.h>
28
29 #include <stdlib.h>
30 #include <unistd.h>
31 #include <string.h>
32 #include <errno.h>
33 #include <sys/types.h>
34 #include <sys/wait.h>
35
36 #include "P32ton.h"
37 #include "libproc.h"
38
39 /*
40 * waitid() system call -- executed by subject process
41 */
42 int
pr_waitid(struct ps_prochandle * Pr,idtype_t idtype,id_t id,siginfo_t * infop,int options)43 pr_waitid(struct ps_prochandle *Pr,
44 idtype_t idtype, id_t id, siginfo_t *infop, int options)
45 {
46 sysret_t rval; /* return value from waitid() */
47 argdes_t argd[4]; /* arg descriptors for waitid() */
48 argdes_t *adp;
49 int error;
50 #ifdef _LP64
51 siginfo32_t siginfo32;
52 #endif /* _LP64 */
53
54 if (Pr == NULL) /* no subject process */
55 return (waitid(idtype, id, infop, options));
56
57 adp = &argd[0]; /* idtype argument */
58 adp->arg_value = idtype;
59 adp->arg_object = NULL;
60 adp->arg_type = AT_BYVAL;
61 adp->arg_inout = AI_INPUT;
62 adp->arg_size = 0;
63
64 adp++; /* id argument */
65 adp->arg_value = id;
66 adp->arg_object = NULL;
67 adp->arg_type = AT_BYVAL;
68 adp->arg_inout = AI_INPUT;
69 adp->arg_size = 0;
70
71 adp++; /* infop argument */
72 adp->arg_value = 0;
73 adp->arg_type = AT_BYREF;
74 adp->arg_inout = AI_OUTPUT;
75 #ifdef _LP64
76 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32) {
77 adp->arg_object = &siginfo32;
78 adp->arg_size = sizeof (siginfo32);
79 } else {
80 adp->arg_object = infop;
81 adp->arg_size = sizeof (*infop);
82 }
83 #else /* _LP64 */
84 adp->arg_object = infop;
85 adp->arg_size = sizeof (*infop);
86 #endif /* _LP64 */
87
88 adp++; /* options argument */
89 adp->arg_value = options;
90 adp->arg_object = NULL;
91 adp->arg_type = AT_BYVAL;
92 adp->arg_inout = AI_INPUT;
93 adp->arg_size = 0;
94
95 error = Psyscall(Pr, &rval, SYS_waitid, 4, &argd[0]);
96
97 if (error) {
98 errno = (error > 0)? error : ENOSYS;
99 return (-1);
100 }
101 #ifdef _LP64
102 if (Pstatus(Pr)->pr_dmodel == PR_MODEL_ILP32)
103 siginfo_32_to_n(&siginfo32, infop);
104 #endif /* _LP64 */
105 return (0);
106 }
107