1 | /* $NetBSD: kern_50.c,v 1.1 2014/04/04 18:17:36 njoly Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2008, 2009 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Christos Zoulas. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | #include <sys/cdefs.h> |
32 | __KERNEL_RCSID(0, "$NetBSD: kern_50.c,v 1.1 2014/04/04 18:17:36 njoly Exp $" ); |
33 | |
34 | #include <sys/param.h> |
35 | #include <sys/lwp.h> |
36 | #include <sys/proc.h> |
37 | #include <sys/syscallargs.h> |
38 | |
39 | #include <compat/sys/resource.h> |
40 | #include <compat/sys/time.h> |
41 | |
42 | int |
43 | compat_50_sys__lwp_park(struct lwp *l, |
44 | const struct compat_50_sys__lwp_park_args *uap, register_t *retval) |
45 | { |
46 | /* { |
47 | syscallarg(const struct timespec50 *) ts; |
48 | syscallarg(lwpid_t) unpark; |
49 | syscallarg(const void *) hint; |
50 | syscallarg(const void *) unparkhint; |
51 | } */ |
52 | struct timespec ts, *tsp; |
53 | struct timespec50 ts50; |
54 | int error; |
55 | |
56 | if (SCARG(uap, ts) == NULL) |
57 | tsp = NULL; |
58 | else { |
59 | error = copyin(SCARG(uap, ts), &ts50, sizeof(ts50)); |
60 | if (error != 0) |
61 | return error; |
62 | timespec50_to_timespec(&ts50, &ts); |
63 | tsp = &ts; |
64 | } |
65 | |
66 | if (SCARG(uap, unpark) != 0) { |
67 | error = lwp_unpark(SCARG(uap, unpark), SCARG(uap, unparkhint)); |
68 | if (error != 0) |
69 | return error; |
70 | } |
71 | |
72 | return lwp_park(CLOCK_REALTIME, TIMER_ABSTIME, tsp, SCARG(uap, hint)); |
73 | } |
74 | |
75 | static int |
76 | tscopyin(const void *u, void *s, size_t len) |
77 | { |
78 | struct timespec50 ts50; |
79 | int error; |
80 | |
81 | KASSERT(len == sizeof(struct timespec)); |
82 | error = copyin(u, &ts50, sizeof(ts50)); |
83 | if (error) |
84 | return error; |
85 | timespec50_to_timespec(&ts50, s); |
86 | return 0; |
87 | } |
88 | |
89 | static int |
90 | tscopyout(const void *s, void *u, size_t len) |
91 | { |
92 | struct timespec50 ts50; |
93 | |
94 | KASSERT(len == sizeof(struct timespec)); |
95 | timespec_to_timespec50(s, &ts50); |
96 | return copyout(&ts50, u, sizeof(ts50)); |
97 | } |
98 | |
99 | int |
100 | compat_50_sys___sigtimedwait(struct lwp *l, |
101 | const struct compat_50_sys___sigtimedwait_args *uap, register_t *retval) |
102 | { |
103 | int res; |
104 | |
105 | res = sigtimedwait1(l, |
106 | (const struct sys_____sigtimedwait50_args *)uap, retval, copyin, |
107 | copyout, tscopyin, tscopyout); |
108 | if (!res) |
109 | *retval = 0; /* XXX NetBSD<=5 was not POSIX compliant */ |
110 | return res; |
111 | } |
112 | |
113 | int |
114 | compat_50_sys_wait4(struct lwp *l, const struct compat_50_sys_wait4_args *uap, |
115 | register_t *retval) |
116 | { |
117 | /* { |
118 | syscallarg(int) pid; |
119 | syscallarg(int *) status; |
120 | syscallarg(int) options; |
121 | syscallarg(struct rusage50 *) rusage; |
122 | } */ |
123 | int status, error, pid = SCARG(uap, pid); |
124 | struct rusage50 ru50; |
125 | struct rusage ru; |
126 | |
127 | error = do_sys_wait(&pid, &status, SCARG(uap, options), |
128 | SCARG(uap, rusage) != NULL ? &ru : NULL); |
129 | |
130 | retval[0] = pid; |
131 | if (pid == 0) |
132 | return error; |
133 | |
134 | if (SCARG(uap, rusage)) { |
135 | rusage_to_rusage50(&ru, &ru50); |
136 | error = copyout(&ru50, SCARG(uap, rusage), sizeof(ru50)); |
137 | } |
138 | |
139 | if (error == 0 && SCARG(uap, status)) |
140 | error = copyout(&status, SCARG(uap, status), sizeof(status)); |
141 | |
142 | return error; |
143 | } |
144 | |