| 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 | |