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      1 /*	$NetBSD: netbsd32_compat_60.c,v 1.6 2020/01/29 15:47:52 ad Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2008, 2020 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: netbsd32_compat_60.c,v 1.6 2020/01/29 15:47:52 ad Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/module.h>
     37 #include <sys/time.h>
     38 #include <sys/dirent.h>
     39 #include <sys/lwp.h>
     40 #include <sys/syscallargs.h>
     41 #include <sys/syscallvar.h>
     42 
     43 #include <compat/netbsd32/netbsd32.h>
     44 #include <compat/netbsd32/netbsd32_syscall.h>
     45 #include <compat/netbsd32/netbsd32_syscallargs.h>
     46 #include <compat/netbsd32/netbsd32_conv.h>
     47 
     48 int
     49 compat_60_netbsd32__lwp_park(struct lwp *l,
     50     const struct compat_60_netbsd32__lwp_park_args *uap, register_t *retval)
     51 {
     52 	/* {
     53 		syscallarg(const netbsd32_timespecp) ts;
     54 		syscallarg(lwpid_t) unpark;
     55 		syscallarg(netbsd32_voidp) hint;
     56 		syscallarg(netbsd32_voidp) unparkhint;
     57 	} */
     58 	struct timespec ts, *tsp;
     59 	struct netbsd32_timespec ts32;
     60 	int error;
     61 
     62 	if (SCARG_P32(uap, ts) == NULL)
     63 		tsp = NULL;
     64 	else {
     65 		error = copyin(SCARG_P32(uap, ts), &ts32, sizeof ts32);
     66 		if (error != 0)
     67 			return error;
     68 		netbsd32_to_timespec(&ts32, &ts);
     69 		tsp = &ts;
     70 	}
     71 
     72 	if (SCARG(uap, unpark) != 0) {
     73 		error = lwp_unpark(&SCARG(uap, unpark), 1);
     74 		if (error != 0)
     75 			return error;
     76 	}
     77 
     78 	return lwp_park(CLOCK_REALTIME, TIMER_ABSTIME, tsp);
     79 }
     80 
     81 static struct syscall_package compat_netbsd32_60_syscalls[] = {
     82 	{ NETBSD32_SYS_compat_60_netbsd32__lwp_park, 0,
     83 	    (sy_call_t *)compat_60_netbsd32__lwp_park },
     84 	{ 0, 0, NULL }
     85 };
     86 
     87 
     88 MODULE(MODULE_CLASS_EXEC, compat_netbsd32_60, "compat_netbsd32_80,compat_60");
     89 
     90 static int
     91 compat_netbsd32_60_modcmd(modcmd_t cmd, void *arg)
     92 {
     93 
     94 	switch (cmd) {
     95 	case MODULE_CMD_INIT:
     96 		return syscall_establish(&emul_netbsd32,
     97 		    compat_netbsd32_60_syscalls);
     98 
     99 	case MODULE_CMD_FINI:
    100 		return syscall_disestablish(&emul_netbsd32,
    101 		    compat_netbsd32_60_syscalls);
    102 
    103 	default:
    104 		return ENOTTY;
    105 	}
    106 }
    107