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      1 /*	$NetBSD: kern_exit_43.c,v 1.23 2019/01/27 02:08:39 pgoyette Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1982, 1986, 1989, 1991, 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  * (c) UNIX System Laboratories, Inc.
      7  * All or some portions of this file are derived from material licensed
      8  * to the University of California by American Telephone and Telegraph
      9  * Co. or Unix System Laboratories, Inc. and are reproduced herein with
     10  * the permission of UNIX System Laboratories, Inc.
     11  *
     12  * Redistribution and use in source and binary forms, with or without
     13  * modification, are permitted provided that the following conditions
     14  * are met:
     15  * 1. Redistributions of source code must retain the above copyright
     16  *    notice, this list of conditions and the following disclaimer.
     17  * 2. Redistributions in binary form must reproduce the above copyright
     18  *    notice, this list of conditions and the following disclaimer in the
     19  *    documentation and/or other materials provided with the distribution.
     20  * 3. Neither the name of the University nor the names of its contributors
     21  *    may be used to endorse or promote products derived from this software
     22  *    without specific prior written permission.
     23  *
     24  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     25  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     26  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     27  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     28  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     29  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     30  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     31  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     32  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     33  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     34  * SUCH DAMAGE.
     35  *
     36  *	@(#)kern_exit.c	8.7 (Berkeley) 2/12/94
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: kern_exit_43.c,v 1.23 2019/01/27 02:08:39 pgoyette Exp $");
     41 
     42 #if defined(_KERNEL_OPT)
     43 #include "opt_compat_netbsd.h"
     44 #endif
     45 
     46 #include <sys/param.h>
     47 #include <sys/systm.h>
     48 #include <sys/ioctl.h>
     49 #include <sys/proc.h>
     50 #include <sys/tty.h>
     51 #include <sys/time.h>
     52 #include <sys/resource.h>
     53 #include <sys/kernel.h>
     54 #include <sys/buf.h>
     55 #include <sys/wait.h>
     56 #include <sys/file.h>
     57 #include <sys/vnode.h>
     58 #include <sys/syslog.h>
     59 #include <sys/resourcevar.h>
     60 #include <sys/ptrace.h>
     61 #include <sys/acct.h>
     62 
     63 #include <sys/mount.h>
     64 #include <sys/syscall.h>
     65 #include <sys/syscallvar.h>
     66 #include <sys/syscallargs.h>
     67 
     68 #include <sys/cpu.h>
     69 #include <machine/reg.h>
     70 #include <compat/common/compat_util.h>
     71 #include <compat/common/compat_mod.h>
     72 
     73 #ifdef m68k
     74 #include <machine/psl.h>		/* only m68k ports use PSL_ALLCC */
     75 #include <machine/frame.h>
     76 #define GETPS(rp)	((struct frame *)(rp))->f_sr
     77 #else
     78 #define GETPS(rp)	(rp)[PS]
     79 #endif
     80 
     81 static struct syscall_package kern_exit_43_syscalls[] = {
     82 	{ SYS_compat_43_owait, 0, (sy_call_t *)compat_43_sys_wait },
     83 	{ 0, 0, NULL}
     84 };
     85 
     86 int
     87 compat_43_sys_wait(struct lwp *l, const void *v, register_t *retval)
     88 {
     89 	int error, status, child_pid = WAIT_ANY;
     90 
     91 #ifdef PSL_ALLCC
     92 	if ((GETPS(l->l_md.md_regs) & PSL_ALLCC) != PSL_ALLCC) {
     93 		error = do_sys_wait(&child_pid, &status, 0, NULL);
     94 	} else {
     95 		error = do_sys_wait(&child_pid, &status,
     96 		    l->l_md.md_regs[R0], (struct rusage *)l->l_md.md_regs[R1]);
     97 	}
     98 #else
     99 	error = do_sys_wait(&child_pid, &status, 0, NULL);
    100 #endif
    101 	retval[0] = child_pid;
    102 	retval[1] = status;
    103 	return error;
    104 }
    105 
    106 int
    107 kern_exit_43_init(void)
    108 {
    109 
    110 	return syscall_establish(NULL, kern_exit_43_syscalls);
    111 }
    112 
    113 int
    114 kern_exit_43_fini(void)
    115 {
    116 
    117 	return syscall_disestablish(NULL, kern_exit_43_syscalls);
    118 }
    119