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kern_exit_43.c revision 1.12.16.1 
      1 /*	$NetBSD: kern_exit_43.c,v 1.12.16.1 2007/02/26 09:08:59 yamt 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 1.12.16.1 2007/02/26 09:08:59 yamt Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/systm.h>
     44 #include <sys/ioctl.h>
     45 #include <sys/proc.h>
     46 #include <sys/tty.h>
     47 #include <sys/time.h>
     48 #include <sys/resource.h>
     49 #include <sys/kernel.h>
     50 #include <sys/buf.h>
     51 #include <sys/wait.h>
     52 #include <sys/file.h>
     53 #include <sys/vnode.h>
     54 #include <sys/syslog.h>
     55 #include <sys/resourcevar.h>
     56 #include <sys/ptrace.h>
     57 #include <sys/acct.h>
     58 
     59 #include <sys/mount.h>
     60 #include <sys/syscallargs.h>
     61 
     62 #include <machine/cpu.h>
     63 #include <machine/reg.h>
     64 #include <compat/common/compat_util.h>
     65 
     66 #ifdef m68k
     67 #include <machine/psl.h>		/* only m68k ports use PSL_ALLCC */
     68 #include <machine/frame.h>
     69 #define GETPS(rp)	((struct frame *)(rp))->f_sr
     70 #else
     71 #define GETPS(rp)	(rp)[PS]
     72 #endif
     73 
     74 int
     75 compat_43_sys_wait(struct lwp *l, void *v, register_t *retval)
     76 {
     77 	struct proc *p = l->l_proc;
     78 	caddr_t sg = stackgap_init(p, 0);
     79 	int error;
     80 
     81 	struct sys_wait4_args /* {
     82 		syscallarg(int) pid;
     83 		syscallarg(int *) status;
     84 		syscallarg(int) options;
     85 		syscallarg(struct rusage *) rusage;
     86 	} */ a;
     87 
     88 #ifdef PSL_ALLCC
     89 	if ((GETPS(l->l_md.md_regs) & PSL_ALLCC) != PSL_ALLCC) {
     90 		SCARG(&a, options) = 0;
     91 		SCARG(&a, rusage) = NULL;
     92 	} else {
     93 		SCARG(&a, options) = l->l_md.md_regs[R0];
     94 		SCARG(&a, rusage) = (struct rusage *)l->l_md.md_regs[R1];
     95 	}
     96 #else
     97 	SCARG(&a, options) = 0;
     98 	SCARG(&a, rusage) = NULL;
     99 #endif
    100 	SCARG(&a, pid) = WAIT_ANY;
    101 	SCARG(&a, status) = stackgap_alloc(p, &sg, sizeof(SCARG(&a, status)));
    102 	if ((error = sys_wait4(l, &a, retval)) != 0)
    103 		return error;
    104 	return copyin(SCARG(&a, status), &retval[1], sizeof(retval[1]));
    105 }
    106