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netbsd32_wait.c revision 1.19 
      1 /*	$NetBSD: netbsd32_wait.c,v 1.19 2008/05/29 14:51:26 mrg Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 1998, 2001 Matthew R. Green
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     26  * SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __KERNEL_RCSID(0, "$NetBSD: netbsd32_wait.c,v 1.19 2008/05/29 14:51:26 mrg Exp $");
     31 
     32 #include <sys/param.h>
     33 #include <sys/systm.h>
     34 #include <sys/mount.h>
     35 #include <sys/time.h>
     36 #include <sys/wait.h>
     37 #include <sys/ptrace.h>
     38 #include <sys/resourcevar.h>
     39 #include <sys/vnode.h>
     40 #include <sys/pool.h>
     41 #include <sys/proc.h>
     42 #include <sys/dirent.h>
     43 
     44 #include <compat/netbsd32/netbsd32.h>
     45 #include <compat/netbsd32/netbsd32_syscallargs.h>
     46 #include <compat/netbsd32/netbsd32_conv.h>
     47 
     48 int
     49 netbsd32_wait4(struct lwp *l, const struct netbsd32_wait4_args *uap, register_t *retval)
     50 {
     51 	/* {
     52 		syscallarg(int) pid;
     53 		syscallarg(netbsd32_intp) status;
     54 		syscallarg(int) options;
     55 		syscallarg(netbsd32_rusagep_t) rusage;
     56 	} */
     57 	int		status, error;
     58 	int		was_zombie;
     59 	struct rusage	ru;
     60 	struct netbsd32_rusage	ru32;
     61 	int pid = SCARG(uap, pid);
     62 
     63 	error = do_sys_wait(l, &pid, &status, SCARG(uap, options),
     64 	    SCARG_P32(uap, rusage) != NULL ? &ru : NULL, &was_zombie);
     65 
     66 	retval[0] = pid;
     67 	if (pid == 0)
     68 		return error;
     69 
     70 	if (SCARG_P32(uap, rusage)) {
     71 		netbsd32_from_rusage(&ru, &ru32);
     72 		error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
     73 	}
     74 
     75 	if (error == 0 && SCARG_P32(uap, status))
     76 		error = copyout(&status, SCARG_P32(uap, status), sizeof(status));
     77 
     78 	return error;
     79 }
     80 
     81 
     82 int
     83 netbsd32_getrusage(struct lwp *l, const struct netbsd32_getrusage_args *uap, register_t *retval)
     84 {
     85 	/* {
     86 		syscallarg(int) who;
     87 		syscallarg(netbsd32_rusagep_t) rusage;
     88 	} */
     89 	struct proc *p = l->l_proc;
     90 	struct rusage *rup;
     91 	struct netbsd32_rusage ru;
     92 
     93 	switch (SCARG(uap, who)) {
     94 
     95 	case RUSAGE_SELF:
     96 		rup = &p->p_stats->p_ru;
     97 		mutex_enter(p->p_lock);
     98 		calcru(p, &rup->ru_utime, &rup->ru_stime, NULL, NULL);
     99 		mutex_exit(p->p_lock);
    100 		break;
    101 
    102 	case RUSAGE_CHILDREN:
    103 		rup = &p->p_stats->p_cru;
    104 		break;
    105 
    106 	default:
    107 		return (EINVAL);
    108 	}
    109 	netbsd32_from_rusage(rup, &ru);
    110 	return copyout(&ru, SCARG_P32(uap, rusage), sizeof(ru));
    111 }
    112