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netbsd32_wait.c revision 1.17 
      1 /*	$NetBSD: netbsd32_wait.c,v 1.17 2007/12/20 23:03:02 dsl 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  * 3. The name of the author may not be used to endorse or promote products
     16  *    derived from this software without specific prior written permission.
     17  *
     18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     19  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     20  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     21  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     22  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
     23  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     24  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
     25  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
     26  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     28  * SUCH DAMAGE.
     29  */
     30 
     31 #include <sys/cdefs.h>
     32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_wait.c,v 1.17 2007/12/20 23:03:02 dsl Exp $");
     33 
     34 #include <sys/param.h>
     35 #include <sys/systm.h>
     36 #include <sys/mount.h>
     37 #include <sys/time.h>
     38 #include <sys/wait.h>
     39 #include <sys/ptrace.h>
     40 #include <sys/resourcevar.h>
     41 #include <sys/vnode.h>
     42 #include <sys/pool.h>
     43 #include <sys/proc.h>
     44 #include <sys/dirent.h>
     45 
     46 #include <compat/netbsd32/netbsd32.h>
     47 #include <compat/netbsd32/netbsd32_syscallargs.h>
     48 #include <compat/netbsd32/netbsd32_conv.h>
     49 
     50 int
     51 netbsd32_wait4(struct lwp *l, const struct netbsd32_wait4_args *uap, register_t *retval)
     52 {
     53 	/* {
     54 		syscallarg(int) pid;
     55 		syscallarg(netbsd32_intp) status;
     56 		syscallarg(int) options;
     57 		syscallarg(netbsd32_rusagep_t) rusage;
     58 	} */
     59 	int		status, error;
     60 	int		was_zombie;
     61 	struct rusage	ru;
     62 	struct netbsd32_rusage	ru32;
     63 	int pid = SCARG(uap, pid);
     64 
     65 	error = do_sys_wait(l, &pid, &status, SCARG(uap, options),
     66 	    SCARG_P32(uap, rusage) != NULL ? &ru : NULL, &was_zombie);
     67 
     68 	retval[0] = pid;
     69 	if (pid == 0)
     70 		return error;
     71 
     72 	if (SCARG_P32(uap, rusage)) {
     73 		netbsd32_from_rusage(&ru, &ru32);
     74 		error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
     75 	}
     76 
     77 	if (error == 0 && SCARG_P32(uap, status))
     78 		error = copyout(&status, SCARG_P32(uap, status), sizeof(status));
     79 
     80 	return error;
     81 }
     82 
     83 
     84 int
     85 netbsd32_getrusage(struct lwp *l, const struct netbsd32_getrusage_args *uap, register_t *retval)
     86 {
     87 	/* {
     88 		syscallarg(int) who;
     89 		syscallarg(netbsd32_rusagep_t) rusage;
     90 	} */
     91 	struct proc *p = l->l_proc;
     92 	struct rusage *rup;
     93 	struct netbsd32_rusage ru;
     94 
     95 	switch (SCARG(uap, who)) {
     96 
     97 	case RUSAGE_SELF:
     98 		rup = &p->p_stats->p_ru;
     99 		mutex_enter(&p->p_smutex);
    100 		calcru(p, &rup->ru_utime, &rup->ru_stime, NULL, NULL);
    101 		mutex_exit(&p->p_smutex);
    102 		break;
    103 
    104 	case RUSAGE_CHILDREN:
    105 		rup = &p->p_stats->p_cru;
    106 		break;
    107 
    108 	default:
    109 		return (EINVAL);
    110 	}
    111 	netbsd32_from_rusage(rup, &ru);
    112 	return copyout(&ru, SCARG_P32(uap, rusage), sizeof(ru));
    113 }
    114