Home | History | Annotate | Line # | Download | only in netbsd32 
      1 /*	$NetBSD: netbsd32_wait.c,v 1.26 2021/12/05 08:13:12 msaitoh 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 1.26 2021/12/05 08:13:12 msaitoh 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___wait450(struct lwp *l, const struct netbsd32___wait450_args *uap,
     50     register_t *retval)
     51 {
     52 	/* {
     53 		syscallarg(int) pid;
     54 		syscallarg(netbsd32_intp) status;
     55 		syscallarg(int) options;
     56 		syscallarg(netbsd32_rusagep_t) rusage;
     57 	} */
     58 	int error, status, pid = SCARG(uap, pid);
     59 	struct netbsd32_rusage ru32;
     60 	struct rusage ru;
     61 
     62 	error = do_sys_wait(&pid, &status, SCARG(uap, options),
     63 	    SCARG_P32(uap, rusage) != NULL ? &ru : NULL);
     64 
     65 	retval[0] = pid;
     66 	if (pid == 0)
     67 		return error;
     68 
     69 	if (SCARG_P32(uap, status))
     70 		error = copyout(&status, SCARG_P32(uap, status),
     71 		    sizeof(status));
     72 
     73 	if (SCARG_P32(uap, rusage) && error == 0) {
     74 		netbsd32_from_rusage(&ru, &ru32);
     75 		error = copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
     76 	}
     77 
     78 	return error;
     79 }
     80 
     81 int
     82 netbsd32_wait6(struct lwp *l, const struct netbsd32_wait6_args *uap,
     83     register_t *retval)
     84 {
     85 	/* {
     86 		syscallarg(idtype_t) idtype;
     87 		syscallarg(id_t) id;
     88 		syscallarg(netbsd32_intp) status;
     89 		syscallarg(int) options;
     90 		syscallarg(netbsd32_wrusagep_t) wru;
     91 		syscallarg(netbsd32_siginfop_t) info;
     92 	} */
     93 	idtype_t idtype = SCARG(uap, idtype);
     94 	id_t id = SCARG(uap, id);
     95 	struct wrusage wru, *wrup;
     96 	siginfo_t si, *sip;
     97 	int status;
     98 	int pid;
     99 
    100 	if (SCARG_P32(uap, wru) != NULL)
    101 		wrup = &wru;
    102 	else
    103 		wrup = NULL;
    104 
    105 	if (SCARG_P32(uap, info) != NULL)
    106 		sip = &si;
    107 	else
    108 		sip = NULL;
    109 
    110 	/*
    111 	 *  We expect all callers of wait6() to know about WEXITED and
    112 	 *  WTRAPPED.
    113 	 */
    114 	int error = do_sys_waitid(idtype, id, &pid, &status,
    115 	    SCARG(uap, options), wrup, sip);
    116 
    117 	retval[0] = pid; 	/* tell userland who it was */
    118 
    119 #if 0
    120 	/*
    121 	 * should we copyout if there was no process, hence no useful data?
    122 	 * We don't for an old style wait4() (etc) but I believe
    123 	 * FreeBSD does for wait6(), so a tossup...  Go with FreeBSD for now.
    124 	 */
    125 	if (pid == 0)
    126 		return error;
    127 #endif
    128 
    129 
    130 	if (error == 0 && SCARG_P32(uap, status))
    131 		error = copyout(&status, SCARG_P32(uap, status),
    132 		    sizeof(status));
    133 	if (wrup != NULL && error == 0) {
    134 		struct netbsd32_wrusage wru32;
    135 
    136 		memset(&wru32, 0, sizeof(wru32));
    137 		netbsd32_from_rusage(&wrup->wru_self, &wru32.wru_self);
    138 		netbsd32_from_rusage(&wrup->wru_children, &wru32.wru_children);
    139 		error = copyout(&wru32, SCARG_P32(uap, wru), sizeof(wru32));
    140 	}
    141 	if (sip != NULL && error == 0) {
    142 	    	siginfo32_t si32;
    143 
    144 		netbsd32_si_to_si32(&si32, sip);
    145 		error = copyout(&si32, SCARG_P32(uap, info), sizeof(si32));
    146 	}
    147 
    148 	return error;
    149 }
    150 
    151 int
    152 netbsd32___getrusage50(struct lwp *l,
    153     const struct netbsd32___getrusage50_args *uap, register_t *retval)
    154 {
    155 	/* {
    156 		syscallarg(int) who;
    157 		syscallarg(netbsd32_rusagep_t) rusage;
    158 	} */
    159 	int error;
    160 	struct proc *p = l->l_proc;
    161 	struct rusage ru;
    162 	struct netbsd32_rusage ru32;
    163 
    164 	error = getrusage1(p, SCARG(uap, who), &ru);
    165 	if (error != 0)
    166 		return error;
    167 
    168 	netbsd32_from_rusage(&ru, &ru32);
    169 	return copyout(&ru32, SCARG_P32(uap, rusage), sizeof(ru32));
    170 }
    171