1/* $NetBSD: linux32_sysinfo.c,v 1.7 2008/11/19 18:36:04 ad Exp $ */
2
3/*-
4 * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. All advertising materials mentioning features or use of this software
15 * must display the following acknowledgement:
16 * This product includes software developed by Emmanuel Dreyfus
17 * 4. The name of the author may not be used to endorse or promote
18 * products derived from this software without specific prior written
19 * permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
23 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
32 */
33
34#include <sys/cdefs.h>
35
36__KERNEL_RCSID(0, "$NetBSD: linux32_sysinfo.c,v 1.7 2008/11/19 18:36:04 ad Exp $");
37
38#include <sys/types.h>
39#include <sys/param.h>
40#include <sys/kernel.h>
41#include <sys/dirent.h>
42#include <sys/proc.h>
43
44#include <sys/syscallargs.h>
45
46#include <uvm/uvm_extern.h>
47
48#include <compat/netbsd32/netbsd32.h>
49#include <compat/netbsd32/netbsd32_conv.h>
50#include <compat/netbsd32/netbsd32_syscallargs.h>
51
52#include <compat/linux/common/linux_types.h>
53#include <compat/linux/common/linux_signal.h>
54#include <compat/linux/common/linux_misc.h>
55#include <compat/linux/common/linux_ipc.h>
56#include <compat/linux/common/linux_sem.h>
57#include <compat/linux/linux_syscallargs.h>
58
59#include <compat/linux32/common/linux32_types.h>
60#include <compat/linux32/common/linux32_signal.h>
61#include <compat/linux32/linux32_syscallargs.h>
62
63/* ARGSUSED */
64int
65linux32_sys_sysinfo(struct lwp *l, const struct linux32_sys_sysinfo_args *uap, register_t *retval)
66{
67 /* {
68 syscallarg(struct linux32_sysinfo *) arg;
69 } */
70 struct linux32_sysinfo si;
71 struct loadavg *la;
72
73 si.uptime = time_uptime;
74 la = &averunnable;
75 si.loads[0] = la->ldavg[0] * LINUX_SYSINFO_LOADS_SCALE / la->fscale;
76 si.loads[1] = la->ldavg[1] * LINUX_SYSINFO_LOADS_SCALE / la->fscale;
77 si.loads[2] = la->ldavg[2] * LINUX_SYSINFO_LOADS_SCALE / la->fscale;
78 si.totalram = ctob((u_long)physmem);
79 si.freeram = (u_long)uvmexp.free * uvmexp.pagesize;
80 si.sharedram = 0; /* XXX */
81 si.bufferram = (u_long)uvmexp.filepages * uvmexp.pagesize;
82 si.totalswap = (u_long)uvmexp.swpages * uvmexp.pagesize;
83 si.freeswap =
84 (u_long)(uvmexp.swpages - uvmexp.swpginuse) * uvmexp.pagesize;
85 si.procs = nprocs;
86
87 /* The following are only present in newer Linux kernels. */
88 si.totalbig = 0;
89 si.freebig = 0;
90 si.mem_unit = 1;
91
92 return (copyout(&si, SCARG_P32(uap, arg), sizeof si));
93}
94
95