NetBSD/sys/compat/linux32/common/linux32_sysinfo.c

95 lines
3.5 KiB
C

/* $NetBSD: linux32_sysinfo.c,v 1.7 2008/11/19 18:36:04 ad Exp $ */
/*-
* Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Emmanuel Dreyfus
* 4. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: linux32_sysinfo.c,v 1.7 2008/11/19 18:36:04 ad Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/dirent.h>
#include <sys/proc.h>
#include <sys/syscallargs.h>
#include <uvm/uvm_extern.h>
#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_conv.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>
#include <compat/linux/common/linux_types.h>
#include <compat/linux/common/linux_signal.h>
#include <compat/linux/common/linux_misc.h>
#include <compat/linux/common/linux_ipc.h>
#include <compat/linux/common/linux_sem.h>
#include <compat/linux/linux_syscallargs.h>
#include <compat/linux32/common/linux32_types.h>
#include <compat/linux32/common/linux32_signal.h>
#include <compat/linux32/linux32_syscallargs.h>
/* ARGSUSED */
int
linux32_sys_sysinfo(struct lwp *l, const struct linux32_sys_sysinfo_args *uap, register_t *retval)
{
/* {
syscallarg(struct linux32_sysinfo *) arg;
} */
struct linux32_sysinfo si;
struct loadavg *la;
si.uptime = time_uptime;
la = &averunnable;
si.loads[0] = la->ldavg[0] * LINUX_SYSINFO_LOADS_SCALE / la->fscale;
si.loads[1] = la->ldavg[1] * LINUX_SYSINFO_LOADS_SCALE / la->fscale;
si.loads[2] = la->ldavg[2] * LINUX_SYSINFO_LOADS_SCALE / la->fscale;
si.totalram = ctob((u_long)physmem);
si.freeram = (u_long)uvmexp.free * uvmexp.pagesize;
si.sharedram = 0; /* XXX */
si.bufferram = (u_long)uvmexp.filepages * uvmexp.pagesize;
si.totalswap = (u_long)uvmexp.swpages * uvmexp.pagesize;
si.freeswap =
(u_long)(uvmexp.swpages - uvmexp.swpginuse) * uvmexp.pagesize;
si.procs = nprocs;
/* The following are only present in newer Linux kernels. */
si.totalbig = 0;
si.freebig = 0;
si.mem_unit = 1;
return (copyout(&si, SCARG_P32(uap, arg), sizeof si));
}