freebsd-skq/sys/compat/linprocfs/linprocfs.c

203 lines
5.7 KiB
C
Raw Normal View History

/*
* Copyright (c) 1993 Jan-Simon Pendry
* Copyright (c) 1993
* The Regents of the University of California. All rights reserved.
*
* This code is derived from software contributed to Berkeley by
* Jan-Simon Pendry.
*
* 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 the University of
* California, Berkeley and its contributors.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*
* @(#)procfs_status.c 8.4 (Berkeley) 6/15/94
*
* $FreeBSD$
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <sys/jail.h>
#include <sys/vnode.h>
#include <sys/blist.h>
#include <sys/tty.h>
#include <sys/resourcevar.h>
#include <i386/linux/linprocfs/linprocfs.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <vm/vm_param.h>
#include <vm/swap_pager.h>
#include <sys/vmmeter.h>
#include <sys/exec.h>
#include <machine/md_var.h>
#include <machine/cputypes.h>
struct proc;
int
linprocfs_domeminfo(curp, p, pfs, uio)
struct proc *curp;
struct proc *p;
struct pfsnode *pfs;
struct uio *uio;
{
char *ps;
int xlen;
int error;
char psbuf[512]; /* XXX - conservative */
unsigned long memtotal; /* total memory in bytes */
unsigned long memused; /* used memory in bytes */
unsigned long memfree; /* free memory in bytes */
unsigned long memshared; /* shared memory ??? */
unsigned long buffers, cached; /* buffer / cache memory ??? */
unsigned long swaptotal; /* total swap space in bytes */
unsigned long swapused; /* used swap space in bytes */
unsigned long swapfree; /* free swap space in bytes */
if (uio->uio_rw != UIO_READ)
return (EOPNOTSUPP);
memtotal = physmem * PAGE_SIZE;
/*
* The correct thing here would be:
*
memfree = cnt.v_free_count * PAGE_SIZE;
memused = memtotal - memfree;
*
* but it might mislead linux binaries into thinking there
* is very little memory left, so we cheat and tell them that
* all memory that isn't wired down is free.
*/
memused = cnt.v_wire_count * PAGE_SIZE;
memfree = memtotal - memused;
swaptotal = swapblist->bl_blocks * 1024; /* XXX why 1024? */
swapfree = swapblist->bl_root->u.bmu_avail * PAGE_SIZE;
swapused = swaptotal - swapfree;
memshared = 0; /* XXX what's this supposed to be? */
/*
* We'd love to be able to write:
*
buffers = bufspace;
*
* but bufspace is internal to vfs_bio.c and we don't feel
* like unstaticizing it just for linprocfs's sake.
*/
buffers = 0;
cached = cnt.v_cache_count * PAGE_SIZE;
ps = psbuf;
ps += sprintf(ps,
" total: used: free: shared: buffers: cached:\n"
"Mem: %lu %lu %lu %lu %lu %lu\n"
"Swap: %lu %lu %lu\n"
"MemTotal: %9lu kB\n"
"MemFree: %9lu kB\n"
"MemShared:%9lu kB\n"
"Buffers: %9lu kB\n"
"Cached: %9lu kB\n"
"SwapTotal:%9lu kB\n"
"SwapFree: %9lu kB\n",
memtotal, memused, memfree, memshared, buffers, cached,
swaptotal, swapused, swapfree,
memtotal >> 10, memfree >> 10,
memshared >> 10, buffers >> 10, cached >> 10,
swaptotal >> 10, swapfree >> 10);
xlen = ps - psbuf;
xlen -= uio->uio_offset;
ps = psbuf + uio->uio_offset;
xlen = imin(xlen, uio->uio_resid);
if (xlen <= 0)
error = 0;
else
error = uiomove(ps, xlen, uio);
return (error);
}
int
linprocfs_docpuinfo(curp, p, pfs, uio)
struct proc *curp;
struct proc *p;
struct pfsnode *pfs;
struct uio *uio;
{
char *ps;
int xlen;
int error;
char psbuf[512]; /* XXX - conservative */
char *class;
#if 0
extern char *cpu_model; /* Yuck */
#endif
if (uio->uio_rw != UIO_READ)
return (EOPNOTSUPP);
switch (cpu_class) {
case CPUCLASS_286:
class = "286";
break;
case CPUCLASS_386:
class = "386";
break;
case CPUCLASS_486:
class = "486";
break;
case CPUCLASS_586:
class = "586";
break;
case CPUCLASS_686:
class = "686";
break;
default:
class = "unknown";
break;
}
ps = psbuf;
ps += sprintf(ps,
"processor : %d\n"
"cpu : %.3s\n"
"model : %.20s\n"
"vendor_id : %.20s\n"
"stepping : %d\n",
0, class, "unknown", cpu_vendor, cpu_id);
xlen = ps - psbuf;
xlen -= uio->uio_offset;
ps = psbuf + uio->uio_offset;
xlen = imin(xlen, uio->uio_resid);
if (xlen <= 0)
error = 0;
else
error = uiomove(ps, xlen, uio);
return (error);
}