87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/* $NetBSD: fetch.c,v 1.12 2003/12/07 07:27:09 christos Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1980, 1992, 1993
|
|
* The Regents of the University of California. 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. 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.
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
#ifndef lint
|
|
#if 0
|
|
static char sccsid[] = "@(#)fetch.c 8.1 (Berkeley) 6/6/93";
|
|
#endif
|
|
__RCSID("$NetBSD: fetch.c,v 1.12 2003/12/07 07:27:09 christos Exp $");
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/sched.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
|
|
#include "systat.h"
|
|
#include "extern.h"
|
|
|
|
ssize_t
|
|
kvm_ckread(const void *a, void *b, size_t l, const char *name)
|
|
{
|
|
if (kvm_read(kd, (u_long)a, b, l) != l) {
|
|
if (verbose)
|
|
error("error reading kmem for %s at %p (%s)\n", name,
|
|
a, strerror(errno));
|
|
return (0);
|
|
} else
|
|
return (1);
|
|
}
|
|
|
|
int
|
|
fetch_cptime(u_int64_t *cptime)
|
|
{
|
|
size_t ssize;
|
|
int mib[2];
|
|
|
|
/*
|
|
* XXX Need to locate the `correct' CPU when looking for this
|
|
* XXX in crash dumps. Just don't report it for now, in that
|
|
* XXX case.
|
|
*/
|
|
ssize = CPUSTATES * sizeof(u_int64_t);
|
|
memset(cptime, 0, ssize);
|
|
if (memf == NULL) {
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_CP_TIME;
|
|
if (sysctl(mib, 2, cptime, &ssize, NULL, 0) < 0) {
|
|
if (verbose)
|
|
error("error fetching cp_time\n");
|
|
return (0);
|
|
} else
|
|
return (1);
|
|
}
|
|
return (1);
|
|
}
|