87 lines
2.7 KiB
C
87 lines
2.7 KiB
C
/* $NetBSD: fetch.c,v 1.13 2009/04/13 23:20:27 lukem Exp $ */
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/*-
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* Copyright (c) 1980, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)fetch.c 8.1 (Berkeley) 6/6/93";
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#endif
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__RCSID("$NetBSD: fetch.c,v 1.13 2009/04/13 23:20:27 lukem Exp $");
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/sched.h>
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#include <sys/sysctl.h>
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#include <string.h>
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#include <errno.h>
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#include "systat.h"
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#include "extern.h"
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ssize_t
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kvm_ckread(const void *a, void *b, size_t l, const char *name)
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{
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if ((size_t)kvm_read(kd, (u_long)a, b, l) != l) {
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if (verbose)
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error("error reading kmem for %s at %p (%s)\n", name,
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a, strerror(errno));
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return (0);
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} else
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return (1);
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}
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int
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fetch_cptime(u_int64_t *cptime)
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{
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size_t ssize;
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int mib[2];
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/*
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* XXX Need to locate the `correct' CPU when looking for this
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* XXX in crash dumps. Just don't report it for now, in that
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* XXX case.
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*/
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ssize = CPUSTATES * sizeof(u_int64_t);
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memset(cptime, 0, ssize);
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if (memf == NULL) {
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mib[0] = CTL_KERN;
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mib[1] = KERN_CP_TIME;
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if (sysctl(mib, 2, cptime, &ssize, NULL, 0) < 0) {
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if (verbose)
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error("error fetching cp_time\n");
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return (0);
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} else
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return (1);
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}
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return (1);
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}
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