97189037b1
No changes except for one cosmetic adjustment: NetBSD has chosen to rename the standard TT column to TTY and not shorten tty names; we undo those changes, making ps(1) behave more in accordance with the specification and its manual page, and, most importantly for us, not use an incredibly wide TTY column to print "console". Change-Id: I3b3c198762f3eacf1b8e500557a803c1fedf2a61
208 lines
6.1 KiB
C
208 lines
6.1 KiB
C
/* $NetBSD: nlist.c,v 1.26 2008/04/28 20:22:51 martin Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2000 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Simon Burge.
|
|
*
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 1990, 1993, 1994
|
|
* 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[] = "@(#)nlist.c 8.4 (Berkeley) 4/2/94";
|
|
#else
|
|
__RCSID("$NetBSD: nlist.c,v 1.26 2008/04/28 20:22:51 martin Exp $");
|
|
#endif
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/lwp.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/resource.h>
|
|
#include <sys/sysctl.h>
|
|
|
|
#include <err.h>
|
|
#include <errno.h>
|
|
#include <kvm.h>
|
|
#include <math.h>
|
|
#include <nlist.h>
|
|
#include <stdio.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
|
|
#include "ps.h"
|
|
|
|
struct nlist psnl[] = {
|
|
{ .n_name = "_fscale" },
|
|
#define X_FSCALE 0
|
|
{ .n_name = "_ccpu" },
|
|
#define X_CCPU 1
|
|
{ .n_name = "_physmem" },
|
|
#define X_PHYSMEM 2
|
|
{ .n_name = "_maxslp" },
|
|
#define X_MAXSLP 3
|
|
{ .n_name = NULL }
|
|
};
|
|
|
|
double ccpu; /* kernel _ccpu variable */
|
|
int nlistread; /* if nlist already read. */
|
|
int mempages; /* number of pages of phys. memory */
|
|
int fscale; /* kernel _fscale variable */
|
|
int maxslp; /* kernel _maxslp variable */
|
|
int uspace; /* kernel USPACE value */
|
|
|
|
#define kread(x, v) \
|
|
kvm_read(kd, psnl[x].n_value, (char *)&v, sizeof v) != sizeof(v)
|
|
|
|
int
|
|
donlist(void)
|
|
{
|
|
int rval;
|
|
fixpt_t xccpu;
|
|
|
|
rval = 0;
|
|
nlistread = 1;
|
|
if (kvm_nlist(kd, psnl)) {
|
|
nlisterr(psnl);
|
|
eval = 1;
|
|
return (1);
|
|
}
|
|
if (kread(X_FSCALE, fscale)) {
|
|
warnx("fscale: %s", kvm_geterr(kd));
|
|
eval = rval = 1;
|
|
}
|
|
if (kread(X_PHYSMEM, mempages)) {
|
|
warnx("avail_start: %s", kvm_geterr(kd));
|
|
eval = rval = 1;
|
|
}
|
|
if (kread(X_CCPU, xccpu)) {
|
|
warnx("ccpu: %s", kvm_geterr(kd));
|
|
eval = rval = 1;
|
|
}
|
|
if (kread(X_MAXSLP, maxslp)) {
|
|
warnx("maxslp: %s", kvm_geterr(kd));
|
|
eval = rval = 1;
|
|
}
|
|
ccpu = (double)xccpu / fscale;
|
|
return (rval);
|
|
}
|
|
|
|
int
|
|
donlist_sysctl(void)
|
|
{
|
|
int mib[2];
|
|
size_t size;
|
|
fixpt_t xccpu;
|
|
uint64_t memsize;
|
|
|
|
nlistread = 1;
|
|
mib[0] = CTL_HW;
|
|
mib[1] = HW_PHYSMEM64;
|
|
size = sizeof(memsize);
|
|
if (sysctl(mib, 2, &memsize, &size, NULL, 0) == 0)
|
|
mempages = memsize / getpagesize();
|
|
else
|
|
mempages = 0;
|
|
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_FSCALE;
|
|
size = sizeof(fscale);
|
|
if (sysctl(mib, 2, &fscale, &size, NULL, 0) == -1)
|
|
fscale = (1 << 8); /* XXX Hopefully reasonable default */
|
|
|
|
mib[0] = CTL_KERN;
|
|
mib[1] = KERN_CCPU;
|
|
size = sizeof(xccpu);
|
|
if (sysctl(mib, 2, &xccpu, &size, NULL, 0) == -1)
|
|
ccpu = exp(-1.0 / 20.0); /* XXX Hopefully reasonable default */
|
|
else
|
|
ccpu = (double)xccpu / fscale;
|
|
|
|
mib[0] = CTL_VM;
|
|
mib[1] = VM_MAXSLP;
|
|
size = sizeof(maxslp);
|
|
if (sysctl(mib, 2, &maxslp, &size, NULL, 0) == -1)
|
|
#ifdef MAXSLP
|
|
maxslp = MAXSLP;
|
|
#else
|
|
maxslp = 20; /* XXX Hopefully reasonable default */
|
|
#endif
|
|
|
|
mib[0] = CTL_VM;
|
|
mib[1] = VM_USPACE;
|
|
size = sizeof(uspace);
|
|
if (sysctl(mib, 2, &uspace, &size, NULL, 0) == -1)
|
|
#ifdef USPACE
|
|
uspace = USPACE;
|
|
#else
|
|
uspace = getpagesize(); /* XXX Hopefully reasonable default */
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
void
|
|
nlisterr(struct nlist nl[])
|
|
{
|
|
int i;
|
|
|
|
(void)fprintf(stderr, "ps: nlist: can't find following symbols:");
|
|
for (i = 0; nl[i].n_name != NULL; i++)
|
|
if (nl[i].n_value == 0)
|
|
(void)fprintf(stderr, " %s", nl[i].n_name);
|
|
(void)fprintf(stderr, "\n");
|
|
}
|