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Diffstat (limited to 'bin/ps/nlist.c')
| -rw-r--r-- | bin/ps/nlist.c | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/bin/ps/nlist.c b/bin/ps/nlist.c new file mode 100644 index 0000000..11199ca --- /dev/null +++ b/bin/ps/nlist.c @@ -0,0 +1,136 @@ +/*- + * 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. 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. + */ + +#ifndef lint +static char sccsid[] = "@(#)nlist.c 8.4 (Berkeley) 4/2/94"; +#endif /* not lint */ + +#include <sys/param.h> +#include <sys/time.h> +#include <sys/proc.h> +#include <sys/resource.h> + +#include <err.h> +#include <errno.h> +#include <kvm.h> +#include <nlist.h> +#include <stdio.h> +#include <string.h> + +#include "ps.h" + +#ifdef P_PPWAIT +#define NEWVM +#endif + +struct nlist psnl[] = { + {"_fscale"}, +#define X_FSCALE 0 + {"_ccpu"}, +#define X_CCPU 1 +#ifdef NEWVM + {"_avail_start"}, +#define X_AVAILSTART 2 + {"_avail_end"}, +#define X_AVAILEND 3 +#else + {"_ecmx"}, +#define X_ECMX 2 +#endif + {NULL} +}; + +fixpt_t ccpu; /* kernel _ccpu variable */ +int nlistread; /* if nlist already read. */ +int mempages; /* number of pages of phys. memory */ +int fscale; /* kernel _fscale variable */ + +extern kvm_t *kd; + +#define kread(x, v) \ + kvm_read(kd, psnl[x].n_value, (char *)&v, sizeof v) != sizeof(v) + +int +donlist() +{ + int rval; +#ifdef NEWVM + int tmp; +#endif + + 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; + } +#ifdef NEWVM + if (kread(X_AVAILEND, mempages)) { + warnx("avail_start: %s", kvm_geterr(kd)); + eval = rval = 1; + } + if (kread(X_AVAILSTART, tmp)) { + warnx("avail_end: %s", kvm_geterr(kd)); + eval = rval = 1; + } + mempages -= tmp; +#else + if (kread(X_ECMX, mempages)) { + warnx("ecmx: %s", kvm_geterr(kd)); + eval = rval = 1; + } +#endif + if (kread(X_CCPU, ccpu)) { + warnx("ccpu: %s", kvm_geterr(kd)); + eval = rval = 1; + } + return (rval); +} + +void +nlisterr(nl) + 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"); +} |
