initial import of NetBSD tree

1 files changed, 144 insertions, 0 deletions

diff --git a/bin/ps/nlist.c b/bin/ps/nlist.c
new file mode 100644
index 00000000000..dc4751a289f
--- /dev/null
+++ b/bin/ps/nlist.c
@@ -0,0 +1,144 @@
+/*	$NetBSD: nlist.c,v 1.11 1995/03/21 09:08:03 cgd Exp $	*/
+
+/*-
+ * 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
+#if 0
+static char sccsid[] = "@(#)nlist.c	8.4 (Berkeley) 4/2/94";
+#else
+static char rcsid[] = "$NetBSD: nlist.c,v 1.11 1995/03/21 09:08:03 cgd Exp $";
+#endif
+#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 <unistd.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;
+	mempages /= getpagesize();
+#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");
+}