Add small tool to invoke kernel test framework tests.

MFC after:	1 week
Sponsored by:	Mellanox Technologies // NVIDIA Networking

sys/tests/runtest/Makefile

@@ -0,0 +1,8 @@
+#
+# $FreeBSD$
+#
+PROG=	runtest
+MAN=
+SRCS=	runtest.c
+
+.include <bsd.prog.mk>

sys/tests/runtest/runtest.c

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+/* $FreeBSD$ */
+/*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
+ * Copyright (c) 2020 Mellanox Technologies. 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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 <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <unistd.h>
+#include <string.h>
+#include <err.h>
+
+#include <sys/sysctl.h>
+
+#include "../kern_testfrwk.h"
+#include "../callout_test.h"
+
+static struct kern_test kern_test = {
+	.num_threads = 1,
+	.tot_threads_running = 1,
+};
+
+static struct callout_test callout_test = {
+	.number_of_callouts = 1,
+	.test_number = 0,
+};
+
+static void
+usage()
+{
+	fprintf(stderr, "Usage: runtest -n <testname> -j <numthreads> [ -c <numcallouts> -t <testnumber> ]\n");
+	exit(0);
+}
+
+int
+main(int argc, char **argv)
+{
+	static const char options[] = "n:j:c:t:h";
+	int ch;
+
+	while ((ch = getopt(argc, argv, options)) != -1) {
+		switch (ch) {
+		case 'n':
+			strlcpy(kern_test.name, optarg, sizeof(kern_test.name));
+			break;
+		case 'j':
+			kern_test.num_threads =
+			    kern_test.tot_threads_running = atoi(optarg);
+			break;
+		case 'c':
+			callout_test.number_of_callouts = atoi(optarg);
+			break;
+		case 't':
+			callout_test.test_number = atoi(optarg);
+			break;
+		default:
+			usage();
+			break;
+		}
+	}
+
+	if (kern_test.name[0] == 0)
+		usage();
+	if (strcmp(kern_test.name, "callout_test") == 0)
+		memcpy(kern_test.test_options, &callout_test, sizeof(callout_test));
+
+	if (sysctlbyname("kern.testfrwk.runtest", NULL, NULL, &kern_test, sizeof(kern_test)) != 0)
+		errx(1, "Test '%s' could not be started", kern_test.name);
+	return (0);
+}