xref: /freebsd/cddl/contrib/opensolaris/cmd/dtrace/test/tst/common/pid/tst.ret2.c (revision c6989859)

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */

/*
 * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#include <signal.h>
#include <stdlib.h>
#include <unistd.h>

/*
 * The canonical name should be 'go' since we prefer symbol names with fewer
 * leading underscores.
 */

extern int a;

int go(void);

int a = 100;

int
go(void)
{
	return (a);
}

static void
handle(int sig __unused)
{
	go();
	exit(0);
}

int
main(void)
{
	(void) signal(SIGUSR1, handle);
	for (;;)
		getpid();
}