1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #include <signal.h> 28 #include <stdlib.h> 29 #include <unistd.h> 30 31 /* 32 * The canonical name should be 'go' since we prefer symbol names with fewer 33 * leading underscores. 34 */ 35 36 extern int _go(int); 37 38 static int __unused go(int a)39go(int a) 40 { 41 return (a + 1); 42 } 43 44 static void handle(int sig __unused)45handle(int sig __unused) 46 { 47 _go(1); 48 exit(0); 49 } 50 51 int main(void)52main(void) 53 { 54 (void) signal(SIGUSR1, handle); 55 for (;;) 56 getpid(); 57 } 58 59 #pragma weak _go = go 60