1 /* 2 * SPDX-License-Identifier: BSD-2-Clause 3 * 4 * Copyright (C) 2019 Andrew Gierth 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25 * SUCH DAMAGE. 26 * 27 * Though this file is initially distributed under the 2-clause BSD license, 28 * the author grants permission for its redistribution under alternative 29 * licenses as set forth at <https://rhodiumtoad.github.io/RELICENSE.txt>. 30 * This paragraph and the RELICENSE.txt file are not part of the license and 31 * may be omitted in redistributions. 32 */ 33 34 #include <sys/cdefs.h> 35 __FBSDID("$FreeBSD$"); 36 37 #include <stdio.h> 38 #include <stdlib.h> 39 #include <stdarg.h> 40 #include <string.h> 41 #include <unistd.h> 42 #include <pthread.h> 43 44 void mod_main(int op); 45 46 static pthread_t thr; 47 48 static void * 49 mod_thread(void *ptr __unused) 50 { 51 char *volatile dummy; 52 53 dummy = malloc(500); 54 *dummy = 'a'; 55 return (NULL); 56 } 57 58 void 59 mod_main(int op) 60 { 61 int rc; 62 63 switch (op) { 64 case 1: 65 rc = pthread_create(&thr, NULL, mod_thread, NULL); 66 if (rc != 0) 67 _exit(1); 68 break; 69 case 0: 70 pthread_join(thr, NULL); 71 break; 72 } 73 } 74 75