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, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright (c) 1998 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27#pragma	ident	"%Z%%M%	%I%	%E% SMI"
28
29#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <sys/types.h>
33#include "mtmalloc.h"
34
35/*
36 * This file tests for reference after free
37 *
38 * cc -O -o dirtymem dirtymem.c -lmtmalloc -I../common
39 */
40
41struct a_struct {
42	int a;
43	char *b;
44	double c;
45} struct_o_death;
46
47
48main(int argc, char ** argv)
49{
50	struct a_struct *foo, *leak;
51	int ncpus = sysconf(_SC_NPROCESSORS_CONF);
52
53	mallocctl(MTDEBUGPATTERN, 1);
54	foo = (struct a_struct *)malloc(sizeof (struct_o_death));
55
56	free(foo);
57	foo->a = 4;
58
59	/*
60	 * We have to make sure we allocate from the same pool
61	 * as the last time. Turn the rotor with malloc until
62	 * we get back to where we started.
63	 */
64	while (ncpus-- > 1)
65		leak = malloc(sizeof (struct_o_death));
66
67	fprintf(stderr, "malloc struct again\n");
68	fprintf(stderr, "we should dump core\n");
69	foo = malloc(sizeof (struct_o_death));
70
71	exit(0);
72}
73