1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 1998 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate #include <stdlib.h>
31*0Sstevel@tonic-gate #include <unistd.h>
32*0Sstevel@tonic-gate #include <sys/types.h>
33*0Sstevel@tonic-gate #include "mtmalloc.h"
34*0Sstevel@tonic-gate
35*0Sstevel@tonic-gate /*
36*0Sstevel@tonic-gate * This file tests for reference after free
37*0Sstevel@tonic-gate *
38*0Sstevel@tonic-gate * cc -O -o dirtymem dirtymem.c -lmtmalloc -I../common
39*0Sstevel@tonic-gate */
40*0Sstevel@tonic-gate
41*0Sstevel@tonic-gate struct a_struct {
42*0Sstevel@tonic-gate int a;
43*0Sstevel@tonic-gate char *b;
44*0Sstevel@tonic-gate double c;
45*0Sstevel@tonic-gate } struct_o_death;
46*0Sstevel@tonic-gate
47*0Sstevel@tonic-gate
main(int argc,char ** argv)48*0Sstevel@tonic-gate main(int argc, char ** argv)
49*0Sstevel@tonic-gate {
50*0Sstevel@tonic-gate struct a_struct *foo, *leak;
51*0Sstevel@tonic-gate int ncpus = sysconf(_SC_NPROCESSORS_CONF);
52*0Sstevel@tonic-gate
53*0Sstevel@tonic-gate mallocctl(MTDEBUGPATTERN, 1);
54*0Sstevel@tonic-gate foo = (struct a_struct *)malloc(sizeof (struct_o_death));
55*0Sstevel@tonic-gate
56*0Sstevel@tonic-gate free(foo);
57*0Sstevel@tonic-gate foo->a = 4;
58*0Sstevel@tonic-gate
59*0Sstevel@tonic-gate /*
60*0Sstevel@tonic-gate * We have to make sure we allocate from the same pool
61*0Sstevel@tonic-gate * as the last time. Turn the rotor with malloc until
62*0Sstevel@tonic-gate * we get back to where we started.
63*0Sstevel@tonic-gate */
64*0Sstevel@tonic-gate while (ncpus-- > 1)
65*0Sstevel@tonic-gate leak = malloc(sizeof (struct_o_death));
66*0Sstevel@tonic-gate
67*0Sstevel@tonic-gate fprintf(stderr, "malloc struct again\n");
68*0Sstevel@tonic-gate fprintf(stderr, "we should dump core\n");
69*0Sstevel@tonic-gate foo = malloc(sizeof (struct_o_death));
70*0Sstevel@tonic-gate
71*0Sstevel@tonic-gate exit(0);
72*0Sstevel@tonic-gate }
73