xref: /illumos-gate/usr/src/lib/libmtmalloc/tests/failwide.c (revision d48be21240dfd051b689384ce2b23479d757f2d8)
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 #include <stdio.h>
28 #include <stdlib.h>
29 #include <sys/types.h>
30 #include <limits.h>
31 
32 /*
33  * This file tests for large (2GB and greater) allocations.
34  * this test should fail the second allocation.
35  *
36  * cc -O -o failwide failwide.c -lmtmalloc
37  */
38 
39 main(int argc, char ** argv)
40 {
41 	char * foo;
42 	char * bar;
43 	size_t request = LONG_MAX;
44 
45 	foo = malloc(request/2); /* prime the pump */
46 
47 	foo = (char *)sbrk(0);
48 	printf ("Before big malloc brk is %p request %d\n", foo, request);
49 	foo = malloc(request + request/2);
50 	bar = (char *)sbrk(0);
51 	printf ("After big malloc brk is %p, should be the same.\n", bar);
52 }
53