1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/* This testcase is part of GDB, the GNU debugger.
Copyright 2018-2019 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <malloc.h>
#include <sys/mman.h>
int
main (void)
{
char *ptr;
int ind, cnt;
cnt = 100000;
for (ind = 0; ind < cnt; ind++)
{
ptr = mmap (NULL, 100, PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
if (ptr == NULL)
{
fprintf (stderr, "Error allocating memory using mmap\n");
return -1;
}
ptr = mmap (NULL, 100, PROT_NONE, MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
if (ptr == NULL)
{
fprintf (stderr, "Error allocating memory using mmap\n");
return -1;
}
}
ptr = NULL;
*ptr = '\0';
return 0;
}
|
