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
51
52
53
54
55
56
|
#include <errno.h>
#include <fcntl.h>
#include <unistd.h>
#include <stdlib.h>
#include <signal.h>
#include <string.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <linux/limits.h>
#include "zdtmtst.h"
#define MEM_SIZE (1L << 29)
const char *test_doc = "Test big mappings";
const char *test_author = "Andrew Vagin <avagin@openvz.org";
int main(int argc, char **argv)
{
void *m;
uint32_t crc;
int i;
test_init(argc, argv);
m = mmap(NULL, MEM_SIZE, PROT_WRITE | PROT_READ, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
if (m == MAP_FAILED) {
fail();
return 1;
}
crc = ~0;
datagen(m, MEM_SIZE, &crc);
for (i = 0; i < MEM_SIZE / (1 << 20); i++)
if (mprotect(m + (lrand48() * PAGE_SIZE % MEM_SIZE), PAGE_SIZE, PROT_NONE)) {
pr_perror("mprotect");
return 1;
}
test_daemon();
test_waitsig();
if (mprotect(m, MEM_SIZE, PROT_READ))
pr_perror("mprotect");
crc = ~0;
if (datachk(m, MEM_SIZE, &crc))
fail("Mem corrupted");
else
pass();
return 0;
}
|
