mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-25 19:14:04 +00:00
2e13f1f029
Move static and transition into zdtm top. We can't move all the micro tests themselves, as we need to distinguish static from non static (zdtm.py makes additional checks on static ones). Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>
63 lines
1.5 KiB
C
63 lines
1.5 KiB
C
#include <errno.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <sys/mman.h>
|
|
#include <signal.h>
|
|
#include <sys/wait.h>
|
|
|
|
#include "zdtmtst.h"
|
|
|
|
const char *test_doc = "Check that a few grow-down VMA-s are restored correctly";
|
|
const char *test_author = "Andrew Vagin <avagin@openvz.org>";
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
char *start_addr, *grow_down;
|
|
test_init(argc, argv);
|
|
|
|
start_addr = mmap(NULL, PAGE_SIZE * 10, PROT_READ | PROT_WRITE,
|
|
MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
|
|
if (start_addr == MAP_FAILED) {
|
|
pr_perror("Can't mal a new region");
|
|
return 1;
|
|
}
|
|
munmap(start_addr, PAGE_SIZE * 10);
|
|
|
|
grow_down = mmap(start_addr + PAGE_SIZE * 3, PAGE_SIZE * 3,
|
|
PROT_READ | PROT_WRITE,
|
|
MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED | MAP_GROWSDOWN, -1, 0);
|
|
if (grow_down == MAP_FAILED) {
|
|
pr_perror("Can't mal a new region");
|
|
return 1;
|
|
}
|
|
|
|
grow_down[0 * PAGE_SIZE] = 'x';
|
|
grow_down[1 * PAGE_SIZE] = 'y';
|
|
grow_down[2 * PAGE_SIZE] = 'z';
|
|
|
|
/*
|
|
* Split the grow-down vma on three parts.
|
|
* Only the irst one will have a guard page
|
|
*/
|
|
if (mprotect(grow_down + PAGE_SIZE, PAGE_SIZE, PROT_READ)) {
|
|
pr_perror("Can't change set protection on a region of memory");
|
|
return 1;
|
|
}
|
|
|
|
test_daemon();
|
|
test_waitsig();
|
|
|
|
test_msg("%c %c %c\n", grow_down[0 * PAGE_SIZE],
|
|
grow_down[1 * PAGE_SIZE], grow_down[2 * PAGE_SIZE]);
|
|
|
|
if (grow_down[0 * PAGE_SIZE] != 'x')
|
|
return 1;
|
|
if (grow_down[1 * PAGE_SIZE] != 'y')
|
|
return 1;
|
|
if (grow_down[2 * PAGE_SIZE] != 'z')
|
|
return 1;
|
|
|
|
pass();
|
|
|
|
return 0;
|
|
}
|