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https://github.com/checkpoint-restore/criu.git
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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>
66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
#include <errno.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/mman.h>
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#include "zdtmtst.h"
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const char *test_doc = "Check that VMA-s with MAP_GROWSDOWN are restored correctly";
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const char *test_author = "Andrew Vagin <avagin@openvz.org>";
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int main(int argc, char **argv)
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{
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char *start_addr, *fake_grow_down, *test_addr, *grow_down;
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test_init(argc, argv);
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start_addr = mmap(NULL, PAGE_SIZE * 10, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, -1, 0);
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if (start_addr == MAP_FAILED) {
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pr_perror("Can't mal a new region");
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return 1;
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}
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munmap(start_addr, PAGE_SIZE * 10);
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fake_grow_down = mmap(start_addr + PAGE_SIZE * 5, PAGE_SIZE,
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PROT_READ | PROT_WRITE,
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MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED | MAP_GROWSDOWN, -1, 0);
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if (fake_grow_down == MAP_FAILED) {
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pr_perror("Can't mal a new region");
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return 1;
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}
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fake_grow_down[0] = 'c';
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*(fake_grow_down - 1) = 'b';
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/* overlap the guard page of fake_grow_down */
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test_addr = mmap(start_addr + PAGE_SIZE * 3, PAGE_SIZE,
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PROT_READ | PROT_WRITE,
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MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED, -1, 0);
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if (test_addr == MAP_FAILED) {
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pr_perror("Can't mal a new region");
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return 1;
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}
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grow_down = mmap(start_addr + PAGE_SIZE * 2, PAGE_SIZE,
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PROT_READ | PROT_WRITE,
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MAP_ANONYMOUS | MAP_PRIVATE | MAP_FIXED | MAP_GROWSDOWN, -1, 0);
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if (grow_down == MAP_FAILED) {
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pr_perror("Can't mal a new region");
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return 1;
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}
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test_daemon();
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test_waitsig();
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munmap(test_addr, PAGE_SIZE);
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if (fake_grow_down[0] != 'c' || *(fake_grow_down - 1) != 'b') {
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fail("%c %c\n", fake_grow_down[0], *(fake_grow_down - 1));
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return 1;
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}
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grow_down[0] = 'z';
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*(grow_down - 1) = 'x';
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pass();
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return 0;
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}
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