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zdtm: Add MAP_HUGETLB mappings test for parent-child relationship processes

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Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
This commit is contained in:
Bui Quang Minh 2021-12-31 17:15:18 +07:00 • committed by Andrei Vagin
parent 87a5694b4a
commit 2dc6d146b9
2 changed files with 137 additions and 0 deletions
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1
test/zdtm/static/Makefile
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@ -132,6 +132,7 @@ TST_NOFILE := \
maps04 \
maps05 \
maps09 \
maps10 \
mlock_setuid \
xids00 \
groups \

136
test/zdtm/static/maps10.c Normal file
View file

@ -0,0 +1,136 @@
#include <stdint.h>
#include <signal.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <sys/wait.h>
#include "zdtmtst.h"
const char *test_doc = "Test MAP_HUGETLB mapping in parent-child relationship processes";
const char *test_author = "Bui Quang Minh <minhquangbui99@gmail.com>";
#define MEM_SIZE (2UL * (1UL << 20)) /* 2MB */
int main(int argc, char **argv)
{
void *p1, *p2, *s1;
task_waiter_t t;
pid_t pid;
uint32_t crc, tmp_crc;
int status;
test_init(argc, argv);
task_waiter_init(&t);
p1 = mmap(NULL, MEM_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, 0, 0);
if (p1 == MAP_FAILED) {
pr_perror("Map failed");
return 1;
}
p2 = mmap(NULL, MEM_SIZE, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, 0, 0);
if (p2 == MAP_FAILED) {
pr_perror("Map failed");
return 1;
}
s1 = mmap(NULL, MEM_SIZE, PROT_READ | PROT_WRITE, MAP_SHARED | MAP_ANONYMOUS | MAP_HUGETLB, 0, 0);
if (s1 == MAP_FAILED) {
pr_perror("Map failed");
return 1;
}
crc = ~0;
datagen(p1, MEM_SIZE, &crc);
crc = ~0;
datagen(p2, MEM_SIZE, &crc);
tmp_crc = crc;
pid = test_fork();
if (pid < 0) {
pr_perror("fork failed");
return 1;
}
if (pid == 0) {
crc = ~0;
datagen(p2, MEM_SIZE, &crc);
tmp_crc = crc;
crc = ~0;
datagen(s1, MEM_SIZE, &crc);
task_waiter_complete(&t, 1);
test_waitsig();
crc = ~0;
if (datachk(p1, MEM_SIZE, &crc)) {
fail("Data mismatch");
return 1;
}
crc = ~0;
if (datachk(p2, MEM_SIZE, &crc)) {
fail("Data mismatch");
return 1;
}
if (crc != tmp_crc) {
fail("Data mismatch");
return 1;
}
crc = ~0;
if (datachk(s1, MEM_SIZE, &crc)) {
fail("Data mismatch");
return 1;
}
return 0;
}
task_waiter_wait4(&t, 1);
test_daemon();
test_waitsig();
kill(pid, SIGTERM);
wait(&status);
if (WIFEXITED(status)) {
if (WEXITSTATUS(status))
goto err;
} else {
goto err;
}
crc = ~0;
if (datachk(p1, MEM_SIZE, &crc)) {
fail("Data mismatch");
return 1;
}
crc = ~0;
if (datachk(p2, MEM_SIZE, &crc)) {
fail("Data mismatch");
return 1;
}
if (crc != tmp_crc) {
fail("Data mismatch");
return 1;
}
crc = ~0;
if (datachk(s1, MEM_SIZE, &crc)) {
fail("Data mismatch");
return 1;
}
pass();
return 0;
err:
if (waitpid(-1, NULL, WNOHANG) == 0) {
kill(pid, SIGTERM);
wait(NULL);
}
return 1;
}