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zdtm: Add memfd hugetlb test

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Signed-off-by: Bui Quang Minh <minhquangbui99@gmail.com>
This commit is contained in:
Bui Quang Minh 2021-10-26 22:31:44 +07:00 • committed by Andrei Vagin
parent ffa2688969
commit d22e472cf2
4 changed files with 50 additions and 6 deletions
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2
test/zdtm/static/Makefile
View file

@ -248,6 +248,7 @@ TST_NOFILE := \
memfd00 \
memfd01 \
memfd02 \
memfd02-hugetlb \
memfd03 \
shmemfd \
shmemfd-priv \
@ -618,6 +619,7 @@ socket-tcp6-closing: CFLAGS += -D ZDTM_IPV6
socket-tcp6-unconn: CFLAGS += -D ZDTM_IPV6
socket-tcp4v6-last-ack: CFLAGS += -D ZDTM_TCP_LAST_ACK -D ZDTM_IPV4V6
socket-tcp4v6-closing: CFLAGS += -D ZDTM_IPV4V6
memfd02-hugetlb: CFLAGS += -D ZDTM_HUGETLB
sockets00-seqpacket: CFLAGS += -D ZDTM_UNIX_SEQPACKET
sockets01-seqpacket: CFLAGS += -D ZDTM_UNIX_SEQPACKET

1
test/zdtm/static/memfd02-hugetlb.c Symbolic link
View file

@ -0,0 +1 @@
memfd02.c

1
test/zdtm/static/memfd02-hugetlb.desc Normal file
View file

@ -0,0 +1 @@
{'feature': 'memfd_hugetlb'}

52
test/zdtm/static/memfd02.c
View file

@ -13,6 +13,10 @@
#include "zdtmtst.h"
#ifndef MFD_HUGETLB
#define MFD_HUGETLB 4
#endif
const char *test_doc = "memfd mmap";
const char *test_author = "Nicolas Viennot <Nicolas.Viennot@twosigma.com>";
@ -29,14 +33,24 @@ static int _memfd_create(const char *name, unsigned int flags)
int main(int argc, char *argv[])
{
#ifdef ZDTM_HUGETLB
#define LEN (2 * (1 << 20)) /* 2MB */
#else
#define LEN 6
int fd;
#endif
int fd, flag = 0;
void *addr_shared, *addr_private;
char buf[LEN];
dev_t dev1, dev2;
test_init(argc, argv);
fd = _memfd_create("somename", MFD_CLOEXEC);
#ifdef ZDTM_HUGETLB
flag = MFD_HUGETLB;
#endif
fd = _memfd_create("somename", MFD_CLOEXEC | flag);
if (fd < 0)
err(1, "Can't call memfd_create");
@ -47,16 +61,32 @@ int main(int argc, char *argv[])
if (addr_shared == MAP_FAILED)
err(1, "Can't mmap");
dev1 = get_mapping_dev(addr_shared);
if (dev1 == (dev_t)-1) {
fail("Can't get mapping dev");
return 1;
}
#ifdef ZDTM_HUGETLB
strcpy(addr_shared, "write1");
#else
write(fd, "write1", LEN);
#endif
addr_private = mmap(NULL, LEN, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0);
if (addr_private == MAP_FAILED)
err(1, "Can't mmap");
dev2 = get_mapping_dev(addr_private);
if (dev2 == (dev_t)-1) {
fail("Can't get mapping dev");
return 1;
}
test_daemon();
test_waitsig();
if (memcmp(addr_shared, "write1", LEN)) {
if (strncmp(addr_shared, "write1", LEN)) {
fail("content mismatch (shared)");
return 1;
}
@ -68,23 +98,33 @@ int main(int argc, char *argv[])
return 1;
}
if (memcmp(buf, "write2", LEN)) {
if (strncmp(buf, "write2", LEN)) {
fail("content mismatch (shared)");
return 1;
}
if (memcmp(addr_private, "write2", LEN)) {
if (strncmp(addr_private, "write2", LEN)) {
fail("content mismatch (private)");
return 1;
}
strcpy(addr_private, "write3");
if (memcmp(addr_shared, "write2", LEN)) {
if (strncmp(addr_shared, "write2", LEN)) {
fail("content mismatch (shared)");
return 1;
}
if (dev1 != get_mapping_dev(addr_shared)) {
fail("Mapping dev mismatch");
return 1;
}
if (dev2 != get_mapping_dev(addr_private)) {
fail("Mapping dev mismatch");
return 1;
}
pass();
return 0;