[LTP] [PATCH V11 1/2] syscalls/semtimedop: Add support for semtimedop and its time64 version
Viresh Kumar
viresh.kumar@linaro.org
Wed Sep 2 17:00:44 CEST 2020
This adds support for semtimedop() and its time64 variant to the
existing semop() syscall tests.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
---
V11:
- s/all_variants/semtimedop_only/
- Change timeout to 10 us for all the tests except semop03, that fails
randomly if the timeout is less than 10 ms.
testcases/kernel/syscalls/ipc/semop/semop.h | 55 +++++++++++++++++++
testcases/kernel/syscalls/ipc/semop/semop01.c | 26 ++++++++-
testcases/kernel/syscalls/ipc/semop/semop02.c | 44 +++++++++++----
testcases/kernel/syscalls/ipc/semop/semop03.c | 15 ++++-
4 files changed, 125 insertions(+), 15 deletions(-)
create mode 100644 testcases/kernel/syscalls/ipc/semop/semop.h
diff --git a/testcases/kernel/syscalls/ipc/semop/semop.h b/testcases/kernel/syscalls/ipc/semop/semop.h
new file mode 100644
index 000000000000..1fac31818108
--- /dev/null
+++ b/testcases/kernel/syscalls/ipc/semop/semop.h
@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#ifndef SEMOP_VAR__
+#define SEMOP_VAR__
+
+#include <sys/sem.h>
+#include "tst_timer.h"
+
+static inline int sys_semtimedop(int semid, struct sembuf *sops, size_t nsops,
+ void *timeout)
+{
+ return tst_syscall(__NR_semtimedop, semid, sops, nsops, timeout);
+}
+
+static inline int sys_semtimedop_time64(int semid, struct sembuf *sops,
+ size_t nsops, void *timeout)
+{
+ return tst_syscall(__NR_semtimedop_time64, semid, sops, nsops, timeout);
+}
+
+struct test_variants {
+ int (*semop)(int semid, struct sembuf *sops, size_t nsops);
+ int (*semtimedop)(int semid, struct sembuf *sops, size_t nsops, void *timeout);
+ enum tst_ts_type type;
+ char *desc;
+} variants[] = {
+ { .semop = semop, .type = TST_LIBC_TIMESPEC, .desc = "semop: syscall"},
+
+#if (__NR_semtimedop != __LTP__NR_INVALID_SYSCALL)
+ { .semtimedop = sys_semtimedop, .type = TST_KERN_OLD_TIMESPEC, .desc = "semtimedop: syscall with old kernel spec"},
+#endif
+
+#if (__NR_semtimedop_time64 != __LTP__NR_INVALID_SYSCALL)
+ { .semtimedop = sys_semtimedop_time64, .type = TST_KERN_TIMESPEC, .desc = "semtimedop: syscall time64 with kernel spec"},
+#endif
+};
+
+static inline int call_semop(struct test_variants *tv, int semid,
+ struct sembuf *sops, size_t nsops, void *timeout)
+{
+ if (tv->semop)
+ return tv->semop(semid, sops, nsops);
+
+ return tv->semtimedop(semid, sops, nsops, timeout);
+}
+
+static inline void semop_supported_by_kernel(struct test_variants *tv)
+{
+ /* Check if the syscall is implemented on the platform */
+ TEST(call_semop(tv, 0, NULL, 0, NULL));
+ if (TST_RET == -1 && TST_ERR == ENOSYS)
+ tst_brk(TCONF, "Test not supported on kernel/platform");
+}
+
+#endif /* SEMOP_VAR__ */
diff --git a/testcases/kernel/syscalls/ipc/semop/semop01.c b/testcases/kernel/syscalls/ipc/semop/semop01.c
index 2daf6bbc5c4e..add9d07f3ad4 100644
--- a/testcases/kernel/syscalls/ipc/semop/semop01.c
+++ b/testcases/kernel/syscalls/ipc/semop/semop01.c
@@ -12,6 +12,7 @@
#include "tst_test.h"
#include "libnewipc.h"
#include "lapi/semun.h"
+#include "semop.h"
#define NSEMS 4
@@ -21,14 +22,23 @@ static key_t semkey;
static unsigned short int sarr[PSEMS];
static union semun get_arr = {.array = sarr};
static struct sembuf sops[PSEMS];
+static struct tst_ts timeout;
-static void run(void)
+static struct test_case_t {
+ struct tst_ts *to;
+} tc[] = {
+ {NULL},
+ {&timeout}
+};
+
+static void run(unsigned int n)
{
+ struct test_variants *tv = &variants[tst_variant];
union semun arr = { .val = 0 };
int fail = 0;
int i;
- TEST(semop(sem_id, sops, NSEMS));
+ TEST(call_semop(tv, sem_id, sops, NSEMS, tst_ts_get(tc[n].to)));
if (TST_RET == -1) {
tst_res(TFAIL | TTERRNO, "semop() failed");
return;
@@ -56,8 +66,16 @@ static void run(void)
static void setup(void)
{
+ struct test_variants *tv = &variants[tst_variant];
int i;
+ tst_res(TINFO, "Testing variant: %s", tv->desc);
+ semop_supported_by_kernel(tv);
+
+ timeout.type = tv->type;
+ tst_ts_set_sec(&timeout, 0);
+ tst_ts_set_nsec(&timeout, 10000);
+
semkey = GETIPCKEY();
sem_id = semget(semkey, PSEMS, IPC_CREAT | IPC_EXCL | SEM_RA);
@@ -80,7 +98,9 @@ static void cleanup(void)
}
static struct tst_test test = {
- .test_all = run,
+ .test = run,
+ .tcnt = ARRAY_SIZE(tc),
+ .test_variants = ARRAY_SIZE(variants),
.setup = setup,
.cleanup = cleanup,
.needs_tmpdir = 1,
diff --git a/testcases/kernel/syscalls/ipc/semop/semop02.c b/testcases/kernel/syscalls/ipc/semop/semop02.c
index 0dff8e537719..8d59e12bde92 100644
--- a/testcases/kernel/syscalls/ipc/semop/semop02.c
+++ b/testcases/kernel/syscalls/ipc/semop/semop02.c
@@ -10,6 +10,8 @@
* EFBIG - sem_num > number of semaphores in a set
* EAGAIN - semop = 0 for non-zero semaphore and IPC_NOWAIT passed in flags
* EAGAIN - semop = -1 for zero semaphore and IPC_NOWAIT passed in flags
+ * EAGAIN - semop = 0 and timeout happens
+ * EAGAIN - semop = -1 and timeout happens
*
* Copyright (c) International Business Machines Corp., 2001
* 03/2001 - Written by Wayne Boyer
@@ -23,17 +25,20 @@
#include "tst_test.h"
#include "libnewipc.h"
#include "lapi/semun.h"
+#include "semop.h"
static int valid_sem_id = -1;
static int noperm_sem_id = -1;
static int bad_sem_id = -1;
static short sem_op_max, sem_op_1 = 1, sem_op_negative = -1, sem_op_zero = 0;
static struct sembuf *faulty_buf;
+static struct tst_ts timeout;
#define NSOPS 1
#define BIGOPS 1024
static struct test_case_t {
+ int semtimedop_only;
int *semid;
struct sembuf **buf;
short *sem_op;
@@ -44,25 +49,35 @@ static struct test_case_t {
int arr_val;
int error;
} tc[] = {
- {&valid_sem_id, NULL, &sem_op_1, 0, 0, 0, BIGOPS, 1, E2BIG},
- {&noperm_sem_id, NULL, &sem_op_1, 0, 0, 0, NSOPS, 1, EACCES},
- {&valid_sem_id, &faulty_buf, &sem_op_1, 0, 0, 0, NSOPS, 1, EFAULT},
- {&valid_sem_id, NULL, &sem_op_1, 0, 0, 0, 0, 1, EINVAL},
- {&bad_sem_id, NULL, &sem_op_1, 0, 0, 0, NSOPS, 1, EINVAL},
- {&valid_sem_id, NULL, &sem_op_max, 0, 0, 0, 1, 1, ERANGE},
- {&valid_sem_id, NULL, &sem_op_1, 0, -1, SEM_UNDO, 1, 1, EFBIG},
- {&valid_sem_id, NULL, &sem_op_1, 0, PSEMS + 1, SEM_UNDO, 1, 1, EFBIG},
- {&valid_sem_id, NULL, &sem_op_zero, 2, 2, IPC_NOWAIT, 1, 1, EAGAIN},
- {&valid_sem_id, NULL, &sem_op_negative, 2, 2, IPC_NOWAIT, 1, 0, EAGAIN}
+ {0, &valid_sem_id, NULL, &sem_op_1, 0, 0, 0, BIGOPS, 1, E2BIG},
+ {0, &noperm_sem_id, NULL, &sem_op_1, 0, 0, 0, NSOPS, 1, EACCES},
+ {0, &valid_sem_id, &faulty_buf, &sem_op_1, 0, 0, 0, NSOPS, 1, EFAULT},
+ {0, &valid_sem_id, NULL, &sem_op_1, 0, 0, 0, 0, 1, EINVAL},
+ {0, &bad_sem_id, NULL, &sem_op_1, 0, 0, 0, NSOPS, 1, EINVAL},
+ {0, &valid_sem_id, NULL, &sem_op_max, 0, 0, 0, 1, 1, ERANGE},
+ {0, &valid_sem_id, NULL, &sem_op_1, 0, -1, SEM_UNDO, 1, 1, EFBIG},
+ {0, &valid_sem_id, NULL, &sem_op_1, 0, PSEMS + 1, SEM_UNDO, 1, 1, EFBIG},
+ {0, &valid_sem_id, NULL, &sem_op_zero, 2, 2, IPC_NOWAIT, 1, 1, EAGAIN},
+ {0, &valid_sem_id, NULL, &sem_op_negative, 2, 2, IPC_NOWAIT, 1, 0, EAGAIN},
+ {1, &valid_sem_id, NULL, &sem_op_zero, 0, 0, SEM_UNDO, 1, 1, EAGAIN},
+ {1, &valid_sem_id, NULL, &sem_op_negative, 0, 0, SEM_UNDO, 1, 0, EAGAIN},
};
static void setup(void)
{
+ struct test_variants *tv = &variants[tst_variant];
struct passwd *ltpuser;
key_t semkey;
union semun arr;
struct seminfo ipc_buf;
+ tst_res(TINFO, "Testing variant: %s", tv->desc);
+ semop_supported_by_kernel(tv);
+
+ timeout.type = tv->type;
+ tst_ts_set_sec(&timeout, 0);
+ tst_ts_set_nsec(&timeout, 10000);
+
ltpuser = SAFE_GETPWNAM("nobody");
SAFE_SETUID(ltpuser->pw_uid);
@@ -88,6 +103,7 @@ static void setup(void)
static void run(unsigned int i)
{
+ struct test_variants *tv = &variants[tst_variant];
union semun arr = {.val = tc[i].arr_val};
struct sembuf buf = {
.sem_op = *tc[i].sem_op,
@@ -96,6 +112,11 @@ static void run(unsigned int i)
};
struct sembuf *ptr = &buf;
+ if (tc[i].semtimedop_only && tv->semop) {
+ tst_res(TCONF, "Test not supported for variant");
+ return;
+ }
+
if (*tc[i].semid == valid_sem_id) {
if (semctl(valid_sem_id, tc[i].ctl_sem_num, SETVAL, arr) == -1)
tst_brk(TBROK | TERRNO, "semctl() SETVAL failed");
@@ -104,7 +125,7 @@ static void run(unsigned int i)
if (tc[i].buf)
ptr = *tc[i].buf;
- TEST(semop(*(tc[i].semid), ptr, tc[i].t_ops));
+ TEST(call_semop(tv, *(tc[i].semid), ptr, tc[i].t_ops, tst_ts_get(&timeout)));
if (TST_RET != -1) {
tst_res(TFAIL | TTERRNO, "call succeeded unexpectedly");
@@ -136,6 +157,7 @@ static void cleanup(void)
static struct tst_test test = {
.test = run,
.tcnt = ARRAY_SIZE(tc),
+ .test_variants = ARRAY_SIZE(variants),
.setup = setup,
.cleanup = cleanup,
.needs_tmpdir = 1,
diff --git a/testcases/kernel/syscalls/ipc/semop/semop03.c b/testcases/kernel/syscalls/ipc/semop/semop03.c
index 25123f08c239..43d22a8ee1a7 100644
--- a/testcases/kernel/syscalls/ipc/semop/semop03.c
+++ b/testcases/kernel/syscalls/ipc/semop/semop03.c
@@ -15,9 +15,11 @@
#include "tst_test.h"
#include "libnewipc.h"
#include "lapi/semun.h"
+#include "semop.h"
static key_t semkey;
static int sem_id = -1;
+static struct tst_ts timeout;
struct test_case_t {
union semun semunptr;
@@ -34,13 +36,14 @@ struct test_case_t {
static void do_child(int i)
{
+ struct test_variants *tv = &variants[tst_variant];
struct sembuf s_buf = {
.sem_op = tc[i].op,
.sem_flg = tc[i].flg,
.sem_num = tc[i].num,
};
- TEST(semop(sem_id, &s_buf, 1));
+ TEST(call_semop(tv, sem_id, &s_buf, 1, tst_ts_get(&timeout)));
if (TST_RET != -1) {
tst_res(TFAIL, "call succeeded when error expected");
exit(0);
@@ -62,6 +65,15 @@ static void sighandler(int sig)
static void setup(void)
{
+ struct test_variants *tv = &variants[tst_variant];
+
+ tst_res(TINFO, "Testing variant: %s", tv->desc);
+ semop_supported_by_kernel(tv);
+
+ timeout.type = tv->type;
+ tst_ts_set_sec(&timeout, 0);
+ tst_ts_set_nsec(&timeout, 10000000);
+
SAFE_SIGNAL(SIGHUP, sighandler);
semkey = GETIPCKEY();
@@ -119,6 +131,7 @@ static void run(unsigned int i)
static struct tst_test test = {
.test = run,
.tcnt = ARRAY_SIZE(tc),
+ .test_variants = ARRAY_SIZE(variants),
.setup = setup,
.cleanup = cleanup,
.needs_tmpdir = 1,
--
2.25.0.rc1.19.g042ed3e048af
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