* [LTP] [PATCH v2 1/2] Rewrite gettid01 test
2023-10-05 13:49 [LTP] [PATCH v2 0/2] Rewrite the gettid() testing suite Andrea Cervesato
@ 2023-10-05 13:49 ` Andrea Cervesato
2023-10-05 13:49 ` [LTP] [PATCH v2 2/2] Add gettid02 test Andrea Cervesato
2023-10-05 14:24 ` [LTP] [PATCH v2 0/2] Rewrite the gettid() testing suite Marius Kittler
2 siblings, 0 replies; 5+ messages in thread
From: Andrea Cervesato @ 2023-10-05 13:49 UTC (permalink / raw)
To: ltp
From: Andrea Cervesato <andrea.cervesato@suse.com>
The old test wasn't doing anything meaningful, but just checking that
__NR_gettid syscall is working. In this test we check that
tid == pid, in the case we are not inside a thread.
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
Check if we are inside a thread
Make use of tst_syscall
testcases/kernel/syscalls/gettid/gettid01.c | 105 ++++----------------
1 file changed, 20 insertions(+), 85 deletions(-)
diff --git a/testcases/kernel/syscalls/gettid/gettid01.c b/testcases/kernel/syscalls/gettid/gettid01.c
index 7e5b6b175..5f9623e9a 100644
--- a/testcases/kernel/syscalls/gettid/gettid01.c
+++ b/testcases/kernel/syscalls/gettid/gettid01.c
@@ -1,96 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * Crackerjack Project
- *
- * Copyright (C) 2007-2008, Hitachi, Ltd.
- * Author(s): Takahiro Yasui <takahiro.yasui.mp@hitachi.com>,
- * Yumiko Sugita <yumiko.sugita.yf@hitachi.com>,
- * Satoshi Fujiwara <sa-fuji@sdl.hitachi.co.jp>
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
- *
- * $Id: gettid01.c,v 1.5 2009/10/26 14:55:47 subrata_modak Exp $
+ * Copyright (C) 2023 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+/*\
+ * [Description]
*
+ * This test checks if parent pid is equal to tid in single-threaded
+ * application.
*/
-/* Porting from Crackerjack to LTP is done
- by Masatake YAMATO <yamato@redhat.com> */
-
-#include <sys/types.h>
-#include <linux/unistd.h>
-#include <errno.h>
-
-#include "test.h"
-
-void setup();
-void cleanup();
-
-char *TCID = "gettid01";
-
-int TST_TOTAL = 1;
-
-pid_t my_gettid(void)
-{
- return (pid_t) syscall(__NR_gettid);
-}
-
-int main(int ac, char **av)
-{
- int lc;
-
- tst_parse_opts(ac, av, NULL, NULL);
-
- setup();
-
- /*
- * The following loop checks looping state if -c option given
- */
- for (lc = 0; TEST_LOOPING(lc); lc++) {
+#include "tst_test.h"
+#include "lapi/syscalls.h"
- tst_count = 0;
-
- TEST(my_gettid());
-
- if (TEST_RETURN == -1) {
- tst_resm(TFAIL, "gettid() Failed, errno=%d: %s",
- TEST_ERRNO, strerror(TEST_ERRNO));
- } else {
- tst_resm(TPASS, "gettid() returned %ld",
- TEST_RETURN);
- }
- }
-
- cleanup();
- tst_exit();
-}
-
-/*
- * setup() - performs all ONE TIME setup for this test.
- */
-void setup(void)
+static void run(void)
{
+ long pid, tid;
- tst_sig(NOFORK, DEF_HANDLER, cleanup);
+ SAFE_FILE_LINES_SCANF("/proc/self/status", "Pid: %ld", &pid);
+ SAFE_FILE_LINES_SCANF("/proc/self/status", "Tgid: %ld", &tid);
- TEST_PAUSE;
+ if (pid != tid)
+ tst_brk(TBROK, "Test function has been moved inside a thread?");
+ TST_EXP_EQ_LI(tst_syscall(__NR_gettid), tst_syscall(__NR_getpid));
+ TST_EXP_EQ_LI(tst_syscall(__NR_gettid), pid);
}
-/*
- * cleanup() - performs all ONE TIME cleanup for this test at
- * completion or premature exit.
- */
-void cleanup(void)
-{
-}
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.35.3
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 5+ messages in thread* [LTP] [PATCH v2 2/2] Add gettid02 test
2023-10-05 13:49 [LTP] [PATCH v2 0/2] Rewrite the gettid() testing suite Andrea Cervesato
2023-10-05 13:49 ` [LTP] [PATCH v2 1/2] Rewrite gettid01 test Andrea Cervesato
@ 2023-10-05 13:49 ` Andrea Cervesato
2023-10-05 14:24 ` [LTP] [PATCH v2 0/2] Rewrite the gettid() testing suite Marius Kittler
2 siblings, 0 replies; 5+ messages in thread
From: Andrea Cervesato @ 2023-10-05 13:49 UTC (permalink / raw)
To: ltp
From: Andrea Cervesato <andrea.cervesato@suse.com>
This new test is checking if __NR_gettid syscall is properly handling a
multi-threaded application, by assigning a different TID for each
thread.
Signed-off-by: Andrea Cervesato <andrea.cervesato@suse.com>
---
Make use of tst_syscall
runtest/syscalls | 1 +
testcases/kernel/syscalls/gettid/.gitignore | 1 +
testcases/kernel/syscalls/gettid/Makefile | 4 +-
testcases/kernel/syscalls/gettid/gettid02.c | 68 +++++++++++++++++++++
4 files changed, 73 insertions(+), 1 deletion(-)
create mode 100644 testcases/kernel/syscalls/gettid/gettid02.c
diff --git a/runtest/syscalls b/runtest/syscalls
index 8652e0bd3..bba266ea3 100644
--- a/runtest/syscalls
+++ b/runtest/syscalls
@@ -538,6 +538,7 @@ getsockopt01 getsockopt01
getsockopt02 getsockopt02
gettid01 gettid01
+gettid02 gettid02
gettimeofday01 gettimeofday01
gettimeofday02 gettimeofday02
diff --git a/testcases/kernel/syscalls/gettid/.gitignore b/testcases/kernel/syscalls/gettid/.gitignore
index 78dce3499..9014f7c3a 100644
--- a/testcases/kernel/syscalls/gettid/.gitignore
+++ b/testcases/kernel/syscalls/gettid/.gitignore
@@ -1 +1,2 @@
/gettid01
+/gettid02
diff --git a/testcases/kernel/syscalls/gettid/Makefile b/testcases/kernel/syscalls/gettid/Makefile
index 4e9982f76..5345eb0f5 100644
--- a/testcases/kernel/syscalls/gettid/Makefile
+++ b/testcases/kernel/syscalls/gettid/Makefile
@@ -10,7 +10,9 @@ top_srcdir ?= ../../../..
include $(top_srcdir)/include/mk/testcases.mk
ifeq ($(ANDROID), 1)
-FILTER_OUT_MAKE_TARGETS += gettid01
+FILTER_OUT_MAKE_TARGETS += gettid01 gettid02
endif
+gettid02: LDLIBS += -lpthread
+
include $(top_srcdir)/include/mk/generic_leaf_target.mk
diff --git a/testcases/kernel/syscalls/gettid/gettid02.c b/testcases/kernel/syscalls/gettid/gettid02.c
new file mode 100644
index 000000000..22e843bad
--- /dev/null
+++ b/testcases/kernel/syscalls/gettid/gettid02.c
@@ -0,0 +1,68 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (C) 2023 SUSE LLC Andrea Cervesato <andrea.cervesato@suse.com>
+ */
+/*\
+ * [Description]
+ *
+ * This test spawns multiple threads, then check for each one of them if the
+ * parent ID is different AND if the thread ID is different from all the other
+ * spwaned threads.
+ */
+
+#include "tst_test.h"
+#include "lapi/syscalls.h"
+#include "tst_safe_pthread.h"
+
+#define THREADS_NUM 10
+
+static pid_t tids[THREADS_NUM];
+
+static void *threaded(void *arg)
+{
+ int i = *(int *)arg;
+ pid_t pid, tid;
+
+ pid = tst_syscall(__NR_getpid);
+ tid = tst_syscall(__NR_gettid);
+
+ TST_EXP_EXPR(pid != tid,
+ "parent ID (%d) differs from thread[%d] ID (%d)",
+ pid, i, tid);
+
+ return (void *)tst_syscall(__NR_gettid);
+}
+
+static void run(void)
+{
+ pthread_t thread;
+ int error = 0;
+
+ for (int i = 0; i < THREADS_NUM; i++) {
+ SAFE_PTHREAD_CREATE(&thread, NULL, threaded, &i);
+ SAFE_PTHREAD_JOIN(thread, (void **)&tids[i]);
+ }
+
+ for (int i = 0; i < THREADS_NUM; i++) {
+ for (int j = 0; j < THREADS_NUM; j++) {
+ if (i == j)
+ continue;
+
+ if (tids[i] == tids[j]) {
+ tst_res(TINFO, "thread[%d] and thread[%d] have the same ID", i, j);
+ error = 1;
+ goto end;
+ }
+ }
+ }
+
+end:
+ if (error)
+ tst_res(TFAIL, "Some threads have the same TID");
+ else
+ tst_res(TPASS, "All threads have a different TID");
+}
+
+static struct tst_test test = {
+ .test_all = run,
+};
--
2.35.3
--
Mailing list info: https://lists.linux.it/listinfo/ltp
^ permalink raw reply related [flat|nested] 5+ messages in thread