1 files changed, 63 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-join7mod.c b/sysdeps/pthread/tst-join7mod.c
new file mode 100644
index 0000000000..934087dcc6
--- /dev/null
+++ b/sysdeps/pthread/tst-join7mod.c
@@ -0,0 +1,63 @@
+/* Verify that TLS access in separate thread in a dlopened library does not
+   deadlock - the module.
+   Copyright (C) 2015-2020 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library 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
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <https://www.gnu.org/licenses/>.  */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include <atomic.h>
+
+static pthread_t th;
+static int running = 1;
+
+static void *
+test_run (void *p)
+{
+  while (atomic_load_relaxed (&running))
+    printf ("Test running\n");
+  printf ("Test finished\n");
+  return NULL;
+}
+
+static void __attribute__ ((constructor))
+do_init (void)
+{
+  int ret = pthread_create (&th, NULL, test_run, NULL);
+
+  if (ret != 0)
+    {
+      printf ("failed to create thread: %s (%d)\n", strerror (ret), ret);
+      exit (1);
+    }
+}
+
+static void __attribute__ ((destructor))
+do_end (void)
+{
+  atomic_store_relaxed (&running, 0);
+  int ret = pthread_join (th, NULL);
+
+  if (ret != 0)
+    {
+      printf ("pthread_join: %s(%d)\n", strerror (ret), ret);
+      exit (1);
+    }
+
+  printf ("Thread joined\n");
+}