1 files changed, 62 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-signal8.c b/sysdeps/pthread/tst-signal8.c
new file mode 100644
index 0000000000..9da7e5ef07
--- /dev/null
+++ b/sysdeps/pthread/tst-signal8.c
@@ -0,0 +1,62 @@
+/* Tests for sigisemptyset and pthread_sigmask.
+   Copyright (C) 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 <signal.h>
+
+#include <support/check.h>
+#include <support/xthread.h>
+
+static void *
+tf (void *arg)
+{
+  {
+    sigset_t set;
+    sigemptyset (&set);
+    TEST_COMPARE (pthread_sigmask (SIG_BLOCK, 0, &set), 0);
+    TEST_COMPARE (sigisemptyset (&set), 1);
+  }
+
+  {
+    sigset_t set;
+    sigfillset (&set);
+    TEST_COMPARE (pthread_sigmask (SIG_BLOCK, 0, &set), 0);
+    TEST_COMPARE (sigisemptyset (&set), 1);
+  }
+
+  return NULL;
+}
+
+static int
+do_test (void)
+{
+  /* Ensure current SIG_BLOCK mask empty.  */
+  {
+    sigset_t set;
+    sigemptyset (&set);
+    TEST_COMPARE (sigprocmask (SIG_BLOCK, &set, 0), 0);
+  }
+
+  {
+    pthread_t thr = xpthread_create (NULL, tf, NULL);
+    xpthread_join (thr);
+  }
+
+  return 0;
+}
+
+#include <support/test-driver.c>