1 files changed, 69 insertions, 0 deletions
diff --git a/sysdeps/pthread/tst-mutex11.c b/sysdeps/pthread/tst-mutex11.c
new file mode 100644
index 0000000000..2685f9e8bc
--- /dev/null
+++ b/sysdeps/pthread/tst-mutex11.c
@@ -0,0 +1,69 @@
+/* Test unsupported/bad clocks passed to pthread_mutex_clocklock.
+
+   Copyright (C) 2019-2020 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 <errno.h>
+#include <pthread.h>
+#include <stdio.h>
+#include <time.h>
+#include <unistd.h>
+#include <support/check.h>
+
+static pthread_mutex_t mut = PTHREAD_MUTEX_INITIALIZER;
+
+static void test_bad_clockid (clockid_t clockid)
+{
+  const struct timespec ts = {0,0};
+  TEST_COMPARE (pthread_mutex_clocklock (&mut, clockid, &ts), EINVAL);
+}
+
+#define NOT_A_VALID_CLOCK 123456
+
+static int
+do_test (void)
+{
+  /* These clocks are meaningless to pthread_mutex_clocklock.  */
+#if defined(CLOCK_PROCESS_CPUTIME_ID)
+  test_bad_clockid (CLOCK_PROCESS_CPUTIME_ID);
+#endif
+#if defined(CLOCK_THREAD_CPUTIME_ID)
+  test_bad_clockid (CLOCK_PROCESS_CPUTIME_ID);
+#endif
+
+  /* These clocks might be meaningful, but are currently unsupported by
+     pthread_mutex_clocklock.  */
+#if defined(CLOCK_REALTIME_COARSE)
+  test_bad_clockid (CLOCK_REALTIME_COARSE);
+#endif
+#if defined(CLOCK_MONOTONIC_RAW)
+  test_bad_clockid (CLOCK_MONOTONIC_RAW);
+#endif
+#if defined(CLOCK_MONOTONIC_COARSE)
+  test_bad_clockid (CLOCK_MONOTONIC_COARSE);
+#endif
+#if defined(CLOCK_BOOTTIME)
+  test_bad_clockid (CLOCK_BOOTTIME);
+#endif
+
+  /* This is a completely invalid clock.  */
+  test_bad_clockid (NOT_A_VALID_CLOCK);
+
+  return 0;
+}
+
+#include <support/test-driver.c>