1 files changed, 47 insertions, 0 deletions
diff --git a/stdlib/tst-getrandom2.c b/stdlib/tst-getrandom2.c
new file mode 100644
index 0000000..f085b4b
--- /dev/null
+++ b/stdlib/tst-getrandom2.c
@@ -0,0 +1,47 @@
+/* Tests for the getrandom functions.
+   Copyright (C) 2024 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 <gnu/lib-names.h>
+#include <support/check.h>
+#include <support/xdlfcn.h>
+#include <support/xthread.h>
+#include <sys/random.h>
+
+static __typeof (getrandom) *getrandom_ptr;
+
+static void *
+threadfunc (void *ignored)
+{
+  char buffer;
+  TEST_COMPARE (getrandom_ptr (&buffer, 1, 0), 1);
+  return NULL;
+}
+
+static int
+do_test (void)
+{
+  /* Check if issuing getrandom in the secondary libc.so works when
+     the vDSO might be potentially used.  */
+  void *handle = xdlmopen (LM_ID_NEWLM, LIBC_SO, RTLD_NOW);
+  getrandom_ptr = xdlsym (handle, "getrandom");
+  for (int i = 0; i < 1000; ++i)
+    xpthread_join (xpthread_create (NULL, threadfunc, NULL));
+  return 0;
+}
+
+#include <support/test-driver.c>