libio: Add tst-vtables, tst-vtables-interposed

1 files changed, 36 insertions, 0 deletions

diff --git a/libio/tst-vtables-interposed.c b/libio/tst-vtables-interposed.c
new file mode 100644
index 0000000000..aaa5a84e0a
--- /dev/null
+++ b/libio/tst-vtables-interposed.c
@@ -0,0 +1,36 @@
+/* Test for libio vtables and their validation.  Enabled through interposition.
+   Copyright (C) 2018 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
+   <http://www.gnu.org/licenses/>.  */
+
+#include "tst-vtables-common.c"
+
+/* Provide an interposed definition of the standard file handles with
+   our own vtable.  stdout/stdin/stderr will not work as a result, but
+   a succesful test does not print anything, so this is fine.  */
+#define _IO_file_jumps jumps
+#include "stdfiles.c"
+
+static int
+do_test (void)
+{
+  return run_tests (false);
+}
+
+/* Calling setvbuf in the test driver is not supported with our
+   interposed file handles.  */
+#define TEST_NO_SETVBUF
+#include <support/test-driver.c>