x86: Move CET infrastructure to x86_64

The CET is only supported for x86_64 and there is no plan to add
kernel support for i386.  Move the Makefile rules and files from the
generic x86 folder to x86_64 one.

Checked on x86_64-linux-gnu and i686-linux-gnu.

1 files changed, 36 insertions, 0 deletions

diff --git a/sysdeps/x86_64/tst-cet-legacy-mod-5c.c b/sysdeps/x86_64/tst-cet-legacy-mod-5c.c
new file mode 100644
index 0000000000..6acb36ba8d
--- /dev/null
+++ b/sysdeps/x86_64/tst-cet-legacy-mod-5c.c
@@ -0,0 +1,36 @@
+/* Check compatibility of CET-enabled executable with dlopened legacy
+   shared object.
+   Copyright (C) 2019-2024 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 <stdlib.h>
+
+static int called = 0;
+
+static void
+__attribute__ ((constructor))
+init (void)
+{
+  called = 1;
+}
+
+void
+foo (void)
+{
+  if (!called)
+    abort ();
+}