diff --git a/COPYING.LIBGLOSS b/COPYING.LIBGLOSS
index badd5b9f9..f9d7f2067 100644
--- a/COPYING.LIBGLOSS
+++ b/COPYING.LIBGLOSS
@@ -483,3 +483,17 @@ http://www.opensource.org/licenses.
 Copyright (C) 2020 Embecosm Limited
 SPDX-License-Identifier: BSD-2-Clause
 
+(25) - Synopsys Inc. - (arc-* targets)
+
+Copyright (c) 2024 Synopsys Inc.
+
+The authors hereby grant permission to use, copy, modify, distribute,
+and license this software and its documentation for any purpose, provided
+that existing copyright notices are retained in all copies and that this
+notice is included verbatim in any distributions. No written agreement,
+license, or royalty fee is required for any of the authorized uses.
+Modifications to this software may be copyrighted by their authors
+and need not follow the licensing terms described here, provided that
+the new terms are clearly indicated on the first page of each file where
+they apply.
+