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+/*
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Copyright (c) 2018 Arm Limited. and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef included_clib_atomics_h
+#define included_clib_atomics_h
+
+/* Legacy __sync builtins */
+
+/* Full Barrier */
+#define clib_atomic_fetch_add(a, b) __sync_fetch_and_add(a, b)
+#define clib_atomic_fetch_sub(a, b) __sync_fetch_and_sub(a, b)
+#define clib_atomic_fetch_and(a, b) __sync_fetch_and_and(a, b)
+#define clib_atomic_fetch_xor(a, b) __sync_fetch_and_xor(a, b)
+#define clib_atomic_fetch_or(a, b) __sync_fetch_and_or(a, b)
+#define clib_atomic_fetch_nand(a, b) __sync_fetch_nand(a, b)
+
+#define clib_atomic_add_fetch(a, b) __sync_add_and_fetch(a, b)
+#define clib_atomic_sub_fetch(a, b) __sync_sub_and_fetch(a, b)
+#define clib_atomic_and_fetch(a, b) __sync_and_and_fetch(a, b)
+#define clib_atomic_xor_fetch(a, b) __sync_xor_and_fetch(a, b)
+#define clib_atomic_or_fetch(a, b) __sync_or_and_fetch(a, b)
+#define clib_atomic_nand_fetch(a, b) __sync_nand_and_fetch(a, b)
+
+#define clib_atomic_cmp_and_swap(addr,old,new) __sync_val_compare_and_swap(addr, old, new)
+#define clib_atomic_bool_cmp_and_swap(addr,old,new) __sync_bool_compare_and_swap(addr, old, new)
+
+/*Accquire Barrier*/
+#define clib_atomic_test_and_set(a) __sync_lock_test_and_set(a, 1)
+/*Release Barrier*/
+#define clib_atomic_release(a) __sync_lock_release(a)
+
+#endif /* included_clib_atomics_h */