barriers: builtin: Check for GCC-ism

__atomic_thread_fence() is GCC-ism. When supported by the compiler (C11), use atomic_thread_fence() instead. Signed-off-by: Carlo Caione <[email protected]>
thedjnK · May 24, 2023 · b87534a · b87534a
1 parent 6f3a13d
commit b87534a
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/include/zephyr/sys/barrier_builtin.h b/include/zephyr/sys/barrier_builtin.h
@@ -19,12 +19,22 @@ extern "C" {
 
 static ALWAYS_INLINE void z_barrier_dmem_fence_full(void)
 {
+#if defined(__GNUC__)
+	/* GCC-ism */
 	__atomic_thread_fence(__ATOMIC_SEQ_CST);
+#else
+	atomic_thread_fence(memory_order_seq_cst);
+#endif
 }
 
 static ALWAYS_INLINE void z_barrier_dsync_fence_full(void)
 {
+#if defined(__GNUC__)
+	/* GCC-ism */
 	__atomic_thread_fence(__ATOMIC_SEQ_CST);
+#else
+	atomic_thread_fence(memory_order_seq_cst);
+#endif
 }
 
 static ALWAYS_INLINE void z_barrier_isync_fence_full(void)