kernel: add c++ support

include/socks/locks.h

@@ -4,6 +4,10 @@
 #include <socks/compiler.h>
 #include <socks/machine/hwlock.h>
 
+#ifdef __cplusplus
+extern "C" {
+#endif
+
 typedef __aligned(8) ml_hwlock_t spin_lock_t;
 
 #define SPIN_LOCK_INIT ML_HWLOCK_INIT
@@ -11,4 +15,8 @@ typedef __aligned(8) ml_hwlock_t spin_lock_t;
 #define spin_lock_irqsave(lck, flags) ml_hwlock_lock_irqsave(lck, flags);
 #define spin_unlock_irqrestore(lck, flags) ml_hwlock_unlock_irqrestore(lck, flags);
 
+#ifdef __cplusplus
+}
+#endif
+
 #endif