--- old/src/os_cpu/linux_aarch64/vm/atomic_linux_aarch64.hpp	2017-07-20 11:38:54.240983089 +0200
+++ new/src/os_cpu/linux_aarch64/vm/atomic_linux_aarch64.hpp	2017-07-20 11:38:54.100983094 +0200
@@ -56,7 +56,7 @@
 
 template <>
 inline int64_t Atomic::specialized_xchg<int64_t>(int64_t exchange_value, volatile int64_t* dest) {
-  int64_t res = __sync_lock_test_and_set (dest, exchange_value);
+  intptr_t res = reinterpret_cast<intptr_t>(__sync_lock_test_and_set(reinterpret_cast<char* volatile*>(dest), reinterpret_cast<char*>(exchange_value)));
   FULL_MEM_BARRIER;
   return res;
 }