diff --git a/src/os_cpu/linux_aarch64/vm/os_linux_aarch64.cpp b/src/os_cpu/linux_aarch64/vm/os_linux_aarch64.cpp
--- a/src/os_cpu/linux_aarch64/vm/os_linux_aarch64.cpp
+++ b/src/os_cpu/linux_aarch64/vm/os_linux_aarch64.cpp
@@ -698,6 +698,7 @@
 
 extern "C" {
   int SpinPause() {
+    return 0;
   }
 
   void _Copy_conjoint_jshorts_atomic(jshort* from, jshort* to, size_t count) {
diff --git a/src/os_cpu/linux_zero/vm/os_linux_zero.cpp b/src/os_cpu/linux_zero/vm/os_linux_zero.cpp
--- a/src/os_cpu/linux_zero/vm/os_linux_zero.cpp
+++ b/src/os_cpu/linux_zero/vm/os_linux_zero.cpp
@@ -408,6 +408,7 @@
 
 extern "C" {
   int SpinPause() {
+    return 0;
   }