diff --git a/common/Call.cpp b/common/Call.cpp
new file mode 100644
index 0000000..8087b96
--- /dev/null
+++ b/common/Call.cpp
@@ -0,0 +1,23 @@
+#include "common/Call.hpp"
+
+void OsCallDestroy() {
+    // TODO
+}
+
+void OsCallInitialize(const char* threadName) {
+    // TODO
+}
+
+void* OsCallInitializeContext(const char* contextName) {
+    // TODO
+
+    return nullptr;
+}
+
+void OsCallResetContext(void* contextDataPtr) {
+    // TODO
+}
+
+void OsCallSetContext(void* contextDataPtr) {
+    // TODO
+}
diff --git a/common/Call.hpp b/common/Call.hpp
new file mode 100644
index 0000000..53d2ec2
--- /dev/null
+++ b/common/Call.hpp
@@ -0,0 +1,14 @@
+#ifndef COMMON_CALL_HPP
+#define COMMON_CALL_HPP
+
+void OsCallDestroy();
+
+void OsCallInitialize(const char* threadName);
+
+void* OsCallInitializeContext(const char* contextName);
+
+void OsCallResetContext(void* contextDataPtr);
+
+void OsCallSetContext(void* contextDataPtr);
+
+#endif