Index: arch/amd64/include/context.h
===================================================================
--- arch/amd64/include/context.h	(revision 22f776926d191e0d2eb1be9adfc28070c7ce11d4)
+++ arch/amd64/include/context.h	(revision 2a99fa8542b11dc1ddaa614e54b07e6b3a03a094)
@@ -45,6 +45,6 @@
  */
 struct context {
-    __u64 sp;
-    __u64 pc;
+    __address sp;
+    __address pc;
     
     __u64 rbx;