src/share/vm/runtime/perfMemory.hpp

@@ -117,10 +117,20 @@
     static char*  _start;
     static char*  _end;
     static char*  _top;
     static size_t _capacity;
     static PerfDataPrologue*  _prologue;
+
+    /* These _saved_* fields are for JSnap.
+     * JSnap uses these values to show PerfDataEntry.
+     */
+    static char*  _saved_start;
+    static char*  _saved_end;
+    static char*  _saved_top;
+    static size_t _saved_capacity;
+    static PerfDataPrologue*  _saved_prologue;
+
     static jint   _initialized;
 
     static void create_memory_region(size_t sizep);
     static void delete_memory_region();