--- old/agent/src/share/classes/sun/jvm/hotspot/code/PCDesc.java	Mon Oct 19 12:10:31 2009
+++ new/agent/src/share/classes/sun/jvm/hotspot/code/PCDesc.java	Mon Oct 19 12:10:31 2009
@@ -36,6 +36,7 @@
 public class PCDesc extends VMObject {
   private static CIntegerField pcOffsetField;
   private static CIntegerField scopeDecodeOffsetField;
+  private static CIntegerField objDecodeOffsetField;
   private static CIntegerField pcFlagsField;
 
   static {
@@ -51,6 +52,7 @@
 
     pcOffsetField          = type.getCIntegerField("_pc_offset");
     scopeDecodeOffsetField = type.getCIntegerField("_scope_decode_offset");
+    objDecodeOffsetField   = type.getCIntegerField("_obj_decode_offset");
     pcFlagsField           = type.getCIntegerField("_flags");
   }
 
@@ -68,6 +70,10 @@
     return ((int) scopeDecodeOffsetField.getValue(addr));
   }
 
+  public int getObjDecodeOffset() {
+    return ((int) objDecodeOffsetField.getValue(addr));
+  }
+
   public Address getRealPC(NMethod code) {
     return code.instructionsBegin().addOffsetTo(getPCOffset());
   }