From: Matthew Ma <mat...@gm...> - 2014-06-26 15:30:51
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Hi, I want to write information into Object Header's Misc field when an object is created: modify where RVM create new object (and its hearde) eg. From the user annotated program, I want to write group information into the object header (ast and bst all refers to Tree object but each would have different Group number written into the object header) 1 @create(“Group1”) //GroupInformation 2 public void foo(){ 3 ast = new Tree(); 4 } 5 @create(“Group2”) ////GroupInformation 6 public void foo(){ 7 bst = new Tree(); 8 } I looked into the option of changing the RVM to handle this mechanism when object created, but from RVMClass, I could’t find direct connection to how to access MiscHeader class. In ObjectModel.java, I saw MiscHeader is invoked with initializeHeader(..) at allocateScalar. is it where I can write GroupInformation into the misc header field (by using RVMClass to get current running RVMMethod, and use getAnnotation() to obtain the annotated Group Information)? Thanks, Matthew |