Mercurial > hg > truffle
view agent/src/share/classes/sun/jvm/hotspot/utilities/IntArray.java @ 7416:a70c88896791
8004713: Stackoverflowerror thrown when thread stack straddles 0x80000000
Summary: use unsigned comparison when checking for stack overflow
Reviewed-by: kvn, twisti
Contributed-by: paul.nauman@oracle.com
author | kvn |
---|---|
date | Thu, 13 Dec 2012 17:27:55 -0800 |
parents | da91efe96a93 |
children |
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package sun.jvm.hotspot.utilities; import java.util.Observable; import java.util.Observer; import sun.jvm.hotspot.debugger.Address; import sun.jvm.hotspot.runtime.VM; import sun.jvm.hotspot.types.Type; import sun.jvm.hotspot.types.TypeDataBase; import sun.jvm.hotspot.types.WrongTypeException; public class IntArray extends GenericArray { static { VM.registerVMInitializedObserver(new Observer() { public void update(Observable o, Object data) { initialize(VM.getVM().getTypeDataBase()); } }); } private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { elemType = db.lookupType("int"); Type type = db.lookupType("Array<int>"); dataFieldOffset = type.getAddressField("_data").getOffset(); } private static long dataFieldOffset; protected static Type elemType; public IntArray(Address addr) { super(addr, dataFieldOffset); } public int at(int i) { return (int)getIntegerAt(i); } public Type getElemType() { return elemType; } }