1 /*
   2  * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 package sun.hotspot.code;
  26 
  27 import java.lang.reflect.Executable;
  28 import sun.hotspot.WhiteBox;
  29 
  30 public class NMethod {
  31   private static final WhiteBox wb = WhiteBox.getWhiteBox();
  32   public static NMethod get(Executable method, boolean isOsr) {
  33     Object[] obj = wb.getNMethod(method, isOsr);
  34     return obj == null ? null : new NMethod(obj);
  35   }
  36   private NMethod(Object[] obj) {
  37     assert obj.length == 3;
  38     comp_level = (Integer) obj[0];
  39     insts = (byte[]) obj[1];
  40     compile_id = (Integer) obj[2];
  41   }
  42   public byte[] insts;
  43   public int comp_level;
  44   public int compile_id;
  45 
  46   @Override
  47   public String toString() {
  48     return "NMethod{" +
  49         "insts=" + insts +
  50         ", comp_level=" + comp_level +
  51         ", compile_id=" + compile_id +
  52         '}';
  53   }
  54 }