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 sun.hotspot.WhiteBox;
  28 
  29 public class CodeBlob {
  30   private static final WhiteBox WB = WhiteBox.getWhiteBox();
  31   public static CodeBlob[] getCodeBlobs(BlobType type) {
  32     Object[] obj = WB.getCodeHeapEntries(type.id);
  33     if (obj == null) {
  34       return null;
  35     }
  36     CodeBlob[] result = new CodeBlob[obj.length];
  37     for (int i = 0, n = result.length; i < n; ++i) {
  38       result[i] = new CodeBlob((Object[]) obj[i]);
  39     }
  40     return result;
  41   }
  42   public static CodeBlob getCodeBlob(long addr) {
  43     Object[] obj = WB.getCodeBlob(addr);
  44     if (obj == null) {
  45       return null;
  46     }
  47     return new CodeBlob(obj);
  48   }
  49   protected CodeBlob(Object[] obj) {
  50     assert obj.length == 3;
  51     name = (String) obj[0];
  52     size = (Integer) obj[1];
  53     code_blob_type = BlobType.values()[(Integer) obj[2]];
  54     assert code_blob_type.id == (Integer) obj[2];
  55   }
  56   public final String name;
  57   public final int size;
  58   public final BlobType code_blob_type;
  59 
  60   @Override
  61   public String toString() {
  62     return "CodeBlob{"
  63         + "name=" + name
  64         + ", size=" + size
  65         + ", code_blob_type=" + code_blob_type
  66         + '}';
  67   }
  68 }