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 package sun.hotspot.code;
25 
26 import sun.hotspot.WhiteBox;
27 
28 public class CodeBlob {
29   private static final WhiteBox WB = WhiteBox.getWhiteBox();
getCodeBlobs(BlobType type)30   public static CodeBlob[] getCodeBlobs(BlobType type) {
31     Object[] obj = WB.getCodeHeapEntries(type.id);
32     if (obj == null) {
33       return null;
34     }
35     CodeBlob[] result = new CodeBlob[obj.length];
36     for (int i = 0, n = result.length; i < n; ++i) {
37       result[i] = new CodeBlob((Object[]) obj[i]);
38     }
39     return result;
40   }
getCodeBlob(long addr)41   public static CodeBlob getCodeBlob(long addr) {
42     Object[] obj = WB.getCodeBlob(addr);
43     if (obj == null) {
44       return null;
45     }
46     return new CodeBlob(obj);
47   }
CodeBlob(Object[] obj)48   protected CodeBlob(Object[] obj) {
49     assert obj.length == 4;
50     name = (String) obj[0];
51     size = (Integer) obj[1];
52     int blob_type_index = (Integer) obj[2];
53     if (blob_type_index == -1) { // AOT
54       code_blob_type = null;
55     } else {
56       code_blob_type = BlobType.values()[blob_type_index];
57       assert code_blob_type.id == (Integer) obj[2];
58     }
59     address = (Long) obj[3];
60   }
61   public final String name;
62   public final int size;
63   public final BlobType code_blob_type;
64   public final long address;
65   @Override
toString()66   public String toString() {
67     return "CodeBlob{"
68         + "name=" + name
69         + ", size=" + size
70         + ", code_blob_type=" + code_blob_type
71         + ", address=" + address
72         + '}';
73   }
74 }
75