CodeBlob.java revision 1265:c82ea5393dda 
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
25package sun.hotspot.code;
26
27import sun.hotspot.WhiteBox;
28
29public 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}
69