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comparison graal/com.oracle.jvmci.hotspot/src/com/oracle/jvmci/hotspot/HotSpotInstalledCode.java @ 21551:5324104ac4f3

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moved com.oracle.graal.hotspot.jvmci classes to com.oracle.jvmci.hotspot module (JBS:GRAAL-53)
author Doug Simon <doug.simon@oracle.com>
date Tue, 26 May 2015 17:13:37 +0200
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21550:f48a6cea31eb 21551:5324104ac4f3
1 /*
2 * Copyright (c) 2011, 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 package com.oracle.jvmci.hotspot;
24
25 import static com.oracle.jvmci.common.UnsafeAccess.*;
26 import sun.misc.*;
27
28 import com.oracle.graal.api.code.*;
29
30 import edu.umd.cs.findbugs.annotations.*;
31
32 /**
33 * Implementation of {@link InstalledCode} for HotSpot.
34 */
35 public abstract class HotSpotInstalledCode extends InstalledCode {
36
37 /**
38 * Total size of the code blob.
39 */
40 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int size;
41
42 /**
43 * Start address of the code.
44 */
45 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private long codeStart;
46
47 /**
48 * Size of the code.
49 */
50 @SuppressFBWarnings(value = "UWF_UNWRITTEN_FIELD", justification = "field is set by the native part") private int codeSize;
51
52 public HotSpotInstalledCode(String name) {
53 super(name);
54 }
55
56 /**
57 * @return the total size of this code blob
58 */
59 public int getSize() {
60 return size;
61 }
62
63 /**
64 * @return a copy of this code blob if it is {@linkplain #isValid() valid}, null otherwise.
65 */
66 public byte[] getBlob() {
67 if (!isValid()) {
68 return null;
69 }
70 byte[] blob = new byte[size];
71 unsafe.copyMemory(null, getAddress(), blob, Unsafe.ARRAY_BYTE_BASE_OFFSET, size);
72 return blob;
73 }
74
75 @Override
76 public abstract String toString();
77
78 @Override
79 public long getStart() {
80 return codeStart;
81 }
82
83 @Override
84 public long getCodeSize() {
85 return codeSize;
86 }
87
88 @Override
89 public byte[] getCode() {
90 if (!isValid()) {
91 return null;
92 }
93 byte[] code = new byte[codeSize];
94 unsafe.copyMemory(null, codeStart, code, Unsafe.ARRAY_BYTE_BASE_OFFSET, codeSize);
95 return code;
96 }
97 }