Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/PerfDataPrologue.java @ 13705:ac5b0f31f7a2
Truffle API-change: FrameDescriptors are now stored in the RootNode in a final field instead of the CallTarget.
author | Christian Humer <christian.humer@gmail.com> |
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date | Fri, 17 Jan 2014 17:06:08 +0100 |
parents | c18cbe5936b8 |
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0 | 1 /* |
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2 * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved. |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
25 package sun.jvm.hotspot.runtime; | |
26 | |
27 import java.util.*; | |
28 import sun.jvm.hotspot.debugger.*; | |
29 import sun.jvm.hotspot.oops.*; | |
30 import sun.jvm.hotspot.types.*; | |
31 | |
32 public class PerfDataPrologue extends VMObject { | |
33 private static JIntField magicField; | |
34 private static JByteField byteOrderField; | |
35 private static JByteField majorVersionField; | |
36 private static JByteField minorVersionField; | |
37 private static JByteField accessibleField; | |
38 private static JIntField usedField; | |
39 private static JIntField overflowField; | |
40 private static JLongField modTimeStampField; | |
41 private static JIntField entryOffsetField; | |
42 private static JIntField numEntriesField; | |
43 | |
44 static { | |
45 VM.registerVMInitializedObserver(new Observer() { | |
46 public void update(Observable o, Object data) { | |
47 initialize(VM.getVM().getTypeDataBase()); | |
48 } | |
49 }); | |
50 } | |
51 | |
52 private static synchronized void initialize(TypeDataBase db) { | |
53 Type type = db.lookupType("PerfDataPrologue"); | |
54 magicField = type.getJIntField("magic"); | |
55 byteOrderField = type.getJByteField("byte_order"); | |
56 majorVersionField = type.getJByteField("major_version"); | |
57 minorVersionField = type.getJByteField("minor_version"); | |
58 accessibleField = type.getJByteField("accessible"); | |
59 usedField = type.getJIntField("used"); | |
60 overflowField = type.getJIntField("overflow"); | |
61 modTimeStampField = type.getJLongField("mod_time_stamp"); | |
62 entryOffsetField = type.getJIntField("entry_offset"); | |
63 numEntriesField = type.getJIntField("num_entries"); | |
64 } | |
65 | |
66 public PerfDataPrologue(Address addr) { | |
67 super(addr); | |
68 } | |
69 | |
70 // Accessors | |
71 public int magic() { | |
72 return (int) magicField.getValue(addr); | |
73 } | |
74 | |
75 public byte byteOrder() { | |
76 return (byte) byteOrderField.getValue(addr); | |
77 } | |
78 | |
79 public byte majorVersion() { | |
80 return (byte) majorVersionField.getValue(addr); | |
81 } | |
82 | |
83 public boolean accessible() { | |
84 return ((byte) accessibleField.getValue(addr)) != (byte)0; | |
85 } | |
86 | |
87 public int used() { | |
88 return (int) usedField.getValue(addr); | |
89 } | |
90 | |
91 public int overflow() { | |
92 return (int) overflowField.getValue(addr); | |
93 } | |
94 | |
95 public long modTimeStamp() { | |
96 return (long) modTimeStampField.getValue(addr); | |
97 } | |
98 | |
99 public int entryOffset() { | |
100 return (int) entryOffsetField.getValue(addr); | |
101 } | |
102 | |
103 public int numEntries() { | |
104 return (int) numEntriesField.getValue(addr); | |
105 } | |
106 } |