Mercurial > hg > graal-compiler
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/Arguments.java @ 2426:1d1603768966
7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: ohair
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date | Tue, 05 Apr 2011 14:12:31 -0700 |
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0 | 1 /* |
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2 * Copyright (c) 2004, 2006, Oracle and/or its affiliates. All rights reserved. |
0 | 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 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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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 | |
29 import sun.jvm.hotspot.debugger.*; | |
30 import sun.jvm.hotspot.runtime.*; | |
31 import sun.jvm.hotspot.types.*; | |
32 import sun.jvm.hotspot.utilities.*; | |
33 | |
34 /** This class represent VM's Arguments class -- command line args, flags etc.*/ | |
35 public class Arguments { | |
36 static { | |
37 VM.registerVMInitializedObserver(new Observer() { | |
38 public void update(Observable o, Object data) { | |
39 initialize(VM.getVM().getTypeDataBase()); | |
40 } | |
41 }); | |
42 } | |
43 | |
44 public static String getJVMFlags() { | |
45 return buildString(jvmFlagsField, jvmFlagsCount); | |
46 } | |
47 | |
48 public static String getJVMArgs() { | |
49 return buildString(jvmArgsField, jvmArgsCount); | |
50 } | |
51 | |
52 public static String getJavaCommand() { | |
53 return getString(javaCommandField); | |
54 } | |
55 | |
56 // Internals only below this point | |
57 | |
58 // Fields | |
59 private static AddressField jvmFlagsField; | |
60 private static AddressField jvmArgsField; | |
61 private static AddressField javaCommandField; | |
62 private static long jvmFlagsCount; | |
63 private static long jvmArgsCount; | |
64 | |
65 private static synchronized void initialize(TypeDataBase db) { | |
66 Type argumentsType = db.lookupType("Arguments"); | |
67 jvmFlagsField = argumentsType.getAddressField("_jvm_flags_array"); | |
68 jvmArgsField = argumentsType.getAddressField("_jvm_args_array"); | |
69 javaCommandField = argumentsType.getAddressField("_java_command"); | |
70 | |
71 jvmArgsCount = argumentsType.getCIntegerField("_num_jvm_args").getValue(); | |
72 jvmFlagsCount = argumentsType.getCIntegerField("_num_jvm_flags").getValue(); | |
73 } | |
74 | |
75 private static String buildString(AddressField arrayField, long count) { | |
76 StringBuilder sb = new StringBuilder(); | |
77 if (count > 0) { | |
78 sb.append(getStringAt(arrayField, 0)); | |
79 for (long i = 1; i < count; i++) { | |
80 sb.append(" "); | |
81 sb.append(getStringAt(arrayField, i)); | |
82 } | |
83 } | |
84 return sb.toString(); | |
85 } | |
86 | |
87 private static String getString(AddressField field) { | |
88 Address addr = field.getAddress(); | |
89 return CStringUtilities.getString(addr); | |
90 } | |
91 | |
92 private static String getStringAt(AddressField field, long index) { | |
93 Address addr = field.getAddress(); | |
94 return CStringUtilities.getString(addr.getAddressAt(index * VM.getVM().getAddressSize())); | |
95 } | |
96 } |