Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/runtime/Arguments.java @ 1552:c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
Summary: Change all the Sun copyrights to Oracle copyright
Reviewed-by: ohair
| author | trims |
|---|---|
| date | Thu, 27 May 2010 19:08:38 -0700 |
| parents | a61af66fc99e |
| children |
| rev | line source |
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| 0 | 1 /* |
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6941466: Oracle rebranding changes for Hotspot repositories
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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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6941466: Oracle rebranding changes for Hotspot repositories
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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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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c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
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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 } |