1 /*
2 * Copyright 2001-2005 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
46 private static sun.jvm.hotspot.types.OopField threadGroupKlassField;
47
48 static {
49 VM.registerVMInitializedObserver(new Observer() {
50 public void update(Observable o, Object data) {
51 initialize(VM.getVM().getTypeDataBase());
52 }
53 });
54 }
55
56 private static synchronized void initialize(TypeDataBase db) {
57 Type type = db.lookupType("SystemDictionary");
58
59 dictionaryField = type.getAddressField("_dictionary");
60 sharedDictionaryField = type.getAddressField("_shared_dictionary");
61 placeholdersField = type.getAddressField("_placeholders");
62 loaderConstraintTableField = type.getAddressField("_loader_constraints");
63 javaSystemLoaderField = type.getOopField("_java_system_loader");
64 nofBuckets = db.lookupIntConstant("SystemDictionary::_nof_buckets").intValue();
65
66 objectKlassField = type.getOopField("_object_klass");
67 classLoaderKlassField = type.getOopField("_classloader_klass");
68 stringKlassField = type.getOopField("_string_klass");
69 systemKlassField = type.getOopField("_system_klass");
70 threadKlassField = type.getOopField("_thread_klass");
71 threadGroupKlassField = type.getOopField("_threadGroup_klass");
72 }
73
74 public Dictionary dictionary() {
75 Address tmp = dictionaryField.getValue();
76 return (Dictionary) VMObjectFactory.newObject(Dictionary.class, tmp);
77 }
78
79 public Dictionary sharedDictionary() {
80 Address tmp = sharedDictionaryField.getValue();
81 return (Dictionary) VMObjectFactory.newObject(Dictionary.class, tmp);
82 }
83
84 public PlaceholderTable placeholders() {
85 Address tmp = placeholdersField.getValue();
86 return (PlaceholderTable) VMObjectFactory.newObject(PlaceholderTable.class, tmp);
87 }
88
89 public LoaderConstraintTable constraints() {
90 Address tmp = placeholdersField.getValue();
91 return (LoaderConstraintTable) VMObjectFactory.newObject(LoaderConstraintTable.class, tmp);
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1 /*
2 * Copyright 2001-2008 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
46 private static sun.jvm.hotspot.types.OopField threadGroupKlassField;
47
48 static {
49 VM.registerVMInitializedObserver(new Observer() {
50 public void update(Observable o, Object data) {
51 initialize(VM.getVM().getTypeDataBase());
52 }
53 });
54 }
55
56 private static synchronized void initialize(TypeDataBase db) {
57 Type type = db.lookupType("SystemDictionary");
58
59 dictionaryField = type.getAddressField("_dictionary");
60 sharedDictionaryField = type.getAddressField("_shared_dictionary");
61 placeholdersField = type.getAddressField("_placeholders");
62 loaderConstraintTableField = type.getAddressField("_loader_constraints");
63 javaSystemLoaderField = type.getOopField("_java_system_loader");
64 nofBuckets = db.lookupIntConstant("SystemDictionary::_nof_buckets").intValue();
65
66 objectKlassField = type.getOopField(WK_KLASS("object_klass"));
67 classLoaderKlassField = type.getOopField(WK_KLASS("classloader_klass"));
68 stringKlassField = type.getOopField(WK_KLASS("string_klass"));
69 systemKlassField = type.getOopField(WK_KLASS("system_klass"));
70 threadKlassField = type.getOopField(WK_KLASS("thread_klass"));
71 threadGroupKlassField = type.getOopField(WK_KLASS("threadGroup_klass"));
72 }
73
74 // This WK functions must follow the definitions in systemDictionary.hpp:
75 private static String WK_KLASS(String name) {
76 //#define WK_KLASS(name) _well_known_klasses[SystemDictionary::WK_KLASS_ENUM_NAME(name)]
77 return ("_well_known_klasses[SystemDictionary::"+WK_KLASS_ENUM_NAME(name)+"]");
78 }
79 private static String WK_KLASS_ENUM_NAME(String kname) {
80 //#define WK_KLASS_ENUM_NAME(kname) kname##_knum
81 return (kname+"_knum");
82 }
83
84 public Dictionary dictionary() {
85 Address tmp = dictionaryField.getValue();
86 return (Dictionary) VMObjectFactory.newObject(Dictionary.class, tmp);
87 }
88
89 public Dictionary sharedDictionary() {
90 Address tmp = sharedDictionaryField.getValue();
91 return (Dictionary) VMObjectFactory.newObject(Dictionary.class, tmp);
92 }
93
94 public PlaceholderTable placeholders() {
95 Address tmp = placeholdersField.getValue();
96 return (PlaceholderTable) VMObjectFactory.newObject(PlaceholderTable.class, tmp);
97 }
98
99 public LoaderConstraintTable constraints() {
100 Address tmp = placeholdersField.getValue();
101 return (LoaderConstraintTable) VMObjectFactory.newObject(LoaderConstraintTable.class, tmp);
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