Mercurial > hg > graal-jvmci-8
annotate agent/src/share/classes/sun/jvm/hotspot/types/basic/BasicType.java @ 113:ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
author | coleenp |
---|---|
date | Sun, 13 Apr 2008 17:43:42 -0400 |
parents | a61af66fc99e |
children | d1605aabd0a1 |
rev | line source |
---|---|
0 | 1 /* |
2 * Copyright 2000-2005 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 * | |
23 */ | |
24 | |
25 package sun.jvm.hotspot.types.basic; | |
26 | |
27 import java.util.*; | |
28 import sun.jvm.hotspot.debugger.*; | |
29 import sun.jvm.hotspot.types.*; | |
30 import sun.jvm.hotspot.utilities.*; | |
31 | |
32 /** <P> This is a basic implementation of the Type interface which | |
33 should be complete enough to be portable across platforms. The | |
34 only issue will be the construction of these objects and their | |
35 components from the platform-specific debugging information; see | |
36 BasicTypeDataBase. </P> | |
37 | |
38 <P> There are two types of clients of this class. The first is | |
39 that which builds the TypeDatabase. This kind of client uses the | |
40 additional public methods beyond those in the Type interface to | |
41 properly configure the BasicType objects. The second is the | |
42 consumer of these types; this kind of client should deal only with | |
43 the Type interfaces. </P> */ | |
44 | |
45 public class BasicType implements Type { | |
46 protected BasicTypeDataBase db; | |
47 | |
48 private String name; | |
49 private long size; | |
50 private boolean isJavaPrimitiveType; | |
51 private boolean isOopType; | |
52 // These are only the fields defined in this class, not any of this | |
53 // class's superclasses. | |
54 private Map nameToFieldMap = new HashMap(); | |
55 private List fieldList = new LinkedList(); | |
56 // Superclass, or null if none. Primitive types do not have any | |
57 // inheritance relationship. | |
58 private Type superclass; | |
59 | |
60 /** superclass may be null */ | |
61 public BasicType(BasicTypeDataBase db, String name, Type superclass) { | |
62 if (name == null) { | |
63 throw new IllegalArgumentException("name may not be null"); | |
64 } | |
65 this.db = db; | |
66 this.name = name; | |
67 this.superclass = superclass; | |
68 } | |
69 | |
70 /** Equivalent to BasicType(db, name, null) */ | |
71 public BasicType(BasicTypeDataBase db, String name) { | |
72 this(db, name, null); | |
73 } | |
74 | |
75 public boolean equals(Object obj) { | |
76 if (obj == null) { | |
77 return false; | |
78 } | |
79 | |
80 if (!(obj instanceof BasicType)) { | |
81 return false; | |
82 } | |
83 | |
84 BasicType arg = (BasicType) obj; | |
85 | |
86 if (!name.equals(arg.name)) { | |
87 return false; | |
88 } | |
89 | |
90 return true; | |
91 } | |
92 | |
93 public int hashCode() { | |
94 return name.hashCode(); | |
95 } | |
96 | |
97 public String toString() { | |
98 return name; | |
99 } | |
100 | |
101 public String getName() { | |
102 return name; | |
103 } | |
104 | |
105 /** This should only be called at most once, and only by the builder | |
106 of the type database */ | |
107 public void setSuperclass(Type superclass) { | |
108 this.superclass = superclass; | |
109 } | |
110 | |
111 public Type getSuperclass() { | |
112 return superclass; | |
113 } | |
114 | |
115 /** This should only be called at most once, and only by the builder | |
116 of the type database */ | |
117 public void setSize(long sizeInBytes) { | |
118 this.size = sizeInBytes; | |
119 } | |
120 | |
121 public long getSize() { | |
122 return size; | |
123 } | |
124 | |
125 /** Overridden by BasicCIntegerType */ | |
126 public boolean isCIntegerType() { | |
127 return false; | |
128 } | |
129 | |
130 public boolean isCStringType() { | |
131 if (isPointerType()) { | |
132 Type target = ((PointerType)this).getTargetType(); | |
133 return target.isCIntegerType() && | |
134 target.getName().equals("const char"); | |
135 } else { | |
136 return false; | |
137 } | |
138 } | |
139 | |
140 public boolean isJavaPrimitiveType() { | |
141 return isJavaPrimitiveType; | |
142 } | |
143 | |
144 /** This should only be called at most once, and only by the builder | |
145 of the type database */ | |
146 public void setIsJavaPrimitiveType(boolean isJavaPrimitiveType) { | |
147 this.isJavaPrimitiveType = isJavaPrimitiveType; | |
148 } | |
149 | |
150 public boolean isOopType() { | |
151 return isOopType; | |
152 } | |
153 | |
154 /** Overridden by BasicPointerType */ | |
155 public boolean isPointerType() { | |
156 return false; | |
157 } | |
158 | |
159 /** This should only be called at most once, and only by the builder | |
160 of the type database */ | |
161 public void setIsOopType(boolean isOopType) { | |
162 this.isOopType = isOopType; | |
163 } | |
164 | |
165 public Field getField(String fieldName, boolean searchSuperclassFields, | |
166 boolean throwExceptionIfNotFound) { | |
167 Field field = null; | |
168 if (nameToFieldMap != null) { | |
169 field = (Field) nameToFieldMap.get(fieldName); | |
170 | |
171 if (field != null) { | |
172 return field; | |
173 } | |
174 } | |
175 | |
176 if (searchSuperclassFields) { | |
177 if (superclass != null) { | |
178 field = superclass.getField(fieldName, searchSuperclassFields, false); | |
179 } | |
180 } | |
181 | |
182 if (field == null && throwExceptionIfNotFound) { | |
183 throw new RuntimeException("field \"" + fieldName + "\" not found in type " + name); | |
184 } | |
185 | |
186 return field; | |
187 } | |
188 | |
189 public Field getField(String fieldName, boolean searchSuperclassFields) { | |
190 return getField(fieldName, searchSuperclassFields, true); | |
191 } | |
192 | |
193 public Field getField(String fieldName) { | |
194 return getField(fieldName, true); | |
195 } | |
196 | |
197 public Field getField(String fieldName, Type declaredType, | |
198 boolean searchSuperclassFields) throws WrongTypeException { | |
199 Field res = getField(fieldName, searchSuperclassFields); | |
200 if (res == null) { | |
201 return null; | |
202 } | |
203 if (!res.getType().equals(declaredType)) { | |
204 throw new WrongTypeException("field \"" + fieldName + "\" in type " + name + | |
205 " is not of type " + declaredType + | |
206 ", but instead of type " + res.getType()); | |
207 } | |
208 return res; | |
209 } | |
210 | |
211 public Field getField(String fieldName, Type declaredType) throws WrongTypeException { | |
212 return getField(fieldName, declaredType, false); | |
213 } | |
214 | |
215 /** The returned iterator's "remove" method must not be called */ | |
216 public Iterator getFields() { | |
217 return new ConstIterator(fieldList.iterator()); | |
218 } | |
219 | |
220 //-------------------------------------------------------------------------------- | |
221 // Specialized field type accessors | |
222 // | |
223 | |
224 public JBooleanField getJBooleanField(String fieldName) throws WrongTypeException { | |
225 return (JBooleanField) getField(fieldName, db.getJBooleanType()); | |
226 } | |
227 | |
228 public JByteField getJByteField(String fieldName) throws WrongTypeException { | |
229 return (JByteField) getField(fieldName, db.getJByteType()); | |
230 } | |
231 | |
232 public JCharField getJCharField(String fieldName) throws WrongTypeException { | |
233 return (JCharField) getField(fieldName, db.getJCharType()); | |
234 } | |
235 | |
236 public JDoubleField getJDoubleField(String fieldName) throws WrongTypeException { | |
237 return (JDoubleField) getField(fieldName, db.getJDoubleType()); | |
238 } | |
239 | |
240 public JFloatField getJFloatField(String fieldName) throws WrongTypeException { | |
241 return (JFloatField) getField(fieldName, db.getJFloatType()); | |
242 } | |
243 | |
244 public JIntField getJIntField(String fieldName) throws WrongTypeException { | |
245 return (JIntField) getField(fieldName, db.getJIntType()); | |
246 } | |
247 | |
248 public JLongField getJLongField(String fieldName) throws WrongTypeException { | |
249 return (JLongField) getField(fieldName, db.getJLongType()); | |
250 } | |
251 | |
252 public JShortField getJShortField(String fieldName) throws WrongTypeException { | |
253 return (JShortField) getField(fieldName, db.getJShortType()); | |
254 } | |
255 | |
256 public CIntegerField getCIntegerField(String fieldName) throws WrongTypeException { | |
257 Field field = getField(fieldName); | |
258 if (!(field.getType() instanceof CIntegerType)) { | |
259 throw new WrongTypeException("field \"" + fieldName + "\" in type " + name + | |
260 " is not of C integer type, but instead of type " + | |
261 field.getType()); | |
262 } | |
263 return (CIntegerField) field; | |
264 } | |
265 | |
266 public OopField getOopField(String fieldName) throws WrongTypeException { | |
267 Field field = getField(fieldName); | |
268 if (!field.getType().isOopType()) { | |
269 throw new WrongTypeException("field \"" + fieldName + "\" in type " + name + | |
270 " is not of oop type, but instead of type " + | |
271 field.getType()); | |
272 } | |
273 return (OopField) field; | |
274 } | |
275 | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
276 public NarrowOopField getNarrowOopField(String fieldName) throws WrongTypeException { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
277 return (NarrowOopField) new BasicNarrowOopField(getOopField(fieldName)); |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
278 } |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
279 |
0 | 280 public AddressField getAddressField(String fieldName) { |
281 // This type can not be inferred (for now), so provide a wrapper | |
282 Field field = getField(fieldName); | |
283 if (field == null) { | |
284 return null; | |
285 } | |
286 return new BasicAddressFieldWrapper(field); | |
287 } | |
288 | |
289 /** This method should only be used by the builder of the | |
290 TypeDataBase. Throws a RuntimeException if a field with this | |
291 name was already present in this class. */ | |
292 public void addField(Field field) { | |
293 if (nameToFieldMap.get(field.getName()) != null) { | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
294 throw new RuntimeException("field of name \"" + field.getName() + "\" already present in type " + this); |
0 | 295 } |
296 | |
297 nameToFieldMap.put(field.getName(), field); | |
298 fieldList.add(field); | |
299 } | |
300 | |
301 /** This method should only be used by the builder of the | |
302 TypeDataBase. Throws a RuntimeException if a field with this | |
303 name was not present in this class. */ | |
304 public void removeField(Field field) { | |
305 if (nameToFieldMap.remove(field.getName()) == null) { | |
306 throw new RuntimeException("field of name \"" + field.getName() + "\" was not present"); | |
307 } | |
308 fieldList.remove(field); | |
309 } | |
310 } |