Mercurial > hg > graal-jvmci-8
annotate agent/src/share/classes/sun/jvm/hotspot/oops/Method.java @ 6940:18fb7da42534
8000725: NPG: method_holder() and pool_holder() and pool_holder field should be InstanceKlass
Summary: Change types of above methods and field to InstanceKlass and remove unneeded casts from the source files.
Reviewed-by: dholmes, coleenp, zgu
Contributed-by: harold.seigel@oracle.com
author | coleenp |
---|---|
date | Tue, 06 Nov 2012 15:09:37 -0500 |
parents | da91efe96a93 |
children | bd7a7ce2e264 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 2000, 2012, 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 |
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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.oops; | |
26 | |
27 import java.io.*; | |
28 import java.util.*; | |
29 import sun.jvm.hotspot.code.*; | |
30 import sun.jvm.hotspot.debugger.*; | |
31 import sun.jvm.hotspot.interpreter.*; | |
32 import sun.jvm.hotspot.memory.*; | |
33 import sun.jvm.hotspot.runtime.*; | |
34 import sun.jvm.hotspot.types.*; | |
35 import sun.jvm.hotspot.utilities.*; | |
36 | |
37 // A Method represents a Java method | |
38 | |
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39 public class Method extends Metadata { |
0 | 40 static { |
41 VM.registerVMInitializedObserver(new Observer() { | |
42 public void update(Observable o, Object data) { | |
43 initialize(VM.getVM().getTypeDataBase()); | |
44 } | |
45 }); | |
46 } | |
47 | |
48 private static synchronized void initialize(TypeDataBase db) throws WrongTypeException { | |
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49 Type type = db.lookupType("Method"); |
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50 constMethod = type.getAddressField("_constMethod"); |
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51 methodData = type.getAddressField("_method_data"); |
0 | 52 methodSize = new CIntField(type.getCIntegerField("_method_size"), 0); |
53 maxStack = new CIntField(type.getCIntegerField("_max_stack"), 0); | |
54 maxLocals = new CIntField(type.getCIntegerField("_max_locals"), 0); | |
55 sizeOfParameters = new CIntField(type.getCIntegerField("_size_of_parameters"), 0); | |
56 accessFlags = new CIntField(type.getCIntegerField("_access_flags"), 0); | |
57 code = type.getAddressField("_code"); | |
58 vtableIndex = new CIntField(type.getCIntegerField("_vtable_index"), 0); | |
59 if (!VM.getVM().isCore()) { | |
60 invocationCounter = new CIntField(type.getCIntegerField("_invocation_counter"), 0); | |
3939 | 61 backedgeCounter = new CIntField(type.getCIntegerField("_backedge_counter"), 0); |
0 | 62 } |
63 bytecodeOffset = type.getSize(); | |
64 | |
3939 | 65 interpreterThrowoutCountField = new CIntField(type.getCIntegerField("_interpreter_throwout_count"), 0); |
66 interpreterInvocationCountField = new CIntField(type.getCIntegerField("_interpreter_invocation_count"), 0); | |
67 | |
0 | 68 /* |
69 interpreterEntry = type.getAddressField("_interpreter_entry"); | |
70 fromCompiledCodeEntryPoint = type.getAddressField("_from_compiled_code_entry_point"); | |
71 | |
72 */ | |
73 objectInitializerName = null; | |
74 classInitializerName = null; | |
75 } | |
76 | |
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77 public Method(Address addr) { |
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78 super(addr); |
0 | 79 } |
80 | |
81 public boolean isMethod() { return true; } | |
82 | |
83 // Fields | |
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84 private static AddressField constMethod; |
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85 private static AddressField methodData; |
0 | 86 private static CIntField methodSize; |
87 private static CIntField maxStack; | |
88 private static CIntField maxLocals; | |
89 private static CIntField sizeOfParameters; | |
90 private static CIntField accessFlags; | |
91 private static CIntField vtableIndex; | |
92 private static CIntField invocationCounter; | |
3939 | 93 private static CIntField backedgeCounter; |
0 | 94 private static long bytecodeOffset; |
95 | |
96 private static AddressField code; | |
97 | |
3939 | 98 private static CIntField interpreterThrowoutCountField; |
99 private static CIntField interpreterInvocationCountField; | |
100 | |
0 | 101 // constant method names - <init>, <clinit> |
102 // Initialized lazily to avoid initialization ordering dependencies between Method and SymbolTable | |
103 private static Symbol objectInitializerName; | |
104 private static Symbol classInitializerName; | |
105 private static Symbol objectInitializerName() { | |
106 if (objectInitializerName == null) { | |
107 objectInitializerName = VM.getVM().getSymbolTable().probe("<init>"); | |
108 } | |
109 return objectInitializerName; | |
110 } | |
111 private static Symbol classInitializerName() { | |
112 if (classInitializerName == null) { | |
113 classInitializerName = VM.getVM().getSymbolTable().probe("<clinit>"); | |
114 } | |
115 return classInitializerName; | |
116 } | |
117 | |
118 | |
119 /* | |
120 private static AddressCField interpreterEntry; | |
121 private static AddressCField fromCompiledCodeEntryPoint; | |
122 */ | |
123 | |
124 // Accessors for declared fields | |
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125 public ConstMethod getConstMethod() { |
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126 Address addr = constMethod.getValue(getAddress()); |
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127 return (ConstMethod) VMObjectFactory.newObject(ConstMethod.class, addr); |
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128 } |
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129 public ConstantPool getConstants() { |
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130 return getConstMethod().getConstants(); |
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131 } |
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132 public MethodData getMethodData() { |
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133 Address addr = methodData.getValue(getAddress()); |
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134 return (MethodData) VMObjectFactory.newObject(MethodData.class, addr); |
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135 } |
0 | 136 /** WARNING: this is in words, not useful in this system; use getObjectSize() instead */ |
137 public long getMethodSize() { return methodSize.getValue(this); } | |
138 public long getMaxStack() { return maxStack.getValue(this); } | |
139 public long getMaxLocals() { return maxLocals.getValue(this); } | |
140 public long getSizeOfParameters() { return sizeOfParameters.getValue(this); } | |
141 public long getNameIndex() { return getConstMethod().getNameIndex(); } | |
142 public long getSignatureIndex() { return getConstMethod().getSignatureIndex(); } | |
143 public long getGenericSignatureIndex() { return getConstMethod().getGenericSignatureIndex(); } | |
144 public long getAccessFlags() { return accessFlags.getValue(this); } | |
145 public long getCodeSize() { return getConstMethod().getCodeSize(); } | |
146 public long getVtableIndex() { return vtableIndex.getValue(this); } | |
147 public long getInvocationCounter() { | |
148 if (Assert.ASSERTS_ENABLED) { | |
149 Assert.that(!VM.getVM().isCore(), "must not be used in core build"); | |
150 } | |
151 return invocationCounter.getValue(this); | |
152 } | |
3939 | 153 public long getBackedgeCounter() { |
154 if (Assert.ASSERTS_ENABLED) { | |
155 Assert.that(!VM.getVM().isCore(), "must not be used in core build"); | |
156 } | |
157 return backedgeCounter.getValue(this); | |
158 } | |
0 | 159 |
160 // get associated compiled native method, if available, else return null. | |
161 public NMethod getNativeMethod() { | |
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162 Address addr = code.getValue(getAddress()); |
0 | 163 return (NMethod) VMObjectFactory.newObject(NMethod.class, addr); |
164 } | |
165 | |
166 // Convenience routine | |
167 public AccessFlags getAccessFlagsObj() { | |
168 return new AccessFlags(getAccessFlags()); | |
169 } | |
170 | |
171 /** Get a bytecode or breakpoint at the given bci */ | |
172 public int getBytecodeOrBPAt(int bci) { | |
173 return getConstMethod().getBytecodeOrBPAt(bci); | |
174 } | |
175 | |
176 /** Fetch the original non-breakpoint bytecode at the specified | |
177 bci. It is required that there is currently a bytecode at this | |
178 bci. */ | |
179 public int getOrigBytecodeAt(int bci) { | |
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180 BreakpointInfo bp = getMethodHolder().getBreakpoints(); |
0 | 181 for (; bp != null; bp = bp.getNext()) { |
182 if (bp.match(this, bci)) { | |
183 return bp.getOrigBytecode(); | |
184 } | |
185 } | |
186 System.err.println("Requested bci " + bci); | |
187 for (; bp != null; bp = bp.getNext()) { | |
188 System.err.println("Breakpoint at bci " + bp.getBCI() + ", bytecode " + | |
189 bp.getOrigBytecode()); | |
190 } | |
191 Assert.that(false, "Should not reach here"); | |
192 return -1; // not reached | |
193 } | |
194 | |
195 public byte getBytecodeByteArg(int bci) { | |
196 return getConstMethod().getBytecodeByteArg(bci); | |
197 } | |
198 | |
199 /** Fetches a 16-bit big-endian ("Java ordered") value from the | |
200 bytecode stream */ | |
201 public short getBytecodeShortArg(int bci) { | |
202 return getConstMethod().getBytecodeShortArg(bci); | |
203 } | |
204 | |
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205 /** Fetches a 16-bit native ordered value from the |
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206 bytecode stream */ |
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207 public short getNativeShortArg(int bci) { |
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208 return getConstMethod().getNativeShortArg(bci); |
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209 } |
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210 |
0 | 211 /** Fetches a 32-bit big-endian ("Java ordered") value from the |
212 bytecode stream */ | |
213 public int getBytecodeIntArg(int bci) { | |
214 return getConstMethod().getBytecodeIntArg(bci); | |
215 } | |
216 | |
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217 /** Fetches a 32-bit native ordered value from the |
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218 bytecode stream */ |
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219 public int getNativeIntArg(int bci) { |
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220 return getConstMethod().getNativeIntArg(bci); |
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221 } |
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222 |
0 | 223 public byte[] getByteCode() { |
224 return getConstMethod().getByteCode(); | |
225 } | |
226 | |
227 /* | |
228 public Address getCode() { return codeField.getValue(this); } | |
229 public Address getInterpreterEntry() { return interpreterEntryField.getValue(this); } | |
230 public Address getFromCompiledCodeEntryPoint() { return fromCompiledCodeEntryPointField.getValue(this); } | |
231 */ | |
232 // Accessors | |
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233 public Symbol getName() { return getConstants().getSymbolAt(getNameIndex()); } |
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234 public Symbol getSignature() { return getConstants().getSymbolAt(getSignatureIndex()); } |
0 | 235 public Symbol getGenericSignature() { |
236 long index = getGenericSignatureIndex(); | |
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237 return (index != 0L) ? getConstants().getSymbolAt(index) : null; |
0 | 238 } |
239 | |
240 // Method holder (the Klass holding this method) | |
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241 public InstanceKlass getMethodHolder() { return getConstants().getPoolHolder(); } |
0 | 242 |
243 // Access flags | |
244 public boolean isPublic() { return getAccessFlagsObj().isPublic(); } | |
245 public boolean isPrivate() { return getAccessFlagsObj().isPrivate(); } | |
246 public boolean isProtected() { return getAccessFlagsObj().isProtected(); } | |
247 public boolean isPackagePrivate() { AccessFlags af = getAccessFlagsObj(); | |
248 return (!af.isPublic() && !af.isPrivate() && !af.isProtected()); } | |
249 public boolean isStatic() { return getAccessFlagsObj().isStatic(); } | |
250 public boolean isFinal() { return getAccessFlagsObj().isFinal(); } | |
251 public boolean isSynchronized() { return getAccessFlagsObj().isSynchronized(); } | |
252 public boolean isBridge() { return getAccessFlagsObj().isBridge(); } | |
253 public boolean isVarArgs() { return getAccessFlagsObj().isVarArgs(); } | |
254 public boolean isNative() { return getAccessFlagsObj().isNative(); } | |
255 public boolean isAbstract() { return getAccessFlagsObj().isAbstract(); } | |
256 public boolean isStrict() { return getAccessFlagsObj().isStrict(); } | |
257 public boolean isSynthetic() { return getAccessFlagsObj().isSynthetic(); } | |
258 | |
259 public boolean isConstructor() { | |
260 return (!isStatic()) && getName().equals(objectInitializerName()); | |
261 } | |
262 | |
263 public boolean isStaticInitializer() { | |
264 return isStatic() && getName().equals(classInitializerName()); | |
265 } | |
266 | |
267 public boolean isObsolete() { | |
268 return getAccessFlagsObj().isObsolete(); | |
269 } | |
270 | |
271 public OopMapCacheEntry getMaskFor(int bci) { | |
272 OopMapCacheEntry entry = new OopMapCacheEntry(); | |
273 entry.fill(this, bci); | |
274 return entry; | |
275 } | |
276 | |
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277 public long getSize() { |
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278 return getMethodSize(); |
0 | 279 } |
280 | |
281 public void printValueOn(PrintStream tty) { | |
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282 tty.print("Method " + getName().asString() + getSignature().asString() + "@" + getAddress()); |
0 | 283 } |
284 | |
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285 public void iterateFields(MetadataVisitor visitor) { |
0 | 286 visitor.doCInt(methodSize, true); |
287 visitor.doCInt(maxStack, true); | |
288 visitor.doCInt(maxLocals, true); | |
289 visitor.doCInt(sizeOfParameters, true); | |
290 visitor.doCInt(accessFlags, true); | |
291 } | |
292 | |
293 public boolean hasLineNumberTable() { | |
294 return getConstMethod().hasLineNumberTable(); | |
295 } | |
296 | |
297 public int getLineNumberFromBCI(int bci) { | |
298 return getConstMethod().getLineNumberFromBCI(bci); | |
299 } | |
300 | |
301 public LineNumberTableElement[] getLineNumberTable() { | |
302 return getConstMethod().getLineNumberTable(); | |
303 } | |
304 | |
305 public boolean hasLocalVariableTable() { | |
306 return getConstMethod().hasLocalVariableTable(); | |
307 } | |
308 | |
309 /** Should only be called if table is present */ | |
310 public LocalVariableTableElement[] getLocalVariableTable() { | |
311 return getConstMethod().getLocalVariableTable(); | |
312 } | |
313 | |
314 public Symbol getLocalVariableName(int bci, int slot) { | |
315 if (! hasLocalVariableTable()) { | |
316 return null; | |
317 } | |
318 | |
319 LocalVariableTableElement[] locals = getLocalVariableTable(); | |
320 for (int l = 0; l < locals.length; l++) { | |
321 LocalVariableTableElement local = locals[l]; | |
322 if ((bci >= local.getStartBCI()) && | |
323 (bci < (local.getStartBCI() + local.getLength())) && | |
324 slot == local.getSlot()) { | |
325 return getConstants().getSymbolAt(local.getNameCPIndex()); | |
326 } | |
327 } | |
328 | |
329 return null; | |
330 } | |
331 | |
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332 public boolean hasExceptionTable() { |
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333 return getConstMethod().hasExceptionTable(); |
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334 } |
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335 |
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336 public ExceptionTableElement[] getExceptionTable() { |
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337 return getConstMethod().getExceptionTable(); |
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338 } |
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339 |
0 | 340 public boolean hasCheckedExceptions() { |
341 return getConstMethod().hasCheckedExceptions(); | |
342 } | |
343 | |
344 /** Should only be called if table is present */ | |
345 public CheckedExceptionElement[] getCheckedExceptions() { | |
346 return getConstMethod().getCheckedExceptions(); | |
347 } | |
348 | |
349 /** Returns name and signature in external form for debugging | |
350 purposes */ | |
351 public String externalNameAndSignature() { | |
352 final StringBuffer buf = new StringBuffer(); | |
353 buf.append(getMethodHolder().getName().asString()); | |
354 buf.append("."); | |
355 buf.append(getName().asString()); | |
356 buf.append("("); | |
357 new SignatureConverter(getSignature(), buf).iterateParameters(); | |
358 buf.append(")"); | |
359 return buf.toString().replace('/', '.'); | |
360 } | |
3939 | 361 public int interpreterThrowoutCount() { |
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362 return (int) interpreterThrowoutCountField.getValue(this); |
3939 | 363 } |
364 | |
365 public int interpreterInvocationCount() { | |
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366 return (int) interpreterInvocationCountField.getValue(this); |
3939 | 367 } |
0 | 368 } |