Mercurial > hg > graal-jvmci-8
annotate src/share/vm/classfile/systemDictionary.hpp @ 23660:b5f3a471e646
Merge.
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 01 Jun 2016 00:11:44 +0200 |
parents | 943c2bf064fa |
children | 19222d463306 |
rev | line source |
---|---|
0 | 1 /* |
21982
861108f5408e
Support derived references in HotSpotReferenceMap.
Roland Schatz <roland.schatz@oracle.com>
parents:
21730
diff
changeset
|
2 * Copyright (c) 1997, 2015, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1508
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1508
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1508
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #ifndef SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP |
26 #define SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP | |
27 | |
28 #include "classfile/classFileStream.hpp" | |
29 #include "classfile/classLoader.hpp" | |
30 #include "oops/objArrayOop.hpp" | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
31 #include "oops/symbol.hpp" |
1972 | 32 #include "runtime/java.hpp" |
33 #include "runtime/reflectionUtils.hpp" | |
34 #include "utilities/hashtable.hpp" | |
6197 | 35 #include "utilities/hashtable.inline.hpp" |
22494
88ab6f037ef2
Split vmSymbols and systemDictionary JVMCI definitions off into their own file
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22454
diff
changeset
|
36 #include "jvmci/systemDictionary_jvmci.hpp" |
1972 | 37 |
10405 | 38 |
0 | 39 // The system dictionary stores all loaded classes and maps: |
40 // | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
41 // [class name,class loader] -> class i.e. [Symbol*,oop] -> Klass* |
0 | 42 // |
43 // Classes are loaded lazily. The default VM class loader is | |
44 // represented as NULL. | |
45 | |
46 // The underlying data structure is an open hash table with a fixed number | |
47 // of buckets. During loading the loader object is locked, (for the VM loader | |
48 // a private lock object is used). Class loading can thus be done concurrently, | |
49 // but only by different loaders. | |
50 // | |
51 // During loading a placeholder (name, loader) is temporarily placed in | |
52 // a side data structure, and is used to detect ClassCircularityErrors | |
53 // and to perform verification during GC. A GC can occur in the midst | |
54 // of class loading, as we call out to Java, have to take locks, etc. | |
55 // | |
56 // When class loading is finished, a new entry is added to the system | |
57 // dictionary and the place holder is removed. Note that the protection | |
58 // domain field of the system dictionary has not yet been filled in when | |
59 // the "real" system dictionary entry is created. | |
60 // | |
61 // Clients of this class who are interested in finding if a class has | |
62 // been completely loaded -- not classes in the process of being loaded -- | |
63 // can read the SystemDictionary unlocked. This is safe because | |
64 // - entries are only deleted at safepoints | |
65 // - readers cannot come to a safepoint while actively examining | |
66 // an entry (an entry cannot be deleted from under a reader) | |
67 // - entries must be fully formed before they are available to concurrent | |
68 // readers (we must ensure write ordering) | |
69 // | |
70 // Note that placeholders are deleted at any time, as they are removed | |
71 // when a class is completely loaded. Therefore, readers as well as writers | |
72 // of placeholders must hold the SystemDictionary_lock. | |
73 // | |
74 | |
75 class Dictionary; | |
76 class PlaceholderTable; | |
77 class LoaderConstraintTable; | |
6197 | 78 template <MEMFLAGS F> class HashtableBucket; |
0 | 79 class ResolutionErrorTable; |
710 | 80 class SymbolPropertyTable; |
13400
86e6d691f2e1
8028128: Add a type safe alternative for working with counter based data
mgronlun
parents:
13385
diff
changeset
|
81 class Ticks; |
0 | 82 |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
83 // Certain classes are preloaded, such as java.lang.Object and java.lang.String. |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
84 // They are all "well-known", in the sense that no class loader is allowed |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
85 // to provide a different definition. |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
86 // |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
87 // These klasses must all have names defined in vmSymbols. |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
88 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
89 #define WK_KLASS_ENUM_NAME(kname) kname##_knum |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
90 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
91 // Each well-known class has a short klass name (like object_klass), |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
92 // a vmSymbol name (like java_lang_Object), and a flag word |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
93 // that makes some minor distinctions, like whether the klass |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
94 // is preloaded, optional, release-specific, etc. |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
95 // The order of these definitions is significant; it is the order in which |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
96 // preloading is actually performed by initialize_preloaded_classes. |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
97 |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
98 #define WK_KLASSES_DO(do_klass) \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
99 /* well-known classes */ \ |
6852 | 100 do_klass(Object_klass, java_lang_Object, Pre ) \ |
101 do_klass(String_klass, java_lang_String, Pre ) \ | |
102 do_klass(Class_klass, java_lang_Class, Pre ) \ | |
103 do_klass(Cloneable_klass, java_lang_Cloneable, Pre ) \ | |
104 do_klass(ClassLoader_klass, java_lang_ClassLoader, Pre ) \ | |
105 do_klass(Serializable_klass, java_io_Serializable, Pre ) \ | |
106 do_klass(System_klass, java_lang_System, Pre ) \ | |
107 do_klass(Throwable_klass, java_lang_Throwable, Pre ) \ | |
108 do_klass(Error_klass, java_lang_Error, Pre ) \ | |
109 do_klass(ThreadDeath_klass, java_lang_ThreadDeath, Pre ) \ | |
110 do_klass(Exception_klass, java_lang_Exception, Pre ) \ | |
111 do_klass(RuntimeException_klass, java_lang_RuntimeException, Pre ) \ | |
8866
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8751
diff
changeset
|
112 do_klass(SecurityManager_klass, java_lang_SecurityManager, Pre ) \ |
6852 | 113 do_klass(ProtectionDomain_klass, java_security_ProtectionDomain, Pre ) \ |
114 do_klass(AccessControlContext_klass, java_security_AccessControlContext, Pre ) \ | |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
115 do_klass(SecureClassLoader_klass, java_security_SecureClassLoader, Pre ) \ |
6852 | 116 do_klass(ClassNotFoundException_klass, java_lang_ClassNotFoundException, Pre ) \ |
117 do_klass(NoClassDefFoundError_klass, java_lang_NoClassDefFoundError, Pre ) \ | |
118 do_klass(LinkageError_klass, java_lang_LinkageError, Pre ) \ | |
119 do_klass(ClassCastException_klass, java_lang_ClassCastException, Pre ) \ | |
120 do_klass(ArrayStoreException_klass, java_lang_ArrayStoreException, Pre ) \ | |
121 do_klass(VirtualMachineError_klass, java_lang_VirtualMachineError, Pre ) \ | |
122 do_klass(OutOfMemoryError_klass, java_lang_OutOfMemoryError, Pre ) \ | |
123 do_klass(StackOverflowError_klass, java_lang_StackOverflowError, Pre ) \ | |
124 do_klass(IllegalMonitorStateException_klass, java_lang_IllegalMonitorStateException, Pre ) \ | |
125 do_klass(Reference_klass, java_lang_ref_Reference, Pre ) \ | |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
126 \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
127 /* Preload ref klasses and set reference types */ \ |
6852 | 128 do_klass(SoftReference_klass, java_lang_ref_SoftReference, Pre ) \ |
129 do_klass(WeakReference_klass, java_lang_ref_WeakReference, Pre ) \ | |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
130 do_klass(FinalReference_klass, java_lang_ref_FinalReference, Pre ) \ |
6852 | 131 do_klass(PhantomReference_klass, java_lang_ref_PhantomReference, Pre ) \ |
20755 | 132 do_klass(Cleaner_klass, sun_misc_Cleaner, Pre ) \ |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
133 do_klass(Finalizer_klass, java_lang_ref_Finalizer, Pre ) \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
134 \ |
6852 | 135 do_klass(Thread_klass, java_lang_Thread, Pre ) \ |
136 do_klass(ThreadGroup_klass, java_lang_ThreadGroup, Pre ) \ | |
137 do_klass(Properties_klass, java_util_Properties, Pre ) \ | |
138 do_klass(reflect_AccessibleObject_klass, java_lang_reflect_AccessibleObject, Pre ) \ | |
139 do_klass(reflect_Field_klass, java_lang_reflect_Field, Pre ) \ | |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7185
diff
changeset
|
140 do_klass(reflect_Parameter_klass, java_lang_reflect_Parameter, Opt ) \ |
6852 | 141 do_klass(reflect_Method_klass, java_lang_reflect_Method, Pre ) \ |
142 do_klass(reflect_Constructor_klass, java_lang_reflect_Constructor, Pre ) \ | |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
143 \ |
3938 | 144 /* NOTE: needed too early in bootstrapping process to have checks based on JDK version */ \ |
145 /* Universe::is_gte_jdk14x_version() is not set up by this point. */ \ | |
146 /* It's okay if this turns out to be NULL in non-1.4 JDKs. */ \ | |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
147 do_klass(reflect_MagicAccessorImpl_klass, sun_reflect_MagicAccessorImpl, Opt ) \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
148 do_klass(reflect_MethodAccessorImpl_klass, sun_reflect_MethodAccessorImpl, Opt_Only_JDK14NewRef) \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
149 do_klass(reflect_ConstructorAccessorImpl_klass, sun_reflect_ConstructorAccessorImpl, Opt_Only_JDK14NewRef) \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
150 do_klass(reflect_DelegatingClassLoader_klass, sun_reflect_DelegatingClassLoader, Opt ) \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
151 do_klass(reflect_ConstantPool_klass, sun_reflect_ConstantPool, Opt_Only_JDK15 ) \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
152 do_klass(reflect_UnsafeStaticFieldAccessorImpl_klass, sun_reflect_UnsafeStaticFieldAccessorImpl, Opt_Only_JDK15 ) \ |
8866
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8751
diff
changeset
|
153 do_klass(reflect_CallerSensitive_klass, sun_reflect_CallerSensitive, Opt ) \ |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
154 \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
155 /* support for dynamic typing; it's OK if these are NULL in earlier JDKs */ \ |
12010
ca0165daa6ec
7187554: JSR 292: JVMTI PopFrame needs to handle appendix arguments
sspitsyn
parents:
10405
diff
changeset
|
156 do_klass(DirectMethodHandle_klass, java_lang_invoke_DirectMethodHandle, Opt ) \ |
6852 | 157 do_klass(MethodHandle_klass, java_lang_invoke_MethodHandle, Pre_JSR292 ) \ |
158 do_klass(MemberName_klass, java_lang_invoke_MemberName, Pre_JSR292 ) \ | |
159 do_klass(MethodHandleNatives_klass, java_lang_invoke_MethodHandleNatives, Pre_JSR292 ) \ | |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
160 do_klass(LambdaForm_klass, java_lang_invoke_LambdaForm, Opt ) \ |
6852 | 161 do_klass(MethodType_klass, java_lang_invoke_MethodType, Pre_JSR292 ) \ |
162 do_klass(BootstrapMethodError_klass, java_lang_BootstrapMethodError, Pre_JSR292 ) \ | |
163 do_klass(CallSite_klass, java_lang_invoke_CallSite, Pre_JSR292 ) \ | |
164 do_klass(ConstantCallSite_klass, java_lang_invoke_ConstantCallSite, Pre_JSR292 ) \ | |
165 do_klass(MutableCallSite_klass, java_lang_invoke_MutableCallSite, Pre_JSR292 ) \ | |
166 do_klass(VolatileCallSite_klass, java_lang_invoke_VolatileCallSite, Pre_JSR292 ) \ | |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
167 /* Note: MethodHandle must be first, and VolatileCallSite last in group */ \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
168 \ |
6852 | 169 do_klass(StringBuffer_klass, java_lang_StringBuffer, Pre ) \ |
170 do_klass(StringBuilder_klass, java_lang_StringBuilder, Pre ) \ | |
13403
9d15b81d5d1b
8016839: JSR292: AME instead of IAE when calling a method
drchase
parents:
13385
diff
changeset
|
171 do_klass(misc_Unsafe_klass, sun_misc_Unsafe, Pre ) \ |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
172 \ |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
173 /* support for CDS */ \ |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
174 do_klass(ByteArrayInputStream_klass, java_io_ByteArrayInputStream, Pre ) \ |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
175 do_klass(File_klass, java_io_File, Pre ) \ |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
176 do_klass(URLClassLoader_klass, java_net_URLClassLoader, Pre ) \ |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
177 do_klass(URL_klass, java_net_URL, Pre ) \ |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
178 do_klass(Jar_Manifest_klass, java_util_jar_Manifest, Pre ) \ |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
179 do_klass(sun_misc_Launcher_klass, sun_misc_Launcher, Pre ) \ |
20608
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
parents:
20375
diff
changeset
|
180 do_klass(sun_misc_Launcher_AppClassLoader_klass, sun_misc_Launcher_AppClassLoader, Pre ) \ |
4cb90023bf2b
8061651: Interface to the Lookup Index Cache to improve URLClassPath search time
iklam
parents:
20375
diff
changeset
|
181 do_klass(sun_misc_Launcher_ExtClassLoader_klass, sun_misc_Launcher_ExtClassLoader, Pre ) \ |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
182 do_klass(CodeSource_klass, java_security_CodeSource, Pre ) \ |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
183 \ |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
184 /* It's NULL in non-1.4 JDKs. */ \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
185 do_klass(StackTraceElement_klass, java_lang_StackTraceElement, Opt ) \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
186 /* Universe::is_gte_jdk14x_version() is not set up by this point. */ \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
187 /* It's okay if this turns out to be NULL in non-1.4 JDKs. */ \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
188 do_klass(nio_Buffer_klass, java_nio_Buffer, Opt ) \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
189 \ |
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
190 /* Preload boxing klasses */ \ |
6852 | 191 do_klass(Boolean_klass, java_lang_Boolean, Pre ) \ |
192 do_klass(Character_klass, java_lang_Character, Pre ) \ | |
193 do_klass(Float_klass, java_lang_Float, Pre ) \ | |
194 do_klass(Double_klass, java_lang_Double, Pre ) \ | |
195 do_klass(Byte_klass, java_lang_Byte, Pre ) \ | |
196 do_klass(Short_klass, java_lang_Short, Pre ) \ | |
197 do_klass(Integer_klass, java_lang_Integer, Pre ) \ | |
198 do_klass(Long_klass, java_lang_Long, Pre ) \ | |
6948
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
199 \ |
22494
88ab6f037ef2
Split vmSymbols and systemDictionary JVMCI definitions off into their own file
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22454
diff
changeset
|
200 /* JVMCI classes. These are loaded on-demand. */ \ |
88ab6f037ef2
Split vmSymbols and systemDictionary JVMCI definitions off into their own file
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22454
diff
changeset
|
201 JVMCI_WK_KLASSES_DO(do_klass) \ |
6948
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
202 |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
203 /*end*/ |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
204 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
205 |
0 | 206 class SystemDictionary : AllStatic { |
207 friend class VMStructs; | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
208 friend class SystemDictionaryHandles; |
0 | 209 |
210 public: | |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
211 enum WKID { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
212 NO_WKID = 0, |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
213 |
3938 | 214 #define WK_KLASS_ENUM(name, symbol, ignore_o) WK_KLASS_ENUM_NAME(name), WK_KLASS_ENUM_NAME(symbol) = WK_KLASS_ENUM_NAME(name), |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
215 WK_KLASSES_DO(WK_KLASS_ENUM) |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
216 #undef WK_KLASS_ENUM |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
217 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
218 WKID_LIMIT, |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
219 |
22298 | 220 #if INCLUDE_JVMCI |
22299
7b4a47fcc4c0
Move most of jdk.internal.jvmci.debug back into com.oracle.graal.debug
Tom Rodriguez <tom.rodriguez@oracle.com>
parents:
22298
diff
changeset
|
221 FIRST_JVMCI_WKID = WK_KLASS_ENUM_NAME(HotSpotCompiledCode_klass), |
22504
943c2bf064fa
Collapse Value and AbstractValue into a single abstract base class.
Roland Schatz <roland.schatz@oracle.com>
parents:
22494
diff
changeset
|
222 LAST_JVMCI_WKID = WK_KLASS_ENUM_NAME(Value_klass), |
16395
ad431bf0de07
added support to load classes from graal.jar with a separate class loader
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
223 #endif |
ad431bf0de07
added support to load classes from graal.jar with a separate class loader
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
224 |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
225 FIRST_WKID = NO_WKID + 1 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
226 }; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
227 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
228 enum InitOption { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
229 Pre, // preloaded; error if not present |
6852 | 230 Pre_JSR292, // preloaded if EnableInvokeDynamic |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
231 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
232 // Order is significant. Options before this point require resolve_or_fail. |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
233 // Options after this point will use resolve_or_null instead. |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
234 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
235 Opt, // preload tried; NULL if not present |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
236 Opt_Only_JDK14NewRef, // preload tried; use only with NewReflection |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
237 Opt_Only_JDK15, // preload tried; use only with JDK1.5+ |
22298 | 238 #if INCLUDE_JVMCI |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21556
diff
changeset
|
239 Jvmci, // preload tried; error if not present, use only with JVMCI |
16395
ad431bf0de07
added support to load classes from graal.jar with a separate class loader
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
240 #endif |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
241 OPTION_LIMIT, |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
242 CEIL_LG_OPTION_LIMIT = 4 // OPTION_LIMIT <= (1<<CEIL_LG_OPTION_LIMIT) |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
243 }; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
244 |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
245 |
0 | 246 // Returns a class with a given class name and class loader. Loads the |
247 // class if needed. If not found a NoClassDefFoundError or a | |
248 // ClassNotFoundException is thrown, depending on the value on the | |
249 // throw_error flag. For most uses the throw_error argument should be set | |
250 // to true. | |
251 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
252 static Klass* resolve_or_fail(Symbol* class_name, Handle class_loader, Handle protection_domain, bool throw_error, TRAPS); |
0 | 253 // Convenient call for null loader and protection domain. |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
254 static Klass* resolve_or_fail(Symbol* class_name, bool throw_error, TRAPS); |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
255 protected: |
0 | 256 // handle error translation for resolve_or_null results |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
257 static Klass* handle_resolution_exception(Symbol* class_name, Handle class_loader, Handle protection_domain, bool throw_error, KlassHandle klass_h, TRAPS); |
0 | 258 |
259 public: | |
260 | |
261 // Returns a class with a given class name and class loader. | |
262 // Loads the class if needed. If not found NULL is returned. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
263 static Klass* resolve_or_null(Symbol* class_name, Handle class_loader, Handle protection_domain, TRAPS); |
0 | 264 // Version with null loader and protection domain |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
265 static Klass* resolve_or_null(Symbol* class_name, TRAPS); |
0 | 266 |
267 // Resolve a superclass or superinterface. Called from ClassFileParser, | |
268 // parse_interfaces, resolve_instance_class_or_null, load_shared_class | |
269 // "child_name" is the class whose super class or interface is being resolved. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
270 static Klass* resolve_super_or_fail(Symbol* child_name, |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
271 Symbol* class_name, |
0 | 272 Handle class_loader, |
273 Handle protection_domain, | |
274 bool is_superclass, | |
275 TRAPS); | |
276 | |
277 // Parse new stream. This won't update the system dictionary or | |
278 // class hierarchy, simply parse the stream. Used by JVMTI RedefineClasses. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
279 static Klass* parse_stream(Symbol* class_name, |
0 | 280 Handle class_loader, |
281 Handle protection_domain, | |
282 ClassFileStream* st, | |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
283 TRAPS) { |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
284 KlassHandle nullHandle; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
285 return parse_stream(class_name, class_loader, protection_domain, st, nullHandle, NULL, THREAD); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
286 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
287 static Klass* parse_stream(Symbol* class_name, |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
288 Handle class_loader, |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
289 Handle protection_domain, |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
290 ClassFileStream* st, |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
291 KlassHandle host_klass, |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
292 GrowableArray<Handle>* cp_patches, |
0 | 293 TRAPS); |
294 | |
295 // Resolve from stream (called by jni_DefineClass and JVM_DefineClass) | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
296 static Klass* resolve_from_stream(Symbol* class_name, Handle class_loader, |
973
ad6585fd4087
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
726
diff
changeset
|
297 Handle protection_domain, |
ad6585fd4087
6830542: Performance: JVM_DefineClass already verified.
acorn
parents:
726
diff
changeset
|
298 ClassFileStream* st, bool verify, TRAPS); |
0 | 299 |
300 // Lookup an already loaded class. If not found NULL is returned. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
301 static Klass* find(Symbol* class_name, Handle class_loader, Handle protection_domain, TRAPS); |
0 | 302 |
303 // Lookup an already loaded instance or array class. | |
304 // Do not make any queries to class loaders; consult only the cache. | |
305 // If not found NULL is returned. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
306 static Klass* find_instance_or_array_klass(Symbol* class_name, |
0 | 307 Handle class_loader, |
308 Handle protection_domain, | |
309 TRAPS); | |
310 | |
311 // Lookup an instance or array class that has already been loaded | |
312 // either into the given class loader, or else into another class | |
313 // loader that is constrained (via loader constraints) to produce | |
314 // a consistent class. Do not take protection domains into account. | |
315 // Do not make any queries to class loaders; consult only the cache. | |
316 // Return NULL if the class is not found. | |
317 // | |
318 // This function is a strict superset of find_instance_or_array_klass. | |
319 // This function (the unchecked version) makes a conservative prediction | |
320 // of the result of the checked version, assuming successful lookup. | |
321 // If both functions return non-null, they must return the same value. | |
322 // Also, the unchecked version may sometimes be non-null where the | |
323 // checked version is null. This can occur in several ways: | |
324 // 1. No query has yet been made to the class loader. | |
325 // 2. The class loader was queried, but chose not to delegate. | |
326 // 3. ClassLoader.checkPackageAccess rejected a proposed protection domain. | |
327 // 4. Loading was attempted, but there was a linkage error of some sort. | |
328 // In all of these cases, the loader constraints on this type are | |
329 // satisfied, and it is safe for classes in the given class loader | |
330 // to manipulate strongly-typed values of the found class, subject | |
331 // to local linkage and access checks. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
332 static Klass* find_constrained_instance_or_array_klass(Symbol* class_name, |
0 | 333 Handle class_loader, |
334 TRAPS); | |
335 | |
336 // Iterate over all klasses in dictionary | |
337 // Just the classes from defining class loaders | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
338 static void classes_do(void f(Klass*)); |
0 | 339 // Added for initialize_itable_for_klass to handle exceptions |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
340 static void classes_do(void f(Klass*, TRAPS), TRAPS); |
0 | 341 // All classes, and their class loaders |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
342 static void classes_do(void f(Klass*, ClassLoaderData*)); |
10268
43083e670adf
8005056: NPG: Crash after redefining java.lang.Object
coleenp
parents:
8880
diff
changeset
|
343 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
344 static void placeholders_do(void f(Symbol*)); |
0 | 345 |
346 // Iterate over all methods in all klasses in dictionary | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
347 static void methods_do(void f(Method*)); |
0 | 348 |
349 // Garbage collection support | |
350 | |
351 // This method applies "blk->do_oop" to all the pointers to "system" | |
352 // classes and loaders. | |
353 static void always_strong_oops_do(OopClosure* blk); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
354 static void always_strong_classes_do(KlassClosure* closure); |
0 | 355 |
356 // Unload (that is, break root links to) all unmarked classes and | |
357 // loaders. Returns "true" iff something was unloaded. | |
20619
b12a2a9b05ca
8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse
stefank
parents:
20608
diff
changeset
|
358 static bool do_unloading(BoolObjectClosure* is_alive, bool clean_alive = true); |
0 | 359 |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
360 // Used by DumpSharedSpaces only to remove classes that failed verification |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
361 static void remove_classes_in_error_state(); |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
362 |
4864
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
363 static int calculate_systemdictionary_size(int loadedclasses); |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
364 |
0 | 365 // Applies "f->do_oop" to all root oops in the system dictionary. |
366 static void oops_do(OopClosure* f); | |
20278
2c6ef90f030a
8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents:
17883
diff
changeset
|
367 static void roots_oops_do(OopClosure* strong, OopClosure* weak); |
0 | 368 |
369 // System loader lock | |
370 static oop system_loader_lock() { return _system_loader_lock_obj; } | |
371 | |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
372 protected: |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
373 // Extended Redefine classes support (tbi) |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
374 static void preloaded_classes_do(KlassClosure* f); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
375 static void lazily_loaded_classes_do(KlassClosure* f); |
0 | 376 public: |
377 // Sharing support. | |
378 static void reorder_dictionary(); | |
379 static void copy_buckets(char** top, char* end); | |
380 static void copy_table(char** top, char* end); | |
381 static void reverse(); | |
6197 | 382 static void set_shared_dictionary(HashtableBucket<mtClass>* t, int length, |
0 | 383 int number_of_entries); |
384 // Printing | |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
385 static void print(bool details = true); |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
386 static void print_shared(bool details = true); |
0 | 387 static void print_class_statistics() PRODUCT_RETURN; |
388 static void print_method_statistics() PRODUCT_RETURN; | |
389 | |
390 // Number of contained klasses | |
391 // This is both fully loaded classes and classes in the process | |
392 // of being loaded | |
393 static int number_of_classes(); | |
394 | |
395 // Monotonically increasing counter which grows as classes are | |
396 // loaded or modifications such as hot-swapping or setting/removing | |
397 // of breakpoints are performed | |
398 static inline int number_of_modifications() { assert_locked_or_safepoint(Compile_lock); return _number_of_modifications; } | |
399 // Needed by evolution and breakpoint code | |
400 static inline void notice_modification() { assert_locked_or_safepoint(Compile_lock); ++_number_of_modifications; } | |
401 | |
402 // Verification | |
403 static void verify(); | |
404 | |
405 #ifdef ASSERT | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
406 static bool is_internal_format(Symbol* class_name); |
0 | 407 #endif |
408 | |
409 // Initialization | |
410 static void initialize(TRAPS); | |
411 | |
412 // Fast access to commonly used classes (preloaded) | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
413 static Klass* check_klass(Klass* k) { |
0 | 414 assert(k != NULL, "preloaded klass not initialized"); |
415 return k; | |
416 } | |
417 | |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
418 static Klass* check_klass_Pre( Klass* k) { return check_klass(k); } |
6852 | 419 static Klass* check_klass_Pre_JSR292(Klass* k) { return EnableInvokeDynamic ? check_klass(k) : k; } |
6847
65d07d9ee446
8000263: JSR 292: signature types may appear to be unloaded
twisti
parents:
6822
diff
changeset
|
420 static Klass* check_klass_Opt( Klass* k) { return k; } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
421 static Klass* check_klass_Opt_Only_JDK15(Klass* k) { |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
422 assert(JDK_Version::is_gte_jdk15x_version(), "JDK 1.5 only"); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
423 return k; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
424 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
425 static Klass* check_klass_Opt_Only_JDK14NewRef(Klass* k) { |
0 | 426 assert(JDK_Version::is_gte_jdk14x_version() && UseNewReflection, "JDK 1.4 only"); |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
427 // despite the optional loading, if you use this it must be present: |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
428 return check_klass(k); |
0 | 429 } |
22298 | 430 #if INCLUDE_JVMCI |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21556
diff
changeset
|
431 static Klass* check_klass_Jvmci(Klass* k) { return k; } |
16395
ad431bf0de07
added support to load classes from graal.jar with a separate class loader
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
432 #endif |
0 | 433 |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
434 static bool initialize_wk_klass(WKID id, int init_opt, TRAPS); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
435 static void initialize_wk_klasses_until(WKID limit_id, WKID &start_id, TRAPS); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
436 static void initialize_wk_klasses_through(WKID end_id, WKID &start_id, TRAPS) { |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
437 int limit = (int)end_id + 1; |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
438 initialize_wk_klasses_until((WKID) limit, start_id, THREAD); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
439 } |
0 | 440 |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
441 public: |
3938 | 442 #define WK_KLASS_DECLARE(name, symbol, option) \ |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
443 static Klass* name() { return check_klass_##option(_well_known_klasses[WK_KLASS_ENUM_NAME(name)]); } \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
444 static Klass** name##_addr() { \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
445 return &SystemDictionary::_well_known_klasses[SystemDictionary::WK_KLASS_ENUM_NAME(name)]; \ |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
446 } |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
447 WK_KLASSES_DO(WK_KLASS_DECLARE); |
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
448 #undef WK_KLASS_DECLARE |
0 | 449 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
450 static Klass* well_known_klass(WKID id) { |
3938 | 451 assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob"); |
452 return _well_known_klasses[id]; | |
453 } | |
454 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
455 static Klass** well_known_klass_addr(WKID id) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
456 assert(id >= (int)FIRST_WKID && id < (int)WKID_LIMIT, "oob"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
457 return &_well_known_klasses[id]; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
458 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
459 |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
460 // Local definition for direct access to the private array: |
147 | 461 #define WK_KLASS(name) _well_known_klasses[SystemDictionary::WK_KLASS_ENUM_NAME(name)] |
0 | 462 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
463 static Klass* box_klass(BasicType t) { |
0 | 464 assert((uint)t < T_VOID+1, "range check"); |
465 return check_klass(_box_klasses[t]); | |
466 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
467 static BasicType box_klass_type(Klass* k); // inverse of box_klass |
0 | 468 |
469 // methods returning lazily loaded klasses | |
470 // The corresponding method to load the class must be called before calling them. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
471 static Klass* abstract_ownable_synchronizer_klass() { return check_klass(_abstract_ownable_synchronizer_klass); } |
0 | 472 |
473 static void load_abstract_ownable_synchronizer_klass(TRAPS); | |
474 | |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
475 protected: |
0 | 476 // Tells whether ClassLoader.loadClassInternal is present |
477 static bool has_loadClassInternal() { return _has_loadClassInternal; } | |
478 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
479 // Returns the class loader data to be used when looking up/updating the |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
480 // system dictionary. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
481 static ClassLoaderData *class_loader_data(Handle class_loader) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
482 return ClassLoaderData::class_loader_data(class_loader()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
483 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
484 |
0 | 485 public: |
486 // Tells whether ClassLoader.checkPackageAccess is present | |
487 static bool has_checkPackageAccess() { return _has_checkPackageAccess; } | |
488 | |
7462
ade95d680b42
8004728: Add hotspot support for parameter reflection
coleenp
parents:
7185
diff
changeset
|
489 static bool Parameter_klass_loaded() { return WK_KLASS(reflect_Parameter_klass) != NULL; } |
1142 | 490 static bool Class_klass_loaded() { return WK_KLASS(Class_klass) != NULL; } |
491 static bool Cloneable_klass_loaded() { return WK_KLASS(Cloneable_klass) != NULL; } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
492 static bool Object_klass_loaded() { return WK_KLASS(Object_klass) != NULL; } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
493 static bool ClassLoader_klass_loaded() { return WK_KLASS(ClassLoader_klass) != NULL; } |
0 | 494 |
495 // Returns default system loader | |
496 static oop java_system_loader(); | |
497 | |
22298 | 498 #if INCLUDE_JVMCI |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21556
diff
changeset
|
499 // Returns the JVMCI loader. This will be NULL if !UseJVMCIClassLoader |
16395
ad431bf0de07
added support to load classes from graal.jar with a separate class loader
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
500 // in which case it's equivalent to the boot loader |
22450
a17e3063a7b5
moved SystemDictionary::jvmci_loader and SystemDictionary::init_jvmci_loader definitions to the header file
Doug Simon <doug.simon@oracle.com>
parents:
22445
diff
changeset
|
501 static oop jvmci_loader() { return _jvmci_loader; } |
a17e3063a7b5
moved SystemDictionary::jvmci_loader and SystemDictionary::init_jvmci_loader definitions to the header file
Doug Simon <doug.simon@oracle.com>
parents:
22445
diff
changeset
|
502 |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21556
diff
changeset
|
503 // Sets the JVMCI loader. This is called at most once. |
22450
a17e3063a7b5
moved SystemDictionary::jvmci_loader and SystemDictionary::init_jvmci_loader definitions to the header file
Doug Simon <doug.simon@oracle.com>
parents:
22445
diff
changeset
|
504 static void init_jvmci_loader(oop loader) { |
a17e3063a7b5
moved SystemDictionary::jvmci_loader and SystemDictionary::init_jvmci_loader definitions to the header file
Doug Simon <doug.simon@oracle.com>
parents:
22445
diff
changeset
|
505 assert(UseJVMCIClassLoader == (loader != NULL), "must be"); |
a17e3063a7b5
moved SystemDictionary::jvmci_loader and SystemDictionary::init_jvmci_loader definitions to the header file
Doug Simon <doug.simon@oracle.com>
parents:
22445
diff
changeset
|
506 _jvmci_loader = loader; |
a17e3063a7b5
moved SystemDictionary::jvmci_loader and SystemDictionary::init_jvmci_loader definitions to the header file
Doug Simon <doug.simon@oracle.com>
parents:
22445
diff
changeset
|
507 } |
16395
ad431bf0de07
added support to load classes from graal.jar with a separate class loader
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
508 #endif |
ad431bf0de07
added support to load classes from graal.jar with a separate class loader
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
509 |
0 | 510 // Compute the default system loader |
511 static void compute_java_system_loader(TRAPS); | |
512 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
513 // Register a new class loader |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
6934
diff
changeset
|
514 static ClassLoaderData* register_loader(Handle class_loader, TRAPS); |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
515 protected: |
0 | 516 // Mirrors for primitive classes (created eagerly) |
517 static oop check_mirror(oop m) { | |
518 assert(m != NULL, "mirror not initialized"); | |
519 return m; | |
520 } | |
521 | |
522 public: | |
523 // Note: java_lang_Class::primitive_type is the inverse of java_mirror | |
524 | |
525 // Check class loader constraints | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
526 static bool add_loader_constraint(Symbol* name, Handle loader1, |
0 | 527 Handle loader2, TRAPS); |
8840
cd3089a56438
8009731: Confusing error message for loader constraint violation
acorn
parents:
8751
diff
changeset
|
528 static Symbol* check_signature_loaders(Symbol* signature, Handle loader1, |
cd3089a56438
8009731: Confusing error message for loader constraint violation
acorn
parents:
8751
diff
changeset
|
529 Handle loader2, bool is_method, TRAPS); |
0 | 530 |
710 | 531 // JSR 292 |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
532 // find a java.lang.invoke.MethodHandle.invoke* method for a given signature |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
533 // (asks Java to compute it if necessary, except in a compiler thread) |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
534 static methodHandle find_method_handle_invoker(Symbol* name, |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
535 Symbol* signature, |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
536 KlassHandle accessing_klass, |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
537 Handle *appendix_result, |
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6725
diff
changeset
|
538 Handle *method_type_result, |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
539 TRAPS); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
540 // for a given signature, find the internal MethodHandle method (linkTo* or invokeBasic) |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
541 // (does not ask Java, since this is a low-level intrinsic defined by the JVM) |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
542 static methodHandle find_method_handle_intrinsic(vmIntrinsics::ID iid, |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
543 Symbol* signature, |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
544 TRAPS); |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
545 // find a java.lang.invoke.MethodType object for a given signature |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
546 // (asks Java to compute it if necessary, except in a compiler thread) |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
547 static Handle find_method_handle_type(Symbol* signature, |
1508
2ffde6cfe049
6939196: method handle signatures off the boot class path get linkage errors
jrose
parents:
1507
diff
changeset
|
548 KlassHandle accessing_klass, |
1507
cd5dbf694d45
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
1152
diff
changeset
|
549 TRAPS); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
550 |
2357
8033953d67ff
7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents:
2356
diff
changeset
|
551 // ask Java to compute a java.lang.invoke.MethodHandle object for a given CP entry |
1602 | 552 static Handle link_method_handle_constant(KlassHandle caller, |
553 int ref_kind, //e.g., JVM_REF_invokeVirtual | |
554 KlassHandle callee, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
555 Symbol* name, |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
556 Symbol* signature, |
1602 | 557 TRAPS); |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
558 |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
559 // ask Java to create a dynamic call site, while linking an invokedynamic op |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
560 static methodHandle find_dynamic_call_site_invoker(KlassHandle caller, |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
561 Handle bootstrap_method, |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
562 Symbol* name, |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
563 Symbol* type, |
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
564 Handle *appendix_result, |
6822
f6b0eb4e44cf
7200949: JSR 292: rubybench/bench/time/bench_base64.rb fails with jruby.jar not on boot class path
twisti
parents:
6725
diff
changeset
|
565 Handle *method_type_result, |
6266
1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents:
6197
diff
changeset
|
566 TRAPS); |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
710
diff
changeset
|
567 |
0 | 568 // Utility for printing loader "name" as part of tracing constraints |
569 static const char* loader_name(oop loader) { | |
570 return ((loader) == NULL ? "<bootloader>" : | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
571 InstanceKlass::cast((loader)->klass())->name()->as_C_string() ); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
572 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
573 static const char* loader_name(ClassLoaderData* loader_data) { |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
6934
diff
changeset
|
574 return (loader_data->class_loader() == NULL ? "<bootloader>" : |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
575 InstanceKlass::cast((loader_data->class_loader())->klass())->name()->as_C_string() ); |
0 | 576 } |
577 | |
578 // Record the error when the first attempt to resolve a reference from a constant | |
579 // pool entry to a class fails. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
580 static void add_resolution_error(constantPoolHandle pool, int which, Symbol* error); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
581 static void delete_resolution_error(ConstantPool* pool); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
582 static Symbol* find_resolution_error(constantPoolHandle pool, int which); |
0 | 583 |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
584 protected: |
0 | 585 |
586 enum Constants { | |
587 _loader_constraint_size = 107, // number of entries in constraint table | |
588 _resolution_error_size = 107, // number of entries in resolution error table | |
710 | 589 _invoke_method_size = 139, // number of entries in invoke method table |
4864
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
590 _nof_buckets = 1009, // number of buckets in hash table for placeholders |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
591 _old_default_sdsize = 1009, // backward compat for system dictionary size |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
592 _prime_array_size = 8, // array of primes for system dictionary size |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
593 _average_depth_goal = 3 // goal for lookup length |
0 | 594 }; |
595 | |
596 | |
597 // Static variables | |
598 | |
4864
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
599 // hashtable sizes for system dictionary to allow growth |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
600 // prime numbers for system dictionary size |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
601 static int _sdgeneration; |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
602 static const int _primelist[_prime_array_size]; |
b2cd0ee8f778
7114376: Make system dictionary hashtable bucket array size configurable
acorn
parents:
3938
diff
changeset
|
603 |
0 | 604 // Hashtable holding loaded classes. |
605 static Dictionary* _dictionary; | |
606 | |
607 // Hashtable holding placeholders for classes being loaded. | |
608 static PlaceholderTable* _placeholders; | |
609 | |
610 // Hashtable holding classes from the shared archive. | |
611 static Dictionary* _shared_dictionary; | |
612 | |
613 // Monotonically increasing counter which grows with | |
614 // _number_of_classes as well as hot-swapping and breakpoint setting | |
615 // and removal. | |
616 static int _number_of_modifications; | |
617 | |
618 // Lock object for system class loader | |
619 static oop _system_loader_lock_obj; | |
620 | |
621 // Constraints on class loaders | |
622 static LoaderConstraintTable* _loader_constraints; | |
623 | |
624 // Resolution errors | |
625 static ResolutionErrorTable* _resolution_errors; | |
626 | |
710 | 627 // Invoke methods (JSR 292) |
628 static SymbolPropertyTable* _invoke_method_table; | |
629 | |
0 | 630 public: |
631 // for VM_CounterDecay iteration support | |
632 friend class CounterDecay; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
633 static Klass* try_get_next_class(); |
0 | 634 |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
635 protected: |
0 | 636 static void validate_protection_domain(instanceKlassHandle klass, |
637 Handle class_loader, | |
638 Handle protection_domain, TRAPS); | |
639 | |
640 friend class VM_PopulateDumpSharedSpace; | |
641 friend class TraversePlaceholdersClosure; | |
642 static Dictionary* dictionary() { return _dictionary; } | |
643 static Dictionary* shared_dictionary() { return _shared_dictionary; } | |
644 static PlaceholderTable* placeholders() { return _placeholders; } | |
645 static LoaderConstraintTable* constraints() { return _loader_constraints; } | |
646 static ResolutionErrorTable* resolution_errors() { return _resolution_errors; } | |
710 | 647 static SymbolPropertyTable* invoke_method_table() { return _invoke_method_table; } |
0 | 648 |
649 // Basic loading operations | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
650 static Klass* resolve_instance_class_or_null(Symbol* class_name, Handle class_loader, Handle protection_domain, TRAPS); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
651 static Klass* resolve_array_class_or_null(Symbol* class_name, Handle class_loader, Handle protection_domain, TRAPS); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
652 static instanceKlassHandle handle_parallel_super_load(Symbol* class_name, Symbol* supername, Handle class_loader, Handle protection_domain, Handle lockObject, TRAPS); |
0 | 653 // Wait on SystemDictionary_lock; unlocks lockObject before |
654 // waiting; relocks lockObject with correct recursion count | |
655 // after waiting, but before reentering SystemDictionary_lock | |
656 // to preserve lock order semantics. | |
657 static void double_lock_wait(Handle lockObject, TRAPS); | |
658 static void define_instance_class(instanceKlassHandle k, TRAPS); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
659 static instanceKlassHandle find_or_define_instance_class(Symbol* class_name, |
0 | 660 Handle class_loader, |
661 instanceKlassHandle k, TRAPS); | |
662 static instanceKlassHandle load_shared_class(instanceKlassHandle ik, | |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
663 Handle class_loader, |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
664 Handle protection_domain, |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
665 TRAPS); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
666 static instanceKlassHandle load_instance_class(Symbol* class_name, Handle class_loader, TRAPS); |
0 | 667 static Handle compute_loader_lock_object(Handle class_loader, TRAPS); |
668 static void check_loader_lock_contention(Handle loader_lock, TRAPS); | |
514 | 669 static bool is_parallelCapable(Handle class_loader); |
1075
a75edfd400ea
6893504: LinkageError for bootstrap duplicate class definitions.
acorn
parents:
973
diff
changeset
|
670 static bool is_parallelDefine(Handle class_loader); |
0 | 671 |
8866
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8751
diff
changeset
|
672 public: |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
673 static instanceKlassHandle load_shared_class(Symbol* class_name, |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
674 Handle class_loader, |
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
675 TRAPS); |
8866
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8751
diff
changeset
|
676 static bool is_ext_class_loader(Handle class_loader); |
16885e702c88
7198429: need checked categorization of caller-sensitive methods in the JDK
twisti
parents:
8751
diff
changeset
|
677 |
20375
6e0cb14ce59b
8046070: Class Data Sharing clean up and refactoring
iklam
parents:
20278
diff
changeset
|
678 protected: |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
679 static Klass* find_shared_class(Symbol* class_name); |
0 | 680 |
681 // Setup link to hierarchy | |
682 static void add_to_hierarchy(instanceKlassHandle k, TRAPS); | |
683 | |
10405 | 684 // event based tracing |
13400
86e6d691f2e1
8028128: Add a type safe alternative for working with counter based data
mgronlun
parents:
13385
diff
changeset
|
685 static void post_class_load_event(const Ticks& start_time, instanceKlassHandle k, |
10405 | 686 Handle initiating_loader); |
0 | 687 // We pass in the hashtable index so we can calculate it outside of |
688 // the SystemDictionary_lock. | |
689 | |
690 // Basic find on loaded classes | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
691 static Klass* find_class(int index, unsigned int hash, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
692 Symbol* name, ClassLoaderData* loader_data); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
693 static Klass* find_class(Symbol* class_name, ClassLoaderData* loader_data); |
0 | 694 |
695 // Basic find on classes in the midst of being loaded | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
696 static Symbol* find_placeholder(Symbol* name, ClassLoaderData* loader_data); |
0 | 697 |
698 // Updating entry in dictionary | |
699 // Add a completely loaded class | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
700 static void add_klass(int index, Symbol* class_name, |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
701 ClassLoaderData* loader_data, KlassHandle obj); |
0 | 702 |
703 // Add a placeholder for a class being loaded | |
704 static void add_placeholder(int index, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
705 Symbol* class_name, |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
706 ClassLoaderData* loader_data); |
0 | 707 static void remove_placeholder(int index, |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
708 Symbol* class_name, |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
709 ClassLoaderData* loader_data); |
0 | 710 |
711 // Performs cleanups after resolve_super_or_fail. This typically needs | |
712 // to be called on failure. | |
713 // Won't throw, but can block. | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2129
diff
changeset
|
714 static void resolution_cleanups(Symbol* class_name, |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
715 ClassLoaderData* loader_data, |
0 | 716 TRAPS); |
717 | |
718 // Initialization | |
719 static void initialize_preloaded_classes(TRAPS); | |
720 | |
721 // Class loader constraints | |
722 static void check_constraints(int index, unsigned int hash, | |
723 instanceKlassHandle k, Handle loader, | |
724 bool defining, TRAPS); | |
725 static void update_dictionary(int d_index, unsigned int d_hash, | |
726 int p_index, unsigned int p_hash, | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
727 instanceKlassHandle k, Handle loader, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
728 TRAPS); |
0 | 729 |
730 // Variables holding commonly used klasses (preloaded) | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
731 static Klass* _well_known_klasses[]; |
0 | 732 |
733 // Lazily loaded klasses | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
734 static Klass* volatile _abstract_ownable_synchronizer_klass; |
0 | 735 |
132
60b728ec77c1
6652736: well known classes in system dictionary are inefficiently processed
jrose
parents:
0
diff
changeset
|
736 // table of box klasses (int_klass, etc.) |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6266
diff
changeset
|
737 static Klass* _box_klasses[T_VOID+1]; |
0 | 738 |
739 static oop _java_system_loader; | |
22298 | 740 #if INCLUDE_JVMCI |
21559
be896a1983c0
recast all Graal native code as JVMCI code (JBS:GRAAL-53)
Doug Simon <doug.simon@oracle.com>
parents:
21556
diff
changeset
|
741 static oop _jvmci_loader; |
16395
ad431bf0de07
added support to load classes from graal.jar with a separate class loader
Doug Simon <doug.simon@oracle.com>
parents:
16006
diff
changeset
|
742 #endif |
0 | 743 |
744 static bool _has_loadClassInternal; | |
745 static bool _has_checkPackageAccess; | |
746 }; | |
665
c89f86385056
6814659: separable cleanups and subroutines for 6655638
jrose
parents:
579
diff
changeset
|
747 |
1972 | 748 #endif // SHARE_VM_CLASSFILE_SYSTEMDICTIONARY_HPP |