Mercurial > hg > graal-compiler
annotate src/share/vm/oops/klass.cpp @ 7168:73e64867adb7
8003690: Example code in JVMTI GetStackTrace documentation is broken
Summary: Fixed to minor errors in example code
Reviewed-by: sspitsyn, dholmes
author | mikael |
---|---|
date | Wed, 21 Nov 2012 09:02:13 -0800 |
parents | 070d523b96a7 |
children | 2cb439954abf 90273fc0a981 |
rev | line source |
---|---|
0 | 1 /* |
5972
9a9bb0010c91
7156764: Remove unused size parameter from some CollectedHeap methods
brutisso
parents:
4860
diff
changeset
|
2 * Copyright (c) 1997, 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 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1155
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1155
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:
1155
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
26 #include "classfile/javaClasses.hpp" |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
27 #include "classfile/dictionary.hpp" |
1972 | 28 #include "classfile/systemDictionary.hpp" |
29 #include "classfile/vmSymbols.hpp" | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
30 #include "gc_implementation/shared/markSweep.inline.hpp" |
1972 | 31 #include "gc_interface/collectedHeap.inline.hpp" |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
32 #include "memory/metadataFactory.hpp" |
1972 | 33 #include "memory/oopFactory.hpp" |
34 #include "memory/resourceArea.hpp" | |
35 #include "oops/instanceKlass.hpp" | |
36 #include "oops/klass.inline.hpp" | |
37 #include "oops/oop.inline2.hpp" | |
38 #include "runtime/atomic.hpp" | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
39 #include "utilities/stack.hpp" |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
40 #ifndef SERIALGC |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
41 #include "gc_implementation/parallelScavenge/psParallelCompact.hpp" |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
42 #include "gc_implementation/parallelScavenge/psPromotionManager.hpp" |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
43 #include "gc_implementation/parallelScavenge/psScavenge.hpp" |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
44 #endif |
0 | 45 |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
46 void Klass::set_name(Symbol* n) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
47 _name = n; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
48 if (_name != NULL) _name->increment_refcount(); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
49 } |
0 | 50 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
51 bool Klass::is_subclass_of(Klass* k) const { |
0 | 52 // Run up the super chain and check |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
53 if (this == k) return true; |
0 | 54 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
55 Klass* t = const_cast<Klass*>(this)->super(); |
0 | 56 |
57 while (t != NULL) { | |
58 if (t == k) return true; | |
6983 | 59 t = t->super(); |
0 | 60 } |
61 return false; | |
62 } | |
63 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
64 bool Klass::search_secondary_supers(Klass* k) const { |
0 | 65 // Put some extra logic here out-of-line, before the search proper. |
66 // This cuts down the size of the inline method. | |
67 | |
68 // This is necessary, since I am never in my own secondary_super list. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
69 if (this == k) |
0 | 70 return true; |
71 // Scan the array-of-objects for a match | |
72 int cnt = secondary_supers()->length(); | |
73 for (int i = 0; i < cnt; i++) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
74 if (secondary_supers()->at(i) == k) { |
0 | 75 ((Klass*)this)->set_secondary_super_cache(k); |
76 return true; | |
77 } | |
78 } | |
79 return false; | |
80 } | |
81 | |
82 // Return self, except for abstract classes with exactly 1 | |
83 // implementor. Then return the 1 concrete implementation. | |
84 Klass *Klass::up_cast_abstract() { | |
85 Klass *r = this; | |
86 while( r->is_abstract() ) { // Receiver is abstract? | |
87 Klass *s = r->subklass(); // Check for exactly 1 subklass | |
88 if( !s || s->next_sibling() ) // Oops; wrong count; give up | |
89 return this; // Return 'this' as a no-progress flag | |
90 r = s; // Loop till find concrete class | |
91 } | |
92 return r; // Return the 1 concrete class | |
93 } | |
94 | |
605 | 95 // Find LCA in class hierarchy |
0 | 96 Klass *Klass::LCA( Klass *k2 ) { |
97 Klass *k1 = this; | |
98 while( 1 ) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
99 if( k1->is_subtype_of(k2) ) return k2; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
100 if( k2->is_subtype_of(k1) ) return k1; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
101 k1 = k1->super(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
102 k2 = k2->super(); |
0 | 103 } |
104 } | |
105 | |
106 | |
107 void Klass::check_valid_for_instantiation(bool throwError, TRAPS) { | |
108 ResourceMark rm(THREAD); | |
109 THROW_MSG(throwError ? vmSymbols::java_lang_InstantiationError() | |
110 : vmSymbols::java_lang_InstantiationException(), external_name()); | |
111 } | |
112 | |
113 | |
114 void Klass::copy_array(arrayOop s, int src_pos, arrayOop d, int dst_pos, int length, TRAPS) { | |
115 THROW(vmSymbols::java_lang_ArrayStoreException()); | |
116 } | |
117 | |
118 | |
119 void Klass::initialize(TRAPS) { | |
120 ShouldNotReachHere(); | |
121 } | |
122 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
123 bool Klass::compute_is_subtype_of(Klass* k) { |
0 | 124 assert(k->is_klass(), "argument must be a class"); |
125 return is_subclass_of(k); | |
126 } | |
127 | |
128 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
129 Method* Klass::uncached_lookup_method(Symbol* name, Symbol* signature) const { |
0 | 130 #ifdef ASSERT |
131 tty->print_cr("Error: uncached_lookup_method called on a klass oop." | |
132 " Likely error: reflection method does not correctly" | |
133 " wrap return value in a mirror object."); | |
134 #endif | |
135 ShouldNotReachHere(); | |
136 return NULL; | |
137 } | |
138 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
139 void* Klass::operator new(size_t size, ClassLoaderData* loader_data, size_t word_size, TRAPS) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
140 return Metaspace::allocate(loader_data, word_size, /*read_only*/false, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
141 Metaspace::ClassType, CHECK_NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
142 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
143 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
144 Klass::Klass() { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
145 Klass* k = this; |
0 | 146 |
147 { // Preinitialize supertype information. | |
148 // A later call to initialize_supers() may update these settings: | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
149 set_super(NULL); |
0 | 150 for (juint i = 0; i < Klass::primary_super_limit(); i++) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
151 _primary_supers[i] = NULL; |
0 | 152 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
153 set_secondary_supers(NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
154 _primary_supers[0] = k; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
155 set_super_check_offset(in_bytes(primary_supers_offset())); |
0 | 156 } |
157 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
158 set_java_mirror(NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
159 set_modifier_flags(0); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
160 set_layout_helper(Klass::_lh_neutral_value); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
161 set_name(NULL); |
0 | 162 AccessFlags af; |
163 af.set_flags(0); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
164 set_access_flags(af); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
165 set_subklass(NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
166 set_next_sibling(NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
167 set_next_link(NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
168 set_alloc_count(0); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
169 TRACE_SET_KLASS_TRACE_ID(this, 0); |
0 | 170 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
171 set_prototype_header(markOopDesc::prototype()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
172 set_biased_lock_revocation_count(0); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
173 set_last_biased_lock_bulk_revocation_time(0); |
0 | 174 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
175 // The klass doesn't have any references at this point. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
176 clear_modified_oops(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
177 clear_accumulated_modified_oops(); |
0 | 178 } |
179 | |
180 jint Klass::array_layout_helper(BasicType etype) { | |
181 assert(etype >= T_BOOLEAN && etype <= T_OBJECT, "valid etype"); | |
182 // Note that T_ARRAY is not allowed here. | |
183 int hsize = arrayOopDesc::base_offset_in_bytes(etype); | |
29
d5fc211aea19
6633953: type2aelembytes{T_ADDRESS} should be 8 bytes in 64 bit VM
kvn
parents:
0
diff
changeset
|
184 int esize = type2aelembytes(etype); |
0 | 185 bool isobj = (etype == T_OBJECT); |
186 int tag = isobj ? _lh_array_tag_obj_value : _lh_array_tag_type_value; | |
187 int lh = array_layout_helper(tag, hsize, etype, exact_log2(esize)); | |
188 | |
189 assert(lh < (int)_lh_neutral_value, "must look like an array layout"); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
190 assert(layout_helper_is_array(lh), "correct kind"); |
0 | 191 assert(layout_helper_is_objArray(lh) == isobj, "correct kind"); |
192 assert(layout_helper_is_typeArray(lh) == !isobj, "correct kind"); | |
193 assert(layout_helper_header_size(lh) == hsize, "correct decode"); | |
194 assert(layout_helper_element_type(lh) == etype, "correct decode"); | |
195 assert(1 << layout_helper_log2_element_size(lh) == esize, "correct decode"); | |
196 | |
197 return lh; | |
198 } | |
199 | |
200 bool Klass::can_be_primary_super_slow() const { | |
201 if (super() == NULL) | |
202 return true; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
203 else if (super()->super_depth() >= primary_super_limit()-1) |
0 | 204 return false; |
205 else | |
206 return true; | |
207 } | |
208 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
209 void Klass::initialize_supers(Klass* k, TRAPS) { |
0 | 210 if (FastSuperclassLimit == 0) { |
211 // None of the other machinery matters. | |
212 set_super(k); | |
213 return; | |
214 } | |
215 if (k == NULL) { | |
216 set_super(NULL); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
217 _primary_supers[0] = this; |
0 | 218 assert(super_depth() == 0, "Object must already be initialized properly"); |
1142 | 219 } else if (k != super() || k == SystemDictionary::Object_klass()) { |
220 assert(super() == NULL || super() == SystemDictionary::Object_klass(), | |
0 | 221 "initialize this only once to a non-trivial value"); |
222 set_super(k); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
223 Klass* sup = k; |
0 | 224 int sup_depth = sup->super_depth(); |
225 juint my_depth = MIN2(sup_depth + 1, (int)primary_super_limit()); | |
226 if (!can_be_primary_super_slow()) | |
227 my_depth = primary_super_limit(); | |
228 for (juint i = 0; i < my_depth; i++) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
229 _primary_supers[i] = sup->_primary_supers[i]; |
0 | 230 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
231 Klass* *super_check_cell; |
0 | 232 if (my_depth < primary_super_limit()) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
233 _primary_supers[my_depth] = this; |
0 | 234 super_check_cell = &_primary_supers[my_depth]; |
235 } else { | |
236 // Overflow of the primary_supers array forces me to be secondary. | |
237 super_check_cell = &_secondary_super_cache; | |
238 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
239 set_super_check_offset((address)super_check_cell - (address) this); |
0 | 240 |
241 #ifdef ASSERT | |
242 { | |
243 juint j = super_depth(); | |
244 assert(j == my_depth, "computed accessor gets right answer"); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
245 Klass* t = this; |
6983 | 246 while (!t->can_be_primary_super()) { |
247 t = t->super(); | |
248 j = t->super_depth(); | |
0 | 249 } |
250 for (juint j1 = j+1; j1 < primary_super_limit(); j1++) { | |
251 assert(primary_super_of_depth(j1) == NULL, "super list padding"); | |
252 } | |
253 while (t != NULL) { | |
254 assert(primary_super_of_depth(j) == t, "super list initialization"); | |
6983 | 255 t = t->super(); |
0 | 256 --j; |
257 } | |
258 assert(j == (juint)-1, "correct depth count"); | |
259 } | |
260 #endif | |
261 } | |
262 | |
263 if (secondary_supers() == NULL) { | |
264 KlassHandle this_kh (THREAD, this); | |
265 | |
266 // Now compute the list of secondary supertypes. | |
267 // Secondaries can occasionally be on the super chain, | |
268 // if the inline "_primary_supers" array overflows. | |
269 int extras = 0; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
270 Klass* p; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
271 for (p = super(); !(p == NULL || p->can_be_primary_super()); p = p->super()) { |
0 | 272 ++extras; |
273 } | |
274 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
275 ResourceMark rm(THREAD); // need to reclaim GrowableArrays allocated below |
0 | 276 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
277 // Compute the "real" non-extra secondaries. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
278 GrowableArray<Klass*>* secondaries = compute_secondary_supers(extras); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
279 if (secondaries == NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
280 // secondary_supers set by compute_secondary_supers |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
281 return; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
282 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
283 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
284 GrowableArray<Klass*>* primaries = new GrowableArray<Klass*>(extras); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
285 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
286 for (p = this_kh->super(); !(p == NULL || p->can_be_primary_super()); p = p->super()) { |
0 | 287 int i; // Scan for overflow primaries being duplicates of 2nd'arys |
288 | |
289 // This happens frequently for very deeply nested arrays: the | |
290 // primary superclass chain overflows into the secondary. The | |
291 // secondary list contains the element_klass's secondaries with | |
292 // an extra array dimension added. If the element_klass's | |
293 // secondary list already contains some primary overflows, they | |
294 // (with the extra level of array-ness) will collide with the | |
295 // normal primary superclass overflows. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
296 for( i = 0; i < secondaries->length(); i++ ) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
297 if( secondaries->at(i) == p ) |
0 | 298 break; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
299 } |
0 | 300 if( i < secondaries->length() ) |
301 continue; // It's a dup, don't put it in | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
302 primaries->push(p); |
0 | 303 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
304 // Combine the two arrays into a metadata object to pack the array. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
305 // The primaries are added in the reverse order, then the secondaries. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
306 int new_length = primaries->length() + secondaries->length(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
307 Array<Klass*>* s2 = MetadataFactory::new_array<Klass*>( |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
308 class_loader_data(), new_length, CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
309 int fill_p = primaries->length(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
310 for (int j = 0; j < fill_p; j++) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
311 s2->at_put(j, primaries->pop()); // add primaries in reverse order. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
312 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
313 for( int j = 0; j < secondaries->length(); j++ ) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
314 s2->at_put(j+fill_p, secondaries->at(j)); // add secondaries on the end. |
0 | 315 } |
316 | |
317 #ifdef ASSERT | |
318 // We must not copy any NULL placeholders left over from bootstrap. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
319 for (int j = 0; j < s2->length(); j++) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
320 assert(s2->at(j) != NULL, "correct bootstrapping order"); |
0 | 321 } |
322 #endif | |
323 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
324 this_kh->set_secondary_supers(s2); |
0 | 325 } |
326 } | |
327 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
328 GrowableArray<Klass*>* Klass::compute_secondary_supers(int num_extra_slots) { |
0 | 329 assert(num_extra_slots == 0, "override for complex klasses"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
330 set_secondary_supers(Universe::the_empty_klass_array()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
331 return NULL; |
0 | 332 } |
333 | |
334 | |
335 Klass* Klass::subklass() const { | |
6983 | 336 return _subklass == NULL ? NULL : _subklass; |
0 | 337 } |
338 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
339 InstanceKlass* Klass::superklass() const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
340 assert(super() == NULL || super()->oop_is_instance(), "must be instance klass"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
341 return _super == NULL ? NULL : InstanceKlass::cast(_super); |
0 | 342 } |
343 | |
344 Klass* Klass::next_sibling() const { | |
6983 | 345 return _next_sibling == NULL ? NULL : _next_sibling; |
0 | 346 } |
347 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
348 void Klass::set_subklass(Klass* s) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
349 assert(s != this, "sanity check"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
350 _subklass = s; |
0 | 351 } |
352 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
353 void Klass::set_next_sibling(Klass* s) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
354 assert(s != this, "sanity check"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
355 _next_sibling = s; |
0 | 356 } |
357 | |
358 void Klass::append_to_sibling_list() { | |
6867 | 359 debug_only(verify();) |
0 | 360 // add ourselves to superklass' subklass list |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
361 InstanceKlass* super = superklass(); |
0 | 362 if (super == NULL) return; // special case: class Object |
6867 | 363 assert((!super->is_interface() // interfaces cannot be supers |
0 | 364 && (super->superklass() == NULL || !is_interface())), |
365 "an interface can only be a subklass of Object"); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
366 Klass* prev_first_subklass = super->subklass_oop(); |
0 | 367 if (prev_first_subklass != NULL) { |
368 // set our sibling to be the superklass' previous first subklass | |
369 set_next_sibling(prev_first_subklass); | |
370 } | |
371 // make ourselves the superklass' first subklass | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
372 super->set_subklass(this); |
6867 | 373 debug_only(verify();) |
0 | 374 } |
375 | |
376 void Klass::remove_from_sibling_list() { | |
377 // remove receiver from sibling list | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
378 InstanceKlass* super = superklass(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
379 assert(super != NULL || this == SystemDictionary::Object_klass(), "should have super"); |
0 | 380 if (super == NULL) return; // special case: class Object |
381 if (super->subklass() == this) { | |
382 // first subklass | |
383 super->set_subklass(_next_sibling); | |
384 } else { | |
385 Klass* sib = super->subklass(); | |
386 while (sib->next_sibling() != this) { | |
387 sib = sib->next_sibling(); | |
388 }; | |
389 sib->set_next_sibling(_next_sibling); | |
390 } | |
391 } | |
392 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
393 bool Klass::is_loader_alive(BoolObjectClosure* is_alive) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
394 assert(is_metadata(), "p is not meta-data"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
395 assert(ClassLoaderDataGraph::contains((address)this), "is in the metaspace"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
396 // The class is alive iff the class loader is alive. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
397 oop loader = class_loader(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
398 return (loader == NULL) || is_alive->do_object_b(loader); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
399 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
400 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
401 void Klass::clean_weak_klass_links(BoolObjectClosure* is_alive) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
402 if (!ClassUnloading) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
403 return; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
404 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
405 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
406 Klass* root = SystemDictionary::Object_klass(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
407 Stack<Klass*, mtGC> stack; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
408 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
409 stack.push(root); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
410 while (!stack.is_empty()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
411 Klass* current = stack.pop(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
412 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
413 assert(current->is_loader_alive(is_alive), "just checking, this should be live"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
414 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
415 // Find and set the first alive subklass |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
416 Klass* sub = current->subklass_oop(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
417 while (sub != NULL && !sub->is_loader_alive(is_alive)) { |
0 | 418 #ifndef PRODUCT |
419 if (TraceClassUnloading && WizardMode) { | |
420 ResourceMark rm; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
421 tty->print_cr("[Unlinking class (subclass) %s]", sub->external_name()); |
0 | 422 } |
423 #endif | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
424 sub = sub->next_sibling_oop(); |
0 | 425 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
426 current->set_subklass(sub); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
427 if (sub != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
428 stack.push(sub); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
429 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
430 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
431 // Find and set the first alive sibling |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
432 Klass* sibling = current->next_sibling_oop(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
433 while (sibling != NULL && !sibling->is_loader_alive(is_alive)) { |
0 | 434 if (TraceClassUnloading && WizardMode) { |
435 ResourceMark rm; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
436 tty->print_cr("[Unlinking class (sibling) %s]", sibling->external_name()); |
0 | 437 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
438 sibling = sibling->next_sibling_oop(); |
0 | 439 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
440 current->set_next_sibling(sibling); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
441 if (sibling != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
442 stack.push(sibling); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
443 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
444 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
445 // Clean the implementors list and method data. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
446 if (current->oop_is_instance()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
447 InstanceKlass* ik = InstanceKlass::cast(current); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
448 ik->clean_implementors_list(is_alive); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
449 ik->clean_method_data(is_alive); |
0 | 450 } |
451 } | |
452 } | |
453 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
454 void Klass::klass_update_barrier_set(oop v) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
455 record_modified_oops(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
456 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
457 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
458 void Klass::klass_update_barrier_set_pre(void* p, oop v) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
459 // This barrier used by G1, where it's used remember the old oop values, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
460 // so that we don't forget any objects that were live at the snapshot at |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
461 // the beginning. This function is only used when we write oops into |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
462 // Klasses. Since the Klasses are used as roots in G1, we don't have to |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
463 // do anything here. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
464 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
465 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
466 void Klass::klass_oop_store(oop* p, oop v) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
467 assert(!Universe::heap()->is_in_reserved((void*)p), "Should store pointer into metadata"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
468 assert(v == NULL || Universe::heap()->is_in_reserved((void*)v), "Should store pointer to an object"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
469 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
470 // do the store |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
471 if (always_do_update_barrier) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
472 klass_oop_store((volatile oop*)p, v); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
473 } else { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
474 klass_update_barrier_set_pre((void*)p, v); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
475 *p = v; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
476 klass_update_barrier_set(v); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
477 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
478 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
479 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
480 void Klass::klass_oop_store(volatile oop* p, oop v) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
481 assert(!Universe::heap()->is_in_reserved((void*)p), "Should store pointer into metadata"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
482 assert(v == NULL || Universe::heap()->is_in_reserved((void*)v), "Should store pointer to an object"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
483 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
484 klass_update_barrier_set_pre((void*)p, v); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
485 OrderAccess::release_store_ptr(p, v); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
486 klass_update_barrier_set(v); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
487 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
488 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
489 void Klass::oops_do(OopClosure* cl) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
490 cl->do_oop(&_java_mirror); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
491 } |
0 | 492 |
493 void Klass::remove_unshareable_info() { | |
494 set_subklass(NULL); | |
495 set_next_sibling(NULL); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
496 // Clear the java mirror |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
497 set_java_mirror(NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
498 set_next_link(NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
499 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
500 // Null out class_loader_data because we don't share that yet. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
501 set_class_loader_data(NULL); |
0 | 502 } |
503 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
504 void Klass::restore_unshareable_info(TRAPS) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
505 ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
506 // Restore class_loader_data to the null class loader data |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
507 set_class_loader_data(loader_data); |
0 | 508 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
509 // Add to null class loader list first before creating the mirror |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
510 // (same order as class file parsing) |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
511 loader_data->add_class(this); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
512 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
513 // Recreate the class mirror |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
514 java_lang_Class::create_mirror(this, CHECK); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
515 } |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
516 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
517 Klass* Klass::array_klass_or_null(int rank) { |
0 | 518 EXCEPTION_MARK; |
519 // No exception can be thrown by array_klass_impl when called with or_null == true. | |
520 // (In anycase, the execption mark will fail if it do so) | |
521 return array_klass_impl(true, rank, THREAD); | |
522 } | |
523 | |
524 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
525 Klass* Klass::array_klass_or_null() { |
0 | 526 EXCEPTION_MARK; |
527 // No exception can be thrown by array_klass_impl when called with or_null == true. | |
528 // (In anycase, the execption mark will fail if it do so) | |
529 return array_klass_impl(true, THREAD); | |
530 } | |
531 | |
532 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
533 Klass* Klass::array_klass_impl(bool or_null, int rank, TRAPS) { |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6725
diff
changeset
|
534 fatal("array_klass should be dispatched to InstanceKlass, ObjArrayKlass or TypeArrayKlass"); |
0 | 535 return NULL; |
536 } | |
537 | |
538 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
539 Klass* Klass::array_klass_impl(bool or_null, TRAPS) { |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6725
diff
changeset
|
540 fatal("array_klass should be dispatched to InstanceKlass, ObjArrayKlass or TypeArrayKlass"); |
0 | 541 return NULL; |
542 } | |
543 | |
544 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
545 void Klass::with_array_klasses_do(void f(Klass* k)) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
546 f(this); |
0 | 547 } |
548 | |
549 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
550 oop Klass::class_loader() const { return class_loader_data()->class_loader(); } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
551 |
0 | 552 const char* Klass::external_name() const { |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
553 if (oop_is_instance()) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
554 InstanceKlass* ik = (InstanceKlass*) this; |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
555 if (ik->is_anonymous()) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2177
diff
changeset
|
556 assert(EnableInvokeDynamic, ""); |
431
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
557 intptr_t hash = ik->java_mirror()->identity_hash(); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
558 char hash_buf[40]; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
559 sprintf(hash_buf, "/" UINTX_FORMAT, (uintx)hash); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
560 size_t hash_len = strlen(hash_buf); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
561 |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
562 size_t result_len = name()->utf8_length(); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
563 char* result = NEW_RESOURCE_ARRAY(char, result_len + hash_len + 1); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
564 name()->as_klass_external_name(result, (int) result_len + 1); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
565 assert(strlen(result) == result_len, ""); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
566 strcpy(result + result_len, hash_buf); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
567 assert(strlen(result) == result_len + hash_len, ""); |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
568 return result; |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
569 } |
a45484ea312d
6653858: dynamic languages need to be able to load anonymous classes
jrose
parents:
196
diff
changeset
|
570 } |
1039
987e948ebbc8
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
605
diff
changeset
|
571 if (name() == NULL) return "<unknown>"; |
0 | 572 return name()->as_klass_external_name(); |
573 } | |
574 | |
575 | |
1039
987e948ebbc8
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
605
diff
changeset
|
576 const char* Klass::signature_name() const { |
987e948ebbc8
6815692: method handle code needs some cleanup (post-6655638)
jrose
parents:
605
diff
changeset
|
577 if (name() == NULL) return "<unknown>"; |
0 | 578 return name()->as_C_string(); |
579 } | |
580 | |
581 // Unless overridden, modifier_flags is 0. | |
582 jint Klass::compute_modifier_flags(TRAPS) const { | |
583 return 0; | |
584 } | |
585 | |
586 int Klass::atomic_incr_biased_lock_revocation_count() { | |
587 return (int) Atomic::add(1, &_biased_lock_revocation_count); | |
588 } | |
589 | |
590 // Unless overridden, jvmti_class_status has no flags set. | |
591 jint Klass::jvmti_class_status() const { | |
592 return 0; | |
593 } | |
594 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
595 |
0 | 596 // Printing |
597 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
598 void Klass::print_on(outputStream* st) const { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
599 ResourceMark rm; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
600 // print title |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
601 st->print("%s", internal_name()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
602 print_address_on(st); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
603 st->cr(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
604 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
605 |
0 | 606 void Klass::oop_print_on(oop obj, outputStream* st) { |
607 ResourceMark rm; | |
608 // print title | |
609 st->print_cr("%s ", internal_name()); | |
610 obj->print_address_on(st); | |
611 | |
612 if (WizardMode) { | |
613 // print header | |
614 obj->mark()->print_on(st); | |
615 } | |
616 | |
617 // print class | |
618 st->print(" - klass: "); | |
619 obj->klass()->print_value_on(st); | |
620 st->cr(); | |
621 } | |
622 | |
623 void Klass::oop_print_value_on(oop obj, outputStream* st) { | |
624 // print title | |
625 ResourceMark rm; // Cannot print in debug mode without this | |
626 st->print("%s", internal_name()); | |
627 obj->print_address_on(st); | |
628 } | |
629 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
630 |
0 | 631 // Verification |
632 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
633 void Klass::verify_on(outputStream* st) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
634 guarantee(!Universe::heap()->is_in_reserved(this), "Shouldn't be"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
635 guarantee(this->is_metadata(), "should be in metaspace"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
636 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
637 assert(ClassLoaderDataGraph::contains((address)this), "Should be"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
638 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
639 guarantee(this->is_klass(),"should be klass"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
640 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
641 if (super() != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
642 guarantee(super()->is_metadata(), "should be in metaspace"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
643 guarantee(super()->is_klass(), "should be klass"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
644 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
645 if (secondary_super_cache() != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
646 Klass* ko = secondary_super_cache(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
647 guarantee(ko->is_metadata(), "should be in metaspace"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
648 guarantee(ko->is_klass(), "should be klass"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
649 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
650 for ( uint i = 0; i < primary_super_limit(); i++ ) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
651 Klass* ko = _primary_supers[i]; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
652 if (ko != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
653 guarantee(ko->is_metadata(), "should be in metaspace"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
654 guarantee(ko->is_klass(), "should be klass"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
655 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
656 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
657 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
658 if (java_mirror() != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
659 guarantee(java_mirror()->is_oop(), "should be instance"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
660 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
661 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
662 |
0 | 663 void Klass::oop_verify_on(oop obj, outputStream* st) { |
664 guarantee(obj->is_oop(), "should be oop"); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
665 guarantee(obj->klass()->is_metadata(), "should not be in Java heap"); |
0 | 666 guarantee(obj->klass()->is_klass(), "klass field is not a klass"); |
667 } | |
668 | |
669 #ifndef PRODUCT | |
670 | |
671 void Klass::verify_vtable_index(int i) { | |
672 if (oop_is_instance()) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
673 assert(i>=0 && i<((InstanceKlass*)this)->vtable_length()/vtableEntry::size(), "index out of bounds"); |
0 | 674 } else { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6008
diff
changeset
|
675 assert(oop_is_array(), "Must be"); |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6725
diff
changeset
|
676 assert(i>=0 && i<((ArrayKlass*)this)->vtable_length()/vtableEntry::size(), "index out of bounds"); |
0 | 677 } |
678 } | |
679 | |
680 #endif |