Mercurial > hg > graal-jvmci-8
annotate src/share/vm/memory/universe.cpp @ 11017:ce9ecec70f99
Merge
author | chegar |
---|---|
date | Thu, 23 May 2013 12:44:18 +0100 |
parents | 7ee0d5c53c78 92ef81e2f571 |
children | eaf3742822ec |
rev | line source |
---|---|
0 | 1 /* |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7187
diff
changeset
|
2 * Copyright (c) 1997, 2013, 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:
1507
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1507
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:
1507
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/classLoader.hpp" | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
27 #include "classfile/classLoaderData.hpp" |
1972 | 28 #include "classfile/javaClasses.hpp" |
29 #include "classfile/symbolTable.hpp" | |
30 #include "classfile/systemDictionary.hpp" | |
31 #include "classfile/vmSymbols.hpp" | |
32 #include "code/codeCache.hpp" | |
33 #include "code/dependencies.hpp" | |
34 #include "gc_interface/collectedHeap.inline.hpp" | |
35 #include "interpreter/interpreter.hpp" | |
36 #include "memory/cardTableModRefBS.hpp" | |
37 #include "memory/gcLocker.inline.hpp" | |
38 #include "memory/genCollectedHeap.hpp" | |
39 #include "memory/genRemSet.hpp" | |
40 #include "memory/generation.hpp" | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
41 #include "memory/metadataFactory.hpp" |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
42 #include "memory/metaspaceShared.hpp" |
1972 | 43 #include "memory/oopFactory.hpp" |
44 #include "memory/space.hpp" | |
45 #include "memory/universe.hpp" | |
46 #include "memory/universe.inline.hpp" | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
47 #include "oops/constantPool.hpp" |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
48 #include "oops/instanceClassLoaderKlass.hpp" |
1972 | 49 #include "oops/instanceKlass.hpp" |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2375
diff
changeset
|
50 #include "oops/instanceMirrorKlass.hpp" |
1972 | 51 #include "oops/instanceRefKlass.hpp" |
52 #include "oops/oop.inline.hpp" | |
53 #include "oops/typeArrayKlass.hpp" | |
54 #include "prims/jvmtiRedefineClassesTrace.hpp" | |
55 #include "runtime/aprofiler.hpp" | |
56 #include "runtime/arguments.hpp" | |
57 #include "runtime/deoptimization.hpp" | |
58 #include "runtime/fprofiler.hpp" | |
59 #include "runtime/handles.inline.hpp" | |
60 #include "runtime/init.hpp" | |
61 #include "runtime/java.hpp" | |
62 #include "runtime/javaCalls.hpp" | |
63 #include "runtime/sharedRuntime.hpp" | |
64 #include "runtime/synchronizer.hpp" | |
7180
f34d701e952e
8003935: Simplify the needed includes for using Thread::current()
stefank
parents:
6985
diff
changeset
|
65 #include "runtime/thread.inline.hpp" |
1972 | 66 #include "runtime/timer.hpp" |
67 #include "runtime/vm_operations.hpp" | |
68 #include "services/memoryService.hpp" | |
69 #include "utilities/copy.hpp" | |
70 #include "utilities/events.hpp" | |
71 #include "utilities/hashtable.inline.hpp" | |
72 #include "utilities/preserveException.hpp" | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
73 #include "utilities/macros.hpp" |
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
74 #if INCLUDE_ALL_GCS |
1972 | 75 #include "gc_implementation/concurrentMarkSweep/cmsAdaptiveSizePolicy.hpp" |
76 #include "gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.hpp" | |
77 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" | |
78 #include "gc_implementation/g1/g1CollectorPolicy.hpp" | |
79 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp" | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
80 #endif // INCLUDE_ALL_GCS |
0 | 81 |
82 // Known objects | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
83 Klass* Universe::_boolArrayKlassObj = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
84 Klass* Universe::_byteArrayKlassObj = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
85 Klass* Universe::_charArrayKlassObj = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
86 Klass* Universe::_intArrayKlassObj = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
87 Klass* Universe::_shortArrayKlassObj = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
88 Klass* Universe::_longArrayKlassObj = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
89 Klass* Universe::_singleArrayKlassObj = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
90 Klass* Universe::_doubleArrayKlassObj = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
91 Klass* Universe::_typeArrayKlassObjs[T_VOID+1] = { NULL /*, NULL...*/ }; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
92 Klass* Universe::_objectArrayKlassObj = NULL; |
481
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
93 oop Universe::_int_mirror = NULL; |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
94 oop Universe::_float_mirror = NULL; |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
95 oop Universe::_double_mirror = NULL; |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
96 oop Universe::_byte_mirror = NULL; |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
97 oop Universe::_bool_mirror = NULL; |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
98 oop Universe::_char_mirror = NULL; |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
99 oop Universe::_long_mirror = NULL; |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
100 oop Universe::_short_mirror = NULL; |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
101 oop Universe::_void_mirror = NULL; |
7d7a7c599c17
6578152: fill_region_with_object has usability and safety issues
jcoomes
parents:
453
diff
changeset
|
102 oop Universe::_mirrors[T_VOID+1] = { NULL /*, NULL...*/ }; |
0 | 103 oop Universe::_main_thread_group = NULL; |
104 oop Universe::_system_thread_group = NULL; | |
105 objArrayOop Universe::_the_empty_class_klass_array = NULL; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
106 Array<Klass*>* Universe::_the_array_interfaces_array = NULL; |
1080
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
107 oop Universe::_the_null_string = NULL; |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
108 oop Universe::_the_min_jint_string = NULL; |
0 | 109 LatestMethodOopCache* Universe::_finalizer_register_cache = NULL; |
6751
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
110 LatestMethodOopCache* Universe::_loader_addClass_cache = NULL; |
11010 | 111 LatestMethodOopCache* Universe::_pd_implies_cache = NULL; |
0 | 112 ActiveMethodOopsCache* Universe::_reflect_invoke_cache = NULL; |
113 oop Universe::_out_of_memory_error_java_heap = NULL; | |
114 oop Universe::_out_of_memory_error_perm_gen = NULL; | |
115 oop Universe::_out_of_memory_error_array_size = NULL; | |
116 oop Universe::_out_of_memory_error_gc_overhead_limit = NULL; | |
117 objArrayOop Universe::_preallocated_out_of_memory_error_array = NULL; | |
118 volatile jint Universe::_preallocated_out_of_memory_error_avail_count = 0; | |
119 bool Universe::_verify_in_progress = false; | |
120 oop Universe::_null_ptr_exception_instance = NULL; | |
121 oop Universe::_arithmetic_exception_instance = NULL; | |
122 oop Universe::_virtual_machine_error_instance = NULL; | |
123 oop Universe::_vm_exception = NULL; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
124 Array<int>* Universe::_the_empty_int_array = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
125 Array<u2>* Universe::_the_empty_short_array = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
126 Array<Klass*>* Universe::_the_empty_klass_array = NULL; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
127 Array<Method*>* Universe::_the_empty_method_array = NULL; |
0 | 128 |
129 // These variables are guarded by FullGCALot_lock. | |
130 debug_only(objArrayOop Universe::_fullgc_alot_dummy_array = NULL;) | |
131 debug_only(int Universe::_fullgc_alot_dummy_next = 0;) | |
132 | |
133 // Heap | |
134 int Universe::_verify_count = 0; | |
135 | |
136 int Universe::_base_vtable_size = 0; | |
137 bool Universe::_bootstrapping = false; | |
138 bool Universe::_fully_initialized = false; | |
139 | |
140 size_t Universe::_heap_capacity_at_last_gc; | |
453
c96030fff130
6684579: SoftReference processing can be made more efficient
ysr
parents:
356
diff
changeset
|
141 size_t Universe::_heap_used_at_last_gc = 0; |
0 | 142 |
143 CollectedHeap* Universe::_collectedHeap = NULL; | |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
144 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
145 NarrowPtrStruct Universe::_narrow_oop = { NULL, 0, true }; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
146 NarrowPtrStruct Universe::_narrow_klass = { NULL, 0, true }; |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
147 address Universe::_narrow_ptrs_base; |
0 | 148 |
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
149 size_t Universe::_class_metaspace_size; |
0 | 150 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
151 void Universe::basic_type_classes_do(void f(Klass*)) { |
0 | 152 f(boolArrayKlassObj()); |
153 f(byteArrayKlassObj()); | |
154 f(charArrayKlassObj()); | |
155 f(intArrayKlassObj()); | |
156 f(shortArrayKlassObj()); | |
157 f(longArrayKlassObj()); | |
158 f(singleArrayKlassObj()); | |
159 f(doubleArrayKlassObj()); | |
160 } | |
161 | |
162 void Universe::oops_do(OopClosure* f, bool do_all) { | |
163 | |
164 f->do_oop((oop*) &_int_mirror); | |
165 f->do_oop((oop*) &_float_mirror); | |
166 f->do_oop((oop*) &_double_mirror); | |
167 f->do_oop((oop*) &_byte_mirror); | |
168 f->do_oop((oop*) &_bool_mirror); | |
169 f->do_oop((oop*) &_char_mirror); | |
170 f->do_oop((oop*) &_long_mirror); | |
171 f->do_oop((oop*) &_short_mirror); | |
172 f->do_oop((oop*) &_void_mirror); | |
173 | |
174 for (int i = T_BOOLEAN; i < T_VOID+1; i++) { | |
175 f->do_oop((oop*) &_mirrors[i]); | |
176 } | |
177 assert(_mirrors[0] == NULL && _mirrors[T_BOOLEAN - 1] == NULL, "checking"); | |
178 | |
179 f->do_oop((oop*)&_the_empty_class_klass_array); | |
1080
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
180 f->do_oop((oop*)&_the_null_string); |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
181 f->do_oop((oop*)&_the_min_jint_string); |
0 | 182 f->do_oop((oop*)&_out_of_memory_error_java_heap); |
183 f->do_oop((oop*)&_out_of_memory_error_perm_gen); | |
184 f->do_oop((oop*)&_out_of_memory_error_array_size); | |
185 f->do_oop((oop*)&_out_of_memory_error_gc_overhead_limit); | |
186 f->do_oop((oop*)&_preallocated_out_of_memory_error_array); | |
187 f->do_oop((oop*)&_null_ptr_exception_instance); | |
188 f->do_oop((oop*)&_arithmetic_exception_instance); | |
189 f->do_oop((oop*)&_virtual_machine_error_instance); | |
190 f->do_oop((oop*)&_main_thread_group); | |
191 f->do_oop((oop*)&_system_thread_group); | |
192 f->do_oop((oop*)&_vm_exception); | |
193 debug_only(f->do_oop((oop*)&_fullgc_alot_dummy_array);) | |
194 } | |
195 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
196 // Serialize metadata in and out of CDS archive, not oops. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
197 void Universe::serialize(SerializeClosure* f, bool do_all) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
198 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
199 f->do_ptr((void**)&_boolArrayKlassObj); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
200 f->do_ptr((void**)&_byteArrayKlassObj); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
201 f->do_ptr((void**)&_charArrayKlassObj); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
202 f->do_ptr((void**)&_intArrayKlassObj); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
203 f->do_ptr((void**)&_shortArrayKlassObj); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
204 f->do_ptr((void**)&_longArrayKlassObj); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
205 f->do_ptr((void**)&_singleArrayKlassObj); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
206 f->do_ptr((void**)&_doubleArrayKlassObj); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
207 f->do_ptr((void**)&_objectArrayKlassObj); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
208 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
209 { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
210 for (int i = 0; i < T_VOID+1; i++) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
211 if (_typeArrayKlassObjs[i] != NULL) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
212 assert(i >= T_BOOLEAN, "checking"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
213 f->do_ptr((void**)&_typeArrayKlassObjs[i]); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
214 } else if (do_all) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
215 f->do_ptr((void**)&_typeArrayKlassObjs[i]); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
216 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
217 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
218 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
219 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
220 f->do_ptr((void**)&_the_array_interfaces_array); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
221 f->do_ptr((void**)&_the_empty_int_array); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
222 f->do_ptr((void**)&_the_empty_short_array); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
223 f->do_ptr((void**)&_the_empty_method_array); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
224 f->do_ptr((void**)&_the_empty_klass_array); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
225 _finalizer_register_cache->serialize(f); |
6751
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
226 _loader_addClass_cache->serialize(f); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
227 _reflect_invoke_cache->serialize(f); |
11010 | 228 _pd_implies_cache->serialize(f); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
229 } |
0 | 230 |
231 void Universe::check_alignment(uintx size, uintx alignment, const char* name) { | |
232 if (size < alignment || size % alignment != 0) { | |
233 ResourceMark rm; | |
234 stringStream st; | |
7623
203f64878aab
7102489: RFE: cleanup jlong typedef on __APPLE__and _LLP64 systems.
hseigel
parents:
7187
diff
changeset
|
235 st.print("Size of %s (" UINTX_FORMAT " bytes) must be aligned to " UINTX_FORMAT " bytes", name, size, alignment); |
0 | 236 char* error = st.as_string(); |
237 vm_exit_during_initialization(error); | |
238 } | |
239 } | |
240 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
241 void initialize_basic_type_klass(Klass* k, TRAPS) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
242 Klass* ok = SystemDictionary::Object_klass(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
243 if (UseSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
244 assert(k->super() == ok, "u3"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
245 k->restore_unshareable_info(CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
246 } else { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
247 k->initialize_supers(ok, CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
248 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
249 k->append_to_sibling_list(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
250 } |
0 | 251 |
252 void Universe::genesis(TRAPS) { | |
253 ResourceMark rm; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
254 |
0 | 255 { FlagSetting fs(_bootstrapping, true); |
256 | |
257 { MutexLocker mc(Compile_lock); | |
258 | |
259 // determine base vtable size; without that we cannot create the array klasses | |
260 compute_base_vtable_size(); | |
261 | |
262 if (!UseSharedSpaces) { | |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
263 _boolArrayKlassObj = TypeArrayKlass::create_klass(T_BOOLEAN, sizeof(jboolean), CHECK); |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
264 _charArrayKlassObj = TypeArrayKlass::create_klass(T_CHAR, sizeof(jchar), CHECK); |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
265 _singleArrayKlassObj = TypeArrayKlass::create_klass(T_FLOAT, sizeof(jfloat), CHECK); |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
266 _doubleArrayKlassObj = TypeArrayKlass::create_klass(T_DOUBLE, sizeof(jdouble), CHECK); |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
267 _byteArrayKlassObj = TypeArrayKlass::create_klass(T_BYTE, sizeof(jbyte), CHECK); |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
268 _shortArrayKlassObj = TypeArrayKlass::create_klass(T_SHORT, sizeof(jshort), CHECK); |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
269 _intArrayKlassObj = TypeArrayKlass::create_klass(T_INT, sizeof(jint), CHECK); |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
270 _longArrayKlassObj = TypeArrayKlass::create_klass(T_LONG, sizeof(jlong), CHECK); |
0 | 271 |
272 _typeArrayKlassObjs[T_BOOLEAN] = _boolArrayKlassObj; | |
273 _typeArrayKlassObjs[T_CHAR] = _charArrayKlassObj; | |
274 _typeArrayKlassObjs[T_FLOAT] = _singleArrayKlassObj; | |
275 _typeArrayKlassObjs[T_DOUBLE] = _doubleArrayKlassObj; | |
276 _typeArrayKlassObjs[T_BYTE] = _byteArrayKlassObj; | |
277 _typeArrayKlassObjs[T_SHORT] = _shortArrayKlassObj; | |
278 _typeArrayKlassObjs[T_INT] = _intArrayKlassObj; | |
279 _typeArrayKlassObjs[T_LONG] = _longArrayKlassObj; | |
280 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
281 ClassLoaderData* null_cld = ClassLoaderData::the_null_class_loader_data(); |
0 | 282 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
283 _the_array_interfaces_array = MetadataFactory::new_array<Klass*>(null_cld, 2, NULL, CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
284 _the_empty_int_array = MetadataFactory::new_array<int>(null_cld, 0, CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
285 _the_empty_short_array = MetadataFactory::new_array<u2>(null_cld, 0, CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
286 _the_empty_method_array = MetadataFactory::new_array<Method*>(null_cld, 0, CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
287 _the_empty_klass_array = MetadataFactory::new_array<Klass*>(null_cld, 0, CHECK); |
0 | 288 } |
289 } | |
290 | |
291 vmSymbols::initialize(CHECK); | |
292 | |
293 SystemDictionary::initialize(CHECK); | |
294 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
295 Klass* ok = SystemDictionary::Object_klass(); |
0 | 296 |
1080
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
297 _the_null_string = StringTable::intern("null", CHECK); |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
298 _the_min_jint_string = StringTable::intern("-2147483648", CHECK); |
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
299 |
0 | 300 if (UseSharedSpaces) { |
301 // Verify shared interfaces array. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
302 assert(_the_array_interfaces_array->at(0) == |
1142 | 303 SystemDictionary::Cloneable_klass(), "u3"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
304 assert(_the_array_interfaces_array->at(1) == |
1142 | 305 SystemDictionary::Serializable_klass(), "u3"); |
0 | 306 } else { |
307 // Set up shared interfaces array. (Do this before supers are set up.) | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
308 _the_array_interfaces_array->at_put(0, SystemDictionary::Cloneable_klass()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
309 _the_array_interfaces_array->at_put(1, SystemDictionary::Serializable_klass()); |
0 | 310 } |
311 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
312 initialize_basic_type_klass(boolArrayKlassObj(), CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
313 initialize_basic_type_klass(charArrayKlassObj(), CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
314 initialize_basic_type_klass(singleArrayKlassObj(), CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
315 initialize_basic_type_klass(doubleArrayKlassObj(), CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
316 initialize_basic_type_klass(byteArrayKlassObj(), CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
317 initialize_basic_type_klass(shortArrayKlassObj(), CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
318 initialize_basic_type_klass(intArrayKlassObj(), CHECK); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
319 initialize_basic_type_klass(longArrayKlassObj(), CHECK); |
0 | 320 } // end of core bootstrapping |
321 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
322 // Maybe this could be lifted up now that object array can be initialized |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
323 // during the bootstrapping. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
324 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
325 // OLD |
0 | 326 // Initialize _objectArrayKlass after core bootstraping to make |
327 // sure the super class is set up properly for _objectArrayKlass. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
328 // --- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
329 // NEW |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
330 // Since some of the old system object arrays have been converted to |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
331 // ordinary object arrays, _objectArrayKlass will be loaded when |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
332 // SystemDictionary::initialize(CHECK); is run. See the extra check |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
333 // for Object_klass_loaded in objArrayKlassKlass::allocate_objArray_klass_impl. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
334 _objectArrayKlassObj = InstanceKlass:: |
1142 | 335 cast(SystemDictionary::Object_klass())->array_klass(1, CHECK); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
336 // OLD |
0 | 337 // Add the class to the class hierarchy manually to make sure that |
338 // its vtable is initialized after core bootstrapping is completed. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
339 // --- |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
340 // New |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
341 // Have already been initialized. |
6983 | 342 _objectArrayKlassObj->append_to_sibling_list(); |
0 | 343 |
344 // Compute is_jdk version flags. | |
345 // Only 1.3 or later has the java.lang.Shutdown class. | |
346 // Only 1.4 or later has the java.lang.CharSequence interface. | |
347 // Only 1.5 or later has the java.lang.management.MemoryUsage class. | |
242 | 348 if (JDK_Version::is_partially_initialized()) { |
349 uint8_t jdk_version; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
350 Klass* k = SystemDictionary::resolve_or_null( |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
351 vmSymbols::java_lang_management_MemoryUsage(), THREAD); |
0 | 352 CLEAR_PENDING_EXCEPTION; // ignore exceptions |
353 if (k == NULL) { | |
242 | 354 k = SystemDictionary::resolve_or_null( |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
355 vmSymbols::java_lang_CharSequence(), THREAD); |
0 | 356 CLEAR_PENDING_EXCEPTION; // ignore exceptions |
357 if (k == NULL) { | |
242 | 358 k = SystemDictionary::resolve_or_null( |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
359 vmSymbols::java_lang_Shutdown(), THREAD); |
0 | 360 CLEAR_PENDING_EXCEPTION; // ignore exceptions |
361 if (k == NULL) { | |
242 | 362 jdk_version = 2; |
0 | 363 } else { |
242 | 364 jdk_version = 3; |
0 | 365 } |
366 } else { | |
242 | 367 jdk_version = 4; |
0 | 368 } |
369 } else { | |
242 | 370 jdk_version = 5; |
0 | 371 } |
242 | 372 JDK_Version::fully_initialize(jdk_version); |
0 | 373 } |
374 | |
375 #ifdef ASSERT | |
376 if (FullGCALot) { | |
377 // Allocate an array of dummy objects. | |
378 // We'd like these to be at the bottom of the old generation, | |
379 // so that when we free one and then collect, | |
380 // (almost) the whole heap moves | |
381 // and we find out if we actually update all the oops correctly. | |
382 // But we can't allocate directly in the old generation, | |
383 // so we allocate wherever, and hope that the first collection | |
384 // moves these objects to the bottom of the old generation. | |
385 // We can allocate directly in the permanent generation, so we do. | |
386 int size; | |
387 if (UseConcMarkSweepGC) { | |
388 warning("Using +FullGCALot with concurrent mark sweep gc " | |
389 "will not force all objects to relocate"); | |
390 size = FullGCALotDummies; | |
391 } else { | |
392 size = FullGCALotDummies * 2; | |
393 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
394 objArrayOop naked_array = oopFactory::new_objArray(SystemDictionary::Object_klass(), size, CHECK); |
0 | 395 objArrayHandle dummy_array(THREAD, naked_array); |
396 int i = 0; | |
397 while (i < size) { | |
398 // Allocate dummy in old generation | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
399 oop dummy = InstanceKlass::cast(SystemDictionary::Object_klass())->allocate_instance(CHECK); |
0 | 400 dummy_array->obj_at_put(i++, dummy); |
401 } | |
402 { | |
403 // Only modify the global variable inside the mutex. | |
404 // If we had a race to here, the other dummy_array instances | |
405 // and their elements just get dropped on the floor, which is fine. | |
406 MutexLocker ml(FullGCALot_lock); | |
407 if (_fullgc_alot_dummy_array == NULL) { | |
408 _fullgc_alot_dummy_array = dummy_array(); | |
409 } | |
410 } | |
411 assert(i == _fullgc_alot_dummy_array->length(), "just checking"); | |
412 } | |
413 #endif | |
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
414 |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
415 // Initialize dependency array for null class loader |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
416 ClassLoaderData::the_null_class_loader_data()->init_dependencies(CHECK); |
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
417 |
0 | 418 } |
419 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
420 // CDS support for patching vtables in metadata in the shared archive. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
421 // All types inherited from Metadata have vtables, but not types inherited |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
422 // from MetaspaceObj, because the latter does not have virtual functions. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
423 // If the metadata type has a vtable, it cannot be shared in the read-only |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
424 // section of the CDS archive, because the vtable pointer is patched. |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
425 static inline void add_vtable(void** list, int* n, void* o, int count) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
426 guarantee((*n) < count, "vtable list too small"); |
7176
59c790074993
8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents:
6985
diff
changeset
|
427 void* vtable = dereference_vptr(o); |
59c790074993
8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents:
6985
diff
changeset
|
428 assert(*(void**)(vtable) != NULL, "invalid vtable"); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
429 list[(*n)++] = vtable; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
430 } |
0 | 431 |
432 void Universe::init_self_patching_vtbl_list(void** list, int count) { | |
433 int n = 0; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
434 { InstanceKlass o; add_vtable(list, &n, &o, count); } |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
435 { InstanceClassLoaderKlass o; add_vtable(list, &n, &o, count); } |
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
436 { InstanceMirrorKlass o; add_vtable(list, &n, &o, count); } |
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
437 { InstanceRefKlass o; add_vtable(list, &n, &o, count); } |
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
438 { TypeArrayKlass o; add_vtable(list, &n, &o, count); } |
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
439 { ObjArrayKlass o; add_vtable(list, &n, &o, count); } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
440 { Method o; add_vtable(list, &n, &o, count); } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
441 { ConstantPool o; add_vtable(list, &n, &o, count); } |
0 | 442 } |
443 | |
444 void Universe::initialize_basic_type_mirrors(TRAPS) { | |
445 assert(_int_mirror==NULL, "basic type mirrors already initialized"); | |
446 _int_mirror = | |
447 java_lang_Class::create_basic_type_mirror("int", T_INT, CHECK); | |
448 _float_mirror = | |
449 java_lang_Class::create_basic_type_mirror("float", T_FLOAT, CHECK); | |
450 _double_mirror = | |
451 java_lang_Class::create_basic_type_mirror("double", T_DOUBLE, CHECK); | |
452 _byte_mirror = | |
453 java_lang_Class::create_basic_type_mirror("byte", T_BYTE, CHECK); | |
454 _bool_mirror = | |
455 java_lang_Class::create_basic_type_mirror("boolean",T_BOOLEAN, CHECK); | |
456 _char_mirror = | |
457 java_lang_Class::create_basic_type_mirror("char", T_CHAR, CHECK); | |
458 _long_mirror = | |
459 java_lang_Class::create_basic_type_mirror("long", T_LONG, CHECK); | |
460 _short_mirror = | |
461 java_lang_Class::create_basic_type_mirror("short", T_SHORT, CHECK); | |
462 _void_mirror = | |
463 java_lang_Class::create_basic_type_mirror("void", T_VOID, CHECK); | |
464 | |
465 _mirrors[T_INT] = _int_mirror; | |
466 _mirrors[T_FLOAT] = _float_mirror; | |
467 _mirrors[T_DOUBLE] = _double_mirror; | |
468 _mirrors[T_BYTE] = _byte_mirror; | |
469 _mirrors[T_BOOLEAN] = _bool_mirror; | |
470 _mirrors[T_CHAR] = _char_mirror; | |
471 _mirrors[T_LONG] = _long_mirror; | |
472 _mirrors[T_SHORT] = _short_mirror; | |
473 _mirrors[T_VOID] = _void_mirror; | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
474 //_mirrors[T_OBJECT] = InstanceKlass::cast(_object_klass)->java_mirror(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
475 //_mirrors[T_ARRAY] = InstanceKlass::cast(_object_klass)->java_mirror(); |
0 | 476 } |
477 | |
478 void Universe::fixup_mirrors(TRAPS) { | |
479 // Bootstrap problem: all classes gets a mirror (java.lang.Class instance) assigned eagerly, | |
480 // but we cannot do that for classes created before java.lang.Class is loaded. Here we simply | |
481 // walk over permanent objects created so far (mostly classes) and fixup their mirrors. Note | |
482 // that the number of objects allocated at this point is very small. | |
1142 | 483 assert(SystemDictionary::Class_klass_loaded(), "java.lang.Class should be loaded"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
484 HandleMark hm(THREAD); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2375
diff
changeset
|
485 // Cache the start of the static fields |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
486 InstanceMirrorKlass::init_offset_of_static_fields(); |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2375
diff
changeset
|
487 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
488 GrowableArray <Klass*>* list = java_lang_Class::fixup_mirror_list(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
489 int list_length = list->length(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
490 for (int i = 0; i < list_length; i++) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
491 Klass* k = list->at(i); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
492 assert(k->is_klass(), "List should only hold classes"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
493 EXCEPTION_MARK; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
494 KlassHandle kh(THREAD, k); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
495 java_lang_Class::fixup_mirror(kh, CATCH); |
0 | 496 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
497 delete java_lang_Class::fixup_mirror_list(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
498 java_lang_Class::set_fixup_mirror_list(NULL); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
499 } |
0 | 500 |
501 static bool has_run_finalizers_on_exit = false; | |
502 | |
503 void Universe::run_finalizers_on_exit() { | |
504 if (has_run_finalizers_on_exit) return; | |
505 has_run_finalizers_on_exit = true; | |
506 | |
507 // Called on VM exit. This ought to be run in a separate thread. | |
508 if (TraceReferenceGC) tty->print_cr("Callback to run finalizers on exit"); | |
509 { | |
510 PRESERVE_EXCEPTION_MARK; | |
1142 | 511 KlassHandle finalizer_klass(THREAD, SystemDictionary::Finalizer_klass()); |
0 | 512 JavaValue result(T_VOID); |
513 JavaCalls::call_static( | |
514 &result, | |
515 finalizer_klass, | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
516 vmSymbols::run_finalizers_on_exit_name(), |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
517 vmSymbols::void_method_signature(), |
0 | 518 THREAD |
519 ); | |
520 // Ignore any pending exceptions | |
521 CLEAR_PENDING_EXCEPTION; | |
522 } | |
523 } | |
524 | |
525 | |
526 // initialize_vtable could cause gc if | |
527 // 1) we specified true to initialize_vtable and | |
528 // 2) this ran after gc was enabled | |
529 // In case those ever change we use handles for oops | |
530 void Universe::reinitialize_vtable_of(KlassHandle k_h, TRAPS) { | |
531 // init vtable of k and all subclasses | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
532 Klass* ko = k_h(); |
0 | 533 klassVtable* vt = ko->vtable(); |
534 if (vt) vt->initialize_vtable(false, CHECK); | |
535 if (ko->oop_is_instance()) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
536 InstanceKlass* ik = (InstanceKlass*)ko; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
537 for (KlassHandle s_h(THREAD, ik->subklass()); s_h() != NULL; s_h = (THREAD, s_h()->next_sibling())) { |
0 | 538 reinitialize_vtable_of(s_h, CHECK); |
539 } | |
540 } | |
541 } | |
542 | |
543 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
544 void initialize_itable_for_klass(Klass* k, TRAPS) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
545 InstanceKlass::cast(k)->itable()->initialize_itable(false, CHECK); |
0 | 546 } |
547 | |
548 | |
549 void Universe::reinitialize_itables(TRAPS) { | |
550 SystemDictionary::classes_do(initialize_itable_for_klass, CHECK); | |
551 | |
552 } | |
553 | |
554 | |
555 bool Universe::on_page_boundary(void* addr) { | |
556 return ((uintptr_t) addr) % os::vm_page_size() == 0; | |
557 } | |
558 | |
559 | |
560 bool Universe::should_fill_in_stack_trace(Handle throwable) { | |
561 // never attempt to fill in the stack trace of preallocated errors that do not have | |
562 // backtrace. These errors are kept alive forever and may be "re-used" when all | |
563 // preallocated errors with backtrace have been consumed. Also need to avoid | |
564 // a potential loop which could happen if an out of memory occurs when attempting | |
565 // to allocate the backtrace. | |
566 return ((throwable() != Universe::_out_of_memory_error_java_heap) && | |
567 (throwable() != Universe::_out_of_memory_error_perm_gen) && | |
568 (throwable() != Universe::_out_of_memory_error_array_size) && | |
569 (throwable() != Universe::_out_of_memory_error_gc_overhead_limit)); | |
570 } | |
571 | |
572 | |
573 oop Universe::gen_out_of_memory_error(oop default_err) { | |
574 // generate an out of memory error: | |
575 // - if there is a preallocated error with backtrace available then return it wth | |
576 // a filled in stack trace. | |
577 // - if there are no preallocated errors with backtrace available then return | |
578 // an error without backtrace. | |
579 int next; | |
580 if (_preallocated_out_of_memory_error_avail_count > 0) { | |
581 next = (int)Atomic::add(-1, &_preallocated_out_of_memory_error_avail_count); | |
582 assert(next < (int)PreallocatedOutOfMemoryErrorCount, "avail count is corrupt"); | |
583 } else { | |
584 next = -1; | |
585 } | |
586 if (next < 0) { | |
587 // all preallocated errors have been used. | |
588 // return default | |
589 return default_err; | |
590 } else { | |
591 // get the error object at the slot and set set it to NULL so that the | |
592 // array isn't keeping it alive anymore. | |
593 oop exc = preallocated_out_of_memory_errors()->obj_at(next); | |
594 assert(exc != NULL, "slot has been used already"); | |
595 preallocated_out_of_memory_errors()->obj_at_put(next, NULL); | |
596 | |
597 // use the message from the default error | |
598 oop msg = java_lang_Throwable::message(default_err); | |
599 assert(msg != NULL, "no message"); | |
600 java_lang_Throwable::set_message(exc, msg); | |
601 | |
602 // populate the stack trace and return it. | |
603 java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(exc); | |
604 return exc; | |
605 } | |
606 } | |
607 | |
608 static intptr_t non_oop_bits = 0; | |
609 | |
610 void* Universe::non_oop_word() { | |
611 // Neither the high bits nor the low bits of this value is allowed | |
612 // to look like (respectively) the high or low bits of a real oop. | |
613 // | |
614 // High and low are CPU-specific notions, but low always includes | |
615 // the low-order bit. Since oops are always aligned at least mod 4, | |
616 // setting the low-order bit will ensure that the low half of the | |
617 // word will never look like that of a real oop. | |
618 // | |
619 // Using the OS-supplied non-memory-address word (usually 0 or -1) | |
620 // will take care of the high bits, however many there are. | |
621 | |
622 if (non_oop_bits == 0) { | |
623 non_oop_bits = (intptr_t)os::non_memory_address_word() | 1; | |
624 } | |
625 | |
626 return (void*)non_oop_bits; | |
627 } | |
628 | |
629 jint universe_init() { | |
630 assert(!Universe::_fully_initialized, "called after initialize_vtables"); | |
631 guarantee(1 << LogHeapWordSize == sizeof(HeapWord), | |
632 "LogHeapWordSize is incorrect."); | |
633 guarantee(sizeof(oop) >= sizeof(HeapWord), "HeapWord larger than oop?"); | |
634 guarantee(sizeof(oop) % sizeof(HeapWord) == 0, | |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
635 "oop size is not not a multiple of HeapWord size"); |
0 | 636 TraceTime timer("Genesis", TraceStartupTime); |
637 GC_locker::lock(); // do not allow gc during bootstrapping | |
638 JavaClasses::compute_hard_coded_offsets(); | |
639 | |
640 jint status = Universe::initialize_heap(); | |
641 if (status != JNI_OK) { | |
642 return status; | |
643 } | |
644 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
645 // Create memory for metadata. Must be after initializing heap for |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
646 // DumpSharedSpaces. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
647 ClassLoaderData::init_null_class_loader_data(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
648 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
649 // We have a heap so create the Method* caches before |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
650 // Metaspace::initialize_shared_spaces() tries to populate them. |
0 | 651 Universe::_finalizer_register_cache = new LatestMethodOopCache(); |
6751
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
652 Universe::_loader_addClass_cache = new LatestMethodOopCache(); |
11010 | 653 Universe::_pd_implies_cache = new LatestMethodOopCache(); |
0 | 654 Universe::_reflect_invoke_cache = new ActiveMethodOopsCache(); |
655 | |
656 if (UseSharedSpaces) { | |
657 // Read the data structures supporting the shared spaces (shared | |
658 // system dictionary, symbol table, etc.). After that, access to | |
659 // the file (other than the mapped regions) is no longer needed, and | |
660 // the file is closed. Closing the file does not affect the | |
661 // currently mapped regions. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
662 MetaspaceShared::initialize_shared_spaces(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
663 StringTable::create_table(); |
0 | 664 } else { |
665 SymbolTable::create_table(); | |
666 StringTable::create_table(); | |
667 ClassLoader::create_package_info_table(); | |
668 } | |
669 | |
670 return JNI_OK; | |
671 } | |
672 | |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
673 // Choose the heap base address and oop encoding mode |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
674 // when compressed oops are used: |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
675 // Unscaled - Use 32-bits oops without encoding when |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
676 // NarrowOopHeapBaseMin + heap_size < 4Gb |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
677 // ZeroBased - Use zero based compressed oops with encoding when |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
678 // NarrowOopHeapBaseMin + heap_size < 32Gb |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
679 // HeapBased - Use compressed oops with heap base + encoding. |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
680 |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
681 // 4Gb |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
682 static const uint64_t NarrowOopHeapMax = (uint64_t(max_juint) + 1); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
683 // 32Gb |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1507
diff
changeset
|
684 // OopEncodingHeapMax == NarrowOopHeapMax << LogMinObjAlignmentInBytes; |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
685 |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
686 char* Universe::preferred_heap_base(size_t heap_size, NARROW_OOP_MODE mode) { |
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
687 size_t base = 0; |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
688 #ifdef _LP64 |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
689 if (UseCompressedOops) { |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
690 assert(mode == UnscaledNarrowOop || |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
691 mode == ZeroBasedNarrowOop || |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
692 mode == HeapBasedNarrowOop, "mode is invalid"); |
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
693 const size_t total_size = heap_size + HeapBaseMinAddress; |
922
1a81ea4b45d4
6869822: assert(Universe::narrow_oop_shift() == 0,"use unscaled narrow oop")
kvn
parents:
845
diff
changeset
|
694 // Return specified base for the first request. |
1a81ea4b45d4
6869822: assert(Universe::narrow_oop_shift() == 0,"use unscaled narrow oop")
kvn
parents:
845
diff
changeset
|
695 if (!FLAG_IS_DEFAULT(HeapBaseMinAddress) && (mode == UnscaledNarrowOop)) { |
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
696 base = HeapBaseMinAddress; |
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
697 |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
698 // If the total size and the metaspace size are small enough to allow |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
699 // UnscaledNarrowOop then just use UnscaledNarrowOop. |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
700 } else if ((total_size <= OopEncodingHeapMax) && (mode != HeapBasedNarrowOop) && |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
701 (!UseCompressedKlassPointers || |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
702 (((OopEncodingHeapMax - heap_size) + Universe::class_metaspace_size()) <= KlassEncodingMetaspaceMax))) { |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
703 // We don't need to check the metaspace size here because it is always smaller |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
704 // than total_size. |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
705 if ((total_size <= NarrowOopHeapMax) && (mode == UnscaledNarrowOop) && |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
706 (Universe::narrow_oop_shift() == 0)) { |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
707 // Use 32-bits oops without encoding and |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
708 // place heap's top on the 4Gb boundary |
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
709 base = (NarrowOopHeapMax - heap_size); |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
710 } else { |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
711 // Can't reserve with NarrowOopShift == 0 |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
712 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
713 if (mode == UnscaledNarrowOop || |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
714 mode == ZeroBasedNarrowOop && total_size <= NarrowOopHeapMax) { |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
715 // Use zero based compressed oops with encoding and |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
716 // place heap's top on the 32Gb boundary in case |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
717 // total_size > 4Gb or failed to reserve below 4Gb. |
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
718 base = (OopEncodingHeapMax - heap_size); |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
719 } |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
720 } |
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
721 |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
722 // See if ZeroBaseNarrowOop encoding will work for a heap based at |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
723 // (KlassEncodingMetaspaceMax - class_metaspace_size()). |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
724 } else if (UseCompressedKlassPointers && (mode != HeapBasedNarrowOop) && |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
725 (Universe::class_metaspace_size() + HeapBaseMinAddress <= KlassEncodingMetaspaceMax) && |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
726 (KlassEncodingMetaspaceMax + heap_size - Universe::class_metaspace_size() <= OopEncodingHeapMax)) { |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
727 base = (KlassEncodingMetaspaceMax - Universe::class_metaspace_size()); |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
728 } else { |
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
729 // UnscaledNarrowOop encoding didn't work, and no base was found for ZeroBasedOops or |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
730 // HeapBasedNarrowOop encoding was requested. So, can't reserve below 32Gb. |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
731 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
732 } |
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
733 |
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
734 // Set narrow_oop_base and narrow_oop_use_implicit_null_checks |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
735 // used in ReservedHeapSpace() constructors. |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
736 // The final values will be set in initialize_heap() below. |
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
737 if ((base != 0) && ((base + heap_size) <= OopEncodingHeapMax) && |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
738 (!UseCompressedKlassPointers || (base + Universe::class_metaspace_size()) <= KlassEncodingMetaspaceMax)) { |
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
739 // Use zero based compressed oops |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
740 Universe::set_narrow_oop_base(NULL); |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
741 // Don't need guard page for implicit checks in indexed |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
742 // addressing mode with zero based Compressed Oops. |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
743 Universe::set_narrow_oop_use_implicit_null_checks(true); |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
744 } else { |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
745 // Set to a non-NULL value so the ReservedSpace ctor computes |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
746 // the correct no-access prefix. |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
747 // The final value will be set in initialize_heap() below. |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
748 Universe::set_narrow_oop_base((address)NarrowOopHeapMax); |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
749 #ifdef _WIN64 |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
750 if (UseLargePages) { |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
751 // Cannot allocate guard pages for implicit checks in indexed |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
752 // addressing mode when large pages are specified on windows. |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
753 Universe::set_narrow_oop_use_implicit_null_checks(false); |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
754 } |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
755 #endif // _WIN64 |
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
756 } |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
757 } |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
758 #endif |
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
759 return (char*)base; // also return NULL (don't care) for 32-bit VM |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
760 } |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
761 |
0 | 762 jint Universe::initialize_heap() { |
763 | |
764 if (UseParallelGC) { | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
765 #if INCLUDE_ALL_GCS |
0 | 766 Universe::_collectedHeap = new ParallelScavengeHeap(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
767 #else // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6751
diff
changeset
|
768 fatal("UseParallelGC not supported in this VM."); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
769 #endif // INCLUDE_ALL_GCS |
0 | 770 |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
771 } else if (UseG1GC) { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
772 #if INCLUDE_ALL_GCS |
4013 | 773 G1CollectorPolicy* g1p = new G1CollectorPolicy(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
774 G1CollectedHeap* g1h = new G1CollectedHeap(g1p); |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
775 Universe::_collectedHeap = g1h; |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
776 #else // INCLUDE_ALL_GCS |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
777 fatal("UseG1GC not supported in java kernel vm."); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
778 #endif // INCLUDE_ALL_GCS |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
779 |
0 | 780 } else { |
781 GenCollectorPolicy *gc_policy; | |
782 | |
783 if (UseSerialGC) { | |
784 gc_policy = new MarkSweepPolicy(); | |
785 } else if (UseConcMarkSweepGC) { | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
786 #if INCLUDE_ALL_GCS |
0 | 787 if (UseAdaptiveSizePolicy) { |
788 gc_policy = new ASConcurrentMarkSweepPolicy(); | |
789 } else { | |
790 gc_policy = new ConcurrentMarkSweepPolicy(); | |
791 } | |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
792 #else // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6751
diff
changeset
|
793 fatal("UseConcMarkSweepGC not supported in this VM."); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
794 #endif // INCLUDE_ALL_GCS |
0 | 795 } else { // default old generation |
796 gc_policy = new MarkSweepPolicy(); | |
797 } | |
798 | |
799 Universe::_collectedHeap = new GenCollectedHeap(gc_policy); | |
800 } | |
801 | |
802 jint status = Universe::heap()->initialize(); | |
803 if (status != JNI_OK) { | |
804 return status; | |
805 } | |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
806 |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
807 #ifdef _LP64 |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
808 if (UseCompressedOops) { |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
809 // Subtract a page because something can get allocated at heap base. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
810 // This also makes implicit null checking work, because the |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
811 // memory+1 page below heap_base needs to cause a signal. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
812 // See needs_explicit_null_check. |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
813 // Only set the heap base for compressed oops because it indicates |
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
814 // compressed oops for pstack code. |
2080 | 815 bool verbose = PrintCompressedOopsMode || (PrintMiscellaneous && Verbose); |
816 if (verbose) { | |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
817 tty->cr(); |
1963 | 818 tty->print("heap address: " PTR_FORMAT ", size: " SIZE_FORMAT " MB", |
819 Universe::heap()->base(), Universe::heap()->reserved_region().byte_size()/M); | |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
820 } |
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
821 if (((uint64_t)Universe::heap()->reserved_region().end() > OopEncodingHeapMax) || |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
822 (UseCompressedKlassPointers && |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
823 ((uint64_t)Universe::heap()->base() + Universe::class_metaspace_size() > KlassEncodingMetaspaceMax))) { |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
824 // Can't reserve heap below 32Gb. |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
825 // keep the Universe::narrow_oop_base() set in Universe::reserve_heap() |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
826 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes); |
2080 | 827 if (verbose) { |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
828 tty->print(", Compressed Oops with base: "PTR_FORMAT, Universe::narrow_oop_base()); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
829 } |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
830 } else { |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
831 Universe::set_narrow_oop_base(0); |
2080 | 832 if (verbose) { |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
833 tty->print(", zero based Compressed Oops"); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
834 } |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
835 #ifdef _WIN64 |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
836 if (!Universe::narrow_oop_use_implicit_null_checks()) { |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
837 // Don't need guard page for implicit checks in indexed addressing |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
838 // mode with zero based Compressed Oops. |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
839 Universe::set_narrow_oop_use_implicit_null_checks(true); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
840 } |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
841 #endif // _WIN64 |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
842 if((uint64_t)Universe::heap()->reserved_region().end() > NarrowOopHeapMax) { |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
843 // Can't reserve heap below 4Gb. |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
844 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
845 } else { |
922
1a81ea4b45d4
6869822: assert(Universe::narrow_oop_shift() == 0,"use unscaled narrow oop")
kvn
parents:
845
diff
changeset
|
846 Universe::set_narrow_oop_shift(0); |
2080 | 847 if (verbose) { |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
848 tty->print(", 32-bits Oops"); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
849 } |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
850 } |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
851 } |
2080 | 852 if (verbose) { |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
853 tty->cr(); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
854 tty->cr(); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
855 } |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
856 if (UseCompressedKlassPointers) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
857 Universe::set_narrow_klass_base(Universe::narrow_oop_base()); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
858 Universe::set_narrow_klass_shift(MIN2(Universe::narrow_oop_shift(), LogKlassAlignmentInBytes)); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
859 } |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
860 Universe::set_narrow_ptrs_base(Universe::narrow_oop_base()); |
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
861 } |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
862 // Universe::narrow_oop_base() is one page below the metaspace |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
863 // base. The actual metaspace base depends on alignment constraints |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
864 // so we don't know its exact location here. |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
865 assert((intptr_t)Universe::narrow_oop_base() <= (intptr_t)(Universe::heap()->base() - os::vm_page_size() - ClassMetaspaceSize) || |
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
866 Universe::narrow_oop_base() == NULL, "invalid value"); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
867 assert(Universe::narrow_oop_shift() == LogMinObjAlignmentInBytes || |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
868 Universe::narrow_oop_shift() == 0, "invalid value"); |
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
869 #endif |
0 | 870 |
871 // We will never reach the CATCH below since Exceptions::_throw will cause | |
872 // the VM to exit if an exception is thrown during initialization | |
873 | |
874 if (UseTLAB) { | |
875 assert(Universe::heap()->supports_tlab_allocation(), | |
876 "Should support thread-local allocation buffers"); | |
877 ThreadLocalAllocBuffer::startup_initialization(); | |
878 } | |
879 return JNI_OK; | |
880 } | |
881 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
882 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
883 // Reserve the Java heap, which is now the same for all GCs. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
884 ReservedSpace Universe::reserve_heap(size_t heap_size, size_t alignment) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
885 // Add in the class metaspace area so the classes in the headers can |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
886 // be compressed the same as instances. |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
887 // Need to round class space size up because it's below the heap and |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
888 // the actual alignment depends on its size. |
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
889 Universe::set_class_metaspace_size(align_size_up(ClassMetaspaceSize, alignment)); |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
890 size_t total_reserved = align_size_up(heap_size + Universe::class_metaspace_size(), alignment); |
8741
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents:
8003
diff
changeset
|
891 assert(!UseCompressedOops || (total_reserved <= (OopEncodingHeapMax - os::vm_page_size())), |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents:
8003
diff
changeset
|
892 "heap size is too big for compressed oops"); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
893 char* addr = Universe::preferred_heap_base(total_reserved, Universe::UnscaledNarrowOop); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
894 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
895 ReservedHeapSpace total_rs(total_reserved, alignment, UseLargePages, addr); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
896 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
897 if (UseCompressedOops) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
898 if (addr != NULL && !total_rs.is_reserved()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
899 // Failed to reserve at specified address - the requested memory |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
900 // region is taken already, for example, by 'java' launcher. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
901 // Try again to reserver heap higher. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
902 addr = Universe::preferred_heap_base(total_reserved, Universe::ZeroBasedNarrowOop); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
903 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
904 ReservedHeapSpace total_rs0(total_reserved, alignment, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
905 UseLargePages, addr); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
906 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
907 if (addr != NULL && !total_rs0.is_reserved()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
908 // Failed to reserve at specified address again - give up. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
909 addr = Universe::preferred_heap_base(total_reserved, Universe::HeapBasedNarrowOop); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
910 assert(addr == NULL, ""); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
911 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
912 ReservedHeapSpace total_rs1(total_reserved, alignment, |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
913 UseLargePages, addr); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
914 total_rs = total_rs1; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
915 } else { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
916 total_rs = total_rs0; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
917 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
918 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
919 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
920 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
921 if (!total_rs.is_reserved()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
922 vm_exit_during_initialization(err_msg("Could not reserve enough space for object heap %d bytes", total_reserved)); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
923 return total_rs; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
924 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
925 |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
926 // Split the reserved space into main Java heap and a space for |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
927 // classes so that they can be compressed using the same algorithm |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
928 // as compressed oops. If compress oops and compress klass ptrs are |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
929 // used we need the meta space first: if the alignment used for |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
930 // compressed oops is greater than the one used for compressed klass |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
931 // ptrs, a metadata space on top of the heap could become |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
932 // unreachable. |
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
933 ReservedSpace class_rs = total_rs.first_part(Universe::class_metaspace_size()); |
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
934 ReservedSpace heap_rs = total_rs.last_part(Universe::class_metaspace_size(), alignment); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
935 Metaspace::initialize_class_space(class_rs); |
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
936 |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
937 if (UseCompressedOops) { |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
938 // Universe::initialize_heap() will reset this to NULL if unscaled |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
939 // or zero-based narrow oops are actually used. |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
940 address base = (address)(total_rs.base() - os::vm_page_size()); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
941 Universe::set_narrow_oop_base(base); |
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
942 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
943 return heap_rs; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
944 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
945 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
946 |
0 | 947 // It's the caller's repsonsibility to ensure glitch-freedom |
948 // (if required). | |
949 void Universe::update_heap_info_at_gc() { | |
950 _heap_capacity_at_last_gc = heap()->capacity(); | |
951 _heap_used_at_last_gc = heap()->used(); | |
952 } | |
953 | |
954 | |
955 | |
956 void universe2_init() { | |
957 EXCEPTION_MARK; | |
958 Universe::genesis(CATCH); | |
959 } | |
960 | |
961 | |
962 // This function is defined in JVM.cpp | |
963 extern void initialize_converter_functions(); | |
964 | |
965 bool universe_post_init() { | |
1959
9eecf81a02fb
7000578: CMS: assert(SafepointSynchronize::is_at_safepoint()) failed: Else races are possible
ysr
parents:
1579
diff
changeset
|
966 assert(!is_init_completed(), "Error: initialization not yet completed!"); |
0 | 967 Universe::_fully_initialized = true; |
968 EXCEPTION_MARK; | |
969 { ResourceMark rm; | |
970 Interpreter::initialize(); // needed for interpreter entry points | |
971 if (!UseSharedSpaces) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
972 HandleMark hm(THREAD); |
1142 | 973 KlassHandle ok_h(THREAD, SystemDictionary::Object_klass()); |
0 | 974 Universe::reinitialize_vtable_of(ok_h, CHECK_false); |
975 Universe::reinitialize_itables(CHECK_false); | |
976 } | |
977 } | |
978 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
979 HandleMark hm(THREAD); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
980 Klass* k; |
0 | 981 instanceKlassHandle k_h; |
982 // Setup preallocated empty java.lang.Class array | |
1142 | 983 Universe::_the_empty_class_klass_array = oopFactory::new_objArray(SystemDictionary::Class_klass(), 0, CHECK_false); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
984 |
0 | 985 // Setup preallocated OutOfMemoryError errors |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
986 k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_OutOfMemoryError(), true, CHECK_false); |
0 | 987 k_h = instanceKlassHandle(THREAD, k); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
988 Universe::_out_of_memory_error_java_heap = k_h->allocate_instance(CHECK_false); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
989 Universe::_out_of_memory_error_perm_gen = k_h->allocate_instance(CHECK_false); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
990 Universe::_out_of_memory_error_array_size = k_h->allocate_instance(CHECK_false); |
0 | 991 Universe::_out_of_memory_error_gc_overhead_limit = |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
992 k_h->allocate_instance(CHECK_false); |
0 | 993 |
994 // Setup preallocated NullPointerException | |
995 // (this is currently used for a cheap & dirty solution in compiler exception handling) | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
996 k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_NullPointerException(), true, CHECK_false); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
997 Universe::_null_ptr_exception_instance = InstanceKlass::cast(k)->allocate_instance(CHECK_false); |
0 | 998 // Setup preallocated ArithmeticException |
999 // (this is currently used for a cheap & dirty solution in compiler exception handling) | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
1000 k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_ArithmeticException(), true, CHECK_false); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1001 Universe::_arithmetic_exception_instance = InstanceKlass::cast(k)->allocate_instance(CHECK_false); |
0 | 1002 // Virtual Machine Error for when we get into a situation we can't resolve |
1003 k = SystemDictionary::resolve_or_fail( | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
1004 vmSymbols::java_lang_VirtualMachineError(), true, CHECK_false); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1005 bool linked = InstanceKlass::cast(k)->link_class_or_fail(CHECK_false); |
0 | 1006 if (!linked) { |
1007 tty->print_cr("Unable to link/verify VirtualMachineError class"); | |
1008 return false; // initialization failed | |
1009 } | |
1010 Universe::_virtual_machine_error_instance = | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1011 InstanceKlass::cast(k)->allocate_instance(CHECK_false); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
1012 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1013 Universe::_vm_exception = InstanceKlass::cast(k)->allocate_instance(CHECK_false); |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
1014 |
0 | 1015 if (!DumpSharedSpaces) { |
1016 // These are the only Java fields that are currently set during shared space dumping. | |
1017 // We prefer to not handle this generally, so we always reinitialize these detail messages. | |
1018 Handle msg = java_lang_String::create_from_str("Java heap space", CHECK_false); | |
1019 java_lang_Throwable::set_message(Universe::_out_of_memory_error_java_heap, msg()); | |
1020 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1021 msg = java_lang_String::create_from_str("Metadata space", CHECK_false); |
0 | 1022 java_lang_Throwable::set_message(Universe::_out_of_memory_error_perm_gen, msg()); |
1023 | |
1024 msg = java_lang_String::create_from_str("Requested array size exceeds VM limit", CHECK_false); | |
1025 java_lang_Throwable::set_message(Universe::_out_of_memory_error_array_size, msg()); | |
1026 | |
1027 msg = java_lang_String::create_from_str("GC overhead limit exceeded", CHECK_false); | |
1028 java_lang_Throwable::set_message(Universe::_out_of_memory_error_gc_overhead_limit, msg()); | |
1029 | |
1030 msg = java_lang_String::create_from_str("/ by zero", CHECK_false); | |
1031 java_lang_Throwable::set_message(Universe::_arithmetic_exception_instance, msg()); | |
1032 | |
1033 // Setup the array of errors that have preallocated backtrace | |
1034 k = Universe::_out_of_memory_error_java_heap->klass(); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1035 assert(k->name() == vmSymbols::java_lang_OutOfMemoryError(), "should be out of memory error"); |
0 | 1036 k_h = instanceKlassHandle(THREAD, k); |
1037 | |
1038 int len = (StackTraceInThrowable) ? (int)PreallocatedOutOfMemoryErrorCount : 0; | |
1039 Universe::_preallocated_out_of_memory_error_array = oopFactory::new_objArray(k_h(), len, CHECK_false); | |
1040 for (int i=0; i<len; i++) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1041 oop err = k_h->allocate_instance(CHECK_false); |
0 | 1042 Handle err_h = Handle(THREAD, err); |
1043 java_lang_Throwable::allocate_backtrace(err_h, CHECK_false); | |
1044 Universe::preallocated_out_of_memory_errors()->obj_at_put(i, err_h()); | |
1045 } | |
1046 Universe::_preallocated_out_of_memory_error_avail_count = (jint)len; | |
1047 } | |
1048 | |
1049 | |
1050 // Setup static method for registering finalizers | |
1051 // The finalizer klass must be linked before looking up the method, in | |
1052 // case it needs to get rewritten. | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1053 InstanceKlass::cast(SystemDictionary::Finalizer_klass())->link_class(CHECK_false); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1054 Method* m = InstanceKlass::cast(SystemDictionary::Finalizer_klass())->find_method( |
0 | 1055 vmSymbols::register_method_name(), |
1056 vmSymbols::register_method_signature()); | |
1057 if (m == NULL || !m->is_static()) { | |
1058 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodException(), | |
1059 "java.lang.ref.Finalizer.register", false); | |
1060 } | |
1061 Universe::_finalizer_register_cache->init( | |
1142 | 1062 SystemDictionary::Finalizer_klass(), m, CHECK_false); |
0 | 1063 |
1064 // Resolve on first use and initialize class. | |
1065 // Note: No race-condition here, since a resolve will always return the same result | |
1066 | |
1067 // Setup method for security checks | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
1068 k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_reflect_Method(), true, CHECK_false); |
0 | 1069 k_h = instanceKlassHandle(THREAD, k); |
1070 k_h->link_class(CHECK_false); | |
1507
cd5dbf694d45
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
1142
diff
changeset
|
1071 m = k_h->find_method(vmSymbols::invoke_name(), vmSymbols::object_object_array_object_signature()); |
0 | 1072 if (m == NULL || m->is_static()) { |
1073 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodException(), | |
1074 "java.lang.reflect.Method.invoke", false); | |
1075 } | |
1076 Universe::_reflect_invoke_cache->init(k_h(), m, CHECK_false); | |
1077 | |
6751
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1078 // Setup method for registering loaded classes in class loader vector |
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1079 InstanceKlass::cast(SystemDictionary::ClassLoader_klass())->link_class(CHECK_false); |
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1080 m = InstanceKlass::cast(SystemDictionary::ClassLoader_klass())->find_method(vmSymbols::addClass_name(), vmSymbols::class_void_signature()); |
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1081 if (m == NULL || m->is_static()) { |
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1082 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodException(), |
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1083 "java.lang.ClassLoader.addClass", false); |
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1084 } |
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1085 Universe::_loader_addClass_cache->init( |
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1086 SystemDictionary::ClassLoader_klass(), m, CHECK_false); |
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1087 |
11010 | 1088 // Setup method for checking protection domain |
1089 InstanceKlass::cast(SystemDictionary::ProtectionDomain_klass())->link_class(CHECK_false); | |
1090 m = InstanceKlass::cast(SystemDictionary::ProtectionDomain_klass())-> | |
1091 find_method(vmSymbols::impliesCreateAccessControlContext_name(), | |
1092 vmSymbols::void_boolean_signature()); | |
1093 // Allow NULL which should only happen with bootstrapping. | |
1094 if (m != NULL) { | |
1095 if (m->is_static()) { | |
1096 // NoSuchMethodException doesn't actually work because it tries to run the | |
1097 // <init> function before java_lang_Class is linked. Print error and exit. | |
1098 tty->print_cr("ProtectionDomain.impliesCreateAccessControlContext() has the wrong linkage"); | |
1099 return false; // initialization failed | |
1100 } | |
1101 Universe::_pd_implies_cache->init( | |
1102 SystemDictionary::ProtectionDomain_klass(), m, CHECK_false);; | |
1103 } | |
1104 | |
0 | 1105 // The folowing is initializing converter functions for serialization in |
1106 // JVM.cpp. If we clean up the StrictMath code above we may want to find | |
1107 // a better solution for this as well. | |
1108 initialize_converter_functions(); | |
1109 | |
1110 // This needs to be done before the first scavenge/gc, since | |
1111 // it's an input to soft ref clearing policy. | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
1112 { |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
1113 MutexLocker x(Heap_lock); |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
1114 Universe::update_heap_info_at_gc(); |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
1115 } |
0 | 1116 |
1117 // ("weak") refs processing infrastructure initialization | |
1118 Universe::heap()->post_initialize(); | |
1119 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1120 // Initialize performance counters for metaspaces |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1121 MetaspaceCounters::initialize_performance_counters(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1122 |
0 | 1123 GC_locker::unlock(); // allow gc after bootstrapping |
1124 | |
1125 MemoryService::set_universe_heap(Universe::_collectedHeap); | |
1126 return true; | |
1127 } | |
1128 | |
1129 | |
1130 void Universe::compute_base_vtable_size() { | |
1131 _base_vtable_size = ClassLoader::compute_Object_vtable(); | |
1132 } | |
1133 | |
1134 | |
1135 // %%% The Universe::flush_foo methods belong in CodeCache. | |
1136 | |
1137 // Flushes compiled methods dependent on dependee. | |
1138 void Universe::flush_dependents_on(instanceKlassHandle dependee) { | |
1139 assert_lock_strong(Compile_lock); | |
1140 | |
1141 if (CodeCache::number_of_nmethods_with_dependencies() == 0) return; | |
1142 | |
1143 // CodeCache can only be updated by a thread_in_VM and they will all be | |
1144 // stopped dring the safepoint so CodeCache will be safe to update without | |
1145 // holding the CodeCache_lock. | |
1146 | |
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1147 KlassDepChange changes(dependee); |
0 | 1148 |
1149 // Compute the dependent nmethods | |
1150 if (CodeCache::mark_for_deoptimization(changes) > 0) { | |
1151 // At least one nmethod has been marked for deoptimization | |
1152 VM_Deoptimize op; | |
1153 VMThread::execute(&op); | |
1154 } | |
1155 } | |
1156 | |
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1157 // Flushes compiled methods dependent on a particular CallSite |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1158 // instance when its target is different than the given MethodHandle. |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1159 void Universe::flush_dependents_on(Handle call_site, Handle method_handle) { |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1160 assert_lock_strong(Compile_lock); |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1161 |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1162 if (CodeCache::number_of_nmethods_with_dependencies() == 0) return; |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1163 |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1164 // CodeCache can only be updated by a thread_in_VM and they will all be |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1165 // stopped dring the safepoint so CodeCache will be safe to update without |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1166 // holding the CodeCache_lock. |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1167 |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1168 CallSiteDepChange changes(call_site(), method_handle()); |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1169 |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1170 // Compute the dependent nmethods that have a reference to a |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1171 // CallSite object. We use InstanceKlass::mark_dependent_nmethod |
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1172 // directly instead of CodeCache::mark_for_deoptimization because we |
3894
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3852
diff
changeset
|
1173 // want dependents on the call site class only not all classes in |
b27c72d69fd1
7083184: JSR 292: don't store context class argument with call site dependencies
twisti
parents:
3852
diff
changeset
|
1174 // the ContextStream. |
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1175 int marked = 0; |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1176 { |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1177 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1178 InstanceKlass* call_site_klass = InstanceKlass::cast(call_site->klass()); |
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1179 marked = call_site_klass->mark_dependent_nmethods(changes); |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1180 } |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1181 if (marked > 0) { |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1182 // At least one nmethod has been marked for deoptimization |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1183 VM_Deoptimize op; |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1184 VMThread::execute(&op); |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1185 } |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1186 } |
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1187 |
0 | 1188 #ifdef HOTSWAP |
1189 // Flushes compiled methods dependent on dependee in the evolutionary sense | |
1190 void Universe::flush_evol_dependents_on(instanceKlassHandle ev_k_h) { | |
1191 // --- Compile_lock is not held. However we are at a safepoint. | |
1192 assert_locked_or_safepoint(Compile_lock); | |
1193 if (CodeCache::number_of_nmethods_with_dependencies() == 0) return; | |
1194 | |
1195 // CodeCache can only be updated by a thread_in_VM and they will all be | |
1196 // stopped dring the safepoint so CodeCache will be safe to update without | |
1197 // holding the CodeCache_lock. | |
1198 | |
1199 // Compute the dependent nmethods | |
1200 if (CodeCache::mark_for_evol_deoptimization(ev_k_h) > 0) { | |
1201 // At least one nmethod has been marked for deoptimization | |
1202 | |
1203 // All this already happens inside a VM_Operation, so we'll do all the work here. | |
1204 // Stuff copied from VM_Deoptimize and modified slightly. | |
1205 | |
1206 // We do not want any GCs to happen while we are in the middle of this VM operation | |
1207 ResourceMark rm; | |
1208 DeoptimizationMarker dm; | |
1209 | |
1210 // Deoptimize all activations depending on marked nmethods | |
1211 Deoptimization::deoptimize_dependents(); | |
1212 | |
1213 // Make the dependent methods not entrant (in VM_Deoptimize they are made zombies) | |
1214 CodeCache::make_marked_nmethods_not_entrant(); | |
1215 } | |
1216 } | |
1217 #endif // HOTSWAP | |
1218 | |
1219 | |
1220 // Flushes compiled methods dependent on dependee | |
1221 void Universe::flush_dependents_on_method(methodHandle m_h) { | |
1222 // --- Compile_lock is not held. However we are at a safepoint. | |
1223 assert_locked_or_safepoint(Compile_lock); | |
1224 | |
1225 // CodeCache can only be updated by a thread_in_VM and they will all be | |
1226 // stopped dring the safepoint so CodeCache will be safe to update without | |
1227 // holding the CodeCache_lock. | |
1228 | |
1229 // Compute the dependent nmethods | |
1230 if (CodeCache::mark_for_deoptimization(m_h()) > 0) { | |
1231 // At least one nmethod has been marked for deoptimization | |
1232 | |
1233 // All this already happens inside a VM_Operation, so we'll do all the work here. | |
1234 // Stuff copied from VM_Deoptimize and modified slightly. | |
1235 | |
1236 // We do not want any GCs to happen while we are in the middle of this VM operation | |
1237 ResourceMark rm; | |
1238 DeoptimizationMarker dm; | |
1239 | |
1240 // Deoptimize all activations depending on marked nmethods | |
1241 Deoptimization::deoptimize_dependents(); | |
1242 | |
1243 // Make the dependent methods not entrant (in VM_Deoptimize they are made zombies) | |
1244 CodeCache::make_marked_nmethods_not_entrant(); | |
1245 } | |
1246 } | |
1247 | |
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1248 void Universe::print() { |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1249 print_on(gclog_or_tty); |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1250 } |
0 | 1251 |
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1252 void Universe::print_on(outputStream* st, bool extended) { |
0 | 1253 st->print_cr("Heap"); |
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1254 if (!extended) { |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1255 heap()->print_on(st); |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1256 } else { |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1257 heap()->print_extended_on(st); |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1258 } |
0 | 1259 } |
1260 | |
1261 void Universe::print_heap_at_SIGBREAK() { | |
1262 if (PrintHeapAtSIGBREAK) { | |
1263 MutexLocker hl(Heap_lock); | |
1264 print_on(tty); | |
1265 tty->cr(); | |
1266 tty->flush(); | |
1267 } | |
1268 } | |
1269 | |
4944 | 1270 void Universe::print_heap_before_gc(outputStream* st, bool ignore_extended) { |
0 | 1271 st->print_cr("{Heap before GC invocations=%u (full %u):", |
1272 heap()->total_collections(), | |
1273 heap()->total_full_collections()); | |
4944 | 1274 if (!PrintHeapAtGCExtended || ignore_extended) { |
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1275 heap()->print_on(st); |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1276 } else { |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1277 heap()->print_extended_on(st); |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1278 } |
0 | 1279 } |
1280 | |
4944 | 1281 void Universe::print_heap_after_gc(outputStream* st, bool ignore_extended) { |
0 | 1282 st->print_cr("Heap after GC invocations=%u (full %u):", |
1283 heap()->total_collections(), | |
1284 heap()->total_full_collections()); | |
4944 | 1285 if (!PrintHeapAtGCExtended || ignore_extended) { |
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1286 heap()->print_on(st); |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1287 } else { |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1288 heap()->print_extended_on(st); |
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1289 } |
0 | 1290 st->print_cr("}"); |
1291 } | |
1292 | |
10186
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9062
diff
changeset
|
1293 void Universe::verify(VerifyOption option, const char* prefix, bool silent) { |
0 | 1294 // The use of _verify_in_progress is a temporary work around for |
1295 // 6320749. Don't bother with a creating a class to set and clear | |
1296 // it since it is only used in this method and the control flow is | |
1297 // straight forward. | |
1298 _verify_in_progress = true; | |
1299 | |
1300 COMPILER2_PRESENT( | |
1301 assert(!DerivedPointerTable::is_active(), | |
1302 "DPT should not be active during verification " | |
1303 "(of thread stacks below)"); | |
1304 ) | |
1305 | |
1306 ResourceMark rm; | |
1307 HandleMark hm; // Handles created during verification can be zapped | |
1308 _verify_count++; | |
1309 | |
10186
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9062
diff
changeset
|
1310 if (!silent) gclog_or_tty->print(prefix); |
0 | 1311 if (!silent) gclog_or_tty->print("[Verifying "); |
1312 if (!silent) gclog_or_tty->print("threads "); | |
1313 Threads::verify(); | |
10186
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9062
diff
changeset
|
1314 if (!silent) gclog_or_tty->print("heap "); |
6008 | 1315 heap()->verify(silent, option); |
0 | 1316 if (!silent) gclog_or_tty->print("syms "); |
1317 SymbolTable::verify(); | |
1318 if (!silent) gclog_or_tty->print("strs "); | |
1319 StringTable::verify(); | |
1320 { | |
1321 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
1322 if (!silent) gclog_or_tty->print("zone "); | |
1323 CodeCache::verify(); | |
1324 } | |
1325 if (!silent) gclog_or_tty->print("dict "); | |
1326 SystemDictionary::verify(); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1327 #ifndef PRODUCT |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1328 if (!silent) gclog_or_tty->print("cldg "); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1329 ClassLoaderDataGraph::verify(); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1330 #endif |
6969
6bc207d87e5d
7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents:
6870
diff
changeset
|
1331 if (!silent) gclog_or_tty->print("metaspace chunks "); |
6bc207d87e5d
7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents:
6870
diff
changeset
|
1332 MetaspaceAux::verify_free_chunks(); |
0 | 1333 if (!silent) gclog_or_tty->print("hand "); |
1334 JNIHandles::verify(); | |
1335 if (!silent) gclog_or_tty->print("C-heap "); | |
1336 os::check_heap(); | |
2375
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2177
diff
changeset
|
1337 if (!silent) gclog_or_tty->print("code cache "); |
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2177
diff
changeset
|
1338 CodeCache::verify_oops(); |
0 | 1339 if (!silent) gclog_or_tty->print_cr("]"); |
1340 | |
1341 _verify_in_progress = false; | |
1342 } | |
1343 | |
1344 // Oop verification (see MacroAssembler::verify_oop) | |
1345 | |
1346 static uintptr_t _verify_oop_data[2] = {0, (uintptr_t)-1}; | |
1347 static uintptr_t _verify_klass_data[2] = {0, (uintptr_t)-1}; | |
1348 | |
1349 | |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8827
diff
changeset
|
1350 #ifndef PRODUCT |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8827
diff
changeset
|
1351 |
0 | 1352 static void calculate_verify_data(uintptr_t verify_data[2], |
1353 HeapWord* low_boundary, | |
1354 HeapWord* high_boundary) { | |
1355 assert(low_boundary < high_boundary, "bad interval"); | |
1356 | |
1357 // decide which low-order bits we require to be clear: | |
1358 size_t alignSize = MinObjAlignmentInBytes; | |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1507
diff
changeset
|
1359 size_t min_object_size = CollectedHeap::min_fill_size(); |
0 | 1360 |
1361 // make an inclusive limit: | |
1362 uintptr_t max = (uintptr_t)high_boundary - min_object_size*wordSize; | |
1363 uintptr_t min = (uintptr_t)low_boundary; | |
1364 assert(min < max, "bad interval"); | |
1365 uintptr_t diff = max ^ min; | |
1366 | |
1367 // throw away enough low-order bits to make the diff vanish | |
1368 uintptr_t mask = (uintptr_t)(-1); | |
1369 while ((mask & diff) != 0) | |
1370 mask <<= 1; | |
1371 uintptr_t bits = (min & mask); | |
1372 assert(bits == (max & mask), "correct mask"); | |
1373 // check an intermediate value between min and max, just to make sure: | |
1374 assert(bits == ((min + (max-min)/2) & mask), "correct mask"); | |
1375 | |
1376 // require address alignment, too: | |
1377 mask |= (alignSize - 1); | |
1378 | |
1379 if (!(verify_data[0] == 0 && verify_data[1] == (uintptr_t)-1)) { | |
1380 assert(verify_data[0] == mask && verify_data[1] == bits, "mask stability"); | |
1381 } | |
1382 verify_data[0] = mask; | |
1383 verify_data[1] = bits; | |
1384 } | |
1385 | |
1386 // Oop verification (see MacroAssembler::verify_oop) | |
1387 | |
1388 uintptr_t Universe::verify_oop_mask() { | |
1389 MemRegion m = heap()->reserved_region(); | |
1390 calculate_verify_data(_verify_oop_data, | |
1391 m.start(), | |
1392 m.end()); | |
1393 return _verify_oop_data[0]; | |
1394 } | |
1395 | |
1396 | |
1397 | |
1398 uintptr_t Universe::verify_oop_bits() { | |
1399 verify_oop_mask(); | |
1400 return _verify_oop_data[1]; | |
1401 } | |
1402 | |
1403 uintptr_t Universe::verify_mark_mask() { | |
1404 return markOopDesc::lock_mask_in_place; | |
1405 } | |
1406 | |
1407 uintptr_t Universe::verify_mark_bits() { | |
1408 intptr_t mask = verify_mark_mask(); | |
1409 intptr_t bits = (intptr_t)markOopDesc::prototype(); | |
1410 assert((bits & ~mask) == 0, "no stray header bits"); | |
1411 return bits; | |
1412 } | |
1413 #endif // PRODUCT | |
1414 | |
1415 | |
1416 void Universe::compute_verify_oop_data() { | |
1417 verify_oop_mask(); | |
1418 verify_oop_bits(); | |
1419 verify_mark_mask(); | |
1420 verify_mark_bits(); | |
1421 } | |
1422 | |
1423 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1424 void CommonMethodOopCache::init(Klass* k, Method* m, TRAPS) { |
0 | 1425 if (!UseSharedSpaces) { |
1426 _klass = k; | |
1427 } | |
1428 #ifndef PRODUCT | |
1429 else { | |
1430 // sharing initilization should have already set up _klass | |
1431 assert(_klass != NULL, "just checking"); | |
1432 } | |
1433 #endif | |
1434 | |
1435 _method_idnum = m->method_idnum(); | |
1436 assert(_method_idnum >= 0, "sanity check"); | |
1437 } | |
1438 | |
1439 | |
1440 ActiveMethodOopsCache::~ActiveMethodOopsCache() { | |
1441 if (_prev_methods != NULL) { | |
1442 delete _prev_methods; | |
1443 _prev_methods = NULL; | |
1444 } | |
1445 } | |
1446 | |
1447 | |
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1448 void ActiveMethodOopsCache::add_previous_version(Method* method) { |
0 | 1449 assert(Thread::current()->is_VM_thread(), |
1450 "only VMThread can add previous versions"); | |
1451 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1452 // Only append the previous method if it is executing on the stack. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1453 if (method->on_stack()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1454 |
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1455 if (_prev_methods == NULL) { |
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1456 // This is the first previous version so make some space. |
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1457 // Start with 2 elements under the assumption that the class |
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1458 // won't be redefined much. |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1459 _prev_methods = new (ResourceObj::C_HEAP, mtClass) GrowableArray<Method*>(2, true); |
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1460 } |
0 | 1461 |
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1462 // RC_TRACE macro has an embedded ResourceMark |
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1463 RC_TRACE(0x00000100, |
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1464 ("add: %s(%s): adding prev version ref for cached method @%d", |
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1465 method->name()->as_C_string(), method->signature()->as_C_string(), |
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1466 _prev_methods->length())); |
0 | 1467 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1468 _prev_methods->append(method); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1469 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1470 |
0 | 1471 |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1472 // Since the caller is the VMThread and we are at a safepoint, this is a good |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1473 // time to clear out unused method references. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1474 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1475 if (_prev_methods == NULL) return; |
0 | 1476 |
1477 for (int i = _prev_methods->length() - 1; i >= 0; i--) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1478 Method* method = _prev_methods->at(i); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1479 assert(method != NULL, "weak method ref was unexpectedly cleared"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1480 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1481 if (!method->on_stack()) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1482 // This method isn't running anymore so remove it |
0 | 1483 _prev_methods->remove_at(i); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1484 MetadataFactory::free_metadata(method->method_holder()->class_loader_data(), method); |
0 | 1485 } else { |
1486 // RC_TRACE macro has an embedded ResourceMark | |
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1487 RC_TRACE(0x00000400, |
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1488 ("add: %s(%s): previous cached method @%d is alive", |
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1489 method->name()->as_C_string(), method->signature()->as_C_string(), i)); |
0 | 1490 } |
1491 } | |
1492 } // end add_previous_version() | |
1493 | |
1494 | |
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1495 bool ActiveMethodOopsCache::is_same_method(const Method* method) const { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1496 InstanceKlass* ik = InstanceKlass::cast(klass()); |
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1497 const Method* check_method = ik->method_with_idnum(method_idnum()); |
0 | 1498 assert(check_method != NULL, "sanity check"); |
1499 if (check_method == method) { | |
1500 // done with the easy case | |
1501 return true; | |
1502 } | |
1503 | |
1504 if (_prev_methods != NULL) { | |
1505 // The cached method has been redefined at least once so search | |
1506 // the previous versions for a match. | |
1507 for (int i = 0; i < _prev_methods->length(); i++) { | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1508 check_method = _prev_methods->at(i); |
0 | 1509 if (check_method == method) { |
1510 // a previous version matches | |
1511 return true; | |
1512 } | |
1513 } | |
1514 } | |
1515 | |
1516 // either no previous versions or no previous version matched | |
1517 return false; | |
1518 } | |
1519 | |
1520 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1521 Method* LatestMethodOopCache::get_Method() { |
11010 | 1522 if (klass() == NULL) return NULL; |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1523 InstanceKlass* ik = InstanceKlass::cast(klass()); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1524 Method* m = ik->method_with_idnum(method_idnum()); |
0 | 1525 assert(m != NULL, "sanity check"); |
1526 return m; | |
1527 } | |
1528 | |
1529 | |
1530 #ifdef ASSERT | |
1531 // Release dummy object(s) at bottom of heap | |
1532 bool Universe::release_fullgc_alot_dummy() { | |
1533 MutexLocker ml(FullGCALot_lock); | |
1534 if (_fullgc_alot_dummy_array != NULL) { | |
1535 if (_fullgc_alot_dummy_next >= _fullgc_alot_dummy_array->length()) { | |
1536 // No more dummies to release, release entire array instead | |
1537 _fullgc_alot_dummy_array = NULL; | |
1538 return false; | |
1539 } | |
1540 if (!UseConcMarkSweepGC) { | |
1541 // Release dummy at bottom of old generation | |
1542 _fullgc_alot_dummy_array->obj_at_put(_fullgc_alot_dummy_next++, NULL); | |
1543 } | |
1544 // Release dummy at bottom of permanent generation | |
1545 _fullgc_alot_dummy_array->obj_at_put(_fullgc_alot_dummy_next++, NULL); | |
1546 } | |
1547 return true; | |
1548 } | |
1549 | |
1550 #endif // ASSERT |