Mercurial > hg > truffle
annotate src/share/vm/memory/universe.cpp @ 11019:eaf3742822ec
Merge
| author | chegar |
|---|---|
| date | Mon, 17 Jun 2013 11:17:49 +0100 |
| parents | ce9ecec70f99 0def34ab1c98 |
| children | 3a0774193f71 |
| 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) { | |
|
10358
0def34ab1c98
8015007: Incorrect print format in error message for VM cannot allocate the requested heap
tamao
parents:
10265
diff
changeset
|
233 vm_exit_during_initialization( |
|
0def34ab1c98
8015007: Incorrect print format in error message for VM cannot allocate the requested heap
tamao
parents:
10265
diff
changeset
|
234 err_msg("Size of %s (" UINTX_FORMAT " bytes) must be aligned to " UINTX_FORMAT " bytes", name, size, alignment)); |
| 0 | 235 } |
| 236 } | |
| 237 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
238 void initialize_basic_type_klass(Klass* k, TRAPS) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
239 Klass* ok = SystemDictionary::Object_klass(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
240 if (UseSharedSpaces) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
241 assert(k->super() == ok, "u3"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
242 k->restore_unshareable_info(CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
243 } else { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
244 k->initialize_supers(ok, CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
245 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
246 k->append_to_sibling_list(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
247 } |
| 0 | 248 |
| 249 void Universe::genesis(TRAPS) { | |
| 250 ResourceMark rm; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
251 |
| 0 | 252 { FlagSetting fs(_bootstrapping, true); |
| 253 | |
| 254 { MutexLocker mc(Compile_lock); | |
| 255 | |
| 256 // determine base vtable size; without that we cannot create the array klasses | |
| 257 compute_base_vtable_size(); | |
| 258 | |
| 259 if (!UseSharedSpaces) { | |
|
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
260 _boolArrayKlassObj = TypeArrayKlass::create_klass(T_BOOLEAN, sizeof(jboolean), CHECK); |
|
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
261 _charArrayKlassObj = TypeArrayKlass::create_klass(T_CHAR, sizeof(jchar), CHECK); |
|
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
262 _singleArrayKlassObj = TypeArrayKlass::create_klass(T_FLOAT, sizeof(jfloat), CHECK); |
|
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
263 _doubleArrayKlassObj = TypeArrayKlass::create_klass(T_DOUBLE, sizeof(jdouble), CHECK); |
|
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
264 _byteArrayKlassObj = TypeArrayKlass::create_klass(T_BYTE, sizeof(jbyte), CHECK); |
|
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
265 _shortArrayKlassObj = TypeArrayKlass::create_klass(T_SHORT, sizeof(jshort), CHECK); |
|
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
266 _intArrayKlassObj = TypeArrayKlass::create_klass(T_INT, sizeof(jint), CHECK); |
|
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
267 _longArrayKlassObj = TypeArrayKlass::create_klass(T_LONG, sizeof(jlong), CHECK); |
| 0 | 268 |
| 269 _typeArrayKlassObjs[T_BOOLEAN] = _boolArrayKlassObj; | |
| 270 _typeArrayKlassObjs[T_CHAR] = _charArrayKlassObj; | |
| 271 _typeArrayKlassObjs[T_FLOAT] = _singleArrayKlassObj; | |
| 272 _typeArrayKlassObjs[T_DOUBLE] = _doubleArrayKlassObj; | |
| 273 _typeArrayKlassObjs[T_BYTE] = _byteArrayKlassObj; | |
| 274 _typeArrayKlassObjs[T_SHORT] = _shortArrayKlassObj; | |
| 275 _typeArrayKlassObjs[T_INT] = _intArrayKlassObj; | |
| 276 _typeArrayKlassObjs[T_LONG] = _longArrayKlassObj; | |
| 277 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
278 ClassLoaderData* null_cld = ClassLoaderData::the_null_class_loader_data(); |
| 0 | 279 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
280 _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
|
281 _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
|
282 _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
|
283 _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
|
284 _the_empty_klass_array = MetadataFactory::new_array<Klass*>(null_cld, 0, CHECK); |
| 0 | 285 } |
| 286 } | |
| 287 | |
| 288 vmSymbols::initialize(CHECK); | |
| 289 | |
| 290 SystemDictionary::initialize(CHECK); | |
| 291 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
292 Klass* ok = SystemDictionary::Object_klass(); |
| 0 | 293 |
|
1080
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
294 _the_null_string = StringTable::intern("null", CHECK); |
|
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
295 _the_min_jint_string = StringTable::intern("-2147483648", CHECK); |
|
7c57aead6d3e
6892658: C2 should optimize some stringbuilder patterns
never
parents:
1057
diff
changeset
|
296 |
| 0 | 297 if (UseSharedSpaces) { |
| 298 // Verify shared interfaces array. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
299 assert(_the_array_interfaces_array->at(0) == |
| 1142 | 300 SystemDictionary::Cloneable_klass(), "u3"); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
301 assert(_the_array_interfaces_array->at(1) == |
| 1142 | 302 SystemDictionary::Serializable_klass(), "u3"); |
| 0 | 303 } else { |
| 304 // 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
|
305 _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
|
306 _the_array_interfaces_array->at_put(1, SystemDictionary::Serializable_klass()); |
| 0 | 307 } |
| 308 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
309 initialize_basic_type_klass(boolArrayKlassObj(), CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
310 initialize_basic_type_klass(charArrayKlassObj(), CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
311 initialize_basic_type_klass(singleArrayKlassObj(), CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
312 initialize_basic_type_klass(doubleArrayKlassObj(), CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
313 initialize_basic_type_klass(byteArrayKlassObj(), CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
314 initialize_basic_type_klass(shortArrayKlassObj(), CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
315 initialize_basic_type_klass(intArrayKlassObj(), CHECK); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
316 initialize_basic_type_klass(longArrayKlassObj(), CHECK); |
| 0 | 317 } // end of core bootstrapping |
| 318 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
319 // 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
|
320 // during the bootstrapping. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
321 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
322 // OLD |
| 0 | 323 // Initialize _objectArrayKlass after core bootstraping to make |
| 324 // 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
|
325 // --- |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
326 // NEW |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
327 // 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
|
328 // ordinary object arrays, _objectArrayKlass will be loaded when |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
329 // 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
|
330 // 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
|
331 _objectArrayKlassObj = InstanceKlass:: |
| 1142 | 332 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
|
333 // OLD |
| 0 | 334 // Add the class to the class hierarchy manually to make sure that |
| 335 // 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
|
336 // --- |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
337 // New |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
338 // Have already been initialized. |
| 6983 | 339 _objectArrayKlassObj->append_to_sibling_list(); |
| 0 | 340 |
| 341 // Compute is_jdk version flags. | |
| 342 // Only 1.3 or later has the java.lang.Shutdown class. | |
| 343 // Only 1.4 or later has the java.lang.CharSequence interface. | |
| 344 // Only 1.5 or later has the java.lang.management.MemoryUsage class. | |
| 242 | 345 if (JDK_Version::is_partially_initialized()) { |
| 346 uint8_t jdk_version; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
347 Klass* k = SystemDictionary::resolve_or_null( |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
348 vmSymbols::java_lang_management_MemoryUsage(), THREAD); |
| 0 | 349 CLEAR_PENDING_EXCEPTION; // ignore exceptions |
| 350 if (k == NULL) { | |
| 242 | 351 k = SystemDictionary::resolve_or_null( |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
352 vmSymbols::java_lang_CharSequence(), THREAD); |
| 0 | 353 CLEAR_PENDING_EXCEPTION; // ignore exceptions |
| 354 if (k == NULL) { | |
| 242 | 355 k = SystemDictionary::resolve_or_null( |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
356 vmSymbols::java_lang_Shutdown(), THREAD); |
| 0 | 357 CLEAR_PENDING_EXCEPTION; // ignore exceptions |
| 358 if (k == NULL) { | |
| 242 | 359 jdk_version = 2; |
| 0 | 360 } else { |
| 242 | 361 jdk_version = 3; |
| 0 | 362 } |
| 363 } else { | |
| 242 | 364 jdk_version = 4; |
| 0 | 365 } |
| 366 } else { | |
| 242 | 367 jdk_version = 5; |
| 0 | 368 } |
| 242 | 369 JDK_Version::fully_initialize(jdk_version); |
| 0 | 370 } |
| 371 | |
| 372 #ifdef ASSERT | |
| 373 if (FullGCALot) { | |
| 374 // Allocate an array of dummy objects. | |
| 375 // We'd like these to be at the bottom of the old generation, | |
| 376 // so that when we free one and then collect, | |
| 377 // (almost) the whole heap moves | |
| 378 // and we find out if we actually update all the oops correctly. | |
| 379 // But we can't allocate directly in the old generation, | |
| 380 // so we allocate wherever, and hope that the first collection | |
| 381 // moves these objects to the bottom of the old generation. | |
| 382 // We can allocate directly in the permanent generation, so we do. | |
| 383 int size; | |
| 384 if (UseConcMarkSweepGC) { | |
| 385 warning("Using +FullGCALot with concurrent mark sweep gc " | |
| 386 "will not force all objects to relocate"); | |
| 387 size = FullGCALotDummies; | |
| 388 } else { | |
| 389 size = FullGCALotDummies * 2; | |
| 390 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
391 objArrayOop naked_array = oopFactory::new_objArray(SystemDictionary::Object_klass(), size, CHECK); |
| 0 | 392 objArrayHandle dummy_array(THREAD, naked_array); |
| 393 int i = 0; | |
| 394 while (i < size) { | |
| 395 // Allocate dummy in old generation | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
396 oop dummy = InstanceKlass::cast(SystemDictionary::Object_klass())->allocate_instance(CHECK); |
| 0 | 397 dummy_array->obj_at_put(i++, dummy); |
| 398 } | |
| 399 { | |
| 400 // Only modify the global variable inside the mutex. | |
| 401 // If we had a race to here, the other dummy_array instances | |
| 402 // and their elements just get dropped on the floor, which is fine. | |
| 403 MutexLocker ml(FullGCALot_lock); | |
| 404 if (_fullgc_alot_dummy_array == NULL) { | |
| 405 _fullgc_alot_dummy_array = dummy_array(); | |
| 406 } | |
| 407 } | |
| 408 assert(i == _fullgc_alot_dummy_array->length(), "just checking"); | |
| 409 } | |
| 410 #endif | |
|
7185
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
411 |
|
90273fc0a981
8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap
coleenp
parents:
7180
diff
changeset
|
412 // 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
|
413 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
|
414 |
| 0 | 415 } |
| 416 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
417 // 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
|
418 // 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
|
419 // 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
|
420 // 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
|
421 // 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
|
422 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
|
423 guarantee((*n) < count, "vtable list too small"); |
|
7176
59c790074993
8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents:
6985
diff
changeset
|
424 void* vtable = dereference_vptr(o); |
|
59c790074993
8003635: NPG: AsynchGetCallTrace broken by Method* virtual call
coleenp
parents:
6985
diff
changeset
|
425 assert(*(void**)(vtable) != NULL, "invalid vtable"); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
426 list[(*n)++] = vtable; |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
427 } |
| 0 | 428 |
| 429 void Universe::init_self_patching_vtbl_list(void** list, int count) { | |
| 430 int n = 0; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
431 { InstanceKlass o; add_vtable(list, &n, &o, count); } |
|
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
432 { InstanceClassLoaderKlass o; add_vtable(list, &n, &o, count); } |
|
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
433 { InstanceMirrorKlass o; add_vtable(list, &n, &o, count); } |
|
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
434 { InstanceRefKlass o; add_vtable(list, &n, &o, count); } |
|
6831
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
435 { TypeArrayKlass o; add_vtable(list, &n, &o, count); } |
|
d8ce2825b193
8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents:
6751
diff
changeset
|
436 { 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
|
437 { Method o; add_vtable(list, &n, &o, count); } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
438 { ConstantPool o; add_vtable(list, &n, &o, count); } |
| 0 | 439 } |
| 440 | |
| 441 void Universe::initialize_basic_type_mirrors(TRAPS) { | |
| 442 assert(_int_mirror==NULL, "basic type mirrors already initialized"); | |
| 443 _int_mirror = | |
| 444 java_lang_Class::create_basic_type_mirror("int", T_INT, CHECK); | |
| 445 _float_mirror = | |
| 446 java_lang_Class::create_basic_type_mirror("float", T_FLOAT, CHECK); | |
| 447 _double_mirror = | |
| 448 java_lang_Class::create_basic_type_mirror("double", T_DOUBLE, CHECK); | |
| 449 _byte_mirror = | |
| 450 java_lang_Class::create_basic_type_mirror("byte", T_BYTE, CHECK); | |
| 451 _bool_mirror = | |
| 452 java_lang_Class::create_basic_type_mirror("boolean",T_BOOLEAN, CHECK); | |
| 453 _char_mirror = | |
| 454 java_lang_Class::create_basic_type_mirror("char", T_CHAR, CHECK); | |
| 455 _long_mirror = | |
| 456 java_lang_Class::create_basic_type_mirror("long", T_LONG, CHECK); | |
| 457 _short_mirror = | |
| 458 java_lang_Class::create_basic_type_mirror("short", T_SHORT, CHECK); | |
| 459 _void_mirror = | |
| 460 java_lang_Class::create_basic_type_mirror("void", T_VOID, CHECK); | |
| 461 | |
| 462 _mirrors[T_INT] = _int_mirror; | |
| 463 _mirrors[T_FLOAT] = _float_mirror; | |
| 464 _mirrors[T_DOUBLE] = _double_mirror; | |
| 465 _mirrors[T_BYTE] = _byte_mirror; | |
| 466 _mirrors[T_BOOLEAN] = _bool_mirror; | |
| 467 _mirrors[T_CHAR] = _char_mirror; | |
| 468 _mirrors[T_LONG] = _long_mirror; | |
| 469 _mirrors[T_SHORT] = _short_mirror; | |
| 470 _mirrors[T_VOID] = _void_mirror; | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
471 //_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
|
472 //_mirrors[T_ARRAY] = InstanceKlass::cast(_object_klass)->java_mirror(); |
| 0 | 473 } |
| 474 | |
| 475 void Universe::fixup_mirrors(TRAPS) { | |
| 476 // Bootstrap problem: all classes gets a mirror (java.lang.Class instance) assigned eagerly, | |
| 477 // but we cannot do that for classes created before java.lang.Class is loaded. Here we simply | |
| 478 // walk over permanent objects created so far (mostly classes) and fixup their mirrors. Note | |
| 479 // that the number of objects allocated at this point is very small. | |
| 1142 | 480 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
|
481 HandleMark hm(THREAD); |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2375
diff
changeset
|
482 // Cache the start of the static fields |
|
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
483 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
|
484 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
485 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
|
486 int list_length = list->length(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
487 for (int i = 0; i < list_length; i++) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
488 Klass* k = list->at(i); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
489 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
|
490 EXCEPTION_MARK; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
491 KlassHandle kh(THREAD, k); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
492 java_lang_Class::fixup_mirror(kh, CATCH); |
| 0 | 493 } |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
494 delete java_lang_Class::fixup_mirror_list(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
495 java_lang_Class::set_fixup_mirror_list(NULL); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
496 } |
| 0 | 497 |
| 498 static bool has_run_finalizers_on_exit = false; | |
| 499 | |
| 500 void Universe::run_finalizers_on_exit() { | |
| 501 if (has_run_finalizers_on_exit) return; | |
| 502 has_run_finalizers_on_exit = true; | |
| 503 | |
| 504 // Called on VM exit. This ought to be run in a separate thread. | |
| 505 if (TraceReferenceGC) tty->print_cr("Callback to run finalizers on exit"); | |
| 506 { | |
| 507 PRESERVE_EXCEPTION_MARK; | |
| 1142 | 508 KlassHandle finalizer_klass(THREAD, SystemDictionary::Finalizer_klass()); |
| 0 | 509 JavaValue result(T_VOID); |
| 510 JavaCalls::call_static( | |
| 511 &result, | |
| 512 finalizer_klass, | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
513 vmSymbols::run_finalizers_on_exit_name(), |
|
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
514 vmSymbols::void_method_signature(), |
| 0 | 515 THREAD |
| 516 ); | |
| 517 // Ignore any pending exceptions | |
| 518 CLEAR_PENDING_EXCEPTION; | |
| 519 } | |
| 520 } | |
| 521 | |
| 522 | |
| 523 // initialize_vtable could cause gc if | |
| 524 // 1) we specified true to initialize_vtable and | |
| 525 // 2) this ran after gc was enabled | |
| 526 // In case those ever change we use handles for oops | |
| 527 void Universe::reinitialize_vtable_of(KlassHandle k_h, TRAPS) { | |
| 528 // init vtable of k and all subclasses | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
529 Klass* ko = k_h(); |
| 0 | 530 klassVtable* vt = ko->vtable(); |
| 531 if (vt) vt->initialize_vtable(false, CHECK); | |
| 532 if (ko->oop_is_instance()) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
533 InstanceKlass* ik = (InstanceKlass*)ko; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
534 for (KlassHandle s_h(THREAD, ik->subklass()); s_h() != NULL; s_h = (THREAD, s_h()->next_sibling())) { |
| 0 | 535 reinitialize_vtable_of(s_h, CHECK); |
| 536 } | |
| 537 } | |
| 538 } | |
| 539 | |
| 540 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
541 void initialize_itable_for_klass(Klass* k, TRAPS) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
542 InstanceKlass::cast(k)->itable()->initialize_itable(false, CHECK); |
| 0 | 543 } |
| 544 | |
| 545 | |
| 546 void Universe::reinitialize_itables(TRAPS) { | |
| 547 SystemDictionary::classes_do(initialize_itable_for_klass, CHECK); | |
| 548 | |
| 549 } | |
| 550 | |
| 551 | |
| 552 bool Universe::on_page_boundary(void* addr) { | |
| 553 return ((uintptr_t) addr) % os::vm_page_size() == 0; | |
| 554 } | |
| 555 | |
| 556 | |
| 557 bool Universe::should_fill_in_stack_trace(Handle throwable) { | |
| 558 // never attempt to fill in the stack trace of preallocated errors that do not have | |
| 559 // backtrace. These errors are kept alive forever and may be "re-used" when all | |
| 560 // preallocated errors with backtrace have been consumed. Also need to avoid | |
| 561 // a potential loop which could happen if an out of memory occurs when attempting | |
| 562 // to allocate the backtrace. | |
| 563 return ((throwable() != Universe::_out_of_memory_error_java_heap) && | |
| 564 (throwable() != Universe::_out_of_memory_error_perm_gen) && | |
| 565 (throwable() != Universe::_out_of_memory_error_array_size) && | |
| 566 (throwable() != Universe::_out_of_memory_error_gc_overhead_limit)); | |
| 567 } | |
| 568 | |
| 569 | |
| 570 oop Universe::gen_out_of_memory_error(oop default_err) { | |
| 571 // generate an out of memory error: | |
| 572 // - if there is a preallocated error with backtrace available then return it wth | |
| 573 // a filled in stack trace. | |
| 574 // - if there are no preallocated errors with backtrace available then return | |
| 575 // an error without backtrace. | |
| 576 int next; | |
| 577 if (_preallocated_out_of_memory_error_avail_count > 0) { | |
| 578 next = (int)Atomic::add(-1, &_preallocated_out_of_memory_error_avail_count); | |
| 579 assert(next < (int)PreallocatedOutOfMemoryErrorCount, "avail count is corrupt"); | |
| 580 } else { | |
| 581 next = -1; | |
| 582 } | |
| 583 if (next < 0) { | |
| 584 // all preallocated errors have been used. | |
| 585 // return default | |
| 586 return default_err; | |
| 587 } else { | |
| 588 // get the error object at the slot and set set it to NULL so that the | |
| 589 // array isn't keeping it alive anymore. | |
| 590 oop exc = preallocated_out_of_memory_errors()->obj_at(next); | |
| 591 assert(exc != NULL, "slot has been used already"); | |
| 592 preallocated_out_of_memory_errors()->obj_at_put(next, NULL); | |
| 593 | |
| 594 // use the message from the default error | |
| 595 oop msg = java_lang_Throwable::message(default_err); | |
| 596 assert(msg != NULL, "no message"); | |
| 597 java_lang_Throwable::set_message(exc, msg); | |
| 598 | |
| 599 // populate the stack trace and return it. | |
| 600 java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(exc); | |
| 601 return exc; | |
| 602 } | |
| 603 } | |
| 604 | |
| 605 static intptr_t non_oop_bits = 0; | |
| 606 | |
| 607 void* Universe::non_oop_word() { | |
| 608 // Neither the high bits nor the low bits of this value is allowed | |
| 609 // to look like (respectively) the high or low bits of a real oop. | |
| 610 // | |
| 611 // High and low are CPU-specific notions, but low always includes | |
| 612 // the low-order bit. Since oops are always aligned at least mod 4, | |
| 613 // setting the low-order bit will ensure that the low half of the | |
| 614 // word will never look like that of a real oop. | |
| 615 // | |
| 616 // Using the OS-supplied non-memory-address word (usually 0 or -1) | |
| 617 // will take care of the high bits, however many there are. | |
| 618 | |
| 619 if (non_oop_bits == 0) { | |
| 620 non_oop_bits = (intptr_t)os::non_memory_address_word() | 1; | |
| 621 } | |
| 622 | |
| 623 return (void*)non_oop_bits; | |
| 624 } | |
| 625 | |
| 626 jint universe_init() { | |
| 627 assert(!Universe::_fully_initialized, "called after initialize_vtables"); | |
| 628 guarantee(1 << LogHeapWordSize == sizeof(HeapWord), | |
| 629 "LogHeapWordSize is incorrect."); | |
| 630 guarantee(sizeof(oop) >= sizeof(HeapWord), "HeapWord larger than oop?"); | |
| 631 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
|
632 "oop size is not not a multiple of HeapWord size"); |
| 0 | 633 TraceTime timer("Genesis", TraceStartupTime); |
| 634 GC_locker::lock(); // do not allow gc during bootstrapping | |
| 635 JavaClasses::compute_hard_coded_offsets(); | |
| 636 | |
| 637 jint status = Universe::initialize_heap(); | |
| 638 if (status != JNI_OK) { | |
| 639 return status; | |
| 640 } | |
| 641 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
642 // 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
|
643 // DumpSharedSpaces. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
644 ClassLoaderData::init_null_class_loader_data(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
645 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
646 // 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
|
647 // Metaspace::initialize_shared_spaces() tries to populate them. |
| 0 | 648 Universe::_finalizer_register_cache = new LatestMethodOopCache(); |
|
6751
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
649 Universe::_loader_addClass_cache = new LatestMethodOopCache(); |
| 11010 | 650 Universe::_pd_implies_cache = new LatestMethodOopCache(); |
| 0 | 651 Universe::_reflect_invoke_cache = new ActiveMethodOopsCache(); |
| 652 | |
| 653 if (UseSharedSpaces) { | |
| 654 // Read the data structures supporting the shared spaces (shared | |
| 655 // system dictionary, symbol table, etc.). After that, access to | |
| 656 // the file (other than the mapped regions) is no longer needed, and | |
| 657 // the file is closed. Closing the file does not affect the | |
| 658 // currently mapped regions. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
659 MetaspaceShared::initialize_shared_spaces(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
660 StringTable::create_table(); |
| 0 | 661 } else { |
| 662 SymbolTable::create_table(); | |
| 663 StringTable::create_table(); | |
| 664 ClassLoader::create_package_info_table(); | |
| 665 } | |
| 666 | |
| 667 return JNI_OK; | |
| 668 } | |
| 669 | |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
670 // 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
|
671 // when compressed oops are used: |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
672 // 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
|
673 // NarrowOopHeapBaseMin + heap_size < 4Gb |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
674 // 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
|
675 // NarrowOopHeapBaseMin + heap_size < 32Gb |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
676 // 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
|
677 |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
678 // 4Gb |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
679 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
|
680 // 32Gb |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1507
diff
changeset
|
681 // OopEncodingHeapMax == NarrowOopHeapMax << LogMinObjAlignmentInBytes; |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
682 |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
683 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
|
684 size_t base = 0; |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
685 #ifdef _LP64 |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
686 if (UseCompressedOops) { |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
687 assert(mode == UnscaledNarrowOop || |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
688 mode == ZeroBasedNarrowOop || |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
689 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
|
690 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
|
691 // Return specified base for the first request. |
|
1a81ea4b45d4
6869822: assert(Universe::narrow_oop_shift() == 0,"use unscaled narrow oop")
kvn
parents:
845
diff
changeset
|
692 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
|
693 base = HeapBaseMinAddress; |
|
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
694 |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
695 // 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
|
696 // UnscaledNarrowOop then just use UnscaledNarrowOop. |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
697 } else if ((total_size <= OopEncodingHeapMax) && (mode != HeapBasedNarrowOop) && |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
698 (!UseCompressedKlassPointers || |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
699 (((OopEncodingHeapMax - heap_size) + Universe::class_metaspace_size()) <= KlassEncodingMetaspaceMax))) { |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
700 // 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
|
701 // than total_size. |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
702 if ((total_size <= NarrowOopHeapMax) && (mode == UnscaledNarrowOop) && |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
703 (Universe::narrow_oop_shift() == 0)) { |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
704 // Use 32-bits oops without encoding and |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
705 // 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
|
706 base = (NarrowOopHeapMax - heap_size); |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
707 } else { |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
708 // Can't reserve with NarrowOopShift == 0 |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
709 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes); |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
710 if (mode == UnscaledNarrowOop || |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
711 mode == ZeroBasedNarrowOop && total_size <= NarrowOopHeapMax) { |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
712 // 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
|
713 // 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
|
714 // 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
|
715 base = (OopEncodingHeapMax - heap_size); |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
716 } |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
717 } |
|
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
718 |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
719 // 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
|
720 // (KlassEncodingMetaspaceMax - class_metaspace_size()). |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
721 } else if (UseCompressedKlassPointers && (mode != HeapBasedNarrowOop) && |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
722 (Universe::class_metaspace_size() + HeapBaseMinAddress <= KlassEncodingMetaspaceMax) && |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
723 (KlassEncodingMetaspaceMax + heap_size - Universe::class_metaspace_size() <= OopEncodingHeapMax)) { |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
724 base = (KlassEncodingMetaspaceMax - Universe::class_metaspace_size()); |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
725 } else { |
|
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
726 // 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
|
727 // 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
|
728 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes); |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
729 } |
|
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
730 |
|
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
731 // 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
|
732 // 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
|
733 // 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
|
734 if ((base != 0) && ((base + heap_size) <= OopEncodingHeapMax) && |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
735 (!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
|
736 // 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
|
737 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
|
738 // 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
|
739 // 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
|
740 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
|
741 } else { |
|
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
742 // 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
|
743 // 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
|
744 // 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
|
745 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
|
746 #ifdef _WIN64 |
|
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
747 if (UseLargePages) { |
|
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
748 // 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
|
749 // 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
|
750 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
|
751 } |
|
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
752 #endif // _WIN64 |
|
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
753 } |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
754 } |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
755 #endif |
|
1057
f334aec453a1
6896084: VM does not reserve protected page below heap for compressed oops implicit null checks
kvn
parents:
922
diff
changeset
|
756 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
|
757 } |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
758 |
| 0 | 759 jint Universe::initialize_heap() { |
| 760 | |
| 761 if (UseParallelGC) { | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
762 #if INCLUDE_ALL_GCS |
| 0 | 763 Universe::_collectedHeap = new ParallelScavengeHeap(); |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
764 #else // INCLUDE_ALL_GCS |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6751
diff
changeset
|
765 fatal("UseParallelGC not supported in this VM."); |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
766 #endif // INCLUDE_ALL_GCS |
| 0 | 767 |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
768 } else if (UseG1GC) { |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
769 #if INCLUDE_ALL_GCS |
| 4013 | 770 G1CollectorPolicy* g1p = new G1CollectorPolicy(); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
771 G1CollectedHeap* g1h = new G1CollectedHeap(g1p); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
772 Universe::_collectedHeap = g1h; |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
773 #else // INCLUDE_ALL_GCS |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
774 fatal("UseG1GC not supported in java kernel vm."); |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
775 #endif // INCLUDE_ALL_GCS |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
776 |
| 0 | 777 } else { |
| 778 GenCollectorPolicy *gc_policy; | |
| 779 | |
| 780 if (UseSerialGC) { | |
| 781 gc_policy = new MarkSweepPolicy(); | |
| 782 } else if (UseConcMarkSweepGC) { | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
783 #if INCLUDE_ALL_GCS |
| 0 | 784 if (UseAdaptiveSizePolicy) { |
| 785 gc_policy = new ASConcurrentMarkSweepPolicy(); | |
| 786 } else { | |
| 787 gc_policy = new ConcurrentMarkSweepPolicy(); | |
| 788 } | |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
789 #else // INCLUDE_ALL_GCS |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6751
diff
changeset
|
790 fatal("UseConcMarkSweepGC not supported in this VM."); |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7187
diff
changeset
|
791 #endif // INCLUDE_ALL_GCS |
| 0 | 792 } else { // default old generation |
| 793 gc_policy = new MarkSweepPolicy(); | |
| 794 } | |
| 795 | |
| 796 Universe::_collectedHeap = new GenCollectedHeap(gc_policy); | |
| 797 } | |
| 798 | |
| 799 jint status = Universe::heap()->initialize(); | |
| 800 if (status != JNI_OK) { | |
| 801 return status; | |
| 802 } | |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
803 |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
804 #ifdef _LP64 |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
805 if (UseCompressedOops) { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
806 // 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
|
807 // 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
|
808 // 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
|
809 // See needs_explicit_null_check. |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
0
diff
changeset
|
810 // 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
|
811 // compressed oops for pstack code. |
| 2080 | 812 bool verbose = PrintCompressedOopsMode || (PrintMiscellaneous && Verbose); |
| 813 if (verbose) { | |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
814 tty->cr(); |
| 1963 | 815 tty->print("heap address: " PTR_FORMAT ", size: " SIZE_FORMAT " MB", |
| 816 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
|
817 } |
|
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
818 if (((uint64_t)Universe::heap()->reserved_region().end() > OopEncodingHeapMax) || |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
819 (UseCompressedKlassPointers && |
|
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
820 ((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
|
821 // Can't reserve heap below 32Gb. |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
822 // 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
|
823 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes); |
| 2080 | 824 if (verbose) { |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
825 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
|
826 } |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
827 } else { |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
828 Universe::set_narrow_oop_base(0); |
| 2080 | 829 if (verbose) { |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
830 tty->print(", zero based Compressed Oops"); |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
831 } |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
832 #ifdef _WIN64 |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
833 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
|
834 // 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
|
835 // mode with zero based Compressed Oops. |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
836 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
|
837 } |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
838 #endif // _WIN64 |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
839 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
|
840 // Can't reserve heap below 4Gb. |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
841 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes); |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
842 } else { |
|
922
1a81ea4b45d4
6869822: assert(Universe::narrow_oop_shift() == 0,"use unscaled narrow oop")
kvn
parents:
845
diff
changeset
|
843 Universe::set_narrow_oop_shift(0); |
| 2080 | 844 if (verbose) { |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
845 tty->print(", 32-bits Oops"); |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
846 } |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
847 } |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
848 } |
| 2080 | 849 if (verbose) { |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
850 tty->cr(); |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
851 tty->cr(); |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
852 } |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
853 if (UseCompressedKlassPointers) { |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
854 Universe::set_narrow_klass_base(Universe::narrow_oop_base()); |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
855 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
|
856 } |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
857 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
|
858 } |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
859 // Universe::narrow_oop_base() is one page below the metaspace |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
860 // base. The actual metaspace base depends on alignment constraints |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
861 // so we don't know its exact location here. |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
862 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
|
863 Universe::narrow_oop_base() == NULL, "invalid value"); |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
864 assert(Universe::narrow_oop_shift() == LogMinObjAlignmentInBytes || |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
865 Universe::narrow_oop_shift() == 0, "invalid value"); |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
494
diff
changeset
|
866 #endif |
| 0 | 867 |
| 868 // We will never reach the CATCH below since Exceptions::_throw will cause | |
| 869 // the VM to exit if an exception is thrown during initialization | |
| 870 | |
| 871 if (UseTLAB) { | |
| 872 assert(Universe::heap()->supports_tlab_allocation(), | |
| 873 "Should support thread-local allocation buffers"); | |
| 874 ThreadLocalAllocBuffer::startup_initialization(); | |
| 875 } | |
| 876 return JNI_OK; | |
| 877 } | |
| 878 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
879 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
880 // 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
|
881 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
|
882 // 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
|
883 // be compressed the same as instances. |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
884 // 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
|
885 // the actual alignment depends on its size. |
|
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
886 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
|
887 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
|
888 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
|
889 "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
|
890 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
|
891 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
892 ReservedHeapSpace total_rs(total_reserved, alignment, UseLargePages, addr); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
893 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
894 if (UseCompressedOops) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
895 if (addr != NULL && !total_rs.is_reserved()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
896 // 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
|
897 // 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
|
898 // Try again to reserver heap higher. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
899 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
|
900 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
901 ReservedHeapSpace total_rs0(total_reserved, alignment, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
902 UseLargePages, addr); |
|
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 if (addr != NULL && !total_rs0.is_reserved()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
905 // 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
|
906 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
|
907 assert(addr == NULL, ""); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
908 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
909 ReservedHeapSpace total_rs1(total_reserved, alignment, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
910 UseLargePages, addr); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
911 total_rs = total_rs1; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
912 } else { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
913 total_rs = total_rs0; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
914 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
915 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
916 } |
|
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 if (!total_rs.is_reserved()) { |
|
10358
0def34ab1c98
8015007: Incorrect print format in error message for VM cannot allocate the requested heap
tamao
parents:
10265
diff
changeset
|
919 vm_exit_during_initialization(err_msg("Could not reserve enough space for " SIZE_FORMAT "KB object heap", total_reserved/K)); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
920 return total_rs; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
921 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
922 |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
923 // 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
|
924 // 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
|
925 // 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
|
926 // 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
|
927 // 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
|
928 // 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
|
929 // unreachable. |
|
7982
10d5f25a7c67
8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops
hseigel
parents:
7623
diff
changeset
|
930 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
|
931 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
|
932 Metaspace::initialize_class_space(class_rs); |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
933 |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
934 if (UseCompressedOops) { |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
935 // Universe::initialize_heap() will reset this to NULL if unscaled |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
936 // or zero-based narrow oops are actually used. |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
937 address base = (address)(total_rs.base() - os::vm_page_size()); |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
938 Universe::set_narrow_oop_base(base); |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6751
diff
changeset
|
939 } |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
940 return heap_rs; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
941 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
942 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
943 |
| 0 | 944 // It's the caller's repsonsibility to ensure glitch-freedom |
| 945 // (if required). | |
| 946 void Universe::update_heap_info_at_gc() { | |
| 947 _heap_capacity_at_last_gc = heap()->capacity(); | |
| 948 _heap_used_at_last_gc = heap()->used(); | |
| 949 } | |
| 950 | |
| 951 | |
| 952 | |
| 953 void universe2_init() { | |
| 954 EXCEPTION_MARK; | |
| 955 Universe::genesis(CATCH); | |
| 956 } | |
| 957 | |
| 958 | |
| 959 // This function is defined in JVM.cpp | |
| 960 extern void initialize_converter_functions(); | |
| 961 | |
| 962 bool universe_post_init() { | |
|
1959
9eecf81a02fb
7000578: CMS: assert(SafepointSynchronize::is_at_safepoint()) failed: Else races are possible
ysr
parents:
1579
diff
changeset
|
963 assert(!is_init_completed(), "Error: initialization not yet completed!"); |
| 0 | 964 Universe::_fully_initialized = true; |
| 965 EXCEPTION_MARK; | |
| 966 { ResourceMark rm; | |
| 967 Interpreter::initialize(); // needed for interpreter entry points | |
| 968 if (!UseSharedSpaces) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
969 HandleMark hm(THREAD); |
| 1142 | 970 KlassHandle ok_h(THREAD, SystemDictionary::Object_klass()); |
| 0 | 971 Universe::reinitialize_vtable_of(ok_h, CHECK_false); |
| 972 Universe::reinitialize_itables(CHECK_false); | |
| 973 } | |
| 974 } | |
| 975 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
976 HandleMark hm(THREAD); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
977 Klass* k; |
| 0 | 978 instanceKlassHandle k_h; |
| 979 // Setup preallocated empty java.lang.Class array | |
| 1142 | 980 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
|
981 |
| 0 | 982 // Setup preallocated OutOfMemoryError errors |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
983 k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_OutOfMemoryError(), true, CHECK_false); |
| 0 | 984 k_h = instanceKlassHandle(THREAD, k); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
985 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
|
986 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
|
987 Universe::_out_of_memory_error_array_size = k_h->allocate_instance(CHECK_false); |
| 0 | 988 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
|
989 k_h->allocate_instance(CHECK_false); |
| 0 | 990 |
| 991 // Setup preallocated NullPointerException | |
| 992 // (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
|
993 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
|
994 Universe::_null_ptr_exception_instance = InstanceKlass::cast(k)->allocate_instance(CHECK_false); |
| 0 | 995 // Setup preallocated ArithmeticException |
| 996 // (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
|
997 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
|
998 Universe::_arithmetic_exception_instance = InstanceKlass::cast(k)->allocate_instance(CHECK_false); |
| 0 | 999 // Virtual Machine Error for when we get into a situation we can't resolve |
| 1000 k = SystemDictionary::resolve_or_fail( | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
1001 vmSymbols::java_lang_VirtualMachineError(), true, CHECK_false); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1002 bool linked = InstanceKlass::cast(k)->link_class_or_fail(CHECK_false); |
| 0 | 1003 if (!linked) { |
| 1004 tty->print_cr("Unable to link/verify VirtualMachineError class"); | |
| 1005 return false; // initialization failed | |
| 1006 } | |
| 1007 Universe::_virtual_machine_error_instance = | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1008 InstanceKlass::cast(k)->allocate_instance(CHECK_false); |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
1009 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1010 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
|
1011 |
| 0 | 1012 if (!DumpSharedSpaces) { |
| 1013 // These are the only Java fields that are currently set during shared space dumping. | |
| 1014 // We prefer to not handle this generally, so we always reinitialize these detail messages. | |
| 1015 Handle msg = java_lang_String::create_from_str("Java heap space", CHECK_false); | |
| 1016 java_lang_Throwable::set_message(Universe::_out_of_memory_error_java_heap, msg()); | |
| 1017 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1018 msg = java_lang_String::create_from_str("Metadata space", CHECK_false); |
| 0 | 1019 java_lang_Throwable::set_message(Universe::_out_of_memory_error_perm_gen, msg()); |
| 1020 | |
| 1021 msg = java_lang_String::create_from_str("Requested array size exceeds VM limit", CHECK_false); | |
| 1022 java_lang_Throwable::set_message(Universe::_out_of_memory_error_array_size, msg()); | |
| 1023 | |
| 1024 msg = java_lang_String::create_from_str("GC overhead limit exceeded", CHECK_false); | |
| 1025 java_lang_Throwable::set_message(Universe::_out_of_memory_error_gc_overhead_limit, msg()); | |
| 1026 | |
| 1027 msg = java_lang_String::create_from_str("/ by zero", CHECK_false); | |
| 1028 java_lang_Throwable::set_message(Universe::_arithmetic_exception_instance, msg()); | |
| 1029 | |
| 1030 // Setup the array of errors that have preallocated backtrace | |
| 1031 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
|
1032 assert(k->name() == vmSymbols::java_lang_OutOfMemoryError(), "should be out of memory error"); |
| 0 | 1033 k_h = instanceKlassHandle(THREAD, k); |
| 1034 | |
| 1035 int len = (StackTraceInThrowable) ? (int)PreallocatedOutOfMemoryErrorCount : 0; | |
| 1036 Universe::_preallocated_out_of_memory_error_array = oopFactory::new_objArray(k_h(), len, CHECK_false); | |
| 1037 for (int i=0; i<len; i++) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1038 oop err = k_h->allocate_instance(CHECK_false); |
| 0 | 1039 Handle err_h = Handle(THREAD, err); |
| 1040 java_lang_Throwable::allocate_backtrace(err_h, CHECK_false); | |
| 1041 Universe::preallocated_out_of_memory_errors()->obj_at_put(i, err_h()); | |
| 1042 } | |
| 1043 Universe::_preallocated_out_of_memory_error_avail_count = (jint)len; | |
| 1044 } | |
| 1045 | |
| 1046 | |
| 1047 // Setup static method for registering finalizers | |
| 1048 // The finalizer klass must be linked before looking up the method, in | |
| 1049 // case it needs to get rewritten. | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1050 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
|
1051 Method* m = InstanceKlass::cast(SystemDictionary::Finalizer_klass())->find_method( |
| 0 | 1052 vmSymbols::register_method_name(), |
| 1053 vmSymbols::register_method_signature()); | |
| 1054 if (m == NULL || !m->is_static()) { | |
| 1055 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodException(), | |
| 1056 "java.lang.ref.Finalizer.register", false); | |
| 1057 } | |
| 1058 Universe::_finalizer_register_cache->init( | |
| 1142 | 1059 SystemDictionary::Finalizer_klass(), m, CHECK_false); |
| 0 | 1060 |
| 1061 // Resolve on first use and initialize class. | |
| 1062 // Note: No race-condition here, since a resolve will always return the same result | |
| 1063 | |
| 1064 // Setup method for security checks | |
|
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
2080
diff
changeset
|
1065 k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_reflect_Method(), true, CHECK_false); |
| 0 | 1066 k_h = instanceKlassHandle(THREAD, k); |
| 1067 k_h->link_class(CHECK_false); | |
|
1507
cd5dbf694d45
6939134: JSR 292 adjustments to method handle invocation
jrose
parents:
1142
diff
changeset
|
1068 m = k_h->find_method(vmSymbols::invoke_name(), vmSymbols::object_object_array_object_signature()); |
| 0 | 1069 if (m == NULL || m->is_static()) { |
| 1070 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodException(), | |
| 1071 "java.lang.reflect.Method.invoke", false); | |
| 1072 } | |
| 1073 Universe::_reflect_invoke_cache->init(k_h(), m, CHECK_false); | |
| 1074 | |
|
6751
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1075 // 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
|
1076 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
|
1077 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
|
1078 if (m == NULL || m->is_static()) { |
|
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1079 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodException(), |
|
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1080 "java.lang.ClassLoader.addClass", false); |
|
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1081 } |
|
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1082 Universe::_loader_addClass_cache->init( |
|
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1083 SystemDictionary::ClassLoader_klass(), m, CHECK_false); |
|
2a48c84f1d04
7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow
coleenp
parents:
6736
diff
changeset
|
1084 |
| 11010 | 1085 // Setup method for checking protection domain |
| 1086 InstanceKlass::cast(SystemDictionary::ProtectionDomain_klass())->link_class(CHECK_false); | |
| 1087 m = InstanceKlass::cast(SystemDictionary::ProtectionDomain_klass())-> | |
| 1088 find_method(vmSymbols::impliesCreateAccessControlContext_name(), | |
| 1089 vmSymbols::void_boolean_signature()); | |
| 1090 // Allow NULL which should only happen with bootstrapping. | |
| 1091 if (m != NULL) { | |
| 1092 if (m->is_static()) { | |
| 1093 // NoSuchMethodException doesn't actually work because it tries to run the | |
| 1094 // <init> function before java_lang_Class is linked. Print error and exit. | |
| 1095 tty->print_cr("ProtectionDomain.impliesCreateAccessControlContext() has the wrong linkage"); | |
| 1096 return false; // initialization failed | |
| 1097 } | |
| 1098 Universe::_pd_implies_cache->init( | |
| 1099 SystemDictionary::ProtectionDomain_klass(), m, CHECK_false);; | |
| 1100 } | |
| 1101 | |
| 0 | 1102 // The folowing is initializing converter functions for serialization in |
| 1103 // JVM.cpp. If we clean up the StrictMath code above we may want to find | |
| 1104 // a better solution for this as well. | |
| 1105 initialize_converter_functions(); | |
| 1106 | |
| 1107 // This needs to be done before the first scavenge/gc, since | |
| 1108 // it's an input to soft ref clearing policy. | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
1109 { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
1110 MutexLocker x(Heap_lock); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
1111 Universe::update_heap_info_at_gc(); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
113
diff
changeset
|
1112 } |
| 0 | 1113 |
| 1114 // ("weak") refs processing infrastructure initialization | |
| 1115 Universe::heap()->post_initialize(); | |
| 1116 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1117 // Initialize performance counters for metaspaces |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1118 MetaspaceCounters::initialize_performance_counters(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1119 |
| 0 | 1120 GC_locker::unlock(); // allow gc after bootstrapping |
| 1121 | |
| 1122 MemoryService::set_universe_heap(Universe::_collectedHeap); | |
| 1123 return true; | |
| 1124 } | |
| 1125 | |
| 1126 | |
| 1127 void Universe::compute_base_vtable_size() { | |
| 1128 _base_vtable_size = ClassLoader::compute_Object_vtable(); | |
| 1129 } | |
| 1130 | |
| 1131 | |
| 1132 // %%% The Universe::flush_foo methods belong in CodeCache. | |
| 1133 | |
| 1134 // Flushes compiled methods dependent on dependee. | |
| 1135 void Universe::flush_dependents_on(instanceKlassHandle dependee) { | |
| 1136 assert_lock_strong(Compile_lock); | |
| 1137 | |
| 1138 if (CodeCache::number_of_nmethods_with_dependencies() == 0) return; | |
| 1139 | |
| 1140 // CodeCache can only be updated by a thread_in_VM and they will all be | |
| 1141 // stopped dring the safepoint so CodeCache will be safe to update without | |
| 1142 // holding the CodeCache_lock. | |
| 1143 | |
|
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1144 KlassDepChange changes(dependee); |
| 0 | 1145 |
| 1146 // Compute the dependent nmethods | |
| 1147 if (CodeCache::mark_for_deoptimization(changes) > 0) { | |
| 1148 // At least one nmethod has been marked for deoptimization | |
| 1149 VM_Deoptimize op; | |
| 1150 VMThread::execute(&op); | |
| 1151 } | |
| 1152 } | |
| 1153 | |
|
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1154 // 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
|
1155 // 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
|
1156 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
|
1157 assert_lock_strong(Compile_lock); |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1158 |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1159 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
|
1160 |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1161 // 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
|
1162 // 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
|
1163 // holding the CodeCache_lock. |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1164 |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1165 CallSiteDepChange changes(call_site(), method_handle()); |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1166 |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1167 // 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
|
1168 // 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
|
1169 // 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
|
1170 // 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
|
1171 // the ContextStream. |
|
3852
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1172 int marked = 0; |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1173 { |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1174 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
|
1175 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
|
1176 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
|
1177 } |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1178 if (marked > 0) { |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1179 // 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
|
1180 VM_Deoptimize op; |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1181 VMThread::execute(&op); |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1182 } |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1183 } |
|
fdb992d83a87
7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents:
3772
diff
changeset
|
1184 |
| 0 | 1185 #ifdef HOTSWAP |
| 1186 // Flushes compiled methods dependent on dependee in the evolutionary sense | |
| 1187 void Universe::flush_evol_dependents_on(instanceKlassHandle ev_k_h) { | |
| 1188 // --- Compile_lock is not held. However we are at a safepoint. | |
| 1189 assert_locked_or_safepoint(Compile_lock); | |
| 1190 if (CodeCache::number_of_nmethods_with_dependencies() == 0) return; | |
| 1191 | |
| 1192 // CodeCache can only be updated by a thread_in_VM and they will all be | |
| 1193 // stopped dring the safepoint so CodeCache will be safe to update without | |
| 1194 // holding the CodeCache_lock. | |
| 1195 | |
| 1196 // Compute the dependent nmethods | |
| 1197 if (CodeCache::mark_for_evol_deoptimization(ev_k_h) > 0) { | |
| 1198 // At least one nmethod has been marked for deoptimization | |
| 1199 | |
| 1200 // All this already happens inside a VM_Operation, so we'll do all the work here. | |
| 1201 // Stuff copied from VM_Deoptimize and modified slightly. | |
| 1202 | |
| 1203 // We do not want any GCs to happen while we are in the middle of this VM operation | |
| 1204 ResourceMark rm; | |
| 1205 DeoptimizationMarker dm; | |
| 1206 | |
| 1207 // Deoptimize all activations depending on marked nmethods | |
| 1208 Deoptimization::deoptimize_dependents(); | |
| 1209 | |
| 1210 // Make the dependent methods not entrant (in VM_Deoptimize they are made zombies) | |
| 1211 CodeCache::make_marked_nmethods_not_entrant(); | |
| 1212 } | |
| 1213 } | |
| 1214 #endif // HOTSWAP | |
| 1215 | |
| 1216 | |
| 1217 // Flushes compiled methods dependent on dependee | |
| 1218 void Universe::flush_dependents_on_method(methodHandle m_h) { | |
| 1219 // --- Compile_lock is not held. However we are at a safepoint. | |
| 1220 assert_locked_or_safepoint(Compile_lock); | |
| 1221 | |
| 1222 // CodeCache can only be updated by a thread_in_VM and they will all be | |
| 1223 // stopped dring the safepoint so CodeCache will be safe to update without | |
| 1224 // holding the CodeCache_lock. | |
| 1225 | |
| 1226 // Compute the dependent nmethods | |
| 1227 if (CodeCache::mark_for_deoptimization(m_h()) > 0) { | |
| 1228 // At least one nmethod has been marked for deoptimization | |
| 1229 | |
| 1230 // All this already happens inside a VM_Operation, so we'll do all the work here. | |
| 1231 // Stuff copied from VM_Deoptimize and modified slightly. | |
| 1232 | |
| 1233 // We do not want any GCs to happen while we are in the middle of this VM operation | |
| 1234 ResourceMark rm; | |
| 1235 DeoptimizationMarker dm; | |
| 1236 | |
| 1237 // Deoptimize all activations depending on marked nmethods | |
| 1238 Deoptimization::deoptimize_dependents(); | |
| 1239 | |
| 1240 // Make the dependent methods not entrant (in VM_Deoptimize they are made zombies) | |
| 1241 CodeCache::make_marked_nmethods_not_entrant(); | |
| 1242 } | |
| 1243 } | |
| 1244 | |
|
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1245 void Universe::print() { |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1246 print_on(gclog_or_tty); |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1247 } |
| 0 | 1248 |
|
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1249 void Universe::print_on(outputStream* st, bool extended) { |
| 0 | 1250 st->print_cr("Heap"); |
|
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1251 if (!extended) { |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1252 heap()->print_on(st); |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1253 } else { |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1254 heap()->print_extended_on(st); |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1255 } |
| 0 | 1256 } |
| 1257 | |
| 1258 void Universe::print_heap_at_SIGBREAK() { | |
| 1259 if (PrintHeapAtSIGBREAK) { | |
| 1260 MutexLocker hl(Heap_lock); | |
| 1261 print_on(tty); | |
| 1262 tty->cr(); | |
| 1263 tty->flush(); | |
| 1264 } | |
| 1265 } | |
| 1266 | |
| 4944 | 1267 void Universe::print_heap_before_gc(outputStream* st, bool ignore_extended) { |
| 0 | 1268 st->print_cr("{Heap before GC invocations=%u (full %u):", |
| 1269 heap()->total_collections(), | |
| 1270 heap()->total_full_collections()); | |
| 4944 | 1271 if (!PrintHeapAtGCExtended || ignore_extended) { |
|
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1272 heap()->print_on(st); |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1273 } else { |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1274 heap()->print_extended_on(st); |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1275 } |
| 0 | 1276 } |
| 1277 | |
| 4944 | 1278 void Universe::print_heap_after_gc(outputStream* st, bool ignore_extended) { |
| 0 | 1279 st->print_cr("Heap after GC invocations=%u (full %u):", |
| 1280 heap()->total_collections(), | |
| 1281 heap()->total_full_collections()); | |
| 4944 | 1282 if (!PrintHeapAtGCExtended || ignore_extended) { |
|
4073
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1283 heap()->print_on(st); |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1284 } else { |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1285 heap()->print_extended_on(st); |
|
53074c2c4600
7099849: G1: include heap region information in hs_err files
tonyp
parents:
4013
diff
changeset
|
1286 } |
| 0 | 1287 st->print_cr("}"); |
| 1288 } | |
| 1289 | |
|
10186
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9062
diff
changeset
|
1290 void Universe::verify(VerifyOption option, const char* prefix, bool silent) { |
| 0 | 1291 // The use of _verify_in_progress is a temporary work around for |
| 1292 // 6320749. Don't bother with a creating a class to set and clear | |
| 1293 // it since it is only used in this method and the control flow is | |
| 1294 // straight forward. | |
| 1295 _verify_in_progress = true; | |
| 1296 | |
| 1297 COMPILER2_PRESENT( | |
| 1298 assert(!DerivedPointerTable::is_active(), | |
| 1299 "DPT should not be active during verification " | |
| 1300 "(of thread stacks below)"); | |
| 1301 ) | |
| 1302 | |
| 1303 ResourceMark rm; | |
| 1304 HandleMark hm; // Handles created during verification can be zapped | |
| 1305 _verify_count++; | |
| 1306 | |
|
10186
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9062
diff
changeset
|
1307 if (!silent) gclog_or_tty->print(prefix); |
| 0 | 1308 if (!silent) gclog_or_tty->print("[Verifying "); |
| 1309 if (!silent) gclog_or_tty->print("threads "); | |
| 1310 Threads::verify(); | |
|
10186
b06ac540229e
8013132: Add a flag to turn off the output of the verbose verification code
stefank
parents:
9062
diff
changeset
|
1311 if (!silent) gclog_or_tty->print("heap "); |
| 6008 | 1312 heap()->verify(silent, option); |
| 0 | 1313 if (!silent) gclog_or_tty->print("syms "); |
| 1314 SymbolTable::verify(); | |
| 1315 if (!silent) gclog_or_tty->print("strs "); | |
| 1316 StringTable::verify(); | |
| 1317 { | |
| 1318 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag); | |
| 1319 if (!silent) gclog_or_tty->print("zone "); | |
| 1320 CodeCache::verify(); | |
| 1321 } | |
| 1322 if (!silent) gclog_or_tty->print("dict "); | |
| 1323 SystemDictionary::verify(); | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1324 #ifndef PRODUCT |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1325 if (!silent) gclog_or_tty->print("cldg "); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1326 ClassLoaderDataGraph::verify(); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1327 #endif |
|
6969
6bc207d87e5d
7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java
mgerdin
parents:
6870
diff
changeset
|
1328 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
|
1329 MetaspaceAux::verify_free_chunks(); |
| 0 | 1330 if (!silent) gclog_or_tty->print("hand "); |
| 1331 JNIHandles::verify(); | |
| 1332 if (!silent) gclog_or_tty->print("C-heap "); | |
| 1333 os::check_heap(); | |
|
2375
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2177
diff
changeset
|
1334 if (!silent) gclog_or_tty->print("code cache "); |
|
d673ef06fe96
7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents:
2177
diff
changeset
|
1335 CodeCache::verify_oops(); |
| 0 | 1336 if (!silent) gclog_or_tty->print_cr("]"); |
| 1337 | |
| 1338 _verify_in_progress = false; | |
| 1339 } | |
| 1340 | |
| 1341 // Oop verification (see MacroAssembler::verify_oop) | |
| 1342 | |
| 1343 static uintptr_t _verify_oop_data[2] = {0, (uintptr_t)-1}; | |
| 1344 static uintptr_t _verify_klass_data[2] = {0, (uintptr_t)-1}; | |
| 1345 | |
| 1346 | |
|
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8827
diff
changeset
|
1347 #ifndef PRODUCT |
|
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8827
diff
changeset
|
1348 |
| 0 | 1349 static void calculate_verify_data(uintptr_t verify_data[2], |
| 1350 HeapWord* low_boundary, | |
| 1351 HeapWord* high_boundary) { | |
| 1352 assert(low_boundary < high_boundary, "bad interval"); | |
| 1353 | |
| 1354 // decide which low-order bits we require to be clear: | |
| 1355 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
|
1356 size_t min_object_size = CollectedHeap::min_fill_size(); |
| 0 | 1357 |
| 1358 // make an inclusive limit: | |
| 1359 uintptr_t max = (uintptr_t)high_boundary - min_object_size*wordSize; | |
| 1360 uintptr_t min = (uintptr_t)low_boundary; | |
| 1361 assert(min < max, "bad interval"); | |
| 1362 uintptr_t diff = max ^ min; | |
| 1363 | |
| 1364 // throw away enough low-order bits to make the diff vanish | |
| 1365 uintptr_t mask = (uintptr_t)(-1); | |
| 1366 while ((mask & diff) != 0) | |
| 1367 mask <<= 1; | |
| 1368 uintptr_t bits = (min & mask); | |
| 1369 assert(bits == (max & mask), "correct mask"); | |
| 1370 // check an intermediate value between min and max, just to make sure: | |
| 1371 assert(bits == ((min + (max-min)/2) & mask), "correct mask"); | |
| 1372 | |
| 1373 // require address alignment, too: | |
| 1374 mask |= (alignSize - 1); | |
| 1375 | |
| 1376 if (!(verify_data[0] == 0 && verify_data[1] == (uintptr_t)-1)) { | |
| 1377 assert(verify_data[0] == mask && verify_data[1] == bits, "mask stability"); | |
| 1378 } | |
| 1379 verify_data[0] = mask; | |
| 1380 verify_data[1] = bits; | |
| 1381 } | |
| 1382 | |
| 1383 // Oop verification (see MacroAssembler::verify_oop) | |
| 1384 | |
| 1385 uintptr_t Universe::verify_oop_mask() { | |
| 1386 MemRegion m = heap()->reserved_region(); | |
| 1387 calculate_verify_data(_verify_oop_data, | |
| 1388 m.start(), | |
| 1389 m.end()); | |
| 1390 return _verify_oop_data[0]; | |
| 1391 } | |
| 1392 | |
| 1393 | |
| 1394 | |
| 1395 uintptr_t Universe::verify_oop_bits() { | |
| 1396 verify_oop_mask(); | |
| 1397 return _verify_oop_data[1]; | |
| 1398 } | |
| 1399 | |
| 1400 uintptr_t Universe::verify_mark_mask() { | |
| 1401 return markOopDesc::lock_mask_in_place; | |
| 1402 } | |
| 1403 | |
| 1404 uintptr_t Universe::verify_mark_bits() { | |
| 1405 intptr_t mask = verify_mark_mask(); | |
| 1406 intptr_t bits = (intptr_t)markOopDesc::prototype(); | |
| 1407 assert((bits & ~mask) == 0, "no stray header bits"); | |
| 1408 return bits; | |
| 1409 } | |
| 1410 #endif // PRODUCT | |
| 1411 | |
| 1412 | |
| 1413 void Universe::compute_verify_oop_data() { | |
| 1414 verify_oop_mask(); | |
| 1415 verify_oop_bits(); | |
| 1416 verify_mark_mask(); | |
| 1417 verify_mark_bits(); | |
| 1418 } | |
| 1419 | |
| 1420 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1421 void CommonMethodOopCache::init(Klass* k, Method* m, TRAPS) { |
| 0 | 1422 if (!UseSharedSpaces) { |
| 1423 _klass = k; | |
| 1424 } | |
| 1425 #ifndef PRODUCT | |
| 1426 else { | |
| 1427 // sharing initilization should have already set up _klass | |
| 1428 assert(_klass != NULL, "just checking"); | |
| 1429 } | |
| 1430 #endif | |
| 1431 | |
| 1432 _method_idnum = m->method_idnum(); | |
| 1433 assert(_method_idnum >= 0, "sanity check"); | |
| 1434 } | |
| 1435 | |
| 1436 | |
| 1437 ActiveMethodOopsCache::~ActiveMethodOopsCache() { | |
| 1438 if (_prev_methods != NULL) { | |
| 1439 delete _prev_methods; | |
| 1440 _prev_methods = NULL; | |
| 1441 } | |
| 1442 } | |
| 1443 | |
| 1444 | |
|
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1445 void ActiveMethodOopsCache::add_previous_version(Method* method) { |
| 0 | 1446 assert(Thread::current()->is_VM_thread(), |
| 1447 "only VMThread can add previous versions"); | |
| 1448 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1449 // 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
|
1450 if (method->on_stack()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1451 |
|
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1452 if (_prev_methods == NULL) { |
|
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1453 // 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
|
1454 // 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
|
1455 // won't be redefined much. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1456 _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
|
1457 } |
| 0 | 1458 |
|
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1459 // RC_TRACE macro has an embedded ResourceMark |
|
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1460 RC_TRACE(0x00000100, |
|
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1461 ("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
|
1462 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
|
1463 _prev_methods->length())); |
| 0 | 1464 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1465 _prev_methods->append(method); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1466 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1467 |
| 0 | 1468 |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1469 // 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
|
1470 // time to clear out unused method references. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1471 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1472 if (_prev_methods == NULL) return; |
| 0 | 1473 |
| 1474 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
|
1475 Method* method = _prev_methods->at(i); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1476 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
|
1477 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1478 if (!method->on_stack()) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1479 // This method isn't running anymore so remove it |
| 0 | 1480 _prev_methods->remove_at(i); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1481 MetadataFactory::free_metadata(method->method_holder()->class_loader_data(), method); |
| 0 | 1482 } else { |
| 1483 // RC_TRACE macro has an embedded ResourceMark | |
|
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1484 RC_TRACE(0x00000400, |
|
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1485 ("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
|
1486 method->name()->as_C_string(), method->signature()->as_C_string(), i)); |
| 0 | 1487 } |
| 1488 } | |
| 1489 } // end add_previous_version() | |
| 1490 | |
| 1491 | |
|
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1492 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
|
1493 InstanceKlass* ik = InstanceKlass::cast(klass()); |
|
10265
92ef81e2f571
8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents:
10186
diff
changeset
|
1494 const Method* check_method = ik->method_with_idnum(method_idnum()); |
| 0 | 1495 assert(check_method != NULL, "sanity check"); |
| 1496 if (check_method == method) { | |
| 1497 // done with the easy case | |
| 1498 return true; | |
| 1499 } | |
| 1500 | |
| 1501 if (_prev_methods != NULL) { | |
| 1502 // The cached method has been redefined at least once so search | |
| 1503 // the previous versions for a match. | |
| 1504 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
|
1505 check_method = _prev_methods->at(i); |
| 0 | 1506 if (check_method == method) { |
| 1507 // a previous version matches | |
| 1508 return true; | |
| 1509 } | |
| 1510 } | |
| 1511 } | |
| 1512 | |
| 1513 // either no previous versions or no previous version matched | |
| 1514 return false; | |
| 1515 } | |
| 1516 | |
| 1517 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1518 Method* LatestMethodOopCache::get_Method() { |
| 11010 | 1519 if (klass() == NULL) return NULL; |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1520 InstanceKlass* ik = InstanceKlass::cast(klass()); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6197
diff
changeset
|
1521 Method* m = ik->method_with_idnum(method_idnum()); |
| 0 | 1522 assert(m != NULL, "sanity check"); |
| 1523 return m; | |
| 1524 } | |
| 1525 | |
| 1526 | |
| 1527 #ifdef ASSERT | |
| 1528 // Release dummy object(s) at bottom of heap | |
| 1529 bool Universe::release_fullgc_alot_dummy() { | |
| 1530 MutexLocker ml(FullGCALot_lock); | |
| 1531 if (_fullgc_alot_dummy_array != NULL) { | |
| 1532 if (_fullgc_alot_dummy_next >= _fullgc_alot_dummy_array->length()) { | |
| 1533 // No more dummies to release, release entire array instead | |
| 1534 _fullgc_alot_dummy_array = NULL; | |
| 1535 return false; | |
| 1536 } | |
| 1537 if (!UseConcMarkSweepGC) { | |
| 1538 // Release dummy at bottom of old generation | |
| 1539 _fullgc_alot_dummy_array->obj_at_put(_fullgc_alot_dummy_next++, NULL); | |
| 1540 } | |
| 1541 // Release dummy at bottom of permanent generation | |
| 1542 _fullgc_alot_dummy_array->obj_at_put(_fullgc_alot_dummy_next++, NULL); | |
| 1543 } | |
| 1544 return true; | |
| 1545 } | |
| 1546 | |
| 1547 #endif // ASSERT |