truffle: src/share/vm/memory/universe.cpp annotate

annotate src/share/vm/memory/universe.cpp @ 11064:de2d15ce3d4a

8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty Summary: Allocate medium chunks for class metaspace when class loader has lots of classes Reviewed-by: mgerdin, jmasa

author	coleenp
date	Tue, 02 Jul 2013 08:42:37 -0400
parents	ef57c43512d6
children	cedf20e2a655

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	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 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	28 #include "classfile/javaClasses.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	29 #include "classfile/symbolTable.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	30 #include "classfile/systemDictionary.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	31 #include "classfile/vmSymbols.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	32 #include "code/codeCache.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	33 #include "code/dependencies.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	34 #include "gc_interface/collectedHeap.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	35 #include "interpreter/interpreter.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	36 #include "memory/cardTableModRefBS.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	37 #include "memory/gcLocker.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	38 #include "memory/genCollectedHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	39 #include "memory/genRemSet.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	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 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	43 #include "memory/oopFactory.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	44 #include "memory/space.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	45 #include "memory/universe.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	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 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	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 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	51 #include "oops/instanceRefKlass.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	52 #include "oops/oop.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	53 #include "oops/typeArrayKlass.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	54 #include "prims/jvmtiRedefineClassesTrace.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	55 #include "runtime/aprofiler.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	56 #include "runtime/arguments.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	57 #include "runtime/deoptimization.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	58 #include "runtime/fprofiler.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	59 #include "runtime/handles.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	60 #include "runtime/init.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	61 #include "runtime/java.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	62 #include "runtime/javaCalls.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	63 #include "runtime/sharedRuntime.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	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 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	66 #include "runtime/timer.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	67 #include "runtime/vm_operations.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	68 #include "services/memoryService.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	69 #include "utilities/copy.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	70 #include "utilities/events.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	71 #include "utilities/hashtable.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	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 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	75 #include "gc_implementation/concurrentMarkSweep/cmsAdaptiveSizePolicy.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	76 #include "gc_implementation/concurrentMarkSweep/cmsCollectorPolicy.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	77 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	78 #include "gc_implementation/g1/g1CollectorPolicy.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1966 diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	81
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	103 oop Universe::_main_thread_group = NULL;
a61af66fc99e Initial load duke parents: diff changeset	104 oop Universe::_system_thread_group = NULL;
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	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;
0 a61af66fc99e Initial load duke parents: diff changeset	111 ActiveMethodOopsCache* Universe::_reflect_invoke_cache = NULL;
a61af66fc99e Initial load duke parents: diff changeset	112 oop Universe::_out_of_memory_error_java_heap = NULL;
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	113 oop Universe::_out_of_memory_error_metaspace = NULL;
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	114 oop Universe::_out_of_memory_error_class_metaspace = NULL;
0 a61af66fc99e Initial load duke parents: diff changeset	115 oop Universe::_out_of_memory_error_array_size = NULL;
a61af66fc99e Initial load duke parents: diff changeset	116 oop Universe::_out_of_memory_error_gc_overhead_limit = NULL;
a61af66fc99e Initial load duke parents: diff changeset	117 objArrayOop Universe::_preallocated_out_of_memory_error_array = NULL;
a61af66fc99e Initial load duke parents: diff changeset	118 volatile jint Universe::_preallocated_out_of_memory_error_avail_count = 0;
a61af66fc99e Initial load duke parents: diff changeset	119 bool Universe::_verify_in_progress = false;
a61af66fc99e Initial load duke parents: diff changeset	120 oop Universe::_null_ptr_exception_instance = NULL;
a61af66fc99e Initial load duke parents: diff changeset	121 oop Universe::_arithmetic_exception_instance = NULL;
a61af66fc99e Initial load duke parents: diff changeset	122 oop Universe::_virtual_machine_error_instance = NULL;
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	128
a61af66fc99e Initial load duke parents: diff changeset	129 // These variables are guarded by FullGCALot_lock.
a61af66fc99e Initial load duke parents: diff changeset	130 debug_only(objArrayOop Universe::_fullgc_alot_dummy_array = NULL;)
a61af66fc99e Initial load duke parents: diff changeset	131 debug_only(int Universe::_fullgc_alot_dummy_next = 0;)
a61af66fc99e Initial load duke parents: diff changeset	132
a61af66fc99e Initial load duke parents: diff changeset	133 // Heap
a61af66fc99e Initial load duke parents: diff changeset	134 int Universe::_verify_count = 0;
a61af66fc99e Initial load duke parents: diff changeset	135
a61af66fc99e Initial load duke parents: diff changeset	136 int Universe::_base_vtable_size = 0;
a61af66fc99e Initial load duke parents: diff changeset	137 bool Universe::_bootstrapping = false;
a61af66fc99e Initial load duke parents: diff changeset	138 bool Universe::_fully_initialized = false;
a61af66fc99e Initial load duke parents: diff changeset	139
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	142
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	152 f(boolArrayKlassObj());
a61af66fc99e Initial load duke parents: diff changeset	153 f(byteArrayKlassObj());
a61af66fc99e Initial load duke parents: diff changeset	154 f(charArrayKlassObj());
a61af66fc99e Initial load duke parents: diff changeset	155 f(intArrayKlassObj());
a61af66fc99e Initial load duke parents: diff changeset	156 f(shortArrayKlassObj());
a61af66fc99e Initial load duke parents: diff changeset	157 f(longArrayKlassObj());
a61af66fc99e Initial load duke parents: diff changeset	158 f(singleArrayKlassObj());
a61af66fc99e Initial load duke parents: diff changeset	159 f(doubleArrayKlassObj());
a61af66fc99e Initial load duke parents: diff changeset	160 }
a61af66fc99e Initial load duke parents: diff changeset	161
a61af66fc99e Initial load duke parents: diff changeset	162 void Universe::oops_do(OopClosure* f, bool do_all) {
a61af66fc99e Initial load duke parents: diff changeset	163
a61af66fc99e Initial load duke parents: diff changeset	164 f->do_oop((oop*) &_int_mirror);
a61af66fc99e Initial load duke parents: diff changeset	165 f->do_oop((oop*) &_float_mirror);
a61af66fc99e Initial load duke parents: diff changeset	166 f->do_oop((oop*) &_double_mirror);
a61af66fc99e Initial load duke parents: diff changeset	167 f->do_oop((oop*) &_byte_mirror);
a61af66fc99e Initial load duke parents: diff changeset	168 f->do_oop((oop*) &_bool_mirror);
a61af66fc99e Initial load duke parents: diff changeset	169 f->do_oop((oop*) &_char_mirror);
a61af66fc99e Initial load duke parents: diff changeset	170 f->do_oop((oop*) &_long_mirror);
a61af66fc99e Initial load duke parents: diff changeset	171 f->do_oop((oop*) &_short_mirror);
a61af66fc99e Initial load duke parents: diff changeset	172 f->do_oop((oop*) &_void_mirror);
a61af66fc99e Initial load duke parents: diff changeset	173
a61af66fc99e Initial load duke parents: diff changeset	174 for (int i = T_BOOLEAN; i < T_VOID+1; i++) {
a61af66fc99e Initial load duke parents: diff changeset	175 f->do_oop((oop*) &_mirrors[i]);
a61af66fc99e Initial load duke parents: diff changeset	176 }
a61af66fc99e Initial load duke parents: diff changeset	177 assert(_mirrors[0] == NULL && _mirrors[T_BOOLEAN - 1] == NULL, "checking");
a61af66fc99e Initial load duke parents: diff changeset	178
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	182 f->do_oop((oop*)&_out_of_memory_error_java_heap);
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	183 f->do_oop((oop*)&_out_of_memory_error_metaspace);
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	184 f->do_oop((oop*)&_out_of_memory_error_class_metaspace);
0 a61af66fc99e Initial load duke parents: diff changeset	185 f->do_oop((oop*)&_out_of_memory_error_array_size);
a61af66fc99e Initial load duke parents: diff changeset	186 f->do_oop((oop*)&_out_of_memory_error_gc_overhead_limit);
a61af66fc99e Initial load duke parents: diff changeset	187 f->do_oop((oop*)&_preallocated_out_of_memory_error_array);
a61af66fc99e Initial load duke parents: diff changeset	188 f->do_oop((oop*)&_null_ptr_exception_instance);
a61af66fc99e Initial load duke parents: diff changeset	189 f->do_oop((oop*)&_arithmetic_exception_instance);
a61af66fc99e Initial load duke parents: diff changeset	190 f->do_oop((oop*)&_virtual_machine_error_instance);
a61af66fc99e Initial load duke parents: diff changeset	191 f->do_oop((oop*)&_main_thread_group);
a61af66fc99e Initial load duke parents: diff changeset	192 f->do_oop((oop*)&_system_thread_group);
a61af66fc99e Initial load duke parents: diff changeset	193 f->do_oop((oop*)&_vm_exception);
a61af66fc99e Initial load duke parents: diff changeset	194 debug_only(f->do_oop((oop*)&_fullgc_alot_dummy_array);)
a61af66fc99e Initial load duke parents: diff changeset	195 }
a61af66fc99e Initial load duke parents: diff changeset	196
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	197 // 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	198 void Universe::serialize(SerializeClosure* f, bool do_all) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	199
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	200 f->do_ptr((void**)&_boolArrayKlassObj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	201 f->do_ptr((void**)&_byteArrayKlassObj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	202 f->do_ptr((void**)&_charArrayKlassObj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	203 f->do_ptr((void**)&_intArrayKlassObj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	204 f->do_ptr((void**)&_shortArrayKlassObj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	205 f->do_ptr((void**)&_longArrayKlassObj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	206 f->do_ptr((void**)&_singleArrayKlassObj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	207 f->do_ptr((void**)&_doubleArrayKlassObj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	208 f->do_ptr((void**)&_objectArrayKlassObj);
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 {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	211 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	212 if (_typeArrayKlassObjs[i] != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	213 assert(i >= T_BOOLEAN, "checking");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	214 f->do_ptr((void**)&_typeArrayKlassObjs[i]);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	215 } else if (do_all) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	216 f->do_ptr((void**)&_typeArrayKlassObjs[i]);
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	221 f->do_ptr((void**)&_the_array_interfaces_array);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	222 f->do_ptr((void**)&_the_empty_int_array);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	223 f->do_ptr((void**)&_the_empty_short_array);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	224 f->do_ptr((void**)&_the_empty_method_array);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	225 f->do_ptr((void**)&_the_empty_klass_array);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	226 _finalizer_register_cache->serialize(f);
6751 2a48c84f1d04 7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow coleenp parents: 6736 diff changeset	227 _loader_addClass_cache->serialize(f);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	228 _reflect_invoke_cache->serialize(f);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	229 }
0 a61af66fc99e Initial load duke parents: diff changeset	230
a61af66fc99e Initial load duke parents: diff changeset	231 void Universe::check_alignment(uintx size, uintx alignment, const char* name) {
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	235 }
a61af66fc99e Initial load duke parents: diff changeset	236 }
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	248
a61af66fc99e Initial load duke parents: diff changeset	249 void Universe::genesis(TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	250 ResourceMark rm;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	251
0 a61af66fc99e Initial load duke parents: diff changeset	252 { FlagSetting fs(_bootstrapping, true);
a61af66fc99e Initial load duke parents: diff changeset	253
a61af66fc99e Initial load duke parents: diff changeset	254 { MutexLocker mc(Compile_lock);
a61af66fc99e Initial load duke parents: diff changeset	255
a61af66fc99e Initial load duke parents: diff changeset	256 // determine base vtable size; without that we cannot create the array klasses
a61af66fc99e Initial load duke parents: diff changeset	257 compute_base_vtable_size();
a61af66fc99e Initial load duke parents: diff changeset	258
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	268
a61af66fc99e Initial load duke parents: diff changeset	269 _typeArrayKlassObjs[T_BOOLEAN] = _boolArrayKlassObj;
a61af66fc99e Initial load duke parents: diff changeset	270 _typeArrayKlassObjs[T_CHAR] = _charArrayKlassObj;
a61af66fc99e Initial load duke parents: diff changeset	271 _typeArrayKlassObjs[T_FLOAT] = _singleArrayKlassObj;
a61af66fc99e Initial load duke parents: diff changeset	272 _typeArrayKlassObjs[T_DOUBLE] = _doubleArrayKlassObj;
a61af66fc99e Initial load duke parents: diff changeset	273 _typeArrayKlassObjs[T_BYTE] = _byteArrayKlassObj;
a61af66fc99e Initial load duke parents: diff changeset	274 _typeArrayKlassObjs[T_SHORT] = _shortArrayKlassObj;
a61af66fc99e Initial load duke parents: diff changeset	275 _typeArrayKlassObjs[T_INT] = _intArrayKlassObj;
a61af66fc99e Initial load duke parents: diff changeset	276 _typeArrayKlassObjs[T_LONG] = _longArrayKlassObj;
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	285 }
a61af66fc99e Initial load duke parents: diff changeset	286 }
a61af66fc99e Initial load duke parents: diff changeset	287
a61af66fc99e Initial load duke parents: diff changeset	288 vmSymbols::initialize(CHECK);
a61af66fc99e Initial load duke parents: diff changeset	289
a61af66fc99e Initial load duke parents: diff changeset	290 SystemDictionary::initialize(CHECK);
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	297 if (UseSharedSpaces) {
a61af66fc99e Initial load duke parents: diff changeset	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 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1080 diff changeset	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 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1080 diff changeset	302 SystemDictionary::Serializable_klass(), "u3");
0 a61af66fc99e Initial load duke parents: diff changeset	303 } else {
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	307 }
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	317 } // end of core bootstrapping
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	323 // Initialize _objectArrayKlass after core bootstraping to make
a61af66fc99e Initial load duke parents: diff changeset	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 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1080 diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	334 // Add the class to the class hierarchy manually to make sure that
a61af66fc99e Initial load duke parents: diff changeset	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 070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6870 diff changeset	339 _objectArrayKlassObj->append_to_sibling_list();
0 a61af66fc99e Initial load duke parents: diff changeset	340
a61af66fc99e Initial load duke parents: diff changeset	341 // Compute is_jdk version flags.
a61af66fc99e Initial load duke parents: diff changeset	342 // Only 1.3 or later has the java.lang.Shutdown class.
a61af66fc99e Initial load duke parents: diff changeset	343 // Only 1.4 or later has the java.lang.CharSequence interface.
a61af66fc99e Initial load duke parents: diff changeset	344 // Only 1.5 or later has the java.lang.management.MemoryUsage class.
242 d95b224e9f17 6721093: -XX:AppendRatio=N not supported kamg parents: 196 diff changeset	345 if (JDK_Version::is_partially_initialized()) {
d95b224e9f17 6721093: -XX:AppendRatio=N not supported kamg parents: 196 diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	349 CLEAR_PENDING_EXCEPTION; // ignore exceptions
a61af66fc99e Initial load duke parents: diff changeset	350 if (k == NULL) {
242 d95b224e9f17 6721093: -XX:AppendRatio=N not supported kamg parents: 196 diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	353 CLEAR_PENDING_EXCEPTION; // ignore exceptions
a61af66fc99e Initial load duke parents: diff changeset	354 if (k == NULL) {
242 d95b224e9f17 6721093: -XX:AppendRatio=N not supported kamg parents: 196 diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	357 CLEAR_PENDING_EXCEPTION; // ignore exceptions
a61af66fc99e Initial load duke parents: diff changeset	358 if (k == NULL) {
242 d95b224e9f17 6721093: -XX:AppendRatio=N not supported kamg parents: 196 diff changeset	359 jdk_version = 2;
0 a61af66fc99e Initial load duke parents: diff changeset	360 } else {
242 d95b224e9f17 6721093: -XX:AppendRatio=N not supported kamg parents: 196 diff changeset	361 jdk_version = 3;
0 a61af66fc99e Initial load duke parents: diff changeset	362 }
a61af66fc99e Initial load duke parents: diff changeset	363 } else {
242 d95b224e9f17 6721093: -XX:AppendRatio=N not supported kamg parents: 196 diff changeset	364 jdk_version = 4;
0 a61af66fc99e Initial load duke parents: diff changeset	365 }
a61af66fc99e Initial load duke parents: diff changeset	366 } else {
242 d95b224e9f17 6721093: -XX:AppendRatio=N not supported kamg parents: 196 diff changeset	367 jdk_version = 5;
0 a61af66fc99e Initial load duke parents: diff changeset	368 }
242 d95b224e9f17 6721093: -XX:AppendRatio=N not supported kamg parents: 196 diff changeset	369 JDK_Version::fully_initialize(jdk_version);
0 a61af66fc99e Initial load duke parents: diff changeset	370 }
a61af66fc99e Initial load duke parents: diff changeset	371
a61af66fc99e Initial load duke parents: diff changeset	372 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	373 if (FullGCALot) {
a61af66fc99e Initial load duke parents: diff changeset	374 // Allocate an array of dummy objects.
a61af66fc99e Initial load duke parents: diff changeset	375 // We'd like these to be at the bottom of the old generation,
a61af66fc99e Initial load duke parents: diff changeset	376 // so that when we free one and then collect,
a61af66fc99e Initial load duke parents: diff changeset	377 // (almost) the whole heap moves
a61af66fc99e Initial load duke parents: diff changeset	378 // and we find out if we actually update all the oops correctly.
a61af66fc99e Initial load duke parents: diff changeset	379 // But we can't allocate directly in the old generation,
a61af66fc99e Initial load duke parents: diff changeset	380 // so we allocate wherever, and hope that the first collection
a61af66fc99e Initial load duke parents: diff changeset	381 // moves these objects to the bottom of the old generation.
a61af66fc99e Initial load duke parents: diff changeset	382 // We can allocate directly in the permanent generation, so we do.
a61af66fc99e Initial load duke parents: diff changeset	383 int size;
a61af66fc99e Initial load duke parents: diff changeset	384 if (UseConcMarkSweepGC) {
a61af66fc99e Initial load duke parents: diff changeset	385 warning("Using +FullGCALot with concurrent mark sweep gc "
a61af66fc99e Initial load duke parents: diff changeset	386 "will not force all objects to relocate");
a61af66fc99e Initial load duke parents: diff changeset	387 size = FullGCALotDummies;
a61af66fc99e Initial load duke parents: diff changeset	388 } else {
a61af66fc99e Initial load duke parents: diff changeset	389 size = FullGCALotDummies * 2;
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	392 objArrayHandle dummy_array(THREAD, naked_array);
a61af66fc99e Initial load duke parents: diff changeset	393 int i = 0;
a61af66fc99e Initial load duke parents: diff changeset	394 while (i < size) {
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	397 dummy_array->obj_at_put(i++, dummy);
a61af66fc99e Initial load duke parents: diff changeset	398 }
a61af66fc99e Initial load duke parents: diff changeset	399 {
a61af66fc99e Initial load duke parents: diff changeset	400 // Only modify the global variable inside the mutex.
a61af66fc99e Initial load duke parents: diff changeset	401 // If we had a race to here, the other dummy_array instances
a61af66fc99e Initial load duke parents: diff changeset	402 // and their elements just get dropped on the floor, which is fine.
a61af66fc99e Initial load duke parents: diff changeset	403 MutexLocker ml(FullGCALot_lock);
a61af66fc99e Initial load duke parents: diff changeset	404 if (_fullgc_alot_dummy_array == NULL) {
a61af66fc99e Initial load duke parents: diff changeset	405 _fullgc_alot_dummy_array = dummy_array();
a61af66fc99e Initial load duke parents: diff changeset	406 }
a61af66fc99e Initial load duke parents: diff changeset	407 }
a61af66fc99e Initial load duke parents: diff changeset	408 assert(i == _fullgc_alot_dummy_array->length(), "just checking");
a61af66fc99e Initial load duke parents: diff changeset	409 }
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	415 }
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	428
a61af66fc99e Initial load duke parents: diff changeset	429 void Universe::init_self_patching_vtbl_list(void** list, int count) {
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	439 }
a61af66fc99e Initial load duke parents: diff changeset	440
a61af66fc99e Initial load duke parents: diff changeset	441 void Universe::initialize_basic_type_mirrors(TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	442 assert(_int_mirror==NULL, "basic type mirrors already initialized");
a61af66fc99e Initial load duke parents: diff changeset	443 _int_mirror =
a61af66fc99e Initial load duke parents: diff changeset	444 java_lang_Class::create_basic_type_mirror("int", T_INT, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	445 _float_mirror =
a61af66fc99e Initial load duke parents: diff changeset	446 java_lang_Class::create_basic_type_mirror("float", T_FLOAT, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	447 _double_mirror =
a61af66fc99e Initial load duke parents: diff changeset	448 java_lang_Class::create_basic_type_mirror("double", T_DOUBLE, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	449 _byte_mirror =
a61af66fc99e Initial load duke parents: diff changeset	450 java_lang_Class::create_basic_type_mirror("byte", T_BYTE, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	451 _bool_mirror =
a61af66fc99e Initial load duke parents: diff changeset	452 java_lang_Class::create_basic_type_mirror("boolean",T_BOOLEAN, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	453 _char_mirror =
a61af66fc99e Initial load duke parents: diff changeset	454 java_lang_Class::create_basic_type_mirror("char", T_CHAR, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	455 _long_mirror =
a61af66fc99e Initial load duke parents: diff changeset	456 java_lang_Class::create_basic_type_mirror("long", T_LONG, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	457 _short_mirror =
a61af66fc99e Initial load duke parents: diff changeset	458 java_lang_Class::create_basic_type_mirror("short", T_SHORT, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	459 _void_mirror =
a61af66fc99e Initial load duke parents: diff changeset	460 java_lang_Class::create_basic_type_mirror("void", T_VOID, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	461
a61af66fc99e Initial load duke parents: diff changeset	462 _mirrors[T_INT] = _int_mirror;
a61af66fc99e Initial load duke parents: diff changeset	463 _mirrors[T_FLOAT] = _float_mirror;
a61af66fc99e Initial load duke parents: diff changeset	464 _mirrors[T_DOUBLE] = _double_mirror;
a61af66fc99e Initial load duke parents: diff changeset	465 _mirrors[T_BYTE] = _byte_mirror;
a61af66fc99e Initial load duke parents: diff changeset	466 _mirrors[T_BOOLEAN] = _bool_mirror;
a61af66fc99e Initial load duke parents: diff changeset	467 _mirrors[T_CHAR] = _char_mirror;
a61af66fc99e Initial load duke parents: diff changeset	468 _mirrors[T_LONG] = _long_mirror;
a61af66fc99e Initial load duke parents: diff changeset	469 _mirrors[T_SHORT] = _short_mirror;
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	473 }
a61af66fc99e Initial load duke parents: diff changeset	474
a61af66fc99e Initial load duke parents: diff changeset	475 void Universe::fixup_mirrors(TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	476 // Bootstrap problem: all classes gets a mirror (java.lang.Class instance) assigned eagerly,
a61af66fc99e Initial load duke parents: diff changeset	477 // but we cannot do that for classes created before java.lang.Class is loaded. Here we simply
a61af66fc99e Initial load duke parents: diff changeset	478 // walk over permanent objects created so far (mostly classes) and fixup their mirrors. Note
a61af66fc99e Initial load duke parents: diff changeset	479 // that the number of objects allocated at this point is very small.
1142 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1080 diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	497
a61af66fc99e Initial load duke parents: diff changeset	498 static bool has_run_finalizers_on_exit = false;
a61af66fc99e Initial load duke parents: diff changeset	499
a61af66fc99e Initial load duke parents: diff changeset	500 void Universe::run_finalizers_on_exit() {
a61af66fc99e Initial load duke parents: diff changeset	501 if (has_run_finalizers_on_exit) return;
a61af66fc99e Initial load duke parents: diff changeset	502 has_run_finalizers_on_exit = true;
a61af66fc99e Initial load duke parents: diff changeset	503
a61af66fc99e Initial load duke parents: diff changeset	504 // Called on VM exit. This ought to be run in a separate thread.
a61af66fc99e Initial load duke parents: diff changeset	505 if (TraceReferenceGC) tty->print_cr("Callback to run finalizers on exit");
a61af66fc99e Initial load duke parents: diff changeset	506 {
a61af66fc99e Initial load duke parents: diff changeset	507 PRESERVE_EXCEPTION_MARK;
1142 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1080 diff changeset	508 KlassHandle finalizer_klass(THREAD, SystemDictionary::Finalizer_klass());
0 a61af66fc99e Initial load duke parents: diff changeset	509 JavaValue result(T_VOID);
a61af66fc99e Initial load duke parents: diff changeset	510 JavaCalls::call_static(
a61af66fc99e Initial load duke parents: diff changeset	511 &result,
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	515 THREAD
a61af66fc99e Initial load duke parents: diff changeset	516 );
a61af66fc99e Initial load duke parents: diff changeset	517 // Ignore any pending exceptions
a61af66fc99e Initial load duke parents: diff changeset	518 CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load duke parents: diff changeset	519 }
a61af66fc99e Initial load duke parents: diff changeset	520 }
a61af66fc99e Initial load duke parents: diff changeset	521
a61af66fc99e Initial load duke parents: diff changeset	522
a61af66fc99e Initial load duke parents: diff changeset	523 // initialize_vtable could cause gc if
a61af66fc99e Initial load duke parents: diff changeset	524 // 1) we specified true to initialize_vtable and
a61af66fc99e Initial load duke parents: diff changeset	525 // 2) this ran after gc was enabled
a61af66fc99e Initial load duke parents: diff changeset	526 // In case those ever change we use handles for oops
a61af66fc99e Initial load duke parents: diff changeset	527 void Universe::reinitialize_vtable_of(KlassHandle k_h, TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	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 a61af66fc99e Initial load duke parents: diff changeset	530 klassVtable* vt = ko->vtable();
a61af66fc99e Initial load duke parents: diff changeset	531 if (vt) vt->initialize_vtable(false, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	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;
10973 ef57c43512d6 8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux ccheung parents: 10405 diff changeset	534 for (KlassHandle s_h(THREAD, ik->subklass());
ef57c43512d6 8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux ccheung parents: 10405 diff changeset	535 s_h() != NULL;
ef57c43512d6 8014431: cleanup warnings indicated by the -Wunused-value compiler option on linux ccheung parents: 10405 diff changeset	536 s_h = KlassHandle(THREAD, s_h()->next_sibling())) {
0 a61af66fc99e Initial load duke parents: diff changeset	537 reinitialize_vtable_of(s_h, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	538 }
a61af66fc99e Initial load duke parents: diff changeset	539 }
a61af66fc99e Initial load duke parents: diff changeset	540 }
a61af66fc99e Initial load duke parents: diff changeset	541
a61af66fc99e Initial load duke parents: diff changeset	542
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	543 void initialize_itable_for_klass(Klass* k, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	544 InstanceKlass::cast(k)->itable()->initialize_itable(false, CHECK);
0 a61af66fc99e Initial load duke parents: diff changeset	545 }
a61af66fc99e Initial load duke parents: diff changeset	546
a61af66fc99e Initial load duke parents: diff changeset	547
a61af66fc99e Initial load duke parents: diff changeset	548 void Universe::reinitialize_itables(TRAPS) {
a61af66fc99e Initial load duke parents: diff changeset	549 SystemDictionary::classes_do(initialize_itable_for_klass, CHECK);
a61af66fc99e Initial load duke parents: diff changeset	550
a61af66fc99e Initial load duke parents: diff changeset	551 }
a61af66fc99e Initial load duke parents: diff changeset	552
a61af66fc99e Initial load duke parents: diff changeset	553
a61af66fc99e Initial load duke parents: diff changeset	554 bool Universe::on_page_boundary(void* addr) {
a61af66fc99e Initial load duke parents: diff changeset	555 return ((uintptr_t) addr) % os::vm_page_size() == 0;
a61af66fc99e Initial load duke parents: diff changeset	556 }
a61af66fc99e Initial load duke parents: diff changeset	557
a61af66fc99e Initial load duke parents: diff changeset	558
a61af66fc99e Initial load duke parents: diff changeset	559 bool Universe::should_fill_in_stack_trace(Handle throwable) {
a61af66fc99e Initial load duke parents: diff changeset	560 // never attempt to fill in the stack trace of preallocated errors that do not have
a61af66fc99e Initial load duke parents: diff changeset	561 // backtrace. These errors are kept alive forever and may be "re-used" when all
a61af66fc99e Initial load duke parents: diff changeset	562 // preallocated errors with backtrace have been consumed. Also need to avoid
a61af66fc99e Initial load duke parents: diff changeset	563 // a potential loop which could happen if an out of memory occurs when attempting
a61af66fc99e Initial load duke parents: diff changeset	564 // to allocate the backtrace.
a61af66fc99e Initial load duke parents: diff changeset	565 return ((throwable() != Universe::_out_of_memory_error_java_heap) &&
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	566 (throwable() != Universe::_out_of_memory_error_metaspace) &&
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	567 (throwable() != Universe::_out_of_memory_error_class_metaspace) &&
0 a61af66fc99e Initial load duke parents: diff changeset	568 (throwable() != Universe::_out_of_memory_error_array_size) &&
a61af66fc99e Initial load duke parents: diff changeset	569 (throwable() != Universe::_out_of_memory_error_gc_overhead_limit));
a61af66fc99e Initial load duke parents: diff changeset	570 }
a61af66fc99e Initial load duke parents: diff changeset	571
a61af66fc99e Initial load duke parents: diff changeset	572
a61af66fc99e Initial load duke parents: diff changeset	573 oop Universe::gen_out_of_memory_error(oop default_err) {
a61af66fc99e Initial load duke parents: diff changeset	574 // generate an out of memory error:
a61af66fc99e Initial load duke parents: diff changeset	575 // - if there is a preallocated error with backtrace available then return it wth
a61af66fc99e Initial load duke parents: diff changeset	576 // a filled in stack trace.
a61af66fc99e Initial load duke parents: diff changeset	577 // - if there are no preallocated errors with backtrace available then return
a61af66fc99e Initial load duke parents: diff changeset	578 // an error without backtrace.
a61af66fc99e Initial load duke parents: diff changeset	579 int next;
a61af66fc99e Initial load duke parents: diff changeset	580 if (_preallocated_out_of_memory_error_avail_count > 0) {
a61af66fc99e Initial load duke parents: diff changeset	581 next = (int)Atomic::add(-1, &_preallocated_out_of_memory_error_avail_count);
a61af66fc99e Initial load duke parents: diff changeset	582 assert(next < (int)PreallocatedOutOfMemoryErrorCount, "avail count is corrupt");
a61af66fc99e Initial load duke parents: diff changeset	583 } else {
a61af66fc99e Initial load duke parents: diff changeset	584 next = -1;
a61af66fc99e Initial load duke parents: diff changeset	585 }
a61af66fc99e Initial load duke parents: diff changeset	586 if (next < 0) {
a61af66fc99e Initial load duke parents: diff changeset	587 // all preallocated errors have been used.
a61af66fc99e Initial load duke parents: diff changeset	588 // return default
a61af66fc99e Initial load duke parents: diff changeset	589 return default_err;
a61af66fc99e Initial load duke parents: diff changeset	590 } else {
a61af66fc99e Initial load duke parents: diff changeset	591 // get the error object at the slot and set set it to NULL so that the
a61af66fc99e Initial load duke parents: diff changeset	592 // array isn't keeping it alive anymore.
a61af66fc99e Initial load duke parents: diff changeset	593 oop exc = preallocated_out_of_memory_errors()->obj_at(next);
a61af66fc99e Initial load duke parents: diff changeset	594 assert(exc != NULL, "slot has been used already");
a61af66fc99e Initial load duke parents: diff changeset	595 preallocated_out_of_memory_errors()->obj_at_put(next, NULL);
a61af66fc99e Initial load duke parents: diff changeset	596
a61af66fc99e Initial load duke parents: diff changeset	597 // use the message from the default error
a61af66fc99e Initial load duke parents: diff changeset	598 oop msg = java_lang_Throwable::message(default_err);
a61af66fc99e Initial load duke parents: diff changeset	599 assert(msg != NULL, "no message");
a61af66fc99e Initial load duke parents: diff changeset	600 java_lang_Throwable::set_message(exc, msg);
a61af66fc99e Initial load duke parents: diff changeset	601
a61af66fc99e Initial load duke parents: diff changeset	602 // populate the stack trace and return it.
a61af66fc99e Initial load duke parents: diff changeset	603 java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(exc);
a61af66fc99e Initial load duke parents: diff changeset	604 return exc;
a61af66fc99e Initial load duke parents: diff changeset	605 }
a61af66fc99e Initial load duke parents: diff changeset	606 }
a61af66fc99e Initial load duke parents: diff changeset	607
a61af66fc99e Initial load duke parents: diff changeset	608 static intptr_t non_oop_bits = 0;
a61af66fc99e Initial load duke parents: diff changeset	609
a61af66fc99e Initial load duke parents: diff changeset	610 void* Universe::non_oop_word() {
a61af66fc99e Initial load duke parents: diff changeset	611 // Neither the high bits nor the low bits of this value is allowed
a61af66fc99e Initial load duke parents: diff changeset	612 // to look like (respectively) the high or low bits of a real oop.
a61af66fc99e Initial load duke parents: diff changeset	613 //
a61af66fc99e Initial load duke parents: diff changeset	614 // High and low are CPU-specific notions, but low always includes
a61af66fc99e Initial load duke parents: diff changeset	615 // the low-order bit. Since oops are always aligned at least mod 4,
a61af66fc99e Initial load duke parents: diff changeset	616 // setting the low-order bit will ensure that the low half of the
a61af66fc99e Initial load duke parents: diff changeset	617 // word will never look like that of a real oop.
a61af66fc99e Initial load duke parents: diff changeset	618 //
a61af66fc99e Initial load duke parents: diff changeset	619 // Using the OS-supplied non-memory-address word (usually 0 or -1)
a61af66fc99e Initial load duke parents: diff changeset	620 // will take care of the high bits, however many there are.
a61af66fc99e Initial load duke parents: diff changeset	621
a61af66fc99e Initial load duke parents: diff changeset	622 if (non_oop_bits == 0) {
a61af66fc99e Initial load duke parents: diff changeset	623 non_oop_bits = (intptr_t)os::non_memory_address_word() \| 1;
a61af66fc99e Initial load duke parents: diff changeset	624 }
a61af66fc99e Initial load duke parents: diff changeset	625
a61af66fc99e Initial load duke parents: diff changeset	626 return (void*)non_oop_bits;
a61af66fc99e Initial load duke parents: diff changeset	627 }
a61af66fc99e Initial load duke parents: diff changeset	628
a61af66fc99e Initial load duke parents: diff changeset	629 jint universe_init() {
a61af66fc99e Initial load duke parents: diff changeset	630 assert(!Universe::_fully_initialized, "called after initialize_vtables");
a61af66fc99e Initial load duke parents: diff changeset	631 guarantee(1 << LogHeapWordSize == sizeof(HeapWord),
a61af66fc99e Initial load duke parents: diff changeset	632 "LogHeapWordSize is incorrect.");
a61af66fc99e Initial load duke parents: diff changeset	633 guarantee(sizeof(oop) >= sizeof(HeapWord), "HeapWord larger than oop?");
a61af66fc99e Initial load duke parents: diff changeset	634 guarantee(sizeof(oop) % sizeof(HeapWord) == 0,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	635 "oop size is not not a multiple of HeapWord size");
0 a61af66fc99e Initial load duke parents: diff changeset	636 TraceTime timer("Genesis", TraceStartupTime);
a61af66fc99e Initial load duke parents: diff changeset	637 GC_locker::lock(); // do not allow gc during bootstrapping
a61af66fc99e Initial load duke parents: diff changeset	638 JavaClasses::compute_hard_coded_offsets();
a61af66fc99e Initial load duke parents: diff changeset	639
a61af66fc99e Initial load duke parents: diff changeset	640 jint status = Universe::initialize_heap();
a61af66fc99e Initial load duke parents: diff changeset	641 if (status != JNI_OK) {
a61af66fc99e Initial load duke parents: diff changeset	642 return status;
a61af66fc99e Initial load duke parents: diff changeset	643 }
a61af66fc99e Initial load duke parents: diff changeset	644
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	645 // Create memory for metadata. Must be after initializing heap for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	646 // DumpSharedSpaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	647 ClassLoaderData::init_null_class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	648
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	649 // We have a heap so create the Method* caches before
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	650 // Metaspace::initialize_shared_spaces() tries to populate them.
0 a61af66fc99e Initial load duke parents: diff changeset	651 Universe::_finalizer_register_cache = new LatestMethodOopCache();
6751 2a48c84f1d04 7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow coleenp parents: 6736 diff changeset	652 Universe::_loader_addClass_cache = new LatestMethodOopCache();
0 a61af66fc99e Initial load duke parents: diff changeset	653 Universe::_reflect_invoke_cache = new ActiveMethodOopsCache();
a61af66fc99e Initial load duke parents: diff changeset	654
a61af66fc99e Initial load duke parents: diff changeset	655 if (UseSharedSpaces) {
a61af66fc99e Initial load duke parents: diff changeset	656 // Read the data structures supporting the shared spaces (shared
a61af66fc99e Initial load duke parents: diff changeset	657 // system dictionary, symbol table, etc.). After that, access to
a61af66fc99e Initial load duke parents: diff changeset	658 // the file (other than the mapped regions) is no longer needed, and
a61af66fc99e Initial load duke parents: diff changeset	659 // the file is closed. Closing the file does not affect the
a61af66fc99e Initial load duke parents: diff changeset	660 // currently mapped regions.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	661 MetaspaceShared::initialize_shared_spaces();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	662 StringTable::create_table();
0 a61af66fc99e Initial load duke parents: diff changeset	663 } else {
a61af66fc99e Initial load duke parents: diff changeset	664 SymbolTable::create_table();
a61af66fc99e Initial load duke parents: diff changeset	665 StringTable::create_table();
a61af66fc99e Initial load duke parents: diff changeset	666 ClassLoader::create_package_info_table();
a61af66fc99e Initial load duke parents: diff changeset	667 }
a61af66fc99e Initial load duke parents: diff changeset	668
a61af66fc99e Initial load duke parents: diff changeset	669 return JNI_OK;
a61af66fc99e Initial load duke parents: diff changeset	670 }
a61af66fc99e Initial load duke parents: diff changeset	671
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	672 // 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	673 // when compressed oops are used:
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	674 // 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	675 // NarrowOopHeapBaseMin + heap_size < 4Gb
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	676 // 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	677 // NarrowOopHeapBaseMin + heap_size < 32Gb
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	678 // 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	679
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	680 // 4Gb
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	681 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	682 // 32Gb
1571 2d127394260e 6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb kvn parents: 1507 diff changeset	683 // OopEncodingHeapMax == NarrowOopHeapMax << LogMinObjAlignmentInBytes;
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	684
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	685 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	686 size_t base = 0;
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	687 #ifdef _LP64
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	688 if (UseCompressedOops) {
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	689 assert(mode == UnscaledNarrowOop \|\|
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	690 mode == ZeroBasedNarrowOop \|\|
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	691 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	692 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	693 // Return specified base for the first request.
1a81ea4b45d4 6869822: assert(Universe::narrow_oop_shift() == 0,"use unscaled narrow oop") kvn parents: 845 diff changeset	694 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	695 base = HeapBaseMinAddress;
7982 10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	696
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	697 // 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	698 // UnscaledNarrowOop then just use UnscaledNarrowOop.
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	699 } else if ((total_size <= OopEncodingHeapMax) && (mode != HeapBasedNarrowOop) &&
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	700 (!UseCompressedKlassPointers \|\|
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	701 (((OopEncodingHeapMax - heap_size) + Universe::class_metaspace_size()) <= KlassEncodingMetaspaceMax))) {
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	702 // 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	703 // than total_size.
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	704 if ((total_size <= NarrowOopHeapMax) && (mode == UnscaledNarrowOop) &&
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	705 (Universe::narrow_oop_shift() == 0)) {
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	706 // Use 32-bits oops without encoding and
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	707 // 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	708 base = (NarrowOopHeapMax - heap_size);
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	709 } else {
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	710 // Can't reserve with NarrowOopShift == 0
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	711 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	712 if (mode == UnscaledNarrowOop \|\|
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	713 mode == ZeroBasedNarrowOop && total_size <= NarrowOopHeapMax) {
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	714 // 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	715 // 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	716 // 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	717 base = (OopEncodingHeapMax - heap_size);
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	718 }
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	719 }
7982 10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	720
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	721 // 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	722 // (KlassEncodingMetaspaceMax - class_metaspace_size()).
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	723 } else if (UseCompressedKlassPointers && (mode != HeapBasedNarrowOop) &&
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	724 (Universe::class_metaspace_size() + HeapBaseMinAddress <= KlassEncodingMetaspaceMax) &&
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	725 (KlassEncodingMetaspaceMax + heap_size - Universe::class_metaspace_size() <= OopEncodingHeapMax)) {
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	726 base = (KlassEncodingMetaspaceMax - Universe::class_metaspace_size());
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	727 } else {
7982 10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	728 // 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	729 // 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	730 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	731 }
7982 10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	732
1057 f334aec453a1 6896084: VM does not reserve protected page below heap for compressed oops implicit null checks kvn parents: 922 diff changeset	733 // 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	734 // 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	735 // 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	736 if ((base != 0) && ((base + heap_size) <= OopEncodingHeapMax) &&
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	737 (!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	738 // 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	739 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	740 // 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	741 // 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	742 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	743 } else {
f334aec453a1 6896084: VM does not reserve protected page below heap for compressed oops implicit null checks kvn parents: 922 diff changeset	744 // 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	745 // 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	746 // 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	747 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	748 #ifdef _WIN64
f334aec453a1 6896084: VM does not reserve protected page below heap for compressed oops implicit null checks kvn parents: 922 diff changeset	749 if (UseLargePages) {
f334aec453a1 6896084: VM does not reserve protected page below heap for compressed oops implicit null checks kvn parents: 922 diff changeset	750 // 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	751 // 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	752 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	753 }
f334aec453a1 6896084: VM does not reserve protected page below heap for compressed oops implicit null checks kvn parents: 922 diff changeset	754 #endif // _WIN64
f334aec453a1 6896084: VM does not reserve protected page below heap for compressed oops implicit null checks kvn parents: 922 diff changeset	755 }
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	756 }
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	757 #endif
1057 f334aec453a1 6896084: VM does not reserve protected page below heap for compressed oops implicit null checks kvn parents: 922 diff changeset	758 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	759 }
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	760
0 a61af66fc99e Initial load duke parents: diff changeset	761 jint Universe::initialize_heap() {
a61af66fc99e Initial load duke parents: diff changeset	762
a61af66fc99e Initial load duke parents: diff changeset	763 if (UseParallelGC) {
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7187 diff changeset	764 #if INCLUDE_ALL_GCS
0 a61af66fc99e Initial load duke parents: diff changeset	765 Universe::_collectedHeap = new ParallelScavengeHeap();
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7187 diff changeset	766 #else // INCLUDE_ALL_GCS
6854 fb19af007ffc 7189254: Change makefiles for more flexibility to override defaults jprovino parents: 6751 diff changeset	767 fatal("UseParallelGC not supported in this VM.");
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7187 diff changeset	768 #endif // INCLUDE_ALL_GCS
0 a61af66fc99e Initial load duke parents: diff changeset	769
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	770 } else if (UseG1GC) {
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7187 diff changeset	771 #if INCLUDE_ALL_GCS
4013 074f0252cc13 7088680: G1: Cleanup in the G1CollectorPolicy class tonyp parents: 3960 diff changeset	772 G1CollectorPolicy* g1p = new G1CollectorPolicy();
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	773 G1CollectedHeap* g1h = new G1CollectedHeap(g1p);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	774 Universe::_collectedHeap = g1h;
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7187 diff changeset	775 #else // INCLUDE_ALL_GCS
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	776 fatal("UseG1GC not supported in java kernel vm.");
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7187 diff changeset	777 #endif // INCLUDE_ALL_GCS
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	778
0 a61af66fc99e Initial load duke parents: diff changeset	779 } else {
a61af66fc99e Initial load duke parents: diff changeset	780 GenCollectorPolicy *gc_policy;
a61af66fc99e Initial load duke parents: diff changeset	781
a61af66fc99e Initial load duke parents: diff changeset	782 if (UseSerialGC) {
a61af66fc99e Initial load duke parents: diff changeset	783 gc_policy = new MarkSweepPolicy();
a61af66fc99e Initial load duke parents: diff changeset	784 } else if (UseConcMarkSweepGC) {
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7187 diff changeset	785 #if INCLUDE_ALL_GCS
0 a61af66fc99e Initial load duke parents: diff changeset	786 if (UseAdaptiveSizePolicy) {
a61af66fc99e Initial load duke parents: diff changeset	787 gc_policy = new ASConcurrentMarkSweepPolicy();
a61af66fc99e Initial load duke parents: diff changeset	788 } else {
a61af66fc99e Initial load duke parents: diff changeset	789 gc_policy = new ConcurrentMarkSweepPolicy();
a61af66fc99e Initial load duke parents: diff changeset	790 }
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7187 diff changeset	791 #else // INCLUDE_ALL_GCS
6854 fb19af007ffc 7189254: Change makefiles for more flexibility to override defaults jprovino parents: 6751 diff changeset	792 fatal("UseConcMarkSweepGC not supported in this VM.");
8001 db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS jprovino parents: 7187 diff changeset	793 #endif // INCLUDE_ALL_GCS
0 a61af66fc99e Initial load duke parents: diff changeset	794 } else { // default old generation
a61af66fc99e Initial load duke parents: diff changeset	795 gc_policy = new MarkSweepPolicy();
a61af66fc99e Initial load duke parents: diff changeset	796 }
a61af66fc99e Initial load duke parents: diff changeset	797
a61af66fc99e Initial load duke parents: diff changeset	798 Universe::_collectedHeap = new GenCollectedHeap(gc_policy);
a61af66fc99e Initial load duke parents: diff changeset	799 }
a61af66fc99e Initial load duke parents: diff changeset	800
a61af66fc99e Initial load duke parents: diff changeset	801 jint status = Universe::heap()->initialize();
a61af66fc99e Initial load duke parents: diff changeset	802 if (status != JNI_OK) {
a61af66fc99e Initial load duke parents: diff changeset	803 return status;
a61af66fc99e Initial load duke parents: diff changeset	804 }
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	805
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	806 #ifdef _LP64
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	807 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	808 // 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	809 // 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	810 // 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	811 // See needs_explicit_null_check.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	812 // 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	813 // compressed oops for pstack code.
2080 c04052fd6ae1 7006505: Use kstat info to identify SPARC processor kvn parents: 1972 diff changeset	814 bool verbose = PrintCompressedOopsMode \|\| (PrintMiscellaneous && Verbose);
c04052fd6ae1 7006505: Use kstat info to identify SPARC processor kvn parents: 1972 diff changeset	815 if (verbose) {
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	816 tty->cr();
1963 0ac62b4d6507 6999491: non-zero COOPs are used when they should not kvn parents: 1579 diff changeset	817 tty->print("heap address: " PTR_FORMAT ", size: " SIZE_FORMAT " MB",
0ac62b4d6507 6999491: non-zero COOPs are used when they should not kvn parents: 1579 diff changeset	818 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	819 }
7982 10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	820 if (((uint64_t)Universe::heap()->reserved_region().end() > OopEncodingHeapMax) \|\|
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	821 (UseCompressedKlassPointers &&
10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	822 ((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	823 // Can't reserve heap below 32Gb.
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	824 // 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	825 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
2080 c04052fd6ae1 7006505: Use kstat info to identify SPARC processor kvn parents: 1972 diff changeset	826 if (verbose) {
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	827 tty->print(", %s: "PTR_FORMAT,
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	828 narrow_oop_mode_to_string(HeapBasedNarrowOop),
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	829 Universe::narrow_oop_base());
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	830 }
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	831 } else {
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	832 Universe::set_narrow_oop_base(0);
2080 c04052fd6ae1 7006505: Use kstat info to identify SPARC processor kvn parents: 1972 diff changeset	833 if (verbose) {
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	834 tty->print(", %s", narrow_oop_mode_to_string(ZeroBasedNarrowOop));
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	835 }
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	836 #ifdef _WIN64
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	837 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	838 // 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	839 // mode with zero based Compressed Oops.
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	840 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	841 }
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	842 #endif // _WIN64
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	843 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	844 // Can't reserve heap below 4Gb.
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	845 Universe::set_narrow_oop_shift(LogMinObjAlignmentInBytes);
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	846 } else {
922 1a81ea4b45d4 6869822: assert(Universe::narrow_oop_shift() == 0,"use unscaled narrow oop") kvn parents: 845 diff changeset	847 Universe::set_narrow_oop_shift(0);
2080 c04052fd6ae1 7006505: Use kstat info to identify SPARC processor kvn parents: 1972 diff changeset	848 if (verbose) {
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	849 tty->print(", %s", narrow_oop_mode_to_string(UnscaledNarrowOop));
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	850 }
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	851 }
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	852 }
2080 c04052fd6ae1 7006505: Use kstat info to identify SPARC processor kvn parents: 1972 diff changeset	853 if (verbose) {
642 660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	854 tty->cr();
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	855 tty->cr();
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	856 }
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	857 if (UseCompressedKlassPointers) {
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	858 Universe::set_narrow_klass_base(Universe::narrow_oop_base());
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	859 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	860 }
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	861 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	862 }
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	863 // Universe::narrow_oop_base() is one page below the metaspace
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	864 // base. The actual metaspace base depends on alignment constraints
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	865 // so we don't know its exact location here.
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	866 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	867 Universe::narrow_oop_base() == NULL, "invalid value");
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	868 assert(Universe::narrow_oop_shift() == LogMinObjAlignmentInBytes \|\|
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	869 Universe::narrow_oop_shift() == 0, "invalid value");
660978a2a31a 6791178: Specialize for zero as the compressed oop vm heap base kvn parents: 494 diff changeset	870 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	871
a61af66fc99e Initial load duke parents: diff changeset	872 // We will never reach the CATCH below since Exceptions::_throw will cause
a61af66fc99e Initial load duke parents: diff changeset	873 // the VM to exit if an exception is thrown during initialization
a61af66fc99e Initial load duke parents: diff changeset	874
a61af66fc99e Initial load duke parents: diff changeset	875 if (UseTLAB) {
a61af66fc99e Initial load duke parents: diff changeset	876 assert(Universe::heap()->supports_tlab_allocation(),
a61af66fc99e Initial load duke parents: diff changeset	877 "Should support thread-local allocation buffers");
a61af66fc99e Initial load duke parents: diff changeset	878 ThreadLocalAllocBuffer::startup_initialization();
a61af66fc99e Initial load duke parents: diff changeset	879 }
a61af66fc99e Initial load duke parents: diff changeset	880 return JNI_OK;
a61af66fc99e Initial load duke parents: diff changeset	881 }
a61af66fc99e Initial load duke parents: diff changeset	882
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	883
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	884 // 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	885 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	886 // 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	887 // be compressed the same as instances.
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	888 // 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	889 // the actual alignment depends on its size.
7982 10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	890 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	891 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	892 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	893 "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	894 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	895
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	896 ReservedHeapSpace total_rs(total_reserved, alignment, UseLargePages, addr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	897
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	898 if (UseCompressedOops) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	899 if (addr != NULL && !total_rs.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	900 // 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	901 // 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	902 // Try again to reserver heap higher.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	903 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	904
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	905 ReservedHeapSpace total_rs0(total_reserved, alignment,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	906 UseLargePages, addr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	907
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	908 if (addr != NULL && !total_rs0.is_reserved()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	909 // 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	910 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	911 assert(addr == NULL, "");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	912
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	913 ReservedHeapSpace total_rs1(total_reserved, alignment,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	914 UseLargePages, addr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	915 total_rs = total_rs1;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	916 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	917 total_rs = total_rs0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	918 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	919 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	920 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	921
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	922 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	923 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	924 return total_rs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	925 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	926
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	927 // 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	928 // 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	929 // 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	930 // 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	931 // 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	932 // 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	933 // unreachable.
7982 10d5f25a7c67 8000968: NPG: UseCompressedKlassPointers asserts with ObjectAlignmentInBytes for > 32G CompressedOops hseigel parents: 7623 diff changeset	934 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	935 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	936 Metaspace::initialize_class_space(class_rs);
6848 8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	937
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	938 if (UseCompressedOops) {
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	939 // Universe::initialize_heap() will reset this to NULL if unscaled
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	940 // or zero-based narrow oops are actually used.
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	941 address base = (address)(total_rs.base() - os::vm_page_size());
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	942 Universe::set_narrow_oop_base(base);
8e47bac5643a 7054512: Compress class pointers after perm gen removal roland parents: 6751 diff changeset	943 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	944 return heap_rs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	945 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	946
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	947
0 a61af66fc99e Initial load duke parents: diff changeset	948 // It's the caller's repsonsibility to ensure glitch-freedom
a61af66fc99e Initial load duke parents: diff changeset	949 // (if required).
a61af66fc99e Initial load duke parents: diff changeset	950 void Universe::update_heap_info_at_gc() {
a61af66fc99e Initial load duke parents: diff changeset	951 _heap_capacity_at_last_gc = heap()->capacity();
a61af66fc99e Initial load duke parents: diff changeset	952 _heap_used_at_last_gc = heap()->used();
a61af66fc99e Initial load duke parents: diff changeset	953 }
a61af66fc99e Initial load duke parents: diff changeset	954
a61af66fc99e Initial load duke parents: diff changeset	955
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	956 const char* Universe::narrow_oop_mode_to_string(Universe::NARROW_OOP_MODE mode) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	957 switch (mode) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	958 case UnscaledNarrowOop:
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	959 return "32-bits Oops";
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	960 case ZeroBasedNarrowOop:
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	961 return "zero based Compressed Oops";
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	962 case HeapBasedNarrowOop:
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	963 return "Compressed Oops with base";
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	964 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	965
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	966 ShouldNotReachHere();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	967 return "";
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	968 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	969
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	970
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	971 Universe::NARROW_OOP_MODE Universe::narrow_oop_mode() {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	972 if (narrow_oop_base() != 0) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	973 return HeapBasedNarrowOop;
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	974 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	975
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	976 if (narrow_oop_shift() != 0) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	977 return ZeroBasedNarrowOop;
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	978 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	979
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	980 return UnscaledNarrowOop;
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	981 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10358 diff changeset	982
0 a61af66fc99e Initial load duke parents: diff changeset	983
a61af66fc99e Initial load duke parents: diff changeset	984 void universe2_init() {
a61af66fc99e Initial load duke parents: diff changeset	985 EXCEPTION_MARK;
a61af66fc99e Initial load duke parents: diff changeset	986 Universe::genesis(CATCH);
a61af66fc99e Initial load duke parents: diff changeset	987 }
a61af66fc99e Initial load duke parents: diff changeset	988
a61af66fc99e Initial load duke parents: diff changeset	989
a61af66fc99e Initial load duke parents: diff changeset	990 // This function is defined in JVM.cpp
a61af66fc99e Initial load duke parents: diff changeset	991 extern void initialize_converter_functions();
a61af66fc99e Initial load duke parents: diff changeset	992
a61af66fc99e Initial load duke parents: diff changeset	993 bool universe_post_init() {
1959 9eecf81a02fb 7000578: CMS: assert(SafepointSynchronize::is_at_safepoint()) failed: Else races are possible ysr parents: 1579 diff changeset	994 assert(!is_init_completed(), "Error: initialization not yet completed!");
0 a61af66fc99e Initial load duke parents: diff changeset	995 Universe::_fully_initialized = true;
a61af66fc99e Initial load duke parents: diff changeset	996 EXCEPTION_MARK;
a61af66fc99e Initial load duke parents: diff changeset	997 { ResourceMark rm;
a61af66fc99e Initial load duke parents: diff changeset	998 Interpreter::initialize(); // needed for interpreter entry points
a61af66fc99e Initial load duke parents: diff changeset	999 if (!UseSharedSpaces) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1000 HandleMark hm(THREAD);
1142 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1080 diff changeset	1001 KlassHandle ok_h(THREAD, SystemDictionary::Object_klass());
0 a61af66fc99e Initial load duke parents: diff changeset	1002 Universe::reinitialize_vtable_of(ok_h, CHECK_false);
a61af66fc99e Initial load duke parents: diff changeset	1003 Universe::reinitialize_itables(CHECK_false);
a61af66fc99e Initial load duke parents: diff changeset	1004 }
a61af66fc99e Initial load duke parents: diff changeset	1005 }
a61af66fc99e Initial load duke parents: diff changeset	1006
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1007 HandleMark hm(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1008 Klass* k;
0 a61af66fc99e Initial load duke parents: diff changeset	1009 instanceKlassHandle k_h;
a61af66fc99e Initial load duke parents: diff changeset	1010 // Setup preallocated empty java.lang.Class array
1142 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1080 diff changeset	1011 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	1012
0 a61af66fc99e Initial load duke parents: diff changeset	1013 // Setup preallocated OutOfMemoryError errors
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2080 diff changeset	1014 k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_OutOfMemoryError(), true, CHECK_false);
0 a61af66fc99e Initial load duke parents: diff changeset	1015 k_h = instanceKlassHandle(THREAD, k);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1016 Universe::_out_of_memory_error_java_heap = k_h->allocate_instance(CHECK_false);
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	1017 Universe::_out_of_memory_error_metaspace = k_h->allocate_instance(CHECK_false);
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	1018 Universe::_out_of_memory_error_class_metaspace = k_h->allocate_instance(CHECK_false);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1019 Universe::_out_of_memory_error_array_size = k_h->allocate_instance(CHECK_false);
0 a61af66fc99e Initial load duke parents: diff changeset	1020 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	1021 k_h->allocate_instance(CHECK_false);
0 a61af66fc99e Initial load duke parents: diff changeset	1022
a61af66fc99e Initial load duke parents: diff changeset	1023 // Setup preallocated NullPointerException
a61af66fc99e Initial load duke parents: diff changeset	1024 // (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	1025 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	1026 Universe::_null_ptr_exception_instance = InstanceKlass::cast(k)->allocate_instance(CHECK_false);
0 a61af66fc99e Initial load duke parents: diff changeset	1027 // Setup preallocated ArithmeticException
a61af66fc99e Initial load duke parents: diff changeset	1028 // (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	1029 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	1030 Universe::_arithmetic_exception_instance = InstanceKlass::cast(k)->allocate_instance(CHECK_false);
0 a61af66fc99e Initial load duke parents: diff changeset	1031 // Virtual Machine Error for when we get into a situation we can't resolve
a61af66fc99e Initial load duke parents: diff changeset	1032 k = SystemDictionary::resolve_or_fail(
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2080 diff changeset	1033 vmSymbols::java_lang_VirtualMachineError(), true, CHECK_false);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1034 bool linked = InstanceKlass::cast(k)->link_class_or_fail(CHECK_false);
0 a61af66fc99e Initial load duke parents: diff changeset	1035 if (!linked) {
a61af66fc99e Initial load duke parents: diff changeset	1036 tty->print_cr("Unable to link/verify VirtualMachineError class");
a61af66fc99e Initial load duke parents: diff changeset	1037 return false; // initialization failed
a61af66fc99e Initial load duke parents: diff changeset	1038 }
a61af66fc99e Initial load duke parents: diff changeset	1039 Universe::_virtual_machine_error_instance =
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1040 InstanceKlass::cast(k)->allocate_instance(CHECK_false);
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2080 diff changeset	1041
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1042 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	1043
0 a61af66fc99e Initial load duke parents: diff changeset	1044 if (!DumpSharedSpaces) {
a61af66fc99e Initial load duke parents: diff changeset	1045 // These are the only Java fields that are currently set during shared space dumping.
a61af66fc99e Initial load duke parents: diff changeset	1046 // We prefer to not handle this generally, so we always reinitialize these detail messages.
a61af66fc99e Initial load duke parents: diff changeset	1047 Handle msg = java_lang_String::create_from_str("Java heap space", CHECK_false);
a61af66fc99e Initial load duke parents: diff changeset	1048 java_lang_Throwable::set_message(Universe::_out_of_memory_error_java_heap, msg());
a61af66fc99e Initial load duke parents: diff changeset	1049
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1050 msg = java_lang_String::create_from_str("Metadata space", CHECK_false);
11064 de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	1051 java_lang_Throwable::set_message(Universe::_out_of_memory_error_metaspace, msg());
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	1052 msg = java_lang_String::create_from_str("Class Metadata space", CHECK_false);
de2d15ce3d4a 8015391: NPG: With -XX:+UseCompressedKlassPointers OOME due to exhausted metadata space could occur when metaspace is almost empty coleenp parents: 10973 diff changeset	1053 java_lang_Throwable::set_message(Universe::_out_of_memory_error_class_metaspace, msg());
0 a61af66fc99e Initial load duke parents: diff changeset	1054
a61af66fc99e Initial load duke parents: diff changeset	1055 msg = java_lang_String::create_from_str("Requested array size exceeds VM limit", CHECK_false);
a61af66fc99e Initial load duke parents: diff changeset	1056 java_lang_Throwable::set_message(Universe::_out_of_memory_error_array_size, msg());
a61af66fc99e Initial load duke parents: diff changeset	1057
a61af66fc99e Initial load duke parents: diff changeset	1058 msg = java_lang_String::create_from_str("GC overhead limit exceeded", CHECK_false);
a61af66fc99e Initial load duke parents: diff changeset	1059 java_lang_Throwable::set_message(Universe::_out_of_memory_error_gc_overhead_limit, msg());
a61af66fc99e Initial load duke parents: diff changeset	1060
a61af66fc99e Initial load duke parents: diff changeset	1061 msg = java_lang_String::create_from_str("/ by zero", CHECK_false);
a61af66fc99e Initial load duke parents: diff changeset	1062 java_lang_Throwable::set_message(Universe::_arithmetic_exception_instance, msg());
a61af66fc99e Initial load duke parents: diff changeset	1063
a61af66fc99e Initial load duke parents: diff changeset	1064 // Setup the array of errors that have preallocated backtrace
a61af66fc99e Initial load duke parents: diff changeset	1065 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	1066 assert(k->name() == vmSymbols::java_lang_OutOfMemoryError(), "should be out of memory error");
0 a61af66fc99e Initial load duke parents: diff changeset	1067 k_h = instanceKlassHandle(THREAD, k);
a61af66fc99e Initial load duke parents: diff changeset	1068
a61af66fc99e Initial load duke parents: diff changeset	1069 int len = (StackTraceInThrowable) ? (int)PreallocatedOutOfMemoryErrorCount : 0;
a61af66fc99e Initial load duke parents: diff changeset	1070 Universe::_preallocated_out_of_memory_error_array = oopFactory::new_objArray(k_h(), len, CHECK_false);
a61af66fc99e Initial load duke parents: diff changeset	1071 for (int i=0; i<len; i++) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1072 oop err = k_h->allocate_instance(CHECK_false);
0 a61af66fc99e Initial load duke parents: diff changeset	1073 Handle err_h = Handle(THREAD, err);
a61af66fc99e Initial load duke parents: diff changeset	1074 java_lang_Throwable::allocate_backtrace(err_h, CHECK_false);
a61af66fc99e Initial load duke parents: diff changeset	1075 Universe::preallocated_out_of_memory_errors()->obj_at_put(i, err_h());
a61af66fc99e Initial load duke parents: diff changeset	1076 }
a61af66fc99e Initial load duke parents: diff changeset	1077 Universe::_preallocated_out_of_memory_error_avail_count = (jint)len;
a61af66fc99e Initial load duke parents: diff changeset	1078 }
a61af66fc99e Initial load duke parents: diff changeset	1079
a61af66fc99e Initial load duke parents: diff changeset	1080
a61af66fc99e Initial load duke parents: diff changeset	1081 // Setup static method for registering finalizers
a61af66fc99e Initial load duke parents: diff changeset	1082 // The finalizer klass must be linked before looking up the method, in
a61af66fc99e Initial load duke parents: diff changeset	1083 // case it needs to get rewritten.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1084 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	1085 Method* m = InstanceKlass::cast(SystemDictionary::Finalizer_klass())->find_method(
0 a61af66fc99e Initial load duke parents: diff changeset	1086 vmSymbols::register_method_name(),
a61af66fc99e Initial load duke parents: diff changeset	1087 vmSymbols::register_method_signature());
a61af66fc99e Initial load duke parents: diff changeset	1088 if (m == NULL \|\| !m->is_static()) {
a61af66fc99e Initial load duke parents: diff changeset	1089 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodException(),
a61af66fc99e Initial load duke parents: diff changeset	1090 "java.lang.ref.Finalizer.register", false);
a61af66fc99e Initial load duke parents: diff changeset	1091 }
a61af66fc99e Initial load duke parents: diff changeset	1092 Universe::_finalizer_register_cache->init(
1142 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 1080 diff changeset	1093 SystemDictionary::Finalizer_klass(), m, CHECK_false);
0 a61af66fc99e Initial load duke parents: diff changeset	1094
a61af66fc99e Initial load duke parents: diff changeset	1095 // Resolve on first use and initialize class.
a61af66fc99e Initial load duke parents: diff changeset	1096 // Note: No race-condition here, since a resolve will always return the same result
a61af66fc99e Initial load duke parents: diff changeset	1097
a61af66fc99e Initial load duke parents: diff changeset	1098 // Setup method for security checks
2177 3582bf76420e 6990754: Use native memory and reference counting to implement SymbolTable coleenp parents: 2080 diff changeset	1099 k = SystemDictionary::resolve_or_fail(vmSymbols::java_lang_reflect_Method(), true, CHECK_false);
0 a61af66fc99e Initial load duke parents: diff changeset	1100 k_h = instanceKlassHandle(THREAD, k);
a61af66fc99e Initial load duke parents: diff changeset	1101 k_h->link_class(CHECK_false);
1507 cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation jrose parents: 1142 diff changeset	1102 m = k_h->find_method(vmSymbols::invoke_name(), vmSymbols::object_object_array_object_signature());
0 a61af66fc99e Initial load duke parents: diff changeset	1103 if (m == NULL \|\| m->is_static()) {
a61af66fc99e Initial load duke parents: diff changeset	1104 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodException(),
a61af66fc99e Initial load duke parents: diff changeset	1105 "java.lang.reflect.Method.invoke", false);
a61af66fc99e Initial load duke parents: diff changeset	1106 }
a61af66fc99e Initial load duke parents: diff changeset	1107 Universe::_reflect_invoke_cache->init(k_h(), m, CHECK_false);
a61af66fc99e Initial load duke parents: diff changeset	1108
6751 2a48c84f1d04 7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow coleenp parents: 6736 diff changeset	1109 // 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	1110 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	1111 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	1112 if (m == NULL \|\| m->is_static()) {
2a48c84f1d04 7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow coleenp parents: 6736 diff changeset	1113 THROW_MSG_(vmSymbols::java_lang_NoSuchMethodException(),
2a48c84f1d04 7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow coleenp parents: 6736 diff changeset	1114 "java.lang.ClassLoader.addClass", false);
2a48c84f1d04 7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow coleenp parents: 6736 diff changeset	1115 }
2a48c84f1d04 7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow coleenp parents: 6736 diff changeset	1116 Universe::_loader_addClass_cache->init(
2a48c84f1d04 7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow coleenp parents: 6736 diff changeset	1117 SystemDictionary::ClassLoader_klass(), m, CHECK_false);
2a48c84f1d04 7197269: NPG: FollowReferences has no ClassLoader -> Class link to follow coleenp parents: 6736 diff changeset	1118
0 a61af66fc99e Initial load duke parents: diff changeset	1119 // The folowing is initializing converter functions for serialization in
a61af66fc99e Initial load duke parents: diff changeset	1120 // JVM.cpp. If we clean up the StrictMath code above we may want to find
a61af66fc99e Initial load duke parents: diff changeset	1121 // a better solution for this as well.
a61af66fc99e Initial load duke parents: diff changeset	1122 initialize_converter_functions();
a61af66fc99e Initial load duke parents: diff changeset	1123
a61af66fc99e Initial load duke parents: diff changeset	1124 // This needs to be done before the first scavenge/gc, since
a61af66fc99e Initial load duke parents: diff changeset	1125 // it's an input to soft ref clearing policy.
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	1126 {
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	1127 MutexLocker x(Heap_lock);
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	1128 Universe::update_heap_info_at_gc();
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	1129 }
0 a61af66fc99e Initial load duke parents: diff changeset	1130
a61af66fc99e Initial load duke parents: diff changeset	1131 // ("weak") refs processing infrastructure initialization
a61af66fc99e Initial load duke parents: diff changeset	1132 Universe::heap()->post_initialize();
a61af66fc99e Initial load duke parents: diff changeset	1133
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1134 // Initialize performance counters for metaspaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1135 MetaspaceCounters::initialize_performance_counters();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1136
0 a61af66fc99e Initial load duke parents: diff changeset	1137 GC_locker::unlock(); // allow gc after bootstrapping
a61af66fc99e Initial load duke parents: diff changeset	1138
a61af66fc99e Initial load duke parents: diff changeset	1139 MemoryService::set_universe_heap(Universe::_collectedHeap);
a61af66fc99e Initial load duke parents: diff changeset	1140 return true;
a61af66fc99e Initial load duke parents: diff changeset	1141 }
a61af66fc99e Initial load duke parents: diff changeset	1142
a61af66fc99e Initial load duke parents: diff changeset	1143
a61af66fc99e Initial load duke parents: diff changeset	1144 void Universe::compute_base_vtable_size() {
a61af66fc99e Initial load duke parents: diff changeset	1145 _base_vtable_size = ClassLoader::compute_Object_vtable();
a61af66fc99e Initial load duke parents: diff changeset	1146 }
a61af66fc99e Initial load duke parents: diff changeset	1147
a61af66fc99e Initial load duke parents: diff changeset	1148
a61af66fc99e Initial load duke parents: diff changeset	1149 // %%% The Universe::flush_foo methods belong in CodeCache.
a61af66fc99e Initial load duke parents: diff changeset	1150
a61af66fc99e Initial load duke parents: diff changeset	1151 // Flushes compiled methods dependent on dependee.
a61af66fc99e Initial load duke parents: diff changeset	1152 void Universe::flush_dependents_on(instanceKlassHandle dependee) {
a61af66fc99e Initial load duke parents: diff changeset	1153 assert_lock_strong(Compile_lock);
a61af66fc99e Initial load duke parents: diff changeset	1154
a61af66fc99e Initial load duke parents: diff changeset	1155 if (CodeCache::number_of_nmethods_with_dependencies() == 0) return;
a61af66fc99e Initial load duke parents: diff changeset	1156
a61af66fc99e Initial load duke parents: diff changeset	1157 // CodeCache can only be updated by a thread_in_VM and they will all be
a61af66fc99e Initial load duke parents: diff changeset	1158 // stopped dring the safepoint so CodeCache will be safe to update without
a61af66fc99e Initial load duke parents: diff changeset	1159 // holding the CodeCache_lock.
a61af66fc99e Initial load duke parents: diff changeset	1160
3852 fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1161 KlassDepChange changes(dependee);
0 a61af66fc99e Initial load duke parents: diff changeset	1162
a61af66fc99e Initial load duke parents: diff changeset	1163 // Compute the dependent nmethods
a61af66fc99e Initial load duke parents: diff changeset	1164 if (CodeCache::mark_for_deoptimization(changes) > 0) {
a61af66fc99e Initial load duke parents: diff changeset	1165 // At least one nmethod has been marked for deoptimization
a61af66fc99e Initial load duke parents: diff changeset	1166 VM_Deoptimize op;
a61af66fc99e Initial load duke parents: diff changeset	1167 VMThread::execute(&op);
a61af66fc99e Initial load duke parents: diff changeset	1168 }
a61af66fc99e Initial load duke parents: diff changeset	1169 }
a61af66fc99e Initial load duke parents: diff changeset	1170
3852 fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1171 // 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	1172 // 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	1173 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	1174 assert_lock_strong(Compile_lock);
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1175
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1176 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	1177
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1178 // 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	1179 // 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	1180 // holding the CodeCache_lock.
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1181
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1182 CallSiteDepChange changes(call_site(), method_handle());
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 // 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	1185 // 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	1186 // 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	1187 // 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	1188 // the ContextStream.
3852 fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1189 int marked = 0;
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1190 {
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1191 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	1192 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	1193 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	1194 }
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1195 if (marked > 0) {
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1196 // 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	1197 VM_Deoptimize op;
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1198 VMThread::execute(&op);
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1199 }
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1200 }
fdb992d83a87 7071653: JSR 292: call site change notification should be pushed not pulled twisti parents: 3772 diff changeset	1201
0 a61af66fc99e Initial load duke parents: diff changeset	1202 #ifdef HOTSWAP
a61af66fc99e Initial load duke parents: diff changeset	1203 // Flushes compiled methods dependent on dependee in the evolutionary sense
a61af66fc99e Initial load duke parents: diff changeset	1204 void Universe::flush_evol_dependents_on(instanceKlassHandle ev_k_h) {
a61af66fc99e Initial load duke parents: diff changeset	1205 // --- Compile_lock is not held. However we are at a safepoint.
a61af66fc99e Initial load duke parents: diff changeset	1206 assert_locked_or_safepoint(Compile_lock);
a61af66fc99e Initial load duke parents: diff changeset	1207 if (CodeCache::number_of_nmethods_with_dependencies() == 0) return;
a61af66fc99e Initial load duke parents: diff changeset	1208
a61af66fc99e Initial load duke parents: diff changeset	1209 // CodeCache can only be updated by a thread_in_VM and they will all be
a61af66fc99e Initial load duke parents: diff changeset	1210 // stopped dring the safepoint so CodeCache will be safe to update without
a61af66fc99e Initial load duke parents: diff changeset	1211 // holding the CodeCache_lock.
a61af66fc99e Initial load duke parents: diff changeset	1212
a61af66fc99e Initial load duke parents: diff changeset	1213 // Compute the dependent nmethods
a61af66fc99e Initial load duke parents: diff changeset	1214 if (CodeCache::mark_for_evol_deoptimization(ev_k_h) > 0) {
a61af66fc99e Initial load duke parents: diff changeset	1215 // At least one nmethod has been marked for deoptimization
a61af66fc99e Initial load duke parents: diff changeset	1216
a61af66fc99e Initial load duke parents: diff changeset	1217 // All this already happens inside a VM_Operation, so we'll do all the work here.
a61af66fc99e Initial load duke parents: diff changeset	1218 // Stuff copied from VM_Deoptimize and modified slightly.
a61af66fc99e Initial load duke parents: diff changeset	1219
a61af66fc99e Initial load duke parents: diff changeset	1220 // We do not want any GCs to happen while we are in the middle of this VM operation
a61af66fc99e Initial load duke parents: diff changeset	1221 ResourceMark rm;
a61af66fc99e Initial load duke parents: diff changeset	1222 DeoptimizationMarker dm;
a61af66fc99e Initial load duke parents: diff changeset	1223
a61af66fc99e Initial load duke parents: diff changeset	1224 // Deoptimize all activations depending on marked nmethods
a61af66fc99e Initial load duke parents: diff changeset	1225 Deoptimization::deoptimize_dependents();
a61af66fc99e Initial load duke parents: diff changeset	1226
a61af66fc99e Initial load duke parents: diff changeset	1227 // Make the dependent methods not entrant (in VM_Deoptimize they are made zombies)
a61af66fc99e Initial load duke parents: diff changeset	1228 CodeCache::make_marked_nmethods_not_entrant();
a61af66fc99e Initial load duke parents: diff changeset	1229 }
a61af66fc99e Initial load duke parents: diff changeset	1230 }
a61af66fc99e Initial load duke parents: diff changeset	1231 #endif // HOTSWAP
a61af66fc99e Initial load duke parents: diff changeset	1232
a61af66fc99e Initial load duke parents: diff changeset	1233
a61af66fc99e Initial load duke parents: diff changeset	1234 // Flushes compiled methods dependent on dependee
a61af66fc99e Initial load duke parents: diff changeset	1235 void Universe::flush_dependents_on_method(methodHandle m_h) {
a61af66fc99e Initial load duke parents: diff changeset	1236 // --- Compile_lock is not held. However we are at a safepoint.
a61af66fc99e Initial load duke parents: diff changeset	1237 assert_locked_or_safepoint(Compile_lock);
a61af66fc99e Initial load duke parents: diff changeset	1238
a61af66fc99e Initial load duke parents: diff changeset	1239 // CodeCache can only be updated by a thread_in_VM and they will all be
a61af66fc99e Initial load duke parents: diff changeset	1240 // stopped dring the safepoint so CodeCache will be safe to update without
a61af66fc99e Initial load duke parents: diff changeset	1241 // holding the CodeCache_lock.
a61af66fc99e Initial load duke parents: diff changeset	1242
a61af66fc99e Initial load duke parents: diff changeset	1243 // Compute the dependent nmethods
a61af66fc99e Initial load duke parents: diff changeset	1244 if (CodeCache::mark_for_deoptimization(m_h()) > 0) {
a61af66fc99e Initial load duke parents: diff changeset	1245 // At least one nmethod has been marked for deoptimization
a61af66fc99e Initial load duke parents: diff changeset	1246
a61af66fc99e Initial load duke parents: diff changeset	1247 // All this already happens inside a VM_Operation, so we'll do all the work here.
a61af66fc99e Initial load duke parents: diff changeset	1248 // Stuff copied from VM_Deoptimize and modified slightly.
a61af66fc99e Initial load duke parents: diff changeset	1249
a61af66fc99e Initial load duke parents: diff changeset	1250 // We do not want any GCs to happen while we are in the middle of this VM operation
a61af66fc99e Initial load duke parents: diff changeset	1251 ResourceMark rm;
a61af66fc99e Initial load duke parents: diff changeset	1252 DeoptimizationMarker dm;
a61af66fc99e Initial load duke parents: diff changeset	1253
a61af66fc99e Initial load duke parents: diff changeset	1254 // Deoptimize all activations depending on marked nmethods
a61af66fc99e Initial load duke parents: diff changeset	1255 Deoptimization::deoptimize_dependents();
a61af66fc99e Initial load duke parents: diff changeset	1256
a61af66fc99e Initial load duke parents: diff changeset	1257 // Make the dependent methods not entrant (in VM_Deoptimize they are made zombies)
a61af66fc99e Initial load duke parents: diff changeset	1258 CodeCache::make_marked_nmethods_not_entrant();
a61af66fc99e Initial load duke parents: diff changeset	1259 }
a61af66fc99e Initial load duke parents: diff changeset	1260 }
a61af66fc99e Initial load duke parents: diff changeset	1261
4073 53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1262 void Universe::print() {
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1263 print_on(gclog_or_tty);
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1264 }
0 a61af66fc99e Initial load duke parents: diff changeset	1265
4073 53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1266 void Universe::print_on(outputStream* st, bool extended) {
0 a61af66fc99e Initial load duke parents: diff changeset	1267 st->print_cr("Heap");
4073 53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1268 if (!extended) {
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1269 heap()->print_on(st);
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1270 } else {
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1271 heap()->print_extended_on(st);
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1272 }
0 a61af66fc99e Initial load duke parents: diff changeset	1273 }
a61af66fc99e Initial load duke parents: diff changeset	1274
a61af66fc99e Initial load duke parents: diff changeset	1275 void Universe::print_heap_at_SIGBREAK() {
a61af66fc99e Initial load duke parents: diff changeset	1276 if (PrintHeapAtSIGBREAK) {
a61af66fc99e Initial load duke parents: diff changeset	1277 MutexLocker hl(Heap_lock);
a61af66fc99e Initial load duke parents: diff changeset	1278 print_on(tty);
a61af66fc99e Initial load duke parents: diff changeset	1279 tty->cr();
a61af66fc99e Initial load duke parents: diff changeset	1280 tty->flush();
a61af66fc99e Initial load duke parents: diff changeset	1281 }
a61af66fc99e Initial load duke parents: diff changeset	1282 }
a61af66fc99e Initial load duke parents: diff changeset	1283
4944 09d00c18e323 7145537: minor tweaks to LogEvents never parents: 4073 diff changeset	1284 void Universe::print_heap_before_gc(outputStream* st, bool ignore_extended) {
0 a61af66fc99e Initial load duke parents: diff changeset	1285 st->print_cr("{Heap before GC invocations=%u (full %u):",
a61af66fc99e Initial load duke parents: diff changeset	1286 heap()->total_collections(),
a61af66fc99e Initial load duke parents: diff changeset	1287 heap()->total_full_collections());
4944 09d00c18e323 7145537: minor tweaks to LogEvents never parents: 4073 diff changeset	1288 if (!PrintHeapAtGCExtended \|\| ignore_extended) {
4073 53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1289 heap()->print_on(st);
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1290 } else {
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1291 heap()->print_extended_on(st);
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1292 }
0 a61af66fc99e Initial load duke parents: diff changeset	1293 }
a61af66fc99e Initial load duke parents: diff changeset	1294
4944 09d00c18e323 7145537: minor tweaks to LogEvents never parents: 4073 diff changeset	1295 void Universe::print_heap_after_gc(outputStream* st, bool ignore_extended) {
0 a61af66fc99e Initial load duke parents: diff changeset	1296 st->print_cr("Heap after GC invocations=%u (full %u):",
a61af66fc99e Initial load duke parents: diff changeset	1297 heap()->total_collections(),
a61af66fc99e Initial load duke parents: diff changeset	1298 heap()->total_full_collections());
4944 09d00c18e323 7145537: minor tweaks to LogEvents never parents: 4073 diff changeset	1299 if (!PrintHeapAtGCExtended \|\| ignore_extended) {
4073 53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1300 heap()->print_on(st);
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1301 } else {
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1302 heap()->print_extended_on(st);
53074c2c4600 7099849: G1: include heap region information in hs_err files tonyp parents: 4013 diff changeset	1303 }
0 a61af66fc99e Initial load duke parents: diff changeset	1304 st->print_cr("}");
a61af66fc99e Initial load duke parents: diff changeset	1305 }
a61af66fc99e Initial load duke parents: diff changeset	1306
10186 b06ac540229e 8013132: Add a flag to turn off the output of the verbose verification code stefank parents: 9062 diff changeset	1307 void Universe::verify(VerifyOption option, const char* prefix, bool silent) {
0 a61af66fc99e Initial load duke parents: diff changeset	1308 // The use of _verify_in_progress is a temporary work around for
a61af66fc99e Initial load duke parents: diff changeset	1309 // 6320749. Don't bother with a creating a class to set and clear
a61af66fc99e Initial load duke parents: diff changeset	1310 // it since it is only used in this method and the control flow is
a61af66fc99e Initial load duke parents: diff changeset	1311 // straight forward.
a61af66fc99e Initial load duke parents: diff changeset	1312 _verify_in_progress = true;
a61af66fc99e Initial load duke parents: diff changeset	1313
a61af66fc99e Initial load duke parents: diff changeset	1314 COMPILER2_PRESENT(
a61af66fc99e Initial load duke parents: diff changeset	1315 assert(!DerivedPointerTable::is_active(),
a61af66fc99e Initial load duke parents: diff changeset	1316 "DPT should not be active during verification "
a61af66fc99e Initial load duke parents: diff changeset	1317 "(of thread stacks below)");
a61af66fc99e Initial load duke parents: diff changeset	1318 )
a61af66fc99e Initial load duke parents: diff changeset	1319
a61af66fc99e Initial load duke parents: diff changeset	1320 ResourceMark rm;
a61af66fc99e Initial load duke parents: diff changeset	1321 HandleMark hm; // Handles created during verification can be zapped
a61af66fc99e Initial load duke parents: diff changeset	1322 _verify_count++;
a61af66fc99e Initial load duke parents: diff changeset	1323
10186 b06ac540229e 8013132: Add a flag to turn off the output of the verbose verification code stefank parents: 9062 diff changeset	1324 if (!silent) gclog_or_tty->print(prefix);
0 a61af66fc99e Initial load duke parents: diff changeset	1325 if (!silent) gclog_or_tty->print("[Verifying ");
a61af66fc99e Initial load duke parents: diff changeset	1326 if (!silent) gclog_or_tty->print("threads ");
a61af66fc99e Initial load duke parents: diff changeset	1327 Threads::verify();
10186 b06ac540229e 8013132: Add a flag to turn off the output of the verbose verification code stefank parents: 9062 diff changeset	1328 if (!silent) gclog_or_tty->print("heap ");
6008 b632e80fc9dc 4988100: oop_verify_old_oop appears to be dead brutisso parents: 4944 diff changeset	1329 heap()->verify(silent, option);
0 a61af66fc99e Initial load duke parents: diff changeset	1330 if (!silent) gclog_or_tty->print("syms ");
a61af66fc99e Initial load duke parents: diff changeset	1331 SymbolTable::verify();
a61af66fc99e Initial load duke parents: diff changeset	1332 if (!silent) gclog_or_tty->print("strs ");
a61af66fc99e Initial load duke parents: diff changeset	1333 StringTable::verify();
a61af66fc99e Initial load duke parents: diff changeset	1334 {
a61af66fc99e Initial load duke parents: diff changeset	1335 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
a61af66fc99e Initial load duke parents: diff changeset	1336 if (!silent) gclog_or_tty->print("zone ");
a61af66fc99e Initial load duke parents: diff changeset	1337 CodeCache::verify();
a61af66fc99e Initial load duke parents: diff changeset	1338 }
a61af66fc99e Initial load duke parents: diff changeset	1339 if (!silent) gclog_or_tty->print("dict ");
a61af66fc99e Initial load duke parents: diff changeset	1340 SystemDictionary::verify();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1341 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1342 if (!silent) gclog_or_tty->print("cldg ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1343 ClassLoaderDataGraph::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1344 #endif
6969 6bc207d87e5d 7200229: NPG: possible performance issue exposed by closed/runtime/6559877/Test6559877.java mgerdin parents: 6870 diff changeset	1345 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	1346 MetaspaceAux::verify_free_chunks();
0 a61af66fc99e Initial load duke parents: diff changeset	1347 if (!silent) gclog_or_tty->print("hand ");
a61af66fc99e Initial load duke parents: diff changeset	1348 JNIHandles::verify();
a61af66fc99e Initial load duke parents: diff changeset	1349 if (!silent) gclog_or_tty->print("C-heap ");
a61af66fc99e Initial load duke parents: diff changeset	1350 os::check_heap();
2375 d673ef06fe96 7028374: race in fix_oop_relocations for scavengeable nmethods never parents: 2177 diff changeset	1351 if (!silent) gclog_or_tty->print("code cache ");
d673ef06fe96 7028374: race in fix_oop_relocations for scavengeable nmethods never parents: 2177 diff changeset	1352 CodeCache::verify_oops();
0 a61af66fc99e Initial load duke parents: diff changeset	1353 if (!silent) gclog_or_tty->print_cr("]");
a61af66fc99e Initial load duke parents: diff changeset	1354
a61af66fc99e Initial load duke parents: diff changeset	1355 _verify_in_progress = false;
a61af66fc99e Initial load duke parents: diff changeset	1356 }
a61af66fc99e Initial load duke parents: diff changeset	1357
a61af66fc99e Initial load duke parents: diff changeset	1358 // Oop verification (see MacroAssembler::verify_oop)
a61af66fc99e Initial load duke parents: diff changeset	1359
a61af66fc99e Initial load duke parents: diff changeset	1360 static uintptr_t _verify_oop_data[2] = {0, (uintptr_t)-1};
a61af66fc99e Initial load duke parents: diff changeset	1361 static uintptr_t _verify_klass_data[2] = {0, (uintptr_t)-1};
a61af66fc99e Initial load duke parents: diff changeset	1362
a61af66fc99e Initial load duke parents: diff changeset	1363
9060 cc32ccaaf47f 8003310: Enable -Wunused-function when compiling with gcc mikael parents: 8827 diff changeset	1364 #ifndef PRODUCT
cc32ccaaf47f 8003310: Enable -Wunused-function when compiling with gcc mikael parents: 8827 diff changeset	1365
0 a61af66fc99e Initial load duke parents: diff changeset	1366 static void calculate_verify_data(uintptr_t verify_data[2],
a61af66fc99e Initial load duke parents: diff changeset	1367 HeapWord* low_boundary,
a61af66fc99e Initial load duke parents: diff changeset	1368 HeapWord* high_boundary) {
a61af66fc99e Initial load duke parents: diff changeset	1369 assert(low_boundary < high_boundary, "bad interval");
a61af66fc99e Initial load duke parents: diff changeset	1370
a61af66fc99e Initial load duke parents: diff changeset	1371 // decide which low-order bits we require to be clear:
a61af66fc99e Initial load duke parents: diff changeset	1372 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	1373 size_t min_object_size = CollectedHeap::min_fill_size();
0 a61af66fc99e Initial load duke parents: diff changeset	1374
a61af66fc99e Initial load duke parents: diff changeset	1375 // make an inclusive limit:
a61af66fc99e Initial load duke parents: diff changeset	1376 uintptr_t max = (uintptr_t)high_boundary - min_object_size*wordSize;
a61af66fc99e Initial load duke parents: diff changeset	1377 uintptr_t min = (uintptr_t)low_boundary;
a61af66fc99e Initial load duke parents: diff changeset	1378 assert(min < max, "bad interval");
a61af66fc99e Initial load duke parents: diff changeset	1379 uintptr_t diff = max ^ min;
a61af66fc99e Initial load duke parents: diff changeset	1380
a61af66fc99e Initial load duke parents: diff changeset	1381 // throw away enough low-order bits to make the diff vanish
a61af66fc99e Initial load duke parents: diff changeset	1382 uintptr_t mask = (uintptr_t)(-1);
a61af66fc99e Initial load duke parents: diff changeset	1383 while ((mask & diff) != 0)
a61af66fc99e Initial load duke parents: diff changeset	1384 mask <<= 1;
a61af66fc99e Initial load duke parents: diff changeset	1385 uintptr_t bits = (min & mask);
a61af66fc99e Initial load duke parents: diff changeset	1386 assert(bits == (max & mask), "correct mask");
a61af66fc99e Initial load duke parents: diff changeset	1387 // check an intermediate value between min and max, just to make sure:
a61af66fc99e Initial load duke parents: diff changeset	1388 assert(bits == ((min + (max-min)/2) & mask), "correct mask");
a61af66fc99e Initial load duke parents: diff changeset	1389
a61af66fc99e Initial load duke parents: diff changeset	1390 // require address alignment, too:
a61af66fc99e Initial load duke parents: diff changeset	1391 mask \|= (alignSize - 1);
a61af66fc99e Initial load duke parents: diff changeset	1392
a61af66fc99e Initial load duke parents: diff changeset	1393 if (!(verify_data[0] == 0 && verify_data[1] == (uintptr_t)-1)) {
a61af66fc99e Initial load duke parents: diff changeset	1394 assert(verify_data[0] == mask && verify_data[1] == bits, "mask stability");
a61af66fc99e Initial load duke parents: diff changeset	1395 }
a61af66fc99e Initial load duke parents: diff changeset	1396 verify_data[0] = mask;
a61af66fc99e Initial load duke parents: diff changeset	1397 verify_data[1] = bits;
a61af66fc99e Initial load duke parents: diff changeset	1398 }
a61af66fc99e Initial load duke parents: diff changeset	1399
a61af66fc99e Initial load duke parents: diff changeset	1400 // Oop verification (see MacroAssembler::verify_oop)
a61af66fc99e Initial load duke parents: diff changeset	1401
a61af66fc99e Initial load duke parents: diff changeset	1402 uintptr_t Universe::verify_oop_mask() {
a61af66fc99e Initial load duke parents: diff changeset	1403 MemRegion m = heap()->reserved_region();
a61af66fc99e Initial load duke parents: diff changeset	1404 calculate_verify_data(_verify_oop_data,
a61af66fc99e Initial load duke parents: diff changeset	1405 m.start(),
a61af66fc99e Initial load duke parents: diff changeset	1406 m.end());
a61af66fc99e Initial load duke parents: diff changeset	1407 return _verify_oop_data[0];
a61af66fc99e Initial load duke parents: diff changeset	1408 }
a61af66fc99e Initial load duke parents: diff changeset	1409
a61af66fc99e Initial load duke parents: diff changeset	1410
a61af66fc99e Initial load duke parents: diff changeset	1411
a61af66fc99e Initial load duke parents: diff changeset	1412 uintptr_t Universe::verify_oop_bits() {
a61af66fc99e Initial load duke parents: diff changeset	1413 verify_oop_mask();
a61af66fc99e Initial load duke parents: diff changeset	1414 return _verify_oop_data[1];
a61af66fc99e Initial load duke parents: diff changeset	1415 }
a61af66fc99e Initial load duke parents: diff changeset	1416
a61af66fc99e Initial load duke parents: diff changeset	1417 uintptr_t Universe::verify_mark_mask() {
a61af66fc99e Initial load duke parents: diff changeset	1418 return markOopDesc::lock_mask_in_place;
a61af66fc99e Initial load duke parents: diff changeset	1419 }
a61af66fc99e Initial load duke parents: diff changeset	1420
a61af66fc99e Initial load duke parents: diff changeset	1421 uintptr_t Universe::verify_mark_bits() {
a61af66fc99e Initial load duke parents: diff changeset	1422 intptr_t mask = verify_mark_mask();
a61af66fc99e Initial load duke parents: diff changeset	1423 intptr_t bits = (intptr_t)markOopDesc::prototype();
a61af66fc99e Initial load duke parents: diff changeset	1424 assert((bits & ~mask) == 0, "no stray header bits");
a61af66fc99e Initial load duke parents: diff changeset	1425 return bits;
a61af66fc99e Initial load duke parents: diff changeset	1426 }
a61af66fc99e Initial load duke parents: diff changeset	1427 #endif // PRODUCT
a61af66fc99e Initial load duke parents: diff changeset	1428
a61af66fc99e Initial load duke parents: diff changeset	1429
a61af66fc99e Initial load duke parents: diff changeset	1430 void Universe::compute_verify_oop_data() {
a61af66fc99e Initial load duke parents: diff changeset	1431 verify_oop_mask();
a61af66fc99e Initial load duke parents: diff changeset	1432 verify_oop_bits();
a61af66fc99e Initial load duke parents: diff changeset	1433 verify_mark_mask();
a61af66fc99e Initial load duke parents: diff changeset	1434 verify_mark_bits();
a61af66fc99e Initial load duke parents: diff changeset	1435 }
a61af66fc99e Initial load duke parents: diff changeset	1436
a61af66fc99e Initial load duke parents: diff changeset	1437
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1438 void CommonMethodOopCache::init(Klass* k, Method* m, TRAPS) {
0 a61af66fc99e Initial load duke parents: diff changeset	1439 if (!UseSharedSpaces) {
a61af66fc99e Initial load duke parents: diff changeset	1440 _klass = k;
a61af66fc99e Initial load duke parents: diff changeset	1441 }
a61af66fc99e Initial load duke parents: diff changeset	1442 #ifndef PRODUCT
a61af66fc99e Initial load duke parents: diff changeset	1443 else {
a61af66fc99e Initial load duke parents: diff changeset	1444 // sharing initilization should have already set up _klass
a61af66fc99e Initial load duke parents: diff changeset	1445 assert(_klass != NULL, "just checking");
a61af66fc99e Initial load duke parents: diff changeset	1446 }
a61af66fc99e Initial load duke parents: diff changeset	1447 #endif
a61af66fc99e Initial load duke parents: diff changeset	1448
a61af66fc99e Initial load duke parents: diff changeset	1449 _method_idnum = m->method_idnum();
a61af66fc99e Initial load duke parents: diff changeset	1450 assert(_method_idnum >= 0, "sanity check");
a61af66fc99e Initial load duke parents: diff changeset	1451 }
a61af66fc99e Initial load duke parents: diff changeset	1452
a61af66fc99e Initial load duke parents: diff changeset	1453
a61af66fc99e Initial load duke parents: diff changeset	1454 ActiveMethodOopsCache::~ActiveMethodOopsCache() {
a61af66fc99e Initial load duke parents: diff changeset	1455 if (_prev_methods != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	1456 delete _prev_methods;
a61af66fc99e Initial load duke parents: diff changeset	1457 _prev_methods = NULL;
a61af66fc99e Initial load duke parents: diff changeset	1458 }
a61af66fc99e Initial load duke parents: diff changeset	1459 }
a61af66fc99e Initial load duke parents: diff changeset	1460
a61af66fc99e Initial load duke parents: diff changeset	1461
10265 92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1462 void ActiveMethodOopsCache::add_previous_version(Method* method) {
0 a61af66fc99e Initial load duke parents: diff changeset	1463 assert(Thread::current()->is_VM_thread(),
a61af66fc99e Initial load duke parents: diff changeset	1464 "only VMThread can add previous versions");
a61af66fc99e Initial load duke parents: diff changeset	1465
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1466 // 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	1467 if (method->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1468
10265 92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1469 if (_prev_methods == NULL) {
92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1470 // 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	1471 // 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	1472 // won't be redefined much.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1473 _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	1474 }
0 a61af66fc99e Initial load duke parents: diff changeset	1475
10265 92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1476 // RC_TRACE macro has an embedded ResourceMark
92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1477 RC_TRACE(0x00000100,
92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1478 ("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	1479 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	1480 _prev_methods->length()));
0 a61af66fc99e Initial load duke parents: diff changeset	1481
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1482 _prev_methods->append(method);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1483 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1484
0 a61af66fc99e Initial load duke parents: diff changeset	1485
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1486 // 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	1487 // time to clear out unused method references.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1488
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1489 if (_prev_methods == NULL) return;
0 a61af66fc99e Initial load duke parents: diff changeset	1490
a61af66fc99e Initial load duke parents: diff changeset	1491 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	1492 Method* method = _prev_methods->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1493 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	1494
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1495 if (!method->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1496 // This method isn't running anymore so remove it
0 a61af66fc99e Initial load duke parents: diff changeset	1497 _prev_methods->remove_at(i);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1498 MetadataFactory::free_metadata(method->method_holder()->class_loader_data(), method);
0 a61af66fc99e Initial load duke parents: diff changeset	1499 } else {
a61af66fc99e Initial load duke parents: diff changeset	1500 // RC_TRACE macro has an embedded ResourceMark
10265 92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1501 RC_TRACE(0x00000400,
92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1502 ("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	1503 method->name()->as_C_string(), method->signature()->as_C_string(), i));
0 a61af66fc99e Initial load duke parents: diff changeset	1504 }
a61af66fc99e Initial load duke parents: diff changeset	1505 }
a61af66fc99e Initial load duke parents: diff changeset	1506 } // end add_previous_version()
a61af66fc99e Initial load duke parents: diff changeset	1507
a61af66fc99e Initial load duke parents: diff changeset	1508
10265 92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1509 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	1510 InstanceKlass* ik = InstanceKlass::cast(klass());
10265 92ef81e2f571 8003557: NPG: Klass* const k should be const Klass* k. minqi parents: 10186 diff changeset	1511 const Method* check_method = ik->method_with_idnum(method_idnum());
0 a61af66fc99e Initial load duke parents: diff changeset	1512 assert(check_method != NULL, "sanity check");
a61af66fc99e Initial load duke parents: diff changeset	1513 if (check_method == method) {
a61af66fc99e Initial load duke parents: diff changeset	1514 // done with the easy case
a61af66fc99e Initial load duke parents: diff changeset	1515 return true;
a61af66fc99e Initial load duke parents: diff changeset	1516 }
a61af66fc99e Initial load duke parents: diff changeset	1517
a61af66fc99e Initial load duke parents: diff changeset	1518 if (_prev_methods != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	1519 // The cached method has been redefined at least once so search
a61af66fc99e Initial load duke parents: diff changeset	1520 // the previous versions for a match.
a61af66fc99e Initial load duke parents: diff changeset	1521 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	1522 check_method = _prev_methods->at(i);
0 a61af66fc99e Initial load duke parents: diff changeset	1523 if (check_method == method) {
a61af66fc99e Initial load duke parents: diff changeset	1524 // a previous version matches
a61af66fc99e Initial load duke parents: diff changeset	1525 return true;
a61af66fc99e Initial load duke parents: diff changeset	1526 }
a61af66fc99e Initial load duke parents: diff changeset	1527 }
a61af66fc99e Initial load duke parents: diff changeset	1528 }
a61af66fc99e Initial load duke parents: diff changeset	1529
a61af66fc99e Initial load duke parents: diff changeset	1530 // either no previous versions or no previous version matched
a61af66fc99e Initial load duke parents: diff changeset	1531 return false;
a61af66fc99e Initial load duke parents: diff changeset	1532 }
a61af66fc99e Initial load duke parents: diff changeset	1533
a61af66fc99e Initial load duke parents: diff changeset	1534
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1535 Method* LatestMethodOopCache::get_Method() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1536 InstanceKlass* ik = InstanceKlass::cast(klass());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6197 diff changeset	1537 Method* m = ik->method_with_idnum(method_idnum());
0 a61af66fc99e Initial load duke parents: diff changeset	1538 assert(m != NULL, "sanity check");
a61af66fc99e Initial load duke parents: diff changeset	1539 return m;
a61af66fc99e Initial load duke parents: diff changeset	1540 }
a61af66fc99e Initial load duke parents: diff changeset	1541
a61af66fc99e Initial load duke parents: diff changeset	1542
a61af66fc99e Initial load duke parents: diff changeset	1543 #ifdef ASSERT
a61af66fc99e Initial load duke parents: diff changeset	1544 // Release dummy object(s) at bottom of heap
a61af66fc99e Initial load duke parents: diff changeset	1545 bool Universe::release_fullgc_alot_dummy() {
a61af66fc99e Initial load duke parents: diff changeset	1546 MutexLocker ml(FullGCALot_lock);
a61af66fc99e Initial load duke parents: diff changeset	1547 if (_fullgc_alot_dummy_array != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	1548 if (_fullgc_alot_dummy_next >= _fullgc_alot_dummy_array->length()) {
a61af66fc99e Initial load duke parents: diff changeset	1549 // No more dummies to release, release entire array instead
a61af66fc99e Initial load duke parents: diff changeset	1550 _fullgc_alot_dummy_array = NULL;
a61af66fc99e Initial load duke parents: diff changeset	1551 return false;
a61af66fc99e Initial load duke parents: diff changeset	1552 }
a61af66fc99e Initial load duke parents: diff changeset	1553 if (!UseConcMarkSweepGC) {
a61af66fc99e Initial load duke parents: diff changeset	1554 // Release dummy at bottom of old generation
a61af66fc99e Initial load duke parents: diff changeset	1555 _fullgc_alot_dummy_array->obj_at_put(_fullgc_alot_dummy_next++, NULL);
a61af66fc99e Initial load duke parents: diff changeset	1556 }
a61af66fc99e Initial load duke parents: diff changeset	1557 // Release dummy at bottom of permanent generation
a61af66fc99e Initial load duke parents: diff changeset	1558 _fullgc_alot_dummy_array->obj_at_put(_fullgc_alot_dummy_next++, NULL);
a61af66fc99e Initial load duke parents: diff changeset	1559 }
a61af66fc99e Initial load duke parents: diff changeset	1560 return true;
a61af66fc99e Initial load duke parents: diff changeset	1561 }
a61af66fc99e Initial load duke parents: diff changeset	1562
a61af66fc99e Initial load duke parents: diff changeset	1563 #endif // ASSERT

Mercurial > hg > truffle

annotate src/share/vm/memory/universe.cpp @ 11064:de2d15ce3d4a