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

annotate src/share/vm/memory/metaspaceShared.cpp @ 20730:8210e5f2e21b

8044269: Analysis of archive files. Summary: Add checksum verification. Reviewed-by: iklam, dholmes, mschoene

author	jiangli
date	Tue, 12 Aug 2014 17:46:16 -0400
parents	78bbf4d43a14
children	eaf39a954227 8cb56c8cb30d

rev	line source
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1 /*
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	4 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	7 * published by the Free Software Foundation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	8 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	13 * accompanied this code).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	14 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	18 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	21 * questions.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	22 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	23 */
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	24
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	25 #include "precompiled.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	26 #include "classfile/dictionary.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	27 #include "classfile/loaderConstraints.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	28 #include "classfile/placeholders.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	29 #include "classfile/symbolTable.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	30 #include "classfile/systemDictionary.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	31 #include "code/codeCache.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	32 #include "memory/filemap.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	33 #include "memory/gcLocker.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	34 #include "memory/metaspace.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	35 #include "memory/metaspaceShared.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	36 #include "oops/objArrayOop.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	37 #include "oops/oop.inline.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	38 #include "runtime/signature.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	39 #include "runtime/vm_operations.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	40 #include "runtime/vmThread.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	41 #include "utilities/hashtable.inline.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	42
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	43 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	44
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	45 int MetaspaceShared::_max_alignment = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	46
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	47 ReservedSpace* MetaspaceShared::_shared_rs = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	48
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	49 // Read/write a data stream for restoring/preserving metadata pointers and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	50 // miscellaneous data from/to the shared archive file.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	51
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	52 void MetaspaceShared::serialize(SerializeClosure* soc) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	53 int tag = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	54 soc->do_tag(--tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	55
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	56 // Verify the sizes of various metadata in the system.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	57 soc->do_tag(sizeof(Method));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	58 soc->do_tag(sizeof(ConstMethod));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	59 soc->do_tag(arrayOopDesc::base_offset_in_bytes(T_BYTE));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	60 soc->do_tag(sizeof(ConstantPool));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	61 soc->do_tag(sizeof(ConstantPoolCache));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	62 soc->do_tag(objArrayOopDesc::base_offset_in_bytes());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	63 soc->do_tag(typeArrayOopDesc::base_offset_in_bytes(T_BYTE));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	64 soc->do_tag(sizeof(Symbol));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	65
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	66 // Dump/restore miscellaneous metadata.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	67 Universe::serialize(soc, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	68 soc->do_tag(--tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	69
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	70 // Dump/restore references to commonly used names and signatures.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	71 vmSymbols::serialize(soc);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	72 soc->do_tag(--tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	73
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	74 soc->do_tag(666);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	75 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	76
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	77
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	78 // CDS code for dumping shared archive.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	79
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	80 // Global object for holding classes that have been loaded. Since this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	81 // is run at a safepoint just before exit, this is the entire set of classes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	82 static GrowableArray<Klass> _global_klass_objects;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	83 static void collect_classes(Klass* k) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	84 _global_klass_objects->append_if_missing(k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	85 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	86 // Add in the array classes too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	87 InstanceKlass* ik = InstanceKlass::cast(k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	88 ik->array_klasses_do(collect_classes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	89 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	90 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	91
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	92 static void remove_unshareable_in_classes() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	93 for (int i = 0; i < _global_klass_objects->length(); i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	94 Klass* k = _global_klass_objects->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	95 k->remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	96 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	97 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	98
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	99 // Walk all methods in the class list and assign a fingerprint.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	100 // so that this part of the ConstMethod* is read only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	101 static void calculate_fingerprints() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	102 for (int i = 0; i < _global_klass_objects->length(); i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	103 Klass* k = _global_klass_objects->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	104 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	105 InstanceKlass* ik = InstanceKlass::cast(k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	106 for (int i = 0; i < ik->methods()->length(); i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	107 Method* m = ik->methods()->at(i);
12281 4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously coleenp parents: 12056 diff changeset	108 Fingerprinter fp(m);
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously coleenp parents: 12056 diff changeset	109 // The side effect of this call sets method's fingerprint field.
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously coleenp parents: 12056 diff changeset	110 fp.fingerprint();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	111 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	112 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	113 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	114 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 // Patch C++ vtable pointer in metadata.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	117
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	118 // Klass and other metadata objects contain references to c++ vtables in the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	119 // JVM library.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	120 // Fix them to point to our constructed vtables. However, don't iterate
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	121 // across the space while doing this, as that causes the vtables to be
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	122 // patched, undoing our useful work. Instead, iterate to make a list,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	123 // then use the list to do the fixing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	124 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	125 // Our constructed vtables:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	126 // Dump time:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	127 // 1. init_self_patching_vtbl_list: table of pointers to current virtual method addrs
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	128 // 2. generate_vtable_methods: create jump table, appended to above vtbl_list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	129 // 3. patch_klass_vtables: for Klass list, patch the vtable entry in klass and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	130 // associated metadata to point to jump table rather than to current vtbl
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	131 // Table layout: NOTE FIXED SIZE
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	132 // 1. vtbl pointers
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	133 // 2. #Klass X #virtual methods per Klass
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	134 // 1 entry for each, in the order:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	135 // Klass1:method1 entry, Klass1:method2 entry, ... Klass1:method<num_virtuals> entry
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	136 // Klass2:method1 entry, Klass2:method2 entry, ... Klass2:method<num_virtuals> entry
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	137 // ...
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	138 // Klass<vtbl_list_size>:method1 entry, Klass<vtbl_list_size>:method2 entry,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	139 // ... Klass<vtbl_list_size>:method<num_virtuals> entry
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	140 // Sample entry: (Sparc):
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	141 // save(sp, -256, sp)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	142 // ba,pt common_code
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	143 // mov XXX, %L0 %L0 gets: Klass index <<8 + method index (note: max method index 255)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	144 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	145 // Restore time:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	146 // 1. initialize_shared_space: reserve space for table
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	147 // 2. init_self_patching_vtbl_list: update pointers to NEW virtual method addrs in text
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	148 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	149 // Execution time:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	150 // First virtual method call for any object of these metadata types:
6733 fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type coleenp parents: 6725 diff changeset	151 // 1. object->klass
fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type coleenp parents: 6725 diff changeset	152 // 2. vtable entry for that klass points to the jump table entries
fa6e618671d7 7195867: NPG: SAJDI tests fail with sun.jvm.hotspot.types.WrongTypeException: No suitable match for type coleenp parents: 6725 diff changeset	153 // 3. branches to common_code with %O0/klass, %L0: Klass index <<8 + method index
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	154 // 4. common_code:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	155 // Get address of new vtbl pointer for this Klass from updated table
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	156 // Update new vtbl pointer in the Klass: future virtual calls go direct
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	157 // Jump to method, using new vtbl pointer and method index
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	158
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	159
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	160 static void* find_matching_vtbl_ptr(void** vtbl_list, void* new_vtable_start, void* obj) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	161 void* old_vtbl_ptr = (void*)obj;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	162 for (int i = 0; i < MetaspaceShared::vtbl_list_size; i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	163 if (vtbl_list[i] == old_vtbl_ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	164 return (void*)new_vtable_start + i MetaspaceShared::num_virtuals;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	165 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	166 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	167 ShouldNotReachHere();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	168 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	169 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	170
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	171 // Assumes the vtable is in first slot in object.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	172 static void patch_klass_vtables(void** vtbl_list, void* new_vtable_start) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	173 int n = _global_klass_objects->length();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	174 for (int i = 0; i < n; i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	175 Klass* obj = _global_klass_objects->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	176 // Note oop_is_instance() is a virtual call. After patching vtables
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	177 // all virtual calls on the dummy vtables will restore the original!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	178 if (obj->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	179 InstanceKlass* ik = InstanceKlass::cast(obj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	180 (void*)ik = find_matching_vtbl_ptr(vtbl_list, new_vtable_start, ik);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	181 ConstantPool* cp = ik->constants();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	182 (void*)cp = find_matching_vtbl_ptr(vtbl_list, new_vtable_start, cp);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	183 for (int j = 0; j < ik->methods()->length(); j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	184 Method* m = ik->methods()->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	185 (void*)m = find_matching_vtbl_ptr(vtbl_list, new_vtable_start, m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	186 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	187 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	188 // Array klasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	189 Klass* k = obj;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	190 (void*)k = find_matching_vtbl_ptr(vtbl_list, new_vtable_start, k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	191 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	192 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	193 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	194
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	195 // Closure for serializing initialization data out to a data area to be
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	196 // written to the shared file.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	197
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	198 class WriteClosure : public SerializeClosure {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	199 private:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	200 intptr_t* top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	201 char* end;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	202
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	203 inline void check_space() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	204 if ((char*)top + sizeof(intptr_t) > end) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	205 report_out_of_shared_space(SharedMiscData);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	206 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	207 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	208
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	209 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	210 WriteClosure(char* md_top, char* md_end) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	211 top = (intptr_t*)md_top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	212 end = md_end;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	213 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	214
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	215 char* get_top() { return (char*)top; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	216
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	217 void do_ptr(void** p) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	218 check_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	219 top = (intptr_t)p;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	220 ++top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	221 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	222
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	223 void do_tag(int tag) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	224 check_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	225 *top = (intptr_t)tag;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	226 ++top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	227 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	228
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	229 void do_region(u_char* start, size_t size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	230 if ((char*)top + size > end) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	231 report_out_of_shared_space(SharedMiscData);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	232 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	233 assert((intptr_t)start % sizeof(intptr_t) == 0, "bad alignment");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	234 assert(size % sizeof(intptr_t) == 0, "bad size");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	235 do_tag((int)size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	236 while (size > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	237 top = (intptr_t*)start;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	238 ++top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	239 start += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	240 size -= sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	241 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	242 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	243
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	244 bool reading() const { return false; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	245 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	246
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	247 // This is for dumping detailed statistics for the allocations
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	248 // in the shared spaces.
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	249 class DumpAllocClosure : public Metaspace::AllocRecordClosure {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	250 public:
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	251
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	252 // Here's poor man's enum inheritance
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	253 #define SHAREDSPACE_OBJ_TYPES_DO(f) \
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	254 METASPACE_OBJ_TYPES_DO(f) \
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	255 f(SymbolHashentry) \
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	256 f(SymbolBuckets) \
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	257 f(Other)
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	258
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	259 #define SHAREDSPACE_OBJ_TYPE_DECLARE(name) name ## Type,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	260 #define SHAREDSPACE_OBJ_TYPE_NAME_CASE(name) case name ## Type: return #name;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	261
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	262 enum Type {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	263 // Types are MetaspaceObj::ClassType, MetaspaceObj::SymbolType, etc
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	264 SHAREDSPACE_OBJ_TYPES_DO(SHAREDSPACE_OBJ_TYPE_DECLARE)
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	265 _number_of_types
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	266 };
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	267
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	268 static const char * type_name(Type type) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	269 switch(type) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	270 SHAREDSPACE_OBJ_TYPES_DO(SHAREDSPACE_OBJ_TYPE_NAME_CASE)
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	271 default:
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	272 ShouldNotReachHere();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	273 return NULL;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	274 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	275 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	276
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	277 public:
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	278 enum {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	279 RO = 0,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	280 RW = 1
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	281 };
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	282
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	283 int _counts[2][_number_of_types];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	284 int _bytes [2][_number_of_types];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	285 int _which;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	286
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	287 DumpAllocClosure() {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	288 memset(_counts, 0, sizeof(_counts));
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	289 memset(_bytes, 0, sizeof(_bytes));
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	290 };
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	291
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	292 void iterate_metaspace(Metaspace* space, int which) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	293 assert(which == RO \|\| which == RW, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	294 _which = which;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	295 space->iterate(this);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	296 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	297
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	298 virtual void doit(address ptr, MetaspaceObj::Type type, int byte_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	299 assert(int(type) >= 0 && type < MetaspaceObj::_number_of_types, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	300 _counts[_which][type] ++;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	301 _bytes [_which][type] += byte_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	302 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	303
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	304 void dump_stats(int ro_all, int rw_all, int md_all, int mc_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	305 };
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	306
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	307 void DumpAllocClosure::dump_stats(int ro_all, int rw_all, int md_all, int mc_all) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	308 rw_all += (md_all + mc_all); // md and mc are all mapped Read/Write
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	309 int other_bytes = md_all + mc_all;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	310
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	311 // Calculate size of data that was not allocated by Metaspace::allocate()
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	312 int symbol_count = _counts[RO][MetaspaceObj::SymbolType];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	313 int symhash_bytes = symbol_count * sizeof (HashtableEntry<Symbol*, mtSymbol>);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	314 int symbuck_count = SymbolTable::the_table()->table_size();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	315 int symbuck_bytes = symbuck_count * sizeof(HashtableBucket<mtSymbol>);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	316
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	317 _counts[RW][SymbolHashentryType] = symbol_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	318 _bytes [RW][SymbolHashentryType] = symhash_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	319 other_bytes -= symhash_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	320
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	321 _counts[RW][SymbolBucketsType] = symbuck_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	322 _bytes [RW][SymbolBucketsType] = symbuck_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	323 other_bytes -= symbuck_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	324
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	325 // TODO: count things like dictionary, vtable, etc
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	326 _bytes[RW][OtherType] = other_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	327
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	328 // prevent divide-by-zero
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	329 if (ro_all < 1) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	330 ro_all = 1;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	331 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	332 if (rw_all < 1) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	333 rw_all = 1;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	334 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	335
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	336 int all_ro_count = 0;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	337 int all_ro_bytes = 0;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	338 int all_rw_count = 0;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	339 int all_rw_bytes = 0;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	340
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	341 // To make fmt_stats be a syntactic constant (for format warnings), use #define.
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	342 #define fmt_stats "%-20s: %8d %10d %5.1f \| %8d %10d %5.1f \| %8d %10d %5.1f"
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	343 const char *sep = "--------------------+---------------------------+---------------------------+--------------------------";
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	344 const char *hdr = " ro_cnt ro_bytes % \| rw_cnt rw_bytes % \| all_cnt all_bytes %";
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	345
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	346 tty->print_cr("Detailed metadata info (rw includes md and mc):");
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	347 tty->print_cr("%s", hdr);
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	348 tty->print_cr("%s", sep);
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	349 for (int type = 0; type < int(_number_of_types); type ++) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	350 const char *name = type_name((Type)type);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	351 int ro_count = _counts[RO][type];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	352 int ro_bytes = _bytes [RO][type];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	353 int rw_count = _counts[RW][type];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	354 int rw_bytes = _bytes [RW][type];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	355 int count = ro_count + rw_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	356 int bytes = ro_bytes + rw_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	357
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	358 double ro_perc = 100.0 * double(ro_bytes) / double(ro_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	359 double rw_perc = 100.0 * double(rw_bytes) / double(rw_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	360 double perc = 100.0 * double(bytes) / double(ro_all + rw_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	361
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	362 tty->print_cr(fmt_stats, name,
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	363 ro_count, ro_bytes, ro_perc,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	364 rw_count, rw_bytes, rw_perc,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	365 count, bytes, perc);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	366
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	367 all_ro_count += ro_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	368 all_ro_bytes += ro_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	369 all_rw_count += rw_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	370 all_rw_bytes += rw_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	371 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	372
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	373 int all_count = all_ro_count + all_rw_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	374 int all_bytes = all_ro_bytes + all_rw_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	375
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	376 double all_ro_perc = 100.0 * double(all_ro_bytes) / double(ro_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	377 double all_rw_perc = 100.0 * double(all_rw_bytes) / double(rw_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	378 double all_perc = 100.0 * double(all_bytes) / double(ro_all + rw_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	379
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	380 tty->print_cr("%s", sep);
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	381 tty->print_cr(fmt_stats, "Total",
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	382 all_ro_count, all_ro_bytes, all_ro_perc,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	383 all_rw_count, all_rw_bytes, all_rw_perc,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	384 all_count, all_bytes, all_perc);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	385
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	386 assert(all_ro_bytes == ro_all, "everything should have been counted");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	387 assert(all_rw_bytes == rw_all, "everything should have been counted");
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	388 #undef fmt_stats
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	389 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	390
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	391 // Populate the shared space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	392
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	393 class VM_PopulateDumpSharedSpace: public VM_Operation {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	394 private:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	395 ClassLoaderData* _loader_data;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	396 GrowableArray<Klass> _class_promote_order;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	397 VirtualSpace _md_vs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	398 VirtualSpace _mc_vs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	399
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	400 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	401 VM_PopulateDumpSharedSpace(ClassLoaderData* loader_data,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	402 GrowableArray<Klass> class_promote_order) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	403 _loader_data(loader_data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	404
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	405 // Split up and initialize the misc code and data spaces
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	406 ReservedSpace* shared_rs = MetaspaceShared::shared_rs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	407 int metadata_size = SharedReadOnlySize+SharedReadWriteSize;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	408 ReservedSpace shared_ro_rw = shared_rs->first_part(metadata_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	409 ReservedSpace misc_section = shared_rs->last_part(metadata_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	410
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	411 // Now split into misc sections.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	412 ReservedSpace md_rs = misc_section.first_part(SharedMiscDataSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	413 ReservedSpace mc_rs = misc_section.last_part(SharedMiscDataSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	414 _md_vs.initialize(md_rs, SharedMiscDataSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	415 _mc_vs.initialize(mc_rs, SharedMiscCodeSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	416 _class_promote_order = class_promote_order;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	417 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	418
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	419 VMOp_Type type() const { return VMOp_PopulateDumpSharedSpace; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	420 void doit(); // outline because gdb sucks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	421 }; // class VM_PopulateDumpSharedSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	422
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	423
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	424 void VM_PopulateDumpSharedSpace::doit() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	425 Thread* THREAD = VMThread::vm_thread();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	426 NOT_PRODUCT(SystemDictionary::verify();)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	427 // The following guarantee is meant to ensure that no loader constraints
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	428 // exist yet, since the constraints table is not shared. This becomes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	429 // more important now that we don't re-initialize vtables/itables for
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	430 // shared classes at runtime, where constraints were previously created.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	431 guarantee(SystemDictionary::constraints()->number_of_entries() == 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	432 "loader constraints are not saved");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	433 guarantee(SystemDictionary::placeholders()->number_of_entries() == 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	434 "placeholders are not saved");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	435 // Revisit and implement this if we prelink method handle call sites:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	436 guarantee(SystemDictionary::invoke_method_table() == NULL \|\|
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437 SystemDictionary::invoke_method_table()->number_of_entries() == 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	438 "invoke method table is not saved");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	439
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440 // At this point, many classes have been loaded.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	441 // Gather systemDictionary classes in a global array and do everything to
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	442 // that so we don't have to walk the SystemDictionary again.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	443 _global_klass_objects = new GrowableArray<Klass*>(1000);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444 Universe::basic_type_classes_do(collect_classes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	445 SystemDictionary::classes_do(collect_classes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	446
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	447 tty->print_cr("Number of classes %d", _global_klass_objects->length());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	448
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	449 // Update all the fingerprints in the shared methods.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	450 tty->print("Calculating fingerprints ... ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	451 calculate_fingerprints();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	452 tty->print_cr("done. ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	453
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	454 // Remove all references outside the metadata
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	455 tty->print("Removing unshareable information ... ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	456 remove_unshareable_in_classes();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	457 tty->print_cr("done. ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	458
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	459 // Set up the share data and shared code segments.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	460 char* md_low = _md_vs.low();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	461 char* md_top = md_low;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	462 char* md_end = _md_vs.high();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	463 char* mc_low = _mc_vs.low();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	464 char* mc_top = mc_low;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	465 char* mc_end = _mc_vs.high();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	466
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	467 // Reserve space for the list of Klass*s whose vtables are used
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	468 // for patching others as needed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	469
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	470 void vtbl_list = (void)md_top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	471 int vtbl_list_size = MetaspaceShared::vtbl_list_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	472 Universe::init_self_patching_vtbl_list(vtbl_list, vtbl_list_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	473
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	474 md_top += vtbl_list_size * sizeof(void*);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	475 void* vtable = md_top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	476
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	477 // Reserve space for a new dummy vtable for klass objects in the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	478 // heap. Generate self-patching vtable entries.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	479
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	480 MetaspaceShared::generate_vtable_methods(vtbl_list, &vtable,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	481 &md_top, md_end,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 &mc_top, mc_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	484 // Reorder the system dictionary. (Moving the symbols affects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	485 // how the hash table indices are calculated.)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486 // Not doing this either.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	487
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	488 SystemDictionary::reorder_dictionary();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	489
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	490 NOT_PRODUCT(SystemDictionary::verify();)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	491
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	492 // Copy the the symbol table, and the system dictionary to the shared
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	493 // space in usable form. Copy the hastable
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	494 // buckets first [read-write], then copy the linked lists of entries
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	495 // [read-only].
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	496
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	497 SymbolTable::reverse(md_top);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	498 NOT_PRODUCT(SymbolTable::verify());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	499 SymbolTable::copy_buckets(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	500
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	501 SystemDictionary::reverse();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	502 SystemDictionary::copy_buckets(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	504 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	505 ClassLoader::copy_package_info_buckets(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	506 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	507
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	508 SymbolTable::copy_table(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	509 SystemDictionary::copy_table(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	510 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	511 ClassLoader::copy_package_info_table(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	512 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	513
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	514 // Write the other data to the output array.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	515 WriteClosure wc(md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	516 MetaspaceShared::serialize(&wc);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	517 md_top = wc.get_top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	519 // Print shared spaces all the time
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	520 // To make fmt_space be a syntactic constant (for format warnings), use #define.
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	521 #define fmt_space "%s space: %9d [ %4.1f%% of total] out of %9d bytes [%4.1f%% used] at " PTR_FORMAT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	522 Metaspace* ro_space = _loader_data->ro_metaspace();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	523 Metaspace* rw_space = _loader_data->rw_metaspace();
7591 c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	524
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	525 // Allocated size of each space (may not be all occupied)
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 7591 diff changeset	526 const size_t ro_alloced = ro_space->capacity_bytes_slow(Metaspace::NonClassType);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 7591 diff changeset	527 const size_t rw_alloced = rw_space->capacity_bytes_slow(Metaspace::NonClassType);
7591 c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	528 const size_t md_alloced = md_end-md_low;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	529 const size_t mc_alloced = mc_end-mc_low;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	530 const size_t total_alloced = ro_alloced + rw_alloced + md_alloced + mc_alloced;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	531
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	532 // Occupied size of each space.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 7591 diff changeset	533 const size_t ro_bytes = ro_space->used_bytes_slow(Metaspace::NonClassType);
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 7591 diff changeset	534 const size_t rw_bytes = rw_space->used_bytes_slow(Metaspace::NonClassType);
7591 c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	535 const size_t md_bytes = size_t(md_top - md_low);
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	536 const size_t mc_bytes = size_t(mc_top - mc_low);
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	537
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	538 // Percent of total size
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	539 const size_t total_bytes = ro_bytes + rw_bytes + md_bytes + mc_bytes;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	540 const double ro_t_perc = ro_bytes / double(total_bytes) * 100.0;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	541 const double rw_t_perc = rw_bytes / double(total_bytes) * 100.0;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	542 const double md_t_perc = md_bytes / double(total_bytes) * 100.0;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	543 const double mc_t_perc = mc_bytes / double(total_bytes) * 100.0;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	544
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	545 // Percent of fullness of each space
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	546 const double ro_u_perc = ro_bytes / double(ro_alloced) * 100.0;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	547 const double rw_u_perc = rw_bytes / double(rw_alloced) * 100.0;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	548 const double md_u_perc = md_bytes / double(md_alloced) * 100.0;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	549 const double mc_u_perc = mc_bytes / double(mc_alloced) * 100.0;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	550 const double total_u_perc = total_bytes / double(total_alloced) * 100.0;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	551
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	552 tty->print_cr(fmt_space, "ro", ro_bytes, ro_t_perc, ro_alloced, ro_u_perc, ro_space->bottom());
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	553 tty->print_cr(fmt_space, "rw", rw_bytes, rw_t_perc, rw_alloced, rw_u_perc, rw_space->bottom());
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	554 tty->print_cr(fmt_space, "md", md_bytes, md_t_perc, md_alloced, md_u_perc, md_low);
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	555 tty->print_cr(fmt_space, "mc", mc_bytes, mc_t_perc, mc_alloced, mc_u_perc, mc_low);
7591 c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	556 tty->print_cr("total : %9d [100.0%% of total] out of %9d bytes [%4.1f%% used]",
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	557 total_bytes, total_alloced, total_u_perc);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	558
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	559 // Update the vtable pointers in all of the Klass objects in the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	560 // heap. They should point to newly generated vtable.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	561 patch_klass_vtables(vtbl_list, vtable);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	562
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	563 // dunno what this is for.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	564 char* saved_vtbl = (char)os::malloc(vtbl_list_size sizeof(void*), mtClass);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	565 memmove(saved_vtbl, vtbl_list, vtbl_list_size * sizeof(void*));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	566 memset(vtbl_list, 0, vtbl_list_size * sizeof(void*));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	567
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	568 // Create and write the archive file that maps the shared spaces.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	569
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	570 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	571 mapinfo->populate_header(MetaspaceShared::max_alignment());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	573 // Pass 1 - update file offsets in header.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	574 mapinfo->write_header();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	575 mapinfo->write_space(MetaspaceShared::ro, _loader_data->ro_metaspace(), true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	576 mapinfo->write_space(MetaspaceShared::rw, _loader_data->rw_metaspace(), false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	577 mapinfo->write_region(MetaspaceShared::md, _md_vs.low(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	578 pointer_delta(md_top, _md_vs.low(), sizeof(char)),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	579 SharedMiscDataSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	580 false, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	581 mapinfo->write_region(MetaspaceShared::mc, _mc_vs.low(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	582 pointer_delta(mc_top, _mc_vs.low(), sizeof(char)),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	583 SharedMiscCodeSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	584 true, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	585
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	586 // Pass 2 - write data.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	587 mapinfo->open_for_write();
20730 8210e5f2e21b 8044269: Analysis of archive files. jiangli parents: 17937 diff changeset	588 mapinfo->set_header_crc(mapinfo->compute_header_crc());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589 mapinfo->write_header();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	590 mapinfo->write_space(MetaspaceShared::ro, _loader_data->ro_metaspace(), true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	591 mapinfo->write_space(MetaspaceShared::rw, _loader_data->rw_metaspace(), false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	592 mapinfo->write_region(MetaspaceShared::md, _md_vs.low(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	593 pointer_delta(md_top, _md_vs.low(), sizeof(char)),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	594 SharedMiscDataSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	595 false, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	596 mapinfo->write_region(MetaspaceShared::mc, _mc_vs.low(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	597 pointer_delta(mc_top, _mc_vs.low(), sizeof(char)),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	598 SharedMiscCodeSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	599 true, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	600 mapinfo->close();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	601
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	602 memmove(vtbl_list, saved_vtbl, vtbl_list_size * sizeof(void*));
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	603
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	604 if (PrintSharedSpaces) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	605 DumpAllocClosure dac;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	606 dac.iterate_metaspace(_loader_data->ro_metaspace(), DumpAllocClosure::RO);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	607 dac.iterate_metaspace(_loader_data->rw_metaspace(), DumpAllocClosure::RW);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	608
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	609 dac.dump_stats(int(ro_bytes), int(rw_bytes), int(md_bytes), int(mc_bytes));
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	610 }
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	611 #undef fmt_space
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	612 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	613
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	614 static void link_shared_classes(Klass* obj, TRAPS) {
6983 070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6882 diff changeset	615 Klass* k = obj;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	617 InstanceKlass* ik = (InstanceKlass*) k;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618 // Link the class to cause the bytecodes to be rewritten and the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619 // cpcache to be created.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620 if (ik->init_state() < InstanceKlass::linked) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	621 ik->link_class(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622 guarantee(!HAS_PENDING_EXCEPTION, "exception in class rewriting");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	625 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	626
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	627
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	628 // Support for a simple checksum of the contents of the class list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	629 // file to prevent trivial tampering. The algorithm matches that in
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	630 // the MakeClassList program used by the J2SE build process.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	631 #define JSUM_SEED ((jlong)CONST64(0xcafebabebabecafe))
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	632 static jlong
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	633 jsum(jlong start, const char *buf, const int len)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	634 {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	635 jlong h = start;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	636 char p = (char )buf, *e = p + len;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	637 while (p < e) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	638 char c = *p++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 if (c <= ' ') {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	640 /* Skip spaces and control characters */
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	641 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	642 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	643 h = 31 * h + c;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	644 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	645 return h;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	646 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	647
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	648 // Preload classes from a list, populate the shared spaces and dump to a
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	649 // file.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	650 void MetaspaceShared::preload_and_dump(TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	651 TraceTime timer("Dump Shared Spaces", TraceStartupTime);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	652 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	653
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	654 // Preload classes to be shared.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	655 // Should use some os:: method rather than fopen() here. aB.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	656 // Construct the path to the class list (in jre/lib)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	657 // Walk up two directories from the location of the VM and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	658 // optionally tack on "lib" (depending on platform)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	659 char class_list_path[JVM_MAXPATHLEN];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	660 os::jvm_path(class_list_path, sizeof(class_list_path));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	661 for (int i = 0; i < 3; i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	662 char end = strrchr(class_list_path, os::file_separator());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	663 if (end != NULL) *end = '\0';
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	664 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	665 int class_list_path_len = (int)strlen(class_list_path);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	666 if (class_list_path_len >= 3) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	667 if (strcmp(class_list_path + class_list_path_len - 3, "lib") != 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	668 strcat(class_list_path, os::file_separator());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	669 strcat(class_list_path, "lib");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	670 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	671 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	672 strcat(class_list_path, os::file_separator());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	673 strcat(class_list_path, "classlist");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	674
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	675 FILE* file = fopen(class_list_path, "r");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	676 if (file != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	677 jlong computed_jsum = JSUM_SEED;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	678 jlong file_jsum = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	679
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	680 char class_name[256];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	681 int class_count = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	682 GrowableArray<Klass> class_promote_order = new GrowableArray<Klass*>();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	683
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	684 // sun.io.Converters
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	685 static const char obj_array_sig[] = "[[Ljava/lang/Object;";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	686 SymbolTable::new_permanent_symbol(obj_array_sig, THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	687
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	688 // java.util.HashMap
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	689 static const char map_entry_array_sig[] = "[Ljava/util/Map$Entry;";
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	690 SymbolTable::new_permanent_symbol(map_entry_array_sig, THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	691
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	692 tty->print("Loading classes to share ... ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	693 while ((fgets(class_name, sizeof class_name, file)) != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	694 if (*class_name == '#') {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	695 jint fsh, fsl;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	696 if (sscanf(class_name, "# %8x%8x\n", &fsh, &fsl) == 2) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	697 file_jsum = ((jlong)(fsh) << 32) \| (fsl & 0xffffffff);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	698 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	699
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	700 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	701 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	702 // Remove trailing newline
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	703 size_t name_len = strlen(class_name);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	704 class_name[name_len-1] = '\0';
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	705
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	706 computed_jsum = jsum(computed_jsum, class_name, (const int)name_len - 1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	707
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	708 // Got a class name - load it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	709 TempNewSymbol class_name_symbol = SymbolTable::new_permanent_symbol(class_name, THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	710 guarantee(!HAS_PENDING_EXCEPTION, "Exception creating a symbol.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	711 Klass* klass = SystemDictionary::resolve_or_null(class_name_symbol,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	712 THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	713 guarantee(!HAS_PENDING_EXCEPTION, "Exception resolving a class.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	714 if (klass != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	715 if (PrintSharedSpaces && Verbose && WizardMode) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	716 tty->print_cr("Shared spaces preloaded: %s", class_name);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	717 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	718
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	719
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	720 InstanceKlass* ik = InstanceKlass::cast(klass);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	722 // Should be class load order as per -XX:+TraceClassLoadingPreorder
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	723 class_promote_order->append(ik);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	724
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	725 // Link the class to cause the bytecodes to be rewritten and the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	726 // cpcache to be created. The linking is done as soon as classes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	727 // are loaded in order that the related data structures (klass and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	728 // cpCache) are located together.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	729
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	730 if (ik->init_state() < InstanceKlass::linked) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	731 ik->link_class(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	732 guarantee(!(HAS_PENDING_EXCEPTION), "exception in class rewriting");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	733 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	734
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	735 // TODO: Resolve klasses in constant pool
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	736 ik->constants()->resolve_class_constants(THREAD);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	737
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	738 class_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	739 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	740 if (PrintSharedSpaces && Verbose && WizardMode) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	741 tty->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	742 tty->print_cr(" Preload failed: %s", class_name);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	743 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	744 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	745 file_jsum = 0; // Checksum must be on last line of file
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	746 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	747 if (computed_jsum != file_jsum) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	748 tty->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	749 tty->print_cr("Preload failed: checksum of class list was incorrect.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	750 exit(1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	751 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	752
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	753 tty->print_cr("done. ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	754
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	755 if (PrintSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	756 tty->print_cr("Shared spaces: preloaded %d classes", class_count);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	757 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	758
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	759 // Rewrite and unlink classes.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	760 tty->print("Rewriting and linking classes ... ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	761
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	762 // Link any classes which got missed. (It's not quite clear why
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	763 // they got missed.) This iteration would be unsafe if we weren't
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	764 // single-threaded at this point; however we can't do it on the VM
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	765 // thread because it requires object allocation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	766 SystemDictionary::classes_do(link_shared_classes, CATCH);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	767 tty->print_cr("done. ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	768
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	769 // Create and dump the shared spaces. Everything so far is loaded
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	770 // with the null class loader.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	771 ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	772 VM_PopulateDumpSharedSpace op(loader_data, class_promote_order);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	773 VMThread::execute(&op);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	774
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	775 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	776 char errmsg[JVM_MAXPATHLEN];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	777 os::lasterror(errmsg, JVM_MAXPATHLEN);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	778 tty->print_cr("Loading classlist failed: %s", errmsg);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	779 exit(1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	780 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	781
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	782 // Since various initialization steps have been undone by this process,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	783 // it is not reasonable to continue running a java process.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	784 exit(0);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	785 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	786
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	787
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	788 // Closure for serializing initialization data in from a data area
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	789 // (ptr_array) read from the shared file.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	790
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	791 class ReadClosure : public SerializeClosure {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	792 private:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	793 intptr_t** _ptr_array;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	794
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	795 inline intptr_t nextPtr() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	796 return (_ptr_array)++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	797 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	798
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	799 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	800 ReadClosure(intptr_t** ptr_array) { _ptr_array = ptr_array; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	801
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	802 void do_ptr(void** p) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	803 assert(*p == NULL, "initializing previous initialized pointer.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	804 intptr_t obj = nextPtr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	805 assert((intptr_t)obj >= 0 \|\| (intptr_t)obj < -100,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	806 "hit tag while initializing ptrs.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	807 p = (void)obj;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	808 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	809
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	810 void do_tag(int tag) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	811 int old_tag;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	812 old_tag = (int)(intptr_t)nextPtr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	813 // do_int(&old_tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	814 assert(tag == old_tag, "old tag doesn't match");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	815 FileMapInfo::assert_mark(tag == old_tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	816 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	817
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	818 void do_region(u_char* start, size_t size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	819 assert((intptr_t)start % sizeof(intptr_t) == 0, "bad alignment");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	820 assert(size % sizeof(intptr_t) == 0, "bad size");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	821 do_tag((int)size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	822 while (size > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	823 (intptr_t)start = nextPtr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	824 start += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	825 size -= sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	826 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	827 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	828
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	829 bool reading() const { return true; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	830 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	831
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	832 // Return true if given address is in the mapped shared space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	833 bool MetaspaceShared::is_in_shared_space(const void* p) {
11056 221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	834 return UseSharedSpaces && FileMapInfo::current_info()->is_in_shared_space(p);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	835 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	836
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	837 void MetaspaceShared::print_shared_spaces() {
11056 221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	838 if (UseSharedSpaces) {
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	839 FileMapInfo::current_info()->print_shared_spaces();
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	840 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	841 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	842
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	843
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	844 // Map shared spaces at requested addresses and return if succeeded.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	845 // Need to keep the bounds of the ro and rw space for the Metaspace::contains
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	846 // call, or is_in_shared_space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	847 bool MetaspaceShared::map_shared_spaces(FileMapInfo* mapinfo) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	848 size_t image_alignment = mapinfo->alignment();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	849
7460 6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	850 #ifndef _WINDOWS
6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	851 // Map in the shared memory and then map the regions on top of it.
6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	852 // On Windows, don't map the memory here because it will cause the
6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	853 // mappings of the regions to fail.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	854 ReservedSpace shared_rs = mapinfo->reserve_shared_memory();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	855 if (!shared_rs.is_reserved()) return false;
7460 6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	856 #endif
6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	857
6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	858 assert(!DumpSharedSpaces, "Should not be called with DumpSharedSpaces");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	859
11056 221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	860 char* _ro_base = NULL;
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	861 char* _rw_base = NULL;
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	862 char* _md_base = NULL;
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	863 char* _mc_base = NULL;
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	864
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	865 // Map each shared region
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	866 if ((_ro_base = mapinfo->map_region(ro)) != NULL &&
20730 8210e5f2e21b 8044269: Analysis of archive files. jiangli parents: 17937 diff changeset	867 mapinfo->verify_region_checksum(ro) &&
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	868 (_rw_base = mapinfo->map_region(rw)) != NULL &&
20730 8210e5f2e21b 8044269: Analysis of archive files. jiangli parents: 17937 diff changeset	869 mapinfo->verify_region_checksum(rw) &&
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	870 (_md_base = mapinfo->map_region(md)) != NULL &&
20730 8210e5f2e21b 8044269: Analysis of archive files. jiangli parents: 17937 diff changeset	871 mapinfo->verify_region_checksum(md) &&
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	872 (_mc_base = mapinfo->map_region(mc)) != NULL &&
20730 8210e5f2e21b 8044269: Analysis of archive files. jiangli parents: 17937 diff changeset	873 mapinfo->verify_region_checksum(mc) &&
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	874 (image_alignment == (size_t)max_alignment())) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	875 // Success (no need to do anything)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	876 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	877 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	878 // If there was a failure in mapping any of the spaces, unmap the ones
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	879 // that succeeded
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	880 if (_ro_base != NULL) mapinfo->unmap_region(ro);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	881 if (_rw_base != NULL) mapinfo->unmap_region(rw);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	882 if (_md_base != NULL) mapinfo->unmap_region(md);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	883 if (_mc_base != NULL) mapinfo->unmap_region(mc);
7460 6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	884 #ifndef _WINDOWS
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	885 // Release the entire mapped region
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	886 shared_rs.release();
7460 6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	887 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	888 // If -Xshare:on is specified, print out the error message and exit VM,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	889 // otherwise, set UseSharedSpaces to false and continue.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	890 if (RequireSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	891 vm_exit_during_initialization("Unable to use shared archive.", NULL);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	892 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	893 FLAG_SET_DEFAULT(UseSharedSpaces, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	894 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	895 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	896 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	897 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	898
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	899 // Read the miscellaneous data from the shared file, and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	900 // serialize it out to its various destinations.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	901
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	902 void MetaspaceShared::initialize_shared_spaces() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	903 FileMapInfo *mapinfo = FileMapInfo::current_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	904
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	905 char* buffer = mapinfo->region_base(md);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	906
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	907 // Skip over (reserve space for) a list of addresses of C++ vtables
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	908 // for Klass objects. They get filled in later.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	909
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	910 void vtbl_list = (void)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	911 buffer += MetaspaceShared::vtbl_list_size * sizeof(void*);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	912 Universe::init_self_patching_vtbl_list(vtbl_list, vtbl_list_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	913
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	914 // Skip over (reserve space for) dummy C++ vtables Klass objects.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	915 // They are used as is.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	916
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	917 intptr_t vtable_size = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	918 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	919 buffer += vtable_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	920
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	921 // Create the symbol table using the bucket array at this spot in the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	922 // misc data space. Since the symbol table is often modified, this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	923 // region (of mapped pages) will be copy-on-write.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	924
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	925 int symbolTableLen = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	926 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	927 int number_of_entries = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	928 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	929 SymbolTable::create_table((HashtableBucket<mtSymbol>*)buffer, symbolTableLen,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	930 number_of_entries);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	931 buffer += symbolTableLen;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	932
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	933 // Create the shared dictionary using the bucket array at this spot in
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	934 // the misc data space. Since the shared dictionary table is never
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	935 // modified, this region (of mapped pages) will be (effectively, if
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	936 // not explicitly) read-only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	937
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	938 int sharedDictionaryLen = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	939 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	940 number_of_entries = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	941 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	942 SystemDictionary::set_shared_dictionary((HashtableBucket<mtClass>*)buffer,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	943 sharedDictionaryLen,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	944 number_of_entries);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	945 buffer += sharedDictionaryLen;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	946
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	947 // Create the package info table using the bucket array at this spot in
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	948 // the misc data space. Since the package info table is never
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	949 // modified, this region (of mapped pages) will be (effectively, if
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	950 // not explicitly) read-only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	951
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	952 int pkgInfoLen = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	953 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	954 number_of_entries = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	955 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	956 ClassLoader::create_package_info_table((HashtableBucket<mtClass>*)buffer, pkgInfoLen,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	957 number_of_entries);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	958 buffer += pkgInfoLen;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	959 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	960
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	961 // The following data in the shared misc data region are the linked
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	962 // list elements (HashtableEntry objects) for the symbol table, string
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	963 // table, and shared dictionary. The heap objects refered to by the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	964 // symbol table, string table, and shared dictionary are permanent and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	965 // unmovable. Since new entries added to the string and symbol tables
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	966 // are always added at the beginning of the linked lists, THESE LINKED
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	967 // LIST ELEMENTS ARE READ-ONLY.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	968
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	969 int len = (intptr_t)buffer; // skip over symbol table entries
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	970 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	971 buffer += len;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	972
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	973 len = (intptr_t)buffer; // skip over shared dictionary entries
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	974 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	975 buffer += len;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	976
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	977 len = (intptr_t)buffer; // skip over package info table entries
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	978 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	979 buffer += len;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	980
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	981 len = (intptr_t)buffer; // skip over package info table char[] arrays.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	982 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	983 buffer += len;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	984
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	985 intptr_t* array = (intptr_t*)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	986 ReadClosure rc(&array);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	987 serialize(&rc);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	988
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	989 // Close the mapinfo file
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	990 mapinfo->close();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	991 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	992
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	993 // JVM/TI RedefineClasses() support:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	994 bool MetaspaceShared::remap_shared_readonly_as_readwrite() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	995 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	996
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	997 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	998 // remap the shared readonly space to shared readwrite, private
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	999 FileMapInfo* mapinfo = FileMapInfo::current_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1000 if (!mapinfo->remap_shared_readonly_as_readwrite()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1001 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1002 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1003 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1004 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1005 }

Mercurial > hg > truffle

annotate src/share/vm/memory/metaspaceShared.cpp @ 20730:8210e5f2e21b