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

annotate src/share/vm/memory/metaspaceShared.cpp @ 20389:622c6e0ad4d6

8048150: Allow easy configurations for large CDS archives Summary: Estimate the size of shared archive based on the number of classes in the classlist file Reviewed-by: iklam, jiangli, minqi, dholmes

author	ccheung
date	Mon, 25 Aug 2014 00:13:36 -0700
parents	6e0cb14ce59b
children	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"
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	29 #include "classfile/sharedClassUtil.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	30 #include "classfile/symbolTable.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	31 #include "classfile/systemDictionary.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	32 #include "code/codeCache.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	33 #include "memory/filemap.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	34 #include "memory/gcLocker.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	35 #include "memory/metaspace.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	36 #include "memory/metaspaceShared.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	37 #include "oops/objArrayOop.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	38 #include "oops/oop.inline.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	39 #include "runtime/signature.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	40 #include "runtime/vm_operations.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	41 #include "runtime/vmThread.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	42 #include "utilities/hashtable.inline.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	43
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	44 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	45
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	46 int MetaspaceShared::_max_alignment = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	47
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	48 ReservedSpace* MetaspaceShared::_shared_rs = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	49
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	50 bool MetaspaceShared::_link_classes_made_progress;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	51 bool MetaspaceShared::_check_classes_made_progress;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	52 bool MetaspaceShared::_has_error_classes;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	53 bool MetaspaceShared::_archive_loading_failed = false;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	54 // 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	55 // miscellaneous data from/to the shared archive file.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	56
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	57 void MetaspaceShared::serialize(SerializeClosure* soc) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	58 int tag = 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	59 soc->do_tag(--tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	60
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	61 // Verify the sizes of various metadata in the system.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	62 soc->do_tag(sizeof(Method));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	63 soc->do_tag(sizeof(ConstMethod));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	64 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	65 soc->do_tag(sizeof(ConstantPool));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	66 soc->do_tag(sizeof(ConstantPoolCache));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	67 soc->do_tag(objArrayOopDesc::base_offset_in_bytes());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	68 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	69 soc->do_tag(sizeof(Symbol));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	70
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	71 // Dump/restore miscellaneous metadata.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	72 Universe::serialize(soc, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	73 soc->do_tag(--tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	74
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	75 // Dump/restore references to commonly used names and signatures.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	76 vmSymbols::serialize(soc);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	77 soc->do_tag(--tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	78
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	79 soc->do_tag(666);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	80 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	81
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	82
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	83 // CDS code for dumping shared archive.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	84
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	85 // 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	86 // 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	87 static GrowableArray<Klass> _global_klass_objects;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	88 static void collect_classes(Klass* k) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	89 _global_klass_objects->append_if_missing(k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	90 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	91 // Add in the array classes too
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	92 InstanceKlass* ik = InstanceKlass::cast(k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	93 ik->array_klasses_do(collect_classes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	94 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	95 }
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 static void remove_unshareable_in_classes() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	98 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	99 Klass* k = _global_klass_objects->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	100 k->remove_unshareable_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	101 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	102 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	103
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	104 // 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	105 // 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	106 static void calculate_fingerprints() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	107 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	108 Klass* k = _global_klass_objects->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	109 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	110 InstanceKlass* ik = InstanceKlass::cast(k);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	111 for (int i = 0; i < ik->methods()->length(); i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	112 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	113 Fingerprinter fp(m);
4f9a42c33738 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously coleenp parents: 12056 diff changeset	114 // 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	115 fp.fingerprint();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 }
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	119 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	120
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	121 // Patch C++ vtable pointer in metadata.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	122
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	123 // 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	124 // JVM library.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	125 // 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	126 // 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	127 // 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	128 // then use the list to do the fixing.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	129 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	130 // Our constructed vtables:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	131 // Dump time:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	132 // 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	133 // 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	134 // 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	135 // 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	136 // Table layout: NOTE FIXED SIZE
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	137 // 1. vtbl pointers
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	138 // 2. #Klass X #virtual methods per Klass
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	139 // 1 entry for each, in the order:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	140 // 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	141 // 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	142 // ...
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	143 // 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	144 // ... Klass<vtbl_list_size>:method<num_virtuals> entry
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	145 // Sample entry: (Sparc):
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	146 // save(sp, -256, sp)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	147 // ba,pt common_code
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	148 // 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	149 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	150 // Restore time:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	151 // 1. initialize_shared_space: reserve space for table
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	152 // 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	153 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	154 // Execution time:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	155 // 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	156 // 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	157 // 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	158 // 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	159 // 4. common_code:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	160 // 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	161 // 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	162 // 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	163
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	164
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	165 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	166 void* old_vtbl_ptr = (void*)obj;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	167 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	168 if (vtbl_list[i] == old_vtbl_ptr) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	169 return (void*)new_vtable_start + i MetaspaceShared::num_virtuals;
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	172 ShouldNotReachHere();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	173 return NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	174 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	175
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	176 // Assumes the vtable is in first slot in object.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	177 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	178 int n = _global_klass_objects->length();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	179 for (int i = 0; i < n; i++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	180 Klass* obj = _global_klass_objects->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	181 // 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	182 // 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	183 if (obj->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	184 InstanceKlass* ik = InstanceKlass::cast(obj);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	185 (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	186 ConstantPool* cp = ik->constants();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	187 (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	188 for (int j = 0; j < ik->methods()->length(); j++) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	189 Method* m = ik->methods()->at(j);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	190 (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	191 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	192 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	193 // Array klasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	194 Klass* k = obj;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	195 (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	196 }
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	199
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	200 // 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	201 // written to the shared file.
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 class WriteClosure : public SerializeClosure {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	204 private:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	205 intptr_t* top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	206 char* end;
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 inline void check_space() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	209 if ((char*)top + sizeof(intptr_t) > end) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	210 report_out_of_shared_space(SharedMiscData);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	211 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	212 }
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 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	215 WriteClosure(char* md_top, char* md_end) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	216 top = (intptr_t*)md_top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	217 end = md_end;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	218 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	219
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	220 char* get_top() { return (char*)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 void do_ptr(void** p) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	223 check_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	224 top = (intptr_t)p;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	225 ++top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	226 }
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 void do_tag(int tag) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	229 check_space();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	230 *top = (intptr_t)tag;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	231 ++top;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	234 void do_region(u_char* start, size_t size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	235 if ((char*)top + size > end) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	236 report_out_of_shared_space(SharedMiscData);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	237 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	238 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	239 assert(size % sizeof(intptr_t) == 0, "bad size");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	240 do_tag((int)size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	241 while (size > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	242 top = (intptr_t*)start;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	243 ++top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	244 start += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	245 size -= sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	246 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	247 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	248
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	249 bool reading() const { return false; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	250 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	251
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	252 // This is for dumping detailed statistics for the allocations
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	253 // in the shared spaces.
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	254 class DumpAllocClosure : public Metaspace::AllocRecordClosure {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	255 public:
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	256
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	257 // Here's poor man's enum inheritance
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	258 #define SHAREDSPACE_OBJ_TYPES_DO(f) \
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	259 METASPACE_OBJ_TYPES_DO(f) \
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	260 f(SymbolHashentry) \
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	261 f(SymbolBuckets) \
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	262 f(Other)
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	263
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	264 #define SHAREDSPACE_OBJ_TYPE_DECLARE(name) name ## Type,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	265 #define SHAREDSPACE_OBJ_TYPE_NAME_CASE(name) case name ## Type: return #name;
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 enum Type {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	268 // Types are MetaspaceObj::ClassType, MetaspaceObj::SymbolType, etc
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	269 SHAREDSPACE_OBJ_TYPES_DO(SHAREDSPACE_OBJ_TYPE_DECLARE)
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	270 _number_of_types
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	271 };
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	272
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	273 static const char * type_name(Type type) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	274 switch(type) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	275 SHAREDSPACE_OBJ_TYPES_DO(SHAREDSPACE_OBJ_TYPE_NAME_CASE)
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	276 default:
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	277 ShouldNotReachHere();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	278 return NULL;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	279 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	280 }
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 public:
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	283 enum {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	284 RO = 0,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	285 RW = 1
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
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	288 int _counts[2][_number_of_types];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	289 int _bytes [2][_number_of_types];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	290 int _which;
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 DumpAllocClosure() {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	293 memset(_counts, 0, sizeof(_counts));
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	294 memset(_bytes, 0, sizeof(_bytes));
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	295 };
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 void iterate_metaspace(Metaspace* space, int which) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	298 assert(which == RO \|\| which == RW, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	299 _which = which;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	300 space->iterate(this);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	301 }
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 virtual void doit(address ptr, MetaspaceObj::Type type, int byte_size) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	304 assert(int(type) >= 0 && type < MetaspaceObj::_number_of_types, "sanity");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	305 _counts[_which][type] ++;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	306 _bytes [_which][type] += byte_size;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	307 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	308
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	309 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	310 };
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	311
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	312 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	313 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	314 int other_bytes = md_all + mc_all;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	315
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	316 // Calculate size of data that was not allocated by Metaspace::allocate()
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	317 int symbol_count = _counts[RO][MetaspaceObj::SymbolType];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	318 int symhash_bytes = symbol_count * sizeof (HashtableEntry<Symbol*, mtSymbol>);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	319 int symbuck_count = SymbolTable::the_table()->table_size();
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	320 int symbuck_bytes = symbuck_count * sizeof(HashtableBucket<mtSymbol>);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	321
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	322 _counts[RW][SymbolHashentryType] = symbol_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	323 _bytes [RW][SymbolHashentryType] = symhash_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	324 other_bytes -= symhash_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	325
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	326 _counts[RW][SymbolBucketsType] = symbuck_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	327 _bytes [RW][SymbolBucketsType] = symbuck_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	328 other_bytes -= symbuck_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	329
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	330 // TODO: count things like dictionary, vtable, etc
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	331 _bytes[RW][OtherType] = other_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	332
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	333 // prevent divide-by-zero
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	334 if (ro_all < 1) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	335 ro_all = 1;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	336 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	337 if (rw_all < 1) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	338 rw_all = 1;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	339 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	340
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	341 int all_ro_count = 0;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	342 int all_ro_bytes = 0;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	343 int all_rw_count = 0;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	344 int all_rw_bytes = 0;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	345
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	346 // 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	347 #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	348 const char *sep = "--------------------+---------------------------+---------------------------+--------------------------";
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	349 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	350
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	351 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	352 tty->print_cr("%s", hdr);
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	353 tty->print_cr("%s", sep);
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	354 for (int type = 0; type < int(_number_of_types); type ++) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	355 const char *name = type_name((Type)type);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	356 int ro_count = _counts[RO][type];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	357 int ro_bytes = _bytes [RO][type];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	358 int rw_count = _counts[RW][type];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	359 int rw_bytes = _bytes [RW][type];
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	360 int count = ro_count + rw_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	361 int bytes = ro_bytes + rw_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	362
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	363 double ro_perc = 100.0 * double(ro_bytes) / double(ro_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	364 double rw_perc = 100.0 * double(rw_bytes) / double(rw_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	365 double perc = 100.0 * double(bytes) / double(ro_all + rw_all);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	366
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	367 tty->print_cr(fmt_stats, name,
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	368 ro_count, ro_bytes, ro_perc,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	369 rw_count, rw_bytes, rw_perc,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	370 count, bytes, perc);
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 all_ro_count += ro_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	373 all_ro_bytes += ro_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	374 all_rw_count += rw_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	375 all_rw_bytes += rw_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	376 }
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	377
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	378 int all_count = all_ro_count + all_rw_count;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	379 int all_bytes = all_ro_bytes + all_rw_bytes;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	380
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	381 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	382 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	383 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	384
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	385 tty->print_cr("%s", sep);
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	386 tty->print_cr(fmt_stats, "Total",
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	387 all_ro_count, all_ro_bytes, all_ro_perc,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	388 all_rw_count, all_rw_bytes, all_rw_perc,
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	389 all_count, all_bytes, all_perc);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	390
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	391 assert(all_ro_bytes == ro_all, "everything should have been counted");
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	392 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	393 #undef fmt_stats
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	394 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	395
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	396 // Populate the shared space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	397
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	398 class VM_PopulateDumpSharedSpace: public VM_Operation {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	399 private:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	400 ClassLoaderData* _loader_data;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	401 GrowableArray<Klass> _class_promote_order;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	402 VirtualSpace _md_vs;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	403 VirtualSpace _mc_vs;
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 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	406 VM_PopulateDumpSharedSpace(ClassLoaderData* loader_data,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	407 GrowableArray<Klass> class_promote_order) :
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	408 _loader_data(loader_data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	409
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	410 // 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	411 ReservedSpace* shared_rs = MetaspaceShared::shared_rs();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	412 int metadata_size = SharedReadOnlySize+SharedReadWriteSize;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	413 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	414 ReservedSpace misc_section = shared_rs->last_part(metadata_size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	415
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	416 // Now split into misc sections.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	417 ReservedSpace md_rs = misc_section.first_part(SharedMiscDataSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	418 ReservedSpace mc_rs = misc_section.last_part(SharedMiscDataSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	419 _md_vs.initialize(md_rs, SharedMiscDataSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	420 _mc_vs.initialize(mc_rs, SharedMiscCodeSize);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	421 _class_promote_order = class_promote_order;
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 VMOp_Type type() const { return VMOp_PopulateDumpSharedSpace; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	425 void doit(); // outline because gdb sucks
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	426 }; // class VM_PopulateDumpSharedSpace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	427
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	428
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	429 void VM_PopulateDumpSharedSpace::doit() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	430 Thread* THREAD = VMThread::vm_thread();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	431 NOT_PRODUCT(SystemDictionary::verify();)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	432 // 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	433 // 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	434 // 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	435 // shared classes at runtime, where constraints were previously created.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	436 guarantee(SystemDictionary::constraints()->number_of_entries() == 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437 "loader constraints are not saved");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	438 guarantee(SystemDictionary::placeholders()->number_of_entries() == 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	439 "placeholders are not saved");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440 // 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	441 guarantee(SystemDictionary::invoke_method_table() == NULL \|\|
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	442 SystemDictionary::invoke_method_table()->number_of_entries() == 0,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	443 "invoke method table is not saved");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	445 // At this point, many classes have been loaded.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	446 // 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	447 // 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	448 _global_klass_objects = new GrowableArray<Klass*>(1000);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	449 Universe::basic_type_classes_do(collect_classes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	450 SystemDictionary::classes_do(collect_classes);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	451
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	452 tty->print_cr("Number of classes %d", _global_klass_objects->length());
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	453 {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	454 int num_type_array = 0, num_obj_array = 0, num_inst = 0;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	455 for (int i = 0; i < _global_klass_objects->length(); i++) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	456 Klass* k = _global_klass_objects->at(i);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	457 if (k->oop_is_instance()) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	458 num_inst ++;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	459 } else if (k->oop_is_objArray()) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	460 num_obj_array ++;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	461 } else {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	462 assert(k->oop_is_typeArray(), "sanity");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	463 num_type_array ++;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	464 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	465 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	466 tty->print_cr(" instance classes = %5d", num_inst);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	467 tty->print_cr(" obj array classes = %5d", num_obj_array);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	468 tty->print_cr(" type array classes = %5d", num_type_array);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	469 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	470
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	471 // Update all the fingerprints in the shared methods.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	472 tty->print("Calculating fingerprints ... ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	473 calculate_fingerprints();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	474 tty->print_cr("done. ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	475
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	476 // Remove all references outside the metadata
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	477 tty->print("Removing unshareable information ... ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	478 remove_unshareable_in_classes();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	479 tty->print_cr("done. ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	480
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	481 // Set up the share data and shared code segments.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 char* md_low = _md_vs.low();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483 char* md_top = md_low;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	484 char* md_end = _md_vs.high();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	485 char* mc_low = _mc_vs.low();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486 char* mc_top = mc_low;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	487 char* mc_end = _mc_vs.high();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	488
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	489 // 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	490 // for patching others as needed.
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 void vtbl_list = (void)md_top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	493 int vtbl_list_size = MetaspaceShared::vtbl_list_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	494 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	495
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	496 md_top += vtbl_list_size * sizeof(void*);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	497 void* vtable = md_top;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	498
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	499 // 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	500 // heap. Generate self-patching vtable entries.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	501
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	502 MetaspaceShared::generate_vtable_methods(vtbl_list, &vtable,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503 &md_top, md_end,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	504 &mc_top, mc_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	505
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	506 // Reorder the system dictionary. (Moving the symbols affects
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	507 // how the hash table indices are calculated.)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	508 // Not doing this either.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	509
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	510 SystemDictionary::reorder_dictionary();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	511
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	512 NOT_PRODUCT(SystemDictionary::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 // 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	515 // space in usable form. Copy the hastable
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	516 // 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	517 // [read-only].
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 SymbolTable::reverse(md_top);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	520 NOT_PRODUCT(SymbolTable::verify());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	521 SymbolTable::copy_buckets(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	522
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	523 SystemDictionary::reverse();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	524 SystemDictionary::copy_buckets(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	525
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	526 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	527 ClassLoader::copy_package_info_buckets(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	528 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	529
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	530 SymbolTable::copy_table(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	531 SystemDictionary::copy_table(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	532 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	533 ClassLoader::copy_package_info_table(&md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	534 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	535
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	536 // Write the other data to the output array.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	537 WriteClosure wc(md_top, md_end);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	538 MetaspaceShared::serialize(&wc);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	539 md_top = wc.get_top();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	540
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541 // Print shared spaces all the time
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	542 // 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	543 #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	544 Metaspace* ro_space = _loader_data->ro_metaspace();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	545 Metaspace* rw_space = _loader_data->rw_metaspace();
7591 c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	546
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	547 // 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	548 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	549 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	550 const size_t md_alloced = md_end-md_low;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	551 const size_t mc_alloced = mc_end-mc_low;
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	552 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	553
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	554 // Occupied size of each space.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 7591 diff changeset	555 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	556 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	557 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	558 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	559
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	560 // Percent of total size
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	561 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	562 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	563 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	564 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	565 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	566
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	567 // Percent of fullness of each space
c793367610c1 8005467: CDS size information is incorrect and unfriendly coleenp parents: 7460 diff changeset	568 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	569 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	570 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	571 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	572 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	573
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	574 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	575 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	576 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	577 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	578 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	579 total_bytes, total_alloced, total_u_perc);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	580
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	581 // 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	582 // heap. They should point to newly generated vtable.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	583 patch_klass_vtables(vtbl_list, vtable);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	584
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	585 // dunno what this is for.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	586 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	587 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	588 memset(vtbl_list, 0, vtbl_list_size * sizeof(void*));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	590 // 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	591
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	592 FileMapInfo* mapinfo = new FileMapInfo();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	593 mapinfo->populate_header(MetaspaceShared::max_alignment());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	594
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	595 // Pass 1 - update file offsets in header.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	596 mapinfo->write_header();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	597 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	598 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	599 mapinfo->write_region(MetaspaceShared::md, _md_vs.low(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	600 pointer_delta(md_top, _md_vs.low(), sizeof(char)),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	601 SharedMiscDataSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	602 false, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	603 mapinfo->write_region(MetaspaceShared::mc, _mc_vs.low(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	604 pointer_delta(mc_top, _mc_vs.low(), sizeof(char)),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	605 SharedMiscCodeSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	606 true, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	607
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	608 // Pass 2 - write data.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	609 mapinfo->open_for_write();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	610 mapinfo->write_header();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	611 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	612 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	613 mapinfo->write_region(MetaspaceShared::md, _md_vs.low(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	614 pointer_delta(md_top, _md_vs.low(), sizeof(char)),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 SharedMiscDataSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616 false, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	617 mapinfo->write_region(MetaspaceShared::mc, _mc_vs.low(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618 pointer_delta(mc_top, _mc_vs.low(), sizeof(char)),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619 SharedMiscCodeSize,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620 true, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	621 mapinfo->close();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623 memmove(vtbl_list, saved_vtbl, vtbl_list_size * sizeof(void*));
10376 a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	624
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	625 if (PrintSharedSpaces) {
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	626 DumpAllocClosure dac;
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	627 dac.iterate_metaspace(_loader_data->ro_metaspace(), DumpAllocClosure::RO);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	628 dac.iterate_metaspace(_loader_data->rw_metaspace(), DumpAllocClosure::RW);
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	629
a1ebd310d5c1 8014912: Restore PrintSharedSpaces functionality after NPG iklam parents: 10183 diff changeset	630 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	631 }
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17876 diff changeset	632 #undef fmt_space
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	633 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	634
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	635
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	636 void MetaspaceShared::link_one_shared_class(Klass* obj, TRAPS) {
6983 070d523b96a7 8001471: Klass::cast() does nothing hseigel parents: 6882 diff changeset	637 Klass* k = obj;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	638 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 InstanceKlass* ik = (InstanceKlass*) k;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	640 // Link the class to cause the bytecodes to be rewritten and the
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	641 // cpcache to be created. Class verification is done according
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	642 // to -Xverify setting.
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	643 _link_classes_made_progress \|= try_link_class(ik, THREAD);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	644 guarantee(!HAS_PENDING_EXCEPTION, "exception in link_class");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	645 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	646 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	647
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	648 void MetaspaceShared::check_one_shared_class(Klass* k) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	649 if (k->oop_is_instance() && InstanceKlass::cast(k)->check_sharing_error_state()) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	650 _check_classes_made_progress = true;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	651 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	652 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	653
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	654 void MetaspaceShared::link_and_cleanup_shared_classes(TRAPS) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	655 // We need to iterate because verification may cause additional classes
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	656 // to be loaded.
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	657 do {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	658 _link_classes_made_progress = false;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	659 SystemDictionary::classes_do(link_one_shared_class, THREAD);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	660 guarantee(!HAS_PENDING_EXCEPTION, "exception in link_class");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	661 } while (_link_classes_made_progress);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	662
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	663 if (_has_error_classes) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	664 // Mark all classes whose super class or interfaces failed verification.
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	665 do {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	666 // Not completely sure if we need to do this iteratively. Anyway,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	667 // we should come here only if there are unverifiable classes, which
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	668 // shouldn't happen in normal cases. So better safe than sorry.
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	669 _check_classes_made_progress = false;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	670 SystemDictionary::classes_do(check_one_shared_class);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	671 } while (_check_classes_made_progress);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	672
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	673 if (IgnoreUnverifiableClassesDuringDump) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	674 // This is useful when running JCK or SQE tests. You should not
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	675 // enable this when running real apps.
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	676 SystemDictionary::remove_classes_in_error_state();
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	677 } else {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	678 tty->print_cr("Please remove the unverifiable classes from your class list and try again");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	679 exit(1);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	680 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	681 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	682 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	683
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	684 void MetaspaceShared::prepare_for_dumping() {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	685 ClassLoader::initialize_shared_path();
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	686 FileMapInfo::allocate_classpath_entry_table();
6725 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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	689 // 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	690 // file.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	691 void MetaspaceShared::preload_and_dump(TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	692 TraceTime timer("Dump Shared Spaces", TraceStartupTime);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	693 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	694
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	695 tty->print_cr("Allocated shared space: %d bytes at " PTR_FORMAT,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	696 MetaspaceShared::shared_rs()->size(),
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	697 MetaspaceShared::shared_rs()->base());
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	698
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	699 // Preload classes to be shared.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	700 // Should use some os:: method rather than fopen() here. aB.
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	701 const char* class_list_path;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	702 if (SharedClassListFile == NULL) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	703 // Construct the path to the class list (in jre/lib)
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	704 // Walk up two directories from the location of the VM and
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	705 // optionally tack on "lib" (depending on platform)
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	706 char class_list_path_str[JVM_MAXPATHLEN];
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	707 os::jvm_path(class_list_path_str, sizeof(class_list_path_str));
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	708 for (int i = 0; i < 3; i++) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	709 char end = strrchr(class_list_path_str, os::file_separator());
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	710 if (end != NULL) *end = '\0';
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	711 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	712 int class_list_path_len = (int)strlen(class_list_path_str);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	713 if (class_list_path_len >= 3) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	714 if (strcmp(class_list_path_str + class_list_path_len - 3, "lib") != 0) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	715 strcat(class_list_path_str, os::file_separator());
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	716 strcat(class_list_path_str, "lib");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	717 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	718 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	719 strcat(class_list_path_str, os::file_separator());
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	720 strcat(class_list_path_str, "classlist");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	721 class_list_path = class_list_path_str;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	722 } else {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	723 class_list_path = SharedClassListFile;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	724 }
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	725
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	726 int class_count = 0;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	727 GrowableArray<Klass> class_promote_order = new GrowableArray<Klass*>();
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	728
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	729 // sun.io.Converters
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	730 static const char obj_array_sig[] = "[[Ljava/lang/Object;";
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	731 SymbolTable::new_permanent_symbol(obj_array_sig, THREAD);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	732
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	733 // java.util.HashMap
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	734 static const char map_entry_array_sig[] = "[Ljava/util/Map$Entry;";
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	735 SymbolTable::new_permanent_symbol(map_entry_array_sig, THREAD);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	736
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	737 tty->print_cr("Loading classes to share ...");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	738 _has_error_classes = false;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	739 class_count += preload_and_dump(class_list_path, class_promote_order,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	740 THREAD);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	741 if (ExtraSharedClassListFile) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	742 class_count += preload_and_dump(ExtraSharedClassListFile, class_promote_order,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	743 THREAD);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	744 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	745 tty->print_cr("Loading classes to share: done.");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	746
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	747 if (PrintSharedSpaces) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	748 tty->print_cr("Shared spaces: preloaded %d classes", class_count);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	749 }
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	750
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	751 // Rewrite and link classes
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	752 tty->print_cr("Rewriting and linking classes ...");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	753
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	754 // Link any classes which got missed. This would happen if we have loaded classes that
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	755 // were not explicitly specified in the classlist. E.g., if an interface implemented by class K
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	756 // fails verification, all other interfaces that were not specified in the classlist but
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	757 // are implemented by K are not verified.
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	758 link_and_cleanup_shared_classes(CATCH);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	759 tty->print_cr("Rewriting and linking classes: done");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	760
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	761 // Create and dump the shared spaces. Everything so far is loaded
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	762 // with the null class loader.
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	763 ClassLoaderData* loader_data = ClassLoaderData::the_null_class_loader_data();
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	764 VM_PopulateDumpSharedSpace op(loader_data, class_promote_order);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	765 VMThread::execute(&op);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	766
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	767 // Since various initialization steps have been undone by this process,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	768 // it is not reasonable to continue running a java process.
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	769 exit(0);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	770 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	771
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	772 int MetaspaceShared::preload_and_dump(const char * class_list_path,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	773 GrowableArray<Klass> class_promote_order,
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	774 TRAPS) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	775 FILE* file = fopen(class_list_path, "r");
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	776 char class_name[256];
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	777 int class_count = 0;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	778
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	779 if (file != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	780 while ((fgets(class_name, sizeof class_name, file)) != NULL) {
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	781 if (*class_name == '#') { // comment
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	782 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	783 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	784 // Remove trailing newline
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	785 size_t name_len = strlen(class_name);
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	786 if (class_name[name_len-1] == '\n') {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	787 class_name[name_len-1] = '\0';
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	788 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	789
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	790 // Got a class name - load it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	791 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	792 guarantee(!HAS_PENDING_EXCEPTION, "Exception creating a symbol.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	793 Klass* klass = SystemDictionary::resolve_or_null(class_name_symbol,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	794 THREAD);
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	795 CLEAR_PENDING_EXCEPTION;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	796 if (klass != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	797 if (PrintSharedSpaces && Verbose && WizardMode) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	798 tty->print_cr("Shared spaces preloaded: %s", class_name);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	799 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	800
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	801 InstanceKlass* ik = InstanceKlass::cast(klass);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	802
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	803 // Should be class load order as per -XX:+TraceClassLoadingPreorder
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	804 class_promote_order->append(ik);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	805
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	806 // 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	807 // 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	808 // 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	809 // cpCache) are located together.
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	810 try_link_class(ik, THREAD);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	811 guarantee(!HAS_PENDING_EXCEPTION, "exception in link_class");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	812
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	813 class_count++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	814 } else {
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	815 //tty->print_cr("Preload failed: %s", class_name);
6725 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 }
20389 622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	818 fclose(file);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	819 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	820 char errmsg[JVM_MAXPATHLEN];
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	821 os::lasterror(errmsg, JVM_MAXPATHLEN);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	822 tty->print_cr("Loading classlist failed: %s", errmsg);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	823 exit(1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	824 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	825
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	826 return class_count;
6725 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
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	829 // Returns true if the class's status has changed
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	830 bool MetaspaceShared::try_link_class(InstanceKlass* ik, TRAPS) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	831 assert(DumpSharedSpaces, "should only be called during dumping");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	832 if (ik->init_state() < InstanceKlass::linked) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	833 bool saved = BytecodeVerificationLocal;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	834 if (!SharedClassUtil::is_shared_boot_class(ik)) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	835 // The verification decision is based on BytecodeVerificationRemote
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	836 // for non-system classes. Since we are using the NULL classloader
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	837 // to load non-system classes during dumping, we need to temporarily
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	838 // change BytecodeVerificationLocal to be the same as
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	839 // BytecodeVerificationRemote. Note this can cause the parent system
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	840 // classes also being verified. The extra overhead is acceptable during
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	841 // dumping.
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	842 BytecodeVerificationLocal = BytecodeVerificationRemote;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	843 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	844 ik->link_class(THREAD);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	845 if (HAS_PENDING_EXCEPTION) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	846 ResourceMark rm;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	847 tty->print_cr("Preload Error: Verification failed for %s",
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	848 ik->external_name());
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	849 CLEAR_PENDING_EXCEPTION;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	850 ik->set_in_error_state();
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	851 _has_error_classes = true;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	852 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	853 BytecodeVerificationLocal = saved;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	854 return true;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	855 } else {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	856 return false;
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	857 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	858 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	859
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	860 // 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	861 // (ptr_array) read from the shared file.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	862
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	863 class ReadClosure : public SerializeClosure {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	864 private:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	865 intptr_t** _ptr_array;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	866
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	867 inline intptr_t nextPtr() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	868 return (_ptr_array)++;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	869 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	870
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	871 public:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	872 ReadClosure(intptr_t** ptr_array) { _ptr_array = ptr_array; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	873
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	874 void do_ptr(void** p) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	875 assert(*p == NULL, "initializing previous initialized pointer.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	876 intptr_t obj = nextPtr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	877 assert((intptr_t)obj >= 0 \|\| (intptr_t)obj < -100,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	878 "hit tag while initializing ptrs.");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	879 p = (void)obj;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	880 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	881
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	882 void do_tag(int tag) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	883 int old_tag;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	884 old_tag = (int)(intptr_t)nextPtr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	885 // do_int(&old_tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	886 assert(tag == old_tag, "old tag doesn't match");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	887 FileMapInfo::assert_mark(tag == old_tag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	888 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	889
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	890 void do_region(u_char* start, size_t size) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	891 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	892 assert(size % sizeof(intptr_t) == 0, "bad size");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	893 do_tag((int)size);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	894 while (size > 0) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	895 (intptr_t)start = nextPtr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	896 start += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	897 size -= sizeof(intptr_t);
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	900
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	901 bool reading() const { return true; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	902 };
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	903
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	904 // 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	905 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	906 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	907 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	908
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	909 void MetaspaceShared::print_shared_spaces() {
11056 221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	910 if (UseSharedSpaces) {
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	911 FileMapInfo::current_info()->print_shared_spaces();
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	912 }
6725 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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	915
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	916 // 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	917 // 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	918 // call, or is_in_shared_space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	919 bool MetaspaceShared::map_shared_spaces(FileMapInfo* mapinfo) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	920 size_t image_alignment = mapinfo->alignment();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	921
7460 6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	922 #ifndef _WINDOWS
6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	923 // 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	924 // 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	925 // mappings of the regions to fail.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	926 ReservedSpace shared_rs = mapinfo->reserve_shared_memory();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	927 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	928 #endif
6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	929
6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	930 assert(!DumpSharedSpaces, "Should not be called with DumpSharedSpaces");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	931
11056 221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	932 char* _ro_base = NULL;
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	933 char* _rw_base = NULL;
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	934 char* _md_base = NULL;
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	935 char* _mc_base = NULL;
221df7e37535 8016075: Win32 crash with CDS enabled and small heap size iklam parents: 10376 diff changeset	936
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	937 // Map each shared region
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	938 if ((_ro_base = mapinfo->map_region(ro)) != NULL &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	939 (_rw_base = mapinfo->map_region(rw)) != NULL &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	940 (_md_base = mapinfo->map_region(md)) != NULL &&
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	941 (_mc_base = mapinfo->map_region(mc)) != NULL &&
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	942 (image_alignment == (size_t)max_alignment()) &&
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	943 mapinfo->validate_classpath_entry_table()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	944 // Success (no need to do anything)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	945 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	946 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	947 // 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	948 // that succeeded
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	949 if (_ro_base != NULL) mapinfo->unmap_region(ro);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	950 if (_rw_base != NULL) mapinfo->unmap_region(rw);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	951 if (_md_base != NULL) mapinfo->unmap_region(md);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	952 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	953 #ifndef _WINDOWS
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	954 // Release the entire mapped region
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	955 shared_rs.release();
7460 6c3f47d964f3 8003705: CDS failed on Windows: can not map in the CDS. hseigel parents: 6983 diff changeset	956 #endif
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	957 // 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	958 // otherwise, set UseSharedSpaces to false and continue.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	959 if (RequireSharedSpaces) {
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	960 vm_exit_during_initialization("Unable to use shared archive.", "Failed map_region for using -Xshare:on.");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	961 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	962 FLAG_SET_DEFAULT(UseSharedSpaces, false);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	963 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	964 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	965 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	966 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	967
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	968 // Read the miscellaneous data from the shared file, and
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	969 // serialize it out to its various destinations.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	970
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	971 void MetaspaceShared::initialize_shared_spaces() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	972 FileMapInfo *mapinfo = FileMapInfo::current_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	973
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	974 char* buffer = mapinfo->region_base(md);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	975
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	976 // 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	977 // for Klass objects. They get filled in later.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	978
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	979 void vtbl_list = (void)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	980 buffer += MetaspaceShared::vtbl_list_size * sizeof(void*);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	981 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	982
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	983 // 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	984 // They are used as is.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	985
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	986 intptr_t vtable_size = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	987 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	988 buffer += vtable_size;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	989
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	990 // 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	991 // 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	992 // region (of mapped pages) will be copy-on-write.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	993
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	994 int symbolTableLen = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	995 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	996 int number_of_entries = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	997 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	998 SymbolTable::create_table((HashtableBucket<mtSymbol>*)buffer, symbolTableLen,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	999 number_of_entries);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1000 buffer += symbolTableLen;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1001
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1002 // 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	1003 // 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	1004 // 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	1005 // not explicitly) read-only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1006
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1007 int sharedDictionaryLen = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1008 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1009 number_of_entries = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1010 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1011 SystemDictionary::set_shared_dictionary((HashtableBucket<mtClass>*)buffer,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1012 sharedDictionaryLen,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1013 number_of_entries);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1014 buffer += sharedDictionaryLen;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1015
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1016 // 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	1017 // 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	1018 // 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	1019 // not explicitly) read-only.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1020
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1021 int pkgInfoLen = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1022 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1023 number_of_entries = (intptr_t)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1024 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1025 ClassLoader::create_package_info_table((HashtableBucket<mtClass>*)buffer, pkgInfoLen,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1026 number_of_entries);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1027 buffer += pkgInfoLen;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1028 ClassLoader::verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1029
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1030 // 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	1031 // list elements (HashtableEntry objects) for the symbol table, string
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1032 // 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	1033 // 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	1034 // 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	1035 // 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	1036 // LIST ELEMENTS ARE READ-ONLY.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1037
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1038 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	1039 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1040 buffer += len;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1041
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1042 len = (intptr_t)buffer; // skip over shared dictionary entries
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1043 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1044 buffer += len;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1045
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1046 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	1047 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1048 buffer += len;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1049
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1050 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	1051 buffer += sizeof(intptr_t);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1052 buffer += len;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1053
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1054 intptr_t* array = (intptr_t*)buffer;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1055 ReadClosure rc(&array);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1056 serialize(&rc);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1057
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1058 // Close the mapinfo file
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1059 mapinfo->close();
20375 6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1060
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1061 if (PrintSharedArchiveAndExit) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1062 if (PrintSharedDictionary) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1063 tty->print_cr("\nShared classes:\n");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1064 SystemDictionary::print_shared(false);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1065 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1066 if (_archive_loading_failed) {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1067 tty->print_cr("archive is invalid");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1068 vm_exit(1);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1069 } else {
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1070 tty->print_cr("archive is valid");
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1071 vm_exit(0);
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1072 }
6e0cb14ce59b 8046070: Class Data Sharing clean up and refactoring iklam parents: 17937 diff changeset	1073 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1074 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1075
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1076 // JVM/TI RedefineClasses() support:
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1077 bool MetaspaceShared::remap_shared_readonly_as_readwrite() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1078 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1079
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1080 if (UseSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1081 // remap the shared readonly space to shared readwrite, private
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1082 FileMapInfo* mapinfo = FileMapInfo::current_info();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1083 if (!mapinfo->remap_shared_readonly_as_readwrite()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1084 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1085 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1086 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1087 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1088 }
20389 622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1089
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1090 int MetaspaceShared::count_class(const char* classlist_file) {
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1091 if (classlist_file == NULL) {
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1092 return 0;
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1093 }
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1094 char class_name[256];
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1095 int class_count = 0;
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1096 FILE* file = fopen(classlist_file, "r");
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1097 if (file != NULL) {
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1098 while ((fgets(class_name, sizeof class_name, file)) != NULL) {
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1099 if (*class_name == '#') { // comment
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1100 continue;
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1101 }
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1102 class_count++;
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1103 }
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1104 fclose(file);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1105 } else {
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1106 char errmsg[JVM_MAXPATHLEN];
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1107 os::lasterror(errmsg, JVM_MAXPATHLEN);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1108 tty->print_cr("Loading classlist failed: %s", errmsg);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1109 exit(1);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1110 }
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1111
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1112 return class_count;
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1113 }
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1114
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1115 // the sizes are good for typical large applications that have a lot of shared
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1116 // classes
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1117 void MetaspaceShared::estimate_regions_size() {
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1118 int class_count = count_class(SharedClassListFile);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1119 class_count += count_class(ExtraSharedClassListFile);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1120
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1121 if (class_count > LargeThresholdClassCount) {
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1122 if (class_count < HugeThresholdClassCount) {
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1123 SET_ESTIMATED_SIZE(Large, ReadOnly);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1124 SET_ESTIMATED_SIZE(Large, ReadWrite);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1125 SET_ESTIMATED_SIZE(Large, MiscData);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1126 SET_ESTIMATED_SIZE(Large, MiscCode);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1127 } else {
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1128 SET_ESTIMATED_SIZE(Huge, ReadOnly);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1129 SET_ESTIMATED_SIZE(Huge, ReadWrite);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1130 SET_ESTIMATED_SIZE(Huge, MiscData);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1131 SET_ESTIMATED_SIZE(Huge, MiscCode);
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1132 }
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1133 }
622c6e0ad4d6 8048150: Allow easy configurations for large CDS archives ccheung parents: 20375 diff changeset	1134 }

Mercurial > hg > truffle

annotate src/share/vm/memory/metaspaceShared.cpp @ 20389:622c6e0ad4d6