truffle: src/share/vm/classfile/classLoaderData.cpp annotate

annotate src/share/vm/classfile/classLoaderData.cpp @ 10181:1cb4795305b9

8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD Summary: Restructure initialization of ClassLoaderData to not add a new instance if init_dependencies fail Reviewed-by: stefank, coleenp

author	mgerdin
date	Tue, 23 Apr 2013 08:39:55 +0200
parents	c23dbf0e8ab7
children	868d87ed63c8

rev	line source
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1 /*
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7614 diff changeset	2 * Copyright (c) 2012, 2013, 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 // A ClassLoaderData identifies the full set of class types that a class
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	26 // loader's name resolution strategy produces for a given configuration of the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	27 // class loader.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	28 // Class types in the ClassLoaderData may be defined by from class file binaries
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	29 // provided by the class loader, or from other class loader it interacts with
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	30 // according to its name resolution strategy.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	31 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	32 // Class loaders that implement a deterministic name resolution strategy
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	33 // (including with respect to their delegation behavior), such as the boot, the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	34 // extension, and the system loaders of the JDK's built-in class loader
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	35 // hierarchy, always produce the same linkset for a given configuration.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	36 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	37 // ClassLoaderData carries information related to a linkset (e.g.,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	38 // metaspace holding its klass definitions).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	39 // The System Dictionary and related data structures (e.g., placeholder table,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	40 // loader constraints table) as well as the runtime representation of classes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	41 // only reference ClassLoaderData.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	42 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	43 // Instances of java.lang.ClassLoader holds a pointer to a ClassLoaderData that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	44 // that represent the loader's "linking domain" in the JVM.
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 // The bootstrap loader (represented by NULL) also has a ClassLoaderData,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	47 // the singleton class the_null_class_loader_data().
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	48
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	49 #include "precompiled.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	50 #include "classfile/classLoaderData.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	51 #include "classfile/classLoaderData.inline.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	52 #include "classfile/javaClasses.hpp"
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7614 diff changeset	53 #include "classfile/metadataOnStackMark.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	54 #include "classfile/systemDictionary.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	55 #include "code/codeCache.hpp"
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	56 #include "memory/gcLocker.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	57 #include "memory/metadataFactory.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	58 #include "memory/metaspaceShared.hpp"
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7614 diff changeset	59 #include "memory/oopFactory.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	60 #include "runtime/jniHandles.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	61 #include "runtime/mutex.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	62 #include "runtime/safepoint.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	63 #include "runtime/synchronizer.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	64 #include "utilities/growableArray.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	65 #include "utilities/ostream.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	66
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	67 ClassLoaderData * ClassLoaderData::_the_null_class_loader_data = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	68
7409 30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	69 ClassLoaderData::ClassLoaderData(Handle h_class_loader, bool is_anonymous) :
30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	70 _class_loader(h_class_loader()),
30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	71 _is_anonymous(is_anonymous), _keep_alive(is_anonymous), // initially
30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	72 _metaspace(NULL), _unloading(false), _klasses(NULL),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	73 _claimed(0), _jmethod_ids(NULL), _handles(NULL), _deallocate_list(NULL),
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	74 _next(NULL), _dependencies(),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	75 _metaspace_lock(new Mutex(Monitor::leaf+1, "Metaspace allocation lock", true)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	76 // empty
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	77 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	78
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	79 void ClassLoaderData::init_dependencies(TRAPS) {
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	80 _dependencies.init(CHECK);
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	81 }
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	82
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	83 void ClassLoaderData::Dependencies::init(TRAPS) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	84 // Create empty dependencies array to add to. CMS requires this to be
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	85 // an oop so that it can track additions via card marks. We think.
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	86 _list_head = oopFactory::new_objectArray(2, CHECK);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	87 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	88
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	89 bool ClassLoaderData::claim() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	90 if (_claimed == 1) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	91 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	92 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	93
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	94 return (int) Atomic::cmpxchg(1, &_claimed, 0) == 0;
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 void ClassLoaderData::oops_do(OopClosure* f, KlassClosure* klass_closure, bool must_claim) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	98 if (must_claim && !claim()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	99 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	100 }
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 f->do_oop(&_class_loader);
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	103 _dependencies.oops_do(f);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	104 _handles->oops_do(f);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	105 if (klass_closure != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	106 classes_do(klass_closure);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	107 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	108 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	109
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	110 void ClassLoaderData::Dependencies::oops_do(OopClosure* f) {
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	111 f->do_oop((oop*)&_list_head);
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	112 }
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	113
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	114 void ClassLoaderData::classes_do(KlassClosure* klass_closure) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 klass_closure->do_klass(k);
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	117 assert(k != k->next_link(), "no loops!");
6725 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 void ClassLoaderData::classes_do(void f(InstanceKlass*)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	122 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	123 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	124 f(InstanceKlass::cast(k));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	125 }
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	126 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	127 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	128 }
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 void ClassLoaderData::record_dependency(Klass* k, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	131 ClassLoaderData * const from_cld = this;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	132 ClassLoaderData * const to_cld = k->class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	133
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	134 // Dependency to the null class loader data doesn't need to be recorded
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	135 // because the null class loader data never goes away.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	136 if (to_cld->is_the_null_class_loader_data()) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	137 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	138 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	139
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	140 oop to;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	141 if (to_cld->is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	142 // Anonymous class dependencies are through the mirror.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	143 to = k->java_mirror();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	144 } else {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	145 to = to_cld->class_loader();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	146
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	147 // If from_cld is anonymous, even if it's class_loader is a parent of 'to'
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	148 // we still have to add it. The class_loader won't keep from_cld alive.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	149 if (!from_cld->is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	150 // Check that this dependency isn't from the same or parent class_loader
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	151 oop from = from_cld->class_loader();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	152
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	153 oop curr = from;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	154 while (curr != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	155 if (curr == to) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	156 return; // this class loader is in the parent list, no need to add it.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	157 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	158 curr = java_lang_ClassLoader::parent(curr);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	159 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	160 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	161 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	162
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	163 // It's a dependency we won't find through GC, add it. This is relatively rare
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	164 // Must handle over GC point.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	165 Handle dependency(THREAD, to);
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	166 from_cld->_dependencies.add(dependency, CHECK);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	167 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	168
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	169
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	170 void ClassLoaderData::Dependencies::add(Handle dependency, TRAPS) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	171 // Check first if this dependency is already in the list.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	172 // Save a pointer to the last to add to under the lock.
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	173 objArrayOop ok = _list_head;
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	174 objArrayOop last = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	175 while (ok != NULL) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	176 last = ok;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	177 if (ok->obj_at(0) == dependency()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	178 // Don't need to add it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	179 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	180 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	181 ok = (objArrayOop)ok->obj_at(1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	182 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	183
7417 1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	184 // Must handle over GC points
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	185 assert (last != NULL, "dependencies should be initialized");
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	186 objArrayHandle last_handle(THREAD, last);
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	187
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	188 // Create a new dependency node with fields for (class_loader or mirror, next)
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	189 objArrayOop deps = oopFactory::new_objectArray(2, CHECK);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	190 deps->obj_at_put(0, dependency());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	191
7417 1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	192 // Must handle over GC points
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	193 objArrayHandle new_dependency(THREAD, deps);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	194
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	195 // Add the dependency under lock
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	196 locked_add(last_handle, new_dependency, THREAD);
6725 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
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	199 void ClassLoaderData::Dependencies::locked_add(objArrayHandle last_handle,
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	200 objArrayHandle new_dependency,
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	201 Thread* THREAD) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	202
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	203 // Have to lock and put the new dependency on the end of the dependency
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	204 // array so the card mark for CMS sees that this dependency is new.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	205 // Can probably do this lock free with some effort.
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	206 ObjectLocker ol(Handle(THREAD, _list_head), THREAD);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	207
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	208 oop loader_or_mirror = new_dependency->obj_at(0);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	209
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	210 // Since the dependencies are only added, add to the end.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	211 objArrayOop end = last_handle();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	212 objArrayOop last = NULL;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	213 while (end != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	214 last = end;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	215 // check again if another thread added it to the end.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	216 if (end->obj_at(0) == loader_or_mirror) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	217 // Don't need to add it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	218 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	219 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	220 end = (objArrayOop)end->obj_at(1);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	221 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	222 assert (last != NULL, "dependencies should be initialized");
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	223 // fill in the first element with the oop in new_dependency.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	224 if (last->obj_at(0) == NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	225 last->obj_at_put(0, new_dependency->obj_at(0));
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	226 } else {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	227 last->obj_at_put(1, new_dependency());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	228 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	229 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	230
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	231 void ClassLoaderDataGraph::clear_claimed_marks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	232 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	233 cld->clear_claimed();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	234 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	235 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	236
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	237 void ClassLoaderData::add_class(Klass* k) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	238 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	239 Klass* old_value = _klasses;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	240 k->set_next_link(old_value);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	241 // link the new item into the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	242 _klasses = k;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	243
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	244 if (TraceClassLoaderData && Verbose && k->class_loader_data() != NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	245 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	246 tty->print_cr("[TraceClassLoaderData] Adding k: " PTR_FORMAT " %s to CLD: "
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	247 PTR_FORMAT " loader: " PTR_FORMAT " %s",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	248 k,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	249 k->external_name(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	250 k->class_loader_data(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	251 k->class_loader(),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	252 loader_name());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	253 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	254 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	255
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	256 // This is called by InstanceKlass::deallocate_contents() to remove the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	257 // scratch_class for redefine classes. We need a lock because there it may not
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	258 // be called at a safepoint if there's an error.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	259 void ClassLoaderData::remove_class(Klass* scratch_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	260 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	261 Klass* prev = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	262 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	263 if (k == scratch_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	264 if (prev == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	265 _klasses = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	266 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	267 Klass* next = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	268 prev->set_next_link(next);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	269 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	270 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	271 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	272 prev = k;
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	273 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	274 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	275 ShouldNotReachHere(); // should have found this class!!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	276 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	277
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	278 void ClassLoaderData::unload() {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	279 _unloading = true;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	280
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	281 if (TraceClassLoaderData) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	282 ResourceMark rm;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	283 tty->print("[ClassLoaderData: unload loader data "PTR_FORMAT, this);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	284 tty->print(" for instance "PTR_FORMAT" of %s", class_loader(),
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	285 loader_name());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	286 if (is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	287 tty->print(" for anonymous class "PTR_FORMAT " ", _klasses);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	288 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	289 tty->print_cr("]");
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	290 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	291 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	292
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	293 bool ClassLoaderData::is_alive(BoolObjectClosure* is_alive_closure) const {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	294 bool alive =
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	295 is_anonymous() ?
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	296 is_alive_closure->do_object_b(_klasses->java_mirror()) :
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	297 class_loader() == NULL \|\| is_alive_closure->do_object_b(class_loader());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	298 assert(!alive \|\| claimed(), "must be claimed");
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	299 return alive;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	300 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	301
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	302
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	303 ClassLoaderData::~ClassLoaderData() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	304 Metaspace *m = _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	305 if (m != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	306 _metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	307 // release the metaspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	308 delete m;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	309 // release the handles
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	310 if (_handles != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	311 JNIHandleBlock::release_block(_handles);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	312 _handles = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	313 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	314 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	315
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	316 // Clear all the JNI handles for methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	317 // These aren't deallocated and are going to look like a leak, but that's
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	318 // needed because we can't really get rid of jmethodIDs because we don't
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	319 // know when native code is going to stop using them. The spec says that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	320 // they're "invalid" but existing programs likely rely on their being
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	321 // NULL after class unloading.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	322 if (_jmethod_ids != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	323 Method::clear_jmethod_ids(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	324 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	325 // Delete lock
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	326 delete _metaspace_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	327
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	328 // Delete free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	329 if (_deallocate_list != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	330 delete _deallocate_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	331 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	332 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	333
8866 16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	334 /**
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	335 * Returns true if this class loader data is for the extension class loader.
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	336 */
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	337 bool ClassLoaderData::is_ext_class_loader_data() const {
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	338 return SystemDictionary::is_ext_class_loader(class_loader());
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	339 }
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	340
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	341 Metaspace* ClassLoaderData::metaspace_non_null() {
7614 59a58e20dc60 8006537: Assert when dumping archive with default methods jmasa parents: 7446 diff changeset	342 assert(!DumpSharedSpaces, "wrong metaspace!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	343 // If the metaspace has not been allocated, create a new one. Might want
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	344 // to create smaller arena for Reflection class loaders also.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	345 // The reason for the delayed allocation is because some class loaders are
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	346 // simply for delegating with no metadata of their own.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	347 if (_metaspace == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	348 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	349 // Check again if metaspace has been allocated while we were getting this lock.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	350 if (_metaspace != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	351 return _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	352 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	353 if (this == the_null_class_loader_data()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	354 assert (class_loader() == NULL, "Must be");
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	355 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::BootMetaspaceType));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	356 } else if (is_anonymous()) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	357 if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	358 tty->print_cr("is_anonymous: %s", class_loader()->klass()->internal_name());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	359 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	360 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::AnonymousMetaspaceType));
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	361 } else if (class_loader()->is_a(SystemDictionary::reflect_DelegatingClassLoader_klass())) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	362 if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	363 tty->print_cr("is_reflection: %s", class_loader()->klass()->internal_name());
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	364 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	365 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::ReflectionMetaspaceType));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	366 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	367 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::StandardMetaspaceType));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	368 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	369 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	370 return _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	371 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	372
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	373 JNIHandleBlock* ClassLoaderData::handles() const { return _handles; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	374 void ClassLoaderData::set_handles(JNIHandleBlock* handles) { _handles = handles; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	375
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	376 jobject ClassLoaderData::add_handle(Handle h) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	377 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	378 if (handles() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	379 set_handles(JNIHandleBlock::allocate_block());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	380 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	381 return handles()->allocate_handle(h());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	382 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	383
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	384 // Add this metadata pointer to be freed when it's safe. This is only during
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	385 // class unloading because Handles might point to this metadata field.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	386 void ClassLoaderData::add_to_deallocate_list(Metadata* m) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	387 // Metadata in shared region isn't deleted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	388 if (!m->is_shared()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	389 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	390 if (_deallocate_list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	391 _deallocate_list = new (ResourceObj::C_HEAP, mtClass) GrowableArray<Metadata*>(100, true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	392 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	393 _deallocate_list->append_if_missing(m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	394 }
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	397 // Deallocate free metadata on the free list. How useful the PermGen was!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	398 void ClassLoaderData::free_deallocate_list() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	399 // Don't need lock, at safepoint
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	400 assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	401 if (_deallocate_list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	402 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	403 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	404 // Go backwards because this removes entries that are freed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	405 for (int i = _deallocate_list->length() - 1; i >= 0; i--) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	406 Metadata* m = _deallocate_list->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	407 if (!m->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	408 _deallocate_list->remove_at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	409 // There are only three types of metadata that we deallocate directly.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	410 // Cast them so they can be used by the template function.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	411 if (m->is_method()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	412 MetadataFactory::free_metadata(this, (Method*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	413 } else if (m->is_constantPool()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	414 MetadataFactory::free_metadata(this, (ConstantPool*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	415 } else if (m->is_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	416 MetadataFactory::free_metadata(this, (InstanceKlass*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	417 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	418 ShouldNotReachHere();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	419 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	420 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	421 }
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
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	424 // These anonymous class loaders are to contain classes used for JSR292
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	425 ClassLoaderData* ClassLoaderData::anonymous_class_loader_data(oop loader, TRAPS) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	426 // Add a new class loader data to the graph.
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	427 return ClassLoaderDataGraph::add(loader, true, CHECK_NULL);
6725 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
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	430 const char* ClassLoaderData::loader_name() {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	431 // Handles null class loader
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	432 return SystemDictionary::loader_name(class_loader());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	433 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	434
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	435 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	436 // Define to dump klasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437 #undef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	438
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	439 void ClassLoaderData::dump(outputStream * const out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	441 out->print("ClassLoaderData CLD: "PTR_FORMAT", loader: "PTR_FORMAT", loader_klass: "PTR_FORMAT" %s {",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	442 this, class_loader(),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	443 class_loader() != NULL ? class_loader()->klass() : NULL, loader_name());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444 if (claimed()) out->print(" claimed ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	445 if (is_unloading()) out->print(" unloading ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	446 out->print(" handles " INTPTR_FORMAT, handles());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	447 out->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	448 if (metaspace_or_null() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	449 out->print_cr("metaspace: " PTR_FORMAT, metaspace_or_null());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	450 metaspace_or_null()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	451 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	452 out->print_cr("metaspace: NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	453 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	454
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	455 #ifdef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	456 if (Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	457 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	458 Klass* k = _klasses;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	459 while (k != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	460 out->print_cr("klass "PTR_FORMAT", %s, CT: %d, MUT: %d", k, k->name()->as_C_string(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	461 k->has_modified_oops(), k->has_accumulated_modified_oops());
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	462 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	463 k = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	464 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	465 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	466 #endif // CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	467 #undef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	468 if (_jmethod_ids != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	469 Method::print_jmethod_ids(this, out);
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 out->print_cr("}");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	472 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	473 #endif // PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	474
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	475 void ClassLoaderData::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	476 oop cl = class_loader();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	477
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	478 guarantee(this == class_loader_data(cl) \|\| is_anonymous(), "Must be the same");
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	479 guarantee(cl != NULL \|\| this == ClassLoaderData::the_null_class_loader_data() \|\| is_anonymous(), "must be");
6725 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 // Verify the integrity of the allocated space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 if (metaspace_or_null() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483 metaspace_or_null()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	484 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	485
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	487 guarantee(k->class_loader_data() == this, "Must be the same");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	488 k->verify();
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	489 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	490 }
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
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	493
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	494 // GC root of class loader data created.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	495 ClassLoaderData* ClassLoaderDataGraph::_head = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	496 ClassLoaderData* ClassLoaderDataGraph::_unloading = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	497 ClassLoaderData* ClassLoaderDataGraph::_saved_head = NULL;
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 // Add a new class loader data node to the list. Assign the newly created
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	500 // ClassLoaderData into the java/lang/ClassLoader object as a hidden field
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	501 ClassLoaderData* ClassLoaderDataGraph::add(Handle loader, bool is_anonymous, TRAPS) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	502 // Not assigned a class loader data yet.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503 // Create one.
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	504 ClassLoaderData* cld = new ClassLoaderData(loader, is_anonymous);
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	505 cld->init_dependencies(THREAD);
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	506 if (HAS_PENDING_EXCEPTION) {
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	507 delete cld;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	508 return NULL;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	509 }
7409 30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	510
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	511 No_Safepoint_Verifier no_safepoints; // nothing is keeping the dependencies array in cld alive
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	512 // make sure we don't encounter a GC until we've inserted
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	513 // cld into the CLDG
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	514
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	515 if (!is_anonymous) {
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	516 ClassLoaderData** cld_addr = java_lang_ClassLoader::loader_data_addr(loader());
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	517 if (cld_addr != NULL) {
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	518 // First, Atomically set it
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	519 ClassLoaderData* old = (ClassLoaderData*) Atomic::cmpxchg_ptr(cld, cld_addr, NULL);
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	520 if (old != NULL) {
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	521 delete cld;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	522 // Returns the data.
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	523 return old;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	524 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	525 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	526 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	527
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	528 // We won the race, and therefore the task of adding the data to the list of
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	529 // class loader data
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	530 ClassLoaderData** list_head = &_head;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	531 ClassLoaderData* next = _head;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	532
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	533 do {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	534 cld->set_next(next);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	535 ClassLoaderData* exchanged = (ClassLoaderData*)Atomic::cmpxchg_ptr(cld, list_head, next);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	536 if (exchanged == next) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	537 if (TraceClassLoaderData) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	538 ResourceMark rm;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	539 tty->print("[ClassLoaderData: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	540 tty->print("create class loader data "PTR_FORMAT, cld);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	541 tty->print(" for instance "PTR_FORMAT" of %s", cld->class_loader(),
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	542 cld->loader_name());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	543 tty->print_cr("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	544 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	545 return cld;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	546 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	547 next = exchanged;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	548 } while (true);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	549
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	550 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	551
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	552 void ClassLoaderDataGraph::oops_do(OopClosure* f, KlassClosure* klass_closure, bool must_claim) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	553 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	554 cld->oops_do(f, klass_closure, must_claim);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	555 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	556 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	557
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	558 void ClassLoaderDataGraph::keep_alive_oops_do(OopClosure* f, KlassClosure* klass_closure, bool must_claim) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	559 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	560 if (cld->keep_alive()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	561 cld->oops_do(f, klass_closure, must_claim);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	562 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	563 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	564 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	565
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	566 void ClassLoaderDataGraph::always_strong_oops_do(OopClosure* f, KlassClosure* klass_closure, bool must_claim) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	567 if (ClassUnloading) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	568 ClassLoaderData::the_null_class_loader_data()->oops_do(f, klass_closure, must_claim);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	569 // keep any special CLDs alive.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	570 ClassLoaderDataGraph::keep_alive_oops_do(f, klass_closure, must_claim);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	571 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572 ClassLoaderDataGraph::oops_do(f, klass_closure, must_claim);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	573 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	574 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	575
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	576 void ClassLoaderDataGraph::classes_do(KlassClosure* klass_closure) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	577 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	578 cld->classes_do(klass_closure);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	579 }
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	582 GrowableArray<ClassLoaderData> ClassLoaderDataGraph::new_clds() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	583 assert(_head == NULL \|\| _saved_head != NULL, "remember_new_clds(true) not called?");
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 GrowableArray<ClassLoaderData> array = new GrowableArray<ClassLoaderData*>();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	586
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	587 // The CLDs in [_head, _saved_head] were all added during last call to remember_new_clds(true);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	588 ClassLoaderData* curr = _head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589 while (curr != _saved_head) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	590 if (!curr->claimed()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	591 array->push(curr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	592
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	593 if (TraceClassLoaderData) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	594 tty->print("[ClassLoaderData] found new CLD: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	595 curr->print_value_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	596 tty->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	597 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	598 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	599
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	600 curr = curr->_next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	601 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	602
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	603 return array;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	604 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	605
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	606 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	607 // for debugging and hsfind(x)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	608 bool ClassLoaderDataGraph::contains(address x) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	609 // I think we need the _metaspace_lock taken here because the class loader
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	610 // data graph could be changing while we are walking it (new entries added,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	611 // new entries being unloaded, etc).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	612 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	613 // There are only two metaspaces to worry about.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	614 ClassLoaderData* ncld = ClassLoaderData::the_null_class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 return (ncld->ro_metaspace()->contains(x) \|\| ncld->rw_metaspace()->contains(x));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	617
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618 if (UseSharedSpaces && MetaspaceShared::is_in_shared_space(x)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	621
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623 if (cld->metaspace_or_null() != NULL && cld->metaspace_or_null()->contains(x)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	625 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	626 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	627
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	628 // Could also be on an unloading list which is okay, ie. still allocated
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	629 // for a little while.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	630 for (ClassLoaderData* ucld = _unloading; ucld != NULL; ucld = ucld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	631 if (ucld->metaspace_or_null() != NULL && ucld->metaspace_or_null()->contains(x)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	632 return true;
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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	635 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	636 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	637
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	638 bool ClassLoaderDataGraph::contains_loader_data(ClassLoaderData* loader_data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	640 if (loader_data == data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	641 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	642 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	643 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	644
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	645 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	646 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	647 #endif // PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	648
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	649
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	650 // Move class loader data from main list to the unloaded list for unloading
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	651 // and deallocation later.
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	652 bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	653 ClassLoaderData* data = _head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	654 ClassLoaderData* prev = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	655 bool seen_dead_loader = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	656 // mark metadata seen on the stack and code cache so we can delete
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	657 // unneeded entries.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	658 bool has_redefined_a_class = JvmtiExport::has_redefined_a_class();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	659 MetadataOnStackMark md_on_stack;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	660 while (data != NULL) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	661 if (data->keep_alive() \|\| data->is_alive(is_alive_closure)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	662 if (has_redefined_a_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	663 data->classes_do(InstanceKlass::purge_previous_versions);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	664 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	665 data->free_deallocate_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	666 prev = data;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	667 data = data->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	668 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	669 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	670 seen_dead_loader = true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	671 ClassLoaderData* dead = data;
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	672 dead->unload();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	673 data = data->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	674 // Remove from loader list.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	675 if (prev != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	676 prev->set_next(data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	677 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	678 assert(dead == _head, "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	679 _head = data;
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 dead->set_next(_unloading);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	682 _unloading = dead;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	683 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	684 return seen_dead_loader;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	685 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	686
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	687 void ClassLoaderDataGraph::purge() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	688 ClassLoaderData* list = _unloading;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	689 _unloading = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	690 ClassLoaderData* next = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	691 while (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	692 ClassLoaderData* purge_me = next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	693 next = purge_me->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	694 delete purge_me;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	695 }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 9075 diff changeset	696 Metaspace::purge();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	697 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	698
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	699 // CDS support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	700
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	701 // Global metaspaces for writing information to the shared archive. When
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	702 // application CDS is supported, we may need one per metaspace, so this
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	703 // sort of looks like it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	704 Metaspace* ClassLoaderData::_ro_metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	705 Metaspace* ClassLoaderData::_rw_metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	706 static bool _shared_metaspaces_initialized = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	707
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	708 // Initialize shared metaspaces (change to call from somewhere not lazily)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	709 void ClassLoaderData::initialize_shared_metaspaces() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	710 assert(DumpSharedSpaces, "only use this for dumping shared spaces");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	711 assert(this == ClassLoaderData::the_null_class_loader_data(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	712 "only supported for null loader data for now");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	713 assert (!_shared_metaspaces_initialized, "only initialize once");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	714 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	715 _ro_metaspace = new Metaspace(_metaspace_lock, Metaspace::ROMetaspaceType);
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	716 _rw_metaspace = new Metaspace(_metaspace_lock, Metaspace::ReadWriteMetaspaceType);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	717 _shared_metaspaces_initialized = true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	718 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	719
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	720 Metaspace* ClassLoaderData::ro_metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721 assert(_ro_metaspace != NULL, "should already be initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	722 return _ro_metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	723 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	724
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	725 Metaspace* ClassLoaderData::rw_metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	726 assert(_rw_metaspace != NULL, "should already be initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	727 return _rw_metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	728 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	729
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	730
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	731 ClassLoaderDataGraphMetaspaceIterator::ClassLoaderDataGraphMetaspaceIterator() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	732 _data = ClassLoaderDataGraph::_head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	733 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	734
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	735 ClassLoaderDataGraphMetaspaceIterator::~ClassLoaderDataGraphMetaspaceIterator() {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	736
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	737 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	738 // callable from debugger
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	739 extern "C" int print_loader_data_graph() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	740 ClassLoaderDataGraph::dump_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	741 return 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	742 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	743
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	744 void ClassLoaderDataGraph::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	745 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	746 data->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	747 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	748 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	749
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	750 void ClassLoaderDataGraph::dump_on(outputStream * const out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	751 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	752 data->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	753 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	754 MetaspaceAux::dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	755 }
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	756 #endif // PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	757
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	758 void ClassLoaderData::print_value_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	759 if (class_loader() == NULL) {
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	760 out->print("NULL class_loader");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	761 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	762 out->print("class loader "PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	763 class_loader()->print_value_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	764 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	765 }

Mercurial > hg > truffle

annotate src/share/vm/classfile/classLoaderData.cpp @ 10181:1cb4795305b9