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

annotate src/share/vm/classfile/classLoaderData.cpp @ 20762:c2844108a708

Merge

author	asaha
date	Thu, 23 Oct 2014 12:02:08 -0700
parents	2c6ef90f030a
children	b12a2a9b05ca

rev	line source
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1 /*
17674 85318d1fe8fe 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 17663 diff changeset	2 * Copyright (c) 2012, 2014, Oracle and/or its affiliates. All rights reserved.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	4 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	7 * published by the Free Software Foundation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	8 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	13 * accompanied this code).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	14 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	18 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	21 * questions.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	22 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	23 */
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	24
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	25 // 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"
13400 86e6d691f2e1 8028128: Add a type safe alternative for working with counter based data mgronlun parents: 12995 diff changeset	65 #include "utilities/macros.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	66 #include "utilities/ostream.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	67
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	68 #if INCLUDE_TRACE
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	69 #include "trace/tracing.hpp"
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	70 #endif
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	71
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	72 ClassLoaderData * ClassLoaderData::_the_null_class_loader_data = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	73
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	74 ClassLoaderData::ClassLoaderData(Handle h_class_loader, bool is_anonymous, Dependencies dependencies) :
7409 30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	75 _class_loader(h_class_loader()),
20260 556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	76 _is_anonymous(is_anonymous),
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	77 // An anonymous class loader data doesn't have anything to keep
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	78 // it from being unloaded during parsing of the anonymous class.
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	79 // The null-class-loader should always be kept alive.
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	80 _keep_alive(is_anonymous \|\| h_class_loader.is_null()),
7409 30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	81 _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	82 _claimed(0), _jmethod_ids(NULL), _handles(NULL), _deallocate_list(NULL),
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	83 _next(NULL), _dependencies(dependencies),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	84 _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	85 // empty
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	86 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	87
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	88 void ClassLoaderData::init_dependencies(TRAPS) {
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	89 assert(!Universe::is_fully_initialized(), "should only be called when initializing");
9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	90 assert(is_the_null_class_loader_data(), "should only call this for the null class loader");
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	91 _dependencies.init(CHECK);
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	92 }
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	93
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	94 void ClassLoaderData::Dependencies::init(TRAPS) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	95 // 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	96 // 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	97 _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	98 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	99
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	100 bool ClassLoaderData::claim() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	101 if (_claimed == 1) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	102 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	103 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	104
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	105 return (int) Atomic::cmpxchg(1, &_claimed, 0) == 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	106 }
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 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	109 if (must_claim && !claim()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	110 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	111 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	112
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	113 f->do_oop(&_class_loader);
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	114 _dependencies.oops_do(f);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115 _handles->oops_do(f);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 if (klass_closure != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	117 classes_do(klass_closure);
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
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	121 void ClassLoaderData::Dependencies::oops_do(OopClosure* f) {
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	122 f->do_oop((oop*)&_list_head);
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	123 }
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	124
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	125 void ClassLoaderData::classes_do(KlassClosure* klass_closure) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	126 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	127 klass_closure->do_klass(k);
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	128 assert(k != k->next_link(), "no loops!");
6725 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 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	131
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	132 void ClassLoaderData::classes_do(void f(Klass * const)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	133 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	134 f(k);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	135 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	136 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	137
12995 e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	138 void ClassLoaderData::loaded_classes_do(KlassClosure* klass_closure) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	139 // Lock to avoid classes being modified/added/removed during iteration
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	140 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	141 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	142 // Do not filter ArrayKlass oops here...
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	143 if (k->oop_is_array() \|\| (k->oop_is_instance() && InstanceKlass::cast(k)->is_loaded())) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	144 klass_closure->do_klass(k);
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	145 }
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	146 }
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	147 }
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	148
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	149 void ClassLoaderData::classes_do(void f(InstanceKlass*)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	150 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	151 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	152 f(InstanceKlass::cast(k));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	153 }
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	154 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	155 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	156 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	157
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	158 void ClassLoaderData::record_dependency(Klass* k, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	159 ClassLoaderData * const from_cld = this;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	160 ClassLoaderData * const to_cld = k->class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	161
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	162 // 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	163 // 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	164 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	165 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	166 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	167
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	168 oop to;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	169 if (to_cld->is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	170 // 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	171 to = k->java_mirror();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	172 } else {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	173 to = to_cld->class_loader();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	174
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	175 // 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	176 // 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	177 if (!from_cld->is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	178 // 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	179 oop from = from_cld->class_loader();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	180
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	181 oop curr = from;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	182 while (curr != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	183 if (curr == to) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	184 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	185 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	186 curr = java_lang_ClassLoader::parent(curr);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	187 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	188 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	189 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	190
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	191 // 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	192 // Must handle over GC point.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	193 Handle dependency(THREAD, to);
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	194 from_cld->_dependencies.add(dependency, CHECK);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	195 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	196
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	197
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	198 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	199 // 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	200 // 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	201 objArrayOop ok = _list_head;
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	202 objArrayOop last = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	203 while (ok != NULL) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	204 last = ok;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	205 if (ok->obj_at(0) == dependency()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	206 // Don't need to add it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	207 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	208 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	209 ok = (objArrayOop)ok->obj_at(1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	210 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	211
7417 1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	212 // Must handle over GC points
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	213 assert (last != NULL, "dependencies should be initialized");
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	214 objArrayHandle last_handle(THREAD, last);
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	215
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	216 // 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	217 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	218 deps->obj_at_put(0, dependency());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	219
7417 1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	220 // Must handle over GC points
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	221 objArrayHandle new_dependency(THREAD, deps);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	222
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	223 // Add the dependency under lock
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	224 locked_add(last_handle, new_dependency, THREAD);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	225 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	226
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	227 void ClassLoaderData::Dependencies::locked_add(objArrayHandle last_handle,
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	228 objArrayHandle new_dependency,
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	229 Thread* THREAD) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	230
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	231 // 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	232 // 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	233 // 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	234 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	235
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	236 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	237
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	238 // 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	239 objArrayOop end = last_handle();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	240 objArrayOop last = NULL;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	241 while (end != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	242 last = end;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	243 // 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	244 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	245 // Don't need to add it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	246 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	247 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	248 end = (objArrayOop)end->obj_at(1);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	249 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	250 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	251 // 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	252 if (last->obj_at(0) == NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	253 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	254 } else {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	255 last->obj_at_put(1, new_dependency());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	256 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	257 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	258
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	259 void ClassLoaderDataGraph::clear_claimed_marks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	260 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	261 cld->clear_claimed();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	262 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	263 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	264
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	265 void ClassLoaderData::add_class(Klass* k) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	266 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	267 Klass* old_value = _klasses;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	268 k->set_next_link(old_value);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	269 // link the new item into the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	270 _klasses = k;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	271
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	272 if (TraceClassLoaderData && Verbose && k->class_loader_data() != NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	273 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	274 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	275 PTR_FORMAT " loader: " PTR_FORMAT " %s",
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	276 p2i(k),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	277 k->external_name(),
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	278 p2i(k->class_loader_data()),
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	279 p2i((void *)k->class_loader()),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	280 loader_name());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	281 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	282 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	283
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	284 // 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	285 // 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	286 // 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	287 void ClassLoaderData::remove_class(Klass* scratch_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	288 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	289 Klass* prev = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	290 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	291 if (k == scratch_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	292 if (prev == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	293 _klasses = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	294 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	295 Klass* next = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	296 prev->set_next_link(next);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	297 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	298 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	299 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	300 prev = k;
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	301 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	302 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	303 ShouldNotReachHere(); // should have found this class!!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	304 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	305
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	306 void ClassLoaderData::unload() {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	307 _unloading = true;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	308
10149 d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	309 // Tell serviceability tools these classes are unloading
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	310 classes_do(InstanceKlass::notify_unload_class);
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	311
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	312 if (TraceClassLoaderData) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	313 ResourceMark rm;
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	314 tty->print("[ClassLoaderData: unload loader data " INTPTR_FORMAT, p2i(this));
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	315 tty->print(" for instance " INTPTR_FORMAT " of %s", p2i((void *)class_loader()),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	316 loader_name());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	317 if (is_anonymous()) {
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	318 tty->print(" for anonymous class " INTPTR_FORMAT " ", p2i(_klasses));
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	319 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	320 tty->print_cr("]");
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	321 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	322 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	323
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	324 #ifdef ASSERT
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	325 class AllAliveClosure : public OopClosure {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	326 BoolObjectClosure* _is_alive_closure;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	327 bool _found_dead;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	328 public:
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	329 AllAliveClosure(BoolObjectClosure* is_alive_closure) : _is_alive_closure(is_alive_closure), _found_dead(false) {}
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	330 template <typename T> void do_oop_work(T* p) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	331 T heap_oop = oopDesc::load_heap_oop(p);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	332 if (!oopDesc::is_null(heap_oop)) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	333 oop obj = oopDesc::decode_heap_oop_not_null(heap_oop);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	334 if (!_is_alive_closure->do_object_b(obj)) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	335 _found_dead = true;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	336 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	337 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	338 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	339 void do_oop(oop* p) { do_oop_work<oop>(p); }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	340 void do_oop(narrowOop* p) { do_oop_work<narrowOop>(p); }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	341 bool found_dead() { return _found_dead; }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	342 };
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	343 #endif
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	344
20260 556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	345 oop ClassLoaderData::keep_alive_object() const {
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	346 assert(!keep_alive(), "Don't use with CLDs that are artificially kept alive");
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	347 return is_anonymous() ? _klasses->java_mirror() : class_loader();
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	348 }
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	349
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	350 bool ClassLoaderData::is_alive(BoolObjectClosure* is_alive_closure) const {
20260 556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	351 bool alive = keep_alive() // null class loader and incomplete anonymous klasses.
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	352 \|\| is_alive_closure->do_object_b(keep_alive_object());
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	353
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	354 #ifdef ASSERT
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	355 if (alive) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	356 AllAliveClosure all_alive_closure(is_alive_closure);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	357 KlassToOopClosure klass_closure(&all_alive_closure);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	358 const_cast<ClassLoaderData*>(this)->oops_do(&all_alive_closure, &klass_closure, false);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	359 assert(!all_alive_closure.found_dead(), err_msg("Found dead oop in alive cld: " PTR_FORMAT, p2i(this)));
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	360 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	361 #endif
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	362
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	363 return alive;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	364 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	365
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	366
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	367 ClassLoaderData::~ClassLoaderData() {
10149 d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	368 // Release C heap structures for all the classes.
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	369 classes_do(InstanceKlass::release_C_heap_structures);
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	370
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	371 Metaspace *m = _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	372 if (m != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	373 _metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	374 // release the metaspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	375 delete m;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	376 // release the handles
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	377 if (_handles != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	378 JNIHandleBlock::release_block(_handles);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	379 _handles = NULL;
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 }
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 // Clear all the JNI handles for methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	384 // 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	385 // 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	386 // 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	387 // 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	388 // NULL after class unloading.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	389 if (_jmethod_ids != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	390 Method::clear_jmethod_ids(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	391 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	392 // Delete lock
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	393 delete _metaspace_lock;
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 // Delete free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	396 if (_deallocate_list != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	397 delete _deallocate_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	398 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	399 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	400
8866 16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	401 /**
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	402 * 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	403 */
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	404 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	405 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	406 }
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	407
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	408 Metaspace* ClassLoaderData::metaspace_non_null() {
7614 59a58e20dc60 8006537: Assert when dumping archive with default methods jmasa parents: 7446 diff changeset	409 assert(!DumpSharedSpaces, "wrong metaspace!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	410 // 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	411 // to create smaller arena for Reflection class loaders also.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	412 // 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	413 // simply for delegating with no metadata of their own.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	414 if (_metaspace == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	415 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	416 // 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	417 if (_metaspace != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	418 return _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	419 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	420 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	421 assert (class_loader() == NULL, "Must be");
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	422 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	423 } else if (is_anonymous()) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	424 if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	425 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	426 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	427 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	428 } 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	429 if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	430 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	431 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	432 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::ReflectionMetaspaceType));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	433 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	434 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::StandardMetaspaceType));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	435 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	436 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437 return _metaspace;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440 JNIHandleBlock* ClassLoaderData::handles() const { return _handles; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	441 void ClassLoaderData::set_handles(JNIHandleBlock* handles) { _handles = handles; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	442
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	443 jobject ClassLoaderData::add_handle(Handle h) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	445 if (handles() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	446 set_handles(JNIHandleBlock::allocate_block());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	447 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	448 return handles()->allocate_handle(h());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	449 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	450
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	451 // 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	452 // 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	453 void ClassLoaderData::add_to_deallocate_list(Metadata* m) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	454 // Metadata in shared region isn't deleted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	455 if (!m->is_shared()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	456 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	457 if (_deallocate_list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	458 _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	459 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	460 _deallocate_list->append_if_missing(m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	461 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	462 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	463
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	464 // 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	465 void ClassLoaderData::free_deallocate_list() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	466 // Don't need lock, at safepoint
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	467 assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	468 if (_deallocate_list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	469 return;
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 // Go backwards because this removes entries that are freed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	472 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	473 Metadata* m = _deallocate_list->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	474 if (!m->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	475 _deallocate_list->remove_at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	476 // 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	477 // 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	478 if (m->is_method()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	479 MetadataFactory::free_metadata(this, (Method*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	480 } else if (m->is_constantPool()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	481 MetadataFactory::free_metadata(this, (ConstantPool*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 } else if (m->is_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483 MetadataFactory::free_metadata(this, (InstanceKlass*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	484 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	485 ShouldNotReachHere();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	487 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	488 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	489 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	490
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	491 // 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	492 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	493 // 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	494 return ClassLoaderDataGraph::add(loader, true, CHECK_NULL);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	495 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	496
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	497 const char* ClassLoaderData::loader_name() {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	498 // Handles null class loader
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	499 return SystemDictionary::loader_name(class_loader());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	500 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	501
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	502 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503 // Define to dump klasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	504 #undef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	505
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	506 void ClassLoaderData::dump(outputStream * const out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	507 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	508 out->print("ClassLoaderData CLD: "PTR_FORMAT", loader: "PTR_FORMAT", loader_klass: "PTR_FORMAT" %s {",
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	509 p2i(this), p2i((void *)class_loader()),
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	510 p2i(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	511 if (claimed()) out->print(" claimed ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	512 if (is_unloading()) out->print(" unloading ");
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	513 out->print(" handles " INTPTR_FORMAT, p2i(handles()));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	514 out->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	515 if (metaspace_or_null() != NULL) {
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	516 out->print_cr("metaspace: " INTPTR_FORMAT, p2i(metaspace_or_null()));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	517 metaspace_or_null()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	519 out->print_cr("metaspace: NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	520 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	521
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	522 #ifdef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	523 if (Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	524 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	525 Klass* k = _klasses;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	526 while (k != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	527 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	528 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	529 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	530 k = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	531 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	532 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	533 #endif // CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	534 #undef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	535 if (_jmethod_ids != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	536 Method::print_jmethod_ids(this, out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	537 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	538 out->print_cr("}");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	539 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	540 #endif // PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	542 void ClassLoaderData::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	543 oop cl = class_loader();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	544
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	545 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	546 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	547
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	548 // Verify the integrity of the allocated space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	549 if (metaspace_or_null() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	550 metaspace_or_null()->verify();
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	553 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	554 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	555 k->verify();
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	556 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	557 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	558 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	559
17674 85318d1fe8fe 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 17663 diff changeset	560 bool ClassLoaderData::contains_klass(Klass* klass) {
85318d1fe8fe 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 17663 diff changeset	561 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
85318d1fe8fe 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 17663 diff changeset	562 if (k == klass) return true;
85318d1fe8fe 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 17663 diff changeset	563 }
85318d1fe8fe 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 17663 diff changeset	564 return false;
85318d1fe8fe 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 17663 diff changeset	565 }
85318d1fe8fe 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 17663 diff changeset	566
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	567
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	568 // GC root of class loader data created.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	569 ClassLoaderData* ClassLoaderDataGraph::_head = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	570 ClassLoaderData* ClassLoaderDataGraph::_unloading = NULL;
17999 e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	571 ClassLoaderData* ClassLoaderDataGraph::_saved_unloading = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572 ClassLoaderData* ClassLoaderDataGraph::_saved_head = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	573
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17674 diff changeset	574 bool ClassLoaderDataGraph::_should_purge = false;
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17674 diff changeset	575
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	576 // 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	577 // 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	578 ClassLoaderData* ClassLoaderDataGraph::add(Handle loader, bool is_anonymous, TRAPS) {
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	579 // We need to allocate all the oops for the ClassLoaderData before allocating the
9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	580 // actual ClassLoaderData object.
9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	581 ClassLoaderData::Dependencies dependencies(CHECK_NULL);
7409 30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	582
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	583 No_Safepoint_Verifier no_safepoints; // we mustn't GC until we've installed the
9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	584 // ClassLoaderData in the graph since the CLD
9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	585 // contains unhandled oops
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	586
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	587 ClassLoaderData* cld = new ClassLoaderData(loader, is_anonymous, dependencies);
9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	588
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	590 if (!is_anonymous) {
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	591 ClassLoaderData** cld_addr = java_lang_ClassLoader::loader_data_addr(loader());
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	592 // First, Atomically set it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	593 ClassLoaderData* old = (ClassLoaderData*) Atomic::cmpxchg_ptr(cld, cld_addr, NULL);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	594 if (old != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	595 delete cld;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	596 // Returns the data.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	597 return old;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	598 }
6725 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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	601 // 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	602 // class loader data
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	603 ClassLoaderData** list_head = &_head;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	604 ClassLoaderData* next = _head;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	605
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	606 do {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	607 cld->set_next(next);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	608 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	609 if (exchanged == next) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	610 if (TraceClassLoaderData) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	611 ResourceMark rm;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	612 tty->print("[ClassLoaderData: ");
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	613 tty->print("create class loader data " INTPTR_FORMAT, p2i(cld));
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	614 tty->print(" for instance " INTPTR_FORMAT " of %s", p2i((void *)cld->class_loader()),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	615 cld->loader_name());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616 tty->print_cr("]");
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 return cld;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620 next = exchanged;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	621 } while (true);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	622
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	625 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	626 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	627 cld->oops_do(f, klass_closure, must_claim);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	628 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	629 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	630
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	631 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	632 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	633 if (cld->keep_alive()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	634 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	635 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	636 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	637 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	638
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 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	640 if (ClassUnloading) {
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	641 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	642 } else {
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	643 oops_do(f, klass_closure, must_claim);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	644 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	645 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	646
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	647 void ClassLoaderDataGraph::cld_do(CLDClosure* cl) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	648 for (ClassLoaderData* cld = _head; cl != NULL && cld != NULL; cld = cld->next()) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	649 cl->do_cld(cld);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	650 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	651 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	652
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	653 void ClassLoaderDataGraph::roots_cld_do(CLDClosure* strong, CLDClosure* weak) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	654 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->_next) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	655 CLDClosure* closure = cld->keep_alive() ? strong : weak;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	656 if (closure != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	657 closure->do_cld(cld);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	658 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	659 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	660 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	661
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	662 void ClassLoaderDataGraph::keep_alive_cld_do(CLDClosure* cl) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	663 roots_cld_do(cl, NULL);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	664 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	665
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	666 void ClassLoaderDataGraph::always_strong_cld_do(CLDClosure* cl) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	667 if (ClassUnloading) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	668 keep_alive_cld_do(cl);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	669 } else {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	670 cld_do(cl);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	671 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	672 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	673
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	674 void ClassLoaderDataGraph::classes_do(KlassClosure* klass_closure) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	675 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	676 cld->classes_do(klass_closure);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	677 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	678 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	679
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	680 void ClassLoaderDataGraph::classes_do(void f(Klass* const)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	681 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	682 cld->classes_do(f);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	683 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	684 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	685
12995 e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	686 void ClassLoaderDataGraph::loaded_classes_do(KlassClosure* klass_closure) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	687 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	688 cld->loaded_classes_do(klass_closure);
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	689 }
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	690 }
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	691
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	692 void ClassLoaderDataGraph::classes_unloading_do(void f(Klass* const)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	693 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
17999 e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	694 // Only walk the head until any clds not purged from prior unloading
e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	695 // (CMS doesn't purge right away).
e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	696 for (ClassLoaderData* cld = _unloading; cld != _saved_unloading; cld = cld->next()) {
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	697 cld->classes_do(f);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	698 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	699 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	700
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	701 GrowableArray<ClassLoaderData> ClassLoaderDataGraph::new_clds() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	702 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	703
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	704 GrowableArray<ClassLoaderData> array = new GrowableArray<ClassLoaderData*>();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	705
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	706 // 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	707 ClassLoaderData* curr = _head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	708 while (curr != _saved_head) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	709 if (!curr->claimed()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	710 array->push(curr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	711
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	712 if (TraceClassLoaderData) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	713 tty->print("[ClassLoaderData] found new CLD: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	714 curr->print_value_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	715 tty->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	716 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	717 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	718
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	719 curr = curr->_next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	720 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	722 return array;
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
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	725 bool ClassLoaderDataGraph::unload_list_contains(const void* x) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	726 assert(SafepointSynchronize::is_at_safepoint(), "only safe to call at safepoint");
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	727 for (ClassLoaderData* cld = _unloading; cld != NULL; cld = cld->next()) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	728 if (cld->metaspace_or_null() != NULL && cld->metaspace_or_null()->contains(x)) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	729 return true;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	730 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	731 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	732 return false;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	733 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	734
17663 40353abd7984 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13400 diff changeset	735 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	736 bool ClassLoaderDataGraph::contains_loader_data(ClassLoaderData* loader_data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	737 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	738 if (loader_data == data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	739 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	740 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	741 }
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 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	744 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	745 #endif // PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	746
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	747
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	748 // 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	749 // and deallocation later.
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	750 bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	751 ClassLoaderData* data = _head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	752 ClassLoaderData* prev = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	753 bool seen_dead_loader = false;
17999 e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	754
e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	755 // Save previous _unloading pointer for CMS which may add to unloading list before
e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	756 // purging and we don't want to rewalk the previously unloaded class loader data.
e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	757 _saved_unloading = _unloading;
e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	758
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	759 // 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	760 // unneeded entries.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	761 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	762 MetadataOnStackMark md_on_stack;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	763 while (data != NULL) {
20260 556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	764 if (data->is_alive(is_alive_closure)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	765 if (has_redefined_a_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	766 data->classes_do(InstanceKlass::purge_previous_versions);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	767 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	768 data->free_deallocate_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	769 prev = data;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	770 data = data->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	771 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	772 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	773 seen_dead_loader = true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	774 ClassLoaderData* dead = data;
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	775 dead->unload();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	776 data = data->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	777 // Remove from loader list.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10181 diff changeset	778 // This class loader data will no longer be found
868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10181 diff changeset	779 // in the ClassLoaderDataGraph.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	780 if (prev != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	781 prev->set_next(data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	782 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	783 assert(dead == _head, "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	784 _head = data;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	785 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	786 dead->set_next(_unloading);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	787 _unloading = dead;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	788 }
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	789
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	790 if (seen_dead_loader) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	791 post_class_unload_events();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	792 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	793
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	794 return seen_dead_loader;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	795 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	796
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	797 void ClassLoaderDataGraph::purge() {
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 17674 diff changeset	798 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	799 ClassLoaderData* list = _unloading;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	800 _unloading = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	801 ClassLoaderData* next = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	802 while (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	803 ClassLoaderData* purge_me = next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	804 next = purge_me->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	805 delete purge_me;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	806 }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 9075 diff changeset	807 Metaspace::purge();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	808 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	809
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	810 void ClassLoaderDataGraph::post_class_unload_events(void) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	811 #if INCLUDE_TRACE
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	812 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	813 if (Tracing::enabled()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	814 if (Tracing::is_event_enabled(TraceClassUnloadEvent)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	815 assert(_unloading != NULL, "need class loader data unload list!");
13400 86e6d691f2e1 8028128: Add a type safe alternative for working with counter based data mgronlun parents: 12995 diff changeset	816 _class_unload_time = Ticks::now();
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	817 classes_unloading_do(&class_unload_event);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	818 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	819 Tracing::on_unloading_classes();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	820 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	821 #endif
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	822 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	823
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	824 // CDS support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	825
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	826 // 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	827 // 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	828 // sort of looks like it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	829 Metaspace* ClassLoaderData::_ro_metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	830 Metaspace* ClassLoaderData::_rw_metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	831 static bool _shared_metaspaces_initialized = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	832
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	833 // 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	834 void ClassLoaderData::initialize_shared_metaspaces() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	835 assert(DumpSharedSpaces, "only use this for dumping shared spaces");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	836 assert(this == ClassLoaderData::the_null_class_loader_data(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	837 "only supported for null loader data for now");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	838 assert (!_shared_metaspaces_initialized, "only initialize once");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	839 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	840 _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	841 _rw_metaspace = new Metaspace(_metaspace_lock, Metaspace::ReadWriteMetaspaceType);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	842 _shared_metaspaces_initialized = true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	843 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	844
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	845 Metaspace* ClassLoaderData::ro_metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	846 assert(_ro_metaspace != NULL, "should already be initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	847 return _ro_metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	848 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	849
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	850 Metaspace* ClassLoaderData::rw_metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	851 assert(_rw_metaspace != NULL, "should already be initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	852 return _rw_metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	853 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	854
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	855 ClassLoaderDataGraphKlassIteratorAtomic::ClassLoaderDataGraphKlassIteratorAtomic()
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	856 : _next_klass(NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	857 ClassLoaderData* cld = ClassLoaderDataGraph::_head;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	858 Klass* klass = NULL;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	859
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	860 // Find the first klass in the CLDG.
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	861 while (cld != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	862 klass = cld->_klasses;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	863 if (klass != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	864 _next_klass = klass;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	865 return;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	866 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	867 cld = cld->next();
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	868 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	869 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	870
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	871 Klass* ClassLoaderDataGraphKlassIteratorAtomic::next_klass_in_cldg(Klass* klass) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	872 Klass* next = klass->next_link();
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	873 if (next != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	874 return next;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	875 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	876
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	877 // No more klasses in the current CLD. Time to find a new CLD.
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	878 ClassLoaderData* cld = klass->class_loader_data();
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	879 while (next == NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	880 cld = cld->next();
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	881 if (cld == NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	882 break;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	883 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	884 next = cld->_klasses;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	885 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	886
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	887 return next;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	888 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	889
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	890 Klass* ClassLoaderDataGraphKlassIteratorAtomic::next_klass() {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	891 Klass* head = (Klass*)_next_klass;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	892
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	893 while (head != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	894 Klass* next = next_klass_in_cldg(head);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	895
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	896 Klass* old_head = (Klass*)Atomic::cmpxchg_ptr(next, &_next_klass, head);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	897
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	898 if (old_head == head) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	899 return head; // Won the CAS.
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	900 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	901
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	902 head = old_head;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	903 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	904
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	905 // Nothing more for the iterator to hand out.
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	906 assert(head == NULL, err_msg("head is " PTR_FORMAT ", expected not null:", p2i(head)));
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	907 return NULL;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	908 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	909
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	910 ClassLoaderDataGraphMetaspaceIterator::ClassLoaderDataGraphMetaspaceIterator() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	911 _data = ClassLoaderDataGraph::_head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	912 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	913
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	914 ClassLoaderDataGraphMetaspaceIterator::~ClassLoaderDataGraphMetaspaceIterator() {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	915
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	916 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	917 // callable from debugger
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	918 extern "C" int print_loader_data_graph() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	919 ClassLoaderDataGraph::dump_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	920 return 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	921 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	922
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	923 void ClassLoaderDataGraph::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	924 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	925 data->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	926 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	927 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	928
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	929 void ClassLoaderDataGraph::dump_on(outputStream * const out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	930 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	931 data->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	932 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	933 MetaspaceAux::dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	934 }
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	935 #endif // PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	936
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	937 void ClassLoaderData::print_value_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	938 if (class_loader() == NULL) {
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	939 out->print("NULL class_loader");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	940 } else {
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	941 out->print("class loader " INTPTR_FORMAT, p2i(this));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	942 class_loader()->print_value_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	943 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	944 }
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	945
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	946 #if INCLUDE_TRACE
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	947
13400 86e6d691f2e1 8028128: Add a type safe alternative for working with counter based data mgronlun parents: 12995 diff changeset	948 Ticks ClassLoaderDataGraph::_class_unload_time;
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	949
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	950 void ClassLoaderDataGraph::class_unload_event(Klass* const k) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	951
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	952 // post class unload event
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	953 EventClassUnload event(UNTIMED);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	954 event.set_endtime(_class_unload_time);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	955 event.set_unloadedClass(k);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	956 oop defining_class_loader = k->class_loader();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	957 event.set_definingClassLoader(defining_class_loader != NULL ?
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	958 defining_class_loader->klass() : (Klass*)NULL);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	959 event.commit();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	960 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	961
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	962 #endif /* INCLUDE_TRACE */

Mercurial > hg > truffle

annotate src/share/vm/classfile/classLoaderData.cpp @ 20762:c2844108a708