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

annotate src/share/vm/classfile/classLoaderData.cpp @ 21205:f34ae5c01864

include reexecute, rethrow_exception and return_oop info when disassembling debug scopes

author	Doug Simon <doug.simon@oracle.com>
date	Mon, 04 May 2015 10:39:12 +0200
parents	7848fc12602b
children

rev	line source
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1 /*
14378 48314d596a04 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 14190 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"
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	67 #if INCLUDE_TRACE
20653 82d3e7b5277a 8065361: Fixup headers and definitions for INCLUDE_TRACE mgronlun parents: 20619 diff changeset	68 #include "trace/tracing.hpp"
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	69 #endif
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	70
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	71 ClassLoaderData * ClassLoaderData::_the_null_class_loader_data = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	72
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	73 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	74 _class_loader(h_class_loader()),
20260 556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	75 _is_anonymous(is_anonymous),
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	76 // An anonymous class loader data doesn't have anything to keep
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	77 // it from being unloaded during parsing of the anonymous class.
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	78 // The null-class-loader should always be kept alive.
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	79 _keep_alive(is_anonymous \|\| h_class_loader.is_null()),
7409 30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	80 _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	81 _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	82 _next(NULL), _dependencies(dependencies),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	83 _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	84 // empty
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	85 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	86
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	87 void ClassLoaderData::init_dependencies(TRAPS) {
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	88 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	89 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	90 _dependencies.init(CHECK);
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	91 }
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 void ClassLoaderData::Dependencies::init(TRAPS) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	94 // 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	95 // 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	96 _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	97 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	98
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	99 bool ClassLoaderData::claim() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	100 if (_claimed == 1) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	101 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	102 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	103
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	104 return (int) Atomic::cmpxchg(1, &_claimed, 0) == 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	105 }
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 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	108 if (must_claim && !claim()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	109 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	110 }
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 f->do_oop(&_class_loader);
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	113 _dependencies.oops_do(f);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	114 _handles->oops_do(f);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115 if (klass_closure != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116 classes_do(klass_closure);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	117 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	118 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	119
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	120 void ClassLoaderData::Dependencies::oops_do(OopClosure* f) {
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	121 f->do_oop((oop*)&_list_head);
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	122 }
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	123
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	124 void ClassLoaderData::classes_do(KlassClosure* klass_closure) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	125 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	126 klass_closure->do_klass(k);
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	127 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	128 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	129 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	130
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	131 void ClassLoaderData::classes_do(void f(Klass * const)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	132 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	133 f(k);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	134 }
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
12995 e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	137 void ClassLoaderData::loaded_classes_do(KlassClosure* klass_closure) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	138 // Lock to avoid classes being modified/added/removed during iteration
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	139 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	140 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	141 // Do not filter ArrayKlass oops here...
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	142 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	143 klass_closure->do_klass(k);
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	144 }
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
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	148 void ClassLoaderData::classes_do(void f(InstanceKlass*)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	149 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	150 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	151 f(InstanceKlass::cast(k));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	152 }
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	153 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	154 }
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 void ClassLoaderData::record_dependency(Klass* k, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	158 ClassLoaderData * const from_cld = this;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	159 ClassLoaderData * const to_cld = k->class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	160
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	161 // 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	162 // 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	163 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	164 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	165 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	166
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	167 oop to;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	168 if (to_cld->is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	169 // 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	170 to = k->java_mirror();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	171 } else {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	172 to = to_cld->class_loader();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	173
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	174 // 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	175 // 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	176 if (!from_cld->is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	177 // 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	178 oop from = from_cld->class_loader();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	179
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	180 oop curr = from;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	181 while (curr != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	182 if (curr == to) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	183 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	184 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	185 curr = java_lang_ClassLoader::parent(curr);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	186 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	187 }
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 // 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	191 // Must handle over GC point.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	192 Handle dependency(THREAD, to);
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	193 from_cld->_dependencies.add(dependency, CHECK);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	194 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	195
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	196
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	197 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	198 // 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	199 // 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	200 objArrayOop ok = _list_head;
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	201 objArrayOop last = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	202 while (ok != NULL) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	203 last = ok;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	204 if (ok->obj_at(0) == dependency()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	205 // Don't need to add it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	206 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	207 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	208 ok = (objArrayOop)ok->obj_at(1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	209 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	210
7417 1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	211 // Must handle over GC points
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	212 assert (last != NULL, "dependencies should be initialized");
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	213 objArrayHandle last_handle(THREAD, last);
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	214
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	215 // 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	216 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	217 deps->obj_at_put(0, dependency());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	218
7417 1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	219 // Must handle over GC points
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	220 objArrayHandle new_dependency(THREAD, deps);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	221
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	222 // Add the dependency under lock
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	223 locked_add(last_handle, new_dependency, THREAD);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	224 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	225
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	226 void ClassLoaderData::Dependencies::locked_add(objArrayHandle last_handle,
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	227 objArrayHandle new_dependency,
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	228 Thread* THREAD) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	229
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	230 // 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	231 // 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	232 // 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	233 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	234
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	235 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	236
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	237 // 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	238 objArrayOop end = last_handle();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	239 objArrayOop last = NULL;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	240 while (end != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	241 last = end;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	242 // 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	243 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	244 // Don't need to add it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	245 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	246 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	247 end = (objArrayOop)end->obj_at(1);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	248 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	249 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	250 // 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	251 if (last->obj_at(0) == NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	252 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	253 } else {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	254 last->obj_at_put(1, new_dependency());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	255 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	256 }
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 void ClassLoaderDataGraph::clear_claimed_marks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	259 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	260 cld->clear_claimed();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	261 }
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 void ClassLoaderData::add_class(Klass* k) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	265 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	266 Klass* old_value = _klasses;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	267 k->set_next_link(old_value);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	268 // link the new item into the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	269 _klasses = k;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	270
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	271 if (TraceClassLoaderData && Verbose && k->class_loader_data() != NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	272 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	273 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	274 PTR_FORMAT " loader: " PTR_FORMAT " %s",
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	275 p2i(k),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	276 k->external_name(),
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	277 p2i(k->class_loader_data()),
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	278 p2i((void *)k->class_loader()),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	279 loader_name());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	280 }
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 // 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	284 // 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	285 // 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	286 void ClassLoaderData::remove_class(Klass* scratch_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	287 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	288 Klass* prev = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	289 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	290 if (k == scratch_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	291 if (prev == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	292 _klasses = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	293 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	294 Klass* next = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	295 prev->set_next_link(next);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	296 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	297 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	298 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	299 prev = k;
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	300 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	301 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	302 ShouldNotReachHere(); // should have found this class!!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	303 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	304
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	305 void ClassLoaderData::unload() {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	306 _unloading = true;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	307
10149 d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	308 // Tell serviceability tools these classes are unloading
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	309 classes_do(InstanceKlass::notify_unload_class);
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	310
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	311 if (TraceClassLoaderData) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	312 ResourceMark rm;
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	313 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	314 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	315 loader_name());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	316 if (is_anonymous()) {
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	317 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	318 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	319 tty->print_cr("]");
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	320 }
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
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	323 #ifdef ASSERT
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	324 class AllAliveClosure : public OopClosure {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	325 BoolObjectClosure* _is_alive_closure;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	326 bool _found_dead;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	327 public:
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	328 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	329 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	330 T heap_oop = oopDesc::load_heap_oop(p);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	331 if (!oopDesc::is_null(heap_oop)) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	332 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	333 if (!_is_alive_closure->do_object_b(obj)) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	334 _found_dead = true;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	335 }
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 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	339 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	340 bool found_dead() { return _found_dead; }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	341 };
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	342 #endif
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	343
20260 556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	344 oop ClassLoaderData::keep_alive_object() const {
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	345 assert(!keep_alive(), "Don't use with CLDs that are artificially kept alive");
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	346 return is_anonymous() ? _klasses->java_mirror() : class_loader();
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	347 }
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	348
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	349 bool ClassLoaderData::is_alive(BoolObjectClosure* is_alive_closure) const {
20260 556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	350 bool alive = keep_alive() // null class loader and incomplete anonymous klasses.
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	351 \|\| is_alive_closure->do_object_b(keep_alive_object());
556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	352
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	353 #ifdef ASSERT
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	354 if (alive) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	355 AllAliveClosure all_alive_closure(is_alive_closure);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	356 KlassToOopClosure klass_closure(&all_alive_closure);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	357 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	358 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	359 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	360 #endif
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	361
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	362 return alive;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	363 }
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
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	366 ClassLoaderData::~ClassLoaderData() {
10149 d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	367 // 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	368 classes_do(InstanceKlass::release_C_heap_structures);
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	369
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	370 Metaspace *m = _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	371 if (m != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	372 _metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	373 // release the metaspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	374 delete m;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	375 // release the handles
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	376 if (_handles != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	377 JNIHandleBlock::release_block(_handles);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	378 _handles = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	379 }
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 // Clear all the JNI handles for methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	383 // 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	384 // 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	385 // 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	386 // 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	387 // NULL after class unloading.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	388 if (_jmethod_ids != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	389 Method::clear_jmethod_ids(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	390 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	391 // Delete lock
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	392 delete _metaspace_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	393
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	394 // Delete free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	395 if (_deallocate_list != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	396 delete _deallocate_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	397 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	398 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	399
8866 16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	400 /**
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	401 * 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	402 */
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	403 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	404 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	405 }
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	406
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	407 Metaspace* ClassLoaderData::metaspace_non_null() {
7614 59a58e20dc60 8006537: Assert when dumping archive with default methods jmasa parents: 7446 diff changeset	408 assert(!DumpSharedSpaces, "wrong metaspace!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	409 // 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	410 // to create smaller arena for Reflection class loaders also.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	411 // 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	412 // simply for delegating with no metadata of their own.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	413 if (_metaspace == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	414 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	415 // 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	416 if (_metaspace != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	417 return _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	418 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	419 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	420 assert (class_loader() == NULL, "Must be");
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	421 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	422 } else if (is_anonymous()) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	423 if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	424 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	425 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	426 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	427 } 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	428 if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	429 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	430 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	431 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::ReflectionMetaspaceType));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	432 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	433 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::StandardMetaspaceType));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	434 }
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 return _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437 }
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 JNIHandleBlock* ClassLoaderData::handles() const { return _handles; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440 void ClassLoaderData::set_handles(JNIHandleBlock* handles) { _handles = handles; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	441
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	442 jobject ClassLoaderData::add_handle(Handle h) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	443 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	444 if (handles() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	445 set_handles(JNIHandleBlock::allocate_block());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	446 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	447 return handles()->allocate_handle(h());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	448 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	449
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	450 // 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	451 // 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	452 void ClassLoaderData::add_to_deallocate_list(Metadata* m) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	453 // Metadata in shared region isn't deleted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	454 if (!m->is_shared()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	455 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	456 if (_deallocate_list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	457 _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	458 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	459 _deallocate_list->append_if_missing(m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	460 }
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 // 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	464 void ClassLoaderData::free_deallocate_list() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	465 // Don't need lock, at safepoint
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	466 assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	467 if (_deallocate_list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	468 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	469 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	470 // Go backwards because this removes entries that are freed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	471 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	472 Metadata* m = _deallocate_list->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	473 if (!m->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	474 _deallocate_list->remove_at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	475 // 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	476 // 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	477 if (m->is_method()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	478 MetadataFactory::free_metadata(this, (Method*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	479 } else if (m->is_constantPool()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	480 MetadataFactory::free_metadata(this, (ConstantPool*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	481 } else if (m->is_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 MetadataFactory::free_metadata(this, (InstanceKlass*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	484 ShouldNotReachHere();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	485 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486 }
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
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	490 // 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	491 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	492 // 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	493 return ClassLoaderDataGraph::add(loader, true, CHECK_NULL);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	494 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	495
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	496 const char* ClassLoaderData::loader_name() {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	497 // Handles null class loader
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	498 return SystemDictionary::loader_name(class_loader());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	499 }
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 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	502 // Define to dump klasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503 #undef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	504
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	505 void ClassLoaderData::dump(outputStream * const out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	506 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	507 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	508 p2i(this), p2i((void *)class_loader()),
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	509 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	510 if (claimed()) out->print(" claimed ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	511 if (is_unloading()) out->print(" unloading ");
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	512 out->print(" handles " INTPTR_FORMAT, p2i(handles()));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	513 out->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	514 if (metaspace_or_null() != NULL) {
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	515 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	516 metaspace_or_null()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	517 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518 out->print_cr("metaspace: NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	519 }
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 #ifdef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	522 if (Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	523 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	524 Klass* k = _klasses;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	525 while (k != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	526 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	527 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	528 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	529 k = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	530 }
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 #endif // CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	533 #undef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	534 if (_jmethod_ids != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	535 Method::print_jmethod_ids(this, out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	536 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	537 out->print_cr("}");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	538 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	539 #endif // PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	540
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541 void ClassLoaderData::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	542 oop cl = class_loader();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	543
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	544 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	545 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	546
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	547 // Verify the integrity of the allocated space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	548 if (metaspace_or_null() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	549 metaspace_or_null()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	550 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	551
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	552 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	553 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	554 k->verify();
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	555 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	556 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	557 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	558
14378 48314d596a04 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 14190 diff changeset	559 bool ClassLoaderData::contains_klass(Klass* klass) {
48314d596a04 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 14190 diff changeset	560 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
48314d596a04 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 14190 diff changeset	561 if (k == klass) return true;
48314d596a04 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 14190 diff changeset	562 }
48314d596a04 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 14190 diff changeset	563 return false;
48314d596a04 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 14190 diff changeset	564 }
48314d596a04 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on coleenp parents: 14190 diff changeset	565
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	566
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	567 // GC root of class loader data created.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	568 ClassLoaderData* ClassLoaderDataGraph::_head = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	569 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	570 ClassLoaderData* ClassLoaderDataGraph::_saved_unloading = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	571 ClassLoaderData* ClassLoaderDataGraph::_saved_head = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 14378 diff changeset	573 bool ClassLoaderDataGraph::_should_purge = false;
7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 14378 diff changeset	574
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	575 // 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	576 // 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	577 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	578 // 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	579 // actual ClassLoaderData object.
9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	580 ClassLoaderData::Dependencies dependencies(CHECK_NULL);
7409 30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	581
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	582 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	583 // 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	584 // contains unhandled oops
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	585
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	586 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	587
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	588
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	589 if (!is_anonymous) {
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	590 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	591 // First, Atomically set it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	592 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	593 if (old != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	594 delete cld;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	595 // Returns the data.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	596 return old;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	597 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	598 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	599
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	600 // 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	601 // class loader data
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	602 ClassLoaderData** list_head = &_head;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	603 ClassLoaderData* next = _head;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	604
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	605 do {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	606 cld->set_next(next);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	607 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	608 if (exchanged == next) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	609 if (TraceClassLoaderData) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	610 ResourceMark rm;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	611 tty->print("[ClassLoaderData: ");
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	612 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	613 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	614 cld->loader_name());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 tty->print_cr("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	616 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	617 return cld;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619 next = exchanged;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620 } while (true);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	621
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624 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	625 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	626 cld->oops_do(f, klass_closure, must_claim);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	627 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	628 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	629
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	630 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	631 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	632 if (cld->keep_alive()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	633 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	634 }
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
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	638 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	639 if (ClassUnloading) {
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	640 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	641 } else {
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	642 oops_do(f, klass_closure, must_claim);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	643 }
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 void ClassLoaderDataGraph::cld_do(CLDClosure* cl) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	647 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	648 cl->do_cld(cld);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	649 }
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 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	653 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	654 CLDClosure* closure = cld->keep_alive() ? strong : weak;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	655 if (closure != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	656 closure->do_cld(cld);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	657 }
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 void ClassLoaderDataGraph::keep_alive_cld_do(CLDClosure* cl) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	662 roots_cld_do(cl, NULL);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	663 }
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 void ClassLoaderDataGraph::always_strong_cld_do(CLDClosure* cl) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	666 if (ClassUnloading) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	667 keep_alive_cld_do(cl);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	668 } else {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	669 cld_do(cl);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	670 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	671 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	672
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	673 void ClassLoaderDataGraph::classes_do(KlassClosure* klass_closure) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	674 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	675 cld->classes_do(klass_closure);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	676 }
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
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	679 void ClassLoaderDataGraph::classes_do(void f(Klass* const)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	680 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	681 cld->classes_do(f);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	682 }
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
12995 e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	685 void ClassLoaderDataGraph::loaded_classes_do(KlassClosure* klass_closure) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	686 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	687 cld->loaded_classes_do(klass_closure);
e64f1fe9756b 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes farvidsson parents: 12316 diff changeset	688 }
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
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	691 void ClassLoaderDataGraph::classes_unloading_do(void f(Klass* const)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	692 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	693 // 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	694 // (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	695 for (ClassLoaderData* cld = _unloading; cld != _saved_unloading; cld = cld->next()) {
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	696 cld->classes_do(f);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	697 }
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
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	700 GrowableArray<ClassLoaderData> ClassLoaderDataGraph::new_clds() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	701 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	702
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	703 GrowableArray<ClassLoaderData> array = new GrowableArray<ClassLoaderData*>();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	704
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	705 // 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	706 ClassLoaderData* curr = _head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	707 while (curr != _saved_head) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	708 if (!curr->claimed()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	709 array->push(curr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	710
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	711 if (TraceClassLoaderData) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	712 tty->print("[ClassLoaderData] found new CLD: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	713 curr->print_value_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	714 tty->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	715 }
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 curr = curr->_next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	719 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	720
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721 return array;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	722 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	723
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	724 bool ClassLoaderDataGraph::unload_list_contains(const void* x) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	725 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	726 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	727 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	728 return true;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	729 }
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 return false;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	732 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	733
14190 ce86c36b8921 8029178: Parallel class loading test anonymous-simple gets SIGSEGV in Metaspace::contains coleenp parents: 13400 diff changeset	734 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	735 bool ClassLoaderDataGraph::contains_loader_data(ClassLoaderData* loader_data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	736 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	737 if (loader_data == data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	738 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	739 }
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 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	743 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	744 #endif // PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	745
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	746
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	747 // 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	748 // and deallocation later.
20619 b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	749 bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure, bool clean_alive) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	750 ClassLoaderData* data = _head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	751 ClassLoaderData* prev = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	752 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	753
e4a6e7f1b90b 8047812: Ensure ClassLoaderDataGraph::classes_unloading_do only delivers klasses from CLDs with non-reclaimed class loader oops mgronlun parents: 17937 diff changeset	754 // 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	755 // 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	756 _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	757
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	758 while (data != NULL) {
20260 556a06aec3fa 8035412: Cleanup ClassLoaderData::is_alive stefank parents: 17999 diff changeset	759 if (data->is_alive(is_alive_closure)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	760 prev = data;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	761 data = data->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	762 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	763 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	764 seen_dead_loader = true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	765 ClassLoaderData* dead = data;
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	766 dead->unload();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	767 data = data->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	768 // Remove from loader list.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10181 diff changeset	769 // 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	770 // in the ClassLoaderDataGraph.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	771 if (prev != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	772 prev->set_next(data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	773 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	774 assert(dead == _head, "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	775 _head = data;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	776 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	777 dead->set_next(_unloading);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	778 _unloading = dead;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	779 }
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	780
20619 b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	781 if (clean_alive) {
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	782 // Clean previous versions and the deallocate list.
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	783 ClassLoaderDataGraph::clean_metaspaces();
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	784 }
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	785
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	786 if (seen_dead_loader) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	787 post_class_unload_events();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	788 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	789
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	790 return seen_dead_loader;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	791 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	792
20619 b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	793 void ClassLoaderDataGraph::clean_metaspaces() {
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	794 // mark metadata seen on the stack and code cache so we can delete unneeded entries.
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	795 bool has_redefined_a_class = JvmtiExport::has_redefined_a_class();
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	796 MetadataOnStackMark md_on_stack(has_redefined_a_class);
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	797
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	798 if (has_redefined_a_class) {
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	799 // purge_previous_versions also cleans weak method links. Because
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	800 // one method's MDO can reference another method from another
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	801 // class loader, we need to first clean weak method links for all
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	802 // class loaders here. Below, we can then free redefined methods
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	803 // for all class loaders.
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	804 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	805 data->classes_do(InstanceKlass::purge_previous_versions);
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	806 }
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	807 }
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	808
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	809 // Need to purge the previous version before deallocating.
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	810 free_deallocate_lists();
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	811 }
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	812
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	813 void ClassLoaderDataGraph::purge() {
17935 7384f6a12fc1 8038212: Method::is_valid_method() check has performance regression impact for stackwalking coleenp parents: 14378 diff changeset	814 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	815 ClassLoaderData* list = _unloading;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	816 _unloading = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	817 ClassLoaderData* next = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	818 while (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	819 ClassLoaderData* purge_me = next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	820 next = purge_me->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	821 delete purge_me;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	822 }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 9075 diff changeset	823 Metaspace::purge();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	824 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	825
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	826 void ClassLoaderDataGraph::post_class_unload_events(void) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	827 #if INCLUDE_TRACE
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	828 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	829 if (Tracing::enabled()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	830 if (Tracing::is_event_enabled(TraceClassUnloadEvent)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	831 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	832 _class_unload_time = Ticks::now();
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	833 classes_unloading_do(&class_unload_event);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	834 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	835 Tracing::on_unloading_classes();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	836 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	837 #endif
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	838 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	839
20619 b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	840 void ClassLoaderDataGraph::free_deallocate_lists() {
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	841 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	842 // We need to keep this data until InstanceKlass::purge_previous_version has been
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	843 // called on all alive classes. See the comment in ClassLoaderDataGraph::clean_metaspaces.
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	844 cld->free_deallocate_list();
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	845 }
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	846 }
b12a2a9b05ca 8056240: Investigate increased GC remark time after class unloading changes in CRM Fuse stefank parents: 20278 diff changeset	847
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	848 // CDS support
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 // 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	851 // 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	852 // sort of looks like it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	853 Metaspace* ClassLoaderData::_ro_metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	854 Metaspace* ClassLoaderData::_rw_metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	855 static bool _shared_metaspaces_initialized = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	856
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	857 // 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	858 void ClassLoaderData::initialize_shared_metaspaces() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	859 assert(DumpSharedSpaces, "only use this for dumping shared spaces");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	860 assert(this == ClassLoaderData::the_null_class_loader_data(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	861 "only supported for null loader data for now");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	862 assert (!_shared_metaspaces_initialized, "only initialize once");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	863 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	864 _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	865 _rw_metaspace = new Metaspace(_metaspace_lock, Metaspace::ReadWriteMetaspaceType);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	866 _shared_metaspaces_initialized = true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	867 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	868
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	869 Metaspace* ClassLoaderData::ro_metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	870 assert(_ro_metaspace != NULL, "should already be initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	871 return _ro_metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	872 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	873
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	874 Metaspace* ClassLoaderData::rw_metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	875 assert(_rw_metaspace != NULL, "should already be initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	876 return _rw_metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	877 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	878
20278 2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	879 ClassLoaderDataGraphKlassIteratorAtomic::ClassLoaderDataGraphKlassIteratorAtomic()
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	880 : _next_klass(NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	881 ClassLoaderData* cld = ClassLoaderDataGraph::_head;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	882 Klass* klass = NULL;
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 // Find the first klass in the CLDG.
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	885 while (cld != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	886 klass = cld->_klasses;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	887 if (klass != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	888 _next_klass = klass;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	889 return;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	890 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	891 cld = cld->next();
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 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	894
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	895 Klass* ClassLoaderDataGraphKlassIteratorAtomic::next_klass_in_cldg(Klass* klass) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	896 Klass* next = klass->next_link();
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	897 if (next != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	898 return next;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	899 }
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 // 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	902 ClassLoaderData* cld = klass->class_loader_data();
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	903 while (next == NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	904 cld = cld->next();
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	905 if (cld == NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	906 break;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	907 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	908 next = cld->_klasses;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	909 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	910
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	911 return next;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	912 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	913
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	914 Klass* ClassLoaderDataGraphKlassIteratorAtomic::next_klass() {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	915 Klass* head = (Klass*)_next_klass;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	916
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	917 while (head != NULL) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	918 Klass* next = next_klass_in_cldg(head);
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	919
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	920 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	921
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	922 if (old_head == head) {
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	923 return head; // Won the CAS.
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	924 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	925
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	926 head = old_head;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	927 }
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	928
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	929 // Nothing more for the iterator to hand out.
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	930 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	931 return NULL;
2c6ef90f030a 8049421: G1 Class Unloading after completing a concurrent mark cycle stefank parents: 20260 diff changeset	932 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	933
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	934 ClassLoaderDataGraphMetaspaceIterator::ClassLoaderDataGraphMetaspaceIterator() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	935 _data = ClassLoaderDataGraph::_head;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	938 ClassLoaderDataGraphMetaspaceIterator::~ClassLoaderDataGraphMetaspaceIterator() {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	939
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	940 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	941 // callable from debugger
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	942 extern "C" int print_loader_data_graph() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	943 ClassLoaderDataGraph::dump_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	944 return 0;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	945 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	946
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	947 void ClassLoaderDataGraph::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	948 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	949 data->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	950 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	951 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	952
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	953 void ClassLoaderDataGraph::dump_on(outputStream * const out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	954 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	955 data->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	956 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	957 MetaspaceAux::dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	958 }
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	959 #endif // PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	960
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	961 void ClassLoaderData::print_value_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	962 if (class_loader() == NULL) {
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	963 out->print("NULL class_loader");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	964 } else {
17937 78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang drchase parents: 17935 diff changeset	965 out->print("class loader " INTPTR_FORMAT, p2i(this));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	966 class_loader()->print_value_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	967 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	968 }
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	969
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	970 #if INCLUDE_TRACE
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	971
13400 86e6d691f2e1 8028128: Add a type safe alternative for working with counter based data mgronlun parents: 12995 diff changeset	972 Ticks ClassLoaderDataGraph::_class_unload_time;
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	973
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	974 void ClassLoaderDataGraph::class_unload_event(Klass* const k) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	975
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	976 // post class unload event
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	977 EventClassUnload event(UNTIMED);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	978 event.set_endtime(_class_unload_time);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	979 event.set_unloadedClass(k);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	980 oop defining_class_loader = k->class_loader();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	981 event.set_definingClassLoader(defining_class_loader != NULL ?
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	982 defining_class_loader->klass() : (Klass*)NULL);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	983 event.commit();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	984 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	985
20653 82d3e7b5277a 8065361: Fixup headers and definitions for INCLUDE_TRACE mgronlun parents: 20619 diff changeset	986 #endif // INCLUDE_TRACE

Mercurial > hg > truffle

annotate src/share/vm/classfile/classLoaderData.cpp @ 21205:f34ae5c01864