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

annotate src/share/vm/classfile/classLoaderData.cpp @ 12316:190899198332

7195622: CheckUnhandledOops has limited usefulness now Summary: Enable CHECK_UNHANDLED_OOPS in fastdebug builds across all supported platforms. Reviewed-by: coleenp, hseigel, dholmes, stefank, twisti, ihse, rdurbin Contributed-by: lois.foltan@oracle.com

author	hseigel
date	Thu, 26 Sep 2013 10:25:02 -0400
parents	f2110083203d
children	e64f1fe9756b

rev	line source
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	1 /*
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7614 diff changeset	2 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	4 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	7 * published by the Free Software Foundation.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	8 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	13 * accompanied this code).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	14 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	18 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	20 * or visit www.oracle.com if you need additional information or have any
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	21 * questions.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	22 *
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	23 */
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	24
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	25 // A ClassLoaderData identifies the full set of class types that a class
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	26 // loader's name resolution strategy produces for a given configuration of the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	27 // class loader.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	28 // Class types in the ClassLoaderData may be defined by from class file binaries
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	29 // provided by the class loader, or from other class loader it interacts with
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	30 // according to its name resolution strategy.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	31 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	32 // Class loaders that implement a deterministic name resolution strategy
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	33 // (including with respect to their delegation behavior), such as the boot, the
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	34 // extension, and the system loaders of the JDK's built-in class loader
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	35 // hierarchy, always produce the same linkset for a given configuration.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	36 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	37 // ClassLoaderData carries information related to a linkset (e.g.,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	38 // metaspace holding its klass definitions).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	39 // The System Dictionary and related data structures (e.g., placeholder table,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	40 // loader constraints table) as well as the runtime representation of classes
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	41 // only reference ClassLoaderData.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	42 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	43 // Instances of java.lang.ClassLoader holds a pointer to a ClassLoaderData that
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	44 // that represent the loader's "linking domain" in the JVM.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	45 //
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	46 // The bootstrap loader (represented by NULL) also has a ClassLoaderData,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	47 // the singleton class the_null_class_loader_data().
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	48
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	49 #include "precompiled.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	50 #include "classfile/classLoaderData.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	51 #include "classfile/classLoaderData.inline.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	52 #include "classfile/javaClasses.hpp"
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7614 diff changeset	53 #include "classfile/metadataOnStackMark.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	54 #include "classfile/systemDictionary.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	55 #include "code/codeCache.hpp"
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	56 #include "memory/gcLocker.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	57 #include "memory/metadataFactory.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	58 #include "memory/metaspaceShared.hpp"
7949 5daaddd917a1 8006040: NPG: on_stack processing wastes space in ConstantPool coleenp parents: 7614 diff changeset	59 #include "memory/oopFactory.hpp"
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	60 #include "runtime/jniHandles.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	61 #include "runtime/mutex.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	62 #include "runtime/safepoint.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	63 #include "runtime/synchronizer.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	64 #include "utilities/growableArray.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	65 #include "utilities/ostream.hpp"
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	66
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	67 #if INCLUDE_TRACE
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	68 #include "trace/tracing.hpp"
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
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	71
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	72 ClassLoaderData * ClassLoaderData::_the_null_class_loader_data = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	73
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	74 ClassLoaderData::ClassLoaderData(Handle h_class_loader, bool is_anonymous, Dependencies dependencies) :
7409 30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	75 _class_loader(h_class_loader()),
30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	76 _is_anonymous(is_anonymous), _keep_alive(is_anonymous), // initially
30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	77 _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	78 _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	79 _next(NULL), _dependencies(dependencies),
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	80 _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	81 // empty
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	82 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	83
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	84 void ClassLoaderData::init_dependencies(TRAPS) {
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	85 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	86 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	87 _dependencies.init(CHECK);
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	88 }
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	89
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	90 void ClassLoaderData::Dependencies::init(TRAPS) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	91 // 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	92 // 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	93 _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	94 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	95
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	96 bool ClassLoaderData::claim() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	97 if (_claimed == 1) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	98 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	99 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	100
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	101 return (int) Atomic::cmpxchg(1, &_claimed, 0) == 0;
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 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	105 if (must_claim && !claim()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	106 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	107 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	108
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	109 f->do_oop(&_class_loader);
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	110 _dependencies.oops_do(f);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	111 _handles->oops_do(f);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	112 if (klass_closure != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	113 classes_do(klass_closure);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	114 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	115 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	116
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	117 void ClassLoaderData::Dependencies::oops_do(OopClosure* f) {
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	118 f->do_oop((oop*)&_list_head);
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	119 }
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	120
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	121 void ClassLoaderData::classes_do(KlassClosure* klass_closure) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	122 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	123 klass_closure->do_klass(k);
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	124 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	125 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	126 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	127
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	128 void ClassLoaderData::classes_do(void f(Klass * const)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	129 for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	130 f(k);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	131 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	132 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	133
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	134 void ClassLoaderData::classes_do(void f(InstanceKlass*)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	135 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	136 if (k->oop_is_instance()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	137 f(InstanceKlass::cast(k));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	138 }
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	139 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	140 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	141 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	142
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	143 void ClassLoaderData::record_dependency(Klass* k, TRAPS) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	144 ClassLoaderData * const from_cld = this;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	145 ClassLoaderData * const to_cld = k->class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	146
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	147 // 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	148 // 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	149 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	150 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	151 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	152
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	153 oop to;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	154 if (to_cld->is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	155 // 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	156 to = k->java_mirror();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	157 } else {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	158 to = to_cld->class_loader();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	159
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	160 // 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	161 // 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	162 if (!from_cld->is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	163 // 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	164 oop from = from_cld->class_loader();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	165
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	166 oop curr = from;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	167 while (curr != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	168 if (curr == to) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	169 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	170 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	171 curr = java_lang_ClassLoader::parent(curr);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	172 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	173 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	174 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	175
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	176 // 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	177 // Must handle over GC point.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	178 Handle dependency(THREAD, to);
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	179 from_cld->_dependencies.add(dependency, CHECK);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	180 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	181
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	182
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	183 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	184 // 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	185 // 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	186 objArrayOop ok = _list_head;
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	187 objArrayOop last = NULL;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	188 while (ok != NULL) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	189 last = ok;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	190 if (ok->obj_at(0) == dependency()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	191 // Don't need to add it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	192 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	193 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	194 ok = (objArrayOop)ok->obj_at(1);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	195 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	196
7417 1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	197 // Must handle over GC points
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	198 assert (last != NULL, "dependencies should be initialized");
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	199 objArrayHandle last_handle(THREAD, last);
1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	200
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	201 // 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	202 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	203 deps->obj_at_put(0, dependency());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	204
7417 1b1e16471e46 8005002: Crash because of a raw oop in ClassLoaderData::add_dependency stefank parents: 7185 diff changeset	205 // Must handle over GC points
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	206 objArrayHandle new_dependency(THREAD, deps);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	207
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	208 // Add the dependency under lock
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	209 locked_add(last_handle, new_dependency, THREAD);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	210 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	211
9075 ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	212 void ClassLoaderData::Dependencies::locked_add(objArrayHandle last_handle,
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	213 objArrayHandle new_dependency,
ba42fd5e00e6 8010196: NPG: Internal Error: Metaspace allocation lock -- possible deadlock mgerdin parents: 8866 diff changeset	214 Thread* THREAD) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	215
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	216 // 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	217 // 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	218 // 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	219 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	220
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	221 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	222
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	223 // 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	224 objArrayOop end = last_handle();
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	225 objArrayOop last = NULL;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	226 while (end != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	227 last = end;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	228 // 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	229 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	230 // Don't need to add it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	231 return;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	232 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	233 end = (objArrayOop)end->obj_at(1);
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 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	236 // 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	237 if (last->obj_at(0) == NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	238 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	239 } else {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	240 last->obj_at_put(1, new_dependency());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	241 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	242 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	243
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	244 void ClassLoaderDataGraph::clear_claimed_marks() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	245 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	246 cld->clear_claimed();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	247 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	248 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	249
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	250 void ClassLoaderData::add_class(Klass* k) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	251 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	252 Klass* old_value = _klasses;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	253 k->set_next_link(old_value);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	254 // link the new item into the list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	255 _klasses = k;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	256
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	257 if (TraceClassLoaderData && Verbose && k->class_loader_data() != NULL) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	258 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	259 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	260 PTR_FORMAT " loader: " PTR_FORMAT " %s",
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	261 k,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	262 k->external_name(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	263 k->class_loader_data(),
12316 190899198332 7195622: CheckUnhandledOops has limited usefulness now hseigel parents: 10405 diff changeset	264 (void *)k->class_loader(),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	265 loader_name());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	266 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	267 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	268
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	269 // 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	270 // 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	271 // 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	272 void ClassLoaderData::remove_class(Klass* scratch_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	273 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	274 Klass* prev = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	275 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	276 if (k == scratch_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	277 if (prev == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	278 _klasses = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	279 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	280 Klass* next = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	281 prev->set_next_link(next);
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 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	284 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	285 prev = k;
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	286 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	287 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	288 ShouldNotReachHere(); // should have found this class!!
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	289 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	290
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	291 void ClassLoaderData::unload() {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	292 _unloading = true;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	293
10149 d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	294 // Tell serviceability tools these classes are unloading
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	295 classes_do(InstanceKlass::notify_unload_class);
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	296
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	297 if (TraceClassLoaderData) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	298 ResourceMark rm;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	299 tty->print("[ClassLoaderData: unload loader data "PTR_FORMAT, this);
12316 190899198332 7195622: CheckUnhandledOops has limited usefulness now hseigel parents: 10405 diff changeset	300 tty->print(" for instance "PTR_FORMAT" of %s", (void *)class_loader(),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	301 loader_name());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	302 if (is_anonymous()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	303 tty->print(" for anonymous class "PTR_FORMAT " ", _klasses);
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	304 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	305 tty->print_cr("]");
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	306 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	307 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	308
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	309 bool ClassLoaderData::is_alive(BoolObjectClosure* is_alive_closure) const {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	310 bool alive =
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	311 is_anonymous() ?
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	312 is_alive_closure->do_object_b(_klasses->java_mirror()) :
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	313 class_loader() == NULL \|\| is_alive_closure->do_object_b(class_loader());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	314 assert(!alive \|\| claimed(), "must be claimed");
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	315 return alive;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	316 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	317
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	318
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	319 ClassLoaderData::~ClassLoaderData() {
10149 d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	320 // 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	321 classes_do(InstanceKlass::release_C_heap_structures);
d587a5c30bd8 8011803: release_C_heap_structures is never called for anonymous classes. coleenp parents: 9075 diff changeset	322
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	323 Metaspace *m = _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	324 if (m != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	325 _metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	326 // release the metaspace
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	327 delete m;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	328 // release the handles
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	329 if (_handles != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	330 JNIHandleBlock::release_block(_handles);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	331 _handles = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	332 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	333 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	334
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	335 // Clear all the JNI handles for methods
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	336 // 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	337 // 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	338 // 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	339 // 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	340 // NULL after class unloading.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	341 if (_jmethod_ids != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	342 Method::clear_jmethod_ids(this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	343 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	344 // Delete lock
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	345 delete _metaspace_lock;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	346
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	347 // Delete free list
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	348 if (_deallocate_list != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	349 delete _deallocate_list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	350 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	351 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	352
8866 16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	353 /**
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	354 * 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	355 */
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	356 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	357 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	358 }
16885e702c88 7198429: need checked categorization of caller-sensitive methods in the JDK twisti parents: 8751 diff changeset	359
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	360 Metaspace* ClassLoaderData::metaspace_non_null() {
7614 59a58e20dc60 8006537: Assert when dumping archive with default methods jmasa parents: 7446 diff changeset	361 assert(!DumpSharedSpaces, "wrong metaspace!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	362 // 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	363 // to create smaller arena for Reflection class loaders also.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	364 // 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	365 // simply for delegating with no metadata of their own.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	366 if (_metaspace == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	367 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	368 // 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	369 if (_metaspace != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	370 return _metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	371 }
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	372 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	373 assert (class_loader() == NULL, "Must be");
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	374 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	375 } else if (is_anonymous()) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	376 if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	377 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	378 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	379 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	380 } 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	381 if (TraceClassLoaderData && Verbose && class_loader() != NULL) {
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	382 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	383 }
e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	384 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::ReflectionMetaspaceType));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	385 } else {
7446 e51c9860cf66 8005082: NPG: Add specialized Metachunk sizes for reflection and anonymous classloaders jmasa parents: 7431 diff changeset	386 set_metaspace(new Metaspace(_metaspace_lock, Metaspace::StandardMetaspaceType));
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	387 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	388 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	389 return _metaspace;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	392 JNIHandleBlock* ClassLoaderData::handles() const { return _handles; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	393 void ClassLoaderData::set_handles(JNIHandleBlock* handles) { _handles = handles; }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	394
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	395 jobject ClassLoaderData::add_handle(Handle h) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	396 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	397 if (handles() == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	398 set_handles(JNIHandleBlock::allocate_block());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	399 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	400 return handles()->allocate_handle(h());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	401 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	402
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	403 // 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	404 // 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	405 void ClassLoaderData::add_to_deallocate_list(Metadata* m) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	406 // Metadata in shared region isn't deleted.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	407 if (!m->is_shared()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	408 MutexLockerEx ml(metaspace_lock(), Mutex::_no_safepoint_check_flag);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	409 if (_deallocate_list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	410 _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	411 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	412 _deallocate_list->append_if_missing(m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	413 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	414 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	415
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	416 // 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	417 void ClassLoaderData::free_deallocate_list() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	418 // Don't need lock, at safepoint
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	419 assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	420 if (_deallocate_list == NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	421 return;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	422 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	423 // Go backwards because this removes entries that are freed.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	424 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	425 Metadata* m = _deallocate_list->at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	426 if (!m->on_stack()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	427 _deallocate_list->remove_at(i);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	428 // 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	429 // 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	430 if (m->is_method()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	431 MetadataFactory::free_metadata(this, (Method*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	432 } else if (m->is_constantPool()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	433 MetadataFactory::free_metadata(this, (ConstantPool*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	434 } else if (m->is_klass()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	435 MetadataFactory::free_metadata(this, (InstanceKlass*)m);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	436 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	437 ShouldNotReachHere();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	438 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	439 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	440 }
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
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	443 // 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	444 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	445 // 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	446 return ClassLoaderDataGraph::add(loader, true, CHECK_NULL);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	447 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	448
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	449 const char* ClassLoaderData::loader_name() {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	450 // Handles null class loader
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	451 return SystemDictionary::loader_name(class_loader());
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	452 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	453
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	454 #ifndef PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	455 // Define to dump klasses
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	456 #undef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	457
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	458 void ClassLoaderData::dump(outputStream * const out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	459 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	460 out->print("ClassLoaderData CLD: "PTR_FORMAT", loader: "PTR_FORMAT", loader_klass: "PTR_FORMAT" %s {",
12316 190899198332 7195622: CheckUnhandledOops has limited usefulness now hseigel parents: 10405 diff changeset	461 this, (void *)class_loader(),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	462 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	463 if (claimed()) out->print(" claimed ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	464 if (is_unloading()) out->print(" unloading ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	465 out->print(" handles " INTPTR_FORMAT, handles());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	466 out->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	467 if (metaspace_or_null() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	468 out->print_cr("metaspace: " PTR_FORMAT, metaspace_or_null());
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	469 metaspace_or_null()->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	470 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	471 out->print_cr("metaspace: NULL");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	472 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	473
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	474 #ifdef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	475 if (Verbose) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	476 ResourceMark rm;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	477 Klass* k = _klasses;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	478 while (k != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	479 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	480 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	481 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	482 k = k->next_link();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	483 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	484 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	485 #endif // CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	486 #undef CLD_DUMP_KLASSES
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	487 if (_jmethod_ids != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	488 Method::print_jmethod_ids(this, out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	489 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	490 out->print_cr("}");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	491 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	492 #endif // PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	493
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	494 void ClassLoaderData::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	495 oop cl = class_loader();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	496
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	497 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	498 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	499
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	500 // Verify the integrity of the allocated space.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	501 if (metaspace_or_null() != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	502 metaspace_or_null()->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	503 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	504
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	505 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	506 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	507 k->verify();
8751 1fc4d4768b90 8007725: NPG: Klass::restore_unshareable_info() triggers assert(k->java_mirror() == NULL) coleenp parents: 7956 diff changeset	508 assert(k != k->next_link(), "no loops!");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	509 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	510 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	511
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	512
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	513 // GC root of class loader data created.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	514 ClassLoaderData* ClassLoaderDataGraph::_head = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	515 ClassLoaderData* ClassLoaderDataGraph::_unloading = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	516 ClassLoaderData* ClassLoaderDataGraph::_saved_head = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	517
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	518 // 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	519 // 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	520 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	521 // 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	522 // actual ClassLoaderData object.
9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	523 ClassLoaderData::Dependencies dependencies(CHECK_NULL);
7409 30866cd626b0 8004883: NPG: clean up anonymous class fix coleenp parents: 7185 diff changeset	524
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	525 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	526 // 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	527 // contains unhandled oops
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	528
10184 9d75bcd7c890 8013136: NPG: Parallel class loading tests fail after fix for JDK-8011802 mgerdin parents: 10183 diff changeset	529 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	530
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	531
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	532 if (!is_anonymous) {
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	533 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	534 // First, Atomically set it
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	535 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	536 if (old != NULL) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	537 delete cld;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	538 // Returns the data.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	539 return old;
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	540 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	541 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	542
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	543 // 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	544 // class loader data
10181 1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	545 ClassLoaderData** list_head = &_head;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	546 ClassLoaderData* next = _head;
1cb4795305b9 8011802: NPG: init_dependencies in class loader data graph can cause invalid CLD mgerdin parents: 10175 diff changeset	547
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	548 do {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	549 cld->set_next(next);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	550 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	551 if (exchanged == next) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	552 if (TraceClassLoaderData) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	553 ResourceMark rm;
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	554 tty->print("[ClassLoaderData: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	555 tty->print("create class loader data "PTR_FORMAT, cld);
12316 190899198332 7195622: CheckUnhandledOops has limited usefulness now hseigel parents: 10405 diff changeset	556 tty->print(" for instance "PTR_FORMAT" of %s", (void *)cld->class_loader(),
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	557 cld->loader_name());
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	558 tty->print_cr("]");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	559 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	560 return cld;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	561 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	562 next = exchanged;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	563 } while (true);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	564
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	565 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	566
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	567 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	568 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	569 cld->oops_do(f, klass_closure, must_claim);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	570 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	571 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	572
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	573 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	574 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	575 if (cld->keep_alive()) {
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	576 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	577 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	578 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	579 }
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	580
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	581 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	582 if (ClassUnloading) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	583 ClassLoaderData::the_null_class_loader_data()->oops_do(f, klass_closure, must_claim);
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	584 // keep any special CLDs alive.
90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	585 ClassLoaderDataGraph::keep_alive_oops_do(f, klass_closure, must_claim);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	586 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	587 ClassLoaderDataGraph::oops_do(f, klass_closure, must_claim);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	588 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	589 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	590
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	591 void ClassLoaderDataGraph::classes_do(KlassClosure* klass_closure) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	592 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	593 cld->classes_do(klass_closure);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	594 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	595 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	596
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	597 void ClassLoaderDataGraph::classes_do(void f(Klass* const)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	598 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	599 cld->classes_do(f);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	600 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	601 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	602
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	603 void ClassLoaderDataGraph::classes_unloading_do(void f(Klass* const)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	604 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	605 for (ClassLoaderData* cld = _unloading; cld != NULL; cld = cld->next()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	606 cld->classes_do(f);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	607 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	608 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	609
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	610 GrowableArray<ClassLoaderData> ClassLoaderDataGraph::new_clds() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	611 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	612
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	613 GrowableArray<ClassLoaderData> array = new GrowableArray<ClassLoaderData*>();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	614
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	615 // 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	616 ClassLoaderData* curr = _head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	617 while (curr != _saved_head) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	618 if (!curr->claimed()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	619 array->push(curr);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	620
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	621 if (TraceClassLoaderData) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	622 tty->print("[ClassLoaderData] found new CLD: ");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	623 curr->print_value_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	624 tty->cr();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	625 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	626 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	627
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	628 curr = curr->_next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	629 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	630
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	631 return array;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	632 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	633
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	634 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	635 // for debugging and hsfind(x)
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	636 bool ClassLoaderDataGraph::contains(address x) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	637 // I think we need the _metaspace_lock taken here because the class loader
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	638 // data graph could be changing while we are walking it (new entries added,
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	639 // new entries being unloaded, etc).
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	640 if (DumpSharedSpaces) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	641 // There are only two metaspaces to worry about.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	642 ClassLoaderData* ncld = ClassLoaderData::the_null_class_loader_data();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	643 return (ncld->ro_metaspace()->contains(x) \|\| ncld->rw_metaspace()->contains(x));
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	644 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	645
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	646 if (UseSharedSpaces && MetaspaceShared::is_in_shared_space(x)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	647 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	648 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	649
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	650 for (ClassLoaderData* cld = _head; cld != NULL; cld = cld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	651 if (cld->metaspace_or_null() != NULL && cld->metaspace_or_null()->contains(x)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	652 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	653 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	654 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	655
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	656 // Could also be on an unloading list which is okay, ie. still allocated
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	657 // for a little while.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	658 for (ClassLoaderData* ucld = _unloading; ucld != NULL; ucld = ucld->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	659 if (ucld->metaspace_or_null() != NULL && ucld->metaspace_or_null()->contains(x)) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	660 return true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	661 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	662 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	663 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	664 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	665
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	666 bool ClassLoaderDataGraph::contains_loader_data(ClassLoaderData* loader_data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	667 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	668 if (loader_data == data) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	669 return true;
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 return false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	674 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	675 #endif // PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	676
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	677
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	678 // 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	679 // and deallocation later.
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	680 bool ClassLoaderDataGraph::do_unloading(BoolObjectClosure* is_alive_closure) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	681 ClassLoaderData* data = _head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	682 ClassLoaderData* prev = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	683 bool seen_dead_loader = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	684 // mark metadata seen on the stack and code cache so we can delete
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	685 // unneeded entries.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	686 bool has_redefined_a_class = JvmtiExport::has_redefined_a_class();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	687 MetadataOnStackMark md_on_stack;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	688 while (data != NULL) {
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	689 if (data->keep_alive() \|\| data->is_alive(is_alive_closure)) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	690 if (has_redefined_a_class) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	691 data->classes_do(InstanceKlass::purge_previous_versions);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	692 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	693 data->free_deallocate_list();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	694 prev = data;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	695 data = data->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	696 continue;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	697 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	698 seen_dead_loader = true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	699 ClassLoaderData* dead = data;
7185 90273fc0a981 8000662: NPG: nashorn ant clean test262 out-of-memory with Java heap coleenp parents: 6725 diff changeset	700 dead->unload();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	701 data = data->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	702 // Remove from loader list.
10183 868d87ed63c8 8008966: NPG: Inefficient Metaspace counter functions cause large young GC regressions jmasa parents: 10181 diff changeset	703 // 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	704 // in the ClassLoaderDataGraph.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	705 if (prev != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	706 prev->set_next(data);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	707 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	708 assert(dead == _head, "sanity check");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	709 _head = data;
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 dead->set_next(_unloading);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	712 _unloading = dead;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	713 }
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	714
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	715 if (seen_dead_loader) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	716 post_class_unload_events();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	717 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	718
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	719 return seen_dead_loader;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	720 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	721
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	722 void ClassLoaderDataGraph::purge() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	723 ClassLoaderData* list = _unloading;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	724 _unloading = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	725 ClassLoaderData* next = list;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	726 while (next != NULL) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	727 ClassLoaderData* purge_me = next;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	728 next = purge_me->next();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	729 delete purge_me;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	730 }
10175 c23dbf0e8ab7 8011268: NPG: Free unused VirtualSpaceNodes jmasa parents: 9075 diff changeset	731 Metaspace::purge();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	732 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	733
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	734 void ClassLoaderDataGraph::post_class_unload_events(void) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	735 #if INCLUDE_TRACE
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	736 assert(SafepointSynchronize::is_at_safepoint(), "must be at safepoint!");
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	737 if (Tracing::enabled()) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	738 if (Tracing::is_event_enabled(TraceClassUnloadEvent)) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	739 assert(_unloading != NULL, "need class loader data unload list!");
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	740 _class_unload_time = Tracing::time();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	741 classes_unloading_do(&class_unload_event);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	742 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	743 Tracing::on_unloading_classes();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	744 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	745 #endif
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	746 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	747
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	748 // CDS support
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	749
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	750 // 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	751 // 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	752 // sort of looks like it.
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	753 Metaspace* ClassLoaderData::_ro_metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	754 Metaspace* ClassLoaderData::_rw_metaspace = NULL;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	755 static bool _shared_metaspaces_initialized = false;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	756
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	757 // 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	758 void ClassLoaderData::initialize_shared_metaspaces() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	759 assert(DumpSharedSpaces, "only use this for dumping shared spaces");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	760 assert(this == ClassLoaderData::the_null_class_loader_data(),
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	761 "only supported for null loader data for now");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	762 assert (!_shared_metaspaces_initialized, "only initialize once");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	763 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	764 _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	765 _rw_metaspace = new Metaspace(_metaspace_lock, Metaspace::ReadWriteMetaspaceType);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	766 _shared_metaspaces_initialized = true;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	767 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	768
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	769 Metaspace* ClassLoaderData::ro_metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	770 assert(_ro_metaspace != NULL, "should already be initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	771 return _ro_metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	772 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	773
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	774 Metaspace* ClassLoaderData::rw_metaspace() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	775 assert(_rw_metaspace != NULL, "should already be initialized");
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	776 return _rw_metaspace;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	777 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	778
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	779
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	780 ClassLoaderDataGraphMetaspaceIterator::ClassLoaderDataGraphMetaspaceIterator() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	781 _data = ClassLoaderDataGraph::_head;
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	782 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	783
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	784 ClassLoaderDataGraphMetaspaceIterator::~ClassLoaderDataGraphMetaspaceIterator() {}
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	785
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	786 #ifndef PRODUCT
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	787 // callable from debugger
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	788 extern "C" int print_loader_data_graph() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	789 ClassLoaderDataGraph::dump_on(tty);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	790 return 0;
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
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	793 void ClassLoaderDataGraph::verify() {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	794 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	795 data->verify();
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	796 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	797 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	798
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	799 void ClassLoaderDataGraph::dump_on(outputStream * const out) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	800 for (ClassLoaderData* data = _head; data != NULL; data = data->next()) {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	801 data->dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	802 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	803 MetaspaceAux::dump(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	804 }
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	805 #endif // PRODUCT
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	806
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	807 void ClassLoaderData::print_value_on(outputStream* out) const {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	808 if (class_loader() == NULL) {
7956 16fb9f942703 6479360: PrintClassHistogram improvements acorn parents: 7949 diff changeset	809 out->print("NULL class_loader");
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	810 } else {
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	811 out->print("class loader "PTR_FORMAT, this);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	812 class_loader()->print_value_on(out);
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	813 }
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: diff changeset	814 }
10405 f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	815
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	816 #if INCLUDE_TRACE
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	817
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	818 TracingTime ClassLoaderDataGraph::_class_unload_time;
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	819
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	820 void ClassLoaderDataGraph::class_unload_event(Klass* const k) {
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	821
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	822 // post class unload event
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	823 EventClassUnload event(UNTIMED);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	824 event.set_endtime(_class_unload_time);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	825 event.set_unloadedClass(k);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	826 oop defining_class_loader = k->class_loader();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	827 event.set_definingClassLoader(defining_class_loader != NULL ?
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	828 defining_class_loader->klass() : (Klass*)NULL);
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	829 event.commit();
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	830 }
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	831
f2110083203d 8005849: JEP 167: Event-Based JVM Tracing sla parents: 10193 diff changeset	832 #endif /* INCLUDE_TRACE */

Mercurial > hg > truffle

annotate src/share/vm/classfile/classLoaderData.cpp @ 12316:190899198332