truffle: src/share/vm/oops/instanceRefKlass.cpp annotate

annotate src/share/vm/oops/instanceRefKlass.cpp @ 6735:aed758eda82a

7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass Summary: Simple renaming to be consistent with instanceKlass->InstanceKlass renaming Reviewed-by: stefank, jmasa

author	coleenp
date	Fri, 07 Sep 2012 12:04:16 -0400
parents	da91efe96a93
children	db9981fd3124

rev	line source
0 a61af66fc99e Initial load duke parents: diff changeset	1 /*
6008 b632e80fc9dc 4988100: oop_verify_old_oop appears to be dead brutisso parents: 3929 diff changeset	2 * Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
0 a61af66fc99e Initial load duke parents: diff changeset	3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
a61af66fc99e Initial load duke parents: diff changeset	4 *
a61af66fc99e Initial load duke parents: diff changeset	5 * This code is free software; you can redistribute it and/or modify it
a61af66fc99e Initial load duke parents: diff changeset	6 * under the terms of the GNU General Public License version 2 only, as
a61af66fc99e Initial load duke parents: diff changeset	7 * published by the Free Software Foundation.
a61af66fc99e Initial load duke parents: diff changeset	8 *
a61af66fc99e Initial load duke parents: diff changeset	9 * This code is distributed in the hope that it will be useful, but WITHOUT
a61af66fc99e Initial load duke parents: diff changeset	10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
a61af66fc99e Initial load duke parents: diff changeset	11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
a61af66fc99e Initial load duke parents: diff changeset	12 * version 2 for more details (a copy is included in the LICENSE file that
a61af66fc99e Initial load duke parents: diff changeset	13 * accompanied this code).
a61af66fc99e Initial load duke parents: diff changeset	14 *
a61af66fc99e Initial load duke parents: diff changeset	15 * You should have received a copy of the GNU General Public License version
a61af66fc99e Initial load duke parents: diff changeset	16 * 2 along with this work; if not, write to the Free Software Foundation,
a61af66fc99e Initial load duke parents: diff changeset	17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
a61af66fc99e Initial load duke parents: diff changeset	18 *
1552 c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1144 diff changeset	19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1144 diff changeset	20 * or visit www.oracle.com if you need additional information or have any
c18cbe5936b8 6941466: Oracle rebranding changes for Hotspot repositories trims parents: 1144 diff changeset	21 * questions.
0 a61af66fc99e Initial load duke parents: diff changeset	22 *
a61af66fc99e Initial load duke parents: diff changeset	23 */
a61af66fc99e Initial load duke parents: diff changeset	24
1972 f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	25 #include "precompiled.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	26 #include "classfile/javaClasses.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	27 #include "classfile/systemDictionary.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	28 #include "gc_implementation/shared/markSweep.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	29 #include "gc_interface/collectedHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	30 #include "gc_interface/collectedHeap.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	31 #include "memory/genCollectedHeap.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	32 #include "memory/genOopClosures.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	33 #include "oops/instanceRefKlass.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	34 #include "oops/oop.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	35 #include "utilities/preserveException.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	36 #ifndef SERIALGC
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	37 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	38 #include "gc_implementation/g1/g1OopClosures.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	39 #include "gc_implementation/g1/g1RemSet.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	40 #include "gc_implementation/g1/heapRegionSeq.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	41 #include "gc_implementation/parNew/parOopClosures.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	42 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	43 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	44 #include "oops/oop.pcgc.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot stefank parents: 1706 diff changeset	45 #endif
0 a61af66fc99e Initial load duke parents: diff changeset	46
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	47 template <class T>
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	48 void specialized_oop_follow_contents(InstanceRefKlass* ref, oop obj) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	49 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	50 T heap_oop = oopDesc::load_heap_oop(referent_addr);
0 a61af66fc99e Initial load duke parents: diff changeset	51 debug_only(
a61af66fc99e Initial load duke parents: diff changeset	52 if(TraceReferenceGC && PrintGCDetails) {
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	53 gclog_or_tty->print_cr("InstanceRefKlass::oop_follow_contents " INTPTR_FORMAT, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	54 }
a61af66fc99e Initial load duke parents: diff changeset	55 )
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	56 if (!oopDesc::is_null(heap_oop)) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	57 oop referent = oopDesc::decode_heap_oop_not_null(heap_oop);
0 a61af66fc99e Initial load duke parents: diff changeset	58 if (!referent->is_gc_marked() &&
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	59 MarkSweep::ref_processor()->discover_reference(obj, ref->reference_type())) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	60 // reference was discovered, referent will be traversed later
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	61 ref->InstanceKlass::oop_follow_contents(obj);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	62 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	63 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	64 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	65 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	66 )
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	67 return;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	68 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	69 // treat referent as normal oop
0 a61af66fc99e Initial load duke parents: diff changeset	70 debug_only(
a61af66fc99e Initial load duke parents: diff changeset	71 if(TraceReferenceGC && PrintGCDetails) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	72 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	73 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	74 )
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	75 MarkSweep::mark_and_push(referent_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	76 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	77 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	78 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	79 if (ReferenceProcessor::pending_list_uses_discovered_field()) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	80 // Treat discovered as normal oop, if ref is not "active",
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	81 // i.e. if next is non-NULL.
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	82 T next_oop = oopDesc::load_heap_oop(next_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	83 if (!oopDesc::is_null(next_oop)) { // i.e. ref is not "active"
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	84 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	85 debug_only(
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	86 if(TraceReferenceGC && PrintGCDetails) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	87 gclog_or_tty->print_cr(" Process discovered as normal "
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	88 INTPTR_FORMAT, discovered_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	89 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	90 )
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	91 MarkSweep::mark_and_push(discovered_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	92 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	93 } else {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	94 #ifdef ASSERT
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	95 // In the case of older JDKs which do not use the discovered
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	96 // field for the pending list, an inactive ref (next != NULL)
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	97 // must always have a NULL discovered field.
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	98 oop next = oopDesc::load_decode_heap_oop(next_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	99 oop discovered = java_lang_ref_Reference::discovered(obj);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	100 assert(oopDesc::is_null(next) \|\| oopDesc::is_null(discovered),
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	101 err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL discovered field",
3929 f94227b6117b 7090259: Fix hotspot sources to build with old compilers kvn parents: 3917 diff changeset	102 (oopDesc*)obj));
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	103 #endif
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	104 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	105 // treat next as normal oop. next is a link in the reference queue.
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	106 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	107 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	108 gclog_or_tty->print_cr(" Process next as normal " INTPTR_FORMAT, next_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	109 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	110 )
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	111 MarkSweep::mark_and_push(next_addr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	112 ref->InstanceKlass::oop_follow_contents(obj);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	113 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	114
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	115 void InstanceRefKlass::oop_follow_contents(oop obj) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	116 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	117 specialized_oop_follow_contents<narrowOop>(this, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	118 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	119 specialized_oop_follow_contents<oop>(this, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	120 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	121 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	122
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	123 #ifndef SERIALGC
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	124 template <class T>
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	125 void specialized_oop_follow_contents(InstanceRefKlass* ref,
1123 167c2986d91b 6843629: Make current hotspot build part of jdk5 control build phh parents: 948 diff changeset	126 ParCompactionManager* cm,
167c2986d91b 6843629: Make current hotspot build part of jdk5 control build phh parents: 948 diff changeset	127 oop obj) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	128 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	129 T heap_oop = oopDesc::load_heap_oop(referent_addr);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	130 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	131 if(TraceReferenceGC && PrintGCDetails) {
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	132 gclog_or_tty->print_cr("InstanceRefKlass::oop_follow_contents " INTPTR_FORMAT, obj);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	133 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	134 )
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	135 if (!oopDesc::is_null(heap_oop)) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	136 oop referent = oopDesc::decode_heap_oop_not_null(heap_oop);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	137 if (PSParallelCompact::mark_bitmap()->is_unmarked(referent) &&
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	138 PSParallelCompact::ref_processor()->
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	139 discover_reference(obj, ref->reference_type())) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	140 // reference already enqueued, referent will be traversed later
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	141 ref->InstanceKlass::oop_follow_contents(cm, obj);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	142 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	143 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	144 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	145 }
a61af66fc99e Initial load duke parents: diff changeset	146 )
a61af66fc99e Initial load duke parents: diff changeset	147 return;
a61af66fc99e Initial load duke parents: diff changeset	148 } else {
a61af66fc99e Initial load duke parents: diff changeset	149 // treat referent as normal oop
a61af66fc99e Initial load duke parents: diff changeset	150 debug_only(
a61af66fc99e Initial load duke parents: diff changeset	151 if(TraceReferenceGC && PrintGCDetails) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	152 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	153 }
a61af66fc99e Initial load duke parents: diff changeset	154 )
a61af66fc99e Initial load duke parents: diff changeset	155 PSParallelCompact::mark_and_push(cm, referent_addr);
a61af66fc99e Initial load duke parents: diff changeset	156 }
a61af66fc99e Initial load duke parents: diff changeset	157 }
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	158 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	159 if (ReferenceProcessor::pending_list_uses_discovered_field()) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	160 // Treat discovered as normal oop, if ref is not "active",
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	161 // i.e. if next is non-NULL.
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	162 T next_oop = oopDesc::load_heap_oop(next_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	163 if (!oopDesc::is_null(next_oop)) { // i.e. ref is not "active"
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	164 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	165 debug_only(
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	166 if(TraceReferenceGC && PrintGCDetails) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	167 gclog_or_tty->print_cr(" Process discovered as normal "
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	168 INTPTR_FORMAT, discovered_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	169 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	170 )
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	171 PSParallelCompact::mark_and_push(cm, discovered_addr);
0 a61af66fc99e Initial load duke parents: diff changeset	172 }
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	173 } else {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	174 #ifdef ASSERT
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	175 // In the case of older JDKs which do not use the discovered
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	176 // field for the pending list, an inactive ref (next != NULL)
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	177 // must always have a NULL discovered field.
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	178 T next = oopDesc::load_heap_oop(next_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	179 oop discovered = java_lang_ref_Reference::discovered(obj);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	180 assert(oopDesc::is_null(next) \|\| oopDesc::is_null(discovered),
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	181 err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL discovered field",
3929 f94227b6117b 7090259: Fix hotspot sources to build with old compilers kvn parents: 3917 diff changeset	182 (oopDesc*)obj));
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	183 #endif
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	184 }
0 a61af66fc99e Initial load duke parents: diff changeset	185 PSParallelCompact::mark_and_push(cm, next_addr);
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	186 ref->InstanceKlass::oop_follow_contents(cm, obj);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	187 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	188
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	189 void InstanceRefKlass::oop_follow_contents(ParCompactionManager* cm,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	190 oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	191 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	192 specialized_oop_follow_contents<narrowOop>(this, cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	193 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	194 specialized_oop_follow_contents<oop>(this, cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	195 }
0 a61af66fc99e Initial load duke parents: diff changeset	196 }
a61af66fc99e Initial load duke parents: diff changeset	197 #endif // SERIALGC
a61af66fc99e Initial load duke parents: diff changeset	198
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	199 #ifdef ASSERT
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	200 template <class T> void trace_reference_gc(const char *s, oop obj,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	201 T* referent_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	202 T* next_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	203 T* discovered_addr) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	204 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	205 gclog_or_tty->print_cr("%s obj " INTPTR_FORMAT, s, (address)obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	206 gclog_or_tty->print_cr(" referent_addr/* " INTPTR_FORMAT " / "
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	207 INTPTR_FORMAT, referent_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	208 referent_addr ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	209 (address)oopDesc::load_decode_heap_oop(referent_addr) : NULL);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	210 gclog_or_tty->print_cr(" next_addr/* " INTPTR_FORMAT " / "
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	211 INTPTR_FORMAT, next_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	212 next_addr ? (address)oopDesc::load_decode_heap_oop(next_addr) : NULL);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	213 gclog_or_tty->print_cr(" discovered_addr/* " INTPTR_FORMAT " / "
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	214 INTPTR_FORMAT, discovered_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	215 discovered_addr ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	216 (address)oopDesc::load_decode_heap_oop(discovered_addr) : NULL);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	217 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	218 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	219 #endif
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	220
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	221 template <class T> void specialized_oop_adjust_pointers(InstanceRefKlass *ref, oop obj) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	222 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	223 MarkSweep::adjust_pointer(referent_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	224 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	225 MarkSweep::adjust_pointer(next_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	226 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	227 MarkSweep::adjust_pointer(discovered_addr);
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	228 debug_only(trace_reference_gc("InstanceRefKlass::oop_adjust_pointers", obj,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	229 referent_addr, next_addr, discovered_addr);)
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	230 }
0 a61af66fc99e Initial load duke parents: diff changeset	231
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	232 int InstanceRefKlass::oop_adjust_pointers(oop obj) {
0 a61af66fc99e Initial load duke parents: diff changeset	233 int size = size_helper();
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	234 InstanceKlass::oop_adjust_pointers(obj);
0 a61af66fc99e Initial load duke parents: diff changeset	235
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	236 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	237 specialized_oop_adjust_pointers<narrowOop>(this, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	238 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	239 specialized_oop_adjust_pointers<oop>(this, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	240 }
a61af66fc99e Initial load duke parents: diff changeset	241 return size;
a61af66fc99e Initial load duke parents: diff changeset	242 }
a61af66fc99e Initial load duke parents: diff changeset	243
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	244 #define InstanceRefKlass_SPECIALIZED_OOP_ITERATE(T, nv_suffix, contains) \
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	245 T* disc_addr = (T*)java_lang_ref_Reference::discovered_addr(obj); \
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	246 if (closure->apply_to_weak_ref_discovered_field()) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	247 closure->do_oop##nv_suffix(disc_addr); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	248 } \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	249 \
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	250 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); \
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	251 T heap_oop = oopDesc::load_heap_oop(referent_addr); \
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	252 ReferenceProcessor* rp = closure->_ref_processor; \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	253 if (!oopDesc::is_null(heap_oop)) { \
845 df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps ysr parents: 356 diff changeset	254 oop referent = oopDesc::decode_heap_oop_not_null(heap_oop); \
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	255 if (!referent->is_gc_marked() && (rp != NULL) && \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	256 rp->discover_reference(obj, reference_type())) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	257 return size; \
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	258 } else if (contains(referent_addr)) { \
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	259 /* treat referent as normal oop */ \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	260 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk);\
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	261 closure->do_oop##nv_suffix(referent_addr); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	262 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	263 } \
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	264 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	265 if (ReferenceProcessor::pending_list_uses_discovered_field()) { \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	266 T next_oop = oopDesc::load_heap_oop(next_addr); \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	267 /* Treat discovered as normal oop, if ref is not "active" (next non-NULL) */\
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	268 if (!oopDesc::is_null(next_oop) && contains(disc_addr)) { \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	269 /* i.e. ref is not "active" */ \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	270 debug_only( \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	271 if(TraceReferenceGC && PrintGCDetails) { \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	272 gclog_or_tty->print_cr(" Process discovered as normal " \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	273 INTPTR_FORMAT, disc_addr); \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	274 } \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	275 ) \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	276 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk);\
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	277 closure->do_oop##nv_suffix(disc_addr); \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	278 } \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	279 } else { \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	280 /* In the case of older JDKs which do not use the discovered field for */ \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	281 /* the pending list, an inactive ref (next != NULL) must always have a */ \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	282 /* NULL discovered field. */ \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	283 debug_only( \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	284 T next_oop = oopDesc::load_heap_oop(next_addr); \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	285 T disc_oop = oopDesc::load_heap_oop(disc_addr); \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	286 assert(oopDesc::is_null(next_oop) \|\| oopDesc::is_null(disc_oop), \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	287 err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL" \
3929 f94227b6117b 7090259: Fix hotspot sources to build with old compilers kvn parents: 3917 diff changeset	288 "discovered field", (oopDesc*)obj)); \
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	289 ) \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	290 } \
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	291 /* treat next as normal oop */ \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	292 if (contains(next_addr)) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	293 SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	294 closure->do_oop##nv_suffix(next_addr); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	295 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	296 return size; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	297
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	298
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	299 template <class T> bool contains(T *t) { return true; }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	300
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	301 // Macro to define InstanceRefKlass::oop_oop_iterate for virtual/nonvirtual for
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	302 // all closures. Macros calling macros above for each oop size.
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	303
0 a61af66fc99e Initial load duke parents: diff changeset	304 #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
a61af66fc99e Initial load duke parents: diff changeset	305 \
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	306 int InstanceRefKlass:: \
0 a61af66fc99e Initial load duke parents: diff changeset	307 oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \
a61af66fc99e Initial load duke parents: diff changeset	308 /* Get size before changing pointers */ \
a61af66fc99e Initial load duke parents: diff changeset	309 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
a61af66fc99e Initial load duke parents: diff changeset	310 \
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	311 int size = InstanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \
0 a61af66fc99e Initial load duke parents: diff changeset	312 \
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	313 if (UseCompressedOops) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	314 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, contains); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	315 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	316 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \
0 a61af66fc99e Initial load duke parents: diff changeset	317 } \
a61af66fc99e Initial load duke parents: diff changeset	318 }
a61af66fc99e Initial load duke parents: diff changeset	319
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	320 #ifndef SERIALGC
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	321 #define InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	322 \
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	323 int InstanceRefKlass:: \
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	324 oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	325 /* Get size before changing pointers */ \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	326 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	327 \
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	328 int size = InstanceKlass::oop_oop_iterate_backwards##nv_suffix(obj, closure); \
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	329 \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	330 if (UseCompressedOops) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	331 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, contains); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	332 } else { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	333 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	334 } \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	335 }
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	336 #endif // !SERIALGC
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	337
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	338
0 a61af66fc99e Initial load duke parents: diff changeset	339 #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \
a61af66fc99e Initial load duke parents: diff changeset	340 \
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	341 int InstanceRefKlass:: \
0 a61af66fc99e Initial load duke parents: diff changeset	342 oop_oop_iterate##nv_suffix##_m(oop obj, \
a61af66fc99e Initial load duke parents: diff changeset	343 OopClosureType* closure, \
a61af66fc99e Initial load duke parents: diff changeset	344 MemRegion mr) { \
a61af66fc99e Initial load duke parents: diff changeset	345 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
a61af66fc99e Initial load duke parents: diff changeset	346 \
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	347 int size = InstanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr); \
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	348 if (UseCompressedOops) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	349 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, mr.contains); \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	350 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	351 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, mr.contains); \
0 a61af66fc99e Initial load duke parents: diff changeset	352 } \
a61af66fc99e Initial load duke parents: diff changeset	353 }
a61af66fc99e Initial load duke parents: diff changeset	354
a61af66fc99e Initial load duke parents: diff changeset	355 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	356 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	357 #ifndef SERIALGC
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	358 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	359 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	360 #endif // SERIALGC
0 a61af66fc99e Initial load duke parents: diff changeset	361 ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	362 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
0 a61af66fc99e Initial load duke parents: diff changeset	363
a61af66fc99e Initial load duke parents: diff changeset	364 #ifndef SERIALGC
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	365 template <class T>
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	366 void specialized_oop_push_contents(InstanceRefKlass *ref,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	367 PSPromotionManager* pm, oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	368 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	369 if (PSScavenge::should_scavenge(referent_addr)) {
0 a61af66fc99e Initial load duke parents: diff changeset	370 ReferenceProcessor* rp = PSScavenge::reference_processor();
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	371 if (rp->discover_reference(obj, ref->reference_type())) {
0 a61af66fc99e Initial load duke parents: diff changeset	372 // reference already enqueued, referent and next will be traversed later
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	373 ref->InstanceKlass::oop_push_contents(pm, obj);
0 a61af66fc99e Initial load duke parents: diff changeset	374 return;
a61af66fc99e Initial load duke parents: diff changeset	375 } else {
a61af66fc99e Initial load duke parents: diff changeset	376 // treat referent as normal oop
a61af66fc99e Initial load duke parents: diff changeset	377 pm->claim_or_forward_depth(referent_addr);
a61af66fc99e Initial load duke parents: diff changeset	378 }
a61af66fc99e Initial load duke parents: diff changeset	379 }
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	380 // Treat discovered as normal oop, if ref is not "active",
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	381 // i.e. if next is non-NULL.
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	382 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	383 if (ReferenceProcessor::pending_list_uses_discovered_field()) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	384 T next_oop = oopDesc::load_heap_oop(next_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	385 if (!oopDesc::is_null(next_oop)) { // i.e. ref is not "active"
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	386 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	387 debug_only(
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	388 if(TraceReferenceGC && PrintGCDetails) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	389 gclog_or_tty->print_cr(" Process discovered as normal "
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	390 INTPTR_FORMAT, discovered_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	391 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	392 )
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	393 if (PSScavenge::should_scavenge(discovered_addr)) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	394 pm->claim_or_forward_depth(discovered_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	395 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	396 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	397 } else {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	398 #ifdef ASSERT
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	399 // In the case of older JDKs which do not use the discovered
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	400 // field for the pending list, an inactive ref (next != NULL)
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	401 // must always have a NULL discovered field.
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	402 oop next = oopDesc::load_decode_heap_oop(next_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	403 oop discovered = java_lang_ref_Reference::discovered(obj);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	404 assert(oopDesc::is_null(next) \|\| oopDesc::is_null(discovered),
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	405 err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL discovered field",
3929 f94227b6117b 7090259: Fix hotspot sources to build with old compilers kvn parents: 3917 diff changeset	406 (oopDesc*)obj));
3917 eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	407 #endif
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	408 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	409
eca1193ca245 4965777: GC changes to support use of discovered field for pending references ysr parents: 3377 diff changeset	410 // Treat next as normal oop; next is a link in the reference queue.
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	411 if (PSScavenge::should_scavenge(next_addr)) {
0 a61af66fc99e Initial load duke parents: diff changeset	412 pm->claim_or_forward_depth(next_addr);
a61af66fc99e Initial load duke parents: diff changeset	413 }
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	414 ref->InstanceKlass::oop_push_contents(pm, obj);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	415 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	416
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	417 void InstanceRefKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	418 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	419 specialized_oop_push_contents<narrowOop>(this, pm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	420 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	421 specialized_oop_push_contents<oop>(this, pm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	422 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	423 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	424
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	425 template <class T>
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	426 void specialized_oop_update_pointers(InstanceRefKlass *ref,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	427 ParCompactionManager* cm, oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	428 T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	429 PSParallelCompact::adjust_pointer(referent_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	430 T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	431 PSParallelCompact::adjust_pointer(next_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	432 T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	433 PSParallelCompact::adjust_pointer(discovered_addr);
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	434 debug_only(trace_reference_gc("InstanceRefKlass::oop_update_ptrs", obj,
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	435 referent_addr, next_addr, discovered_addr);)
0 a61af66fc99e Initial load duke parents: diff changeset	436 }
a61af66fc99e Initial load duke parents: diff changeset	437
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	438 int InstanceRefKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	439 InstanceKlass::oop_update_pointers(cm, obj);
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	440 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	441 specialized_oop_update_pointers<narrowOop>(this, cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	442 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	443 specialized_oop_update_pointers<oop>(this, cm, obj);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	444 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	445 return size_helper();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	446 }
0 a61af66fc99e Initial load duke parents: diff changeset	447 #endif // SERIALGC
a61af66fc99e Initial load duke parents: diff changeset	448
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	449 void InstanceRefKlass::update_nonstatic_oop_maps(Klass* k) {
0 a61af66fc99e Initial load duke parents: diff changeset	450 // Clear the nonstatic oop-map entries corresponding to referent
a61af66fc99e Initial load duke parents: diff changeset	451 // and nextPending field. They are treated specially by the
a61af66fc99e Initial load duke parents: diff changeset	452 // garbage collector.
a61af66fc99e Initial load duke parents: diff changeset	453 // The discovered field is used only by the garbage collector
a61af66fc99e Initial load duke parents: diff changeset	454 // and is also treated specially.
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	455 InstanceKlass* ik = InstanceKlass::cast(k);
0 a61af66fc99e Initial load duke parents: diff changeset	456
a61af66fc99e Initial load duke parents: diff changeset	457 // Check that we have the right class
a61af66fc99e Initial load duke parents: diff changeset	458 debug_only(static bool first_time = true);
1142 4ce7240d622c 6914300: ciEnv should export all well known classes never parents: 948 diff changeset	459 assert(k == SystemDictionary::Reference_klass() && first_time,
0 a61af66fc99e Initial load duke parents: diff changeset	460 "Invalid update of maps");
a61af66fc99e Initial load duke parents: diff changeset	461 debug_only(first_time = false);
938 b37c246bf7ce 6861660: OopMapBlock count/size confusion jcoomes parents: 845 diff changeset	462 assert(ik->nonstatic_oop_map_count() == 1, "just checking");
0 a61af66fc99e Initial load duke parents: diff changeset	463
a61af66fc99e Initial load duke parents: diff changeset	464 OopMapBlock* map = ik->start_of_nonstatic_oop_maps();
a61af66fc99e Initial load duke parents: diff changeset	465
a61af66fc99e Initial load duke parents: diff changeset	466 // Check that the current map is (2,4) - currently points at field with
a61af66fc99e Initial load duke parents: diff changeset	467 // offset 2 (words) and has 4 map entries.
a61af66fc99e Initial load duke parents: diff changeset	468 debug_only(int offset = java_lang_ref_Reference::referent_offset);
939 9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception jcoomes parents: 938 diff changeset	469 debug_only(unsigned int count = ((java_lang_ref_Reference::discovered_offset -
113 ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes coleenp parents: 0 diff changeset	470 java_lang_ref_Reference::referent_offset)/heapOopSize) + 1);
0 a61af66fc99e Initial load duke parents: diff changeset	471
a61af66fc99e Initial load duke parents: diff changeset	472 if (UseSharedSpaces) {
a61af66fc99e Initial load duke parents: diff changeset	473 assert(map->offset() == java_lang_ref_Reference::queue_offset &&
938 b37c246bf7ce 6861660: OopMapBlock count/size confusion jcoomes parents: 845 diff changeset	474 map->count() == 1, "just checking");
0 a61af66fc99e Initial load duke parents: diff changeset	475 } else {
938 b37c246bf7ce 6861660: OopMapBlock count/size confusion jcoomes parents: 845 diff changeset	476 assert(map->offset() == offset && map->count() == count,
0 a61af66fc99e Initial load duke parents: diff changeset	477 "just checking");
a61af66fc99e Initial load duke parents: diff changeset	478
a61af66fc99e Initial load duke parents: diff changeset	479 // Update map to (3,1) - point to offset of 3 (words) with 1 map entry.
a61af66fc99e Initial load duke parents: diff changeset	480 map->set_offset(java_lang_ref_Reference::queue_offset);
938 b37c246bf7ce 6861660: OopMapBlock count/size confusion jcoomes parents: 845 diff changeset	481 map->set_count(1);
0 a61af66fc99e Initial load duke parents: diff changeset	482 }
a61af66fc99e Initial load duke parents: diff changeset	483 }
a61af66fc99e Initial load duke parents: diff changeset	484
a61af66fc99e Initial load duke parents: diff changeset	485
a61af66fc99e Initial load duke parents: diff changeset	486 // Verification
a61af66fc99e Initial load duke parents: diff changeset	487
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	488 void InstanceRefKlass::oop_verify_on(oop obj, outputStream* st) {
6725 da91efe96a93 6964458: Reimplement class meta-data storage to use native memory coleenp parents: 6108 diff changeset	489 InstanceKlass::oop_verify_on(obj, st);
0 a61af66fc99e Initial load duke parents: diff changeset	490 // Verify referent field
a61af66fc99e Initial load duke parents: diff changeset	491 oop referent = java_lang_ref_Reference::referent(obj);
a61af66fc99e Initial load duke parents: diff changeset	492
a61af66fc99e Initial load duke parents: diff changeset	493 // We should make this general to all heaps
a61af66fc99e Initial load duke parents: diff changeset	494 GenCollectedHeap* gch = NULL;
a61af66fc99e Initial load duke parents: diff changeset	495 if (Universe::heap()->kind() == CollectedHeap::GenCollectedHeap)
a61af66fc99e Initial load duke parents: diff changeset	496 gch = GenCollectedHeap::heap();
a61af66fc99e Initial load duke parents: diff changeset	497
a61af66fc99e Initial load duke parents: diff changeset	498 if (referent != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	499 guarantee(referent->is_oop(), "referent field heap failed");
a61af66fc99e Initial load duke parents: diff changeset	500 }
a61af66fc99e Initial load duke parents: diff changeset	501 // Verify next field
a61af66fc99e Initial load duke parents: diff changeset	502 oop next = java_lang_ref_Reference::next(obj);
a61af66fc99e Initial load duke parents: diff changeset	503 if (next != NULL) {
342 37f87013dfd8 6711316: Open source the Garbage-First garbage collector ysr parents: 113 diff changeset	504 guarantee(next->is_oop(), "next field verify failed");
0 a61af66fc99e Initial load duke parents: diff changeset	505 guarantee(next->is_instanceRef(), "next field verify failed");
a61af66fc99e Initial load duke parents: diff changeset	506 }
a61af66fc99e Initial load duke parents: diff changeset	507 }
a61af66fc99e Initial load duke parents: diff changeset	508
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	509 bool InstanceRefKlass::owns_pending_list_lock(JavaThread* thread) {
2025 b03e6b4c7c75 7006471: fix for 6988439 crashes when pending list lock is null coleenp parents: 2021 diff changeset	510 if (java_lang_ref_Reference::pending_list_lock() == NULL) return false;
2021 7cf1a74771e8 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock coleenp parents: 1972 diff changeset	511 Handle h_lock(thread, java_lang_ref_Reference::pending_list_lock());
7cf1a74771e8 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock coleenp parents: 1972 diff changeset	512 return ObjectSynchronizer::current_thread_holds_lock(thread, h_lock);
7cf1a74771e8 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock coleenp parents: 1972 diff changeset	513 }
7cf1a74771e8 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock coleenp parents: 1972 diff changeset	514
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	515 void InstanceRefKlass::acquire_pending_list_lock(BasicLock *pending_list_basic_lock) {
0 a61af66fc99e Initial load duke parents: diff changeset	516 // we may enter this with pending exception set
a61af66fc99e Initial load duke parents: diff changeset	517 PRESERVE_EXCEPTION_MARK; // exceptions are never thrown, needed for TRAPS argument
6108 c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	518
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	519 // Create a HandleMark in case we retry a GC multiple times.
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	520 // Each time we attempt the GC, we allocate the handle below
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	521 // to hold the pending list lock. We want to free this handle.
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	522 HandleMark hm;
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	523
0 a61af66fc99e Initial load duke parents: diff changeset	524 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
a61af66fc99e Initial load duke parents: diff changeset	525 ObjectSynchronizer::fast_enter(h_lock, pending_list_basic_lock, false, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	526 assert(ObjectSynchronizer::current_thread_holds_lock(
a61af66fc99e Initial load duke parents: diff changeset	527 JavaThread::current(), h_lock),
a61af66fc99e Initial load duke parents: diff changeset	528 "Locking should have succeeded");
a61af66fc99e Initial load duke parents: diff changeset	529 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load duke parents: diff changeset	530 }
a61af66fc99e Initial load duke parents: diff changeset	531
6735 aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass coleenp parents: 6725 diff changeset	532 void InstanceRefKlass::release_and_notify_pending_list_lock(
0 a61af66fc99e Initial load duke parents: diff changeset	533 BasicLock *pending_list_basic_lock) {
a61af66fc99e Initial load duke parents: diff changeset	534 // we may enter this with pending exception set
a61af66fc99e Initial load duke parents: diff changeset	535 PRESERVE_EXCEPTION_MARK; // exceptions are never thrown, needed for TRAPS argument
6108 c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	536
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	537 // Create a HandleMark in case we retry a GC multiple times.
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	538 // Each time we attempt the GC, we allocate the handle below
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	539 // to hold the pending list lock. We want to free this handle.
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	540 HandleMark hm;
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests johnc parents: 6008 diff changeset	541
0 a61af66fc99e Initial load duke parents: diff changeset	542 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
a61af66fc99e Initial load duke parents: diff changeset	543 assert(ObjectSynchronizer::current_thread_holds_lock(
a61af66fc99e Initial load duke parents: diff changeset	544 JavaThread::current(), h_lock),
a61af66fc99e Initial load duke parents: diff changeset	545 "Lock should be held");
a61af66fc99e Initial load duke parents: diff changeset	546 // Notify waiters on pending lists lock if there is any reference.
a61af66fc99e Initial load duke parents: diff changeset	547 if (java_lang_ref_Reference::pending_list() != NULL) {
a61af66fc99e Initial load duke parents: diff changeset	548 ObjectSynchronizer::notifyall(h_lock, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	549 }
a61af66fc99e Initial load duke parents: diff changeset	550 ObjectSynchronizer::fast_exit(h_lock(), pending_list_basic_lock, THREAD);
a61af66fc99e Initial load duke parents: diff changeset	551 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load duke parents: diff changeset	552 }

Mercurial > hg > truffle

annotate src/share/vm/oops/instanceRefKlass.cpp @ 6735:aed758eda82a