Mercurial > hg > truffle

annotate src/share/vm/oops/instanceRefKlass.cpp @ 20470:bc4ce33c0985

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
8049529: LogCompilation: annotate make_not_compilable with compilation level Reviewed-by: roland, iveresov
author vlivanov
date Mon, 14 Jul 2014 03:27:21 -0700
parents a8ea2f110d87
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1 /*
17937
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 12316
diff changeset
2 * Copyright (c) 1997, 2014, 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"
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
36 #include "utilities/macros.hpp"
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
37 #if INCLUDE_ALL_GCS
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1706
diff changeset
38 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1706
diff changeset
39 #include "gc_implementation/g1/g1OopClosures.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1706
diff changeset
40 #include "gc_implementation/g1/g1RemSet.inline.hpp"
20377
a8ea2f110d87 8054819: Rename HeapRegionSeq to HeapRegionManager
tschatzl
parents: 17937
diff changeset
41 #include "gc_implementation/g1/heapRegionManager.inline.hpp"
1972
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1706
diff changeset
42 #include "gc_implementation/parNew/parOopClosures.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1706
diff changeset
43 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1706
diff changeset
44 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
f95d63e2154a 6989984: Use standard include model for Hospot
stefank
parents: 1706
diff changeset
45 #include "oops/oop.pcgc.inline.hpp"
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
46 #endif // INCLUDE_ALL_GCS
0
a61af66fc99e Initial load
duke
parents:
diff changeset
47
17937
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 12316
diff changeset
48 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
78bbf4d43a14 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 12316
diff changeset
49
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
50 template <class T>
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
51 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
52 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
53 T heap_oop = oopDesc::load_heap_oop(referent_addr);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
54 debug_only(
a61af66fc99e Initial load
duke
parents:
diff changeset
55 if(TraceReferenceGC && PrintGCDetails) {
12316
190899198332 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 8001
diff changeset
56 gclog_or_tty->print_cr("InstanceRefKlass::oop_follow_contents " INTPTR_FORMAT, (void *)obj);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
57 }
a61af66fc99e Initial load
duke
parents:
diff changeset
58 )
845
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents: 356
diff changeset
59 if (!oopDesc::is_null(heap_oop)) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents: 356
diff changeset
60 oop referent = oopDesc::decode_heap_oop_not_null(heap_oop);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
61 if (!referent->is_gc_marked() &&
3917
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
62 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
63 // 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
64 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
65 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
66 if(TraceReferenceGC && PrintGCDetails) {
12316
190899198332 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 8001
diff changeset
67 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, (void *)obj);
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
68 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
69 )
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
70 return;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
71 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
72 // treat referent as normal oop
0
a61af66fc99e Initial load
duke
parents:
diff changeset
73 debug_only(
a61af66fc99e Initial load
duke
parents:
diff changeset
74 if(TraceReferenceGC && PrintGCDetails) {
12316
190899198332 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 8001
diff changeset
75 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, (void *)obj);
113
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 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
79 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
80 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
81 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
82 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
83 // 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
84 // 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
85 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
86 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
87 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
88 debug_only(
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
89 if(TraceReferenceGC && PrintGCDetails) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
90 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
91 INTPTR_FORMAT, 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 )
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
94 MarkSweep::mark_and_push(discovered_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
95 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
96 } else {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
97 #ifdef ASSERT
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
98 // 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
99 // 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
100 // 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
101 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
102 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
103 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
104 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
105 (oopDesc*)obj));
3917
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
106 #endif
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
107 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
108 // 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
109 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
110 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
111 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
112 }
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 MarkSweep::mark_and_push(next_addr);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6108
diff changeset
115 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
116 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
117
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
118 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
119 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
120 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
121 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
122 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
123 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
124 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
125
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
126 #if INCLUDE_ALL_GCS
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
127 template <class T>
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
128 void specialized_oop_follow_contents(InstanceRefKlass* ref,
1123
167c2986d91b 6843629: Make current hotspot build part of jdk5 control build
phh
parents: 948
diff changeset
129 ParCompactionManager* cm,
167c2986d91b 6843629: Make current hotspot build part of jdk5 control build
phh
parents: 948
diff changeset
130 oop obj) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
131 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
132 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
133 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
134 if(TraceReferenceGC && PrintGCDetails) {
12316
190899198332 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 8001
diff changeset
135 gclog_or_tty->print_cr("InstanceRefKlass::oop_follow_contents " INTPTR_FORMAT, (void *)obj);
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
136 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
137 )
845
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents: 356
diff changeset
138 if (!oopDesc::is_null(heap_oop)) {
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents: 356
diff changeset
139 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
140 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
141 PSParallelCompact::ref_processor()->
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
142 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
143 // 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
144 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
145 debug_only(
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
146 if(TraceReferenceGC && PrintGCDetails) {
12316
190899198332 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 8001
diff changeset
147 gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, (void *)obj);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
148 }
a61af66fc99e Initial load
duke
parents:
diff changeset
149 )
a61af66fc99e Initial load
duke
parents:
diff changeset
150 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
151 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
152 // treat referent as normal oop
a61af66fc99e Initial load
duke
parents:
diff changeset
153 debug_only(
a61af66fc99e Initial load
duke
parents:
diff changeset
154 if(TraceReferenceGC && PrintGCDetails) {
12316
190899198332 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 8001
diff changeset
155 gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, (void *)obj);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
156 }
a61af66fc99e Initial load
duke
parents:
diff changeset
157 )
a61af66fc99e Initial load
duke
parents:
diff changeset
158 PSParallelCompact::mark_and_push(cm, referent_addr);
a61af66fc99e Initial load
duke
parents:
diff changeset
159 }
a61af66fc99e Initial load
duke
parents:
diff changeset
160 }
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
161 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
162 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
163 // 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
164 // 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
165 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
166 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
167 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
168 debug_only(
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
169 if(TraceReferenceGC && PrintGCDetails) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
170 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
171 INTPTR_FORMAT, discovered_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
172 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
173 )
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
174 PSParallelCompact::mark_and_push(cm, discovered_addr);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
175 }
3917
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
176 } else {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
177 #ifdef ASSERT
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
178 // 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
179 // 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
180 // 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
181 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
182 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
183 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
184 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
185 (oopDesc*)obj));
3917
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
186 #endif
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
187 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
188 PSParallelCompact::mark_and_push(cm, next_addr);
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6108
diff changeset
189 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
190 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
191
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
192 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
193 oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
194 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
195 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
196 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
197 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
198 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
199 }
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
200 #endif // INCLUDE_ALL_GCS
0
a61af66fc99e Initial load
duke
parents:
diff changeset
201
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
202 #ifdef ASSERT
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
203 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
204 T* referent_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
205 T* next_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
206 T* discovered_addr) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
207 if(TraceReferenceGC && PrintGCDetails) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
208 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
209 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
210 INTPTR_FORMAT, referent_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
211 referent_addr ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
212 (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
213 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
214 INTPTR_FORMAT, next_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
215 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
216 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
217 INTPTR_FORMAT, discovered_addr,
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
218 discovered_addr ?
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
219 (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
220 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
221 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
222 #endif
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
223
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
224 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
225 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
226 MarkSweep::adjust_pointer(referent_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
227 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
228 MarkSweep::adjust_pointer(next_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
229 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
230 MarkSweep::adjust_pointer(discovered_addr);
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
231 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
232 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
233 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
234
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
235 int InstanceRefKlass::oop_adjust_pointers(oop obj) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
236 int size = size_helper();
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6108
diff changeset
237 InstanceKlass::oop_adjust_pointers(obj);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
238
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
239 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
240 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
241 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
242 specialized_oop_adjust_pointers<oop>(this, obj);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
243 }
a61af66fc99e Initial load
duke
parents:
diff changeset
244 return size;
a61af66fc99e Initial load
duke
parents:
diff changeset
245 }
a61af66fc99e Initial load
duke
parents:
diff changeset
246
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
247 #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
248 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
249 if (closure->apply_to_weak_ref_discovered_field()) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
250 closure->do_oop##nv_suffix(disc_addr); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
251 } \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
252 \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
253 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
254 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
255 ReferenceProcessor* rp = closure->_ref_processor; \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
256 if (!oopDesc::is_null(heap_oop)) { \
845
df6caf649ff7 6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents: 356
diff changeset
257 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
258 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
259 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
260 return size; \
3917
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
261 } 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
262 /* treat referent as normal oop */ \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
263 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
264 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
265 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
266 } \
3917
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
267 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
268 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
269 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
270 /* 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
271 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
272 /* i.e. ref is not "active" */ \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
273 debug_only( \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
274 if(TraceReferenceGC && PrintGCDetails) { \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
275 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
276 INTPTR_FORMAT, disc_addr); \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
277 } \
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 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
280 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
281 } \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
282 } else { \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
283 /* 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
284 /* 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
285 /* NULL discovered field. */ \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
286 debug_only( \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
287 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
288 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
289 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
290 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
291 "discovered field", (oopDesc*)obj)); \
3917
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
292 ) \
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
293 } \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
294 /* treat next as normal oop */ \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
295 if (contains(next_addr)) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
296 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
297 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
298 } \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
299 return size; \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
300
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
301
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
302 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
303
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
304 // 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
305 // 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
306
0
a61af66fc99e Initial load
duke
parents:
diff changeset
307 #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \
a61af66fc99e Initial load
duke
parents:
diff changeset
308 \
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
309 int InstanceRefKlass:: \
0
a61af66fc99e Initial load
duke
parents:
diff changeset
310 oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \
a61af66fc99e Initial load
duke
parents:
diff changeset
311 /* Get size before changing pointers */ \
a61af66fc99e Initial load
duke
parents:
diff changeset
312 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
a61af66fc99e Initial load
duke
parents:
diff changeset
313 \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6108
diff changeset
314 int size = InstanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \
0
a61af66fc99e Initial load
duke
parents:
diff changeset
315 \
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
316 if (UseCompressedOops) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
317 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
318 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
319 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \
0
a61af66fc99e Initial load
duke
parents:
diff changeset
320 } \
a61af66fc99e Initial load
duke
parents:
diff changeset
321 }
a61af66fc99e Initial load
duke
parents:
diff changeset
322
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
323 #if INCLUDE_ALL_GCS
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
324 #define InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
325 \
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
326 int InstanceRefKlass:: \
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
327 oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
328 /* Get size before changing pointers */ \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
329 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
330 \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6108
diff changeset
331 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
332 \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
333 if (UseCompressedOops) { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
334 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, contains); \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
335 } else { \
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
336 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \
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 }
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
339 #endif // INCLUDE_ALL_GCS
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
340
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
341
0
a61af66fc99e Initial load
duke
parents:
diff changeset
342 #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \
a61af66fc99e Initial load
duke
parents:
diff changeset
343 \
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
344 int InstanceRefKlass:: \
0
a61af66fc99e Initial load
duke
parents:
diff changeset
345 oop_oop_iterate##nv_suffix##_m(oop obj, \
a61af66fc99e Initial load
duke
parents:
diff changeset
346 OopClosureType* closure, \
a61af66fc99e Initial load
duke
parents:
diff changeset
347 MemRegion mr) { \
a61af66fc99e Initial load
duke
parents:
diff changeset
348 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\
a61af66fc99e Initial load
duke
parents:
diff changeset
349 \
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6108
diff changeset
350 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
351 if (UseCompressedOops) { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
352 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
353 } else { \
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
354 InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, mr.contains); \
0
a61af66fc99e Initial load
duke
parents:
diff changeset
355 } \
a61af66fc99e Initial load
duke
parents:
diff changeset
356 }
a61af66fc99e Initial load
duke
parents:
diff changeset
357
a61af66fc99e Initial load
duke
parents:
diff changeset
358 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
359 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_DEFN)
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
360 #if INCLUDE_ALL_GCS
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
361 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
362 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
363 #endif // INCLUDE_ALL_GCS
0
a61af66fc99e Initial load
duke
parents:
diff changeset
364 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
365 ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
366
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
367 #if INCLUDE_ALL_GCS
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
368 template <class T>
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
369 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
370 PSPromotionManager* pm, oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
371 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
372 if (PSScavenge::should_scavenge(referent_addr)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
373 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
374 if (rp->discover_reference(obj, ref->reference_type())) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
375 // 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
376 ref->InstanceKlass::oop_push_contents(pm, obj);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
377 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
378 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
379 // treat referent as normal oop
a61af66fc99e Initial load
duke
parents:
diff changeset
380 pm->claim_or_forward_depth(referent_addr);
a61af66fc99e Initial load
duke
parents:
diff changeset
381 }
a61af66fc99e Initial load
duke
parents:
diff changeset
382 }
3917
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
383 // 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
384 // 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
385 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
386 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
387 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
388 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
389 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
390 debug_only(
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
391 if(TraceReferenceGC && PrintGCDetails) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
392 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
393 INTPTR_FORMAT, discovered_addr);
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
394 }
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 if (PSScavenge::should_scavenge(discovered_addr)) {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
397 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
398 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
399 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
400 } else {
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
401 #ifdef ASSERT
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
402 // 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
403 // 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
404 // 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
405 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
406 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
407 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
408 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
409 (oopDesc*)obj));
3917
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
410 #endif
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
411 }
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
412
eca1193ca245 4965777: GC changes to support use of discovered field for pending references
ysr
parents: 3377
diff changeset
413 // 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
414 if (PSScavenge::should_scavenge(next_addr)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
415 pm->claim_or_forward_depth(next_addr);
a61af66fc99e Initial load
duke
parents:
diff changeset
416 }
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6108
diff changeset
417 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
418 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
419
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
420 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
421 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
422 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
423 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
424 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
425 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
426 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
427
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
428 template <class T>
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
429 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
430 ParCompactionManager* cm, oop obj) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
431 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
432 PSParallelCompact::adjust_pointer(referent_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
433 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
434 PSParallelCompact::adjust_pointer(next_addr);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
435 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
436 PSParallelCompact::adjust_pointer(discovered_addr);
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
437 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
438 referent_addr, next_addr, discovered_addr);)
0
a61af66fc99e Initial load
duke
parents:
diff changeset
439 }
a61af66fc99e Initial load
duke
parents:
diff changeset
440
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
441 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
442 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
443 if (UseCompressedOops) {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
444 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
445 } else {
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
446 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
447 }
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
448 return size_helper();
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 0
diff changeset
449 }
8001
db9981fd3124 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 6735
diff changeset
450 #endif // INCLUDE_ALL_GCS
0
a61af66fc99e Initial load
duke
parents:
diff changeset
451
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
452 void InstanceRefKlass::update_nonstatic_oop_maps(Klass* k) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
453 // Clear the nonstatic oop-map entries corresponding to referent
a61af66fc99e Initial load
duke
parents:
diff changeset
454 // and nextPending field. They are treated specially by the
a61af66fc99e Initial load
duke
parents:
diff changeset
455 // garbage collector.
a61af66fc99e Initial load
duke
parents:
diff changeset
456 // The discovered field is used only by the garbage collector
a61af66fc99e Initial load
duke
parents:
diff changeset
457 // and is also treated specially.
6725
da91efe96a93 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 6108
diff changeset
458 InstanceKlass* ik = InstanceKlass::cast(k);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
459
a61af66fc99e Initial load
duke
parents:
diff changeset
460 // Check that we have the right class
a61af66fc99e Initial load
duke
parents:
diff changeset
461 debug_only(static bool first_time = true);
1142
4ce7240d622c 6914300: ciEnv should export all well known classes
never
parents: 948
diff changeset
462 assert(k == SystemDictionary::Reference_klass() && first_time,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
463 "Invalid update of maps");
a61af66fc99e Initial load
duke
parents:
diff changeset
464 debug_only(first_time = false);
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 845
diff changeset
465 assert(ik->nonstatic_oop_map_count() == 1, "just checking");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
466
a61af66fc99e Initial load
duke
parents:
diff changeset
467 OopMapBlock* map = ik->start_of_nonstatic_oop_maps();
a61af66fc99e Initial load
duke
parents:
diff changeset
468
a61af66fc99e Initial load
duke
parents:
diff changeset
469 // Check that the current map is (2,4) - currently points at field with
a61af66fc99e Initial load
duke
parents:
diff changeset
470 // offset 2 (words) and has 4 map entries.
a61af66fc99e Initial load
duke
parents:
diff changeset
471 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
472 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
473 java_lang_ref_Reference::referent_offset)/heapOopSize) + 1);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
474
a61af66fc99e Initial load
duke
parents:
diff changeset
475 if (UseSharedSpaces) {
a61af66fc99e Initial load
duke
parents:
diff changeset
476 assert(map->offset() == java_lang_ref_Reference::queue_offset &&
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 845
diff changeset
477 map->count() == 1, "just checking");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
478 } else {
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 845
diff changeset
479 assert(map->offset() == offset && map->count() == count,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
480 "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
481
a61af66fc99e Initial load
duke
parents:
diff changeset
482 // Update map to (3,1) - point to offset of 3 (words) with 1 map entry.
a61af66fc99e Initial load
duke
parents:
diff changeset
483 map->set_offset(java_lang_ref_Reference::queue_offset);
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 845
diff changeset
484 map->set_count(1);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
485 }
a61af66fc99e Initial load
duke
parents:
diff changeset
486 }
a61af66fc99e Initial load
duke
parents:
diff changeset
487
a61af66fc99e Initial load
duke
parents:
diff changeset
488
a61af66fc99e Initial load
duke
parents:
diff changeset
489 // Verification
a61af66fc99e Initial load
duke
parents:
diff changeset
490
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
491 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
492 InstanceKlass::oop_verify_on(obj, st);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
493 // Verify referent field
a61af66fc99e Initial load
duke
parents:
diff changeset
494 oop referent = java_lang_ref_Reference::referent(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
495
a61af66fc99e Initial load
duke
parents:
diff changeset
496 // We should make this general to all heaps
a61af66fc99e Initial load
duke
parents:
diff changeset
497 GenCollectedHeap* gch = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
498 if (Universe::heap()->kind() == CollectedHeap::GenCollectedHeap)
a61af66fc99e Initial load
duke
parents:
diff changeset
499 gch = GenCollectedHeap::heap();
a61af66fc99e Initial load
duke
parents:
diff changeset
500
a61af66fc99e Initial load
duke
parents:
diff changeset
501 if (referent != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
502 guarantee(referent->is_oop(), "referent field heap failed");
a61af66fc99e Initial load
duke
parents:
diff changeset
503 }
a61af66fc99e Initial load
duke
parents:
diff changeset
504 // Verify next field
a61af66fc99e Initial load
duke
parents:
diff changeset
505 oop next = java_lang_ref_Reference::next(obj);
a61af66fc99e Initial load
duke
parents:
diff changeset
506 if (next != NULL) {
342
37f87013dfd8 6711316: Open source the Garbage-First garbage collector
ysr
parents: 113
diff changeset
507 guarantee(next->is_oop(), "next field verify failed");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
508 guarantee(next->is_instanceRef(), "next field verify failed");
a61af66fc99e Initial load
duke
parents:
diff changeset
509 }
a61af66fc99e Initial load
duke
parents:
diff changeset
510 }
a61af66fc99e Initial load
duke
parents:
diff changeset
511
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
512 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
513 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
514 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
515 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
516 }
7cf1a74771e8 6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents: 1972
diff changeset
517
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
518 void InstanceRefKlass::acquire_pending_list_lock(BasicLock *pending_list_basic_lock) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
519 // we may enter this with pending exception set
a61af66fc99e Initial load
duke
parents:
diff changeset
520 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
521
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents: 6008
diff changeset
522 // 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
523 // 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
524 // 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
525 HandleMark hm;
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents: 6008
diff changeset
526
0
a61af66fc99e Initial load
duke
parents:
diff changeset
527 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
a61af66fc99e Initial load
duke
parents:
diff changeset
528 ObjectSynchronizer::fast_enter(h_lock, pending_list_basic_lock, false, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
529 assert(ObjectSynchronizer::current_thread_holds_lock(
a61af66fc99e Initial load
duke
parents:
diff changeset
530 JavaThread::current(), h_lock),
a61af66fc99e Initial load
duke
parents:
diff changeset
531 "Locking should have succeeded");
a61af66fc99e Initial load
duke
parents:
diff changeset
532 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load
duke
parents:
diff changeset
533 }
a61af66fc99e Initial load
duke
parents:
diff changeset
534
6735
aed758eda82a 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 6725
diff changeset
535 void InstanceRefKlass::release_and_notify_pending_list_lock(
0
a61af66fc99e Initial load
duke
parents:
diff changeset
536 BasicLock *pending_list_basic_lock) {
a61af66fc99e Initial load
duke
parents:
diff changeset
537 // we may enter this with pending exception set
a61af66fc99e Initial load
duke
parents:
diff changeset
538 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
539
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents: 6008
diff changeset
540 // 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
541 // 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
542 // 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
543 HandleMark hm;
c52a6a39546c 7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents: 6008
diff changeset
544
0
a61af66fc99e Initial load
duke
parents:
diff changeset
545 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock());
a61af66fc99e Initial load
duke
parents:
diff changeset
546 assert(ObjectSynchronizer::current_thread_holds_lock(
a61af66fc99e Initial load
duke
parents:
diff changeset
547 JavaThread::current(), h_lock),
a61af66fc99e Initial load
duke
parents:
diff changeset
548 "Lock should be held");
a61af66fc99e Initial load
duke
parents:
diff changeset
549 // Notify waiters on pending lists lock if there is any reference.
a61af66fc99e Initial load
duke
parents:
diff changeset
550 if (java_lang_ref_Reference::pending_list() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
551 ObjectSynchronizer::notifyall(h_lock, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
552 }
a61af66fc99e Initial load
duke
parents:
diff changeset
553 ObjectSynchronizer::fast_exit(h_lock(), pending_list_basic_lock, THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
554 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load
duke
parents:
diff changeset
555 }