Mercurial > hg > graal-compiler
annotate src/share/vm/oops/instanceRefKlass.cpp @ 18027:9f169829d0e1
Merge
author | asaha |
---|---|
date | Tue, 08 Jul 2014 13:25:13 -0700 |
parents | 78bbf4d43a14 |
children | a8ea2f110d87 |
rev | line source |
---|---|
0 | 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 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
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 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "classfile/systemDictionary.hpp" | |
28 #include "gc_implementation/shared/markSweep.inline.hpp" | |
29 #include "gc_interface/collectedHeap.hpp" | |
30 #include "gc_interface/collectedHeap.inline.hpp" | |
31 #include "memory/genCollectedHeap.hpp" | |
32 #include "memory/genOopClosures.inline.hpp" | |
33 #include "oops/instanceRefKlass.hpp" | |
34 #include "oops/oop.inline.hpp" | |
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 | 38 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
39 #include "gc_implementation/g1/g1OopClosures.inline.hpp" | |
40 #include "gc_implementation/g1/g1RemSet.inline.hpp" | |
41 #include "gc_implementation/g1/heapRegionSeq.inline.hpp" | |
42 #include "gc_implementation/parNew/parOopClosures.inline.hpp" | |
43 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" | |
44 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
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 | 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 | 54 debug_only( |
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 | 57 } |
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 | 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 | 73 debug_only( |
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 | 148 } |
149 ) | |
150 return; | |
151 } else { | |
152 // treat referent as normal oop | |
153 debug_only( | |
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 | 156 } |
157 ) | |
158 PSParallelCompact::mark_and_push(cm, referent_addr); | |
159 } | |
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 | 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 | 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 | 199 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
6735
diff
changeset
|
200 #endif // INCLUDE_ALL_GCS |
0 | 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 | 234 |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
235 int InstanceRefKlass::oop_adjust_pointers(oop obj) { |
0 | 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 | 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 | 243 } |
244 return size; | |
245 } | |
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 | 307 #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ |
308 \ | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
309 int InstanceRefKlass:: \ |
0 | 310 oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \ |
311 /* Get size before changing pointers */ \ | |
312 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\ | |
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 | 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 | 320 } \ |
321 } | |
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 | 342 #define InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \ |
343 \ | |
6735
aed758eda82a
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
6725
diff
changeset
|
344 int InstanceRefKlass:: \ |
0 | 345 oop_oop_iterate##nv_suffix##_m(oop obj, \ |
346 OopClosureType* closure, \ | |
347 MemRegion mr) { \ | |
348 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\ | |
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 | 355 } \ |
356 } | |
357 | |
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 | 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 | 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 | 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 | 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 | 377 return; |
378 } else { | |
379 // treat referent as normal oop | |
380 pm->claim_or_forward_depth(referent_addr); | |
381 } | |
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 | 415 pm->claim_or_forward_depth(next_addr); |
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 | 439 } |
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 | 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 | 453 // Clear the nonstatic oop-map entries corresponding to referent |
454 // and nextPending field. They are treated specially by the | |
455 // garbage collector. | |
456 // The discovered field is used only by the garbage collector | |
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 | 459 |
460 // Check that we have the right class | |
461 debug_only(static bool first_time = true); | |
1142 | 462 assert(k == SystemDictionary::Reference_klass() && first_time, |
0 | 463 "Invalid update of maps"); |
464 debug_only(first_time = false); | |
938 | 465 assert(ik->nonstatic_oop_map_count() == 1, "just checking"); |
0 | 466 |
467 OopMapBlock* map = ik->start_of_nonstatic_oop_maps(); | |
468 | |
469 // Check that the current map is (2,4) - currently points at field with | |
470 // offset 2 (words) and has 4 map entries. | |
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 | 474 |
475 if (UseSharedSpaces) { | |
476 assert(map->offset() == java_lang_ref_Reference::queue_offset && | |
938 | 477 map->count() == 1, "just checking"); |
0 | 478 } else { |
938 | 479 assert(map->offset() == offset && map->count() == count, |
0 | 480 "just checking"); |
481 | |
482 // Update map to (3,1) - point to offset of 3 (words) with 1 map entry. | |
483 map->set_offset(java_lang_ref_Reference::queue_offset); | |
938 | 484 map->set_count(1); |
0 | 485 } |
486 } | |
487 | |
488 | |
489 // Verification | |
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 | 493 // Verify referent field |
494 oop referent = java_lang_ref_Reference::referent(obj); | |
495 | |
496 // We should make this general to all heaps | |
497 GenCollectedHeap* gch = NULL; | |
498 if (Universe::heap()->kind() == CollectedHeap::GenCollectedHeap) | |
499 gch = GenCollectedHeap::heap(); | |
500 | |
501 if (referent != NULL) { | |
502 guarantee(referent->is_oop(), "referent field heap failed"); | |
503 } | |
504 // Verify next field | |
505 oop next = java_lang_ref_Reference::next(obj); | |
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 | 508 guarantee(next->is_instanceRef(), "next field verify failed"); |
509 } | |
510 } | |
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 | 519 // we may enter this with pending exception set |
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 | 527 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock()); |
528 ObjectSynchronizer::fast_enter(h_lock, pending_list_basic_lock, false, THREAD); | |
529 assert(ObjectSynchronizer::current_thread_holds_lock( | |
530 JavaThread::current(), h_lock), | |
531 "Locking should have succeeded"); | |
532 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
533 } | |
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 | 536 BasicLock *pending_list_basic_lock) { |
537 // we may enter this with pending exception set | |
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 | 545 Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock()); |
546 assert(ObjectSynchronizer::current_thread_holds_lock( | |
547 JavaThread::current(), h_lock), | |
548 "Lock should be held"); | |
549 // Notify waiters on pending lists lock if there is any reference. | |
550 if (java_lang_ref_Reference::pending_list() != NULL) { | |
551 ObjectSynchronizer::notifyall(h_lock, THREAD); | |
552 } | |
553 ObjectSynchronizer::fast_exit(h_lock(), pending_list_basic_lock, THREAD); | |
554 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; | |
555 } |