author | simonis |
Wed, 27 Feb 2013 09:40:30 +0100 | |
changeset 15855 | 2ac9ebea17f3 |
parent 15482 | 470d0b0c09f1 |
child 20282 | 7f9cbdf89af2 |
permissions | -rw-r--r-- |
1 | 1 |
/* |
12379 | 2 |
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
1 | 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 |
* |
|
5547
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
4573
diff
changeset
|
19 |
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
4573
diff
changeset
|
20 |
* or visit www.oracle.com if you need additional information or have any |
f4b087cbb361
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
4573
diff
changeset
|
21 |
* questions. |
1 | 22 |
* |
23 |
*/ |
|
24 |
||
7397 | 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" |
|
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
36 |
#include "utilities/macros.hpp" |
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
37 |
#if INCLUDE_ALL_GCS |
7397 | 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" |
|
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
46 |
#endif // INCLUDE_ALL_GCS |
1 | 47 |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
48 |
template <class T> |
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
49 |
void specialized_oop_follow_contents(InstanceRefKlass* ref, oop obj) { |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
50 |
T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); |
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
1388
diff
changeset
|
51 |
T heap_oop = oopDesc::load_heap_oop(referent_addr); |
1 | 52 |
debug_only( |
53 |
if(TraceReferenceGC && PrintGCDetails) { |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
54 |
gclog_or_tty->print_cr("InstanceRefKlass::oop_follow_contents " INTPTR_FORMAT, obj); |
1 | 55 |
} |
56 |
) |
|
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
1388
diff
changeset
|
57 |
if (!oopDesc::is_null(heap_oop)) { |
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
1388
diff
changeset
|
58 |
oop referent = oopDesc::decode_heap_oop_not_null(heap_oop); |
1 | 59 |
if (!referent->is_gc_marked() && |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
60 |
MarkSweep::ref_processor()->discover_reference(obj, ref->reference_type())) { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
61 |
// reference was discovered, referent will be traversed later |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
62 |
ref->InstanceKlass::oop_follow_contents(obj); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
63 |
debug_only( |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
64 |
if(TraceReferenceGC && PrintGCDetails) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
65 |
gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
66 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
67 |
) |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
68 |
return; |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
69 |
} else { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
70 |
// treat referent as normal oop |
1 | 71 |
debug_only( |
72 |
if(TraceReferenceGC && PrintGCDetails) { |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
73 |
gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
74 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
75 |
) |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
76 |
MarkSweep::mark_and_push(referent_addr); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
77 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
78 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
79 |
T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
80 |
if (ReferenceProcessor::pending_list_uses_discovered_field()) { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
81 |
// Treat discovered as normal oop, if ref is not "active", |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
82 |
// i.e. if next is non-NULL. |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
83 |
T next_oop = oopDesc::load_heap_oop(next_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
84 |
if (!oopDesc::is_null(next_oop)) { // i.e. ref is not "active" |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
85 |
T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
86 |
debug_only( |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
87 |
if(TraceReferenceGC && PrintGCDetails) { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
88 |
gclog_or_tty->print_cr(" Process discovered as normal " |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
89 |
INTPTR_FORMAT, discovered_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
90 |
} |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
91 |
) |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
92 |
MarkSweep::mark_and_push(discovered_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
93 |
} |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
94 |
} else { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
95 |
#ifdef ASSERT |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
96 |
// In the case of older JDKs which do not use the discovered |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
97 |
// field for the pending list, an inactive ref (next != NULL) |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
98 |
// must always have a NULL discovered field. |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
99 |
oop next = oopDesc::load_decode_heap_oop(next_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
100 |
oop discovered = java_lang_ref_Reference::discovered(obj); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
101 |
assert(oopDesc::is_null(next) || oopDesc::is_null(discovered), |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
102 |
err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL discovered field", |
10537
23539f11e110
7090259: Fix hotspot sources to build with old compilers
kvn
parents:
10526
diff
changeset
|
103 |
(oopDesc*)obj)); |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
104 |
#endif |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
105 |
} |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
106 |
// treat next as normal oop. next is a link in the reference queue. |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
107 |
debug_only( |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
108 |
if(TraceReferenceGC && PrintGCDetails) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
109 |
gclog_or_tty->print_cr(" Process next as normal " INTPTR_FORMAT, next_addr); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
110 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
111 |
) |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
112 |
MarkSweep::mark_and_push(next_addr); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
113 |
ref->InstanceKlass::oop_follow_contents(obj); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
114 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
115 |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
116 |
void InstanceRefKlass::oop_follow_contents(oop obj) { |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
117 |
if (UseCompressedOops) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
118 |
specialized_oop_follow_contents<narrowOop>(this, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
119 |
} else { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
120 |
specialized_oop_follow_contents<oop>(this, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
121 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
122 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
123 |
|
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
124 |
#if INCLUDE_ALL_GCS |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
125 |
template <class T> |
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
126 |
void specialized_oop_follow_contents(InstanceRefKlass* ref, |
4493
9204129f065e
6843629: Make current hotspot build part of jdk5 control build
phh
parents:
3795
diff
changeset
|
127 |
ParCompactionManager* cm, |
9204129f065e
6843629: Make current hotspot build part of jdk5 control build
phh
parents:
3795
diff
changeset
|
128 |
oop obj) { |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
129 |
T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); |
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
1388
diff
changeset
|
130 |
T heap_oop = oopDesc::load_heap_oop(referent_addr); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
131 |
debug_only( |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
132 |
if(TraceReferenceGC && PrintGCDetails) { |
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
133 |
gclog_or_tty->print_cr("InstanceRefKlass::oop_follow_contents " INTPTR_FORMAT, obj); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
134 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
135 |
) |
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
1388
diff
changeset
|
136 |
if (!oopDesc::is_null(heap_oop)) { |
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
1388
diff
changeset
|
137 |
oop referent = oopDesc::decode_heap_oop_not_null(heap_oop); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
138 |
if (PSParallelCompact::mark_bitmap()->is_unmarked(referent) && |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
139 |
PSParallelCompact::ref_processor()-> |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
140 |
discover_reference(obj, ref->reference_type())) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
141 |
// reference already enqueued, referent will be traversed later |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
142 |
ref->InstanceKlass::oop_follow_contents(cm, obj); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
143 |
debug_only( |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
144 |
if(TraceReferenceGC && PrintGCDetails) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
145 |
gclog_or_tty->print_cr(" Non NULL enqueued " INTPTR_FORMAT, obj); |
1 | 146 |
} |
147 |
) |
|
148 |
return; |
|
149 |
} else { |
|
150 |
// treat referent as normal oop |
|
151 |
debug_only( |
|
152 |
if(TraceReferenceGC && PrintGCDetails) { |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
153 |
gclog_or_tty->print_cr(" Non NULL normal " INTPTR_FORMAT, obj); |
1 | 154 |
} |
155 |
) |
|
156 |
PSParallelCompact::mark_and_push(cm, referent_addr); |
|
157 |
} |
|
158 |
} |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
159 |
T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
160 |
if (ReferenceProcessor::pending_list_uses_discovered_field()) { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
161 |
// Treat discovered as normal oop, if ref is not "active", |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
162 |
// i.e. if next is non-NULL. |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
163 |
T next_oop = oopDesc::load_heap_oop(next_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
164 |
if (!oopDesc::is_null(next_oop)) { // i.e. ref is not "active" |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
165 |
T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
166 |
debug_only( |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
167 |
if(TraceReferenceGC && PrintGCDetails) { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
168 |
gclog_or_tty->print_cr(" Process discovered as normal " |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
169 |
INTPTR_FORMAT, discovered_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
170 |
} |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
171 |
) |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
172 |
PSParallelCompact::mark_and_push(cm, discovered_addr); |
1 | 173 |
} |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
174 |
} else { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
175 |
#ifdef ASSERT |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
176 |
// In the case of older JDKs which do not use the discovered |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
177 |
// field for the pending list, an inactive ref (next != NULL) |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
178 |
// must always have a NULL discovered field. |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
179 |
T next = oopDesc::load_heap_oop(next_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
180 |
oop discovered = java_lang_ref_Reference::discovered(obj); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
181 |
assert(oopDesc::is_null(next) || oopDesc::is_null(discovered), |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
182 |
err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL discovered field", |
10537
23539f11e110
7090259: Fix hotspot sources to build with old compilers
kvn
parents:
10526
diff
changeset
|
183 |
(oopDesc*)obj)); |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
184 |
#endif |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
185 |
} |
1 | 186 |
PSParallelCompact::mark_and_push(cm, next_addr); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
187 |
ref->InstanceKlass::oop_follow_contents(cm, obj); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
188 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
189 |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
190 |
void InstanceRefKlass::oop_follow_contents(ParCompactionManager* cm, |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
191 |
oop obj) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
192 |
if (UseCompressedOops) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
193 |
specialized_oop_follow_contents<narrowOop>(this, cm, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
194 |
} else { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
195 |
specialized_oop_follow_contents<oop>(this, cm, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
196 |
} |
1 | 197 |
} |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
198 |
#endif // INCLUDE_ALL_GCS |
1 | 199 |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
200 |
#ifdef ASSERT |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
201 |
template <class T> void trace_reference_gc(const char *s, oop obj, |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
202 |
T* referent_addr, |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
203 |
T* next_addr, |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
204 |
T* discovered_addr) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
205 |
if(TraceReferenceGC && PrintGCDetails) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
206 |
gclog_or_tty->print_cr("%s obj " INTPTR_FORMAT, s, (address)obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
207 |
gclog_or_tty->print_cr(" referent_addr/* " INTPTR_FORMAT " / " |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
208 |
INTPTR_FORMAT, referent_addr, |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
209 |
referent_addr ? |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
210 |
(address)oopDesc::load_decode_heap_oop(referent_addr) : NULL); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
211 |
gclog_or_tty->print_cr(" next_addr/* " INTPTR_FORMAT " / " |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
212 |
INTPTR_FORMAT, next_addr, |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
213 |
next_addr ? (address)oopDesc::load_decode_heap_oop(next_addr) : NULL); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
214 |
gclog_or_tty->print_cr(" discovered_addr/* " INTPTR_FORMAT " / " |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
215 |
INTPTR_FORMAT, discovered_addr, |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
216 |
discovered_addr ? |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
217 |
(address)oopDesc::load_decode_heap_oop(discovered_addr) : NULL); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
218 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
219 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
220 |
#endif |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
221 |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
222 |
template <class T> void specialized_oop_adjust_pointers(InstanceRefKlass *ref, oop obj) { |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
223 |
T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
224 |
MarkSweep::adjust_pointer(referent_addr); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
225 |
T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
226 |
MarkSweep::adjust_pointer(next_addr); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
227 |
T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
228 |
MarkSweep::adjust_pointer(discovered_addr); |
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
229 |
debug_only(trace_reference_gc("InstanceRefKlass::oop_adjust_pointers", obj, |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
230 |
referent_addr, next_addr, discovered_addr);) |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
231 |
} |
1 | 232 |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
233 |
int InstanceRefKlass::oop_adjust_pointers(oop obj) { |
1 | 234 |
int size = size_helper(); |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
235 |
InstanceKlass::oop_adjust_pointers(obj); |
1 | 236 |
|
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
237 |
if (UseCompressedOops) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
238 |
specialized_oop_adjust_pointers<narrowOop>(this, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
239 |
} else { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
240 |
specialized_oop_adjust_pointers<oop>(this, obj); |
1 | 241 |
} |
242 |
return size; |
|
243 |
} |
|
244 |
||
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
245 |
#define InstanceRefKlass_SPECIALIZED_OOP_ITERATE(T, nv_suffix, contains) \ |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
246 |
T* disc_addr = (T*)java_lang_ref_Reference::discovered_addr(obj); \ |
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
247 |
if (closure->apply_to_weak_ref_discovered_field()) { \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
248 |
closure->do_oop##nv_suffix(disc_addr); \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
249 |
} \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
250 |
\ |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
251 |
T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); \ |
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
1388
diff
changeset
|
252 |
T heap_oop = oopDesc::load_heap_oop(referent_addr); \ |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
253 |
ReferenceProcessor* rp = closure->_ref_processor; \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
254 |
if (!oopDesc::is_null(heap_oop)) { \ |
3262
30d1c247fc25
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
1388
diff
changeset
|
255 |
oop referent = oopDesc::decode_heap_oop_not_null(heap_oop); \ |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
256 |
if (!referent->is_gc_marked() && (rp != NULL) && \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
257 |
rp->discover_reference(obj, reference_type())) { \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
258 |
return size; \ |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
259 |
} else if (contains(referent_addr)) { \ |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
260 |
/* treat referent as normal oop */ \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
261 |
SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk);\ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
262 |
closure->do_oop##nv_suffix(referent_addr); \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
263 |
} \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
264 |
} \ |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
265 |
T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
266 |
if (ReferenceProcessor::pending_list_uses_discovered_field()) { \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
267 |
T next_oop = oopDesc::load_heap_oop(next_addr); \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
268 |
/* Treat discovered as normal oop, if ref is not "active" (next non-NULL) */\ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
269 |
if (!oopDesc::is_null(next_oop) && contains(disc_addr)) { \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
270 |
/* i.e. ref is not "active" */ \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
271 |
debug_only( \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
272 |
if(TraceReferenceGC && PrintGCDetails) { \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
273 |
gclog_or_tty->print_cr(" Process discovered as normal " \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
274 |
INTPTR_FORMAT, disc_addr); \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
275 |
} \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
276 |
) \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
277 |
SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk);\ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
278 |
closure->do_oop##nv_suffix(disc_addr); \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
279 |
} \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
280 |
} else { \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
281 |
/* In the case of older JDKs which do not use the discovered field for */ \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
282 |
/* the pending list, an inactive ref (next != NULL) must always have a */ \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
283 |
/* NULL discovered field. */ \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
284 |
debug_only( \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
285 |
T next_oop = oopDesc::load_heap_oop(next_addr); \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
286 |
T disc_oop = oopDesc::load_heap_oop(disc_addr); \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
287 |
assert(oopDesc::is_null(next_oop) || oopDesc::is_null(disc_oop), \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
288 |
err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL" \ |
10537
23539f11e110
7090259: Fix hotspot sources to build with old compilers
kvn
parents:
10526
diff
changeset
|
289 |
"discovered field", (oopDesc*)obj)); \ |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
290 |
) \ |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
291 |
} \ |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
292 |
/* treat next as normal oop */ \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
293 |
if (contains(next_addr)) { \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
294 |
SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::irk); \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
295 |
closure->do_oop##nv_suffix(next_addr); \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
296 |
} \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
297 |
return size; \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
298 |
|
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
299 |
|
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
300 |
template <class T> bool contains(T *t) { return true; } |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
301 |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
302 |
// Macro to define InstanceRefKlass::oop_oop_iterate for virtual/nonvirtual for |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
303 |
// all closures. Macros calling macros above for each oop size. |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
304 |
|
1 | 305 |
#define InstanceRefKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ |
306 |
\ |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
307 |
int InstanceRefKlass:: \ |
1 | 308 |
oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \ |
309 |
/* Get size before changing pointers */ \ |
|
310 |
SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\ |
|
311 |
\ |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
312 |
int size = InstanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \ |
1 | 313 |
\ |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
314 |
if (UseCompressedOops) { \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
315 |
InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, contains); \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
316 |
} else { \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
317 |
InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \ |
1 | 318 |
} \ |
319 |
} |
|
320 |
||
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
321 |
#if INCLUDE_ALL_GCS |
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
322 |
#define InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
323 |
\ |
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
324 |
int InstanceRefKlass:: \ |
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
325 |
oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) { \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
326 |
/* Get size before changing pointers */ \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
327 |
SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
328 |
\ |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
329 |
int size = InstanceKlass::oop_oop_iterate_backwards##nv_suffix(obj, closure); \ |
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
330 |
\ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
331 |
if (UseCompressedOops) { \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
332 |
InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, contains); \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
333 |
} else { \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
334 |
InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, contains); \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
335 |
} \ |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
336 |
} |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
337 |
#endif // INCLUDE_ALL_GCS |
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
338 |
|
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
339 |
|
1 | 340 |
#define InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \ |
341 |
\ |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
342 |
int InstanceRefKlass:: \ |
1 | 343 |
oop_oop_iterate##nv_suffix##_m(oop obj, \ |
344 |
OopClosureType* closure, \ |
|
345 |
MemRegion mr) { \ |
|
346 |
SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk);\ |
|
347 |
\ |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
348 |
int size = InstanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr); \ |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
349 |
if (UseCompressedOops) { \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
350 |
InstanceRefKlass_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, mr.contains); \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
351 |
} else { \ |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
352 |
InstanceRefKlass_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, mr.contains); \ |
1 | 353 |
} \ |
354 |
} |
|
355 |
||
356 |
ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN) |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
357 |
ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_DEFN) |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
358 |
#if INCLUDE_ALL_GCS |
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
359 |
ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN) |
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
360 |
ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN) |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
361 |
#endif // INCLUDE_ALL_GCS |
1 | 362 |
ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m) |
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
363 |
ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceRefKlass_OOP_OOP_ITERATE_DEFN_m) |
1 | 364 |
|
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
365 |
#if INCLUDE_ALL_GCS |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
366 |
template <class T> |
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
367 |
void specialized_oop_push_contents(InstanceRefKlass *ref, |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
368 |
PSPromotionManager* pm, oop obj) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
369 |
T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
370 |
if (PSScavenge::should_scavenge(referent_addr)) { |
1 | 371 |
ReferenceProcessor* rp = PSScavenge::reference_processor(); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
372 |
if (rp->discover_reference(obj, ref->reference_type())) { |
1 | 373 |
// reference already enqueued, referent and next will be traversed later |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
374 |
ref->InstanceKlass::oop_push_contents(pm, obj); |
1 | 375 |
return; |
376 |
} else { |
|
377 |
// treat referent as normal oop |
|
378 |
pm->claim_or_forward_depth(referent_addr); |
|
379 |
} |
|
380 |
} |
|
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
381 |
// Treat discovered as normal oop, if ref is not "active", |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
382 |
// i.e. if next is non-NULL. |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
383 |
T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
384 |
if (ReferenceProcessor::pending_list_uses_discovered_field()) { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
385 |
T next_oop = oopDesc::load_heap_oop(next_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
386 |
if (!oopDesc::is_null(next_oop)) { // i.e. ref is not "active" |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
387 |
T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
388 |
debug_only( |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
389 |
if(TraceReferenceGC && PrintGCDetails) { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
390 |
gclog_or_tty->print_cr(" Process discovered as normal " |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
391 |
INTPTR_FORMAT, discovered_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
392 |
} |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
393 |
) |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
394 |
if (PSScavenge::should_scavenge(discovered_addr)) { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
395 |
pm->claim_or_forward_depth(discovered_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
396 |
} |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
397 |
} |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
398 |
} else { |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
399 |
#ifdef ASSERT |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
400 |
// In the case of older JDKs which do not use the discovered |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
401 |
// field for the pending list, an inactive ref (next != NULL) |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
402 |
// must always have a NULL discovered field. |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
403 |
oop next = oopDesc::load_decode_heap_oop(next_addr); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
404 |
oop discovered = java_lang_ref_Reference::discovered(obj); |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
405 |
assert(oopDesc::is_null(next) || oopDesc::is_null(discovered), |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
406 |
err_msg("Found an inactive reference " PTR_FORMAT " with a non-NULL discovered field", |
10537
23539f11e110
7090259: Fix hotspot sources to build with old compilers
kvn
parents:
10526
diff
changeset
|
407 |
(oopDesc*)obj)); |
10526
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
408 |
#endif |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
409 |
} |
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
410 |
|
3e92f211533f
4965777: GC changes to support use of discovered field for pending references
ysr
parents:
9935
diff
changeset
|
411 |
// Treat next as normal oop; next is a link in the reference queue. |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
412 |
if (PSScavenge::should_scavenge(next_addr)) { |
1 | 413 |
pm->claim_or_forward_depth(next_addr); |
414 |
} |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
415 |
ref->InstanceKlass::oop_push_contents(pm, obj); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
416 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
417 |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
418 |
void InstanceRefKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
419 |
if (UseCompressedOops) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
420 |
specialized_oop_push_contents<narrowOop>(this, pm, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
421 |
} else { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
422 |
specialized_oop_push_contents<oop>(this, pm, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
423 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
424 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
425 |
|
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
426 |
template <class T> |
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
427 |
void specialized_oop_update_pointers(InstanceRefKlass *ref, |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
428 |
ParCompactionManager* cm, oop obj) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
429 |
T* referent_addr = (T*)java_lang_ref_Reference::referent_addr(obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
430 |
PSParallelCompact::adjust_pointer(referent_addr); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
431 |
T* next_addr = (T*)java_lang_ref_Reference::next_addr(obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
432 |
PSParallelCompact::adjust_pointer(next_addr); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
433 |
T* discovered_addr = (T*)java_lang_ref_Reference::discovered_addr(obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
434 |
PSParallelCompact::adjust_pointer(discovered_addr); |
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
435 |
debug_only(trace_reference_gc("InstanceRefKlass::oop_update_ptrs", obj, |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
436 |
referent_addr, next_addr, discovered_addr);) |
1 | 437 |
} |
438 |
||
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
439 |
int InstanceRefKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
440 |
InstanceKlass::oop_update_pointers(cm, obj); |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
441 |
if (UseCompressedOops) { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
442 |
specialized_oop_update_pointers<narrowOop>(this, cm, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
443 |
} else { |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
444 |
specialized_oop_update_pointers<oop>(this, cm, obj); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
445 |
} |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
446 |
return size_helper(); |
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
447 |
} |
15482
470d0b0c09f1
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
13738
diff
changeset
|
448 |
#endif // INCLUDE_ALL_GCS |
1 | 449 |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
450 |
void InstanceRefKlass::update_nonstatic_oop_maps(Klass* k) { |
1 | 451 |
// Clear the nonstatic oop-map entries corresponding to referent |
452 |
// and nextPending field. They are treated specially by the |
|
453 |
// garbage collector. |
|
454 |
// The discovered field is used only by the garbage collector |
|
455 |
// and is also treated specially. |
|
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
456 |
InstanceKlass* ik = InstanceKlass::cast(k); |
1 | 457 |
|
458 |
// Check that we have the right class |
|
459 |
debug_only(static bool first_time = true); |
|
4571 | 460 |
assert(k == SystemDictionary::Reference_klass() && first_time, |
1 | 461 |
"Invalid update of maps"); |
462 |
debug_only(first_time = false); |
|
3693 | 463 |
assert(ik->nonstatic_oop_map_count() == 1, "just checking"); |
1 | 464 |
|
465 |
OopMapBlock* map = ik->start_of_nonstatic_oop_maps(); |
|
466 |
||
467 |
// Check that the current map is (2,4) - currently points at field with |
|
468 |
// offset 2 (words) and has 4 map entries. |
|
469 |
debug_only(int offset = java_lang_ref_Reference::referent_offset); |
|
3694
942b7bc7f28c
6845368: large objects cause a crash or unexpected exception
jcoomes
parents:
3693
diff
changeset
|
470 |
debug_only(unsigned int count = ((java_lang_ref_Reference::discovered_offset - |
360
21d113ecbf6a
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
1
diff
changeset
|
471 |
java_lang_ref_Reference::referent_offset)/heapOopSize) + 1); |
1 | 472 |
|
473 |
if (UseSharedSpaces) { |
|
474 |
assert(map->offset() == java_lang_ref_Reference::queue_offset && |
|
3693 | 475 |
map->count() == 1, "just checking"); |
1 | 476 |
} else { |
3693 | 477 |
assert(map->offset() == offset && map->count() == count, |
1 | 478 |
"just checking"); |
479 |
||
480 |
// Update map to (3,1) - point to offset of 3 (words) with 1 map entry. |
|
481 |
map->set_offset(java_lang_ref_Reference::queue_offset); |
|
3693 | 482 |
map->set_count(1); |
1 | 483 |
} |
484 |
} |
|
485 |
||
486 |
||
487 |
// Verification |
|
488 |
||
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
489 |
void InstanceRefKlass::oop_verify_on(oop obj, outputStream* st) { |
13728
882756847a04
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
12780
diff
changeset
|
490 |
InstanceKlass::oop_verify_on(obj, st); |
1 | 491 |
// Verify referent field |
492 |
oop referent = java_lang_ref_Reference::referent(obj); |
|
493 |
||
494 |
// We should make this general to all heaps |
|
495 |
GenCollectedHeap* gch = NULL; |
|
496 |
if (Universe::heap()->kind() == CollectedHeap::GenCollectedHeap) |
|
497 |
gch = GenCollectedHeap::heap(); |
|
498 |
||
499 |
if (referent != NULL) { |
|
500 |
guarantee(referent->is_oop(), "referent field heap failed"); |
|
501 |
} |
|
502 |
// Verify next field |
|
503 |
oop next = java_lang_ref_Reference::next(obj); |
|
504 |
if (next != NULL) { |
|
1374
4c24294029a9
6711316: Open source the Garbage-First garbage collector
ysr
parents:
360
diff
changeset
|
505 |
guarantee(next->is_oop(), "next field verify failed"); |
1 | 506 |
guarantee(next->is_instanceRef(), "next field verify failed"); |
507 |
} |
|
508 |
} |
|
509 |
||
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
510 |
bool InstanceRefKlass::owns_pending_list_lock(JavaThread* thread) { |
7450
e44c68293be8
7006471: fix for 6988439 crashes when pending list lock is null
coleenp
parents:
7446
diff
changeset
|
511 |
if (java_lang_ref_Reference::pending_list_lock() == NULL) return false; |
7446
9193aa209467
6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents:
7397
diff
changeset
|
512 |
Handle h_lock(thread, java_lang_ref_Reference::pending_list_lock()); |
9193aa209467
6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents:
7397
diff
changeset
|
513 |
return ObjectSynchronizer::current_thread_holds_lock(thread, h_lock); |
9193aa209467
6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents:
7397
diff
changeset
|
514 |
} |
9193aa209467
6988439: Parallel Class Loading test deadlock involving MethodData_lock and Pending List Lock
coleenp
parents:
7397
diff
changeset
|
515 |
|
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
516 |
void InstanceRefKlass::acquire_pending_list_lock(BasicLock *pending_list_basic_lock) { |
1 | 517 |
// we may enter this with pending exception set |
518 |
PRESERVE_EXCEPTION_MARK; // exceptions are never thrown, needed for TRAPS argument |
|
12780
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
519 |
|
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
520 |
// Create a HandleMark in case we retry a GC multiple times. |
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
521 |
// Each time we attempt the GC, we allocate the handle below |
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
522 |
// to hold the pending list lock. We want to free this handle. |
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
523 |
HandleMark hm; |
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
524 |
|
1 | 525 |
Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock()); |
526 |
ObjectSynchronizer::fast_enter(h_lock, pending_list_basic_lock, false, THREAD); |
|
527 |
assert(ObjectSynchronizer::current_thread_holds_lock( |
|
528 |
JavaThread::current(), h_lock), |
|
529 |
"Locking should have succeeded"); |
|
530 |
if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; |
|
531 |
} |
|
532 |
||
13738
d67be49a5beb
7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents:
13728
diff
changeset
|
533 |
void InstanceRefKlass::release_and_notify_pending_list_lock( |
1 | 534 |
BasicLock *pending_list_basic_lock) { |
535 |
// we may enter this with pending exception set |
|
536 |
PRESERVE_EXCEPTION_MARK; // exceptions are never thrown, needed for TRAPS argument |
|
12780
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
537 |
|
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
538 |
// Create a HandleMark in case we retry a GC multiple times. |
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
539 |
// Each time we attempt the GC, we allocate the handle below |
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
540 |
// to hold the pending list lock. We want to free this handle. |
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
541 |
HandleMark hm; |
689210d5dd05
7158682: G1: Handle leak when running nsk.sysdict tests
johnc
parents:
12379
diff
changeset
|
542 |
|
1 | 543 |
Handle h_lock(THREAD, java_lang_ref_Reference::pending_list_lock()); |
544 |
assert(ObjectSynchronizer::current_thread_holds_lock( |
|
545 |
JavaThread::current(), h_lock), |
|
546 |
"Lock should be held"); |
|
547 |
// Notify waiters on pending lists lock if there is any reference. |
|
548 |
if (java_lang_ref_Reference::pending_list() != NULL) { |
|
549 |
ObjectSynchronizer::notifyall(h_lock, THREAD); |
|
550 |
} |
|
551 |
ObjectSynchronizer::fast_exit(h_lock(), pending_list_basic_lock, THREAD); |
|
552 |
if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION; |
|
553 |
} |