Mercurial > hg > truffle
annotate src/share/vm/oops/arrayKlassKlass.cpp @ 2194:face83fc8882
7012088: jump to 0 address because of lack of memory ordering in SignatureHandlerLibrary::add
Summary: Write method signature handler under lock to prevent race with growable array resizing
Reviewed-by: dsamersoff, dholmes
author | coleenp |
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date | Wed, 02 Feb 2011 18:38:40 -0500 |
parents | f95d63e2154a |
children | e5383553fd4e |
rev | line source |
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0 | 1 /* |
1972 | 2 * Copyright (c) 1997, 2010, 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
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "gc_implementation/shared/markSweep.inline.hpp" | |
28 #include "oops/arrayKlassKlass.hpp" | |
29 #include "oops/oop.inline.hpp" | |
30 #include "runtime/handles.inline.hpp" | |
0 | 31 |
32 | |
33 klassOop arrayKlassKlass::create_klass(TRAPS) { | |
34 arrayKlassKlass o; | |
35 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); | |
36 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); | |
37 // Make sure size calculation is right | |
38 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); | |
39 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror, make links | |
40 return k(); | |
41 } | |
42 | |
43 bool arrayKlassKlass::oop_is_parsable(oop obj) const { | |
44 assert(obj->is_klass(), "must be klass"); | |
45 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
46 return (!ak->null_vtbl()) && ak->object_is_parsable(); | |
47 } | |
48 | |
49 void arrayKlassKlass::oop_follow_contents(oop obj) { | |
50 assert(obj->is_klass(), "must be klass"); | |
51 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
52 MarkSweep::mark_and_push(ak->adr_component_mirror()); | |
53 MarkSweep::mark_and_push(ak->adr_lower_dimension()); | |
54 MarkSweep::mark_and_push(ak->adr_higher_dimension()); | |
55 { | |
56 HandleMark hm; | |
57 ak->vtable()->oop_follow_contents(); | |
58 } | |
59 klassKlass::oop_follow_contents(obj); | |
60 } | |
61 | |
62 #ifndef SERIALGC | |
63 void arrayKlassKlass::oop_follow_contents(ParCompactionManager* cm, | |
64 oop obj) { | |
65 assert(obj->is_klass(), "must be klass"); | |
66 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
67 PSParallelCompact::mark_and_push(cm, ak->adr_component_mirror()); | |
68 PSParallelCompact::mark_and_push(cm, ak->adr_lower_dimension()); | |
69 PSParallelCompact::mark_and_push(cm, ak->adr_higher_dimension()); | |
70 { | |
71 HandleMark hm; | |
72 ak->vtable()->oop_follow_contents(cm); | |
73 } | |
74 klassKlass::oop_follow_contents(cm, obj); | |
75 } | |
76 #endif // SERIALGC | |
77 | |
78 | |
79 int arrayKlassKlass::oop_adjust_pointers(oop obj) { | |
80 assert(obj->is_klass(), "must be klass"); | |
81 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
82 MarkSweep::adjust_pointer(ak->adr_component_mirror()); | |
83 MarkSweep::adjust_pointer(ak->adr_lower_dimension()); | |
84 MarkSweep::adjust_pointer(ak->adr_higher_dimension()); | |
85 { | |
86 HandleMark hm; | |
87 ak->vtable()->oop_adjust_pointers(); | |
88 } | |
89 return klassKlass::oop_adjust_pointers(obj); | |
90 } | |
91 | |
92 | |
93 int arrayKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
94 assert(obj->is_klass(), "must be klass"); | |
95 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
96 blk->do_oop(ak->adr_component_mirror()); | |
97 blk->do_oop(ak->adr_lower_dimension()); | |
98 blk->do_oop(ak->adr_higher_dimension()); | |
99 ak->vtable()->oop_oop_iterate(blk); | |
100 return klassKlass::oop_oop_iterate(obj, blk); | |
101 } | |
102 | |
103 | |
104 int arrayKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
105 assert(obj->is_klass(), "must be klass"); | |
106 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
107 blk->do_oop(ak->adr_component_mirror()); | |
108 blk->do_oop(ak->adr_lower_dimension()); | |
109 blk->do_oop(ak->adr_higher_dimension()); | |
110 ak->vtable()->oop_oop_iterate_m(blk, mr); | |
111 return klassKlass::oop_oop_iterate_m(obj, blk, mr); | |
112 } | |
113 | |
114 #ifndef SERIALGC | |
115 void arrayKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
116 assert(obj->blueprint()->oop_is_arrayKlass(),"must be an array klass"); | |
117 } | |
118 | |
119 int arrayKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
120 assert(obj->is_klass(), "must be klass"); | |
121 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
122 PSParallelCompact::adjust_pointer(ak->adr_component_mirror()); | |
123 PSParallelCompact::adjust_pointer(ak->adr_lower_dimension()); | |
124 PSParallelCompact::adjust_pointer(ak->adr_higher_dimension()); | |
125 { | |
126 HandleMark hm; | |
127 ak->vtable()->oop_update_pointers(cm); | |
128 } | |
129 return klassKlass::oop_update_pointers(cm, obj); | |
130 } | |
131 | |
132 int | |
133 arrayKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, | |
134 HeapWord* beg_addr, HeapWord* end_addr) { | |
135 assert(obj->is_klass(), "must be klass"); | |
136 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
137 | |
138 oop* p; | |
139 p = ak->adr_component_mirror(); | |
140 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
141 p = ak->adr_lower_dimension(); | |
142 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
143 p = ak->adr_higher_dimension(); | |
144 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
145 | |
146 { | |
147 HandleMark hm; | |
148 ak->vtable()->oop_update_pointers(cm, beg_addr, end_addr); | |
149 } | |
150 return klassKlass::oop_update_pointers(cm, obj, beg_addr, end_addr); | |
151 } | |
152 #endif // SERIALGC | |
153 | |
154 // Printing | |
155 | |
156 void arrayKlassKlass::oop_print_on(oop obj, outputStream* st) { | |
157 assert(obj->is_klass(), "must be klass"); | |
158 klassKlass::oop_print_on(obj, st); | |
159 } | |
160 | |
161 void arrayKlassKlass::oop_print_value_on(oop obj, outputStream* st) { | |
162 assert(obj->is_klass(), "must be klass"); | |
163 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
164 for(int index = 0; index < ak->dimension(); index++) { | |
165 st->print("[]"); | |
166 } | |
167 } | |
168 | |
169 | |
170 const char* arrayKlassKlass::internal_name() const { | |
171 return "{array class}"; | |
172 } | |
173 | |
174 void arrayKlassKlass::oop_verify_on(oop obj, outputStream* st) { | |
175 klassKlass::oop_verify_on(obj, st); | |
176 | |
177 arrayKlass* ak = arrayKlass::cast(klassOop(obj)); | |
178 if (!obj->partially_loaded()) { | |
179 if (ak->component_mirror() != NULL) | |
180 guarantee(ak->component_mirror()->klass(), "should have a class"); | |
181 if (ak->lower_dimension() != NULL) | |
182 guarantee(ak->lower_dimension()->klass(), "should have a class"); | |
183 if (ak->higher_dimension() != NULL) | |
184 guarantee(ak->higher_dimension()->klass(), "should have a class"); | |
185 } | |
186 } |