1 /*
2 * Copyright (c) 1997, 2007, Oracle and/or its affiliates. All rights reserved.
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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 # include "incls/_precompiled.incl"
26 # include "incls/_arrayKlassKlass.cpp.incl"
27
28
29 klassOop arrayKlassKlass::create_klass(TRAPS) {
30 arrayKlassKlass o;
31 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());
32 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL);
33 // Make sure size calculation is right
34 assert(k()->size() == align_object_size(header_size()), "wrong size for object");
35 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror, make links
36 return k();
37 }
38
39 bool arrayKlassKlass::oop_is_parsable(oop obj) const {
40 assert(obj->is_klass(), "must be klass");
41 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
42 return (!ak->null_vtbl()) && ak->object_is_parsable();
43 }
44
45 void arrayKlassKlass::oop_follow_contents(oop obj) {
46 assert(obj->is_klass(), "must be klass");
47 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
48 MarkSweep::mark_and_push(ak->adr_component_mirror());
49 MarkSweep::mark_and_push(ak->adr_lower_dimension());
50 MarkSweep::mark_and_push(ak->adr_higher_dimension());
51 {
52 HandleMark hm;
53 ak->vtable()->oop_follow_contents();
54 }
55 klassKlass::oop_follow_contents(obj);
56 }
57
58 #ifndef SERIALGC
59 void arrayKlassKlass::oop_follow_contents(ParCompactionManager* cm,
60 oop obj) {
61 assert(obj->is_klass(), "must be klass");
62 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
63 PSParallelCompact::mark_and_push(cm, ak->adr_component_mirror());
64 PSParallelCompact::mark_and_push(cm, ak->adr_lower_dimension());
65 PSParallelCompact::mark_and_push(cm, ak->adr_higher_dimension());
66 {
67 HandleMark hm;
68 ak->vtable()->oop_follow_contents(cm);
69 }
70 klassKlass::oop_follow_contents(cm, obj);
71 }
72 #endif // SERIALGC
73
74
75 int arrayKlassKlass::oop_adjust_pointers(oop obj) {
76 assert(obj->is_klass(), "must be klass");
77 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
78 MarkSweep::adjust_pointer(ak->adr_component_mirror());
79 MarkSweep::adjust_pointer(ak->adr_lower_dimension());
80 MarkSweep::adjust_pointer(ak->adr_higher_dimension());
81 {
82 HandleMark hm;
83 ak->vtable()->oop_adjust_pointers();
84 }
85 return klassKlass::oop_adjust_pointers(obj);
86 }
87
88
89 int arrayKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
90 assert(obj->is_klass(), "must be klass");
91 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
92 blk->do_oop(ak->adr_component_mirror());
93 blk->do_oop(ak->adr_lower_dimension());
94 blk->do_oop(ak->adr_higher_dimension());
95 ak->vtable()->oop_oop_iterate(blk);
96 return klassKlass::oop_oop_iterate(obj, blk);
97 }
98
99
100 int arrayKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) {
101 assert(obj->is_klass(), "must be klass");
102 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
103 blk->do_oop(ak->adr_component_mirror());
104 blk->do_oop(ak->adr_lower_dimension());
105 blk->do_oop(ak->adr_higher_dimension());
106 ak->vtable()->oop_oop_iterate_m(blk, mr);
107 return klassKlass::oop_oop_iterate_m(obj, blk, mr);
108 }
109
110 #ifndef SERIALGC
111 void arrayKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
112 assert(obj->blueprint()->oop_is_arrayKlass(),"must be an array klass");
113 }
114
115 int arrayKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
116 assert(obj->is_klass(), "must be klass");
117 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
118 PSParallelCompact::adjust_pointer(ak->adr_component_mirror());
119 PSParallelCompact::adjust_pointer(ak->adr_lower_dimension());
120 PSParallelCompact::adjust_pointer(ak->adr_higher_dimension());
121 {
122 HandleMark hm;
123 ak->vtable()->oop_update_pointers(cm);
124 }
125 return klassKlass::oop_update_pointers(cm, obj);
126 }
127
128 int
129 arrayKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
130 HeapWord* beg_addr, HeapWord* end_addr) {
131 assert(obj->is_klass(), "must be klass");
132 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
133
134 oop* p;
135 p = ak->adr_component_mirror();
136 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
137 p = ak->adr_lower_dimension();
138 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
139 p = ak->adr_higher_dimension();
140 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr);
141
142 {
143 HandleMark hm;
144 ak->vtable()->oop_update_pointers(cm, beg_addr, end_addr);
145 }
146 return klassKlass::oop_update_pointers(cm, obj, beg_addr, end_addr);
147 }
148 #endif // SERIALGC
149
150 // Printing
151
152 void arrayKlassKlass::oop_print_on(oop obj, outputStream* st) {
153 assert(obj->is_klass(), "must be klass");
154 klassKlass::oop_print_on(obj, st);
155 }
156
157 void arrayKlassKlass::oop_print_value_on(oop obj, outputStream* st) {
158 assert(obj->is_klass(), "must be klass");
159 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
160 for(int index = 0; index < ak->dimension(); index++) {
161 st->print("[]");
162 }
163 }
164
165
166 const char* arrayKlassKlass::internal_name() const {
167 return "{array class}";
168 }
169
170 void arrayKlassKlass::oop_verify_on(oop obj, outputStream* st) {
171 klassKlass::oop_verify_on(obj, st);
172
173 arrayKlass* ak = arrayKlass::cast(klassOop(obj));
174 if (!obj->partially_loaded()) {
175 if (ak->component_mirror() != NULL)
176 guarantee(ak->component_mirror()->klass(), "should have a class");
177 if (ak->lower_dimension() != NULL)
178 guarantee(ak->lower_dimension()->klass(), "should have a class");
179 if (ak->higher_dimension() != NULL)
180 guarantee(ak->higher_dimension()->klass(), "should have a class");
181 }
182 }