Mercurial > hg > graal-compiler
annotate src/share/vm/oops/klassKlass.cpp @ 1257:7b4415a18c8a
Merge
author | kvn |
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date | Fri, 12 Feb 2010 15:27:36 -0800 |
parents | 4e6abf09f540 |
children | c18cbe5936b8 |
rev | line source |
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0 | 1 /* |
2 * Copyright 1997-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
21 * have any questions. | |
22 * | |
23 */ | |
24 | |
25 # include "incls/_precompiled.incl" | |
26 # include "incls/_klassKlass.cpp.incl" | |
27 | |
28 int klassKlass::oop_size(oop obj) const { | |
29 assert (obj->is_klass(), "must be a klassOop"); | |
30 return klassOop(obj)->klass_part()->klass_oop_size(); | |
31 } | |
32 | |
33 klassOop klassKlass::create_klass(TRAPS) { | |
34 KlassHandle h_this_klass; | |
35 klassKlass o; | |
36 // for bootstrapping, handles may not be available yet. | |
37 klassOop k = base_create_klass_oop(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); | |
38 k->set_klass(k); // point to thyself | |
39 // Do not try to allocate mirror, java.lang.Class not loaded at this point. | |
40 // See Universe::fixup_mirrors() | |
41 return k; | |
42 } | |
43 | |
44 void klassKlass::oop_follow_contents(oop obj) { | |
45 Klass* k = Klass::cast(klassOop(obj)); | |
46 // If we are alive it is valid to keep our superclass and subtype caches alive | |
47 MarkSweep::mark_and_push(k->adr_super()); | |
48 for (juint i = 0; i < Klass::primary_super_limit(); i++) | |
49 MarkSweep::mark_and_push(k->adr_primary_supers()+i); | |
50 MarkSweep::mark_and_push(k->adr_secondary_super_cache()); | |
51 MarkSweep::mark_and_push(k->adr_secondary_supers()); | |
52 MarkSweep::mark_and_push(k->adr_java_mirror()); | |
53 MarkSweep::mark_and_push(k->adr_name()); | |
54 // We follow the subklass and sibling links at the end of the | |
55 // marking phase, since otherwise following them will prevent | |
56 // class unloading (all classes are transitively linked from | |
57 // java.lang.Object). | |
58 MarkSweep::revisit_weak_klass_link(k); | |
59 obj->follow_header(); | |
60 } | |
61 | |
62 #ifndef SERIALGC | |
63 void klassKlass::oop_follow_contents(ParCompactionManager* cm, | |
64 oop obj) { | |
65 Klass* k = Klass::cast(klassOop(obj)); | |
66 // If we are alive it is valid to keep our superclass and subtype caches alive | |
67 PSParallelCompact::mark_and_push(cm, k->adr_super()); | |
68 for (juint i = 0; i < Klass::primary_super_limit(); i++) | |
69 PSParallelCompact::mark_and_push(cm, k->adr_primary_supers()+i); | |
70 PSParallelCompact::mark_and_push(cm, k->adr_secondary_super_cache()); | |
71 PSParallelCompact::mark_and_push(cm, k->adr_secondary_supers()); | |
72 PSParallelCompact::mark_and_push(cm, k->adr_java_mirror()); | |
73 PSParallelCompact::mark_and_push(cm, k->adr_name()); | |
74 // We follow the subklass and sibling links at the end of the | |
75 // marking phase, since otherwise following them will prevent | |
76 // class unloading (all classes are transitively linked from | |
77 // java.lang.Object). | |
78 PSParallelCompact::revisit_weak_klass_link(cm, k); | |
79 obj->follow_header(cm); | |
80 } | |
81 #endif // SERIALGC | |
82 | |
83 int klassKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
84 // Get size before changing pointers | |
85 int size = oop_size(obj); | |
86 Klass* k = Klass::cast(klassOop(obj)); | |
87 blk->do_oop(k->adr_super()); | |
88 for (juint i = 0; i < Klass::primary_super_limit(); i++) | |
89 blk->do_oop(k->adr_primary_supers()+i); | |
90 blk->do_oop(k->adr_secondary_super_cache()); | |
91 blk->do_oop(k->adr_secondary_supers()); | |
92 blk->do_oop(k->adr_java_mirror()); | |
93 blk->do_oop(k->adr_name()); | |
94 // The following are in the perm gen and are treated | |
95 // specially in a later phase of a perm gen collection; ... | |
96 assert(oop(k)->is_perm(), "should be in perm"); | |
97 assert(oop(k->subklass())->is_perm_or_null(), "should be in perm"); | |
98 assert(oop(k->next_sibling())->is_perm_or_null(), "should be in perm"); | |
99 // ... don't scan them normally, but remember this klassKlass | |
100 // for later (see, for instance, oop_follow_contents above | |
101 // for what MarkSweep does with it. | |
102 if (blk->should_remember_klasses()) { | |
103 blk->remember_klass(k); | |
104 } | |
105 obj->oop_iterate_header(blk); | |
106 return size; | |
107 } | |
108 | |
109 | |
110 int klassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
111 // Get size before changing pointers | |
112 int size = oop_size(obj); | |
113 Klass* k = Klass::cast(klassOop(obj)); | |
114 oop* adr; | |
115 adr = k->adr_super(); | |
116 if (mr.contains(adr)) blk->do_oop(adr); | |
117 for (juint i = 0; i < Klass::primary_super_limit(); i++) { | |
118 adr = k->adr_primary_supers()+i; | |
119 if (mr.contains(adr)) blk->do_oop(adr); | |
120 } | |
121 adr = k->adr_secondary_super_cache(); | |
122 if (mr.contains(adr)) blk->do_oop(adr); | |
123 adr = k->adr_secondary_supers(); | |
124 if (mr.contains(adr)) blk->do_oop(adr); | |
125 adr = k->adr_java_mirror(); | |
126 if (mr.contains(adr)) blk->do_oop(adr); | |
127 adr = k->adr_name(); | |
128 if (mr.contains(adr)) blk->do_oop(adr); | |
129 // The following are "weak links" in the perm gen and are | |
130 // treated specially in a later phase of a perm gen collection. | |
131 assert(oop(k)->is_perm(), "should be in perm"); | |
132 assert(oop(k->adr_subklass())->is_perm(), "should be in perm"); | |
133 assert(oop(k->adr_next_sibling())->is_perm(), "should be in perm"); | |
134 if (blk->should_remember_klasses() | |
135 && (mr.contains(k->adr_subklass()) | |
136 || mr.contains(k->adr_next_sibling()))) { | |
137 blk->remember_klass(k); | |
138 } | |
139 obj->oop_iterate_header(blk, mr); | |
140 return size; | |
141 } | |
142 | |
143 | |
144 int klassKlass::oop_adjust_pointers(oop obj) { | |
145 // Get size before changing pointers | |
146 int size = oop_size(obj); | |
147 obj->adjust_header(); | |
148 | |
149 Klass* k = Klass::cast(klassOop(obj)); | |
150 | |
151 MarkSweep::adjust_pointer(k->adr_super()); | |
152 for (juint i = 0; i < Klass::primary_super_limit(); i++) | |
153 MarkSweep::adjust_pointer(k->adr_primary_supers()+i); | |
154 MarkSweep::adjust_pointer(k->adr_secondary_super_cache()); | |
155 MarkSweep::adjust_pointer(k->adr_secondary_supers()); | |
156 MarkSweep::adjust_pointer(k->adr_java_mirror()); | |
157 MarkSweep::adjust_pointer(k->adr_name()); | |
158 MarkSweep::adjust_pointer(k->adr_subklass()); | |
159 MarkSweep::adjust_pointer(k->adr_next_sibling()); | |
160 return size; | |
161 } | |
162 | |
163 #ifndef SERIALGC | |
164 void klassKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) { | |
165 } | |
166 | |
167 void klassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
168 } | |
169 | |
170 int klassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
171 Klass* k = Klass::cast(klassOop(obj)); | |
172 | |
173 oop* const beg_oop = k->oop_block_beg(); | |
174 oop* const end_oop = k->oop_block_end(); | |
175 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
176 PSParallelCompact::adjust_pointer(cur_oop); | |
177 } | |
178 | |
179 return oop_size(obj); | |
180 } | |
181 | |
182 int klassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, | |
183 HeapWord* beg_addr, HeapWord* end_addr) { | |
184 Klass* k = Klass::cast(klassOop(obj)); | |
185 | |
186 oop* const beg_oop = MAX2((oop*)beg_addr, k->oop_block_beg()); | |
187 oop* const end_oop = MIN2((oop*)end_addr, k->oop_block_end()); | |
188 for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) { | |
189 PSParallelCompact::adjust_pointer(cur_oop); | |
190 } | |
191 | |
192 return oop_size(obj); | |
193 } | |
194 #endif // SERIALGC | |
195 | |
196 | |
197 #ifndef PRODUCT | |
198 | |
199 // Printing | |
200 | |
201 void klassKlass::oop_print_on(oop obj, outputStream* st) { | |
202 Klass::oop_print_on(obj, st); | |
203 } | |
204 | |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
0
diff
changeset
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205 #endif //PRODUCT |
0 | 206 |
207 void klassKlass::oop_print_value_on(oop obj, outputStream* st) { | |
208 Klass::oop_print_value_on(obj, st); | |
209 } | |
210 | |
211 const char* klassKlass::internal_name() const { | |
212 return "{other class}"; | |
213 } | |
214 | |
215 | |
216 // Verification | |
217 | |
218 void klassKlass::oop_verify_on(oop obj, outputStream* st) { | |
219 Klass::oop_verify_on(obj, st); | |
220 guarantee(obj->is_perm(), "should be in permspace"); | |
221 guarantee(obj->is_klass(), "should be klass"); | |
222 | |
223 Klass* k = Klass::cast(klassOop(obj)); | |
224 if (k->super() != NULL) { | |
225 guarantee(k->super()->is_perm(), "should be in permspace"); | |
226 guarantee(k->super()->is_klass(), "should be klass"); | |
227 } | |
228 klassOop ko = k->secondary_super_cache(); | |
229 if( ko != NULL ) { | |
230 guarantee(ko->is_perm(), "should be in permspace"); | |
231 guarantee(ko->is_klass(), "should be klass"); | |
232 } | |
233 for( uint i = 0; i < primary_super_limit(); i++ ) { | |
234 oop ko = k->adr_primary_supers()[i]; // Cannot use normal accessor because it asserts | |
235 if( ko != NULL ) { | |
236 guarantee(ko->is_perm(), "should be in permspace"); | |
237 guarantee(ko->is_klass(), "should be klass"); | |
238 } | |
239 } | |
240 | |
241 if (k->java_mirror() != NULL || (k->oop_is_instance() && instanceKlass::cast(klassOop(obj))->is_loaded())) { | |
242 guarantee(k->java_mirror() != NULL, "should be allocated"); | |
243 guarantee(k->java_mirror()->is_perm(), "should be in permspace"); | |
244 guarantee(k->java_mirror()->is_instance(), "should be instance"); | |
245 } | |
246 if (k->name() != NULL) { | |
247 guarantee(Universe::heap()->is_in_permanent(k->name()), | |
248 "should be in permspace"); | |
249 guarantee(k->name()->is_symbol(), "should be symbol"); | |
250 } | |
251 } |