Mercurial > hg > graal-jvmci-8
annotate src/share/vm/oops/objArrayKlassKlass.cpp @ 2227:e5383553fd4e
7014851: Remove unused parallel compaction code
Summary: Removed.
Reviewed-by: jcoomes, brutisso
author | stefank |
---|---|
date | Tue, 08 Feb 2011 12:33:19 +0100 |
parents | 3582bf76420e |
children | c7f3d0b4570f |
rev | line source |
---|---|
0 | 1 /* |
2227 | 2 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1155
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1155
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1155
diff
changeset
|
21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaClasses.hpp" | |
27 #include "classfile/systemDictionary.hpp" | |
28 #include "gc_implementation/shared/markSweep.inline.hpp" | |
29 #include "gc_interface/collectedHeap.inline.hpp" | |
30 #include "oops/instanceKlass.hpp" | |
31 #include "oops/objArrayKlassKlass.hpp" | |
32 #include "oops/oop.inline.hpp" | |
33 #include "oops/oop.inline2.hpp" | |
0 | 34 |
35 klassOop objArrayKlassKlass::create_klass(TRAPS) { | |
36 objArrayKlassKlass o; | |
37 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); | |
38 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_0); | |
39 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); | |
40 java_lang_Class::create_mirror(k, CHECK_0); // Allocate mirror | |
41 return k(); | |
42 } | |
43 | |
44 klassOop objArrayKlassKlass::allocate_system_objArray_klass(TRAPS) { | |
45 // system_objArrays have no instance klass, so allocate with fake class, then reset to NULL | |
46 KlassHandle kk(THREAD, Universe::intArrayKlassObj()); | |
47 klassOop k = allocate_objArray_klass(1, kk, CHECK_0); | |
48 objArrayKlass* tk = (objArrayKlass*) k->klass_part(); | |
49 tk->set_element_klass(NULL); | |
50 tk->set_bottom_klass(NULL); | |
51 return k; | |
52 } | |
53 | |
54 | |
55 klassOop objArrayKlassKlass::allocate_objArray_klass(int n, KlassHandle element_klass, TRAPS) { | |
56 objArrayKlassKlassHandle this_oop(THREAD, as_klassOop()); | |
57 return allocate_objArray_klass_impl(this_oop, n, element_klass, THREAD); | |
58 } | |
59 | |
60 klassOop objArrayKlassKlass::allocate_objArray_klass_impl(objArrayKlassKlassHandle this_oop, | |
61 int n, KlassHandle element_klass, TRAPS) { | |
62 | |
63 // Eagerly allocate the direct array supertype. | |
64 KlassHandle super_klass = KlassHandle(); | |
65 if (!Universe::is_bootstrapping()) { | |
66 KlassHandle element_super (THREAD, element_klass->super()); | |
67 if (element_super.not_null()) { | |
68 // The element type has a direct super. E.g., String[] has direct super of Object[]. | |
69 super_klass = KlassHandle(THREAD, element_super->array_klass_or_null()); | |
70 bool supers_exist = super_klass.not_null(); | |
71 // Also, see if the element has secondary supertypes. | |
72 // We need an array type for each. | |
73 objArrayHandle element_supers = objArrayHandle(THREAD, | |
74 element_klass->secondary_supers()); | |
75 for( int i = element_supers->length()-1; i >= 0; i-- ) { | |
76 klassOop elem_super = (klassOop) element_supers->obj_at(i); | |
77 if (Klass::cast(elem_super)->array_klass_or_null() == NULL) { | |
78 supers_exist = false; | |
79 break; | |
80 } | |
81 } | |
82 if (!supers_exist) { | |
83 // Oops. Not allocated yet. Back out, allocate it, and retry. | |
84 #ifndef PRODUCT | |
85 if (WizardMode) { | |
86 tty->print_cr("Must retry array klass creation for depth %d",n); | |
87 } | |
88 #endif | |
89 KlassHandle ek; | |
90 { | |
91 MutexUnlocker mu(MultiArray_lock); | |
92 MutexUnlocker mc(Compile_lock); // for vtables | |
93 klassOop sk = element_super->array_klass(CHECK_0); | |
94 super_klass = KlassHandle(THREAD, sk); | |
95 for( int i = element_supers->length()-1; i >= 0; i-- ) { | |
96 KlassHandle elem_super (THREAD, element_supers->obj_at(i)); | |
97 elem_super->array_klass(CHECK_0); | |
98 } | |
99 // Now retry from the beginning | |
100 klassOop klass_oop = element_klass->array_klass(n, CHECK_0); | |
101 // Create a handle because the enclosing brace, when locking | |
102 // can cause a gc. Better to have this function return a Handle. | |
103 ek = KlassHandle(THREAD, klass_oop); | |
104 } // re-lock | |
105 return ek(); | |
106 } | |
107 } else { | |
108 // The element type is already Object. Object[] has direct super of Object. | |
1142 | 109 super_klass = KlassHandle(THREAD, SystemDictionary::Object_klass()); |
0 | 110 } |
111 } | |
112 | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
113 // Create type name for klass. |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
114 Symbol* name = NULL; |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
115 if (!element_klass->oop_is_instance() || |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
116 (name = instanceKlass::cast(element_klass())->array_name()) == NULL) { |
0 | 117 |
118 ResourceMark rm(THREAD); | |
119 char *name_str = element_klass->name()->as_C_string(); | |
120 int len = element_klass->name()->utf8_length(); | |
121 char *new_str = NEW_RESOURCE_ARRAY(char, len + 4); | |
122 int idx = 0; | |
123 new_str[idx++] = '['; | |
124 if (element_klass->oop_is_instance()) { // it could be an array or simple type | |
125 new_str[idx++] = 'L'; | |
126 } | |
127 memcpy(&new_str[idx], name_str, len * sizeof(char)); | |
128 idx += len; | |
129 if (element_klass->oop_is_instance()) { | |
130 new_str[idx++] = ';'; | |
131 } | |
132 new_str[idx++] = '\0'; | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
133 name = SymbolTable::new_symbol(new_str, CHECK_0); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
134 if (element_klass->oop_is_instance()) { |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
135 instanceKlass* ik = instanceKlass::cast(element_klass()); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
136 ik->set_array_name(name); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
137 } |
0 | 138 } |
139 | |
140 objArrayKlass o; | |
141 arrayKlassHandle k = arrayKlass::base_create_array_klass(o.vtbl_value(), | |
142 objArrayKlass::header_size(), | |
143 this_oop, | |
144 CHECK_0); | |
145 | |
146 // Initialize instance variables | |
147 objArrayKlass* oak = objArrayKlass::cast(k()); | |
148 oak->set_dimension(n); | |
149 oak->set_element_klass(element_klass()); | |
2177
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
150 oak->set_name(name); |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
151 // decrement refcount because object arrays are not explicitly freed. The |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
152 // instanceKlass array_name() keeps the name counted while the klass is |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
153 // loaded. |
3582bf76420e
6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents:
1972
diff
changeset
|
154 name->decrement_refcount(); |
0 | 155 |
156 klassOop bk; | |
157 if (element_klass->oop_is_objArray()) { | |
158 bk = objArrayKlass::cast(element_klass())->bottom_klass(); | |
159 } else { | |
160 bk = element_klass(); | |
161 } | |
162 assert(bk != NULL && (Klass::cast(bk)->oop_is_instance() || Klass::cast(bk)->oop_is_typeArray()), "invalid bottom klass"); | |
163 oak->set_bottom_klass(bk); | |
164 | |
165 oak->set_layout_helper(array_layout_helper(T_OBJECT)); | |
166 assert(oak->oop_is_javaArray(), "sanity"); | |
167 assert(oak->oop_is_objArray(), "sanity"); | |
168 | |
169 // Call complete_create_array_klass after all instance variables has been initialized. | |
170 arrayKlass::complete_create_array_klass(k, super_klass, CHECK_0); | |
171 | |
172 return k(); | |
173 } | |
174 | |
175 | |
176 void objArrayKlassKlass::oop_follow_contents(oop obj) { | |
177 assert(obj->is_klass(), "must be klass"); | |
178 assert(klassOop(obj)->klass_part()->oop_is_objArray_slow(), "must be obj array"); | |
179 | |
180 objArrayKlass* oak = objArrayKlass::cast((klassOop)obj); | |
181 MarkSweep::mark_and_push(oak->element_klass_addr()); | |
182 MarkSweep::mark_and_push(oak->bottom_klass_addr()); | |
183 | |
184 arrayKlassKlass::oop_follow_contents(obj); | |
185 } | |
186 | |
187 #ifndef SERIALGC | |
188 void objArrayKlassKlass::oop_follow_contents(ParCompactionManager* cm, | |
189 oop obj) { | |
190 assert(obj->is_klass(), "must be klass"); | |
191 assert(klassOop(obj)->klass_part()->oop_is_objArray_slow(), "must be obj array"); | |
192 | |
193 objArrayKlass* oak = objArrayKlass::cast((klassOop)obj); | |
194 PSParallelCompact::mark_and_push(cm, oak->element_klass_addr()); | |
195 PSParallelCompact::mark_and_push(cm, oak->bottom_klass_addr()); | |
196 | |
197 arrayKlassKlass::oop_follow_contents(cm, obj); | |
198 } | |
199 #endif // SERIALGC | |
200 | |
201 | |
202 int objArrayKlassKlass::oop_adjust_pointers(oop obj) { | |
203 assert(obj->is_klass(), "must be klass"); | |
204 assert(klassOop(obj)->klass_part()->oop_is_objArray_slow(), "must be obj array"); | |
205 | |
206 objArrayKlass* oak = objArrayKlass::cast((klassOop)obj); | |
207 MarkSweep::adjust_pointer(oak->element_klass_addr()); | |
208 MarkSweep::adjust_pointer(oak->bottom_klass_addr()); | |
209 | |
210 return arrayKlassKlass::oop_adjust_pointers(obj); | |
211 } | |
212 | |
213 | |
214 | |
215 int objArrayKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
216 assert(obj->is_klass(), "must be klass"); | |
217 assert(klassOop(obj)->klass_part()->oop_is_objArray_slow(), "must be obj array"); | |
218 | |
219 objArrayKlass* oak = objArrayKlass::cast((klassOop)obj); | |
220 blk->do_oop(oak->element_klass_addr()); | |
221 blk->do_oop(oak->bottom_klass_addr()); | |
222 | |
223 return arrayKlassKlass::oop_oop_iterate(obj, blk); | |
224 } | |
225 | |
226 | |
227 int | |
228 objArrayKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
229 assert(obj->is_klass(), "must be klass"); | |
230 assert(klassOop(obj)->klass_part()->oop_is_objArray_slow(), "must be obj array"); | |
231 | |
232 objArrayKlass* oak = objArrayKlass::cast((klassOop)obj); | |
233 oop* addr; | |
234 addr = oak->element_klass_addr(); | |
235 if (mr.contains(addr)) blk->do_oop(addr); | |
236 addr = oak->bottom_klass_addr(); | |
237 if (mr.contains(addr)) blk->do_oop(addr); | |
238 | |
239 return arrayKlassKlass::oop_oop_iterate(obj, blk); | |
240 } | |
241 | |
242 #ifndef SERIALGC | |
243 void objArrayKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
244 assert(obj->blueprint()->oop_is_objArrayKlass(),"must be an obj array klass"); | |
245 } | |
246 | |
247 int objArrayKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
248 assert(obj->is_klass(), "must be klass"); | |
249 assert(klassOop(obj)->klass_part()->oop_is_objArray_slow(), "must be obj array"); | |
250 | |
251 objArrayKlass* oak = objArrayKlass::cast((klassOop)obj); | |
252 PSParallelCompact::adjust_pointer(oak->element_klass_addr()); | |
253 PSParallelCompact::adjust_pointer(oak->bottom_klass_addr()); | |
254 | |
255 return arrayKlassKlass::oop_update_pointers(cm, obj); | |
256 } | |
257 #endif // SERIALGC | |
258 | |
259 #ifndef PRODUCT | |
260 | |
261 // Printing | |
262 | |
263 void objArrayKlassKlass::oop_print_on(oop obj, outputStream* st) { | |
264 assert(obj->is_klass(), "must be klass"); | |
265 objArrayKlass* oak = (objArrayKlass*) klassOop(obj)->klass_part(); | |
266 klassKlass::oop_print_on(obj, st); | |
267 st->print(" - instance klass: "); | |
268 oak->element_klass()->print_value_on(st); | |
269 st->cr(); | |
270 } | |
271 | |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1142
diff
changeset
|
272 #endif //PRODUCT |
0 | 273 |
274 void objArrayKlassKlass::oop_print_value_on(oop obj, outputStream* st) { | |
275 assert(obj->is_klass(), "must be klass"); | |
276 objArrayKlass* oak = (objArrayKlass*) klassOop(obj)->klass_part(); | |
277 | |
278 oak->element_klass()->print_value_on(st); | |
279 st->print("[]"); | |
280 } | |
281 | |
282 const char* objArrayKlassKlass::internal_name() const { | |
283 return "{object array class}"; | |
284 } | |
285 | |
286 | |
287 // Verification | |
288 | |
289 void objArrayKlassKlass::oop_verify_on(oop obj, outputStream* st) { | |
290 klassKlass::oop_verify_on(obj, st); | |
291 objArrayKlass* oak = objArrayKlass::cast((klassOop)obj); | |
292 guarantee(oak->element_klass()->is_perm(), "should be in permspace"); | |
293 guarantee(oak->element_klass()->is_klass(), "should be klass"); | |
294 guarantee(oak->bottom_klass()->is_perm(), "should be in permspace"); | |
295 guarantee(oak->bottom_klass()->is_klass(), "should be klass"); | |
296 Klass* bk = Klass::cast(oak->bottom_klass()); | |
297 guarantee(bk->oop_is_instance() || bk->oop_is_typeArray(), "invalid bottom klass"); | |
298 } |