Mercurial > hg > truffle
annotate src/share/vm/oops/objArrayKlass.cpp @ 4710:41406797186b
7113012: G1: rename not-fully-young GCs as "mixed"
Summary: Renamed partially-young GCs as mixed and fully-young GCs as young. Change all external output that includes those terms (GC log and GC ergo log) as well as any comments, fields, methods, etc. The changeset also includes very minor code tidying up (added some curly brackets).
Reviewed-by: johnc, brutisso
author | tonyp |
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date | Fri, 16 Dec 2011 02:14:27 -0500 |
parents | e5383553fd4e |
children | a735aec54ea4 |
rev | line source |
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0 | 1 /* |
2119 | 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 * | |
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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/systemDictionary.hpp" | |
27 #include "classfile/vmSymbols.hpp" | |
28 #include "gc_implementation/shared/markSweep.inline.hpp" | |
29 #include "gc_interface/collectedHeap.inline.hpp" | |
30 #include "memory/genOopClosures.inline.hpp" | |
31 #include "memory/resourceArea.hpp" | |
32 #include "memory/universe.inline.hpp" | |
33 #include "oops/instanceKlass.hpp" | |
34 #include "oops/objArrayKlass.hpp" | |
35 #include "oops/objArrayKlass.inline.hpp" | |
36 #include "oops/objArrayKlassKlass.hpp" | |
37 #include "oops/objArrayOop.hpp" | |
38 #include "oops/oop.inline.hpp" | |
39 #include "oops/oop.inline2.hpp" | |
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40 #include "oops/symbol.hpp" |
1972 | 41 #include "runtime/handles.inline.hpp" |
42 #include "runtime/mutexLocker.hpp" | |
43 #include "utilities/copy.hpp" | |
44 #ifndef SERIALGC | |
45 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" | |
46 #include "gc_implementation/g1/g1OopClosures.inline.hpp" | |
47 #include "gc_implementation/g1/g1RemSet.inline.hpp" | |
48 #include "gc_implementation/g1/heapRegionSeq.inline.hpp" | |
49 #include "gc_implementation/parNew/parOopClosures.inline.hpp" | |
50 #include "gc_implementation/parallelScavenge/psCompactionManager.hpp" | |
51 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" | |
52 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
53 #include "oops/oop.pcgc.inline.hpp" | |
54 #endif | |
0 | 55 |
56 int objArrayKlass::oop_size(oop obj) const { | |
57 assert(obj->is_objArray(), "must be object array"); | |
58 return objArrayOop(obj)->object_size(); | |
59 } | |
60 | |
61 objArrayOop objArrayKlass::allocate(int length, TRAPS) { | |
62 if (length >= 0) { | |
63 if (length <= arrayOopDesc::max_array_length(T_OBJECT)) { | |
64 int size = objArrayOopDesc::object_size(length); | |
65 KlassHandle h_k(THREAD, as_klassOop()); | |
66 objArrayOop a = (objArrayOop)CollectedHeap::array_allocate(h_k, size, length, CHECK_NULL); | |
67 assert(a->is_parsable(), "Can't publish unless parsable"); | |
68 return a; | |
69 } else { | |
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70 report_java_out_of_memory("Requested array size exceeds VM limit"); |
0 | 71 THROW_OOP_0(Universe::out_of_memory_error_array_size()); |
72 } | |
73 } else { | |
74 THROW_0(vmSymbols::java_lang_NegativeArraySizeException()); | |
75 } | |
76 } | |
77 | |
78 static int multi_alloc_counter = 0; | |
79 | |
80 oop objArrayKlass::multi_allocate(int rank, jint* sizes, TRAPS) { | |
81 int length = *sizes; | |
82 // Call to lower_dimension uses this pointer, so most be called before a | |
83 // possible GC | |
84 KlassHandle h_lower_dimension(THREAD, lower_dimension()); | |
85 // If length < 0 allocate will throw an exception. | |
86 objArrayOop array = allocate(length, CHECK_NULL); | |
87 assert(array->is_parsable(), "Don't handlize unless parsable"); | |
88 objArrayHandle h_array (THREAD, array); | |
89 if (rank > 1) { | |
90 if (length != 0) { | |
91 for (int index = 0; index < length; index++) { | |
92 arrayKlass* ak = arrayKlass::cast(h_lower_dimension()); | |
93 oop sub_array = ak->multi_allocate(rank-1, &sizes[1], CHECK_NULL); | |
94 assert(sub_array->is_parsable(), "Don't publish until parsable"); | |
95 h_array->obj_at_put(index, sub_array); | |
96 } | |
97 } else { | |
98 // Since this array dimension has zero length, nothing will be | |
99 // allocated, however the lower dimension values must be checked | |
100 // for illegal values. | |
101 for (int i = 0; i < rank - 1; ++i) { | |
102 sizes += 1; | |
103 if (*sizes < 0) { | |
104 THROW_0(vmSymbols::java_lang_NegativeArraySizeException()); | |
105 } | |
106 } | |
107 } | |
108 } | |
109 return h_array(); | |
110 } | |
111 | |
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112 // Either oop or narrowOop depending on UseCompressedOops. |
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113 template <class T> void objArrayKlass::do_copy(arrayOop s, T* src, |
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114 arrayOop d, T* dst, int length, TRAPS) { |
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115 |
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116 BarrierSet* bs = Universe::heap()->barrier_set(); |
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117 // For performance reasons, we assume we are that the write barrier we |
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118 // are using has optimized modes for arrays of references. At least one |
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119 // of the asserts below will fail if this is not the case. |
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120 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt"); |
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121 assert(bs->has_write_ref_array_pre_opt(), "For pre-barrier as well."); |
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122 |
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123 if (s == d) { |
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124 // since source and destination are equal we do not need conversion checks. |
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125 assert(length > 0, "sanity check"); |
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126 bs->write_ref_array_pre(dst, length); |
113
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127 Copy::conjoint_oops_atomic(src, dst, length); |
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128 } else { |
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129 // We have to make sure all elements conform to the destination array |
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130 klassOop bound = objArrayKlass::cast(d->klass())->element_klass(); |
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131 klassOop stype = objArrayKlass::cast(s->klass())->element_klass(); |
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132 if (stype == bound || Klass::cast(stype)->is_subtype_of(bound)) { |
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133 // elements are guaranteed to be subtypes, so no check necessary |
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134 bs->write_ref_array_pre(dst, length); |
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135 Copy::conjoint_oops_atomic(src, dst, length); |
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136 } else { |
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137 // slow case: need individual subtype checks |
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138 // note: don't use obj_at_put below because it includes a redundant store check |
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139 T* from = src; |
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140 T* end = from + length; |
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141 for (T* p = dst; from < end; from++, p++) { |
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142 // XXX this is going to be slow. |
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143 T element = *from; |
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144 // even slower now |
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145 bool element_is_null = oopDesc::is_null(element); |
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146 oop new_val = element_is_null ? oop(NULL) |
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147 : oopDesc::decode_heap_oop_not_null(element); |
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148 if (element_is_null || |
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149 Klass::cast((new_val->klass()))->is_subtype_of(bound)) { |
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150 bs->write_ref_field_pre(p, new_val); |
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151 *p = *from; |
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152 } else { |
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153 // We must do a barrier to cover the partial copy. |
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154 const size_t pd = pointer_delta(p, dst, (size_t)heapOopSize); |
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155 // pointer delta is scaled to number of elements (length field in |
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156 // objArrayOop) which we assume is 32 bit. |
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157 assert(pd == (size_t)(int)pd, "length field overflow"); |
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158 bs->write_ref_array((HeapWord*)dst, pd); |
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159 THROW(vmSymbols::java_lang_ArrayStoreException()); |
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160 return; |
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161 } |
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162 } |
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163 } |
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164 } |
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165 bs->write_ref_array((HeapWord*)dst, length); |
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166 } |
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167 |
0 | 168 void objArrayKlass::copy_array(arrayOop s, int src_pos, arrayOop d, |
169 int dst_pos, int length, TRAPS) { | |
170 assert(s->is_objArray(), "must be obj array"); | |
171 | |
172 if (!d->is_objArray()) { | |
173 THROW(vmSymbols::java_lang_ArrayStoreException()); | |
174 } | |
175 | |
176 // Check is all offsets and lengths are non negative | |
177 if (src_pos < 0 || dst_pos < 0 || length < 0) { | |
178 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); | |
179 } | |
180 // Check if the ranges are valid | |
181 if ( (((unsigned int) length + (unsigned int) src_pos) > (unsigned int) s->length()) | |
182 || (((unsigned int) length + (unsigned int) dst_pos) > (unsigned int) d->length()) ) { | |
183 THROW(vmSymbols::java_lang_ArrayIndexOutOfBoundsException()); | |
184 } | |
185 | |
186 // Special case. Boundary cases must be checked first | |
187 // This allows the following call: copy_array(s, s.length(), d.length(), 0). | |
188 // This is correct, since the position is supposed to be an 'in between point', i.e., s.length(), | |
189 // points to the right of the last element. | |
190 if (length==0) { | |
191 return; | |
192 } | |
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193 if (UseCompressedOops) { |
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194 narrowOop* const src = objArrayOop(s)->obj_at_addr<narrowOop>(src_pos); |
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195 narrowOop* const dst = objArrayOop(d)->obj_at_addr<narrowOop>(dst_pos); |
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196 do_copy<narrowOop>(s, src, d, dst, length, CHECK); |
0 | 197 } else { |
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198 oop* const src = objArrayOop(s)->obj_at_addr<oop>(src_pos); |
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199 oop* const dst = objArrayOop(d)->obj_at_addr<oop>(dst_pos); |
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200 do_copy<oop> (s, src, d, dst, length, CHECK); |
0 | 201 } |
202 } | |
203 | |
204 | |
205 klassOop objArrayKlass::array_klass_impl(bool or_null, int n, TRAPS) { | |
206 objArrayKlassHandle h_this(THREAD, as_klassOop()); | |
207 return array_klass_impl(h_this, or_null, n, CHECK_NULL); | |
208 } | |
209 | |
210 | |
211 klassOop objArrayKlass::array_klass_impl(objArrayKlassHandle this_oop, bool or_null, int n, TRAPS) { | |
212 | |
213 assert(this_oop->dimension() <= n, "check order of chain"); | |
214 int dimension = this_oop->dimension(); | |
215 if (dimension == n) | |
216 return this_oop(); | |
217 | |
218 objArrayKlassHandle ak (THREAD, this_oop->higher_dimension()); | |
219 if (ak.is_null()) { | |
220 if (or_null) return NULL; | |
221 | |
222 ResourceMark rm; | |
223 JavaThread *jt = (JavaThread *)THREAD; | |
224 { | |
225 MutexLocker mc(Compile_lock, THREAD); // for vtables | |
226 // Ensure atomic creation of higher dimensions | |
227 MutexLocker mu(MultiArray_lock, THREAD); | |
228 | |
229 // Check if another thread beat us | |
230 ak = objArrayKlassHandle(THREAD, this_oop->higher_dimension()); | |
231 if( ak.is_null() ) { | |
232 | |
233 // Create multi-dim klass object and link them together | |
234 klassOop new_klass = | |
235 objArrayKlassKlass::cast(Universe::objArrayKlassKlassObj())-> | |
236 allocate_objArray_klass(dimension + 1, this_oop, CHECK_NULL); | |
237 ak = objArrayKlassHandle(THREAD, new_klass); | |
2119 | 238 ak->set_lower_dimension(this_oop()); |
239 OrderAccess::storestore(); | |
0 | 240 this_oop->set_higher_dimension(ak()); |
241 assert(ak->oop_is_objArray(), "incorrect initialization of objArrayKlass"); | |
242 } | |
243 } | |
244 } else { | |
245 CHECK_UNHANDLED_OOPS_ONLY(Thread::current()->clear_unhandled_oops()); | |
246 } | |
247 | |
248 if (or_null) { | |
249 return ak->array_klass_or_null(n); | |
250 } | |
251 return ak->array_klass(n, CHECK_NULL); | |
252 } | |
253 | |
254 klassOop objArrayKlass::array_klass_impl(bool or_null, TRAPS) { | |
255 return array_klass_impl(or_null, dimension() + 1, CHECK_NULL); | |
256 } | |
257 | |
258 bool objArrayKlass::can_be_primary_super_slow() const { | |
259 if (!bottom_klass()->klass_part()->can_be_primary_super()) | |
260 // array of interfaces | |
261 return false; | |
262 else | |
263 return Klass::can_be_primary_super_slow(); | |
264 } | |
265 | |
266 objArrayOop objArrayKlass::compute_secondary_supers(int num_extra_slots, TRAPS) { | |
267 // interfaces = { cloneable_klass, serializable_klass, elemSuper[], ... }; | |
268 objArrayOop es = Klass::cast(element_klass())->secondary_supers(); | |
269 objArrayHandle elem_supers (THREAD, es); | |
270 int num_elem_supers = elem_supers.is_null() ? 0 : elem_supers->length(); | |
271 int num_secondaries = num_extra_slots + 2 + num_elem_supers; | |
272 if (num_secondaries == 2) { | |
273 // Must share this for correct bootstrapping! | |
274 return Universe::the_array_interfaces_array(); | |
275 } else { | |
276 objArrayOop sec_oop = oopFactory::new_system_objArray(num_secondaries, CHECK_NULL); | |
277 objArrayHandle secondaries(THREAD, sec_oop); | |
1142 | 278 secondaries->obj_at_put(num_extra_slots+0, SystemDictionary::Cloneable_klass()); |
279 secondaries->obj_at_put(num_extra_slots+1, SystemDictionary::Serializable_klass()); | |
0 | 280 for (int i = 0; i < num_elem_supers; i++) { |
281 klassOop elem_super = (klassOop) elem_supers->obj_at(i); | |
282 klassOop array_super = elem_super->klass_part()->array_klass_or_null(); | |
283 assert(array_super != NULL, "must already have been created"); | |
284 secondaries->obj_at_put(num_extra_slots+2+i, array_super); | |
285 } | |
286 return secondaries(); | |
287 } | |
288 } | |
289 | |
290 bool objArrayKlass::compute_is_subtype_of(klassOop k) { | |
291 if (!k->klass_part()->oop_is_objArray()) | |
292 return arrayKlass::compute_is_subtype_of(k); | |
293 | |
294 objArrayKlass* oak = objArrayKlass::cast(k); | |
295 return element_klass()->klass_part()->is_subtype_of(oak->element_klass()); | |
296 } | |
297 | |
298 void objArrayKlass::initialize(TRAPS) { | |
299 Klass::cast(bottom_klass())->initialize(THREAD); // dispatches to either instanceKlass or typeArrayKlass | |
300 } | |
301 | |
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302 #define ObjArrayKlass_SPECIALIZED_OOP_ITERATE(T, a, p, do_oop) \ |
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303 { \ |
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304 T* p = (T*)(a)->base(); \ |
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305 T* const end = p + (a)->length(); \ |
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306 while (p < end) { \ |
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307 do_oop; \ |
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308 p++; \ |
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309 } \ |
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310 } |
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311 |
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312 #define ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(T, a, p, low, high, do_oop) \ |
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313 { \ |
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314 T* const l = (T*)(low); \ |
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315 T* const h = (T*)(high); \ |
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316 T* p = (T*)(a)->base(); \ |
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317 T* end = p + (a)->length(); \ |
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318 if (p < l) p = l; \ |
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319 if (end > h) end = h; \ |
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320 while (p < end) { \ |
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321 do_oop; \ |
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322 ++p; \ |
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323 } \ |
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324 } |
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325 |
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326 #define ObjArrayKlass_OOP_ITERATE(a, p, do_oop) \ |
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327 if (UseCompressedOops) { \ |
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328 ObjArrayKlass_SPECIALIZED_OOP_ITERATE(narrowOop, \ |
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329 a, p, do_oop) \ |
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330 } else { \ |
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331 ObjArrayKlass_SPECIALIZED_OOP_ITERATE(oop, \ |
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332 a, p, do_oop) \ |
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333 } |
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334 |
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335 #define ObjArrayKlass_BOUNDED_OOP_ITERATE(a, p, low, high, do_oop) \ |
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336 if (UseCompressedOops) { \ |
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337 ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop, \ |
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338 a, p, low, high, do_oop) \ |
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339 } else { \ |
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340 ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop, \ |
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341 a, p, low, high, do_oop) \ |
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342 } |
0 | 343 |
344 void objArrayKlass::oop_follow_contents(oop obj) { | |
345 assert (obj->is_array(), "obj must be array"); | |
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346 objArrayOop(obj)->follow_header(); |
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347 if (UseCompressedOops) { |
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348 objarray_follow_contents<narrowOop>(obj, 0); |
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349 } else { |
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350 objarray_follow_contents<oop>(obj, 0); |
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351 } |
0 | 352 } |
353 | |
354 #ifndef SERIALGC | |
355 void objArrayKlass::oop_follow_contents(ParCompactionManager* cm, | |
356 oop obj) { | |
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357 assert(obj->is_array(), "obj must be array"); |
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358 objArrayOop(obj)->follow_header(cm); |
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359 if (UseCompressedOops) { |
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360 objarray_follow_contents<narrowOop>(cm, obj, 0); |
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361 } else { |
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362 objarray_follow_contents<oop>(cm, obj, 0); |
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363 } |
0 | 364 } |
365 #endif // SERIALGC | |
366 | |
367 #define ObjArrayKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ | |
368 \ | |
369 int objArrayKlass::oop_oop_iterate##nv_suffix(oop obj, \ | |
370 OopClosureType* closure) { \ | |
371 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::oa); \ | |
372 assert (obj->is_array(), "obj must be array"); \ | |
373 objArrayOop a = objArrayOop(obj); \ | |
374 /* Get size before changing pointers. */ \ | |
375 /* Don't call size() or oop_size() since that is a virtual call. */ \ | |
376 int size = a->object_size(); \ | |
377 if (closure->do_header()) { \ | |
378 a->oop_iterate_header(closure); \ | |
379 } \ | |
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380 ObjArrayKlass_OOP_ITERATE(a, p, (closure)->do_oop##nv_suffix(p)) \ |
0 | 381 return size; \ |
382 } | |
383 | |
384 #define ObjArrayKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \ | |
385 \ | |
386 int objArrayKlass::oop_oop_iterate##nv_suffix##_m(oop obj, \ | |
387 OopClosureType* closure, \ | |
388 MemRegion mr) { \ | |
389 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::oa); \ | |
390 assert(obj->is_array(), "obj must be array"); \ | |
391 objArrayOop a = objArrayOop(obj); \ | |
392 /* Get size before changing pointers. */ \ | |
393 /* Don't call size() or oop_size() since that is a virtual call */ \ | |
394 int size = a->object_size(); \ | |
395 if (closure->do_header()) { \ | |
396 a->oop_iterate_header(closure, mr); \ | |
397 } \ | |
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398 ObjArrayKlass_BOUNDED_OOP_ITERATE( \ |
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399 a, p, mr.start(), mr.end(), (closure)->do_oop##nv_suffix(p)) \ |
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400 return size; \ |
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401 } |
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402 |
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403 // Like oop_oop_iterate but only iterates over a specified range and only used |
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404 // for objArrayOops. |
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405 #define ObjArrayKlass_OOP_OOP_ITERATE_DEFN_r(OopClosureType, nv_suffix) \ |
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406 \ |
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407 int objArrayKlass::oop_oop_iterate_range##nv_suffix(oop obj, \ |
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408 OopClosureType* closure, \ |
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409 int start, int end) { \ |
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410 SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::oa); \ |
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411 assert(obj->is_array(), "obj must be array"); \ |
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412 objArrayOop a = objArrayOop(obj); \ |
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413 /* Get size before changing pointers. */ \ |
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414 /* Don't call size() or oop_size() since that is a virtual call */ \ |
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415 int size = a->object_size(); \ |
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416 if (UseCompressedOops) { \ |
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417 HeapWord* low = start == 0 ? (HeapWord*)a : (HeapWord*)a->obj_at_addr<narrowOop>(start);\ |
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418 /* this might be wierd if end needs to be aligned on HeapWord boundary */ \ |
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419 HeapWord* high = (HeapWord*)((narrowOop*)a->base() + end); \ |
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420 MemRegion mr(low, high); \ |
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421 if (closure->do_header()) { \ |
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422 a->oop_iterate_header(closure, mr); \ |
0 | 423 } \ |
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424 ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop, \ |
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425 a, p, low, high, (closure)->do_oop##nv_suffix(p)) \ |
0 | 426 } else { \ |
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427 HeapWord* low = start == 0 ? (HeapWord*)a : (HeapWord*)a->obj_at_addr<oop>(start); \ |
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428 HeapWord* high = (HeapWord*)((oop*)a->base() + end); \ |
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429 MemRegion mr(low, high); \ |
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430 if (closure->do_header()) { \ |
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431 a->oop_iterate_header(closure, mr); \ |
0 | 432 } \ |
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433 ObjArrayKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop, \ |
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434 a, p, low, high, (closure)->do_oop##nv_suffix(p)) \ |
0 | 435 } \ |
436 return size; \ | |
437 } | |
438 | |
439 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DEFN) | |
342
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440 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DEFN) |
0 | 441 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DEFN_m) |
342
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442 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DEFN_m) |
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443 ALL_OOP_OOP_ITERATE_CLOSURES_1(ObjArrayKlass_OOP_OOP_ITERATE_DEFN_r) |
342
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444 ALL_OOP_OOP_ITERATE_CLOSURES_2(ObjArrayKlass_OOP_OOP_ITERATE_DEFN_r) |
0 | 445 |
446 int objArrayKlass::oop_adjust_pointers(oop obj) { | |
447 assert(obj->is_objArray(), "obj must be obj array"); | |
448 objArrayOop a = objArrayOop(obj); | |
449 // Get size before changing pointers. | |
450 // Don't call size() or oop_size() since that is a virtual call. | |
451 int size = a->object_size(); | |
452 a->adjust_header(); | |
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453 ObjArrayKlass_OOP_ITERATE(a, p, MarkSweep::adjust_pointer(p)) |
0 | 454 return size; |
455 } | |
456 | |
457 #ifndef SERIALGC | |
458 void objArrayKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
459 assert(obj->is_objArray(), "obj must be obj array"); | |
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460 ObjArrayKlass_OOP_ITERATE( \ |
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461 objArrayOop(obj), p, \ |
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462 if (PSScavenge::should_scavenge(p)) { \ |
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463 pm->claim_or_forward_depth(p); \ |
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464 }) |
0 | 465 } |
466 | |
467 int objArrayKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
468 assert (obj->is_objArray(), "obj must be obj array"); | |
469 objArrayOop a = objArrayOop(obj); | |
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470 ObjArrayKlass_OOP_ITERATE(a, p, PSParallelCompact::adjust_pointer(p)) |
0 | 471 return a->object_size(); |
472 } | |
473 #endif // SERIALGC | |
474 | |
475 // JVM support | |
476 | |
477 jint objArrayKlass::compute_modifier_flags(TRAPS) const { | |
478 // The modifier for an objectArray is the same as its element | |
479 if (element_klass() == NULL) { | |
480 assert(Universe::is_bootstrapping(), "partial objArray only at startup"); | |
481 return JVM_ACC_ABSTRACT | JVM_ACC_FINAL | JVM_ACC_PUBLIC; | |
482 } | |
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483 // Return the flags of the bottom element type. |
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484 jint element_flags = Klass::cast(bottom_klass())->compute_modifier_flags(CHECK_0); |
0 | 485 |
486 return (element_flags & (JVM_ACC_PUBLIC | JVM_ACC_PRIVATE | JVM_ACC_PROTECTED)) | |
487 | (JVM_ACC_ABSTRACT | JVM_ACC_FINAL); | |
488 } | |
489 | |
490 | |
491 #ifndef PRODUCT | |
492 // Printing | |
493 | |
494 void objArrayKlass::oop_print_on(oop obj, outputStream* st) { | |
495 arrayKlass::oop_print_on(obj, st); | |
496 assert(obj->is_objArray(), "must be objArray"); | |
497 objArrayOop oa = objArrayOop(obj); | |
498 int print_len = MIN2((intx) oa->length(), MaxElementPrintSize); | |
499 for(int index = 0; index < print_len; index++) { | |
500 st->print(" - %3d : ", index); | |
501 oa->obj_at(index)->print_value_on(st); | |
502 st->cr(); | |
503 } | |
504 int remaining = oa->length() - print_len; | |
505 if (remaining > 0) { | |
506 tty->print_cr(" - <%d more elements, increase MaxElementPrintSize to print>", remaining); | |
507 } | |
508 } | |
509 | |
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510 #endif //PRODUCT |
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511 |
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512 static int max_objArray_print_length = 4; |
0 | 513 |
514 void objArrayKlass::oop_print_value_on(oop obj, outputStream* st) { | |
515 assert(obj->is_objArray(), "must be objArray"); | |
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516 st->print("a "); |
0 | 517 element_klass()->print_value_on(st); |
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518 int len = objArrayOop(obj)->length(); |
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519 st->print("[%d] ", len); |
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520 obj->print_address_on(st); |
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521 if (NOT_PRODUCT(PrintOopAddress ||) PrintMiscellaneous && (WizardMode || Verbose)) { |
665
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522 st->print("{"); |
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523 for (int i = 0; i < len; i++) { |
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524 if (i > max_objArray_print_length) { |
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525 st->print("..."); break; |
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526 } |
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527 st->print(" "INTPTR_FORMAT, (intptr_t)(void*)objArrayOop(obj)->obj_at(i)); |
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528 } |
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529 st->print(" }"); |
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530 } |
0 | 531 } |
532 | |
533 const char* objArrayKlass::internal_name() const { | |
534 return external_name(); | |
535 } | |
536 | |
537 // Verification | |
538 | |
539 void objArrayKlass::oop_verify_on(oop obj, outputStream* st) { | |
540 arrayKlass::oop_verify_on(obj, st); | |
541 guarantee(obj->is_objArray(), "must be objArray"); | |
542 objArrayOop oa = objArrayOop(obj); | |
543 for(int index = 0; index < oa->length(); index++) { | |
544 guarantee(oa->obj_at(index)->is_oop_or_null(), "should be oop"); | |
545 } | |
546 } | |
547 | |
548 void objArrayKlass::oop_verify_old_oop(oop obj, oop* p, bool allow_dirty) { | |
549 /* $$$ move into remembered set verification? | |
550 RememberedSet::verify_old_oop(obj, p, allow_dirty, true); | |
551 */ | |
552 } | |
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553 void objArrayKlass::oop_verify_old_oop(oop obj, narrowOop* p, bool allow_dirty) {} |