Mercurial > hg > truffle
annotate src/share/vm/oops/constantPoolKlass.cpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | 3b2dea75431e |
| children | dad31fc330cd |
| rev | line source |
|---|---|
| 0 | 1 /* |
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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 * | |
|
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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 "gc_interface/collectedHeap.inline.hpp" | |
| 29 #include "memory/oopFactory.hpp" | |
| 30 #include "memory/permGen.hpp" | |
| 31 #include "memory/universe.inline.hpp" | |
| 32 #include "oops/constantPoolKlass.hpp" | |
| 33 #include "oops/constantPoolOop.hpp" | |
| 34 #include "oops/oop.inline.hpp" | |
| 35 #include "oops/oop.inline2.hpp" | |
| 36 #include "oops/symbolOop.hpp" | |
| 37 #include "runtime/handles.inline.hpp" | |
| 38 #ifdef TARGET_OS_FAMILY_linux | |
| 39 # include "thread_linux.inline.hpp" | |
| 40 #endif | |
| 41 #ifdef TARGET_OS_FAMILY_solaris | |
| 42 # include "thread_solaris.inline.hpp" | |
| 43 #endif | |
| 44 #ifdef TARGET_OS_FAMILY_windows | |
| 45 # include "thread_windows.inline.hpp" | |
| 46 #endif | |
| 47 #ifndef SERIALGC | |
| 48 #include "gc_implementation/parNew/parOopClosures.inline.hpp" | |
| 49 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" | |
| 50 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
| 51 #include "memory/cardTableRS.hpp" | |
| 52 #include "oops/oop.pcgc.inline.hpp" | |
| 53 #endif | |
| 0 | 54 |
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55 constantPoolOop constantPoolKlass::allocate(int length, bool is_conc_safe, TRAPS) { |
| 0 | 56 int size = constantPoolOopDesc::object_size(length); |
| 57 KlassHandle klass (THREAD, as_klassOop()); | |
| 58 constantPoolOop c = | |
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59 (constantPoolOop)CollectedHeap::permanent_obj_allocate(klass, size, CHECK_NULL); |
| 0 | 60 |
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61 c->set_length(length); |
| 0 | 62 c->set_tags(NULL); |
| 63 c->set_cache(NULL); | |
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64 c->set_operands(NULL); |
| 0 | 65 c->set_pool_holder(NULL); |
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66 c->set_flags(0); |
| 0 | 67 // only set to non-zero if constant pool is merged by RedefineClasses |
| 68 c->set_orig_length(0); | |
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69 // if constant pool may change during RedefineClasses, it is created |
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70 // unsafe for GC concurrent processing. |
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71 c->set_is_conc_safe(is_conc_safe); |
| 0 | 72 // all fields are initialized; needed for GC |
| 73 | |
| 74 // initialize tag array | |
| 75 // Note: cannot introduce constant pool handle before since it is not | |
| 76 // completely initialized (no class) -> would cause assertion failure | |
| 77 constantPoolHandle pool (THREAD, c); | |
| 78 typeArrayOop t_oop = oopFactory::new_permanent_byteArray(length, CHECK_NULL); | |
| 79 typeArrayHandle tags (THREAD, t_oop); | |
| 80 for (int index = 0; index < length; index++) { | |
| 81 tags()->byte_at_put(index, JVM_CONSTANT_Invalid); | |
| 82 } | |
| 83 pool->set_tags(tags()); | |
| 84 | |
| 85 return pool(); | |
| 86 } | |
| 87 | |
| 88 klassOop constantPoolKlass::create_klass(TRAPS) { | |
| 89 constantPoolKlass o; | |
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90 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); |
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91 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); |
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92 // Make sure size calculation is right |
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93 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); |
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94 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror |
| 0 | 95 return k(); |
| 96 } | |
| 97 | |
| 98 int constantPoolKlass::oop_size(oop obj) const { | |
| 99 assert(obj->is_constantPool(), "must be constantPool"); | |
| 100 return constantPoolOop(obj)->object_size(); | |
| 101 } | |
| 102 | |
| 103 | |
| 104 void constantPoolKlass::oop_follow_contents(oop obj) { | |
| 105 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 106 constantPoolOop cp = (constantPoolOop) obj; | |
| 107 // Performance tweak: We skip iterating over the klass pointer since we | |
| 108 // know that Universe::constantPoolKlassObj never moves. | |
| 109 | |
| 110 // If the tags array is null we are in the middle of allocating this constant pool | |
| 111 if (cp->tags() != NULL) { | |
| 112 // gc of constant pool contents | |
| 113 oop* base = (oop*)cp->base(); | |
| 114 for (int i = 0; i < cp->length(); i++) { | |
| 115 if (cp->is_pointer_entry(i)) { | |
| 116 if (*base != NULL) MarkSweep::mark_and_push(base); | |
| 117 } | |
| 118 base++; | |
| 119 } | |
| 120 // gc of constant pool instance variables | |
| 121 MarkSweep::mark_and_push(cp->tags_addr()); | |
| 122 MarkSweep::mark_and_push(cp->cache_addr()); | |
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123 MarkSweep::mark_and_push(cp->operands_addr()); |
| 0 | 124 MarkSweep::mark_and_push(cp->pool_holder_addr()); |
| 125 } | |
| 126 } | |
| 127 | |
| 128 #ifndef SERIALGC | |
| 129 void constantPoolKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 130 oop obj) { | |
| 131 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 132 constantPoolOop cp = (constantPoolOop) obj; | |
| 133 // Performance tweak: We skip iterating over the klass pointer since we | |
| 134 // know that Universe::constantPoolKlassObj never moves. | |
| 135 | |
| 136 // If the tags array is null we are in the middle of allocating this constant | |
| 137 // pool. | |
| 138 if (cp->tags() != NULL) { | |
| 139 // gc of constant pool contents | |
| 140 oop* base = (oop*)cp->base(); | |
| 141 for (int i = 0; i < cp->length(); i++) { | |
| 142 if (cp->is_pointer_entry(i)) { | |
| 143 if (*base != NULL) PSParallelCompact::mark_and_push(cm, base); | |
| 144 } | |
| 145 base++; | |
| 146 } | |
| 147 // gc of constant pool instance variables | |
| 148 PSParallelCompact::mark_and_push(cm, cp->tags_addr()); | |
| 149 PSParallelCompact::mark_and_push(cm, cp->cache_addr()); | |
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150 PSParallelCompact::mark_and_push(cm, cp->operands_addr()); |
| 0 | 151 PSParallelCompact::mark_and_push(cm, cp->pool_holder_addr()); |
| 152 } | |
| 153 } | |
| 154 #endif // SERIALGC | |
| 155 | |
| 156 | |
| 157 int constantPoolKlass::oop_adjust_pointers(oop obj) { | |
| 158 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 159 constantPoolOop cp = (constantPoolOop) obj; | |
| 160 // Get size before changing pointers. | |
| 161 // Don't call size() or oop_size() since that is a virtual call. | |
| 162 int size = cp->object_size(); | |
| 163 // Performance tweak: We skip iterating over the klass pointer since we | |
| 164 // know that Universe::constantPoolKlassObj never moves. | |
| 165 | |
| 166 // If the tags array is null we are in the middle of allocating this constant | |
| 167 // pool. | |
| 168 if (cp->tags() != NULL) { | |
| 169 oop* base = (oop*)cp->base(); | |
| 170 for (int i = 0; i< cp->length(); i++) { | |
| 171 if (cp->is_pointer_entry(i)) { | |
| 172 MarkSweep::adjust_pointer(base); | |
| 173 } | |
| 174 base++; | |
| 175 } | |
| 176 } | |
| 177 MarkSweep::adjust_pointer(cp->tags_addr()); | |
| 178 MarkSweep::adjust_pointer(cp->cache_addr()); | |
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179 MarkSweep::adjust_pointer(cp->operands_addr()); |
| 0 | 180 MarkSweep::adjust_pointer(cp->pool_holder_addr()); |
| 181 return size; | |
| 182 } | |
| 183 | |
| 184 | |
| 185 int constantPoolKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 186 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 187 // Performance tweak: We skip iterating over the klass pointer since we | |
| 188 // know that Universe::constantPoolKlassObj never moves. | |
| 189 constantPoolOop cp = (constantPoolOop) obj; | |
| 190 // Get size before changing pointers. | |
| 191 // Don't call size() or oop_size() since that is a virtual call. | |
| 192 int size = cp->object_size(); | |
| 193 | |
| 194 // If the tags array is null we are in the middle of allocating this constant | |
| 195 // pool. | |
| 196 if (cp->tags() != NULL) { | |
| 197 oop* base = (oop*)cp->base(); | |
| 198 for (int i = 0; i < cp->length(); i++) { | |
| 199 if (cp->is_pointer_entry(i)) { | |
| 200 blk->do_oop(base); | |
| 201 } | |
| 202 base++; | |
| 203 } | |
| 204 } | |
| 205 blk->do_oop(cp->tags_addr()); | |
| 206 blk->do_oop(cp->cache_addr()); | |
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207 blk->do_oop(cp->operands_addr()); |
| 0 | 208 blk->do_oop(cp->pool_holder_addr()); |
| 209 return size; | |
| 210 } | |
| 211 | |
| 212 | |
| 213 int constantPoolKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
| 214 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 215 // Performance tweak: We skip iterating over the klass pointer since we | |
| 216 // know that Universe::constantPoolKlassObj never moves. | |
| 217 constantPoolOop cp = (constantPoolOop) obj; | |
| 218 // Get size before changing pointers. | |
| 219 // Don't call size() or oop_size() since that is a virtual call. | |
| 220 int size = cp->object_size(); | |
| 221 | |
| 222 // If the tags array is null we are in the middle of allocating this constant | |
| 223 // pool. | |
| 224 if (cp->tags() != NULL) { | |
| 225 oop* base = (oop*)cp->base(); | |
| 226 for (int i = 0; i < cp->length(); i++) { | |
| 227 if (mr.contains(base)) { | |
| 228 if (cp->is_pointer_entry(i)) { | |
| 229 blk->do_oop(base); | |
| 230 } | |
| 231 } | |
| 232 base++; | |
| 233 } | |
| 234 } | |
| 235 oop* addr; | |
| 236 addr = cp->tags_addr(); | |
| 237 blk->do_oop(addr); | |
| 238 addr = cp->cache_addr(); | |
| 239 blk->do_oop(addr); | |
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240 addr = cp->operands_addr(); |
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241 blk->do_oop(addr); |
| 0 | 242 addr = cp->pool_holder_addr(); |
| 243 blk->do_oop(addr); | |
| 244 return size; | |
| 245 } | |
| 246 | |
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247 bool constantPoolKlass::oop_is_conc_safe(oop obj) const { |
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248 assert(obj->is_constantPool(), "must be constantPool"); |
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249 return constantPoolOop(obj)->is_conc_safe(); |
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250 } |
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251 |
| 0 | 252 #ifndef SERIALGC |
| 253 int constantPoolKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 254 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 255 constantPoolOop cp = (constantPoolOop) obj; | |
| 256 | |
| 257 // If the tags array is null we are in the middle of allocating this constant | |
| 258 // pool. | |
| 259 if (cp->tags() != NULL) { | |
| 260 oop* base = (oop*)cp->base(); | |
| 261 for (int i = 0; i < cp->length(); ++i, ++base) { | |
| 262 if (cp->is_pointer_entry(i)) { | |
| 263 PSParallelCompact::adjust_pointer(base); | |
| 264 } | |
| 265 } | |
| 266 } | |
| 267 PSParallelCompact::adjust_pointer(cp->tags_addr()); | |
| 268 PSParallelCompact::adjust_pointer(cp->cache_addr()); | |
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269 PSParallelCompact::adjust_pointer(cp->operands_addr()); |
| 0 | 270 PSParallelCompact::adjust_pointer(cp->pool_holder_addr()); |
| 271 return cp->object_size(); | |
| 272 } | |
| 273 | |
| 274 int | |
| 275 constantPoolKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, | |
| 276 HeapWord* beg_addr, HeapWord* end_addr) { | |
| 277 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 278 constantPoolOop cp = (constantPoolOop) obj; | |
| 279 | |
| 280 // If the tags array is null we are in the middle of allocating this constant | |
| 281 // pool. | |
| 282 if (cp->tags() != NULL) { | |
| 283 oop* base = (oop*)cp->base(); | |
| 284 oop* const beg_oop = MAX2((oop*)beg_addr, base); | |
| 285 oop* const end_oop = MIN2((oop*)end_addr, base + cp->length()); | |
| 286 const size_t beg_idx = pointer_delta(beg_oop, base, sizeof(oop*)); | |
| 287 const size_t end_idx = pointer_delta(end_oop, base, sizeof(oop*)); | |
| 288 for (size_t cur_idx = beg_idx; cur_idx < end_idx; ++cur_idx, ++base) { | |
| 289 if (cp->is_pointer_entry(int(cur_idx))) { | |
| 290 PSParallelCompact::adjust_pointer(base); | |
| 291 } | |
| 292 } | |
| 293 } | |
| 294 | |
| 295 oop* p; | |
| 296 p = cp->tags_addr(); | |
| 297 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
| 298 p = cp->cache_addr(); | |
| 299 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
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300 p = cp->operands_addr(); |
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301 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); |
| 0 | 302 p = cp->pool_holder_addr(); |
| 303 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
| 304 | |
| 305 return cp->object_size(); | |
| 306 } | |
| 307 | |
| 308 void constantPoolKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
| 309 assert(obj->is_constantPool(), "should be constant pool"); | |
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310 constantPoolOop cp = (constantPoolOop) obj; |
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311 if (AnonymousClasses && cp->has_pseudo_string() && cp->tags() != NULL) { |
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312 oop* base = (oop*)cp->base(); |
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313 for (int i = 0; i < cp->length(); ++i, ++base) { |
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314 if (cp->tag_at(i).is_string()) { |
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315 if (PSScavenge::should_scavenge(base)) { |
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316 pm->claim_or_forward_depth(base); |
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317 } |
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318 } |
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319 } |
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320 } |
| 0 | 321 } |
| 322 #endif // SERIALGC | |
| 323 | |
| 324 // Printing | |
| 325 | |
| 326 void constantPoolKlass::oop_print_on(oop obj, outputStream* st) { | |
| 327 EXCEPTION_MARK; | |
| 328 oop anObj; | |
| 329 assert(obj->is_constantPool(), "must be constantPool"); | |
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330 Klass::oop_print_on(obj, st); |
| 0 | 331 constantPoolOop cp = constantPoolOop(obj); |
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332 if (cp->flags() != 0) { |
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333 st->print(" - flags: 0x%x", cp->flags()); |
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334 if (cp->has_pseudo_string()) st->print(" has_pseudo_string"); |
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335 if (cp->has_invokedynamic()) st->print(" has_invokedynamic"); |
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336 st->cr(); |
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337 } |
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338 st->print_cr(" - cache: " INTPTR_FORMAT, cp->cache()); |
| 0 | 339 |
| 340 for (int index = 1; index < cp->length(); index++) { // Index 0 is unused | |
| 341 st->print(" - %3d : ", index); | |
| 342 cp->tag_at(index).print_on(st); | |
| 343 st->print(" : "); | |
| 344 switch (cp->tag_at(index).value()) { | |
| 345 case JVM_CONSTANT_Class : | |
| 346 { anObj = cp->klass_at(index, CATCH); | |
| 347 anObj->print_value_on(st); | |
| 348 st->print(" {0x%lx}", (address)anObj); | |
| 349 } | |
| 350 break; | |
| 351 case JVM_CONSTANT_Fieldref : | |
| 352 case JVM_CONSTANT_Methodref : | |
| 353 case JVM_CONSTANT_InterfaceMethodref : | |
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354 st->print("klass_index=%d", cp->uncached_klass_ref_index_at(index)); |
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355 st->print(" name_and_type_index=%d", cp->uncached_name_and_type_ref_index_at(index)); |
| 0 | 356 break; |
| 357 case JVM_CONSTANT_UnresolvedString : | |
| 358 case JVM_CONSTANT_String : | |
|
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359 if (cp->is_pseudo_string_at(index)) { |
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360 anObj = cp->pseudo_string_at(index); |
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361 } else { |
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362 anObj = cp->string_at(index, CATCH); |
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363 } |
| 0 | 364 anObj->print_value_on(st); |
| 365 st->print(" {0x%lx}", (address)anObj); | |
| 366 break; | |
| 367 case JVM_CONSTANT_Integer : | |
| 368 st->print("%d", cp->int_at(index)); | |
| 369 break; | |
| 370 case JVM_CONSTANT_Float : | |
| 371 st->print("%f", cp->float_at(index)); | |
| 372 break; | |
| 373 case JVM_CONSTANT_Long : | |
| 374 st->print_jlong(cp->long_at(index)); | |
| 375 index++; // Skip entry following eigth-byte constant | |
| 376 break; | |
| 377 case JVM_CONSTANT_Double : | |
| 378 st->print("%lf", cp->double_at(index)); | |
| 379 index++; // Skip entry following eigth-byte constant | |
| 380 break; | |
| 381 case JVM_CONSTANT_NameAndType : | |
| 382 st->print("name_index=%d", cp->name_ref_index_at(index)); | |
| 383 st->print(" signature_index=%d", cp->signature_ref_index_at(index)); | |
| 384 break; | |
| 385 case JVM_CONSTANT_Utf8 : | |
| 386 cp->symbol_at(index)->print_value_on(st); | |
| 387 break; | |
| 388 case JVM_CONSTANT_UnresolvedClass : // fall-through | |
| 389 case JVM_CONSTANT_UnresolvedClassInError: { | |
| 390 // unresolved_klass_at requires lock or safe world. | |
| 391 oop entry = *cp->obj_at_addr(index); | |
| 392 entry->print_value_on(st); | |
| 393 } | |
| 394 break; | |
| 1602 | 395 case JVM_CONSTANT_MethodHandle : |
| 396 st->print("ref_kind=%d", cp->method_handle_ref_kind_at(index)); | |
| 397 st->print(" ref_index=%d", cp->method_handle_index_at(index)); | |
| 398 break; | |
| 399 case JVM_CONSTANT_MethodType : | |
| 400 st->print("signature_index=%d", cp->method_type_index_at(index)); | |
| 401 break; | |
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402 case JVM_CONSTANT_InvokeDynamic : |
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403 { |
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404 st->print("bootstrap_method_index=%d", cp->invoke_dynamic_bootstrap_method_ref_index_at(index)); |
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405 st->print(" name_and_type_index=%d", cp->invoke_dynamic_name_and_type_ref_index_at(index)); |
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406 int argc = cp->invoke_dynamic_argument_count_at(index); |
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407 if (argc > 0) { |
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408 for (int arg_i = 0; arg_i < argc; arg_i++) { |
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409 int arg = cp->invoke_dynamic_argument_index_at(index, arg_i); |
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410 st->print((arg_i == 0 ? " arguments={%d" : ", %d"), arg); |
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411 } |
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412 st->print("}"); |
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413 } |
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414 } |
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415 break; |
| 0 | 416 default: |
| 417 ShouldNotReachHere(); | |
| 418 break; | |
| 419 } | |
| 420 st->cr(); | |
| 421 } | |
| 422 st->cr(); | |
| 423 } | |
| 424 | |
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425 void constantPoolKlass::oop_print_value_on(oop obj, outputStream* st) { |
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426 assert(obj->is_constantPool(), "must be constantPool"); |
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427 constantPoolOop cp = constantPoolOop(obj); |
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428 st->print("constant pool [%d]", cp->length()); |
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429 if (cp->has_pseudo_string()) st->print("/pseudo_string"); |
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430 if (cp->has_invokedynamic()) st->print("/invokedynamic"); |
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431 if (cp->operands() != NULL) st->print("/operands[%d]", cp->operands()->length()); |
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432 cp->print_address_on(st); |
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433 st->print(" for "); |
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434 cp->pool_holder()->print_value_on(st); |
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435 if (cp->cache() != NULL) { |
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436 st->print(" cache=" PTR_FORMAT, cp->cache()); |
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437 } |
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438 } |
| 0 | 439 |
| 440 const char* constantPoolKlass::internal_name() const { | |
| 441 return "{constant pool}"; | |
| 442 } | |
| 443 | |
| 444 // Verification | |
| 445 | |
| 446 void constantPoolKlass::oop_verify_on(oop obj, outputStream* st) { | |
| 447 Klass::oop_verify_on(obj, st); | |
| 448 guarantee(obj->is_constantPool(), "object must be constant pool"); | |
| 449 constantPoolOop cp = constantPoolOop(obj); | |
| 450 guarantee(cp->is_perm(), "should be in permspace"); | |
| 451 if (!cp->partially_loaded()) { | |
| 452 oop* base = (oop*)cp->base(); | |
| 453 for (int i = 0; i< cp->length(); i++) { | |
| 454 if (cp->tag_at(i).is_klass()) { | |
| 455 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 456 guarantee((*base)->is_klass(), "should be klass"); | |
| 457 } | |
| 458 if (cp->tag_at(i).is_unresolved_klass()) { | |
| 459 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 460 guarantee((*base)->is_symbol() || (*base)->is_klass(), | |
| 461 "should be symbol or klass"); | |
| 462 } | |
| 463 if (cp->tag_at(i).is_symbol()) { | |
| 464 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 465 guarantee((*base)->is_symbol(), "should be symbol"); | |
| 466 } | |
| 467 if (cp->tag_at(i).is_unresolved_string()) { | |
| 468 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 469 guarantee((*base)->is_symbol() || (*base)->is_instance(), | |
| 470 "should be symbol or instance"); | |
| 471 } | |
| 472 if (cp->tag_at(i).is_string()) { | |
|
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473 if (!cp->has_pseudo_string()) { |
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474 guarantee((*base)->is_perm(), "should be in permspace"); |
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475 guarantee((*base)->is_instance(), "should be instance"); |
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476 } else { |
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477 // can be non-perm, can be non-instance (array) |
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478 } |
| 0 | 479 } |
| 1602 | 480 // FIXME: verify JSR 292 tags JVM_CONSTANT_MethodHandle, etc. |
| 0 | 481 base++; |
| 482 } | |
| 483 guarantee(cp->tags()->is_perm(), "should be in permspace"); | |
| 484 guarantee(cp->tags()->is_typeArray(), "should be type array"); | |
| 485 if (cp->cache() != NULL) { | |
| 486 // Note: cache() can be NULL before a class is completely setup or | |
| 487 // in temporary constant pools used during constant pool merging | |
| 488 guarantee(cp->cache()->is_perm(), "should be in permspace"); | |
| 489 guarantee(cp->cache()->is_constantPoolCache(), "should be constant pool cache"); | |
| 490 } | |
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491 if (cp->operands() != NULL) { |
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492 guarantee(cp->operands()->is_perm(), "should be in permspace"); |
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493 guarantee(cp->operands()->is_typeArray(), "should be type array"); |
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494 } |
| 0 | 495 if (cp->pool_holder() != NULL) { |
| 496 // Note: pool_holder() can be NULL in temporary constant pools | |
| 497 // used during constant pool merging | |
| 498 guarantee(cp->pool_holder()->is_perm(), "should be in permspace"); | |
| 499 guarantee(cp->pool_holder()->is_klass(), "should be klass"); | |
| 500 } | |
| 501 } | |
| 502 } | |
| 503 | |
| 504 bool constantPoolKlass::oop_partially_loaded(oop obj) const { | |
| 505 assert(obj->is_constantPool(), "object must be constant pool"); | |
| 506 constantPoolOop cp = constantPoolOop(obj); | |
| 507 return cp->tags() == NULL || cp->pool_holder() == (klassOop) cp; // Check whether pool holder points to self | |
| 508 } | |
| 509 | |
| 510 | |
| 511 void constantPoolKlass::oop_set_partially_loaded(oop obj) { | |
| 512 assert(obj->is_constantPool(), "object must be constant pool"); | |
| 513 constantPoolOop cp = constantPoolOop(obj); | |
| 514 assert(cp->pool_holder() == NULL, "just checking"); | |
| 515 cp->set_pool_holder((klassOop) cp); // Temporarily set pool holder to point to self | |
| 516 } | |
| 517 | |
| 518 #ifndef PRODUCT | |
| 519 // CompileTheWorld support. Preload all classes loaded references in the passed in constantpool | |
| 520 void constantPoolKlass::preload_and_initialize_all_classes(oop obj, TRAPS) { | |
| 521 guarantee(obj->is_constantPool(), "object must be constant pool"); | |
| 522 constantPoolHandle cp(THREAD, (constantPoolOop)obj); | |
| 523 guarantee(!cp->partially_loaded(), "must be fully loaded"); | |
| 524 | |
| 525 for (int i = 0; i< cp->length(); i++) { | |
| 526 if (cp->tag_at(i).is_unresolved_klass()) { | |
| 527 // This will force loading of the class | |
| 528 klassOop klass = cp->klass_at(i, CHECK); | |
| 529 if (klass->is_instance()) { | |
| 530 // Force initialization of class | |
| 531 instanceKlass::cast(klass)->initialize(CHECK); | |
| 532 } | |
| 533 } | |
| 534 } | |
| 535 } | |
| 536 | |
| 537 #endif |