Mercurial > hg > graal-compiler
annotate src/share/vm/oops/constantPoolKlass.cpp @ 1913:3b2dea75431e
6984311: JSR 292 needs optional bootstrap method parameters
Summary: Allow CONSTANT_InvokeDynamic nodes to have any number of extra operands.
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Sat, 30 Oct 2010 13:08:23 -0700 |
| parents | 7fcd5f39bd7a |
| children | f95d63e2154a |
| 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 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_constantPoolKlass.cpp.incl" | |
| 27 | |
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28 constantPoolOop constantPoolKlass::allocate(int length, bool is_conc_safe, TRAPS) { |
| 0 | 29 int size = constantPoolOopDesc::object_size(length); |
| 30 KlassHandle klass (THREAD, as_klassOop()); | |
| 31 constantPoolOop c = | |
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32 (constantPoolOop)CollectedHeap::permanent_obj_allocate(klass, size, CHECK_NULL); |
| 0 | 33 |
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34 c->set_length(length); |
| 0 | 35 c->set_tags(NULL); |
| 36 c->set_cache(NULL); | |
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37 c->set_operands(NULL); |
| 0 | 38 c->set_pool_holder(NULL); |
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39 c->set_flags(0); |
| 0 | 40 // only set to non-zero if constant pool is merged by RedefineClasses |
| 41 c->set_orig_length(0); | |
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42 // if constant pool may change during RedefineClasses, it is created |
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43 // unsafe for GC concurrent processing. |
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44 c->set_is_conc_safe(is_conc_safe); |
| 0 | 45 // all fields are initialized; needed for GC |
| 46 | |
| 47 // initialize tag array | |
| 48 // Note: cannot introduce constant pool handle before since it is not | |
| 49 // completely initialized (no class) -> would cause assertion failure | |
| 50 constantPoolHandle pool (THREAD, c); | |
| 51 typeArrayOop t_oop = oopFactory::new_permanent_byteArray(length, CHECK_NULL); | |
| 52 typeArrayHandle tags (THREAD, t_oop); | |
| 53 for (int index = 0; index < length; index++) { | |
| 54 tags()->byte_at_put(index, JVM_CONSTANT_Invalid); | |
| 55 } | |
| 56 pool->set_tags(tags()); | |
| 57 | |
| 58 return pool(); | |
| 59 } | |
| 60 | |
| 61 klassOop constantPoolKlass::create_klass(TRAPS) { | |
| 62 constantPoolKlass o; | |
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63 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); |
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64 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); |
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65 // Make sure size calculation is right |
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66 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); |
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67 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror |
| 0 | 68 return k(); |
| 69 } | |
| 70 | |
| 71 int constantPoolKlass::oop_size(oop obj) const { | |
| 72 assert(obj->is_constantPool(), "must be constantPool"); | |
| 73 return constantPoolOop(obj)->object_size(); | |
| 74 } | |
| 75 | |
| 76 | |
| 77 void constantPoolKlass::oop_follow_contents(oop obj) { | |
| 78 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 79 constantPoolOop cp = (constantPoolOop) obj; | |
| 80 // Performance tweak: We skip iterating over the klass pointer since we | |
| 81 // know that Universe::constantPoolKlassObj never moves. | |
| 82 | |
| 83 // If the tags array is null we are in the middle of allocating this constant pool | |
| 84 if (cp->tags() != NULL) { | |
| 85 // gc of constant pool contents | |
| 86 oop* base = (oop*)cp->base(); | |
| 87 for (int i = 0; i < cp->length(); i++) { | |
| 88 if (cp->is_pointer_entry(i)) { | |
| 89 if (*base != NULL) MarkSweep::mark_and_push(base); | |
| 90 } | |
| 91 base++; | |
| 92 } | |
| 93 // gc of constant pool instance variables | |
| 94 MarkSweep::mark_and_push(cp->tags_addr()); | |
| 95 MarkSweep::mark_and_push(cp->cache_addr()); | |
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96 MarkSweep::mark_and_push(cp->operands_addr()); |
| 0 | 97 MarkSweep::mark_and_push(cp->pool_holder_addr()); |
| 98 } | |
| 99 } | |
| 100 | |
| 101 #ifndef SERIALGC | |
| 102 void constantPoolKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 103 oop obj) { | |
| 104 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 105 constantPoolOop cp = (constantPoolOop) obj; | |
| 106 // Performance tweak: We skip iterating over the klass pointer since we | |
| 107 // know that Universe::constantPoolKlassObj never moves. | |
| 108 | |
| 109 // If the tags array is null we are in the middle of allocating this constant | |
| 110 // 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) PSParallelCompact::mark_and_push(cm, base); | |
| 117 } | |
| 118 base++; | |
| 119 } | |
| 120 // gc of constant pool instance variables | |
| 121 PSParallelCompact::mark_and_push(cm, cp->tags_addr()); | |
| 122 PSParallelCompact::mark_and_push(cm, cp->cache_addr()); | |
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123 PSParallelCompact::mark_and_push(cm, cp->operands_addr()); |
| 0 | 124 PSParallelCompact::mark_and_push(cm, cp->pool_holder_addr()); |
| 125 } | |
| 126 } | |
| 127 #endif // SERIALGC | |
| 128 | |
| 129 | |
| 130 int constantPoolKlass::oop_adjust_pointers(oop obj) { | |
| 131 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 132 constantPoolOop cp = (constantPoolOop) obj; | |
| 133 // Get size before changing pointers. | |
| 134 // Don't call size() or oop_size() since that is a virtual call. | |
| 135 int size = cp->object_size(); | |
| 136 // Performance tweak: We skip iterating over the klass pointer since we | |
| 137 // know that Universe::constantPoolKlassObj never moves. | |
| 138 | |
| 139 // If the tags array is null we are in the middle of allocating this constant | |
| 140 // pool. | |
| 141 if (cp->tags() != NULL) { | |
| 142 oop* base = (oop*)cp->base(); | |
| 143 for (int i = 0; i< cp->length(); i++) { | |
| 144 if (cp->is_pointer_entry(i)) { | |
| 145 MarkSweep::adjust_pointer(base); | |
| 146 } | |
| 147 base++; | |
| 148 } | |
| 149 } | |
| 150 MarkSweep::adjust_pointer(cp->tags_addr()); | |
| 151 MarkSweep::adjust_pointer(cp->cache_addr()); | |
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152 MarkSweep::adjust_pointer(cp->operands_addr()); |
| 0 | 153 MarkSweep::adjust_pointer(cp->pool_holder_addr()); |
| 154 return size; | |
| 155 } | |
| 156 | |
| 157 | |
| 158 int constantPoolKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 159 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 160 // Performance tweak: We skip iterating over the klass pointer since we | |
| 161 // know that Universe::constantPoolKlassObj never moves. | |
| 162 constantPoolOop cp = (constantPoolOop) obj; | |
| 163 // Get size before changing pointers. | |
| 164 // Don't call size() or oop_size() since that is a virtual call. | |
| 165 int size = cp->object_size(); | |
| 166 | |
| 167 // If the tags array is null we are in the middle of allocating this constant | |
| 168 // pool. | |
| 169 if (cp->tags() != NULL) { | |
| 170 oop* base = (oop*)cp->base(); | |
| 171 for (int i = 0; i < cp->length(); i++) { | |
| 172 if (cp->is_pointer_entry(i)) { | |
| 173 blk->do_oop(base); | |
| 174 } | |
| 175 base++; | |
| 176 } | |
| 177 } | |
| 178 blk->do_oop(cp->tags_addr()); | |
| 179 blk->do_oop(cp->cache_addr()); | |
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180 blk->do_oop(cp->operands_addr()); |
| 0 | 181 blk->do_oop(cp->pool_holder_addr()); |
| 182 return size; | |
| 183 } | |
| 184 | |
| 185 | |
| 186 int constantPoolKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
| 187 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 188 // Performance tweak: We skip iterating over the klass pointer since we | |
| 189 // know that Universe::constantPoolKlassObj never moves. | |
| 190 constantPoolOop cp = (constantPoolOop) obj; | |
| 191 // Get size before changing pointers. | |
| 192 // Don't call size() or oop_size() since that is a virtual call. | |
| 193 int size = cp->object_size(); | |
| 194 | |
| 195 // If the tags array is null we are in the middle of allocating this constant | |
| 196 // pool. | |
| 197 if (cp->tags() != NULL) { | |
| 198 oop* base = (oop*)cp->base(); | |
| 199 for (int i = 0; i < cp->length(); i++) { | |
| 200 if (mr.contains(base)) { | |
| 201 if (cp->is_pointer_entry(i)) { | |
| 202 blk->do_oop(base); | |
| 203 } | |
| 204 } | |
| 205 base++; | |
| 206 } | |
| 207 } | |
| 208 oop* addr; | |
| 209 addr = cp->tags_addr(); | |
| 210 blk->do_oop(addr); | |
| 211 addr = cp->cache_addr(); | |
| 212 blk->do_oop(addr); | |
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213 addr = cp->operands_addr(); |
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214 blk->do_oop(addr); |
| 0 | 215 addr = cp->pool_holder_addr(); |
| 216 blk->do_oop(addr); | |
| 217 return size; | |
| 218 } | |
| 219 | |
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220 bool constantPoolKlass::oop_is_conc_safe(oop obj) const { |
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221 assert(obj->is_constantPool(), "must be constantPool"); |
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222 return constantPoolOop(obj)->is_conc_safe(); |
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223 } |
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224 |
| 0 | 225 #ifndef SERIALGC |
| 226 int constantPoolKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 227 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 228 constantPoolOop cp = (constantPoolOop) obj; | |
| 229 | |
| 230 // If the tags array is null we are in the middle of allocating this constant | |
| 231 // pool. | |
| 232 if (cp->tags() != NULL) { | |
| 233 oop* base = (oop*)cp->base(); | |
| 234 for (int i = 0; i < cp->length(); ++i, ++base) { | |
| 235 if (cp->is_pointer_entry(i)) { | |
| 236 PSParallelCompact::adjust_pointer(base); | |
| 237 } | |
| 238 } | |
| 239 } | |
| 240 PSParallelCompact::adjust_pointer(cp->tags_addr()); | |
| 241 PSParallelCompact::adjust_pointer(cp->cache_addr()); | |
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242 PSParallelCompact::adjust_pointer(cp->operands_addr()); |
| 0 | 243 PSParallelCompact::adjust_pointer(cp->pool_holder_addr()); |
| 244 return cp->object_size(); | |
| 245 } | |
| 246 | |
| 247 int | |
| 248 constantPoolKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, | |
| 249 HeapWord* beg_addr, HeapWord* end_addr) { | |
| 250 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 251 constantPoolOop cp = (constantPoolOop) obj; | |
| 252 | |
| 253 // If the tags array is null we are in the middle of allocating this constant | |
| 254 // pool. | |
| 255 if (cp->tags() != NULL) { | |
| 256 oop* base = (oop*)cp->base(); | |
| 257 oop* const beg_oop = MAX2((oop*)beg_addr, base); | |
| 258 oop* const end_oop = MIN2((oop*)end_addr, base + cp->length()); | |
| 259 const size_t beg_idx = pointer_delta(beg_oop, base, sizeof(oop*)); | |
| 260 const size_t end_idx = pointer_delta(end_oop, base, sizeof(oop*)); | |
| 261 for (size_t cur_idx = beg_idx; cur_idx < end_idx; ++cur_idx, ++base) { | |
| 262 if (cp->is_pointer_entry(int(cur_idx))) { | |
| 263 PSParallelCompact::adjust_pointer(base); | |
| 264 } | |
| 265 } | |
| 266 } | |
| 267 | |
| 268 oop* p; | |
| 269 p = cp->tags_addr(); | |
| 270 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
| 271 p = cp->cache_addr(); | |
| 272 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
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273 p = cp->operands_addr(); |
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274 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); |
| 0 | 275 p = cp->pool_holder_addr(); |
| 276 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
| 277 | |
| 278 return cp->object_size(); | |
| 279 } | |
| 280 | |
| 281 void constantPoolKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
| 282 assert(obj->is_constantPool(), "should be constant pool"); | |
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283 constantPoolOop cp = (constantPoolOop) obj; |
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284 if (AnonymousClasses && cp->has_pseudo_string() && cp->tags() != NULL) { |
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285 oop* base = (oop*)cp->base(); |
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286 for (int i = 0; i < cp->length(); ++i, ++base) { |
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287 if (cp->tag_at(i).is_string()) { |
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288 if (PSScavenge::should_scavenge(base)) { |
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289 pm->claim_or_forward_depth(base); |
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290 } |
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291 } |
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292 } |
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293 } |
| 0 | 294 } |
| 295 #endif // SERIALGC | |
| 296 | |
| 297 // Printing | |
| 298 | |
| 299 void constantPoolKlass::oop_print_on(oop obj, outputStream* st) { | |
| 300 EXCEPTION_MARK; | |
| 301 oop anObj; | |
| 302 assert(obj->is_constantPool(), "must be constantPool"); | |
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303 Klass::oop_print_on(obj, st); |
| 0 | 304 constantPoolOop cp = constantPoolOop(obj); |
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305 if (cp->flags() != 0) { |
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306 st->print(" - flags: 0x%x", cp->flags()); |
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307 if (cp->has_pseudo_string()) st->print(" has_pseudo_string"); |
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308 if (cp->has_invokedynamic()) st->print(" has_invokedynamic"); |
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309 st->cr(); |
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310 } |
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311 st->print_cr(" - cache: " INTPTR_FORMAT, cp->cache()); |
| 0 | 312 |
| 313 for (int index = 1; index < cp->length(); index++) { // Index 0 is unused | |
| 314 st->print(" - %3d : ", index); | |
| 315 cp->tag_at(index).print_on(st); | |
| 316 st->print(" : "); | |
| 317 switch (cp->tag_at(index).value()) { | |
| 318 case JVM_CONSTANT_Class : | |
| 319 { anObj = cp->klass_at(index, CATCH); | |
| 320 anObj->print_value_on(st); | |
| 321 st->print(" {0x%lx}", (address)anObj); | |
| 322 } | |
| 323 break; | |
| 324 case JVM_CONSTANT_Fieldref : | |
| 325 case JVM_CONSTANT_Methodref : | |
| 326 case JVM_CONSTANT_InterfaceMethodref : | |
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327 st->print("klass_index=%d", cp->uncached_klass_ref_index_at(index)); |
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328 st->print(" name_and_type_index=%d", cp->uncached_name_and_type_ref_index_at(index)); |
| 0 | 329 break; |
| 330 case JVM_CONSTANT_UnresolvedString : | |
| 331 case JVM_CONSTANT_String : | |
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332 if (cp->is_pseudo_string_at(index)) { |
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333 anObj = cp->pseudo_string_at(index); |
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334 } else { |
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335 anObj = cp->string_at(index, CATCH); |
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336 } |
| 0 | 337 anObj->print_value_on(st); |
| 338 st->print(" {0x%lx}", (address)anObj); | |
| 339 break; | |
| 340 case JVM_CONSTANT_Integer : | |
| 341 st->print("%d", cp->int_at(index)); | |
| 342 break; | |
| 343 case JVM_CONSTANT_Float : | |
| 344 st->print("%f", cp->float_at(index)); | |
| 345 break; | |
| 346 case JVM_CONSTANT_Long : | |
| 347 st->print_jlong(cp->long_at(index)); | |
| 348 index++; // Skip entry following eigth-byte constant | |
| 349 break; | |
| 350 case JVM_CONSTANT_Double : | |
| 351 st->print("%lf", cp->double_at(index)); | |
| 352 index++; // Skip entry following eigth-byte constant | |
| 353 break; | |
| 354 case JVM_CONSTANT_NameAndType : | |
| 355 st->print("name_index=%d", cp->name_ref_index_at(index)); | |
| 356 st->print(" signature_index=%d", cp->signature_ref_index_at(index)); | |
| 357 break; | |
| 358 case JVM_CONSTANT_Utf8 : | |
| 359 cp->symbol_at(index)->print_value_on(st); | |
| 360 break; | |
| 361 case JVM_CONSTANT_UnresolvedClass : // fall-through | |
| 362 case JVM_CONSTANT_UnresolvedClassInError: { | |
| 363 // unresolved_klass_at requires lock or safe world. | |
| 364 oop entry = *cp->obj_at_addr(index); | |
| 365 entry->print_value_on(st); | |
| 366 } | |
| 367 break; | |
| 1602 | 368 case JVM_CONSTANT_MethodHandle : |
| 369 st->print("ref_kind=%d", cp->method_handle_ref_kind_at(index)); | |
| 370 st->print(" ref_index=%d", cp->method_handle_index_at(index)); | |
| 371 break; | |
| 372 case JVM_CONSTANT_MethodType : | |
| 373 st->print("signature_index=%d", cp->method_type_index_at(index)); | |
| 374 break; | |
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375 case JVM_CONSTANT_InvokeDynamic : |
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376 { |
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377 st->print("bootstrap_method_index=%d", cp->invoke_dynamic_bootstrap_method_ref_index_at(index)); |
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378 st->print(" name_and_type_index=%d", cp->invoke_dynamic_name_and_type_ref_index_at(index)); |
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379 int argc = cp->invoke_dynamic_argument_count_at(index); |
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380 if (argc > 0) { |
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381 for (int arg_i = 0; arg_i < argc; arg_i++) { |
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382 int arg = cp->invoke_dynamic_argument_index_at(index, arg_i); |
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383 st->print((arg_i == 0 ? " arguments={%d" : ", %d"), arg); |
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384 } |
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385 st->print("}"); |
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386 } |
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387 } |
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388 break; |
| 0 | 389 default: |
| 390 ShouldNotReachHere(); | |
| 391 break; | |
| 392 } | |
| 393 st->cr(); | |
| 394 } | |
| 395 st->cr(); | |
| 396 } | |
| 397 | |
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398 void constantPoolKlass::oop_print_value_on(oop obj, outputStream* st) { |
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399 assert(obj->is_constantPool(), "must be constantPool"); |
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400 constantPoolOop cp = constantPoolOop(obj); |
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401 st->print("constant pool [%d]", cp->length()); |
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402 if (cp->has_pseudo_string()) st->print("/pseudo_string"); |
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403 if (cp->has_invokedynamic()) st->print("/invokedynamic"); |
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404 if (cp->operands() != NULL) st->print("/operands[%d]", cp->operands()->length()); |
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405 cp->print_address_on(st); |
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406 st->print(" for "); |
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407 cp->pool_holder()->print_value_on(st); |
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408 if (cp->cache() != NULL) { |
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409 st->print(" cache=" PTR_FORMAT, cp->cache()); |
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410 } |
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411 } |
| 0 | 412 |
| 413 const char* constantPoolKlass::internal_name() const { | |
| 414 return "{constant pool}"; | |
| 415 } | |
| 416 | |
| 417 // Verification | |
| 418 | |
| 419 void constantPoolKlass::oop_verify_on(oop obj, outputStream* st) { | |
| 420 Klass::oop_verify_on(obj, st); | |
| 421 guarantee(obj->is_constantPool(), "object must be constant pool"); | |
| 422 constantPoolOop cp = constantPoolOop(obj); | |
| 423 guarantee(cp->is_perm(), "should be in permspace"); | |
| 424 if (!cp->partially_loaded()) { | |
| 425 oop* base = (oop*)cp->base(); | |
| 426 for (int i = 0; i< cp->length(); i++) { | |
| 427 if (cp->tag_at(i).is_klass()) { | |
| 428 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 429 guarantee((*base)->is_klass(), "should be klass"); | |
| 430 } | |
| 431 if (cp->tag_at(i).is_unresolved_klass()) { | |
| 432 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 433 guarantee((*base)->is_symbol() || (*base)->is_klass(), | |
| 434 "should be symbol or klass"); | |
| 435 } | |
| 436 if (cp->tag_at(i).is_symbol()) { | |
| 437 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 438 guarantee((*base)->is_symbol(), "should be symbol"); | |
| 439 } | |
| 440 if (cp->tag_at(i).is_unresolved_string()) { | |
| 441 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 442 guarantee((*base)->is_symbol() || (*base)->is_instance(), | |
| 443 "should be symbol or instance"); | |
| 444 } | |
| 445 if (cp->tag_at(i).is_string()) { | |
|
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446 if (!cp->has_pseudo_string()) { |
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447 guarantee((*base)->is_perm(), "should be in permspace"); |
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448 guarantee((*base)->is_instance(), "should be instance"); |
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449 } else { |
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450 // can be non-perm, can be non-instance (array) |
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451 } |
| 0 | 452 } |
| 1602 | 453 // FIXME: verify JSR 292 tags JVM_CONSTANT_MethodHandle, etc. |
| 0 | 454 base++; |
| 455 } | |
| 456 guarantee(cp->tags()->is_perm(), "should be in permspace"); | |
| 457 guarantee(cp->tags()->is_typeArray(), "should be type array"); | |
| 458 if (cp->cache() != NULL) { | |
| 459 // Note: cache() can be NULL before a class is completely setup or | |
| 460 // in temporary constant pools used during constant pool merging | |
| 461 guarantee(cp->cache()->is_perm(), "should be in permspace"); | |
| 462 guarantee(cp->cache()->is_constantPoolCache(), "should be constant pool cache"); | |
| 463 } | |
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464 if (cp->operands() != NULL) { |
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465 guarantee(cp->operands()->is_perm(), "should be in permspace"); |
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466 guarantee(cp->operands()->is_typeArray(), "should be type array"); |
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467 } |
| 0 | 468 if (cp->pool_holder() != NULL) { |
| 469 // Note: pool_holder() can be NULL in temporary constant pools | |
| 470 // used during constant pool merging | |
| 471 guarantee(cp->pool_holder()->is_perm(), "should be in permspace"); | |
| 472 guarantee(cp->pool_holder()->is_klass(), "should be klass"); | |
| 473 } | |
| 474 } | |
| 475 } | |
| 476 | |
| 477 bool constantPoolKlass::oop_partially_loaded(oop obj) const { | |
| 478 assert(obj->is_constantPool(), "object must be constant pool"); | |
| 479 constantPoolOop cp = constantPoolOop(obj); | |
| 480 return cp->tags() == NULL || cp->pool_holder() == (klassOop) cp; // Check whether pool holder points to self | |
| 481 } | |
| 482 | |
| 483 | |
| 484 void constantPoolKlass::oop_set_partially_loaded(oop obj) { | |
| 485 assert(obj->is_constantPool(), "object must be constant pool"); | |
| 486 constantPoolOop cp = constantPoolOop(obj); | |
| 487 assert(cp->pool_holder() == NULL, "just checking"); | |
| 488 cp->set_pool_holder((klassOop) cp); // Temporarily set pool holder to point to self | |
| 489 } | |
| 490 | |
| 491 #ifndef PRODUCT | |
| 492 // CompileTheWorld support. Preload all classes loaded references in the passed in constantpool | |
| 493 void constantPoolKlass::preload_and_initialize_all_classes(oop obj, TRAPS) { | |
| 494 guarantee(obj->is_constantPool(), "object must be constant pool"); | |
| 495 constantPoolHandle cp(THREAD, (constantPoolOop)obj); | |
| 496 guarantee(!cp->partially_loaded(), "must be fully loaded"); | |
| 497 | |
| 498 for (int i = 0; i< cp->length(); i++) { | |
| 499 if (cp->tag_at(i).is_unresolved_klass()) { | |
| 500 // This will force loading of the class | |
| 501 klassOop klass = cp->klass_at(i, CHECK); | |
| 502 if (klass->is_instance()) { | |
| 503 // Force initialization of class | |
| 504 instanceKlass::cast(klass)->initialize(CHECK); | |
| 505 } | |
| 506 } | |
| 507 } | |
| 508 } | |
| 509 | |
| 510 #endif |