Mercurial > hg > truffle
annotate src/share/vm/oops/constantPoolKlass.cpp @ 1660:083fde3b838e
6964498: JSR 292 invokedynamic sites need local bootstrap methods
Summary: Add JVM_CONSTANT_InvokeDynamic records to constant pool to determine per-instruction BSMs.
Reviewed-by: twisti
| author | jrose |
|---|---|
| date | Thu, 15 Jul 2010 18:40:45 -0700 |
| parents | 136b78722a08 |
| children | 126ea7725993 9d7a8ab3736b |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2009, 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); | |
| 37 c->set_pool_holder(NULL); | |
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38 c->set_flags(0); |
| 0 | 39 // only set to non-zero if constant pool is merged by RedefineClasses |
| 40 c->set_orig_length(0); | |
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41 // if constant pool may change during RedefineClasses, it is created |
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42 // unsafe for GC concurrent processing. |
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43 c->set_is_conc_safe(is_conc_safe); |
| 0 | 44 // all fields are initialized; needed for GC |
| 45 | |
| 46 // initialize tag array | |
| 47 // Note: cannot introduce constant pool handle before since it is not | |
| 48 // completely initialized (no class) -> would cause assertion failure | |
| 49 constantPoolHandle pool (THREAD, c); | |
| 50 typeArrayOop t_oop = oopFactory::new_permanent_byteArray(length, CHECK_NULL); | |
| 51 typeArrayHandle tags (THREAD, t_oop); | |
| 52 for (int index = 0; index < length; index++) { | |
| 53 tags()->byte_at_put(index, JVM_CONSTANT_Invalid); | |
| 54 } | |
| 55 pool->set_tags(tags()); | |
| 56 | |
| 57 return pool(); | |
| 58 } | |
| 59 | |
| 60 klassOop constantPoolKlass::create_klass(TRAPS) { | |
| 61 constantPoolKlass o; | |
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62 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); |
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63 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); |
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64 // Make sure size calculation is right |
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65 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); |
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66 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror |
| 0 | 67 return k(); |
| 68 } | |
| 69 | |
| 70 int constantPoolKlass::oop_size(oop obj) const { | |
| 71 assert(obj->is_constantPool(), "must be constantPool"); | |
| 72 return constantPoolOop(obj)->object_size(); | |
| 73 } | |
| 74 | |
| 75 | |
| 76 void constantPoolKlass::oop_follow_contents(oop obj) { | |
| 77 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 78 constantPoolOop cp = (constantPoolOop) obj; | |
| 79 // Performance tweak: We skip iterating over the klass pointer since we | |
| 80 // know that Universe::constantPoolKlassObj never moves. | |
| 81 | |
| 82 // If the tags array is null we are in the middle of allocating this constant pool | |
| 83 if (cp->tags() != NULL) { | |
| 84 // gc of constant pool contents | |
| 85 oop* base = (oop*)cp->base(); | |
| 86 for (int i = 0; i < cp->length(); i++) { | |
| 87 if (cp->is_pointer_entry(i)) { | |
| 88 if (*base != NULL) MarkSweep::mark_and_push(base); | |
| 89 } | |
| 90 base++; | |
| 91 } | |
| 92 // gc of constant pool instance variables | |
| 93 MarkSweep::mark_and_push(cp->tags_addr()); | |
| 94 MarkSweep::mark_and_push(cp->cache_addr()); | |
| 95 MarkSweep::mark_and_push(cp->pool_holder_addr()); | |
| 96 } | |
| 97 } | |
| 98 | |
| 99 #ifndef SERIALGC | |
| 100 void constantPoolKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 101 oop obj) { | |
| 102 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 103 constantPoolOop cp = (constantPoolOop) obj; | |
| 104 // Performance tweak: We skip iterating over the klass pointer since we | |
| 105 // know that Universe::constantPoolKlassObj never moves. | |
| 106 | |
| 107 // If the tags array is null we are in the middle of allocating this constant | |
| 108 // pool. | |
| 109 if (cp->tags() != NULL) { | |
| 110 // gc of constant pool contents | |
| 111 oop* base = (oop*)cp->base(); | |
| 112 for (int i = 0; i < cp->length(); i++) { | |
| 113 if (cp->is_pointer_entry(i)) { | |
| 114 if (*base != NULL) PSParallelCompact::mark_and_push(cm, base); | |
| 115 } | |
| 116 base++; | |
| 117 } | |
| 118 // gc of constant pool instance variables | |
| 119 PSParallelCompact::mark_and_push(cm, cp->tags_addr()); | |
| 120 PSParallelCompact::mark_and_push(cm, cp->cache_addr()); | |
| 121 PSParallelCompact::mark_and_push(cm, cp->pool_holder_addr()); | |
| 122 } | |
| 123 } | |
| 124 #endif // SERIALGC | |
| 125 | |
| 126 | |
| 127 int constantPoolKlass::oop_adjust_pointers(oop obj) { | |
| 128 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 129 constantPoolOop cp = (constantPoolOop) obj; | |
| 130 // Get size before changing pointers. | |
| 131 // Don't call size() or oop_size() since that is a virtual call. | |
| 132 int size = cp->object_size(); | |
| 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 oop* base = (oop*)cp->base(); | |
| 140 for (int i = 0; i< cp->length(); i++) { | |
| 141 if (cp->is_pointer_entry(i)) { | |
| 142 MarkSweep::adjust_pointer(base); | |
| 143 } | |
| 144 base++; | |
| 145 } | |
| 146 } | |
| 147 MarkSweep::adjust_pointer(cp->tags_addr()); | |
| 148 MarkSweep::adjust_pointer(cp->cache_addr()); | |
| 149 MarkSweep::adjust_pointer(cp->pool_holder_addr()); | |
| 150 return size; | |
| 151 } | |
| 152 | |
| 153 | |
| 154 int constantPoolKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 155 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 156 // Performance tweak: We skip iterating over the klass pointer since we | |
| 157 // know that Universe::constantPoolKlassObj never moves. | |
| 158 constantPoolOop cp = (constantPoolOop) obj; | |
| 159 // Get size before changing pointers. | |
| 160 // Don't call size() or oop_size() since that is a virtual call. | |
| 161 int size = cp->object_size(); | |
| 162 | |
| 163 // If the tags array is null we are in the middle of allocating this constant | |
| 164 // pool. | |
| 165 if (cp->tags() != NULL) { | |
| 166 oop* base = (oop*)cp->base(); | |
| 167 for (int i = 0; i < cp->length(); i++) { | |
| 168 if (cp->is_pointer_entry(i)) { | |
| 169 blk->do_oop(base); | |
| 170 } | |
| 171 base++; | |
| 172 } | |
| 173 } | |
| 174 blk->do_oop(cp->tags_addr()); | |
| 175 blk->do_oop(cp->cache_addr()); | |
| 176 blk->do_oop(cp->pool_holder_addr()); | |
| 177 return size; | |
| 178 } | |
| 179 | |
| 180 | |
| 181 int constantPoolKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
| 182 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 183 // Performance tweak: We skip iterating over the klass pointer since we | |
| 184 // know that Universe::constantPoolKlassObj never moves. | |
| 185 constantPoolOop cp = (constantPoolOop) obj; | |
| 186 // Get size before changing pointers. | |
| 187 // Don't call size() or oop_size() since that is a virtual call. | |
| 188 int size = cp->object_size(); | |
| 189 | |
| 190 // If the tags array is null we are in the middle of allocating this constant | |
| 191 // pool. | |
| 192 if (cp->tags() != NULL) { | |
| 193 oop* base = (oop*)cp->base(); | |
| 194 for (int i = 0; i < cp->length(); i++) { | |
| 195 if (mr.contains(base)) { | |
| 196 if (cp->is_pointer_entry(i)) { | |
| 197 blk->do_oop(base); | |
| 198 } | |
| 199 } | |
| 200 base++; | |
| 201 } | |
| 202 } | |
| 203 oop* addr; | |
| 204 addr = cp->tags_addr(); | |
| 205 blk->do_oop(addr); | |
| 206 addr = cp->cache_addr(); | |
| 207 blk->do_oop(addr); | |
| 208 addr = cp->pool_holder_addr(); | |
| 209 blk->do_oop(addr); | |
| 210 return size; | |
| 211 } | |
| 212 | |
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213 bool constantPoolKlass::oop_is_conc_safe(oop obj) const { |
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214 assert(obj->is_constantPool(), "must be constantPool"); |
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215 return constantPoolOop(obj)->is_conc_safe(); |
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216 } |
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217 |
| 0 | 218 #ifndef SERIALGC |
| 219 int constantPoolKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 220 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 221 constantPoolOop cp = (constantPoolOop) obj; | |
| 222 | |
| 223 // If the tags array is null we are in the middle of allocating this constant | |
| 224 // pool. | |
| 225 if (cp->tags() != NULL) { | |
| 226 oop* base = (oop*)cp->base(); | |
| 227 for (int i = 0; i < cp->length(); ++i, ++base) { | |
| 228 if (cp->is_pointer_entry(i)) { | |
| 229 PSParallelCompact::adjust_pointer(base); | |
| 230 } | |
| 231 } | |
| 232 } | |
| 233 PSParallelCompact::adjust_pointer(cp->tags_addr()); | |
| 234 PSParallelCompact::adjust_pointer(cp->cache_addr()); | |
| 235 PSParallelCompact::adjust_pointer(cp->pool_holder_addr()); | |
| 236 return cp->object_size(); | |
| 237 } | |
| 238 | |
| 239 int | |
| 240 constantPoolKlass::oop_update_pointers(ParCompactionManager* cm, oop obj, | |
| 241 HeapWord* beg_addr, HeapWord* end_addr) { | |
| 242 assert (obj->is_constantPool(), "obj must be constant pool"); | |
| 243 constantPoolOop cp = (constantPoolOop) obj; | |
| 244 | |
| 245 // If the tags array is null we are in the middle of allocating this constant | |
| 246 // pool. | |
| 247 if (cp->tags() != NULL) { | |
| 248 oop* base = (oop*)cp->base(); | |
| 249 oop* const beg_oop = MAX2((oop*)beg_addr, base); | |
| 250 oop* const end_oop = MIN2((oop*)end_addr, base + cp->length()); | |
| 251 const size_t beg_idx = pointer_delta(beg_oop, base, sizeof(oop*)); | |
| 252 const size_t end_idx = pointer_delta(end_oop, base, sizeof(oop*)); | |
| 253 for (size_t cur_idx = beg_idx; cur_idx < end_idx; ++cur_idx, ++base) { | |
| 254 if (cp->is_pointer_entry(int(cur_idx))) { | |
| 255 PSParallelCompact::adjust_pointer(base); | |
| 256 } | |
| 257 } | |
| 258 } | |
| 259 | |
| 260 oop* p; | |
| 261 p = cp->tags_addr(); | |
| 262 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
| 263 p = cp->cache_addr(); | |
| 264 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
| 265 p = cp->pool_holder_addr(); | |
| 266 PSParallelCompact::adjust_pointer(p, beg_addr, end_addr); | |
| 267 | |
| 268 return cp->object_size(); | |
| 269 } | |
| 270 | |
| 271 void constantPoolKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) { | |
| 272 assert(obj->is_constantPool(), "should be constant pool"); | |
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273 constantPoolOop cp = (constantPoolOop) obj; |
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274 if (AnonymousClasses && cp->has_pseudo_string() && cp->tags() != NULL) { |
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275 oop* base = (oop*)cp->base(); |
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276 for (int i = 0; i < cp->length(); ++i, ++base) { |
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277 if (cp->tag_at(i).is_string()) { |
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278 if (PSScavenge::should_scavenge(base)) { |
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279 pm->claim_or_forward_breadth(base); |
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280 } |
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281 } |
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282 } |
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283 } |
| 0 | 284 } |
| 285 | |
| 286 void constantPoolKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
| 287 assert(obj->is_constantPool(), "should be constant pool"); | |
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288 constantPoolOop cp = (constantPoolOop) obj; |
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289 if (AnonymousClasses && cp->has_pseudo_string() && cp->tags() != NULL) { |
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290 oop* base = (oop*)cp->base(); |
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291 for (int i = 0; i < cp->length(); ++i, ++base) { |
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292 if (cp->tag_at(i).is_string()) { |
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293 if (PSScavenge::should_scavenge(base)) { |
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294 pm->claim_or_forward_depth(base); |
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295 } |
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296 } |
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297 } |
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298 } |
| 0 | 299 } |
| 300 #endif // SERIALGC | |
| 301 | |
| 302 #ifndef PRODUCT | |
| 303 | |
| 304 // Printing | |
| 305 | |
| 306 void constantPoolKlass::oop_print_on(oop obj, outputStream* st) { | |
| 307 EXCEPTION_MARK; | |
| 308 oop anObj; | |
| 309 assert(obj->is_constantPool(), "must be constantPool"); | |
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310 Klass::oop_print_on(obj, st); |
| 0 | 311 constantPoolOop cp = constantPoolOop(obj); |
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312 if (cp->flags() != 0) { |
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313 st->print(" - flags: 0x%x", cp->flags()); |
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314 if (cp->has_pseudo_string()) st->print(" has_pseudo_string"); |
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315 if (cp->has_invokedynamic()) st->print(" has_invokedynamic"); |
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316 st->cr(); |
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317 } |
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318 st->print_cr(" - cache: " INTPTR_FORMAT, cp->cache()); |
| 0 | 319 |
| 320 for (int index = 1; index < cp->length(); index++) { // Index 0 is unused | |
| 321 st->print(" - %3d : ", index); | |
| 322 cp->tag_at(index).print_on(st); | |
| 323 st->print(" : "); | |
| 324 switch (cp->tag_at(index).value()) { | |
| 325 case JVM_CONSTANT_Class : | |
| 326 { anObj = cp->klass_at(index, CATCH); | |
| 327 anObj->print_value_on(st); | |
| 328 st->print(" {0x%lx}", (address)anObj); | |
| 329 } | |
| 330 break; | |
| 331 case JVM_CONSTANT_Fieldref : | |
| 332 case JVM_CONSTANT_Methodref : | |
| 333 case JVM_CONSTANT_InterfaceMethodref : | |
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334 st->print("klass_index=%d", cp->uncached_klass_ref_index_at(index)); |
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335 st->print(" name_and_type_index=%d", cp->uncached_name_and_type_ref_index_at(index)); |
| 0 | 336 break; |
| 337 case JVM_CONSTANT_UnresolvedString : | |
| 338 case JVM_CONSTANT_String : | |
|
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339 if (cp->is_pseudo_string_at(index)) { |
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340 anObj = cp->pseudo_string_at(index); |
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341 } else { |
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342 anObj = cp->string_at(index, CATCH); |
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343 } |
| 0 | 344 anObj->print_value_on(st); |
| 345 st->print(" {0x%lx}", (address)anObj); | |
| 346 break; | |
| 347 case JVM_CONSTANT_Integer : | |
| 348 st->print("%d", cp->int_at(index)); | |
| 349 break; | |
| 350 case JVM_CONSTANT_Float : | |
| 351 st->print("%f", cp->float_at(index)); | |
| 352 break; | |
| 353 case JVM_CONSTANT_Long : | |
| 354 st->print_jlong(cp->long_at(index)); | |
| 355 index++; // Skip entry following eigth-byte constant | |
| 356 break; | |
| 357 case JVM_CONSTANT_Double : | |
| 358 st->print("%lf", cp->double_at(index)); | |
| 359 index++; // Skip entry following eigth-byte constant | |
| 360 break; | |
| 361 case JVM_CONSTANT_NameAndType : | |
| 362 st->print("name_index=%d", cp->name_ref_index_at(index)); | |
| 363 st->print(" signature_index=%d", cp->signature_ref_index_at(index)); | |
| 364 break; | |
| 365 case JVM_CONSTANT_Utf8 : | |
| 366 cp->symbol_at(index)->print_value_on(st); | |
| 367 break; | |
| 368 case JVM_CONSTANT_UnresolvedClass : // fall-through | |
| 369 case JVM_CONSTANT_UnresolvedClassInError: { | |
| 370 // unresolved_klass_at requires lock or safe world. | |
| 371 oop entry = *cp->obj_at_addr(index); | |
| 372 entry->print_value_on(st); | |
| 373 } | |
| 374 break; | |
| 1602 | 375 case JVM_CONSTANT_MethodHandle : |
| 376 st->print("ref_kind=%d", cp->method_handle_ref_kind_at(index)); | |
| 377 st->print(" ref_index=%d", cp->method_handle_index_at(index)); | |
| 378 break; | |
| 379 case JVM_CONSTANT_MethodType : | |
| 380 st->print("signature_index=%d", cp->method_type_index_at(index)); | |
| 381 break; | |
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382 case JVM_CONSTANT_InvokeDynamic : |
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383 st->print("bootstrap_method_index=%d", cp->invoke_dynamic_bootstrap_method_ref_index_at(index)); |
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384 st->print(" name_and_type_index=%d", cp->invoke_dynamic_name_and_type_ref_index_at(index)); |
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385 break; |
| 0 | 386 default: |
| 387 ShouldNotReachHere(); | |
| 388 break; | |
| 389 } | |
| 390 st->cr(); | |
| 391 } | |
| 392 st->cr(); | |
| 393 } | |
| 394 | |
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395 #endif |
| 0 | 396 |
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397 void constantPoolKlass::oop_print_value_on(oop obj, outputStream* st) { |
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398 assert(obj->is_constantPool(), "must be constantPool"); |
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399 constantPoolOop cp = constantPoolOop(obj); |
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400 st->print("constant pool [%d]", cp->length()); |
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401 if (cp->has_pseudo_string()) st->print("/pseudo_string"); |
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402 if (cp->has_invokedynamic()) st->print("/invokedynamic"); |
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403 cp->print_address_on(st); |
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404 st->print(" for "); |
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405 cp->pool_holder()->print_value_on(st); |
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406 if (cp->cache() != NULL) { |
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407 st->print(" cache=" PTR_FORMAT, cp->cache()); |
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408 } |
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409 } |
| 0 | 410 |
| 411 const char* constantPoolKlass::internal_name() const { | |
| 412 return "{constant pool}"; | |
| 413 } | |
| 414 | |
| 415 // Verification | |
| 416 | |
| 417 void constantPoolKlass::oop_verify_on(oop obj, outputStream* st) { | |
| 418 Klass::oop_verify_on(obj, st); | |
| 419 guarantee(obj->is_constantPool(), "object must be constant pool"); | |
| 420 constantPoolOop cp = constantPoolOop(obj); | |
| 421 guarantee(cp->is_perm(), "should be in permspace"); | |
| 422 if (!cp->partially_loaded()) { | |
| 423 oop* base = (oop*)cp->base(); | |
| 424 for (int i = 0; i< cp->length(); i++) { | |
| 425 if (cp->tag_at(i).is_klass()) { | |
| 426 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 427 guarantee((*base)->is_klass(), "should be klass"); | |
| 428 } | |
| 429 if (cp->tag_at(i).is_unresolved_klass()) { | |
| 430 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 431 guarantee((*base)->is_symbol() || (*base)->is_klass(), | |
| 432 "should be symbol or klass"); | |
| 433 } | |
| 434 if (cp->tag_at(i).is_symbol()) { | |
| 435 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 436 guarantee((*base)->is_symbol(), "should be symbol"); | |
| 437 } | |
| 438 if (cp->tag_at(i).is_unresolved_string()) { | |
| 439 guarantee((*base)->is_perm(), "should be in permspace"); | |
| 440 guarantee((*base)->is_symbol() || (*base)->is_instance(), | |
| 441 "should be symbol or instance"); | |
| 442 } | |
| 443 if (cp->tag_at(i).is_string()) { | |
|
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444 if (!cp->has_pseudo_string()) { |
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445 guarantee((*base)->is_perm(), "should be in permspace"); |
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446 guarantee((*base)->is_instance(), "should be instance"); |
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447 } else { |
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448 // can be non-perm, can be non-instance (array) |
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449 } |
| 0 | 450 } |
| 1602 | 451 // FIXME: verify JSR 292 tags JVM_CONSTANT_MethodHandle, etc. |
| 0 | 452 base++; |
| 453 } | |
| 454 guarantee(cp->tags()->is_perm(), "should be in permspace"); | |
| 455 guarantee(cp->tags()->is_typeArray(), "should be type array"); | |
| 456 if (cp->cache() != NULL) { | |
| 457 // Note: cache() can be NULL before a class is completely setup or | |
| 458 // in temporary constant pools used during constant pool merging | |
| 459 guarantee(cp->cache()->is_perm(), "should be in permspace"); | |
| 460 guarantee(cp->cache()->is_constantPoolCache(), "should be constant pool cache"); | |
| 461 } | |
| 462 if (cp->pool_holder() != NULL) { | |
| 463 // Note: pool_holder() can be NULL in temporary constant pools | |
| 464 // used during constant pool merging | |
| 465 guarantee(cp->pool_holder()->is_perm(), "should be in permspace"); | |
| 466 guarantee(cp->pool_holder()->is_klass(), "should be klass"); | |
| 467 } | |
| 468 } | |
| 469 } | |
| 470 | |
| 471 bool constantPoolKlass::oop_partially_loaded(oop obj) const { | |
| 472 assert(obj->is_constantPool(), "object must be constant pool"); | |
| 473 constantPoolOop cp = constantPoolOop(obj); | |
| 474 return cp->tags() == NULL || cp->pool_holder() == (klassOop) cp; // Check whether pool holder points to self | |
| 475 } | |
| 476 | |
| 477 | |
| 478 void constantPoolKlass::oop_set_partially_loaded(oop obj) { | |
| 479 assert(obj->is_constantPool(), "object must be constant pool"); | |
| 480 constantPoolOop cp = constantPoolOop(obj); | |
| 481 assert(cp->pool_holder() == NULL, "just checking"); | |
| 482 cp->set_pool_holder((klassOop) cp); // Temporarily set pool holder to point to self | |
| 483 } | |
| 484 | |
| 485 #ifndef PRODUCT | |
| 486 // CompileTheWorld support. Preload all classes loaded references in the passed in constantpool | |
| 487 void constantPoolKlass::preload_and_initialize_all_classes(oop obj, TRAPS) { | |
| 488 guarantee(obj->is_constantPool(), "object must be constant pool"); | |
| 489 constantPoolHandle cp(THREAD, (constantPoolOop)obj); | |
| 490 guarantee(!cp->partially_loaded(), "must be fully loaded"); | |
| 491 | |
| 492 for (int i = 0; i< cp->length(); i++) { | |
| 493 if (cp->tag_at(i).is_unresolved_klass()) { | |
| 494 // This will force loading of the class | |
| 495 klassOop klass = cp->klass_at(i, CHECK); | |
| 496 if (klass->is_instance()) { | |
| 497 // Force initialization of class | |
| 498 instanceKlass::cast(klass)->initialize(CHECK); | |
| 499 } | |
| 500 } | |
| 501 } | |
| 502 } | |
| 503 | |
| 504 #endif |