Mercurial > hg > truffle
annotate src/share/vm/oops/cpCacheKlass.cpp @ 2376:c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
Reviewed-by: kvn, coleenp, twisti, stefank
| author | never |
|---|---|
| date | Fri, 18 Mar 2011 16:00:34 -0700 |
| parents | e5383553fd4e |
| children | baf763f388e6 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2227 | 2 * Copyright (c) 1998, 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/javaClasses.hpp" | |
| 27 #include "gc_implementation/shared/markSweep.inline.hpp" | |
| 28 #include "gc_interface/collectedHeap.hpp" | |
| 29 #include "interpreter/bytecodes.hpp" | |
| 30 #include "memory/genOopClosures.inline.hpp" | |
| 31 #include "memory/permGen.hpp" | |
| 32 #include "oops/constantPoolOop.hpp" | |
| 33 #include "oops/cpCacheKlass.hpp" | |
| 34 #include "oops/oop.inline.hpp" | |
| 35 #include "runtime/handles.inline.hpp" | |
| 36 #ifndef SERIALGC | |
| 37 #include "gc_implementation/parNew/parOopClosures.inline.hpp" | |
| 38 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" | |
| 39 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
| 40 #include "memory/cardTableRS.hpp" | |
| 41 #include "oops/oop.pcgc.inline.hpp" | |
| 42 #endif | |
| 0 | 43 |
| 44 | |
| 45 int constantPoolCacheKlass::oop_size(oop obj) const { | |
| 46 assert(obj->is_constantPoolCache(), "must be constantPool"); | |
| 47 return constantPoolCacheOop(obj)->object_size(); | |
| 48 } | |
| 49 | |
| 50 | |
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51 constantPoolCacheOop constantPoolCacheKlass::allocate(int length, |
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52 TRAPS) { |
| 0 | 53 // allocate memory |
| 54 int size = constantPoolCacheOopDesc::object_size(length); | |
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55 |
| 0 | 56 KlassHandle klass (THREAD, as_klassOop()); |
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57 |
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58 // Commented out below is the original code. The code from |
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59 // permanent_obj_allocate() was in-lined so that we could |
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60 // set the _length field, necessary to correctly compute its |
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61 // size(), before setting its klass word further below. |
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62 // constantPoolCacheOop cache = (constantPoolCacheOop) |
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63 // CollectedHeap::permanent_obj_allocate(klass, size, CHECK_NULL); |
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64 |
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65 oop obj = CollectedHeap::permanent_obj_allocate_no_klass_install(klass, size, CHECK_NULL); |
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66 NOT_PRODUCT(Universe::heap()->check_for_bad_heap_word_value((HeapWord*) obj, |
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67 size)); |
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68 constantPoolCacheOop cache = (constantPoolCacheOop) obj; |
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69 assert(!UseConcMarkSweepGC || obj->klass_or_null() == NULL, |
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70 "klass should be NULL here when using CMS"); |
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71 cache->set_length(length); // should become visible before klass is set below. |
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72 cache->set_constant_pool(NULL); |
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73 |
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74 OrderAccess::storestore(); |
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75 obj->set_klass(klass()); |
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76 assert(cache->size() == size, "Incorrect cache->size()"); |
| 0 | 77 return cache; |
| 78 } | |
| 79 | |
| 80 klassOop constantPoolCacheKlass::create_klass(TRAPS) { | |
| 81 constantPoolCacheKlass o; | |
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82 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); |
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83 KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL); |
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84 // Make sure size calculation is right |
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85 assert(k()->size() == align_object_size(header_size()), "wrong size for object"); |
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86 java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror |
| 0 | 87 return k(); |
| 88 } | |
| 89 | |
| 90 | |
| 91 void constantPoolCacheKlass::oop_follow_contents(oop obj) { | |
| 92 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 93 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 94 // Performance tweak: We skip iterating over the klass pointer since we | |
| 95 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 96 // gc of constant pool cache instance variables | |
| 97 MarkSweep::mark_and_push((oop*)cache->constant_pool_addr()); | |
| 98 // gc of constant pool cache entries | |
| 99 int i = cache->length(); | |
| 100 while (i-- > 0) cache->entry_at(i)->follow_contents(); | |
| 101 } | |
| 102 | |
| 103 #ifndef SERIALGC | |
| 104 void constantPoolCacheKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 105 oop obj) { | |
| 106 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 107 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 108 // Performance tweak: We skip iterating over the klass pointer since we | |
| 109 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 110 // gc of constant pool cache instance variables | |
| 111 PSParallelCompact::mark_and_push(cm, (oop*)cache->constant_pool_addr()); | |
| 112 // gc of constant pool cache entries | |
| 113 int i = cache->length(); | |
| 114 while (i-- > 0) cache->entry_at(i)->follow_contents(cm); | |
| 115 } | |
| 116 #endif // SERIALGC | |
| 117 | |
| 118 | |
| 119 int constantPoolCacheKlass::oop_oop_iterate(oop obj, OopClosure* blk) { | |
| 120 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 121 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 122 // Get size before changing pointers. | |
| 123 // Don't call size() or oop_size() since that is a virtual call. | |
| 124 int size = cache->object_size(); | |
| 125 // Performance tweak: We skip iterating over the klass pointer since we | |
| 126 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 127 // iteration over constant pool cache instance variables | |
| 128 blk->do_oop((oop*)cache->constant_pool_addr()); | |
| 129 // iteration over constant pool cache entries | |
| 130 for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->oop_iterate(blk); | |
| 131 return size; | |
| 132 } | |
| 133 | |
| 134 | |
| 135 int constantPoolCacheKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
| 136 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 137 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 138 // Get size before changing pointers. | |
| 139 // Don't call size() or oop_size() since that is a virtual call. | |
| 140 int size = cache->object_size(); | |
| 141 // Performance tweak: We skip iterating over the klass pointer since we | |
| 142 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 143 // iteration over constant pool cache instance variables | |
| 144 oop* addr = (oop*)cache->constant_pool_addr(); | |
| 145 if (mr.contains(addr)) blk->do_oop(addr); | |
| 146 // iteration over constant pool cache entries | |
| 147 for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->oop_iterate_m(blk, mr); | |
| 148 return size; | |
| 149 } | |
| 150 | |
| 151 int constantPoolCacheKlass::oop_adjust_pointers(oop obj) { | |
| 152 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 153 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 154 // Get size before changing pointers. | |
| 155 // Don't call size() or oop_size() since that is a virtual call. | |
| 156 int size = cache->object_size(); | |
| 157 // Performance tweak: We skip iterating over the klass pointer since we | |
| 158 // know that Universe::constantPoolCacheKlassObj never moves. | |
| 159 // Iteration over constant pool cache instance variables | |
| 160 MarkSweep::adjust_pointer((oop*)cache->constant_pool_addr()); | |
| 161 // iteration over constant pool cache entries | |
| 162 for (int i = 0; i < cache->length(); i++) | |
| 163 cache->entry_at(i)->adjust_pointers(); | |
| 164 return size; | |
| 165 } | |
| 166 | |
| 167 #ifndef SERIALGC | |
| 168 void constantPoolCacheKlass::oop_push_contents(PSPromotionManager* pm, | |
| 169 oop obj) { | |
| 170 assert(obj->is_constantPoolCache(), "should be constant pool"); | |
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171 if (ScavengeRootsInCode) { |
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172 constantPoolCacheOop cache = (constantPoolCacheOop)obj; |
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173 // during a scavenge, it is safe to inspect my pool, since it is perm |
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174 constantPoolOop pool = cache->constant_pool(); |
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175 assert(pool->is_constantPool(), "should be constant pool"); |
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176 for (int i = 0; i < cache->length(); i++) { |
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177 ConstantPoolCacheEntry* e = cache->entry_at(i); |
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178 oop* p = (oop*)&e->_f1; |
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179 if (PSScavenge::should_scavenge(p)) |
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180 pm->claim_or_forward_depth(p); |
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181 assert(!(e->is_vfinal() && PSScavenge::should_scavenge((oop*)&e->_f2)), |
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182 "no live oops here"); |
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183 } |
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184 } |
| 0 | 185 } |
| 186 | |
| 187 int | |
| 188 constantPoolCacheKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 189 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 190 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 191 | |
| 192 // Iteration over constant pool cache instance variables | |
| 193 PSParallelCompact::adjust_pointer((oop*)cache->constant_pool_addr()); | |
| 194 | |
| 195 // iteration over constant pool cache entries | |
| 196 for (int i = 0; i < cache->length(); ++i) { | |
| 197 cache->entry_at(i)->update_pointers(); | |
| 198 } | |
| 199 | |
| 200 return cache->object_size(); | |
| 201 } | |
| 202 #endif // SERIALGC | |
| 203 | |
| 204 void constantPoolCacheKlass::oop_print_on(oop obj, outputStream* st) { | |
| 205 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 206 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 207 // super print | |
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208 Klass::oop_print_on(obj, st); |
| 0 | 209 // print constant pool cache entries |
| 210 for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->print(st, i); | |
| 211 } | |
| 212 | |
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213 void constantPoolCacheKlass::oop_print_value_on(oop obj, outputStream* st) { |
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214 assert(obj->is_constantPoolCache(), "obj must be constant pool cache"); |
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215 constantPoolCacheOop cache = (constantPoolCacheOop)obj; |
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216 st->print("cache [%d]", cache->length()); |
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217 cache->print_address_on(st); |
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218 st->print(" for "); |
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219 cache->constant_pool()->print_value_on(st); |
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220 } |
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221 |
| 0 | 222 void constantPoolCacheKlass::oop_verify_on(oop obj, outputStream* st) { |
| 223 guarantee(obj->is_constantPoolCache(), "obj must be constant pool cache"); | |
| 224 constantPoolCacheOop cache = (constantPoolCacheOop)obj; | |
| 225 // super verify | |
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226 Klass::oop_verify_on(obj, st); |
| 0 | 227 // print constant pool cache entries |
| 228 for (int i = 0; i < cache->length(); i++) cache->entry_at(i)->verify(st); | |
| 229 } | |
| 230 | |
| 231 | |
| 232 const char* constantPoolCacheKlass::internal_name() const { | |
| 233 return "{constant pool cache}"; | |
| 234 } |