Mon, 25 Jun 2012 21:33:35 -0400
7178670: runtime/7158800/BadUtf8.java fails in SymbolTable::rehash_table
Summary: Cannot delete _buckets and HashtableEntries in shared space (CDS)
Reviewed-by: acorn, kvn, dlong, dcubed, kamg
duke@435 | 1 | /* |
stefank@2534 | 2 | * Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. |
duke@435 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
duke@435 | 4 | * |
duke@435 | 5 | * This code is free software; you can redistribute it and/or modify it |
duke@435 | 6 | * under the terms of the GNU General Public License version 2 only, as |
duke@435 | 7 | * published by the Free Software Foundation. |
duke@435 | 8 | * |
duke@435 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
duke@435 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
duke@435 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
duke@435 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
duke@435 | 13 | * accompanied this code). |
duke@435 | 14 | * |
duke@435 | 15 | * You should have received a copy of the GNU General Public License version |
duke@435 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
duke@435 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
duke@435 | 18 | * |
trims@1907 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
trims@1907 | 20 | * or visit www.oracle.com if you need additional information or have any |
trims@1907 | 21 | * questions. |
duke@435 | 22 | * |
duke@435 | 23 | */ |
duke@435 | 24 | |
stefank@2314 | 25 | #include "precompiled.hpp" |
stefank@2314 | 26 | #include "gc_implementation/shared/markSweep.inline.hpp" |
stefank@2314 | 27 | #include "gc_interface/collectedHeap.inline.hpp" |
stefank@2314 | 28 | #include "memory/gcLocker.hpp" |
stefank@2314 | 29 | #include "memory/resourceArea.hpp" |
stefank@2314 | 30 | #include "memory/universe.inline.hpp" |
stefank@2314 | 31 | #include "oops/klassOop.hpp" |
stefank@2314 | 32 | #include "oops/methodDataKlass.hpp" |
stefank@2314 | 33 | #include "oops/methodDataOop.hpp" |
stefank@2314 | 34 | #include "oops/oop.inline.hpp" |
stefank@2314 | 35 | #include "oops/oop.inline2.hpp" |
stefank@2314 | 36 | #include "runtime/handles.inline.hpp" |
stefank@2314 | 37 | #ifndef SERIALGC |
stefank@2314 | 38 | #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" |
stefank@2314 | 39 | #include "oops/oop.pcgc.inline.hpp" |
stefank@2314 | 40 | #endif |
duke@435 | 41 | |
duke@435 | 42 | klassOop methodDataKlass::create_klass(TRAPS) { |
duke@435 | 43 | methodDataKlass o; |
duke@435 | 44 | KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); |
duke@435 | 45 | KlassHandle k = base_create_klass(h_this_klass, header_size(), |
duke@435 | 46 | o.vtbl_value(), CHECK_NULL); |
duke@435 | 47 | // Make sure size calculation is right |
duke@435 | 48 | assert(k()->size() == align_object_size(header_size()), |
duke@435 | 49 | "wrong size for object"); |
duke@435 | 50 | return k(); |
duke@435 | 51 | } |
duke@435 | 52 | |
duke@435 | 53 | |
duke@435 | 54 | int methodDataKlass::oop_size(oop obj) const { |
duke@435 | 55 | assert(obj->is_methodData(), "must be method data oop"); |
duke@435 | 56 | return methodDataOop(obj)->object_size(); |
duke@435 | 57 | } |
duke@435 | 58 | |
duke@435 | 59 | |
duke@435 | 60 | bool methodDataKlass::oop_is_parsable(oop obj) const { |
duke@435 | 61 | assert(obj->is_methodData(), "must be method data oop"); |
duke@435 | 62 | return methodDataOop(obj)->object_is_parsable(); |
duke@435 | 63 | } |
duke@435 | 64 | |
duke@435 | 65 | |
duke@435 | 66 | methodDataOop methodDataKlass::allocate(methodHandle method, TRAPS) { |
duke@435 | 67 | int size = methodDataOopDesc::compute_allocation_size_in_words(method); |
duke@435 | 68 | KlassHandle h_k(THREAD, as_klassOop()); |
duke@435 | 69 | methodDataOop mdo = |
duke@435 | 70 | (methodDataOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); |
duke@435 | 71 | assert(!mdo->is_parsable(), "not expecting parsability yet."); |
duke@435 | 72 | No_Safepoint_Verifier no_safepoint; // init function atomic wrt GC |
duke@435 | 73 | mdo->initialize(method); |
duke@435 | 74 | |
duke@435 | 75 | assert(mdo->is_parsable(), "should be parsable here."); |
duke@435 | 76 | assert(size == mdo->object_size(), "wrong size for methodDataOop"); |
duke@435 | 77 | return mdo; |
duke@435 | 78 | } |
duke@435 | 79 | |
duke@435 | 80 | |
duke@435 | 81 | void methodDataKlass::oop_follow_contents(oop obj) { |
duke@435 | 82 | assert (obj->is_methodData(), "object must be method data"); |
duke@435 | 83 | methodDataOop m = methodDataOop(obj); |
duke@435 | 84 | |
duke@435 | 85 | obj->follow_header(); |
duke@435 | 86 | MarkSweep::mark_and_push(m->adr_method()); |
duke@435 | 87 | ResourceMark rm; |
duke@435 | 88 | for (ProfileData* data = m->first_data(); |
duke@435 | 89 | m->is_valid(data); |
duke@435 | 90 | data = m->next_data(data)) { |
duke@435 | 91 | data->follow_contents(); |
duke@435 | 92 | } |
duke@435 | 93 | } |
duke@435 | 94 | |
duke@435 | 95 | #ifndef SERIALGC |
duke@435 | 96 | void methodDataKlass::oop_follow_contents(ParCompactionManager* cm, |
duke@435 | 97 | oop obj) { |
duke@435 | 98 | assert (obj->is_methodData(), "object must be method data"); |
duke@435 | 99 | methodDataOop m = methodDataOop(obj); |
duke@435 | 100 | |
duke@435 | 101 | obj->follow_header(cm); |
duke@435 | 102 | PSParallelCompact::mark_and_push(cm, m->adr_method()); |
duke@435 | 103 | ResourceMark rm; |
duke@435 | 104 | for (ProfileData* data = m->first_data(); |
duke@435 | 105 | m->is_valid(data); |
duke@435 | 106 | data = m->next_data(data)) { |
duke@435 | 107 | data->follow_contents(cm); |
duke@435 | 108 | } |
duke@435 | 109 | } |
duke@435 | 110 | #endif // SERIALGC |
duke@435 | 111 | |
coleenp@548 | 112 | |
duke@435 | 113 | int methodDataKlass::oop_oop_iterate(oop obj, OopClosure* blk) { |
duke@435 | 114 | assert (obj->is_methodData(), "object must be method data"); |
duke@435 | 115 | methodDataOop m = methodDataOop(obj); |
duke@435 | 116 | // Get size before changing pointers |
duke@435 | 117 | // Don't call size() or oop_size() since that is a virtual call. |
duke@435 | 118 | int size = m->object_size(); |
duke@435 | 119 | |
duke@435 | 120 | obj->oop_iterate_header(blk); |
duke@435 | 121 | blk->do_oop(m->adr_method()); |
duke@435 | 122 | ResourceMark rm; |
duke@435 | 123 | for (ProfileData* data = m->first_data(); |
duke@435 | 124 | m->is_valid(data); |
duke@435 | 125 | data = m->next_data(data)) { |
duke@435 | 126 | data->oop_iterate(blk); |
duke@435 | 127 | } |
duke@435 | 128 | return size; |
duke@435 | 129 | } |
duke@435 | 130 | |
duke@435 | 131 | int methodDataKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { |
duke@435 | 132 | assert (obj->is_methodData(), "object must be method data"); |
duke@435 | 133 | methodDataOop m = methodDataOop(obj); |
duke@435 | 134 | // Get size before changing pointers |
duke@435 | 135 | // Don't call size() or oop_size() since that is a virtual call. |
duke@435 | 136 | int size = m->object_size(); |
duke@435 | 137 | |
duke@435 | 138 | obj->oop_iterate_header(blk, mr); |
duke@435 | 139 | oop* adr = m->adr_method(); |
duke@435 | 140 | if (mr.contains(adr)) { |
duke@435 | 141 | blk->do_oop(m->adr_method()); |
duke@435 | 142 | } |
duke@435 | 143 | ResourceMark rm; |
duke@435 | 144 | for (ProfileData* data = m->first_data(); |
duke@435 | 145 | m->is_valid(data); |
duke@435 | 146 | data = m->next_data(data)) { |
duke@435 | 147 | data->oop_iterate_m(blk, mr); |
duke@435 | 148 | } |
duke@435 | 149 | return size; |
duke@435 | 150 | } |
duke@435 | 151 | |
duke@435 | 152 | int methodDataKlass::oop_adjust_pointers(oop obj) { |
duke@435 | 153 | assert(obj->is_methodData(), "should be method data"); |
duke@435 | 154 | methodDataOop m = methodDataOop(obj); |
duke@435 | 155 | // Get size before changing pointers |
duke@435 | 156 | // Don't call size() or oop_size() since that is a virtual call. |
duke@435 | 157 | int size = m->object_size(); |
duke@435 | 158 | |
duke@435 | 159 | obj->adjust_header(); |
duke@435 | 160 | MarkSweep::adjust_pointer(m->adr_method()); |
duke@435 | 161 | ResourceMark rm; |
duke@435 | 162 | ProfileData* data; |
duke@435 | 163 | for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { |
duke@435 | 164 | data->adjust_pointers(); |
duke@435 | 165 | } |
duke@435 | 166 | return size; |
duke@435 | 167 | } |
duke@435 | 168 | |
duke@435 | 169 | |
duke@435 | 170 | #ifndef SERIALGC |
duke@435 | 171 | void methodDataKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { |
duke@435 | 172 | assert (obj->is_methodData(), "object must be method data"); |
duke@435 | 173 | methodDataOop m = methodDataOop(obj); |
duke@435 | 174 | // This should never point into the young gen. |
coleenp@548 | 175 | assert(!PSScavenge::should_scavenge(m->adr_method()), "Sanity"); |
duke@435 | 176 | } |
duke@435 | 177 | |
duke@435 | 178 | int methodDataKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { |
duke@435 | 179 | assert(obj->is_methodData(), "should be method data"); |
duke@435 | 180 | methodDataOop m = methodDataOop(obj); |
duke@435 | 181 | |
duke@435 | 182 | PSParallelCompact::adjust_pointer(m->adr_method()); |
duke@435 | 183 | |
duke@435 | 184 | ResourceMark rm; |
duke@435 | 185 | ProfileData* data; |
duke@435 | 186 | for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { |
duke@435 | 187 | data->update_pointers(); |
duke@435 | 188 | } |
duke@435 | 189 | return m->object_size(); |
duke@435 | 190 | } |
duke@435 | 191 | #endif // SERIALGC |
duke@435 | 192 | |
duke@435 | 193 | #ifndef PRODUCT |
duke@435 | 194 | |
duke@435 | 195 | // Printing |
duke@435 | 196 | void methodDataKlass::oop_print_on(oop obj, outputStream* st) { |
duke@435 | 197 | assert(obj->is_methodData(), "should be method data"); |
duke@435 | 198 | methodDataOop m = methodDataOop(obj); |
duke@435 | 199 | st->print("method data for "); |
duke@435 | 200 | m->method()->print_value_on(st); |
duke@435 | 201 | st->cr(); |
duke@435 | 202 | m->print_data_on(st); |
duke@435 | 203 | } |
duke@435 | 204 | |
jrose@1590 | 205 | #endif //PRODUCT |
jrose@1590 | 206 | |
duke@435 | 207 | void methodDataKlass::oop_print_value_on(oop obj, outputStream* st) { |
duke@435 | 208 | assert(obj->is_methodData(), "should be method data"); |
duke@435 | 209 | methodDataOop m = methodDataOop(obj); |
duke@435 | 210 | st->print("method data for "); |
duke@435 | 211 | m->method()->print_value_on(st); |
duke@435 | 212 | } |
duke@435 | 213 | |
duke@435 | 214 | const char* methodDataKlass::internal_name() const { |
duke@435 | 215 | return "{method data}"; |
duke@435 | 216 | } |
duke@435 | 217 | |
duke@435 | 218 | |
duke@435 | 219 | // Verification |
duke@435 | 220 | void methodDataKlass::oop_verify_on(oop obj, outputStream* st) { |
duke@435 | 221 | Klass::oop_verify_on(obj, st); |
duke@435 | 222 | guarantee(obj->is_methodData(), "object must be method data"); |
duke@435 | 223 | methodDataOop m = methodDataOop(obj); |
duke@435 | 224 | guarantee(m->is_perm(), "should be in permspace"); |
duke@435 | 225 | m->verify_data_on(st); |
duke@435 | 226 | } |