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annotate src/share/vm/oops/methodDataKlass.cpp @ 4439:f7251c729b31
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| author | Christian Haeubl <christian.haeubl@oracle.com> |
|---|---|
| date | Thu, 19 Jan 2012 16:29:35 -0800 |
| parents | e5383553fd4e |
| children | 59d3d0b80975 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2227 | 2 * Copyright (c) 2000, 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 "gc_implementation/shared/markSweep.inline.hpp" | |
| 27 #include "gc_interface/collectedHeap.inline.hpp" | |
| 28 #include "memory/gcLocker.hpp" | |
| 29 #include "memory/resourceArea.hpp" | |
| 30 #include "memory/universe.inline.hpp" | |
| 31 #include "oops/klassOop.hpp" | |
| 32 #include "oops/methodDataKlass.hpp" | |
| 33 #include "oops/methodDataOop.hpp" | |
| 34 #include "oops/oop.inline.hpp" | |
| 35 #include "oops/oop.inline2.hpp" | |
| 36 #include "runtime/handles.inline.hpp" | |
| 37 #ifndef SERIALGC | |
| 38 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" | |
| 39 #include "oops/oop.pcgc.inline.hpp" | |
| 40 #endif | |
| 0 | 41 |
| 42 klassOop methodDataKlass::create_klass(TRAPS) { | |
| 43 methodDataKlass o; | |
| 44 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); | |
| 45 KlassHandle k = base_create_klass(h_this_klass, header_size(), | |
| 46 o.vtbl_value(), CHECK_NULL); | |
| 47 // Make sure size calculation is right | |
| 48 assert(k()->size() == align_object_size(header_size()), | |
| 49 "wrong size for object"); | |
| 50 return k(); | |
| 51 } | |
| 52 | |
| 53 | |
| 54 int methodDataKlass::oop_size(oop obj) const { | |
| 55 assert(obj->is_methodData(), "must be method data oop"); | |
| 56 return methodDataOop(obj)->object_size(); | |
| 57 } | |
| 58 | |
| 59 | |
| 60 bool methodDataKlass::oop_is_parsable(oop obj) const { | |
| 61 assert(obj->is_methodData(), "must be method data oop"); | |
| 62 return methodDataOop(obj)->object_is_parsable(); | |
| 63 } | |
| 64 | |
| 65 | |
| 66 methodDataOop methodDataKlass::allocate(methodHandle method, TRAPS) { | |
| 67 int size = methodDataOopDesc::compute_allocation_size_in_words(method); | |
| 68 KlassHandle h_k(THREAD, as_klassOop()); | |
| 69 methodDataOop mdo = | |
| 70 (methodDataOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); | |
| 71 assert(!mdo->is_parsable(), "not expecting parsability yet."); | |
| 72 No_Safepoint_Verifier no_safepoint; // init function atomic wrt GC | |
| 73 mdo->initialize(method); | |
| 74 | |
| 75 assert(mdo->is_parsable(), "should be parsable here."); | |
| 76 assert(size == mdo->object_size(), "wrong size for methodDataOop"); | |
| 77 return mdo; | |
| 78 } | |
| 79 | |
| 80 | |
| 81 void methodDataKlass::oop_follow_contents(oop obj) { | |
| 82 assert (obj->is_methodData(), "object must be method data"); | |
| 83 methodDataOop m = methodDataOop(obj); | |
| 84 | |
| 85 obj->follow_header(); | |
| 86 MarkSweep::mark_and_push(m->adr_method()); | |
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87 MarkSweep::mark_and_push(m->adr_graal_mirror()); |
| 0 | 88 ResourceMark rm; |
| 89 for (ProfileData* data = m->first_data(); | |
| 90 m->is_valid(data); | |
| 91 data = m->next_data(data)) { | |
| 92 data->follow_contents(); | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 #ifndef SERIALGC | |
| 97 void methodDataKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 98 oop obj) { | |
| 99 assert (obj->is_methodData(), "object must be method data"); | |
| 100 methodDataOop m = methodDataOop(obj); | |
| 101 | |
| 102 obj->follow_header(cm); | |
| 103 PSParallelCompact::mark_and_push(cm, m->adr_method()); | |
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104 PSParallelCompact::mark_and_push(cm, m->adr_graal_mirror()); |
| 0 | 105 ResourceMark rm; |
| 106 for (ProfileData* data = m->first_data(); | |
| 107 m->is_valid(data); | |
| 108 data = m->next_data(data)) { | |
| 109 data->follow_contents(cm); | |
| 110 } | |
| 111 } | |
| 112 #endif // SERIALGC | |
| 113 | |
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114 |
| 0 | 115 int methodDataKlass::oop_oop_iterate(oop obj, OopClosure* blk) { |
| 116 assert (obj->is_methodData(), "object must be method data"); | |
| 117 methodDataOop m = methodDataOop(obj); | |
| 118 // Get size before changing pointers | |
| 119 // Don't call size() or oop_size() since that is a virtual call. | |
| 120 int size = m->object_size(); | |
| 121 | |
| 122 obj->oop_iterate_header(blk); | |
| 123 blk->do_oop(m->adr_method()); | |
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124 blk->do_oop(m->adr_graal_mirror()); |
| 0 | 125 ResourceMark rm; |
| 126 for (ProfileData* data = m->first_data(); | |
| 127 m->is_valid(data); | |
| 128 data = m->next_data(data)) { | |
| 129 data->oop_iterate(blk); | |
| 130 } | |
| 131 return size; | |
| 132 } | |
| 133 | |
| 134 int methodDataKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
| 135 assert (obj->is_methodData(), "object must be method data"); | |
| 136 methodDataOop m = methodDataOop(obj); | |
| 137 // Get size before changing pointers | |
| 138 // Don't call size() or oop_size() since that is a virtual call. | |
| 139 int size = m->object_size(); | |
| 140 | |
| 141 obj->oop_iterate_header(blk, mr); | |
| 142 oop* adr = m->adr_method(); | |
| 143 if (mr.contains(adr)) { | |
| 144 blk->do_oop(m->adr_method()); | |
| 145 } | |
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146 adr = m->adr_graal_mirror(); |
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147 if(mr.contains(adr)) { |
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148 blk->do_oop(m->adr_graal_mirror()); |
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149 } |
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150 |
| 0 | 151 ResourceMark rm; |
| 152 for (ProfileData* data = m->first_data(); | |
| 153 m->is_valid(data); | |
| 154 data = m->next_data(data)) { | |
| 155 data->oop_iterate_m(blk, mr); | |
| 156 } | |
| 157 return size; | |
| 158 } | |
| 159 | |
| 160 int methodDataKlass::oop_adjust_pointers(oop obj) { | |
| 161 assert(obj->is_methodData(), "should be method data"); | |
| 162 methodDataOop m = methodDataOop(obj); | |
| 163 // Get size before changing pointers | |
| 164 // Don't call size() or oop_size() since that is a virtual call. | |
| 165 int size = m->object_size(); | |
| 166 | |
| 167 obj->adjust_header(); | |
| 168 MarkSweep::adjust_pointer(m->adr_method()); | |
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169 MarkSweep::adjust_pointer(m->adr_graal_mirror()); |
| 0 | 170 ResourceMark rm; |
| 171 ProfileData* data; | |
| 172 for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { | |
| 173 data->adjust_pointers(); | |
| 174 } | |
| 175 return size; | |
| 176 } | |
| 177 | |
| 178 | |
| 179 #ifndef SERIALGC | |
| 180 void methodDataKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
| 181 assert (obj->is_methodData(), "object must be method data"); | |
| 182 methodDataOop m = methodDataOop(obj); | |
| 183 // This should never point into the young gen. | |
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184 assert(!PSScavenge::should_scavenge(m->adr_method()), "Sanity"); |
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185 |
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186 oop* adr = m->adr_graal_mirror(); |
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187 if(PSScavenge::should_scavenge(adr)) { |
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188 pm->claim_or_forward_depth(adr); |
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189 } |
| 0 | 190 } |
| 191 | |
| 192 int methodDataKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 193 assert(obj->is_methodData(), "should be method data"); | |
| 194 methodDataOop m = methodDataOop(obj); | |
| 195 | |
| 196 PSParallelCompact::adjust_pointer(m->adr_method()); | |
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197 PSParallelCompact::adjust_pointer(m->adr_graal_mirror()); |
| 0 | 198 |
| 199 ResourceMark rm; | |
| 200 ProfileData* data; | |
| 201 for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { | |
| 202 data->update_pointers(); | |
| 203 } | |
| 204 return m->object_size(); | |
| 205 } | |
| 206 #endif // SERIALGC | |
| 207 | |
| 208 #ifndef PRODUCT | |
| 209 | |
| 210 // Printing | |
| 211 void methodDataKlass::oop_print_on(oop obj, outputStream* st) { | |
| 212 assert(obj->is_methodData(), "should be method data"); | |
| 213 methodDataOop m = methodDataOop(obj); | |
| 214 st->print("method data for "); | |
| 215 m->method()->print_value_on(st); | |
| 216 st->cr(); | |
| 217 m->print_data_on(st); | |
| 218 } | |
| 219 | |
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220 #endif //PRODUCT |
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221 |
| 0 | 222 void methodDataKlass::oop_print_value_on(oop obj, outputStream* st) { |
| 223 assert(obj->is_methodData(), "should be method data"); | |
| 224 methodDataOop m = methodDataOop(obj); | |
| 225 st->print("method data for "); | |
| 226 m->method()->print_value_on(st); | |
| 227 } | |
| 228 | |
| 229 const char* methodDataKlass::internal_name() const { | |
| 230 return "{method data}"; | |
| 231 } | |
| 232 | |
| 233 | |
| 234 // Verification | |
| 235 void methodDataKlass::oop_verify_on(oop obj, outputStream* st) { | |
| 236 Klass::oop_verify_on(obj, st); | |
| 237 guarantee(obj->is_methodData(), "object must be method data"); | |
| 238 methodDataOop m = methodDataOop(obj); | |
| 239 guarantee(m->is_perm(), "should be in permspace"); | |
| 240 m->verify_data_on(st); | |
| 241 } |