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annotate src/share/vm/oops/methodDataKlass.cpp @ 4977:532be189cf09
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| author | Thomas Wuerthinger <thomas.wuerthinger@oracle.com> |
|---|---|
| date | Mon, 27 Feb 2012 17:06:18 +0100 |
| parents | 59d3d0b80975 |
| children | 18a5539bf19b |
| rev | line source |
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| 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 | |
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38 #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" |
| 1972 | 39 #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" |
| 40 #include "oops/oop.pcgc.inline.hpp" | |
| 41 #endif | |
| 0 | 42 |
| 43 klassOop methodDataKlass::create_klass(TRAPS) { | |
| 44 methodDataKlass o; | |
| 45 KlassHandle h_this_klass(THREAD, Universe::klassKlassObj()); | |
| 46 KlassHandle k = base_create_klass(h_this_klass, header_size(), | |
| 47 o.vtbl_value(), CHECK_NULL); | |
| 48 // Make sure size calculation is right | |
| 49 assert(k()->size() == align_object_size(header_size()), | |
| 50 "wrong size for object"); | |
| 51 return k(); | |
| 52 } | |
| 53 | |
| 54 | |
| 55 int methodDataKlass::oop_size(oop obj) const { | |
| 56 assert(obj->is_methodData(), "must be method data oop"); | |
| 57 return methodDataOop(obj)->object_size(); | |
| 58 } | |
| 59 | |
| 60 | |
| 61 bool methodDataKlass::oop_is_parsable(oop obj) const { | |
| 62 assert(obj->is_methodData(), "must be method data oop"); | |
| 63 return methodDataOop(obj)->object_is_parsable(); | |
| 64 } | |
| 65 | |
| 66 | |
| 67 methodDataOop methodDataKlass::allocate(methodHandle method, TRAPS) { | |
| 68 int size = methodDataOopDesc::compute_allocation_size_in_words(method); | |
| 69 KlassHandle h_k(THREAD, as_klassOop()); | |
| 70 methodDataOop mdo = | |
| 71 (methodDataOop)CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); | |
| 72 assert(!mdo->is_parsable(), "not expecting parsability yet."); | |
| 73 No_Safepoint_Verifier no_safepoint; // init function atomic wrt GC | |
| 74 mdo->initialize(method); | |
| 75 | |
| 76 assert(mdo->is_parsable(), "should be parsable here."); | |
| 77 assert(size == mdo->object_size(), "wrong size for methodDataOop"); | |
| 78 return mdo; | |
| 79 } | |
| 80 | |
| 81 | |
| 82 void methodDataKlass::oop_follow_contents(oop obj) { | |
| 83 assert (obj->is_methodData(), "object must be method data"); | |
| 84 methodDataOop m = methodDataOop(obj); | |
| 85 | |
| 86 obj->follow_header(); | |
| 87 MarkSweep::mark_and_push(m->adr_method()); | |
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88 MarkSweep::mark_and_push(m->adr_graal_mirror()); |
| 0 | 89 ResourceMark rm; |
| 90 for (ProfileData* data = m->first_data(); | |
| 91 m->is_valid(data); | |
| 92 data = m->next_data(data)) { | |
| 93 data->follow_contents(); | |
| 94 } | |
| 95 } | |
| 96 | |
| 97 #ifndef SERIALGC | |
| 98 void methodDataKlass::oop_follow_contents(ParCompactionManager* cm, | |
| 99 oop obj) { | |
| 100 assert (obj->is_methodData(), "object must be method data"); | |
| 101 methodDataOop m = methodDataOop(obj); | |
| 102 | |
| 103 obj->follow_header(cm); | |
| 104 PSParallelCompact::mark_and_push(cm, m->adr_method()); | |
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105 PSParallelCompact::mark_and_push(cm, m->adr_graal_mirror()); |
| 0 | 106 ResourceMark rm; |
| 107 for (ProfileData* data = m->first_data(); | |
| 108 m->is_valid(data); | |
| 109 data = m->next_data(data)) { | |
| 110 data->follow_contents(cm); | |
| 111 } | |
| 112 } | |
| 113 #endif // SERIALGC | |
| 114 | |
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115 |
| 0 | 116 int methodDataKlass::oop_oop_iterate(oop obj, OopClosure* blk) { |
| 117 assert (obj->is_methodData(), "object must be method data"); | |
| 118 methodDataOop m = methodDataOop(obj); | |
| 119 // Get size before changing pointers | |
| 120 // Don't call size() or oop_size() since that is a virtual call. | |
| 121 int size = m->object_size(); | |
| 122 | |
| 123 obj->oop_iterate_header(blk); | |
| 124 blk->do_oop(m->adr_method()); | |
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125 blk->do_oop(m->adr_graal_mirror()); |
| 0 | 126 ResourceMark rm; |
| 127 for (ProfileData* data = m->first_data(); | |
| 128 m->is_valid(data); | |
| 129 data = m->next_data(data)) { | |
| 130 data->oop_iterate(blk); | |
| 131 } | |
| 132 return size; | |
| 133 } | |
| 134 | |
| 135 int methodDataKlass::oop_oop_iterate_m(oop obj, OopClosure* blk, MemRegion mr) { | |
| 136 assert (obj->is_methodData(), "object must be method data"); | |
| 137 methodDataOop m = methodDataOop(obj); | |
| 138 // Get size before changing pointers | |
| 139 // Don't call size() or oop_size() since that is a virtual call. | |
| 140 int size = m->object_size(); | |
| 141 | |
| 142 obj->oop_iterate_header(blk, mr); | |
| 143 oop* adr = m->adr_method(); | |
| 144 if (mr.contains(adr)) { | |
| 145 blk->do_oop(m->adr_method()); | |
| 146 } | |
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147 adr = m->adr_graal_mirror(); |
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148 if(mr.contains(adr)) { |
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149 blk->do_oop(m->adr_graal_mirror()); |
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150 } |
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151 |
| 0 | 152 ResourceMark rm; |
| 153 for (ProfileData* data = m->first_data(); | |
| 154 m->is_valid(data); | |
| 155 data = m->next_data(data)) { | |
| 156 data->oop_iterate_m(blk, mr); | |
| 157 } | |
| 158 return size; | |
| 159 } | |
| 160 | |
| 161 int methodDataKlass::oop_adjust_pointers(oop obj) { | |
| 162 assert(obj->is_methodData(), "should be method data"); | |
| 163 methodDataOop m = methodDataOop(obj); | |
| 164 // Get size before changing pointers | |
| 165 // Don't call size() or oop_size() since that is a virtual call. | |
| 166 int size = m->object_size(); | |
| 167 | |
| 168 obj->adjust_header(); | |
| 169 MarkSweep::adjust_pointer(m->adr_method()); | |
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170 MarkSweep::adjust_pointer(m->adr_graal_mirror()); |
| 0 | 171 ResourceMark rm; |
| 172 ProfileData* data; | |
| 173 for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { | |
| 174 data->adjust_pointers(); | |
| 175 } | |
| 176 return size; | |
| 177 } | |
| 178 | |
| 179 | |
| 180 #ifndef SERIALGC | |
| 181 void methodDataKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { | |
| 182 assert (obj->is_methodData(), "object must be method data"); | |
| 183 methodDataOop m = methodDataOop(obj); | |
| 184 // This should never point into the young gen. | |
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185 assert(!PSScavenge::should_scavenge(m->adr_method()), "Sanity"); |
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186 |
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187 oop* adr = m->adr_graal_mirror(); |
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188 if(PSScavenge::should_scavenge(adr)) { |
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189 pm->claim_or_forward_depth(adr); |
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190 } |
| 0 | 191 } |
| 192 | |
| 193 int methodDataKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { | |
| 194 assert(obj->is_methodData(), "should be method data"); | |
| 195 methodDataOop m = methodDataOop(obj); | |
| 196 | |
| 197 PSParallelCompact::adjust_pointer(m->adr_method()); | |
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198 PSParallelCompact::adjust_pointer(m->adr_graal_mirror()); |
| 0 | 199 |
| 200 ResourceMark rm; | |
| 201 ProfileData* data; | |
| 202 for (data = m->first_data(); m->is_valid(data); data = m->next_data(data)) { | |
| 203 data->update_pointers(); | |
| 204 } | |
| 205 return m->object_size(); | |
| 206 } | |
| 207 #endif // SERIALGC | |
| 208 | |
| 209 #ifndef PRODUCT | |
| 210 | |
| 211 // Printing | |
| 212 void methodDataKlass::oop_print_on(oop obj, outputStream* st) { | |
| 213 assert(obj->is_methodData(), "should be method data"); | |
| 214 methodDataOop m = methodDataOop(obj); | |
| 215 st->print("method data for "); | |
| 216 m->method()->print_value_on(st); | |
| 217 st->cr(); | |
| 218 m->print_data_on(st); | |
| 219 } | |
| 220 | |
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221 #endif //PRODUCT |
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222 |
| 0 | 223 void methodDataKlass::oop_print_value_on(oop obj, outputStream* st) { |
| 224 assert(obj->is_methodData(), "should be method data"); | |
| 225 methodDataOop m = methodDataOop(obj); | |
| 226 st->print("method data for "); | |
| 227 m->method()->print_value_on(st); | |
| 228 } | |
| 229 | |
| 230 const char* methodDataKlass::internal_name() const { | |
| 231 return "{method data}"; | |
| 232 } | |
| 233 | |
| 234 | |
| 235 // Verification | |
| 236 void methodDataKlass::oop_verify_on(oop obj, outputStream* st) { | |
| 237 Klass::oop_verify_on(obj, st); | |
| 238 guarantee(obj->is_methodData(), "object must be method data"); | |
| 239 methodDataOop m = methodDataOop(obj); | |
| 240 guarantee(m->is_perm(), "should be in permspace"); | |
| 241 m->verify_data_on(st); | |
| 242 } |