Sat, 10 Sep 2011 17:29:02 -0700
7086585: make Java field injection more flexible
Reviewed-by: jrose, twisti, kvn, coleenp
never@2658 | 1 | /* |
never@2658 | 2 | * Copyright (c) 2011, Oracle and/or its affiliates. All rights reserved. |
never@2658 | 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
never@2658 | 4 | * |
never@2658 | 5 | * This code is free software; you can redistribute it and/or modify it |
never@2658 | 6 | * under the terms of the GNU General Public License version 2 only, as |
never@2658 | 7 | * published by the Free Software Foundation. |
never@2658 | 8 | * |
never@2658 | 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
never@2658 | 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
never@2658 | 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
never@2658 | 12 | * version 2 for more details (a copy is included in the LICENSE file that |
never@2658 | 13 | * accompanied this code). |
never@2658 | 14 | * |
never@2658 | 15 | * You should have received a copy of the GNU General Public License version |
never@2658 | 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
never@2658 | 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
never@2658 | 18 | * |
never@2658 | 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
never@2658 | 20 | * or visit www.oracle.com if you need additional information or have any |
never@2658 | 21 | * questions. |
never@2658 | 22 | * |
never@2658 | 23 | */ |
never@2658 | 24 | |
never@2658 | 25 | #include "precompiled.hpp" |
never@2658 | 26 | #include "classfile/javaClasses.hpp" |
never@2658 | 27 | #include "classfile/systemDictionary.hpp" |
never@2658 | 28 | #include "gc_implementation/shared/markSweep.inline.hpp" |
never@2658 | 29 | #include "gc_interface/collectedHeap.inline.hpp" |
never@2658 | 30 | #include "memory/genOopClosures.inline.hpp" |
never@2658 | 31 | #include "memory/oopFactory.hpp" |
never@2658 | 32 | #include "memory/permGen.hpp" |
never@2658 | 33 | #include "oops/instanceKlass.hpp" |
never@2658 | 34 | #include "oops/instanceMirrorKlass.hpp" |
never@2658 | 35 | #include "oops/instanceOop.hpp" |
never@2658 | 36 | #include "oops/oop.inline.hpp" |
never@2658 | 37 | #include "oops/symbol.hpp" |
never@2658 | 38 | #include "runtime/handles.inline.hpp" |
never@2658 | 39 | #ifndef SERIALGC |
never@2658 | 40 | #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
never@2658 | 41 | #include "gc_implementation/g1/g1OopClosures.inline.hpp" |
never@2658 | 42 | #include "gc_implementation/g1/g1RemSet.inline.hpp" |
never@2658 | 43 | #include "gc_implementation/g1/heapRegionSeq.inline.hpp" |
never@2658 | 44 | #include "gc_implementation/parNew/parOopClosures.inline.hpp" |
never@2658 | 45 | #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" |
never@2658 | 46 | #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" |
never@2658 | 47 | #include "oops/oop.pcgc.inline.hpp" |
never@2658 | 48 | #endif |
never@2658 | 49 | |
never@2658 | 50 | int instanceMirrorKlass::_offset_of_static_fields = 0; |
never@2658 | 51 | |
never@2658 | 52 | #ifdef ASSERT |
never@2658 | 53 | template <class T> void assert_is_in(T *p) { |
never@2658 | 54 | T heap_oop = oopDesc::load_heap_oop(p); |
never@2658 | 55 | if (!oopDesc::is_null(heap_oop)) { |
never@2658 | 56 | oop o = oopDesc::decode_heap_oop_not_null(heap_oop); |
never@2658 | 57 | assert(Universe::heap()->is_in(o), "should be in heap"); |
never@2658 | 58 | } |
never@2658 | 59 | } |
never@2658 | 60 | template <class T> void assert_is_in_closed_subset(T *p) { |
never@2658 | 61 | T heap_oop = oopDesc::load_heap_oop(p); |
never@2658 | 62 | if (!oopDesc::is_null(heap_oop)) { |
never@2658 | 63 | oop o = oopDesc::decode_heap_oop_not_null(heap_oop); |
never@2658 | 64 | assert(Universe::heap()->is_in_closed_subset(o), "should be in closed"); |
never@2658 | 65 | } |
never@2658 | 66 | } |
never@2658 | 67 | template <class T> void assert_is_in_reserved(T *p) { |
never@2658 | 68 | T heap_oop = oopDesc::load_heap_oop(p); |
never@2658 | 69 | if (!oopDesc::is_null(heap_oop)) { |
never@2658 | 70 | oop o = oopDesc::decode_heap_oop_not_null(heap_oop); |
never@2658 | 71 | assert(Universe::heap()->is_in_reserved(o), "should be in reserved"); |
never@2658 | 72 | } |
never@2658 | 73 | } |
never@2658 | 74 | template <class T> void assert_nothing(T *p) {} |
never@2658 | 75 | |
never@2658 | 76 | #else |
never@2658 | 77 | template <class T> void assert_is_in(T *p) {} |
never@2658 | 78 | template <class T> void assert_is_in_closed_subset(T *p) {} |
never@2658 | 79 | template <class T> void assert_is_in_reserved(T *p) {} |
never@2658 | 80 | template <class T> void assert_nothing(T *p) {} |
never@2658 | 81 | #endif // ASSERT |
never@2658 | 82 | |
never@2658 | 83 | #define InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE( \ |
never@2658 | 84 | T, start_p, count, do_oop, \ |
never@2658 | 85 | assert_fn) \ |
never@2658 | 86 | { \ |
never@2658 | 87 | T* p = (T*)(start_p); \ |
never@2658 | 88 | T* const end = p + (count); \ |
never@2658 | 89 | while (p < end) { \ |
never@2658 | 90 | (assert_fn)(p); \ |
never@2658 | 91 | do_oop; \ |
never@2658 | 92 | ++p; \ |
never@2658 | 93 | } \ |
never@2658 | 94 | } |
never@2658 | 95 | |
never@2658 | 96 | #define InstanceMirrorKlass_SPECIALIZED_BOUNDED_OOP_ITERATE( \ |
never@2658 | 97 | T, start_p, count, low, high, \ |
never@2658 | 98 | do_oop, assert_fn) \ |
never@2658 | 99 | { \ |
never@2658 | 100 | T* const l = (T*)(low); \ |
never@2658 | 101 | T* const h = (T*)(high); \ |
never@2658 | 102 | assert(mask_bits((intptr_t)l, sizeof(T)-1) == 0 && \ |
never@2658 | 103 | mask_bits((intptr_t)h, sizeof(T)-1) == 0, \ |
never@2658 | 104 | "bounded region must be properly aligned"); \ |
never@2658 | 105 | T* p = (T*)(start_p); \ |
never@2658 | 106 | T* end = p + (count); \ |
never@2658 | 107 | if (p < l) p = l; \ |
never@2658 | 108 | if (end > h) end = h; \ |
never@2658 | 109 | while (p < end) { \ |
never@2658 | 110 | (assert_fn)(p); \ |
never@2658 | 111 | do_oop; \ |
never@2658 | 112 | ++p; \ |
never@2658 | 113 | } \ |
never@2658 | 114 | } |
never@2658 | 115 | |
never@2658 | 116 | |
never@2658 | 117 | #define InstanceMirrorKlass_OOP_ITERATE(start_p, count, \ |
never@2658 | 118 | do_oop, assert_fn) \ |
never@2658 | 119 | { \ |
never@2658 | 120 | if (UseCompressedOops) { \ |
never@2658 | 121 | InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE(narrowOop, \ |
never@2658 | 122 | start_p, count, \ |
never@2658 | 123 | do_oop, assert_fn) \ |
never@2658 | 124 | } else { \ |
never@2658 | 125 | InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE(oop, \ |
never@2658 | 126 | start_p, count, \ |
never@2658 | 127 | do_oop, assert_fn) \ |
never@2658 | 128 | } \ |
never@2658 | 129 | } |
never@2658 | 130 | |
never@2658 | 131 | // The following macros call specialized macros, passing either oop or |
never@2658 | 132 | // narrowOop as the specialization type. These test the UseCompressedOops |
never@2658 | 133 | // flag. |
never@2658 | 134 | #define InstanceMirrorKlass_BOUNDED_OOP_ITERATE(start_p, count, low, high, \ |
never@2658 | 135 | do_oop, assert_fn) \ |
never@2658 | 136 | { \ |
never@2658 | 137 | if (UseCompressedOops) { \ |
never@2658 | 138 | InstanceMirrorKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop, \ |
never@2658 | 139 | start_p, count, \ |
never@2658 | 140 | low, high, \ |
never@2658 | 141 | do_oop, assert_fn) \ |
never@2658 | 142 | } else { \ |
never@2658 | 143 | InstanceMirrorKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop, \ |
never@2658 | 144 | start_p, count, \ |
never@2658 | 145 | low, high, \ |
never@2658 | 146 | do_oop, assert_fn) \ |
never@2658 | 147 | } \ |
never@2658 | 148 | } |
never@2658 | 149 | |
never@2658 | 150 | |
never@2658 | 151 | void instanceMirrorKlass::oop_follow_contents(oop obj) { |
never@2658 | 152 | instanceKlass::oop_follow_contents(obj); |
never@2658 | 153 | InstanceMirrorKlass_OOP_ITERATE( \ |
never@2658 | 154 | start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
never@2658 | 155 | MarkSweep::mark_and_push(p), \ |
never@2658 | 156 | assert_is_in_closed_subset) |
never@2658 | 157 | } |
never@2658 | 158 | |
never@2658 | 159 | #ifndef SERIALGC |
never@2658 | 160 | void instanceMirrorKlass::oop_follow_contents(ParCompactionManager* cm, |
never@2658 | 161 | oop obj) { |
never@2658 | 162 | instanceKlass::oop_follow_contents(cm, obj); |
never@2658 | 163 | InstanceMirrorKlass_OOP_ITERATE( \ |
never@2658 | 164 | start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
never@2658 | 165 | PSParallelCompact::mark_and_push(cm, p), \ |
never@2658 | 166 | assert_is_in) |
never@2658 | 167 | } |
never@2658 | 168 | #endif // SERIALGC |
never@2658 | 169 | |
never@2658 | 170 | int instanceMirrorKlass::oop_adjust_pointers(oop obj) { |
never@2658 | 171 | int size = oop_size(obj); |
never@2658 | 172 | instanceKlass::oop_adjust_pointers(obj); |
never@2658 | 173 | InstanceMirrorKlass_OOP_ITERATE( \ |
never@2658 | 174 | start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
never@2658 | 175 | MarkSweep::adjust_pointer(p), \ |
never@2658 | 176 | assert_nothing) |
never@2658 | 177 | return size; |
never@2658 | 178 | } |
never@2658 | 179 | |
never@2658 | 180 | #define InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(T, nv_suffix) \ |
never@2658 | 181 | InstanceMirrorKlass_OOP_ITERATE( \ |
never@2658 | 182 | start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
never@2658 | 183 | (closure)->do_oop##nv_suffix(p), \ |
never@2658 | 184 | assert_is_in_closed_subset) \ |
never@2658 | 185 | return oop_size(obj); \ |
never@2658 | 186 | |
never@2658 | 187 | #define InstanceMirrorKlass_BOUNDED_SPECIALIZED_OOP_ITERATE(T, nv_suffix, mr) \ |
never@2658 | 188 | InstanceMirrorKlass_BOUNDED_OOP_ITERATE( \ |
never@2658 | 189 | start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ |
never@2658 | 190 | mr.start(), mr.end(), \ |
never@2658 | 191 | (closure)->do_oop##nv_suffix(p), \ |
never@2658 | 192 | assert_is_in_closed_subset) \ |
never@2658 | 193 | return oop_size(obj); \ |
never@2658 | 194 | |
never@2658 | 195 | |
never@2658 | 196 | // Macro to define instanceMirrorKlass::oop_oop_iterate for virtual/nonvirtual for |
never@2658 | 197 | // all closures. Macros calling macros above for each oop size. |
never@2658 | 198 | |
never@2658 | 199 | #define InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ |
never@2658 | 200 | \ |
never@2658 | 201 | int instanceMirrorKlass:: \ |
never@2658 | 202 | oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \ |
never@2658 | 203 | /* Get size before changing pointers */ \ |
never@2658 | 204 | SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk); \ |
never@2658 | 205 | \ |
never@2658 | 206 | instanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \ |
never@2658 | 207 | \ |
never@2658 | 208 | if (UseCompressedOops) { \ |
never@2658 | 209 | InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(narrowOop, nv_suffix); \ |
never@2658 | 210 | } else { \ |
never@2658 | 211 | InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(oop, nv_suffix); \ |
never@2658 | 212 | } \ |
never@2658 | 213 | } |
never@2658 | 214 | |
never@2658 | 215 | #ifndef SERIALGC |
never@2658 | 216 | #define InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \ |
never@2658 | 217 | \ |
never@2658 | 218 | int instanceMirrorKlass:: \ |
never@2658 | 219 | oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) { \ |
never@2658 | 220 | /* Get size before changing pointers */ \ |
never@2658 | 221 | SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk); \ |
never@2658 | 222 | \ |
never@2658 | 223 | instanceKlass::oop_oop_iterate_backwards##nv_suffix(obj, closure); \ |
never@2658 | 224 | \ |
never@2658 | 225 | if (UseCompressedOops) { \ |
never@2658 | 226 | InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(narrowOop, nv_suffix); \ |
never@2658 | 227 | } else { \ |
never@2658 | 228 | InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(oop, nv_suffix); \ |
never@2658 | 229 | } \ |
never@2658 | 230 | } |
never@2658 | 231 | #endif // !SERIALGC |
never@2658 | 232 | |
never@2658 | 233 | |
never@2658 | 234 | #define InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \ |
never@2658 | 235 | \ |
never@2658 | 236 | int instanceMirrorKlass:: \ |
never@2658 | 237 | oop_oop_iterate##nv_suffix##_m(oop obj, \ |
never@2658 | 238 | OopClosureType* closure, \ |
never@2658 | 239 | MemRegion mr) { \ |
never@2658 | 240 | SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk); \ |
never@2658 | 241 | \ |
never@2658 | 242 | instanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr); \ |
never@2658 | 243 | if (UseCompressedOops) { \ |
never@2658 | 244 | InstanceMirrorKlass_BOUNDED_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, mr); \ |
never@2658 | 245 | } else { \ |
never@2658 | 246 | InstanceMirrorKlass_BOUNDED_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, mr); \ |
never@2658 | 247 | } \ |
never@2658 | 248 | } |
never@2658 | 249 | |
never@2658 | 250 | ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN) |
never@2658 | 251 | ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN) |
never@2658 | 252 | #ifndef SERIALGC |
never@2658 | 253 | ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN) |
never@2658 | 254 | ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN) |
never@2658 | 255 | #endif // SERIALGC |
never@2658 | 256 | ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m) |
never@2658 | 257 | ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m) |
never@2658 | 258 | |
never@2658 | 259 | #ifndef SERIALGC |
never@2658 | 260 | void instanceMirrorKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { |
never@2658 | 261 | instanceKlass::oop_push_contents(pm, obj); |
never@2658 | 262 | InstanceMirrorKlass_OOP_ITERATE( \ |
never@2658 | 263 | start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj),\ |
never@2658 | 264 | if (PSScavenge::should_scavenge(p)) { \ |
never@2658 | 265 | pm->claim_or_forward_depth(p); \ |
never@2658 | 266 | }, \ |
never@2658 | 267 | assert_nothing ) |
never@2658 | 268 | } |
never@2658 | 269 | |
never@2658 | 270 | int instanceMirrorKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { |
never@2658 | 271 | instanceKlass::oop_update_pointers(cm, obj); |
never@2658 | 272 | InstanceMirrorKlass_OOP_ITERATE( \ |
never@2658 | 273 | start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj),\ |
never@2658 | 274 | PSParallelCompact::adjust_pointer(p), \ |
never@2658 | 275 | assert_nothing) |
never@2658 | 276 | return oop_size(obj); |
never@2658 | 277 | } |
never@2658 | 278 | #endif // SERIALGC |
never@2658 | 279 | |
never@2658 | 280 | int instanceMirrorKlass::instance_size(KlassHandle k) { |
never@2658 | 281 | if (k() != NULL && k->oop_is_instance()) { |
never@2658 | 282 | return align_object_size(size_helper() + instanceKlass::cast(k())->static_field_size()); |
never@2658 | 283 | } |
never@2658 | 284 | return size_helper(); |
never@2658 | 285 | } |
never@2658 | 286 | |
never@2658 | 287 | instanceOop instanceMirrorKlass::allocate_instance(KlassHandle k, TRAPS) { |
never@2658 | 288 | // Query before forming handle. |
never@2658 | 289 | int size = instance_size(k); |
never@2658 | 290 | KlassHandle h_k(THREAD, as_klassOop()); |
never@2658 | 291 | instanceOop i; |
never@2658 | 292 | |
never@2658 | 293 | if (JavaObjectsInPerm) { |
never@2658 | 294 | i = (instanceOop) CollectedHeap::permanent_obj_allocate(h_k, size, CHECK_NULL); |
never@2658 | 295 | } else { |
never@2658 | 296 | assert(ScavengeRootsInCode > 0, "must be"); |
never@2658 | 297 | i = (instanceOop) CollectedHeap::obj_allocate(h_k, size, CHECK_NULL); |
never@2658 | 298 | } |
never@2658 | 299 | |
never@2658 | 300 | return i; |
never@2658 | 301 | } |
never@2658 | 302 | |
never@2658 | 303 | int instanceMirrorKlass::oop_size(oop obj) const { |
never@2658 | 304 | return java_lang_Class::oop_size(obj); |
never@2658 | 305 | } |
never@2658 | 306 | |
never@2658 | 307 | int instanceMirrorKlass::compute_static_oop_field_count(oop obj) { |
never@2658 | 308 | klassOop k = java_lang_Class::as_klassOop(obj); |
never@2658 | 309 | if (k != NULL && k->klass_part()->oop_is_instance()) { |
never@2658 | 310 | return instanceKlass::cast(k)->static_oop_field_count(); |
never@2658 | 311 | } |
never@2658 | 312 | return 0; |
never@2658 | 313 | } |