Mercurial > hg > graal-compiler
view src/share/vm/oops/instanceMirrorKlass.cpp @ 9711:83dcd76c27f1
Merge.
author | Christian Haeubl <haeubl@ssw.jku.at> |
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date | Tue, 14 May 2013 16:57:07 +0200 |
parents | db9981fd3124 |
children | 55a0da3d420b |
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/* * Copyright (c) 2011, 2012, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "classfile/javaClasses.hpp" #include "classfile/systemDictionary.hpp" #include "gc_implementation/shared/markSweep.inline.hpp" #include "gc_interface/collectedHeap.inline.hpp" #include "memory/genOopClosures.inline.hpp" #include "memory/oopFactory.hpp" #include "oops/instanceKlass.hpp" #include "oops/instanceMirrorKlass.hpp" #include "oops/instanceOop.hpp" #include "oops/oop.inline.hpp" #include "oops/symbol.hpp" #include "runtime/handles.inline.hpp" #include "utilities/macros.hpp" #if INCLUDE_ALL_GCS #include "gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp" #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" #include "gc_implementation/g1/g1OopClosures.inline.hpp" #include "gc_implementation/g1/g1RemSet.inline.hpp" #include "gc_implementation/g1/heapRegionSeq.inline.hpp" #include "gc_implementation/parNew/parOopClosures.inline.hpp" #include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp" #include "gc_implementation/parallelScavenge/psScavenge.inline.hpp" #include "oops/oop.pcgc.inline.hpp" #endif // INCLUDE_ALL_GCS int InstanceMirrorKlass::_offset_of_static_fields = 0; #ifdef ASSERT template <class T> void assert_is_in(T *p) { T heap_oop = oopDesc::load_heap_oop(p); if (!oopDesc::is_null(heap_oop)) { oop o = oopDesc::decode_heap_oop_not_null(heap_oop); assert(Universe::heap()->is_in(o), "should be in heap"); } } template <class T> void assert_is_in_closed_subset(T *p) { T heap_oop = oopDesc::load_heap_oop(p); if (!oopDesc::is_null(heap_oop)) { oop o = oopDesc::decode_heap_oop_not_null(heap_oop); assert(Universe::heap()->is_in_closed_subset(o), "should be in closed"); } } template <class T> void assert_is_in_reserved(T *p) { T heap_oop = oopDesc::load_heap_oop(p); if (!oopDesc::is_null(heap_oop)) { oop o = oopDesc::decode_heap_oop_not_null(heap_oop); assert(Universe::heap()->is_in_reserved(o), "should be in reserved"); } } template <class T> void assert_nothing(T *p) {} #else template <class T> void assert_is_in(T *p) {} template <class T> void assert_is_in_closed_subset(T *p) {} template <class T> void assert_is_in_reserved(T *p) {} template <class T> void assert_nothing(T *p) {} #endif // ASSERT #define InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE( \ T, start_p, count, do_oop, \ assert_fn) \ { \ T* p = (T*)(start_p); \ T* const end = p + (count); \ while (p < end) { \ (assert_fn)(p); \ do_oop; \ ++p; \ } \ } #define InstanceMirrorKlass_SPECIALIZED_BOUNDED_OOP_ITERATE( \ T, start_p, count, low, high, \ do_oop, assert_fn) \ { \ T* const l = (T*)(low); \ T* const h = (T*)(high); \ assert(mask_bits((intptr_t)l, sizeof(T)-1) == 0 && \ mask_bits((intptr_t)h, sizeof(T)-1) == 0, \ "bounded region must be properly aligned"); \ T* p = (T*)(start_p); \ T* end = p + (count); \ if (p < l) p = l; \ if (end > h) end = h; \ while (p < end) { \ (assert_fn)(p); \ do_oop; \ ++p; \ } \ } #define InstanceMirrorKlass_OOP_ITERATE(start_p, count, \ do_oop, assert_fn) \ { \ if (UseCompressedOops) { \ InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE(narrowOop, \ start_p, count, \ do_oop, assert_fn) \ } else { \ InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE(oop, \ start_p, count, \ do_oop, assert_fn) \ } \ } // The following macros call specialized macros, passing either oop or // narrowOop as the specialization type. These test the UseCompressedOops // flag. #define InstanceMirrorKlass_BOUNDED_OOP_ITERATE(start_p, count, low, high, \ do_oop, assert_fn) \ { \ if (UseCompressedOops) { \ InstanceMirrorKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop, \ start_p, count, \ low, high, \ do_oop, assert_fn) \ } else { \ InstanceMirrorKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop, \ start_p, count, \ low, high, \ do_oop, assert_fn) \ } \ } void InstanceMirrorKlass::oop_follow_contents(oop obj) { InstanceKlass::oop_follow_contents(obj); // Follow the klass field in the mirror. Klass* klass = java_lang_Class::as_Klass(obj); if (klass != NULL) { MarkSweep::follow_klass(klass); } else { // If klass is NULL then this a mirror for a primitive type. // We don't have to follow them, since they are handled as strong // roots in Universe::oops_do. assert(java_lang_Class::is_primitive(obj), "Sanity check"); } InstanceMirrorKlass_OOP_ITERATE( \ start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ MarkSweep::mark_and_push(p), \ assert_is_in_closed_subset) } #if INCLUDE_ALL_GCS void InstanceMirrorKlass::oop_follow_contents(ParCompactionManager* cm, oop obj) { InstanceKlass::oop_follow_contents(cm, obj); // Follow the klass field in the mirror. Klass* klass = java_lang_Class::as_Klass(obj); if (klass != NULL) { PSParallelCompact::follow_klass(cm, klass); } else { // If klass is NULL then this a mirror for a primitive type. // We don't have to follow them, since they are handled as strong // roots in Universe::oops_do. assert(java_lang_Class::is_primitive(obj), "Sanity check"); } InstanceMirrorKlass_OOP_ITERATE( \ start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ PSParallelCompact::mark_and_push(cm, p), \ assert_is_in) } #endif // INCLUDE_ALL_GCS int InstanceMirrorKlass::oop_adjust_pointers(oop obj) { int size = oop_size(obj); InstanceKlass::oop_adjust_pointers(obj); // Follow the klass field in the mirror. Klass* klass = java_lang_Class::as_Klass(obj); if (klass != NULL) { MarkSweep::adjust_klass(klass); } else { // If klass is NULL then this a mirror for a primitive type. // We don't have to follow them, since they are handled as strong // roots in Universe::oops_do. assert(java_lang_Class::is_primitive(obj), "Sanity check"); } InstanceMirrorKlass_OOP_ITERATE( \ start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ MarkSweep::adjust_pointer(p), \ assert_nothing) return size; } #define InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(T, nv_suffix) \ InstanceMirrorKlass_OOP_ITERATE( \ start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ (closure)->do_oop##nv_suffix(p), \ assert_is_in_closed_subset) \ return oop_size(obj); \ #define InstanceMirrorKlass_BOUNDED_SPECIALIZED_OOP_ITERATE(T, nv_suffix, mr) \ InstanceMirrorKlass_BOUNDED_OOP_ITERATE( \ start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj), \ mr.start(), mr.end(), \ (closure)->do_oop##nv_suffix(p), \ assert_is_in_closed_subset) \ return oop_size(obj); \ #define if_do_metadata_checked(closure, nv_suffix) \ /* Make sure the non-virtual and the virtual versions match. */ \ assert(closure->do_metadata##nv_suffix() == closure->do_metadata(), \ "Inconsistency in do_metadata"); \ if (closure->do_metadata##nv_suffix()) // Macro to define InstanceMirrorKlass::oop_oop_iterate for virtual/nonvirtual for // all closures. Macros calling macros above for each oop size. #define InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix) \ \ int InstanceMirrorKlass:: \ oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \ /* Get size before changing pointers */ \ SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk); \ \ InstanceKlass::oop_oop_iterate##nv_suffix(obj, closure); \ \ if_do_metadata_checked(closure, nv_suffix) { \ Klass* klass = java_lang_Class::as_Klass(obj); \ /* We'll get NULL for primitive mirrors. */ \ if (klass != NULL) { \ closure->do_klass##nv_suffix(klass); \ } \ } \ \ if (UseCompressedOops) { \ InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(narrowOop, nv_suffix); \ } else { \ InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(oop, nv_suffix); \ } \ } #if INCLUDE_ALL_GCS #define InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \ \ int InstanceMirrorKlass:: \ oop_oop_iterate_backwards##nv_suffix(oop obj, OopClosureType* closure) { \ /* Get size before changing pointers */ \ SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk); \ \ InstanceKlass::oop_oop_iterate_backwards##nv_suffix(obj, closure); \ \ if (UseCompressedOops) { \ InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(narrowOop, nv_suffix); \ } else { \ InstanceMirrorKlass_SPECIALIZED_OOP_ITERATE_DEFN(oop, nv_suffix); \ } \ } #endif // INCLUDE_ALL_GCS #define InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \ \ int InstanceMirrorKlass:: \ oop_oop_iterate##nv_suffix##_m(oop obj, \ OopClosureType* closure, \ MemRegion mr) { \ SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::irk); \ \ InstanceKlass::oop_oop_iterate##nv_suffix##_m(obj, closure, mr); \ \ if_do_metadata_checked(closure, nv_suffix) { \ if (mr.contains(obj)) { \ Klass* klass = java_lang_Class::as_Klass(obj); \ /* We'll get NULL for primitive mirrors. */ \ if (klass != NULL) { \ closure->do_klass##nv_suffix(klass); \ } \ } \ } \ \ if (UseCompressedOops) { \ InstanceMirrorKlass_BOUNDED_SPECIALIZED_OOP_ITERATE(narrowOop, nv_suffix, mr); \ } else { \ InstanceMirrorKlass_BOUNDED_SPECIALIZED_OOP_ITERATE(oop, nv_suffix, mr); \ } \ } ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN) ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN) #if INCLUDE_ALL_GCS ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN) ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceMirrorKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN) #endif // INCLUDE_ALL_GCS ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m) ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceMirrorKlass_OOP_OOP_ITERATE_DEFN_m) #if INCLUDE_ALL_GCS void InstanceMirrorKlass::oop_push_contents(PSPromotionManager* pm, oop obj) { // Note that we don't have to follow the mirror -> klass pointer, since all // klasses that are dirty will be scavenged when we iterate over the // ClassLoaderData objects. InstanceKlass::oop_push_contents(pm, obj); InstanceMirrorKlass_OOP_ITERATE( \ start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj),\ if (PSScavenge::should_scavenge(p)) { \ pm->claim_or_forward_depth(p); \ }, \ assert_nothing ) } int InstanceMirrorKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) { int size = oop_size(obj); InstanceKlass::oop_update_pointers(cm, obj); // Follow the klass field in the mirror. Klass* klass = java_lang_Class::as_Klass(obj); if (klass != NULL) { PSParallelCompact::adjust_klass(cm, klass); } else { // If klass is NULL then this a mirror for a primitive type. // We don't have to follow them, since they are handled as strong // roots in Universe::oops_do. assert(java_lang_Class::is_primitive(obj), "Sanity check"); } InstanceMirrorKlass_OOP_ITERATE( \ start_of_static_fields(obj), java_lang_Class::static_oop_field_count(obj),\ PSParallelCompact::adjust_pointer(p), \ assert_nothing) return size; } #endif // INCLUDE_ALL_GCS int InstanceMirrorKlass::instance_size(KlassHandle k) { if (k() != NULL && k->oop_is_instance()) { return align_object_size(size_helper() + InstanceKlass::cast(k())->static_field_size()); } return size_helper(); } instanceOop InstanceMirrorKlass::allocate_instance(KlassHandle k, TRAPS) { // Query before forming handle. int size = instance_size(k); KlassHandle h_k(THREAD, this); instanceOop i = (instanceOop) CollectedHeap::Class_obj_allocate(h_k, size, k, CHECK_NULL); return i; } int InstanceMirrorKlass::oop_size(oop obj) const { return java_lang_Class::oop_size(obj); } int InstanceMirrorKlass::compute_static_oop_field_count(oop obj) { Klass* k = java_lang_Class::as_Klass(obj); if (k != NULL && k->oop_is_instance()) { return InstanceKlass::cast(k)->static_oop_field_count(); } return 0; }