hotspot/src/share/vm/oops/instanceKlassKlass.cpp
author coleenp
Sun, 13 Apr 2008 17:43:42 -0400
changeset 360 21d113ecbf6a
parent 1 489c9b5090e2
child 591 04d2e26e6d69
permissions -rw-r--r--
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
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/*
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 * Copyright 1997-2007 Sun Microsystems, Inc.  All Rights Reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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 * CA 95054 USA or visit www.sun.com if you need additional information or
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 * have any questions.
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 *
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 */
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# include "incls/_precompiled.incl"
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# include "incls/_instanceKlassKlass.cpp.incl"
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klassOop instanceKlassKlass::create_klass(TRAPS) {
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  instanceKlassKlass o;
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  KlassHandle h_this_klass(THREAD, Universe::klassKlassObj());
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  KlassHandle k = base_create_klass(h_this_klass, header_size(), o.vtbl_value(), CHECK_NULL);
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  // Make sure size calculation is right
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  assert(k()->size() == align_object_size(header_size()), "wrong size for object");
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  java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror
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  return k();
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}
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int instanceKlassKlass::oop_size(oop obj) const {
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  assert(obj->is_klass(), "must be klass");
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  return instanceKlass::cast(klassOop(obj))->object_size();
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}
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bool instanceKlassKlass::oop_is_parsable(oop obj) const {
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  assert(obj->is_klass(), "must be klass");
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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  return (!ik->null_vtbl()) && ik->object_is_parsable();
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}
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void instanceKlassKlass::iterate_c_heap_oops(instanceKlass* ik,
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                                             OopClosure* closure) {
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  if (ik->oop_map_cache() != NULL) {
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    ik->oop_map_cache()->oop_iterate(closure);
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  }
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  if (ik->jni_ids() != NULL) {
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    ik->jni_ids()->oops_do(closure);
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  }
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}
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void instanceKlassKlass::oop_follow_contents(oop obj) {
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  assert(obj->is_klass(),"must be a klass");
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  assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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  ik->follow_static_fields();
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  {
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    HandleMark hm;
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    ik->vtable()->oop_follow_contents();
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    ik->itable()->oop_follow_contents();
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  }
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  MarkSweep::mark_and_push(ik->adr_array_klasses());
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  MarkSweep::mark_and_push(ik->adr_methods());
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  MarkSweep::mark_and_push(ik->adr_method_ordering());
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  MarkSweep::mark_and_push(ik->adr_local_interfaces());
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  MarkSweep::mark_and_push(ik->adr_transitive_interfaces());
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  MarkSweep::mark_and_push(ik->adr_fields());
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  MarkSweep::mark_and_push(ik->adr_constants());
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  MarkSweep::mark_and_push(ik->adr_class_loader());
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  MarkSweep::mark_and_push(ik->adr_source_file_name());
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  MarkSweep::mark_and_push(ik->adr_source_debug_extension());
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  MarkSweep::mark_and_push(ik->adr_inner_classes());
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  MarkSweep::mark_and_push(ik->adr_protection_domain());
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  MarkSweep::mark_and_push(ik->adr_signers());
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  MarkSweep::mark_and_push(ik->adr_generic_signature());
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  MarkSweep::mark_and_push(ik->adr_class_annotations());
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  MarkSweep::mark_and_push(ik->adr_fields_annotations());
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  MarkSweep::mark_and_push(ik->adr_methods_annotations());
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  MarkSweep::mark_and_push(ik->adr_methods_parameter_annotations());
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  MarkSweep::mark_and_push(ik->adr_methods_default_annotations());
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  // We do not follow adr_implementors() here. It is followed later
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  // in instanceKlass::follow_weak_klass_links()
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  klassKlass::oop_follow_contents(obj);
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  iterate_c_heap_oops(ik, &MarkSweep::mark_and_push_closure);
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}
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#ifndef SERIALGC
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void instanceKlassKlass::oop_follow_contents(ParCompactionManager* cm,
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                                             oop obj) {
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  assert(obj->is_klass(),"must be a klass");
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  assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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  ik->follow_static_fields(cm);
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  ik->vtable()->oop_follow_contents(cm);
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  ik->itable()->oop_follow_contents(cm);
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  PSParallelCompact::mark_and_push(cm, ik->adr_array_klasses());
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  PSParallelCompact::mark_and_push(cm, ik->adr_methods());
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  PSParallelCompact::mark_and_push(cm, ik->adr_method_ordering());
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  PSParallelCompact::mark_and_push(cm, ik->adr_local_interfaces());
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  PSParallelCompact::mark_and_push(cm, ik->adr_transitive_interfaces());
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  PSParallelCompact::mark_and_push(cm, ik->adr_fields());
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  PSParallelCompact::mark_and_push(cm, ik->adr_constants());
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  PSParallelCompact::mark_and_push(cm, ik->adr_class_loader());
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  PSParallelCompact::mark_and_push(cm, ik->adr_source_file_name());
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  PSParallelCompact::mark_and_push(cm, ik->adr_source_debug_extension());
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  PSParallelCompact::mark_and_push(cm, ik->adr_inner_classes());
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  PSParallelCompact::mark_and_push(cm, ik->adr_protection_domain());
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  PSParallelCompact::mark_and_push(cm, ik->adr_signers());
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  PSParallelCompact::mark_and_push(cm, ik->adr_generic_signature());
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  PSParallelCompact::mark_and_push(cm, ik->adr_class_annotations());
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  PSParallelCompact::mark_and_push(cm, ik->adr_fields_annotations());
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  PSParallelCompact::mark_and_push(cm, ik->adr_methods_annotations());
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  PSParallelCompact::mark_and_push(cm, ik->adr_methods_parameter_annotations());
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  PSParallelCompact::mark_and_push(cm, ik->adr_methods_default_annotations());
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  // We do not follow adr_implementor() here. It is followed later
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  // in instanceKlass::follow_weak_klass_links()
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  klassKlass::oop_follow_contents(cm, obj);
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  PSParallelCompact::MarkAndPushClosure mark_and_push_closure(cm);
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  iterate_c_heap_oops(ik, &mark_and_push_closure);
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}
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#endif // SERIALGC
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int instanceKlassKlass::oop_oop_iterate(oop obj, OopClosure* blk) {
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  assert(obj->is_klass(),"must be a klass");
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  assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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  // Get size before changing pointers.
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  // Don't call size() or oop_size() since that is a virtual call.
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  int size = ik->object_size();
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  ik->iterate_static_fields(blk);
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  ik->vtable()->oop_oop_iterate(blk);
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  ik->itable()->oop_oop_iterate(blk);
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  blk->do_oop(ik->adr_array_klasses());
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  blk->do_oop(ik->adr_methods());
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  blk->do_oop(ik->adr_method_ordering());
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  blk->do_oop(ik->adr_local_interfaces());
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  blk->do_oop(ik->adr_transitive_interfaces());
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  blk->do_oop(ik->adr_fields());
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  blk->do_oop(ik->adr_constants());
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  blk->do_oop(ik->adr_class_loader());
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  blk->do_oop(ik->adr_protection_domain());
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  blk->do_oop(ik->adr_signers());
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  blk->do_oop(ik->adr_source_file_name());
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  blk->do_oop(ik->adr_source_debug_extension());
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  blk->do_oop(ik->adr_inner_classes());
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  for (int i = 0; i < instanceKlass::implementors_limit; i++) {
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    blk->do_oop(&ik->adr_implementors()[i]);
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  }
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  blk->do_oop(ik->adr_generic_signature());
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  blk->do_oop(ik->adr_class_annotations());
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  blk->do_oop(ik->adr_fields_annotations());
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  blk->do_oop(ik->adr_methods_annotations());
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  blk->do_oop(ik->adr_methods_parameter_annotations());
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  blk->do_oop(ik->adr_methods_default_annotations());
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  klassKlass::oop_oop_iterate(obj, blk);
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  if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk);
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  return size;
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}
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int instanceKlassKlass::oop_oop_iterate_m(oop obj, OopClosure* blk,
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                                           MemRegion mr) {
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  assert(obj->is_klass(),"must be a klass");
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  assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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  // Get size before changing pointers.
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  // Don't call size() or oop_size() since that is a virtual call.
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  int size = ik->object_size();
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  ik->iterate_static_fields(blk, mr);
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  ik->vtable()->oop_oop_iterate_m(blk, mr);
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  ik->itable()->oop_oop_iterate_m(blk, mr);
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  oop* adr;
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  adr = ik->adr_array_klasses();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_methods();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_method_ordering();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_local_interfaces();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_transitive_interfaces();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_fields();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_constants();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_class_loader();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_protection_domain();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_signers();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_source_file_name();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_source_debug_extension();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_inner_classes();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_implementors();
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  for (int i = 0; i < instanceKlass::implementors_limit; i++) {
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    if (mr.contains(&adr[i])) blk->do_oop(&adr[i]);
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  }
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  adr = ik->adr_generic_signature();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_class_annotations();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_fields_annotations();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_methods_annotations();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_methods_parameter_annotations();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  adr = ik->adr_methods_default_annotations();
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  if (mr.contains(adr)) blk->do_oop(adr);
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  klassKlass::oop_oop_iterate_m(obj, blk, mr);
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  if(ik->oop_map_cache() != NULL) ik->oop_map_cache()->oop_iterate(blk, mr);
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  return size;
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}
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int instanceKlassKlass::oop_adjust_pointers(oop obj) {
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  assert(obj->is_klass(),"must be a klass");
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  assert(klassOop(obj)->klass_part()->oop_is_instance_slow(), "must be instance klass");
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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  ik->adjust_static_fields();
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  ik->vtable()->oop_adjust_pointers();
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  ik->itable()->oop_adjust_pointers();
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  MarkSweep::adjust_pointer(ik->adr_array_klasses());
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  MarkSweep::adjust_pointer(ik->adr_methods());
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  MarkSweep::adjust_pointer(ik->adr_method_ordering());
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  MarkSweep::adjust_pointer(ik->adr_local_interfaces());
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  MarkSweep::adjust_pointer(ik->adr_transitive_interfaces());
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  MarkSweep::adjust_pointer(ik->adr_fields());
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  MarkSweep::adjust_pointer(ik->adr_constants());
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  MarkSweep::adjust_pointer(ik->adr_class_loader());
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  MarkSweep::adjust_pointer(ik->adr_protection_domain());
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  MarkSweep::adjust_pointer(ik->adr_signers());
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  MarkSweep::adjust_pointer(ik->adr_source_file_name());
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  MarkSweep::adjust_pointer(ik->adr_source_debug_extension());
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  MarkSweep::adjust_pointer(ik->adr_inner_classes());
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  for (int i = 0; i < instanceKlass::implementors_limit; i++) {
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    MarkSweep::adjust_pointer(&ik->adr_implementors()[i]);
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  }
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  MarkSweep::adjust_pointer(ik->adr_generic_signature());
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  MarkSweep::adjust_pointer(ik->adr_class_annotations());
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  MarkSweep::adjust_pointer(ik->adr_fields_annotations());
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  MarkSweep::adjust_pointer(ik->adr_methods_annotations());
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  MarkSweep::adjust_pointer(ik->adr_methods_parameter_annotations());
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  MarkSweep::adjust_pointer(ik->adr_methods_default_annotations());
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  iterate_c_heap_oops(ik, &MarkSweep::adjust_root_pointer_closure);
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  return klassKlass::oop_adjust_pointers(obj);
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}
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#ifndef SERIALGC
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void instanceKlassKlass::oop_copy_contents(PSPromotionManager* pm, oop obj) {
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  assert(!pm->depth_first(), "invariant");
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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  ik->copy_static_fields(pm);
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  oop* loader_addr = ik->adr_class_loader();
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  if (PSScavenge::should_scavenge(loader_addr)) {
1
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    pm->claim_or_forward_breadth(loader_addr);
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  }
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  oop* pd_addr = ik->adr_protection_domain();
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  if (PSScavenge::should_scavenge(pd_addr)) {
1
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    pm->claim_or_forward_breadth(pd_addr);
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  }
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  oop* sg_addr = ik->adr_signers();
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  if (PSScavenge::should_scavenge(sg_addr)) {
1
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    pm->claim_or_forward_breadth(sg_addr);
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  }
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  klassKlass::oop_copy_contents(pm, obj);
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}
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void instanceKlassKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
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  assert(pm->depth_first(), "invariant");
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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  ik->push_static_fields(pm);
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  oop* loader_addr = ik->adr_class_loader();
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  if (PSScavenge::should_scavenge(loader_addr)) {
1
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    pm->claim_or_forward_depth(loader_addr);
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  }
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  oop* pd_addr = ik->adr_protection_domain();
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  if (PSScavenge::should_scavenge(pd_addr)) {
1
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    pm->claim_or_forward_depth(pd_addr);
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  }
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  oop* sg_addr = ik->adr_signers();
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  if (PSScavenge::should_scavenge(sg_addr)) {
1
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    pm->claim_or_forward_depth(sg_addr);
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  }
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  klassKlass::oop_copy_contents(pm, obj);
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}
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int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
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  assert(obj->is_klass(),"must be a klass");
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  assert(klassOop(obj)->klass_part()->oop_is_instance_slow(),
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         "must be instance klass");
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   333
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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  ik->update_static_fields();
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  ik->vtable()->oop_update_pointers(cm);
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  ik->itable()->oop_update_pointers(cm);
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  oop* const beg_oop = ik->oop_block_beg();
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  oop* const end_oop = ik->oop_block_end();
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  for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) {
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    PSParallelCompact::adjust_pointer(cur_oop);
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  }
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  OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure();
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  iterate_c_heap_oops(ik, closure);
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   347
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  klassKlass::oop_update_pointers(cm, obj);
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  return ik->object_size();
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}
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int instanceKlassKlass::oop_update_pointers(ParCompactionManager* cm, oop obj,
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                                            HeapWord* beg_addr,
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                                            HeapWord* end_addr) {
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  assert(obj->is_klass(),"must be a klass");
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   356
  assert(klassOop(obj)->klass_part()->oop_is_instance_slow(),
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   357
         "must be instance klass");
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   358
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  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
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   360
  ik->update_static_fields(beg_addr, end_addr);
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   361
  ik->vtable()->oop_update_pointers(cm, beg_addr, end_addr);
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  ik->itable()->oop_update_pointers(cm, beg_addr, end_addr);
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   363
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   364
  oop* const beg_oop = MAX2((oop*)beg_addr, ik->oop_block_beg());
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parents:
diff changeset
   365
  oop* const end_oop = MIN2((oop*)end_addr, ik->oop_block_end());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   366
  for (oop* cur_oop = beg_oop; cur_oop < end_oop; ++cur_oop) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   367
    PSParallelCompact::adjust_pointer(cur_oop);
489c9b5090e2 Initial load
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parents:
diff changeset
   368
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
  // The oop_map_cache, jni_ids and jni_id_map are allocated from the C heap,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
  // and so don't lie within any 'Chunk' boundaries.  Update them when the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
  // lowest addressed oop in the instanceKlass 'oop_block' is updated.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
  if (beg_oop == ik->oop_block_beg()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
    OopClosure* closure = PSParallelCompact::adjust_root_pointer_closure();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
    iterate_c_heap_oops(ik, closure);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   376
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   377
489c9b5090e2 Initial load
duke
parents:
diff changeset
   378
  klassKlass::oop_update_pointers(cm, obj, beg_addr, end_addr);
489c9b5090e2 Initial load
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parents:
diff changeset
   379
  return ik->object_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   380
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   381
#endif // SERIALGC
489c9b5090e2 Initial load
duke
parents:
diff changeset
   382
489c9b5090e2 Initial load
duke
parents:
diff changeset
   383
klassOop instanceKlassKlass::allocate_instance_klass(int vtable_len, int itable_len, int static_field_size,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   384
                                                     int nonstatic_oop_map_size, ReferenceType rt, TRAPS) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   385
489c9b5090e2 Initial load
duke
parents:
diff changeset
   386
  int size = instanceKlass::object_size(align_object_offset(vtable_len) + align_object_offset(itable_len) + static_field_size + nonstatic_oop_map_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
489c9b5090e2 Initial load
duke
parents:
diff changeset
   388
  // Allocation
489c9b5090e2 Initial load
duke
parents:
diff changeset
   389
  KlassHandle h_this_klass(THREAD, as_klassOop());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
  KlassHandle k;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
  if (rt == REF_NONE) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   392
    // regular klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
   393
    instanceKlass o;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   394
    k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
    // reference klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
    instanceRefKlass o;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
    k = base_create_klass(h_this_klass, size, o.vtbl_value(), CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   400
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   401
    No_Safepoint_Verifier no_safepoint; // until k becomes parsable
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
    instanceKlass* ik = (instanceKlass*) k()->klass_part();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   403
    assert(!k()->is_parsable(), "not expecting parsability yet.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
    // The sizes of these these three variables are used for determining the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   406
    // size of the instanceKlassOop. It is critical that these are set to the right
489c9b5090e2 Initial load
duke
parents:
diff changeset
   407
    // sizes before the first GC, i.e., when we allocate the mirror.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   408
    ik->set_vtable_length(vtable_len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   409
    ik->set_itable_length(itable_len);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   410
    ik->set_static_field_size(static_field_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   411
    ik->set_nonstatic_oop_map_size(nonstatic_oop_map_size);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
    assert(k()->size() == size, "wrong size for object");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   413
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
    ik->set_array_klasses(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
    ik->set_methods(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
    ik->set_method_ordering(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
    ik->set_local_interfaces(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
    ik->set_transitive_interfaces(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   419
    ik->init_implementor();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   420
    ik->set_fields(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
    ik->set_constants(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
    ik->set_class_loader(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
    ik->set_protection_domain(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
    ik->set_signers(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
    ik->set_source_file_name(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
    ik->set_source_debug_extension(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
    ik->set_inner_classes(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
    ik->set_static_oop_field_size(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
    ik->set_nonstatic_field_size(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
    ik->set_is_marked_dependent(false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
    ik->set_init_state(instanceKlass::allocated);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
    ik->set_init_thread(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
    ik->set_reference_type(rt);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
    ik->set_oop_map_cache(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   435
    ik->set_jni_ids(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
    ik->set_osr_nmethods_head(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
    ik->set_breakpoints(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   438
    ik->init_previous_versions();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   439
    ik->set_generic_signature(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
    ik->release_set_methods_jmethod_ids(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
    ik->release_set_methods_cached_itable_indices(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
    ik->set_class_annotations(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   443
    ik->set_fields_annotations(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   444
    ik->set_methods_annotations(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
    ik->set_methods_parameter_annotations(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
    ik->set_methods_default_annotations(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
    ik->set_enclosing_method_indices(0, 0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
    ik->set_jvmti_cached_class_field_map(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   449
    ik->set_initial_method_idnum(0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
    assert(k()->is_parsable(), "should be parsable here.");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   451
489c9b5090e2 Initial load
duke
parents:
diff changeset
   452
    // initialize the non-header words to zero
489c9b5090e2 Initial load
duke
parents:
diff changeset
   453
    intptr_t* p = (intptr_t*)k();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   454
    for (int index = instanceKlass::header_size(); index < size; index++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
      p[index] = NULL_WORD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
    // To get verify to work - must be set to partial loaded before first GC point.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
    k()->set_partially_loaded();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
489c9b5090e2 Initial load
duke
parents:
diff changeset
   462
  // GC can happen here
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
  java_lang_Class::create_mirror(k, CHECK_NULL); // Allocate mirror
489c9b5090e2 Initial load
duke
parents:
diff changeset
   464
  return k();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
489c9b5090e2 Initial load
duke
parents:
diff changeset
   467
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
// Printing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
static const char* state_names[] = {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  "unparseable_by_gc", "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error"
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
void instanceKlassKlass::oop_print_on(oop obj, outputStream* st) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
  assert(obj->is_klass(), "must be klass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
  klassKlass::oop_print_on(obj, st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
  st->print(" - instance size:     %d", ik->size_helper());                        st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
  st->print(" - klass size:        %d", ik->object_size());                        st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
  st->print(" - access:            "); ik->access_flags().print_on(st);            st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  st->print(" - state:             "); st->print_cr(state_names[ik->_init_state]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  st->print(" - name:              "); ik->name()->print_value_on(st);             st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
  st->print(" - super:             "); ik->super()->print_value_on(st);            st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
  st->print(" - sub:               ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
  Klass* sub = ik->subklass();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  int n;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
  for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
    if (n < MaxSubklassPrintSize) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
      sub->as_klassOop()->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
      st->print("   ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
  if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
  st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
  if (ik->is_interface()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
    st->print_cr(" - nof implementors:  %d", ik->nof_implementors());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
    int print_impl = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
    for (int i = 0; i < instanceKlass::implementors_limit; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
      if (ik->implementor(i) != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
        if (++print_impl == 1)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
          st->print_cr(" - implementor:    ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
        st->print("   ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
        ik->implementor(i)->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
    if (print_impl > 0)  st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
  st->print(" - arrays:            "); ik->array_klasses()->print_value_on(st);     st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
  st->print(" - methods:           "); ik->methods()->print_value_on(st);           st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
  if (Verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
    objArrayOop methods = ik->methods();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
    for(int i = 0; i < methods->length(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
      tty->print("%d : ", i); methods->obj_at(i)->print_value(); tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
  st->print(" - method ordering:   "); ik->method_ordering()->print_value_on(st);       st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
  st->print(" - local interfaces:  "); ik->local_interfaces()->print_value_on(st);      st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
  st->print(" - trans. interfaces: "); ik->transitive_interfaces()->print_value_on(st); st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
  st->print(" - constants:         "); ik->constants()->print_value_on(st);         st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  st->print(" - class loader:      "); ik->class_loader()->print_value_on(st);      st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
  st->print(" - protection domain: "); ik->protection_domain()->print_value_on(st); st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
  st->print(" - signers:           "); ik->signers()->print_value_on(st);           st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
  if (ik->source_file_name() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
    st->print(" - source file:       ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
    ik->source_file_name()->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
    st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
  if (ik->source_debug_extension() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
    st->print(" - source debug extension:       ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
    ik->source_debug_extension()->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
    st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
  st->print_cr(" - previous version:       ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
    // PreviousVersionInfo objects returned via PreviousVersionWalker
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
    // contain a GrowableArray of handles. We have to clean up the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
    // GrowableArray _after_ the PreviousVersionWalker destructor
489c9b5090e2 Initial load
duke
parents:
diff changeset
   547
    // has destroyed the handles.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
      PreviousVersionWalker pvw(ik);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
      for (PreviousVersionInfo * pv_info = pvw.next_previous_version();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
           pv_info != NULL; pv_info = pvw.next_previous_version()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
        pv_info->prev_constant_pool_handle()()->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
      st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
    } // pvw is cleaned up
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
  } // rm is cleaned up
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
  if (ik->generic_signature() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
    st->print(" - generic signature:            ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
    ik->generic_signature()->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
  st->print(" - inner classes:     "); ik->inner_classes()->print_value_on(st);     st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   563
  st->print(" - java mirror:       "); ik->java_mirror()->print_value_on(st);       st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   564
  st->print(" - vtable length      %d  (start addr: " INTPTR_FORMAT ")", ik->vtable_length(), ik->start_of_vtable());  st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
  st->print(" - itable length      %d (start addr: " INTPTR_FORMAT ")", ik->itable_length(), ik->start_of_itable()); st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   566
  st->print_cr(" - static fields:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
  FieldPrinter print_static_field(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
  ik->do_local_static_fields(&print_static_field);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   569
  st->print_cr(" - non-static fields:");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
  FieldPrinter print_nonstatic_field(st, obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
  ik->do_nonstatic_fields(&print_nonstatic_field);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   572
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
  st->print(" - static oop maps:     ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  if (ik->static_oop_field_size() > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
    int first_offset = ik->offset_of_static_fields();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
    st->print("%d-%d", first_offset, first_offset + ik->static_oop_field_size() - 1);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
  st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
  st->print(" - non-static oop maps: ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
  OopMapBlock* map     = ik->start_of_nonstatic_oop_maps();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   582
  OopMapBlock* end_map = map + ik->nonstatic_oop_map_size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
  while (map < end_map) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
    st->print("%d-%d ", map->offset(), map->offset() + oopSize*(map->length() - 1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
    map++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
  st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
void instanceKlassKlass::oop_print_value_on(oop obj, outputStream* st) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
  assert(obj->is_klass(), "must be klass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
  ik->name()->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
#endif // PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
const char* instanceKlassKlass::internal_name() const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
  return "{instance class}";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
// Verification
489c9b5090e2 Initial load
duke
parents:
diff changeset
   604
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
class VerifyFieldClosure: public OopClosure {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   606
 protected:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   607
  template <class T> void do_oop_work(T* p) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
    guarantee(Universe::heap()->is_in(p), "should be in heap");
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   609
    oop obj = oopDesc::load_decode_heap_oop(p);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   610
    guarantee(obj->is_oop_or_null(), "should be in heap");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  }
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   612
 public:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   613
  virtual void do_oop(oop* p)       { VerifyFieldClosure::do_oop_work(p); }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 1
diff changeset
   614
  virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
void instanceKlassKlass::oop_verify_on(oop obj, outputStream* st) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   618
  klassKlass::oop_verify_on(obj, st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   619
  if (!obj->partially_loaded()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   620
    Thread *thread = Thread::current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   621
    instanceKlass* ik = instanceKlass::cast(klassOop(obj));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   624
    // Avoid redundant verifies
489c9b5090e2 Initial load
duke
parents:
diff changeset
   625
    if (ik->_verify_count == Universe::verify_count()) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
    ik->_verify_count = Universe::verify_count();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
    // Verify that klass is present in SystemDictionary
489c9b5090e2 Initial load
duke
parents:
diff changeset
   629
    if (ik->is_loaded()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   630
      symbolHandle h_name (thread, ik->name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   631
      Handle h_loader (thread, ik->class_loader());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
      Handle h_obj(thread, obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
      SystemDictionary::verify_obj_klass_present(h_obj, h_name, h_loader);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
489c9b5090e2 Initial load
duke
parents:
diff changeset
   636
    // Verify static fields
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
    VerifyFieldClosure blk;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   638
    ik->iterate_static_fields(&blk);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   639
489c9b5090e2 Initial load
duke
parents:
diff changeset
   640
    // Verify vtables
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
    if (ik->is_linked()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
      ResourceMark rm(thread);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
      // $$$ This used to be done only for m/s collections.  Doing it
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
      // always seemed a valid generalization.  (DLD -- 6/00)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
      ik->vtable()->verify(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
    // Verify oop map cache
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
    if (ik->oop_map_cache() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
      ik->oop_map_cache()->verify();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
    // Verify first subklass
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
    if (ik->subklass_oop() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
      guarantee(ik->subklass_oop()->is_perm(),  "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
      guarantee(ik->subklass_oop()->is_klass(), "should be klass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
    // Verify siblings
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
    klassOop super = ik->super();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
    Klass* sib = ik->next_sibling();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
    int sib_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
    while (sib != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
      if (sib == ik) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
        fatal1("subclass cycle of length %d", sib_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
      if (sib_count >= 100000) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
        fatal1("suspiciously long subclass list %d", sib_count);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
      guarantee(sib->as_klassOop()->is_klass(), "should be klass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
      guarantee(sib->as_klassOop()->is_perm(),  "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
      guarantee(sib->super() == super, "siblings should have same superklass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
      sib = sib->next_sibling();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
    // Verify implementor fields
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
    bool saw_null_impl = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
    for (int i = 0; i < instanceKlass::implementors_limit; i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
      klassOop im = ik->implementor(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
      if (im == NULL) { saw_null_impl = true; continue; }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
      guarantee(!saw_null_impl, "non-nulls must preceded all nulls");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
      guarantee(ik->is_interface(), "only interfaces should have implementor set");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
      guarantee(i < ik->nof_implementors(), "should only have one implementor");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
      guarantee(im->is_perm(),  "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
      guarantee(im->is_klass(), "should be klass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
      guarantee(!Klass::cast(klassOop(im))->is_interface(), "implementors cannot be interfaces");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
    // Verify local interfaces
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
    objArrayOop local_interfaces = ik->local_interfaces();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
    guarantee(local_interfaces->is_perm(),          "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
    guarantee(local_interfaces->is_objArray(),      "should be obj array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
    int j;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
    for (j = 0; j < local_interfaces->length(); j++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
      oop e = local_interfaces->obj_at(j);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
      guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid local interface");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
    // Verify transitive interfaces
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
    objArrayOop transitive_interfaces = ik->transitive_interfaces();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
    guarantee(transitive_interfaces->is_perm(),          "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
    guarantee(transitive_interfaces->is_objArray(),      "should be obj array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
    for (j = 0; j < transitive_interfaces->length(); j++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
      oop e = transitive_interfaces->obj_at(j);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
      guarantee(e->is_klass() && Klass::cast(klassOop(e))->is_interface(), "invalid transitive interface");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
    // Verify methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
    objArrayOop methods = ik->methods();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
    guarantee(methods->is_perm(),              "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
    guarantee(methods->is_objArray(),          "should be obj array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
    for (j = 0; j < methods->length(); j++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
      guarantee(methods->obj_at(j)->is_method(), "non-method in methods array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
    for (j = 0; j < methods->length() - 1; j++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   716
      methodOop m1 = methodOop(methods->obj_at(j));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   717
      methodOop m2 = methodOop(methods->obj_at(j + 1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   718
      guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   719
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   720
489c9b5090e2 Initial load
duke
parents:
diff changeset
   721
    // Verify method ordering
489c9b5090e2 Initial load
duke
parents:
diff changeset
   722
    typeArrayOop method_ordering = ik->method_ordering();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   723
    guarantee(method_ordering->is_perm(),              "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
    guarantee(method_ordering->is_typeArray(),         "should be type array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
    int length = method_ordering->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
    if (JvmtiExport::can_maintain_original_method_order()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   727
      guarantee(length == methods->length(),           "invalid method ordering length");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
      jlong sum = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
      for (j = 0; j < length; j++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
        int original_index = method_ordering->int_at(j);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
        guarantee(original_index >= 0 && original_index < length, "invalid method ordering index");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
        sum += original_index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
      // Verify sum of indices 0,1,...,length-1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
      guarantee(sum == ((jlong)length*(length-1))/2,   "invalid method ordering sum");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
      guarantee(length == 0,                           "invalid method ordering length");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
    // Verify JNI static field identifiers
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
    if (ik->jni_ids() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
      ik->jni_ids()->verify(ik->as_klassOop());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
    // Verify other fields
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
    if (ik->array_klasses() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
      guarantee(ik->array_klasses()->is_perm(),      "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
      guarantee(ik->array_klasses()->is_klass(),     "should be klass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
    guarantee(ik->fields()->is_perm(),               "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
    guarantee(ik->fields()->is_typeArray(),          "should be type array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
    guarantee(ik->constants()->is_perm(),            "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
    guarantee(ik->constants()->is_constantPool(),    "should be constant pool");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
    guarantee(ik->inner_classes()->is_perm(),        "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
    guarantee(ik->inner_classes()->is_typeArray(),   "should be type array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
    if (ik->source_file_name() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
      guarantee(ik->source_file_name()->is_perm(),   "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
      guarantee(ik->source_file_name()->is_symbol(), "should be symbol");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
    if (ik->source_debug_extension() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
      guarantee(ik->source_debug_extension()->is_perm(),   "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
      guarantee(ik->source_debug_extension()->is_symbol(), "should be symbol");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
    if (ik->protection_domain() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
      guarantee(ik->protection_domain()->is_oop(),  "should be oop");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
    if (ik->signers() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
      guarantee(ik->signers()->is_objArray(),       "should be obj array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
    if (ik->generic_signature() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
      guarantee(ik->generic_signature()->is_perm(),   "should be in permspace");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
      guarantee(ik->generic_signature()->is_symbol(), "should be symbol");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   774
    if (ik->class_annotations() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
      guarantee(ik->class_annotations()->is_typeArray(), "should be type array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
    if (ik->fields_annotations() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
      guarantee(ik->fields_annotations()->is_objArray(), "should be obj array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
    if (ik->methods_annotations() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
      guarantee(ik->methods_annotations()->is_objArray(), "should be obj array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
    if (ik->methods_parameter_annotations() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
      guarantee(ik->methods_parameter_annotations()->is_objArray(), "should be obj array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
    if (ik->methods_default_annotations() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
      guarantee(ik->methods_default_annotations()->is_objArray(), "should be obj array");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
bool instanceKlassKlass::oop_partially_loaded(oop obj) const {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
  assert(obj->is_klass(), "object must be klass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
  assert(ik->oop_is_instance(), "object must be instanceKlass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
  return ik->transitive_interfaces() == (objArrayOop) obj;   // Check whether transitive_interfaces points to self
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
// The transitive_interfaces is the last field set when loading an object.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
void instanceKlassKlass::oop_set_partially_loaded(oop obj) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
  assert(obj->is_klass(), "object must be klass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
  instanceKlass* ik = instanceKlass::cast(klassOop(obj));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
  // Set the layout helper to a place-holder value, until fuller initialization.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
  // (This allows asserts in oop_is_instance to succeed.)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
  ik->set_layout_helper(Klass::instance_layout_helper(0, true));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
  assert(ik->oop_is_instance(), "object must be instanceKlass");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
  assert(ik->transitive_interfaces() == NULL, "just checking");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
  ik->set_transitive_interfaces((objArrayOop) obj);   // Temporarily set transitive_interfaces to point to self
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
}