hotspot/src/share/vm/oops/instanceKlass.cpp
author coleenp
Wed, 21 May 2014 14:36:18 -0400
changeset 24658 e41df2fc6e87
parent 24424 2658d7834c6e
child 24828 dd5406c950a1
permissions -rw-r--r--
8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*)) Summary: Only walk methods in instanceklass if the class is loaded Reviewed-by: dholmes, fparain
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/*
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 * Copyright (c) 1997, 2014, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "classfile/javaClasses.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/verifier.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "compiler/compileBroker.hpp"
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#include "gc_implementation/shared/markSweep.inline.hpp"
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#include "gc_interface/collectedHeap.inline.hpp"
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#include "interpreter/oopMapCache.hpp"
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#include "interpreter/rewriter.hpp"
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#include "jvmtifiles/jvmti.h"
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#include "memory/genOopClosures.inline.hpp"
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#include "memory/heapInspection.hpp"
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#include "memory/metadataFactory.hpp"
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#include "memory/oopFactory.hpp"
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#include "oops/fieldStreams.hpp"
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#include "oops/instanceClassLoaderKlass.hpp"
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#include "oops/instanceKlass.hpp"
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#include "oops/instanceMirrorKlass.hpp"
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#include "oops/instanceOop.hpp"
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#include "oops/klass.inline.hpp"
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#include "oops/method.hpp"
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#include "oops/oop.inline.hpp"
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#include "oops/symbol.hpp"
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#include "prims/jvmtiExport.hpp"
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#include "prims/jvmtiRedefineClassesTrace.hpp"
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#include "prims/jvmtiRedefineClasses.hpp"
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#include "prims/jvmtiThreadState.hpp"
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#include "prims/methodComparator.hpp"
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#include "runtime/fieldDescriptor.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/javaCalls.hpp"
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#include "runtime/mutexLocker.hpp"
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#include "runtime/orderAccess.inline.hpp"
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#include "runtime/thread.inline.hpp"
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#include "services/classLoadingService.hpp"
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#include "services/threadService.hpp"
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#include "utilities/dtrace.hpp"
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#include "utilities/macros.hpp"
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#if INCLUDE_ALL_GCS
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#include "gc_implementation/concurrentMarkSweep/cmsOopClosures.inline.hpp"
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#include "gc_implementation/g1/g1CollectedHeap.inline.hpp"
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#include "gc_implementation/g1/g1OopClosures.inline.hpp"
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#include "gc_implementation/g1/g1RemSet.inline.hpp"
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#include "gc_implementation/g1/heapRegionSeq.inline.hpp"
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#include "gc_implementation/parNew/parOopClosures.inline.hpp"
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#include "gc_implementation/parallelScavenge/parallelScavengeHeap.inline.hpp"
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#include "gc_implementation/parallelScavenge/psPromotionManager.inline.hpp"
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#include "gc_implementation/parallelScavenge/psScavenge.inline.hpp"
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#include "oops/oop.pcgc.inline.hpp"
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#endif // INCLUDE_ALL_GCS
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#ifdef COMPILER1
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#include "c1/c1_Compiler.hpp"
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#endif
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PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
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#ifdef DTRACE_ENABLED
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#define HOTSPOT_CLASS_INITIALIZATION_required HOTSPOT_CLASS_INITIALIZATION_REQUIRED
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#define HOTSPOT_CLASS_INITIALIZATION_recursive HOTSPOT_CLASS_INITIALIZATION_RECURSIVE
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#define HOTSPOT_CLASS_INITIALIZATION_concurrent HOTSPOT_CLASS_INITIALIZATION_CONCURRENT
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#define HOTSPOT_CLASS_INITIALIZATION_erroneous HOTSPOT_CLASS_INITIALIZATION_ERRONEOUS
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#define HOTSPOT_CLASS_INITIALIZATION_super__failed HOTSPOT_CLASS_INITIALIZATION_SUPER_FAILED
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#define HOTSPOT_CLASS_INITIALIZATION_clinit HOTSPOT_CLASS_INITIALIZATION_CLINIT
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#define HOTSPOT_CLASS_INITIALIZATION_error HOTSPOT_CLASS_INITIALIZATION_ERROR
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#define HOTSPOT_CLASS_INITIALIZATION_end HOTSPOT_CLASS_INITIALIZATION_END
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#define DTRACE_CLASSINIT_PROBE(type, clss, thread_type)          \
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  {                                                              \
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    char* data = NULL;                                           \
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    int len = 0;                                                 \
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    Symbol* name = (clss)->name();                               \
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    if (name != NULL) {                                          \
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      data = (char*)name->bytes();                               \
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      len = name->utf8_length();                                 \
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    }                                                            \
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    HOTSPOT_CLASS_INITIALIZATION_##type(                         \
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      data, len, (clss)->class_loader(), thread_type);           \
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  }
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#define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait) \
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  {                                                              \
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    char* data = NULL;                                           \
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    int len = 0;                                                 \
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    Symbol* name = (clss)->name();                               \
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    if (name != NULL) {                                          \
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      data = (char*)name->bytes();                               \
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      len = name->utf8_length();                                 \
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    }                                                            \
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    HOTSPOT_CLASS_INITIALIZATION_##type(                         \
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      data, len, (clss)->class_loader(), thread_type, wait);     \
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  }
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#else //  ndef DTRACE_ENABLED
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#define DTRACE_CLASSINIT_PROBE(type, clss, thread_type)
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#define DTRACE_CLASSINIT_PROBE_WAIT(type, clss, thread_type, wait)
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#endif //  ndef DTRACE_ENABLED
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volatile int InstanceKlass::_total_instanceKlass_count = 0;
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InstanceKlass* InstanceKlass::allocate_instance_klass(
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                                              ClassLoaderData* loader_data,
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                                              int vtable_len,
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                                              int itable_len,
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                                              int static_field_size,
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                                              int nonstatic_oop_map_size,
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                                              ReferenceType rt,
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                                              AccessFlags access_flags,
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                                              Symbol* name,
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                                              Klass* super_klass,
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                                              bool is_anonymous,
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                                              TRAPS) {
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  int size = InstanceKlass::size(vtable_len, itable_len, nonstatic_oop_map_size,
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                                 access_flags.is_interface(), is_anonymous);
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  // Allocation
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  InstanceKlass* ik;
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  if (rt == REF_NONE) {
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    if (name == vmSymbols::java_lang_Class()) {
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      ik = new (loader_data, size, THREAD) InstanceMirrorKlass(
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        vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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        access_flags, is_anonymous);
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    } else if (name == vmSymbols::java_lang_ClassLoader() ||
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          (SystemDictionary::ClassLoader_klass_loaded() &&
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          super_klass != NULL &&
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          super_klass->is_subtype_of(SystemDictionary::ClassLoader_klass()))) {
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      ik = new (loader_data, size, THREAD) InstanceClassLoaderKlass(
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        vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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        access_flags, is_anonymous);
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    } else {
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      // normal class
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      ik = new (loader_data, size, THREAD) InstanceKlass(
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        vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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        access_flags, is_anonymous);
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    }
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  } else {
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    // reference klass
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    ik = new (loader_data, size, THREAD) InstanceRefKlass(
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        vtable_len, itable_len, static_field_size, nonstatic_oop_map_size, rt,
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        access_flags, is_anonymous);
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  }
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  // Check for pending exception before adding to the loader data and incrementing
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  // class count.  Can get OOM here.
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  if (HAS_PENDING_EXCEPTION) {
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    return NULL;
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  }
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  // Add all classes to our internal class loader list here,
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  // including classes in the bootstrap (NULL) class loader.
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  loader_data->add_class(ik);
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  Atomic::inc(&_total_instanceKlass_count);
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  return ik;
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}
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// copy method ordering from resource area to Metaspace
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void InstanceKlass::copy_method_ordering(intArray* m, TRAPS) {
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  if (m != NULL) {
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    // allocate a new array and copy contents (memcpy?)
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    _method_ordering = MetadataFactory::new_array<int>(class_loader_data(), m->length(), CHECK);
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    for (int i = 0; i < m->length(); i++) {
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      _method_ordering->at_put(i, m->at(i));
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    }
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  } else {
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    _method_ordering = Universe::the_empty_int_array();
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  }
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}
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// create a new array of vtable_indices for default methods
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Array<int>* InstanceKlass::create_new_default_vtable_indices(int len, TRAPS) {
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  Array<int>* vtable_indices = MetadataFactory::new_array<int>(class_loader_data(), len, CHECK_NULL);
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  assert(default_vtable_indices() == NULL, "only create once");
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  set_default_vtable_indices(vtable_indices);
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  return vtable_indices;
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}
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InstanceKlass::InstanceKlass(int vtable_len,
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                             int itable_len,
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                             int static_field_size,
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                             int nonstatic_oop_map_size,
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                             ReferenceType rt,
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                             AccessFlags access_flags,
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                             bool is_anonymous) {
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  No_Safepoint_Verifier no_safepoint; // until k becomes parsable
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  int iksize = InstanceKlass::size(vtable_len, itable_len, nonstatic_oop_map_size,
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                                   access_flags.is_interface(), is_anonymous);
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  set_vtable_length(vtable_len);
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  set_itable_length(itable_len);
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  set_static_field_size(static_field_size);
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  set_nonstatic_oop_map_size(nonstatic_oop_map_size);
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  set_access_flags(access_flags);
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  _misc_flags = 0;  // initialize to zero
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  set_is_anonymous(is_anonymous);
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  assert(size() == iksize, "wrong size for object");
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  set_array_klasses(NULL);
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  set_methods(NULL);
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  set_method_ordering(NULL);
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  set_default_methods(NULL);
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  set_default_vtable_indices(NULL);
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  set_local_interfaces(NULL);
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  set_transitive_interfaces(NULL);
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  init_implementor();
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  set_fields(NULL, 0);
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  set_constants(NULL);
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  set_class_loader_data(NULL);
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  set_source_file_name_index(0);
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  set_source_debug_extension(NULL, 0);
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  set_array_name(NULL);
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  set_inner_classes(NULL);
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  set_static_oop_field_count(0);
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  set_nonstatic_field_size(0);
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  set_is_marked_dependent(false);
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  set_init_state(InstanceKlass::allocated);
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  set_init_thread(NULL);
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  set_reference_type(rt);
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  set_oop_map_cache(NULL);
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  set_jni_ids(NULL);
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  set_osr_nmethods_head(NULL);
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  set_breakpoints(NULL);
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  init_previous_versions();
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  set_generic_signature_index(0);
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  release_set_methods_jmethod_ids(NULL);
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  set_annotations(NULL);
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  set_jvmti_cached_class_field_map(NULL);
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  set_initial_method_idnum(0);
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  _dependencies = NULL;
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  set_jvmti_cached_class_field_map(NULL);
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  set_cached_class_file(NULL);
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  set_initial_method_idnum(0);
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  set_minor_version(0);
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  set_major_version(0);
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  NOT_PRODUCT(_verify_count = 0;)
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  // initialize the non-header words to zero
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  intptr_t* p = (intptr_t*)this;
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  for (int index = InstanceKlass::header_size(); index < iksize; index++) {
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    p[index] = NULL_WORD;
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  }
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  // Set temporary value until parseClassFile updates it with the real instance
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  // size.
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  set_layout_helper(Klass::instance_layout_helper(0, true));
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}
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void InstanceKlass::deallocate_methods(ClassLoaderData* loader_data,
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                                       Array<Method*>* methods) {
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  if (methods != NULL && methods != Universe::the_empty_method_array() &&
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      !methods->is_shared()) {
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    for (int i = 0; i < methods->length(); i++) {
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      Method* method = methods->at(i);
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      if (method == NULL) continue;  // maybe null if error processing
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      // Only want to delete methods that are not executing for RedefineClasses.
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      // The previous version will point to them so they're not totally dangling
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      assert (!method->on_stack(), "shouldn't be called with methods on stack");
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      MetadataFactory::free_metadata(loader_data, method);
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    }
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    MetadataFactory::free_array<Method*>(loader_data, methods);
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  }
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}
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void InstanceKlass::deallocate_interfaces(ClassLoaderData* loader_data,
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                                          Klass* super_klass,
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                                          Array<Klass*>* local_interfaces,
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                                          Array<Klass*>* transitive_interfaces) {
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  // Only deallocate transitive interfaces if not empty, same as super class
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  // or same as local interfaces.  See code in parseClassFile.
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  Array<Klass*>* ti = transitive_interfaces;
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  if (ti != Universe::the_empty_klass_array() && ti != local_interfaces) {
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    // check that the interfaces don't come from super class
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    Array<Klass*>* sti = (super_klass == NULL) ? NULL :
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                    InstanceKlass::cast(super_klass)->transitive_interfaces();
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    if (ti != sti && ti != NULL && !ti->is_shared()) {
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      MetadataFactory::free_array<Klass*>(loader_data, ti);
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   308
    }
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  }
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  // local interfaces can be empty
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  if (local_interfaces != Universe::the_empty_klass_array() &&
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      local_interfaces != NULL && !local_interfaces->is_shared()) {
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    MetadataFactory::free_array<Klass*>(loader_data, local_interfaces);
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   315
  }
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   316
}
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// This function deallocates the metadata and C heap pointers that the
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// InstanceKlass points to.
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void InstanceKlass::deallocate_contents(ClassLoaderData* loader_data) {
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   321
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  // Orphan the mirror first, CMS thinks it's still live.
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   323
  if (java_mirror() != NULL) {
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   324
    java_lang_Class::set_klass(java_mirror(), NULL);
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   325
  }
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   326
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  // Need to take this class off the class loader data list.
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   328
  loader_data->remove_class(this);
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   329
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  // The array_klass for this class is created later, after error handling.
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  // For class redefinition, we keep the original class so this scratch class
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   332
  // doesn't have an array class.  Either way, assert that there is nothing
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   333
  // to deallocate.
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   334
  assert(array_klasses() == NULL, "array classes shouldn't be created for this class yet");
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   335
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  // Release C heap allocated data that this might point to, which includes
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  // reference counting symbol names.
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  release_C_heap_structures();
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   339
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  deallocate_methods(loader_data, methods());
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  set_methods(NULL);
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   342
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  if (method_ordering() != NULL &&
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      method_ordering() != Universe::the_empty_int_array() &&
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      !method_ordering()->is_shared()) {
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    MetadataFactory::free_array<int>(loader_data, method_ordering());
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   347
  }
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  set_method_ordering(NULL);
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   349
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  // default methods can be empty
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   351
  if (default_methods() != NULL &&
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      default_methods() != Universe::the_empty_method_array() &&
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   353
      !default_methods()->is_shared()) {
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   354
    MetadataFactory::free_array<Method*>(loader_data, default_methods());
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   355
  }
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   356
  // Do NOT deallocate the default methods, they are owned by superinterfaces.
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   357
  set_default_methods(NULL);
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   358
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   359
  // default methods vtable indices can be empty
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   360
  if (default_vtable_indices() != NULL &&
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   361
      !default_vtable_indices()->is_shared()) {
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diff changeset
   362
    MetadataFactory::free_array<int>(loader_data, default_vtable_indices());
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diff changeset
   363
  }
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diff changeset
   364
  set_default_vtable_indices(NULL);
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diff changeset
   365
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diff changeset
   366
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   367
  // This array is in Klass, but remove it with the InstanceKlass since
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   368
  // this place would be the only caller and it can share memory with transitive
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   369
  // interfaces.
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   370
  if (secondary_supers() != NULL &&
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   371
      secondary_supers() != Universe::the_empty_klass_array() &&
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   372
      secondary_supers() != transitive_interfaces() &&
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   373
      !secondary_supers()->is_shared()) {
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   374
    MetadataFactory::free_array<Klass*>(loader_data, secondary_supers());
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   375
  }
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   376
  set_secondary_supers(NULL);
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   377
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   378
  deallocate_interfaces(loader_data, super(), local_interfaces(), transitive_interfaces());
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   379
  set_transitive_interfaces(NULL);
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   380
  set_local_interfaces(NULL);
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   381
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   382
  if (fields() != NULL && !fields()->is_shared()) {
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diff changeset
   383
    MetadataFactory::free_array<jushort>(loader_data, fields());
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diff changeset
   384
  }
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   385
  set_fields(NULL, 0);
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diff changeset
   386
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   387
  // If a method from a redefined class is using this constant pool, don't
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   388
  // delete it, yet.  The new class's previous version will point to this.
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   389
  if (constants() != NULL) {
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   390
    assert (!constants()->on_stack(), "shouldn't be called if anything is onstack");
20684
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diff changeset
   391
    if (!constants()->is_shared()) {
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
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diff changeset
   392
      MetadataFactory::free_metadata(loader_data, constants());
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diff changeset
   393
    }
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   394
    set_constants(NULL);
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diff changeset
   395
  }
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diff changeset
   396
20684
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diff changeset
   397
  if (inner_classes() != NULL &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
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diff changeset
   398
      inner_classes() != Universe::the_empty_short_array() &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
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diff changeset
   399
      !inner_classes()->is_shared()) {
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diff changeset
   400
    MetadataFactory::free_array<jushort>(loader_data, inner_classes());
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diff changeset
   401
  }
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diff changeset
   402
  set_inner_classes(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   403
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
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diff changeset
   404
  // We should deallocate the Annotations instance if it's not in shared spaces.
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
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diff changeset
   405
  if (annotations() != NULL && !annotations()->is_shared()) {
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
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diff changeset
   406
    MetadataFactory::free_metadata(loader_data, annotations());
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
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diff changeset
   407
  }
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diff changeset
   408
  set_annotations(NULL);
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diff changeset
   409
}
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coleenp
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diff changeset
   410
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coleenp
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diff changeset
   411
bool InstanceKlass::should_be_initialized() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   412
  return !is_initialized();
489c9b5090e2 Initial load
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parents:
diff changeset
   413
}
489c9b5090e2 Initial load
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parents:
diff changeset
   414
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   415
klassVtable* InstanceKlass::vtable() const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   416
  return new klassVtable(this, start_of_vtable(), vtable_length() / vtableEntry::size());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   419
klassItable* InstanceKlass::itable() const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   420
  return new klassItable(instanceKlassHandle(this));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   423
void InstanceKlass::eager_initialize(Thread *thread) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
  if (!EagerInitialization) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
489c9b5090e2 Initial load
duke
parents:
diff changeset
   426
  if (this->is_not_initialized()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   427
    // abort if the the class has a class initializer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   428
    if (this->class_initializer() != NULL) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   429
489c9b5090e2 Initial load
duke
parents:
diff changeset
   430
    // abort if it is java.lang.Object (initialization is handled in genesis)
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   431
    Klass* super = this->super();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
    if (super == NULL) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   433
489c9b5090e2 Initial load
duke
parents:
diff changeset
   434
    // abort if the super class should be initialized
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   435
    if (!InstanceKlass::cast(super)->is_initialized()) return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   436
489c9b5090e2 Initial load
duke
parents:
diff changeset
   437
    // call body to expose the this pointer
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   438
    instanceKlassHandle this_k(thread, this);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   439
    eager_initialize_impl(this_k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   440
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   441
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   442
17826
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   443
// JVMTI spec thinks there are signers and protection domain in the
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   444
// instanceKlass.  These accessors pretend these fields are there.
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   445
// The hprof specification also thinks these fields are in InstanceKlass.
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   446
oop InstanceKlass::protection_domain() const {
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   447
  // return the protection_domain from the mirror
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   448
  return java_lang_Class::protection_domain(java_mirror());
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   449
}
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   450
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   451
// To remove these from requires an incompatible change and CCC request.
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   452
objArrayOop InstanceKlass::signers() const {
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   453
  // return the signers from the mirror
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   454
  return java_lang_Class::signers(java_mirror());
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   455
}
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   456
20379
a4c59d30d67d 8025004: -XX:+CheckUnhandledOops asserts for JDK 8 Solaris fastdebug binaries
coleenp
parents: 20284
diff changeset
   457
oop InstanceKlass::init_lock() const {
17826
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   458
  // return the init lock from the mirror
21079
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   459
  oop lock = java_lang_Class::init_lock(java_mirror());
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   460
  assert((oop)lock != NULL || !is_not_initialized(), // initialized or in_error state
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   461
         "only fully initialized state can have a null lock");
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   462
  return lock;
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   463
}
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   464
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   465
// Set the initialization lock to null so the object can be GC'ed.  Any racing
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   466
// threads to get this lock will see a null lock and will not lock.
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   467
// That's okay because they all check for initialized state after getting
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   468
// the lock and return.
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   469
void InstanceKlass::fence_and_clear_init_lock() {
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   470
  // make sure previous stores are all done, notably the init_state.
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   471
  OrderAccess::storestore();
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   472
  java_lang_Class::set_init_lock(java_mirror(), NULL);
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   473
  assert(!is_not_initialized(), "class must be initialized now");
17826
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   474
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   476
void InstanceKlass::eager_initialize_impl(instanceKlassHandle this_k) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
  EXCEPTION_MARK;
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   478
  oop init_lock = this_k->init_lock();
21079
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   479
  ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
  // abort if someone beat us to the initialization
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   482
  if (!this_k->is_not_initialized()) return;  // note: not equivalent to is_initialized()
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   483
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   484
  ClassState old_state = this_k->init_state();
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   485
  link_class_impl(this_k, true, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
  if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
    CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
    // Abort if linking the class throws an exception.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
    // Use a test to avoid redundantly resetting the state if there's
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
    // no change.  Set_init_state() asserts that state changes make
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
    // progress, whereas here we might just be spinning in place.
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   493
    if( old_state != this_k->_init_state )
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   494
      this_k->set_init_state (old_state);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
    // linking successfull, mark class as initialized
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   497
    this_k->set_init_state (fully_initialized);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   498
    this_k->fence_and_clear_init_lock();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
    // trace
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
    if (TraceClassInitialization) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
      ResourceMark rm(THREAD);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   502
      tty->print_cr("[Initialized %s without side effects]", this_k->external_name());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
// See "The Virtual Machine Specification" section 2.16.5 for a detailed explanation of the class initialization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
// process. The step comments refers to the procedure described in that section.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
// Note: implementation moved to static method to expose the this pointer.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   511
void InstanceKlass::initialize(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
  if (this->should_be_initialized()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
    HandleMark hm(THREAD);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   514
    instanceKlassHandle this_k(THREAD, this);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   515
    initialize_impl(this_k, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
    // Note: at this point the class may be initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
    //       OR it may be in the state of being initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
    //       in case of recursive initialization!
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
    assert(is_initialized(), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   525
bool InstanceKlass::verify_code(
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   526
    instanceKlassHandle this_k, bool throw_verifyerror, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  // 1) Verify the bytecodes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
  Verifier::Mode mode =
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
    throw_verifyerror ? Verifier::ThrowException : Verifier::NoException;
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   530
  return Verifier::verify(this_k, mode, this_k->should_verify_class(), CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
// Used exclusively by the shared spaces dump mechanism to prevent
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
// classes mapped into the shared regions in new VMs from appearing linked.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   537
void InstanceKlass::unlink_class() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   538
  assert(is_linked(), "must be linked");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
  _init_state = loaded;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   542
void InstanceKlass::link_class(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
  assert(is_loaded(), "must be loaded");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
  if (!is_linked()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   545
    HandleMark hm(THREAD);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   546
    instanceKlassHandle this_k(THREAD, this);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   547
    link_class_impl(this_k, true, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
// Called to verify that a class can link during initialization, without
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
// throwing a VerifyError.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   553
bool InstanceKlass::link_class_or_fail(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
  assert(is_loaded(), "must be loaded");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
  if (!is_linked()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   556
    HandleMark hm(THREAD);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   557
    instanceKlassHandle this_k(THREAD, this);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   558
    link_class_impl(this_k, false, CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   560
  return is_linked();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   561
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   562
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   563
bool InstanceKlass::link_class_impl(
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   564
    instanceKlassHandle this_k, bool throw_verifyerror, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   565
  // check for error state
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   566
  if (this_k->is_in_error_state()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   567
    ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   568
    THROW_MSG_(vmSymbols::java_lang_NoClassDefFoundError(),
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   569
               this_k->external_name(), false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   570
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   571
  // return if already verified
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   572
  if (this_k->is_linked()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   574
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
  // Timing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
  // timer handles recursion
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
  assert(THREAD->is_Java_thread(), "non-JavaThread in link_class_impl");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
  JavaThread* jt = (JavaThread*)THREAD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
  // link super class before linking this class
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   582
  instanceKlassHandle super(THREAD, this_k->super());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
  if (super.not_null()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
    if (super->is_interface()) {  // check if super class is an interface
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
      ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
      Exceptions::fthrow(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
        THREAD_AND_LOCATION,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   588
        vmSymbols::java_lang_IncompatibleClassChangeError(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
        "class %s has interface %s as super class",
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   590
        this_k->external_name(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
        super->external_name()
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
      );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
    link_class_impl(super, throw_verifyerror, CHECK_false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
  // link all interfaces implemented by this class before linking this class
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   600
  Array<Klass*>* interfaces = this_k->local_interfaces();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   601
  int num_interfaces = interfaces->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
  for (int index = 0; index < num_interfaces; index++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
    HandleMark hm(THREAD);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   604
    instanceKlassHandle ih(THREAD, interfaces->at(index));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
    link_class_impl(ih, throw_verifyerror, CHECK_false);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   607
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  // in case the class is linked in the process of linking its superclasses
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   609
  if (this_k->is_linked()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   613
  // trace only the link time for this klass that includes
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   614
  // the verification time
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   615
  PerfClassTraceTime vmtimer(ClassLoader::perf_class_link_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   616
                             ClassLoader::perf_class_link_selftime(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   617
                             ClassLoader::perf_classes_linked(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   618
                             jt->get_thread_stat()->perf_recursion_counts_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   619
                             jt->get_thread_stat()->perf_timers_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   620
                             PerfClassTraceTime::CLASS_LINK);
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   621
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   622
  // verification & rewriting
489c9b5090e2 Initial load
duke
parents:
diff changeset
   623
  {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   624
    oop init_lock = this_k->init_lock();
21079
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   625
    ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   626
    // rewritten will have been set if loader constraint error found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   627
    // on an earlier link attempt
489c9b5090e2 Initial load
duke
parents:
diff changeset
   628
    // don't verify or rewrite if already rewritten
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   629
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   630
    if (!this_k->is_linked()) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   631
      if (!this_k->is_rewritten()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   632
        {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   633
          // Timer includes any side effects of class verification (resolution,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   634
          // etc), but not recursive entry into verify_code().
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   635
          PerfClassTraceTime timer(ClassLoader::perf_class_verify_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   636
                                   ClassLoader::perf_class_verify_selftime(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   637
                                   ClassLoader::perf_classes_verified(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   638
                                   jt->get_thread_stat()->perf_recursion_counts_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   639
                                   jt->get_thread_stat()->perf_timers_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   640
                                   PerfClassTraceTime::CLASS_VERIFY);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   641
          bool verify_ok = verify_code(this_k, throw_verifyerror, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
          if (!verify_ok) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   643
            return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
        // Just in case a side-effect of verify linked this class already
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
        // (which can sometimes happen since the verifier loads classes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
        // using custom class loaders, which are free to initialize things)
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   650
        if (this_k->is_linked()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
          return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
        // also sets rewritten
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   655
        this_k->rewrite_class(CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   658
      // relocate jsrs and link methods after they are all rewritten
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   659
      this_k->link_methods(CHECK_false);
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   660
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
      // Initialize the vtable and interface table after
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
      // methods have been rewritten since rewrite may
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   663
      // fabricate new Method*s.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
      // also does loader constraint checking
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   665
      if (!this_k()->is_shared()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
        ResourceMark rm(THREAD);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   667
        this_k->vtable()->initialize_vtable(true, CHECK_false);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   668
        this_k->itable()->initialize_itable(true, CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
      else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
        ResourceMark rm(THREAD);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   673
        this_k->vtable()->verify(tty, true);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
        // In case itable verification is ever added.
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   675
        // this_k->itable()->verify(tty, true);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
#endif
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   678
      this_k->set_init_state(linked);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
      if (JvmtiExport::should_post_class_prepare()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
        Thread *thread = THREAD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
        assert(thread->is_Java_thread(), "thread->is_Java_thread()");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   682
        JvmtiExport::post_class_prepare((JavaThread *) thread, this_k());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
// Rewrite the byte codes of all of the methods of a class.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
// The rewriter must be called exactly once. Rewriting must happen after
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
// verification but before the first method of the class is executed.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   693
void InstanceKlass::rewrite_class(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  assert(is_loaded(), "must be loaded");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   695
  instanceKlassHandle this_k(THREAD, this);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   696
  if (this_k->is_rewritten()) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   697
    assert(this_k()->is_shared(), "rewriting an unshared class?");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
  }
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   700
  Rewriter::rewrite(this_k, CHECK);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   701
  this_k->set_rewritten();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   704
// Now relocate and link method entry points after class is rewritten.
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   705
// This is outside is_rewritten flag. In case of an exception, it can be
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   706
// executed more than once.
15099
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   707
void InstanceKlass::link_methods(TRAPS) {
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   708
  int len = methods()->length();
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   709
  for (int i = len-1; i >= 0; i--) {
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   710
    methodHandle m(THREAD, methods()->at(i));
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   711
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   712
    // Set up method entry points for compiler and interpreter    .
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   713
    m->link_method(m, CHECK);
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   714
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   715
    // This is for JVMTI and unrelated to relocator but the last thing we do
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   716
#ifdef ASSERT
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   717
    if (StressMethodComparator) {
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   718
      ResourceMark rm(THREAD);
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   719
      static int nmc = 0;
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   720
      for (int j = i; j >= 0 && j >= i-4; j--) {
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   721
        if ((++nmc % 1000) == 0)  tty->print_cr("Have run MethodComparator %d times...", nmc);
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   722
        bool z = MethodComparator::methods_EMCP(m(),
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   723
                   methods()->at(j));
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   724
        if (j == i && !z) {
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   725
          tty->print("MethodComparator FAIL: "); m->print(); m->print_codes();
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   726
          assert(z, "method must compare equal to itself");
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   727
        }
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   728
      }
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   729
    }
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   730
#endif //ASSERT
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   731
  }
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   732
}
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   733
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   735
void InstanceKlass::initialize_impl(instanceKlassHandle this_k, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
  // Make sure klass is linked (verified) before initialization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
  // A class could already be verified, since it has been reflected upon.
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   738
  this_k->link_class(CHECK);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   739
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   740
  DTRACE_CLASSINIT_PROBE(required, InstanceKlass::cast(this_k()), -1);
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   741
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   742
  bool wait = false;
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   743
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
  // refer to the JVM book page 47 for description of steps
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
  // Step 1
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   746
  {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   747
    oop init_lock = this_k->init_lock();
21079
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   748
    ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
    Thread *self = THREAD; // it's passed the current thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
    // Step 2
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
    // If we were to use wait() instead of waitInterruptibly() then
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
    // we might end up throwing IE from link/symbol resolution sites
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
    // that aren't expected to throw.  This would wreak havoc.  See 6320309.
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   756
    while(this_k->is_being_initialized() && !this_k->is_reentrant_initialization(self)) {
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   757
        wait = true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
      ol.waitUninterruptibly(CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
    // Step 3
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   762
    if (this_k->is_being_initialized() && this_k->is_reentrant_initialization(self)) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   763
      DTRACE_CLASSINIT_PROBE_WAIT(recursive, InstanceKlass::cast(this_k()), -1,wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
      return;
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   765
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
    // Step 4
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   768
    if (this_k->is_initialized()) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   769
      DTRACE_CLASSINIT_PROBE_WAIT(concurrent, InstanceKlass::cast(this_k()), -1,wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
      return;
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   771
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
    // Step 5
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   774
    if (this_k->is_in_error_state()) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   775
      DTRACE_CLASSINIT_PROBE_WAIT(erroneous, InstanceKlass::cast(this_k()), -1,wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
      ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
      const char* desc = "Could not initialize class ";
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   778
      const char* className = this_k->external_name();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
      size_t msglen = strlen(desc) + strlen(className) + 1;
6421
7c02a5af38e7 6980262: Memory leak when exception is thrown in static initializer
kamg
parents: 6248
diff changeset
   780
      char* message = NEW_RESOURCE_ARRAY(char, msglen);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
      if (NULL == message) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
        // Out of memory: can't create detailed error message
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
        THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), className);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
        jio_snprintf(message, msglen, "%s%s", desc, className);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
        THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), message);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
    // Step 6
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   791
    this_k->set_init_state(being_initialized);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   792
    this_k->set_init_thread(self);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
  // Step 7
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   796
  Klass* super_klass = this_k->super();
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   797
  if (super_klass != NULL && !this_k->is_interface() && super_klass->should_be_initialized()) {
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
   798
    super_klass->initialize(THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
    if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
      Handle e(THREAD, PENDING_EXCEPTION);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
      CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
      {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
        EXCEPTION_MARK;
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   805
        this_k->set_initialization_state_and_notify(initialization_error, THREAD); // Locks object, set state, and notify all waiting threads
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
        CLEAR_PENDING_EXCEPTION;   // ignore any exception thrown, superclass initialization error is thrown below
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
      }
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   808
      DTRACE_CLASSINIT_PROBE_WAIT(super__failed, InstanceKlass::cast(this_k()), -1,wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
      THROW_OOP(e());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   813
  if (this_k->has_default_methods()) {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   814
    // Step 7.5: initialize any interfaces which have default methods
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   815
    for (int i = 0; i < this_k->local_interfaces()->length(); ++i) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   816
      Klass* iface = this_k->local_interfaces()->at(i);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   817
      InstanceKlass* ik = InstanceKlass::cast(iface);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   818
      if (ik->has_default_methods() && ik->should_be_initialized()) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   819
        ik->initialize(THREAD);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   820
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   821
        if (HAS_PENDING_EXCEPTION) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   822
          Handle e(THREAD, PENDING_EXCEPTION);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   823
          CLEAR_PENDING_EXCEPTION;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   824
          {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   825
            EXCEPTION_MARK;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   826
            // Locks object, set state, and notify all waiting threads
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   827
            this_k->set_initialization_state_and_notify(
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   828
                initialization_error, THREAD);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   829
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   830
            // ignore any exception thrown, superclass initialization error is
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   831
            // thrown below
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   832
            CLEAR_PENDING_EXCEPTION;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   833
          }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   834
          DTRACE_CLASSINIT_PROBE_WAIT(
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   835
              super__failed, InstanceKlass::cast(this_k()), -1, wait);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   836
          THROW_OOP(e());
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   837
        }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   838
      }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   839
    }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   840
  }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   841
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
  // Step 8
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
    assert(THREAD->is_Java_thread(), "non-JavaThread in initialize_impl");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
    JavaThread* jt = (JavaThread*)THREAD;
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   846
    DTRACE_CLASSINIT_PROBE_WAIT(clinit, InstanceKlass::cast(this_k()), -1,wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
    // Timer includes any side effects of class initialization (resolution,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
    // etc), but not recursive entry into call_class_initializer().
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   849
    PerfClassTraceTime timer(ClassLoader::perf_class_init_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   850
                             ClassLoader::perf_class_init_selftime(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   851
                             ClassLoader::perf_classes_inited(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   852
                             jt->get_thread_stat()->perf_recursion_counts_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   853
                             jt->get_thread_stat()->perf_timers_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   854
                             PerfClassTraceTime::CLASS_CLINIT);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   855
    this_k->call_class_initializer(THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
489c9b5090e2 Initial load
duke
parents:
diff changeset
   858
  // Step 9
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
  if (!HAS_PENDING_EXCEPTION) {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   860
    this_k->set_initialization_state_and_notify(fully_initialized, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
    { ResourceMark rm(THREAD);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   862
      debug_only(this_k->vtable()->verify(tty, true);)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   863
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   864
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
  else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
    // Step 10 and 11
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
    Handle e(THREAD, PENDING_EXCEPTION);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
    CLEAR_PENDING_EXCEPTION;
22897
77e1024a4a14 4505697: nsk/jdi/ExceptionEvent/_itself_/exevent006 and exevent008 tests fail with InvocationTargetException
jbachorik
parents: 22881
diff changeset
   869
    // JVMTI has already reported the pending exception
77e1024a4a14 4505697: nsk/jdi/ExceptionEvent/_itself_/exevent006 and exevent008 tests fail with InvocationTargetException
jbachorik
parents: 22881
diff changeset
   870
    // JVMTI internal flag reset is needed in order to report ExceptionInInitializerError
77e1024a4a14 4505697: nsk/jdi/ExceptionEvent/_itself_/exevent006 and exevent008 tests fail with InvocationTargetException
jbachorik
parents: 22881
diff changeset
   871
    JvmtiExport::clear_detected_exception((JavaThread*)THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
      EXCEPTION_MARK;
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   874
      this_k->set_initialization_state_and_notify(initialization_error, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   875
      CLEAR_PENDING_EXCEPTION;   // ignore any exception thrown, class initialization error is thrown below
22897
77e1024a4a14 4505697: nsk/jdi/ExceptionEvent/_itself_/exevent006 and exevent008 tests fail with InvocationTargetException
jbachorik
parents: 22881
diff changeset
   876
      // JVMTI has already reported the pending exception
77e1024a4a14 4505697: nsk/jdi/ExceptionEvent/_itself_/exevent006 and exevent008 tests fail with InvocationTargetException
jbachorik
parents: 22881
diff changeset
   877
      // JVMTI internal flag reset is needed in order to report ExceptionInInitializerError
77e1024a4a14 4505697: nsk/jdi/ExceptionEvent/_itself_/exevent006 and exevent008 tests fail with InvocationTargetException
jbachorik
parents: 22881
diff changeset
   878
      JvmtiExport::clear_detected_exception((JavaThread*)THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   879
    }
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   880
    DTRACE_CLASSINIT_PROBE_WAIT(error, InstanceKlass::cast(this_k()), -1,wait);
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4094
diff changeset
   881
    if (e->is_a(SystemDictionary::Error_klass())) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
      THROW_OOP(e());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   884
      JavaCallArguments args(e);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   885
      THROW_ARG(vmSymbols::java_lang_ExceptionInInitializerError(),
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   886
                vmSymbols::throwable_void_signature(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
                &args);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
  }
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   890
  DTRACE_CLASSINIT_PROBE_WAIT(end, InstanceKlass::cast(this_k()), -1,wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   891
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
// Note: implementation moved to static method to expose the this pointer.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   895
void InstanceKlass::set_initialization_state_and_notify(ClassState state, TRAPS) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   896
  instanceKlassHandle kh(THREAD, this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
  set_initialization_state_and_notify_impl(kh, state, CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   900
void InstanceKlass::set_initialization_state_and_notify_impl(instanceKlassHandle this_k, ClassState state, TRAPS) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   901
  oop init_lock = this_k->init_lock();
21079
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   902
  ObjectLocker ol(init_lock, THREAD, init_lock != NULL);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   903
  this_k->set_init_state(state);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   904
  this_k->fence_and_clear_init_lock();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
  ol.notify_all(CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   908
// The embedded _implementor field can only record one implementor.
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   909
// When there are more than one implementors, the _implementor field
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   910
// is set to the interface Klass* itself. Following are the possible
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   911
// values for the _implementor field:
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   912
//   NULL                  - no implementor
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   913
//   implementor Klass*    - one implementor
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   914
//   self                  - more than one implementor
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   915
//
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   916
// The _implementor field only exists for interfaces.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   917
void InstanceKlass::add_implementor(Klass* k) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
  assert(Compile_lock->owned_by_self(), "");
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   919
  assert(is_interface(), "not interface");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
  // Filter out my subinterfaces.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
  // (Note: Interfaces are never on the subklass list.)
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   922
  if (InstanceKlass::cast(k)->is_interface()) return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
  // Filter out subclasses whose supers already implement me.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
  // (Note: CHA must walk subclasses of direct implementors
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
  // in order to locate indirect implementors.)
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   927
  Klass* sk = InstanceKlass::cast(k)->super();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   928
  if (sk != NULL && InstanceKlass::cast(sk)->implements_interface(this))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
    // We only need to check one immediate superclass, since the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
    // implements_interface query looks at transitive_interfaces.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
    // Any supers of the super have the same (or fewer) transitive_interfaces.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   934
  Klass* ik = implementor();
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   935
  if (ik == NULL) {
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   936
    set_implementor(k);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   937
  } else if (ik != this) {
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   938
    // There is already an implementor. Use itself as an indicator of
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   939
    // more than one implementors.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   940
    set_implementor(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
  // The implementor also implements the transitive_interfaces
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
  for (int index = 0; index < local_interfaces()->length(); index++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   945
    InstanceKlass::cast(local_interfaces()->at(index))->add_implementor(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   949
void InstanceKlass::init_implementor() {
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   950
  if (is_interface()) {
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   951
    set_implementor(NULL);
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
   952
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   956
void InstanceKlass::process_interfaces(Thread *thread) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
  // link this class into the implementors list of every interface it implements
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
  for (int i = local_interfaces()->length() - 1; i >= 0; i--) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   959
    assert(local_interfaces()->at(i)->is_klass(), "must be a klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   960
    InstanceKlass* interf = InstanceKlass::cast(local_interfaces()->at(i));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   961
    assert(interf->is_interface(), "expected interface");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
   962
    interf->add_implementor(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   963
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   964
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   965
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   966
bool InstanceKlass::can_be_primary_super_slow() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   967
  if (is_interface())
489c9b5090e2 Initial load
duke
parents:
diff changeset
   968
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   969
  else
489c9b5090e2 Initial load
duke
parents:
diff changeset
   970
    return Klass::can_be_primary_super_slow();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   971
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   972
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   973
GrowableArray<Klass*>* InstanceKlass::compute_secondary_supers(int num_extra_slots) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
  // The secondaries are the implemented interfaces.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   975
  InstanceKlass* ik = InstanceKlass::cast(this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   976
  Array<Klass*>* interfaces = ik->transitive_interfaces();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
  int num_secondaries = num_extra_slots + interfaces->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
  if (num_secondaries == 0) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   979
    // Must share this for correct bootstrapping!
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   980
    set_secondary_supers(Universe::the_empty_klass_array());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   981
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
  } else if (num_extra_slots == 0) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   983
    // The secondary super list is exactly the same as the transitive interfaces.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   984
    // Redefine classes has to be careful not to delete this!
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   985
    set_secondary_supers(interfaces);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   986
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
  } else {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   988
    // Copy transitive interfaces to a temporary growable array to be constructed
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   989
    // into the secondary super list with extra slots.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   990
    GrowableArray<Klass*>* secondaries = new GrowableArray<Klass*>(interfaces->length());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
    for (int i = 0; i < interfaces->length(); i++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   992
      secondaries->push(interfaces->at(i));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
    return secondaries;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   998
bool InstanceKlass::compute_is_subtype_of(Klass* k) {
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
   999
  if (k->is_interface()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1000
    return implements_interface(k);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1001
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1002
    return Klass::compute_is_subtype_of(k);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1003
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1004
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1006
bool InstanceKlass::implements_interface(Klass* k) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1007
  if (this == k) return true;
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1008
  assert(k->is_interface(), "should be an interface class");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
  for (int i = 0; i < transitive_interfaces()->length(); i++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1010
    if (transitive_interfaces()->at(i) == k) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1011
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
21768
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1017
bool InstanceKlass::is_same_or_direct_interface(Klass *k) const {
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1018
  // Verify direct super interface
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1019
  if (this == k) return true;
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1020
  assert(k->is_interface(), "should be an interface class");
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1021
  for (int i = 0; i < local_interfaces()->length(); i++) {
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1022
    if (local_interfaces()->at(i) == k) {
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1023
      return true;
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1024
    }
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1025
  }
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1026
  return false;
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1027
}
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1028
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1029
objArrayOop InstanceKlass::allocate_objArray(int n, int length, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1030
  if (length < 0) THROW_0(vmSymbols::java_lang_NegativeArraySizeException());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
  if (length > arrayOopDesc::max_array_length(T_OBJECT)) {
3576
4ceec8fb3e18 6850957: Honor -XX:OnOutOfMemoryError when array size exceeds VM limit
martin
parents: 3575
diff changeset
  1032
    report_java_out_of_memory("Requested array size exceeds VM limit");
12114
9a825a536095 7123170: JCK vm/jvmti/ResourceExhausted/resexh001/resexh00101/ tests fails since 7u4 b02
sspitsyn
parents: 11407
diff changeset
  1033
    JvmtiExport::post_array_size_exhausted();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
    THROW_OOP_0(Universe::out_of_memory_error_array_size());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1035
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
  int size = objArrayOopDesc::object_size(length);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1037
  Klass* ak = array_klass(n, CHECK_NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
  KlassHandle h_ak (THREAD, ak);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
  objArrayOop o =
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
    (objArrayOop)CollectedHeap::array_allocate(h_ak, size, length, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
  return o;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1043
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1044
instanceOop InstanceKlass::register_finalizer(instanceOop i, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1045
  if (TraceFinalizerRegistration) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1046
    tty->print("Registered ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1047
    i->print_value_on(tty);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1048
    tty->print_cr(" (" INTPTR_FORMAT ") as finalizable", (address)i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1049
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1050
  instanceHandle h_i(THREAD, i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1051
  // Pass the handle as argument, JavaCalls::call expects oop as jobjects
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1052
  JavaValue result(T_VOID);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1053
  JavaCallArguments args(h_i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
  methodHandle mh (THREAD, Universe::finalizer_register_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
  JavaCalls::call(&result, mh, &args, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
  return h_i();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1057
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1058
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1059
instanceOop InstanceKlass::allocate_instance(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1060
  bool has_finalizer_flag = has_finalizer(); // Query before possible GC
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1061
  int size = size_helper();  // Query before forming handle.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1062
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1063
  KlassHandle h_k(THREAD, this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1064
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1065
  instanceOop i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1066
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1067
  i = (instanceOop)CollectedHeap::obj_allocate(h_k, size, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1068
  if (has_finalizer_flag && !RegisterFinalizersAtInit) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1069
    i = register_finalizer(i, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1070
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1071
  return i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1072
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1073
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1074
void InstanceKlass::check_valid_for_instantiation(bool throwError, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1075
  if (is_interface() || is_abstract()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1076
    ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1077
    THROW_MSG(throwError ? vmSymbols::java_lang_InstantiationError()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1078
              : vmSymbols::java_lang_InstantiationException(), external_name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1079
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1080
  if (this == SystemDictionary::Class_klass()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1081
    ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1082
    THROW_MSG(throwError ? vmSymbols::java_lang_IllegalAccessError()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1083
              : vmSymbols::java_lang_IllegalAccessException(), external_name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1084
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1085
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1086
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1087
Klass* InstanceKlass::array_klass_impl(bool or_null, int n, TRAPS) {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1088
  instanceKlassHandle this_k(THREAD, this);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1089
  return array_klass_impl(this_k, or_null, n, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1090
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1091
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1092
Klass* InstanceKlass::array_klass_impl(instanceKlassHandle this_k, bool or_null, int n, TRAPS) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1093
  if (this_k->array_klasses() == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1094
    if (or_null) return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1095
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1096
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1097
    JavaThread *jt = (JavaThread *)THREAD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1098
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1099
      // Atomic creation of array_klasses
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
      MutexLocker mc(Compile_lock, THREAD);   // for vtables
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
      MutexLocker ma(MultiArray_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
      // Check if update has already taken place
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1104
      if (this_k->array_klasses() == NULL) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1105
        Klass*    k = ObjArrayKlass::allocate_objArray_klass(this_k->class_loader_data(), 1, this_k, CHECK_NULL);
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1106
        this_k->set_array_klasses(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1108
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
  // _this will always be set at this point
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1111
  ObjArrayKlass* oak = (ObjArrayKlass*)this_k->array_klasses();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
  if (or_null) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
    return oak->array_klass_or_null(n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1115
  return oak->array_klass(n, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1116
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1117
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1118
Klass* InstanceKlass::array_klass_impl(bool or_null, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1119
  return array_klass_impl(or_null, 1, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1120
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1122
void InstanceKlass::call_class_initializer(TRAPS) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1123
  instanceKlassHandle ik (THREAD, this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
  call_class_initializer_impl(ik, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
static int call_class_initializer_impl_counter = 0;   // for debugging
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1129
Method* InstanceKlass::class_initializer() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1130
  Method* clinit = find_method(
8653
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8297
diff changeset
  1131
      vmSymbols::class_initializer_name(), vmSymbols::void_method_signature());
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8297
diff changeset
  1132
  if (clinit != NULL && clinit->has_valid_initializer_flags()) {
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8297
diff changeset
  1133
    return clinit;
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8297
diff changeset
  1134
  }
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8297
diff changeset
  1135
  return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1138
void InstanceKlass::call_class_initializer_impl(instanceKlassHandle this_k, TRAPS) {
14477
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1139
  if (ReplayCompiles &&
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1140
      (ReplaySuppressInitializers == 1 ||
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1141
       ReplaySuppressInitializers >= 2 && this_k->class_loader() != NULL)) {
14477
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1142
    // Hide the existence of the initializer for the purpose of replaying the compile
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1143
    return;
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1144
  }
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1145
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1146
  methodHandle h_method(THREAD, this_k->class_initializer());
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1147
  assert(!this_k->is_initialized(), "we cannot initialize twice");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
  if (TraceClassInitialization) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
    tty->print("%d Initializing ", call_class_initializer_impl_counter++);
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1150
    this_k->name()->print_value();
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1151
    tty->print_cr("%s (" INTPTR_FORMAT ")", h_method() == NULL ? "(no method)" : "", (address)this_k());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
  if (h_method() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1154
    JavaCallArguments args; // No arguments
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
    JavaValue result(T_VOID);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
    JavaCalls::call(&result, h_method, &args, CHECK); // Static call (no args)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1160
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1161
void InstanceKlass::mask_for(methodHandle method, int bci,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
  InterpreterOopMap* entry_for) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
  // Dirty read, then double-check under a lock.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1164
  if (_oop_map_cache == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1165
    // Otherwise, allocate a new one.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1166
    MutexLocker x(OopMapCacheAlloc_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1167
    // First time use. Allocate a cache in C heap
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1168
    if (_oop_map_cache == NULL) {
22859
7b88983393b7 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 21768
diff changeset
  1169
      // Release stores from OopMapCache constructor before assignment
7b88983393b7 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 21768
diff changeset
  1170
      // to _oop_map_cache. C++ compilers on ppc do not emit the
7b88983393b7 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 21768
diff changeset
  1171
      // required memory barrier only because of the volatile
7b88983393b7 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 21768
diff changeset
  1172
      // qualifier of _oop_map_cache.
7b88983393b7 8029396: PPC64 (part 212): Several memory ordering fixes in C-code.
goetz
parents: 21768
diff changeset
  1173
      OrderAccess::release_store_ptr(&_oop_map_cache, new OopMapCache());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
  // _oop_map_cache is constant after init; lookup below does is own locking.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
  _oop_map_cache->lookup(method, bci, entry_for);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1181
bool InstanceKlass::find_local_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1182
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1183
    Symbol* f_name = fs.name();
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1184
    Symbol* f_sig  = fs.signature();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
    if (f_name == name && f_sig == sig) {
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  1186
      fd->reinitialize(const_cast<InstanceKlass*>(this), fs.index());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1190
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1191
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1194
Klass* InstanceKlass::find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
  const int n = local_interfaces()->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
  for (int i = 0; i < n; i++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1197
    Klass* intf1 = local_interfaces()->at(i);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1198
    assert(intf1->is_interface(), "just checking type");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
    // search for field in current interface
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1200
    if (InstanceKlass::cast(intf1)->find_local_field(name, sig, fd)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1201
      assert(fd->is_static(), "interface field must be static");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1202
      return intf1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1203
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1204
    // search for field in direct superinterfaces
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1205
    Klass* intf2 = InstanceKlass::cast(intf1)->find_interface_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1206
    if (intf2 != NULL) return intf2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1207
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1208
  // otherwise field lookup fails
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1209
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1210
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1211
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1212
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1213
Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1214
  // search order according to newest JVM spec (5.4.3.2, p.167).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
  // 1) search for field in current klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
  if (find_local_field(name, sig, fd)) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1217
    return const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1218
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
  // 2) search for field recursively in direct superinterfaces
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1220
  { Klass* intf = find_interface_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
    if (intf != NULL) return intf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1222
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
  // 3) apply field lookup recursively if superclass exists
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1224
  { Klass* supr = super();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1225
    if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
  // 4) otherwise field lookup fails
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1232
Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
  // search order according to newest JVM spec (5.4.3.2, p.167).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
  // 1) search for field in current klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
  if (find_local_field(name, sig, fd)) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1236
    if (fd->is_static() == is_static) return const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
  // 2) search for field recursively in direct superinterfaces
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
  if (is_static) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1240
    Klass* intf = find_interface_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
    if (intf != NULL) return intf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1243
  // 3) apply field lookup recursively if superclass exists
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1244
  { Klass* supr = super();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1245
    if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, is_static, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
  // 4) otherwise field lookup fails
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1252
bool InstanceKlass::find_local_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1253
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1254
    if (fs.offset() == offset) {
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  1255
      fd->reinitialize(const_cast<InstanceKlass*>(this), fs.index());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
      if (fd->is_static() == is_static) return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1260
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1263
bool InstanceKlass::find_field_from_offset(int offset, bool is_static, fieldDescriptor* fd) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1264
  Klass* klass = const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
  while (klass != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1266
    if (InstanceKlass::cast(klass)->find_local_field_from_offset(offset, is_static, fd)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
    }
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1269
    klass = klass->super();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1275
void InstanceKlass::methods_do(void f(Method* method)) {
24658
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1276
  // Methods aren't stable until they are loaded.  This can be read outside
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1277
  // a lock through the ClassLoaderData for profiling
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1278
  if (!is_loaded()) {
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1279
    return;
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1280
  }
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1281
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
  int len = methods()->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
  for (int index = 0; index < len; index++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1284
    Method* m = methods()->at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
    assert(m->is_method(), "must be method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
    f(m);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1288
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  1290
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1291
void InstanceKlass::do_local_static_fields(FieldClosure* cl) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1292
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1293
    if (fs.access_flags().is_static()) {
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  1294
      fieldDescriptor& fd = fs.field_descriptor();
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1295
      cl->do_field(&fd);
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1296
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  1301
void InstanceKlass::do_local_static_fields(void f(fieldDescriptor*, Handle, TRAPS), Handle mirror, TRAPS) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1302
  instanceKlassHandle h_this(THREAD, this);
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  1303
  do_local_static_fields_impl(h_this, f, mirror, CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1305
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  1307
void InstanceKlass::do_local_static_fields_impl(instanceKlassHandle this_k,
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  1308
                             void f(fieldDescriptor* fd, Handle, TRAPS), Handle mirror, TRAPS) {
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1309
  for (JavaFieldStream fs(this_k()); !fs.done(); fs.next()) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1310
    if (fs.access_flags().is_static()) {
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  1311
      fieldDescriptor& fd = fs.field_descriptor();
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  1312
      f(&fd, mirror, CHECK);
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1313
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1316
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1317
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1318
static int compare_fields_by_offset(int* a, int* b) {
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1319
  return a[0] - b[0];
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1320
}
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1321
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1322
void InstanceKlass::do_nonstatic_fields(FieldClosure* cl) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1323
  InstanceKlass* super = superklass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1324
  if (super != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1325
    super->do_nonstatic_fields(cl);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1326
  }
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1327
  fieldDescriptor fd;
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1328
  int length = java_fields_count();
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1329
  // In DebugInfo nonstatic fields are sorted by offset.
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12587
diff changeset
  1330
  int* fields_sorted = NEW_C_HEAP_ARRAY(int, 2*(length+1), mtClass);
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1331
  int j = 0;
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1332
  for (int i = 0; i < length; i += 1) {
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  1333
    fd.reinitialize(this, i);
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1334
    if (!fd.is_static()) {
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1335
      fields_sorted[j + 0] = fd.offset();
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1336
      fields_sorted[j + 1] = i;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1337
      j += 2;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1338
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
  }
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1340
  if (j > 0) {
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1341
    length = j;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1342
    // _sort_Fn is defined in growableArray.hpp.
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1343
    qsort(fields_sorted, length/2, 2*sizeof(int), (_sort_Fn)compare_fields_by_offset);
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1344
    for (int i = 0; i < length; i += 2) {
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  1345
      fd.reinitialize(this, fields_sorted[i + 1]);
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1346
      assert(!fd.is_static() && fd.offset() == fields_sorted[i], "only nonstatic fields");
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1347
      cl->do_field(&fd);
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1348
    }
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1349
  }
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12587
diff changeset
  1350
  FREE_C_HEAP_ARRAY(int, fields_sorted, mtClass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1351
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1354
void InstanceKlass::array_klasses_do(void f(Klass* k, TRAPS), TRAPS) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1355
  if (array_klasses() != NULL)
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13738
diff changeset
  1356
    ArrayKlass::cast(array_klasses())->array_klasses_do(f, THREAD);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1357
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1358
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1359
void InstanceKlass::array_klasses_do(void f(Klass* k)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
  if (array_klasses() != NULL)
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13738
diff changeset
  1361
    ArrayKlass::cast(array_klasses())->array_klasses_do(f);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
#ifdef ASSERT
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1365
static int linear_search(Array<Method*>* methods, Symbol* name, Symbol* signature) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
  int len = methods->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
  for (int index = 0; index < len; index++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1368
    Method* m = methods->at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
    assert(m->is_method(), "must be method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1370
    if (m->signature() == signature && m->name() == name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1371
       return index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1372
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1373
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1374
  return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1376
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1377
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1378
static int binary_search(Array<Method*>* methods, Symbol* name) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1379
  int len = methods->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1380
  // methods are sorted, so do binary search
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
  int l = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
  int h = len - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
  while (l <= h) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
    int mid = (l + h) >> 1;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1385
    Method* m = methods->at(mid);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
    assert(m->is_method(), "must be method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
    int res = m->name()->fast_compare(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
    if (res == 0) {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1389
      return mid;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
    } else if (res < 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
      l = mid + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1393
      h = mid - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1394
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1395
  }
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1396
  return -1;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1397
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1398
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1399
// find_method looks up the name/signature in the local methods array
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1400
Method* InstanceKlass::find_method(Symbol* name, Symbol* signature) const {
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1401
  return find_method_impl(name, signature, false);
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1402
}
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1403
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1404
Method* InstanceKlass::find_method_impl(Symbol* name, Symbol* signature, bool skipping_overpass) const {
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1405
  return InstanceKlass::find_method_impl(methods(), name, signature, skipping_overpass);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1406
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1407
21913
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1408
// find_instance_method looks up the name/signature in the local methods array
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1409
// and skips over static methods
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1410
Method* InstanceKlass::find_instance_method(
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1411
    Array<Method*>* methods, Symbol* name, Symbol* signature) {
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1412
  Method* meth = InstanceKlass::find_method(methods, name, signature);
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1413
  if (meth != NULL && meth->is_static()) {
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1414
      meth = NULL;
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1415
  }
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1416
  return meth;
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1417
}
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1418
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1419
// find_method looks up the name/signature in the local methods array
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1420
Method* InstanceKlass::find_method(
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1421
    Array<Method*>* methods, Symbol* name, Symbol* signature) {
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1422
  return InstanceKlass::find_method_impl(methods, name, signature, false);
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1423
}
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1424
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1425
Method* InstanceKlass::find_method_impl(
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1426
    Array<Method*>* methods, Symbol* name, Symbol* signature, bool skipping_overpass) {
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1427
  int hit = find_method_index(methods, name, signature, skipping_overpass);
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1428
  return hit >= 0 ? methods->at(hit): NULL;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1429
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1430
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1431
// Used directly for default_methods to find the index into the
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1432
// default_vtable_indices, and indirectly by find_method
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1433
// find_method_index looks in the local methods array to return the index
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1434
// of the matching name/signature. If, overpass methods are being ignored,
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1435
// the search continues to find a potential non-overpass match.  This capability
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1436
// is important during method resolution to prefer a static method, for example,
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1437
// over an overpass method.
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1438
int InstanceKlass::find_method_index(
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1439
    Array<Method*>* methods, Symbol* name, Symbol* signature, bool skipping_overpass) {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1440
  int hit = binary_search(methods, name);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1441
  if (hit != -1) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1442
    Method* m = methods->at(hit);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1443
    // Do linear search to find matching signature.  First, quick check
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1444
    // for common case, ignoring overpasses if requested.
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1445
    if ((m->signature() == signature) && (!skipping_overpass || !m->is_overpass())) return hit;
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1446
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1447
    // search downwards through overloaded methods
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1448
    int i;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1449
    for (i = hit - 1; i >= 0; --i) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1450
        Method* m = methods->at(i);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1451
        assert(m->is_method(), "must be method");
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1452
        if (m->name() != name) break;
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1453
        if ((m->signature() == signature) && (!skipping_overpass || !m->is_overpass())) return i;
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1454
    }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1455
    // search upwards
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1456
    for (i = hit + 1; i < methods->length(); ++i) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1457
        Method* m = methods->at(i);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1458
        assert(m->is_method(), "must be method");
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1459
        if (m->name() != name) break;
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1460
        if ((m->signature() == signature) && (!skipping_overpass || !m->is_overpass())) return i;
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1461
    }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1462
    // not found
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
#ifdef ASSERT
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1464
    int index = skipping_overpass ? -1 : linear_search(methods, name, signature);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1465
    assert(index == -1, err_msg("binary search should have found entry %d", index));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
#endif
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1467
  }
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1468
  return -1;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
}
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1470
int InstanceKlass::find_method_by_name(Symbol* name, int* end) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1471
  return find_method_by_name(methods(), name, end);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1472
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1473
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1474
int InstanceKlass::find_method_by_name(
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1475
    Array<Method*>* methods, Symbol* name, int* end_ptr) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1476
  assert(end_ptr != NULL, "just checking");
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1477
  int start = binary_search(methods, name);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1478
  int end = start + 1;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1479
  if (start != -1) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1480
    while (start - 1 >= 0 && (methods->at(start - 1))->name() == name) --start;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1481
    while (end < methods->length() && (methods->at(end))->name() == name) ++end;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1482
    *end_ptr = end;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1483
    return start;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1484
  }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1485
  return -1;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1486
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1487
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1488
// uncached_lookup_method searches both the local class methods array and all
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1489
// superclasses methods arrays, skipping any overpass methods in superclasses.
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1490
Method* InstanceKlass::uncached_lookup_method(Symbol* name, Symbol* signature, MethodLookupMode mode) const {
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1491
  MethodLookupMode lookup_mode = mode;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1492
  Klass* klass = const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1493
  while (klass != NULL) {
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1494
    Method* method = InstanceKlass::cast(klass)->find_method_impl(name, signature, (lookup_mode == skip_overpass));
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1495
    if (method != NULL) {
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1496
      return method;
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1497
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1498
    klass = InstanceKlass::cast(klass)->super();
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1499
    lookup_mode = skip_overpass;   // Always ignore overpass methods in superclasses
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1500
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1501
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1502
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1503
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1504
// lookup a method in the default methods list then in all transitive interfaces
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1505
// Do NOT return private or static methods
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1506
Method* InstanceKlass::lookup_method_in_ordered_interfaces(Symbol* name,
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1507
                                                         Symbol* signature) const {
20396
0ed0e7aa1ed8 8026185: nsk/jvmit/GetMethodDeclaringClass/declcls001 failed
acorn
parents: 20391
diff changeset
  1508
  Method* m = NULL;
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1509
  if (default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1510
    m = find_method(default_methods(), name, signature);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1511
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1512
  // Look up interfaces
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1513
  if (m == NULL) {
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1514
    m = lookup_method_in_all_interfaces(name, signature, normal);
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1515
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1516
  return m;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1517
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1518
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
// lookup a method in all the interfaces that this class implements
20284
595a25ab9474 8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents: 20282
diff changeset
  1520
// Do NOT return private or static methods, new in JDK8 which are not externally visible
595a25ab9474 8011311: Private interface methods. Default conflicts:ICCE. no erased_super_default.
acorn
parents: 20282
diff changeset
  1521
// They should only be found in the initial InterfaceMethodRef
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1522
Method* InstanceKlass::lookup_method_in_all_interfaces(Symbol* name,
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1523
                                                       Symbol* signature,
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1524
                                                       MethodLookupMode mode) const {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1525
  Array<Klass*>* all_ifs = transitive_interfaces();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1526
  int num_ifs = all_ifs->length();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1527
  InstanceKlass *ik = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1528
  for (int i = 0; i < num_ifs; i++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1529
    ik = InstanceKlass::cast(all_ifs->at(i));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1530
    Method* m = ik->lookup_method(name, signature);
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1531
    if (m != NULL && m->is_public() && !m->is_static() &&
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1532
        ((mode != skip_defaults) || !m->is_default_method())) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
      return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1534
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1535
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1539
/* jni_id_for_impl for jfieldIds only */
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1540
JNIid* InstanceKlass::jni_id_for_impl(instanceKlassHandle this_k, int offset) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1541
  MutexLocker ml(JfieldIdCreation_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1542
  // Retry lookup after we got the lock
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1543
  JNIid* probe = this_k->jni_ids() == NULL ? NULL : this_k->jni_ids()->find(offset);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1544
  if (probe == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1545
    // Slow case, allocate new static field identifier
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1546
    probe = new JNIid(this_k(), offset, this_k->jni_ids());
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1547
    this_k->set_jni_ids(probe);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1548
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1549
  return probe;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1550
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1552
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1553
/* jni_id_for for jfieldIds only */
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1554
JNIid* InstanceKlass::jni_id_for(int offset) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
  JNIid* probe = jni_ids() == NULL ? NULL : jni_ids()->find(offset);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
  if (probe == NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1557
    probe = jni_id_for_impl(this, offset);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1558
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1559
  return probe;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1560
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1561
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1562
u2 InstanceKlass::enclosing_method_data(int offset) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1563
  Array<jushort>* inner_class_list = inner_classes();
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1564
  if (inner_class_list == NULL) {
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1565
    return 0;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1566
  }
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1567
  int length = inner_class_list->length();
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1568
  if (length % inner_class_next_offset == 0) {
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1569
    return 0;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1570
  } else {
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1571
    int index = length - enclosing_method_attribute_size;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1572
    assert(offset < enclosing_method_attribute_size, "invalid offset");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1573
    return inner_class_list->at(index + offset);
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1574
  }
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1575
}
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1576
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1577
void InstanceKlass::set_enclosing_method_indices(u2 class_index,
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1578
                                                 u2 method_index) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1579
  Array<jushort>* inner_class_list = inner_classes();
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1580
  assert (inner_class_list != NULL, "_inner_classes list is not set up");
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1581
  int length = inner_class_list->length();
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1582
  if (length % inner_class_next_offset == enclosing_method_attribute_size) {
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1583
    int index = length - enclosing_method_attribute_size;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1584
    inner_class_list->at_put(
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1585
      index + enclosing_method_class_index_offset, class_index);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1586
    inner_class_list->at_put(
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1587
      index + enclosing_method_method_index_offset, method_index);
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1588
  }
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1589
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1590
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1591
// Lookup or create a jmethodID.
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1592
// This code is called by the VMThread and JavaThreads so the
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1593
// locking has to be done very carefully to avoid deadlocks
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1594
// and/or other cache consistency problems.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1595
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1596
jmethodID InstanceKlass::get_jmethod_id(instanceKlassHandle ik_h, methodHandle method_h) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1597
  size_t idnum = (size_t)method_h->method_idnum();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1598
  jmethodID* jmeths = ik_h->methods_jmethod_ids_acquire();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1599
  size_t length = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1600
  jmethodID id = NULL;
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1601
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1602
  // We use a double-check locking idiom here because this cache is
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1603
  // performance sensitive. In the normal system, this cache only
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1604
  // transitions from NULL to non-NULL which is safe because we use
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1605
  // release_set_methods_jmethod_ids() to advertise the new cache.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1606
  // A partially constructed cache should never be seen by a racing
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1607
  // thread. We also use release_store_ptr() to save a new jmethodID
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1608
  // in the cache so a partially constructed jmethodID should never be
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1609
  // seen either. Cache reads of existing jmethodIDs proceed without a
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1610
  // lock, but cache writes of a new jmethodID requires uniqueness and
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1611
  // creation of the cache itself requires no leaks so a lock is
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1612
  // generally acquired in those two cases.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1613
  //
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1614
  // If the RedefineClasses() API has been used, then this cache can
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1615
  // grow and we'll have transitions from non-NULL to bigger non-NULL.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1616
  // Cache creation requires no leaks and we require safety between all
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1617
  // cache accesses and freeing of the old cache so a lock is generally
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1618
  // acquired when the RedefineClasses() API has been used.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1619
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1620
  if (jmeths != NULL) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1621
    // the cache already exists
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1622
    if (!ik_h->idnum_can_increment()) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1623
      // the cache can't grow so we can just get the current values
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1624
      get_jmethod_id_length_value(jmeths, idnum, &length, &id);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1625
    } else {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1626
      // cache can grow so we have to be more careful
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1627
      if (Threads::number_of_threads() == 0 ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1628
          SafepointSynchronize::is_at_safepoint()) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1629
        // we're single threaded or at a safepoint - no locking needed
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1630
        get_jmethod_id_length_value(jmeths, idnum, &length, &id);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1631
      } else {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1632
        MutexLocker ml(JmethodIdCreation_lock);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1633
        get_jmethod_id_length_value(jmeths, idnum, &length, &id);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1634
      }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1635
    }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1636
  }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1637
  // implied else:
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1638
  // we need to allocate a cache so default length and id values are good
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1639
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1640
  if (jmeths == NULL ||   // no cache yet
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1641
      length <= idnum ||  // cache is too short
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1642
      id == NULL) {       // cache doesn't contain entry
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1643
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1644
    // This function can be called by the VMThread so we have to do all
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1645
    // things that might block on a safepoint before grabbing the lock.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1646
    // Otherwise, we can deadlock with the VMThread or have a cache
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1647
    // consistency issue. These vars keep track of what we might have
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1648
    // to free after the lock is dropped.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1649
    jmethodID  to_dealloc_id     = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1650
    jmethodID* to_dealloc_jmeths = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1651
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1652
    // may not allocate new_jmeths or use it if we allocate it
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1653
    jmethodID* new_jmeths = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1654
    if (length <= idnum) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1655
      // allocate a new cache that might be used
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1656
      size_t size = MAX2(idnum+1, (size_t)ik_h->idnum_allocated_count());
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12587
diff changeset
  1657
      new_jmeths = NEW_C_HEAP_ARRAY(jmethodID, size+1, mtClass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1658
      memset(new_jmeths, 0, (size+1)*sizeof(jmethodID));
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1659
      // cache size is stored in element[0], other elements offset by one
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1660
      new_jmeths[0] = (jmethodID)size;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1661
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1662
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1663
    // allocate a new jmethodID that might be used
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1664
    jmethodID new_id = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1665
    if (method_h->is_old() && !method_h->is_obsolete()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1666
      // The method passed in is old (but not obsolete), we need to use the current version
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1667
      Method* current_method = ik_h->method_with_idnum((int)idnum);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1668
      assert(current_method != NULL, "old and but not obsolete, so should exist");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1669
      new_id = Method::make_jmethod_id(ik_h->class_loader_data(), current_method);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1670
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1671
      // It is the current version of the method or an obsolete method,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1672
      // use the version passed in
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1673
      new_id = Method::make_jmethod_id(ik_h->class_loader_data(), method_h());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1674
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1675
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1676
    if (Threads::number_of_threads() == 0 ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1677
        SafepointSynchronize::is_at_safepoint()) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1678
      // we're single threaded or at a safepoint - no locking needed
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1679
      id = get_jmethod_id_fetch_or_update(ik_h, idnum, new_id, new_jmeths,
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1680
                                          &to_dealloc_id, &to_dealloc_jmeths);
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1681
    } else {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1682
      MutexLocker ml(JmethodIdCreation_lock);
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1683
      id = get_jmethod_id_fetch_or_update(ik_h, idnum, new_id, new_jmeths,
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1684
                                          &to_dealloc_id, &to_dealloc_jmeths);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1685
    }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1686
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1687
    // The lock has been dropped so we can free resources.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1688
    // Free up either the old cache or the new cache if we allocated one.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1689
    if (to_dealloc_jmeths != NULL) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1690
      FreeHeap(to_dealloc_jmeths);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1691
    }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1692
    // free up the new ID since it wasn't needed
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1693
    if (to_dealloc_id != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1694
      Method::destroy_jmethod_id(ik_h->class_loader_data(), to_dealloc_id);
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1695
    }
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1696
  }
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1697
  return id;
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1698
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1699
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1700
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1701
// Common code to fetch the jmethodID from the cache or update the
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1702
// cache with the new jmethodID. This function should never do anything
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1703
// that causes the caller to go to a safepoint or we can deadlock with
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1704
// the VMThread or have cache consistency issues.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1705
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1706
jmethodID InstanceKlass::get_jmethod_id_fetch_or_update(
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1707
            instanceKlassHandle ik_h, size_t idnum, jmethodID new_id,
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1708
            jmethodID* new_jmeths, jmethodID* to_dealloc_id_p,
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1709
            jmethodID** to_dealloc_jmeths_p) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1710
  assert(new_id != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1711
  assert(to_dealloc_id_p != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1712
  assert(to_dealloc_jmeths_p != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1713
  assert(Threads::number_of_threads() == 0 ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1714
         SafepointSynchronize::is_at_safepoint() ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1715
         JmethodIdCreation_lock->owned_by_self(), "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1716
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1717
  // reacquire the cache - we are locked, single threaded or at a safepoint
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1718
  jmethodID* jmeths = ik_h->methods_jmethod_ids_acquire();
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1719
  jmethodID  id     = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1720
  size_t     length = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1721
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1722
  if (jmeths == NULL ||                         // no cache yet
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1723
      (length = (size_t)jmeths[0]) <= idnum) {  // cache is too short
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1724
    if (jmeths != NULL) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1725
      // copy any existing entries from the old cache
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1726
      for (size_t index = 0; index < length; index++) {
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1727
        new_jmeths[index+1] = jmeths[index+1];
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1728
      }
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1729
      *to_dealloc_jmeths_p = jmeths;  // save old cache for later delete
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1730
    }
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1731
    ik_h->release_set_methods_jmethod_ids(jmeths = new_jmeths);
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1732
  } else {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1733
    // fetch jmethodID (if any) from the existing cache
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1734
    id = jmeths[idnum+1];
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1735
    *to_dealloc_jmeths_p = new_jmeths;  // save new cache for later delete
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1736
  }
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1737
  if (id == NULL) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1738
    // No matching jmethodID in the existing cache or we have a new
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1739
    // cache or we just grew the cache. This cache write is done here
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1740
    // by the first thread to win the foot race because a jmethodID
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1741
    // needs to be unique once it is generally available.
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1742
    id = new_id;
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1743
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1744
    // The jmethodID cache can be read while unlocked so we have to
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1745
    // make sure the new jmethodID is complete before installing it
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1746
    // in the cache.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1747
    OrderAccess::release_store_ptr(&jmeths[idnum+1], id);
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1748
  } else {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1749
    *to_dealloc_id_p = new_id; // save new id for later delete
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1750
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1751
  return id;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1752
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1753
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1754
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1755
// Common code to get the jmethodID cache length and the jmethodID
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1756
// value at index idnum if there is one.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1757
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1758
void InstanceKlass::get_jmethod_id_length_value(jmethodID* cache,
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1759
       size_t idnum, size_t *length_p, jmethodID* id_p) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1760
  assert(cache != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1761
  assert(length_p != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1762
  assert(id_p != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1763
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1764
  // cache size is stored in element[0], other elements offset by one
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1765
  *length_p = (size_t)cache[0];
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1766
  if (*length_p <= idnum) {  // cache is too short
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1767
    *id_p = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1768
  } else {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1769
    *id_p = cache[idnum+1];  // fetch jmethodID (if any)
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1770
  }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1771
}
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1772
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1773
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1774
// Lookup a jmethodID, NULL if not found.  Do no blocking, no allocations, no handles
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1775
jmethodID InstanceKlass::jmethod_id_or_null(Method* method) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1776
  size_t idnum = (size_t)method->method_idnum();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1777
  jmethodID* jmeths = methods_jmethod_ids_acquire();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1778
  size_t length;                                // length assigned as debugging crumb
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1779
  jmethodID id = NULL;
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1780
  if (jmeths != NULL &&                         // If there is a cache
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1781
      (length = (size_t)jmeths[0]) > idnum) {   // and if it is long enough,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1782
    id = jmeths[idnum+1];                       // Look up the id (may be NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1783
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1784
  return id;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1785
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1786
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1787
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1788
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1789
// Walk the list of dependent nmethods searching for nmethods which
10265
4c869854aebd 7071653: JSR 292: call site change notification should be pushed not pulled
twisti
parents: 9971
diff changeset
  1790
// are dependent on the changes that were passed in and mark them for
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1791
// deoptimization.  Returns the number of nmethods found.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1792
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1793
int InstanceKlass::mark_dependent_nmethods(DepChange& changes) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1794
  assert_locked_or_safepoint(CodeCache_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1795
  int found = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1796
  nmethodBucket* b = _dependencies;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1797
  while (b != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1798
    nmethod* nm = b->get_nmethod();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1799
    // since dependencies aren't removed until an nmethod becomes a zombie,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1800
    // the dependency list may contain nmethods which aren't alive.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1801
    if (nm->is_alive() && !nm->is_marked_for_deoptimization() && nm->check_dependency_on(changes)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1802
      if (TraceDependencies) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1803
        ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1804
        tty->print_cr("Marked for deoptimization");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1805
        tty->print_cr("  context = %s", this->external_name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1806
        changes.print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1807
        nm->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1808
        nm->print_dependencies();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1809
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1810
      nm->mark_for_deoptimization();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1811
      found++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1812
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1813
    b = b->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1814
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1815
  return found;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1816
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1817
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1818
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1819
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1820
// Add an nmethodBucket to the list of dependencies for this nmethod.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1821
// It's possible that an nmethod has multiple dependencies on this klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1822
// so a count is kept for each bucket to guarantee that creation and
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1823
// deletion of dependencies is consistent.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1824
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1825
void InstanceKlass::add_dependent_nmethod(nmethod* nm) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1826
  assert_locked_or_safepoint(CodeCache_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1827
  nmethodBucket* b = _dependencies;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1828
  nmethodBucket* last = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1829
  while (b != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1830
    if (nm == b->get_nmethod()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1831
      b->increment();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1832
      return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1833
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1834
    b = b->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1835
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1836
  _dependencies = new nmethodBucket(nm, _dependencies);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1837
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1838
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1839
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1840
//
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1841
// Decrement count of the nmethod in the dependency list and remove
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1842
// the bucket competely when the count goes to 0.  This method must
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1843
// find a corresponding bucket otherwise there's a bug in the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1844
// recording of dependecies.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1845
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1846
void InstanceKlass::remove_dependent_nmethod(nmethod* nm) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1847
  assert_locked_or_safepoint(CodeCache_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1848
  nmethodBucket* b = _dependencies;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1849
  nmethodBucket* last = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1850
  while (b != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1851
    if (nm == b->get_nmethod()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1852
      if (b->decrement() == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1853
        if (last == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1854
          _dependencies = b->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1855
        } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1856
          last->set_next(b->next());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1857
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1858
        delete b;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1859
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1860
      return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1861
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1862
    last = b;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1863
    b = b->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1864
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1865
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1866
  tty->print_cr("### %s can't find dependent nmethod:", this->external_name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1867
  nm->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1868
#endif // ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1869
  ShouldNotReachHere();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1870
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1871
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1872
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1873
#ifndef PRODUCT
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1874
void InstanceKlass::print_dependent_nmethods(bool verbose) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1875
  nmethodBucket* b = _dependencies;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1876
  int idx = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1877
  while (b != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1878
    nmethod* nm = b->get_nmethod();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1879
    tty->print("[%d] count=%d { ", idx++, b->count());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1880
    if (!verbose) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1881
      nm->print_on(tty, "nmethod");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1882
      tty->print_cr(" } ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1883
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1884
      nm->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1885
      nm->print_dependencies();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1886
      tty->print_cr("--- } ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1887
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1888
    b = b->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1889
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1890
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1891
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1892
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1893
bool InstanceKlass::is_dependent_nmethod(nmethod* nm) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1894
  nmethodBucket* b = _dependencies;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1895
  while (b != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1896
    if (nm == b->get_nmethod()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1897
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1898
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1899
    b = b->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1900
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1901
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1902
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1903
#endif //PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1904
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1905
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1906
// Garbage collection
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1907
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1908
#ifdef ASSERT
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1909
template <class T> void assert_is_in(T *p) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1910
  T heap_oop = oopDesc::load_heap_oop(p);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1911
  if (!oopDesc::is_null(heap_oop)) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1912
    oop o = oopDesc::decode_heap_oop_not_null(heap_oop);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1913
    assert(Universe::heap()->is_in(o), "should be in heap");
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1914
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1915
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1916
template <class T> void assert_is_in_closed_subset(T *p) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1917
  T heap_oop = oopDesc::load_heap_oop(p);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1918
  if (!oopDesc::is_null(heap_oop)) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1919
    oop o = oopDesc::decode_heap_oop_not_null(heap_oop);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1920
    assert(Universe::heap()->is_in_closed_subset(o),
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1921
           err_msg("should be in closed *p " INTPTR_FORMAT " " INTPTR_FORMAT, (address)p, (address)o));
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1922
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1923
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1924
template <class T> void assert_is_in_reserved(T *p) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1925
  T heap_oop = oopDesc::load_heap_oop(p);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1926
  if (!oopDesc::is_null(heap_oop)) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1927
    oop o = oopDesc::decode_heap_oop_not_null(heap_oop);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1928
    assert(Universe::heap()->is_in_reserved(o), "should be in reserved");
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1929
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1930
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1931
template <class T> void assert_nothing(T *p) {}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1932
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1933
#else
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1934
template <class T> void assert_is_in(T *p) {}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1935
template <class T> void assert_is_in_closed_subset(T *p) {}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1936
template <class T> void assert_is_in_reserved(T *p) {}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1937
template <class T> void assert_nothing(T *p) {}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1938
#endif // ASSERT
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1939
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1940
//
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1941
// Macros that iterate over areas of oops which are specialized on type of
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1942
// oop pointer either narrow or wide, depending on UseCompressedOops
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1943
//
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1944
// Parameters are:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1945
//   T         - type of oop to point to (either oop or narrowOop)
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1946
//   start_p   - starting pointer for region to iterate over
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1947
//   count     - number of oops or narrowOops to iterate over
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1948
//   do_oop    - action to perform on each oop (it's arbitrary C code which
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1949
//               makes it more efficient to put in a macro rather than making
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1950
//               it a template function)
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1951
//   assert_fn - assert function which is template function because performance
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1952
//               doesn't matter when enabled.
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1953
#define InstanceKlass_SPECIALIZED_OOP_ITERATE( \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1954
  T, start_p, count, do_oop,                \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1955
  assert_fn)                                \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1956
{                                           \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1957
  T* p         = (T*)(start_p);             \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1958
  T* const end = p + (count);               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1959
  while (p < end) {                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1960
    (assert_fn)(p);                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1961
    do_oop;                                 \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1962
    ++p;                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1963
  }                                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1964
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1965
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1966
#define InstanceKlass_SPECIALIZED_OOP_REVERSE_ITERATE( \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1967
  T, start_p, count, do_oop,                \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1968
  assert_fn)                                \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1969
{                                           \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1970
  T* const start = (T*)(start_p);           \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1971
  T*       p     = start + (count);         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1972
  while (start < p) {                       \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1973
    --p;                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1974
    (assert_fn)(p);                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1975
    do_oop;                                 \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1976
  }                                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1977
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1978
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1979
#define InstanceKlass_SPECIALIZED_BOUNDED_OOP_ITERATE( \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1980
  T, start_p, count, low, high,             \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1981
  do_oop, assert_fn)                        \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1982
{                                           \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1983
  T* const l = (T*)(low);                   \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1984
  T* const h = (T*)(high);                  \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1985
  assert(mask_bits((intptr_t)l, sizeof(T)-1) == 0 && \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1986
         mask_bits((intptr_t)h, sizeof(T)-1) == 0,   \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1987
         "bounded region must be properly aligned"); \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1988
  T* p       = (T*)(start_p);               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1989
  T* end     = p + (count);                 \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1990
  if (p < l) p = l;                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1991
  if (end > h) end = h;                     \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1992
  while (p < end) {                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1993
    (assert_fn)(p);                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1994
    do_oop;                                 \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1995
    ++p;                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1996
  }                                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1997
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1998
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  1999
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2000
// The following macros call specialized macros, passing either oop or
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2001
// narrowOop as the specialization type.  These test the UseCompressedOops
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2002
// flag.
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2003
#define InstanceKlass_OOP_MAP_ITERATE(obj, do_oop, assert_fn)            \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2004
{                                                                        \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2005
  /* Compute oopmap block range. The common case                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2006
     is nonstatic_oop_map_size == 1. */                                  \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2007
  OopMapBlock* map           = start_of_nonstatic_oop_maps();            \
3693
af387bf37e8d 6861660: OopMapBlock count/size confusion
jcoomes
parents: 3576
diff changeset
  2008
  OopMapBlock* const end_map = map + nonstatic_oop_map_count();          \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2009
  if (UseCompressedOops) {                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2010
    while (map < end_map) {                                              \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2011
      InstanceKlass_SPECIALIZED_OOP_ITERATE(narrowOop,                   \
3693
af387bf37e8d 6861660: OopMapBlock count/size confusion
jcoomes
parents: 3576
diff changeset
  2012
        obj->obj_field_addr<narrowOop>(map->offset()), map->count(),     \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2013
        do_oop, assert_fn)                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2014
      ++map;                                                             \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2015
    }                                                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2016
  } else {                                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2017
    while (map < end_map) {                                              \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2018
      InstanceKlass_SPECIALIZED_OOP_ITERATE(oop,                         \
3693
af387bf37e8d 6861660: OopMapBlock count/size confusion
jcoomes
parents: 3576
diff changeset
  2019
        obj->obj_field_addr<oop>(map->offset()), map->count(),           \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2020
        do_oop, assert_fn)                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2021
      ++map;                                                             \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2022
    }                                                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2023
  }                                                                      \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2024
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2025
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2026
#define InstanceKlass_OOP_MAP_REVERSE_ITERATE(obj, do_oop, assert_fn)    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2027
{                                                                        \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2028
  OopMapBlock* const start_map = start_of_nonstatic_oop_maps();          \
3693
af387bf37e8d 6861660: OopMapBlock count/size confusion
jcoomes
parents: 3576
diff changeset
  2029
  OopMapBlock* map             = start_map + nonstatic_oop_map_count();  \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2030
  if (UseCompressedOops) {                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2031
    while (start_map < map) {                                            \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2032
      --map;                                                             \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2033
      InstanceKlass_SPECIALIZED_OOP_REVERSE_ITERATE(narrowOop,           \
3693
af387bf37e8d 6861660: OopMapBlock count/size confusion
jcoomes
parents: 3576
diff changeset
  2034
        obj->obj_field_addr<narrowOop>(map->offset()), map->count(),     \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2035
        do_oop, assert_fn)                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2036
    }                                                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2037
  } else {                                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2038
    while (start_map < map) {                                            \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2039
      --map;                                                             \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2040
      InstanceKlass_SPECIALIZED_OOP_REVERSE_ITERATE(oop,                 \
3693
af387bf37e8d 6861660: OopMapBlock count/size confusion
jcoomes
parents: 3576
diff changeset
  2041
        obj->obj_field_addr<oop>(map->offset()), map->count(),           \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2042
        do_oop, assert_fn)                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2043
    }                                                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2044
  }                                                                      \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2045
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2046
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2047
#define InstanceKlass_BOUNDED_OOP_MAP_ITERATE(obj, low, high, do_oop,    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2048
                                              assert_fn)                 \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2049
{                                                                        \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2050
  /* Compute oopmap block range. The common case is                      \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2051
     nonstatic_oop_map_size == 1, so we accept the                       \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2052
     usually non-existent extra overhead of examining                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2053
     all the maps. */                                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2054
  OopMapBlock* map           = start_of_nonstatic_oop_maps();            \
3693
af387bf37e8d 6861660: OopMapBlock count/size confusion
jcoomes
parents: 3576
diff changeset
  2055
  OopMapBlock* const end_map = map + nonstatic_oop_map_count();          \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2056
  if (UseCompressedOops) {                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2057
    while (map < end_map) {                                              \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2058
      InstanceKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(narrowOop,           \
3693
af387bf37e8d 6861660: OopMapBlock count/size confusion
jcoomes
parents: 3576
diff changeset
  2059
        obj->obj_field_addr<narrowOop>(map->offset()), map->count(),     \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2060
        low, high,                                                       \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2061
        do_oop, assert_fn)                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2062
      ++map;                                                             \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2063
    }                                                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2064
  } else {                                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2065
    while (map < end_map) {                                              \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2066
      InstanceKlass_SPECIALIZED_BOUNDED_OOP_ITERATE(oop,                 \
3693
af387bf37e8d 6861660: OopMapBlock count/size confusion
jcoomes
parents: 3576
diff changeset
  2067
        obj->obj_field_addr<oop>(map->offset()), map->count(),           \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2068
        low, high,                                                       \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2069
        do_oop, assert_fn)                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2070
      ++map;                                                             \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2071
    }                                                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2072
  }                                                                      \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2073
}
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2074
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2075
void InstanceKlass::oop_follow_contents(oop obj) {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2076
  assert(obj != NULL, "can't follow the content of NULL object");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2077
  MarkSweep::follow_klass(obj->klass());
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2078
  InstanceKlass_OOP_MAP_ITERATE( \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2079
    obj, \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2080
    MarkSweep::mark_and_push(p), \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2081
    assert_is_in_closed_subset)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2082
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2083
15482
470d0b0c09f1 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 15216
diff changeset
  2084
#if INCLUDE_ALL_GCS
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2085
void InstanceKlass::oop_follow_contents(ParCompactionManager* cm,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2086
                                        oop obj) {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2087
  assert(obj != NULL, "can't follow the content of NULL object");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2088
  PSParallelCompact::follow_klass(cm, obj->klass());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2089
  // Only mark the header and let the scan of the meta-data mark
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2090
  // everything else.
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2091
  InstanceKlass_OOP_MAP_ITERATE( \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2092
    obj, \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2093
    PSParallelCompact::mark_and_push(cm, p), \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2094
    assert_is_in)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2095
}
15482
470d0b0c09f1 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 15216
diff changeset
  2096
#endif // INCLUDE_ALL_GCS
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2097
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2098
// closure's do_metadata() method dictates whether the given closure should be
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2099
// applied to the klass ptr in the object header.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2100
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2101
#define if_do_metadata_checked(closure, nv_suffix)                    \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2102
  /* Make sure the non-virtual and the virtual versions match. */     \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2103
  assert(closure->do_metadata##nv_suffix() == closure->do_metadata(), \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2104
      "Inconsistency in do_metadata");                                \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2105
  if (closure->do_metadata##nv_suffix())
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2106
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2107
#define InstanceKlass_OOP_OOP_ITERATE_DEFN(OopClosureType, nv_suffix)        \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2108
                                                                             \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2109
int InstanceKlass::oop_oop_iterate##nv_suffix(oop obj, OopClosureType* closure) { \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2110
  SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::ik);\
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2111
  /* header */                                                          \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2112
  if_do_metadata_checked(closure, nv_suffix) {                          \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2113
    closure->do_klass##nv_suffix(obj->klass());                         \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2114
  }                                                                     \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2115
  InstanceKlass_OOP_MAP_ITERATE(                                        \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2116
    obj,                                                                \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2117
    SpecializationStats::                                               \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2118
      record_do_oop_call##nv_suffix(SpecializationStats::ik);           \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2119
    (closure)->do_oop##nv_suffix(p),                                    \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2120
    assert_is_in_closed_subset)                                         \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2121
  return size_helper();                                                 \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2122
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2123
15482
470d0b0c09f1 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 15216
diff changeset
  2124
#if INCLUDE_ALL_GCS
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2125
#define InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN(OopClosureType, nv_suffix) \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2126
                                                                                \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2127
int InstanceKlass::oop_oop_iterate_backwards##nv_suffix(oop obj,                \
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2128
                                              OopClosureType* closure) {        \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2129
  SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::ik); \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2130
  /* header */                                                                  \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2131
  if_do_metadata_checked(closure, nv_suffix) {                                  \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2132
    closure->do_klass##nv_suffix(obj->klass());                                 \
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2133
  }                                                                             \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2134
  /* instance variables */                                                      \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2135
  InstanceKlass_OOP_MAP_REVERSE_ITERATE(                                        \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2136
    obj,                                                                        \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2137
    SpecializationStats::record_do_oop_call##nv_suffix(SpecializationStats::ik);\
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2138
    (closure)->do_oop##nv_suffix(p),                                            \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2139
    assert_is_in_closed_subset)                                                 \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2140
   return size_helper();                                                        \
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2141
}
15482
470d0b0c09f1 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 15216
diff changeset
  2142
#endif // INCLUDE_ALL_GCS
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2143
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2144
#define InstanceKlass_OOP_OOP_ITERATE_DEFN_m(OopClosureType, nv_suffix) \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2145
                                                                        \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2146
int InstanceKlass::oop_oop_iterate##nv_suffix##_m(oop obj,              \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2147
                                                  OopClosureType* closure, \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2148
                                                  MemRegion mr) {          \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2149
  SpecializationStats::record_iterate_call##nv_suffix(SpecializationStats::ik);\
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2150
  if_do_metadata_checked(closure, nv_suffix) {                           \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2151
    if (mr.contains(obj)) {                                              \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2152
      closure->do_klass##nv_suffix(obj->klass());                        \
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2153
    }                                                                    \
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2154
  }                                                                      \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2155
  InstanceKlass_BOUNDED_OOP_MAP_ITERATE(                                 \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2156
    obj, mr.start(), mr.end(),                                           \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2157
    (closure)->do_oop##nv_suffix(p),                                     \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2158
    assert_is_in_closed_subset)                                          \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2159
  return size_helper();                                                  \
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2160
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2161
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2162
ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_DEFN)
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2163
ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_DEFN)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2164
ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_DEFN_m)
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2165
ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_DEFN_m)
15482
470d0b0c09f1 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 15216
diff changeset
  2166
#if INCLUDE_ALL_GCS
1374
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2167
ALL_OOP_OOP_ITERATE_CLOSURES_1(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
4c24294029a9 6711316: Open source the Garbage-First garbage collector
ysr
parents: 360
diff changeset
  2168
ALL_OOP_OOP_ITERATE_CLOSURES_2(InstanceKlass_OOP_OOP_ITERATE_BACKWARDS_DEFN)
15482
470d0b0c09f1 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 15216
diff changeset
  2169
#endif // INCLUDE_ALL_GCS
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2170
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2171
int InstanceKlass::oop_adjust_pointers(oop obj) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2172
  int size = size_helper();
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2173
  InstanceKlass_OOP_MAP_ITERATE( \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2174
    obj, \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2175
    MarkSweep::adjust_pointer(p), \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2176
    assert_is_in)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2177
  return size;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2178
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2179
15482
470d0b0c09f1 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 15216
diff changeset
  2180
#if INCLUDE_ALL_GCS
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2181
void InstanceKlass::oop_push_contents(PSPromotionManager* pm, oop obj) {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2182
  InstanceKlass_OOP_MAP_REVERSE_ITERATE( \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2183
    obj, \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2184
    if (PSScavenge::should_scavenge(p)) { \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2185
      pm->claim_or_forward_depth(p); \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2186
    }, \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2187
    assert_nothing )
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2188
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2189
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2190
int InstanceKlass::oop_update_pointers(ParCompactionManager* cm, oop obj) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2191
  int size = size_helper();
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2192
  InstanceKlass_OOP_MAP_ITERATE( \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2193
    obj, \
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  2194
    PSParallelCompact::adjust_pointer(p), \
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2195
    assert_is_in)
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2196
  return size;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2197
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2198
15482
470d0b0c09f1 8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents: 15216
diff changeset
  2199
#endif // INCLUDE_ALL_GCS
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2200
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2201
void InstanceKlass::clean_implementors_list(BoolObjectClosure* is_alive) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2202
  assert(is_loader_alive(is_alive), "this klass should be live");
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  2203
  if (is_interface()) {
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  2204
    if (ClassUnloading) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2205
      Klass* impl = implementor();
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  2206
      if (impl != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2207
        if (!impl->is_loader_alive(is_alive)) {
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  2208
          // remove this guy
15873
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2209
          Klass** klass = adr_implementor();
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2210
          assert(klass != NULL, "null klass");
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2211
          if (klass != NULL) {
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2212
            *klass = NULL;
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2213
          }
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  2214
        }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2215
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2216
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2217
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2218
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2219
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2220
void InstanceKlass::clean_method_data(BoolObjectClosure* is_alive) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2221
  for (int m = 0; m < methods()->length(); m++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2222
    MethodData* mdo = methods()->at(m)->method_data();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2223
    if (mdo != NULL) {
22916
582da2ed4dfa 8031752: Failed speculative optimizations should be reattempted when root of compilation is different
roland
parents: 22881
diff changeset
  2224
      mdo->clean_method_data(is_alive);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2225
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2226
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2227
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2228
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2229
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2230
static void remove_unshareable_in_class(Klass* k) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2231
  // remove klass's unshareable info
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2232
  k->remove_unshareable_info();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2233
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2234
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2235
void InstanceKlass::remove_unshareable_info() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2236
  Klass::remove_unshareable_info();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2237
  // Unlink the class
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2238
  if (is_linked()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2239
    unlink_class();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2240
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2241
  init_implementor();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2242
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2243
  constants()->remove_unshareable_info();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2244
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2245
  for (int i = 0; i < methods()->length(); i++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2246
    Method* m = methods()->at(i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2247
    m->remove_unshareable_info();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2248
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2249
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2250
  // do array classes also.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2251
  array_klasses_do(remove_unshareable_in_class);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2252
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2253
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2254
void restore_unshareable_in_class(Klass* k, TRAPS) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2255
  k->restore_unshareable_info(CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2256
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2257
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2258
void InstanceKlass::restore_unshareable_info(TRAPS) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2259
  Klass::restore_unshareable_info(CHECK);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2260
  instanceKlassHandle ik(THREAD, this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2261
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2262
  Array<Method*>* methods = ik->methods();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2263
  int num_methods = methods->length();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2264
  for (int index2 = 0; index2 < num_methods; ++index2) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2265
    methodHandle m(THREAD, methods->at(index2));
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  2266
    m->restore_unshareable_info(CHECK);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2267
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2268
  if (JvmtiExport::has_redefined_a_class()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2269
    // Reinitialize vtable because RedefineClasses may have changed some
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2270
    // entries in this vtable for super classes so the CDS vtable might
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2271
    // point to old or obsolete entries.  RedefineClasses doesn't fix up
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2272
    // vtables in the shared system dictionary, only the main one.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2273
    // It also redefines the itable too so fix that too.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2274
    ResourceMark rm(THREAD);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2275
    ik->vtable()->initialize_vtable(false, CHECK);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2276
    ik->itable()->initialize_itable(false, CHECK);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2277
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2278
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2279
  // restore constant pool resolved references
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2280
  ik->constants()->restore_unshareable_info(CHECK);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2281
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2282
  ik->array_klasses_do(restore_unshareable_in_class, CHECK);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2283
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2284
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2285
static void clear_all_breakpoints(Method* m) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2286
  m->clear_all_breakpoints();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2287
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2288
17075
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2289
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2290
void InstanceKlass::notify_unload_class(InstanceKlass* ik) {
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2291
  // notify the debugger
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2292
  if (JvmtiExport::should_post_class_unload()) {
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2293
    JvmtiExport::post_class_unload(ik);
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2294
  }
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2295
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2296
  // notify ClassLoadingService of class unload
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2297
  ClassLoadingService::notify_class_unloaded(ik);
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2298
}
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2299
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2300
void InstanceKlass::release_C_heap_structures(InstanceKlass* ik) {
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2301
  // Clean up C heap
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2302
  ik->release_C_heap_structures();
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2303
  ik->constants()->release_C_heap_structures();
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2304
}
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2305
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2306
void InstanceKlass::release_C_heap_structures() {
17075
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2307
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2308
  // Can't release the constant pool here because the constant pool can be
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2309
  // deallocated separately from the InstanceKlass for default methods and
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2310
  // redefine classes.
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2311
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2312
  // Deallocate oop map cache
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2313
  if (_oop_map_cache != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2314
    delete _oop_map_cache;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2315
    _oop_map_cache = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2316
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2317
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2318
  // Deallocate JNI identifiers for jfieldIDs
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2319
  JNIid::deallocate(jni_ids());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2320
  set_jni_ids(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2321
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2322
  jmethodID* jmeths = methods_jmethod_ids_acquire();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2323
  if (jmeths != (jmethodID*)NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2324
    release_set_methods_jmethod_ids(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2325
    FreeHeap(jmeths);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2326
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2327
17830
6bb6155c908a 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 17828
diff changeset
  2328
  // Deallocate MemberNameTable
6bb6155c908a 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 17828
diff changeset
  2329
  {
6bb6155c908a 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 17828
diff changeset
  2330
    Mutex* lock_or_null = SafepointSynchronize::is_at_safepoint() ? NULL : MemberNameTable_lock;
6bb6155c908a 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 17828
diff changeset
  2331
    MutexLockerEx ml(lock_or_null, Mutex::_no_safepoint_check_flag);
6bb6155c908a 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 17828
diff changeset
  2332
    MemberNameTable* mnt = member_names();
6bb6155c908a 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 17828
diff changeset
  2333
    if (mnt != NULL) {
6bb6155c908a 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 17828
diff changeset
  2334
      delete mnt;
6bb6155c908a 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 17828
diff changeset
  2335
      set_member_names(NULL);
6bb6155c908a 8013945: CMS fatal error: must own lock MemberNameTable_lock
sspitsyn
parents: 17828
diff changeset
  2336
    }
17029
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2337
  }
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2338
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2339
  // release dependencies
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2340
  nmethodBucket* b = _dependencies;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2341
  _dependencies = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2342
  while (b != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2343
    nmethodBucket* next = b->next();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2344
    delete b;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2345
    b = next;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2346
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2347
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2348
  // Deallocate breakpoint records
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2349
  if (breakpoints() != 0x0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2350
    methods_do(clear_all_breakpoints);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2351
    assert(breakpoints() == 0x0, "should have cleared breakpoints");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2352
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2353
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2354
  // deallocate information about previous versions
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2355
  if (_previous_versions != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2356
    for (int i = _previous_versions->length() - 1; i >= 0; i--) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2357
      PreviousVersionNode * pv_node = _previous_versions->at(i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2358
      delete pv_node;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2359
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2360
    delete _previous_versions;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2361
    _previous_versions = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2362
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2363
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2364
  // deallocate the cached class file
18940
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  2365
  if (_cached_class_file != NULL) {
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  2366
    os::free(_cached_class_file, mtClass);
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  2367
    _cached_class_file = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2368
  }
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2369
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2370
  // Decrement symbol reference counts associated with the unloaded class.
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2371
  if (_name != NULL) _name->decrement_refcount();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2372
  // unreference array name derived from this class name (arrays of an unloaded
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2373
  // class can't be referenced anymore).
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2374
  if (_array_name != NULL)  _array_name->decrement_refcount();
13201
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2375
  if (_source_debug_extension != NULL) FREE_C_HEAP_ARRAY(char, _source_debug_extension, mtClass);
15104
f5d78994619f 8005048: NMT: #loaded classes needs to just show the # defined classes
zgu
parents: 14583
diff changeset
  2376
f5d78994619f 8005048: NMT: #loaded classes needs to just show the # defined classes
zgu
parents: 14583
diff changeset
  2377
  assert(_total_instanceKlass_count >= 1, "Sanity check");
f5d78994619f 8005048: NMT: #loaded classes needs to just show the # defined classes
zgu
parents: 14583
diff changeset
  2378
  Atomic::dec(&_total_instanceKlass_count);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2379
}
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2380
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2381
void InstanceKlass::set_source_debug_extension(char* array, int length) {
13201
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2382
  if (array == NULL) {
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2383
    _source_debug_extension = NULL;
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2384
  } else {
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2385
    // Adding one to the attribute length in order to store a null terminator
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2386
    // character could cause an overflow because the attribute length is
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2387
    // already coded with an u4 in the classfile, but in practice, it's
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2388
    // unlikely to happen.
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2389
    assert((length+1) > length, "Overflow checking");
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2390
    char* sde = NEW_C_HEAP_ARRAY(char, (length + 1), mtClass);
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2391
    for (int i = 0; i < length; i++) {
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2392
      sde[i] = array[i];
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2393
    }
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2394
    sde[length] = '\0';
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2395
    _source_debug_extension = sde;
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2396
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2397
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2398
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2399
address InstanceKlass::static_field_addr(int offset) {
20282
7f9cbdf89af2 7195622: CheckUnhandledOops has limited usefulness now
hseigel
parents: 20065
diff changeset
  2400
  return (address)(offset + InstanceMirrorKlass::offset_of_static_fields() + cast_from_oop<intptr_t>(java_mirror()));
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  2401
}
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  2402
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  2403
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2404
const char* InstanceKlass::signature_name() const {
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2405
  int hash_len = 0;
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2406
  char hash_buf[40];
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2407
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2408
  // If this is an anonymous class, append a hash to make the name unique
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2409
  if (is_anonymous()) {
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2410
    intptr_t hash = (java_mirror() != NULL) ? java_mirror()->identity_hash() : 0;
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2411
    sprintf(hash_buf, "/" UINTX_FORMAT, (uintx)hash);
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2412
    hash_len = (int)strlen(hash_buf);
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2413
  }
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2414
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2415
  // Get the internal name as a c string
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2416
  const char* src = (const char*) (name()->as_C_string());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2417
  const int src_length = (int)strlen(src);
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2418
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2419
  char* dest = NEW_RESOURCE_ARRAY(char, src_length + hash_len + 3);
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2420
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2421
  // Add L as type indicator
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2422
  int dest_index = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2423
  dest[dest_index++] = 'L';
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2424
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2425
  // Add the actual class name
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2426
  for (int src_index = 0; src_index < src_length; ) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2427
    dest[dest_index++] = src[src_index++];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2428
  }
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2429
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2430
  // If we have a hash, append it
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2431
  for (int hash_index = 0; hash_index < hash_len; ) {
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2432
    dest[dest_index++] = hash_buf[hash_index++];
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2433
  }
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2434
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2435
  // Add the semicolon and the NULL
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2436
  dest[dest_index++] = ';';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2437
  dest[dest_index] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2438
  return dest;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2439
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2440
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2441
// different verisons of is_same_class_package
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2442
bool InstanceKlass::is_same_class_package(Klass* class2) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2443
  Klass* class1 = this;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2444
  oop classloader1 = InstanceKlass::cast(class1)->class_loader();
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  2445
  Symbol* classname1 = class1->name();
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  2446
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  2447
  if (class2->oop_is_objArray()) {
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13738
diff changeset
  2448
    class2 = ObjArrayKlass::cast(class2)->bottom_klass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2449
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2450
  oop classloader2;
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  2451
  if (class2->oop_is_instance()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2452
    classloader2 = InstanceKlass::cast(class2)->class_loader();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2453
  } else {
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  2454
    assert(class2->oop_is_typeArray(), "should be type array");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2455
    classloader2 = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2456
  }
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  2457
  Symbol* classname2 = class2->name();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2458
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2459
  return InstanceKlass::is_same_class_package(classloader1, classname1,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2460
                                              classloader2, classname2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2461
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2462
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2463
bool InstanceKlass::is_same_class_package(oop classloader2, Symbol* classname2) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2464
  Klass* class1 = this;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2465
  oop classloader1 = InstanceKlass::cast(class1)->class_loader();
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  2466
  Symbol* classname1 = class1->name();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2467
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2468
  return InstanceKlass::is_same_class_package(classloader1, classname1,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2469
                                              classloader2, classname2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2470
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2471
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2472
// return true if two classes are in the same package, classloader
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2473
// and classname information is enough to determine a class's package
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2474
bool InstanceKlass::is_same_class_package(oop class_loader1, Symbol* class_name1,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2475
                                          oop class_loader2, Symbol* class_name2) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2476
  if (class_loader1 != class_loader2) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2477
    return false;
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2478
  } else if (class_name1 == class_name2) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2479
    return true;                // skip painful bytewise comparison
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2480
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2481
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2482
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2483
    // The Symbol*'s are in UTF8 encoding. Since we only need to check explicitly
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2484
    // for ASCII characters ('/', 'L', '['), we can keep them in UTF8 encoding.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2485
    // Otherwise, we just compare jbyte values between the strings.
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2486
    const jbyte *name1 = class_name1->base();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2487
    const jbyte *name2 = class_name2->base();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2488
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2489
    const jbyte *last_slash1 = UTF8::strrchr(name1, class_name1->utf8_length(), '/');
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2490
    const jbyte *last_slash2 = UTF8::strrchr(name2, class_name2->utf8_length(), '/');
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2491
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2492
    if ((last_slash1 == NULL) || (last_slash2 == NULL)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2493
      // One of the two doesn't have a package.  Only return true
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2494
      // if the other one also doesn't have a package.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2495
      return last_slash1 == last_slash2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2496
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2497
      // Skip over '['s
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2498
      if (*name1 == '[') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2499
        do {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2500
          name1++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2501
        } while (*name1 == '[');
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2502
        if (*name1 != 'L') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2503
          // Something is terribly wrong.  Shouldn't be here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2504
          return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2505
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2506
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2507
      if (*name2 == '[') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2508
        do {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2509
          name2++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2510
        } while (*name2 == '[');
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2511
        if (*name2 != 'L') {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2512
          // Something is terribly wrong.  Shouldn't be here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2513
          return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2514
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2515
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2516
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2517
      // Check that package part is identical
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2518
      int length1 = last_slash1 - name1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2519
      int length2 = last_slash2 - name2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2520
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2521
      return UTF8::equal(name1, length1, name2, length2);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2522
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2523
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2524
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2525
2264
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2526
// Returns true iff super_method can be overridden by a method in targetclassname
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2527
// See JSL 3rd edition 8.4.6.1
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2528
// Assumes name-signature match
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2529
// "this" is InstanceKlass of super_method which must exist
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2530
// note that the InstanceKlass of the method in the targetclassname has not always been created yet
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2531
bool InstanceKlass::is_override(methodHandle super_method, Handle targetclassloader, Symbol* targetclassname, TRAPS) {
2264
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2532
   // Private methods can not be overridden
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2533
   if (super_method->is_private()) {
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2534
     return false;
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2535
   }
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2536
   // If super method is accessible, then override
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2537
   if ((super_method->is_protected()) ||
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2538
       (super_method->is_public())) {
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2539
     return true;
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2540
   }
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2541
   // Package-private methods are not inherited outside of package
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2542
   assert(super_method->is_package_private(), "must be package private");
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2543
   return(is_same_class_package(targetclassloader(), targetclassname));
2264
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2544
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2545
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2546
/* defined for now in jvm.cpp, for historical reasons *--
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2547
Klass* InstanceKlass::compute_enclosing_class_impl(instanceKlassHandle self,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2548
                                                     Symbol*& simple_name_result, TRAPS) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2549
  ...
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2550
}
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2551
*/
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2552
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2553
// tell if two classes have the same enclosing class (at package level)
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2554
bool InstanceKlass::is_same_package_member_impl(instanceKlassHandle class1,
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2555
                                                Klass* class2_oop, TRAPS) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2556
  if (class2_oop == class1())                       return true;
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  2557
  if (!class2_oop->oop_is_instance())  return false;
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2558
  instanceKlassHandle class2(THREAD, class2_oop);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2559
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2560
  // must be in same package before we try anything else
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2561
  if (!class1->is_same_class_package(class2->class_loader(), class2->name()))
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2562
    return false;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2563
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2564
  // As long as there is an outer1.getEnclosingClass,
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2565
  // shift the search outward.
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2566
  instanceKlassHandle outer1 = class1;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2567
  for (;;) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2568
    // As we walk along, look for equalities between outer1 and class2.
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2569
    // Eventually, the walks will terminate as outer1 stops
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2570
    // at the top-level class around the original class.
4496
c5a0b15a8e7d 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 4094
diff changeset
  2571
    bool ignore_inner_is_member;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2572
    Klass* next = outer1->compute_enclosing_class(&ignore_inner_is_member,
4496
c5a0b15a8e7d 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 4094
diff changeset
  2573
                                                    CHECK_false);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2574
    if (next == NULL)  break;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2575
    if (next == class2())  return true;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2576
    outer1 = instanceKlassHandle(THREAD, next);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2577
  }
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2578
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2579
  // Now do the same for class2.
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2580
  instanceKlassHandle outer2 = class2;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2581
  for (;;) {
4496
c5a0b15a8e7d 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 4094
diff changeset
  2582
    bool ignore_inner_is_member;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2583
    Klass* next = outer2->compute_enclosing_class(&ignore_inner_is_member,
4496
c5a0b15a8e7d 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 4094
diff changeset
  2584
                                                    CHECK_false);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2585
    if (next == NULL)  break;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2586
    // Might as well check the new outer against all available values.
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2587
    if (next == class1())  return true;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2588
    if (next == outer1())  return true;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2589
    outer2 = instanceKlassHandle(THREAD, next);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2590
  }
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2591
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2592
  // If by this point we have not found an equality between the
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2593
  // two classes, we know they are in separate package members.
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2594
  return false;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2595
}
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2596
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2597
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2598
jint InstanceKlass::compute_modifier_flags(TRAPS) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2599
  jint access = access_flags().as_int();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2600
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2601
  // But check if it happens to be member class.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2602
  instanceKlassHandle ik(THREAD, this);
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2603
  InnerClassesIterator iter(ik);
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2604
  for (; !iter.done(); iter.next()) {
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2605
    int ioff = iter.inner_class_info_index();
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2606
    // Inner class attribute can be zero, skip it.
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2607
    // Strange but true:  JVM spec. allows null inner class refs.
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2608
    if (ioff == 0) continue;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2609
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2610
    // only look at classes that are already loaded
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2611
    // since we are looking for the flags for our self.
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2612
    Symbol* inner_name = ik->constants()->klass_name_at(ioff);
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2613
    if ((ik->name() == inner_name)) {
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2614
      // This is really a member class.
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2615
      access = iter.inner_access_flags();
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2616
      break;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2617
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2618
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2619
  // Remember to strip ACC_SUPER bit
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2620
  return (access & (~JVM_ACC_SUPER)) & JVM_ACC_WRITTEN_FLAGS;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2621
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2622
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2623
jint InstanceKlass::jvmti_class_status() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2624
  jint result = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2625
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2626
  if (is_linked()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2627
    result |= JVMTI_CLASS_STATUS_VERIFIED | JVMTI_CLASS_STATUS_PREPARED;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2628
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2629
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2630
  if (is_initialized()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2631
    assert(is_linked(), "Class status is not consistent");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2632
    result |= JVMTI_CLASS_STATUS_INITIALIZED;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2633
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2634
  if (is_in_error_state()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2635
    result |= JVMTI_CLASS_STATUS_ERROR;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2636
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2637
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2638
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2639
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2640
Method* InstanceKlass::method_at_itable(Klass* holder, int index, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2641
  itableOffsetEntry* ioe = (itableOffsetEntry*)start_of_itable();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2642
  int method_table_offset_in_words = ioe->offset()/wordSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2643
  int nof_interfaces = (method_table_offset_in_words - itable_offset_in_words())
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2644
                       / itableOffsetEntry::size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2645
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2646
  for (int cnt = 0 ; ; cnt ++, ioe ++) {
2131
98f9cef66a34 6810672: Comment typos
twisti
parents: 1388
diff changeset
  2647
    // If the interface isn't implemented by the receiver class,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2648
    // the VM should throw IncompatibleClassChangeError.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2649
    if (cnt >= nof_interfaces) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2650
      THROW_NULL(vmSymbols::java_lang_IncompatibleClassChangeError());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2651
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2652
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2653
    Klass* ik = ioe->interface_klass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2654
    if (ik == holder) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2655
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2656
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2657
  itableMethodEntry* ime = ioe->first_method_entry(this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2658
  Method* m = ime[index].method();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2659
  if (m == NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2660
    THROW_NULL(vmSymbols::java_lang_AbstractMethodError());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2661
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2662
  return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2663
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2664
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2665
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2666
#if INCLUDE_JVMTI
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2667
// update default_methods for redefineclasses for methods that are
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2668
// not yet in the vtable due to concurrent subclass define and superinterface
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2669
// redefinition
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2670
// Note: those in the vtable, should have been updated via adjust_method_entries
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2671
void InstanceKlass::adjust_default_methods(Method** old_methods, Method** new_methods,
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2672
                                           int methods_length, bool* trace_name_printed) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2673
  // search the default_methods for uses of either obsolete or EMCP methods
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2674
  if (default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2675
    for (int j = 0; j < methods_length; j++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2676
      Method* old_method = old_methods[j];
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2677
      Method* new_method = new_methods[j];
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2678
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2679
      for (int index = 0; index < default_methods()->length(); index ++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2680
        if (default_methods()->at(index) == old_method) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2681
          default_methods()->at_put(index, new_method);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2682
          if (RC_TRACE_IN_RANGE(0x00100000, 0x00400000)) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2683
            if (!(*trace_name_printed)) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2684
              // RC_TRACE_MESG macro has an embedded ResourceMark
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2685
              RC_TRACE_MESG(("adjust: klassname=%s default methods from name=%s",
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2686
                             external_name(),
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2687
                             old_method->method_holder()->external_name()));
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2688
              *trace_name_printed = true;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2689
            }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2690
            RC_TRACE(0x00100000, ("default method update: %s(%s) ",
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2691
                                  new_method->name()->as_C_string(),
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2692
                                  new_method->signature()->as_C_string()));
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2693
          }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2694
        }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2695
      }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2696
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2697
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2698
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2699
#endif // INCLUDE_JVMTI
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2700
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2701
// On-stack replacement stuff
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2702
void InstanceKlass::add_osr_nmethod(nmethod* n) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2703
  // only one compilation can be active
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2704
  NEEDS_CLEANUP
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2705
  // This is a short non-blocking critical region, so the no safepoint check is ok.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2706
  OsrList_lock->lock_without_safepoint_check();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2707
  assert(n->is_osr_method(), "wrong kind of nmethod");
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  2708
  n->set_osr_link(osr_nmethods_head());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2709
  set_osr_nmethods_head(n);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2710
  // Raise the highest osr level if necessary
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2711
  if (TieredCompilation) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2712
    Method* m = n->method();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2713
    m->set_highest_osr_comp_level(MAX2(m->highest_osr_comp_level(), n->comp_level()));
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2714
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2715
  // Remember to unlock again
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2716
  OsrList_lock->unlock();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2717
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2718
  // Get rid of the osr methods for the same bci that have lower levels.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2719
  if (TieredCompilation) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2720
    for (int l = CompLevel_limited_profile; l < n->comp_level(); l++) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2721
      nmethod *inv = lookup_osr_nmethod(n->method(), n->osr_entry_bci(), l, true);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2722
      if (inv != NULL && inv->is_in_use()) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2723
        inv->make_not_entrant();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2724
      }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2725
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2726
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2727
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2728
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2729
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2730
void InstanceKlass::remove_osr_nmethod(nmethod* n) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2731
  // This is a short non-blocking critical region, so the no safepoint check is ok.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2732
  OsrList_lock->lock_without_safepoint_check();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2733
  assert(n->is_osr_method(), "wrong kind of nmethod");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2734
  nmethod* last = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2735
  nmethod* cur  = osr_nmethods_head();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2736
  int max_level = CompLevel_none;  // Find the max comp level excluding n
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2737
  Method* m = n->method();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2738
  // Search for match
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2739
  while(cur != NULL && cur != n) {
22920
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  2740
    if (TieredCompilation && m == cur->method()) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2741
      // Find max level before n
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2742
      max_level = MAX2(max_level, cur->comp_level());
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2743
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2744
    last = cur;
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  2745
    cur = cur->osr_link();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2746
  }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2747
  nmethod* next = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2748
  if (cur == n) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2749
    next = cur->osr_link();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2750
    if (last == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2751
      // Remove first element
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2752
      set_osr_nmethods_head(next);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2753
    } else {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2754
      last->set_osr_link(next);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2755
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2756
  }
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  2757
  n->set_osr_link(NULL);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2758
  if (TieredCompilation) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2759
    cur = next;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2760
    while (cur != NULL) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2761
      // Find max level after n
22920
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  2762
      if (m == cur->method()) {
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  2763
        max_level = MAX2(max_level, cur->comp_level());
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  2764
      }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2765
      cur = cur->osr_link();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2766
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2767
    m->set_highest_osr_comp_level(max_level);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2768
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2769
  // Remember to unlock again
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2770
  OsrList_lock->unlock();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2771
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2772
17370
59a0620561fa 8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents: 17078
diff changeset
  2773
nmethod* InstanceKlass::lookup_osr_nmethod(const Method* m, int bci, int comp_level, bool match_level) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2774
  // This is a short non-blocking critical region, so the no safepoint check is ok.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2775
  OsrList_lock->lock_without_safepoint_check();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2776
  nmethod* osr = osr_nmethods_head();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2777
  nmethod* best = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2778
  while (osr != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2779
    assert(osr->is_osr_method(), "wrong kind of nmethod found in chain");
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2780
    // There can be a time when a c1 osr method exists but we are waiting
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2781
    // for a c2 version. When c2 completes its osr nmethod we will trash
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2782
    // the c1 version and only be able to find the c2 version. However
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2783
    // while we overflow in the c1 code at back branches we don't want to
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2784
    // try and switch to the same code as we are already running
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2785
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2786
    if (osr->method() == m &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2787
        (bci == InvocationEntryBci || osr->osr_entry_bci() == bci)) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2788
      if (match_level) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2789
        if (osr->comp_level() == comp_level) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2790
          // Found a match - return it.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2791
          OsrList_lock->unlock();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2792
          return osr;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2793
        }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2794
      } else {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2795
        if (best == NULL || (osr->comp_level() > best->comp_level())) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2796
          if (osr->comp_level() == CompLevel_highest_tier) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2797
            // Found the best possible - return it.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2798
            OsrList_lock->unlock();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2799
            return osr;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2800
          }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2801
          best = osr;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2802
        }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2803
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2804
    }
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  2805
    osr = osr->osr_link();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2806
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2807
  OsrList_lock->unlock();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2808
  if (best != NULL && best->comp_level() >= comp_level && match_level == false) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2809
    return best;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2810
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2811
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2812
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2813
17828
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2814
void InstanceKlass::add_member_name(int index, Handle mem_name) {
17029
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2815
  jweak mem_name_wref = JNIHandles::make_weak_global(mem_name);
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2816
  MutexLocker ml(MemberNameTable_lock);
17828
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2817
  assert(0 <= index && index < idnum_allocated_count(), "index is out of bounds");
17029
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2818
  DEBUG_ONLY(No_Safepoint_Verifier nsv);
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2819
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2820
  if (_member_names == NULL) {
17828
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2821
    _member_names = new (ResourceObj::C_HEAP, mtClass) MemberNameTable(idnum_allocated_count());
17029
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2822
  }
17828
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2823
  _member_names->add_member_name(index, mem_name_wref);
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2824
}
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2825
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2826
oop InstanceKlass::get_member_name(int index) {
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2827
  MutexLocker ml(MemberNameTable_lock);
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2828
  assert(0 <= index && index < idnum_allocated_count(), "index is out of bounds");
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2829
  DEBUG_ONLY(No_Safepoint_Verifier nsv);
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2830
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2831
  if (_member_names == NULL) {
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2832
    return NULL;
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2833
  }
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2834
  oop mem_name =_member_names->get_member_name(index);
17131ab4b3b5 8014288: perf regression in nashorn JDK-8008448.js test after 8008511 changes
sspitsyn
parents: 17826
diff changeset
  2835
  return mem_name;
17029
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2836
}
9ff8d7c0ed79 8008511: JSR 292: MemberName vmtarget refs to methods must be updated at class redefinition
sspitsyn
parents: 16672
diff changeset
  2837
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2838
// -----------------------------------------------------------------------------------------------------
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2839
// Printing
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2840
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2841
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2842
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2843
#define BULLET  " - "
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2844
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2845
static const char* state_names[] = {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2846
  "allocated", "loaded", "linked", "being_initialized", "fully_initialized", "initialization_error"
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2847
};
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2848
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2849
static void print_vtable(intptr_t* start, int len, outputStream* st) {
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2850
  for (int i = 0; i < len; i++) {
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2851
    intptr_t e = start[i];
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2852
    st->print("%d : " INTPTR_FORMAT, i, e);
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2853
    if (e != 0 && ((Metadata*)e)->is_metaspace_object()) {
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2854
      st->print(" ");
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2855
      ((Metadata*)e)->print_value_on(st);
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2856
    }
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2857
    st->cr();
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2858
  }
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2859
}
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2860
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2861
void InstanceKlass::print_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2862
  assert(is_klass(), "must be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2863
  Klass::print_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2864
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2865
  st->print(BULLET"instance size:     %d", size_helper());                        st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2866
  st->print(BULLET"klass size:        %d", size());                               st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2867
  st->print(BULLET"access:            "); access_flags().print_on(st);            st->cr();
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 24351
diff changeset
  2868
  st->print(BULLET"state:             "); st->print_cr("%s", state_names[_init_state]);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2869
  st->print(BULLET"name:              "); name()->print_value_on(st);             st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2870
  st->print(BULLET"super:             "); super()->print_value_on_maybe_null(st); st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2871
  st->print(BULLET"sub:               ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2872
  Klass* sub = subklass();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2873
  int n;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2874
  for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2875
    if (n < MaxSubklassPrintSize) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2876
      sub->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2877
      st->print("   ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2878
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2879
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2880
  if (n >= MaxSubklassPrintSize) st->print("(%d more klasses...)", n - MaxSubklassPrintSize);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2881
  st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2882
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2883
  if (is_interface()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2884
    st->print_cr(BULLET"nof implementors:  %d", nof_implementors());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2885
    if (nof_implementors() == 1) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2886
      st->print_cr(BULLET"implementor:    ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2887
      st->print("   ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2888
      implementor()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2889
      st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2890
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2891
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2892
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2893
  st->print(BULLET"arrays:            "); array_klasses()->print_value_on_maybe_null(st); st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2894
  st->print(BULLET"methods:           "); methods()->print_value_on(st);                  st->cr();
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2895
  if (Verbose || WizardMode) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2896
    Array<Method*>* method_array = methods();
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2897
    for (int i = 0; i < method_array->length(); i++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2898
      st->print("%d : ", i); method_array->at(i)->print_value(); st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2899
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2900
  }
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2901
  st->print(BULLET"method ordering:   "); method_ordering()->print_value_on(st);      st->cr();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2902
  st->print(BULLET"default_methods:   "); default_methods()->print_value_on(st);      st->cr();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2903
  if (Verbose && default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2904
    Array<Method*>* method_array = default_methods();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2905
    for (int i = 0; i < method_array->length(); i++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2906
      st->print("%d : ", i); method_array->at(i)->print_value(); st->cr();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2907
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2908
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2909
  if (default_vtable_indices() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2910
    st->print(BULLET"default vtable indices:   "); default_vtable_indices()->print_value_on(st);       st->cr();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2911
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2912
  st->print(BULLET"local interfaces:  "); local_interfaces()->print_value_on(st);      st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2913
  st->print(BULLET"trans. interfaces: "); transitive_interfaces()->print_value_on(st); st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2914
  st->print(BULLET"constants:         "); constants()->print_value_on(st);         st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2915
  if (class_loader_data() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2916
    st->print(BULLET"class loader data:  ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2917
    class_loader_data()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2918
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2919
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2920
  st->print(BULLET"host class:        "); host_klass()->print_value_on_maybe_null(st); st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2921
  if (source_file_name() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2922
    st->print(BULLET"source file:       ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2923
    source_file_name()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2924
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2925
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2926
  if (source_debug_extension() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2927
    st->print(BULLET"source debug extension:       ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2928
    st->print("%s", source_debug_extension());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2929
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2930
  }
15601
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  2931
  st->print(BULLET"class annotations:       "); class_annotations()->print_value_on(st); st->cr();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  2932
  st->print(BULLET"class type annotations:  "); class_type_annotations()->print_value_on(st); st->cr();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  2933
  st->print(BULLET"field annotations:       "); fields_annotations()->print_value_on(st); st->cr();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  2934
  st->print(BULLET"field type annotations:  "); fields_type_annotations()->print_value_on(st); st->cr();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2935
  {
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2936
    bool have_pv = false;
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2937
    PreviousVersionWalker pvw(Thread::current(), (InstanceKlass*)this);
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2938
    for (PreviousVersionNode * pv_node = pvw.next_previous_version();
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2939
         pv_node != NULL; pv_node = pvw.next_previous_version()) {
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2940
      if (!have_pv)
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2941
        st->print(BULLET"previous version:  ");
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2942
      have_pv = true;
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2943
      pv_node->prev_constant_pool()->print_value_on(st);
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2944
    }
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2945
    if (have_pv) st->cr();
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  2946
  } // pvw is cleaned up
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2947
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2948
  if (generic_signature() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2949
    st->print(BULLET"generic signature: ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2950
    generic_signature()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2951
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2952
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2953
  st->print(BULLET"inner classes:     "); inner_classes()->print_value_on(st);     st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2954
  st->print(BULLET"java mirror:       "); java_mirror()->print_value_on(st);       st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2955
  st->print(BULLET"vtable length      %d  (start addr: " INTPTR_FORMAT ")", vtable_length(), start_of_vtable());  st->cr();
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2956
  if (vtable_length() > 0 && (Verbose || WizardMode))  print_vtable(start_of_vtable(), vtable_length(), st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2957
  st->print(BULLET"itable length      %d (start addr: " INTPTR_FORMAT ")", itable_length(), start_of_itable()); st->cr();
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2958
  if (itable_length() > 0 && (Verbose || WizardMode))  print_vtable(start_of_itable(), itable_length(), st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2959
  st->print_cr(BULLET"---- static fields (%d words):", static_field_size());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2960
  FieldPrinter print_static_field(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2961
  ((InstanceKlass*)this)->do_local_static_fields(&print_static_field);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2962
  st->print_cr(BULLET"---- non-static fields (%d words):", nonstatic_field_size());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2963
  FieldPrinter print_nonstatic_field(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2964
  ((InstanceKlass*)this)->do_nonstatic_fields(&print_nonstatic_field);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2965
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2966
  st->print(BULLET"non-static oop maps: ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2967
  OopMapBlock* map     = start_of_nonstatic_oop_maps();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2968
  OopMapBlock* end_map = map + nonstatic_oop_map_count();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2969
  while (map < end_map) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2970
    st->print("%d-%d ", map->offset(), map->offset() + heapOopSize*(map->count() - 1));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2971
    map++;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2972
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2973
  st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2974
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2975
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2976
#endif //PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2977
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2978
void InstanceKlass::print_value_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2979
  assert(is_klass(), "must be klass");
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  2980
  if (Verbose || WizardMode)  access_flags().print_on(st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2981
  name()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2982
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2983
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2984
#ifndef PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2985
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2986
void FieldPrinter::do_field(fieldDescriptor* fd) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2987
  _st->print(BULLET);
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  2988
   if (_obj == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2989
     fd->print_on(_st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2990
     _st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2991
   } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2992
     fd->print_on_for(_st, _obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2993
     _st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2994
   }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2995
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2996
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2997
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2998
void InstanceKlass::oop_print_on(oop obj, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2999
  Klass::oop_print_on(obj, st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3000
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3001
  if (this == SystemDictionary::String_klass()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3002
    typeArrayOop value  = java_lang_String::value(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3003
    juint        offset = java_lang_String::offset(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3004
    juint        length = java_lang_String::length(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3005
    if (value != NULL &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3006
        value->is_typeArray() &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3007
        offset          <= (juint) value->length() &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3008
        offset + length <= (juint) value->length()) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3009
      st->print(BULLET"string: ");
22907
f978a4a64728 8035648: Don't use Handle in java_lang_String::print
stefank
parents: 22881
diff changeset
  3010
      java_lang_String::print(obj, st);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3011
      st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3012
      if (!WizardMode)  return;  // that is enough
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3013
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3014
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3015
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3016
  st->print_cr(BULLET"---- fields (total size %d words):", oop_size(obj));
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3017
  FieldPrinter print_field(st, obj);
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3018
  do_nonstatic_fields(&print_field);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3019
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3020
  if (this == SystemDictionary::Class_klass()) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3021
    st->print(BULLET"signature: ");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3022
    java_lang_Class::print_signature(obj, st);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3023
    st->cr();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3024
    Klass* mirrored_klass = java_lang_Class::as_Klass(obj);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3025
    st->print(BULLET"fake entry for mirror: ");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3026
    mirrored_klass->print_value_on_maybe_null(st);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3027
    st->cr();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3028
    Klass* array_klass = java_lang_Class::array_klass(obj);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3029
    st->print(BULLET"fake entry for array: ");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3030
    array_klass->print_value_on_maybe_null(st);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3031
    st->cr();
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3032
    st->print_cr(BULLET"fake entry for oop_size: %d", java_lang_Class::oop_size(obj));
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3033
    st->print_cr(BULLET"fake entry for static_oop_field_count: %d", java_lang_Class::static_oop_field_count(obj));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3034
    Klass* real_klass = java_lang_Class::as_Klass(obj);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3035
    if (real_klass != NULL && real_klass->oop_is_instance()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3036
      InstanceKlass::cast(real_klass)->do_local_static_fields(&print_field);
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3037
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3038
  } else if (this == SystemDictionary::MethodType_klass()) {
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3916
diff changeset
  3039
    st->print(BULLET"signature: ");
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8653
diff changeset
  3040
    java_lang_invoke_MethodType::print_signature(obj, st);
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3916
diff changeset
  3041
    st->cr();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3042
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3043
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3044
4584
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 4573
diff changeset
  3045
#endif //PRODUCT
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 4573
diff changeset
  3046
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3047
void InstanceKlass::oop_print_value_on(oop obj, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3048
  st->print("a ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3049
  name()->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3050
  obj->print_address_on(st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3051
  if (this == SystemDictionary::String_klass()
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3052
      && java_lang_String::value(obj) != NULL) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3053
    ResourceMark rm;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3054
    int len = java_lang_String::length(obj);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3055
    int plen = (len < 24 ? len : 12);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3056
    char* str = java_lang_String::as_utf8_string(obj, 0, plen);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3057
    st->print(" = \"%s\"", str);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3058
    if (len > plen)
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3059
      st->print("...[%d]", len);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3060
  } else if (this == SystemDictionary::Class_klass()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3061
    Klass* k = java_lang_Class::as_Klass(obj);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3062
    st->print(" = ");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3063
    if (k != NULL) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3064
      k->print_value_on(st);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3065
    } else {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3066
      const char* tname = type2name(java_lang_Class::primitive_type(obj));
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3067
      st->print("%s", tname ? tname : "type?");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3068
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3069
  } else if (this == SystemDictionary::MethodType_klass()) {
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3916
diff changeset
  3070
    st->print(" = ");
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8653
diff changeset
  3071
    java_lang_invoke_MethodType::print_signature(obj, st);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3072
  } else if (java_lang_boxing_object::is_instance(obj)) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3073
    st->print(" = ");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3074
    java_lang_boxing_object::print(obj, st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3075
  } else if (this == SystemDictionary::LambdaForm_klass()) {
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3076
    oop vmentry = java_lang_invoke_LambdaForm::vmentry(obj);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3077
    if (vmentry != NULL) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3078
      st->print(" => ");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3079
      vmentry->print_value_on(st);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3080
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3081
  } else if (this == SystemDictionary::MemberName_klass()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3082
    Metadata* vmtarget = java_lang_invoke_MemberName::vmtarget(obj);
13391
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3083
    if (vmtarget != NULL) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3084
      st->print(" = ");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3085
      vmtarget->print_value_on(st);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3086
    } else {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3087
      java_lang_invoke_MemberName::clazz(obj)->print_value_on(st);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3088
      st->print(".");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3089
      java_lang_invoke_MemberName::name(obj)->print_value_on(st);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3090
    }
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3091
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3092
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3093
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3094
const char* InstanceKlass::internal_name() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3095
  return external_name();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3096
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3097
15437
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3098
#if INCLUDE_SERVICES
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3099
// Size Statistics
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3100
void InstanceKlass::collect_statistics(KlassSizeStats *sz) const {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3101
  Klass::collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3102
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3103
  sz->_inst_size  = HeapWordSize * size_helper();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3104
  sz->_vtab_bytes = HeapWordSize * align_object_offset(vtable_length());
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3105
  sz->_itab_bytes = HeapWordSize * align_object_offset(itable_length());
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3106
  sz->_nonstatic_oopmap_bytes = HeapWordSize *
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3107
        ((is_interface() || is_anonymous()) ?
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3108
         align_object_offset(nonstatic_oop_map_size()) :
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3109
         nonstatic_oop_map_size());
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3110
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3111
  int n = 0;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3112
  n += (sz->_methods_array_bytes         = sz->count_array(methods()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3113
  n += (sz->_method_ordering_bytes       = sz->count_array(method_ordering()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3114
  n += (sz->_local_interfaces_bytes      = sz->count_array(local_interfaces()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3115
  n += (sz->_transitive_interfaces_bytes = sz->count_array(transitive_interfaces()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3116
  n += (sz->_fields_bytes                = sz->count_array(fields()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3117
  n += (sz->_inner_classes_bytes         = sz->count_array(inner_classes()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3118
  sz->_ro_bytes += n;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3119
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3120
  const ConstantPool* cp = constants();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3121
  if (cp) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3122
    cp->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3123
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3124
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3125
  const Annotations* anno = annotations();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3126
  if (anno) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3127
    anno->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3128
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3129
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3130
  const Array<Method*>* methods_array = methods();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3131
  if (methods()) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3132
    for (int i = 0; i < methods_array->length(); i++) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3133
      Method* method = methods_array->at(i);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3134
      if (method) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3135
        sz->_method_count ++;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3136
        method->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3137
      }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3138
    }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3139
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3140
}
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3141
#endif // INCLUDE_SERVICES
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3142
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3143
// Verification
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3144
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3145
class VerifyFieldClosure: public OopClosure {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3146
 protected:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3147
  template <class T> void do_oop_work(T* p) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3148
    oop obj = oopDesc::load_decode_heap_oop(p);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3149
    if (!obj->is_oop_or_null()) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3150
      tty->print_cr("Failed: " PTR_FORMAT " -> " PTR_FORMAT, p, (address)obj);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3151
      Universe::print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3152
      guarantee(false, "boom");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3153
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3154
  }
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3155
 public:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3156
  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: 225
diff changeset
  3157
  virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3158
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3159
22794
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3160
void InstanceKlass::verify_on(outputStream* st) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3161
#ifndef PRODUCT
18439
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3162
  // Avoid redundant verifies, this really should be in product.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3163
  if (_verify_count == Universe::verify_count()) return;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3164
  _verify_count = Universe::verify_count();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3165
#endif
18439
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3166
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3167
  // Verify Klass
22794
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3168
  Klass::verify_on(st);
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3169
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3170
  // Verify that klass is present in ClassLoaderData
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3171
  guarantee(class_loader_data()->contains_klass(this),
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3172
            "this class isn't found in class loader data");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3173
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3174
  // Verify vtables
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3175
  if (is_linked()) {
18439
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3176
    ResourceMark rm;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3177
    // $$$ This used to be done only for m/s collections.  Doing it
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3178
    // always seemed a valid generalization.  (DLD -- 6/00)
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3179
    vtable()->verify(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3180
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3181
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3182
  // Verify first subklass
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  3183
  if (subklass() != NULL) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  3184
    guarantee(subklass()->is_klass(), "should be klass");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3185
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3186
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3187
  // Verify siblings
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3188
  Klass* super = this->super();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3189
  Klass* sib = next_sibling();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3190
  if (sib != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3191
    if (sib == this) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3192
      fatal(err_msg("subclass points to itself " PTR_FORMAT, sib));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3193
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3194
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3195
    guarantee(sib->is_klass(), "should be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3196
    guarantee(sib->super() == super, "siblings should have same superklass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3197
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3198
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3199
  // Verify implementor fields
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3200
  Klass* im = implementor();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3201
  if (im != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3202
    guarantee(is_interface(), "only interfaces should have implementor set");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3203
    guarantee(im->is_klass(), "should be klass");
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  3204
    guarantee(!im->is_interface() || im == this,
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3205
      "implementors cannot be interfaces");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3206
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3207
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3208
  // Verify local interfaces
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3209
  if (local_interfaces()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3210
    Array<Klass*>* local_interfaces = this->local_interfaces();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3211
    for (int j = 0; j < local_interfaces->length(); j++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3212
      Klass* e = local_interfaces->at(j);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  3213
      guarantee(e->is_klass() && e->is_interface(), "invalid local interface");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3214
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3215
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3216
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3217
  // Verify transitive interfaces
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3218
  if (transitive_interfaces() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3219
    Array<Klass*>* transitive_interfaces = this->transitive_interfaces();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3220
    for (int j = 0; j < transitive_interfaces->length(); j++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3221
      Klass* e = transitive_interfaces->at(j);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  3222
      guarantee(e->is_klass() && e->is_interface(), "invalid transitive interface");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3223
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3224
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3225
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3226
  // Verify methods
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3227
  if (methods() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3228
    Array<Method*>* methods = this->methods();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3229
    for (int j = 0; j < methods->length(); j++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3230
      guarantee(methods->at(j)->is_method(), "non-method in methods array");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3231
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3232
    for (int j = 0; j < methods->length() - 1; j++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3233
      Method* m1 = methods->at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3234
      Method* m2 = methods->at(j + 1);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3235
      guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3236
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3237
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3238
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3239
  // Verify method ordering
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3240
  if (method_ordering() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3241
    Array<int>* method_ordering = this->method_ordering();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3242
    int length = method_ordering->length();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3243
    if (JvmtiExport::can_maintain_original_method_order() ||
16667
f0c0139a2125 8010943: guarantee(length == 0) failed: invalid method ordering length
hseigel
parents: 15935
diff changeset
  3244
        ((UseSharedSpaces || DumpSharedSpaces) && length != 0)) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3245
      guarantee(length == methods()->length(), "invalid method ordering length");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3246
      jlong sum = 0;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3247
      for (int j = 0; j < length; j++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3248
        int original_index = method_ordering->at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3249
        guarantee(original_index >= 0, "invalid method ordering index");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3250
        guarantee(original_index < length, "invalid method ordering index");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3251
        sum += original_index;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3252
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3253
      // Verify sum of indices 0,1,...,length-1
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3254
      guarantee(sum == ((jlong)length*(length-1))/2, "invalid method ordering sum");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3255
    } else {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3256
      guarantee(length == 0, "invalid method ordering length");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3257
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3258
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3259
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3260
  // Verify default methods
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3261
  if (default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3262
    Array<Method*>* methods = this->default_methods();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3263
    for (int j = 0; j < methods->length(); j++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3264
      guarantee(methods->at(j)->is_method(), "non-method in methods array");
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3265
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3266
    for (int j = 0; j < methods->length() - 1; j++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3267
      Method* m1 = methods->at(j);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3268
      Method* m2 = methods->at(j + 1);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3269
      guarantee(m1->name()->fast_compare(m2->name()) <= 0, "methods not sorted correctly");
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3270
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3271
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3272
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3273
  // Verify JNI static field identifiers
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3274
  if (jni_ids() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3275
    jni_ids()->verify(this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3276
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3277
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3278
  // Verify other fields
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3279
  if (array_klasses() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3280
    guarantee(array_klasses()->is_klass(), "should be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3281
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3282
  if (constants() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3283
    guarantee(constants()->is_constantPool(), "should be constant pool");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3284
  }
15873
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  3285
  const Klass* host = host_klass();
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  3286
  if (host != NULL) {
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  3287
    guarantee(host->is_klass(), "should be klass");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3288
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3289
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3290
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3291
void InstanceKlass::oop_verify_on(oop obj, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3292
  Klass::oop_verify_on(obj, st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3293
  VerifyFieldClosure blk;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3294
  obj->oop_iterate_no_header(&blk);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3295
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3296
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3297
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3298
// JNIid class for jfieldIDs only
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3299
// Note to reviewers:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3300
// These JNI functions are just moved over to column 1 and not changed
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3301
// in the compressed oops workspace.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3302
JNIid::JNIid(Klass* holder, int offset, JNIid* next) {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3303
  _holder = holder;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3304
  _offset = offset;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3305
  _next = next;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3306
  debug_only(_is_static_field_id = false;)
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3307
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3308
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3309
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3310
JNIid* JNIid::find(int offset) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3311
  JNIid* current = this;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3312
  while (current != NULL) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3313
    if (current->offset() == offset) return current;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3314
    current = current->next();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3315
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3316
  return NULL;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3317
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3318
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3319
void JNIid::deallocate(JNIid* current) {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3320
  while (current != NULL) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3321
    JNIid* next = current->next();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3322
    delete current;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3323
    current = next;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3324
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3325
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3326
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3327
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3328
void JNIid::verify(Klass* holder) {
13738
d67be49a5beb 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 13736
diff changeset
  3329
  int first_field_offset  = InstanceMirrorKlass::offset_of_static_fields();
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3330
  int end_field_offset;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3331
  end_field_offset = first_field_offset + (InstanceKlass::cast(holder)->static_field_size() * wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3332
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3333
  JNIid* current = this;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3334
  while (current != NULL) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3335
    guarantee(current->holder() == holder, "Invalid klass in JNIid");
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3336
#ifdef ASSERT
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3337
    int o = current->offset();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3338
    if (current->is_static_field_id()) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3339
      guarantee(o >= first_field_offset  && o < end_field_offset,  "Invalid static field offset in JNIid");
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3340
    }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3341
#endif
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3342
    current = current->next();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3343
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3344
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3345
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3346
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3347
#ifdef ASSERT
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3348
void InstanceKlass::set_init_state(ClassState state) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3349
  bool good_state = is_shared() ? (_init_state <= state)
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3350
                                               : (_init_state < state);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3351
  assert(good_state || state == allocated, "illegal state transition");
11407
5399831730cd 7117052: instanceKlass::_init_state can be u1 type
coleenp
parents: 10739
diff changeset
  3352
  _init_state = (u1)state;
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3353
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3354
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3355
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3356
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3357
// RedefineClasses() support for previous versions:
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3358
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3359
// Purge previous versions
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3360
static void purge_previous_versions_internal(InstanceKlass* ik, int emcp_method_count) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3361
  if (ik->previous_versions() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3362
    // This klass has previous versions so see what we can cleanup
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3363
    // while it is safe to do so.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3364
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3365
    int deleted_count = 0;    // leave debugging breadcrumbs
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3366
    int live_count = 0;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3367
    ClassLoaderData* loader_data = ik->class_loader_data() == NULL ?
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3368
                       ClassLoaderData::the_null_class_loader_data() :
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3369
                       ik->class_loader_data();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3370
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3371
    // RC_TRACE macro has an embedded ResourceMark
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3372
    RC_TRACE(0x00000200, ("purge: %s: previous version length=%d",
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3373
      ik->external_name(), ik->previous_versions()->length()));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3374
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3375
    for (int i = ik->previous_versions()->length() - 1; i >= 0; i--) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3376
      // check the previous versions array
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3377
      PreviousVersionNode * pv_node = ik->previous_versions()->at(i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3378
      ConstantPool* cp_ref = pv_node->prev_constant_pool();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3379
      assert(cp_ref != NULL, "cp ref was unexpectedly cleared");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3380
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3381
      ConstantPool* pvcp = cp_ref;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3382
      if (!pvcp->on_stack()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3383
        // If the constant pool isn't on stack, none of the methods
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3384
        // are executing.  Delete all the methods, the constant pool and
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3385
        // and this previous version node.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3386
        GrowableArray<Method*>* method_refs = pv_node->prev_EMCP_methods();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3387
        if (method_refs != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3388
          for (int j = method_refs->length() - 1; j >= 0; j--) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3389
            Method* method = method_refs->at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3390
            assert(method != NULL, "method ref was unexpectedly cleared");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3391
            method_refs->remove_at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3392
            // method will be freed with associated class.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3393
          }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3394
        }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3395
        // Remove the constant pool
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3396
        delete pv_node;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3397
        // Since we are traversing the array backwards, we don't have to
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3398
        // do anything special with the index.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3399
        ik->previous_versions()->remove_at(i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3400
        deleted_count++;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3401
        continue;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3402
      } else {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3403
        RC_TRACE(0x00000200, ("purge: previous version @%d is alive", i));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3404
        assert(pvcp->pool_holder() != NULL, "Constant pool with no holder");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3405
        guarantee (!loader_data->is_unloading(), "unloaded classes can't be on the stack");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3406
        live_count++;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3407
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3408
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3409
      // At least one method is live in this previous version, clean out
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3410
      // the others or mark them as obsolete.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3411
      GrowableArray<Method*>* method_refs = pv_node->prev_EMCP_methods();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3412
      if (method_refs != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3413
        RC_TRACE(0x00000200, ("purge: previous methods length=%d",
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3414
          method_refs->length()));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3415
        for (int j = method_refs->length() - 1; j >= 0; j--) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3416
          Method* method = method_refs->at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3417
          assert(method != NULL, "method ref was unexpectedly cleared");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3418
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3419
          // Remove the emcp method if it's not executing
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3420
          // If it's been made obsolete by a redefinition of a non-emcp
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3421
          // method, mark it as obsolete but leave it to clean up later.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3422
          if (!method->on_stack()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3423
            method_refs->remove_at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3424
          } else if (emcp_method_count == 0) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3425
            method->set_is_obsolete();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3426
          } else {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3427
            // RC_TRACE macro has an embedded ResourceMark
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3428
            RC_TRACE(0x00000200,
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3429
              ("purge: %s(%s): prev method @%d in version @%d is alive",
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3430
              method->name()->as_C_string(),
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3431
              method->signature()->as_C_string(), j, i));
23845
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3432
            if (method->method_data() != NULL) {
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3433
              // Clean out any weak method links
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3434
              method->method_data()->clean_weak_method_links();
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3435
            }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3436
          }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3437
        }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3438
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3439
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3440
    assert(ik->previous_versions()->length() == live_count, "sanity check");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3441
    RC_TRACE(0x00000200,
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3442
      ("purge: previous version stats: live=%d, deleted=%d", live_count,
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3443
      deleted_count));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3444
  }
23845
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3445
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3446
  Array<Method*>* methods = ik->methods();
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3447
  int num_methods = methods->length();
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3448
  for (int index2 = 0; index2 < num_methods; ++index2) {
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3449
    if (methods->at(index2)->method_data() != NULL) {
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3450
      methods->at(index2)->method_data()->clean_weak_method_links();
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3451
    }
ebd1fafcc362 8038636: speculative traps break when classes are redefined
roland
parents: 23515
diff changeset
  3452
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3453
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3454
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3455
// External interface for use during class unloading.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3456
void InstanceKlass::purge_previous_versions(InstanceKlass* ik) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3457
  // Call with >0 emcp methods since they are not currently being redefined.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3458
  purge_previous_versions_internal(ik, 1);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3459
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3460
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3461
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3462
// Potentially add an information node that contains pointers to the
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3463
// interesting parts of the previous version of the_class.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3464
// This is also where we clean out any unused references.
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  3465
// Note that while we delete nodes from the _previous_versions
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  3466
// array, we never delete the array itself until the klass is
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  3467
// unloaded. The has_been_redefined() query depends on that fact.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  3468
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3469
void InstanceKlass::add_previous_version(instanceKlassHandle ikh,
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3470
       BitMap* emcp_methods, int emcp_method_count) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3471
  assert(Thread::current()->is_VM_thread(),
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3472
         "only VMThread can add previous versions");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3473
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3474
  if (_previous_versions == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3475
    // This is the first previous version so make some space.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3476
    // Start with 2 elements under the assumption that the class
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3477
    // won't be redefined much.
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12587
diff changeset
  3478
    _previous_versions =  new (ResourceObj::C_HEAP, mtClass)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3479
                            GrowableArray<PreviousVersionNode *>(2, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3480
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3481
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3482
  ConstantPool* cp_ref = ikh->constants();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3483
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3484
  // RC_TRACE macro has an embedded ResourceMark
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3485
  RC_TRACE(0x00000400, ("adding previous version ref for %s @%d, EMCP_cnt=%d "
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3486
                        "on_stack=%d",
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3487
    ikh->external_name(), _previous_versions->length(), emcp_method_count,
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3488
    cp_ref->on_stack()));
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3489
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3490
  // If the constant pool for this previous version of the class
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3491
  // is not marked as being on the stack, then none of the methods
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3492
  // in this previous version of the class are on the stack so
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3493
  // we don't need to create a new PreviousVersionNode. However,
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3494
  // we still need to examine older previous versions below.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3495
  Array<Method*>* old_methods = ikh->methods();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3496
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3497
  if (cp_ref->on_stack()) {
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3498
    PreviousVersionNode * pv_node = NULL;
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3499
    if (emcp_method_count == 0) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3500
      // non-shared ConstantPool gets a reference
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3501
      pv_node = new PreviousVersionNode(cp_ref, NULL);
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3502
      RC_TRACE(0x00000400,
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3503
          ("add: all methods are obsolete; flushing any EMCP refs"));
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3504
    } else {
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3505
      int local_count = 0;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3506
      GrowableArray<Method*>* method_refs = new (ResourceObj::C_HEAP, mtClass)
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3507
          GrowableArray<Method*>(emcp_method_count, true);
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3508
      for (int i = 0; i < old_methods->length(); i++) {
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3509
        if (emcp_methods->at(i)) {
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3510
            // this old method is EMCP. Save it only if it's on the stack
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3511
            Method* old_method = old_methods->at(i);
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3512
            if (old_method->on_stack()) {
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3513
              method_refs->append(old_method);
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3514
            }
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3515
          if (++local_count >= emcp_method_count) {
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3516
            // no more EMCP methods so bail out now
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3517
            break;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3518
          }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3519
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3520
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3521
      // non-shared ConstantPool gets a reference
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3522
      pv_node = new PreviousVersionNode(cp_ref, method_refs);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3523
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3524
    // append new previous version.
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3525
    _previous_versions->append(pv_node);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3526
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3527
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3528
  // Since the caller is the VMThread and we are at a safepoint, this
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3529
  // is a good time to clear out unused references.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3530
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3531
  RC_TRACE(0x00000400, ("add: previous version length=%d",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3532
    _previous_versions->length()));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3533
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3534
  // Purge previous versions not executing on the stack
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3535
  purge_previous_versions_internal(this, emcp_method_count);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3536
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3537
  int obsolete_method_count = old_methods->length() - emcp_method_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3538
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3539
  if (emcp_method_count != 0 && obsolete_method_count != 0 &&
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3540
      _previous_versions->length() > 0) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3541
    // We have a mix of obsolete and EMCP methods so we have to
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3542
    // clear out any matching EMCP method entries the hard way.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3543
    int local_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3544
    for (int i = 0; i < old_methods->length(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3545
      if (!emcp_methods->at(i)) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3546
        // only obsolete methods are interesting
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3547
        Method* old_method = old_methods->at(i);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  3548
        Symbol* m_name = old_method->name();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  3549
        Symbol* m_signature = old_method->signature();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3550
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3551
        // we might not have added the last entry
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3552
        for (int j = _previous_versions->length() - 1; j >= 0; j--) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3553
          // check the previous versions array for non executing obsolete methods
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3554
          PreviousVersionNode * pv_node = _previous_versions->at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3555
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3556
          GrowableArray<Method*>* method_refs = pv_node->prev_EMCP_methods();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3557
          if (method_refs == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3558
            // We have run into a PreviousVersion generation where
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3559
            // all methods were made obsolete during that generation's
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3560
            // RedefineClasses() operation. At the time of that
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3561
            // operation, all EMCP methods were flushed so we don't
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3562
            // have to go back any further.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3563
            //
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3564
            // A NULL method_refs is different than an empty method_refs.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3565
            // We cannot infer any optimizations about older generations
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3566
            // from an empty method_refs for the current generation.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3567
            break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3568
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3569
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3570
          for (int k = method_refs->length() - 1; k >= 0; k--) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3571
            Method* method = method_refs->at(k);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3572
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3573
            if (!method->is_obsolete() &&
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3574
                method->name() == m_name &&
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3575
                method->signature() == m_signature) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3576
              // The current RedefineClasses() call has made all EMCP
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3577
              // versions of this method obsolete so mark it as obsolete
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3578
              // and remove the reference.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3579
              RC_TRACE(0x00000400,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3580
                ("add: %s(%s): flush obsolete method @%d in version @%d",
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3581
                m_name->as_C_string(), m_signature->as_C_string(), k, j));
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3582
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3583
              method->set_is_obsolete();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3584
              // Leave obsolete methods on the previous version list to
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3585
              // clean up later.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3586
              break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3587
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3588
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3589
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3590
          // The previous loop may not find a matching EMCP method, but
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3591
          // that doesn't mean that we can optimize and not go any
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3592
          // further back in the PreviousVersion generations. The EMCP
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3593
          // method for this generation could have already been deleted,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3594
          // but there still may be an older EMCP method that has not
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3595
          // been deleted.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3596
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3597
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3598
        if (++local_count >= obsolete_method_count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3599
          // no more obsolete methods so bail out now
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3600
          break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3601
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3602
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3603
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3604
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3605
} // end add_previous_version()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3606
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3607
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3608
// Determine if InstanceKlass has a previous version.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3609
bool InstanceKlass::has_previous_version() const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3610
  return (_previous_versions != NULL && _previous_versions->length() > 0);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3611
} // end has_previous_version()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3612
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3613
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3614
Method* InstanceKlass::method_with_idnum(int idnum) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3615
  Method* m = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3616
  if (idnum < methods()->length()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3617
    m = methods()->at(idnum);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3618
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3619
  if (m == NULL || m->method_idnum() != idnum) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3620
    for (int index = 0; index < methods()->length(); ++index) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3621
      m = methods()->at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3622
      if (m->method_idnum() == idnum) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3623
        return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3624
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3625
    }
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3626
    // None found, return null for the caller to handle.
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3627
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3628
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3629
  return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3630
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3631
18940
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3632
jint InstanceKlass::get_cached_class_file_len() {
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3633
  return VM_RedefineClasses::get_cached_class_file_len(_cached_class_file);
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3634
}
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3635
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3636
unsigned char * InstanceKlass::get_cached_class_file_bytes() {
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3637
  return VM_RedefineClasses::get_cached_class_file_bytes(_cached_class_file);
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3638
}
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3639
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3640
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3641
// Construct a PreviousVersionNode entry for the array hung off
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3642
// the InstanceKlass.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3643
PreviousVersionNode::PreviousVersionNode(ConstantPool* prev_constant_pool,
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3644
  GrowableArray<Method*>* prev_EMCP_methods) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3645
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3646
  _prev_constant_pool = prev_constant_pool;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3647
  _prev_EMCP_methods = prev_EMCP_methods;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3648
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3649
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3650
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3651
// Destroy a PreviousVersionNode
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3652
PreviousVersionNode::~PreviousVersionNode() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3653
  if (_prev_constant_pool != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3654
    _prev_constant_pool = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3655
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3656
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3657
  if (_prev_EMCP_methods != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3658
    delete _prev_EMCP_methods;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3659
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3660
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3661
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3662
// Construct a helper for walking the previous versions array
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3663
PreviousVersionWalker::PreviousVersionWalker(Thread* thread, InstanceKlass *ik) {
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3664
  _thread = thread;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3665
  _previous_versions = ik->previous_versions();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3666
  _current_index = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3667
  _current_p = NULL;
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3668
  _current_constant_pool_handle = constantPoolHandle(thread, ik->constants());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3669
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3670
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3671
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3672
// Return the interesting information for the next previous version
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3673
// of the klass. Returns NULL if there are no more previous versions.
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3674
PreviousVersionNode* PreviousVersionWalker::next_previous_version() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3675
  if (_previous_versions == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3676
    // no previous versions so nothing to return
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3677
    return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3678
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3679
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3680
  _current_p = NULL;  // reset to NULL
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3681
  _current_constant_pool_handle = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3682
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3683
  int length = _previous_versions->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3684
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3685
  while (_current_index < length) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3686
    PreviousVersionNode * pv_node = _previous_versions->at(_current_index++);
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3687
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3688
    // Save a handle to the constant pool for this previous version,
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3689
    // which keeps all the methods from being deallocated.
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3690
    _current_constant_pool_handle = constantPoolHandle(_thread, pv_node->prev_constant_pool());
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3691
    _current_p = pv_node;
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3692
    return pv_node;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3693
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3694
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3695
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3696
} // end next_previous_version()