src/hotspot/share/oops/instanceKlass.cpp
author coleenp
Wed, 31 Oct 2018 14:38:14 -0400
changeset 52356 19c4a3eec4d7
parent 52311 274ba8fbd96d
child 52514 f4e3900c8d08
permissions -rw-r--r--
8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes Reviewed-by: jiangli, jwilhelm
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/*
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 * Copyright (c) 1997, 2018, 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 "jvm.h"
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#include "aot/aotLoader.hpp"
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#include "classfile/classFileParser.hpp"
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#include "classfile/classFileStream.hpp"
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#include "classfile/classLoader.hpp"
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#include "classfile/classLoaderData.inline.hpp"
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#include "classfile/javaClasses.hpp"
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#include "classfile/moduleEntry.hpp"
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#include "classfile/systemDictionary.hpp"
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#include "classfile/systemDictionaryShared.hpp"
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#include "classfile/verifier.hpp"
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#include "classfile/vmSymbols.hpp"
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#include "code/dependencyContext.hpp"
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#include "compiler/compileBroker.hpp"
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#include "gc/shared/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 "logging/log.hpp"
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#include "logging/logMessage.hpp"
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#include "logging/logStream.hpp"
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#include "memory/allocation.inline.hpp"
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#include "memory/heapInspection.hpp"
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#include "memory/iterator.inline.hpp"
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#include "memory/metadataFactory.hpp"
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#include "memory/metaspaceClosure.hpp"
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#include "memory/metaspaceShared.hpp"
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#include "memory/oopFactory.hpp"
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#include "memory/resourceArea.hpp"
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#include "oops/fieldStreams.hpp"
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#include "oops/instanceClassLoaderKlass.hpp"
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#include "oops/instanceKlass.inline.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/jvmtiRedefineClasses.hpp"
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#include "prims/jvmtiThreadState.hpp"
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#include "prims/methodComparator.hpp"
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#include "runtime/atomic.hpp"
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#include "runtime/fieldDescriptor.inline.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.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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#include "utilities/stringUtils.hpp"
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#ifdef COMPILER1
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#include "c1/c1_Compiler.hpp"
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#endif
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#if INCLUDE_JFR
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#include "jfr/jfrEvents.hpp"
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#endif
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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, 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* clss_name = name();                                  \
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    if (clss_name != NULL) {                                     \
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      data = (char*)clss_name->bytes();                          \
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      len = clss_name->utf8_length();                            \
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    }                                                            \
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    HOTSPOT_CLASS_INITIALIZATION_##type(                         \
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      data, len, (void*)class_loader(), thread_type);            \
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  }
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#define DTRACE_CLASSINIT_PROBE_WAIT(type, 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* clss_name = name();                                  \
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    if (clss_name != NULL) {                                     \
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      data = (char*)clss_name->bytes();                          \
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      len = clss_name->utf8_length();                            \
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    }                                                            \
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    HOTSPOT_CLASS_INITIALIZATION_##type(                         \
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      data, len, (void*)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, thread_type)
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#define DTRACE_CLASSINIT_PROBE_WAIT(type, thread_type, wait)
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#endif //  ndef DTRACE_ENABLED
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static inline bool is_class_loader(const Symbol* class_name,
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                                   const ClassFileParser& parser) {
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  assert(class_name != NULL, "invariant");
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  if (class_name == vmSymbols::java_lang_ClassLoader()) {
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    return true;
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  }
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  if (SystemDictionary::ClassLoader_klass_loaded()) {
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    const Klass* const super_klass = parser.super_klass();
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    if (super_klass != NULL) {
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      if (super_klass->is_subtype_of(SystemDictionary::ClassLoader_klass())) {
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        return true;
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      }
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    }
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  }
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  return false;
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}
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// called to verify that k is a member of this nest
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bool InstanceKlass::has_nest_member(InstanceKlass* k, TRAPS) const {
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  if (_nest_members == NULL || _nest_members == Universe::the_empty_short_array()) {
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    if (log_is_enabled(Trace, class, nestmates)) {
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      ResourceMark rm(THREAD);
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      log_trace(class, nestmates)("Checked nest membership of %s in non-nest-host class %s",
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                                  k->external_name(), this->external_name());
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    }
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    return false;
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  }
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  if (log_is_enabled(Trace, class, nestmates)) {
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    ResourceMark rm(THREAD);
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    log_trace(class, nestmates)("Checking nest membership of %s in %s",
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                                k->external_name(), this->external_name());
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  }
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   167
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  // Check for a resolved cp entry , else fall back to a name check.
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  // We don't want to resolve any class other than the one being checked.
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  for (int i = 0; i < _nest_members->length(); i++) {
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    int cp_index = _nest_members->at(i);
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    if (_constants->tag_at(cp_index).is_klass()) {
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      Klass* k2 = _constants->klass_at(cp_index, CHECK_false);
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      if (k2 == k) {
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        log_trace(class, nestmates)("- class is listed at nest_members[%d] => cp[%d]", i, cp_index);
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        return true;
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      }
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    }
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    else {
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      Symbol* name = _constants->klass_name_at(cp_index);
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      if (name == k->name()) {
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        log_trace(class, nestmates)("- Found it at nest_members[%d] => cp[%d]", i, cp_index);
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        // names match so check actual klass - this may trigger class loading if
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        // it doesn't match (but that should be impossible)
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        Klass* k2 = _constants->klass_at(cp_index, CHECK_false);
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        if (k2 == k) {
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          log_trace(class, nestmates)("- class is listed as a nest member");
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          return true;
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        }
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        else {
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          // same name but different klass!
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          log_trace(class, nestmates)(" - klass comparison failed!");
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          // can't have two names the same, so we're done
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          return false;
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        }
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      }
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    }
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  }
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  log_trace(class, nestmates)("- class is NOT a nest member!");
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  return false;
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}
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   203
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// Return nest-host class, resolving, validating and saving it if needed.
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// In cases where this is called from a thread that can not do classloading
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// (such as a native JIT thread) then we simply return NULL, which in turn
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// causes the access check to return false. Such code will retry the access
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// from a more suitable environment later.
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InstanceKlass* InstanceKlass::nest_host(Symbol* validationException, TRAPS) {
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  InstanceKlass* nest_host_k = _nest_host;
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  if (nest_host_k == NULL) {
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    // need to resolve and save our nest-host class. This could be attempted
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    // concurrently but as the result is idempotent and we don't use the class
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    // then we do not need any synchronization beyond what is implicitly used
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    // during class loading.
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    if (_nest_host_index != 0) { // we have a real nest_host
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      // Before trying to resolve check if we're in a suitable context
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      if (!THREAD->can_call_java() && !_constants->tag_at(_nest_host_index).is_klass()) {
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        if (log_is_enabled(Trace, class, nestmates)) {
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          ResourceMark rm(THREAD);
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          log_trace(class, nestmates)("Rejected resolution of nest-host of %s in unsuitable thread",
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                                      this->external_name());
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   223
        }
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        return NULL;
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   225
      }
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   226
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      if (log_is_enabled(Trace, class, nestmates)) {
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        ResourceMark rm(THREAD);
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        log_trace(class, nestmates)("Resolving nest-host of %s using cp entry for %s",
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                                    this->external_name(),
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                                    _constants->klass_name_at(_nest_host_index)->as_C_string());
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      }
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   233
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      Klass* k = _constants->klass_at(_nest_host_index, THREAD);
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   235
      if (HAS_PENDING_EXCEPTION) {
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   236
        Handle exc_h = Handle(THREAD, PENDING_EXCEPTION);
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   237
        if (exc_h->is_a(SystemDictionary::NoClassDefFoundError_klass())) {
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          // throw a new CDNFE with the original as its cause, and a clear msg
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   239
          ResourceMark rm(THREAD);
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   240
          char buf[200];
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   241
          CLEAR_PENDING_EXCEPTION;
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   242
          jio_snprintf(buf, sizeof(buf),
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                       "Unable to load nest-host class (%s) of %s",
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                       _constants->klass_name_at(_nest_host_index)->as_C_string(),
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   245
                       this->external_name());
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   246
          log_trace(class, nestmates)("%s - NoClassDefFoundError", buf);
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          THROW_MSG_CAUSE_NULL(vmSymbols::java_lang_NoClassDefFoundError(), buf, exc_h);
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   248
        }
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        // All other exceptions pass through (OOME, StackOverflowError, LinkageErrors etc).
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   250
        return NULL;
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   251
      }
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   252
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      // A valid nest-host is an instance class in the current package that lists this
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   254
      // class as a nest member. If any of these conditions are not met we post the
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   255
      // requested exception type (if any) and return NULL
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   256
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      const char* error = NULL;
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   258
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   259
      // JVMS 5.4.4 indicates package check comes first
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   260
      if (is_same_class_package(k)) {
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   261
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   262
        // Now check actual membership. We can't be a member if our "host" is
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   263
        // not an instance class.
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   264
        if (k->is_instance_klass()) {
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   265
          nest_host_k = InstanceKlass::cast(k);
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   266
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          bool is_member = nest_host_k->has_nest_member(this, CHECK_NULL);
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   268
          if (is_member) {
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   269
            // save resolved nest-host value
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   270
            _nest_host = nest_host_k;
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   271
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            if (log_is_enabled(Trace, class, nestmates)) {
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              ResourceMark rm(THREAD);
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              log_trace(class, nestmates)("Resolved nest-host of %s to %s",
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                                          this->external_name(), k->external_name());
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   276
            }
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            return nest_host_k;
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   278
          }
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   279
        }
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        error = "current type is not listed as a nest member";
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   281
      } else {
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   282
        error = "types are in different packages";
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      }
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   284
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      if (log_is_enabled(Trace, class, nestmates)) {
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   286
        ResourceMark rm(THREAD);
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        log_trace(class, nestmates)("Type %s is not a nest member of resolved type %s: %s",
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                                    this->external_name(),
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   289
                                    k->external_name(),
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   290
                                    error);
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   291
      }
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   292
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   293
      if (validationException != NULL) {
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   294
        ResourceMark rm(THREAD);
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   295
        Exceptions::fthrow(THREAD_AND_LOCATION,
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   296
                           validationException,
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   297
                           "Type %s is not a nest member of %s: %s",
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   298
                           this->external_name(),
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   299
                           k->external_name(),
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   300
                           error
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   301
                           );
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   302
      }
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   303
      return NULL;
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   304
    } else {
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   305
      if (log_is_enabled(Trace, class, nestmates)) {
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   306
        ResourceMark rm(THREAD);
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   307
        log_trace(class, nestmates)("Type %s is not part of a nest: setting nest-host to self",
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   308
                                    this->external_name());
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   309
      }
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   310
      // save resolved nest-host value
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   311
      return (_nest_host = this);
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   312
    }
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   313
  }
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   314
  return nest_host_k;
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   315
}
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   316
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   317
// check if 'this' and k are nestmates (same nest_host), or k is our nest_host,
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   318
// or we are k's nest_host - all of which is covered by comparing the two
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   319
// resolved_nest_hosts
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   320
bool InstanceKlass::has_nestmate_access_to(InstanceKlass* k, TRAPS) {
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   321
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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   322
  assert(this != k, "this should be handled by higher-level code");
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   323
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parents: 50634
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   324
  // Per JVMS 5.4.4 we first resolve and validate the current class, then
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parents: 50634
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   325
  // the target class k. Resolution exceptions will be passed on by upper
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
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   326
  // layers. IncompatibleClassChangeErrors from membership validation failures
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   327
  // will also be passed through.
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parents: 50634
diff changeset
   328
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
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   329
  Symbol* icce = vmSymbols::java_lang_IncompatibleClassChangeError();
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   330
  InstanceKlass* cur_host = nest_host(icce, CHECK_false);
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
diff changeset
   331
  if (cur_host == NULL) {
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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diff changeset
   332
    return false;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   333
  }
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
diff changeset
   334
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
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   335
  Klass* k_nest_host = k->nest_host(icce, CHECK_false);
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
diff changeset
   336
  if (k_nest_host == NULL) {
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   337
    return false;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
diff changeset
   338
  }
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
diff changeset
   339
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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   340
  bool access = (cur_host == k_nest_host);
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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diff changeset
   341
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   342
  if (log_is_enabled(Trace, class, nestmates)) {
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
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diff changeset
   343
    ResourceMark rm(THREAD);
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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   344
    log_trace(class, nestmates)("Class %s does %shave nestmate access to %s",
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   345
                                this->external_name(),
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   346
                                access ? "" : "NOT ",
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   347
                                k->external_name());
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   348
  }
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   349
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
diff changeset
   350
  return access;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
diff changeset
   351
}
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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parents: 50634
diff changeset
   352
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parents: 34629
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   353
InstanceKlass* InstanceKlass::allocate_instance_klass(const ClassFileParser& parser, TRAPS) {
1c7168ea0034 8140485: Class load and creation cleanup
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parents: 34629
diff changeset
   354
  const int size = InstanceKlass::size(parser.vtable_size(),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   355
                                       parser.itable_size(),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   356
                                       nonstatic_oop_map_size(parser.total_oop_map_count()),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   357
                                       parser.is_interface(),
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
   358
                                       parser.is_unsafe_anonymous(),
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
   359
                                       should_store_fingerprint(parser.is_unsafe_anonymous()));
34666
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mgronlun
parents: 34629
diff changeset
   360
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   361
  const Symbol* const class_name = parser.class_name();
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   362
  assert(class_name != NULL, "invariant");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   363
  ClassLoaderData* loader_data = parser.loader_data();
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   364
  assert(loader_data != NULL, "invariant");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   365
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   366
  InstanceKlass* ik;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   367
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   368
  // Allocation
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   369
  if (REF_NONE == parser.reference_type()) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   370
    if (class_name == vmSymbols::java_lang_Class()) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   371
      // mirror
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   372
      ik = new (loader_data, size, THREAD) InstanceMirrorKlass(parser);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   373
    }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   374
    else if (is_class_loader(class_name, parser)) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   375
      // class loader
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   376
      ik = new (loader_data, size, THREAD) InstanceClassLoaderKlass(parser);
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   377
    } else {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   378
      // normal
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   379
      ik = new (loader_data, size, THREAD) InstanceKlass(parser, InstanceKlass::_misc_kind_other);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   380
    }
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   381
  } else {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   382
    // reference
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   383
    ik = new (loader_data, size, THREAD) InstanceRefKlass(parser);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   384
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   385
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   386
  // Check for pending exception before adding to the loader data and incrementing
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   387
  // class count.  Can get OOM here.
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   388
  if (HAS_PENDING_EXCEPTION) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   389
    return NULL;
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   390
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   391
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   392
  return ik;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   393
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   394
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   395
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   396
// copy method ordering from resource area to Metaspace
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   397
void InstanceKlass::copy_method_ordering(const intArray* m, TRAPS) {
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   398
  if (m != NULL) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   399
    // allocate a new array and copy contents (memcpy?)
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   400
    _method_ordering = MetadataFactory::new_array<int>(class_loader_data(), m->length(), CHECK);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   401
    for (int i = 0; i < m->length(); i++) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   402
      _method_ordering->at_put(i, m->at(i));
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   403
    }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   404
  } else {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   405
    _method_ordering = Universe::the_empty_int_array();
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   406
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   407
}
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   408
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   409
// create a new array of vtable_indices for default methods
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   410
Array<int>* InstanceKlass::create_new_default_vtable_indices(int len, TRAPS) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   411
  Array<int>* vtable_indices = MetadataFactory::new_array<int>(class_loader_data(), len, CHECK_NULL);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   412
  assert(default_vtable_indices() == NULL, "only create once");
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   413
  set_default_vtable_indices(vtable_indices);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   414
  return vtable_indices;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   415
}
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   416
50752
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 50746
diff changeset
   417
InstanceKlass::InstanceKlass(const ClassFileParser& parser, unsigned kind, KlassID id) :
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 50746
diff changeset
   418
  Klass(id),
51334
cc2c79d22508 8208671: Runtime, JFR, Serviceability changes to allow enabling -Wreorder
tschatzl
parents: 51329
diff changeset
   419
  _nest_members(NULL),
cc2c79d22508 8208671: Runtime, JFR, Serviceability changes to allow enabling -Wreorder
tschatzl
parents: 51329
diff changeset
   420
  _nest_host_index(0),
cc2c79d22508 8208671: Runtime, JFR, Serviceability changes to allow enabling -Wreorder
tschatzl
parents: 51329
diff changeset
   421
  _nest_host(NULL),
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   422
  _static_field_size(parser.static_field_size()),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   423
  _nonstatic_oop_map_size(nonstatic_oop_map_size(parser.total_oop_map_count())),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   424
  _itable_len(parser.itable_size()),
51334
cc2c79d22508 8208671: Runtime, JFR, Serviceability changes to allow enabling -Wreorder
tschatzl
parents: 51329
diff changeset
   425
  _reference_type(parser.reference_type()) {
35899
0dbc821628fc 8148047: Move the vtable length field to Klass
mgerdin
parents: 35898
diff changeset
   426
    set_vtable_length(parser.vtable_size());
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   427
    set_kind(kind);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   428
    set_access_flags(parser.access_flags());
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
   429
    set_is_unsafe_anonymous(parser.is_unsafe_anonymous());
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   430
    set_layout_helper(Klass::instance_layout_helper(parser.layout_size(),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   431
                                                    false));
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   432
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   433
    assert(NULL == _methods, "underlying memory not zeroed?");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   434
    assert(is_instance_klass(), "is layout incorrect?");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   435
    assert(size_helper() == parser.layout_size(), "incorrect size_helper?");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   436
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   437
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   438
void InstanceKlass::deallocate_methods(ClassLoaderData* loader_data,
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   439
                                       Array<Method*>* methods) {
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   440
  if (methods != NULL && methods != Universe::the_empty_method_array() &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   441
      !methods->is_shared()) {
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   442
    for (int i = 0; i < methods->length(); i++) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   443
      Method* method = methods->at(i);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   444
      if (method == NULL) continue;  // maybe null if error processing
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   445
      // Only want to delete methods that are not executing for RedefineClasses.
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   446
      // The previous version will point to them so they're not totally dangling
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   447
      assert (!method->on_stack(), "shouldn't be called with methods on stack");
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   448
      MetadataFactory::free_metadata(loader_data, method);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   449
    }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   450
    MetadataFactory::free_array<Method*>(loader_data, methods);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   451
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   452
}
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   453
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   454
void InstanceKlass::deallocate_interfaces(ClassLoaderData* loader_data,
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   455
                                          const Klass* super_klass,
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   456
                                          Array<InstanceKlass*>* local_interfaces,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   457
                                          Array<InstanceKlass*>* transitive_interfaces) {
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   458
  // Only deallocate transitive interfaces if not empty, same as super class
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   459
  // or same as local interfaces.  See code in parseClassFile.
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   460
  Array<InstanceKlass*>* ti = transitive_interfaces;
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   461
  if (ti != Universe::the_empty_instance_klass_array() && ti != local_interfaces) {
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   462
    // check that the interfaces don't come from super class
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   463
    Array<InstanceKlass*>* sti = (super_klass == NULL) ? NULL :
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   464
                    InstanceKlass::cast(super_klass)->transitive_interfaces();
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   465
    if (ti != sti && ti != NULL && !ti->is_shared()) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   466
      MetadataFactory::free_array<InstanceKlass*>(loader_data, ti);
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   467
    }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   468
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   469
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   470
  // local interfaces can be empty
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   471
  if (local_interfaces != Universe::the_empty_instance_klass_array() &&
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   472
      local_interfaces != NULL && !local_interfaces->is_shared()) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   473
    MetadataFactory::free_array<InstanceKlass*>(loader_data, local_interfaces);
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   474
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   475
}
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   476
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   477
// This function deallocates the metadata and C heap pointers that the
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   478
// InstanceKlass points to.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   479
void InstanceKlass::deallocate_contents(ClassLoaderData* loader_data) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   480
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   481
  // Orphan the mirror first, CMS thinks it's still live.
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   482
  if (java_mirror() != NULL) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   483
    java_lang_Class::set_klass(java_mirror(), NULL);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   484
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   485
47580
96392e113a0a 8186777: Make Klass::_java_mirror an OopHandle
coleenp
parents: 47216
diff changeset
   486
  // Also remove mirror from handles
96392e113a0a 8186777: Make Klass::_java_mirror an OopHandle
coleenp
parents: 47216
diff changeset
   487
  loader_data->remove_handle(_java_mirror);
96392e113a0a 8186777: Make Klass::_java_mirror an OopHandle
coleenp
parents: 47216
diff changeset
   488
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   489
  // Need to take this class off the class loader data list.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   490
  loader_data->remove_class(this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   491
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   492
  // The array_klass for this class is created later, after error handling.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   493
  // For class redefinition, we keep the original class so this scratch class
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   494
  // doesn't have an array class.  Either way, assert that there is nothing
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   495
  // to deallocate.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   496
  assert(array_klasses() == NULL, "array classes shouldn't be created for this class yet");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   497
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   498
  // Release C heap allocated data that this might point to, which includes
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   499
  // reference counting symbol names.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   500
  release_C_heap_structures();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   501
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   502
  deallocate_methods(loader_data, methods());
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   503
  set_methods(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   504
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   505
  if (method_ordering() != NULL &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   506
      method_ordering() != Universe::the_empty_int_array() &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   507
      !method_ordering()->is_shared()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   508
    MetadataFactory::free_array<int>(loader_data, method_ordering());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   509
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   510
  set_method_ordering(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   511
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   512
  // default methods can be empty
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   513
  if (default_methods() != NULL &&
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   514
      default_methods() != Universe::the_empty_method_array() &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   515
      !default_methods()->is_shared()) {
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   516
    MetadataFactory::free_array<Method*>(loader_data, default_methods());
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   517
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   518
  // Do NOT deallocate the default methods, they are owned by superinterfaces.
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   519
  set_default_methods(NULL);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   520
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   521
  // default methods vtable indices can be empty
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   522
  if (default_vtable_indices() != NULL &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   523
      !default_vtable_indices()->is_shared()) {
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   524
    MetadataFactory::free_array<int>(loader_data, default_vtable_indices());
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   525
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   526
  set_default_vtable_indices(NULL);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   527
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   528
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   529
  // This array is in Klass, but remove it with the InstanceKlass since
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   530
  // this place would be the only caller and it can share memory with transitive
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   531
  // interfaces.
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   532
  if (secondary_supers() != NULL &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   533
      secondary_supers() != Universe::the_empty_klass_array() &&
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   534
      // see comments in compute_secondary_supers about the following cast
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   535
      (address)(secondary_supers()) != (address)(transitive_interfaces()) &&
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   536
      !secondary_supers()->is_shared()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   537
    MetadataFactory::free_array<Klass*>(loader_data, secondary_supers());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   538
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   539
  set_secondary_supers(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   540
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   541
  deallocate_interfaces(loader_data, super(), local_interfaces(), transitive_interfaces());
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   542
  set_transitive_interfaces(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   543
  set_local_interfaces(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   544
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   545
  if (fields() != NULL && !fields()->is_shared()) {
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   546
    MetadataFactory::free_array<jushort>(loader_data, fields());
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   547
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   548
  set_fields(NULL, 0);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   549
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   550
  // If a method from a redefined class is using this constant pool, don't
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   551
  // delete it, yet.  The new class's previous version will point to this.
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   552
  if (constants() != NULL) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   553
    assert (!constants()->on_stack(), "shouldn't be called if anything is onstack");
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   554
    if (!constants()->is_shared()) {
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   555
      MetadataFactory::free_metadata(loader_data, constants());
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   556
    }
31353
cd33628db166 8076110: VM crash when class is redefined with Instrumentation.redefineClasses
aeriksso
parents: 31050
diff changeset
   557
    // Delete any cached resolution errors for the constant pool
cd33628db166 8076110: VM crash when class is redefined with Instrumentation.redefineClasses
aeriksso
parents: 31050
diff changeset
   558
    SystemDictionary::delete_resolution_error(constants());
cd33628db166 8076110: VM crash when class is redefined with Instrumentation.redefineClasses
aeriksso
parents: 31050
diff changeset
   559
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   560
    set_constants(NULL);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   561
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   562
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   563
  if (inner_classes() != NULL &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   564
      inner_classes() != Universe::the_empty_short_array() &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   565
      !inner_classes()->is_shared()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   566
    MetadataFactory::free_array<jushort>(loader_data, inner_classes());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   567
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   568
  set_inner_classes(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   569
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   570
  if (nest_members() != NULL &&
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   571
      nest_members() != Universe::the_empty_short_array() &&
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   572
      !nest_members()->is_shared()) {
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   573
    MetadataFactory::free_array<jushort>(loader_data, nest_members());
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   574
  }
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   575
  set_nest_members(NULL);
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   576
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   577
  // 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
parents: 20396
diff changeset
   578
  if (annotations() != NULL && !annotations()->is_shared()) {
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   579
    MetadataFactory::free_metadata(loader_data, annotations());
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   580
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   581
  set_annotations(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   582
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   583
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   584
bool InstanceKlass::should_be_initialized() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  return !is_initialized();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   588
klassItable InstanceKlass::itable() const {
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   589
  return klassItable(const_cast<InstanceKlass*>(this));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   590
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   591
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   592
void InstanceKlass::eager_initialize(Thread *thread) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
  if (!EagerInitialization) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
  if (this->is_not_initialized()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
    // abort if the the class has a class initializer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   597
    if (this->class_initializer() != NULL) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
    // abort if it is java.lang.Object (initialization is handled in genesis)
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   600
    Klass* super_klass = super();
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   601
    if (super_klass == NULL) return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   602
489c9b5090e2 Initial load
duke
parents:
diff changeset
   603
    // abort if the super class should be initialized
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   604
    if (!InstanceKlass::cast(super_klass)->is_initialized()) return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   605
489c9b5090e2 Initial load
duke
parents:
diff changeset
   606
    // call body to expose the this pointer
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   607
    eager_initialize_impl();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   609
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
17826
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   611
// 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
   612
// instanceKlass.  These accessors pretend these fields are there.
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   613
// 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
   614
oop InstanceKlass::protection_domain() const {
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   615
  // return the protection_domain from the mirror
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   616
  return java_lang_Class::protection_domain(java_mirror());
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   617
}
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   618
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   619
// 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
   620
objArrayOop InstanceKlass::signers() const {
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   621
  // return the signers from the mirror
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   622
  return java_lang_Class::signers(java_mirror());
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   623
}
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   624
20379
a4c59d30d67d 8025004: -XX:+CheckUnhandledOops asserts for JDK 8 Solaris fastdebug binaries
coleenp
parents: 20284
diff changeset
   625
oop InstanceKlass::init_lock() const {
17826
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   626
  // return the init lock from the mirror
21079
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   627
  oop lock = java_lang_Class::init_lock(java_mirror());
26556
72da4c813e44 8046210: Missing memory barrier when reading init_lock
dholmes
parents: 26316
diff changeset
   628
  // Prevent reordering with any access of initialization state
72da4c813e44 8046210: Missing memory barrier when reading init_lock
dholmes
parents: 26316
diff changeset
   629
  OrderAccess::loadload();
21079
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   630
  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
   631
         "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
   632
  return lock;
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   633
}
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   634
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   635
// 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
   636
// 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
   637
// 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
   638
// the lock and return.
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   639
void InstanceKlass::fence_and_clear_init_lock() {
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   640
  // 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
   641
  OrderAccess::storestore();
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   642
  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
   643
  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
   644
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   646
void InstanceKlass::eager_initialize_impl() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
  EXCEPTION_MARK;
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   648
  HandleMark hm(THREAD);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   649
  Handle h_init_lock(THREAD, init_lock());
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
   650
  ObjectLocker ol(h_init_lock, THREAD, h_init_lock() != NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
  // abort if someone beat us to the initialization
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   653
  if (!is_not_initialized()) return;  // note: not equivalent to is_initialized()
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   654
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   655
  ClassState old_state = init_state();
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   656
  link_class_impl(THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
  if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   658
    CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
    // Abort if linking the class throws an exception.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
    // Use a test to avoid redundantly resetting the state if there's
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
    // no change.  Set_init_state() asserts that state changes make
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
    // progress, whereas here we might just be spinning in place.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   664
    if (old_state != _init_state)
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   665
      set_init_state(old_state);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
    // linking successfull, mark class as initialized
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   668
    set_init_state(fully_initialized);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   669
    fence_and_clear_init_lock();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
    // trace
38151
fffedc5e5cf8 8154110: Update class* and safepoint* logging subsystems
mockner
parents: 38094
diff changeset
   671
    if (log_is_enabled(Info, class, init)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   672
      ResourceMark rm(THREAD);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   673
      log_info(class, init)("[Initialized %s without side effects]", external_name());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   674
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
// See "The Virtual Machine Specification" section 2.16.5 for a detailed explanation of the class initialization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
// process. The step comments refers to the procedure described in that section.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
// 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
   682
void InstanceKlass::initialize(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
  if (this->should_be_initialized()) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   684
    initialize_impl(CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
    // Note: at this point the class may be initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
    //       OR it may be in the state of being initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
    //       in case of recursive initialization!
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
    assert(is_initialized(), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   694
bool InstanceKlass::verify_code(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
  // 1) Verify the bytecodes
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   696
  return Verifier::verify(this, should_verify_class(), THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   698
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   699
void InstanceKlass::link_class(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
  assert(is_loaded(), "must be loaded");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
  if (!is_linked()) {
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   702
    link_class_impl(CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
// Called to verify that a class can link during initialization, without
489c9b5090e2 Initial load
duke
parents:
diff changeset
   707
// throwing a VerifyError.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   708
bool InstanceKlass::link_class_or_fail(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
  assert(is_loaded(), "must be loaded");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   710
  if (!is_linked()) {
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   711
    link_class_impl(CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
  return is_linked();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   715
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   716
bool InstanceKlass::link_class_impl(TRAPS) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   717
  if (DumpSharedSpaces && is_in_error_state()) {
42031
55dc92f033b9 8166203: NoClassDefFoundError should not be thrown if class is in_error_state at link time
iklam
parents: 41669
diff changeset
   718
    // This is for CDS dumping phase only -- we use the in_error_state to indicate that
55dc92f033b9 8166203: NoClassDefFoundError should not be thrown if class is in_error_state at link time
iklam
parents: 41669
diff changeset
   719
    // the class has failed verification. Throwing the NoClassDefFoundError here is just
55dc92f033b9 8166203: NoClassDefFoundError should not be thrown if class is in_error_state at link time
iklam
parents: 41669
diff changeset
   720
    // a convenient way to stop repeat attempts to verify the same (bad) class.
55dc92f033b9 8166203: NoClassDefFoundError should not be thrown if class is in_error_state at link time
iklam
parents: 41669
diff changeset
   721
    //
55dc92f033b9 8166203: NoClassDefFoundError should not be thrown if class is in_error_state at link time
iklam
parents: 41669
diff changeset
   722
    // Note that the NoClassDefFoundError is not part of the JLS, and should not be thrown
55dc92f033b9 8166203: NoClassDefFoundError should not be thrown if class is in_error_state at link time
iklam
parents: 41669
diff changeset
   723
    // if we are executing Java code. This is not a problem for CDS dumping phase since
55dc92f033b9 8166203: NoClassDefFoundError should not be thrown if class is in_error_state at link time
iklam
parents: 41669
diff changeset
   724
    // it doesn't execute any Java code.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   725
    ResourceMark rm(THREAD);
46431
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   726
    Exceptions::fthrow(THREAD_AND_LOCATION,
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   727
                       vmSymbols::java_lang_NoClassDefFoundError(),
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   728
                       "Class %s, or one of its supertypes, failed class initialization",
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   729
                       external_name());
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   730
    return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
  // return if already verified
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   733
  if (is_linked()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
  // Timing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
  // timer handles recursion
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
  assert(THREAD->is_Java_thread(), "non-JavaThread in link_class_impl");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
  JavaThread* jt = (JavaThread*)THREAD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
  // link super class before linking this class
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   743
  Klass* super_klass = super();
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   744
  if (super_klass != NULL) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   745
    if (super_klass->is_interface()) {  // check if super class is an interface
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
      ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
      Exceptions::fthrow(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
        THREAD_AND_LOCATION,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   749
        vmSymbols::java_lang_IncompatibleClassChangeError(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
        "class %s has interface %s as super class",
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   751
        external_name(),
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   752
        super_klass->external_name()
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
      );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   757
    InstanceKlass* ik_super = InstanceKlass::cast(super_klass);
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   758
    ik_super->link_class_impl(CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
489c9b5090e2 Initial load
duke
parents:
diff changeset
   761
  // link all interfaces implemented by this class before linking this class
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   762
  Array<InstanceKlass*>* interfaces = local_interfaces();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
  int num_interfaces = interfaces->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
  for (int index = 0; index < num_interfaces; index++) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   765
    InstanceKlass* interk = interfaces->at(index);
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   766
    interk->link_class_impl(CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
  // in case the class is linked in the process of linking its superclasses
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   770
  if (is_linked()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   773
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   774
  // 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
   775
  // the verification time
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   776
  PerfClassTraceTime vmtimer(ClassLoader::perf_class_link_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   777
                             ClassLoader::perf_class_link_selftime(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   778
                             ClassLoader::perf_classes_linked(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   779
                             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
   780
                             jt->get_thread_stat()->perf_timers_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   781
                             PerfClassTraceTime::CLASS_LINK);
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   782
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
  // verification & rewriting
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
  {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   785
    HandleMark hm(THREAD);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   786
    Handle h_init_lock(THREAD, init_lock());
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
   787
    ObjectLocker ol(h_init_lock, THREAD, h_init_lock() != NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
    // rewritten will have been set if loader constraint error found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
    // on an earlier link attempt
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
    // don't verify or rewrite if already rewritten
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   791
    //
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   792
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   793
    if (!is_linked()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   794
      if (!is_rewritten()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
        {
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   796
          bool verify_ok = verify_code(THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
          if (!verify_ok) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
            return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
        // Just in case a side-effect of verify linked this class already
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
        // (which can sometimes happen since the verifier loads classes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
        // using custom class loaders, which are free to initialize things)
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   805
        if (is_linked()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
          return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
489c9b5090e2 Initial load
duke
parents:
diff changeset
   809
        // also sets rewritten
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   810
        rewrite_class(CHECK_false);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   811
      } else if (is_shared()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   812
        SystemDictionaryShared::check_verification_constraints(this, CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   815
      // relocate jsrs and link methods after they are all rewritten
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   816
      link_methods(CHECK_false);
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   817
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
      // Initialize the vtable and interface table after
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
      // methods have been rewritten since rewrite may
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   820
      // fabricate new Method*s.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
      // also does loader constraint checking
39714
976b97b59d87 8153312: Constrain AppCDS behavior
jiangli
parents: 39713
diff changeset
   822
      //
976b97b59d87 8153312: Constrain AppCDS behavior
jiangli
parents: 39713
diff changeset
   823
      // initialize_vtable and initialize_itable need to be rerun for
976b97b59d87 8153312: Constrain AppCDS behavior
jiangli
parents: 39713
diff changeset
   824
      // a shared class if the class is not loaded by the NULL classloader.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   825
      ClassLoaderData * loader_data = class_loader_data();
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   826
      if (!(is_shared() &&
39714
976b97b59d87 8153312: Constrain AppCDS behavior
jiangli
parents: 39713
diff changeset
   827
            loader_data->is_the_null_class_loader_data())) {
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   828
        vtable().initialize_vtable(true, CHECK_false);
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   829
        itable().initialize_itable(true, CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
      else {
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   833
        vtable().verify(tty, true);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
        // In case itable verification is ever added.
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   835
        // itable().verify(tty, true);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
#endif
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   838
      set_init_state(linked);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
      if (JvmtiExport::should_post_class_prepare()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
        Thread *thread = THREAD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   841
        assert(thread->is_Java_thread(), "thread->is_Java_thread()");
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   842
        JvmtiExport::post_class_prepare((JavaThread *) thread, this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
// Rewrite the byte codes of all of the methods of a class.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
// The rewriter must be called exactly once. Rewriting must happen after
489c9b5090e2 Initial load
duke
parents:
diff changeset
   851
// 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
   852
void InstanceKlass::rewrite_class(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   853
  assert(is_loaded(), "must be loaded");
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   854
  if (is_rewritten()) {
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   855
    assert(is_shared(), "rewriting an unshared class?");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   857
  }
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   858
  Rewriter::rewrite(this, CHECK);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   859
  set_rewritten();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   861
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   862
// 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
   863
// 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
   864
// 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
   865
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
   866
  int len = methods()->length();
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   867
  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
   868
    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
   869
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   870
    // 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
   871
    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
   872
  }
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   873
}
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   874
27402
5c4675ddc00c 8043275: Fix interface initialization for default methods.
acorn
parents: 26558
diff changeset
   875
// Eagerly initialize superinterfaces that declare default methods (concrete instance: any access)
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   876
void InstanceKlass::initialize_super_interfaces(TRAPS) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   877
  assert (has_nonstatic_concrete_methods(), "caller should have checked this");
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   878
  for (int i = 0; i < local_interfaces()->length(); ++i) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   879
    InstanceKlass* ik = local_interfaces()->at(i);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   880
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   881
    // Initialization is depth first search ie. we start with top of the inheritance tree
41669
2091069b6851 8081800: AbstractMethodError when evaluating a private method in an interface via debugger
dholmes
parents: 41293
diff changeset
   882
    // has_nonstatic_concrete_methods drives searching superinterfaces since it
2091069b6851 8081800: AbstractMethodError when evaluating a private method in an interface via debugger
dholmes
parents: 41293
diff changeset
   883
    // means has_nonstatic_concrete_methods in its superinterface hierarchy
2091069b6851 8081800: AbstractMethodError when evaluating a private method in an interface via debugger
dholmes
parents: 41293
diff changeset
   884
    if (ik->has_nonstatic_concrete_methods()) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   885
      ik->initialize_super_interfaces(CHECK);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   886
    }
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   887
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   888
    // Only initialize() interfaces that "declare" concrete methods.
41669
2091069b6851 8081800: AbstractMethodError when evaluating a private method in an interface via debugger
dholmes
parents: 41293
diff changeset
   889
    if (ik->should_be_initialized() && ik->declares_nonstatic_concrete_methods()) {
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   890
      ik->initialize(CHECK);
27402
5c4675ddc00c 8043275: Fix interface initialization for default methods.
acorn
parents: 26558
diff changeset
   891
    }
5c4675ddc00c 8043275: Fix interface initialization for default methods.
acorn
parents: 26558
diff changeset
   892
  }
5c4675ddc00c 8043275: Fix interface initialization for default methods.
acorn
parents: 26558
diff changeset
   893
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   895
void InstanceKlass::initialize_impl(TRAPS) {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   896
  HandleMark hm(THREAD);
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   897
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
  // Make sure klass is linked (verified) before initialization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
  // A class could already be verified, since it has been reflected upon.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   900
  link_class(CHECK);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   901
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   902
  DTRACE_CLASSINIT_PROBE(required, -1);
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   903
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   904
  bool wait = false;
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   905
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
  // refer to the JVM book page 47 for description of steps
489c9b5090e2 Initial load
duke
parents:
diff changeset
   907
  // Step 1
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   908
  {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   909
    Handle h_init_lock(THREAD, init_lock());
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
   910
    ObjectLocker ol(h_init_lock, THREAD, h_init_lock() != NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
    Thread *self = THREAD; // it's passed the current thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
    // Step 2
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
    // If we were to use wait() instead of waitInterruptibly() then
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
    // we might end up throwing IE from link/symbol resolution sites
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
    // that aren't expected to throw.  This would wreak havoc.  See 6320309.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   918
    while(is_being_initialized() && !is_reentrant_initialization(self)) {
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   919
        wait = true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
      ol.waitUninterruptibly(CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
    // Step 3
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   924
    if (is_being_initialized() && is_reentrant_initialization(self)) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   925
      DTRACE_CLASSINIT_PROBE_WAIT(recursive, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
      return;
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   927
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
    // Step 4
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   930
    if (is_initialized()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   931
      DTRACE_CLASSINIT_PROBE_WAIT(concurrent, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
      return;
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   933
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
    // Step 5
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   936
    if (is_in_error_state()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   937
      DTRACE_CLASSINIT_PROBE_WAIT(erroneous, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
      ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
      const char* desc = "Could not initialize class ";
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   940
      const char* className = external_name();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
      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
   942
      char* message = NEW_RESOURCE_ARRAY(char, msglen);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
      if (NULL == message) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
        // Out of memory: can't create detailed error message
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
   945
          THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), className);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
        jio_snprintf(message, msglen, "%s%s", desc, className);
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
   948
          THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), message);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
    // Step 6
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   953
    set_init_state(being_initialized);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   954
    set_init_thread(self);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
  // Step 7
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   958
  // Next, if C is a class rather than an interface, initialize it's super class and super
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   959
  // interfaces.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   960
  if (!is_interface()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   961
    Klass* super_klass = super();
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   962
    if (super_klass != NULL && super_klass->should_be_initialized()) {
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   963
      super_klass->initialize(THREAD);
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   964
    }
41669
2091069b6851 8081800: AbstractMethodError when evaluating a private method in an interface via debugger
dholmes
parents: 41293
diff changeset
   965
    // If C implements any interface that declares a non-static, concrete method,
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   966
    // the initialization of C triggers initialization of its super interfaces.
41669
2091069b6851 8081800: AbstractMethodError when evaluating a private method in an interface via debugger
dholmes
parents: 41293
diff changeset
   967
    // Only need to recurse if has_nonstatic_concrete_methods which includes declaring and
2091069b6851 8081800: AbstractMethodError when evaluating a private method in an interface via debugger
dholmes
parents: 41293
diff changeset
   968
    // having a superinterface that declares, non-static, concrete methods
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   969
    if (!HAS_PENDING_EXCEPTION && has_nonstatic_concrete_methods()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   970
      initialize_super_interfaces(THREAD);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   971
    }
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   972
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   973
    // If any exceptions, complete abruptly, throwing the same exception as above.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
    if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
      Handle e(THREAD, PENDING_EXCEPTION);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
      CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
      {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   978
        EXCEPTION_MARK;
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   979
        // Locks object, set state, and notify all waiting threads
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   980
        set_initialization_state_and_notify(initialization_error, THREAD);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   981
        CLEAR_PENDING_EXCEPTION;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   982
      }
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   983
      DTRACE_CLASSINIT_PROBE_WAIT(super__failed, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
      THROW_OOP(e());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   987
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   988
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
   989
  // Look for aot compiled methods for this klass, including class initializer.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   990
  AOTLoader::load_for_klass(this, THREAD);
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
   991
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
  // Step 8
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
    assert(THREAD->is_Java_thread(), "non-JavaThread in initialize_impl");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   995
    JavaThread* jt = (JavaThread*)THREAD;
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   996
    DTRACE_CLASSINIT_PROBE_WAIT(clinit, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
    // Timer includes any side effects of class initialization (resolution,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   998
    // 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
   999
    PerfClassTraceTime timer(ClassLoader::perf_class_init_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
  1000
                             ClassLoader::perf_class_init_selftime(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
  1001
                             ClassLoader::perf_classes_inited(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
  1002
                             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
  1003
                             jt->get_thread_stat()->perf_timers_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
  1004
                             PerfClassTraceTime::CLASS_CLINIT);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1005
    call_class_initializer(THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
  // Step 9
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1009
  if (!HAS_PENDING_EXCEPTION) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1010
    set_initialization_state_and_notify(fully_initialized, CHECK);
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
  1011
    {
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
  1012
      debug_only(vtable().verify(tty, true);)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
  else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
    // Step 10 and 11
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
    Handle e(THREAD, PENDING_EXCEPTION);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1018
    CLEAR_PENDING_EXCEPTION;
22897
77e1024a4a14 4505697: nsk/jdi/ExceptionEvent/_itself_/exevent006 and exevent008 tests fail with InvocationTargetException
jbachorik
parents: 22881
diff changeset
  1019
    // 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
  1020
    // 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
  1021
    JvmtiExport::clear_detected_exception((JavaThread*)THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1023
      EXCEPTION_MARK;
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1024
      set_initialization_state_and_notify(initialization_error, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1025
      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
  1026
      // 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
  1027
      // 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
  1028
      JvmtiExport::clear_detected_exception((JavaThread*)THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1029
    }
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1030
    DTRACE_CLASSINIT_PROBE_WAIT(error, -1, wait);
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4094
diff changeset
  1031
    if (e->is_a(SystemDictionary::Error_klass())) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
      THROW_OOP(e());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1034
      JavaCallArguments args(e);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  1035
      THROW_ARG(vmSymbols::java_lang_ExceptionInInitializerError(),
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  1036
                vmSymbols::throwable_void_signature(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
                &args);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1039
  }
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1040
  DTRACE_CLASSINIT_PROBE_WAIT(end, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
}
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
void InstanceKlass::set_initialization_state_and_notify(ClassState state, TRAPS) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1045
  Handle h_init_lock(THREAD, init_lock());
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
  1046
  if (h_init_lock() != NULL) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1047
    ObjectLocker ol(h_init_lock, THREAD);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1048
    set_init_state(state);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1049
    fence_and_clear_init_lock();
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
  1050
    ol.notify_all(CHECK);
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
  1051
  } else {
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
  1052
    assert(h_init_lock() != NULL, "The initialization state should never be set twice");
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1053
    set_init_state(state);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
  1054
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1056
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  1057
Klass* InstanceKlass::implementor() const {
51379
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1058
  assert_locked_or_safepoint(Compile_lock);
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1059
  Klass** k = adr_implementor();
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1060
  if (k == NULL) {
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1061
    return NULL;
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1062
  } else {
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  1063
    return *k;
51379
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1064
  }
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1065
}
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1066
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1067
void InstanceKlass::set_implementor(Klass* k) {
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1068
  assert_lock_strong(Compile_lock);
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1069
  assert(is_interface(), "not interface");
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1070
  Klass** addr = adr_implementor();
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1071
  assert(addr != NULL, "null addr");
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1072
  if (addr != NULL) {
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1073
    *addr = k;
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1074
  }
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1075
}
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1076
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1077
int  InstanceKlass::nof_implementors() const {
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1078
  assert_lock_strong(Compile_lock);
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1079
  Klass* k = implementor();
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1080
  if (k == NULL) {
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1081
    return 0;
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1082
  } else if (k != this) {
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1083
    return 1;
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1084
  } else {
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1085
    return 2;
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1086
  }
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1087
}
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1088
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1089
// 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
  1090
// 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
  1091
// 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
  1092
// 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
  1093
//   NULL                  - no implementor
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1094
//   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
  1095
//   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
  1096
//
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1097
// The _implementor field only exists for interfaces.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1098
void InstanceKlass::add_implementor(Klass* k) {
51379
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  1099
  assert_lock_strong(Compile_lock);
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1100
  assert(is_interface(), "not interface");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
  // Filter out my subinterfaces.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1102
  // (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
  1103
  if (InstanceKlass::cast(k)->is_interface()) return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
  // Filter out subclasses whose supers already implement me.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
  // (Note: CHA must walk subclasses of direct implementors
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1107
  // in order to locate indirect implementors.)
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  1108
  Klass* sk = k->super();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1109
  if (sk != NULL && InstanceKlass::cast(sk)->implements_interface(this))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
    // We only need to check one immediate superclass, since the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
    // implements_interface query looks at transitive_interfaces.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
    // Any supers of the super have the same (or fewer) transitive_interfaces.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1114
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1115
  Klass* ik = implementor();
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1116
  if (ik == NULL) {
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1117
    set_implementor(k);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1118
  } 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
  1119
    // 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
  1120
    // more than one implementors.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1121
    set_implementor(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
  // The implementor also implements the transitive_interfaces
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1125
  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
  1126
    InstanceKlass::cast(local_interfaces()->at(index))->add_implementor(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1129
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1130
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
  1131
  if (is_interface()) {
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1132
    set_implementor(NULL);
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1133
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1136
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1137
void InstanceKlass::process_interfaces(Thread *thread) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
  // link this class into the implementors list of every interface it implements
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1139
  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
  1140
    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
  1141
    InstanceKlass* interf = InstanceKlass::cast(local_interfaces()->at(i));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1142
    assert(interf->is_interface(), "expected interface");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1143
    interf->add_implementor(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1146
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1147
bool InstanceKlass::can_be_primary_super_slow() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
  if (is_interface())
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
  else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
    return Klass::can_be_primary_super_slow();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1153
49948
ff8dbb56740a 8200466: Revisit the setting of _transitive_interfaces in InstanceKlass
ccheung
parents: 49824
diff changeset
  1154
GrowableArray<Klass*>* InstanceKlass::compute_secondary_supers(int num_extra_slots,
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1155
                                                               Array<InstanceKlass*>* transitive_interfaces) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1156
  // The secondaries are the implemented interfaces.
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1157
  Array<InstanceKlass*>* interfaces = transitive_interfaces;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
  int num_secondaries = num_extra_slots + interfaces->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1159
  if (num_secondaries == 0) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1160
    // Must share this for correct bootstrapping!
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1161
    set_secondary_supers(Universe::the_empty_klass_array());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1162
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1163
  } else if (num_extra_slots == 0) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1164
    // The secondary super list is exactly the same as the transitive interfaces, so
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1165
    // let's use it instead of making a copy.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1166
    // Redefine classes has to be careful not to delete this!
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1167
    // We need the cast because Array<Klass*> is NOT a supertype of Array<InstanceKlass*>,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1168
    // (but it's safe to do here because we won't write into _secondary_supers from this point on).
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1169
    set_secondary_supers((Array<Klass*>*)(address)interfaces);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1170
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1171
  } else {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1172
    // 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
  1173
    // into the secondary super list with extra slots.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1174
    GrowableArray<Klass*>* secondaries = new GrowableArray<Klass*>(interfaces->length());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1175
    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
  1176
      secondaries->push(interfaces->at(i));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
    return secondaries;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1181
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1182
bool InstanceKlass::compute_is_subtype_of(Klass* k) {
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1183
  if (k->is_interface()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
    return implements_interface(k);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
    return Klass::compute_is_subtype_of(k);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1189
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1190
bool InstanceKlass::implements_interface(Klass* k) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1191
  if (this == k) return true;
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1192
  assert(k->is_interface(), "should be an interface class");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1193
  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
  1194
    if (transitive_interfaces()->at(i) == k) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1200
21768
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1201
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
  1202
  // Verify direct super interface
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1203
  if (this == k) return true;
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1204
  assert(k->is_interface(), "should be an interface class");
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1205
  for (int i = 0; i < local_interfaces()->length(); i++) {
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1206
    if (local_interfaces()->at(i) == k) {
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1207
      return true;
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1208
    }
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1209
  }
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1210
  return false;
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1211
}
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1212
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1213
objArrayOop InstanceKlass::allocate_objArray(int n, int length, TRAPS) {
52033
d6aa9ea2405d 8208686: [AOT] JVMTI ResourceExhausted event repeated for same allocation
dnsimon
parents: 51962
diff changeset
  1214
  check_array_allocation_length(length, arrayOopDesc::max_array_length(T_OBJECT), CHECK_NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1215
  int size = objArrayOopDesc::object_size(length);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1216
  Klass* ak = array_klass(n, CHECK_NULL);
50882
80abf702eed8 8205683: Refactor heap allocation to separate concerns
eosterlund
parents: 50800
diff changeset
  1217
  objArrayOop o = (objArrayOop)Universe::heap()->array_allocate(ak, size, length,
80abf702eed8 8205683: Refactor heap allocation to separate concerns
eosterlund
parents: 50800
diff changeset
  1218
                                                                /* do_zero */ true, CHECK_NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
  return o;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1222
instanceOop InstanceKlass::register_finalizer(instanceOop i, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1223
  if (TraceFinalizerRegistration) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1224
    tty->print("Registered ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
    i->print_value_on(tty);
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  1226
    tty->print_cr(" (" INTPTR_FORMAT ") as finalizable", p2i(i));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1228
  instanceHandle h_i(THREAD, i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
  // Pass the handle as argument, JavaCalls::call expects oop as jobjects
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
  JavaValue result(T_VOID);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
  JavaCallArguments args(h_i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1232
  methodHandle mh (THREAD, Universe::finalizer_register_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
  JavaCalls::call(&result, mh, &args, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
  return h_i();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1237
instanceOop InstanceKlass::allocate_instance(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
  bool has_finalizer_flag = has_finalizer(); // Query before possible GC
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
  int size = size_helper();  // Query before forming handle.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
  instanceOop i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
50882
80abf702eed8 8205683: Refactor heap allocation to separate concerns
eosterlund
parents: 50800
diff changeset
  1243
  i = (instanceOop)Universe::heap()->obj_allocate(this, size, CHECK_NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  if (has_finalizer_flag && !RegisterFinalizersAtInit) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
    i = register_finalizer(i, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
  return i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1249
49393
93fe2fc5c093 8199472: Fix non-PCH build after JDK-8199319
simonis
parents: 49360
diff changeset
  1250
instanceHandle InstanceKlass::allocate_instance_handle(TRAPS) {
93fe2fc5c093 8199472: Fix non-PCH build after JDK-8199319
simonis
parents: 49360
diff changeset
  1251
  return instanceHandle(THREAD, allocate_instance(THREAD));
93fe2fc5c093 8199472: Fix non-PCH build after JDK-8199319
simonis
parents: 49360
diff changeset
  1252
}
93fe2fc5c093 8199472: Fix non-PCH build after JDK-8199319
simonis
parents: 49360
diff changeset
  1253
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1254
void InstanceKlass::check_valid_for_instantiation(bool throwError, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
  if (is_interface() || is_abstract()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1256
    ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1257
    THROW_MSG(throwError ? vmSymbols::java_lang_InstantiationError()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1258
              : vmSymbols::java_lang_InstantiationException(), external_name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1259
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1260
  if (this == SystemDictionary::Class_klass()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
    ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
    THROW_MSG(throwError ? vmSymbols::java_lang_IllegalAccessError()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
              : vmSymbols::java_lang_IllegalAccessException(), external_name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1266
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1267
Klass* InstanceKlass::array_klass_impl(bool or_null, int n, TRAPS) {
40887
8d35e19f5548 8158854: Ensure release_store is paired with load_acquire in lock-free code
dholmes
parents: 40655
diff changeset
  1268
  // Need load-acquire for lock-free read
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1269
  if (array_klasses_acquire() == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
    if (or_null) return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1273
    JavaThread *jt = (JavaThread *)THREAD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1274
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1275
      // Atomic creation of array_klasses
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
      MutexLocker mc(Compile_lock, THREAD);   // for vtables
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
      MutexLocker ma(MultiArray_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
      // Check if update has already taken place
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1280
      if (array_klasses() == NULL) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1281
        Klass*    k = ObjArrayKlass::allocate_objArray_klass(class_loader_data(), 1, this, CHECK_NULL);
40887
8d35e19f5548 8158854: Ensure release_store is paired with load_acquire in lock-free code
dholmes
parents: 40655
diff changeset
  1282
        // use 'release' to pair with lock-free load
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1283
        release_set_array_klasses(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1286
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1287
  // _this will always be set at this point
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1288
  ObjArrayKlass* oak = (ObjArrayKlass*)array_klasses();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1289
  if (or_null) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
    return oak->array_klass_or_null(n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
  }
27680
8ecc0871c18e 8064811: Use THREAD instead of CHECK_NULL in return statements
stefank
parents: 27435
diff changeset
  1292
  return oak->array_klass(n, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1294
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1295
Klass* InstanceKlass::array_klass_impl(bool or_null, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
  return array_klass_impl(or_null, 1, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1298
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1299
static int call_class_initializer_counter = 0;   // for debugging
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  1301
Method* InstanceKlass::class_initializer() const {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1302
  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
  1303
      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
  1304
  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
  1305
    return clinit;
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8297
diff changeset
  1306
  }
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8297
diff changeset
  1307
  return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1308
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1309
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1310
void InstanceKlass::call_class_initializer(TRAPS) {
14477
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1311
  if (ReplayCompiles &&
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1312
      (ReplaySuppressInitializers == 1 ||
46630
75aa3e39d02c 8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents: 46562
diff changeset
  1313
       (ReplaySuppressInitializers >= 2 && class_loader() != NULL))) {
14477
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1314
    // 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
  1315
    return;
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1316
  }
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1317
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1318
  methodHandle h_method(THREAD, class_initializer());
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1319
  assert(!is_initialized(), "we cannot initialize twice");
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1320
  LogTarget(Info, class, init) lt;
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1321
  if (lt.is_enabled()) {
34628
6d08ec72803b 8142976: Reimplement TraceClassInitialization with Unified Logging
mockner
parents: 33638
diff changeset
  1322
    ResourceMark rm;
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1323
    LogStream ls(lt);
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1324
    ls.print("%d Initializing ", call_class_initializer_counter++);
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1325
    name()->print_value_on(&ls);
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1326
    ls.print_cr("%s (" INTPTR_FORMAT ")", h_method() == NULL ? "(no method)" : "", p2i(this));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1327
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1328
  if (h_method() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1329
    JavaCallArguments args; // No arguments
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1330
    JavaValue result(T_VOID);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1331
    JavaCalls::call(&result, h_method, &args, CHECK); // Static call (no args)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1332
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33576
diff changeset
  1336
void InstanceKlass::mask_for(const methodHandle& method, int bci,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
  InterpreterOopMap* entry_for) {
38937
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1338
  // Lazily create the _oop_map_cache at first request
47634
6a0c42c40cd1 8188220: Remove Atomic::*_ptr() uses and overloads from hotspot
coleenp
parents: 47580
diff changeset
  1339
  // Lock-free access requires load_acquire.
6a0c42c40cd1 8188220: Remove Atomic::*_ptr() uses and overloads from hotspot
coleenp
parents: 47580
diff changeset
  1340
  OopMapCache* oop_map_cache = OrderAccess::load_acquire(&_oop_map_cache);
38937
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1341
  if (oop_map_cache == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1342
    MutexLocker x(OopMapCacheAlloc_lock);
38937
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1343
    // Check if _oop_map_cache was allocated while we were waiting for this lock
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1344
    if ((oop_map_cache = _oop_map_cache) == NULL) {
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1345
      oop_map_cache = new OopMapCache();
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1346
      // Ensure _oop_map_cache is stable, since it is examined without a lock
47634
6a0c42c40cd1 8188220: Remove Atomic::*_ptr() uses and overloads from hotspot
coleenp
parents: 47580
diff changeset
  1347
      OrderAccess::release_store(&_oop_map_cache, oop_map_cache);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1349
  }
38937
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1350
  // _oop_map_cache is constant after init; lookup below does its own locking.
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1351
  oop_map_cache->lookup(method, bci, entry_for);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1352
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1353
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1355
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
  1356
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1357
    Symbol* f_name = fs.name();
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1358
    Symbol* f_sig  = fs.signature();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
    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
  1360
      fd->reinitialize(const_cast<InstanceKlass*>(this), fs.index());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1361
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1362
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1363
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1364
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1366
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1368
Klass* InstanceKlass::find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
  const int n = local_interfaces()->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1370
  for (int i = 0; i < n; i++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1371
    Klass* intf1 = local_interfaces()->at(i);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1372
    assert(intf1->is_interface(), "just checking type");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1373
    // search for field in current interface
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1374
    if (InstanceKlass::cast(intf1)->find_local_field(name, sig, fd)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
      assert(fd->is_static(), "interface field must be static");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1376
      return intf1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1377
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1378
    // search for field in direct superinterfaces
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1379
    Klass* intf2 = InstanceKlass::cast(intf1)->find_interface_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1380
    if (intf2 != NULL) return intf2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
  // otherwise field lookup fails
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1385
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1387
Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
  // search order according to newest JVM spec (5.4.3.2, p.167).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
  // 1) search for field in current klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
  if (find_local_field(name, sig, fd)) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1391
    return const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1393
  // 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
  1394
  { Klass* intf = find_interface_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1395
    if (intf != NULL) return intf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1397
  // 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
  1398
  { Klass* supr = super();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1399
    if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1400
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
  // 4) otherwise field lookup fails
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1404
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1405
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1406
Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
  // search order according to newest JVM spec (5.4.3.2, p.167).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
  // 1) search for field in current klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
  if (find_local_field(name, sig, fd)) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1410
    if (fd->is_static() == is_static) return const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1412
  // 2) search for field recursively in direct superinterfaces
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
  if (is_static) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1414
    Klass* intf = find_interface_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
    if (intf != NULL) return intf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1416
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
  // 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
  1418
  { Klass* supr = super();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1419
    if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, is_static, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1420
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
  // 4) otherwise field lookup fails
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1424
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1425
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1426
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
  1427
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1428
    if (fs.offset() == offset) {
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  1429
      fd->reinitialize(const_cast<InstanceKlass*>(this), fs.index());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1430
      if (fd->is_static() == is_static) return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1431
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1432
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1433
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1434
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1435
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1437
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
  1438
  Klass* klass = const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
  while (klass != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1440
    if (InstanceKlass::cast(klass)->find_local_field_from_offset(offset, is_static, fd)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
    }
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1443
    klass = klass->super();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1444
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1446
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1449
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
  1450
  // 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
  1451
  // 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
  1452
  if (!is_loaded()) {
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1453
    return;
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1454
  }
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1455
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1456
  int len = methods()->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1457
  for (int index = 0; index < len; index++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1458
    Method* m = methods()->at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1459
    assert(m->is_method(), "must be method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1460
    f(m);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1461
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1462
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  1464
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1465
void InstanceKlass::do_local_static_fields(FieldClosure* cl) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1466
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1467
    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
  1468
      fieldDescriptor& fd = fs.field_descriptor();
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1469
      cl->do_field(&fd);
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1470
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1471
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1472
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1473
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1474
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  1475
void InstanceKlass::do_local_static_fields(void f(fieldDescriptor*, Handle, TRAPS), Handle mirror, TRAPS) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1476
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1477
    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
  1478
      fieldDescriptor& fd = fs.field_descriptor();
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  1479
      f(&fd, mirror, CHECK);
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1480
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1481
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1482
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1483
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1484
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1485
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
  1486
  return a[0] - b[0];
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1487
}
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1488
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1489
void InstanceKlass::do_nonstatic_fields(FieldClosure* cl) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1490
  InstanceKlass* super = superklass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1491
  if (super != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1492
    super->do_nonstatic_fields(cl);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1493
  }
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1494
  fieldDescriptor fd;
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1495
  int length = java_fields_count();
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1496
  // In DebugInfo nonstatic fields are sorted by offset.
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12587
diff changeset
  1497
  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
  1498
  int j = 0;
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1499
  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
  1500
    fd.reinitialize(this, i);
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1501
    if (!fd.is_static()) {
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1502
      fields_sorted[j + 0] = fd.offset();
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1503
      fields_sorted[j + 1] = i;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1504
      j += 2;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1505
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1506
  }
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1507
  if (j > 0) {
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1508
    length = j;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1509
    // _sort_Fn is defined in growableArray.hpp.
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1510
    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
  1511
    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
  1512
      fd.reinitialize(this, fields_sorted[i + 1]);
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1513
      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
  1514
      cl->do_field(&fd);
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1515
    }
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1516
  }
27880
afb974a04396 8060074: os::free() takes MemoryTrackingLevel but doesn't need it
coleenp
parents: 27674
diff changeset
  1517
  FREE_C_HEAP_ARRAY(int, fields_sorted);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1518
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1519
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1520
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1521
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
  1522
  if (array_klasses() != NULL)
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13738
diff changeset
  1523
    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
  1524
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1525
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1526
void InstanceKlass::array_klasses_do(void f(Klass* k)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1527
  if (array_klasses() != NULL)
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13738
diff changeset
  1528
    ArrayKlass::cast(array_klasses())->array_klasses_do(f);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1529
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1530
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1531
#ifdef ASSERT
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1532
static int linear_search(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1533
                         const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1534
                         const Symbol* signature) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1535
  const int len = methods->length();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
  for (int index = 0; index < len; index++) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1537
    const Method* const m = methods->at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1538
    assert(m->is_method(), "must be method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1539
    if (m->signature() == signature && m->name() == name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1540
       return index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1541
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1542
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1543
  return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1544
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1545
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1546
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1547
static int binary_search(const Array<Method*>* methods, const Symbol* name) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1548
  int len = methods->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1549
  // methods are sorted, so do binary search
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1550
  int l = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
  int h = len - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1552
  while (l <= h) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1553
    int mid = (l + h) >> 1;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1554
    Method* m = methods->at(mid);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
    assert(m->is_method(), "must be method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
    int res = m->name()->fast_compare(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1557
    if (res == 0) {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1558
      return mid;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1559
    } else if (res < 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1560
      l = mid + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1561
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1562
      h = mid - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1563
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1564
  }
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1565
  return -1;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1566
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1567
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1568
// find_method looks up the name/signature in the local methods array
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1569
Method* InstanceKlass::find_method(const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1570
                                   const Symbol* signature) const {
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1571
  return find_method_impl(name, signature, find_overpass, find_static, find_private);
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1572
}
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1573
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1574
Method* InstanceKlass::find_method_impl(const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1575
                                        const Symbol* signature,
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1576
                                        OverpassLookupMode overpass_mode,
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1577
                                        StaticLookupMode static_mode,
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1578
                                        PrivateLookupMode private_mode) const {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1579
  return InstanceKlass::find_method_impl(methods(),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1580
                                         name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1581
                                         signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1582
                                         overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1583
                                         static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1584
                                         private_mode);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1585
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1586
21913
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1587
// 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
  1588
// and skips over static methods
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1589
Method* InstanceKlass::find_instance_method(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1590
                                            const Symbol* name,
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1591
                                            const Symbol* signature,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1592
                                            PrivateLookupMode private_mode) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1593
  Method* const meth = InstanceKlass::find_method_impl(methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1594
                                                 name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1595
                                                 signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1596
                                                 find_overpass,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1597
                                                 skip_static,
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1598
                                                 private_mode);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1599
  assert(((meth == NULL) || !meth->is_static()),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1600
    "find_instance_method should have skipped statics");
21913
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1601
  return meth;
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1602
}
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1603
28514
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1604
// find_instance_method looks up the name/signature in the local methods array
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1605
// and skips over static methods
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1606
Method* InstanceKlass::find_instance_method(const Symbol* name,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1607
                                            const Symbol* signature,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1608
                                            PrivateLookupMode private_mode) const {
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1609
  return InstanceKlass::find_instance_method(methods(), name, signature, private_mode);
28514
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1610
}
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1611
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1612
// Find looks up the name/signature in the local methods array
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1613
// and filters on the overpass, static and private flags
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1614
// This returns the first one found
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1615
// note that the local methods array can have up to one overpass, one static
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1616
// and one instance (private or not) with the same name/signature
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1617
Method* InstanceKlass::find_local_method(const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1618
                                         const Symbol* signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1619
                                         OverpassLookupMode overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1620
                                         StaticLookupMode static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1621
                                         PrivateLookupMode private_mode) const {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1622
  return InstanceKlass::find_method_impl(methods(),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1623
                                         name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1624
                                         signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1625
                                         overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1626
                                         static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1627
                                         private_mode);
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1628
}
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1629
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1630
// Find looks up the name/signature in the local methods array
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1631
// and filters on the overpass, static and private flags
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1632
// This returns the first one found
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1633
// note that the local methods array can have up to one overpass, one static
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1634
// and one instance (private or not) with the same name/signature
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1635
Method* InstanceKlass::find_local_method(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1636
                                         const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1637
                                         const Symbol* signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1638
                                         OverpassLookupMode overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1639
                                         StaticLookupMode static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1640
                                         PrivateLookupMode private_mode) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1641
  return InstanceKlass::find_method_impl(methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1642
                                         name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1643
                                         signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1644
                                         overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1645
                                         static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1646
                                         private_mode);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1647
}
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1648
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1649
Method* InstanceKlass::find_method(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1650
                                   const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1651
                                   const Symbol* signature) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1652
  return InstanceKlass::find_method_impl(methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1653
                                         name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1654
                                         signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1655
                                         find_overpass,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1656
                                         find_static,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1657
                                         find_private);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1658
}
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1659
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1660
Method* InstanceKlass::find_method_impl(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1661
                                        const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1662
                                        const Symbol* signature,
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1663
                                        OverpassLookupMode overpass_mode,
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1664
                                        StaticLookupMode static_mode,
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1665
                                        PrivateLookupMode private_mode) {
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1666
  int hit = find_method_index(methods, name, signature, overpass_mode, static_mode, private_mode);
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1667
  return hit >= 0 ? methods->at(hit): NULL;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1668
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1669
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1670
// true if method matches signature and conforms to skipping_X conditions.
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1671
static bool method_matches(const Method* m,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1672
                           const Symbol* signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1673
                           bool skipping_overpass,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1674
                           bool skipping_static,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1675
                           bool skipping_private) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1676
  return ((m->signature() == signature) &&
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1677
    (!skipping_overpass || !m->is_overpass()) &&
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1678
    (!skipping_static || !m->is_static()) &&
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1679
    (!skipping_private || !m->is_private()));
28514
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1680
}
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1681
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1682
// Used directly for default_methods to find the index into the
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1683
// default_vtable_indices, and indirectly by find_method
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1684
// 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
  1685
// 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
  1686
// 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
  1687
// 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
  1688
// over an overpass method.
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1689
// There is the possibility in any _method's array to have the same name/signature
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1690
// for a static method, an overpass method and a local instance method
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1691
// To correctly catch a given method, the search criteria may need
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1692
// to explicitly skip the other two. For local instance methods, it
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1693
// is often necessary to skip private methods
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1694
int InstanceKlass::find_method_index(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1695
                                     const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1696
                                     const Symbol* signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1697
                                     OverpassLookupMode overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1698
                                     StaticLookupMode static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1699
                                     PrivateLookupMode private_mode) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1700
  const bool skipping_overpass = (overpass_mode == skip_overpass);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1701
  const bool skipping_static = (static_mode == skip_static);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1702
  const bool skipping_private = (private_mode == skip_private);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1703
  const int hit = binary_search(methods, name);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1704
  if (hit != -1) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1705
    const Method* const m = methods->at(hit);
28514
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1706
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1707
    // 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
  1708
    // for common case, ignoring overpasses if requested.
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1709
    if (method_matches(m, signature, skipping_overpass, skipping_static, skipping_private)) {
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1710
      return hit;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1711
    }
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1712
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1713
    // search downwards through overloaded methods
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1714
    int i;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1715
    for (i = hit - 1; i >= 0; --i) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1716
        const Method* const m = methods->at(i);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1717
        assert(m->is_method(), "must be method");
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1718
        if (m->name() != name) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1719
          break;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1720
        }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1721
        if (method_matches(m, signature, skipping_overpass, skipping_static, skipping_private)) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1722
          return i;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1723
        }
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1724
    }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1725
    // search upwards
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1726
    for (i = hit + 1; i < methods->length(); ++i) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1727
        const Method* const m = methods->at(i);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1728
        assert(m->is_method(), "must be method");
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1729
        if (m->name() != name) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1730
          break;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1731
        }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1732
        if (method_matches(m, signature, skipping_overpass, skipping_static, skipping_private)) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1733
          return i;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1734
        }
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1735
    }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1736
    // not found
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1737
#ifdef ASSERT
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1738
    const int index = (skipping_overpass || skipping_static || skipping_private) ? -1 :
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1739
      linear_search(methods, name, signature);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1740
    assert(-1 == index, "binary search should have found entry %d", index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1741
#endif
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1742
  }
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1743
  return -1;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1744
}
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1745
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1746
int InstanceKlass::find_method_by_name(const Symbol* name, int* end) const {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1747
  return find_method_by_name(methods(), name, end);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1748
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1749
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1750
int InstanceKlass::find_method_by_name(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1751
                                       const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1752
                                       int* end_ptr) {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1753
  assert(end_ptr != NULL, "just checking");
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1754
  int start = binary_search(methods, name);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1755
  int end = start + 1;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1756
  if (start != -1) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1757
    while (start - 1 >= 0 && (methods->at(start - 1))->name() == name) --start;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1758
    while (end < methods->length() && (methods->at(end))->name() == name) ++end;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1759
    *end_ptr = end;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1760
    return start;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1761
  }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1762
  return -1;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1763
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1764
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1765
// uncached_lookup_method searches both the local class methods array and all
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1766
// superclasses methods arrays, skipping any overpass methods in superclasses,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1767
// and possibly skipping private methods.
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1768
Method* InstanceKlass::uncached_lookup_method(const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1769
                                              const Symbol* signature,
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1770
                                              OverpassLookupMode overpass_mode,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1771
                                              PrivateLookupMode private_mode) const {
28731
f7339cba0a6a 8067480: Crash in klassItable::initialize_itable_for_interface when running vm.runtime.defmeth.StaticMethodsTest.
lfoltan
parents: 28365
diff changeset
  1772
  OverpassLookupMode overpass_local_mode = overpass_mode;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1773
  const Klass* klass = this;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1774
  while (klass != NULL) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1775
    Method* const method = InstanceKlass::cast(klass)->find_method_impl(name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1776
                                                                        signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1777
                                                                        overpass_local_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1778
                                                                        find_static,
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1779
                                                                        private_mode);
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1780
    if (method != NULL) {
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1781
      return method;
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1782
    }
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  1783
    klass = klass->super();
28731
f7339cba0a6a 8067480: Crash in klassItable::initialize_itable_for_interface when running vm.runtime.defmeth.StaticMethodsTest.
lfoltan
parents: 28365
diff changeset
  1784
    overpass_local_mode = skip_overpass;   // Always ignore overpass methods in superclasses
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1785
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1786
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1787
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1788
24828
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1789
#ifdef ASSERT
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1790
// search through class hierarchy and return true if this class or
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1791
// one of the superclasses was redefined
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1792
bool InstanceKlass::has_redefined_this_or_super() const {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1793
  const Klass* klass = this;
24828
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1794
  while (klass != NULL) {
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  1795
    if (InstanceKlass::cast(klass)->has_been_redefined()) {
24828
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1796
      return true;
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1797
    }
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  1798
    klass = klass->super();
24828
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1799
  }
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1800
  return false;
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1801
}
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1802
#endif
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1803
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1804
// 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
  1805
// Do NOT return private or static methods
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1806
Method* InstanceKlass::lookup_method_in_ordered_interfaces(Symbol* name,
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1807
                                                         Symbol* signature) const {
20396
0ed0e7aa1ed8 8026185: nsk/jvmit/GetMethodDeclaringClass/declcls001 failed
acorn
parents: 20391
diff changeset
  1808
  Method* m = NULL;
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1809
  if (default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1810
    m = find_method(default_methods(), name, signature);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1811
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1812
  // Look up interfaces
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1813
  if (m == NULL) {
28731
f7339cba0a6a 8067480: Crash in klassItable::initialize_itable_for_interface when running vm.runtime.defmeth.StaticMethodsTest.
lfoltan
parents: 28365
diff changeset
  1814
    m = lookup_method_in_all_interfaces(name, signature, find_defaults);
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1815
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1816
  return m;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1817
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1818
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1819
// 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
  1820
// 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
  1821
// 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
  1822
Method* InstanceKlass::lookup_method_in_all_interfaces(Symbol* name,
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1823
                                                       Symbol* signature,
28731
f7339cba0a6a 8067480: Crash in klassItable::initialize_itable_for_interface when running vm.runtime.defmeth.StaticMethodsTest.
lfoltan
parents: 28365
diff changeset
  1824
                                                       DefaultsLookupMode defaults_mode) const {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1825
  Array<InstanceKlass*>* all_ifs = transitive_interfaces();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1826
  int num_ifs = all_ifs->length();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1827
  InstanceKlass *ik = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1828
  for (int i = 0; i < num_ifs; i++) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1829
    ik = all_ifs->at(i);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1830
    Method* m = ik->lookup_method(name, signature);
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1831
    if (m != NULL && m->is_public() && !m->is_static() &&
28731
f7339cba0a6a 8067480: Crash in klassItable::initialize_itable_for_interface when running vm.runtime.defmeth.StaticMethodsTest.
lfoltan
parents: 28365
diff changeset
  1832
        ((defaults_mode != skip_defaults) || !m->is_default_method())) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1833
      return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1834
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1835
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1836
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1837
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1838
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1839
/* jni_id_for_impl for jfieldIds only */
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1840
JNIid* InstanceKlass::jni_id_for_impl(int offset) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1841
  MutexLocker ml(JfieldIdCreation_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1842
  // Retry lookup after we got the lock
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1843
  JNIid* probe = jni_ids() == NULL ? NULL : jni_ids()->find(offset);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1844
  if (probe == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1845
    // Slow case, allocate new static field identifier
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1846
    probe = new JNIid(this, offset, jni_ids());
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1847
    set_jni_ids(probe);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1848
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1849
  return probe;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1850
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1851
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1852
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1853
/* jni_id_for for jfieldIds only */
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1854
JNIid* InstanceKlass::jni_id_for(int offset) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1855
  JNIid* probe = jni_ids() == NULL ? NULL : jni_ids()->find(offset);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1856
  if (probe == NULL) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1857
    probe = jni_id_for_impl(offset);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1858
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1859
  return probe;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1860
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1861
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1862
u2 InstanceKlass::enclosing_method_data(int offset) const {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1863
  const Array<jushort>* const 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
  1864
  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
  1865
    return 0;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1866
  }
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1867
  const int length = inner_class_list->length();
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1868
  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
  1869
    return 0;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1870
  }
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1871
  const int index = length - enclosing_method_attribute_size;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1872
  assert(offset < enclosing_method_attribute_size, "invalid offset");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1873
  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
  1874
}
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1875
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1876
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
  1877
                                                 u2 method_index) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1878
  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
  1879
  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
  1880
  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
  1881
  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
  1882
    int index = length - enclosing_method_attribute_size;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1883
    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
  1884
      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
  1885
    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
  1886
      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
  1887
  }
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1888
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1889
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1890
// Lookup or create a jmethodID.
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1891
// 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
  1892
// 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
  1893
// and/or other cache consistency problems.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1894
//
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1895
jmethodID InstanceKlass::get_jmethod_id(const methodHandle& method_h) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1896
  size_t idnum = (size_t)method_h->method_idnum();
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1897
  jmethodID* jmeths = methods_jmethod_ids_acquire();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1898
  size_t length = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1899
  jmethodID id = NULL;
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1900
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1901
  // 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
  1902
  // 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
  1903
  // 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
  1904
  // 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
  1905
  // A partially constructed cache should never be seen by a racing
47634
6a0c42c40cd1 8188220: Remove Atomic::*_ptr() uses and overloads from hotspot
coleenp
parents: 47580
diff changeset
  1906
  // thread. We also use release_store() to save a new jmethodID
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1907
  // 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
  1908
  // 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
  1909
  // 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
  1910
  // 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
  1911
  // generally acquired in those two cases.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1912
  //
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1913
  // 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
  1914
  // 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
  1915
  // 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
  1916
  // 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
  1917
  // acquired when the RedefineClasses() API has been used.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1918
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1919
  if (jmeths != NULL) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1920
    // the cache already exists
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1921
    if (!idnum_can_increment()) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1922
      // 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
  1923
      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
  1924
    } else {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1925
      // 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
  1926
      if (Threads::number_of_threads() == 0 ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1927
          SafepointSynchronize::is_at_safepoint()) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1928
        // 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
  1929
        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
  1930
      } else {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1931
        MutexLocker ml(JmethodIdCreation_lock);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1932
        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
  1933
      }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1934
    }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1935
  }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1936
  // implied else:
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1937
  // we need to allocate a cache so default length and id values are good
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1938
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1939
  if (jmeths == NULL ||   // no cache yet
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1940
      length <= idnum ||  // cache is too short
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1941
      id == NULL) {       // cache doesn't contain entry
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1942
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1943
    // 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
  1944
    // 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
  1945
    // 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
  1946
    // 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
  1947
    // to free after the lock is dropped.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1948
    jmethodID  to_dealloc_id     = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1949
    jmethodID* to_dealloc_jmeths = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1950
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1951
    // may not allocate new_jmeths or use it if we allocate it
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1952
    jmethodID* new_jmeths = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1953
    if (length <= idnum) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1954
      // allocate a new cache that might be used
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1955
      size_t size = MAX2(idnum+1, (size_t)idnum_allocated_count());
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12587
diff changeset
  1956
      new_jmeths = NEW_C_HEAP_ARRAY(jmethodID, size+1, mtClass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1957
      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
  1958
      // 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
  1959
      new_jmeths[0] = (jmethodID)size;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1960
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1961
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1962
    // allocate a new jmethodID that might be used
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1963
    jmethodID new_id = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1964
    if (method_h->is_old() && !method_h->is_obsolete()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1965
      // The method passed in is old (but not obsolete), we need to use the current version
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1966
      Method* current_method = method_with_idnum((int)idnum);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1967
      assert(current_method != NULL, "old and but not obsolete, so should exist");
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1968
      new_id = Method::make_jmethod_id(class_loader_data(), current_method);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1969
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1970
      // It is the current version of the method or an obsolete method,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1971
      // use the version passed in
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1972
      new_id = Method::make_jmethod_id(class_loader_data(), method_h());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1973
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1974
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1975
    if (Threads::number_of_threads() == 0 ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1976
        SafepointSynchronize::is_at_safepoint()) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1977
      // we're single threaded or at a safepoint - no locking needed
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1978
      id = get_jmethod_id_fetch_or_update(idnum, new_id, new_jmeths,
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1979
                                          &to_dealloc_id, &to_dealloc_jmeths);
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1980
    } else {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1981
      MutexLocker ml(JmethodIdCreation_lock);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1982
      id = get_jmethod_id_fetch_or_update(idnum, new_id, new_jmeths,
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1983
                                          &to_dealloc_id, &to_dealloc_jmeths);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1984
    }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1985
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1986
    // 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
  1987
    // 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
  1988
    if (to_dealloc_jmeths != NULL) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1989
      FreeHeap(to_dealloc_jmeths);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1990
    }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1991
    // 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
  1992
    if (to_dealloc_id != NULL) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1993
      Method::destroy_jmethod_id(class_loader_data(), to_dealloc_id);
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1994
    }
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1995
  }
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1996
  return id;
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1997
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1998
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  1999
// Figure out how many jmethodIDs haven't been allocated, and make
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2000
// sure space for them is pre-allocated.  This makes getting all
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2001
// method ids much, much faster with classes with more than 8
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2002
// methods, and has a *substantial* effect on performance with jvmti
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2003
// code that loads all jmethodIDs for all classes.
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2004
void InstanceKlass::ensure_space_for_methodids(int start_offset) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2005
  int new_jmeths = 0;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2006
  int length = methods()->length();
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2007
  for (int index = start_offset; index < length; index++) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2008
    Method* m = methods()->at(index);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2009
    jmethodID id = m->find_jmethod_id_or_null();
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2010
    if (id == NULL) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2011
      new_jmeths++;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2012
    }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2013
  }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2014
  if (new_jmeths != 0) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2015
    Method::ensure_jmethod_ids(class_loader_data(), new_jmeths);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2016
  }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2017
}
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  2018
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2019
// 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
  2020
// 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
  2021
// 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
  2022
// the VMThread or have cache consistency issues.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2023
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2024
jmethodID InstanceKlass::get_jmethod_id_fetch_or_update(
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2025
            size_t idnum, jmethodID new_id,
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2026
            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
  2027
            jmethodID** to_dealloc_jmeths_p) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2028
  assert(new_id != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2029
  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
  2030
  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
  2031
  assert(Threads::number_of_threads() == 0 ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2032
         SafepointSynchronize::is_at_safepoint() ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2033
         JmethodIdCreation_lock->owned_by_self(), "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2034
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2035
  // reacquire the cache - we are locked, single threaded or at a safepoint
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2036
  jmethodID* jmeths = methods_jmethod_ids_acquire();
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2037
  jmethodID  id     = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2038
  size_t     length = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2039
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2040
  if (jmeths == NULL ||                         // no cache yet
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2041
      (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
  2042
    if (jmeths != NULL) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2043
      // 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
  2044
      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
  2045
        new_jmeths[index+1] = jmeths[index+1];
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2046
      }
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2047
      *to_dealloc_jmeths_p = jmeths;  // save old cache for later delete
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2048
    }
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2049
    release_set_methods_jmethod_ids(jmeths = new_jmeths);
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  2050
  } else {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2051
    // 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
  2052
    id = jmeths[idnum+1];
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2053
    *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
  2054
  }
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  2055
  if (id == NULL) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2056
    // 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
  2057
    // 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
  2058
    // 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
  2059
    // 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
  2060
    id = new_id;
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2061
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2062
    // 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
  2063
    // 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
  2064
    // in the cache.
47634
6a0c42c40cd1 8188220: Remove Atomic::*_ptr() uses and overloads from hotspot
coleenp
parents: 47580
diff changeset
  2065
    OrderAccess::release_store(&jmeths[idnum+1], id);
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  2066
  } else {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2067
    *to_dealloc_id_p = new_id; // save new id for later delete
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2068
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2069
  return id;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2070
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2071
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2072
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2073
// 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
  2074
// 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
  2075
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2076
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
  2077
       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
  2078
  assert(cache != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2079
  assert(length_p != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2080
  assert(id_p != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2081
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2082
  // 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
  2083
  *length_p = (size_t)cache[0];
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2084
  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
  2085
    *id_p = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2086
  } else {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2087
    *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
  2088
  }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2089
}
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2090
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2091
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2092
// 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
  2093
jmethodID InstanceKlass::jmethod_id_or_null(Method* method) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2094
  size_t idnum = (size_t)method->method_idnum();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2095
  jmethodID* jmeths = methods_jmethod_ids_acquire();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2096
  size_t length;                                // length assigned as debugging crumb
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2097
  jmethodID id = NULL;
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2098
  if (jmeths != NULL &&                         // If there is a cache
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2099
      (length = (size_t)jmeths[0]) > idnum) {   // and if it is long enough,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2100
    id = jmeths[idnum+1];                       // Look up the id (may be NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2101
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2102
  return id;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2103
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2104
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2105
inline DependencyContext InstanceKlass::dependencies() {
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2106
  DependencyContext dep_context(&_dep_context);
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2107
  return dep_context;
31037
01a5c5fa5681 8079205: CallSite dependency tracking is broken after sun.misc.Cleaner became automatically cleared
vlivanov
parents: 30227
diff changeset
  2108
}
01a5c5fa5681 8079205: CallSite dependency tracking is broken after sun.misc.Cleaner became automatically cleared
vlivanov
parents: 30227
diff changeset
  2109
36300
5b47f168b948 7177745: JSR292: Many Callsite relinkages cause target method to always run in interpreter mode
vlivanov
parents: 35917
diff changeset
  2110
int InstanceKlass::mark_dependent_nmethods(KlassDepChange& changes) {
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2111
  return dependencies().mark_dependent_nmethods(changes);
25492
d27050bdfb04 8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents: 25491
diff changeset
  2112
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2113
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2114
void InstanceKlass::add_dependent_nmethod(nmethod* nm) {
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2115
  dependencies().add_dependent_nmethod(nm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2116
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2117
33576
6dbde58b08a6 8058563: InstanceKlass::_dependencies list isn't cleared from empty nmethodBucket entries
stefank
parents: 33151
diff changeset
  2118
void InstanceKlass::remove_dependent_nmethod(nmethod* nm, bool delete_immediately) {
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2119
  dependencies().remove_dependent_nmethod(nm, delete_immediately);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2120
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2121
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2122
#ifndef PRODUCT
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2123
void InstanceKlass::print_dependent_nmethods(bool verbose) {
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2124
  dependencies().print_dependent_nmethods(verbose);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2125
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2126
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2127
bool InstanceKlass::is_dependent_nmethod(nmethod* nm) {
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2128
  return dependencies().is_dependent_nmethod(nm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2129
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2130
#endif //PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2131
49821
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2132
void InstanceKlass::clean_weak_instanceklass_links() {
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2133
  clean_implementors_list();
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2134
  clean_method_data();
33576
6dbde58b08a6 8058563: InstanceKlass::_dependencies list isn't cleared from empty nmethodBucket entries
stefank
parents: 33151
diff changeset
  2135
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2136
  // Since GC iterates InstanceKlasses sequentially, it is safe to remove stale entries here.
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2137
  DependencyContext dep_context(&_dep_context);
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2138
  dep_context.expunge_stale_entries();
33576
6dbde58b08a6 8058563: InstanceKlass::_dependencies list isn't cleared from empty nmethodBucket entries
stefank
parents: 33151
diff changeset
  2139
}
6dbde58b08a6 8058563: InstanceKlass::_dependencies list isn't cleared from empty nmethodBucket entries
stefank
parents: 33151
diff changeset
  2140
49821
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2141
void InstanceKlass::clean_implementors_list() {
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2142
  assert(is_loader_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
  2143
  if (is_interface()) {
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2144
    if (ClassUnloading) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2145
      Klass* impl = implementor();
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2146
      if (impl != NULL) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2147
        if (!impl->is_loader_alive()) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2148
          // remove this guy
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2149
          Klass** klass = adr_implementor();
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2150
          assert(klass != NULL, "null klass");
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2151
          if (klass != NULL) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2152
            *klass = NULL;
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2153
          }
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2154
        }
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  2155
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2156
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2157
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2158
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2159
49821
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2160
void InstanceKlass::clean_method_data() {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2161
  for (int m = 0; m < methods()->length(); m++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2162
    MethodData* mdo = methods()->at(m)->method_data();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2163
    if (mdo != NULL) {
49821
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2164
      mdo->clean_method_data(/*always_clean*/false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2165
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2166
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2167
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2168
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2169
bool InstanceKlass::supers_have_passed_fingerprint_checks() {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2170
  if (java_super() != NULL && !java_super()->has_passed_fingerprint_check()) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2171
    ResourceMark rm;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2172
    log_trace(class, fingerprint)("%s : super %s not fingerprinted", external_name(), java_super()->external_name());
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2173
    return false;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2174
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2175
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  2176
  Array<InstanceKlass*>* local_interfaces = this->local_interfaces();
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2177
  if (local_interfaces != NULL) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2178
    int length = local_interfaces->length();
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2179
    for (int i = 0; i < length; i++) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  2180
      InstanceKlass* intf = local_interfaces->at(i);
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2181
      if (!intf->has_passed_fingerprint_check()) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2182
        ResourceMark rm;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2183
        log_trace(class, fingerprint)("%s : interface %s not fingerprinted", external_name(), intf->external_name());
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2184
        return false;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2185
      }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2186
    }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2187
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2188
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2189
  return true;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2190
}
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2191
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2192
bool InstanceKlass::should_store_fingerprint(bool is_unsafe_anonymous) {
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2193
#if INCLUDE_AOT
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2194
  // We store the fingerprint into the InstanceKlass only in the following 2 cases:
46553
7030aea81558 8181823: [AOT] jaotc doesn't work with Graal
kvn
parents: 46505
diff changeset
  2195
  if (CalculateClassFingerprint) {
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2196
    // (1) We are running AOT to generate a shared library.
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2197
    return true;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2198
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2199
  if (DumpSharedSpaces) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2200
    // (2) We are running -Xshare:dump to create a shared archive
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2201
    return true;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2202
  }
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2203
  if (UseAOT && is_unsafe_anonymous) {
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2204
    // (3) We are using AOT code from a shared library and see an unsafe anonymous class
47668
fc4cfca10556 8132547: [AOT] support invokedynamic instructions
dlong
parents: 47634
diff changeset
  2205
    return true;
fc4cfca10556 8132547: [AOT] support invokedynamic instructions
dlong
parents: 47634
diff changeset
  2206
  }
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2207
#endif
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2208
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2209
  // In all other cases we might set the _misc_has_passed_fingerprint_check bit,
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2210
  // but do not store the 64-bit fingerprint to save space.
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2211
  return false;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2212
}
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2213
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2214
bool InstanceKlass::has_stored_fingerprint() const {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2215
#if INCLUDE_AOT
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2216
  return should_store_fingerprint() || is_shared();
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2217
#else
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2218
  return false;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2219
#endif
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2220
}
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2221
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2222
uint64_t InstanceKlass::get_stored_fingerprint() const {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2223
  address adr = adr_fingerprint();
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2224
  if (adr != NULL) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2225
    return (uint64_t)Bytes::get_native_u8(adr); // adr may not be 64-bit aligned
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2226
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2227
  return 0;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2228
}
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2229
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2230
void InstanceKlass::store_fingerprint(uint64_t fingerprint) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2231
  address adr = adr_fingerprint();
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2232
  if (adr != NULL) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2233
    Bytes::put_native_u8(adr, (u8)fingerprint); // adr may not be 64-bit aligned
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2234
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2235
    ResourceMark rm;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2236
    log_trace(class, fingerprint)("stored as " PTR64_FORMAT " for class %s", fingerprint, external_name());
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2237
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2238
}
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2239
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2240
void InstanceKlass::metaspace_pointers_do(MetaspaceClosure* it) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2241
  Klass::metaspace_pointers_do(it);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2242
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2243
  if (log_is_enabled(Trace, cds)) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2244
    ResourceMark rm;
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2245
    log_trace(cds)("Iter(InstanceKlass): %p (%s)", this, external_name());
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2246
  }
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2247
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2248
  it->push(&_annotations);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2249
  it->push((Klass**)&_array_klasses);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2250
  it->push(&_constants);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2251
  it->push(&_inner_classes);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2252
  it->push(&_array_name);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2253
#if INCLUDE_JVMTI
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2254
  it->push(&_previous_versions);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2255
#endif
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2256
  it->push(&_methods);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2257
  it->push(&_default_methods);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2258
  it->push(&_local_interfaces);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2259
  it->push(&_transitive_interfaces);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2260
  it->push(&_method_ordering);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2261
  it->push(&_default_vtable_indices);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2262
  it->push(&_fields);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2263
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2264
  if (itable_length() > 0) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2265
    itableOffsetEntry* ioe = (itableOffsetEntry*)start_of_itable();
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2266
    int method_table_offset_in_words = ioe->offset()/wordSize;
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2267
    int nof_interfaces = (method_table_offset_in_words - itable_offset_in_words())
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2268
                         / itableOffsetEntry::size();
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2269
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2270
    for (int i = 0; i < nof_interfaces; i ++, ioe ++) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2271
      if (ioe->interface_klass() != NULL) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2272
        it->push(ioe->interface_klass_addr());
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2273
        itableMethodEntry* ime = ioe->first_method_entry(this);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2274
        int n = klassItable::method_count_for_interface(ioe->interface_klass());
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2275
        for (int index = 0; index < n; index ++) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2276
          it->push(ime[index].method_addr());
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2277
        }
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2278
      }
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2279
    }
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2280
  }
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2281
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2282
  it->push(&_nest_members);
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2283
}
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2284
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2285
void InstanceKlass::remove_unshareable_info() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2286
  Klass::remove_unshareable_info();
46464
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2287
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2288
  if (is_in_error_state()) {
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2289
    // Classes are attempted to link during dumping and may fail,
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2290
    // but these classes are still in the dictionary and class list in CLD.
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2291
    // Check in_error state first because in_error is > linked state, so
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2292
    // is_linked() is true.
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2293
    // If there's a linking error, there is nothing else to remove.
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2294
    return;
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2295
  }
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2296
51962
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2297
  // Reset to the 'allocated' state to prevent any premature accessing to
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2298
  // a shared class at runtime while the class is still being loaded and
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2299
  // restored. A class' init_state is set to 'loaded' at runtime when it's
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2300
  // being added to class hierarchy (see SystemDictionary:::add_to_hierarchy()).
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2301
  _init_state = allocated;
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2302
51379
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  2303
  {
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  2304
    MutexLocker ml(Compile_lock);
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  2305
    init_implementor();
802f7e5e7e6b 8207924: serviceability/sa/TestUniverse.java#id0 intermittently fails with assert(get_instanceKlass()->is_loaded()) failed: must be at least loaded
coleenp
parents: 51338
diff changeset
  2306
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2307
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2308
  constants()->remove_unshareable_info();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2309
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2310
  for (int i = 0; i < methods()->length(); i++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2311
    Method* m = methods()->at(i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2312
    m->remove_unshareable_info();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2313
  }
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2314
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2315
  // do array classes also.
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2316
  if (array_klasses() != NULL) {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2317
    array_klasses()->remove_unshareable_info();
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2318
  }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2319
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2320
  // These are not allocated from metaspace, but they should should all be empty
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2321
  // during dump time, so we don't need to worry about them in InstanceKlass::iterate().
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2322
  guarantee(_source_debug_extension == NULL, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2323
  guarantee(_dep_context == DependencyContext::EMPTY, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2324
  guarantee(_osr_nmethods_head == NULL, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2325
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2326
#if INCLUDE_JVMTI
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2327
  guarantee(_breakpoints == NULL, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2328
  guarantee(_previous_versions == NULL, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2329
#endif
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2330
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2331
  _init_thread = NULL;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2332
  _methods_jmethod_ids = NULL;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2333
  _jni_ids = NULL;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2334
  _oop_map_cache = NULL;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2335
  // clear _nest_host to ensure re-load at runtime
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2336
  _nest_host = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2337
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2338
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2339
void InstanceKlass::remove_java_mirror() {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2340
  Klass::remove_java_mirror();
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2341
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2342
  // do array classes also.
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2343
  if (array_klasses() != NULL) {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2344
    array_klasses()->remove_java_mirror();
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2345
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2346
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2347
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2348
void InstanceKlass::restore_unshareable_info(ClassLoaderData* loader_data, Handle protection_domain, TRAPS) {
51962
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2349
  // SystemDictionary::add_to_hierarchy() sets the init_state to loaded
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2350
  // before the InstanceKlass is added to the SystemDictionary. Make
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2351
  // sure the current state is <loaded.
628909466216 8210926: vmTestbase/nsk/jvmti/scenarios/allocation/AP11/ap11t001/TestDescription.java failed with JVMTI_ERROR_INVALID_CLASS in CDS mode
jiangli
parents: 51887
diff changeset
  2352
  assert(!is_loaded(), "invalid init state");
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2353
  set_package(loader_data, CHECK);
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2354
  Klass::restore_unshareable_info(loader_data, protection_domain, CHECK);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2355
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2356
  Array<Method*>* methods = this->methods();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2357
  int num_methods = methods->length();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2358
  for (int index2 = 0; index2 < num_methods; ++index2) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2359
    methodHandle m(THREAD, methods->at(index2));
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  2360
    m->restore_unshareable_info(CHECK);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2361
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2362
  if (JvmtiExport::has_redefined_a_class()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2363
    // Reinitialize vtable because RedefineClasses may have changed some
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2364
    // 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
  2365
    // 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
  2366
    // 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
  2367
    // It also redefines the itable too so fix that too.
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
  2368
    vtable().initialize_vtable(false, CHECK);
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
  2369
    itable().initialize_itable(false, CHECK);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2370
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2371
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2372
  // restore constant pool resolved references
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2373
  constants()->restore_unshareable_info(CHECK);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2374
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2375
  if (array_klasses() != NULL) {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2376
    // Array classes have null protection domain.
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2377
    // --> see ArrayKlass::complete_create_array_klass()
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2378
    array_klasses()->restore_unshareable_info(ClassLoaderData::the_null_class_loader_data(), Handle(), CHECK);
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2379
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2380
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2381
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2382
// returns true IFF is_in_error_state() has been changed as a result of this call.
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2383
bool InstanceKlass::check_sharing_error_state() {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2384
  assert(DumpSharedSpaces, "should only be called during dumping");
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2385
  bool old_state = is_in_error_state();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2386
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2387
  if (!is_in_error_state()) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2388
    bool bad = false;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2389
    for (InstanceKlass* sup = java_super(); sup; sup = sup->java_super()) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2390
      if (sup->is_in_error_state()) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2391
        bad = true;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2392
        break;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2393
      }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2394
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2395
    if (!bad) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  2396
      Array<InstanceKlass*>* interfaces = transitive_interfaces();
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2397
      for (int i = 0; i < interfaces->length(); i++) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  2398
        InstanceKlass* iface = interfaces->at(i);
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  2399
        if (iface->is_in_error_state()) {
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2400
          bad = true;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2401
          break;
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2402
        }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2403
      }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2404
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2405
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2406
    if (bad) {
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2407
      set_in_error_state();
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2408
    }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2409
  }
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2410
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2411
  return (old_state != is_in_error_state());
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2412
}
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2413
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  2414
#if INCLUDE_JVMTI
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2415
static void clear_all_breakpoints(Method* m) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2416
  m->clear_all_breakpoints();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2417
}
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  2418
#endif
17075
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2419
51887
32161fbea3fe 8210856: Move InstanceKlass DependencyContext cleaning to SystemDictionary::do_unloading()
coleenp
parents: 51697
diff changeset
  2420
void InstanceKlass::unload_class(InstanceKlass* ik) {
32161fbea3fe 8210856: Move InstanceKlass DependencyContext cleaning to SystemDictionary::do_unloading()
coleenp
parents: 51697
diff changeset
  2421
  // Release dependencies.
32161fbea3fe 8210856: Move InstanceKlass DependencyContext cleaning to SystemDictionary::do_unloading()
coleenp
parents: 51697
diff changeset
  2422
  ik->dependencies().remove_all_dependents();
32161fbea3fe 8210856: Move InstanceKlass DependencyContext cleaning to SystemDictionary::do_unloading()
coleenp
parents: 51697
diff changeset
  2423
17075
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2424
  // notify the debugger
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2425
  if (JvmtiExport::should_post_class_unload()) {
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2426
    JvmtiExport::post_class_unload(ik);
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2427
  }
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2428
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2429
  // notify ClassLoadingService of class unload
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2430
  ClassLoadingService::notify_class_unloaded(ik);
51543
5303c6c05db6 8202578: Revisit location for class unload events
hseigel
parents: 51467
diff changeset
  2431
5303c6c05db6 8202578: Revisit location for class unload events
hseigel
parents: 51467
diff changeset
  2432
#if INCLUDE_JFR
5303c6c05db6 8202578: Revisit location for class unload events
hseigel
parents: 51467
diff changeset
  2433
  assert(ik != NULL, "invariant");
5303c6c05db6 8202578: Revisit location for class unload events
hseigel
parents: 51467
diff changeset
  2434
  EventClassUnload event;
5303c6c05db6 8202578: Revisit location for class unload events
hseigel
parents: 51467
diff changeset
  2435
  event.set_unloadedClass(ik);
5303c6c05db6 8202578: Revisit location for class unload events
hseigel
parents: 51467
diff changeset
  2436
  event.set_definingClassLoader(ik->class_loader_data());
5303c6c05db6 8202578: Revisit location for class unload events
hseigel
parents: 51467
diff changeset
  2437
  event.commit();
5303c6c05db6 8202578: Revisit location for class unload events
hseigel
parents: 51467
diff changeset
  2438
#endif
17075
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2439
}
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2440
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2441
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
  2442
  // Clean up C heap
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2443
  ik->release_C_heap_structures();
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2444
  ik->constants()->release_C_heap_structures();
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2445
}
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2446
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2447
void InstanceKlass::release_C_heap_structures() {
17075
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2448
  // 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
  2449
  // 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
  2450
  // redefine classes.
b53332c50aba 8011803: release_C_heap_structures is never called for anonymous classes.
coleenp
parents: 17029
diff changeset
  2451
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2452
  // Deallocate oop map cache
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2453
  if (_oop_map_cache != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2454
    delete _oop_map_cache;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2455
    _oop_map_cache = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2456
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2457
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2458
  // Deallocate JNI identifiers for jfieldIDs
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2459
  JNIid::deallocate(jni_ids());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2460
  set_jni_ids(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2461
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2462
  jmethodID* jmeths = methods_jmethod_ids_acquire();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2463
  if (jmeths != (jmethodID*)NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2464
    release_set_methods_jmethod_ids(NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2465
    FreeHeap(jmeths);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2466
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2467
51887
32161fbea3fe 8210856: Move InstanceKlass DependencyContext cleaning to SystemDictionary::do_unloading()
coleenp
parents: 51697
diff changeset
  2468
  assert(_dep_context == DependencyContext::EMPTY,
32161fbea3fe 8210856: Move InstanceKlass DependencyContext cleaning to SystemDictionary::do_unloading()
coleenp
parents: 51697
diff changeset
  2469
         "dependencies should already be cleaned");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2470
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  2471
#if INCLUDE_JVMTI
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2472
  // Deallocate breakpoint records
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2473
  if (breakpoints() != 0x0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2474
    methods_do(clear_all_breakpoints);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2475
    assert(breakpoints() == 0x0, "should have cleared breakpoints");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2476
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2477
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2478
  // deallocate the cached class file
48794
ea0d0781c63c 8178351: Simplify MetaspaceShared::is_in_shared_space and MetaspaceObj::is_shared
iklam
parents: 48619
diff changeset
  2479
  if (_cached_class_file != NULL && !MetaspaceShared::is_in_shared_metaspace(_cached_class_file)) {
27880
afb974a04396 8060074: os::free() takes MemoryTrackingLevel but doesn't need it
coleenp
parents: 27674
diff changeset
  2480
    os::free(_cached_class_file);
18940
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  2481
    _cached_class_file = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2482
  }
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  2483
#endif
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2484
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2485
  // 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
  2486
  if (_name != NULL) _name->decrement_refcount();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2487
  // 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
  2488
  // class can't be referenced anymore).
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2489
  if (_array_name != NULL)  _array_name->decrement_refcount();
27880
afb974a04396 8060074: os::free() takes MemoryTrackingLevel but doesn't need it
coleenp
parents: 27674
diff changeset
  2490
  if (_source_debug_extension != NULL) FREE_C_HEAP_ARRAY(char, _source_debug_extension);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2491
}
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  2492
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2493
void InstanceKlass::set_source_debug_extension(const char* array, int length) {
13201
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2494
  if (array == NULL) {
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2495
    _source_debug_extension = NULL;
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2496
  } else {
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2497
    // 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
  2498
    // 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
  2499
    // 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
  2500
    // unlikely to happen.
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2501
    assert((length+1) > length, "Overflow checking");
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2502
    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
  2503
    for (int i = 0; i < length; i++) {
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2504
      sde[i] = array[i];
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2505
    }
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2506
    sde[length] = '\0';
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2507
    _source_debug_extension = sde;
69f157caabcc 6294277: java -Xdebug crashes on SourceDebugExtension attribute larger than 64K
fparain
parents: 13195
diff changeset
  2508
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2509
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2510
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2511
const char* InstanceKlass::signature_name() const {
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2512
  int hash_len = 0;
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2513
  char hash_buf[40];
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2514
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2515
  // If this is an unsafe anonymous class, append a hash to make the name unique
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2516
  if (is_unsafe_anonymous()) {
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2517
    intptr_t hash = (java_mirror() != NULL) ? java_mirror()->identity_hash() : 0;
27471
6e56277909f1 8062370: Various minor code improvements
goetz
parents: 27435
diff changeset
  2518
    jio_snprintf(hash_buf, sizeof(hash_buf), "/" UINTX_FORMAT, (uintx)hash);
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2519
    hash_len = (int)strlen(hash_buf);
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2520
  }
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2521
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2522
  // Get the internal name as a c string
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2523
  const char* src = (const char*) (name()->as_C_string());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2524
  const int src_length = (int)strlen(src);
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2525
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2526
  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
  2527
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2528
  // Add L as type indicator
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2529
  int dest_index = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2530
  dest[dest_index++] = 'L';
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2531
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2532
  // Add the actual class name
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2533
  for (int src_index = 0; src_index < src_length; ) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2534
    dest[dest_index++] = src[src_index++];
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2535
  }
21183
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2536
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2537
  // If we have a hash, append it
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2538
  for (int hash_index = 0; hash_index < hash_len; ) {
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2539
    dest[dest_index++] = hash_buf[hash_index++];
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2540
  }
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2541
e148e499e5cd 8024423: JVMTI: GetLoadedClasses doesn't enumerate anonymous classes
farvidsson
parents: 21079
diff changeset
  2542
  // Add the semicolon and the NULL
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2543
  dest[dest_index++] = ';';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2544
  dest[dest_index] = '\0';
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2545
  return dest;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2546
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2547
39216
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2548
// Used to obtain the package name from a fully qualified class name.
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2549
Symbol* InstanceKlass::package_from_name(const Symbol* name, TRAPS) {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2550
  if (name == NULL) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2551
    return NULL;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2552
  } else {
39216
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2553
    if (name->utf8_length() <= 0) {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2554
      return NULL;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2555
    }
39216
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2556
    ResourceMark rm;
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2557
    const char* package_name = ClassLoader::package_from_name((const char*) name->as_C_string());
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2558
    if (package_name == NULL) {
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2559
      return NULL;
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2560
    }
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2561
    Symbol* pkg_name = SymbolTable::new_symbol(package_name, THREAD);
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2562
    return pkg_name;
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2563
  }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2564
}
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2565
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2566
ModuleEntry* InstanceKlass::module() const {
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2567
  // For an unsafe anonymous class return the host class' module
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2568
  if (is_unsafe_anonymous()) {
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2569
    assert(unsafe_anonymous_host() != NULL, "unsafe anonymous class must have a host class");
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2570
    return unsafe_anonymous_host()->module();
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2571
  }
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2572
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2573
  // Class is in a named package
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2574
  if (!in_unnamed_package()) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2575
    return _package_entry->module();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2576
  }
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2577
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2578
  // Class is in an unnamed package, return its loader's unnamed module
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2579
  return class_loader_data()->unnamed_module();
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2580
}
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2581
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2582
void InstanceKlass::set_package(ClassLoaderData* loader_data, TRAPS) {
40016
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2583
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2584
  // ensure java/ packages only loaded by boot or platform builtin loaders
50634
c349d409262a 8202605: Standardize on ClassLoaderData::loader_name() throughout the VM to obtain a class loader's name
lfoltan
parents: 50633
diff changeset
  2585
  check_prohibited_package(name(), loader_data, CHECK);
40016
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2586
39216
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2587
  TempNewSymbol pkg_name = package_from_name(name(), CHECK);
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2588
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2589
  if (pkg_name != NULL && loader_data != NULL) {
40016
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2590
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2591
    // Find in class loader's package entry table.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2592
    _package_entry = loader_data->packages()->lookup_only(pkg_name);
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2593
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2594
    // If the package name is not found in the loader's package
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2595
    // entry table, it is an indication that the package has not
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2596
    // been defined. Consider it defined within the unnamed module.
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2597
    if (_package_entry == NULL) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2598
      ResourceMark rm;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2599
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2600
      if (!ModuleEntryTable::javabase_defined()) {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2601
        // Before java.base is defined during bootstrapping, define all packages in
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2602
        // the java.base module.  If a non-java.base package is erroneously placed
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2603
        // in the java.base module it will be caught later when java.base
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2604
        // is defined by ModuleEntryTable::verify_javabase_packages check.
42636
aafc434ba580 8169734: Update uses of string "java.base" to macro
rprotacio
parents: 42031
diff changeset
  2605
        assert(ModuleEntryTable::javabase_moduleEntry() != NULL, JAVA_BASE_NAME " module is NULL");
41183
207b92e69457 8163406: The fixup_module_list must be protected by Module_lock when inserting new entries
lfoltan
parents: 41182
diff changeset
  2606
        _package_entry = loader_data->packages()->lookup(pkg_name, ModuleEntryTable::javabase_moduleEntry());
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2607
      } else {
46387
c46632622b17 8176472: Lazily create ModuleEntryTable
rprotacio
parents: 46369
diff changeset
  2608
        assert(loader_data->unnamed_module() != NULL, "unnamed module is NULL");
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2609
        _package_entry = loader_data->packages()->lookup(pkg_name,
46387
c46632622b17 8176472: Lazily create ModuleEntryTable
rprotacio
parents: 46369
diff changeset
  2610
                                                         loader_data->unnamed_module());
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2611
      }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2612
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2613
      // A package should have been successfully created
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2614
      assert(_package_entry != NULL, "Package entry for class %s not found, loader %s",
50634
c349d409262a 8202605: Standardize on ClassLoaderData::loader_name() throughout the VM to obtain a class loader's name
lfoltan
parents: 50633
diff changeset
  2615
             name()->as_C_string(), loader_data->loader_name_and_id());
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2616
    }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2617
44993
f61bcd80ec1f 8178380: Module system implementation refresh (5/2017)
alanb
parents: 44326
diff changeset
  2618
    if (log_is_enabled(Debug, module)) {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2619
      ResourceMark rm;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2620
      ModuleEntry* m = _package_entry->module();
44993
f61bcd80ec1f 8178380: Module system implementation refresh (5/2017)
alanb
parents: 44326
diff changeset
  2621
      log_trace(module)("Setting package: class: %s, package: %s, loader: %s, module: %s",
f61bcd80ec1f 8178380: Module system implementation refresh (5/2017)
alanb
parents: 44326
diff changeset
  2622
                        external_name(),
f61bcd80ec1f 8178380: Module system implementation refresh (5/2017)
alanb
parents: 44326
diff changeset
  2623
                        pkg_name->as_C_string(),
50634
c349d409262a 8202605: Standardize on ClassLoaderData::loader_name() throughout the VM to obtain a class loader's name
lfoltan
parents: 50633
diff changeset
  2624
                        loader_data->loader_name_and_id(),
44993
f61bcd80ec1f 8178380: Module system implementation refresh (5/2017)
alanb
parents: 44326
diff changeset
  2625
                        (m->is_named() ? m->name()->as_C_string() : UNNAMED_MODULE));
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2626
    }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2627
  } else {
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2628
    ResourceMark rm;
44993
f61bcd80ec1f 8178380: Module system implementation refresh (5/2017)
alanb
parents: 44326
diff changeset
  2629
    log_trace(module)("Setting package: class: %s, package: unnamed, loader: %s, module: %s",
f61bcd80ec1f 8178380: Module system implementation refresh (5/2017)
alanb
parents: 44326
diff changeset
  2630
                      external_name(),
50634
c349d409262a 8202605: Standardize on ClassLoaderData::loader_name() throughout the VM to obtain a class loader's name
lfoltan
parents: 50633
diff changeset
  2631
                      (loader_data != NULL) ? loader_data->loader_name_and_id() : "NULL",
44993
f61bcd80ec1f 8178380: Module system implementation refresh (5/2017)
alanb
parents: 44326
diff changeset
  2632
                      UNNAMED_MODULE);
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2633
  }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2634
}
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2635
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2636
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2637
// different versions of is_same_class_package
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2638
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2639
bool InstanceKlass::is_same_class_package(const Klass* class2) const {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2640
  oop classloader1 = this->class_loader();
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2641
  PackageEntry* classpkg1 = this->package();
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33602
diff changeset
  2642
  if (class2->is_objArray_klass()) {
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13738
diff changeset
  2643
    class2 = ObjArrayKlass::cast(class2)->bottom_klass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2644
  }
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2645
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2646
  oop classloader2;
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2647
  PackageEntry* classpkg2;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2648
  if (class2->is_instance_klass()) {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2649
    classloader2 = class2->class_loader();
38094
46977cd73d86 8152844: JVM InstanceKlass Methods For Obtaining Package/Module Should Be Moved to Klass
rprotacio
parents: 38059
diff changeset
  2650
    classpkg2 = class2->package();
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2651
  } else {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2652
    assert(class2->is_typeArray_klass(), "should be type array");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2653
    classloader2 = NULL;
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2654
    classpkg2 = NULL;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2655
  }
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2656
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2657
  // Same package is determined by comparing class loader
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2658
  // and package entries. Both must be the same. This rule
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2659
  // applies even to classes that are defined in the unnamed
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2660
  // package, they still must have the same class loader.
49658
8237a91c1cca 8199781: Don't use naked == for comparing oops
rkennke
parents: 49592
diff changeset
  2661
  if (oopDesc::equals(classloader1, classloader2) && (classpkg1 == classpkg2)) {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2662
    return true;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2663
  }
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2664
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2665
  return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2666
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2667
46697
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2668
// return true if this class and other_class are in the same package. Classloader
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2669
// and classname information is enough to determine a class's package
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2670
bool InstanceKlass::is_same_class_package(oop other_class_loader,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2671
                                          const Symbol* other_class_name) const {
49658
8237a91c1cca 8199781: Don't use naked == for comparing oops
rkennke
parents: 49592
diff changeset
  2672
  if (!oopDesc::equals(class_loader(), other_class_loader)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2673
    return false;
46697
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2674
  }
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2675
  if (name()->fast_compare(other_class_name) == 0) {
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2676
     return true;
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2677
  }
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2678
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2679
  {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2680
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2681
39216
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2682
    bool bad_class_name = false;
46697
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2683
    const char* other_pkg =
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2684
      ClassLoader::package_from_name((const char*) other_class_name->as_C_string(), &bad_class_name);
39216
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2685
    if (bad_class_name) {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2686
      return false;
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2687
    }
46697
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2688
    // Check that package_from_name() returns NULL, not "", if there is no package.
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2689
    assert(other_pkg == NULL || strlen(other_pkg) > 0, "package name is empty string");
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2690
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2691
    const Symbol* const this_package_name =
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2692
      this->package() != NULL ? this->package()->name() : NULL;
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2693
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2694
    if (this_package_name == NULL || other_pkg == NULL) {
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2695
      // One of the two doesn't have a package.  Only return true if the other
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2696
      // one also doesn't have a package.
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2697
      return (const char*)this_package_name == other_pkg;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2698
    }
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  2699
46697
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2700
    // Check if package is identical
2fdbdc5e0765 8077203: Avoid unnecessary stripping of package names from FQN's in is_same_class_package() methods
hseigel
parents: 46630
diff changeset
  2701
    return this_package_name->equals(other_pkg);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2702
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2703
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2704
2264
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2705
// Returns true iff super_method can be overridden by a method in targetclassname
39216
40c3d66352ae 8153858: Clean up needed when obtaining the package name from a fully qualified class name
rprotacio
parents: 38937
diff changeset
  2706
// See JLS 3rd edition 8.4.6.1
2264
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2707
// Assumes name-signature match
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2708
// "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
  2709
// note that the InstanceKlass of the method in the targetclassname has not always been created yet
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33576
diff changeset
  2710
bool InstanceKlass::is_override(const methodHandle& super_method, Handle targetclassloader, Symbol* targetclassname, TRAPS) {
2264
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2711
   // Private methods can not be overridden
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2712
   if (super_method->is_private()) {
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2713
     return false;
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2714
   }
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2715
   // If super method is accessible, then override
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2716
   if ((super_method->is_protected()) ||
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2717
       (super_method->is_public())) {
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2718
     return true;
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2719
   }
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2720
   // Package-private methods are not inherited outside of package
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2721
   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
  2722
   return(is_same_class_package(targetclassloader(), targetclassname));
2264
55d0115a54fe 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 2131
diff changeset
  2723
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2724
40016
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2725
// Only boot and platform class loaders can define classes in "java/" packages.
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2726
void InstanceKlass::check_prohibited_package(Symbol* class_name,
50634
c349d409262a 8202605: Standardize on ClassLoaderData::loader_name() throughout the VM to obtain a class loader's name
lfoltan
parents: 50633
diff changeset
  2727
                                             ClassLoaderData* loader_data,
42307
cefc81dc1d52 8169069: Module system implementation refresh (11/2016)
alanb
parents: 42031
diff changeset
  2728
                                             TRAPS) {
50634
c349d409262a 8202605: Standardize on ClassLoaderData::loader_name() throughout the VM to obtain a class loader's name
lfoltan
parents: 50633
diff changeset
  2729
  if (!loader_data->is_boot_class_loader_data() &&
c349d409262a 8202605: Standardize on ClassLoaderData::loader_name() throughout the VM to obtain a class loader's name
lfoltan
parents: 50633
diff changeset
  2730
      !loader_data->is_platform_class_loader_data() &&
44326
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2731
      class_name != NULL) {
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2732
    ResourceMark rm(THREAD);
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2733
    char* name = class_name->as_C_string();
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2734
    if (strncmp(name, JAVAPKG, JAVAPKG_LEN) == 0 && name[JAVAPKG_LEN] == '/') {
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2735
      TempNewSymbol pkg_name = InstanceKlass::package_from_name(class_name, CHECK);
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2736
      assert(pkg_name != NULL, "Error in parsing package name starting with 'java/'");
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2737
      name = pkg_name->as_C_string();
50634
c349d409262a 8202605: Standardize on ClassLoaderData::loader_name() throughout the VM to obtain a class loader's name
lfoltan
parents: 50633
diff changeset
  2738
      const char* class_loader_name = loader_data->loader_name_and_id();
44326
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2739
      StringUtils::replace_no_expand(name, "/", ".");
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2740
      const char* msg_text1 = "Class loader (instance of): ";
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2741
      const char* msg_text2 = " tried to load prohibited package name: ";
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2742
      size_t len = strlen(msg_text1) + strlen(class_loader_name) + strlen(msg_text2) + strlen(name) + 1;
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2743
      char* message = NEW_RESOURCE_ARRAY_IN_THREAD(THREAD, char, len);
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2744
      jio_snprintf(message, len, "%s%s%s%s", msg_text1, class_loader_name, msg_text2, name);
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2745
      THROW_MSG(vmSymbols::java_lang_SecurityException(), message);
6c59cca7ff07 8174823: Module system implementation refresh (3/2017)
alanb
parents: 43929
diff changeset
  2746
    }
40016
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2747
  }
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2748
  return;
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2749
}
bf6fcd467a7b 8162340: Better class stream parsing
acorn
parents: 39714
diff changeset
  2750
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2751
bool InstanceKlass::find_inner_classes_attr(int* ooff, int* noff, TRAPS) const {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2752
  constantPoolHandle i_cp(THREAD, constants());
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2753
  for (InnerClassesIterator iter(this); !iter.done(); iter.next()) {
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2754
    int ioff = iter.inner_class_info_index();
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2755
    if (ioff != 0) {
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2756
      // Check to see if the name matches the class we're looking for
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2757
      // before attempting to find the class.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2758
      if (i_cp->klass_name_at_matches(this, ioff)) {
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2759
        Klass* inner_klass = i_cp->klass_at(ioff, CHECK_false);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2760
        if (this == inner_klass) {
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2761
          *ooff = iter.outer_class_info_index();
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2762
          *noff = iter.inner_name_index();
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2763
          return true;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2764
        }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2765
      }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2766
    }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2767
  }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2768
  return false;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2769
}
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2770
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2771
InstanceKlass* InstanceKlass::compute_enclosing_class(bool* inner_is_member, TRAPS) const {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2772
  InstanceKlass* outer_klass = NULL;
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2773
  *inner_is_member = false;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2774
  int ooff = 0, noff = 0;
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2775
  bool has_inner_classes_attr = find_inner_classes_attr(&ooff, &noff, THREAD);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2776
  if (has_inner_classes_attr) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2777
    constantPoolHandle i_cp(THREAD, constants());
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2778
    if (ooff != 0) {
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2779
      Klass* ok = i_cp->klass_at(ooff, CHECK_NULL);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2780
      outer_klass = InstanceKlass::cast(ok);
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2781
      *inner_is_member = true;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2782
    }
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2783
    if (NULL == outer_klass) {
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2784
      // It may be unsafe anonymous; try for that.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2785
      int encl_method_class_idx = enclosing_method_class_index();
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2786
      if (encl_method_class_idx != 0) {
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2787
        Klass* ok = i_cp->klass_at(encl_method_class_idx, CHECK_NULL);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2788
        outer_klass = InstanceKlass::cast(ok);
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2789
        *inner_is_member = false;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2790
      }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2791
    }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2792
  }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2793
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2794
  // If no inner class attribute found for this class.
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2795
  if (NULL == outer_klass) return NULL;
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2796
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2797
  // Throws an exception if outer klass has not declared k as an inner klass
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2798
  // We need evidence that each klass knows about the other, or else
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2799
  // the system could allow a spoof of an inner class to gain access rights.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2800
  Reflection::check_for_inner_class(outer_klass, this, *inner_is_member, CHECK_NULL);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2801
  return outer_klass;
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2802
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2803
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2804
jint InstanceKlass::compute_modifier_flags(TRAPS) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2805
  jint access = access_flags().as_int();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2806
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2807
  // But check if it happens to be member class.
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2808
  InnerClassesIterator iter(this);
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2809
  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
  2810
    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
  2811
    // 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
  2812
    // 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
  2813
    if (ioff == 0) continue;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2814
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2815
    // 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
  2816
    // since we are looking for the flags for our self.
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2817
    Symbol* inner_name = constants()->klass_name_at(ioff);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2818
    if (name() == inner_name) {
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2819
      // 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
  2820
      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
  2821
      break;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2822
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2823
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2824
  // Remember to strip ACC_SUPER bit
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2825
  return (access & (~JVM_ACC_SUPER)) & JVM_ACC_WRITTEN_FLAGS;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2826
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2827
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2828
jint InstanceKlass::jvmti_class_status() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2829
  jint result = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2830
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2831
  if (is_linked()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2832
    result |= JVMTI_CLASS_STATUS_VERIFIED | JVMTI_CLASS_STATUS_PREPARED;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2833
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2834
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2835
  if (is_initialized()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2836
    assert(is_linked(), "Class status is not consistent");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2837
    result |= JVMTI_CLASS_STATUS_INITIALIZED;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2838
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2839
  if (is_in_error_state()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2840
    result |= JVMTI_CLASS_STATUS_ERROR;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2841
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2842
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2843
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2844
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2845
Method* InstanceKlass::method_at_itable(Klass* holder, int index, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2846
  itableOffsetEntry* ioe = (itableOffsetEntry*)start_of_itable();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2847
  int method_table_offset_in_words = ioe->offset()/wordSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2848
  int nof_interfaces = (method_table_offset_in_words - itable_offset_in_words())
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2849
                       / itableOffsetEntry::size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2850
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2851
  for (int cnt = 0 ; ; cnt ++, ioe ++) {
2131
98f9cef66a34 6810672: Comment typos
twisti
parents: 1388
diff changeset
  2852
    // If the interface isn't implemented by the receiver class,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2853
    // the VM should throw IncompatibleClassChangeError.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2854
    if (cnt >= nof_interfaces) {
50633
b8055b38b252 8204268: Improve some IncompatibleClassChangeError messages.
goetz
parents: 50429
diff changeset
  2855
      ResourceMark rm(THREAD);
b8055b38b252 8204268: Improve some IncompatibleClassChangeError messages.
goetz
parents: 50429
diff changeset
  2856
      stringStream ss;
50761
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2857
      bool same_module = (module() == holder->module());
50633
b8055b38b252 8204268: Improve some IncompatibleClassChangeError messages.
goetz
parents: 50429
diff changeset
  2858
      ss.print("Receiver class %s does not implement "
50761
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2859
               "the interface %s defining the method to be called "
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2860
               "(%s%s%s)",
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2861
               external_name(), holder->external_name(),
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2862
               (same_module) ? joint_in_module_of_loader(holder) : class_in_module_of_loader(),
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2863
               (same_module) ? "" : "; ",
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2864
               (same_module) ? "" : holder->class_in_module_of_loader());
50633
b8055b38b252 8204268: Improve some IncompatibleClassChangeError messages.
goetz
parents: 50429
diff changeset
  2865
      THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), ss.as_string());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2866
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2867
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2868
    Klass* ik = ioe->interface_klass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2869
    if (ik == holder) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2870
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2871
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2872
  itableMethodEntry* ime = ioe->first_method_entry(this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2873
  Method* m = ime[index].method();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2874
  if (m == NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2875
    THROW_NULL(vmSymbols::java_lang_AbstractMethodError());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2876
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2877
  return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2878
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2879
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2880
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2881
#if INCLUDE_JVMTI
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2882
// update default_methods for redefineclasses for methods that are
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2883
// 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
  2884
// redefinition
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2885
// Note: those in the vtable, should have been updated via adjust_method_entries
29316
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2886
void InstanceKlass::adjust_default_methods(InstanceKlass* holder, bool* trace_name_printed) {
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2887
  // 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
  2888
  if (default_methods() != NULL) {
29316
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2889
    for (int index = 0; index < default_methods()->length(); index ++) {
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2890
      Method* old_method = default_methods()->at(index);
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2891
      if (old_method == NULL || old_method->method_holder() != holder || !old_method->is_old()) {
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2892
        continue; // skip uninteresting entries
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2893
      }
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2894
      assert(!old_method->is_deleted(), "default methods may not be deleted");
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2895
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2896
      Method* new_method = holder->method_with_idnum(old_method->orig_method_idnum());
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2897
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2898
      assert(new_method != NULL, "method_with_idnum() should not be NULL");
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2899
      assert(old_method != new_method, "sanity check");
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2900
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2901
      default_methods()->at_put(index, new_method);
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2902
      if (log_is_enabled(Info, redefine, class, update)) {
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2903
        ResourceMark rm;
29316
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2904
        if (!(*trace_name_printed)) {
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2905
          log_info(redefine, class, update)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2906
            ("adjust: klassname=%s default methods from name=%s",
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2907
             external_name(), old_method->method_holder()->external_name());
29316
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2908
          *trace_name_printed = true;
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2909
        }
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2910
        log_debug(redefine, class, update, vtables)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2911
          ("default method update: %s(%s) ",
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2912
           new_method->name()->as_C_string(), new_method->signature()->as_C_string());
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2913
      }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2914
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2915
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2916
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2917
#endif // INCLUDE_JVMTI
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2918
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2919
// On-stack replacement stuff
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2920
void InstanceKlass::add_osr_nmethod(nmethod* n) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2921
  // only one compilation can be active
27409
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2922
  {
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2923
    // This is a short non-blocking critical region, so the no safepoint check is ok.
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2924
    MutexLockerEx ml(OsrList_lock, Mutex::_no_safepoint_check_flag);
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2925
    assert(n->is_osr_method(), "wrong kind of nmethod");
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2926
    n->set_osr_link(osr_nmethods_head());
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2927
    set_osr_nmethods_head(n);
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2928
    // Raise the highest osr level if necessary
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2929
    if (TieredCompilation) {
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2930
      Method* m = n->method();
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2931
      m->set_highest_osr_comp_level(MAX2(m->highest_osr_comp_level(), n->comp_level()));
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2932
    }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2933
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2934
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2935
  // Get rid of the osr methods for the same bci that have lower levels.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2936
  if (TieredCompilation) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2937
    for (int l = CompLevel_limited_profile; l < n->comp_level(); l++) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2938
      nmethod *inv = lookup_osr_nmethod(n->method(), n->osr_entry_bci(), l, true);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2939
      if (inv != NULL && inv->is_in_use()) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2940
        inv->make_not_entrant();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2941
      }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2942
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2943
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2944
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2945
36802
18b1db5a7e70 8023191: OSR nmethods should be flushed to free space in CodeCache
thartmann
parents: 36300
diff changeset
  2946
// Remove osr nmethod from the list. Return true if found and removed.
18b1db5a7e70 8023191: OSR nmethods should be flushed to free space in CodeCache
thartmann
parents: 36300
diff changeset
  2947
bool InstanceKlass::remove_osr_nmethod(nmethod* n) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2948
  // This is a short non-blocking critical region, so the no safepoint check is ok.
27409
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2949
  MutexLockerEx ml(OsrList_lock, Mutex::_no_safepoint_check_flag);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2950
  assert(n->is_osr_method(), "wrong kind of nmethod");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2951
  nmethod* last = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2952
  nmethod* cur  = osr_nmethods_head();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2953
  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
  2954
  Method* m = n->method();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2955
  // Search for match
36802
18b1db5a7e70 8023191: OSR nmethods should be flushed to free space in CodeCache
thartmann
parents: 36300
diff changeset
  2956
  bool found = false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2957
  while(cur != NULL && cur != n) {
22920
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  2958
    if (TieredCompilation && m == cur->method()) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2959
      // Find max level before n
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2960
      max_level = MAX2(max_level, cur->comp_level());
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2961
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2962
    last = cur;
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  2963
    cur = cur->osr_link();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2964
  }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2965
  nmethod* next = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2966
  if (cur == n) {
36802
18b1db5a7e70 8023191: OSR nmethods should be flushed to free space in CodeCache
thartmann
parents: 36300
diff changeset
  2967
    found = true;
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2968
    next = cur->osr_link();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2969
    if (last == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2970
      // Remove first element
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2971
      set_osr_nmethods_head(next);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2972
    } else {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2973
      last->set_osr_link(next);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2974
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2975
  }
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  2976
  n->set_osr_link(NULL);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2977
  if (TieredCompilation) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2978
    cur = next;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2979
    while (cur != NULL) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2980
      // Find max level after n
22920
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  2981
      if (m == cur->method()) {
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  2982
        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
  2983
      }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2984
      cur = cur->osr_link();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2985
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2986
    m->set_highest_osr_comp_level(max_level);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2987
  }
36802
18b1db5a7e70 8023191: OSR nmethods should be flushed to free space in CodeCache
thartmann
parents: 36300
diff changeset
  2988
  return found;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2989
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2990
27434
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  2991
int InstanceKlass::mark_osr_nmethods(const Method* m) {
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  2992
  // This is a short non-blocking critical region, so the no safepoint check is ok.
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  2993
  MutexLockerEx ml(OsrList_lock, Mutex::_no_safepoint_check_flag);
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  2994
  nmethod* osr = osr_nmethods_head();
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  2995
  int found = 0;
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  2996
  while (osr != NULL) {
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  2997
    assert(osr->is_osr_method(), "wrong kind of nmethod found in chain");
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  2998
    if (osr->method() == m) {
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  2999
      osr->mark_for_deoptimization();
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3000
      found++;
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3001
    }
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3002
    osr = osr->osr_link();
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3003
  }
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3004
  return found;
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3005
}
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3006
17370
59a0620561fa 8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents: 17078
diff changeset
  3007
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
  3008
  // This is a short non-blocking critical region, so the no safepoint check is ok.
27409
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  3009
  MutexLockerEx ml(OsrList_lock, Mutex::_no_safepoint_check_flag);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3010
  nmethod* osr = osr_nmethods_head();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3011
  nmethod* best = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3012
  while (osr != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3013
    assert(osr->is_osr_method(), "wrong kind of nmethod found in chain");
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3014
    // There can be a time when a c1 osr method exists but we are waiting
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3015
    // for a c2 version. When c2 completes its osr nmethod we will trash
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3016
    // the c1 version and only be able to find the c2 version. However
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3017
    // while we overflow in the c1 code at back branches we don't want to
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3018
    // try and switch to the same code as we are already running
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3019
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3020
    if (osr->method() == m &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3021
        (bci == InvocationEntryBci || osr->osr_entry_bci() == bci)) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3022
      if (match_level) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3023
        if (osr->comp_level() == comp_level) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3024
          // Found a match - return it.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3025
          return osr;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3026
        }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3027
      } else {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3028
        if (best == NULL || (osr->comp_level() > best->comp_level())) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3029
          if (osr->comp_level() == CompLevel_highest_tier) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3030
            // Found the best possible - return it.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3031
            return osr;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3032
          }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3033
          best = osr;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3034
        }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3035
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3036
    }
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  3037
    osr = osr->osr_link();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3038
  }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3039
  if (best != NULL && best->comp_level() >= comp_level && match_level == false) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3040
    return best;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3041
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3042
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3043
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3044
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3045
// -----------------------------------------------------------------------------------------------------
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3046
// Printing
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3047
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3048
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3049
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3050
#define BULLET  " - "
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3051
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3052
static const char* state_names[] = {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3053
  "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
  3054
};
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3055
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3056
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
  3057
  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
  3058
    intptr_t e = start[i];
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3059
    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
  3060
    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
  3061
      st->print(" ");
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3062
      ((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
  3063
    }
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3064
    st->cr();
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3065
  }
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3066
}
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3067
35900
d64cf9290fc4 8148481: Devirtualize Klass::vtable
mgerdin
parents: 35899
diff changeset
  3068
static void print_vtable(vtableEntry* start, int len, outputStream* st) {
d64cf9290fc4 8148481: Devirtualize Klass::vtable
mgerdin
parents: 35899
diff changeset
  3069
  return print_vtable(reinterpret_cast<intptr_t*>(start), len, st);
d64cf9290fc4 8148481: Devirtualize Klass::vtable
mgerdin
parents: 35899
diff changeset
  3070
}
d64cf9290fc4 8148481: Devirtualize Klass::vtable
mgerdin
parents: 35899
diff changeset
  3071
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3072
void InstanceKlass::print_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3073
  assert(is_klass(), "must be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3074
  Klass::print_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3075
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3076
  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
  3077
  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
  3078
  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
  3079
  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
  3080
  st->print(BULLET"name:              "); name()->print_value_on(st);             st->cr();
51265
8329bfbe1b30 8208399: Metadata methods print_(value_)on_maybe_null() compare 'this' to NULL
hseigel
parents: 51096
diff changeset
  3081
  st->print(BULLET"super:             "); Metadata::print_value_on_maybe_null(st, super()); st->cr();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3082
  st->print(BULLET"sub:               ");
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3083
  Klass* sub = subklass();
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3084
  int n;
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3085
  for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3086
    if (n < MaxSubklassPrintSize) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3087
      sub->print_value_on(st);
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3088
      st->print("   ");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3089
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3090
  }
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3091
  if (n >= MaxSubklassPrintSize) st->print("(" INTX_FORMAT " more klasses...)", n - MaxSubklassPrintSize);
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3092
  st->cr();
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3093
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3094
  if (is_interface()) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3095
    MutexLocker ml(Compile_lock);
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3096
    st->print_cr(BULLET"nof implementors:  %d", nof_implementors());
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3097
    if (nof_implementors() == 1) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3098
      st->print_cr(BULLET"implementor:    ");
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3099
      st->print("   ");
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3100
      implementor()->print_value_on(st);
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3101
      st->cr();
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3102
    }
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3103
  }
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3104
51265
8329bfbe1b30 8208399: Metadata methods print_(value_)on_maybe_null() compare 'this' to NULL
hseigel
parents: 51096
diff changeset
  3105
  st->print(BULLET"arrays:            "); Metadata::print_value_on_maybe_null(st, array_klasses()); st->cr();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3106
  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
  3107
  if (Verbose || WizardMode) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3108
    Array<Method*>* method_array = methods();
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3109
    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
  3110
      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
  3111
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3112
  }
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3113
  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
  3114
  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
  3115
  if (Verbose && default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3116
    Array<Method*>* method_array = default_methods();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3117
    for (int i = 0; i < method_array->length(); i++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3118
      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
  3119
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3120
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3121
  if (default_vtable_indices() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3122
    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
  3123
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3124
  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
  3125
  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
  3126
  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
  3127
  if (class_loader_data() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3128
    st->print(BULLET"class loader data:  ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3129
    class_loader_data()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3130
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3131
  }
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  3132
  st->print(BULLET"unsafe anonymous host class:        "); Metadata::print_value_on_maybe_null(st, unsafe_anonymous_host()); st->cr();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3133
  if (source_file_name() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3134
    st->print(BULLET"source file:       ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3135
    source_file_name()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3136
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3137
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3138
  if (source_debug_extension() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3139
    st->print(BULLET"source debug extension:       ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3140
    st->print("%s", source_debug_extension());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3141
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3142
  }
15601
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  3143
  st->print(BULLET"class annotations:       "); class_annotations()->print_value_on(st); st->cr();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  3144
  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
  3145
  st->print(BULLET"field annotations:       "); fields_annotations()->print_value_on(st); st->cr();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  3146
  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
  3147
  {
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3148
    bool have_pv = false;
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3149
    // previous versions are linked together through the InstanceKlass
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  3150
    for (InstanceKlass* pv_node = previous_versions();
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3151
         pv_node != NULL;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3152
         pv_node = pv_node->previous_versions()) {
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3153
      if (!have_pv)
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3154
        st->print(BULLET"previous version:  ");
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3155
      have_pv = true;
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3156
      pv_node->constants()->print_value_on(st);
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3157
    }
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3158
    if (have_pv) st->cr();
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3159
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3160
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3161
  if (generic_signature() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3162
    st->print(BULLET"generic signature: ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3163
    generic_signature()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3164
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3165
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3166
  st->print(BULLET"inner classes:     "); inner_classes()->print_value_on(st);     st->cr();
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  3167
  st->print(BULLET"nest members:     "); nest_members()->print_value_on(st);     st->cr();
51268
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3168
  if (java_mirror() != NULL) {
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3169
    st->print(BULLET"java mirror:       ");
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3170
    java_mirror()->print_value_on(st);
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3171
    st->cr();
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3172
  } else {
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3173
    st->print_cr(BULLET"java mirror:       NULL");
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3174
  }
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  3175
  st->print(BULLET"vtable length      %d  (start addr: " INTPTR_FORMAT ")", vtable_length(), p2i(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
  3176
  if (vtable_length() > 0 && (Verbose || WizardMode))  print_vtable(start_of_vtable(), vtable_length(), st);
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  3177
  st->print(BULLET"itable length      %d (start addr: " INTPTR_FORMAT ")", itable_length(), p2i(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
  3178
  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
  3179
  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
  3180
  FieldPrinter print_static_field(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3181
  ((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
  3182
  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
  3183
  FieldPrinter print_nonstatic_field(st);
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  3184
  InstanceKlass* ik = const_cast<InstanceKlass*>(this);
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  3185
  ik->do_nonstatic_fields(&print_nonstatic_field);
13728
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
  st->print(BULLET"non-static oop maps: ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3188
  OopMapBlock* map     = start_of_nonstatic_oop_maps();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3189
  OopMapBlock* end_map = map + nonstatic_oop_map_count();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3190
  while (map < end_map) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3191
    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
  3192
    map++;
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
  st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3195
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3196
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3197
#endif //PRODUCT
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
void InstanceKlass::print_value_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3200
  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
  3201
  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
  3202
  name()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3203
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3204
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3205
#ifndef PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3206
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3207
void FieldPrinter::do_field(fieldDescriptor* fd) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3208
  _st->print(BULLET);
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3209
   if (_obj == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3210
     fd->print_on(_st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3211
     _st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3212
   } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3213
     fd->print_on_for(_st, _obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3214
     _st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3215
   }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3216
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3217
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3218
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3219
void InstanceKlass::oop_print_on(oop obj, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3220
  Klass::oop_print_on(obj, st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3221
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3222
  if (this == SystemDictionary::String_klass()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3223
    typeArrayOop value  = java_lang_String::value(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3224
    juint        length = java_lang_String::length(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3225
    if (value != NULL &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3226
        value->is_typeArray() &&
33628
09241459a8b8 8141132: JEP 254: Compact Strings
thartmann
parents: 33151
diff changeset
  3227
        length <= (juint) value->length()) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3228
      st->print(BULLET"string: ");
22907
f978a4a64728 8035648: Don't use Handle in java_lang_String::print
stefank
parents: 22881
diff changeset
  3229
      java_lang_String::print(obj, st);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3230
      st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3231
      if (!WizardMode)  return;  // that is enough
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3232
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3233
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3234
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3235
  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
  3236
  FieldPrinter print_field(st, obj);
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3237
  do_nonstatic_fields(&print_field);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3238
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3239
  if (this == SystemDictionary::Class_klass()) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3240
    st->print(BULLET"signature: ");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3241
    java_lang_Class::print_signature(obj, st);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3242
    st->cr();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3243
    Klass* mirrored_klass = java_lang_Class::as_Klass(obj);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3244
    st->print(BULLET"fake entry for mirror: ");
51265
8329bfbe1b30 8208399: Metadata methods print_(value_)on_maybe_null() compare 'this' to NULL
hseigel
parents: 51096
diff changeset
  3245
    Metadata::print_value_on_maybe_null(st, mirrored_klass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3246
    st->cr();
46722
ae2cfffe2e64 8185296: java_lang_Class::array_klass should be array_klass_acquire
coleenp
parents: 46701
diff changeset
  3247
    Klass* array_klass = java_lang_Class::array_klass_acquire(obj);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3248
    st->print(BULLET"fake entry for array: ");
51265
8329bfbe1b30 8208399: Metadata methods print_(value_)on_maybe_null() compare 'this' to NULL
hseigel
parents: 51096
diff changeset
  3249
    Metadata::print_value_on_maybe_null(st, array_klass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3250
    st->cr();
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3251
    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
  3252
    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
  3253
    Klass* real_klass = java_lang_Class::as_Klass(obj);
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33602
diff changeset
  3254
    if (real_klass != NULL && real_klass->is_instance_klass()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3255
      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
  3256
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3257
  } else if (this == SystemDictionary::MethodType_klass()) {
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3916
diff changeset
  3258
    st->print(BULLET"signature: ");
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8653
diff changeset
  3259
    java_lang_invoke_MethodType::print_signature(obj, st);
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3916
diff changeset
  3260
    st->cr();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3261
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3262
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3263
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3264
bool InstanceKlass::verify_itable_index(int i) {
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3265
  int method_count = klassItable::method_count_for_interface(this);
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3266
  assert(i >= 0 && i < method_count, "index out of bounds");
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3267
  return true;
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3268
}
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3269
4584
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 4573
diff changeset
  3270
#endif //PRODUCT
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 4573
diff changeset
  3271
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3272
void InstanceKlass::oop_print_value_on(oop obj, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3273
  st->print("a ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3274
  name()->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3275
  obj->print_address_on(st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3276
  if (this == SystemDictionary::String_klass()
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3277
      && java_lang_String::value(obj) != NULL) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3278
    ResourceMark rm;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3279
    int len = java_lang_String::length(obj);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3280
    int plen = (len < 24 ? len : 12);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3281
    char* str = java_lang_String::as_utf8_string(obj, 0, plen);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3282
    st->print(" = \"%s\"", str);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3283
    if (len > plen)
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3284
      st->print("...[%d]", len);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3285
  } else if (this == SystemDictionary::Class_klass()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3286
    Klass* k = java_lang_Class::as_Klass(obj);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3287
    st->print(" = ");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3288
    if (k != NULL) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3289
      k->print_value_on(st);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3290
    } else {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3291
      const char* tname = type2name(java_lang_Class::primitive_type(obj));
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3292
      st->print("%s", tname ? tname : "type?");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3293
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3294
  } else if (this == SystemDictionary::MethodType_klass()) {
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3916
diff changeset
  3295
    st->print(" = ");
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8653
diff changeset
  3296
    java_lang_invoke_MethodType::print_signature(obj, st);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3297
  } else if (java_lang_boxing_object::is_instance(obj)) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3298
    st->print(" = ");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3299
    java_lang_boxing_object::print(obj, st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3300
  } 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
  3301
    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
  3302
    if (vmentry != NULL) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3303
      st->print(" => ");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3304
      vmentry->print_value_on(st);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3305
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3306
  } else if (this == SystemDictionary::MemberName_klass()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3307
    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
  3308
    if (vmtarget != NULL) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3309
      st->print(" = ");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3310
      vmtarget->print_value_on(st);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3311
    } else {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3312
      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
  3313
      st->print(".");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3314
      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
  3315
    }
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3316
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3317
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3318
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3319
const char* InstanceKlass::internal_name() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3320
  return external_name();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3321
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3322
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3323
void InstanceKlass::print_class_load_logging(ClassLoaderData* loader_data,
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3324
                                             const char* module_name,
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3325
                                             const ClassFileStream* cfs) const {
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3326
  if (!log_is_enabled(Info, class, load)) {
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3327
    return;
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3328
  }
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3329
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3330
  ResourceMark rm;
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3331
  LogMessage(class, load) msg;
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3332
  stringStream info_stream;
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3333
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3334
  // Name and class hierarchy info
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3335
  info_stream.print("%s", external_name());
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3336
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3337
  // Source
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3338
  if (cfs != NULL) {
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3339
    if (cfs->source() != NULL) {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  3340
      if (module_name != NULL) {
47673
6126617b8508 8185160: -XX:DumpLoadedClassList omits graal classes
iklam
parents: 47668
diff changeset
  3341
        if (ClassLoader::is_modules_image(cfs->source())) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3342
          info_stream.print(" source: jrt:/%s", module_name);
39277
460f34bbd0c0 8157490: JCK test vm/jni/DefineClass/dfcl001/dfcl00101m1/dfcl00101m1 crashes when run with -Xlog:classload=info
mockner
parents: 39216
diff changeset
  3343
        } else {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3344
          info_stream.print(" source: %s", cfs->source());
39277
460f34bbd0c0 8157490: JCK test vm/jni/DefineClass/dfcl001/dfcl00101m1/dfcl00101m1 crashes when run with -Xlog:classload=info
mockner
parents: 39216
diff changeset
  3345
        }
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  3346
      } else {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3347
        info_stream.print(" source: %s", cfs->source());
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  3348
      }
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3349
    } else if (loader_data == ClassLoaderData::the_null_class_loader_data()) {
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3350
      Thread* THREAD = Thread::current();
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3351
      Klass* caller =
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3352
            THREAD->is_Java_thread()
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3353
                ? ((JavaThread*)THREAD)->security_get_caller_class(1)
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3354
                : NULL;
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3355
      // caller can be NULL, for example, during a JVMTI VM_Init hook
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3356
      if (caller != NULL) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3357
        info_stream.print(" source: instance of %s", caller->external_name());
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3358
      } else {
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3359
        // source is unknown
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3360
      }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3361
    } else {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
  3362
      oop class_loader = loader_data->class_loader();
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3363
      info_stream.print(" source: %s", class_loader->klass()->external_name());
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3364
    }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3365
  } else {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3366
    info_stream.print(" source: shared objects file");
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3367
  }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3368
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3369
  msg.info("%s", info_stream.as_string());
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3370
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3371
  if (log_is_enabled(Debug, class, load)) {
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3372
    stringStream debug_stream;
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3373
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3374
    // Class hierarchy info
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3375
    debug_stream.print(" klass: " INTPTR_FORMAT " super: " INTPTR_FORMAT,
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3376
                       p2i(this),  p2i(superklass()));
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3377
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3378
    // Interfaces
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3379
    if (local_interfaces() != NULL && local_interfaces()->length() > 0) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3380
      debug_stream.print(" interfaces:");
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3381
      int length = local_interfaces()->length();
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3382
      for (int i = 0; i < length; i++) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3383
        debug_stream.print(" " INTPTR_FORMAT,
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3384
                           p2i(InstanceKlass::cast(local_interfaces()->at(i))));
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3385
      }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3386
    }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3387
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3388
    // Class loader
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3389
    debug_stream.print(" loader: [");
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3390
    loader_data->print_value_on(&debug_stream);
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3391
    debug_stream.print("]");
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3392
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3393
    // Classfile checksum
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3394
    if (cfs) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3395
      debug_stream.print(" bytes: %d checksum: %08x",
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3396
                         cfs->length(),
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3397
                         ClassLoader::crc32(0, (const char*)cfs->buffer(),
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3398
                         cfs->length()));
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3399
    }
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3400
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3401
    msg.debug("%s", debug_stream.as_string());
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3402
  }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3403
}
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3404
15437
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3405
#if INCLUDE_SERVICES
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3406
// Size Statistics
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3407
void InstanceKlass::collect_statistics(KlassSizeStats *sz) const {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3408
  Klass::collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3409
35898
ddc274f0052f 8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
coleenp
parents: 35847
diff changeset
  3410
  sz->_inst_size  = wordSize * size_helper();
ddc274f0052f 8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
coleenp
parents: 35847
diff changeset
  3411
  sz->_vtab_bytes = wordSize * vtable_length();
ddc274f0052f 8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
coleenp
parents: 35847
diff changeset
  3412
  sz->_itab_bytes = wordSize * itable_length();
ddc274f0052f 8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
coleenp
parents: 35847
diff changeset
  3413
  sz->_nonstatic_oopmap_bytes = wordSize * nonstatic_oop_map_size();
15437
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3414
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3415
  int n = 0;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3416
  n += (sz->_methods_array_bytes         = sz->count_array(methods()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3417
  n += (sz->_method_ordering_bytes       = sz->count_array(method_ordering()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3418
  n += (sz->_local_interfaces_bytes      = sz->count_array(local_interfaces()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3419
  n += (sz->_transitive_interfaces_bytes = sz->count_array(transitive_interfaces()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3420
  n += (sz->_fields_bytes                = sz->count_array(fields()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3421
  n += (sz->_inner_classes_bytes         = sz->count_array(inner_classes()));
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  3422
  n += (sz->_nest_members_bytes          = sz->count_array(nest_members()));
15437
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3423
  sz->_ro_bytes += n;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3424
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3425
  const ConstantPool* cp = constants();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3426
  if (cp) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3427
    cp->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3428
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3429
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3430
  const Annotations* anno = annotations();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3431
  if (anno) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3432
    anno->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3433
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3434
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3435
  const Array<Method*>* methods_array = methods();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3436
  if (methods()) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3437
    for (int i = 0; i < methods_array->length(); i++) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3438
      Method* method = methods_array->at(i);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3439
      if (method) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3440
        sz->_method_count ++;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3441
        method->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3442
      }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3443
    }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3444
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3445
}
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3446
#endif // INCLUDE_SERVICES
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3447
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3448
// Verification
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3449
50800
6da12aa23b88 8205607: Use oop_iterate instead of oop_iterate_no_header
stefank
parents: 50761
diff changeset
  3450
class VerifyFieldClosure: public BasicOopIterateClosure {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3451
 protected:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3452
  template <class T> void do_oop_work(T* p) {
49592
77fb0be7d19f 8199946: Move load/store and encode/decode out of oopDesc
stefank
parents: 49473
diff changeset
  3453
    oop obj = RawAccess<>::oop_load(p);
46968
9119841280f4 8160399: is_oop_or_null involves undefined behavior
coleenp
parents: 46766
diff changeset
  3454
    if (!oopDesc::is_oop_or_null(obj)) {
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  3455
      tty->print_cr("Failed: " PTR_FORMAT " -> " PTR_FORMAT, p2i(p), p2i(obj));
35061
be6025ebffea 8145092: Use Unified Logging for the GC logging
brutisso
parents: 34666
diff changeset
  3456
      Universe::print_on(tty);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3457
      guarantee(false, "boom");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3458
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3459
  }
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3460
 public:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3461
  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
  3462
  virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3463
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3464
22794
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3465
void InstanceKlass::verify_on(outputStream* st) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3466
#ifndef PRODUCT
18439
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3467
  // 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
  3468
  if (_verify_count == Universe::verify_count()) return;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3469
  _verify_count = Universe::verify_count();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3470
#endif
18439
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3471
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3472
  // Verify Klass
22794
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3473
  Klass::verify_on(st);
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3474
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3475
  // 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
  3476
  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
  3477
            "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
  3478
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3479
  // Verify vtables
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3480
  if (is_linked()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3481
    // $$$ 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
  3482
    // always seemed a valid generalization.  (DLD -- 6/00)
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
  3483
    vtable().verify(st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3484
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3485
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3486
  // Verify first subklass
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3487
  if (subklass() != NULL) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3488
    guarantee(subklass()->is_klass(), "should be klass");
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3489
  }
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3490
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3491
  // Verify siblings
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3492
  Klass* super = this->super();
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3493
  Klass* sib = next_sibling();
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3494
  if (sib != NULL) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3495
    if (sib == this) {
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3496
      fatal("subclass points to itself " PTR_FORMAT, p2i(sib));
52311
274ba8fbd96d 8212958: Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52232
diff changeset
  3497
    }
274ba8fbd96d 8212958: Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52232
diff changeset
  3498
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3499
    guarantee(sib->is_klass(), "should be klass");
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3500
    guarantee(sib->super() == super, "siblings should have same superklass");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3501
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3502
52356
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3503
  // Verify implementor fields requires the Compile_lock, but this is sometimes
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3504
  // called inside a safepoint, so don't verify.
19c4a3eec4d7 8213211: [BACKOUT] Allow Klass::_subklass and _next_sibling to have unloaded classes
coleenp
parents: 52311
diff changeset
  3505
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3506
  // Verify local interfaces
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3507
  if (local_interfaces()) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3508
    Array<InstanceKlass*>* local_interfaces = this->local_interfaces();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3509
    for (int j = 0; j < local_interfaces->length(); j++) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3510
      InstanceKlass* e = local_interfaces->at(j);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  3511
      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
  3512
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3513
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3514
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3515
  // Verify transitive interfaces
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3516
  if (transitive_interfaces() != NULL) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3517
    Array<InstanceKlass*>* transitive_interfaces = this->transitive_interfaces();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3518
    for (int j = 0; j < transitive_interfaces->length(); j++) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3519
      InstanceKlass* e = transitive_interfaces->at(j);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  3520
      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
  3521
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3522
  }
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
  // Verify methods
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3525
  if (methods() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3526
    Array<Method*>* methods = this->methods();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3527
    for (int j = 0; j < methods->length(); j++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3528
      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
  3529
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3530
    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
  3531
      Method* m1 = methods->at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3532
      Method* m2 = methods->at(j + 1);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3533
      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
  3534
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3535
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3536
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3537
  // Verify method ordering
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3538
  if (method_ordering() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3539
    Array<int>* method_ordering = this->method_ordering();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3540
    int length = method_ordering->length();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3541
    if (JvmtiExport::can_maintain_original_method_order() ||
16667
f0c0139a2125 8010943: guarantee(length == 0) failed: invalid method ordering length
hseigel
parents: 15935
diff changeset
  3542
        ((UseSharedSpaces || DumpSharedSpaces) && length != 0)) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3543
      guarantee(length == methods()->length(), "invalid method ordering length");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3544
      jlong sum = 0;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3545
      for (int j = 0; j < length; j++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3546
        int original_index = method_ordering->at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3547
        guarantee(original_index >= 0, "invalid method ordering index");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3548
        guarantee(original_index < length, "invalid method ordering index");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3549
        sum += original_index;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3550
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3551
      // Verify sum of indices 0,1,...,length-1
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3552
      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
  3553
    } else {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3554
      guarantee(length == 0, "invalid method ordering length");
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
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3557
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3558
  // Verify default methods
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3559
  if (default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3560
    Array<Method*>* methods = this->default_methods();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3561
    for (int j = 0; j < methods->length(); j++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3562
      guarantee(methods->at(j)->is_method(), "non-method in methods array");
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3563
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3564
    for (int j = 0; j < methods->length() - 1; j++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3565
      Method* m1 = methods->at(j);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3566
      Method* m2 = methods->at(j + 1);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3567
      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
  3568
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3569
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3570
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3571
  // Verify JNI static field identifiers
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3572
  if (jni_ids() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3573
    jni_ids()->verify(this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3574
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3575
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3576
  // Verify other fields
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3577
  if (array_klasses() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3578
    guarantee(array_klasses()->is_klass(), "should be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3579
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3580
  if (constants() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3581
    guarantee(constants()->is_constantPool(), "should be constant pool");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3582
  }
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  3583
  const Klass* anonymous_host = unsafe_anonymous_host();
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  3584
  if (anonymous_host != NULL) {
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  3585
    guarantee(anonymous_host->is_klass(), "should be klass");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3586
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3587
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3588
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3589
void InstanceKlass::oop_verify_on(oop obj, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3590
  Klass::oop_verify_on(obj, st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3591
  VerifyFieldClosure blk;
50800
6da12aa23b88 8205607: Use oop_iterate instead of oop_iterate_no_header
stefank
parents: 50761
diff changeset
  3592
  obj->oop_iterate(&blk);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3593
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3594
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3595
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3596
// JNIid class for jfieldIDs only
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3597
// Note to reviewers:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3598
// 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
  3599
// in the compressed oops workspace.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3600
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
  3601
  _holder = holder;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3602
  _offset = offset;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3603
  _next = next;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3604
  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
  3605
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3606
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3607
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3608
JNIid* JNIid::find(int offset) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3609
  JNIid* current = this;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3610
  while (current != NULL) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3611
    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
  3612
    current = current->next();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3613
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3614
  return NULL;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3615
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3616
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3617
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
  3618
  while (current != NULL) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3619
    JNIid* next = current->next();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3620
    delete current;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3621
    current = next;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3622
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3623
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3624
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3625
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3626
void JNIid::verify(Klass* holder) {
13738
d67be49a5beb 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 13736
diff changeset
  3627
  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
  3628
  int end_field_offset;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3629
  end_field_offset = first_field_offset + (InstanceKlass::cast(holder)->static_field_size() * wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3630
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3631
  JNIid* current = this;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3632
  while (current != NULL) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3633
    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
  3634
#ifdef ASSERT
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3635
    int o = current->offset();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3636
    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
  3637
      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
  3638
    }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3639
#endif
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3640
    current = current->next();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3641
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3642
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3643
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3644
#ifdef ASSERT
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3645
void InstanceKlass::set_init_state(ClassState state) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3646
  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
  3647
                                               : (_init_state < state);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3648
  assert(good_state || state == allocated, "illegal state transition");
11407
5399831730cd 7117052: instanceKlass::_init_state can be u1 type
coleenp
parents: 10739
diff changeset
  3649
  _init_state = (u1)state;
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3650
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3651
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3652
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  3653
#if INCLUDE_JVMTI
29576
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  3654
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3655
// RedefineClasses() support for previous versions
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3656
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3657
// Globally, there is at least one previous version of a class to walk
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3658
// during class unloading, which is saved because old methods in the class
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3659
// are still running.   Otherwise the previous version list is cleaned up.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3660
bool InstanceKlass::_has_previous_versions = false;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3661
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3662
// Returns true if there are previous versions of a class for class
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3663
// unloading only. Also resets the flag to false. purge_previous_version
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3664
// will set the flag to true if there are any left, i.e., if there's any
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3665
// work to do for next time. This is to avoid the expensive code cache
51338
aa3bfacc912c 8208677: Move inner metaspace cleaning out of class unloading
coleenp
parents: 51334
diff changeset
  3666
// walk in CLDG::clean_deallocate_lists().
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3667
bool InstanceKlass::has_previous_versions_and_reset() {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3668
  bool ret = _has_previous_versions;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3669
  log_trace(redefine, class, iklass, purge)("Class unloading: has_previous_versions = %s",
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3670
     ret ? "true" : "false");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3671
  _has_previous_versions = false;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3672
  return ret;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3673
}
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3674
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3675
// Purge previous versions before adding new previous versions of the class and
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3676
// during class unloading.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3677
void InstanceKlass::purge_previous_version_list() {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3678
  assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3679
  assert(has_been_redefined(), "Should only be called for main class");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3680
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3681
  // Quick exit.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3682
  if (previous_versions() == NULL) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3683
    return;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3684
  }
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3685
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3686
  // This klass has previous versions so see what we can cleanup
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3687
  // while it is safe to do so.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3688
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3689
  int deleted_count = 0;    // leave debugging breadcrumbs
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3690
  int live_count = 0;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3691
  ClassLoaderData* loader_data = class_loader_data();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3692
  assert(loader_data != NULL, "should never be null");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3693
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3694
  ResourceMark rm;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3695
  log_trace(redefine, class, iklass, purge)("%s: previous versions", external_name());
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3696
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3697
  // previous versions are linked together through the InstanceKlass
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3698
  InstanceKlass* pv_node = previous_versions();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3699
  InstanceKlass* last = this;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3700
  int version = 0;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3701
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3702
  // check the previous versions list
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3703
  for (; pv_node != NULL; ) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3704
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3705
    ConstantPool* pvcp = pv_node->constants();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3706
    assert(pvcp != NULL, "cp ref was unexpectedly cleared");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3707
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3708
    if (!pvcp->on_stack()) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3709
      // If the constant pool isn't on stack, none of the methods
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3710
      // are executing.  Unlink this previous_version.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3711
      // The previous version InstanceKlass is on the ClassLoaderData deallocate list
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3712
      // so will be deallocated during the next phase of class unloading.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3713
      log_trace(redefine, class, iklass, purge)
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3714
        ("previous version " INTPTR_FORMAT " is dead.", p2i(pv_node));
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3715
      // For debugging purposes.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3716
      pv_node->set_is_scratch_class();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3717
      // Unlink from previous version list.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3718
      assert(pv_node->class_loader_data() == loader_data, "wrong loader_data");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3719
      InstanceKlass* next = pv_node->previous_versions();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3720
      pv_node->link_previous_versions(NULL);   // point next to NULL
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3721
      last->link_previous_versions(next);
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3722
      // Add to the deallocate list after unlinking
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3723
      loader_data->add_to_deallocate_list(pv_node);
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3724
      pv_node = next;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3725
      deleted_count++;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3726
      version++;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3727
      continue;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3728
    } else {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3729
      log_trace(redefine, class, iklass, purge)("previous version " INTPTR_FORMAT " is alive", p2i(pv_node));
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3730
      assert(pvcp->pool_holder() != NULL, "Constant pool with no holder");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3731
      guarantee (!loader_data->is_unloading(), "unloaded classes can't be on the stack");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3732
      live_count++;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3733
      // found a previous version for next time we do class unloading
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3734
      _has_previous_versions = true;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3735
    }
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3736
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3737
    // At least one method is live in this previous version.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3738
    // Reset dead EMCP methods not to get breakpoints.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3739
    // All methods are deallocated when all of the methods for this class are no
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3740
    // longer running.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3741
    Array<Method*>* method_refs = pv_node->methods();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3742
    if (method_refs != NULL) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3743
      log_trace(redefine, class, iklass, purge)("previous methods length=%d", method_refs->length());
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3744
      for (int j = 0; j < method_refs->length(); j++) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3745
        Method* method = method_refs->at(j);
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3746
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3747
        if (!method->on_stack()) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3748
          // no breakpoints for non-running methods
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3749
          if (method->is_running_emcp()) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3750
            method->set_running_emcp(false);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3751
          }
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3752
        } else {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3753
          assert (method->is_obsolete() || method->is_running_emcp(),
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3754
                  "emcp method cannot run after emcp bit is cleared");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3755
          log_trace(redefine, class, iklass, purge)
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3756
            ("purge: %s(%s): prev method @%d in version @%d is alive",
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3757
             method->name()->as_C_string(), method->signature()->as_C_string(), j, version);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3758
        }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3759
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3760
    }
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3761
    // next previous version
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3762
    last = pv_node;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3763
    pv_node = pv_node->previous_versions();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3764
    version++;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3765
  }
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3766
  log_trace(redefine, class, iklass, purge)
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3767
    ("previous version stats: live=%d, deleted=%d", live_count, deleted_count);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3768
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3769
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3770
void InstanceKlass::mark_newly_obsolete_methods(Array<Method*>* old_methods,
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3771
                                                int emcp_method_count) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3772
  int obsolete_method_count = old_methods->length() - emcp_method_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3773
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3774
  if (emcp_method_count != 0 && obsolete_method_count != 0 &&
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3775
      _previous_versions != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3776
    // We have a mix of obsolete and EMCP methods so we have to
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3777
    // clear out any matching EMCP method entries the hard way.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3778
    int local_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3779
    for (int i = 0; i < old_methods->length(); i++) {
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3780
      Method* old_method = old_methods->at(i);
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3781
      if (old_method->is_obsolete()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3782
        // only obsolete methods are interesting
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  3783
        Symbol* m_name = old_method->name();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  3784
        Symbol* m_signature = old_method->signature();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3785
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3786
        // previous versions are linked together through the InstanceKlass
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3787
        int j = 0;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3788
        for (InstanceKlass* prev_version = _previous_versions;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3789
             prev_version != NULL;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3790
             prev_version = prev_version->previous_versions(), j++) {
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3791
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3792
          Array<Method*>* method_refs = prev_version->methods();
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3793
          for (int k = 0; k < method_refs->length(); k++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3794
            Method* method = method_refs->at(k);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3795
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3796
            if (!method->is_obsolete() &&
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3797
                method->name() == m_name &&
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3798
                method->signature() == m_signature) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3799
              // The current RedefineClasses() call has made all EMCP
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3800
              // versions of this method obsolete so mark it as obsolete
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3801
              log_trace(redefine, class, iklass, add)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3802
                ("%s(%s): flush obsolete method @%d in version @%d",
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3803
                 m_name->as_C_string(), m_signature->as_C_string(), k, j);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3804
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3805
              method->set_is_obsolete();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3806
              break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3807
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3808
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3809
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3810
          // The previous loop may not find a matching EMCP method, but
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3811
          // that doesn't mean that we can optimize and not go any
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3812
          // further back in the PreviousVersion generations. The EMCP
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3813
          // method for this generation could have already been made obsolete,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3814
          // but there still may be an older EMCP method that has not
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3815
          // been made obsolete.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3816
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3817
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3818
        if (++local_count >= obsolete_method_count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3819
          // no more obsolete methods so bail out now
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3820
          break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3821
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3822
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3823
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3824
  }
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3825
}
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3826
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3827
// Save the scratch_class as the previous version if any of the methods are running.
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3828
// The previous_versions are used to set breakpoints in EMCP methods and they are
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3829
// also used to clean MethodData links to redefined methods that are no longer running.
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  3830
void InstanceKlass::add_previous_version(InstanceKlass* scratch_class,
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3831
                                         int emcp_method_count) {
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3832
  assert(Thread::current()->is_VM_thread(),
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3833
         "only VMThread can add previous versions");
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3834
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3835
  ResourceMark rm;
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3836
  log_trace(redefine, class, iklass, add)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3837
    ("adding previous version ref for %s, EMCP_cnt=%d", scratch_class->external_name(), emcp_method_count);
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3838
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3839
  // Clean out old previous versions for this class
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3840
  purge_previous_version_list();
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3841
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3842
  // Mark newly obsolete methods in remaining previous versions.  An EMCP method from
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3843
  // a previous redefinition may be made obsolete by this redefinition.
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3844
  Array<Method*>* old_methods = scratch_class->methods();
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3845
  mark_newly_obsolete_methods(old_methods, emcp_method_count);
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3846
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3847
  // If the constant pool for this previous version of the class
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3848
  // is not marked as being on the stack, then none of the methods
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3849
  // in this previous version of the class are on the stack so
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3850
  // we don't need to add this as a previous version.
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3851
  ConstantPool* cp_ref = scratch_class->constants();
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3852
  if (!cp_ref->on_stack()) {
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3853
    log_trace(redefine, class, iklass, add)("scratch class not added; no methods are running");
29576
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  3854
    // For debugging purposes.
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  3855
    scratch_class->set_is_scratch_class();
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  3856
    scratch_class->class_loader_data()->add_to_deallocate_list(scratch_class);
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3857
    return;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3858
  }
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3859
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3860
  if (emcp_method_count != 0) {
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3861
    // At least one method is still running, check for EMCP methods
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3862
    for (int i = 0; i < old_methods->length(); i++) {
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3863
      Method* old_method = old_methods->at(i);
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3864
      if (!old_method->is_obsolete() && old_method->on_stack()) {
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3865
        // if EMCP method (not obsolete) is on the stack, mark as EMCP so that
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3866
        // we can add breakpoints for it.
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3867
29576
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  3868
        // We set the method->on_stack bit during safepoints for class redefinition
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  3869
        // and use this bit to set the is_running_emcp bit.
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3870
        // After the safepoint, the on_stack bit is cleared and the running emcp
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3871
        // method may exit.   If so, we would set a breakpoint in a method that
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3872
        // is never reached, but this won't be noticeable to the programmer.
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3873
        old_method->set_running_emcp(true);
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3874
        log_trace(redefine, class, iklass, add)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3875
          ("EMCP method %s is on_stack " INTPTR_FORMAT, old_method->name_and_sig_as_C_string(), p2i(old_method));
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3876
      } else if (!old_method->is_obsolete()) {
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3877
        log_trace(redefine, class, iklass, add)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3878
          ("EMCP method %s is NOT on_stack " INTPTR_FORMAT, old_method->name_and_sig_as_C_string(), p2i(old_method));
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3879
      }
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3880
    }
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3881
  }
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3882
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3883
  // Add previous version if any methods are still running.
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3884
  // Set has_previous_version flag for processing during class unloading.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3885
  _has_previous_versions = true;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3886
  log_trace(redefine, class, iklass, add) ("scratch class added; one of its methods is on_stack.");
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3887
  assert(scratch_class->previous_versions() == NULL, "shouldn't have a previous version");
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3888
  scratch_class->link_previous_versions(previous_versions());
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  3889
  link_previous_versions(scratch_class);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3890
} // end add_previous_version()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3891
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  3892
#endif // INCLUDE_JVMTI
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3893
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3894
Method* InstanceKlass::method_with_idnum(int idnum) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3895
  Method* m = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3896
  if (idnum < methods()->length()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3897
    m = methods()->at(idnum);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3898
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3899
  if (m == NULL || m->method_idnum() != idnum) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3900
    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
  3901
      m = methods()->at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3902
      if (m->method_idnum() == idnum) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3903
        return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3904
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3905
    }
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3906
    // 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
  3907
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3908
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3909
  return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3910
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3911
30107
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3912
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3913
Method* InstanceKlass::method_with_orig_idnum(int idnum) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3914
  if (idnum >= methods()->length()) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3915
    return NULL;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3916
  }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3917
  Method* m = methods()->at(idnum);
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3918
  if (m != NULL && m->orig_method_idnum() == idnum) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3919
    return m;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3920
  }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3921
  // Obsolete method idnum does not match the original idnum
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3922
  for (int index = 0; index < methods()->length(); ++index) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3923
    m = methods()->at(index);
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3924
    if (m->orig_method_idnum() == idnum) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3925
      return m;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3926
    }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3927
  }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3928
  // None found, return null for the caller to handle.
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3929
  return NULL;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3930
}
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3931
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3932
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3933
Method* InstanceKlass::method_with_orig_idnum(int idnum, int version) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3934
  InstanceKlass* holder = get_klass_version(version);
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3935
  if (holder == NULL) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3936
    return NULL; // The version of klass is gone, no method is found
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3937
  }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3938
  Method* method = holder->method_with_orig_idnum(idnum);
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3939
  return method;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3940
}
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3941
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  3942
#if INCLUDE_JVMTI
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3943
JvmtiCachedClassFileData* InstanceKlass::get_cached_class_file() {
48794
ea0d0781c63c 8178351: Simplify MetaspaceShared::is_in_shared_space and MetaspaceObj::is_shared
iklam
parents: 48619
diff changeset
  3944
  if (MetaspaceShared::is_in_shared_metaspace(_cached_class_file)) {
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3945
    // Ignore the archived class stream data
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3946
    return NULL;
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3947
  } else {
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3948
    return _cached_class_file;
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3949
  }
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3950
}
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3951
18940
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3952
jint InstanceKlass::get_cached_class_file_len() {
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3953
  return VM_RedefineClasses::get_cached_class_file_len(_cached_class_file);
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3954
}
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3955
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3956
unsigned char * InstanceKlass::get_cached_class_file_bytes() {
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3957
  return VM_RedefineClasses::get_cached_class_file_bytes(_cached_class_file);
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3958
}
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3959
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3960
#if INCLUDE_CDS
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3961
JvmtiCachedClassFileData* InstanceKlass::get_archived_class_data() {
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  3962
  if (DumpSharedSpaces) {
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3963
    return _cached_class_file;
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3964
  } else {
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  3965
    assert(this->is_shared(), "class should be shared");
48794
ea0d0781c63c 8178351: Simplify MetaspaceShared::is_in_shared_space and MetaspaceObj::is_shared
iklam
parents: 48619
diff changeset
  3966
    if (MetaspaceShared::is_in_shared_metaspace(_cached_class_file)) {
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  3967
      return _cached_class_file;
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  3968
    } else {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  3969
      return NULL;
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  3970
    }
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3971
  }
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3972
}
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  3973
#endif
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3974
#endif