src/hotspot/share/oops/instanceKlass.cpp
author coleenp
Wed, 26 Sep 2018 14:01:48 -0400
changeset 51887 32161fbea3fe
parent 51697 49e1b21d9878
child 51962 628909466216
permissions -rw-r--r--
8210856: Move InstanceKlass DependencyContext cleaning to SystemDictionary::do_unloading() Summary: Already walk classes in ClassLoaderData::unload so generalize to also clean nmethod dependencies. Reviewed-by: eosterlund, dlong, vlivanov
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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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50735
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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 names first and if they match then check actual klass. This avoids
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  // resolving anything unnecessarily.
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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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    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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   182
      } 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 different classes for the same name, 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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  log_trace(class, nestmates)("- class is NOT a nest member!");
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  return false;
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}
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   193
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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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   213
        }
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        return NULL;
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   215
      }
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   216
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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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   222
      }
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   223
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      Klass* k = _constants->klass_at(_nest_host_index, THREAD);
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   225
      if (HAS_PENDING_EXCEPTION) {
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   226
        Handle exc_h = Handle(THREAD, PENDING_EXCEPTION);
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   227
        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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   229
          ResourceMark rm(THREAD);
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   230
          char buf[200];
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   231
          CLEAR_PENDING_EXCEPTION;
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   232
          jio_snprintf(buf, sizeof(buf),
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   233
                       "Unable to load nest-host class (%s) of %s",
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   234
                       _constants->klass_name_at(_nest_host_index)->as_C_string(),
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   235
                       this->external_name());
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   236
          log_trace(class, nestmates)("%s - NoClassDefFoundError", buf);
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   237
          THROW_MSG_CAUSE_NULL(vmSymbols::java_lang_NoClassDefFoundError(), buf, exc_h);
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   238
        }
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   239
        // All other exceptions pass through (OOME, StackOverflowError, LinkageErrors etc).
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   240
        return NULL;
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   241
      }
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   242
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   243
      // A valid nest-host is an instance class in the current package that lists this
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   244
      // class as a nest member. If any of these conditions are not met we post the
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   245
      // requested exception type (if any) and return NULL
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   246
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   247
      const char* error = NULL;
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diff changeset
   248
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   249
      // JVMS 5.4.4 indicates package check comes first
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diff changeset
   250
      if (is_same_class_package(k)) {
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diff changeset
   251
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   252
        // Now check actual membership. We can't be a member if our "host" is
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   253
        // not an instance class.
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   254
        if (k->is_instance_klass()) {
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   255
          nest_host_k = InstanceKlass::cast(k);
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   256
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   257
          bool is_member = nest_host_k->has_nest_member(this, CHECK_NULL);
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   258
          if (is_member) {
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   259
            // save resolved nest-host value
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   260
            _nest_host = nest_host_k;
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   261
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   262
            if (log_is_enabled(Trace, class, nestmates)) {
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   263
              ResourceMark rm(THREAD);
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   264
              log_trace(class, nestmates)("Resolved nest-host of %s to %s",
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   265
                                          this->external_name(), k->external_name());
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   266
            }
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   267
            return nest_host_k;
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   268
          }
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   269
        }
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   270
        error = "current type is not listed as a nest member";
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   271
      } else {
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   272
        error = "types are in different packages";
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   273
      }
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   274
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   275
      if (log_is_enabled(Trace, class, nestmates)) {
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   276
        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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   278
                                    this->external_name(),
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   279
                                    k->external_name(),
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   280
                                    error);
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   281
      }
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diff changeset
   282
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   283
      if (validationException != NULL) {
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   284
        ResourceMark rm(THREAD);
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        Exceptions::fthrow(THREAD_AND_LOCATION,
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                           validationException,
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                           "Type %s is not a nest member of %s: %s",
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                           this->external_name(),
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                           k->external_name(),
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                           error
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                           );
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      }
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      return NULL;
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   294
    } else {
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   295
      if (log_is_enabled(Trace, class, nestmates)) {
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   296
        ResourceMark rm(THREAD);
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        log_trace(class, nestmates)("Type %s is not part of a nest: setting nest-host to self",
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                                    this->external_name());
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      }
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      // save resolved nest-host value
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      return (_nest_host = this);
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   302
    }
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  }
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  return nest_host_k;
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   305
}
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   306
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// check if 'this' and k are nestmates (same nest_host), or k is our nest_host,
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// or we are k's nest_host - all of which is covered by comparing the two
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// resolved_nest_hosts
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bool InstanceKlass::has_nestmate_access_to(InstanceKlass* k, TRAPS) {
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  assert(this != k, "this should be handled by higher-level code");
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  // Per JVMS 5.4.4 we first resolve and validate the current class, then
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  // the target class k. Resolution exceptions will be passed on by upper
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   316
  // layers. IncompatibleClassChangeErrors from membership validation failures
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  // will also be passed through.
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   318
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  Symbol* icce = vmSymbols::java_lang_IncompatibleClassChangeError();
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  InstanceKlass* cur_host = nest_host(icce, CHECK_false);
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   321
  if (cur_host == NULL) {
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   322
    return false;
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   323
  }
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diff changeset
   324
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   325
  Klass* k_nest_host = k->nest_host(icce, CHECK_false);
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   326
  if (k_nest_host == NULL) {
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   327
    return false;
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   328
  }
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diff changeset
   329
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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   330
  bool access = (cur_host == k_nest_host);
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   331
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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   332
  if (log_is_enabled(Trace, class, nestmates)) {
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   333
    ResourceMark rm(THREAD);
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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   334
    log_trace(class, nestmates)("Class %s does %shave nestmate access to %s",
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   335
                                this->external_name(),
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diff changeset
   336
                                access ? "" : "NOT ",
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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   337
                                k->external_name());
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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   338
  }
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
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   339
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   340
  return access;
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   341
}
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   342
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InstanceKlass* InstanceKlass::allocate_instance_klass(const ClassFileParser& parser, TRAPS) {
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   344
  const int size = InstanceKlass::size(parser.vtable_size(),
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   345
                                       parser.itable_size(),
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diff changeset
   346
                                       nonstatic_oop_map_size(parser.total_oop_map_count()),
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   347
                                       parser.is_interface(),
51444
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lfoltan
parents: 51379
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   348
                                       parser.is_unsafe_anonymous(),
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lfoltan
parents: 51379
diff changeset
   349
                                       should_store_fingerprint(parser.is_unsafe_anonymous()));
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   350
1c7168ea0034 8140485: Class load and creation cleanup
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diff changeset
   351
  const Symbol* const class_name = parser.class_name();
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diff changeset
   352
  assert(class_name != NULL, "invariant");
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diff changeset
   353
  ClassLoaderData* loader_data = parser.loader_data();
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diff changeset
   354
  assert(loader_data != NULL, "invariant");
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diff changeset
   355
1c7168ea0034 8140485: Class load and creation cleanup
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diff changeset
   356
  InstanceKlass* ik;
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diff changeset
   357
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   358
  // Allocation
34666
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diff changeset
   359
  if (REF_NONE == parser.reference_type()) {
1c7168ea0034 8140485: Class load and creation cleanup
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parents: 34629
diff changeset
   360
    if (class_name == vmSymbols::java_lang_Class()) {
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parents: 34629
diff changeset
   361
      // mirror
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parents: 34629
diff changeset
   362
      ik = new (loader_data, size, THREAD) InstanceMirrorKlass(parser);
1c7168ea0034 8140485: Class load and creation cleanup
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parents: 34629
diff changeset
   363
    }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   364
    else if (is_class_loader(class_name, parser)) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   365
      // class loader
1c7168ea0034 8140485: Class load and creation cleanup
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parents: 34629
diff changeset
   366
      ik = new (loader_data, size, THREAD) InstanceClassLoaderKlass(parser);
50735
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parents: 50634
diff changeset
   367
    } else {
34666
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parents: 34629
diff changeset
   368
      // normal
1c7168ea0034 8140485: Class load and creation cleanup
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parents: 34629
diff changeset
   369
      ik = new (loader_data, size, THREAD) InstanceKlass(parser, InstanceKlass::_misc_kind_other);
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parents: 34629
diff changeset
   370
    }
50735
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parents: 50634
diff changeset
   371
  } else {
34666
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parents: 34629
diff changeset
   372
    // reference
1c7168ea0034 8140485: Class load and creation cleanup
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parents: 34629
diff changeset
   373
    ik = new (loader_data, size, THREAD) InstanceRefKlass(parser);
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coleenp
parents: 13391
diff changeset
   374
  }
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parents: 13391
diff changeset
   375
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   376
  // 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
   377
  // class count.  Can get OOM here.
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   378
  if (HAS_PENDING_EXCEPTION) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   379
    return NULL;
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   380
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   381
13728
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coleenp
parents: 13391
diff changeset
   382
  return ik;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   383
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   384
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   385
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   386
// copy method ordering from resource area to Metaspace
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   387
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
   388
  if (m != NULL) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   389
    // 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
   390
    _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
   391
    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
   392
      _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
   393
    }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   394
  } else {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   395
    _method_ordering = Universe::the_empty_int_array();
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   396
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   397
}
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   398
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   399
// create a new array of vtable_indices for default methods
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   400
Array<int>* InstanceKlass::create_new_default_vtable_indices(int len, TRAPS) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   401
  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
   402
  assert(default_vtable_indices() == NULL, "only create once");
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   403
  set_default_vtable_indices(vtable_indices);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   404
  return vtable_indices;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   405
}
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   406
50752
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 50746
diff changeset
   407
InstanceKlass::InstanceKlass(const ClassFileParser& parser, unsigned kind, KlassID id) :
9d62da00bf15 8204540: Automatic oop closure devirtualization
stefank
parents: 50746
diff changeset
   408
  Klass(id),
51334
cc2c79d22508 8208671: Runtime, JFR, Serviceability changes to allow enabling -Wreorder
tschatzl
parents: 51329
diff changeset
   409
  _nest_members(NULL),
cc2c79d22508 8208671: Runtime, JFR, Serviceability changes to allow enabling -Wreorder
tschatzl
parents: 51329
diff changeset
   410
  _nest_host_index(0),
cc2c79d22508 8208671: Runtime, JFR, Serviceability changes to allow enabling -Wreorder
tschatzl
parents: 51329
diff changeset
   411
  _nest_host(NULL),
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   412
  _static_field_size(parser.static_field_size()),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   413
  _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
   414
  _itable_len(parser.itable_size()),
51334
cc2c79d22508 8208671: Runtime, JFR, Serviceability changes to allow enabling -Wreorder
tschatzl
parents: 51329
diff changeset
   415
  _reference_type(parser.reference_type()) {
35899
0dbc821628fc 8148047: Move the vtable length field to Klass
mgerdin
parents: 35898
diff changeset
   416
    set_vtable_length(parser.vtable_size());
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   417
    set_kind(kind);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   418
    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
   419
    set_is_unsafe_anonymous(parser.is_unsafe_anonymous());
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   420
    set_layout_helper(Klass::instance_layout_helper(parser.layout_size(),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   421
                                                    false));
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   422
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   423
    assert(NULL == _methods, "underlying memory not zeroed?");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   424
    assert(is_instance_klass(), "is layout incorrect?");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   425
    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
   426
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   427
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   428
void InstanceKlass::deallocate_methods(ClassLoaderData* loader_data,
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   429
                                       Array<Method*>* methods) {
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   430
  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
   431
      !methods->is_shared()) {
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   432
    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
   433
      Method* method = methods->at(i);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   434
      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
   435
      // 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
   436
      // 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
   437
      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
   438
      MetadataFactory::free_metadata(loader_data, method);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   439
    }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   440
    MetadataFactory::free_array<Method*>(loader_data, methods);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   441
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   442
}
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   443
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   444
void InstanceKlass::deallocate_interfaces(ClassLoaderData* loader_data,
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
   445
                                          const Klass* super_klass,
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   446
                                          Array<InstanceKlass*>* local_interfaces,
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   447
                                          Array<InstanceKlass*>* transitive_interfaces) {
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   448
  // 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
   449
  // 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
   450
  Array<InstanceKlass*>* ti = transitive_interfaces;
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   451
  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
   452
    // 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
   453
    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
   454
                    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
   455
    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
   456
      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
   457
    }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   458
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   459
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   460
  // local interfaces can be empty
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   461
  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
   462
      local_interfaces != NULL && !local_interfaces->is_shared()) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   463
    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
   464
  }
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   465
}
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   466
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   467
// 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
   468
// InstanceKlass points to.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   469
void InstanceKlass::deallocate_contents(ClassLoaderData* loader_data) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   470
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   471
  // 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
   472
  if (java_mirror() != NULL) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   473
    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
   474
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   475
47580
96392e113a0a 8186777: Make Klass::_java_mirror an OopHandle
coleenp
parents: 47216
diff changeset
   476
  // Also remove mirror from handles
96392e113a0a 8186777: Make Klass::_java_mirror an OopHandle
coleenp
parents: 47216
diff changeset
   477
  loader_data->remove_handle(_java_mirror);
96392e113a0a 8186777: Make Klass::_java_mirror an OopHandle
coleenp
parents: 47216
diff changeset
   478
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   479
  // 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
   480
  loader_data->remove_class(this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   481
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   482
  // 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
   483
  // 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
   484
  // 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
   485
  // to deallocate.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   486
  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
   487
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   488
  // 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
   489
  // reference counting symbol names.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   490
  release_C_heap_structures();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   491
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   492
  deallocate_methods(loader_data, methods());
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   493
  set_methods(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   494
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   495
  if (method_ordering() != NULL &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   496
      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
   497
      !method_ordering()->is_shared()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   498
    MetadataFactory::free_array<int>(loader_data, method_ordering());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   499
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   500
  set_method_ordering(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   501
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   502
  // default methods can be empty
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   503
  if (default_methods() != NULL &&
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   504
      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
   505
      !default_methods()->is_shared()) {
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   506
    MetadataFactory::free_array<Method*>(loader_data, default_methods());
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   507
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   508
  // Do NOT deallocate the default methods, they are owned by superinterfaces.
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   509
  set_default_methods(NULL);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   510
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   511
  // 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
   512
  if (default_vtable_indices() != NULL &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   513
      !default_vtable_indices()->is_shared()) {
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   514
    MetadataFactory::free_array<int>(loader_data, default_vtable_indices());
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   515
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
   516
  set_default_vtable_indices(NULL);
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
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   519
  // 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
   520
  // 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
   521
  // interfaces.
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   522
  if (secondary_supers() != NULL &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   523
      secondary_supers() != Universe::the_empty_klass_array() &&
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
   524
      // 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
   525
      (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
   526
      !secondary_supers()->is_shared()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   527
    MetadataFactory::free_array<Klass*>(loader_data, secondary_supers());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   528
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   529
  set_secondary_supers(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   530
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   531
  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
   532
  set_transitive_interfaces(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   533
  set_local_interfaces(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   534
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   535
  if (fields() != NULL && !fields()->is_shared()) {
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   536
    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
   537
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   538
  set_fields(NULL, 0);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   539
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   540
  // 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
   541
  // 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
   542
  if (constants() != NULL) {
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   543
    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
   544
    if (!constants()->is_shared()) {
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   545
      MetadataFactory::free_metadata(loader_data, constants());
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   546
    }
31353
cd33628db166 8076110: VM crash when class is redefined with Instrumentation.redefineClasses
aeriksso
parents: 31050
diff changeset
   547
    // 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
   548
    SystemDictionary::delete_resolution_error(constants());
cd33628db166 8076110: VM crash when class is redefined with Instrumentation.redefineClasses
aeriksso
parents: 31050
diff changeset
   549
15935
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   550
    set_constants(NULL);
50da9e5eb858 8003419: NPG: Clean up metadata created during class loading if failure
coleenp
parents: 15930
diff changeset
   551
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   552
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   553
  if (inner_classes() != NULL &&
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   554
      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
   555
      !inner_classes()->is_shared()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   556
    MetadataFactory::free_array<jushort>(loader_data, inner_classes());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   557
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   558
  set_inner_classes(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   559
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   560
  if (nest_members() != NULL &&
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   561
      nest_members() != Universe::the_empty_short_array() &&
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   562
      !nest_members()->is_shared()) {
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   563
    MetadataFactory::free_array<jushort>(loader_data, nest_members());
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   564
  }
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   565
  set_nest_members(NULL);
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
   566
20684
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   567
  // 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
   568
  if (annotations() != NULL && !annotations()->is_shared()) {
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   569
    MetadataFactory::free_metadata(loader_data, annotations());
057f5443edab 8024667: VM crashes with "assert(method() != NULL) failed: must have set method"
hseigel
parents: 20396
diff changeset
   570
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   571
  set_annotations(NULL);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   572
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   573
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   574
bool InstanceKlass::should_be_initialized() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   575
  return !is_initialized();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   578
klassItable InstanceKlass::itable() const {
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   579
  return klassItable(const_cast<InstanceKlass*>(this));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   580
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   581
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   582
void InstanceKlass::eager_initialize(Thread *thread) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   583
  if (!EagerInitialization) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   584
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  if (this->is_not_initialized()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
    // abort if the the class has a class initializer
489c9b5090e2 Initial load
duke
parents:
diff changeset
   587
    if (this->class_initializer() != NULL) return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   588
489c9b5090e2 Initial load
duke
parents:
diff changeset
   589
    // 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
   590
    Klass* super_klass = super();
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   591
    if (super_klass == NULL) return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   592
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
    // abort if the super class should be initialized
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   594
    if (!InstanceKlass::cast(super_klass)->is_initialized()) return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   595
489c9b5090e2 Initial load
duke
parents:
diff changeset
   596
    // call body to expose the this pointer
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   597
    eager_initialize_impl();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   600
17826
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   601
// 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
   602
// instanceKlass.  These accessors pretend these fields are there.
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   603
// 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
   604
oop InstanceKlass::protection_domain() const {
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   605
  // return the protection_domain from the mirror
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   606
  return java_lang_Class::protection_domain(java_mirror());
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   607
}
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   608
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   609
// 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
   610
objArrayOop InstanceKlass::signers() const {
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   611
  // return the signers from the mirror
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   612
  return java_lang_Class::signers(java_mirror());
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   613
}
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   614
20379
a4c59d30d67d 8025004: -XX:+CheckUnhandledOops asserts for JDK 8 Solaris fastdebug binaries
coleenp
parents: 20284
diff changeset
   615
oop InstanceKlass::init_lock() const {
17826
9ad5cd464a75 8003421: NPG: Move oops out of InstanceKlass into mirror
coleenp
parents: 17370
diff changeset
   616
  // return the init lock from the mirror
21079
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   617
  oop lock = java_lang_Class::init_lock(java_mirror());
26556
72da4c813e44 8046210: Missing memory barrier when reading init_lock
dholmes
parents: 26316
diff changeset
   618
  // Prevent reordering with any access of initialization state
72da4c813e44 8046210: Missing memory barrier when reading init_lock
dholmes
parents: 26316
diff changeset
   619
  OrderAccess::loadload();
21079
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   620
  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
   621
         "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
   622
  return lock;
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   623
}
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   624
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   625
// 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
   626
// 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
   627
// 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
   628
// the lock and return.
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   629
void InstanceKlass::fence_and_clear_init_lock() {
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   630
  // 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
   631
  OrderAccess::storestore();
7028d0cb9b49 8014910: deadlock between JVM/TI ClassPrepare event handler and CompilerThread
iklam
parents: 20684
diff changeset
   632
  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
   633
  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
   634
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   635
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   636
void InstanceKlass::eager_initialize_impl() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   637
  EXCEPTION_MARK;
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   638
  HandleMark hm(THREAD);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   639
  Handle h_init_lock(THREAD, init_lock());
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
   640
  ObjectLocker ol(h_init_lock, THREAD, h_init_lock() != NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   641
489c9b5090e2 Initial load
duke
parents:
diff changeset
   642
  // abort if someone beat us to the initialization
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   643
  if (!is_not_initialized()) return;  // note: not equivalent to is_initialized()
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   644
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   645
  ClassState old_state = init_state();
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   646
  link_class_impl(THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
  if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   648
    CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
    // Abort if linking the class throws an exception.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
489c9b5090e2 Initial load
duke
parents:
diff changeset
   651
    // Use a test to avoid redundantly resetting the state if there's
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
    // no change.  Set_init_state() asserts that state changes make
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
    // progress, whereas here we might just be spinning in place.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   654
    if (old_state != _init_state)
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   655
      set_init_state(old_state);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   657
    // linking successfull, mark class as initialized
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   658
    set_init_state(fully_initialized);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   659
    fence_and_clear_init_lock();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
    // trace
38151
fffedc5e5cf8 8154110: Update class* and safepoint* logging subsystems
mockner
parents: 38094
diff changeset
   661
    if (log_is_enabled(Info, class, init)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
      ResourceMark rm(THREAD);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   663
      log_info(class, init)("[Initialized %s without side effects]", external_name());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   666
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   667
489c9b5090e2 Initial load
duke
parents:
diff changeset
   668
489c9b5090e2 Initial load
duke
parents:
diff changeset
   669
// See "The Virtual Machine Specification" section 2.16.5 for a detailed explanation of the class initialization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   670
// process. The step comments refers to the procedure described in that section.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   671
// 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
   672
void InstanceKlass::initialize(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   673
  if (this->should_be_initialized()) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   674
    initialize_impl(CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   675
    // Note: at this point the class may be initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   676
    //       OR it may be in the state of being initialized
489c9b5090e2 Initial load
duke
parents:
diff changeset
   677
    //       in case of recursive initialization!
489c9b5090e2 Initial load
duke
parents:
diff changeset
   678
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   679
    assert(is_initialized(), "sanity check");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   680
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   681
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   682
489c9b5090e2 Initial load
duke
parents:
diff changeset
   683
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   684
bool InstanceKlass::verify_code(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   685
  // 1) Verify the bytecodes
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   686
  return Verifier::verify(this, should_verify_class(), THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   687
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   688
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
// Used exclusively by the shared spaces dump mechanism to prevent
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
// classes mapped into the shared regions in new VMs from appearing linked.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   692
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   693
void InstanceKlass::unlink_class() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  assert(is_linked(), "must be linked");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
  _init_state = loaded;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   698
void InstanceKlass::link_class(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   699
  assert(is_loaded(), "must be loaded");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
  if (!is_linked()) {
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   701
    link_class_impl(CHECK);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
// Called to verify that a class can link during initialization, without
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
// throwing a VerifyError.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   707
bool InstanceKlass::link_class_or_fail(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   708
  assert(is_loaded(), "must be loaded");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   709
  if (!is_linked()) {
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   710
    link_class_impl(CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   711
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   712
  return is_linked();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   713
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   714
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   715
bool InstanceKlass::link_class_impl(TRAPS) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   716
  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
   717
    // 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
   718
    // 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
   719
    // 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
   720
    //
55dc92f033b9 8166203: NoClassDefFoundError should not be thrown if class is in_error_state at link time
iklam
parents: 41669
diff changeset
   721
    // 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
   722
    // 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
   723
    // it doesn't execute any Java code.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   724
    ResourceMark rm(THREAD);
46431
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   725
    Exceptions::fthrow(THREAD_AND_LOCATION,
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   726
                       vmSymbols::java_lang_NoClassDefFoundError(),
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   727
                       "Class %s, or one of its supertypes, failed class initialization",
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   728
                       external_name());
87b0d1afe03e 8056900: Enhance NoClassDefFound exception messaging
hseigel
parents: 46408
diff changeset
   729
    return false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   730
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   731
  // return if already verified
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   732
  if (is_linked()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
  // Timing
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
  // timer handles recursion
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
  assert(THREAD->is_Java_thread(), "non-JavaThread in link_class_impl");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
  JavaThread* jt = (JavaThread*)THREAD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
  // link super class before linking this class
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   742
  Klass* super_klass = super();
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   743
  if (super_klass != NULL) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   744
    if (super_klass->is_interface()) {  // check if super class is an interface
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
      ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
      Exceptions::fthrow(
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
        THREAD_AND_LOCATION,
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
   748
        vmSymbols::java_lang_IncompatibleClassChangeError(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
        "class %s has interface %s as super class",
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   750
        external_name(),
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   751
        super_klass->external_name()
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
      );
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
      return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   756
    InstanceKlass* ik_super = InstanceKlass::cast(super_klass);
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   757
    ik_super->link_class_impl(CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
  // 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
   761
  Array<InstanceKlass*>* interfaces = local_interfaces();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
  int num_interfaces = interfaces->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
  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
   764
    InstanceKlass* interk = interfaces->at(index);
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   765
    interk->link_class_impl(CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
  // 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
   769
  if (is_linked()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   770
    return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   771
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   772
3575
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   773
  // 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
   774
  // the verification time
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   775
  PerfClassTraceTime vmtimer(ClassLoader::perf_class_link_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   776
                             ClassLoader::perf_class_link_selftime(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   777
                             ClassLoader::perf_classes_linked(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   778
                             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
   779
                             jt->get_thread_stat()->perf_timers_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   780
                             PerfClassTraceTime::CLASS_LINK);
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   781
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
  // verification & rewriting
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
  {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   784
    HandleMark hm(THREAD);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   785
    Handle h_init_lock(THREAD, init_lock());
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
   786
    ObjectLocker ol(h_init_lock, THREAD, h_init_lock() != NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
    // rewritten will have been set if loader constraint error found
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
    // on an earlier link attempt
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
    // don't verify or rewrite if already rewritten
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   790
    //
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   791
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   792
    if (!is_linked()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   793
      if (!is_rewritten()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
        {
51697
49e1b21d9878 8210470: Remove unused Verifier::verify() Verifier::Mode argument
hseigel
parents: 51543
diff changeset
   795
          bool verify_ok = verify_code(THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
          if (!verify_ok) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
            return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
        // Just in case a side-effect of verify linked this class already
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
        // (which can sometimes happen since the verifier loads classes
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
        // using custom class loaders, which are free to initialize things)
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   804
        if (is_linked()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
          return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
489c9b5090e2 Initial load
duke
parents:
diff changeset
   808
        // also sets rewritten
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   809
        rewrite_class(CHECK_false);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   810
      } else if (is_shared()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   811
        SystemDictionaryShared::check_verification_constraints(this, CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   814
      // relocate jsrs and link methods after they are all rewritten
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   815
      link_methods(CHECK_false);
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   816
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
      // Initialize the vtable and interface table after
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
      // methods have been rewritten since rewrite may
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   819
      // fabricate new Method*s.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
      // also does loader constraint checking
39714
976b97b59d87 8153312: Constrain AppCDS behavior
jiangli
parents: 39713
diff changeset
   821
      //
976b97b59d87 8153312: Constrain AppCDS behavior
jiangli
parents: 39713
diff changeset
   822
      // initialize_vtable and initialize_itable need to be rerun for
976b97b59d87 8153312: Constrain AppCDS behavior
jiangli
parents: 39713
diff changeset
   823
      // 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
   824
      ClassLoaderData * loader_data = class_loader_data();
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   825
      if (!(is_shared() &&
39714
976b97b59d87 8153312: Constrain AppCDS behavior
jiangli
parents: 39713
diff changeset
   826
            loader_data->is_the_null_class_loader_data())) {
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   827
        vtable().initialize_vtable(true, CHECK_false);
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   828
        itable().initialize_itable(true, CHECK_false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
#ifdef ASSERT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
      else {
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   832
        vtable().verify(tty, true);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
        // In case itable verification is ever added.
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
   834
        // itable().verify(tty, true);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   835
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
#endif
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   837
      set_init_state(linked);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
      if (JvmtiExport::should_post_class_prepare()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   839
        Thread *thread = THREAD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   840
        assert(thread->is_Java_thread(), "thread->is_Java_thread()");
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   841
        JvmtiExport::post_class_prepare((JavaThread *) thread, this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   842
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
  return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   846
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   847
489c9b5090e2 Initial load
duke
parents:
diff changeset
   848
// Rewrite the byte codes of all of the methods of a class.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   849
// The rewriter must be called exactly once. Rewriting must happen after
489c9b5090e2 Initial load
duke
parents:
diff changeset
   850
// 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
   851
void InstanceKlass::rewrite_class(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   852
  assert(is_loaded(), "must be loaded");
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   853
  if (is_rewritten()) {
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   854
    assert(is_shared(), "rewriting an unshared class?");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   855
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   856
  }
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   857
  Rewriter::rewrite(this, CHECK);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
   858
  set_rewritten();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   859
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   860
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   861
// 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
   862
// 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
   863
// 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
   864
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
   865
  int len = methods()->length();
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   866
  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
   867
    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
   868
b31d40895bbb 8005494: SIGSEGV in Rewriter::relocate_and_link() when testing Weblogic with CompressedOops and KlassPtrs
coleenp
parents: 15097
diff changeset
   869
    // 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
   870
    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
   871
  }
9971
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   872
}
d496ecd7b9de 7033141: assert(has_cp_cache(i)) failed: oob
coleenp
parents: 8875
diff changeset
   873
27402
5c4675ddc00c 8043275: Fix interface initialization for default methods.
acorn
parents: 26558
diff changeset
   874
// Eagerly initialize superinterfaces that declare default methods (concrete instance: any access)
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   875
void InstanceKlass::initialize_super_interfaces(TRAPS) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   876
  assert (has_nonstatic_concrete_methods(), "caller should have checked this");
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   877
  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
   878
    InstanceKlass* ik = local_interfaces()->at(i);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   879
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   880
    // 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
   881
    // 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
   882
    // 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
   883
    if (ik->has_nonstatic_concrete_methods()) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   884
      ik->initialize_super_interfaces(CHECK);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   885
    }
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
    // 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
   888
    if (ik->should_be_initialized() && ik->declares_nonstatic_concrete_methods()) {
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   889
      ik->initialize(CHECK);
27402
5c4675ddc00c 8043275: Fix interface initialization for default methods.
acorn
parents: 26558
diff changeset
   890
    }
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
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   894
void InstanceKlass::initialize_impl(TRAPS) {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   895
  HandleMark hm(THREAD);
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
   896
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   897
  // Make sure klass is linked (verified) before initialization
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
  // 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
   899
  link_class(CHECK);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   900
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   901
  DTRACE_CLASSINIT_PROBE(required, -1);
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   902
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   903
  bool wait = false;
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   904
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   905
  // refer to the JVM book page 47 for description of steps
489c9b5090e2 Initial load
duke
parents:
diff changeset
   906
  // Step 1
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
   907
  {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   908
    Handle h_init_lock(THREAD, init_lock());
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
   909
    ObjectLocker ol(h_init_lock, THREAD, h_init_lock() != NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   910
489c9b5090e2 Initial load
duke
parents:
diff changeset
   911
    Thread *self = THREAD; // it's passed the current thread
489c9b5090e2 Initial load
duke
parents:
diff changeset
   912
489c9b5090e2 Initial load
duke
parents:
diff changeset
   913
    // Step 2
489c9b5090e2 Initial load
duke
parents:
diff changeset
   914
    // If we were to use wait() instead of waitInterruptibly() then
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
    // we might end up throwing IE from link/symbol resolution sites
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
    // 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
   917
    while(is_being_initialized() && !is_reentrant_initialization(self)) {
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   918
        wait = true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
      ol.waitUninterruptibly(CHECK);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
    // Step 3
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   923
    if (is_being_initialized() && is_reentrant_initialization(self)) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   924
      DTRACE_CLASSINIT_PROBE_WAIT(recursive, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
      return;
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   926
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
    // Step 4
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   929
    if (is_initialized()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   930
      DTRACE_CLASSINIT_PROBE_WAIT(concurrent, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   931
      return;
5089
0cce506a0158 6935224: Adding new DTrace probes to work with Palantir
fparain
parents: 4584
diff changeset
   932
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
    // Step 5
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   935
    if (is_in_error_state()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   936
      DTRACE_CLASSINIT_PROBE_WAIT(erroneous, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
      ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
      const char* desc = "Could not initialize class ";
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   939
      const char* className = external_name();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
      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
   941
      char* message = NEW_RESOURCE_ARRAY(char, msglen);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
      if (NULL == message) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
        // 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
   944
          THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), className);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
      } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
        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
   947
          THROW_MSG(vmSymbols::java_lang_NoClassDefFoundError(), message);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   949
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   950
489c9b5090e2 Initial load
duke
parents:
diff changeset
   951
    // Step 6
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   952
    set_init_state(being_initialized);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   953
    set_init_thread(self);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
  // Step 7
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   957
  // 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
   958
  // interfaces.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   959
  if (!is_interface()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   960
    Klass* super_klass = super();
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   961
    if (super_klass != NULL && super_klass->should_be_initialized()) {
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   962
      super_klass->initialize(THREAD);
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   963
    }
41669
2091069b6851 8081800: AbstractMethodError when evaluating a private method in an interface via debugger
dholmes
parents: 41293
diff changeset
   964
    // 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
   965
    // 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
   966
    // 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
   967
    // having a superinterface that declares, non-static, concrete methods
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   968
    if (!HAS_PENDING_EXCEPTION && has_nonstatic_concrete_methods()) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   969
      initialize_super_interfaces(THREAD);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   970
    }
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
    // If any exceptions, complete abruptly, throwing the same exception as above.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   973
    if (HAS_PENDING_EXCEPTION) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   974
      Handle e(THREAD, PENDING_EXCEPTION);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   975
      CLEAR_PENDING_EXCEPTION;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   976
      {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   977
        EXCEPTION_MARK;
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   978
        // Locks object, set state, and notify all waiting threads
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   979
        set_initialization_state_and_notify(initialization_error, THREAD);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
   980
        CLEAR_PENDING_EXCEPTION;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   981
      }
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   982
      DTRACE_CLASSINIT_PROBE_WAIT(super__failed, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   983
      THROW_OOP(e());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   984
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   985
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   986
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
   987
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
   988
  // Look for aot compiled methods for this klass, including class initializer.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   989
  AOTLoader::load_for_klass(this, THREAD);
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
   990
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   991
  // Step 8
489c9b5090e2 Initial load
duke
parents:
diff changeset
   992
  {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   993
    assert(THREAD->is_Java_thread(), "non-JavaThread in initialize_impl");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   994
    JavaThread* jt = (JavaThread*)THREAD;
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
   995
    DTRACE_CLASSINIT_PROBE_WAIT(clinit, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   996
    // Timer includes any side effects of class initialization (resolution,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   997
    // 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
   998
    PerfClassTraceTime timer(ClassLoader::perf_class_init_time(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
   999
                             ClassLoader::perf_class_init_selftime(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
  1000
                             ClassLoader::perf_classes_inited(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
  1001
                             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
  1002
                             jt->get_thread_stat()->perf_timers_addr(),
224791e7ecab 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 2343
diff changeset
  1003
                             PerfClassTraceTime::CLASS_CLINIT);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1004
    call_class_initializer(THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1005
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1006
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1007
  // Step 9
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1008
  if (!HAS_PENDING_EXCEPTION) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1009
    set_initialization_state_and_notify(fully_initialized, CHECK);
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
  1010
    {
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
  1011
      debug_only(vtable().verify(tty, true);)
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1012
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1013
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1014
  else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1015
    // Step 10 and 11
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1016
    Handle e(THREAD, PENDING_EXCEPTION);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1017
    CLEAR_PENDING_EXCEPTION;
22897
77e1024a4a14 4505697: nsk/jdi/ExceptionEvent/_itself_/exevent006 and exevent008 tests fail with InvocationTargetException
jbachorik
parents: 22881
diff changeset
  1018
    // 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
  1019
    // 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
  1020
    JvmtiExport::clear_detected_exception((JavaThread*)THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1021
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1022
      EXCEPTION_MARK;
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1023
      set_initialization_state_and_notify(initialization_error, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1024
      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
  1025
      // 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
  1026
      // 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
  1027
      JvmtiExport::clear_detected_exception((JavaThread*)THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1028
    }
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1029
    DTRACE_CLASSINIT_PROBE_WAIT(error, -1, wait);
4571
80b553bddc26 6914300: ciEnv should export all well known classes
never
parents: 4094
diff changeset
  1030
    if (e->is_a(SystemDictionary::Error_klass())) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1031
      THROW_OOP(e());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1032
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1033
      JavaCallArguments args(e);
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  1034
      THROW_ARG(vmSymbols::java_lang_ExceptionInInitializerError(),
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  1035
                vmSymbols::throwable_void_signature(),
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1036
                &args);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1037
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1038
  }
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1039
  DTRACE_CLASSINIT_PROBE_WAIT(end, -1, wait);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1040
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1041
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1042
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1043
void InstanceKlass::set_initialization_state_and_notify(ClassState state, TRAPS) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1044
  Handle h_init_lock(THREAD, init_lock());
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
  1045
  if (h_init_lock() != NULL) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1046
    ObjectLocker ol(h_init_lock, THREAD);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1047
    set_init_state(state);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1048
    fence_and_clear_init_lock();
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
  1049
    ol.notify_all(CHECK);
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
  1050
  } else {
46562
6608152658ca 8182720: In InstanceKlass.cpp, get init_lock from handle
hseigel
parents: 46560
diff changeset
  1051
    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
  1052
    set_init_state(state);
41293
871b2f487dc0 8163969: Cyclic interface initialization causes JVM crash
coleenp
parents: 41183
diff changeset
  1053
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1054
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1055
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
  1056
Klass* InstanceKlass::implementor() 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
  1057
  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
  1058
  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
  1059
  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
  1060
    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
  1061
  } 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
  1062
    return *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
  1063
  }
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
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
  1067
  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
  1068
  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
  1069
  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
  1070
  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
  1071
  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
  1072
    *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
  1073
  }
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
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
  1077
  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
  1078
  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
  1079
  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
  1080
    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
  1081
  } 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
  1082
    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
  1083
  } 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
  1084
    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
  1085
  }
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
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1088
// 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
  1089
// 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
  1090
// 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
  1091
// 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
  1092
//   NULL                  - no implementor
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1093
//   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
  1094
//   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
  1095
//
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1096
// The _implementor field only exists for interfaces.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1097
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
  1098
  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
  1099
  assert(is_interface(), "not interface");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1100
  // Filter out my subinterfaces.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1101
  // (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
  1102
  if (InstanceKlass::cast(k)->is_interface()) return;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1103
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1104
  // Filter out subclasses whose supers already implement me.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1105
  // (Note: CHA must walk subclasses of direct implementors
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1106
  // in order to locate indirect implementors.)
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  1107
  Klass* sk = k->super();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1108
  if (sk != NULL && InstanceKlass::cast(sk)->implements_interface(this))
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1109
    // We only need to check one immediate superclass, since the
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1110
    // implements_interface query looks at transitive_interfaces.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1111
    // Any supers of the super have the same (or fewer) transitive_interfaces.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1112
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1113
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1114
  Klass* ik = implementor();
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1115
  if (ik == NULL) {
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1116
    set_implementor(k);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1117
  } 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
  1118
    // 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
  1119
    // more than one implementors.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1120
    set_implementor(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1121
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1122
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1123
  // The implementor also implements the transitive_interfaces
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1124
  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
  1125
    InstanceKlass::cast(local_interfaces()->at(index))->add_implementor(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1126
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1127
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1128
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1129
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
  1130
  if (is_interface()) {
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1131
    set_implementor(NULL);
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  1132
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1133
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1134
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1135
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1136
void InstanceKlass::process_interfaces(Thread *thread) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1137
  // link this class into the implementors list of every interface it implements
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1138
  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
  1139
    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
  1140
    InstanceKlass* interf = InstanceKlass::cast(local_interfaces()->at(i));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1141
    assert(interf->is_interface(), "expected interface");
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  1142
    interf->add_implementor(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1143
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1144
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1145
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1146
bool InstanceKlass::can_be_primary_super_slow() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1147
  if (is_interface())
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1148
    return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1149
  else
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1150
    return Klass::can_be_primary_super_slow();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1151
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1152
49948
ff8dbb56740a 8200466: Revisit the setting of _transitive_interfaces in InstanceKlass
ccheung
parents: 49824
diff changeset
  1153
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
  1154
                                                               Array<InstanceKlass*>* transitive_interfaces) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1155
  // The secondaries are the implemented interfaces.
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1156
  Array<InstanceKlass*>* interfaces = transitive_interfaces;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1157
  int num_secondaries = num_extra_slots + interfaces->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1158
  if (num_secondaries == 0) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1159
    // Must share this for correct bootstrapping!
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1160
    set_secondary_supers(Universe::the_empty_klass_array());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1161
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1162
  } else if (num_extra_slots == 0) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1163
    // 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
  1164
    // 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
  1165
    // 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
  1166
    // 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
  1167
    // (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
  1168
    set_secondary_supers((Array<Klass*>*)(address)interfaces);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1169
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1170
  } else {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1171
    // 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
  1172
    // into the secondary super list with extra slots.
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1173
    GrowableArray<Klass*>* secondaries = new GrowableArray<Klass*>(interfaces->length());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1174
    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
  1175
      secondaries->push(interfaces->at(i));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1176
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1177
    return secondaries;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1178
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1179
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1180
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1181
bool InstanceKlass::compute_is_subtype_of(Klass* k) {
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1182
  if (k->is_interface()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1183
    return implements_interface(k);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1184
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1185
    return Klass::compute_is_subtype_of(k);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1186
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1187
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1188
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1189
bool InstanceKlass::implements_interface(Klass* k) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1190
  if (this == k) return true;
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1191
  assert(k->is_interface(), "should be an interface class");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1192
  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
  1193
    if (transitive_interfaces()->at(i) == k) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1194
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1195
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1196
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1197
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1198
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1199
21768
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1200
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
  1201
  // Verify direct super interface
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1202
  if (this == k) return true;
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1203
  assert(k->is_interface(), "should be an interface class");
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1204
  for (int i = 0; i < local_interfaces()->length(); i++) {
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1205
    if (local_interfaces()->at(i) == k) {
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1206
      return true;
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1207
    }
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
  return false;
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1210
}
b7dba4cde1c6 8026065: InterfaceMethodref for invokespecial must name a direct superinterface
hseigel
parents: 21581
diff changeset
  1211
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1212
objArrayOop InstanceKlass::allocate_objArray(int n, int length, TRAPS) {
50304
d5331b94f821 8203881: Print erroneous size in NegativeArraySizeException
goetz
parents: 49948
diff changeset
  1213
  if (length < 0)  {
d5331b94f821 8203881: Print erroneous size in NegativeArraySizeException
goetz
parents: 49948
diff changeset
  1214
    THROW_MSG_0(vmSymbols::java_lang_NegativeArraySizeException(), err_msg("%d", length));
d5331b94f821 8203881: Print erroneous size in NegativeArraySizeException
goetz
parents: 49948
diff changeset
  1215
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1216
  if (length > arrayOopDesc::max_array_length(T_OBJECT)) {
3576
4ceec8fb3e18 6850957: Honor -XX:OnOutOfMemoryError when array size exceeds VM limit
martin
parents: 3575
diff changeset
  1217
    report_java_out_of_memory("Requested array size exceeds VM limit");
12114
9a825a536095 7123170: JCK vm/jvmti/ResourceExhausted/resexh001/resexh00101/ tests fails since 7u4 b02
sspitsyn
parents: 11407
diff changeset
  1218
    JvmtiExport::post_array_size_exhausted();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1219
    THROW_OOP_0(Universe::out_of_memory_error_array_size());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1220
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1221
  int size = objArrayOopDesc::object_size(length);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1222
  Klass* ak = array_klass(n, CHECK_NULL);
50882
80abf702eed8 8205683: Refactor heap allocation to separate concerns
eosterlund
parents: 50800
diff changeset
  1223
  objArrayOop o = (objArrayOop)Universe::heap()->array_allocate(ak, size, length,
80abf702eed8 8205683: Refactor heap allocation to separate concerns
eosterlund
parents: 50800
diff changeset
  1224
                                                                /* do_zero */ true, CHECK_NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1225
  return o;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1226
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1227
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1228
instanceOop InstanceKlass::register_finalizer(instanceOop i, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1229
  if (TraceFinalizerRegistration) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1230
    tty->print("Registered ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1231
    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
  1232
    tty->print_cr(" (" INTPTR_FORMAT ") as finalizable", p2i(i));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1233
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1234
  instanceHandle h_i(THREAD, i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1235
  // Pass the handle as argument, JavaCalls::call expects oop as jobjects
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1236
  JavaValue result(T_VOID);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1237
  JavaCallArguments args(h_i);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1238
  methodHandle mh (THREAD, Universe::finalizer_register_method());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1239
  JavaCalls::call(&result, mh, &args, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1240
  return h_i();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1241
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1242
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1243
instanceOop InstanceKlass::allocate_instance(TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1244
  bool has_finalizer_flag = has_finalizer(); // Query before possible GC
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1245
  int size = size_helper();  // Query before forming handle.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1246
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1247
  instanceOop i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1248
50882
80abf702eed8 8205683: Refactor heap allocation to separate concerns
eosterlund
parents: 50800
diff changeset
  1249
  i = (instanceOop)Universe::heap()->obj_allocate(this, size, CHECK_NULL);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1250
  if (has_finalizer_flag && !RegisterFinalizersAtInit) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1251
    i = register_finalizer(i, CHECK_NULL);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1252
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1253
  return i;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1254
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1255
49393
93fe2fc5c093 8199472: Fix non-PCH build after JDK-8199319
simonis
parents: 49360
diff changeset
  1256
instanceHandle InstanceKlass::allocate_instance_handle(TRAPS) {
93fe2fc5c093 8199472: Fix non-PCH build after JDK-8199319
simonis
parents: 49360
diff changeset
  1257
  return instanceHandle(THREAD, allocate_instance(THREAD));
93fe2fc5c093 8199472: Fix non-PCH build after JDK-8199319
simonis
parents: 49360
diff changeset
  1258
}
93fe2fc5c093 8199472: Fix non-PCH build after JDK-8199319
simonis
parents: 49360
diff changeset
  1259
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1260
void InstanceKlass::check_valid_for_instantiation(bool throwError, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1261
  if (is_interface() || is_abstract()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1262
    ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1263
    THROW_MSG(throwError ? vmSymbols::java_lang_InstantiationError()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1264
              : vmSymbols::java_lang_InstantiationException(), external_name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1265
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1266
  if (this == SystemDictionary::Class_klass()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1267
    ResourceMark rm(THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1268
    THROW_MSG(throwError ? vmSymbols::java_lang_IllegalAccessError()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1269
              : vmSymbols::java_lang_IllegalAccessException(), external_name());
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1270
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1271
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1272
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1273
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
  1274
  // Need load-acquire for lock-free read
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1275
  if (array_klasses_acquire() == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1276
    if (or_null) return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1277
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1278
    ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1279
    JavaThread *jt = (JavaThread *)THREAD;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1280
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1281
      // Atomic creation of array_klasses
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1282
      MutexLocker mc(Compile_lock, THREAD);   // for vtables
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1283
      MutexLocker ma(MultiArray_lock, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1284
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1285
      // Check if update has already taken place
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1286
      if (array_klasses() == NULL) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1287
        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
  1288
        // use 'release' to pair with lock-free load
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1289
        release_set_array_klasses(k);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1290
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1291
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1292
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1293
  // _this will always be set at this point
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1294
  ObjArrayKlass* oak = (ObjArrayKlass*)array_klasses();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1295
  if (or_null) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1296
    return oak->array_klass_or_null(n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1297
  }
27680
8ecc0871c18e 8064811: Use THREAD instead of CHECK_NULL in return statements
stefank
parents: 27435
diff changeset
  1298
  return oak->array_klass(n, THREAD);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1299
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1300
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1301
Klass* InstanceKlass::array_klass_impl(bool or_null, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1302
  return array_klass_impl(or_null, 1, THREAD);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1303
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1304
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1305
static int call_class_initializer_counter = 0;   // for debugging
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1306
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  1307
Method* InstanceKlass::class_initializer() const {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1308
  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
  1309
      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
  1310
  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
  1311
    return clinit;
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8297
diff changeset
  1312
  }
8797d788a4f1 6845426: non-static <clinit> method with no args is called during the class initialization process
kamg
parents: 8297
diff changeset
  1313
  return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1314
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1315
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1316
void InstanceKlass::call_class_initializer(TRAPS) {
14477
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1317
  if (ReplayCompiles &&
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1318
      (ReplaySuppressInitializers == 1 ||
46630
75aa3e39d02c 8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents: 46562
diff changeset
  1319
       (ReplaySuppressInitializers >= 2 && class_loader() != NULL))) {
14477
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1320
    // 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
  1321
    return;
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1322
  }
95e66ea71f71 6830717: replay of compilations would help with debugging
minqi
parents: 14385
diff changeset
  1323
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1324
  methodHandle h_method(THREAD, class_initializer());
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1325
  assert(!is_initialized(), "we cannot initialize twice");
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1326
  LogTarget(Info, class, init) lt;
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1327
  if (lt.is_enabled()) {
34628
6d08ec72803b 8142976: Reimplement TraceClassInitialization with Unified Logging
mockner
parents: 33638
diff changeset
  1328
    ResourceMark rm;
46701
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1329
    LogStream ls(lt);
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1330
    ls.print("%d Initializing ", call_class_initializer_counter++);
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1331
    name()->print_value_on(&ls);
f559541c0daa 8181917: Refactor UL LogStreams to avoid using resource area
stuefe
parents: 46697
diff changeset
  1332
    ls.print_cr("%s (" INTPTR_FORMAT ")", h_method() == NULL ? "(no method)" : "", p2i(this));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1333
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1334
  if (h_method() != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1335
    JavaCallArguments args; // No arguments
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1336
    JavaValue result(T_VOID);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1337
    JavaCalls::call(&result, h_method, &args, CHECK); // Static call (no args)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1338
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1339
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1340
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1341
33593
60764a78fa5c 8140274: methodHandles and constantPoolHandles should be passed as const references
coleenp
parents: 33576
diff changeset
  1342
void InstanceKlass::mask_for(const methodHandle& method, int bci,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1343
  InterpreterOopMap* entry_for) {
38937
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1344
  // 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
  1345
  // Lock-free access requires load_acquire.
6a0c42c40cd1 8188220: Remove Atomic::*_ptr() uses and overloads from hotspot
coleenp
parents: 47580
diff changeset
  1346
  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
  1347
  if (oop_map_cache == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1348
    MutexLocker x(OopMapCacheAlloc_lock);
38937
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1349
    // 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
  1350
    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
  1351
      oop_map_cache = new OopMapCache();
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1352
      // 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
  1353
      OrderAccess::release_store(&_oop_map_cache, oop_map_cache);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1354
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1355
  }
38937
2bf3c37c4841 8154750: Add missing OrderAccess operations to ClassLoaderData lock-free data structures
dholmes
parents: 38259
diff changeset
  1356
  // _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
  1357
  oop_map_cache->lookup(method, bci, entry_for);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1358
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1359
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1360
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1361
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
  1362
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1363
    Symbol* f_name = fs.name();
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1364
    Symbol* f_sig  = fs.signature();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1365
    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
  1366
      fd->reinitialize(const_cast<InstanceKlass*>(this), fs.index());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1367
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1368
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1369
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1370
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1371
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1372
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1373
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1374
Klass* InstanceKlass::find_interface_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1375
  const int n = local_interfaces()->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1376
  for (int i = 0; i < n; i++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1377
    Klass* intf1 = local_interfaces()->at(i);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1378
    assert(intf1->is_interface(), "just checking type");
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1379
    // search for field in current interface
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1380
    if (InstanceKlass::cast(intf1)->find_local_field(name, sig, fd)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1381
      assert(fd->is_static(), "interface field must be static");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1382
      return intf1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1383
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1384
    // search for field in direct superinterfaces
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1385
    Klass* intf2 = InstanceKlass::cast(intf1)->find_interface_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1386
    if (intf2 != NULL) return intf2;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1387
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1388
  // otherwise field lookup fails
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1389
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1390
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1391
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1392
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1393
Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, fieldDescriptor* fd) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1394
  // search order according to newest JVM spec (5.4.3.2, p.167).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1395
  // 1) search for field in current klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1396
  if (find_local_field(name, sig, fd)) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1397
    return const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1398
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1399
  // 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
  1400
  { Klass* intf = find_interface_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1401
    if (intf != NULL) return intf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1402
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1403
  // 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
  1404
  { Klass* supr = super();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1405
    if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1406
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1407
  // 4) otherwise field lookup fails
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1408
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1409
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1410
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1411
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1412
Klass* InstanceKlass::find_field(Symbol* name, Symbol* sig, bool is_static, fieldDescriptor* fd) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1413
  // search order according to newest JVM spec (5.4.3.2, p.167).
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1414
  // 1) search for field in current klass
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1415
  if (find_local_field(name, sig, fd)) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1416
    if (fd->is_static() == is_static) return const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1417
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1418
  // 2) search for field recursively in direct superinterfaces
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1419
  if (is_static) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1420
    Klass* intf = find_interface_field(name, sig, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1421
    if (intf != NULL) return intf;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1422
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1423
  // 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
  1424
  { Klass* supr = super();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1425
    if (supr != NULL) return InstanceKlass::cast(supr)->find_field(name, sig, is_static, fd);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1426
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1427
  // 4) otherwise field lookup fails
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1428
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1429
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1430
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1431
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1432
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
  1433
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1434
    if (fs.offset() == offset) {
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  1435
      fd->reinitialize(const_cast<InstanceKlass*>(this), fs.index());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1436
      if (fd->is_static() == is_static) return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1437
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1438
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1439
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1440
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1441
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1442
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1443
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
  1444
  Klass* klass = const_cast<InstanceKlass*>(this);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1445
  while (klass != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1446
    if (InstanceKlass::cast(klass)->find_local_field_from_offset(offset, is_static, fd)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1447
      return true;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1448
    }
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  1449
    klass = klass->super();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1450
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1451
  return false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1452
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1453
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1454
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1455
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
  1456
  // 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
  1457
  // 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
  1458
  if (!is_loaded()) {
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1459
    return;
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1460
  }
e41df2fc6e87 8042727: nsk/jdb/unwatch/unwatch001 crash in InstanceKlass::methods_do(void (*)(Method*))
coleenp
parents: 24424
diff changeset
  1461
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1462
  int len = methods()->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1463
  for (int index = 0; index < len; index++) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1464
    Method* m = methods()->at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1465
    assert(m->is_method(), "must be method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1466
    f(m);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1467
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1468
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1469
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  1470
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1471
void InstanceKlass::do_local_static_fields(FieldClosure* cl) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1472
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1473
    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
  1474
      fieldDescriptor& fd = fs.field_descriptor();
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1475
      cl->do_field(&fd);
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1476
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1477
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1478
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1479
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1480
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  1481
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
  1482
  for (JavaFieldStream fs(this); !fs.done(); fs.next()) {
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1483
    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
  1484
      fieldDescriptor& fd = fs.field_descriptor();
23872
536c66fc43d3 8028497: SIGSEGV at ClassLoaderData::oops_do(OopClosure*, KlassClosure*, bool)
coleenp
parents: 23515
diff changeset
  1485
      f(&fd, mirror, CHECK);
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1486
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1487
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1488
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1489
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1490
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1491
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
  1492
  return a[0] - b[0];
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1493
}
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1494
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1495
void InstanceKlass::do_nonstatic_fields(FieldClosure* cl) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1496
  InstanceKlass* super = superklass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1497
  if (super != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1498
    super->do_nonstatic_fields(cl);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1499
  }
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1500
  fieldDescriptor fd;
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1501
  int length = java_fields_count();
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1502
  // In DebugInfo nonstatic fields are sorted by offset.
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12587
diff changeset
  1503
  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
  1504
  int j = 0;
10546
e79347eebbc5 7086585: make Java field injection more flexible
never
parents: 10265
diff changeset
  1505
  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
  1506
    fd.reinitialize(this, i);
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1507
    if (!fd.is_static()) {
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1508
      fields_sorted[j + 0] = fd.offset();
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1509
      fields_sorted[j + 1] = i;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1510
      j += 2;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1511
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1512
  }
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1513
  if (j > 0) {
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1514
    length = j;
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1515
    // _sort_Fn is defined in growableArray.hpp.
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1516
    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
  1517
    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
  1518
      fd.reinitialize(this, fields_sorted[i + 1]);
217
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1519
      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
  1520
      cl->do_field(&fd);
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1521
    }
c646ef2f5d58 6667620: (Escape Analysis) fix deoptimization for scalar replaced objects
kvn
parents: 1
diff changeset
  1522
  }
27880
afb974a04396 8060074: os::free() takes MemoryTrackingLevel but doesn't need it
coleenp
parents: 27674
diff changeset
  1523
  FREE_C_HEAP_ARRAY(int, fields_sorted);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1524
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1525
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1526
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1527
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
  1528
  if (array_klasses() != NULL)
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13738
diff changeset
  1529
    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
  1530
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1531
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1532
void InstanceKlass::array_klasses_do(void f(Klass* k)) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1533
  if (array_klasses() != NULL)
13952
e3cf184080bc 8000213: NPG: Should have renamed arrayKlass and typeArrayKlass
coleenp
parents: 13738
diff changeset
  1534
    ArrayKlass::cast(array_klasses())->array_klasses_do(f);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1535
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1536
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1537
#ifdef ASSERT
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1538
static int linear_search(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1539
                         const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1540
                         const Symbol* signature) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1541
  const int len = methods->length();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1542
  for (int index = 0; index < len; index++) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1543
    const Method* const m = methods->at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1544
    assert(m->is_method(), "must be method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1545
    if (m->signature() == signature && m->name() == name) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1546
       return index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1547
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1548
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1549
  return -1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1550
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1551
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1552
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1553
static int binary_search(const Array<Method*>* methods, const Symbol* name) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1554
  int len = methods->length();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1555
  // methods are sorted, so do binary search
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1556
  int l = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1557
  int h = len - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1558
  while (l <= h) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1559
    int mid = (l + h) >> 1;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1560
    Method* m = methods->at(mid);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1561
    assert(m->is_method(), "must be method");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1562
    int res = m->name()->fast_compare(name);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1563
    if (res == 0) {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1564
      return mid;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1565
    } else if (res < 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1566
      l = mid + 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1567
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1568
      h = mid - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1569
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1570
  }
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1571
  return -1;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1572
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1573
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1574
// 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
  1575
Method* InstanceKlass::find_method(const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1576
                                   const Symbol* signature) const {
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1577
  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
  1578
}
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1579
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1580
Method* InstanceKlass::find_method_impl(const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1581
                                        const Symbol* signature,
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1582
                                        OverpassLookupMode overpass_mode,
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1583
                                        StaticLookupMode static_mode,
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1584
                                        PrivateLookupMode private_mode) const {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1585
  return InstanceKlass::find_method_impl(methods(),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1586
                                         name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1587
                                         signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1588
                                         overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1589
                                         static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1590
                                         private_mode);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1591
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1592
21913
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1593
// 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
  1594
// and skips over static methods
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1595
Method* InstanceKlass::find_instance_method(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1596
                                            const Symbol* name,
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1597
                                            const Symbol* signature,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1598
                                            PrivateLookupMode private_mode) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1599
  Method* const meth = InstanceKlass::find_method_impl(methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1600
                                                 name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1601
                                                 signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1602
                                                 find_overpass,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1603
                                                 skip_static,
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1604
                                                 private_mode);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1605
  assert(((meth == NULL) || !meth->is_static()),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1606
    "find_instance_method should have skipped statics");
21913
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1607
  return meth;
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1608
}
0e2fd7282ac6 8028438: static superclass method masks default methods
acorn
parents: 21768
diff changeset
  1609
28514
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1610
// find_instance_method looks up the name/signature in the local methods array
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1611
// and skips over static methods
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1612
Method* InstanceKlass::find_instance_method(const Symbol* name,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1613
                                            const Symbol* signature,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1614
                                            PrivateLookupMode private_mode) const {
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1615
  return InstanceKlass::find_instance_method(methods(), name, signature, private_mode);
28514
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1616
}
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1617
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1618
// 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
  1619
// and filters on the overpass, static and private flags
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1620
// This returns the first one found
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1621
// 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
  1622
// and one instance (private or not) with the same name/signature
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1623
Method* InstanceKlass::find_local_method(const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1624
                                         const Symbol* signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1625
                                         OverpassLookupMode overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1626
                                         StaticLookupMode static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1627
                                         PrivateLookupMode private_mode) const {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1628
  return InstanceKlass::find_method_impl(methods(),
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1629
                                         name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1630
                                         signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1631
                                         overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1632
                                         static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1633
                                         private_mode);
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1634
}
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1635
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1636
// 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
  1637
// and filters on the overpass, static and private flags
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1638
// This returns the first one found
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1639
// 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
  1640
// and one instance (private or not) with the same name/signature
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1641
Method* InstanceKlass::find_local_method(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1642
                                         const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1643
                                         const Symbol* signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1644
                                         OverpassLookupMode overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1645
                                         StaticLookupMode static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1646
                                         PrivateLookupMode private_mode) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1647
  return InstanceKlass::find_method_impl(methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1648
                                         name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1649
                                         signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1650
                                         overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1651
                                         static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1652
                                         private_mode);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1653
}
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1654
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1655
Method* InstanceKlass::find_method(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1656
                                   const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1657
                                   const Symbol* signature) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1658
  return InstanceKlass::find_method_impl(methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1659
                                         name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1660
                                         signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1661
                                         find_overpass,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1662
                                         find_static,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1663
                                         find_private);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1664
}
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1665
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1666
Method* InstanceKlass::find_method_impl(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1667
                                        const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1668
                                        const Symbol* signature,
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1669
                                        OverpassLookupMode overpass_mode,
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1670
                                        StaticLookupMode static_mode,
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1671
                                        PrivateLookupMode private_mode) {
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1672
  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
  1673
  return hit >= 0 ? methods->at(hit): NULL;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1674
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1675
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1676
// true if method matches signature and conforms to skipping_X conditions.
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1677
static bool method_matches(const Method* m,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1678
                           const Symbol* signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1679
                           bool skipping_overpass,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1680
                           bool skipping_static,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1681
                           bool skipping_private) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1682
  return ((m->signature() == signature) &&
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1683
    (!skipping_overpass || !m->is_overpass()) &&
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1684
    (!skipping_static || !m->is_static()) &&
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1685
    (!skipping_private || !m->is_private()));
28514
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1686
}
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1687
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1688
// Used directly for default_methods to find the index into the
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1689
// default_vtable_indices, and indirectly by find_method
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1690
// 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
  1691
// 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
  1692
// 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
  1693
// 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
  1694
// over an overpass method.
32189
5264b560ab1b 8087342: Crash in klassItable::initialize_itable_for_interface
acorn
parents: 31353
diff changeset
  1695
// 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
  1696
// 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
  1697
// 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
  1698
// 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
  1699
// is often necessary to skip private methods
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1700
int InstanceKlass::find_method_index(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1701
                                     const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1702
                                     const Symbol* signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1703
                                     OverpassLookupMode overpass_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1704
                                     StaticLookupMode static_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1705
                                     PrivateLookupMode private_mode) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1706
  const bool skipping_overpass = (overpass_mode == skip_overpass);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1707
  const bool skipping_static = (static_mode == skip_static);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1708
  const bool skipping_private = (private_mode == skip_private);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1709
  const int hit = binary_search(methods, name);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1710
  if (hit != -1) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1711
    const Method* const m = methods->at(hit);
28514
da53c1ffc837 8064524: Compiler code generation improvements
drchase
parents: 28365
diff changeset
  1712
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1713
    // 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
  1714
    // for common case, ignoring overpasses if requested.
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1715
    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
  1716
      return hit;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1717
    }
23999
22eb7be3d99d 8033150: invokestatic: IncompatibleClassChangeError trying to invoke static method from a parent in presence of conflicting defaults.
lfoltan
parents: 23873
diff changeset
  1718
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1719
    // search downwards through overloaded methods
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1720
    int i;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1721
    for (i = hit - 1; i >= 0; --i) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1722
        const Method* const m = methods->at(i);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1723
        assert(m->is_method(), "must be method");
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1724
        if (m->name() != name) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1725
          break;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1726
        }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1727
        if (method_matches(m, signature, skipping_overpass, skipping_static, skipping_private)) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1728
          return i;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1729
        }
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1730
    }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1731
    // search upwards
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1732
    for (i = hit + 1; i < methods->length(); ++i) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1733
        const Method* const m = methods->at(i);
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1734
        assert(m->is_method(), "must be method");
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1735
        if (m->name() != name) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1736
          break;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1737
        }
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1738
        if (method_matches(m, signature, skipping_overpass, skipping_static, skipping_private)) {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1739
          return i;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1740
        }
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1741
    }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1742
    // not found
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1743
#ifdef ASSERT
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1744
    const int index = (skipping_overpass || skipping_static || skipping_private) ? -1 :
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1745
      linear_search(methods, name, signature);
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1746
    assert(-1 == index, "binary search should have found entry %d", index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1747
#endif
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1748
  }
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1749
  return -1;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1750
}
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1751
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1752
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
  1753
  return find_method_by_name(methods(), name, end);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1754
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1755
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1756
int InstanceKlass::find_method_by_name(const Array<Method*>* methods,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1757
                                       const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1758
                                       int* end_ptr) {
14385
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1759
  assert(end_ptr != NULL, "just checking");
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1760
  int start = binary_search(methods, name);
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1761
  int end = start + 1;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1762
  if (start != -1) {
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1763
    while (start - 1 >= 0 && (methods->at(start - 1))->name() == name) --start;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1764
    while (end < methods->length() && (methods->at(end))->name() == name) ++end;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1765
    *end_ptr = end;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1766
    return start;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1767
  }
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1768
  return -1;
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1769
}
959bbcc16725 7200776: Implement default methods in interfaces
kamg
parents: 13952
diff changeset
  1770
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1771
// 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
  1772
// superclasses methods arrays, skipping any overpass methods in superclasses,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1773
// and possibly skipping private methods.
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1774
Method* InstanceKlass::uncached_lookup_method(const Symbol* name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1775
                                              const Symbol* signature,
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1776
                                              OverpassLookupMode overpass_mode,
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1777
                                              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
  1778
  OverpassLookupMode overpass_local_mode = overpass_mode;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1779
  const Klass* klass = this;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1780
  while (klass != NULL) {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1781
    Method* const method = InstanceKlass::cast(klass)->find_method_impl(name,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1782
                                                                        signature,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1783
                                                                        overpass_local_mode,
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1784
                                                                        find_static,
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  1785
                                                                        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
  1786
    if (method != NULL) {
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1787
      return method;
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1788
    }
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  1789
    klass = klass->super();
28731
f7339cba0a6a 8067480: Crash in klassItable::initialize_itable_for_interface when running vm.runtime.defmeth.StaticMethodsTest.
lfoltan
parents: 28365
diff changeset
  1790
    overpass_local_mode = skip_overpass;   // Always ignore overpass methods in superclasses
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1791
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1792
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1793
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1794
24828
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1795
#ifdef ASSERT
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1796
// 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
  1797
// one of the superclasses was redefined
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1798
bool InstanceKlass::has_redefined_this_or_super() const {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1799
  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
  1800
  while (klass != NULL) {
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  1801
    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
  1802
      return true;
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1803
    }
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  1804
    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
  1805
  }
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1806
  return false;
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1807
}
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1808
#endif
dd5406c950a1 6904403: assert(f == k-&gt;has_finalizer(),&quot;inconsistent has_finalizer&quot;) with debug VM
dsamersoff
parents: 24658
diff changeset
  1809
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1810
// 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
  1811
// Do NOT return private or static methods
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1812
Method* InstanceKlass::lookup_method_in_ordered_interfaces(Symbol* name,
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1813
                                                         Symbol* signature) const {
20396
0ed0e7aa1ed8 8026185: nsk/jvmit/GetMethodDeclaringClass/declcls001 failed
acorn
parents: 20391
diff changeset
  1814
  Method* m = NULL;
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1815
  if (default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1816
    m = find_method(default_methods(), name, signature);
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
  // Look up interfaces
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1819
  if (m == NULL) {
28731
f7339cba0a6a 8067480: Crash in klassItable::initialize_itable_for_interface when running vm.runtime.defmeth.StaticMethodsTest.
lfoltan
parents: 28365
diff changeset
  1820
    m = lookup_method_in_all_interfaces(name, signature, find_defaults);
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1821
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1822
  return m;
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1823
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  1824
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1825
// 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
  1826
// 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
  1827
// 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
  1828
Method* InstanceKlass::lookup_method_in_all_interfaces(Symbol* name,
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1829
                                                       Symbol* signature,
28731
f7339cba0a6a 8067480: Crash in klassItable::initialize_itable_for_interface when running vm.runtime.defmeth.StaticMethodsTest.
lfoltan
parents: 28365
diff changeset
  1830
                                                       DefaultsLookupMode defaults_mode) const {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  1831
  Array<InstanceKlass*>* all_ifs = transitive_interfaces();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1832
  int num_ifs = all_ifs->length();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1833
  InstanceKlass *ik = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1834
  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
  1835
    ik = all_ifs->at(i);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1836
    Method* m = ik->lookup_method(name, signature);
22232
26acfad336c0 8027804: JCK resolveMethod test fails expecting AbstractMethodError
hseigel
parents: 22221
diff changeset
  1837
    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
  1838
        ((defaults_mode != skip_defaults) || !m->is_default_method())) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1839
      return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1840
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1841
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1842
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1843
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1844
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1845
/* jni_id_for_impl for jfieldIds only */
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1846
JNIid* InstanceKlass::jni_id_for_impl(int offset) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1847
  MutexLocker ml(JfieldIdCreation_lock);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1848
  // Retry lookup after we got the lock
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1849
  JNIid* probe = jni_ids() == NULL ? NULL : jni_ids()->find(offset);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1850
  if (probe == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1851
    // Slow case, allocate new static field identifier
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1852
    probe = new JNIid(this, offset, jni_ids());
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1853
    set_jni_ids(probe);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1854
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1855
  return probe;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1856
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1857
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1858
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1859
/* jni_id_for for jfieldIds only */
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1860
JNIid* InstanceKlass::jni_id_for(int offset) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1861
  JNIid* probe = jni_ids() == NULL ? NULL : jni_ids()->find(offset);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1862
  if (probe == NULL) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1863
    probe = jni_id_for_impl(offset);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1864
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1865
  return probe;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1866
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1867
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1868
u2 InstanceKlass::enclosing_method_data(int offset) const {
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1869
  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
  1870
  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
  1871
    return 0;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1872
  }
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1873
  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
  1874
  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
  1875
    return 0;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1876
  }
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1877
  const int index = length - enclosing_method_attribute_size;
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1878
  assert(offset < enclosing_method_attribute_size, "invalid offset");
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  1879
  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
  1880
}
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1881
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1882
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
  1883
                                                 u2 method_index) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1884
  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
  1885
  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
  1886
  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
  1887
  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
  1888
    int index = length - enclosing_method_attribute_size;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  1889
    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
  1890
      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
  1891
    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
  1892
      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
  1893
  }
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  1894
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1895
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1896
// Lookup or create a jmethodID.
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1897
// 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
  1898
// 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
  1899
// and/or other cache consistency problems.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1900
//
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1901
jmethodID InstanceKlass::get_jmethod_id(const methodHandle& method_h) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1902
  size_t idnum = (size_t)method_h->method_idnum();
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1903
  jmethodID* jmeths = methods_jmethod_ids_acquire();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1904
  size_t length = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1905
  jmethodID id = NULL;
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1906
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1907
  // 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
  1908
  // 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
  1909
  // 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
  1910
  // 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
  1911
  // 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
  1912
  // 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
  1913
  // 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
  1914
  // 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
  1915
  // 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
  1916
  // 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
  1917
  // generally acquired in those two cases.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1918
  //
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1919
  // 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
  1920
  // 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
  1921
  // 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
  1922
  // 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
  1923
  // acquired when the RedefineClasses() API has been used.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1924
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1925
  if (jmeths != NULL) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1926
    // the cache already exists
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1927
    if (!idnum_can_increment()) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1928
      // 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
  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
      // 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
  1932
      if (Threads::number_of_threads() == 0 ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1933
          SafepointSynchronize::is_at_safepoint()) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1934
        // 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
  1935
        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
  1936
      } else {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1937
        MutexLocker ml(JmethodIdCreation_lock);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1938
        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
  1939
      }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1940
    }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1941
  }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1942
  // implied else:
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1943
  // we need to allocate a cache so default length and id values are good
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1944
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1945
  if (jmeths == NULL ||   // no cache yet
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1946
      length <= idnum ||  // cache is too short
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1947
      id == NULL) {       // cache doesn't contain entry
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1948
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1949
    // 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
  1950
    // 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
  1951
    // 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
  1952
    // 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
  1953
    // to free after the lock is dropped.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1954
    jmethodID  to_dealloc_id     = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1955
    jmethodID* to_dealloc_jmeths = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1956
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1957
    // may not allocate new_jmeths or use it if we allocate it
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1958
    jmethodID* new_jmeths = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1959
    if (length <= idnum) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1960
      // allocate a new cache that might be used
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1961
      size_t size = MAX2(idnum+1, (size_t)idnum_allocated_count());
13195
be27e1b6a4b9 6995781: Native Memory Tracking (Phase 1)
zgu
parents: 12587
diff changeset
  1962
      new_jmeths = NEW_C_HEAP_ARRAY(jmethodID, size+1, mtClass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1963
      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
  1964
      // 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
  1965
      new_jmeths[0] = (jmethodID)size;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1966
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1967
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1968
    // allocate a new jmethodID that might be used
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1969
    jmethodID new_id = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1970
    if (method_h->is_old() && !method_h->is_obsolete()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1971
      // 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
  1972
      Method* current_method = method_with_idnum((int)idnum);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1973
      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
  1974
      new_id = Method::make_jmethod_id(class_loader_data(), current_method);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1975
    } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1976
      // It is the current version of the method or an obsolete method,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1977
      // use the version passed in
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1978
      new_id = Method::make_jmethod_id(class_loader_data(), method_h());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1979
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1980
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1981
    if (Threads::number_of_threads() == 0 ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1982
        SafepointSynchronize::is_at_safepoint()) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1983
      // we're single threaded or at a safepoint - no locking needed
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1984
      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
  1985
                                          &to_dealloc_id, &to_dealloc_jmeths);
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  1986
    } else {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  1987
      MutexLocker ml(JmethodIdCreation_lock);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1988
      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
  1989
                                          &to_dealloc_id, &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
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1992
    // 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
  1993
    // 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
  1994
    if (to_dealloc_jmeths != NULL) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1995
      FreeHeap(to_dealloc_jmeths);
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1996
    }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  1997
    // 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
  1998
    if (to_dealloc_id != NULL) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  1999
      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
  2000
    }
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  2001
  }
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  2002
  return id;
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  2003
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2004
27478
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2005
// Figure out how many jmethodIDs haven't been allocated, and make
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2006
// sure space for them is pre-allocated.  This makes getting all
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2007
// method ids much, much faster with classes with more than 8
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2008
// methods, and has a *substantial* effect on performance with jvmti
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2009
// code that loads all jmethodIDs for all classes.
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2010
void InstanceKlass::ensure_space_for_methodids(int start_offset) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2011
  int new_jmeths = 0;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2012
  int length = methods()->length();
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2013
  for (int index = start_offset; index < length; index++) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2014
    Method* m = methods()->at(index);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2015
    jmethodID id = m->find_jmethod_id_or_null();
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2016
    if (id == NULL) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2017
      new_jmeths++;
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2018
    }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2019
  }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2020
  if (new_jmeths != 0) {
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2021
    Method::ensure_jmethod_ids(class_loader_data(), new_jmeths);
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2022
  }
0eedae0228ac 8062116: JVMTI GetClassMethods is Slow
jmanson
parents: 27471
diff changeset
  2023
}
222
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  2024
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2025
// 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
  2026
// 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
  2027
// 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
  2028
// the VMThread or have cache consistency issues.
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2029
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2030
jmethodID InstanceKlass::get_jmethod_id_fetch_or_update(
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2031
            size_t idnum, jmethodID new_id,
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2032
            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
  2033
            jmethodID** to_dealloc_jmeths_p) {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2034
  assert(new_id != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2035
  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
  2036
  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
  2037
  assert(Threads::number_of_threads() == 0 ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2038
         SafepointSynchronize::is_at_safepoint() ||
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2039
         JmethodIdCreation_lock->owned_by_self(), "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2040
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2041
  // 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
  2042
  jmethodID* jmeths = methods_jmethod_ids_acquire();
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2043
  jmethodID  id     = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2044
  size_t     length = 0;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2045
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2046
  if (jmeths == NULL ||                         // no cache yet
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2047
      (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
  2048
    if (jmeths != NULL) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2049
      // 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
  2050
      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
  2051
        new_jmeths[index+1] = jmeths[index+1];
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2052
      }
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2053
      *to_dealloc_jmeths_p = jmeths;  // save old cache for later delete
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2054
    }
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2055
    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
  2056
  } else {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2057
    // 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
  2058
    id = jmeths[idnum+1];
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2059
    *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
  2060
  }
3d1795325749 6453355: 4/4 new No_Safepoint_Verifier uses fail during GC
dcubed
parents: 220
diff changeset
  2061
  if (id == NULL) {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2062
    // 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
  2063
    // 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
  2064
    // 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
  2065
    // 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
  2066
    id = new_id;
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2067
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2068
    // 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
  2069
    // 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
  2070
    // in the cache.
47634
6a0c42c40cd1 8188220: Remove Atomic::*_ptr() uses and overloads from hotspot
coleenp
parents: 47580
diff changeset
  2071
    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
  2072
  } else {
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2073
    *to_dealloc_id_p = new_id; // save new id for later delete
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2074
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2075
  return id;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2076
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2077
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2078
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2079
// 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
  2080
// 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
  2081
//
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2082
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
  2083
       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
  2084
  assert(cache != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2085
  assert(length_p != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2086
  assert(id_p != NULL, "sanity check");
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2087
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2088
  // 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
  2089
  *length_p = (size_t)cache[0];
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2090
  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
  2091
    *id_p = NULL;
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2092
  } else {
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2093
    *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
  2094
  }
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2095
}
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2096
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2097
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2098
// 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
  2099
jmethodID InstanceKlass::jmethod_id_or_null(Method* method) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2100
  size_t idnum = (size_t)method->method_idnum();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2101
  jmethodID* jmeths = methods_jmethod_ids_acquire();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2102
  size_t length;                                // length assigned as debugging crumb
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2103
  jmethodID id = NULL;
3824
86e9e4b25bdf 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 3821
diff changeset
  2104
  if (jmeths != NULL &&                         // If there is a cache
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2105
      (length = (size_t)jmeths[0]) > idnum) {   // and if it is long enough,
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2106
    id = jmeths[idnum+1];                       // Look up the id (may be NULL)
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2107
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2108
  return id;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2109
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2110
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2111
inline DependencyContext InstanceKlass::dependencies() {
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2112
  DependencyContext dep_context(&_dep_context);
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2113
  return dep_context;
31037
01a5c5fa5681 8079205: CallSite dependency tracking is broken after sun.misc.Cleaner became automatically cleared
vlivanov
parents: 30227
diff changeset
  2114
}
01a5c5fa5681 8079205: CallSite dependency tracking is broken after sun.misc.Cleaner became automatically cleared
vlivanov
parents: 30227
diff changeset
  2115
36300
5b47f168b948 7177745: JSR292: Many Callsite relinkages cause target method to always run in interpreter mode
vlivanov
parents: 35917
diff changeset
  2116
int InstanceKlass::mark_dependent_nmethods(KlassDepChange& changes) {
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2117
  return dependencies().mark_dependent_nmethods(changes);
25492
d27050bdfb04 8049421: G1 Class Unloading after completing a concurrent mark cycle
stefank
parents: 25491
diff changeset
  2118
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2119
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2120
void InstanceKlass::add_dependent_nmethod(nmethod* nm) {
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2121
  dependencies().add_dependent_nmethod(nm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2122
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2123
33576
6dbde58b08a6 8058563: InstanceKlass::_dependencies list isn't cleared from empty nmethodBucket entries
stefank
parents: 33151
diff changeset
  2124
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
  2125
  dependencies().remove_dependent_nmethod(nm, delete_immediately);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2126
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2127
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2128
#ifndef PRODUCT
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2129
void InstanceKlass::print_dependent_nmethods(bool verbose) {
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2130
  dependencies().print_dependent_nmethods(verbose);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2131
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2132
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2133
bool InstanceKlass::is_dependent_nmethod(nmethod* nm) {
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2134
  return dependencies().is_dependent_nmethod(nm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2135
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2136
#endif //PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2137
49821
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2138
void InstanceKlass::clean_weak_instanceklass_links() {
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2139
  clean_implementors_list();
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2140
  clean_method_data();
33576
6dbde58b08a6 8058563: InstanceKlass::_dependencies list isn't cleared from empty nmethodBucket entries
stefank
parents: 33151
diff changeset
  2141
34195
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2142
  // 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
  2143
  DependencyContext dep_context(&_dep_context);
89011d12ebd3 8139595: MethodHandles::remove_dependent_nmethod is not MT safe
vlivanov
parents: 33638
diff changeset
  2144
  dep_context.expunge_stale_entries();
33576
6dbde58b08a6 8058563: InstanceKlass::_dependencies list isn't cleared from empty nmethodBucket entries
stefank
parents: 33151
diff changeset
  2145
}
6dbde58b08a6 8058563: InstanceKlass::_dependencies list isn't cleared from empty nmethodBucket entries
stefank
parents: 33151
diff changeset
  2146
49821
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2147
void InstanceKlass::clean_implementors_list() {
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2148
  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
  2149
  if (is_interface()) {
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  2150
    if (ClassUnloading) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2151
      Klass* impl = implementor();
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  2152
      if (impl != NULL) {
49821
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2153
        if (!impl->is_loader_alive()) {
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  2154
          // remove this guy
15873
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2155
          Klass** klass = adr_implementor();
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2156
          assert(klass != NULL, "null klass");
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2157
          if (klass != NULL) {
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2158
            *klass = NULL;
5ce4f526e0ba 8008750: [partfait] Null pointer deference in hotspot/src/share/vm/oops/instanceKlass.hpp
morris
parents: 15601
diff changeset
  2159
          }
12369
48fd3da4025c 7154670: The instanceKlass _implementors[] and _nof_implementors are not needed for non-interface klass.
jiangli
parents: 12233
diff changeset
  2160
        }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2161
      }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2162
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2163
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2164
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2165
49821
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2166
void InstanceKlass::clean_method_data() {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2167
  for (int m = 0; m < methods()->length(); m++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2168
    MethodData* mdo = methods()->at(m)->method_data();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2169
    if (mdo != NULL) {
49821
02c08e20d66c 8201537: Remove is_alive closure from Klass::is_loader_alive()
coleenp
parents: 49738
diff changeset
  2170
      mdo->clean_method_data(/*always_clean*/false);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2171
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2172
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2173
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2174
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2175
bool InstanceKlass::supers_have_passed_fingerprint_checks() {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2176
  if (java_super() != NULL && !java_super()->has_passed_fingerprint_check()) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2177
    ResourceMark rm;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2178
    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
  2179
    return false;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2180
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2181
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  2182
  Array<InstanceKlass*>* local_interfaces = this->local_interfaces();
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2183
  if (local_interfaces != NULL) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2184
    int length = local_interfaces->length();
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2185
    for (int i = 0; i < length; i++) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  2186
      InstanceKlass* intf = local_interfaces->at(i);
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2187
      if (!intf->has_passed_fingerprint_check()) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2188
        ResourceMark rm;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2189
        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
  2190
        return false;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2191
      }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2192
    }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2193
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2194
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2195
  return true;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2196
}
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2197
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2198
bool InstanceKlass::should_store_fingerprint(bool is_unsafe_anonymous) {
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2199
#if INCLUDE_AOT
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2200
  // 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
  2201
  if (CalculateClassFingerprint) {
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2202
    // (1) We are running AOT to generate a shared library.
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2203
    return true;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2204
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2205
  if (DumpSharedSpaces) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2206
    // (2) We are running -Xshare:dump to create a shared archive
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2207
    return true;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2208
  }
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  2209
  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
  2210
    // (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
  2211
    return true;
fc4cfca10556 8132547: [AOT] support invokedynamic instructions
dlong
parents: 47634
diff changeset
  2212
  }
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2213
#endif
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2214
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2215
  // 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
  2216
  // but do not store the 64-bit fingerprint to save space.
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2217
  return false;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2218
}
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2219
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2220
bool InstanceKlass::has_stored_fingerprint() const {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2221
#if INCLUDE_AOT
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2222
  return should_store_fingerprint() || is_shared();
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2223
#else
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2224
  return false;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2225
#endif
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
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2228
uint64_t InstanceKlass::get_stored_fingerprint() const {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2229
  address adr = adr_fingerprint();
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2230
  if (adr != NULL) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2231
    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
  2232
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2233
  return 0;
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
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2236
void InstanceKlass::store_fingerprint(uint64_t fingerprint) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2237
  address adr = adr_fingerprint();
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2238
  if (adr != NULL) {
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2239
    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
  2240
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2241
    ResourceMark rm;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2242
    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
  2243
  }
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42647
diff changeset
  2244
}
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2245
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2246
void InstanceKlass::metaspace_pointers_do(MetaspaceClosure* it) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2247
  Klass::metaspace_pointers_do(it);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2248
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2249
  if (log_is_enabled(Trace, cds)) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2250
    ResourceMark rm;
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2251
    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
  2252
  }
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2253
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2254
  it->push(&_annotations);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2255
  it->push((Klass**)&_array_klasses);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2256
  it->push(&_constants);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2257
  it->push(&_inner_classes);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2258
  it->push(&_array_name);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2259
#if INCLUDE_JVMTI
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2260
  it->push(&_previous_versions);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2261
#endif
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2262
  it->push(&_methods);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2263
  it->push(&_default_methods);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2264
  it->push(&_local_interfaces);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2265
  it->push(&_transitive_interfaces);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2266
  it->push(&_method_ordering);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2267
  it->push(&_default_vtable_indices);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2268
  it->push(&_fields);
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
  if (itable_length() > 0) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2271
    itableOffsetEntry* ioe = (itableOffsetEntry*)start_of_itable();
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2272
    int method_table_offset_in_words = ioe->offset()/wordSize;
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2273
    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
  2274
                         / itableOffsetEntry::size();
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2275
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2276
    for (int i = 0; i < nof_interfaces; i ++, ioe ++) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2277
      if (ioe->interface_klass() != NULL) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2278
        it->push(ioe->interface_klass_addr());
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2279
        itableMethodEntry* ime = ioe->first_method_entry(this);
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2280
        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
  2281
        for (int index = 0; index < n; index ++) {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2282
          it->push(ime[index].method_addr());
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
      }
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2285
    }
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2286
  }
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2287
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2288
  it->push(&_nest_members);
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2289
}
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2290
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2291
void InstanceKlass::remove_unshareable_info() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2292
  Klass::remove_unshareable_info();
46464
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2293
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2294
  if (is_in_error_state()) {
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2295
    // Classes are attempted to link during dumping and may fail,
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2296
    // 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
  2297
    // 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
  2298
    // is_linked() is true.
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2299
    // 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
  2300
    return;
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2301
  }
6432a858a220 8180325: Use ClassLoaderData::classes_do for CDS classes
coleenp
parents: 46458
diff changeset
  2302
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2303
  // Unlink the class
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2304
  if (is_linked()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2305
    unlink_class();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2306
  }
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
  2307
  {
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
  2308
    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
  2309
    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
  2310
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2311
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2312
  constants()->remove_unshareable_info();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2313
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2314
  for (int i = 0; i < methods()->length(); i++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2315
    Method* m = methods()->at(i);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2316
    m->remove_unshareable_info();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2317
  }
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2318
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2319
  // do array classes also.
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2320
  if (array_klasses() != NULL) {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2321
    array_klasses()->remove_unshareable_info();
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2322
  }
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2323
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2324
  // 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
  2325
  // 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
  2326
  guarantee(_source_debug_extension == NULL, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2327
  guarantee(_dep_context == DependencyContext::EMPTY, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2328
  guarantee(_osr_nmethods_head == NULL, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2329
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2330
#if INCLUDE_JVMTI
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2331
  guarantee(_breakpoints == NULL, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2332
  guarantee(_previous_versions == NULL, "must be");
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  2333
#endif
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2334
50735
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2335
  _init_thread = NULL;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2336
  _methods_jmethod_ids = NULL;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2337
  _jni_ids = NULL;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2338
  _oop_map_cache = NULL;
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2339
  // clear _nest_host to ensure re-load at runtime
2f2af62dfac7 8010319: Implementation of JEP 181: Nest-Based Access Control
dholmes
parents: 50634
diff changeset
  2340
  _nest_host = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2341
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2342
47103
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2343
void InstanceKlass::remove_java_mirror() {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2344
  Klass::remove_java_mirror();
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2345
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2346
  // do array classes also.
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2347
  if (array_klasses() != NULL) {
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2348
    array_klasses()->remove_java_mirror();
a993ec29ec75 8186842: Use Java class loaders for creating the CDS archive
ccheung
parents: 46968
diff changeset
  2349
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2350
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2351
26135
82b516c550f7 8046070: Class Data Sharing clean up and refactoring
iklam
parents: 25500
diff changeset
  2352
void InstanceKlass::restore_unshareable_info(ClassLoaderData* loader_data, Handle protection_domain, TRAPS) {
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
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2751
// tell if two classes have the same enclosing class (at package level)
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2752
bool InstanceKlass::is_same_package_member(const Klass* class2, TRAPS) const {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2753
  if (class2 == this) return true;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2754
  if (!class2->is_instance_klass())  return false;
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2755
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2756
  // must be in same package before we try anything else
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2757
  if (!is_same_class_package(class2))
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2758
    return false;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2759
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2760
  // As long as there is an outer_this.getEnclosingClass,
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2761
  // shift the search outward.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2762
  const InstanceKlass* outer_this = this;
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2763
  for (;;) {
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2764
    // As we walk along, look for equalities between outer_this and class2.
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2765
    // Eventually, the walks will terminate as outer_this stops
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2766
    // at the top-level class around the original class.
4496
c5a0b15a8e7d 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 4094
diff changeset
  2767
    bool ignore_inner_is_member;
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2768
    const Klass* next = outer_this->compute_enclosing_class(&ignore_inner_is_member,
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2769
                                                            CHECK_false);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2770
    if (next == NULL)  break;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2771
    if (next == class2)  return true;
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2772
    outer_this = InstanceKlass::cast(next);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2773
  }
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2774
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2775
  // Now do the same for class2.
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2776
  const InstanceKlass* outer2 = InstanceKlass::cast(class2);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2777
  for (;;) {
4496
c5a0b15a8e7d 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 4094
diff changeset
  2778
    bool ignore_inner_is_member;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2779
    Klass* next = outer2->compute_enclosing_class(&ignore_inner_is_member,
4496
c5a0b15a8e7d 6895168: JCK api/signaturetest/sigtest.basic.html#basic test fails for jdk 5.0 with HS 16 in nightly build
xlu
parents: 4094
diff changeset
  2780
                                                    CHECK_false);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2781
    if (next == NULL)  break;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2782
    // Might as well check the new outer against all available values.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2783
    if (next == this)  return true;
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2784
    if (next == outer_this)  return true;
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2785
    outer2 = InstanceKlass::cast(next);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2786
  }
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2787
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2788
  // If by this point we have not found an equality between the
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2789
  // two classes, we know they are in separate package members.
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2790
  return false;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2791
}
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  2792
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2793
bool InstanceKlass::find_inner_classes_attr(int* ooff, int* noff, TRAPS) const {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2794
  constantPoolHandle i_cp(THREAD, constants());
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2795
  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
  2796
    int ioff = iter.inner_class_info_index();
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2797
    if (ioff != 0) {
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2798
      // 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
  2799
      // before attempting to find the class.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2800
      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
  2801
        Klass* inner_klass = i_cp->klass_at(ioff, CHECK_false);
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2802
        if (this == inner_klass) {
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2803
          *ooff = iter.outer_class_info_index();
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2804
          *noff = iter.inner_name_index();
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2805
          return true;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2806
        }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2807
      }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2808
    }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2809
  }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2810
  return false;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2811
}
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2812
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2813
InstanceKlass* InstanceKlass::compute_enclosing_class(bool* inner_is_member, TRAPS) const {
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2814
  InstanceKlass* outer_klass = NULL;
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2815
  *inner_is_member = false;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2816
  int ooff = 0, noff = 0;
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2817
  bool has_inner_classes_attr = find_inner_classes_attr(&ooff, &noff, THREAD);
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2818
  if (has_inner_classes_attr) {
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2819
    constantPoolHandle i_cp(THREAD, constants());
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2820
    if (ooff != 0) {
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2821
      Klass* ok = i_cp->klass_at(ooff, CHECK_NULL);
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2822
      outer_klass = InstanceKlass::cast(ok);
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2823
      *inner_is_member = true;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2824
    }
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2825
    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
  2826
      // It may be unsafe anonymous; try for that.
46341
4c676683bdb9 8176705: Remove static functions in InstanceKlass
hseigel
parents: 46329
diff changeset
  2827
      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
  2828
      if (encl_method_class_idx != 0) {
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2829
        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
  2830
        outer_klass = InstanceKlass::cast(ok);
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2831
        *inner_is_member = false;
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2832
      }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2833
    }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2834
  }
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2835
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2836
  // If no inner class attribute found for this class.
34666
1c7168ea0034 8140485: Class load and creation cleanup
mgronlun
parents: 34629
diff changeset
  2837
  if (NULL == outer_klass) return NULL;
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2838
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2839
  // 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
  2840
  // 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
  2841
  // 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
  2842
  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
  2843
  return outer_klass;
30222
bfe6be3c4ef8 8057919: Class.getSimpleName() should work for non-JLS compliant class names
vlivanov
parents: 29792
diff changeset
  2844
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2845
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2846
jint InstanceKlass::compute_modifier_flags(TRAPS) const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2847
  jint access = access_flags().as_int();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2848
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2849
  // But check if it happens to be member class.
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2850
  InnerClassesIterator iter(this);
12231
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2851
  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
  2852
    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
  2853
    // 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
  2854
    // 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
  2855
    if (ioff == 0) continue;
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2856
6a9cfc59a18a 7109878: The instanceKlass EnclosingMethhod attribute fields can be folded into the _inner_class field.
jiangli
parents: 11407
diff changeset
  2857
    // 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
  2858
    // since we are looking for the flags for our self.
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2859
    Symbol* inner_name = constants()->klass_name_at(ioff);
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  2860
    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
  2861
      // 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
  2862
      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
  2863
      break;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2864
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2865
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2866
  // Remember to strip ACC_SUPER bit
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2867
  return (access & (~JVM_ACC_SUPER)) & JVM_ACC_WRITTEN_FLAGS;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2868
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2869
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2870
jint InstanceKlass::jvmti_class_status() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2871
  jint result = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2872
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2873
  if (is_linked()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2874
    result |= JVMTI_CLASS_STATUS_VERIFIED | JVMTI_CLASS_STATUS_PREPARED;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2875
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2876
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2877
  if (is_initialized()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2878
    assert(is_linked(), "Class status is not consistent");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2879
    result |= JVMTI_CLASS_STATUS_INITIALIZED;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2880
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2881
  if (is_in_error_state()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2882
    result |= JVMTI_CLASS_STATUS_ERROR;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2883
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2884
  return result;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2885
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2886
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2887
Method* InstanceKlass::method_at_itable(Klass* holder, int index, TRAPS) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2888
  itableOffsetEntry* ioe = (itableOffsetEntry*)start_of_itable();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2889
  int method_table_offset_in_words = ioe->offset()/wordSize;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2890
  int nof_interfaces = (method_table_offset_in_words - itable_offset_in_words())
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2891
                       / itableOffsetEntry::size();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2892
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2893
  for (int cnt = 0 ; ; cnt ++, ioe ++) {
2131
98f9cef66a34 6810672: Comment typos
twisti
parents: 1388
diff changeset
  2894
    // If the interface isn't implemented by the receiver class,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2895
    // the VM should throw IncompatibleClassChangeError.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2896
    if (cnt >= nof_interfaces) {
50633
b8055b38b252 8204268: Improve some IncompatibleClassChangeError messages.
goetz
parents: 50429
diff changeset
  2897
      ResourceMark rm(THREAD);
b8055b38b252 8204268: Improve some IncompatibleClassChangeError messages.
goetz
parents: 50429
diff changeset
  2898
      stringStream ss;
50761
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2899
      bool same_module = (module() == holder->module());
50633
b8055b38b252 8204268: Improve some IncompatibleClassChangeError messages.
goetz
parents: 50429
diff changeset
  2900
      ss.print("Receiver class %s does not implement "
50761
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2901
               "the interface %s defining the method to be called "
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2902
               "(%s%s%s)",
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2903
               external_name(), holder->external_name(),
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2904
               (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
  2905
               (same_module) ? "" : "; ",
cb07f4b539fc 8169559: Add class loader names to relevant VM messages
lfoltan
parents: 50752
diff changeset
  2906
               (same_module) ? "" : holder->class_in_module_of_loader());
50633
b8055b38b252 8204268: Improve some IncompatibleClassChangeError messages.
goetz
parents: 50429
diff changeset
  2907
      THROW_MSG_NULL(vmSymbols::java_lang_IncompatibleClassChangeError(), ss.as_string());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2908
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2909
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2910
    Klass* ik = ioe->interface_klass();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2911
    if (ik == holder) break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2912
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2913
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2914
  itableMethodEntry* ime = ioe->first_method_entry(this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2915
  Method* m = ime[index].method();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2916
  if (m == NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2917
    THROW_NULL(vmSymbols::java_lang_AbstractMethodError());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2918
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2919
  return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2920
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2921
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2922
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2923
#if INCLUDE_JVMTI
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2924
// update default_methods for redefineclasses for methods that are
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2925
// 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
  2926
// redefinition
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2927
// 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
  2928
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
  2929
  // 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
  2930
  if (default_methods() != NULL) {
29316
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2931
    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
  2932
      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
  2933
      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
  2934
        continue; // skip uninteresting entries
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2935
      }
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2936
      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
  2937
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2938
      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
  2939
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2940
      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
  2941
      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
  2942
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2943
      default_methods()->at_put(index, new_method);
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2944
      if (log_is_enabled(Info, redefine, class, update)) {
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2945
        ResourceMark rm;
29316
5287df8a8972 8046246: the constantPoolCacheOopDesc::adjust_method_entries() used in RedefineClasses does not scale
sspitsyn
parents: 28738
diff changeset
  2946
        if (!(*trace_name_printed)) {
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2947
          log_info(redefine, class, update)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2948
            ("adjust: klassname=%s default methods from name=%s",
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2949
             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
  2950
          *trace_name_printed = true;
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2951
        }
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2952
        log_debug(redefine, class, update, vtables)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2953
          ("default method update: %s(%s) ",
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  2954
           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
  2955
      }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2956
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2957
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2958
}
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2959
#endif // INCLUDE_JVMTI
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  2960
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2961
// On-stack replacement stuff
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  2962
void InstanceKlass::add_osr_nmethod(nmethod* n) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2963
  // only one compilation can be active
27409
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2964
  {
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2965
    // 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
  2966
    MutexLockerEx ml(OsrList_lock, Mutex::_no_safepoint_check_flag);
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2967
    assert(n->is_osr_method(), "wrong kind of nmethod");
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2968
    n->set_osr_link(osr_nmethods_head());
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2969
    set_osr_nmethods_head(n);
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2970
    // Raise the highest osr level if necessary
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2971
    if (TieredCompilation) {
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2972
      Method* m = n->method();
03622fc45677 8059846: InstanceKlass should use MutexLockerEx to acquire OsrList_lock
thartmann
parents: 26558
diff changeset
  2973
      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
  2974
    }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2975
  }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2976
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2977
  // Get rid of the osr methods for the same bci that have lower levels.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2978
  if (TieredCompilation) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2979
    for (int l = CompLevel_limited_profile; l < n->comp_level(); l++) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2980
      nmethod *inv = lookup_osr_nmethod(n->method(), n->osr_entry_bci(), l, true);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2981
      if (inv != NULL && inv->is_in_use()) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2982
        inv->make_not_entrant();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2983
      }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2984
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2985
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2986
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2987
36802
18b1db5a7e70 8023191: OSR nmethods should be flushed to free space in CodeCache
thartmann
parents: 36300
diff changeset
  2988
// 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
  2989
bool InstanceKlass::remove_osr_nmethod(nmethod* n) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2990
  // 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
  2991
  MutexLockerEx ml(OsrList_lock, Mutex::_no_safepoint_check_flag);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2992
  assert(n->is_osr_method(), "wrong kind of nmethod");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2993
  nmethod* last = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2994
  nmethod* cur  = osr_nmethods_head();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  2995
  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
  2996
  Method* m = n->method();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2997
  // Search for match
36802
18b1db5a7e70 8023191: OSR nmethods should be flushed to free space in CodeCache
thartmann
parents: 36300
diff changeset
  2998
  bool found = false;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  2999
  while(cur != NULL && cur != n) {
22920
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  3000
    if (TieredCompilation && m == cur->method()) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3001
      // Find max level before n
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3002
      max_level = MAX2(max_level, cur->comp_level());
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3003
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3004
    last = cur;
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  3005
    cur = cur->osr_link();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3006
  }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3007
  nmethod* next = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3008
  if (cur == n) {
36802
18b1db5a7e70 8023191: OSR nmethods should be flushed to free space in CodeCache
thartmann
parents: 36300
diff changeset
  3009
    found = true;
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3010
    next = cur->osr_link();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3011
    if (last == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3012
      // Remove first element
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3013
      set_osr_nmethods_head(next);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3014
    } else {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3015
      last->set_osr_link(next);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3016
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3017
  }
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  3018
  n->set_osr_link(NULL);
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3019
  if (TieredCompilation) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3020
    cur = next;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3021
    while (cur != NULL) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3022
      // Find max level after n
22920
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  3023
      if (m == cur->method()) {
dd3a135fca38 8034188: OSR methods may not be recompiled at proper compilation level
neliasso
parents: 22916
diff changeset
  3024
        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
  3025
      }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3026
      cur = cur->osr_link();
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3027
    }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3028
    m->set_highest_osr_comp_level(max_level);
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3029
  }
36802
18b1db5a7e70 8023191: OSR nmethods should be flushed to free space in CodeCache
thartmann
parents: 36300
diff changeset
  3030
  return found;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3031
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3032
27434
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3033
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
  3034
  // 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
  3035
  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
  3036
  nmethod* osr = osr_nmethods_head();
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3037
  int found = 0;
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3038
  while (osr != NULL) {
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3039
    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
  3040
    if (osr->method() == m) {
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3041
      osr->mark_for_deoptimization();
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3042
      found++;
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3043
    }
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3044
    osr = osr->osr_link();
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3045
  }
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3046
  return found;
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3047
}
b4b185d05bb5 8061817: Whitebox.deoptimizeMethod() does not deoptimize all OSR versions of method
thartmann
parents: 27409
diff changeset
  3048
17370
59a0620561fa 8003557: NPG: Klass* const k should be const Klass* k.
minqi
parents: 17078
diff changeset
  3049
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
  3050
  // 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
  3051
  MutexLockerEx ml(OsrList_lock, Mutex::_no_safepoint_check_flag);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3052
  nmethod* osr = osr_nmethods_head();
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3053
  nmethod* best = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3054
  while (osr != NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3055
    assert(osr->is_osr_method(), "wrong kind of nmethod found in chain");
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3056
    // There can be a time when a c1 osr method exists but we are waiting
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3057
    // for a c2 version. When c2 completes its osr nmethod we will trash
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3058
    // the c1 version and only be able to find the c2 version. However
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3059
    // while we overflow in the c1 code at back branches we don't want to
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3060
    // try and switch to the same code as we are already running
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3061
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3062
    if (osr->method() == m &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3063
        (bci == InvocationEntryBci || osr->osr_entry_bci() == bci)) {
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3064
      if (match_level) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3065
        if (osr->comp_level() == comp_level) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3066
          // Found a match - return it.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3067
          return osr;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3068
        }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3069
      } else {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3070
        if (best == NULL || (osr->comp_level() > best->comp_level())) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3071
          if (osr->comp_level() == CompLevel_highest_tier) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3072
            // Found the best possible - return it.
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3073
            return osr;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3074
          }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3075
          best = osr;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3076
        }
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3077
      }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3078
    }
3908
24b55ad4c228 6863023: need non-perm oops in code cache for JSR 292
jrose
parents: 3576
diff changeset
  3079
    osr = osr->osr_link();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3080
  }
6453
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3081
  if (best != NULL && best->comp_level() >= comp_level && match_level == false) {
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3082
    return best;
970dc585ab63 6953144: Tiered compilation
iveresov
parents: 6421
diff changeset
  3083
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3084
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3085
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3086
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3087
// -----------------------------------------------------------------------------------------------------
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3088
// Printing
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3089
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3090
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3091
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3092
#define BULLET  " - "
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3093
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3094
static const char* state_names[] = {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3095
  "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
  3096
};
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3097
20017
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3098
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
  3099
  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
  3100
    intptr_t e = start[i];
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3101
    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
  3102
    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
  3103
      st->print(" ");
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3104
      ((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
  3105
    }
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3106
    st->cr();
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3107
  }
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3108
}
81eba62e9048 8014013: CallInfo structure no longer accurately reports the result of a LinkResolver operation
drchase
parents: 19326
diff changeset
  3109
35900
d64cf9290fc4 8148481: Devirtualize Klass::vtable
mgerdin
parents: 35899
diff changeset
  3110
static void print_vtable(vtableEntry* start, int len, outputStream* st) {
d64cf9290fc4 8148481: Devirtualize Klass::vtable
mgerdin
parents: 35899
diff changeset
  3111
  return print_vtable(reinterpret_cast<intptr_t*>(start), len, st);
d64cf9290fc4 8148481: Devirtualize Klass::vtable
mgerdin
parents: 35899
diff changeset
  3112
}
d64cf9290fc4 8148481: Devirtualize Klass::vtable
mgerdin
parents: 35899
diff changeset
  3113
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3114
void InstanceKlass::print_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3115
  assert(is_klass(), "must be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3116
  Klass::print_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3117
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3118
  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
  3119
  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
  3120
  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
  3121
  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
  3122
  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
  3123
  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
  3124
  st->print(BULLET"sub:               ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3125
  Klass* sub = subklass();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3126
  int n;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3127
  for (n = 0; sub != NULL; n++, sub = sub->next_sibling()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3128
    if (n < MaxSubklassPrintSize) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3129
      sub->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3130
      st->print("   ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3131
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3132
  }
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  3133
  if (n >= MaxSubklassPrintSize) st->print("(" INTX_FORMAT " more klasses...)", n - MaxSubklassPrintSize);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3134
  st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3135
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3136
  if (is_interface()) {
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
  3137
    MutexLocker ml(Compile_lock);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3138
    st->print_cr(BULLET"nof implementors:  %d", nof_implementors());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3139
    if (nof_implementors() == 1) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3140
      st->print_cr(BULLET"implementor:    ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3141
      st->print("   ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3142
      implementor()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3143
      st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3144
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3145
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3146
51265
8329bfbe1b30 8208399: Metadata methods print_(value_)on_maybe_null() compare 'this' to NULL
hseigel
parents: 51096
diff changeset
  3147
  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
  3148
  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
  3149
  if (Verbose || WizardMode) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3150
    Array<Method*>* method_array = methods();
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3151
    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
  3152
      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
  3153
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3154
  }
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3155
  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
  3156
  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
  3157
  if (Verbose && default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3158
    Array<Method*>* method_array = default_methods();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3159
    for (int i = 0; i < method_array->length(); i++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3160
      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
  3161
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3162
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3163
  if (default_vtable_indices() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3164
    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
  3165
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3166
  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
  3167
  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
  3168
  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
  3169
  if (class_loader_data() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3170
    st->print(BULLET"class loader data:  ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3171
    class_loader_data()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3172
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3173
  }
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  3174
  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
  3175
  if (source_file_name() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3176
    st->print(BULLET"source file:       ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3177
    source_file_name()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3178
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3179
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3180
  if (source_debug_extension() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3181
    st->print(BULLET"source debug extension:       ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3182
    st->print("%s", source_debug_extension());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3183
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3184
  }
15601
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  3185
  st->print(BULLET"class annotations:       "); class_annotations()->print_value_on(st); st->cr();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  3186
  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
  3187
  st->print(BULLET"field annotations:       "); fields_annotations()->print_value_on(st); st->cr();
df8faef6efaf 8007320: NPG: move method annotations
coleenp
parents: 15484
diff changeset
  3188
  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
  3189
  {
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3190
    bool have_pv = false;
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3191
    // 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
  3192
    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
  3193
         pv_node != NULL;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3194
         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
  3195
      if (!have_pv)
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3196
        st->print(BULLET"previous version:  ");
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3197
      have_pv = true;
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3198
      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
  3199
    }
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3200
    if (have_pv) st->cr();
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3201
  }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3202
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3203
  if (generic_signature() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3204
    st->print(BULLET"generic signature: ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3205
    generic_signature()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3206
    st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3207
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3208
  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
  3209
  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
  3210
  if (java_mirror() != NULL) {
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3211
    st->print(BULLET"java mirror:       ");
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3212
    java_mirror()->print_value_on(st);
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3213
    st->cr();
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3214
  } else {
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3215
    st->print_cr(BULLET"java mirror:       NULL");
4ac20e5f96ce 8202171: Some oopDesc functions compare this with NULL
hseigel
parents: 51265
diff changeset
  3216
  }
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  3217
  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
  3218
  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
  3219
  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
  3220
  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
  3221
  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
  3222
  FieldPrinter print_static_field(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3223
  ((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
  3224
  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
  3225
  FieldPrinter print_nonstatic_field(st);
33602
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  3226
  InstanceKlass* ik = const_cast<InstanceKlass*>(this);
16053580a684 8139163: InstanceKlass::cast passes through NULL
coleenp
parents: 33593
diff changeset
  3227
  ik->do_nonstatic_fields(&print_nonstatic_field);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3228
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3229
  st->print(BULLET"non-static oop maps: ");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3230
  OopMapBlock* map     = start_of_nonstatic_oop_maps();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3231
  OopMapBlock* end_map = map + nonstatic_oop_map_count();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3232
  while (map < end_map) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3233
    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
  3234
    map++;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3235
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3236
  st->cr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3237
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3238
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3239
#endif //PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3240
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3241
void InstanceKlass::print_value_on(outputStream* st) const {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3242
  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
  3243
  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
  3244
  name()->print_value_on(st);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3245
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3246
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3247
#ifndef PRODUCT
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3248
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3249
void FieldPrinter::do_field(fieldDescriptor* fd) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3250
  _st->print(BULLET);
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3251
   if (_obj == NULL) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3252
     fd->print_on(_st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3253
     _st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3254
   } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3255
     fd->print_on_for(_st, _obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3256
     _st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3257
   }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3258
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3259
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3260
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3261
void InstanceKlass::oop_print_on(oop obj, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3262
  Klass::oop_print_on(obj, st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3263
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3264
  if (this == SystemDictionary::String_klass()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3265
    typeArrayOop value  = java_lang_String::value(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3266
    juint        length = java_lang_String::length(obj);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3267
    if (value != NULL &&
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3268
        value->is_typeArray() &&
33628
09241459a8b8 8141132: JEP 254: Compact Strings
thartmann
parents: 33151
diff changeset
  3269
        length <= (juint) value->length()) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3270
      st->print(BULLET"string: ");
22907
f978a4a64728 8035648: Don't use Handle in java_lang_String::print
stefank
parents: 22881
diff changeset
  3271
      java_lang_String::print(obj, st);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3272
      st->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3273
      if (!WizardMode)  return;  // that is enough
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3274
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3275
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3276
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3277
  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
  3278
  FieldPrinter print_field(st, obj);
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3279
  do_nonstatic_fields(&print_field);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3280
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3281
  if (this == SystemDictionary::Class_klass()) {
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3282
    st->print(BULLET"signature: ");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3283
    java_lang_Class::print_signature(obj, st);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3284
    st->cr();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3285
    Klass* mirrored_klass = java_lang_Class::as_Klass(obj);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3286
    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
  3287
    Metadata::print_value_on_maybe_null(st, mirrored_klass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3288
    st->cr();
46722
ae2cfffe2e64 8185296: java_lang_Class::array_klass should be array_klass_acquire
coleenp
parents: 46701
diff changeset
  3289
    Klass* array_klass = java_lang_Class::array_klass_acquire(obj);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3290
    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
  3291
    Metadata::print_value_on_maybe_null(st, array_klass);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3292
    st->cr();
8725
8c1e3dd5fe1b 7017732: move static fields into Class to prepare for perm gen removal
never
parents: 8676
diff changeset
  3293
    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
  3294
    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
  3295
    Klass* real_klass = java_lang_Class::as_Klass(obj);
33611
9abd65805e19 8139203: Consistent naming for klass type predicates
coleenp
parents: 33602
diff changeset
  3296
    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
  3297
      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
  3298
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3299
  } else if (this == SystemDictionary::MethodType_klass()) {
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3916
diff changeset
  3300
    st->print(BULLET"signature: ");
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8653
diff changeset
  3301
    java_lang_invoke_MethodType::print_signature(obj, st);
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3916
diff changeset
  3302
    st->cr();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3303
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3304
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3305
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3306
bool InstanceKlass::verify_itable_index(int i) {
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3307
  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
  3308
  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
  3309
  return true;
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3310
}
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3311
4584
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 4573
diff changeset
  3312
#endif //PRODUCT
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 4573
diff changeset
  3313
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3314
void InstanceKlass::oop_print_value_on(oop obj, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3315
  st->print("a ");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3316
  name()->print_value_on(st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3317
  obj->print_address_on(st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3318
  if (this == SystemDictionary::String_klass()
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3319
      && java_lang_String::value(obj) != NULL) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3320
    ResourceMark rm;
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3321
    int len = java_lang_String::length(obj);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3322
    int plen = (len < 24 ? len : 12);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3323
    char* str = java_lang_String::as_utf8_string(obj, 0, plen);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3324
    st->print(" = \"%s\"", str);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3325
    if (len > plen)
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3326
      st->print("...[%d]", len);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3327
  } else if (this == SystemDictionary::Class_klass()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3328
    Klass* k = java_lang_Class::as_Klass(obj);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3329
    st->print(" = ");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3330
    if (k != NULL) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3331
      k->print_value_on(st);
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3332
    } else {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3333
      const char* tname = type2name(java_lang_Class::primitive_type(obj));
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3334
      st->print("%s", tname ? tname : "type?");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3335
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3336
  } else if (this == SystemDictionary::MethodType_klass()) {
4094
1f424b2b2171 6815692: method handle code needs some cleanup (post-6655638)
jrose
parents: 3916
diff changeset
  3337
    st->print(" = ");
8676
9098d4e927e1 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8653
diff changeset
  3338
    java_lang_invoke_MethodType::print_signature(obj, st);
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3339
  } else if (java_lang_boxing_object::is_instance(obj)) {
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3340
    st->print(" = ");
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3341
    java_lang_boxing_object::print(obj, st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3342
  } 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
  3343
    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
  3344
    if (vmentry != NULL) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3345
      st->print(" => ");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3346
      vmentry->print_value_on(st);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3347
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3348
  } else if (this == SystemDictionary::MemberName_klass()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3349
    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
  3350
    if (vmtarget != NULL) {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3351
      st->print(" = ");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3352
      vmtarget->print_value_on(st);
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3353
    } else {
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3354
      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
  3355
      st->print(".");
30245956af37 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 13201
diff changeset
  3356
      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
  3357
    }
2332
5c7b6f4ce0a1 6814659: separable cleanups and subroutines for 6655638
jrose
parents: 2131
diff changeset
  3358
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3359
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3360
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3361
const char* InstanceKlass::internal_name() const {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3362
  return external_name();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3363
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3364
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3365
void InstanceKlass::print_class_load_logging(ClassLoaderData* loader_data,
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3366
                                             const char* module_name,
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3367
                                             const ClassFileStream* cfs) const {
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3368
  if (!log_is_enabled(Info, class, load)) {
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3369
    return;
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
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3372
  ResourceMark rm;
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3373
  LogMessage(class, load) msg;
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3374
  stringStream info_stream;
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3375
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3376
  // Name and class hierarchy info
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3377
  info_stream.print("%s", external_name());
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3378
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3379
  // Source
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3380
  if (cfs != NULL) {
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3381
    if (cfs->source() != NULL) {
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  3382
      if (module_name != NULL) {
47673
6126617b8508 8185160: -XX:DumpLoadedClassList omits graal classes
iklam
parents: 47668
diff changeset
  3383
        if (ClassLoader::is_modules_image(cfs->source())) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3384
          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
  3385
        } else {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3386
          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
  3387
        }
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  3388
      } else {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3389
        info_stream.print(" source: %s", cfs->source());
36508
5f9eee6b383b 8142968: Module System implementation
alanb
parents: 36300
diff changeset
  3390
      }
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3391
    } 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
  3392
      Thread* THREAD = Thread::current();
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3393
      Klass* caller =
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3394
            THREAD->is_Java_thread()
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3395
                ? ((JavaThread*)THREAD)->security_get_caller_class(1)
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3396
                : NULL;
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3397
      // 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
  3398
      if (caller != NULL) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3399
        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
  3400
      } else {
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3401
        // source is unknown
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
    } else {
46271
979ebd346ecf 8169881: Remove implicit Handle conversions oop->Handle
coleenp
parents: 42650
diff changeset
  3404
      oop class_loader = loader_data->class_loader();
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3405
      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
  3406
    }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3407
  } else {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3408
    info_stream.print(" source: shared objects file");
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3409
  }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3410
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3411
  msg.info("%s", info_stream.as_string());
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3412
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3413
  if (log_is_enabled(Debug, class, load)) {
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3414
    stringStream debug_stream;
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3415
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3416
    // Class hierarchy info
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3417
    debug_stream.print(" klass: " INTPTR_FORMAT " super: " INTPTR_FORMAT,
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3418
                       p2i(this),  p2i(superklass()));
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3419
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3420
    // Interfaces
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3421
    if (local_interfaces() != NULL && local_interfaces()->length() > 0) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3422
      debug_stream.print(" interfaces:");
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3423
      int length = local_interfaces()->length();
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3424
      for (int i = 0; i < length; i++) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3425
        debug_stream.print(" " INTPTR_FORMAT,
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3426
                           p2i(InstanceKlass::cast(local_interfaces()->at(i))));
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3427
      }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3428
    }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3429
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3430
    // Class loader
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3431
    debug_stream.print(" loader: [");
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3432
    loader_data->print_value_on(&debug_stream);
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3433
    debug_stream.print("]");
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3434
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3435
    // Classfile checksum
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3436
    if (cfs) {
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3437
      debug_stream.print(" bytes: %d checksum: %08x",
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3438
                         cfs->length(),
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3439
                         ClassLoader::crc32(0, (const char*)cfs->buffer(),
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3440
                         cfs->length()));
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3441
    }
46444
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3442
677be3444372 8154791: Xlog classload too redundant msgs info/debug
rprotacio
parents: 46431
diff changeset
  3443
    msg.debug("%s", debug_stream.as_string());
35917
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3444
  }
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3445
}
463d67f86eaa 8079408: Reimplement TraceClassLoading, TraceClassUnloading, and TraceClassLoaderData with Unified Logging.
mockner
parents: 35900
diff changeset
  3446
15437
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3447
#if INCLUDE_SERVICES
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3448
// Size Statistics
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3449
void InstanceKlass::collect_statistics(KlassSizeStats *sz) const {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3450
  Klass::collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3451
35898
ddc274f0052f 8145628: hotspot metadata classes shouldn't use HeapWordSize or heap related macros like align_object_size
coleenp
parents: 35847
diff changeset
  3452
  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
  3453
  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
  3454
  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
  3455
  sz->_nonstatic_oopmap_bytes = wordSize * nonstatic_oop_map_size();
15437
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3456
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3457
  int n = 0;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3458
  n += (sz->_methods_array_bytes         = sz->count_array(methods()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3459
  n += (sz->_method_ordering_bytes       = sz->count_array(method_ordering()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3460
  n += (sz->_local_interfaces_bytes      = sz->count_array(local_interfaces()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3461
  n += (sz->_transitive_interfaces_bytes = sz->count_array(transitive_interfaces()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3462
  n += (sz->_fields_bytes                = sz->count_array(fields()));
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3463
  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
  3464
  n += (sz->_nest_members_bytes          = sz->count_array(nest_members()));
15437
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3465
  sz->_ro_bytes += n;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3466
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3467
  const ConstantPool* cp = constants();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3468
  if (cp) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3469
    cp->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3470
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3471
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3472
  const Annotations* anno = annotations();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3473
  if (anno) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3474
    anno->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3475
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3476
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3477
  const Array<Method*>* methods_array = methods();
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3478
  if (methods()) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3479
    for (int i = 0; i < methods_array->length(); i++) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3480
      Method* method = methods_array->at(i);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3481
      if (method) {
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3482
        sz->_method_count ++;
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3483
        method->collect_statistics(sz);
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3484
      }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3485
    }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3486
  }
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3487
}
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3488
#endif // INCLUDE_SERVICES
eabd4555d072 6479360: PrintClassHistogram improvements
acorn
parents: 15216
diff changeset
  3489
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3490
// Verification
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3491
50800
6da12aa23b88 8205607: Use oop_iterate instead of oop_iterate_no_header
stefank
parents: 50761
diff changeset
  3492
class VerifyFieldClosure: public BasicOopIterateClosure {
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3493
 protected:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3494
  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
  3495
    oop obj = RawAccess<>::oop_load(p);
46968
9119841280f4 8160399: is_oop_or_null involves undefined behavior
coleenp
parents: 46766
diff changeset
  3496
    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
  3497
      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
  3498
      Universe::print_on(tty);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3499
      guarantee(false, "boom");
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3500
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3501
  }
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3502
 public:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3503
  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
  3504
  virtual void do_oop(narrowOop* p) { VerifyFieldClosure::do_oop_work(p); }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3505
};
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3506
22794
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3507
void InstanceKlass::verify_on(outputStream* st) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3508
#ifndef PRODUCT
18439
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3509
  // 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
  3510
  if (_verify_count == Universe::verify_count()) return;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3511
  _verify_count = Universe::verify_count();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3512
#endif
18439
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3513
725ce18186b3 8016325: JVM hangs verifying system dictionary
coleenp
parents: 17830
diff changeset
  3514
  // Verify Klass
22794
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3515
  Klass::verify_on(st);
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3516
f1c014ad3754 8027146: Class loading verification failure if GC occurs in Universe::flush_dependents_on
coleenp
parents: 22232
diff changeset
  3517
  // 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
  3518
  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
  3519
            "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
  3520
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3521
  // Verify vtables
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3522
  if (is_linked()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3523
    // $$$ 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
  3524
    // always seemed a valid generalization.  (DLD -- 6/00)
46408
70aab0c2ea8b 8178350: klassVtable and klassItable should be ValueObj
iklam
parents: 46387
diff changeset
  3525
    vtable().verify(st);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3526
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3527
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3528
  // Verify first subklass
23515
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  3529
  if (subklass() != NULL) {
f4872ef5df09 8031820: NPG: Fix remaining references to metadata as oops in comments
coleenp
parents: 22929
diff changeset
  3530
    guarantee(subklass()->is_klass(), "should be klass");
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3531
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3532
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3533
  // Verify siblings
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3534
  Klass* super = this->super();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3535
  Klass* sib = next_sibling();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3536
  if (sib != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3537
    if (sib == this) {
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 33105
diff changeset
  3538
      fatal("subclass points to itself " PTR_FORMAT, p2i(sib));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3539
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3540
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3541
    guarantee(sib->is_klass(), "should be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3542
    guarantee(sib->super() == super, "siblings should have same superklass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3543
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3544
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
  3545
  // Verify implementor fields requires the Compile_lock, but this is sometimes
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
  3546
  // called inside a safepoint, so don't verify.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3547
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3548
  // Verify local interfaces
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3549
  if (local_interfaces()) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3550
    Array<InstanceKlass*>* local_interfaces = this->local_interfaces();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3551
    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
  3552
      InstanceKlass* e = local_interfaces->at(j);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  3553
      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
  3554
    }
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
  // Verify transitive interfaces
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3558
  if (transitive_interfaces() != NULL) {
51329
9c68699bebe5 8208999: Some use of Klass* should be replaced by InstanceKlass*
iklam
parents: 51268
diff changeset
  3559
    Array<InstanceKlass*>* transitive_interfaces = this->transitive_interfaces();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3560
    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
  3561
      InstanceKlass* e = transitive_interfaces->at(j);
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14385
diff changeset
  3562
      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
  3563
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3564
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3565
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3566
  // Verify methods
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3567
  if (methods() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3568
    Array<Method*>* methods = this->methods();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3569
    for (int j = 0; j < methods->length(); j++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3570
      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
  3571
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3572
    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
  3573
      Method* m1 = methods->at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3574
      Method* m2 = methods->at(j + 1);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3575
      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
  3576
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3577
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3578
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3579
  // Verify method ordering
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3580
  if (method_ordering() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3581
    Array<int>* method_ordering = this->method_ordering();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3582
    int length = method_ordering->length();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3583
    if (JvmtiExport::can_maintain_original_method_order() ||
16667
f0c0139a2125 8010943: guarantee(length == 0) failed: invalid method ordering length
hseigel
parents: 15935
diff changeset
  3584
        ((UseSharedSpaces || DumpSharedSpaces) && length != 0)) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3585
      guarantee(length == methods()->length(), "invalid method ordering length");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3586
      jlong sum = 0;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3587
      for (int j = 0; j < length; j++) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3588
        int original_index = method_ordering->at(j);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3589
        guarantee(original_index >= 0, "invalid method ordering index");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3590
        guarantee(original_index < length, "invalid method ordering index");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3591
        sum += original_index;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3592
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3593
      // Verify sum of indices 0,1,...,length-1
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3594
      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
  3595
    } else {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3596
      guarantee(length == 0, "invalid method ordering length");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3597
    }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3598
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3599
20391
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3600
  // Verify default methods
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3601
  if (default_methods() != NULL) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3602
    Array<Method*>* methods = this->default_methods();
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3603
    for (int j = 0; j < methods->length(); j++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3604
      guarantee(methods->at(j)->is_method(), "non-method in methods array");
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3605
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3606
    for (int j = 0; j < methods->length() - 1; j++) {
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3607
      Method* m1 = methods->at(j);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3608
      Method* m2 = methods->at(j + 1);
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3609
      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
  3610
    }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3611
  }
7b146c5ebb18 8009130: Lambda: Fix access controls, loader constraints.
acorn
parents: 20379
diff changeset
  3612
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3613
  // Verify JNI static field identifiers
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3614
  if (jni_ids() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3615
    jni_ids()->verify(this);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3616
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3617
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3618
  // Verify other fields
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3619
  if (array_klasses() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3620
    guarantee(array_klasses()->is_klass(), "should be klass");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3621
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3622
  if (constants() != NULL) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3623
    guarantee(constants()->is_constantPool(), "should be constant pool");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3624
  }
51444
3e5d28e6de32 8209301: JVM rename is_anonymous, host_klass to unsafe specific terminology ahead of Unsafe.defineAnonymousClass deprecation
lfoltan
parents: 51379
diff changeset
  3625
  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
  3626
  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
  3627
    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
  3628
  }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3629
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3630
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3631
void InstanceKlass::oop_verify_on(oop obj, outputStream* st) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3632
  Klass::oop_verify_on(obj, st);
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3633
  VerifyFieldClosure blk;
50800
6da12aa23b88 8205607: Use oop_iterate instead of oop_iterate_no_header
stefank
parents: 50761
diff changeset
  3634
  obj->oop_iterate(&blk);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3635
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3636
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3637
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3638
// JNIid class for jfieldIDs only
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3639
// Note to reviewers:
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3640
// 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
  3641
// in the compressed oops workspace.
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3642
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
  3643
  _holder = holder;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3644
  _offset = offset;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3645
  _next = next;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3646
  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
  3647
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3648
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3649
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3650
JNIid* JNIid::find(int offset) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3651
  JNIid* current = this;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3652
  while (current != NULL) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3653
    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
  3654
    current = current->next();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3655
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3656
  return NULL;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3657
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3658
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3659
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
  3660
  while (current != NULL) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3661
    JNIid* next = current->next();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3662
    delete current;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3663
    current = next;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3664
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3665
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3666
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3667
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3668
void JNIid::verify(Klass* holder) {
13738
d67be49a5beb 7195833: NPG: Rename instanceClassLoaderKlass, instanceRefKlass and instanceMirrorKlass
coleenp
parents: 13736
diff changeset
  3669
  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
  3670
  int end_field_offset;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3671
  end_field_offset = first_field_offset + (InstanceKlass::cast(holder)->static_field_size() * wordSize);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3672
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3673
  JNIid* current = this;
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3674
  while (current != NULL) {
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3675
    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
  3676
#ifdef ASSERT
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3677
    int o = current->offset();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3678
    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
  3679
      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
  3680
    }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3681
#endif
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3682
    current = current->next();
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3683
  }
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3684
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3685
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3686
#ifdef ASSERT
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3687
void InstanceKlass::set_init_state(ClassState state) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3688
  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
  3689
                                               : (_init_state < state);
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3690
  assert(good_state || state == allocated, "illegal state transition");
11407
5399831730cd 7117052: instanceKlass::_init_state can be u1 type
coleenp
parents: 10739
diff changeset
  3691
  _init_state = (u1)state;
360
21d113ecbf6a 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 225
diff changeset
  3692
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3693
#endif
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3694
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  3695
#if INCLUDE_JVMTI
29576
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  3696
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3697
// RedefineClasses() support for previous versions
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3698
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3699
// 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
  3700
// 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
  3701
// 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
  3702
bool InstanceKlass::_has_previous_versions = false;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3703
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3704
// 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
  3705
// 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
  3706
// 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
  3707
// 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
  3708
// walk in CLDG::clean_deallocate_lists().
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3709
bool InstanceKlass::has_previous_versions_and_reset() {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3710
  bool ret = _has_previous_versions;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3711
  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
  3712
     ret ? "true" : "false");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3713
  _has_previous_versions = false;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3714
  return ret;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3715
}
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3716
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3717
// 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
  3718
// during class unloading.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3719
void InstanceKlass::purge_previous_version_list() {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3720
  assert(SafepointSynchronize::is_at_safepoint(), "only called at safepoint");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3721
  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
  3722
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3723
  // Quick exit.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3724
  if (previous_versions() == NULL) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3725
    return;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3726
  }
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3727
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3728
  // 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
  3729
  // while it is safe to do so.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3730
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3731
  int deleted_count = 0;    // leave debugging breadcrumbs
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3732
  int live_count = 0;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3733
  ClassLoaderData* loader_data = class_loader_data();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3734
  assert(loader_data != NULL, "should never be null");
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
  ResourceMark rm;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3737
  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
  3738
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3739
  // previous versions are linked together through the InstanceKlass
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3740
  InstanceKlass* pv_node = previous_versions();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3741
  InstanceKlass* last = this;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3742
  int version = 0;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3743
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3744
  // check the previous versions list
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3745
  for (; pv_node != NULL; ) {
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
    ConstantPool* pvcp = pv_node->constants();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3748
    assert(pvcp != NULL, "cp ref was unexpectedly cleared");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3749
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3750
    if (!pvcp->on_stack()) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3751
      // 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
  3752
      // are executing.  Unlink this previous_version.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3753
      // The previous version InstanceKlass is on the ClassLoaderData deallocate list
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3754
      // 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
  3755
      log_trace(redefine, class, iklass, purge)
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3756
        ("previous version " INTPTR_FORMAT " is dead.", p2i(pv_node));
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3757
      // For debugging purposes.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3758
      pv_node->set_is_scratch_class();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3759
      // Unlink from previous version list.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3760
      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
  3761
      InstanceKlass* next = pv_node->previous_versions();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3762
      pv_node->link_previous_versions(NULL);   // point next to NULL
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3763
      last->link_previous_versions(next);
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3764
      // Add to the deallocate list after unlinking
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3765
      loader_data->add_to_deallocate_list(pv_node);
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3766
      pv_node = next;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3767
      deleted_count++;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3768
      version++;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3769
      continue;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3770
    } else {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3771
      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
  3772
      assert(pvcp->pool_holder() != NULL, "Constant pool with no holder");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3773
      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
  3774
      live_count++;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3775
      // 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
  3776
      _has_previous_versions = true;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3777
    }
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3778
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3779
    // At least one method is live in this previous version.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3780
    // Reset dead EMCP methods not to get breakpoints.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3781
    // 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
  3782
    // longer running.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3783
    Array<Method*>* method_refs = pv_node->methods();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3784
    if (method_refs != NULL) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3785
      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
  3786
      for (int j = 0; j < method_refs->length(); j++) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3787
        Method* method = method_refs->at(j);
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3788
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3789
        if (!method->on_stack()) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3790
          // no breakpoints for non-running methods
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3791
          if (method->is_running_emcp()) {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3792
            method->set_running_emcp(false);
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3793
          }
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3794
        } else {
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3795
          assert (method->is_obsolete() || method->is_running_emcp(),
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3796
                  "emcp method cannot run after emcp bit is cleared");
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3797
          log_trace(redefine, class, iklass, purge)
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3798
            ("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
  3799
             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
  3800
        }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3801
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3802
    }
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3803
    // next previous version
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3804
    last = pv_node;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3805
    pv_node = pv_node->previous_versions();
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3806
    version++;
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3807
  }
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3808
  log_trace(redefine, class, iklass, purge)
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3809
    ("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
  3810
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3811
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3812
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
  3813
                                                int emcp_method_count) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3814
  int obsolete_method_count = old_methods->length() - emcp_method_count;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3815
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3816
  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
  3817
      _previous_versions != NULL) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3818
    // We have a mix of obsolete and EMCP methods so we have to
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3819
    // clear out any matching EMCP method entries the hard way.
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3820
    int local_count = 0;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3821
    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
  3822
      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
  3823
      if (old_method->is_obsolete()) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3824
        // only obsolete methods are interesting
8076
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  3825
        Symbol* m_name = old_method->name();
96d498ec7ae1 6990754: Use native memory and reference counting to implement SymbolTable
coleenp
parents: 7397
diff changeset
  3826
        Symbol* m_signature = old_method->signature();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3827
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3828
        // 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
  3829
        int j = 0;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3830
        for (InstanceKlass* prev_version = _previous_versions;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3831
             prev_version != NULL;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3832
             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
  3833
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3834
          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
  3835
          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
  3836
            Method* method = method_refs->at(k);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3837
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3838
            if (!method->is_obsolete() &&
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3839
                method->name() == m_name &&
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3840
                method->signature() == m_signature) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3841
              // The current RedefineClasses() call has made all EMCP
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3842
              // versions of this method obsolete so mark it as obsolete
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3843
              log_trace(redefine, class, iklass, add)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3844
                ("%s(%s): flush obsolete method @%d in version @%d",
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3845
                 m_name->as_C_string(), m_signature->as_C_string(), k, j);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3846
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3847
              method->set_is_obsolete();
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3848
              break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3849
            }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3850
          }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3851
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3852
          // The previous loop may not find a matching EMCP method, but
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3853
          // that doesn't mean that we can optimize and not go any
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3854
          // 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
  3855
          // method for this generation could have already been made obsolete,
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3856
          // 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
  3857
          // been made obsolete.
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3858
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3859
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3860
        if (++local_count >= obsolete_method_count) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3861
          // no more obsolete methods so bail out now
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3862
          break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3863
        }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3864
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3865
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3866
  }
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3867
}
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3868
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3869
// 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
  3870
// 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
  3871
// 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
  3872
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
  3873
                                         int emcp_method_count) {
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3874
  assert(Thread::current()->is_VM_thread(),
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3875
         "only VMThread can add previous versions");
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3876
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3877
  ResourceMark rm;
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3878
  log_trace(redefine, class, iklass, add)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3879
    ("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
  3880
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3881
  // Clean out old previous versions for this class
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3882
  purge_previous_version_list();
26558
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3883
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3884
  // 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
  3885
  // 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
  3886
  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
  3887
  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
  3888
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3889
  // 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
  3890
  // 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
  3891
  // 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
  3892
  // 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
  3893
  ConstantPool* cp_ref = scratch_class->constants();
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3894
  if (!cp_ref->on_stack()) {
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3895
    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
  3896
    // For debugging purposes.
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  3897
    scratch_class->set_is_scratch_class();
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  3898
    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
  3899
    return;
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3900
  }
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3901
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3902
  if (emcp_method_count != 0) {
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3903
    // 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
  3904
    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
  3905
      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
  3906
      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
  3907
        // 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
  3908
        // we can add breakpoints for it.
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3909
29576
c223b0a9872e 8061205: MetadataOnStackMark only needs to walk code cache during class redefinition
coleenp
parents: 29316
diff changeset
  3910
        // 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
  3911
        // 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
  3912
        // 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
  3913
        // 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
  3914
        // 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
  3915
        old_method->set_running_emcp(true);
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3916
        log_trace(redefine, class, iklass, add)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3917
          ("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
  3918
      } else if (!old_method->is_obsolete()) {
38259
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3919
        log_trace(redefine, class, iklass, add)
b495d1cfe673 8153535: Convert TraceRedefineClasses to Unified Logging
rehn
parents: 38151
diff changeset
  3920
          ("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
  3921
      }
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3922
    }
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3923
  }
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3924
b7df27df6384 8055008: Clean up code that saves the previous versions of redefined classes
coleenp
parents: 26556
diff changeset
  3925
  // Add previous version if any methods are still running.
40927
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3926
  // Set has_previous_version flag for processing during class unloading.
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3927
  _has_previous_versions = true;
59f3c8a69541 8165246: [REDO] InstanceKlass::_previous_version_count goes negative
coleenp
parents: 40909
diff changeset
  3928
  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
  3929
  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
  3930
  scratch_class->link_previous_versions(previous_versions());
46329
53ccc37bda19 8155672: Remove instanceKlassHandles and KlassHandles
coleenp
parents: 46327
diff changeset
  3931
  link_previous_versions(scratch_class);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3932
} // end add_previous_version()
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3933
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  3934
#endif // INCLUDE_JVMTI
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3935
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3936
Method* InstanceKlass::method_with_idnum(int idnum) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3937
  Method* m = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3938
  if (idnum < methods()->length()) {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 13391
diff changeset
  3939
    m = methods()->at(idnum);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3940
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3941
  if (m == NULL || m->method_idnum() != idnum) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3942
    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
  3943
      m = methods()->at(index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3944
      if (m->method_idnum() == idnum) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3945
        return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3946
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3947
    }
20059
c26474fd5ac0 8022887: Assertion hit while using class and redefining it with RedefineClasses simultaneously
coleenp
parents: 19326
diff changeset
  3948
    // 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
  3949
    return NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3950
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3951
  return m;
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3952
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
  3953
30107
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3954
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3955
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
  3956
  if (idnum >= methods()->length()) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3957
    return NULL;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3958
  }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3959
  Method* m = methods()->at(idnum);
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3960
  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
  3961
    return m;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3962
  }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3963
  // 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
  3964
  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
  3965
    m = methods()->at(index);
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3966
    if (m->orig_method_idnum() == idnum) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3967
      return m;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3968
    }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3969
  }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3970
  // 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
  3971
  return NULL;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3972
}
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3973
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3974
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3975
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
  3976
  InstanceKlass* holder = get_klass_version(version);
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3977
  if (holder == NULL) {
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3978
    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
  3979
  }
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3980
  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
  3981
  return method;
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3982
}
e3d259b825a1 8067662: "java.lang.NullPointerException: Method name is null" from StackTraceElement.<init>
sspitsyn
parents: 30104
diff changeset
  3983
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  3984
#if INCLUDE_JVMTI
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3985
JvmtiCachedClassFileData* InstanceKlass::get_cached_class_file() {
48794
ea0d0781c63c 8178351: Simplify MetaspaceShared::is_in_shared_space and MetaspaceObj::is_shared
iklam
parents: 48619
diff changeset
  3986
  if (MetaspaceShared::is_in_shared_metaspace(_cached_class_file)) {
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3987
    // Ignore the archived class stream data
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3988
    return NULL;
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3989
  } else {
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3990
    return _cached_class_file;
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3991
  }
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3992
}
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  3993
18940
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3994
jint InstanceKlass::get_cached_class_file_len() {
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3995
  return VM_RedefineClasses::get_cached_class_file_len(_cached_class_file);
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3996
}
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3997
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3998
unsigned char * InstanceKlass::get_cached_class_file_bytes() {
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  3999
  return VM_RedefineClasses::get_cached_class_file_bytes(_cached_class_file);
d39d4765e6cb 8020309: Eliminate InstanceKlass::_cached_class_file_len.
jiangli
parents: 18687
diff changeset
  4000
}
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  4001
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  4002
#if INCLUDE_CDS
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  4003
JvmtiCachedClassFileData* InstanceKlass::get_archived_class_data() {
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  4004
  if (DumpSharedSpaces) {
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  4005
    return _cached_class_file;
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  4006
  } else {
46746
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  4007
    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
  4008
    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
  4009
      return _cached_class_file;
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  4010
    } else {
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  4011
      return NULL;
ea379ebb9447 8072061: Automatically determine optimal sizes for the CDS regions
iklam
parents: 46722
diff changeset
  4012
    }
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  4013
  }
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  4014
}
38059
86ab3f0a9f87 8148195: Some InstanceKlass and MethodCounters fields can be excluded when JVMTI is not supported
cjplummer
parents: 37248
diff changeset
  4015
#endif
41182
dbd59c1da636 8078644: CDS needs to support JVMTI CFLH
jiangli
parents: 40927
diff changeset
  4016
#endif