src/share/vm/classfile/systemDictionary.cpp
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src/share/vm/classfile/systemDictionary.cpp

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   1 /*
   2  * Copyright (c) 1997, 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *


  25 #include "precompiled.hpp"
  26 #include "classfile/classFileParser.hpp"
  27 #include "classfile/classFileStream.hpp"
  28 #include "classfile/classLoader.hpp"
  29 #include "classfile/classLoaderData.inline.hpp"
  30 #include "classfile/classLoaderExt.hpp"
  31 #include "classfile/dictionary.hpp"
  32 #include "classfile/javaClasses.inline.hpp"
  33 #include "classfile/klassFactory.hpp"
  34 #include "classfile/loaderConstraints.hpp"
  35 #include "classfile/placeholders.hpp"
  36 #include "classfile/resolutionErrors.hpp"
  37 #include "classfile/stringTable.hpp"
  38 #include "classfile/systemDictionary.hpp"
  39 #include "classfile/vmSymbols.hpp"
  40 #include "code/codeCache.hpp"
  41 #include "compiler/compileBroker.hpp"
  42 #include "gc/shared/gcLocker.hpp"
  43 #include "interpreter/bytecodeStream.hpp"
  44 #include "interpreter/interpreter.hpp"

  45 #include "memory/filemap.hpp"
  46 #include "memory/oopFactory.hpp"
  47 #include "oops/instanceKlass.hpp"
  48 #include "oops/instanceRefKlass.hpp"
  49 #include "oops/klass.inline.hpp"
  50 #include "oops/methodData.hpp"
  51 #include "oops/objArrayKlass.hpp"
  52 #include "oops/objArrayOop.inline.hpp"
  53 #include "oops/oop.inline.hpp"
  54 #include "oops/typeArrayKlass.hpp"
  55 #include "prims/jvmtiEnvBase.hpp"
  56 #include "prims/methodHandles.hpp"
  57 #include "runtime/arguments.hpp"
  58 #include "runtime/biasedLocking.hpp"
  59 #include "runtime/fieldType.hpp"
  60 #include "runtime/handles.inline.hpp"
  61 #include "runtime/java.hpp"
  62 #include "runtime/javaCalls.hpp"
  63 #include "runtime/mutexLocker.hpp"
  64 #include "runtime/orderAccess.inline.hpp"


1285 
1286     // Adjust methods to recover missing data.  They need addresses for
1287     // interpreter entry points and their default native method address
1288     // must be reset.
1289 
1290     // Updating methods must be done under a lock so multiple
1291     // threads don't update these in parallel
1292     //
1293     // Shared classes are all currently loaded by either the bootstrap or
1294     // internal parallel class loaders, so this will never cause a deadlock
1295     // on a custom class loader lock.
1296 
1297     ClassLoaderData* loader_data = ClassLoaderData::class_loader_data(class_loader());
1298     {
1299       Handle lockObject = compute_loader_lock_object(class_loader, THREAD);
1300       check_loader_lock_contention(lockObject, THREAD);
1301       ObjectLocker ol(lockObject, THREAD, true);
1302       ik->restore_unshareable_info(loader_data, protection_domain, CHECK_(nh));
1303     }
1304 
1305     if (TraceClassLoading) {
1306       ResourceMark rm;
1307       tty->print("[Loaded %s", ik->external_name());
1308       tty->print(" from shared objects file");
1309       if (class_loader.not_null()) {
1310         tty->print(" by %s", loader_data->loader_name());
1311       }
1312       tty->print_cr("]");

1313     }
1314 
1315     if (DumpLoadedClassList != NULL && classlist_file->is_open()) {
1316       // Only dump the classes that can be stored into CDS archive
1317       if (SystemDictionaryShared::is_sharing_possible(loader_data)) {
1318         ResourceMark rm(THREAD);
1319         classlist_file->print_cr("%s", ik->name()->as_C_string());
1320         classlist_file->flush();
1321       }
1322     }
1323 
1324     // notify a class loaded from shared object
1325     ClassLoadingService::notify_class_loaded(ik(), true /* shared class */);
1326   }
1327   return ik;
1328 }
1329 #endif // INCLUDE_CDS
1330 
1331 instanceKlassHandle SystemDictionary::load_instance_class(Symbol* class_name, Handle class_loader, TRAPS) {
1332   instanceKlassHandle nh = instanceKlassHandle(); // null Handle


   1 /*
   2  * Copyright (c) 1997, 2016, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *


  25 #include "precompiled.hpp"
  26 #include "classfile/classFileParser.hpp"
  27 #include "classfile/classFileStream.hpp"
  28 #include "classfile/classLoader.hpp"
  29 #include "classfile/classLoaderData.inline.hpp"
  30 #include "classfile/classLoaderExt.hpp"
  31 #include "classfile/dictionary.hpp"
  32 #include "classfile/javaClasses.inline.hpp"
  33 #include "classfile/klassFactory.hpp"
  34 #include "classfile/loaderConstraints.hpp"
  35 #include "classfile/placeholders.hpp"
  36 #include "classfile/resolutionErrors.hpp"
  37 #include "classfile/stringTable.hpp"
  38 #include "classfile/systemDictionary.hpp"
  39 #include "classfile/vmSymbols.hpp"
  40 #include "code/codeCache.hpp"
  41 #include "compiler/compileBroker.hpp"
  42 #include "gc/shared/gcLocker.hpp"
  43 #include "interpreter/bytecodeStream.hpp"
  44 #include "interpreter/interpreter.hpp"
  45 #include "logging/log.hpp"
  46 #include "memory/filemap.hpp"
  47 #include "memory/oopFactory.hpp"
  48 #include "oops/instanceKlass.hpp"
  49 #include "oops/instanceRefKlass.hpp"
  50 #include "oops/klass.inline.hpp"
  51 #include "oops/methodData.hpp"
  52 #include "oops/objArrayKlass.hpp"
  53 #include "oops/objArrayOop.inline.hpp"
  54 #include "oops/oop.inline.hpp"
  55 #include "oops/typeArrayKlass.hpp"
  56 #include "prims/jvmtiEnvBase.hpp"
  57 #include "prims/methodHandles.hpp"
  58 #include "runtime/arguments.hpp"
  59 #include "runtime/biasedLocking.hpp"
  60 #include "runtime/fieldType.hpp"
  61 #include "runtime/handles.inline.hpp"
  62 #include "runtime/java.hpp"
  63 #include "runtime/javaCalls.hpp"
  64 #include "runtime/mutexLocker.hpp"
  65 #include "runtime/orderAccess.inline.hpp"


1286 
1287     // Adjust methods to recover missing data.  They need addresses for
1288     // interpreter entry points and their default native method address
1289     // must be reset.
1290 
1291     // Updating methods must be done under a lock so multiple
1292     // threads don't update these in parallel
1293     //
1294     // Shared classes are all currently loaded by either the bootstrap or
1295     // internal parallel class loaders, so this will never cause a deadlock
1296     // on a custom class loader lock.
1297 
1298     ClassLoaderData* loader_data = ClassLoaderData::class_loader_data(class_loader());
1299     {
1300       Handle lockObject = compute_loader_lock_object(class_loader, THREAD);
1301       check_loader_lock_contention(lockObject, THREAD);
1302       ObjectLocker ol(lockObject, THREAD, true);
1303       ik->restore_unshareable_info(loader_data, protection_domain, CHECK_(nh));
1304     }
1305 
1306     if (log_is_enabled(Info, classload)) {
1307       ik()->print_loading_log(LogLevel::Info, loader_data, NULL);




1308     }
1309     if (log_is_enabled(Debug, classload)) {
1310       ik()->print_loading_log(LogLevel::Debug, loader_data, NULL);
1311     }
1312 
1313     if (DumpLoadedClassList != NULL && classlist_file->is_open()) {
1314       // Only dump the classes that can be stored into CDS archive
1315       if (SystemDictionaryShared::is_sharing_possible(loader_data)) {
1316         ResourceMark rm(THREAD);
1317         classlist_file->print_cr("%s", ik->name()->as_C_string());
1318         classlist_file->flush();
1319       }
1320     }
1321 
1322     // notify a class loaded from shared object
1323     ClassLoadingService::notify_class_loaded(ik(), true /* shared class */);
1324   }
1325   return ik;
1326 }
1327 #endif // INCLUDE_CDS
1328 
1329 instanceKlassHandle SystemDictionary::load_instance_class(Symbol* class_name, Handle class_loader, TRAPS) {
1330   instanceKlassHandle nh = instanceKlassHandle(); // null Handle


src/share/vm/classfile/systemDictionary.cpp
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