jdk8-mips64-public/hotspot: src/share/vm/services/classLoadingService.cpp@6cfa41b33dfb (annotated)

src/share/vm/services/classLoadingService.cpp@6cfa41b33dfb (annotated)

src/share/vm/services/classLoadingService.cpp

Wed, 02 Aug 2017 10:21:43 +0800

author: aoqi
date: Wed, 02 Aug 2017 10:21:43 +0800
changeset 423: 6cfa41b33dfb
parent 0: f90c822e73f8
child 6876: 710a3c8b516e
permissions: -rw-r--r--

#5933 Backport of JDK-8047382: hotspot build failed with gcc version Red Hat 4.4.6-4.
Summary: Removed the Solaris specific conditionalization for casting to void * within calls to HS_DTRACE_PROBE* to enable successful compilation with gcc Red Hat 4.4.6-4.
Contributed-by: lfoltan
Reviewed-by: hseigel, stefank

 /*
  * Copyright (c) 2003, 2015, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "classfile/systemDictionary.hpp"
 #include "memory/allocation.hpp"
 #include "memory/universe.hpp"
 #include "oops/oop.inline.hpp"
 #include "runtime/mutexLocker.hpp"
 #include "services/classLoadingService.hpp"
 #include "services/memoryService.hpp"
 #include "utilities/dtrace.hpp"
 #include "utilities/macros.hpp"
 #ifdef DTRACE_ENABLED
 // Only bother with this argument setup if dtrace is available
 #ifndef USDT2
 HS_DTRACE_PROBE_DECL4(hotspot, class__loaded, char*, int, oop, bool);
 HS_DTRACE_PROBE_DECL4(hotspot, class__unloaded, char*, int, oop, bool);
 #define DTRACE_CLASSLOAD_PROBE(type, clss, shared)  \
   {                                                 \
     char* data = NULL;                              \
     int len = 0;                                    \
     Symbol* name = (clss)->name();                  \
     if (name != NULL) {                             \
       data = (char*)name->bytes();                  \
       len = name->utf8_length();                    \
     }                                               \
     HS_DTRACE_PROBE4(hotspot, class__##type,        \
       data, len, (void *)(clss)->class_loader(), (shared)); \
   }
 #else /* USDT2 */
 #define HOTSPOT_CLASS_unloaded HOTSPOT_CLASS_UNLOADED
 #define HOTSPOT_CLASS_loaded HOTSPOT_CLASS_LOADED
 #define DTRACE_CLASSLOAD_PROBE(type, clss, shared)  \
   {                                                 \
     char* data = NULL;                              \
     int len = 0;                                    \
     Symbol* name = (clss)->name();                  \
     if (name != NULL) {                             \
       data = (char*)name->bytes();                  \
       len = name->utf8_length();                    \
     }                                               \
     HOTSPOT_CLASS_##type( /* type = unloaded, loaded */ \
       data, len, (clss)->class_loader(), (shared)); \
   }
 #endif /* USDT2 */
 #else //  ndef DTRACE_ENABLED
 #define DTRACE_CLASSLOAD_PROBE(type, clss, shared)
 #endif
 #if INCLUDE_MANAGEMENT
 // counters for classes loaded from class files
 PerfCounter*    ClassLoadingService::_classes_loaded_count = NULL;
 PerfCounter*    ClassLoadingService::_classes_unloaded_count = NULL;
 PerfCounter*    ClassLoadingService::_classbytes_loaded = NULL;
 PerfCounter*    ClassLoadingService::_classbytes_unloaded = NULL;
 // counters for classes loaded from shared archive
 PerfCounter*    ClassLoadingService::_shared_classes_loaded_count = NULL;
 PerfCounter*    ClassLoadingService::_shared_classes_unloaded_count = NULL;
 PerfCounter*    ClassLoadingService::_shared_classbytes_loaded = NULL;
 PerfCounter*    ClassLoadingService::_shared_classbytes_unloaded = NULL;
 PerfVariable*   ClassLoadingService::_class_methods_size = NULL;
 void ClassLoadingService::init() {
   EXCEPTION_MARK;
   // These counters are for java.lang.management API support.
   // They are created even if -XX:-UsePerfData is set and in
   // that case, they will be allocated on C heap.
   _classes_loaded_count =
                  PerfDataManager::create_counter(JAVA_CLS, "loadedClasses",
                                                  PerfData::U_Events, CHECK);
   _classes_unloaded_count =
                  PerfDataManager::create_counter(JAVA_CLS, "unloadedClasses",
                                                  PerfData::U_Events, CHECK);
   _shared_classes_loaded_count =
                  PerfDataManager::create_counter(JAVA_CLS, "sharedLoadedClasses",
                                                  PerfData::U_Events, CHECK);
   _shared_classes_unloaded_count =
                  PerfDataManager::create_counter(JAVA_CLS, "sharedUnloadedClasses",
                                                  PerfData::U_Events, CHECK);
   if (UsePerfData) {
     _classbytes_loaded =
                  PerfDataManager::create_counter(SUN_CLS, "loadedBytes",
                                                  PerfData::U_Bytes, CHECK);
     _classbytes_unloaded =
                  PerfDataManager::create_counter(SUN_CLS, "unloadedBytes",
                                                  PerfData::U_Bytes, CHECK);
     _shared_classbytes_loaded =
                  PerfDataManager::create_counter(SUN_CLS, "sharedLoadedBytes",
                                                  PerfData::U_Bytes, CHECK);
     _shared_classbytes_unloaded =
                  PerfDataManager::create_counter(SUN_CLS, "sharedUnloadedBytes",
                                                  PerfData::U_Bytes, CHECK);
     _class_methods_size =
                  PerfDataManager::create_variable(SUN_CLS, "methodBytes",
                                                   PerfData::U_Bytes, CHECK);
   }
 }
 void ClassLoadingService::notify_class_unloaded(InstanceKlass* k) {
   DTRACE_CLASSLOAD_PROBE(unloaded, k, false);
   // Classes that can be unloaded must be non-shared
   _classes_unloaded_count->inc();
   if (UsePerfData) {
     // add the class size
     size_t size = compute_class_size(k);
     _classbytes_unloaded->inc(size);
     // Compute method size & subtract from running total.
     // We are called during phase 1 of mark sweep, so it's
     // still ok to iterate through Method*s here.
     Array<Method*>* methods = k->methods();
     for (int i = 0; i < methods->length(); i++) {
       _class_methods_size->inc(-methods->at(i)->size());
     }
   }
   if (TraceClassUnloading) {
     ResourceMark rm;
     tty->print_cr("[Unloading class %s " INTPTR_FORMAT "]", k->external_name(), p2i(k));
   }
 }
 void ClassLoadingService::notify_class_loaded(InstanceKlass* k, bool shared_class) {
   DTRACE_CLASSLOAD_PROBE(loaded, k, shared_class);
   PerfCounter* classes_counter = (shared_class ? _shared_classes_loaded_count
                                                : _classes_loaded_count);
   // increment the count
   classes_counter->inc();
   if (UsePerfData) {
     PerfCounter* classbytes_counter = (shared_class ? _shared_classbytes_loaded
                                                     : _classbytes_loaded);
     // add the class size
     size_t size = compute_class_size(k);
     classbytes_counter->inc(size);
   }
 }
 size_t ClassLoadingService::compute_class_size(InstanceKlass* k) {
   // lifted from ClassStatistics.do_class(Klass* k)
   size_t class_size = 0;
   class_size += k->size();
   if (k->oop_is_instance()) {
     class_size += k->methods()->size();
     // FIXME: Need to count the contents of methods
     class_size += k->constants()->size();
     class_size += k->local_interfaces()->size();
     class_size += k->transitive_interfaces()->size();
     // We do not have to count implementors, since we only store one!
     // FIXME: How should these be accounted for, now when they have moved.
     //class_size += k->fields()->size();
   }
   return class_size * oopSize;
 }
 bool ClassLoadingService::set_verbose(bool verbose) {
   MutexLocker m(Management_lock);
   // verbose will be set to the previous value
   bool succeed = CommandLineFlags::boolAtPut((char*)"TraceClassLoading", &verbose, Flag::MANAGEMENT);
   assert(succeed, "Setting TraceClassLoading flag fails");
   reset_trace_class_unloading();
   return verbose;
 }
 // Caller to this function must own Management_lock
 void ClassLoadingService::reset_trace_class_unloading() {
   assert(Management_lock->owned_by_self(), "Must own the Management_lock");
   bool value = MemoryService::get_verbose() || ClassLoadingService::get_verbose();
   bool succeed = CommandLineFlags::boolAtPut((char*)"TraceClassUnloading", &value, Flag::MANAGEMENT);
   assert(succeed, "Setting TraceClassUnLoading flag fails");
 }
 GrowableArray<KlassHandle>* LoadedClassesEnumerator::_loaded_classes = NULL;
 Thread* LoadedClassesEnumerator::_current_thread = NULL;
 LoadedClassesEnumerator::LoadedClassesEnumerator(Thread* cur_thread) {
   assert(cur_thread == Thread::current(), "Check current thread");
   int init_size = ClassLoadingService::loaded_class_count();
   _klass_handle_array = new GrowableArray<KlassHandle>(init_size);
   // For consistency of the loaded classes, grab the SystemDictionary lock
   MutexLocker sd_mutex(SystemDictionary_lock);
   // Set _loaded_classes and _current_thread and begin enumerating all classes.
   // Only one thread will do the enumeration at a time.
   // These static variables are needed and they are used by the static method
   // add_loaded_class called from classes_do().
   _loaded_classes = _klass_handle_array;
   _current_thread = cur_thread;
   SystemDictionary::classes_do(&add_loaded_class);
   // FIXME: Exclude array klasses for now
   // Universe::basic_type_classes_do(&add_loaded_class);
 }
 #endif // INCLUDE_MANAGEMENT

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/services/classLoadingService.cpp@6cfa41b33dfb (annotated)

src/share/vm/services/classLoadingService.cpp