jdk8-mips64-public/hotspot: src/share/vm/jfr/leakprofiler/chains/rootSetClosure.cpp@b985cbb00e68 (annotated)

src/share/vm/jfr/leakprofiler/chains/rootSetClosure.cpp@b985cbb00e68 (annotated)

src/share/vm/jfr/leakprofiler/chains/rootSetClosure.cpp

Mon, 12 Aug 2019 18:30:40 +0300

author: apetushkov
date: Mon, 12 Aug 2019 18:30:40 +0300
changeset 9858: b985cbb00e68
child 9885: 8e875c964f41
permissions: -rw-r--r--

8223147: JFR Backport
8199712: Flight Recorder
8203346: JFR: Inconsistent signature of jfr_add_string_constant
8195817: JFR.stop should require name of recording
8195818: JFR.start should increase autogenerated name by one
8195819: Remove recording=x from jcmd JFR.check output
8203921: JFR thread sampling is missing fixes from JDK-8194552
8203929: Limit amount of data for JFR.dump
8203664: JFR start failure after AppCDS archive created with JFR StartFlightRecording
8003209: JFR events for network utilization
8207392: [PPC64] Implement JFR profiling
8202835: jfr/event/os/TestSystemProcess.java fails on missing events
Summary: Backport JFR from JDK11. Initial integration
Reviewed-by: neugens

 /*
  * Copyright (c) 2014, 2018, 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/classLoaderData.hpp"
 #include "classfile/systemDictionary.hpp"
 #include "jfr/leakprofiler/chains/edgeQueue.hpp"
 #include "jfr/leakprofiler/chains/rootSetClosure.hpp"
 #include "jfr/leakprofiler/utilities/saveRestore.hpp"
 #include "jfr/leakprofiler/utilities/unifiedOop.hpp"
 #include "memory/universe.hpp"
 #include "prims/jvmtiExport.hpp"
 #include "runtime/jniHandles.hpp"
 #include "runtime/synchronizer.hpp"
 #include "runtime/thread.hpp"
 #include "services/management.hpp"
 #include "utilities/align.hpp"
 RootSetClosure::RootSetClosure(EdgeQueue* edge_queue) :
   _edge_queue(edge_queue) {
 }
 void RootSetClosure::do_oop(oop* ref) {
   assert(ref != NULL, "invariant");
   // We discard unaligned root references because
   // our reference tagging scheme will use
   // the lowest bit in a represented reference
   // to indicate the reference is narrow.
   // It is mainly roots delivered via nmethods::do_oops()
   // that come in unaligned. It should be ok to duck these
   // since they are supposedly weak.
   if (!is_aligned(ref, HeapWordSize)) {
     return;
   }
   assert(is_aligned(ref, HeapWordSize), "invariant");
   const oop pointee = *ref;
   if (pointee != NULL) {
     closure_impl(ref, pointee);
   }
 }
 void RootSetClosure::do_oop(narrowOop* ref) {
   assert(ref != NULL, "invariant");
   assert(is_aligned(ref, sizeof(narrowOop)), "invariant");
   const oop pointee = oopDesc::load_decode_heap_oop(ref);
   if (pointee != NULL) {
     closure_impl(UnifiedOop::encode(ref), pointee);
   }
 }
 void RootSetClosure::closure_impl(const oop* reference, const oop pointee) {
   if (!_edge_queue->is_full())  {
     _edge_queue->add(NULL, reference);
   }
 }
 void RootSetClosure::add_to_queue(EdgeQueue* edge_queue) {
   RootSetClosure rs(edge_queue);
   process_roots(&rs);
 }
 class RootSetClosureMarkScope : public MarkingCodeBlobClosure::MarkScope {
 };
 void RootSetClosure::process_roots(OopClosure* closure) {
   SaveRestoreCLDClaimBits save_restore_cld_claim_bits;
   RootSetClosureMarkScope mark_scope;
   CLDToOopClosure cldt_closure(closure);
   ClassLoaderDataGraph::always_strong_cld_do(&cldt_closure);
   CodeBlobToOopClosure blobs(closure, false);
   Threads::oops_do(closure, NULL, &blobs); // XXX set CLDClosure to NULL
   ObjectSynchronizer::oops_do(closure);
   Universe::oops_do(closure);
   JNIHandles::oops_do(closure);
   JvmtiExport::oops_do(closure);
   SystemDictionary::oops_do(closure);
   Management::oops_do(closure);
   StringTable::oops_do(closure);
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/jfr/leakprofiler/chains/rootSetClosure.cpp@b985cbb00e68 (annotated)

src/share/vm/jfr/leakprofiler/chains/rootSetClosure.cpp