jdk8-mips64-public/hotspot: src/share/vm/jfr/recorder/stacktrace/jfrStackTraceRepository.hpp@b985cbb00e68 (annotated)

src/share/vm/jfr/recorder/stacktrace/jfrStackTraceRepository.hpp@b985cbb00e68 (annotated)

src/share/vm/jfr/recorder/stacktrace/jfrStackTraceRepository.hpp

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

author: apetushkov
date: Mon, 12 Aug 2019 18:30:40 +0300
changeset 9858: b985cbb00e68
child 9871: 896c71e8d387
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) 2011, 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.
  *
  */
 #ifndef SHARE_VM_JFR_RECORDER_STACKTRACE_JFRSTACKTRACEREPOSITORY_HPP
 #define SHARE_VM_JFR_RECORDER_STACKTRACE_JFRSTACKTRACEREPOSITORY_HPP
 #include "jfr/utilities/jfrAllocation.hpp"
 #include "jfr/utilities/jfrTypes.hpp"
 class frame;
 class JavaThread;
 class JfrCheckpointSystem;
 class JfrCheckpointWriter;
 class JfrChunkWriter;
 class Method;
 class JfrStackFrame {
  private:
   const Method* _method;
   traceid _methodid;
   int _line;
   int _bci;
   u1 _type;
  public:
   enum {
     FRAME_INTERPRETER = 0,
     FRAME_JIT,
     FRAME_INLINE,
     FRAME_NATIVE,
     NUM_FRAME_TYPES
   };
   JfrStackFrame(const traceid& id, int bci, int type, const Method* method) :
     _method(method), _methodid(id), _line(0), _bci(bci), _type(type) {}
   JfrStackFrame(const traceid& id, int bci, int type, int lineno) :
     _method(NULL), _methodid(id), _line(0), _bci(bci), _type(type) {}
   bool equals(const JfrStackFrame& rhs) const;
   void write(JfrChunkWriter& cw) const;
   void write(JfrCheckpointWriter& cpw) const;
   void resolve_lineno();
 };
 class JfrStackTrace : public StackObj {
   friend class JfrStackTraceRepository;
  private:
   JfrStackFrame* _frames;
   traceid _id;
   u4 _nr_of_frames;
   unsigned int _hash;
   const u4 _max_frames;
   bool _reached_root;
   bool _lineno;
  public:
   JfrStackTrace(JfrStackFrame* frames, u4 max_frames) : _frames(frames),
                                                         _id(0),
                                                         _nr_of_frames(0),
                                                         _hash(0),
                                                         _reached_root(false),
                                                         _max_frames(max_frames),
                                                         _lineno(false) {}
   bool record_thread(JavaThread& thread, frame& frame);
   bool record_safe(JavaThread* thread, int skip, bool leakp = false);
   void resolve_linenos();
   void set_nr_of_frames(u4 nr_of_frames) { _nr_of_frames = nr_of_frames; }
   void set_hash(unsigned int hash) { _hash = hash; }
   void set_frame(u4 frame_pos, JfrStackFrame& frame);
   void set_reached_root(bool reached_root) { _reached_root = reached_root; }
   bool full_stacktrace() const { return _reached_root; }
   bool have_lineno() const { return _lineno; }
 };
 class JfrStackTraceRepository : public JfrCHeapObj {
   friend class JfrRecorder;
   friend class JfrRecorderService;
   friend class ObjectSampler;
   friend class WriteObjectSampleStacktrace;
   class StackTrace : public JfrCHeapObj {
     friend class JfrStackTrace;
     friend class JfrStackTraceRepository;
    private:
     StackTrace* _next;
     JfrStackFrame* _frames;
     const traceid _id;
     u4 _nr_of_frames;
     unsigned int _hash;
     bool _reached_root;
     mutable bool _written;
     unsigned int hash() const { return _hash; }
     bool should_write() const { return !_written; }
    public:
     StackTrace(traceid id, const JfrStackTrace& trace, StackTrace* next);
     ~StackTrace();
     traceid id() const { return _id; }
     StackTrace* next() const { return _next; }
     void write(JfrChunkWriter& cw) const;
     void write(JfrCheckpointWriter& cpw) const;
     bool equals(const JfrStackTrace& rhs) const;
   };
  private:
   static const u4 TABLE_SIZE = 2053;
   StackTrace* _table[TABLE_SIZE];
   traceid _next_id;
   u4 _entries;
   size_t write_impl(JfrChunkWriter& cw, bool clear);
   traceid record_for(JavaThread* thread, int skip, JfrStackFrame* frames, u4 max_frames);
   traceid record_for(JavaThread* thread, int skip, JfrStackFrame* frames, u4 max_frames, unsigned int* hash);
   traceid add_trace(const JfrStackTrace& stacktrace);
   const StackTrace* resolve_entry(unsigned int hash, traceid id) const;
   static void write_metadata(JfrCheckpointWriter& cpw);
   JfrStackTraceRepository();
   static JfrStackTraceRepository& instance();
  public:
   static JfrStackTraceRepository* create();
   bool initialize();
   static void destroy();
   static traceid add(const JfrStackTrace& stacktrace);
   static traceid record(Thread* thread, int skip = 0);
   static traceid record(Thread* thread, int skip, unsigned int* hash);
   traceid write(JfrCheckpointWriter& cpw, traceid id, unsigned int hash);
   size_t write(JfrChunkWriter& cw, bool clear);
   size_t clear();
 };
 #endif // SHARE_VM_JFR_RECORDER_STACKTRACE_JFRSTACKTRACEREPOSITORY_HPP

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/jfr/recorder/stacktrace/jfrStackTraceRepository.hpp@b985cbb00e68 (annotated)

src/share/vm/jfr/recorder/stacktrace/jfrStackTraceRepository.hpp