Mon, 12 Aug 2019 18:30:40 +0300
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
1 /*
2 * Copyright (c) 2011, 2012, 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 *
23 */
25 #include "precompiled.hpp"
26 #include "oops/metadata.hpp"
27 #include "memory/metaspace.hpp"
28 #include "memory/resourceArea.hpp"
29 #include "prims/jvmtiRedefineClasses.hpp"
31 void Metadata::set_on_stack(const bool value) {
32 // nothing to set for most metadata
33 // Can't inline because this materializes the vtable on some C++ compilers.
34 }
36 void Metadata::print_on(outputStream* st) const {
37 ResourceMark rm;
38 // print title
39 st->print("%s", internal_name());
40 print_address_on(st);
41 st->cr();
42 }
44 char* Metadata::print_value_string() const {
45 char buf[100];
46 stringStream st(buf, sizeof(buf));
47 if (this == NULL) {
48 st.print("NULL");
49 } else {
50 print_value_on(&st);
51 }
52 return st.as_string();
53 }