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) 1999, 2011, 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 #ifndef SHARE_VM_CI_CIINSTANCE_HPP
26 #define SHARE_VM_CI_CIINSTANCE_HPP
28 #include "ci/ciObject.hpp"
29 #include "oops/instanceOop.hpp"
31 // ciInstance
32 //
33 // This class represents an instanceOop in the HotSpot virtual
34 // machine. This is an oop which corresponds to a non-array
35 // instance of java.lang.Object.
36 class ciInstance : public ciObject {
37 CI_PACKAGE_ACCESS
39 protected:
40 ciInstance(instanceHandle h_i) : ciObject(h_i) {
41 assert(h_i()->is_instance(), "wrong type");
42 }
44 ciInstance(ciKlass* klass) : ciObject(klass) {}
46 instanceOop get_instanceOop() { return (instanceOop)get_oop(); }
48 const char* type_string() { return "ciInstance"; }
50 void print_impl(outputStream* st);
52 public:
53 // If this object is a java mirror, return the corresponding type.
54 // Otherwise, return NULL.
55 // (Remember that a java mirror is an instance of java.lang.Class.)
56 ciType* java_mirror_type();
58 // What kind of ciObject is this?
59 bool is_instance() { return true; }
60 bool is_java_object() { return true; }
62 // Constant value of a field.
63 ciConstant field_value(ciField* field);
65 // Constant value of a field at the specified offset.
66 ciConstant field_value_by_offset(int field_offset);
68 ciKlass* java_lang_Class_klass();
69 };
71 #endif // SHARE_VM_CI_CIINSTANCE_HPP