1 /*
 2  * Copyright (c) 2020, 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  */
24 
25 #include "precompiled.hpp"
26 #include "gc/shared/oopStorage.hpp"
27 #include "gc/shared/oopStorageSet.hpp"
28 #include "jfr/leakprofiler/utilities/rootType.hpp"
29 #include "utilities/debug.hpp"
30 
31 OopStorage* OldObjectRoot::system_oop_storage(System system) {
32   int val = int(system);
33   if (val >= _strong_oop_storage_set_first && val <= _strong_oop_storage_set_last) {
34     int index = val - _strong_oop_storage_set_first;
35     int i = 0;
36     for (OopStorageSet::Iterator it = OopStorageSet::strong_iterator(); !it.is_end(); ++it, ++i) {
37       if (i == index) {
38         return *it;
39       }
40     }
41   }
42   return NULL;
43 }
44 
45 const char* OldObjectRoot::system_description(System system) {
46   OopStorage* oop_storage = system_oop_storage(system);
47   if (oop_storage != NULL) {
48     return oop_storage->name();
49   }
50   switch (system) {
51     case _system_undetermined:
52       return "<unknown>";
53     case _universe:
54       return "Universe";
55     case _threads:
56       return "Threads";
57     case _object_synchronizer:
58       return "Object Monitor";
59     case _class_loader_data:
60       return "Class Loader Data";
61     case _management:
62       return "Management";
63     case _jvmti:
64       return "JVMTI";
65     case _code_cache:
66       return "Code Cache";
67     case _aot:
68       return "AOT";
69 #if INCLUDE_JVMCI
70     case _jvmci:
71       return "JVMCI";
72 #endif
73     default:
74       ShouldNotReachHere();
75   }
76   return NULL;
77 }
78 
79 const char* OldObjectRoot::type_description(Type type) {
80   switch (type) {
81     case _type_undetermined:
82       return "<unknown>";
83     case _stack_variable:
84       return "Stack Variable";
85     case _local_jni_handle:
86       return "Local JNI Handle";
87     case _global_jni_handle:
88       return "Global JNI Handle";
89     case _global_oop_handle:
90       return "Global Object Handle";
91     case _handle_area:
92       return "Handle Area";
93     default:
94       ShouldNotReachHere();
95   }
96   return NULL;
97 }