1 /*
2 * Copyright (c) 1999, 2013, 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 #ifndef SHARE_VM_PRIMS_JVMTITRACE_HPP
26 #define SHARE_VM_PRIMS_JVMTITRACE_HPP
27
28 #include "classfile/systemDictionary.hpp"
29 #include "jvmtifiles/jvmti.h"
30 #include "oops/objArrayOop.hpp"
31 #include "prims/jvmtiEnvThreadState.hpp"
32 #include "prims/jvmtiEventController.hpp"
33 #include "prims/jvmtiUtil.hpp"
34 #include "runtime/stackValueCollection.hpp"
35 #include "runtime/vm_operations.hpp"
36
37 ///////////////////////////////////////////////////////////////
38 //
39 // class JvmtiTrace
40 //
41 // Support for JVMTI tracing code
42 //
43
44 // Support tracing except in product build on the client compiler
45 #ifndef PRODUCT
46 #define JVMTI_TRACE
47 #else
48 #ifdef COMPILER2
49 #define JVMTI_TRACE
50 #endif
51 #endif
52
53 #ifdef JVMTI_TRACE
54
55 class JvmtiTrace : AllStatic {
56
57 static bool _initialized;
58 static bool _on;
59 static bool _trace_event_controller;
60 static jbyte _trace_flags[];
61 static jbyte _event_trace_flags[];
62 static const char* _event_names[];
63 static jint _max_function_index;
64 static jint _max_event_index;
65 static short _exclude_functions[];
66 static const char* _function_names[];
67
68 public:
69
70 enum {
71 SHOW_IN = 01,
72 SHOW_OUT = 02,
73 SHOW_ERROR = 04,
74 SHOW_IN_DETAIL = 010,
75 SHOW_OUT_DETAIL = 020,
76 SHOW_EVENT_TRIGGER = 040,
77 SHOW_EVENT_SENT = 0100
78 };
79
80 static bool tracing() { return _on; }
81 static bool trace_event_controller() { return _trace_event_controller; }
82 static jbyte trace_flags(int num) { return _trace_flags[num]; }
83 static jbyte event_trace_flags(int num) { return _event_trace_flags[num]; }
84 static const char* function_name(int num) { return _function_names[num]; } // To Do: add range checking
85
86 static const char* event_name(int num) {
87 static char* ext_event_name = (char*)"(extension event)";
88 if (num >= JVMTI_MIN_EVENT_TYPE_VAL && num <= JVMTI_MAX_EVENT_TYPE_VAL) {
89 return _event_names[num];
90 } else {
91 return ext_event_name;
92 }
93 }
94
95 static const char* enum_name(const char** names, const jint* values, jint value);
96
97 static void initialize();
98 static void shutdown();
99
100 // return a valid string no matter what state the thread is in
101 static const char *safe_get_thread_name(Thread *thread);
102
103 // return the name of the current thread
104 static const char *safe_get_current_thread_name();
105
106 // return a valid string no matter what the state of k_mirror
107 static const char *get_class_name(oop k_mirror);
108 };
109
110 #endif /*JVMTI_TRACE */
111
112 #endif // SHARE_VM_PRIMS_JVMTITRACE_HPP