1 /*
2 * Copyright (c) 1999, 2010, 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 #ifndef KERNEL
29 #include "classfile/systemDictionary.hpp"
30 #include "jvmtifiles/jvmti.h"
31 #include "oops/objArrayOop.hpp"
32 #include "prims/jvmtiEnvThreadState.hpp"
33 #include "prims/jvmtiEventController.hpp"
34 #include "prims/jvmtiUtil.hpp"
35 #include "runtime/stackValueCollection.hpp"
36 #include "runtime/vm_operations.hpp"
37 #endif
38
39 ///////////////////////////////////////////////////////////////
40 //
41 // class JvmtiTrace
42 //
43 // Support for JVMTI tracing code
44 //
45
46 // Support tracing except in product build on the client compiler
47 #ifndef PRODUCT
48 #define JVMTI_TRACE 1
49 #else
50 #ifdef COMPILER2
51 #define JVMTI_TRACE 1
52 #endif
53 #endif
54
55 #ifdef JVMTI_TRACE
56
57 class JvmtiTrace : AllStatic {
58
59 static bool _initialized;
60 static bool _on;
61 static bool _trace_event_controller;
62 static jbyte _trace_flags[];
63 static jbyte _event_trace_flags[];
64 static const char* _event_names[];
65 static jint _max_function_index;
66 static jint _max_event_index;
67 static short _exclude_functions[];
68 static const char* _function_names[];
69
70 public:
71
72 enum {
73 SHOW_IN = 01,
74 SHOW_OUT = 02,
75 SHOW_ERROR = 04,
76 SHOW_IN_DETAIL = 010,
77 SHOW_OUT_DETAIL = 020,
78 SHOW_EVENT_TRIGGER = 040,
79 SHOW_EVENT_SENT = 0100
80 };
81
82 static bool tracing() { return _on; }
83 static bool trace_event_controller() { return _trace_event_controller; }
84 static jbyte trace_flags(int num) { return _trace_flags[num]; }
85 static jbyte event_trace_flags(int num) { return _event_trace_flags[num]; }
86 static const char* function_name(int num) { return _function_names[num]; } // To Do: add range checking
87
88 static const char* event_name(int num) {
89 static char* ext_event_name = (char*)"(extension event)";
90 if (num >= JVMTI_MIN_EVENT_TYPE_VAL && num <= JVMTI_MAX_EVENT_TYPE_VAL) {
91 return _event_names[num];
92 } else {
93 return ext_event_name;
94 }
95 }
96
97 static const char* enum_name(const char** names, const jint* values, jint value);
98
99 static void initialize();
100 static void shutdown();
101
102 // return a valid string no matter what state the thread is in
103 static const char *safe_get_thread_name(Thread *thread);
104
105 // return the name of the current thread
106 static const char *safe_get_current_thread_name();
107
108 // return a valid string no matter what the state of k_mirror
109 static const char *get_class_name(oop k_mirror);
110 };
111
112 #endif /*JVMTI_TRACE */
113
114 #endif // SHARE_VM_PRIMS_JVMTITRACE_HPP