jvmtiTrace.hpp revision 1472:c18cbe5936b8 
1/*
2 * Copyright (c) 1999, 2007, 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///////////////////////////////////////////////////////////////
26//
27// class JvmtiTrace
28//
29// Support for JVMTI tracing code
30//
31
32// Support tracing except in product build on the client compiler
33#ifndef PRODUCT
34#define JVMTI_TRACE 1
35#else
36#ifdef COMPILER2
37#define JVMTI_TRACE 1
38#endif
39#endif
40
41#ifdef JVMTI_TRACE
42
43class JvmtiTrace : AllStatic {
44
45  static bool        _initialized;
46  static bool        _on;
47  static bool        _trace_event_controller;
48  static jbyte       _trace_flags[];
49  static jbyte       _event_trace_flags[];
50  static const char* _event_names[];
51  static jint        _max_function_index;
52  static jint        _max_event_index;
53  static short       _exclude_functions[];
54  static const char* _function_names[];
55
56public:
57
58  enum {
59    SHOW_IN =              01,
60    SHOW_OUT =             02,
61    SHOW_ERROR =           04,
62    SHOW_IN_DETAIL =      010,
63    SHOW_OUT_DETAIL =     020,
64    SHOW_EVENT_TRIGGER =  040,
65    SHOW_EVENT_SENT =    0100
66  };
67
68  static bool tracing()                     { return _on; }
69  static bool trace_event_controller()      { return _trace_event_controller; }
70  static jbyte trace_flags(int num)         { return _trace_flags[num]; }
71  static jbyte event_trace_flags(int num)   { return _event_trace_flags[num]; }
72  static const char* function_name(int num) { return _function_names[num]; } // To Do: add range checking
73
74  static const char* event_name(int num) {
75    static char* ext_event_name = (char*)"(extension event)";
76    if (num >= JVMTI_MIN_EVENT_TYPE_VAL && num <= JVMTI_MAX_EVENT_TYPE_VAL) {
77      return _event_names[num];
78    } else {
79      return ext_event_name;
80    }
81  }
82
83  static const char* enum_name(const char** names, const jint* values, jint value);
84
85  static void initialize();
86  static void shutdown();
87
88  // return a valid string no matter what state the thread is in
89  static const char *safe_get_thread_name(Thread *thread);
90
91  // return the name of the current thread
92  static const char *safe_get_current_thread_name();
93
94  // return a valid string no matter what the state of k_mirror
95  static const char *get_class_name(oop k_mirror);
96};
97
98#endif /*JVMTI_TRACE */
99