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
55class 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
68public:
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
113