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1 /*
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2 * Copyright 1999-2007 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 ///////////////////////////////////////////////////////////////
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26 //
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27 // class JvmtiTrace
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28 //
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29 // Support for JVMTI tracing code
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30 //
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31
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32 // Support tracing except in product build on the client compiler
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33 #ifndef PRODUCT
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34 #define JVMTI_TRACE 1
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35 #else
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36 #ifdef COMPILER2
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37 #define JVMTI_TRACE 1
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38 #endif
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39 #endif
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40
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41 #ifdef JVMTI_TRACE
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42
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43 class JvmtiTrace : AllStatic {
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44
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45 static bool _initialized;
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46 static bool _on;
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47 static bool _trace_event_controller;
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48 static jbyte _trace_flags[];
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49 static jbyte _event_trace_flags[];
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50 static const char* _event_names[];
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51 static jint _max_function_index;
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52 static jint _max_event_index;
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53 static short _exclude_functions[];
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54 static const char* _function_names[];
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55
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56 public:
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57
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58 enum {
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59 SHOW_IN = 01,
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60 SHOW_OUT = 02,
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61 SHOW_ERROR = 04,
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62 SHOW_IN_DETAIL = 010,
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63 SHOW_OUT_DETAIL = 020,
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64 SHOW_EVENT_TRIGGER = 040,
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65 SHOW_EVENT_SENT = 0100
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66 };
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67
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68 static bool tracing() { return _on; }
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69 static bool trace_event_controller() { return _trace_event_controller; }
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70 static jbyte trace_flags(int num) { return _trace_flags[num]; }
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71 static jbyte event_trace_flags(int num) { return _event_trace_flags[num]; }
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72 static const char* function_name(int num) { return _function_names[num]; } // To Do: add range checking
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73
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74 static const char* event_name(int num) {
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75 static char* ext_event_name = (char*)"(extension event)";
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76 if (num >= JVMTI_MIN_EVENT_TYPE_VAL && num <= JVMTI_MAX_EVENT_TYPE_VAL) {
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77 return _event_names[num];
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78 } else {
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79 return ext_event_name;
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80 }
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81 }
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82
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83 static const char* enum_name(const char** names, const jint* values, jint value);
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84
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85 static void initialize();
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86 static void shutdown();
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87
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88 // return a valid string no matter what state the thread is in
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89 static const char *safe_get_thread_name(Thread *thread);
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90
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91 // return the name of the current thread
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92 static const char *safe_get_current_thread_name();
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93
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94 // return a valid string no matter what the state of k_mirror
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95 static const char *get_class_name(oop k_mirror);
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96 };
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97
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98 #endif /*JVMTI_TRACE */
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