src/share/vm/prims/jvmtiTrace.hpp

Wed, 08 Oct 2008 08:10:51 -0700

author
ksrini
date
Wed, 08 Oct 2008 08:10:51 -0700
changeset 823
f008d3631bd1
parent 435
a61af66fc99e
child 1907
c18cbe5936b8
permissions
-rw-r--r--

6755845: JVM_FindClassFromBoot triggers assertions
Summary: Fixes assertions caused by one jvm_entry calling another, solved by refactoring code and modified gamma test.
Reviewed-by: dholmes, xlu

     1 /*
     2  * Copyright 1999-2007 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
    20  * CA 95054 USA or visit www.sun.com if you need additional information or
    21  * have any questions.
    22  *
    23  */
    25 ///////////////////////////////////////////////////////////////
    26 //
    27 // class JvmtiTrace
    28 //
    29 // Support for JVMTI tracing code
    30 //
    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
    41 #ifdef JVMTI_TRACE
    43 class JvmtiTrace : AllStatic {
    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[];
    56 public:
    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   };
    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
    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   }
    83   static const char* enum_name(const char** names, const jint* values, jint value);
    85   static void initialize();
    86   static void shutdown();
    88   // return a valid string no matter what state the thread is in
    89   static const char *safe_get_thread_name(Thread *thread);
    91   // return the name of the current thread
    92   static const char *safe_get_current_thread_name();
    94   // return a valid string no matter what the state of k_mirror
    95   static const char *get_class_name(oop k_mirror);
    96 };
    98 #endif /*JVMTI_TRACE */

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