1 /*

     2  * Copyright 1997-2006 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  */

    24 

    25 # include "incls/_precompiled.incl"

    26 # include "incls/_oop.cpp.incl"

    27 

    28 bool always_do_update_barrier = false;

    29 

    30 BarrierSet* oopDesc::_bs = NULL;

    31 

    32 #ifdef PRODUCT

    33 void oopDesc::print_on(outputStream* st) const {}

    34 void oopDesc::print_value_on(outputStream* st) const {}

    35 void oopDesc::print_address_on(outputStream* st) const {}

    36 char* oopDesc::print_value_string() { return NULL; }

    37 char* oopDesc::print_string() { return NULL; }

    38 void oopDesc::print()         {}

    39 void oopDesc::print_value()   {}

    40 void oopDesc::print_address() {}

    41 #else

    42 void oopDesc::print_on(outputStream* st) const {

    43   if (this == NULL) {

    44     st->print_cr("NULL");

    45   } else {

    46     blueprint()->oop_print_on(oop(this), st);

    47   }

    48 }

    49 

    50 void oopDesc::print_value_on(outputStream* st) const {

    51   oop obj = oop(this);

    52   if (this == NULL) {

    53     st->print("NULL");

    54   } else if (java_lang_String::is_instance(obj)) {

    55     java_lang_String::print(obj, st);

    56     if (PrintOopAddress) print_address_on(st);

    57 #ifdef ASSERT

    58   } else if (!Universe::heap()->is_in(obj) || !Universe::heap()->is_in(klass())) {

    59     st->print("### BAD OOP %p ###", (address)obj);

    60 #endif

    61   } else {

    62     blueprint()->oop_print_value_on(obj, st);

    63   }

    64 }

    65 

    66 void oopDesc::print_address_on(outputStream* st) const {

    67   if (PrintOopAddress) {

    68     st->print("{");

    69     if (PrintOopAddress) {

    70       st->print(INTPTR_FORMAT, this);

    71     }

    72     st->print("}");

    73   }

    74 }

    75 

    76 void oopDesc::print()         { print_on(tty);         }

    77 

    78 void oopDesc::print_value()   { print_value_on(tty);   }

    79 

    80 void oopDesc::print_address() { print_address_on(tty); }

    81 

    82 char* oopDesc::print_string() {

    83   stringStream* st = new stringStream();

    84   print_on(st);

    85   return st->as_string();

    86 }

    87 

    88 char* oopDesc::print_value_string() {

    89   stringStream* st = new stringStream();

    90   print_value_on(st);

    91   return st->as_string();

    92 }

    93 

    94 #endif // PRODUCT

    95 

    96 void oopDesc::verify_on(outputStream* st) {

    97   if (this != NULL) {

    98     blueprint()->oop_verify_on(this, st);

    99   }

   100 }

   101 

   102 

   103 void oopDesc::verify() {

   104   verify_on(tty);

   105 }

   106 

   107 

   108 void oopDesc::verify_old_oop(oop* p, bool allow_dirty) {

   109   blueprint()->oop_verify_old_oop(this, p, allow_dirty);

   110 }

   111 

   112 

   113 bool oopDesc::partially_loaded() {

   114   return blueprint()->oop_partially_loaded(this);

   115 }

   116 

   117 

   118 void oopDesc::set_partially_loaded() {

   119   blueprint()->oop_set_partially_loaded(this);

   120 }

   121 

   122 

   123 intptr_t oopDesc::slow_identity_hash() {

   124   // slow case; we have to acquire the micro lock in order to locate the header

   125   ResetNoHandleMark rnm; // Might be called from LEAF/QUICK ENTRY

   126   HandleMark hm;

   127   Handle object((oop)this);

   128   assert(!is_shared_readonly(), "using identity hash on readonly object?");

   129   return ObjectSynchronizer::identity_hash_value_for(object);

   130 }

   131 

   132 VerifyOopClosure VerifyOopClosure::verify_oop;