jdk8-mips64-public/hotspot: src/share/vm/oops/markOop.cpp@6e8e0bf87bbe

8069412: Locks need better debug-printing support
Summary: Added better debug-printing support and enhanced LogCompilation tool
Reviewed-by: kvn, roland, dholmes

     1 /*

     2  * Copyright (c) 1997, 2015, 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  */

    25 #include "precompiled.hpp"

    26 #include "oops/markOop.hpp"

    27 #include "runtime/thread.inline.hpp"

    28 #include "runtime/objectMonitor.inline.hpp"

    30 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC

    32 void markOopDesc::print_on(outputStream* st) const {

    33   if (is_marked()) {

    34     st->print(" marked(" INTPTR_FORMAT ")", value());

    35   } else if (is_locked()) {

    36     st->print(" locked(" INTPTR_FORMAT ")->", value());

    37     if (is_neutral()) {

    38       st->print("is_neutral");

    39       if (has_no_hash()) st->print(" no_hash");

    40       else st->print(" hash=" INTPTR_FORMAT, hash());

    41       st->print(" age=%d", age());

    42     } else if (has_bias_pattern()) {

    43       st->print("is_biased");

    44       JavaThread* jt = biased_locker();

    45       st->print(" biased_locker=" INTPTR_FORMAT, p2i(jt));

    46     } else if (has_monitor()) {

    47       ObjectMonitor* mon = monitor();

    48       if (mon == NULL)

    49         st->print("monitor=NULL");

    50       else {

    51         BasicLock * bl = (BasicLock *) mon->owner();

    52         st->print("monitor={count="INTPTR_FORMAT",waiters="INTPTR_FORMAT",recursions="INTPTR_FORMAT",owner="INTPTR_FORMAT"}",

    53                 mon->count(), mon->waiters(), mon->recursions(), p2i(bl));

    54       }

    55     } else {

    56       st->print("??");

    57     }

    58   } else {

    59     assert(is_unlocked() || has_bias_pattern(), "just checking");

    60     st->print("mark(");

    61     if (has_bias_pattern()) st->print("biased,");

    62     st->print("hash %#lx,", hash());

    63     st->print("age %d)", age());

    64   }

    65 }

Mercurial > jdk8-mips64-public > hotspot / file revision

src/share/vm/oops/markOop.cpp@6e8e0bf87bbe

src/share/vm/oops/markOop.cpp