markOop.cpp

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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#include "precompiled.hpp"
#include "oops/markOop.hpp"
#include "runtime/thread.inline.hpp"
#include "runtime/objectMonitor.inline.hpp"

PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC

void markOopDesc::print_on(outputStream* st) const {
  if (is_marked()) {
    st->print(" marked(" INTPTR_FORMAT ")", value());
  } else if (is_locked()) {
    st->print(" locked(" INTPTR_FORMAT ")->", value());
    if (is_neutral()) {
      st->print("is_neutral");
      if (has_no_hash()) st->print(" no_hash");
      else st->print(" hash=" INTPTR_FORMAT, hash());
      st->print(" age=%d", age());
    } else if (has_bias_pattern()) {
      st->print("is_biased");
      JavaThread* jt = biased_locker();
      st->print(" biased_locker=" INTPTR_FORMAT, p2i(jt));
    } else if (has_monitor()) {
      ObjectMonitor* mon = monitor();
      if (mon == NULL)
        st->print("monitor=NULL");
      else {
        BasicLock * bl = (BasicLock *) mon->owner();
        st->print("monitor={count="INTPTR_FORMAT",waiters="INTPTR_FORMAT",recursions="INTPTR_FORMAT",owner="INTPTR_FORMAT"}",
                mon->count(), mon->waiters(), mon->recursions(), p2i(bl));
      }
    } else {
      st->print("??");
    }
  } else {
    assert(is_unlocked() || has_bias_pattern(), "just checking");
    st->print("mark(");
    if (has_bias_pattern()) st->print("biased,");
    st->print("hash %#lx,", hash());
    st->print("age %d)", age());
  }
}