Mercurial > hg > graal-jvmci-8
view src/share/vm/gc_implementation/g1/concurrentMarkThread.inline.hpp @ 1389:5dbd9300cf9c
6943926: G1: Integer overflow during heap region verification
Summary: The expression that calculates the live bytes for a heap region can overflow for a suitably large humongous region/object. Cache the object size in a suitably sized local variable so that the expression is converted to a wider type.
Reviewed-by: tonyp, jmasa, iveresov, apetrusenko
author | johnc |
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date | Thu, 15 Apr 2010 15:52:55 -0700 |
parents | 37f87013dfd8 |
children | c18cbe5936b8 |
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/* * Copyright 2001-2007 Sun Microsystems, Inc. All Rights Reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * 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. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, * CA 95054 USA or visit www.sun.com if you need additional information or * have any questions. * */ // Total virtual time so far. inline double ConcurrentMarkThread::vtime_accum() { return _vtime_accum + _cm->all_task_accum_vtime(); } // Marking virtual time so far inline double ConcurrentMarkThread::vtime_mark_accum() { return _vtime_mark_accum + _cm->all_task_accum_vtime(); }