Mercurial > hg > truffle
view src/cpu/x86/vm/stubRoutines_x86_64.cpp @ 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 |
---|---|
date | Thu, 15 Apr 2010 15:52:55 -0700 |
parents | 9ee9cf798b59 |
children | c18cbe5936b8 |
line wrap: on
line source
/* * Copyright 2003-2008 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. * */ #include "incls/_precompiled.incl" #include "incls/_stubRoutines_x86_64.cpp.incl" // Implementation of the platform-specific part of StubRoutines - for // a description of how to extend it, see the stubRoutines.hpp file. address StubRoutines::x86::_get_previous_fp_entry = NULL; address StubRoutines::x86::_verify_mxcsr_entry = NULL; address StubRoutines::x86::_f2i_fixup = NULL; address StubRoutines::x86::_f2l_fixup = NULL; address StubRoutines::x86::_d2i_fixup = NULL; address StubRoutines::x86::_d2l_fixup = NULL; address StubRoutines::x86::_float_sign_mask = NULL; address StubRoutines::x86::_float_sign_flip = NULL; address StubRoutines::x86::_double_sign_mask = NULL; address StubRoutines::x86::_double_sign_flip = NULL; address StubRoutines::x86::_mxcsr_std = NULL;