Mercurial > hg > truffle
view src/share/vm/prims/jvmtiUtil.cpp @ 17776:9ab9f254cfe2
6653795: C2 intrinsic for Unsafe.getAddress performs pointer sign extension on 32-bit systems
Summary: Native pointers less than 64 bits wide should be extended as an unsigned number.
Reviewed-by: kvn, kevinw
author | poonam |
---|---|
date | Mon, 24 Mar 2014 08:43:10 -0700 |
parents | b9a9ed0f8eeb |
children |
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/* * Copyright (c) 2003, 2012, Oracle and/or its affiliates. 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. * */ #include "precompiled.hpp" #include "prims/jvmtiUtil.hpp" #include "runtime/handles.hpp" #include "runtime/handles.inline.hpp" #include "runtime/interfaceSupport.hpp" #include "runtime/vm_operations.hpp" #include "utilities/exceptions.hpp" // // class JvmtiUtil // ResourceArea* JvmtiUtil::_single_threaded_resource_area = NULL; ResourceArea* JvmtiUtil::single_threaded_resource_area() { if (_single_threaded_resource_area == NULL) { // lazily create the single threaded resource area // pick a size which is not a standard since the pools don't exist yet _single_threaded_resource_area = new (mtInternal) ResourceArea(Chunk::non_pool_size); } return _single_threaded_resource_area; }