jdk

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/*
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 * Copyright (c) 2003, 2023, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "runtime/orderAccess.hpp"
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#include "runtime/stubRoutines.hpp"
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#ifndef PRODUCT
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#include "runtime/javaThread.hpp"
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#include "runtime/threads.hpp"
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#endif
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void OrderAccess::StubRoutines_fence() {
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  // Use a stub if it exists.  It may not exist during bootstrap so do
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  // nothing in that case but assert if no fence code exists after threads have been created
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  void (*func)() = CAST_TO_FN_PTR(void (*)(), StubRoutines::fence_entry());
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  if (func != nullptr) {
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    (*func)();
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    return;
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  }
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  assert(Threads::number_of_threads() == 0, "for bootstrap only");
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}
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#ifndef PRODUCT
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void OrderAccess::cross_modify_fence_verify() {
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    if (VerifyCrossModifyFence) {
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      JavaThread::current()->set_requires_cross_modify_fence(false);
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    }
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}
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#endif
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