/*+
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 * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.+
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 * Copyright 2008 Red Hat, Inc.+
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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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+
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#include "precompiled.hpp"+
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#include "assembler_zero.inline.hpp"+
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#include "memory/resourceArea.hpp"+
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#include "nativeInst_zero.hpp"+
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#include "oops/oop.inline.hpp"+
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#include "runtime/handles.hpp"+
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#include "runtime/sharedRuntime.hpp"+
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#include "runtime/stubRoutines.hpp"+
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#include "utilities/ostream.hpp"+
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#ifdef COMPILER1+
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#include "c1/c1_Runtime1.hpp"+
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#endif+
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+
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// This method is called by nmethod::make_not_entrant_or_zombie to+
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// insert a jump to SharedRuntime::get_handle_wrong_method_stub()+
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// (dest) at the start of a compiled method (verified_entry) to avoid+
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// a race where a method is invoked while being made non-entrant.+
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//+
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// In Shark, verified_entry is a pointer to a SharkEntry.  We can+
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// handle this simply by changing it's entry point to point at the+
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// interpreter.  This only works because the interpreter and Shark+
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// calling conventions are the same.+
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+
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void NativeJump::patch_verified_entry(address entry,+
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                                      address verified_entry,+
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                                      address dest) {+
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  assert(dest == SharedRuntime::get_handle_wrong_method_stub(), "should be");+
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+
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#ifdef CC_INTERP+
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  ((ZeroEntry*) verified_entry)->set_entry_point(+
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    (address) CppInterpreter::normal_entry);+
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#else+
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  Unimplemented();+
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#endif // CC_INTERP+
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}+
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