51 lines
2.0 KiB
C++
51 lines
2.0 KiB
C++
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/*
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* Copyright 2003-2007 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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#include "incls/_precompiled.incl"
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#include "incls/_nativeInst_zero.cpp.incl"
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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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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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#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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