Mercurial > hg > release > icedtea6-1.3

/*
 * Copyright 2003-2007 Sun Microsystems, Inc.  All Rights Reserved.
 * Copyright 2008 Red Hat, Inc.
 * 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/_nativeInst_zero.cpp.incl"

// This method is called by nmethod::make_not_entrant_or_zombie to
// insert a jump to SharedRuntime::get_handle_wrong_method_stub()
// (dest) at the start of a compiled method (verified_entry) to avoid
// a race where a method is invoked while being made non-entrant.
//
// In Shark, verified_entry is a pointer to a SharkEntry.  We can
// handle this simply by changing it's entry point to point at the
// interpreter.  This only works because the interpreter and Shark
// calling conventions are the same.

void NativeJump::patch_verified_entry(address entry,
                                      address verified_entry,
                                      address dest)
{
#ifdef SHARK
  assert(dest == SharedRuntime::get_handle_wrong_method_stub(), "should be");

#ifdef CC_INTERP
  ((ZeroEntry*) verified_entry)->set_entry_point(CppInterpreter::normal_entry);
#else
  Unimplemented();
#endif // CC_INTERP
#else
  Unimplemented();
#endif // SHARK
}
author	Gary Benson <gbenson@redhat.com>
date	Tue, 30 Sep 2008 08:42:10 -0400
parents	1d3c3b0865e2
children