| /* |
| * Copyright (c) 2003, 2010, Oracle and/or its affiliates. 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 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 "assembler_zero.inline.hpp" |
| #include "entry_zero.hpp" |
| #include "interpreter/cppInterpreter.hpp" |
| #include "memory/resourceArea.hpp" |
| #include "nativeInst_zero.hpp" |
| #include "oops/oop.inline.hpp" |
| #include "runtime/handles.hpp" |
| #include "runtime/sharedRuntime.hpp" |
| #include "runtime/stubRoutines.hpp" |
| #include "utilities/ostream.hpp" |
| #ifdef COMPILER1 |
| #include "c1/c1_Runtime1.hpp" |
| #endif |
| |
| // 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) { |
| assert(dest == SharedRuntime::get_handle_wrong_method_stub(), "should be"); |
| |
| #ifdef CC_INTERP |
| ((ZeroEntry*) verified_entry)->set_entry_point( |
| (address) CppInterpreter::normal_entry); |
| #else |
| Unimplemented(); |
| #endif // CC_INTERP |
| } |