/*

 * Copyright (c) 1997, 2011, Oracle and/or its affiliates. All rights reserved.

 * 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.

 *

 */

#ifndef SHARE_VM_INTERPRETER_CPPINTERPRETER_HPP

#define SHARE_VM_INTERPRETER_CPPINTERPRETER_HPP

#include "interpreter/abstractInterpreter.hpp"

#ifdef CC_INTERP

// This file contains the platform-independent parts

// of the c++ interpreter

class CppInterpreter: public AbstractInterpreter {

  friend class VMStructs;

  friend class Interpreter; // contains()

  friend class InterpreterGenerator; // result handlers

  friend class CppInterpreterGenerator; // result handlers

 public:

 protected:

  // tosca result -> stack result

  static address    _tosca_to_stack[number_of_result_handlers];  // converts tosca to C++ interpreter stack result

  // stack result -> stack result

  static address    _stack_to_stack[number_of_result_handlers];  // pass result between C++ interpreter calls

  // stack result -> native abi result

  static address    _stack_to_native_abi[number_of_result_handlers];  // converts C++ interpreter results to native abi

  // this is to allow frame and only frame to use contains().

  friend class      frame;

 public:

  // Initialization/debugging

  static void       initialize();

  // this only returns whether a pc is within generated code for the interpreter.

  // This is a moderately dubious interface for the c++ interpreter. Only

  // frame code and debug.cpp should be using it.

  static bool       contains(address pc);

 public:

  // No displatch table to switch so no need for these to do anything special

  static void notice_safepoints() {}

  static void ignore_safepoints() {}

  static address    native_result_to_tosca()                    { return (address)_native_abi_to_tosca; } // aka result handler

  static address    tosca_result_to_stack()                     { return (address)_tosca_to_stack; }

  static address    stack_result_to_stack()                     { return (address)_stack_to_stack; }

  static address    stack_result_to_native()                    { return (address)_stack_to_native_abi; }

  static address    native_result_to_tosca(int index)           { return _native_abi_to_tosca[index]; } // aka result handler

  static address    tosca_result_to_stack(int index)            { return _tosca_to_stack[index]; }

  static address    stack_result_to_stack(int index)            { return _stack_to_stack[index]; }

  static address    stack_result_to_native(int index)           { return _stack_to_native_abi[index]; }

  static address    deopt_entry   (TosState state, int length);

#ifdef TARGET_ARCH_x86

# include "cppInterpreter_x86.hpp"

#endif

#ifdef TARGET_ARCH_sparc

# include "cppInterpreter_sparc.hpp"

#endif

#ifdef TARGET_ARCH_zero

# include "cppInterpreter_zero.hpp"

#endif

#ifdef TARGET_ARCH_arm

# include "cppInterpreter_arm.hpp"

#endif

#ifdef TARGET_ARCH_ppc

# include "cppInterpreter_ppc.hpp"

#endif

};

#endif // CC_INTERP

#endif // SHARE_VM_INTERPRETER_CPPINTERPRETER_HPP