/*

 * Copyright 2007, 2008, 2009, 2010 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.

 *

 */

#ifndef CPU_ZERO_VM_FRAME_ZERO_INLINE_HPP

#define CPU_ZERO_VM_FRAME_ZERO_INLINE_HPP

#include "code/codeCache.hpp"

// Constructors

inline frame::frame() {

  _zeroframe = NULL;

  _sp = NULL;

  _pc = NULL;

  _cb = NULL;

  _deopt_state = unknown;

}

inline address  frame::sender_pc()           const { ShouldNotCallThis(); return NULL; }

inline frame::frame(ZeroFrame* zf, intptr_t* sp) {

  _zeroframe = zf;

  _sp = sp;

  switch (zeroframe()->type()) {

  case ZeroFrame::ENTRY_FRAME:

    _pc = StubRoutines::call_stub_return_pc();

    _cb = NULL;

    _deopt_state = not_deoptimized;

    break;

  case ZeroFrame::INTERPRETER_FRAME:

    _pc = NULL;

    _cb = NULL;

    _deopt_state = not_deoptimized;

    break;

  case ZeroFrame::SHARK_FRAME: {

    _pc = zero_sharkframe()->pc();

    _cb = CodeCache::find_blob_unsafe(pc());

    if (original_pc != NULL) {

      _pc = original_pc;

      _deopt_state = is_deoptimized;

    } else {

      _deopt_state = not_deoptimized;

    }

    break;

  }

  case ZeroFrame::FAKE_STUB_FRAME:

    _pc = NULL;

    _cb = NULL;

    _deopt_state = not_deoptimized;

    break;

  default:

    ShouldNotReachHere();

  }

}

// Accessors

inline intptr_t* frame::sender_sp() const {

  return fp() + 1;

}

inline intptr_t* frame::real_fp() const {

  return fp();

}

inline intptr_t* frame::link() const {

  ShouldNotCallThis();

  return NULL;

}

#ifdef CC_INTERP

inline interpreterState frame::get_interpreterState() const {

  return zero_interpreterframe()->interpreter_state();

}

inline intptr_t** frame::interpreter_frame_locals_addr() const {

  return &(get_interpreterState()->_locals);

}

inline intptr_t* frame::interpreter_frame_bcp_addr() const {

  return (intptr_t*) &(get_interpreterState()->_bcp);

}

inline ConstantPoolCache** frame::interpreter_frame_cache_addr() const {

  return &(get_interpreterState()->_constants);

}

inline Method** frame::interpreter_frame_method_addr() const {

  return &(get_interpreterState()->_method);

}

inline intptr_t* frame::interpreter_frame_mdp_addr() const {

  return (intptr_t*) &(get_interpreterState()->_mdx);

}

inline intptr_t* frame::interpreter_frame_tos_address() const {

  return get_interpreterState()->_stack + 1;

}

inline oop* frame::interpreter_frame_temp_oop_addr() const {

  interpreterState istate = get_interpreterState();

  return (oop *)&istate->_oop_temp;

}

#endif // CC_INTERP

inline int frame::interpreter_frame_monitor_size() {

  return BasicObjectLock::size();

}

inline intptr_t* frame::interpreter_frame_expression_stack() const {

  intptr_t* monitor_end = (intptr_t*) interpreter_frame_monitor_end();

  return monitor_end - 1;

}

inline jint frame::interpreter_frame_expression_stack_direction() {

  return -1;

}

// Return a unique id for this frame. The id must have a value where

// we can distinguish identity and younger/older relationship. NULL

// represents an invalid (incomparable) frame.

inline intptr_t* frame::id() const {

  return fp();

}

inline JavaCallWrapper** frame::entry_frame_call_wrapper_addr() const {

  return zero_entryframe()->call_wrapper();

}

inline void frame::set_saved_oop_result(RegisterMap* map, oop obj) {

  ShouldNotCallThis();

}

inline oop frame::saved_oop_result(RegisterMap* map) const {

  ShouldNotCallThis();

  return NULL;

}

inline bool frame::is_older(intptr_t* id) const {

  ShouldNotCallThis();

  return false;

}

inline intptr_t* frame::entry_frame_argument_at(int offset) const {

  ShouldNotCallThis();

  return NULL;

}

inline intptr_t* frame::unextended_sp() const {

  if (zeroframe()->is_shark_frame())

    return zero_sharkframe()->unextended_sp();

  else

    return (intptr_t *) -1;

}

#endif // CPU_ZERO_VM_FRAME_ZERO_INLINE_HPP