/*

 * Copyright (c) 1997, 2018, 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

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 */

#ifndef CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP

#define CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP

#include "asm/macroAssembler.hpp"

#include "code/vmreg.inline.hpp"

#include "utilities/align.hpp"

// Inline functions for SPARC frames:

// Constructors

inline frame::frame() {

  _pc = NULL;

  _sp = NULL;

  _younger_sp = NULL;

  _cb = NULL;

  _deopt_state = unknown;

  _sp_adjustment_by_callee = 0;

}

// Accessors:

inline bool frame::equal(frame other) const {

  bool ret =  sp() == other.sp()

           && fp() == other.fp()

           && pc() == other.pc();

  assert(!ret || ret && cb() == other.cb() && _deopt_state == other._deopt_state, "inconsistent construction");

  return ret;

}

// Return 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(void) const { return unextended_sp(); }

// Relationals on frames based

// Return true if the frame is younger (more recent activation) than the frame represented by id

inline bool frame::is_younger(intptr_t* id) const { assert(this->id() != NULL && id != NULL, "NULL frame id");

                                                    return this->id() < id ; }

// Return true if the frame is older (less recent activation) than the frame represented by id

inline bool frame::is_older(intptr_t* id) const   { assert(this->id() != NULL && id != NULL, "NULL frame id");

                                                    return this->id() > id ; }

inline int frame::frame_size(RegisterMap* map) const { return sender_sp() - sp(); }

inline intptr_t* frame::link() const { return (intptr_t *)(fp()[FP->sp_offset_in_saved_window()] + STACK_BIAS); }

inline intptr_t* frame::unextended_sp() const { return sp() + _sp_adjustment_by_callee; }

// return address:

inline address  frame::sender_pc()        const    { return *I7_addr() + pc_return_offset; }

inline address* frame::I7_addr() const  { return (address*) &sp()[ I7->sp_offset_in_saved_window()]; }

inline address* frame::I0_addr() const  { return (address*) &sp()[ I0->sp_offset_in_saved_window()]; }

inline address* frame::O7_addr() const  { return (address*) &younger_sp()[ I7->sp_offset_in_saved_window()]; }

inline address* frame::O0_addr() const  { return (address*) &younger_sp()[ I0->sp_offset_in_saved_window()]; }

inline intptr_t*    frame::sender_sp() const  { return fp(); }

inline intptr_t* frame::real_fp() const { return fp(); }

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

  return (intptr_t**) sp_addr_at( Llocals->sp_offset_in_saved_window());

}

inline intptr_t* frame::interpreter_frame_bcp_addr() const {

  return (intptr_t*) sp_addr_at( Lbcp->sp_offset_in_saved_window());

}

inline intptr_t* frame::interpreter_frame_mdp_addr() const {

  // %%%%% reinterpreting ImethodDataPtr as a mdx

  return (intptr_t*) sp_addr_at( ImethodDataPtr->sp_offset_in_saved_window());

}

// bottom(base) of the expression stack (highest address)

inline intptr_t* frame::interpreter_frame_expression_stack() const {

  return (intptr_t*)interpreter_frame_monitors() - 1;

}

// top of expression stack (lowest address)

inline intptr_t* frame::interpreter_frame_tos_address() const {

  return *interpreter_frame_esp_addr() + 1;

}

inline BasicObjectLock** frame::interpreter_frame_monitors_addr() const {

  return (BasicObjectLock**) sp_addr_at(Lmonitors->sp_offset_in_saved_window());

}

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

  return (intptr_t**)sp_addr_at(Lesp->sp_offset_in_saved_window());

}

inline void frame::interpreter_frame_set_tos_address( intptr_t* x ) {

  *interpreter_frame_esp_addr() = x - 1;

}

// monitor elements

// in keeping with Intel side: end is lower in memory than begin;

// and beginning element is oldest element

// Also begin is one past last monitor.

inline BasicObjectLock* frame::interpreter_frame_monitor_begin()       const  {

  int rounded_vm_local_words = align_up((int)frame::interpreter_frame_vm_local_words, WordsPerLong);

  return (BasicObjectLock *)fp_addr_at(-rounded_vm_local_words);

}

inline BasicObjectLock* frame::interpreter_frame_monitor_end()         const  {

  return interpreter_frame_monitors();

}

inline void frame::interpreter_frame_set_monitor_end(BasicObjectLock* value) {

  interpreter_frame_set_monitors(value);

}

inline int frame::interpreter_frame_monitor_size() {

  return align_up(BasicObjectLock::size(), WordsPerLong);

}

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

  return (Method**)sp_addr_at( Lmethod->sp_offset_in_saved_window());

}

inline BasicObjectLock* frame::interpreter_frame_monitors() const {

  return *interpreter_frame_monitors_addr();

}

inline void frame::interpreter_frame_set_monitors(BasicObjectLock* monitors) {

  *interpreter_frame_monitors_addr() = monitors;

}

inline oop* frame::interpreter_frame_mirror_addr() const {

  return (oop*)(fp() + interpreter_frame_mirror_offset);

}

// Constant pool cache

// where LcpoolCache is saved:

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

    return (ConstantPoolCache**)sp_addr_at(LcpoolCache->sp_offset_in_saved_window());

  }

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

  return (ConstantPoolCache**)sp_addr_at( LcpoolCache->sp_offset_in_saved_window());

}

inline oop* frame::interpreter_frame_temp_oop_addr() const {

  return (oop *)(fp() + interpreter_frame_oop_temp_offset);

}

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

  // note: adjust this code if the link argument in StubGenerator::call_stub() changes!

  const Argument link = Argument(0, false);

  return (JavaCallWrapper**)&sp()[link.as_in().as_register()->sp_offset_in_saved_window()];

}

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

  return *((oop*) map->location(O0->as_VMReg()));

}

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

  *((oop*) map->location(O0->as_VMReg())) = obj;

}

#endif // CPU_SPARC_VM_FRAME_SPARC_INLINE_HPP