/*
* Copyright ( c ) 2003 , 2020 , Oracle and / or its affiliates . All rights reserved .
* Copyright 2008 , 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
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*/
#ifndef CPU_ZERO_INTERPRETERFRAME_ZERO_HPP
#define CPU_ZERO_INTERPRETERFRAME_ZERO_HPP
#include "interpreter/zero/bytecodeInterpreter.hpp"
#include "oops/method.hpp"
#include "runtime/javaThread.hpp"
#include "stack_zero.hpp"
#include "utilities/align.hpp"
// | ... |
// +--------------------+ ------------------
// | stack slot n-1 | low addresses
// | ... |
// | stack slot 0 |
// | monitor 0 (maybe) |
// | ... |
// | interpreter state |
// | ... |
// | frame_type |
// | next_frame | high addresses
// +--------------------+ ------------------
// | ... |
class InterpreterFrame : public ZeroFrame {
friend class AbstractInterpreter;
private :
InterpreterFrame() : ZeroFrame() {
ShouldNotCallThis();
}
protected :
enum Layout {
istate_off = jf_header_words +
(align_up(sizeof (BytecodeInterpreter),
wordSize) >> LogBytesPerWord) - 1 ,
header_words
};
public :
static InterpreterFrame *build(Method* const method, TRAPS);
static InterpreterFrame *build(int size, TRAPS);
public :
interpreterState interpreter_state() const {
return (interpreterState) addr_of_word(istate_off);
}
public :
void identify_word(int frame_index,
int offset,
char * fieldbuf,
char * valuebuf,
int buflen) const ;
};
#endif // CPU_ZERO_INTERPRETERFRAME_ZERO_HPP
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