/*
* Copyright ( c ) 1997 , 2019 , 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 .
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*/
#ifndef SHARE_UTILITIES_ELFSYMBOLTABLE_HPP
#define SHARE_UTILITIES_ELFSYMBOLTABLE_HPP
#if !defined (_WINDOWS) && !defined (__APPLE__)
#include "memory/allocation.hpp"
#include "utilities/decoder.hpp"
#include "utilities/elfFile.hpp"
/*
* symbol table object represents a symbol section in an elf file .
* Whenever possible , it will load all symbols from the corresponding section
* of the elf file into memory . Otherwise , it will walk the section in file
* to look up the symbol that nearest the given address .
*/
class ElfSymbolTable: public CHeapObj<mtInternal> {
friend class ElfFile;
private :
ElfSymbolTable* _next;
// file contains string table
FILE* const _fd;
// corresponding section
ElfSection _section;
NullDecoder::decoder_status _status;
public :
ElfSymbolTable(FILE* const file, Elf_Shdr& shdr);
~ElfSymbolTable();
// search the symbol that is nearest to the specified address.
bool lookup(address addr, int* stringtableIndex, int* posIndex, int* offset, ElfFuncDescTable* funcDescTable);
NullDecoder::decoder_status get_status() const { return _status; };
private :
ElfSymbolTable* next() const { return _next; }
void set_next(ElfSymbolTable* next) { _next = next; }
bool compare(const Elf_Sym* sym, address addr, int* stringtableIndex, int* posIndex, int* offset, ElfFuncDescTable* funcDescTable);
};
#endif // !_WINDOWS and !__APPLE__
#endif // SHARE_UTILITIES_ELFSYMBOLTABLE_HPP
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