elf_object.hh revision 8229
112966SMatteo.Andreozzi@arm.com/* 212966SMatteo.Andreozzi@arm.com * Copyright (c) 2003-2005 The Regents of The University of Michigan 312966SMatteo.Andreozzi@arm.com * All rights reserved. 412966SMatteo.Andreozzi@arm.com * 512966SMatteo.Andreozzi@arm.com * Redistribution and use in source and binary forms, with or without 612966SMatteo.Andreozzi@arm.com * modification, are permitted provided that the following conditions are 712966SMatteo.Andreozzi@arm.com * met: redistributions of source code must retain the above copyright 812966SMatteo.Andreozzi@arm.com * notice, this list of conditions and the following disclaimer; 912966SMatteo.Andreozzi@arm.com * redistributions in binary form must reproduce the above copyright 1012966SMatteo.Andreozzi@arm.com * notice, this list of conditions and the following disclaimer in the 1112966SMatteo.Andreozzi@arm.com * documentation and/or other materials provided with the distribution; 1212966SMatteo.Andreozzi@arm.com * neither the name of the copyright holders nor the names of its 1312966SMatteo.Andreozzi@arm.com * contributors may be used to endorse or promote products derived from 1412966SMatteo.Andreozzi@arm.com * this software without specific prior written permission. 1512966SMatteo.Andreozzi@arm.com * 1612966SMatteo.Andreozzi@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1712966SMatteo.Andreozzi@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1812966SMatteo.Andreozzi@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1912966SMatteo.Andreozzi@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2012966SMatteo.Andreozzi@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2112966SMatteo.Andreozzi@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2212966SMatteo.Andreozzi@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2312966SMatteo.Andreozzi@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2412966SMatteo.Andreozzi@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2512966SMatteo.Andreozzi@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2612966SMatteo.Andreozzi@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2712966SMatteo.Andreozzi@arm.com * 2812966SMatteo.Andreozzi@arm.com * Authors: Steve Reinhardt 2912966SMatteo.Andreozzi@arm.com */ 3012966SMatteo.Andreozzi@arm.com 3112966SMatteo.Andreozzi@arm.com#ifndef __ELF_OBJECT_HH__ 3212966SMatteo.Andreozzi@arm.com#define __ELF_OBJECT_HH__ 3312966SMatteo.Andreozzi@arm.com 3412966SMatteo.Andreozzi@arm.com#include <set> 3512966SMatteo.Andreozzi@arm.com#include <vector> 3612966SMatteo.Andreozzi@arm.com 3712966SMatteo.Andreozzi@arm.com#include "base/loader/object_file.hh" 3812966SMatteo.Andreozzi@arm.com 3912966SMatteo.Andreozzi@arm.comclass ElfObject : public ObjectFile 4012966SMatteo.Andreozzi@arm.com{ 4112966SMatteo.Andreozzi@arm.com protected: 4212966SMatteo.Andreozzi@arm.com 4312966SMatteo.Andreozzi@arm.com //The global definition of a "Section" is closest to elf's segments. 4412966SMatteo.Andreozzi@arm.com typedef ObjectFile::Section Segment; 4512966SMatteo.Andreozzi@arm.com 4612966SMatteo.Andreozzi@arm.com //These values are provided to a linux process by the kernel, so we 4712966SMatteo.Andreozzi@arm.com //need to keep them around. 4812966SMatteo.Andreozzi@arm.com Addr _programHeaderTable; 4912966SMatteo.Andreozzi@arm.com uint16_t _programHeaderSize; 5012966SMatteo.Andreozzi@arm.com uint16_t _programHeaderCount; 5112966SMatteo.Andreozzi@arm.com std::set<std::string> sectionNames; 5212966SMatteo.Andreozzi@arm.com 5312966SMatteo.Andreozzi@arm.com /// Helper functions for loadGlobalSymbols() and loadLocalSymbols(). 5412966SMatteo.Andreozzi@arm.com bool loadSomeSymbols(SymbolTable *symtab, int binding, Addr mask); 5512966SMatteo.Andreozzi@arm.com 5612966SMatteo.Andreozzi@arm.com ElfObject(const std::string &_filename, int _fd, 5712966SMatteo.Andreozzi@arm.com size_t _len, uint8_t *_data, 5812966SMatteo.Andreozzi@arm.com Arch _arch, OpSys _opSys); 5912966SMatteo.Andreozzi@arm.com 6012966SMatteo.Andreozzi@arm.com void getSections(); 6112966SMatteo.Andreozzi@arm.com bool sectionExists(std::string sec); 6212966SMatteo.Andreozzi@arm.com 6312966SMatteo.Andreozzi@arm.com std::vector<Segment> extraSegments; 6412966SMatteo.Andreozzi@arm.com 6512966SMatteo.Andreozzi@arm.com public: 6612966SMatteo.Andreozzi@arm.com virtual ~ElfObject() {} 6712966SMatteo.Andreozzi@arm.com 6812966SMatteo.Andreozzi@arm.com bool loadSections(Port *memPort, 6912966SMatteo.Andreozzi@arm.com Addr addrMask = std::numeric_limits<Addr>::max()); 7012966SMatteo.Andreozzi@arm.com virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr addrMask = 7112966SMatteo.Andreozzi@arm.com std::numeric_limits<Addr>::max()); 7212966SMatteo.Andreozzi@arm.com virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask = 7312966SMatteo.Andreozzi@arm.com std::numeric_limits<Addr>::max()); 7412966SMatteo.Andreozzi@arm.com 7512966SMatteo.Andreozzi@arm.com virtual bool isDynamic() { return sectionExists(".interp"); } 7612966SMatteo.Andreozzi@arm.com virtual bool hasTLS() { return sectionExists(".tbss"); } 7712966SMatteo.Andreozzi@arm.com 7812966SMatteo.Andreozzi@arm.com static ObjectFile *tryFile(const std::string &fname, int fd, 7912966SMatteo.Andreozzi@arm.com size_t len, uint8_t *data); 8012966SMatteo.Andreozzi@arm.com Addr programHeaderTable() {return _programHeaderTable;} 8112966SMatteo.Andreozzi@arm.com uint16_t programHeaderSize() {return _programHeaderSize;} 82 uint16_t programHeaderCount() {return _programHeaderCount;} 83}; 84 85#endif // __ELF_OBJECT_HH__ 86