object_file.hh revision 11392
11689SN/A/* 22329SN/A * Copyright (c) 2002-2004 The Regents of The University of Michigan 31689SN/A * All rights reserved. 41689SN/A * 51689SN/A * Redistribution and use in source and binary forms, with or without 61689SN/A * modification, are permitted provided that the following conditions are 71689SN/A * met: redistributions of source code must retain the above copyright 81689SN/A * notice, this list of conditions and the following disclaimer; 91689SN/A * redistributions in binary form must reproduce the above copyright 101689SN/A * notice, this list of conditions and the following disclaimer in the 111689SN/A * documentation and/or other materials provided with the distribution; 121689SN/A * neither the name of the copyright holders nor the names of its 131689SN/A * contributors may be used to endorse or promote products derived from 141689SN/A * this software without specific prior written permission. 151689SN/A * 161689SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 171689SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 181689SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 191689SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 201689SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 211689SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 221689SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 231689SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 241689SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 251689SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 261689SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Nathan Binkert 291689SN/A * Steve Reinhardt 301689SN/A */ 311717SN/A 321060SN/A#ifndef __OBJECT_FILE_HH__ 332292SN/A#define __OBJECT_FILE_HH__ 342292SN/A 351060SN/A#include <limits> 362292SN/A#include <string> 372292SN/A 382292SN/A#include "base/misc.hh" 392292SN/A#include "base/types.hh" 402292SN/A 412292SN/Aclass PortProxy; 422292SN/Aclass SymbolTable; 431060SN/A 442292SN/Aclass ObjectFile 452292SN/A{ 462348SN/A public: 472292SN/A 482292SN/A enum Arch { 492292SN/A UnknownArch, 502292SN/A Alpha, 512292SN/A SPARC64, 522292SN/A SPARC32, 532292SN/A Mips, 542292SN/A X86_64, 552292SN/A I386, 562292SN/A Arm64, 572292SN/A Arm, 582292SN/A Thumb, 592292SN/A Power 602292SN/A }; 612292SN/A 622292SN/A enum OpSys { 632292SN/A UnknownOpSys, 641060SN/A Tru64, 651060SN/A Linux, 661062SN/A Solaris, 671062SN/A LinuxArmOABI, 682292SN/A FreeBSD 691062SN/A }; 701062SN/A 712307SN/A protected: 721062SN/A const std::string filename; 731062SN/A uint8_t *fileData; 741062SN/A size_t len; 752307SN/A 761062SN/A Arch arch; 771062SN/A OpSys opSys; 782292SN/A 792307SN/A ObjectFile(const std::string &_filename, size_t _len, uint8_t *_data, 802292SN/A Arch _arch, OpSys _opSys); 812292SN/A 821062SN/A public: 832307SN/A virtual ~ObjectFile(); 841062SN/A 851062SN/A static const Addr maxAddr = std::numeric_limits<Addr>::max(); 861062SN/A 872307SN/A virtual bool loadSections(PortProxy& mem_proxy, 881062SN/A Addr mask = maxAddr, Addr offset = 0); 891062SN/A 902307SN/A virtual bool loadAllSymbols(SymbolTable *symtab, Addr base = 0, 912307SN/A Addr offset = 0, Addr mask = maxAddr) = 0; 922307SN/A virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr base = 0, 932307SN/A Addr offset = 0, Addr mask = maxAddr) = 0; 941062SN/A virtual bool loadLocalSymbols(SymbolTable *symtab, Addr base = 0, 952307SN/A Addr offset = 0, Addr mask = maxAddr) = 0; 961062SN/A virtual bool loadWeakSymbols(SymbolTable *symtab, Addr base = 0, 971062SN/A Addr offset = 0, Addr mask = maxAddr) 981062SN/A { return false; } 992307SN/A 1001062SN/A virtual ObjectFile *getInterpreter() const { return nullptr; } 1011062SN/A virtual bool relocatable() const { return false; } 1021062SN/A virtual Addr mapSize() const 1031062SN/A { panic("mapSize() should only be called on relocatable objects\n"); } 1042307SN/A virtual void updateBias(Addr bias_addr) 1051062SN/A { panic("updateBias() should only be called on relocatable objects\n"); } 1061062SN/A virtual Addr bias() const { return 0; } 1071062SN/A 1082307SN/A virtual bool hasTLS() { return false; } 1091062SN/A 1101062SN/A Arch getArch() const { return arch; } 1111062SN/A OpSys getOpSys() const { return opSys; } 1121062SN/A 1131060SN/A protected: 1141060SN/A 1152733Sktlim@umich.edu struct Section { 1161060SN/A Addr baseAddr; 1172292SN/A uint8_t *fileImage; 1181060SN/A size_t size; 1191060SN/A }; 1201060SN/A 1211060SN/A Addr entry; 1221060SN/A Addr globalPtr; 1232292SN/A 1241060SN/A Section text; 1252292SN/A Section data; 1261060SN/A Section bss; 1271060SN/A 1281060SN/A bool loadSection(Section *sec, PortProxy& mem_proxy, Addr mask, 1291060SN/A Addr offset = 0); 1301060SN/A void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; } 1311060SN/A 1321060SN/A public: 1331060SN/A Addr entryPoint() const { return entry; } 1341060SN/A 1351060SN/A Addr globalPointer() const { return globalPtr; } 1361060SN/A 1371060SN/A Addr textBase() const { return text.baseAddr; } 1381060SN/A Addr dataBase() const { return data.baseAddr; } 1392292SN/A Addr bssBase() const { return bss.baseAddr; } 1401060SN/A 1412292SN/A size_t textSize() const { return text.size; } 1421060SN/A size_t dataSize() const { return data.size; } 1431060SN/A size_t bssSize() const { return bss.size; } 1441060SN/A 1451060SN/A /* This function allows you to override the base address where 1461060SN/A * a binary is going to be loaded or set it if the binary is just a 1471060SN/A * blob that doesn't include an object header. 1481060SN/A * @param a address to load the binary/text section at 1491060SN/A */ 1502292SN/A void setTextBase(Addr a) { text.baseAddr = a; } 1511060SN/A}; 1522292SN/A 1531060SN/AObjectFile *createObjectFile(const std::string &fname, bool raw = false); 1541060SN/A 1551060SN/A 1561060SN/A#endif // __OBJECT_FILE_HH__ 1571060SN/A