object_file.hh revision 7095
112855Sgabeblack@google.com/* 212855Sgabeblack@google.com * Copyright (c) 2002-2004 The Regents of The University of Michigan 312855Sgabeblack@google.com * All rights reserved. 412855Sgabeblack@google.com * 512855Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 612855Sgabeblack@google.com * modification, are permitted provided that the following conditions are 712855Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 812855Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 912855Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 1012855Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1112855Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1212855Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1312855Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1412855Sgabeblack@google.com * this software without specific prior written permission. 1512855Sgabeblack@google.com * 1612855Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1712855Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1812855Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1912855Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2012855Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2112855Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2212855Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2312855Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2412855Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2512855Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2612855Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2712855Sgabeblack@google.com * 2812855Sgabeblack@google.com * Authors: Nathan Binkert 2912855Sgabeblack@google.com * Steve Reinhardt 3012855Sgabeblack@google.com */ 3112855Sgabeblack@google.com 3212855Sgabeblack@google.com#ifndef __OBJECT_FILE_HH__ 3312855Sgabeblack@google.com#define __OBJECT_FILE_HH__ 3412855Sgabeblack@google.com 3512855Sgabeblack@google.com#include <limits> 3612855Sgabeblack@google.com#include <string> 3712855Sgabeblack@google.com 3812855Sgabeblack@google.com#include "base/types.hh" 3912855Sgabeblack@google.com 4012855Sgabeblack@google.comclass Port; 4112855Sgabeblack@google.comclass SymbolTable; 4212855Sgabeblack@google.com 4312855Sgabeblack@google.comclass ObjectFile 4412855Sgabeblack@google.com{ 4512855Sgabeblack@google.com public: 4612855Sgabeblack@google.com 4712855Sgabeblack@google.com enum Arch { 4812855Sgabeblack@google.com UnknownArch, 4912855Sgabeblack@google.com Alpha, 5012855Sgabeblack@google.com SPARC64, 5112855Sgabeblack@google.com SPARC32, 5212855Sgabeblack@google.com Mips, 5312855Sgabeblack@google.com X86_64, 5412855Sgabeblack@google.com I386, 5512855Sgabeblack@google.com Arm, 5612855Sgabeblack@google.com Thumb, 5712855Sgabeblack@google.com Power 5812855Sgabeblack@google.com }; 5912855Sgabeblack@google.com 6012855Sgabeblack@google.com enum OpSys { 6112855Sgabeblack@google.com UnknownOpSys, 6212855Sgabeblack@google.com Tru64, 6312855Sgabeblack@google.com Linux, 6412855Sgabeblack@google.com Solaris, 6512855Sgabeblack@google.com LinuxArmOABI 6612855Sgabeblack@google.com }; 6712855Sgabeblack@google.com 6812855Sgabeblack@google.com protected: 69 const std::string filename; 70 int descriptor; 71 uint8_t *fileData; 72 size_t len; 73 74 Arch arch; 75 OpSys opSys; 76 77 ObjectFile(const std::string &_filename, int _fd, 78 size_t _len, uint8_t *_data, 79 Arch _arch, OpSys _opSys); 80 81 public: 82 virtual ~ObjectFile(); 83 84 void close(); 85 86 virtual bool loadSections(Port *memPort, Addr addrMask = 87 std::numeric_limits<Addr>::max()); 88 virtual bool loadGlobalSymbols(SymbolTable *symtab, Addr addrMask = 89 std::numeric_limits<Addr>::max()) = 0; 90 virtual bool loadLocalSymbols(SymbolTable *symtab, Addr addrMask = 91 std::numeric_limits<Addr>::max()) = 0; 92 93 virtual bool isDynamic() { return false; } 94 virtual bool hasTLS() { return false; } 95 96 Arch getArch() const { return arch; } 97 OpSys getOpSys() const { return opSys; } 98 99 protected: 100 101 struct Section { 102 Addr baseAddr; 103 uint8_t *fileImage; 104 size_t size; 105 }; 106 107 Addr entry; 108 Addr globalPtr; 109 110 Section text; 111 Section data; 112 Section bss; 113 114 bool loadSection(Section *sec, Port *memPort, Addr addrMask); 115 void setGlobalPointer(Addr global_ptr) { globalPtr = global_ptr; } 116 117 public: 118 Addr entryPoint() const { return entry; } 119 120 Addr globalPointer() const { return globalPtr; } 121 122 Addr textBase() const { return text.baseAddr; } 123 Addr dataBase() const { return data.baseAddr; } 124 Addr bssBase() const { return bss.baseAddr; } 125 126 size_t textSize() const { return text.size; } 127 size_t dataSize() const { return data.size; } 128 size_t bssSize() const { return bss.size; } 129 130 void setTextBase(Addr a) { text.baseAddr = a; } 131}; 132 133ObjectFile *createObjectFile(const std::string &fname, bool raw = false); 134 135 136#endif // __OBJECT_FILE_HH__ 137