aout_object.cc revision 7676
112SN/A/* 21762SN/A * Copyright (c) 2003-2005 The Regents of The University of Michigan 312SN/A * All rights reserved. 412SN/A * 512SN/A * Redistribution and use in source and binary forms, with or without 612SN/A * modification, are permitted provided that the following conditions are 712SN/A * met: redistributions of source code must retain the above copyright 812SN/A * notice, this list of conditions and the following disclaimer; 912SN/A * redistributions in binary form must reproduce the above copyright 1012SN/A * notice, this list of conditions and the following disclaimer in the 1112SN/A * documentation and/or other materials provided with the distribution; 1212SN/A * neither the name of the copyright holders nor the names of its 1312SN/A * contributors may be used to endorse or promote products derived from 1412SN/A * this software without specific prior written permission. 1512SN/A * 1612SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1712SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1812SN/A * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1912SN/A * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2012SN/A * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2112SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2212SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2312SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2412SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2512SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2612SN/A * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 272665Ssaidi@eecs.umich.edu * 282665Ssaidi@eecs.umich.edu * Authors: Steve Reinhardt 2912SN/A */ 3012SN/A 3112SN/A#include <string> 3212SN/A 3356SN/A#include "base/loader/aout_object.hh" 3456SN/A#include "base/loader/symtab.hh" 357676Snate@binkert.org#include "base/trace.hh" 3656SN/A#include "base/loader/exec_aout.h" 3712SN/A 3812SN/Ausing namespace std; 3912SN/A 4012SN/AObjectFile * 4112SN/AAoutObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data) 4212SN/A{ 4312SN/A if (!N_BADMAG(*(aout_exechdr *)data)) { 44360SN/A // right now this is only used for Alpha PAL code 45360SN/A return new AoutObject(fname, fd, len, data, 46360SN/A ObjectFile::Alpha, ObjectFile::UnknownOpSys); 4712SN/A } 4812SN/A else { 4912SN/A return NULL; 5012SN/A } 5112SN/A} 5212SN/A 5312SN/A 5412SN/AAoutObject::AoutObject(const string &_filename, int _fd, 55360SN/A size_t _len, uint8_t *_data, 56360SN/A Arch _arch, OpSys _opSys) 57360SN/A : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys) 5812SN/A{ 5912SN/A execHdr = (aout_exechdr *)fileData; 6012SN/A 6112SN/A entry = execHdr->entry; 6212SN/A 6312SN/A text.baseAddr = N_TXTADDR(*execHdr); 6412SN/A text.size = execHdr->tsize; 652420SN/A text.fileImage = fileData + N_TXTOFF(*execHdr); 6612SN/A 6712SN/A data.baseAddr = N_DATADDR(*execHdr); 6812SN/A data.size = execHdr->dsize; 692420SN/A data.fileImage = fileData + N_DATOFF(*execHdr); 7012SN/A 7112SN/A bss.baseAddr = N_BSSADDR(*execHdr); 7212SN/A bss.size = execHdr->bsize; 732420SN/A bss.fileImage = NULL; 7412SN/A 7512SN/A DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n", 7612SN/A text.baseAddr, text.size, data.baseAddr, data.size, 7712SN/A bss.baseAddr, bss.size); 7812SN/A} 7912SN/A 8012SN/A 8112SN/Abool 823812Ssaidi@eecs.umich.eduAoutObject::loadGlobalSymbols(SymbolTable *symtab, Addr addrMask) 8312SN/A{ 8412SN/A // a.out symbols not supported yet 8512SN/A return false; 8612SN/A} 8712SN/A 8812SN/Abool 893812Ssaidi@eecs.umich.eduAoutObject::loadLocalSymbols(SymbolTable *symtab, Addr addrMask) 9012SN/A{ 9112SN/A // a.out symbols not supported yet 9212SN/A return false; 9312SN/A} 94