| /* |
| * Copyright (c) 2003-2005 The Regents of The University of Michigan |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer; |
| * redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution; |
| * neither the name of the copyright holders nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * |
| * Authors: Steve Reinhardt |
| */ |
| |
| #include "base/loader/aout_object.hh" |
| |
| #include <string> |
| |
| #include "base/loader/exec_aout.h" |
| #include "base/loader/symtab.hh" |
| #include "base/trace.hh" |
| #include "debug/Loader.hh" |
| |
| using namespace std; |
| |
| ObjectFile * |
| AoutObject::tryFile(const string &fname, size_t len, uint8_t *data) |
| { |
| if (!N_BADMAG(*(aout_exechdr *)data)) { |
| // right now this is only used for Alpha PAL code |
| return new AoutObject(fname, len, data, |
| ObjectFile::Alpha, ObjectFile::UnknownOpSys); |
| } else { |
| return nullptr; |
| } |
| } |
| |
| |
| AoutObject::AoutObject(const string &_filename, |
| size_t _len, uint8_t *_data, |
| Arch _arch, OpSys _opSys) |
| : ObjectFile(_filename, _len, _data, _arch, _opSys) |
| { |
| execHdr = (aout_exechdr *)fileData; |
| entry = execHdr->entry; |
| } |
| |
| MemoryImage |
| AoutObject::buildImage() const |
| { |
| MemoryImage image({ |
| { "text", N_TXTADDR(*execHdr), |
| fileData + N_TXTOFF(*execHdr), execHdr->tsize }, |
| { "data", N_DATADDR(*execHdr), |
| fileData + N_DATOFF(*execHdr), execHdr->dsize }, |
| { "bss", N_BSSADDR(*execHdr), nullptr, execHdr->bsize} |
| }); |
| |
| for (auto &seg: image.segments()) |
| DPRINTFR(Loader, "%s\n", seg); |
| return image; |
| } |
| |
| |
| bool |
| AoutObject::loadAllSymbols(SymbolTable *symtab, Addr base, Addr offset, |
| Addr addr_mask) |
| { |
| return false; |
| } |
| |
| bool |
| AoutObject::loadGlobalSymbols(SymbolTable *symtab, Addr base, Addr offset, |
| Addr addr_mask) |
| { |
| // a.out symbols not supported yet |
| return false; |
| } |
| |
| bool |
| AoutObject::loadLocalSymbols(SymbolTable *symtab, Addr base, Addr offset, |
| Addr addr_mask) |
| { |
| // a.out symbols not supported yet |
| return false; |
| } |