ecoff_object.cc revision 11392
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/ecoff_object.hh" 347676Snate@binkert.org#include "base/loader/symtab.hh" 352439SN/A#include "base/misc.hh" 367676Snate@binkert.org#include "base/trace.hh" 377676Snate@binkert.org#include "base/types.hh" 388232Snate@binkert.org#include "debug/Loader.hh" 3912SN/A 407676Snate@binkert.org// Only alpha will be able to load ecoff files for now. 417676Snate@binkert.org// base/types.hh and ecoff_machdep.h must be before the other .h files 4211320Ssteve.reinhardt@amd.com// because they are are gathered from other code bases and require some 437676Snate@binkert.org// typedefs from those files. 447676Snate@binkert.org#include "arch/alpha/ecoff_machdep.h" 4556SN/A#include "base/loader/coff_sym.h" 4656SN/A#include "base/loader/coff_symconst.h" 477676Snate@binkert.org#include "base/loader/exec_ecoff.h" 4812SN/A 4912SN/Ausing namespace std; 5012SN/A 5112SN/AObjectFile * 5210880SCurtis.Dunham@arm.comEcoffObject::tryFile(const string &fname, size_t len, uint8_t *data) 5312SN/A{ 5412SN/A if (((ecoff_filehdr *)data)->f_magic == ECOFF_MAGIC_ALPHA) { 5512SN/A // it's Alpha ECOFF 5610880SCurtis.Dunham@arm.com return new EcoffObject(fname, len, data, 57360SN/A ObjectFile::Alpha, ObjectFile::Tru64); 5812SN/A } 5912SN/A else { 6012SN/A return NULL; 6112SN/A } 6212SN/A} 6312SN/A 6412SN/A 6510880SCurtis.Dunham@arm.comEcoffObject::EcoffObject(const string &_filename, size_t _len, uint8_t *_data, 66360SN/A Arch _arch, OpSys _opSys) 6710880SCurtis.Dunham@arm.com : ObjectFile(_filename, _len, _data, _arch, _opSys) 6812SN/A{ 6912SN/A execHdr = (ecoff_exechdr *)fileData; 7012SN/A fileHdr = &(execHdr->f); 7112SN/A aoutHdr = &(execHdr->a); 7212SN/A 7312SN/A entry = aoutHdr->entry; 7412SN/A 7512SN/A text.baseAddr = aoutHdr->text_start; 7612SN/A text.size = aoutHdr->tsize; 772420SN/A text.fileImage = fileData + ECOFF_TXTOFF(execHdr); 7812SN/A 7912SN/A data.baseAddr = aoutHdr->data_start; 8012SN/A data.size = aoutHdr->dsize; 812420SN/A data.fileImage = fileData + ECOFF_DATOFF(execHdr); 8212SN/A 8312SN/A bss.baseAddr = aoutHdr->bss_start; 8412SN/A bss.size = aoutHdr->bsize; 852420SN/A bss.fileImage = NULL; 8612SN/A 8712SN/A DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n", 8812SN/A text.baseAddr, text.size, data.baseAddr, data.size, 8912SN/A bss.baseAddr, bss.size); 9012SN/A} 9112SN/A 9211392Sbrandon.potter@amd.combool 9311392Sbrandon.potter@amd.comEcoffObject::loadAllSymbols(SymbolTable *symtab, Addr base, Addr offset, 9411392Sbrandon.potter@amd.com Addr addr_mask) 9511392Sbrandon.potter@amd.com{ 9611392Sbrandon.potter@amd.com bool retval = loadGlobalSymbols(symtab, base, offset, addr_mask); 9711392Sbrandon.potter@amd.com retval = retval && loadLocalSymbols(symtab, base, offset, addr_mask); 9811392Sbrandon.potter@amd.com return retval; 9911392Sbrandon.potter@amd.com} 10012SN/A 10112SN/Abool 10211392Sbrandon.potter@amd.comEcoffObject::loadGlobalSymbols(SymbolTable *symtab, Addr base, Addr offset, 10311392Sbrandon.potter@amd.com Addr addr_mask) 10412SN/A{ 10512SN/A if (!symtab) 10612SN/A return false; 10712SN/A 10812SN/A if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) { 1091252SN/A warn("loadGlobalSymbols: wrong magic on %s\n", filename); 11012SN/A return false; 11112SN/A } 11212SN/A 11312SN/A ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr); 11412SN/A if (syms->magic != magicSym2) { 1151252SN/A warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename); 1161252SN/A return false; 11712SN/A } 11812SN/A 11912SN/A ecoff_extsym *ext_syms = (ecoff_extsym *)(fileData + syms->cbExtOffset); 12012SN/A 12112SN/A char *ext_strings = (char *)(fileData + syms->cbSsExtOffset); 12212SN/A for (int i = 0; i < syms->iextMax; i++) { 12312SN/A ecoff_sym *entry = &(ext_syms[i].asym); 12412SN/A if (entry->iss != -1) 12512SN/A symtab->insert(entry->value, ext_strings + entry->iss); 12612SN/A } 12712SN/A 12812SN/A return true; 12912SN/A} 13012SN/A 13112SN/Abool 13211392Sbrandon.potter@amd.comEcoffObject::loadLocalSymbols(SymbolTable *symtab, Addr base, Addr offset, 13311392Sbrandon.potter@amd.com Addr addr_mask) 13412SN/A{ 13512SN/A if (!symtab) 13612SN/A return false; 13712SN/A 13812SN/A if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) { 1391252SN/A warn("loadGlobalSymbols: wrong magic on %s\n", filename); 14012SN/A return false; 14112SN/A } 14212SN/A 14312SN/A ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr); 14412SN/A if (syms->magic != magicSym2) { 1451252SN/A warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename); 1461252SN/A return false; 14712SN/A } 14812SN/A 14912SN/A ecoff_sym *local_syms = (ecoff_sym *)(fileData + syms->cbSymOffset); 15012SN/A char *local_strings = (char *)(fileData + syms->cbSsOffset); 15112SN/A ecoff_fdr *fdesc = (ecoff_fdr *)(fileData + syms->cbFdOffset); 15212SN/A 15312SN/A for (int i = 0; i < syms->ifdMax; i++) { 15412SN/A ecoff_sym *entry = (ecoff_sym *)(local_syms + fdesc[i].isymBase); 15512SN/A char *strings = (char *)(local_strings + fdesc[i].issBase); 15612SN/A for (int j = 0; j < fdesc[i].csym; j++) { 15712SN/A if (entry[j].st == stGlobal || entry[j].st == stProc) 15812SN/A if (entry[j].iss != -1) 15912SN/A symtab->insert(entry[j].value, strings + entry[j].iss); 16012SN/A } 16112SN/A } 16212SN/A 16312SN/A for (int i = 0; i < syms->isymMax; i++) { 16412SN/A ecoff_sym *entry = &(local_syms[i]); 16512SN/A if (entry->st == stProc) 16612SN/A symtab->insert(entry->value, local_strings + entry->iss); 16712SN/A } 16812SN/A 16912SN/A return true; 17012SN/A} 171