ecoff_object.cc revision 11793
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 3111793Sbrandon.potter@amd.com#include "base/loader/ecoff_object.hh" 3211793Sbrandon.potter@amd.com 3312SN/A#include <string> 3412SN/A 357676Snate@binkert.org#include "base/loader/symtab.hh" 362439SN/A#include "base/misc.hh" 377676Snate@binkert.org#include "base/trace.hh" 387676Snate@binkert.org#include "base/types.hh" 398232Snate@binkert.org#include "debug/Loader.hh" 4012SN/A 417676Snate@binkert.org// Only alpha will be able to load ecoff files for now. 427676Snate@binkert.org// base/types.hh and ecoff_machdep.h must be before the other .h files 4311320Ssteve.reinhardt@amd.com// because they are are gathered from other code bases and require some 447676Snate@binkert.org// typedefs from those files. 457676Snate@binkert.org#include "arch/alpha/ecoff_machdep.h" 4656SN/A#include "base/loader/coff_sym.h" 4756SN/A#include "base/loader/coff_symconst.h" 487676Snate@binkert.org#include "base/loader/exec_ecoff.h" 4912SN/A 5012SN/Ausing namespace std; 5112SN/A 5212SN/AObjectFile * 5310880SCurtis.Dunham@arm.comEcoffObject::tryFile(const string &fname, size_t len, uint8_t *data) 5412SN/A{ 5512SN/A if (((ecoff_filehdr *)data)->f_magic == ECOFF_MAGIC_ALPHA) { 5612SN/A // it's Alpha ECOFF 5710880SCurtis.Dunham@arm.com return new EcoffObject(fname, len, data, 58360SN/A ObjectFile::Alpha, ObjectFile::Tru64); 5912SN/A } 6012SN/A else { 6112SN/A return NULL; 6212SN/A } 6312SN/A} 6412SN/A 6512SN/A 6610880SCurtis.Dunham@arm.comEcoffObject::EcoffObject(const string &_filename, size_t _len, uint8_t *_data, 67360SN/A Arch _arch, OpSys _opSys) 6810880SCurtis.Dunham@arm.com : ObjectFile(_filename, _len, _data, _arch, _opSys) 6912SN/A{ 7012SN/A execHdr = (ecoff_exechdr *)fileData; 7112SN/A fileHdr = &(execHdr->f); 7212SN/A aoutHdr = &(execHdr->a); 7312SN/A 7412SN/A entry = aoutHdr->entry; 7512SN/A 7612SN/A text.baseAddr = aoutHdr->text_start; 7712SN/A text.size = aoutHdr->tsize; 782420SN/A text.fileImage = fileData + ECOFF_TXTOFF(execHdr); 7912SN/A 8012SN/A data.baseAddr = aoutHdr->data_start; 8112SN/A data.size = aoutHdr->dsize; 822420SN/A data.fileImage = fileData + ECOFF_DATOFF(execHdr); 8312SN/A 8412SN/A bss.baseAddr = aoutHdr->bss_start; 8512SN/A bss.size = aoutHdr->bsize; 862420SN/A bss.fileImage = NULL; 8712SN/A 8812SN/A DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n", 8912SN/A text.baseAddr, text.size, data.baseAddr, data.size, 9012SN/A bss.baseAddr, bss.size); 9112SN/A} 9212SN/A 9311392Sbrandon.potter@amd.combool 9411392Sbrandon.potter@amd.comEcoffObject::loadAllSymbols(SymbolTable *symtab, Addr base, Addr offset, 9511392Sbrandon.potter@amd.com Addr addr_mask) 9611392Sbrandon.potter@amd.com{ 9711392Sbrandon.potter@amd.com bool retval = loadGlobalSymbols(symtab, base, offset, addr_mask); 9811392Sbrandon.potter@amd.com retval = retval && loadLocalSymbols(symtab, base, offset, addr_mask); 9911392Sbrandon.potter@amd.com return retval; 10011392Sbrandon.potter@amd.com} 10112SN/A 10212SN/Abool 10311392Sbrandon.potter@amd.comEcoffObject::loadGlobalSymbols(SymbolTable *symtab, Addr base, Addr offset, 10411392Sbrandon.potter@amd.com Addr addr_mask) 10512SN/A{ 10612SN/A if (!symtab) 10712SN/A return false; 10812SN/A 10912SN/A if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) { 1101252SN/A warn("loadGlobalSymbols: wrong magic on %s\n", filename); 11112SN/A return false; 11212SN/A } 11312SN/A 11412SN/A ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr); 11512SN/A if (syms->magic != magicSym2) { 1161252SN/A warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename); 1171252SN/A return false; 11812SN/A } 11912SN/A 12012SN/A ecoff_extsym *ext_syms = (ecoff_extsym *)(fileData + syms->cbExtOffset); 12112SN/A 12212SN/A char *ext_strings = (char *)(fileData + syms->cbSsExtOffset); 12312SN/A for (int i = 0; i < syms->iextMax; i++) { 12412SN/A ecoff_sym *entry = &(ext_syms[i].asym); 12512SN/A if (entry->iss != -1) 12612SN/A symtab->insert(entry->value, ext_strings + entry->iss); 12712SN/A } 12812SN/A 12912SN/A return true; 13012SN/A} 13112SN/A 13212SN/Abool 13311392Sbrandon.potter@amd.comEcoffObject::loadLocalSymbols(SymbolTable *symtab, Addr base, Addr offset, 13411392Sbrandon.potter@amd.com Addr addr_mask) 13512SN/A{ 13612SN/A if (!symtab) 13712SN/A return false; 13812SN/A 13912SN/A if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) { 1401252SN/A warn("loadGlobalSymbols: wrong magic on %s\n", filename); 14112SN/A return false; 14212SN/A } 14312SN/A 14412SN/A ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr); 14512SN/A if (syms->magic != magicSym2) { 1461252SN/A warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename); 1471252SN/A return false; 14812SN/A } 14912SN/A 15012SN/A ecoff_sym *local_syms = (ecoff_sym *)(fileData + syms->cbSymOffset); 15112SN/A char *local_strings = (char *)(fileData + syms->cbSsOffset); 15212SN/A ecoff_fdr *fdesc = (ecoff_fdr *)(fileData + syms->cbFdOffset); 15312SN/A 15412SN/A for (int i = 0; i < syms->ifdMax; i++) { 15512SN/A ecoff_sym *entry = (ecoff_sym *)(local_syms + fdesc[i].isymBase); 15612SN/A char *strings = (char *)(local_strings + fdesc[i].issBase); 15712SN/A for (int j = 0; j < fdesc[i].csym; j++) { 15812SN/A if (entry[j].st == stGlobal || entry[j].st == stProc) 15912SN/A if (entry[j].iss != -1) 16012SN/A symtab->insert(entry[j].value, strings + entry[j].iss); 16112SN/A } 16212SN/A } 16312SN/A 16412SN/A for (int i = 0; i < syms->isymMax; i++) { 16512SN/A ecoff_sym *entry = &(local_syms[i]); 16612SN/A if (entry->st == stProc) 16712SN/A symtab->insert(entry->value, local_strings + entry->iss); 16812SN/A } 16912SN/A 17012SN/A return true; 17112SN/A} 172