ecoff_object.cc revision 2420
114039Sstacze01@arm.com/* 214039Sstacze01@arm.com * Copyright (c) 2003-2005 The Regents of The University of Michigan 314039Sstacze01@arm.com * All rights reserved. 414039Sstacze01@arm.com * 514039Sstacze01@arm.com * Redistribution and use in source and binary forms, with or without 614039Sstacze01@arm.com * modification, are permitted provided that the following conditions are 714039Sstacze01@arm.com * met: redistributions of source code must retain the above copyright 814039Sstacze01@arm.com * notice, this list of conditions and the following disclaimer; 914039Sstacze01@arm.com * redistributions in binary form must reproduce the above copyright 1014039Sstacze01@arm.com * notice, this list of conditions and the following disclaimer in the 1114039Sstacze01@arm.com * documentation and/or other materials provided with the distribution; 1214039Sstacze01@arm.com * neither the name of the copyright holders nor the names of its 1314039Sstacze01@arm.com * contributors may be used to endorse or promote products derived from 1414039Sstacze01@arm.com * this software without specific prior written permission. 1514039Sstacze01@arm.com * 1614039Sstacze01@arm.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1714039Sstacze01@arm.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1814039Sstacze01@arm.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1914039Sstacze01@arm.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 2014039Sstacze01@arm.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2114039Sstacze01@arm.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2214039Sstacze01@arm.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2314039Sstacze01@arm.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2414039Sstacze01@arm.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2514039Sstacze01@arm.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2614039Sstacze01@arm.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2714039Sstacze01@arm.com */ 2814039Sstacze01@arm.com 2914039Sstacze01@arm.com#include <string> 3014039Sstacze01@arm.com 3114039Sstacze01@arm.com#include "base/loader/ecoff_object.hh" 3214039Sstacze01@arm.com#include "base/loader/symtab.hh" 3314039Sstacze01@arm.com 3414039Sstacze01@arm.com#include "base/trace.hh" // for DPRINTF 3514039Sstacze01@arm.com 3614039Sstacze01@arm.com#include "base/loader/exec_ecoff.h" 3714039Sstacze01@arm.com#include "base/loader/coff_sym.h" 3814039Sstacze01@arm.com#include "base/loader/coff_symconst.h" 3914039Sstacze01@arm.com 4014039Sstacze01@arm.comusing namespace std; 4114039Sstacze01@arm.com 4214039Sstacze01@arm.comObjectFile * 4314039Sstacze01@arm.comEcoffObject::tryFile(const string &fname, int fd, size_t len, uint8_t *data) 4414039Sstacze01@arm.com{ 4514039Sstacze01@arm.com if (((ecoff_filehdr *)data)->f_magic == ECOFF_MAGIC_ALPHA) { 4614039Sstacze01@arm.com // it's Alpha ECOFF 4714039Sstacze01@arm.com return new EcoffObject(fname, fd, len, data, 4814039Sstacze01@arm.com ObjectFile::Alpha, ObjectFile::Tru64); 4914039Sstacze01@arm.com } 5014039Sstacze01@arm.com else { 5114039Sstacze01@arm.com return NULL; 5214039Sstacze01@arm.com } 5314039Sstacze01@arm.com} 5414039Sstacze01@arm.com 5514039Sstacze01@arm.com 5614039Sstacze01@arm.comEcoffObject::EcoffObject(const string &_filename, int _fd, 5714039Sstacze01@arm.com size_t _len, uint8_t *_data, 5814039Sstacze01@arm.com Arch _arch, OpSys _opSys) 5914039Sstacze01@arm.com : ObjectFile(_filename, _fd, _len, _data, _arch, _opSys) 6014039Sstacze01@arm.com{ 6114039Sstacze01@arm.com execHdr = (ecoff_exechdr *)fileData; 6214039Sstacze01@arm.com fileHdr = &(execHdr->f); 6314039Sstacze01@arm.com aoutHdr = &(execHdr->a); 6414039Sstacze01@arm.com 6514039Sstacze01@arm.com entry = aoutHdr->entry; 6614039Sstacze01@arm.com 6714039Sstacze01@arm.com text.baseAddr = aoutHdr->text_start; 6814039Sstacze01@arm.com text.size = aoutHdr->tsize; 6914039Sstacze01@arm.com text.fileImage = fileData + ECOFF_TXTOFF(execHdr); 7014039Sstacze01@arm.com 7114039Sstacze01@arm.com data.baseAddr = aoutHdr->data_start; 7214039Sstacze01@arm.com data.size = aoutHdr->dsize; 7314039Sstacze01@arm.com data.fileImage = fileData + ECOFF_DATOFF(execHdr); 7414039Sstacze01@arm.com 7514039Sstacze01@arm.com bss.baseAddr = aoutHdr->bss_start; 7614039Sstacze01@arm.com bss.size = aoutHdr->bsize; 7714039Sstacze01@arm.com bss.fileImage = NULL; 7814039Sstacze01@arm.com 7914039Sstacze01@arm.com DPRINTFR(Loader, "text: 0x%x %d\ndata: 0x%x %d\nbss: 0x%x %d\n", 8014039Sstacze01@arm.com text.baseAddr, text.size, data.baseAddr, data.size, 8114039Sstacze01@arm.com bss.baseAddr, bss.size); 8214039Sstacze01@arm.com} 8314039Sstacze01@arm.com 8414039Sstacze01@arm.com 8514039Sstacze01@arm.combool 8614039Sstacze01@arm.comEcoffObject::loadGlobalSymbols(SymbolTable *symtab) 8714039Sstacze01@arm.com{ 8814039Sstacze01@arm.com if (!symtab) 8914039Sstacze01@arm.com return false; 9014039Sstacze01@arm.com 9114039Sstacze01@arm.com if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) { 9214039Sstacze01@arm.com warn("loadGlobalSymbols: wrong magic on %s\n", filename); 9314039Sstacze01@arm.com return false; 9414039Sstacze01@arm.com } 9514039Sstacze01@arm.com 9614039Sstacze01@arm.com ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr); 9714039Sstacze01@arm.com if (syms->magic != magicSym2) { 9814039Sstacze01@arm.com warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename); 9914039Sstacze01@arm.com return false; 10014039Sstacze01@arm.com } 10114039Sstacze01@arm.com 10214039Sstacze01@arm.com ecoff_extsym *ext_syms = (ecoff_extsym *)(fileData + syms->cbExtOffset); 10314039Sstacze01@arm.com 10414039Sstacze01@arm.com char *ext_strings = (char *)(fileData + syms->cbSsExtOffset); 10514039Sstacze01@arm.com for (int i = 0; i < syms->iextMax; i++) { 10614039Sstacze01@arm.com ecoff_sym *entry = &(ext_syms[i].asym); 10714039Sstacze01@arm.com if (entry->iss != -1) 10814039Sstacze01@arm.com symtab->insert(entry->value, ext_strings + entry->iss); 10914039Sstacze01@arm.com } 11014039Sstacze01@arm.com 11114039Sstacze01@arm.com return true; 11214039Sstacze01@arm.com} 11314039Sstacze01@arm.com 11414039Sstacze01@arm.combool 11514039Sstacze01@arm.comEcoffObject::loadLocalSymbols(SymbolTable *symtab) 11614039Sstacze01@arm.com{ 11714039Sstacze01@arm.com if (!symtab) 11814039Sstacze01@arm.com return false; 11914039Sstacze01@arm.com 12014039Sstacze01@arm.com if (fileHdr->f_magic != ECOFF_MAGIC_ALPHA) { 12114039Sstacze01@arm.com warn("loadGlobalSymbols: wrong magic on %s\n", filename); 12214039Sstacze01@arm.com return false; 12314039Sstacze01@arm.com } 12414039Sstacze01@arm.com 12514039Sstacze01@arm.com ecoff_symhdr *syms = (ecoff_symhdr *)(fileData + fileHdr->f_symptr); 12614039Sstacze01@arm.com if (syms->magic != magicSym2) { 12714039Sstacze01@arm.com warn("loadGlobalSymbols: bad symbol header magic on %s\n", filename); 12814039Sstacze01@arm.com return false; 12914039Sstacze01@arm.com } 13014039Sstacze01@arm.com 13114039Sstacze01@arm.com ecoff_sym *local_syms = (ecoff_sym *)(fileData + syms->cbSymOffset); 13214039Sstacze01@arm.com char *local_strings = (char *)(fileData + syms->cbSsOffset); 13314039Sstacze01@arm.com ecoff_fdr *fdesc = (ecoff_fdr *)(fileData + syms->cbFdOffset); 13414039Sstacze01@arm.com 13514039Sstacze01@arm.com for (int i = 0; i < syms->ifdMax; i++) { 13614039Sstacze01@arm.com ecoff_sym *entry = (ecoff_sym *)(local_syms + fdesc[i].isymBase); 13714039Sstacze01@arm.com char *strings = (char *)(local_strings + fdesc[i].issBase); 13814039Sstacze01@arm.com for (int j = 0; j < fdesc[i].csym; j++) { 13914039Sstacze01@arm.com if (entry[j].st == stGlobal || entry[j].st == stProc) 14014039Sstacze01@arm.com if (entry[j].iss != -1) 14114039Sstacze01@arm.com symtab->insert(entry[j].value, strings + entry[j].iss); 14214039Sstacze01@arm.com } 14314039Sstacze01@arm.com } 14414039Sstacze01@arm.com 14514039Sstacze01@arm.com for (int i = 0; i < syms->isymMax; i++) { 14614039Sstacze01@arm.com ecoff_sym *entry = &(local_syms[i]); 14714039Sstacze01@arm.com if (entry->st == stProc) 14814039Sstacze01@arm.com symtab->insert(entry->value, local_strings + entry->iss); 14914039Sstacze01@arm.com } 15014039Sstacze01@arm.com 15114039Sstacze01@arm.com return true; 15214039Sstacze01@arm.com} 15314039Sstacze01@arm.com