/* * Copyright (c) 2004, 2005 * The Regents of The University of Michigan * All Rights Reserved * * This code is part of the M5 simulator, developed by Nathan Binkert, * Erik Hallnor, Steve Raasch, and Steve Reinhardt, with contributions * from Ron Dreslinski, Dave Greene, Lisa Hsu, Kevin Lim, Ali Saidi, * and Andrew Schultz. * * Permission is granted to use, copy, create derivative works and * redistribute this software and such derivative works for any * purpose, so long as the copyright notice above, this grant of * permission, and the disclaimer below appear in all copies made; and * so long as the name of The University of Michigan is not used in * any advertising or publicity pertaining to the use or distribution * of this software without specific, written prior authorization. * * THIS SOFTWARE IS PROVIDED AS IS, WITHOUT REPRESENTATION FROM THE * UNIVERSITY OF MICHIGAN AS TO ITS FITNESS FOR ANY PURPOSE, AND * WITHOUT WARRANTY BY THE UNIVERSITY OF MICHIGAN OF ANY KIND, EITHER * EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR * PURPOSE. THE REGENTS OF THE UNIVERSITY OF MICHIGAN SHALL NOT BE * LIABLE FOR ANY DAMAGES, INCLUDING DIRECT, SPECIAL, INDIRECT, * INCIDENTAL, OR CONSEQUENTIAL DAMAGES, WITH RESPECT TO ANY CLAIM * ARISING OUT OF OR IN CONNECTION WITH THE USE OF THE SOFTWARE, EVEN * IF IT HAS BEEN OR IS HEREAFTER ADVISED OF THE POSSIBILITY OF SUCH * DAMAGES. *//** * @file * Declaration of a memory trace reader for a M5 memory trace. */#include "cpu/trace/reader/m5_reader.hh"#include "mem/trace/m5_format.hh"#include "mem/mem_cmd.hh"#include "sim/builder.hh"using namespace std;M5Reader::M5Reader(const string &name, const string &filename)    : MemTraceReader(name){    traceFile.open(filename.c_str(), ios::binary);}TickM5Reader::getNextReq(MemReqPtr &req){    M5Format ref;        MemReqPtr tmp_req;    // Need to read EOF char before eof() will return true.    traceFile.read((char*) &ref, sizeof(ref));    if (!traceFile.eof()) {	//traceFile.read((char*) &ref, sizeof(ref));#ifndef NDEBUG	int gcount = traceFile.gcount();	assert(gcount != 0 || traceFile.eof());	assert(gcount == sizeof(ref));	assert(ref.cmd < 12);#endif	tmp_req = new MemReq();	tmp_req->paddr = ref.paddr;	tmp_req->asid = ref.asid;	// Assume asid == thread_num	tmp_req->thread_num = ref.asid;	tmp_req->cmd = (MemCmdEnum)ref.cmd;	tmp_req->size = ref.size;	tmp_req->dest = ref.dest;    } else {	ref.cycle = 0;    }    req = tmp_req;    return ref.cycle;}BEGIN_DECLARE_SIM_OBJECT_PARAMS(M5Reader)      Param<string> filename;END_DECLARE_SIM_OBJECT_PARAMS(M5Reader)BEGIN_INIT_SIM_OBJECT_PARAMS(M5Reader)    INIT_PARAM(filename, "trace file")    END_INIT_SIM_OBJECT_PARAMS(M5Reader)CREATE_SIM_OBJECT(M5Reader){    return new M5Reader(getInstanceName(), filename);}REGISTER_SIM_OBJECT("M5Reader", M5Reader)