| /* |
| * Copyright (c) 2004-2005 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. |
| */ |
| |
| /** |
| * @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); |
| } |
| |
| Tick |
| M5Reader::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) |