abc76f20cb
creation and initialization now happens in python. Parameter objects are generated and initialized by python. The .ini file is now solely for debugging purposes and is not used in construction of the objects in any way. --HG-- extra : convert_revision : 7e722873e417cb3d696f2e34c35ff488b7bff4ed
108 lines
3.4 KiB
C++
108 lines
3.4 KiB
C++
/*
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* Copyright (c) 2004-2005 The Regents of The University of Michigan
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* Authors: Erik Hallnor
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*/
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/**
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* @file
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* Declaration of a IBM memory trace format reader.
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*/
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#include <sstream>
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#include "base/misc.hh" // for fatal
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#include "cpu/trace/reader/ibm_reader.hh"
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#include "params/IBMReader.hh"
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using namespace std;
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IBMReader::IBMReader(const string &name, const string &filename)
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: MemTraceReader(name)
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{
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if (strcmp((filename.c_str() + filename.length() -3), ".gz") == 0) {
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// Compressed file, need to use a pipe to gzip.
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stringstream buf;
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buf << "gzip -d -c " << filename << endl;
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trace = popen(buf.str().c_str(), "r");
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} else {
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trace = fopen(filename.c_str(), "rb");
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}
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if (!trace) {
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fatal("Can't open file %s", filename);
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}
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}
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Tick
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IBMReader::getNextReq(MemReqPtr &req)
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{
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MemReqPtr tmp_req;
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int c = getc(trace);
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if (c != EOF) {
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tmp_req = new MemReq();
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//int cpu_id = (c & 0xf0) >> 4;
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int type = c & 0x0f;
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// We have L1 miss traces, so all accesses are 128 bytes
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tmp_req->size = 128;
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tmp_req->paddr = 0;
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for (int i = 2; i >= 0; --i) {
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c = getc(trace);
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if (c == EOF) {
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fatal("Unexpected end of file");
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}
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tmp_req->paddr |= ((c & 0xff) << (8 * i));
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}
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tmp_req->paddr = tmp_req->paddr << 7;
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switch(type) {
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case IBM_COND_EXCLUSIVE_FETCH:
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case IBM_READ_ONLY_FETCH:
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tmp_req->cmd = Read;
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break;
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case IBM_EXCLUSIVE_FETCH:
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case IBM_FETCH_NO_DATA:
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tmp_req->cmd = Write;
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break;
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case IBM_INST_FETCH:
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tmp_req->cmd = Read;
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break;
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default:
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fatal("Unknown trace entry type.");
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}
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}
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req = tmp_req;
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return 0;
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}
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IBMReader *
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IBMReaderParams::create()
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{
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return new IBMReader(name, filename);
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}
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