mem_trace.cc revision 11437:210624864179
1360SN/A/* 21458SN/A * Copyright (c) 2015 ARM Limited 3360SN/A * All rights reserved 4360SN/A * 5360SN/A * The license below extends only to copyright in the software and shall 6360SN/A * not be construed as granting a license to any other intellectual 7360SN/A * property including but not limited to intellectual property relating 8360SN/A * to a hardware implementation of the functionality of the software 9360SN/A * licensed hereunder. You may use the software subject to the license 10360SN/A * terms below provided that you ensure that this notice is replicated 11360SN/A * unmodified and in its entirety in all distributions of the software, 12360SN/A * modified or unmodified, in source code or in binary form. 13360SN/A * 14360SN/A * Redistribution and use in source and binary forms, with or without 15360SN/A * modification, are permitted provided that the following conditions are 16360SN/A * met: redistributions of source code must retain the above copyright 17360SN/A * notice, this list of conditions and the following disclaimer; 18360SN/A * redistributions in binary form must reproduce the above copyright 19360SN/A * notice, this list of conditions and the following disclaimer in the 20360SN/A * documentation and/or other materials provided with the distribution; 21360SN/A * neither the name of the copyright holders nor the names of its 22360SN/A * contributors may be used to endorse or promote products derived from 23360SN/A * this software without specific prior written permission. 24360SN/A * 25360SN/A * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 26360SN/A * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 272665Ssaidi@eecs.umich.edu * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 282665Ssaidi@eecs.umich.edu * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 292665Ssaidi@eecs.umich.edu * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 30360SN/A * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 31360SN/A * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 322093SN/A * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 33360SN/A * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 34360SN/A * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 356712Snate@binkert.org * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 366712Snate@binkert.org * 37360SN/A * Authors: Andreas Hansson 38360SN/A * Andreas Sandberg 397680Sgblack@eecs.umich.edu */ 402474SN/A 41360SN/A#include "mem/probes/mem_trace.hh" 426658Snate@binkert.org 438229Snate@binkert.org#include "base/callback.hh" 442680Sktlim@umich.edu#include "base/output.hh" 458232Snate@binkert.org#include "params/MemTraceProbe.hh" 462474SN/A#include "proto/packet.pb.h" 47360SN/A 488229Snate@binkert.orgMemTraceProbe::MemTraceProbe(MemTraceProbeParams *p) 498229Snate@binkert.org : BaseMemProbe(p), 506029Ssteve.reinhardt@amd.com traceStream(nullptr), 51360SN/A withPC(p->with_pc) 52360SN/A{ 532107SN/A std::string filename; 54360SN/A if (p->trace_file != "") { 55360SN/A // If the trace file is not specified as an absolute path, 563114Sgblack@eecs.umich.edu // append the current simulation output directory 57360SN/A filename = simout.resolve(p->trace_file); 586702Sgblack@eecs.umich.edu 596701Sgblack@eecs.umich.edu const std::string suffix = ".gz"; 606702Sgblack@eecs.umich.edu // If trace_compress has been set, check the suffix. Append 616111Ssteve.reinhardt@amd.com // accordingly. 626111Ssteve.reinhardt@amd.com if (p->trace_compress && 637823Ssteve.reinhardt@amd.com filename.compare(filename.size() - suffix.size(), suffix.size(), 646701Sgblack@eecs.umich.edu suffix) != 0) 656701Sgblack@eecs.umich.edu filename = filename + suffix; 666701Sgblack@eecs.umich.edu } else { 676701Sgblack@eecs.umich.edu // Generate a filename from the name of the SimObject. Append .trc 68360SN/A // and .gz if we want compression enabled. 692680Sktlim@umich.edu filename = simout.resolve(name() + ".trc" + 70360SN/A (p->trace_compress ? ".gz" : "")); 712495SN/A } 7210223Ssteve.reinhardt@amd.com 73360SN/A traceStream = new ProtoOutputStream(filename); 741450SN/A 755958Sgblack@eecs.umich.edu // Create a protobuf message for the header and write it to 76360SN/A // the stream 77360SN/A ProtoMessage::PacketHeader header_msg; 78360SN/A header_msg.set_obj_id(name()); 791450SN/A header_msg.set_tick_freq(SimClock::Frequency); 803114Sgblack@eecs.umich.edu traceStream->write(header_msg); 812680Sktlim@umich.edu 82360SN/A // Register a callback to compensate for the destructor not 831969SN/A // being called. The callback forces the stream to flush and 842484SN/A // closes the output file. 852484SN/A registerExitCallback( 86360SN/A new MakeCallback<MemTraceProbe, &MemTraceProbe::closeStreams>(this)); 87360SN/A} 88360SN/A 891450SN/Avoid 903114Sgblack@eecs.umich.eduMemTraceProbe::closeStreams() 912680Sktlim@umich.edu{ 92360SN/A if (traceStream != NULL) 936701Sgblack@eecs.umich.edu delete traceStream; 941969SN/A} 956701Sgblack@eecs.umich.edu 96360SN/Avoid 971458SN/AMemTraceProbe::handleRequest(const ProbePoints::PacketInfo &pkt_info) 98360SN/A{ 99360SN/A ProtoMessage::Packet pkt_msg; 100360SN/A 1011450SN/A pkt_msg.set_tick(curTick()); 1028149SChris.Emmons@ARM.com pkt_msg.set_cmd(pkt_info.cmd.toInt()); 1038149SChris.Emmons@ARM.com pkt_msg.set_flags(pkt_info.flags); 1048149SChris.Emmons@ARM.com pkt_msg.set_addr(pkt_info.addr); 1058149SChris.Emmons@ARM.com pkt_msg.set_size(pkt_info.size); 1068149SChris.Emmons@ARM.com if (withPC && pkt_info.pc != 0) 1078149SChris.Emmons@ARM.com pkt_msg.set_pc(pkt_info.pc); 1088149SChris.Emmons@ARM.com 1098149SChris.Emmons@ARM.com traceStream->write(pkt_msg); 1108149SChris.Emmons@ARM.com} 1118149SChris.Emmons@ARM.com 1128149SChris.Emmons@ARM.com 1138149SChris.Emmons@ARM.comMemTraceProbe * 1143114Sgblack@eecs.umich.eduMemTraceProbeParams::create() 1152680Sktlim@umich.edu{ 116360SN/A return new MemTraceProbe(this); 1176029Ssteve.reinhardt@amd.com} 1186029Ssteve.reinhardt@amd.com