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/*
* Copyright (c) 2015 ARM Limited
* All rights reserved
*
* The license below extends only to copyright in the software and shall
* not be construed as granting a license to any other intellectual
* property including but not limited to intellectual property relating
* to a hardware implementation of the functionality of the software
* licensed hereunder. You may use the software subject to the license
* terms below provided that you ensure that this notice is replicated
* unmodified and in its entirety in all distributions of the software,
* modified or unmodified, in source code or in binary form.
*
* 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.
*
* Authors: Andreas Hansson
* Andreas Sandberg
*/
#include "mem/probes/mem_trace.hh"
#include "base/callback.hh"
#include "base/output.hh"
#include "params/MemTraceProbe.hh"
#include "proto/packet.pb.h"
MemTraceProbe::MemTraceProbe(MemTraceProbeParams *p)
: BaseMemProbe(p),
traceStream(nullptr)
{
std::string filename;
if (p->trace_file != "") {
// If the trace file is not specified as an absolute path,
// append the current simulation output directory
filename = simout.resolve(p->trace_file);
const std::string suffix = ".gz";
// If trace_compress has been set, check the suffix. Append
// accordingly.
if (p->trace_compress &&
filename.compare(filename.size() - suffix.size(), suffix.size(),
suffix) != 0)
filename = filename + suffix;
} else {
// Generate a filename from the name of the SimObject. Append .trc
// and .gz if we want compression enabled.
filename = simout.resolve(name() + ".trc" +
(p->trace_compress ? ".gz" : ""));
}
traceStream = new ProtoOutputStream(filename);
// Create a protobuf message for the header and write it to
// the stream
ProtoMessage::PacketHeader header_msg;
header_msg.set_obj_id(name());
header_msg.set_tick_freq(SimClock::Frequency);
traceStream->write(header_msg);
// Register a callback to compensate for the destructor not
// being called. The callback forces the stream to flush and
// closes the output file.
registerExitCallback(
new MakeCallback<MemTraceProbe, &MemTraceProbe::closeStreams>(this));
}
void
MemTraceProbe::closeStreams()
{
if (traceStream != NULL)
delete traceStream;
}
void
MemTraceProbe::handleRequest(const ProbePoints::PacketInfo &pkt_info)
{
ProtoMessage::Packet pkt_msg;
pkt_msg.set_tick(curTick());
pkt_msg.set_cmd(pkt_info.cmd.toInt());
pkt_msg.set_flags(pkt_info.flags);
pkt_msg.set_addr(pkt_info.addr);
pkt_msg.set_size(pkt_info.size);
traceStream->write(pkt_msg);
}
MemTraceProbe *
MemTraceProbeParams::create()
{
return new MemTraceProbe(this);
}
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