| /* |
| * Copyright (c) 2022 The Regents of the University of California. |
| * 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. |
| */ |
| |
| #include "cpu/probes/pc_count_tracker.hh" |
| |
| |
| namespace gem5 |
| { |
| |
| PcCountTracker::PcCountTracker(const PcCountTrackerParams &p) |
| : ProbeListenerObject(p), |
| cpuptr(p.core), |
| manager(p.ptmanager) |
| { |
| if (!cpuptr || !manager) { |
| fatal("%s is NULL", !cpuptr ? "CPU": "PcCountTrackerManager"); |
| } |
| for (int i = 0; i < p.targets.size(); i++) { |
| // initialize the set of targeting Program Counter addresses |
| targetPC.insert(p.targets[i].getPC()); |
| } |
| } |
| |
| void |
| PcCountTracker::regProbeListeners() |
| { |
| // connect the probe listener with the probe "RetriedInstsPC" in the |
| // corresponding core. |
| // when "RetiredInstsPC" notifies the probe listener, then the function |
| // 'check_pc' is automatically called |
| typedef ProbeListenerArg<PcCountTracker, Addr> PcCountTrackerListener; |
| listeners.push_back(new PcCountTrackerListener(this, "RetiredInstsPC", |
| &PcCountTracker::checkPc)); |
| } |
| |
| void |
| PcCountTracker::checkPc(const Addr& pc) { |
| if (targetPC.find(pc) != targetPC.end()) { |
| // if the PC is one of the target PCs, then notify the |
| // PcCounterTrackerManager by calling its `check_count` function |
| manager->checkCount(pc); |
| } |
| } |
| |
| } // namespace gem5 |