scheduler.cc revision 13317
112953Sgabeblack@google.com/* 212953Sgabeblack@google.com * Copyright 2018 Google, Inc. 312953Sgabeblack@google.com * 412953Sgabeblack@google.com * Redistribution and use in source and binary forms, with or without 512953Sgabeblack@google.com * modification, are permitted provided that the following conditions are 612953Sgabeblack@google.com * met: redistributions of source code must retain the above copyright 712953Sgabeblack@google.com * notice, this list of conditions and the following disclaimer; 812953Sgabeblack@google.com * redistributions in binary form must reproduce the above copyright 912953Sgabeblack@google.com * notice, this list of conditions and the following disclaimer in the 1012953Sgabeblack@google.com * documentation and/or other materials provided with the distribution; 1112953Sgabeblack@google.com * neither the name of the copyright holders nor the names of its 1212953Sgabeblack@google.com * contributors may be used to endorse or promote products derived from 1312953Sgabeblack@google.com * this software without specific prior written permission. 1412953Sgabeblack@google.com * 1512953Sgabeblack@google.com * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 1612953Sgabeblack@google.com * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 1712953Sgabeblack@google.com * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 1812953Sgabeblack@google.com * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 1912953Sgabeblack@google.com * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 2012953Sgabeblack@google.com * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 2112953Sgabeblack@google.com * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 2212953Sgabeblack@google.com * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 2312953Sgabeblack@google.com * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 2412953Sgabeblack@google.com * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 2512953Sgabeblack@google.com * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 2612953Sgabeblack@google.com * 2712953Sgabeblack@google.com * Authors: Gabe Black 2812953Sgabeblack@google.com */ 2912953Sgabeblack@google.com 3012953Sgabeblack@google.com#include "systemc/core/scheduler.hh" 3112953Sgabeblack@google.com 3212953Sgabeblack@google.com#include "base/fiber.hh" 3312954Sgabeblack@google.com#include "base/logging.hh" 3412954Sgabeblack@google.com#include "sim/eventq.hh" 3512982Sgabeblack@google.com#include "systemc/core/kernel.hh" 3613317Sgabeblack@google.com#include "systemc/ext/core/messages.hh" 3712982Sgabeblack@google.com#include "systemc/ext/core/sc_main.hh" 3813182Sgabeblack@google.com#include "systemc/ext/utils/sc_report.hh" 3913182Sgabeblack@google.com#include "systemc/ext/utils/sc_report_handler.hh" 4013312Sgabeblack@google.com#include "systemc/utils/report.hh" 4113245Sgabeblack@google.com#include "systemc/utils/tracefile.hh" 4212953Sgabeblack@google.com 4312953Sgabeblack@google.comnamespace sc_gem5 4412953Sgabeblack@google.com{ 4512953Sgabeblack@google.com 4612954Sgabeblack@google.comScheduler::Scheduler() : 4712962Sgabeblack@google.com eq(nullptr), readyEvent(this, false, ReadyPriority), 4812961Sgabeblack@google.com pauseEvent(this, false, PausePriority), 4912961Sgabeblack@google.com stopEvent(this, false, StopPriority), 5013182Sgabeblack@google.com scMain(nullptr), _throwToScMain(nullptr), 5112987Sgabeblack@google.com starvationEvent(this, false, StarvationPriority), 5213203Sgabeblack@google.com _elaborationDone(false), _started(false), _stopNow(false), 5313203Sgabeblack@google.com _status(StatusOther), maxTickEvent(this, false, MaxTickPriority), 5413245Sgabeblack@google.com timeAdvancesEvent(this, false, TimeAdvancesPriority), _numCycles(0), 5513245Sgabeblack@google.com _changeStamp(0), _current(nullptr), initDone(false), runOnce(false) 5612954Sgabeblack@google.com{} 5712953Sgabeblack@google.com 5813072Sgabeblack@google.comScheduler::~Scheduler() 5913072Sgabeblack@google.com{ 6013072Sgabeblack@google.com // Clear out everything that belongs to us to make sure nobody tries to 6113072Sgabeblack@google.com // clear themselves out after the scheduler goes away. 6213076Sgabeblack@google.com clear(); 6313076Sgabeblack@google.com} 6413072Sgabeblack@google.com 6513076Sgabeblack@google.comvoid 6613076Sgabeblack@google.comScheduler::clear() 6713076Sgabeblack@google.com{ 6813072Sgabeblack@google.com // Delta notifications. 6913144Sgabeblack@google.com while (!deltas.empty()) 7013144Sgabeblack@google.com deltas.front()->deschedule(); 7113072Sgabeblack@google.com 7213072Sgabeblack@google.com // Timed notifications. 7313076Sgabeblack@google.com for (auto &tsp: timeSlots) { 7413076Sgabeblack@google.com TimeSlot *&ts = tsp.second; 7513144Sgabeblack@google.com while (!ts->events.empty()) 7613144Sgabeblack@google.com ts->events.front()->deschedule(); 7713088Sgabeblack@google.com deschedule(ts); 7813072Sgabeblack@google.com } 7913076Sgabeblack@google.com timeSlots.clear(); 8013072Sgabeblack@google.com 8113072Sgabeblack@google.com // gem5 events. 8213072Sgabeblack@google.com if (readyEvent.scheduled()) 8313088Sgabeblack@google.com deschedule(&readyEvent); 8413072Sgabeblack@google.com if (pauseEvent.scheduled()) 8513088Sgabeblack@google.com deschedule(&pauseEvent); 8613072Sgabeblack@google.com if (stopEvent.scheduled()) 8713088Sgabeblack@google.com deschedule(&stopEvent); 8813072Sgabeblack@google.com if (starvationEvent.scheduled()) 8913088Sgabeblack@google.com deschedule(&starvationEvent); 9013072Sgabeblack@google.com if (maxTickEvent.scheduled()) 9113088Sgabeblack@google.com deschedule(&maxTickEvent); 9213245Sgabeblack@google.com if (timeAdvancesEvent.scheduled()) 9313245Sgabeblack@google.com deschedule(&timeAdvancesEvent); 9413072Sgabeblack@google.com 9513072Sgabeblack@google.com Process *p; 9613072Sgabeblack@google.com while ((p = initList.getNext())) 9713072Sgabeblack@google.com p->popListNode(); 9813176Sgabeblack@google.com while ((p = readyListMethods.getNext())) 9913176Sgabeblack@google.com p->popListNode(); 10013176Sgabeblack@google.com while ((p = readyListThreads.getNext())) 10113072Sgabeblack@google.com p->popListNode(); 10213072Sgabeblack@google.com 10313072Sgabeblack@google.com Channel *c; 10413072Sgabeblack@google.com while ((c = updateList.getNext())) 10513072Sgabeblack@google.com c->popListNode(); 10613072Sgabeblack@google.com} 10713072Sgabeblack@google.com 10812953Sgabeblack@google.comvoid 10913067Sgabeblack@google.comScheduler::initPhase() 11012953Sgabeblack@google.com{ 11113194Sgabeblack@google.com for (Process *p = initList.getNext(); p; p = initList.getNext()) { 11212957Sgabeblack@google.com p->popListNode(); 11313180Sgabeblack@google.com 11413194Sgabeblack@google.com if (p->dontInitialize()) { 11513194Sgabeblack@google.com if (!p->hasStaticSensitivities() && !p->internal()) { 11613317Sgabeblack@google.com SC_REPORT_WARNING(sc_core::SC_ID_DISABLE_WILL_ORPHAN_PROCESS_, 11713317Sgabeblack@google.com p->name()); 11813194Sgabeblack@google.com } 11913194Sgabeblack@google.com } else { 12013194Sgabeblack@google.com p->ready(); 12113180Sgabeblack@google.com } 12212957Sgabeblack@google.com } 12312957Sgabeblack@google.com 12413186Sgabeblack@google.com runUpdate(); 12513186Sgabeblack@google.com runDelta(); 12613067Sgabeblack@google.com 12712985Sgabeblack@google.com for (auto ets: eventsToSchedule) 12812985Sgabeblack@google.com eq->schedule(ets.first, ets.second); 12912985Sgabeblack@google.com eventsToSchedule.clear(); 13012985Sgabeblack@google.com 13113068Sgabeblack@google.com if (_started) { 13213096Sgabeblack@google.com if (!runToTime && starved()) 13313068Sgabeblack@google.com scheduleStarvationEvent(); 13413069Sgabeblack@google.com kernel->status(::sc_core::SC_RUNNING); 13513068Sgabeblack@google.com } 13612961Sgabeblack@google.com 13713067Sgabeblack@google.com initDone = true; 13813186Sgabeblack@google.com 13913186Sgabeblack@google.com status(StatusOther); 14013245Sgabeblack@google.com 14113245Sgabeblack@google.com scheduleTimeAdvancesEvent(); 14212957Sgabeblack@google.com} 14312957Sgabeblack@google.com 14412957Sgabeblack@google.comvoid 14512957Sgabeblack@google.comScheduler::reg(Process *p) 14612957Sgabeblack@google.com{ 14713067Sgabeblack@google.com if (initDone) { 14813194Sgabeblack@google.com // If not marked as dontInitialize, mark as ready. 14913194Sgabeblack@google.com if (!p->dontInitialize()) 15013194Sgabeblack@google.com p->ready(); 15112957Sgabeblack@google.com } else { 15212957Sgabeblack@google.com // Otherwise, record that this process should be initialized once we 15312957Sgabeblack@google.com // get there. 15412957Sgabeblack@google.com initList.pushLast(p); 15512957Sgabeblack@google.com } 15612957Sgabeblack@google.com} 15712957Sgabeblack@google.com 15812957Sgabeblack@google.comvoid 15912953Sgabeblack@google.comScheduler::yield() 16012953Sgabeblack@google.com{ 16113176Sgabeblack@google.com // Pull a process from the active list. 16213209Sgabeblack@google.com _current = getNextReady(); 16312953Sgabeblack@google.com if (!_current) { 16412953Sgabeblack@google.com // There are no more processes, so return control to evaluate. 16512953Sgabeblack@google.com Fiber::primaryFiber()->run(); 16612953Sgabeblack@google.com } else { 16712953Sgabeblack@google.com _current->popListNode(); 16812953Sgabeblack@google.com // Switch to whatever Fiber is supposed to run this process. All 16912953Sgabeblack@google.com // Fibers which aren't running should be parked at this line. 17012953Sgabeblack@google.com _current->fiber()->run(); 17112961Sgabeblack@google.com // If the current process needs to be manually started, start it. 17213093Sgabeblack@google.com if (_current && _current->needsStart()) { 17313093Sgabeblack@google.com _current->needsStart(false); 17413308Sgabeblack@google.com // If a process hasn't started yet, "resetting" it just starts it 17513308Sgabeblack@google.com // and signals its reset event. 17613308Sgabeblack@google.com if (_current->inReset()) 17713308Sgabeblack@google.com _current->resetEvent().notify(); 17813182Sgabeblack@google.com try { 17913182Sgabeblack@google.com _current->run(); 18013182Sgabeblack@google.com } catch (...) { 18113182Sgabeblack@google.com throwToScMain(); 18213182Sgabeblack@google.com } 18313093Sgabeblack@google.com } 18412953Sgabeblack@google.com } 18513259Sgabeblack@google.com if (_current && !_current->needsStart()) { 18613259Sgabeblack@google.com if (_current->excWrapper) { 18713259Sgabeblack@google.com auto ew = _current->excWrapper; 18813259Sgabeblack@google.com _current->excWrapper = nullptr; 18913259Sgabeblack@google.com ew->throw_it(); 19013260Sgabeblack@google.com } else if (_current->inReset()) { 19113259Sgabeblack@google.com _current->reset(false); 19213259Sgabeblack@google.com } 19312995Sgabeblack@google.com } 19412953Sgabeblack@google.com} 19512953Sgabeblack@google.com 19612953Sgabeblack@google.comvoid 19712954Sgabeblack@google.comScheduler::ready(Process *p) 19812953Sgabeblack@google.com{ 19913154Sgabeblack@google.com if (_stopNow) 20013154Sgabeblack@google.com return; 20113154Sgabeblack@google.com 20213176Sgabeblack@google.com if (p->procKind() == ::sc_core::SC_METHOD_PROC_) 20313176Sgabeblack@google.com readyListMethods.pushLast(p); 20412954Sgabeblack@google.com else 20513176Sgabeblack@google.com readyListThreads.pushLast(p); 20612953Sgabeblack@google.com 20713244Sgabeblack@google.com if (!inEvaluate()) 20813244Sgabeblack@google.com scheduleReadyEvent(); 20912954Sgabeblack@google.com} 21012954Sgabeblack@google.com 21112954Sgabeblack@google.comvoid 21213133Sgabeblack@google.comScheduler::resume(Process *p) 21313133Sgabeblack@google.com{ 21413133Sgabeblack@google.com if (initDone) 21513133Sgabeblack@google.com ready(p); 21613133Sgabeblack@google.com else 21713133Sgabeblack@google.com initList.pushLast(p); 21813133Sgabeblack@google.com} 21913133Sgabeblack@google.com 22013133Sgabeblack@google.combool 22113176Sgabeblack@google.comlistContains(ListNode *list, ListNode *target) 22213176Sgabeblack@google.com{ 22313176Sgabeblack@google.com ListNode *n = list->nextListNode; 22413176Sgabeblack@google.com while (n != list) 22513176Sgabeblack@google.com if (n == target) 22613176Sgabeblack@google.com return true; 22713176Sgabeblack@google.com return false; 22813176Sgabeblack@google.com} 22913176Sgabeblack@google.com 23013176Sgabeblack@google.combool 23113133Sgabeblack@google.comScheduler::suspend(Process *p) 23213133Sgabeblack@google.com{ 23313176Sgabeblack@google.com bool was_ready; 23413133Sgabeblack@google.com if (initDone) { 23513194Sgabeblack@google.com // After initialization, check if we're on a ready list. 23613176Sgabeblack@google.com was_ready = (p->nextListNode != nullptr); 23713133Sgabeblack@google.com p->popListNode(); 23813133Sgabeblack@google.com } else { 23913194Sgabeblack@google.com // Nothing is ready before init. 24013194Sgabeblack@google.com was_ready = false; 24113133Sgabeblack@google.com } 24213176Sgabeblack@google.com return was_ready; 24313133Sgabeblack@google.com} 24413133Sgabeblack@google.com 24513133Sgabeblack@google.comvoid 24612954Sgabeblack@google.comScheduler::requestUpdate(Channel *c) 24712954Sgabeblack@google.com{ 24812954Sgabeblack@google.com updateList.pushLast(c); 24913244Sgabeblack@google.com if (!inEvaluate()) 25013244Sgabeblack@google.com scheduleReadyEvent(); 25112954Sgabeblack@google.com} 25212954Sgabeblack@google.com 25312954Sgabeblack@google.comvoid 25412954Sgabeblack@google.comScheduler::scheduleReadyEvent() 25512954Sgabeblack@google.com{ 25612954Sgabeblack@google.com // Schedule the evaluate and update phases. 25712954Sgabeblack@google.com if (!readyEvent.scheduled()) { 25813069Sgabeblack@google.com schedule(&readyEvent); 25912987Sgabeblack@google.com if (starvationEvent.scheduled()) 26013069Sgabeblack@google.com deschedule(&starvationEvent); 26112987Sgabeblack@google.com } 26212987Sgabeblack@google.com} 26312987Sgabeblack@google.com 26412987Sgabeblack@google.comvoid 26512987Sgabeblack@google.comScheduler::scheduleStarvationEvent() 26612987Sgabeblack@google.com{ 26712987Sgabeblack@google.com if (!starvationEvent.scheduled()) { 26813069Sgabeblack@google.com schedule(&starvationEvent); 26912987Sgabeblack@google.com if (readyEvent.scheduled()) 27013069Sgabeblack@google.com deschedule(&readyEvent); 27112954Sgabeblack@google.com } 27212954Sgabeblack@google.com} 27312954Sgabeblack@google.com 27412954Sgabeblack@google.comvoid 27512954Sgabeblack@google.comScheduler::runReady() 27612954Sgabeblack@google.com{ 27713245Sgabeblack@google.com scheduleTimeAdvancesEvent(); 27813245Sgabeblack@google.com 27913176Sgabeblack@google.com bool empty = readyListMethods.empty() && readyListThreads.empty(); 28013140Sgabeblack@google.com lastReadyTick = getCurTick(); 28112954Sgabeblack@google.com 28212954Sgabeblack@google.com // The evaluation phase. 28313245Sgabeblack@google.com status(StatusEvaluate); 28412953Sgabeblack@google.com do { 28513209Sgabeblack@google.com yield(); 28613209Sgabeblack@google.com } while (getNextReady()); 28713275Sgabeblack@google.com _current = nullptr; 28812954Sgabeblack@google.com 28913140Sgabeblack@google.com if (!empty) { 29012954Sgabeblack@google.com _numCycles++; 29113140Sgabeblack@google.com _changeStamp++; 29213140Sgabeblack@google.com } 29312954Sgabeblack@google.com 29413244Sgabeblack@google.com if (_stopNow) { 29513244Sgabeblack@google.com status(StatusOther); 29613154Sgabeblack@google.com return; 29713244Sgabeblack@google.com } 29813154Sgabeblack@google.com 29913186Sgabeblack@google.com runUpdate(); 30013245Sgabeblack@google.com if (!traceFiles.empty()) 30113245Sgabeblack@google.com trace(true); 30213186Sgabeblack@google.com runDelta(); 30313061Sgabeblack@google.com 30413096Sgabeblack@google.com if (!runToTime && starved()) 30513096Sgabeblack@google.com scheduleStarvationEvent(); 30613096Sgabeblack@google.com 30713064Sgabeblack@google.com if (runOnce) 30813064Sgabeblack@google.com schedulePause(); 30913186Sgabeblack@google.com 31013186Sgabeblack@google.com status(StatusOther); 31112953Sgabeblack@google.com} 31212953Sgabeblack@google.com 31312953Sgabeblack@google.comvoid 31413186Sgabeblack@google.comScheduler::runUpdate() 31512953Sgabeblack@google.com{ 31613186Sgabeblack@google.com status(StatusUpdate); 31713186Sgabeblack@google.com 31813188Sgabeblack@google.com try { 31913188Sgabeblack@google.com Channel *channel = updateList.getNext(); 32013188Sgabeblack@google.com while (channel) { 32113188Sgabeblack@google.com channel->popListNode(); 32213188Sgabeblack@google.com channel->update(); 32313188Sgabeblack@google.com channel = updateList.getNext(); 32413188Sgabeblack@google.com } 32513188Sgabeblack@google.com } catch (...) { 32613188Sgabeblack@google.com throwToScMain(); 32712954Sgabeblack@google.com } 32812953Sgabeblack@google.com} 32912953Sgabeblack@google.com 33012961Sgabeblack@google.comvoid 33113186Sgabeblack@google.comScheduler::runDelta() 33213186Sgabeblack@google.com{ 33313186Sgabeblack@google.com status(StatusDelta); 33413188Sgabeblack@google.com 33513188Sgabeblack@google.com try { 33613188Sgabeblack@google.com while (!deltas.empty()) 33713289Sgabeblack@google.com deltas.back()->run(); 33813188Sgabeblack@google.com } catch (...) { 33913188Sgabeblack@google.com throwToScMain(); 34013188Sgabeblack@google.com } 34113186Sgabeblack@google.com} 34213186Sgabeblack@google.com 34313186Sgabeblack@google.comvoid 34412961Sgabeblack@google.comScheduler::pause() 34512961Sgabeblack@google.com{ 34613186Sgabeblack@google.com status(StatusPaused); 34712982Sgabeblack@google.com kernel->status(::sc_core::SC_PAUSED); 34813061Sgabeblack@google.com runOnce = false; 34913182Sgabeblack@google.com if (scMain && !scMain->finished()) 35013182Sgabeblack@google.com scMain->run(); 35112961Sgabeblack@google.com} 35212961Sgabeblack@google.com 35312961Sgabeblack@google.comvoid 35412961Sgabeblack@google.comScheduler::stop() 35512961Sgabeblack@google.com{ 35613186Sgabeblack@google.com status(StatusStopped); 35712982Sgabeblack@google.com kernel->stop(); 35813074Sgabeblack@google.com 35913076Sgabeblack@google.com clear(); 36013074Sgabeblack@google.com 36113061Sgabeblack@google.com runOnce = false; 36213182Sgabeblack@google.com if (scMain && !scMain->finished()) 36313182Sgabeblack@google.com scMain->run(); 36412961Sgabeblack@google.com} 36512961Sgabeblack@google.com 36612961Sgabeblack@google.comvoid 36712961Sgabeblack@google.comScheduler::start(Tick max_tick, bool run_to_time) 36812961Sgabeblack@google.com{ 36912961Sgabeblack@google.com // We should be running from sc_main. Keep track of that Fiber to return 37012961Sgabeblack@google.com // to later. 37112961Sgabeblack@google.com scMain = Fiber::currentFiber(); 37212961Sgabeblack@google.com 37312961Sgabeblack@google.com _started = true; 37413186Sgabeblack@google.com status(StatusOther); 37512987Sgabeblack@google.com runToTime = run_to_time; 37612961Sgabeblack@google.com 37712961Sgabeblack@google.com maxTick = max_tick; 37813140Sgabeblack@google.com lastReadyTick = getCurTick(); 37912961Sgabeblack@google.com 38013067Sgabeblack@google.com if (initDone) { 38113096Sgabeblack@google.com if (!runToTime && starved()) 38213068Sgabeblack@google.com scheduleStarvationEvent(); 38312982Sgabeblack@google.com kernel->status(::sc_core::SC_RUNNING); 38412982Sgabeblack@google.com } 38512961Sgabeblack@google.com 38613069Sgabeblack@google.com schedule(&maxTickEvent, maxTick); 38713245Sgabeblack@google.com scheduleTimeAdvancesEvent(); 38813069Sgabeblack@google.com 38912961Sgabeblack@google.com // Return to gem5 to let it run events, etc. 39012961Sgabeblack@google.com Fiber::primaryFiber()->run(); 39112961Sgabeblack@google.com 39212961Sgabeblack@google.com if (pauseEvent.scheduled()) 39313088Sgabeblack@google.com deschedule(&pauseEvent); 39412961Sgabeblack@google.com if (stopEvent.scheduled()) 39513088Sgabeblack@google.com deschedule(&stopEvent); 39612961Sgabeblack@google.com if (maxTickEvent.scheduled()) 39713088Sgabeblack@google.com deschedule(&maxTickEvent); 39812987Sgabeblack@google.com if (starvationEvent.scheduled()) 39913088Sgabeblack@google.com deschedule(&starvationEvent); 40013182Sgabeblack@google.com 40113182Sgabeblack@google.com if (_throwToScMain) { 40213182Sgabeblack@google.com const ::sc_core::sc_report *to_throw = _throwToScMain; 40313182Sgabeblack@google.com _throwToScMain = nullptr; 40413182Sgabeblack@google.com throw *to_throw; 40513182Sgabeblack@google.com } 40612961Sgabeblack@google.com} 40712961Sgabeblack@google.com 40812961Sgabeblack@google.comvoid 40913061Sgabeblack@google.comScheduler::oneCycle() 41013061Sgabeblack@google.com{ 41113061Sgabeblack@google.com runOnce = true; 41213095Sgabeblack@google.com scheduleReadyEvent(); 41313061Sgabeblack@google.com start(::MaxTick, false); 41413061Sgabeblack@google.com} 41513061Sgabeblack@google.com 41613061Sgabeblack@google.comvoid 41712961Sgabeblack@google.comScheduler::schedulePause() 41812961Sgabeblack@google.com{ 41912961Sgabeblack@google.com if (pauseEvent.scheduled()) 42012961Sgabeblack@google.com return; 42112961Sgabeblack@google.com 42213088Sgabeblack@google.com schedule(&pauseEvent); 42312961Sgabeblack@google.com} 42412961Sgabeblack@google.com 42512961Sgabeblack@google.comvoid 42613264Sgabeblack@google.comScheduler::throwToScMain() 42713182Sgabeblack@google.com{ 42813264Sgabeblack@google.com ::sc_core::sc_report report = reportifyException(); 42913264Sgabeblack@google.com _throwToScMain = &report; 43013188Sgabeblack@google.com status(StatusOther); 43113182Sgabeblack@google.com scMain->run(); 43213182Sgabeblack@google.com} 43313182Sgabeblack@google.com 43413182Sgabeblack@google.comvoid 43512961Sgabeblack@google.comScheduler::scheduleStop(bool finish_delta) 43612961Sgabeblack@google.com{ 43712961Sgabeblack@google.com if (stopEvent.scheduled()) 43812961Sgabeblack@google.com return; 43912961Sgabeblack@google.com 44012961Sgabeblack@google.com if (!finish_delta) { 44113154Sgabeblack@google.com _stopNow = true; 44213076Sgabeblack@google.com // If we're not supposed to finish the delta cycle, flush all 44313076Sgabeblack@google.com // pending activity. 44413076Sgabeblack@google.com clear(); 44512961Sgabeblack@google.com } 44613088Sgabeblack@google.com schedule(&stopEvent); 44712961Sgabeblack@google.com} 44812961Sgabeblack@google.com 44913245Sgabeblack@google.comvoid 45013245Sgabeblack@google.comScheduler::trace(bool delta) 45113245Sgabeblack@google.com{ 45213245Sgabeblack@google.com for (auto tf: traceFiles) 45313245Sgabeblack@google.com tf->trace(delta); 45413245Sgabeblack@google.com} 45513245Sgabeblack@google.com 45612953Sgabeblack@google.comScheduler scheduler; 45712953Sgabeblack@google.com 45813182Sgabeblack@google.comnamespace { 45913182Sgabeblack@google.com 46013182Sgabeblack@google.comvoid 46113182Sgabeblack@google.comthrowingReportHandler(const ::sc_core::sc_report &r, 46213182Sgabeblack@google.com const ::sc_core::sc_actions &) 46313182Sgabeblack@google.com{ 46413182Sgabeblack@google.com throw r; 46513182Sgabeblack@google.com} 46613182Sgabeblack@google.com 46713182Sgabeblack@google.com} // anonymous namespace 46813182Sgabeblack@google.com 46913264Sgabeblack@google.comconst ::sc_core::sc_report 47013182Sgabeblack@google.comreportifyException() 47113182Sgabeblack@google.com{ 47213312Sgabeblack@google.com ::sc_core::sc_report_handler_proc old_handler = reportHandlerProc; 47313182Sgabeblack@google.com ::sc_core::sc_report_handler::set_handler(&throwingReportHandler); 47413182Sgabeblack@google.com 47513182Sgabeblack@google.com try { 47613182Sgabeblack@google.com try { 47713182Sgabeblack@google.com // Rethrow the current exception so we can catch it and throw an 47813182Sgabeblack@google.com // sc_report instead if it's not a type we recognize/can handle. 47913182Sgabeblack@google.com throw; 48013182Sgabeblack@google.com } catch (const ::sc_core::sc_report &) { 48113182Sgabeblack@google.com // It's already a sc_report, so nothing to do. 48213182Sgabeblack@google.com throw; 48313182Sgabeblack@google.com } catch (const ::sc_core::sc_unwind_exception &) { 48413182Sgabeblack@google.com panic("Kill/reset exception escaped a Process::run()"); 48513182Sgabeblack@google.com } catch (const std::exception &e) { 48613317Sgabeblack@google.com SC_REPORT_ERROR( 48713317Sgabeblack@google.com sc_core::SC_ID_SIMULATION_UNCAUGHT_EXCEPTION_, e.what()); 48813182Sgabeblack@google.com } catch (const char *msg) { 48913317Sgabeblack@google.com SC_REPORT_ERROR( 49013317Sgabeblack@google.com sc_core::SC_ID_SIMULATION_UNCAUGHT_EXCEPTION_, msg); 49113182Sgabeblack@google.com } catch (...) { 49213317Sgabeblack@google.com SC_REPORT_ERROR( 49313317Sgabeblack@google.com sc_core::SC_ID_SIMULATION_UNCAUGHT_EXCEPTION_, 49413317Sgabeblack@google.com "UNKNOWN EXCEPTION"); 49513182Sgabeblack@google.com } 49613182Sgabeblack@google.com } catch (const ::sc_core::sc_report &r) { 49713182Sgabeblack@google.com ::sc_core::sc_report_handler::set_handler(old_handler); 49813264Sgabeblack@google.com return r; 49913182Sgabeblack@google.com } 50013182Sgabeblack@google.com panic("No exception thrown in reportifyException."); 50113182Sgabeblack@google.com} 50213182Sgabeblack@google.com 50312953Sgabeblack@google.com} // namespace sc_gem5 504