scheduler.cc revision 13244
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" 3612982Sgabeblack@google.com#include "systemc/ext/core/sc_main.hh" 3713182Sgabeblack@google.com#include "systemc/ext/utils/sc_report.hh" 3813182Sgabeblack@google.com#include "systemc/ext/utils/sc_report_handler.hh" 3912953Sgabeblack@google.com 4012953Sgabeblack@google.comnamespace sc_gem5 4112953Sgabeblack@google.com{ 4212953Sgabeblack@google.com 4312954Sgabeblack@google.comScheduler::Scheduler() : 4412962Sgabeblack@google.com eq(nullptr), readyEvent(this, false, ReadyPriority), 4512961Sgabeblack@google.com pauseEvent(this, false, PausePriority), 4612961Sgabeblack@google.com stopEvent(this, false, StopPriority), 4713182Sgabeblack@google.com scMain(nullptr), _throwToScMain(nullptr), 4812987Sgabeblack@google.com starvationEvent(this, false, StarvationPriority), 4913203Sgabeblack@google.com _elaborationDone(false), _started(false), _stopNow(false), 5013203Sgabeblack@google.com _status(StatusOther), maxTickEvent(this, false, MaxTickPriority), 5113140Sgabeblack@google.com _numCycles(0), _changeStamp(0), _current(nullptr), initDone(false), 5213209Sgabeblack@google.com runOnce(false) 5312954Sgabeblack@google.com{} 5412953Sgabeblack@google.com 5513072Sgabeblack@google.comScheduler::~Scheduler() 5613072Sgabeblack@google.com{ 5713072Sgabeblack@google.com // Clear out everything that belongs to us to make sure nobody tries to 5813072Sgabeblack@google.com // clear themselves out after the scheduler goes away. 5913076Sgabeblack@google.com clear(); 6013076Sgabeblack@google.com} 6113072Sgabeblack@google.com 6213076Sgabeblack@google.comvoid 6313076Sgabeblack@google.comScheduler::clear() 6413076Sgabeblack@google.com{ 6513072Sgabeblack@google.com // Delta notifications. 6613144Sgabeblack@google.com while (!deltas.empty()) 6713144Sgabeblack@google.com deltas.front()->deschedule(); 6813072Sgabeblack@google.com 6913072Sgabeblack@google.com // Timed notifications. 7013076Sgabeblack@google.com for (auto &tsp: timeSlots) { 7113076Sgabeblack@google.com TimeSlot *&ts = tsp.second; 7213144Sgabeblack@google.com while (!ts->events.empty()) 7313144Sgabeblack@google.com ts->events.front()->deschedule(); 7413088Sgabeblack@google.com deschedule(ts); 7513072Sgabeblack@google.com } 7613076Sgabeblack@google.com timeSlots.clear(); 7713072Sgabeblack@google.com 7813072Sgabeblack@google.com // gem5 events. 7913072Sgabeblack@google.com if (readyEvent.scheduled()) 8013088Sgabeblack@google.com deschedule(&readyEvent); 8113072Sgabeblack@google.com if (pauseEvent.scheduled()) 8213088Sgabeblack@google.com deschedule(&pauseEvent); 8313072Sgabeblack@google.com if (stopEvent.scheduled()) 8413088Sgabeblack@google.com deschedule(&stopEvent); 8513072Sgabeblack@google.com if (starvationEvent.scheduled()) 8613088Sgabeblack@google.com deschedule(&starvationEvent); 8713072Sgabeblack@google.com if (maxTickEvent.scheduled()) 8813088Sgabeblack@google.com deschedule(&maxTickEvent); 8913072Sgabeblack@google.com 9013072Sgabeblack@google.com Process *p; 9113072Sgabeblack@google.com while ((p = initList.getNext())) 9213072Sgabeblack@google.com p->popListNode(); 9313176Sgabeblack@google.com while ((p = readyListMethods.getNext())) 9413176Sgabeblack@google.com p->popListNode(); 9513176Sgabeblack@google.com while ((p = readyListThreads.getNext())) 9613072Sgabeblack@google.com p->popListNode(); 9713072Sgabeblack@google.com 9813072Sgabeblack@google.com Channel *c; 9913072Sgabeblack@google.com while ((c = updateList.getNext())) 10013072Sgabeblack@google.com c->popListNode(); 10113072Sgabeblack@google.com} 10213072Sgabeblack@google.com 10312953Sgabeblack@google.comvoid 10413067Sgabeblack@google.comScheduler::initPhase() 10512953Sgabeblack@google.com{ 10613194Sgabeblack@google.com for (Process *p = initList.getNext(); p; p = initList.getNext()) { 10712957Sgabeblack@google.com p->popListNode(); 10813180Sgabeblack@google.com 10913194Sgabeblack@google.com if (p->dontInitialize()) { 11013194Sgabeblack@google.com if (!p->hasStaticSensitivities() && !p->internal()) { 11113194Sgabeblack@google.com SC_REPORT_WARNING( 11213194Sgabeblack@google.com "(W558) disable() or dont_initialize() called on " 11313194Sgabeblack@google.com "process with no static sensitivity, it will be " 11413194Sgabeblack@google.com "orphaned", p->name()); 11513194Sgabeblack@google.com } 11613194Sgabeblack@google.com } else { 11713194Sgabeblack@google.com p->ready(); 11813180Sgabeblack@google.com } 11912957Sgabeblack@google.com } 12012957Sgabeblack@google.com 12113186Sgabeblack@google.com runUpdate(); 12213186Sgabeblack@google.com runDelta(); 12313067Sgabeblack@google.com 12412985Sgabeblack@google.com for (auto ets: eventsToSchedule) 12512985Sgabeblack@google.com eq->schedule(ets.first, ets.second); 12612985Sgabeblack@google.com eventsToSchedule.clear(); 12712985Sgabeblack@google.com 12813068Sgabeblack@google.com if (_started) { 12913096Sgabeblack@google.com if (!runToTime && starved()) 13013068Sgabeblack@google.com scheduleStarvationEvent(); 13113069Sgabeblack@google.com kernel->status(::sc_core::SC_RUNNING); 13213068Sgabeblack@google.com } 13312961Sgabeblack@google.com 13413067Sgabeblack@google.com initDone = true; 13513186Sgabeblack@google.com 13613186Sgabeblack@google.com status(StatusOther); 13712957Sgabeblack@google.com} 13812957Sgabeblack@google.com 13912957Sgabeblack@google.comvoid 14012957Sgabeblack@google.comScheduler::reg(Process *p) 14112957Sgabeblack@google.com{ 14213067Sgabeblack@google.com if (initDone) { 14313194Sgabeblack@google.com // If not marked as dontInitialize, mark as ready. 14413194Sgabeblack@google.com if (!p->dontInitialize()) 14513194Sgabeblack@google.com p->ready(); 14612957Sgabeblack@google.com } else { 14712957Sgabeblack@google.com // Otherwise, record that this process should be initialized once we 14812957Sgabeblack@google.com // get there. 14912957Sgabeblack@google.com initList.pushLast(p); 15012957Sgabeblack@google.com } 15112957Sgabeblack@google.com} 15212957Sgabeblack@google.com 15312957Sgabeblack@google.comvoid 15412953Sgabeblack@google.comScheduler::yield() 15512953Sgabeblack@google.com{ 15613176Sgabeblack@google.com // Pull a process from the active list. 15713209Sgabeblack@google.com _current = getNextReady(); 15812953Sgabeblack@google.com if (!_current) { 15912953Sgabeblack@google.com // There are no more processes, so return control to evaluate. 16012953Sgabeblack@google.com Fiber::primaryFiber()->run(); 16112953Sgabeblack@google.com } else { 16212953Sgabeblack@google.com _current->popListNode(); 16312953Sgabeblack@google.com // Switch to whatever Fiber is supposed to run this process. All 16412953Sgabeblack@google.com // Fibers which aren't running should be parked at this line. 16512953Sgabeblack@google.com _current->fiber()->run(); 16612961Sgabeblack@google.com // If the current process needs to be manually started, start it. 16713093Sgabeblack@google.com if (_current && _current->needsStart()) { 16813093Sgabeblack@google.com _current->needsStart(false); 16913182Sgabeblack@google.com try { 17013182Sgabeblack@google.com _current->run(); 17113182Sgabeblack@google.com } catch (...) { 17213182Sgabeblack@google.com throwToScMain(); 17313182Sgabeblack@google.com } 17413093Sgabeblack@google.com } 17512953Sgabeblack@google.com } 17612995Sgabeblack@google.com if (_current && _current->excWrapper) { 17712995Sgabeblack@google.com // Make sure this isn't a method process. 17812995Sgabeblack@google.com assert(!_current->needsStart()); 17912995Sgabeblack@google.com auto ew = _current->excWrapper; 18012995Sgabeblack@google.com _current->excWrapper = nullptr; 18112995Sgabeblack@google.com ew->throw_it(); 18212995Sgabeblack@google.com } 18312953Sgabeblack@google.com} 18412953Sgabeblack@google.com 18512953Sgabeblack@google.comvoid 18612954Sgabeblack@google.comScheduler::ready(Process *p) 18712953Sgabeblack@google.com{ 18813154Sgabeblack@google.com if (_stopNow) 18913154Sgabeblack@google.com return; 19013154Sgabeblack@google.com 19113176Sgabeblack@google.com if (p->procKind() == ::sc_core::SC_METHOD_PROC_) 19213176Sgabeblack@google.com readyListMethods.pushLast(p); 19312954Sgabeblack@google.com else 19413176Sgabeblack@google.com readyListThreads.pushLast(p); 19512953Sgabeblack@google.com 19613244Sgabeblack@google.com if (!inEvaluate()) 19713244Sgabeblack@google.com scheduleReadyEvent(); 19812954Sgabeblack@google.com} 19912954Sgabeblack@google.com 20012954Sgabeblack@google.comvoid 20113133Sgabeblack@google.comScheduler::resume(Process *p) 20213133Sgabeblack@google.com{ 20313133Sgabeblack@google.com if (initDone) 20413133Sgabeblack@google.com ready(p); 20513133Sgabeblack@google.com else 20613133Sgabeblack@google.com initList.pushLast(p); 20713133Sgabeblack@google.com} 20813133Sgabeblack@google.com 20913133Sgabeblack@google.combool 21013176Sgabeblack@google.comlistContains(ListNode *list, ListNode *target) 21113176Sgabeblack@google.com{ 21213176Sgabeblack@google.com ListNode *n = list->nextListNode; 21313176Sgabeblack@google.com while (n != list) 21413176Sgabeblack@google.com if (n == target) 21513176Sgabeblack@google.com return true; 21613176Sgabeblack@google.com return false; 21713176Sgabeblack@google.com} 21813176Sgabeblack@google.com 21913176Sgabeblack@google.combool 22013133Sgabeblack@google.comScheduler::suspend(Process *p) 22113133Sgabeblack@google.com{ 22213176Sgabeblack@google.com bool was_ready; 22313133Sgabeblack@google.com if (initDone) { 22413194Sgabeblack@google.com // After initialization, check if we're on a ready list. 22513176Sgabeblack@google.com was_ready = (p->nextListNode != nullptr); 22613133Sgabeblack@google.com p->popListNode(); 22713133Sgabeblack@google.com } else { 22813194Sgabeblack@google.com // Nothing is ready before init. 22913194Sgabeblack@google.com was_ready = false; 23013133Sgabeblack@google.com } 23113176Sgabeblack@google.com return was_ready; 23213133Sgabeblack@google.com} 23313133Sgabeblack@google.com 23413133Sgabeblack@google.comvoid 23512954Sgabeblack@google.comScheduler::requestUpdate(Channel *c) 23612954Sgabeblack@google.com{ 23712954Sgabeblack@google.com updateList.pushLast(c); 23813244Sgabeblack@google.com if (!inEvaluate()) 23913244Sgabeblack@google.com scheduleReadyEvent(); 24012954Sgabeblack@google.com} 24112954Sgabeblack@google.com 24212954Sgabeblack@google.comvoid 24312954Sgabeblack@google.comScheduler::scheduleReadyEvent() 24412954Sgabeblack@google.com{ 24512954Sgabeblack@google.com // Schedule the evaluate and update phases. 24612954Sgabeblack@google.com if (!readyEvent.scheduled()) { 24713069Sgabeblack@google.com schedule(&readyEvent); 24812987Sgabeblack@google.com if (starvationEvent.scheduled()) 24913069Sgabeblack@google.com deschedule(&starvationEvent); 25012987Sgabeblack@google.com } 25112987Sgabeblack@google.com} 25212987Sgabeblack@google.com 25312987Sgabeblack@google.comvoid 25412987Sgabeblack@google.comScheduler::scheduleStarvationEvent() 25512987Sgabeblack@google.com{ 25612987Sgabeblack@google.com if (!starvationEvent.scheduled()) { 25713069Sgabeblack@google.com schedule(&starvationEvent); 25812987Sgabeblack@google.com if (readyEvent.scheduled()) 25913069Sgabeblack@google.com deschedule(&readyEvent); 26012954Sgabeblack@google.com } 26112954Sgabeblack@google.com} 26212954Sgabeblack@google.com 26312954Sgabeblack@google.comvoid 26412954Sgabeblack@google.comScheduler::runReady() 26512954Sgabeblack@google.com{ 26613176Sgabeblack@google.com bool empty = readyListMethods.empty() && readyListThreads.empty(); 26713140Sgabeblack@google.com lastReadyTick = getCurTick(); 26812954Sgabeblack@google.com 26912954Sgabeblack@google.com // The evaluation phase. 27012953Sgabeblack@google.com do { 27113209Sgabeblack@google.com yield(); 27213209Sgabeblack@google.com } while (getNextReady()); 27312954Sgabeblack@google.com 27413140Sgabeblack@google.com if (!empty) { 27512954Sgabeblack@google.com _numCycles++; 27613140Sgabeblack@google.com _changeStamp++; 27713140Sgabeblack@google.com } 27812954Sgabeblack@google.com 27913244Sgabeblack@google.com if (_stopNow) { 28013244Sgabeblack@google.com status(StatusOther); 28113154Sgabeblack@google.com return; 28213244Sgabeblack@google.com } 28313154Sgabeblack@google.com 28413186Sgabeblack@google.com runUpdate(); 28513186Sgabeblack@google.com runDelta(); 28613061Sgabeblack@google.com 28713096Sgabeblack@google.com if (!runToTime && starved()) 28813096Sgabeblack@google.com scheduleStarvationEvent(); 28913096Sgabeblack@google.com 29013064Sgabeblack@google.com if (runOnce) 29113064Sgabeblack@google.com schedulePause(); 29213186Sgabeblack@google.com 29313186Sgabeblack@google.com status(StatusOther); 29412953Sgabeblack@google.com} 29512953Sgabeblack@google.com 29612953Sgabeblack@google.comvoid 29713186Sgabeblack@google.comScheduler::runUpdate() 29812953Sgabeblack@google.com{ 29913186Sgabeblack@google.com status(StatusUpdate); 30013186Sgabeblack@google.com 30113188Sgabeblack@google.com try { 30213188Sgabeblack@google.com Channel *channel = updateList.getNext(); 30313188Sgabeblack@google.com while (channel) { 30413188Sgabeblack@google.com channel->popListNode(); 30513188Sgabeblack@google.com channel->update(); 30613188Sgabeblack@google.com channel = updateList.getNext(); 30713188Sgabeblack@google.com } 30813188Sgabeblack@google.com } catch (...) { 30913188Sgabeblack@google.com throwToScMain(); 31012954Sgabeblack@google.com } 31112953Sgabeblack@google.com} 31212953Sgabeblack@google.com 31312961Sgabeblack@google.comvoid 31413186Sgabeblack@google.comScheduler::runDelta() 31513186Sgabeblack@google.com{ 31613186Sgabeblack@google.com status(StatusDelta); 31713188Sgabeblack@google.com 31813188Sgabeblack@google.com try { 31913188Sgabeblack@google.com while (!deltas.empty()) 32013188Sgabeblack@google.com deltas.front()->run(); 32113188Sgabeblack@google.com } catch (...) { 32213188Sgabeblack@google.com throwToScMain(); 32313188Sgabeblack@google.com } 32413186Sgabeblack@google.com} 32513186Sgabeblack@google.com 32613186Sgabeblack@google.comvoid 32712961Sgabeblack@google.comScheduler::pause() 32812961Sgabeblack@google.com{ 32913186Sgabeblack@google.com status(StatusPaused); 33012982Sgabeblack@google.com kernel->status(::sc_core::SC_PAUSED); 33113061Sgabeblack@google.com runOnce = false; 33213182Sgabeblack@google.com if (scMain && !scMain->finished()) 33313182Sgabeblack@google.com scMain->run(); 33412961Sgabeblack@google.com} 33512961Sgabeblack@google.com 33612961Sgabeblack@google.comvoid 33712961Sgabeblack@google.comScheduler::stop() 33812961Sgabeblack@google.com{ 33913186Sgabeblack@google.com status(StatusStopped); 34012982Sgabeblack@google.com kernel->stop(); 34113074Sgabeblack@google.com 34213076Sgabeblack@google.com clear(); 34313074Sgabeblack@google.com 34413061Sgabeblack@google.com runOnce = false; 34513182Sgabeblack@google.com if (scMain && !scMain->finished()) 34613182Sgabeblack@google.com scMain->run(); 34712961Sgabeblack@google.com} 34812961Sgabeblack@google.com 34912961Sgabeblack@google.comvoid 35012961Sgabeblack@google.comScheduler::start(Tick max_tick, bool run_to_time) 35112961Sgabeblack@google.com{ 35212961Sgabeblack@google.com // We should be running from sc_main. Keep track of that Fiber to return 35312961Sgabeblack@google.com // to later. 35412961Sgabeblack@google.com scMain = Fiber::currentFiber(); 35512961Sgabeblack@google.com 35612961Sgabeblack@google.com _started = true; 35713186Sgabeblack@google.com status(StatusOther); 35812987Sgabeblack@google.com runToTime = run_to_time; 35912961Sgabeblack@google.com 36012961Sgabeblack@google.com maxTick = max_tick; 36113140Sgabeblack@google.com lastReadyTick = getCurTick(); 36212961Sgabeblack@google.com 36313067Sgabeblack@google.com if (initDone) { 36413096Sgabeblack@google.com if (!runToTime && starved()) 36513068Sgabeblack@google.com scheduleStarvationEvent(); 36612982Sgabeblack@google.com kernel->status(::sc_core::SC_RUNNING); 36712982Sgabeblack@google.com } 36812961Sgabeblack@google.com 36913069Sgabeblack@google.com schedule(&maxTickEvent, maxTick); 37013069Sgabeblack@google.com 37112961Sgabeblack@google.com // Return to gem5 to let it run events, etc. 37212961Sgabeblack@google.com Fiber::primaryFiber()->run(); 37312961Sgabeblack@google.com 37412961Sgabeblack@google.com if (pauseEvent.scheduled()) 37513088Sgabeblack@google.com deschedule(&pauseEvent); 37612961Sgabeblack@google.com if (stopEvent.scheduled()) 37713088Sgabeblack@google.com deschedule(&stopEvent); 37812961Sgabeblack@google.com if (maxTickEvent.scheduled()) 37913088Sgabeblack@google.com deschedule(&maxTickEvent); 38012987Sgabeblack@google.com if (starvationEvent.scheduled()) 38113088Sgabeblack@google.com deschedule(&starvationEvent); 38213182Sgabeblack@google.com 38313182Sgabeblack@google.com if (_throwToScMain) { 38413182Sgabeblack@google.com const ::sc_core::sc_report *to_throw = _throwToScMain; 38513182Sgabeblack@google.com _throwToScMain = nullptr; 38613182Sgabeblack@google.com throw *to_throw; 38713182Sgabeblack@google.com } 38812961Sgabeblack@google.com} 38912961Sgabeblack@google.com 39012961Sgabeblack@google.comvoid 39113061Sgabeblack@google.comScheduler::oneCycle() 39213061Sgabeblack@google.com{ 39313061Sgabeblack@google.com runOnce = true; 39413095Sgabeblack@google.com scheduleReadyEvent(); 39513061Sgabeblack@google.com start(::MaxTick, false); 39613061Sgabeblack@google.com} 39713061Sgabeblack@google.com 39813061Sgabeblack@google.comvoid 39912961Sgabeblack@google.comScheduler::schedulePause() 40012961Sgabeblack@google.com{ 40112961Sgabeblack@google.com if (pauseEvent.scheduled()) 40212961Sgabeblack@google.com return; 40312961Sgabeblack@google.com 40413088Sgabeblack@google.com schedule(&pauseEvent); 40512961Sgabeblack@google.com} 40612961Sgabeblack@google.com 40712961Sgabeblack@google.comvoid 40813182Sgabeblack@google.comScheduler::throwToScMain(const ::sc_core::sc_report *r) 40913182Sgabeblack@google.com{ 41013182Sgabeblack@google.com if (!r) 41113182Sgabeblack@google.com r = reportifyException(); 41213182Sgabeblack@google.com _throwToScMain = r; 41313188Sgabeblack@google.com status(StatusOther); 41413182Sgabeblack@google.com scMain->run(); 41513182Sgabeblack@google.com} 41613182Sgabeblack@google.com 41713182Sgabeblack@google.comvoid 41812961Sgabeblack@google.comScheduler::scheduleStop(bool finish_delta) 41912961Sgabeblack@google.com{ 42012961Sgabeblack@google.com if (stopEvent.scheduled()) 42112961Sgabeblack@google.com return; 42212961Sgabeblack@google.com 42312961Sgabeblack@google.com if (!finish_delta) { 42413154Sgabeblack@google.com _stopNow = true; 42513076Sgabeblack@google.com // If we're not supposed to finish the delta cycle, flush all 42613076Sgabeblack@google.com // pending activity. 42713076Sgabeblack@google.com clear(); 42812961Sgabeblack@google.com } 42913088Sgabeblack@google.com schedule(&stopEvent); 43012961Sgabeblack@google.com} 43112961Sgabeblack@google.com 43212953Sgabeblack@google.comScheduler scheduler; 43312953Sgabeblack@google.com 43413182Sgabeblack@google.comnamespace { 43513182Sgabeblack@google.com 43613182Sgabeblack@google.comvoid 43713182Sgabeblack@google.comthrowingReportHandler(const ::sc_core::sc_report &r, 43813182Sgabeblack@google.com const ::sc_core::sc_actions &) 43913182Sgabeblack@google.com{ 44013182Sgabeblack@google.com throw r; 44113182Sgabeblack@google.com} 44213182Sgabeblack@google.com 44313182Sgabeblack@google.com} // anonymous namespace 44413182Sgabeblack@google.com 44513182Sgabeblack@google.comconst ::sc_core::sc_report * 44613182Sgabeblack@google.comreportifyException() 44713182Sgabeblack@google.com{ 44813182Sgabeblack@google.com ::sc_core::sc_report_handler_proc old_handler = 44913182Sgabeblack@google.com ::sc_core::sc_report_handler::get_handler(); 45013182Sgabeblack@google.com ::sc_core::sc_report_handler::set_handler(&throwingReportHandler); 45113182Sgabeblack@google.com 45213182Sgabeblack@google.com try { 45313182Sgabeblack@google.com try { 45413182Sgabeblack@google.com // Rethrow the current exception so we can catch it and throw an 45513182Sgabeblack@google.com // sc_report instead if it's not a type we recognize/can handle. 45613182Sgabeblack@google.com throw; 45713182Sgabeblack@google.com } catch (const ::sc_core::sc_report &) { 45813182Sgabeblack@google.com // It's already a sc_report, so nothing to do. 45913182Sgabeblack@google.com throw; 46013182Sgabeblack@google.com } catch (const ::sc_core::sc_unwind_exception &) { 46113182Sgabeblack@google.com panic("Kill/reset exception escaped a Process::run()"); 46213182Sgabeblack@google.com } catch (const std::exception &e) { 46313182Sgabeblack@google.com SC_REPORT_ERROR("uncaught exception", e.what()); 46413182Sgabeblack@google.com } catch (const char *msg) { 46513182Sgabeblack@google.com SC_REPORT_ERROR("uncaught exception", msg); 46613182Sgabeblack@google.com } catch (...) { 46713182Sgabeblack@google.com SC_REPORT_ERROR("uncaught exception", "UNKNOWN EXCEPTION"); 46813182Sgabeblack@google.com } 46913182Sgabeblack@google.com } catch (const ::sc_core::sc_report &r) { 47013182Sgabeblack@google.com ::sc_core::sc_report_handler::set_handler(old_handler); 47113182Sgabeblack@google.com return &r; 47213182Sgabeblack@google.com } 47313182Sgabeblack@google.com panic("No exception thrown in reportifyException."); 47413182Sgabeblack@google.com} 47513182Sgabeblack@google.com 47612953Sgabeblack@google.com} // namespace sc_gem5 477